Updated analytics ID in documentation.

github troubleshooting says i need this

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,28 @@
+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Windows 10]
+ - butterflow-ui Version [e.g. 1.0.2]
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,17 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,77 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: windows-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'csharp' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    #- name: Autobuild
+    #  uses: github/codeql-action/autobuild@v1
+
+    - name: Setup MSBuild Path
+      uses: microsoft/Setup-MSBuild@v1
+        
+    #- name: Setup NuGet
+    #  uses: NuGet/setup-nuget@v1.0.4
+     
+    - name: Restore NuGet Packages
+      run: nuget restore butterflow-ui/butterflow-ui.sln
+ 
+    - name: Build and Publish Web App
+      run: msbuild /p:UseSharedCompilation=false butterflow-ui/butterflow-ui.sln
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

README.md

@@ -21,11 +21,19 @@ A graphical user interface for butterflow.
 * *Reusable Configurations*
 
   Save your favorite configurations and load them for use with other videos.
+
+* *Batch Processing*
+
+  Process multiple files at once using the same settings across all files.
   
 ## Contribution
 
 If you'd like to help contribute to the project, please don't be shy! Translation into your local language would always be appreciated. Translations can be generated automatically, but those automatic translations are prone to error. **butterflow-ui** can always be improved, and if there are missing features that you want, please submit a pull request.
 
+### Butterflow Needs a New Maintainer
+
+[butterflow](https://github.com/dthpham/butterflow) is currently looking for a new primary developer. If you're familiar with Python, C++, and the OpenCV toolkit, consider contributing to the project.
+
 ## Download
 
 **butterflow-ui** is conveniently packaged in a Windows installer file (MSI) built with the [WIX toolset](http://wixtoolset.org). The latest installer can be downloaded [here](https://github.com/wagesj45/butterflow-ui/releases/latest). You can also download [old releases](https://github.com/wagesj45/butterflow-ui/releases) as well.
@@ -33,3 +41,10 @@ If you'd like to help contribute to the project, please don't be shy! Translatio
 ## Code Documentation
 
 **butterflow-ui** is [fully documented](https://wagesj45.github.io/butterflow-ui) via [Sandcastle](https://github.com/EWSoftware/SHFB). You can find generated documents to help you contribute to the project in the [documentation section](https://wagesj45.github.io/butterflow-ui).
+
+## Donations
+
+[![Donate with Trans Pay](https://support.jordanwages.com/static/donate-with-transpay-en.png)](https://support.jordanwages.com?project=1)
+
+If you would like to donate to the development of **butterflow-ui**, please direct you donation to my [patron page](https://support.jordanwages.com) (powered by Stripe) or directly via my [PayPal.Me](https://www.paypal.me/wagesj45) page. You can also donate Ethereum [to my wallet](https://etherscan.io/address/0x917f3d67e2a7ec8884d241118ee829af57cc4afd).
+![Image](https://t.thebreadsticks.com/matomo.php?idsite=6&rec=1&action_name=README.md)

butterflow-ui.setup/butterflow-ui.setup.wixproj

@@ -17,6 +17,10 @@
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
     <OutputPath>bin\$(Configuration)\</OutputPath>
     <IntermediateOutputPath>obj\$(Configuration)\</IntermediateOutputPath>
+    <CompilerAdditionalOptions>
+    </CompilerAdditionalOptions>
+    <LinkerAdditionalOptions>
+    </LinkerAdditionalOptions>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Product.wxs" />

butterflow-ui.shfbproj

@@ -13,7 +13,7 @@
     <RootNamespace>Documentation</RootNamespace>
     <Name>Documentation</Name>
     <!-- SHFB properties -->
-    <FrameworkVersion>.NET Framework 4.7.1</FrameworkVersion>
+    <FrameworkVersion>.NET Framework 4.7.2</FrameworkVersion>
     <OutputPath>docs\</OutputPath>
     <HtmlHelpName>Documentation</HtmlHelpName>
     <Language>en-US</Language>
@@ -37,6 +37,25 @@
     </NamespaceSummaries>
     <VisibleItems>Attributes, ExplicitInterfaceImplementations, InheritedMembers, Internals, Privates, PrivateFields, Protected, SealedProtected, ProtectedInternalAsProtected, PublicCompilerGenerated, NonBrowsable</VisibleItems>
     <WarnOnMissingSourceContext>False</WarnOnMissingSourceContext>
+    <HtmlSdkLinkType>Msdn</HtmlSdkLinkType>
+    <BinaryTOC>True</BinaryTOC>
+    <IncludeFavorites>False</IncludeFavorites>
+    <WebsiteSdkLinkType>Msdn</WebsiteSdkLinkType>
+    <WebsiteAdContent>&amp;lt%3bscript type=&amp;quot%3btext/javascript&amp;quot%3b&amp;gt%3b
+  var _paq = window._paq = window._paq || []%3b
+  /%2a tracker methods like &amp;quot%3bsetCustomDimension&amp;quot%3b should be called before &amp;quot%3btrackPageView&amp;quot%3b %2a/
+  _paq.push%28[&amp;#39%3btrackPageView&amp;#39%3b]%29%3b
+  _paq.push%28[&amp;#39%3benableLinkTracking&amp;#39%3b]%29%3b
+  %28function%28%29 {
+    var u=&amp;quot%3b//t.thebreadsticks.com/&amp;quot%3b%3b
+    _paq.push%28[&amp;#39%3bsetTrackerUrl&amp;#39%3b, u+&amp;#39%3bjs/&amp;#39%3b]%29%3b
+    _paq.push%28[&amp;#39%3bsetSiteId&amp;#39%3b, &amp;#39%3b6&amp;#39%3b]%29%3b
+    var d=document, g=d.createElement%28&amp;#39%3bscript&amp;#39%3b%29, s=d.getElementsByTagName%28&amp;#39%3bscript&amp;#39%3b%29[0]%3b
+    g.type=&amp;#39%3btext/javascript&amp;#39%3b%3b g.async=true%3b g.src=u+&amp;#39%3bjs/&amp;#39%3b%3b s.parentNode.insertBefore%28g,s%29%3b
+  }%29%28%29%3b
+&amp;lt%3b/script&amp;gt%3b</WebsiteAdContent>
+    <AppendMarkdownFileExtensionsToUrls>False</AppendMarkdownFileExtensionsToUrls>
+    <SaveComponentCacheCapacity>100</SaveComponentCacheCapacity>
   </PropertyGroup>
   <!-- There are no properties for these groups.  AnyCPU needs to appear in order for Visual Studio to perform
 			 the build.  The others are optional common platform types that may appear. -->

butterflow-ui/AboutWindow.xaml

@@ -17,7 +17,7 @@
             </StackPanel>
             <WrapPanel HorizontalAlignment="Center">
                 <TextBlock Text="{x:Static loc:Localization.VersionLabel}" />
-                <TextBlock Text=" - "/>
+                <TextBlock Text=" - " />
                 <TextBlock Name="txtVersion" Text="0.0.0.0" />
             </WrapPanel>
             <TextBlock Text="{x:Static loc:Localization.AboutWindowDescription}" TextAlignment="Center" />
@@ -34,30 +34,38 @@
                 <Label Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" Content="{x:Static loc:Localization.DevelopersLabel}" />
                 <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
                     <TextBlock HorizontalAlignment="Center">
-                            <Hyperlink NavigateUri="https://github.com/wagesj45" RequestNavigate="Hyperlink_RequestNavigate">Jordan Wages</Hyperlink>
+                        <Hyperlink NavigateUri="https://github.com/wagesj45" RequestNavigate="Hyperlink_RequestNavigate">Jordan Wages</Hyperlink>
+                        |
+                        <Hyperlink NavigateUri="https://www.paypal.me/wagesj45" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.DonateLabel}" /></Hyperlink>
                     </TextBlock>
                 </StackPanel>
                 <Label Grid.Row="1" Grid.Column="0" VerticalAlignment="Center" Content="{x:Static loc:Localization.OpenSourceCreditsLabel}" />
                 <StackPanel Grid.Row="1" Grid.Column="1" VerticalAlignment="Center">
                     <TextBlock HorizontalAlignment="Center">
-                        butterflow 
+                        butterflow
                         | <Hyperlink NavigateUri="https://github.com/dthpham/butterflow" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowGithubLinkLabel}" /></Hyperlink>
                         | <Hyperlink NavigateUri="https://github.com/dthpham/butterflow/blob/master/LICENSE" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowLicenseLinkLabel}" /></Hyperlink>
                     </TextBlock>
                     <TextBlock HorizontalAlignment="Center">
-                        cs-mic 
+                        cs-mic
                         | <Hyperlink NavigateUri="https://github.com/wagesj45/cs-mic" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowGithubLinkLabel}" /></Hyperlink>
                         | <Hyperlink NavigateUri="https://github.com/wagesj45/cs-mic/blob/master/LICENSE" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowLicenseLinkLabel}" /></Hyperlink>
                     </TextBlock>
                     <TextBlock HorizontalAlignment="Center">
-                        Gu.Wpf.Media 
+                        Gu.Wpf.Media
                         | <Hyperlink NavigateUri="https://github.com/JohanLarsson/Gu.Wpf.Media" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowGithubLinkLabel}" /></Hyperlink>
                         | <Hyperlink NavigateUri="https://github.com/JohanLarsson/Gu.Wpf.Media/blob/master/LICENSE.md" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowLicenseLinkLabel}" /></Hyperlink>
                     </TextBlock>
+                    <TextBlock HorizontalAlignment="Center">
+                        Octokit
+                        | <Hyperlink NavigateUri="https://github.com/octokit/octokit.net" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowGithubLinkLabel}" /></Hyperlink>
+                        | <Hyperlink NavigateUri="https://github.com/octokit/octokit.net/blob/master/LICENSE.txt" RequestNavigate="Hyperlink_RequestNavigate"><TextBlock Text="{x:Static loc:Localization.AboutWindowLicenseLinkLabel}" /></Hyperlink>
+                    </TextBlock>
                 </StackPanel>
             </Grid>
             <Separator Margin="0,10" />
-            <Button Name="btnOK" MaxWidth="50" Content="{x:Static loc:Localization.OKLabel}" Click="btnOK_Click"/>
+            <TextBlock Text="{x:Static butterflow_ui:OctokitWrapper.CurrentVersionStatusDescription}" TextAlignment="Center" Margin="0,10" />
+            <Button Name="btnOK" MaxWidth="50" Content="{x:Static loc:Localization.OKLabel}" Click="btnOK_Click" />
         </StackPanel>
     </DockPanel>
-</Window>
+</Window>

butterflow-ui/App.config

@@ -13,6 +13,12 @@
             <setting name="Language" serializeAs="String">
                 <value>en-US</value>
             </setting>
+            <setting name="Device" serializeAs="String">
+                <value>0</value>
+            </setting>
+            <setting name="UseDefaultDevice" serializeAs="String">
+                <value>True</value>
+            </setting>
         </butterflow_ui.Properties.Settings>
     </userSettings>
 </configuration>

butterflow-ui/BoolVisibilityConverter.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Data;
+
+namespace butterflow_ui
+{
+    /// <summary> A visibility converter. </summary>
+    [ValueConversion(typeof(bool), typeof(Visibility))]
+    public class BoolVisibilityConverter : IValueConverter
+    {
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value produced by the binding source. </param>
+        /// <param name="targetType"> The type of the binding target property. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (targetType == typeof(Visibility))
+            {
+                return (bool)value ? Visibility.Visible : Visibility.Hidden;
+            }
+
+            throw new InvalidCastException(string.Format("Cannot convert type to {0} from bool.", targetType.Name));
+        }
+
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value that is produced by the binding target. </param>
+        /// <param name="targetType"> The type to convert to. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (targetType == typeof(Visibility))
+            {
+                return ((Visibility)value == Visibility.Visible) ? true : false;
+            }
+
+            throw new InvalidCastException(string.Format("Cannot convert type {0} to boolean.", targetType.Name));
+        }
+    }
+}

butterflow-ui/ButterflowWrapper.cs

@@ -24,9 +24,13 @@ namespace butterflow_ui
         private const string REGEX_PROGRESS = @"To write\:\s*\w*\s*\w*\,*\w*\s*(?<Progress>\d+\.*\d*)%";
         /// <summary> An alternative RegEx string for detecting progress made when rendering a video. </summary>
         private const string REGEX_PROGRESS_ALT = @"\<Rendering progress\:\s*(?<Progress>\d+\.*\d*)%\>";
+        /// <summary> The RegEx string for determining available processing devices in butterflow.. </summary>
+        private const string REGEX_DEVICE = @"\*\s*Device\s*(?<DeviceID>\d+)\s*\:\s*(?<DeviceName>(\w*\s*)*)";
 
