C++ music_info::CMusicInfoTag类代码示例

void CScrobbler::AddSong(const MUSIC_INFO::CMusicInfoTag &tag, bool lastfmradio)
{
    ClearSubmissionState();

    if (!CanScrobble() || !tag.Loaded())
        return;

    if (tag.GetArtist().empty() || tag.GetTitle().IsEmpty())
        return;

    // our tags are stored as UTF-8, so no conversion needed
    m_CurrentTrack.length           = tag.GetDuration();
    m_CurrentTrack.strArtist        = StringUtils::Join(tag.GetArtist(), g_advancedSettings.m_musicItemSeparator);
    m_CurrentTrack.strAlbum         = tag.GetAlbum();
    m_CurrentTrack.strTitle         = tag.GetTitle();
    m_CurrentTrack.strMusicBrainzID = tag.GetMusicBrainzTrackID();
    if (lastfmradio)  // TODO Set source more appropriately
        m_CurrentTrack.strSource        = "L" + tag.GetComment();
    else
        m_CurrentTrack.strSource        = "P";
    m_CurrentTrack.strRating        = "";
    m_CurrentTrack.strLength.Format("%d", m_CurrentTrack.length);
    m_CurrentTrack.strStartTime.Format("%d", time(NULL));
    m_CurrentTrack.strTrackNum.Format("%d",tag.GetTrackNumber());

    CURL::Encode(m_CurrentTrack.strArtist);
    CURL::Encode(m_CurrentTrack.strTitle);
    CURL::Encode(m_CurrentTrack.strAlbum);
    CURL::Encode(m_CurrentTrack.strMusicBrainzID);

    m_bNotified = false;
    m_bSubmitted = !((lastfmradio && g_guiSettings.GetBool("scrobbler.lastfmsubmitradio")) ||
                     (!lastfmradio && g_guiSettings.GetBool("scrobbler.lastfmsubmit") && (m_CurrentTrack.length > SCROBBLER_MIN_DURATION || !m_CurrentTrack.strMusicBrainzID.IsEmpty())));
}

void CAirTunesServer::SetMetadataFromBuffer(const char *buffer, unsigned int size)
{
  MUSIC_INFO::CMusicInfoTag tag;
  std::map<std::string, std::string> metadata = decodeDMAP(buffer, size);
  if(metadata["asal"].length())
    tag.SetAlbum(metadata["asal"]);//album
  if(metadata["minm"].length())    
    tag.SetTitle(metadata["minm"]);//title
  if(metadata["asar"].length())    
    tag.SetArtist(metadata["asar"]);//artist
  CApplicationMessenger::Get().SetCurrentSongTag(tag);
}

void CAirTunesServer::RefreshMetadata()
{
  CSingleLock lock(m_metadataLock);
  MUSIC_INFO::CMusicInfoTag tag;
  if (m_metadata[0].length())
    tag.SetAlbum(m_metadata[0]);//album
  if (m_metadata[1].length())
    tag.SetTitle(m_metadata[1]);//title
  if (m_metadata[2].length())
    tag.SetArtist(m_metadata[2]);//artist
  
  CApplicationMessenger::Get().SetCurrentSongTag(tag);
}

void CAirTunesServer::RefreshMetadata()
{
  CSingleLock lock(m_metadataLock);
  MUSIC_INFO::CMusicInfoTag tag;
  if (g_infoManager.GetCurrentSongTag())
    tag = *g_infoManager.GetCurrentSongTag();
  if (m_metadata[0].length())
    tag.SetAlbum(m_metadata[0]);//album
  if (m_metadata[1].length())
    tag.SetTitle(m_metadata[1]);//title
  if (m_metadata[2].length())
    tag.SetArtist(m_metadata[2]);//artist
  
