HRESULT CHdmvSub::ParseSample(BYTE* pData, int lSampleLen, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop)
{
HRESULT hr = S_OK;
if (pData) {
CGolombBuffer SampleBuffer(pData, lSampleLen);
while (!SampleBuffer.IsEOF()) {
if (m_nCurSegment == NO_SEGMENT) {
HDMV_SEGMENT_TYPE nSegType = (HDMV_SEGMENT_TYPE)SampleBuffer.ReadByte();
unsigned short nUnitSize = SampleBuffer.ReadShort();
lSampleLen -= 3;
switch (nSegType) {
case PALETTE:
case OBJECT:
case PRESENTATION_SEG:
case END_OF_DISPLAY:
m_nCurSegment = nSegType;
AllocSegment(nUnitSize);
break;
case WINDOW_DEF:
case INTERACTIVE_SEG:
case HDMV_SUB1:
case HDMV_SUB2:
// Ignored stuff...
SampleBuffer.SkipBytes(nUnitSize);
break;
default:
return VFW_E_SAMPLE_REJECTED;
}
}
if (m_nCurSegment != NO_SEGMENT) {
if (m_nSegBufferPos < m_nSegSize) {
int nSize = min(m_nSegSize - m_nSegBufferPos, lSampleLen);
SampleBuffer.ReadBuffer(m_pSegBuffer + m_nSegBufferPos, nSize);
m_nSegBufferPos += nSize;
}
if (m_nSegBufferPos >= m_nSegSize) {
CGolombBuffer SegmentBuffer(m_pSegBuffer, m_nSegSize);
switch (m_nCurSegment) {
case PALETTE:
TRACE_HDMVSUB( (_T("CHdmvSub:PALETTE rtStart=%10I64d\n"), rtStart) );
ParsePalette(&SegmentBuffer, m_nSegSize);
break;
case OBJECT:
TRACE_HDMVSUB( (_T("CHdmvSub:OBJECT %lS\n"), ReftimeToCString(rtStart)) );
ParseObject(&SegmentBuffer, m_nSegSize);
break;
case PRESENTATION_SEG:
TRACE_HDMVSUB( (_T("CHdmvSub:PRESENTATION_SEG %lS (size=%d)\n"), ReftimeToCString(rtStart), m_nSegSize) );
// Enqueue the current presentation segment if any
EnqueuePresentationSegment(rtStart);
// Parse the new presentation segment
ParsePresentationSegment(rtStart, &SegmentBuffer);
break;
case WINDOW_DEF:
//TRACE_HDMVSUB( (_T("CHdmvSub:WINDOW_DEF %lS\n"), ReftimeToCString(rtStart)) );
break;
case END_OF_DISPLAY:
//TRACE_HDMVSUB( (_T("CHdmvSub:END_OF_DISPLAY %lS\n"), ReftimeToCString(rtStart)) );
break;
default:
TRACE_HDMVSUB( (_T("CHdmvSub:UNKNOWN Seg %d rtStart=0x%10dd\n"), m_nCurSegment, rtStart) );
}
m_nCurSegment = NO_SEGMENT;
}
}
}
}
return hr;
}
HRESULT CHdmvSub::ParseSample(BYTE* pData, int lSampleLen, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop)
{
HRESULT hr = S_OK;
if (pData) {
CGolombBuffer SampleBuffer (pData, lSampleLen);
while (!SampleBuffer.IsEOF()) {
if (m_nCurSegment == NO_SEGMENT) {
HDMV_SEGMENT_TYPE nSegType = (HDMV_SEGMENT_TYPE)SampleBuffer.ReadByte();
USHORT nUnitSize = SampleBuffer.ReadShort();
lSampleLen -=3;
switch (nSegType) {
case PALETTE :
case OBJECT :
case PRESENTATION_SEG :
case END_OF_DISPLAY :
m_nCurSegment = nSegType;
AllocSegment(nUnitSize);
break;
case WINDOW_DEF :
case INTERACTIVE_SEG :
case HDMV_SUB1 :
case HDMV_SUB2 :
// Ignored stuff...
