dlls/quartz/avidec.c - wine - Git at Google

 /*
  * AVI Decompressor (VFW decompressors wrapper)
  *
  * 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
  */

 #include "config.h"

 #include "quartz_private.h"
 #include "pin.h"

 #include "uuids.h"
 #include "amvideo.h"
 #include "windef.h"
 #include "winbase.h"
 #include "dshow.h"
 #include "strmif.h"
 #include "vfwmsgs.h"
 #include "vfw.h"
 #include "dvdmedia.h"

 #include <assert.h>

 #include "wine/unicode.h"
 #include "wine/debug.h"

 WINE_DEFAULT_DEBUG_CHANNEL(quartz);

 typedef struct AVIDecImpl
 {
     TransformFilter tf;

     HIC hvid;
     BITMAPINFOHEADER* pBihIn;
     BITMAPINFOHEADER* pBihOut;
     REFERENCE_TIME late;
 } AVIDecImpl;

 static const IBaseFilterVtbl AVIDec_Vtbl;

 static inline AVIDecImpl *impl_from_TransformFilter( TransformFilter *iface )
 {
     return CONTAINING_RECORD(iface, AVIDecImpl, tf);
 }

 static HRESULT WINAPI AVIDec_StartStreaming(TransformFilter* pTransformFilter)
 {
     AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
     DWORD result;

     TRACE("(%p)->()\n", This);
     This->late = -1;

     result = ICDecompressBegin(This->hvid, This->pBihIn, This->pBihOut);
     if (result != ICERR_OK)
     {
         ERR("Cannot start processing (%d)\n", result);
 	return E_FAIL;
     }
     return S_OK;
 }

 static HRESULT WINAPI AVIDec_EndFlush(TransformFilter *pTransformFilter) {
     AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
     This->late = -1;
     return S_OK;
 }

 static HRESULT WINAPI AVIDec_NotifyDrop(TransformFilter *pTransformFilter, IBaseFilter *sender, Quality qm) {
     AVIDecImpl *This = impl_from_TransformFilter(pTransformFilter);

     EnterCriticalSection(&This->tf.filter.csFilter);
     if (qm.Late > 0)
         This->late = qm.Late + qm.TimeStamp;
     else
         This->late = -1;
     LeaveCriticalSection(&This->tf.filter.csFilter);
     return S_OK;
 }

 static int AVIDec_DropSample(AVIDecImpl *This, REFERENCE_TIME tStart) {
     if (This->late < 0)
         return 0;

     if (tStart < This->late) {
         TRACE("Dropping sample\n");
         return 1;
     }
     This->late = -1;
     return 0;
 }

 static HRESULT WINAPI AVIDec_Receive(TransformFilter *tf, IMediaSample *pSample)
 {
     AVIDecImpl* This = impl_from_TransformFilter(tf);
     AM_MEDIA_TYPE amt;
     HRESULT hr;
     DWORD res;
     IMediaSample* pOutSample = NULL;
     DWORD cbDstStream;
     LPBYTE pbDstStream;
     DWORD cbSrcStream;
     LPBYTE pbSrcStream;
     LONGLONG tStart, tStop;
     DWORD flags = 0;

     EnterCriticalSection(&This->tf.csReceive);
     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
     if (FAILED(hr))
     {
         ERR("Cannot get pointer to sample data (%x)\n", hr);
         goto error;
     }

     cbSrcStream = IMediaSample_GetActualDataLength(pSample);

     TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);

     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
     if (FAILED(hr)) {
         ERR("Unable to retrieve media type\n");
         goto error;
     }

     /* Update input size to match sample size */
     This->pBihIn->biSizeImage = cbSrcStream;

     hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
     if (FAILED(hr)) {
         ERR("Unable to get delivery buffer (%x)\n", hr);
         goto error;
     }

     hr = IMediaSample_SetActualDataLength(pOutSample, 0);
     assert(hr == S_OK);

     hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
     if (FAILED(hr)) {
 	ERR("Unable to get pointer to buffer (%x)\n", hr);
 	goto error;
     }
     cbDstStream = IMediaSample_GetSize(pOutSample);
     if (cbDstStream < This->pBihOut->biSizeImage) {
         ERR("Sample size is too small %d < %d\n", cbDstStream, This->pBihOut->biSizeImage);
         hr = E_FAIL;
         goto error;
     }

