Files
oak-editor/dialogs/exportdialog.cpp
T

727 lines
21 KiB
C++

#include "exportdialog.h"
#include <QOpenGLWidget>
#include <QFileDialog>
#include <QThread>
#include <QMessageBox>
#include <QOpenGLContext>
#include <QtMath>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QGroupBox>
#include <QComboBox>
#include <QSpinBox>
#include <QPushButton>
#include <QProgressBar>
#include "debug.h"
#include "panels/panels.h"
#include "panels/viewer.h"
#include "panels/timeline.h"
#include "ui/viewerwidget.h"
#include "project/sequence.h"
#include "io/exportthread.h"
#include "playback/playback.h"
#include "mainwindow.h"
extern "C" {
#include <libavformat/avformat.h>
}
enum ExportFormats {
FORMAT_3GPP,
FORMAT_AIFF,
FORMAT_APNG,
FORMAT_AVI,
FORMAT_DNXHD,
FORMAT_AC3,
FORMAT_FLV,
FORMAT_GIF,
FORMAT_IMG,
FORMAT_MP2,
FORMAT_MP3,
FORMAT_MPEG1,
FORMAT_MPEG2,
FORMAT_MPEG4,
FORMAT_MPEGTS,
FORMAT_MKV,
FORMAT_OGG,
FORMAT_MOV,
FORMAT_WAV,
FORMAT_WEBM,
FORMAT_WMV,
FORMAT_SIZE
};
ExportDialog::ExportDialog(QWidget *parent) :
QDialog(parent)
{
setWindowTitle(tr("Export \"%1\"").arg(sequence->name));
setup_ui();
rangeCombobox->setCurrentIndex(0);
if (sequence->using_workarea) {
rangeCombobox->setEnabled(true);
if (sequence->enable_workarea) rangeCombobox->setCurrentIndex(1);
}
format_strings.resize(FORMAT_SIZE);
format_strings[FORMAT_3GPP] = "3GPP";
format_strings[FORMAT_AIFF] = "AIFF";
format_strings[FORMAT_APNG] = "Animated PNG";
format_strings[FORMAT_AVI] = "AVI";
format_strings[FORMAT_DNXHD] = "DNxHD";
format_strings[FORMAT_AC3] = "Dolby Digital (AC3)";
format_strings[FORMAT_FLV] = "FLV";
format_strings[FORMAT_GIF] = "GIF";
format_strings[FORMAT_IMG] = "Image Sequence";
format_strings[FORMAT_MP2] = "MP2 Audio";
format_strings[FORMAT_MP3] = "MP3 Audio";
format_strings[FORMAT_MPEG1] = "MPEG-1 Video";
format_strings[FORMAT_MPEG2] = "MPEG-2 Video";
format_strings[FORMAT_MPEG4] = "MPEG-4 Video";
format_strings[FORMAT_MPEGTS] = "MPEG-TS";
format_strings[FORMAT_MKV] = "Matroska MKV";
format_strings[FORMAT_OGG] = "Ogg";
format_strings[FORMAT_MOV] = "QuickTime MOV";
format_strings[FORMAT_WAV] = "WAVE Audio";
format_strings[FORMAT_WEBM] = "WebM";
format_strings[FORMAT_WMV] = "Windows Media";
for (int i=0;i<FORMAT_SIZE;i++) {
formatCombobox->addItem(format_strings[i]);
}
formatCombobox->setCurrentIndex(FORMAT_MPEG4);
widthSpinbox->setValue(sequence->width);
heightSpinbox->setValue(sequence->height);
samplingRateSpinbox->setValue(sequence->audio_frequency);
framerateSpinbox->setValue(sequence->frame_rate);
}
ExportDialog::~ExportDialog()
{}
void ExportDialog::format_changed(int index)
{
format_vcodecs.clear();
format_acodecs.clear();
vcodecCombobox->clear();
acodecCombobox->clear();
int default_vcodec = 0;
int default_acodec = 0;
switch (index) {
case FORMAT_3GPP:
format_vcodecs.append(AV_CODEC_ID_MPEG4);
format_vcodecs.append(AV_CODEC_ID_H264);
format_acodecs.append(AV_CODEC_ID_AAC);
default_vcodec = 1;
break;
case FORMAT_AIFF:
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
break;
case FORMAT_APNG:
format_vcodecs.append(AV_CODEC_ID_APNG);
break;
case FORMAT_AVI:
format_vcodecs.append(AV_CODEC_ID_H264);
format_vcodecs.append(AV_CODEC_ID_MPEG4);
format_vcodecs.append(AV_CODEC_ID_MJPEG);
