+++ /dev/null
-/*
- * Copyright 2002 Michael Günnewig
- *
- * 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 "avifile_private.h"
-
-/***********************************************************************/
-
-#define formtypeWAVE mmioFOURCC('W','A','V','E')
-#define ckidWAVEFORMAT mmioFOURCC('f','m','t',' ')
-#define ckidWAVEFACT mmioFOURCC('f','a','c','t')
-#define ckidWAVEDATA mmioFOURCC('d','a','t','a')
-
-/***********************************************************************/
-
-#define ENDIAN_SWAPWORD(x) ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
-#define ENDIAN_SWAPDWORD(x) (ENDIAN_SWAPWORD((x >> 16) & 0xFFFF) | \
- ENDIAN_SWAPWORD(x & 0xFFFF) << 16)
-
-#ifdef WORDS_BIGENDIAN
-#define BE2H_WORD(x) (x)
-#define BE2H_DWORD(x) (x)
-#define LE2H_WORD(x) ENDIAN_SWAPWORD(x)
-#define LE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
-#else
-#define BE2H_WORD(x) ENDIAN_SWAPWORD(x)
-#define BE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
-#define LE2H_WORD(x) (x)
-#define LE2H_DWORD(x) (x)
-#endif
-
-typedef struct {
- FOURCC fccType;
- DWORD offset;
- DWORD size;
- INT encoding;
- DWORD sampleRate;
- DWORD channels;
-} SUNAUDIOHEADER;
-
-#define AU_ENCODING_ULAW_8 1
-#define AU_ENCODING_PCM_8 2
-#define AU_ENCODING_PCM_16 3
-#define AU_ENCODING_PCM_24 4
-#define AU_ENCODING_PCM_32 5
-#define AU_ENCODING_FLOAT 6
-#define AU_ENCODING_DOUBLE 7
-#define AU_ENCODING_ADPCM_G721_32 23
-#define AU_ENCODING_ADPCM_G722 24
-#define AU_ENCODING_ADPCM_G723_24 25
-#define AU_ENCODING_ADPCM_G723_5 26
-#define AU_ENCODING_ALAW_8 27
-
-/***********************************************************************/
-
-typedef struct _IAVIFileImpl {
- IUnknown IUnknown_inner;
- IAVIFile IAVIFile_iface;
- IPersistFile IPersistFile_iface;
- IAVIStream IAVIStream_iface;
- IUnknown *outer_unk;
- LONG ref;
- /* IAVIFile, IAVIStream stuff... */
- AVIFILEINFOW fInfo;
- AVISTREAMINFOW sInfo;
-
- LPWAVEFORMATEX lpFormat;
- LONG cbFormat;
-
- MMCKINFO ckData;
-
- EXTRACHUNKS extra;
-
- /* IPersistFile stuff ... */
- HMMIO hmmio;
- LPWSTR szFileName;
- UINT uMode;
- BOOL fDirty;
-} IAVIFileImpl;
-
-/***********************************************************************/
-
-static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
-static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This);
-static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This);
-
-static inline IAVIFileImpl *impl_from_IUnknown(IUnknown *iface)
-{
- return CONTAINING_RECORD(iface, IAVIFileImpl, IUnknown_inner);
-}
-
-static HRESULT WINAPI IUnknown_fnQueryInterface(IUnknown *iface, REFIID riid, void **ret_iface)
-{
- IAVIFileImpl *This = impl_from_IUnknown(iface);
-
- TRACE("(%p,%s,%p)\n", This, debugstr_guid(riid), ret_iface);
-
- if (IsEqualGUID(&IID_IUnknown, riid))
- *ret_iface = &This->IUnknown_inner;
- else if (IsEqualGUID(&IID_IAVIFile, riid))
- *ret_iface = &This->IAVIFile_iface;
- else if (IsEqualGUID(&IID_IAVIStream, riid))
- *ret_iface = &This->IAVIStream_iface;
- else if (IsEqualGUID(&IID_IPersistFile, riid))
- *ret_iface = &This->IPersistFile_iface;
- else {
- WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ret_iface);
- *ret_iface = NULL;
- return E_NOINTERFACE;
- }
-
- /* Violation of the COM aggregation ref counting rule */
- IUnknown_AddRef(&This->IUnknown_inner);
- return S_OK;
-}
-
-static ULONG WINAPI IUnknown_fnAddRef(IUnknown *iface)
-{
- IAVIFileImpl *This = impl_from_IUnknown(iface);
- ULONG ref = InterlockedIncrement(&This->ref);
-
- TRACE("(%p) ref=%d\n", This, ref);
-
- return ref;
-}
-
-static ULONG WINAPI IUnknown_fnRelease(IUnknown *iface)
-{
- IAVIFileImpl *This = impl_from_IUnknown(iface);
- ULONG ref = InterlockedDecrement(&This->ref);
-
- TRACE("(%p) ref=%d\n", This, ref);
-
- if (!ref) {
- /* need to write headers to file */
- if (This->fDirty)
- AVIFILE_SaveFile(This);
-
- HeapFree(GetProcessHeap(), 0, This->lpFormat);
- This->lpFormat = NULL;
- This->cbFormat = 0;
- HeapFree(GetProcessHeap(), 0, This->extra.lp);
- This->extra.lp = NULL;
- This->extra.cb = 0;
- HeapFree(GetProcessHeap(), 0, This->szFileName);
- This->szFileName = NULL;
- if (This->hmmio) {
- mmioClose(This->hmmio, 0);
- This->hmmio = NULL;
- }
- HeapFree(GetProcessHeap(), 0, This);
- }
-
- return ref;
-}
-
-static const IUnknownVtbl unk_vtbl =
-{
- IUnknown_fnQueryInterface,
