[DEV] update new ETK

This commit is contained in:
2017-09-26 15:57:44 +02:00
parent c3d78cf387
commit 0c57614b64
28 changed files with 339 additions and 319 deletions

View File

@@ -6,11 +6,11 @@
#include <audio/river/io/Group.hpp>
#include <audio/river/debug.hpp>
#include "Node.hpp"
#include "NodeAEC.hpp"
#include "NodeOrchestra.hpp"
#include "NodePortAudio.hpp"
#include "Node.hpp"
#include <audio/river/io/Node.hpp>
#include <audio/river/io/NodeAEC.hpp>
#include <audio/river/io/NodeOrchestra.hpp>
#include <audio/river/io/NodePortAudio.hpp>
#include <audio/river/io/Node.hpp>
void audio::river::io::Group::createFrom(const ejson::Document& _obj, const etk::String& _name) {
RIVER_INFO("Create Group[" << _name << "] (START) ___________________________");

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@@ -15,10 +15,11 @@
#include <etk/os/FSNode.hpp>
#include <ememory/memory.hpp>
#include <etk/types.hpp>
#include <utility>
#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
#include <portaudio/portaudio.h>
extern "C" {
#include <portaudio/portaudio.h>
}
#endif
static etk::String basicAutoConfig =
@@ -68,7 +69,7 @@ audio::river::io::Manager::Manager() {
void audio::river::io::Manager::init(const etk::String& _filename) {
RIVER_ERROR("kjqsdhfkjqshdfkjqhsdskjdfhfkqjshqhskdjfhqsdfqsdqsdfqsdqsdfqsdfqsdfqsdfqsdfqsd");
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
if (_filename == "") {
if (m_config.load(pathToTheRiverConfigInHome) == false) {
RIVER_INFO("Load default config");
@@ -82,12 +83,12 @@ void audio::river::io::Manager::init(const etk::String& _filename) {
}
void audio::river::io::Manager::initString(const etk::String& _data) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
m_config.parse(_data);
}
void audio::river::io::Manager::unInit() {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
// TODO : ...
}
@@ -110,7 +111,7 @@ ememory::SharedPtr<audio::river::io::Manager> audio::river::io::Manager::getInst
etk::Vector<etk::String> audio::river::io::Manager::getListStreamInput() {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
etk::Vector<etk::String> output;
etk::Vector<etk::String> keys = m_config.getKeys();
for (auto &it : keys) {
@@ -127,7 +128,7 @@ etk::Vector<etk::String> audio::river::io::Manager::getListStreamInput() {
}
etk::Vector<etk::String> audio::river::io::Manager::getListStreamOutput() {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
etk::Vector<etk::String> output;
etk::Vector<etk::String> keys = m_config.getKeys();
for (auto &it : keys) {
@@ -144,7 +145,7 @@ etk::Vector<etk::String> audio::river::io::Manager::getListStreamOutput() {
}
etk::Vector<etk::String> audio::river::io::Manager::getListStreamVirtual() {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
etk::Vector<etk::String> output;
etk::Vector<etk::String> keys = m_config.getKeys();
for (auto &it : keys) {
@@ -164,7 +165,7 @@ etk::Vector<etk::String> audio::river::io::Manager::getListStreamVirtual() {
}
etk::Vector<etk::String> audio::river::io::Manager::getListStream() {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
etk::Vector<etk::String> output;
etk::Vector<etk::String> keys = m_config.getKeys();
for (auto &it : keys) {
@@ -180,7 +181,7 @@ etk::Vector<etk::String> audio::river::io::Manager::getListStream() {
}
ememory::SharedPtr<audio::river::io::Node> audio::river::io::Manager::getNode(const etk::String& _name) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
RIVER_WARNING("Get node : " << _name);
// search in the standalone list :
for (size_t iii=0; iii<m_list.size(); ++iii) {
@@ -193,7 +194,7 @@ ememory::SharedPtr<audio::river::io::Node> audio::river::io::Manager::getNode(co
}
// search in the group list:
{
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::iterator it(m_listGroup.begin());
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::Iterator it(m_listGroup.begin());
it != m_listGroup.end();
++it) {
if (it->second != nullptr) {
@@ -267,7 +268,7 @@ ememory::SharedPtr<audio::river::io::Node> audio::river::io::Manager::getNode(co
