FFMpegCore/README.md

# FFMpegCore 
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# Setup

#### NuGet:

```
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.

## Binaries

If you prefer to manually download them, visit [ffbinaries](https://ffbinaries.com/downloads).

#### Windows

command: `choco install ffmpeg -Y`

location: `C:\ProgramData\chocolatey\lib\ffmpeg\tools\ffmpeg\bin`

#### Mac OSX

command: `brew install ffmpeg mono-libgdiplus`

location: `/usr/local/bin`

#### Ubuntu

command: `sudo apt-get install -y ffmpeg libgdiplus`

location: `/usr/bin`

## Path Configuration

#### Behavior

If you are building a client app, and you don't know the processor achitecture.

By creating a folder `x64` and `x86` in the `root` directory, the lib will automatically try 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 (`\\FFMPEG\\bin`) can be overwritten via the `FFMpegOptions` class:

```c#
public Startup() 
{
    FFMpegOptions.Configure(new FFMpegOptions { RootDirectory = "./bin" });
}
```

#### Option 2

The root directory for the ffmpeg binaries can be configured via the `ffmpeg.config.json` file.

```json
{
  "RootDirectory": "./bin"
}
```

# Compatibility
 Some versions of FFMPEG might not have the same argument schema. The lib has been tested with version `3.3` to `4.1`

 # API

## FFProbe

FFProbe is used to gather video information
```csharp
static void Main(string[] args)
{
    string inputFile = "G:\\input.mp4";

    // loaded from configuration
    var video = new VideoInfo(inputFile);

    string output = video.ToString();

    Console.WriteLine(output);
}
```

Sample output:
```csharp
Video Path : G:\input.mp4
Video Root : G:\\
Video Name: input.mp4
Video Extension : .mp4
Video Duration : 00:00:09
Audio Format : none
Video Format : h264
Aspect Ratio : 16:9
Framerate : 30fps
Resolution : 1280x720
Size : 2.88 Mb
```

## FFMpeg
Convert your video files to web ready formats:

```csharp
static void Main(string[] args)
{
    string inputFile = "input_path_goes_here";
    var encoder = new FFMpeg();
    FileInfo outputFile = new FileInfo("output_path_goes_here");

    var video = VideoInfo.FromPath(inputFile);

    // easily track conversion progress
    encoder.OnProgress += (percentage) => Console.WriteLine("Progress {0}%", percentage);

    // MP4 conversion
    encoder.Convert(
        video,
        outputFile,
        VideoType.Mp4,
        Speed.UltraFast,
        VideoSize.Original,
        AudioQuality.Hd,
        true
    );
    // OGV conversion
    encoder.Convert(
        video,
        outputFile,
        VideoType.Ogv,
        Speed.UltraFast,
        VideoSize.Original,
        AudioQuality.Hd,
        true
    );
    // TS conversion
    encoder.Convert(
        video,
        outputFile,
        VideoType.Ts
    );
}
```

Easily capture screens from your videos:
```csharp
static void Main(string[] args)
{
    string inputFile = "input_path_goes_here";
    FileInfo output = new FileInfo("output_path_goes_here");

    var video = VideoInfo.FromPath(inputFile);

    new FFMpeg()
        .Snapshot(
            video,
            output,
            new Size(200, 400),
            TimeSpan.FromMinutes(1)
        );
}
```

Join video parts:
```csharp
static void Main(string[] args)
{
    FFMpeg encoder = new FFMpeg();

    encoder.Join(
        new FileInfo(@"..\joined_video.mp4"),
        VideoInfo.FromPath(@"..\part1.mp4"),
        VideoInfo.FromPath(@"..\part2.mp4"),
        VideoInfo.FromPath(@"..\part3.mp4")
    );
}
```

Join image sequences:
```csharp
static void Main(string[] args)
{
    FFMpeg encoder = new FFMpeg();

    encoder.JoinImageSequence(
        new FileInfo(@"..\joined_video.mp4"),
        1, // FPS
        ImageInfo.FromPath(@"..\1.png"),
        ImageInfo.FromPath(@"..\2.png"),
        ImageInfo.FromPath(@"..\3.png")
    );
}
```

Strip audio track from videos:
```csharp
static void Main(string[] args)
{
    string inputFile = "input_path_goes_here",
       outputFile = "output_path_goes_here";