- IUnknown_fnAddRef,
- IUnknown_fnRelease
-};
-
-static inline IAVIFileImpl *impl_from_IAVIFile(IAVIFile *iface)
-{
- return CONTAINING_RECORD(iface, IAVIFileImpl, IAVIFile_iface);
-}
-
-static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID riid, void **ret_iface)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- return IUnknown_QueryInterface(This->outer_unk, riid, ret_iface);
-}
-
-static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- return IUnknown_AddRef(This->outer_unk);
-}
-
-static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- return IUnknown_Release(This->outer_unk);
-}
-
-static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, AVIFILEINFOW *afi, LONG size)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,%p,%d)\n",iface,afi,size);
-
- if (afi == NULL)
- return AVIERR_BADPARAM;
- if (size < 0)
- return AVIERR_BADSIZE;
-
- /* update file info */
- This->fInfo.dwFlags = 0;
- This->fInfo.dwCaps = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
- if (This->lpFormat != NULL) {
- assert(This->sInfo.dwScale != 0);
-
- This->fInfo.dwStreams = 1;
- This->fInfo.dwScale = This->sInfo.dwScale;
- This->fInfo.dwRate = This->sInfo.dwRate;
- This->fInfo.dwLength = This->sInfo.dwLength;
- This->fInfo.dwSuggestedBufferSize = This->ckData.cksize;
- This->fInfo.dwMaxBytesPerSec =
- MulDiv(This->sInfo.dwSampleSize,This->sInfo.dwRate,This->sInfo.dwScale);
- }
-
- memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
-
- if ((DWORD)size < sizeof(This->fInfo))
- return AVIERR_BUFFERTOOSMALL;
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, IAVIStream **avis, DWORD fccType,
- LONG lParam)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,%p,0x%08X,%d)\n", iface, avis, fccType, lParam);
-
- /* check parameter */
- if (avis == NULL)
- return AVIERR_BADPARAM;
-
- *avis = NULL;
-
- /* Does our stream exists? */
- if (lParam != 0 || This->fInfo.dwStreams == 0)
- return AVIERR_NODATA;
- if (fccType != 0 && fccType != streamtypeAUDIO)
- return AVIERR_NODATA;
-
- *avis = &This->IAVIStream_iface;
- IAVIStream_AddRef(*avis);
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface, IAVIStream **avis,
- AVISTREAMINFOW *asi)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,%p,%p)\n", iface, avis, asi);
-
- /* check parameters */
- if (avis == NULL || asi == NULL)
- return AVIERR_BADPARAM;
-
- *avis = NULL;
-
- /* We only support one audio stream */
- if (This->fInfo.dwStreams != 0 || This->lpFormat != NULL)
- return AVIERR_UNSUPPORTED;
- if (asi->fccType != streamtypeAUDIO)
- return AVIERR_UNSUPPORTED;
-
- /* Does the user have write permission? */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- This->cbFormat = 0;
- This->lpFormat = NULL;
-
- memcpy(&This->sInfo, asi, sizeof(This->sInfo));
-
- /* make sure streaminfo if okay for us */
- This->sInfo.fccHandler = 0;
- This->sInfo.dwFlags = 0;
- This->sInfo.dwCaps = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
- This->sInfo.dwStart = 0;
- This->sInfo.dwInitialFrames = 0;
- This->sInfo.dwFormatChangeCount = 0;
- SetRectEmpty(&This->sInfo.rcFrame);
-
- This->fInfo.dwStreams = 1;
- This->fInfo.dwScale = This->sInfo.dwScale;
- This->fInfo.dwRate = This->sInfo.dwRate;
- This->fInfo.dwLength = This->sInfo.dwLength;
-
- This->ckData.dwDataOffset = 0;
- This->ckData.cksize = 0;
-
- *avis = &This->IAVIStream_iface;
- IAVIStream_AddRef(*avis);
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid, void *lpData, LONG size)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,0x%08X,%p,%d)\n", iface, ckid, lpData, size);
-
- /* check parameters */
- if (lpData == NULL)
- return AVIERR_BADPARAM;
- if (size < 0)
- return AVIERR_BADSIZE;
-
- /* Do we have write permission? */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- This->fDirty = TRUE;
-
- return WriteExtraChunk(&This->extra, ckid, lpData, size);
-}
-
-static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile *iface, DWORD ckid, void *lpData, LONG *size)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,0x%08X,%p,%p)\n", iface, ckid, lpData, size);
-
- return ReadExtraChunk(&This->extra, ckid, lpData, size);
-}
-
-static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile *iface)
-{
- TRACE("(%p)\n",iface);
-
- /* This is only needed for interleaved files.
- * We have only one stream, which can't be interleaved.
