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Experimental support for LtRt surround matrixing

This commit is contained in:
Jack Andersen 2017-09-27 17:11:40 -10:00
parent 71b8893dde
commit 0b35c584f6
10 changed files with 554 additions and 40 deletions
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11
CMakeLists.txt
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@ -14,6 +14,14 @@ endif()
add_subdirectory(xxhash)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}")
find_package(IPP)
if (IPP_FOUND)
add_definitions(-DINTEL_IPP=1)
include_directories(${IPP_INCLUDE_DIRS})
list(APPEND _BOO_SYS_LIBS ${IPP_LIBRARIES})
endif ()
set(WITH_LSR_BINDINGS OFF)
set(BUILD_TESTS OFF)
set(BUILD_SHARED_LIBS OFF)
@ -222,6 +230,7 @@ add_library(boo
lib/inputdev/DeviceFinder.cpp include/boo/inputdev/DeviceFinder.hpp
lib/inputdev/HIDParser.cpp include/boo/inputdev/HIDParser.hpp
lib/inputdev/IHIDDevice.hpp
lib/audiodev/Common.hpp
lib/audiodev/WAVOut.cpp
lib/audiodev/AudioMatrix.hpp
#lib/audiodev/AudioMatrix.cpp
@ -232,6 +241,8 @@ add_library(boo
lib/audiodev/AudioVoice.cpp
lib/audiodev/AudioSubmix.hpp
lib/audiodev/AudioSubmix.cpp
lib/audiodev/LtRtProcessing.hpp
lib/audiodev/LtRtProcessing.cpp
lib/audiodev/MIDIEncoder.cpp
lib/audiodev/MIDIDecoder.cpp
lib/audiodev/MIDICommon.hpp

81
FindIPP.cmake Normal file
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@ -0,0 +1,81 @@
# - Find Intel IPP
# Find the IPP libraries
# Options:
#
# IPP_STATIC: true if using static linking
# IPP_MULTI_THREADED: true if using multi-threaded static linking
#
# This module defines the following variables:
#
# IPP_FOUND : True if IPP_INCLUDE_DIR are found
# IPP_INCLUDE_DIR : where to find ipp.h, etc.
# IPP_INCLUDE_DIRS: set when IPP_INCLUDE_DIR found
# IPP_LIBRARIES : the library to link against.
set(IPP_STATIC ON)
include(FindPackageHandleStandardArgs)
set(IPP_ROOT /opt/intel/ipp CACHE PATH "Folder contains IPP")
# Find header file dir
find_path(IPP_INCLUDE_DIR ipp.h
PATHS ${IPP_ROOT}/include)
# Find libraries
# Handle suffix
set(_IPP_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
if(WIN32)
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib)
else()
if(IPP_STATIC)
set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
else()
set(CMAKE_FIND_LIBRARY_SUFFIXES .so)
endif()
endif()
if(IPP_STATIC)
if(IPP_MULTI_THREADED)
set(IPP_LIBNAME_SUFFIX _t)
else()
set(IPP_LIBNAME_SUFFIX _l)
endif()
else()
set(IPP_LIBNAME_SUFFIX "")
endif()
set(IPP_LIBNAME_SUFFIX "")
macro(find_ipp_library IPP_COMPONENT)
string(TOLOWER ${IPP_COMPONENT} IPP_COMPONENT_LOWER)
find_library(IPP_LIB_${IPP_COMPONENT} ipp${IPP_COMPONENT_LOWER}${IPP_LIBNAME_SUFFIX}
PATHS ${IPP_ROOT}/lib/ia32/ ${IPP_ROOT}/lib)
endmacro()
# IPP components
# Core
find_ipp_library(CORE)
# Signal Processing
find_ipp_library(S)
# Vector Math
find_ipp_library(VM)
set(IPP_LIBRARY
${IPP_LIB_CORE}
${IPP_LIB_S}
${IPP_LIB_VM})
set(CMAKE_FIND_LIBRARY_SUFFIXES ${_IPP_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
find_package_handle_standard_args(IPP DEFAULT_MSG
IPP_INCLUDE_DIR IPP_LIBRARY)
if (IPP_FOUND)
set(IPP_INCLUDE_DIRS ${IPP_INCLUDE_DIR})
set(IPP_LIBRARIES ${IPP_LIBRARY})
endif()

