예제 #1
0
bool TagReader::SaveSongStatisticsToFile(
    const QString& filename, const pb::tagreader::SongMetadata& song) const {
  if (filename.isNull()) return false;

  qLog(Debug) << "Saving song statistics tags to" << filename;

  std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));

  if (!fileref || fileref->isNull())  // The file probably doesn't exist
    return false;

  if (TagLib::MPEG::File* file =
          dynamic_cast<TagLib::MPEG::File*>(fileref->file())) {
    TagLib::ID3v2::Tag* tag = file->ID3v2Tag(true);

    // Save as FMPS
    SetUserTextFrame("FMPS_PlayCount", QString::number(song.playcount()), tag);
    SetUserTextFrame("FMPS_Rating_Amarok_Score",
                     QString::number(song.score() / 100.0), tag);

    // Also save as POPM
    TagLib::ID3v2::PopularimeterFrame* frame = GetPOPMFrameFromTag(tag);
    frame->setCounter(song.playcount());

  } else if (TagLib::FLAC::File* file =
                 dynamic_cast<TagLib::FLAC::File*>(fileref->file())) {
    TagLib::Ogg::XiphComment* vorbis_comments = file->xiphComment(true);
    SetFMPSStatisticsVorbisComments(vorbis_comments, song);
  } else if (TagLib::Ogg::XiphComment* tag =
                 dynamic_cast<TagLib::Ogg::XiphComment*>(
                     fileref->file()->tag())) {
    SetFMPSStatisticsVorbisComments(tag, song);
  }
#ifdef TAGLIB_WITH_ASF
  else if (TagLib::ASF::File* file =
               dynamic_cast<TagLib::ASF::File*>(fileref->file())) {
    TagLib::ASF::Tag* tag = file->tag();
    tag->addAttribute("FMPS/Playcount", NumberToASFAttribute(song.playcount()));
    tag->addAttribute("FMPS/Rating_Amarok_Score",
                      NumberToASFAttribute(song.score() / 100.0));
  }
#endif
  else if (TagLib::MP4::File* file =
               dynamic_cast<TagLib::MP4::File*>(fileref->file())) {
    TagLib::MP4::Tag* tag = file->tag();
    tag->itemListMap()[kMP4_FMPS_Score_ID] = TagLib::StringList(
        QStringToTaglibString(QString::number(song.score() / 100.0)));
    tag->itemListMap()[kMP4_FMPS_Playcount_ID] =
        TagLib::StringList(TagLib::String::number(song.playcount()));
  } else {
    // Nothing to save: stop now
    return true;
  }

  bool ret = fileref->save();
#ifdef Q_OS_LINUX
  if (ret) {
    // Linux: inotify doesn't seem to notice the change to the file unless we
    // change the timestamps as well. (this is what touch does)
    utimensat(0, QFile::encodeName(filename).constData(), nullptr, 0);
  }
#endif  // Q_OS_LINUX
  return ret;
}
bool
ID3v2TagHelper::setTags( const Meta::FieldHash &changes )
{
    bool modified = TagHelper::setTags( changes );

    foreach( const qint64 key, changes.keys() )
    {
        QVariant value = changes.value( key );
        TagLib::ByteVector field( fieldName( key ).toCString() );

        if( !field.isNull() && !field.isEmpty() )
        {
            if( key == Meta::valHasCover )
                continue;
            else if( key == Meta::valUniqueId )
            {
                QPair< UIDType, QString > uidPair = splitUID( value.toString() );
                if( uidPair.first == UIDInvalid )
                    continue;

                TagLib::String owner  = uidFieldName( uidPair.first );
                TagLib::ByteVector uid( uidPair.second.toAscii().data() );
                TagLib::ID3v2::FrameList list = m_tag->frameList();

                for( TagLib::ID3v2::FrameList::ConstIterator it = list.begin(); it != list.end(); ++it )
                {
                    if( ( *it )->frameID() == field )
                    {
                        TagLib::ID3v2::UniqueFileIdentifierFrame *frame =
                                dynamic_cast< TagLib::ID3v2::UniqueFileIdentifierFrame * >( *it );
                        if( !frame )
                            continue;