format_vcodecs.append(AV_CODEC_ID_MSVIDEO1);
format_vcodecs.append(AV_CODEC_ID_RAWVIDEO);
format_vcodecs.append(AV_CODEC_ID_HUFFYUV);
format_vcodecs.append(AV_CODEC_ID_DVVIDEO);
format_acodecs.append(AV_CODEC_ID_AAC);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_FLAC);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
default_vcodec = 3;
default_acodec = 5;
break;
case FORMAT_DNXHD:
format_vcodecs.append(AV_CODEC_ID_DNXHD);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
break;
case FORMAT_AC3:
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_EAC3);
break;
case FORMAT_FLV:
format_vcodecs.append(AV_CODEC_ID_FLV1);
format_acodecs.append(AV_CODEC_ID_MP3);
break;
case FORMAT_GIF:
format_vcodecs.append(AV_CODEC_ID_GIF);
break;
case FORMAT_IMG:
format_vcodecs.append(AV_CODEC_ID_BMP);
format_vcodecs.append(AV_CODEC_ID_MJPEG);
format_vcodecs.append(AV_CODEC_ID_JPEG2000);
format_vcodecs.append(AV_CODEC_ID_PSD);
format_vcodecs.append(AV_CODEC_ID_PNG);
format_vcodecs.append(AV_CODEC_ID_TIFF);
default_vcodec = 4;
break;
case FORMAT_MP2:
format_acodecs.append(AV_CODEC_ID_MP2);
break;
case FORMAT_MP3:
format_acodecs.append(AV_CODEC_ID_MP3);
break;
case FORMAT_MPEG1:
format_vcodecs.append(AV_CODEC_ID_MPEG1VIDEO);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
default_acodec = 1;
break;
case FORMAT_MPEG2:
format_vcodecs.append(AV_CODEC_ID_MPEG2VIDEO);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
default_acodec = 1;
break;
case FORMAT_MPEG4:
format_vcodecs.append(AV_CODEC_ID_MPEG4);
format_vcodecs.append(AV_CODEC_ID_H264);
format_acodecs.append(AV_CODEC_ID_AAC);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
default_vcodec = 1;
break;
case FORMAT_MPEGTS:
format_vcodecs.append(AV_CODEC_ID_MPEG2VIDEO);
format_acodecs.append(AV_CODEC_ID_AAC);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
default_acodec = 2;
break;
case FORMAT_MKV:
format_vcodecs.append(AV_CODEC_ID_MPEG4);
format_vcodecs.append(AV_CODEC_ID_H264);
format_acodecs.append(AV_CODEC_ID_AAC);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_EAC3);
format_acodecs.append(AV_CODEC_ID_FLAC);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
format_acodecs.append(AV_CODEC_ID_OPUS);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
format_acodecs.append(AV_CODEC_ID_VORBIS);
format_acodecs.append(AV_CODEC_ID_WAVPACK);
format_acodecs.append(AV_CODEC_ID_WMAV1);
format_acodecs.append(AV_CODEC_ID_WMAV2);
default_vcodec = 1;
break;
case FORMAT_OGG:
format_vcodecs.append(AV_CODEC_ID_THEORA);
format_acodecs.append(AV_CODEC_ID_OPUS);
format_acodecs.append(AV_CODEC_ID_VORBIS);
default_acodec = 1;
break;
case FORMAT_MOV:
format_vcodecs.append(AV_CODEC_ID_QTRLE);
format_vcodecs.append(AV_CODEC_ID_MPEG4);
format_vcodecs.append(AV_CODEC_ID_H264);
format_vcodecs.append(AV_CODEC_ID_MJPEG);
format_vcodecs.append(AV_CODEC_ID_PRORES);
format_acodecs.append(AV_CODEC_ID_AAC);
format_acodecs.append(AV_CODEC_ID_AC3);
format_acodecs.append(AV_CODEC_ID_MP2);
format_acodecs.append(AV_CODEC_ID_MP3);
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
default_vcodec = 2;
break;
case FORMAT_WAV:
format_acodecs.append(AV_CODEC_ID_PCM_S16LE);
break;
case FORMAT_WEBM:
format_vcodecs.append(AV_CODEC_ID_VP8);
