当前位置: 首页>>代码示例>>C++>>正文

C++ CDVDInputStream类代码示例

本文整理汇总了C++中CDVDInputStream类的典型用法代码示例。如果您正苦于以下问题：C++ CDVDInputStream类的具体用法？C++ CDVDInputStream怎么用？C++ CDVDInputStream使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了CDVDInputStream类的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: dvd_file_read

static int dvd_file_read(URLContext *h, BYTE* buf, int size)
{
  //if (g_urltimeout && GetTickCount() > g_urltimeout)
  //  return -1;

  CDVDInputStream* pInputStream = (CDVDInputStream*)h->priv_data;
  return pInputStream->Read(buf, size);
}
开发者ID:Avoidnf8，项目名称:xbmc-fork，代码行数:8，代码来源:DVDDemuxFFmpeg.cpp

示例2: dvd_file_write

/*
static int dvd_file_write(URLContext *h, BYTE* buf, int size)
{
  return -1;
}
*/
static offset_t dvd_file_seek(URLContext *h, offset_t pos, int whence)
{
  //if (g_urltimeout && GetTickCount() > g_urltimeout)
  //  return -1;

  CDVDInputStream* pInputStream = (CDVDInputStream*)h->priv_data;
  if(whence == AVSEEK_SIZE)
    return pInputStream->GetLength();
  else
    return pInputStream->Seek(pos, whence);
}
开发者ID:Avoidnf8，项目名称:xbmc-fork，代码行数:17，代码来源:DVDDemuxFFmpeg.cpp

示例3: item

/**
 * \brief Open the item pointed to by pItem and extact streamdetails
 * \return true if the stream details have changed
 */
bool CDVDFileInfo::GetFileStreamDetails(CFileItem *pItem)
{
  if (!pItem)
    return false;

  std::string strFileNameAndPath;
  if (pItem->HasVideoInfoTag())
    strFileNameAndPath = pItem->GetVideoInfoTag()->m_strFileNameAndPath;

  if (strFileNameAndPath.empty())
    strFileNameAndPath = pItem->GetPath();

  std::string playablePath = strFileNameAndPath;
  if (URIUtils::IsStack(playablePath))
    playablePath = XFILE::CStackDirectory::GetFirstStackedFile(playablePath);

  CFileItem item(playablePath, false);
  item.SetMimeTypeForInternetFile();
  CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, item);
  if (!pInputStream)
    return false;

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_PVRMANAGER))
  {
    delete pInputStream;
    return false;
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD) || !pInputStream->Open())
  {
    delete pInputStream;
    return false;
  }

  CDVDDemux *pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream, true);
  if (pDemuxer)
  {
    bool retVal = DemuxerToStreamDetails(pInputStream, pDemuxer, pItem->GetVideoInfoTag()->m_streamDetails, strFileNameAndPath);
    delete pDemuxer;
    delete pInputStream;
    return retVal;
  }
  else
  {
    delete pInputStream;
    return false;
  }
}
开发者ID:bboyandru，项目名称:xbmc，代码行数:52，代码来源:DVDFileInfo.cpp

示例4: GetFileStreamDetails

/**
 * \brief Open the item pointed to by pItem and extact streamdetails
 * \return true if the stream details have changed
 */
bool CDVDFileInfo::GetFileStreamDetails(CFileItem *pItem)
{
  if (!pItem)
    return false;

  CStdString strFileNameAndPath;
  if (pItem->HasVideoInfoTag())
    strFileNameAndPath = pItem->GetVideoInfoTag()->m_strFileNameAndPath;
  else
    return false;

  CStdString playablePath = strFileNameAndPath;
  if (URIUtils::IsStack(playablePath))
    playablePath = XFILE::CStackDirectory::GetFirstStackedFile(playablePath);

  CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, playablePath, "");
  if (!pInputStream)
    return false;

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD) || !pInputStream->Open(playablePath.c_str(), ""))
  {
    delete pInputStream;
    return false;
  }

  CDVDDemux *pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream);
  if (pDemuxer)
  {
    bool retVal = DemuxerToStreamDetails(pInputStream, pDemuxer, pItem->GetVideoInfoTag()->m_streamDetails, strFileNameAndPath);
    delete pDemuxer;
    delete pInputStream;
    return retVal;
  }
  else
  {
    delete pInputStream;
    return false;
  }
}
开发者ID:2BReality，项目名称:xbmc，代码行数:43，代码来源:DVDFileInfo.cpp