}
ememory::SharedPtr<audio::drain::VolumeElement> audio::river::io::Manager::getVolumeGroup(const etk::String& _name) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
if (_name == "") {
RIVER_ERROR("Try to create an audio group with no name ...");
return ememory::SharedPtr<audio::drain::VolumeElement>();
@@ -287,7 +288,7 @@ ememory::SharedPtr<audio::drain::VolumeElement> audio::river::io::Manager::getVo
}
bool audio::river::io::Manager::setVolume(const etk::String& _volumeName, float _valuedB) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
ememory::SharedPtr<audio::drain::VolumeElement> volume = getVolumeGroup(_volumeName);
if (volume == nullptr) {
RIVER_ERROR("Can not set volume ... : '" << _volumeName << "'");
@@ -309,7 +310,7 @@ bool audio::river::io::Manager::setVolume(const etk::String& _volumeName, float
}
float audio::river::io::Manager::getVolume(const etk::String& _volumeName) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
ememory::SharedPtr<audio::drain::VolumeElement> volume = getVolumeGroup(_volumeName);
if (volume == nullptr) {
RIVER_ERROR("Can not get volume ... : '" << _volumeName << "'");
@@ -323,7 +324,7 @@ etk::Pair<float,float> audio::river::io::Manager::getVolumeRange(const etk::Stri
}
void audio::river::io::Manager::setMute(const etk::String& _volumeName, bool _mute) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
ememory::SharedPtr<audio::drain::VolumeElement> volume = getVolumeGroup(_volumeName);
if (volume == nullptr) {
RIVER_ERROR("Can not set volume ... : '" << _volumeName << "'");
@@ -339,7 +340,7 @@ void audio::river::io::Manager::setMute(const etk::String& _volumeName, bool _mu
}
bool audio::river::io::Manager::getMute(const etk::String& _volumeName) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
ememory::SharedPtr<audio::drain::VolumeElement> volume = getVolumeGroup(_volumeName);
if (volume == nullptr) {
RIVER_ERROR("Can not get volume ... : '" << _volumeName << "'");
@@ -349,7 +350,7 @@ bool audio::river::io::Manager::getMute(const etk::String& _volumeName) {
}
void audio::river::io::Manager::generateDot(const etk::String& _filename) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
etk::FSNode node(_filename);
RIVER_INFO("Generate the DOT files: " << node);
if (node.fileOpenWrite() == false) {
@@ -369,7 +370,7 @@ void audio::river::io::Manager::generateDot(const etk::String& _filename) {
}
}
}
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::iterator it(m_listGroup.begin());
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::Iterator it(m_listGroup.begin());
it != m_listGroup.end();
++it) {
if (it->second != nullptr) {
@@ -388,7 +389,7 @@ void audio::river::io::Manager::generateDot(const etk::String& _filename) {
}
}
}
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::iterator it(m_listGroup.begin());
for (etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::Iterator it(m_listGroup.begin());
it != m_listGroup.end();
++it) {
if (it->second != nullptr) {
@@ -403,16 +404,15 @@ void audio::river::io::Manager::generateDot(const etk::String& _filename) {
}
ememory::SharedPtr<audio::river::io::Group> audio::river::io::Manager::getGroup(const etk::String& _name) {
Ethread::RecursiveLock lock(m_mutex);
ethread::RecursiveLock lock(m_mutex);
ememory::SharedPtr<audio::river::io::Group> out;
etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::iterator it = m_listGroup.find(_name);
etk::Map<etk::String, ememory::SharedPtr<audio::river::io::Group> >::Iterator it = m_listGroup.find(_name);
if (it == m_listGroup.end()) {
RIVER_INFO("Create a new group: " << _name << " (START)");
out = ememory::makeShared<audio::river::io::Group>();
if (out != nullptr) {
out->createFrom(m_config, _name);
etk::Pair<etk::String, ememory::SharedPtr<audio::river::io::Group> > plop(etk::String(_name), out);
m_listGroup.insert(plop);
m_listGroup.add(_name, out);
RIVER_INFO("Create a new group: " << _name << " ( END )");
} else {
RIVER_ERROR("Can not create new group: " << _name << " ( END )");

