mirror of
https://github.com/isledecomp/SIEdit.git
synced 2024-12-02 11:57:35 -05:00
117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
#include "wavpanel.h"
|
|
|
|
#include <iostream>
|
|
#include <object.h>
|
|
#include <QGroupBox>
|
|
#include <QHBoxLayout>
|
|
|
|
WavPanel::WavPanel(QWidget *parent) :
|
|
Panel(parent),
|
|
audio_out_(nullptr)
|
|
{
|
|
int row = 0;
|
|
|
|
auto wav_group = new QGroupBox(tr("Playback"));
|
|
layout()->addWidget(wav_group, row, 0, 1, 2);
|
|
|
|
auto wav_layout = new QHBoxLayout(wav_group);
|
|
|
|
playhead_slider_ = new QSlider(Qt::Horizontal);
|
|
playhead_slider_->setMinimum(0);
|
|
connect(playhead_slider_, &QSlider::valueChanged, this, &WavPanel::SliderMoved);
|
|
wav_layout->addWidget(playhead_slider_);
|
|
|
|
play_btn_ = new QPushButton(tr("Play"));
|
|
play_btn_->setCheckable(true);
|
|
connect(play_btn_, &QPushButton::clicked, this, &WavPanel::Play);
|
|
wav_layout->addWidget(play_btn_);
|
|
|
|
FinishLayout();
|
|
|
|
buffer_.setBuffer(&array_);
|
|
|
|
playback_timer_ = new QTimer(this);
|
|
playback_timer_->setInterval(100);
|
|
connect(playback_timer_, &QTimer::timeout, this, &WavPanel::TimerUpdate);
|
|
}
|
|
|
|
void WavPanel::OnOpeningData(void *data)
|
|
{
|
|
si::Object *o = static_cast<si::Object*>(data);
|
|
|
|
// Find fmt and data
|
|
header_ = *o->GetFileHeader().cast<si::WAVFmt>();
|
|
playhead_slider_->setMaximum(o->GetFileBodySize()/GetSampleSize());
|
|
}
|
|
|
|
void WavPanel::OnClosingData(void *data)
|
|
{
|
|
Play(false);
|
|
playhead_slider_->setValue(0);
|
|
}
|
|
|
|
int WavPanel::GetSampleSize() const
|
|
{
|
|
return (header_.BitsPerSample/8) * header_.Channels;
|
|
}
|
|
|
|
void WavPanel::Play(bool e)
|
|
{
|
|
if (audio_out_) {
|
|
audio_out_->stop();
|
|
delete audio_out_;
|
|
audio_out_ = nullptr;
|
|
}
|
|
buffer_.close();
|
|
array_.clear();
|
|
playback_timer_->stop();
|
|
|
|
if (e) {
|
|
si::Object *o = static_cast<si::Object*>(GetData());
|
|
si::bytearray pcm = o->GetFileBody();
|
|
array_ = QByteArray(pcm.data(), pcm.size());
|
|
buffer_.open(QBuffer::ReadOnly);
|
|
|
|
size_t start = 0;
|
|
|
|
if (playhead_slider_->value() < playhead_slider_->maximum()) {
|
|
start += playhead_slider_->value() * GetSampleSize();
|
|
}
|
|
|
|
buffer_.seek(start);
|
|
|
|
QAudioFormat audio_fmt;
|
|
audio_fmt.setSampleRate(header_.SampleRate);
|
|
audio_fmt.setChannelCount(header_.Channels);
|
|
audio_fmt.setSampleSize(header_.BitsPerSample);
|
|
audio_fmt.setByteOrder(QAudioFormat::LittleEndian);
|
|
audio_fmt.setCodec(QStringLiteral("audio/pcm"));
|
|
audio_fmt.setSampleType(QAudioFormat::SignedInt);
|
|
|
|
audio_out_ = new QAudioOutput(audio_fmt, this);
|
|
connect(audio_out_, &QAudioOutput::stateChanged, this, &WavPanel::OutputChanged);
|
|
audio_out_->start(&buffer_);
|
|
|
|
playback_timer_->start();
|
|
}
|
|
}
|
|
|
|
void WavPanel::TimerUpdate()
|
|
{
|
|
playhead_slider_->setValue(buffer_.pos() / GetSampleSize());
|
|
}
|
|
|
|
void WavPanel::OutputChanged(QAudio::State state)
|
|
{
|
|
if (state != QAudio::ActiveState) {
|
|
Play(false);
|
|
play_btn_->setChecked(false);
|
|
}
|
|
}
|
|
|
|
void WavPanel::SliderMoved(int i)
|
|
{
|
|
if (buffer_.isOpen()) {
|
|
buffer_.seek(i * GetSampleSize());
|
|
}
|
|
}
|