int USBAudioDevice::GetCurrentSampleRate()
{
if(!IsValidDevice())
return 0;
if(m_acInterfaceList.Count() == 1 && m_acInterfaceList.First()->m_clockSourceList.Count() == 1)
{
int acInterfaceNum = m_acInterfaceList.First()->Descriptor().bInterfaceNumber;
int clockID = m_acInterfaceList.First()->m_clockSourceList.First()->m_clockSource.bClockID;
return GetSampleRateInternal(acInterfaceNum, clockID);
}
else
{
//more AC interfaces???
}
return 0;
}
void RageSoundReader_Merge::Finish( int iPreferredSampleRate )
{
/* Figure out how many channels we have. All sounds must either have 1 or 2 channels,
* which will be converted as needed, or have the same number of channels. */
m_iChannels = 1;
FOREACH( RageSoundReader *, m_aSounds, it )
m_iChannels = max( m_iChannels, (*it)->GetNumChannels() );
/*
* We might get different sample rates from our 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_iSampleRate = GetSampleRateInternal();
if( m_iSampleRate == -1 )
{
FOREACH( RageSoundReader *, m_aSounds, it )
{
RageSoundReader *&pSound = (*it);
RageSoundReader_Resample_Good *pResample = new RageSoundReader_Resample_Good( pSound, iPreferredSampleRate );
pSound = pResample;
}
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() );
}
