gf_isom_begin_hint_sample 1604 include/gpac/isomedia.h GF_Err gf_isom_begin_hint_sample(GF_ISOFile *the_file, u32 trackNumber, u32 HintDescriptionIndex, u32 TransmissionTime);
gf_isom_begin_hint_sample  228 src/media_tools/isom_hinter.c 		gf_isom_begin_hint_sample(tkHint->file, tkHint->HintTrack, 1, header->TimeStamp-res);