static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom) { char tmp_key[5]; char str[1024], key2[32], language[4] = {0}; const char *key = NULL; uint16_t langcode = 0; uint32_t data_type = 0, str_size; int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL; switch (atom.type) { case MKTAG(0xa9,'n','a','m'): key = "title"; break; case MKTAG(0xa9,'a','u','t'): case MKTAG(0xa9,'A','R','T'): key = "artist"; break; case MKTAG( 'a','A','R','T'): key = "album_artist"; break; case MKTAG(0xa9,'w','r','t'): key = "composer"; break; case MKTAG( 'c','p','r','t'): case MKTAG(0xa9,'c','p','y'): key = "copyright"; break; case MKTAG(0xa9,'c','m','t'): case MKTAG(0xa9,'i','n','f'): key = "comment"; break; case MKTAG(0xa9,'a','l','b'): key = "album"; break; case MKTAG(0xa9,'d','a','y'): key = "date"; break; case MKTAG(0xa9,'g','e','n'): key = "genre"; break; case MKTAG( 'g','n','r','e'): key = "genre"; parse = mov_metadata_gnre; break; case MKTAG(0xa9,'t','o','o'): case MKTAG(0xa9,'s','w','r'): key = "encoder"; break; case MKTAG(0xa9,'e','n','c'): key = "encoder"; break; case MKTAG(0xa9,'x','y','z'): key = "location"; break; case MKTAG( 'd','e','s','c'): key = "description";break; case MKTAG( 'l','d','e','s'): key = "synopsis"; break; case MKTAG( 't','v','s','h'): key = "show"; break; case MKTAG( 't','v','e','n'): key = "episode_id";break; case MKTAG( 't','v','n','n'): key = "network"; break; case MKTAG( 't','r','k','n'): key = "track"; parse = mov_metadata_track_or_disc_number; break; case MKTAG( 'd','i','s','k'): key = "disc"; parse = mov_metadata_track_or_disc_number; break; case MKTAG( 't','v','e','s'): key = "episode_sort"; parse = mov_metadata_int8_bypass_padding; break; case MKTAG( 't','v','s','n'): key = "season_number"; parse = mov_metadata_int8_bypass_padding; break; case MKTAG( 's','t','i','k'): key = "media_type"; parse = mov_metadata_int8_no_padding; break; case MKTAG( 'h','d','v','d'): key = "hd_video"; 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( 'l','o','c','i'): return mov_metadata_loci(c, pb, atom.size); } 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_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 return 0; } else if (atom.size > 4 && key && !c->itunes_metadata) { str_size = avio_rb16(pb); // string length 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) return AVERROR_INVALIDDATA; str_size = FFMIN3(sizeof(str)-1, str_size, atom.size); if (parse) parse(c, pb, str_size, key); else { if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded mov_read_mac_string(c, pb, str_size, str, sizeof(str)); } else { avio_read(pb, str, str_size); 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_dlog(c->fc, "lang \"%3s\" ", language); av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n", key, str, (char*)&atom.type, str_size, atom.size); return 0; }