示例5: ExtractThumb

bool CDVDFileInfo::ExtractThumb(const std::string &strPath,
                                CTextureDetails &details,
                                CStreamDetails *pStreamDetails, int pos)
{
  std::string redactPath = CURL::GetRedacted(strPath);
  unsigned int nTime = XbmcThreads::SystemClockMillis();
  CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, strPath, "");
  if (!pInputStream)
  {
    CLog::Log(LOGERROR, "InputStream: Error creating stream for %s", redactPath.c_str());
    return false;
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD)
   || pInputStream->IsStreamType(DVDSTREAM_TYPE_BLURAY))
  {
    CLog::Log(LOGDEBUG, "%s: disc streams not supported for thumb extraction, file: %s", __FUNCTION__, redactPath.c_str());
    delete pInputStream;
    return false;
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_PVRMANAGER))
  {
    SAFE_DELETE(pInputStream);
    return false;
  }

  if (!pInputStream->Open(strPath.c_str(), "", true))
  {
    CLog::Log(LOGERROR, "InputStream: Error opening, %s", redactPath.c_str());
    if (pInputStream)
      SAFE_DELETE(pInputStream);
    return false;
  }

  CDVDDemux *pDemuxer = NULL;

  try
  {
    pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream, true);
    if(!pDemuxer)
    {
      SAFE_DELETE(pInputStream);
      CLog::Log(LOGERROR, "%s - Error creating demuxer", __FUNCTION__);
      return false;
    }
  }
  catch(...)
  {
    CLog::Log(LOGERROR, "%s - Exception thrown when opening demuxer", __FUNCTION__);
    if (pDemuxer)
      SAFE_DELETE(pDemuxer);
    SAFE_DELETE(pInputStream);
    return false;
  }

  if (pStreamDetails)
  {
    DemuxerToStreamDetails(pInputStream, pDemuxer, *pStreamDetails, strPath);

    //extern subtitles
    std::vector<std::string> filenames;
    std::string video_path;
    if (strPath.empty())
      video_path = pInputStream->GetFileName();
    else
      video_path = strPath;

    CUtil::ScanForExternalSubtitles(video_path, filenames);

    for(unsigned int i=0;i<filenames.size();i++)
    {
      // if vobsub subtitle:
      if (URIUtils::GetExtension(filenames[i]) == ".idx")
      {
        std::string strSubFile;
        if ( CUtil::FindVobSubPair(filenames, filenames[i], strSubFile) )
          AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i], strSubFile);
      }
      else
      {
        if ( !CUtil::IsVobSub(filenames, filenames[i]) )
        {
          AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i]);
        }
      }
    }
  }

  int nVideoStream = -1;
  for (int i = 0; i < pDemuxer->GetNrOfStreams(); i++)
  {
    CDemuxStream* pStream = pDemuxer->GetStream(i);
    if (pStream)
    {
      // ignore if it's a picture attachment (e.g. jpeg artwork)
      if(pStream->type == STREAM_VIDEO && !(pStream->flags & AV_DISPOSITION_ATTACHED_PIC))
        nVideoStream = i;
      else
        pStream->SetDiscard(AVDISCARD_ALL);
//.........这里部分代码省略.........
开发者ID:zjcdxzy，项目名称:mrmc，代码行数:101，代码来源:DVDFileInfo.cpp

示例6: Open

bool CDVDSubtitleStream::Open(const string& strFile)
{
  CDVDInputStream* pInputStream;
  pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, strFile, "");
  if (pInputStream && pInputStream->Open(strFile.c_str(), ""))
  {
    unsigned char buffer[16384];
    int size_read = 0;
    size_read = pInputStream->Read(buffer,3);
    bool isUTF8 = false;
    bool isUTF16 = false;
    if (buffer[0] == 0xEF && buffer[1] == 0xBB && buffer[2] == 0xBF)
      isUTF8 = true;
    else if (buffer[0] == 0xFF && buffer[1] == 0xFE)
    {
      isUTF16 = true;
      pInputStream->Seek(2, SEEK_SET);
    }
    else
      pInputStream->Seek(0, SEEK_SET);

    if (isUTF16)
    {
      std::wstringstream wstringstream;
      while( (size_read = pInputStream->Read(buffer, sizeof(buffer)-2) ) > 0 )
      {
        buffer[size_read] = buffer[size_read + 1] = '\0';
        CStdStringW temp; 
        g_charsetConverter.utf16LEtoW(std::u16string((char16_t*)buffer),temp); 
        wstringstream << temp; 
      }
      delete pInputStream;

