HRESULT CDVBSub::ParsePage(CGolombBuffer& gb, WORD wSegLength, CAutoPtr<DVB_PAGE>& pPage) { HRESULT hr = S_OK; WORD wEnd = (WORD)gb.GetPos() + wSegLength; int nPos = 0; pPage.Attach (DNew DVB_PAGE()); pPage->PageTimeOut = gb.ReadByte(); pPage->PageVersionNumber = (BYTE)gb.BitRead(4); pPage->PageState = (BYTE)gb.BitRead(2); pPage->RegionCount = 0; gb.BitRead(2); // Reserved while (gb.GetPos() < wEnd) { if (nPos < MAX_REGIONS) { pPage->Regions[nPos].Id = gb.ReadByte(); gb.ReadByte(); // Reserved pPage->Regions[nPos].HorizAddr = gb.ReadShort(); pPage->Regions[nPos].VertAddr = gb.ReadShort(); pPage->RegionCount++; } nPos++; } return S_OK; }
HRESULT CDVBSub::ParseClut(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = E_POINTER; if (m_pCurrentPage) { size_t nExpectedSize = 2; size_t nEnd = gb.GetPos() + wSegLength; BYTE id = gb.ReadByte(); POSITION posClut = FindClut(m_pCurrentPage, id); if (!posClut) { posClut = m_pCurrentPage->CLUTs.AddTail(CAutoPtr<DVB_CLUT>(DEBUG_NEW DVB_CLUT())); } const auto& pClut = m_pCurrentPage->CLUTs.GetAt(posClut); pClut->id = id; pClut->version_number = (BYTE)gb.BitRead(4); gb.BitRead(4); // Reserved pClut->size = 0; while (gb.GetPos() < nEnd) { nExpectedSize += 2; pClut->palette[pClut->size].entry_id = gb.ReadByte(); BYTE _2_bit = (BYTE)gb.BitRead(1); BYTE _4_bit = (BYTE)gb.BitRead(1); BYTE _8_bit = (BYTE)gb.BitRead(1); UNREFERENCED_PARAMETER(_2_bit); UNREFERENCED_PARAMETER(_4_bit); UNREFERENCED_PARAMETER(_8_bit); gb.BitRead(4); // Reserved if (gb.BitRead(1)) { nExpectedSize += 4; pClut->palette[pClut->size].Y = gb.ReadByte(); pClut->palette[pClut->size].Cr = gb.ReadByte(); pClut->palette[pClut->size].Cb = gb.ReadByte(); pClut->palette[pClut->size].T = 0xff - gb.ReadByte(); } else { nExpectedSize += 2; pClut->palette[pClut->size].Y = (BYTE)gb.BitRead(6) << 2; pClut->palette[pClut->size].Cr = (BYTE)gb.BitRead(4) << 4; pClut->palette[pClut->size].Cb = (BYTE)gb.BitRead(4) << 4; pClut->palette[pClut->size].T = 0xff - ((BYTE)gb.BitRead(2) << 6); } if (!pClut->palette[pClut->size].Y) { pClut->palette[pClut->size].Cr = 0; pClut->palette[pClut->size].Cb = 0; pClut->palette[pClut->size].T = 0; } pClut->size++; } hr = (wSegLength == nExpectedSize) ? S_OK : E_UNEXPECTED; } return hr; }
HRESULT CDVBSub::ParseClut(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = S_OK; int nEnd = gb.GetPos() + wSegLength; BYTE CLUT_id = gb.ReadByte(); if (m_pCurrentPage != NULL) { CDVBSub::DVB_CLUT DummyClut; CDVBSub::DVB_CLUT* pClut = FindClut(m_pCurrentPage, CLUT_id); if (pClut == NULL) { pClut = &DummyClut; } pClut->id = CLUT_id; pClut->version_number = (BYTE)gb.BitRead(4); gb.BitRead(4); // Reserved pClut->Size = 0; while (gb.GetPos() < nEnd) { BYTE entry_id = gb.ReadByte(); BYTE _2_bit = (BYTE)gb.BitRead(1); BYTE _4_bit = (BYTE)gb.BitRead(1); BYTE _8_bit = (BYTE)gb.BitRead(1); UNREFERENCED_PARAMETER(_2_bit); UNREFERENCED_PARAMETER(_4_bit); UNREFERENCED_PARAMETER(_8_bit); gb.BitRead(4); // Reserved pClut->Palette[entry_id].entry_id = entry_id; if (gb.BitRead(1)) { pClut->Palette[entry_id].Y = gb.ReadByte(); pClut->Palette[entry_id].Cr = gb.ReadByte(); pClut->Palette[entry_id].Cb = gb.ReadByte(); pClut->Palette[entry_id].T = 0xff-gb.ReadByte(); } else { pClut->Palette[entry_id].Y = (BYTE)gb.BitRead(6)<<2; pClut->Palette[entry_id].Cr = (BYTE)gb.BitRead(4)<<4; pClut->Palette[entry_id].Cb = (BYTE)gb.BitRead(4)<<4; pClut->Palette[entry_id].T = 0xff-((BYTE)gb.BitRead(2)<<6); } if (!pClut->Palette[entry_id].Y) { pClut->Palette[entry_id].Cr = 0; pClut->Palette[entry_id].Cb = 0; pClut->Palette[entry_id].T = 0; } pClut->Size = max (pClut->Size, entry_id + 1); } if (DummyClut.Size) { m_pCurrentPage->Clut.AddTail(DummyClut); } } return hr; }
HRESULT CDVBSub::ParseClut(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = E_FAIL; int nEnd = gb.GetPos() + wSegLength; if (m_pCurrentPage && wSegLength > 2) { DVB_CLUT* pClut = DNew DVB_CLUT(); if (pClut) { pClut->id = gb.ReadByte(); pClut->version_number = (BYTE)gb.BitRead(4); gb.BitRead(4); // Reserved pClut->size = 0; while (gb.GetPos() < nEnd) { BYTE entry_id = gb.ReadByte(); BYTE _2_bit = (BYTE)gb.BitRead(1); BYTE _4_bit = (BYTE)gb.BitRead(1); BYTE _8_bit = (BYTE)gb.BitRead(1); UNREFERENCED_PARAMETER(_2_bit); UNREFERENCED_PARAMETER(_4_bit); UNREFERENCED_PARAMETER(_8_bit); gb.BitRead(4); // Reserved pClut->palette[entry_id].entry_id = entry_id; if (gb.BitRead(1)) { pClut->palette[entry_id].Y = gb.ReadByte(); pClut->palette[entry_id].Cr = gb.ReadByte(); pClut->palette[entry_id].Cb = gb.ReadByte(); pClut->palette[entry_id].T = 0xff - gb.ReadByte(); } else { pClut->palette[entry_id].Y = (BYTE)gb.BitRead(6) << 2; pClut->palette[entry_id].Cr = (BYTE)gb.BitRead(4) << 4; pClut->palette[entry_id].Cb = (BYTE)gb.BitRead(4) << 4; pClut->palette[entry_id].T = 0xff - ((BYTE)gb.BitRead(2) << 6); } if (!pClut->palette[entry_id].Y) { pClut->palette[entry_id].Cr = 0; pClut->palette[entry_id].Cb = 0; pClut->palette[entry_id].T = 0; } if (pClut->size <= entry_id) { pClut->size = entry_id + 1; } } m_pCurrentPage->CLUTs.AddTail(pClut); hr = S_OK; } else { hr = E_OUTOFMEMORY; } } return hr; }
HRESULT CDVBSub::ParseRegion(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = E_POINTER; if (m_pCurrentPage) { size_t nExpectedSize = 10; size_t nEnd = gb.GetPos() + wSegLength; BYTE id = gb.ReadByte(); POSITION posRegion = FindRegion(m_pCurrentPage, id); if (!posRegion) { posRegion = m_pCurrentPage->regions.AddTail(CAutoPtr<DVB_REGION>(DEBUG_NEW DVB_REGION())); } const auto& pRegion = m_pCurrentPage->regions.GetAt(posRegion); pRegion->id = id; pRegion->version_number = (BYTE)gb.BitRead(4); pRegion->fill_flag = (BYTE)gb.BitRead(1); gb.BitRead(3); // Reserved pRegion->width = gb.ReadShort(); pRegion->height = gb.ReadShort(); pRegion->level_of_compatibility = (BYTE)gb.BitRead(3); pRegion->depth = (BYTE)gb.BitRead(3); gb.BitRead(2); // Reserved pRegion->CLUT_id = gb.ReadByte(); pRegion->_8_bit_pixel_code = gb.ReadByte(); pRegion->_4_bit_pixel_code = (BYTE)gb.BitRead(4); pRegion->_2_bit_pixel_code = (BYTE)gb.BitRead(2); gb.BitRead(2); // Reserved while (gb.GetPos() < nEnd) { nExpectedSize += 6; DVB_OBJECT object; object.object_id = gb.ReadShort(); object.object_type = (BYTE)gb.BitRead(2); object.object_provider_flag = (BYTE)gb.BitRead(2); object.object_horizontal_position = (short)gb.BitRead(12); gb.BitRead(4); // Reserved object.object_vertical_position = (short)gb.BitRead(12); if (object.object_type == 0x01 || object.object_type == 0x02) { nExpectedSize += 2; object.foreground_pixel_code = gb.ReadByte(); object.background_pixel_code = gb.ReadByte(); } pRegion->objects.AddTail(object); } hr = (wSegLength == nExpectedSize) ? S_OK : E_UNEXPECTED; } return hr; }
HRESULT CDVBSub::ParseRegion(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = S_OK; WORD wEnd = (WORD)gb.GetPos() + wSegLength; CDVBSub::DVB_REGION* pRegion; CDVBSub::DVB_REGION DummyRegion; pRegion = FindRegion (m_pCurrentPage, gb.ReadByte()); if (pRegion == NULL) pRegion = &DummyRegion; if (pRegion != NULL) { pRegion->version_number = (BYTE)gb.BitRead(4); pRegion->fill_flag = (BYTE)gb.BitRead(1); gb.BitRead(3); // Reserved pRegion->width = gb.ReadShort(); pRegion->height = gb.ReadShort(); pRegion->level_of_compatibility = (BYTE)gb.BitRead(3); pRegion->depth = (BYTE)gb.BitRead(3); gb.BitRead(2); // Reserved pRegion->CLUT_id = gb.ReadByte(); pRegion->_8_bit_pixel_code = gb.ReadByte(); pRegion->_4_bit_pixel_code = (BYTE)gb.BitRead(4); pRegion->_2_bit_pixel_code = (BYTE)gb.BitRead(2); gb.BitRead(2); // Reserved pRegion->ObjectCount = 0; while (gb.GetPos() < wEnd) { DVB_OBJECT* pObject = &pRegion->Objects[pRegion->ObjectCount]; pObject->object_id = gb.ReadShort(); pObject->object_type = (BYTE)gb.BitRead(2); pObject->object_provider_flag = (BYTE)gb.BitRead(2); pObject->object_horizontal_position = (SHORT)gb.BitRead(12); gb.BitRead(4); // Reserved pObject->object_vertical_position = (SHORT)gb.BitRead(12); if (pObject->object_type == 0x01 || pObject->object_type == 0x02) { pObject->foreground_pixel_code = gb.ReadByte(); pObject->background_pixel_code = gb.ReadByte(); } pRegion->ObjectCount++; } } else gb.SkipBytes (wSegLength-1); return S_OK; }
void CompositionObject::Dvb8PixelsCodeString(SubPicDesc& spd, CGolombBuffer& gb, SHORT& nX, SHORT& nY) { BYTE bTemp; BYTE nPaletteIndex = 0; SHORT nCount; bool bQuit = false; while(!bQuit && !gb.IsEOF()) { nCount = 0; nPaletteIndex = 0; bTemp = gb.ReadByte(); if(bTemp != 0) { nPaletteIndex = bTemp; nCount = 1; } else { if(gb.BitRead(1) == 0) // switch_1 { nCount = (SHORT)gb.BitRead(7); // run_length_1-127 if(nCount == 0) bQuit = true; } else { nCount = (SHORT)gb.BitRead(7); // run_length_3-127 nPaletteIndex = gb.ReadByte(); } } if(nX + nCount > m_width) { ASSERT(FALSE); break; } if(nCount > 0) { FillSolidRect(spd, nX, nY, nCount, 1, m_Colors[nPaletteIndex]); nX += nCount; } } gb.BitByteAlign(); }
