325 lines
9.9 KiB
C
325 lines
9.9 KiB
C
/*
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* ACM Wrapper
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*
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* Copyright 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "quartz_private.h"
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#include "uuids.h"
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#include "mmreg.h"
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#include "windef.h"
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#include "winbase.h"
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#include "dshow.h"
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#include "strmif.h"
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#include "vfwmsgs.h"
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#include "msacm.h"
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#include <assert.h>
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(quartz);
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typedef struct ACMWrapperImpl
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{
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TransformFilter tf;
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HACMSTREAM has;
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LPWAVEFORMATEX pWfOut;
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LONGLONG lasttime_real;
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LONGLONG lasttime_sent;
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} ACMWrapperImpl;
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static inline ACMWrapperImpl *impl_from_TransformFilter( TransformFilter *iface )
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{
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return CONTAINING_RECORD(iface, ACMWrapperImpl, tf);
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}
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static HRESULT WINAPI ACMWrapper_Receive(TransformFilter *tf, IMediaSample *pSample)
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{
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ACMWrapperImpl* This = impl_from_TransformFilter(tf);
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IMediaSample* pOutSample = NULL;
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DWORD cbDstStream, cbSrcStream;
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LPBYTE pbDstStream;
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LPBYTE pbSrcStream = NULL;
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ACMSTREAMHEADER ash;
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BOOL unprepare_header = FALSE, preroll;
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MMRESULT res;
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HRESULT hr;
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LONGLONG tStart = -1, tStop = -1, tMed;
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LONGLONG mtStart = -1, mtStop = -1, mtMed;
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hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
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if (FAILED(hr))
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{
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ERR("Cannot get pointer to sample data (%x)\n", hr);
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return hr;
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}
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preroll = (IMediaSample_IsPreroll(pSample) == S_OK);
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IMediaSample_GetTime(pSample, &tStart, &tStop);
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if (IMediaSample_GetMediaTime(pSample, &mtStart, &mtStop) != S_OK)
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mtStart = mtStop = -1;
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cbSrcStream = IMediaSample_GetActualDataLength(pSample);
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/* Prevent discontinuities when codecs 'absorb' data but not give anything back in return */
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if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
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{
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This->lasttime_real = tStart;
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This->lasttime_sent = tStart;
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}
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else if (This->lasttime_real == tStart)
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tStart = This->lasttime_sent;
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else
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WARN("Discontinuity\n");
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tMed = tStart;
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mtMed = mtStart;
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TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);
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ash.pbSrc = pbSrcStream;
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ash.cbSrcLength = cbSrcStream;
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while(hr == S_OK && ash.cbSrcLength)
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{
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hr = BaseOutputPinImpl_GetDeliveryBuffer(&This->tf.source, &pOutSample, NULL, NULL, 0);
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if (FAILED(hr))
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{
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ERR("Unable to get delivery buffer (%x)\n", hr);
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return hr;
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}
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IMediaSample_SetPreroll(pOutSample, preroll);
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hr = IMediaSample_SetActualDataLength(pOutSample, 0);
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assert(hr == S_OK);
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hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
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if (FAILED(hr)) {
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ERR("Unable to get pointer to buffer (%x)\n", hr);
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goto error;
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}
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cbDstStream = IMediaSample_GetSize(pOutSample);
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ash.cbStruct = sizeof(ash);
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ash.fdwStatus = 0;
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ash.dwUser = 0;
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ash.pbDst = pbDstStream;
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ash.cbDstLength = cbDstStream;
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if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
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ERR("Cannot prepare header %d\n", res);
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goto error;
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}
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unprepare_header = TRUE;
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if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
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{
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res = acmStreamConvert(This->has, &ash, ACM_STREAMCONVERTF_START);
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IMediaSample_SetDiscontinuity(pOutSample, TRUE);
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/* One sample could be converted to multiple packets */
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IMediaSample_SetDiscontinuity(pSample, FALSE);
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}
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else
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{
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res = acmStreamConvert(This->has, &ash, 0);
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IMediaSample_SetDiscontinuity(pOutSample, FALSE);
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}
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if (res)
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{
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if(res != MMSYSERR_MOREDATA)
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ERR("Cannot convert data header %d\n", res);
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goto error;
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}
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TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
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hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
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assert(hr == S_OK);
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/* Bug in acm codecs? It apparently uses the input, but doesn't necessarily output immediately */
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if (!ash.cbSrcLengthUsed)
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{
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WARN("Sample was skipped? Outputted: %u\n", ash.cbDstLengthUsed);
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ash.cbSrcLength = 0;
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goto error;
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}
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TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
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if (ash.cbSrcLengthUsed == cbSrcStream)
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{
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IMediaSample_SetTime(pOutSample, &tStart, &tStop);
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tStart = tMed = tStop;
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}
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else if (tStop != tStart)
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{
