将directx中的sdkwavefile改了一下，能够不要dxut.h就能够编译的Cwavefile类，能够对wav文件进行操作。
下面是头文件和实现文件，其中stdafx.h中至少要包含windows.h。同时在项目设置中包含winmm.lib,dsound.lib,
DxErr.lib；在附加包含目录和附加库目录中加上directx sdk中的include和lib目录。
//-----------------------------------------------------------------------------
// File: WaveFile.h
//
// Copyright (c) Microsoft Corp. All rights reserved.
//-----------------------------------------------------------------------------
#ifndef DXUTWAVEFILE_H
#define DXUTWAVEFILE_H
#include "dsound.h"
#include "mmreg.h"
#include "DxErr.h"
#include "mmsystem.h"
#ifndef SAFE_DELETE
#define SAFE_DELETE(p)      { if (p) { delete (p);    (p)=NULL; } }
#endif   
#ifndef SAFE_DELETE_ARRAY
#define SAFE_DELETE_ARRAY(p) { if (p) { delete[] (p);  (p)=NULL; } }
#endif   
#ifndef SAFE_RELEASE
#define SAFE_RELEASE(p)      { if (p) { (p)->Release(); (p)=NULL; } }
#endif
//-----------------------------------------------------------------------------
// Typing macros
//-----------------------------------------------------------------------------
#define WAVEFILE_READ  1
#define WAVEFILE_WRITE  2
//-----------------------------------------------------------------------------
// Name: class CWaveFile
// Desc: Encapsulates reading or writing sound data to or from a wave file
//-----------------------------------------------------------------------------
class CWaveFile
{
public:
WAVEFORMATEX* m_pwfx;        // Pointer to WAVEFORMATEX structure
HMMIO m_hmmio;      // MM I/O handle for the WAVE
MMCKINFO m_ck;          // Multimedia RIFF chunk
MMCKINFO m_ckRiff;      // Use in opening a WAVE file
DWORD m_dwSize;      // The size of the wave file
MMIOINFO m_mmioinfoOut;
DWORD m_dwFlags;
BOOL m_bIsReadingFromMemory;
BYTE* m_pbData;
BYTE* m_pbDataCur;
ULONG m_ulDataSize;
CHAR* m_pResourceBuffer;
protected:
HRESULT ReadMMIO();
HRESULT WriteMMIO( WAVEFORMATEX* pwfxDest );
public:
CWaveFile();
~CWaveFile();
HRESULT Open( LPWSTR strFileName, WAVEFORMATEX* pwfx, DWORD dwFlags );
HRESULT OpenFromMemory( BYTE* pbData, ULONG ulDataSize, WAVEFORMATEX* pwfx, DWORD dwFlags );
HRESULT Close();
HRESULT Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead );
HRESULT Write( UINT nSizeToWrite, BYTE* pbData, UINT* pnSizeWrote );
DWORD  GetSize();
HRESULT ResetFile();
WAVEFORMATEX* GetFormat()
{
return m_pwfx;
};
};
#endif // DXUTWAVEFILE_H
//-----------------------------------------------------------------------------
// File: SDKWaveFile.cpp
//
// Desc: Classes for reading and writing wav files. Feel free to use this class
//      as a starting point for adding extra functionality.
//
// XNA Devel
oper Connection
//
// Copyright (c) Microsoft Corp. All rights reserved.
/
/-----------------------------------------------------------------------------
//#define STRICT
//#include "DXUT.h"
#include "stdafx.h"
#include "SDKwavefile.h"
#undef min // use __min instead
#undef max // use __max instead
//-----------------------------------------------------------------------------
// Name: CWaveFile::CWaveFile()
// Desc: Constructs the class.  Call Open() to open a wave file for reading.
//      Then call Read() as needed.  Calling the destructor or Close()
/
/      will close the file.
//-----------------------------------------------------------------------------
CWaveFile::CWaveFile()
{
m_pwfx = NULL;
m_hmmio = NULL;
m_pResourceBuffer = NULL;
m_dwSize = 0;
m_bIsReadingFromMemory = FALSE;
}
//-----------------------------------------------------------------------------
/
/ Name: CWaveFile::~CWaveFile()
// Desc: Destructs the class
//-----------------------------------------------------------------------------
CWaveFile::~CWaveFile()
{
Close();
if( !m_bIsReadingFromMemory )
SAFE_DELETE_ARRAY( m_pwfx );
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::Open()
/
/ Desc: Opens a wave file for reading
//-----------------------------------------------------------------------------
HRESULT CWaveFile::Open( LPWSTR strFileName, WAVEFORMATEX* pwfx, DWORD dwFlags )
{
HRESULT hr;
m_dwFlags = dwFlags;
m_bIsReadingFromMemory = FALSE;
if( m_dwFlags == WAVEFILE_READ )
{
if( strFileName == NULL )
return E_INVALIDARG;
SAFE_DELETE_ARRAY( m_pwfx );
m_hmmio = mmioOpen( strFileName, NULL, MMIO_ALLOCBUF | MMIO_READ );
if( NULL == m_hmmio )
{
HRSRC hResInfo;
HGLOBAL hResData;
DWORD dwSize;
VOID* pvRes;
// Loading it as a file failed, so try it as a resource
if( NULL == ( hResInfo = FindResource( NULL, strFileName, L"WAVE" ) ) )
{
if( NULL == ( hResInfo = FindResource( NULL, strFileName, L"WAV" ) ) )
return DXTRACE_ERR( L"FindResource", E_FAIL );
}
if( NULL == ( hResData = LoadResource( GetModuleHandle( NULL ), hResInfo ) ) )
return DXTRACE_ERR( L"LoadResource", E_FAIL );
if( 0 == ( dwSize = SizeofResource( GetModuleHandle( NULL ), hResInfo ) ) )
return DXTRACE_ERR( L"SizeofResource", E_FAIL );
if( NULL == ( pvRes = LockResource( hResData ) ) )
return DXTRACE_ERR( L"LockResource", E_FAIL );
m_pResourceBuffer = new CHAR[ dwSize ];
if( m_pResourceBuffer == NULL )
return DXTRACE_ERR( L"new", E_OUTOFMEMORY );
memcpy( m_pResourceBuffer, pvRes, dwSize );
MMIOINFO mmioInfo;
ZeroMemory( &mmioInfo, sizeof( mmioInfo ) );
mmioInfo.fccIOProc = FOURCC_MEM;
mmioInfo.pchBuffer = ( CHAR* )m_pResourceBuffer;
m_hmmio = mmioOpen( NULL, &mmioInfo, MMIO_ALLOCBUF | MMIO_READ );
}
if( FAILED( hr = ReadMMIO() ) )
{
/
/ ReadMMIO will fail if its an not a wave file
mmioClose( m_hmmio, 0 );
return DXTRACE_ERR( L"ReadMMIO", hr );
}
if( FAILED( hr = ResetFile() ) )
return DXTRACE_ERR( L"ResetFile", hr );
// After the reset, the size of the wav file is m_ck.cksize so store it now
m_dwSize = m_ck.cksize;
}
else
{
m_hmmio = mmioOpen( strFileName, NULL, MMIO_ALLOCBUF |
MMIO_READWRITE |
MMIO_CREATE );
if( NULL == m_hmmio )
return DXTRACE_ERR( L"mmioOpen", E_FAIL );
if( FAILED( hr = WriteMMIO( pwfx ) ) )
{
mmioClose( m_hmmio, 0 );
return DXTRACE_ERR( L"WriteMMIO", hr );
}
if( FAILED( hr = ResetFile() ) )
return DXTRACE_ERR( L"ResetFile", hr );
}
return hr;
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::OpenFromMemory()
// Desc: copy data to CWaveFile member variable from memory
//-----------------------------------------------------------------------------
delete inHRESULT CWaveFile::OpenFromMemory( BYTE* pbData, ULONG ulDataSize,
WAVEFORMATEX* pwfx, DWORD dwFlags )
{
m_pwfx = pwfx;
m_ulDataSize = ulDataSize;
m_pbData = pbData;
m_pbDataCur = m_pbData;
m_bIsReadingFromMemory = TRUE;
if( dwFlags != WAVEFILE_READ )
return E_NOTIMPL;
return S_OK;
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::ReadMMIO()
/
/ Desc: Support function for reading from a multimedia I/O stream.
