export: use codec IDs rather than strings

Vastly improves portability between library versions.

app/codec/CMakeLists.txt

@@ -23,6 +23,10 @@ set(OLIVE_SOURCES
   codec/decoder.cpp
   codec/encoder.h
   codec/encoder.cpp
+  codec/exportcodec.h
+  codec/exportcodec.cpp
+  codec/exportformat.h
+  codec/exportformat.cpp
   codec/frame.h
   codec/frame.cpp
   codec/samplebuffer.h

app/codec/encoder.cpp

@@ -49,14 +49,14 @@ void EncodingParams::SetFilename(const QString &filename)
   filename_ = filename;
 }
 
-void EncodingParams::EnableVideo(const VideoRenderingParams &video_params, const QString &vcodec)
+void EncodingParams::EnableVideo(const VideoRenderingParams &video_params, const ExportCodec::Codec &vcodec)
 {
   video_enabled_ = true;
   video_params_ = video_params;
   video_codec_ = vcodec;
 }
 
-void EncodingParams::EnableAudio(const AudioRenderingParams &audio_params, const QString &acodec)
+void EncodingParams::EnableAudio(const AudioRenderingParams &audio_params, const ExportCodec::Codec &acodec)
 {
   audio_enabled_ = true;
   audio_params_ = audio_params;
@@ -98,7 +98,7 @@ bool EncodingParams::video_enabled() const
   return video_enabled_;
 }
 
-const QString &EncodingParams::video_codec() const
+const ExportCodec::Codec &EncodingParams::video_codec() const
 {
   return video_codec_;
 }
@@ -138,7 +138,7 @@ bool EncodingParams::audio_enabled() const
   return audio_enabled_;
 }
 
-const QString &EncodingParams::audio_codec() const
+const ExportCodec::Codec &EncodingParams::audio_codec() const
 {
   return audio_codec_;
 }

app/codec/encoder.h

@@ -24,6 +24,8 @@
 #include <memory>
 #include <QString>
 
+#include "codec/exportcodec.h"
+#include "codec/exportformat.h"
 #include "codec/frame.h"
 #include "common/timerange.h"
 #include "render/audioparams.h"
@@ -40,8 +42,8 @@ public:
 
   void SetFilename(const QString& filename);
 
-  void EnableVideo(const VideoRenderingParams& video_params, const QString& vcodec);
-  void EnableAudio(const AudioRenderingParams& audio_params, const QString& acodec);
+  void EnableVideo(const VideoRenderingParams& video_params, const ExportCodec::Codec& vcodec);
+  void EnableAudio(const AudioRenderingParams& audio_params, const ExportCodec::Codec &acodec);
 
   void set_video_option(const QString& key, const QString& value);
   void set_video_bit_rate(const int64_t& rate);
@@ -52,7 +54,7 @@ public:
   const QString& filename() const;
 
   bool video_enabled() const;
-  const QString& video_codec() const;
+  const ExportCodec::Codec& video_codec() const;
   const VideoRenderingParams& video_params() const;
   const QHash<QString, QString>& video_opts() const;
   const int64_t& video_bit_rate() const;
@@ -61,7 +63,7 @@ public:
   const int& video_threads() const;
 
   bool audio_enabled() const;
-  const QString& audio_codec() const;
+  const ExportCodec::Codec &audio_codec() const;
   const AudioRenderingParams& audio_params() const;
 
   const rational& GetExportLength() const;
@@ -71,7 +73,7 @@ private:
   QString filename_;
 
   bool video_enabled_;
-  QString video_codec_;
+  ExportCodec::Codec video_codec_;
   VideoRenderingParams video_params_;
   QHash<QString, QString> video_opts_;
   int64_t video_bit_rate_;
@@ -80,7 +82,7 @@ private:
   int video_threads_;
 
   bool audio_enabled_;
-  QString audio_codec_;
+  ExportCodec::Codec audio_codec_;
   AudioRenderingParams audio_params_;
 
   rational export_length_;

