Sweden-Number/dlls/msacm32/stream.c

492 lines
16 KiB
C
Raw Normal View History

1999-10-31 19:29:16 +01:00
/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* MSACM32 library
*
* Copyright 1998 Patrik Stridvall
1999-10-31 19:29:16 +01:00
* 1999 Eric Pouech
*
* 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
1999-10-31 19:29:16 +01:00
*/
/* TODO
* + asynchronous conversion is not implemented
* + callback/notification
* * acmStreamMessage
* + properly close ACM streams
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "mmsystem.h"
#define NOBITMAP
#include "mmreg.h"
#include "msacm.h"
#include "msacmdrv.h"
1999-10-31 19:29:16 +01:00
#include "wineacm.h"
WINE_DEFAULT_DEBUG_CHANNEL(msacm);
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
static PWINE_ACMSTREAM ACM_GetStream(HACMSTREAM has)
{
TRACE("(%p)\n", has);
1999-10-31 19:29:16 +01:00
return (PWINE_ACMSTREAM)has;
}
static BOOL ACM_ValidatePointers(PACMDRVSTREAMHEADER padsh)
{
/* check that pointers have not been modified */
return !(padsh->pbPreparedSrc != padsh->pbSrc ||
padsh->cbPreparedSrcLength < padsh->cbSrcLength ||
padsh->pbPreparedDst != padsh->pbDst ||
padsh->cbPreparedDstLength < padsh->cbDstLength);
}
/***********************************************************************
* acmStreamClose (MSACM32.@)
*/
1999-10-31 19:29:16 +01:00
MMRESULT WINAPI acmStreamClose(HACMSTREAM has, DWORD fdwClose)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
MMRESULT ret;
2002-06-01 01:06:46 +02:00
TRACE("(%p, %ld)\n", has, fdwClose);
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALHANDLE;
}
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_CLOSE, (LPARAM)&was->drvInst, 0);
1999-10-31 19:29:16 +01:00
if (ret == MMSYSERR_NOERROR) {
1999-12-05 03:17:18 +01:00
if (was->hAcmDriver)
2002-06-01 01:06:46 +02:00
acmDriverClose(was->hAcmDriver, 0L);
1999-10-31 19:29:16 +01:00
HeapFree(MSACM_hHeap, 0, was);
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamConvert (MSACM32.@)
*/
2002-06-01 01:06:46 +02:00
MMRESULT WINAPI acmStreamConvert(HACMSTREAM has, PACMSTREAMHEADER pash,
1999-10-31 19:29:16 +01:00
DWORD fdwConvert)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(%p, %p, %ld)\n", has, pash, fdwConvert);
2002-06-01 01:06:46 +02:00
if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALHANDLE;
}
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER)) {
WARN("invalid parameter\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALPARAM;
}
if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED)) {
WARN("unprepared header\n");
1999-10-31 19:29:16 +01:00
return ACMERR_UNPREPARED;
}
1999-10-31 19:29:16 +01:00
pash->cbSrcLengthUsed = 0;
pash->cbDstLengthUsed = 0;
1999-10-31 19:29:16 +01:00
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
if (!ACM_ValidatePointers(padsh)) {
WARN("invalid parameter\n");
return MMSYSERR_INVALPARAM;
2002-06-01 01:06:46 +02:00
}
1999-10-31 19:29:16 +01:00
padsh->fdwConvert = fdwConvert;
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_CONVERT, (LPARAM)&was->drvInst, (LPARAM)padsh);
1999-10-31 19:29:16 +01:00
if (ret == MMSYSERR_NOERROR) {
padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_DONE;
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamMessage (MSACM32.@)
*/
2002-06-01 01:06:46 +02:00
MMRESULT WINAPI acmStreamMessage(HACMSTREAM has, UINT uMsg, LPARAM lParam1,
1999-10-31 19:29:16 +01:00
LPARAM lParam2)
{
FIXME("(%p, %u, %Id, %Id): stub\n", has, uMsg, lParam1, lParam2);
1999-10-31 19:29:16 +01:00
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return MMSYSERR_ERROR;
}
/***********************************************************************
* acmStreamOpen (MSACM32.@)
*/
MMRESULT WINAPI acmStreamOpen(PHACMSTREAM phas, HACMDRIVER had,
