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Some comment improvements, and portaudio API improvements. Also, disabled PortAudio PulseAudio backend as it is not working properly.
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This commit is contained in:
Anne de Jong 2024-02-06 14:59:51 +01:00
parent 7c8e6368ba
commit 7ce45e9c82
4 changed files with 302 additions and 304 deletions
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3
cmake/portaudio.cmake
View File

@ -4,7 +4,8 @@ if(LASP_HAS_PORTAUDIO)
if(WIN32) if(WIN32)
else() else()
set(PA_USE_ALSA TRUE CACHE BOOL "Build PortAudio with ALSA backend") set(PA_USE_ALSA TRUE CACHE BOOL "Build PortAudio with ALSA backend")
set(PA_USE_JACK TRUE CACHE BOOL "Build PortAudio with Jack backend") set(PA_USE_JACK FALSE CACHE BOOL "Build PortAudio with Jack backend")
set(PA_USE_PULSEAUDIO FALSE CACHE BOOL "Build PortAudio with PulseAudio backend")
# set(PA_ALSA_DYNAMIC FALSE CACHE BOOL "Build static library of ALSA") # set(PA_ALSA_DYNAMIC FALSE CACHE BOOL "Build static library of ALSA")
set(PA_BUILD_SHARED_LIBS FALSE CACHE BOOL "Build static library") set(PA_BUILD_SHARED_LIBS FALSE CACHE BOOL "Build static library")
endif() endif()

8
cpp_src/device/lasp_daq.h
View File

@ -48,6 +48,10 @@ public:
logicError, logicError,
}; };
// Below the only members of this class, which are public.
bool isRunning = false;
StreamError errorType{StreamError::noError};
/** /**
* @brief Map between error types and messages * @brief Map between error types and messages
*/ */
@ -61,7 +65,7 @@ public:
{StreamError::logicError, "Logic error (probably a bug)"}, {StreamError::logicError, "Logic error (probably a bug)"},
}; };
bool isRunning = false;
/** /**
* @brief Check if stream has error * @brief Check if stream has error
* *
@ -69,8 +73,6 @@ public:
*/ */
bool error() const { return errorType != StreamError::noError; }; bool error() const { return errorType != StreamError::noError; };
StreamError errorType{StreamError::noError};
std::string errorMsg() const { return errorMessages.at(errorType); } std::string errorMsg() const { return errorMessages.at(errorType); }
/** /**

107
cpp_src/device/lasp_streammgr.cpp
View File

@ -1,16 +1,19 @@
/* #define DEBUGTRACE_ENABLED */ /* #define DEBUGTRACE_ENABLED */
#include "lasp_streammgr.h" #include "lasp_streammgr.h"
#include "debugtrace.hpp"
#include "lasp_biquadbank.h"
#include "lasp_indatahandler.h"
#include "lasp_thread.h"
#include <algorithm>
#include <assert.h> #include <assert.h>
#include <algorithm>
#include <functional> #include <functional>
#include <iostream> #include <iostream>
#include <memory> #include <memory>
#include <mutex> #include <mutex>
#include "debugtrace.hpp"
#include "lasp_biquadbank.h"
#include "lasp_indatahandler.h"
#include "lasp_thread.h"
using std::cerr; using std::cerr;
using std::endl; using std::endl;
using rte = std::runtime_error; using rte = std::runtime_error;
@ -109,7 +112,6 @@ void StreamMgr::rescanDAQDevices_impl(std::function<void()> callback) {
} }
} }
void StreamMgr::inCallback(const DaqData &data) { void StreamMgr::inCallback(const DaqData &data) {
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
std::scoped_lock<std::mutex> lck(_inDataHandler_mtx); std::scoped_lock<std::mutex> lck(_inDataHandler_mtx);
@ -118,7 +120,6 @@ void StreamMgr::inCallback(const DaqData &data) {
if (std::count_if(_inputFilters.cbegin(), _inputFilters.cend(), if (std::count_if(_inputFilters.cbegin(), _inputFilters.cend(),
[](const auto &a) { return bool(a); }) > 0) { [](const auto &a) { return bool(a); }) > 0) {
/// Found a filter in vector of input filters. So we have to apply the /// Found a filter in vector of input filters. So we have to apply the
/// filters to each channel. /// filters to each channel.
