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

 /*
  * WAVE Parser Filter
  *
  * Copyright 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 "quartz_private.h"
 #include "pin.h"

 #include "uuids.h"
 #include "aviriff.h"
 #include "vfwmsgs.h"
 #include "mmsystem.h"

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

 #include <math.h>
 #include <assert.h>

 #include "parser.h"

 WINE_DEFAULT_DEBUG_CHANNEL(quartz);

 static const WCHAR wcsOutputPinName[] = {'o','u','t','p','u','t',' ','p','i','n',0};

 typedef struct WAVEParserImpl
 {
     ParserImpl Parser;
     LONGLONG StartOfFile; /* in media time */
     LONGLONG EndOfFile;
     DWORD dwSampleSize;
     DWORD nSamplesPerSec;
     DWORD dwLength;
 } WAVEParserImpl;

 static inline WAVEParserImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
 {
     return CONTAINING_RECORD(iface, WAVEParserImpl, Parser.sourceSeeking.IMediaSeeking_iface);
 }

 static inline WAVEParserImpl *impl_from_IBaseFilter( IBaseFilter *iface )
 {
     return CONTAINING_RECORD(iface, WAVEParserImpl, Parser.filter.IBaseFilter_iface);
 }

 static LONGLONG bytepos_to_duration(WAVEParserImpl *This, LONGLONG bytepos)
 {
     LONGLONG duration = BYTES_FROM_MEDIATIME(bytepos - This->StartOfFile);
     duration *= 10000000;
     duration /= (This->dwSampleSize * This->nSamplesPerSec);

     return duration;
 }

 static LONGLONG duration_to_bytepos(WAVEParserImpl *This, LONGLONG duration)
 {
     LONGLONG bytepos;

     bytepos = (This->dwSampleSize * This->nSamplesPerSec);
     bytepos *= duration;
     bytepos /= 10000000;
     bytepos += BYTES_FROM_MEDIATIME(This->StartOfFile);
     bytepos -= bytepos % This->dwSampleSize;

     return MEDIATIME_FROM_BYTES(bytepos);
 }

 static HRESULT WAVEParser_Sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR cookie)
 {
     WAVEParserImpl *This = iface;
     LPBYTE pbSrcStream = NULL;
     ULONG cbSrcStream = 0;
     REFERENCE_TIME tStart, tStop;
     HRESULT hr;
     IMediaSample *newsample = NULL;
     Parser_OutputPin *pOutputPin;
     PullPin *pin = This->Parser.pInputPin;

     IMediaSample_GetPointer(pSample, &pbSrcStream);
     hr = IMediaSample_GetTime(pSample, &tStart, &tStop);

     cbSrcStream = IMediaSample_GetActualDataLength(pSample);

     /* Flush occurring */
     if (cbSrcStream == 0)
     {
         TRACE(".. Why do I need you?\n");
         return S_OK;
     }

     pOutputPin = unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1]);

     if (SUCCEEDED(hr))
         hr = IMemAllocator_GetBuffer(pin->pAlloc, &newsample, NULL, NULL, 0);

     if (SUCCEEDED(hr))
     {
         LONGLONG rtSampleStart = pin->rtNext;
         /* Add 4 for the next header, which should hopefully work */
         LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(newsample));

         if (rtSampleStop > pin->rtStop)
             rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));

         hr = IMediaSample_SetTime(newsample, &rtSampleStart, &rtSampleStop);

         pin->rtCurrent = pin->rtNext;
         pin->rtNext = rtSampleStop;

         IMediaSample_SetPreroll(newsample, 0);
         IMediaSample_SetDiscontinuity(newsample, 0);
         IMediaSample_SetSyncPoint(newsample, 1);

         hr = IAsyncReader_Request(pin->pReader, newsample, 0);
     }

     if (SUCCEEDED(hr))
     {
         REFERENCE_TIME tAviStart, tAviStop;

         IMediaSample_SetSyncPoint(pSample, TRUE);
         pOutputPin->dwSamplesProcessed++;

         tAviStart = bytepos_to_duration(This, tStart);
         tAviStop = bytepos_to_duration(This, tStart + MEDIATIME_FROM_BYTES(IMediaSample_GetActualDataLength(pSample)));

