Exemplo n.º 1
0
unsigned int CDVDAudio::AddPackets(const DVDAudioFrame &audioframe)
{
  m_bAbort = false;

  CSingleLock lock (m_critSection);

  if(!m_pAudioStream)
    return 0;

  CAESyncInfo info = m_pAudioStream->GetSyncInfo();
  if (info.state == CAESyncInfo::SYNC_INSYNC)
  {
    unsigned int newTime = info.errortime;
    if (newTime != m_syncErrorTime)
    {
      m_syncErrorTime = info.errortime;
      m_syncError = info.error / 1000 * DVD_TIME_BASE;
      m_resampleRatio = info.rr;
    }
  }
  else
  {
    m_syncErrorTime = 0;
    m_syncError = 0.0;
  }

  //Calculate a timeout when this definitely should be done
  double timeout;
  timeout  = DVD_SEC_TO_TIME(m_pAudioStream->GetDelay()) + audioframe.duration;
  timeout += DVD_SEC_TO_TIME(1.0);
  timeout += CDVDClock::GetAbsoluteClock();

  unsigned int total = audioframe.nb_frames;
  unsigned int frames = audioframe.nb_frames;
  unsigned int offset = 0;
  do
  {
    double pts = (offset == 0) ? audioframe.pts / DVD_TIME_BASE * 1000 : 0.0;
    unsigned int copied = m_pAudioStream->AddData(audioframe.data, offset, frames, pts);
    offset += copied;
    frames -= copied;
    if (frames <= 0)
      break;

    if (copied == 0 && timeout < CDVDClock::GetAbsoluteClock())
    {
      CLog::Log(LOGERROR, "CDVDAudio::AddPacketsRenderer - timeout adding data to renderer");
      break;
    }

    lock.Leave();
    Sleep(1);
    lock.Enter();
  } while (!m_bAbort);

  m_playingPts = audioframe.pts + audioframe.duration - GetDelay();
  m_timeOfPts = CDVDClock::GetAbsoluteClock();

  return total - frames;
}
Exemplo n.º 2
0
void CVideoPlayerSubtitle::Process(double pts, double offset)
{
  CSingleLock lock(m_section);

  if (m_pSubtitleFileParser)
  {
    if(pts == DVD_NOPTS_VALUE)
      return;

    if (pts + DVD_SEC_TO_TIME(1) < m_lastPts)
    {
      m_pOverlayContainer->Clear();
      m_pSubtitleFileParser->Reset();
    }

    if(m_pOverlayContainer->GetSize() >= 5)
      return;

    CDVDOverlay* pOverlay = m_pSubtitleFileParser->Parse(pts);
    // add all overlays which fit the pts
    while(pOverlay)
    {
      pOverlay->iPTSStartTime -= offset;
      if(pOverlay->iPTSStopTime != 0.0)
        pOverlay->iPTSStopTime -= offset;

      m_pOverlayContainer->Add(pOverlay);
      pOverlay->Release();
      pOverlay = m_pSubtitleFileParser->Parse(pts);
    }

    m_lastPts = pts;
  }
}
Exemplo n.º 3
0
bool CDVDDemuxVobsub::ParseTimestamp(SState& state, char* line)
{
  if(state.id < 0)
    return false;

  int h,m,s,ms;
  STimestamp timestamp;

  while(*line == ' ') line++;
  if(sscanf(line, "%d:%d:%d:%d, filepos:%" PRIx64, &h, &m, &s, &ms, &timestamp.pos) != 5)
    return false;

  timestamp.id  = state.id;
  timestamp.pts = DVD_SEC_TO_TIME(state.delay + h*3600.0 + m*60.0 + s + ms*0.001);
  m_Timestamps.push_back(timestamp);
  return true;
}
Exemplo n.º 4
0
OMXPacket *OMXReader::Read()
{
  assert(!IsEof());
  
  AVPacket  pkt;
  OMXPacket *m_omx_pkt = NULL;
  int       result = -1;

  if(!m_pFormatContext)
    return NULL;

  Lock();

  // assume we are not eof
  if(m_pFormatContext->pb)
    m_pFormatContext->pb->eof_reached = 0;

  // keep track if ffmpeg doesn't always set these
  pkt.size = 0;
  pkt.data = NULL;
  pkt.stream_index = MAX_OMX_STREAMS;

  result = m_dllAvFormat.av_read_frame(m_pFormatContext, &pkt);
  if (result < 0)
  {
    m_eof = true;
    //FlushRead();
    //m_dllAvCodec.av_free_packet(&pkt);
    UnLock();
    return NULL;
  }
  else if (pkt.size < 0 || pkt.stream_index >= MAX_OMX_STREAMS)
  {
    // XXX, in some cases ffmpeg returns a negative packet size
    if(m_pFormatContext->pb && !m_pFormatContext->pb->eof_reached)
    {
      CLog::Log(LOGERROR, "OMXReader::Read no valid packet");
      //FlushRead();
    }

    m_dllAvCodec.av_free_packet(&pkt);

    m_eof = true;
    UnLock();
    return NULL;
  }

  AVStream *pStream = m_pFormatContext->streams[pkt.stream_index];

  /* only read packets for active streams */
  /*
  if(!IsActive(pkt.stream_index))
  {
    m_dllAvCodec.av_free_packet(&pkt);
    UnLock();
    return NULL;
  }
  */

