Fixed an issue where the audio device was accessed after it had been closed.

es-app/src/main.cpp

@@ -529,10 +529,8 @@ int main(int argc, char* argv[])
     }
 
     Window* window = Window::getInstance();
-
     ViewController::getInstance();
     CollectionSystemsManager::getInstance();
-
     SystemScreensaver screensaver;
     MediaViewer mediaViewer;
     GuiLaunchScreen guiLaunchScreen;

es-core/src/AudioManager.cpp

@@ -119,6 +119,8 @@ void AudioManager::deinit()
 
     SDL_CloseAudio();
     SDL_QuitSubSystem(SDL_INIT_AUDIO);
+
+    sAudioDevice = 0;
 }
 
 void AudioManager::mixAudio(void* /*unused*/, Uint8* stream, int len)

es-core/src/components/VideoFFmpegComponent.cpp

@@ -1412,6 +1412,7 @@ void VideoFFmpegComponent::stopVideo()
     std::queue<AudioFrame>().swap(mAudioFrameQueue);
 
     // Clear the audio buffer.
+    if (AudioManager::sAudioDevice != 0)
         AudioManager::getInstance().clearStream();
 
     if (mFormatContext) {