static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom) { char tmp_key[5]; char key2[32], language[4] = {0}; char *str = NULL; const char *key = NULL; uint16_t langcode = 0; uint32_t data_type = 0, str_size, str_size_alloc; int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL; int raw = 0; int num = 0; switch (atom.type) { case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break; case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break; case MKTAG( 'X','M','P','_'): if (c->export_xmp) { key = "xmp"; raw = 1; } break; case MKTAG( 'a','A','R','T'): key = "album_artist"; break; case MKTAG( 'a','k','I','D'): key = "account_type"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'a','p','I','D'): key = "account_id"; break; case MKTAG( 'c','a','t','g'): key = "category"; break; case MKTAG( 'c','p','i','l'): key = "compilation"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'c','p','r','t'): key = "copyright"; break; case MKTAG( 'd','e','s','c'): key = "description"; break; case MKTAG( 'd','i','s','k'): key = "disc"; parse = mov_metadata_track_or_disc_number; break; case MKTAG( 'e','g','i','d'): key = "episode_uid"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'g','n','r','e'): key = "genre"; parse = mov_metadata_gnre; break; case MKTAG( 'h','d','v','d'): key = "hd_video"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'k','e','y','w'): key = "keywords"; break; case MKTAG( 'l','d','e','s'): key = "synopsis"; break; case MKTAG( 'l','o','c','i'): return mov_metadata_loci(c, pb, atom.size); case MKTAG( 'p','c','s','t'): key = "podcast"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'p','g','a','p'): key = "gapless_playback"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'p','u','r','d'): key = "purchase_date"; break; case MKTAG( 'r','t','n','g'): key = "rating"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break; case MKTAG( 's','o','a','l'): key = "sort_album"; break; case MKTAG( 's','o','a','r'): key = "sort_artist"; break; case MKTAG( 's','o','c','o'): key = "sort_composer"; break; case MKTAG( 's','o','n','m'): key = "sort_name"; break; case MKTAG( 's','o','s','n'): key = "sort_show"; break; case MKTAG( 's','t','i','k'): key = "media_type"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 't','r','k','n'): key = "track"; parse = mov_metadata_track_or_disc_number; break; case MKTAG( 't','v','e','n'): key = "episode_id"; break; case MKTAG( 't','v','e','s'): key = "episode_sort"; parse = mov_metadata_int8_bypass_padding; break; case MKTAG( 't','v','n','n'): key = "network"; break; case MKTAG( 't','v','s','h'): key = "show"; break; case MKTAG( 't','v','s','n'): key = "season_number"; parse = mov_metadata_int8_bypass_padding; break; case MKTAG(0xa9,'A','R','T'): key = "artist"; break; case MKTAG(0xa9,'P','R','D'): key = "producer"; break; case MKTAG(0xa9,'a','l','b'): key = "album"; break; case MKTAG(0xa9,'a','u','t'): key = "artist"; break; case MKTAG(0xa9,'c','h','p'): key = "chapter"; break; case MKTAG(0xa9,'c','m','t'): key = "comment"; break; case MKTAG(0xa9,'c','o','m'): key = "composer"; break; case MKTAG(0xa9,'c','p','y'): key = "copyright"; break; case MKTAG(0xa9,'d','a','y'): key = "date"; break; case MKTAG(0xa9,'d','i','r'): key = "director"; break; case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break; case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break; case MKTAG(0xa9,'e','n','c'): key = "encoder"; break; case MKTAG(0xa9,'f','m','t'): key = "original_format"; break; case MKTAG(0xa9,'g','e','n'): key = "genre"; break; case MKTAG(0xa9,'g','r','p'): key = "grouping"; break; case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break; case MKTAG(0xa9,'i','n','f'): key = "comment"; break; case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break; case MKTAG(0xa9,'m','a','k'): key = "make"; break; case MKTAG(0xa9,'m','o','d'): key = "model"; break; case MKTAG(0xa9,'n','a','m'): key = "title"; break; case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break; case MKTAG(0xa9,'p','r','d'): key = "producer"; break; case MKTAG(0xa9,'p','r','f'): key = "performers"; break; case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break; case MKTAG(0xa9,'s','r','c'): key = "original_source"; break; case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break; case MKTAG(0xa9,'s','w','r'): key = "encoder"; break; case MKTAG(0xa9,'t','o','o'): key = "encoder"; break; case MKTAG(0xa9,'t','r','k'): key = "track"; break; case MKTAG(0xa9,'u','r','l'): key = "URL"; break; case MKTAG(0xa9,'w','r','n'): key = "warning"; break; case MKTAG(0xa9,'w','r','t'): key = "composer"; break; case MKTAG(0xa9,'x','y','z'): key = "location"; break; } retry: if (c->itunes_metadata && atom.size > 8) { int data_size = avio_rb32(pb); int tag = avio_rl32(pb); if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) { data_type = avio_rb32(pb); // type avio_rb32(pb); // unknown str_size = data_size - 16; atom.size -= 16; if (atom.type == MKTAG('c', 'o', 'v', 'r')) { int ret = mov_read_covr(c, pb, data_type, str_size); if (ret < 0) { av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n"); } return ret; } else if (!key && c->found_hdlr_mdta && c->meta_keys) { uint32_t index = AV_RB32(&atom.type); if (index < c->meta_keys_count) { key = c->meta_keys[index]; } else { av_log(c->fc, AV_LOG_WARNING, "The index of 'data' is out of range: %d >= %d.\n", index, c->meta_keys_count); } } } else return 0; } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) { str_size = avio_rb16(pb); // string length if (str_size > atom.size) { raw = 1; avio_seek(pb, -2, SEEK_CUR); av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n"); goto retry; } langcode = avio_rb16(pb); ff_mov_lang_to_iso639(langcode, language); atom.size -= 4; } else str_size = atom.size; if (c->export_all && !key) { snprintf(tmp_key, 5, "%.4s", (char*)&atom.type); key = tmp_key; } if (!key) return 0; if (atom.size < 0 || str_size >= INT_MAX/2) return AVERROR_INVALIDDATA; // Allocates enough space if data_type is a float32 number, otherwise // worst-case requirement for output string in case of utf8 coded input num = (data_type == 23); str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1; str = av_mallocz(str_size_alloc); if (!str) return AVERROR(ENOMEM); if (parse) parse(c, pb, str_size, key); else { if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded mov_read_mac_string(c, pb, str_size, str, str_size_alloc); } else if (data_type == 23 && str_size >= 4) { // BE float32 float val = av_int2float(avio_rb32(pb)); if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) { av_log(c->fc, AV_LOG_ERROR, "Failed to store the float32 number (%f) in string.\n", val); return AVERROR_INVALIDDATA; } } else { int ret = ffio_read_size(pb, str, str_size); if (ret < 0) { return ret; } str[str_size] = 0; } c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED; av_dict_set(&c->fc->metadata, key, str, 0); if (*language && strcmp(language, "und")) { snprintf(key2, sizeof(key2), "%s-%s", key, language); av_dict_set(&c->fc->metadata, key2, str, 0); } } av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language); av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n", key, str, (char*)&atom.type, str_size_alloc, atom.size); av_freep(&str); return 0; }