wavfile.c 39.6 KB
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/*
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 * Copyright 2002 Michael Günnewig
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 *
 * 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
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include <assert.h>
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
#include "winnls.h"
#include "winerror.h"
#include "mmsystem.h"
#include "vfw.h"
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#include "msacm.h"
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#include "avifile_private.h"
#include "extrachunk.h"

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#include "wine/unicode.h"
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#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(avifile);

/***********************************************************************/

#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')

/***********************************************************************/

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#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

/***********************************************************************/

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static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
static ULONG   WINAPI IAVIFile_fnAddRef(IAVIFile* iface);
static ULONG   WINAPI IAVIFile_fnRelease(IAVIFile* iface);
static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile*iface);
static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);

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static const struct IAVIFileVtbl iwavft = {
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  IAVIFile_fnQueryInterface,
  IAVIFile_fnAddRef,
  IAVIFile_fnRelease,
  IAVIFile_fnInfo,
  IAVIFile_fnGetStream,
  IAVIFile_fnCreateStream,
  IAVIFile_fnWriteData,
  IAVIFile_fnReadData,
  IAVIFile_fnEndRecord,
  IAVIFile_fnDeleteStream
};

static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile*iface,REFIID refiid,LPVOID*obj);
static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile*iface);
static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile*iface);
static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile*iface,CLSID*pClassID);
static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile*iface);
static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile*iface,LPCOLESTR pszFileName,DWORD dwMode);
static HRESULT WINAPI IPersistFile_fnSave(IPersistFile*iface,LPCOLESTR pszFileName,BOOL fRemember);
static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile*iface,LPCOLESTR pszFileName);
static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile*iface,LPOLESTR*ppszFileName);

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static const struct IPersistFileVtbl iwavpft = {
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  IPersistFile_fnQueryInterface,
  IPersistFile_fnAddRef,
  IPersistFile_fnRelease,
  IPersistFile_fnGetClassID,
  IPersistFile_fnIsDirty,
  IPersistFile_fnLoad,
  IPersistFile_fnSave,
  IPersistFile_fnSaveCompleted,
  IPersistFile_fnGetCurFile
};

static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
static ULONG   WINAPI IAVIStream_fnAddRef(IAVIStream*iface);
static ULONG   WINAPI IAVIStream_fnRelease(IAVIStream* iface);
static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
static LONG    WINAPI IAVIStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
static HRESULT WINAPI IAVIStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);

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static const struct IAVIStreamVtbl iwavst = {
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  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
};

typedef struct _IAVIFileImpl IAVIFileImpl;

typedef struct _IPersistFileImpl {
  /* IUnknown stuff */
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  const IPersistFileVtbl *lpVtbl;
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  /* IPersistFile stuff */
  IAVIFileImpl     *paf;
} IPersistFileImpl;

typedef struct _IAVIStreamImpl {
  /* IUnknown stuff */
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  const IAVIStreamVtbl *lpVtbl;
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  /* IAVIStream stuff */
  IAVIFileImpl     *paf;
} IAVIStreamImpl;

struct _IAVIFileImpl {
  /* IUnknown stuff */
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  const IAVIFileVtbl *lpVtbl;
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  LONG		    ref;
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  /* IAVIFile, IAVIStream stuff... */
  IPersistFileImpl  iPersistFile;
  IAVIStreamImpl    iAVIStream;

  AVIFILEINFOW      fInfo;
  AVISTREAMINFOW    sInfo;

  LPWAVEFORMATEX    lpFormat;
  LONG              cbFormat;

  MMCKINFO          ckData;

  EXTRACHUNKS       extra;

  /* IPersistFile stuff ... */
  HMMIO             hmmio;
  LPWSTR            szFileName;
  UINT              uMode;
  BOOL              fDirty;
};

/***********************************************************************/

static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This);
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static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This);
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HRESULT AVIFILE_CreateWAVFile(REFIID riid, LPVOID *ppv)
{
  IAVIFileImpl *pfile;
  HRESULT       hr;

  assert(riid != NULL && ppv != NULL);

  *ppv = NULL;

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  pfile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IAVIFileImpl));
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  if (pfile == NULL)
    return AVIERR_MEMORY;

