本文整理汇总了C++中IDirectSoundBuffer::SetFrequency方法的典型用法代码示例。如果您正苦于以下问题：C++ IDirectSoundBuffer::SetFrequency方法的具体用法？C++ IDirectSoundBuffer::SetFrequency怎么用？C++ IDirectSoundBuffer::SetFrequency使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IDirectSoundBuffer的用法示例。
在下文中一共展示了IDirectSoundBuffer::SetFrequency方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DXTRACE_ERR
//-----------------------------------------------------------------------------
// Name: CSound::Play3D()
// Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
// in the dwFlags to loop the sound
//-----------------------------------------------------------------------------
HRESULT CSound::Play3D( LPDS3DBUFFER p3DBuffer, DWORD dwPriority, DWORD dwFlags, LONG lFrequency )
{
HRESULT hr;
BOOL bRestored;
DWORD dwBaseFrequency;
if( m_apDSBuffer == NULL )
return CO_E_NOTINITIALIZED;
IDirectSoundBuffer* pDSB = GetFreeBuffer();
if( pDSB == NULL )
return DXTRACE_ERR( TEXT("GetFreeBuffer"), E_FAIL );
// Restore the buffer if it was lost
if( FAILED( hr = RestoreBuffer( pDSB, &bRestored ) ) )
return DXTRACE_ERR( TEXT("RestoreBuffer"), hr );
if( bRestored )
{
// The buffer was restored, so we need to fill it with new data
if( FAILED( hr = FillBufferWithSound( pDSB, FALSE ) ) )
return DXTRACE_ERR( TEXT("FillBufferWithSound"), hr );
}
if( m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY )
{
pDSB->GetFrequency( &dwBaseFrequency );
pDSB->SetFrequency( dwBaseFrequency + lFrequency );
}
// QI for the 3D buffer
IDirectSound3DBuffer* pDS3DBuffer;
hr = pDSB->QueryInterface( IID_IDirectSound3DBuffer, (VOID**) &pDS3DBuffer );
if( SUCCEEDED( hr ) )
{
hr = pDS3DBuffer->SetAllParameters( p3DBuffer, DS3D_IMMEDIATE );
if( SUCCEEDED( hr ) )
{
hr = pDSB->Play( 0, dwPriority, dwFlags );
}
pDS3DBuffer->Release();
}
return hr;
}示例2:
void SoundLibrary3dDirectSound::SetChannelFrequency( int _channel, int _frequency )
{
DirectSoundChannel *channel;
if (_channel == m_musicChannelId) channel = m_musicChannel;
else channel = &m_channels[_channel];
if (channel->m_freq != _frequency)
{
channel->m_freq = _frequency;
IDirectSoundBuffer *buffer = channel->m_bufferInterface;
int errCode = buffer->SetFrequency( _frequency );
if (errCode == DSERR_BUFFERLOST)
buffer->Restore();
else
SOUNDASSERT( errCode, "Direct sound couldn't set channel frequency" );
}
}示例3: SetPitch
void as_Sound::SetPitch(float pitch)
{
// set volume in hundredth of Decibel from 0 (full volume) to -9600 (silence)
long volume;
HRESULT hr;
// Get the 3D buffer in the audio path.
