//------------------------------------------------------------------------------
// Name: CStreamData::GetSameMediaType()
// Desc: Finds the buffer window for a stream of the specified media type.
//------------------------------------------------------------------------------
WORD CStreamData::GetSameMediaType( WORD * ptrNumMap,
WM_MEDIA_TYPE * pMediaToFind,
BOOL fVBR,
CStreamData& data2,
DWORD * pdwBufferWindow )
{
if( NULL == ptrNumMap || NULL == pMediaToFind || NULL == pdwBufferWindow )
{
return( -1 );
}
DWORD dwCount = m_dwStreamCount * 2;
for( DWORD i =0; i < m_dwStreamCount; i++ )
{
if( fVBR == m_pfVBRStream[i]
&& CompareMediaTypes( pMediaToFind, data2.m_ptrMediaArray[i], fVBR ) )
{
//
// Skip stream if already chosen
//
DWORD j;
for( j = m_dwStreamCount; j < dwCount; j++ )
{
if( ptrNumMap[j] == data2.m_ptrStreamNumArray[i] )
break;
}
if( j == dwCount )
{
*pdwBufferWindow = data2.m_ptrStreamBufferWindow[i];
return( data2.m_ptrStreamNumArray[i] );
}
}
}
return( -1 );
}
int QTFileBroadcaster::MapMovieToStream()
{
int result = -1;
bool matches = false;
ArrayList<bool> map;
bool *isMappedPtr;
int masterPos = 0;
int mappedTracks = 0;
map.SetSize(fStreamSDPParser.fSDPMediaList.Size());
isMappedPtr = map.Begin();
while (isMappedPtr)
{ *isMappedPtr = false;
isMappedPtr = map.Next();
}
TypeMap *movieMediaTypePtr = fMovieSDPParser->fSDPMediaList.Begin();
while (movieMediaTypePtr)
{
TypeMap *streamMediaTypePtr = fStreamSDPParser.fSDPMediaList.Begin();
while (streamMediaTypePtr)
{
matches = CompareMediaTypes(movieMediaTypePtr, streamMediaTypePtr);
if (matches)
{
masterPos = fStreamSDPParser.fSDPMediaList.GetPos();
isMappedPtr = map.SetPos(masterPos);
if (isMappedPtr == NULL)
break;
if (false == *isMappedPtr)
{
movieMediaTypePtr->fMediaStreamPtr = streamMediaTypePtr->fMediaStreamPtr;
*isMappedPtr = true;
mappedTracks++;
break;
}
}
streamMediaTypePtr = fStreamSDPParser.fSDPMediaList.Next();
}
movieMediaTypePtr = fMovieSDPParser->fSDPMediaList.Next();
}
result = mappedTracks;
return result;
}
HRESULT CVideoPin::FillBuffer(IMediaSample* pSample)
{
try
{
Packet* buffer = NULL;
do
{
if (m_pFilter->IsStopping() || m_demux.IsMediaChanging() || m_bFlushing || !m_bSeekDone || m_demux.m_bRebuildOngoing)
{
Sleep(1);
return ERROR_NO_DATA;
}
if (m_demux.EndOfFile())
{
LogDebug("vid: set EOF");
return S_FALSE;
}
if (m_demux.m_bVideoClipSeen || m_demux.m_bAudioRequiresRebuild && !m_demux.m_bVideoClipSeen && !m_demux.m_eAudioClipSeen->Check())
{
CheckPlaybackState();
return ERROR_NO_DATA;
}
if (m_pCachedBuffer)
{
LogDebug("vid: cached fetch %6.3f clip: %d playlist: %d", m_pCachedBuffer->rtStart / 10000000.0, m_pCachedBuffer->nClipNumber, m_pCachedBuffer->nPlaylist);
buffer = m_pCachedBuffer;
m_pCachedBuffer = NULL;
buffer->bDiscontinuity = true;
if (m_bProvidePMT)
{
CMediaType mt(*buffer->pmt);
SetMediaType(&mt);
pSample->SetMediaType(&mt);
m_bProvidePMT = false;
}
}
else
buffer = m_demux.GetVideo();
if (!buffer)
{
if (m_bFirstSample)
Sleep(10);
else
{
if (!m_bClipEndingNotified)
{
// Deliver end of stream notification to flush the video decoder.