format_vcodecs.append(AV_CODEC_ID_VP9);
format_acodecs.append(AV_CODEC_ID_OPUS);
format_acodecs.append(AV_CODEC_ID_VORBIS);
default_vcodec = 1;
break;
case FORMAT_WMV:
format_vcodecs.append(AV_CODEC_ID_WMV1);
format_vcodecs.append(AV_CODEC_ID_WMV2);
format_acodecs.append(AV_CODEC_ID_WMAV1);
format_acodecs.append(AV_CODEC_ID_WMAV2);
default_vcodec = 1;
default_acodec = 1;
break;
default:
qCritical() << "Invalid format selection - this is a bug, please inform the developers";
}
AVCodec* codec_info;
for (int i=0;i<format_vcodecs.size();i++) {
codec_info = avcodec_find_encoder((enum AVCodecID) format_vcodecs.at(i));
if (codec_info == nullptr) {
vcodecCombobox->addItem("nullptr");
} else {
vcodecCombobox->addItem(codec_info->long_name);
}
}
for (int i=0;i<format_acodecs.size();i++) {
codec_info = avcodec_find_encoder((enum AVCodecID) format_acodecs.at(i));
if (codec_info == nullptr) {
acodecCombobox->addItem("nullptr");
} else {
acodecCombobox->addItem(codec_info->long_name);
}
}
vcodecCombobox->setCurrentIndex(default_vcodec);
acodecCombobox->setCurrentIndex(default_acodec);
bool video_enabled = format_vcodecs.size() != 0;
bool audio_enabled = format_acodecs.size() != 0;
videoGroupbox->setChecked(video_enabled);
audioGroupbox->setChecked(audio_enabled);
videoGroupbox->setEnabled(video_enabled);
audioGroupbox->setEnabled(audio_enabled);
}
void ExportDialog::render_thread_finished() {
if (progressBar->value() < 100 && !cancelled) {
QMessageBox::critical(
this,
tr("Export Failed"),
tr("Export failed - %1").arg(export_error),
QMessageBox::Ok
);
}
prep_ui_for_render(false);
panel_sequence_viewer->viewer_widget->makeCurrent();
panel_sequence_viewer->viewer_widget->initializeGL();
update_ui(false);
if (progressBar->value() == 100) accept();
}
void ExportDialog::prep_ui_for_render(bool r) {
export_button->setEnabled(!r);
cancel_button->setEnabled(!r);
renderCancel->setEnabled(r);
}
void ExportDialog::export_action() {
if (widthSpinbox->value()%2 == 1 || heightSpinbox->value()%2 == 1) {
QMessageBox::critical(
this,
tr("Invalid dimensions"),
tr("Export width and height must both be even numbers/divisible by 2."),
QMessageBox::Ok
);
return;
}
QString ext;
switch (formatCombobox->currentIndex()) {
case FORMAT_3GPP:
ext = "3gp";
break;
case FORMAT_AIFF:
ext = "aiff";
break;
case FORMAT_APNG:
ext = "apng";
break;
case FORMAT_AVI:
ext = "avi";
break;
case FORMAT_DNXHD:
ext = "mxf";
break;
case FORMAT_AC3:
ext = "ac3";
break;
case FORMAT_FLV:
ext = "flv";
break;
case FORMAT_GIF:
ext = "gif";
break;
case FORMAT_IMG:
switch (format_vcodecs.at(vcodecCombobox->currentIndex())) {
case AV_CODEC_ID_BMP:
ext = "bmp";
break;
case AV_CODEC_ID_MJPEG:
ext = "jpg";
break;
case AV_CODEC_ID_JPEG2000:
ext = "jp2";
break;
case AV_CODEC_ID_PSD:
ext = "psd";
break;
case AV_CODEC_ID_PNG:
ext = "png";
break;
case AV_CODEC_ID_TIFF:
ext = "tif";
break;
default:
qCritical() << "Invalid codec selection for an image sequence";
QMessageBox::critical(
this,
tr("Invalid codec"),
tr("Couldn't determine output parameters for the selected codec. This is a bug, please contact the developers."),
QMessageBox::Ok
);
return;
}
break;
case FORMAT_MP3:
ext = "mp3";
break;
case FORMAT_MPEG1:
if (videoGroupbox->isChecked() && !audioGroupbox->isChecked()) {