PWAVEFORMATEX pwfxSrc, PWAVEFORMATEX pwfxDst,
PWAVEFILTER pwfltr, DWORD_PTR dwCallback,
DWORD_PTR dwInstance, DWORD fdwOpen)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
PWINE_ACMDRIVER wad;
MMRESULT ret;
int wfxSrcSize;
int wfxDstSize;
WAVEFORMATEX wfxSrc, wfxDst;
2002-06-01 01:06:46 +02:00
TRACE("(%p, %p, %p, %p, %p, %Id, %Id, %ld)\n",
1999-10-31 19:29:16 +01:00
phas, had, pwfxSrc, pwfxDst, pwfltr, dwCallback, dwInstance, fdwOpen);
/* NOTE: pwfxSrc and/or pwfxDst can point to a structure smaller than
* WAVEFORMATEX so don't use them directly when not sure */
if (pwfxSrc->wFormatTag == WAVE_FORMAT_PCM) {
memcpy(&wfxSrc, pwfxSrc, sizeof(PCMWAVEFORMAT));
wfxSrc.wBitsPerSample = pwfxSrc->wBitsPerSample;
wfxSrc.cbSize = 0;
pwfxSrc = &wfxSrc;
}
if (pwfxDst->wFormatTag == WAVE_FORMAT_PCM) {
memcpy(&wfxDst, pwfxDst, sizeof(PCMWAVEFORMAT));
wfxDst.wBitsPerSample = pwfxDst->wBitsPerSample;
wfxDst.cbSize = 0;
pwfxDst = &wfxDst;
}
TRACE("src [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
2002-06-01 01:06:46 +02:00
pwfxSrc->wFormatTag, pwfxSrc->nChannels, pwfxSrc->nSamplesPerSec, pwfxSrc->nAvgBytesPerSec,
1999-10-31 19:29:16 +01:00
pwfxSrc->nBlockAlign, pwfxSrc->wBitsPerSample, pwfxSrc->cbSize);
TRACE("dst [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
2002-06-01 01:06:46 +02:00
pwfxDst->wFormatTag, pwfxDst->nChannels, pwfxDst->nSamplesPerSec, pwfxDst->nAvgBytesPerSec,
1999-10-31 19:29:16 +01:00
pwfxDst->nBlockAlign, pwfxDst->wBitsPerSample, pwfxDst->cbSize);
/* (WS) In query mode, phas should be NULL. If it is not, then instead
* of returning an error we are making sure it is NULL, preventing some
* applications that pass garbage for phas from crashing.
*/
if (fdwOpen & ACM_STREAMOPENF_QUERY) phas = NULL;
if (pwfltr && (pwfxSrc->wFormatTag != pwfxDst->wFormatTag)) {
WARN("invalid parameter\n");
return MMSYSERR_INVALPARAM;
}
wfxSrcSize = wfxDstSize = sizeof(WAVEFORMATEX);
if (pwfxSrc->wFormatTag != WAVE_FORMAT_PCM) wfxSrcSize += pwfxSrc->cbSize;
if (pwfxDst->wFormatTag != WAVE_FORMAT_PCM) wfxDstSize += pwfxDst->cbSize;
1999-10-31 19:29:16 +01:00
2002-06-01 01:06:46 +02:00
was = HeapAlloc(MSACM_hHeap, 0, sizeof(*was) + wfxSrcSize + wfxDstSize +
((pwfltr) ? sizeof(WAVEFILTER) : 0));
if (was == NULL) {
WARN("no memory\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_NOMEM;
}
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
was->drvInst.cbStruct = sizeof(was->drvInst);
was->drvInst.pwfxSrc = (PWAVEFORMATEX)((LPSTR)was + sizeof(*was));
memcpy(was->drvInst.pwfxSrc, pwfxSrc, wfxSrcSize);
was->drvInst.pwfxDst = (PWAVEFORMATEX)((LPSTR)was + sizeof(*was) + wfxSrcSize);
memcpy(was->drvInst.pwfxDst, pwfxDst, wfxDstSize);
if (pwfltr) {
was->drvInst.pwfltr = (PWAVEFILTER)((LPSTR)was + sizeof(*was) + wfxSrcSize + wfxDstSize);
memcpy(was->drvInst.pwfltr, pwfltr, sizeof(WAVEFILTER));
} else {
was->drvInst.pwfltr = NULL;
}
2002-06-01 01:06:46 +02:00
was->drvInst.dwCallback = dwCallback;
1999-10-31 19:29:16 +01:00
was->drvInst.dwInstance = dwInstance;
was->drvInst.fdwOpen = fdwOpen;
2002-06-01 01:06:46 +02:00
was->drvInst.fdwDriver = 0L;
was->drvInst.dwDriver = 0L;
/* real value will be stored once ACMDM_STREAM_OPEN succeeds */
was->drvInst.has = 0L;
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
if (had) {
if (!(wad = MSACM_GetDriver(had))) {
ret = MMSYSERR_INVALPARAM;
goto errCleanUp;
}
2002-06-01 01:06:46 +02:00
was->obj.dwType = WINE_ACMOBJ_STREAM;
1999-10-31 19:29:16 +01:00
was->obj.pACMDriverID = wad->obj.pACMDriverID;
was->pDrv = wad;
1999-12-05 03:17:18 +01:00
was->hAcmDriver = 0; /* not to close it in acmStreamClose */
ret = MSACM_Message((HACMDRIVER)wad, ACMDM_STREAM_OPEN, (LPARAM)&was->drvInst, 0L);
1999-10-31 19:29:16 +01:00
