This commit is contained in:
Glenn Maynard
2005-10-24 02:08:27 +00:00
parent 63cb85cafa
commit a9712d7a38
2 changed files with 68 additions and 64 deletions
+49 -46
View File
@@ -3,103 +3,106 @@
RageSoundReader_Resample_Fast::RageSoundReader_Resample_Fast()
{
source = NULL;
samplerate = -1;
m_pSource = NULL;
m_iOutputSampleRate = -1;
}
void RageSoundReader_Resample_Fast::Open(SoundReader *source_)
void RageSoundReader_Resample_Fast::Open( SoundReader *pSource )
{
source = source_;
ASSERT(source);
m_pSource = pSource;
ASSERT(m_pSource);
samplerate = source->GetSampleRate();
resamp.SetInputSampleRate(samplerate);
resamp.SetChannels( source->GetNumChannels() );
m_iOutputSampleRate = m_pSource->GetSampleRate();
m_Resamp.SetInputSampleRate( m_iOutputSampleRate );
m_Resamp.SetChannels( m_pSource->GetNumChannels() );
}
RageSoundReader_Resample_Fast::~RageSoundReader_Resample_Fast()
{
delete source;
delete m_pSource;
}
void RageSoundReader_Resample_Fast::SetSampleRate(int hz)
void RageSoundReader_Resample_Fast::SetSampleRate( int hz )
{
samplerate = hz;
resamp.SetOutputSampleRate(samplerate);
m_iOutputSampleRate = hz;
m_Resamp.SetOutputSampleRate( m_iOutputSampleRate );
}
int RageSoundReader_Resample_Fast::GetLength() const
{
resamp.reset();
return source->GetLength();
m_Resamp.reset();
return m_pSource->GetLength();
}
int RageSoundReader_Resample_Fast::GetLength_Fast() const
{
resamp.reset();
return source->GetLength_Fast();
m_Resamp.reset();
return m_pSource->GetLength_Fast();
}
int RageSoundReader_Resample_Fast::SetPosition_Accurate(int ms)
int RageSoundReader_Resample_Fast::SetPosition_Accurate( int ms )
{
resamp.reset();
return source->SetPosition_Accurate(ms);
m_Resamp.reset();
return m_pSource->SetPosition_Accurate(ms);
}
int RageSoundReader_Resample_Fast::SetPosition_Fast(int ms)
int RageSoundReader_Resample_Fast::SetPosition_Fast( int ms )
{
resamp.reset();
return source->SetPosition_Fast(ms);
m_Resamp.reset();
return m_pSource->SetPosition_Fast(ms);
}
static const int BUFSIZE = 1024*16;
int RageSoundReader_Resample_Fast::Read(char *buf, unsigned len)
int RageSoundReader_Resample_Fast::Read( char *pBuf, unsigned iSize )
{
int bytes_read = 0;
while(len)
int iBytesRead = 0;
while( iSize )
{
int size = resamp.read(buf, len);
{
int iGot = m_Resamp.read( pBuf, iSize );
if(size == -1)
break;
if( iGot == -1 )
break;
buf += size;
len -= size;
bytes_read += size;
pBuf += iGot;
iSize -= iGot;
iBytesRead += iGot;
if( iGot )
continue;
}
if(size == 0)
{
static char buf[BUFSIZE];
int iGot = m_pSource->Read(buf, sizeof(buf));
int cnt = source->Read(buf, sizeof(buf));
if(cnt == -1)
if( iGot == -1 )
{
SetError(source->GetError());
SetError( m_pSource->GetError() );
return -1;
}
if(cnt == 0)
resamp.eof();
if( iGot == 0 )
m_Resamp.eof();
else
resamp.write(buf, cnt);
m_Resamp.write( buf, iGot );
}
}
return bytes_read;
return iBytesRead;
}
SoundReader *RageSoundReader_Resample_Fast::Copy() const
{
SoundReader *new_source = source->Copy();
RageSoundReader_Resample_Fast *ret = new RageSoundReader_Resample_Fast;
ret->Open(new_source);
ret->SetSampleRate(samplerate);
return ret;
SoundReader *pNewSource = m_pSource->Copy();
RageSoundReader_Resample_Fast *pRet = new RageSoundReader_Resample_Fast;
pRet->Open( pNewSource );
pRet->SetSampleRate( m_iOutputSampleRate );
return pRet;
}
/*
* Copyright (c) 2003 Glenn Maynard
* Copyright (c) 2003-2005 Glenn Maynard
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
+19 -18
View File
@@ -10,38 +10,39 @@
/* This class changes the sampling rate of a sound. */
class RageSoundReader_Resample_Fast: public RageSoundReader_Resample
{
int samplerate;
bool FillBuf();
SoundReader *source;
mutable RageSoundResampler resamp;
public:
/* We own source. */
void Open(SoundReader *source);
/* We own pSource. */
void Open( SoundReader *pSource );
int GetLength() const;
int GetLength_Fast() const;
int SetPosition_Accurate(int ms);
int SetPosition_Fast(int ms);
int Read(char *buf, unsigned len);
int SetPosition_Accurate( int ms );
int SetPosition_Fast( int ms );
int Read( char *pBuf, unsigned iSize );
RageSoundReader_Resample_Fast();
virtual ~RageSoundReader_Resample_Fast();
SoundReader *Copy() const;
/* Change the actual sample rate of a sound. */
void SetSampleRate(int hz);
void SetSampleRate( int hz );
int GetSampleRate() const { return samplerate; }
unsigned GetNumChannels() const { return source->GetNumChannels(); }
bool IsStreamingFromDisk() const { return source->IsStreamingFromDisk(); }
int GetSampleRate() const { return m_iOutputSampleRate; }
unsigned GetNumChannels() const { return m_pSource->GetNumChannels(); }
bool IsStreamingFromDisk() const { return m_pSource->IsStreamingFromDisk(); }
private:
bool FillBuf();
int m_iOutputSampleRate;
SoundReader *m_pSource;
mutable RageSoundResampler m_Resamp;
};
#endif
/*
* Copyright (c) 2003 Glenn Maynard
* Copyright (c) 2003-2005 Glenn Maynard
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a