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  pfile->lpVtbl                = &iwavft;
  pfile->iPersistFile.lpVtbl   = &iwavpft;
  pfile->iAVIStream.lpVtbl     = &iwavst;
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  pfile->ref = 0;
  pfile->iPersistFile.paf = pfile;
  pfile->iAVIStream.paf   = pfile;

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  hr = IAVIFile_QueryInterface((IAVIFile*)pfile, riid, ppv);
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  if (FAILED(hr))
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    HeapFree(GetProcessHeap(), 0, pfile);
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  return hr;
}

static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
						LPVOID *obj)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);

  if (IsEqualGUID(&IID_IUnknown, refiid) ||
      IsEqualGUID(&IID_IAVIFile, refiid)) {
    *obj = iface;
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    IAVIFile_AddRef(iface);
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    return S_OK;
  } else if (This->fInfo.dwStreams == 1 &&
	     IsEqualGUID(&IID_IAVIStream, refiid)) {
    *obj = &This->iAVIStream;
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    IAVIFile_AddRef(iface);
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    return S_OK;
  } else if (IsEqualGUID(&IID_IPersistFile, refiid)) {
    *obj = &This->iPersistFile;
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    IAVIFile_AddRef(iface);
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    return S_OK;
  }

  return OLE_E_ENUM_NOMORE;
}

static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p)\n",iface);

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  return InterlockedIncrement(&This->ref);
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}

static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  ULONG ref = InterlockedDecrement(&This->ref);
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  TRACE("(%p)\n",iface);

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  if (!ref) {
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    if (This->fDirty) {
      /* need to write headers to file */
      AVIFILE_SaveFile(This);
    }

    if (This->lpFormat != NULL) {
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      HeapFree(GetProcessHeap(), 0, This->lpFormat);
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      This->lpFormat = NULL;
      This->cbFormat = 0;
    }
    if (This->extra.lp != NULL) {
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      HeapFree(GetProcessHeap(), 0, This->extra.lp);
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      This->extra.lp = NULL;
      This->extra.cb = 0;
    }
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    HeapFree(GetProcessHeap(), 0, This->szFileName);
    This->szFileName = NULL;
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    if (This->hmmio != NULL) {
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      mmioClose(This->hmmio, 0);
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      This->hmmio = NULL;
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    }

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    HeapFree(GetProcessHeap(), 0, This);
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    return 0;
  }
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  return ref;
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}

static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, LPAVIFILEINFOW afi,
				      LONG size)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,%p,%d)\n",iface,afi,size);
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  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) {
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    assert(This->sInfo.dwScale != 0);

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    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;
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    This->fInfo.dwMaxBytesPerSec =
      MulDiv(This->sInfo.dwSampleSize,This->sInfo.dwRate,This->sInfo.dwScale);
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  }

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  memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
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  if ((DWORD)size < sizeof(This->fInfo))
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    return AVIERR_BUFFERTOOSMALL;
  return AVIERR_OK;
}

static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
					   DWORD fccType, LONG lParam)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,%p,0x%08X,%d)\n", iface, avis, fccType, lParam);
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  /* 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 = (PAVISTREAM)&This->iAVIStream;
  IAVIFile_AddRef(iface);

  return AVIERR_OK;
}

static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
					      LPAVISTREAMINFOW asi)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  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;
  memset(&This->sInfo.rcFrame, 0, sizeof(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 = (PAVISTREAM)&This->iAVIStream;
  IAVIFile_AddRef(iface);

  return AVIERR_OK;
}

static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid,
					   LPVOID lpData, LONG size)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,0x%08X,%p,%d)\n", iface, ckid, lpData, size);
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  /* 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,
					  LPVOID lpData, LONG *size)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,0x%08X,%p,%p)\n", iface, ckid, lpData, size);
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  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)
{
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  IAVIFileImpl *This = (IAVIFileImpl *)iface;
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  TRACE("(%p,0x%08X,%d)\n", iface, fccType, lParam);
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  /* check parameter */
  if (lParam < 0)
    return AVIERR_BADPARAM;

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  /* Do we have our audio stream? */
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  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;