         /// <summary> Full pathname of the butterflow executable file. </summary>
         private Lazy<string> executablePath = new Lazy<string>(() => Path.Combine(Directory.GetCurrentDirectory(), "ThirdPartyCompiled", "butterflow.exe"));
+        /// <summary> Queue of butterflow commands to run. </summary>
+        private Queue<string> runQueue = new Queue<string>();
         /// <summary> The console output from butterflow. </summary>
         private string consoleOutput = string.Empty;
         /// <summary> True if butterflow is running, false if not. </summary>
@@ -39,6 +43,8 @@ namespace butterflow_ui
         private InputInterpreter interpreter = new InputInterpreter();
         /// <summary> Event queue for all listeners interested in ParsedConsoleOutputRecieved events. </summary>
         public event EventHandler<ButterflowOutputArgs> ParsedConsoleOutputRecieved;
+        /// <summary> Event queue for all listeners interested in ButterflowExited events. </summary>
+        public event EventHandler<ButterflowExitArgs> ButterflowExited;
 
         #endregion
 
@@ -89,42 +95,34 @@ namespace butterflow_ui
             }
         }
 
+        /// <summary> Gets or sets the list of devices available for butterflow processing. </summary>
+        /// <value> The devices available for butterflow processing. </value>
+        public Dictionary<int, string> Devices { get; private set; } = new Dictionary<int, string>() { { 0, Localization.Localization.ForceCPU } };
+
         #endregion
 
         #region Methods
 
-        /// <summary> Runs butterflow with the given <paramref name="optionsConfiguration"/>. </summary>
+        /// <summary> Runs butterflow with the given <paramref name="optionsConfiguration"/> by adding it to the queue. </summary>
         /// <param name="optionsConfiguration"> The options configuration. </param>
         public void Run(OptionsConfiguration optionsConfiguration)
         {
-            string arguments = optionsConfiguration.ToButterflowArguments();
-
-            Run(arguments);
-        }
-
-        /// <summary> Kills the running instance of butterflow, cancelling its current operation. </summary>
-        public void Cancel()
-        {
-            if(this.IsRunning && this.runningProcess != null)
+            for (int i = 0; i < optionsConfiguration.VideoInput.Count(); i++)
             {
-                this.runningProcess.Kill();
+                var arguments = optionsConfiguration.ToButterflowArguments(i);
+                this.runQueue.Enqueue(arguments);
             }
+
+            ProcessQueue();
         }
 
-        /// <summary> Probes a video file. </summary>
-        /// <param name="videoFile"> The video file to be probed. </param>
-        public void Probe(string videoFile)
+        /// <summary> Process the queue of butterflow arguments. </summary>
+        public void ProcessQueue()
         {
-            string arguments = string.Format("-prb \"{0}\"", videoFile);
-            Run(arguments);
-        }
-
-        /// <summary> Runs butterflow with the given <paramref name="arguments"/>. </summary>
-        /// <param name="arguments">     Options for controlling the operation. </param>
-        private void Run(string arguments)
-        {
-            if (!this.IsRunning)
+            if (!this.IsRunning && this.runQueue.Any())
             {
+                var arguments = this.runQueue.Dequeue();
+
                 var process = new Process();
                 process.StartInfo = new ProcessStartInfo(executablePath.Value, arguments);
 
@@ -146,6 +144,41 @@ namespace butterflow_ui
             }
         }
 
+        /// <summary> Kills the running instance of butterflow, cancelling its current operation. </summary>
+        public void Cancel()
+        {
+            if (this.IsRunning && this.runningProcess != null)
+            {
+                this.runningProcess.Kill();
+            }
+
+            this.runQueue.Clear();
+        }
+
+        /// <summary> Probes a video file. </summary>
+        /// <param name="videoFile"> The video file to be probed. </param>
+        public void Probe(string videoFile)
+        {
+            string arguments = string.Format("-prb \"{0}\"", videoFile);
+            Run(arguments);
+        }
+
+        /// <summary> Gets the devices available for butterflow processing. </summary>
+        public void GetDevices()
+        {
+            string arguments = "--show-devices";
+            Run(arguments);
+        }
+
+        /// <summary> Runs butterflow with the given <paramref name="arguments"/> by adding it to the queue. </summary>
+        /// <param name="arguments">     Options for controlling the operation. </param>
+        private void Run(string arguments)
+        {
+            this.runQueue.Enqueue(arguments);
+
+            ProcessQueue();
+        }
+
         /// <summary> Event handler. Called by Process for exited events. </summary>
         /// <param name="sender"> Source of the event. </param>
         /// <param name="e">      Event information. </param>
@@ -153,6 +186,10 @@ namespace butterflow_ui
         {
             this.IsRunning = false;
             this.runningProcess = null;
+
+            OnButterflowExited();
+
+            ProcessQueue();
         }
 
         /// <summary>
@@ -181,7 +218,7 @@ namespace butterflow_ui
 
             // Test for playback rate
             regex = new Regex(REGEX_RATE);
-            foreach(Match match in regex.Matches(consoleOutput))
+            foreach (Match match in regex.Matches(consoleOutput))
             {
                 var rate = match.Groups["Rate"].Value;
 
@@ -190,7 +227,7 @@ namespace butterflow_ui
 
             // Test for progress being made when rendering a video
             regex = new Regex(REGEX_PROGRESS);
-            foreach(Match match in regex.Matches(consoleOutput))
+            foreach (Match match in regex.Matches(consoleOutput))
             {
                 var progress = match.Groups["Progress"].Value;
 
@@ -200,6 +237,7 @@ namespace butterflow_ui
                 OnParsedConsoleOutputRecieved(ButterflowOutputType.Progress, progress, consoleOutput);
             }
 
+            // An alternate test for progression on a rendering video
             regex = new Regex(REGEX_PROGRESS_ALT);
             foreach (Match match in regex.Matches(consoleOutput))
             {
@@ -210,6 +248,25 @@ namespace butterflow_ui
 
                 OnParsedConsoleOutputRecieved(ButterflowOutputType.Progress, progress, consoleOutput);
             }
+
+            // Test for device declaration
+            regex = new Regex(REGEX_DEVICE);
+            foreach (Match match in regex.Matches(consoleOutput))
+            {
+                var deviceID = match.Groups["DeviceID"].Value;
+                var deviceName = match.Groups["DeviceName"].Value.Trim();
+
+                //Add 1 to the index count. This accounts for the 0 index of the "Force CPU" option in the options window.
+                this.interpreter.Interpret(string.Concat(deviceID,"+1"));
+
+                if (!this.Devices.ContainsKey(this.interpreter.Int))
+                {
+                    this.Devices.Add(this.interpreter.Int, deviceName);
+                    OnPropertyChanged("Devices");
+                }
+
+                OnParsedConsoleOutputRecieved(ButterflowOutputType.Device, deviceName, consoleOutput);
+            }
         }
 
         /// <summary> Executes the parsed console output recieved action. </summary>
@@ -218,10 +275,13 @@ namespace butterflow_ui
         /// <param name="consoleOutput"> The console output from butterflow. </param>
         private void OnParsedConsoleOutputRecieved(ButterflowOutputType outputType, string value, string consoleOutput)
         {
-            if (this.ParsedConsoleOutputRecieved != null)
-            {
-                this.ParsedConsoleOutputRecieved(this, new ButterflowOutputArgs(outputType, value, consoleOutput));
-            }
+            this.ParsedConsoleOutputRecieved?.Invoke(this, new ButterflowOutputArgs(outputType, value, consoleOutput));
+        }
+
+        /// <summary> Executes the butterflow exited action. </summary>
+        private void OnButterflowExited()
+        {
+            this.ButterflowExited?.Invoke(this, new ButterflowExitArgs());
         }
 
         /// <summary> Event handler. Called by Process for output data received events. </summary>
@@ -288,6 +348,19 @@ namespace butterflow_ui
             #endregion
         }
 
+        /// <summary> Arguments for butterflow exiting. </summary>
+        public class ButterflowExitArgs : EventArgs
+        {
+            #region Constructors
+
+            public ButterflowExitArgs()
+            {
+                //
+            }
+
+            #endregion
+        }
+
         /// <summary> Values that represent butterflow output types. </summary>
         public enum ButterflowOutputType
         {
@@ -298,7 +371,9 @@ namespace butterflow_ui
             /// <summary> Video playback rate. </summary>
             Rate,
             /// <summary> Video processing progress. </summary>
-            Progress
+            Progress,
+            /// <summary> An available processing device. </summary>
+            Device
         }
 
         #endregion

butterflow-ui/InverseBoolVisibilityConverter.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Data;
+
+namespace butterflow_ui
+{
+    /// <summary> An inverse bool visibility converter. </summary>
+    [ValueConversion(typeof(bool), typeof(Visibility))]
+    public class InverseBoolVisibilityConverter : IValueConverter
+    {
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value produced by the binding source. </param>
+        /// <param name="targetType"> The type of the binding target property. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (targetType == typeof(Visibility))
+            {
+                return (bool)value ? Visibility.Hidden : Visibility.Visible;
+            }
+
+            throw new InvalidCastException(string.Format("Cannot convert type to {0} from bool.", targetType.Name));
+        }
+
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value that is produced by the binding target. </param>
+        /// <param name="targetType"> The type to convert to. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (targetType == typeof(Visibility))
+            {
+                return ((Visibility)value == Visibility.Visible) ? false : true;
+            }
+
+            throw new InvalidCastException(string.Format("Cannot convert type {0} to boolean.", targetType.Name));
+        }
+    }
+}