  CApplicationMessenger::GetInstance().PostMsg(TMSG_UPDATE_CURRENT_ITEM, 1, -1, static_cast<void*>(new CFileItem(tag)));
}

bool CAudioDecoder::Load(const std::string& fileName,
                         MUSIC_INFO::CMusicInfoTag& tag,
                         MUSIC_INFO::EmbeddedArt* art)
{
  if (!Initialized())
    return false;

  char title[256];
  char artist[256];
  int length;
  if (m_pStruct->ReadTag(fileName.c_str(), title, artist, &length))
  {
    tag.SetTitle(title);
    tag.SetArtist(artist);
    tag.SetDuration(length);
    return true;
  }

  return false;
}

CStdString CCDDARipper::GetAlbumDirName(const MUSIC_INFO::CMusicInfoTag& infoTag)
{
  CStdString strAlbumDir;

  // use audiocds.trackpathformat setting to format
  // directory name where CD tracks will be stored,
  // use only format part ending at the last '/'
  strAlbumDir = CSettings::Get().GetString("audiocds.trackpathformat");
  int pos = max(strAlbumDir.ReverseFind('/'), strAlbumDir.ReverseFind('\\'));
  if (pos < 0)
    return ""; // no directory
  
  strAlbumDir = strAlbumDir.Left(pos);

  // replace %A with album artist name
  if (strAlbumDir.Find("%A") != -1)
  {
    CStdString strAlbumArtist = StringUtils::Join(infoTag.GetAlbumArtist(), g_advancedSettings.m_musicItemSeparator);
    if (strAlbumArtist.IsEmpty())
      strAlbumArtist = StringUtils::Join(infoTag.GetArtist(), g_advancedSettings.m_musicItemSeparator);
    if (strAlbumArtist.IsEmpty())
      strAlbumArtist = "Unknown Artist";
    else
      strAlbumArtist.Replace('/', '_');
    strAlbumDir.Replace("%A", strAlbumArtist);
  }

  // replace %B with album title
  if (strAlbumDir.Find("%B") != -1)
  {
    CStdString strAlbum = infoTag.GetAlbum();
    if (strAlbum.IsEmpty()) 
      strAlbum.Format("Unknown Album %s", CDateTime::GetCurrentDateTime().GetAsLocalizedDateTime().c_str());
    else
      strAlbum.Replace('/', '_');
    strAlbumDir.Replace("%B", strAlbum);
  }

  // replace %G with genre
  if (strAlbumDir.Find("%G") != -1)
  {
    CStdString strGenre = StringUtils::Join(infoTag.GetGenre(), g_advancedSettings.m_musicItemSeparator);
    if (strGenre.IsEmpty())
      strGenre = "Unknown Genre";
    else
      strGenre.Replace('/', '_');
    strAlbumDir.Replace("%G", strGenre);
  }

  // replace %Y with year
  if (strAlbumDir.Find("%Y") != -1)
  {
    CStdString strYear = infoTag.GetYearString();
    if (strYear.IsEmpty())
      strYear = "Unknown Year";
    else
      strYear.Replace('/', '_');
    strAlbumDir.Replace("%Y", strYear);
  }

  return strAlbumDir;
}

bool CTagLoaderTagLib::ParseTag(ID3v2::Tag *id3v2, MUSIC_INFO::EmbeddedArt *art, MUSIC_INFO::CMusicInfoTag& tag)
{
  if (!id3v2) return false;
  ReplayGain replayGainInfo;

  ID3v2::AttachedPictureFrame *pictures[3] = {};
  const ID3v2::FrameListMap& frameListMap = id3v2->frameListMap();
  for (ID3v2::FrameListMap::ConstIterator it = frameListMap.begin(); it != frameListMap.end(); ++it)
  {
    // It is possible that the taglist is empty. In that case no useable values can be extracted.
    // and we should skip the tag.
    if (it->second.isEmpty()) continue;