// This should only happen when the stream enters into paused state
LogDebug("vid: FillBuffer - DeliverEndOfStream");
DeliverEndOfStream();
m_bClipEndingNotified = true;
}
else
Sleep(10);
return ERROR_NO_DATA;
}
}
else
{
bool checkPlaybackState = false;
{
CAutoLock lock(m_section);
if (buffer->nNewSegment > 0)
{
if ((buffer->nNewSegment & NS_NEW_CLIP) == NS_NEW_CLIP)
{
LogDebug("vid: Playlist changed to %d - nNewSegment: %d offset: %6.3f rtStart: %6.3f rtPlaylistTime: %6.3f",
buffer->nPlaylist, buffer->nNewSegment, buffer->rtOffset / 10000000.0, buffer->rtStart / 10000000.0, buffer->rtPlaylistTime / 10000000.0);
m_demux.m_bVideoClipSeen = true;
m_bInitDuration = true;
checkPlaybackState = true;
m_bClipEndingNotified = false;
if (buffer->bResuming || buffer->nNewSegment & NS_INTERRUPTED)
{
m_bDoFakeSeek = true;
m_rtStreamOffset = buffer->rtPlaylistTime;
m_bZeroTimeStream = true;
m_demux.m_bAudioResetStreamPosition = true;
}
else
m_rtStreamOffset = 0;
// LAV video decoder requires an end of stream notification to be able to provide complete video frames
// to downstream filters in a case where we are waiting for the audio pin to see the clip boundary as
// we cannot provide yet the next clip's PMT downstream since audio stream could require a rebuild
if (m_currentDecoder == CLSID_LAVVideo && (buffer->nNewSegment & NS_NEW_PLAYLIST))
{
LogDebug("DeliverEndOFStream LAV Only for audio pin wait (%d,%d)", buffer->nPlaylist, buffer->nClipNumber);
DeliverEndOfStream();
}
}
if ((buffer->nNewSegment & NS_STREAM_RESET) == NS_STREAM_RESET)
m_bInitDuration = true;
}
if (buffer->pmt)
{
GUID subtype = subtype = buffer->pmt->subtype;
if (buffer->pmt->subtype == FOURCCMap('1CVW') && m_VC1Override != GUID_NULL)
{
buffer->pmt->subtype = m_VC1Override;
LogDebug("vid: FillBuffer - force VC-1 GUID");
}
if (!CompareMediaTypes(buffer->pmt, &m_mt))
{
LogMediaType(buffer->pmt);
HRESULT hrAccept = S_FALSE;
m_bProvidePMT = true;
if (m_pReceiver && CheckVideoFormat(&buffer->pmt->subtype, &m_currentDecoder))
{
// Currently no other video decoders than LAV seems to be compatible with
// the dynamic format changes
if (m_currentDecoder == CLSID_LAVVideo)
hrAccept = m_pReceiver->QueryAccept(buffer->pmt);
}
if (hrAccept != S_OK)
{
CMediaType mt(*buffer->pmt);
SetMediaType(&mt);
LogDebug("vid: graph rebuilding required");
m_demux.m_bVideoRequiresRebuild = true;
m_bZeroTimeStream = true;
checkPlaybackState = true;
//LogDebug("DeliverEndOFStream for rebuild (%d,%d)", buffer->nPlaylist, buffer->nClipNumber);
//DeliverEndOfStream();
}
else
{
LogDebug("vid: format change accepted");
CMediaType mt(*buffer->pmt);
SetMediaType(&mt);
pSample->SetMediaType(&mt);
buffer->nNewSegment = 0;
m_pCachedBuffer = buffer;
//if (m_currentDecoder == CLSID_LAVVideo)
//{
// LogDebug("DeliverEndOFStream LAV Only (%d,%d)", buffer->nPlaylist, buffer->nClipNumber);
// DeliverEndOfStream();
//}
return ERROR_NO_DATA;
}
} // comparemediatypes
}
} // lock ends
m_rtTitleDuration = buffer->rtTitleDuration;
if (checkPlaybackState)
{
buffer->nNewSegment = 0;
m_pCachedBuffer = buffer;
CheckPlaybackState();
LogDebug("vid: cached push %6.3f clip: %d playlist: %d", m_pCachedBuffer->rtStart / 10000000.0, m_pCachedBuffer->nClipNumber, m_pCachedBuffer->nPlaylist);
return ERROR_NO_DATA;
}
bool hasTimestamp = buffer->rtStart != Packet::INVALID_TIME;
REFERENCE_TIME rtCorrectedStartTime = 0;
REFERENCE_TIME rtCorrectedStopTime = 0;
if (hasTimestamp)
{
if (m_bZeroTimeStream)
{
m_rtStreamTimeOffset = buffer->rtStart - buffer->rtClipStartTime;
m_bZeroTimeStream = false;
}
if (m_bDiscontinuity || buffer->bDiscontinuity)
{
LogDebug("vid: set discontinuity");
pSample->SetDiscontinuity(true);
pSample->SetMediaType(buffer->pmt);
m_bDiscontinuity = false;
}
rtCorrectedStartTime = buffer->rtStart - m_rtStreamTimeOffset;
rtCorrectedStopTime = buffer->rtStop - m_rtStreamTimeOffset;
pSample->SetTime(&rtCorrectedStartTime, &rtCorrectedStopTime);
if (m_bInitDuration)
{
m_pFilter->SetTitleDuration(m_rtTitleDuration);
m_pFilter->ResetPlaybackOffset(buffer->rtPlaylistTime - rtCorrectedStartTime);
m_bInitDuration = false;
}
m_pFilter->OnPlaybackPositionChange();
}
else // Buffer has no timestamp
pSample->SetTime(NULL, NULL);
pSample->SetSyncPoint(buffer->bSyncPoint);
{
CAutoLock lock(&m_csDeliver);
if (!m_bFlushing)
{
BYTE* pSampleBuffer;
pSample->SetActualDataLength(buffer->GetDataSize());
pSample->GetPointer(&pSampleBuffer);
memcpy(pSampleBuffer, buffer->GetData(), buffer->GetDataSize());
m_bFirstSample = false;
#ifdef LOG_VIDEO_PIN_SAMPLES
LogDebug("vid: %6.3f corr %6.3f playlist time %6.3f clip: %d playlist: %d size: %d", buffer->rtStart / 10000000.0, rtCorrectedStartTime / 10000000.0,
buffer->rtPlaylistTime / 10000000.0, buffer->nClipNumber, buffer->nPlaylist, buffer->GetCount());
#endif
}
else
{
LogDebug("vid: dropped sample as flush is active!");
return ERROR_NO_DATA;
}
}
//static int iFrameNumber = 0;
//LogMediaSample(pSample, iFrameNumber++);
delete buffer;
}
} while (!buffer);
return NOERROR;
}
catch(...)
{
LogDebug("vid: FillBuffer exception");
}
return S_OK;
}
