AVI2AC3Filter.cpp
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上传日期:2015-12-05
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文件大小:15k
- /*
- * Copyright (C) 2003-2005 Gabest
- * http://www.gabest.org
- *
- * This Program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This Program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Make; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- */
- #include "stdafx.h"
- #include <atlbase.h>
- #include "avi2ac3filter.h"
- #include "......DSUtilDSUtil.h"
- #include <initguid.h>
- #include "........includemoreuuids.h"
- #ifdef REGISTER_FILTER
- const AMOVIESETUP_MEDIATYPE sudPinTypesIn[] =
- {
- {&MEDIATYPE_Audio, &MEDIASUBTYPE_WAVE_DOLBY_AC3},
- {&MEDIATYPE_Audio, &MEDIASUBTYPE_WAVE_DTS},
- };
- const AMOVIESETUP_MEDIATYPE sudPinTypesOut[] =
- {
- {&MEDIATYPE_Audio, &MEDIASUBTYPE_NULL},
- };
- const AMOVIESETUP_PIN sudpPins[] =
- {
- {L"Input", FALSE, FALSE, FALSE, FALSE, &CLSID_NULL, NULL, countof(sudPinTypesIn), sudPinTypesIn},
- {L"Output", FALSE, TRUE, FALSE, FALSE, &CLSID_NULL, NULL, countof(sudPinTypesOut), sudPinTypesOut}
- };
- const AMOVIESETUP_FILTER sudFilter[] =
- {
- {&__uuidof(CAVI2AC3Filter), L"AVI<->AC3/DTS", MERIT_UNLIKELY, countof(sudpPins), sudpPins}
- };
- CFactoryTemplate g_Templates[] =
- {
- {sudFilter[0].strName, sudFilter[0].clsID, CreateInstance<CAVI2AC3Filter>, NULL, &sudFilter[0]}
- };
- int g_cTemplates = countof(g_Templates);
- STDAPI DllRegisterServer()
- {
- return AMovieDllRegisterServer2(TRUE);
- }
- STDAPI DllUnregisterServer()
- {
- return AMovieDllRegisterServer2(FALSE);
- }
- extern "C" BOOL WINAPI DllEntryPoint(HINSTANCE, ULONG, LPVOID);
- BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, LPVOID lpReserved)
- {
- return DllEntryPoint((HINSTANCE)hModule, dwReason, 0); // "DllMain" of the dshow baseclasses;
- }
- #endif
- //
- // CAVI2AC3Filter
- //
- CAVI2AC3Filter::CAVI2AC3Filter(LPUNKNOWN lpunk, HRESULT* phr)
- : CTransformFilter(NAME("CAVI2AC3Filter"), lpunk, __uuidof(this))
- {
- if(phr) *phr = S_OK;
- }
- CAVI2AC3Filter::~CAVI2AC3Filter()
- {
- }
- HRESULT CAVI2AC3Filter::Transform(IMediaSample* pSample, IMediaSample* pOutSample)
- {
- HRESULT hr;
- BYTE* pIn = NULL;
- if(FAILED(hr = pSample->GetPointer(&pIn))) return hr;
- BYTE* pInOrg = pIn;
- long len = pSample->GetActualDataLength();
- if(len <= 0) return S_FALSE;
- BYTE* pOut = NULL;
- if(FAILED(hr = pOutSample->GetPointer(&pOut))) return hr;
- BYTE* pOutOrg = pOut;
- int size = pOutSample->GetSize();
- if((CheckAC3(&m_pInput->CurrentMediaType()) || CheckDTS(&m_pInput->CurrentMediaType()))
- && (CheckWAVEAC3(&m_pOutput->CurrentMediaType()) || CheckWAVEDTS(&m_pOutput->CurrentMediaType())))
- {
- if(*(DWORD*)pIn == 0xBA010000)
- {
- pIn += 14;
- }
