Some comment improvements, and portaudio API improvements. Also, disabled PortAudio PulseAudio backend as it is not working properly.

cmake/portaudio.cmake

@@ -4,7 +4,8 @@ if(LASP_HAS_PORTAUDIO)
     if(WIN32)
     else()
         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_BUILD_SHARED_LIBS FALSE CACHE BOOL "Build static library")
     endif()

cpp_src/device/lasp_daq.h

@@ -48,6 +48,10 @@ public:
       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
      */
@@ -61,7 +65,7 @@ public:
         {StreamError::logicError, "Logic error (probably a bug)"},
     };
 
-    bool isRunning = false;
+
     /**
      * @brief Check if stream has error
      *
@@ -69,8 +73,6 @@ public:
      */
     bool error() const { return errorType != StreamError::noError; };
 
-    StreamError errorType{StreamError::noError};
-
     std::string errorMsg() const { return errorMessages.at(errorType); }
 
     /**

cpp_src/device/lasp_streammgr.cpp

@@ -1,16 +1,19 @@
 /* #define DEBUGTRACE_ENABLED */
 #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 <algorithm>
 #include <functional>
 #include <iostream>
 #include <memory>
 #include <mutex>
 
+#include "debugtrace.hpp"
+#include "lasp_biquadbank.h"
+#include "lasp_indatahandler.h"
+#include "lasp_thread.h"
+
 using std::cerr;
 using std::endl;
 using rte = std::runtime_error;
@@ -109,7 +112,6 @@ void StreamMgr::rescanDAQDevices_impl(std::function<void()> callback) {
   }
 }
 void StreamMgr::inCallback(const DaqData &data) {
-
   DEBUGTRACE_ENTER;
 
   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(),
                     [](const auto &a) { return bool(a); }) > 0) {
-
     /// Found a filter in vector of input filters. So we have to apply the
     /// filters to each channel.
 
@@ -151,7 +152,6 @@ void StreamMgr::inCallback(const DaqData &data) {
 }
 
 void StreamMgr::setSiggen(std::shared_ptr<Siggen> siggen) {
-
   DEBUGTRACE_ENTER;
   checkRightThread();
 
@@ -179,7 +179,8 @@ void StreamMgr::setSiggen(std::shared_ptr<Siggen> siggen) {
  *
  * @return
  */
-template <typename T> bool fillData(DaqData &data, const vd &signal) {
+template <typename T>
+bool fillData(DaqData &data, const vd &signal) {
   /* DEBUGTRACE_ENTER; */
   assert(data.nframes == signal.size());
 
@@ -212,7 +213,6 @@ template <typename T> bool fillData(DaqData &data, const vd &signal) {
   return true;
 }
 void StreamMgr::outCallback(DaqData &data) {
-
   /* DEBUGTRACE_ENTER; */
 
   std::scoped_lock<std::mutex> lck(_siggen_mtx);
@@ -257,8 +257,6 @@ StreamMgr::~StreamMgr() {
   // virtual methods. This was really a bug.
   _inputStream.reset();
   _outputStream.reset();
-
-
 }
 void StreamMgr::stopAllStreams() {
   DEBUGTRACE_ENTER;
@@ -273,11 +271,11 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
 
   bool isInput = std::count_if(config.inchannel_config.cbegin(),
                                config.inchannel_config.cend(),
-                               [](auto &i) { return i.enabled; });
+                               [](auto &i) { return i.enabled; }) > 0;
 
   bool isOutput = std::count_if(config.outchannel_config.cbegin(),
                                 config.outchannel_config.cend(),
-                                [](auto &i) { return i.enabled; });
+                                [](auto &i) { return i.enabled; }) > 0;
 
   // Find the first device that matches with the configuration
   std::scoped_lock lck(_devices_mtx);
@@ -302,19 +300,23 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
   bool isDuplex = isInput && isOutput;
 
   if (!isInput && !isOutput) {
-    throw rte("Neither input, nor output channels enabled for "
-              "stream. Cannot start.");
+    throw rte(
+        "Attempted stream start failed, stream does not have any enabled "
+        "channels. Please first enable channels in the channel configuration.");
   }
 