3
include/boo/audiodev/IAudioVoiceEngine.hpp
View File

@ -60,6 +60,9 @@ struct IAudioVoiceEngine
/** Set total volume of engine */
virtual void setVolume(float vol)=0;
/** Enable or disable Lt/Rt surround encoding. If successful, getAvailableSet() will return Surround51 */
virtual bool enableLtRt(bool enable)=0;
/** Get list of MIDI devices found on system */
virtual std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() const=0;

24
lib/audiodev/AudioSubmix.cpp
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@ -95,7 +95,7 @@ int16_t* AudioSubmix::_getMergeBuf16(size_t frames)
if (m_redirect16)
return m_redirect16;
size_t sampleCount = frames * m_root.m_mixInfo.m_channelMap.m_channelCount;
size_t sampleCount = frames * m_root.clientMixInfo().m_channelMap.m_channelCount;
if (m_scratch16.size() < sampleCount)
m_scratch16.resize(sampleCount);
@ -107,7 +107,7 @@ int32_t* AudioSubmix::_getMergeBuf32(size_t frames)
if (m_redirect32)
return m_redirect32;
size_t sampleCount = frames * m_root.m_mixInfo.m_channelMap.m_channelCount;
size_t sampleCount = frames * m_root.clientMixInfo().m_channelMap.m_channelCount;
if (m_scratch32.size() < sampleCount)
m_scratch32.resize(sampleCount);
@ -119,7 +119,7 @@ float* AudioSubmix::_getMergeBufFlt(size_t frames)
if (m_redirectFlt)
return m_redirectFlt;
size_t sampleCount = frames * m_root.m_mixInfo.m_channelMap.m_channelCount;
size_t sampleCount = frames * m_root.clientMixInfo().m_channelMap.m_channelCount;
if (m_scratchFlt.size() < sampleCount)
m_scratchFlt.resize(sampleCount);
@ -128,13 +128,13 @@ float* AudioSubmix::_getMergeBufFlt(size_t frames)
size_t AudioSubmix::_pumpAndMix16(size_t frames)
{
ChannelMap& chMap = m_root.m_mixInfo.m_channelMap;
const ChannelMap& chMap = m_root.clientMixInfo().m_channelMap;
size_t chanCount = chMap.m_channelCount;
if (m_redirect16)
{
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_redirect16, frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_redirect16, frames, chMap, m_root.clientMixInfo().m_sampleRate);
m_redirect16 += chanCount * frames;
}
else
@ -143,7 +143,7 @@ size_t AudioSubmix::_pumpAndMix16(size_t frames)
if (m_scratch16.size() < sampleCount)
m_scratch16.resize(sampleCount);
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_scratch16.data(), frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_scratch16.data(), frames, chMap, m_root.clientMixInfo().m_sampleRate);
size_t curSlewFrame = m_slewFrames;
for (auto& smx : m_sendGains)
@ -188,13 +188,13 @@ size_t AudioSubmix::_pumpAndMix16(size_t frames)
size_t AudioSubmix::_pumpAndMix32(size_t frames)
{
ChannelMap& chMap = m_root.m_mixInfo.m_channelMap;
const ChannelMap& chMap = m_root.clientMixInfo().m_channelMap;
size_t chanCount = chMap.m_channelCount;
if (m_redirect32)
{
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_redirect32, frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_redirect32, frames, chMap, m_root.clientMixInfo().m_sampleRate);
m_redirect32 += chanCount * frames;
}
else
@ -203,7 +203,7 @@ size_t AudioSubmix::_pumpAndMix32(size_t frames)
if (m_scratch32.size() < sampleCount)
m_scratch32.resize(sampleCount);
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_scratch32.data(), frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_scratch32.data(), frames, chMap, m_root.clientMixInfo().m_sampleRate);
size_t curSlewFrame = m_slewFrames;
for (auto& smx : m_sendGains)
@ -248,13 +248,13 @@ size_t AudioSubmix::_pumpAndMix32(size_t frames)
size_t AudioSubmix::_pumpAndMixFlt(size_t frames)
{
ChannelMap& chMap = m_root.m_mixInfo.m_channelMap;
const ChannelMap& chMap = m_root.clientMixInfo().m_channelMap;
size_t chanCount = chMap.m_channelCount;
if (m_redirectFlt)
{
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_redirectFlt, frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_redirectFlt, frames, chMap, m_root.clientMixInfo().m_sampleRate);
m_redirectFlt += chanCount * frames;
}
else
@ -263,7 +263,7 @@ size_t AudioSubmix::_pumpAndMixFlt(size_t frames)
if (m_scratchFlt.size() < sampleCount)
m_scratchFlt.resize(sampleCount);
if (m_cb && m_cb->canApplyEffect())
m_cb->applyEffect(m_scratchFlt.data(), frames, chMap, m_root.m_mixInfo.m_sampleRate);
m_cb->applyEffect(m_scratchFlt.data(), frames, chMap, m_root.clientMixInfo().m_sampleRate);
size_t curSlewFrame = m_slewFrames;
for (auto& smx : m_sendGains)

