diff --git a/Android.mk b/Android.mk index 1ae9aaef1..dd7a2e011 100644 --- a/Android.mk +++ b/Android.mk @@ -19,8 +19,8 @@ SUPPORT_OGG ?= false OGG_LIBRARY_PATH := external/ogg VORBIS_LIBRARY_PATH := external/tremor -# Enable this if you want to support loading MP3 music via dr_mp3 -SUPPORT_MP3_DRMP3 ?= true +# Enable this if you want to support loading MP3 music via MINIMP3 +SUPPORT_MP3_MINIMP3 ?= true # Enable this if you want to support loading MP3 music via MPG123 SUPPORT_MP3_MPG123 ?= false @@ -120,8 +120,8 @@ ifeq ($(SUPPORT_OGG),true) LOCAL_STATIC_LIBRARIES += ogg vorbisidec endif -ifeq ($(SUPPORT_MP3_DRMP3),true) - LOCAL_CFLAGS += -DMUSIC_MP3_DRMP3 +ifeq ($(SUPPORT_MP3_MINIMP3),true) + LOCAL_CFLAGS += -DMUSIC_MP3_MINIMP3 endif # This needs to be a shared library to comply with the LGPL license diff --git a/CHANGES.txt b/CHANGES.txt index daf32755a..ec551adc8 100644 --- a/CHANGES.txt +++ b/CHANGES.txt @@ -1,6 +1,7 @@ 2.8.0: * Added support for loading wavpack sound files (https://www.wavpack.com/) * Added support for loading classic console sound files using Game_Music_Emu (https://github.com/libgme/game-music-emu) + * Use minimp3 instead of dr_mp3 as the default backend for MP3 music * Use libxmp instead of modplug as the default backend for MOD music To use libmodplug instead, configure using --enable-music-mod-modplug --disable-music-mod-xmp * Added support for FLAC audio in Ogg containers diff --git a/CMakeLists.txt b/CMakeLists.txt index 828aad534..b6a1c21ef 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -126,13 +126,13 @@ endif() option(SDL2MIXER_MP3 "Enable MP3 music" ON) -cmake_dependent_option(SDL2MIXER_MP3_DRMP3 "Support loading MP3 music via dr_mp3" ON SDL2MIXER_MP3 OFF) +cmake_dependent_option(SDL2MIXER_MP3_MINIMP3 "Support loading MP3 music via minimp3" ON SDL2MIXER_MP3 OFF) cmake_dependent_option(SDL2MIXER_MP3_MPG123 "Support loading MP3 music via MPG123" OFF SDL2MIXER_MP3 OFF) cmake_dependent_option(SDL2MIXER_MP3_MPG123_SHARED "Dynamically load mpg123" "${SDL2MIXER_DEPS_SHARED}" SDL2MIXER_MP3_MPG123 OFF) -if(SDL2MIXER_MP3 AND NOT (SDL2MIXER_MP3_DRMP3 OR SDL2MIXER_MP3_MPG123)) - message(FATAL_ERROR "MP3 support was enabled (SDL2MIXER_MP3) but neither drmp3 (SDL2MIXER_MP3_DRMP3) or mpg123 (SDL2MIXER_MP3_MPG123) were enabled.") +if(SDL2MIXER_MP3 AND NOT (SDL2MIXER_MP3_MINIMP3 OR SDL2MIXER_MP3_MPG123)) + message(FATAL_ERROR "MP3 support was enabled (SDL2MIXER_MP3) but neither minimp3 (SDL2MIXER_MP3_MINIMP3) or mpg123 (SDL2MIXER_MP3_MPG123) were enabled.") endif() option(SDL2MIXER_MIDI "Enable MIDI music" ON) @@ -219,10 +219,10 @@ add_library(SDL2_mixer src/codecs/mp3utils.c src/codecs/music_cmd.c src/codecs/music_drflac.c - src/codecs/music_drmp3.c src/codecs/music_flac.c src/codecs/music_fluidsynth.c src/codecs/music_gme.c + src/codecs/music_minimp3.c src/codecs/music_modplug.c src/codecs/music_mpg123.c src/codecs/music_nativemidi.c @@ -726,8 +726,8 @@ if(SDL2MIXER_MOD_XMP) endif() endif() -if(SDL2MIXER_MP3_DRMP3) - target_compile_definitions(SDL2_mixer PRIVATE MUSIC_MP3_DRMP3) +if(SDL2MIXER_MP3_MINIMP3) + target_compile_definitions(SDL2_mixer PRIVATE MUSIC_MP3_MINIMP3) endif() if(SDL2MIXER_MP3_MPG123) diff --git a/Makefile.os2 b/Makefile.os2 index df3fb4c4f..5524f70a9 100644 --- a/Makefile.os2 +++ b/Makefile.os2 @@ -33,8 +33,8 @@ USE_DRFLAC=no USE_OPUS=yes # mp3 music support (using mpg123) USE_MPG123=yes -# mp3 music support (using dr_mp3) -USE_DRMP3=no +# mp3 music support (using minimp3) +USE_MINIMP3=no # wavpack music support USE_WAVPACK=yes # wavpack DSD music support @@ -60,7 +60,7 @@ SRCS = utils.c effect_position.c effects_internal.c effect_stereoreverse.c mixer SRCS+= load_aiff.c load_voc.c music_wav.c & music_ogg.c music_ogg_stb.c music_opus.c & music_flac.c music_drflac.c music_wavpack.c & - mp3utils.c music_mpg123.c music_drmp3.c & + mp3utils.c music_mpg123.c music_minimp3.c & music_xmp.c music_modplug.c music_gme.c & music_fluidsynth.c music_timidity.c # timidity sources: @@ -142,8 +142,8 @@ NEED_LIBOGG=yes CFLAGS+= -DMUSIC_MP3_MPG123 LIBS+= mpg123.lib !endif -!ifeq USE_DRMP3 yes -CFLAGS+= -DMUSIC_MP3_DRMP3 +!ifeq USE_MINIMP3 yes +CFLAGS+= -DMUSIC_MP3_MINIMP3 !endif !ifeq USE_XMP yes diff --git a/README.txt b/README.txt index 2b9cca85c..80644bc1f 100644 --- a/README.txt +++ b/README.txt @@ -28,4 +28,4 @@ Support for software MIDI, MOD, and Opus are not included by default because of - When building with Xcode, you can edit the config at the top of the project to enable them, and you will need to include the appropriate framework in your application. - For Android, you can edit the config at the top of Android.mk to enable them. -The default MP3 support is provided using dr_mp3. SDL_mixer also supports using libmpg123: you can enable it by passing --enable-music-mp3-mpg123 to configure. +The default MP3 support is provided using minimp3. SDL_mixer also supports using libmpg123: you can enable it by passing --enable-music-mp3-mpg123 to configure. diff --git a/SDL2_mixerConfig.cmake.in b/SDL2_mixerConfig.cmake.in index 4bdd9f8ae..745171295 100644 --- a/SDL2_mixerConfig.cmake.in +++ b/SDL2_mixerConfig.cmake.in @@ -23,7 +23,7 @@ set(SDL2MIXER_MOD_XMP @SDL2MIXER_MOD_XMP@) set(SDL2MIXER_MOD_XMP_LITE @SDL2MIXER_MOD_XMP_LITE@) set(SDL2MIXER_MP3 @SDL2MIXER_MP3@) -set(SDL2MIXER_MP3_DRMP3 @SDL2MIXER_MP3_DRMP3@) +set(SDL2MIXER_MP3_MINIMP3 @SDL2MIXER_MP3_MINIMP3@) set(SDL2MIXER_MP3_MPG123 @SDL2MIXER_MP3_MPG123@) set(SDL2MIXER_MIDI @SDL2MIXER_MIDI@) diff --git a/VisualC-WinRT/SDL_mixer-UWP.vcxproj b/VisualC-WinRT/SDL_mixer-UWP.vcxproj index 326650966..7ab24e67a 100644 --- a/VisualC-WinRT/SDL_mixer-UWP.vcxproj +++ b/VisualC-WinRT/SDL_mixer-UWP.vcxproj @@ -38,10 +38,10 @@ - + @@ -69,10 +69,10 @@ - + @@ -202,7 +202,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console @@ -215,7 +215,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console @@ -228,7 +228,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console @@ -241,7 +241,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console @@ -254,7 +254,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console @@ -267,7 +267,7 @@ NotUsing false ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\external\ogg\include;..\external\vorbis\include;..\..\SDL\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) + DLL_EXPORT;NDEBUG;_CRT_SECURE_NO_WARNINGS;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_MID_TIMIDITY;%(PreprocessorDefinitions) Console diff --git a/VisualC-WinRT/SDL_mixer-UWP.vcxproj.filters b/VisualC-WinRT/SDL_mixer-UWP.vcxproj.filters index 66fbd13af..4b602766b 100644 --- a/VisualC-WinRT/SDL_mixer-UWP.vcxproj.filters +++ b/VisualC-WinRT/SDL_mixer-UWP.vcxproj.filters @@ -61,9 +61,6 @@ Sources - - Sources - Sources @@ -73,6 +70,9 @@ Sources + + Sources + Sources @@ -156,9 +156,6 @@ Sources - - Sources - Sources @@ -168,6 +165,9 @@ Sources + + Sources + Sources @@ -207,4 +207,4 @@ {9c43d0b0-edae-4dea-bb19-5bd7972e58bc} - \ No newline at end of file + diff --git a/VisualC/SDL_mixer.vcxproj b/VisualC/SDL_mixer.vcxproj index c3adae436..ba92de978 100644 --- a/VisualC/SDL_mixer.vcxproj +++ b/VisualC/SDL_mixer.vcxproj @@ -114,7 +114,7 @@ /D OGG_DYNAMIC=\"libvorbisfile-3.dll\" %(AdditionalOptions) Disabled ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\src\codecs\native_midi;external\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;_DEBUG;WIN32;_WINDOWS;MUSIC_WAV;MUSIC_WAVPACK;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE + DLL_EXPORT;_DEBUG;WIN32;_WINDOWS;MUSIC_WAV;MUSIC_WAVPACK;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE MultiThreadedDLL Level3 OldStyle @@ -144,7 +144,7 @@ /D OGG_DYNAMIC=\"libvorbisfile-3.dll\" %(AdditionalOptions) Disabled ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\src\codecs\native_midi;external\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;_DEBUG;WIN32;_WINDOWS;MUSIC_WAV;MUSIC_WAVPACK;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE + DLL_EXPORT;_DEBUG;WIN32;_WINDOWS;MUSIC_WAV;MUSIC_WAVPACK;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE MultiThreadedDLL Level3 OldStyle @@ -173,7 +173,7 @@ /D OGG_DYNAMIC=\"libvorbisfile-3.dll\" %(AdditionalOptions) ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\src\codecs\native_midi;external\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;NDEBUG;WIN32;_WINDOWS;_CRT_SECURE_NO_WARNINGS;MUSIC_WAVPACK;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE;%(PreprocessorDefinitions) + DLL_EXPORT;NDEBUG;WIN32;_WINDOWS;_CRT_SECURE_NO_WARNINGS;MUSIC_WAVPACK;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE;%(PreprocessorDefinitions) MultiThreadedDLL Level3 StreamingSIMDExtensions @@ -200,7 +200,7 @@ /D OGG_DYNAMIC=\"libvorbisfile-3.dll\" %(AdditionalOptions) ..\include;..\src;..\src\codecs;..\src\codecs\timidity;..\src\codecs\native_midi;external\include;%(AdditionalIncludeDirectories) - DLL_EXPORT;NDEBUG;WIN32;_WINDOWS;_CRT_SECURE_NO_WARNINGS;MUSIC_WAVPACK;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_DRMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE;%(PreprocessorDefinitions) + DLL_EXPORT;NDEBUG;WIN32;_WINDOWS;_CRT_SECURE_NO_WARNINGS;MUSIC_WAVPACK;MUSIC_WAV;MUSIC_FLAC_DRFLAC;MUSIC_MOD_XMP;XMP_DYNAMIC="libxmp.dll";MUSIC_MP3_MINIMP3;MUSIC_OGG;OGG_USE_STB;MUSIC_OPUS;OPUS_DYNAMIC="libopusfile-0.dll";WAVPACK_DYNAMIC="libwavpack-1.dll";MUSIC_MID_TIMIDITY;MUSIC_MID_NATIVE;%(PreprocessorDefinitions) MultiThreadedDLL Level3 StreamingSIMDExtensions @@ -225,10 +225,10 @@ - + @@ -449,10 +449,10 @@ - + diff --git a/VisualC/SDL_mixer.vcxproj.filters b/VisualC/SDL_mixer.vcxproj.filters index c0c5a528f..10dedbce1 100644 --- a/VisualC/SDL_mixer.vcxproj.filters +++ b/VisualC/SDL_mixer.vcxproj.filters @@ -31,9 +31,6 @@ Sources - - Sources - Sources @@ -43,6 +40,9 @@ Sources + + Sources + Sources @@ -176,9 +176,6 @@ Sources - - Sources - Sources @@ -188,6 +185,9 @@ Sources + + Sources + Sources diff --git a/VisualC/pkg-support/cmake/sdl2_mixer-config.cmake b/VisualC/pkg-support/cmake/sdl2_mixer-config.cmake index c3a3f8c4e..ca5277602 100644 --- a/VisualC/pkg-support/cmake/sdl2_mixer-config.cmake +++ b/VisualC/pkg-support/cmake/sdl2_mixer-config.cmake @@ -26,7 +26,7 @@ set(SDL2MIXER_MOD_XMP FALSE) set(SDL2MIXER_MOD_XMP_LITE FALSE) set(SDL2MIXER_MP3 TRUE) -set(SDL2MIXER_MP3_DRMP3 TRUE) +set(SDL2MIXER_MP3_MINIMP3 TRUE) set(SDL2MIXER_MP3_MPG123 FALSE) set(SDL2MIXER_MIDI TRUE) diff --git a/Xcode/SDL_mixer.xcodeproj/project.pbxproj b/Xcode/SDL_mixer.xcodeproj/project.pbxproj index 485127480..4d8cbf7a5 100644 --- a/Xcode/SDL_mixer.xcodeproj/project.pbxproj +++ b/Xcode/SDL_mixer.xcodeproj/project.pbxproj @@ -58,11 +58,11 @@ F30240642881DF95002F32D6 /* music_xmp.h in Headers */ = {isa = PBXBuildFile; fileRef = F302405F2881DF94002F32D6 /* music_xmp.h */; }; F30240652881DF95002F32D6 /* music_xmp.c in Sources */ = {isa = PBXBuildFile; fileRef = F30240622881DF95002F32D6 /* music_xmp.c */; }; F30240662881DF95002F32D6 /* music_xmp.c in Sources */ = {isa = PBXBuildFile; fileRef = F30240622881DF95002F32D6 /* music_xmp.c */; }; + F307A4E52B546F710012534B /* music_minimp3.c in Sources */ = {isa = PBXBuildFile; fileRef = F307A4E32B546F710012534B /* music_minimp3.c */; }; + F307A4E62B546F710012534B /* music_minimp3.c in Sources */ = {isa = PBXBuildFile; fileRef = F307A4E32B546F710012534B /* music_minimp3.c */; }; + F307A4E72B546F710012534B /* music_minimp3.h in Headers */ = {isa = PBXBuildFile; fileRef = F307A4E42B546F710012534B /* music_minimp3.h */; }; + F307A4E82B546F710012534B /* music_minimp3.h in Headers */ = {isa = PBXBuildFile; fileRef = F307A4E42B546F710012534B /* music_minimp3.h */; }; F3249B39285C448100DB9B5C /* CMake in Resources */ = {isa = PBXBuildFile; fileRef = F3249B36285C448100DB9B5C /* CMake */; }; - F37A8D2D2838924900C38E95 /* music_drmp3.h in Headers */ = {isa = PBXBuildFile; fileRef = F37A8D2B2838924900C38E95 /* music_drmp3.h */; }; - F37A8D2E2838924900C38E95 /* music_drmp3.h in Headers */ = {isa = PBXBuildFile; fileRef = F37A8D2B2838924900C38E95 /* music_drmp3.h */; }; - F37A8D2F2838924900C38E95 /* music_drmp3.c in Sources */ = {isa = PBXBuildFile; fileRef = F37A8D2C2838924900C38E95 /* music_drmp3.c */; }; - F37A8D302838924900C38E95 /* music_drmp3.c in Sources */ = {isa = PBXBuildFile; fileRef = F37A8D2C2838924900C38E95 /* music_drmp3.c */; }; F37A8D4A2838A23400C38E95 /* music_drflac.h in Headers */ = {isa = PBXBuildFile; fileRef = F37A8D412838A23400C38E95 /* music_drflac.h */; }; F37A8D4B2838A23400C38E95 /* music_drflac.h in Headers */ = {isa = PBXBuildFile; fileRef = F37A8D412838A23400C38E95 /* music_drflac.h */; }; F37A8D502838A23400C38E95 /* music_drflac.c in Sources */ = {isa = PBXBuildFile; fileRef = F37A8D492838A23400C38E95 /* music_drflac.c */; }; @@ -202,9 +202,9 @@ F30240622881DF95002F32D6 /* music_xmp.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = music_xmp.c; sourceTree = ""; }; F307A46E2B544C0F0012534B /* gme.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = gme.xcodeproj; path = gme/gme.xcodeproj; sourceTree = ""; }; F307A4752B544C1A0012534B /* wavpack.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = wavpack.xcodeproj; path = wavpack/wavpack.xcodeproj; sourceTree = ""; }; + F307A4E32B546F710012534B /* music_minimp3.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = music_minimp3.c; sourceTree = ""; }; + F307A4E42B546F710012534B /* music_minimp3.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = music_minimp3.h; sourceTree = ""; }; F3249B36285C448100DB9B5C /* CMake */ = {isa = PBXFileReference; lastKnownFileType = folder; path = CMake; sourceTree = ""; }; - F37A8D2B2838924900C38E95 /* music_drmp3.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = music_drmp3.h; sourceTree = ""; }; - F37A8D2C2838924900C38E95 /* music_drmp3.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = music_drmp3.c; sourceTree = ""; }; F37A8D412838A23400C38E95 /* music_drflac.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = music_drflac.h; sourceTree = ""; }; F37A8D492838A23400C38E95 /* music_drflac.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = music_drflac.c; sourceTree = ""; }; F37A8DB42838AD1200C38E95 /* music_ogg_stb.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = music_ogg_stb.c; sourceTree = ""; }; @@ -311,14 +311,14 @@ AAE405DB1F9607C200EDAF53 /* music_cmd.h */, F37A8D492838A23400C38E95 /* music_drflac.c */, F37A8D412838A23400C38E95 /* music_drflac.h */, - F37A8D2C2838924900C38E95 /* music_drmp3.c */, - F37A8D2B2838924900C38E95 /* music_drmp3.h */, AAE405D41F9607C100EDAF53 /* music_flac.c */, AAE405C71F9607C000EDAF53 /* music_flac.h */, - 635731D12AD5B66A000AC38E /* music_gme.c */, - 635731D22AD5B66A000AC38E /* music_gme.h */, AAE405C61F9607C000EDAF53 /* music_fluidsynth.c */, AAE405BF1F9607BF00EDAF53 /* music_fluidsynth.h */, + 635731D12AD5B66A000AC38E /* music_gme.c */, + 635731D22AD5B66A000AC38E /* music_gme.h */, + F307A4E32B546F710012534B /* music_minimp3.c */, + F307A4E42B546F710012534B /* music_minimp3.h */, AAE405C41F9607C000EDAF53 /* music_modplug.c */, AAE405C51F9607C000EDAF53 /* music_modplug.h */, AAE405DF1F9607C300EDAF53 /* music_mpg123.c */, @@ -442,9 +442,9 @@ files = ( AAE405E31F9607C300EDAF53 /* music_fluidsynth.h in Headers */, AAE405F61F9607C300EDAF53 /* load_aiff.h in Headers */, + F307A4E72B546F710012534B /* music_minimp3.h in Headers */, AAE405E71F9607C300EDAF53 /* load_voc.h in Headers */, AAE405EC1F9607C300EDAF53 /* music_wav.h in Headers */, - F37A8D2D2838924900C38E95 /* music_drmp3.h in Headers */, AAE405E91F9607C300EDAF53 /* music_modplug.h in Headers */, AAE405FE1F9607C300EDAF53 /* music_nativemidi.h in Headers */, F37A8D4A2838A23400C38E95 /* music_drflac.h in Headers */, @@ -484,13 +484,13 @@ F3823338273195CF00F7F527 /* utils.h in Headers */, F38233562731961C00F7F527 /* music_timidity.h in Headers */, F38233542731961800F7F527 /* music_ogg.h in Headers */, + F307A4E82B546F710012534B /* music_minimp3.h in Headers */, F382335C2731962B00F7F527 /* load_voc.h in Headers */, F382335D2731962D00F7F527 /* music_opus.h in Headers */, F3823342273195E900F7F527 /* mp3utils.h in Headers */, F38233602731963800F7F527 /* native_midi.h in Headers */, F38233502731960F00F7F527 /* music_mpg123.h in Headers */, F3823344273195EE00F7F527 /* music_cmd.h in Headers */, - F37A8D2E2838924900C38E95 /* music_drmp3.h in Headers */, F38233582731962100F7F527 /* music_wav.h in Headers */, 635731D02AD5B658000AC38E /* music_wavpack.h in Headers */, 635731D62AD5B66A000AC38E /* music_gme.h in Headers */, @@ -695,7 +695,6 @@ buildActionMask = 2147483647; files = ( AAE405E21F9607C300EDAF53 /* load_aiff.c in Sources */, - F37A8D2F2838924900C38E95 /* music_drmp3.c in Sources */, AAE405F01F9607C300EDAF53 /* load_voc.c in Sources */, AAE405EA1F9607C300EDAF53 /* music_fluidsynth.c in Sources */, AAE405FD1F9607C300EDAF53 /* music_ogg.c in Sources */, @@ -714,6 +713,7 @@ F30240652881DF95002F32D6 /* music_xmp.c in Sources */, AAE405E81F9607C300EDAF53 /* music_modplug.c in Sources */, AAE405E51F9607C300EDAF53 /* mixer.c in Sources */, + F307A4E52B546F710012534B /* music_minimp3.c in Sources */, 0448E8AE108B937A00C9D3EA /* native_midi_macosx.c in Sources */, 630FBD8320D52105009867AB /* music_opus.c in Sources */, 639008C82385A822009019FA /* utils.c in Sources */, @@ -728,7 +728,6 @@ buildActionMask = 2147483647; files = ( F38233552731961A00F7F527 /* music_timidity.c in Sources */, - F37A8D302838924900C38E95 /* music_drmp3.c in Sources */, F382334F2731960C00F7F527 /* music_mpg123.c in Sources */, F382333B273195D800F7F527 /* effects_internal.c in Sources */, 0448E8AF108B937A00C9D3EA /* native_midi_macosx.c in Sources */, @@ -747,6 +746,7 @@ F30240662881DF95002F32D6 /* music_xmp.c in Sources */, F3823345273195F000F7F527 /* music_flac.c in Sources */, F38233572731961F00F7F527 /* music_wav.c in Sources */, + F307A4E62B546F710012534B /* music_minimp3.c in Sources */, F38233512731961100F7F527 /* music_nativemidi.c in Sources */, F38233532731961600F7F527 /* music_ogg.c in Sources */, F3823337273195CC00F7F527 /* utils.c in Sources */, @@ -852,7 +852,7 @@ GCC_NO_COMMON_BLOCKS = YES; GCC_PREPROCESSOR_DEFINITIONS = ( MUSIC_FLAC_DRFLAC, - MUSIC_MP3_DRMP3, + MUSIC_MP3_MINIMP3, MUSIC_OGG, OGG_USE_STB, MUSIC_WAV, @@ -902,7 +902,7 @@ GCC_OPTIMIZATION_LEVEL = 0; GCC_PREPROCESSOR_DEFINITIONS = ( MUSIC_FLAC_DRFLAC, - MUSIC_MP3_DRMP3, + MUSIC_MP3_MINIMP3, MUSIC_OGG, OGG_USE_STB, MUSIC_WAV, diff --git a/Xcode/pkg-support/resources/CMake/sdl2_mixer-config.cmake b/Xcode/pkg-support/resources/CMake/sdl2_mixer-config.cmake index 7da21f823..a7d769079 100644 --- a/Xcode/pkg-support/resources/CMake/sdl2_mixer-config.cmake +++ b/Xcode/pkg-support/resources/CMake/sdl2_mixer-config.cmake @@ -27,7 +27,7 @@ set(SDL2MIXER_MOD_XMP FALSE) set(SDL2MIXER_MOD_XMP_LITE FALSE) set(SDL2MIXER_MP3 TRUE) -set(SDL2MIXER_MP3_DRMP3 TRUE) +set(SDL2MIXER_MP3_MINIMP3 TRUE) set(SDL2MIXER_MP3_MPG123 FALSE) set(SDL2MIXER_MIDI FALSE) diff --git a/configure b/configure index 65198bf8c..234c14585 100755 --- a/configure +++ b/configure @@ -810,7 +810,7 @@ SDL2MIXER_MIDI_TIMIDITY SDL2MIXER_MIDI_NATIVE SDL2MIXER_MIDI_FLUIDSYNTH SDL2MIXER_MP3_MPG123 -SDL2MIXER_MP3_DRMP3 +SDL2MIXER_MP3_MINIMP3 SDL2MIXER_MOD_XMP_LITE SDL2MIXER_MOD_XMP SDL2MIXER_MOD_MODPLUG @@ -997,7 +997,7 @@ enable_music_flac_drflac enable_music_flac_libflac enable_music_flac_libflac_shared enable_music_mp3 -enable_music_mp3_drmp3 +enable_music_mp3_minimp3 enable_music_mp3_mpg123 enable_music_mp3_mpg123_shared enable_music_opus @@ -1715,8 +1715,8 @@ Optional Features: --enable-music-flac-libflac-shared dynamically load FLAC library [default=yes] --enable-music-mp3 enable MP3 music [default=yes] - --enable-music-mp3-drmp3 - enable MP3 music via dr_mp3 [default=yes] + --enable-music-mp3-minimp3 + enable MP3 music via minimp3 [default=yes] --enable-music-mp3-mpg123 enable MP3 music via mpg123 [default=no] --enable-music-mp3-mpg123-shared @@ -18869,19 +18869,18 @@ else $as_nop fi -SDL2MIXER_MP3_DRMP3=0 -# Check whether --enable-music-mp3-drmp3 was given. -if test ${enable_music_mp3_drmp3+y} +SDL2MIXER_MP3_MINIMP3=0 +# Check whether --enable-music-mp3-minimp3 was given. +if test ${enable_music_mp3_minimp3+y} then : - enableval=$enable_music_mp3_drmp3; + enableval=$enable_music_mp3_minimp3; else $as_nop - enable_music_mp3_drmp3=yes + enable_music_mp3_minimp3=yes fi -if test x$enable_music_mp3 = xyes -a x$enable_music_mp3_drmp3 = xyes; then - have_drmp3=yes - EXTRA_CFLAGS="$EXTRA_CFLAGS -DMUSIC_MP3_DRMP3" - SDL2MIXER_MP3_DRMP3=1 +if test x$enable_music_mp3 = xyes -a x$enable_music_mp3_minimp3 = xyes; then + EXTRA_CFLAGS="$EXTRA_CFLAGS -DMUSIC_MP3_MINIMP3" + SDL2MIXER_MP3_MINIMP3=1 fi SDL2MIXER_MP3_MPG123=0 @@ -19103,7 +19102,7 @@ printf "%s\n" "$as_me: WARNING: *** Unable to find mpg123 library (https://www.m fi fi -if test x$enable_music_mp3 = xyes -a x$have_drmp3 != xyes -a x$have_libmpg123 != xyes; then +if test x$enable_music_mp3 = xyes -a x$have_minimp3 != xyes -a x$have_libmpg123 != xyes; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: MP3 support disabled" >&5 printf "%s\n" "$as_me: WARNING: MP3 support disabled" >&2;} fi diff --git a/configure.ac b/configure.ac index 0b508a1e1..a78f99ac4 100644 --- a/configure.ac +++ b/configure.ac @@ -860,14 +860,13 @@ AC_ARG_ENABLE(music-mp3, [AS_HELP_STRING([--enable-music-mp3], [enable MP3 music [default=yes]])], [], enable_music_mp3=yes) -SDL2MIXER_MP3_DRMP3=0 -AC_ARG_ENABLE(music-mp3-drmp3, -[AS_HELP_STRING([--enable-music-mp3-drmp3], [enable MP3 music via dr_mp3 [default=yes]])], - [], [enable_music_mp3_drmp3=yes]) -if test x$enable_music_mp3 = xyes -a x$enable_music_mp3_drmp3 = xyes; then - have_drmp3=yes - EXTRA_CFLAGS="$EXTRA_CFLAGS -DMUSIC_MP3_DRMP3" - SDL2MIXER_MP3_DRMP3=1 +SDL2MIXER_MP3_MINIMP3=0 +AC_ARG_ENABLE(music-mp3-minimp3, +[AS_HELP_STRING([--enable-music-mp3-minimp3], [enable MP3 music via minimp3 [default=yes]])], + [], [enable_music_mp3_minimp3=yes]) +if test x$enable_music_mp3 = xyes -a x$enable_music_mp3_minimp3 = xyes; then + EXTRA_CFLAGS="$EXTRA_CFLAGS -DMUSIC_MP3_MINIMP3" + SDL2MIXER_MP3_MINIMP3=1 fi SDL2MIXER_MP3_MPG123=0 @@ -920,7 +919,7 @@ if test x$enable_music_mp3 = xyes -a x$enable_music_mp3_mpg123 = xyes; then fi fi -if test x$enable_music_mp3 = xyes -a x$have_drmp3 != xyes -a x$have_libmpg123 != xyes; then +if test x$enable_music_mp3 = xyes -a x$have_minimp3 != xyes -a x$have_libmpg123 != xyes; then AC_MSG_WARN([MP3 support disabled]) fi @@ -1136,7 +1135,7 @@ AC_SUBST(SDL2MIXER_GME) AC_SUBST(SDL2MIXER_MOD_MODPLUG) AC_SUBST(SDL2MIXER_MOD_XMP) AC_SUBST(SDL2MIXER_MOD_XMP_LITE) -AC_SUBST(SDL2MIXER_MP3_DRMP3) +AC_SUBST(SDL2MIXER_MP3_MINIMP3) AC_SUBST(SDL2MIXER_MP3_MPG123) AC_SUBST(SDL2MIXER_MIDI_FLUIDSYNTH) AC_SUBST(SDL2MIXER_MIDI_NATIVE) diff --git a/sdl2_mixer-config.cmake.in b/sdl2_mixer-config.cmake.in index 5dae59e3c..7e277397b 100644 --- a/sdl2_mixer-config.cmake.in +++ b/sdl2_mixer-config.cmake.in @@ -31,9 +31,9 @@ else() set(SDL2MIXER_MOD 0) endif() -set(SDL2MIXER_MP3_DRMP3 @SDL2MIXER_MP3_DRMP3@) +set(SDL2MIXER_MP3_MINIMP3 @SDL2MIXER_MP3_MINIMP3@) set(SDL2MIXER_MP3_MPG123 @SDL2MIXER_MP3_MPG123@) -if(SDL2MIXER_MP3_DRMP3 OR SDL2MIXER_MP3_MPG123) +if(SDL2MIXER_MP3_MINIMP3 OR SDL2MIXER_MP3_MPG123) set(SDL2MIXER_MP3 1) else() set(SDL2MIXER_MP3 0) diff --git a/src/codecs/dr_libs/dr_mp3.h b/src/codecs/dr_libs/dr_mp3.h deleted file mode 100644 index 84849ee4c..000000000 --- a/src/codecs/dr_libs/dr_mp3.h +++ /dev/null @@ -1,4834 +0,0 @@ -/* -MP3 audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file. -dr_mp3 - v0.6.38 - 2023-11-02 - -David Reid - mackron@gmail.com - -GitHub: https://github.com/mackron/dr_libs - -Based on minimp3 (https://github.com/lieff/minimp3) which is where the real work was done. See the bottom of this file for differences between minimp3 and dr_mp3. -*/ - -/* -RELEASE NOTES - VERSION 0.6 -=========================== -Version 0.6 includes breaking changes with the configuration of decoders. The ability to customize the number of output channels and the sample rate has been -removed. You must now use the channel count and sample rate reported by the MP3 stream itself, and all channel and sample rate conversion must be done -yourself. - - -Changes to Initialization -------------------------- -Previously, `drmp3_init()`, etc. took a pointer to a `drmp3_config` object that allowed you to customize the output channels and sample rate. This has been -removed. If you need the old behaviour you will need to convert the data yourself or just not upgrade. The following APIs have changed. - - `drmp3_init()` - `drmp3_init_memory()` - `drmp3_init_file()` - - -Miscellaneous Changes ---------------------- -Support for loading a file from a `wchar_t` string has been added via the `drmp3_init_file_w()` API. -*/ - -/* -Introducation -============= -dr_mp3 is a single file library. To use it, do something like the following in one .c file. - - ```c - #define DR_MP3_IMPLEMENTATION - #include "dr_mp3.h" - ``` - -You can then #include this file in other parts of the program as you would with any other header file. To decode audio data, do something like the following: - - ```c - drmp3 mp3; - if (!drmp3_init_file(&mp3, "MySong.mp3", NULL)) { - // Failed to open file - } - - ... - - drmp3_uint64 framesRead = drmp3_read_pcm_frames_f32(pMP3, framesToRead, pFrames); - ``` - -The drmp3 object is transparent so you can get access to the channel count and sample rate like so: - - ``` - drmp3_uint32 channels = mp3.channels; - drmp3_uint32 sampleRate = mp3.sampleRate; - ``` - -The example above initializes a decoder from a file, but you can also initialize it from a block of memory and read and seek callbacks with -`drmp3_init_memory()` and `drmp3_init()` respectively. - -You do not need to do any annoying memory management when reading PCM frames - this is all managed internally. You can request any number of PCM frames in each -call to `drmp3_read_pcm_frames_f32()` and it will return as many PCM frames as it can, up to the requested amount. - -You can also decode an entire file in one go with `drmp3_open_and_read_pcm_frames_f32()`, `drmp3_open_memory_and_read_pcm_frames_f32()` and -`drmp3_open_file_and_read_pcm_frames_f32()`. - - -Build Options -============= -#define these options before including this file. - -#define DR_MP3_NO_STDIO - Disable drmp3_init_file(), etc. - -#define DR_MP3_NO_SIMD - Disable SIMD optimizations. -*/ - -#ifndef dr_mp3_h -#define dr_mp3_h - -#ifdef __cplusplus -extern "C" { -#endif - -#define DRMP3_STRINGIFY(x) #x -#define DRMP3_XSTRINGIFY(x) DRMP3_STRINGIFY(x) - -#define DRMP3_VERSION_MAJOR 0 -#define DRMP3_VERSION_MINOR 6 -#define DRMP3_VERSION_REVISION 38 -#define DRMP3_VERSION_STRING DRMP3_XSTRINGIFY(DRMP3_VERSION_MAJOR) "." DRMP3_XSTRINGIFY(DRMP3_VERSION_MINOR) "." DRMP3_XSTRINGIFY(DRMP3_VERSION_REVISION) - -#include /* For size_t. */ - -/* Sized Types */ -typedef signed char drmp3_int8; -typedef unsigned char drmp3_uint8; -typedef signed short drmp3_int16; -typedef unsigned short drmp3_uint16; -typedef signed int drmp3_int32; -typedef unsigned int drmp3_uint32; -#if defined(_MSC_VER) && !defined(__clang__) - typedef signed __int64 drmp3_int64; - typedef unsigned __int64 drmp3_uint64; -#else - #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wlong-long" - #if defined(__clang__) - #pragma GCC diagnostic ignored "-Wc++11-long-long" - #endif - #endif - typedef signed long long drmp3_int64; - typedef unsigned long long drmp3_uint64; - #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))) - #pragma GCC diagnostic pop - #endif -#endif -#if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__)) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(_M_ARM64) || defined(__powerpc64__) - typedef drmp3_uint64 drmp3_uintptr; -#else - typedef drmp3_uint32 drmp3_uintptr; -#endif -typedef drmp3_uint8 drmp3_bool8; -typedef drmp3_uint32 drmp3_bool32; -#define DRMP3_TRUE 1 -#define DRMP3_FALSE 0 -/* End Sized Types */ - -/* Decorations */ -#if !defined(DRMP3_API) - #if defined(DRMP3_DLL) - #if defined(_WIN32) - #define DRMP3_DLL_IMPORT __declspec(dllimport) - #define DRMP3_DLL_EXPORT __declspec(dllexport) - #define DRMP3_DLL_PRIVATE static - #else - #if defined(__GNUC__) && __GNUC__ >= 4 - #define DRMP3_DLL_IMPORT __attribute__((visibility("default"))) - #define DRMP3_DLL_EXPORT __attribute__((visibility("default"))) - #define DRMP3_DLL_PRIVATE __attribute__((visibility("hidden"))) - #else - #define DRMP3_DLL_IMPORT - #define DRMP3_DLL_EXPORT - #define DRMP3_DLL_PRIVATE static - #endif - #endif - - #if defined(DR_MP3_IMPLEMENTATION) || defined(DRMP3_IMPLEMENTATION) - #define DRMP3_API DRMP3_DLL_EXPORT - #else - #define DRMP3_API DRMP3_DLL_IMPORT - #endif - #define DRMP3_PRIVATE DRMP3_DLL_PRIVATE - #else - #define DRMP3_API extern - #define DRMP3_PRIVATE static - #endif -#endif -/* End Decorations */ - -/* Result Codes */ -typedef drmp3_int32 drmp3_result; -#define DRMP3_SUCCESS 0 -#define DRMP3_ERROR -1 /* A generic error. */ -#define DRMP3_INVALID_ARGS -2 -#define DRMP3_INVALID_OPERATION -3 -#define DRMP3_OUT_OF_MEMORY -4 -#define DRMP3_OUT_OF_RANGE -5 -#define DRMP3_ACCESS_DENIED -6 -#define DRMP3_DOES_NOT_EXIST -7 -#define DRMP3_ALREADY_EXISTS -8 -#define DRMP3_TOO_MANY_OPEN_FILES -9 -#define DRMP3_INVALID_FILE -10 -#define DRMP3_TOO_BIG -11 -#define DRMP3_PATH_TOO_LONG -12 -#define DRMP3_NAME_TOO_LONG -13 -#define DRMP3_NOT_DIRECTORY -14 -#define DRMP3_IS_DIRECTORY -15 -#define DRMP3_DIRECTORY_NOT_EMPTY -16 -#define DRMP3_END_OF_FILE -17 -#define DRMP3_NO_SPACE -18 -#define DRMP3_BUSY -19 -#define DRMP3_IO_ERROR -20 -#define DRMP3_INTERRUPT -21 -#define DRMP3_UNAVAILABLE -22 -#define DRMP3_ALREADY_IN_USE -23 -#define DRMP3_BAD_ADDRESS -24 -#define DRMP3_BAD_SEEK -25 -#define DRMP3_BAD_PIPE -26 -#define DRMP3_DEADLOCK -27 -#define DRMP3_TOO_MANY_LINKS -28 -#define DRMP3_NOT_IMPLEMENTED -29 -#define DRMP3_NO_MESSAGE -30 -#define DRMP3_BAD_MESSAGE -31 -#define DRMP3_NO_DATA_AVAILABLE -32 -#define DRMP3_INVALID_DATA -33 -#define DRMP3_TIMEOUT -34 -#define DRMP3_NO_NETWORK -35 -#define DRMP3_NOT_UNIQUE -36 -#define DRMP3_NOT_SOCKET -37 -#define DRMP3_NO_ADDRESS -38 -#define DRMP3_BAD_PROTOCOL -39 -#define DRMP3_PROTOCOL_UNAVAILABLE -40 -#define DRMP3_PROTOCOL_NOT_SUPPORTED -41 -#define DRMP3_PROTOCOL_FAMILY_NOT_SUPPORTED -42 -#define DRMP3_ADDRESS_FAMILY_NOT_SUPPORTED -43 -#define DRMP3_SOCKET_NOT_SUPPORTED -44 -#define DRMP3_CONNECTION_RESET -45 -#define DRMP3_ALREADY_CONNECTED -46 -#define DRMP3_NOT_CONNECTED -47 -#define DRMP3_CONNECTION_REFUSED -48 -#define DRMP3_NO_HOST -49 -#define DRMP3_IN_PROGRESS -50 -#define DRMP3_CANCELLED -51 -#define DRMP3_MEMORY_ALREADY_MAPPED -52 -#define DRMP3_AT_END -53 -/* End Result Codes */ - -#define DRMP3_MAX_PCM_FRAMES_PER_MP3_FRAME 1152 -#define DRMP3_MAX_SAMPLES_PER_FRAME (DRMP3_MAX_PCM_FRAMES_PER_MP3_FRAME*2) - -/* Inline */ -#ifdef _MSC_VER - #define DRMP3_INLINE __forceinline -#elif defined(__GNUC__) - /* - I've had a bug report where GCC is emitting warnings about functions possibly not being inlineable. This warning happens when - the __attribute__((always_inline)) attribute is defined without an "inline" statement. I think therefore there must be some - case where "__inline__" is not always defined, thus the compiler emitting these warnings. When using -std=c89 or -ansi on the - command line, we cannot use the "inline" keyword and instead need to use "__inline__". In an attempt to work around this issue - I am using "__inline__" only when we're compiling in strict ANSI mode. - */ - #if defined(__STRICT_ANSI__) - #define DRMP3_GNUC_INLINE_HINT __inline__ - #else - #define DRMP3_GNUC_INLINE_HINT inline - #endif - - #if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)) || defined(__clang__) - #define DRMP3_INLINE DRMP3_GNUC_INLINE_HINT __attribute__((always_inline)) - #else - #define DRMP3_INLINE DRMP3_GNUC_INLINE_HINT - #endif -#elif defined(__WATCOMC__) - #define DRMP3_INLINE __inline -#else - #define DRMP3_INLINE -#endif -/* End Inline */ - - -DRMP3_API void drmp3_version(drmp3_uint32* pMajor, drmp3_uint32* pMinor, drmp3_uint32* pRevision); -DRMP3_API const char* drmp3_version_string(void); - - -/* Allocation Callbacks */ -typedef struct -{ - void* pUserData; - void* (* onMalloc)(size_t sz, void* pUserData); - void* (* onRealloc)(void* p, size_t sz, void* pUserData); - void (* onFree)(void* p, void* pUserData); -} drmp3_allocation_callbacks; -/* End Allocation Callbacks */ - - -/* -Low Level Push API -================== -*/ -typedef struct -{ - int frame_bytes, channels, hz, layer, bitrate_kbps; -} drmp3dec_frame_info; - -typedef struct -{ - float mdct_overlap[2][9*32], qmf_state[15*2*32]; - int reserv, free_format_bytes; - drmp3_uint8 header[4], reserv_buf[511]; -} drmp3dec; - -/* Initializes a low level decoder. */ -DRMP3_API void drmp3dec_init(drmp3dec *dec); - -/* Reads a frame from a low level decoder. */ -DRMP3_API int drmp3dec_decode_frame(drmp3dec *dec, const drmp3_uint8 *mp3, int mp3_bytes, void *pcm, drmp3dec_frame_info *info); - -/* Helper for converting between f32 and s16. */ -DRMP3_API void drmp3dec_f32_to_s16(const float *in, drmp3_int16 *out, size_t num_samples); - - - -/* -Main API (Pull API) -=================== -*/ -typedef enum -{ - drmp3_seek_origin_start, - drmp3_seek_origin_current -} drmp3_seek_origin; - -typedef struct -{ - drmp3_uint64 seekPosInBytes; /* Points to the first byte of an MP3 frame. */ - drmp3_uint64 pcmFrameIndex; /* The index of the PCM frame this seek point targets. */ - drmp3_uint16 mp3FramesToDiscard; /* The number of whole MP3 frames to be discarded before pcmFramesToDiscard. */ - drmp3_uint16 pcmFramesToDiscard; /* The number of leading samples to read and discard. These are discarded after mp3FramesToDiscard. */ -} drmp3_seek_point; - -/* -Callback for when data is read. Return value is the number of bytes actually read. - -pUserData [in] The user data that was passed to drmp3_init(), drmp3_open() and family. -pBufferOut [out] The output buffer. -bytesToRead [in] The number of bytes to read. - -Returns the number of bytes actually read. - -A return value of less than bytesToRead indicates the end of the stream. Do _not_ return from this callback until -either the entire bytesToRead is filled or you have reached the end of the stream. -*/ -typedef size_t (* drmp3_read_proc)(void* pUserData, void* pBufferOut, size_t bytesToRead); - -/* -Callback for when data needs to be seeked. - -pUserData [in] The user data that was passed to drmp3_init(), drmp3_open() and family. -offset [in] The number of bytes to move, relative to the origin. Will never be negative. -origin [in] The origin of the seek - the current position or the start of the stream. - -Returns whether or not the seek was successful. - -Whether or not it is relative to the beginning or current position is determined by the "origin" parameter which -will be either drmp3_seek_origin_start or drmp3_seek_origin_current. -*/ -typedef drmp3_bool32 (* drmp3_seek_proc)(void* pUserData, int offset, drmp3_seek_origin origin); - -typedef struct -{ - drmp3_uint32 channels; - drmp3_uint32 sampleRate; -} drmp3_config; - -typedef struct -{ - drmp3dec decoder; - drmp3_uint32 channels; - drmp3_uint32 sampleRate; - drmp3_read_proc onRead; - drmp3_seek_proc onSeek; - void* pUserData; - drmp3_allocation_callbacks allocationCallbacks; - drmp3_uint32 mp3FrameChannels; /* The number of channels in the currently loaded MP3 frame. Internal use only. */ - drmp3_uint32 mp3FrameSampleRate; /* The sample rate of the currently loaded MP3 frame. Internal use only. */ - drmp3_uint32 pcmFramesConsumedInMP3Frame; - drmp3_uint32 pcmFramesRemainingInMP3Frame; - drmp3_uint8 pcmFrames[sizeof(float)*DRMP3_MAX_SAMPLES_PER_FRAME]; /* <-- Multipled by sizeof(float) to ensure there's enough room for DR_MP3_FLOAT_OUTPUT. */ - drmp3_uint64 currentPCMFrame; /* The current PCM frame, globally, based on the output sample rate. Mainly used for seeking. */ - drmp3_uint64 streamCursor; /* The current byte the decoder is sitting on in the raw stream. */ - drmp3_seek_point* pSeekPoints; /* NULL by default. Set with drmp3_bind_seek_table(). Memory is owned by the client. dr_mp3 will never attempt to free this pointer. */ - drmp3_uint32 seekPointCount; /* The number of items in pSeekPoints. When set to 0 assumes to no seek table. Defaults to zero. */ - size_t dataSize; - size_t dataCapacity; - size_t dataConsumed; - drmp3_uint8* pData; - drmp3_bool32 atEnd : 1; - struct - { - const drmp3_uint8* pData; - size_t dataSize; - size_t currentReadPos; - } memory; /* Only used for decoders that were opened against a block of memory. */ -} drmp3; - -/* -Initializes an MP3 decoder. - -onRead [in] The function to call when data needs to be read from the client. -onSeek [in] The function to call when the read position of the client data needs to move. -pUserData [in, optional] A pointer to application defined data that will be passed to onRead and onSeek. - -Returns true if successful; false otherwise. - -Close the loader with drmp3_uninit(). - -See also: drmp3_init_file(), drmp3_init_memory(), drmp3_uninit() -*/ -DRMP3_API drmp3_bool32 drmp3_init(drmp3* pMP3, drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, const drmp3_allocation_callbacks* pAllocationCallbacks); - -/* -Initializes an MP3 decoder from a block of memory. - -This does not create a copy of the data. It is up to the application to ensure the buffer remains valid for -the lifetime of the drmp3 object. - -The buffer should contain the contents of the entire MP3 file. -*/ -DRMP3_API drmp3_bool32 drmp3_init_memory(drmp3* pMP3, const void* pData, size_t dataSize, const drmp3_allocation_callbacks* pAllocationCallbacks); - -#ifndef DR_MP3_NO_STDIO -/* -Initializes an MP3 decoder from a file. - -This holds the internal FILE object until drmp3_uninit() is called. Keep this in mind if you're caching drmp3 -objects because the operating system may restrict the number of file handles an application can have open at -any given time. -*/ -DRMP3_API drmp3_bool32 drmp3_init_file(drmp3* pMP3, const char* pFilePath, const drmp3_allocation_callbacks* pAllocationCallbacks); -DRMP3_API drmp3_bool32 drmp3_init_file_w(drmp3* pMP3, const wchar_t* pFilePath, const drmp3_allocation_callbacks* pAllocationCallbacks); -#endif - -/* -Uninitializes an MP3 decoder. -*/ -DRMP3_API void drmp3_uninit(drmp3* pMP3); - -/* -Reads PCM frames as interleaved 32-bit IEEE floating point PCM. - -Note that framesToRead specifies the number of PCM frames to read, _not_ the number of MP3 frames. -*/ -DRMP3_API drmp3_uint64 drmp3_read_pcm_frames_f32(drmp3* pMP3, drmp3_uint64 framesToRead, float* pBufferOut); - -/* -Reads PCM frames as