Video

VideoPlayer

Decodes a video file or URL and exposes the current frame as a Texture.

Codec	Containers	Notes
VP9	.webm, .mp4
AV1	.webm, .mp4	Best compression and quality
WebP	.webp	Supports transparency
H.264	.mp4	Windows only via Media Foundation, not recommended

var player = new VideoPlayer();
player.OnLoaded += () => Log.Info( $"Loaded {player.Width}x{player.Height}" );
player.Play( FileSystem.Mounted, "videos/intro.webm" );

Streaming over HTTP/HTTPS is also supported:

player.Play( "https://example.com/stream.webm" );

VideoPlayer.Texture updates each frame and can be used anywhere a Texture is accepted.

panel.Style.SetBackgroundImage( player.Texture );
material.Set( "Texture", player.Texture );

Audio settings live on the Audio accessor:

player.Audio.Volume = 0.5f;
player.Audio.Position = WorldPosition;
player.Audio.TargetMixer = Mixer.FindMixerByName( "Music" );

VideoWriter

Encodes a sequence of RGBA frames into a video file. Used internally by the screen recorder.

Codec	Containers	Notes
VP9	.webm, .mp4	Best compatbility
AV1	.webm, .mp4	Best compression and quality
WebP	.webp	Animated WebP, supports transparency

WebM supports transparency. The EncodingPreset on VideoWriter.Config controls speed vs quality: Fast for real-time recording, Balanced for general use, Quality for offline export.

var writer = new VideoWriter( "recordings/output.mp4", new VideoWriter.Config
{
    Width = 1920,
    Height = 1080,
    FrameRate = 60,
    Bitrate = 14,
    Codec = VideoWriter.Codec.AV1,
    Container = VideoWriter.Container.MP4,
    Preset = VideoWriter.EncodingPreset.Fast,
    AudioCodec = VideoWriter.AudioCodec.Opus,
} );

writer.AddFrame( rgbaBytes );

await writer.FinishAsync();