//      m_hmmio must be valid before calling.  This function uses it to
//      update m_ckRiff, and m_pwfx.
//-----------------------------------------------------------------------------
HRESULT CWaveFile::ReadMMIO()
{
MMCKINFO ckIn;          // chunk info. for general use.
PCMWAVEFORMAT pcmWaveFormat;  // Temp PCM structure to load in.
memset( &ckIn, 0, sizeof(ckIn) );
m_pwfx = NULL;
if( ( 0 != mmioDescend( m_hmmio, &m_ckRiff, NULL, 0 ) ) )
return DXTRACE_ERR( L"mmioDescend", E_FAIL );
// Check to make sure this is a valid wave file
if( ( m_ckRiff.ckid != FOURCC_RIFF ) ||
( m_ckRiff.fccType != mmioFOURCC( 'W', 'A', 'V', 'E' ) ) )
return DXTRACE_ERR( L"mmioFOURCC", E_FAIL );
// Search the input file for for the 'fmt ' chunk.
ckIn.ckid = mmioFOURCC( 'f', 'm'
, 't', ' ' );
if( 0 != mmioDescend( m_hmmio, &ckIn, &m_ckRiff, MMIO_FINDCHUNK ) )
return DXTRACE_ERR( L"mmioDescend", E_FAIL );
// Expect the 'fmt' chunk to be at least as large as <PCMWAVEFORMAT>;
/
/ if there are extra parameters at the end, we'll ignore them
if( ckIn.cksize < ( LONG )sizeof( PCMWAVEFORMAT ) )
return DXTRACE_ERR( L"sizeof(PCMWAVEFORMAT)", E_FAIL );
// Read the 'fmt ' chunk into <pcmWaveFormat>.
if( mmioRead( m_hmmio, ( HPSTR )&pcmWaveFormat,
sizeof( pcmWaveFormat ) ) != sizeof( pcmWaveFormat ) )
return DXTRACE_ERR( L"mmioRead", E_FAIL );
// Allocate the waveformatex, but if its not pcm format, read the next
// word, and thats how many extra bytes to allocate.
if( pcmWaveFormat.wf.wFormatTag == WAVE_FORMAT_PCM )
{
m_pwfx = ( WAVEFORMATEX* )new CHAR[ sizeof( WAVEFORMATEX ) ];
if( NULL == m_pwfx )
return DXTRACE_ERR( L"m_pwfx", E_FAIL );
// Copy the bytes from the pcm structure to the waveformatex structure
memcpy( m_pwfx, &pcmWaveFormat, sizeof( pcmWaveFormat ) );
m_pwfx->cbSize = 0;
}
else
{
// Read in length of extra bytes.
WORD cbExtraBytes = 0L;
if( mmioRead( m_hmmio, ( CHAR* )&cbExtraBytes, sizeof( WORD ) ) != sizeof( WORD ) )
return DXTRACE_ERR( L"mmioRead", E_FAIL );
m_pwfx = ( WAVEFORMATEX* )new CHAR[ sizeof( WAVEFORMATEX ) + cbExtraBytes ];
if( NULL == m_pwfx )
return DXTRACE_ERR( L"new", E_FAIL );
// Copy the bytes from the pcm structure to the waveformatex structure
memcpy( m_pwfx, &pcmWaveFormat, sizeof( pcmWaveFormat ) );
m_pwfx->cbSize = cbExtraBytes;
// Now, read those extra bytes into the structure, if cbExtraAlloc != 0.
if( mmioRead( m_hmmio, ( CHAR* )( ( ( BYTE* )&( m_pwfx->cbSize ) ) + sizeof( WORD ) ),
cbExtraBytes ) != cbExtraBytes )
{
SAFE_DELETE( m_pwfx );
return DXTRACE_ERR( L"mmioRead", E_FAIL );
}
}
// Ascend the input file out of the 'fmt ' chunk.
if( 0 != mmioAscend( m_hmmio, &ckIn, 0 ) )
{
SAFE_DELETE( m_pwfx );
return DXTRACE_ERR( L"mmioAscend", E_FAIL );
}
return S_OK;
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::GetSize()
// Desc: Retuns the size of the read access wave file
//-----------------------------------------------------------------------------
DWORD CWaveFile::GetSize()
{
return m_dwSize;
}
//-----------------------------------------------------------------------------
/
/ Name: CWaveFile::ResetFile()
// Desc: Resets the internal m_ck pointer so reading starts from the
//      beginning of the file again
//-----------------------------------------------------------------------------
HRESULT CWaveF
ile::ResetFile()
{
if( m_bIsReadingFromMemory )
{
m_pbDataCur = m_pbData;
}
else
{
if( m_hmmio == NULL )
return CO_E_NOTINITIALIZED;
if( m_dwFlags == WAVEFILE_READ )
{
// Seek to the data
if( -1 == mmioSeek( m_hmmio, m_ckRiff.dwDataOffset + sizeof( FOURCC ),
SEEK_SET ) )
return DXTRACE_ERR( L"mmioSeek", E_FAIL );
// Search the input file for the 'data' chunk.
m_ck.ckid = mmioFOURCC( 'd', 'a', 't', 'a' );
if( 0 != mmioDescend( m_hmmio, &m_ck, &m_ckRiff, MMIO_FINDCHUNK ) )
return DXTRACE_ERR( L"mmioDescend", E_FAIL );
}
else
{
// Create the 'data' chunk that holds the waveform samples.
m_ck.ckid = mmioFOURCC( 'd', 'a', 't', 'a' );
m_ck.cksize = 0;
if( 0 != mmioCreateChunk( m_hmmio, &m_ck, 0 ) )
return DXTRACE_ERR( L"mmioCreateChunk", E_FAIL );
if( 0 != mmioGetInfo( m_hmmio, &m_mmioinfoOut, 0 ) )
return DXTRACE_ERR( L"mmioGetInfo", E_FAIL );
}
}
return S_OK;
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::Read()
// Desc: Reads section of data from a wave file into pBuffer and returns
//      how much read in pdwSizeRead, reading not more than dwSizeToRead.
//      This uses m_ck to determine where to start reading from.  So
/
/      subsequent calls will be continue where the last left off unless
//      Reset() is called.
//-----------------------------------------------------------------------------
HRESULT CWaveFile::Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead )
{
if( m_bIsReadingFromMemory )
{
if( m_pbDataCur == NULL )
return CO_E_NOTINITIALIZED;
if( pdwSizeRead != NULL )
*pdwSizeRead = 0;
if( ( BYTE* )( m_pbDataCur + dwSizeToRead ) >
( BYTE* )( m_pbData + m_ulDataSize ) )
{
dwSizeToRead = m_ulDataSize - ( DWORD )( m_pbDataCur - m_pbData );
}
#pragma warning( disable: 4616 )    // disable warning about warning number '22104' being out of range
#pragma warning( disable: 22104 )  // disable PREfast warning during static code analysis
CopyMemory( pBuffer, m_pbDataCur, dwSizeToRead );
#pragma warning( default: 22104 )
#pragma warning( default: 4616 )
if( pdwSizeRead != NULL )
*pdwSizeRead = dwSizeToRead;
return S_OK;
}
else
{
MMIOINFO mmioinfoIn; // current status of m_hmmio
if( m_hmmio == NULL )
return CO_E_NOTINITIALIZED;
if( pBuffer == NULL || pdwSizeRead == NULL )
return E_INVALIDARG;
*pdwSizeRead = 0;
if( 0 != mmioGetInfo( m_hmmio, &mmioinfoIn, 0 ) )
return DXTRACE_ERR( L"mmioGetInfo", E_FAIL );
UINT cbDataIn = dwSizeToRead;
if( cbDataIn > m_ck.cksize )
cbDataIn = m_ck.cksize;
m_ck.cksize -= cbDataIn;
for( DWORD cT = 0; cT < cbDataIn; cT++ )
{
// Copy the bytes from the io to the buffer.
