FFMpegCore: support configuration via ffmpeg.config.json

Former-commit-id: aed33a3d5c

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -6,6 +6,16 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Remove="ffmpeg.config.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="ffmpeg.config.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />

FFMpegCore.Test/ffmpeg.config.json

@@ -0,0 +1,3 @@
+{
+  "RootDirectory": ".//FFMPEG//bin"
+}

FFMpegCore/FFMPEG/FFBase.cs

@@ -1,17 +1,25 @@
-using System;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 
 namespace FFMpegCore.FFMPEG
 {
     public abstract class FFBase : IDisposable
     {
+        private static string _ConfigFile = "./ffmpeg.config.json";
+        private static string _DefaultRoot = ".\\FFMPEG\\bin";
         protected string ConfiguredRoot;
         protected Process Process;
 
         protected FFBase()
         {
-            ConfiguredRoot = ".\\FFMPEG\\bin";
+            ConfiguredRoot =
+                !File.Exists(_ConfigFile) ?
+                _DefaultRoot :
+                JsonConvert.DeserializeObject<Dictionary<string, string>>(File.ReadAllText(_ConfigFile))["RootDirectory"];
         }
 
         /// <summary>

README.md

@@ -12,6 +12,16 @@ Install-Package FFMpegCore
 
 A great way to use FFMpeg encoding when writing video applications, client-side and server-side. It has wrapper methods that allow conversion to all web formats: MP4, OGV, TS and methods of capturing screens from the videos.
 
+### Configuratoin
+
+The root directory for the ffmpeg binaries can be configured via the `ffmpeg.config.json` file.
+
+```json
+{
+  "RootDirectory": ".//FFMPEG//bin"
+}
+```
+
 ### FFProbe
 
 FFProbe is used to gather video information