Merge pull request #245 from rosenbjerg/master

v.4.5.0

FFMpegCore.Test/ArgumentBuilderTest.cs

@@ -231,6 +231,13 @@ public void Builder_BuildString_FrameOutputCount()
             Assert.AreEqual("-i \"input.mp4\" -vframes 50 \"output.mp4\"", str);
         }
 
+        [TestMethod]
+        public void Builder_BuildString_VideoStreamNumber()
+        {
+            var str = FFMpegArguments.FromFileInput("input.mp4").OutputToFile("output.mp4", false, opt => opt.SelectStream(1)).Arguments;
+            Assert.AreEqual("-i \"input.mp4\" -map 0:1 \"output.mp4\"", str);
+        }
+
         [TestMethod]
         public void Builder_BuildString_FrameRate()
         {
@@ -317,6 +324,27 @@ public void Builder_BuildString_DrawtextFilter_Alt()
                 str);
         }
 
+        [TestMethod]
+        public void Builder_BuildString_SubtitleHardBurnFilter()
+        {
+            var str = FFMpegArguments
+                .FromFileInput("input.mp4")
+                .OutputToFile("output.mp4", false, opt => opt
+                    .WithVideoFilters(filterOptions => filterOptions
+                        .HardBurnSubtitle(SubtitleHardBurnOptions
+                            .Create(subtitlePath: "sample.srt")
+                            .SetCharacterEncoding("UTF-8")
+                            .SetOriginalSize(1366,768)
+                            .SetSubtitleIndex(0)
+                            .WithStyle(StyleOptions.Create()
+                                .WithParameter("FontName", "DejaVu Serif")
+                                .WithParameter("PrimaryColour", "&HAA00FF00")))))
+                .Arguments;
+
+            Assert.AreEqual("-i \"input.mp4\" -vf \"subtitles=sample.srt:charenc=UTF-8:original_size=1366x768:stream_index=0:force_style='FontName=DejaVu Serif\\,PrimaryColour=&HAA00FF00'\" \"output.mp4\"",
+                str);
+        }
+
         [TestMethod]
         public void Builder_BuildString_StartNumber()
         {

FFMpegCore.Test/AudioTest.cs

@@ -8,6 +8,7 @@
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
+using FFMpegCore.Extend;
 
 namespace FFMpegCore.Test
 {

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -83,6 +83,9 @@
     <None Update="Resources\mute.mp4">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Update="Resources\sample.srt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
   <ItemGroup>

FFMpegCore.Test/FFProbeTests.cs

@@ -63,6 +63,8 @@ public void Probe_Success()
             Assert.AreEqual("LC", info.PrimaryAudioStream.Profile);
             Assert.AreEqual(377351, info.PrimaryAudioStream.BitRate);
             Assert.AreEqual(48000, info.PrimaryAudioStream.SampleRateHz);
+            Assert.AreEqual("mp4a", info.PrimaryAudioStream.CodecTagString);
+            Assert.AreEqual("0x6134706d", info.PrimaryAudioStream.CodecTag);
             
             Assert.AreEqual(1471810, info.PrimaryVideoStream!.BitRate);
             Assert.AreEqual(16, info.PrimaryVideoStream.DisplayAspectRatio.Width);
@@ -76,6 +78,8 @@ public void Probe_Success()
             Assert.AreEqual("h264", info.PrimaryVideoStream.CodecName);
             Assert.AreEqual(8, info.PrimaryVideoStream.BitsPerRawSample);
             Assert.AreEqual("Main", info.PrimaryVideoStream.Profile);
+            Assert.AreEqual("avc1", info.PrimaryVideoStream.CodecTagString);
+            Assert.AreEqual("0x31637661", info.PrimaryVideoStream.CodecTag);
         }
         
         [TestMethod, Timeout(10000)]
@@ -100,5 +104,15 @@ public async Task Probe_Success_FromStream_Async()
             var info = await FFProbe.AnalyseAsync(stream);
             Assert.AreEqual(3, info.Duration.Seconds);
         }
+
+        [TestMethod, Timeout(10000)]
+        public async Task Probe_Success_Subtitle_Async()
+        {
+            var info = await FFProbe.AnalyseAsync(TestResources.SrtSubtitle);
+            Assert.IsNotNull(info.PrimarySubtitleStream);
+            Assert.AreEqual(1, info.SubtitleStreams.Count);
+            Assert.AreEqual(0, info.AudioStreams.Count);
+            Assert.AreEqual(0, info.VideoStreams.Count);
+        }
     }
 }

FFMpegCore.Test/Resources/TestResources.cs

@@ -20,5 +20,6 @@ public static class TestResources
         public static readonly string Mp3Audio = "./Resources/audio.mp3";
         public static readonly string PngImage = "./Resources/cover.png";
         public static readonly string ImageCollection = "./Resources/images";
+        public static readonly string SrtSubtitle = "./Resources/sample.srt";
     }
 }

FFMpegCore.Test/Resources/sample.srt

@@ -0,0 +1,12 @@
+1
+00:00:00,000 --> 00:00:01,500
+For www.forom.com
+
+2
+00:00:01,500 --> 00:00:02,500
+<i>Tonight's the night.</i>
+
+3
+00:00:03,000 --> 00:00:15,000
+<i>And it's going to happen
+again and again --</i>

FFMpegCore.Test/VideoTest.cs

@@ -655,7 +655,7 @@ public async Task Video_Cancel_CancellationToken_Async_With_Timeout()
                     .WithAudioCodec(AudioCodec.Aac)
                     .WithVideoCodec(VideoCodec.LibX264)
                     .WithSpeedPreset(Speed.VeryFast))
-                .CancellableThrough(cts.Token, 5000)
+                .CancellableThrough(cts.Token, 8000)
                 .ProcessAsynchronously(false);
 
             await Task.Delay(300);

