Codex
107 lines
5.2 KiB
JSON
107 lines
5.2 KiB
JSON
{
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"$schema": "https://json-schema.org/draft/2020-12/schema",
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"$id": "https://micarrsim.local/schemas/scene.schema.json",
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"title": "micarrsim acoustic scene",
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"type": "object",
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"additionalProperties": false,
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"required": ["schemaVersion", "kind", "id", "name", "units", "sampleRate", "duration", "speedOfSound", "seed", "mix", "sources"],
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"properties": {
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"schemaVersion": { "const": "1.0.0" }, "kind": { "const": "micarrsim.scene" },
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"id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]*$" },
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"name": { "type": "string", "minLength": 1, "maxLength": 120 },
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"description": { "type": "string", "maxLength": 1000 }, "units": { "const": "m" },
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"sampleRate": { "type": "integer", "minimum": 8000, "maximum": 192000 },
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"duration": { "type": "number", "exclusiveMinimum": 0, "maximum": 300 },
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"speedOfSound": { "type": "number", "minimum": 250, "maximum": 400 },
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"seed": { "type": "integer", "minimum": 0, "maximum": 4294967295 },
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"mix": {
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"type": "object", "additionalProperties": false, "required": ["normalization", "targetPeak"],
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"properties": {
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"normalization": { "enum": ["none", "peak"] },
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"targetPeak": { "type": "number", "exclusiveMinimum": 0, "maximum": 1 }
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}
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},
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"image": { "$ref": "#/$defs/image" },
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"assets": { "type": "array", "maxItems": 128, "items": { "$ref": "#/$defs/asset" } },
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"sources": { "type": "array", "minItems": 1, "maxItems": 32, "items": { "$ref": "#/$defs/source" } },
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"ambient": { "type": "array", "maxItems": 8, "items": { "$ref": "#/$defs/ambient" } }
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},
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"$defs": {
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"position": {
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"type": "array", "prefixItems": [{ "type": "number" }, { "type": "number" }, { "type": "number" }],
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"items": false, "minItems": 3, "maxItems": 3
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},
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"trajectoryKeyframe": {
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"type": "object", "additionalProperties": false, "required": ["time", "position"],
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"properties": {
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"time": { "type": "number", "minimum": 0 },
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"position": { "$ref": "#/$defs/position" }
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}
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},
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"image": {
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"type": "object", "additionalProperties": false,
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"required": ["assetId", "widthPixels", "heightPixels", "plane"],
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"properties": {
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"assetId": { "type": "string", "minLength": 1 },
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"widthPixels": { "type": "integer", "minimum": 1, "maximum": 32768 },
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"heightPixels": { "type": "integer", "minimum": 1, "maximum": 32768 },
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"plane": {
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"type": "object", "additionalProperties": false,
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"required": ["z", "xMin", "xMax", "yMin", "yMax"],
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"properties": {
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"z": { "type": "number", "exclusiveMinimum": 0 },
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"xMin": { "type": "number" }, "xMax": { "type": "number" },
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"yMin": { "type": "number" }, "yMax": { "type": "number" }
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}
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}
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}
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},
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"asset": {
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"type": "object", "additionalProperties": false, "required": ["id", "kind", "fileName", "mimeType"],
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"properties": {
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"id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]*$" },
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"kind": { "enum": ["audio", "image"] }, "fileName": { "type": "string", "minLength": 1, "maxLength": 255 },
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"mimeType": { "type": "string", "minLength": 3, "maxLength": 100 },
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"sha256": { "type": "string", "pattern": "^[a-f0-9]{64}$" }
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}
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},
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"signal": {
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"oneOf": [
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{ "type": "object", "additionalProperties": false, "required": ["type", "frequency"], "properties": {
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"type": { "const": "tone" }, "frequency": { "type": "number", "exclusiveMinimum": 0 },
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"phaseDeg": { "type": "number", "minimum": -360, "maximum": 360 }
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}},
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{ "type": "object", "additionalProperties": false, "required": ["type", "color"], "properties": {
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"type": { "const": "noise" }, "color": { "enum": ["white", "pink"] },
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"seedOffset": { "type": "integer", "minimum": 0, "maximum": 4294967295 }
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}},
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{ "type": "object", "additionalProperties": false, "required": ["type", "assetId"], "properties": {
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"type": { "const": "asset" }, "assetId": { "type": "string", "minLength": 1 },
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"channel": { "type": "integer", "minimum": 0, "maximum": 255 }, "loop": { "type": "boolean" }
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}}
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]
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},
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"source": {
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"type": "object", "additionalProperties": false,
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"required": ["id", "name", "position", "gainDb", "startTime", "duration", "signal"],
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"properties": {
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"id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]*$" },
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"name": { "type": "string", "minLength": 1, "maxLength": 120 }, "position": { "$ref": "#/$defs/position" },
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"trajectory": {
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"type": "array", "minItems": 2, "maxItems": 4096,
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"items": { "$ref": "#/$defs/trajectoryKeyframe" }
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},
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"gainDb": { "type": "number", "minimum": -120, "maximum": 24 }, "startTime": { "type": "number", "minimum": 0 },
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"duration": { "type": "number", "exclusiveMinimum": 0 }, "signal": { "$ref": "#/$defs/signal" }
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}
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},
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"ambient": {
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"type": "object", "additionalProperties": false, "required": ["id", "gainDb", "signal"],
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"properties": {
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"id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]*$" },
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"gainDb": { "type": "number", "minimum": -120, "maximum": 24 }, "signal": { "$ref": "#/$defs/signal" }
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}
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}
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}
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}
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