ext = "m1v";
} else if (!videoGroupbox->isChecked() && audioGroupbox->isChecked()) {
ext = "m1a";
} else {
ext = "mpg";
}
break;
case FORMAT_MPEG2:
if (videoGroupbox->isChecked() && !audioGroupbox->isChecked()) {
ext = "m2v";
} else if (!videoGroupbox->isChecked() && audioGroupbox->isChecked()) {
ext = "m2a";
} else {
ext = "mpg";
}
break;
case FORMAT_MPEG4:
if (videoGroupbox->isChecked() && !audioGroupbox->isChecked()) {
ext = "m4v";
} else if (!videoGroupbox->isChecked() && audioGroupbox->isChecked()) {
ext = "m4a";
} else {
ext = "mp4";
}
break;
case FORMAT_MPEGTS:
ext = "ts";
break;
case FORMAT_MKV:
if (!videoGroupbox->isChecked()) {
ext = "mka";
} else {
ext = "mkv";
}
break;
case FORMAT_OGG:
ext = "ogg";
break;
case FORMAT_MOV:
ext = "mov";
break;
case FORMAT_WAV:
ext = "wav";
break;
case FORMAT_WEBM:
ext = "webm";
break;
case FORMAT_WMV:
if (videoGroupbox->isChecked()) {
ext = "wmv";
} else {
ext = "wma";
}
break;
default:
qCritical() << "Invalid format - this is a bug, please inform the developers";
QMessageBox::critical(
this,
tr("Invalid format"),
tr("Couldn't determine output format. This is a bug, please contact the developers."),
QMessageBox::Ok
);
return;
}
QString filename = QFileDialog::getSaveFileName(
this,
tr("Export Media"),
"",
format_strings[formatCombobox->currentIndex()] + " (*." + ext + ")"
);
if (!filename.isEmpty()) {
if (!filename.endsWith("." + ext, Qt::CaseInsensitive)) {
filename += "." + ext;
}
if (formatCombobox->currentIndex() == FORMAT_IMG) {
int ext_location = filename.lastIndexOf('.');
if (ext_location > filename.lastIndexOf('/')) {
filename.insert(ext_location, 'd');
filename.insert(ext_location, '5');
filename.insert(ext_location, '0');
filename.insert(ext_location, '%');
}
}
et = new ExportThread();
connect(et, SIGNAL(finished()), et, SLOT(deleteLater()));
connect(et, SIGNAL(finished()), this, SLOT(render_thread_finished()));
connect(et, SIGNAL(progress_changed(int, qint64)), this, SLOT(update_progress_bar(int, qint64)));
closeActiveClips(sequence);
mainWindow->set_rendering_state(true);
mainWindow->autorecover_interval();
prep_ui_for_render(true);
et->filename = filename;
et->video_enabled = videoGroupbox->isChecked();
if (et->video_enabled) {
et->video_codec = format_vcodecs.at(vcodecCombobox->currentIndex());
et->video_width = widthSpinbox->value();
et->video_height = heightSpinbox->value();
et->video_frame_rate = framerateSpinbox->value();
et->video_compression_type = compressionTypeCombobox->currentData().toInt();
et->video_bitrate = videobitrateSpinbox->value();
}
et->audio_enabled = audioGroupbox->isChecked();
if (et->audio_enabled) {
et->audio_codec = format_acodecs.at(acodecCombobox->currentIndex());
et->audio_sampling_rate = samplingRateSpinbox->value();
et->audio_bitrate = audiobitrateSpinbox->value();
}
et->start_frame = 0;
et->end_frame = sequence->getEndFrame(); // entire sequence
if (rangeCombobox->currentIndex() == 1) {
et->start_frame = qMax(sequence->workarea_in, et->start_frame);
et->end_frame = qMin(sequence->workarea_out, et->end_frame);
}
et->ed = this;
cancelled = false;
et->start();
}
}
void ExportDialog::update_progress_bar(int value, qint64 remaining_ms) {
// convert ms to H:MM:SS