if( mmioinfoIn.pchNext == mmioinfoIn.pchEndRead )
{
if( 0 != mmioAdvance( m_hmmio, &mmioinfoIn, MMIO_READ ) )
return DXTRACE_ERR( L"mmioAdvance", E_FAIL );
if( mmioinfoIn.pchNext == mmioinfoIn.pchEndRead )
return DXTRACE_ERR( L"mmioinfoIn.pchNext", E_FAIL );
}
// Actual copy.
*( ( BYTE* )pBuffer + cT ) = *( ( BYTE* )mmioinfoIn.pchNext );
mmioinfoIn.pchNext++;
}
if( 0 != mmioSetInfo( m_hmmio, &mmioinfoIn, 0 ) )
return DXTRACE_ERR( L"mmioSetInfo", E_FAIL );
*pdwSizeRead = cbDataIn;
return S_OK;
}
}
//-----------------------------------------------------------------------------
// Name: CWaveFile::Close()
// Desc: Closes the wave file
//-----------------------------------------------------------------------------
HRESULT CWaveFile::Close()
{
if( m_dwFlags == WAVEFILE_READ )
{
if ( m_hmmio != NULL )
{
mmioClose( m_hmmio, 0 );
m_hmmio = NULL;
}
SAFE_DELETE_ARRAY( m_pResourceBuffer );
}
else
{
m_mmioinfoOut.dwFlags |= MMIO_DIRTY;
if( m_hmmio == NULL )
return CO_E_NOTINITIALIZED;
if( 0 != mmioSetInfo( m_hmmio, &m_mmioinfoOut, 0 ) )
return DXTRACE_ERR( L"mmioSetInfo", E_FAIL );
// Ascend the output file out of the 'data' chunk -- this will cause
// the chunk size of the 'data' chunk to be written.
if( 0 != mmioAscend( m_hmmio, &m_ck, 0 ) )
return DXTRACE_ERR( L"mmioAscend", E_FAIL );
// Do this
if( 0 != mmioAscend( m_hmmio, &m_ckRiff, 0 ) )
return DXTRACE_ERR( L"mmioAscend", E_FAIL );
mmioSeek( m_hmmio, 0, SEEK_SET );
if( 0 != ( INT )mmioDescend( m_hmmio, &m_ckRiff, NULL, 0 ) )
return DXTRACE_ERR( L"mmioDescend", E_FAIL );
m_ck.ckid = mmioFOURCC( 'f', 'a', 'c', 't' );
if( 0 == mmioDescend( m_hmmio, &m_ck, &m_ckRiff, MMIO_FINDCHUNK ) )
{
DWORD dwSamples = 0;
mmioWrite( m_hmmio, ( HPSTR )&dwSamples, sizeof( DWORD ) );
mmioAscend( m_hmmio, &m_ck, 0 );
}
// Ascend the output file out of the 'RIFF' chunk -- this will cause
/
/ the chunk size of the 'RIFF' chunk to be written.
if( 0 != mmioAscend( m_hmmio, &m_ckRiff, 0 ) )
return DXTRACE_ERR( L"mmioAscend", E_FAIL );
mmioClose( m_hmmio, 0 );
m_hmmio = NULL;

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