     if (IMediaSample_IsPreroll(pSample) == S_OK)
         flags |= ICDECOMPRESS_PREROLL;
     if (IMediaSample_IsSyncPoint(pSample) != S_OK)
         flags |= ICDECOMPRESS_NOTKEYFRAME;
     hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
     if (hr == S_OK && AVIDec_DropSample(This, tStart))
         flags |= ICDECOMPRESS_HURRYUP;

     res = ICDecompress(This->hvid, flags, This->pBihIn, pbSrcStream, This->pBihOut, pbDstStream);
     if (res != ICERR_OK)
         ERR("Error occurred during the decompression (%x)\n", res);

     /* Drop sample if it's intended to be dropped */
     if (flags & ICDECOMPRESS_HURRYUP) {
         hr = S_OK;
         goto error;
     }

     IMediaSample_SetActualDataLength(pOutSample, This->pBihOut->biSizeImage);

     IMediaSample_SetPreroll(pOutSample, (IMediaSample_IsPreroll(pSample) == S_OK));
     IMediaSample_SetDiscontinuity(pOutSample, (IMediaSample_IsDiscontinuity(pSample) == S_OK));
     IMediaSample_SetSyncPoint(pOutSample, (IMediaSample_IsSyncPoint(pSample) == S_OK));

     if (hr == S_OK)
         IMediaSample_SetTime(pOutSample, &tStart, &tStop);
     else if (hr == VFW_S_NO_STOP_TIME)
         IMediaSample_SetTime(pOutSample, &tStart, NULL);
     else
         IMediaSample_SetTime(pOutSample, NULL, NULL);

     if (IMediaSample_GetMediaTime(pSample, &tStart, &tStop) == S_OK)
         IMediaSample_SetMediaTime(pOutSample, &tStart, &tStop);
     else
         IMediaSample_SetMediaTime(pOutSample, NULL, NULL);

     LeaveCriticalSection(&This->tf.csReceive);
     hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)This->tf.ppPins[1], pOutSample);
     EnterCriticalSection(&This->tf.csReceive);
     if (hr != S_OK && hr != VFW_E_NOT_CONNECTED)
         ERR("Error sending sample (%x)\n", hr);

 error:
     if (pOutSample)
         IMediaSample_Release(pOutSample);

     LeaveCriticalSection(&This->tf.csReceive);
     return hr;
 }

 static HRESULT WINAPI AVIDec_StopStreaming(TransformFilter* pTransformFilter)
 {
     AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
     DWORD result;

     TRACE("(%p)->()\n", This);

     if (!This->hvid)
         return S_OK;

     result = ICDecompressEnd(This->hvid);
     if (result != ICERR_OK)
     {
         ERR("Cannot stop processing (%d)\n", result);
         return E_FAIL;
     }
     return S_OK;
 }

 static HRESULT WINAPI AVIDec_SetMediaType(TransformFilter *tf, PIN_DIRECTION dir, const AM_MEDIA_TYPE * pmt)
 {
     AVIDecImpl* This = impl_from_TransformFilter(tf);
     HRESULT hr = VFW_E_TYPE_NOT_ACCEPTED;

     TRACE("(%p)->(%p)\n", This, pmt);

     if (dir != PINDIR_INPUT)
         return S_OK;

     /* Check root (GUID w/o FOURCC) */
     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Video)) &&
         (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Video)+4, sizeof(GUID)-4)))
     {
         VIDEOINFOHEADER *format1 = (VIDEOINFOHEADER *)pmt->pbFormat;
         VIDEOINFOHEADER2 *format2 = (VIDEOINFOHEADER2 *)pmt->pbFormat;
         BITMAPINFOHEADER *bmi;

         if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo))
             bmi = &format1->bmiHeader;
         else if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo2))
             bmi = &format2->bmiHeader;
         else
             goto failed;
         TRACE("Fourcc: %s\n", debugstr_an((const char *)&pmt->subtype.Data1, 4));

