pub unsafe extern "C" fn gst_video_decoder_request_sync_point(
dec: *mut GstVideoDecoder,
frame: *mut GstVideoCodecFrame,
flags: GstVideoDecoderRequestSyncPointFlags
)pub unsafe extern "C" fn gst_video_decoder_request_sync_point(
dec: *mut GstVideoDecoder,
frame: *mut GstVideoCodecFrame,
flags: GstVideoDecoderRequestSyncPointFlags
)