  // lavf sometimes bugs out and gives 0 dts/pts instead of no dts/pts
  // since this could only happens on initial frame under normal
  // circomstances, let's assume it is wrong all the time
  if(pkt.dts == 0)
    pkt.dts = AV_NOPTS_VALUE;
  if(pkt.pts == 0)
    pkt.pts = AV_NOPTS_VALUE;

  if(m_bMatroska && pStream->codec && pStream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
  { // matroska can store different timestamps
    // for different formats, for native stored
    // stuff it is pts, but for ms compatibility
    // tracks, it is really dts. sadly ffmpeg
    // sets these two timestamps equal all the
    // time, so we select it here instead
    if(pStream->codec->codec_tag == 0)
      pkt.dts = AV_NOPTS_VALUE;
    else
      pkt.pts = AV_NOPTS_VALUE;
  }
  // we need to get duration slightly different for matroska embedded text subtitels
  if(m_bMatroska && pStream->codec->codec_id == CODEC_ID_TEXT && pkt.convergence_duration != 0)
    pkt.duration = pkt.convergence_duration;

  if(m_bAVI && pStream->codec && pStream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
  {
    // AVI's always have borked pts, specially if m_pFormatContext->flags includes
    // AVFMT_FLAG_GENPTS so always use dts
    pkt.pts = AV_NOPTS_VALUE;
  }

  m_omx_pkt = AllocPacket(pkt.size);
  /* oom error allocation av packet */
  if(!m_omx_pkt)
  {
    m_eof = true;
    m_dllAvCodec.av_free_packet(&pkt);
    UnLock();
    return NULL;
  }

  m_omx_pkt->codec_type = pStream->codec->codec_type;

  /* copy content into our own packet */
  m_omx_pkt->size = pkt.size;

  if (pkt.data)
    memcpy(m_omx_pkt->data, pkt.data, m_omx_pkt->size);

  m_omx_pkt->stream_index = pkt.stream_index;
  GetHints(pStream, &m_omx_pkt->hints);

  //m_omx_pkt->dts = ConvertTimestamp(pkt.dts, pStream->time_base.den, pStream->time_base.num);
  //m_omx_pkt->pts = ConvertTimestamp(pkt.pts, pStream->time_base.den, pStream->time_base.num);
  m_omx_pkt->dts = ConvertTimestamp(pkt.dts, &pStream->time_base);
  m_omx_pkt->pts = ConvertTimestamp(pkt.pts, &pStream->time_base);
  m_omx_pkt->duration = DVD_SEC_TO_TIME((double)pkt.duration * pStream->time_base.num / pStream->time_base.den);

  // used to guess streamlength
  if (m_omx_pkt->dts != DVD_NOPTS_VALUE && (m_omx_pkt->dts > m_iCurrentPts || m_iCurrentPts == DVD_NOPTS_VALUE))
    m_iCurrentPts = m_omx_pkt->dts;

  // check if stream has passed full duration, needed for live streams
  if(pkt.dts != (int64_t)AV_NOPTS_VALUE)
  {
    int64_t duration;
    duration = pkt.dts;
    if(pStream->start_time != (int64_t)AV_NOPTS_VALUE)
      duration -= pStream->start_time;

    if(duration > pStream->duration)
    {
      pStream->duration = duration;
      duration = m_dllAvUtil.av_rescale_rnd(pStream->duration, (int64_t)pStream->time_base.num * AV_TIME_BASE, 
                                            pStream->time_base.den, AV_ROUND_NEAR_INF);
      if ((m_pFormatContext->duration == (int64_t)AV_NOPTS_VALUE)
          ||  (m_pFormatContext->duration != (int64_t)AV_NOPTS_VALUE && duration > m_pFormatContext->duration))
        m_pFormatContext->duration = duration;
    }
  }

  m_dllAvCodec.av_free_packet(&pkt);

  UnLock();
  return m_omx_pkt;
}
Exemplo n.º 5
0
bool OMXPlayerAudio::Decode(DemuxPacket *pkt, bool bDropPacket, bool bTrickPlay)
{
  if(!pkt || m_bad_state || !m_pAudioCodec)
    return false;

  if(pkt->dts != DVD_NOPTS_VALUE)
    m_audioClock = pkt->dts;

  bool settings_changed = false;
  const uint8_t *data_dec = pkt->pData;
  int            data_len = pkt->iSize;

  if (bTrickPlay)
  {
    settings_changed = true;
  }
  else if(m_format.m_dataFormat != AE_FMT_RAW && !bDropPacket)
  {
    double dts = pkt->dts, pts=pkt->pts;
    while(!m_bStop && data_len > 0)
    {
      int len = m_pAudioCodec->Decode((BYTE *)data_dec, data_len, dts, pts);
      if( (len < 0) || (len >  data_len) )
      {
        m_pAudioCodec->Reset();
        break;
      }

      data_dec+= len;
      data_len -= len;

      uint8_t *decoded;
      int decoded_size = m_pAudioCodec->GetData(&decoded, dts, pts);

      if(decoded_size <=0)
        continue;

      int ret = 0;

      m_audioStats.AddSampleBytes(decoded_size);

      if(CodecChange())
      {
        m_DecoderOpen = OpenDecoder();
        if(!m_DecoderOpen)
          return false;
      }

      while(!m_bStop)
      {
        // discard if flushing as clocks may be stopped and we'll never submit it
        if(m_flush)
          break;

        if(m_omxAudio.GetSpace() < (unsigned int)decoded_size)
        {
          Sleep(10);
          continue;
        }
        
        if(!bDropPacket)
        {
          ret = m_omxAudio.AddPackets(decoded, decoded_size, dts, pts, m_pAudioCodec->GetFrameSize(), settings_changed);
          if(ret != decoded_size)
          {
            CLog::Log(LOGERROR, "error ret %d decoded_size %d\n", ret, decoded_size);
          }
        }

        break;

      }
    }
  }
  else if(!bDropPacket)
  {
    if(CodecChange())
    {
      m_DecoderOpen = OpenDecoder();
      if(!m_DecoderOpen)
        return false;
    }

    while(!m_bStop)
    {
      if(m_flush)
        break;

      if(m_omxAudio.GetSpace() < (unsigned int)pkt->iSize)
      {
        Sleep(10);
        continue;
      }
        
      if(!bDropPacket)
      {
        m_omxAudio.AddPackets(pkt->pData, pkt->iSize, m_audioClock, m_audioClock, 0, settings_changed);
      }

      m_audioStats.AddSampleBytes(pkt->iSize);

      break;
    }
  }

  if(bDropPacket || bTrickPlay)
    m_stalled = false;