butterflow-ui/Localization/Localization.Designer.cs

@@ -195,6 +195,33 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Would you like to visit butterflow-ui on github to update to the latest version?.
+        /// </summary>
+        public static string BehindVersionQuestion {
+            get {
+                return ResourceManager.GetString("BehindVersionQuestion", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is behind the github repository and should be updated..
+        /// </summary>
+        public static string BehindVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("BehindVersionStatusDescription", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to ButterflowUI Configuration File.
+        /// </summary>
+        public static string ButterflowUIConfigurationLabel {
+            get {
+                return ResourceManager.GetString("ButterflowUIConfigurationLabel", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Cancel.
         /// </summary>
@@ -240,6 +267,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is up to date with the github repository..
+        /// </summary>
+        public static string CurrentVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("CurrentVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Custom Rate.
         /// </summary>
@@ -249,6 +285,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository..
+        /// </summary>
+        public static string CustomVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("CustomVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Developers and Contributors.
         /// </summary>
@@ -258,6 +303,24 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Computing Device.
+        /// </summary>
+        public static string DeviceLabel {
+            get {
+                return ResourceManager.GetString("DeviceLabel", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to donate.
+        /// </summary>
+        public static string DonateLabel {
+            get {
+                return ResourceManager.GetString("DonateLabel", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to _Edit.
         /// </summary>
@@ -348,6 +411,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Force CPU.
+        /// </summary>
+        public static string ForceCPU {
+            get {
+                return ResourceManager.GetString("ForceCPU", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Height.
         /// </summary>
@@ -465,6 +537,24 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Video previewing and subregion clipping is not available when processing multiple files..
+        /// </summary>
+        public static string MultipleFilesPreviewWarningLabel {
+            get {
+                return ResourceManager.GetString("MultipleFilesPreviewWarningLabel", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to [Multiple Files].
+        /// </summary>
+        public static string MultipleFilesText {
+            get {
+                return ResourceManager.GetString("MultipleFilesText", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to OK.
         /// </summary>
@@ -735,6 +825,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Supported File Types.
+        /// </summary>
+        public static string SupportedFileTypesLabel {
+            get {
+                return ResourceManager.GetString("SupportedFileTypesLabel", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to butterflow-ui.
         /// </summary>
@@ -753,6 +852,33 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Github failed to respond with the current version. This could be because of rate limits or a network failure..
+        /// </summary>
+        public static string UnknownVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("UnknownVersionStatusDescription", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to A newer version of butterflow-ui is available..
+        /// </summary>
+        public static string UpdateAvailableLabel {
+            get {
+                return ResourceManager.GetString("UpdateAvailableLabel", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Use Default Compute Device.
+        /// </summary>
+        public static string UseDefaultDeviceLabel {
+            get {
+                return ResourceManager.GetString("UseDefaultDeviceLabel", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Version.
         /// </summary>

butterflow-ui/Localization/Localization.ar.resx

@@ -360,4 +360,40 @@
   <data name="VersionLabel" xml:space="preserve">
     <value>الإصدار</value>
   </data>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>ButterflowUI ملف التكوين</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>لا تتوفر إمكانية معاينة الفيديو والقاطع الفرعي عند معالجة ملفات متعددة.</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[ملفات متعددة]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>أنواع الملفات المدعومة</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>الإصدار الحالي هو وراء مستودع جيثب ويجب تحديثه.</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>الإصدار الحالي محدث مع مستودع جيثب.</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>الإصدار الحالي هو قبل مستودع github ، أو هو نسخة مخصصة من butterflow -ii لا يمكن مقارنتها بمستودع جيثب.</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>فشل Github للرد مع الإصدار الحالي. قد يكون ذلك بسبب حدود المعدل أو فشل الشبكة.</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>هل ترغب في زيارة butterflow -i على جيثب للتحديث إلى أحدث إصدار؟</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>يتوفر إصدار أحدث من butterflow-ui.</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>جهاز الحوسبة</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>قوة وحدة المعالجة المركزية</value>
+  </data>
 </root>

butterflow-ui/Localization/Localization.es.resx

@@ -187,7 +187,7 @@
     <value>Resolución de salida</value>
   </data>
   <data name="SkipBackTooltip" xml:space="preserve">
-    <value>Salte hacia atrás en el video.</value>
+    <value>Salta hacia atrás en el video.</value>
   </data>
   <data name="SkipForwardTooltip" xml:space="preserve">
     <value>Salta hacia adelante en el video.</value>
@@ -286,7 +286,7 @@
     <value>Proceso</value>
   </data>
   <data name="ProcessTooltip" xml:space="preserve">
-    <value>Procesar el video Este puede ser un proceso largo.</value>
+    <value>Procesar el video. Esto puede resultar en un proceso largo.</value>
   </data>
   <data name="PyramidScaleLabel" xml:space="preserve">
     <value>Factor de escala de pirámide</value>
@@ -325,7 +325,7 @@
     <value>github</value>
   </data>
   <data name="AboutWindowLicenseLinkLabel" xml:space="preserve">
-    <value>licencia</value>
+    <value>Licencia</value>
   </data>
   <data name="AboutWindowTitle" xml:space="preserve">
     <value>Acerca de butterflow-ui</value>
@@ -349,15 +349,51 @@
     <value>Opciones de aplicación ...</value>
   </data>
   <data name="OptionsWindowLanguageChangeNotice" xml:space="preserve">
-    <value>Nota: Cambiar el idioma del usuario requerirá un reinicio del programa.</value>
+    <value>Nota: Cambiar el idioma del usuario requerirá reiniciar el programa.</value>
   </data>
   <data name="OptionsWindowTitle" xml:space="preserve">
     <value>Opciones</value>
   </data>
   <data name="SaveLabel" xml:space="preserve">
-    <value>Salvar</value>
+    <value>Guardar</value>
   </data>
   <data name="VersionLabel" xml:space="preserve">
     <value>Versión</value>
   </data>
-</root>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>Archivo de configuración de ButterflowUI</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>La vista previa de video y el recorte subregional no están disponibles cuando se procesan varios archivos.</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[Varios archivos]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>Tipos de archivos admitidos</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>La versión actual está desactualizada respecto del repositorio de Github y debe actualizarse.</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>La versión actual está actualizada con el repositorio github.</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>La versión actual está por delante del repositorio github, o es una versión personalizada de butterflow-ui que no se puede comparar con el repositorio github.</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Github no respondió con la versión actual. Esto podría deberse a límites de velocidad o a una falla de la red.</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>¿Le gustaría visitar butterflow-ui en github para actualizar a la última versión?</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>Una versión más reciente de butterflow-ui está disponible.</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>Dispositivo de computación</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>Unidad de procesamiento central de fuerza</value>
+  </data>
+</root>

butterflow-ui/Localization/Localization.ja.resx

@@ -360,4 +360,40 @@
   <data name="VersionLabel" xml:space="preserve">
     <value>バージョン</value>
   </data>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>ButterflowUI構成ファイル</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>複数のファイルを処理する場合、ビデオのプレビューとサブリージョンのクリッピングは使用できません。</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[複数のファイル]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>サポートされているファイルの種類</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>現在のバージョンはgithubリポジトリの後ろにあり、更新する必要があります。</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>現在のバージョンはgithubリポジトリで最新のものです。</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>現在のバージョンはgithubリポジトリより先にあるか、githubリポジトリと比較できないカスタムバージョンのbutterflow-uiです。</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Githubは現在のバージョンでは応答できませんでした。これは、レート制限またはネットワーク障害が原因である可能性があります。</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>最新版に更新するgithubでbutterflow-uiにアクセスしますか？</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>新しいバージョンのbutterflow-uiが利用可能です。</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>コンピューティングデバイス</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>中央処理装置を強制する</value>
+  </data>
 </root>

butterflow-ui/Localization/Localization.resx

@@ -360,4 +360,46 @@
   <data name="VersionLabel" xml:space="preserve">
     <value>Version</value>
   </data>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>ButterflowUI Configuration File</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>Video previewing and subregion clipping is not available when processing multiple files.</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[Multiple Files]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>Supported File Types</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>The current version is behind the github repository and should be updated.</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>The current version is up to date with the github repository.</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository.</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Github failed to respond with the current version. This could be because of rate limits or a network failure.</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>Would you like to visit butterflow-ui on github to update to the latest version?</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>A newer version of butterflow-ui is available.</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>Computing Device</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>Force CPU</value>
+  </data>
+  <data name="UseDefaultDeviceLabel" xml:space="preserve">
+    <value>Use Default Compute Device</value>
+  </data>
+  <data name="DonateLabel" xml:space="preserve">
+    <value>donate</value>
+  </data>
 </root>

butterflow-ui/Localization/Localization.ru.resx

@@ -360,4 +360,40 @@
   <data name="VersionLabel" xml:space="preserve">
     <value>Версия</value>
   </data>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>Файл конфигурации ButterflowUI</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>Предварительный просмотр видео и отсечение субрегиона недоступны при обработке нескольких файлов.</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[Несколько файлов]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>Поддерживаемые типы файлов</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>Текущая версия находится за репозиторием github и должна быть обновлена.</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>Текущая версия обновлена ​​с помощью репозитория github.</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>Текущая версия опережает репозиторий github или представляет собой пользовательскую версию butterflow-ui, которую нельзя сравнить с репозиторием github.</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Github не смог ответить текущей версией. Это может быть связано с ограничениями скорости или сбоем сети.</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>Вы хотите посетить butterflow-ui на github для обновления до последней версии?</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>Доступна более новая версия butterflow-ui.</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>Вычислительное устройство</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>Force CPU</value>
+  </data>
 </root>

butterflow-ui/Localization/Localization.zh-CN.resx

@@ -360,4 +360,40 @@
   <data name="VersionLabel" xml:space="preserve">
     <value>版</value>
   </data>
+  <data name="ButterflowUIConfigurationLabel" xml:space="preserve">
+    <value>ButterflowUI配置文件</value>
+  </data>
+  <data name="MultipleFilesPreviewWarningLabel" xml:space="preserve">
+    <value>处理多个文件时，视频预览和子区域剪辑不可用。</value>
+  </data>
+  <data name="MultipleFilesText" xml:space="preserve">
+    <value>[多个文件]</value>
+  </data>
+  <data name="SupportedFileTypesLabel" xml:space="preserve">
+    <value>支持的文件类型</value>
+  </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>当前版本位于github存储库后面，应该更新。</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>当前版本是github存储库的最新版本。</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>当前版本领先于github存储库，或者是butterflow-ui的自定义版本，无法与github存储库进行比较。</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Github未对当前版本做出回应。这可能是因为速率限制或网络故障。</value>
+  </data>
+  <data name="BehindVersionQuestion" xml:space="preserve">
+    <value>你是否想在github上访问butterflow-ui更新到最新版本？</value>
+  </data>
+  <data name="UpdateAvailableLabel" xml:space="preserve">
+    <value>有更新版本的butterflow-ui可供选择。</value>
+  </data>
+  <data name="DeviceLabel" xml:space="preserve">
+    <value>计算设备</value>
+  </data>
+  <data name="ForceCPU" xml:space="preserve">
+    <value>部队中央处理股</value>
+  </data>
 </root>

