gf_isom_update_stxt_description 1995 include/gpac/isomedia.h GF_Err gf_isom_update_stxt_description(GF_ISOFile *movie, u32 trackNumber, const char *encoding, const char *config, u32 DescriptionIndex);
gf_isom_update_stxt_description 1384 src/media_tools/text_import.c 		return gf_isom_update_stxt_description(flusher->import->dest, flusher->track, NULL, data, flusher->descriptionIndex);