    new FFMpeg()
        .Mute(
            VideoInfo.FromPath(inputFile),
            new FileInfo(outputFile)
        );
}
```

Save audio track from video:
```csharp
static void Main(string[] args)
{
    string inputVideoFile = "input_path_goes_here",
       outputAudioFile = "output_path_goes_here";

    new FFMpeg()
        .ExtractAudio(
            VideoInfo.FromPath(inputVideoFile),
            new FileInfo(outputAudioFile)
        );
}
```

Add audio track to video:
```csharp
static void Main(string[] args)
{
    string inputVideoFile = "input_path_goes_here",
       inputAudioFile = "input_path_goes_here",
       outputVideoFile = "output_path_goes_here";

    FFMpeg encoder = new FFMpeg();

    new FFMpeg()
        .ReplaceAudio(
            VideoInfo.FromPath(inputVideoFile),
            new FileInfo(inputAudioFile),
            new FileInfo(outputVideoFile)
        );
}
```

Add poster image to audio file (good for youtube videos):
```csharp
static void Main(string[] args)
{
    string inputImageFile = "input_path_goes_here",
       inputAudioFile = "input_path_goes_here",
       outputVideoFile = "output_path_goes_here";

    FFMpeg encoder = new FFMpeg();

    ((Bitmap)Image.FromFile(inputImageFile))
        .AddAudio(
            new FileInfo(inputAudioFile),
            new FileInfo(outputVideoFile)
        );

    /* OR */

    new FFMpeg()
        .PosterWithAudio(
            inputImageFile,
            new FileInfo(inputAudioFile),
            new FileInfo(outputVideoFile)
        );
}
```

Control over the 'FFmpeg' process doing the job:
```csharp
static void Main(string[] args)
{
    string inputVideoFile = "input_path_goes_here",
       outputVideoFile = "input_path_goes_here";

    FFMpeg encoder = new FFMpeg();

    // start the conversion process
    Task.Run(() => {
        encoder.Convert(new VideoInfo(inputVideoFile), new FileInfo(outputVideoFile));
    });

    // stop encoding after 2 seconds (only for example purposes)
    Thread.Sleep(2000);
    encoder.Stop();
}
```
### Enums

Video Size enumeration:

```csharp
public enum VideoSize
{
    HD,
    FullHD,
    ED,
    LD,
    Original
}
```

Speed enumeration:

```csharp
public enum Speed
{
    VerySlow,
    Slower,
    Slow,
    Medium,
    Fast,
    Faster,
    VeryFast,
    SuperFast,
    UltraFast
}
```
Audio codecs enumeration:

```csharp
public enum AudioCodec
{
        Aac,
        LibVorbis
}
```

Audio quality presets enumeration:

```csharp
public enum AudioQuality
{
        Ultra = 384,
        Hd = 192,
        Normal = 128,
        Low = 64
}
```

Video codecs enumeration:

```csharp
public enum VideoCodec
{
        LibX264,
        LibVpx,
        LibTheora,
        Png,
        MpegTs
}
```
### ArgumentBuilder
Custom video converting presets could be created with help of `ArgumentsContainer` class:
```csharp
var container = new ArgumentsContainer();
container.Add(new VideoCodecArgument(VideoCodec.LibX264));
container.Add(new ScaleArgument(VideoSize.Hd));

var ffmpeg = new FFMpeg();
var result = ffmpeg.Convert(container, new FileInfo("input.mp4"), new FileInfo("output.mp4"));
```

Other availible arguments could be found in `FFMpegCore.FFMPEG.Arguments` namespace.

If you need to create your custom argument, you just need to create new class, that is inherited from `Argument`, `Argument<T>` or `Argument<T1, T2>`
For example:
```csharp
public class OverrideArgument : Argument
{
    public override string GetStringValue()
    {
        return "-y";
    }
}
```
## Contributors

<a href="https://github.com/vladjerca"><img src="https://avatars.githubusercontent.com/u/6339681?v=4" title="vladjerca" width="80" height="80"></a>
<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>

### License

Copyright © 2018, [Vlad Jerca](https://github.com/vladjerca).
Released under the [MIT license](https://github.com/jonschlinkert/github-contributors/blob/master/LICENSE).