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Sweden-Number/dlls/quartz/avisplit.c

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/*
* AVI Splitter Filter
*
* Copyright 2003 Robert Shearman
* Copyright 2004-2005 Christian Costa
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* FIXME:
* - we don't do anything with indices yet (we could use them when seeking)
* - we don't support multiple RIFF sections (i.e. large AVI files > 2Gb)
*/
#include "quartz_private.h"
#include "control_private.h"
#include "pin.h"
#include "uuids.h"
#include "aviriff.h"
#include "vfwmsgs.h"
#include "amvideo.h"
#include "fourcc.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include <math.h>
#include <assert.h>
#include "parser.h"
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
typedef struct StreamData
{
DWORD dwSampleSize;
FLOAT fSamplesPerSec;
DWORD dwLength;
} StreamData;
typedef struct AVISplitterImpl
{
ParserImpl Parser;
IMediaSample * pCurrentSample;
RIFFCHUNK CurrentChunk;
LONGLONG CurrentChunkOffset; /* in media time */
LONGLONG EndOfFile;
AVIMAINHEADER AviHeader;
StreamData *streams;
} AVISplitterImpl;
static HRESULT AVISplitter_NextChunk(LONGLONG * pllCurrentChunkOffset, RIFFCHUNK * pCurrentChunk, const REFERENCE_TIME * tStart, const REFERENCE_TIME * tStop, const BYTE * pbSrcStream, int inner)
{
if (inner)
*pllCurrentChunkOffset += MEDIATIME_FROM_BYTES(sizeof(RIFFLIST));
else
*pllCurrentChunkOffset += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK) + RIFFROUND(pCurrentChunk->cb));
if (*pllCurrentChunkOffset >= *tStop)
return S_FALSE; /* no more data - we couldn't even get the next chunk header! */
else if (*pllCurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) >= *tStop)
{
memcpy(pCurrentChunk, pbSrcStream + (DWORD)BYTES_FROM_MEDIATIME(*pllCurrentChunkOffset - *tStart), (DWORD)BYTES_FROM_MEDIATIME(*tStop - *pllCurrentChunkOffset));
return S_FALSE; /* no more data */
}
else
memcpy(pCurrentChunk, pbSrcStream + (DWORD)BYTES_FROM_MEDIATIME(*pllCurrentChunkOffset - *tStart), sizeof(RIFFCHUNK));
return S_OK;
}
static HRESULT AVISplitter_Sample(LPVOID iface, IMediaSample * pSample)
{
AVISplitterImpl *This = (AVISplitterImpl *)iface;
LPBYTE pbSrcStream = NULL;
long cbSrcStream = 0;
REFERENCE_TIME tStart, tStop;
HRESULT hr;
BOOL bMoreData = TRUE;
hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
cbSrcStream = IMediaSample_GetActualDataLength(pSample);
/* trace removed for performance reasons */
/* TRACE("(%p)\n", pSample); */
assert(BYTES_FROM_MEDIATIME(tStop - tStart) == cbSrcStream);
if (This->CurrentChunkOffset <= tStart && This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) > tStart)
{
DWORD offset = (DWORD)BYTES_FROM_MEDIATIME(tStart - This->CurrentChunkOffset);
assert(offset <= sizeof(RIFFCHUNK));
memcpy((BYTE *)&This->CurrentChunk + offset, pbSrcStream, sizeof(RIFFCHUNK) - offset);
}
else if (This->CurrentChunkOffset > tStart)
{
DWORD offset = (DWORD)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart);
if (offset >= (DWORD)cbSrcStream)
{
FIXME("large offset\n");
hr = S_OK;
goto skip;
}
memcpy(&This->CurrentChunk, pbSrcStream + offset, sizeof(RIFFCHUNK));
}
assert(This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) < tStop);
while (bMoreData)
{
BYTE * pbDstStream;
long cbDstStream;
long chunk_remaining_bytes = 0;
long offset_src;
WORD streamId;
Parser_OutputPin * pOutputPin;
BOOL bSyncPoint = TRUE;
if (This->CurrentChunkOffset >= tStart)
offset_src = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart) + sizeof(RIFFCHUNK);
else
offset_src = 0;
switch (This->CurrentChunk.fcc)
{
case ckidJUNK:
case aviFCC('i','d','x','1'): /* Index is not handled */
/* silently ignore */
if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, FALSE))
bMoreData = FALSE;
continue;
case ckidLIST:
/* We only handle the 'rec ' list which contains the stream data */
if ((*(DWORD*)(pbSrcStream + BYTES_FROM_MEDIATIME(This->CurrentChunkOffset-tStart) + sizeof(RIFFCHUNK))) == aviFCC('r','e','c',' '))
{
/* FIXME: We only advanced to the first chunk inside the list without keeping track that we are in it.
