No QtAudio device issue solved

Closes issue #2308.

doc/how_to_build_linux.md

@@ -17,7 +17,7 @@ Building OpenToonz from source requires the following dependencies:
 ### Installing Dependencies on Debian / Ubuntu
 
 ```
-$ sudo apt-get install build-essential git cmake pkg-config libboost-all-dev qt5-default qtbase5-dev libqt5svg5-dev qtscript5-dev qttools5-dev qttools5-dev-tools libqt5opengl5-dev qtmultimedia5-dev libsuperlu-dev liblz4-dev libusb-1.0-0-dev liblzo2-dev libpng-dev libjpeg-dev libglew-dev freeglut3-dev libfreetype6-dev libjson-c-dev qtwayland5
+$ sudo apt-get install build-essential git cmake pkg-config libboost-all-dev qt5-default qtbase5-dev libqt5svg5-dev qtscript5-dev qttools5-dev qttools5-dev-tools libqt5opengl5-dev qtmultimedia5-dev libsuperlu-dev liblz4-dev libusb-1.0-0-dev liblzo2-dev libpng-dev libjpeg-dev libglew-dev freeglut3-dev libfreetype6-dev libjson-c-dev qtwayland5 libqt5multimedia5-plugins
 ```
 
 For newest versions of OS you may install libmypaint from repository and don't need to build it from source:
@@ -33,7 +33,7 @@ Notes:
 (it may include some useless packages)
 
 ```
-$ sudo dnf install gcc gcc-c++ automake git cmake boost boost-devel SuperLU SuperLU-devel lz4-devel lzma libusb-devel lzo-devel libjpeg-turbo-devel libGLEW glew-devel freeglut-devel freeglut freetype-devel libpng-devel qt5-qtbase-devel qt5-qtsvg qt5-qtsvg-devel qt5-qtscript qt5-qtscript-devel qt5-qttools qt5-qttools-devel qt5-qtmultimedia-devel blas blas-devel json-c-devel libtool intltool make
+$ sudo dnf install gcc gcc-c++ automake git cmake boost boost-devel SuperLU SuperLU-devel lz4-devel lzma libusb-devel lzo-devel libjpeg-turbo-devel libGLEW glew-devel freeglut-devel freeglut freetype-devel libpng-devel qt5-qtbase-devel qt5-qtsvg qt5-qtsvg-devel qt5-qtscript qt5-qtscript-devel qt5-qttools qt5-qttools-devel qt5-qtmultimedia-devel blas blas-devel json-c-devel libtool intltool make qt5-qtmultimedia
 ```
 
 For newest versions of OS you may install libmypaint from repository and don't need to build it from source:
@@ -60,7 +60,7 @@ Notes:
 ### Installing Dependencies on openSUSE
 
 ```
-$ zypper in boost-devel cmake freeglut-devel freetype2-devel gcc-c++ glew-devel libQt5OpenGL-devel libjpeg-devel liblz4-devel libpng16-compat-devel libqt5-linguist-devel libqt5-qtbase-devel libqt5-qtmultimedia-devel libqt5-qtscript-devel libqt5-qtsvg-devel libtiff-devel libusb-devel lzo-devel openblas-devel pkgconfig sed superlu-devel zlib-devel json-c-devel
+$ zypper in boost-devel cmake freeglut-devel freetype2-devel gcc-c++ glew-devel libQt5OpenGL-devel libjpeg-devel liblz4-devel libpng16-compat-devel libqt5-linguist-devel libqt5-qtbase-devel libqt5-qtmultimedia-devel libqt5-qtscript-devel libqt5-qtsvg-devel libtiff-devel libusb-devel lzo-devel openblas-devel pkgconfig sed superlu-devel zlib-devel json-c-devel libqt5-qtmultimedia
 ```
 
 For newest versions of OS you may install libmypaint from repository and don't need to build it from source:

toonz/sources/include/tsound.h

@@ -248,6 +248,7 @@ Range in seconds
 class TSoundDeviceException final : public TException {
 public:
   enum Type {
+    NoDevice,           // no device found
     FailedInit,  // fallimento del costruttore
     UnableOpenDevice,
     UnableCloseDevice,

toonz/sources/toonz/viewerpane.cpp

@@ -808,7 +808,15 @@ bool SceneViewerPanel::hasSoundtrack() {
   TXsheetHandle *xsheetHandle    = TApp::instance()->getCurrentXsheet();
   TXsheet::SoundProperties *prop = new TXsheet::SoundProperties();
   if (!m_sceneViewer->isPreviewEnabled()) prop->m_isPreview = true;
-  m_sound = xsheetHandle->getXsheet()->makeSound(prop);
+  try {
+    m_sound = xsheetHandle->getXsheet()->makeSound(prop);
+  } catch (TSoundDeviceException &e) {
+       if (e.getType() == TSoundDeviceException::NoDevice) {
+	 std::cout << ::to_string(e.getMessage()) << std::endl;
+         } else {
+           throw TSoundDeviceException(e.getType(), e.getMessage());
+       }
+  }
   if (m_sound == NULL) {
     m_hasSoundtrack = false;
     return false;
@@ -847,4 +855,4 @@ void SceneViewerPanel::save(QSettings &settings) const {
 void SceneViewerPanel::load(QSettings &settings) {
   m_visiblePartsFlag = settings.value("visibleParts", CVPARTS_ALL).toUInt();
   updateShowHide();
-}
+}

toonz/sources/toonzlib/txsheet.cpp

@@ -1475,20 +1475,28 @@ TSoundTrack *TXsheet::makeSound(SoundProperties *properties) {
 //-----------------------------------------------------------------------------
 
 void TXsheet::scrub(int frame, bool isPreview) {
-  double fps =
+  try {
+    double fps =
       getScene()->getProperties()->getOutputProperties()->getFrameRate();
 