if (ret != MMSYSERR_NOERROR)
goto errCleanUp;
} else {
PWINE_ACMDRIVERID wadi;
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
ret = ACMERR_NOTPOSSIBLE;
for (wadi = MSACM_pFirstACMDriverID; wadi; wadi = wadi->pNextACMDriverID) {
2002-06-01 01:06:46 +02:00
if ((wadi->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) ||
!MSACM_FindFormatTagInCache(wadi, pwfxSrc->wFormatTag, NULL) ||
!MSACM_FindFormatTagInCache(wadi, pwfxDst->wFormatTag, NULL))
continue;
1999-10-31 19:29:16 +01:00
ret = acmDriverOpen(&had, (HACMDRIVERID)wadi, 0L);
if (ret != MMSYSERR_NOERROR)
continue;
if ((wad = MSACM_GetDriver(had)) != 0) {
was->obj.dwType = WINE_ACMOBJ_STREAM;
was->obj.pACMDriverID = wad->obj.pACMDriverID;
was->pDrv = wad;
was->hAcmDriver = had;
2002-06-01 01:06:46 +02:00
ret = MSACM_Message((HACMDRIVER)wad, ACMDM_STREAM_OPEN, (LPARAM)&was->drvInst, 0L);
TRACE("%s => %08x\n", debugstr_w(wadi->pszDriverAlias), ret);
if (ret == MMSYSERR_NOERROR) {
if (fdwOpen & ACM_STREAMOPENF_QUERY) {
MSACM_Message((HACMDRIVER)wad, ACMDM_STREAM_CLOSE, (LPARAM)&was->drvInst, 0);
acmDriverClose(had, 0L);
}
break;
1999-10-31 19:29:16 +01:00
}
}
/* no match, close this acm driver and try next one */
acmDriverClose(had, 0L);
1999-10-31 19:29:16 +01:00
}
if (ret != MMSYSERR_NOERROR) {
ret = ACMERR_NOTPOSSIBLE;
goto errCleanUp;
}
}
ret = MMSYSERR_NOERROR;
was->drvInst.has = (HACMSTREAM)was;
if (!(fdwOpen & ACM_STREAMOPENF_QUERY)) {
if (phas)
*phas = (HACMSTREAM)was;
TRACE("=> (%d)\n", ret);
1999-10-31 19:29:16 +01:00
return ret;
}
2002-06-01 01:06:46 +02:00
errCleanUp:
if (phas)
2002-12-02 19:10:57 +01:00
*phas = NULL;
1999-10-31 19:29:16 +01:00
HeapFree(MSACM_hHeap, 0, was);
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamPrepareHeader (MSACM32.@)
*/
2002-06-01 01:06:46 +02:00
MMRESULT WINAPI acmStreamPrepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
1999-10-31 19:29:16 +01:00
DWORD fdwPrepare)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(%p, %p, %ld)\n", has, pash, fdwPrepare);
2002-06-01 01:06:46 +02:00
if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
return MMSYSERR_INVALHANDLE;
}
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER)) {
WARN("invalid parameter\n");
return MMSYSERR_INVALPARAM;
}
if (fdwPrepare) {
WARN("invalid use of reserved parameter\n");
return MMSYSERR_INVALFLAG;
}
if ((was->drvInst.pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM ||
was->drvInst.pwfxSrc->wFormatTag == WAVE_FORMAT_PCM) &&
pash->cbSrcLength < was->drvInst.pwfxSrc->nBlockAlign) {
WARN("source smaller than block align (%ld < %d)\n",
pash->cbSrcLength, was->drvInst.pwfxSrc->nBlockAlign);
return pash->cbSrcLength ? ACMERR_NOTPOSSIBLE : MMSYSERR_INVALPARAM;
}
1999-10-31 19:29:16 +01:00
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
padsh->fdwConvert = fdwPrepare;
padsh->padshNext = NULL;
padsh->fdwDriver = padsh->dwDriver = 0L;
padsh->fdwPrepared = 0;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = 0;
padsh->cbPreparedSrcLength = 0;
padsh->pbPreparedDst = 0;
padsh->cbPreparedDstLength = 0;
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_PREPARE, (LPARAM)&was->drvInst, (LPARAM)padsh);
1999-10-31 19:29:16 +01:00
if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
ret = MMSYSERR_NOERROR;
padsh->fdwStatus &= ~ACMSTREAMHEADER_STATUSF_INQUEUE;
1999-10-31 19:29:16 +01:00
padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_PREPARED;
padsh->fdwPrepared = padsh->fdwStatus;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = padsh->pbSrc;
padsh->cbPreparedSrcLength = padsh->cbSrcLength;
padsh->pbPreparedDst = padsh->pbDst;
padsh->cbPreparedDstLength = padsh->cbDstLength;
} else {
padsh->fdwPrepared = 0;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = 0;
