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;
}
bool EffectTwoPassSimpleMono::ProcessPass()
{
//Iterate over each track
SelectedTrackListOfKindIterator iter(Track::Wave, mOutputTracks);
WaveTrack *track = (WaveTrack *) iter.First();
mCurTrackNum = 0;
while (track) {
//Get start and end times from track
double trackStart = track->GetStartTime();
double trackEnd = track->GetEndTime();
//Set the current bounds to whichever left marker is
//greater and whichever right marker is less:
mCurT0 = mT0 < trackStart? trackStart: mT0;
mCurT1 = mT1 > trackEnd? trackEnd: mT1;
// Process only if the right marker is to the right of the left marker
if (mCurT1 > mCurT0) {
//Transform the marker timepoints to samples
sampleCount start = track->TimeToLongSamples(mCurT0);
sampleCount end = track->TimeToLongSamples(mCurT1);
//Get the track rate and samples
mCurRate = track->GetRate();
mCurChannel = track->GetChannel();
//NewTrackPass1/2() returns true by default
bool ret;
if (mPass == 0)
ret = NewTrackPass1();
else
ret = NewTrackPass2();
if (!ret)
return false;
//ProcessOne() (implemented below) processes a single track
if (!ProcessOne(track, start, end))
return false;
}
//Iterate to the next track
track = (WaveTrack *) iter.Next();
mCurTrackNum++;
}
return true;
}
bool EffectSimpleMono::Process()
{
//Iterate over each track
this->CopyInputWaveTracks(); // Set up mOutputWaveTracks.
bool bGoodResult = true;
TrackListIterator iter(mOutputWaveTracks);
WaveTrack* pOutWaveTrack = (WaveTrack*)(iter.First());
mCurTrackNum = 0;
while (pOutWaveTrack != NULL)
{
//Get start and end times from track
double trackStart = pOutWaveTrack->GetStartTime();
double trackEnd = pOutWaveTrack->GetEndTime();
//Set the current bounds to whichever left marker is
//greater and whichever right marker is less:
mCurT0 = mT0 < trackStart? trackStart: mT0;
mCurT1 = mT1 > trackEnd? trackEnd: mT1;
// Process only if the right marker is to the right of the left marker
if (mCurT1 > mCurT0) {
//Transform the marker timepoints to samples
longSampleCount start = pOutWaveTrack->TimeToLongSamples(mCurT0);
longSampleCount end = pOutWaveTrack->TimeToLongSamples(mCurT1);
//Get the track rate and samples
mCurRate = pOutWaveTrack->GetRate();
mCurChannel = pOutWaveTrack->GetChannel();
//NewTrackSimpleMono() will returns true by default
//ProcessOne() processes a single track
if (!NewTrackSimpleMono() || !ProcessOne(pOutWaveTrack, start, end))
{
bGoodResult = false;
break;
}
}
//Iterate to the next track
pOutWaveTrack = (WaveTrack*)(iter.Next());
mCurTrackNum++;
}
this->ReplaceProcessedWaveTracks(bGoodResult);
return bGoodResult;
}
bool EffectSoundTouch::Process()
{
//Assumes that mSoundTouch has already been initialized
//by the subclass
//Iterate over each track
TrackListIterator iter(mWaveTracks);
WaveTrack *track = (WaveTrack *) iter.First();
mCurTrackNum = 0;
m_maxNewLength = 0.0;
while (track) {
//Get start and end times from track
double trackStart = track->GetStartTime();
double trackEnd = track->GetEndTime();
//Set the current bounds to whichever left marker is
//greater and whichever right marker is less:
mCurT0 = mT0 < trackStart? trackStart: mT0;
mCurT1 = mT1 > trackEnd? trackEnd: mT1;
// Process only if the right marker is to the right of the left marker
if (mCurT1 > mCurT0) {
//Transform the marker timepoints to samples
longSampleCount start = track->TimeToLongSamples(mCurT0);
longSampleCount end = track->TimeToLongSamples(mCurT1);
//Get the track rate and samples
mCurRate = track->GetRate();
mCurChannel = track->GetChannel();
//ProcessOne() (implemented below) processes a single track
if (!ProcessOne(track, start, end))
return false;
}
//Iterate to the next track
track = (WaveTrack *) iter.Next();
mCurTrackNum++;
}
delete mSoundTouch;
mSoundTouch = NULL;
mT1 = mT0 + m_maxNewLength; // Update selection.