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@@ -8,10 +8,7 @@
#include <etk/String.hpp>
#include <etk/Vector.hpp>
#include <etk/Map.hpp>
#include <list>
#include <cstdint>
#include <ethread/Mutex.hpp>
#include <chrono>
#include <etk/Function.hpp>
#include <ememory/memory.hpp>
#include <audio/format.hpp>
@@ -19,6 +16,7 @@
#include <ejson/ejson.hpp>
#include <audio/drain/Volume.hpp>
#include <audio/river/io/Group.hpp>
#include <ethread/MutexRecursive.hpp>
namespace audio {
namespace river {
@@ -30,7 +28,7 @@ namespace audio {
*/
class Manager : public ememory::EnableSharedFromThis<Manager> {
private:
mutable std::recursive_mutex m_mutex; //!< prevent multiple access
mutable ethread::MutexRecursive m_mutex; //!< prevent multiple access
private:
/**
* @brief Constructor

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@@ -122,7 +122,7 @@ size_t audio::river::io::Node::getNumberOfInterface(enum audio::river::modeInter
size_t audio::river::io::Node::getNumberOfInterfaceAvaillable(enum audio::river::modeInterface _interfaceType) {
size_t out = 0;
for (size_t iii=0; iii<m_listAvaillable.size(); ++iii) {
ememory::SharedPtr<audio::river::Interface> element = m_listAvaillable[iii].lock();
auto element = m_listAvaillable[iii].lock();
if (element == nullptr) {
continue;
}
@@ -134,7 +134,7 @@ size_t audio::river::io::Node::getNumberOfInterfaceAvaillable(enum audio::river:
}
void audio::river::io::Node::registerAsRemote(const ememory::SharedPtr<audio::river::Interface>& _interface) {
etk::Vector<ememory::WeakPtr<audio::river::Interface> >::iterator it = m_listAvaillable.begin();
auto it = m_listAvaillable.begin();
while (it != m_listAvaillable.end()) {
if (it->expired() == true) {
it = m_listAvaillable.erase(it);
@@ -181,7 +181,7 @@ void audio::river::io::Node::interfaceRemove(const ememory::SharedPtr<audio::riv
void audio::river::io::Node::volumeChange() {
for (size_t iii=0; iii< m_listAvaillable.size(); ++iii) {
ememory::SharedPtr<audio::river::Interface> node = m_listAvaillable[iii].lock();
auto node = m_listAvaillable[iii].lock();
if (node != nullptr) {
node->systemVolumeChange();
}

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@@ -7,9 +7,6 @@
#include <etk/String.hpp>
#include <etk/Vector.hpp>
#include <list>
#include <cstdint>
#include <chrono>
#include <etk/Function.hpp>
#include <ememory/memory.hpp>
#include <audio/format.hpp>

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@@ -103,28 +103,27 @@ audio::river::io::NodeAEC::NodeAEC(const etk::String& _name, const ejson::Object
}
// set callback mode ...
m_interfaceFeedBack->setInputCallback(std::bind(&audio::river::io::NodeAEC::onDataReceivedFeedBack,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6));
m_interfaceFeedBack->setInputCallback([=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map) {
onDataReceivedFeedBack(_data, _time, _nbChunk, _format, _frequency, _map);
});
// set callback mode ...
m_interfaceMicrophone->setInputCallback(std::bind(&audio::river::io::NodeAEC::onDataReceivedMicrophone,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6));
m_bufferMicrophone.setCapacity(std::chrono::milliseconds(1000),
m_interfaceMicrophone->setInputCallback([=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map) {
onDataReceivedMicrophone(_data, _time, _nbChunk, _format, _frequency, _map);
});
m_bufferMicrophone.setCapacity(echrono::milliseconds(1000),
audio::getFormatBytes(hardwareFormat.getFormat())*hardwareFormat.getMap().size(),
hardwareFormat.getFrequency());
m_bufferFeedBack.setCapacity(std::chrono::milliseconds(1000),
m_bufferFeedBack.setCapacity(echrono::milliseconds(1000),
audio::getFormatBytes(hardwareFormat.getFormat()), // only one channel ...
hardwareFormat.getFrequency());
@@ -212,7 +211,7 @@ void audio::river::io::NodeAEC::process() {
delta = MicTime - fbTime;
}
RIVER_INFO("check delta " << delta.count() << " > " << m_sampleTime.count());
RIVER_INFO("check delta " << delta << " > " << m_sampleTime);
if (delta > m_sampleTime) {
// Synchronize if possible
if (MicTime < fbTime) {
@@ -238,7 +237,7 @@ void audio::river::io::NodeAEC::process() {
fbTime = m_bufferFeedBack.getReadTimeStamp();
if (MicTime-fbTime > m_sampleTime) {
RIVER_ERROR("Can not synchronize flow ... : " << MicTime << " != " << fbTime << " delta = " << (MicTime-fbTime).count()/1000 << " µs");
RIVER_ERROR("Can not synchronize flow ... : " << MicTime << " != " << fbTime << " delta = " << (MicTime-fbTime));
return;
}
etk::Vector<uint8_t> dataMic;
@@ -248,7 +247,7 @@ void audio::river::io::NodeAEC::process() {
while (true) {
MicTime = m_bufferMicrophone.getReadTimeStamp();
fbTime = m_bufferFeedBack.getReadTimeStamp();
RIVER_INFO(" process 256 samples ... micTime=" << MicTime << " fbTime=" << fbTime << " delta = " << (MicTime-fbTime).count());
RIVER_INFO(" process 256 samples ... micTime=" << MicTime << " fbTime=" << fbTime << " delta = " << (MicTime-fbTime));
m_bufferMicrophone.read(&dataMic[0], m_nbChunk);
m_bufferFeedBack.read(&dataFB[0], m_nbChunk);
RIVER_SAVE_FILE_MACRO(int16_t, "REC_Microphone_sync.raw", &dataMic[0], m_nbChunk*getHarwareFormat().getMap().size());

