unsafe extern "C" fn video_encoder_set_format<T: VideoEncoderImpl>(
ptr: *mut GstVideoEncoder,
state: *mut GstVideoCodecState,
) -> gboolean
unsafe extern "C" fn video_encoder_set_format<T: VideoEncoderImpl>(
ptr: *mut GstVideoEncoder,
state: *mut GstVideoCodecState,
) -> gboolean