return true;
}
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++) {
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 (mbVariableRates || track->GetRate() != mRate)
maxOut = std::max(maxOut,
MixVariableRates(channelFlags, track,
&mSamplePos[i], mSampleQueue[i],
&mQueueStart[i], &mQueueLen[i], mResample[i]));
else
maxOut = std::max(maxOut,
MixSameRate(channelFlags, track, &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] + (c * SAMPLE_SIZE(floatSample)),
floatSample,
mBuffer[0] + (c * SAMPLE_SIZE(mFormat)),
mFormat,
maxOut,
mHighQuality,
mNumChannels,
mNumChannels);
}
}
else {
for(int c=0; c<mNumBuffers; c++) {
CopySamples(mTemp[c],
floatSample,
mBuffer[c],
mFormat,
maxOut,
mHighQuality);
}
}
// MB: this doesn't take warping into account, replaced with code based on mSamplePos
//mT += (maxOut / mRate);
delete [] channelFlags;
return maxOut;
}
bool EffectNormalize::Process()
{
bool wasLinked = false; // set when a track has a linked (stereo) track
if (mGain == false &&
mDC == false)
return true;
//Iterate over each track
this->CopyInputTracks(); // Set up mOutputTracks.
bool bGoodResult = true;
SelectedTrackListOfKindIterator iter(Track::Wave, mOutputTracks);
WaveTrack *track = (WaveTrack *) iter.First();
mCurTrackNum = 0;
while (track) {
//Get start and end times from track
double trackStart = track->GetStartTime();
double trackEnd = track->GetEndTime();
//Set the current bounds to whichever left marker is
//greater and whichever right marker is less:
mCurT0 = mT0 < trackStart? trackStart: mT0;
mCurT1 = mT1 > trackEnd? trackEnd: mT1;
// Process only if the right marker is to the right of the left marker
if (mCurT1 > mCurT0) {
//Transform the marker timepoints to samples
sampleCount start = track->TimeToLongSamples(mCurT0);
sampleCount end = track->TimeToLongSamples(mCurT1);
//Get the track rate and samples
mCurRate = track->GetRate();
mCurChannel = track->GetChannel();
if(mStereoInd) // do stereo tracks independently (the easy way)
track->GetMinMax(&mMin, &mMax, mCurT0, mCurT1);
else
{
if(!wasLinked) // new mono track or first of a stereo pair
{
track->GetMinMax(&mMin, &mMax, mCurT0, mCurT1);
if(track->GetLinked())
{
wasLinked = true; // so we use these values for the next (linked) track
track = (WaveTrack *) iter.Next(); // get the next one for the max/min
float min, max;
track->GetMinMax(&min, &max, mCurT0, mCurT1);
mMin = min < mMin ? min : mMin;
mMax = max > mMax ? max : mMax;
track = (WaveTrack *) iter.Prev(); // back to the one we are on
}
}
else
wasLinked = false; // second of the stereo pair, next one is mono or first
}
//ProcessOne() (implemented below) processes a single track
if (!ProcessOne(track, start, end))
{
bGoodResult = false;
break;
}
}
//Iterate to the next track
track = (WaveTrack *) iter.Next();
mCurTrackNum++;
}
this->ReplaceProcessedTracks(bGoodResult);
return bGoodResult;
}
void AudioIO::FillBuffers()
{
unsigned int numEmpty = 0;
unsigned int i;
// Playback buffers
for(i=0; i<mNumOutBuffers; i++) {
