C++ CMusicInfoTag::SetArtist方法代码示例

void CTagLoaderTagLib::SetArtist(CMusicInfoTag &tag, const std::vector<std::string> &values)
{
  if (values.size() == 1)
    tag.SetArtist(values[0]);
  else
    tag.SetArtist(values);
}

void CTagLoaderTagLib::SetArtist(CMusicInfoTag &tag, const std::vector<std::string> &values)
{
  if (values.size() == 1)
    tag.SetArtist(values[0]);
  else
    // Fill both artist vector and artist desc from tag value.
    // Note desc may not be empty as it could have been set by previous parsing of ID3v2 before APE
    tag.SetArtist(values, true); 
}

bool CMusicInfoTagLoaderNSF::Load(const CStdString& strFileName, CMusicInfoTag& tag)
{
  tag.SetLoaded(false);

  if (!m_dll.Load())
    return false;

  m_nsf = m_dll.LoadNSF(strFileName.c_str());
  if (!m_nsf)
  {
    CLog::Log(LOGERROR,"MusicInfoTagLoaderNSF: failed to open NSF %s",strFileName.c_str());
    return false;
  }

  tag.SetURL(strFileName);

  tag.SetLoaded(false);
  char* szTitle = (char*)m_dll.GetTitle(m_nsf); // no alloc
  if( szTitle && strcmp(szTitle,"<?>") )
  {
    tag.SetTitle(szTitle);
    tag.SetLoaded(true);
  }

  char* szArtist = (char*)m_dll.GetArtist(m_nsf); // no alloc
  if( szArtist && strcmp(szArtist,"<?>") && tag.Loaded() )
    tag.SetArtist(szArtist);

  m_dll.FreeNSF(m_nsf);
  m_nsf = 0;

  return tag.Loaded();
}

bool CMusicInfoTagLoaderSPC::Load(const CStdString& strFileName, CMusicInfoTag& tag)
{
  tag.SetLoaded(false);

  CFile file;
  if (!file.Open(strFileName))
  {
    CLog::Log(LOGERROR,"MusicInfoTagLoaderSPC: failed to open SPC %s",strFileName.c_str());
    return false;
  }

  tag.SetURL(strFileName);

  tag.SetLoaded(false);
  SPC_ID666* spc = SPC_get_id666FP(file);
  if (!spc)
    return false;
  if( strcmp(spc->songname,"") )
  {
    tag.SetTitle(spc->songname);
    tag.SetLoaded(true);
  }

  if( strcmp(spc->author,"") && tag.Loaded() )
    tag.SetArtist(spc->author);

  if (spc->playtime)
    tag.SetDuration(spc->playtime);
  else
    tag.SetDuration(4*60); // 4 mins

  free(spc);
  return tag.Loaded();
}

bool CTagLoaderTagLib::ParseASF(ASF::Tag *asf, EmbeddedArt *art, CMusicInfoTag& tag)
{
  if (!asf)
    return false;

