示例#1
0
void TagLibExtractor::extract(ExtractionResult* result)
{
    const QString fileUrl = result->inputUrl();
    const QString mimeType = result->inputMimetype();

    TagLib::FileRef file(fileUrl.toUtf8().constData(), true);
    if (file.isNull()) {
        return;
    }

    TagLib::Tag* tags = file.tag();
    result->addType(Type::Audio);

    TagLib::String artists;
    TagLib::String albumArtists;
    TagLib::String composers;
    TagLib::String lyricists;
    TagLib::StringList genres;

    // Handling multiple tags in mpeg files.
    if ((mimeType == QLatin1String("audio/mpeg")) || (mimeType == QLatin1String("audio/mpeg3")) || (mimeType == QLatin1String("audio/x-mpeg"))) {
        TagLib::MPEG::File mpegFile(fileUrl.toUtf8().constData(), true);
        if (mpegFile.ID3v2Tag() && !mpegFile.ID3v2Tag()->isEmpty()) {
            TagLib::ID3v2::FrameList lstID3v2;

            // Artist.
            lstID3v2 = mpegFile.ID3v2Tag()->frameListMap()["TPE1"];
            if (!lstID3v2.isEmpty()) {
                for (TagLib::ID3v2::FrameList::ConstIterator it = lstID3v2.begin(); it != lstID3v2.end(); ++it) {
                    if (!artists.isEmpty()) {
                        artists += ", ";
                    }
                    artists += (*it)->toString();
                }
            }

            // Album Artist.
            lstID3v2 = mpegFile.ID3v2Tag()->frameListMap()["TPE2"];
            if (!lstID3v2.isEmpty()) {
                for (TagLib::ID3v2::FrameList::ConstIterator it = lstID3v2.begin(); it != lstID3v2.end(); ++it) {
                    if (!albumArtists.isEmpty()) {
                        albumArtists += ", ";
                    }
                    albumArtists += (*it)->toString();
                }
            }

            // Composer.
            lstID3v2 = mpegFile.ID3v2Tag()->frameListMap()["TCOM"];
            if (!lstID3v2.isEmpty()) {
                for (TagLib::ID3v2::FrameList::ConstIterator it = lstID3v2.begin(); it != lstID3v2.end(); ++it) {
                    if (!composers.isEmpty()) {
                        composers += ", ";
                    }
                    composers += (*it)->toString();
                }
            }

            // Lyricist.
            lstID3v2 = mpegFile.ID3v2Tag()->frameListMap()["TEXT"];
            if (!lstID3v2.isEmpty()) {
                for (TagLib::ID3v2::FrameList::ConstIterator it = lstID3v2.begin(); it != lstID3v2.end(); ++it) {
                    if (!lyricists.isEmpty()) {
                        lyricists += ", ";
                    }
                    lyricists += (*it)->toString();
                }
            }

            // Genre.
            lstID3v2 = mpegFile.ID3v2Tag()->frameListMap()["TCON"];
            if (!lstID3v2.isEmpty()) {
                for (TagLib::ID3v2::FrameList::ConstIterator it = lstID3v2.begin(); it != lstID3v2.end(); ++it) {
                    genres.append((*it)->toString());
                }
            }

        }
    }

    // Handling multiple tags in Ogg containers.
    {
        TagLib::Ogg::FieldListMap lstOgg;

        // FLAC files.
        if (mimeType == QLatin1String("audio/flac")) {
            TagLib::FLAC::File flacFile(fileUrl.toUtf8().constData(), true);
            if (flacFile.xiphComment() && !flacFile.xiphComment()->isEmpty()) {
                lstOgg = flacFile.xiphComment()->fieldListMap();
            }
        }

        // Vorbis files.
        if (mimeType == QLatin1String("audio/ogg") || mimeType == QLatin1String("audio/x-vorbis+ogg")) {
            TagLib::Ogg::Vorbis::File oggFile(fileUrl.toUtf8().constData(), true);
            if (oggFile.tag() && !oggFile.tag()->isEmpty()) {
                lstOgg = oggFile.tag()->fieldListMap();
            }
        }