- */
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile *iface, DWORD fccType, LONG lParam)
-{
- IAVIFileImpl *This = impl_from_IAVIFile(iface);
-
- TRACE("(%p,0x%08X,%d)\n", iface, fccType, lParam);
-
- /* check parameter */
- if (lParam < 0)
- return AVIERR_BADPARAM;
-
- /* Do we have our audio stream? */
- if (lParam != 0 || This->fInfo.dwStreams == 0 ||
- (fccType != 0 && fccType != streamtypeAUDIO))
- return AVIERR_NODATA;
-
- /* Have user write permissions? */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- HeapFree(GetProcessHeap(), 0, This->lpFormat);
- This->lpFormat = NULL;
- This->cbFormat = 0;
-
- /* update infos */
- This->ckData.dwDataOffset = 0;
- This->ckData.cksize = 0;
-
- This->sInfo.dwScale = 0;
- This->sInfo.dwRate = 0;
- This->sInfo.dwLength = 0;
- This->sInfo.dwSuggestedBufferSize = 0;
-
- This->fInfo.dwStreams = 0;
- This->fInfo.dwEditCount++;
-
- This->fDirty = TRUE;
-
- return AVIERR_OK;
-}
-
-static const struct IAVIFileVtbl iwavft = {
- IAVIFile_fnQueryInterface,
- IAVIFile_fnAddRef,
- IAVIFile_fnRelease,
- IAVIFile_fnInfo,
- IAVIFile_fnGetStream,
- IAVIFile_fnCreateStream,
- IAVIFile_fnWriteData,
- IAVIFile_fnReadData,
- IAVIFile_fnEndRecord,
- IAVIFile_fnDeleteStream
-};
-
-/***********************************************************************/
-
-static inline IAVIFileImpl *impl_from_IPersistFile(IPersistFile *iface)
-{
- return CONTAINING_RECORD(iface, IAVIFileImpl, IPersistFile_iface);
-}
-
-static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface, REFIID riid,
- void **ret_iface)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
-
- return IUnknown_QueryInterface(This->outer_unk, riid, ret_iface);
-}
-
-static ULONG WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
-
- return IUnknown_AddRef(This->outer_unk);
-}
-
-static ULONG WINAPI IPersistFile_fnRelease(IPersistFile *iface)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
-
- return IUnknown_Release(This->outer_unk);
-}
-
-static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
- LPCLSID pClassID)
-{
- TRACE("(%p,%p)\n", iface, pClassID);
-
- if (pClassID == NULL)
- return AVIERR_BADPARAM;
-
- *pClassID = CLSID_WAVFile;
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
-
- TRACE("(%p)\n", iface);
-
- return (This->fDirty ? S_OK : S_FALSE);
-}
-
-static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface, LPCOLESTR pszFileName, DWORD dwMode)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
- WCHAR wszStreamFmt[50];
- INT len;
-
- TRACE("(%p,%s,0x%08X)\n", iface, debugstr_w(pszFileName), dwMode);
-
- /* check parameter */
- if (pszFileName == NULL)
- return AVIERR_BADPARAM;
-
- if (This->hmmio != NULL)
- return AVIERR_ERROR; /* No reuse of this object for another file! */
-
- /* remember mode and name */
- This->uMode = dwMode;
-
- len = lstrlenW(pszFileName) + 1;
- This->szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
- if (This->szFileName == NULL)
- return AVIERR_MEMORY;
- lstrcpyW(This->szFileName, pszFileName);
-
- /* try to open the file */
- This->hmmio = mmioOpenW(This->szFileName, NULL, MMIO_ALLOCBUF | dwMode);
- if (This->hmmio == NULL) {
- /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
- LPSTR szFileName;
- len = WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1,
- NULL, 0, NULL, NULL);
- szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(CHAR));
- if (szFileName == NULL)
- return AVIERR_MEMORY;
-
- WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1, szFileName,
- len, NULL, NULL);
-
- This->hmmio = mmioOpenA(szFileName, NULL, MMIO_ALLOCBUF | dwMode);
- HeapFree(GetProcessHeap(), 0, szFileName);
- if (This->hmmio == NULL)
- return AVIERR_FILEOPEN;
- }
-
- memset(& This->fInfo, 0, sizeof(This->fInfo));
- memset(& This->sInfo, 0, sizeof(This->sInfo));
-
- LoadStringW(AVIFILE_hModule, IDS_WAVEFILETYPE, This->fInfo.szFileType,
- sizeof(This->fInfo.szFileType)/sizeof(This->fInfo.szFileType[0]));
- if (LoadStringW(AVIFILE_hModule, IDS_WAVESTREAMFORMAT,
- wszStreamFmt, sizeof(wszStreamFmt)/sizeof(wszStreamFmt[0])) > 0) {
- wsprintfW(This->sInfo.szName, wszStreamFmt,
- AVIFILE_BasenameW(This->szFileName));
- }
-
- /* should we create a new file? */
- if (dwMode & OF_CREATE) {
- /* nothing more to do */
- return AVIERR_OK;
- } else
- return AVIFILE_LoadFile(This);
-}
-
-static HRESULT WINAPI IPersistFile_fnSave(IPersistFile *iface,
