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wine/dlls/mciavi32/mmoutput.c

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/*
* Digital video MCI Wine Driver
*
* Copyright 1999, 2000 Eric POUECH
* Copyright 2003 Dmitry Timoshkov
*
* 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 "private_mciavi.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mciavi);
static BOOL MCIAVI_GetInfoAudio(WINE_MCIAVI* wma, const MMCKINFO* mmckList, MMCKINFO *mmckStream)
{
MMCKINFO mmckInfo;
TRACE("ash.fccType='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_audio.fccType)),
HIBYTE(LOWORD(wma->ash_audio.fccType)),
LOBYTE(HIWORD(wma->ash_audio.fccType)),
HIBYTE(HIWORD(wma->ash_audio.fccType)));
if (wma->ash_audio.fccHandler) /* not all streams specify a handler */
TRACE("ash.fccHandler='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_audio.fccHandler)),
HIBYTE(LOWORD(wma->ash_audio.fccHandler)),
LOBYTE(HIWORD(wma->ash_audio.fccHandler)),
HIBYTE(HIWORD(wma->ash_audio.fccHandler)));
else
TRACE("ash.fccHandler=0, no handler specified\n");
TRACE("ash.dwFlags=%d\n", wma->ash_audio.dwFlags);
TRACE("ash.wPriority=%d\n", wma->ash_audio.wPriority);
TRACE("ash.wLanguage=%d\n", wma->ash_audio.wLanguage);
TRACE("ash.dwInitialFrames=%d\n", wma->ash_audio.dwInitialFrames);
TRACE("ash.dwScale=%d\n", wma->ash_audio.dwScale);
TRACE("ash.dwRate=%d\n", wma->ash_audio.dwRate);
TRACE("ash.dwStart=%d\n", wma->ash_audio.dwStart);
TRACE("ash.dwLength=%d\n", wma->ash_audio.dwLength);
TRACE("ash.dwSuggestedBufferSize=%d\n", wma->ash_audio.dwSuggestedBufferSize);
TRACE("ash.dwQuality=%d\n", wma->ash_audio.dwQuality);
TRACE("ash.dwSampleSize=%d\n", wma->ash_audio.dwSampleSize);
TRACE("ash.rcFrame=(%d,%d,%d,%d)\n", wma->ash_audio.rcFrame.top, wma->ash_audio.rcFrame.left,
wma->ash_audio.rcFrame.bottom, wma->ash_audio.rcFrame.right);
/* rewind to the start of the stream */
mmioAscend(wma->hFile, mmckStream, 0);
mmckInfo.ckid = ckidSTREAMFORMAT;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strf' chunk\n");
return FALSE;
}
if (mmckInfo.cksize < sizeof(WAVEFORMAT)) {
WARN("Size of strf chunk (%d) < audio format struct\n", mmckInfo.cksize);
return FALSE;
}
wma->lpWaveFormat = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
if (!wma->lpWaveFormat) {
WARN("Can't alloc WaveFormat\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)wma->lpWaveFormat, mmckInfo.cksize);
TRACE("waveFormat.wFormatTag=%d\n", wma->lpWaveFormat->wFormatTag);
TRACE("waveFormat.nChannels=%d\n", wma->lpWaveFormat->nChannels);
TRACE("waveFormat.nSamplesPerSec=%d\n", wma->lpWaveFormat->nSamplesPerSec);
TRACE("waveFormat.nAvgBytesPerSec=%d\n", wma->lpWaveFormat->nAvgBytesPerSec);
TRACE("waveFormat.nBlockAlign=%d\n", wma->lpWaveFormat->nBlockAlign);
TRACE("waveFormat.wBitsPerSample=%d\n", wma->lpWaveFormat->wBitsPerSample);
if (mmckInfo.cksize >= sizeof(WAVEFORMATEX))
TRACE("waveFormat.cbSize=%d\n", wma->lpWaveFormat->cbSize);
return TRUE;
}
static BOOL MCIAVI_GetInfoVideo(WINE_MCIAVI* wma, const MMCKINFO* mmckList, MMCKINFO* mmckStream)
{
MMCKINFO mmckInfo;
TRACE("ash.fccType='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_video.fccType)),
