gf_isom_use_compact_size 1180 include/gpac/isomedia.h GF_Err gf_isom_use_compact_size(GF_ISOFile *the_file, u32 trackNumber, u8 CompactionOn);
gf_isom_use_compact_size   82 src/scene_manager/encode_isom.c 			gf_isom_use_compact_size(mp4, track, 1);