         IMediaSample_SetTime(pSample, &tAviStart, &tAviStop);

         hr = BaseOutputPinImpl_Deliver(&pOutputPin->pin, pSample);
         if (hr != S_OK && hr != S_FALSE && hr != VFW_E_WRONG_STATE)
             ERR("Error sending sample (%x)\n", hr);
         else if (hr != S_OK)
             /* Unset progression if denied! */
             This->Parser.pInputPin->rtCurrent = tStart;
     }

     if (tStop >= This->EndOfFile || (bytepos_to_duration(This, tStop) >= This->Parser.sourceSeeking.llStop) || hr == VFW_E_NOT_CONNECTED)
     {
         unsigned 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 %u\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 WAVEParser_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 {
     if (!IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream))
 	return S_FALSE;
     if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_WAVE))
         return S_OK;
     if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_AU) || IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_AIFF))
 	FIXME("AU and AIFF files not supported yet!\n");
     return S_FALSE;
 }

 static HRESULT WINAPI WAVEParserImpl_seek(IMediaSeeking *iface)
 {
     WAVEParserImpl *This = impl_from_IMediaSeeking(iface);
     PullPin *pPin = This->Parser.pInputPin;
     IPin *victim = NULL;
     LONGLONG newpos, curpos, endpos, bytepos;

     newpos = This->Parser.sourceSeeking.llCurrent;
     curpos = bytepos_to_duration(This, pPin->rtCurrent);
     endpos = bytepos_to_duration(This, This->EndOfFile);
     bytepos = duration_to_bytepos(This, newpos);

     if (newpos > endpos)
     {
         WARN("Requesting position %x%08x beyond end of stream %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(endpos>>32), (DWORD)endpos);
         return E_INVALIDARG;
     }

     if (curpos/1000000 == newpos/1000000)
     {
         TRACE("Requesting position %x%08x same as current position %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(curpos>>32), (DWORD)curpos);
         return S_OK;
     }

     TRACE("Moving sound to %08u bytes!\n", (DWORD)BYTES_FROM_MEDIATIME(bytepos));

     EnterCriticalSection(&pPin->thread_lock);
     IPin_BeginFlush(&pPin->pin.IPin_iface);

     /* Make sure this is done while stopped, BeginFlush takes care of this */
     EnterCriticalSection(&This->Parser.filter.csFilter);
     IPin_ConnectedTo(This->Parser.ppPins[1], &victim);
     if (victim)
     {
         IPin_NewSegment(victim, newpos, endpos, pPin->dRate);
         IPin_Release(victim);
     }

     pPin->rtStart = pPin->rtCurrent = bytepos;
     unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1])->dwSamplesProcessed = 0;
     LeaveCriticalSection(&This->Parser.filter.csFilter);

     TRACE("Done flushing\n");
     IPin_EndFlush(&pPin->pin.IPin_iface);
     LeaveCriticalSection(&pPin->thread_lock);

     return S_OK;
 }

 static HRESULT WAVEParser_InputPin_PreConnect(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props)
 {
     PullPin *This = impl_PullPin_from_IPin(iface);
     HRESULT hr;
     RIFFLIST list;
     RIFFCHUNK chunk;
     LONGLONG pos = 0; /* in bytes */
     PIN_INFO piOutput;
     AM_MEDIA_TYPE amt;
     WAVEParserImpl * pWAVEParser = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
     LONGLONG length, avail;

     piOutput.dir = PINDIR_OUTPUT;
     piOutput.pFilter = &pWAVEParser->Parser.filter.IBaseFilter_iface;
     lstrcpynW(piOutput.achName, wcsOutputPinName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));

     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
     pos += sizeof(list);

    if (list.fcc != FOURCC_RIFF)
     {
         ERR("Input stream not a RIFF file\n");
         return E_FAIL;
     }
     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 != mmioFOURCC('W','A','V','E'))
     {
         ERR("Input stream not an WAVE RIFF file\n");
         return E_FAIL;
     }

