macos don't apply pix_fmt for files

FIXME: Perhaps this was only needed for screenshare?

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = pylivestream
-version = 1.11.2
+version = 1.11.3
 author = Michael Hirsch, Ph.D.
 author_email = [email protected]
 description = Livestream using FFmpeg to YouTube Live, Periscope, Facebook Live, Twitch, and many more

src/pylivestream/stream.py

@@ -135,16 +135,19 @@ def videoIn(self, quick: bool = False) -> List[str]:
 
         if self.vidsource == "screen":
             v = self.screengrab(quick)
+            if sys.platform == "darwin":
+                # not for files "option pixel_format not found"
+                v = ["-pix_fmt", "uyvy422"] + v
         elif self.vidsource == "camera":
             v = self.webcam(quick)
+            if sys.platform == "darwin":
+                # not for files "option pixel_format not found"
+                v = ["-pix_fmt", "uyvy422"] + v
         elif self.vidsource is None or self.vidsource == "file":
             v = self.filein(quick)
         else:
             raise ValueError(f"unknown vidsource {self.vidsource}")
 
-        if sys.platform == "darwin":
-            v = ["-pix_fmt", "uyvy422"] + v
-
         return v
 
     def videoOut(self) -> List[str]: