Sweden-Number/dlls/avifil32/getframe.c

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/*
* Copyright 2002 Michael G<EFBFBD>nnewig
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <assert.h>
#include "winbase.h"
#include "winnls.h"
#include "windowsx.h"
#include "vfw.h"
#include "avifile_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(avifile);
#ifndef DIBPTR
#define DIBPTR(lp) ((LPBYTE)(lp) + (lp)->biSize + \
(lp)->biClrUsed * sizeof(RGBQUAD))
#endif
/***********************************************************************/
static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
REFIID refiid, LPVOID *obj);
static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface);
static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
LONG lEnd, LONG lRate);
static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
LPBITMAPINFOHEADER lpbi,
LPVOID lpBits, INT x, INT y,
INT dx, INT dy);
struct ICOM_VTABLE(IGetFrame) igetframeVtbl = {
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
IGetFrame_fnQueryInterface,
IGetFrame_fnAddRef,
IGetFrame_fnRelease,
IGetFrame_fnGetFrame,
IGetFrame_fnBegin,
IGetFrame_fnEnd,
IGetFrame_fnSetFormat
};
typedef struct _IGetFrameImpl {
/* IUnknown stuff */
ICOM_VFIELD(IGetFrame);
DWORD ref;
/* IGetFrame stuff */
BOOL bFixedStream;
PAVISTREAM pStream;
LPVOID lpInBuffer;
DWORD cbInBuffer;
LPBITMAPINFOHEADER lpInFormat;
DWORD cbInFormat;
LONG lCurrentFrame;
LPBITMAPINFOHEADER lpOutFormat;
LPVOID lpOutBuffer;
HIC hic;
BOOL bResize;
DWORD x;
DWORD y;
DWORD dx;
DWORD dy;
BOOL bFormatChanges;
DWORD dwFormatChangeCount;
DWORD dwEditCount;
} IGetFrameImpl;
/***********************************************************************/
static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
{
if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
GlobalFreePtr(This->lpOutFormat);
This->lpOutFormat = NULL;
}
if (This->lpInFormat != NULL) {
GlobalFreePtr(This->lpInFormat);
This->lpInFormat = NULL;
}
if (This->hic != (HIC)NULL) {
if (This->bResize)
ICDecompressExEnd(This->hic);
else
ICDecompressEnd(This->hic);
ICClose(This->hic);
This->hic = (HIC)NULL;
}
}
PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
{
IGetFrameImpl *pg;
/* check parameter */
if (pStream == NULL)
return NULL;
pg = (IGetFrameImpl*)LocalAlloc(LPTR, sizeof(IGetFrameImpl));
if (pg != NULL) {
ICOM_VTBL(pg) = &igetframeVtbl;
pg->ref = 1;
pg->lCurrentFrame = -1;
pg->pStream = pStream;
IAVIStream_AddRef(pStream);
}
return (PGETFRAME)pg;
}
static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
REFIID refiid, LPVOID *obj)
{
ICOM_THIS(IGetFrameImpl,iface);
TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
if (IsEqualGUID(&IID_IUnknown, refiid) ||
IsEqualGUID(&IID_IGetFrame, refiid)) {
*obj = iface;
return S_OK;
}
return OLE_E_ENUM_NOMORE;
}
static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
{
ICOM_THIS(IGetFrameImpl,iface);
TRACE("(%p)\n", iface);
return ++(This->ref);
}
static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
{
ICOM_THIS(IGetFrameImpl,iface);
TRACE("(%p)\n", iface);
if (!--(This->ref)) {
AVIFILE_CloseCompressor(This);
if (This->pStream != NULL) {
AVIStreamRelease(This->pStream);
This->pStream = NULL;
}
LocalFree((HLOCAL)iface);
return 0;
}
return This->ref;
}
static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
{
ICOM_THIS(IGetFrameImpl,iface);
LONG readBytes;
LONG readSamples;
TRACE("(%p,%ld)\n", iface, lPos);
/* check state */
if (This->pStream == NULL)
return NULL;
if (This->lpInFormat == NULL)
return NULL;
/* Could stream have changed? */
if (! This->bFixedStream) {
AVISTREAMINFOW sInfo;
IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
if (sInfo.dwEditCount != This->dwEditCount) {
This->dwEditCount = sInfo.dwEditCount;
This->lCurrentFrame = -1;
}
if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
/* stream has changed */
if (This->lpOutFormat != NULL) {
BITMAPINFOHEADER bi;
memcpy(&bi, This->lpOutFormat, sizeof(bi));
AVIFILE_CloseCompressor(This);
if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
return NULL;
}
} else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
return NULL;
}
}
if (lPos != This->lCurrentFrame) {
LONG lNext = AVIStreamFindSample(This->pStream, lPos, FIND_KEY|FIND_PREV);
if (lNext == -1)
return NULL;
if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
lNext++;
for (; lNext < lPos; lNext++) {
/* new format for this frame? */
if (This->bFormatChanges) {
AVIStreamReadFormat(This->pStream, lNext, This->lpInFormat, &This->cbInFormat);
if (This->lpOutFormat != NULL) {
if (This->lpOutFormat->biBitCount <= 8)
ICDecompressGetPalette(This->hic, This->lpInFormat,
This->lpOutFormat);
}
}
/* read input frame */
while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
This->cbInBuffer, &readBytes, &readSamples))) {
/* not enough memory for input buffer? */
readBytes = 0;
if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
return NULL;
if (This->cbInBuffer >= readBytes)
break;
This->lpInFormat = GlobalReAllocPtr(This->lpInFormat, This->cbInFormat + readBytes, 0);
if (This->lpInFormat == NULL)
return NULL;
This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
}
if (readSamples != 1)
return NULL;
if (readBytes != 0) {
This->lpInFormat->biSizeImage = readBytes;
/* nothing to decompress? */
if (This->hic == (HIC)NULL) {
This->lCurrentFrame = lPos;
return This->lpInFormat;
}
if (This->bResize) {
ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
This->lpInFormat->biWidth,This->lpInFormat->biHeight,
This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
This->dx,This->dy);
} else {
ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
This->lpOutFormat, This->lpOutBuffer);
}
}
} /* for (lNext < lPos) */
} /* if (This->lCurrentFrame != lPos) */
return (This->hic == (HIC)NULL ? This->lpInFormat : This->lpOutFormat);
}
static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
LONG lEnd, LONG lRate)
{
ICOM_THIS(IGetFrameImpl,iface);
TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
This->bFixedStream = TRUE;
return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
}
static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
{
ICOM_THIS(IGetFrameImpl,iface);
TRACE("(%p)\n", iface);
This->bFixedStream = FALSE;
return AVIERR_OK;
}
static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
LPBITMAPINFOHEADER lpbiWanted,
LPVOID lpBits, INT x, INT y,
INT dx, INT dy)
{
ICOM_THIS(IGetFrameImpl,iface);
AVISTREAMINFOW sInfo;
LPBITMAPINFOHEADER lpbi = lpbiWanted;
BOOL bBestDisplay = FALSE;
TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
x, y, dx, dy);
if (This->pStream == NULL)
return AVIERR_ERROR;
if ((LONG)lpbiWanted == AVIGETFRAMEF_BESTDISPLAYFMT) {
lpbi = NULL;
bBestDisplay = TRUE;
}
IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
if (sInfo.fccType != streamtypeVIDEO)
return AVIERR_UNSUPPORTED;
This->bFormatChanges =
(sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
This->dwEditCount = sInfo.dwEditCount;
This->lCurrentFrame = -1;
/* get input format from stream */
if (This->lpInFormat == NULL) {
HRESULT hr;
This->cbInBuffer = sInfo.dwSuggestedBufferSize;
if (This->cbInBuffer == 0)
This->cbInBuffer = 1024;
AVIStreamFormatSize(This->pStream, sInfo.dwStart, &This->cbInFormat);
This->lpInFormat =
(LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, This->cbInFormat + This->cbInBuffer);
if (This->lpInFormat == NULL) {
AVIFILE_CloseCompressor(This);
return AVIERR_MEMORY;
}
hr = AVIStreamReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
if (FAILED(hr)) {