  tag.SetTitle(asf->title().to8Bit(true));
  const ASF::AttributeListMap& attributeListMap = asf->attributeListMap();
  for (ASF::AttributeListMap::ConstIterator it = attributeListMap.begin(); it != attributeListMap.end(); ++it)
  {
    if (it->first == "Author")                           SetArtist(tag, GetASFStringList(it->second));
    else if (it->first == "WM/AlbumArtist")              SetAlbumArtist(tag, GetASFStringList(it->second));
    else if (it->first == "WM/AlbumTitle")               tag.SetAlbum(it->second.front().toString().to8Bit(true));
    else if (it->first == "WM/TrackNumber" ||
             it->first == "WM/Track")
    {
      if (it->second.front().type() == ASF::Attribute::DWordType)
        tag.SetTrackNumber(it->second.front().toUInt());
      else
        tag.SetTrackNumber(atoi(it->second.front().toString().toCString(true)));
    }
    else if (it->first == "WM/PartOfSet")                tag.SetPartOfSet(atoi(it->second.front().toString().toCString(true)));
    else if (it->first == "WM/Genre")                    SetGenre(tag, GetASFStringList(it->second));
    else if (it->first == "WM/AlbumArtistSortOrder")     {} // Known unsupported, supress warnings
    else if (it->first == "WM/ArtistSortOrder")          {} // Known unsupported, supress warnings
    else if (it->first == "WM/Script")                   {} // Known unsupported, supress warnings
    else if (it->first == "WM/Year")                     tag.SetYear(atoi(it->second.front().toString().toCString(true)));
    else if (it->first == "MusicBrainz/Artist Id")       tag.SetMusicBrainzArtistID(GetASFStringList(it->second));
    else if (it->first == "MusicBrainz/Album Id")        tag.SetMusicBrainzAlbumID(it->second.front().toString().to8Bit(true));
    else if (it->first == "MusicBrainz/Album Artist")    SetAlbumArtist(tag, GetASFStringList(it->second));
    else if (it->first == "MusicBrainz/Album Artist Id") tag.SetMusicBrainzAlbumArtistID(GetASFStringList(it->second));
    else if (it->first == "MusicBrainz/Track Id")        tag.SetMusicBrainzTrackID(it->second.front().toString().to8Bit(true));
    else if (it->first == "MusicBrainz/Album Status")    {}
    else if (it->first == "MusicBrainz/Album Type")      {}
    else if (it->first == "MusicIP/PUID")                {}
    else if (it->first == "replaygain_track_gain")       tag.SetReplayGainTrackGain((int)(atof(it->second.front().toString().toCString(true)) * 100 + 0.5));
    else if (it->first == "replaygain_album_gain")       tag.SetReplayGainAlbumGain((int)(atof(it->second.front().toString().toCString(true)) * 100 + 0.5));
    else if (it->first == "replaygain_track_peak")       tag.SetReplayGainTrackPeak((float)atof(it->second.front().toString().toCString(true)));
    else if (it->first == "replaygain_album_peak")       tag.SetReplayGainAlbumPeak((float)atof(it->second.front().toString().toCString(true)));
    else if (it->first == "WM/Picture")
    { // picture
      ASF::Picture pic = it->second.front().toPicture();
      tag.SetCoverArtInfo(pic.picture().size(), pic.mimeType().toCString());
      if (art)
        art->set((const uint8_t *)pic.picture().data(), pic.picture().size(), pic.mimeType().toCString());
    }
    else if (g_advancedSettings.m_logLevel == LOG_LEVEL_MAX)
      CLog::Log(LOGDEBUG, "unrecognized ASF tag name: %s", it->first.toCString(true));
  }
  // artist may be specified in the ContentDescription block rather than using the 'Author' attribute.
  if (tag.GetArtist().empty())
    tag.SetArtist(asf->artist().toCString(true));
  tag.SetLoaded(true);
  return true;
}

bool CTagLoaderTagLib::ParseTag(ID3v1::Tag *id3v1, EmbeddedArt *art, CMusicInfoTag& tag)
{
  if (!id3v1) return false;
  tag.SetTitle(id3v1->title().to8Bit(true));
  tag.SetArtist(id3v1->artist().to8Bit(true));
  tag.SetAlbum(id3v1->album().to8Bit(true));
  tag.SetComment(id3v1->comment().to8Bit(true));
  tag.SetGenre(id3v1->genre().to8Bit(true));
  tag.SetYear(id3v1->year());
  tag.SetTrackNumber(id3v1->track());
  return true;
}

bool CMusicInfoTagLoaderMod::Load(const CStdString& strFileName, CMusicInfoTag& tag, EmbeddedArt *art)
{
  tag.SetURL(strFileName);
  // first, does the module have a .mdz?
  CStdString strMDZ(URIUtils::ReplaceExtension(strFileName,".mdz"));
  if (CFile::Exists(strMDZ))
  {
    if (!getFile(strMDZ,strMDZ))
    {
      tag.SetLoaded(false);
      return( false );
    }
    ifstream inMDZ(CSpecialProtocol::TranslatePath(strMDZ.c_str()));
    char temp[8192];
    char temp2[8192];

    while (!inMDZ.eof())
    {
      inMDZ.getline(temp,8191);
      if (strstr(temp,"COMPOSER"))
      {
        strcpy(temp2,temp+strlen("COMPOSER "));
        tag.SetArtist(temp2);
      }
      else if (strstr(temp,"TITLE"))
      {
        strcpy(temp2,temp+strlen("TITLE "));
        tag.SetTitle(temp2);
        tag.SetLoaded(true);
      }
      else if (strstr(temp,"PLAYTIME"))
      {
        char* temp3 = strtok(temp+strlen("PLAYTIME "),":");
        int iSecs = atoi(temp3)*60;
        temp3 = strtok(NULL,":");
        iSecs += atoi(temp3);
        tag.SetDuration(iSecs);
      }
      else if (strstr(temp,"STYLE"))
      {
        strcpy(temp2,temp+strlen("STYLE "));
        tag.SetGenre(temp2);
      }
    }
    return( tag.Loaded() );
  }
  else
  {
    // TODO: no, then try to atleast fetch the title
  }

  return tag.Loaded();
}

bool CEncoderLame::Close()
{
  // may return one more mp3 frames
  int iBytes = m_dll.lame_encode_flush(m_pGlobalFlags, m_buffer, sizeof(m_buffer));

  if (iBytes < 0)
  {
    CLog::Log(LOGERROR, "Internal Lame error: %i", iBytes);
    return false;
  }

