M src/platform/qt/AudioProcessor.cpp → src/platform/qt/AudioProcessor.cpp

@@ -58,10 +58,14 @@ }
 }
 
 void AudioProcessor::setBufferSamples(int samples) {
-	QAudioFormat format = m_audioOutput->format();
-	m_audioOutput->setBufferSize(samples * format.channelCount() * format.sampleSize() / 8);
+	if (m_audioOutput) {
+		QAudioFormat format = m_audioOutput->format();
+		m_audioOutput->setBufferSize(samples * format.channelCount() * format.sampleSize() / 8);
+	}
 }
 
 void AudioProcessor::inputParametersChanged() {
-	m_device->setFormat(m_audioOutput->format());
+	if (m_device) {
+		m_device->setFormat(m_audioOutput->format());
+	}
 }

M src/platform/qt/GameController.cpp → src/platform/qt/GameController.cpp

@@ -243,17 +243,26 @@ updateKeys();
 }
 
 void GameController::setAudioBufferSamples(int samples) {
-	GBAThreadInterrupt(&m_threadContext);
-	m_threadContext.audioBuffers = samples;
-	GBAAudioResizeBuffer(&m_threadContext.gba->audio, samples);
-	GBAThreadContinue(&m_threadContext);
+	if (m_gameOpen) {
+		GBAThreadInterrupt(&m_threadContext);
+		m_threadContext.audioBuffers = samples;
+		GBAAudioResizeBuffer(&m_threadContext.gba->audio, samples);
+		GBAThreadContinue(&m_threadContext);
+	} else {
+		m_threadContext.audioBuffers = samples;
+
+	}
 	QMetaObject::invokeMethod(m_audioProcessor, "setBufferSamples", Q_ARG(int, samples));
 }
 
 void GameController::setFPSTarget(float fps) {
-	GBAThreadInterrupt(&m_threadContext);
-	m_threadContext.fpsTarget = fps;
-	GBAThreadContinue(&m_threadContext);
+	if (m_gameOpen) {
+		GBAThreadInterrupt(&m_threadContext);
+		m_threadContext.fpsTarget = fps;
+		GBAThreadContinue(&m_threadContext);
+	} else {
+		m_threadContext.fpsTarget = fps;
+	}
 	QMetaObject::invokeMethod(m_audioProcessor, "inputParametersChanged");
 }
 

M src/platform/qt/Window.cpp → src/platform/qt/Window.cpp

@@ -118,6 +118,14 @@
 	if (opts->bios) {
 		m_controller->loadBIOS(opts->bios);
 	}
+
+	if (opts->fpsTarget) {
+		emit fpsTargetChanged(opts->fpsTarget);
+	}
+
+	if (opts->audioBuffers) {
+		emit audioBufferSamplesChanged(opts->audioBuffers);
+	}
 }
 
 void Window::selectROM() {