gf_isom_get_adobe_protection_info 2467 applications/mp4box/filedump.c 					gf_isom_get_adobe_protection_info(file, trackNum, 1, NULL, &scheme_type, &version);
gf_isom_get_adobe_protection_info 2217 include/gpac/isomedia.h GF_Err gf_isom_get_adobe_protection_info(GF_ISOFile *the_file, u32 trackNumber, u32 sampleDescriptionIndex, u32 *outOriginalFormat, u32 *outSchemeType, u32 *outSchemeVersion);