- LPCOLESTR pszFileName,BOOL fRemember)
-{
- TRACE("(%p,%s,%d)\n", iface, debugstr_w(pszFileName), fRemember);
-
- /* We write directly to disk, so nothing to do. */
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile *iface,
- LPCOLESTR pszFileName)
-{
- TRACE("(%p,%s)\n", iface, debugstr_w(pszFileName));
-
- /* We write directly to disk, so nothing to do. */
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface, LPOLESTR *ppszFileName)
-{
- IAVIFileImpl *This = impl_from_IPersistFile(iface);
-
- TRACE("(%p,%p)\n", iface, ppszFileName);
-
- if (ppszFileName == NULL)
- return AVIERR_BADPARAM;
-
- *ppszFileName = NULL;
-
- if (This->szFileName) {
- int len = lstrlenW(This->szFileName) + 1;
-
- *ppszFileName = CoTaskMemAlloc(len * sizeof(WCHAR));
- if (*ppszFileName == NULL)
- return AVIERR_MEMORY;
-
- strcpyW(*ppszFileName, This->szFileName);
- }
-
- return AVIERR_OK;
-}
-
-static const struct IPersistFileVtbl iwavpft = {
- IPersistFile_fnQueryInterface,
- IPersistFile_fnAddRef,
- IPersistFile_fnRelease,
- IPersistFile_fnGetClassID,
- IPersistFile_fnIsDirty,
- IPersistFile_fnLoad,
- IPersistFile_fnSave,
- IPersistFile_fnSaveCompleted,
- IPersistFile_fnGetCurFile
-};
-
-/***********************************************************************/
-
-static inline IAVIFileImpl *impl_from_IAVIStream(IAVIStream *iface)
-{
- return CONTAINING_RECORD(iface, IAVIFileImpl, IAVIStream_iface);
-}
-
-static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface, REFIID riid, void **ret_iface)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- return IUnknown_QueryInterface(This->outer_unk, riid, ret_iface);
-}
-
-static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- return IUnknown_AddRef(This->outer_unk);
-}
-
-static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- return IUnknown_Release(This->outer_unk);
-}
-
-static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
- LPARAM lParam2)
-{
- TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
-
- /* This IAVIStream interface needs an WAVFile */
- return AVIERR_UNSUPPORTED;
-}
-
-static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream *iface, AVISTREAMINFOW *psi, LONG size)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%p,%d)\n", iface, psi, size);
-
- if (psi == NULL)
- return AVIERR_BADPARAM;
- if (size < 0)
- return AVIERR_BADSIZE;
-
- memcpy(psi, &This->sInfo, min((DWORD)size, sizeof(This->sInfo)));
-
- if ((DWORD)size < sizeof(This->sInfo))
- return AVIERR_BUFFERTOOSMALL;
- return AVIERR_OK;
-}
-
-static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos, LONG flags)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,0x%08X)\n",iface,pos,flags);
-
- /* Do we have data? */
- if (This->lpFormat == NULL)
- return -1;
-
- /* We don't have an index */
- if (flags & FIND_INDEX)
- return -1;
-
- if (flags & FIND_FROM_START) {
- pos = This->sInfo.dwStart;
- flags &= ~(FIND_FROM_START|FIND_PREV);
- flags |= FIND_NEXT;
- }
-
- if (flags & FIND_FORMAT) {
- if ((flags & FIND_NEXT) && pos > 0)
- pos = -1;
- else
- pos = 0;
- }
-
- if ((flags & FIND_RET) == FIND_LENGTH ||
- (flags & FIND_RET) == FIND_SIZE)
- return This->sInfo.dwSampleSize;
- if ((flags & FIND_RET) == FIND_OFFSET)
- return This->ckData.dwDataOffset + pos * This->sInfo.dwSampleSize;
-
- return pos;
-}
-
-static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos, void *format,
- LONG *formatsize)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,%p,%p)\n", iface, pos, format, formatsize);
-
- if (formatsize == NULL)
- return AVIERR_BADPARAM;
-
- /* only interested in needed buffersize? */
- if (format == NULL || *formatsize <= 0) {
- *formatsize = This->cbFormat;
-
- return AVIERR_OK;
- }
-
- /* copy initial format (only as much as will fit) */
- memcpy(format, This->lpFormat, min(*formatsize, This->cbFormat));
- if (*formatsize < This->cbFormat) {
- *formatsize = This->cbFormat;
- return AVIERR_BUFFERTOOSMALL;
- }
-
- *formatsize = This->cbFormat;
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos, void *format,
- LONG formatsize)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,%p,%d)\n", iface, pos, format, formatsize);
-
- /* check parameters */
- if (format == NULL || formatsize <= sizeof(PCMWAVEFORMAT))
- return AVIERR_BADPARAM;
-
- /* We can only do this to an empty wave file, but ignore call
- * if still same format */
- if (This->lpFormat != NULL) {