   if (isInput && _inputStream) {
-    throw rte("Error: an input stream is already running. Please "
+    throw rte(
+        "Error: an input stream is already running. Please "
         "first stop existing stream");
   } else if (isOutput && _outputStream) {
-    throw rte("Error: output stream is already running. Please "
+    throw rte(
+        "Error: output stream is already running. Please "
         "first stop existing stream");
   } else if (_inputStream) {
     if (_inputStream->duplexMode() && isOutput) {
-      throw rte("Error: output stream is already running (in duplex mode). "
+      throw rte(
+          "Error: output stream is already running (in duplex mode). "
           "Please "
           "first stop existing stream");
     }
@@ -322,13 +324,15 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
 
   if (_outputStream && isInput && _outputStream->duplexModeForced &&
       config.match(*_outputStream)) {
-    throw rte("This device is already opened for output. If input is also "
+    throw rte(
+        "This device is already opened for output. If input is also "
         "required, please enable duplex mode for this device");
   }
 
   if (_inputStream && isOutput && _inputStream->duplexModeForced &&
       config.match(*_inputStream)) {
-    throw rte("This device is already opened for input. If output is also "
+    throw rte(
+        "This device is already opened for input. If output is also "
         "required, please enable duplex mode for this device");
   }
 
@@ -353,8 +357,8 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
     /// Create input filters
     _inputFilters.clear();
 
-    /// No input filter for monitor channel, which comes as the first input channel
-	/// In the list
+    /// No input filter for monitor channel, which comes as the first input
+    /// channel In the list
     if (config.monitorOutput && devinfo->hasInternalOutputMonitor) {
       _inputFilters.push_back(nullptr);
     }
@@ -398,7 +402,6 @@ void StreamMgr::startStream(const DaqConfiguration &config) {
   }
 }
 void StreamMgr::stopStream(const StreamType t) {
-
   DEBUGTRACE_ENTER;
   checkRightThread();
 
@@ -436,7 +439,8 @@ void StreamMgr::addInDataHandler(InDataHandler *handler) {
 
   if (std::find(_inDataHandlers.cbegin(), _inDataHandlers.cend(), handler) !=
       _inDataHandlers.cend()) {
-    throw std::runtime_error("Error: handler already added. Probably start() "
+    throw std::runtime_error(
+        "Error: handler already added. Probably start() "
         "is called more than once on a handler object");
   }
   _inDataHandlers.push_back(handler);
@@ -467,7 +471,6 @@ Daq::StreamStatus StreamMgr::getStreamStatus(const StreamType type) const {
 }
 
 const Daq *StreamMgr::getDaq(StreamType type) const {
-
   checkRightThread();
 
   if (type == StreamType::input) {

cpp_src/device/portaudio/lasp_portaudiodaq.cpp

@@ -3,23 +3,22 @@
 #include "lasp_config.h"
 
 #if LASP_HAS_PORTAUDIO == 1
-#include "lasp_portaudiodaq.h"
-#include "portaudio.h"
 #include <gsl-lite/gsl-lite.hpp>
 #include <mutex>
 #include <string>
 
+#include "lasp_portaudiodaq.h"
+#include "portaudio.h"
+
 using rte = std::runtime_error;
 using std::cerr;
 using std::endl;
 using std::string;
 using std::to_string;
 
-inline void throwIfError(PaError e)
-{
+inline void throwIfError(PaError e) {
   DEBUGTRACE_ENTER;
-  if (e != paNoError)
-  {
+  if (e != paNoError) {
     throw rte(string("PortAudio backend error: ") + Pa_GetErrorText(e));
   }
 }
@@ -27,16 +26,14 @@ inline void throwIfError(PaError e)
 /**
  * @brief Device info, plus PortAudio stuff
  */
-class OurPaDeviceInfo : public DeviceInfo
-{
+class OurPaDeviceInfo : public DeviceInfo {
  public:
   /**
    * @brief Store instance to PaDeviceInfo.
    */
   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);
   }
   OurPaDeviceInfo &operator=(const OurPaDeviceInfo &) = delete;
@@ -44,44 +41,40 @@ public:
   OurPaDeviceInfo(const PaDeviceInfo &o) : DeviceInfo(), _paDevInfo(o) {}
 };
 
-void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist)
-{
+void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist) {
   DEBUGTRACE_ENTER;
-  try
-  {
-
+  bool shouldPaTerminate = false;
+  try {
     PaError err = Pa_Initialize();
     /// PortAudio says that Pa_Terminate() should not be called whenever there
     /// is an error in Pa_Initialize(). This is opposite to what most examples
     /// of PortAudio show.
     throwIfError(err);
+    shouldPaTerminate = true;
 