app/codec/exportcodec.cpp

@@ -0,0 +1,80 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "exportcodec.h"
+
+OLIVE_NAMESPACE_ENTER
+
+QString ExportCodec::GetCodecName(ExportCodec::Codec c)
+{
+  switch (c) {
+  case kCodecDNxHD:
+    return tr("DNxHD");
+  case kCodecH264:
+    return tr("H.264");
+  case kCodecH265:
+    return tr("H.265");
+  case kCodecOpenEXR:
+    return tr("OpenEXR");
+  case kCodecPNG:
+    return tr("PNG");
+  case kCodecProRes:
+    return tr("ProRes");
+  case kCodecTIFF:
+    return tr("TIFF");
+  case kCodecMP2:
+    return tr("MP2");
+  case kCodecMP3:
+    return tr("MP3");
+  case kCodecAAC:
+    return tr("AAC");
+  case kCodecPCM:
+    return tr("PCM (Uncompressed)");
+  case kCodecCount:
+    break;
+  }
+
+  return tr("Unknown");
+}
+
+bool ExportCodec::IsCodecAStillImage(ExportCodec::Codec c)
+{
+  switch (c) {
+  case kCodecDNxHD:
+  case kCodecH264:
+  case kCodecH265:
+  case kCodecProRes:
+  case kCodecMP2:
+  case kCodecMP3:
+  case kCodecAAC:
+  case kCodecPCM:
+    return false;
+  case kCodecOpenEXR:
+  case kCodecPNG:
+  case kCodecTIFF:
+    return true;
+  case kCodecCount:
+    break;
+  }
+
+  return false;
+}
+
+OLIVE_NAMESPACE_EXIT

app/codec/exportcodec.h

@@ -21,34 +21,35 @@
 #ifndef EXPORTCODEC_H
 #define EXPORTCODEC_H
 
+#include <QObject>
 #include <QString>
 
 #include "common/define.h"
 
 OLIVE_NAMESPACE_ENTER
 
-class ExportCodec {
+class ExportCodec : public QObject {
 public:
-  enum Flag {
-    kNone,
-    kStillImage
+  enum Codec {
+    kCodecDNxHD,
+    kCodecH264,
+    kCodecH265,
+    kCodecOpenEXR,
+    kCodecPNG,
+    kCodecProRes,
+    kCodecTIFF,
+
+    kCodecMP2,
+    kCodecMP3,
+    kCodecAAC,
+    kCodecPCM,
+
+    kCodecCount
   };
 
-  ExportCodec(const QString& name, const QString& id, Flag flags = kNone) :
-    name_(name),
-    id_(id),
-    flags_(flags)
-  {
-  }
+  static QString GetCodecName(Codec c);
 
-  const QString& name() const {return name_;}
-  const QString& id() const {return id_;}
-  const Flag& flags() const {return flags_;}
-
-private:
-  QString name_;
-  QString id_;
-  Flag flags_;
+  static bool IsCodecAStillImage(Codec c);
 
 };
 