butterflow-ui/MainWindow.xaml

@@ -15,16 +15,18 @@
         <ObjectDataProvider x:Key="enumRegionTypeDataProvider" MethodName="GetValues"
                             ObjectType="{x:Type System:Enum}">
             <ObjectDataProvider.MethodParameters>
-                <x:Type TypeName="butterflow_ui:RegionType"/>
+                <x:Type TypeName="butterflow_ui:RegionType" />
             </ObjectDataProvider.MethodParameters>
         </ObjectDataProvider>
         <ObjectDataProvider x:Key="enumFlowFilterTypeDataProvider" MethodName="GetValues"
                             ObjectType="{x:Type System:Enum}">
             <ObjectDataProvider.MethodParameters>
-                <x:Type TypeName="butterflow_ui:FlowFilterType"/>
+                <x:Type TypeName="butterflow_ui:FlowFilterType" />
             </ObjectDataProvider.MethodParameters>
         </ObjectDataProvider>
         <butterflow_ui:InverseBoolConverter x:Key="InverseBoolConverter" />
+        <butterflow_ui:BoolVisibilityConverter x:Key="BoolVisibilityConverter" />
+        <butterflow_ui:InverseBoolVisibilityConverter x:Key="InverseBoolVisibilityConverter" />
     </Window.Resources>
     <DockPanel>
         <Menu DockPanel.Dock="Top">
@@ -54,7 +56,7 @@
                 </MenuItem>
             </MenuItem>
             <MenuItem Header="{x:Static loc:Localization.HelpMenu}">
-                <MenuItem Name="menuButterflowGithub" Header="{x:Static loc:Localization.AboutButterflowMenu}" Click="menuButterflowGithub_Click" >
+                <MenuItem Name="menuButterflowGithub" Header="{x:Static loc:Localization.AboutButterflowMenu}" Click="menuButterflowGithub_Click">
                     <MenuItem.Icon>
                         <ContentControl Template="{StaticResource LinkIcon}" />
                     </MenuItem.Icon>
@@ -81,7 +83,7 @@
             </Grid.RowDefinitions>
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="0.5*" />
-                <ColumnDefinition Width="0.5*"/>
+                <ColumnDefinition Width="0.5*" />
                 <ColumnDefinition Width="*" />
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
@@ -93,8 +95,8 @@
                             <ColumnDefinition Width="*" />
                             <ColumnDefinition Width="Auto" />
                         </Grid.ColumnDefinitions>
-                        <Label Grid.Column="0" Content="{x:Static loc:Localization.FileLabel}"/>
-                        <TextBox Name="txtFileName" Grid.Column="1" IsReadOnly="True" Text="{Binding OptionsConfiguration.VideoInput, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}"/>
+                        <Label Grid.Column="0" Content="{x:Static loc:Localization.FileLabel}" />
+                        <TextBox Name="txtFileName" Grid.Column="1" IsReadOnly="True" />
                         <Button Grid.Column="2" MinWidth="25" Name="btnFilePicker" Click="btnFilePicker_Click">...</Button>
                     </Grid>
                 </GroupBox>
@@ -105,8 +107,8 @@
                             <ColumnDefinition Width="*" />
                             <ColumnDefinition Width="Auto" />
                         </Grid.ColumnDefinitions>
-                        <Label Grid.Column="0" Content="{x:Static loc:Localization.FileLabel}"/>
-                        <TextBox Name="txtFileOutputName" Grid.Column="1" IsReadOnly="True" Text="{Binding OptionsConfiguration.VideoOutput, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}"/>
+                        <Label Grid.Column="0" Content="{x:Static loc:Localization.FileLabel}" />
+                        <TextBox Name="txtFileOutputName" Grid.Column="1" IsReadOnly="True" Text="{Binding OptionsConfiguration.VideoOutput, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}" />
                         <Button Grid.Column="2" MinWidth="25" Name="btnFileOutputPicker" Click="btnFileOutputPicker_Click">...</Button>
                     </Grid>
                 </GroupBox>
@@ -132,7 +134,7 @@
             <GroupBox Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Header="{x:Static loc:Localization.CommonOptionsGroupBox}">
                 <ScrollViewer>
                     <StackPanel>
-                        <butterflow_ui:ButterflowOption LabelValue="{x:Static loc:Localization.PlaybackRateLabel}" >
+                        <butterflow_ui:ButterflowOption LabelValue="{x:Static loc:Localization.PlaybackRateLabel}">
                             <StackPanel Orientation="Vertical">
                                 <butterflow_ui:ButterflowOption LabelValue="">
                                     <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._2xLabel}" Tag="2x" />
@@ -144,7 +146,7 @@
                                     <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._4xLabel}" Tag="4x" />
                                 </butterflow_ui:ButterflowOption>
                                 <butterflow_ui:ButterflowOption LabelValue="">
-                                    <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._24fpsLabel}" Tag="24"/>
+                                    <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._24fpsLabel}" Tag="24" />
                                 </butterflow_ui:ButterflowOption>
                                 <butterflow_ui:ButterflowOption LabelValue="">
                                     <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._30fpsLabel}" Tag="30" />
@@ -156,7 +158,7 @@
                                     <RadioButton GroupName="PlaybackRate" Checked="PlaybackRateRadioButton_Checked" Content="{x:Static loc:Localization._120fpsLabel}" Tag="120" />
                                 </butterflow_ui:ButterflowOption>
                                 <butterflow_ui:ButterflowOption LabelValue="{x:Static loc:Localization.CustomPlaybackRateLabel}" DescriptionValue="{x:Static loc:Localization.PlaybackRateDescription}">
-                                    <TextBox Name="txtPlaybackRate" Text="{Binding OptionsConfiguration.PlaybackRate, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}" GotFocus="txtPlaybackRate_GotFocus"  />
+                                    <TextBox Name="txtPlaybackRate" Text="{Binding OptionsConfiguration.PlaybackRate, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}" GotFocus="txtPlaybackRate_GotFocus" />
                                 </butterflow_ui:ButterflowOption>
                             </StackPanel>
                         </butterflow_ui:ButterflowOption>
@@ -201,7 +203,6 @@
                                     </ToggleButton.Style>
                                 </ToggleButton>
                                 <Button BorderThickness="0" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Click="bntVideoStop_Click">
-
                                 </Button>
                                 <butterflow_ui:ButterflowOption Grid.Column="2" LabelValue="{x:Static loc:Localization.HeightLabel}">
                                     <TextBox Text="{Binding OptionsConfiguration.Height, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=LostFocus}" IsReadOnly="{Binding OptionsConfiguration.LockAspectRatio, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}">
@@ -231,10 +232,10 @@
                                     <DataTemplate>
                                         <DockPanel MaxHeight="24">
                                             <TextBlock VerticalAlignment="Center" Text="{x:Static loc:Localization.StartLabel}" />
-                                            <TextBlock VerticalAlignment="Center" Text="{Binding Start, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" ToolTip="{Binding Start}"/>
+                                            <TextBlock VerticalAlignment="Center" Text="{Binding Start, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" ToolTip="{Binding Start}" />
                                             <TextBlock VerticalAlignment="Center" Text="{x:Static loc:Localization.EndLabel}" />
-                                            <TextBlock VerticalAlignment="Center" Text="{Binding End, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" ToolTip="{Binding End}"/>
-                                            <ComboBox VerticalAlignment="Center" ItemsSource="{Binding Source={StaticResource enumRegionTypeDataProvider}}" SelectedItem="{Binding SubregionType, Mode=TwoWay}"/>
+                                            <TextBlock VerticalAlignment="Center" Text="{Binding End, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" ToolTip="{Binding End}" />
+                                            <ComboBox VerticalAlignment="Center" ItemsSource="{Binding Source={StaticResource enumRegionTypeDataProvider}}" SelectedItem="{Binding SubregionType, Mode=TwoWay}" />
                                             <TextBox VerticalAlignment="Center" MinWidth="35" Text="{Binding Value, Mode=TwoWay}" />
                                             <TextBlock VerticalAlignment="Center" Text="{x:Static loc:Localization.ToEndLabel}" />
                                             <CheckBox VerticalAlignment="Center" IsChecked="{Binding ToEnd, Mode=TwoWay}" />
@@ -274,7 +275,7 @@
                             <TextBox Text="{Binding OptionsConfiguration.SmoothDerivativeStandardDeviation, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=LostFocus}" />
                         </butterflow_ui:ButterflowOption>
                         <butterflow_ui:ButterflowOption LabelValue="{x:Static loc:Localization.FlowFilterLabel}" DescriptionValue="{x:Static loc:Localization.FlowFilterTooltip}">
-                            <ComboBox ItemsSource="{Binding Source={StaticResource enumFlowFilterTypeDataProvider}}" SelectedItem="{Binding OptionsConfiguration.FlowFilterType, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}"/>
+                            <ComboBox ItemsSource="{Binding Source={StaticResource enumFlowFilterTypeDataProvider}}" SelectedItem="{Binding OptionsConfiguration.FlowFilterType, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}" />
                         </butterflow_ui:ButterflowOption>
                     </StackPanel>
                 </ScrollViewer>
@@ -307,20 +308,23 @@
                         </ProgressBar.Style>
                     </ProgressBar>
                 </Grid>
-                <gu:MediaElementWrapper Grid.Row="1" Name="mediaPreview" Stretch="Uniform" ScrubbingEnabled="True" Source="{Binding OptionsConfiguration.VideoInput, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged}" MediaOpened="mediaPreview_MediaOpened" MediaEnded="mediaPreview_MediaEnded" />
-                <Grid Grid.Row="2">
+                <Canvas x:Name="canvas" Grid.Row="1" Grid.RowSpan="3" Visibility="{Binding OptionsConfiguration.MultipleFiles, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource BoolVisibilityConverter}}">
+                    <TextBlock TextAlignment="Center" VerticalAlignment="Center" Width="{Binding ActualWidth, ElementName=canvas}" Height="{Binding ActualHeight, ElementName=canvas}" TextWrapping="WrapWithOverflow" Text="{x:Static loc:Localization.MultipleFilesPreviewWarningLabel}" />
+                </Canvas>
+                <gu:MediaElementWrapper Grid.Row="1" Name="mediaPreview" Stretch="Uniform" ScrubbingEnabled="True" MediaEnded="mediaPreview_MediaEnded" Visibility="{Binding OptionsConfiguration.MultipleFiles, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource InverseBoolVisibilityConverter}}" />
+                <Grid Grid.Row="2" Visibility="{Binding OptionsConfiguration.MultipleFiles, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource InverseBoolVisibilityConverter}}">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="Auto" />
                         <ColumnDefinition Width="*" />
                         <ColumnDefinition Width="Auto" />
                     </Grid.ColumnDefinitions>
                     <Label Grid.Column="0" Content="{Binding ElementName=mediaPreview, Path=Position, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" />
-                    <Slider Grid.Column="1" Name="sliderMedia" 
-                            Value="{Binding ElementName=mediaPreview, Path=Position, Converter={x:Static gu:NullableTimeSpanToSecondsConverter.Default}}" 
+                    <Slider Grid.Column="1" Name="sliderMedia"
+                            Value="{Binding ElementName=mediaPreview, Path=Position, Converter={x:Static gu:NullableTimeSpanToSecondsConverter.Default}}"
                             Maximum="{Binding Path=Length, ElementName=mediaPreview, Converter={x:Static gu:NullableTimeSpanToSecondsConverter.Default}}" />
                     <Label Grid.Column="2" Content="{Binding Path=Length, ElementName=mediaPreview, Converter={x:Static gu:TimeSpanToStringConverter.Default}}" />
                 </Grid>
-                <StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Center">
+                <StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Center" Visibility="{Binding OptionsConfiguration.MultipleFiles, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource InverseBoolVisibilityConverter}}">
                     <Button Name="bntVideoBackward" BorderThickness="0" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Click="bntVideoBackward_Click">
                         <ContentControl HorizontalAlignment="Center" Template="{StaticResource BackwardIcon}" />
                     </Button>
@@ -355,9 +359,9 @@
                     </Button>
                 </StatusBarItem>
                 <StatusBarItem Grid.Column="1">
-                    <TextBlock Text="{Binding OptionsConfiguration.CommandLineOutput, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}}"/>
+                    <TextBlock Text="{Binding OptionsConfiguration.CommandLineOutput, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:MainWindow}}}" />
                 </StatusBarItem>
             </StatusBar>
         </Grid>
     </DockPanel>
-</Window>
+</Window>