        // Opus files.
        if (mimeType == QLatin1String("audio/opus") || mimeType == QLatin1String("audio/x-opus+ogg")) {
            TagLib::Ogg::Opus::File opusFile(fileUrl.toUtf8().constData(), true);
            if (opusFile.tag() && !opusFile.tag()->isEmpty()) {
                lstOgg = opusFile.tag()->fieldListMap();
            }
        }

        // Handling OGG container tags.
        if (!lstOgg.isEmpty()) {
            TagLib::Ogg::FieldListMap::ConstIterator itOgg;

            // Artist.
            itOgg = lstOgg.find("ARTIST");
            if (itOgg != lstOgg.end()) {
                if (!artists.isEmpty()) {
                    artists += ", ";
                }
                artists += (*itOgg).second.toString(", ");
            }

            // Album Artist.
            itOgg = lstOgg.find("ALBUMARTIST");
            if (itOgg != lstOgg.end()) {
                if (!albumArtists.isEmpty()) {
                    albumArtists += ", ";
                }
                albumArtists += (*itOgg).second.toString(", ");
            }

            // Composer.
            itOgg = lstOgg.find("COMPOSER");
            if (itOgg != lstOgg.end()) {
                if (!composers.isEmpty()) {
                    composers += ", ";
                }
                composers += (*itOgg).second.toString(", ");
            }

            // Lyricist.
            itOgg = lstOgg.find("LYRICIST");
            if (itOgg != lstOgg.end()) {
                if (!lyricists.isEmpty()) {
                    lyricists += ", ";
                }
                lyricists += (*itOgg).second.toString(", ");
            }

            // Genre.
            itOgg = lstOgg.find("GENRE");
            if (itOgg != lstOgg.end()) {
                genres.append((*itOgg).second);
            }
        }
    }

    // Handling multiple tags in Musepack files.
    if (mimeType == QLatin1String("audio/x-musepack")) {
        TagLib::MPC::File mpcFile(fileUrl.toUtf8().constData(), true);
        if (mpcFile.tag() && !mpcFile.tag()->isEmpty()) {
            TagLib::APE::ItemListMap lstMusepack = mpcFile.APETag()->itemListMap();
            TagLib::APE::ItemListMap::ConstIterator itMPC;

            // Artist.
            itMPC = lstMusepack.find("ARTIST");
            if (itMPC != lstMusepack.end()) {
                if (!artists.isEmpty()) {
                    artists += ", ";
                }
                artists += (*itMPC).second.toString();
            }

            // Album Artist.
            itMPC = lstMusepack.find("ALBUMARTIST");
            if (itMPC != lstMusepack.end()) {
                if(!albumArtists.isEmpty()) {
                    albumArtists += ", ";
                }
                albumArtists += (*itMPC).second.toString();
            }

            // Composer.
            itMPC = lstMusepack.find("COMPOSER");
            if (itMPC != lstMusepack.end()) {
                if (!composers.isEmpty()) {
                    composers += ", ";
                }
                composers += (*itMPC).second.toString();
            }

            // Lyricist.
            itMPC = lstMusepack.find("LYRICIST");
            if (itMPC != lstMusepack.end()) {
                if (!lyricists.isEmpty()) {
                    lyricists += ", ";
                }
                lyricists += (*itMPC).second.toString();
            }

            // Genre.
            itMPC = lstMusepack.find("GENRE");
            if (itMPC != lstMusepack.end()) {
                genres.append((*itMPC).second.toString());
            }
        }
    }

    if (!tags->isEmpty()) {
        QString title = t2q(tags->title());
        if (!title.isEmpty()) {
            result->add(Property::Title, title);
        }

        QString comment = t2q(tags->comment());
        if (!comment.isEmpty()) {
            result->add(Property::Comment, comment);
        }

        if (genres.isEmpty()) {
            genres.append(tags->genre());
        }

        for (uint i = 0; i < genres.size(); i++) {
            QString genre = t2q(genres[i]).trimmed();