  // signal to our parent that we have initialized
  if (m_syncState == IDVDStreamPlayer::SYNC_STARTING && !bDropPacket && settings_changed)
  {
    m_syncState = IDVDStreamPlayer::SYNC_WAITSYNC;
    SStartMsg msg;
    msg.player = VideoPlayer_AUDIO;
    msg.cachetotal = DVD_SEC_TO_TIME(m_omxAudio.GetCacheTotal());
    msg.cachetime = DVD_SEC_TO_TIME(m_omxAudio.GetCacheTime());
    msg.timestamp = m_audioClock;
    m_messageParent.Put(new CDVDMsgType<SStartMsg>(CDVDMsg::PLAYER_STARTED, msg));
  }

  return true;
}
Exemplo n.º 6
0
void CVideoPlayerAudio::Process()
{
  CLog::Log(LOGNOTICE, "running thread: CVideoPlayerAudio::Process()");

  DVDAudioFrame audioframe;
  m_audioStats.Start();

  while (!m_bStop)
  {
    CDVDMsg* pMsg;
    int timeout  = (int)(1000 * m_dvdAudio.GetCacheTime()) + 100;

    // read next packet and return -1 on error
    int priority = 1;
    //Do we want a new audio frame?
    if (m_syncState == IDVDStreamPlayer::SYNC_STARTING ||              /* when not started */
        ALLOW_AUDIO(m_speed) || /* when playing normally */
        m_speed <  DVD_PLAYSPEED_PAUSE  || /* when rewinding */
        (m_speed >  DVD_PLAYSPEED_NORMAL && m_audioClock < m_pClock->GetClock())) /* when behind clock in ff */
      priority = 0;

    if (m_syncState == IDVDStreamPlayer::SYNC_WAITSYNC)
      priority = 1;

    // consider stream stalled if queue is empty
    // we can't sync audio to clock with an empty queue
    if (ALLOW_AUDIO(m_speed) && !m_stalled)
    {
      timeout = 0;
    }

    MsgQueueReturnCode ret = m_messageQueue.Get(&pMsg, timeout, priority);

    if (MSGQ_IS_ERROR(ret))
    {
      CLog::Log(LOGERROR, "Got MSGQ_ABORT or MSGO_IS_ERROR return true");
      break;
    }
    else if (ret == MSGQ_TIMEOUT)
    {
      // Flush as the audio output may keep looping if we don't
      if (ALLOW_AUDIO(m_speed) && !m_stalled && m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
      {
        // while AE sync is active, we still have time to fill buffers
        if (m_syncTimer.IsTimePast())
        {
          CLog::Log(LOGNOTICE, "CVideoPlayerAudio::Process - stream stalled");
          m_stalled = true;
        }
      }
      if (timeout == 0)
        Sleep(10);
      continue;
    }

    // handle messages
    if (pMsg->IsType(CDVDMsg::GENERAL_SYNCHRONIZE))
    {
      if(((CDVDMsgGeneralSynchronize*)pMsg)->Wait( 100, SYNCSOURCE_AUDIO ))
        CLog::Log(LOGDEBUG, "CVideoPlayerAudio - CDVDMsg::GENERAL_SYNCHRONIZE");
      else
        m_messageQueue.Put(pMsg->Acquire(), 1);  // push back as prio message, to process other prio messages
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_RESYNC))
    { //player asked us to set internal clock
      double pts = static_cast<CDVDMsgDouble*>(pMsg)->m_value;
      CLog::Log(LOGDEBUG, "CVideoPlayerAudio - CDVDMsg::GENERAL_RESYNC(%f)", pts);

      m_audioClock = pts + m_dvdAudio.GetDelay();
      if (m_speed != DVD_PLAYSPEED_PAUSE)
        m_dvdAudio.Resume();
      m_syncState = IDVDStreamPlayer::SYNC_INSYNC;
      m_syncTimer.Set(3000);
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_RESET))
    {
      if (m_pAudioCodec)
        m_pAudioCodec->Reset();
      m_syncState = IDVDStreamPlayer::SYNC_STARTING;
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_FLUSH))
    {
      bool sync = static_cast<CDVDMsgBool*>(pMsg)->m_value;
      m_dvdAudio.Flush();
      m_stalled = true;
      m_audioClock = 0;

      if (sync)
      {
        m_syncState = IDVDStreamPlayer::SYNC_STARTING;
        m_dvdAudio.Pause();
      }

      if (m_pAudioCodec)
        m_pAudioCodec->Reset();
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_EOF))
    {
      CLog::Log(LOGDEBUG, "CVideoPlayerAudio - CDVDMsg::GENERAL_EOF");
    }
    else if (pMsg->IsType(CDVDMsg::PLAYER_SETSPEED))
    {
      double speed = static_cast<CDVDMsgInt*>(pMsg)->m_value;

      if (ALLOW_AUDIO(speed))
      {
        if (speed != m_speed)
        {
          if (m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
            m_dvdAudio.Resume();
        }
      }
      else
      {
        m_dvdAudio.Pause();
      }
      m_speed = speed;
    }
    else if (pMsg->IsType(CDVDMsg::AUDIO_SILENCE))
    {
      m_silence = static_cast<CDVDMsgBool*>(pMsg)->m_value;
      CLog::Log(LOGDEBUG, "CVideoPlayerAudio - CDVDMsg::AUDIO_SILENCE(%f, %d)"
                , m_audioClock, m_silence);
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_STREAMCHANGE))
    {
      CDVDMsgAudioCodecChange* msg(static_cast<CDVDMsgAudioCodecChange*>(pMsg));
      OpenStream(msg->m_hints, msg->m_codec);
      msg->m_codec = NULL;
    }
    else if (pMsg->IsType(CDVDMsg::DEMUXER_PACKET))
    {
      DemuxPacket* pPacket = ((CDVDMsgDemuxerPacket*)pMsg)->GetPacket();
      bool bPacketDrop  = ((CDVDMsgDemuxerPacket*)pMsg)->GetPacketDrop();

      int consumed = m_pAudioCodec->Decode(pPacket->pData, pPacket->iSize, pPacket->dts, pPacket->pts);
      if (consumed < 0)
      {
        CLog::Log(LOGERROR, "CVideoPlayerAudio::DecodeFrame - Decode Error. Skipping audio packet (%d)", consumed);
        m_pAudioCodec->Reset();
        pMsg->Release();
        continue;
      }

      m_audioStats.AddSampleBytes(pPacket->iSize);
      UpdatePlayerInfo();

