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A .NET library to convert and process all your video & audio files.

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MediaToolkit

MediaToolkit provides a straightforward interface for handling media data, making tasks such as converting, slicing and editing both audio and video completely effortless.

Under the hood, MediaToolkit is a .NET wrapper for FFmpeg; a free (LGPLv2.1) multimedia framework containing multiple audio and video codecs, supporting muxing, demuxing and transcoding tasks on many media formats.

Contents

  1. Features
  2. Get started!
  3. Samples
  4. Licensing

Features

  • Resolving metadata
  • Generating thumbnails from videos
  • Transcode audio & video into other formats using parameters such as:
    • Bit rate
    • Frame rate
    • Resolution
    • Aspect ratio
    • Seek position
    • Duration
    • Sample rate
    • Media format
  • Convert media to physical formats and standards such as:
    • Standards include: FILM, PAL & NTSC
    • Mediums include: DVD, DV, DV50, VCD & SVCD
  • Supports custom FFmpeg command line arguments
  • Raising progress events

Get started!

Install MediaToolkit from NuGet using the Package Manager Console with the following command (or search on NuGet MediaToolkit)

PM> Install-Package MediaToolkit

Samples

Grab thumbnail from a video

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_Image.jpg"};

using (var engine = new Engine())
{
    engine.GetMetadata(inputFile);
    
    // Saves the frame located on the 15th second of the video.
    var options = new ConversionOptions { Seek = TimeSpan.FromSeconds(15) };
    engine.GetThumbnail(inputFile, outputFile, options);
}

Retrieve metadata

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};

using (var engine = new Engine())
{
    engine.GetMetadata(inputFile);
}

Console.WriteLine(inputFile.Metadata.Duration);

Basic conversion

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_New_Video.mp4"};

using (var engine = new Engine())
{
    engine.Convert(inputFile, outputFile);
}

Convert Flash video to DVD

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_New_DVD.vob"};

var conversionOptions = new ConversionOptions
{
    Target = Target.DVD, 
    TargetStandard = TargetStandard.PAL
};

using (var engine = new Engine())
{
    engine.Convert(inputFile, outputFile, conversionOptions);
}

Transcoding options FLV to MP4

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_New_Video.mp4"};

var conversionOptions = new ConversionOptions
{
    MaxVideoDuration = TimeSpan.FromSeconds(30),
    VideoAspectRatio = VideoAspectRatio.R16_9,
    VideoSize = VideoSize.Hd1080,
    AudioSampleRate = AudioSampleRate.Hz44100
};

using (var engine = new Engine())
{
    engine.Convert(inputFile, outputFile, conversionOptions);
}

Cut video down to smaller length

var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_ExtractedVideo.flv"};

using (var engine = new Engine())
{
    engine.GetMetadata(inputFile);

    var options = new ConversionOptions();
    
    // This example will create a 25 second video, starting from the 
    // 30th second of the original video.
    //// First parameter requests the starting frame to cut the media from.
    //// Second parameter requests how long to cut the video.
    options.CutMedia(TimeSpan.FromSeconds(30), TimeSpan.FromSeconds(25));

    engine.Convert(inputFile, outputFile, options);
}

Subscribe to events

public void StartConverting()
{
    var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
    var outputFile = new MediaFile {Filename = @"C:\Path\To_Save_New_Video.mp4"};
    
    using (var engine = new Engine())
    {
        engine.ConvertProgressEvent += ConvertProgressEvent;
        engine.ConversionCompleteEvent += engine_ConversionCompleteEvent;
        engine.Convert(inputFile, outputFile);
    }
}

private void ConvertProgressEvent(object sender, ConvertProgressEventArgs e)
{
    Console.WriteLine("\n------------\nConverting...\n------------");
    Console.WriteLine("Bitrate: {0}", e.Bitrate);
    Console.WriteLine("Fps: {0}", e.Fps);
    Console.WriteLine("Frame: {0}", e.Frame);
    Console.WriteLine("ProcessedDuration: {0}", e.ProcessedDuration);
    Console.WriteLine("SizeKb: {0}", e.SizeKb);
    Console.WriteLine("TotalDuration: {0}\n", e.TotalDuration);
}

private void engine_ConversionCompleteEvent(object sender, ConversionCompleteEventArgs e)
{
    Console.WriteLine("\n------------\nConversion complete!\n------------");
    Console.WriteLine("Bitrate: {0}", e.Bitrate);
    Console.WriteLine("Fps: {0}", e.Fps);
    Console.WriteLine("Frame: {0}", e.Frame);
    Console.WriteLine("ProcessedDuration: {0}", e.ProcessedDuration);
    Console.WriteLine("SizeKb: {0}", e.SizeKb);
    Console.WriteLine("TotalDuration: {0}\n", e.TotalDuration);
}

Licensing

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