butterflow-ui/MainWindow.xaml.cs

@@ -25,6 +25,9 @@ namespace butterflow_ui
     {
         #region Members
 
+        /// <summary> List of types of videos supported by ffmpeg, and thus butterflow. </summary>
+        private const string SUPPORTED_FILE_TYPES = "*.3dostr;*.3g2;*.3gp;*.4xm;*.a64;*.aa;*.aac;*.ac3;*.acm;*.act;*.adf;*.adp;*.ads;*.adts;*.adx;*.aea;*.afc;*.aiff;*.aix;*.alaw;*.alias_pix;*.alsa;*.amr;*.anm;*.apc;*.ape;*.apng;*.aqtitle;*.asf;*.asf_o;*.asf_stream;*.ass;*.ast;*.au;*.avi;*.avisynth;*.avm2;*.avr;*.avs;*.bethsoftvid;*.bfi;*.bfstm;*.bin;*.bink;*.bit;*.bmp_pipe;*.bmv;*.boa;*.brender_pix;*.brstm;*.c93;*.caca;*.caf;*.cavsvideo;*.cdg;*.cdxl;*.chromaprint;*.cine;*.concat;*.crc;*.dash;*.data;*.daud;*.dcstr;*.dds_pipe;*.dfa;*.dirac;*.dnxhd;*.dpx_pipe;*.dsf;*.dsicin;*.dss;*.dts;*.dtshd;*.dv;*.dv1394;*.dvbsub;*.dvbtxt;*.dvd;*.dxa;*.ea;*.ea_cdata;*.eac3;*.epaf;*.exr_pipe;*.f32be;*.f32le;*.f4v;*.f64be;*.f64le;*.fbdev;*.ffm;*.ffmetadata;*.fifo;*.film_cpk;*.filmstrip;*.flac;*.flic;*.flv;*.framecrc;*.framehash;*.framemd5;*.frm;*.fsb;*.g722;*.g723_1;*.g729;*.genh;*.gif;*.gsm;*.gxf;*.h261;*.h263;*.h264;*.hash;*.hds;*.hevc;*.hls;*.hls;*.applehttp;*.hnm;*.ico;*.idcin;*.idf;*.iec61883;*.iff;*.ilbc;*.image2;*.image2pipe;*.ingenient;*.ipmovie;*.ipod;*.ircam;*.ismv;*.iss;*.iv8;*.ivf;*.ivr;*.j2k_pipe;*.jack;*.jacosub;*.jpeg_pipe;*.jpegls_pipe;*.jv;*.latm;*.lavfi;*.libcdio;*.libdc1394;*.libgme;*.libopenmpt;*.live_flv;*.lmlm4;*.loas;*.lrc;*.lvf;*.lxf;*.m4v;*.matroska;*.matroska;*.webm;*.md5;*.mgsts;*.microdvd;*.mjpeg;*.mkvtimestamp_v2;*.mkv;*.mlp;*.mlv;*.mm;*.mmf;*.mov;*.mov;*.mp4;*.m4a;*.3gp;*.3g2;*.mj2;*.mp2;*.mp3;*.mp4;*.mpc;*.mpc8;*.mpeg;*.mpeg1video;*.mpeg2video;*.mpegts;*.mpegtsraw;*.mpegvideo;*.mpjpeg;*.mpl2;*.mpsub;*.msf;*.msnwctcp;*.mtaf;*.mtv;*.mulaw;*.musx;*.mv;*.mvi;*.mxf;*.mxf_d10;*.mxf_opatom;*.mxg;*.nc;*.nistsphere;*.nsv;*.null;*.nut;*.nuv;*.oga;*.ogg;*.ogv;*.oma;*.openal;*.opengl;*.opus;*.oss;*.paf;*.pam_pipe;*.pbm_pipe;*.pcx_pipe;*.pgm_pipe;*.pgmyuv_pipe;*.pictor_pipe;*.pjs;*.pmp;*.png_pipe;*.ppm_pipe;*.psp;*.psxstr;*.pulse;*.pva;*.pvf;*.qcp;*.qdraw_pipe;*.r3d;*.rawvideo;*.realtext;*.redspark;*.rl2;*.rm;*.roq;*.rpl;*.rsd;*.rso;*.rtp;*.rtp_mpegts;*.rtsp;*.s16be;*.s16le;*.s24be;*.s24le;*.s32be;*.s32le;*.s8;*.sami;*.sap;*.sbg;*.sdl;*.sdl2;*.sdp;*.sdr2;*.segment;*.sgi_pipe;*.shn;*.siff;*.singlejpeg;*.sln;*.smjpeg;*.smk;*.smoothstreaming;*.smush;*.sndio;*.sol;*.sox;*.spdif;*.spx;*.srt;*.stl;*.stream_segment;*.ssegment;*.subviewer;*.subviewer1;*.sunrast_pipe;*.sup;*.svag;*.svcd;*.swf;*.tak;*.tedcaptions;*.tee;*.thp;*.tiertexseq;*.tiff_pipe;*.tmv;*.truehd;*.tta;*.tty;*.txd;*.u16be;*.u16le;*.u24be;*.u24le;*.u32be;*.u32le;*.u8;*.uncodedframecrc;*.v210;*.v210x;*.v4l2;*.vag;*.vc1;*.vc1test;*.vcd;*.video4linux2;*.v4l2;*.vivo;*.vmd;*.vob;*.vobsub;*.voc;*.vpk;*.vplayer;*.vqf;*.w64;*.wav;*.wc3movie;*.webm;*.webm_chunk;*.webm_dash_manifest;*.webp;*.webp_pipe;*.webvtt;*.wsaud;*.wsd;*.wsvqa;*.wtv;*.wv;*.wve;*.x11grab;*.xa;*.xbin;*.xmv;*.xv;*.xvag;*.xwma;*.yop;*.yuv4mpegpipe";
+
         /// <summary> True if is the user has started clipping, false if not. </summary>
         private bool isClipping;
         /// <summary> The temporary storage for the clip start time. </summary>
@@ -48,6 +51,20 @@ namespace butterflow_ui
             this.ButterflowWrapper.ParsedConsoleOutputRecieved += ButterflowWrapper_ParsedConsoleOutputRecieved;
             this.OptionsConfiguration.AddConstantCallProperty("CommandLineOutput");
             InitializeComponent();
+
+            // Check for updates.
+            if (OctokitWrapper.CurrentVersionStatus == OctokitWrapper.VersionStatus.Behind)
+            {
+                var updateMessageBoxResult = MessageBox.Show(string.Format("{0} {1}", Localization.Localization.BehindVersionStatusDescription, Localization.Localization.BehindVersionQuestion), Localization.Localization.UpdateAvailableLabel, MessageBoxButton.YesNo, MessageBoxImage.Information);
+
+                // If the user wants to update now, take them to the latest release on github and close this window.
+                if (updateMessageBoxResult == MessageBoxResult.Yes)
+                {
+                    Process.Start("https://github.com/wagesj45/butterflow-ui/releases/latest");
+                    this.Close();
+                }
+            }
+
         }
 
         #region Methods
@@ -97,8 +114,8 @@ namespace butterflow_ui
                     this.OptionsConfiguration.Height = e.Value;
                     break;
                 case ButterflowWrapper.ButterflowOutputType.Progress:
-                    // This case doesn't need to be considered since we're binding the progress bar's value to a property on the butterflow wrapper.
-                    // We may use this in the future, though.
+                // This case doesn't need to be considered since we're binding the progress bar's value to a property on the butterflow wrapper.
+                // We may use this in the future, though.
                 default:
                     break;
             }
@@ -110,18 +127,29 @@ namespace butterflow_ui
         private void btnFilePicker_Click(object sender, RoutedEventArgs e)
         {
             var ofd = new OpenFileDialog();
-            ofd.Filter = "Supported Video Files|*.3dostr;*.3g2;*.3gp;*.4xm;*.a64;*.aa;*.aac;*.ac3;*.acm;*.act;*.adf;*.adp;*.ads;*.adts;*.adx;*.aea;*.afc;*.aiff;*.aix;*.alaw;*.alias_pix;*.alsa;*.amr;*.anm;*.apc;*.ape;*.apng;*.aqtitle;*.asf;*.asf_o;*.asf_stream;*.ass;*.ast;*.au;*.avi;*.avisynth;*.avm2;*.avr;*.avs;*.bethsoftvid;*.bfi;*.bfstm;*.bin;*.bink;*.bit;*.bmp_pipe;*.bmv;*.boa;*.brender_pix;*.brstm;*.c93;*.caca;*.caf;*.cavsvideo;*.cdg;*.cdxl;*.chromaprint;*.cine;*.concat;*.crc;*.dash;*.data;*.daud;*.dcstr;*.dds_pipe;*.dfa;*.dirac;*.dnxhd;*.dpx_pipe;*.dsf;*.dsicin;*.dss;*.dts;*.dtshd;*.dv;*.dv1394;*.dvbsub;*.dvbtxt;*.dvd;*.dxa;*.ea;*.ea_cdata;*.eac3;*.epaf;*.exr_pipe;*.f32be;*.f32le;*.f4v;*.f64be;*.f64le;*.fbdev;*.ffm;*.ffmetadata;*.fifo;*.film_cpk;*.filmstrip;*.flac;*.flic;*.flv;*.framecrc;*.framehash;*.framemd5;*.frm;*.fsb;*.g722;*.g723_1;*.g729;*.genh;*.gif;*.gsm;*.gxf;*.h261;*.h263;*.h264;*.hash;*.hds;*.hevc;*.hls;*.hls;*.applehttp;*.hnm;*.ico;*.idcin;*.idf;*.iec61883;*.iff;*.ilbc;*.image2;*.image2pipe;*.ingenient;*.ipmovie;*.ipod;*.ircam;*.ismv;*.iss;*.iv8;*.ivf;*.ivr;*.j2k_pipe;*.jack;*.jacosub;*.jpeg_pipe;*.jpegls_pipe;*.jv;*.latm;*.lavfi;*.libcdio;*.libdc1394;*.libgme;*.libopenmpt;*.live_flv;*.lmlm4;*.loas;*.lrc;*.lvf;*.lxf;*.m4v;*.matroska;*.matroska;*.webm;*.md5;*.mgsts;*.microdvd;*.mjpeg;*.mkvtimestamp_v2;*.mkv;*.mlp;*.mlv;*.mm;*.mmf;*.mov;*.mov;*.mp4;*.m4a;*.3gp;*.3g2;*.mj2;*.mp2;*.mp3;*.mp4;*.mpc;*.mpc8;*.mpeg;*.mpeg1video;*.mpeg2video;*.mpegts;*.mpegtsraw;*.mpegvideo;*.mpjpeg;*.mpl2;*.mpsub;*.msf;*.msnwctcp;*.mtaf;*.mtv;*.mulaw;*.musx;*.mv;*.mvi;*.mxf;*.mxf_d10;*.mxf_opatom;*.mxg;*.nc;*.nistsphere;*.nsv;*.null;*.nut;*.nuv;*.oga;*.ogg;*.ogv;*.oma;*.openal;*.opengl;*.opus;*.oss;*.paf;*.pam_pipe;*.pbm_pipe;*.pcx_pipe;*.pgm_pipe;*.pgmyuv_pipe;*.pictor_pipe;*.pjs;*.pmp;*.png_pipe;*.ppm_pipe;*.psp;*.psxstr;*.pulse;*.pva;*.pvf;*.qcp;*.qdraw_pipe;*.r3d;*.rawvideo;*.realtext;*.redspark;*.rl2;*.rm;*.roq;*.rpl;*.rsd;*.rso;*.rtp;*.rtp_mpegts;*.rtsp;*.s16be;*.s16le;*.s24be;*.s24le;*.s32be;*.s32le;*.s8;*.sami;*.sap;*.sbg;*.sdl;*.sdl2;*.sdp;*.sdr2;*.segment;*.sgi_pipe;*.shn;*.siff;*.singlejpeg;*.sln;*.smjpeg;*.smk;*.smoothstreaming;*.smush;*.sndio;*.sol;*.sox;*.spdif;*.spx;*.srt;*.stl;*.stream_segment;*.ssegment;*.subviewer;*.subviewer1;*.sunrast_pipe;*.sup;*.svag;*.svcd;*.swf;*.tak;*.tedcaptions;*.tee;*.thp;*.tiertexseq;*.tiff_pipe;*.tmv;*.truehd;*.tta;*.tty;*.txd;*.u16be;*.u16le;*.u24be;*.u24le;*.u32be;*.u32le;*.u8;*.uncodedframecrc;*.v210;*.v210x;*.v4l2;*.vag;*.vc1;*.vc1test;*.vcd;*.video4linux2;*.v4l2;*.vivo;*.vmd;*.vob;*.vobsub;*.voc;*.vpk;*.vplayer;*.vqf;*.w64;*.wav;*.wc3movie;*.webm;*.webm_chunk;*.webm_dash_manifest;*.webp;*.webp_pipe;*.webvtt;*.wsaud;*.wsd;*.wsvqa;*.wtv;*.wv;*.wve;*.x11grab;*.xa;*.xbin;*.xmv;*.xv;*.xvag;*.xwma;*.yop;*.yuv4mpegpipe";
+            ofd.Multiselect = true;
+            ofd.Filter = Localization.Localization.SupportedFileTypesLabel + "|" + SUPPORTED_FILE_TYPES;
 
             var result = ofd.ShowDialog(this);
             if (result.HasValue && result.Value)
             {
-                this.OptionsConfiguration.VideoInput = ofd.FileName;
-
+                this.OptionsConfiguration.VideoInput = ofd.FileNames;
                 this.ButterflowWrapper.Probe(ofd.FileName);
 
