SoundReader *ApplyFilters( SoundReader *s, int filters )
{
if( filters & FILTER_PRELOAD )
{
SoundReader_Preload *r = new SoundReader_Preload();
if( r->Open( s ) )
s = r;
else
{
printf( "Didn't preload\n" );
delete r;
}
}
if( filters & FILTER_RESAMPLE_FAST )
{
RageSoundReader_Resample *r = RageSoundReader_Resample::MakeResampler( RageSoundReader_Resample::RESAMP_FAST );
r->Open( s );
r->SetSampleRate( 10000 );
s = r;
}
return s;
}
void RageSound::LoadSoundReader( SoundReader *pSound )
{
Unload();
m_iDecodePosition = m_iStoppedPosition = 0;
const int iNeededRate = SOUNDMAN->GetDriverSampleRate( pSound->GetSampleRate() );
if( iNeededRate != pSound->GetSampleRate() )
{
RageSoundReader_Resample *Resample = RageSoundReader_Resample::MakeResampler( PREFSMAN->m_SoundResampleQuality );
Resample->Open( pSound );
Resample->SetSampleRate( iNeededRate );
pSound = Resample;
}
m_pSource = pSound;
}
void RageSoundReader_Chain::Finish()
{
/* Remove any sounds that don't have corresponding SoundReaders. */
for( unsigned i = 0; i < m_Sounds.size(); )
{
sound &sound = m_Sounds[i];
map<CString, SoundReader *>::iterator it = m_apLoadedSounds.find( sound.sPath );
if( it == m_apLoadedSounds.end() )
{
m_Sounds.erase( m_Sounds.begin()+i );
continue;
}
++i;
}
/* Figure out how many channels we have. */
m_iChannels = 1;
map<CString, SoundReader *>::iterator it;
for( it = m_apLoadedSounds.begin(); it != m_apLoadedSounds.end(); ++it )
m_iChannels = max( m_iChannels, it->second->GetNumChannels() );
/* If any sounds have a non-0 pan, we're stereo. */
for( unsigned i = 0; i < m_Sounds.size(); ++i )
if( fabs(m_Sounds[i].fPan) > 0.0001f )
m_iChannels = 2;
/*
* We might get different sample rates fro mour sources. If they're all the same
* sample rate, just leave it alone, so the whole sound can be resampled as a group.
* If not, resample eveything to the preferred rate. (Using the preferred rate
* should avoid redundant resampling later.)
*/
m_iActualSampleRate = GetSampleRateInternal();
if( m_iActualSampleRate == -1 )
{
for( it = m_apLoadedSounds.begin(); it != m_apLoadedSounds.end(); ++it )
{
SoundReader *&pSound = it->second;
/* We're preprocessing this; let's just use high quality resampling. */
RageSoundReader_Resample *pResample = RageSoundReader_Resample::MakeResampler( RageSoundReader_Resample::RESAMP_HIGHQUALITY );
pResample->Open( pSound );
pResample->SetSampleRate( m_iPreferredSampleRate );
pSound = pResample;
}
m_iActualSampleRate = m_iPreferredSampleRate;
}
/* Attempt to preload all sounds. */
for( it = m_apLoadedSounds.begin(); it != m_apLoadedSounds.end(); ++it )
{
SoundReader *&pSound = it->second;
RageSoundReader_Preload::PreloadSound( pSound );
}
/* Sort the sounds by start time. */
sort( m_Sounds.begin(), m_Sounds.end() );
}