         This->hvid = ICLocate(pmt->majortype.Data1, pmt->subtype.Data1, bmi, NULL, ICMODE_DECOMPRESS);
         if (This->hvid)
         {
             AM_MEDIA_TYPE* outpmt = &This->tf.pmt;
             const CLSID* outsubtype;
             DWORD bih_size;
             DWORD output_depth = bmi->biBitCount;
             DWORD result;
             FreeMediaType(outpmt);

             switch(bmi->biBitCount)
             {
                 case 32: outsubtype = &MEDIASUBTYPE_RGB32; break;
                 case 24: outsubtype = &MEDIASUBTYPE_RGB24; break;
                 case 16: outsubtype = &MEDIASUBTYPE_RGB565; break;
                 case 8:  outsubtype = &MEDIASUBTYPE_RGB8; break;
                 default:
                     WARN("Non standard input depth %d, forced output depth to 32\n", bmi->biBitCount);
                     outsubtype = &MEDIASUBTYPE_RGB32;
                     output_depth = 32;
                     break;
             }

             /* Copy bitmap header from media type to 1 for input and 1 for output */
             bih_size = bmi->biSize + bmi->biClrUsed * 4;
             This->pBihIn = CoTaskMemAlloc(bih_size);
             if (!This->pBihIn)
             {
                 hr = E_OUTOFMEMORY;
                 goto failed;
             }
             This->pBihOut = CoTaskMemAlloc(bih_size);
             if (!This->pBihOut)
             {
                 hr = E_OUTOFMEMORY;
                 goto failed;
             }
             memcpy(This->pBihIn, bmi, bih_size);
             memcpy(This->pBihOut, bmi, bih_size);

             /* Update output format as non compressed bitmap */
             This->pBihOut->biCompression = 0;
             This->pBihOut->biBitCount = output_depth;
             This->pBihOut->biSizeImage = This->pBihOut->biWidth * This->pBihOut->biHeight * This->pBihOut->biBitCount / 8;
             TRACE("Size: %u\n", This->pBihIn->biSize);
             result = ICDecompressQuery(This->hvid, This->pBihIn, This->pBihOut);
             if (result != ICERR_OK)
             {
                 ERR("Unable to found a suitable output format (%d)\n", result);
                 goto failed;
             }

             /* Update output media type */
             CopyMediaType(outpmt, pmt);
             outpmt->subtype = *outsubtype;

             if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo))
                 memcpy(&(((VIDEOINFOHEADER *)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
             else if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo2))
                 memcpy(&(((VIDEOINFOHEADER2 *)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
             else
                 assert(0);

             TRACE("Connection accepted\n");
             return S_OK;
         }
         TRACE("Unable to find a suitable VFW decompressor\n");
     }

 failed:

     TRACE("Connection refused\n");
     return hr;
 }

 static HRESULT WINAPI AVIDec_CompleteConnect(TransformFilter *tf, PIN_DIRECTION dir, IPin *pin)
 {
     AVIDecImpl* This = impl_from_TransformFilter(tf);

     TRACE("(%p)\n", This);

     return S_OK;
 }

 static HRESULT WINAPI AVIDec_BreakConnect(TransformFilter *tf, PIN_DIRECTION dir)
 {
     AVIDecImpl *This = impl_from_TransformFilter(tf);

     TRACE("(%p)->()\n", This);

     if (dir == PINDIR_INPUT)
     {
         if (This->hvid)
             ICClose(This->hvid);
         CoTaskMemFree(This->pBihIn);
         CoTaskMemFree(This->pBihOut);
         This->hvid = NULL;
         This->pBihIn = NULL;
         This->pBihOut = NULL;
     }

     return S_OK;
 }

 static HRESULT WINAPI AVIDec_DecideBufferSize(TransformFilter *tf, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
 {
     AVIDecImpl *pAVI = impl_from_TransformFilter(tf);
     ALLOCATOR_PROPERTIES actual;

     if (!ppropInputRequest->cbAlign)
         ppropInputRequest->cbAlign = 1;

     if (ppropInputRequest->cbBuffer < pAVI->pBihOut->biSizeImage)
             ppropInputRequest->cbBuffer = pAVI->pBihOut->biSizeImage;

     if (!ppropInputRequest->cBuffers)
         ppropInputRequest->cBuffers = 1;

     return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
 }

 static const TransformFilterFuncTable AVIDec_FuncsTable = {
     AVIDec_DecideBufferSize,
     AVIDec_StartStreaming,
     AVIDec_Receive,
     AVIDec_StopStreaming,
     NULL,
     AVIDec_SetMediaType,
     AVIDec_CompleteConnect,
     AVIDec_BreakConnect,
     NULL,
     NULL,
     AVIDec_EndFlush,
     NULL,
     AVIDec_NotifyDrop
 };