    if      (it->first == "TPE1")   SetArtist(tag, GetID3v2StringList(it->second));
    else if (it->first == "TALB")   tag.SetAlbum(it->second.front()->toString().to8Bit(true));
    else if (it->first == "TPE2")   SetAlbumArtist(tag, GetID3v2StringList(it->second));
    else if (it->first == "TIT2")   tag.SetTitle(it->second.front()->toString().to8Bit(true));
    else if (it->first == "TCON")   SetGenre(tag, GetID3v2StringList(it->second));
    else if (it->first == "TRCK")   tag.SetTrackNumber(strtol(it->second.front()->toString().toCString(true), NULL, 10));
    else if (it->first == "TPOS")   tag.SetDiscNumber(strtol(it->second.front()->toString().toCString(true), NULL, 10));
    else if (it->first == "TYER")   tag.SetYear(strtol(it->second.front()->toString().toCString(true), NULL, 10));
    else if (it->first == "TCMP")   tag.SetCompilation((strtol(it->second.front()->toString().toCString(true), NULL, 10) == 0) ? false : true);
    else if (it->first == "TENC")   {} // EncodedBy
    else if (it->first == "TCOP")   {} // Copyright message
    else if (it->first == "TDRC")   tag.SetYear(strtol(it->second.front()->toString().toCString(true), NULL, 10));
    else if (it->first == "TDRL")   tag.SetYear(strtol(it->second.front()->toString().toCString(true), NULL, 10));
    else if (it->first == "TDTG")   {} // Tagging time
    else if (it->first == "TLAN")   {} // Languages
    else if (it->first == "TMOO")   tag.SetMood(it->second.front()->toString().to8Bit(true));
    else if (it->first == "USLT")
      // Loop through any lyrics frames. Could there be multiple frames, how to choose?
      for (ID3v2::FrameList::ConstIterator lt = it->second.begin(); lt != it->second.end(); ++lt)
      {
        ID3v2::UnsynchronizedLyricsFrame *lyricsFrame = dynamic_cast<ID3v2::UnsynchronizedLyricsFrame *> (*lt);
        if (lyricsFrame)
          tag.SetLyrics(lyricsFrame->text().to8Bit(true));
      }
    else if (it->first == "COMM")
      // Loop through and look for the main (no description) comment
      for (ID3v2::FrameList::ConstIterator ct = it->second.begin(); ct != it->second.end(); ++ct)
      {
        ID3v2::CommentsFrame *commentsFrame = dynamic_cast<ID3v2::CommentsFrame *> (*ct);
        if (commentsFrame && commentsFrame->description().isEmpty())
          tag.SetComment(commentsFrame->text().to8Bit(true));
      }
    else if (it->first == "TXXX")
      // Loop through and process the UserTextIdentificationFrames
      for (ID3v2::FrameList::ConstIterator ut = it->second.begin(); ut != it->second.end(); ++ut)
      {
        ID3v2::UserTextIdentificationFrame *frame = dynamic_cast<ID3v2::UserTextIdentificationFrame *> (*ut);
        if (!frame) continue;

        // First field is the same as the description
        StringList stringList = frame->fieldList();
        if (stringList.size() == 1) continue;
        stringList.erase(stringList.begin());
        String desc = frame->description().upper();
        if      (desc == "MUSICBRAINZ ARTIST ID")
          tag.SetMusicBrainzArtistID(SplitMBID(StringListToVectorString(stringList)));
        else if (desc == "MUSICBRAINZ ALBUM ID")
          tag.SetMusicBrainzAlbumID(stringList.front().to8Bit(true));
        else if (desc == "MUSICBRAINZ ALBUM ARTIST ID")
          tag.SetMusicBrainzAlbumArtistID(SplitMBID(StringListToVectorString(stringList)));
        else if (desc == "MUSICBRAINZ ALBUM ARTIST")
          SetAlbumArtist(tag, StringListToVectorString(stringList));
        else if (desc == "REPLAYGAIN_TRACK_GAIN")
          replayGainInfo.ParseGain(ReplayGain::TRACK, stringList.front().toCString(true));
        else if (desc == "REPLAYGAIN_ALBUM_GAIN")
          replayGainInfo.ParseGain(ReplayGain::ALBUM, stringList.front().toCString(true));
        else if (desc == "REPLAYGAIN_TRACK_PEAK")
          replayGainInfo.ParsePeak(ReplayGain::TRACK, stringList.front().toCString(true));
        else if (desc == "REPLAYGAIN_ALBUM_PEAK")
          replayGainInfo.ParsePeak(ReplayGain::ALBUM, stringList.front().toCString(true));
        else if (desc == "ALBUMARTIST" || desc == "ALBUM ARTIST")
          SetAlbumArtist(tag, StringListToVectorString(stringList));
        else if (desc == "ARTISTS")
        {
          if (id3v2->header()->majorVersion() < 4)
            tag.SetMusicBrainzArtistHints(StringListToVectorString(TagLib::StringList::split(stringList.front(), TagLib::String("/"))));
          else
            tag.SetMusicBrainzArtistHints(StringListToVectorString(stringList));
        }
        else if (desc == "ALBUMARTISTS" || desc == "ALBUM ARTISTS")
        {
          if (id3v2->header()->majorVersion() < 4)
            tag.SetMusicBrainzAlbumArtistHints(StringListToVectorString(TagLib::StringList::split(stringList.front(), TagLib::String("/"))));
          else
            tag.SetMusicBrainzAlbumArtistHints(StringListToVectorString(stringList));
        }
        else if (desc == "MOOD")
          tag.SetMood(stringList.front().to8Bit(true));
        else if (g_advancedSettings.m_logLevel == LOG_LEVEL_MAX)
          CLog::Log(LOGDEBUG, "unrecognized user text tag detected: TXXX:%s", frame->description().toCString(true));
      }
    else if (it->first == "UFID")
      // Loop through any UFID frames and set them
      for (ID3v2::FrameList::ConstIterator ut = it->second.begin(); ut != it->second.end(); ++ut)
      {
        ID3v2::UniqueFileIdentifierFrame *ufid = reinterpret_cast<ID3v2::UniqueFileIdentifierFrame*> (*ut);
        if (ufid->owner() == "http://musicbrainz.org")
//.........这里部分代码省略.........

