From 8a764eccc7e0ca37d9df2e0da8694a8dbdb2bdcc Mon Sep 17 00:00:00 2001
From: AddyMills <74471839+AddyMills@users.noreply.github.com>
Date: Fri, 1 Mar 2024 07:08:16 -0600
Subject: [PATCH] Add MultiInputArgument

---
 .../FFMpeg/Arguments/MultiInputArgument.cs    | 47 +++++++++++++++++++
 FFMpegCore/FFMpeg/FFMpegArguments.cs          |  2 +
 FFMpegCore/FFMpegCore.csproj                  |  4 +-
 3 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 FFMpegCore/FFMpeg/Arguments/MultiInputArgument.cs

diff --git a/FFMpegCore/FFMpeg/Arguments/MultiInputArgument.cs b/FFMpegCore/FFMpeg/Arguments/MultiInputArgument.cs
new file mode 100644
index 0000000..e64d96a
--- /dev/null
+++ b/FFMpegCore/FFMpeg/Arguments/MultiInputArgument.cs
@@ -0,0 +1,47 @@
+namespace FFMpegCore.Arguments
+{
+    /// <summary>
+    /// Represents input parameters for multiple files
+    /// </summary>
+    public class MultiInputArgument : IInputArgument
+    {
+        public readonly bool VerifyExists;
+        public readonly string[] FilePaths;
+
+        public MultiInputArgument(bool verifyExists, params string[] filePaths)
+        {
+            VerifyExists = verifyExists;
+            FilePaths = filePaths;
+        }
+
+        public MultiInputArgument(string[] filePaths, bool verifyExists) : this(verifyExists, filePaths) { }
+
+        public void Pre()
+        {
+            if (VerifyExists)
+            {
+                var missingFiles = new List<string>();
+                foreach (var filePath in FilePaths)
+                {
+                    if (!File.Exists(filePath))
+                    {
+                        missingFiles.Add(filePath);
+                    }
+                }
+
+                if (missingFiles.Any())
+                {
+                    throw new FileNotFoundException($"The following input files were not found: {string.Join(", ", missingFiles)}");
+                }
+            }
+        }
+
+        public Task During(CancellationToken cancellationToken = default) => Task.CompletedTask;
+        public void Post() { }
+
+        /// <summary>
+        /// Generates a combined input argument text for all file paths
+        /// </summary>
+        public string Text => string.Join(" ", FilePaths.Select(filePath => $"-i \"{filePath}\""));
+    }
+}
diff --git a/FFMpegCore/FFMpeg/FFMpegArguments.cs b/FFMpegCore/FFMpeg/FFMpegArguments.cs
index cfc6d9d..cf57b84 100644
--- a/FFMpegCore/FFMpeg/FFMpegArguments.cs
+++ b/FFMpegCore/FFMpeg/FFMpegArguments.cs
@@ -21,6 +21,7 @@ private string GetText()
         public static FFMpegArguments FromConcatInput(IEnumerable<string> filePaths, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new ConcatArgument(filePaths), addArguments);
         public static FFMpegArguments FromDemuxConcatInput(IEnumerable<string> filePaths, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new DemuxConcatArgument(filePaths), addArguments);
         public static FFMpegArguments FromFileInput(string filePath, bool verifyExists = true, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new InputArgument(verifyExists, filePath), addArguments);
+        public static FFMpegArguments FromFileInput(string[] filePath, bool verifyExists = true, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new MultiInputArgument(verifyExists, filePath), addArguments);
         public static FFMpegArguments FromFileInput(FileInfo fileInfo, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new InputArgument(fileInfo.FullName, false), addArguments);
         public static FFMpegArguments FromUrlInput(Uri uri, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new InputArgument(uri.AbsoluteUri, false), addArguments);
         public static FFMpegArguments FromDeviceInput(string device, Action<FFMpegArgumentOptions>? addArguments = null) => new FFMpegArguments().WithInput(new InputDeviceArgument(device), addArguments);
@@ -35,6 +36,7 @@ public FFMpegArguments WithGlobalOptions(Action<FFMpegGlobalArguments> configure
         public FFMpegArguments AddConcatInput(IEnumerable<string> filePaths, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new ConcatArgument(filePaths), addArguments);
         public FFMpegArguments AddDemuxConcatInput(IEnumerable<string> filePaths, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new DemuxConcatArgument(filePaths), addArguments);
         public FFMpegArguments AddFileInput(string filePath, bool verifyExists = true, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new InputArgument(verifyExists, filePath), addArguments);
+        public FFMpegArguments AddFileInput(string[] filePath, bool verifyExists = true, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new MultiInputArgument(verifyExists, filePath), addArguments);
         public FFMpegArguments AddFileInput(FileInfo fileInfo, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new InputArgument(fileInfo.FullName, false), addArguments);
         public FFMpegArguments AddUrlInput(Uri uri, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new InputArgument(uri.AbsoluteUri, false), addArguments);
         public FFMpegArguments AddDeviceInput(string device, Action<FFMpegArgumentOptions>? addArguments = null) => WithInput(new InputDeviceArgument(device), addArguments);
diff --git a/FFMpegCore/FFMpegCore.csproj b/FFMpegCore/FFMpegCore.csproj
index ed3b71c..e6a45e9 100644
--- a/FFMpegCore/FFMpegCore.csproj
+++ b/FFMpegCore/FFMpegCore.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <IsPackable>true</IsPackable>
     <Description>A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications</Description>
-    <PackageVersion>5.1.0</PackageVersion>
+    <PackageVersion>5.1.1</PackageVersion>
     <PackageOutputPath>../nupkg</PackageOutputPath>
     <PackageReleaseNotes>
     </PackageReleaseNotes>
@@ -20,5 +20,7 @@
     <PackageReference Include="Instances" Version="3.0.0" />
     <PackageReference Include="System.Text.Json" Version="7.0.3" />
   </ItemGroup>
+  
+  
 
 </Project>