gf_isom_get_original_format_type 2161 include/gpac/isomedia.h GF_Err gf_isom_get_original_format_type(GF_ISOFile *the_file, u32 trackNumber, u32 sampleDescriptionIndex, u32 *outOriginalFormat);
gf_isom_get_original_format_type  429 src/media_tools/dash_segmenter.c 			e = gf_isom_get_original_format_type(movie, track, 1, &originalFormat);