@ -151,7 +152,6 @@ void StreamMgr::inCallback(const DaqData &data) {
} }
void StreamMgr::setSiggen(std::shared_ptr<Siggen> siggen) { void StreamMgr::setSiggen(std::shared_ptr<Siggen> siggen) {
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
checkRightThread(); checkRightThread();
@ -179,7 +179,8 @@ void StreamMgr::setSiggen(std::shared_ptr<Siggen> siggen) {
* *
* @return * @return
*/ */
template <typename T> bool fillData(DaqData &data, const vd &signal) { template <typename T>
bool fillData(DaqData &data, const vd &signal) {
/* DEBUGTRACE_ENTER; */ /* DEBUGTRACE_ENTER; */
assert(data.nframes == signal.size()); assert(data.nframes == signal.size());
@ -212,7 +213,6 @@ template <typename T> bool fillData(DaqData &data, const vd &signal) {
return true; return true;
} }
void StreamMgr::outCallback(DaqData &data) { void StreamMgr::outCallback(DaqData &data) {
/* DEBUGTRACE_ENTER; */ /* DEBUGTRACE_ENTER; */
std::scoped_lock<std::mutex> lck(_siggen_mtx); std::scoped_lock<std::mutex> lck(_siggen_mtx);
@ -220,21 +220,21 @@ void StreamMgr::outCallback(DaqData &data) {
if (_siggen) { if (_siggen) {
vd signal = _siggen->genSignal(data.nframes); vd signal = _siggen->genSignal(data.nframes);
switch (data.dtype) { switch (data.dtype) {
case (DataTypeDescriptor::DataType::dtype_fl32): case (DataTypeDescriptor::DataType::dtype_fl32):
fillData<float>(data, signal); fillData<float>(data, signal);
break; break;
case (DataTypeDescriptor::DataType::dtype_fl64): case (DataTypeDescriptor::DataType::dtype_fl64):
fillData<double>(data, signal); fillData<double>(data, signal);
break; break;
case (DataTypeDescriptor::DataType::dtype_int8): case (DataTypeDescriptor::DataType::dtype_int8):
fillData<int8_t>(data, signal); fillData<int8_t>(data, signal);
break; break;
case (DataTypeDescriptor::DataType::dtype_int16): case (DataTypeDescriptor::DataType::dtype_int16):
fillData<int16_t>(data, signal); fillData<int16_t>(data, signal);
break; break;
case (DataTypeDescriptor::DataType::dtype_int32): case (DataTypeDescriptor::DataType::dtype_int32):
fillData<int32_t>(data, signal); fillData<int32_t>(data, signal);
break; break;
} }
} else { } else {
// Set all values to 0. // Set all values to 0.
@ -257,8 +257,6 @@ StreamMgr::~StreamMgr() {
// virtual methods. This was really a bug. // virtual methods. This was really a bug.
_inputStream.reset(); _inputStream.reset();
_outputStream.reset(); _outputStream.reset();
} }
void StreamMgr::stopAllStreams() { void StreamMgr::stopAllStreams() {
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
@ -273,11 +271,11 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
bool isInput = std::count_if(config.inchannel_config.cbegin(), bool isInput = std::count_if(config.inchannel_config.cbegin(),
config.inchannel_config.cend(), config.inchannel_config.cend(),
[](auto &i) { return i.enabled; }); [](auto &i) { return i.enabled; }) > 0;
bool isOutput = std::count_if(config.outchannel_config.cbegin(), bool isOutput = std::count_if(config.outchannel_config.cbegin(),
config.outchannel_config.cend(), config.outchannel_config.cend(),
[](auto &i) { return i.enabled; }); [](auto &i) { return i.enabled; }) > 0;
// Find the first device that matches with the configuration // Find the first device that matches with the configuration
std::scoped_lock lck(_devices_mtx); std::scoped_lock lck(_devices_mtx);
@ -302,34 +300,40 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
bool isDuplex = isInput && isOutput; bool isDuplex = isInput && isOutput;
if (!isInput && !isOutput) { if (!isInput && !isOutput) {
throw rte("Neither input, nor output channels enabled for " throw rte(
"stream. Cannot start."); "Attempted stream start failed, stream does not have any enabled "
"channels. Please first enable channels in the channel configuration.");
} }
if (isInput && _inputStream) { if (isInput && _inputStream) {
throw rte("Error: an input stream is already running. Please " throw rte(
"first stop existing stream"); "Error: an input stream is already running. Please "
"first stop existing stream");
} else if (isOutput && _outputStream) { } else if (isOutput && _outputStream) {
throw rte("Error: output stream is already running. Please " throw rte(
"first stop existing stream"); "Error: output stream is already running. Please "
"first stop existing stream");
} else if (_inputStream) { } else if (_inputStream) {
if (_inputStream->duplexMode() && isOutput) { if (_inputStream->duplexMode() && isOutput) {
throw rte("Error: output stream is already running (in duplex mode). " throw rte(
"Please " "Error: output stream is already running (in duplex mode). "
"first stop existing stream"); "Please "
"first stop existing stream");
} }
} }
if (_outputStream && isInput && _outputStream->duplexModeForced && if (_outputStream && isInput && _outputStream->duplexModeForced &&