-                //Hack to get the first frame to display in the media preview element.
-                mediaPreview.Play();
-                mediaPreview.PausePlayback();
+                if (ofd.FileNames.Count() == 1)
+                {
+                    this.txtFileName.Text = ofd.FileName;
+                    this.mediaPreview.Source = new Uri(ofd.FileName);
+
+                    //Hack to get the first frame to display in the media preview element.
+                    this.mediaPreview.Play();
+                    this.mediaPreview.PausePlayback();
+                }
+                else
+                {
+                    this.txtFileName.Text = Localization.Localization.MultipleFilesText;
+                    this.mediaPreview.Source = default(Uri);
+                }
             }
         }
 
@@ -230,15 +258,6 @@ namespace butterflow_ui
             }
         }
 
-        /// <summary> Event handler. Called by mediaPreview for media opened events. </summary>
-        /// <param name="sender"> Source of the event. </param>
-        /// <param name="e">      Routed event information. </param>
-        private void mediaPreview_MediaOpened(object sender, RoutedEventArgs e)
-        {
-            //this.OptionsConfiguration.Width = this.mediaPreview.NaturalVideoWidth.ToString();
-            //this.OptionsConfiguration.Height = this.mediaPreview.NaturalVideoHeight.ToString();
-        }
-
         /// <summary> Event handler. Called by mediaPreview for media ended events. </summary>
         /// <param name="sender"> Source of the event. </param>
         /// <param name="e">      Routed event information. </param>
@@ -330,7 +349,7 @@ namespace butterflow_ui
         {
             var button = sender as Button;
 
-            if(button != null)
+            if (button != null)
             {
                 if (button.Tag.GetType() == typeof(Guid))
                 {
@@ -351,14 +370,14 @@ namespace butterflow_ui
         private void menuOpen_Click(object sender, RoutedEventArgs e)
         {
             var ofd = new OpenFileDialog();
-            ofd.Filter = "ButterflowUI Configuration|*.bui";
+            ofd.Filter = Localization.Localization.ButterflowUIConfigurationLabel + "|*.bui";
 
             var result = ofd.ShowDialog(this);
             if (result.HasValue && result.Value)
             {
                 var binaryFormatter = new BinaryFormatter();
                 var file = binaryFormatter.Deserialize(ofd.OpenFile());
-                if(file is OptionsConfigurationFile)
+                if (file is OptionsConfigurationFile)
                 {
                     this.OptionsConfiguration.LoadFile((OptionsConfigurationFile)file);
                 }
@@ -371,7 +390,7 @@ namespace butterflow_ui
         private void menuSaveConfiguration_Click(object sender, RoutedEventArgs e)
         {
             var sfd = new SaveFileDialog();
-            sfd.Filter = "ButterflowUI Configuration|*.bui";
+            sfd.Filter = Localization.Localization.ButterflowUIConfigurationLabel + "|*.bui";
 
             var result = sfd.ShowDialog(this);
             if (result.HasValue && result.Value)
@@ -414,7 +433,11 @@ namespace butterflow_ui
         {
             var optionsWindow = new OptionsWindow();
 
-            optionsWindow.Show();
+            optionsWindow.ShowDialog();
+
+            //Force an update on the command line arguments in case the user changed something in the
+            //Options window that necessitates it, such as the compute device.
+            this.OptionsConfiguration.ForceUpdate();
         }
 
         #endregion

butterflow-ui/OctokitWrapper.cs

@@ -0,0 +1,148 @@
+using csmic;
+using Octokit;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace butterflow_ui
+{
+    /// <summary>
+    /// An wrapper for the Octokit.net class. This class is used to extract functionality for
+    /// checking github for updates to butterflow-ui installation.
+    /// </summary>
+    public static class OctokitWrapper
+    {
+        #region Members
+
+        /// <summary> The RegEx string for matching . </summary>
+        private const string REGEX_VERSION = @"(?<Major>\d+ ?)\.(?<Minor>\d+ ?)\.(?<Patch>\d+ ?)";
+
+        /// <summary> The version status of the current installation. </summary>
+        private static VersionStatus versionStatus = VersionStatus.Unknown;
+
+        #endregion
+
+        #region Properties
+
+        /// <summary> Gets the current version status of this installation. </summary>
+        /// <value> The current version status of this installation. </value>
+        public static VersionStatus CurrentVersionStatus
+        {
+            get
+            {
+                return versionStatus;
+            }
+        }
+
+        /// <summary> Gets information describing the current version status. </summary>
+        /// <value> Information describing the current version status. </value>
+        public static string CurrentVersionStatusDescription
+        {
+            get
+            {
+                switch (CurrentVersionStatus)
+                {
+                    case VersionStatus.Current:
+                        return Localization.Localization.CurrentVersionStatusDescription;
+                    case VersionStatus.Behind:
+                        return Localization.Localization.BehindVersionStatusDescription;
+                    case VersionStatus.Custom:
+                        return Localization.Localization.CustomVersionStatusDescription;
+                    case VersionStatus.Unknown:
+                    default:
+                        return Localization.Localization.UnknownVersionStatusDescription;
+                }
+            }
+        }
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary> Static constructor. </summary>
+        static OctokitWrapper()
+        {
+            versionStatus = GetVersionStatus();
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary> Gets version status from github. </summary>
+        /// <returns> The current version status. </returns>
+        private static VersionStatus GetVersionStatus()
+        {
+            try
+            {
+                var interpreter = new InputInterpreter();
+                var client = new GitHubClient(new ProductHeaderValue("butterflow-ui"));
+                var releases = client.Repository.Release.GetAll("wagesj45", "butterflow-ui").Result;
+
+                if (releases.Any())
+                {
+                    var latest = releases.First();
+                    decimal latestMajor = 0, latestMinor = 0, latestPatch = 0, currentMajor = 0, currentMinor = 0, currentPatch = 0;
+
+                    var regex = new Regex(REGEX_VERSION);
+                    foreach (Match match in regex.Matches(latest.TagName))
+                    {
+                        latestMajor = interpreter.ComputeExpression(match.Groups["Major"].Value);
+                        latestMinor = interpreter.ComputeExpression(match.Groups["Minor"].Value);
+                        latestPatch = interpreter.ComputeExpression(match.Groups["Patch"].Value);
+                    }
+
+                    foreach (Match match in regex.Matches(Assembly.GetExecutingAssembly().GetName().Version.ToString()))
+                    {
+                        currentMajor = interpreter.ComputeExpression(match.Groups["Major"].Value);
+                        currentMinor = interpreter.ComputeExpression(match.Groups["Minor"].Value);
+                        currentPatch = interpreter.ComputeExpression(match.Groups["Patch"].Value);
+                    }
+
+                    if (latestMajor == currentMajor && latestMinor == currentMinor && latestPatch == currentPatch)
+                    {
+                        return VersionStatus.Current;
+                    }
+
+                    if (latestMajor >= currentMajor && latestMinor >= currentMinor && latestPatch >= currentPatch)
+                    {
+                        return VersionStatus.Behind;
+                    }
+
+                    return VersionStatus.Custom;
+                }
+            }
+            catch(Exception e)
+            {
+                //There was an issue connecting to Github. This could be caused by a missing network connection.
+                //We can safely ignore an error in this process and proceed, falling through to the default connection
+                //value of Unknown.
+            }
+
+            return VersionStatus.Unknown;
+        }
+
+        #endregion
+
+        #region Subclasses
+
+        /// <summary> Values that represent version status of the current installation of butterflow-ui. </summary>
+        public enum VersionStatus
+        {
+            /// <summary> The current version is up to date with the github repository. </summary>
+            Current,
+            /// <summary> The current version is behind the github repository and should be updated. </summary>
+            Behind,
+            /// <summary> The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository. </summary>
+            Custom,
+            /// <summary> Github failed to respond with the current version. This could be because of rate limits or a network failure. </summary>
+            Unknown
+        }
+
+        #endregion
+    }
+}

butterflow-ui/OptionsConfiguration.cs

@@ -2,14 +2,15 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using butterflow_ui.Properties;
 using csmic;
 
 namespace butterflow_ui
 {
-
     /// <summary> The butterflow options configuration. Contians all the options necessary to run butterflow and process a video. </summary>
     public class OptionsConfiguration : PropertyChangedAlerter
     {
@@ -17,65 +18,93 @@ namespace butterflow_ui
 
         /// <summary> The default pyramid scale setting. </summary>
         private const decimal DEFAULT_PYRAMID_SCALE = 0.5m;
+
         /// <summary> The default levels setting. </summary>
         private const int DEFAULT_LEVELS = 3;
+
         /// <summary> The default window size setting. </summary>
         private const int DEFAULT_WINDOW_SIZE = 25;
+
         /// <summary> The default iterations setting. </summary>
         private const int DEFAULT_ITERATIONS = 3;
+
         /// <summary> The default pixel neighborhood setting. </summary>
         private const int DEFAULT_PIXEL_NEIGHBORHOOD = 5;
+
         /// <summary> The default smooth derivative standard deviation setting. </summary>
         private const decimal DEFAULT_SMOOTH_DERIVATIVE_STANDARD_DEVIATION = 1.1m;
+
         /// <summary> The default flow filter type setting. </summary>
         private const FlowFilterType DEFAULT_FLOW_FILTER_TYPE = FlowFilterType.box;
 
+        /// <summary> The output file format when operating on more than one video. </summary>
+        private const string OUTPUT_FILE_FORMAT = "{0}_{1}";
+
         /// <summary> An input interpreter used for converting string values to numeric values. </summary>
         [NonSerialized]
         private InputInterpreter interpreter = new InputInterpreter();
+
         /// <summary> The aspect ratio used for calculating heights when the aspect ratio is locked. </summary>
         private decimal aspectRatio = 0;
 