void CompositionObject::Dvb4PixelsCodeString(SubPicDesc& spd, CGolombBuffer& gb, short& nX, short& nY) { bool bQuit = false; while (!bQuit && !gb.IsEOF()) { short nCount = 0; BYTE nPaletteIndex = 0; BYTE bTemp = (BYTE)gb.BitRead(4); if (bTemp != 0) { nPaletteIndex = bTemp; nCount = 1; } else { if (gb.BitRead(1) == 0) { // switch_1 nCount = (short)gb.BitRead(3); // run_length_3-9 if (nCount != 0) { nCount += 2; } else { bQuit = true; } } else { if (gb.BitRead(1) == 0) { // switch_2 nCount = 4 + (short)gb.BitRead(2); // run_length_4-7 nPaletteIndex = (BYTE)gb.BitRead(4); // 4-bit_pixel-code } else { switch (gb.BitRead(2)) { // switch_3 case 0: nCount = 1; break; case 1: nCount = 2; break; case 2: // if (switch_3 == '10') nCount = 9 + (short)gb.BitRead(4); // run_length_9-24 nPaletteIndex = (BYTE)gb.BitRead(4); // 4-bit_pixel-code break; case 3: nCount = 25 + gb.ReadByte(); // run_length_25-280 nPaletteIndex = (BYTE)gb.BitRead(4); // 4-bit_pixel-code break; } } } } #if 0 if (nX + nCount > m_width) { ASSERT(FALSE); break; } #endif if (nCount > 0) { FillSolidRect(spd, nX, nY, nCount, 1, m_Colors[nPaletteIndex]); nX += nCount; } } gb.BitByteAlign(); }
HRESULT CDVBSub::ParseClut(CGolombBuffer& gb, WORD wSegLength) { HRESULT hr = S_OK; WORD wEnd = (WORD)gb.GetPos() + wSegLength; CDVBSub::DVB_CLUT* pClut; pClut = FindClut (m_pCurrentPage, gb.ReadByte()); // ASSERT (pClut != NULL); if (pClut != NULL) { pClut->version_number = (BYTE)gb.BitRead(4); gb.BitRead(4); // Reserved pClut->Size = 0; while (gb.GetPos() < wEnd) { BYTE entry_id = gb.ReadByte()+1; BYTE _2_bit = (BYTE)gb.BitRead(1); BYTE _4_bit = (BYTE)gb.BitRead(1); BYTE _8_bit = (BYTE)gb.BitRead(1); gb.BitRead(4); // Reserved pClut->Palette[entry_id].entry_id = entry_id; if (gb.BitRead(1)) { pClut->Palette[entry_id].Y = gb.ReadByte(); pClut->Palette[entry_id].Cr = gb.ReadByte(); pClut->Palette[entry_id].Cb = gb.ReadByte(); pClut->Palette[entry_id].T = 255-gb.ReadByte(); } else { pClut->Palette[entry_id].Y = (BYTE)gb.BitRead(6)<<2; pClut->Palette[entry_id].Cr = (BYTE)gb.BitRead(4)<<4; pClut->Palette[entry_id].Cb = (BYTE)gb.BitRead(4)<<4; pClut->Palette[entry_id].T = 255-((BYTE)gb.BitRead(2)<<6); } pClut->Size = max (pClut->Size, entry_id); } } return hr; }
void CompositionObject::Dvb2PixelsCodeString(SubPicDesc& spd, CGolombBuffer& gb, short& nX, short& nY) { BYTE bTemp; BYTE nPaletteIndex = 0; short nCount; bool bQuit = false; while (!bQuit && !gb.IsEOF()) { nCount = 0; nPaletteIndex = 0; bTemp = (BYTE)gb.BitRead(2); if (bTemp != 0) { nPaletteIndex = bTemp; nCount = 1; } else { if (gb.BitRead(1) == 1) { // switch_1 nCount = 3 + (short)gb.BitRead(3); // run_length_3-9 nPaletteIndex = (BYTE)gb.BitRead(2); } else { if (gb.BitRead(1) == 0) { // switch_2 switch (gb.BitRead(2)) { // switch_3 case 0: bQuit = true; break; case 1: nCount = 2; break; case 2: // if (switch_3 == '10') nCount = 12 + (short)gb.BitRead(4); // run_length_12-27 nPaletteIndex = (BYTE)gb.BitRead(2); // 4-bit_pixel-code break; case 3: nCount = 29 + gb.ReadByte(); // run_length_29-284 nPaletteIndex = (BYTE)gb.BitRead(2); // 4-bit_pixel-code break; } } else { nCount = 1; } } } if (nX + nCount > m_width) { ASSERT(FALSE); break; } if (nCount > 0) { FillSolidRect(spd, nX, nY, nCount, 1, m_Colors[nPaletteIndex]); nX += nCount; } } gb.BitByteAlign(); }