config.match(*_outputStream)) { config.match(*_outputStream)) {
throw rte("This device is already opened for output. If input is also " throw rte(
"required, please enable duplex mode for this device"); "This device is already opened for output. If input is also "
"required, please enable duplex mode for this device");
} }
if (_inputStream && isOutput && _inputStream->duplexModeForced && if (_inputStream && isOutput && _inputStream->duplexModeForced &&
config.match(*_inputStream)) { config.match(*_inputStream)) {
throw rte("This device is already opened for input. If output is also " throw rte(
"required, please enable duplex mode for this device"); "This device is already opened for input. If output is also "
"required, please enable duplex mode for this device");
} }
InDaqCallback inCallback; InDaqCallback inCallback;
@ -352,13 +356,13 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
d fs = daq->samplerate(); d fs = daq->samplerate();
/// Create input filters /// Create input filters
_inputFilters.clear(); _inputFilters.clear();
/// No input filter for monitor channel, which comes as the first input channel /// No input filter for monitor channel, which comes as the first input
/// In the list /// channel In the list
if (config.monitorOutput && devinfo->hasInternalOutputMonitor) { if (config.monitorOutput && devinfo->hasInternalOutputMonitor) {
_inputFilters.push_back(nullptr); _inputFilters.push_back(nullptr);
} }
for (auto &ch : daq->inchannel_config) { for (auto &ch : daq->inchannel_config) {
if (ch.enabled) { if (ch.enabled) {
if (ch.digitalHighPassCutOn < 0) { if (ch.digitalHighPassCutOn < 0) {
@ -371,7 +375,7 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
SeriesBiquad::firstOrderHighPass(fs, ch.digitalHighPassCutOn))); SeriesBiquad::firstOrderHighPass(fs, ch.digitalHighPassCutOn)));
} }
} }
} // End of input filter creation } // End of input filter creation
} }
if (isOutput) { if (isOutput) {
@ -398,7 +402,6 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
} }
} }
void StreamMgr::stopStream(const StreamType t) { void StreamMgr::stopStream(const StreamType t) {
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
checkRightThread(); checkRightThread();
@ -423,7 +426,7 @@ void StreamMgr::stopStream(const StreamType t) {
throw rte("Output stream is not running"); throw rte("Output stream is not running");
} }
_outputStream.reset(); _outputStream.reset();
} // end else } // end else
} }
} }
@ -436,8 +439,9 @@ void StreamMgr::addInDataHandler(InDataHandler *handler) {
if (std::find(_inDataHandlers.cbegin(), _inDataHandlers.cend(), handler) != if (std::find(_inDataHandlers.cbegin(), _inDataHandlers.cend(), handler) !=
_inDataHandlers.cend()) { _inDataHandlers.cend()) {
throw std::runtime_error("Error: handler already added. Probably start() " throw std::runtime_error(
"is called more than once on a handler object"); "Error: handler already added. Probably start() "
"is called more than once on a handler object");
} }
_inDataHandlers.push_back(handler); _inDataHandlers.push_back(handler);
DEBUGTRACE_PRINT(_inDataHandlers.size()); DEBUGTRACE_PRINT(_inDataHandlers.size());
@ -467,7 +471,6 @@ Daq::StreamStatus StreamMgr::getStreamStatus(const StreamType type) const {
} }
const Daq *StreamMgr::getDaq(StreamType type) const { const Daq *StreamMgr::getDaq(StreamType type) const {
checkRightThread(); checkRightThread();
if (type == StreamType::input) { if (type == StreamType::input) {

488
cpp_src/device/portaudio/lasp_portaudiodaq.cpp
View File

@ -3,23 +3,22 @@
#include "lasp_config.h" #include "lasp_config.h"
#if LASP_HAS_PORTAUDIO == 1 #if LASP_HAS_PORTAUDIO == 1
#include "lasp_portaudiodaq.h"
#include "portaudio.h"
#include <gsl-lite/gsl-lite.hpp> #include <gsl-lite/gsl-lite.hpp>
#include <mutex> #include <mutex>
#include <string> #include <string>
#include "lasp_portaudiodaq.h"
#include "portaudio.h"
using rte = std::runtime_error; using rte = std::runtime_error;
using std::cerr; using std::cerr;
using std::endl; using std::endl;
using std::string; using std::string;
using std::to_string; using std::to_string;
inline void throwIfError(PaError e) inline void throwIfError(PaError e) {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
if (e != paNoError) if (e != paNoError) {
{
throw rte(string("PortAudio backend error: ") + Pa_GetErrorText(e)); throw rte(string("PortAudio backend error: ") + Pa_GetErrorText(e));
} }
} }
@ -27,16 +26,14 @@ inline void throwIfError(PaError e)
/** /**
* @brief Device info, plus PortAudio stuff * @brief Device info, plus PortAudio stuff
*/ */
class OurPaDeviceInfo : public DeviceInfo class OurPaDeviceInfo : public DeviceInfo {
{ public:
public:
/** /**
* @brief Store instance to PaDeviceInfo. * @brief Store instance to PaDeviceInfo.