         /// <summary> The playback rate. </summary>
         private string playbackRate;
+
         /// <summary> A value indicating whether or not to keep the original audio in the final video. </summary>
         private bool keepAudio;
+
         /// <summary> The width of the output video. </summary>
         private int width;
+
         /// <summary> The height of the output video. </summary>
         private int height;
+
         /// <summary> A value indicating whether or not to render unspecified subregions. </summary>
         private bool keepSubregions;
+
         /// <summary> A value indicating whether or not to render the final video with lossless quality. </summary>
         private bool losslessQuality;
+
         /// <summary> A value indicating whether or not to tune processing for smooth motion. </summary>
         private bool smoothMotion;
+
         /// <summary> A value indicating whether or not to lock the aspect ratio to the <seealso cref="width"/> of the video. </summary>
         private bool lockAspectRatio;
-        /// <summary> The video input file. </summary>
-        private string videoInput;
+
+        /// <summary> The video input files. </summary>
+        private IEnumerable<string> videoInput;
+
         /// <summary> The video output file. </summary>
         private string videoOutput;
+
         /// <summary> A value indicating whether or not to use fast pyramids when processing a video. </summary>
         private bool fastPyramid;
+
         /// <summary> The pyramid scale setting. </summary>
         private decimal pyramidScale;
+
         /// <summary> The level size setting. </summary>
         private int levels;
+
         /// <summary> Size of the windowing average. </summary>
         private int windowSize;
+
         /// <summary> The number of iterations per pyramid level. </summary>
         private int iterations;
+
         /// <summary> The size of pixel neighborhood. </summary>
         private int pixelNeighborhood;
+
         /// <summary> The standard deviation of smooth derivatives </summary>
         private decimal smoothDerivativeStandardDeviation;
+
         /// <summary> Type of the flow filter to use for processing. </summary>
         private FlowFilterType flowFilterType = FlowFilterType.box;
+
         /// <summary> The subregions of the video on which to process. </summary>
         private ObservableCollection<ButterflowSubregion> subregions = new ObservableCollection<ButterflowSubregion>();
 
-        #endregion
+        #endregion Members
 
         #region Properties
 
@@ -89,6 +118,16 @@ namespace butterflow_ui
             }
         }
 
+        /// <summary> Gets a value indicating whether butterflow will process multiple files. </summary>
+        /// <value> True if butterflow will process multiple files, false if not. </value>
+        public bool MultipleFiles
+        {
+            get
+            {
+                return this.VideoInput != null && this.VideoInput.Count() > 1;
+            }
+        }
+
         /// <summary> Gets or sets the playback rate. </summary>
         /// <value> The playback rate. </value>
         public string PlaybackRate
@@ -144,7 +183,7 @@ namespace butterflow_ui
             }
             set
             {
-                if (value && this.width != 0 && this.height != 0)
+                if(value && this.width != 0 && this.height != 0)
                 {
                     this.aspectRatio = Convert.ToDecimal(this.height) / Convert.ToDecimal(this.width);
                 }
@@ -171,7 +210,7 @@ namespace butterflow_ui
 
                 OnPropertyChanged();
 
-                if (this.lockAspectRatio)
+                if(this.lockAspectRatio)
                 {
                     interpreter.Interpret(string.Format("{0} * {1}", this.aspectRatio, this.width));
                     this.height = interpreter.Int;
@@ -229,7 +268,7 @@ namespace butterflow_ui
 
         /// <summary> Gets or sets the video input file path. </summary>
         /// <value> The video input file path. </value>
-        public string VideoInput
+        public IEnumerable<string> VideoInput
         {
             get
             {
@@ -239,6 +278,7 @@ namespace butterflow_ui
             {
                 this.videoInput = value;
                 OnPropertyChanged();
+                OnPropertyChanged("MultipleFiles");
             }
         }
 
@@ -349,7 +389,7 @@ namespace butterflow_ui
             {
                 interpreter.Interpret(value);
 
-                if (interpreter.Int >= 5 && interpreter.Int <= 7)
+                if(interpreter.Int >= 5 && interpreter.Int <= 7)
                 {
                     this.pixelNeighborhood = interpreter.Int;
                 }
@@ -404,7 +444,7 @@ namespace butterflow_ui
             }
         }
 
-        #endregion
+        #endregion Properties
 
         #region Contructors
 
@@ -420,6 +460,8 @@ namespace butterflow_ui
             this.smoothDerivativeStandardDeviation = DEFAULT_SMOOTH_DERIVATIVE_STANDARD_DEVIATION;
             this.flowFilterType = DEFAULT_FLOW_FILTER_TYPE;
 
+            this.videoInput = new string[0];
+
             this.subregions.CollectionChanged += Subregions_CollectionChanged; ;
         }
 
@@ -428,16 +470,16 @@ namespace butterflow_ui
         /// <param name="e">      Notify collection changed event information. </param>
         private void Subregions_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
         {
-            if (e.NewItems != null)
+            if(e.NewItems != null)
             {
-                foreach (ButterflowSubregion newItem in e.NewItems)
+                foreach(ButterflowSubregion newItem in e.NewItems)
                 {
                     newItem.PropertyChanged += SubregionPropertyChanged;
                 }
             }
-            if (e.OldItems != null)
+            if(e.OldItems != null)
             {
-                foreach (ButterflowSubregion oldItem in e.OldItems)
+                foreach(ButterflowSubregion oldItem in e.OldItems)
                 {
                     oldItem.PropertyChanged -= SubregionPropertyChanged;
                 }
@@ -446,15 +488,24 @@ namespace butterflow_ui
             OnPropertyChanged("CommandLineOutput");
         }
 
-        #endregion
+        #endregion Contructors
 
         #region Methods
 
+        /// <summary> Subregion property changed. </summary>
+        /// <param name="sender"> Source of the event. </param>
+        /// <param name="e">      Property changed event information. </param>
         private void SubregionPropertyChanged(object sender, PropertyChangedEventArgs e)
         {
             OnPropertyChanged("CommandLineOutput");
         }
 
+        /// <summary> Force the object's properties to report as updated. </summary>
+        public void ForceUpdate()
+        {
+            OnPropertyChanged();
+        }
+
         /// <summary> Converts this object to a <seealso cref="OptionsConfigurationFile"/>. </summary>
         /// <returns> This object as an OptionsConfigurationFile. </returns>
         public OptionsConfigurationFile ToFile()
@@ -502,11 +553,11 @@ namespace butterflow_ui
 
         /// <summary> Converts this object to a butterflow options. </summary>
         /// <returns> This object as a string. </returns>
-        public string ToButterflowArguments()
+        public string ToButterflowArguments(int videoInputIndex = 0)
         {
             var stringBuilder = new StringBuilder("-v "); // Verbose
 
-            if (this.LockAspectRatio)
+            if(this.LockAspectRatio)
             {
                 stringBuilder.AppendFormat("-vs {0}:-1 ", this.Width);
             }
@@ -515,28 +566,40 @@ namespace butterflow_ui
                 stringBuilder.AppendFormat("-vs {0}:{1} ", this.Width, this.Height);
             }
 
-            if (!string.IsNullOrWhiteSpace(this.PlaybackRate)) stringBuilder.AppendFormat("-r {0} ", this.PlaybackRate);
-            if (this.KeepAudio) stringBuilder.Append("-audio ");
-            if (this.LosslessQuality) stringBuilder.Append("-l ");
+            if(!Settings.Default.UseDefaultDevice)
+            {
+                if(Settings.Default.Device == 0)
+                {
+                    stringBuilder.Append("-sw ");
+                }
+                if(Settings.Default.Device > 0)
+                {
+                    stringBuilder.AppendFormat("-device {0} ", Settings.Default.Device - 1);
+                }
+            }
 
-            if (this.Subregions.Any())
+            if(!string.IsNullOrWhiteSpace(this.PlaybackRate)) stringBuilder.AppendFormat("-r {0} ", this.PlaybackRate);
+            if(this.KeepAudio) stringBuilder.Append("-audio ");
+            if(this.LosslessQuality) stringBuilder.Append("-l ");
+
+            if(this.Subregions.Any())
             {
                 stringBuilder.Append("-s ");
 
-                foreach (var anon in this.Subregions.Select((sr, index) => new { Index = index, Subregion = sr }))
+                foreach(var anon in this.Subregions.Select((sr, index) => new { Index = index, Subregion = sr }))
                 {
                     string format = "ss\\.fff";
 
-                    if (anon.Index > 0)
+                    if(anon.Index > 0)
                     {
                         stringBuilder.Append(":");
                     }
 
-                    if (anon.Subregion.Start.TotalHours > 1)
+                    if(anon.Subregion.Start.TotalHours > 1)
                     {
                         format = "h\\:m\\:s\\.fff";
                     }
-                    else if (anon.Subregion.Start.TotalMinutes > 1)
+                    else if(anon.Subregion.Start.TotalMinutes > 1)
                     {
                         format = "m\\:s\\.fff";
                     }
@@ -546,19 +609,48 @@ namespace butterflow_ui
                 stringBuilder.Append(" ");
             }
 
-            if (this.KeepSubregions) stringBuilder.Append("-k ");
-            if (this.SmoothMotion) stringBuilder.Append("-sm ");
-            if (this.FastPyramid) stringBuilder.Append("--fast-pyr ");
-            if (this.pyramidScale != DEFAULT_PYRAMID_SCALE) stringBuilder.AppendFormat("--pyr-scale {0} ", this.PyramidScale);
-            if (this.levels != DEFAULT_LEVELS) stringBuilder.AppendFormat("--levels {0} ", this.Levels);
-            if (this.windowSize != DEFAULT_WINDOW_SIZE) stringBuilder.AppendFormat("--winsize {0} ", this.WindowSize);
-            if (this.iterations != DEFAULT_ITERATIONS) stringBuilder.AppendFormat("--iters {0} ", this.Iterations);
-            if (this.pixelNeighborhood != DEFAULT_PIXEL_NEIGHBORHOOD) stringBuilder.AppendFormat("--poly-n {0} ", this.PixelNeighborhood);
-            if (this.smoothDerivativeStandardDeviation != DEFAULT_SMOOTH_DERIVATIVE_STANDARD_DEVIATION) stringBuilder.AppendFormat("--poly-s {0} ", this.SmoothDerivativeStandardDeviation);
-            if (this.FlowFilterType != DEFAULT_FLOW_FILTER_TYPE) stringBuilder.AppendFormat("-ff {0} ", this.FlowFilterType);
-            if (!string.IsNullOrWhiteSpace(this.VideoOutput)) stringBuilder.AppendFormat("-o \"{0}\" ", this.VideoOutput);
+            if(this.KeepSubregions) stringBuilder.Append("-k ");
+            if(this.SmoothMotion) stringBuilder.Append("-sm ");
+            if(this.FastPyramid) stringBuilder.Append("--fast-pyr ");
+            if(this.pyramidScale != DEFAULT_PYRAMID_SCALE) stringBuilder.AppendFormat("--pyr-scale {0} ", this.PyramidScale);
+            if(this.levels != DEFAULT_LEVELS) stringBuilder.AppendFormat("--levels {0} ", this.Levels);
+            if(this.windowSize != DEFAULT_WINDOW_SIZE) stringBuilder.AppendFormat("--winsize {0} ", this.WindowSize);
+            if(this.iterations != DEFAULT_ITERATIONS) stringBuilder.AppendFormat("--iters {0} ", this.Iterations);
+            if(this.pixelNeighborhood != DEFAULT_PIXEL_NEIGHBORHOOD) stringBuilder.AppendFormat("--poly-n {0} ", this.PixelNeighborhood);
+            if(this.smoothDerivativeStandardDeviation != DEFAULT_SMOOTH_DERIVATIVE_STANDARD_DEVIATION) stringBuilder.AppendFormat("--poly-s {0} ", this.SmoothDerivativeStandardDeviation);
+            if(this.FlowFilterType != DEFAULT_FLOW_FILTER_TYPE) stringBuilder.AppendFormat("-ff {0} ", this.FlowFilterType);
 