24
lib/audiodev/AudioVoice.cpp
View File

@ -146,14 +146,14 @@ size_t AudioVoiceMono::pumpAndMix16(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 1, dt, smx.m_busId, scratch16Pre.data(), scratch16Post.data());
mtx.second.mixMonoSampleData(m_root.m_mixInfo, scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
mtx.second.mixMonoSampleData(m_root.clientMixInfo(), scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 1, dt, m_root.m_mainSubmix.m_busId, scratch16Pre.data(), scratch16Post.data());
DefaultMonoMtx.mixMonoSampleData(m_root.m_mixInfo, scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
DefaultMonoMtx.mixMonoSampleData(m_root.clientMixInfo(), scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
}
}
@ -183,14 +183,14 @@ size_t AudioVoiceMono::pumpAndMix32(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 1, dt, smx.m_busId, scratch32Pre.data(), scratch32Post.data());
mtx.second.mixMonoSampleData(m_root.m_mixInfo, scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
mtx.second.mixMonoSampleData(m_root.clientMixInfo(), scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 1, dt, m_root.m_mainSubmix.m_busId, scratch32Pre.data(), scratch32Post.data());
DefaultMonoMtx.mixMonoSampleData(m_root.m_mixInfo, scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
DefaultMonoMtx.mixMonoSampleData(m_root.clientMixInfo(), scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
}
}
@ -220,14 +220,14 @@ size_t AudioVoiceMono::pumpAndMixFlt(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 1, dt, smx.m_busId, scratchFltPre.data(), scratchFltPost.data());
mtx.second.mixMonoSampleData(m_root.m_mixInfo, scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
mtx.second.mixMonoSampleData(m_root.clientMixInfo(), scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 1, dt, m_root.m_mainSubmix.m_busId, scratchFltPre.data(), scratchFltPost.data());
DefaultMonoMtx.mixMonoSampleData(m_root.m_mixInfo, scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
DefaultMonoMtx.mixMonoSampleData(m_root.clientMixInfo(), scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
}
}
@ -349,14 +349,14 @@ size_t AudioVoiceStereo::pumpAndMix16(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 2, dt, smx.m_busId, scratch16Pre.data(), scratch16Post.data());
mtx.second.mixStereoSampleData(m_root.m_mixInfo, scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
mtx.second.mixStereoSampleData(m_root.clientMixInfo(), scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 2, dt, m_root.m_mainSubmix.m_busId, scratch16Pre.data(), scratch16Post.data());
DefaultStereoMtx.mixStereoSampleData(m_root.m_mixInfo, scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
DefaultStereoMtx.mixStereoSampleData(m_root.clientMixInfo(), scratch16Post.data(), smx._getMergeBuf16(oDone), oDone);
}
}
@ -388,14 +388,14 @@ size_t AudioVoiceStereo::pumpAndMix32(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 2, dt, smx.m_busId, scratch32Pre.data(), scratch32Post.data());
mtx.second.mixStereoSampleData(m_root.m_mixInfo, scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
mtx.second.mixStereoSampleData(m_root.clientMixInfo(), scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 2, dt, m_root.m_mainSubmix.m_busId, scratch32Pre.data(), scratch32Post.data());
DefaultStereoMtx.mixStereoSampleData(m_root.m_mixInfo, scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
DefaultStereoMtx.mixStereoSampleData(m_root.clientMixInfo(), scratch32Post.data(), smx._getMergeBuf32(oDone), oDone);
}
}
@ -427,14 +427,14 @@ size_t AudioVoiceStereo::pumpAndMixFlt(size_t frames)
{
AudioSubmix& smx = *reinterpret_cast<AudioSubmix*>(mtx.first);
m_cb->routeAudio(oDone, 2, dt, smx.m_busId, scratchFltPre.data(), scratchFltPost.data());
mtx.second.mixStereoSampleData(m_root.m_mixInfo, scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
mtx.second.mixStereoSampleData(m_root.clientMixInfo(), scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
}
}
else
{
AudioSubmix& smx = reinterpret_cast<AudioSubmix&>(m_root.m_mainSubmix);
m_cb->routeAudio(oDone, 2, dt, m_root.m_mainSubmix.m_busId, scratchFltPre.data(), scratchFltPost.data());
DefaultStereoMtx.mixStereoSampleData(m_root.m_mixInfo, scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
DefaultStereoMtx.mixStereoSampleData(m_root.clientMixInfo(), scratchFltPost.data(), smx._getMergeBufFlt(oDone), oDone);
}
}