- if(*(DWORD*)pIn == 0xBD010000)
- {
- pIn += 8 + 1 + pIn[8] + 1 + 3;
- }
- len -= (pInOrg - pIn);
- if(size < len) return E_FAIL;
- memcpy(pOut, pIn, len);
- pOut += len;
- }
- else if((CheckWAVEAC3(&m_pInput->CurrentMediaType()) || CheckWAVEDTS(&m_pInput->CurrentMediaType()))
- && (CheckAC3(&m_pOutput->CurrentMediaType()) || CheckDTS(&m_pOutput->CurrentMediaType())))
- {
- if((m_pOutput->CurrentMediaType().majortype == MEDIATYPE_DVD_ENCRYPTED_PACK
- || m_pOutput->CurrentMediaType().majortype == MEDIATYPE_MPEG2_PES)
- && (len + 12 + 3) >= 0x10000) // damn, this can happen if the interleave time is too big
- {
- REFERENCE_TIME rtStart = 0, rtStop = 1;
- bool fHasTime = (S_OK == pSample->GetTime(&rtStart, &rtStop));
- bool fDiscontinuity = (S_OK == pOutSample->IsDiscontinuity());
- int pos = 0;
- while(pos < len)
- {
- int curlen = min(len - pos, 2013);
- pos += 2013;
- CComPtr<IMediaSample> pOutSample;
- hr = InitializeOutputSample(pSample, &pOutSample);
- if(fDiscontinuity)
- {
- if(fHasTime)
- {
- rtStop = rtStart + (rtStop - rtStart) * curlen / len;
- pOutSample->SetTime(&rtStart, &rtStop);
- }
- fDiscontinuity = false;
- }
- else
- {
- pOutSample->SetTime(NULL, NULL);
- pOutSample->SetDiscontinuity(FALSE);
- }
- BYTE* pOut = NULL;
- if(FAILED(hr = pOutSample->GetPointer(&pOut))) return hr;
- BYTE* pOutOrg = pOut;
- int size = pOutSample->GetSize();
- const GUID* majortype = &m_pOutput->CurrentMediaType().majortype;
- const GUID* subtype = &m_pOutput->CurrentMediaType().subtype;
- if(*majortype == MEDIATYPE_DVD_ENCRYPTED_PACK)
- {
- if(size < curlen + 32 + 3) return E_FAIL;
- BYTE PESHeader[] =
- {
- 0x00,0x00,0x01,0xBA, // PES id
- 0x44,0x00,0x04,0x00,0x04,0x01, // SCR (0)
- 0x01,0x89,0xC3,0xF8, // mux rate (1260000 bytes/sec, 22bits), marker (2bits), reserved (~0, 5bits), stuffing (0, 3bits)
- };
- memcpy(pOut, &PESHeader, sizeof(PESHeader));
- pOut += sizeof(PESHeader);
- majortype = &MEDIATYPE_MPEG2_PES;
- }
- if(*majortype == MEDIATYPE_MPEG2_PES)
- {
- if(size < curlen + 20 + 3) return E_FAIL;
- BYTE Private1Header[] =
- {
- 0x00,0x00,0x01,0xBD, // private stream 1 id
- 0x07,0xEC, // packet length (TODO: modify it later)
- 0x81,0x80, // marker, original, PTS - flags
- 0x08, // packet data starting offset
- 0x21,0x00,0x01,0x00,0x01, // PTS (0)
- 0xFF,0xFF,0xFF, // stuffing
- 0x80, // stream id (0)
- 0x01,0x00,0x01, // no idea about the first byte, the sencond+third seem to show the ac3/dts header sync offset plus one (dvd2avi doesn't output it to the ac3/dts file so we have to put it back)
- };
- int packetlen = curlen + 12 + 3;
- ASSERT(packetlen <= 0xffff);
- Private1Header[4] = (packetlen>>8)&0xff;
- Private1Header[5] = packetlen&0xff;
- if(*subtype == MEDIASUBTYPE_DTS)
- {
- Private1Header[17] += 8;
- }
