completed audio recording implementation

app/dialog/export/export.cpp

@@ -211,6 +211,7 @@ ExportDialog::ExportDialog(ViewerOutput *viewer_node, QWidget *parent) :
   video_tab_->pixel_format_field()->SetPixelFormat(static_cast<VideoParams::Format>(Config::Current()[QStringLiteral("OnlinePixelFormat")].toInt()));
   video_tab_->interlaced_combobox()->SetInterlaceMode(vp.interlacing());
   audio_tab_->sample_rate_combobox()->SetSampleRate(ap.sample_rate());
+  audio_tab_->sample_format_combobox()->SetSampleFormat(ap.format());
   audio_tab_->channel_layout_combobox()->SetChannelLayout(ap.channel_layout());
 
   video_aspect_ratio_ = static_cast<double>(vp.width()) / static_cast<double>(vp.height());
@@ -515,7 +516,7 @@ ExportParams ExportDialog::GenerateParams() const
 
   AudioParams audio_render_params(audio_tab_->sample_rate_combobox()->currentData().toInt(),
                                   audio_tab_->channel_layout_combobox()->GetChannelLayout(),
-                                  AudioParams::kInternalFormat);
+                                  audio_tab_->sample_format_combobox()->GetSampleFormat());
 
   ExportParams params;
   params.set_encoder(Encoder::GetTypeFromFormat(format_combobox_->GetFormat()));
@@ -553,7 +554,7 @@ ExportParams ExportDialog::GenerateParams() const
   }
 
   if (audio_enabled_->isChecked()) {
-    ExportCodec::Codec audio_codec = static_cast<ExportCodec::Codec>(audio_tab_->codec_combobox()->currentData().toInt());
+    ExportCodec::Codec audio_codec = audio_tab_->GetCodec();
     params.EnableAudio(audio_render_params, audio_codec);
 
     params.set_audio_bit_rate(audio_tab_->bit_rate_slider()->GetValue() * 1000);

app/dialog/export/exportaudiotab.cpp

@@ -59,7 +59,9 @@ ExportAudioTab::ExportAudioTab(QWidget* parent) :
   row++;
 
   layout->addWidget(new QLabel(tr("Format:")), row, 0);
-  layout->addWidget(new QComboBox(), row, 1);
+
+  sample_format_combobox_ = new SampleFormatComboBox();
+  layout->addWidget(sample_format_combobox_, row, 1);
 
   row++;
 
@@ -68,7 +70,7 @@ ExportAudioTab::ExportAudioTab(QWidget* parent) :
   bit_rate_slider_ = new IntegerSlider();
   bit_rate_slider_->SetMinimum(32);
   bit_rate_slider_->SetMaximum(320);
-  bit_rate_slider_->SetValue(256);
+  bit_rate_slider_->SetValue(320);
   bit_rate_slider_->SetFormat(tr("%1 kbps"));
   layout->addWidget(bit_rate_slider_, row, 1);
 
@@ -79,9 +81,9 @@ int ExportAudioTab::SetFormat(ExportFormat::Format format)
 {
   QList<ExportCodec::Codec> acodecs = ExportFormat::GetAudioCodecs(format);
   setEnabled(!acodecs.isEmpty());
-  codec_combobox()->clear();
+  codec_combobox_->clear();
   foreach (ExportCodec::Codec acodec, acodecs) {
-    codec_combobox()->addItem(ExportCodec::GetCodecName(acodec), acodec);
+    codec_combobox_->addItem(ExportCodec::GetCodecName(acodec), acodec);
   }
   return acodecs.size();
 }

app/dialog/export/exportaudiotab.h

@@ -37,9 +37,19 @@ class ExportAudioTab : public QWidget
 public:
   ExportAudioTab(QWidget* parent = nullptr);
 
-  QComboBox* codec_combobox() const
+  ExportCodec::Codec GetCodec() const
   {
-    return codec_combobox_;
+    return static_cast<ExportCodec::Codec>(codec_combobox_->currentData().toInt());
+  }
+
+  void SetCodec(ExportCodec::Codec c)
+  {
+    for (int i=0; i<codec_combobox_->count(); i++) {
+      if (codec_combobox_->itemData(i) == c) {
+        codec_combobox_->setCurrentIndex(i);
+        break;
+      }
+    }
   }
 
   SampleRateComboBox* sample_rate_combobox() const
@@ -47,6 +57,11 @@ public:
     return sample_rate_combobox_;
   }
 
+  SampleFormatComboBox* sample_format_combobox() const
+  {
+    return sample_format_combobox_;
+  }
+
   ChannelLayoutComboBox* channel_layout_combobox() const
   {
     return channel_layout_combobox_;
@@ -64,6 +79,7 @@ private:
   QComboBox* codec_combobox_;
   SampleRateComboBox* sample_rate_combobox_;
   ChannelLayoutComboBox* channel_layout_combobox_;
+  SampleFormatComboBox *sample_format_combobox_;
   IntegerSlider* bit_rate_slider_;
 
 };

app/dialog/export/exportformatcombobox.cpp

@@ -33,12 +33,16 @@ ExportFormatComboBox::ExportFormatComboBox(Mode mode, QWidget *parent) :
     case kShowAllFormats:
       break;
     case kShowAudioOnly:
-      if (!ExportFormat::GetVideoCodecs(f).isEmpty()) {
+      if (!ExportFormat::GetVideoCodecs(f).isEmpty()
+          || !ExportFormat::GetSubtitleCodecs(f).isEmpty()
+          || ExportFormat::GetAudioCodecs(f).isEmpty()) {
         continue;
       }
       break;
     case kShowVideoOnly:
-      if (!ExportFormat::GetAudioCodecs(f).isEmpty()) {
+      if (ExportFormat::GetVideoCodecs(f).isEmpty()
+          || !ExportFormat::GetSubtitleCodecs(f).isEmpty()
+          || !ExportFormat::GetAudioCodecs(f).isEmpty()) {
         continue;
       }
       break;