SampleBuffer.SkipBytes(nUnitSize);
break;
default :
return VFW_E_SAMPLE_REJECTED;
}
}
if (m_nCurSegment != NO_SEGMENT) {
if (m_nSegBufferPos < m_nSegSize) {
int nSize = min(m_nSegSize - m_nSegBufferPos, lSampleLen);
SampleBuffer.ReadBuffer(m_pSegBuffer + m_nSegBufferPos, nSize);
m_nSegBufferPos += nSize;
}
if (m_nSegBufferPos >= m_nSegSize) {
CGolombBuffer SegmentBuffer(m_pSegBuffer, m_nSegSize);
switch (m_nCurSegment) {
case PALETTE :
TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : PALETTE\n"));
ParsePalette(&SegmentBuffer, m_nSegSize);
break;
case OBJECT :
TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : OBJECT\n"));
ParseObject(&SegmentBuffer, m_nSegSize);
break;
case PRESENTATION_SEG :
TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : PRESENTATION_SEG = [%10I64d], %s, size = %d\n"), rtStart, ReftimeToString(rtStart), m_nSegSize);
ParsePresentationSegment(&SegmentBuffer, rtStart);
break;
case WINDOW_DEF :
//TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : WINDOW_DEF = %10I64d, %S\n"), rtStart, ReftimeToString(rtStart));
break;
case END_OF_DISPLAY :
//TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : END_OF_DISPLAY = %10I64d, %S\n"), rtStart, ReftimeToString(rtStart));
break;
default :
TRACE_HDMVSUB(_T("CHdmvSub::ParseSample() : UNKNOWN Seg [%d] = [%10I64d], %s\n"), m_nCurSegment, rtStart, ReftimeToString(rtStart));
}
m_nCurSegment = NO_SEGMENT;
}
}
}
}
return hr;
}
HRESULT CHdmvSub::ParseSample(IMediaSample* pSample)
{
CheckPointer (pSample, E_POINTER);
HRESULT hr;
REFERENCE_TIME rtStart = INVALID_TIME, rtStop = INVALID_TIME;
BYTE* pData = NULL;
int lSampleLen;
hr = pSample->GetPointer(&pData);
if(FAILED(hr) || pData == NULL) {
return hr;
}
lSampleLen = pSample->GetActualDataLength();
pSample->GetTime(&rtStart, &rtStop);
if (pData) {
CGolombBuffer SampleBuffer (pData, lSampleLen);
while (!SampleBuffer.IsEOF()) {
if (m_nCurSegment == NO_SEGMENT) {
HDMV_SEGMENT_TYPE nSegType = (HDMV_SEGMENT_TYPE)SampleBuffer.ReadByte();
USHORT nUnitSize = SampleBuffer.ReadShort();
lSampleLen -=3;
switch (nSegType) {
case PALETTE :
case OBJECT :
case PRESENTATION_SEG :
case END_OF_DISPLAY :
m_nCurSegment = nSegType;
AllocSegment (nUnitSize);
break;
case WINDOW_DEF :
case INTERACTIVE_SEG :
case HDMV_SUB1 :
case HDMV_SUB2 :
// Ignored stuff...
SampleBuffer.SkipBytes(nUnitSize);
break;
default :
return VFW_E_SAMPLE_REJECTED;
}
}
if (m_nCurSegment != NO_SEGMENT) {
if (m_nSegBufferPos < m_nSegSize) {
int nSize = min (m_nSegSize-m_nSegBufferPos, lSampleLen);
SampleBuffer.ReadBuffer (m_pSegBuffer+m_nSegBufferPos, nSize);
m_nSegBufferPos += nSize;
}
if (m_nSegBufferPos >= m_nSegSize) {
CGolombBuffer SegmentBuffer (m_pSegBuffer, m_nSegSize);
switch (m_nCurSegment) {
case PALETTE :
TRACE_HDMVSUB ("CHdmvSub:PALETTE rtStart=%10I64d\n", rtStart);
ParsePalette(&SegmentBuffer, m_nSegSize);
break;
case OBJECT :
//TRACE_HDMVSUB ("CHdmvSub:OBJECT %S\n", ReftimeToString(rtStart));
ParseObject(&SegmentBuffer, m_nSegSize);
