gxf_write_track_description  369 libavformat/gxfenc.c         gxf_write_track_description(s, s->streams[i]->priv_data, i);
gxf_write_track_description  371 libavformat/gxfenc.c     gxf_write_track_description(s, &gxf->timecode_track, s->nb_streams);