-    auto fin = gsl::finally([&err]
-                            {
+    auto fin = gsl::finally([&err] {
       DEBUGTRACE_PRINT("Terminating PortAudio instance");
       err = Pa_Terminate();
       if (err != paNoError) {
         cerr << "Error terminating PortAudio. Do not know what to do." << endl;
-      } });
+      }
+    });
 
     const PaHostApiIndex apicount = Pa_GetHostApiCount();
-    if (apicount < 0)
-    {
+    if (apicount < 0) {
       return;
     }
     /* const PaDeviceInfo *deviceInfo; */
     const int numDevices = Pa_GetDeviceCount();
-    if (numDevices < 0)
-    {
+    if (numDevices < 0) {
       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); */
+      bool hasDuplexMode = false;
 
       const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
-      if (!deviceInfo)
-      {
+      if (!deviceInfo) {
         throw rte("No device info struct returned");
       }
       OurPaDeviceInfo d(*deviceInfo);
@@ -90,13 +83,13 @@ void fillPortAudioDeviceInfo(DeviceInfoList &devinfolist)
       d.device_name = deviceInfo->name;
 
       const PaHostApiInfo *hostapiinfo = Pa_GetHostApiInfo(deviceInfo->hostApi);
-      if (hostapiinfo == nullptr)
-      {
+      if (hostapiinfo == nullptr) {
         throw std::runtime_error("Hostapi nullptr!");
       }
-      switch (hostapiinfo->type)
-      {
+      switch (hostapiinfo->type) {
         case paALSA:
+        // Duplex mode for alsa
+          hasDuplexMode = true;
           d.api = portaudioALSAApi;
           break;
         case paASIO:
@@ -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;
     return;
   }
@@ -174,9 +172,7 @@ static int rawPaCallback(const void *inputBuffer, void *outputBuffer,
                          const PaStreamCallbackTimeInfo *timeInfo,
                          PaStreamCallbackFlags statusFlags, void *userData);
 
-class PortAudioDaq : public Daq
-{
-  bool _shouldPaTerminate = false;
+class PortAudioDaq : public Daq {
   PaStream *_stream = nullptr;
   std::atomic<StreamStatus::StreamError> _streamError =
       StreamStatus::StreamError::noError;
@@ -212,13 +208,11 @@ public:
 };
 
 std::unique_ptr<Daq> createPortAudioDevice(const DeviceInfo &devinfo,
-                                           const DaqConfiguration &config)
-{
+                                           const DaqConfiguration &config) {
   DEBUGTRACE_ENTER;
   const OurPaDeviceInfo *_info =
       dynamic_cast<const OurPaDeviceInfo *>(&devinfo);
-  if (_info == nullptr)
-  {
+  if (_info == nullptr) {
     throw rte("BUG: Could not cast DeviceInfo to OurPaDeviceInfo");
   }
   return std::make_unique<PortAudioDaq>(*_info, config);
@@ -227,38 +221,35 @@ std::unique_ptr<Daq> createPortAudioDevice(const DeviceInfo &devinfo,
 static int rawPaCallback(const void *inputBuffer, void *outputBuffer,
                          unsigned long framesPerBuffer,
                          const PaStreamCallbackTimeInfo *timeInfo,
-                         PaStreamCallbackFlags statusFlags, void *userData)
-{
+                         PaStreamCallbackFlags statusFlags, void *userData) {
   return static_cast<PortAudioDaq *>(userData)->memberPaCallback(
       inputBuffer, outputBuffer, framesPerBuffer, timeInfo, statusFlags);
 }
 
 PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
                            const DaqConfiguration &config)
-    : Daq(devinfo_gen, config)
-{
-
+    : Daq(devinfo_gen, config) {
   DEBUGTRACE_ENTER;
+  bool shouldPaTerminate = false;
+  try {
     PaError err = Pa_Initialize();
     /// PortAudio says that Pa_Terminate() should not be called whenever there
     /// 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
-  // Pa_Terminate in the destructor.
-  _shouldPaTerminate = true;
+    // OK, Pa_Initialize successfully finished, it means we have to clean up
+    // with Pa_Terminate in the destructor.
+    shouldPaTerminate = true;
 