FFMpegCore/Extend/KeyValuePairExtensions.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+
+namespace FFMpegCore.Extend
+{
+    internal static class KeyValuePairExtensions
+    {
+        /// <summary>
+        ///     Concat the two members of a <see cref="KeyValuePair{TKey,TValue}" />
+        /// </summary>
+        /// <param name="pair">Input object</param>
+        /// <param name="enclose">
+        ///     If true encloses the value part between quotes if contains an space character. If false use the
+        ///     value unmodified
+        /// </param>
+        /// <returns>The formatted string</returns>
+        public static string FormatArgumentPair(this KeyValuePair<string, string> pair, bool enclose)
+        {
+            var key = pair.Key;
+            var value = enclose ? pair.Value.EncloseIfContainsSpace() : pair.Value;
+
+            return $"{key}={value}";
+        }
+    }
+}

FFMpegCore/Extend/PcmAudioSampleWrapper.cs

@@ -1,27 +1,30 @@
-using FFMpegCore.Pipes;
+using System.IO;
-using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
+using FFMpegCore.Pipes;
 
-public class PcmAudioSampleWrapper : IAudioSample
+namespace FFMpegCore.Extend
 {
-    //This could actually be short or int, but copies would be inefficient.
+    public class PcmAudioSampleWrapper : IAudioSample
-    //Handling bytes lets the user decide on the conversion, and abstract the library
-    //from handling shorts, unsigned shorts, integers, unsigned integers and floats.
-    private readonly byte[] _sample;
-
-    public PcmAudioSampleWrapper(byte[] sample)
     {
-        _sample = sample;
+        //This could actually be short or int, but copies would be inefficient.
-    }
+        //Handling bytes lets the user decide on the conversion, and abstract the library
+        //from handling shorts, unsigned shorts, integers, unsigned integers and floats.
+        private readonly byte[] _sample;
 
-    public void Serialize(Stream stream)
+        public PcmAudioSampleWrapper(byte[] sample)
-    {
+        {
-        stream.Write(_sample, 0, _sample.Length);
+            _sample = sample;
-    }
+        }
 
-    public async Task SerializeAsync(Stream stream, CancellationToken token)
+        public void Serialize(Stream stream)
-    {
+        {
-        await stream.WriteAsync(_sample, 0, _sample.Length, token);
+            stream.Write(_sample, 0, _sample.Length);
+        }
+
+        public async Task SerializeAsync(Stream stream, CancellationToken token)
+        {
+            await stream.WriteAsync(_sample, 0, _sample.Length, token);
+        }
     }
 }

FFMpegCore/Extend/StringExtensions.cs

@@ -0,0 +1,15 @@
+namespace FFMpegCore.Extend
+{
+    internal static class StringExtensions
+    {
+        /// <summary>
+        ///     Enclose string between quotes if contains an space character
+        /// </summary>
+        /// <param name="input">The input</param>
+        /// <returns>The enclosed string</returns>
+        public static string EncloseIfContainsSpace(this string input)
+        {
+            return input.Contains(" ") ? $"'{input}'" : input;
+        }
+    }
+}

FFMpegCore/FFMpeg/Arguments/MapStreamArgument.cs

@@ -0,0 +1,19 @@
+namespace FFMpegCore.Arguments
+{
+    /// <summary>
+    /// Represents choice of video stream
+    /// </summary>
+    public class MapStreamArgument : IArgument
+    {
+        private readonly int _inputFileIndex;
+        private readonly int _streamIndex;
+
+        public MapStreamArgument(int streamIndex, int inputFileIndex)
+        {
+            _inputFileIndex = inputFileIndex;
+            _streamIndex = streamIndex;
+        }
+
+        public string Text => $"-map {_inputFileIndex}:{_streamIndex}";
+    }
+}