HIBYTE(LOWORD(wma->ash_video.fccType)),
LOBYTE(HIWORD(wma->ash_video.fccType)),
HIBYTE(HIWORD(wma->ash_video.fccType)));
TRACE("ash.fccHandler='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_video.fccHandler)),
HIBYTE(LOWORD(wma->ash_video.fccHandler)),
LOBYTE(HIWORD(wma->ash_video.fccHandler)),
HIBYTE(HIWORD(wma->ash_video.fccHandler)));
TRACE("ash.dwFlags=%d\n", wma->ash_video.dwFlags);
TRACE("ash.wPriority=%d\n", wma->ash_video.wPriority);
TRACE("ash.wLanguage=%d\n", wma->ash_video.wLanguage);
TRACE("ash.dwInitialFrames=%d\n", wma->ash_video.dwInitialFrames);
TRACE("ash.dwScale=%d\n", wma->ash_video.dwScale);
TRACE("ash.dwRate=%d\n", wma->ash_video.dwRate);
TRACE("ash.dwStart=%d\n", wma->ash_video.dwStart);
TRACE("ash.dwLength=%d\n", wma->ash_video.dwLength);
TRACE("ash.dwSuggestedBufferSize=%d\n", wma->ash_video.dwSuggestedBufferSize);
TRACE("ash.dwQuality=%d\n", wma->ash_video.dwQuality);
TRACE("ash.dwSampleSize=%d\n", wma->ash_video.dwSampleSize);
TRACE("ash.rcFrame=(%d,%d,%d,%d)\n", wma->ash_video.rcFrame.top, wma->ash_video.rcFrame.left,
wma->ash_video.rcFrame.bottom, wma->ash_video.rcFrame.right);
/* rewind to the start of the stream */
mmioAscend(wma->hFile, mmckStream, 0);
mmckInfo.ckid = ckidSTREAMFORMAT;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strf' chunk\n");
return FALSE;
}
wma->inbih = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
if (!wma->inbih) {
WARN("Can't alloc input BIH\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)wma->inbih, mmckInfo.cksize);
TRACE("bih.biSize=%d\n", wma->inbih->biSize);
TRACE("bih.biWidth=%d\n", wma->inbih->biWidth);
TRACE("bih.biHeight=%d\n", wma->inbih->biHeight);
TRACE("bih.biPlanes=%d\n", wma->inbih->biPlanes);
TRACE("bih.biBitCount=%d\n", wma->inbih->biBitCount);
TRACE("bih.biCompression=%x\n", wma->inbih->biCompression);
TRACE("bih.biSizeImage=%d\n", wma->inbih->biSizeImage);
TRACE("bih.biXPelsPerMeter=%d\n", wma->inbih->biXPelsPerMeter);
TRACE("bih.biYPelsPerMeter=%d\n", wma->inbih->biYPelsPerMeter);
TRACE("bih.biClrUsed=%d\n", wma->inbih->biClrUsed);
TRACE("bih.biClrImportant=%d\n", wma->inbih->biClrImportant);
wma->source.left = 0;
wma->source.top = 0;
wma->source.right = wma->inbih->biWidth;
wma->source.bottom = wma->inbih->biHeight;
wma->dest = wma->source;
return TRUE;
}
struct AviListBuild {
DWORD numVideoFrames;
DWORD numAudioAllocated;
DWORD numAudioBlocks;
DWORD inVideoSize;
DWORD inAudioSize;
};
static BOOL MCIAVI_AddFrame(WINE_MCIAVI* wma, LPMMCKINFO mmck,
struct AviListBuild* alb)
{
const BYTE *p;
DWORD stream_n;
DWORD twocc;
if (mmck->ckid == ckidAVIPADDING) return TRUE;
p = (const BYTE *)&mmck->ckid;
if (!isxdigit(p[0]) || !isxdigit(p[1]))
{
WARN("wrongly encoded stream #\n");
return FALSE;
}
stream_n = (p[0] <= '9') ? (p[0] - '0') : (tolower(p[0]) - 'a' + 10);
stream_n <<= 4;
stream_n |= (p[1] <= '9') ? (p[1] - '0') : (tolower(p[1]) - 'a' + 10);
TRACE("ckid %4.4s (stream #%d)\n", (LPSTR)&mmck->ckid, stream_n);
/* Some (rare?) AVI files have video streams name XXYY where XX = stream number and YY = TWOCC
* of the last 2 characters of the biCompression member of the BITMAPINFOHEADER structure.