     // 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
     int devindex = -1;
-  for (int i = 0; i < Pa_GetDeviceCount(); i++)
-  {
+    for (int i = 0; i < Pa_GetDeviceCount(); i++) {
       // DEBUGTRACE_PRINT(i);
       bool ok = true;
       const PaDeviceInfo *info = Pa_GetDeviceInfo(i);
-    if (!info)
-    {
+      if (!info) {
         throw rte("No device structure returned from PortAudio");
       }
       ok &= string(info->name) == devinfo_gen.device_name;
@@ -267,13 +258,11 @@ PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
       ok &= info->maxOutputChannels == devinfo_gen._paDevInfo.maxOutputChannels;
       ok &= info->defaultSampleRate == devinfo_gen._paDevInfo.defaultSampleRate;
 
-    if (ok)
-    {
+      if (ok) {
         devindex = i;
       }
     }
-  if (devindex < 0)
-  {
+    if (devindex < 0) {
       throw rte(string("Device not found: ") + string(devinfo_gen.device_name));
     }
 
@@ -281,8 +270,7 @@ PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
     const Dtype dtype = dataType();
     // Sample format is bit flag
     PaSampleFormat format = paNonInterleaved;
-  switch (dtype)
-  {
+    switch (dtype) {
       case Dtype::dtype_fl32:
         DEBUGTRACE_PRINT("Datatype float32");
         format |= paFloat32;
@@ -311,19 +299,17 @@ PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
     std::unique_ptr<PaStreamParameters> instreamParams;
     std::unique_ptr<PaStreamParameters> outstreamParams;
 
-  if (neninchannels() > 0)
-  {
-    instreamParams = std::make_unique<PaStreamParameters>(
-        PaStreamParameters({.device = devindex,
+    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,
+    if (nenoutchannels() > 0) {
+      outstreamParams = std::make_unique<PaStreamParameters>(PaStreamParameters(
+          {.device = devindex,
            .channelCount = (int)getHighestEnabledOutChannel() + 1,
            .sampleFormat = format,
            .suggestedLatency = framesPerBlock() / samplerate(),
@@ -343,28 +329,35 @@ PortAudioDaq::PortAudioDaq(const OurPaDeviceInfo &devinfo_gen,
                         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;
+  }
 }
 
-void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback)
-{
+void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback) {
   DEBUGTRACE_ENTER;
   assert(_stream);
-  if (Pa_IsStreamActive(_stream))
-  {
+
+  if (Pa_IsStreamActive(_stream)) {
     throw rte("Stream is already running");
   }
 
   // Logical XOR
-  if (inCallback && outCallback)
-  {
-    throw rte("Either input or output stream possible for RtAudio. "
+  if (inCallback && outCallback) {
+    throw rte(
+        "Either input or output stream possible for PortAudio. "
         "Stream duplex mode not provided.");
   }
 
-  if (neninchannels() > 0)
-  {
-    if (!inCallback)
-    {
+  if (neninchannels() > 0) {
+    if (!inCallback) {
       throw rte(
 
           "Input callback given, but stream does not provide input data");
@@ -372,10 +365,8 @@ void PortAudioDaq::start(InDaqCallback inCallback, OutDaqCallback outCallback)
 
     _incallback = inCallback;
   }
-  if (nenoutchannels() > 0)
-  {
-    if (!outCallback)
-    {
+  if (nenoutchannels() > 0) {
+    if (!outCallback) {
       throw rte(
           "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);
   throwIfError(err);
 }
-void PortAudioDaq::stop()
-{
+void PortAudioDaq::stop() {
   DEBUGTRACE_ENTER;
   assert(_stream);
-  if (Pa_IsStreamStopped(_stream))
-  {
+  if (Pa_IsStreamStopped(_stream) > 1) {
     throw rte("Stream is already stopped");
   }
   PaError err = Pa_StopStream(_stream);
   throwIfError(err);
 }
-Daq::StreamStatus PortAudioDaq::getStreamStatus() const
-{
+Daq::StreamStatus PortAudioDaq::getStreamStatus() const {
+  DEBUGTRACE_ENTER;
+  // Stores an error type and whether the
   Daq::StreamStatus status;
-  // Copy over atomic flag.
-  status.errorType = _streamError;
-  // Check if stream is still running.
-  if (_stream)
-  {
-    if (Pa_IsStreamActive(_stream))
-    {
+  using StreamError = Daq::StreamStatus::StreamError;
+  Daq::StreamStatus::StreamError errortype = _streamError.load();
+
+  PaError err = Pa_IsStreamStopped(_stream);
+  if (err > 1) {
+    // Stream is stopped due to an error in the callback. The exact error type
+    // is filled in in the if-statement above
+    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;
 }
 