app/codec/exportformat.cpp

@@ -0,0 +1,138 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "exportformat.h"
+
+OLIVE_NAMESPACE_ENTER
+
+QString ExportFormat::GetName(olive::ExportFormat::Format f)
+{
+  switch (f) {
+  case kFormatDNxHD:
+    return tr("DNxHD");
+  case kFormatMatroska:
+    return tr("Matroska Video");
+  case kFormatMPEG4:
+    return tr("MPEG-4 Video");
+  case kFormatOpenEXR:
+    return tr("OpenEXR");
+  case kFormatPNG:
+    return tr("PNG");
+  case kFormatTIFF:
+    return tr("TIFF");
+  case kFormatQuickTime:
+    return tr("QuickTime");
+  case kFormatCount:
+    break;
+  }
+
+  return tr("Unknown");
+}
+
+QString ExportFormat::GetExtension(ExportFormat::Format f)
+{
+  switch (f) {
+  case kFormatDNxHD:
+    return QStringLiteral("mxf");
+  case kFormatMatroska:
+    return QStringLiteral("mkv");
+  case kFormatMPEG4:
+    return QStringLiteral("mp4");
+  case kFormatOpenEXR:
+    return QStringLiteral("exr");
+  case kFormatPNG:
+    return QStringLiteral("png");
+  case kFormatTIFF:
+    return QStringLiteral("tiff");
+  case kFormatQuickTime:
+    return QStringLiteral("mov");
+  case kFormatCount:
+    break;
+  }
+
+  return QString();
+}
+
+QString ExportFormat::GetEncoder(ExportFormat::Format f)
+{
+  switch (f) {
+  case kFormatDNxHD:
+  case kFormatMatroska:
+  case kFormatQuickTime:
+  case kFormatMPEG4:
+    return QStringLiteral("ffmpeg");
+  case kFormatOpenEXR:
+  case kFormatPNG:
+  case kFormatTIFF:
+    return QStringLiteral("oiio");
+  case kFormatCount:
+    break;
+  }
+
+  return QString();
+}
+
+QList<ExportCodec::Codec> ExportFormat::GetVideoCodecs(ExportFormat::Format f)
+{
+  switch (f) {
+  case kFormatDNxHD:
+    return {ExportCodec::kCodecDNxHD};
+  case kFormatMatroska:
+    return {ExportCodec::kCodecH264, ExportCodec::kCodecH265};
+  case kFormatMPEG4:
+    return {ExportCodec::kCodecH264, ExportCodec::kCodecH265};
+  case kFormatOpenEXR:
+    return {ExportCodec::kCodecOpenEXR};
+  case kFormatPNG:
+    return {ExportCodec::kCodecPNG};
+  case kFormatTIFF:
+    return {ExportCodec::kCodecTIFF};
+  case kFormatQuickTime:
+    return {ExportCodec::kCodecH264, ExportCodec::kCodecH265, ExportCodec::kCodecProRes};
+  case kFormatCount:
+    break;
+  }
+
+  return {};
+}
+
+QList<ExportCodec::Codec> ExportFormat::GetAudioCodecs(ExportFormat::Format f)
+{
+  switch (f) {
+  case kFormatDNxHD:
+    return {ExportCodec::kCodecPCM};
+  case kFormatMatroska:
+    return {ExportCodec::kCodecAAC, ExportCodec::kCodecMP2, ExportCodec::kCodecMP3, ExportCodec::kCodecPCM};
+  case kFormatMPEG4:
+    return {ExportCodec::kCodecAAC, ExportCodec::kCodecMP2, ExportCodec::kCodecMP3, ExportCodec::kCodecPCM};
+  case kFormatQuickTime:
+    return {ExportCodec::kCodecAAC, ExportCodec::kCodecMP2, ExportCodec::kCodecMP3, ExportCodec::kCodecPCM};
+  case kFormatOpenEXR:
+  case kFormatPNG:
+  case kFormatTIFF:
+    return {};
+  case kFormatCount:
+    break;
+  }
+
+  return {};
+}
+
+OLIVE_NAMESPACE_EXIT

app/codec/exportformat.h

@@ -25,32 +25,29 @@
 #include <QString>
 
 #include "common/define.h"
+#include "exportcodec.h"
 
 OLIVE_NAMESPACE_ENTER
 
-class ExportFormat {
+class ExportFormat : public QObject {
 public:
-  ExportFormat(const QString& name, const QString& extension, const QString& encoder, const QList<int>& vcodecs, const QList<int>& acodecs) :
-    name_(name),
-    extension_(extension),
-    encoder_(encoder),
-    video_codecs_(vcodecs),
-    audio_codecs_(acodecs)
-  {
-  }
+  enum Format {
+    kFormatDNxHD,
+    kFormatMatroska,
+    kFormatMPEG4,
+    kFormatOpenEXR,
+    kFormatQuickTime,
+    kFormatPNG,
+    kFormatTIFF,
 
-  const QString& name() const {return name_;}
-  const QString& extension() const {return extension_;}
-  const QString& encoder() const {return encoder_;}
-  const QList<int>& video_codecs() const {return video_codecs_;}
-  const QList<int>& audio_codecs() const {return audio_codecs_;}
+    kFormatCount
+  };
 
-private:
-  QString name_;
-  QString extension_;
-  QString encoder_;
-  QList<int> video_codecs_;
-  QList<int> audio_codecs_;
+  static QString GetName(Format f);
+  static QString GetExtension(Format f);
+  static QString GetEncoder(Format f);
+  static QList<ExportCodec::Codec> GetVideoCodecs(ExportFormat::Format f);
+  static QList<ExportCodec::Codec> GetAudioCodecs(ExportFormat::Format f);
 
