There's breaking changes on the way, when MediaToolkit was initially developed it was meant to act as facade over the FFmpeg library, providing a simplified interface to perform the most basic tasks of converting media.
Since then, there's been demands for new features, demands for updates of the original FFmpeg executables, demands for custom code executions and with each new feature the original code base has been getting more bloated and difficult to maintain, the Engine class has turned into a god class essentially and there's no easy way for clients to plugin their own arguments without modifying the original code base, the new update aims to resolve all of that.
Changes going forwards:
- Conversion methods have been extracted out into separate classes deriving from
IInstructionBuilder, so whether if you want to crop a video you would use theCropVideoInstructionBuilder, if you wanted to extract a thumbnail,ExtractThumbnailInstructionBuilder, etc. You can also obviously implement your own instructions as long as it implementsIInstructionBuilder. - Added logging functionality to log traces of the raw output received by the FFmpeg process.
- Added
FFprobefor querying the Metadata of media files. MediaFileclasses will no longer be used, the reason for this change is because it relies on FFmpeg for querying metadata and it's difficult to make it work reliably across different types of files as the output from FFmpeg is difficult to parse and it doesn't really expose all that much information anyway. What's recommended is usingFFprobeinstead.
You can track its progress in the MajorRefactoring branch. You're welcome to get involved, if you see opportunities to break dependencies without adding great deals of complexity, let me know.
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.
- Resolving metadata
- Generating thumbnails from videos
- Transcode audio & video into other formats using parameters such as:
Bit rateFrame rateResolutionAspect ratioSeek positionDurationSample rateMedia format
- Convert media to physical formats and standards such as:
- Standards include:
FILM,PAL&NTSC - Mediums include:
DVD,DV,DV50,VCD&SVCD
- Standards include:
- Supports custom FFmpeg command line arguments
- Raising progress events
Install MediaToolkit from NuGet using the Package Manager Console with the following command (or search on NuGet MediaToolkit)
PM> Install-Package MediaToolkit
- Retrieve metadata
- Perform basic video conversions
- [Grab thumbnail] (#grab-thumbnail-from-a-video)
- Convert from FLV to DVD
- Convert FLV to MP4 using various transcoding options
- [Cut / split video] (#cut-video-down-to-smaller-length)
- Subscribing to events
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);
}
var inputFile = new MediaFile {Filename = @"C:\Path\To_Video.flv"};
using (var engine = new Engine())
{
engine.GetMetadata(inputFile);
}
Console.WriteLine(inputFile.Metadata.Duration);
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);
}
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);
}
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);
}
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);
}
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);
}
- MediaToolkit is licensed under the MIT license
- MediaToolkit uses FFmpeg, a multimedia framework which is licensed under the LGPLv2.1 license, its source can be downloaded from here
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