- if(*subtype == MEDIASUBTYPE_DOLBY_AC3)
- {
- for(int i = 0; i < curlen; i++)
- {
- if(*(DWORD*)&pIn[i] == 0x770B)
- {
- i++;
- Private1Header[19] = (i>>8)&0xff;
- Private1Header[20] = i&0xff;
- break;
- }
- }
- }
- else if(*subtype == MEDIASUBTYPE_DTS)
- {
- for(int i = 0; i < curlen; i++)
- {
- if(*(DWORD*)&pIn[i] == 0x0180FE7F)
- {
- i++;
- Private1Header[19] = (i>>8)&0xff;
- Private1Header[20] = i&0xff;
- break;
- }
- }
- }
- memcpy(pOut, &Private1Header, sizeof(Private1Header));
- pOut += sizeof(Private1Header);
- majortype = &MEDIATYPE_Audio;
- }
- if(*majortype == MEDIATYPE_Audio)
- {
- if(size < curlen) return E_FAIL;
- memcpy(pOut, pIn, curlen);
- pIn += curlen;
- pOut += curlen;
- }
- pOutSample->SetActualDataLength(pOut - pOutOrg);
- hr = m_pOutput->Deliver(pOutSample);
- }
- return S_FALSE;
- }
- else // phew, we can do the easier way
- {
- const GUID* majortype = &m_pOutput->CurrentMediaType().majortype;
- const GUID* subtype = &m_pOutput->CurrentMediaType().subtype;
- if(*majortype == MEDIATYPE_DVD_ENCRYPTED_PACK)
- {
- if(size < len + 32 + 3) return E_FAIL;
- BYTE PESHeader[] =
- {
- 0x00,0x00,0x01,0xBA, // PES id
- 0x44,0x00,0x04,0x00,0x04,0x01, // SCR (0)
- 0x01,0x89,0xC3,0xF8, // mux rate (1260000 bytes/sec, 22bits), marker (2bits), reserved (~0, 5bits), stuffing (0, 3bits)
- };
- memcpy(pOut, &PESHeader, sizeof(PESHeader));
- pOut += sizeof(PESHeader);
- majortype = &MEDIATYPE_MPEG2_PES;
- }
- if(*majortype == MEDIATYPE_MPEG2_PES)
- {
- if(size < len + 20 + 3) return E_FAIL;
- BYTE Private1Header[] =
- {
- 0x00,0x00,0x01,0xBD, // private stream 1 id
- 0x07,0xEC, // packet length (TODO: modify it later)
- 0x81,0x80, // marker, original, PTS - flags
- 0x08, // packet data starting offset
- 0x21,0x00,0x01,0x00,0x01, // PTS (0)
- 0xFF,0xFF,0xFF, // stuffing
- 0x80, // stream id (0)
- 0x01,0x00,0x01, // no idea about the first byte, the sencond+third seem to show the ac3/dts header sync offset plus one (dvd2avi doesn't output it to the ac3/dts file so we have to put it back)
- };
- int packetlen = len + 12 + 3;
- ASSERT(packetlen <= 0xffff);
- Private1Header[4] = (packetlen>>8)&0xff;
- Private1Header[5] = packetlen&0xff;
- if(*subtype == MEDIASUBTYPE_DTS)
- {
- Private1Header[17] += 8;
- }
- memcpy(pOut, &Private1Header, sizeof(Private1Header));
- pOut += sizeof(Private1Header);
- majortype = &MEDIATYPE_Audio;
- }
- if(*majortype == MEDIATYPE_Audio)
- {
- if(size < len) return E_FAIL;
- memcpy(pOut, pIn, len);
- pIn += len;
- pOut += len;
- }
- }
- }
- else
- {
- return E_FAIL;
- }
- pOutSample->SetActualDataLength(pOut - pOutOrg);
- return S_OK;
- }
- bool CAVI2AC3Filter::CheckAC3(const CMediaType* pmt)
- {
- return (pmt->majortype == MEDIATYPE_Audio
- || pmt->majortype == MEDIATYPE_MPEG2_PES
- || pmt->majortype == MEDIATYPE_DVD_ENCRYPTED_PACK)