FFMpegCore/FFMpeg/Arguments/SubtitleHardBurnArgument.cs

@@ -0,0 +1,132 @@
+using FFMpegCore.Extend;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+
+namespace FFMpegCore.Arguments
+{
+    public class SubtitleHardBurnArgument : IVideoFilterArgument
+    {
+        private readonly SubtitleHardBurnOptions _subtitleHardBurnOptions;
+
+        public SubtitleHardBurnArgument(SubtitleHardBurnOptions subtitleHardBurnOptions)
+        {
+            _subtitleHardBurnOptions = subtitleHardBurnOptions;
+        }
+
+        public string Key => "subtitles";
+
+        public string Value => _subtitleHardBurnOptions.TextInternal;
+    }
+
+    public class SubtitleHardBurnOptions
+    {
+        private readonly string _subtitle;
+
+        public readonly Dictionary<string, string> Parameters = new Dictionary<string, string>();
+
+        /// <summary>
+        ///     Create a new <see cref="SubtitleHardBurnOptions"/> using a provided subtitle file or a video file
+        ///     containing one.
+        /// </summary> 
+        /// <param name="subtitlePath"></param>
+        /// <returns></returns>
+        /// <remarks>Only support .srt and .ass files, and subrip and ssa subtitle streams</remarks>
+        public static SubtitleHardBurnOptions Create(string subtitlePath)
+        {
+            return new SubtitleHardBurnOptions(subtitlePath);
+        }
+
+        private SubtitleHardBurnOptions(string subtitle)
+        {
+            _subtitle = subtitle;
+        }
+
+        /// <summary>
+        ///     Specify the size of the original video, the video for which the ASS file was composed.
+        /// </summary>
+        /// <param name="width"></param>
+        /// <param name="height"></param>
+        /// <returns></returns>
+        public SubtitleHardBurnOptions SetOriginalSize(int width, int height)
+        {
+            return WithParameter("original_size", $"{width}x{height}");
+        }
+
+        /// <summary>
+        ///     Specify the size of the original video, the video for which the ASS file was composed.
+        /// </summary>
+        /// <param name="size"></param>
+        /// <returns></returns>
+        public SubtitleHardBurnOptions SetOriginalSize(Size size)
+        {
+            return SetOriginalSize(size.Width, size.Height);
+        }
+
+        /// <summary>
+        ///     Set subtitles stream index.
+        /// </summary>
+        /// <param name="index"></param>
+        /// <returns></returns>
+        /// <remarks>
+        ///     Used when the provided subtitle is an stream of a video file (ex. .mkv) with multiple subtitles.
+        ///     Represent the index of the subtitle not the stream, them the first subtitle index is 0 and second is 1
+        /// </remarks>
+        public SubtitleHardBurnOptions SetSubtitleIndex(int index)
+        {
+            return WithParameter("stream_index", index.ToString());
+        }
+
+        /// <summary>
+        ///     Set subtitles input character encoding. Only useful if not UTF-8
+        /// </summary>
+        /// <param name="encode">Charset encoding</param>
+        /// <returns></returns>
+        public SubtitleHardBurnOptions SetCharacterEncoding(string encode)
+        {
+            return WithParameter("charenc", encode);
+        }
+
+        /// <summary>
+        ///     Override default style or script info parameters of the subtitles
+        /// </summary>
+        /// <param name="styleOptions"></param>
+        /// <returns></returns>
+        public SubtitleHardBurnOptions WithStyle(StyleOptions styleOptions)
+        {
+            return WithParameter("force_style", styleOptions.TextInternal);
+        }
+
+        public SubtitleHardBurnOptions WithParameter(string key, string value)
+        {
+            Parameters.Add(key, value);
+            return this;
+        }
+
+        internal string TextInternal => string.Join(":", new[] { _subtitle.EncloseIfContainsSpace() }.Concat(Parameters.Select(parameter => parameter.FormatArgumentPair(enclose: true))));
+    }
+
+    public class StyleOptions
+    {
+        public readonly Dictionary<string, string> Parameters = new Dictionary<string, string>();
+
+        public static StyleOptions Create()
+        {
+            return new StyleOptions();
+        }
+
+        /// <summary>
+        ///     Used to override default style or script info parameters of the subtitles. It accepts ASS style format
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        public StyleOptions WithParameter(string key, string value)
+        {
+            Parameters.Add(key, value);
+            return this;
+        }
+
+        internal string TextInternal => string.Join(",", Parameters.Select(parameter => parameter.FormatArgumentPair(enclose: false)));
+    }
+}

FFMpegCore/FFMpeg/Arguments/VideoFiltersArgument.cs

@@ -50,6 +50,7 @@ public class VideoFilterOptions
         public VideoFilterOptions Transpose(Transposition transposition) => WithArgument(new TransposeArgument(transposition));
         public VideoFilterOptions Mirror(Mirroring mirroring) => WithArgument(new SetMirroringArgument(mirroring));
         public VideoFilterOptions DrawText(DrawTextOptions drawTextOptions) => WithArgument(new DrawTextArgument(drawTextOptions));
+        public VideoFilterOptions HardBurnSubtitle(SubtitleHardBurnOptions subtitleHardBurnOptions) => WithArgument(new SubtitleHardBurnArgument(subtitleHardBurnOptions));
 
         private VideoFilterOptions WithArgument(IVideoFilterArgument argument)
         {

FFMpegCore/FFMpeg/FFMpeg.cs

@@ -20,15 +20,17 @@ public static class FFMpeg
         /// <param name="output">Output video file path</param>
         /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
         /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
         /// <returns>Bitmap with the requested snapshot.</returns>
-        public static bool Snapshot(string input, string output, Size? size = null, TimeSpan? captureTime = null)
+        public static bool Snapshot(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
         {
             if (Path.GetExtension(output) != FileExtension.Png)
                 output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
 
             var source = FFProbe.Analyse(input);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime);
+            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
-            
+
             return arguments
                 .OutputToFile(output, true, outputOptions)
                 .ProcessSynchronously();
@@ -40,15 +42,17 @@ public static bool Snapshot(string input, string output, Size? size = null, Time
         /// <param name="output">Output video file path</param>
         /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
         /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
         /// <returns>Bitmap with the requested snapshot.</returns>
-        public static async Task<bool> SnapshotAsync(string input, string output, Size? size = null, TimeSpan? captureTime = null)
+        public static async Task<bool> SnapshotAsync(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
         {
             if (Path.GetExtension(output) != FileExtension.Png)
                 output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
 