 HRESULT AVIDec_create(IUnknown * pUnkOuter, LPVOID * ppv)
 {
     HRESULT hr;
     AVIDecImpl * This;

     TRACE("(%p, %p)\n", pUnkOuter, ppv);

     *ppv = NULL;

     if (pUnkOuter)
         return CLASS_E_NOAGGREGATION;

     hr = TransformFilter_Construct(&AVIDec_Vtbl, sizeof(AVIDecImpl), &CLSID_AVIDec, &AVIDec_FuncsTable, (IBaseFilter**)&This);

     if (FAILED(hr))
         return hr;

     This->hvid = NULL;
     This->pBihIn = NULL;
     This->pBihOut = NULL;

     *ppv = &This->tf.filter.IBaseFilter_iface;

     return hr;
 }

 static const IBaseFilterVtbl AVIDec_Vtbl =
 {
     TransformFilterImpl_QueryInterface,
     BaseFilterImpl_AddRef,
     TransformFilterImpl_Release,
     BaseFilterImpl_GetClassID,
     TransformFilterImpl_Stop,
     TransformFilterImpl_Pause,
     TransformFilterImpl_Run,
     BaseFilterImpl_GetState,
     BaseFilterImpl_SetSyncSource,
     BaseFilterImpl_GetSyncSource,
     BaseFilterImpl_EnumPins,
     TransformFilterImpl_FindPin,
     BaseFilterImpl_QueryFilterInfo,
     BaseFilterImpl_JoinFilterGraph,
     BaseFilterImpl_QueryVendorInfo
 };
	/*
	* AVI Decompressor (VFW decompressors wrapper)
	*
	* 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
	*/

	#include "config.h"

	#include "quartz_private.h"
	#include "pin.h"

	#include "uuids.h"
	#include "amvideo.h"
	#include "windef.h"
	#include "winbase.h"
	#include "dshow.h"
	#include "strmif.h"
	#include "vfwmsgs.h"
	#include "vfw.h"
	#include "dvdmedia.h"

	#include <assert.h>

	#include "wine/unicode.h"
	#include "wine/debug.h"

	WINE_DEFAULT_DEBUG_CHANNEL(quartz);

	typedef struct AVIDecImpl
	{
	TransformFilter tf;

	HIC hvid;
	BITMAPINFOHEADER* pBihIn;
	BITMAPINFOHEADER* pBihOut;
	REFERENCE_TIME late;
	} AVIDecImpl;

	static const IBaseFilterVtbl AVIDec_Vtbl;

	static inline AVIDecImpl impl_from_TransformFilter( TransformFilter iface )
	{
	return CONTAINING_RECORD(iface, AVIDecImpl, tf);
	}

	static HRESULT WINAPI AVIDec_StartStreaming(TransformFilter* pTransformFilter)
	{
	AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
	DWORD result;

	TRACE("(%p)->()\n", This);
	This->late = -1;

	result = ICDecompressBegin(This->hvid, This->pBihIn, This->pBihOut);
	if (result != ICERR_OK)
	{
	ERR("Cannot start processing (%d)\n", result);
	return E_FAIL;
	}
	return S_OK;
	}

	static HRESULT WINAPI AVIDec_EndFlush(TransformFilter *pTransformFilter) {
	AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
	This->late = -1;
	return S_OK;
	}

	static HRESULT WINAPI AVIDec_NotifyDrop(TransformFilter pTransformFilter, IBaseFilter sender, Quality qm) {
	AVIDecImpl *This = impl_from_TransformFilter(pTransformFilter);

