570 lines
21 KiB
C
570 lines
21 KiB
C
/*
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* AVI Splitter Filter
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*
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* Copyright 2003 Robert Shearman
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* Copyright 2004-2005 Christian Costa
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* FIXME:
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* - we don't do anything with indices yet (we could use them when seeking)
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* - we don't support multiple RIFF sections (i.e. large AVI files > 2Gb)
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*/
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#include "quartz_private.h"
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#include "control_private.h"
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#include "pin.h"
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#include "uuids.h"
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#include "aviriff.h"
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#include "mmreg.h"
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#include "vfwmsgs.h"
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#include "amvideo.h"
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#include "fourcc.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include <math.h>
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#include <assert.h>
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#include "parser.h"
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WINE_DEFAULT_DEBUG_CHANNEL(quartz);
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typedef struct AVISplitterImpl
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{
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ParserImpl Parser;
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IMediaSample * pCurrentSample;
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RIFFCHUNK CurrentChunk;
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LONGLONG CurrentChunkOffset; /* in media time */
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LONGLONG EndOfFile;
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AVIMAINHEADER AviHeader;
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} AVISplitterImpl;
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static HRESULT AVISplitter_NextChunk(LONGLONG * pllCurrentChunkOffset, RIFFCHUNK * pCurrentChunk, const REFERENCE_TIME * tStart, const REFERENCE_TIME * tStop, const BYTE * pbSrcStream)
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{
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*pllCurrentChunkOffset += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK) + RIFFROUND(pCurrentChunk->cb));
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if (*pllCurrentChunkOffset > *tStop)
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return S_FALSE; /* no more data - we couldn't even get the next chunk header! */
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else if (*pllCurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) >= *tStop)
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{
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memcpy(pCurrentChunk, pbSrcStream + (DWORD)BYTES_FROM_MEDIATIME(*pllCurrentChunkOffset - *tStart), (DWORD)BYTES_FROM_MEDIATIME(*tStop - *pllCurrentChunkOffset));
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return S_FALSE; /* no more data */
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}
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else
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memcpy(pCurrentChunk, pbSrcStream + (DWORD)BYTES_FROM_MEDIATIME(*pllCurrentChunkOffset - *tStart), sizeof(RIFFCHUNK));
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return S_OK;
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}
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static HRESULT AVISplitter_Sample(LPVOID iface, IMediaSample * pSample)
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{
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AVISplitterImpl *This = (AVISplitterImpl *)iface;
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LPBYTE pbSrcStream = NULL;
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long cbSrcStream = 0;
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REFERENCE_TIME tStart, tStop;
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HRESULT hr;
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BOOL bMoreData = TRUE;
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hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
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hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
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cbSrcStream = IMediaSample_GetActualDataLength(pSample);
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/* trace removed for performance reasons */
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/* TRACE("(%p)\n", pSample); */
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assert(BYTES_FROM_MEDIATIME(tStop - tStart) == cbSrcStream);
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if (This->CurrentChunkOffset <= tStart && This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) > tStart)
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{
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DWORD offset = (DWORD)BYTES_FROM_MEDIATIME(tStart - This->CurrentChunkOffset);
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assert(offset <= sizeof(RIFFCHUNK));
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memcpy((BYTE *)&This->CurrentChunk + offset, pbSrcStream, sizeof(RIFFCHUNK) - offset);
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}
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else if (This->CurrentChunkOffset > tStart)
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{
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DWORD offset = (DWORD)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart);
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if (offset >= (DWORD)cbSrcStream)
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{
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FIXME("large offset\n");
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return S_OK;
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}
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memcpy(&This->CurrentChunk, pbSrcStream + offset, sizeof(RIFFCHUNK));
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}
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assert(This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK)) < tStop);
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while (bMoreData)
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{
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BYTE * pbDstStream;
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long cbDstStream;
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long chunk_remaining_bytes = 0;
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long offset_src;
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WORD streamId;
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Parser_OutputPin * pOutputPin;
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BOOL bSyncPoint = TRUE;
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if (This->CurrentChunkOffset >= tStart)
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offset_src = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart) + sizeof(RIFFCHUNK);
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else
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offset_src = 0;
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switch (This->CurrentChunk.fcc)
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{
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case ckidJUNK:
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case aviFCC('i','d','x','1'): /* Index is not handled */
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/* silently ignore */
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if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream))
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bMoreData = FALSE;
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continue;
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case ckidLIST:
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/* We only handle the 'rec ' list which contains the stream data */
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if ((*(DWORD*)(pbSrcStream + BYTES_FROM_MEDIATIME(This->CurrentChunkOffset-tStart) + sizeof(RIFFCHUNK))) == aviFCC('r','e','c',' '))
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{
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/* FIXME: We only advanced to the first chunk inside the list without keeping track that we are in it.