IDirectSoundBuffer *myBuffer = NULL;
hr = this->pAudioPath->GetObjectInPath(
0,
DMUS_PATH_BUFFER,
0,
GUID_NULL,
0,
IID_IDirectSoundBuffer,
(LPVOID *)&myBuffer);
if (FAILED(hr))
{
AddLogMsg("Error: GetObjectInPath");
return;
}
//this->pDS3DBuffer->QueryInterface(IID_IDirectSoundBuffer,(LPVOID *)&myBuffer);
if (myBuffer)
{
myBuffer->SetFrequency(pitch);
}
/*
if (true == looping)
{
MUSIC_TIME mtLength;
hr = pSegment->GetLength(&mtLength);
hr = pSegment->SetLoopPoints(0, mtLength/44000*22000);
if (S_OK != hr) {
char msg[128];
sprintf(msg, "SetLoopPoints error 0x%08lX", hr);
AddLogMsg(msg);
}
this->pSegment->SetRepeats(DMUS_SEG_REPEAT_INFINITE);
}
else
this->pSegment->SetRepeats(0);*/
}示例4: Play
//-----------------------------------------------------------------------------
// Name: CSound::Play()
// Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
// in the dwFlags to loop the sound
//-----------------------------------------------------------------------------
HRESULT CSound::Play( DWORD dwPriority, DWORD dwFlags, LONG lVolume, LONG lFrequency, LONG lPan )
{
HRESULT hr;
BOOL bRestored;
if( m_apDSBuffer == NULL )
return CO_E_NOTINITIALIZED;
IDirectSoundBuffer* pDSB = GetFreeBuffer();
if( pDSB == NULL )
return DXTRACE_ERR( TEXT("GetFreeBuffer"), E_FAIL );
// Restore the buffer if it was lost
if( FAILED( hr = RestoreBuffer( pDSB, &bRestored ) ) )
return DXTRACE_ERR( TEXT("RestoreBuffer"), hr );
if( bRestored )
{
// The buffer was restored, so we need to fill it with new data
if( FAILED( hr = FillBufferWithSound( pDSB, FALSE ) ) )
return DXTRACE_ERR( TEXT("FillBufferWithSound"), hr );
}
if( m_dwCreationFlags & DSBCAPS_CTRLVOLUME )
{
pDSB->SetVolume( lVolume );
}
if( lFrequency != -1 &&
(m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY) )
{
pDSB->SetFrequency( lFrequency );
}
if( m_dwCreationFlags & DSBCAPS_CTRLPAN )
{
pDSB->SetPan( lPan );
}
return pDSB->Play( 0, dwPriority, dwFlags );
}示例5: play
int CSoundResource::play( int sndID, DWORD priority, DWORD flags, LONG volume, LONG freq, LONG pan )
{
assert( mDSBuffers );
int bufferIdx = getFreeBufferIndex();
IDirectSoundBuffer* buffer = mDSBuffers[bufferIdx];
if( !restoreBufferAndFill( buffer, false ) )
return -1;
if( mCreationFlags & DSBCAPS_CTRLVOLUME )
buffer->SetVolume( volume );
if( freq != -1 && (mCreationFlags & DSBCAPS_CTRLFREQUENCY) )
buffer->SetFrequency( freq );
if( mCreationFlags & DSBCAPS_CTRLPAN )
buffer->SetPan( pan );
mPlayingIDs[bufferIdx] = sndID;
buffer->Play( 0, priority, flags );
return bufferIdx;
}示例6: toear
int CSoundResource::play3D( int sndID, const DS3DBUFFER& props3D, DWORD priority, DWORD flags, LONG volume, LONG freq )
{
HRESULT hr;
DWORD baseFreq;
assert( mDSBuffers );
// cull the sound if too far
const SVector3& earPos = G_AUDIOCTX->getListener().transform.getOrigin();
SVector3 toear( earPos.x - props3D.vPosition.x, earPos.y - props3D.vPosition.y, earPos.z - props3D.vPosition.z );
if( toear.lengthSq() >= props3D.flMaxDistance * props3D.flMaxDistance )
return 0;
int bufferIdx = getFreeBufferIndex();
IDirectSoundBuffer* buffer = mDSBuffers[bufferIdx];
if( !restoreBufferAndFill( buffer, false ) )
return -1;
if( mCreationFlags & DSBCAPS_CTRLVOLUME )
buffer->SetVolume( volume );
if( mCreationFlags & DSBCAPS_CTRLFREQUENCY ) {
buffer->GetFrequency( &baseFreq );
buffer->SetFrequency( baseFreq + freq );
}
IDirectSound3DBuffer* buf3D;
hr = buffer->QueryInterface( IID_IDirectSound3DBuffer, (void**)&buf3D );
if( SUCCEEDED( hr ) ) {
hr = buf3D->SetAllParameters( &props3D, DS3D_IMMEDIATE );
if( SUCCEEDED( hr ) ) {
mPlayingIDs[bufferIdx] = sndID;
hr = buffer->Play( 0, priority, flags );
}
buf3D->Release();
}
return bufferIdx;
}