65
lib/audiodev/AudioVoiceEngine.cpp
View File

@ -1,5 +1,5 @@
#include "AudioVoiceEngine.hpp"
#include <string.h>
#include "LtRtProcessing.hpp"
namespace boo
{
@ -15,7 +15,17 @@ BaseAudioVoiceEngine::~BaseAudioVoiceEngine()
void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int16_t* dataOut)
{
memset(dataOut, 0, sizeof(int16_t) * frames * m_mixInfo.m_channelMap.m_channelCount);
if (m_ltRtProcessing)
{
size_t sampleCount = m_5msFrames * 5;
if (m_ltRtIn16.size() < sampleCount)
m_ltRtIn16.resize(sampleCount);
m_mainSubmix.m_redirect16 = m_ltRtIn16.data();
}
else
{
m_mainSubmix.m_redirect16 = dataOut;
}
if (m_submixesDirty)
{
@ -50,6 +60,12 @@ void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int16_t* dataOut)
for (auto it = m_linearizedSubmixes.rbegin() ; it != m_linearizedSubmixes.rend() ; ++it)
(*it)->_pumpAndMix16(thisFrames);
if (m_ltRtProcessing)
{
m_ltRtProcessing->Process(m_ltRtIn16.data(), dataOut, int(thisFrames));
m_mainSubmix.m_redirect16 = m_ltRtIn16.data();
}
size_t sampleCount = thisFrames * m_mixInfo.m_channelMap.m_channelCount;
for (size_t i=0 ; i<sampleCount ; ++i)
dataOut[i] *= m_totalVol;
@ -65,7 +81,17 @@ void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int16_t* dataOut)
void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int32_t* dataOut)
{
memset(dataOut, 0, sizeof(int32_t) * frames * m_mixInfo.m_channelMap.m_channelCount);
if (m_ltRtProcessing)
{
size_t sampleCount = m_5msFrames * 5;
if (m_ltRtIn32.size() < sampleCount)
m_ltRtIn32.resize(sampleCount);
m_mainSubmix.m_redirect32 = m_ltRtIn32.data();
}
else
{
m_mainSubmix.m_redirect32 = dataOut;
}
if (m_submixesDirty)
{
@ -100,6 +126,12 @@ void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int32_t* dataOut)
for (auto it = m_linearizedSubmixes.rbegin() ; it != m_linearizedSubmixes.rend() ; ++it)
(*it)->_pumpAndMix32(thisFrames);
if (m_ltRtProcessing)
{
m_ltRtProcessing->Process(m_ltRtIn32.data(), dataOut, int(thisFrames));
m_mainSubmix.m_redirect32 = m_ltRtIn32.data();
}
size_t sampleCount = thisFrames * m_mixInfo.m_channelMap.m_channelCount;
for (size_t i=0 ; i<sampleCount ; ++i)
dataOut[i] *= m_totalVol;
@ -115,7 +147,17 @@ void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, int32_t* dataOut)
void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, float* dataOut)
{
memset(dataOut, 0, sizeof(float) * frames * m_mixInfo.m_channelMap.m_channelCount);
if (m_ltRtProcessing)
{
size_t sampleCount = m_5msFrames * 5;
if (m_ltRtInFlt.size() < sampleCount)
m_ltRtInFlt.resize(sampleCount);
m_mainSubmix.m_redirectFlt = m_ltRtInFlt.data();
}
else
{
m_mainSubmix.m_redirectFlt = dataOut;
}
if (m_submixesDirty)
{
@ -150,6 +192,12 @@ void BaseAudioVoiceEngine::_pumpAndMixVoices(size_t frames, float* dataOut)
for (auto it = m_linearizedSubmixes.rbegin() ; it != m_linearizedSubmixes.rend() ; ++it)
(*it)->_pumpAndMixFlt(thisFrames);
if (m_ltRtProcessing)
{
m_ltRtProcessing->Process(m_ltRtInFlt.data(), dataOut, int(thisFrames));
m_mainSubmix.m_redirectFlt = m_ltRtInFlt.data();
}
size_t sampleCount = thisFrames * m_mixInfo.m_channelMap.m_channelCount;
for (size_t i=0 ; i<sampleCount ; ++i)
dataOut[i] *= m_totalVol;
@ -216,9 +264,24 @@ void BaseAudioVoiceEngine::setVolume(float vol)
m_totalVol = vol;
}
bool BaseAudioVoiceEngine::enableLtRt(bool enable)
{
if (enable && m_mixInfo.m_channelMap.m_channelCount == 2 &&
m_mixInfo.m_channels == AudioChannelSet::Stereo)
m_ltRtProcessing = std::make_unique<LtRtProcessing>(m_5msFrames, m_mixInfo);
else
m_ltRtProcessing.reset();
return m_ltRtProcessing.operator bool();
}
const AudioVoiceEngineMixInfo& BaseAudioVoiceEngine::mixInfo() const
{
return m_mixInfo;
}
const AudioVoiceEngineMixInfo& BaseAudioVoiceEngine::clientMixInfo() const
{
return m_ltRtProcessing ? m_ltRtProcessing->inMixInfo() : m_mixInfo;
}
}