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* This is not clean and the parser should be improved for that but it is enough for most AVI files. */
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This->CurrentChunkOffset = MEDIATIME_FROM_BYTES(BYTES_FROM_MEDIATIME(This->CurrentChunkOffset) + sizeof(RIFFLIST));
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This->CurrentChunk = *(RIFFCHUNK*) (pbSrcStream + BYTES_FROM_MEDIATIME(This->CurrentChunkOffset-tStart));
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offset_src = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset - tStart) + sizeof(RIFFCHUNK);
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break;
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}
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else if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream))
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bMoreData = FALSE;
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continue;
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default:
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break;
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#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 */
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switch (TWOCCFromFOURCC(This->CurrentChunk.fcc))
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{
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case cktypeDIBcompressed:
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bSyncPoint = FALSE;
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/* fall-through */
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case cktypeDIBbits:
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/* FIXME: check that pin is of type video */
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break;
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case cktypeWAVEbytes:
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/* FIXME: check that pin is of type audio */
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break;
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case cktypePALchange:
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FIXME("handle palette change\n");
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break;
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default:
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FIXME("Skipping unknown chunk type: %s at file offset 0x%lx\n", debugstr_an((LPSTR)&This->CurrentChunk.fcc, 4), (DWORD)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset));
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if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream))
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bMoreData = FALSE;
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continue;
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}
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#endif
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}
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streamId = StreamFromFOURCC(This->CurrentChunk.fcc);
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if (streamId > This->Parser.cStreams)
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{
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ERR("Corrupted AVI file (contains stream id %d, but supposed to only have %ld streams)\n", streamId, This->Parser.cStreams);
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return E_FAIL;
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}
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pOutputPin = (Parser_OutputPin *)This->Parser.ppPins[streamId + 1];
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if (!This->pCurrentSample)
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{
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/* cache media sample until it is ready to be despatched
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* (i.e. we reach the end of the chunk) */
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hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0);
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if (SUCCEEDED(hr))
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{
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
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assert(hr == S_OK);
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}
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else
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{
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TRACE("Skipping sending sample for stream %02d due to error (%lx)\n", streamId, hr);
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This->pCurrentSample = NULL;
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if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream))
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bMoreData = FALSE;
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continue;
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}
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}
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hr = IMediaSample_GetPointer(This->pCurrentSample, &pbDstStream);
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if (SUCCEEDED(hr))
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{
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cbDstStream = IMediaSample_GetSize(This->pCurrentSample);
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chunk_remaining_bytes = (long)BYTES_FROM_MEDIATIME(This->CurrentChunkOffset + MEDIATIME_FROM_BYTES(This->CurrentChunk.cb + sizeof(RIFFCHUNK)) - tStart) - offset_src;
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assert(chunk_remaining_bytes >= 0);
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assert(chunk_remaining_bytes <= cbDstStream - IMediaSample_GetActualDataLength(This->pCurrentSample));
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/* trace removed for performance reasons */
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/* TRACE("chunk_remaining_bytes: 0x%lx, cbSrcStream: 0x%lx, offset_src: 0x%lx\n", chunk_remaining_bytes, cbSrcStream, offset_src); */
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}
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if (chunk_remaining_bytes <= cbSrcStream - offset_src)
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + IMediaSample_GetActualDataLength(This->pCurrentSample), pbSrcStream + offset_src, chunk_remaining_bytes);
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, chunk_remaining_bytes + IMediaSample_GetActualDataLength(This->pCurrentSample));
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assert(hr == S_OK);
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}
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if (SUCCEEDED(hr))
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{
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REFERENCE_TIME tAviStart, tAviStop;
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/* FIXME: hack */
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if (pOutputPin->dwSamplesProcessed == 0)
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IMediaSample_SetDiscontinuity(This->pCurrentSample, TRUE);
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IMediaSample_SetSyncPoint(This->pCurrentSample, bSyncPoint);
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pOutputPin->dwSamplesProcessed++;
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if (pOutputPin->dwSampleSize)
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tAviStart = (LONGLONG)ceil(10000000.0 * (float)(pOutputPin->dwSamplesProcessed - 1) * (float)IMediaSample_GetActualDataLength(This->pCurrentSample) / ((float)pOutputPin->dwSampleSize * pOutputPin->fSamplesPerSec));
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else
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tAviStart = (LONGLONG)ceil(10000000.0 * (float)(pOutputPin->dwSamplesProcessed - 1) / (float)pOutputPin->fSamplesPerSec);
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if (pOutputPin->dwSampleSize)
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tAviStop = (LONGLONG)ceil(10000000.0 * (float)pOutputPin->dwSamplesProcessed * (float)IMediaSample_GetActualDataLength(This->pCurrentSample) / ((float)pOutputPin->dwSampleSize * pOutputPin->fSamplesPerSec));