- if (formatsize != This->cbFormat ||
- memcmp(format, This->lpFormat, formatsize) != 0)
- return AVIERR_UNSUPPORTED;
-
- return AVIERR_OK;
- }
-
- /* only support start at position 0 */
- if (pos != 0)
- return AVIERR_UNSUPPORTED;
-
- /* Do we have write permission? */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- /* get memory for format and copy it */
- This->lpFormat = HeapAlloc(GetProcessHeap(), 0, formatsize);
- if (This->lpFormat == NULL)
- return AVIERR_MEMORY;
-
- This->cbFormat = formatsize;
- memcpy(This->lpFormat, format, formatsize);
-
- /* update info's about 'data' chunk */
- This->ckData.dwDataOffset = formatsize + 7 * sizeof(DWORD);
- This->ckData.cksize = 0;
-
- /* for non-pcm format we need also a 'fact' chunk */
- if (This->lpFormat->wFormatTag != WAVE_FORMAT_PCM)
- This->ckData.dwDataOffset += 3 * sizeof(DWORD);
-
- /* update stream and file info */
- This->sInfo.dwSampleSize = This->lpFormat->nBlockAlign;
- This->sInfo.dwScale = This->lpFormat->nBlockAlign;
- This->sInfo.dwRate = This->lpFormat->nAvgBytesPerSec;
- This->sInfo.dwLength = 0;
- This->sInfo.dwSuggestedBufferSize = 0;
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start, LONG samples, void *buffer,
- LONG buffersize, LONG *bytesread, LONG *samplesread)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,%d,%p,%d,%p,%p)\n", iface, start, samples, buffer,
- buffersize, bytesread, samplesread);
-
- /* clear return parameters if given */
- if (bytesread != NULL)
- *bytesread = 0;
- if (samplesread != NULL)
- *samplesread = 0;
-
- /* positions without data */
- if (start < 0 || (DWORD)start > This->sInfo.dwLength)
- return AVIERR_OK;
-
- /* check samples */
- if (samples < 0)
- samples = 0;
- if (buffersize > 0) {
- if (samples > 0)
- samples = min((DWORD)samples, buffersize / This->sInfo.dwSampleSize);
- else
- samples = buffersize / This->sInfo.dwSampleSize;
- }
-
- /* limit to end of stream */
- if ((DWORD)(start + samples) > This->sInfo.dwLength)
- samples = This->sInfo.dwLength - start;
-
- /* request only the sizes? */
- if (buffer == NULL || buffersize <= 0) {
- /* then I need at least one parameter for it */
- if (bytesread == NULL && samplesread == NULL)
- return AVIERR_BADPARAM;
-
- if (bytesread != NULL)
- *bytesread = samples * This->sInfo.dwSampleSize;
- if (samplesread != NULL)
- *samplesread = samples;
-
- return AVIERR_OK;
- }
-
- /* nothing to read? */
- if (samples == 0)
- return AVIERR_OK;
-
- /* Can I read at least one sample? */
- if ((DWORD)buffersize < This->sInfo.dwSampleSize)
- return AVIERR_BUFFERTOOSMALL;
-
- buffersize = samples * This->sInfo.dwSampleSize;
-
- if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
- + start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
- return AVIERR_FILEREAD;
- if (mmioRead(This->hmmio, buffer, buffersize) != buffersize)
- return AVIERR_FILEREAD;
-
- /* fill out return parameters if given */
- if (bytesread != NULL)
- *bytesread = buffersize;
- if (samplesread != NULL)
- *samplesread = samples;
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream *iface, LONG start, LONG samples, void *buffer,
- LONG buffersize, DWORD flags, LONG *sampwritten, LONG *byteswritten)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,%d,%p,%d,0x%08X,%p,%p)\n", iface, start, samples,
- buffer, buffersize, flags, sampwritten, byteswritten);
-
- /* clear return parameters if given */
- if (sampwritten != NULL)
- *sampwritten = 0;
- if (byteswritten != NULL)
- *byteswritten = 0;
-
- /* check parameters */
- if (buffer == NULL && (buffersize > 0 || samples > 0))
- return AVIERR_BADPARAM;
-
- /* Do we have write permission? */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- /* < 0 means "append" */
- if (start < 0)
- start = This->sInfo.dwStart + This->sInfo.dwLength;
-
- /* check buffersize -- must multiple of samplesize */
- if (buffersize & ~(This->sInfo.dwSampleSize - 1))
- return AVIERR_BADSIZE;
-
- /* do we have anything to write? */
- if (buffer != NULL && buffersize > 0) {
- This->fDirty = TRUE;
-
- if (mmioSeek(This->hmmio, This->ckData.dwDataOffset +
- start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
- return AVIERR_FILEWRITE;
- if (mmioWrite(This->hmmio, buffer, buffersize) != buffersize)
- return AVIERR_FILEWRITE;
-
- This->sInfo.dwLength = max(This->sInfo.dwLength, (DWORD)start + samples);
- This->ckData.cksize = max(This->ckData.cksize,