      CStdString strUTF8;
      g_charsetConverter.wToUTF8(CStdStringW(wstringstream.str()),strUTF8);
      m_stringstream.str("");
      m_stringstream << strUTF8;
    }
    else
    {
      while( (size_read = pInputStream->Read(buffer, sizeof(buffer)-1) ) > 0 )
      {
        buffer[size_read] = '\0';
        m_stringstream << buffer;
      }
      delete pInputStream;

      if (!isUTF8)
        isUTF8 = CUtf8Utils::isValidUtf8(m_stringstream.str());

      if (!isUTF8)
      {
        CStdStringW strUTF16;
        CStdString strUTF8;
        g_charsetConverter.subtitleCharsetToW(m_stringstream.str(), strUTF16);
        g_charsetConverter.wToUTF8(strUTF16,strUTF8);
        m_stringstream.str("");
        m_stringstream << strUTF8;
      }
    }
    return true;
  }

  delete pInputStream;
  return false;
}
开发者ID:CaptainRewind，项目名称:xbmc，代码行数:66，代码来源:DVDSubtitleStream.cpp

示例7: item

bool CDVDFileInfo::ExtractThumb(const std::string &strPath,
                                CTextureDetails &details,
                                CStreamDetails *pStreamDetails, int pos)
{
  std::string redactPath = CURL::GetRedacted(strPath);
  unsigned int nTime = XbmcThreads::SystemClockMillis();
  CFileItem item(strPath, false);

  item.SetMimeTypeForInternetFile();
  CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, item);
  if (!pInputStream)
  {
    CLog::Log(LOGERROR, "InputStream: Error creating stream for %s", redactPath.c_str());
    return false;
  }

  if (!pInputStream->Open())
  {
    CLog::Log(LOGERROR, "InputStream: Error opening, %s", redactPath.c_str());
    if (pInputStream)
      delete pInputStream;
    return false;
  }

  CDVDDemux *pDemuxer = NULL;

  try
  {
    pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream, true);
    if(!pDemuxer)
    {
      delete pInputStream;
      CLog::Log(LOGERROR, "%s - Error creating demuxer", __FUNCTION__);
      return false;
    }
  }
  catch(...)
  {
    CLog::Log(LOGERROR, "%s - Exception thrown when opening demuxer", __FUNCTION__);
    if (pDemuxer)
      delete pDemuxer;
    delete pInputStream;
    return false;
  }

  if (pStreamDetails)
  {
    DemuxerToStreamDetails(pInputStream, pDemuxer, *pStreamDetails, strPath);

    //extern subtitles
    std::vector<std::string> filenames;
    std::string video_path;
    if (strPath.empty())
      video_path = pInputStream->GetFileName();
    else
      video_path = strPath;

    CUtil::ScanForExternalSubtitles(video_path, filenames);

    for(unsigned int i=0;i<filenames.size();i++)
    {
      // if vobsub subtitle:
      if (URIUtils::GetExtension(filenames[i]) == ".idx")
      {
        std::string strSubFile;
        if ( CUtil::FindVobSubPair(filenames, filenames[i], strSubFile) )
          AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i], strSubFile);
      }
      else
      {
        if ( !CUtil::IsVobSub(filenames, filenames[i]) )
        {
          AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i]);
        }
      }
    }
  }

  int nVideoStream = -1;
  int64_t demuxerId = -1;
  for (CDemuxStream* pStream : pDemuxer->GetStreams())
  {
    if (pStream)
    {
      // ignore if it's a picture attachment (e.g. jpeg artwork)
      if (pStream->type == STREAM_VIDEO && !(pStream->flags & AV_DISPOSITION_ATTACHED_PIC))
      {
        nVideoStream = pStream->uniqueId;
        demuxerId = pStream->demuxerId;
      }
      else
        pDemuxer->EnableStream(pStream->demuxerId, pStream->uniqueId, false);
    }
  }

  bool bOk = false;
  int packetsTried = 0;

  if (nVideoStream != -1)
  {
//.........这里部分代码省略.........
开发者ID:AchimTuran，项目名称:xbmc，代码行数:101，代码来源:DVDFileInfo.cpp

