C++ CCdInfo类代码示例

CCdInfo* CCdIoSupport::GetCdInfo(char* cDeviceFileName)
{
  CSingleLock lock(*m_cdio);

  char* source_name;
  if(cDeviceFileName == NULL)
    source_name = m_cdio->GetDeviceFileName();
  else
    source_name = cDeviceFileName;

  cdio = ::cdio_open(source_name, DRIVER_UNKNOWN);
  if (cdio == NULL)
  {
    CLog::Log(LOGERROR, "%s: Error in automatically selecting driver with input", __FUNCTION__);
    return NULL;
  }

  bool bIsCDRom = true;

  m_nFirstTrackNum = ::cdio_get_first_track_num(cdio);
  if (m_nFirstTrackNum == CDIO_INVALID_TRACK)
  {
#if !defined(TARGET_DARWIN)
    ::cdio_destroy(cdio);
    return NULL;
#else
    m_nFirstTrackNum = 1;
    bIsCDRom = false;
#endif
  }

  m_nNumTracks = ::cdio_get_num_tracks(cdio);
  if (m_nNumTracks == CDIO_INVALID_TRACK)
  {
#if !defined(TARGET_DARWIN)
    ::cdio_destroy(cdio);
    return NULL;
#else
    m_nNumTracks = 1;
    bIsCDRom = false;
#endif
  }

  CCdInfo* info = new CCdInfo;
  info->SetFirstTrack( m_nFirstTrackNum );
  info->SetTrackCount( m_nNumTracks );

  for (i = m_nFirstTrackNum; i <= CDIO_CDROM_LEADOUT_TRACK; i++)
  {
    msf_t msf;
    if (bIsCDRom && !::cdio_get_track_msf(cdio, i, &msf))
    {
      trackinfo ti;
      ti.nfsInfo = FS_UNKNOWN;
      ti.ms_offset = 0;
      ti.isofs_size = 0;
      ti.nJolietLevel = 0;
      ti.nFrames = 0;
      info->SetTrackInformation( i, ti );
      CLog::Log(LOGDEBUG, "cdio_track_msf for track %i failed, I give up.", i);
      delete info;
      ::cdio_destroy(cdio);
      return NULL;
    }

    trackinfo ti;
    if (bIsCDRom && TRACK_FORMAT_AUDIO == ::cdio_get_track_format(cdio, i))
    {
      m_nNumAudio++;
      ti.nfsInfo = FS_NO_DATA;
      m_nFs = FS_NO_DATA;
      int temp1 = ::cdio_get_track_lba(cdio, i) - CDIO_PREGAP_SECTORS;
      int temp2 = ::cdio_get_track_lba(cdio, i + 1) - CDIO_PREGAP_SECTORS;
      // the length is the address of the second track minus the address of the first track
      temp2 -= temp1;    // temp2 now has length of track1 in frames
      ti.nMins = temp2 / (60 * 75);    // calculate the number of minutes
      temp2 %= 60 * 75;    // calculate the left-over frames
      ti.nSecs = temp2 / 75;    // calculate the number of seconds
      if ( -1 == m_nFirstAudio)
        m_nFirstAudio = i;

      // Make sure that we have the Disc related info available
      if (i == 1)
      {
        xbmc_cdtext_t xcdt;
        GetCdTextInfo(xcdt, 0);
        info->SetDiscCDTextInformation( xcdt );
      }

      // Get this tracks info
      GetCdTextInfo(ti.cdtext, i);
    }
    else
    {
      m_nNumData++;
      if ( -1 == m_nFirstData)
        m_nFirstData = i;
    }
    ti.nfsInfo = FS_NO_DATA;
    ti.ms_offset = 0;
//.........这里部分代码省略.........