     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
     pos += sizeof(chunk);
     if (chunk.fcc != mmioFOURCC('f','m','t',' '))
     {
         ERR("Expected 'fmt ' chunk, but got %.04s\n", (LPSTR)&chunk.fcc);
         return E_FAIL;
     }

     amt.majortype = MEDIATYPE_Audio;
     amt.formattype = FORMAT_WaveFormatEx;
     amt.cbFormat = chunk.cb;
     amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
     amt.pUnk = NULL;
     hr = IAsyncReader_SyncRead(This->pReader, pos, amt.cbFormat, amt.pbFormat);
     amt.subtype = MEDIATYPE_Audio;
     amt.subtype.Data1 = ((WAVEFORMATEX*)amt.pbFormat)->wFormatTag;

     pos += chunk.cb;
     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
     if (chunk.fcc == mmioFOURCC('f','a','c','t'))
     {
         FIXME("'fact' chunk not supported yet\n");
 	pos += sizeof(chunk) + chunk.cb;
 	hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
     }
     if (chunk.fcc != mmioFOURCC('d','a','t','a'))
     {
         ERR("Expected 'data' chunk, but got %.04s\n", (LPSTR)&chunk.fcc);
         return E_FAIL;
     }

     if (hr == S_OK)
     {
         pWAVEParser->StartOfFile = MEDIATIME_FROM_BYTES(pos + sizeof(RIFFCHUNK));
         pWAVEParser->EndOfFile = MEDIATIME_FROM_BYTES(pos + chunk.cb + sizeof(RIFFCHUNK));
     }

     if (hr != S_OK)
         return E_FAIL;

     props->cbAlign = ((WAVEFORMATEX*)amt.pbFormat)->nBlockAlign;
     props->cbPrefix = 0;
     props->cbBuffer = 4096;
     props->cBuffers = 3;
     pWAVEParser->dwSampleSize = ((WAVEFORMATEX*)amt.pbFormat)->nBlockAlign;
     IAsyncReader_Length(This->pReader, &length, &avail);
     pWAVEParser->dwLength = length / (ULONGLONG)pWAVEParser->dwSampleSize;
     pWAVEParser->nSamplesPerSec = ((WAVEFORMATEX*)amt.pbFormat)->nSamplesPerSec;
     hr = Parser_AddPin(&(pWAVEParser->Parser), &piOutput, props, &amt);
     CoTaskMemFree(amt.pbFormat);

     pWAVEParser->Parser.sourceSeeking.llCurrent = 0;
     pWAVEParser->Parser.sourceSeeking.llStop = pWAVEParser->Parser.sourceSeeking.llDuration = bytepos_to_duration(pWAVEParser, pWAVEParser->EndOfFile);
     TRACE("Duration: %u seconds\n", (DWORD)(pWAVEParser->Parser.sourceSeeking.llDuration / (LONGLONG)10000000));

     This->rtStop = pWAVEParser->EndOfFile;
     This->rtStart = pWAVEParser->StartOfFile;

     TRACE("WAVE File ok\n");

     return hr;
 }

 static HRESULT WAVEParser_Cleanup(LPVOID iface)
 {
     WAVEParserImpl *This = iface;

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

     return S_OK;
 }

 static HRESULT WAVEParser_first_request(LPVOID iface)
 {
     WAVEParserImpl *This = iface;
     PullPin *pin = This->Parser.pInputPin;
     HRESULT hr;
     IMediaSample *sample;

     if (pin->rtCurrent >= pin->rtStop)
     {
         /* Last sample has already been queued, request nothing more */
         TRACE("Done!\n");
         return S_OK;
     }

     hr = IMemAllocator_GetBuffer(pin->pAlloc, &sample, NULL, NULL, 0);

     pin->rtNext = pin->rtCurrent;
     if (SUCCEEDED(hr))
     {
         LONGLONG rtSampleStart = pin->rtNext;
         /* Add 4 for the next header, which should hopefully work */
         LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(sample));
         Parser_OutputPin *outpin = unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1]);

         if (rtSampleStop > pin->rtStop)
             rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));

         hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);

         pin->rtCurrent = pin->rtNext;
         pin->rtNext = rtSampleStop;