示例8: demuxer

CDVDDemux* CDVDFactoryDemuxer::CreateDemuxer(CDVDInputStream* pInputStream)
{
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_HTTP))
  {
    CDVDInputStreamHttp* pHttpStream = (CDVDInputStreamHttp*)pInputStream;
    CHttpHeader *header = pHttpStream->GetHttpHeader();

    /* check so we got the meta information as requested in our http header */
    if( header->GetValue("icy-metaint").length() > 0 )
    {
      auto_ptr<CDVDDemuxShoutcast> demuxer(new CDVDDemuxShoutcast());
      if(demuxer->Open(pInputStream))
        return demuxer.release();
      else
        return NULL;
    }
  }

#ifdef HAS_FILESYSTEM_HTSP
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_HTSP))
  {
    auto_ptr<CDVDDemuxHTSP> demuxer(new CDVDDemuxHTSP());
    if(demuxer->Open(pInputStream))
      return demuxer.release();
    else
      return NULL;
  }
#endif

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_PVRMANAGER))
  {
    CDVDInputStreamPVRManager* pInputStreamPVR = (CDVDInputStreamPVRManager*)pInputStream;
    CDVDInputStream* pOtherStream = pInputStreamPVR->GetOtherStream();
    if(pOtherStream)
    {
      /* Used for MediaPortal PVR addon (uses PVR otherstream for playback of rtsp streams) */
      if (pOtherStream->IsStreamType(DVDSTREAM_TYPE_FFMPEG))
      {
        auto_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
        if(demuxer->Open(pOtherStream))
          return demuxer.release();
        else
          return NULL;
      }
    }

    std::string filename = pInputStream->GetFileName();
    /* Use PVR demuxer only for live streams */
    if (filename.substr(0, 14) == "pvr://channels")
    {
      PVR_SERVERPROPS *pProps = g_PVRManager.GetCurrentClientProps();
      if (pProps && pProps->HandleDemuxing)
      {
        auto_ptr<CDVDDemuxPVRClient> demuxer(new CDVDDemuxPVRClient());
        if(demuxer->Open(pInputStream))
          return demuxer.release();
        else
          return NULL;
      }
    }
  }

  auto_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
  if(demuxer->Open(pInputStream))
    return demuxer.release();
  else
    return NULL;
}
开发者ID:margro，项目名称:xbmc-antiquated，代码行数:68，代码来源:DVDFactoryDemuxer.cpp

示例9: demuxer

CDVDDemux* CDVDFactoryDemuxer::CreateDemuxer(CDVDInputStream* pInputStream, bool fileinfo)
{
  if (!pInputStream)
    return NULL;

  // Try to open the AirTunes demuxer
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_FILE) && pInputStream->GetContent().compare("audio/x-xbmc-pcm") == 0 )
  {
    // audio/x-xbmc-pcm this is the used codec for AirTunes
    // (apples audio only streaming)
    unique_ptr<CDVDDemuxBXA> demuxer(new CDVDDemuxBXA());
    if(demuxer->Open(pInputStream))
      return demuxer.release();
    else
      return NULL;
  }
  
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_HTTP))
  {
    CDVDInputStreamHttp* pHttpStream = (CDVDInputStreamHttp*)pInputStream;
    CHttpHeader *header = pHttpStream->GetHttpHeader();

    /* check so we got the meta information as requested in our http header */
    if( header->GetValue("icy-metaint").length() > 0 )
    {
      unique_ptr<CDVDDemuxShoutcast> demuxer(new CDVDDemuxShoutcast());
      if(demuxer->Open(pInputStream))
        return demuxer.release();
      else
        return NULL;
    }
  }

  bool streaminfo = true; /* Look for streams before playback */
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_PVRMANAGER))
  {
    CDVDInputStreamPVRManager* pInputStreamPVR = (CDVDInputStreamPVRManager*)pInputStream;
    CDVDInputStream* pOtherStream = pInputStreamPVR->GetOtherStream();