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tMed = tStop - tStart;
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tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
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IMediaSample_SetTime(pOutSample, &tStart, &tMed);
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tStart = tMed;
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}
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else
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{
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ERR("No valid timestamp found\n");
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IMediaSample_SetTime(pOutSample, NULL, NULL);
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}
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if (mtStart < 0) {
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IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
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} else if (ash.cbSrcLengthUsed == cbSrcStream) {
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IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtStop);
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mtStart = mtMed = mtStop;
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} else if (mtStop >= mtStart) {
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mtMed = mtStop - mtStart;
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mtMed = mtStart + mtMed * ash.cbSrcLengthUsed / cbSrcStream;
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IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtMed);
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mtStart = mtMed;
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} else {
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IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
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}
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TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
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hr = IMemInputPin_Receive(This->tf.source.pMemInputPin, pOutSample);
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if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
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if (FAILED(hr))
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ERR("Error sending sample (%x)\n", hr);
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goto error;
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}
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error:
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if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
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ERR("Cannot unprepare header %d\n", res);
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unprepare_header = FALSE;
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ash.pbSrc += ash.cbSrcLengthUsed;
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ash.cbSrcLength -= ash.cbSrcLengthUsed;
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IMediaSample_Release(pOutSample);
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pOutSample = NULL;
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}
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This->lasttime_real = tStop;
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This->lasttime_sent = tMed;
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return hr;
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}
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static BOOL is_audio_subtype(const GUID *guid)
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{
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return !memcmp(&guid->Data2, &MEDIATYPE_Audio.Data2, sizeof(GUID) - sizeof(int));
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}
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static HRESULT acm_wrapper_connect_sink(TransformFilter *iface, const AM_MEDIA_TYPE *mt)
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{
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ACMWrapperImpl *filter = impl_from_TransformFilter(iface);
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const WAVEFORMATEX *wfx = (WAVEFORMATEX *)mt->pbFormat;
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HACMSTREAM drv;
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MMRESULT res;
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if (!IsEqualGUID(&mt->majortype, &MEDIATYPE_Audio) || !is_audio_subtype(&mt->subtype)
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|| !IsEqualGUID(&mt->formattype, &FORMAT_WaveFormatEx) || !wfx
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|| wfx->wFormatTag == WAVE_FORMAT_PCM || wfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
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return VFW_E_TYPE_NOT_ACCEPTED;
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CopyMediaType(&filter->tf.pmt, mt);
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filter->tf.pmt.subtype.Data1 = WAVE_FORMAT_PCM;
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filter->pWfOut = (WAVEFORMATEX *)filter->tf.pmt.pbFormat;
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filter->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
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filter->pWfOut->wBitsPerSample = 16;
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filter->pWfOut->nBlockAlign = filter->pWfOut->wBitsPerSample * filter->pWfOut->nChannels / 8;
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filter->pWfOut->cbSize = 0;
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filter->pWfOut->nAvgBytesPerSec = filter->pWfOut->nChannels * filter->pWfOut->nSamplesPerSec
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* (filter->pWfOut->wBitsPerSample / 8);
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if ((res = acmStreamOpen(&drv, NULL, (WAVEFORMATEX *)wfx, filter->pWfOut, NULL, 0, 0, 0)))
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{
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ERR("Failed to open stream, error %u.\n", res);
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FreeMediaType(&filter->tf.pmt);
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return VFW_E_TYPE_NOT_ACCEPTED;
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}
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filter->has = drv;
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return S_OK;
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}
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static HRESULT WINAPI ACMWrapper_BreakConnect(TransformFilter *tf, PIN_DIRECTION dir)
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{
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ACMWrapperImpl *This = impl_from_TransformFilter(tf);
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TRACE("(%p)->(%i)\n", This,dir);
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if (dir == PINDIR_INPUT)
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{
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if (This->has)
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acmStreamClose(This->has, 0);
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This->has = 0;
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This->lasttime_real = This->lasttime_sent = -1;
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}
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return S_OK;
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}
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static HRESULT WINAPI ACMWrapper_DecideBufferSize(TransformFilter *tf, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
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{
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ACMWrapperImpl *pACM = impl_from_TransformFilter(tf);
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ALLOCATOR_PROPERTIES actual;
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if (!ppropInputRequest->cbAlign)
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ppropInputRequest->cbAlign = 1;
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if (ppropInputRequest->cbBuffer < pACM->pWfOut->nAvgBytesPerSec / 2)
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ppropInputRequest->cbBuffer = pACM->pWfOut->nAvgBytesPerSec / 2;
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if (!ppropInputRequest->cBuffers)
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ppropInputRequest->cBuffers = 1;
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return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
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}
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static const TransformFilterFuncTable ACMWrapper_FuncsTable = {
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.pfnDecideBufferSize = ACMWrapper_DecideBufferSize,
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.pfnReceive = ACMWrapper_Receive,
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.transform_connect_sink = acm_wrapper_connect_sink,
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.pfnBreakConnect = ACMWrapper_BreakConnect,
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};
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HRESULT ACMWrapper_create(IUnknown *outer, void **out)
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{
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HRESULT hr;
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ACMWrapperImpl* This;
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*out = NULL;
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hr = strmbase_transform_create(sizeof(ACMWrapperImpl), outer, &CLSID_ACMWrapper,
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&ACMWrapper_FuncsTable, (IBaseFilter **)&This);
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if (FAILED(hr))
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return hr;
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*out = &This->tf.filter.IUnknown_inner;
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This->lasttime_real = This->lasttime_sent = -1;
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return hr;
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}
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