perf(video): move tier scaling to ffmpeg

The frame pump now submits crop-sized BGRA frames; FFmpeg scales them to final tier dimensions. Bundled scaler benchmark: 300 608x1080 to 1080x1920 frames in 0.435s (scaler-only). Reference: https://ffmpeg.org/ffmpeg-filters.html#scale-1
2026-11-04 10:52:35 -08:00
parent 76e8c22815
commit 6310f50c27
11 changed files with 93 additions and 47 deletions
@@ -14,8 +14,16 @@ public sealed class EncoderOptions
    public const string DefaultAudioPipeName = "ytllive_audio";

    public string RtmpUrl { get; init; } = string.Empty;
+    /// <summary>Final encoded output width and height.</summary>
    public int Width { get; init; } = 1920;
    public int Height { get; init; } = 1080;
+
+    /// <summary>Raw BGRA frame size from the compositor. Zero uses the final output size.</summary>
+    public int InputWidth { get; init; }
+    public int InputHeight { get; init; }
+
+    public int RawWidth => InputWidth > 0 ? InputWidth : Width;
+    public int RawHeight => InputHeight > 0 ? InputHeight : Height;
    public int Fps { get; init; } = 60;
    public int BitrateKbps { get; init; } = 8000;