- start * This->sInfo.dwSampleSize + buffersize);
-
- /* fill out return parameters if given */
- if (sampwritten != NULL)
- *sampwritten = samples;
- if (byteswritten != NULL)
- *byteswritten = buffersize;
- }
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream *iface, LONG start, LONG samples)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- TRACE("(%p,%d,%d)\n", iface, start, samples);
-
- /* check parameters */
- if (start < 0 || samples < 0)
- return AVIERR_BADPARAM;
-
- /* Delete before start of stream? */
- if ((DWORD)(start + samples) < This->sInfo.dwStart)
- return AVIERR_OK;
-
- /* Delete after end of stream? */
- if ((DWORD)start > This->sInfo.dwLength)
- return AVIERR_OK;
-
- /* For the rest we need write permissions */
- if ((This->uMode & MMIO_RWMODE) == 0)
- return AVIERR_READONLY;
-
- if ((DWORD)(start + samples) >= This->sInfo.dwLength) {
- /* deletion at end */
- samples = This->sInfo.dwLength - start;
- This->sInfo.dwLength -= samples;
- This->ckData.cksize -= samples * This->sInfo.dwSampleSize;
- } else if ((DWORD)start <= This->sInfo.dwStart) {
- /* deletion at start */
- samples = This->sInfo.dwStart - start;
- start = This->sInfo.dwStart;
- This->ckData.dwDataOffset += samples * This->sInfo.dwSampleSize;
- This->ckData.cksize -= samples * This->sInfo.dwSampleSize;
- } else {
- /* deletion inside stream -- needs playlist and cue's */
- FIXME(": deletion inside of stream not supported!\n");
-
- return AVIERR_UNSUPPORTED;
- }
-
- This->fDirty = TRUE;
-
- return AVIERR_OK;
-}
-
-static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc, void *lp, LONG *lpread)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- return IAVIFile_ReadData(&This->IAVIFile_iface, fcc, lp, lpread);
-}
-
-static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc, void *lp, LONG size)
-{
- IAVIFileImpl *This = impl_from_IAVIStream(iface);
-
- return IAVIFile_WriteData(&This->IAVIFile_iface, fcc, lp, size);
-}
-
-static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
- LPAVISTREAMINFOW info, LONG infolen)
-{
- FIXME("(%p,%p,%d): stub\n", iface, info, infolen);
-
- return E_FAIL;
-}
-
-static const struct IAVIStreamVtbl iwavst = {
- IAVIStream_fnQueryInterface,
- IAVIStream_fnAddRef,
- IAVIStream_fnRelease,
- IAVIStream_fnCreate,
- IAVIStream_fnInfo,
- IAVIStream_fnFindSample,
- IAVIStream_fnReadFormat,
- IAVIStream_fnSetFormat,
- IAVIStream_fnRead,
- IAVIStream_fnWrite,
- IAVIStream_fnDelete,
- IAVIStream_fnReadData,
- IAVIStream_fnWriteData,
- IAVIStream_fnSetInfo
-};
-
-HRESULT AVIFILE_CreateWAVFile(IUnknown *outer_unk, REFIID riid, void **ret_iface)
-{
- IAVIFileImpl *pfile;
- HRESULT hr;
-
- *ret_iface = NULL;
-
- pfile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pfile));
- if (!pfile)
- return AVIERR_MEMORY;
-
- pfile->IUnknown_inner.lpVtbl = &unk_vtbl;
- pfile->IAVIFile_iface.lpVtbl = &iwavft;
- pfile->IPersistFile_iface.lpVtbl = &iwavpft;
- pfile->IAVIStream_iface.lpVtbl = &iwavst;
- pfile->ref = 1;
- if (outer_unk)
- pfile->outer_unk = outer_unk;
- else
- pfile->outer_unk = &pfile->IUnknown_inner;
-
- hr = IUnknown_QueryInterface(&pfile->IUnknown_inner, riid, ret_iface);
- IUnknown_Release(&pfile->IUnknown_inner);
-
- return hr;
-}
-
-/***********************************************************************/
-
-static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This)
-{
- MMCKINFO ckRIFF;
- MMCKINFO ck;
-
- This->sInfo.dwLength = 0; /* just to be sure */
- This->fDirty = FALSE;
-
- /* search for RIFF chunk */
- ckRIFF.fccType = 0; /* find any */
- if (mmioDescend(This->hmmio, &ckRIFF, NULL, MMIO_FINDRIFF) != S_OK) {
- return AVIFILE_LoadSunFile(This);
- }
-
- if (ckRIFF.fccType != formtypeWAVE)
- return AVIERR_BADFORMAT;
-
- /* search WAVE format chunk */
- ck.ckid = ckidWAVEFORMAT;
- if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck,
- &ckRIFF, MMIO_FINDCHUNK) != S_OK)
- return AVIERR_FILEREAD;
-
- /* get memory for format and read it */
- This->lpFormat = HeapAlloc(GetProcessHeap(), 0, ck.cksize);
- if (This->lpFormat == NULL)
- return AVIERR_FILEREAD;
- This->cbFormat = ck.cksize;
-
- if (mmioRead(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
- return AVIERR_FILEREAD;
- if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEREAD;
-
- /* Non-pcm formats have a fact chunk.
- * We don't need it, so simply add it to the extra chunks.