  WriteStream(m_buffer, iBytes);
  FlushStream();
  FileClose();

  // open again, but now the old way, lame only accepts FILE pointers
  FILE* file = fopen_utf8(m_strFile.c_str(), "rb+");
  if (!file)
  {
    CLog::Log(LOGERROR, "Error: Cannot open file for writing tags: %s", m_strFile.c_str());
    return false;
  }

  m_dll.lame_mp3_tags_fid(m_pGlobalFlags, file); /* add VBR tags to mp3 file */
  fclose(file);

  m_dll.lame_close(m_pGlobalFlags);

  // unload the lame dll
  m_dll.Unload();

  // Store a id3 tag in the ripped file
  CID3Tag id3tag;
  CMusicInfoTag tag;
  tag.SetAlbum(m_strAlbum);
  tag.SetAlbumArtist(m_strAlbumArtist);
  tag.SetArtist(m_strArtist);
  tag.SetGenre(m_strGenre);
  tag.SetTitle(m_strTitle);
  tag.SetTrackNumber(atoi(m_strTrack.c_str()));
  SYSTEMTIME time;
  time.wYear=atoi(m_strYear.c_str());
  tag.SetReleaseDate(time);
  id3tag.SetMusicInfoTag(tag);
  id3tag.Write(m_strFile);

  return true;
}

bool CMusicInfoTagLoaderApe::Load(const CStdString& strFileName, CMusicInfoTag& tag, EmbeddedArt *art)
{
  try
  {
    // retrieve the APE Tag info from strFileName
    // and put it in tag
    tag.SetURL(strFileName);
    DVDPlayerCodec codec;
    if (codec.Init(strFileName, 4096))
    {
      tag.SetDuration((int)(codec.m_TotalTime/1000));
      codec.DeInit();
    }
    CAPEv2Tag myTag;
    if (myTag.ReadTag((char*)strFileName.c_str())) // true to check ID3 tag as well
    {
      tag.SetTitle(myTag.GetTitle());
      tag.SetAlbum(myTag.GetAlbum());
      tag.SetArtist(myTag.GetArtist());
      tag.SetAlbumArtist(myTag.GetAlbumArtist());
      tag.SetGenre(myTag.GetGenre());
      tag.SetTrackNumber(myTag.GetTrackNum());
      tag.SetPartOfSet(myTag.GetDiscNum());
      tag.SetComment(myTag.GetComment());
      tag.SetLyrics(myTag.GetLyrics());
      tag.SetMusicBrainzAlbumArtistID(myTag.GetMusicBrainzAlbumArtistID());
      tag.SetMusicBrainzAlbumID(myTag.GetMusicBrainzAlbumID());
      tag.SetMusicBrainzArtistID(myTag.GetMusicBrainzArtistID());
      tag.SetMusicBrainzTrackID(myTag.GetMusicBrainzTrackID());
      tag.SetMusicBrainzTRMID(myTag.GetMusicBrainzTRMID());
      SYSTEMTIME dateTime;
      ZeroMemory(&dateTime, sizeof(SYSTEMTIME));
      dateTime.wYear = atoi(myTag.GetYear());
      tag.SetRating(myTag.GetRating());
      tag.SetReleaseDate(dateTime);
      tag.SetLoaded();
      return true;
    }
  }
  catch (...)
  {
    CLog::Log(LOGERROR, "Tag loader ape: exception in file %s", strFileName.c_str());
  }

  tag.SetLoaded(false);
  return false;
}

bool CMusicInfoTagLoaderASAP::Load(const CStdString &strFile, CMusicInfoTag &tag, EmbeddedArt *art)
{
    tag.SetLoaded(false);

    if (!m_dll.Load())
        return false;

    CStdString strFileToLoad = strFile;
    int song = -1;
    CStdString strExtension;
    URIUtils::GetExtension(strFile, strExtension);
    strExtension.MakeLower();
    if (strExtension == ".asapstream")
    {
        CStdString strFileName = URIUtils::GetFileName(strFile);
        int iStart = strFileName.ReverseFind('-') + 1;
        song = atoi(strFileName.substr(iStart, strFileName.size() - iStart - 11).c_str()) - 1;
        CStdString strPath = strFile;
        URIUtils::GetDirectory(strPath, strFileToLoad);
        URIUtils::RemoveSlashAtEnd(strFileToLoad);
    }