interleaved signed 16-bit integer PCM. - -Note that framesToRead specifies the number of PCM frames to read, _not_ the number of MP3 frames. -*/ -DRMP3_API drmp3_uint64 drmp3_read_pcm_frames_s16(drmp3* pMP3, drmp3_uint64 framesToRead, drmp3_int16* pBufferOut); - -/* -Seeks to a specific frame. - -Note that this is _not_ an MP3 frame, but rather a PCM frame. -*/ -DRMP3_API drmp3_bool32 drmp3_seek_to_pcm_frame(drmp3* pMP3, drmp3_uint64 frameIndex); - -/* -Calculates the total number of PCM frames in the MP3 stream. Cannot be used for infinite streams such as internet -radio. Runs in linear time. Returns 0 on error. -*/ -DRMP3_API drmp3_uint64 drmp3_get_pcm_frame_count(drmp3* pMP3); - -/* -Calculates the total number of MP3 frames in the MP3 stream. Cannot be used for infinite streams such as internet -radio. Runs in linear time. Returns 0 on error. -*/ -DRMP3_API drmp3_uint64 drmp3_get_mp3_frame_count(drmp3* pMP3); - -/* -Calculates the total number of MP3 and PCM frames in the MP3 stream. Cannot be used for infinite streams such as internet -radio. Runs in linear time. Returns 0 on error. - -This is equivalent to calling drmp3_get_mp3_frame_count() and drmp3_get_pcm_frame_count() except that it's more efficient. -*/ -DRMP3_API drmp3_bool32 drmp3_get_mp3_and_pcm_frame_count(drmp3* pMP3, drmp3_uint64* pMP3FrameCount, drmp3_uint64* pPCMFrameCount); - -/* -Calculates the seekpoints based on PCM frames. This is slow. - -pSeekpoint count is a pointer to a uint32 containing the seekpoint count. On input it contains the desired count. -On output it contains the actual count. The reason for this design is that the client may request too many -seekpoints, in which case dr_mp3 will return a corrected count. - -Note that seektable seeking is not quite sample exact when the MP3 stream contains inconsistent sample rates. -*/ -DRMP3_API drmp3_bool32 drmp3_calculate_seek_points(drmp3* pMP3, drmp3_uint32* pSeekPointCount, drmp3_seek_point* pSeekPoints); - -/* -Binds a seek table to the decoder. - -This does _not_ make a copy of pSeekPoints - it only references it. It is up to the application to ensure this -remains valid while it is bound to the decoder. - -Use drmp3_calculate_seek_points() to calculate the seek points. -*/ -DRMP3_API drmp3_bool32 drmp3_bind_seek_table(drmp3* pMP3, drmp3_uint32 seekPointCount, drmp3_seek_point* pSeekPoints); - - -/* -Opens an decodes an entire MP3 stream as a single operation. - -On output pConfig will receive the channel count and sample rate of the stream. - -Free the returned pointer with drmp3_free(). -*/ -DRMP3_API float* drmp3_open_and_read_pcm_frames_f32(drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); -DRMP3_API drmp3_int16* drmp3_open_and_read_pcm_frames_s16(drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); - -DRMP3_API float* drmp3_open_memory_and_read_pcm_frames_f32(const void* pData, size_t dataSize, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); -DRMP3_API drmp3_int16* drmp3_open_memory_and_read_pcm_frames_s16(const void* pData, size_t dataSize, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); - -#ifndef DR_MP3_NO_STDIO -DRMP3_API float* drmp3_open_file_and_read_pcm_frames_f32(const char* filePath, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); -DRMP3_API drmp3_int16* drmp3_open_file_and_read_pcm_frames_s16(const char* filePath, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks); -#endif - -/* -Allocates a block of memory on the heap. -*/ -DRMP3_API void* drmp3_malloc(size_t sz, const drmp3_allocation_callbacks* pAllocationCallbacks); - -/* -Frees any memory that was allocated by a public drmp3 API. -*/ -DRMP3_API void drmp3_free(void* p, const drmp3_allocation_callbacks* pAllocationCallbacks); - -#ifdef __cplusplus -} -#endif -#endif /* dr_mp3_h */ - - -/************************************************************************************************************************************************************ - ************************************************************************************************************************************************************ - - IMPLEMENTATION - - ************************************************************************************************************************************************************ - ************************************************************************************************************************************************************/ -#if defined(DR_MP3_IMPLEMENTATION) || defined(DRMP3_IMPLEMENTATION) -#ifndef dr_mp3_c -#define dr_mp3_c - -#include -#include -#include /* For INT_MAX */ - -DRMP3_API void drmp3_version(drmp3_uint32* pMajor, drmp3_uint32* pMinor, drmp3_uint32* pRevision) -{ - if (pMajor) { - *pMajor = DRMP3_VERSION_MAJOR; - } - - if (pMinor) { - *pMinor = DRMP3_VERSION_MINOR; - } - - if (pRevision) { - *pRevision = DRMP3_VERSION_REVISION; - } -} - -DRMP3_API const char* drmp3_version_string(void) -{ - return DRMP3_VERSION_STRING; -} - -/* Disable SIMD when compiling with TCC for now. */ -#if defined(__TINYC__) -#define DR_MP3_NO_SIMD -#endif - -#define DRMP3_OFFSET_PTR(p, offset) ((void*)((drmp3_uint8*)(p) + (offset))) - -#define DRMP3_MAX_FREE_FORMAT_FRAME_SIZE 2304 /* more than ISO spec's */ -#ifndef DRMP3_MAX_FRAME_SYNC_MATCHES -#define DRMP3_MAX_FRAME_SYNC_MATCHES 10 -#endif - -#define DRMP3_MAX_L3_FRAME_PAYLOAD_BYTES DRMP3_MAX_FREE_FORMAT_FRAME_SIZE /* MUST be >= 320000/8/32000*1152 = 1440 */ - -#define DRMP3_MAX_BITRESERVOIR_BYTES 511 -#define DRMP3_SHORT_BLOCK_TYPE 2 -#define DRMP3_STOP_BLOCK_TYPE 3 -#define DRMP3_MODE_MONO 3 -#define DRMP3_MODE_JOINT_STEREO 1 -#define DRMP3_HDR_SIZE 4 -#define DRMP3_HDR_IS_MONO(h) (((h[3]) & 0xC0) == 0xC0) -#define DRMP3_HDR_IS_MS_STEREO(h) (((h[3]) & 0xE0) == 0x60) -#define DRMP3_HDR_IS_FREE_FORMAT(h) (((h[2]) & 0xF0) == 0) -#define DRMP3_HDR_IS_CRC(h) (!((h[1]) & 1)) -#define DRMP3_HDR_TEST_PADDING(h) ((h[2]) & 0x2) -#define DRMP3_HDR_TEST_MPEG1(h) ((h[1]) & 0x8) -#define DRMP3_HDR_TEST_NOT_MPEG25(h) ((h[1]) & 0x10) -#define DRMP3_HDR_TEST_I_STEREO(h) ((h[3]) & 0x10) -#define DRMP3_HDR_TEST_MS_STEREO(h) ((h[3]) & 0x20) -#define DRMP3_HDR_GET_STEREO_MODE(h) (((h[3]) >> 6) & 3) -#define DRMP3_HDR_GET_STEREO_MODE_EXT(h) (((h[3]) >> 4) & 3) -#define DRMP3_HDR_GET_LAYER(h) (((h[1]) >> 1) & 3) -#define DRMP3_HDR_GET_BITRATE(h) ((h[2]) >> 4) -#define DRMP3_HDR_GET_SAMPLE_RATE(h) (((h[2]) >> 2) & 3) -#define DRMP3_HDR_GET_MY_SAMPLE_RATE(h) (DRMP3_HDR_GET_SAMPLE_RATE(h) + (((h[1] >> 3) & 1) + ((h[1] >> 4) & 1))*3) -#define DRMP3_HDR_IS_FRAME_576(h) ((h[1] & 14) == 2) -#define DRMP3_HDR_IS_LAYER_1(h) ((h[1] & 6) == 6) - -#define DRMP3_BITS_DEQUANTIZER_OUT -1 -#define DRMP3_MAX_SCF (255 + DRMP3_BITS_DEQUANTIZER_OUT*4 - 210) -#define DRMP3_MAX_SCFI ((DRMP3_MAX_SCF + 3) & ~3) - -#define DRMP3_MIN(a, b) ((a) > (b) ? (b) : (a)) -#define DRMP3_MAX(a, b) ((a) < (b) ? (b) : (a)) - -#if !defined(DR_MP3_NO_SIMD) - -#if !defined(DR_MP3_ONLY_SIMD) && (defined(_M_X64) || defined(__x86_64__) || defined(__aarch64__) || defined(_M_ARM64)) -/* x64 always have SSE2, arm64 always have neon, no need for generic code */ -#define DR_MP3_ONLY_SIMD -#endif - -#if ((defined(_MSC_VER) && _MSC_VER >= 1400) && defined(_M_X64)) || ((defined(__i386) || defined(_M_IX86) || defined(__i386__) || defined(__x86_64__)) && ((defined(_M_IX86_FP) && _M_IX86_FP == 2) || defined(__SSE2__))) -#if defined(_MSC_VER) -#include -#endif -#include -#define DRMP3_HAVE_SSE 1 -#define DRMP3_HAVE_SIMD 1 -#define DRMP3_VSTORE _mm_storeu_ps -#define DRMP3_VLD _mm_loadu_ps -#define DRMP3_VSET _mm_set1_ps -#define DRMP3_VADD _mm_add_ps -#define DRMP3_VSUB _mm_sub_ps -#define DRMP3_VMUL _mm_mul_ps -#define DRMP3_VMAC(a, x, y) _mm_add_ps(a, _mm_mul_ps(x, y)) -#define DRMP3_VMSB(a, x, y) _mm_sub_ps(a, _mm_mul_ps(x, y)) -#define DRMP3_VMUL_S(x, s) _mm_mul_ps(x, _mm_set1_ps(s)) -#define DRMP3_VREV(x) _mm_shuffle_ps(x, x, _MM_SHUFFLE(0, 1, 2, 3)) -typedef __m128 drmp3_f4; -#if defined(_MSC_VER) || defined(DR_MP3_ONLY_SIMD) -#define drmp3_cpuid __cpuid -#else -static __inline__ __attribute__((always_inline)) void drmp3_cpuid(int CPUInfo[], const int InfoType) -{ -#if defined(__PIC__) - __asm__ __volatile__( -#if defined(__x86_64__) - "push %%rbx\n" - "cpuid\n" - "xchgl %%ebx, %1\n" - "pop %%rbx\n" -#else - "xchgl %%ebx, %1\n" - "cpuid\n" - "xchgl %%ebx, %1\n" -#endif - : "=a" (CPUInfo[0]), "=r" (CPUInfo[1]), "=c" (CPUInfo[2]), "=d" (CPUInfo[3]) - : "a" (InfoType)); -#else - __asm__ __volatile__( - "cpuid" - : "=a" (CPUInfo[0]), "=b" (CPUInfo[1]), "=c" (CPUInfo[2]), "=d" (CPUInfo[3]) - : "a" (InfoType)); -#endif -} -#endif -static int drmp3_have_simd(void) -{ -#ifdef DR_MP3_ONLY_SIMD - return 1; -#else - static int g_have_simd; - int CPUInfo[4]; -#ifdef MINIMP3_TEST - static int g_counter; - if (g_counter++ > 100) - return 0; -#endif - if (g_have_simd) - goto end; - drmp3_cpuid(CPUInfo, 0); - if (CPUInfo[0] > 0) - { - drmp3_cpuid(CPUInfo, 1); - g_have_simd = (CPUInfo[3] & (1 << 26)) + 1; /* SSE2 */ - return g_have_simd - 1; - } - -end: - return g_have_simd - 1; -#endif -} -#elif defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM64) -#include -#define DRMP3_HAVE_SSE 0 -#define DRMP3_HAVE_SIMD 1 -#define DRMP3_VSTORE vst1q_f32 -#define DRMP3_VLD vld1q_f32 -#define DRMP3_VSET vmovq_n_f32 -#define DRMP3_VADD vaddq_f32 -#define DRMP3_VSUB vsubq_f32 -#define DRMP3_VMUL vmulq_f32 -#define DRMP3_VMAC(a, x, y) vmlaq_f32(a, x, y) -#define DRMP3_VMSB(a, x, y) vmlsq_f32(a, x, y) -#define DRMP3_VMUL_S(x, s) vmulq_f32(x, vmovq_n_f32(s)) -#define DRMP3_VREV(x) vcombine_f32(vget_high_f32(vrev64q_f32(x)), vget_low_f32(vrev64q_f32(x))) -typedef float32x4_t drmp3_f4; -static int drmp3_have_simd(void) -{ /* TODO: detect neon for !DR_MP3_ONLY_SIMD */ - return 1; -} -#else -#define DRMP3_HAVE_SSE 0 -#define DRMP3_HAVE_SIMD 0 -#ifdef DR_MP3_ONLY_SIMD -#error DR_MP3_ONLY_SIMD used, but SSE/NEON not enabled -#endif -#endif - -#else - -#define DRMP3_HAVE_SIMD 0 - -#endif - -#if defined(__ARM_ARCH) && (__ARM_ARCH >= 6) && !defined(__aarch64__) && !defined(_M_ARM64) && !defined(__ARM_ARCH_6M__) -#define DRMP3_HAVE_ARMV6 1 -static __inline__ __attribute__((always_inline)) drmp3_int32 drmp3_clip_int16_arm(drmp3_int32 a) -{ - drmp3_int32 x = 0; - __asm__ ("ssat %0, #16, %1" : "=r"(x) : "r"(a)); - return x; -} -#else -#define DRMP3_HAVE_ARMV6 0 -#endif - - -/* Standard library stuff. */ -#ifndef DRMP3_ASSERT -#include -#define DRMP3_ASSERT(expression) assert(expression) -#endif -#ifndef DRMP3_COPY_MEMORY -#define DRMP3_COPY_MEMORY(dst, src, sz) memcpy((dst), (src), (sz)) -#endif -#ifndef DRMP3_MOVE_MEMORY -#define DRMP3_MOVE_MEMORY(dst, src, sz) memmove((dst), (src), (sz)) -#endif -#ifndef DRMP3_ZERO_MEMORY -#define DRMP3_ZERO_MEMORY(p, sz) memset((p), 0, (sz)) -#endif -#define DRMP3_ZERO_OBJECT(p) DRMP3_ZERO_MEMORY((p), sizeof(*(p))) -#ifndef DRMP3_MALLOC -#define DRMP3_MALLOC(sz) malloc((sz)) -#endif -#ifndef DRMP3_REALLOC -#define DRMP3_REALLOC(p, sz) realloc((p), (sz)) -#endif -#ifndef DRMP3_FREE -#define DRMP3_FREE(p) free((p)) -#endif - -typedef struct -{ - const drmp3_uint8 *buf; - int pos, limit; -} drmp3_bs; - -typedef struct -{ - float scf[3*64]; - drmp3_uint8 total_bands, stereo_bands, bitalloc[64], scfcod[64]; -} drmp3_L12_scale_info; - -typedef struct -{ - drmp3_uint8 tab_offset, code_tab_width, band_count; -} drmp3_L12_subband_alloc; - -typedef struct -{ - const drmp3_uint8 *sfbtab; - drmp3_uint16 part_23_length, big_values, scalefac_compress; - drmp3_uint8 global_gain, block_type, mixed_block_flag, n_long_sfb, n_short_sfb; - drmp3_uint8 table_select[3], region_count[3], subblock_gain[3]; - drmp3_uint8 preflag, scalefac_scale, count1_table, scfsi; -} drmp3_L3_gr_info; - -typedef struct -{ - drmp3_bs bs; - drmp3_uint8 maindata[DRMP3_MAX_BITRESERVOIR_BYTES + DRMP3_MAX_L3_FRAME_PAYLOAD_BYTES]; - drmp3_L3_gr_info gr_info[4]; - float grbuf[2][576], scf[40], syn[18 + 15][2*32]; - drmp3_uint8 ist_pos[2][39]; -} drmp3dec_scratch; - -static void drmp3_bs_init(drmp3_bs *bs, const drmp3_uint8 *data, int bytes) -{ - bs->buf = data; - bs->pos = 0; - bs->limit = bytes*8; -} - -static drmp3_uint32 drmp3_bs_get_bits(drmp3_bs *bs, int n) -{ - drmp3_uint32 next, cache = 0, s = bs->pos & 7; - int shl = n + s; - const drmp3_uint8 *p = bs->buf + (bs->pos >> 3); - if ((bs->pos += n) > bs->limit) - return 0; - next = *p++ & (255 >> s); - while ((shl -= 8) > 0) - { - cache |= next << shl; - next = *p++; - } - return cache | (next >> -shl); -} - -static int drmp3_hdr_valid(const drmp3_uint8 *h) -{ - return h[0] == 0xff && - ((h[1] & 0xF0) == 0xf0 || (h[1] & 0xFE) == 0xe2) && - (DRMP3_HDR_GET_LAYER(h) != 0) && - (DRMP3_HDR_GET_BITRATE(h) != 15) && - (DRMP3_HDR_GET_SAMPLE_RATE(h) != 3); -} - -static int drmp3_hdr_compare(const drmp3_uint8 *h1, const drmp3_uint8 *h2) -{ - return drmp3_hdr_valid(h2) && - ((h1[1] ^ h2[1]) & 0xFE) == 0 && - ((h1[2] ^ h2[2]) & 0x0C) == 0 && - !(DRMP3_HDR_IS_FREE_FORMAT(h1) ^ DRMP3_HDR_IS_FREE_FORMAT(h2)); -} - -static unsigned drmp3_hdr_bitrate_kbps(const drmp3_uint8 *h) -{ - static const drmp3_uint8 halfrate[2][3][15] = { - { { 0,4,8,12,16,20,24,28,32,40,48,56,64,72,80 }, { 0,4,8,12,16,20,24,28,32,40,48,56,64,72,80 }, { 0,16,24,28,32,40,48,56,64,72,80,88,96,112,128 } }, - { { 0,16,20,24,28,32,40,48,56,64,80,96,112,128,160 }, { 0,16,24,28,32,40,48,56,64,80,96,112,128,160,192 }, { 0,16,32,48,64,80,96,112,128,144,160,176,192,208,224 } }, - }; - return 2*halfrate[!!DRMP3_HDR_TEST_MPEG1(h)][DRMP3_HDR_GET_LAYER(h) - 1][DRMP3_HDR_GET_BITRATE(h)]; -} - -static unsigned drmp3_hdr_sample_rate_hz(const drmp3_uint8 *h) -{ - static const unsigned g_hz[3] = { 44100, 48000, 32000 }; - return g_hz[DRMP3_HDR_GET_SAMPLE_RATE(h)] >> (int)!DRMP3_HDR_TEST_MPEG1(h) >> (int)!DRMP3_HDR_TEST_NOT_MPEG25(h); -} - -static unsigned drmp3_hdr_frame_samples(const drmp3_uint8 *h) -{ - return DRMP3_HDR_IS_LAYER_1(h) ? 384 : (1152 >> (int)DRMP3_HDR_IS_FRAME_576(h)); -} - -static int drmp3_hdr_frame_bytes(const drmp3_uint8 *h, int free_format_size) -{ - int frame_bytes = drmp3_hdr_frame_samples(h)*drmp3_hdr_bitrate_kbps(h)*125/drmp3_hdr_sample_rate_hz(h); - if (DRMP3_HDR_IS_LAYER_1(h)) - { - frame_bytes &= ~3; /* slot align */ - } - return frame_bytes ? frame_bytes : free_format_size; -} - -static int drmp3_hdr_padding(const drmp3_uint8 *h) -{ - return DRMP3_HDR_TEST_PADDING(h) ? (DRMP3_HDR_IS_LAYER_1(h) ? 4 : 1) : 0; -} - -#ifndef DR_MP3_ONLY_MP3 -static const drmp3_L12_subband_alloc *drmp3_L12_subband_alloc_table(const drmp3_uint8 *hdr, drmp3_L12_scale_info *sci) -{ - const drmp3_L12_subband_alloc *alloc; - int mode = DRMP3_HDR_GET_STEREO_MODE(hdr); - int nbands, stereo_bands = (mode == DRMP3_MODE_MONO) ? 0 : (mode == DRMP3_MODE_JOINT_STEREO) ? (DRMP3_HDR_GET_STEREO_MODE_EXT(hdr) << 2) + 4 : 32; - - if (DRMP3_HDR_IS_LAYER_1(hdr)) - { - static const drmp3_L12_subband_alloc g_alloc_L1[] = { { 76, 4, 32 } }; - alloc = g_alloc_L1; - nbands = 32; - } else if (!DRMP3_HDR_TEST_MPEG1(hdr)) - { - static const drmp3_L12_subband_alloc g_alloc_L2M2[] = { { 60, 4, 4 }, { 44, 3, 7 }, { 44, 2, 19 } }; - alloc = g_alloc_L2M2; - nbands = 30; - } else - { - static const drmp3_L12_subband_alloc g_alloc_L2M1[] = { { 0, 4, 3 }, { 16, 4, 8 }, { 32, 3, 12 }, { 40, 2, 7 } }; - int sample_rate_idx = DRMP3_HDR_GET_SAMPLE_RATE(hdr); - unsigned kbps = drmp3_hdr_bitrate_kbps(hdr) >> (int)(mode != DRMP3_MODE_MONO); - if (!kbps) /* free-format */ - { - kbps = 192; - } - - alloc = g_alloc_L2M1; - nbands = 27; - if (kbps < 56) - { - static const drmp3_L12_subband_alloc g_alloc_L2M1_lowrate[] = { { 44, 4, 2 }, { 44, 3, 10 } }; - alloc = g_alloc_L2M1_lowrate; - nbands = sample_rate_idx == 2 ? 12 : 8; - } else if (kbps >= 96 && sample_rate_idx != 1) - { - nbands = 30; - } - } - - sci->total_bands = (drmp3_uint8)nbands; - sci->stereo_bands = (drmp3_uint8)DRMP3_MIN(stereo_bands, nbands); - - return alloc; -} - -static void drmp3_L12_read_scalefactors(drmp3_bs *bs, drmp3_uint8 *pba, drmp3_uint8 *scfcod, int bands, float *scf) -{ - static const float g_deq_L12[18*3] = { -#define DRMP3_DQ(x) 9.53674316e-07f/x, 7.56931807e-07f/x, 6.00777173e-07f/x - DRMP3_DQ(3),DRMP3_DQ(7),DRMP3_DQ(15),DRMP3_DQ(31),DRMP3_DQ(63),DRMP3_DQ(127),DRMP3_DQ(255),DRMP3_DQ(511),DRMP3_DQ(1023),DRMP3_DQ(2047),DRMP3_DQ(4095),DRMP3_DQ(8191),DRMP3_DQ(16383),DRMP3_DQ(32767),DRMP3_DQ(65535),DRMP3_DQ(3),DRMP3_DQ(5),DRMP3_DQ(9) - }; - int i, m; - for (i = 0; i < bands; i++) - { - float s = 0; - int ba = *pba++; - int mask = ba ? 4 + ((19 >> scfcod[i]) & 3) : 0; - for (m = 4; m; m >>= 1) - { - if (mask & m) - { - int b = drmp3_bs_get_bits(bs, 6); - s = g_deq_L12[ba*3 - 6 + b % 3]*(int)(1 << 21 >> b/3); - } - *scf++ = s; - } - } -} - -static void drmp3_L12_read_scale_info(const drmp3_uint8 *hdr, drmp3_bs *bs, drmp3_L12_scale_info *sci) -{ - static const drmp3_uint8 g_bitalloc_code_tab[] = { - 0,17, 3, 4, 5,6,7, 8,9,10,11,12,13,14,15,16, - 0,17,18, 3,19,4,5, 6,7, 8, 9,10,11,12,13,16, - 0,17,18, 3,19,4,5,16, - 0,17,18,16, - 0,17,18,19, 4,5,6, 7,8, 9,10,11,12,13,14,15, - 0,17,18, 3,19,4,5, 6,7, 8, 9,10,11,12,13,14, - 0, 2, 3, 4, 5,6,7, 8,9,10,11,12,13,14,15,16 - }; - const drmp3_L12_subband_alloc *subband_alloc = drmp3_L12_subband_alloc_table(hdr, sci); - - int i, k = 0, ba_bits = 0; - const drmp3_uint8 *ba_code_tab = g_bitalloc_code_tab; - - for (i = 0; i < sci->total_bands; i++) - { - drmp3_uint8 ba; - if (i == k) - { - k += subband_alloc->band_count; - ba_bits = subband_alloc->code_tab_width; - ba_code_tab = g_bitalloc_code_tab + subband_alloc->tab_offset; - subband_alloc++; - } - ba = ba_code_tab[drmp3_bs_get_bits(bs, ba_bits)]; - sci->bitalloc[2*i] = ba; - if (i < sci->stereo_bands) - { - ba = ba_code_tab[drmp3_bs_get_bits(bs, ba_bits)]; - } - sci->bitalloc[2*i + 1] = sci->stereo_bands ? ba : 0; - } - - for (i = 0; i < 2*sci->total_bands; i++) - { - sci->scfcod[i] = (drmp3_uint8)(sci->bitalloc[i] ? DRMP3_HDR_IS_LAYER_1(hdr) ? 2 : drmp3_bs_get_bits(bs, 2) : 6); - } - - drmp3_L12_read_scalefactors(bs, sci->bitalloc, sci->scfcod, sci->total_bands*2, sci->scf); - - for (i = sci->stereo_bands; i < sci->total_bands; i++) - { - sci->bitalloc[2*i + 1] = 0; - } -} - -static int drmp3_L12_dequantize_granule(float *grbuf, drmp3_bs *bs, drmp3_L12_scale_info *sci, int group_size) -{ - int i, j, k, choff = 576; - for (j = 0; j < 4; j++) - { - float *dst = grbuf + group_size*j; - for (i = 0; i < 2*sci->total_bands; i++) - { - int ba = sci->bitalloc[i]; - if (ba != 0) - { - if (ba < 17) - { - int half = (1 << (ba - 1)) - 1; - for (k = 0; k < group_size; k++) - { - dst[k] = (float)((int)drmp3_bs_get_bits(bs, ba) - half); - } - } else - { - unsigned mod = (2 << (ba - 17)) + 1; /* 3, 5, 9 */ - unsigned code = drmp3_bs_get_bits(bs, mod + 2 - (mod >> 3)); /* 5, 7, 10 */ - for (k = 0; k < group_size; k++, code /= mod) - { - dst[k] = (float)((int)(code % mod - mod/2)); - } - } - } - dst += choff; - choff = 18 - choff; - } - } - return group_size*4; -} - -static void drmp3_L12_apply_scf_384(drmp3_L12_scale_info *sci, const float *scf, float *dst) -{ - int i, k; - DRMP3_COPY_MEMORY(dst + 576 + sci->stereo_bands*18, dst + sci->stereo_bands*18, (sci->total_bands - sci->stereo_bands)*18*sizeof(float)); - for (i = 0; i < sci->total_bands; i++, dst += 18, scf += 6) - { - for (k = 0; k < 12; k++) - { - dst[k + 0] *= scf[0]; - dst[k + 576] *= scf[3]; - } - } -} -#endif - -static int drmp3_L3_read_side_info(drmp3_bs *bs, drmp3_L3_gr_info *gr, const drmp3_uint8 *hdr) -{ - static const drmp3_uint8 g_scf_long[8][23] = { - { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, - { 12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2,0 }, - { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, - { 6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,54,62,70,76,36,0 }, - { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, - { 4,4,4,4,4,4,6,6,8,8,10,12,16,20,24,28,34,42,50,54,76,158,0 }, - { 4,4,4,4,4,4,6,6,6,8,10,12,16,18,22,28,34,40,46,54,54,192,0 }, - { 4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102,26,0 } - }; - static const drmp3_uint8 g_scf_short[8][40] = { - { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, - { 8,8,8,8,8,8,8,8,8,12,12,12,16,16,16,20,20,20,24,24,24,28,28,28,36,36,36,2,2,2,2,2,2,2,2,2,26,26,26,0 }, - { 4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,8,8,8,10,10,10,14,14,14,18,18,18,26,26,26,32,32,32,42,42,42,18,18,18,0 }, - { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,32,32,32,44,44,44,12,12,12,0 }, - { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, - { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,22,22,22,30,30,30,56,56,56,0 }, - { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,10,10,10,12,12,12,14,14,14,16,16,16,20,20,20,26,26,26,66,66,66,0 }, - { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,12,12,12,16,16,16,20,20,20,26,26,26,34,34,34,42,42,42,12,12,12,0 } - }; - static const drmp3_uint8 g_scf_mixed[8][40] = { - { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, - { 12,12,12,4,4,4,8,8,8,12,12,12,16,16,16,20,20,20,24,24,24,28,28,28,36,36,36,2,2,2,2,2,2,2,2,2,26,26,26,0 }, - { 6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,14,14,14,18,18,18,26,26,26,32,32,32,42,42,42,18,18,18,0 }, - { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,32,32,32,44,44,44,12,12,12,0 }, - { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, - { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,22,22,22,30,30,30,56,56,56,0 }, - { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,6,6,6,10,10,10,12,12,12,14,14,14,16,16,16,20,20,20,26,26,26,66,66,66,0 }, - { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,8,8,8,12,12,12,16,16,16,20,20,20,26,26,26,34,34,34,42,42,42,12,12,12,0 } - }; - - unsigned tables, scfsi = 0; - int main_data_begin, part_23_sum = 0; - int gr_count = DRMP3_HDR_IS_MONO(hdr) ? 1 : 2; - int sr_idx = DRMP3_HDR_GET_MY_SAMPLE_RATE(hdr); sr_idx -= (sr_idx != 0); - - if (DRMP3_HDR_TEST_MPEG1(hdr)) - { - gr_count *= 2; - main_data_begin = drmp3_bs_get_bits(bs, 9); - scfsi = drmp3_bs_get_bits(bs, 7 + gr_count); - } else - { - main_data_begin = drmp3_bs_get_bits(bs, 8 + gr_count) >> gr_count; - } - - do - { - if (DRMP3_HDR_IS_MONO(hdr)) - { - scfsi <<= 4; - } - gr->part_23_length = (drmp3_uint16)drmp3_bs_get_bits(bs, 12); - part_23_sum += gr->part_23_length; - gr->big_values = (drmp3_uint16)drmp3_bs_get_bits(bs, 9); - if (gr->big_values > 288) - { - return -1; - } - gr->global_gain = (drmp3_uint8)drmp3_bs_get_bits(bs, 8); - gr->scalefac_compress = (drmp3_uint16)drmp3_bs_get_bits(bs, DRMP3_HDR_TEST_MPEG1(hdr) ? 4 : 9); - gr->sfbtab = g_scf_long[sr_idx]; - gr->n_long_sfb = 22; - gr->n_short_sfb = 0; - if (drmp3_bs_get_bits(bs, 1)) - { - gr->block_type = (drmp3_uint8)drmp3_bs_get_bits(bs, 2); - if (!gr->block_type) - { - return -1; - } - gr->mixed_block_flag = (drmp3_uint8)drmp3_bs_get_bits(bs, 1); - gr->region_count[0] = 7; - gr->region_count[1] = 255; - if (gr->block_type == DRMP3_SHORT_BLOCK_TYPE) - { - scfsi &= 0x0F0F; - if (!gr->mixed_block_flag) - { - gr->region_count[0] = 8; - gr->sfbtab = g_scf_short[sr_idx]; - gr->n_long_sfb = 0; - gr->n_short_sfb = 39; - } else - { - gr->sfbtab = g_scf_mixed[sr_idx]; - gr->n_long_sfb = DRMP3_HDR_TEST_MPEG1(hdr) ? 8 : 6; - gr->n_short_sfb = 30; - } - } - tables = drmp3_bs_get_bits(bs, 10); - tables <<= 5; - gr->subblock_gain[0] = (drmp3_uint8)drmp3_bs_get_bits(bs, 3); - gr->subblock_gain[1] = (drmp3_uint8)drmp3_bs_get_bits(bs, 3); - gr->subblock_gain[2] = (drmp3_uint8)drmp3_bs_get_bits(bs, 3); - } else - { - gr->block_type = 0; - gr->mixed_block_flag = 0; - tables = drmp3_bs_get_bits(bs, 15); - gr->region_count[0] = (drmp3_uint8)drmp3_bs_get_bits(bs, 4); - gr->region_count[1] = (drmp3_uint8)drmp3_bs_get_bits(bs, 3); - gr->region_count[2] = 255; - } - gr->table_select[0] = (drmp3_uint8)(tables >> 10); - gr->table_select[1] = (drmp3_uint8)((tables >> 5) & 31); - gr->table_select[2] = (drmp3_uint8)((tables) & 31); - gr->preflag = (drmp3_uint8)(DRMP3_HDR_TEST_MPEG1(hdr) ? drmp3_bs_get_bits(bs, 1) : (gr->scalefac_compress >= 500)); - gr->scalefac_scale = (drmp3_uint8)drmp3_bs_get_bits(bs, 1); - gr->count1_table = (drmp3_uint8)drmp3_bs_get_bits(bs, 1); - gr->scfsi = (drmp3_uint8)((scfsi >> 12) & 15); - scfsi <<= 4; - gr++; - } while(--gr_count); - - if (part_23_sum + bs->pos > bs->limit + main_data_begin*8) - { - return -1; - } - - return main_data_begin; -} - -static void drmp3_L3_read_scalefactors(drmp3_uint8 *scf, drmp3_uint8 *ist_pos, const drmp3_uint8 *scf_size, const drmp3_uint8 *scf_count, drmp3_bs *bitbuf, int scfsi) -{ - int i, k; - for (i = 0; i < 4 && scf_count[i]; i++, scfsi *= 2) - { - int cnt = scf_count[i]; - if (scfsi & 8) - { - DRMP3_COPY_MEMORY(scf, ist_pos, cnt); - } else - { - int bits = scf_size[i]; - if (!bits) - { - DRMP3_ZERO_MEMORY(scf, cnt); - DRMP3_ZERO_MEMORY(ist_pos, cnt); - } else - { - int max_scf = (scfsi < 0) ? (1 << bits) - 1 : -1; - for (k = 0; k < cnt; k++) - { - int s = drmp3_bs_get_bits(bitbuf, bits); - ist_pos[k] = (drmp3_uint8)(s == max_scf ? -1 : s); - scf[k] = (drmp3_uint8)s; - } - } - } - ist_pos += cnt; - scf += cnt; - } - scf[0] = scf[1] = scf[2] = 0; -} - -static float drmp3_L3_ldexp_q2(float y, int exp_q2) -{ - static const float g_expfrac[4] = { 9.31322575e-10f,7.83145814e-10f,6.58544508e-10f,5.53767716e-10f }; - int e; - do - { - e = DRMP3_MIN(30*4, exp_q2); - y *= g_expfrac[e & 3]*(1 << 30 >> (e >> 2)); - } while ((exp_q2 -= e) > 0); - return y; -} - -static void drmp3_L3_decode_scalefactors(const drmp3_uint8 *hdr, drmp3_uint8 *ist_pos, drmp3_bs *bs, const drmp3_L3_gr_info *gr, float *scf, int ch) -{ - static const drmp3_uint8 g_scf_partitions[3][28] = { - { 6,5,5, 5,6,5,5,5,6,5, 7,3,11,10,0,0, 7, 7, 7,0, 6, 6,6,3, 8, 8,5,0 }, - { 8,9,6,12,6,9,9,9,6,9,12,6,15,18,0,0, 6,15,12,0, 6,12,9,6, 6,18,9,0 }, - { 9,9,6,12,9,9,9,9,9,9,12,6,18,18,0,0,12,12,12,0,12, 9,9,6,15,12,9,0 } - }; - const drmp3_uint8 *scf_partition = g_scf_partitions[!!gr->n_short_sfb + !gr->n_long_sfb]; - drmp3_uint8 scf_size[4], iscf[40]; - int i, scf_shift = gr->scalefac_scale + 1, gain_exp, scfsi = gr->scfsi; - float gain; - - if (DRMP3_HDR_TEST_MPEG1(hdr)) - { - static const drmp3_uint8 g_scfc_decode[16] = { 0,1,2,3, 12,5,6,7, 9,10,11,13, 14,15,18,19 }; - int part = g_scfc_decode[gr->scalefac_compress]; - scf_size[1] = scf_size[0] = (drmp3_uint8)(part >> 2); - scf_size[3] = scf_size[2] = (drmp3_uint8)(part & 3); - } else - { - static const drmp3_uint8 g_mod[6*4] = { 5,5,4,4,5,5,4,1,4,3,1,1,5,6,6,1,4,4,4,1,4,3,1,1 }; - int k, modprod, sfc, ist = DRMP3_HDR_TEST_I_STEREO(hdr) && ch; - sfc = gr->scalefac_compress >> ist; - for (k = ist*3*4; sfc >= 0; sfc -= modprod, k += 4) - { - for (modprod = 1, i = 3; i >= 0; i--) - { - scf_size[i] = (drmp3_uint8)(sfc / modprod % g_mod[k + i]); - modprod *= g_mod[k + i]; - } - } - scf_partition += k; - scfsi = -16; - } - drmp3_L3_read_scalefactors(iscf, ist_pos, scf_size, scf_partition, bs, scfsi); - - if (gr->n_short_sfb) - { - int sh = 3 - scf_shift; - for (i = 0; i < gr->n_short_sfb; i += 3) - { - iscf[gr->n_long_sfb + i + 0] = (drmp3_uint8)(iscf[gr->n_long_sfb + i + 0] + (gr->subblock_gain[0] << sh)); - iscf[gr->n_long_sfb + i + 1] = (drmp3_uint8)(iscf[gr->n_long_sfb + i + 1] + (gr->subblock_gain[1] << sh)); - iscf[gr->n_long_sfb + i + 2] = (drmp3_uint8)(iscf[gr->n_long_sfb + i + 2] + (gr->subblock_gain[2] << sh)); - } - } else if (gr->preflag) - { - static const drmp3_uint8 g_preamp[10] = { 1,1,1,1,2,2,3,3,3,2 }; - for (i = 0; i < 10; i++) - { - iscf[11 + i] = (drmp3_uint8)(iscf[11 + i] + g_preamp[i]); - } - } - - gain_exp = gr->global_gain + DRMP3_BITS_DEQUANTIZER_OUT*4 - 210 - (DRMP3_HDR_IS_MS_STEREO(hdr) ? 2 : 0); - gain = drmp3_L3_ldexp_q2(1 << (DRMP3_MAX_SCFI/4), DRMP3_MAX_SCFI - gain_exp); - for (i = 0; i < (int)(gr->n_long_sfb + gr->n_short_sfb); i++) - { - scf[i] = drmp3_L3_ldexp_q2(gain, iscf[i] << scf_shift); - } -} - -static const float g_drmp3_pow43[129 + 16] = { - 0,-1,-2.519842f,-4.326749f,-6.349604f,-8.549880f,-10.902724f,-13.390518f,-16.000000f,-18.720754f,-21.544347f,-24.463781f,-27.473142f,-30.567351f,-33.741992f,-36.993181f, - 0,1,2.519842f,4.326749f,6.349604f,8.549880f,10.902724f,13.390518f,16.000000f,18.720754f,21.544347f,24.463781f,27.473142f,30.567351f,33.741992f,36.993181f,40.317474f,43.711787f,47.173345f,50.699631f,54.288352f,57.937408f,61.644865f,65.408941f,69.227979f,73.100443f,77.024898f,81.000000f,85.024491f,89.097188f,93.216975f,97.382800f,101.593667f,105.848633f,110.146801f,114.487321f,118.869381f,123.292209f,127.755065f,132.257246f,136.798076f,141.376907f,145.993119f,150.646117f,155.335327f,160.060199f,164.820202f,169.614826f,174.443577f,179.305980f,184.201575f,189.129918f,194.090580f,199.083145f,204.107210f,209.162385f,214.248292f,219.364564f,224.510845f,229.686789f,234.892058f,240.126328f,245.389280f,250.680604f,256.000000f,261.347174f,266.721841f,272.123723f,277.552547f,283.008049f,288.489971f,293.998060f,299.532071f,305.091761f,310.676898f,316.287249f,321.922592f,327.582707f,333.267377f,338.976394f,344.709550f,350.466646f,356.247482f,362.051866f,367.879608f,373.730522f,379.604427f,385.501143f,391.420496f,397.362314f,403.326427f,409.312672f,415.320884f,421.350905f,427.402579f,433.475750f,439.570269f,445.685987f,451.822757f,457.980436f,464.158883f,470.357960f,476.577530f,482.817459f,489.077615f,495.357868f,501.658090f,507.978156f,514.317941f,520.677324f,527.056184f,533.454404f,539.871867f,546.308458f,552.764065f,559.238575f,565.731879f,572.243870f,578.774440f,585.323483f,591.890898f,598.476581f,605.080431f,611.702349f,618.342238f,625.000000f,631.675540f,638.368763f,645.079578f -}; - -static float drmp3_L3_pow_43(int x) -{ - float frac; - int sign, mult = 256; - - if (x < 129) - { - return g_drmp3_pow43[16 + x]; - } - - if (x < 1024) - { - mult = 16; - x <<= 3; - } - - sign = 2*x & 64; - frac = (float)((x & 63) - sign) / ((x & ~63) + sign); - return g_drmp3_pow43[16 + ((x + sign) >> 6)]*(1.f + frac*((4.f/3) + frac*(2.f/9)))*mult; -} - -static void drmp3_L3_huffman(float *dst, drmp3_bs *bs, const drmp3_L3_gr_info *gr_info, const float *scf, int layer3gr_limit) -{ - static const drmp3_int16 tabs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 785,785,785,785,784,784,784,784,513,513,513,513,513,513,513,513,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256, - -255,1313,1298,1282,785,785,785,785,784,784,784,784,769,769,769,769,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,290,288, - -255,1313,1298,1282,769,769,769,769,529,529,529,529,529,529,529,529,528,528,528,528,528,528,528,528,512,512,512,512,512,512,512,512,290,288, - 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static const drmp3_uint8 tab32[] = { 130,162,193,209,44,28,76,140,9,9,9,9,9,9,9,9,190,254,222,238,126,94,157,157,109,61,173,205}; - static const drmp3_uint8 tab33[] = { 252,236,220,204,188,172,156,140,124,108,92,76,60,44,28,12 }; - static const drmp3_int16 tabindex[2*16] = { 0,32,64,98,0,132,180,218,292,364,426,538,648,746,0,1126,1460,1460,1460,1460,1460,1460,1460,1460,1842,1842,1842,1842,1842,1842,1842,1842 }; - static const drmp3_uint8 g_linbits[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,6,8,10,13,4,5,6,7,8,9,11,13 }; - -#define DRMP3_PEEK_BITS(n) (bs_cache >> (32 - (n))) -#define DRMP3_FLUSH_BITS(n) { bs_cache <<= (n); bs_sh += (n); } -#define DRMP3_CHECK_BITS while (bs_sh >= 0) { bs_cache |= (drmp3_uint32)*bs_next_ptr++ << bs_sh; bs_sh -= 8; } -#define DRMP3_BSPOS ((bs_next_ptr - bs->buf)*8 - 24 + bs_sh) - - float one = 0.0f; - int ireg = 0, big_val_cnt = gr_info->big_values; - const drmp3_uint8 *sfb = gr_info->sfbtab; - const drmp3_uint8 *bs_next_ptr = bs->buf + bs->pos/8; - drmp3_uint32 bs_cache = (((bs_next_ptr[0]*256u + bs_next_ptr[1])*256u + bs_next_ptr[2])*256u + bs_next_ptr[3]) << (bs->pos & 7); - int pairs_to_decode, np, bs_sh = (bs->pos & 7) - 8; - bs_next_ptr += 4; - - while (big_val_cnt > 0) - { - int tab_num = gr_info->table_select[ireg]; - int sfb_cnt = gr_info->region_count[ireg++]; - const drmp3_int16 *codebook = tabs + tabindex[tab_num]; - int linbits = g_linbits[tab_num]; - if (linbits) - { - do - { - np = *sfb++ / 2; - pairs_to_decode = DRMP3_MIN(big_val_cnt, np); - one = *scf++; - do - { - int j, w = 5; - int leaf = codebook[DRMP3_PEEK_BITS(w)]; - while (leaf < 0) - { - DRMP3_FLUSH_BITS(w); - w = leaf & 7; - leaf = codebook[DRMP3_PEEK_BITS(w) - (leaf >> 3)]; - } - DRMP3_FLUSH_BITS(leaf >> 8); - - for (j = 0; j < 2; j++, dst++, leaf >>= 4) - { - int lsb = leaf & 0x0F; - if (lsb == 15) - { - lsb += DRMP3_PEEK_BITS(linbits); - DRMP3_FLUSH_BITS(linbits); - DRMP3_CHECK_BITS; - *dst = one*drmp3_L3_pow_43(lsb)*((drmp3_int32)bs_cache < 0 ? -1: 1); - } else - { - *dst = g_drmp3_pow43[16 + lsb - 16*(bs_cache >> 31)]*one; - } - DRMP3_FLUSH_BITS(lsb ? 1 : 0); - } - DRMP3_CHECK_BITS; - } while (--pairs_to_decode); - } while ((big_val_cnt -= np) > 0 && --sfb_cnt >= 0); - } else - { - do - { - np = *sfb++ / 2; - pairs_to_decode = DRMP3_MIN(big_val_cnt, np); - one = *scf++; - do - { - int j, w = 5; - int leaf = codebook[DRMP3_PEEK_BITS(w)]; - while (leaf < 0) - { - DRMP3_FLUSH_BITS(w); - w = leaf & 7; - leaf = codebook[DRMP3_PEEK_BITS(w) - (leaf >> 3)]; - } - DRMP3_FLUSH_BITS(leaf >> 8); - - for (j = 0; j < 2; j++, dst++, leaf >>= 4) - { - int lsb = leaf & 0x0F; - *dst = g_drmp3_pow43[16 + lsb - 16*(bs_cache >> 31)]*one; - DRMP3_FLUSH_BITS(lsb ? 1 : 0); - } - DRMP3_CHECK_BITS; - } while (--pairs_to_decode); - } while ((big_val_cnt -= np) > 0 && --sfb_cnt >= 0); - } - } - - for (np = 1 - big_val_cnt;; dst += 4) - { - const drmp3_uint8 *codebook_count1 = (gr_info->count1_table) ? tab33 : tab32; - int leaf = codebook_count1[DRMP3_PEEK_BITS(4)]; - if (!(leaf & 8)) - { - leaf = codebook_count1[(leaf >> 3) + (bs_cache << 4 >> (32 - (leaf & 3)))]; - } - DRMP3_FLUSH_BITS(leaf & 7); - if (DRMP3_BSPOS > layer3gr_limit) - { - break; - } -#define DRMP3_RELOAD_SCALEFACTOR if (!--np) { np = *sfb++/2; if (!np) break; one = *scf++; } -#define DRMP3_DEQ_COUNT1(s) if (leaf & (128 >> s)) { dst[s] = ((drmp3_int32)bs_cache < 0) ? -one : one; DRMP3_FLUSH_BITS(1) } - DRMP3_RELOAD_SCALEFACTOR; - DRMP3_DEQ_COUNT1(0); - DRMP3_DEQ_COUNT1(1); - DRMP3_RELOAD_SCALEFACTOR; - DRMP3_DEQ_COUNT1(2); - DRMP3_DEQ_COUNT1(3); - DRMP3_CHECK_BITS; - } - - bs->pos = layer3gr_limit; -} - -static void drmp3_L3_midside_stereo(float *left, int n) -{ - int i = 0; - float *right = left + 576; -#if DRMP3_HAVE_SIMD - if (drmp3_have_simd()) - { - for (; i < n - 3; i += 4) - { - drmp3_f4 vl = DRMP3_VLD(left + i); - drmp3_f4 vr = DRMP3_VLD(right + i); - DRMP3_VSTORE(left + i, DRMP3_VADD(vl, vr)); - DRMP3_VSTORE(right + i, DRMP3_VSUB(vl, vr)); - } -#ifdef __GNUC__ - /* Workaround for spurious -Waggressive-loop-optimizations warning from gcc. - * For more info see: https://github.com/lieff/minimp3/issues/88 - */ - if (__builtin_constant_p(n % 4 == 0) && n % 4 == 0) - return; -#endif - } -#endif - for (; i < n; i++) - { - float a = left[i]; - float b = right[i]; - left[i] = a + b; - right[i] = a - b; - } -} - -static void drmp3_L3_intensity_stereo_band(float *left, int n, float kl, float kr) -{ - int i; - for (i = 0; i < n; i++) - { - left[i + 576] = left[i]*kr; - left[i] = left[i]*kl; - } -} - -static void drmp3_L3_stereo_top_band(const float *right, const drmp3_uint8 *sfb, int nbands, int max_band[3]) -{ - int i, k; - - max_band[0] = max_band[1] = max_band[2] = -1; - - for (i = 0; i < nbands; i++) - { - for (k = 0; k < sfb[i]; k += 2) - { - if (right[k] != 0 || right[k + 1] != 0) - { - max_band[i % 3] = i; - break; - } - } - right += sfb[i]; - } -} - -static void drmp3_L3_stereo_process(float *left, const drmp3_uint8 *ist_pos, const drmp3_uint8 *sfb, const drmp3_uint8 *hdr, int max_band[3], int mpeg2_sh) -{ - static const float g_pan[7*2] = { 0,1,0.21132487f,0.78867513f,0.36602540f,0.63397460f,0.5f,0.5f,0.63397460f,0.36602540f,0.78867513f,0.21132487f,1,0 }; - unsigned i, max_pos = DRMP3_HDR_TEST_MPEG1(hdr) ? 7 : 64; - - for (i = 0; sfb[i]; i++) - { - unsigned ipos = ist_pos[i]; - if ((int)i > max_band[i % 3] && ipos < max_pos) - { - float kl, kr, s = DRMP3_HDR_TEST_MS_STEREO(hdr) ? 1.41421356f : 1; - if (DRMP3_HDR_TEST_MPEG1(hdr)) - { - kl = g_pan[2*ipos]; - kr = g_pan[2*ipos + 1]; - } else - { - kl = 1; - kr = drmp3_L3_ldexp_q2(1, (ipos + 1) >> 1 << mpeg2_sh); - if (ipos & 1) - { - kl = kr; - kr = 1; - } - } - drmp3_L3_intensity_stereo_band(left, sfb[i], kl*s, kr*s); - } else if (DRMP3_HDR_TEST_MS_STEREO(hdr)) - { - drmp3_L3_midside_stereo(left, sfb[i]); - } - left += sfb[i]; - } -} - -static void drmp3_L3_intensity_stereo(float *left, drmp3_uint8 *ist_pos, const drmp3_L3_gr_info *gr, const drmp3_uint8 *hdr) -{ - int max_band[3], n_sfb = gr->n_long_sfb + gr->n_short_sfb; - int i, max_blocks = gr->n_short_sfb ? 3 : 1; - - drmp3_L3_stereo_top_band(left + 576, gr->sfbtab, n_sfb, max_band); - if (gr->n_long_sfb) - { - max_band[0] = max_band[1] = max_band[2] = DRMP3_MAX(DRMP3_MAX(max_band[0], max_band[1]), max_band[2]); - } - for (i = 0; i < max_blocks; i++) - { - int default_pos = DRMP3_HDR_TEST_MPEG1(hdr) ? 