Initial audio support

shaders/audio-vu-meter/shader.json

@@ -0,0 +1,76 @@
+{
+  "id": "audio-vu-meter",
+  "name": "Audio VU Meter",
+  "description": "Draws stereo audio level meters from the runtime audio analysis data.",
+  "category": "Utility",
+  "entryPoint": "shadeVideo",
+  "parameters": [
+    {
+      "id": "meterPosition",
+      "label": "Position",
+      "type": "vec2",
+      "default": [0.08, 0.82],
+      "min": [0.0, 0.0],
+      "max": [1.0, 1.0],
+      "step": [0.01, 0.01]
+    },
+    {
+      "id": "meterScale",
+      "label": "Scale",
+      "type": "float",
+      "default": 0.35,
+      "min": 0.1,
+      "max": 1.0,
+      "step": 0.01
+    },
+    {
+      "id": "meterOpacity",
+      "label": "Opacity",
+      "type": "float",
+      "default": 0.9,
+      "min": 0.0,
+      "max": 1.0,
+      "step": 0.01
+    },
+    {
+      "id": "noiseGate",
+      "label": "Noise Gate",
+      "type": "float",
+      "default": 0.03,
+      "min": 0.0,
+      "max": 0.5,
+      "step": 0.01
+    },
+    {
+      "id": "meterColor",
+      "label": "Meter Color",
+      "type": "color",
+      "default": [0.2, 1.0, 0.55, 1.0]
+    },
+    {
+      "id": "peakColor",
+      "label": "Peak Color",
+      "type": "color",
+      "default": [1.0, 0.85, 0.2, 1.0]
+    },
+    {
+      "id": "backgroundOpacity",
+      "label": "Background",
+      "type": "float",
+      "default": 0.45,
+      "min": 0.0,
+      "max": 1.0,
+      "step": 0.01
+    },
+    {
+      "id": "orientation",
+      "label": "Orientation",
+      "type": "enum",
+      "default": "horizontal",
+      "options": [
+        { "value": "horizontal", "label": "Horizontal" },
+        { "value": "vertical", "label": "Vertical" }
+      ]
+    }
+  ]
+}