      // loop while no error and decoder produces output
      while (!m_bStop)
      {
        // get decoded data and the size of it
        m_pAudioCodec->GetData(audioframe);

        if (audioframe.nb_frames == 0)
        {
          if (consumed >= pPacket->iSize)
            break;
          int ret = m_pAudioCodec->Decode(pPacket->pData+consumed, pPacket->iSize-consumed, DVD_NOPTS_VALUE, DVD_NOPTS_VALUE);
          if (ret < 0)
          {
            CLog::Log(LOGERROR, "CVideoPlayerAudio::DecodeFrame - Decode Error. Skipping audio packet (%d)", ret);
            m_pAudioCodec->Reset();
            break;
          }
          consumed += ret;
          continue;
        }

        audioframe.hasTimestamp = true;
        if (audioframe.pts == DVD_NOPTS_VALUE)
        {
          audioframe.pts = m_audioClock;
          audioframe.hasTimestamp = false;
        }
        else
        {
          m_audioClock = audioframe.pts;
        }

        //Drop when not playing normally
        if (!ALLOW_AUDIO(m_speed) && m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
        {
          break;
        }

        if (audioframe.format.m_sampleRate && m_streaminfo.samplerate != (int) audioframe.format.m_sampleRate)
        {
          // The sample rate has changed or we just got it for the first time
          // for this stream. See if we should enable/disable passthrough due
          // to it.
          m_streaminfo.samplerate = audioframe.format.m_sampleRate;
          if (SwitchCodecIfNeeded())
          {
            break;
          }
        }

        // demuxer reads metatags that influence channel layout
        if (m_streaminfo.codec == AV_CODEC_ID_FLAC && m_streaminfo.channellayout)
          audioframe.format.m_channelLayout = CAEUtil::GetAEChannelLayout(m_streaminfo.channellayout);

        // we have succesfully decoded an audio frame, setup renderer to match
        if (!m_dvdAudio.IsValidFormat(audioframe))
        {
          if(m_speed)
            m_dvdAudio.Drain();

          m_dvdAudio.Destroy();

          if (!m_dvdAudio.Create(audioframe, m_streaminfo.codec, m_setsynctype == SYNC_RESAMPLE))
            CLog::Log(LOGERROR, "%s - failed to create audio renderer", __FUNCTION__);

          if (m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
            m_dvdAudio.Resume();

          m_streaminfo.channels = audioframe.format.m_channelLayout.Count();

          m_messageParent.Put(new CDVDMsg(CDVDMsg::PLAYER_AVCHANGE));
        }

        // Zero out the frame data if we are supposed to silence the audio
        if (m_silence)
        {
          int size = audioframe.nb_frames * audioframe.framesize / audioframe.planes;
          for (unsigned int i=0; i<audioframe.planes; i++)
            memset(audioframe.data[i], 0, size);
        }

        SetSyncType(audioframe.passthrough);

        if (!bPacketDrop)
        {
          OutputPacket(audioframe);

          // signal to our parent that we have initialized
          if(m_syncState == IDVDStreamPlayer::SYNC_STARTING)
          {
            double cachetotal = DVD_SEC_TO_TIME(m_dvdAudio.GetCacheTotal());
            double cachetime = m_dvdAudio.GetDelay();
            if (cachetime >= cachetotal * 0.5)
            {
              m_syncState = IDVDStreamPlayer::SYNC_WAITSYNC;
              m_stalled = false;
              SStartMsg msg;
              msg.player = VideoPlayer_AUDIO;
              msg.cachetotal = cachetotal;
              msg.cachetime = cachetime;
              msg.timestamp = audioframe.hasTimestamp ? audioframe.pts : DVD_NOPTS_VALUE;
              m_messageParent.Put(new CDVDMsgType<SStartMsg>(CDVDMsg::PLAYER_STARTED, msg));
            }
          }
        }

        // guess next pts
        m_audioClock += audioframe.duration;

        int ret = m_pAudioCodec->Decode(nullptr, 0, DVD_NOPTS_VALUE, DVD_NOPTS_VALUE);
        if (ret < 0)
        {
          CLog::Log(LOGERROR, "CVideoPlayerAudio::DecodeFrame - Decode Error. Skipping audio packet (%d)", ret);
          m_pAudioCodec->Reset();
          break;
        }
      } // while decoder produces output

    } // demuxer packet
    
    pMsg->Release();
  }
}
Exemplo n.º 7
0
DemuxPacket* CDVDDemuxFFmpeg::Read()
{
  AVPacket pkt;
  DemuxPacket* pPacket = NULL;
  // on some cases where the received packet is invalid we will need to return an empty packet (0 length) otherwise the main loop (in CDVDPlayer) 
  // would consider this the end of stream and stop.
  bool bReturnEmpty = false;
  Lock();
  if (m_pFormatContext)
  {
    // assume we are not eof
    if(m_pFormatContext->pb)
      m_pFormatContext->pb->eof_reached = 0;