- */
-
- /* find the big data chunk */
- This->ckData.ckid = ckidWAVEDATA;
- if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &This->ckData,
- &ckRIFF, MMIO_FINDCHUNK) != S_OK)
- return AVIERR_FILEREAD;
-
- memset(&This->sInfo, 0, sizeof(This->sInfo));
- This->sInfo.fccType = streamtypeAUDIO;
- This->sInfo.dwRate = This->lpFormat->nAvgBytesPerSec;
- This->sInfo.dwSampleSize =
- This->sInfo.dwScale = This->lpFormat->nBlockAlign;
- This->sInfo.dwLength = This->ckData.cksize / This->lpFormat->nBlockAlign;
- This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
-
- This->fInfo.dwStreams = 1;
-
- if (mmioAscend(This->hmmio, &This->ckData, 0) != S_OK) {
- /* seems to be truncated */
- WARN(": file seems to be truncated!\n");
- This->ckData.cksize = mmioSeek(This->hmmio, 0, SEEK_END) -
- This->ckData.dwDataOffset;
- This->sInfo.dwLength = This->ckData.cksize / This->lpFormat->nBlockAlign;
- This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
- }
-
- /* ignore errors */
- FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck, &ckRIFF, 0);
-
- return AVIERR_OK;
-}
-
-static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This)
-{
- SUNAUDIOHEADER auhdr;
-
- mmioSeek(This->hmmio, 0, SEEK_SET);
- if (mmioRead(This->hmmio, (HPSTR)&auhdr, sizeof(auhdr)) != sizeof(auhdr))
- return AVIERR_FILEREAD;
-
- if (auhdr.fccType == 0x0064732E) {
- /* header in little endian */
- This->ckData.dwDataOffset = LE2H_DWORD(auhdr.offset);
- This->ckData.cksize = LE2H_DWORD(auhdr.size);
-
- auhdr.encoding = LE2H_DWORD(auhdr.encoding);
- auhdr.sampleRate = LE2H_DWORD(auhdr.sampleRate);
- auhdr.channels = LE2H_DWORD(auhdr.channels);
- } else if (auhdr.fccType == mmioFOURCC('.','s','n','d')) {
- /* header in big endian */
- This->ckData.dwDataOffset = BE2H_DWORD(auhdr.offset);
- This->ckData.cksize = BE2H_DWORD(auhdr.size);
-
- auhdr.encoding = BE2H_DWORD(auhdr.encoding);
- auhdr.sampleRate = BE2H_DWORD(auhdr.sampleRate);
- auhdr.channels = BE2H_DWORD(auhdr.channels);
- } else
- return AVIERR_FILEREAD;
-
- if (auhdr.channels < 1)
- return AVIERR_BADFORMAT;
-
- /* get size of header */
- switch(auhdr.encoding) {
- case AU_ENCODING_ADPCM_G721_32:
- This->cbFormat = sizeof(G721_ADPCMWAVEFORMAT); break;
- case AU_ENCODING_ADPCM_G723_24:
- This->cbFormat = sizeof(G723_ADPCMWAVEFORMAT); break;
- case AU_ENCODING_ADPCM_G722:
- case AU_ENCODING_ADPCM_G723_5:
- WARN("unsupported Sun audio format %d\n", auhdr.encoding);
- return AVIERR_UNSUPPORTED; /* FIXME */
- default:
- This->cbFormat = sizeof(WAVEFORMATEX); break;
- };
-
- This->lpFormat = HeapAlloc(GetProcessHeap(), 0, This->cbFormat);
- if (This->lpFormat == NULL)
- return AVIERR_MEMORY;
-
- This->lpFormat->nChannels = auhdr.channels;
- This->lpFormat->nSamplesPerSec = auhdr.sampleRate;
- switch(auhdr.encoding) {
- case AU_ENCODING_ULAW_8:
- This->lpFormat->wFormatTag = WAVE_FORMAT_MULAW;
- This->lpFormat->wBitsPerSample = 8;
- break;
- case AU_ENCODING_PCM_8:
- This->lpFormat->wFormatTag = WAVE_FORMAT_PCM;
- This->lpFormat->wBitsPerSample = 8;
- break;
- case AU_ENCODING_PCM_16:
- This->lpFormat->wFormatTag = WAVE_FORMAT_PCM;
- This->lpFormat->wBitsPerSample = 16;
- break;
- case AU_ENCODING_PCM_24:
- This->lpFormat->wFormatTag = WAVE_FORMAT_PCM;
- This->lpFormat->wBitsPerSample = 24;
- break;
- case AU_ENCODING_PCM_32:
- This->lpFormat->wFormatTag = WAVE_FORMAT_PCM;
- This->lpFormat->wBitsPerSample = 32;
- break;
- case AU_ENCODING_ALAW_8:
- This->lpFormat->wFormatTag = WAVE_FORMAT_ALAW;
- This->lpFormat->wBitsPerSample = 8;
- break;
- case AU_ENCODING_ADPCM_G721_32:
- This->lpFormat->wFormatTag = WAVE_FORMAT_G721_ADPCM;
- This->lpFormat->wBitsPerSample = (3*5*8);
- This->lpFormat->nBlockAlign = 15*15*8;
- This->lpFormat->cbSize = sizeof(WORD);
- ((LPG721_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
- break;
- case AU_ENCODING_ADPCM_G723_24:
- This->lpFormat->wFormatTag = WAVE_FORMAT_G723_ADPCM;
- This->lpFormat->wBitsPerSample = (3*5*8);
- This->lpFormat->nBlockAlign = 15*15*8;
- This->lpFormat->cbSize = 2*sizeof(WORD);
- ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->cbExtraSize = 0;
- ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
- break;
- default:
- WARN("unsupported Sun audio format %d\n", auhdr.encoding);
- return AVIERR_UNSUPPORTED;
- };
-
- This->lpFormat->nBlockAlign =