HRESULT CDVBSub::ParsePage(CGolombBuffer& gb, WORD wSegLength, CAutoPtr<DVB_PAGE>& pPage) { size_t nExpectedSize = 2; size_t nEnd = gb.GetPos() + wSegLength; pPage = CAutoPtr<DVB_PAGE>(DEBUG_NEW DVB_PAGE()); pPage->pageTimeOut = gb.ReadByte(); pPage->pageVersionNumber = (BYTE)gb.BitRead(4); pPage->pageState = (BYTE)gb.BitRead(2); gb.BitRead(2); // Reserved while (gb.GetPos() < nEnd) { nExpectedSize += 6; DVB_REGION_POS regionPos; regionPos.id = gb.ReadByte(); gb.ReadByte(); // Reserved regionPos.horizAddr = gb.ReadShort(); regionPos.vertAddr = gb.ReadShort(); pPage->regionsPos.AddTail(regionPos); } return (wSegLength == nExpectedSize) ? S_OK : E_UNEXPECTED; }
void CompositionObject::DvbRenderField(SubPicDesc& spd, CGolombBuffer& gb, SHORT nXStart, SHORT nYStart, SHORT nLength) { //FillSolidRect (spd, 0, 0, 300, 10, 0xFFFF0000); // Red opaque //FillSolidRect (spd, 0, 10, 300, 10, 0xCC00FF00); // Green 80% //FillSolidRect (spd, 0, 20, 300, 10, 0x100000FF); // Blue 60% //return; SHORT nX = nXStart; SHORT nY = nYStart; INT64 nEnd = gb.GetPos() + nLength; while(gb.GetPos() < nEnd) { BYTE bType = gb.ReadByte(); switch(bType) { case 0x10 : Dvb2PixelsCodeString(spd, gb, nX, nY); break; case 0x11 : Dvb4PixelsCodeString(spd, gb, nX, nY); break; case 0x12 : Dvb8PixelsCodeString(spd, gb, nX, nY); break; case 0x20 : gb.SkipBytes(2); break; case 0x21 : gb.SkipBytes(4); break; case 0x22 : gb.SkipBytes(16); break; case 0xF0 : nX = nXStart; nY += 2; break; default : ASSERT(FALSE); break; } } }
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 CDVBSub::ParseSample (IMediaSample* pSample) { CheckPointer (pSample, E_POINTER); HRESULT hr; BYTE* pData = NULL; int nSize; DVB_SEGMENT_TYPE nCurSegment; hr = pSample->GetPointer(&pData); if(FAILED(hr) || pData == NULL) { return hr; } nSize = pSample->GetActualDataLength(); if (*((LONG*)pData) == 0xBD010000) { CGolombBuffer gb (pData, nSize); gb.SkipBytes(4); WORD wLength = (WORD)gb.BitRead(16); UNUSED_ALWAYS(wLength); if (gb.BitRead(2) != 2) { return E_FAIL; // type } gb.BitRead(2); // scrambling gb.BitRead(1); // priority gb.BitRead(1); // alignment gb.BitRead(1); // copyright gb.BitRead(1); // original BYTE fpts = (BYTE)gb.BitRead(1); // fpts BYTE fdts = (BYTE)gb.BitRead(1); // fdts gb.BitRead(1); // escr gb.BitRead(1); // esrate gb.BitRead(1); // dsmtrickmode gb.BitRead(1); // morecopyright gb.BitRead(1); // crc gb.BitRead(1); // extension gb.BitRead(8); // hdrlen if(fpts) { BYTE b = (BYTE)gb.BitRead(4); if(!(fdts && b == 3 || !fdts && b == 2)) { ASSERT(0); return(E_FAIL); } REFERENCE_TIME pts = 0; pts |= gb.BitRead(3) << 30; MARKER; // 32..30 pts |= gb.BitRead(15) << 15; MARKER; // 29..15 pts |= gb.BitRead(15); MARKER; // 14..0 pts = 10000*pts/90; m_rtStart = pts; m_rtStop = pts+1; } else { m_rtStart = INVALID_TIME; m_rtStop = INVALID_TIME; } nSize -= 14; pData += 14; pSample->GetTime(&m_rtStart, &m_rtStop); pSample->GetMediaTime(&m_rtStart, &m_rtStop); } else if (SUCCEEDED (pSample->GetTime(&m_rtStart, &m_rtStop))) { pSample->SetTime(&m_rtStart, &m_rtStop); } //FILE* hFile = fopen ("D:\\Sources\\mpc-hc\\A garder\\TestSubRip\\dvbsub.dat", "ab"); //if(hFile != NULL) //{ // //BYTE Buff[5] = {48}; // //*((DWORD*)(Buff+1)) = lSampleLen; // //fwrite (Buff, 1, sizeof(Buff), hFile); // fwrite (pData, 1, lSampleLen, hFile); // fclose(hFile); //} if (AddToBuffer (pData, nSize) == S_OK) { CGolombBuffer gb (m_pBuffer+m_nBufferReadPos, m_nBufferWritePos-m_nBufferReadPos); int nLastPos = 0; while (!gb.IsEOF()) { if (gb.ReadByte() == 0x0F) { WORD wPageId; WORD wSegLength; nCurSegment = (DVB_SEGMENT_TYPE) gb.ReadByte(); wPageId = gb.ReadShort(); wSegLength = gb.ReadShort(); if (gb.RemainingSize() < wSegLength) { hr = S_FALSE; break; } switch (nCurSegment) { case PAGE : { CAutoPtr<DVB_PAGE> pPage; ParsePage(gb, wSegLength, pPage); if (pPage->PageState == DPS_ACQUISITION) { m_pCurrentPage = pPage; m_pCurrentPage->rtStart = m_rtStart; TRACE_DVB ("DVB - Page started %S\n", ReftimeToString(m_rtStart)); m_rtStart = INVALID_TIME; } else { TRACE_DVB ("DVB - Page update\n"); } } break; case REGION : ParseRegion(gb, wSegLength); TRACE_DVB ("DVB - Region\n"); break; case CLUT : ParseClut(gb, wSegLength); TRACE_DVB ("DVB - Clut \n"); break; case OBJECT : ParseObject(gb, wSegLength); TRACE_DVB ("DVB - Object\n"); break; case DISPLAY : ParseDisplay(gb, wSegLength); break; case END_OF_DISPLAY : if (m_pCurrentPage != NULL && m_rtStart != INVALID_TIME) { m_pCurrentPage->rtStop = m_rtStart; TRACE_DVB ("DVB - End display %S - %S\n", ReftimeToString(m_pCurrentPage->rtStart), ReftimeToString(m_pCurrentPage->rtStop)); m_Pages.AddTail (m_pCurrentPage.Detach()); } break; default : // gb.SkipBytes(wSegLength); break; } nLastPos = gb.GetPos(); } } m_nBufferReadPos += nLastPos; } 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 CDVBSub::ParseSample(IMediaSample* pSample) { CheckPointer (pSample, E_POINTER); HRESULT hr; BYTE* pData = NULL; int nSize; DVB_SEGMENT_TYPE nCurSegment; hr = pSample->GetPointer(&pData); if (FAILED(hr) || pData == NULL) { return hr; } nSize = pSample->GetActualDataLength(); if (*((LONG*)pData) == 0xBD010000) { CGolombBuffer gb (pData, nSize); gb.SkipBytes(4); WORD wLength = (WORD)gb.BitRead(16); UNREFERENCED_PARAMETER(wLength); if (gb.BitRead(2) != 2) { return E_FAIL; // type } gb.BitRead(2); // scrambling gb.BitRead(1); // priority gb.BitRead(1); // alignment gb.BitRead(1); // copyright gb.BitRead(1); // original BYTE fpts = (BYTE)gb.BitRead(1); // fpts BYTE fdts = (BYTE)gb.BitRead(1); // fdts gb.BitRead(1); // escr gb.BitRead(1); // esrate gb.BitRead(1); // dsmtrickmode gb.BitRead(1); // morecopyright gb.BitRead(1); // crc gb.BitRead(1); // extension gb.BitRead(8); // hdrlen if (fpts) { BYTE b = (BYTE)gb.BitRead(4); if (!