* This is not clean and the parser should be improved for that but it is enough for most AVI files. */
if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, TRUE))
{
bMoreData = FALSE;
continue;
}
This->CurrentChunk = *(RIFFCHUNK*) (pbSrcStream + BYTES_FROM_MEDIATIME(This->CurrentChunkOffset-tStart));
offset_src = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart) + sizeof(RIFFCHUNK);
break;
}
else if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, FALSE))
bMoreData = FALSE;
continue;
default:
break;
#if 0 /* According to the AVI specs, a stream data chunk should be ABXX where AB is the stream number and X means don't care */
switch (TWOCCFromFOURCC(This->CurrentChunk.fcc))
{
case cktypeDIBcompressed:
bSyncPoint = FALSE;
/* fall-through */
case cktypeDIBbits:
/* FIXME: check that pin is of type video */
break;
case cktypeWAVEbytes:
/* FIXME: check that pin is of type audio */
break;
case cktypePALchange:
FIXME("handle palette change\n");
break;
default:
FIXME("Skipping unknown chunk type: %s at file offset 0x%x\n", debugstr_an((LPSTR)&This->CurrentChunk.fcc, 4), (DWORD)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset));
if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, FALSE))
bMoreData = FALSE;
continue;
}
#endif
}
streamId = StreamFromFOURCC(This->CurrentChunk.fcc);
if (streamId > This->Parser.cStreams)
{
ERR("Corrupted AVI file (contains stream id %d, but supposed to only have %d streams)\n", streamId, This->Parser.cStreams);
hr = E_FAIL;
break;
}
pOutputPin = (Parser_OutputPin *)This->Parser.ppPins[streamId + 1];
if (!This->pCurrentSample)
{
/* cache media sample until it is ready to be despatched
* (i.e. we reach the end of the chunk) */
hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0);
if (SUCCEEDED(hr))
{
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
assert(hr == S_OK);
}
else
{
TRACE("Skipping sending sample for stream %02d due to error (%x)\n", streamId, hr);
This->pCurrentSample = NULL;
if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, FALSE))
bMoreData = FALSE;
continue;
}
}
hr = IMediaSample_GetPointer(This->pCurrentSample, &pbDstStream);
if (SUCCEEDED(hr))
{
cbDstStream = IMediaSample_GetSize(This->pCurrentSample);
chunk_remaining_bytes = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(This->CurrentChunk.cb + sizeof(RIFFCHUNK)) - tStart) - offset_src;
assert(chunk_remaining_bytes >= 0);
assert(chunk_remaining_bytes <= cbDstStream - IMediaSample_GetActualDataLength(This->pCurrentSample));
/* trace removed for performance reasons */
/* TRACE("chunk_remaining_bytes: 0x%x, cbSrcStream: 0x%x, offset_src: 0x%x\n", chunk_remaining_bytes, cbSrcStream, offset_src); */
}
if (chunk_remaining_bytes <= cbSrcStream - offset_src)
{
if (SUCCEEDED(hr))
{
memcpy(pbDstStream + IMediaSample_GetActualDataLength(This->pCurrentSample), pbSrcStream + offset_src, chunk_remaining_bytes);
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, chunk_remaining_bytes + IMediaSample_GetActualDataLength(This->pCurrentSample));
assert(hr == S_OK);
}
if (SUCCEEDED(hr))
{
REFERENCE_TIME tAviStart, tAviStop;
StreamData *stream = This->streams + streamId;
/* FIXME: hack */
if (pOutputPin->dwSamplesProcessed == 0)
IMediaSample_SetDiscontinuity(This->pCurrentSample, TRUE);
IMediaSample_SetSyncPoint(This->pCurrentSample, bSyncPoint);
pOutputPin->dwSamplesProcessed++;
if (stream->dwSampleSize)
tAviStart = (LONGLONG)ceil(10000000.0 * (float)(pOutputPin->dwSamplesProcessed - 1) * (float)IMediaSample_GetActualDataLength(This->pCurrentSample) / ((float)stream->dwSampleSize * stream->fSamplesPerSec));
else
tAviStart = (LONGLONG)ceil(10000000.0 * (float)(pOutputPin->dwSamplesProcessed - 1) / (float)stream->fSamplesPerSec);
if (stream->dwSampleSize)