3 : 0; - int itop = n_sfb - max_blocks + i; - int prev = itop - max_blocks; - ist_pos[itop] = (drmp3_uint8)(max_band[i] >= prev ? default_pos : ist_pos[prev]); - } - drmp3_L3_stereo_process(left, ist_pos, gr->sfbtab, hdr, max_band, gr[1].scalefac_compress & 1); -} - -static void drmp3_L3_reorder(float *grbuf, float *scratch, const drmp3_uint8 *sfb) -{ - int i, len; - float *src = grbuf, *dst = scratch; - - for (;0 != (len = *sfb); sfb += 3, src += 2*len) - { - for (i = 0; i < len; i++, src++) - { - *dst++ = src[0*len]; - *dst++ = src[1*len]; - *dst++ = src[2*len]; - } - } - DRMP3_COPY_MEMORY(grbuf, scratch, (dst - scratch)*sizeof(float)); -} - -static void drmp3_L3_antialias(float *grbuf, int nbands) -{ - static const float g_aa[2][8] = { - {0.85749293f,0.88174200f,0.94962865f,0.98331459f,0.99551782f,0.99916056f,0.99989920f,0.99999316f}, - {0.51449576f,0.47173197f,0.31337745f,0.18191320f,0.09457419f,0.04096558f,0.01419856f,0.00369997f} - }; - - for (; nbands > 0; nbands--, grbuf += 18) - { - int i = 0; -#if DRMP3_HAVE_SIMD - if (drmp3_have_simd()) for (; i < 8; i += 4) - { - drmp3_f4 vu = DRMP3_VLD(grbuf + 18 + i); - drmp3_f4 vd = DRMP3_VLD(grbuf + 14 - i); - drmp3_f4 vc0 = DRMP3_VLD(g_aa[0] + i); - drmp3_f4 vc1 = DRMP3_VLD(g_aa[1] + i); - vd = DRMP3_VREV(vd); - DRMP3_VSTORE(grbuf + 18 + i, DRMP3_VSUB(DRMP3_VMUL(vu, vc0), DRMP3_VMUL(vd, vc1))); - vd = DRMP3_VADD(DRMP3_VMUL(vu, vc1), DRMP3_VMUL(vd, vc0)); - DRMP3_VSTORE(grbuf + 14 - i, DRMP3_VREV(vd)); - } -#endif -#ifndef DR_MP3_ONLY_SIMD - for(; i < 8; i++) - { - float u = grbuf[18 + i]; - float d = grbuf[17 - i]; - grbuf[18 + i] = u*g_aa[0][i] - d*g_aa[1][i]; - grbuf[17 - i] = u*g_aa[1][i] + d*g_aa[0][i]; - } -#endif - } -} - -static void drmp3_L3_dct3_9(float *y) -{ - float s0, s1, s2, s3, s4, s5, s6, s7, s8, t0, t2, t4; - - s0 = y[0]; s2 = y[2]; s4 = y[4]; s6 = y[6]; s8 = y[8]; - t0 = s0 + s6*0.5f; - s0 -= s6; - t4 = (s4 + s2)*0.93969262f; - t2 = (s8 + s2)*0.76604444f; - s6 = (s4 - s8)*0.17364818f; - s4 += s8 - s2; - - s2 = s0 - s4*0.5f; - y[4] = s4 + s0; - s8 = t0 - t2 + s6; - s0 = t0 - t4 + t2; - s4 = t0 + t4 - s6; - - s1 = y[1]; s3 = y[3]; s5 = y[5]; s7 = y[7]; - - s3 *= 0.86602540f; - t0 = (s5 + s1)*0.98480775f; - t4 = (s5 - s7)*0.34202014f; - t2 = (s1 + s7)*0.64278761f; - s1 = (s1 - s5 - s7)*0.86602540f; - - s5 = t0 - s3 - t2; - s7 = t4 - s3 - t0; - s3 = t4 + s3 - t2; - - y[0] = s4 - s7; - y[1] = s2 + s1; - y[2] = s0 - s3; - y[3] = s8 + s5; - y[5] = s8 - s5; - y[6] = s0 + s3; - y[7] = s2 - s1; - y[8] = s4 + s7; -} - -static void drmp3_L3_imdct36(float *grbuf, float *overlap, const float *window, int nbands) -{ - int i, j; - static const float g_twid9[18] = { - 0.73727734f,0.79335334f,0.84339145f,0.88701083f,0.92387953f,0.95371695f,0.97629601f,0.99144486f,0.99904822f,0.67559021f,0.60876143f,0.53729961f,0.46174861f,0.38268343f,0.30070580f,0.21643961f,0.13052619f,0.04361938f - }; - - for (j = 0; j < nbands; j++, grbuf += 18, overlap += 9) - { - float co[9], si[9]; - co[0] = -grbuf[0]; - si[0] = grbuf[17]; - for (i = 0; i < 4; i++) - { - si[8 - 2*i] = grbuf[4*i + 1] - grbuf[4*i + 2]; - co[1 + 2*i] = grbuf[4*i + 1] + grbuf[4*i + 2]; - si[7 - 2*i] = grbuf[4*i + 4] - grbuf[4*i + 3]; - co[2 + 2*i] = -(grbuf[4*i + 3] + grbuf[4*i + 4]); - } - drmp3_L3_dct3_9(co); - drmp3_L3_dct3_9(si); - - si[1] = -si[1]; - si[3] = -si[3]; - si[5] = -si[5]; - si[7] = -si[7]; - - i = 0; - -#if DRMP3_HAVE_SIMD - if (drmp3_have_simd()) for (; i < 8; i += 4) - { - drmp3_f4 vovl = DRMP3_VLD(overlap + i); - drmp3_f4 vc = DRMP3_VLD(co + i); - drmp3_f4 vs = DRMP3_VLD(si + i); - drmp3_f4 vr0 = DRMP3_VLD(g_twid9 + i); - drmp3_f4 vr1 = DRMP3_VLD(g_twid9 + 9 + i); - drmp3_f4 vw0 = DRMP3_VLD(window + i); - drmp3_f4 vw1 = DRMP3_VLD(window + 9 + i); - drmp3_f4 vsum = DRMP3_VADD(DRMP3_VMUL(vc, vr1), DRMP3_VMUL(vs, vr0)); - DRMP3_VSTORE(overlap + i, DRMP3_VSUB(DRMP3_VMUL(vc, vr0), DRMP3_VMUL(vs, vr1))); - DRMP3_VSTORE(grbuf + i, DRMP3_VSUB(DRMP3_VMUL(vovl, vw0), DRMP3_VMUL(vsum, vw1))); - vsum = DRMP3_VADD(DRMP3_VMUL(vovl, vw1), DRMP3_VMUL(vsum, vw0)); - DRMP3_VSTORE(grbuf + 14 - i, DRMP3_VREV(vsum)); - } -#endif - for (; i < 9; i++) - { - float ovl = overlap[i]; - float sum = co[i]*g_twid9[9 + i] + si[i]*g_twid9[0 + i]; - overlap[i] = co[i]*g_twid9[0 + i] - si[i]*g_twid9[9 + i]; - grbuf[i] = ovl*window[0 + i] - sum*window[9 + i]; - grbuf[17 - i] = ovl*window[9 + i] + sum*window[0 + i]; - } - } -} - -static void drmp3_L3_idct3(float x0, float x1, float x2, float *dst) -{ - float m1 = x1*0.86602540f; - float a1 = x0 - x2*0.5f; - dst[1] = x0 + x2; - dst[0] = a1 + m1; - dst[2] = a1 - m1; -} - -static void drmp3_L3_imdct12(float *x, float *dst, float *overlap) -{ - static const float g_twid3[6] = { 0.79335334f,0.92387953f,0.99144486f, 0.60876143f,0.38268343f,0.13052619f }; - float co[3], si[3]; - int i; - - drmp3_L3_idct3(-x[0], x[6] + x[3], x[12] + x[9], co); - drmp3_L3_idct3(x[15], x[12] - x[9], x[6] - x[3], si); - si[1] = -si[1]; - - for (i = 0; i < 3; i++) - { - float ovl = overlap[i]; - float sum = co[i]*g_twid3[3 + i] + si[i]*g_twid3[0 + i]; - overlap[i] = co[i]*g_twid3[0 + i] - si[i]*g_twid3[3 + i]; - dst[i] = ovl*g_twid3[2 - i] - sum*g_twid3[5 - i]; - dst[5 - i] = ovl*g_twid3[5 - i] + sum*g_twid3[2 - i]; - } -} - -static void drmp3_L3_imdct_short(float *grbuf, float *overlap, int nbands) -{ - for (;nbands > 0; nbands--, overlap += 9, grbuf += 18) - { - float tmp[18]; - DRMP3_COPY_MEMORY(tmp, grbuf, sizeof(tmp)); - DRMP3_COPY_MEMORY(grbuf, overlap, 6*sizeof(float)); - drmp3_L3_imdct12(tmp, grbuf + 6, overlap + 6); - drmp3_L3_imdct12(tmp + 1, grbuf + 12, overlap + 6); - drmp3_L3_imdct12(tmp + 2, overlap, overlap + 6); - } -} - -static void drmp3_L3_change_sign(float *grbuf) -{ - int b, i; - for (b = 0, grbuf += 18; b < 32; b += 2, grbuf += 36) - for (i = 1; i < 18; i += 2) - grbuf[i] = -grbuf[i]; -} - -static void drmp3_L3_imdct_gr(float *grbuf, float *overlap, unsigned block_type, unsigned n_long_bands) -{ - static const float g_mdct_window[2][18] = { - { 0.99904822f,0.99144486f,0.97629601f,0.95371695f,0.92387953f,0.88701083f,0.84339145f,0.79335334f,0.73727734f,0.04361938f,0.13052619f,0.21643961f,0.30070580f,0.38268343f,0.46174861f,0.53729961f,0.60876143f,0.67559021f }, - { 1,1,1,1,1,1,0.99144486f,0.92387953f,0.79335334f,0,0,0,0,0,0,0.13052619f,0.38268343f,0.60876143f } - }; - if (n_long_bands) - { - drmp3_L3_imdct36(grbuf, overlap, g_mdct_window[0], n_long_bands); - grbuf += 18*n_long_bands; - overlap += 9*n_long_bands; - } - if (block_type == DRMP3_SHORT_BLOCK_TYPE) - drmp3_L3_imdct_short(grbuf, overlap, 32 - n_long_bands); - else - drmp3_L3_imdct36(grbuf, overlap, g_mdct_window[block_type == DRMP3_STOP_BLOCK_TYPE], 32 - n_long_bands); -} - -static void drmp3_L3_save_reservoir(drmp3dec *h, drmp3dec_scratch *s) -{ - int pos = (s->bs.pos + 7)/8u; - int remains = s->bs.limit/8u - pos; - if (remains > DRMP3_MAX_BITRESERVOIR_BYTES) - { - pos += remains - DRMP3_MAX_BITRESERVOIR_BYTES; - remains = DRMP3_MAX_BITRESERVOIR_BYTES; - } - if (remains > 0) - { - DRMP3_MOVE_MEMORY(h->reserv_buf, s->maindata + pos, remains); - } - h->reserv = remains; -} - -static int drmp3_L3_restore_reservoir(drmp3dec *h, drmp3_bs *bs, drmp3dec_scratch *s, int main_data_begin) -{ - int frame_bytes = (bs->limit - bs->pos)/8; - int bytes_have = DRMP3_MIN(h->reserv, main_data_begin); - DRMP3_COPY_MEMORY(s->maindata, h->reserv_buf + DRMP3_MAX(0, h->reserv - main_data_begin), DRMP3_MIN(h->reserv, main_data_begin)); - DRMP3_COPY_MEMORY(s->maindata + bytes_have, bs->buf + bs->pos/8, frame_bytes); - drmp3_bs_init(&s->bs, s->maindata, bytes_have + frame_bytes); - return h->reserv >= main_data_begin; -} - -static void drmp3_L3_decode(drmp3dec *h, drmp3dec_scratch *s, drmp3_L3_gr_info *gr_info, int nch) -{ - int ch; - - for (ch = 0; ch < nch; ch++) - { - int layer3gr_limit = s->bs.pos + gr_info[ch].part_23_length; - drmp3_L3_decode_scalefactors(h->header, s->ist_pos[ch], &s->bs, gr_info + ch, s->scf, ch); - drmp3_L3_huffman(s->grbuf[ch], &s->bs, gr_info + ch, s->scf, layer3gr_limit); - } - - if (DRMP3_HDR_TEST_I_STEREO(h->header)) - { - drmp3_L3_intensity_stereo(s->grbuf[0], s->ist_pos[1], gr_info, h->header); - } else if (DRMP3_HDR_IS_MS_STEREO(h->header)) - { - drmp3_L3_midside_stereo(s->grbuf[0], 576); - } - - for (ch = 0; ch < nch; ch++, gr_info++) - { - int aa_bands = 31; - int n_long_bands = (gr_info->mixed_block_flag ? 2 : 0) << (int)(DRMP3_HDR_GET_MY_SAMPLE_RATE(h->header) == 2); - - if (gr_info->n_short_sfb) - { - aa_bands = n_long_bands - 1; - drmp3_L3_reorder(s->grbuf[ch] + n_long_bands*18, s->syn[0], gr_info->sfbtab + gr_info->n_long_sfb); - } - - drmp3_L3_antialias(s->grbuf[ch], aa_bands); - drmp3_L3_imdct_gr(s->grbuf[ch], h->mdct_overlap[ch], gr_info->block_type, n_long_bands); - drmp3_L3_change_sign(s->grbuf[ch]); - } -} - -static void drmp3d_DCT_II(float *grbuf, int n) -{ - static const float g_sec[24] = { - 10.19000816f,0.50060302f,0.50241929f,3.40760851f,0.50547093f,0.52249861f,2.05778098f,0.51544732f,0.56694406f,1.48416460f,0.53104258f,0.64682180f,1.16943991f,0.55310392f,0.78815460f,0.97256821f,0.58293498f,1.06067765f,0.83934963f,0.62250412f,1.72244716f,0.74453628f,0.67480832f,5.10114861f - }; - int i, k = 0; -#if DRMP3_HAVE_SIMD - if (drmp3_have_simd()) for (; k < n; k += 4) - { - drmp3_f4 t[4][8], *x; - float *y = grbuf + k; - - for (x = t[0], i = 0; i < 8; i++, x++) - { - drmp3_f4 x0 = DRMP3_VLD(&y[i*18]); - drmp3_f4 x1 = DRMP3_VLD(&y[(15 - i)*18]); - drmp3_f4 x2 = DRMP3_VLD(&y[(16 + i)*18]); - drmp3_f4 x3 = DRMP3_VLD(&y[(31 - i)*18]); - drmp3_f4 t0 = DRMP3_VADD(x0, x3); - drmp3_f4 t1 = DRMP3_VADD(x1, x2); - drmp3_f4 t2 = DRMP3_VMUL_S(DRMP3_VSUB(x1, x2), g_sec[3*i + 0]); - drmp3_f4 t3 = DRMP3_VMUL_S(DRMP3_VSUB(x0, x3), g_sec[3*i + 1]); - x[0] = DRMP3_VADD(t0, t1); - x[8] = DRMP3_VMUL_S(DRMP3_VSUB(t0, t1), g_sec[3*i + 2]); - x[16] = DRMP3_VADD(t3, t2); - x[24] = DRMP3_VMUL_S(DRMP3_VSUB(t3, t2), g_sec[3*i + 2]); - } - for (x = t[0], i = 0; i < 4; i++, x += 8) - { - drmp3_f4 x0 = x[0], x1 = x[1], x2 = x[2], x3 = x[3], x4 = x[4], x5 = x[5], x6 = x[6], x7 = x[7], xt; - xt = DRMP3_VSUB(x0, x7); x0 = DRMP3_VADD(x0, x7); - x7 = DRMP3_VSUB(x1, x6); x1 = DRMP3_VADD(x1, x6); - x6 = DRMP3_VSUB(x2, x5); x2 = DRMP3_VADD(x2, x5); - x5 = DRMP3_VSUB(x3, x4); x3 = DRMP3_VADD(x3, x4); - x4 = DRMP3_VSUB(x0, x3); x0 = DRMP3_VADD(x0, x3); - x3 = DRMP3_VSUB(x1, x2); x1 = DRMP3_VADD(x1, x2); - x[0] = DRMP3_VADD(x0, x1); - x[4] = DRMP3_VMUL_S(DRMP3_VSUB(x0, x1), 0.70710677f); - x5 = DRMP3_VADD(x5, x6); - x6 = DRMP3_VMUL_S(DRMP3_VADD(x6, x7), 0.70710677f); - x7 = DRMP3_VADD(x7, xt); - x3 = DRMP3_VMUL_S(DRMP3_VADD(x3, x4), 0.70710677f); - x5 = DRMP3_VSUB(x5, DRMP3_VMUL_S(x7, 0.198912367f)); /* rotate by PI/8 */ - x7 = DRMP3_VADD(x7, DRMP3_VMUL_S(x5, 0.382683432f)); - x5 = DRMP3_VSUB(x5, DRMP3_VMUL_S(x7, 0.198912367f)); - x0 = DRMP3_VSUB(xt, x6); xt = DRMP3_VADD(xt, x6); - x[1] = DRMP3_VMUL_S(DRMP3_VADD(xt, x7), 0.50979561f); - x[2] = DRMP3_VMUL_S(DRMP3_VADD(x4, x3), 0.54119611f); - x[3] = DRMP3_VMUL_S(DRMP3_VSUB(x0, x5), 0.60134488f); - x[5] = DRMP3_VMUL_S(DRMP3_VADD(x0, x5), 0.89997619f); - x[6] = DRMP3_VMUL_S(DRMP3_VSUB(x4, x3), 1.30656302f); - x[7] = DRMP3_VMUL_S(DRMP3_VSUB(xt, x7), 2.56291556f); - } - - if (k > n - 3) - { -#if DRMP3_HAVE_SSE -#define DRMP3_VSAVE2(i, v) _mm_storel_pi((__m64 *)(void*)&y[i*18], v) -#else -#define DRMP3_VSAVE2(i, v) vst1_f32((float32_t *)&y[(i)*18], vget_low_f32(v)) -#endif - for (i = 0; i < 7; i++, y += 4*18) - { - drmp3_f4 s = DRMP3_VADD(t[3][i], t[3][i + 1]); - DRMP3_VSAVE2(0, t[0][i]); - DRMP3_VSAVE2(1, DRMP3_VADD(t[2][i], s)); - DRMP3_VSAVE2(2, DRMP3_VADD(t[1][i], t[1][i + 1])); - DRMP3_VSAVE2(3, DRMP3_VADD(t[2][1 + i], s)); - } - DRMP3_VSAVE2(0, t[0][7]); - DRMP3_VSAVE2(1, DRMP3_VADD(t[2][7], t[3][7])); - DRMP3_VSAVE2(2, t[1][7]); - DRMP3_VSAVE2(3, t[3][7]); - } else - { -#define DRMP3_VSAVE4(i, v) DRMP3_VSTORE(&y[(i)*18], v) - for (i = 0; i < 7; i++, y += 4*18) - { - drmp3_f4 s = DRMP3_VADD(t[3][i], t[3][i + 1]); - DRMP3_VSAVE4(0, t[0][i]); - DRMP3_VSAVE4(1, DRMP3_VADD(t[2][i], s)); - DRMP3_VSAVE4(2, DRMP3_VADD(t[1][i], t[1][i + 1])); - DRMP3_VSAVE4(3, DRMP3_VADD(t[2][1 + i], s)); - } - DRMP3_VSAVE4(0, t[0][7]); - DRMP3_VSAVE4(1, DRMP3_VADD(t[2][7], t[3][7])); - DRMP3_VSAVE4(2, t[1][7]); - DRMP3_VSAVE4(3, t[3][7]); - } - } else -#endif -#ifdef DR_MP3_ONLY_SIMD - {} /* for HAVE_SIMD=1, MINIMP3_ONLY_SIMD=1 case we do not need non-intrinsic "else" branch */ -#else - for (; k < n; k++) - { - float t[4][8], *x, *y = grbuf + k; - - for (x = t[0], i = 0; i < 8; i++, x++) - { - float x0 = y[i*18]; - float x1 = y[(15 - i)*18]; - float x2 = y[(16 + i)*18]; - float x3 = y[(31 - i)*18]; - float t0 = x0 + x3; - float t1 = x1 + x2; - float t2 = (x1 - x2)*g_sec[3*i + 0]; - float t3 = (x0 - x3)*g_sec[3*i + 1]; - x[0] = t0 + t1; - x[8] = (t0 - t1)*g_sec[3*i + 2]; - x[16] = t3 + t2; - x[24] = (t3 - t2)*g_sec[3*i + 2]; - } - for (x = t[0], i = 0; i < 4; i++, x += 8) - { - float x0 = x[0], x1 = x[1], x2 = x[2], x3 = x[3], x4 = x[4], x5 = x[5], x6 = x[6], x7 = x[7], xt; - xt = x0 - x7; x0 += x7; - x7 = x1 - x6; x1 += x6; - x6 = x2 - x5; x2 += x5; - x5 = x3 - x4; x3 += x4; - x4 = x0 - x3; x0 += x3; - x3 = x1 - x2; x1 += x2; - x[0] = x0 + x1; - x[4] = (x0 - x1)*0.70710677f; - x5 = x5 + x6; - x6 = (x6 + x7)*0.70710677f; - x7 = x7 + xt; - x3 = (x3 + x4)*0.70710677f; - x5 -= x7*0.198912367f; /* rotate by PI/8 */ - x7 += x5*0.382683432f; - x5 -= x7*0.198912367f; - x0 = xt - x6; xt += x6; - x[1] = (xt + x7)*0.50979561f; - x[2] = (x4 + x3)*0.54119611f; - x[3] = (x0 - x5)*0.60134488f; - x[5] = (x0 + x5)*0.89997619f; - x[6] = (x4 - x3)*1.30656302f; - x[7] = (xt - x7)*2.56291556f; - - } - for (i = 0; i < 7; i++, y += 4*18) - { - y[0*18] = t[0][i]; - y[1*18] = t[2][i] + t[3][i] + t[3][i + 1]; - y[2*18] = t[1][i] + t[1][i + 1]; - y[3*18] = t[2][i + 1] + t[3][i] + t[3][i + 1]; - } - y[0*18] = t[0][7]; - y[1*18] = t[2][7] + t[3][7]; - y[2*18] = t[1][7]; - y[3*18] = t[3][7]; - } -#endif -} - -#ifndef DR_MP3_FLOAT_OUTPUT -typedef drmp3_int16 drmp3d_sample_t; - -static drmp3_int16 drmp3d_scale_pcm(float sample) -{ - drmp3_int16 s; -#if DRMP3_HAVE_ARMV6 - drmp3_int32 s32 = (drmp3_int32)(sample + .5f); - s32 -= (s32 < 0); - s = (drmp3_int16)drmp3_clip_int16_arm(s32); -#else - if (sample >= 32766.5) return (drmp3_int16) 32767; - if (sample <= -32767.5) return (drmp3_int16)-32768; - s = (drmp3_int16)(sample + .5f); - s -= (s < 0); /* away from zero, to be compliant */ -#endif - return s; -} -#else -typedef float drmp3d_sample_t; - -static float drmp3d_scale_pcm(float sample) -{ - return sample*(1.f/32768.f); -} -#endif - -static void drmp3d_synth_pair(drmp3d_sample_t *pcm, int nch, const float *z) -{ - float a; - a = (z[14*64] - z[ 0]) * 29; - a += (z[ 1*64] + z[13*64]) * 213; - a += (z[12*64] - z[ 2*64]) * 459; - a += (z[ 3*64] + z[11*64]) * 2037; - a += (z[10*64] - z[ 4*64]) * 5153; - a += (z[ 5*64] + z[ 9*64]) * 6574; - a += (z[ 8*64] - z[ 6*64]) * 37489; - a += z[ 7*64] * 75038; - pcm[0] = drmp3d_scale_pcm(a); - - z += 2; - a = z[14*64] * 104; - a += z[12*64] * 1567; - a += z[10*64] * 9727; - a += z[ 8*64] * 64019; - a += z[ 6*64] * -9975; - a += z[ 4*64] * -45; - a += z[ 2*64] * 146; - a += z[ 0*64] * -5; - pcm[16*nch] = drmp3d_scale_pcm(a); -} - -static void drmp3d_synth(float *xl, drmp3d_sample_t *dstl, int nch, float *lins) -{ - int i; - float *xr = xl + 576*(nch - 1); - drmp3d_sample_t *dstr = dstl + (nch - 1); - - static const float g_win[] = { - -1,26,-31,208,218,401,-519,2063,2000,4788,-5517,7134,5959,35640,-39336,74992, - -1,24,-35,202,222,347,-581,2080,1952,4425,-5879,7640,5288,33791,-41176,74856, - -1,21,-38,196,225,294,-645,2087,1893,4063,-6237,8092,4561,31947,-43006,74630, - -1,19,-41,190,227,244,-711,2085,1822,3705,-6589,8492,3776,30112,-44821,74313, - -1,17,-45,183,228,197,-779,2075,1739,3351,-6935,8840,2935,28289,-46617,73908, - -1,16,-49,176,228,153,-848,2057,1644,3004,-7271,9139,2037,26482,-48390,73415, - -2,14,-53,169,227,111,-919,2032,1535,2663,-7597,9389,1082,24694,-50137,72835, - -2,13,-58,161,224,72,-991,2001,1414,2330,-7910,9592,70,22929,-51853,72169, - -2,11,-63,154,221,36,-1064,1962,1280,2006,-8209,9750,-998,21189,-53534,71420, - -2,10,-68,147,215,2,-1137,1919,1131,1692,-8491,9863,-2122,19478,-55178,70590, - -3,9,-73,139,208,-29,-1210,1870,970,1388,-8755,9935,-3300,17799,-56778,69679, - -3,8,-79,132,200,-57,-1283,1817,794,1095,-8998,9966,-4533,16155,-58333,68692, - -4,7,-85,125,189,-83,-1356,1759,605,814,-9219,9959,-5818,14548,-59838,67629, - -4,7,-91,117,177,-106,-1428,1698,402,545,-9416,9916,-7154,12980,-61289,66494, - -5,6,-97,111,163,-127,-1498,1634,185,288,-9585,9838,-8540,11455,-62684,65290 - }; - float *zlin = lins + 15*64; - const float *w = g_win; - - zlin[4*15] = xl[18*16]; - zlin[4*15 + 1] = xr[18*16]; - zlin[4*15 + 2] = xl[0]; - zlin[4*15 + 3] = xr[0]; - - zlin[4*31] = xl[1 + 18*16]; - zlin[4*31 + 1] = xr[1 + 18*16]; - zlin[4*31 + 2] = xl[1]; - zlin[4*31 + 3] = xr[1]; - - drmp3d_synth_pair(dstr, nch, lins + 4*15 + 1); - drmp3d_synth_pair(dstr + 32*nch, nch, lins + 4*15 + 64 + 1); - drmp3d_synth_pair(dstl, nch, lins + 4*15); - drmp3d_synth_pair(dstl + 32*nch, nch, lins + 4*15 + 64); - -#if DRMP3_HAVE_SIMD - if (drmp3_have_simd()) for (i = 14; i >= 0; i--) - { -#define DRMP3_VLOAD(k) drmp3_f4 w0 = DRMP3_VSET(*w++); drmp3_f4 w1 = DRMP3_VSET(*w++); drmp3_f4 vz = DRMP3_VLD(&zlin[4*i - 64*k]); drmp3_f4 vy = DRMP3_VLD(&zlin[4*i - 64*(15 - k)]); -#define DRMP3_V0(k) { DRMP3_VLOAD(k) b = DRMP3_VADD(DRMP3_VMUL(vz, w1), DRMP3_VMUL(vy, w0)) ; a = DRMP3_VSUB(DRMP3_VMUL(vz, w0), DRMP3_VMUL(vy, w1)); } -#define DRMP3_V1(k) { DRMP3_VLOAD(k) b = DRMP3_VADD(b, DRMP3_VADD(DRMP3_VMUL(vz, w1), DRMP3_VMUL(vy, w0))); a = DRMP3_VADD(a, DRMP3_VSUB(DRMP3_VMUL(vz, w0), DRMP3_VMUL(vy, w1))); } -#define DRMP3_V2(k) { DRMP3_VLOAD(k) b = DRMP3_VADD(b, DRMP3_VADD(DRMP3_VMUL(vz, w1), DRMP3_VMUL(vy, w0))); a = DRMP3_VADD(a, DRMP3_VSUB(DRMP3_VMUL(vy, w1), DRMP3_VMUL(vz, w0))); } - drmp3_f4 a, b; - zlin[4*i] = xl[18*(31 - i)]; - zlin[4*i + 1] = xr[18*(31 - i)]; - zlin[4*i + 2] = xl[1 + 18*(31 - i)]; - zlin[4*i + 3] = xr[1 + 18*(31 - i)]; - zlin[4*i + 64] = xl[1 + 18*(1 + i)]; - zlin[4*i + 64 + 1] = xr[1 + 18*(1 + i)]; - zlin[4*i - 64 + 2] = xl[18*(1 + i)]; - zlin[4*i - 64 + 3] = xr[18*(1 + i)]; - - DRMP3_V0(0) DRMP3_V2(1) DRMP3_V1(2) DRMP3_V2(3) DRMP3_V1(4) DRMP3_V2(5) DRMP3_V1(6) DRMP3_V2(7) - - { -#ifndef DR_MP3_FLOAT_OUTPUT -#if DRMP3_HAVE_SSE - static const drmp3_f4 g_max = { 32767.0f, 32767.0f, 32767.0f, 32767.0f }; - static const drmp3_f4 g_min = { -32768.0f, -32768.0f, -32768.0f, -32768.0f }; - __m128i pcm8 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(a, g_max), g_min)), - _mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(b, g_max), g_min))); - dstr[(15 - i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 1); - dstr[(17 + i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 5); - dstl[(15 - i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 0); - dstl[(17 + i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 4); - dstr[(47 - i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 3); - dstr[(49 + i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 7); - dstl[(47 - i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 2); - dstl[(49 + i)*nch] = (drmp3_int16)_mm_extract_epi16(pcm8, 6); -#else - int16x4_t pcma, pcmb; - a = DRMP3_VADD(a, DRMP3_VSET(0.5f)); - b = DRMP3_VADD(b, DRMP3_VSET(0.5f)); - pcma = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(a), vreinterpretq_s32_u32(vcltq_f32(a, DRMP3_VSET(0))))); - pcmb = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(b), vreinterpretq_s32_u32(vcltq_f32(b, DRMP3_VSET(0))))); - vst1_lane_s16(dstr + (15 - i)*nch, pcma, 1); - vst1_lane_s16(dstr + (17 + i)*nch, pcmb, 1); - vst1_lane_s16(dstl + (15 - i)*nch, pcma, 0); - vst1_lane_s16(dstl + (17 + i)*nch, pcmb, 0); - vst1_lane_s16(dstr + (47 - i)*nch, pcma, 3); - vst1_lane_s16(dstr + (49 + i)*nch, pcmb, 3); - vst1_lane_s16(dstl + (47 - i)*nch, pcma, 2); - vst1_lane_s16(dstl + (49 + i)*nch, pcmb, 2); -#endif -#else - #if DRMP3_HAVE_SSE - static const drmp3_f4 g_scale = { 1.0f/32768.0f, 1.0f/32768.0f, 1.0f/32768.0f, 1.0f/32768.0f }; - #else - const drmp3_f4 g_scale = vdupq_n_f32(1.0f/32768.0f); - #endif - a = DRMP3_VMUL(a, g_scale); - b = DRMP3_VMUL(b, g_scale); -#if DRMP3_HAVE_SSE - _mm_store_ss(dstr + (15 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(1, 1, 1, 1))); - _mm_store_ss(dstr + (17 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(1, 1, 1, 1))); - _mm_store_ss(dstl + (15 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(0, 0, 0, 0))); - _mm_store_ss(dstl + (17 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(0, 0, 0, 0))); - _mm_store_ss(dstr + (47 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(3, 3, 3, 3))); - _mm_store_ss(dstr + (49 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(3, 3, 3, 3))); - _mm_store_ss(dstl + (47 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(2, 2, 2, 2))); - _mm_store_ss(dstl + (49 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(2, 2, 2, 2))); -#else - vst1q_lane_f32(dstr + (15 - i)*nch, a, 1); - vst1q_lane_f32(dstr + (17 + i)*nch, b, 1); - vst1q_lane_f32(dstl + (15 - i)*nch, a, 0); - vst1q_lane_f32(dstl + (17 + i)*nch, b, 0); - vst1q_lane_f32(dstr + (47 - i)*nch, a, 3); - vst1q_lane_f32(dstr + (49 + i)*nch, b, 3); - vst1q_lane_f32(dstl + (47 - i)*nch, a, 2); - vst1q_lane_f32(dstl + (49 + i)*nch, b, 2); -#endif -#endif /* DR_MP3_FLOAT_OUTPUT */ - } - } else -#endif -#ifdef DR_MP3_ONLY_SIMD - {} /* for HAVE_SIMD=1, MINIMP3_ONLY_SIMD=1 case we do not need non-intrinsic "else" branch */ -#else - for (i = 14; i >= 0; i--) - { -#define DRMP3_LOAD(k) float w0 = *w++; float w1 = *w++; float *vz = &zlin[4*i - k*64]; float *vy = &zlin[4*i - (15 - k)*64]; -#define DRMP3_S0(k) { int j; DRMP3_LOAD(k); for (j = 0; j < 4; j++) b[j] = vz[j]*w1 + vy[j]*w0, a[j] = vz[j]*w0 - vy[j]*w1; } -#define DRMP3_S1(k) { int j; DRMP3_LOAD(k); for (j = 0; j < 4; j++) b[j] += vz[j]*w1 + vy[j]*w0, a[j] += vz[j]*w0 - vy[j]*w1; } -#define DRMP3_S2(k) { int j; DRMP3_LOAD(k); for (j = 0; j < 4; j++) b[j] += vz[j]*w1 + vy[j]*w0, a[j] += vy[j]*w1 - vz[j]*w0; } - float a[4], b[4]; - - zlin[4*i] = xl[18*(31 - i)]; - zlin[4*i + 1] = xr[18*(31 - i)]; - zlin[4*i + 2] = xl[1 + 18*(31 - i)]; - zlin[4*i + 3] = xr[1 + 18*(31 - i)]; - zlin[4*(i + 16)] = xl[1 + 18*(1 + i)]; - zlin[4*(i + 16) + 1] = xr[1 + 18*(1 + i)]; - zlin[4*(i - 16) + 2] = xl[18*(1 + i)]; - zlin[4*(i - 16) + 3] = xr[18*(1 + i)]; - - DRMP3_S0(0) DRMP3_S2(1) DRMP3_S1(2) DRMP3_S2(3) DRMP3_S1(4) DRMP3_S2(5) DRMP3_S1(6) DRMP3_S2(7) - - dstr[(15 - i)*nch] = drmp3d_scale_pcm(a[1]); - dstr[(17 + i)*nch] = drmp3d_scale_pcm(b[1]); - dstl[(15 - i)*nch] = drmp3d_scale_pcm(a[0]); - dstl[(17 + i)*nch] = drmp3d_scale_pcm(b[0]); - dstr[(47 - i)*nch] = drmp3d_scale_pcm(a[3]); - dstr[(49 + i)*nch] = drmp3d_scale_pcm(b[3]); - dstl[(47 - i)*nch] = drmp3d_scale_pcm(a[2]); - dstl[(49 + i)*nch] = drmp3d_scale_pcm(b[2]); - } -#endif -} - -static void drmp3d_synth_granule(float *qmf_state, float *grbuf, int nbands, int nch, drmp3d_sample_t *pcm, float *lins) -{ - int i; - for (i = 0; i < nch; i++) - { - drmp3d_DCT_II(grbuf + 576*i, nbands); - } - - DRMP3_COPY_MEMORY(lins, qmf_state, sizeof(float)*15*64); - - for (i = 0; i < nbands; i += 2) - { - drmp3d_synth(grbuf + i, pcm + 32*nch*i, nch, lins + i*64); - } -#ifndef DR_MP3_NONSTANDARD_BUT_LOGICAL - if (nch == 1) - { - for (i = 0; i < 15*64; i += 2) - { - qmf_state[i] = lins[nbands*64 + i]; - } - } else -#endif - { - DRMP3_COPY_MEMORY(qmf_state, lins + nbands*64, sizeof(float)*15*64); - } -} - -static int drmp3d_match_frame(const drmp3_uint8 *hdr, int mp3_bytes, int frame_bytes) -{ - int i, nmatch; - for (i = 0, nmatch = 0; nmatch < DRMP3_MAX_FRAME_SYNC_MATCHES; nmatch++) - { - i += drmp3_hdr_frame_bytes(hdr + i, frame_bytes) + drmp3_hdr_padding(hdr + i); - if (i + DRMP3_HDR_SIZE > mp3_bytes) - return nmatch > 0; - if (!drmp3_hdr_compare(hdr, hdr + i)) - return 0; - } - return 1; -} - -static int drmp3d_find_frame(const drmp3_uint8 *mp3, int mp3_bytes, int *free_format_bytes, int *ptr_frame_bytes) -{ - int i, k; - for (i = 0; i < mp3_bytes - DRMP3_HDR_SIZE; i++, mp3++) - { - if (drmp3_hdr_valid(mp3)) - { - int frame_bytes = drmp3_hdr_frame_bytes(mp3, *free_format_bytes); - int frame_and_padding = frame_bytes + drmp3_hdr_padding(mp3); - - for (k = DRMP3_HDR_SIZE; !frame_bytes && k < DRMP3_MAX_FREE_FORMAT_FRAME_SIZE && i + 2*k < mp3_bytes - DRMP3_HDR_SIZE; k++) - { - if (drmp3_hdr_compare(mp3, mp3 + k)) - { - int fb = k - drmp3_hdr_padding(mp3); - int nextfb = fb + drmp3_hdr_padding(mp3 + k); - if (i + k + nextfb + DRMP3_HDR_SIZE > mp3_bytes || !drmp3_hdr_compare(mp3, mp3 + k + nextfb)) - continue; - frame_and_padding = k; - frame_bytes = fb; - *free_format_bytes = fb; - } - } - - if ((frame_bytes && i + frame_and_padding <= mp3_bytes && - drmp3d_match_frame(mp3, mp3_bytes - i, frame_bytes)) || - (!i && frame_and_padding == mp3_bytes)) - { - *ptr_frame_bytes = frame_and_padding; - return i; - } - *free_format_bytes = 0; - } - } - *ptr_frame_bytes = 0; - return mp3_bytes; -} - -DRMP3_API void drmp3dec_init(drmp3dec *dec) -{ - dec->header[0] = 0; -} - -DRMP3_API int drmp3dec_decode_frame(drmp3dec *dec, const drmp3_uint8 *mp3, int mp3_bytes, void *pcm, drmp3dec_frame_info *info) -{ - int i = 0, igr, frame_size = 0, success = 1; - const drmp3_uint8 *hdr; - drmp3_bs bs_frame[1]; - drmp3dec_scratch scratch; - - if (mp3_bytes > 4 && dec->header[0] == 0xff && drmp3_hdr_compare(dec->header, mp3)) - { - frame_size = drmp3_hdr_frame_bytes(mp3, dec->free_format_bytes) + drmp3_hdr_padding(mp3); - if (frame_size != mp3_bytes && (frame_size + DRMP3_HDR_SIZE > mp3_bytes || !drmp3_hdr_compare(mp3, mp3 + frame_size))) - { - frame_size = 0; - } - } - if (!frame_size) - { - DRMP3_ZERO_MEMORY(dec, sizeof(drmp3dec)); - i = drmp3d_find_frame(mp3, mp3_bytes, &dec->free_format_bytes, &frame_size); - if (!frame_size || i + frame_size > mp3_bytes) - { - info->frame_bytes = i; - return 0; - } - } - - hdr = mp3 + i; - DRMP3_COPY_MEMORY(dec->header, hdr, DRMP3_HDR_SIZE); - info->frame_bytes = i + frame_size; - info->channels = DRMP3_HDR_IS_MONO(hdr) ? 1 : 2; - info->hz = drmp3_hdr_sample_rate_hz(hdr); - info->layer = 4 - DRMP3_HDR_GET_LAYER(hdr); - info->bitrate_kbps = drmp3_hdr_bitrate_kbps(hdr); - - drmp3_bs_init(bs_frame, hdr + DRMP3_HDR_SIZE, frame_size - DRMP3_HDR_SIZE); - if (DRMP3_HDR_IS_CRC(hdr)) - { - drmp3_bs_get_bits(bs_frame, 16); - } - - if (info->layer == 3) - { - int main_data_begin = drmp3_L3_read_side_info(bs_frame, scratch.gr_info, hdr); - if (main_data_begin < 0 || bs_frame->pos > bs_frame->limit) - { - drmp3dec_init(dec); - return 0; - } - success = drmp3_L3_restore_reservoir(dec, bs_frame, &scratch, main_data_begin); - if (success && pcm != NULL) - { - for (igr = 0; igr < (DRMP3_HDR_TEST_MPEG1(hdr) ? 2 : 1); igr++, pcm = DRMP3_OFFSET_PTR(pcm, sizeof(drmp3d_sample_t)*576*info->channels)) - { - DRMP3_ZERO_MEMORY(scratch.grbuf[0], 576*2*sizeof(float)); - drmp3_L3_decode(dec, &scratch, scratch.gr_info + igr*info->channels, info->channels); - drmp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 18, info->channels, (drmp3d_sample_t*)pcm, scratch.syn[0]); - } - } - drmp3_L3_save_reservoir(dec, &scratch); - } else - { -#ifdef DR_MP3_ONLY_MP3 - return 0; -#else - drmp3_L12_scale_info sci[1]; - - if (pcm == NULL) { - return drmp3_hdr_frame_samples(hdr); - } - - drmp3_L12_read_scale_info(hdr, bs_frame, sci); - - DRMP3_ZERO_MEMORY(scratch.grbuf[0], 576*2*sizeof(float)); - for (i = 0, igr = 0; igr < 3; igr++) - { - if (12 == (i += drmp3_L12_dequantize_granule(scratch.grbuf[0] + i, bs_frame, sci, info->layer | 1))) - { - i = 0; - drmp3_L12_apply_scf_384(sci, sci->scf + igr, scratch.grbuf[0]); - drmp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 12, info->channels, (drmp3d_sample_t*)pcm, scratch.syn[0]); - DRMP3_ZERO_MEMORY(scratch.grbuf[0], 576*2*sizeof(float)); - pcm = DRMP3_OFFSET_PTR(pcm, sizeof(drmp3d_sample_t)*384*info->channels); - } - if (bs_frame->pos > bs_frame->limit) - { - drmp3dec_init(dec); - return 0; - } - } -#endif - } - - return success*drmp3_hdr_frame_samples(dec->header); -} - -DRMP3_API void drmp3dec_f32_to_s16(const float *in, drmp3_int16 *out, size_t num_samples) -{ - size_t i = 0; -#if DRMP3_HAVE_SIMD - size_t aligned_count = num_samples & ~7; - for(; i < aligned_count; i+=8) - { - drmp3_f4 scale = DRMP3_VSET(32768.0f); - drmp3_f4 a = DRMP3_VMUL(DRMP3_VLD(&in[i ]), scale); - drmp3_f4 b = DRMP3_VMUL(DRMP3_VLD(&in[i+4]), scale); -#if DRMP3_HAVE_SSE - drmp3_f4 s16max = DRMP3_VSET( 32767.0f); - drmp3_f4 s16min = DRMP3_VSET(-32768.0f); - __m128i pcm8 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(a, s16max), s16min)), - _mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(b, s16max), s16min))); - out[i ] = (drmp3_int16)_mm_extract_epi16(pcm8, 0); - out[i+1] = (drmp3_int16)_mm_extract_epi16(pcm8, 1); - out[i+2] = (drmp3_int16)_mm_extract_epi16(pcm8, 2); - out[i+3] = (drmp3_int16)_mm_extract_epi16(pcm8, 3); - out[i+4] = (drmp3_int16)_mm_extract_epi16(pcm8, 4); - out[i+5] = (drmp3_int16)_mm_extract_epi16(pcm8, 5); - out[i+6] = (drmp3_int16)_mm_extract_epi16(pcm8, 6); - out[i+7] = (drmp3_int16)_mm_extract_epi16(pcm8, 7); -#else - int16x4_t pcma, pcmb; - a = DRMP3_VADD(a, DRMP3_VSET(0.5f)); - b = DRMP3_VADD(b, DRMP3_VSET(0.5f)); - pcma = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(a), vreinterpretq_s32_u32(vcltq_f32(a, DRMP3_VSET(0))))); - pcmb = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(b), vreinterpretq_s32_u32(vcltq_f32(b, DRMP3_VSET(0))))); - vst1_lane_s16(out+i , pcma, 0); - vst1_lane_s16(out+i+1, pcma, 1); - vst1_lane_s16(out+i+2, pcma, 2); - vst1_lane_s16(out+i+3, pcma, 3); - vst1_lane_s16(out+i+4, pcmb, 0); - vst1_lane_s16(out+i+5, pcmb, 1); - vst1_lane_s16(out+i+6, pcmb, 2); - vst1_lane_s16(out+i+7, pcmb, 3); -#endif - } -#endif - for(; i < num_samples; i++) - { - float sample = in[i] * 32768.0f; - if (sample >= 32766.5) - out[i] = (drmp3_int16) 32767; - else if (sample <= -32767.5) - out[i] = (drmp3_int16)-32768; - else - { - short s = (drmp3_int16)(sample + .5f); - s -= (s < 0); /* away from zero, to be compliant */ - out[i] = s; - } - } -} - - - -/************************************************************************************************************************************************************ - - Main Public API - - ************************************************************************************************************************************************************/ -/* SIZE_MAX */ -#if defined(SIZE_MAX) - #define DRMP3_SIZE_MAX SIZE_MAX -#else - #if defined(_WIN64) || defined(_LP64) || defined(__LP64__) - #define DRMP3_SIZE_MAX ((drmp3_uint64)0xFFFFFFFFFFFFFFFF) - #else - #define DRMP3_SIZE_MAX 0xFFFFFFFF - #endif -#endif -/* End SIZE_MAX */ - -/* Options. */ -#ifndef DRMP3_SEEK_LEADING_MP3_FRAMES -#define DRMP3_SEEK_LEADING_MP3_FRAMES 2 -#endif - -#define DRMP3_MIN_DATA_CHUNK_SIZE 16384 - -/* The size in bytes of each chunk of data to read from the MP3 stream. minimp3 recommends at least 16K, but in an attempt to reduce data movement I'm making this slightly larger. */ -#ifndef DRMP3_DATA_CHUNK_SIZE -#define DRMP3_DATA_CHUNK_SIZE (DRMP3_MIN_DATA_CHUNK_SIZE*4) -#endif - - -#define DRMP3_COUNTOF(x) (sizeof(x) / sizeof(x[0])) -#define DRMP3_CLAMP(x, lo, hi) (DRMP3_MAX(lo, DRMP3_MIN(x, hi))) - -#ifndef DRMP3_PI_D -#define DRMP3_PI_D 3.14159265358979323846264 -#endif - -#define DRMP3_DEFAULT_RESAMPLER_LPF_ORDER 2 - -static DRMP3_INLINE float drmp3_mix_f32(float x, float y, float a) -{ - return x*(1-a) + y*a; -} -static DRMP3_INLINE float drmp3_mix_f32_fast(float x, float y, float a) -{ - float r0 = (y - x); - float r1 = r0*a; - return x + r1; - /*return x + (y - x)*a;*/ -} - - -/* -Greatest common factor using Euclid's algorithm iteratively. -*/ -static DRMP3_INLINE drmp3_uint32 drmp3_gcf_u32(drmp3_uint32 a, drmp3_uint32 b) -{ - for (;;) { - if (b == 0) { - break; - } else { - drmp3_uint32 t = a; - a = b; - b = t % a; - } - } - - return a; -} - - -static void* drmp3__malloc_default(size_t sz, void* pUserData) -{ - (void)pUserData; - return DRMP3_MALLOC(sz); -} - -static void* drmp3__realloc_default(void* p, size_t sz, void* pUserData) -{ - (void)pUserData; - return DRMP3_REALLOC(p, sz); -} - -static void drmp3__free_default(void* p, void* pUserData) -{ - (void)pUserData; - DRMP3_FREE(p); -} - - -static void* drmp3__malloc_from_callbacks(size_t sz, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks == NULL) { - return NULL; - } - - if (pAllocationCallbacks->onMalloc != NULL) { - return pAllocationCallbacks->onMalloc(sz, pAllocationCallbacks->pUserData); - } - - /* Try using realloc(). */ - if (pAllocationCallbacks->onRealloc != NULL) { - return pAllocationCallbacks->onRealloc(NULL, sz, pAllocationCallbacks->pUserData); - } - - return NULL; -} - -static void* drmp3__realloc_from_callbacks(void* p, size_t szNew, size_t szOld, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks == NULL) { - return NULL; - } - - if (pAllocationCallbacks->onRealloc != NULL) { - return pAllocationCallbacks->onRealloc(p, szNew, pAllocationCallbacks->pUserData); - } - - /* Try emulating realloc() in terms of malloc()/free(). */ - if (pAllocationCallbacks->onMalloc != NULL && pAllocationCallbacks->onFree != NULL) { - void* p2; - - p2 = pAllocationCallbacks->onMalloc(szNew, pAllocationCallbacks->pUserData); - if (p2 == NULL) { - return NULL; - } - - if (p != NULL) { - DRMP3_COPY_MEMORY(p2, p, szOld); - pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData); - } - - return p2; - } - - return NULL; -} - -static void drmp3__free_from_callbacks(void* p, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (p == NULL || pAllocationCallbacks == NULL) { - return; - } - - if (pAllocationCallbacks->onFree != NULL) { - pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData); - } -} - - -static drmp3_allocation_callbacks drmp3_copy_allocation_callbacks_or_defaults(const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks != NULL) { - /* Copy. */ - return *pAllocationCallbacks; - } else { - /* Defaults. */ - drmp3_allocation_callbacks allocationCallbacks; - allocationCallbacks.pUserData = NULL; - allocationCallbacks.onMalloc = drmp3__malloc_default; - allocationCallbacks.onRealloc = drmp3__realloc_default; - allocationCallbacks.onFree = drmp3__free_default; - return allocationCallbacks; - } -} - - - -static size_t drmp3__on_read(drmp3* pMP3, void* pBufferOut, size_t bytesToRead) -{ - size_t bytesRead = pMP3->onRead(pMP3->pUserData, pBufferOut, bytesToRead); - pMP3->streamCursor += bytesRead; - return bytesRead; -} - -static drmp3_bool32 drmp3__on_seek(drmp3* pMP3, int offset, drmp3_seek_origin origin) -{ - DRMP3_ASSERT(offset >= 0); - - if (!pMP3->onSeek(pMP3->pUserData, offset, origin)) { - return DRMP3_FALSE; - } - - if (origin == drmp3_seek_origin_start) { - pMP3->streamCursor = (drmp3_uint64)offset; - } else { - pMP3->streamCursor += offset; - } - - return DRMP3_TRUE; -} - -static drmp3_bool32 drmp3__on_seek_64(drmp3* pMP3, drmp3_uint64 offset, drmp3_seek_origin origin) -{ - if (offset <= 0x7FFFFFFF) { - return drmp3__on_seek(pMP3, (int)offset, origin); - } - - - /* Getting here "offset" is too large for a 32-bit integer. We just keep seeking forward until we hit the offset. */ - if (!drmp3__on_seek(pMP3, 0x7FFFFFFF, drmp3_seek_origin_start)) { - return DRMP3_FALSE; - } - - offset -= 0x7FFFFFFF; - while (offset > 0) { - if (offset <= 0x7FFFFFFF) { - if (!drmp3__on_seek(pMP3, (int)offset, drmp3_seek_origin_current)) { - return DRMP3_FALSE; - } - offset = 0; - } else { - if (!drmp3__on_seek(pMP3, 0x7FFFFFFF, drmp3_seek_origin_current)) { - return DRMP3_FALSE; - } - offset -= 0x7FFFFFFF; - } - } - - return DRMP3_TRUE; -} - - -static drmp3_uint32 drmp3_decode_next_frame_ex__callbacks(drmp3* pMP3, drmp3d_sample_t* pPCMFrames) -{ - drmp3_uint32 pcmFramesRead = 0; - - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->onRead != NULL); - - if (pMP3->atEnd) { - return 0; - } - - for (;;) { - drmp3dec_frame_info info; - - /* minimp3 recommends doing data submission in chunks of at least 16K. If we don't have at least 16K bytes available, get more. */ - if (pMP3->dataSize < DRMP3_MIN_DATA_CHUNK_SIZE) { - size_t bytesRead; - - /* First we need to move the data down. */ - if (pMP3->pData != NULL) { - DRMP3_MOVE_MEMORY(pMP3->pData, pMP3->pData + pMP3->dataConsumed, pMP3->dataSize); - } - - pMP3->dataConsumed = 0; - - if (pMP3->dataCapacity < DRMP3_DATA_CHUNK_SIZE) { - drmp3_uint8* pNewData; - size_t newDataCap; - - newDataCap = DRMP3_DATA_CHUNK_SIZE; - - pNewData = (drmp3_uint8*)drmp3__realloc_from_callbacks(pMP3->pData, newDataCap, pMP3->dataCapacity, &pMP3->allocationCallbacks); - if (pNewData == NULL) { - return 0; /* Out of memory. */ - } - - pMP3->pData = pNewData; - pMP3->dataCapacity = newDataCap; - } - - bytesRead = drmp3__on_read(pMP3, pMP3->pData + pMP3->dataSize, (pMP3->dataCapacity - pMP3->dataSize)); - if (bytesRead == 0) { - if (pMP3->dataSize == 0) { - pMP3->atEnd = DRMP3_TRUE; - return 0; /* No data. */ - } - } - - pMP3->dataSize += bytesRead; - } - - if (pMP3->dataSize > INT_MAX) { - pMP3->atEnd = DRMP3_TRUE; - return 0; /* File too big. */ - } - - DRMP3_ASSERT(pMP3->pData != NULL); - DRMP3_ASSERT(pMP3->dataCapacity > 0); - - /* Do a runtime check here to try silencing a false-positive from clang-analyzer. */ - if (pMP3->pData == NULL) { - return 0; - } - - pcmFramesRead = drmp3dec_decode_frame(&pMP3->decoder, pMP3->pData + pMP3->dataConsumed, (int)pMP3->dataSize, pPCMFrames, &info); /* <-- Safe size_t -> int conversion thanks to the check above. */ - - /* Consume the data. */ - if (info.frame_bytes > 0) { - pMP3->dataConsumed += (size_t)info.frame_bytes; - pMP3->dataSize -= (size_t)info.frame_bytes; - } - - /* pcmFramesRead will be equal to 0 if decoding failed. If it is zero and info.frame_bytes > 0 then we have successfully decoded the frame. */ - if (pcmFramesRead > 0) { - pcmFramesRead = drmp3_hdr_frame_samples(pMP3->decoder.header); - pMP3->pcmFramesConsumedInMP3Frame = 0; - pMP3->pcmFramesRemainingInMP3Frame = pcmFramesRead; - pMP3->mp3FrameChannels = info.channels; - pMP3->mp3FrameSampleRate = info.hz; - break; - } else if (info.frame_bytes == 0) { - /* Need more data. minimp3 recommends doing data submission in 16K chunks. */ - size_t bytesRead; - - /* First we need to move the data down. */ - DRMP3_MOVE_MEMORY(pMP3->pData, pMP3->pData + pMP3->dataConsumed, pMP3->dataSize); - pMP3->dataConsumed = 0; - - if (pMP3->dataCapacity == pMP3->dataSize) { - /* No room. Expand. */ - drmp3_uint8* pNewData; - size_t newDataCap; - - newDataCap = pMP3->dataCapacity + DRMP3_DATA_CHUNK_SIZE; - - pNewData = (drmp3_uint8*)drmp3__realloc_from_callbacks(pMP3->pData, newDataCap, pMP3->dataCapacity, &pMP3->allocationCallbacks); - if (pNewData == NULL) { - return 0; /* Out of memory. */ - } - - pMP3->pData = pNewData; - pMP3->dataCapacity = newDataCap; - } - - /* Fill in a chunk. */ - bytesRead = drmp3__on_read(pMP3, pMP3->pData + pMP3->dataSize, (pMP3->dataCapacity - pMP3->dataSize)); - if (bytesRead == 0) { - pMP3->atEnd = DRMP3_TRUE; - return 0; /* Error reading more data. */ - } - - pMP3->dataSize += bytesRead; - } - }; - - return pcmFramesRead; -} - -static drmp3_uint32 drmp3_decode_next_frame_ex__memory(drmp3* pMP3, drmp3d_sample_t* pPCMFrames) -{ - drmp3_uint32 pcmFramesRead = 0; - drmp3dec_frame_info info; - - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->memory.pData != NULL); - - if (pMP3->atEnd) { - return 0; - } - - for (;;) { - pcmFramesRead = drmp3dec_decode_frame(&pMP3->decoder, pMP3->memory.pData + pMP3->memory.currentReadPos, (int)(pMP3->memory.dataSize - pMP3->memory.currentReadPos), pPCMFrames, &info); - if (pcmFramesRead > 0) { - pcmFramesRead = drmp3_hdr_frame_samples(pMP3->decoder.header); - pMP3->pcmFramesConsumedInMP3Frame = 0; - pMP3->pcmFramesRemainingInMP3Frame = pcmFramesRead; - pMP3->mp3FrameChannels = info.channels; - pMP3->mp3FrameSampleRate = info.hz; - break; - } else if (info.frame_bytes > 0) { - /* No frames were read, but it looks like we skipped past one. Read the next MP3 frame. */ - pMP3->memory.currentReadPos += (size_t)info.frame_bytes; - } else { - /* Nothing at all was read. Abort. */ - break; - } - } - - /* Consume the