         IMediaSample_SetPreroll(sample, FALSE);
         if (!outpin->dwSamplesProcessed++)
             IMediaSample_SetDiscontinuity(sample, TRUE);
         else
             IMediaSample_SetDiscontinuity(sample, FALSE);

         hr = IAsyncReader_Request(pin->pReader, sample, 0);
     }
     if (FAILED(hr))
         ERR("Horsemen of the apocalypse came to bring error 0x%08x %p\n", hr, sample);

     return hr;
 }

 static HRESULT WAVEParser_disconnect(LPVOID iface)
 {
     /* TODO: Find and plug memory leaks */
     return S_OK;
 }

 static const IBaseFilterVtbl WAVEParser_Vtbl =
 {
     Parser_QueryInterface,
     Parser_AddRef,
     Parser_Release,
     Parser_GetClassID,
     Parser_Stop,
     Parser_Pause,
     Parser_Run,
     Parser_GetState,
     Parser_SetSyncSource,
     Parser_GetSyncSource,
     Parser_EnumPins,
     Parser_FindPin,
     Parser_QueryFilterInfo,
     Parser_JoinFilterGraph,
     Parser_QueryVendorInfo
 };

 HRESULT WAVEParser_create(IUnknown * pUnkOuter, LPVOID * ppv)
 {
     HRESULT hr;
     WAVEParserImpl * 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(WAVEParserImpl));

     hr = Parser_Create(&(This->Parser), &WAVEParser_Vtbl, &CLSID_WAVEParser, WAVEParser_Sample, WAVEParser_QueryAccept, WAVEParser_InputPin_PreConnect, WAVEParser_Cleanup, WAVEParser_disconnect, WAVEParser_first_request, NULL, NULL, WAVEParserImpl_seek, NULL);

     if (FAILED(hr))
         return hr;

     *ppv = This;

     return hr;
 }
	/*
	* WAVE Parser Filter
	*
	* Copyright 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 "quartz_private.h"
	#include "pin.h"

	#include "uuids.h"
	#include "aviriff.h"
	#include "vfwmsgs.h"
	#include "mmsystem.h"

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

	#include <math.h>
	#include <assert.h>

	#include "parser.h"

	WINE_DEFAULT_DEBUG_CHANNEL(quartz);

	static const WCHAR wcsOutputPinName[] = {'o','u','t','p','u','t',' ','p','i','n',0};

	typedef struct WAVEParserImpl
	{
	ParserImpl Parser;
	LONGLONG StartOfFile; /* in media time */
	LONGLONG EndOfFile;
	DWORD dwSampleSize;
	DWORD nSamplesPerSec;
	DWORD dwLength;
	} WAVEParserImpl;

	static inline WAVEParserImpl impl_from_IMediaSeeking( IMediaSeeking iface )
	{
	return CONTAINING_RECORD(iface, WAVEParserImpl, Parser.sourceSeeking.IMediaSeeking_iface);
	}

	static inline WAVEParserImpl impl_from_IBaseFilter( IBaseFilter iface )
	{
	return CONTAINING_RECORD(iface, WAVEParserImpl, Parser.filter.IBaseFilter_iface);
	}

	static LONGLONG bytepos_to_duration(WAVEParserImpl *This, LONGLONG bytepos)
	{
	LONGLONG duration = BYTES_FROM_MEDIATIME(bytepos - This->StartOfFile);
	duration *= 10000000;
	duration /= (This->dwSampleSize * This->nSamplesPerSec);

	return duration;
	}

	static LONGLONG duration_to_bytepos(WAVEParserImpl *This, LONGLONG duration)
	{
	LONGLONG bytepos;

	bytepos = (This->dwSampleSize * This->nSamplesPerSec);
	bytepos *= duration;
	bytepos /= 10000000;
	bytepos += BYTES_FROM_MEDIATIME(This->StartOfFile);
	bytepos -= bytepos % This->dwSampleSize;

	return MEDIATIME_FROM_BYTES(bytepos);
	}

	static HRESULT WAVEParser_Sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR cookie)
	{
	WAVEParserImpl *This = iface;
	LPBYTE pbSrcStream = NULL;
	ULONG cbSrcStream = 0;
	REFERENCE_TIME tStart, tStop;
	HRESULT hr;
	IMediaSample *newsample = NULL;
	Parser_OutputPin *pOutputPin;
	PullPin *pin = This->Parser.pInputPin;