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else
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tAviStop = (LONGLONG)ceil(10000000.0 * (float)pOutputPin->dwSamplesProcessed / (float)pOutputPin->fSamplesPerSec);
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IMediaSample_SetTime(This->pCurrentSample, &tAviStart, &tAviStop);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (hr != S_OK && hr != VFW_E_NOT_CONNECTED)
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ERR("Error sending sample (%lx)\n", hr);
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}
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if (This->pCurrentSample)
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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if (S_FALSE == AVISplitter_NextChunk(&This->CurrentChunkOffset, &This->CurrentChunk, &tStart, &tStop, pbSrcStream))
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bMoreData = FALSE;
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}
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else
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + IMediaSample_GetActualDataLength(This->pCurrentSample), pbSrcStream + offset_src, cbSrcStream - offset_src);
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IMediaSample_SetActualDataLength(This->pCurrentSample, cbSrcStream - offset_src + IMediaSample_GetActualDataLength(This->pCurrentSample));
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}
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bMoreData = FALSE;
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}
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}
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return hr;
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}
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static HRESULT AVISplitter_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
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{
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if (IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream) && IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_Avi))
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return S_OK;
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return S_FALSE;
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}
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static HRESULT AVISplitter_ProcessStreamList(AVISplitterImpl * This, const BYTE * pData, DWORD cb)
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{
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PIN_INFO piOutput;
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const RIFFCHUNK * pChunk;
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HRESULT hr;
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AM_MEDIA_TYPE amt;
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float fSamplesPerSec = 0.0f;
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DWORD dwSampleSize = 0;
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DWORD dwLength = 0;
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ALLOCATOR_PROPERTIES props;
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static const WCHAR wszStreamTemplate[] = {'S','t','r','e','a','m',' ','%','0','2','d',0};
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props.cbAlign = 1;
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props.cbPrefix = 0;
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props.cbBuffer = 0x20000;
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props.cBuffers = 2;
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ZeroMemory(&amt, sizeof(amt));
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piOutput.dir = PINDIR_OUTPUT;
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piOutput.pFilter = (IBaseFilter *)This;
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wsprintfW(piOutput.achName, wszStreamTemplate, This->Parser.cStreams);
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for (pChunk = (const RIFFCHUNK *)pData;
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((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
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pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
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)
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{
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switch (pChunk->fcc)
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{
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case ckidSTREAMHEADER:
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{
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const AVISTREAMHEADER * pStrHdr = (const AVISTREAMHEADER *)pChunk;
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TRACE("processing stream header\n");
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fSamplesPerSec = (float)pStrHdr->dwRate / (float)pStrHdr->dwScale;
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switch (pStrHdr->fccType)
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{
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case streamtypeVIDEO:
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memcpy(&amt.formattype, &FORMAT_VideoInfo, sizeof(GUID));
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amt.pbFormat = NULL;
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amt.cbFormat = 0;
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break;
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case streamtypeAUDIO:
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memcpy(&amt.formattype, &FORMAT_WaveFormatEx, sizeof(GUID));
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break;
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default:
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memcpy(&amt.formattype, &FORMAT_None, sizeof(GUID));
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}
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memcpy(&amt.majortype, &MEDIATYPE_Video, sizeof(GUID));
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amt.majortype.Data1 = pStrHdr->fccType;
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memcpy(&amt.subtype, &MEDIATYPE_Video, sizeof(GUID));
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amt.subtype.Data1 = pStrHdr->fccHandler;
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TRACE("Subtype FCC: %.04s\n", (LPCSTR)&pStrHdr->fccHandler);
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amt.lSampleSize = pStrHdr->dwSampleSize;
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amt.bFixedSizeSamples = (amt.lSampleSize != 0);
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/* FIXME: Is this right? */
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if (!amt.lSampleSize)
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{
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amt.lSampleSize = 1;
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dwSampleSize = 1;
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}
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amt.bTemporalCompression = IsEqualGUID(&amt.majortype, &MEDIATYPE_Video); /* FIXME? */
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dwSampleSize = pStrHdr->dwSampleSize;
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dwLength = pStrHdr->dwLength;
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if (!dwLength)
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dwLength = This->AviHeader.dwTotalFrames;
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if (pStrHdr->dwSuggestedBufferSize)
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props.cbBuffer = pStrHdr->dwSuggestedBufferSize;
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break;
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}
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case ckidSTREAMFORMAT:
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TRACE("processing stream format data\n");
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if (IsEqualIID(&amt.formattype, &FORMAT_VideoInfo))
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{
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VIDEOINFOHEADER * pvi;
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/* biCompression member appears to override the value in the stream header.