data. */ - pMP3->memory.currentReadPos += (size_t)info.frame_bytes; - - return pcmFramesRead; -} - -static drmp3_uint32 drmp3_decode_next_frame_ex(drmp3* pMP3, drmp3d_sample_t* pPCMFrames) -{ - if (pMP3->memory.pData != NULL && pMP3->memory.dataSize > 0) { - return drmp3_decode_next_frame_ex__memory(pMP3, pPCMFrames); - } else { - return drmp3_decode_next_frame_ex__callbacks(pMP3, pPCMFrames); - } -} - -static drmp3_uint32 drmp3_decode_next_frame(drmp3* pMP3) -{ - DRMP3_ASSERT(pMP3 != NULL); - return drmp3_decode_next_frame_ex(pMP3, (drmp3d_sample_t*)pMP3->pcmFrames); -} - -#if 0 -static drmp3_uint32 drmp3_seek_next_frame(drmp3* pMP3) -{ - drmp3_uint32 pcmFrameCount; - - DRMP3_ASSERT(pMP3 != NULL); - - pcmFrameCount = drmp3_decode_next_frame_ex(pMP3, NULL); - if (pcmFrameCount == 0) { - return 0; - } - - /* We have essentially just skipped past the frame, so just set the remaining samples to 0. */ - pMP3->currentPCMFrame += pcmFrameCount; - pMP3->pcmFramesConsumedInMP3Frame = pcmFrameCount; - pMP3->pcmFramesRemainingInMP3Frame = 0; - - return pcmFrameCount; -} -#endif - -static drmp3_bool32 drmp3_init_internal(drmp3* pMP3, drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(onRead != NULL); - - /* This function assumes the output object has already been reset to 0. Do not do that here, otherwise things will break. */ - drmp3dec_init(&pMP3->decoder); - - pMP3->onRead = onRead; - pMP3->onSeek = onSeek; - pMP3->pUserData = pUserData; - pMP3->allocationCallbacks = drmp3_copy_allocation_callbacks_or_defaults(pAllocationCallbacks); - - if (pMP3->allocationCallbacks.onFree == NULL || (pMP3->allocationCallbacks.onMalloc == NULL && pMP3->allocationCallbacks.onRealloc == NULL)) { - return DRMP3_FALSE; /* Invalid allocation callbacks. */ - } - - /* Decode the first frame to confirm that it is indeed a valid MP3 stream. */ - if (drmp3_decode_next_frame(pMP3) == 0) { - drmp3__free_from_callbacks(pMP3->pData, &pMP3->allocationCallbacks); /* The call above may have allocated memory. Need to make sure it's freed before aborting. */ - return DRMP3_FALSE; /* Not a valid MP3 stream. */ - } - - pMP3->channels = pMP3->mp3FrameChannels; - pMP3->sampleRate = pMP3->mp3FrameSampleRate; - - return DRMP3_TRUE; -} - -DRMP3_API drmp3_bool32 drmp3_init(drmp3* pMP3, drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pMP3 == NULL || onRead == NULL) { - return DRMP3_FALSE; - } - - DRMP3_ZERO_OBJECT(pMP3); - return drmp3_init_internal(pMP3, onRead, onSeek, pUserData, pAllocationCallbacks); -} - - -static size_t drmp3__on_read_memory(void* pUserData, void* pBufferOut, size_t bytesToRead) -{ - drmp3* pMP3 = (drmp3*)pUserData; - size_t bytesRemaining; - - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->memory.dataSize >= pMP3->memory.currentReadPos); - - bytesRemaining = pMP3->memory.dataSize - pMP3->memory.currentReadPos; - if (bytesToRead > bytesRemaining) { - bytesToRead = bytesRemaining; - } - - if (bytesToRead > 0) { - DRMP3_COPY_MEMORY(pBufferOut, pMP3->memory.pData + pMP3->memory.currentReadPos, bytesToRead); - pMP3->memory.currentReadPos += bytesToRead; - } - - return bytesToRead; -} - -static drmp3_bool32 drmp3__on_seek_memory(void* pUserData, int byteOffset, drmp3_seek_origin origin) -{ - drmp3* pMP3 = (drmp3*)pUserData; - - DRMP3_ASSERT(pMP3 != NULL); - - if (origin == drmp3_seek_origin_current) { - if (byteOffset > 0) { - if (pMP3->memory.currentReadPos + byteOffset > pMP3->memory.dataSize) { - byteOffset = (int)(pMP3->memory.dataSize - pMP3->memory.currentReadPos); /* Trying to seek too far forward. */ - } - } else { - if (pMP3->memory.currentReadPos < (size_t)-byteOffset) { - byteOffset = -(int)pMP3->memory.currentReadPos; /* Trying to seek too far backwards. */ - } - } - - /* This will never underflow thanks to the clamps above. */ - pMP3->memory.currentReadPos += byteOffset; - } else { - if ((drmp3_uint32)byteOffset <= pMP3->memory.dataSize) { - pMP3->memory.currentReadPos = byteOffset; - } else { - pMP3->memory.currentReadPos = pMP3->memory.dataSize; /* Trying to seek too far forward. */ - } - } - - return DRMP3_TRUE; -} - -DRMP3_API drmp3_bool32 drmp3_init_memory(drmp3* pMP3, const void* pData, size_t dataSize, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pMP3 == NULL) { - return DRMP3_FALSE; - } - - DRMP3_ZERO_OBJECT(pMP3); - - if (pData == NULL || dataSize == 0) { - return DRMP3_FALSE; - } - - pMP3->memory.pData = (const drmp3_uint8*)pData; - pMP3->memory.dataSize = dataSize; - pMP3->memory.currentReadPos = 0; - - return drmp3_init_internal(pMP3, drmp3__on_read_memory, drmp3__on_seek_memory, pMP3, pAllocationCallbacks); -} - - -#ifndef DR_MP3_NO_STDIO -#include -#include /* For wcslen(), wcsrtombs() */ - -/* Errno */ -/* drmp3_result_from_errno() is only used inside DR_MP3_NO_STDIO for now. Move this out if it's ever used elsewhere. */ -#include -static drmp3_result drmp3_result_from_errno(int e) -{ - switch (e) - { - case 0: return DRMP3_SUCCESS; - #ifdef EPERM - case EPERM: return DRMP3_INVALID_OPERATION; - #endif - #ifdef ENOENT - case ENOENT: return DRMP3_DOES_NOT_EXIST; - #endif - #ifdef ESRCH - case ESRCH: return DRMP3_DOES_NOT_EXIST; - #endif - #ifdef EINTR - case EINTR: return DRMP3_INTERRUPT; - #endif - #ifdef EIO - case EIO: return DRMP3_IO_ERROR; - #endif - #ifdef ENXIO - case ENXIO: return DRMP3_DOES_NOT_EXIST; - #endif - #ifdef E2BIG - case E2BIG: return DRMP3_INVALID_ARGS; - #endif - #ifdef ENOEXEC - case ENOEXEC: return DRMP3_INVALID_FILE; - #endif - #ifdef EBADF - case EBADF: return DRMP3_INVALID_FILE; - #endif - #ifdef ECHILD - case ECHILD: return DRMP3_ERROR; - #endif - #ifdef EAGAIN - case EAGAIN: return DRMP3_UNAVAILABLE; - #endif - #ifdef ENOMEM - case ENOMEM: return DRMP3_OUT_OF_MEMORY; - #endif - #ifdef EACCES - case EACCES: return DRMP3_ACCESS_DENIED; - #endif - #ifdef EFAULT - case EFAULT: return DRMP3_BAD_ADDRESS; - #endif - #ifdef ENOTBLK - case ENOTBLK: return DRMP3_ERROR; - #endif - #ifdef EBUSY - case EBUSY: return DRMP3_BUSY; - #endif - #ifdef EEXIST - case EEXIST: return DRMP3_ALREADY_EXISTS; - #endif - #ifdef EXDEV - case EXDEV: return DRMP3_ERROR; - #endif - #ifdef ENODEV - case ENODEV: return DRMP3_DOES_NOT_EXIST; - #endif - #ifdef ENOTDIR - case ENOTDIR: return DRMP3_NOT_DIRECTORY; - #endif - #ifdef EISDIR - case EISDIR: return DRMP3_IS_DIRECTORY; - #endif - #ifdef EINVAL - case EINVAL: return DRMP3_INVALID_ARGS; - #endif - #ifdef ENFILE - case ENFILE: return DRMP3_TOO_MANY_OPEN_FILES; - #endif - #ifdef EMFILE - case EMFILE: return DRMP3_TOO_MANY_OPEN_FILES; - #endif - #ifdef ENOTTY - case ENOTTY: return DRMP3_INVALID_OPERATION; - #endif - #ifdef ETXTBSY - case ETXTBSY: return DRMP3_BUSY; - #endif - #ifdef EFBIG - case EFBIG: return DRMP3_TOO_BIG; - #endif - #ifdef ENOSPC - case ENOSPC: return DRMP3_NO_SPACE; - #endif - #ifdef ESPIPE - case ESPIPE: return DRMP3_BAD_SEEK; - #endif - #ifdef EROFS - case EROFS: return DRMP3_ACCESS_DENIED; - #endif - #ifdef EMLINK - case EMLINK: return DRMP3_TOO_MANY_LINKS; - #endif - #ifdef EPIPE - case EPIPE: return DRMP3_BAD_PIPE; - #endif - #ifdef EDOM - case EDOM: return DRMP3_OUT_OF_RANGE; - #endif - #ifdef ERANGE - case ERANGE: return DRMP3_OUT_OF_RANGE; - #endif - #ifdef EDEADLK - case EDEADLK: return DRMP3_DEADLOCK; - #endif - #ifdef ENAMETOOLONG - case ENAMETOOLONG: return DRMP3_PATH_TOO_LONG; - #endif - #ifdef ENOLCK - case ENOLCK: return DRMP3_ERROR; - #endif - #ifdef ENOSYS - case ENOSYS: return DRMP3_NOT_IMPLEMENTED; - #endif - #ifdef ENOTEMPTY - case ENOTEMPTY: return DRMP3_DIRECTORY_NOT_EMPTY; - #endif - #ifdef ELOOP - case ELOOP: return DRMP3_TOO_MANY_LINKS; - #endif - #ifdef ENOMSG - case ENOMSG: return DRMP3_NO_MESSAGE; - #endif - #ifdef EIDRM - case EIDRM: return DRMP3_ERROR; - #endif - #ifdef ECHRNG - case ECHRNG: return DRMP3_ERROR; - #endif - #ifdef EL2NSYNC - case EL2NSYNC: return DRMP3_ERROR; - #endif - #ifdef EL3HLT - case EL3HLT: return DRMP3_ERROR; - #endif - #ifdef EL3RST - case EL3RST: return DRMP3_ERROR; - #endif - #ifdef ELNRNG - case ELNRNG: return DRMP3_OUT_OF_RANGE; - #endif - #ifdef EUNATCH - case EUNATCH: return DRMP3_ERROR; - #endif - #ifdef ENOCSI - case ENOCSI: return DRMP3_ERROR; - #endif - #ifdef EL2HLT - case EL2HLT: return DRMP3_ERROR; - #endif - #ifdef EBADE - case EBADE: return DRMP3_ERROR; - #endif - #ifdef EBADR - case EBADR: return DRMP3_ERROR; - #endif - #ifdef EXFULL - case EXFULL: return DRMP3_ERROR; - #endif - #ifdef ENOANO - case ENOANO: return DRMP3_ERROR; - #endif - #ifdef EBADRQC - case EBADRQC: return DRMP3_ERROR; - #endif - #ifdef EBADSLT - case EBADSLT: return DRMP3_ERROR; - #endif - #ifdef EBFONT - case EBFONT: return DRMP3_INVALID_FILE; - #endif - #ifdef ENOSTR - case ENOSTR: return DRMP3_ERROR; - #endif - #ifdef ENODATA - case ENODATA: return DRMP3_NO_DATA_AVAILABLE; - #endif - #ifdef ETIME - case ETIME: return DRMP3_TIMEOUT; - #endif - #ifdef ENOSR - case ENOSR: return DRMP3_NO_DATA_AVAILABLE; - #endif - #ifdef ENONET - case ENONET: return DRMP3_NO_NETWORK; - #endif - #ifdef ENOPKG - case ENOPKG: return DRMP3_ERROR; - #endif - #ifdef EREMOTE - case EREMOTE: return DRMP3_ERROR; - #endif - #ifdef ENOLINK - case ENOLINK: return DRMP3_ERROR; - #endif - #ifdef EADV - case EADV: return DRMP3_ERROR; - #endif - #ifdef ESRMNT - case ESRMNT: return DRMP3_ERROR; - #endif - #ifdef ECOMM - case ECOMM: return DRMP3_ERROR; - #endif - #ifdef EPROTO - case EPROTO: return DRMP3_ERROR; - #endif - #ifdef EMULTIHOP - case EMULTIHOP: return DRMP3_ERROR; - #endif - #ifdef EDOTDOT - case EDOTDOT: return DRMP3_ERROR; - #endif - #ifdef EBADMSG - case EBADMSG: return DRMP3_BAD_MESSAGE; - #endif - #ifdef EOVERFLOW - case EOVERFLOW: return DRMP3_TOO_BIG; - #endif - #ifdef ENOTUNIQ - case ENOTUNIQ: return DRMP3_NOT_UNIQUE; - #endif - #ifdef EBADFD - case EBADFD: return DRMP3_ERROR; - #endif - #ifdef EREMCHG - case EREMCHG: return DRMP3_ERROR; - #endif - #ifdef ELIBACC - case ELIBACC: return DRMP3_ACCESS_DENIED; - #endif - #ifdef ELIBBAD - case ELIBBAD: return DRMP3_INVALID_FILE; - #endif - #ifdef ELIBSCN - case ELIBSCN: return DRMP3_INVALID_FILE; - #endif - #ifdef ELIBMAX - case ELIBMAX: return DRMP3_ERROR; - #endif - #ifdef ELIBEXEC - case ELIBEXEC: return DRMP3_ERROR; - #endif - #ifdef EILSEQ - case EILSEQ: return DRMP3_INVALID_DATA; - #endif - #ifdef ERESTART - case ERESTART: return DRMP3_ERROR; - #endif - #ifdef ESTRPIPE - case ESTRPIPE: return DRMP3_ERROR; - #endif - #ifdef EUSERS - case EUSERS: return DRMP3_ERROR; - #endif - #ifdef ENOTSOCK - case ENOTSOCK: return DRMP3_NOT_SOCKET; - #endif - #ifdef EDESTADDRREQ - case EDESTADDRREQ: return DRMP3_NO_ADDRESS; - #endif - #ifdef EMSGSIZE - case EMSGSIZE: return DRMP3_TOO_BIG; - #endif - #ifdef EPROTOTYPE - case EPROTOTYPE: return DRMP3_BAD_PROTOCOL; - #endif - #ifdef ENOPROTOOPT - case ENOPROTOOPT: return DRMP3_PROTOCOL_UNAVAILABLE; - #endif - #ifdef EPROTONOSUPPORT - case EPROTONOSUPPORT: return DRMP3_PROTOCOL_NOT_SUPPORTED; - #endif - #ifdef ESOCKTNOSUPPORT - case ESOCKTNOSUPPORT: return DRMP3_SOCKET_NOT_SUPPORTED; - #endif - #ifdef EOPNOTSUPP - case EOPNOTSUPP: return DRMP3_INVALID_OPERATION; - #endif - #ifdef EPFNOSUPPORT - case EPFNOSUPPORT: return DRMP3_PROTOCOL_FAMILY_NOT_SUPPORTED; - #endif - #ifdef EAFNOSUPPORT - case EAFNOSUPPORT: return DRMP3_ADDRESS_FAMILY_NOT_SUPPORTED; - #endif - #ifdef EADDRINUSE - case EADDRINUSE: return DRMP3_ALREADY_IN_USE; - #endif - #ifdef EADDRNOTAVAIL - case EADDRNOTAVAIL: return DRMP3_ERROR; - #endif - #ifdef ENETDOWN - case ENETDOWN: return DRMP3_NO_NETWORK; - #endif - #ifdef ENETUNREACH - case ENETUNREACH: return DRMP3_NO_NETWORK; - #endif - #ifdef ENETRESET - case ENETRESET: return DRMP3_NO_NETWORK; - #endif - #ifdef ECONNABORTED - case ECONNABORTED: return DRMP3_NO_NETWORK; - #endif - #ifdef ECONNRESET - case ECONNRESET: return DRMP3_CONNECTION_RESET; - #endif - #ifdef ENOBUFS - case ENOBUFS: return DRMP3_NO_SPACE; - #endif - #ifdef EISCONN - case EISCONN: return DRMP3_ALREADY_CONNECTED; - #endif - #ifdef ENOTCONN - case ENOTCONN: return DRMP3_NOT_CONNECTED; - #endif - #ifdef ESHUTDOWN - case ESHUTDOWN: return DRMP3_ERROR; - #endif - #ifdef ETOOMANYREFS - case ETOOMANYREFS: return DRMP3_ERROR; - #endif - #ifdef ETIMEDOUT - case ETIMEDOUT: return DRMP3_TIMEOUT; - #endif - #ifdef ECONNREFUSED - case ECONNREFUSED: return DRMP3_CONNECTION_REFUSED; - #endif - #ifdef EHOSTDOWN - case EHOSTDOWN: return DRMP3_NO_HOST; - #endif - #ifdef EHOSTUNREACH - case EHOSTUNREACH: return DRMP3_NO_HOST; - #endif - #ifdef EALREADY - case EALREADY: return DRMP3_IN_PROGRESS; - #endif - #ifdef EINPROGRESS - case EINPROGRESS: return DRMP3_IN_PROGRESS; - #endif - #ifdef ESTALE - case ESTALE: return DRMP3_INVALID_FILE; - #endif - #ifdef EUCLEAN - case EUCLEAN: return DRMP3_ERROR; - #endif - #ifdef ENOTNAM - case ENOTNAM: return DRMP3_ERROR; - #endif - #ifdef ENAVAIL - case ENAVAIL: return DRMP3_ERROR; - #endif - #ifdef EISNAM - case EISNAM: return DRMP3_ERROR; - #endif - #ifdef EREMOTEIO - case EREMOTEIO: return DRMP3_IO_ERROR; - #endif - #ifdef EDQUOT - case EDQUOT: return DRMP3_NO_SPACE; - #endif - #ifdef ENOMEDIUM - case ENOMEDIUM: return DRMP3_DOES_NOT_EXIST; - #endif - #ifdef EMEDIUMTYPE - case EMEDIUMTYPE: return DRMP3_ERROR; - #endif - #ifdef ECANCELED - case ECANCELED: return DRMP3_CANCELLED; - #endif - #ifdef ENOKEY - case ENOKEY: return DRMP3_ERROR; - #endif - #ifdef EKEYEXPIRED - case EKEYEXPIRED: return DRMP3_ERROR; - #endif - #ifdef EKEYREVOKED - case EKEYREVOKED: return DRMP3_ERROR; - #endif - #ifdef EKEYREJECTED - case EKEYREJECTED: return DRMP3_ERROR; - #endif - #ifdef EOWNERDEAD - case EOWNERDEAD: return DRMP3_ERROR; - #endif - #ifdef ENOTRECOVERABLE - case ENOTRECOVERABLE: return DRMP3_ERROR; - #endif - #ifdef ERFKILL - case ERFKILL: return DRMP3_ERROR; - #endif - #ifdef EHWPOISON - case EHWPOISON: return DRMP3_ERROR; - #endif - default: return DRMP3_ERROR; - } -} -/* End Errno */ - -/* fopen */ -static drmp3_result drmp3_fopen(FILE** ppFile, const char* pFilePath, const char* pOpenMode) -{ -#if defined(_MSC_VER) && _MSC_VER >= 1400 - errno_t err; -#endif - - if (ppFile != NULL) { - *ppFile = NULL; /* Safety. */ - } - - if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) { - return DRMP3_INVALID_ARGS; - } - -#if defined(_MSC_VER) && _MSC_VER >= 1400 - err = fopen_s(ppFile, pFilePath, pOpenMode); - if (err != 0) { - return drmp3_result_from_errno(err); - } -#else -#if defined(_WIN32) || defined(__APPLE__) - *ppFile = fopen(pFilePath, pOpenMode); -#else - #if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64 && defined(_LARGEFILE64_SOURCE) - *ppFile = fopen64(pFilePath, pOpenMode); - #else - *ppFile = fopen(pFilePath, pOpenMode); - #endif -#endif - if (*ppFile == NULL) { - drmp3_result result = drmp3_result_from_errno(errno); - if (result == DRMP3_SUCCESS) { - result = DRMP3_ERROR; /* Just a safety check to make sure we never ever return success when pFile == NULL. */ - } - - return result; - } -#endif - - return DRMP3_SUCCESS; -} - -/* -_wfopen() isn't always available in all compilation environments. - - * Windows only. - * MSVC seems to support it universally as far back as VC6 from what I can tell (haven't checked further back). - * MinGW-64 (both 32- and 64-bit) seems to support it. - * MinGW wraps it in !defined(__STRICT_ANSI__). - * OpenWatcom wraps it in !defined(_NO_EXT_KEYS). - -This can be reviewed as compatibility issues arise. The preference is to use _wfopen_s() and _wfopen() as opposed to the wcsrtombs() -fallback, so if you notice your compiler not detecting this properly I'm happy to look at adding support. -*/ -#if defined(_WIN32) - #if defined(_MSC_VER) || defined(__MINGW64__) || (!defined(__STRICT_ANSI__) && !defined(_NO_EXT_KEYS)) - #define DRMP3_HAS_WFOPEN - #endif -#endif - -static drmp3_result drmp3_wfopen(FILE** ppFile, const wchar_t* pFilePath, const wchar_t* pOpenMode, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (ppFile != NULL) { - *ppFile = NULL; /* Safety. */ - } - - if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) { - return DRMP3_INVALID_ARGS; - } - -#if defined(DRMP3_HAS_WFOPEN) - { - /* Use _wfopen() on Windows. */ - #if defined(_MSC_VER) && _MSC_VER >= 1400 - errno_t err = _wfopen_s(ppFile, pFilePath, pOpenMode); - if (err != 0) { - return drmp3_result_from_errno(err); - } - #else - *ppFile = _wfopen(pFilePath, pOpenMode); - if (*ppFile == NULL) { - return drmp3_result_from_errno(errno); - } - #endif - (void)pAllocationCallbacks; - } -#else - /* - Use fopen() on anything other than Windows. Requires a conversion. This is annoying because - fopen() is locale specific. The only real way I can think of to do this is with wcsrtombs(). Note - that wcstombs() is apparently not thread-safe because it uses a static global mbstate_t object for - maintaining state. I've checked this with -std=c89 and it works, but if somebody get's a compiler - error I'll look into improving compatibility. - */ - - /* - Some compilers don't support wchar_t or wcsrtombs() which we're using below. In this case we just - need to abort with an error. If you encounter a compiler lacking such support, add it to this list - and submit a bug report and it'll be added to the library upstream. - */ - #if defined(__DJGPP__) - { - /* Nothing to do here. This will fall through to the error check below. */ - } - #else - { - mbstate_t mbs; - size_t lenMB; - const wchar_t* pFilePathTemp = pFilePath; - char* pFilePathMB = NULL; - char pOpenModeMB[32] = {0}; - - /* Get the length first. */ - DRMP3_ZERO_OBJECT(&mbs); - lenMB = wcsrtombs(NULL, &pFilePathTemp, 0, &mbs); - if (lenMB == (size_t)-1) { - return drmp3_result_from_errno(errno); - } - - pFilePathMB = (char*)drmp3__malloc_from_callbacks(lenMB + 1, pAllocationCallbacks); - if (pFilePathMB == NULL) { - return DRMP3_OUT_OF_MEMORY; - } - - pFilePathTemp = pFilePath; - DRMP3_ZERO_OBJECT(&mbs); - wcsrtombs(pFilePathMB, &pFilePathTemp, lenMB + 1, &mbs); - - /* The open mode should always consist of ASCII characters so we should be able to do a trivial conversion. */ - { - size_t i = 0; - for (;;) { - if (pOpenMode[i] == 0) { - pOpenModeMB[i] = '\0'; - break; - } - - pOpenModeMB[i] = (char)pOpenMode[i]; - i += 1; - } - } - - *ppFile = fopen(pFilePathMB, pOpenModeMB); - - drmp3__free_from_callbacks(pFilePathMB, pAllocationCallbacks); - } - #endif - - if (*ppFile == NULL) { - return DRMP3_ERROR; - } -#endif - - return DRMP3_SUCCESS; -} -/* End fopen */ - - -static size_t drmp3__on_read_stdio(void* pUserData, void* pBufferOut, size_t bytesToRead) -{ - return fread(pBufferOut, 1, bytesToRead, (FILE*)pUserData); -} - -static drmp3_bool32 drmp3__on_seek_stdio(void* pUserData, int offset, drmp3_seek_origin origin) -{ - return fseek((FILE*)pUserData, offset, (origin == drmp3_seek_origin_current) ? SEEK_CUR : SEEK_SET) == 0; -} - -DRMP3_API drmp3_bool32 drmp3_init_file(drmp3* pMP3, const char* pFilePath, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3_bool32 result; - FILE* pFile; - - if (drmp3_fopen(&pFile, pFilePath, "rb") != DRMP3_SUCCESS) { - return DRMP3_FALSE; - } - - result = drmp3_init(pMP3, drmp3__on_read_stdio, drmp3__on_seek_stdio, (void*)pFile, pAllocationCallbacks); - if (result != DRMP3_TRUE) { - fclose(pFile); - return result; - } - - return DRMP3_TRUE; -} - -DRMP3_API drmp3_bool32 drmp3_init_file_w(drmp3* pMP3, const wchar_t* pFilePath, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3_bool32 result; - FILE* pFile; - - if (drmp3_wfopen(&pFile, pFilePath, L"rb", pAllocationCallbacks) != DRMP3_SUCCESS) { - return DRMP3_FALSE; - } - - result = drmp3_init(pMP3, drmp3__on_read_stdio, drmp3__on_seek_stdio, (void*)pFile, pAllocationCallbacks); - if (result != DRMP3_TRUE) { - fclose(pFile); - return result; - } - - return DRMP3_TRUE; -} -#endif - -DRMP3_API void drmp3_uninit(drmp3* pMP3) -{ - if (pMP3 == NULL) { - return; - } - -#ifndef DR_MP3_NO_STDIO - if (pMP3->onRead == drmp3__on_read_stdio) { - FILE* pFile = (FILE*)pMP3->pUserData; - if (pFile != NULL) { - fclose(pFile); - pMP3->pUserData = NULL; /* Make sure the file handle is cleared to NULL to we don't attempt to close it a second time. */ - } - } -#endif - - drmp3__free_from_callbacks(pMP3->pData, &pMP3->allocationCallbacks); -} - -#if defined(DR_MP3_FLOAT_OUTPUT) -static void drmp3_f32_to_s16(drmp3_int16* dst, const float* src, drmp3_uint64 sampleCount) -{ - drmp3_uint64 i; - drmp3_uint64 i4; - drmp3_uint64 sampleCount4; - - /* Unrolled. */ - i = 0; - sampleCount4 = sampleCount >> 2; - for (i4 = 0; i4 < sampleCount4; i4 += 1) { - float x0 = src[i+0]; - float x1 = src[i+1]; - float x2 = src[i+2]; - float x3 = src[i+3]; - - x0 = ((x0 < -1) ? -1 : ((x0 > 1) ? 1 : x0)); - x1 = ((x1 < -1) ? -1 : ((x1 > 1) ? 1 : x1)); - x2 = ((x2 < -1) ? -1 : ((x2 > 1) ? 1 : x2)); - x3 = ((x3 < -1) ? -1 : ((x3 > 1) ? 1 : x3)); - - x0 = x0 * 32767.0f; - x1 = x1 * 32767.0f; - x2 = x2 * 32767.0f; - x3 = x3 * 32767.0f; - - dst[i+0] = (drmp3_int16)x0; - dst[i+1] = (drmp3_int16)x1; - dst[i+2] = (drmp3_int16)x2; - dst[i+3] = (drmp3_int16)x3; - - i += 4; - } - - /* Leftover. */ - for (; i < sampleCount; i += 1) { - float x = src[i]; - x = ((x < -1) ? -1 : ((x > 1) ? 1 : x)); /* clip */ - x = x * 32767.0f; /* -1..1 to -32767..32767 */ - - dst[i] = (drmp3_int16)x; - } -} -#endif - -#if !defined(DR_MP3_FLOAT_OUTPUT) -static void drmp3_s16_to_f32(float* dst, const drmp3_int16* src, drmp3_uint64 sampleCount) -{ - drmp3_uint64 i; - for (i = 0; i < sampleCount; i += 1) { - float x = (float)src[i]; - x = x * 0.000030517578125f; /* -32768..32767 to -1..0.999969482421875 */ - dst[i] = x; - } -} -#endif - - -static drmp3_uint64 drmp3_read_pcm_frames_raw(drmp3* pMP3, drmp3_uint64 framesToRead, void* pBufferOut) -{ - drmp3_uint64 totalFramesRead = 0; - - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->onRead != NULL); - - while (framesToRead > 0) { - drmp3_uint32 framesToConsume = (drmp3_uint32)DRMP3_MIN(pMP3->pcmFramesRemainingInMP3Frame, framesToRead); - if (pBufferOut != NULL) { - #if defined(DR_MP3_FLOAT_OUTPUT) - /* f32 */ - float* pFramesOutF32 = (float*)DRMP3_OFFSET_PTR(pBufferOut, sizeof(float) * totalFramesRead * pMP3->channels); - float* pFramesInF32 = (float*)DRMP3_OFFSET_PTR(&pMP3->pcmFrames[0], sizeof(float) * pMP3->pcmFramesConsumedInMP3Frame * pMP3->mp3FrameChannels); - DRMP3_COPY_MEMORY(pFramesOutF32, pFramesInF32, sizeof(float) * framesToConsume * pMP3->channels); - #else - /* s16 */ - drmp3_int16* pFramesOutS16 = (drmp3_int16*)DRMP3_OFFSET_PTR(pBufferOut, sizeof(drmp3_int16) * totalFramesRead * pMP3->channels); - drmp3_int16* pFramesInS16 = (drmp3_int16*)DRMP3_OFFSET_PTR(&pMP3->pcmFrames[0], sizeof(drmp3_int16) * pMP3->pcmFramesConsumedInMP3Frame * pMP3->mp3FrameChannels); - DRMP3_COPY_MEMORY(pFramesOutS16, pFramesInS16, sizeof(drmp3_int16) * framesToConsume * pMP3->channels); - #endif - } - - pMP3->currentPCMFrame += framesToConsume; - pMP3->pcmFramesConsumedInMP3Frame += framesToConsume; - pMP3->pcmFramesRemainingInMP3Frame -= framesToConsume; - totalFramesRead += framesToConsume; - framesToRead -= framesToConsume; - - if (framesToRead == 0) { - break; - } - - DRMP3_ASSERT(pMP3->pcmFramesRemainingInMP3Frame == 0); - - /* - At this point we have exhausted our in-memory buffer so we need to re-fill. Note that the sample rate may have changed - at this point which means we'll also need to update our sample rate conversion pipeline. - */ - if (drmp3_decode_next_frame(pMP3) == 0) { - break; - } - } - - return totalFramesRead; -} - - -DRMP3_API drmp3_uint64 drmp3_read_pcm_frames_f32(drmp3* pMP3, drmp3_uint64 framesToRead, float* pBufferOut) -{ - if (pMP3 == NULL || pMP3->onRead == NULL) { - return 0; - } - -#if defined(DR_MP3_FLOAT_OUTPUT) - /* Fast path. No conversion required. */ - return drmp3_read_pcm_frames_raw(pMP3, framesToRead, pBufferOut); -#else - /* Slow path. Convert from s16 to f32. */ - { - drmp3_int16 pTempS16[8192]; - drmp3_uint64 totalPCMFramesRead = 0; - - while (totalPCMFramesRead < framesToRead) { - drmp3_uint64 framesJustRead; - drmp3_uint64 framesRemaining = framesToRead - totalPCMFramesRead; - drmp3_uint64 framesToReadNow = DRMP3_COUNTOF(pTempS16) / pMP3->channels; - if (framesToReadNow > framesRemaining) { - framesToReadNow = framesRemaining; - } - - framesJustRead = drmp3_read_pcm_frames_raw(pMP3, framesToReadNow, pTempS16); - if (framesJustRead == 0) { - break; - } - - drmp3_s16_to_f32((float*)DRMP3_OFFSET_PTR(pBufferOut, sizeof(float) * totalPCMFramesRead * pMP3->channels), pTempS16, framesJustRead * pMP3->channels); - totalPCMFramesRead += framesJustRead; - } - - return totalPCMFramesRead; - } -#endif -} - -DRMP3_API drmp3_uint64 drmp3_read_pcm_frames_s16(drmp3* pMP3, drmp3_uint64 framesToRead, drmp3_int16* pBufferOut) -{ - if (pMP3 == NULL || pMP3->onRead == NULL) { - return 0; - } - -#if !defined(DR_MP3_FLOAT_OUTPUT) - /* Fast path. No conversion required. */ - return drmp3_read_pcm_frames_raw(pMP3, framesToRead, pBufferOut); -#else - /* Slow path. Convert from f32 to s16. */ - { - float pTempF32[4096]; - drmp3_uint64 totalPCMFramesRead = 0; - - while (totalPCMFramesRead < framesToRead) { - drmp3_uint64 framesJustRead; - drmp3_uint64 framesRemaining = framesToRead - totalPCMFramesRead; - drmp3_uint64 framesToReadNow = DRMP3_COUNTOF(pTempF32) / pMP3->channels; - if (framesToReadNow > framesRemaining) { - framesToReadNow = framesRemaining; - } - - framesJustRead = drmp3_read_pcm_frames_raw(pMP3, framesToReadNow, pTempF32); - if (framesJustRead == 0) { - break; - } - - drmp3_f32_to_s16((drmp3_int16*)DRMP3_OFFSET_PTR(pBufferOut, sizeof(drmp3_int16) * totalPCMFramesRead * pMP3->channels), pTempF32, framesJustRead * pMP3->channels); - totalPCMFramesRead += framesJustRead; - } - - return totalPCMFramesRead; - } -#endif -} - -static void drmp3_reset(drmp3* pMP3) -{ - DRMP3_ASSERT(pMP3 != NULL); - - pMP3->pcmFramesConsumedInMP3Frame = 0; - pMP3->pcmFramesRemainingInMP3Frame = 0; - pMP3->currentPCMFrame = 0; - pMP3->dataSize = 0; - pMP3->atEnd = DRMP3_FALSE; - drmp3dec_init(&pMP3->decoder); -} - -static drmp3_bool32 drmp3_seek_to_start_of_stream(drmp3* pMP3) -{ - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->onSeek != NULL); - - /* Seek to the start of the stream to begin with. */ - if (!drmp3__on_seek(pMP3, 0, drmp3_seek_origin_start)) { - return DRMP3_FALSE; - } - - /* Clear any cached data. */ - drmp3_reset(pMP3); - return DRMP3_TRUE; -} - - -static drmp3_bool32 drmp3_seek_forward_by_pcm_frames__brute_force(drmp3* pMP3, drmp3_uint64 frameOffset) -{ - drmp3_uint64 framesRead; - - /* - Just using a dumb read-and-discard for now. What would be nice is to parse only the header of the MP3 frame, and then skip over leading - frames without spending the time doing a full decode. I cannot see an easy way to do this in minimp3, however, so it may involve some - kind of manual processing. - */ -#if defined(DR_MP3_FLOAT_OUTPUT) - framesRead = drmp3_read_pcm_frames_f32(pMP3, frameOffset, NULL); -#else - framesRead = drmp3_read_pcm_frames_s16(pMP3, frameOffset, NULL); -#endif - if (framesRead != frameOffset) { - return DRMP3_FALSE; - } - - return DRMP3_TRUE; -} - -static drmp3_bool32 drmp3_seek_to_pcm_frame__brute_force(drmp3* pMP3, drmp3_uint64 frameIndex) -{ - DRMP3_ASSERT(pMP3 != NULL); - - if (frameIndex == pMP3->currentPCMFrame) { - return DRMP3_TRUE; - } - - /* - If we're moving foward we just read from where we're at. Otherwise we need to move back to the start of - the stream and read from the beginning. - */ - if (frameIndex < pMP3->currentPCMFrame) { - /* Moving backward. Move to the start of the stream and then move forward. */ - if (!drmp3_seek_to_start_of_stream(pMP3)) { - return DRMP3_FALSE; - } - } - - DRMP3_ASSERT(frameIndex >= pMP3->currentPCMFrame); - return drmp3_seek_forward_by_pcm_frames__brute_force(pMP3, (frameIndex - pMP3->currentPCMFrame)); -} - -static drmp3_bool32 drmp3_find_closest_seek_point(drmp3* pMP3, drmp3_uint64 frameIndex, drmp3_uint32* pSeekPointIndex) -{ - drmp3_uint32 iSeekPoint; - - DRMP3_ASSERT(pSeekPointIndex != NULL); - - *pSeekPointIndex = 0; - - if (frameIndex < pMP3->pSeekPoints[0].pcmFrameIndex) { - return DRMP3_FALSE; - } - - /* Linear search for simplicity to begin with while I'm getting this thing working. Once it's all working change this to a binary search. */ - for (iSeekPoint = 0; iSeekPoint < pMP3->seekPointCount; ++iSeekPoint) { - if (pMP3->pSeekPoints[iSeekPoint].pcmFrameIndex > frameIndex) { - break; /* Found it. */ - } - - *pSeekPointIndex = iSeekPoint; - } - - return DRMP3_TRUE; -} - -static drmp3_bool32 drmp3_seek_to_pcm_frame__seek_table(drmp3* pMP3, drmp3_uint64 frameIndex) -{ - drmp3_seek_point seekPoint; - drmp3_uint32 priorSeekPointIndex; - drmp3_uint16 iMP3Frame; - drmp3_uint64 leftoverFrames; - - DRMP3_ASSERT(pMP3 != NULL); - DRMP3_ASSERT(pMP3->pSeekPoints != NULL); - DRMP3_ASSERT(pMP3->seekPointCount > 0); - - /* If there is no prior seekpoint it means the target PCM frame comes before the first seek point. Just assume a seekpoint at the start of the file in this case. */ - if (drmp3_find_closest_seek_point(pMP3, frameIndex, &priorSeekPointIndex)) { - seekPoint = pMP3->pSeekPoints[priorSeekPointIndex]; - } else { - seekPoint.seekPosInBytes = 0; - seekPoint.pcmFrameIndex = 0; - seekPoint.mp3FramesToDiscard = 0; - seekPoint.pcmFramesToDiscard = 0; - } - - /* First thing to do is seek to the first byte of the relevant MP3 frame. */ - if (!drmp3__on_seek_64(pMP3, seekPoint.seekPosInBytes, drmp3_seek_origin_start)) { - return DRMP3_FALSE; /* Failed to seek. */ - } - - /* Clear any cached data. */ - drmp3_reset(pMP3); - - /* Whole MP3 frames need to be discarded first. */ - for (iMP3Frame = 0; iMP3Frame < seekPoint.mp3FramesToDiscard; ++iMP3Frame) { - drmp3_uint32 pcmFramesRead; - drmp3d_sample_t* pPCMFrames; - - /* Pass in non-null for the last frame because we want to ensure the sample rate converter is preloaded correctly. */ - pPCMFrames = NULL; - if (iMP3Frame == seekPoint.mp3FramesToDiscard-1) { - pPCMFrames = (drmp3d_sample_t*)pMP3->pcmFrames; - } - - /* We first need to decode the next frame. */ - pcmFramesRead = drmp3_decode_next_frame_ex(pMP3, pPCMFrames); - if (pcmFramesRead == 0) { - return DRMP3_FALSE; - } - } - - /* We seeked to an MP3 frame in the raw stream so we need to make sure the current PCM frame is set correctly. */ - pMP3->currentPCMFrame = seekPoint.pcmFrameIndex - seekPoint.pcmFramesToDiscard; - - /* - Now at this point we can follow the same process as the brute force technique where we just skip over unnecessary MP3 frames and then - read-and-discard at least 2 whole MP3 frames. - */ - leftoverFrames = frameIndex - pMP3->currentPCMFrame; - return drmp3_seek_forward_by_pcm_frames__brute_force(pMP3, leftoverFrames); -} - -DRMP3_API drmp3_bool32 drmp3_seek_to_pcm_frame(drmp3* pMP3, drmp3_uint64 frameIndex) -{ - if (pMP3 == NULL || pMP3->onSeek == NULL) { - return DRMP3_FALSE; - } - - if (frameIndex == 0) { - return drmp3_seek_to_start_of_stream(pMP3); - } - - /* Use the seek table if we have one. */ - if (pMP3->pSeekPoints != NULL && pMP3->seekPointCount > 0) { - return drmp3_seek_to_pcm_frame__seek_table(pMP3, frameIndex); - } else { - return drmp3_seek_to_pcm_frame__brute_force(pMP3, frameIndex); - } -} - -DRMP3_API drmp3_bool32 drmp3_get_mp3_and_pcm_frame_count(drmp3* pMP3, drmp3_uint64* pMP3FrameCount, drmp3_uint64* pPCMFrameCount) -{ - drmp3_uint64 currentPCMFrame; - drmp3_uint64 totalPCMFrameCount; - drmp3_uint64 totalMP3FrameCount; - - if (pMP3 == NULL) { - return DRMP3_FALSE; - } - - /* - The way this works is we move back to the start of the stream, iterate over each MP3 frame and calculate the frame count based - on our output sample rate, the seek back to the PCM frame we were sitting on before calling this function. - */ - - /* The stream must support seeking for this to work. */ - if (pMP3->onSeek == NULL) { - return DRMP3_FALSE; - } - - /* We'll need to seek back to where we were, so grab the PCM frame we're currently sitting on so we can restore later. */ - currentPCMFrame = pMP3->currentPCMFrame; - - if (!drmp3_seek_to_start_of_stream(pMP3)) { - return DRMP3_FALSE; - } - - totalPCMFrameCount = 0; - totalMP3FrameCount = 0; - - for (;;) { - drmp3_uint32 pcmFramesInCurrentMP3Frame; - - pcmFramesInCurrentMP3Frame = drmp3_decode_next_frame_ex(pMP3, NULL); - if (pcmFramesInCurrentMP3Frame == 0) { - break; - } - - totalPCMFrameCount += pcmFramesInCurrentMP3Frame; - totalMP3FrameCount += 1; - } - - /* Finally, we need to seek back to where we were. */ - if (!drmp3_seek_to_start_of_stream(pMP3)) { - return DRMP3_FALSE; - } - - if (!drmp3_seek_to_pcm_frame(pMP3, currentPCMFrame)) { - return DRMP3_FALSE; - } - - if (pMP3FrameCount != NULL) { - *pMP3FrameCount = totalMP3FrameCount; - } - if (pPCMFrameCount != NULL) { - *pPCMFrameCount = totalPCMFrameCount; - } - - return DRMP3_TRUE; -} - -DRMP3_API drmp3_uint64 drmp3_get_pcm_frame_count(drmp3* pMP3) -{ - drmp3_uint64 totalPCMFrameCount; - if (!drmp3_get_mp3_and_pcm_frame_count(pMP3, NULL, &totalPCMFrameCount)) { - return 0; - } - - return totalPCMFrameCount; -} - -DRMP3_API drmp3_uint64 drmp3_get_mp3_frame_count(drmp3* pMP3) -{ - drmp3_uint64 totalMP3FrameCount; - if (!drmp3_get_mp3_and_pcm_frame_count(pMP3, &totalMP3FrameCount, NULL)) { - return 0; - } - - return totalMP3FrameCount; -} - -static void drmp3__accumulate_running_pcm_frame_count(drmp3* pMP3, drmp3_uint32 pcmFrameCountIn, drmp3_uint64* pRunningPCMFrameCount, float* pRunningPCMFrameCountFractionalPart) -{ - float srcRatio; - float pcmFrameCountOutF; - drmp3_uint32 pcmFrameCountOut; - - srcRatio = (float)pMP3->mp3FrameSampleRate / (float)pMP3->sampleRate; - DRMP3_ASSERT(srcRatio > 0); - - pcmFrameCountOutF = *pRunningPCMFrameCountFractionalPart + (pcmFrameCountIn / srcRatio); - pcmFrameCountOut = (drmp3_uint32)pcmFrameCountOutF; - *pRunningPCMFrameCountFractionalPart = pcmFrameCountOutF - pcmFrameCountOut; - *pRunningPCMFrameCount += pcmFrameCountOut; -} - -typedef struct -{ - drmp3_uint64 bytePos; - drmp3_uint64 pcmFrameIndex; /* <-- After sample rate conversion. */ -} drmp3__seeking_mp3_frame_info; - -DRMP3_API drmp3_bool32 drmp3_calculate_seek_points(drmp3* pMP3, drmp3_uint32* pSeekPointCount, drmp3_seek_point* pSeekPoints) -{ - drmp3_uint32 seekPointCount; - drmp3_uint64 currentPCMFrame; - drmp3_uint64 totalMP3FrameCount; - drmp3_uint64 totalPCMFrameCount; - - if (pMP3 == NULL || pSeekPointCount == NULL || pSeekPoints == NULL) { - return DRMP3_FALSE; /* Invalid args. */ - } - - seekPointCount = *pSeekPointCount; - if (seekPointCount == 0) { - return DRMP3_FALSE; /* The client has requested no seek points. Consider this to be invalid arguments since the client has probably not intended this. */ - } - - /* We'll need to seek back to the current sample after calculating the seekpoints so we need to go ahead and grab the current location at the top. */ - currentPCMFrame = pMP3->currentPCMFrame; - - /* We never do more than the total number of MP3 frames and we limit it to 32-bits. */ - if (!drmp3_get_mp3_and_pcm_frame_count(pMP3, &totalMP3FrameCount, &totalPCMFrameCount)) { - return DRMP3_FALSE; - } - - /* If there's less than DRMP3_SEEK_LEADING_MP3_FRAMES+1 frames we just report 1 seek point which will be the very start of the stream. */ - if (totalMP3FrameCount < DRMP3_SEEK_LEADING_MP3_FRAMES+1) { - seekPointCount = 1; - pSeekPoints[0].seekPosInBytes = 0; - pSeekPoints[0].pcmFrameIndex = 0; - pSeekPoints[0].mp3FramesToDiscard = 0; - pSeekPoints[0].pcmFramesToDiscard = 0; - } else { - drmp3_uint64 pcmFramesBetweenSeekPoints; - drmp3__seeking_mp3_frame_info mp3FrameInfo[DRMP3_SEEK_LEADING_MP3_FRAMES+1]; - drmp3_uint64 runningPCMFrameCount = 0; - float runningPCMFrameCountFractionalPart = 0; - drmp3_uint64 nextTargetPCMFrame; - drmp3_uint32 iMP3Frame; - drmp3_uint32 iSeekPoint; - - if (seekPointCount > totalMP3FrameCount-1) { - seekPointCount = (drmp3_uint32)totalMP3FrameCount-1; - } - - pcmFramesBetweenSeekPoints = totalPCMFrameCount / (seekPointCount+1); - - /* - Here is where we actually calculate the seek points. We need to start by moving the start of the stream. We then enumerate over each - MP3 frame. - */ - if (!drmp3_seek_to_start_of_stream(pMP3)) { - return DRMP3_FALSE; - } - - /* - We need to cache the byte positions of the previous MP3 frames. As a new MP3 frame is iterated, we cycle the byte positions in this - array. The value in the first item in this array is the byte position that will be reported in the next seek point. - */ - - /* We need to initialize the array of MP3 byte positions for the leading MP3 frames. */ - for (iMP3Frame = 0; iMP3Frame < DRMP3_SEEK_LEADING_MP3_FRAMES+1; ++iMP3Frame) { - drmp3_uint32 pcmFramesInCurrentMP3FrameIn; - - /* The byte position of the next frame will be the stream's cursor position, minus whatever is sitting in the buffer. */ - DRMP3_ASSERT(pMP3->streamCursor >= pMP3->dataSize); - mp3FrameInfo[iMP3Frame].bytePos = pMP3->streamCursor - pMP3->dataSize; - mp3FrameInfo[iMP3Frame].pcmFrameIndex = runningPCMFrameCount; - - /* We need to get information about this frame so we can know how many samples it contained. */ - pcmFramesInCurrentMP3FrameIn = drmp3_decode_next_frame_ex(pMP3, NULL); - if (pcmFramesInCurrentMP3FrameIn == 0) { - return DRMP3_FALSE; /* This should never happen. */ - } - - drmp3__accumulate_running_pcm_frame_count(pMP3, pcmFramesInCurrentMP3FrameIn, &runningPCMFrameCount, &runningPCMFrameCountFractionalPart); - } - - /* - At this point we will have extracted the byte positions of the leading MP3 frames. We can now start iterating over each seek point and - calculate them. - */ - nextTargetPCMFrame = 0; - for (iSeekPoint = 0; iSeekPoint < seekPointCount; ++iSeekPoint) { - nextTargetPCMFrame += pcmFramesBetweenSeekPoints; - - for (;;) { - if (nextTargetPCMFrame < runningPCMFrameCount) { - /* The next seek point is in the current MP3 frame. */ - pSeekPoints[iSeekPoint].seekPosInBytes = mp3FrameInfo[0].bytePos; - pSeekPoints[iSeekPoint].pcmFrameIndex = nextTargetPCMFrame; - pSeekPoints[iSeekPoint].mp3FramesToDiscard = DRMP3_SEEK_LEADING_MP3_FRAMES; - pSeekPoints[iSeekPoint].pcmFramesToDiscard = (drmp3_uint16)(nextTargetPCMFrame - mp3FrameInfo[DRMP3_SEEK_LEADING_MP3_FRAMES-1].pcmFrameIndex); - break; - } else { - size_t i; - drmp3_uint32 pcmFramesInCurrentMP3FrameIn; - - /* - The next seek point is not in the current MP3 frame, so continue on to the next one. The first thing to do is cycle the cached - MP3 frame info. - */ - for (i = 0; i < DRMP3_COUNTOF(mp3FrameInfo)-1; ++i) { - mp3FrameInfo[i] = mp3FrameInfo[i+1]; - } - - /* Cache previous MP3 frame info. */ - mp3FrameInfo[DRMP3_COUNTOF(mp3FrameInfo)-1].bytePos = pMP3->streamCursor - pMP3->dataSize; - mp3FrameInfo[DRMP3_COUNTOF(mp3FrameInfo)-1].pcmFrameIndex = runningPCMFrameCount; - - /* - Go to the next MP3 frame. This shouldn't ever fail, but just in case it does we just set the seek point and break. If it happens, it - should only ever do it for the last seek point. - */ - pcmFramesInCurrentMP3FrameIn = drmp3_decode_next_frame_ex(pMP3, NULL); - if (pcmFramesInCurrentMP3FrameIn == 0) { - pSeekPoints[iSeekPoint].seekPosInBytes = mp3FrameInfo[0].bytePos; - pSeekPoints[iSeekPoint].pcmFrameIndex = nextTargetPCMFrame; - pSeekPoints[iSeekPoint].mp3FramesToDiscard = DRMP3_SEEK_LEADING_MP3_FRAMES; - pSeekPoints[iSeekPoint].pcmFramesToDiscard = (drmp3_uint16)(nextTargetPCMFrame - mp3FrameInfo[DRMP3_SEEK_LEADING_MP3_FRAMES-1].pcmFrameIndex); - break; - } - - drmp3__accumulate_running_pcm_frame_count(pMP3, pcmFramesInCurrentMP3FrameIn, &runningPCMFrameCount, &runningPCMFrameCountFractionalPart); - } - } - } - - /* Finally, we need to seek back to where we were. */ - if (!drmp3_seek_to_start_of_stream(pMP3)) { - return DRMP3_FALSE; - } - if (!drmp3_seek_to_pcm_frame(pMP3, currentPCMFrame)) { - return DRMP3_FALSE; - } - } - - *pSeekPointCount = seekPointCount; - return DRMP3_TRUE; -} - -DRMP3_API drmp3_bool32 drmp3_bind_seek_table(drmp3* pMP3, drmp3_uint32 seekPointCount, drmp3_seek_point* pSeekPoints) -{ - if (pMP3 == NULL) { - return DRMP3_FALSE; - } - - if (seekPointCount == 0 || pSeekPoints == NULL) { - /* Unbinding. */ - pMP3->seekPointCount = 0; - pMP3->pSeekPoints = NULL; - } else { - /* Binding. */ - pMP3->seekPointCount = seekPointCount; - pMP3->pSeekPoints = pSeekPoints; - } - - return DRMP3_TRUE; -} - - -static float* drmp3__full_read_and_close_f32(drmp3* pMP3, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount) -{ - drmp3_uint64 totalFramesRead = 0; - drmp3_uint64 framesCapacity = 0; - float* pFrames = NULL; - float temp[4096]; - - DRMP3_ASSERT(pMP3 != NULL); - - for (;;) { - drmp3_uint64 framesToReadRightNow = DRMP3_COUNTOF(temp) / pMP3->channels; - drmp3_uint64 framesJustRead = drmp3_read_pcm_frames_f32(pMP3, framesToReadRightNow, temp); - if (framesJustRead == 0) { - break; - } - - /* Reallocate the output buffer if there's not enough room. */ - if (framesCapacity < totalFramesRead + framesJustRead) { - drmp3_uint64 oldFramesBufferSize; - drmp3_uint64 newFramesBufferSize; - drmp3_uint64 newFramesCap; - float* pNewFrames; - - newFramesCap = framesCapacity * 2; - if (newFramesCap < totalFramesRead + framesJustRead) { - newFramesCap = totalFramesRead + framesJustRead; - } - - oldFramesBufferSize = framesCapacity * pMP3->channels * sizeof(float); - newFramesBufferSize = newFramesCap * pMP3->channels * sizeof(float); - if (newFramesBufferSize > (drmp3_uint64)DRMP3_SIZE_MAX) { - break; - } - - pNewFrames = (float*)drmp3__realloc_from_callbacks(pFrames, (size_t)newFramesBufferSize, (size_t)oldFramesBufferSize, &pMP3->allocationCallbacks); - if (pNewFrames == NULL) { - drmp3__free_from_callbacks(pFrames, &pMP3->allocationCallbacks); - break; - } - - pFrames = pNewFrames; - framesCapacity = newFramesCap; - } - - DRMP3_COPY_MEMORY(pFrames + totalFramesRead*pMP3->channels, temp, (size_t)(framesJustRead*pMP3->channels*sizeof(float))); - totalFramesRead += framesJustRead; - - /* If the number of frames we asked for is less that what we actually read it means we've reached the end. */ - if (framesJustRead != framesToReadRightNow) { - break; - } - } - - if (pConfig != NULL) { - pConfig->channels = pMP3->channels; - pConfig->sampleRate = pMP3->sampleRate; - } - - drmp3_uninit(pMP3); - - if (pTotalFrameCount) { - *pTotalFrameCount = totalFramesRead; - } - - return pFrames; -} - -static drmp3_int16* drmp3__full_read_and_close_s16(drmp3* pMP3, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount) -{ - drmp3_uint64 totalFramesRead = 0; - drmp3_uint64 framesCapacity = 0; - drmp3_int16* pFrames = NULL; - drmp3_int16 temp[4096]; - - DRMP3_ASSERT(pMP3 != NULL); - - for (;;) { - drmp3_uint64 framesToReadRightNow = DRMP3_COUNTOF(temp) / pMP3->channels; - drmp3_uint64 framesJustRead = drmp3_read_pcm_frames_s16(pMP3, framesToReadRightNow, temp); - if (framesJustRead == 0) { - break; - } - - /* Reallocate the output buffer if there's not enough room. */ - if (framesCapacity < totalFramesRead + framesJustRead) { - drmp3_uint64 newFramesBufferSize; - drmp3_uint64 oldFramesBufferSize; - drmp3_uint64 newFramesCap; - drmp3_int16* pNewFrames; - - newFramesCap = framesCapacity * 2; - if (newFramesCap < totalFramesRead + framesJustRead) { - newFramesCap = totalFramesRead + framesJustRead; - } - - oldFramesBufferSize = framesCapacity * pMP3->channels * sizeof(drmp3_int16); - newFramesBufferSize = newFramesCap * pMP3->channels * sizeof(drmp3_int16); - if (newFramesBufferSize > (drmp3_uint64)DRMP3_SIZE_MAX) { - break; - } - - pNewFrames = (drmp3_int16*)drmp3__realloc_from_callbacks(pFrames, (size_t)newFramesBufferSize, (size_t)oldFramesBufferSize, &pMP3->allocationCallbacks); - if (pNewFrames == NULL) { - drmp3__free_from_callbacks(pFrames, &pMP3->allocationCallbacks); - break; - } - - pFrames = pNewFrames; - framesCapacity = newFramesCap; - } - - DRMP3_COPY_MEMORY(pFrames + totalFramesRead*pMP3->channels, temp, (size_t)(framesJustRead*pMP3->channels*sizeof(drmp3_int16))); - totalFramesRead += framesJustRead; - - /* If the number of frames we asked for is less that what we actually read it means we've reached the end. */ - if (framesJustRead != framesToReadRightNow) { - break; - } - } - - if (pConfig != NULL) { - pConfig->channels = pMP3->channels; - pConfig->sampleRate = pMP3->sampleRate; - } - - drmp3_uninit(pMP3); - - if (pTotalFrameCount) { - *pTotalFrameCount = totalFramesRead; - } - - return pFrames; -} - - -DRMP3_API float* drmp3_open_and_read_pcm_frames_f32(drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init(&mp3, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_f32(&mp3, pConfig, pTotalFrameCount); -} - -DRMP3_API drmp3_int16* drmp3_open_and_read_pcm_frames_s16(drmp3_read_proc onRead, drmp3_seek_proc onSeek, void* pUserData, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init(&mp3, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_s16(&mp3, pConfig, pTotalFrameCount); -} - - -DRMP3_API float* drmp3_open_memory_and_read_pcm_frames_f32(const void* pData, size_t dataSize, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init_memory(&mp3, pData, dataSize, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_f32(&mp3, pConfig, pTotalFrameCount); -} - -DRMP3_API drmp3_int16* drmp3_open_memory_and_read_pcm_frames_s16(const void* pData, size_t dataSize, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init_memory(&mp3, pData, dataSize, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_s16(&mp3, pConfig, pTotalFrameCount); -} - - -#ifndef DR_MP3_NO_STDIO -DRMP3_API float* drmp3_open_file_and_read_pcm_frames_f32(const char* filePath, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init_file(&mp3, filePath, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_f32(&mp3, pConfig, pTotalFrameCount); -} - -DRMP3_API drmp3_int16* drmp3_open_file_and_read_pcm_frames_s16(const char* filePath, drmp3_config* pConfig, drmp3_uint64* pTotalFrameCount, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - drmp3 mp3; - if (!drmp3_init_file(&mp3, filePath, pAllocationCallbacks)) { - return NULL; - } - - return drmp3__full_read_and_close_s16(&mp3, pConfig, pTotalFrameCount); -} -#endif - -DRMP3_API void* drmp3_malloc(size_t sz, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks != NULL) { - return drmp3__malloc_from_callbacks(sz, pAllocationCallbacks); - } else { - return drmp3__malloc_default(sz, NULL); - } -} - -DRMP3_API void drmp3_free(void* p, const drmp3_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks != NULL) { - drmp3__free_from_callbacks(p, pAllocationCallbacks); - } else { - drmp3__free_default(p, NULL); - } -} - -#endif /* dr_mp3_c */ -#endif /*DR_MP3_IMPLEMENTATION*/ - -/* -DIFFERENCES BETWEEN minimp3 AND dr_mp3 -====================================== -- First, keep in mind that minimp3 (https://github.com/lieff/minimp3) is where all the real work was done. All of the - code relating to the actual decoding remains mostly unmodified, apart from some namespacing changes. -- dr_mp3 adds a pulling style API which allows you to deliver raw data via callbacks. So, rather than pushing data - to the decoder, the decoder _pulls_ data from your callbacks. -- In addition to callbacks, a decoder can be initialized from a block of memory and a file. -- The dr_mp3 pull API reads PCM frames rather than whole MP3 frames. -- dr_mp3 adds convenience APIs for opening and decoding entire files in one go. -- dr_mp3 is fully namespaced, including the implementation section, which is more suitable when compiling projects - as a single translation unit (aka unity builds). At the time of writing this, a unity build is not possible when - using minimp3 in conjunction with stb_vorbis. dr_mp3 addresses this. -*/ - -/* -RELEASE NOTES - v0.5.0 -======================= -Version 0.5.0 has breaking API changes. - -Improved Client-Defined Memory Allocation ------------------------------------------ -The main change with this release is the addition of a more flexible way of implementing custom memory allocation routines. The -existing system of DRMP3_MALLOC, DRMP3_REALLOC and DRMP3_FREE are still in place and will be used by default when no custom -allocation callbacks are specified. - -To use the new system, you pass in a pointer to a drmp3_allocation_callbacks object to drmp3_init() and family, like this: - - void* my_malloc(size_t sz, void* pUserData) - { - return malloc(sz); - } - void* my_realloc(void* p, size_t sz, void* pUserData) - { - return realloc(p, sz); - } - void my_free(void* p, void* pUserData) - { - free(p); - } - - ... - - drmp3_allocation_callbacks allocationCallbacks; - allocationCallbacks.pUserData = &myData; - allocationCallbacks.onMalloc = my_malloc; - allocationCallbacks.onRealloc = my_realloc; - allocationCallbacks.onFree = my_free; - drmp3_init_file(&mp3, "my_file.mp3", NULL, &allocationCallbacks); - -The advantage of this new system is that it allows you to specify user data which will be passed in to the allocation routines. - -Passing in null for the allocation callbacks object will cause dr_mp3 to use defaults which is the same as DRMP3_MALLOC, -DRMP3_REALLOC and DRMP3_FREE and the equivalent of how it worked in previous versions. - -Every API that opens a drmp3 object now takes this extra parameter. These include the following: - - drmp3_init() - drmp3_init_file() - drmp3_init_memory() - drmp3_open_and_read_pcm_frames_f32() - drmp3_open_and_read_pcm_frames_s16() - drmp3_open_memory_and_read_pcm_frames_f32() - drmp3_open_memory_and_read_pcm_frames_s16() - drmp3_open_file_and_read_pcm_frames_f32() - drmp3_open_file_and_read_pcm_frames_s16() - -Renamed APIs ------------- -The following APIs have been renamed for consistency with other dr_* libraries and to make it clear that they return PCM frame -counts rather than sample counts. - - drmp3_open_and_read_f32() -> drmp3_open_and_read_pcm_frames_f32() - drmp3_open_and_read_s16() -> drmp3_open_and_read_pcm_frames_s16() - drmp3_open_memory_and_read_f32() -> drmp3_open_memory_and_read_pcm_frames_f32() - drmp3_open_memory_and_read_s16() -> drmp3_open_memory_and_read_pcm_frames_s16() - drmp3_open_file_and_read_f32() -> drmp3_open_file_and_read_pcm_frames_f32() - drmp3_open_file_and_read_s16() -> drmp3_open_file_and_read_pcm_frames_s16() -*/ - -/* -REVISION HISTORY -================ -v0.6.38 - 2023-11-02 - - Fix build for ARMv6-M. - -v0.6.37 - 2023-07-07 - - Silence a static analysis warning. - -v0.6.36 - 2023-06-17 - - Fix an incorrect date in revision history. No functional change. - -v0.6.35 - 2023-05-22 - - Minor code restructure. No functional change. - -v0.6.34 - 2022-09-17 - - Fix compilation with DJGPP. - - Fix compilation when compiling with x86 with no SSE2. - - Remove an unnecessary variable from the drmp3 structure. - -v0.6.33 - 2022-04-10 - - Fix compilation error with the MSVC ARM64 build. - - Fix compilation error on older versions of GCC. - - Remove some unused functions. - -v0.6.32 - 2021-12-11 - - Fix a warning with Clang. - -v0.6.31 - 2021-08-22 - - Fix a bug when loading from memory. - -v0.6.30 - 2021-08-16 - - Silence some warnings. - - Replace memory operations with DRMP3_* macros. - -v0.6.29 - 2021-08-08 - - Bring up to date with minimp3. - -v0.6.28 - 2021-07-31 - - Fix platform detection for ARM64. - - Fix a compilation error with C89. - -v0.6.27 - 2021-02-21 - - Fix a warning due to referencing _MSC_VER when it is undefined. - -v0.6.26 - 2021-01-31 - - Bring up to date with minimp3. - -v0.6.25 - 2020-12-26 - - Remove DRMP3_DEFAULT_CHANNELS and DRMP3_DEFAULT_SAMPLE_RATE which are leftovers from some removed APIs. - -v0.6.24 - 2020-12-07 - - Fix a typo in version date for 0.6.23. - -v0.6.23 - 2020-12-03 - - Fix an error where a file can be closed twice when initialization of the decoder fails. - -v0.6.22 - 2020-12-02 - - Fix an error where it's possible for a file handle to be left open when initialization of the decoder fails. - -v0.6.21 - 2020-11-28 - - Bring up to date with minimp3. - -v0.6.20 - 2020-11-21 - - Fix compilation with OpenWatcom. - -v0.6.19 - 2020-11-13 - - Minor code clean up. - -v0.6.18 - 2020-11-01 - - Improve compiler support for older versions of GCC. - -v0.6.17 - 2020-09-28 - - Bring up to date with minimp3. - -v0.6.16 - 2020-08-02 - - Simplify sized types. - -v0.6.15 - 2020-07-25 - - Fix a compilation warning. - -v0.6.14 - 2020-07-23 - - Fix undefined behaviour with memmove(). - -v0.6.13 - 2020-07-06 - - Fix a bug when converting from s16 to f32 in drmp3_read_pcm_frames_f32(). - -v0.6.12 - 2020-06-23 - - Add include guard for the implementation section. - -v0.6.11 - 2020-05-26 - - Fix use of uninitialized variable error. - -v0.6.10 - 2020-05-16 - - Add compile-time and run-time version querying. - - DRMP3_VERSION_MINOR - - DRMP3_VERSION_MAJOR - - DRMP3_VERSION_REVISION - - DRMP3_VERSION_STRING - - drmp3_version() - - drmp3_version_string() - -v0.6.9 - 2020-04-30 - - Change the `pcm` parameter of drmp3dec_decode_frame() to a `const drmp3_uint8*` for consistency with internal APIs. - -v0.6.8 - 2020-04-26 - - Optimizations to decoding when initializing from memory. - -v0.6.7 - 2020-04-25 - - Fix a compilation error with DR_MP3_NO_STDIO - - Optimization to decoding by reducing some data movement. - -v0.6.6 - 2020-04-23 - - Fix a minor bug with the running PCM frame counter. - -v0.6.5 - 2020-04-19 - - Fix compilation error on ARM builds. - -v0.6.4 - 2020-04-19 - - Bring up to date with changes to minimp3. - -v0.6.3 - 2020-04-13 - - Fix some pedantic warnings. - -v0.6.2 - 2020-04-10 - - Fix a crash in drmp3_open_*_and_read_pcm_frames_*() if the output config object is NULL. - -v0.6.1 - 2020-04-05 - - Fix warnings. - -v0.6.0 - 2020-04-04 - - API CHANGE: Remove the pConfig parameter from the following APIs: - - drmp3_init() - - drmp3_init_memory() - - drmp3_init_file() - - Add drmp3_init_file_w() for opening a file from a wchar_t encoded path. - -v0.5.6 - 2020-02-12 - - Bring up to date with minimp3. - -v0.5.5 - 2020-01-29 - - Fix a memory allocation bug in high level s16 decoding APIs. - -v0.5.4 - 2019-12-02 - - Fix a possible null pointer dereference when using custom memory allocators for realloc(). - -v0.5.3 - 2019-11-14 - - Fix typos in documentation. - -v0.5.2 - 2019-11-02 - - Bring up to date with minimp3. - -v0.5.1 - 2019-10-08 - - Fix a warning with GCC. - -v0.5.0 - 2019-10-07 - - API CHANGE: Add support for user defined memory allocation routines. This system allows the program to specify their own memory allocation - routines with a user data pointer for client-specific contextual data. This adds an extra parameter to the end of the following APIs: - - drmp3_init() - - drmp3_init_file() - - drmp3_init_memory() - - drmp3_open_and_read_pcm_frames_f32() - - drmp3_open_and_read_pcm_frames_s16() - - drmp3_open_memory_and_read_pcm_frames_f32() - - drmp3_open_memory_and_read_pcm_frames_s16() - - drmp3_open_file_and_read_pcm_frames_f32() - - drmp3_open_file_and_read_pcm_frames_s16() - - API CHANGE: Renamed the following APIs: - - drmp3_open_and_read_f32() -> drmp3_open_and_read_pcm_frames_f32() - - drmp3_open_and_read_s16() -> drmp3_open_and_read_pcm_frames_s16() - - drmp3_open_memory_and_read_f32() -> drmp3_open_memory_and_read_pcm_frames_f32() - - drmp3_open_memory_and_read_s16() -> drmp3_open_memory_and_read_pcm_frames_s16() - - drmp3_open_file_and_read_f32() -> drmp3_open_file_and_read_pcm_frames_f32() - - drmp3_open_file_and_read_s16() -> drmp3_open_file_and_read_pcm_frames_s16() - -v0.4.7 - 2019-07-28 - - Fix a compiler error. - -v0.4.6 - 2019-06-14 - - Fix a compiler error. - -v0.4.5 - 2019-06-06 - - Bring up to date with minimp3. - -v0.4.4 - 2019-05-06 - - Fixes to the VC6 build. - -v0.4.3 - 2019-05-05 - - Use the channel count and/or sample rate of the first MP3 frame instead of DRMP3_DEFAULT_CHANNELS and - DRMP3_DEFAULT_SAMPLE_RATE when they are set to 0. To use the old behaviour, just set the relevant property to - DRMP3_DEFAULT_CHANNELS or DRMP3_DEFAULT_SAMPLE_RATE. - - Add s16 reading APIs - - drmp3_read_pcm_frames_s16 - - drmp3_open_memory_and_read_pcm_frames_s16 - - drmp3_open_and_read_pcm_frames_s16 - - drmp3_open_file_and_read_pcm_frames_s16 - - Add drmp3_get_mp3_and_pcm_frame_count() to the public header section. - - Add support for C89. - - Change license to choice of public domain or MIT-0. - -v0.4.2 - 2019-02-21 - - Fix a warning. - -v0.4.1 - 2018-12-30 - - Fix a warning. - -v0.4.0 - 2018-12-16 - - API CHANGE: Rename some APIs: - - drmp3_read_f32 -> to drmp3_read_pcm_frames_f32 - - drmp3_seek_to_frame -> drmp3_seek_to_pcm_frame - - drmp3_open_and_decode_f32 -> drmp3_open_and_read_pcm_frames_f32 - - drmp3_open_and_decode_memory_f32 -> drmp3_open_memory_and_read_pcm_frames_f32 - - drmp3_open_and_decode_file_f32 -> drmp3_open_file_and_read_pcm_frames_f32 - - Add drmp3_get_pcm_frame_count(). - - Add drmp3_get_mp3_frame_count(). - - Improve seeking performance. - -v0.3.2 - 2018-09-11 - - Fix a couple of memory leaks. - - Bring up to date with minimp3. - -v0.3.1 - 2018-08-25 - - Fix C++ build. - -v0.3.0 - 2018-08-25 - - Bring up to date with minimp3. This has a minor API change: the "pcm" parameter of drmp3dec_decode_frame() has - been changed from short* to void* because it can now output both s16 and f32 samples, depending on whether or - not the DR_MP3_FLOAT_OUTPUT option is set. - -v0.2.11 - 2018-08-08 - - Fix a bug where the last part of a file is not read. - -v0.2.10 - 2018-08-07 - - Improve 64-bit detection. - -v0.2.9 - 2018-08-05 - - Fix C++ build on older versions of GCC. - - Bring up to date with minimp3. - -v0.2.8 - 2018-08-02 - - Fix compilation errors with older versions of GCC. - -v0.2.7 - 2018-07-13 - - Bring up to date with minimp3. - -v0.2.6 - 2018-07-12 - - Bring up to date with minimp3. - -v0.2.5 - 2018-06-22 - - Bring up to date with minimp3. - -v0.2.4 - 2018-05-12 - - Bring up to date with minimp3. - -v0.2.3 - 2018-04-29 - - Fix TCC build. - -v0.2.2 - 2018-04-28 - - Fix bug when opening a decoder from memory. - -v0.2.1 - 2018-04-27 - - Efficiency improvements when the decoder reaches the end of the stream. - -v0.2 - 2018-04-21 - - Bring up to date with minimp3. - - Start using major.minor.revision versioning. - -v0.1d - 2018-03-30 - - Bring up to date with minimp3. - -v0.1c - 2018-03-11 - - Fix C++ build error. - -v0.1b - 2018-03-07 - - Bring up to date with minimp3. - -v0.1a - 2018-02-28 - - Fix compilation error on GCC/Clang. - - Fix some warnings. - -v0.1 - 2018-02-xx - - Initial versioned release. -*/ - -/* -This software is available as a choice of the following licenses. Choose -whichever you prefer. - -=============================================================================== -ALTERNATIVE 1 - Public Domain (www.unlicense.org) -=============================================================================== -This is free and unencumbered software released into the public domain. - -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. - -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -For more information, please refer to - -=============================================================================== -ALTERNATIVE 2 - MIT No Attribution -=============================================================================== -Copyright 2023 David Reid - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ - -/* - https://github.com/lieff/minimp3 - To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. - This software is distributed without any warranty. - See . -*/ diff --git a/src/codecs/minimp3/LICENSE b/src/codecs/minimp3/LICENSE new file mode 100644 index 000000000..2c4afabdb --- /dev/null +++ b/src/codecs/minimp3/LICENSE @@ -0,0 +1,117 @@ +CC0 1.0 Universal + +Statement of Purpose + +The laws of most jurisdictions throughout the world automatically confer +exclusive Copyright and Related Rights (defined below) upon the creator and +subsequent owner(s) (each and all, an "owner") of an original work of +authorship and/or a database (each, a "Work"). + +Certain owners wish to permanently relinquish those rights to a Work for the +purpose of contributing to a commons of creative, cultural and scientific +works ("Commons") that the public can reliably and without fear of later +claims of infringement build upon, modify, incorporate in other works, reuse +and redistribute as freely as possible in any form whatsoever and for any +purposes, including without limitation commercial purposes. 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Affirmer understands and acknowledges that Creative Commons is not a + party to this document and has no duty or obligation with respect to this + CC0 or use of the Work. + +For more information, please see + + diff --git a/src/codecs/minimp3/README.md b/src/codecs/minimp3/README.md new file mode 100644 index 000000000..fbf9455a3 --- /dev/null +++ b/src/codecs/minimp3/README.md @@ -0,0 +1,310 @@ +minimp3 +========== + +[![Build Status](https://travis-ci.org/lieff/minimp3.svg)](https://travis-ci.org/lieff/minimp3) + + Coverity Scan Build Status + +[![codecov](https://codecov.io/gh/lieff/minimp3/branch/master/graph/badge.svg)](https://codecov.io/gh/lieff/minimp3) + +Minimalistic, single-header library for decoding MP3. minimp3 is designed to be +small, fast (with SSE and NEON support), and accurate (ISO conformant). You can +find a rough benchmark below, measured using ``perf`` on an i7-6700K, IO +included, no CPU heat to address speedstep: + +| Vector | Hz | Samples| Sec | Clockticks | Clockticks per second | PSNR | Max diff | +| ----------- | ----- | ------ | ------ | --------- | ------ | ------ | - | +|compl.bit | 48000 | 248832 | 5.184 | 14306684 | 2.759M | 124.22 | 1 | +|he_32khz.bit | 32000 | 172800 | 5.4 | 8426158 | 1.560M | 139.67 | 1 | +|he_44khz.bit | 44100 | 472320 | 10.710 | 21296300 | 1.988M | 144.04 | 1 | +|he_48khz.bit | 48000 | 172800 | 3.6 | 8453846 | 2.348M | 139.67 | 1 | +|hecommon.bit | 44100 | 69120 | 1.567 | 3169715 | 2.022M | 133.93 | 1 | +|he_free.bit | 44100 | 156672 | 3.552 | 5798418 | 1.632M | 137.48 | 1 | +|he_mode.bit | 44100 | 262656 | 5.955 | 9882314 | 1.659M | 118.00 | 1 | +|si.bit | 44100 | 135936 | 3.082 | 7170520 | 2.326M | 120.30 | 1 | +|si_block.bit | 44100 | 73728 | 1.671 | 4233136 | 2.533M | 125.18 | 1 | +|si_huff.bit | 44100 | 86400 | 1.959 | 4785322 | 2.442M | 107.98 | 1 | +|sin1k0db.bit | 44100 | 725760 | 16.457 | 24842977 | 1.509M | 111.03 | 1 | + +Conformance test passed on all vectors (PSNR > 96db). + +## Comparison with keyj's [minimp3](https://keyj.emphy.de/minimp3/) + +Comparison by features: + +| Keyj minimp3 | Current | +| ------------ | ------- | +| Fixed point | Floating point | +| source: 84kb | 70kb | +| binary: 34kb (20kb compressed) | 30kb (20kb) | +| no vector opts | SSE/NEON intrinsics | +| no free format | free format support | + +Below, you can find the benchmark and conformance test for keyj's minimp3: + + +| Vector | Hz | Samples| Sec | Clockticks | Clockticks per second | PSNR | Max diff | +| ----------- | ----- | ------ | ------ | --------- | ------ | ----- | - | +|compl.bit | 48000 | 248832 | 5.184 | 31849373 | 6.143M | 71.50 | 41 | +|he_32khz.bit | 32000 | 172800 | 5.4 | 26302319 | 4.870M | 71.63 | 24 | +|he_44khz.bit | 44100 | 472320 | 10.710 | 41628861 | 3.886M | 71.63 | 24 | +|he_48khz.bit | 48000 | 172800 | 3.6 | 25899527 | 7.194M | 71.63 | 24 | +|hecommon.bit | 44100 | 69120 | 1.567 | 20437779 | 13.039M | 71.58 | 25 | +|he_free.bit | 44100 | 0 | 0 | - | - | - | - | +|he_mode.bit | 44100 | 262656 | 5.955 | 30988984 | 5.203M | 71.78 | 27 | +|si.bit | 44100 | 135936 | 3.082 | 24096223 | 7.817M | 72.35 | 36 | +|si_block.bit | 44100 | 73728 | 1.671 | 20722017 | 12.394M | 71.84 | 26 | +|si_huff.bit | 44100 | 86400 | 1.959 | 21121376 | 10.780M | 27.80 | 65535 | +|sin1k0db.bit | 44100 | 730368 | 16.561 | 55569636 | 3.355M | 0.15 | 58814 | + +Keyj minimp3 conformance test fails on all vectors (PSNR < 96db), and free +format is unsupported. This caused some problems when it was used +[here](https://github.com/lieff/lvg), and was the main motivation for this work. + +## Usage + +First, we need to initialize the decoder structure: + +```c +//#define MINIMP3_ONLY_MP3 +//#define MINIMP3_ONLY_SIMD +//#define MINIMP3_NO_SIMD +//#define MINIMP3_NONSTANDARD_BUT_LOGICAL +//#define MINIMP3_FLOAT_OUTPUT +#define MINIMP3_IMPLEMENTATION +#include "minimp3.h" +... + static mp3dec_t mp3d; + mp3dec_init(&mp3d); +``` + +Note that you must define ``MINIMP3_IMPLEMENTATION`` in exactly one source file. +You can ``#include`` ``minimp3.h`` in as many files as you like. +Also you can use ``MINIMP3_ONLY_MP3`` define to strip MP1/MP2 decoding code. +MINIMP3_ONLY_SIMD define controls generic (non SSE/NEON) code generation (always enabled on x64/arm64 targets). +In case you do not want any platform-specific SIMD optimizations, you can define ``MINIMP3_NO_SIMD``. +MINIMP3_NONSTANDARD_BUT_LOGICAL define saves some code bytes, and enforces non-standard but logical behaviour of mono-stereo transition (rare case). +MINIMP3_FLOAT_OUTPUT makes ``mp3dec_decode_frame()`` output to be float instead of short and additional function mp3dec_f32_to_s16 will be available for float->short conversion if needed. + +Then. we decode the input stream frame-by-frame: + +```c + /*typedef struct + { + int frame_bytes; + int channels; + int hz; + int layer; + int bitrate_kbps; + } mp3dec_frame_info_t;*/ + mp3dec_frame_info_t info; + short pcm[MINIMP3_MAX_SAMPLES_PER_FRAME]; + /*unsigned char *input_buf; - input byte stream*/ + samples = mp3dec_decode_frame(&mp3d, input_buf, buf_size, pcm, &info); +``` + +The ``mp3dec_decode_frame()`` function decodes one full MP3 frame from the +input buffer, which must be large enough to hold one full frame. + +The decoder will analyze the input buffer to properly sync with the MP3 stream, +and will skip ID3 data, as well as any data which is not valid. Short buffers +may cause false sync and can produce 'squealing' artefacts. The bigger the size +of the input buffer, the more reliable the sync procedure. We recommend having +as many as 10 consecutive MP3 frames (~16KB) in the input buffer at a time. + +At end of stream just pass rest of the buffer, sync procedure should work even +with just 1 frame in stream (except for free format and garbage at the end can +mess things up, so id3v1 and ape tags must be removed first). + +For free format there minimum 3 frames needed to do proper sync: 2 frames to +detect frame length and 1 next frame to check detect is good. + +The size of the consumed MP3 data is returned in the ``mp3dec_frame_info_t`` +field of the ``frame_bytes`` struct; you must remove the data corresponding to +the ``frame_bytes`` field from the input buffer before the next decoder +invocation. + +The decoding function returns the number of decoded samples. The following cases +are possible: + +- **0:** No MP3 data was found in the input buffer +- **384:** Layer 1 +- **576:** MPEG 2 Layer 3 +- **1152:** Otherwise + +The following is a description of the possible combinations of the number of +samples and ``frame_bytes`` field values: + +- More than 0 samples and ``frame_bytes > 0``: Succesful decode +- 0 samples and ``frame_bytes > 0``: The decoder skipped ID3 or invalid data +- 0 samples and ``frame_bytes == 0``: Insufficient data + +If ``frame_bytes == 0``, the other fields may be uninitialized or unchanged; if +``frame_bytes != 0``, the other fields are available. The application may call +``mp3dec_init()`` when changing decode position, but this is not necessary. + +As a special case, the decoder supports already split MP3 streams (for example, +after doing an MP4 demux). In this case, the input buffer must contain _exactly +one_ non-free-format frame. + +## Seeking + +You can seek to any byte in the stream and call ``mp3dec_decode_frame``; this +will work in almost all cases, but is not completely guaranteed. Probablility of +sync procedure failure lowers when MAX_FRAME_SYNC_MATCHES value grows. Default +MAX_FRAME_SYNC_MATCHES=10 and probablility of sync failure should be very low. +If granule data is accidentally detected as a valid MP3 header, short audio artefacting is +possible. + +High-level mp3dec_ex_seek function supports precise seek to sample (MP3D_SEEK_TO_SAMPLE) +using index and binary search. + +## Track length detect + +If the file is known to be cbr, then all frames have equal size and +lack ID3 tags, which allows us to decode the first frame and calculate all frame +positions as ``frame_bytes * N``. However, because of padding, frames can differ +in size even in this case. + +In general case whole stream scan is needed to calculate it's length. Scan can be +omitted if vbr tag is present (added by encoders like lame and ffmpeg), which contains +length info. High-level functions automatically use the vbr tag if present. + +## High-level API + +If you need only decode file/buffer or use precise seek, you can use optional high-level API. +Just ``#include`` ``minimp3_ex.h`` instead and use following additional functions: + +```c +#define MP3D_SEEK_TO_BYTE 0 +#define MP3D_SEEK_TO_SAMPLE 1 + +#define MINIMP3_PREDECODE_FRAMES 2 /* frames to pre-decode and skip after seek (to fill internal structures) */ +/*#define MINIMP3_SEEK_IDX_LINEAR_SEARCH*/ /* define to use linear index search instead of binary search on seek */ +#define MINIMP3_IO_SIZE (128*1024) /* io buffer size for streaming functions, must be greater than MINIMP3_BUF_SIZE */ +#define MINIMP3_BUF_SIZE (16*1024) /* buffer which can hold minimum 10 consecutive mp3 frames (~16KB) worst case */ +#define MINIMP3_ENABLE_RING 0 /* enable hardware magic ring buffer if available, to make less input buffer memmove(s) in callback IO mode */ + +#define MP3D_E_MEMORY -1 +#define MP3D_E_IOERROR -2 + +typedef struct +{ + mp3d_sample_t *buffer; + size_t samples; /* channels included, byte size = samples*sizeof(mp3d_sample_t) */ + int channels, hz, layer, avg_bitrate_kbps; +} mp3dec_file_info_t; + +typedef size_t (*MP3D_READ_CB)(void *buf, size_t size, void *user_data); +typedef int (*MP3D_SEEK_CB)(uint64_t position, void *user_data); + +typedef struct +{ + MP3D_READ_CB read; + void *read_data; + MP3D_SEEK_CB seek; + void *seek_data; +} mp3dec_io_t; + +typedef struct +{ + uint64_t samples; + mp3dec_frame_info_t info; + int last_error; + ... +} mp3dec_ex_t; + +typedef int (*MP3D_ITERATE_CB)(void *user_data, const uint8_t *frame, int frame_size, int free_format_bytes, size_t buf_size, uint64_t offset, mp3dec_frame_info_t *info); +typedef int (*MP3D_PROGRESS_CB)(void *user_data, size_t file_size, uint64_t offset, mp3dec_frame_info_t *info); + +/* decode whole buffer block */ +int mp3dec_load_buf(mp3dec_t *dec, const uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_load_cb(mp3dec_t *dec, mp3dec_io_t *io, uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +/* iterate through frames */ +int mp3dec_iterate_buf(const uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_iterate_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data); +/* streaming decoder with seeking capability */ +int mp3dec_ex_open_buf(mp3dec_ex_t *dec, const uint8_t *buf, size_t buf_size, int seek_method); +int mp3dec_ex_open_cb(mp3dec_ex_t *dec, mp3dec_io_t *io, int seek_method); +void mp3dec_ex_close(mp3dec_ex_t *dec); +int mp3dec_ex_seek(mp3dec_ex_t *dec, uint64_t position); +size_t mp3dec_ex_read(mp3dec_ex_t *dec, mp3d_sample_t *buf, size_t samples); +#ifndef MINIMP3_NO_STDIO +/* stdio versions of file load, iterate and stream */ +int mp3dec_load(mp3dec_t *dec, const char *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_iterate(const char *file_name, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_ex_open(mp3dec_ex_t *dec, const char *file_name, int seek_method); +#ifdef _WIN32 +int mp3dec_load_w(mp3dec_t *dec, const wchar_t *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_iterate_w(const wchar_t *file_name, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_ex_open_w(mp3dec_ex_t *dec, const wchar_t *file_name, int seek_method); +#endif +#endif +``` + +Use MINIMP3_NO_STDIO define to exclude STDIO functions. +MINIMP3_ALLOW_MONO_STEREO_TRANSITION allows mixing mono and stereo in same file. +In that case ``mp3dec_frame_info_t->channels = 0`` is reported on such files and correct channels number passed to progress_cb callback for each frame in mp3dec_frame_info_t structure. +MP3D_PROGRESS_CB is optional and can be NULL, example of file decoding: + +```c + mp3dec_t mp3d; + mp3dec_file_info_t info; + if (mp3dec_load(&mp3d, input_file_name, &info, NULL, NULL)) + { + /* error */ + } + /* mp3dec_file_info_t contains decoded samples and info, + use free(info.buffer) to deallocate samples */ +``` + +Example of file decoding with seek capability: + +```c + mp3dec_ex_t dec; + if (mp3dec_ex_open(&dec, input_file_name, MP3D_SEEK_TO_SAMPLE)) + { + /* error */ + } + /* dec.samples, dec.info.hz, dec.info.layer, dec.info.channels should be filled */ + if (mp3dec_ex_seek(&dec, position)) + { + /* error */ + } + mp3d_sample_t *buffer = malloc(dec.samples*sizeof(mp3d_sample_t)); + size_t readed = mp3dec_ex_read(&dec, buffer, dec.samples); + if (readed != dec.samples) /* normal eof or error condition */ + { + if (dec.last_error) + { + /* error */ + } + } +``` + +## Bindings + + * https://github.com/tosone/minimp3 - go bindings + * https://github.com/notviri/rmp3 - rust `no_std` bindings which don't allocate. + * https://github.com/germangb/minimp3-rs - rust bindings + * https://github.com/johangu/node-minimp3 - NodeJS bindings + * https://github.com/pyminimp3/pyminimp3 - python bindings + * https://github.com/bashi/minimp3-wasm - wasm bindings + * https://github.com/DasZiesel/minimp3-delphi - delphi bindings + * https://github.com/mgeier/minimp3_ex-sys - low-level rust bindings to `minimp3_ex` + +## Interesting links + + * https://keyj.emphy.de/minimp3/ + * https://github.com/technosaurus/PDMP3 + * https://github.com/technosaurus/PDMP2 + * https://github.com/packjpg/packMP3 + * https://sites.google.com/a/kmlager.com/www/projects + * https://sourceforge.net/projects/mp3dec/ + * http://blog.bjrn.se/2008/10/lets-build-mp3-decoder.html + * http://www.mp3-converter.com/mp3codec/ + * http://www.multiweb.cz/twoinches/mp3inside.htm + * https://www.mp3-tech.org/ + * https://id3.org/mp3Frame + * https://www.datavoyage.com/mpgscript/mpeghdr.htm diff --git a/src/codecs/minimp3/minimp3.h b/src/codecs/minimp3/minimp3.h new file mode 100644 index 000000000..3220ae1a8 --- /dev/null +++ b/src/codecs/minimp3/minimp3.h @@ -0,0 +1,1865 @@ +#ifndef MINIMP3_H +#define MINIMP3_H +/* + https://github.com/lieff/minimp3 + To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. + This software is distributed without any warranty. + See . +*/ +#include + +#define MINIMP3_MAX_SAMPLES_PER_FRAME (1152*2) + +typedef struct +{ + int frame_bytes, frame_offset, channels, hz, layer, bitrate_kbps; +} mp3dec_frame_info_t; + +typedef struct +{ + float mdct_overlap[2][9*32], qmf_state[15*2*32]; + int reserv, free_format_bytes; + unsigned char header[4], reserv_buf[511]; +} mp3dec_t; + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +void mp3dec_init(mp3dec_t *dec); +#ifndef MINIMP3_FLOAT_OUTPUT +typedef int16_t mp3d_sample_t; +#else /* MINIMP3_FLOAT_OUTPUT */ +typedef float mp3d_sample_t; +void mp3dec_f32_to_s16(const float *in, int16_t *out, int num_samples); +#endif /* MINIMP3_FLOAT_OUTPUT */ +int mp3dec_decode_frame(mp3dec_t *dec, const uint8_t *mp3, int mp3_bytes, mp3d_sample_t *pcm, mp3dec_frame_info_t *info); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* MINIMP3_H */ +#if defined(MINIMP3_IMPLEMENTATION) && !defined(_MINIMP3_IMPLEMENTATION_GUARD) +#define _MINIMP3_IMPLEMENTATION_GUARD + +#include +#include + +#define MAX_FREE_FORMAT_FRAME_SIZE 2304 /* more than ISO spec's */ +#ifndef MAX_FRAME_SYNC_MATCHES +#define MAX_FRAME_SYNC_MATCHES 10 +#endif /* MAX_FRAME_SYNC_MATCHES */ + +#define MAX_L3_FRAME_PAYLOAD_BYTES MAX_FREE_FORMAT_FRAME_SIZE /* MUST be >= 320000/8/32000*1152 = 1440 */ + +#define MAX_BITRESERVOIR_BYTES 511 +#define SHORT_BLOCK_TYPE 2 +#define STOP_BLOCK_TYPE 3 +#define MODE_MONO 3 +#define MODE_JOINT_STEREO 1 +#define HDR_SIZE 4 +#define HDR_IS_MONO(h) (((h[3]) & 0xC0) == 0xC0) +#define HDR_IS_MS_STEREO(h) (((h[3]) & 0xE0) == 0x60) +#define HDR_IS_FREE_FORMAT(h) (((h[2]) & 0xF0) == 0) +#define HDR_IS_CRC(h) (!