	IMediaSample_GetPointer(pSample, &pbSrcStream);
	hr = IMediaSample_GetTime(pSample, &tStart, &tStop);

	cbSrcStream = IMediaSample_GetActualDataLength(pSample);

	/* Flush occurring */
	if (cbSrcStream == 0)
	{
	TRACE(".. Why do I need you?\n");
	return S_OK;
	}

	pOutputPin = unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1]);

	if (SUCCEEDED(hr))
	hr = IMemAllocator_GetBuffer(pin->pAlloc, &newsample, NULL, NULL, 0);

	if (SUCCEEDED(hr))
	{
	LONGLONG rtSampleStart = pin->rtNext;
	/* Add 4 for the next header, which should hopefully work */
	LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(newsample));

	if (rtSampleStop > pin->rtStop)
	rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));

	hr = IMediaSample_SetTime(newsample, &rtSampleStart, &rtSampleStop);

	pin->rtCurrent = pin->rtNext;
	pin->rtNext = rtSampleStop;

	IMediaSample_SetPreroll(newsample, 0);
	IMediaSample_SetDiscontinuity(newsample, 0);
	IMediaSample_SetSyncPoint(newsample, 1);

	hr = IAsyncReader_Request(pin->pReader, newsample, 0);
	}

	if (SUCCEEDED(hr))
	{
	REFERENCE_TIME tAviStart, tAviStop;

	IMediaSample_SetSyncPoint(pSample, TRUE);
	pOutputPin->dwSamplesProcessed++;

	tAviStart = bytepos_to_duration(This, tStart);
	tAviStop = bytepos_to_duration(This, tStart + MEDIATIME_FROM_BYTES(IMediaSample_GetActualDataLength(pSample)));

	IMediaSample_SetTime(pSample, &tAviStart, &tAviStop);

	hr = BaseOutputPinImpl_Deliver(&pOutputPin->pin, pSample);
	if (hr != S_OK && hr != S_FALSE && hr != VFW_E_WRONG_STATE)
	ERR("Error sending sample (%x)\n", hr);
	else if (hr != S_OK)
	/* Unset progression if denied! */
	This->Parser.pInputPin->rtCurrent = tStart;
	}

	if (tStop >= This->EndOfFile \|\| (bytepos_to_duration(This, tStop) >= This->Parser.sourceSeeking.llStop) \|\| hr == VFW_E_NOT_CONNECTED)
	{
	unsigned 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 %u\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 WAVEParser_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
	{
	if (!IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream))
	return S_FALSE;
	if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_WAVE))
	return S_OK;
	if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_AU) \|\| IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_AIFF))
	FIXME("AU and AIFF files not supported yet!\n");
	return S_FALSE;
	}

	static HRESULT WINAPI WAVEParserImpl_seek(IMediaSeeking *iface)
	{
	WAVEParserImpl *This = impl_from_IMediaSeeking(iface);
	PullPin *pPin = This->Parser.pInputPin;
	IPin *victim = NULL;
	LONGLONG newpos, curpos, endpos, bytepos;

	newpos = This->Parser.sourceSeeking.llCurrent;
	curpos = bytepos_to_duration(This, pPin->rtCurrent);
	endpos = bytepos_to_duration(This, This->EndOfFile);
	bytepos = duration_to_bytepos(This, newpos);

	if (newpos > endpos)
	{
	WARN("Requesting position %x%08x beyond end of stream %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(endpos>>32), (DWORD)endpos);
	return E_INVALIDARG;
	}

	if (curpos/1000000 == newpos/1000000)
	{
	TRACE("Requesting position %x%08x same as current position %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(curpos>>32), (DWORD)curpos);
	return S_OK;
	}