*/ */
PaDeviceInfo _paDevInfo; PaDeviceInfo _paDevInfo;
virtual std::unique_ptr<DeviceInfo> clone() const override final virtual std::unique_ptr<DeviceInfo> clone() const override final {
{
return std::make_unique<OurPaDeviceInfo>(*this); return std::make_unique<OurPaDeviceInfo>(*this);
} }
OurPaDeviceInfo &operator=(const OurPaDeviceInfo &) = delete; OurPaDeviceInfo &operator=(const OurPaDeviceInfo &) = delete;
@ -44,44 +41,40 @@ public:
OurPaDeviceInfo(const PaDeviceInfo &o) : DeviceInfo(), _paDevInfo(o) {} OurPaDeviceInfo(const PaDeviceInfo &o) : DeviceInfo(), _paDevInfo(o) {}
}; };
void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist) void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist) {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
try bool shouldPaTerminate = false;
{ try {
PaError err = Pa_Initialize(); PaError err = Pa_Initialize();
/// PortAudio says that Pa_Terminate() should not be called whenever there /// PortAudio says that Pa_Terminate() should not be called whenever there
/// is an error in Pa_Initialize(). This is opposite to what most examples /// is an error in Pa_Initialize(). This is opposite to what most examples
/// of PortAudio show. /// of PortAudio show.
throwIfError(err); throwIfError(err);
shouldPaTerminate = true;
auto fin = gsl::finally([&err] auto fin = gsl::finally([&err] {
{
DEBUGTRACE_PRINT("Terminating PortAudio instance"); DEBUGTRACE_PRINT("Terminating PortAudio instance");
err = Pa_Terminate(); err = Pa_Terminate();
if (err != paNoError) { if (err != paNoError) {
cerr << "Error terminating PortAudio. Do not know what to do." << endl; cerr << "Error terminating PortAudio. Do not know what to do." << endl;
} }); }
});
const PaHostApiIndex apicount = Pa_GetHostApiCount(); const PaHostApiIndex apicount = Pa_GetHostApiCount();
if (apicount < 0) if (apicount < 0) {
{
return; return;
} }
/* const PaDeviceInfo *deviceInfo; */ /* const PaDeviceInfo *deviceInfo; */
const int numDevices = Pa_GetDeviceCount(); const int numDevices = Pa_GetDeviceCount();
if (numDevices < 0) if (numDevices < 0) {
{
throw rte("PortAudio could not find any devices"); throw rte("PortAudio could not find any devices");
} }
for (us i = 0; i < (us)numDevices; i++) for (us i = 0; i < (us)numDevices; i++) {
{
/* DEBUGTRACE_PRINT(i); */ /* DEBUGTRACE_PRINT(i); */
bool hasDuplexMode = false;
const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i); const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
if (!deviceInfo) if (!deviceInfo) {
{
throw rte("No device info struct returned"); throw rte("No device info struct returned");
} }
OurPaDeviceInfo d(*deviceInfo); OurPaDeviceInfo d(*deviceInfo);
@ -90,36 +83,36 @@ void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist)
d.device_name = deviceInfo->name; d.device_name = deviceInfo->name;
const PaHostApiInfo *hostapiinfo = Pa_GetHostApiInfo(deviceInfo->hostApi); const PaHostApiInfo *hostapiinfo = Pa_GetHostApiInfo(deviceInfo->hostApi);
if (hostapiinfo == nullptr) if (hostapiinfo == nullptr) {
{
throw std::runtime_error("Hostapi nullptr!"); throw std::runtime_error("Hostapi nullptr!");
} }
switch (hostapiinfo->type) switch (hostapiinfo->type) {
{ case paALSA:
case paALSA: // Duplex mode for alsa
d.api = portaudioALSAApi; hasDuplexMode = true;
break; d.api = portaudioALSAApi;
case paASIO: break;
d.api = portaudioASIOApi; case paASIO:
break; d.api = portaudioASIOApi;
case paDirectSound: break;
d.api = portaudioDirectSoundApi; case paDirectSound:
break; d.api = portaudioDirectSoundApi;
case paMME: break;
d.api = portaudioWMMEApi; case paMME:
break; d.api = portaudioWMMEApi;
case paWDMKS: break;
d.api = portaudioWDMKS; case paWDMKS:
break; d.api = portaudioWDMKS;
case paWASAPI: break;
d.api = portaudioWASAPIApi; case paWASAPI:
break; d.api = portaudioWASAPIApi;
case paPulseAudio: break;
d.api = portaudioPulseApi; case paPulseAudio:
break; d.api = portaudioPulseApi;
default: break;
throw rte("Unimplemented portaudio API!"); default:
break; throw rte("Unimplemented portaudio API!");
break;
} }
d.availableDataTypes = {DataTypeDescriptor::DataType::dtype_int16, d.availableDataTypes = {DataTypeDescriptor::DataType::dtype_int16,
@ -128,7 +121,7 @@ void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist)