23
lib/audiodev/AudioVoiceEngine.hpp
View File

@ -2,6 +2,8 @@
#define BOO_AUDIOVOICEENGINE_HPP
#include "boo/audiodev/IAudioVoiceEngine.hpp"
#include "LtRtProcessing.hpp"
#include "Common.hpp"
#include "AudioVoice.hpp"
#include "AudioSubmix.hpp"
#include <functional>
@ -9,17 +11,6 @@
namespace boo
{
/** Pertinent information from audio backend about optimal mixed-audio representation */
struct AudioVoiceEngineMixInfo
{
double m_sampleRate;
soxr_datatype_t m_sampleFormat;
unsigned m_bitsPerSample;
AudioChannelSet m_channels;
ChannelMap m_channelMap;
size_t m_periodFrames;
};
/** Base class for managing mixing and sample-rate-conversion amongst active voices */
class BaseAudioVoiceEngine : public IAudioVoiceEngine
{
@ -44,6 +35,12 @@ protected:
std::vector<int32_t> m_scratch32Post;
std::vector<float> m_scratchFltPost;
/* LtRt processing if enabled */
std::unique_ptr<LtRtProcessing> m_ltRtProcessing;
std::vector<int16_t> m_ltRtIn16;
std::vector<int32_t> m_ltRtIn32;
std::vector<float> m_ltRtInFlt;
AudioSubmix m_mainSubmix;
std::list<AudioSubmix*> m_linearizedSubmixes;
bool m_submixesDirty = true;
@ -71,8 +68,10 @@ public:
void setCallbackInterface(IAudioVoiceEngineCallback* cb);
void setVolume(float vol);
bool enableLtRt(bool enable);
const AudioVoiceEngineMixInfo& mixInfo() const;
AudioChannelSet getAvailableSet() {return m_mixInfo.m_channels;}
const AudioVoiceEngineMixInfo& clientMixInfo() const;
AudioChannelSet getAvailableSet() {return clientMixInfo().m_channels;}
void pumpAndMixVoices() {}
size_t get5MsFrames() const {return m_5msFrames;}
};

22
lib/audiodev/Common.hpp Normal file
View File

@ -0,0 +1,22 @@
#ifndef BOO_AUDIOCOMMON_HPP
#define BOO_AUDIOCOMMON_HPP
#include <soxr.h>
namespace boo
{
/** Pertinent information from audio backend about optimal mixed-audio representation */
struct AudioVoiceEngineMixInfo
{
double m_sampleRate;
soxr_datatype_t m_sampleFormat;
unsigned m_bitsPerSample;
AudioChannelSet m_channels;
ChannelMap m_channelMap;
size_t m_periodFrames;
};
}
#endif // BOO_AUDIOCOMMON_HPP