-  TXsheet::SoundProperties *prop = new TXsheet::SoundProperties();
+    TXsheet::SoundProperties *prop = new TXsheet::SoundProperties();
-  prop->m_isPreview              = isPreview;
+    prop->m_isPreview              = isPreview;
 
-  TSoundTrack *st = makeSound(prop);  // Absorbs prop's ownership
+    TSoundTrack *st = makeSound(prop);  // Absorbs prop's ownership
-  if (!st) return;
+    if (!st) return;
 
-  double samplePerFrame = st->getSampleRate() / fps;
+    double samplePerFrame = st->getSampleRate() / fps;
 
-  double s0 = frame * samplePerFrame, s1 = s0 + samplePerFrame;
+    double s0 = frame * samplePerFrame, s1 = s0 + samplePerFrame;
 
-  play(st, s0, s1, false);
+    play(st, s0, s1, false);
+  } catch (TSoundDeviceException &e) {
+    if (e.getType() == TSoundDeviceException::NoDevice) {
+      std::cout << ::to_string(e.getMessage()) << std::endl;
+    } else {
+      throw TSoundDeviceException(e.getType(), e.getMessage());
+    }
+  }
 }
 
 //-----------------------------------------------------------------------------
@@ -1766,4 +1774,4 @@ void TXsheet::autoInputCellNumbers(int increment, int interval, int step,
       row++;
     }
   }
-}
+}

toonz/sources/toonzlib/txshsoundcolumn.cpp

@@ -845,17 +845,25 @@ void TXshSoundColumn::play(ColumnLevel *columnLevel, int currentFrame) {
 //-----------------------------------------------------------------------------
 
 void TXshSoundColumn::play(int currentFrame) {
-  TSoundTrackP soundTrack = getOverallSoundTrack(currentFrame);
+  try {
+    TSoundTrackP soundTrack = getOverallSoundTrack(currentFrame);
 
-  if (!soundTrack) return;
+    if (!soundTrack) return;
 
-  int spf        = m_levels.at(0)->getSoundLevel()->getSamplePerFrame();
+    int spf        = m_levels.at(0)->getSoundLevel()->getSamplePerFrame();
-  int startFrame = (currentFrame - getFirstRow());
+    int startFrame = (currentFrame - getFirstRow());
 
-  int s0 = startFrame * spf;
+    int s0 = startFrame * spf;
-  int s1 = getMaxFrame() * spf;
+    int s1 = getMaxFrame() * spf;
 
-  play(soundTrack, s0, s1, false);
+    play(soundTrack, s0, s1, false);
+  } catch (TSoundDeviceException &e) {
+    if (e.getType() == TSoundDeviceException::NoDevice) {
+      std::cout << ::to_string(e.getMessage()) << std::endl;
+    } else {
+      throw TSoundDeviceException(e.getType(), e.getMessage());
+    }
+  }
 }
 
 //-----------------------------------------------------------------------------
@@ -943,10 +951,17 @@ void TXshSoundColumn::onTimerOut() {
 
 void TXshSoundColumn::scrub(int fromFrame, int toFrame) {
   if (!isCamstandVisible()) return;
-  TSoundTrackP soundTrack = getOverallSoundTrack(fromFrame, toFrame + 1);
+  try {
-  if (!soundTrack) return;
+    TSoundTrackP soundTrack = getOverallSoundTrack(fromFrame, toFrame + 1);
-
+    if (!soundTrack) return;
-  play(soundTrack, 0, soundTrack->getSampleCount(), false);
+    play(soundTrack, 0, soundTrack->getSampleCount(), false);
+  } catch (TSoundDeviceException &e) {
+    if (e.getType() == TSoundDeviceException::NoDevice) {
+      std::cout << ::to_string(e.getMessage()) << std::endl;
+    } else {
+      throw TSoundDeviceException(e.getType(), e.getMessage());
+    }
+  }
 }
 
 //-----------------------------------------------------------------------------
@@ -1006,6 +1021,8 @@ TSoundTrackP TXshSoundColumn::getOverallSoundTrack(int fromFrame, int toFrame,
   if (format.m_sampleRate >= 44100) format.m_sampleRate = 22050;
 #else
   QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
+  if (info.deviceName().length() == 0) throw TSoundDeviceException(TSoundDeviceException::NoDevice,
+								  "No device found, check QAudio backends");
   QList<int> ssrs = info.supportedSampleRates();
   if (!ssrs.contains(format.m_sampleRate)) format.m_sampleRate = 44100;
   QAudioFormat qFormat;