             var source = await FFProbe.AnalyseAsync(input);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime);
+            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
-            
+
             return await arguments
                 .OutputToFile(output, true, outputOptions)
                 .ProcessAsynchronously();
@@ -60,13 +64,15 @@ public static async Task<bool> SnapshotAsync(string input, string output, Size?
         /// <param name="input">Source video file.</param>
         /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
         /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
         /// <returns>Bitmap with the requested snapshot.</returns>
-        public static Bitmap Snapshot(string input, Size? size = null, TimeSpan? captureTime = null)
+        public static Bitmap Snapshot(string input, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
         {
             var source = FFProbe.Analyse(input);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime);
+            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
             using var ms = new MemoryStream();
-            
+
             arguments
                 .OutputToPipe(new StreamPipeSink(ms), options => outputOptions(options
                     .ForceFormat("rawvideo")))
@@ -82,13 +88,15 @@ public static Bitmap Snapshot(string input, Size? size = null, TimeSpan? capture
         /// <param name="input">Source video file.</param>
         /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
         /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
         /// <returns>Bitmap with the requested snapshot.</returns>
-        public static async Task<Bitmap> SnapshotAsync(string input, Size? size = null, TimeSpan? captureTime = null)
+        public static async Task<Bitmap> SnapshotAsync(string input, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
         {
             var source = await FFProbe.AnalyseAsync(input);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime);
+            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
             using var ms = new MemoryStream();
-            
+
             await arguments
                 .OutputToPipe(new StreamPipeSink(ms), options => outputOptions(options
                     .ForceFormat("rawvideo")))
@@ -98,15 +106,23 @@ await arguments
             return new Bitmap(ms);
         }
 
-        private static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) BuildSnapshotArguments(string input, IMediaAnalysis source, Size? size = null, TimeSpan? captureTime = null)
+        private static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) BuildSnapshotArguments(
+            string input,
+            IMediaAnalysis source,
+            Size? size = null,
+            TimeSpan? captureTime = null,
+            int? streamIndex = null,
+            int inputFileIndex = 0)
         {
             captureTime ??= TimeSpan.FromSeconds(source.Duration.TotalSeconds / 3);
             size = PrepareSnapshotSize(source, size);
+            streamIndex = streamIndex == null ? 0 : source.VideoStreams.FirstOrDefault(videoStream => videoStream.Index == streamIndex).Index;
 
             return (FFMpegArguments
                 .FromFileInput(input, false, options => options
-                    .Seek(captureTime)), 
+                    .Seek(captureTime)),
                 options => options
+                    .SelectStream((int)streamIndex, inputFileIndex)
                     .WithVideoCodec(VideoCodec.Png)
                     .WithFrameOutputCount(1)
                     .Resize(size));
@@ -116,11 +132,11 @@ private static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) Bu
         {
             if (wantedSize == null || (wantedSize.Value.Height <= 0 && wantedSize.Value.Width <= 0) || source.PrimaryVideoStream == null)
                 return null;
-            
+
             var currentSize = new Size(source.PrimaryVideoStream.Width, source.PrimaryVideoStream.Height);
             if (source.PrimaryVideoStream.Rotation == 90 || source.PrimaryVideoStream.Rotation == 180)
                 currentSize = new Size(source.PrimaryVideoStream.Height, source.PrimaryVideoStream.Width);
-            
+
             if (wantedSize.Value.Width != currentSize.Width || wantedSize.Value.Height != currentSize.Height)
             {
                 if (wantedSize.Value.Width <= 0 && wantedSize.Value.Height > 0)
@@ -231,10 +247,10 @@ public static bool PosterWithAudio(string image, string audio, string output)
             FFMpegHelper.ConversionSizeExceptionCheck(Image.FromFile(image));
 
             return FFMpegArguments
-                .FromFileInput(image)
+                .FromFileInput(image, false, options => options
+                    .Loop(1))
                 .AddFileInput(audio)
                 .OutputToFile(output, true, options => options
-                    .Loop(1)
                     .WithVideoCodec(VideoCodec.LibX264)
                     .WithConstantRateFactor(21)
                     .WithAudioBitrate(AudioQuality.Normal)

FFMpegCore/FFMpeg/FFMpegArgumentOptions.cs

@@ -8,7 +8,7 @@ namespace FFMpegCore
     public class FFMpegArgumentOptions : FFMpegArgumentsBase
     {
         internal FFMpegArgumentOptions() { }
-        
+
         public FFMpegArgumentOptions WithAudioCodec(Codec audioCodec) => WithArgument(new AudioCodecArgument(audioCodec));
         public FFMpegArgumentOptions WithAudioCodec(string audioCodec) => WithArgument(new AudioCodecArgument(audioCodec));
         public FFMpegArgumentOptions WithAudioBitrate(AudioQuality audioQuality) => WithArgument(new AudioBitrateArgument(audioQuality));
@@ -17,9 +17,9 @@ 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 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));
@@ -28,11 +28,11 @@ internal FFMpegArgumentOptions() { }
         public FFMpegArgumentOptions WithFastStart() => WithArgument(new FaststartArgument());
         public FFMpegArgumentOptions WithFrameOutputCount(int frames) => WithArgument(new FrameOutputCountArgument(frames));
         public FFMpegArgumentOptions WithHardwareAcceleration(HardwareAccelerationDevice hardwareAccelerationDevice = HardwareAccelerationDevice.Auto) => WithArgument(new HardwareAccelerationArgument(hardwareAccelerationDevice));
-        
+
         public FFMpegArgumentOptions UsingShortest(bool shortest = true) => WithArgument(new ShortestArgument(shortest));
         public FFMpegArgumentOptions UsingMultithreading(bool multithread) => WithArgument(new ThreadsArgument(multithread));
         public FFMpegArgumentOptions UsingThreads(int threads) => WithArgument(new ThreadsArgument(threads));
-        
+
         public FFMpegArgumentOptions WithVideoCodec(Codec videoCodec) => WithArgument(new VideoCodecArgument(videoCodec));
         public FFMpegArgumentOptions WithVideoCodec(string videoCodec) => WithArgument(new VideoCodecArgument(videoCodec));
         public FFMpegArgumentOptions WithVideoBitrate(int bitrate) => WithArgument(new VideoBitrateArgument(bitrate));
@@ -48,10 +48,11 @@ public FFMpegArgumentOptions WithVideoFilters(Action<VideoFilterOptions> videoFi
         public FFMpegArgumentOptions WithSpeedPreset(Speed speed) => WithArgument(new SpeedPresetArgument(speed));
         public FFMpegArgumentOptions WithStartNumber(int startNumber) => WithArgument(new StartNumberArgument(startNumber));
         public FFMpegArgumentOptions WithCustomArgument(string argument) => WithArgument(new CustomArgument(argument));
-        
+
         public FFMpegArgumentOptions Seek(TimeSpan? seekTo) => WithArgument(new SeekArgument(seekTo));
         public FFMpegArgumentOptions Loop(int times) => WithArgument(new LoopArgument(times));
         public FFMpegArgumentOptions OverwriteExisting() => WithArgument(new OverwriteArgument());
+        public FFMpegArgumentOptions SelectStream(int streamIndex, int inputFileIndex = 0) => WithArgument(new MapStreamArgument(streamIndex, inputFileIndex));
 