    // timeout reads after 100ms
    g_urltimeout = GetTickCount() + 100;
    //g_urltimeout = 0;
    int result = 0;
    try
    {
      result = m_dllAvFormat.av_read_frame(m_pFormatContext, &pkt);
    }
    catch(const win32_exception &e)
    {
      e.writelog(__FUNCTION__);
      result = AVERROR(EFAULT);
    }
    g_urltimeout = 0;

    if (result == AVERROR(EINTR) || result == AVERROR(EAGAIN))
    {
      // timeout, probably no real error, return empty packet
      bReturnEmpty = true;
    }
    else if (result < 0)
    {
      Flush();
    }
    else
    {
      // XXX, in some cases ffmpeg returns a negative packet size
      if (pkt.size < 0 || pkt.stream_index >= MAX_STREAMS)
      {
        CLog::Log(LOGERROR, "CDVDDemuxFFmpeg::Read() no valid packet");
        bReturnEmpty = true;
      }
      else
      {
        AVStream *stream = m_pFormatContext->streams[pkt.stream_index];

        if (m_pFormatContext->nb_programs)
        {
          /* check so packet belongs to selected program */
          for (unsigned int i = 0; i < m_pFormatContext->programs[m_program]->nb_stream_indexes; i++)
          {
            if(pkt.stream_index == (int)m_pFormatContext->programs[m_program]->stream_index[i])
            {
              pPacket = CDVDDemuxUtils::AllocateDemuxPacket(pkt.size);
              break;
            }
          }

          if (!pPacket)
            bReturnEmpty = true;
        }
        else
          pPacket = CDVDDemuxUtils::AllocateDemuxPacket(pkt.size);

        if (pPacket)
        {
          // lavf sometimes bugs out and gives 0 dts/pts instead of no dts/pts
          // since this could only happens on initial frame under normal
          // circomstances, let's assume it is wrong all the time
          if(pkt.dts == 0)
            pkt.dts = AV_NOPTS_VALUE;
          if(pkt.pts == 0)
            pkt.pts = AV_NOPTS_VALUE;

          if(m_bMatroska && stream->codec && stream->codec->codec_type == CODEC_TYPE_VIDEO)
          { // matroska can store different timestamps
            // for different formats, for native stored
            // stuff it is pts, but for ms compatibility
            // tracks, it is really dts. sadly ffmpeg
            // sets these two timestamps equal all the
            // time, so we select it here instead
            if(stream->codec->codec_tag == 0)
              pkt.dts = AV_NOPTS_VALUE;
            else
              pkt.pts = AV_NOPTS_VALUE;
          }

          // copy contents into our own packet
          pPacket->iSize = pkt.size;

          // maybe we can avoid a memcpy here by detecting where pkt.destruct is pointing too?
          if (pkt.data)
            memcpy(pPacket->pData, pkt.data, pPacket->iSize);

          pPacket->pts = ConvertTimestamp(pkt.pts, stream->time_base.den, stream->time_base.num);
          pPacket->dts = ConvertTimestamp(pkt.dts, stream->time_base.den, stream->time_base.num);
          pPacket->duration =  DVD_SEC_TO_TIME((double)pkt.duration * stream->time_base.num / stream->time_base.den);

          // used to guess streamlength
          if (pPacket->dts != DVD_NOPTS_VALUE && (pPacket->dts > m_iCurrentPts || m_iCurrentPts == DVD_NOPTS_VALUE))
            m_iCurrentPts = pPacket->dts;


          // check if stream has passed full duration, needed for live streams
          if(pkt.dts != (int64_t)AV_NOPTS_VALUE)
          {
              int64_t duration;
              duration = pkt.dts;
              if(stream->start_time != (int64_t)AV_NOPTS_VALUE)
                duration -= stream->start_time;

              if(duration > stream->duration)
              {
                stream->duration = duration;
                duration = m_dllAvUtil.av_rescale_rnd(stream->duration, stream->time_base.num * AV_TIME_BASE, stream->time_base.den, AV_ROUND_NEAR_INF);
                if(m_pFormatContext->duration == (int64_t)AV_NOPTS_VALUE && m_pFormatContext->file_size > 0
                || m_pFormatContext->duration != (int64_t)AV_NOPTS_VALUE && duration > m_pFormatContext->duration)
                  m_pFormatContext->duration = duration;
              }
          }

          // check if stream seem to have grown since start
          if(m_pFormatContext->file_size > 0 && m_pFormatContext->pb)
          {
            if(m_pFormatContext->pb->pos > m_pFormatContext->file_size)
              m_pFormatContext->file_size = m_pFormatContext->pb->pos;
          }

          pPacket->iStreamId = pkt.stream_index; // XXX just for now
        }
      }
      av_free_packet(&pkt);
    }
  }
  Unlock();

  if (bReturnEmpty && !pPacket)
  {
      pPacket = CDVDDemuxUtils::AllocateDemuxPacket(0);
      if(pPacket)
      {
        pPacket->dts = DVD_NOPTS_VALUE;
        pPacket->pts = DVD_NOPTS_VALUE;
        pPacket->iStreamId = -1;
      }
  }

  if (!pPacket) return NULL;

  // check streams, can we make this a bit more simple?
  if (pPacket && pPacket->iStreamId >= 0 && pPacket->iStreamId <= MAX_STREAMS)
  {
    if (!m_streams[pPacket->iStreamId] ||
        m_streams[pPacket->iStreamId]->pPrivate != m_pFormatContext->streams[pPacket->iStreamId] ||
        m_streams[pPacket->iStreamId]->codec != m_pFormatContext->streams[pPacket->iStreamId]->codec->codec_id)
    {
      // content has changed, or stream did not yet exist
      AddStream(pPacket->iStreamId);
    }
    // we already check for a valid m_streams[pPacket->iStreamId] above
    else if (m_streams[pPacket->iStreamId]->type == STREAM_AUDIO)
    {
      if (((CDemuxStreamAudio*)m_streams[pPacket->iStreamId])->iChannels != m_pFormatContext->streams[pPacket->iStreamId]->codec->channels ||
          ((CDemuxStreamAudio*)m_streams[pPacket->iStreamId])->iSampleRate != m_pFormatContext->streams[pPacket->iStreamId]->codec->sample_rate)
      {
        // content has changed
        AddStream(pPacket->iStreamId);
      }
    }
    else if (m_streams[pPacket->iStreamId]->type == STREAM_VIDEO)
    {
      if (((CDemuxStreamVideo*)m_streams[pPacket->iStreamId])->iWidth != m_pFormatContext->streams[pPacket->iStreamId]->codec->width ||
          ((CDemuxStreamVideo*)m_streams[pPacket->iStreamId])->iHeight != m_pFormatContext->streams[pPacket->iStreamId]->codec->height)
      {
        // content has changed
        AddStream(pPacket->iStreamId);
      }
    }
  }
  return pPacket;
}
Exemplo n.º 8
0
bool CVideoPlayerAudio::ProcessDecoderOutput(DVDAudioFrame &audioframe)
{
  if (audioframe.nb_frames <= audioframe.framesOut)
  {
    m_pAudioCodec->GetData(audioframe);