d.prefDataTypeIndex = 2; d.prefDataTypeIndex = 2;
d.availableSampleRates = {8000.0, 9600.0, 11025.0, 12000.0, 16000.0, d.availableSampleRates = {8000.0, 9600.0, 11025.0, 12000.0, 16000.0,
22050.0, 24000.0, 32000.0, 44100.0, 48000.0, 22050.0, 24000.0, 32000.0, 44100.0, 48000.0,
88200.0, 96000.0, 192000.0}; 88200.0, 96000.0, 192000.0};
d.prefSampleRateIndex = 9; d.prefSampleRateIndex = 9;
@ -148,8 +141,13 @@ void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist)
} }
} }
catch (rte &e) catch (rte &e) {
{ if (shouldPaTerminate) {
PaError err = Pa_Terminate();
if (err != paNoError) {
cerr << "Error terminating PortAudio. Do not know what to do." << endl;
}
}
cerr << "PortAudio backend error: " << e.what() << std::endl; cerr << "PortAudio backend error: " << e.what() << std::endl;
return; return;
} }
@ -174,16 +172,14 @@ static int rawPaCallback(const void *inputBuffer, void *outputBuffer,
const PaStreamCallbackTimeInfo *timeInfo, const PaStreamCallbackTimeInfo *timeInfo,
PaStreamCallbackFlags statusFlags, void *userData); PaStreamCallbackFlags statusFlags, void *userData);
class PortAudioDaq : public Daq class PortAudioDaq : public Daq {
{
bool _shouldPaTerminate = false;
PaStream *_stream = nullptr; PaStream *_stream = nullptr;
std::atomic<StreamStatus::StreamError> _streamError = std::atomic<StreamStatus::StreamError> _streamError =
StreamStatus::StreamError::noError; StreamStatus::StreamError::noError;
InDaqCallback _incallback; InDaqCallback _incallback;
OutDaqCallback _outcallback; OutDaqCallback _outcallback;
public: public:
PortAudioDaq(const OurPaDeviceInfo &devinfo_gen, PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
const DaqConfiguration &config); const DaqConfiguration &config);
@ -212,13 +208,11 @@ public:
}; };
std::unique_ptr<Daq> createPortAudioDevice(const DeviceInfo &devinfo, std::unique_ptr<Daq> createPortAudioDevice(const DeviceInfo &devinfo,
const DaqConfiguration &config) const DaqConfiguration &config) {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
const OurPaDeviceInfo *_info = const OurPaDeviceInfo *_info =
dynamic_cast<const OurPaDeviceInfo *>(&devinfo); dynamic_cast<const OurPaDeviceInfo *>(&devinfo);
if (_info == nullptr) if (_info == nullptr) {
{
throw rte("BUG: Could not cast DeviceInfo to OurPaDeviceInfo"); throw rte("BUG: Could not cast DeviceInfo to OurPaDeviceInfo");
} }
return std::make_unique<PortAudioDaq>(*_info, config); return std::make_unique<PortAudioDaq>(*_info, config);
@ -227,144 +221,143 @@ std::unique_ptr<Daq> createPortAudioDevice(const DeviceInfo &devinfo,
static int rawPaCallback(const void *inputBuffer, void *outputBuffer, static int rawPaCallback(const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer, unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo *timeInfo, const PaStreamCallbackTimeInfo *timeInfo,
PaStreamCallbackFlags statusFlags, void *userData) PaStreamCallbackFlags statusFlags, void *userData) {
{
return static_cast<PortAudioDaq *>(userData)->memberPaCallback( return static_cast<PortAudioDaq *>(userData)->memberPaCallback(
inputBuffer, outputBuffer, framesPerBuffer, timeInfo, statusFlags); inputBuffer, outputBuffer, framesPerBuffer, timeInfo, statusFlags);
} }
PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen, PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
const DaqConfiguration &config) const DaqConfiguration &config)
: Daq(devinfo_gen, config) : Daq(devinfo_gen, config) {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
PaError err = Pa_Initialize(); bool shouldPaTerminate = false;
/// PortAudio says that Pa_Terminate() should not be called whenever there try {
/// is an error in Pa_Initialize(). This is opposite to what most examples PaError err = Pa_Initialize();
/// of PortAudio show. /// PortAudio says that Pa_Terminate() should not be called whenever there
throwIfError(err); /// is an error in Pa_Initialize(). This is opposite to what most examples
/// of PortAudio show.
throwIfError(err);
// OK, Pa_Initialize successfully finished, it means we have to clean up with // OK, Pa_Initialize successfully finished, it means we have to clean up
// Pa_Terminate in the destructor. // with Pa_Terminate in the destructor.