270
lib/audiodev/LtRtProcessing.cpp Normal file
View File

@ -0,0 +1,270 @@
#include "LtRtProcessing.hpp"
#include <cmath>
namespace boo
{
template <typename T>
inline T ClampFull(float in)
{
if(std::is_floating_point<T>())
{
return std::min<T>(std::max<T>(in, -1.f), 1.f);
}
else
{
constexpr T MAX = std::numeric_limits<T>::max();
constexpr T MIN = std::numeric_limits<T>::min();
if (in < MIN)
return MIN;
else if (in > MAX)
return MAX;
else
return in;
}
}
#if INTEL_IPP
WindowedHilbert::WindowedHilbert(int windowSamples)
: m_windowSamples(windowSamples), m_halfSamples(windowSamples / 2),
m_inputBuf(new Ipp32f[m_windowSamples * 2 + m_halfSamples]),
m_outputBuf(new Ipp32fc[m_windowSamples * 4]),
m_hammingTable(new Ipp32f[m_halfSamples])
{
memset(m_inputBuf.get(), 0, sizeof(Ipp32fc) * m_windowSamples * 2 + m_halfSamples);
memset(m_outputBuf.get(), 0, sizeof(Ipp32fc) * m_windowSamples * 4);
m_output[0] = m_outputBuf.get();
m_output[1] = m_output[0] + m_windowSamples;
m_output[2] = m_output[1] + m_windowSamples;
m_output[3] = m_output[2] + m_windowSamples;
int sizeSpec, sizeBuf;
ippsHilbertGetSize_32f32fc(m_windowSamples, ippAlgHintNone, &sizeSpec, &sizeBuf);
m_spec = (IppsHilbertSpec*)ippMalloc(sizeSpec);
m_buffer = (Ipp8u*)ippMalloc(sizeBuf);
ippsHilbertInit_32f32fc(m_windowSamples, ippAlgHintNone, m_spec, m_buffer);
for (int i=0 ; i<m_halfSamples ; ++i)
m_hammingTable[i] = Ipp32f(std::cos(M_PI * (i / double(m_halfSamples) + 1.0)) * 0.5 + 0.5);
}
WindowedHilbert::~WindowedHilbert()
{
ippFree(m_spec);
ippFree(m_buffer);
}
void WindowedHilbert::_AddWindow()
{
if (m_bufIdx)
{
/* Mirror last half of samples to start of input buffer */
Ipp32f* bufBase = &m_inputBuf[m_windowSamples * 2];
for (int i=0 ; i<m_halfSamples ; ++i)
m_inputBuf[i] = bufBase[i];
ippsHilbert_32f32fc(&m_inputBuf[m_windowSamples],
m_output[2], m_spec, m_buffer);
ippsHilbert_32f32fc(&m_inputBuf[m_windowSamples + m_halfSamples],
m_output[3], m_spec, m_buffer);
}
else
{
ippsHilbert_32f32fc(&m_inputBuf[0],
m_output[0], m_spec, m_buffer);
ippsHilbert_32f32fc(&m_inputBuf[m_halfSamples],
m_output[1], m_spec, m_buffer);
}
m_bufIdx ^= 1;
}
void WindowedHilbert::AddWindow(const float* input, int stride)
{
Ipp32f* bufBase = &m_inputBuf[m_windowSamples * m_bufIdx + m_halfSamples];
for (int i=0 ; i<m_windowSamples ; ++i)
bufBase[i] = input[i * stride];
_AddWindow();
}
void WindowedHilbert::AddWindow(const int32_t* input, int stride)
{
Ipp32f* bufBase = &m_inputBuf[m_windowSamples * m_bufIdx + m_halfSamples];
for (int i=0 ; i<m_windowSamples ; ++i)
bufBase[i] = input[i * stride] / (float(INT32_MAX) + 1.f);
_AddWindow();
}
void WindowedHilbert::AddWindow(const int16_t* input, int stride)
{
Ipp32f* bufBase = &m_inputBuf[m_windowSamples * m_bufIdx + m_halfSamples];
for (int i=0 ; i<m_windowSamples ; ++i)
bufBase[i] = input[i * stride] / (float(INT16_MAX) + 1.f);
_AddWindow();
}
template <typename T>
void WindowedHilbert::Output(T* output, float lCoef, float rCoef) const
{
int first, middle, last;
if (m_bufIdx)
{
first = 3;
middle = 0;
last = 1;
}
else
{
first = 1;
middle = 2;
last = 3;
}
int i, t;
for (i=0, t=0 ; i<m_halfSamples ; ++i, ++t)
{
float tmp = m_output[first][i].im * (1.f - m_hammingTable[t]) +
m_output[middle][i].im * m_hammingTable[t];
output[i*2] = ClampFull<T>(output[i*2] + tmp * lCoef);
output[i*2+1] = ClampFull<T>(output[i*2+1] + tmp * rCoef);
}
for (; i<m_windowSamples-m_halfSamples ; ++i)
{
float tmp = m_output[middle][i].im;
output[i*2] = ClampFull<T>(output[i*2] + tmp * lCoef);
output[i*2+1] = ClampFull<T>(output[i*2+1] + tmp * rCoef);
}
for (t=0 ; i<m_windowSamples ; ++i, ++t)
{
float tmp = m_output[middle][i].im * (1.f - m_hammingTable[t]) +
m_output[last][i].im * m_hammingTable[t];
output[i*2] = ClampFull<T>(output[i*2] + tmp * lCoef);
output[i*2+1] = ClampFull<T>(output[i*2+1] + tmp * rCoef);
}
}
template void WindowedHilbert::Output<int16_t>(int16_t* output, float lCoef, float rCoef) const;
template void WindowedHilbert::Output<int32_t>(int32_t* output, float lCoef, float rCoef) const;
template void WindowedHilbert::Output<float>(float* output, float lCoef, float rCoef) const;
#endif