void CGUIWindowMusicSongs::GetContextButtons(int itemNumber, CContextButtons &buttons)
{
  CFileItemPtr item;
  if (itemNumber >= 0 && itemNumber < m_vecItems->Size())
    item = m_vecItems->Get(itemNumber);

  if (item)
  {
    // are we in the playlists location?
    bool inPlaylists = m_vecItems->GetPath().Equals(CUtil::MusicPlaylistsLocation()) ||
                       m_vecItems->GetPath().Equals("special://musicplaylists/");

    if (m_vecItems->IsVirtualDirectoryRoot())
    {
      // get the usual music shares, and anything for all media windows
      CGUIDialogContextMenu::GetContextButtons("music", item, buttons);
#ifdef HAS_DVD_DRIVE
      // enable Rip CD an audio disc
      if (g_mediaManager.IsDiscInDrive() && item->IsCDDA())
      {
        // those cds can also include Audio Tracks: CDExtra and MixedMode!
        CCdInfo *pCdInfo = g_mediaManager.GetCdInfo();
        if (pCdInfo->IsAudio(1) || pCdInfo->IsCDExtra(1) || pCdInfo->IsMixedMode(1))
          buttons.Add(CONTEXT_BUTTON_RIP_CD, 600);
      }
#endif
      CGUIMediaWindow::GetContextButtons(itemNumber, buttons);
    }
    else
    {
      CGUIWindowMusicBase::GetContextButtons(itemNumber, buttons);
      if (item->GetProperty("pluginreplacecontextitems").asBoolean())
        return;
      if (!item->IsPlayList())
      {
        if (item->IsAudio() && !item->IsLastFM())
          buttons.Add(CONTEXT_BUTTON_SONG_INFO, 658); // Song Info
        else if (!item->IsParentFolder() && !item->IsLastFM() &&
                 !item->GetPath().Left(3).Equals("new") && item->m_bIsFolder)
        {
#if 0
          if (m_musicdatabase.GetAlbumIdByPath(item->GetPath()) > -1)
#endif
            buttons.Add(CONTEXT_BUTTON_INFO, 13351); // Album Info
        }
      }

#ifdef HAS_DVD_DRIVE
      // enable Rip CD Audio or Track button if we have an audio disc
      if (g_mediaManager.IsDiscInDrive() && m_vecItems->IsCDDA())
      {
        // those cds can also include Audio Tracks: CDExtra and MixedMode!
        CCdInfo *pCdInfo = g_mediaManager.GetCdInfo();
        if (pCdInfo->IsAudio(1) || pCdInfo->IsCDExtra(1) || pCdInfo->IsMixedMode(1))
          buttons.Add(CONTEXT_BUTTON_RIP_TRACK, 610);
      }
#endif

      // enable CDDB lookup if the current dir is CDDA
      if (g_mediaManager.IsDiscInDrive() && m_vecItems->IsCDDA() &&
         (g_settings.GetCurrentProfile().canWriteDatabases() || g_passwordManager.bMasterUser))
      {
        buttons.Add(CONTEXT_BUTTON_CDDB, 16002);
      }

      if (!item->IsParentFolder() && !item->IsReadOnly())
      {
        // either we're at the playlist location or its been explicitly allowed
        if (inPlaylists || g_guiSettings.GetBool("filelists.allowfiledeletion"))
        {
          buttons.Add(CONTEXT_BUTTON_DELETE, 117);
          buttons.Add(CONTEXT_BUTTON_RENAME, 118);
        }
      }
    }

    // Add the scan button(s)
    if (g_application.IsMusicScanning())
      buttons.Add(CONTEXT_BUTTON_STOP_SCANNING, 13353); // Stop Scanning
    else if (!inPlaylists && !m_vecItems->IsInternetStream()           &&
             !item->IsLastFM()                                         &&
             !item->GetPath().Equals("add") && !item->IsParentFolder() &&
             !item->IsPlugin()                                         &&
            (g_settings.GetCurrentProfile().canWriteDatabases() || g_passwordManager.bMasterUser))
    {
      buttons.Add(CONTEXT_BUTTON_SCAN, 13352);
    }
    if (item->IsPlugin() || item->IsScript() || m_vecItems->IsPlugin())
      buttons.Add(CONTEXT_BUTTON_PLUGIN_SETTINGS, 1045);
  }
  if (!m_vecItems->IsVirtualDirectoryRoot())
    buttons.Add(CONTEXT_BUTTON_SWITCH_MEDIA, 523);
  CGUIWindowMusicBase::GetNonContextButtons(buttons);
}