    if (audioframe.nb_frames == 0)
    {
      return false;
    }

    audioframe.hasTimestamp = true;
    if (audioframe.pts == DVD_NOPTS_VALUE)
    {
      audioframe.pts = m_audioClock;
      audioframe.hasTimestamp = false;
    }
    else
    {
      m_audioClock = audioframe.pts;
    }

    if (audioframe.format.m_sampleRate && m_streaminfo.samplerate != (int) audioframe.format.m_sampleRate)
    {
      // The sample rate has changed or we just got it for the first time
      // for this stream. See if we should enable/disable passthrough due
      // to it.
      m_streaminfo.samplerate = audioframe.format.m_sampleRate;
      if (SwitchCodecIfNeeded())
      {
        audioframe.nb_frames = 0;
        return false;
      }
    }

    // demuxer reads metatags that influence channel layout
    if (m_streaminfo.codec == AV_CODEC_ID_FLAC && m_streaminfo.channellayout)
      audioframe.format.m_channelLayout = CAEUtil::GetAEChannelLayout(m_streaminfo.channellayout);

    // we have successfully decoded an audio frame, setup renderer to match
    if (!m_audioSink.IsValidFormat(audioframe))
    {
      if(m_speed)
        m_audioSink.Drain();

      m_audioSink.Destroy();

      if (!m_audioSink.Create(audioframe, m_streaminfo.codec, m_setsynctype == SYNC_RESAMPLE))
        CLog::Log(LOGERROR, "%s - failed to create audio renderer", __FUNCTION__);

      if (m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
        m_audioSink.Resume();
    }

    SetSyncType(audioframe.passthrough);
  }


  {
    double syncerror = m_audioSink.GetSyncError();
    if (m_synctype == SYNC_DISCON && fabs(syncerror) > DVD_MSEC_TO_TIME(10))
    {
      double correction = m_pClock->ErrorAdjust(syncerror, "CVideoPlayerAudio::OutputPacket");
      if (correction != 0)
      {
        m_audioSink.SetSyncErrorCorrection(-correction);
      }
    }
  }

  int framesOutput = m_audioSink.AddPackets(audioframe);

  // guess next pts
  m_audioClock += audioframe.duration * ((double)framesOutput / audioframe.nb_frames);

  audioframe.framesOut += framesOutput;

  // signal to our parent that we have initialized
  if(m_syncState == IDVDStreamPlayer::SYNC_STARTING)
  {
    double cachetotal = DVD_SEC_TO_TIME(m_audioSink.GetCacheTotal());
    double cachetime = m_audioSink.GetDelay();
    if (cachetime >= cachetotal * 0.5)
    {
      m_syncState = IDVDStreamPlayer::SYNC_WAITSYNC;
      m_stalled = false;
      SStartMsg msg;
      msg.player = VideoPlayer_AUDIO;
      msg.cachetotal = cachetotal;
      msg.cachetime = cachetime;
      msg.timestamp = audioframe.hasTimestamp ? audioframe.pts : DVD_NOPTS_VALUE;
      m_messageParent.Put(new CDVDMsgType<SStartMsg>(CDVDMsg::PLAYER_STARTED, msg));

      m_streaminfo.channels = audioframe.format.m_channelLayout.Count();
      m_processInfo.SetAudioChannels(audioframe.format.m_channelLayout);
      m_processInfo.SetAudioSampleRate(audioframe.format.m_sampleRate);
      m_processInfo.SetAudioBitsPerSample(audioframe.bits_per_sample);
      m_messageParent.Put(new CDVDMsg(CDVDMsg::PLAYER_AVCHANGE));
    }
  }

  return true;
}
Exemplo n.º 9
0
void CVideoPlayerAudio::Process()
{
  CLog::Log(LOGNOTICE, "running thread: CVideoPlayerAudio::Process()");

  DVDAudioFrame audioframe;
  m_audioStats.Start();

  while (!m_bStop)
  {
    int result = DecodeFrame(audioframe);

    //Drop when not playing normally
    if (!ALLOW_AUDIO(m_speed) && m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
    {
      result |= DECODE_FLAG_DROP;
    }

    UpdatePlayerInfo();

    if (result & DECODE_FLAG_ERROR)
    {
      CLog::Log(LOGDEBUG, "CVideoPlayerAudio::Process - Decode Error");
      continue;
    }

    if (result & DECODE_FLAG_TIMEOUT)
    {
      // Flush as the audio output may keep looping if we don't
      if (ALLOW_AUDIO(m_speed) && !m_stalled && m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
      {
        m_stalled = true;
      }

      continue;
    }

    if (result & DECODE_FLAG_ABORT)
    {
      CLog::Log(LOGDEBUG, "CVideoPlayerAudio::Process - Abort received, exiting thread");
      break;
    }

    if (audioframe.nb_frames == 0)
      continue;

    // demuxer reads metatags that influence channel layout
    if (m_streaminfo.codec == AV_CODEC_ID_FLAC && m_streaminfo.channellayout)
      audioframe.format.m_channelLayout = CAEUtil::GetAEChannelLayout(m_streaminfo.channellayout);
    