_shouldPaTerminate = true; shouldPaTerminate = true;
// Going to find the device in the list. If its there, we have to retrieve // Going to find the device in the list. If its there, we have to retrieve
// the index, as this is required in the PaStreamParameters struct // the index, as this is required in the PaStreamParameters struct
int devindex = -1; int devindex = -1;
for (int i = 0; i < Pa_GetDeviceCount(); i++) for (int i = 0; i < Pa_GetDeviceCount(); i++) {
{ // DEBUGTRACE_PRINT(i);
// DEBUGTRACE_PRINT(i); bool ok = true;
bool ok = true; const PaDeviceInfo *info = Pa_GetDeviceInfo(i);
const PaDeviceInfo *info = Pa_GetDeviceInfo(i); if (!info) {
if (!info) throw rte("No device structure returned from PortAudio");
{ }
throw rte("No device structure returned from PortAudio"); ok &= string(info->name) == devinfo_gen.device_name;
ok &= info->hostApi == devinfo_gen._paDevInfo.hostApi;
ok &= info->maxInputChannels == devinfo_gen._paDevInfo.maxInputChannels;
ok &= info->maxOutputChannels == devinfo_gen._paDevInfo.maxOutputChannels;
ok &= info->defaultSampleRate == devinfo_gen._paDevInfo.defaultSampleRate;
if (ok) {
devindex = i;
}
} }
ok &= string(info->name) == devinfo_gen.device_name; if (devindex < 0) {
ok &= info->hostApi == devinfo_gen._paDevInfo.hostApi; throw rte(string("Device not found: ") + string(devinfo_gen.device_name));
ok &= info->maxInputChannels == devinfo_gen._paDevInfo.maxInputChannels;
ok &= info->maxOutputChannels == devinfo_gen._paDevInfo.maxOutputChannels;
ok &= info->defaultSampleRate == devinfo_gen._paDevInfo.defaultSampleRate;
if (ok)
{
devindex = i;
} }
}
if (devindex < 0)
{
throw rte(string("Device not found: ") + string(devinfo_gen.device_name));
}
using Dtype = DataTypeDescriptor::DataType; using Dtype = DataTypeDescriptor::DataType;
const Dtype dtype = dataType(); const Dtype dtype = dataType();
// Sample format is bit flag // Sample format is bit flag
PaSampleFormat format = paNonInterleaved; PaSampleFormat format = paNonInterleaved;
switch (dtype) switch (dtype) {
{ case Dtype::dtype_fl32:
case Dtype::dtype_fl32: DEBUGTRACE_PRINT("Datatype float32");
DEBUGTRACE_PRINT("Datatype float32"); format |= paFloat32;
format |= paFloat32; break;
break; case Dtype::dtype_fl64:
case Dtype::dtype_fl64: DEBUGTRACE_PRINT("Datatype float64");
DEBUGTRACE_PRINT("Datatype float64"); throw rte("Invalid data type specified for DAQ stream.");
throw rte("Invalid data type specified for DAQ stream."); break;
break; case Dtype::dtype_int8:
case Dtype::dtype_int8: DEBUGTRACE_PRINT("Datatype int8");
DEBUGTRACE_PRINT("Datatype int8"); format |= paInt8;
format |= paInt8; break;
break; case Dtype::dtype_int16:
case Dtype::dtype_int16: DEBUGTRACE_PRINT("Datatype int16");
DEBUGTRACE_PRINT("Datatype int16"); format |= paInt16;
format |= paInt16; break;
break; case Dtype::dtype_int32:
case Dtype::dtype_int32: DEBUGTRACE_PRINT("Datatype int32");
DEBUGTRACE_PRINT("Datatype int32"); format |= paInt32;
format |= paInt32; break;
break; default:
default: throw rte("Invalid data type specified for DAQ stream.");
throw rte("Invalid data type specified for DAQ stream."); break;
break; }
std::unique_ptr<PaStreamParameters> instreamParams;
std::unique_ptr<PaStreamParameters> outstreamParams;
if (neninchannels() > 0) {
instreamParams = std::make_unique<PaStreamParameters>(PaStreamParameters(
{.device = devindex,
.channelCount = (int)getHighestEnabledInChannel() + 1,
.sampleFormat = format,
.suggestedLatency = framesPerBlock() / samplerate(),
.hostApiSpecificStreamInfo = nullptr}));
}
if (nenoutchannels() > 0) {
outstreamParams = std::make_unique<PaStreamParameters>(PaStreamParameters(
{.device = devindex,
.channelCount = (int)getHighestEnabledOutChannel() + 1,
.sampleFormat = format,
.suggestedLatency = framesPerBlock() / samplerate(),
.hostApiSpecificStreamInfo = nullptr}));
}
// Next step: check whether we are OK
err = Pa_IsFormatSupported(instreamParams.get(), outstreamParams.get(),
samplerate());
throwIfError(err);
err = Pa_OpenStream(&_stream, // stream
instreamParams.get(), // inputParameters
outstreamParams.get(), // outputParameters
samplerate(), // yeah,