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@@ -197,28 +197,40 @@ audio::river::io::NodeFile::NodeFile(const etk::String& _name, const ejson::Obje
if (m_isInput == true) {
m_process.setInputConfig(hardwareFormat);
m_process.setOutputConfig(interfaceFormat);
err = m_interface.openStream(nullptr, &params,
hardwareFormat.getFormat(), hardwareFormat.getFrequency(), &m_rtaudioFrameSize,
std::bind(&audio::river::io::NodeFile::recordCallback,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_5,
std::placeholders::_6),
option
);
err = m_interface.openStream(nullptr,
&params,
hardwareFormat.getFormat(),
hardwareFormat.getFrequency(),
&m_rtaudioFrameSize,
[=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map
) {
recordCallback(_data, _time, _nbChunk, _map);
},
option
);
} else {
m_process.setInputConfig(interfaceFormat);
m_process.setOutputConfig(hardwareFormat);
err = m_interface.openStream(&params, nullptr,
hardwareFormat.getFormat(), hardwareFormat.getFrequency(), &m_rtaudioFrameSize,
std::bind(&audio::river::io::NodeFile::playbackCallback,
this,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6),
option
err = m_interface.openStream(&params,
nullptr,
hardwareFormat.getFormat(),
hardwareFormat.getFrequency(),
&m_rtaudioFrameSize,
[=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map
) {
playbackCallback(_data, _time, _nbChunk, _map);
},
option
);
}
if (err != audio::orchestra::error_none) {

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@@ -42,7 +42,7 @@ namespace audio {
audio::format m_format; //!< Format of the file
etk::Vector<audio::channel> m_map; //!< Map of the file
ememory::SharedPtr<ethread::Thread> m_thread; //!< playing thread of the flow
std::atomic<bool> m_alive; //!< thread is active
bool m_alive; //!< thread is active
protected:
virtual void start();
virtual void stop();

