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Refactored audio supply dispatch across two passes

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This commit is contained in:
Jack Andersen 2016-07-04 15:06:22 -10:00
parent befa1a11a2
commit d9abcb8cf5
2 changed files with 16 additions and 68 deletions
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4
include/boo/audiodev/IAudioVoice.hpp
View File

@ -89,6 +89,10 @@ struct IAudioVoice
struct IAudioVoiceCallback
{
/** boo calls this on behalf of the audio platform to proactively invoke potential
* pitch or panning changes before processing samples */
virtual void preSupplyAudio(boo::IAudioVoice& voice, double dt)=0;
/** boo calls this on behalf of the audio platform to request more audio
* frames from the client */
virtual size_t supplyAudio(IAudioVoice& voice, size_t frames, int16_t* data)=0;

80
lib/audiodev/AudioVoice.cpp
View File

@ -103,37 +103,6 @@ void AudioVoiceMono::_resetSampleRate(double sampleRate)
soxr_set_input_fn(m_src, soxr_input_fn_t(SRCCallback), this, 0);
_setPitchRatio(m_pitchRatio, false);
m_resetSampleRate = false;
m_silentOut = true;
switch (formatOut)
{
case SOXR_INT16_I:
{
std::vector<int16_t>& scratch16 = m_root.m_scratch16;
if (scratch16.size() < m_root.m_5msFrames)
scratch16.resize(m_root.m_5msFrames);
soxr_output(m_src, scratch16.data(), m_root.m_5msFrames);
break;
}
case SOXR_INT32_I:
{
std::vector<int32_t>& scratch32 = m_root.m_scratch32;
if (scratch32.size() < m_root.m_5msFrames)
scratch32.resize(m_root.m_5msFrames);
soxr_output(m_src, scratch32.data(), m_root.m_5msFrames);
break;
}
case SOXR_FLOAT32_I:
{
std::vector<float>& scratchFlt = m_root.m_scratchFlt;
if (scratchFlt.size() < m_root.m_5msFrames)
scratchFlt.resize(m_root.m_5msFrames + 2);
soxr_output(m_src, scratchFlt.data(), m_root.m_5msFrames);
break;
}
default: break;
}
m_silentOut = false;
}
size_t AudioVoiceMono::SRCCallback(AudioVoiceMono* ctx, int16_t** data, size_t frames)
@ -158,8 +127,9 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratch16.size() < frames)
scratch16.resize(frames);
size_t oDone = soxr_output(m_src, scratch16.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratch16.data(), frames);
if (oDone)
{
@ -178,8 +148,9 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratch32.size() < frames)
scratch32.resize(frames);
size_t oDone = soxr_output(m_src, scratch32.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratch32.data(), frames);
if (oDone)
{
@ -198,8 +169,9 @@ size_t AudioVoiceMono::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratchFlt.size() < frames)
scratchFlt.resize(frames + 2);
size_t oDone = soxr_output(m_src, scratchFlt.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratchFlt.data(), frames);
if (oDone)
{
@ -292,37 +264,6 @@ void AudioVoiceStereo::_resetSampleRate(double sampleRate)
soxr_set_input_fn(m_src, soxr_input_fn_t(SRCCallback), this, 0);
_setPitchRatio(m_pitchRatio, false);
m_resetSampleRate = false;
m_silentOut = true;
switch (formatOut)
{
case SOXR_INT16_I:
{
std::vector<int16_t>& scratch16 = m_root.m_scratch16;
if (scratch16.size() < m_root.m_5msFrames * 2)
scratch16.resize(m_root.m_5msFrames * 2);
soxr_output(m_src, scratch16.data(), m_root.m_5msFrames);
break;
}
case SOXR_INT32_I:
{
std::vector<int32_t>& scratch32 = m_root.m_scratch32;
if (scratch32.size() < m_root.m_5msFrames * 2)
scratch32.resize(m_root.m_5msFrames * 2);
soxr_output(m_src, scratch32.data(), m_root.m_5msFrames);
break;
}
case SOXR_FLOAT32_I:
{
std::vector<float>& scratchFlt = m_root.m_scratchFlt;
if (scratchFlt.size() < m_root.m_5msFrames * 2)
scratchFlt.resize(m_root.m_5msFrames * 2 + 2);
soxr_output(m_src, scratchFlt.data(), m_root.m_5msFrames);
break;
}
default: break;
}
m_silentOut = false;
}
size_t AudioVoiceStereo::SRCCallback(AudioVoiceStereo* ctx, int16_t** data, size_t frames)
@ -349,8 +290,9 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratch16.size() < samples)
scratch16.resize(samples);
size_t oDone = soxr_output(m_src, scratch16.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratch16.data(), frames);
if (oDone)
{
@ -370,8 +312,9 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratch32.size() < samples)
scratch32.resize(samples);
size_t oDone = soxr_output(m_src, scratch32.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratch32.data(), frames);
if (oDone)
{
@ -391,8 +334,9 @@ size_t AudioVoiceStereo::pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo,
if (scratchFlt.size() < samples)
scratchFlt.resize(samples + 4);
size_t oDone = soxr_output(m_src, scratchFlt.data(), frames);
m_cb->preSupplyAudio(*this, frames / m_sampleRateOut);
_midUpdate();
size_t oDone = soxr_output(m_src, scratchFlt.data(), frames);
if (oDone)
{