void Mixer::Mix(int *channelFlags, WaveTrack * src, double t0, double t1)
{
if (src->GetRate() - mRate >= 0.5 || src->GetRate() - mRate <= -0.5)
MixDiffRates(channelFlags, src, t0, t1);
else
MixSameRate(channelFlags, src, t0, t1);
}
sampleCount Mixer::Process(int maxToProcess)
{
if (mT >= mT1)
return 0;
int i, j;
sampleCount out;
sampleCount maxOut = 0;
int *channelFlags = new int[mNumChannels];
mMaxOut = maxToProcess;
Clear();
for(i=0; i<mNumInputTracks; i++) {
WaveTrack *track = mInputTrack[i];
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 0;
switch(track->GetChannel()) {
case Track::MonoChannel:
default:
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 1;
break;
case Track::LeftChannel:
channelFlags[0] = 1;
break;
case Track::RightChannel:
if (mNumChannels >= 2)
channelFlags[1] = 1;
else
channelFlags[0] = 1;
break;
}
if (mTimeTrack ||
track->GetRate() != mRate)
out = MixVariableRates(channelFlags, track,
&mSamplePos[i], mSampleQueue[i],
&mQueueStart[i], &mQueueLen[i], mSRC[i]);
else
out = MixSameRate(channelFlags, track, &mSamplePos[i]);
if (out > maxOut)
maxOut = out;
}
mT += (maxOut / mRate);
delete [] channelFlags;
return maxOut;
}
sampleCount Mixer::Process(int maxToProcess)
{
if (mT >= mT1)
return 0;
int i, j;
sampleCount out;
sampleCount maxOut = 0;
int *channelFlags = new int[mNumChannels];
mMaxOut = maxToProcess;
Clear();
for(i=0; i<mNumInputTracks; i++) {
WaveTrack *track = mInputTrack[i];
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 0;
if( mMixerSpec ) {
//ignore left and right when downmixing is not required
for( j = 0; j < mNumChannels; j++ )
channelFlags[ j ] = mMixerSpec->mMap[ i ][ j ] ? 1 : 0;
}
else {
switch(track->GetChannel()) {
case Track::MonoChannel:
default:
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 1;
break;
case Track::LeftChannel:
channelFlags[0] = 1;
break;
case Track::RightChannel:
if (mNumChannels >= 2)
channelFlags[1] = 1;
else
channelFlags[0] = 1;
break;
}
}
if (mTimeTrack ||
track->GetRate() != mRate)
out = MixVariableRates(channelFlags, track,
&mSamplePos[i], mSampleQueue[i],
&mQueueStart[i], &mQueueLen[i], mSRC[i]);
else
out = MixSameRate(channelFlags, track, &mSamplePos[i]);
if (out > maxOut)
maxOut = out;
}
out = mInterleaved ? maxOut * mNumChannels : maxOut;
for(int c=0; c<mNumBuffers; c++)
CopySamples(mTemp[c], floatSample, mBuffer[c], mFormat, out);
mT += (maxOut / mRate);
delete [] channelFlags;
return maxOut;
}
sampleCount Mixer::Process(sampleCount maxToProcess)
{
// MB: this is wrong! mT represented warped time, and mTime is too inaccurate to use
// it here. It's also unnecessary I think.
//if (mT >= mT1)
// return 0;
int i, j;
sampleCount maxOut = 0;
int *channelFlags = new int[mNumChannels];
mMaxOut = maxToProcess;
Clear();
for(i=0; i<mNumInputTracks; i++) {
const WaveTrack *const track = mInputTrack[i].GetTrack();
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 0;
if( mMixerSpec ) {
//ignore left and right when downmixing is not required
for( j = 0; j < mNumChannels; j++ )
channelFlags[ j ] = mMixerSpec->mMap[ i ][ j ] ? 1 : 0;
}
else {
switch(track->GetChannel()) {
case Track::MonoChannel:
default:
for(j=0; j<mNumChannels; j++)
channelFlags[j] = 1;
break;
case Track::LeftChannel:
channelFlags[0] = 1;
break;
case Track::RightChannel:
if (mNumChannels >= 2)
channelFlags[1] = 1;
else
channelFlags[0] = 1;
break;
}
}
if (mbVariableRates || track->GetRate() != mRate)
maxOut = std::max(maxOut,
MixVariableRates(channelFlags, mInputTrack[i],
&mSamplePos[i], mSampleQueue[i],
&mQueueStart[i], &mQueueLen[i], mResample[i]));
else
maxOut = std::max(maxOut,
MixSameRate(channelFlags, mInputTrack[i], &mSamplePos[i]));
double t = (double)mSamplePos[i] / (double)track->GetRate();
if (mT0 > mT1)
// backwards (as possibly in scrubbing)
mTime = std::max(std::min(t, mTime), mT1);
else
// forwards (the usual)
mTime = std::min(std::max(t, mTime), mT1);
}
if(mInterleaved) {
for(int c=0; c<mNumChannels; c++) {
CopySamples(mTemp[0].ptr() + (c * SAMPLE_SIZE(floatSample)),
floatSample,
mBuffer[0].ptr() + (c * SAMPLE_SIZE(mFormat)),
mFormat,
maxOut,
mHighQuality,
mNumChannels,
mNumChannels);
}
}
else {
for(int c=0; c<mNumBuffers; c++) {
CopySamples(mTemp[c].ptr(),
floatSample,
mBuffer[c].ptr(),
mFormat,
maxOut,
mHighQuality);
}
}
// MB: this doesn't take warping into account, replaced with code based on mSamplePos
//mT += (maxOut / mRate);
delete [] channelFlags;
return maxOut;
}