int seconds = qFloor(remaining_ms*0.001)%60;
int minutes = qFloor(remaining_ms/60000)%60;
int hours = qFloor(remaining_ms/3600000);
progressBar->setFormat("%p% (ETA: " + QString::number(hours) + ":" + QString::number(minutes).rightJustified(2, '0') + ":" + QString::number(seconds).rightJustified(2, '0') + ")");
progressBar->setValue(value);
}
void ExportDialog::cancel_render() {
et->continueEncode = false;
cancelled = true;
et->wake();
}
void ExportDialog::vcodec_changed(int index) {
compressionTypeCombobox->clear();
if ((format_vcodecs.size() > 0 && format_vcodecs.at(index) == AV_CODEC_ID_H264)) {
compressionTypeCombobox->setEnabled(true);
compressionTypeCombobox->addItem(tr("Quality-based (Constant Rate Factor)"), COMPRESSION_TYPE_CFR);
// compressionTypeCombobox->addItem("File size-based (Two-Pass)", COMPRESSION_TYPE_TARGETSIZE);
// compressionTypeCombobox->addItem("Average bitrate (Two-Pass)", COMPRESSION_TYPE_TARGETBR);
} else {
compressionTypeCombobox->addItem(tr("Constant Bitrate"), COMPRESSION_TYPE_CBR);
compressionTypeCombobox->setCurrentIndex(0);
compressionTypeCombobox->setEnabled(false);
}
}
void ExportDialog::comp_type_changed(int) {
videobitrateSpinbox->setToolTip("");
videobitrateSpinbox->setMinimum(0);
videobitrateSpinbox->setMaximum(99.99);
switch (compressionTypeCombobox->currentData().toInt()) {
case COMPRESSION_TYPE_CBR:
case COMPRESSION_TYPE_TARGETBR:
videoBitrateLabel->setText(tr("Bitrate (Mbps):"));
videobitrateSpinbox->setValue(qMax(0.5, (double) qRound((0.01528 * sequence->height) - 4.5)));
break;
case COMPRESSION_TYPE_CFR:
videoBitrateLabel->setText(tr("Quality (CRF):"));
videobitrateSpinbox->setValue(36);
videobitrateSpinbox->setMaximum(51);
videobitrateSpinbox->setToolTip(tr("Quality Factor:\n\n0 = lossless\n17-18 = visually lossless (compressed, but unnoticeable)\n23 = high quality\n51 = lowest quality possible"));
break;
case COMPRESSION_TYPE_TARGETSIZE:
videoBitrateLabel->setText(tr("Target File Size (MB):"));
videobitrateSpinbox->setValue(100);
break;
}
}
void ExportDialog::setup_ui() {
QVBoxLayout* verticalLayout = new QVBoxLayout(this);
QHBoxLayout* format_layout = new QHBoxLayout();
format_layout->addWidget(new QLabel(tr("Format:")));
formatCombobox = new QComboBox(this);
format_layout->addWidget(formatCombobox);
verticalLayout->addLayout(format_layout);
QHBoxLayout* range_layout = new QHBoxLayout();
range_layout->addWidget(new QLabel(tr("Range:")));
rangeCombobox = new QComboBox(this);
rangeCombobox->addItem(tr("Entire Sequence"));
rangeCombobox->addItem(tr("In to Out"));
range_layout->addWidget(rangeCombobox);
verticalLayout->addLayout(range_layout);
videoGroupbox = new QGroupBox(this);
videoGroupbox->setTitle(tr("Video"));
videoGroupbox->setFlat(false);
videoGroupbox->setCheckable(true);
QGridLayout* videoGridLayout = new QGridLayout(videoGroupbox);
videoGridLayout->addWidget(new QLabel(tr("Codec:")), 0, 0, 1, 1);
vcodecCombobox = new QComboBox(videoGroupbox);
videoGridLayout->addWidget(vcodecCombobox, 0, 1, 1, 1);
videoGridLayout->addWidget(new QLabel(tr("Width:")), 1, 0, 1, 1);
widthSpinbox = new QSpinBox(videoGroupbox);
widthSpinbox->setMaximum(16777216);
videoGridLayout->addWidget(widthSpinbox, 1, 1, 1, 1);