* Ex: fccHandler = IV32 & biCompression = IV32 => stream name = XX32
* fccHandler = MSVC & biCompression = CRAM => stream name = XXAM
* Another possibility is that these TWOCC are simply ignored.
* Default to cktypeDIBcompressed when this case happens.
*/
twocc = TWOCCFromFOURCC(mmck->ckid);
if (twocc == TWOCCFromFOURCC(wma->inbih->biCompression))
twocc = cktypeDIBcompressed;
/* Also detect some chunks that seem to be used by Indeo videos where the chunk is named
* after the codec. */
else if (twocc == LOWORD(wma->ash_video.fccHandler))
twocc = cktypeDIBcompressed;
switch (twocc) {
case cktypeDIBbits:
case cktypeDIBcompressed:
case cktypePALchange:
if (stream_n != wma->video_stream_n)
{
TRACE("data belongs to another video stream #%d\n", stream_n);
return FALSE;
}
TRACE("Adding video frame[%d]: %d bytes\n",
alb->numVideoFrames, mmck->cksize);
if (alb->numVideoFrames < wma->dwPlayableVideoFrames) {
wma->lpVideoIndex[alb->numVideoFrames].dwOffset = mmck->dwDataOffset;
wma->lpVideoIndex[alb->numVideoFrames].dwSize = mmck->cksize;
if (alb->inVideoSize < mmck->cksize)
alb->inVideoSize = mmck->cksize;
alb->numVideoFrames++;
} else {
WARN("Too many video frames\n");
}
break;
case cktypeWAVEbytes:
if (stream_n != wma->audio_stream_n)
{
TRACE("data belongs to another audio stream #%d\n", stream_n);
return FALSE;
}
TRACE("Adding audio frame[%d]: %d bytes\n",
alb->numAudioBlocks, mmck->cksize);
if (wma->lpWaveFormat) {
if (alb->numAudioBlocks >= alb->numAudioAllocated) {
alb->numAudioAllocated += 32;
if (!wma->lpAudioIndex)
wma->lpAudioIndex = HeapAlloc(GetProcessHeap(), 0,
alb->numAudioAllocated * sizeof(struct MMIOPos));
else
wma->lpAudioIndex = HeapReAlloc(GetProcessHeap(), 0, wma->lpAudioIndex,
alb->numAudioAllocated * sizeof(struct MMIOPos));
if (!wma->lpAudioIndex) return FALSE;
}
wma->lpAudioIndex[alb->numAudioBlocks].dwOffset = mmck->dwDataOffset;
wma->lpAudioIndex[alb->numAudioBlocks].dwSize = mmck->cksize;
if (alb->inAudioSize < mmck->cksize)
alb->inAudioSize = mmck->cksize;
alb->numAudioBlocks++;
} else {
WARN("Wave chunk without wave format... discarding\n");
}
break;
default:
WARN("Unknown frame type %4.4s\n", (LPSTR)&mmck->ckid);
break;
}
return TRUE;
}
BOOL MCIAVI_GetInfo(WINE_MCIAVI* wma)
{
MMCKINFO ckMainRIFF;
MMCKINFO mmckHead;
MMCKINFO mmckList;
MMCKINFO mmckInfo;
AVIStreamHeader strh;
struct AviListBuild alb;
DWORD stream_n;
if (mmioDescend(wma->hFile, &ckMainRIFF, NULL, 0) != 0) {
WARN("Can't find 'RIFF' chunk\n");
return FALSE;
}
if ((ckMainRIFF.ckid != FOURCC_RIFF) || (ckMainRIFF.fccType != formtypeAVI)) {
WARN("Can't find 'AVI ' chunk\n");
return FALSE;
}
mmckHead.fccType = listtypeAVIHEADER;
if (mmioDescend(wma->hFile, &mmckHead, &ckMainRIFF, MMIO_FINDLIST) != 0) {
WARN("Can't find 'hdrl' list\n");
return FALSE;
}
mmckInfo.ckid = ckidAVIMAINHDR;
if (mmioDescend(wma->hFile, &mmckInfo, &mmckHead, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'avih' chunk\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)&wma->mah, sizeof(wma->mah));