-PortAudioDaq::~PortAudioDaq()
-{
+PortAudioDaq::~PortAudioDaq() {
   PaError err;
-  if (_stream)
-  {
-    if (Pa_IsStreamActive(_stream))
-    {
+  assert(_stream);
+  if (Pa_IsStreamActive(_stream)) {
+    // Stop the stream first
     stop();
   }
 
   err = Pa_CloseStream(_stream);
   _stream = nullptr;
-    if (err != paNoError)
-    {
+  if (err != paNoError) {
     cerr << "Error closing PortAudio stream. Do not know what to do." << endl;
   }
-    assert(_shouldPaTerminate);
-  }
 
-  if (_shouldPaTerminate)
-  {
   err = Pa_Terminate();
-    if (err != paNoError)
-    {
+  if (err != paNoError) {
     cerr << "Error terminating PortAudio. Do not know what to do." << endl;
   }
 }
-}
+
 int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
                                    unsigned long framesPerBuffer,
                                    const PaStreamCallbackTimeInfo *timeInfo,
-                                   PaStreamCallbackFlags statusFlags)
-{
-
-  DEBUGTRACE_ENTER;
+                                   PaStreamCallbackFlags statusFlags) {
+  // DEBUGTRACE_ENTER;
   typedef Daq::StreamStatus::StreamError se;
-  if (statusFlags & paPrimingOutput)
-  {
+  if (statusFlags & paPrimingOutput) {
     // Initial output buffers generated. So nothing with input yet
     return paContinue;
   }
-  if ((statusFlags & paInputUnderflow) || (statusFlags & paInputOverflow))
-  {
+  if ((statusFlags & paInputUnderflow) || (statusFlags & paInputOverflow)) {
     _streamError = se::inputXRun;
     return paAbort;
   }
-  if ((statusFlags & paOutputUnderflow) || (statusFlags & paOutputOverflow))
-  {
+  if ((statusFlags & paOutputUnderflow) || (statusFlags & paOutputOverflow)) {
     _streamError = se::outputXRun;
     return paAbort;
   }
-  if (framesPerBuffer != framesPerBlock())
-  {
+  if (framesPerBuffer != framesPerBlock()) {
     cerr << "Logic error: expected a block size of: " << framesPerBlock()
          << endl;
     _streamError = se::logicError;
@@ -476,8 +475,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
   const auto &dtype_descr = dtypeDescr();
   const auto dtype = dataType();
   const us sw = dtype_descr.sw;
-  if (inputBuffer)
-  {
+  if (inputBuffer) {
     assert(_incallback);
     std::vector<byte_t *> ptrs;
     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
     /// noninterleaved, as specified in PortAudioDaq constructor.
-    for (us ch = ch_min; ch <= ch_max; ch++)
-    {
-      if (inchannel_config.at(ch).enabled)
-      {
+    for (us ch = ch_min; ch <= ch_max; ch++) {
+      if (inchannel_config.at(ch).enabled) {
         byte_t *ch_ptr =
             reinterpret_cast<byte_t **>(const_cast<void *>(inputBuffer))[ch];
         ptrs.push_back(ch_ptr);
@@ -504,8 +500,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
     _incallback(d);
   }
 
-  if (outputBuffer)
-  {
+  if (outputBuffer) {
     assert(_outcallback);
     std::vector<byte_t *> ptrs;
     ptrs.reserve(nenoutchannels);
@@ -517,10 +512,8 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
     assert(ch_min < noutchannels);
     assert(ch_max < noutchannels);
     /// Only pass on the pointers of the channels we want
-    for (us ch = ch_min; ch <= ch_max; ch++)
-    {
-      if (outchannel_config.at(ch).enabled)
-      {
+    for (us ch = ch_min; ch <= ch_max; ch++) {
+      if (outchannel_config.at(ch).enabled) {
         byte_t *ch_ptr = reinterpret_cast<byte_t **>(outputBuffer)[ch];
         ptrs.push_back(ch_ptr);
       }
@@ -530,8 +523,7 @@ int PortAudioDaq::memberPaCallback(const void *inputBuffer, void *outputBuffer,
     _outcallback(d);
     // Copy over the buffer
     us j = 0;
-    for (auto ptr : ptrs)
-    {
+    for (auto ptr : ptrs) {
       d.copyToRaw(j, ptr);
       j++;
     }