 };
 

app/codec/ffmpeg/ffmpegencoder.cpp

@@ -362,19 +362,57 @@ fail:
   return succeeded;
 }
 
-bool FFmpegEncoder::InitializeStream(AVMediaType type, AVStream** stream_ptr, AVCodecContext** codec_ctx_ptr, const QString& codec)
+bool FFmpegEncoder::InitializeStream(AVMediaType type, AVStream** stream_ptr, AVCodecContext** codec_ctx_ptr, const ExportCodec::Codec& codec)
 {
   if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
     Error(QStringLiteral("Cannot initialize a stream that is not a video or audio type"));
     return false;
   }
 
-  // Retrieve codec and convert to C string
-  QByteArray codec_bytes = codec.toUtf8();
-  const char* codec_c_str = codec_bytes.constData();
+  // Retrieve codec
+  AVCodecID codec_id;
+
+  switch (codec) {
+  case ExportCodec::kCodecDNxHD:
+    codec_id = AV_CODEC_ID_DNXHD;
+    break;
+  case ExportCodec::kCodecAAC:
+    codec_id = AV_CODEC_ID_AAC;
+    break;
+  case ExportCodec::kCodecMP2:
+    codec_id = AV_CODEC_ID_MP2;
+    break;
+  case ExportCodec::kCodecMP3:
+    codec_id = AV_CODEC_ID_MP3;
+    break;
+  case ExportCodec::kCodecH264:
+    codec_id = AV_CODEC_ID_H264;
+    break;
+  case ExportCodec::kCodecH265:
+    codec_id = AV_CODEC_ID_HEVC;
+    break;
+  case ExportCodec::kCodecOpenEXR:
+    codec_id = AV_CODEC_ID_EXR;
+    break;
+  case ExportCodec::kCodecPNG:
+    codec_id = AV_CODEC_ID_PNG;
+    break;
+  case ExportCodec::kCodecTIFF:
+    codec_id = AV_CODEC_ID_TIFF;
+    break;
+  case ExportCodec::kCodecProRes:
+    codec_id = AV_CODEC_ID_PRORES;
+    break;
+  case ExportCodec::kCodecPCM:
+    codec_id = AV_CODEC_ID_PCM_S16LE;
+    break;
+  case ExportCodec::kCodecCount:
+    Error(QStringLiteral("Unknown internal codec"));
+    return false;
+  }
 
   // Find encoder with this name
-  AVCodec* encoder = avcodec_find_encoder_by_name(codec_c_str);
+  AVCodec* encoder = avcodec_find_encoder(codec_id);
 
   if (!encoder) {
     Error(QStringLiteral("Failed to find codec for %1").arg(codec));

app/codec/ffmpeg/ffmpegencoder.h

@@ -69,7 +69,7 @@ private:
 
   bool WriteAVFrame(AVFrame* frame, AVCodecContext *codec_ctx, AVStream *stream);
 
-  bool InitializeStream(enum AVMediaType type, AVStream** stream, AVCodecContext** codec_ctx, const QString& codec);
+  bool InitializeStream(enum AVMediaType type, AVStream** stream, AVCodecContext** codec_ctx, const ExportCodec::Codec &codec);
   bool InitializeCodecContext(AVStream** stream, AVCodecContext** codec_ctx, AVCodec* codec);
   bool SetupCodecContext(AVStream *stream, AVCodecContext *codec_ctx, AVCodec *codec);
 

app/codec/oiio/oiiodecoder.h

@@ -35,6 +35,12 @@ class OIIODecoder : public Decoder
 public:
   OIIODecoder();
 
+  enum ExportCodec {
+    kCodecEXR,
+    kCodecPNG,
+    kCodecTIFF
+  };
+
   virtual QString id() override;
 
   virtual bool Probe(Footage *f, const QAtomicInt* cancelled) override;

app/dialog/export/CMakeLists.txt

@@ -24,8 +24,6 @@ set(OLIVE_SOURCES
   dialog/export/exportadvancedvideodialog.cpp
   dialog/export/exportaudiotab.h
   dialog/export/exportaudiotab.cpp
-  dialog/export/exportcodec.h
-  dialog/export/exportformat.h
   dialog/export/exportvideotab.h
   dialog/export/exportvideotab.cpp
   PARENT_SCOPE

app/dialog/export/export.cpp

@@ -41,8 +41,7 @@ OLIVE_NAMESPACE_ENTER
 
 ExportDialog::ExportDialog(ViewerOutput *viewer_node, QWidget *parent) :
   QDialog(parent),
-  viewer_node_(viewer_node),
-  previously_selected_format_(0)
+  viewer_node_(viewer_node)
 {
   QHBoxLayout* layout = new QHBoxLayout(this);
 