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  HeapFree(GetProcessHeap(), 0, This->lpFormat);
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  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 HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface,
						    REFIID refiid, LPVOID *obj)
{
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  IPersistFileImpl *This = (IPersistFileImpl *)iface;
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  assert(This->paf != NULL);

  return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
}

static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
{
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  IPersistFileImpl *This = (IPersistFileImpl *)iface;
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  assert(This->paf != NULL);

  return IAVIFile_AddRef((PAVIFILE)This->paf);
}

static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile *iface)
{
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  IPersistFileImpl *This = (IPersistFileImpl *)iface;
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  assert(This->paf != NULL);

  return IAVIFile_Release((PAVIFILE)This->paf);
}

static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
						LPCLSID pClassID)
{
  TRACE("(%p,%p)\n", iface, pClassID);

  if (pClassID == NULL)
    return AVIERR_BADPARAM;

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  *pClassID = CLSID_WAVFile;
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  return AVIERR_OK;
}

static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
{
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  IPersistFileImpl *This = (IPersistFileImpl *)iface;
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  TRACE("(%p)\n", iface);

  assert(This->paf != NULL);

  return (This->paf->fDirty ? S_OK : S_FALSE);
}

static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface,
					  LPCOLESTR pszFileName, DWORD dwMode)
{
  IAVIFileImpl *This = ((IPersistFileImpl*)iface)->paf;

  WCHAR wszStreamFmt[50];
  INT   len;

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  TRACE("(%p,%s,0x%08X)\n", iface, debugstr_w(pszFileName), dwMode);
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  /* check parameter */
  if (pszFileName == NULL)
    return AVIERR_BADPARAM;

  assert(This != NULL);
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  if (This->hmmio != NULL)
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    return AVIERR_ERROR; /* No reuse of this object for another file! */

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  /* remember mode and name */
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  This->uMode = dwMode;

  len = lstrlenW(pszFileName) + 1;
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  This->szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
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  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);
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  if (This->hmmio == NULL) {
    /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
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    LPSTR szFileName;
    len = WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1,
                              NULL, 0, NULL, NULL);
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    szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(CHAR));
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    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);
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    HeapFree(GetProcessHeap(), 0, szFileName);
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    if (This->hmmio == NULL)
      return AVIERR_FILEOPEN;
  }
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  memset(& This->fInfo, 0, sizeof(This->fInfo));
  memset(& This->sInfo, 0, sizeof(This->sInfo));

  LoadStringW(AVIFILE_hModule, IDS_WAVEFILETYPE, This->fInfo.szFileType,
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	      sizeof(This->fInfo.szFileType)/sizeof(This->fInfo.szFileType[0]));
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  if (LoadStringW(AVIFILE_hModule, IDS_WAVESTREAMFORMAT,
615
		  wszStreamFmt, sizeof(wszStreamFmt)/sizeof(wszStreamFmt[0])) > 0) {
616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650
    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)
{
651
  IPersistFileImpl *This = (IPersistFileImpl *)iface;
652 653 654 655 656 657 658 659 660 661 662

  TRACE("(%p,%p)\n", iface, ppszFileName);

  if (ppszFileName == NULL)
    return AVIERR_BADPARAM;

  *ppszFileName = NULL;

  assert(This->paf != NULL);

  if (This->paf->szFileName != NULL) {
663
    int len = lstrlenW(This->paf->szFileName) + 1;
664

665
    *ppszFileName = CoTaskMemAlloc(len * sizeof(WCHAR));
666 667 668
    if (*ppszFileName == NULL)
      return AVIERR_MEMORY;

669
    strcpyW(*ppszFileName, This->paf->szFileName);
670 671 672 673 674 675 676 677 678 679
  }

  return AVIERR_OK;
}

/***********************************************************************/

static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface,
						  REFIID refiid, LPVOID *obj)
{
680
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
681 682 683 684 685 686 687 688

  assert(This->paf != NULL);

  return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
}

static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
{
689
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
690 691 692 693 694 695 696 697

  assert(This->paf != NULL);

  return IAVIFile_AddRef((PAVIFILE)This->paf);
}

static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
{
698
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716

  assert(This->paf != NULL);

  return IAVIFile_Release((PAVIFILE)This->paf);
}

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,LPAVISTREAMINFOW psi,
					LONG size)
{
717
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
718

719
  TRACE("(%p,%p,%d)\n", iface, psi, size);
720 721 722 723 724 725

  if (psi == NULL)
    return AVIERR_BADPARAM;
  if (size < 0)
    return AVIERR_BADSIZE;