tAviStop = (LONGLONG)ceil(10000000.0 * (float)pOutputPin->dwSamplesProcessed * (float)IMediaSample_GetActualDataLength(This->pCurrentSample) / ((float)stream->dwSampleSize * stream->fSamplesPerSec));
else
tAviStop = (LONGLONG)ceil(10000000.0 * (float)pOutputPin->dwSamplesProcessed / (float)stream->fSamplesPerSec);
IMediaSample_SetTime(This->pCurrentSample, &tAviStart, &tAviStop);
hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
if (hr != S_OK && hr != VFW_E_NOT_CONNECTED)
ERR("Error sending sample (%x)\n", hr);
}
if (This->pCurrentSample)
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream, FALSE))
bMoreData = FALSE;
}
else
{
if (SUCCEEDED(hr))
{
memcpy(pbDstStream + IMediaSample_GetActualDataLength(This->pCurrentSample), pbSrcStream + offset_src, cbSrcStream - offset_src);
IMediaSample_SetActualDataLength(This->pCurrentSample, cbSrcStream - offset_src + IMediaSample_GetActualDataLength(This->pCurrentSample));
}
bMoreData = FALSE;
}
}
skip:
if (tStop >= This->EndOfFile)
{
int i;
TRACE("End of file reached\n");
for (i = 0; i < This->Parser.cStreams; i++)
{
IPin* ppin;
HRESULT hr;
TRACE("Send End Of Stream to output pin %d\n", i);
hr = IPin_ConnectedTo(This->Parser.ppPins[i+1], &ppin);
if (SUCCEEDED(hr))
{
hr = IPin_EndOfStream(ppin);
IPin_Release(ppin);
}
if (FAILED(hr))
{
ERR("%x\n", hr);
break;
}
}
/* Force the pullpin thread to stop */
hr = S_FALSE;
}
return hr;
}
static HRESULT AVISplitter_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
{
if (IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream) && IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_Avi))
return S_OK;
return S_FALSE;
}
static HRESULT AVISplitter_ProcessStreamList(AVISplitterImpl * This, const BYTE * pData, DWORD cb)
{
PIN_INFO piOutput;
const RIFFCHUNK * pChunk;
HRESULT hr;
AM_MEDIA_TYPE amt;
float fSamplesPerSec = 0.0f;
DWORD dwSampleSize = 0;
DWORD dwLength = 0;
ALLOCATOR_PROPERTIES props;
static const WCHAR wszStreamTemplate[] = {'S','t','r','e','a','m',' ','%','0','2','d',0};
StreamData *stream;
props.cbAlign = 1;
props.cbPrefix = 0;
props.cbBuffer = 0x20000;
props.cBuffers = 2;
ZeroMemory(&amt, sizeof(amt));
piOutput.dir = PINDIR_OUTPUT;
piOutput.pFilter = (IBaseFilter *)This;
wsprintfW(piOutput.achName, wszStreamTemplate, This->Parser.cStreams);
for (pChunk = (const RIFFCHUNK *)pData;
((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
)
{
switch (pChunk->fcc)
{
case ckidSTREAMHEADER:
{
const AVISTREAMHEADER * pStrHdr = (const AVISTREAMHEADER *)pChunk;
TRACE("processing stream header\n");
fSamplesPerSec = (float)pStrHdr->dwRate / (float)pStrHdr->dwScale;
switch (pStrHdr->fccType)
{
case streamtypeVIDEO:
amt.formattype = FORMAT_VideoInfo;
amt.pbFormat = NULL;
amt.cbFormat = 0;
break;
case streamtypeAUDIO:
amt.formattype = FORMAT_WaveFormatEx;
break;
default:
amt.formattype = FORMAT_None;
}
amt.majortype = MEDIATYPE_Video;
amt.majortype.Data1 = pStrHdr->fccType;
amt.subtype = MEDIATYPE_Video;
amt.subtype.Data1 = pStrHdr->fccHandler;
TRACE("Subtype FCC: %.04s\n", (LPCSTR)&pStrHdr->fccHandler);
amt.lSampleSize = pStrHdr->dwSampleSize;
amt.bFixedSizeSamples = (amt.lSampleSize != 0);
/* FIXME: Is this right? */
if (!amt.lSampleSize)
{
amt.lSampleSize = 1;
dwSampleSize = 1;
}
amt.bTemporalCompression = IsEqualGUID(&amt.majortype, &MEDIATYPE_Video); /* FIXME? */
dwSampleSize = pStrHdr->dwSampleSize;
dwLength = pStrHdr->dwLength;
if (!dwLength)
dwLength = This->AviHeader.dwTotalFrames;
if (pStrHdr->dwSuggestedBufferSize)
props.cbBuffer = pStrHdr->dwSuggestedBufferSize;
break;
}
case ckidSTREAMFORMAT:
TRACE("processing stream format data\n");
if (IsEqualIID(&amt.formattype, &FORMAT_VideoInfo))
{
VIDEOINFOHEADER * pvi;
/* biCompression member appears to override the value in the stream header.