videoGridLayout->addWidget(new QLabel(tr("Height:")), 2, 0, 1, 1);
heightSpinbox = new QSpinBox(videoGroupbox);
heightSpinbox->setMaximum(16777216);
videoGridLayout->addWidget(heightSpinbox, 2, 1, 1, 1);
videoGridLayout->addWidget(new QLabel(tr("Frame Rate:")), 3, 0, 1, 1);
framerateSpinbox = new QDoubleSpinBox(videoGroupbox);
framerateSpinbox->setMaximum(60);
framerateSpinbox->setValue(0);
videoGridLayout->addWidget(framerateSpinbox, 3, 1, 1, 1);
videoGridLayout->addWidget(new QLabel(tr("Compression Type:")), 4, 0, 1, 1);
compressionTypeCombobox = new QComboBox(videoGroupbox);
videoGridLayout->addWidget(compressionTypeCombobox, 4, 1, 1, 1);
videoBitrateLabel = new QLabel(videoGroupbox);
videoGridLayout->addWidget(videoBitrateLabel, 5, 0, 1, 1);
videobitrateSpinbox = new QDoubleSpinBox(videoGroupbox);
videobitrateSpinbox->setMaximum(100);
videobitrateSpinbox->setValue(2);
videoGridLayout->addWidget(videobitrateSpinbox, 5, 1, 1, 1);
verticalLayout->addWidget(videoGroupbox);
audioGroupbox = new QGroupBox(this);
audioGroupbox->setTitle("Audio");
audioGroupbox->setCheckable(true);
QGridLayout* audioGridLayout = new QGridLayout(audioGroupbox);
audioGridLayout->addWidget(new QLabel(tr("Codec:")), 0, 0, 1, 1);
acodecCombobox = new QComboBox(audioGroupbox);
audioGridLayout->addWidget(acodecCombobox, 0, 1, 1, 1);
audioGridLayout->addWidget(new QLabel(tr("Sampling Rate:")), 1, 0, 1, 1);
samplingRateSpinbox = new QSpinBox(audioGroupbox);
samplingRateSpinbox->setMaximum(96000);
samplingRateSpinbox->setValue(0);
audioGridLayout->addWidget(samplingRateSpinbox, 1, 1, 1, 1);
audioGridLayout->addWidget(new QLabel(tr("Bitrate (Kbps/CBR):")), 3, 0, 1, 1);
audiobitrateSpinbox = new QSpinBox(audioGroupbox);
audiobitrateSpinbox->setMaximum(320);
audiobitrateSpinbox->setValue(256);
audioGridLayout->addWidget(audiobitrateSpinbox, 3, 1, 1, 1);
verticalLayout->addWidget(audioGroupbox);
QHBoxLayout* progressLayout = new QHBoxLayout();
progressBar = new QProgressBar(this);
progressBar->setFormat("%p% (ETA: 0:00:00)");
progressBar->setEnabled(false);
progressBar->setValue(0);
progressLayout->addWidget(progressBar);
renderCancel = new QPushButton(this);
renderCancel->setText("x");
renderCancel->setEnabled(false);
renderCancel->setMaximumSize(QSize(20, 16777215));
connect(renderCancel, SIGNAL(clicked(bool)), this, SLOT(cancel_render()));
progressLayout->addWidget(renderCancel);
verticalLayout->addLayout(progressLayout);
QHBoxLayout* buttonLayout = new QHBoxLayout();
buttonLayout->addStretch();
export_button = new QPushButton(this);
export_button->setText("Export");
connect(export_button, SIGNAL(clicked(bool)), this, SLOT(export_action()));
buttonLayout->addWidget(export_button);
cancel_button = new QPushButton(this);
cancel_button->setText("Cancel");
connect(cancel_button, SIGNAL(clicked(bool)), this, SLOT(reject()));
buttonLayout->addWidget(cancel_button);
buttonLayout->addStretch();
verticalLayout->addLayout(buttonLayout);
connect(formatCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(format_changed(int)));
connect(compressionTypeCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(comp_type_changed(int)));
connect(vcodecCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(vcodec_changed(int)));
}