726
  memcpy(psi, &This->paf->sInfo, min((DWORD)size, sizeof(This->paf->sInfo)));
727

728
  if ((DWORD)size < sizeof(This->paf->sInfo))
729 730 731 732 733 734 735 736 737
    return AVIERR_BUFFERTOOSMALL;
  return AVIERR_OK;
}

static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos,
					   LONG flags)
{
  IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;

738
  TRACE("(%p,%d,0x%08X)\n",iface,pos,flags);
739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760

  /* 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;
  }

761 762
  if ((flags & FIND_RET) == FIND_LENGTH ||
      (flags & FIND_RET) == FIND_SIZE)
763
    return This->sInfo.dwSampleSize;
764
  if ((flags & FIND_RET) == FIND_OFFSET)
765 766 767 768 769 770 771 772
    return This->ckData.dwDataOffset + pos * This->sInfo.dwSampleSize;

  return pos;
}

static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos,
					      LPVOID format, LONG *formatsize)
{
773
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
774

775
  TRACE("(%p,%d,%p,%p)\n", iface, pos, format, formatsize);
776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802

  if (formatsize == NULL)
    return AVIERR_BADPARAM;

  /* only interested in needed buffersize? */
  if (format == NULL || *formatsize <= 0) {
    *formatsize = This->paf->cbFormat;

    return AVIERR_OK;
  }

  /* copy initial format (only as much as will fit) */
  memcpy(format, This->paf->lpFormat, min(*formatsize, This->paf->cbFormat));
  if (*formatsize < This->paf->cbFormat) {
    *formatsize = This->paf->cbFormat;
    return AVIERR_BUFFERTOOSMALL;
  }

  *formatsize = This->paf->cbFormat;
  return AVIERR_OK;
}

static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos,
					     LPVOID format, LONG formatsize)
{
  IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;

803
  TRACE("(%p,%d,%p,%d)\n", iface, pos, format, formatsize);
804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827

  /* 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 */
828
  This->lpFormat = HeapAlloc(GetProcessHeap(), 0, formatsize);
829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859
  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, LPVOID buffer,
					LONG buffersize, LPLONG bytesread,
					LPLONG samplesread)
{
  IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;

860
  TRACE("(%p,%d,%d,%p,%d,%p,%p)\n", iface, start, samples, buffer,
861 862 863 864 865 866 867 868 869
	buffersize, bytesread, samplesread);

  /* clear return parameters if given */
  if (bytesread != NULL)
    *bytesread = 0;
  if (samplesread != NULL)
    *samplesread = 0;

  /* positions without data */
870
  if (start < 0 || (DWORD)start > This->sInfo.dwLength)
871 872 873 874 875 876 877
    return AVIERR_OK;

  /* check samples */
  if (samples < 0)
    samples = 0;
  if (buffersize > 0) {
    if (samples > 0)
878
      samples = min((DWORD)samples, buffersize / This->sInfo.dwSampleSize);
879 880 881 882 883
    else
      samples = buffersize / This->sInfo.dwSampleSize;
  }

  /* limit to end of stream */
884
  if ((DWORD)(start + samples) > This->sInfo.dwLength)
885 886 887 888
    samples = This->sInfo.dwLength - start;

  /* request only the sizes? */
  if (buffer == NULL || buffersize <= 0) {
889
    /* then I need at least one parameter for it */
890 891 892 893 894 895 896 897 898 899 900 901 902 903 904
    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;

905
  /* Can I read at least one sample? */
906
  if ((DWORD)buffersize < This->sInfo.dwSampleSize)
907 908 909 910 911 912 913
    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;
914
  if (mmioRead(This->hmmio, buffer, buffersize) != buffersize)
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933
    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, LPVOID buffer,
					 LONG buffersize, DWORD flags,
					 LPLONG sampwritten,
					 LPLONG byteswritten)
{
  IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;

934
  TRACE("(%p,%d,%d,%p,%d,0x%08X,%p,%p)\n", iface, start, samples,
935 936 937 938 939 940 941 942 943 944 945 946
	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;

947
  /* Do we have write permission? */
948 949 950 951 952 953 954 955 956 957 958
  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;