framesPerBlock(), // framesPerBuffer
paNoFlag, // streamFlags
rawPaCallback, this);
throwIfError(err);
assert(_stream);
} catch (rte &e) {
if (shouldPaTerminate) {
PaError err = Pa_Terminate();
if (err != paNoError) {
cerr << "Error terminating PortAudio. Do not know what to do." << endl;
}
}
throw;
} }
std::unique_ptr<PaStreamParameters> instreamParams;
std::unique_ptr<PaStreamParameters> outstreamParams;
if (neninchannels() > 0)
{
instreamParams = std::make_unique<PaStreamParameters>(
PaStreamParameters({.device = devindex,
.channelCount = (int)getHighestEnabledInChannel() + 1,
.sampleFormat = format,
.suggestedLatency = framesPerBlock() / samplerate(),
.hostApiSpecificStreamInfo = nullptr}));
}
if (nenoutchannels() > 0)
{
outstreamParams = std::make_unique<PaStreamParameters>(
PaStreamParameters({.device = devindex,
.channelCount = (int)getHighestEnabledOutChannel() + 1,
.sampleFormat = format,
.suggestedLatency = framesPerBlock() / samplerate(),
.hostApiSpecificStreamInfo = nullptr}));
}
// Next step: check whether we are OK
err = Pa_IsFormatSupported(instreamParams.get(), outstreamParams.get(),
samplerate());
throwIfError(err);
err = Pa_OpenStream(&_stream, // stream
instreamParams.get(), // inputParameters
outstreamParams.get(), // outputParameters
samplerate(), // yeah,
framesPerBlock(), // framesPerBuffer
paNoFlag, // streamFlags
rawPaCallback, this);
throwIfError(err);
} }
void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback) void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback) {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
assert(_stream); assert(_stream);
if (Pa_IsStreamActive(_stream))
{ if (Pa_IsStreamActive(_stream)) {
throw rte("Stream is already running"); throw rte("Stream is already running");
} }
// Logical XOR // Logical XOR
if (inCallback && outCallback) if (inCallback && outCallback) {
{ throw rte(
throw rte("Either input or output stream possible for RtAudio. " "Either input or output stream possible for PortAudio. "
"Stream duplex mode not provided."); "Stream duplex mode not provided.");
} }
if (neninchannels() > 0) if (neninchannels() > 0) {
{ if (!inCallback) {
if (!inCallback)
{
throw rte( throw rte(
"Input callback given, but stream does not provide input data"); "Input callback given, but stream does not provide input data");
@ -372,10 +365,8 @@ void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback)
_incallback = inCallback; _incallback = inCallback;
} }
if (nenoutchannels() > 0) if (nenoutchannels() > 0) {
{ if (!outCallback) {
if (!outCallback)
{
throw rte( throw rte(
"Output callback given, but stream does not provide output data"); "Output callback given, but stream does not provide output data");
} }
@ -385,86 +376,94 @@ void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback)
PaError err = Pa_StartStream(_stream); PaError err = Pa_StartStream(_stream);
throwIfError(err); throwIfError(err);
} }
void PortAudioDaq::stop() void PortAudioDaq::stop() {
{
DEBUGTRACE_ENTER; DEBUGTRACE_ENTER;
assert(_stream); assert(_stream);
if (Pa_IsStreamStopped(_stream)) if (Pa_IsStreamStopped(_stream) > 1) {
{
throw rte("Stream is already stopped"); throw rte("Stream is already stopped");
} }
PaError err = Pa_StopStream(_stream); PaError err = Pa_StopStream(_stream);
throwIfError(err); throwIfError(err);
} }
Daq::StreamStatus PortAudioDaq::getStreamStatus() const Daq::StreamStatus PortAudioDaq::getStreamStatus() const {
{ DEBUGTRACE_ENTER;
// Stores an error type and whether the
Daq::StreamStatus status; Daq::StreamStatus status;
// Copy over atomic flag. using StreamError = Daq::StreamStatus::StreamError;
status.errorType = _streamError; Daq::StreamStatus::StreamError errortype = _streamError.load();
// Check if stream is still running.
if (_stream) PaError err = Pa_IsStreamStopped(_stream);
{ if (err > 1) {
if (Pa_IsStreamActive(_stream)) // Stream is stopped due to an error in the callback. The exact error type
{ // is filled in in the if-statement above
status.isRunning = true; return status;
} else if (err == 0) {
// Still running
status.isRunning = true;
} else if (err < 0) {
// Stream encountered an error.
switch (err) {
case paInternalError:
errortype = StreamError::driverError;
break;
case paDeviceUnavailable:
errortype = StreamError::driverError;
break;
case paInputOverflowed:
errortype = StreamError::inputXRun;
break;
case paOutputUnderflowed:
errortype = StreamError::outputXRun;
break;
default:
errortype = StreamError::driverError;
cerr << "Portaudio backend error:" << Pa_GetErrorText(err) << endl;
break;
} }
} }
status.errorType = errortype;
return status; return status;
} }
PortAudioDaq::~PortAudioDaq() PortAudioDaq::~PortAudioDaq() {
{
PaError err; PaError err;
if (_stream) assert(_stream);
{ if (Pa_IsStreamActive(_stream)) {
if (Pa_IsStreamActive(_stream)) // Stop the stream first
{ stop();
stop();
}
err = Pa_CloseStream(_stream);
_stream = nullptr;
if (err != paNoError)
{
cerr << "Error closing PortAudio stream. Do not know what to do." << endl;
}
assert(_shouldPaTerminate);
} }
if (_shouldPaTerminate) err = Pa_CloseStream(_stream);
{ _stream = nullptr;
err = Pa_Terminate(); if (err != paNoError) {
if (err != paNoError) cerr << "Error closing PortAudio stream. Do not know what to do." << endl;
{ }
cerr << "Error terminating PortAudio. Do not know what to do." << endl;
} err = Pa_Terminate();
if (err != paNoError) {
cerr << "Error terminating PortAudio. Do not know what to do." << endl;
} }
} }
int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer, int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer, unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo *timeInfo, const PaStreamCallbackTimeInfo *timeInfo,
PaStreamCallbackFlags statusFlags) PaStreamCallbackFlags statusFlags) {
{ // DEBUGTRACE_ENTER;
DEBUGTRACE_ENTER;
typedef Daq::StreamStatus::StreamError se; typedef Daq::StreamStatus::StreamError se;
if (statusFlags & paPrimingOutput) if (statusFlags & paPrimingOutput) {
{
// Initial output buffers generated. So nothing with input yet // Initial output buffers generated. So nothing with input yet
return paContinue; return paContinue;
} }
if ((statusFlags & paInputUnderflow) || (statusFlags & paInputOverflow)) if ((statusFlags & paInputUnderflow) || (statusFlags & paInputOverflow)) {
{
_streamError = se::inputXRun; _streamError = se::inputXRun;
return paAbort; return paAbort;
} }
if ((statusFlags & paOutputUnderflow) || (statusFlags & paOutputOverflow)) if ((statusFlags & paOutputUnderflow) || (statusFlags & paOutputOverflow)) {
{
_streamError = se::outputXRun; _streamError = se::outputXRun;
return paAbort; return paAbort;
} }
if (framesPerBuffer != framesPerBlock()) if (framesPerBuffer != framesPerBlock()) {
{
cerr << "Logic error: expected a block size of: " << framesPerBlock() cerr << "Logic error: expected a block size of: " << framesPerBlock()
<< endl; << endl;
_streamError = se::logicError; _streamError = se::logicError;
@ -476,8 +475,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
const auto &dtype_descr = dtypeDescr(); const auto &dtype_descr = dtypeDescr();
const auto dtype = dataType(); const auto dtype = dataType();
const us sw = dtype_descr.sw; const us sw = dtype_descr.sw;
if (inputBuffer) if (inputBuffer) {
{
assert(_incallback); assert(_incallback);
std::vector<byte_t *> ptrs; std::vector<byte_t *> ptrs;
ptrs.reserve(neninchannels); ptrs.reserve(neninchannels);
@ -489,10 +487,8 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
/// Only pass on the pointers of the channels we want. inputBuffer is /// Only pass on the pointers of the channels we want. inputBuffer is
/// noninterleaved, as specified in PortAudioDaq constructor. /// noninterleaved, as specified in PortAudioDaq constructor.
for (us ch = ch_min; ch <= ch_max; ch++) for (us ch = ch_min; ch <= ch_max; ch++) {
{ if (inchannel_config.at(ch).enabled) {
if (inchannel_config.at(ch).enabled)
{
byte_t *ch_ptr = byte_t *ch_ptr =
reinterpret_cast<byte_t **>(const_cast<void *>(inputBuffer))[ch]; reinterpret_cast<byte_t **>(const_cast<void *>(inputBuffer))[ch];
ptrs.push_back(ch_ptr); ptrs.push_back(ch_ptr);
@ -504,8 +500,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
_incallback(d); _incallback(d);
} }
if (outputBuffer) if (outputBuffer) {
{
assert(_outcallback); assert(_outcallback);
std::vector<byte_t *> ptrs; std::vector<byte_t *> ptrs;
ptrs.reserve(nenoutchannels); ptrs.reserve(nenoutchannels);
@ -517,10 +512,8 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
assert(ch_min < noutchannels); assert(ch_min < noutchannels);
assert(ch_max < noutchannels); assert(ch_max < noutchannels);
/// Only pass on the pointers of the channels we want /// Only pass on the pointers of the channels we want
for (us ch = ch_min; ch <= ch_max; ch++) for (us ch = ch_min; ch <= ch_max; ch++) {
{ if (outchannel_config.at(ch).enabled) {
if (outchannel_config.at(ch).enabled)
{
byte_t *ch_ptr = reinterpret_cast<byte_t **>(outputBuffer)[ch]; byte_t *ch_ptr = reinterpret_cast<byte_t **>(outputBuffer)[ch];
ptrs.push_back(ch_ptr); ptrs.push_back(ch_ptr);
} }
@ -530,8 +523,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
_outcallback(d); _outcallback(d);
// Copy over the buffer // Copy over the buffer
us j = 0; us j = 0;
for (auto ptr : ptrs) for (auto ptr : ptrs) {
{
d.copyToRaw(j, ptr); d.copyToRaw(j, ptr);
j++; j++;
} }