Gstreamer bindings #103
Comments
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With a bunch of manual fixes I've been able to get it running, but that doesn't seem like the ideal way to do things |
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in reference to #102:
{ action }:
let src = import ./src.nix;
in import "${src.gotk4-nix}/${action}.nix" {
base = {
pname = "gotk4";
version = "dev";
buildInputs = pkgs: with pkgs; [ gst_all_1.gstreamer ];
};
pkgs = import "${src.gotk4-nix}/pkgs.nix" {
sourceNixpkgs = builtins.fetchTarball {
name = "gotk4-nixpkgs";
url = "https://github.com/NixOS/nixpkgs/archive/fbfb79400a08bf754e32b4d4fc3f7d8f8055cf94.tar.gz";
sha256 = "0pgyx1l1gj33g5i9kwjar7dc3sal2g14mhfljcajj8bqzzrbc3za";
};
useFetched = true;
};
}and running |
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Also, I added |
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Commit b27ae8a should fix the generator to work with this. It should just generate now. |
This is a weird error. I can't find an instance of |
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Yes, i was a few commits behind, everything is mostly working now, except for the error And a few errors in the generated code, and also a few errors in the existing code: |
You'll also have to add |
I'm not sure why your IDE is reporting these as errors. They build fine using the standard compiler. |
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Probably just a false positive. I added the package |
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Interesting. Is this a recursive type definition? Maybe add more logging there. |
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Where would I add logging? I'm not seeing anything relevant in the log output. Maybe there are too many types being generated? When I start it with the debugger enabled, it seems like there are a bit over 200 Goroutines active when it crashes |
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I've narrowed down the error to one GIR Namespace that I've excluded for now and that's working fine. _arg1 = (C.guintptr)(unsafe.Pointer(handle))to _arg1 = (C.guintptr)(handle)in https://github.com/OmegaRogue/gotk4-gstreamer/blob/main/pkg/gstvideo/videooverlay.go |
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Can you paste the relevant XML section(s) for these functions? |
<method name="set_window_handle"
c:identifier="gst_video_overlay_set_window_handle">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="330">This will call the video overlay's set_window_handle method. You
should use this method to tell to an overlay to display video output to a
specific window (e.g. an XWindow on X11). Passing 0 as the @handle will
tell the overlay to stop using that window and create an internal one.</doc>
<source-position filename="gst-libs/gst/video/videooverlay.h"
line="92"/>
<return-value transfer-ownership="none">
<type name="none" c:type="void"/>
</return-value>
<parameters>
<instance-parameter name="overlay" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="332">a #GstVideoOverlay to set the window on.</doc>
<type name="VideoOverlay" c:type="GstVideoOverlay*"/>
</instance-parameter>
<parameter name="handle" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="333">a handle referencing the window.</doc>
<type name="guintptr" c:type="guintptr"/>
</parameter>
</parameters>
</method>
<method name="got_window_handle"
c:identifier="gst_video_overlay_got_window_handle">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="355">This will post a "have-window-handle" element message on the bus.
This function should only be used by video overlay plugin developers.</doc>
<source-position filename="gst-libs/gst/video/videooverlay.h"
line="98"/>
<return-value transfer-ownership="none">
<type name="none" c:type="void"/>
</return-value>
<parameters>
<instance-parameter name="overlay" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="357">a #GstVideoOverlay which got a window</doc>
<type name="VideoOverlay" c:type="GstVideoOverlay*"/>
</instance-parameter>
<parameter name="handle" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="358">a platform-specific handle referencing the window</doc>
<type name="guintptr" c:type="guintptr"/>
</parameter>
</parameters>
</method>
<virtual-method name="set_window_handle" invoker="set_window_handle">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="330">This will call the video overlay's set_window_handle method. You
should use this method to tell to an overlay to display video output to a
specific window (e.g. an XWindow on X11). Passing 0 as the @handle will
tell the overlay to stop using that window and create an internal one.</doc>
<source-position filename="gst-libs/gst/video/videooverlay.h"
line="69"/>
<return-value transfer-ownership="none">
<type name="none" c:type="void"/>
</return-value>
<parameters>