         public FFMpegArgumentOptions ForceFormat(ContainerFormat format) => WithArgument(new ForceFormatArgument(format));
         public FFMpegArgumentOptions ForceFormat(string format) => WithArgument(new ForceFormatArgument(format));

FFMpegCore/FFMpegCore.csproj

@@ -6,14 +6,15 @@
     <PackageProjectUrl>https://github.com/rosenbjerg/FFMpegCore</PackageProjectUrl>
     <Copyright></Copyright>
     <Description>A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications</Description>
-    <Version>3.0.0.0</Version>
+    <AssemblyVersion>4.0.0.0</AssemblyVersion>
-    <AssemblyVersion>3.0.0.0</AssemblyVersion>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
-    <FileVersion>3.0.0.0</FileVersion>
+    <PackageReleaseNotes>- Support for PCM audio samples (thanks to Namaneo)
-    <PackageReleaseNotes>- Cancellation token support (thanks patagonaa)
+- Support for subtitle streams in MediaAnalysis (thanks to alex6dj)
-- Support for setting stdout and stderr encoding for ffprobe (thanks CepheiSigma)
+- Support for subtitle hard burning (thanks to alex6dj)
-- Improved ffprobe exceptions</PackageReleaseNotes>
+- Additional codec* properties on MediaAnalysis object (thanks to GuyWithDogs)
+- SelectStream method for mapping/specifyíng specific streams from input files (thanks to Feodoros)</PackageReleaseNotes>
     <LangVersion>8</LangVersion>
-    <PackageVersion>4.4.0</PackageVersion>
+    <PackageVersion>4.5.0</PackageVersion>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <Authors>Malte Rosenbjerg, Vlad Jerca, Max Bagryantsev</Authors>
     <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing</PackageTags>
@@ -27,6 +28,7 @@
     <Content Include="FFMPEG\bin\**\*">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
+    <None Include="..\README.md" Pack="true" PackagePath="\" />
   </ItemGroup>
 
   <ItemGroup>

FFMpegCore/FFProbe/FFProbeAnalysis.cs

@@ -41,6 +41,12 @@ public class FFProbeStream : ITagsContainer
         [JsonPropertyName("codec_long_name")]
         public string CodecLongName { get; set; } = null!;
 
+        [JsonPropertyName("codec_tag")]
+        public string CodecTag { get; set; } = null!;
+
+        [JsonPropertyName("codec_tag_string")]
+        public string CodecTagString { get; set; } = null!;
+
         [JsonPropertyName("display_aspect_ratio")]
         public string DisplayAspectRatio { get; set; } = null!;
 

FFMpegCore/FFProbe/IMediaAnalysis.cs

@@ -9,7 +9,9 @@ public interface IMediaAnalysis
         MediaFormat Format { get; }
         AudioStream? PrimaryAudioStream { get; }
         VideoStream? PrimaryVideoStream { get; }
+        SubtitleStream? PrimarySubtitleStream { get; }
         List<VideoStream> VideoStreams { get; }
         List<AudioStream> AudioStreams { get; }
+        List<SubtitleStream> SubtitleStreams { get; }
     }
 }

FFMpegCore/FFProbe/MediaAnalysis.cs

@@ -12,8 +12,9 @@ internal MediaAnalysis(FFProbeAnalysis analysis)
             Format = ParseFormat(analysis.Format);
             VideoStreams = analysis.Streams.Where(stream => stream.CodecType == "video").Select(ParseVideoStream).ToList();
             AudioStreams = analysis.Streams.Where(stream => stream.CodecType == "audio").Select(ParseAudioStream).ToList();
+            SubtitleStreams = analysis.Streams.Where(stream => stream.CodecType == "subtitle").Select(ParseSubtitleStream).ToList();
         }
-
+        
         private MediaFormat ParseFormat(Format analysisFormat)
         {
             return new MediaFormat
@@ -36,12 +37,14 @@ private MediaFormat ParseFormat(Format analysisFormat)
         }.Max();
 
         public MediaFormat Format { get; }
+        
         public AudioStream? PrimaryAudioStream => AudioStreams.OrderBy(stream => stream.Index).FirstOrDefault();
-
         public VideoStream? PrimaryVideoStream => VideoStreams.OrderBy(stream => stream.Index).FirstOrDefault();
+        public SubtitleStream? PrimarySubtitleStream => SubtitleStreams.OrderBy(stream => stream.Index).FirstOrDefault();
 
         public List<VideoStream> VideoStreams { get; }
         public List<AudioStream> AudioStreams { get; }
+        public List<SubtitleStream> SubtitleStreams { get; }
 