    /* Don't parse the streaminfo for some cases of streams to reduce the channel switch time */
    bool useFastswitch = URIUtils::IsUsingFastSwitch(pInputStream->GetFileName());
    streaminfo = !useFastswitch;

    if(pOtherStream)
    {
      /* Used for MediaPortal PVR addon (uses PVR otherstream for playback of rtsp streams) */
      if (pOtherStream->IsStreamType(DVDSTREAM_TYPE_FFMPEG))
      {
        unique_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
        if(demuxer->Open(pOtherStream, streaminfo))
          return demuxer.release();
        else
          return NULL;
      }
    }

    /* Use PVR demuxer only for live streams */
    if (URIUtils::IsPVRChannel(pInputStream->GetFileName()))
    {
      std::shared_ptr<CPVRClient> client;
      if (g_PVRClients->GetPlayingClient(client) &&
          client->HandlesDemuxing())
      {
        unique_ptr<CDVDDemuxPVRClient> demuxer(new CDVDDemuxPVRClient());
        if(demuxer->Open(pInputStream))
          return demuxer.release();
        else
          return NULL;
      }
    }
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_FFMPEG))
  {
    bool useFastswitch = URIUtils::IsUsingFastSwitch(pInputStream->GetFileName());
    streaminfo = !useFastswitch;
  }

  unique_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
  if(demuxer->Open(pInputStream, streaminfo, fileinfo))
    return demuxer.release();
  else
    return NULL;
}
开发者ID:sandalsoft，项目名称:mrmc，代码行数:84，代码来源:DVDFactoryDemuxer.cpp

示例10: demuxer

CDVDDemux* CDVDFactoryDemuxer::CreateDemuxer(CDVDInputStream* pInputStream, bool fileinfo)
{
  if (!pInputStream)
    return NULL;

  // Try to open the AirTunes demuxer
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_FILE) && pInputStream->GetContent().compare("audio/x-xbmc-pcm") == 0 )
  {
    // audio/x-xbmc-pcm this is the used codec for AirTunes
    // (apples audio only streaming)
    std::unique_ptr<CDVDDemuxBXA> demuxer(new CDVDDemuxBXA());
    if(demuxer->Open(pInputStream))
      return demuxer.release();
    else
      return NULL;
  }
  
  // Try to open CDDA demuxer
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_FILE) && pInputStream->GetContent().compare("application/octet-stream") == 0)
  {
    std::string filename = pInputStream->GetFileName();
    if (filename.substr(0, 7) == "cdda://")
    {
      CLog::Log(LOGDEBUG, "DVDFactoryDemuxer: Stream is probably CD audio. Creating CDDA demuxer.");

      std::unique_ptr<CDVDDemuxCDDA> demuxer(new CDVDDemuxCDDA());
      if (demuxer->Open(pInputStream))
      {
        return demuxer.release();
      }
    }
  }

  // Input stream handles demuxing
  if (pInputStream->GetIDemux())
  {
    std::unique_ptr<CDVDDemuxClient> demuxer(new CDVDDemuxClient());
    if(demuxer->Open(pInputStream))
      return demuxer.release();
    else
      return nullptr;
  }

  bool streaminfo = true; /* Look for streams before playback */
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_PVRMANAGER))
  {
    CDVDInputStreamPVRManager* pInputStreamPVR = (CDVDInputStreamPVRManager*)pInputStream;
    CDVDInputStream* pOtherStream = pInputStreamPVR->GetOtherStream();

    /* Don't parse the streaminfo for some cases of streams to reduce the channel switch time */
    bool useFastswitch = URIUtils::IsUsingFastSwitch(pInputStream->GetFileName());
    streaminfo = !useFastswitch;

    if (pOtherStream)
    {
      /* Used for MediaPortal PVR addon (uses PVR otherstream for playback of rtsp streams) */
      if (pOtherStream->IsStreamType(DVDSTREAM_TYPE_FFMPEG))
      {
        std::unique_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
        if(demuxer->Open(pOtherStream, streaminfo))
          return demuxer.release();
        else
          return nullptr;
      }
    }
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_FFMPEG))
  {
    bool useFastswitch = URIUtils::IsUsingFastSwitch(pInputStream->GetFileName());
    streaminfo = !useFastswitch;
  }

