FFmpegArgs.Filters 1.4.3

FFmpegArgs

FFmpegArgs is a cli-wrapper library support generate argument for ffmpeg executable.
The standout feature that many cli-wrapper libraries don't have is the FFmpeg FilterGraph system.

Get it on NuGet Package

• Support file/url/pipe in/output.
• Works on most systems - if ffmpeg can execution.
• 130+ filters, add more in future
• 380+ filters auto-generate

Example

FFmpegArg ffmpegArg = new FFmpegArg().OverWriteOutput();

var green_video = ffmpegArg.AddVideoInput(new VideoFileInput(@"chromakey.mp4")
    .SsPosition(TimeSpan.FromSeconds(0.5)));
var background_video = ffmpegArg.AddVideoInput(new VideoFileInput(@"background.mp4")
    .SsPosition(TimeSpan.FromSeconds(1))
    .ToPosition(TimeSpan.FromSeconds(10)));

var color_keys = green_video.ImageMaps.First()
    .ColorKeyFilter()//ColorKey
        .Color(Color.FromArgb(101, 220, 8))
        .Similarity(0.25f)
        .Enable("between(t,0,10)").MapOut//ITimelineSupport
    .ScaleFilter().W("iw/3").H("ih/3").MapOut//Scale
    .SplitFilter(2).MapsOut;//Split

var overlay = color_keys.First()
    //overlay color_key on-center background_video
    .OverlayFilterOn(background_video.ImageMaps.First()).X("(W-w)/2").Y("(H-h)/2").MapOut;

ffmpegArg.AddOutput(new VideoFileOutput(@"out.mp4", overlay, background_video.AudioMaps.First()).Fps(24));
ffmpegArg.AddOutput(new VideoFileOutput(@"out2.mp4", color_keys.Last(), background_video.AudioMaps.First()).Fps(30));

var renderResult = ffmpegArg
    .Render(c => c
        .WithFFmpegBinaryPath("path to ffmpeg")
        .WithWorkingDirectory(Directory.GetCurrentDirectory()))
    .Execute();

For more example, see FFmpegArgs.Test

• Option/Flag not found?

We can extend for FFmpegArg, Filter, Input, Output by extension.

.SetOption("your option","option value")
.SetOptionRange("your option", val, min, max)
.SetFlag("your flag")

• Filter not found?

We can write new Filter class, so much example in FFmpegArgs.Filters

Pull request or request missing feature are welcome.

Recommend namespace for extension

using FFmpegArgs;
using FFmpegArgs.Cores;
using FFmpegArgs.Cores.Enums;
using FFmpegArgs.Cores.Exceptions;
using FFmpegArgs.Cores.Inputs;
using FFmpegArgs.Cores.Filters;
using FFmpegArgs.Cores.Maps;

using FFmpegArgs.Filters;
using FFmpegArgs.Filters.Exceptions;
using FFmpegArgs.Filters.Attributes;
using FFmpegArgs.Filters.Expressions;
using FFmpegArgs.Filters.FilterGraphs;

using FFmpegArgs.Filters.AudioFilters;
using FFmpegArgs.Filters.VideoFilters;
using FFmpegArgs.Filters.MultimediaFilters;
using FFmpegArgs.Filters.VideoSources;
using FFmpegArgs.Filters.AudioSources;
//using FFmpegArgs.Filters.Autogens;

using FFmpegArgs.Executes;
using FFmpegArgs.Inputs;
using FFmpegArgs.Outputs;

LICENCE

MIT