((h[1]) & 1)) +#define HDR_TEST_PADDING(h) ((h[2]) & 0x2) +#define HDR_TEST_MPEG1(h) ((h[1]) & 0x8) +#define HDR_TEST_NOT_MPEG25(h) ((h[1]) & 0x10) +#define HDR_TEST_I_STEREO(h) ((h[3]) & 0x10) +#define HDR_TEST_MS_STEREO(h) ((h[3]) & 0x20) +#define HDR_GET_STEREO_MODE(h) (((h[3]) >> 6) & 3) +#define HDR_GET_STEREO_MODE_EXT(h) (((h[3]) >> 4) & 3) +#define HDR_GET_LAYER(h) (((h[1]) >> 1) & 3) +#define HDR_GET_BITRATE(h) ((h[2]) >> 4) +#define HDR_GET_SAMPLE_RATE(h) (((h[2]) >> 2) & 3) +#define HDR_GET_MY_SAMPLE_RATE(h) (HDR_GET_SAMPLE_RATE(h) + (((h[1] >> 3) & 1) + ((h[1] >> 4) & 1))*3) +#define HDR_IS_FRAME_576(h) ((h[1] & 14) == 2) +#define HDR_IS_LAYER_1(h) ((h[1] & 6) == 6) + +#define BITS_DEQUANTIZER_OUT -1 +#define MAX_SCF (255 + BITS_DEQUANTIZER_OUT*4 - 210) +#define MAX_SCFI ((MAX_SCF + 3) & ~3) + +#define MINIMP3_MIN(a, b) ((a) > (b) ? (b) : (a)) +#define MINIMP3_MAX(a, b) ((a) < (b) ? (b) : (a)) + +#if !defined(MINIMP3_NO_SIMD) + +#if !defined(MINIMP3_ONLY_SIMD) && (defined(_M_X64) || defined(__x86_64__) || defined(__aarch64__) || defined(_M_ARM64)) +/* x64 always have SSE2, arm64 always have neon, no need for generic code */ +#define MINIMP3_ONLY_SIMD +#endif /* SIMD checks... */ + +#if (defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))) || ((defined(__i386__) || defined(__x86_64__)) && defined(__SSE2__)) +#if defined(_MSC_VER) +#include +#endif /* defined(_MSC_VER) */ +#include +#define HAVE_SSE 1 +#define HAVE_SIMD 1 +#define VSTORE _mm_storeu_ps +#define VLD _mm_loadu_ps +#define VSET _mm_set1_ps +#define VADD _mm_add_ps +#define VSUB _mm_sub_ps +#define VMUL _mm_mul_ps +#define VMAC(a, x, y) _mm_add_ps(a, _mm_mul_ps(x, y)) +#define VMSB(a, x, y) _mm_sub_ps(a, _mm_mul_ps(x, y)) +#define VMUL_S(x, s) _mm_mul_ps(x, _mm_set1_ps(s)) +#define VREV(x) _mm_shuffle_ps(x, x, _MM_SHUFFLE(0, 1, 2, 3)) +typedef __m128 f4; +#if defined(_MSC_VER) || defined(MINIMP3_ONLY_SIMD) +#define minimp3_cpuid __cpuid +#else /* defined(_MSC_VER) || defined(MINIMP3_ONLY_SIMD) */ +static __inline__ __attribute__((always_inline)) void minimp3_cpuid(int CPUInfo[], const int InfoType) +{ +#if defined(__PIC__) + __asm__ __volatile__( +#if defined(__x86_64__) + "push %%rbx\n" + "cpuid\n" + "xchgl %%ebx, %1\n" + "pop %%rbx\n" +#else /* defined(__x86_64__) */ + "xchgl %%ebx, %1\n" + "cpuid\n" + "xchgl %%ebx, %1\n" +#endif /* defined(__x86_64__) */ + : "=a" (CPUInfo[0]), "=r" (CPUInfo[1]), "=c" (CPUInfo[2]), "=d" (CPUInfo[3]) + : "a" (InfoType)); +#else /* defined(__PIC__) */ + __asm__ __volatile__( + "cpuid" + : "=a" (CPUInfo[0]), "=b" (CPUInfo[1]), "=c" (CPUInfo[2]), "=d" (CPUInfo[3]) + : "a" (InfoType)); +#endif /* defined(__PIC__)*/ +} +#endif /* defined(_MSC_VER) || defined(MINIMP3_ONLY_SIMD) */ +static int have_simd(void) +{ +#ifdef MINIMP3_ONLY_SIMD + return 1; +#else /* MINIMP3_ONLY_SIMD */ + static int g_have_simd; + int CPUInfo[4]; +#ifdef MINIMP3_TEST + static int g_counter; + if (g_counter++ > 100) + return 0; +#endif /* MINIMP3_TEST */ + if (g_have_simd) + goto end; + minimp3_cpuid(CPUInfo, 0); + g_have_simd = 1; + if (CPUInfo[0] > 0) + { + minimp3_cpuid(CPUInfo, 1); + g_have_simd = (CPUInfo[3] & (1 << 26)) + 1; /* SSE2 */ + } +end: + return g_have_simd - 1; +#endif /* MINIMP3_ONLY_SIMD */ +} +#elif defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM64) +#include +#define HAVE_SSE 0 +#define HAVE_SIMD 1 +#define VSTORE vst1q_f32 +#define VLD vld1q_f32 +#define VSET vmovq_n_f32 +#define VADD vaddq_f32 +#define VSUB vsubq_f32 +#define VMUL vmulq_f32 +#define VMAC(a, x, y) vmlaq_f32(a, x, y) +#define VMSB(a, x, y) vmlsq_f32(a, x, y) +#define VMUL_S(x, s) vmulq_f32(x, vmovq_n_f32(s)) +#define VREV(x) vcombine_f32(vget_high_f32(vrev64q_f32(x)), vget_low_f32(vrev64q_f32(x))) +typedef float32x4_t f4; +static int have_simd() +{ /* TODO: detect neon for !MINIMP3_ONLY_SIMD */ + return 1; +} +#else /* SIMD checks... */ +#define HAVE_SSE 0 +#define HAVE_SIMD 0 +#ifdef MINIMP3_ONLY_SIMD +#error MINIMP3_ONLY_SIMD used, but SSE/NEON not enabled +#endif /* MINIMP3_ONLY_SIMD */ +#endif /* SIMD checks... */ +#else /* !defined(MINIMP3_NO_SIMD) */ +#define HAVE_SIMD 0 +#endif /* !defined(MINIMP3_NO_SIMD) */ + +#if defined(__ARM_ARCH) && (__ARM_ARCH >= 6) && !defined(__aarch64__) && !defined(_M_ARM64) +#define HAVE_ARMV6 1 +static __inline__ __attribute__((always_inline)) int32_t minimp3_clip_int16_arm(int32_t a) +{ + int32_t x = 0; + __asm__ ("ssat %0, #16, %1" : "=r"(x) : "r"(a)); + return x; +} +#else +#define HAVE_ARMV6 0 +#endif + +typedef struct +{ + const uint8_t *buf; + int pos, limit; +} bs_t; + +typedef struct +{ + float scf[3*64]; + uint8_t total_bands, stereo_bands, bitalloc[64], scfcod[64]; +} L12_scale_info; + +typedef struct +{ + uint8_t tab_offset, code_tab_width, band_count; +} L12_subband_alloc_t; + +typedef struct +{ + const uint8_t *sfbtab; + uint16_t part_23_length, big_values, scalefac_compress; + uint8_t global_gain, block_type, mixed_block_flag, n_long_sfb, n_short_sfb; + uint8_t table_select[3], region_count[3], subblock_gain[3]; + uint8_t preflag, scalefac_scale, count1_table, scfsi; +} L3_gr_info_t; + +typedef struct +{ + bs_t bs; + uint8_t maindata[MAX_BITRESERVOIR_BYTES + MAX_L3_FRAME_PAYLOAD_BYTES]; + L3_gr_info_t gr_info[4]; + float grbuf[2][576], scf[40], syn[18 + 15][2*32]; + uint8_t ist_pos[2][39]; +} mp3dec_scratch_t; + +static void bs_init(bs_t *bs, const uint8_t *data, int bytes) +{ + bs->buf = data; + bs->pos = 0; + bs->limit = bytes*8; +} + +static uint32_t get_bits(bs_t *bs, int n) +{ + uint32_t next, cache = 0, s = bs->pos & 7; + int shl = n + s; + const uint8_t *p = bs->buf + (bs->pos >> 3); + if ((bs->pos += n) > bs->limit) + return 0; + next = *p++ & (255 >> s); + while ((shl -= 8) > 0) + { + cache |= next << shl; + next = *p++; + } + return cache | (next >> -shl); +} + +static int hdr_valid(const uint8_t *h) +{ + return h[0] == 0xff && + ((h[1] & 0xF0) == 0xf0 || (h[1] & 0xFE) == 0xe2) && + (HDR_GET_LAYER(h) != 0) && + (HDR_GET_BITRATE(h) != 15) && + (HDR_GET_SAMPLE_RATE(h) != 3); +} + +static int hdr_compare(const uint8_t *h1, const uint8_t *h2) +{ + return hdr_valid(h2) && + ((h1[1] ^ h2[1]) & 0xFE) == 0 && + ((h1[2] ^ h2[2]) & 0x0C) == 0 && + !(HDR_IS_FREE_FORMAT(h1) ^ HDR_IS_FREE_FORMAT(h2)); +} + +static unsigned hdr_bitrate_kbps(const uint8_t *h) +{ + static const uint8_t halfrate[2][3][15] = { + { { 0,4,8,12,16,20,24,28,32,40,48,56,64,72,80 }, { 0,4,8,12,16,20,24,28,32,40,48,56,64,72,80 }, { 0,16,24,28,32,40,48,56,64,72,80,88,96,112,128 } }, + { { 0,16,20,24,28,32,40,48,56,64,80,96,112,128,160 }, { 0,16,24,28,32,40,48,56,64,80,96,112,128,160,192 }, { 0,16,32,48,64,80,96,112,128,144,160,176,192,208,224 } }, + }; + return 2*halfrate[!!HDR_TEST_MPEG1(h)][HDR_GET_LAYER(h) - 1][HDR_GET_BITRATE(h)]; +} + +static unsigned hdr_sample_rate_hz(const uint8_t *h) +{ + static const unsigned g_hz[3] = { 44100, 48000, 32000 }; + return g_hz[HDR_GET_SAMPLE_RATE(h)] >> (int)!HDR_TEST_MPEG1(h) >> (int)!HDR_TEST_NOT_MPEG25(h); +} + +static unsigned hdr_frame_samples(const uint8_t *h) +{ + return HDR_IS_LAYER_1(h) ? 384 : (1152 >> (int)HDR_IS_FRAME_576(h)); +} + +static int hdr_frame_bytes(const uint8_t *h, int free_format_size) +{ + int frame_bytes = hdr_frame_samples(h)*hdr_bitrate_kbps(h)*125/hdr_sample_rate_hz(h); + if (HDR_IS_LAYER_1(h)) + { + frame_bytes &= ~3; /* slot align */ + } + return frame_bytes ? frame_bytes : free_format_size; +} + +static int hdr_padding(const uint8_t *h) +{ + return HDR_TEST_PADDING(h) ? (HDR_IS_LAYER_1(h) ? 4 : 1) : 0; +} + +#ifndef MINIMP3_ONLY_MP3 +static const L12_subband_alloc_t *L12_subband_alloc_table(const uint8_t *hdr, L12_scale_info *sci) +{ + const L12_subband_alloc_t *alloc; + int mode = HDR_GET_STEREO_MODE(hdr); + int nbands, stereo_bands = (mode == MODE_MONO) ? 0 : (mode == MODE_JOINT_STEREO) ? (HDR_GET_STEREO_MODE_EXT(hdr) << 2) + 4 : 32; + + if (HDR_IS_LAYER_1(hdr)) + { + static const L12_subband_alloc_t g_alloc_L1[] = { { 76, 4, 32 } }; + alloc = g_alloc_L1; + nbands = 32; + } else if (!HDR_TEST_MPEG1(hdr)) + { + static const L12_subband_alloc_t g_alloc_L2M2[] = { { 60, 4, 4 }, { 44, 3, 7 }, { 44, 2, 19 } }; + alloc = g_alloc_L2M2; + nbands = 30; + } else + { + static const L12_subband_alloc_t g_alloc_L2M1[] = { { 0, 4, 3 }, { 16, 4, 8 }, { 32, 3, 12 }, { 40, 2, 7 } }; + int sample_rate_idx = HDR_GET_SAMPLE_RATE(hdr); + unsigned kbps = hdr_bitrate_kbps(hdr) >> (int)(mode != MODE_MONO); + if (!kbps) /* free-format */ + { + kbps = 192; + } + + alloc = g_alloc_L2M1; + nbands = 27; + if (kbps < 56) + { + static const L12_subband_alloc_t g_alloc_L2M1_lowrate[] = { { 44, 4, 2 }, { 44, 3, 10 } }; + alloc = g_alloc_L2M1_lowrate; + nbands = sample_rate_idx == 2 ? 12 : 8; + } else if (kbps >= 96 && sample_rate_idx != 1) + { + nbands = 30; + } + } + + sci->total_bands = (uint8_t)nbands; + sci->stereo_bands = (uint8_t)MINIMP3_MIN(stereo_bands, nbands); + + return alloc; +} + +static void L12_read_scalefactors(bs_t *bs, uint8_t *pba, uint8_t *scfcod, int bands, float *scf) +{ + static const float g_deq_L12[18*3] = { +#define DQ(x) 9.53674316e-07f/x, 7.56931807e-07f/x, 6.00777173e-07f/x + DQ(3),DQ(7),DQ(15),DQ(31),DQ(63),DQ(127),DQ(255),DQ(511),DQ(1023),DQ(2047),DQ(4095),DQ(8191),DQ(16383),DQ(32767),DQ(65535),DQ(3),DQ(5),DQ(9) + }; + int i, m; + for (i = 0; i < bands; i++) + { + float s = 0; + int ba = *pba++; + int mask = ba ? 4 + ((19 >> scfcod[i]) & 3) : 0; + for (m = 4; m; m >>= 1) + { + if (mask & m) + { + int b = get_bits(bs, 6); + s = g_deq_L12[ba*3 - 6 + b % 3]*(1 << 21 >> b/3); + } + *scf++ = s; + } + } +} + +static void L12_read_scale_info(const uint8_t *hdr, bs_t *bs, L12_scale_info *sci) +{ + static const uint8_t g_bitalloc_code_tab[] = { + 0,17, 3, 4, 5,6,7, 8,9,10,11,12,13,14,15,16, + 0,17,18, 3,19,4,5, 6,7, 8, 9,10,11,12,13,16, + 0,17,18, 3,19,4,5,16, + 0,17,18,16, + 0,17,18,19, 4,5,6, 7,8, 9,10,11,12,13,14,15, + 0,17,18, 3,19,4,5, 6,7, 8, 9,10,11,12,13,14, + 0, 2, 3, 4, 5,6,7, 8,9,10,11,12,13,14,15,16 + }; + const L12_subband_alloc_t *subband_alloc = L12_subband_alloc_table(hdr, sci); + + int i, k = 0, ba_bits = 0; + const uint8_t *ba_code_tab = g_bitalloc_code_tab; + + for (i = 0; i < sci->total_bands; i++) + { + uint8_t ba; + if (i == k) + { + k += subband_alloc->band_count; + ba_bits = subband_alloc->code_tab_width; + ba_code_tab = g_bitalloc_code_tab + subband_alloc->tab_offset; + subband_alloc++; + } + ba = ba_code_tab[get_bits(bs, ba_bits)]; + sci->bitalloc[2*i] = ba; + if (i < sci->stereo_bands) + { + ba = ba_code_tab[get_bits(bs, ba_bits)]; + } + sci->bitalloc[2*i + 1] = sci->stereo_bands ? ba : 0; + } + + for (i = 0; i < 2*sci->total_bands; i++) + { + sci->scfcod[i] = sci->bitalloc[i] ? HDR_IS_LAYER_1(hdr) ? 2 : get_bits(bs, 2) : 6; + } + + L12_read_scalefactors(bs, sci->bitalloc, sci->scfcod, sci->total_bands*2, sci->scf); + + for (i = sci->stereo_bands; i < sci->total_bands; i++) + { + sci->bitalloc[2*i + 1] = 0; + } +} + +static int L12_dequantize_granule(float *grbuf, bs_t *bs, L12_scale_info *sci, int group_size) +{ + int i, j, k, choff = 576; + for (j = 0; j < 4; j++) + { + float *dst = grbuf + group_size*j; + for (i = 0; i < 2*sci->total_bands; i++) + { + int ba = sci->bitalloc[i]; + if (ba != 0) + { + if (ba < 17) + { + int half = (1 << (ba - 1)) - 1; + for (k = 0; k < group_size; k++) + { + dst[k] = (float)((int)get_bits(bs, ba) - half); + } + } else + { + unsigned mod = (2 << (ba - 17)) + 1; /* 3, 5, 9 */ + unsigned code = get_bits(bs, mod + 2 - (mod >> 3)); /* 5, 7, 10 */ + for (k = 0; k < group_size; k++, code /= mod) + { + dst[k] = (float)((int)(code % mod - mod/2)); + } + } + } + dst += choff; + choff = 18 - choff; + } + } + return group_size*4; +} + +static void L12_apply_scf_384(L12_scale_info *sci, const float *scf, float *dst) +{ + int i, k; + memcpy(dst + 576 + sci->stereo_bands*18, dst + sci->stereo_bands*18, (sci->total_bands - sci->stereo_bands)*18*sizeof(float)); + for (i = 0; i < sci->total_bands; i++, dst += 18, scf += 6) + { + for (k = 0; k < 12; k++) + { + dst[k + 0] *= scf[0]; + dst[k + 576] *= scf[3]; + } + } +} +#endif /* MINIMP3_ONLY_MP3 */ + +static int L3_read_side_info(bs_t *bs, L3_gr_info_t *gr, const uint8_t *hdr) +{ + static const uint8_t g_scf_long[8][23] = { + { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, + { 12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2,0 }, + { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, + { 6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,54,62,70,76,36,0 }, + { 6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54,0 }, + { 4,4,4,4,4,4,6,6,8,8,10,12,16,20,24,28,34,42,50,54,76,158,0 }, + { 4,4,4,4,4,4,6,6,6,8,10,12,16,18,22,28,34,40,46,54,54,192,0 }, + { 4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102,26,0 } + }; + static const uint8_t g_scf_short[8][40] = { + { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, + { 8,8,8,8,8,8,8,8,8,12,12,12,16,16,16,20,20,20,24,24,24,28,28,28,36,36,36,2,2,2,2,2,2,2,2,2,26,26,26,0 }, + { 4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,8,8,8,10,10,10,14,14,14,18,18,18,26,26,26,32,32,32,42,42,42,18,18,18,0 }, + { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,32,32,32,44,44,44,12,12,12,0 }, + { 4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, + { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,22,22,22,30,30,30,56,56,56,0 }, + { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,10,10,10,12,12,12,14,14,14,16,16,16,20,20,20,26,26,26,66,66,66,0 }, + { 4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,8,8,8,12,12,12,16,16,16,20,20,20,26,26,26,34,34,34,42,42,42,12,12,12,0 } + }; + static const uint8_t g_scf_mixed[8][40] = { + { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, + { 12,12,12,4,4,4,8,8,8,12,12,12,16,16,16,20,20,20,24,24,24,28,28,28,36,36,36,2,2,2,2,2,2,2,2,2,26,26,26,0 }, + { 6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,14,14,14,18,18,18,26,26,26,32,32,32,42,42,42,18,18,18,0 }, + { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,32,32,32,44,44,44,12,12,12,0 }, + { 6,6,6,6,6,6,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,24,24,24,30,30,30,40,40,40,18,18,18,0 }, + { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,14,14,18,18,18,22,22,22,30,30,30,56,56,56,0 }, + { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,6,6,6,10,10,10,12,12,12,14,14,14,16,16,16,20,20,20,26,26,26,66,66,66,0 }, + { 4,4,4,4,4,4,6,6,4,4,4,6,6,6,8,8,8,12,12,12,16,16,16,20,20,20,26,26,26,34,34,34,42,42,42,12,12,12,0 } + }; + + unsigned tables, scfsi = 0; + int main_data_begin, part_23_sum = 0; + int sr_idx = HDR_GET_MY_SAMPLE_RATE(hdr); sr_idx -= (sr_idx != 0); + int gr_count = HDR_IS_MONO(hdr) ? 1 : 2; + + if (HDR_TEST_MPEG1(hdr)) + { + gr_count *= 2; + main_data_begin = get_bits(bs, 9); + scfsi = get_bits(bs, 7 + gr_count); + } else + { + main_data_begin = get_bits(bs, 8 + gr_count) >> gr_count; + } + + do + { + if (HDR_IS_MONO(hdr)) + { + scfsi <<= 4; + } + gr->part_23_length = (uint16_t)get_bits(bs, 12); + part_23_sum += gr->part_23_length; + gr->big_values = (uint16_t)get_bits(bs, 9); + if (gr->big_values > 288) + { + return -1; + } + gr->global_gain = (uint8_t)get_bits(bs, 8); + gr->scalefac_compress = (uint16_t)get_bits(bs, HDR_TEST_MPEG1(hdr) ? 4 : 9); + gr->sfbtab = g_scf_long[sr_idx]; + gr->n_long_sfb = 22; + gr->n_short_sfb = 0; + if (get_bits(bs, 1)) + { + gr->block_type = (uint8_t)get_bits(bs, 2); + if (!gr->block_type) + { + return -1; + } + gr->mixed_block_flag = (uint8_t)get_bits(bs, 1); + gr->region_count[0] = 7; + gr->region_count[1] = 255; + if (gr->block_type == SHORT_BLOCK_TYPE) + { + scfsi &= 0x0F0F; + if (!gr->mixed_block_flag) + { + gr->region_count[0] = 8; + gr->sfbtab = g_scf_short[sr_idx]; + gr->n_long_sfb = 0; + gr->n_short_sfb = 39; + } else + { + gr->sfbtab = g_scf_mixed[sr_idx]; + gr->n_long_sfb = HDR_TEST_MPEG1(hdr) ? 8 : 6; + gr->n_short_sfb = 30; + } + } + tables = get_bits(bs, 10); + tables <<= 5; + gr->subblock_gain[0] = (uint8_t)get_bits(bs, 3); + gr->subblock_gain[1] = (uint8_t)get_bits(bs, 3); + gr->subblock_gain[2] = (uint8_t)get_bits(bs, 3); + } else + { + gr->block_type = 0; + gr->mixed_block_flag = 0; + tables = get_bits(bs, 15); + gr->region_count[0] = (uint8_t)get_bits(bs, 4); + gr->region_count[1] = (uint8_t)get_bits(bs, 3); + gr->region_count[2] = 255; + } + gr->table_select[0] = (uint8_t)(tables >> 10); + gr->table_select[1] = (uint8_t)((tables >> 5) & 31); + gr->table_select[2] = (uint8_t)((tables) & 31); + gr->preflag = HDR_TEST_MPEG1(hdr) ? get_bits(bs, 1) : (gr->scalefac_compress >= 500); + gr->scalefac_scale = (uint8_t)get_bits(bs, 1); + gr->count1_table = (uint8_t)get_bits(bs, 1); + gr->scfsi = (uint8_t)((scfsi >> 12) & 15); + scfsi <<= 4; + gr++; + } while(--gr_count); + + if (part_23_sum + bs->pos > bs->limit + main_data_begin*8) + { + return -1; + } + + return main_data_begin; +} + +static void L3_read_scalefactors(uint8_t *scf, uint8_t *ist_pos, const uint8_t *scf_size, const uint8_t *scf_count, bs_t *bitbuf, int scfsi) +{ + int i, k; + for (i = 0; i < 4 && scf_count[i]; i++, scfsi *= 2) + { + int cnt = scf_count[i]; + if (scfsi & 8) + { + memcpy(scf, ist_pos, cnt); + } else + { + int bits = scf_size[i]; + if (!bits) + { + memset(scf, 0, cnt); + memset(ist_pos, 0, cnt); + } else + { + int max_scf = (scfsi < 0) ? (1 << bits) - 1 : -1; + for (k = 0; k < cnt; k++) + { + int s = get_bits(bitbuf, bits); + ist_pos[k] = (s == max_scf ? -1 : s); + scf[k] = s; + } + } + } + ist_pos += cnt; + scf += cnt; + } + scf[0] = scf[1] = scf[2] = 0; +} + +static float L3_ldexp_q2(float y, int exp_q2) +{ + static const float g_expfrac[4] = { 9.31322575e-10f,7.83145814e-10f,6.58544508e-10f,5.53767716e-10f }; + int e; + do + { + e = MINIMP3_MIN(30*4, exp_q2); + y *= g_expfrac[e & 3]*(1 << 30 >> (e >> 2)); + } while ((exp_q2 -= e) > 0); + return y; +} + +static void L3_decode_scalefactors(const uint8_t *hdr, uint8_t *ist_pos, bs_t *bs, const L3_gr_info_t *gr, float *scf, int ch) +{ + static const uint8_t g_scf_partitions[3][28] = { + { 6,5,5, 5,6,5,5,5,6,5, 7,3,11,10,0,0, 7, 7, 7,0, 6, 6,6,3, 8, 8,5,0 }, + { 8,9,6,12,6,9,9,9,6,9,12,6,15,18,0,0, 6,15,12,0, 6,12,9,6, 6,18,9,0 }, + { 9,9,6,12,9,9,9,9,9,9,12,6,18,18,0,0,12,12,12,0,12, 9,9,6,15,12,9,0 } + }; + const uint8_t *scf_partition = g_scf_partitions[!!gr->n_short_sfb + !gr->n_long_sfb]; + uint8_t scf_size[4], iscf[40]; + int i, scf_shift = gr->scalefac_scale + 1, gain_exp, scfsi = gr->scfsi; + float gain; + + if (HDR_TEST_MPEG1(hdr)) + { + static const uint8_t g_scfc_decode[16] = { 0,1,2,3, 12,5,6,7, 9,10,11,13, 14,15,18,19 }; + int part = g_scfc_decode[gr->scalefac_compress]; + scf_size[1] = scf_size[0] = (uint8_t)(part >> 2); + scf_size[3] = scf_size[2] = (uint8_t)(part & 3); + } else + { + static const uint8_t g_mod[6*4] = { 5,5,4,4,5,5,4,1,4,3,1,1,5,6,6,1,4,4,4,1,4,3,1,1 }; + int k, modprod, sfc, ist = HDR_TEST_I_STEREO(hdr) && ch; + sfc = gr->scalefac_compress >> ist; + for (k = ist*3*4; sfc >= 0; sfc -= modprod, k += 4) + { + for (modprod = 1, i = 3; i >= 0; i--) + { + scf_size[i] = (uint8_t)(sfc / modprod % g_mod[k + i]); + modprod *= g_mod[k + i]; + } + } + scf_partition += k; + scfsi = -16; + } + L3_read_scalefactors(iscf, ist_pos, scf_size, scf_partition, bs, scfsi); + + if (gr->n_short_sfb) + { + int sh = 3 - scf_shift; + for (i = 0; i < gr->n_short_sfb; i += 3) + { + iscf[gr->n_long_sfb + i + 0] += gr->subblock_gain[0] << sh; + iscf[gr->n_long_sfb + i + 1] += gr->subblock_gain[1] << sh; + iscf[gr->n_long_sfb + i + 2] += gr->subblock_gain[2] << sh; + } + } else if (gr->preflag) + { + static const uint8_t g_preamp[10] = { 1,1,1,1,2,2,3,3,3,2 }; + for (i = 0; i < 10; i++) + { + iscf[11 + i] += g_preamp[i]; + } + } + + gain_exp = gr->global_gain + BITS_DEQUANTIZER_OUT*4 - 210 - (HDR_IS_MS_STEREO(hdr) ? 2 : 0); + gain = L3_ldexp_q2(1 << (MAX_SCFI/4), MAX_SCFI - gain_exp); + for (i = 0; i < (int)(gr->n_long_sfb + gr->n_short_sfb); i++) + { + scf[i] = L3_ldexp_q2(gain, iscf[i] << scf_shift); + } +} + +static const float g_pow43[129 + 16] = { + 0,-1,-2.519842f,-4.326749f,-6.349604f,-8.549880f,-10.902724f,-13.390518f,-16.000000f,-18.720754f,-21.544347f,-24.463781f,-27.473142f,-30.567351f,-33.741992f,-36.993181f, + 0,1,2.519842f,4.326749f,6.349604f,8.549880f,10.902724f,13.390518f,16.000000f,18.720754f,21.544347f,24.463781f,27.473142f,30.567351f,33.741992f,36.993181f,40.317474f,43.711787f,47.173345f,50.699631f,54.288352f,57.937408f,61.644865f,65.408941f,69.227979f,73.100443f,77.024898f,81.000000f,85.024491f,89.097188f,93.216975f,97.382800f,101.593667f,105.848633f,110.146801f,114.487321f,118.869381f,123.292209f,127.755065f,132.257246f,136.798076f,141.376907f,145.993119f,150.646117f,155.335327f,160.060199f,164.820202f,169.614826f,174.443577f,179.305980f,184.201575f,189.129918f,194.090580f,199.083145f,204.107210f,209.162385f,214.248292f,219.364564f,224.510845f,229.686789f,234.892058f,240.126328f,245.389280f,250.680604f,256.000000f,261.347174f,266.721841f,272.123723f,277.552547f,283.008049f,288.489971f,293.998060f,299.532071f,305.091761f,310.676898f,316.287249f,321.922592f,327.582707f,333.267377f,338.976394f,344.709550f,350.466646f,356.247482f,362.051866f,367.879608f,373.730522f,379.604427f,385.501143f,391.420496f,397.362314f,403.326427f,409.312672f,415.320884f,421.350905f,427.402579f,433.475750f,439.570269f,445.685987f,451.822757f,457.980436f,464.158883f,470.357960f,476.577530f,482.817459f,489.077615f,495.357868f,501.658090f,507.978156f,514.317941f,520.677324f,527.056184f,533.454404f,539.871867f,546.308458f,552.764065f,559.238575f,565.731879f,572.243870f,578.774440f,585.323483f,591.890898f,598.476581f,605.080431f,611.702349f,618.342238f,625.000000f,631.675540f,638.368763f,645.079578f +}; + +static float L3_pow_43(int x) +{ + float frac; + int sign, mult = 256; + + if (x < 129) + { + return g_pow43[16 + x]; + } + + if (x < 1024) + { + mult = 16; + x <<= 3; + } + + sign = 2*x & 64; + frac = (float)((x & 63) - sign) / ((x & ~63) + sign); + return g_pow43[16 + ((x + sign) >> 6)]*(1.f + frac*((4.f/3) + frac*(2.f/9)))*mult; +} + +static void L3_huffman(float *dst, bs_t *bs, const L3_gr_info_t *gr_info, const float *scf, int layer3gr_limit) +{ + static const int16_t tabs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 785,785,785,785,784,784,784,784,513,513,513,513,513,513,513,513,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256, + -255,1313,1298,1282,785,785,785,785,784,784,784,784,769,769,769,769,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,290,288, + -255,1313,1298,1282,769,769,769,769,529,529,529,529,529,529,529,529,528,528,528,528,528,528,528,528,512,512,512,512,512,512,512,512,290,288, + -253,-318,-351,-367,785,785,785,785,784,784,784,784,769,769,769,769,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,819,818,547,547,275,275,275,275,561,560,515,546,289,274,288,258, + -254,-287,1329,1299,1314,1312,1057,1057,1042,1042,1026,1026,784,784,784,784,529,529,529,529,529,529,529,529,769,769,769,769,768,768,768,768,563,560,306,306,291,259, + -252,-413,-477,-542,1298,-575,1041,1041,784,784,784,784,769,769,769,769,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,-383,-399,1107,1092,1106,1061,849,849,789,789,1104,1091,773,773,1076,1075,341,340,325,309,834,804,577,577,532,532,516,516,832,818,803,816,561,561,531,531,515,546,289,289,288,258, + 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-251,-572,-733,-830,-863,-879,1041,1041,784,784,784,784,769,769,769,769,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,-511,-527,-543,1396,1351,1381,1366,1395,1335,1380,-559,1334,1138,1138,1063,1063,1350,1392,1031,1031,1062,1062,1364,1363,1120,1120,1333,1348,881,881,881,881,375,374,359,373,343,358,341,325,791,791,1123,1122,-703,1105,1045,-719,865,865,790,790,774,774,1104,1029,338,293,323,308,-799,-815,833,788,772,818,803,816,322,292,307,320,561,531,515,546,289,274,288,258, + -251,-525,-605,-685,-765,-831,-846,1298,1057,1057,1312,1282,785,785,785,785,784,784,784,784,769,769,769,769,512,512,512,512,512,512,512,512,1399,1398,1383,1367,1382,1396,1351,-511,1381,1366,1139,1139,1079,1079,1124,1124,1364,1349,1363,1333,882,882,882,882,807,807,807,807,1094,1094,1136,1136,373,341,535,535,881,775,867,822,774,-591,324,338,-671,849,550,550,866,864,609,609,293,336,534,534,789,835,773,-751,834,804,308,307,833,788,832,772,562,562,547,547,305,275,560,515,290,290, + -252,-397,-477,-557,-622,-653,-719,-735,-750,1329,1299,1314,1057,1057,1042,1042,1312,1282,1024,1024,785,785,785,785,784,784,784,784,769,769,769,769,-383,1127,1141,1111,1126,1140,1095,1110,869,869,883,883,1079,1109,882,882,375,374,807,868,838,881,791,-463,867,822,368,263,852,837,836,-543,610,610,550,550,352,336,534,534,865,774,851,821,850,805,593,533,579,564,773,832,578,578,548,548,577,577,307,276,306,291,516,560,259,259, + 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+ 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+ 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+ 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}; + static const uint8_t tab32[] = { 130,162,193,209,44,28,76,140,9,9,9,9,9,9,9,9,190,254,222,238,126,94,157,157,109,61,173,205 }; + static const uint8_t tab33[] = { 252,236,220,204,188,172,156,140,124,108,92,76,60,44,28,12 }; + static const int16_t tabindex[2*16] = { 0,32,64,98,0,132,180,218,292,364,426,538,648,746,0,1126,1460,1460,1460,1460,1460,1460,1460,1460,1842,1842,1842,1842,1842,1842,1842,1842 }; + static const uint8_t g_linbits[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,6,8,10,13,4,5,6,7,8,9,11,13 }; + +#define PEEK_BITS(n) (bs_cache >> (32 - n)) +#define FLUSH_BITS(n) { bs_cache <<= (n); bs_sh += (n); } +#define CHECK_BITS while (bs_sh >= 0) { bs_cache |= (uint32_t)*bs_next_ptr++ << bs_sh; bs_sh -= 8; } +#define BSPOS ((bs_next_ptr - bs->buf)*8 - 24 + bs_sh) + + float one = 0.0f; + int ireg = 0, big_val_cnt = gr_info->big_values; + const uint8_t *sfb = gr_info->sfbtab; + const uint8_t *bs_next_ptr = bs->buf + bs->pos/8; + uint32_t bs_cache = (((bs_next_ptr[0]*256u + bs_next_ptr[1])*256u + bs_next_ptr[2])*256u + bs_next_ptr[3]) << (bs->pos & 7); + int pairs_to_decode, np, bs_sh = (bs->pos & 7) - 8; + bs_next_ptr += 4; + + while (big_val_cnt > 0) + { + int tab_num = gr_info->table_select[ireg]; + int sfb_cnt = gr_info->region_count[ireg++]; + const int16_t *codebook = tabs + tabindex[tab_num]; + int linbits = g_linbits[tab_num]; + if (linbits) + { + do + { + np = *sfb++ / 2; + pairs_to_decode = MINIMP3_MIN(big_val_cnt, np); + one = *scf++; + do + { + int j, w = 5; + int leaf = codebook[PEEK_BITS(w)]; + while (leaf < 0) + { + FLUSH_BITS(w); + w = leaf & 7; + leaf = codebook[PEEK_BITS(w) - (leaf >> 3)]; + } + FLUSH_BITS(leaf >> 8); + + for (j = 0; j < 2; j++, dst++, leaf >>= 4) + { + int lsb = leaf & 0x0F; + if (lsb == 15) + { + lsb += PEEK_BITS(linbits); + FLUSH_BITS(linbits); + CHECK_BITS; + *dst = one*L3_pow_43(lsb)*((int32_t)bs_cache < 0 ? -1: 1); + } else + { + *dst = g_pow43[16 + lsb - 16*(bs_cache >> 31)]*one; + } + FLUSH_BITS(lsb ? 1 : 0); + } + CHECK_BITS; + } while (--pairs_to_decode); + } while ((big_val_cnt -= np) > 0 && --sfb_cnt >= 0); + } else + { + do + { + np = *sfb++ / 2; + pairs_to_decode = MINIMP3_MIN(big_val_cnt, np); + one = *scf++; + do + { + int j, w = 5; + int leaf = codebook[PEEK_BITS(w)]; + while (leaf < 0) + { + FLUSH_BITS(w); + w = leaf & 7; + leaf = codebook[PEEK_BITS(w) - (leaf >> 3)]; + } + FLUSH_BITS(leaf >> 8); + + for (j = 0; j < 2; j++, dst++, leaf >>= 4) + { + int lsb = leaf & 0x0F; + *dst = g_pow43[16 + lsb - 16*(bs_cache >> 31)]*one; + FLUSH_BITS(lsb ? 1 : 0); + } + CHECK_BITS; + } while (--pairs_to_decode); + } while ((big_val_cnt -= np) > 0 && --sfb_cnt >= 0); + } + } + + for (np = 1 - big_val_cnt;; dst += 4) + { + const uint8_t *codebook_count1 = (gr_info->count1_table) ? tab33 : tab32; + int leaf = codebook_count1[PEEK_BITS(4)]; + if (!(leaf & 8)) + { + leaf = codebook_count1[(leaf >> 3) + (bs_cache << 4 >> (32 - (leaf & 3)))]; + } + FLUSH_BITS(leaf & 7); + if (BSPOS > layer3gr_limit) + { + break; + } +#define RELOAD_SCALEFACTOR if (!--np) { np = *sfb++/2; if (!np) break; one = *scf++; } +#define DEQ_COUNT1(s) if (leaf & (128 >> s)) { dst[s] = ((int32_t)bs_cache < 0) ? -one : one; FLUSH_BITS(1) } + RELOAD_SCALEFACTOR; + DEQ_COUNT1(0); + DEQ_COUNT1(1); + RELOAD_SCALEFACTOR; + DEQ_COUNT1(2); + DEQ_COUNT1(3); + CHECK_BITS; + } + + bs->pos = layer3gr_limit; +} + +static void L3_midside_stereo(float *left, int n) +{ + int i = 0; + float *right = left + 576; +#if HAVE_SIMD + if (have_simd()) + { + for (; i < n - 3; i += 4) + { + f4 vl = VLD(left + i); + f4 vr = VLD(right + i); + VSTORE(left + i, VADD(vl, vr)); + VSTORE(right + i, VSUB(vl, vr)); + } +#ifdef __GNUC__ + /* Workaround for spurious -Waggressive-loop-optimizations warning from gcc. + * For more info see: https://github.com/lieff/minimp3/issues/88 + */ + if (__builtin_constant_p(n % 4 == 0) && n % 4 == 0) + return; +#endif + } +#endif /* HAVE_SIMD */ + for (; i < n; i++) + { + float a = left[i]; + float b = right[i]; + left[i] = a + b; + right[i] = a - b; + } +} + +static void L3_intensity_stereo_band(float *left, int n, float kl, float kr) +{ + int i; + for (i = 0; i < n; i++) + { + left[i + 576] = left[i]*kr; + left[i] = left[i]*kl; + } +} + +static void L3_stereo_top_band(const float *right, const uint8_t *sfb, int nbands, int max_band[3]) +{ + int i, k; + + max_band[0] = max_band[1] = max_band[2] = -1; + + for (i = 0; i < nbands; i++) + { + for (k = 0; k < sfb[i]; k += 2) + { + if (right[k] != 0 || right[k + 1] != 0) + { + max_band[i % 3] = i; + break; + } + } + right += sfb[i]; + } +} + +static void L3_stereo_process(float *left, const uint8_t *ist_pos, const uint8_t *sfb, const uint8_t *hdr, int max_band[3], int mpeg2_sh) +{ + static const float g_pan[7*2] = { 0,1,0.21132487f,0.78867513f,0.36602540f,0.63397460f,0.5f,0.5f,0.63397460f,0.36602540f,0.78867513f,0.21132487f,1,0 }; + unsigned i, max_pos = HDR_TEST_MPEG1(hdr) ? 7 : 64; + + for (i = 0; sfb[i]; i++) + { + unsigned ipos = ist_pos[i]; + if ((int)i > max_band[i % 3] && ipos < max_pos) + { + float kl, kr, s = HDR_TEST_MS_STEREO(hdr) ? 1.41421356f : 1; + if (HDR_TEST_MPEG1(hdr)) + { + kl = g_pan[2*ipos]; + kr = g_pan[2*ipos + 1]; + } else + { + kl = 1; + kr = L3_ldexp_q2(1, (ipos + 1) >> 1 << mpeg2_sh); + if (ipos & 1) + { + kl = kr; + kr = 1; + } + } + L3_intensity_stereo_band(left, sfb[i], kl*s, kr*s); + } else if (HDR_TEST_MS_STEREO(hdr)) + { + L3_midside_stereo(left, sfb[i]); + } + left += sfb[i]; + } +} + +static void L3_intensity_stereo(float *left, uint8_t *ist_pos, const L3_gr_info_t *gr, const uint8_t *hdr) +{ + int max_band[3], n_sfb = gr->n_long_sfb + gr->n_short_sfb; + int i, max_blocks = gr->n_short_sfb ? 3 : 1; + + L3_stereo_top_band(left + 576, gr->sfbtab, n_sfb, max_band); + if (gr->n_long_sfb) + { + max_band[0] = max_band[1] = max_band[2] = MINIMP3_MAX(MINIMP3_MAX(max_band[0], max_band[1]), max_band[2]); + } + for (i = 0; i < max_blocks; i++) + { + int default_pos = HDR_TEST_MPEG1(hdr) ? 3 : 0; + int itop = n_sfb - max_blocks + i; + int prev = itop - max_blocks; + ist_pos[itop] = max_band[i] >= prev ? default_pos : ist_pos[prev]; + } + L3_stereo_process(left, ist_pos, gr->sfbtab, hdr, max_band, gr[1].scalefac_compress & 1); +} + +static void L3_reorder(float *grbuf, float *scratch, const uint8_t *sfb) +{ + int i, len; + float *src = grbuf, *dst = scratch; + + for (;0 != (len = *sfb); sfb += 3, src += 2*len) + { + for (i = 0; i < len; i++, src++) + { + *dst++ = src[0*len]; + *dst++ = src[1*len]; + *dst++ = src[2*len]; + } + } + memcpy(grbuf, scratch, (dst - scratch)*sizeof(float)); +} + +static void L3_antialias(float *grbuf, int nbands) +{ + static const float g_aa[2][8] = { + {0.85749293f,0.88174200f,0.94962865f,0.98331459f,0.99551782f,0.99916056f,0.99989920f,0.99999316f}, + {0.51449576f,0.47173197f,0.31337745f,0.18191320f,0.09457419f,0.04096558f,0.01419856f,0.00369997f} + }; + + for (; nbands > 0; nbands--, grbuf += 18) + { + int i = 0; +#if HAVE_SIMD + if (have_simd()) for (; i < 8; i += 4) + { + f4 vu = VLD(grbuf + 18 + i); + f4 vd = VLD(grbuf + 14 - i); + f4 vc0 = VLD(g_aa[0] + i); + f4 vc1 = VLD(g_aa[1] + i); + vd = VREV(vd); + VSTORE(grbuf + 18 + i, VSUB(VMUL(vu, vc0), VMUL(vd, vc1))); + vd = VADD(VMUL(vu, vc1), VMUL(vd, vc0)); + VSTORE(grbuf + 14 - i, VREV(vd)); + } +#endif /* HAVE_SIMD */ +#ifndef MINIMP3_ONLY_SIMD + for(; i < 8; i++) + { + float u = grbuf[18 + i]; + float d = grbuf[17 - i]; + grbuf[18 + i] = u*g_aa[0][i] - d*g_aa[1][i]; + grbuf[17 - i] = u*g_aa[1][i] + d*g_aa[0][i]; + } +#endif /* MINIMP3_ONLY_SIMD */ + } +} + +static void L3_dct3_9(float *y) +{ + float s0, s1, s2, s3, s4, s5, s6, s7, s8, t0, t2, t4; + + s0 = y[0]; s2 = y[2]; s4 = y[4]; s6 = y[6]; s8 = y[8]; + t0 = s0 + s6*0.5f; + s0 -= s6; + t4 = (s4 + s2)*0.93969262f; + t2 = (s8 + s2)*0.76604444f; + s6 = (s4 - s8)*0.17364818f; + s4 += s8 - s2; + + s2 = s0 - s4*0.5f; + y[4] = s4 + s0; + s8 = t0 - t2 + s6; + s0 = t0 - t4 + t2; + s4 = t0 + t4 - s6; + + s1 = y[1]; s3 = y[3]; s5 = y[5]; s7 = y[7]; + + s3 *= 0.86602540f; + t0 = (s5 + s1)*0.98480775f; + t4 = (s5 - s7)*0.34202014f; + t2 = (s1 + s7)*0.64278761f; + s1 = (s1 - s5 - s7)*0.86602540f; + + s5 = t0 - s3 - t2; + s7 = t4 - s3 - t0; + s3 = t4 + s3 - t2; + + y[0] = s4 - s7; + y[1] = s2 + s1; + y[2] = s0 - s3; + y[3] = s8 + s5; + y[5] = s8 - s5; + y[6] = s0 + s3; + y[7] = s2 - s1; + y[8] = s4 + s7; +} + +static void L3_imdct36(float *grbuf, float *overlap, const float *window, int nbands) +{ + int i, j; + static const float g_twid9[18] = { + 0.73727734f,0.79335334f,0.84339145f,0.88701083f,0.92387953f,0.95371695f,0.97629601f,0.99144486f,0.99904822f,0.67559021f,0.60876143f,0.53729961f,0.46174861f,0.38268343f,0.30070580f,0.21643961f,0.13052619f,0.04361938f + }; + + for (j = 0; j < nbands; j++, grbuf += 18, overlap += 9) + { + float co[9], si[9]; + co[0] = -grbuf[0]; + si[0] = grbuf[17]; + for (i = 0; i < 4; i++) + { + si[8 - 2*i] = grbuf[4*i + 1] - grbuf[4*i + 2]; + co[1 + 2*i] = grbuf[4*i + 1] + grbuf[4*i + 2]; + si[7 - 2*i] = grbuf[4*i + 4] - grbuf[4*i + 3]; + co[2 + 2*i] = -(grbuf[4*i + 3] + grbuf[4*i + 4]); + } + L3_dct3_9(co); + L3_dct3_9(si); + + si[1] = -si[1]; + si[3] = -si[3]; + si[5] = -si[5]; + si[7] = -si[7]; + + i = 0; + +#if HAVE_SIMD + if (have_simd()) for (; i < 8; i += 4) + { + f4 vovl = VLD(overlap + i); + f4 vc = VLD(co + i); + f4 vs = VLD(si + i); + f4 vr0 = VLD(g_twid9 + i); + f4 vr1 = VLD(g_twid9 + 9 + i); + f4 vw0 = VLD(window + i); + f4 vw1 = VLD(window + 9 + i); + f4 vsum = VADD(VMUL(vc, vr1), VMUL(vs, vr0)); + VSTORE(overlap + i, VSUB(VMUL(vc, vr0), VMUL(vs, vr1))); + VSTORE(grbuf + i, VSUB(VMUL(vovl, vw0), VMUL(vsum, vw1))); + vsum = VADD(VMUL(vovl, vw1), VMUL(vsum, vw0)); + VSTORE(grbuf + 14 - i, VREV(vsum)); + } +#endif /* HAVE_SIMD */ + for (; i < 9; i++) + { + float ovl = overlap[i]; + float sum = co[i]*g_twid9[9 + i] + si[i]*g_twid9[0 + i]; + overlap[i] = co[i]*g_twid9[0 + i] - si[i]*g_twid9[9 + i]; + grbuf[i] = ovl*window[0 + i] - sum*window[9 + i]; + grbuf[17 - i] = ovl*window[9 + i] + sum*window[0 + i]; + } + } +} + +static void L3_idct3(float x0, float x1, float x2, float *dst) +{ + float m1 = x1*0.86602540f; + float a1 = x0 - x2*0.5f; + dst[1] = x0 + x2; + dst[0] = a1 + m1; + dst[2] = a1 - m1; +} + +static void L3_imdct12(float *x, float *dst, float *overlap) +{ + static const float g_twid3[6] = { 0.79335334f,0.92387953f,0.99144486f, 0.60876143f,0.38268343f,0.13052619f }; + float co[3], si[3]; + int i; + + L3_idct3(-x[0], x[6] + x[3], x[12] + x[9], co); + L3_idct3(x[15], x[12] - x[9], x[6] - x[3], si); + si[1] = -si[1]; + + for (i = 0; i < 3; i++) + { + float ovl = overlap[i]; + float sum = co[i]*g_twid3[3 + i] + si[i]*g_twid3[0 + i]; + overlap[i] = co[i]*g_twid3[0 + i] - si[i]*g_twid3[3 + i]; + dst[i] = ovl*g_twid3[2 - i] - sum*g_twid3[5 - i]; + dst[5 - i] = ovl*g_twid3[5 - i] + sum*g_twid3[2 - i]; + } +} + +static void L3_imdct_short(float *grbuf, float *overlap, int nbands) +{ + for (;nbands > 0; nbands--, overlap += 9, grbuf += 18) + { + float tmp[18]; + memcpy(tmp, grbuf, sizeof(tmp)); + memcpy(grbuf, overlap, 6*sizeof(float)); + L3_imdct12(tmp, grbuf + 6, overlap + 6); + L3_imdct12(tmp + 1, grbuf + 12, overlap + 6); + L3_imdct12(tmp + 2, overlap, overlap + 6); + } +} + +static void L3_change_sign(float *grbuf) +{ + int b, i; + for (b = 0, grbuf += 18; b < 32; b += 2, grbuf += 36) + for (i = 1; i < 18; i += 2) + grbuf[i] = -grbuf[i]; +} + +static void L3_imdct_gr(float *grbuf, float *overlap, unsigned block_type, unsigned n_long_bands) +{ + static const float g_mdct_window[2][18] = { + { 0.99904822f,0.99144486f,0.97629601f,0.95371695f,0.92387953f,0.88701083f,0.84339145f,0.79335334f,0.73727734f,0.04361938f,0.13052619f,0.21643961f,0.30070580f,0.38268343f,0.46174861f,0.53729961f,0.60876143f,0.67559021f }, + { 1,1,1,1,1,1,0.99144486f,0.92387953f,0.79335334f,0,0,0,0,0,0,0.13052619f,0.38268343f,0.60876143f } + }; + if (n_long_bands) + { + L3_imdct36(grbuf, overlap, g_mdct_window[0], n_long_bands); + grbuf += 18*n_long_bands; + overlap += 9*n_long_bands; + } + if (block_type == SHORT_BLOCK_TYPE) + L3_imdct_short(grbuf, overlap, 32 - n_long_bands); + else + L3_imdct36(grbuf, overlap, g_mdct_window[block_type == STOP_BLOCK_TYPE], 32 - n_long_bands); +} + +static void L3_save_reservoir(mp3dec_t *h, mp3dec_scratch_t *s) +{ + int pos = (s->bs.pos + 7)/8u; + int remains = s->bs.limit/8u - pos; + if (remains > MAX_BITRESERVOIR_BYTES) + { + pos += remains - MAX_BITRESERVOIR_BYTES; + remains = MAX_BITRESERVOIR_BYTES; + } + if (remains > 0) + { + memmove(h->reserv_buf, s->maindata + pos, remains); + } + h->reserv = remains; +} + +static int L3_restore_reservoir(mp3dec_t *h, bs_t *bs, mp3dec_scratch_t *s, int main_data_begin) +{ + int frame_bytes = (bs->limit - bs->pos)/8; + int bytes_have = MINIMP3_MIN(h->reserv, main_data_begin); + memcpy(s->maindata, h->reserv_buf + MINIMP3_MAX(0, h->reserv - main_data_begin), MINIMP3_MIN(h->reserv, main_data_begin)); + memcpy(s->maindata + bytes_have, bs->buf + bs->pos/8, frame_bytes); + bs_init(&s->bs, s->maindata, bytes_have + frame_bytes); + return h->reserv >= main_data_begin; +} + +static void L3_decode(mp3dec_t *h, mp3dec_scratch_t *s, L3_gr_info_t *gr_info, int nch) +{ + int ch; + + for (ch = 0; ch < nch; ch++) + { + int layer3gr_limit = s->bs.pos + gr_info[ch].part_23_length; + L3_decode_scalefactors(h->header, s->ist_pos[ch], &s->bs, gr_info + ch, s->scf, ch); + L3_huffman(s->grbuf[ch], &s->bs, gr_info + ch, s->scf, layer3gr_limit); + } + + if (HDR_TEST_I_STEREO(h->header)) + { + L3_intensity_stereo(s->grbuf[0], s->ist_pos[1], gr_info, h->header); + } else if (HDR_IS_MS_STEREO(h->header)) + { + L3_midside_stereo(s->grbuf[0], 576); + } + + for (ch = 0; ch < nch; ch++, gr_info++) + { + int aa_bands = 31; + int n_long_bands = (gr_info->mixed_block_flag ? 