flv_set_video_codec  602 libavformat/flvdec.c                         int ret = flv_set_video_codec(s, vstream, num_val, 0);
flv_set_video_codec 1213 libavformat/flvdec.c         int ret = flv_set_video_codec(s, st, flags & FLV_VIDEO_CODECID_MASK, 1);