         private VideoStream ParseVideoStream(FFProbeStream stream)
         {
@@ -53,6 +56,8 @@ private VideoStream ParseVideoStream(FFProbeStream stream)
                 BitsPerRawSample = !string.IsNullOrEmpty(stream.BitsPerRawSample) ? MediaAnalysisUtils.ParseIntInvariant(stream.BitsPerRawSample) : default,
                 CodecName = stream.CodecName,
                 CodecLongName = stream.CodecLongName,
+                CodecTag = stream.CodecTag,
+                CodecTagString = stream.CodecTagString,
                 DisplayAspectRatio = MediaAnalysisUtils.ParseRatioInt(stream.DisplayAspectRatio, ':'),
                 Duration = MediaAnalysisUtils.ParseDuration(stream),
                 FrameRate = MediaAnalysisUtils.DivideRatio(MediaAnalysisUtils.ParseRatioDouble(stream.FrameRate, '/')),
@@ -74,6 +79,8 @@ private AudioStream ParseAudioStream(FFProbeStream stream)
                 BitRate = !string.IsNullOrEmpty(stream.BitRate) ? MediaAnalysisUtils.ParseIntInvariant(stream.BitRate) : default,
                 CodecName = stream.CodecName,
                 CodecLongName = stream.CodecLongName,
+                CodecTag = stream.CodecTag,
+                CodecTagString = stream.CodecTagString,
                 Channels = stream.Channels ?? default,
                 ChannelLayout = stream.ChannelLayout,
                 Duration = MediaAnalysisUtils.ParseDuration(stream),
@@ -84,7 +91,19 @@ private AudioStream ParseAudioStream(FFProbeStream stream)
             };
         }
 
-
+        private SubtitleStream ParseSubtitleStream(FFProbeStream stream)
+        {
+            return new SubtitleStream
+            {
+                Index = stream.Index,
+                BitRate = !string.IsNullOrEmpty(stream.BitRate) ? MediaAnalysisUtils.ParseIntInvariant(stream.BitRate) : default,
+                CodecName = stream.CodecName,
+                CodecLongName = stream.CodecLongName,
+                Duration = MediaAnalysisUtils.ParseDuration(stream),
+                Language = stream.GetLanguage(),
+                Tags = stream.Tags,
+            };
+        }
     }
 
     public static class MediaAnalysisUtils

FFMpegCore/FFProbe/MediaStream.cs

@@ -10,6 +10,8 @@ public class MediaStream
         public int Index { get; internal set; }
         public string CodecName { get; internal set; } = null!;
         public string CodecLongName { get; internal set; } = null!;
+        public string CodecTagString { get; set; } = null!;
+        public string CodecTag { get; set; } = null!;
         public int BitRate { get; internal set; }
         public TimeSpan Duration { get; internal set; }
         public string? Language { get; internal set; }

FFMpegCore/FFProbe/SubtitleStream.cs

@@ -0,0 +1,7 @@
+namespace FFMpegCore
+{
+    public class SubtitleStream : MediaStream
+    {
+
+    }
+}

FFMpegCore/GlobalFFOptions.cs

@@ -8,27 +8,20 @@ namespace FFMpegCore
     public static class GlobalFFOptions
     {
         private static readonly string ConfigFile = "ffmpeg.config.json";
+        private static FFOptions? _current;
 
-        public static FFOptions Current { get; private set; }
+        public static FFOptions Current
-        static GlobalFFOptions()
         {
-            if (File.Exists(ConfigFile))
+            get { return _current ??= LoadFFOptions(); }
-            {
-                Current = JsonSerializer.Deserialize<FFOptions>(File.ReadAllText(ConfigFile))!;
-            }
-            else
-            {
-                Current = new FFOptions();
-            }
         }
-        
+
         public static void Configure(Action<FFOptions> optionsAction)
         {
             optionsAction?.Invoke(Current);
         }
         public static void Configure(FFOptions ffOptions)
         {
-            Current = ffOptions ?? throw new ArgumentNullException(nameof(ffOptions));
+            _current = ffOptions ?? throw new ArgumentNullException(nameof(ffOptions));
         }
         
 
@@ -48,5 +41,17 @@ private static string GetFFBinaryPath(string name, FFOptions ffOptions)
 
             return Path.Combine(ffOptions.BinaryFolder, ffName);
         }
+
+        private static FFOptions LoadFFOptions()
+        {
+            if (File.Exists(ConfigFile))
+            {
+                return JsonSerializer.Deserialize<FFOptions>(File.ReadAllText(ConfigFile))!;
+            }
+            else
+            {
+                return new FFOptions();
+            }
+        }
     }
 }

README.md

@@ -1,37 +1,29 @@
-# FFMpegCore 
+# [FFMpegCore](https://www.nuget.org/packages/FFMpegCore/) 
-[![CI](https://github.com/rosenbjerg/FFMpegCore/workflows/CI/badge.svg)](https://github.com/rosenbjerg/FFMpegCore/actions?query=workflow%3ACI)
 [![NuGet Badge](https://buildstats.info/nuget/FFMpegCore)](https://www.nuget.org/packages/FFMpegCore/)
 [![GitHub issues](https://img.shields.io/github/issues/rosenbjerg/FFMpegCore)](https://github.com/rosenbjerg/FFMpegCore/issues)
 [![GitHub stars](https://img.shields.io/github/stars/rosenbjerg/FFMpegCore)](https://github.com/rosenbjerg/FFMpegCore/stargazers)
 [![GitHub](https://img.shields.io/github/license/rosenbjerg/FFMpegCore)](https://github.com/rosenbjerg/FFMpegCore/blob/master/LICENSE)
+[![CI](https://github.com/rosenbjerg/FFMpegCore/workflows/CI/badge.svg)](https://github.com/rosenbjerg/FFMpegCore/actions?query=workflow%3ACI)
 