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@@ -128,28 +128,28 @@ audio::river::io::NodeMuxer::NodeMuxer(const etk::String& _name, const ejson::Ob
}
// set callback mode ...
m_interfaceInput1->setInputCallback(std::bind(&audio::river::io::NodeMuxer::onDataReceivedInput1,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6));
m_interfaceInput1->setInputCallback([=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map) {
onDataReceivedInput1(_data, _time, _nbChunk, _format, _frequency, _map);
});
// set callback mode ...
m_interfaceInput2->setInputCallback(std::bind(&audio::river::io::NodeMuxer::onDataReceivedInput2,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6));
m_interfaceInput2->setInputCallback([=](const void* _data,
const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map) {
onDataReceivedInput2(_data, _time, _nbChunk, _format, _frequency, _map);
});
m_bufferInput1.setCapacity(std::chrono::milliseconds(1000),
m_bufferInput1.setCapacity(echrono::milliseconds(1000),
audio::getFormatBytes(hardwareFormat.getFormat())*m_mapInput1.size(),
hardwareFormat.getFrequency());
m_bufferInput2.setCapacity(std::chrono::milliseconds(1000),
m_bufferInput2.setCapacity(echrono::milliseconds(1000),
audio::getFormatBytes(hardwareFormat.getFormat())*m_mapInput2.size(),
hardwareFormat.getFrequency());
@@ -243,7 +243,7 @@ void audio::river::io::NodeMuxer::process() {
} else {
delta = in1Time - in2Time;
}
RIVER_VERBOSE("check delta " << delta.count() << " > " << m_sampleTime.count());
RIVER_VERBOSE("check delta " << delta << " > " << m_sampleTime);
if (delta > m_sampleTime) {
// Synchronize if possible
if (in1Time < in2Time) {
@@ -271,7 +271,7 @@ void audio::river::io::NodeMuxer::process() {
in2Time = m_bufferInput2.getReadTimeStamp();
if (in1Time-in2Time > m_sampleTime) {
RIVER_ERROR("Can not synchronize flow ... : " << in1Time << " != " << in2Time << " delta = " << (in1Time-in2Time).count()/1000 << " µs");
RIVER_ERROR("Can not synchronize flow ... : " << in1Time << " != " << in2Time << " delta = " << (in1Time-in2Time));
return;
}
etk::Vector<uint8_t> dataIn1;
@@ -282,7 +282,7 @@ void audio::river::io::NodeMuxer::process() {
while (true) {
in1Time = m_bufferInput1.getReadTimeStamp();
in2Time = m_bufferInput2.getReadTimeStamp();
//RIVER_INFO(" process 256 samples ... in1Time=" << in1Time << " in2Time=" << in2Time << " delta = " << (in1Time-in2Time).count());
//RIVER_INFO(" process 256 samples ... in1Time=" << in1Time << " in2Time=" << in2Time << " delta = " << (in1Time-in2Time));
m_bufferInput1.read(&dataIn1[0], 256);
m_bufferInput2.read(&dataIn2[0], 256);
//RIVER_SAVE_FILE_MACRO(int16_t, "REC_muxer_output_1.raw", &dataIn1[0], 256 * m_mapInput1.size());

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@@ -198,29 +198,39 @@ audio::river::io::NodeOrchestra::NodeOrchestra(const etk::String& _name, const e
if (m_isInput == true) {
m_process.setInputConfig(hardwareFormat);
m_process.setOutputConfig(interfaceFormat);
err = m_interface.openStream(nullptr, &params,
hardwareFormat.getFormat(), hardwareFormat.getFrequency(), &m_rtaudioFrameSize,
std::bind(&audio::river::io::NodeOrchestra::recordCallback,
this,
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_5,
std::placeholders::_6),
option
);
err = m_interface.openStream(nullptr,
&params,
hardwareFormat.getFormat(),
hardwareFormat.getFrequency(),
&m_rtaudioFrameSize,
[=] (const void* _inputBuffer,
const audio::Time& _timeInput,
void* _outputBuffer,
const audio::Time& _timeOutput,
uint32_t _nbChunk,
const etk::Vector<audio::orchestra::status>& _status) {
return recordCallback(_inputBuffer, _timeInput, _nbChunk, _status);
},
option
);
} else {
m_process.setInputConfig(interfaceFormat);
m_process.setOutputConfig(hardwareFormat);
err = m_interface.openStream(&params, nullptr,
hardwareFormat.getFormat(), hardwareFormat.getFrequency(), &m_rtaudioFrameSize,
std::bind(&audio::river::io::NodeOrchestra::playbackCallback,
this,
std::placeholders::_3,
std::placeholders::_4,
std::placeholders::_5,
std::placeholders::_6),
option
);
err = m_interface.openStream(&params,
nullptr,
hardwareFormat.getFormat(),
hardwareFormat.getFrequency(),
&m_rtaudioFrameSize,
[=] (const void* _inputBuffer,
const audio::Time& _timeInput,
void* _outputBuffer,
const audio::Time& _timeOutput,
uint32_t _nbChunk,
const etk::Vector<audio::orchestra::status>& _status) {
return playbackCallback(_outputBuffer, _timeOutput, _nbChunk, _status);
},
option
);
}
if (err != audio::orchestra::error_none) {
RIVER_ERROR("Create stream : '" << m_name << "' mode=" << (m_isInput?"input":"output") << " can not create stream " << err);