- && pmt->subtype == MEDIASUBTYPE_DOLBY_AC3;
- }
- bool CAVI2AC3Filter::CheckDTS(const CMediaType* pmt)
- {
- return (pmt->majortype == MEDIATYPE_Audio
- || pmt->majortype == MEDIATYPE_MPEG2_PES
- || pmt->majortype == MEDIATYPE_DVD_ENCRYPTED_PACK)
- && pmt->subtype == MEDIASUBTYPE_DTS;
- }
- bool CAVI2AC3Filter::CheckWAVEAC3(const CMediaType* pmt)
- {
- return pmt->majortype == MEDIATYPE_Audio
- && pmt->subtype == MEDIASUBTYPE_WAVE_DOLBY_AC3
- && pmt->formattype == FORMAT_WaveFormatEx
- && ((WAVEFORMATEX*)pmt->pbFormat)->wFormatTag == WAVE_FORMAT_DOLBY_AC3;
- }
- bool CAVI2AC3Filter::CheckWAVEDTS(const CMediaType* pmt)
- {
- return pmt->majortype == MEDIATYPE_Audio
- && pmt->subtype == MEDIASUBTYPE_WAVE_DTS
- && pmt->formattype == FORMAT_WaveFormatEx
- && ((WAVEFORMATEX*)pmt->pbFormat)->wFormatTag == WAVE_FORMAT_DVD_DTS;
- }
- HRESULT CAVI2AC3Filter::CheckInputType(const CMediaType* mtIn)
- {
- bool fWaveFormatEx = !!(mtIn->formattype == FORMAT_WaveFormatEx);
- return CheckAC3(mtIn) && fWaveFormatEx || CheckDTS(mtIn) && fWaveFormatEx
- || CheckWAVEAC3(mtIn) || CheckWAVEDTS(mtIn)
- ? S_OK
- : VFW_E_TYPE_NOT_ACCEPTED;
- }
- HRESULT CAVI2AC3Filter::CheckTransform(const CMediaType* mtIn, const CMediaType* mtOut)
- {
- return CheckAC3(mtIn) && CheckWAVEAC3(mtOut)
- || CheckWAVEAC3(mtIn) && CheckAC3(mtOut)
- || CheckDTS(mtIn) && CheckWAVEDTS(mtOut)
- || CheckWAVEDTS(mtIn) && CheckDTS(mtOut)
- ? S_OK
- : VFW_E_TYPE_NOT_ACCEPTED;
- }
- HRESULT CAVI2AC3Filter::DecideBufferSize(IMemAllocator* pAllocator, ALLOCATOR_PROPERTIES* pProperties)
- {
- if(m_pInput->IsConnected() == FALSE) return E_UNEXPECTED;
- CComPtr<IMemAllocator> pAllocatorIn;
- m_pInput->GetAllocator(&pAllocatorIn);
- if(!pAllocatorIn) return E_UNEXPECTED;
- pAllocatorIn->GetProperties(pProperties);
- pProperties->cBuffers = 2;
- pProperties->cbBuffer = max(pProperties->cbBuffer, 1024*1024); // this should be enough...
- pProperties->cbAlign = 1;
- pProperties->cbPrefix = 0;
- HRESULT hr;
- ALLOCATOR_PROPERTIES Actual;
- if(FAILED(hr = pAllocator->SetProperties(pProperties, &Actual)))
- return hr;
- return(pProperties->cBuffers > Actual.cBuffers || pProperties->cbBuffer > Actual.cbBuffer
- ? E_FAIL
- : NOERROR);
- }
- HRESULT CAVI2AC3Filter::GetMediaType(int iPosition, CMediaType* pMediaType)
- {
- if(m_pInput->IsConnected() == FALSE) return E_UNEXPECTED;
- const GUID& majortype = m_pInput->CurrentMediaType().majortype;
- const GUID& subtype = m_pInput->CurrentMediaType().subtype;
-
- if(CheckAC3(&m_pInput->CurrentMediaType()) || CheckDTS(&m_pInput->CurrentMediaType()))
- {
- if(iPosition < 0) return E_INVALIDARG;
- if(iPosition > 0) return VFW_S_NO_MORE_ITEMS;
- pMediaType->majortype = MEDIATYPE_Audio;
- pMediaType->formattype = FORMAT_WaveFormatEx;