(fdts && b == 3 || !fdts && b == 2)) { ASSERT(0); return(E_FAIL); } REFERENCE_TIME pts = 0; pts |= gb.BitRead(3) << 30; MARKER; // 32..30 pts |= gb.BitRead(15) << 15; MARKER; // 29..15 pts |= gb.BitRead(15); MARKER; // 14..0 pts = 10000*pts/90; m_rtStart = pts; m_rtStop = pts+1; } else { m_rtStart = INVALID_TIME; m_rtStop = INVALID_TIME; } nSize -= 14; pData += 14; pSample->GetTime(&m_rtStart, &m_rtStop); pSample->GetMediaTime(&m_rtStart, &m_rtStop); } else if (SUCCEEDED (pSample->GetTime(&m_rtStart, &m_rtStop))) { pSample->SetTime(&m_rtStart, &m_rtStop); } if (AddToBuffer (pData, nSize) == S_OK) { CGolombBuffer gb (m_pBuffer+m_nBufferReadPos, m_nBufferWritePos-m_nBufferReadPos); int nLastPos = 0; while (!gb.IsEOF()) { if (gb.ReadByte() == 0x0F) { WORD wPageId; WORD wSegLength; nCurSegment = (DVB_SEGMENT_TYPE) gb.ReadByte(); wPageId = gb.ReadShort(); wSegLength = gb.ReadShort(); if (gb.RemainingSize() < wSegLength) { hr = S_FALSE; break; } TRACE_DVB (_T("DVB - ParseSample, Segment = [%ws], PageId = [%d], SegLength/Buffer = [%d]/[%d]\n"), GetSegmentType(nCurSegment), wPageId, wSegLength, gb.RemainingSize()); switch (nCurSegment) { case PAGE : { CAutoPtr<DVB_PAGE> pPage; ParsePage(gb, wSegLength, pPage); if (pPage->PageState == DPS_ACQUISITION || pPage->PageState == DPS_MODE) { TRACE_DVB (_T("DVB - Page start\n")); if (m_pCurrentPage != NULL) { m_pCurrentPage->rtStop = min(m_pCurrentPage->rtStop, m_rtStart); TRACE_DVB (_T("DVB - store Page : %ws => %ws\n"), ReftimeToString(m_pCurrentPage->rtStart), ReftimeToString(m_pCurrentPage->rtStop)); m_Pages.AddTail (m_pCurrentPage.Detach()); } UpdateTimeStamp(m_rtStart); m_pCurrentPage = pPage; m_pCurrentPage->rtStart = m_rtStart; m_pCurrentPage->rtStop = m_pCurrentPage->rtStart + m_pCurrentPage->PageTimeOut * UNITS; // TODO - need to limit the duration of the segment TRACE_DVB (_T("DVB - Page started : %ws, TimeOut = %d\n"), ReftimeToString(m_pCurrentPage->rtStart), m_pCurrentPage->PageTimeOut); } else if (pPage->PageState == DPS_NORMAL) { TRACE_DVB (_T("DVB - Page update\n")); if (m_pCurrentPage && !m_pCurrentPage->RegionCount && pPage->RegionCount) { m_pCurrentPage = pPage; m_pCurrentPage->rtStart = m_rtStart; m_pCurrentPage->rtStop = m_pCurrentPage->rtStart + m_pCurrentPage->PageTimeOut * UNITS; // TODO - need to limit the duration of the segment TRACE_DVB (_T("DVB - Page started[update] : %ws, TimeOut = %d\n"), ReftimeToString(m_pCurrentPage->rtStart), m_pCurrentPage->PageTimeOut); } } } break; case REGION : ParseRegion(gb, wSegLength); TRACE_DVB (_T("DVB - Region\n")); break; case CLUT : ParseClut(gb, wSegLength); TRACE_DVB (_T("DVB - Clut\n")); break; case OBJECT : ParseObject(gb, wSegLength); TRACE_DVB (_T("DVB - Object\n")); break; case DISPLAY : ParseDisplay(gb, wSegLength); TRACE_DVB (_T("DVB - Display\n")); break; case END_OF_DISPLAY : /* if (m_pCurrentPage != NULL && (m_pCurrentPage->rtStart != m_rtStart)) { m_pCurrentPage->rtStop = max(m_pCurrentPage->rtStop, m_rtStart); TRACE_DVB (_T("DVB - End display : %ws => %ws\n"), ReftimeToString(m_pCurrentPage->rtStart), ReftimeToString(m_pCurrentPage->rtStop)); m_Pages.AddTail (m_pCurrentPage.Detach()); } */ TRACE_DVB (_T("DVB - End display\n")); break; default : TRACE_DVB (_T("DVB - unknown Segment\n")); break; } nLastPos = gb.GetPos(); } } m_nBufferReadPos += nLastPos; } return hr; }