            // Convert from int
            bool ok = false;
            int genreNum = genre.toInt(&ok);
            if (ok) {
                genre = t2q(TagLib::ID3v1::genre(genreNum));
            }

            result->add(Property::Genre, genre);
        }

        QString artistString;
        if (artists.isEmpty()) {
            artistString = t2q(tags->artist());
        } else {
            artistString = t2q(artists).trimmed();
        }

        QStringList artists = contactsFromString(artistString);
        foreach(const QString& artist, artists) {
            result->add(Property::Artist, artist);
        }
示例#2
0
QByteArray TagReader::LoadEmbeddedArt(const QString& filename) const {
  if (filename.isEmpty()) return QByteArray();

  qLog(Debug) << "Loading art from" << filename;

#ifdef Q_OS_WIN32
  TagLib::FileRef ref(filename.toStdWString().c_str());
#else
  TagLib::FileRef ref(QFile::encodeName(filename).constData());
#endif

  if (ref.isNull() || !ref.file()) return QByteArray();

  // MP3
  TagLib::MPEG::File* file = dynamic_cast<TagLib::MPEG::File*>(ref.file());
  if (file && file->ID3v2Tag()) {
    TagLib::ID3v2::FrameList apic_frames =
        file->ID3v2Tag()->frameListMap()["APIC"];
    if (apic_frames.isEmpty()) return QByteArray();

    TagLib::ID3v2::AttachedPictureFrame* pic =
        static_cast<TagLib::ID3v2::AttachedPictureFrame*>(apic_frames.front());

    return QByteArray((const char*)pic->picture().data(),
                      pic->picture().size());
  }

  // Ogg vorbis/speex
  TagLib::Ogg::XiphComment* xiph_comment =
      dynamic_cast<TagLib::Ogg::XiphComment*>(ref.file()->tag());

  if (xiph_comment) {
    TagLib::Ogg::FieldListMap map = xiph_comment->fieldListMap();

    // Other than the below mentioned non-standard COVERART,
    // METADATA_BLOCK_PICTURE
    // is the proposed tag for cover pictures.
    // (see http://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE)
    if (map.contains("METADATA_BLOCK_PICTURE")) {
      TagLib::StringList pict_list = map["METADATA_BLOCK_PICTURE"];
      for (std::list<TagLib::String>::iterator it = pict_list.begin();
           it != pict_list.end(); ++it) {
        QByteArray data(QByteArray::fromBase64(it->toCString()));
        TagLib::ByteVector tdata(data.data(), data.size());
        TagLib::FLAC::Picture p(tdata);
        if (p.type() == TagLib::FLAC::Picture::FrontCover)
          return QByteArray(p.data().data(), p.data().size());
      }
      // If there was no specific front cover, just take the first picture
      QByteArray data(QByteArray::fromBase64(
          map["METADATA_BLOCK_PICTURE"].front().toCString()));
      TagLib::ByteVector tdata(data.data(), data.size());
      TagLib::FLAC::Picture p(tdata);
      return QByteArray(p.data().data(), p.data().size());
    }

    // Ogg lacks a definitive standard for embedding cover art, but it seems
    // b64 encoding a field called COVERART is the general convention
    if (!map.contains("COVERART")) return QByteArray();

    return QByteArray::fromBase64(map["COVERART"].toString().toCString());
  }

#ifdef TAGLIB_HAS_FLAC_PICTURELIST
  // Flac
  TagLib::FLAC::File* flac_file = dynamic_cast<TagLib::FLAC::File*>(ref.file());
  if (flac_file && flac_file->xiphComment()) {
    TagLib::List<TagLib::FLAC::Picture*> pics = flac_file->pictureList();
    if (!pics.isEmpty()) {
      // Use the first picture in the file - this could be made cleverer and
      // pick the front cover if it's present.

      std::list<TagLib::FLAC::Picture*>::iterator it = pics.begin();
      TagLib::FLAC::Picture* picture = *it;

      return QByteArray(picture->data().data(), picture->data().size());
    }
  }
#endif