	EnterCriticalSection(&This->tf.filter.csFilter);
	if (qm.Late > 0)
	This->late = qm.Late + qm.TimeStamp;
	else
	This->late = -1;
	LeaveCriticalSection(&This->tf.filter.csFilter);
	return S_OK;
	}

	static int AVIDec_DropSample(AVIDecImpl *This, REFERENCE_TIME tStart) {
	if (This->late < 0)
	return 0;

	if (tStart < This->late) {
	TRACE("Dropping sample\n");
	return 1;
	}
	This->late = -1;
	return 0;
	}

	static HRESULT WINAPI AVIDec_Receive(TransformFilter tf, IMediaSample pSample)
	{
	AVIDecImpl* This = impl_from_TransformFilter(tf);
	AM_MEDIA_TYPE amt;
	HRESULT hr;
	DWORD res;
	IMediaSample* pOutSample = NULL;
	DWORD cbDstStream;
	LPBYTE pbDstStream;
	DWORD cbSrcStream;
	LPBYTE pbSrcStream;
	LONGLONG tStart, tStop;
	DWORD flags = 0;

	EnterCriticalSection(&This->tf.csReceive);
	hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
	if (FAILED(hr))
	{
	ERR("Cannot get pointer to sample data (%x)\n", hr);
	goto error;
	}

	cbSrcStream = IMediaSample_GetActualDataLength(pSample);

	TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);

	hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
	if (FAILED(hr)) {
	ERR("Unable to retrieve media type\n");
	goto error;
	}

	/* Update input size to match sample size */
	This->pBihIn->biSizeImage = cbSrcStream;

	hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
	if (FAILED(hr)) {
	ERR("Unable to get delivery buffer (%x)\n", hr);
	goto error;
	}

	hr = IMediaSample_SetActualDataLength(pOutSample, 0);
	assert(hr == S_OK);

	hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
	if (FAILED(hr)) {
	ERR("Unable to get pointer to buffer (%x)\n", hr);
	goto error;
	}
	cbDstStream = IMediaSample_GetSize(pOutSample);
	if (cbDstStream < This->pBihOut->biSizeImage) {
	ERR("Sample size is too small %d < %d\n", cbDstStream, This->pBihOut->biSizeImage);
	hr = E_FAIL;
	goto error;
	}

	if (IMediaSample_IsPreroll(pSample) == S_OK)
	flags \|= ICDECOMPRESS_PREROLL;
	if (IMediaSample_IsSyncPoint(pSample) != S_OK)
	flags \|= ICDECOMPRESS_NOTKEYFRAME;
	hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
	if (hr == S_OK && AVIDec_DropSample(This, tStart))
	flags \|= ICDECOMPRESS_HURRYUP;

	res = ICDecompress(This->hvid, flags, This->pBihIn, pbSrcStream, This->pBihOut, pbDstStream);
	if (res != ICERR_OK)
	ERR("Error occurred during the decompression (%x)\n", res);

	/* Drop sample if it's intended to be dropped */
	if (flags & ICDECOMPRESS_HURRYUP) {
	hr = S_OK;
	goto error;
	}

	IMediaSample_SetActualDataLength(pOutSample, This->pBihOut->biSizeImage);

	IMediaSample_SetPreroll(pOutSample, (IMediaSample_IsPreroll(pSample) == S_OK));
	IMediaSample_SetDiscontinuity(pOutSample, (IMediaSample_IsDiscontinuity(pSample) == S_OK));
	IMediaSample_SetSyncPoint(pOutSample, (IMediaSample_IsSyncPoint(pSample) == S_OK));

	if (hr == S_OK)
	IMediaSample_SetTime(pOutSample, &tStart, &tStop);
	else if (hr == VFW_S_NO_STOP_TIME)
	IMediaSample_SetTime(pOutSample, &tStart, NULL);
	else
	IMediaSample_SetTime(pOutSample, NULL, NULL);

	if (IMediaSample_GetMediaTime(pSample, &tStart, &tStop) == S_OK)
	IMediaSample_SetMediaTime(pOutSample, &tStart, &tStop);
	else
	IMediaSample_SetMediaTime(pOutSample, NULL, NULL);

