gf_isom_set_track_switch_parameter 4545 applications/mp4box/main.c 			e = gf_isom_set_track_switch_parameter(file,
gf_isom_set_track_switch_parameter 2456 include/gpac/isomedia.h GF_Err gf_isom_set_track_switch_parameter(GF_ISOFile *movie, u32 trackNumber, u32 trackRefGroup, Bool is_switch_group, u32 *switchGroupID, u32 *criteriaList, u32 criteriaListCount);