@@ -164,16 +163,15 @@ ExportDialog::ExportDialog(ViewerOutput *viewer_node, QWidget *parent) :
   // Set default filename
   SetDefaultFilename();
 
-  // Set up available export formats
-  SetUpFormats();
-
   // Populate combobox formats
-  foreach (const ExportFormat& format, formats_) {
-    format_combobox_->addItem(format.name());
+  for (int i=0; i<ExportFormat::kFormatCount; i++) {
+    format_combobox_->addItem(ExportFormat::GetName(static_cast<ExportFormat::Format>(i)));
   }
 
   // Set defaults
-  format_combobox_->setCurrentIndex(kFormatMPEG4);
+  format_combobox_->setCurrentIndex(ExportFormat::kFormatMPEG4);
+  previously_selected_format_ = ExportFormat::kFormatMPEG4;
+
   video_tab_->width_slider()->SetValue(viewer_node_->video_params().width());
   video_tab_->width_slider()->SetDefaultValue(viewer_node_->video_params().width());
   video_tab_->height_slider()->SetValue(viewer_node_->video_params().height());
@@ -235,7 +233,7 @@ void ExportDialog::StartExport()
 
   // Validate if the entered filename contains the correct extension (the extension is necessary for both FFmpeg and
   // OIIO to determine the output format)
-  QString necessary_ext = QStringLiteral(".%1").arg(formats_.at(format_combobox_->currentIndex()).extension());
+  QString necessary_ext = QStringLiteral(".%1").arg(ExportFormat::GetExtension(static_cast<ExportFormat::Format>(format_combobox_->currentIndex())));
 
   // If it doesn't, see if the user wants to append it automatically. If not, we don't abort the export.
   if (!filename_edit_->text().endsWith(necessary_ext, Qt::CaseInsensitive)) {
@@ -317,12 +315,12 @@ void ExportDialog::closeEvent(QCloseEvent *e)
 
 void ExportDialog::BrowseFilename()
 {
-  const ExportFormat& current_format = formats_.at(format_combobox_->currentIndex());
+  ExportFormat::Format f = static_cast<ExportFormat::Format>(format_combobox_->currentIndex());
 
   QString browsed_fn = QFileDialog::getSaveFileName(this,
                                                     "",
                                                     filename_edit_->text(),
-                                                    QStringLiteral("%1 (*.%2)").arg(current_format.name(), current_format.extension()),
+                                                    QStringLiteral("%1 (*.%2)").arg(ExportFormat::GetName(f), ExportFormat::GetExtension(f)),
                                                     nullptr,
 
                                                     // We don't confirm overwrite here because we do it later
@@ -336,9 +334,9 @@ void ExportDialog::BrowseFilename()
 void ExportDialog::FormatChanged(int index)
 {
   QString current_filename = filename_edit_->text();
-  const QString& previously_selected_ext = formats_.at(previously_selected_format_).extension();
-  const ExportFormat& current_format = formats_.at(index);
-  const QString& currently_selected_ext = current_format.extension();
+  QString previously_selected_ext = ExportFormat::GetExtension(previously_selected_format_);
+  ExportFormat::Format current_format = static_cast<ExportFormat::Format>(index);
+  QString currently_selected_ext = ExportFormat::GetExtension(current_format);
 
   // If the previous extension was added, remove it
   if (current_filename.endsWith(previously_selected_ext, Qt::CaseInsensitive)) {
@@ -350,18 +348,18 @@ void ExportDialog::FormatChanged(int index)
   current_filename.append(currently_selected_ext);
   filename_edit_->setText(current_filename);
 
-  previously_selected_format_ = index;
+  previously_selected_format_ = current_format;
 