break;
case PRESENTATION_SEG :
TRACE_HDMVSUB ("CHdmvSub:PRESENTATION_SEG %S (size=%d)\n", ReftimeToString(rtStart), m_nSegSize);
if (m_pCurrentObject) {
m_pCurrentObject->m_rtStop = rtStart;
m_pObjects.AddTail (m_pCurrentObject);
TRACE_HDMVSUB ("CHdmvSub:HDMV : %S => %S\n", ReftimeToString (m_pCurrentObject->m_rtStart), ReftimeToString(rtStart));
m_pCurrentObject = NULL;
}
if (ParsePresentationSegment(&SegmentBuffer) > 0) {
m_pCurrentObject->m_rtStart = rtStart;
m_pCurrentObject->m_rtStop = _I64_MAX;
}
break;
case WINDOW_DEF :
// TRACE_HDMVSUB ("CHdmvSub:WINDOW_DEF %S\n", ReftimeToString(rtStart));
break;
case END_OF_DISPLAY :
// TRACE_HDMVSUB ("CHdmvSub:END_OF_DISPLAY %S\n", ReftimeToString(rtStart));
break;
default :
TRACE_HDMVSUB ("CHdmvSub:UNKNOWN Seg %d rtStart=0x%10dd\n", m_nCurSegment, rtStart);
}
m_nCurSegment = NO_SEGMENT;
}
}
}
}
return hr;
}
HRESULT CPGSSub::ParseSample(REFERENCE_TIME rtStart, REFERENCE_TIME rtStop, BYTE* pData, size_t nLen)
{
CheckPointer(pData, E_POINTER);
CAutoLock cAutoLock(&m_csCritSec);
CGolombBuffer sampleBuffer(pData, nLen);
while (!sampleBuffer.IsEOF()) {
if (m_nCurSegment == NO_SEGMENT) {
HDMV_SEGMENT_TYPE nSegType = (HDMV_SEGMENT_TYPE)sampleBuffer.ReadByte();
unsigned short nUnitSize = sampleBuffer.ReadShort();
nLen -= 3;
switch (nSegType) {
case PALETTE:
case OBJECT:
case PRESENTATION_SEG:
case END_OF_DISPLAY:
m_nCurSegment = nSegType;
AllocSegment(nUnitSize);
break;
case WINDOW_DEF:
case INTERACTIVE_SEG:
case HDMV_SUB1:
case HDMV_SUB2:
// Ignored stuff...
sampleBuffer.SkipBytes(nUnitSize);
break;
default:
return VFW_E_SAMPLE_REJECTED;
}
}
if (m_nCurSegment != NO_SEGMENT) {
if (m_nSegBufferPos < m_nSegSize) {
size_t nSize = std::min(m_nSegSize - m_nSegBufferPos, nLen);
sampleBuffer.ReadBuffer(m_pSegBuffer + m_nSegBufferPos, nSize);
m_nSegBufferPos += nSize;
}
if (m_nSegBufferPos >= m_nSegSize) {
CGolombBuffer SegmentBuffer(m_pSegBuffer, m_nSegSize);
switch (m_nCurSegment) {
case PALETTE:
TRACE_PGSSUB(_T("CPGSSub:PALETTE %s\n"), ReftimeToString(rtStart));
ParsePalette(&SegmentBuffer, m_nSegSize);
break;
case OBJECT:
TRACE_PGSSUB(_T("CPGSSub:OBJECT %s\n"), ReftimeToString(rtStart));
ParseObject(&SegmentBuffer, m_nSegSize);
break;
case PRESENTATION_SEG:
TRACE_PGSSUB(_T("CPGSSub:PRESENTATION_SEG %s (size=%d)\n"), ReftimeToString(rtStart), m_nSegSize);
if (rtStart == INVALID_TIME) {
break;
}
// Update the timestamp for the previous segment
UpdateTimeStamp(rtStart);
// Parse the new presentation segment
ParsePresentationSegment(rtStart, &SegmentBuffer);
break;
case WINDOW_DEF:
//TRACE_PGSSUB(_T("CPGSSub:WINDOW_DEF %s\n"), ReftimeToString(rtStart));
break;
case END_OF_DISPLAY:
TRACE_PGSSUB(_T("CPGSSub:END_OF_DISPLAY %s\n"), ReftimeToString(rtStart));
// Enqueue the current presentation segment if any
EnqueuePresentationSegment();
break;
default:
TRACE_PGSSUB(_T("CPGSSub:UNKNOWN Seg %d %s\n"), m_nCurSegment, ReftimeToString(rtStart));
}
m_nCurSegment = NO_SEGMENT;
}
}
}
return S_OK;
}
