gf_isom_get_media_original_duration 1979 applications/mp4box/filedump.c 	fprintf(stderr, "Indicated Duration %s\n", format_duration(gf_isom_get_media_original_duration(file, trackNum), timescale, szDur));
gf_isom_get_media_original_duration  612 include/gpac/isomedia.h u64 gf_isom_get_media_original_duration(GF_ISOFile *movie, u32 trackNumber);