Static$gtypeGets private data set on the frame by the subclass via
gst_video_codec_frame_set_user_data() previously.
The previously set user_data
Sets user_data on the frame and the GLib.DestroyNotify that will be called when
the frame is freed. Allows to attach private data by the subclass to frames.
If a user_data was previously set, then the previous set notify will be called
before the user_data is replaced.
Optionaluser_data: anyprivate data
Decreases the refcount of the frame. If the refcount reaches 0, the frame will be freed.
A GstVideo.VideoCodecFrame represents a video frame both in raw and encoded form.