1/* Copyright (c) 2013-2014 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "AudioProcessorQt.h"
 7
 8#include "AudioDevice.h"
 9
10#include <QAudioOutput>
11
12extern "C" {
13#include "gba-thread.h"
14}
15
16using namespace QGBA;
17
18AudioProcessorQt::AudioProcessorQt(QObject* parent)
19	: AudioProcessor(parent)
20	, m_audioOutput(nullptr)
21	, m_device(nullptr)
22{
23}
24
25void AudioProcessorQt::setInput(GBAThread* input) {
26	AudioProcessor::setInput(input);
27	if (m_device) {
28		m_device->setInput(input);
29		if (m_audioOutput) {
30			m_device->setFormat(m_audioOutput->format());
31		}
32	}
33}
34
35void AudioProcessorQt::start() {
36	if (!m_device) {
37		m_device = new AudioDevice(this);
38	}
39
40	if (!m_audioOutput) {
41		QAudioFormat format;
42		format.setSampleRate(44100);
43		format.setChannelCount(2);
44		format.setSampleSize(16);
45		format.setCodec("audio/pcm");
46		format.setByteOrder(QAudioFormat::LittleEndian);
47		format.setSampleType(QAudioFormat::SignedInt);
48
49		m_audioOutput = new QAudioOutput(format, this);
50	}
51
52	m_device->setInput(input());
53	m_device->setFormat(m_audioOutput->format());
54	m_audioOutput->setBufferSize(input()->audioBuffers * 4);
55
56	m_audioOutput->start(m_device);
57}
58
59void AudioProcessorQt::pause() {
60	if (m_audioOutput) {
61		m_audioOutput->stop();
62	}
63}
64
65void AudioProcessorQt::setBufferSamples(int samples) {
66	AudioProcessor::setBufferSamples(samples);
67	if (m_audioOutput) {
68		m_audioOutput->stop();
69		m_audioOutput->setBufferSize(samples * 4);
70		m_audioOutput->start(m_device);
71	}
72}
73
74void AudioProcessorQt::inputParametersChanged() {
75	if (m_device) {
76		m_device->setFormat(m_audioOutput->format());
77	}
78}