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 "config.h"
#include "quartz_private.h"
#include "control_private.h"
#include "pin.h"
#include "uuids.h"
#include "mmreg.h"
#include "windef.h"
#include "winbase.h"
#include "dshow.h"
#include "strmif.h"
#include "vfwmsgs.h"
#include "evcode.h"
#include "msacm.h"
#include <assert.h>
#include "wine/unicode.h"
#include "wine/debug.h"
#include "transform.h"
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
/* FIXME: Improve buffers management */
#define OUTPUT_BUFFER_SIZE 15000
#define INPUT_BUFFER_SIZE 4096
typedef struct ACMWrapperImpl
{
TransformFilterImpl tf;
HACMSTREAM has;
LPWAVEFORMATEX pWfIn;
LPWAVEFORMATEX pWfOut;
BYTE buffer[INPUT_BUFFER_SIZE];
DWORD max_size;
DWORD current_size;
BOOL reinit_codec; /* FIXME: Should use sync points instead */
} ACMWrapperImpl;
static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilter, LPBYTE data, DWORD size)
{
ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
AM_MEDIA_TYPE amt;
HRESULT hr;
IMediaSample* pSample = NULL;
DWORD cbDstStream;
LPBYTE pbDstStream;
ACMSTREAMHEADER ash;
DWORD offset = 0;
BOOL stop = FALSE;
BOOL unprepare_header = FALSE;
MMRESULT res;
TRACE("(%p)->(%p,%ld)\n", This, data, size);
hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
if (FAILED(hr)) {
ERR("Unable to retrieve media type\n");
goto error;
}
while(!stop)
{
DWORD rem_buf = This->max_size - This->current_size;
DWORD rem_smp = size - offset;
DWORD copy_size = min(rem_buf, rem_smp);
memcpy(This->buffer + This->current_size, data + offset, copy_size);
This->current_size += copy_size;
offset += copy_size;
if (offset == size)
stop = TRUE;
if (This->current_size < This->max_size)
break;
hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pSample, NULL, NULL, 0);
if (FAILED(hr)) {
ERR("Unable to get delivery buffer (%lx)\n", hr);
goto error;
}
hr = IMediaSample_SetActualDataLength(pSample, 0);
assert(hr == S_OK);
hr = IMediaSample_GetPointer(pSample, &pbDstStream);
if (FAILED(hr)) {
ERR("Unable to get pointer to buffer (%lx)\n", hr);
goto error;
}
cbDstStream = IMediaSample_GetSize(pSample);
ash.cbStruct = sizeof(ash);
ash.fdwStatus = 0;
ash.dwUser = 0;
ash.pbSrc = This->buffer;
ash.cbSrcLength = This->current_size;
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 ((res = acmStreamConvert(This->has, &ash, This->reinit_codec ? ACM_STREAMCONVERTF_START : 0))) {
ERR("Cannot convert data header %d\n", res);
goto error;
}
This->reinit_codec = FALSE;
TRACE("used in %lu, used out %lu\n", ash.cbSrcLengthUsed, ash.cbDstLengthUsed);
hr = IMediaSample_SetActualDataLength(pSample, ash.cbDstLengthUsed);
assert(hr == S_OK);
if (ash.cbSrcLengthUsed < ash.cbSrcLength) {
This->current_size = ash.cbSrcLength - ash.cbSrcLengthUsed;
memmove(This->buffer, This->buffer + ash.cbSrcLengthUsed, This->current_size);
}
else
This->current_size = 0;
hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pSample);
if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
ERR("Error sending sample (%lx)\n", hr);
goto error;
}
error:
if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
ERR("Cannot unprepare header %d\n", res);
if (pSample)
IMediaSample_Release(pSample);
}
return hr;
}
static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
{
ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
MMRESULT res;
TRACE("(%p)->(%p)\n", This, pmt);
if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
(!memcmp(((char*)&pmt->subtype)+4, ((char*)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) && /* Check root (GUID w/o FOURCC) */
(IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
{
HACMSTREAM drv;
AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
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;
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This->pWfOut->nBlockAlign = 4;
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;
if ((res = acmStreamSize(drv, OUTPUT_BUFFER_SIZE, &This->max_size, ACM_STREAMSIZEF_DESTINATION))) {
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ERR("Cannot retrieve input buffer size error %d!\n", res);
This->max_size = INPUT_BUFFER_SIZE;
}
TRACE("input buffer size %ld\n", This->max_size);
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/* Update buffer size of media samples in output */
((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = OUTPUT_BUFFER_SIZE;
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 S_FALSE;
}
static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
{
ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
TRACE("(%p)->()\n", This);
if (This->has)
acmStreamClose(This->has, 0);
This->has = 0;
return S_OK;
}
TransformFuncsTable ACMWrapper_FuncsTable = {
NULL,
ACMWrapper_ProcessSampleData,
NULL,
ACMWrapper_ConnectInput,
ACMWrapper_Cleanup
};
HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
{
HRESULT hr;
ACMWrapperImpl* 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(ACMWrapperImpl));
This->has = 0;
This->reinit_codec = TRUE;
hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable);
if (FAILED(hr))
return hr;
*ppv = (LPVOID)This;
return hr;
}