TRACE("mah.dwMicroSecPerFrame=%d\n", wma->mah.dwMicroSecPerFrame);
TRACE("mah.dwMaxBytesPerSec=%d\n", wma->mah.dwMaxBytesPerSec);
TRACE("mah.dwPaddingGranularity=%d\n", wma->mah.dwPaddingGranularity);
TRACE("mah.dwFlags=%d\n", wma->mah.dwFlags);
TRACE("mah.dwTotalFrames=%d\n", wma->mah.dwTotalFrames);
TRACE("mah.dwInitialFrames=%d\n", wma->mah.dwInitialFrames);
TRACE("mah.dwStreams=%d\n", wma->mah.dwStreams);
TRACE("mah.dwSuggestedBufferSize=%d\n", wma->mah.dwSuggestedBufferSize);
TRACE("mah.dwWidth=%d\n", wma->mah.dwWidth);
TRACE("mah.dwHeight=%d\n", wma->mah.dwHeight);
mmioAscend(wma->hFile, &mmckInfo, 0);
TRACE("Start of streams\n");
wma->video_stream_n = 0;
wma->audio_stream_n = 0;
for (stream_n = 0; stream_n < wma->mah.dwStreams; stream_n++)
{
MMCKINFO mmckStream;
mmckList.fccType = listtypeSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckList, &mmckHead, MMIO_FINDLIST) != 0)
break;
mmckStream.ckid = ckidSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckStream, &mmckList, MMIO_FINDCHUNK) != 0)
{
WARN("Can't find 'strh' chunk\n");
continue;
}
mmioRead(wma->hFile, (LPSTR)&strh, sizeof(strh));
TRACE("Stream #%d fccType %4.4s\n", stream_n, (LPSTR)&strh.fccType);
if (strh.fccType == streamtypeVIDEO)
{
TRACE("found video stream\n");
if (wma->inbih)
WARN("ignoring another video stream\n");
else
{
wma->ash_video = strh;
if (!MCIAVI_GetInfoVideo(wma, &mmckList, &mmckStream))
return FALSE;
wma->video_stream_n = stream_n;
wma->dwSet |= 4;
}
}
else if (strh.fccType == streamtypeAUDIO)
{
TRACE("found audio stream\n");
if (wma->lpWaveFormat)
WARN("ignoring another audio stream\n");
else
{
wma->ash_audio = strh;
if (!MCIAVI_GetInfoAudio(wma, &mmckList, &mmckStream))
return FALSE;
wma->audio_stream_n = stream_n;
wma->dwSet |= 3;
}
}
else
TRACE("Unsupported stream type %4.4s\n", (LPSTR)&strh.fccType);
mmioAscend(wma->hFile, &mmckList, 0);
}
TRACE("End of streams\n");
mmioAscend(wma->hFile, &mmckHead, 0);
/* no need to read optional JUNK chunk */
mmckList.fccType = listtypeAVIMOVIE;
if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
WARN("Can't find 'movi' list\n");
return FALSE;
}
wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
if (!wma->lpVideoIndex) {
WARN("Can't alloc video index array\n");
return FALSE;
}
wma->dwPlayableAudioBlocks = 0;
wma->lpAudioIndex = NULL;
alb.numAudioBlocks = alb.numVideoFrames = 0;
alb.inVideoSize = alb.inAudioSize = 0;
alb.numAudioAllocated = 0;
while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
if (mmckInfo.fccType == listtypeAVIRECORD) {
MMCKINFO tmp;
while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
MCIAVI_AddFrame(wma, &tmp, &alb);
mmioAscend(wma->hFile, &tmp, 0);
}
} else {
MCIAVI_AddFrame(wma, &mmckInfo, &alb);
}
mmioAscend(wma->hFile, &mmckInfo, 0);
}
if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
WARN("AVI header says %d frames, we found %d video frames, reducing playable frames\n",
wma->dwPlayableVideoFrames, alb.numVideoFrames);
wma->dwPlayableVideoFrames = alb.numVideoFrames;