2 : 0) << (int)(HDR_GET_MY_SAMPLE_RATE(h->header) == 2); + + if (gr_info->n_short_sfb) + { + aa_bands = n_long_bands - 1; + L3_reorder(s->grbuf[ch] + n_long_bands*18, s->syn[0], gr_info->sfbtab + gr_info->n_long_sfb); + } + + L3_antialias(s->grbuf[ch], aa_bands); + L3_imdct_gr(s->grbuf[ch], h->mdct_overlap[ch], gr_info->block_type, n_long_bands); + L3_change_sign(s->grbuf[ch]); + } +} + +static void mp3d_DCT_II(float *grbuf, int n) +{ + static const float g_sec[24] = { + 10.19000816f,0.50060302f,0.50241929f,3.40760851f,0.50547093f,0.52249861f,2.05778098f,0.51544732f,0.56694406f,1.48416460f,0.53104258f,0.64682180f,1.16943991f,0.55310392f,0.78815460f,0.97256821f,0.58293498f,1.06067765f,0.83934963f,0.62250412f,1.72244716f,0.74453628f,0.67480832f,5.10114861f + }; + int i, k = 0; +#if HAVE_SIMD + if (have_simd()) for (; k < n; k += 4) + { + f4 t[4][8], *x; + float *y = grbuf + k; + + for (x = t[0], i = 0; i < 8; i++, x++) + { + f4 x0 = VLD(&y[i*18]); + f4 x1 = VLD(&y[(15 - i)*18]); + f4 x2 = VLD(&y[(16 + i)*18]); + f4 x3 = VLD(&y[(31 - i)*18]); + f4 t0 = VADD(x0, x3); + f4 t1 = VADD(x1, x2); + f4 t2 = VMUL_S(VSUB(x1, x2), g_sec[3*i + 0]); + f4 t3 = VMUL_S(VSUB(x0, x3), g_sec[3*i + 1]); + x[0] = VADD(t0, t1); + x[8] = VMUL_S(VSUB(t0, t1), g_sec[3*i + 2]); + x[16] = VADD(t3, t2); + x[24] = VMUL_S(VSUB(t3, t2), g_sec[3*i + 2]); + } + for (x = t[0], i = 0; i < 4; i++, x += 8) + { + f4 x0 = x[0], x1 = x[1], x2 = x[2], x3 = x[3], x4 = x[4], x5 = x[5], x6 = x[6], x7 = x[7], xt; + xt = VSUB(x0, x7); x0 = VADD(x0, x7); + x7 = VSUB(x1, x6); x1 = VADD(x1, x6); + x6 = VSUB(x2, x5); x2 = VADD(x2, x5); + x5 = VSUB(x3, x4); x3 = VADD(x3, x4); + x4 = VSUB(x0, x3); x0 = VADD(x0, x3); + x3 = VSUB(x1, x2); x1 = VADD(x1, x2); + x[0] = VADD(x0, x1); + x[4] = VMUL_S(VSUB(x0, x1), 0.70710677f); + x5 = VADD(x5, x6); + x6 = VMUL_S(VADD(x6, x7), 0.70710677f); + x7 = VADD(x7, xt); + x3 = VMUL_S(VADD(x3, x4), 0.70710677f); + x5 = VSUB(x5, VMUL_S(x7, 0.198912367f)); /* rotate by PI/8 */ + x7 = VADD(x7, VMUL_S(x5, 0.382683432f)); + x5 = VSUB(x5, VMUL_S(x7, 0.198912367f)); + x0 = VSUB(xt, x6); xt = VADD(xt, x6); + x[1] = VMUL_S(VADD(xt, x7), 0.50979561f); + x[2] = VMUL_S(VADD(x4, x3), 0.54119611f); + x[3] = VMUL_S(VSUB(x0, x5), 0.60134488f); + x[5] = VMUL_S(VADD(x0, x5), 0.89997619f); + x[6] = VMUL_S(VSUB(x4, x3), 1.30656302f); + x[7] = VMUL_S(VSUB(xt, x7), 2.56291556f); + } + + if (k > n - 3) + { +#if HAVE_SSE +#define VSAVE2(i, v) _mm_storel_pi((__m64 *)(void*)&y[i*18], v) +#else /* HAVE_SSE */ +#define VSAVE2(i, v) vst1_f32((float32_t *)&y[i*18], vget_low_f32(v)) +#endif /* HAVE_SSE */ + for (i = 0; i < 7; i++, y += 4*18) + { + f4 s = VADD(t[3][i], t[3][i + 1]); + VSAVE2(0, t[0][i]); + VSAVE2(1, VADD(t[2][i], s)); + VSAVE2(2, VADD(t[1][i], t[1][i + 1])); + VSAVE2(3, VADD(t[2][1 + i], s)); + } + VSAVE2(0, t[0][7]); + VSAVE2(1, VADD(t[2][7], t[3][7])); + VSAVE2(2, t[1][7]); + VSAVE2(3, t[3][7]); + } else + { +#define VSAVE4(i, v) VSTORE(&y[i*18], v) + for (i = 0; i < 7; i++, y += 4*18) + { + f4 s = VADD(t[3][i], t[3][i + 1]); + VSAVE4(0, t[0][i]); + VSAVE4(1, VADD(t[2][i], s)); + VSAVE4(2, VADD(t[1][i], t[1][i + 1])); + VSAVE4(3, VADD(t[2][1 + i], s)); + } + VSAVE4(0, t[0][7]); + VSAVE4(1, VADD(t[2][7], t[3][7])); + VSAVE4(2, t[1][7]); + VSAVE4(3, t[3][7]); + } + } else +#endif /* HAVE_SIMD */ +#ifdef MINIMP3_ONLY_SIMD + {} /* for HAVE_SIMD=1, MINIMP3_ONLY_SIMD=1 case we do not need non-intrinsic "else" branch */ +#else /* MINIMP3_ONLY_SIMD */ + for (; k < n; k++) + { + float t[4][8], *x, *y = grbuf + k; + + for (x = t[0], i = 0; i < 8; i++, x++) + { + float x0 = y[i*18]; + float x1 = y[(15 - i)*18]; + float x2 = y[(16 + i)*18]; + float x3 = y[(31 - i)*18]; + float t0 = x0 + x3; + float t1 = x1 + x2; + float t2 = (x1 - x2)*g_sec[3*i + 0]; + float t3 = (x0 - x3)*g_sec[3*i + 1]; + x[0] = t0 + t1; + x[8] = (t0 - t1)*g_sec[3*i + 2]; + x[16] = t3 + t2; + x[24] = (t3 - t2)*g_sec[3*i + 2]; + } + for (x = t[0], i = 0; i < 4; i++, x += 8) + { + float x0 = x[0], x1 = x[1], x2 = x[2], x3 = x[3], x4 = x[4], x5 = x[5], x6 = x[6], x7 = x[7], xt; + xt = x0 - x7; x0 += x7; + x7 = x1 - x6; x1 += x6; + x6 = x2 - x5; x2 += x5; + x5 = x3 - x4; x3 += x4; + x4 = x0 - x3; x0 += x3; + x3 = x1 - x2; x1 += x2; + x[0] = x0 + x1; + x[4] = (x0 - x1)*0.70710677f; + x5 = x5 + x6; + x6 = (x6 + x7)*0.70710677f; + x7 = x7 + xt; + x3 = (x3 + x4)*0.70710677f; + x5 -= x7*0.198912367f; /* rotate by PI/8 */ + x7 += x5*0.382683432f; + x5 -= x7*0.198912367f; + x0 = xt - x6; xt += x6; + x[1] = (xt + x7)*0.50979561f; + x[2] = (x4 + x3)*0.54119611f; + x[3] = (x0 - x5)*0.60134488f; + x[5] = (x0 + x5)*0.89997619f; + x[6] = (x4 - x3)*1.30656302f; + x[7] = (xt - x7)*2.56291556f; + + } + for (i = 0; i < 7; i++, y += 4*18) + { + y[0*18] = t[0][i]; + y[1*18] = t[2][i] + t[3][i] + t[3][i + 1]; + y[2*18] = t[1][i] + t[1][i + 1]; + y[3*18] = t[2][i + 1] + t[3][i] + t[3][i + 1]; + } + y[0*18] = t[0][7]; + y[1*18] = t[2][7] + t[3][7]; + y[2*18] = t[1][7]; + y[3*18] = t[3][7]; + } +#endif /* MINIMP3_ONLY_SIMD */ +} + +#ifndef MINIMP3_FLOAT_OUTPUT +static int16_t mp3d_scale_pcm(float sample) +{ +#if HAVE_ARMV6 + int32_t s32 = (int32_t)(sample + .5f); + s32 -= (s32 < 0); + int16_t s = (int16_t)minimp3_clip_int16_arm(s32); +#else + if (sample >= 32766.5) return (int16_t) 32767; + if (sample <= -32767.5) return (int16_t)-32768; + int16_t s = (int16_t)(sample + .5f); + s -= (s < 0); /* away from zero, to be compliant */ +#endif + return s; +} +#else /* MINIMP3_FLOAT_OUTPUT */ +static float mp3d_scale_pcm(float sample) +{ + return sample*(1.f/32768.f); +} +#endif /* MINIMP3_FLOAT_OUTPUT */ + +static void mp3d_synth_pair(mp3d_sample_t *pcm, int nch, const float *z) +{ + float a; + a = (z[14*64] - z[ 0]) * 29; + a += (z[ 1*64] + z[13*64]) * 213; + a += (z[12*64] - z[ 2*64]) * 459; + a += (z[ 3*64] + z[11*64]) * 2037; + a += (z[10*64] - z[ 4*64]) * 5153; + a += (z[ 5*64] + z[ 9*64]) * 6574; + a += (z[ 8*64] - z[ 6*64]) * 37489; + a += z[ 7*64] * 75038; + pcm[0] = mp3d_scale_pcm(a); + + z += 2; + a = z[14*64] * 104; + a += z[12*64] * 1567; + a += z[10*64] * 9727; + a += z[ 8*64] * 64019; + a += z[ 6*64] * -9975; + a += z[ 4*64] * -45; + a += z[ 2*64] * 146; + a += z[ 0*64] * -5; + pcm[16*nch] = mp3d_scale_pcm(a); +} + +static void mp3d_synth(float *xl, mp3d_sample_t *dstl, int nch, float *lins) +{ + int i; + float *xr = xl + 576*(nch - 1); + mp3d_sample_t *dstr = dstl + (nch - 1); + + static const float g_win[] = { + -1,26,-31,208,218,401,-519,2063,2000,4788,-5517,7134,5959,35640,-39336,74992, + -1,24,-35,202,222,347,-581,2080,1952,4425,-5879,7640,5288,33791,-41176,74856, + -1,21,-38,196,225,294,-645,2087,1893,4063,-6237,8092,4561,31947,-43006,74630, + -1,19,-41,190,227,244,-711,2085,1822,3705,-6589,8492,3776,30112,-44821,74313, + -1,17,-45,183,228,197,-779,2075,1739,3351,-6935,8840,2935,28289,-46617,73908, + -1,16,-49,176,228,153,-848,2057,1644,3004,-7271,9139,2037,26482,-48390,73415, + -2,14,-53,169,227,111,-919,2032,1535,2663,-7597,9389,1082,24694,-50137,72835, + -2,13,-58,161,224,72,-991,2001,1414,2330,-7910,9592,70,22929,-51853,72169, + -2,11,-63,154,221,36,-1064,1962,1280,2006,-8209,9750,-998,21189,-53534,71420, + -2,10,-68,147,215,2,-1137,1919,1131,1692,-8491,9863,-2122,19478,-55178,70590, + -3,9,-73,139,208,-29,-1210,1870,970,1388,-8755,9935,-3300,17799,-56778,69679, + -3,8,-79,132,200,-57,-1283,1817,794,1095,-8998,9966,-4533,16155,-58333,68692, + -4,7,-85,125,189,-83,-1356,1759,605,814,-9219,9959,-5818,14548,-59838,67629, + -4,7,-91,117,177,-106,-1428,1698,402,545,-9416,9916,-7154,12980,-61289,66494, + -5,6,-97,111,163,-127,-1498,1634,185,288,-9585,9838,-8540,11455,-62684,65290 + }; + float *zlin = lins + 15*64; + const float *w = g_win; + + zlin[4*15] = xl[18*16]; + zlin[4*15 + 1] = xr[18*16]; + zlin[4*15 + 2] = xl[0]; + zlin[4*15 + 3] = xr[0]; + + zlin[4*31] = xl[1 + 18*16]; + zlin[4*31 + 1] = xr[1 + 18*16]; + zlin[4*31 + 2] = xl[1]; + zlin[4*31 + 3] = xr[1]; + + mp3d_synth_pair(dstr, nch, lins + 4*15 + 1); + mp3d_synth_pair(dstr + 32*nch, nch, lins + 4*15 + 64 + 1); + mp3d_synth_pair(dstl, nch, lins + 4*15); + mp3d_synth_pair(dstl + 32*nch, nch, lins + 4*15 + 64); + +#if HAVE_SIMD + if (have_simd()) for (i = 14; i >= 0; i--) + { +#define VLOAD(k) f4 w0 = VSET(*w++); f4 w1 = VSET(*w++); f4 vz = VLD(&zlin[4*i - 64*k]); f4 vy = VLD(&zlin[4*i - 64*(15 - k)]); +#define V0(k) { VLOAD(k) b = VADD(VMUL(vz, w1), VMUL(vy, w0)) ; a = VSUB(VMUL(vz, w0), VMUL(vy, w1)); } +#define V1(k) { VLOAD(k) b = VADD(b, VADD(VMUL(vz, w1), VMUL(vy, w0))); a = VADD(a, VSUB(VMUL(vz, w0), VMUL(vy, w1))); } +#define V2(k) { VLOAD(k) b = VADD(b, VADD(VMUL(vz, w1), VMUL(vy, w0))); a = VADD(a, VSUB(VMUL(vy, w1), VMUL(vz, w0))); } + f4 a, b; + zlin[4*i] = xl[18*(31 - i)]; + zlin[4*i + 1] = xr[18*(31 - i)]; + zlin[4*i + 2] = xl[1 + 18*(31 - i)]; + zlin[4*i + 3] = xr[1 + 18*(31 - i)]; + zlin[4*i + 64] = xl[1 + 18*(1 + i)]; + zlin[4*i + 64 + 1] = xr[1 + 18*(1 + i)]; + zlin[4*i - 64 + 2] = xl[18*(1 + i)]; + zlin[4*i - 64 + 3] = xr[18*(1 + i)]; + + V0(0) V2(1) V1(2) V2(3) V1(4) V2(5) V1(6) V2(7) + + { +#ifndef MINIMP3_FLOAT_OUTPUT +#if HAVE_SSE + static const f4 g_max = { 32767.0f, 32767.0f, 32767.0f, 32767.0f }; + static const f4 g_min = { -32768.0f, -32768.0f, -32768.0f, -32768.0f }; + __m128i pcm8 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(a, g_max), g_min)), + _mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(b, g_max), g_min))); + dstr[(15 - i)*nch] = _mm_extract_epi16(pcm8, 1); + dstr[(17 + i)*nch] = _mm_extract_epi16(pcm8, 5); + dstl[(15 - i)*nch] = _mm_extract_epi16(pcm8, 0); + dstl[(17 + i)*nch] = _mm_extract_epi16(pcm8, 4); + dstr[(47 - i)*nch] = _mm_extract_epi16(pcm8, 3); + dstr[(49 + i)*nch] = _mm_extract_epi16(pcm8, 7); + dstl[(47 - i)*nch] = _mm_extract_epi16(pcm8, 2); + dstl[(49 + i)*nch] = _mm_extract_epi16(pcm8, 6); +#else /* HAVE_SSE */ + int16x4_t pcma, pcmb; + a = VADD(a, VSET(0.5f)); + b = VADD(b, VSET(0.5f)); + pcma = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(a), vreinterpretq_s32_u32(vcltq_f32(a, VSET(0))))); + pcmb = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(b), vreinterpretq_s32_u32(vcltq_f32(b, VSET(0))))); + vst1_lane_s16(dstr + (15 - i)*nch, pcma, 1); + vst1_lane_s16(dstr + (17 + i)*nch, pcmb, 1); + vst1_lane_s16(dstl + (15 - i)*nch, pcma, 0); + vst1_lane_s16(dstl + (17 + i)*nch, pcmb, 0); + vst1_lane_s16(dstr + (47 - i)*nch, pcma, 3); + vst1_lane_s16(dstr + (49 + i)*nch, pcmb, 3); + vst1_lane_s16(dstl + (47 - i)*nch, pcma, 2); + vst1_lane_s16(dstl + (49 + i)*nch, pcmb, 2); +#endif /* HAVE_SSE */ + +#else /* MINIMP3_FLOAT_OUTPUT */ + + static const f4 g_scale = { 1.0f/32768.0f, 1.0f/32768.0f, 1.0f/32768.0f, 1.0f/32768.0f }; + a = VMUL(a, g_scale); + b = VMUL(b, g_scale); +#if HAVE_SSE + _mm_store_ss(dstr + (15 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(1, 1, 1, 1))); + _mm_store_ss(dstr + (17 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(1, 1, 1, 1))); + _mm_store_ss(dstl + (15 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(0, 0, 0, 0))); + _mm_store_ss(dstl + (17 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(0, 0, 0, 0))); + _mm_store_ss(dstr + (47 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(3, 3, 3, 3))); + _mm_store_ss(dstr + (49 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(3, 3, 3, 3))); + _mm_store_ss(dstl + (47 - i)*nch, _mm_shuffle_ps(a, a, _MM_SHUFFLE(2, 2, 2, 2))); + _mm_store_ss(dstl + (49 + i)*nch, _mm_shuffle_ps(b, b, _MM_SHUFFLE(2, 2, 2, 2))); +#else /* HAVE_SSE */ + vst1q_lane_f32(dstr + (15 - i)*nch, a, 1); + vst1q_lane_f32(dstr + (17 + i)*nch, b, 1); + vst1q_lane_f32(dstl + (15 - i)*nch, a, 0); + vst1q_lane_f32(dstl + (17 + i)*nch, b, 0); + vst1q_lane_f32(dstr + (47 - i)*nch, a, 3); + vst1q_lane_f32(dstr + (49 + i)*nch, b, 3); + vst1q_lane_f32(dstl + (47 - i)*nch, a, 2); + vst1q_lane_f32(dstl + (49 + i)*nch, b, 2); +#endif /* HAVE_SSE */ +#endif /* MINIMP3_FLOAT_OUTPUT */ + } + } else +#endif /* HAVE_SIMD */ +#ifdef MINIMP3_ONLY_SIMD + {} /* for HAVE_SIMD=1, MINIMP3_ONLY_SIMD=1 case we do not need non-intrinsic "else" branch */ +#else /* MINIMP3_ONLY_SIMD */ + for (i = 14; i >= 0; i--) + { +#define LOAD(k) float w0 = *w++; float w1 = *w++; float *vz = &zlin[4*i - k*64]; float *vy = &zlin[4*i - (15 - k)*64]; +#define S0(k) { int j; LOAD(k); for (j = 0; j < 4; j++) b[j] = vz[j]*w1 + vy[j]*w0, a[j] = vz[j]*w0 - vy[j]*w1; } +#define S1(k) { int j; LOAD(k); for (j = 0; j < 4; j++) b[j] += vz[j]*w1 + vy[j]*w0, a[j] += vz[j]*w0 - vy[j]*w1; } +#define S2(k) { int j; LOAD(k); for (j = 0; j < 4; j++) b[j] += vz[j]*w1 + vy[j]*w0, a[j] += vy[j]*w1 - vz[j]*w0; } + float a[4], b[4]; + + zlin[4*i] = xl[18*(31 - i)]; + zlin[4*i + 1] = xr[18*(31 - i)]; + zlin[4*i + 2] = xl[1 + 18*(31 - i)]; + zlin[4*i + 3] = xr[1 + 18*(31 - i)]; + zlin[4*(i + 16)] = xl[1 + 18*(1 + i)]; + zlin[4*(i + 16) + 1] = xr[1 + 18*(1 + i)]; + zlin[4*(i - 16) + 2] = xl[18*(1 + i)]; + zlin[4*(i - 16) + 3] = xr[18*(1 + i)]; + + S0(0) S2(1) S1(2) S2(3) S1(4) S2(5) S1(6) S2(7) + + dstr[(15 - i)*nch] = mp3d_scale_pcm(a[1]); + dstr[(17 + i)*nch] = mp3d_scale_pcm(b[1]); + dstl[(15 - i)*nch] = mp3d_scale_pcm(a[0]); + dstl[(17 + i)*nch] = mp3d_scale_pcm(b[0]); + dstr[(47 - i)*nch] = mp3d_scale_pcm(a[3]); + dstr[(49 + i)*nch] = mp3d_scale_pcm(b[3]); + dstl[(47 - i)*nch] = mp3d_scale_pcm(a[2]); + dstl[(49 + i)*nch] = mp3d_scale_pcm(b[2]); + } +#endif /* MINIMP3_ONLY_SIMD */ +} + +static void mp3d_synth_granule(float *qmf_state, float *grbuf, int nbands, int nch, mp3d_sample_t *pcm, float *lins) +{ + int i; + for (i = 0; i < nch; i++) + { + mp3d_DCT_II(grbuf + 576*i, nbands); + } + + memcpy(lins, qmf_state, sizeof(float)*15*64); + + for (i = 0; i < nbands; i += 2) + { + mp3d_synth(grbuf + i, pcm + 32*nch*i, nch, lins + i*64); + } +#ifndef MINIMP3_NONSTANDARD_BUT_LOGICAL + if (nch == 1) + { + for (i = 0; i < 15*64; i += 2) + { + qmf_state[i] = lins[nbands*64 + i]; + } + } else +#endif /* MINIMP3_NONSTANDARD_BUT_LOGICAL */ + { + memcpy(qmf_state, lins + nbands*64, sizeof(float)*15*64); + } +} + +static int mp3d_match_frame(const uint8_t *hdr, int mp3_bytes, int frame_bytes) +{ + int i, nmatch; + for (i = 0, nmatch = 0; nmatch < MAX_FRAME_SYNC_MATCHES; nmatch++) + { + i += hdr_frame_bytes(hdr + i, frame_bytes) + hdr_padding(hdr + i); + if (i + HDR_SIZE > mp3_bytes) + return nmatch > 0; + if (!hdr_compare(hdr, hdr + i)) + return 0; + } + return 1; +} + +static int mp3d_find_frame(const uint8_t *mp3, int mp3_bytes, int *free_format_bytes, int *ptr_frame_bytes) +{ + int i, k; + for (i = 0; i < mp3_bytes - HDR_SIZE; i++, mp3++) + { + if (hdr_valid(mp3)) + { + int frame_bytes = hdr_frame_bytes(mp3, *free_format_bytes); + int frame_and_padding = frame_bytes + hdr_padding(mp3); + + for (k = HDR_SIZE; !frame_bytes && k < MAX_FREE_FORMAT_FRAME_SIZE && i + 2*k < mp3_bytes - HDR_SIZE; k++) + { + if (hdr_compare(mp3, mp3 + k)) + { + int fb = k - hdr_padding(mp3); + int nextfb = fb + hdr_padding(mp3 + k); + if (i + k + nextfb + HDR_SIZE > mp3_bytes || !hdr_compare(mp3, mp3 + k + nextfb)) + continue; + frame_and_padding = k; + frame_bytes = fb; + *free_format_bytes = fb; + } + } + if ((frame_bytes && i + frame_and_padding <= mp3_bytes && + mp3d_match_frame(mp3, mp3_bytes - i, frame_bytes)) || + (!i && frame_and_padding == mp3_bytes)) + { + *ptr_frame_bytes = frame_and_padding; + return i; + } + *free_format_bytes = 0; + } + } + *ptr_frame_bytes = 0; + return mp3_bytes; +} + +void mp3dec_init(mp3dec_t *dec) +{ + dec->header[0] = 0; +} + +int mp3dec_decode_frame(mp3dec_t *dec, const uint8_t *mp3, int mp3_bytes, mp3d_sample_t *pcm, mp3dec_frame_info_t *info) +{ + int i = 0, igr, frame_size = 0, success = 1; + const uint8_t *hdr; + bs_t bs_frame[1]; + mp3dec_scratch_t scratch; + + if (mp3_bytes > 4 && dec->header[0] == 0xff && hdr_compare(dec->header, mp3)) + { + frame_size = hdr_frame_bytes(mp3, dec->free_format_bytes) + hdr_padding(mp3); + if (frame_size != mp3_bytes && (frame_size + HDR_SIZE > mp3_bytes || !hdr_compare(mp3, mp3 + frame_size))) + { + frame_size = 0; + } + } + if (!frame_size) + { + memset(dec, 0, sizeof(mp3dec_t)); + i = mp3d_find_frame(mp3, mp3_bytes, &dec->free_format_bytes, &frame_size); + if (!frame_size || i + frame_size > mp3_bytes) + { + info->frame_bytes = i; + return 0; + } + } + + hdr = mp3 + i; + memcpy(dec->header, hdr, HDR_SIZE); + info->frame_bytes = i + frame_size; + info->frame_offset = i; + info->channels = HDR_IS_MONO(hdr) ? 1 : 2; + info->hz = hdr_sample_rate_hz(hdr); + info->layer = 4 - HDR_GET_LAYER(hdr); + info->bitrate_kbps = hdr_bitrate_kbps(hdr); + + if (!pcm) + { + return hdr_frame_samples(hdr); + } + + bs_init(bs_frame, hdr + HDR_SIZE, frame_size - HDR_SIZE); + if (HDR_IS_CRC(hdr)) + { + get_bits(bs_frame, 16); + } + + if (info->layer == 3) + { + int main_data_begin = L3_read_side_info(bs_frame, scratch.gr_info, hdr); + if (main_data_begin < 0 || bs_frame->pos > bs_frame->limit) + { + mp3dec_init(dec); + return 0; + } + success = L3_restore_reservoir(dec, bs_frame, &scratch, main_data_begin); + if (success) + { + for (igr = 0; igr < (HDR_TEST_MPEG1(hdr) ? 2 : 1); igr++, pcm += 576*info->channels) + { + memset(scratch.grbuf[0], 0, 576*2*sizeof(float)); + L3_decode(dec, &scratch, scratch.gr_info + igr*info->channels, info->channels); + mp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 18, info->channels, pcm, scratch.syn[0]); + } + } + L3_save_reservoir(dec, &scratch); + } else + { +#ifdef MINIMP3_ONLY_MP3 + return 0; +#else /* MINIMP3_ONLY_MP3 */ + L12_scale_info sci[1]; + L12_read_scale_info(hdr, bs_frame, sci); + + memset(scratch.grbuf[0], 0, 576*2*sizeof(float)); + for (i = 0, igr = 0; igr < 3; igr++) + { + if (12 == (i += L12_dequantize_granule(scratch.grbuf[0] + i, bs_frame, sci, info->layer | 1))) + { + i = 0; + L12_apply_scf_384(sci, sci->scf + igr, scratch.grbuf[0]); + mp3d_synth_granule(dec->qmf_state, scratch.grbuf[0], 12, info->channels, pcm, scratch.syn[0]); + memset(scratch.grbuf[0], 0, 576*2*sizeof(float)); + pcm += 384*info->channels; + } + if (bs_frame->pos > bs_frame->limit) + { + mp3dec_init(dec); + return 0; + } + } +#endif /* MINIMP3_ONLY_MP3 */ + } + return success*hdr_frame_samples(dec->header); +} + +#ifdef MINIMP3_FLOAT_OUTPUT +void mp3dec_f32_to_s16(const float *in, int16_t *out, int num_samples) +{ + int i = 0; +#if HAVE_SIMD + int aligned_count = num_samples & ~7; + for(; i < aligned_count; i += 8) + { + static const f4 g_scale = { 32768.0f, 32768.0f, 32768.0f, 32768.0f }; + f4 a = VMUL(VLD(&in[i ]), g_scale); + f4 b = VMUL(VLD(&in[i+4]), g_scale); +#if HAVE_SSE + static const f4 g_max = { 32767.0f, 32767.0f, 32767.0f, 32767.0f }; + static const f4 g_min = { -32768.0f, -32768.0f, -32768.0f, -32768.0f }; + __m128i pcm8 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(a, g_max), g_min)), + _mm_cvtps_epi32(_mm_max_ps(_mm_min_ps(b, g_max), g_min))); + out[i ] = _mm_extract_epi16(pcm8, 0); + out[i+1] = _mm_extract_epi16(pcm8, 1); + out[i+2] = _mm_extract_epi16(pcm8, 2); + out[i+3] = _mm_extract_epi16(pcm8, 3); + out[i+4] = _mm_extract_epi16(pcm8, 4); + out[i+5] = _mm_extract_epi16(pcm8, 5); + out[i+6] = _mm_extract_epi16(pcm8, 6); + out[i+7] = _mm_extract_epi16(pcm8, 7); +#else /* HAVE_SSE */ + int16x4_t pcma, pcmb; + a = VADD(a, VSET(0.5f)); + b = VADD(b, VSET(0.5f)); + pcma = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(a), vreinterpretq_s32_u32(vcltq_f32(a, VSET(0))))); + pcmb = vqmovn_s32(vqaddq_s32(vcvtq_s32_f32(b), vreinterpretq_s32_u32(vcltq_f32(b, VSET(0))))); + vst1_lane_s16(out+i , pcma, 0); + vst1_lane_s16(out+i+1, pcma, 1); + vst1_lane_s16(out+i+2, pcma, 2); + vst1_lane_s16(out+i+3, pcma, 3); + vst1_lane_s16(out+i+4, pcmb, 0); + vst1_lane_s16(out+i+5, pcmb, 1); + vst1_lane_s16(out+i+6, pcmb, 2); + vst1_lane_s16(out+i+7, pcmb, 3); +#endif /* HAVE_SSE */ + } +#endif /* HAVE_SIMD */ + for(; i < num_samples; i++) + { + float sample = in[i] * 32768.0f; + if (sample >= 32766.5) + out[i] = (int16_t) 32767; + else if (sample <= -32767.5) + out[i] = (int16_t)-32768; + else + { + int16_t s = (int16_t)(sample + .5f); + s -= (s < 0); /* away from zero, to be compliant */ + out[i] = s; + } + } +} +#endif /* MINIMP3_FLOAT_OUTPUT */ +#endif /* MINIMP3_IMPLEMENTATION && !_MINIMP3_IMPLEMENTATION_GUARD */ diff --git a/src/codecs/minimp3/minimp3_ex.h b/src/codecs/minimp3/minimp3_ex.h new file mode 100644 index 000000000..2871705df --- /dev/null +++ b/src/codecs/minimp3/minimp3_ex.h @@ -0,0 +1,1397 @@ +#ifndef MINIMP3_EXT_H +#define MINIMP3_EXT_H +/* + https://github.com/lieff/minimp3 + To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. + This software is distributed without any warranty. + See . +*/ +#include +#include "minimp3.h" + +/* flags for mp3dec_ex_open_* functions */ +#define MP3D_SEEK_TO_BYTE 0 /* mp3dec_ex_seek seeks to byte in stream */ +#define MP3D_SEEK_TO_SAMPLE 1 /* mp3dec_ex_seek precisely seeks to sample using index (created during duration calculation scan or when mp3dec_ex_seek called) */ +#define MP3D_DO_NOT_SCAN 2 /* do not scan whole stream for duration if vbrtag not found, mp3dec_ex_t::samples will be filled only if mp3dec_ex_t::vbr_tag_found == 1 */ +#ifdef MINIMP3_ALLOW_MONO_STEREO_TRANSITION +#define MP3D_ALLOW_MONO_STEREO_TRANSITION 4 +#define MP3D_FLAGS_MASK 7 +#else +#define MP3D_FLAGS_MASK 3 +#endif + +/* compile-time config */ +#define MINIMP3_PREDECODE_FRAMES 2 /* frames to pre-decode and skip after seek (to fill internal structures) */ +/*#define MINIMP3_SEEK_IDX_LINEAR_SEARCH*/ /* define to use linear index search instead of binary search on seek */ +#define MINIMP3_IO_SIZE (128*1024) /* io buffer size for streaming functions, must be greater than MINIMP3_BUF_SIZE */ +#define MINIMP3_BUF_SIZE (16*1024) /* buffer which can hold minimum 10 consecutive mp3 frames (~16KB) worst case */ +/*#define MINIMP3_SCAN_LIMIT (256*1024)*/ /* how many bytes will be scanned to search first valid mp3 frame, to prevent stall on large non-mp3 files */ +#define MINIMP3_ENABLE_RING 0 /* WIP enable hardware magic ring buffer if available, to make less input buffer memmove(s) in callback IO mode */ + +/* return error codes */ +#define MP3D_E_PARAM -1 +#define MP3D_E_MEMORY -2 +#define MP3D_E_IOERROR -3 +#define MP3D_E_USER -4 /* can be used to stop processing from callbacks without indicating specific error */ +#define MP3D_E_DECODE -5 /* decode error which can't be safely skipped, such as sample rate, layer and channels change */ + +typedef struct +{ + mp3d_sample_t *buffer; + size_t samples; /* channels included, byte size = samples*sizeof(mp3d_sample_t) */ + int channels, hz, layer, avg_bitrate_kbps; +} mp3dec_file_info_t; + +typedef struct +{ + const uint8_t *buffer; + size_t size; +} mp3dec_map_info_t; + +typedef struct +{ + uint64_t sample; + uint64_t offset; +} mp3dec_frame_t; + +typedef struct +{ + mp3dec_frame_t *frames; + size_t num_frames, capacity; +} mp3dec_index_t; + +typedef size_t (*MP3D_READ_CB)(void *buf, size_t size, void *user_data); +typedef int (*MP3D_SEEK_CB)(uint64_t position, void *user_data); + +typedef struct +{ + MP3D_READ_CB read; + void *read_data; + MP3D_SEEK_CB seek; + void *seek_data; +} mp3dec_io_t; + +typedef struct +{ + mp3dec_t mp3d; + mp3dec_map_info_t file; + mp3dec_io_t *io; + mp3dec_index_t index; + uint64_t offset, samples, detected_samples, cur_sample, start_offset, end_offset; + mp3dec_frame_info_t info; + mp3d_sample_t buffer[MINIMP3_MAX_SAMPLES_PER_FRAME]; + size_t input_consumed, input_filled; + int is_file, flags, vbr_tag_found, indexes_built; + int free_format_bytes; + int buffer_samples, buffer_consumed, to_skip, start_delay; + int last_error; +} mp3dec_ex_t; + +typedef int (*MP3D_ITERATE_CB)(void *user_data, const uint8_t *frame, int frame_size, int free_format_bytes, size_t buf_size, uint64_t offset, mp3dec_frame_info_t *info); +typedef int (*MP3D_PROGRESS_CB)(void *user_data, size_t file_size, uint64_t offset, mp3dec_frame_info_t *info); + +#ifdef __cplusplus +extern "C" { +#endif + +/* detect mp3/mpa format */ +int mp3dec_detect_buf(const uint8_t *buf, size_t buf_size); +int mp3dec_detect_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size); +/* decode whole buffer block */ +int mp3dec_load_buf(mp3dec_t *dec, const uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_load_cb(mp3dec_t *dec, mp3dec_io_t *io, uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +/* iterate through frames */ +int mp3dec_iterate_buf(const uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_iterate_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data); +/* streaming decoder with seeking capability */ +int mp3dec_ex_open_buf(mp3dec_ex_t *dec, const uint8_t *buf, size_t buf_size, int flags); +int mp3dec_ex_open_cb(mp3dec_ex_t *dec, mp3dec_io_t *io, int flags); +void mp3dec_ex_close(mp3dec_ex_t *dec); +int mp3dec_ex_seek(mp3dec_ex_t *dec, uint64_t position); +size_t mp3dec_ex_read_frame(mp3dec_ex_t *dec, mp3d_sample_t **buf, mp3dec_frame_info_t *frame_info, size_t max_samples); +size_t mp3dec_ex_read(mp3dec_ex_t *dec, mp3d_sample_t *buf, size_t samples); +#ifndef MINIMP3_NO_STDIO +/* stdio versions of file detect, load, iterate and stream */ +int mp3dec_detect(const char *file_name); +int mp3dec_load(mp3dec_t *dec, const char *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_iterate(const char *file_name, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_ex_open(mp3dec_ex_t *dec, const char *file_name, int flags); +#ifdef _WIN32 +int mp3dec_detect_w(const wchar_t *file_name); +int mp3dec_load_w(mp3dec_t *dec, const wchar_t *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data); +int mp3dec_iterate_w(const wchar_t *file_name, MP3D_ITERATE_CB callback, void *user_data); +int mp3dec_ex_open_w(mp3dec_ex_t *dec, const wchar_t *file_name, int flags); +#endif +#endif + +#ifdef __cplusplus +} +#endif +#endif /*MINIMP3_EXT_H*/ + +#if defined(MINIMP3_IMPLEMENTATION) && !defined(_MINIMP3_EX_IMPLEMENTATION_GUARD) +#define _MINIMP3_EX_IMPLEMENTATION_GUARD +#include +#include "minimp3.h" + +static void mp3dec_skip_id3v1(const uint8_t *buf, size_t *pbuf_size) +{ + size_t buf_size = *pbuf_size; +#ifndef MINIMP3_NOSKIP_ID3V1 + if (buf_size >= 128 && !memcmp(buf + buf_size - 128, "TAG", 3)) + { + buf_size -= 128; + if (buf_size >= 227 && !memcmp(buf + buf_size - 227, "TAG+", 4)) + buf_size -= 227; + } +#endif +#ifndef MINIMP3_NOSKIP_APEV2 + if (buf_size > 32 && !memcmp(buf + buf_size - 32, "APETAGEX", 8)) + { + buf_size -= 32; + const uint8_t *tag = buf + buf_size + 8 + 4; + uint32_t tag_size = (uint32_t)(tag[3] << 24) | (tag[2] << 16) | (tag[1] << 8) | tag[0]; + if (buf_size >= tag_size) + buf_size -= tag_size; + } +#endif + *pbuf_size = buf_size; +} + +static size_t mp3dec_skip_id3v2(const uint8_t *buf, size_t buf_size) +{ +#define MINIMP3_ID3_DETECT_SIZE 10 +#ifndef MINIMP3_NOSKIP_ID3V2 + if (buf_size >= MINIMP3_ID3_DETECT_SIZE && !memcmp(buf, "ID3", 3) && !((buf[5] & 15) || (buf[6] & 0x80) || (buf[7] & 0x80) || (buf[8] & 0x80) || (buf[9] & 0x80))) + { + size_t id3v2size = (((buf[6] & 0x7f) << 21) | ((buf[7] & 0x7f) << 14) | ((buf[8] & 0x7f) << 7) | (buf[9] & 0x7f)) + 10; + if ((buf[5] & 16)) + id3v2size += 10; /* footer */ + return id3v2size; + } +#endif + return 0; +} + +static void mp3dec_skip_id3(const uint8_t **pbuf, size_t *pbuf_size) +{ + uint8_t *buf = (uint8_t *)(*pbuf); + size_t buf_size = *pbuf_size; + size_t id3v2size = mp3dec_skip_id3v2(buf, buf_size); + if (id3v2size) + { + if (id3v2size >= buf_size) + id3v2size = buf_size; + buf += id3v2size; + buf_size -= id3v2size; + } + mp3dec_skip_id3v1(buf, &buf_size); + *pbuf = (const uint8_t *)buf; + *pbuf_size = buf_size; +} + +static int mp3dec_check_vbrtag(const uint8_t *frame, int frame_size, uint32_t *frames, int *delay, int *padding) +{ + static const char g_xing_tag[4] = { 'X', 'i', 'n', 'g' }; + static const char g_info_tag[4] = { 'I', 'n', 'f', 'o' }; +#define FRAMES_FLAG 1 +#define BYTES_FLAG 2 +#define TOC_FLAG 4 +#define VBR_SCALE_FLAG 8 + /* Side info offsets after header: + / Mono Stereo + / MPEG1 17 32 + / MPEG2 & 2.5 9 17*/ + bs_t bs[1]; + L3_gr_info_t gr_info[4]; + bs_init(bs, frame + HDR_SIZE, frame_size - HDR_SIZE); + if (HDR_IS_CRC(frame)) + get_bits(bs, 16); + if (L3_read_side_info(bs, gr_info, frame) < 0) + return 0; /* side info corrupted */ + + const uint8_t *tag = frame + HDR_SIZE + bs->pos/8; + if (memcmp(g_xing_tag, tag, 4) && memcmp(g_info_tag, tag, 4)) + return 0; + int flags = tag[7]; + if (!((flags & FRAMES_FLAG))) + return -1; + tag += 8; + *frames = (uint32_t)(tag[0] << 24) | (tag[1] << 16) | (tag[2] << 8) | tag[3]; + tag += 4; + if (flags & BYTES_FLAG) + tag += 4; + if (flags & TOC_FLAG) + tag += 100; + if (flags & VBR_SCALE_FLAG) + tag += 4; + *delay = *padding = 0; + if (*tag) + { /* extension, LAME, Lavc, etc. Should be the same structure. */ + tag += 21; + if (tag - frame + 14 >= frame_size) + return 0; + *delay = ((tag[0] << 4) | (tag[1] >> 4)) + (528 + 1); + *padding = (((tag[1] & 0xF) << 8) | tag[2]) - (528 + 1); + } + return 1; +} + +int mp3dec_detect_buf(const uint8_t *buf, size_t buf_size) +{ + return mp3dec_detect_cb(0, (uint8_t *)buf, buf_size); +} + +int mp3dec_detect_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size) +{ + if (!buf || (size_t)-1 == buf_size || (io && buf_size < MINIMP3_BUF_SIZE)) + return MP3D_E_PARAM; + size_t filled = buf_size; + if (io) + { + if (io->seek(0, io->seek_data)) + return MP3D_E_IOERROR; + filled = io->read(buf, MINIMP3_ID3_DETECT_SIZE, io->read_data); + if (filled > MINIMP3_ID3_DETECT_SIZE) + return MP3D_E_IOERROR; + } + if (filled < MINIMP3_ID3_DETECT_SIZE) + return MP3D_E_USER; /* too small, can't be mp3/mpa */ + if (mp3dec_skip_id3v2(buf, filled)) + return 0; /* id3v2 tag is enough evidence */ + if (io) + { + size_t readed = io->read(buf + MINIMP3_ID3_DETECT_SIZE, buf_size - MINIMP3_ID3_DETECT_SIZE, io->read_data); + if (readed > (buf_size - MINIMP3_ID3_DETECT_SIZE)) + return MP3D_E_IOERROR; + filled += readed; + if (filled < MINIMP3_BUF_SIZE) + mp3dec_skip_id3v1(buf, &filled); + } else + { + mp3dec_skip_id3v1(buf, &filled); + if (filled > MINIMP3_BUF_SIZE) + filled = MINIMP3_BUF_SIZE; + } + int free_format_bytes, frame_size; + mp3d_find_frame(buf, filled, &free_format_bytes, &frame_size); + if (frame_size) + return 0; /* MAX_FRAME_SYNC_MATCHES consecutive frames found */ + return MP3D_E_USER; +} + +int mp3dec_load_buf(mp3dec_t *dec, const uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data) +{ + return mp3dec_load_cb(dec, 0, (uint8_t *)buf, buf_size, info, progress_cb, user_data); +} + +int mp3dec_load_cb(mp3dec_t *dec, mp3dec_io_t *io, uint8_t *buf, size_t buf_size, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data) +{ + if (!dec || !buf || !info || (size_t)-1 == buf_size || (io && buf_size < MINIMP3_BUF_SIZE)) + return MP3D_E_PARAM; + uint64_t detected_samples = 0; + size_t orig_buf_size = buf_size; + int to_skip = 0; + mp3dec_frame_info_t frame_info; + memset(info, 0, sizeof(*info)); + memset(&frame_info, 0, sizeof(frame_info)); + + /* skip id3 */ + size_t filled = 0, consumed = 0; + int eof = 0, ret = 0; + if (io) + { + if (io->seek(0, io->seek_data)) + return MP3D_E_IOERROR; + filled = io->read(buf, MINIMP3_ID3_DETECT_SIZE, io->read_data); + if (filled > MINIMP3_ID3_DETECT_SIZE) + return MP3D_E_IOERROR; + if (MINIMP3_ID3_DETECT_SIZE != filled) + return 0; + size_t id3v2size = mp3dec_skip_id3v2(buf, filled); + if (id3v2size) + { + if (io->seek(id3v2size, io->seek_data)) + return MP3D_E_IOERROR; + filled = io->read(buf, buf_size, io->read_data); + if (filled > buf_size) + return MP3D_E_IOERROR; + } else + { + size_t readed = io->read(buf + MINIMP3_ID3_DETECT_SIZE, buf_size - MINIMP3_ID3_DETECT_SIZE, io->read_data); + if (readed > (buf_size - MINIMP3_ID3_DETECT_SIZE)) + return MP3D_E_IOERROR; + filled += readed; + } + if (filled < MINIMP3_BUF_SIZE) + mp3dec_skip_id3v1(buf, &filled); + } else + { + mp3dec_skip_id3((const uint8_t **)&buf, &buf_size); + if (!buf_size) + return 0; + } + /* try to make allocation size assumption by first frame or vbr tag */ + mp3dec_init(dec); + int samples; + do + { + uint32_t frames; + int i, delay, padding, free_format_bytes = 0, frame_size = 0; + const uint8_t *hdr; + if (io) + { + if (!eof && filled - consumed < MINIMP3_BUF_SIZE) + { /* keep minimum 10 consecutive mp3 frames (~16KB) worst case */ + memmove(buf, buf + consumed, filled - consumed); + filled -= consumed; + consumed = 0; + size_t readed = io->read(buf + filled, buf_size - filled, io->read_data); + if (readed > (buf_size - filled)) + return MP3D_E_IOERROR; + if (readed != (buf_size - filled)) + eof = 1; + filled += readed; + if (eof) + mp3dec_skip_id3v1(buf, &filled); + } + i = mp3d_find_frame(buf + consumed, filled - consumed, &free_format_bytes, &frame_size); + consumed += i; + hdr = buf + consumed; + } else + { + i = mp3d_find_frame(buf, buf_size, &free_format_bytes, &frame_size); + buf += i; + buf_size -= i; + hdr = buf; + } + if (i && !frame_size) + continue; + if (!frame_size) + return 0; + frame_info.channels = HDR_IS_MONO(hdr) ? 1 : 2; + frame_info.hz = hdr_sample_rate_hz(hdr); + frame_info.layer = 4 - HDR_GET_LAYER(hdr); + frame_info.bitrate_kbps = hdr_bitrate_kbps(hdr); + frame_info.frame_bytes = frame_size; + samples = hdr_frame_samples(hdr)*frame_info.channels; + if (3 != frame_info.layer) + break; + int ret = mp3dec_check_vbrtag(hdr, frame_size, &frames, &delay, &padding); + if (ret > 0) + { + padding *= frame_info.channels; + to_skip = delay*frame_info.channels; + detected_samples = samples*(uint64_t)frames; + if (detected_samples >= (uint64_t)to_skip) + detected_samples -= to_skip; + if (padding > 0 && detected_samples >= (uint64_t)padding) + detected_samples -= padding; + if (!detected_samples) + return 0; + } + if (ret) + { + if (io) + { + consumed += frame_size; + } else + { + buf += frame_size; + buf_size -= frame_size; + } + } + break; + } while(1); + size_t allocated = MINIMP3_MAX_SAMPLES_PER_FRAME*sizeof(mp3d_sample_t); + if (detected_samples) + allocated += detected_samples*sizeof(mp3d_sample_t); + else + allocated += (buf_size/frame_info.frame_bytes)*samples*sizeof(mp3d_sample_t); + info->buffer = (mp3d_sample_t*)malloc(allocated); + if (!info->buffer) + return MP3D_E_MEMORY; + /* save info */ + info->channels = frame_info.channels; + info->hz = frame_info.hz; + info->layer = frame_info.layer; + /* decode all frames */ + size_t avg_bitrate_kbps = 0, frames = 0; + do + { + if ((allocated - info->samples*sizeof(mp3d_sample_t)) < MINIMP3_MAX_SAMPLES_PER_FRAME*sizeof(mp3d_sample_t)) + { + allocated *= 2; + mp3d_sample_t *alloc_buf = (mp3d_sample_t*)realloc(info->buffer, allocated); + if (!alloc_buf) + return MP3D_E_MEMORY; + info->buffer = alloc_buf; + } + if (io) + { + if (!eof && filled - consumed < MINIMP3_BUF_SIZE) + { /* keep minimum 10 consecutive mp3 frames (~16KB) worst case */ + memmove(buf, buf + consumed, filled - consumed); + filled -= consumed; + consumed = 0; + size_t readed = io->read(buf + filled, buf_size - filled, io->read_data); + if (readed != (buf_size - filled)) + eof = 1; + filled += readed; + if (eof) + mp3dec_skip_id3v1(buf, &filled); + } + samples = mp3dec_decode_frame(dec, buf + consumed, filled - consumed, info->buffer + info->samples, &frame_info); + consumed += frame_info.frame_bytes; + } else + { + samples = mp3dec_decode_frame(dec, buf, MINIMP3_MIN(buf_size, (size_t)INT_MAX), info->buffer + info->samples, &frame_info); + buf += frame_info.frame_bytes; + buf_size -= frame_info.frame_bytes; + } + if (samples) + { + if (info->hz != frame_info.hz || info->layer != frame_info.layer) + { + ret = MP3D_E_DECODE; + break; + } + if (info->channels && info->channels != frame_info.channels) + { +#ifdef MINIMP3_ALLOW_MONO_STEREO_TRANSITION + info->channels = 0; /* mark file with mono-stereo transition */ +#else + ret = MP3D_E_DECODE; + break; +#endif + } + samples *= frame_info.channels; + if (to_skip) + { + size_t skip = MINIMP3_MIN(samples, to_skip); + to_skip -= skip; + samples -= skip; + memmove(info->buffer, info->buffer + skip, samples*sizeof(mp3d_sample_t)); + } + info->samples += samples; + avg_bitrate_kbps += frame_info.bitrate_kbps; + frames++; + if (progress_cb) + { + ret = progress_cb(user_data, orig_buf_size, orig_buf_size - buf_size, &frame_info); + if (ret) + break; + } + } + } while (frame_info.frame_bytes); + if (detected_samples && info->samples > detected_samples) + info->samples = detected_samples; /* cut padding */ + /* reallocate to normal buffer size */ + if (allocated != info->samples*sizeof(mp3d_sample_t)) + { + mp3d_sample_t *alloc_buf = (mp3d_sample_t*)realloc(info->buffer, info->samples*sizeof(mp3d_sample_t)); + if (!alloc_buf && info->samples) + return MP3D_E_MEMORY; + info->buffer = alloc_buf; + } + if (frames) + info->avg_bitrate_kbps = avg_bitrate_kbps/frames; + return ret; +} + +int mp3dec_iterate_buf(const uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data) +{ + const uint8_t *orig_buf = buf; + if (!buf || (size_t)-1 == buf_size || !callback) + return MP3D_E_PARAM; + /* skip id3 */ + mp3dec_skip_id3(&buf, &buf_size); + if (!buf_size) + return 0; + mp3dec_frame_info_t frame_info; + memset(&frame_info, 0, sizeof(frame_info)); + do + { + int free_format_bytes = 0, frame_size = 0, ret; + int i = mp3d_find_frame(buf, buf_size, &free_format_bytes, &frame_size); + buf += i; + buf_size -= i; + if (i && !frame_size) + continue; + if (!frame_size) + break; + const uint8_t *hdr = buf; + frame_info.channels = HDR_IS_MONO(hdr) ? 1 : 2; + frame_info.hz = hdr_sample_rate_hz(hdr); + frame_info.layer = 4 - HDR_GET_LAYER(hdr); + frame_info.bitrate_kbps = hdr_bitrate_kbps(hdr); + frame_info.frame_bytes = frame_size; + + if (callback) + { + if ((ret = callback(user_data, hdr, frame_size, free_format_bytes, buf_size, hdr - orig_buf, &frame_info))) + return ret; + } + buf += frame_size; + buf_size -= frame_size; + } while (1); + return 0; +} + +int mp3dec_iterate_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size, MP3D_ITERATE_CB callback, void *user_data) +{ + if (!io || !buf || (size_t)-1 == buf_size || buf_size < MINIMP3_BUF_SIZE || !callback) + return MP3D_E_PARAM; + size_t filled = io->read(buf, MINIMP3_ID3_DETECT_SIZE, io->read_data), consumed = 0; + uint64_t readed = 0; + mp3dec_frame_info_t frame_info; + int eof = 0; + memset(&frame_info, 0, sizeof(frame_info)); + if (filled > MINIMP3_ID3_DETECT_SIZE) + return MP3D_E_IOERROR; + if (MINIMP3_ID3_DETECT_SIZE != filled) + return 0; + size_t id3v2size = mp3dec_skip_id3v2(buf, filled); + if (id3v2size) + { + if (io->seek(id3v2size, io->seek_data)) + return MP3D_E_IOERROR; + filled = io->read(buf, buf_size, io->read_data); + if (filled > buf_size) + return MP3D_E_IOERROR; + readed += id3v2size; + } else + { + size_t readed = io->read(buf + MINIMP3_ID3_DETECT_SIZE, buf_size - MINIMP3_ID3_DETECT_SIZE, io->read_data); + if (readed > (buf_size - MINIMP3_ID3_DETECT_SIZE)) + return MP3D_E_IOERROR; + filled += readed; + } + if (filled < MINIMP3_BUF_SIZE) + mp3dec_skip_id3v1(buf, &filled); + do + { + int free_format_bytes = 0, frame_size = 0, ret; + int i = mp3d_find_frame(buf + consumed, filled - consumed, &free_format_bytes, &frame_size); + if (i && !frame_size) + { + consumed += i; + continue; + } + if (!frame_size) + break; + const uint8_t *hdr = buf + consumed + i; + frame_info.channels = HDR_IS_MONO(hdr) ? 