	TRACE("Moving sound to %08u bytes!\n", (DWORD)BYTES_FROM_MEDIATIME(bytepos));

	EnterCriticalSection(&pPin->thread_lock);
	IPin_BeginFlush(&pPin->pin.IPin_iface);

	/* Make sure this is done while stopped, BeginFlush takes care of this */
	EnterCriticalSection(&This->Parser.filter.csFilter);
	IPin_ConnectedTo(This->Parser.ppPins[1], &victim);
	if (victim)
	{
	IPin_NewSegment(victim, newpos, endpos, pPin->dRate);
	IPin_Release(victim);
	}

	pPin->rtStart = pPin->rtCurrent = bytepos;
	unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1])->dwSamplesProcessed = 0;
	LeaveCriticalSection(&This->Parser.filter.csFilter);

	TRACE("Done flushing\n");
	IPin_EndFlush(&pPin->pin.IPin_iface);
	LeaveCriticalSection(&pPin->thread_lock);

	return S_OK;
	}

	static HRESULT WAVEParser_InputPin_PreConnect(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props)
	{
	PullPin *This = impl_PullPin_from_IPin(iface);
	HRESULT hr;
	RIFFLIST list;
	RIFFCHUNK chunk;
	LONGLONG pos = 0; /* in bytes */
	PIN_INFO piOutput;
	AM_MEDIA_TYPE amt;
	WAVEParserImpl * pWAVEParser = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
	LONGLONG length, avail;

	piOutput.dir = PINDIR_OUTPUT;
	piOutput.pFilter = &pWAVEParser->Parser.filter.IBaseFilter_iface;
	lstrcpynW(piOutput.achName, wcsOutputPinName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));

	hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
	pos += sizeof(list);

	if (list.fcc != FOURCC_RIFF)
	{
	ERR("Input stream not a RIFF file\n");
	return E_FAIL;
	}
	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 != mmioFOURCC('W','A','V','E'))
	{
	ERR("Input stream not an WAVE RIFF file\n");
	return E_FAIL;
	}

	hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
	pos += sizeof(chunk);
	if (chunk.fcc != mmioFOURCC('f','m','t',' '))
	{
	ERR("Expected 'fmt ' chunk, but got %.04s\n", (LPSTR)&chunk.fcc);
	return E_FAIL;
	}

	amt.majortype = MEDIATYPE_Audio;
	amt.formattype = FORMAT_WaveFormatEx;
	amt.cbFormat = chunk.cb;
	amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
	amt.pUnk = NULL;
	hr = IAsyncReader_SyncRead(This->pReader, pos, amt.cbFormat, amt.pbFormat);
	amt.subtype = MEDIATYPE_Audio;
	amt.subtype.Data1 = ((WAVEFORMATEX*)amt.pbFormat)->wFormatTag;

	pos += chunk.cb;
	hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
	if (chunk.fcc == mmioFOURCC('f','a','c','t'))
	{
	FIXME("'fact' chunk not supported yet\n");
	pos += sizeof(chunk) + chunk.cb;
	hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(chunk), (BYTE *)&chunk);
	}
	if (chunk.fcc != mmioFOURCC('d','a','t','a'))
	{
	ERR("Expected 'data' chunk, but got %.04s\n", (LPSTR)&chunk.fcc);
	return E_FAIL;
	}

	if (hr == S_OK)
	{
	pWAVEParser->StartOfFile = MEDIATIME_FROM_BYTES(pos + sizeof(RIFFCHUNK));
	pWAVEParser->EndOfFile = MEDIATIME_FROM_BYTES(pos + chunk.cb + sizeof(RIFFCHUNK));
	}

	if (hr != S_OK)
	return E_FAIL;

	props->cbAlign = ((WAVEFORMATEX*)amt.pbFormat)->nBlockAlign;
	props->cbPrefix = 0;
	props->cbBuffer = 4096;
	props->cBuffers = 3;
	pWAVEParser->dwSampleSize = ((WAVEFORMATEX*)amt.pbFormat)->nBlockAlign;
	IAsyncReader_Length(This->pReader, &length, &avail);
	pWAVEParser->dwLength = length / (ULONGLONG)pWAVEParser->dwSampleSize;
	pWAVEParser->nSamplesPerSec = ((WAVEFORMATEX*)amt.pbFormat)->nSamplesPerSec;
	hr = Parser_AddPin(&(pWAVEParser->Parser), &piOutput, props, &amt);
	CoTaskMemFree(amt.pbFormat);

	pWAVEParser->Parser.sourceSeeking.llCurrent = 0;
	pWAVEParser->Parser.sourceSeeking.llStop = pWAVEParser->Parser.sourceSeeking.llDuration = bytepos_to_duration(pWAVEParser, pWAVEParser->EndOfFile);
	TRACE("Duration: %u seconds\n", (DWORD)(pWAVEParser->Parser.sourceSeeking.llDuration / (LONGLONG)10000000));

	This->rtStop = pWAVEParser->EndOfFile;
	This->rtStart = pWAVEParser->StartOfFile;

	TRACE("WAVE File ok\n");

	return hr;
	}

	static HRESULT WAVEParser_Cleanup(LPVOID iface)
	{
	WAVEParserImpl *This = iface;

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

	return S_OK;
	}

	static HRESULT WAVEParser_first_request(LPVOID iface)
	{
	WAVEParserImpl *This = iface;
	PullPin *pin = This->Parser.pInputPin;
	HRESULT hr;
	IMediaSample *sample;

	if (pin->rtCurrent >= pin->rtStop)
	{
	/* Last sample has already been queued, request nothing more */
	TRACE("Done!\n");
	return S_OK;
	}

	hr = IMemAllocator_GetBuffer(pin->pAlloc, &sample, NULL, NULL, 0);

	pin->rtNext = pin->rtCurrent;
	if (SUCCEEDED(hr))
	{
	LONGLONG rtSampleStart = pin->rtNext;
	/* Add 4 for the next header, which should hopefully work */
	LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(sample));
	Parser_OutputPin *outpin = unsafe_impl_Parser_OutputPin_from_IPin(This->Parser.ppPins[1]);

	if (rtSampleStop > pin->rtStop)
	rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));

	hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);

	pin->rtCurrent = pin->rtNext;
	pin->rtNext = rtSampleStop;

	IMediaSample_SetPreroll(sample, FALSE);
	if (!outpin->dwSamplesProcessed++)
	IMediaSample_SetDiscontinuity(sample, TRUE);
	else
	IMediaSample_SetDiscontinuity(sample, FALSE);

	hr = IAsyncReader_Request(pin->pReader, sample, 0);
	}
	if (FAILED(hr))
	ERR("Horsemen of the apocalypse came to bring error 0x%08x %p\n", hr, sample);

	return hr;
	}

	static HRESULT WAVEParser_disconnect(LPVOID iface)
	{
	/* TODO: Find and plug memory leaks */
	return S_OK;
	}

	static const IBaseFilterVtbl WAVEParser_Vtbl =
	{
	Parser_QueryInterface,
	Parser_AddRef,
	Parser_Release,
	Parser_GetClassID,
	Parser_Stop,
	Parser_Pause,
	Parser_Run,
	Parser_GetState,
	Parser_SetSyncSource,
	Parser_GetSyncSource,
	Parser_EnumPins,
	Parser_FindPin,
	Parser_QueryFilterInfo,
	Parser_JoinFilterGraph,
	Parser_QueryVendorInfo
	};

	HRESULT WAVEParser_create(IUnknown * pUnkOuter, LPVOID * ppv)
	{
	HRESULT hr;
	WAVEParserImpl * 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(WAVEParserImpl));

	hr = Parser_Create(&(This->Parser), &WAVEParser_Vtbl, &CLSID_WAVEParser, WAVEParser_Sample, WAVEParser_QueryAccept, WAVEParser_InputPin_PreConnect, WAVEParser_Cleanup, WAVEParser_disconnect, WAVEParser_first_request, NULL, NULL, WAVEParserImpl_seek, NULL);

	if (FAILED(hr))
	return hr;

	*ppv = This;

	return hr;
	}