	LeaveCriticalSection(&This->tf.csReceive);
	hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)This->tf.ppPins[1], pOutSample);
	EnterCriticalSection(&This->tf.csReceive);
	if (hr != S_OK && hr != VFW_E_NOT_CONNECTED)
	ERR("Error sending sample (%x)\n", hr);

	error:
	if (pOutSample)
	IMediaSample_Release(pOutSample);

	LeaveCriticalSection(&This->tf.csReceive);
	return hr;
	}

	static HRESULT WINAPI AVIDec_StopStreaming(TransformFilter* pTransformFilter)
	{
	AVIDecImpl* This = impl_from_TransformFilter(pTransformFilter);
	DWORD result;

	TRACE("(%p)->()\n", This);

	if (!This->hvid)
	return S_OK;

	result = ICDecompressEnd(This->hvid);
	if (result != ICERR_OK)
	{
	ERR("Cannot stop processing (%d)\n", result);
	return E_FAIL;
	}
	return S_OK;
	}

	static HRESULT WINAPI AVIDec_SetMediaType(TransformFilter tf, PIN_DIRECTION dir, const AM_MEDIA_TYPE pmt)
	{
	AVIDecImpl* This = impl_from_TransformFilter(tf);
	HRESULT hr = VFW_E_TYPE_NOT_ACCEPTED;

	TRACE("(%p)->(%p)\n", This, pmt);

	if (dir != PINDIR_INPUT)
	return S_OK;

	/* Check root (GUID w/o FOURCC) */
	if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Video)) &&
	(!memcmp(((const char )&pmt->subtype)+4, ((const char )&MEDIATYPE_Video)+4, sizeof(GUID)-4)))
	{
	VIDEOINFOHEADER format1 = (VIDEOINFOHEADER )pmt->pbFormat;
	VIDEOINFOHEADER2 format2 = (VIDEOINFOHEADER2 )pmt->pbFormat;
	BITMAPINFOHEADER *bmi;

	if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo))
	bmi = &format1->bmiHeader;
	else if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo2))
	bmi = &format2->bmiHeader;
	else
	goto failed;
	TRACE("Fourcc: %s\n", debugstr_an((const char *)&pmt->subtype.Data1, 4));

	This->hvid = ICLocate(pmt->majortype.Data1, pmt->subtype.Data1, bmi, NULL, ICMODE_DECOMPRESS);
	if (This->hvid)
	{
	AM_MEDIA_TYPE* outpmt = &This->tf.pmt;
	const CLSID* outsubtype;
	DWORD bih_size;
	DWORD output_depth = bmi->biBitCount;
	DWORD result;
	FreeMediaType(outpmt);

	switch(bmi->biBitCount)
	{
	case 32: outsubtype = &MEDIASUBTYPE_RGB32; break;
	case 24: outsubtype = &MEDIASUBTYPE_RGB24; break;
	case 16: outsubtype = &MEDIASUBTYPE_RGB565; break;
	case 8: outsubtype = &MEDIASUBTYPE_RGB8; break;
	default:
	WARN("Non standard input depth %d, forced output depth to 32\n", bmi->biBitCount);
	outsubtype = &MEDIASUBTYPE_RGB32;
	output_depth = 32;
	break;
	}

	/* Copy bitmap header from media type to 1 for input and 1 for output */
	bih_size = bmi->biSize + bmi->biClrUsed * 4;
	This->pBihIn = CoTaskMemAlloc(bih_size);
	if (!This->pBihIn)
	{
	hr = E_OUTOFMEMORY;
	goto failed;
	}
	This->pBihOut = CoTaskMemAlloc(bih_size);
	if (!This->pBihOut)
	{
	hr = E_OUTOFMEMORY;
	goto failed;
	}
	memcpy(This->pBihIn, bmi, bih_size);
	memcpy(This->pBihOut, bmi, bih_size);

	/* Update output format as non compressed bitmap */
	This->pBihOut->biCompression = 0;
	This->pBihOut->biBitCount = output_depth;
	This->pBihOut->biSizeImage = This->pBihOut->biWidth * This->pBihOut->biHeight * This->pBihOut->biBitCount / 8;
	TRACE("Size: %u\n", This->pBihIn->biSize);
	result = ICDecompressQuery(This->hvid, This->pBihIn, This->pBihOut);
	if (result != ICERR_OK)
	{
	ERR("Unable to found a suitable output format (%d)\n", result);
	goto failed;
	}