if (mOutBuffer[i].ID == 0)
numEmpty++;
}
if (numEmpty > (mNumOutBuffers/2)) {
sampleCount block = numEmpty * mBufferSize;
double deltat = block / mRate;
if (mT + deltat > mT1) {
deltat = mT1 - mT;
if(deltat < 0.0) return;
block = (sampleCount)(deltat * mRate + 0.5);
}
Mixer *mixer = new Mixer(mNumOutChannels, block, true,
mRate, mFormat);
mixer->UseVolumeSlider(mProject->GetControlToolBar());
mixer->Clear();
TrackListIterator iter2(mTracks);
int numSolo = 0;
Track *vt = iter2.First();
while (vt) {
if (vt->GetKind() == Track::Wave && vt->GetSolo())
numSolo++;
vt = iter2.Next();
}
TrackListIterator iter(mTracks);
vt = iter.First();
while (vt) {
if (vt->GetKind() == Track::Wave) {
Track *mt = vt;
// We want to extract mute and solo information from
// the top of the two tracks if they're linked
// (i.e. a stereo pair only has one set of mute/solo buttons)
Track *partner = mTracks->GetLink(vt);
if (partner && !vt->GetLinked())
mt = partner;
else
mt = vt;
// Cut if somebody else is soloing
if (numSolo>0 && !mt->GetSolo()) {
vt = iter.Next();
continue;
}
// Cut if we're muted (unless we're soloing)
if (mt->GetMute() && !mt->GetSolo()) {
vt = iter.Next();
continue;
}
WaveTrack *t = (WaveTrack *) vt;
switch (t->GetChannel()) {
case Track::LeftChannel:
mixer->MixLeft(t, mT, mT + deltat);
break;
case Track::RightChannel:
mixer->MixRight(t, mT, mT + deltat);
break;
case Track::MonoChannel:
mixer->MixMono(t, mT, mT + deltat);
break;
}
}
vt = iter.Next();
}
// Copy the mixed samples into the buffers
samplePtr outbytes = mixer->GetBuffer();
for(i=0; i<mNumOutBuffers && block>0; i++)
if (mOutBuffer[i].ID == 0) {
sampleCount count;
if (block > mBufferSize)
count = mBufferSize;
else
count = block;
memcpy(mOutBuffer[i].data, outbytes,
count*mNumOutChannels*SAMPLE_SIZE(mFormat));
block -= count;
outbytes += (count*mNumOutChannels*SAMPLE_SIZE(mFormat));
mOutBuffer[i].len = count;
mOutBuffer[i].ID = mOutID;
mOutID++;
}
delete mixer;
mT += deltat;
}
// Recording buffers
unsigned int numFull = 0;
unsigned int f, c; // loop counters
sampleCount flatLen;
for(i=0; i<mNumInBuffers; i++) {
if (mInBuffer[i].ID != 0)
numFull++;
}
if (numFull > 8) {
samplePtr *flat = new samplePtr[mNumInChannels];
for(i=0; i<mNumInChannels; i++)
flat[i] = NewSamples(numFull * mBufferSize, mFormat);
flatLen = 0;
for(f=0; f<numFull; f++) {
int minID = mInID+1;
int minIndex = 0;
for(i=0; i<mNumInBuffers; i++)
if (mInBuffer[i].ID > 0 &&
mInBuffer[i].ID < minID) {
minIndex = i;
minID = mInBuffer[i].ID;
}
switch(mFormat) {
case floatSample:
int j;
for(j=0; j<mInBuffer[minIndex].len; j++)
for(c=0; c<mNumInChannels; c++) {
((float *)flat[c])[flatLen+j] =
((float *)mInBuffer[minIndex].data)[j*mNumInChannels + c];
}
break;
default:
wxASSERT(0);
}
flatLen += mInBuffer[minIndex].len;
mInBuffer[minIndex].ID = 0;
}
for(i=0; i<mNumInChannels; i++)
mInTracks[i]->Append(flat[i], mFormat, flatLen);
for(i=0; i<mNumInChannels; i++)
DeleteSamples(flat[i]);
delete[] flat;
mProject->RedrawProject();
}
}