   // Update video and audio comboboxes
   video_tab_->codec_combobox()->clear();
-  foreach (int vcodec, current_format.video_codecs()) {
-    video_tab_->codec_combobox()->addItem(codecs_.at(vcodec).name(), vcodec);
+  foreach (ExportCodec::Codec vcodec, ExportFormat::GetVideoCodecs(current_format)) {
+    video_tab_->codec_combobox()->addItem(ExportCodec::GetCodecName(vcodec), vcodec);
   }
   VideoCodecChanged();
 
   audio_tab_->codec_combobox()->clear();
-  foreach (int acodec, current_format.audio_codecs()) {
-    audio_tab_->codec_combobox()->addItem(codecs_.at(acodec).name(), acodec);
+  foreach (ExportCodec::Codec acodec, ExportFormat::GetAudioCodecs(current_format)) {
+    audio_tab_->codec_combobox()->addItem(ExportCodec::GetCodecName(acodec), acodec);
   }
 }
 
@@ -399,89 +397,15 @@ void ExportDialog::ResolutionChanged()
 
 void ExportDialog::VideoCodecChanged()
 {
-  int codec_index = video_tab_->codec_combobox()->currentData().toInt();
-  const ExportCodec& codec = codecs_.at(codec_index);
+  ExportCodec::Codec codec = static_cast<ExportCodec::Codec>(video_tab_->codec_combobox()->currentData().toInt());
 
-  if (codec_index == kCodecH264) {
+  if (codec == ExportCodec::kCodecH264) {
     video_tab_->SetCodecSection(video_tab_->h264_section());
-  } else if (codec.flags() & ExportCodec::kStillImage) {
+  } else if (ExportCodec::IsCodecAStillImage(codec)) {
     video_tab_->SetCodecSection(video_tab_->image_section());
   }
 }
 
-void ExportDialog::SetUpFormats()
-{
-  // Set up codecs
-  for (int i=0;i<kCodecCount;i++) {
-    switch (static_cast<Codec>(i)) {
-    case kCodecDNxHD:
-      codecs_.append(ExportCodec(tr("DNxHD"), "dnxhd"));
-      break;
-    case kCodecH264:
-      codecs_.append(ExportCodec(tr("H.264"), "libx264"));
-      break;
-    case kCodecH265:
-      codecs_.append(ExportCodec(tr("H.265"), "libx265"));
-      break;
-    case kCodecOpenEXR:
-      codecs_.append(ExportCodec(tr("OpenEXR"), "exr", ExportCodec::kStillImage));
-      break;
-    case kCodecPNG:
-      codecs_.append(ExportCodec(tr("PNG"), "png", ExportCodec::kStillImage));
-      break;
-    case kCodecProRes:
-      codecs_.append(ExportCodec(tr("ProRes"), "prores"));
-      break;
-    case kCodecTIFF:
-      codecs_.append(ExportCodec(tr("TIFF"), "tiff", ExportCodec::kStillImage));
-      break;
-    case kCodecMP2:
-      codecs_.append(ExportCodec(tr("MP2"), "mp2"));
-      break;
-    case kCodecMP3:
-      codecs_.append(ExportCodec(tr("MP3"), "libmp3lame"));
-      break;
-    case kCodecAAC:
-      codecs_.append(ExportCodec(tr("AAC"), "aac"));
-      break;
-    case kCodecPCM:
-      codecs_.append(ExportCodec(tr("PCM (Uncompressed)"), "pcm"));
-      break;
-    case kCodecCount:
-      break;
-    }
-  }
-
-  // Set up formats
-  for (int i=0;i<kFormatCount;i++) {
-    switch (static_cast<Format>(i)) {
-    case kFormatDNxHD:
-      formats_.append(ExportFormat(tr("DNxHD"), "mxf", "ffmpeg", {kCodecDNxHD}, {kCodecPCM}));
-      break;
-    case kFormatMatroska:
-      formats_.append(ExportFormat(tr("Matroska Video"), "mkv", "ffmpeg", {kCodecH264, kCodecH265}, {kCodecAAC, kCodecMP2, kCodecMP3, kCodecPCM}));
-      break;
-    case kFormatMPEG4:
-      formats_.append(ExportFormat(tr("MPEG-4 Video"), "mp4", "ffmpeg", {kCodecH264, kCodecH265}, {kCodecAAC, kCodecMP2, kCodecMP3, kCodecPCM}));
-      break;
-    case kFormatOpenEXR:
-      formats_.append(ExportFormat(tr("OpenEXR"), "exr", "oiio", {kCodecOpenEXR}, {}));
-      break;
-    case kFormatQuickTime:
-      formats_.append(ExportFormat(tr("QuickTime"), "mov", "ffmpeg", {kCodecH264, kCodecH265, kCodecProRes}, {kCodecAAC, kCodecMP2, kCodecMP3, kCodecPCM}));
-      break;
-    case kFormatPNG:
-      formats_.append(ExportFormat(tr("PNG"), "png", "oiio", {kCodecPNG}, {}));
-      break;
-    case kFormatTIFF:
-      formats_.append(ExportFormat(tr("TIFF"), "tiff", "oiio", {kCodecTIFF}, {}));
-      break;
-    case kFormatCount:
-      break;
-    }
-  }
-}
-
 void ExportDialog::LoadPresets()
 {
 