    ASAP_SongInfo songInfo;
    if (!m_dll.asapGetInfo(strFileToLoad.c_str(), song, &songInfo))
        return false;

    tag.SetURL(strFileToLoad);
    if (songInfo.name[0] != '\0')
        tag.SetTitle(songInfo.name);
    if (songInfo.author[0] != '\0')
        tag.SetArtist(songInfo.author);
    if (song >= 0)
        tag.SetTrackNumber(song + 1);
    if (songInfo.duration >= 0)
        tag.SetDuration(songInfo.duration / 1000);
    if (songInfo.year > 0)
    {
        SYSTEMTIME dateTime = { (WORD)songInfo.year, (WORD)songInfo.month, 0,
                                (WORD)songInfo.day, 0, 0, 0, 0
                              };
        tag.SetReleaseDate(dateTime);
    }
    tag.SetLoaded(true);
    return true;
}

int CPVRChannels::GetChannels(CFileItemList* results, int iGroupID /* = -1 */, bool bHidden /* = false */)
{
  int iAmount = 0;

  SortByChannelNumber();

  for (unsigned int ptr = 0; ptr < size(); ptr++)
  {
    CPVRChannel *channel = at(ptr);

    if (channel->IsHidden() != bHidden)
      continue;

    if (iGroupID != -1 && channel->GroupID() != iGroupID)
      continue;

    CFileItemPtr channelFile(new CFileItem(*channel));

    if (channel->IsRadio())
    {
      CMusicInfoTag* musictag = channelFile->GetMusicInfoTag();
      if (musictag)
      {
        const CPVREpgInfoTag *epgNow = channel->GetEPGNow();
        musictag->SetURL(channel->Path());
        musictag->SetTitle(epgNow->Title());
        musictag->SetArtist(channel->ChannelName());
        musictag->SetAlbumArtist(channel->ChannelName());
        musictag->SetGenre(epgNow->Genre());
        musictag->SetDuration(epgNow->GetDuration());
        musictag->SetLoaded(true);
        musictag->SetComment("");
        musictag->SetLyrics("");
      }
    }

    results->Add(channelFile);
    iAmount++;
  }
  return iAmount;
}

// There is no reliable tag information in MIDI files. There is a 'title' field (@T), but it looks
// like everyone puts there song title, artist name, the name of the person who created the lyrics and
// greetings to their friends and family. Therefore we return the song title as file name, and the
// song artist as parent directory.
// A good intention of creating a pattern-based artist/song recognition engine failed greatly. Simple formats
// like %A-%T fail greatly with artists like A-HA and songs like "Ob-la-Di ob-la-Da.mid". So if anyone has
// a good idea which would include cases from above, I'd be happy to hear about it.
bool CMusicInfoTagLoaderMidi::Load(const CStdString & strFileName, CMusicInfoTag & tag, EmbeddedArt *art)
{
  tag.SetURL(strFileName);

  CStdString path, title;
  URIUtils::Split( strFileName, path, title);
  URIUtils::RemoveExtension( title );

  tag.SetTitle( title );

  URIUtils::RemoveSlashAtEnd(path );

  if ( !path.IsEmpty() )
  {
    CStdString artist = URIUtils::GetFileName( path );
    if ( !artist.IsEmpty() )
      tag.SetArtist( artist );
  }

  tag.SetLoaded(true);
  return true;
}

bool CMusicInfoTagLoaderGYM::Load(const CStdString& strFileName, CMusicInfoTag& tag)
{
  tag.SetLoaded(false);

  if (!m_dll.Load())
    return false;

  m_dll.Init();

  m_gym = m_dll.LoadGYM(strFileName.c_str());
  if (!m_gym)
  {
    CLog::Log(LOGERROR,"MusicInfoTagLoaderGYM: failed to open GYM %s",strFileName.c_str());
    return false;
  }

  tag.SetURL(strFileName);

  tag.SetLoaded(false);
  char* szTitle = (char*)m_dll.GetTitle(m_gym); // no alloc
  if (szTitle)
    if( strcmp(szTitle,"") )
    {
      tag.SetTitle(szTitle);
      tag.SetLoaded(true);
    }

  char* szArtist = (char*)m_dll.GetArtist(m_gym); // no alloc
  if (szArtist)
    if( strcmp(szArtist,"") && tag.Loaded() )
      tag.SetArtist(szArtist);