AVIFILE_CloseCompressor(This);
return hr;
}
This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
}
/* check input format */
if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
if (This->lpInFormat->biSizeImage == 0 &&
This->lpInFormat->biCompression == BI_RGB) {
This->lpInFormat->biSizeImage =
DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
}
/* only to pass through? */
if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
if (lpbi == NULL ||
(lpbi->biCompression == BI_RGB &&
lpbi->biWidth == This->lpInFormat->biWidth &&
lpbi->biHeight == This->lpInFormat->biHeight &&
lpbi->biBitCount == This->lpInFormat->biBitCount)) {
This->lpOutFormat = This->lpInFormat;
This->lpOutBuffer = DIBPTR(This->lpInFormat);
return AVIERR_OK;
}
}
/* need memory for output format? */
if (This->lpOutFormat == NULL) {
This->lpOutFormat =
(LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
+ 256 * sizeof(RGBQUAD));
if (This->lpOutFormat == NULL) {
AVIFILE_CloseCompressor(This);
return AVIERR_MEMORY;
}
}
/* need handle to video compressor */
if (This->hic == (HIC)NULL) {
FOURCC fccHandler;
if (This->lpInFormat->biCompression == BI_RGB)
fccHandler = comptypeDIB;
else if (This->lpInFormat->biCompression == BI_RLE8)
fccHandler = mmioFOURCC('R','L','E',' ');
else
fccHandler = sInfo.fccHandler;
if (lpbi != NULL) {
if (lpbi->biWidth == 0)
lpbi->biWidth = This->lpInFormat->biWidth;
if (lpbi->biHeight == 0)
lpbi->biHeight = This->lpInFormat->biHeight;
}
This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
if (This->hic == (HIC)NULL) {
AVIFILE_CloseCompressor(This);
return AVIERR_NOCOMPRESSOR;
}
}
/* output format given? */
if (lpbi != NULL) {
/* check the given output format ... */
if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
lpbi->biClrUsed = 1u << lpbi->biBitCount;
/* ... and remember it */
memcpy(This->lpOutFormat, lpbi,
lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
if (lpbi->biBitCount <= 8)
ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
return AVIERR_OK;
} else {
if (bBestDisplay) {
ICGetDisplayFormat(This->hic, This->lpInFormat,
This->lpOutFormat, 0, dx, dy);
} else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
This->lpOutFormat) < 0) {
AVIFILE_CloseCompressor(This);
return AVIERR_NOCOMPRESSOR;
}
/* check output format */
if (This->lpOutFormat->biClrUsed == 0 &&
This->lpOutFormat->biBitCount <= 8)
This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
if (This->lpOutFormat->biSizeImage == 0 &&
This->lpOutFormat->biCompression == BI_RGB) {
This->lpOutFormat->biSizeImage =
DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
}
if (lpBits == NULL) {
register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
This->lpOutFormat =
(LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
if (This->lpOutFormat == NULL) {
AVIFILE_CloseCompressor(This);
return AVIERR_MEMORY;
}
This->lpOutBuffer = DIBPTR(This->lpOutFormat);
} else
This->lpOutBuffer = lpBits;
/* for user size was irrelevant */
if (dx == -1)
dx = This->lpOutFormat->biWidth;
if (dy == -1)
dy = This->lpOutFormat->biHeight;
/* need to resize? */
if (x != 0 || y != 0) {
if (dy == This->lpOutFormat->biHeight &&
dx == This->lpOutFormat->biWidth)
This->bResize = FALSE;
else
This->bResize = TRUE;
}
if (This->bResize) {
This->x = x;
This->y = y;
This->dx = dx;
This->dy = dy;
if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
0,This->lpInFormat->biWidth,
This->lpInFormat->biHeight,This->lpOutFormat,
This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
return AVIERR_OK;
} else if (ICDecompressBegin(This->hic, This->lpInFormat,
This->lpOutFormat) == ICERR_OK)
return AVIERR_OK;
AVIFILE_CloseCompressor(This);
return AVIERR_COMPRESSOR;
}
}
/***********************************************************************/