* i.e. the stream header can say something completely contradictory to what
* is in the BITMAPINFOHEADER! */
if (pChunk->cb < sizeof(BITMAPINFOHEADER))
{
ERR("Not enough bytes for BITMAPINFOHEADER\n");
return E_FAIL;
}
amt.cbFormat = sizeof(VIDEOINFOHEADER) - sizeof(BITMAPINFOHEADER) + pChunk->cb;
amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
ZeroMemory(amt.pbFormat, amt.cbFormat);
pvi = (VIDEOINFOHEADER *)amt.pbFormat;
pvi->AvgTimePerFrame = (LONGLONG)(10000000.0 / fSamplesPerSec);
CopyMemory(&pvi->bmiHeader, (const BYTE *)(pChunk + 1), pChunk->cb);
if (pvi->bmiHeader.biCompression)
amt.subtype.Data1 = pvi->bmiHeader.biCompression;
}
else
{
amt.cbFormat = pChunk->cb;
amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
CopyMemory(amt.pbFormat, (const BYTE *)(pChunk + 1), amt.cbFormat);
}
break;
case ckidSTREAMNAME:
TRACE("processing stream name\n");
/* FIXME: this doesn't exactly match native version (we omit the "##)" prefix), but hey... */
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)(pChunk + 1), pChunk->cb, piOutput.achName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
break;
case ckidSTREAMHANDLERDATA:
FIXME("process stream handler data\n");
break;
case ckidJUNK:
TRACE("JUNK chunk ignored\n");
break;
default:
FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
}
}
if (IsEqualGUID(&amt.formattype, &FORMAT_WaveFormatEx))
{
amt.subtype = MEDIATYPE_Video;
amt.subtype.Data1 = ((WAVEFORMATEX *)amt.pbFormat)->wFormatTag;
}
dump_AM_MEDIA_TYPE(&amt);
TRACE("fSamplesPerSec = %f\n", (double)fSamplesPerSec);
TRACE("dwSampleSize = %x\n", dwSampleSize);
TRACE("dwLength = %x\n", dwLength);
This->streams = CoTaskMemRealloc(This->streams, sizeof(StreamData) * (This->Parser.cStreams+1));
stream = This->streams + This->Parser.cStreams;
stream->fSamplesPerSec = fSamplesPerSec;
stream->dwSampleSize = dwSampleSize;
stream->dwLength = dwLength; /* TODO: Use this for mediaseeking */
hr = Parser_AddPin(&(This->Parser), &piOutput, &props, &amt);
return hr;
}
/* FIXME: fix leaks on failure here */
static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin)
{
PullPin *This = (PullPin *)iface;
HRESULT hr;
RIFFLIST list;
LONGLONG pos = 0; /* in bytes */
BYTE * pBuffer;
RIFFCHUNK * pCurrentChunk;
AVISplitterImpl * pAviSplit = (AVISplitterImpl *)This->pin.pinInfo.pFilter;
hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
pos += sizeof(list);
if (list.fcc != ckidRIFF)
{
ERR("Input stream not a RIFF file\n");
return E_FAIL;
}
if (list.fccListType != ckidAVI)
{
ERR("Input stream not an AVI RIFF file\n");
return E_FAIL;
}
hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
if (list.fcc != ckidLIST)
{
ERR("Expected LIST chunk, but got %.04s\n", (LPSTR)&list.fcc);
return E_FAIL;
}
if (list.fccListType != ckidHEADERLIST)
{
ERR("Header list expected. Got: %.04s\n", (LPSTR)&list.fccListType);
return E_FAIL;
}
pBuffer = HeapAlloc(GetProcessHeap(), 0, list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK));