-# Setup
+A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications. Supports both synchronous and asynchronous calls
-
-#### NuGet:
-
-```
-Install-Package FFMpegCore
-```
-
-A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your C# applications. Support both synchronous and asynchronous use
 
 # API
 
 ## FFProbe
 
-FFProbe is used to gather media information:
+Use FFProbe to analyze media files:
 
 ```csharp
-var mediaInfo = FFProbe.Analyse(inputPath);
+var mediaInfo = await FFProbe.AnalyseAsync(inputPath);
 ```
 or 
 ```csharp
-var mediaInfo = await FFProbe.AnalyseAsync(inputPath);
+var mediaInfo = FFProbe.Analyse(inputPath);
 ```
 
 
 ## FFMpeg
-FFMpeg is used for converting your media files to web ready formats.
+Use FFMpeg to convert your media files.
 Easily build your FFMpeg arguments using the fluent argument builder:
 
 Convert input file to h264/aac scaled to 720p w/ faststart, for web playback
@@ -49,15 +41,6 @@ FFMpegArguments
     .ProcessSynchronously();
 ```
 
-Easily capture screens from your videos:
-```csharp
-// process the snapshot in-memory and use the Bitmap directly
-var bitmap = FFMpeg.Snapshot(inputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
-
-// or persists the image on the drive
-FFMpeg.Snapshot(inputPath, outputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
-```
-
 Convert to and/or from streams
 ```csharp
 await FFMpegArguments
@@ -68,7 +51,19 @@ await FFMpegArguments
     .ProcessAsynchronously();
 ```
 
-Join video parts into one single file:
+## Helper methods
+The provided helper methods makes it simple to perform common operations.
+
+### Easily capture snapshots from a video file:
+```csharp
+// process the snapshot in-memory and use the Bitmap directly
+var bitmap = FFMpeg.Snapshot(inputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
+
+// or persists the image on the drive
+FFMpeg.Snapshot(inputPath, outputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
+```
+
+### Join video parts into one single file:
 ```csharp
 FFMpeg.Join(@"..\joined_video.mp4",
     @"..\part1.mp4",
@@ -77,7 +72,7 @@ FFMpeg.Join(@"..\joined_video.mp4",
 );
 ```
 
-Join images into a video:
+### Join images into a video:
 ```csharp
 FFMpeg.JoinImageSequence(@"..\joined_video.mp4", frameRate: 1,
     ImageInfo.FromPath(@"..\1.png"),
@@ -86,22 +81,22 @@ FFMpeg.JoinImageSequence(@"..\joined_video.mp4", frameRate: 1,
 );
 ```
 
-Mute videos:
+### Mute the audio of a video file:
 ```csharp
 FFMpeg.Mute(inputPath, outputPath);
 ```
 
-Save audio track from video:
+### Extract the audio track from a video file:
 ```csharp
 FFMpeg.ExtractAudio(inputPath, outputPath);
 ```
 
-Add or replace audio track on video:
+### Add or replace the audio track of a video file:
 ```csharp
 FFMpeg.ReplaceAudio(inputPath, inputAudioPath, outputPath);
 ```
 
-Add poster image to audio file (good for youtube videos):
+### Combine an image with audio file, for youtube or similar platforms
 ```csharp
 FFMpeg.PosterWithAudio(inputPath, inputAudioPath, outputPath);
 // or
@@ -111,26 +106,27 @@ image.AddAudio(inputAudioPath, outputPath);
 
 Other available arguments could be found in `FFMpegCore.Arguments` namespace.
 
-### Input piping
+## Input piping
-With input piping it is possible to write video frames directly from program memory without saving them to jpeg or png and then passing path to input of ffmpeg. This feature also allows us to convert video on-the-fly while frames are being generated or received.
+With input piping it is possible to write video frames directly from program memory without saving them to jpeg or png and then passing path to input of ffmpeg. This feature also allows for converting video on-the-fly while frames are being generated or received.
 
-The `IPipeSource` interface is used as the source of data. It could be represented as encoded video stream or raw frames stream. Currently, the `IPipeSource` interface has single implementation, `RawVideoPipeSource` that is used for raw stream encoding.
+An object implementing the `IPipeSource` interface is used as the source of data. Currently, the `IPipeSource` interface has two implementations; `StreamPipeSource` for streams, and `RawVideoPipeSource` for raw video frames.
 
-For example:
+### Working with raw video frames
 
-Method that is generating bitmap frames:
+Method for generating bitmap frames:
 ```csharp
 IEnumerable<IVideoFrame> CreateFrames(int count)
 {
     for(int i = 0; i < count; i++)
     {
-        yield return GetNextFrame(); //method of generating new frames
+        yield return GetNextFrame(); //method that generates of receives the next frame
     }
 }
 ```
-Then create `ArgumentsContainer` with `InputPipeArgument`
+
+Then create a `RawVideoPipeSource` that utilises your video frame source
 ```csharp
-var videoFramesSource = new RawVideoPipeSource(CreateFrames(64)) //pass IEnumerable<IVideoFrame> or IEnumerator<IVideoFrame> to constructor of RawVideoPipeSource
+var videoFramesSource = new RawVideoPipeSource(CreateFrames(64))
 {
     FrameRate = 30 //set source frame rate
 };
@@ -141,52 +137,46 @@ await FFMpegArguments
     .ProcessAsynchronously();
 ```
 
-if you want to use `System.Drawing.Bitmap` as `IVideoFrame`, there is a `BitmapVideoFrameWrapper` wrapper class.
+If you want to use `System.Drawing.Bitmap`s as `IVideoFrame`s, a `BitmapVideoFrameWrapper` wrapper class is provided.
 
