GetESD           3233 include/gpac/internal/isomedia_dev.h GF_Err GetESD(GF_MovieBox *moov, u32 trackID, u32 StreamDescIndex, GF_ESD **outESD);
GetESD           1086 src/isomedia/isom_read.c 	e = GetESD(movie->moov, gf_isom_get_track_id(movie, trackNumber), StreamDescriptionIndex, &esd);
GetESD            327 src/isomedia/track.c 	return GetESD(moov, trackID, sampleDescIndex, outESD);