padsh->cbPreparedSrcLength = 0;
padsh->pbPreparedDst = 0;
padsh->cbPreparedDstLength = 0;
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamReset (MSACM32.@)
*/
1999-10-31 19:29:16 +01:00
MMRESULT WINAPI acmStreamReset(HACMSTREAM has, DWORD fdwReset)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
TRACE("(%p, %ld)\n", has, fdwReset);
1999-10-31 19:29:16 +01:00
if (fdwReset) {
WARN("invalid flag\n");
1999-10-31 19:29:16 +01:00
ret = MMSYSERR_INVALFLAG;
} else if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALHANDLE;
} else if (was->drvInst.fdwOpen & ACM_STREAMOPENF_ASYNC) {
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_RESET, (LPARAM)&was->drvInst, 0);
1999-10-31 19:29:16 +01:00
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamSize (MSACM32.@)
*/
2002-06-01 01:06:46 +02:00
MMRESULT WINAPI acmStreamSize(HACMSTREAM has, DWORD cbInput,
1999-10-31 19:29:16 +01:00
LPDWORD pdwOutputBytes, DWORD fdwSize)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
ACMDRVSTREAMSIZE adss;
MMRESULT ret;
2002-06-01 01:06:46 +02:00
TRACE("(%p, %ld, %p, %ld)\n", has, cbInput, pdwOutputBytes, fdwSize);
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALHANDLE;
}
if ((fdwSize & ~ACM_STREAMSIZEF_QUERYMASK) != 0) {
WARN("invalid flag\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALFLAG;
}
*pdwOutputBytes = 0L;
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
case ACM_STREAMSIZEF_DESTINATION:
adss.cbDstLength = cbInput;
adss.cbSrcLength = 0;
break;
case ACM_STREAMSIZEF_SOURCE:
adss.cbSrcLength = cbInput;
adss.cbDstLength = 0;
break;
2002-06-01 01:06:46 +02:00
default:
WARN("invalid flag\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALFLAG;
}
2002-06-01 01:06:46 +02:00
1999-10-31 19:29:16 +01:00
adss.cbStruct = sizeof(adss);
adss.fdwSize = fdwSize;
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_SIZE,
(LPARAM)&was->drvInst, (LPARAM)&adss);
1999-10-31 19:29:16 +01:00
if (ret == MMSYSERR_NOERROR) {
switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
case ACM_STREAMSIZEF_DESTINATION:
*pdwOutputBytes = adss.cbSrcLength;
break;
case ACM_STREAMSIZEF_SOURCE:
*pdwOutputBytes = adss.cbDstLength;
break;
}
}
TRACE("=> (%d) [%lu]\n", ret, *pdwOutputBytes);
1999-10-31 19:29:16 +01:00
return ret;
}
/***********************************************************************
* acmStreamUnprepareHeader (MSACM32.@)
*/
2002-06-01 01:06:46 +02:00
MMRESULT WINAPI acmStreamUnprepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
1999-10-31 19:29:16 +01:00
DWORD fdwUnprepare)
{
1999-10-31 19:29:16 +01:00
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(%p, %p, %ld)\n", has, pash, fdwUnprepare);
2002-06-01 01:06:46 +02:00
if ((was = ACM_GetStream(has)) == NULL) {
WARN("invalid handle\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALHANDLE;
}
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER)) {
WARN("invalid parameter\n");
1999-10-31 19:29:16 +01:00
return MMSYSERR_INVALPARAM;
}
if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED)) {
WARN("unprepared header\n");
1999-10-31 19:29:16 +01:00
return ACMERR_UNPREPARED;
}
1999-10-31 19:29:16 +01:00
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
if (!ACM_ValidatePointers(padsh)) {
WARN("invalid parameter\n");
return MMSYSERR_INVALPARAM;
2002-06-01 01:06:46 +02:00
}
1999-10-31 19:29:16 +01:00
padsh->fdwConvert = fdwUnprepare;
ret = MSACM_Message((HACMDRIVER)was->pDrv, ACMDM_STREAM_UNPREPARE, (LPARAM)&was->drvInst, (LPARAM)padsh);
1999-10-31 19:29:16 +01:00
if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
ret = MMSYSERR_NOERROR;
padsh->fdwStatus &= ~(ACMSTREAMHEADER_STATUSF_INQUEUE|ACMSTREAMHEADER_STATUSF_PREPARED);
1999-10-31 19:29:16 +01:00
}
TRACE("=> (%d)\n", ret);
return ret;
}