 
-## Binaries
+# Binaries
 
+## Installation
 If you prefer to manually download them, visit [ffbinaries](https://ffbinaries.com/downloads) or [zeranoe Windows builds](https://ffmpeg.zeranoe.com/builds/).
 
-#### Windows
+### Windows (using choco)
-
+command: `choco install ffmpeg -y`
-command: `choco install ffmpeg -Y`
 
 location: `C:\ProgramData\chocolatey\lib\ffmpeg\tools\ffmpeg\bin`
 
-#### Mac OSX
+### Mac OSX
-
 command: `brew install ffmpeg mono-libgdiplus`
 
 location: `/usr/local/bin`
 
-#### Ubuntu
+### Ubuntu
-
 command: `sudo apt-get install -y ffmpeg libgdiplus`
 
 location: `/usr/bin`
 
+
 ## Path Configuration
 
-#### Behavior
+### Option 1
-
-If you wish to support multiple client processor architectures, you can do so by creating a folder `x64` and `x86` in the `root` directory.
-Both folders should contain the binaries (`ffmpeg.exe` and `ffprobe.exe`) for build for the respective architectures. 
-
-By doing so, the library will attempt to use either `/root/{ARCH}/(ffmpeg|ffprobe).exe`.
-
-If these folders are not defined, it will try to find the binaries in `/root/(ffmpeg|ffprobe.exe)`
-
-#### Option 1
 
 The default value of an empty string (expecting ffmpeg to be found through PATH) can be overwritten via the `FFOptions` class:
 
-```c#
+```csharp
 // setting global options
 GlobalFFOptions.Configure(new FFOptions { BinaryFolder = "./bin", TemporaryFilesFolder = "/tmp" });
+
 // or
 GlobalFFOptions.Configure(options => options.BinaryFolder = "./bin");
 
+// on some systems the absolute path may be required, in which case 
+GlobalFFOptions.Configure(new FFOptions { BinaryFolder = Server.MapPath("./bin"), TemporaryFilesFolder = Server.MapPath("/tmp") });
+
 // or individual, per-run options
 await FFMpegArguments
     .FromFileInput(inputPath)
@@ -194,9 +184,9 @@ await FFMpegArguments
     .ProcessAsynchronously(true, new FFOptions { BinaryFolder = "./bin", TemporaryFilesFolder = "/tmp" });
 ```
 
-#### Option 2
+### Option 2
 
-The root and temp directory for the ffmpeg binaries can be configured via the `ffmpeg.config.json` file.
+The root and temp directory for the ffmpeg binaries can be configured via the `ffmpeg.config.json` file, which will be read on first use only.
 
 ```json
 {
@@ -205,22 +195,30 @@ The root and temp directory for the ffmpeg binaries can be configured via the `f
 }
 ```
 
+### Supporting both 32 and 64 bit processes
+If you wish to support multiple client processor architectures, you can do so by creating a folder `x64` and `x86` in the `root` directory.
+Both folders should contain the binaries (`ffmpeg.exe` and `ffprobe.exe`) for build for the respective architectures. 
+
+By doing so, the library will attempt to use either `/root/{ARCH}/(ffmpeg|ffprobe).exe`.
+
+If these folders are not defined, it will try to find the binaries in `/root/(ffmpeg|ffprobe.exe)`.
+
+(`.exe` is only appended on Windows)
+
+
 # Compatibility
- Some versions of FFMPEG might not have the same argument schema. The lib has been tested with version `3.3` to `4.2`
+Older versions of ffmpeg might not support all ffmpeg arguments available through this library. The library has been tested with version `3.3` to `4.2`
 
 
-## Contributors
+## Code contributors
+<a href="https://github.com/rosenbjerg/ffmpegcore/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=rosenbjerg/ffmpegcore" />
+</a>
 
-<a href="https://github.com/vladjerca"><img src="https://avatars.githubusercontent.com/u/6339681?v=4" title="vladjerca" width="80" height="80"></a>
+## Non-code contributors
-<a href="https://github.com/max619"><img src="https://avatars.githubusercontent.com/u/26447324?v=4" title="max619" width="80" height="80"></a>
-<a href="https://github.com/kyriakosio"><img src="https://avatars3.githubusercontent.com/u/6959989?v=4" title="kyriakosio" width="80" height="80"></a>
-<a href="https://github.com/winchesterag"><img src="https://avatars3.githubusercontent.com/u/47878681?v=4" title="winchesterag" width="80" height="80"></a>
-<a href="https://github.com/devlev"><img src="https://avatars3.githubusercontent.com/u/2109995?v=4" title="devlev" width="80" height="80"></a>
-<a href="https://github.com/tugrulelmas"><img src="https://avatars3.githubusercontent.com/u/3829187?v=4" title="tugrulelmas" width="80" height="80"></a>
-<a href="https://github.com/rosenbjerg"><img src="https://avatars3.githubusercontent.com/u/11181960?v=4" title="rosenbjerg" width="80" height="80"></a>
-<a href="https://github.com/WeihanLi"><img src="https://avatars3.githubusercontent.com/u/7604648?v=4" title="weihanli" width="80" height="80"></a>
 <a href="https://github.com/tiesont"><img src="https://avatars3.githubusercontent.com/u/420293?v=4" title="tiesont" width="80" height="80"></a>
 
+
 ### License
 
 Copyright © 2021