wavyte 0.2.1

Programmatic video composition and rendering engine in Rust (CPU backend, ffmpeg MP4 encoding)
Documentation 
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{
  "fps": { "num": 30, "den": 1 },
  "canvas": { "width": 640, "height": 360 },
  "duration": 20,
  "assets": {
    "t0": {
      "Text": {
        "text": "hello",
        "font_source": "assets/PlayfairDisplay.ttf",
        "size_px": 48.0,
        "max_width_px": null,
        "color_rgba8": [255, 255, 255, 255]
      }
    }
  },
  "tracks": [
    {
      "name": "main",
      "z_base": 0,
      "clips": [
        {
          "id": "c0",
          "asset": "t0",
          "range": { "start": 0, "end": 20 },
          "props": {
            "transform": {
              "Keyframes": {
                "keys": [
                  { "frame": 0, "value": { "translate": { "x": 0.0, "y": 0.0 }, "rotation_rad": 0.0, "scale": { "x": 1.0, "y": 1.0 }, "anchor": { "x": 0.0, "y": 0.0 } }, "ease": "Linear" }
                ],
                "mode": "Hold",
                "default": null
              }
            },
            "opacity": {
              "Keyframes": {
                "keys": [
                  { "frame": 0, "value": 0.0, "ease": "Linear" },
                  { "frame": 10, "value": 1.0, "ease": "Linear" }
                ],
                "mode": "Linear",
                "default": null
              }
            },
            "blend": "Normal"
          },
          "z_offset": 0,
          "effects": [],
          "transition_in": { "kind": "crossfade", "duration_frames": 3, "ease": "Linear" },
          "transition_out": { "kind": "crossfade", "duration_frames": 3, "ease": "Linear" }
        }
      ]
    }
  ],
  "seed": 1
}