<instance-parameter name="overlay" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="332">a #GstVideoOverlay to set the window on.</doc>
<type name="VideoOverlay" c:type="GstVideoOverlay*"/>
</instance-parameter>
<parameter name="handle" transfer-ownership="none">
<doc xml:space="preserve"
filename="gst-libs/gst/video/videooverlay.c"
line="333">a handle referencing the window.</doc>
<type name="guintptr" c:type="guintptr"/>
</parameter>
</parameters>
</virtual-method>
`` |
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Hmm, maybe the C function definition in the code is wrong. It happens sometimes. Maybe try using |
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i really dont see anything that could be wrong there &gir.CallableAttrs{
Name: "got_window_handle",
CIdentifier: "gst_video_overlay_got_window_handle",
ShadowedBy: "",
Shadows: "",
Throws: false,
MovedTo: "",
Parameters: &gir.Parameters{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"parameters"},
InstanceParameter: &gir.InstanceParameter{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"instance-parameter"},
ParameterAttrs: gir.ParameterAttrs{
Name: "overlay",
Direction: "",
Scope: "",
Closure: (*int)(nil),
Destroy: (*int)(nil),
CallerAllocates: false,
Skip: false,
Optional: false,
Nullable: false,
TransferOwnership: gir.TransferOwnership{TransferOwnership:"none"},
AnyType: gir.AnyType{
Type: &gir.Type{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"type"},
Name: "VideoOverlay",
CType: "GstVideoOverlay*",
Introspectable: (*bool)(nil),
DocElements: gir.DocElements{},
Types: nil,
},
Array: (*gir.Array)(nil),
},
Doc: &gir.Doc{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"doc"},
Filename: "gst-libs/gst/video/videooverlay.c",
String: "a #GstVideoOverlay which got a window",
Line: 357,
},
},
},
Parameters: {
{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"parameter"},
ParameterAttrs: gir.ParameterAttrs{
Name: "handle",
Direction: "",
Scope: "",
Closure: (*int)(nil),
Destroy: (*int)(nil),
CallerAllocates: false,
Skip: false,
Optional: false,
Nullable: false,
TransferOwnership: gir.TransferOwnership{TransferOwnership:"none"},
AnyType: gir.AnyType{
Type: &gir.Type{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"type"},
Name: "guintptr",
CType: "guintptr",
Introspectable: (*bool)(nil),
DocElements: gir.DocElements{},
Types: nil,
},
Array: (*gir.Array)(nil),
},
Doc: &gir.Doc{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"doc"},
Filename: "gst-libs/gst/video/videooverlay.c",
String: "a platform-specific handle referencing the window",
Line: 358,
},
},
},
},
},
ReturnValue: &gir.ReturnValue{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"return-value"},
Scope: "",
Closure: (*int)(nil),
Destroy: (*int)(nil),
Introspectable: false,
Nullable: false,
Skip: false,
AllowNone: false,
TransferOwnership: gir.TransferOwnership{TransferOwnership:"none"},
DocElements: gir.DocElements{},
AnyType: gir.AnyType{
Type: &gir.Type{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"type"},
Name: "none",
CType: "void",
Introspectable: (*bool)(nil),
DocElements: gir.DocElements{},
Types: nil,
},
Array: (*gir.Array)(nil),
},
},
InfoAttrs: gir.InfoAttrs{},
InfoElements: gir.InfoElements{
DocElements: gir.DocElements{
Doc: &gir.Doc{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"doc"},
Filename: "gst-libs/gst/video/videooverlay.c",
String: "This will post a \"have-window-handle\" element message on the bus.\n\nThis function should only be used by video overlay plugin developers.",
Line: 355,
},
DocDeprecated: (*gir.DocDeprecated)(nil),
SourcePosition: &gir.SourcePosition{
XMLName: xml.Name{Space:"http://www.gtk.org/introspection/core/1.0", Local:"source-position"},
Filename: "gst-libs/gst/video/videooverlay.h",
Line: 98,
Column: 0,
},
},
Annotations: nil,
},
} |
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I'm thinking either the code generator is not capable (yet?) of properly handing You can also change the parameter to be a different (but equivalent) type that the generator can handle. Assuming the |
has anything changed about this in the past year? |
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Sorry, I've not been working on this until now. Could you try commit 541c72d? |
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So, I generated gstreamer bindings (outside of the nix environment, I havent been able to figure out how to install gstreamer there properly) and I'm trying to run approximately the same example i wrote with self written bindings, step by step.
There wasn't anything generated for gst_init, which needs to be called before using anything else from gstreamer, and once i built the first part of my example, which just calls self written bindings for gst_init and then uses the generated bindings to check if its initialized, i get these errors:
Here is the example:
The text was updated successfully, but these errors were encountered: