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Sweden-Number/dlls/quartz/acmwrapper.c

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/*
* ACM Wrapper
*
* 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 "uuids.h"
#include "mmreg.h"
#include "windef.h"
#include "winbase.h"
#include "dshow.h"
#include "strmif.h"
#include "vfwmsgs.h"
#include "msacm.h"
#include <assert.h>
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
typedef struct ACMWrapperImpl
{
TransformFilter tf;
HACMSTREAM has;
LPWAVEFORMATEX pWfIn;
LPWAVEFORMATEX pWfOut;
LONGLONG lasttime_real;
LONGLONG lasttime_sent;
} ACMWrapperImpl;
static inline ACMWrapperImpl *impl_from_TransformFilter( TransformFilter *iface )
{
return CONTAINING_RECORD(iface, ACMWrapperImpl, tf);
}
static HRESULT WINAPI ACMWrapper_Receive(TransformFilter *tf, IMediaSample *pSample)
{
ACMWrapperImpl* This = impl_from_TransformFilter(tf);
IMediaSample* pOutSample = NULL;
DWORD cbDstStream, cbSrcStream;
LPBYTE pbDstStream;
LPBYTE pbSrcStream = NULL;
ACMSTREAMHEADER ash;
BOOL unprepare_header = FALSE, preroll;
MMRESULT res;
HRESULT hr;
LONGLONG tStart = -1, tStop = -1, tMed;
LONGLONG mtStart = -1, mtStop = -1, mtMed;
EnterCriticalSection(&This->tf.csReceive);
hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
if (FAILED(hr))
{
ERR("Cannot get pointer to sample data (%x)\n", hr);
LeaveCriticalSection(&This->tf.csReceive);
return hr;
}
preroll = (IMediaSample_IsPreroll(pSample) == S_OK);
IMediaSample_GetTime(pSample, &tStart, &tStop);
if (IMediaSample_GetMediaTime(pSample, &mtStart, &mtStop) != S_OK)
mtStart = mtStop = -1;
cbSrcStream = IMediaSample_GetActualDataLength(pSample);
/* Prevent discontinuities when codecs 'absorb' data but not give anything back in return */
if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
{
This->lasttime_real = tStart;
This->lasttime_sent = tStart;
}
else if (This->lasttime_real == tStart)
tStart = This->lasttime_sent;
else
WARN("Discontinuity\n");
tMed = tStart;
mtMed = mtStart;
TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);
ash.pbSrc = pbSrcStream;
ash.cbSrcLength = cbSrcStream;
while(hr == S_OK && ash.cbSrcLength)
{
hr = BaseOutputPinImpl_GetDeliveryBuffer(&This->tf.source, &pOutSample, NULL, NULL, 0);
if (FAILED(hr))
{
ERR("Unable to get delivery buffer (%x)\n", hr);
LeaveCriticalSection(&This->tf.csReceive);
return hr;
}
IMediaSample_SetPreroll(pOutSample, preroll);
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);
ash.cbStruct = sizeof(ash);
ash.fdwStatus = 0;
ash.dwUser = 0;
ash.pbDst = pbDstStream;
ash.cbDstLength = cbDstStream;
if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
ERR("Cannot prepare header %d\n", res);
goto error;
}
unprepare_header = TRUE;
if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
{
res = acmStreamConvert(This->has, &ash, ACM_STREAMCONVERTF_START);
IMediaSample_SetDiscontinuity(pOutSample, TRUE);
/* One sample could be converted to multiple packets */
IMediaSample_SetDiscontinuity(pSample, FALSE);
}
else
{
res = acmStreamConvert(This->has, &ash, 0);
IMediaSample_SetDiscontinuity(pOutSample, FALSE);
}
if (res)
{
if(res != MMSYSERR_MOREDATA)
ERR("Cannot convert data header %d\n", res);
goto error;
}
TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
assert(hr == S_OK);
/* Bug in acm codecs? It apparently uses the input, but doesn't necessarily output immediately */
if (!ash.cbSrcLengthUsed)
{
WARN("Sample was skipped? Outputted: %u\n", ash.cbDstLengthUsed);
ash.cbSrcLength = 0;
goto error;
}
TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
if (ash.cbSrcLengthUsed == cbSrcStream)
{
IMediaSample_SetTime(pOutSample, &tStart, &tStop);
tStart = tMed = tStop;
}
else if (tStop != tStart)
{
tMed = tStop - tStart;
tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
IMediaSample_SetTime(pOutSample, &tStart, &tMed);
tStart = tMed;
}
else
{
ERR("No valid timestamp found\n");
IMediaSample_SetTime(pOutSample, NULL, NULL);
}
if (mtStart < 0) {
IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
} else if (ash.cbSrcLengthUsed == cbSrcStream) {
IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtStop);
mtStart = mtMed = mtStop;
} else if (mtStop >= mtStart) {
mtMed = mtStop - mtStart;
mtMed = mtStart + mtMed * ash.cbSrcLengthUsed / cbSrcStream;
IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtMed);
mtStart = mtMed;
} else {
IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
}
TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
hr = IMemInputPin_Receive(This->tf.source.pMemInputPin, pOutSample);
if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
if (FAILED(hr))
ERR("Error sending sample (%x)\n", hr);
goto error;
}
error:
if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
ERR("Cannot unprepare header %d\n", res);
unprepare_header = FALSE;
ash.pbSrc += ash.cbSrcLengthUsed;
ash.cbSrcLength -= ash.cbSrcLengthUsed;
IMediaSample_Release(pOutSample);
pOutSample = NULL;
}
This->lasttime_real = tStop;
This->lasttime_sent = tMed;
LeaveCriticalSection(&This->tf.csReceive);
return hr;
}
static HRESULT WINAPI ACMWrapper_SetMediaType(TransformFilter *tf, PIN_DIRECTION dir, const AM_MEDIA_TYPE * pmt)
{
ACMWrapperImpl* This = impl_from_TransformFilter(tf);
MMRESULT res;
TRACE("(%p)->(%i %p)\n", This, dir, pmt);
if (dir != PINDIR_INPUT)
return S_OK;
/* Check root (GUID w/o FOURCC) */
if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
(!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
(IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
{
HACMSTREAM drv;
WAVEFORMATEX *wfx = (WAVEFORMATEX*)pmt->pbFormat;
AM_MEDIA_TYPE* outpmt = &This->tf.pmt;
if (!wfx || wfx->wFormatTag == WAVE_FORMAT_PCM || wfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
return VFW_E_TYPE_NOT_ACCEPTED;
FreeMediaType(outpmt);
This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
/* HACK */
/* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
/* pACMWrapper->pWfIn->nBlockAlign = 1; */
/* Set output audio data to PCM */
CopyMediaType(outpmt, pmt);
outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
This->pWfOut->wBitsPerSample = 16;
This->pWfOut->nBlockAlign = This->pWfOut->wBitsPerSample * This->pWfOut->nChannels / 8;
This->pWfOut->cbSize = 0;
This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
* (This->pWfOut->wBitsPerSample/8);
if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
{
This->has = drv;
TRACE("Connection accepted\n");
return S_OK;
}
else
FIXME("acmStreamOpen returned %d\n", res);
FreeMediaType(outpmt);
TRACE("Unable to find a suitable ACM decompressor\n");
}
TRACE("Connection refused\n");
return VFW_E_TYPE_NOT_ACCEPTED;
}
static HRESULT WINAPI ACMWrapper_CompleteConnect(TransformFilter *tf, PIN_DIRECTION dir, IPin *pin)
{
ACMWrapperImpl* This = impl_from_TransformFilter(tf);
MMRESULT res;
HACMSTREAM drv;
TRACE("(%p)\n", This);
if (dir != PINDIR_INPUT)
return S_OK;
if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
{
This->has = drv;
TRACE("Connection accepted\n");
return S_OK;
}
FIXME("acmStreamOpen returned %d\n", res);
TRACE("Unable to find a suitable ACM decompressor\n");
return VFW_E_TYPE_NOT_ACCEPTED;
}
static HRESULT WINAPI ACMWrapper_BreakConnect(TransformFilter *tf, PIN_DIRECTION dir)
{
ACMWrapperImpl *This = impl_from_TransformFilter(tf);
TRACE("(%p)->(%i)\n", This,dir);
if (dir == PINDIR_INPUT)
{
if (This->has)
acmStreamClose(This->has, 0);
This->has = 0;
This->lasttime_real = This->lasttime_sent = -1;
}
return S_OK;
}
static HRESULT WINAPI ACMWrapper_DecideBufferSize(TransformFilter *tf, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
{
ACMWrapperImpl *pACM = impl_from_TransformFilter(tf);
ALLOCATOR_PROPERTIES actual;
if (!ppropInputRequest->cbAlign)
ppropInputRequest->cbAlign = 1;
if (ppropInputRequest->cbBuffer < pACM->pWfOut->nAvgBytesPerSec / 2)
ppropInputRequest->cbBuffer = pACM->pWfOut->nAvgBytesPerSec / 2;
if (!ppropInputRequest->cBuffers)
ppropInputRequest->cBuffers = 1;
return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
}
static const TransformFilterFuncTable ACMWrapper_FuncsTable = {
ACMWrapper_DecideBufferSize,
NULL,
ACMWrapper_Receive,
NULL,
NULL,
ACMWrapper_SetMediaType,
ACMWrapper_CompleteConnect,
ACMWrapper_BreakConnect,
NULL,
NULL,
NULL,
NULL
};
HRESULT ACMWrapper_create(IUnknown *outer, void **out)
{
HRESULT hr;
ACMWrapperImpl* This;
*out = NULL;
hr = strmbase_transform_create(sizeof(ACMWrapperImpl), outer, &CLSID_ACMWrapper,
&ACMWrapper_FuncsTable, (IBaseFilter **)&This);
if (FAILED(hr))
return hr;
*out = &This->tf.filter.IUnknown_inner;
This->lasttime_real = This->lasttime_sent = -1;
return hr;
}
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