	/* Update output media type */
	CopyMediaType(outpmt, pmt);
	outpmt->subtype = *outsubtype;

	if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo))
	memcpy(&(((VIDEOINFOHEADER *)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
	else if (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo2))
	memcpy(&(((VIDEOINFOHEADER2 *)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
	else
	assert(0);

	TRACE("Connection accepted\n");
	return S_OK;
	}
	TRACE("Unable to find a suitable VFW decompressor\n");
	}

	failed:

	TRACE("Connection refused\n");
	return hr;
	}

	static HRESULT WINAPI AVIDec_CompleteConnect(TransformFilter tf, PIN_DIRECTION dir, IPin pin)
	{
	AVIDecImpl* This = impl_from_TransformFilter(tf);

	TRACE("(%p)\n", This);

	return S_OK;
	}

	static HRESULT WINAPI AVIDec_BreakConnect(TransformFilter *tf, PIN_DIRECTION dir)
	{
	AVIDecImpl *This = impl_from_TransformFilter(tf);

	TRACE("(%p)->()\n", This);

	if (dir == PINDIR_INPUT)
	{
	if (This->hvid)
	ICClose(This->hvid);
	CoTaskMemFree(This->pBihIn);
	CoTaskMemFree(This->pBihOut);
	This->hvid = NULL;
	This->pBihIn = NULL;
	This->pBihOut = NULL;
	}

	return S_OK;
	}

	static HRESULT WINAPI AVIDec_DecideBufferSize(TransformFilter tf, IMemAllocator pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
	{
	AVIDecImpl *pAVI = impl_from_TransformFilter(tf);
	ALLOCATOR_PROPERTIES actual;

	if (!ppropInputRequest->cbAlign)
	ppropInputRequest->cbAlign = 1;

	if (ppropInputRequest->cbBuffer < pAVI->pBihOut->biSizeImage)
	ppropInputRequest->cbBuffer = pAVI->pBihOut->biSizeImage;

	if (!ppropInputRequest->cBuffers)
	ppropInputRequest->cBuffers = 1;

	return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
	}

	static const TransformFilterFuncTable AVIDec_FuncsTable = {
	AVIDec_DecideBufferSize,
	AVIDec_StartStreaming,
	AVIDec_Receive,
	AVIDec_StopStreaming,
	NULL,
	AVIDec_SetMediaType,
	AVIDec_CompleteConnect,
	AVIDec_BreakConnect,
	NULL,
	NULL,
	AVIDec_EndFlush,
	NULL,
	AVIDec_NotifyDrop
	};

	HRESULT AVIDec_create(IUnknown * pUnkOuter, LPVOID * ppv)
	{
	HRESULT hr;
	AVIDecImpl * This;

	TRACE("(%p, %p)\n", pUnkOuter, ppv);

	*ppv = NULL;

	if (pUnkOuter)
	return CLASS_E_NOAGGREGATION;

	hr = TransformFilter_Construct(&AVIDec_Vtbl, sizeof(AVIDecImpl), &CLSID_AVIDec, &AVIDec_FuncsTable, (IBaseFilter**)&This);

	if (FAILED(hr))
	return hr;

	This->hvid = NULL;
	This->pBihIn = NULL;
	This->pBihOut = NULL;

	*ppv = &This->tf.filter.IBaseFilter_iface;

	return hr;
	}

	static const IBaseFilterVtbl AVIDec_Vtbl =
	{
	TransformFilterImpl_QueryInterface,
	BaseFilterImpl_AddRef,
	TransformFilterImpl_Release,
	BaseFilterImpl_GetClassID,
	TransformFilterImpl_Stop,
	TransformFilterImpl_Pause,
	TransformFilterImpl_Run,
	BaseFilterImpl_GetState,
	BaseFilterImpl_SetSyncSource,
	BaseFilterImpl_GetSyncSource,
	BaseFilterImpl_EnumPins,
	TransformFilterImpl_FindPin,
	BaseFilterImpl_QueryFilterInfo,
	BaseFilterImpl_JoinFilterGraph,
	BaseFilterImpl_QueryVendorInfo
	};