  // MP4/AAC
  TagLib::MP4::File* aac_file = dynamic_cast<TagLib::MP4::File*>(ref.file());
  if (aac_file) {
    TagLib::MP4::Tag* tag = aac_file->tag();
    const TagLib::MP4::ItemListMap& items = tag->itemListMap();
    TagLib::MP4::ItemListMap::ConstIterator it = items.find("covr");
    if (it != items.end()) {
      const TagLib::MP4::CoverArtList& art_list = it->second.toCoverArtList();

      if (!art_list.isEmpty()) {
        // Just take the first one for now
        const TagLib::MP4::CoverArt& art = art_list.front();
        return QByteArray(art.data().data(), art.data().size());
      }
    }
  }

  return QByteArray();
}
示例#3
0
int main(int argc, char *argv[])
{
  for(int i = 1; i < argc; i++) {

    cout << "******************** \"" << argv[i] << "\" ********************" << endl;

    TagLib::FileRef f(argv[i]);

    if(!f.isNull() && f.tag()) {

      TagLib::Tag *tag = f.tag();

      cout << "-- TAG --" << endl;
      cout << "title        - \"" << tag->title()   << "\"" << endl;
      cout << "artist       - \"" << tag->artist()  << "\"" << endl;
      cout << "album artist - \"" << tag->albumArtist()   << "\"" << endl;
      cout << "album        - \"" << tag->album()   << "\"" << endl;
      cout << "year         - \"" << tag->year()    << "\"" << endl;
      cout << "comment      - \"" << tag->comment() << "\"" << endl;
      cout << "track        - \"" << tag->track()   << "\"" << endl;
      cout << "genre        - \"" << tag->genre()   << "\"" << endl;
      cout << "grouping     - \"" << tag->grouping()   << "\"" << endl;
      TagLib::Ogg::XiphComment *comment = NULL;
      TagLib::FLAC::File *flac = dynamic_cast<TagLib::FLAC::File *>(f.file());
      if (flac) {
        cout << "flac:" << endl;
        cout << "id3v1   - \"" << flac->ID3v1Tag()   << "\"" << endl;
        cout << "id3v2   - \"" << flac->ID3v2Tag()   << "\"" << endl;
        cout << "xiph    - \"" << flac->xiphComment()   << "\"" << endl;
        comment = flac->xiphComment();
      }
      if (!comment) {
        comment = dynamic_cast<TagLib::Ogg::XiphComment *>(tag);
      }
      if (comment) {
        TagLib::Ogg::FieldListMap fields = comment->fieldListMap();
        for(TagLib::Ogg::FieldListMap::ConstIterator it = fields.begin(), end = fields.end(); it != end; it++) {
          if (!it->second.isEmpty())
            cout << "xiph:" << it->first << " \"" << it->second[0].substr(0,3) << "\"" << endl;
        }
      }
      cout << "pictures- \"" << f.file()->pictures().size()   << "\"" << endl;
      TagLib::File::PictureList l = f.file()->pictures();
      for (TagLib::File::_PictureList::ConstIterator i = l.begin(), end = l.end(); i != end; i++) {
        cout << "\t" << (*i)->typeName() << ' ' << (*i)->mimeType() << ' ' << (*i)->base64data().size() << endl;
      }
      
      cout << "pictures- \"" << tag->pictures().size()   << "\"" << endl;
    }

    if(!f.isNull() && f.audioProperties()) {

      TagLib::AudioProperties *properties = f.audioProperties();

      int seconds = properties->length() % 60;
      int minutes = (properties->length() - seconds) / 60;

      cout << "-- AUDIO --" << endl;
      cout << "bitrate     - " << properties->bitrate() << endl;
      cout << "sample rate - " << properties->sampleRate() << endl;
      cout << "channels    - " << properties->channels() << endl;
      cout << "length      - " << minutes << ":" << formatSeconds(seconds) << endl;
    }
  }
  return 0;
}