- WAVEFORMATEX* wfe = (WAVEFORMATEX*)pMediaType->AllocFormatBuffer(sizeof(WAVEFORMATEX));
- memset(wfe, 0, sizeof(WAVEFORMATEX));
- wfe->cbSize = sizeof(WAVEFORMATEX);
- wfe->nAvgBytesPerSec = ((WAVEFORMATEX*)m_pInput->CurrentMediaType().pbFormat)->nAvgBytesPerSec;
- wfe->nSamplesPerSec = ((WAVEFORMATEX*)m_pInput->CurrentMediaType().pbFormat)->nSamplesPerSec;
- wfe->wBitsPerSample = ((WAVEFORMATEX*)m_pInput->CurrentMediaType().pbFormat)->wBitsPerSample;
- wfe->nChannels = 2;
- wfe->nBlockAlign = 1;
- if(subtype == MEDIASUBTYPE_DOLBY_AC3)
- {
- pMediaType->subtype = MEDIASUBTYPE_WAVE_DOLBY_AC3;
- wfe->wFormatTag = WAVE_FORMAT_DOLBY_AC3;
- }
- else if(subtype == MEDIASUBTYPE_DTS)
- {
- pMediaType->subtype = MEDIASUBTYPE_WAVE_DTS;
- wfe->wFormatTag = WAVE_FORMAT_DVD_DTS;
- }
- else
- {
- return E_INVALIDARG;
- }
- }
- else if(CheckWAVEAC3(&m_pInput->CurrentMediaType()) || CheckWAVEDTS(&m_pInput->CurrentMediaType()))
- {
- if(iPosition < 0) return E_INVALIDARG;
- if(iPosition > 4) return VFW_S_NO_MORE_ITEMS;
- if(subtype == MEDIASUBTYPE_WAVE_DOLBY_AC3)
- {
- pMediaType->subtype = MEDIASUBTYPE_DOLBY_AC3;
- pMediaType->formattype = FORMAT_WaveFormatEx;
- DOLBYAC3WAVEFORMAT* wfe = (DOLBYAC3WAVEFORMAT*)pMediaType->AllocFormatBuffer(sizeof(DOLBYAC3WAVEFORMAT));
- memset(wfe, 0, sizeof(DOLBYAC3WAVEFORMAT));
- // unfortunately we can't tell what we are going to get in transform,
- // so we just set the most common values and hope that the ac3 decoder
- // is flexible enough (it is usually :) to find out these from the bitstream
- wfe->wfx.cbSize = sizeof(DOLBYAC3WAVEFORMAT) - sizeof(WAVEFORMATEX);
- wfe->wfx.wFormatTag = WAVE_FORMAT_DOLBY_AC3;
- wfe->wfx.nSamplesPerSec = 48000;
- wfe->wfx.nChannels = 6;
- wfe->bBigEndian = TRUE;
- }
- else if(subtype == MEDIASUBTYPE_WAVE_DTS)
- {
- pMediaType->subtype = MEDIASUBTYPE_DTS;
- pMediaType->formattype = FORMAT_WaveFormatEx;
- WAVEFORMATEX* wfe = (WAVEFORMATEX*)pMediaType->AllocFormatBuffer(sizeof(WAVEFORMATEX));
- memset(wfe, 0, sizeof(WAVEFORMATEX));
- // same case as with ac3, but this time we don't even know the structure
- wfe->cbSize = sizeof(WAVEFORMATEX);
- wfe->wFormatTag = WAVE_FORMAT_PCM;
- wfe->nSamplesPerSec = 48000;
- wfe->nChannels = 6;
- }
- else
- {
- return E_INVALIDARG;
- }
- switch(iPosition)
- {
- case 0:
- pMediaType->majortype = MEDIATYPE_Audio;
- break;
- case 1:
- pMediaType->ResetFormatBuffer();
- pMediaType->formattype = FORMAT_None;
- case 2:
- pMediaType->majortype = MEDIATYPE_MPEG2_PES;
- break;
- case 3:
- pMediaType->ResetFormatBuffer();
- pMediaType->formattype = FORMAT_None;
- case 4:
- pMediaType->majortype = MEDIATYPE_DVD_ENCRYPTED_PACK;
- break;
- default:
- return E_INVALIDARG;
- }
- }
- else
- {
- return VFW_S_NO_MORE_ITEMS;
- }
- return S_OK;
- }