template <> int16_t* LtRtProcessing::_getInBuf<int16_t>() { return m_16Buffer.get(); }
template <> int32_t* LtRtProcessing::_getInBuf<int32_t>() { return m_32Buffer.get(); }
template <> float* LtRtProcessing::_getInBuf<float>() { return m_fltBuffer.get(); }
template <> int16_t* LtRtProcessing::_getOutBuf<int16_t>() { return m_16Buffer.get() + m_outputOffset; }
template <> int32_t* LtRtProcessing::_getOutBuf<int32_t>() { return m_32Buffer.get() + m_outputOffset; }
template <> float* LtRtProcessing::_getOutBuf<float>() { return m_fltBuffer.get() + m_outputOffset; }
LtRtProcessing::LtRtProcessing(int _5msFrames, const AudioVoiceEngineMixInfo& mixInfo)
: m_inMixInfo(mixInfo), m_5msFrames(_5msFrames), m_5msFramesHalf(_5msFrames / 2),
m_outputOffset(m_5msFrames * 5 * 2), m_hilbertSL(_5msFrames), m_hilbertSR(_5msFrames)
{
m_inMixInfo.m_channels = AudioChannelSet::Surround51;
m_inMixInfo.m_channelMap.m_channelCount = 5;
m_inMixInfo.m_channelMap.m_channels[0] = AudioChannel::FrontLeft;
m_inMixInfo.m_channelMap.m_channels[1] = AudioChannel::FrontRight;
m_inMixInfo.m_channelMap.m_channels[2] = AudioChannel::FrontCenter;
m_inMixInfo.m_channelMap.m_channels[3] = AudioChannel::RearLeft;
m_inMixInfo.m_channelMap.m_channels[4] = AudioChannel::RearRight;
int samples = m_5msFrames * (5 * 2 + 2 * 2);
switch (mixInfo.m_sampleFormat)
{
case SOXR_INT16_I:
m_16Buffer.reset(new int16_t[samples]);
memset(m_16Buffer.get(), 0, sizeof(int16_t) * samples);
break;
case SOXR_INT32_I:
m_32Buffer.reset(new int32_t[samples]);
memset(m_32Buffer.get(), 0, sizeof(int32_t) * samples);
break;
case SOXR_FLOAT32_I:
m_fltBuffer.reset(new float[samples]);
memset(m_fltBuffer.get(), 0, sizeof(float) * samples);
break;
default:
break;
}
}
template <typename T>
void LtRtProcessing::Process(const T* input, T* output, int frameCount)
{
int outFramesRem = frameCount;
T* inBuf = _getInBuf<T>();
T* outBuf = _getOutBuf<T>();
int tail = std::min(m_5msFrames * 2, m_bufferTail + frameCount);
int samples = (tail - m_bufferTail) * 5;
memmove(&inBuf[m_bufferTail * 5], input, samples * sizeof(float));
input += samples;
frameCount -= tail - m_bufferTail;
int bufIdx = m_bufferTail / m_5msFrames;
if (tail / m_5msFrames > bufIdx)
{
T* in = &inBuf[bufIdx * m_5msFrames * 5];
T* out = &outBuf[bufIdx * m_5msFrames * 2];
m_hilbertSL.AddWindow(in + 3, 5);
m_hilbertSR.AddWindow(in + 4, 5);
// x(:,1) + sqrt(.5)*x(:,3) + sqrt(19/25)*x(:,4) + sqrt(6/25)*x(:,5)
// x(:,2) + sqrt(.5)*x(:,3) - sqrt(6/25)*x(:,4) - sqrt(19/25)*x(:,5)
if (bufIdx)
{
int delayI = -m_5msFramesHalf;
for (int i=0 ; i<m_5msFrames ; ++i, ++delayI)
{
out[i * 2] = ClampFull<T>(in[delayI * 5] + 0.7071068f * in[delayI * 5 + 2]);
out[i * 2 + 1] = ClampFull<T>(in[delayI * 5 + 1] + 0.7071068f * in[delayI * 5 + 2]);
}
}
else
{
int delayI = m_5msFrames * 2 - m_5msFramesHalf;
int i;
for (i=0 ; i<m_5msFramesHalf ; ++i, ++delayI)
{
out[i * 2] = ClampFull<T>(in[delayI * 5] + 0.7071068f * in[delayI * 5 + 2]);
out[i * 2 + 1] = ClampFull<T>(in[delayI * 5 + 1] + 0.7071068f * in[delayI * 5 + 2]);
}
delayI = 0;
for (; i<m_5msFrames ; ++i, ++delayI)
{
out[i * 2] = ClampFull<T>(in[delayI * 5] + 0.7071068f * in[delayI * 5 + 2]);
out[i * 2 + 1] = ClampFull<T>(in[delayI * 5 + 1] + 0.7071068f * in[delayI * 5 + 2]);
}
}
#if INTEL_IPP
m_hilbertSL.Output(out, 0.8717798f, 0.4898979f);
m_hilbertSR.Output(out, -0.4898979f, -0.8717798f);
#endif
}
m_bufferTail = tail;
if (frameCount)
{
samples = frameCount * 5;
memmove(inBuf, input, samples * sizeof(float));
m_bufferTail = frameCount;
}
int head = std::min(m_5msFrames * 2, m_bufferHead + outFramesRem);
samples = (head - m_bufferHead) * 2;
memmove(output, outBuf + m_bufferHead * 2, samples * sizeof(float));
output += samples;
outFramesRem -= head - m_bufferHead;
m_bufferHead = head;
if (outFramesRem)
{
samples = outFramesRem * 2;
memmove(output, outBuf, samples * sizeof(float));
m_bufferHead = outFramesRem;
}
}
template void LtRtProcessing::Process<int16_t>(const int16_t* input, int16_t* output, int frameCount);
template void LtRtProcessing::Process<int32_t>(const int32_t* input, int32_t* output, int frameCount);
template void LtRtProcessing::Process<float>(const float* input, float* output, int frameCount);
}