std::string CCDDARipper::GetAlbumDirName(const MUSIC_INFO::CMusicInfoTag& infoTag)
{
  std::string strAlbumDir;

  // use audiocds.trackpathformat setting to format
  // directory name where CD tracks will be stored,
  // use only format part ending at the last '/'
  strAlbumDir = CSettings::GetInstance().GetString(CSettings::SETTING_AUDIOCDS_TRACKPATHFORMAT);
  size_t pos = strAlbumDir.find_last_of("/\\");
  if (pos == std::string::npos)
    return ""; // no directory
  
  strAlbumDir = strAlbumDir.substr(0, pos);

  // replace %A with album artist name
  if (strAlbumDir.find("%A") != std::string::npos)
  {
    std::string strAlbumArtist = StringUtils::Join(infoTag.GetAlbumArtist(), g_advancedSettings.m_musicItemSeparator);
    if (strAlbumArtist.empty())
      strAlbumArtist = StringUtils::Join(infoTag.GetArtist(), g_advancedSettings.m_musicItemSeparator);
    if (strAlbumArtist.empty())
      strAlbumArtist = "Unknown Artist";
    else
      StringUtils::Replace(strAlbumArtist, '/', '_');
    StringUtils::Replace(strAlbumDir, "%A", strAlbumArtist);
  }

  // replace %B with album title
  if (strAlbumDir.find("%B") != std::string::npos)
  {
    std::string strAlbum = infoTag.GetAlbum();
    if (strAlbum.empty())
      strAlbum = StringUtils::Format("Unknown Album %s", CDateTime::GetCurrentDateTime().GetAsLocalizedDateTime().c_str());
    else
      StringUtils::Replace(strAlbum, '/', '_');
    StringUtils::Replace(strAlbumDir, "%B", strAlbum);
  }

  // replace %G with genre
  if (strAlbumDir.find("%G") != std::string::npos)
  {
    std::string strGenre = StringUtils::Join(infoTag.GetGenre(), g_advancedSettings.m_musicItemSeparator);
    if (strGenre.empty())
      strGenre = "Unknown Genre";
    else
      StringUtils::Replace(strGenre, '/', '_');
    StringUtils::Replace(strAlbumDir, "%G", strGenre);
  }

  // replace %Y with year
  if (strAlbumDir.find("%Y") != std::string::npos)
  {
    std::string strYear = infoTag.GetYearString();
    if (strYear.empty())
      strYear = "Unknown Year";
    else
      StringUtils::Replace(strYear, '/', '_');
    StringUtils::Replace(strAlbumDir, "%Y", strYear);
  }

  return strAlbumDir;
}