    // we have succesfully decoded an audio frame, setup renderer to match
    if (!m_dvdAudio.IsValidFormat(audioframe))
    {
      if(m_speed)
        m_dvdAudio.Drain();

      m_dvdAudio.Destroy();

      if(!m_dvdAudio.Create(audioframe, m_streaminfo.codec, m_setsynctype == SYNC_RESAMPLE))
        CLog::Log(LOGERROR, "%s - failed to create audio renderer", __FUNCTION__);

      if (m_syncState == IDVDStreamPlayer::SYNC_INSYNC)
        m_dvdAudio.Resume();

      m_streaminfo.channels = audioframe.format.m_channelLayout.Count();

      g_dataCacheCore.SignalAudioInfoChange();
    }

    // Zero out the frame data if we are supposed to silence the audio
    if (m_silence)
    {
      int size = audioframe.nb_frames * audioframe.framesize / audioframe.planes;
      for (unsigned int i=0; i<audioframe.planes; i++)
        memset(audioframe.data[i], 0, size);
    }

    if(!(result & DECODE_FLAG_DROP))
    {
      SetSyncType(audioframe.passthrough);

      OutputPacket(audioframe);
    }

    // signal to our parent that we have initialized
    if(m_syncState == IDVDStreamPlayer::SYNC_STARTING && !(result & DECODE_FLAG_DROP))
    {
      double cachetotal = DVD_SEC_TO_TIME(m_dvdAudio.GetCacheTotal());
      double cachetime = m_dvdAudio.GetDelay();
      if (cachetime >= cachetotal * 0.5)
      {
        m_syncState = IDVDStreamPlayer::SYNC_WAITSYNC;
        m_stalled = false;
        SStartMsg msg;
        msg.player = VideoPlayer_AUDIO;
        msg.cachetotal = cachetotal;
        msg.cachetime = cachetime;
        msg.timestamp = m_audioClock;
        m_messageParent.Put(new CDVDMsgType<SStartMsg>(CDVDMsg::PLAYER_STARTED, msg));
      }
    }
  }
}
Exemplo n.º 10
0
void CVideoPlayerVideo::Process()
{
  CLog::Log(LOGNOTICE, "running thread: video_thread");

  double pts = 0;
  double frametime = (double)DVD_TIME_BASE / m_fFrameRate;

  bool bRequestDrop = false;
  int iDropDirective;
  bool onlyPrioMsgs = false;

  m_videoStats.Start();
  m_droppingStats.Reset();
  m_iDroppedFrames = 0;
  m_rewindStalled = false;
  m_outputSate = OUTPUT_NORMAL;

  while (!m_bStop)
  {
    int iQueueTimeOut = (int)(m_stalled ? frametime : frametime * 10) / 1000;
    int iPriority = 0;

    if (m_syncState == IDVDStreamPlayer::SYNC_WAITSYNC)
      iPriority = 1;

    if (m_paused)
      iPriority = 1;

    if (onlyPrioMsgs)
    {
      iPriority = 1;
      iQueueTimeOut = 1;
    }

    CDVDMsg* pMsg;
    MsgQueueReturnCode ret = GetMessage(&pMsg, iQueueTimeOut, iPriority);

    onlyPrioMsgs = false;

    if (MSGQ_IS_ERROR(ret))
    {
      CLog::Log(LOGERROR, "Got MSGQ_ABORT or MSGO_IS_ERROR return true");
      break;
    }
    else if (ret == MSGQ_TIMEOUT)
    {
      if (m_outputSate == OUTPUT_AGAIN &&
          m_picture.videoBuffer)
      {
        m_outputSate = OutputPicture(&m_picture);
        if (m_outputSate == OUTPUT_AGAIN)
        {
          onlyPrioMsgs = true;
          continue;
        }
      }
      // don't ask for a new frame if we can't deliver it to renderer
      else if ((m_speed != DVD_PLAYSPEED_PAUSE ||
                m_processInfo.IsFrameAdvance() ||
                m_syncState != IDVDStreamPlayer::SYNC_INSYNC) && !m_paused)
      {
        if (ProcessDecoderOutput(frametime, pts))
        {
          onlyPrioMsgs = true;
          continue;
        }
      }

      // if we only wanted priority messages, this isn't a stall
      if (iPriority)
        continue;

      //Okey, start rendering at stream fps now instead, we are likely in a stillframe
      if (!m_stalled)
      {
        // squeeze pictures out
        while (!m_bStop && m_pVideoCodec)
        {
          m_pVideoCodec->SetCodecControl(DVD_CODEC_CTRL_DRAIN);
          if (!ProcessDecoderOutput(frametime, pts))
            break;
        }

        CLog::Log(LOGINFO, "CVideoPlayerVideo - Stillframe detected, switching to forced %f fps", m_fFrameRate);
        m_stalled = true;
        pts += frametime * 4;
      }

      // Waiting timed out, output last picture
      if (m_picture.videoBuffer)
      {
        m_picture.pts = pts;
        m_outputSate = OutputPicture(&m_picture);
        pts += frametime;
      }

      continue;
    }

    if (pMsg->IsType(CDVDMsg::GENERAL_SYNCHRONIZE))
    {
      if (static_cast<CDVDMsgGeneralSynchronize*>(pMsg)->Wait(100, SYNCSOURCE_VIDEO))
      {
        CLog::Log(LOGDEBUG, "CVideoPlayerVideo - CDVDMsg::GENERAL_SYNCHRONIZE");
      }
      else
        SendMessage(pMsg->Acquire(), 1); /* push back as prio message, to process other prio messages */
      m_droppingStats.Reset();
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_RESYNC))
    {
      pts = static_cast<CDVDMsgDouble*>(pMsg)->m_value;

      m_syncState = IDVDStreamPlayer::SYNC_INSYNC;
      m_droppingStats.Reset();
      m_rewindStalled = false;
      m_renderManager.ShowVideo(true);