hr = IAsyncReader_SyncRead(This->pReader, pos + sizeof(list), list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK), pBuffer);
pAviSplit->AviHeader.cb = 0;
for (pCurrentChunk = (RIFFCHUNK *)pBuffer; (BYTE *)pCurrentChunk + sizeof(*pCurrentChunk) < pBuffer + list.cb; pCurrentChunk = (RIFFCHUNK *)(((BYTE *)pCurrentChunk) + sizeof(*pCurrentChunk) + pCurrentChunk->cb))
{
RIFFLIST * pList;
switch (pCurrentChunk->fcc)
{
case ckidMAINAVIHEADER:
/* AVIMAINHEADER includes the structure that is pCurrentChunk at the moment */
memcpy(&pAviSplit->AviHeader, pCurrentChunk, sizeof(pAviSplit->AviHeader));
break;
case ckidLIST:
pList = (RIFFLIST *)pCurrentChunk;
switch (pList->fccListType)
{
case ckidSTREAMLIST:
hr = AVISplitter_ProcessStreamList(pAviSplit, (BYTE *)pCurrentChunk + sizeof(RIFFLIST), pCurrentChunk->cb + sizeof(RIFFCHUNK) - sizeof(RIFFLIST));
break;
case ckidODML:
FIXME("process ODML header\n");
break;
}
break;
case ckidJUNK:
/* ignore */
break;
default:
FIXME("unrecognised header list type: %.04s\n", (LPSTR)&pCurrentChunk->fcc);
}
}
HeapFree(GetProcessHeap(), 0, pBuffer);
if (pAviSplit->AviHeader.cb != sizeof(pAviSplit->AviHeader) - sizeof(RIFFCHUNK))
{
ERR("Avi Header wrong size!\n");
return E_FAIL;
}
pos += sizeof(RIFFCHUNK) + list.cb;
hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
while (list.fcc == ckidJUNK || (list.fcc == ckidLIST && list.fccListType == ckidINFO))
{
pos += sizeof(RIFFCHUNK) + list.cb;
hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
}
if (list.fcc != ckidLIST)
{
ERR("Expected LIST, but got %.04s\n", (LPSTR)&list.fcc);
return E_FAIL;
}
if (list.fccListType != ckidAVIMOVIE)
{
ERR("Expected AVI movie list, but got %.04s\n", (LPSTR)&list.fccListType);
return E_FAIL;
}
if (hr == S_OK)
{
pAviSplit->CurrentChunkOffset = MEDIATIME_FROM_BYTES(pos + sizeof(RIFFLIST));
pAviSplit->EndOfFile = MEDIATIME_FROM_BYTES(pos + list.cb + sizeof(RIFFLIST));
hr = IAsyncReader_SyncRead(This->pReader, BYTES_FROM_MEDIATIME(pAviSplit->CurrentChunkOffset), sizeof(pAviSplit->CurrentChunk), (BYTE *)&pAviSplit->CurrentChunk);
}
if (hr != S_OK)
return E_FAIL;
TRACE("AVI File ok\n");
return hr;
}
static HRESULT AVISplitter_Cleanup(LPVOID iface)
{
AVISplitterImpl *This = (AVISplitterImpl*)iface;
TRACE("(%p)->()\n", This);
if (This->pCurrentSample)
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
return S_OK;
}
HRESULT AVISplitter_create(IUnknown * pUnkOuter, LPVOID * ppv)
{
HRESULT hr;
AVISplitterImpl * This;
TRACE("(%p, %p)\n", pUnkOuter, ppv);
*ppv = NULL;
if (pUnkOuter)
return CLASS_E_NOAGGREGATION;
/* Note: This memory is managed by the transform filter once created */
This = CoTaskMemAlloc(sizeof(AVISplitterImpl));
This->pCurrentSample = NULL;
This->streams = NULL;
hr = Parser_Create(&(This->Parser), &CLSID_AviSplitter, AVISplitter_Sample, AVISplitter_QueryAccept, AVISplitter_InputPin_PreConnect, AVISplitter_Cleanup, NULL, NULL, NULL);
if (FAILED(hr))
return hr;
*ppv = (LPVOID)This;
return hr;
}
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