1 : 2; + frame_info.hz = hdr_sample_rate_hz(hdr); + frame_info.layer = 4 - HDR_GET_LAYER(hdr); + frame_info.bitrate_kbps = hdr_bitrate_kbps(hdr); + frame_info.frame_bytes = frame_size; + + readed += i; + if (callback) + { + if ((ret = callback(user_data, hdr, frame_size, free_format_bytes, filled - consumed, readed, &frame_info))) + return ret; + } + readed += frame_size; + consumed += i + frame_size; + if (!eof && filled - consumed < MINIMP3_BUF_SIZE) + { /* keep minimum 10 consecutive mp3 frames (~16KB) worst case */ + memmove(buf, buf + consumed, filled - consumed); + filled -= consumed; + consumed = 0; + size_t readed = io->read(buf + filled, buf_size - filled, io->read_data); + if (readed > (buf_size - filled)) + return MP3D_E_IOERROR; + if (readed != (buf_size - filled)) + eof = 1; + filled += readed; + if (eof) + mp3dec_skip_id3v1(buf, &filled); + } + } while (1); + return 0; +} + +static int mp3dec_load_index(void *user_data, const uint8_t *frame, int frame_size, int free_format_bytes, size_t buf_size, uint64_t offset, mp3dec_frame_info_t *info) +{ + mp3dec_frame_t *idx_frame; + mp3dec_ex_t *dec = (mp3dec_ex_t *)user_data; + if (!dec->index.frames && !dec->start_offset) + { /* detect VBR tag and try to avoid full scan */ + uint32_t frames; + int delay, padding; + dec->info = *info; + dec->start_offset = dec->offset = offset; + dec->end_offset = offset + buf_size; + dec->free_format_bytes = free_format_bytes; /* should not change */ + if (3 == dec->info.layer) + { + int ret = mp3dec_check_vbrtag(frame, frame_size, &frames, &delay, &padding); + if (ret) + dec->start_offset = dec->offset = offset + frame_size; + if (ret > 0) + { + padding *= info->channels; + dec->start_delay = dec->to_skip = delay*info->channels; + dec->samples = hdr_frame_samples(frame)*info->channels*(uint64_t)frames; + if (dec->samples >= (uint64_t)dec->start_delay) + dec->samples -= dec->start_delay; + if (padding > 0 && dec->samples >= (uint64_t)padding) + dec->samples -= padding; + dec->detected_samples = dec->samples; + dec->vbr_tag_found = 1; + return MP3D_E_USER; + } else if (ret < 0) + return 0; + } + } + if (dec->flags & MP3D_DO_NOT_SCAN) + return MP3D_E_USER; + if (dec->index.num_frames + 1 > dec->index.capacity) + { + if (!dec->index.capacity) + dec->index.capacity = 4096; + else + dec->index.capacity *= 2; + mp3dec_frame_t *alloc_buf = (mp3dec_frame_t *)realloc((void*)dec->index.frames, sizeof(mp3dec_frame_t)*dec->index.capacity); + if (!alloc_buf) + return MP3D_E_MEMORY; + dec->index.frames = alloc_buf; + } + idx_frame = &dec->index.frames[dec->index.num_frames++]; + idx_frame->offset = offset; + idx_frame->sample = dec->samples; + if (!dec->buffer_samples && dec->index.num_frames < 256) + { /* for some cutted mp3 frames, bit-reservoir not filled and decoding can't be started from first frames */ + /* try to decode up to 255 first frames till samples starts to decode */ + dec->buffer_samples = mp3dec_decode_frame(&dec->mp3d, frame, MINIMP3_MIN(buf_size, (size_t)INT_MAX), dec->buffer, info); + dec->samples += dec->buffer_samples*info->channels; + } else + dec->samples += hdr_frame_samples(frame)*info->channels; + return 0; +} + +int mp3dec_ex_open_buf(mp3dec_ex_t *dec, const uint8_t *buf, size_t buf_size, int flags) +{ + if (!dec || !buf || (size_t)-1 == buf_size || (flags & (~MP3D_FLAGS_MASK))) + return MP3D_E_PARAM; + memset(dec, 0, sizeof(*dec)); + dec->file.buffer = buf; + dec->file.size = buf_size; + dec->flags = flags; + mp3dec_init(&dec->mp3d); + int ret = mp3dec_iterate_buf(dec->file.buffer, dec->file.size, mp3dec_load_index, dec); + if (ret && MP3D_E_USER != ret) + return ret; + mp3dec_init(&dec->mp3d); + dec->buffer_samples = 0; + dec->indexes_built = !(dec->vbr_tag_found || (flags & MP3D_DO_NOT_SCAN)); + dec->flags &= (~MP3D_DO_NOT_SCAN); + return 0; +} + +#ifndef MINIMP3_SEEK_IDX_LINEAR_SEARCH +static size_t mp3dec_idx_binary_search(mp3dec_index_t *idx, uint64_t position) +{ + size_t end = idx->num_frames, start = 0, index = 0; + while (start <= end) + { + size_t mid = (start + end) / 2; + if (idx->frames[mid].sample >= position) + { /* move left side. */ + if (idx->frames[mid].sample == position) + return mid; + end = mid - 1; + } else + { /* move to right side */ + index = mid; + start = mid + 1; + if (start == idx->num_frames) + break; + } + } + return index; +} +#endif + +int mp3dec_ex_seek(mp3dec_ex_t *dec, uint64_t position) +{ + size_t i; + if (!dec) + return MP3D_E_PARAM; + if (!(dec->flags & MP3D_SEEK_TO_SAMPLE)) + { + if (dec->io) + { + dec->offset = position; + } else + { + dec->offset = MINIMP3_MIN(position, dec->file.size); + } + dec->cur_sample = 0; + goto do_exit; + } + dec->cur_sample = position; + position += dec->start_delay; + if (0 == position) + { /* optimize seek to zero, no index needed */ +seek_zero: + dec->offset = dec->start_offset; + dec->to_skip = 0; + goto do_exit; + } + if (!dec->indexes_built) + { /* no index created yet (vbr tag used to calculate track length or MP3D_DO_NOT_SCAN open flag used) */ + dec->indexes_built = 1; + dec->samples = 0; + dec->buffer_samples = 0; + if (dec->io) + { + if (dec->io->seek(dec->start_offset, dec->io->seek_data)) + return MP3D_E_IOERROR; + int ret = mp3dec_iterate_cb(dec->io, (uint8_t *)dec->file.buffer, dec->file.size, mp3dec_load_index, dec); + if (ret && MP3D_E_USER != ret) + return ret; + } else + { + int ret = mp3dec_iterate_buf(dec->file.buffer + dec->start_offset, dec->file.size - dec->start_offset, mp3dec_load_index, dec); + if (ret && MP3D_E_USER != ret) + return ret; + } + for (i = 0; i < dec->index.num_frames; i++) + dec->index.frames[i].offset += dec->start_offset; + dec->samples = dec->detected_samples; + } + if (!dec->index.frames) + goto seek_zero; /* no frames in file - seek to zero */ +#ifdef MINIMP3_SEEK_IDX_LINEAR_SEARCH + for (i = 0; i < dec->index.num_frames; i++) + { + if (dec->index.frames[i].sample >= position) + break; + } +#else + i = mp3dec_idx_binary_search(&dec->index, position); +#endif + if (i) + { + int to_fill_bytes = 511; + int skip_frames = MINIMP3_PREDECODE_FRAMES +#ifdef MINIMP3_SEEK_IDX_LINEAR_SEARCH + + ((dec->index.frames[i].sample == position) ? 0 : 1) +#endif + ; + i -= MINIMP3_MIN(i, (size_t)skip_frames); + if (3 == dec->info.layer) + { + while (i && to_fill_bytes) + { /* make sure bit-reservoir is filled when we start decoding */ + bs_t bs[1]; + L3_gr_info_t gr_info[4]; + int frame_bytes, frame_size; + const uint8_t *hdr; + if (dec->io) + { + hdr = dec->file.buffer; + if (dec->io->seek(dec->index.frames[i - 1].offset, dec->io->seek_data)) + return MP3D_E_IOERROR; + size_t readed = dec->io->read((uint8_t *)hdr, HDR_SIZE, dec->io->read_data); + if (readed != HDR_SIZE) + return MP3D_E_IOERROR; + frame_size = hdr_frame_bytes(hdr, dec->free_format_bytes) + hdr_padding(hdr); + readed = dec->io->read((uint8_t *)hdr + HDR_SIZE, frame_size - HDR_SIZE, dec->io->read_data); + if (readed != (size_t)(frame_size - HDR_SIZE)) + return MP3D_E_IOERROR; + bs_init(bs, hdr + HDR_SIZE, frame_size - HDR_SIZE); + } else + { + hdr = dec->file.buffer + dec->index.frames[i - 1].offset; + frame_size = hdr_frame_bytes(hdr, dec->free_format_bytes) + hdr_padding(hdr); + bs_init(bs, hdr + HDR_SIZE, frame_size - HDR_SIZE); + } + if (HDR_IS_CRC(hdr)) + get_bits(bs, 16); + i--; + if (L3_read_side_info(bs, gr_info, hdr) < 0) + break; /* frame not decodable, we can start from here */ + frame_bytes = (bs->limit - bs->pos)/8; + to_fill_bytes -= MINIMP3_MIN(to_fill_bytes, frame_bytes); + } + } + } + dec->offset = dec->index.frames[i].offset; + dec->to_skip = position - dec->index.frames[i].sample; + while ((i + 1) < dec->index.num_frames && !dec->index.frames[i].sample && !dec->index.frames[i + 1].sample) + { /* skip not decodable first frames */ + const uint8_t *hdr; + if (dec->io) + { + hdr = dec->file.buffer; + if (dec->io->seek(dec->index.frames[i].offset, dec->io->seek_data)) + return MP3D_E_IOERROR; + size_t readed = dec->io->read((uint8_t *)hdr, HDR_SIZE, dec->io->read_data); + if (readed != HDR_SIZE) + return MP3D_E_IOERROR; + } else + hdr = dec->file.buffer + dec->index.frames[i].offset; + dec->to_skip += hdr_frame_samples(hdr)*dec->info.channels; + i++; + } +do_exit: + if (dec->io) + { + if (dec->io->seek(dec->offset, dec->io->seek_data)) + return MP3D_E_IOERROR; + } + dec->buffer_samples = 0; + dec->buffer_consumed = 0; + dec->input_consumed = 0; + dec->input_filled = 0; + dec->last_error = 0; + mp3dec_init(&dec->mp3d); + return 0; +} + +size_t mp3dec_ex_read_frame(mp3dec_ex_t *dec, mp3d_sample_t **buf, mp3dec_frame_info_t *frame_info, size_t max_samples) +{ + if (!dec || !buf || !frame_info) + { + if (dec) + dec->last_error = MP3D_E_PARAM; + return 0; + } + if (dec->detected_samples && dec->cur_sample >= dec->detected_samples) + return 0; /* at end of stream */ + if (dec->last_error) + return 0; /* error eof state, seek can reset it */ + *buf = NULL; + uint64_t end_offset = dec->end_offset ? dec->end_offset : dec->file.size; + int eof = 0; + while (dec->buffer_consumed == dec->buffer_samples) + { + const uint8_t *dec_buf; + if (dec->io) + { + if (!eof && (dec->input_filled - dec->input_consumed) < MINIMP3_BUF_SIZE) + { /* keep minimum 10 consecutive mp3 frames (~16KB) worst case */ + memmove((uint8_t*)dec->file.buffer, (uint8_t*)dec->file.buffer + dec->input_consumed, dec->input_filled - dec->input_consumed); + dec->input_filled -= dec->input_consumed; + dec->input_consumed = 0; + size_t readed = dec->io->read((uint8_t*)dec->file.buffer + dec->input_filled, dec->file.size - dec->input_filled, dec->io->read_data); + if (readed > (dec->file.size - dec->input_filled)) + { + dec->last_error = MP3D_E_IOERROR; + readed = 0; + } + if (readed != (dec->file.size - dec->input_filled)) + eof = 1; + dec->input_filled += readed; + if (eof) + mp3dec_skip_id3v1((uint8_t*)dec->file.buffer, &dec->input_filled); + } + dec_buf = dec->file.buffer + dec->input_consumed; + if (!(dec->input_filled - dec->input_consumed)) + return 0; + dec->buffer_samples = mp3dec_decode_frame(&dec->mp3d, dec_buf, dec->input_filled - dec->input_consumed, dec->buffer, frame_info); + dec->input_consumed += frame_info->frame_bytes; + } else + { + dec_buf = dec->file.buffer + dec->offset; + uint64_t buf_size = end_offset - dec->offset; + if (!buf_size) + return 0; + dec->buffer_samples = mp3dec_decode_frame(&dec->mp3d, dec_buf, MINIMP3_MIN(buf_size, (uint64_t)INT_MAX), dec->buffer, frame_info); + } + dec->buffer_consumed = 0; + if (dec->info.hz != frame_info->hz || dec->info.layer != frame_info->layer) + { +return_e_decode: + dec->last_error = MP3D_E_DECODE; + return 0; + } + if (dec->buffer_samples) + { + dec->buffer_samples *= frame_info->channels; + if (dec->to_skip) + { + size_t skip = MINIMP3_MIN(dec->buffer_samples, dec->to_skip); + dec->buffer_consumed += skip; + dec->to_skip -= skip; + } + if ( +#ifdef MINIMP3_ALLOW_MONO_STEREO_TRANSITION + !(dec->flags & MP3D_ALLOW_MONO_STEREO_TRANSITION) && +#endif + dec->buffer_consumed != dec->buffer_samples && dec->info.channels != frame_info->channels) + { + goto return_e_decode; + } + } else if (dec->to_skip) + { /* In mp3 decoding not always can start decode from any frame because of bit reservoir, + count skip samples for such frames */ + int frame_samples = hdr_frame_samples(dec_buf)*frame_info->channels; + dec->to_skip -= MINIMP3_MIN(frame_samples, dec->to_skip); + } + dec->offset += frame_info->frame_bytes; + } + size_t out_samples = MINIMP3_MIN((size_t)(dec->buffer_samples - dec->buffer_consumed), max_samples); + if (dec->detected_samples) + { /* count decoded samples to properly cut padding */ + if (dec->cur_sample + out_samples >= dec->detected_samples) + out_samples = dec->detected_samples - dec->cur_sample; + } + dec->cur_sample += out_samples; + *buf = dec->buffer + dec->buffer_consumed; + dec->buffer_consumed += out_samples; + return out_samples; +} + +size_t mp3dec_ex_read(mp3dec_ex_t *dec, mp3d_sample_t *buf, size_t samples) +{ + if (!dec || !buf) + { + if (dec) + dec->last_error = MP3D_E_PARAM; + return 0; + } + mp3dec_frame_info_t frame_info; + memset(&frame_info, 0, sizeof(frame_info)); + size_t samples_requested = samples; + while (samples) + { + mp3d_sample_t *buf_frame = NULL; + size_t read_samples = mp3dec_ex_read_frame(dec, &buf_frame, &frame_info, samples); + if (!read_samples) + { + break; + } + memcpy(buf, buf_frame, read_samples * sizeof(mp3d_sample_t)); + buf += read_samples; + samples -= read_samples; + } + return samples_requested - samples; +} + +int mp3dec_ex_open_cb(mp3dec_ex_t *dec, mp3dec_io_t *io, int flags) +{ + if (!dec || !io || (flags & (~MP3D_FLAGS_MASK))) + return MP3D_E_PARAM; + memset(dec, 0, sizeof(*dec)); +#ifdef MINIMP3_HAVE_RING + int ret; + if (ret = mp3dec_open_ring(&dec->file, MINIMP3_IO_SIZE)) + return ret; +#else + dec->file.size = MINIMP3_IO_SIZE; + dec->file.buffer = (const uint8_t*)malloc(dec->file.size); + if (!dec->file.buffer) + return MP3D_E_MEMORY; +#endif + dec->flags = flags; + dec->io = io; + mp3dec_init(&dec->mp3d); + if (io->seek(0, io->seek_data)) + return MP3D_E_IOERROR; + int ret = mp3dec_iterate_cb(io, (uint8_t *)dec->file.buffer, dec->file.size, mp3dec_load_index, dec); + if (ret && MP3D_E_USER != ret) + return ret; + if (dec->io->seek(dec->start_offset, dec->io->seek_data)) + return MP3D_E_IOERROR; + mp3dec_init(&dec->mp3d); + dec->buffer_samples = 0; + dec->indexes_built = !(dec->vbr_tag_found || (flags & MP3D_DO_NOT_SCAN)); + dec->flags &= (~MP3D_DO_NOT_SCAN); + return 0; +} + + +#ifndef MINIMP3_NO_STDIO + +#if defined(__linux__) || defined(__FreeBSD__) +#include +#include +#include +#include +#include +#include +#if !defined(_GNU_SOURCE) +#include +#include +#endif +#if !defined(MAP_POPULATE) && defined(__linux__) +#define MAP_POPULATE 0x08000 +#elif !defined(MAP_POPULATE) +#define MAP_POPULATE 0 +#endif + +static void mp3dec_close_file(mp3dec_map_info_t *map_info) +{ + if (map_info->buffer && MAP_FAILED != map_info->buffer) + munmap((void *)map_info->buffer, map_info->size); + map_info->buffer = 0; + map_info->size = 0; +} + +static int mp3dec_open_file(const char *file_name, mp3dec_map_info_t *map_info) +{ + if (!file_name) + return MP3D_E_PARAM; + int file; + struct stat st; + memset(map_info, 0, sizeof(*map_info)); +retry_open: + file = open(file_name, O_RDONLY); + if (file < 0 && (errno == EAGAIN || errno == EINTR)) + goto retry_open; + if (file < 0 || fstat(file, &st) < 0) + { + close(file); + return MP3D_E_IOERROR; + } + + map_info->size = st.st_size; +retry_mmap: + map_info->buffer = (const uint8_t *)mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE | MAP_POPULATE, file, 0); + if (MAP_FAILED == map_info->buffer && (errno == EAGAIN || errno == EINTR)) + goto retry_mmap; + close(file); + if (MAP_FAILED == map_info->buffer) + return MP3D_E_IOERROR; + return 0; +} + +#if MINIMP3_ENABLE_RING && defined(__linux__) && defined(_GNU_SOURCE) +#define MINIMP3_HAVE_RING +static void mp3dec_close_ring(mp3dec_map_info_t *map_info) +{ +#if defined(__linux__) && defined(_GNU_SOURCE) + if (map_info->buffer && MAP_FAILED != map_info->buffer) + munmap((void *)map_info->buffer, map_info->size*2); +#else + if (map_info->buffer) + { + shmdt(map_info->buffer); + shmdt(map_info->buffer + map_info->size); + } +#endif + map_info->buffer = 0; + map_info->size = 0; +} + +static int mp3dec_open_ring(mp3dec_map_info_t *map_info, size_t size) +{ + int memfd, page_size; +#if defined(__linux__) && defined(_GNU_SOURCE) + void *buffer; + int res; +#endif + memset(map_info, 0, sizeof(*map_info)); + +#ifdef _SC_PAGESIZE + page_size = sysconf(_SC_PAGESIZE); +#else + page_size = getpagesize(); +#endif + map_info->size = (size + page_size - 1)/page_size*page_size; + +#if defined(__linux__) && defined(_GNU_SOURCE) + memfd = memfd_create("mp3_ring", 0); + if (memfd < 0) + return MP3D_E_MEMORY; + +retry_ftruncate: + res = ftruncate(memfd, map_info->size); + if (res && (errno == EAGAIN || errno == EINTR)) + goto retry_ftruncate; + if (res) + goto error; + +retry_mmap: + map_info->buffer = (const uint8_t *)mmap(NULL, map_info->size*2, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + if (MAP_FAILED == map_info->buffer && (errno == EAGAIN || errno == EINTR)) + goto retry_mmap; + if (MAP_FAILED == map_info->buffer || !map_info->buffer) + goto error; +retry_mmap2: + buffer = mmap((void *)map_info->buffer, map_info->size, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, memfd, 0); + if (MAP_FAILED == map_info->buffer && (errno == EAGAIN || errno == EINTR)) + goto retry_mmap2; + if (MAP_FAILED == map_info->buffer || buffer != (void *)map_info->buffer) + goto error; +retry_mmap3: + buffer = mmap((void *)map_info->buffer + map_info->size, map_info->size, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, memfd, 0); + if (MAP_FAILED == map_info->buffer && (errno == EAGAIN || errno == EINTR)) + goto retry_mmap3; + if (MAP_FAILED == map_info->buffer || buffer != (void *)(map_info->buffer + map_info->size)) + goto error; + + close(memfd); + return 0; +error: + close(memfd); + mp3dec_close_ring(map_info); + return MP3D_E_MEMORY; +#else + memfd = shmget(IPC_PRIVATE, map_info->size, IPC_CREAT | 0700); + if (memfd < 0) + return MP3D_E_MEMORY; +retry_mmap: + map_info->buffer = (const uint8_t *)mmap(NULL, map_info->size*2, PROT_NONE, MAP_PRIVATE, -1, 0); + if (MAP_FAILED == map_info->buffer && (errno == EAGAIN || errno == EINTR)) + goto retry_mmap; + if (MAP_FAILED == map_info->buffer) + goto error; + if (map_info->buffer != shmat(memfd, map_info->buffer, 0)) + goto error; + if ((map_info->buffer + map_info->size) != shmat(memfd, map_info->buffer + map_info->size, 0)) + goto error; + if (shmctl(memfd, IPC_RMID, NULL) < 0) + return MP3D_E_MEMORY; + return 0; +error: + shmctl(memfd, IPC_RMID, NULL); + mp3dec_close_ring(map_info); + return MP3D_E_MEMORY; +#endif +} +#endif /*MINIMP3_ENABLE_RING*/ +#elif defined(_WIN32) +#include + +static void mp3dec_close_file(mp3dec_map_info_t *map_info) +{ + if (map_info->buffer) + UnmapViewOfFile(map_info->buffer); + map_info->buffer = 0; + map_info->size = 0; +} + +static int mp3dec_open_file_h(HANDLE file, mp3dec_map_info_t *map_info) +{ + memset(map_info, 0, sizeof(*map_info)); + + HANDLE mapping = NULL; + LARGE_INTEGER s; + s.LowPart = GetFileSize(file, (DWORD*)&s.HighPart); + if (s.LowPart == INVALID_FILE_SIZE && GetLastError() != NO_ERROR) + goto error; + map_info->size = s.QuadPart; + + mapping = CreateFileMapping(file, NULL, PAGE_READONLY, 0, 0, NULL); + if (!mapping) + goto error; + map_info->buffer = (const uint8_t*)MapViewOfFile(mapping, FILE_MAP_READ, 0, 0, s.QuadPart); + CloseHandle(mapping); + if (!map_info->buffer) + goto error; + + CloseHandle(file); + return 0; +error: + mp3dec_close_file(map_info); + CloseHandle(file); + return MP3D_E_IOERROR; +} + +static int mp3dec_open_file(const char *file_name, mp3dec_map_info_t *map_info) +{ + if (!file_name) + return MP3D_E_PARAM; + HANDLE file = CreateFileA(file_name, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0); + if (INVALID_HANDLE_VALUE == file) + return MP3D_E_IOERROR; + return mp3dec_open_file_h(file, map_info); +} + +static int mp3dec_open_file_w(const wchar_t *file_name, mp3dec_map_info_t *map_info) +{ + if (!file_name) + return MP3D_E_PARAM; + HANDLE file = CreateFileW(file_name, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0); + if (INVALID_HANDLE_VALUE == file) + return MP3D_E_IOERROR; + return mp3dec_open_file_h(file, map_info); +} +#else +#include + +static void mp3dec_close_file(mp3dec_map_info_t *map_info) +{ + if (map_info->buffer) + free((void *)map_info->buffer); + map_info->buffer = 0; + map_info->size = 0; +} + +static int mp3dec_open_file(const char *file_name, mp3dec_map_info_t *map_info) +{ + if (!file_name) + return MP3D_E_PARAM; + memset(map_info, 0, sizeof(*map_info)); + FILE *file = fopen(file_name, "rb"); + if (!file) + return MP3D_E_IOERROR; + int res = MP3D_E_IOERROR; + long size = -1; + if (fseek(file, 0, SEEK_END)) + goto error; + size = ftell(file); + if (size < 0) + goto error; + map_info->size = (size_t)size; + if (fseek(file, 0, SEEK_SET)) + goto error; + map_info->buffer = (uint8_t *)malloc(map_info->size); + if (!map_info->buffer) + { + res = MP3D_E_MEMORY; + goto error; + } + if (fread((void *)map_info->buffer, 1, map_info->size, file) != map_info->size) + goto error; + fclose(file); + return 0; +error: + mp3dec_close_file(map_info); + fclose(file); + return res; +} +#endif + +static int mp3dec_detect_mapinfo(mp3dec_map_info_t *map_info) +{ + int ret = mp3dec_detect_buf(map_info->buffer, map_info->size); + mp3dec_close_file(map_info); + return ret; +} + +static int mp3dec_load_mapinfo(mp3dec_t *dec, mp3dec_map_info_t *map_info, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data) +{ + int ret = mp3dec_load_buf(dec, map_info->buffer, map_info->size, info, progress_cb, user_data); + mp3dec_close_file(map_info); + return ret; +} + +static int mp3dec_iterate_mapinfo(mp3dec_map_info_t *map_info, MP3D_ITERATE_CB callback, void *user_data) +{ + int ret = mp3dec_iterate_buf(map_info->buffer, map_info->size, callback, user_data); + mp3dec_close_file(map_info); + return ret; +} + +static int mp3dec_ex_open_mapinfo(mp3dec_ex_t *dec, int flags) +{ + int ret = mp3dec_ex_open_buf(dec, dec->file.buffer, dec->file.size, flags); + dec->is_file = 1; + if (ret) + mp3dec_ex_close(dec); + return ret; +} + +int mp3dec_detect(const char *file_name) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file(file_name, &map_info))) + return ret; + return mp3dec_detect_mapinfo(&map_info); +} + +int mp3dec_load(mp3dec_t *dec, const char *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file(file_name, &map_info))) + return ret; + return mp3dec_load_mapinfo(dec, &map_info, info, progress_cb, user_data); +} + +int mp3dec_iterate(const char *file_name, MP3D_ITERATE_CB callback, void *user_data) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file(file_name, &map_info))) + return ret; + return mp3dec_iterate_mapinfo(&map_info, callback, user_data); +} + +int mp3dec_ex_open(mp3dec_ex_t *dec, const char *file_name, int flags) +{ + int ret; + if (!dec) + return MP3D_E_PARAM; + if ((ret = mp3dec_open_file(file_name, &dec->file))) + return ret; + return mp3dec_ex_open_mapinfo(dec, flags); +} + +void mp3dec_ex_close(mp3dec_ex_t *dec) +{ +#ifdef MINIMP3_HAVE_RING + if (dec->io) + mp3dec_close_ring(&dec->file); +#else + if (dec->io && dec->file.buffer) + free((void*)dec->file.buffer); +#endif + if (dec->is_file) + mp3dec_close_file(&dec->file); + if (dec->index.frames) + free(dec->index.frames); + memset(dec, 0, sizeof(*dec)); +} + +#ifdef _WIN32 +int mp3dec_detect_w(const wchar_t *file_name) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file_w(file_name, &map_info))) + return ret; + return mp3dec_detect_mapinfo(&map_info); +} + +int mp3dec_load_w(mp3dec_t *dec, const wchar_t *file_name, mp3dec_file_info_t *info, MP3D_PROGRESS_CB progress_cb, void *user_data) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file_w(file_name, &map_info))) + return ret; + return mp3dec_load_mapinfo(dec, &map_info, info, progress_cb, user_data); +} + +int mp3dec_iterate_w(const wchar_t *file_name, MP3D_ITERATE_CB callback, void *user_data) +{ + int ret; + mp3dec_map_info_t map_info; + if ((ret = mp3dec_open_file_w(file_name, &map_info))) + return ret; + return mp3dec_iterate_mapinfo(&map_info, callback, user_data); +} + +int mp3dec_ex_open_w(mp3dec_ex_t *dec, const wchar_t *file_name, int flags) +{ + int ret; + if ((ret = mp3dec_open_file_w(file_name, &dec->file))) + return ret; + return mp3dec_ex_open_mapinfo(dec, flags); +} +#endif +#else /* MINIMP3_NO_STDIO */ +void mp3dec_ex_close(mp3dec_ex_t *dec) +{ +#ifdef MINIMP3_HAVE_RING + if (dec->io) + mp3dec_close_ring(&dec->file); +#else + if (dec->io && dec->file.buffer) + free((void*)dec->file.buffer); +#endif + if (dec->index.frames) + free(dec->index.frames); + memset(dec, 0, sizeof(*dec)); +} +#endif + +#endif /* MINIMP3_IMPLEMENTATION && !_MINIMP3_EX_IMPLEMENTATION_GUARD */ diff --git a/src/codecs/music_drmp3.c b/src/codecs/music_drmp3.c deleted file mode 100644 index 1b2830e9c..000000000 --- a/src/codecs/music_drmp3.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - SDL_mixer: An audio mixer library based on the SDL library - Copyright (C) 1997-2024 Sam Lantinga - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ - -#ifdef MUSIC_MP3_DRMP3 - -#include "music_drmp3.h" -#include "mp3utils.h" -#include "SDL.h" - -#define DR_MP3_IMPLEMENTATION -#if defined(__GNUC__) && (__GNUC__ >= 4) && \ - !(defined(_WIN32) || defined(__EMX__)) -#define DRMP3_API __attribute__((visibility("hidden"))) -#elif defined(__APPLE__) -#define DRMP3_API __private_extern__ -#else -#define DRMP3_API /* just in case.. */ -#endif -#define DR_MP3_NO_STDIO -#define DRMP3_ASSERT(expression) -#define DRMP3_COPY_MEMORY(dst, src, sz) SDL_memcpy((dst), (src), (sz)) -#define DRMP3_MOVE_MEMORY(dst, src, sz) SDL_memmove((dst), (src), (sz)) -#define DRMP3_ZERO_MEMORY(p, sz) SDL_memset((p), 0, (sz)) -#define DRMP3_MALLOC(sz) SDL_malloc((sz)) -#define DRMP3_REALLOC(p, sz) SDL_realloc((p), (sz)) -#define DRMP3_FREE(p) SDL_free((p)) -#include "dr_libs/dr_mp3.h" - - -typedef struct { - struct mp3file_t file; - drmp3 dec; - int play_count; - int freesrc; - int volume; - int status; - SDL_AudioStream *stream; - drmp3_int16 *buffer; - int buffer_size; - int channels; - - Mix_MusicMetaTags tags; -} DRMP3_Music; - - -static size_t DRMP3_ReadCB(void *context, void *buf, size_t size) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - return MP3_RWread(&music->file, buf, 1, size); -} - -static drmp3_bool32 DRMP3_SeekCB(void *context, int offset, drmp3_seek_origin origin) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - int whence = (origin == drmp3_seek_origin_start) ? RW_SEEK_SET : RW_SEEK_CUR; - if (MP3_RWseek(&music->file, offset, whence) < 0) { - return DRMP3_FALSE; - } - return DRMP3_TRUE; -} - -static int DRMP3_Seek(void *context, double position); - -static void *DRMP3_CreateFromRW(SDL_RWops *src, int freesrc) -{ - DRMP3_Music *music; - - music = (DRMP3_Music *)SDL_calloc(1, sizeof(DRMP3_Music)); - if (!music) { - SDL_OutOfMemory(); - return NULL; - } - music->volume = MIX_MAX_VOLUME; - - if (MP3_RWinit(&music->file, src) < 0) { - SDL_free(music); - return NULL; - } - - meta_tags_init(&music->tags); - if (mp3_read_tags(&music->tags, &music->file, SDL_FALSE) < 0) { - SDL_free(music); - Mix_SetError("music_drmp3: corrupt mp3 file (bad tags)."); - return NULL; - } - - MP3_RWseek(&music->file, 0, RW_SEEK_SET); - - if (!drmp3_init(&music->dec, DRMP3_ReadCB, DRMP3_SeekCB, music, NULL)) { - SDL_free(music); - Mix_SetError("music_drmp3: corrupt mp3 file (bad stream)."); - return NULL; - } - - music->channels = music->dec.channels; - music->stream = SDL_NewAudioStream(AUDIO_S16SYS, - (Uint8)music->channels, - (int)music->dec.sampleRate, - music_spec.format, - music_spec.channels, - music_spec.freq); - if (!music->stream) { - SDL_OutOfMemory(); - drmp3_uninit(&music->dec); - SDL_free(music); - return NULL; - } - - music->buffer_size = music_spec.samples * sizeof(drmp3_int16) * music->channels; - music->buffer = (drmp3_int16*)SDL_calloc(1, music->buffer_size); - if (!music->buffer) { - drmp3_uninit(&music->dec); - SDL_OutOfMemory(); - SDL_free(music); - return NULL; - } - - music->freesrc = freesrc; - return music; -} - -static void DRMP3_SetVolume(void *context, int volume) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - music->volume = volume; -} - -static int DRMP3_GetVolume(void *context) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - return music->volume; -} - -/* Starts the playback. */ -static int DRMP3_Play(void *context, int play_count) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - music->play_count = play_count; - return DRMP3_Seek(music, 0.0); -} - -static void DRMP3_Stop(void *context) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - SDL_AudioStreamClear(music->stream); -} - -static int DRMP3_GetSome(void *context, void *data, int bytes, SDL_bool *done) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - int filled; - drmp3_uint64 amount; - - if (music->stream) { - filled = SDL_AudioStreamGet(music->stream, data, bytes); - if (filled != 0) { - return filled; - } - } - - if (!music->play_count) { - /* All done */ - *done = SDL_TRUE; - return 0; - } - - amount = drmp3_read_pcm_frames_s16(&music->dec, music_spec.samples, music->buffer); - if (amount > 0) { - if (SDL_AudioStreamPut(music->stream, music->buffer, (int)amount * sizeof(drmp3_int16) * music->channels) < 0) { - return -1; - } - } else { - if (music->play_count == 1) { - music->play_count = 0; - SDL_AudioStreamFlush(music->stream); - } else { - int play_count = -1; - if (music->play_count > 0) { - play_count = (music->play_count - 1); - } - if (DRMP3_Play(music, play_count) < 0) { - return -1; - } - } - } - - return 0; -} - -static int DRMP3_GetAudio(void *context, void *data, int bytes) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - return music_pcm_getaudio(context, data, bytes, music->volume, DRMP3_GetSome); -} - -static int DRMP3_Seek(void *context, double position) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - drmp3_uint64 destpos = (drmp3_uint64)(position * music->dec.sampleRate); - drmp3_seek_to_pcm_frame(&music->dec, destpos); - return 0; -} - -static double DRMP3_Tell(void *context) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - return (double)music->dec.currentPCMFrame / music->dec.sampleRate; -} - -static double DRMP3_Duration(void *context) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - drmp3_uint64 samples = drmp3_get_pcm_frame_count(&music->dec); - return (double)samples / music->dec.sampleRate; -} - -static const char* DRMP3_GetMetaTag(void *context, Mix_MusicMetaTag tag_type) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - return meta_tags_get(&music->tags, tag_type); -} - -static void DRMP3_Delete(void *context) -{ - DRMP3_Music *music = (DRMP3_Music *)context; - - drmp3_uninit(&music->dec); - meta_tags_clear(&music->tags); - - if (music->stream) { - SDL_FreeAudioStream(music->stream); - } - if (music->buffer) { - SDL_free(music->buffer); - } - if (music->freesrc) { - SDL_RWclose(music->file.src); - } - SDL_free(music); -} - -Mix_MusicInterface Mix_MusicInterface_DRMP3 = -{ - "DRMP3", - MIX_MUSIC_DRMP3, - MUS_MP3, - SDL_FALSE, - SDL_FALSE, - - NULL, /* Load */ - NULL, /* Open */ - DRMP3_CreateFromRW, - NULL, /* CreateFromFile */ - DRMP3_SetVolume, - DRMP3_GetVolume, - DRMP3_Play, - NULL, /* IsPlaying */ - DRMP3_GetAudio, - NULL, /* Jump */ - DRMP3_Seek, - DRMP3_Tell, - DRMP3_Duration, - NULL, /* LoopStart */ - NULL, /* LoopEnd */ - NULL, /* LoopLength */ - DRMP3_GetMetaTag, - NULL, /* GetNumTracks */ - NULL, /* StartTrack */ - NULL, /* Pause */ - NULL, /* Resume */ - DRMP3_Stop, - DRMP3_Delete, - NULL, /* Close */ - NULL /* Unload */ -}; - -#endif /* MUSIC_MP3_DRMP3 */ - -/* vi: set ts=4 sw=4 expandtab: */ diff --git a/src/codecs/music_minimp3.c b/src/codecs/music_minimp3.c new file mode 100644 index 000000000..fee999076 --- /dev/null +++ b/src/codecs/music_minimp3.c @@ -0,0 +1,290 @@ +/* + SDL_mixer: An audio mixer library based on the SDL library + Copyright (C) 1997-2024 Sam Lantinga + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +#ifdef MUSIC_MP3_MINIMP3 + +#include "music_minimp3.h" +#include "mp3utils.h" + +#define MINIMP3_IMPLEMENTATION +#define MINIMP3_NO_STDIO +#include "minimp3/minimp3_ex.h" + + +typedef struct { + struct mp3file_t file; + int play_count; + int freesrc; + mp3dec_ex_t dec; + mp3dec_io_t io; + int volume; + int status; + SDL_AudioStream *stream; + mp3d_sample_t *buffer; + int buffer_size; + uint64_t second_length; + int channels; + + Mix_MusicMetaTags tags; +} MiniMP3_Music; + + +static size_t MiniMP3_ReadCB(void *buf, size_t size, void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return MP3_RWread(&music->file, buf, 1, size); +} + +static int MiniMP3_SeekCB(uint64_t position, void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + if (MP3_RWseek(&music->file, position, RW_SEEK_SET) < 0) { + return -1; + } + return 0; +} + +static int MINIMP3_Seek(void *context, double position); + +static void *MINIMP3_CreateFromRW(SDL_RWops *src, int freesrc) +{ + MiniMP3_Music *music; + + music = (MiniMP3_Music *)SDL_calloc(1, sizeof(MiniMP3_Music)); + if (!music) { + SDL_OutOfMemory(); + return NULL; + } + music->volume = MIX_MAX_VOLUME; + + if (MP3_RWinit(&music->file, src) < 0) { + SDL_free(music); + return NULL; + } + + meta_tags_init(&music->tags); + if (mp3_read_tags(&music->tags, &music->file, SDL_FALSE) < 0) { + SDL_free(music); + Mix_SetError("music_minimp3: corrupt mp3 file (bad tags)."); + return NULL; + } + + music->io.read = MiniMP3_ReadCB; + music->io.read_data = music; + music->io.seek = MiniMP3_SeekCB; + music->io.seek_data = music; + + MP3_RWseek(&music->file, 0, RW_SEEK_SET); + + if (mp3dec_ex_open_cb(&music->dec, &music->io, MP3D_SEEK_TO_SAMPLE) != 0) { + mp3dec_ex_close(&music->dec); + SDL_free(music); + Mix_SetError("music_minimp3: corrupt mp3 file (bad stream)."); + return NULL; + } + + music->stream = SDL_NewAudioStream(AUDIO_S16SYS, + (Uint8)music->dec.info.channels, + (int)music->dec.info.hz, + music_spec.format, + music_spec.channels, + music_spec.freq); + if (!music->stream) { + SDL_OutOfMemory(); + mp3dec_ex_close(&music->dec); + SDL_free(music); + return NULL; + } + + music->channels = music->dec.info.channels; + music->second_length = music->channels * music->dec.info.hz; + music->buffer_size = music_spec.samples * sizeof(mp3d_sample_t) * music->channels; + music->buffer = (mp3d_sample_t*)SDL_calloc(1, music->buffer_size); + if (!music->buffer) { + mp3dec_ex_close(&music->dec); + SDL_OutOfMemory(); + SDL_free(music); + return NULL; + } + + music->freesrc = freesrc; + return music; +} + +static void MINIMP3_SetVolume(void *context, int volume) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + music->volume = volume; +} + +static int MINIMP3_GetVolume(void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return music->volume; +} + +/* Starts the playback. */ +static int MINIMP3_Play(void *context, int play_count) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + music->play_count = play_count; + return MINIMP3_Seek(music, 0.0); +} + +static void MINIMP3_Stop(void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + SDL_AudioStreamClear(music->stream); +} + +static int MINIMP3_GetSome(void *context, void *data, int bytes, SDL_bool *done) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + int filled, amount; + + if (music->stream) { + filled = SDL_AudioStreamGet(music->stream, data, bytes); + if (filled != 0) { + return filled; + } + } + + if (!music->play_count) { + /* All done */ + *done = SDL_TRUE; + return 0; + } + + amount = mp3dec_ex_read(&music->dec, music->buffer, music_spec.samples * music->channels); + if (amount > 0) { + if (SDL_AudioStreamPut(music->stream, music->buffer, (int)amount * sizeof(mp3d_sample_t)) < 0) { + return -1; + } + } else { + if (music->play_count == 1) { + music->play_count = 0; + SDL_AudioStreamFlush(music->stream); + } else { + int play_count = -1; + if (music->play_count > 0) { + play_count = (music->play_count - 1); + } + if (MINIMP3_Play(music, play_count) < 0) { + return -1; + } + } + } + + return 0; +} + +static int MINIMP3_GetAudio(void *context, void *data, int bytes) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return music_pcm_getaudio(context, data, bytes, music->volume, MINIMP3_GetSome); +} + +static int MINIMP3_Seek(void *context, double position) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + uint64_t destpos = (uint64_t)(position * music->second_length); + if (destpos % music->channels != 0) { + destpos -= destpos % music->channels; + } + mp3dec_ex_seek(&music->dec, destpos); + return 0; +} + +static double MINIMP3_Tell(void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return (double)music->dec.cur_sample / music->second_length; +} + +static double MINIMP3_Duration(void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return (double)music->dec.samples / music->second_length; +} + +static const char* MINIMP3_GetMetaTag(void *context, Mix_MusicMetaTag tag_type) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + return meta_tags_get(&music->tags, tag_type); +} + +static void MINIMP3_Delete(void *context) +{ + MiniMP3_Music *music = (MiniMP3_Music *)context; + + mp3dec_ex_close(&music->dec); + meta_tags_clear(&music->tags); + + if (music->stream) { + SDL_FreeAudioStream(music->stream); + } + if (music->buffer) { + SDL_free(music->buffer); + } + if (music->freesrc) { + SDL_RWclose(music->file.src); + } + SDL_free(music); +} + +Mix_MusicInterface Mix_MusicInterface_MINIMP3 = +{ + "MINIMP3", + MIX_MUSIC_MINIMP3, + MUS_MP3, + SDL_FALSE, + SDL_FALSE, + + NULL, /* Load */ + NULL, /* Open */ + MINIMP3_CreateFromRW, + NULL, /* CreateFromFile */ + MINIMP3_SetVolume, + MINIMP3_GetVolume, + MINIMP3_Play, + NULL, /* IsPlaying */ + MINIMP3_GetAudio, + NULL, /* Jump */ + MINIMP3_Seek, + MINIMP3_Tell, + MINIMP3_Duration, + NULL, /* LoopStart */ + NULL, /* LoopEnd */ + NULL, /* LoopLength */ + MINIMP3_GetMetaTag, + NULL, /* GetNumTracks */ + NULL, /* StartTrack */ + NULL, /* Pause */ + NULL, /* Resume */ + MINIMP3_Stop, + MINIMP3_Delete, + NULL, /* Close */ + NULL /* Unload */ +}; + +#endif /* MUSIC_MP3_MINIMP3 */ + +/* vi: set ts=4 sw=4 expandtab: */ diff --git a/src/codecs/music_drmp3.h b/src/codecs/music_minimp3.h similarity index 90% rename from src/codecs/music_drmp3.h rename to src/codecs/music_minimp3.h index 862e09884..5de5ae580 100644 --- a/src/codecs/music_drmp3.h +++ b/src/codecs/music_minimp3.h @@ -19,10 +19,10 @@ 3. This notice may not be removed or altered from any source distribution. */ -/* This file supports playing MP3 files with dr_mp3 */ +/* This file supports playing MP3 files with MiniMP3 */ #include "music.h" -extern Mix_MusicInterface Mix_MusicInterface_DRMP3; +extern Mix_MusicInterface Mix_MusicInterface_MINIMP3; /* vi: set ts=4 sw=4 expandtab: */ diff --git a/src/music.c b/src/music.c index fd60f0c11..5fa93eddb 100644 --- a/src/music.c +++ b/src/music.c @@ -35,7 +35,7 @@ #include "music_timidity.h" #include "music_ogg.h" #include "music_opus.h" -#include "music_drmp3.h" +#include "music_minimp3.h" #include "music_mpg123.h" #include "music_drflac.h" #include "music_flac.h" @@ -181,8 +181,8 @@ static Mix_MusicInterface *s_music_interfaces[] = #ifdef MUSIC_OPUS &Mix_MusicInterface_Opus, #endif -#ifdef MUSIC_MP3_DRMP3 - &Mix_MusicInterface_DRMP3, +#ifdef MUSIC_MP3_MINIMP3 + &Mix_MusicInterface_MINIMP3, #endif #ifdef MUSIC_MP3_MPG123 &Mix_MusicInterface_MPG123, diff --git a/src/music.h b/src/music.h index 705e0a45b..c848c8d8b 100644 --- a/src/music.h +++ b/src/music.h @@ -34,7 +34,7 @@ typedef enum MIX_MUSIC_TIMIDITY, MIX_MUSIC_NATIVEMIDI, MIX_MUSIC_OGG, - MIX_MUSIC_DRMP3, + MIX_MUSIC_MINIMP3, MIX_MUSIC_MPG123, MIX_MUSIC_DRFLAC, MIX_MUSIC_FLAC,