  // Try to open the MultiFiles demuxer
  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_MULTIFILES))
  {
    std::unique_ptr<CDemuxMultiSource> demuxer(new CDemuxMultiSource());
    if (demuxer->Open(pInputStream))
      return demuxer.release();
    else
      return NULL;
  }

  std::unique_ptr<CDVDDemuxFFmpeg> demuxer(new CDVDDemuxFFmpeg());
  if(demuxer->Open(pInputStream, streaminfo, fileinfo))
    return demuxer.release();
  else
    return NULL;
}
开发者ID:0xheart0，项目名称:xbmc，代码行数:89，代码来源:DVDFactoryDemuxer.cpp

示例11: ExtractThumb

bool CDVDFileInfo::ExtractThumb(const CStdString &strPath, CTextureDetails &details, CStreamDetails *pStreamDetails)
{
  unsigned int nTime = XbmcThreads::SystemClockMillis();
  CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, strPath, "");
  if (!pInputStream)
  {
    CLog::Log(LOGERROR, "InputStream: Error creating stream for %s", strPath.c_str());
    return false;
  }

  if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD))
  {
    CLog::Log(LOGERROR, "InputStream: dvd streams not supported for thumb extraction, file: %s", strPath.c_str());
    delete pInputStream;
    return false;
  }

  if (!pInputStream->Open(strPath.c_str(), ""))
  {
    CLog::Log(LOGERROR, "InputStream: Error opening, %s", strPath.c_str());
    if (pInputStream)
      delete pInputStream;
    return false;
  }

  CDVDDemux *pDemuxer = NULL;

  try
  {
    pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream);
    if(!pDemuxer)
    {
      delete pInputStream;
      CLog::Log(LOGERROR, "%s - Error creating demuxer", __FUNCTION__);
      return false;
    }
  }
  catch(...)
  {
    CLog::Log(LOGERROR, "%s - Exception thrown when opening demuxer", __FUNCTION__);
    if (pDemuxer)
      delete pDemuxer;
    delete pInputStream;
    return false;
  }

  if (pStreamDetails)
    DemuxerToStreamDetails(pInputStream, pDemuxer, *pStreamDetails, strPath);

  CDemuxStream* pStream = NULL;
  int nVideoStream = -1;
  for (int i = 0; i < pDemuxer->GetNrOfStreams(); i++)
  {
    pStream = pDemuxer->GetStream(i);
    if (pStream)
    {
      if(pStream->type == STREAM_VIDEO)
        nVideoStream = i;
      else
        pStream->SetDiscard(AVDISCARD_ALL);
    }
  }

  bool bOk = false;
  int packetsTried = 0;

  if (nVideoStream != -1)
  {
    CDVDVideoCodec *pVideoCodec;

    CDVDStreamInfo hint(*pDemuxer->GetStream(nVideoStream), true);
    hint.software = true;

    if (hint.codec == CODEC_ID_MPEG2VIDEO || hint.codec == CODEC_ID_MPEG1VIDEO)
    {
      // libmpeg2 is not thread safe so use ffmepg for mpeg2/mpeg1 thumb extraction
      CDVDCodecOptions dvdOptions;
      pVideoCodec = CDVDFactoryCodec::OpenCodec(new CDVDVideoCodecFFmpeg(), hint, dvdOptions);
    }
    else
    {
      pVideoCodec = CDVDFactoryCodec::CreateVideoCodec( hint );
    }

    if (pVideoCodec)
    {
      int nTotalLen = pDemuxer->GetStreamLength();
      int nSeekTo = nTotalLen / 3;

      CLog::Log(LOGDEBUG,"%s - seeking to pos %dms (total: %dms) in %s", __FUNCTION__, nSeekTo, nTotalLen, strPath.c_str());
      if (pDemuxer->SeekTime(nSeekTo, true))
      {
        DemuxPacket* pPacket = NULL;
        int iDecoderState = VC_ERROR;
        DVDVideoPicture picture;

        memset(&picture, 0, sizeof(picture));

        // num streams * 80 frames, should get a valid frame, if not abort.
        int abort_index = pDemuxer->GetNrOfStreams() * 80;
//.........这里部分代码省略.........
开发者ID:2BReality，项目名称:xbmc，代码行数:101，代码来源:DVDFileInfo.cpp


注：本文中的CDVDInputStream类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。