Add Copy option to Audio Codec. Add Crop option to Arguments

FFMpegCore/FFMpeg/Arguments/CropArgument.cs

@@ -0,0 +1,22 @@
+using System.Drawing;
+
+namespace FFMpegCore.Arguments
+{
+    public class CropArgument : IArgument
+    {
+        public readonly Size? Size;
+        public readonly int Top;
+        public readonly int Left;   
+
+        public CropArgument(Size? size, int top, int left)
+        {
+            Size = size;
+            Top = top;
+            Left = left;
+        }
+
+        public CropArgument(int width, int height, int top, int left) : this(new Size(width, height), top, left) { }
+
+        public string Text => Size == null ? string.Empty : $"-vf crop={Size.Value.Width}:{Size.Value.Height}:{Left}:{Top}";
+    }
+}

FFMpegCore/FFMpeg/Enums/Enums.cs

@@ -27,6 +27,8 @@ public static class AudioCodec
         public static Codec Ac3 => FFMpeg.GetCodec("ac3");
         public static Codec Eac3 => FFMpeg.GetCodec("eac3");
         public static Codec LibMp3Lame => FFMpeg.GetCodec("libmp3lame");
+        public static Codec Copy => new Codec("copy", CodecType.Audio);
+
     }
 
     public static class VideoType

FFMpegCore/FFMpeg/FFMpegArgumentOptions.cs

@@ -16,7 +16,10 @@ internal FFMpegArgumentOptions() { }
         public FFMpegArgumentOptions WithVariableBitrate(int vbr) => WithArgument(new VariableBitRateArgument(vbr));
         public FFMpegArgumentOptions Resize(int width, int height) => WithArgument(new SizeArgument(width, height));
         public FFMpegArgumentOptions Resize(Size? size) => WithArgument(new SizeArgument(size));
-
+        public FFMpegArgumentOptions Crop(Size? size, int left, int top) => WithArgument(new CropArgument(size, top, left));
+        public FFMpegArgumentOptions Crop(int width, int height, int left, int top) => WithArgument(new CropArgument(new Size(width, height), top, left));
+        public FFMpegArgumentOptions Crop(Size? size) => WithArgument(new CropArgument(size, 0, 0));
+        public FFMpegArgumentOptions Crop(int width, int height) => WithArgument(new CropArgument(new Size(width, height), 0, 0));
         public FFMpegArgumentOptions WithBitStreamFilter(Channel channel, Filter filter) => WithArgument(new BitStreamFilterArgument(channel, filter));
         public FFMpegArgumentOptions WithConstantRateFactor(int crf) => WithArgument(new ConstantRateFactorArgument(crf));
         public FFMpegArgumentOptions CopyChannel(Channel channel = Channel.Both) => WithArgument(new CopyArgument(channel));

FFMpegCore/FFMpegCore.csproj

@@ -18,7 +18,7 @@
 
   <ItemGroup>
     <PackageReference Include="Instances" Version="3.0.0" />
-    <PackageReference Include="System.Text.Json" Version="7.0.3" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 
 </Project>

FFMpegCore/FFProbe/MediaAnalysis.cs

@@ -30,9 +30,12 @@ private MediaFormat ParseFormat(Format analysisFormat)
             };
         }
 
+        private string GetValue(string tagName, Dictionary<string, string>? tags, string defaultValue) =>
+            tags == null ? defaultValue : tags.TryGetValue(tagName, out var value) ? value : defaultValue;    
+
         private ChapterData ParseChapter(Chapter analysisChapter)
         {
-            var title = analysisChapter.Tags.FirstOrDefault(t => t.Key == "title").Value;
+            var title = GetValue("title", analysisChapter.Tags, "TitleValueNotSet");
             var start = MediaAnalysisUtils.ParseDuration(analysisChapter.StartTime);
             var end = MediaAnalysisUtils.ParseDuration(analysisChapter.EndTime);