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* i.e. the stream header can say something completely contradictory to what
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* is in the BITMAPINFOHEADER! */
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if (pChunk->cb < sizeof(BITMAPINFOHEADER))
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{
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ERR("Not enough bytes for BITMAPINFOHEADER\n");
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return E_FAIL;
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}
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amt.cbFormat = sizeof(VIDEOINFOHEADER) - sizeof(BITMAPINFOHEADER) + pChunk->cb;
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amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
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ZeroMemory(amt.pbFormat, amt.cbFormat);
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pvi = (VIDEOINFOHEADER *)amt.pbFormat;
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pvi->AvgTimePerFrame = (LONGLONG)(10000000.0 / fSamplesPerSec);
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CopyMemory(&pvi->bmiHeader, (const BYTE *)(pChunk + 1), pChunk->cb);
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if (pvi->bmiHeader.biCompression)
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amt.subtype.Data1 = pvi->bmiHeader.biCompression;
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}
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else
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{
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amt.cbFormat = pChunk->cb;
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amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
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CopyMemory(amt.pbFormat, (const BYTE *)(pChunk + 1), amt.cbFormat);
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}
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break;
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case ckidSTREAMNAME:
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TRACE("processing stream name\n");
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/* FIXME: this doesn't exactly match native version (we omit the "##)" prefix), but hey... */
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MultiByteToWideChar(CP_ACP, 0, (LPCSTR)(pChunk + 1), pChunk->cb, piOutput.achName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
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break;
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case ckidSTREAMHANDLERDATA:
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FIXME("process stream handler data\n");
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break;
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case ckidJUNK:
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TRACE("JUNK chunk ignored\n");
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break;
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default:
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FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
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}
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}
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if (IsEqualGUID(&amt.formattype, &FORMAT_WaveFormatEx))
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{
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memcpy(&amt.subtype, &MEDIATYPE_Video, sizeof(GUID));
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amt.subtype.Data1 = ((WAVEFORMATEX *)amt.pbFormat)->wFormatTag;
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}
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dump_AM_MEDIA_TYPE(&amt);
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TRACE("fSamplesPerSec = %f\n", (double)fSamplesPerSec);
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TRACE("dwSampleSize = %lx\n", dwSampleSize);
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TRACE("dwLength = %lx\n", dwLength);
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hr = Parser_AddPin(&(This->Parser), &piOutput, &props, &amt, fSamplesPerSec, dwSampleSize, dwLength);
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return hr;
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}
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/* FIXME: fix leaks on failure here */
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static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin)
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{
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PullPin *This = (PullPin *)iface;
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HRESULT hr;
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RIFFLIST list;
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LONGLONG pos = 0; /* in bytes */
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BYTE * pBuffer;
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RIFFCHUNK * pCurrentChunk;
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AVISplitterImpl * pAviSplit = (AVISplitterImpl *)This->pin.pinInfo.pFilter;
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hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
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pos += sizeof(list);
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if (list.fcc != ckidRIFF)
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{
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ERR("Input stream not a RIFF file\n");
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return E_FAIL;
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}
|
|
if (list.cb > 1 * 1024 * 1024 * 1024) /* cannot be more than 1Gb in size */
|
|
{
|
|
ERR("Input stream violates RIFF spec\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);
|
|
|
|
if (list.fcc == ckidJUNK)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
hr = Parser_Create(&(This->Parser), &CLSID_AviSplitter, AVISplitter_Sample, AVISplitter_QueryAccept, AVISplitter_InputPin_PreConnect);
|
|
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
*ppv = (LPVOID)This;
|
|
|
|
return hr;
|
|
}
|