  m_dll.FreeGYM(m_gym);
  m_gym = 0;

  return tag.Loaded();
}

bool CMusicInfoTagLoaderAdplug::Load(const CStdString& strFileName, CMusicInfoTag& tag)
{
  tag.SetLoaded(false);

  if (!m_dll.Load())
    return false;

  m_adl = m_dll.LoadADL(strFileName.c_str());
  if (!m_adl)
  {
    CLog::Log(LOGERROR,"MusicInfoTagLoaderAdplug: failed to open %s",strFileName.c_str());
    return false;
  }

  tag.SetURL(strFileName);

  tag.SetLoaded(false);
  const char* szTitle = m_dll.GetTitle(m_adl); // no alloc
  if (szTitle)
    if( strcmp(szTitle,"") )
    {
      tag.SetTitle(szTitle);
      tag.SetLoaded(true);
    }

  const char* szArtist = m_dll.GetArtist(m_adl); // no alloc
  if( strcmp(szArtist,"") && tag.Loaded() )
    tag.SetArtist(szArtist);

  tag.SetDuration(m_dll.GetLength(m_adl)/1000);

  m_dll.FreeADL(m_adl);
  m_adl = 0;

  return tag.Loaded();
}

bool CPVRManager::UpdateItem(CFileItem& item)
{
  /* Don't update if a recording is played */
  if (item.IsPVRRecording())
    return false;

  if (!item.IsPVRChannel())
  {
    CLog::Log(LOGERROR, "CPVRManager - %s - no channel tag provided", __FUNCTION__);
    return false;
  }

  CSingleLock lock(m_critSection);
  if (!m_currentFile || *m_currentFile->GetPVRChannelInfoTag() == *item.GetPVRChannelInfoTag())
    return false;

  g_application.CurrentFileItem() = *m_currentFile;
  g_infoManager.SetCurrentItem(*m_currentFile);

  CPVRChannel* channelTag = item.GetPVRChannelInfoTag();
  CEpgInfoTag epgTagNow;
  bool bHasTagNow = channelTag->GetEPGNow(epgTagNow);

  if (channelTag->IsRadio())
  {
    CMusicInfoTag* musictag = item.GetMusicInfoTag();
    if (musictag)
    {
      musictag->SetTitle(bHasTagNow ? epgTagNow.Title() : g_localizeStrings.Get(19055));
      if (bHasTagNow)
        musictag->SetGenre(epgTagNow.Genre());
      musictag->SetDuration(bHasTagNow ? epgTagNow.GetDuration() : 3600);
      musictag->SetURL(channelTag->Path());
      musictag->SetArtist(channelTag->ChannelName());
      musictag->SetAlbumArtist(channelTag->ChannelName());
      musictag->SetLoaded(true);
      musictag->SetComment(StringUtils::EmptyString);
      musictag->SetLyrics(StringUtils::EmptyString);
    }
  }
  else
  {
    CVideoInfoTag *videotag = item.GetVideoInfoTag();
    if (videotag)
    {
      videotag->m_strTitle = bHasTagNow ? epgTagNow.Title() : g_localizeStrings.Get(19055);
      if (bHasTagNow)
        videotag->m_genre = epgTagNow.Genre();
      videotag->m_strPath = channelTag->Path();
      videotag->m_strFileNameAndPath = channelTag->Path();
      videotag->m_strPlot = bHasTagNow ? epgTagNow.Plot() : StringUtils::EmptyString;
      videotag->m_strPlotOutline = bHasTagNow ? epgTagNow.PlotOutline() : StringUtils::EmptyString;
      videotag->m_iEpisode = bHasTagNow ? epgTagNow.EpisodeNum() : 0;
    }
  }

  CPVRChannel* tagPrev = item.GetPVRChannelInfoTag();
  if (tagPrev && tagPrev->ChannelNumber() != m_LastChannel)
  {
    m_LastChannel         = tagPrev->ChannelNumber();
    m_LastChannelChanged  = XbmcThreads::SystemClockMillis();
  }
  if (XbmcThreads::SystemClockMillis() - m_LastChannelChanged >= (unsigned int) g_guiSettings.GetInt("pvrplayback.channelentrytimeout") && m_LastChannel != m_PreviousChannel[m_PreviousChannelIndex])
     m_PreviousChannel[m_PreviousChannelIndex ^= 1] = m_LastChannel;
  else
    m_LastChannelChanged = XbmcThreads::SystemClockMillis();

  return false;
}