@@ -532,9 +456,8 @@ ExportParams ExportDialog::GenerateParams() const
   }
 
   if (video_enabled_->isChecked()) {
-    const ExportCodec& video_codec = codecs_.at(video_tab_->codec_combobox()->currentData().toInt());
-    params.EnableVideo(video_render_params,
-                       video_codec.id());
+    ExportCodec::Codec video_codec = static_cast<ExportCodec::Codec>(video_tab_->codec_combobox()->currentData().toInt());
+    params.EnableVideo(video_render_params, video_codec);
 
     params.set_video_threads(video_tab_->threads());
 
@@ -544,9 +467,8 @@ ExportParams ExportDialog::GenerateParams() const
   }
 
   if (audio_enabled_->isChecked()) {
-    const ExportCodec& audio_codec = codecs_.at(audio_tab_->codec_combobox()->currentData().toInt());
-    params.EnableAudio(audio_render_params,
-                       audio_codec.id());
+    ExportCodec::Codec audio_codec = static_cast<ExportCodec::Codec>(audio_tab_->codec_combobox()->currentData().toInt());
+    params.EnableAudio(audio_render_params, audio_codec);
   }
 
   return params;

app/dialog/export/export.h

@@ -27,9 +27,9 @@
 #include <QLineEdit>
 #include <QProgressBar>
 
+#include "codec/exportcodec.h"
+#include "codec/exportformat.h"
 #include "exportaudiotab.h"
-#include "exportcodec.h"
-#include "exportformat.h"
 #include "exportvideotab.h"
 #include "task/export/export.h"
 #include "widget/viewer/viewer.h"
@@ -46,7 +46,6 @@ protected:
   virtual void closeEvent(QCloseEvent *e) override;
 
 private:
-  void SetUpFormats();
   void LoadPresets();
   void SetDefaultFilename();
 
@@ -58,14 +57,11 @@ private:
 
   ViewerOutput* viewer_node_;
 
-  QList<ExportFormat> formats_;
-  int previously_selected_format_;
+  ExportFormat::Format previously_selected_format_;
 
   QCheckBox* video_enabled_;
   QCheckBox* audio_enabled_;
 
-  QList<ExportCodec> codecs_;
-
   ViewerWidget* preview_viewer_;
   QLineEdit* filename_edit_;
   QComboBox* format_combobox_;
@@ -80,35 +76,6 @@ private:
   QWidget* preferences_area_;
   QDialogButtonBox* buttons_;
 
-  enum Format {
-    kFormatDNxHD,
-    kFormatMatroska,
-    kFormatMPEG4,
-    kFormatOpenEXR,
-    kFormatQuickTime,
-    kFormatPNG,
-    kFormatTIFF,
-
-    kFormatCount
-  };
-
-  enum Codec {
-    kCodecDNxHD,
-    kCodecH264,
-    kCodecH265,
-    kCodecOpenEXR,
-    kCodecPNG,
-    kCodecProRes,
-    kCodecTIFF,
-
-    kCodecMP2,
-    kCodecMP3,
-    kCodecAAC,
-    kCodecPCM,
-
-    kCodecCount
-  };
-
 private slots:
   void BrowseFilename();