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Remove naked new[] in: builtin effects

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This commit is contained in:
Paul Licameli
2016-04-14 12:35:15 -04:00
parent f858d97352
commit 6ca89c28ff
28 changed files with 558 additions and 774 deletions
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157
src/effects/AutoDuck.cpp
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@@ -50,8 +50,8 @@ Param( MaximumPause, double, XO("MaximumPause"), 1.0, 0.0, DB
* Common constants
*/
enum : size_t { kBufSize = 131072 }; // number of samples to process at once
enum : size_t { kRMSWindowSize = 100 }; // samples in circular RMS window buffer
static const size_t kBufSize = 131072u; // number of samples to process at once
static const size_t kRMSWindowSize = 100u; // samples in circular RMS window buffer
/*
* A auto duck region and an array of auto duck regions
@@ -286,103 +286,99 @@ bool EffectAutoDuck::Process()
int rmsPos = 0;
float rmsSum = 0;
float *rmsWindow = new float[kRMSWindowSize];
for (size_t i = 0; i < kRMSWindowSize; i++)
rmsWindow[i] = 0;
float *buf = new float[kBufSize];
bool inDuckRegion = false;
// initialize the following two variables to prevent compiler warning
double duckRegionStart = 0;
sampleCount curSamplesPause = 0;
// to make the progress bar appear more natural, we first look for all
// duck regions and apply them all at once afterwards
AutoDuckRegionArray regions;
auto pos = start;
while (pos < end)
bool inDuckRegion = false;
{
const auto len = limitSampleBufferSize( kBufSize, end - pos );
Floats rmsWindow{ kRMSWindowSize, true };
mControlTrack->Get((samplePtr)buf, floatSample, pos, len);
Floats buf{ kBufSize };
for (auto i = pos; i < pos + len; i++)
// initialize the following two variables to prevent compiler warning
double duckRegionStart = 0;
sampleCount curSamplesPause = 0;
auto pos = start;
while (pos < end)
{
rmsSum -= rmsWindow[rmsPos];
// i - pos is bounded by len:
auto index = ( i - pos ).as_size_t();
rmsWindow[rmsPos] = buf[ index ] * buf[ index ];
rmsSum += rmsWindow[rmsPos];
rmsPos = (rmsPos + 1) % kRMSWindowSize;
const auto len = limitSampleBufferSize( kBufSize, end - pos );
mControlTrack->Get((samplePtr)buf.get(), floatSample, pos, len);
bool thresholdExceeded = rmsSum > threshold;
if (thresholdExceeded)
for (auto i = pos; i < pos + len; i++)
{
// everytime the threshold is exceeded, reset our count for
// the number of pause samples
curSamplesPause = 0;
rmsSum -= rmsWindow[rmsPos];
// i - pos is bounded by len:
auto index = ( i - pos ).as_size_t();
rmsWindow[rmsPos] = buf[ index ] * buf[ index ];
rmsSum += rmsWindow[rmsPos];
rmsPos = (rmsPos + 1) % kRMSWindowSize;
if (!inDuckRegion)
bool thresholdExceeded = rmsSum > threshold;
if (thresholdExceeded)
{
// the threshold has been exceeded for the first time, so
// let the duck region begin here
inDuckRegion = true;
duckRegionStart = mControlTrack->LongSamplesToTime(i);
// everytime the threshold is exceeded, reset our count for
// the number of pause samples
curSamplesPause = 0;
if (!inDuckRegion)
{
// the threshold has been exceeded for the first time, so
// let the duck region begin here
inDuckRegion = true;
duckRegionStart = mControlTrack->LongSamplesToTime(i);
}
}
if (!thresholdExceeded && inDuckRegion)
{
// the threshold has not been exceeded and we are in a duck
// region, but only fade in if the maximum pause has been
// exceeded
curSamplesPause += 1;
if (curSamplesPause >= minSamplesPause)
{
// do the actual duck fade and reset all values
double duckRegionEnd =
mControlTrack->LongSamplesToTime(i - curSamplesPause);
regions.Add(AutoDuckRegion(
duckRegionStart - mOuterFadeDownLen,
duckRegionEnd + mOuterFadeUpLen));
inDuckRegion = false;
}
}
}
if (!thresholdExceeded && inDuckRegion)
{
// the threshold has not been exceeded and we are in a duck
// region, but only fade in if the maximum pause has been
// exceeded
curSamplesPause += 1;
pos += len;
if (curSamplesPause >= minSamplesPause)
{
// do the actual duck fade and reset all values
double duckRegionEnd =
mControlTrack->LongSamplesToTime(i - curSamplesPause);
regions.Add(AutoDuckRegion(
duckRegionStart - mOuterFadeDownLen,
duckRegionEnd + mOuterFadeUpLen));
inDuckRegion = false;
}
}
}
pos += len;
if (TotalProgress(
if (TotalProgress(
(pos - start).as_double() /
(end - start).as_double() /
(GetNumWaveTracks() + 1)
))
))
{
cancel = true;
break;
}
}
// apply last duck fade, if any
if (inDuckRegion)
{
cancel = true;
break;
double duckRegionEnd =
mControlTrack->LongSamplesToTime(end - curSamplesPause);
regions.Add(AutoDuckRegion(
duckRegionStart - mOuterFadeDownLen,
duckRegionEnd + mOuterFadeUpLen));
}
}
// apply last duck fade, if any
if (inDuckRegion)
{
double duckRegionEnd =
mControlTrack->LongSamplesToTime(end - curSamplesPause);
regions.Add(AutoDuckRegion(
duckRegionStart - mOuterFadeDownLen,
duckRegionEnd + mOuterFadeUpLen));
}
delete[] buf;
delete[] rmsWindow;
if (!cancel)
{
CopyInputTracks(); // Set up mOutputTracks.
@@ -518,7 +514,7 @@ bool EffectAutoDuck::ApplyDuckFade(int trackNumber, WaveTrack* t,
auto start = t->TimeToLongSamples(t0);
auto end = t->TimeToLongSamples(t1);
float *buf = new float[kBufSize];
Floats buf{ kBufSize };
auto pos = start;
auto fadeDownSamples = t->TimeToLongSamples(
@@ -538,7 +534,7 @@ bool EffectAutoDuck::ApplyDuckFade(int trackNumber, WaveTrack* t,
{
const auto len = limitSampleBufferSize( kBufSize, end - pos );
t->Get((samplePtr)buf, floatSample, pos, len);
t->Get((samplePtr)buf.get(), floatSample, pos, len);
for (auto i = pos; i < pos + len; i++)
{
@@ -557,7 +553,7 @@ bool EffectAutoDuck::ApplyDuckFade(int trackNumber, WaveTrack* t,
buf[ ( i - pos ).as_size_t() ] *= DB_TO_LINEAR(gain);
}
t->Set((samplePtr)buf, floatSample, pos, len);
t->Set((samplePtr)buf.get(), floatSample, pos, len);
pos += len;
@@ -571,7 +567,6 @@ bool EffectAutoDuck::ApplyDuckFade(int trackNumber, WaveTrack* t,
}
}
delete[] buf;
return cancel;
}