-            stringBuilder.AppendFormat("\"{0}\"", this.VideoInput);
+            if(!string.IsNullOrWhiteSpace(this.VideoOutput))
+            {
+                string videoOutputFile = string.Empty;
+
+                if(this.MultipleFiles)
+                {
+                    var format = new StringBuilder(Path.GetFileNameWithoutExtension(this.VideoOutput));
+                    format.Append("_{0:");
+                    for(int i = 0; i < this.videoInput.Count().ToString().Length; i++)
+                    {
+                        format.Append("0");
+                    }
+                    format.Append("}");
+                    format.Append(Path.GetExtension(this.VideoOutput));
+
+                    var newName = string.Format(format.ToString(), videoInputIndex + 1); // Since the index is zero based, we will add one to make the output more human readable.
+
+                    videoOutputFile = Path.Combine(Path.GetDirectoryName(this.VideoOutput), newName);
+                }
+                else
+                {
+                    videoOutputFile = this.VideoOutput;
+                }
+
+                stringBuilder.AppendFormat("-o \"{0}\" ", videoOutputFile);
+            }
+
+            if(this.VideoInput.Any())
+            {
+                stringBuilder.AppendFormat("\"{0}\"", this.VideoInput.ElementAt(videoInputIndex));
+            }
 
             return stringBuilder.ToString();
         }
@@ -570,6 +662,6 @@ namespace butterflow_ui
             return ToButterflowArguments();
         }
 
-        #endregion
+        #endregion Methods
     }
-}
+}

butterflow-ui/OptionsWindow.xaml

@@ -8,15 +8,26 @@
         xmlns:loc="clr-namespace:butterflow_ui.Localization"
         mc:Ignorable="d"
         Title="{x:Static loc:Localization.OptionsWindowTitle}" SizeToContent="WidthAndHeight">
+    <Window.Resources>
+        <butterflow_ui:InverseBoolVisibilityConverter x:Key="InverseBoolVisibilityConverter" />
+    </Window.Resources>
     <DockPanel Margin="32">
         <StackPanel>
             <WrapPanel>
                 <Label Content="{x:Static loc:Localization.LanguageLabel}" />
-                <ComboBox DisplayMemberPath="DisplayName" ItemsSource="{Binding SupportedLanguages, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:OptionsWindow}}, UpdateSourceTrigger=PropertyChanged}" SelectedItem="{Binding Source={x:Static settings:Settings.Default}, Path=Language}" />
+                <ComboBox DisplayMemberPath="DisplayName" ItemsSource="{Binding SupportedLanguages, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:OptionsWindow}}, UpdateSourceTrigger=PropertyChanged}" SelectedItem="{Binding Source={x:Static settings:Settings.Default}, Path=Language}" VerticalAlignment="Center" />
+            </WrapPanel>
+            <TextBlock Text="{x:Static loc:Localization.OptionsWindowLanguageChangeNotice}" Foreground="Gray" />
+            <WrapPanel>
+                <Label Content="{x:Static loc:Localization.UseDefaultDeviceLabel}" />
+                <CheckBox Name="chkUseDefaultDevice" IsChecked="{Binding Source={x:Static settings:Settings.Default}, Path=UseDefaultDevice}" VerticalAlignment="Center" />
+            </WrapPanel>
+            <WrapPanel Visibility="{Binding Source={x:Static settings:Settings.Default}, Path=UseDefaultDevice, Converter={StaticResource InverseBoolVisibilityConverter}}">
+                <Label Content="{x:Static loc:Localization.DeviceLabel}" />
+                <ComboBox Name="comboDeviceList" DisplayMemberPath="Value" ItemsSource="{Binding ButterflowWrapper.Devices, Mode=OneWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type butterflow_ui:OptionsWindow}}, UpdateSourceTrigger=PropertyChanged}" SelectedIndex="{Binding Source={x:Static settings:Settings.Default}, Path=Device}" VerticalAlignment="Center" />
             </WrapPanel>
-            <TextBlock Text="{x:Static loc:Localization.OptionsWindowLanguageChangeNotice}" />
             <Separator Margin="0,10" />
             <Button Name="btnSave" MaxWidth="45" Content="{x:Static loc:Localization.SaveLabel}" Click="btnSave_Click" />
         </StackPanel>
     </DockPanel>
-</Window>
+</Window>

butterflow-ui/OptionsWindow.xaml.cs

@@ -1,4 +1,5 @@
-using System;
+using butterflow_ui.Properties;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -21,6 +22,9 @@ namespace butterflow_ui
     {
         #region Properties
 
+        /// <summary> The butterflow wrapper used to call butterflow. </summary>
+        public ButterflowWrapper ButterflowWrapper { get; set; } = new ButterflowWrapper();
+
         /// <summary> Gets or sets the supported languages. </summary>
         /// <value> The supported languages. </value>
         public List<CultureInfo> SupportedLanguages { get; set; } = new List<CultureInfo>(new[]
@@ -33,17 +37,19 @@ namespace butterflow_ui
             CultureInfo.CreateSpecificCulture("zh-CN"),
         });
 
-        #endregion
+        #endregion Properties
 
         #region Constructors
 
         /// <summary> Default constructor. </summary>
         public OptionsWindow()
         {
+            this.ButterflowWrapper.GetDevices();
+            this.ButterflowWrapper.ButterflowExited += ButterflowWrapper_ButterflowExited;
             InitializeComponent();
         }
 
-        #endregion
+        #endregion Constructors
 
         #region Methods
 
@@ -57,6 +63,21 @@ namespace butterflow_ui
             this.Close();
         }
 
-        #endregion
+        /// <summary> Butterflow wrapper butterflow exited. </summary>
+        /// <param name="sender"> Source of the event. </param>
+        /// <param name="e">      The ButterflowExitArgs to process. </param>
+        private void ButterflowWrapper_ButterflowExited(object sender, ButterflowWrapper.ButterflowExitArgs e)
+        {
+            if(Settings.Default.Device >= 0)
+            {
+                this.comboDeviceList.Dispatcher.Invoke(() => this.comboDeviceList.SelectedIndex = Settings.Default.Device);
+            }
+            else
+            {
+                this.comboDeviceList.Dispatcher.Invoke(() => this.comboDeviceList.SelectedIndex = 0);
+            }
+        }
+
+        #endregion Methods
     }
-}
+}

butterflow-ui/Properties/AssemblyInfo.cs

@@ -1,6 +1,4 @@
 using System.Reflection;
-using System.Resources;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Windows;
 
@@ -30,7 +28,6 @@ using System.Windows;
 
 //[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
 
-
 [assembly: ThemeInfo(
     ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
                                      //(used if a resource is not found in the page,
@@ -40,7 +37,6 @@ using System.Windows;
                                               // app, or any theme specific resource dictionaries)
 )]
 
-
 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
@@ -51,5 +47,5 @@ using System.Windows;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.1.*")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.1.1.*")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

butterflow-ui/Properties/Settings.Designer.cs

@@ -12,7 +12,7 @@ namespace butterflow_ui.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.7.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.9.0.0")]
     public sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
@@ -34,5 +34,29 @@ namespace butterflow_ui.Properties {
                 this["Language"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("0")]
+        public int Device {
+            get {
+                return ((int)(this["Device"]));
+            }
+            set {
+                this["Device"] = value;
+            }
+        }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
+        public bool UseDefaultDevice {
+            get {
+                return ((bool)(this["UseDefaultDevice"]));
+            }
+            set {
+                this["UseDefaultDevice"] = value;
+            }
+        }
     }
 }

butterflow-ui/Properties/Settings.settings

@@ -5,5 +5,11 @@
     <Setting Name="Language" Type="System.Globalization.CultureInfo" Scope="User">
       <Value Profile="(Default)">en-US</Value>
     </Setting>
+    <Setting Name="Device" Type="System.Int32" Scope="User">
+      <Value Profile="(Default)">0</Value>
+    </Setting>
+    <Setting Name="UseDefaultDevice" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
   </Settings>
 </SettingsFile>

butterflow-ui/ThirdPartyCompiled/butterflow_commands.txt

@@ -1,81 +0,0 @@
-usage: butterflow [options] [video]
-
-Required arguments:
-  video                 Specify the input video
-
-General options:
-  -h, --help            Show this help message and exit
-  --version             Show program's version number and exit
-  --cache-dir CACHE_DIR
-                        Specify path to the cache directory
-  -c, --cache           Show cache information and exit
-  --rm-cache            Set to clear the cache and exit
-  -prb, --probe         Show media file information and exit
-  -v, --verbosity       Set to increase output verbosity
-  -q, --quiet           Set to suppress console output
-
-Device options:
-  -d, --show-devices    Show detected OpenCL devices and exit
-  -device DEVICE        Specify the preferred OpenCL device to use as an
-                        integer. Device numbers can be listed with the `-d`
-                        option. The device will be chosen automatically if
-                        nothing is specified.
-  -sw                   Set to force software rendering
-
-Display options:
-  -p, --show-preview    Set to show video preview
-  -e, --embed-info      Set to embed debugging info into the output video
-  -tt {light,dark,stroke}, --text-type {light,dark,stroke}
-                        Specify text type for embedded debugging info,
-                        (default: light)
-  -m, --mark-frames     Set to mark interpolated frames
-
-Video options:
-  -o OUTPUT_PATH, --output-path OUTPUT_PATH
-                        Specify path to the output video
-  -r PLAYBACK_RATE, --playback-rate PLAYBACK_RATE
-                        Specify the playback rate as an integer or a float.
-                        Fractional forms are acceptable, e.g., 24/1.001 is the
-                        same as 23.976. To use a multiple of the source
-                        video's rate, follow a number with `x`, e.g., "2x"
-                        will double the frame rate. The original rate will be
-                        used by default if nothing is specified.
-  -s SUBREGIONS, --subregions SUBREGIONS
-                        Specify rendering subregions in the form:
-                        "a=TIME,b=TIME,TARGET=VALUE" where TARGET is either
-                        `spd`, `dur`, `fps`. Valid TIME syntaxes are [hr:m:s],
-                        [m:s], [s], [s.xxx], or `end`, which signifies to the
-                        end the video. You can specify multiple subregions by
-                        separating them with a colon `:`. A special subregion
-                        format that conveniently describes the entire clip is
-                        available in the form: "full,TARGET=VALUE".
-  -k, --keep-subregions
-                        Set to render subregions that are not explicitly
-                        specified
-  -vs VIDEO_SCALE, --video-scale VIDEO_SCALE
-                        Specify output video size in the form: "WIDTH:HEIGHT"
-                        or by using a factor. To keep the aspect ratio only
-                        specify one component, either width or height, and set
-                        the other component to -1, (default: 1.0)
-  -l, --lossless        Set to use lossless encoding settings
-  -sm, --smooth-motion  Set to tune for smooth motion. This mode yields
-                        artifact-less frames by emphasizing blended frames
-                        over warping pixels.
-
-Muxing options:
-  -audio                Set to add the source audio to the output video
-
-Advanced options:
-  --fast-pyr            Set to use fast pyramids
-  --pyr-scale PYR_SCALE
-                        Specify pyramid scale factor, (default: 0.5)
-  --levels LEVELS       Specify number of pyramid layers, (default: 3)
-  --winsize WINSIZE     Specify averaging window size, (default: 25)
-  --iters ITERS         Specify number of iterations at each pyramid level,
-                        (default: 3)
-  --poly-n {5,7}        Specify size of pixel neighborhood, (default: 5)
-  --poly-s POLY_S       Specify standard deviation to smooth derivatives,
-                        (default: 1.1)
-  -ff {box,gaussian}, --flow-filter {box,gaussian}
-                        Specify which filter to use for optical flow
-                        estimation, (default: box)