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Better buffer handling for audio mixing

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This commit is contained in:
Jack Andersen 2016-05-16 10:21:20 -10:00
parent 6d65216dd6
commit 80026d7fe6
4 changed files with 45 additions and 43 deletions
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18
lib/audiodev/AudioMatrix.cpp
View File

@ -23,7 +23,7 @@ void AudioMatrixMono::setDefaultMatrixCoefficients(AudioChannelSet acSet)
}
}
void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
int16_t* AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t samples) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -37,9 +37,10 @@ void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
int32_t* AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t samples) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -53,9 +54,10 @@ void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
float* AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t samples) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -69,6 +71,7 @@ void AudioMatrixMono::mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
void AudioMatrixStereo::setDefaultMatrixCoefficients(AudioChannelSet acSet)
@ -90,7 +93,7 @@ void AudioMatrixStereo::setDefaultMatrixCoefficients(AudioChannelSet acSet)
}
}
void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
int16_t* AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t frames) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -106,9 +109,10 @@ void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
int32_t* AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t frames) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -124,9 +128,10 @@ void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
float* AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t frames) const
{
const ChannelMap& chmap = info.m_channelMap;
@ -142,6 +147,7 @@ void AudioMatrixStereo::mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
++dataOut;
}
}
return dataOut;
}
}

12
lib/audiodev/AudioMatrix.hpp
View File

@ -50,11 +50,11 @@ public:
m_coefs[i] = coefs[i];
}
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
int16_t* mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t samples) const;
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
int32_t* mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t samples) const;
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
float* mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t samples) const;
};
@ -74,11 +74,11 @@ public:
}
}
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
int16_t* mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t frames) const;
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
int32_t* mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t frames) const;
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
float* mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t frames) const;
};

33
lib/audiodev/AudioVoice.cpp
View File

@ -20,7 +20,7 @@ void AudioVoice::_setPitchRatio(double ratio)
{
if (m_dynamicRate)
{
soxr_error_t err = soxr_set_io_ratio(m_src, ratio * m_sampleRateIn / m_sampleRateOut, 0 /*m_parent.mixInfo().m_periodFrames*/);
soxr_error_t err = soxr_set_io_ratio(m_src, ratio * m_sampleRateIn / m_sampleRateOut, 0);
if (err)
{
Log.report(logvisor::Fatal, "unable to set resampler rate: %s", soxr_strerror(err));
@ -98,6 +98,7 @@ void AudioVoiceMono::_resetSampleRate(double sampleRate)
m_sampleRateIn = sampleRate;
m_sampleRateOut = rateOut;
m_5msFrames = rateOut * 5 / 1000;
soxr_set_input_fn(m_src, soxr_input_fn_t(SRCCallback), this, 0);
_setPitchRatio(m_pitchRatio);
m_resetSampleRate = false;
@ -123,14 +124,13 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratch16.data(), frames);
oDone = soxr_output(m_src, scratch16.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixMonoSampleData(mixInfo, scratch16.data(), buf, oDone);
buf = m_matrix.mixMonoSampleData(mixInfo, scratch16.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}
@ -148,14 +148,13 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratch32.data(), frames);
oDone = soxr_output(m_src, scratch32.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixMonoSampleData(mixInfo, scratch32.data(), buf, oDone);
buf = m_matrix.mixMonoSampleData(mixInfo, scratch32.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}
@ -173,14 +172,13 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratchFlt.data(), frames);
oDone = soxr_output(m_src, scratchFlt.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixMonoSampleData(mixInfo, scratchFlt.data(), buf, oDone);
buf = m_matrix.mixMonoSampleData(mixInfo, scratchFlt.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}
@ -268,14 +266,13 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratch16.data(), frames);
oDone = soxr_output(m_src, scratch16.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixStereoSampleData(mixInfo, scratch16.data(), buf, oDone);
buf = m_matrix.mixStereoSampleData(mixInfo, scratch16.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}
@ -294,14 +291,13 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratch32.data(), frames);
oDone = soxr_output(m_src, scratch32.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixStereoSampleData(mixInfo, scratch32.data(), buf, oDone);
buf = m_matrix.mixStereoSampleData(mixInfo, scratch32.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}
@ -320,14 +316,13 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
size_t totalDone = 0;
while (frames)
{
oDone = soxr_output(m_src, scratchFlt.data(), frames);
oDone = soxr_output(m_src, scratchFlt.data(), m_5msFrames);
_midUpdate();
if (oDone)
{
m_matrix.mixStereoSampleData(mixInfo, scratchFlt.data(), buf, oDone);
buf = m_matrix.mixStereoSampleData(mixInfo, scratchFlt.data(), buf, oDone);
totalDone += oDone;
frames -= oDone;
buf += oDone;
}
}

1
lib/audiodev/AudioVoice.hpp
View File

@ -36,6 +36,7 @@ protected:
soxr_t m_src = nullptr;
double m_sampleRateIn;
double m_sampleRateOut;
size_t m_5msFrames;
bool m_dynamicRate;
/* Running bool */