- (This->lpFormat->nChannels * This->lpFormat->wBitsPerSample) / 8;
- if (This->lpFormat->nBlockAlign == 0 && This->lpFormat->wBitsPerSample < 8)
- This->lpFormat->nBlockAlign++;
- This->lpFormat->nAvgBytesPerSec =
- This->lpFormat->nBlockAlign * This->lpFormat->nSamplesPerSec;
-
- This->fDirty = FALSE;
-
- This->sInfo.fccType = streamtypeAUDIO;
- This->sInfo.fccHandler = 0;
- This->sInfo.dwFlags = 0;
- This->sInfo.wPriority = 0;
- This->sInfo.wLanguage = 0;
- This->sInfo.dwInitialFrames = 0;
- This->sInfo.dwScale = This->lpFormat->nBlockAlign;
- This->sInfo.dwRate = This->lpFormat->nAvgBytesPerSec;
- This->sInfo.dwStart = 0;
- This->sInfo.dwLength =
- This->ckData.cksize / This->lpFormat->nBlockAlign;
- This->sInfo.dwSuggestedBufferSize = This->sInfo.dwLength;
- This->sInfo.dwSampleSize = This->lpFormat->nBlockAlign;
-
- This->fInfo.dwStreams = 1;
- This->fInfo.dwScale = 1;
- This->fInfo.dwRate = This->lpFormat->nSamplesPerSec;
- This->fInfo.dwLength =
- MulDiv(This->ckData.cksize, This->lpFormat->nSamplesPerSec,
- This->lpFormat->nAvgBytesPerSec);
-
- return AVIERR_OK;
-}
-
-static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This)
-{
- MMCKINFO ckRIFF;
- MMCKINFO ck;
-
- mmioSeek(This->hmmio, 0, SEEK_SET);
-
- /* create the RIFF chunk with formtype WAVE */
- ckRIFF.fccType = formtypeWAVE;
- ckRIFF.cksize = 0;
- if (mmioCreateChunk(This->hmmio, &ckRIFF, MMIO_CREATERIFF) != S_OK)
- return AVIERR_FILEWRITE;
-
- /* the next chunk is the format */
- ck.ckid = ckidWAVEFORMAT;
- ck.cksize = This->cbFormat;
- if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
- if (This->lpFormat != NULL && This->cbFormat > 0) {
- if (mmioWrite(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
- return AVIERR_FILEWRITE;
- }
- if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
-
- /* fact chunk is needed for non-pcm waveforms */
- if (This->lpFormat != NULL && This->cbFormat > sizeof(PCMWAVEFORMAT) &&
- This->lpFormat->wFormatTag != WAVE_FORMAT_PCM) {
- WAVEFORMATEX wfx;
- DWORD dwFactLength;
- HACMSTREAM has;
-
- /* try to open an appropriate audio codec to figure out
- * data for fact-chunk */
- wfx.wFormatTag = WAVE_FORMAT_PCM;
- if (acmFormatSuggest(NULL, This->lpFormat, &wfx,
- sizeof(wfx), ACM_FORMATSUGGESTF_WFORMATTAG)) {
- acmStreamOpen(&has, NULL, This->lpFormat, &wfx, NULL,
- 0, 0, ACM_STREAMOPENF_NONREALTIME);
- acmStreamSize(has, This->ckData.cksize, &dwFactLength,
- ACM_STREAMSIZEF_SOURCE);
- dwFactLength /= wfx.nBlockAlign;
- acmStreamClose(has, 0);
-
- /* create the fact chunk */
- ck.ckid = ckidWAVEFACT;
- ck.cksize = sizeof(dwFactLength);
-
- /* test for enough space before data chunk */
- if (mmioSeek(This->hmmio, 0, SEEK_CUR) > This->ckData.dwDataOffset
- - ck.cksize - 4 * sizeof(DWORD))
- return AVIERR_FILEWRITE;
- if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
- if (mmioWrite(This->hmmio, (HPSTR)&dwFactLength, ck.cksize) != ck.cksize)
- return AVIERR_FILEWRITE;
- if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
- } else
- ERR(": fact chunk is needed for non-pcm files -- currently no codec found, so skipped!\n");
- }
-
- /* if there was extra stuff, we need to fill it with JUNK */
- if (mmioSeek(This->hmmio, 0, SEEK_CUR) + 2 * sizeof(DWORD) < This->ckData.dwDataOffset) {
- ck.ckid = ckidAVIPADDING;
- ck.cksize = 0;
- if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
-
- if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
- - 2 * sizeof(DWORD), SEEK_SET) == -1)
- return AVIERR_FILEWRITE;
- if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
- }
-
- /* create the data chunk */
- ck.ckid = ckidWAVEDATA;
- ck.cksize = This->ckData.cksize;
- if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
- if (mmioSeek(This->hmmio, This->ckData.cksize, SEEK_CUR) == -1)
- return AVIERR_FILEWRITE;
- if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
- return AVIERR_FILEWRITE;
-
- /* some optional extra chunks? */
- if (This->extra.lp != NULL && This->extra.cb > 0) {
- /* chunk headers are already in structure */
- if (mmioWrite(This->hmmio, This->extra.lp, This->extra.cb) != This->extra.cb)
- return AVIERR_FILEWRITE;
- }
-
- /* close RIFF chunk */
- if (mmioAscend(This->hmmio, &ckRIFF, 0) != S_OK)
- return AVIERR_FILEWRITE;
- if (mmioFlush(This->hmmio, 0) != S_OK)
- return AVIERR_FILEWRITE;
-
- return AVIERR_OK;
-}
projects / reactos.git / blobdiff