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#ifndef BOO_LTRTPROCESSING_HPP
#define BOO_LTRTPROCESSING_HPP
#include "boo/System.hpp"
#include "boo/audiodev/IAudioVoice.hpp"
#include "Common.hpp"
#include <memory>
#if INTEL_IPP
#include "ipp.h"
#endif
namespace boo
{
#if INTEL_IPP
class WindowedHilbert
{
IppsHilbertSpec* m_spec;
Ipp8u* m_buffer;
int m_windowSamples, m_halfSamples;
int m_bufIdx = 0;
int m_bufferTail = 0;
std::unique_ptr<Ipp32f[]> m_inputBuf;
std::unique_ptr<Ipp32fc[]> m_outputBuf;
Ipp32fc* m_output[4];
std::unique_ptr<Ipp32f[]> m_hammingTable;
void _AddWindow();
public:
explicit WindowedHilbert(int windowSamples);
~WindowedHilbert();
void AddWindow(const float* input, int stride);
void AddWindow(const int32_t* input, int stride);
void AddWindow(const int16_t* input, int stride);
template <typename T>
void Output(T* output, float lCoef, float rCoef) const;
};
#endif
class LtRtProcessing
{
AudioVoiceEngineMixInfo m_inMixInfo;
int m_5msFrames;
int m_5msFramesHalf;
int m_outputOffset;
int m_bufferTail = 0;
int m_bufferHead = 0;
std::unique_ptr<int16_t[]> m_16Buffer;
std::unique_ptr<int32_t[]> m_32Buffer;
std::unique_ptr<float[]> m_fltBuffer;
#if INTEL_IPP
WindowedHilbert m_hilbertSL, m_hilbertSR;
#endif
template <typename T> T* _getInBuf();
template <typename T> T* _getOutBuf();
public:
LtRtProcessing(int _5msFrames, const AudioVoiceEngineMixInfo& mixInfo);
template <typename T>
void Process(const T* input, T* output, int frameCount);
const AudioVoiceEngineMixInfo& inMixInfo() const { return m_inMixInfo; }
};
}
#endif // BOO_LTRTPROCESSING_HPP