      CLog::Log(LOGDEBUG, "CVideoPlayerVideo - CDVDMsg::GENERAL_RESYNC(%f)", pts);
    }
    else if (pMsg->IsType(CDVDMsg::VIDEO_SET_ASPECT))
    {
      CLog::Log(LOGDEBUG, "CVideoPlayerVideo - CDVDMsg::VIDEO_SET_ASPECT");
      m_fForcedAspectRatio = static_cast<float>(*static_cast<CDVDMsgDouble*>(pMsg));
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_RESET))
    {
      if(m_pVideoCodec)
        m_pVideoCodec->Reset();
      if (m_picture.videoBuffer)
      {
        m_picture.videoBuffer->Release();
        m_picture.videoBuffer = nullptr;
      }
      m_packets.clear();
      m_droppingStats.Reset();
      m_syncState = IDVDStreamPlayer::SYNC_STARTING;
      m_renderManager.ShowVideo(false);
      m_rewindStalled = false;
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_FLUSH)) // private message sent by (CVideoPlayerVideo::Flush())
    {
      bool sync = static_cast<CDVDMsgBool*>(pMsg)->m_value;
      if(m_pVideoCodec)
        m_pVideoCodec->Reset();
      if (m_picture.videoBuffer)
      {
        m_picture.videoBuffer->Release();
        m_picture.videoBuffer = nullptr;
      }
      m_packets.clear();
      pts = 0;
      m_rewindStalled = false;

      m_ptsTracker.Flush();
      //we need to recalculate the framerate
      //! @todo this needs to be set on a streamchange instead
      ResetFrameRateCalc();
      m_droppingStats.Reset();

      m_stalled = true;
      if (sync)
      {
        m_syncState = IDVDStreamPlayer::SYNC_STARTING;
        m_renderManager.ShowVideo(false);
      }

      m_renderManager.DiscardBuffer();
    }
    else if (pMsg->IsType(CDVDMsg::PLAYER_SETSPEED))
    {
      m_speed = static_cast<CDVDMsgInt*>(pMsg)->m_value;
      if (m_pVideoCodec)
        m_pVideoCodec->SetSpeed(m_speed);
      m_droppingStats.Reset();
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_STREAMCHANGE))
    {
      CDVDMsgVideoCodecChange* msg(static_cast<CDVDMsgVideoCodecChange*>(pMsg));

      while (!m_bStop && m_pVideoCodec)
      {
        m_pVideoCodec->SetCodecControl(DVD_CODEC_CTRL_DRAIN);
        bool cont = ProcessDecoderOutput(frametime, pts);

        if (!cont)
          break;
      }

      OpenStream(msg->m_hints, msg->m_codec);
      msg->m_codec = NULL;
      if (m_picture.videoBuffer)
      {
        m_picture.videoBuffer->Release();
        m_picture.videoBuffer = nullptr;
      }
    }
    else if (pMsg->IsType(CDVDMsg::VIDEO_DRAIN))
    {
      while (!m_bStop && m_pVideoCodec)
      {
        m_pVideoCodec->SetCodecControl(DVD_CODEC_CTRL_DRAIN);
        if (!ProcessDecoderOutput(frametime, pts))
          break;
      }
    }
    else if (pMsg->IsType(CDVDMsg::GENERAL_PAUSE))
    {
      m_paused = static_cast<CDVDMsgBool*>(pMsg)->m_value;
      CLog::Log(LOGDEBUG, "CVideoPlayerVideo - CDVDMsg::GENERAL_PAUSE: %d", m_paused);
    }
    else if (pMsg->IsType(CDVDMsg::PLAYER_REQUEST_STATE))
    {
      SStateMsg msg;
      msg.player = VideoPlayer_VIDEO;
      msg.syncState = m_syncState;
      m_messageParent.Put(new CDVDMsgType<SStateMsg>(CDVDMsg::PLAYER_REPORT_STATE, msg));
    }
    else if (pMsg->IsType(CDVDMsg::DEMUXER_PACKET))
    {
      DemuxPacket* pPacket = static_cast<CDVDMsgDemuxerPacket*>(pMsg)->GetPacket();
      bool bPacketDrop = static_cast<CDVDMsgDemuxerPacket*>(pMsg)->GetPacketDrop();

      if (m_stalled)
      {
        CLog::Log(LOGINFO, "CVideoPlayerVideo - Stillframe left, switching to normal playback");
        m_stalled = false;
      }

      bRequestDrop = false;
      iDropDirective = CalcDropRequirement(pts);
      if ((iDropDirective & DROP_VERYLATE) &&
           m_bAllowDrop &&
          !bPacketDrop)
      {
        bRequestDrop = true;
      }
      if (iDropDirective & DROP_DROPPED)
      {
        m_iDroppedFrames++;
        m_ptsTracker.Flush();
      }
      if (m_messageQueue.GetDataSize() == 0 ||  m_speed < 0)
      {
        bRequestDrop = false;
        m_iDroppedRequest = 0;
        m_iLateFrames = 0;
      }

      int codecControl = 0;
      if (iDropDirective & DROP_BUFFER_LEVEL)
        codecControl |= DVD_CODEC_CTRL_HURRY;
      if (m_speed > DVD_PLAYSPEED_NORMAL)
        codecControl |= DVD_CODEC_CTRL_NO_POSTPROC;
      if (bPacketDrop)
        codecControl |= DVD_CODEC_CTRL_DROP;
      if (bRequestDrop)
        codecControl |= DVD_CODEC_CTRL_DROP_ANY;
      if (!m_renderManager.Supports(RENDERFEATURE_ROTATION))
        codecControl |= DVD_CODEC_CTRL_ROTATE;
      m_pVideoCodec->SetCodecControl(codecControl);

      if (m_pVideoCodec->AddData(*pPacket))
      {
        // buffer packets so we can recover should decoder flush for some reason
        if (m_pVideoCodec->GetConvergeCount() > 0)
        {
          m_packets.emplace_back(pMsg, 0);
          if (m_packets.size() > m_pVideoCodec->GetConvergeCount() ||
              m_packets.size() * frametime > DVD_SEC_TO_TIME(10))
            m_packets.pop_front();
        }

        m_videoStats.AddSampleBytes(pPacket->iSize);

        if (ProcessDecoderOutput(frametime, pts))
        {
          onlyPrioMsgs = true;
        }
      }
      else
      {
        SendMessageBack(pMsg->Acquire());
        onlyPrioMsgs = true;
      }
    }

    // all data is used by the decoder, we can safely free it now
    pMsg->Release();
  }
}