}
wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
WARN("inVideoSize=%d suggestedSize=%d\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
}
if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
WARN("inAudioSize=%d suggestedSize=%d\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
}
wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
if (!wma->indata) {
WARN("Can't alloc input buffer\n");
return FALSE;
}
return TRUE;
}
BOOL MCIAVI_OpenVideo(WINE_MCIAVI* wma)
{
HDC hDC;
DWORD outSize;
FOURCC fcc = wma->ash_video.fccHandler;
TRACE("fcc %4.4s\n", (LPSTR)&fcc);
wma->dwCachedFrame = -1;
/* get the right handle */
if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
/* try to get a decompressor for that type */
wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
if (!wma->hic) {
/* check for builtin DIB compressions */
fcc = wma->inbih->biCompression;
if ((fcc == mmioFOURCC('D','I','B',' ')) ||
(fcc == mmioFOURCC('R','L','E',' ')) ||
(fcc == BI_RGB) || (fcc == BI_RLE8) ||
(fcc == BI_RLE4) || (fcc == BI_BITFIELDS))
goto paint_frame;
WARN("Can't locate codec for the file\n");
return FALSE;
}
outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
if (!wma->outbih) {
WARN("Can't alloc output BIH\n");
return FALSE;
}
if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
WARN("Can't open decompressor\n");
return FALSE;
}
TRACE("bih.biSize=%d\n", wma->outbih->biSize);
TRACE("bih.biWidth=%d\n", wma->outbih->biWidth);
TRACE("bih.biHeight=%d\n", wma->outbih->biHeight);
TRACE("bih.biPlanes=%d\n", wma->outbih->biPlanes);
TRACE("bih.biBitCount=%d\n", wma->outbih->biBitCount);
TRACE("bih.biCompression=%x\n", wma->outbih->biCompression);
TRACE("bih.biSizeImage=%d\n", wma->outbih->biSizeImage);
TRACE("bih.biXPelsPerMeter=%d\n", wma->outbih->biXPelsPerMeter);
TRACE("bih.biYPelsPerMeter=%d\n", wma->outbih->biYPelsPerMeter);
TRACE("bih.biClrUsed=%d\n", wma->outbih->biClrUsed);
TRACE("bih.biClrImportant=%d\n", wma->outbih->biClrImportant);
wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
if (!wma->outdata) {
WARN("Can't alloc output buffer\n");
return FALSE;
}
if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
(DWORD_PTR)wma->inbih, (DWORD_PTR)wma->outbih) != ICERR_OK) {
WARN("Can't begin decompression\n");
return FALSE;
}
paint_frame:
hDC = wma->hWndPaint ? GetDC(wma->hWndPaint) : 0;
if (hDC)
{
MCIAVI_PaintFrame(wma, hDC);
ReleaseDC(wma->hWndPaint, hDC);
}
return TRUE;
}
static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
DWORD_PTR dwParam1, DWORD_PTR dwParam2)
{
WINE_MCIAVI *wma = MCIAVI_mciGetOpenDev(dwInstance);
if (!wma) return;
EnterCriticalSection(&wma->cs);
switch (uMsg) {
case WOM_OPEN:
case WOM_CLOSE:
break;
case WOM_DONE:
InterlockedIncrement(&wma->dwEventCount);
TRACE("Returning waveHdr=%lx\n", dwParam1);
SetEvent(wma->hEvent);
break;
default:
ERR("Unknown uMsg=%d\n", uMsg);
}
LeaveCriticalSection(&wma->cs);
}
DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
{
DWORD dwRet;
LPWAVEHDR waveHdr;
