gf_isom_change_ismacryp_protection 4812 applications/mp4box/main.c 				e = gf_isom_change_ismacryp_protection(file, i+1, 1, NULL, (char *) tka->kms);
gf_isom_change_ismacryp_protection 2190 include/gpac/isomedia.h GF_Err gf_isom_change_ismacryp_protection(GF_ISOFile *the_file, u32 trackNumber, u32 StreamDescriptionIndex, char *scheme_uri, char *kms_uri);