959
  /* do we have anything to write? */
960 961 962 963 964 965
  if (buffer != NULL && buffersize > 0) {
    This->fDirty = 1;

    if (mmioSeek(This->hmmio, This->ckData.dwDataOffset +
		 start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
      return AVIERR_FILEWRITE;
966
    if (mmioWrite(This->hmmio, buffer, buffersize) != buffersize)
967 968
      return AVIERR_FILEWRITE;

969
    This->sInfo.dwLength = max(This->sInfo.dwLength, (DWORD)start + samples);
970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
    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 = ((IAVIStreamImpl*)iface)->paf;

988
  TRACE("(%p,%d,%d)\n", iface, start, samples);
989 990 991 992 993 994

  /* check parameters */
  if (start < 0 || samples < 0)
    return AVIERR_BADPARAM;

  /* Delete before start of stream? */
995
  if ((DWORD)(start + samples) < This->sInfo.dwStart)
996 997 998
    return AVIERR_OK;

  /* Delete after end of stream? */
999
  if ((DWORD)start > This->sInfo.dwLength)
1000 1001 1002 1003 1004 1005
    return AVIERR_OK;

  /* For the rest we need write permissions */
  if ((This->uMode & MMIO_RWMODE) == 0)
    return AVIERR_READONLY;

1006
  if ((DWORD)(start + samples) >= This->sInfo.dwLength) {
1007 1008 1009 1010
    /* deletion at end */
    samples = This->sInfo.dwLength - start;
    This->sInfo.dwLength -= samples;
    This->ckData.cksize  -= samples * This->sInfo.dwSampleSize;
1011
  } else if ((DWORD)start <= This->sInfo.dwStart) {
1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
    /* 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 = 1;

  return AVIERR_OK;
}

static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc,
					    LPVOID lp, LPLONG lpread)
{
1032
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
1033 1034 1035 1036 1037 1038 1039 1040 1041

  assert(This->paf != NULL);

  return IAVIFile_ReadData((PAVIFILE)This->paf, fcc, lp, lpread);
}

static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc,
					     LPVOID lp, LONG size)
{
1042
  IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
1043 1044 1045 1046 1047 1048 1049

  return IAVIFile_WriteData((PAVIFILE)This->paf, fcc, lp, size);
}

static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
					   LPAVISTREAMINFOW info, LONG infolen)
{
1050
  FIXME("(%p,%p,%d): stub\n", iface, info, infolen);
1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065

  return E_FAIL;
}

/***********************************************************************/

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 */
1066
  ckRIFF.fccType = 0; /* find any */
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076
  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,
1077
			     &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1078 1079 1080
    return AVIERR_FILEREAD;

  /* get memory for format and read it */
1081
  This->lpFormat = HeapAlloc(GetProcessHeap(), 0, ck.cksize);
1082 1083 1084 1085 1086 1087 1088 1089 1090
  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;

1091 1092 1093
  /* Non-pcm formats have a fact chunk.
   * We don't need it, so simply add it to the extra chunks.
   */
1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108

  /* 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;

1109 1110
  This->fInfo.dwStreams = 1;

1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127
  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)
{
1128
  SUNAUDIOHEADER auhdr;
1129

1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169
  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;
  };

1170
  This->lpFormat = HeapAlloc(GetProcessHeap(), 0, This->cbFormat);
1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
  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 = 0;

  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;
1252 1253
}

1254
static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This)
1255
{
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
  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;
1289
    if (acmFormatSuggest(NULL, This->lpFormat, &wfx,
1290
			 sizeof(wfx), ACM_FORMATSUGGESTF_WFORMATTAG)) {
1291
      acmStreamOpen(&has, NULL, This->lpFormat, &wfx, NULL,
1292 1293 1294 1295 1296 1297
		    0, 0, ACM_STREAMOPENF_NONREALTIME);
      acmStreamSize(has, This->ckData.cksize, &dwFactLength,
		    ACM_STREAMSIZEF_SOURCE);
      dwFactLength /= wfx.nBlockAlign;
      acmStreamClose(has, 0);

1298
      /* create the fact chunk */
1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315
      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");
  }

1316
  /* if there was extra stuff, we need to fill it with JUNK */
1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329
  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;
  }

1330
  /* create the data chunk */
1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353
  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;
1354
}