unsigned i;
dwRet = waveOutOpen((HWAVEOUT *)&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
(DWORD_PTR)MCIAVI_waveCallback, wma->wDevID, CALLBACK_FUNCTION);
if (dwRet != 0) {
TRACE("Can't open low level audio device %d\n", dwRet);
dwRet = MCIERR_DEVICE_OPEN;
wma->hWave = 0;
goto cleanUp;
}
/* FIXME: should set up a heuristic to compute the number of wave headers
* to be used...
*/
*nHdr = 7;
waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
*nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
if (!waveHdr) {
TRACE("Can't alloc wave headers\n");
dwRet = MCIERR_DEVICE_OPEN;
goto cleanUp;
}
for (i = 0; i < *nHdr; i++) {
/* other fields are zero:ed on allocation */
waveHdr[i].lpData = (char*)waveHdr +
*nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
dwRet = MCIERR_INTERNAL;
goto cleanUp;
}
}
if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video\n");
}
wma->dwCurrAudioBlock = 0;
wma->hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
wma->dwEventCount = *nHdr - 1;
*pWaveHdr = waveHdr;
cleanUp:
return dwRet;
}
void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
{
if (!wma->lpAudioIndex)
return;
TRACE("%d (ec=%u)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
/* push as many blocks as possible => audio gets priority */
while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
unsigned whidx = wma->dwCurrAudioBlock % nHdr;
ResetEvent(wma->hEvent);
if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
!wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
{
InterlockedIncrement(&wma->dwEventCount);
break;
}
mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
waveHdr[whidx].dwFlags &= ~WHDR_DONE;
waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
wma->dwCurrAudioBlock++;
}
}
double MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
{
void* pBitmapData;
LPBITMAPINFO pBitmapInfo;
if (!hDC || !wma->inbih)
return 0;
TRACE("Painting frame %u (cached %u)\n", wma->dwCurrVideoFrame, wma->dwCachedFrame);
if (wma->dwCurrVideoFrame != wma->dwCachedFrame)
{
if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
return 0;
if (wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize)
{
mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
if (wma->hic && ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
wma->outbih, wma->outdata) != ICERR_OK)
{
WARN("Decompression error\n");
return 0;
}
}
wma->dwCachedFrame = wma->dwCurrVideoFrame;
}
if (wma->hic) {
pBitmapData = wma->outdata;
pBitmapInfo = (LPBITMAPINFO)wma->outbih;
} else {
pBitmapData = wma->indata;
pBitmapInfo = (LPBITMAPINFO)wma->inbih;
}
StretchDIBits(hDC,
wma->dest.left, wma->dest.top,
wma->dest.right - wma->dest.left, wma->dest.bottom - wma->dest.top,
wma->source.left, wma->source.top,
wma->source.right - wma->source.left, wma->source.bottom - wma->source.top,
pBitmapData, pBitmapInfo, DIB_RGB_COLORS, SRCCOPY);
return (wma->ash_video.dwScale / (double)wma->ash_video.dwRate) * 1000000;
}
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