                        if( frame->owner() == owner )
                        {
                            m_tag->removeFrame( frame );
                            modified = true;
                            break;
                        }
                    }
                }

                if ( !uid.isEmpty() )
                {
                    m_tag->addFrame( new TagLib::ID3v2::UniqueFileIdentifierFrame( owner, uid ) );
                    modified = true;
                }
                continue;
            }

            TagLib::String tValue = Qt4QStringToTString( ( key == Meta::valCompilation )
                                                         ? QString::number( value.toInt() )
                                                         : value.toString() );
            if( tValue.isEmpty() )
                m_tag->removeFrames( field );
            else
            {
                TagLib::ID3v2::TextIdentificationFrame *frame = NULL;
                if( !m_tag->frameListMap()[field].isEmpty() )
                    frame = dynamic_cast< TagLib::ID3v2::TextIdentificationFrame * >(
                                                  m_tag->frameListMap()[field].front()
                                                                                    );
                if( !frame )
                {
                    frame = new TagLib::ID3v2::TextIdentificationFrame( field );
                    m_tag->addFrame( frame );
                }
                // note: TagLib is smart enough to automatically set UTF8 encoding if needed.
                frame->setText( tValue );
            }
            modified = true;
        }
        else if( key == Meta::valScore || key == Meta::valRating || key == Meta::valPlaycount )
        {
            TagLib::String description;
            TagLib::String tValue;

            if( key == Meta::valRating )
            {
                description = fmpsFieldName( FMPSRating );
                tValue = Qt4QStringToTString( QString::number( value.toFloat() / 10.0 ) );
            }
            else if( key == Meta::valScore )
            {
                description = fmpsFieldName( FMPSScore );
                tValue = Qt4QStringToTString( QString::number( value.toFloat() / 100.0 ) );
            }
            else if( key == Meta::valPlaycount )
            {
                description = fmpsFieldName( FMPSPlayCount );
                tValue = Qt4QStringToTString( QString::number( value.toInt() ) );
            }

            if( key == Meta::valRating || key == Meta::valPlaycount )
            {
                TagLib::ID3v2::PopularimeterFrame *popFrame = NULL;
                if( !m_tag->frameListMap()[POPM_Frame].isEmpty() )
                    popFrame = dynamic_cast< TagLib::ID3v2::PopularimeterFrame * >( m_tag->frameListMap()[POPM_Frame].front() );

                if( !popFrame )
                {
                    popFrame = new TagLib::ID3v2::PopularimeterFrame( POPM_Frame );
                    m_tag->addFrame( popFrame );
                }

                if( key == Meta::valRating )
                    popFrame->setRating( qBound(0, int(qRound(value.toDouble() / 10.0 * 256)), 255) );
                else
                    popFrame->setCounter( value.toInt() );

                modified = true;
            }

            TagLib::ID3v2::FrameList list = m_tag->frameList();
            for( TagLib::ID3v2::FrameList::ConstIterator it = list.begin(); it != list.end(); ++it )
            {
                if( ( *it )->frameID() == TXXX_Frame )
                {
                    TagLib::ID3v2::UserTextIdentificationFrame *frame =
                            dynamic_cast< TagLib::ID3v2::UserTextIdentificationFrame * >( *it );
                    if( !frame )
                        continue;

                    if( frame->description() == description )
                    {
                        m_tag->removeFrame( frame );
                        modified = true;
                        break;
                    }
                }
            }

            if( value.toBool() )
            {
                TagLib::ID3v2::UserTextIdentificationFrame *frame =
                        new TagLib::ID3v2::UserTextIdentificationFrame( TXXX_Frame );

                frame->setDescription( description );
                frame->setText( tValue );
                m_tag->addFrame( frame );
                modified = true;
            }
        }
    }

    return modified;
}