{ "x402Version": 2, "id": 8201, "slug": "8201", "resource": "https://video.api.williamrobinson.dev/v1/video/finish", "description": "Finish a short source video (<=60s, <=1080p, <=64MB, fetched by URL) into up to two platform-preset deliverables: caller-guided crop reframing between declared subject regions (never automatic detection), sidecar or burned-in subtitles with reflow, and EBU R128 loudness normalised to the preset target and measured, never claimed compliant. Includes a contact sheet. 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only the artifacts produced by this run are hashed and checked.", "Reframing follows only the caller-declared subject boxes; no face, object, or saliency detection is performed.", "Loudness is measured and normalised per EBU R128 as computed by ffmpeg's loudnorm/ebur128 filters; this is not a platform loudness-compliance certification.", "Delivery presets reflect typical platform recommendations at the time this service was built; verify against the platform's current published specs before publishing.", "No rights, copyright, or content-moderation checks are performed on the source video.", "Artifacts are retained for up to 6 hours, subject to a 1 GiB storage cap for this product; heavy concurrent demand may evict a job's artifacts sooner than the stated TTL." ], "qc": { "blackSegments": [], "frozenSegments": [], "silentSegments": [], "subtitleIssues": [] }, "source": { "audioChannels": 2, "audioCodec": "aac", "bitrateKbps": 668, "bytes": 515198, "container": "mov", "durationS": 6.166, "fps": 30, "height": 480, "loudness": { "integratedLufs": -31.4, "rangeLu": 2.5, "truePeakDbtp": -17.1 }, "sampleRate": 44100, "sha256": "339504acdef44f4e50c760e657cf76a8df60f25c91a239682abda56ac1886e90", "url": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/friday.mp4", "videoCodec": "h264", "width": 640 }, "status": "passed", "tools": { "ffmpeg": "7.1.5-0+deb13u1", "runner": "23ms" }, "truncated": false, "warnings": [] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "brand": { "additionalProperties": false, "properties": { "logoPng": { "contentEncoding": "base64", "description": "Base64 PNG (<= 262144 bytes decoded), or null.", "maxLength": 349528, "type": [ "string", "null" ] }, "position": { "enum": [ "top-left", "top-right", "bottom-left", "bottom-right" ], "type": "string" }, "widthFraction": { "description": "Logo width as a fraction of output width.", "maximum": 0.3, "minimum": 0.05, "type": "number" } }, "required": [ "logoPng", "position", "widthFraction" ], "type": [ "object", "null" ] }, "deliverables": { "items": { "additionalProperties": false, "properties": { "captions": { "enum": [ "burned", "sidecar", "none" ], "type": "string" }, "language": { "description": "Must reference a subtitles[] language when captions is not \"none\"; must be null when captions is \"none\".", "type": [ "string", "null" ] }, "preset": { "enum": [ "youtube-16x9", "shorts-9x16", "reels-9x16", "tiktok-9x16", "square-1x1", "feed-4x5" ], "type": "string" }, "sidecar": { "description": "Also produce the sidecar .vtt when captions is \"burned\".", "type": "boolean" } }, "required": [ "preset", "language", "captions", "sidecar" ], "type": "object" }, "maxItems": 2, "minItems": 1, "type": "array" }, "options": { "additionalProperties": false, "properties": { "captionFontSizeFraction": { "default": 0.045, "maximum": 0.12, "minimum": 0.02, "type": "number" }, "captionMaxCharsPerLine": { "default": 42, "maximum": 80, "minimum": 10, "type": "integer" }, "captionMaxLines": { "default": 2, "maximum": 4, "minimum": 1, "type": "integer" }, "normalizeLoudness": { "default": true, "type": "boolean" } }, "type": "object" }, "sourceUrl": { "description": "Public HTTPS URL of the source video (mp4/mov/webm/mkv, <= 67108864 bytes, <= 60s, <= 1080p). 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"properties": { "content": { "description": "Subtitle file contents (UTF-8 bytes capped, not characters).", "maxLength": 131072, "minLength": 1, "type": "string" }, "format": { "enum": [ "srt", "vtt" ], "type": "string" }, "language": { "description": "BCP-47-style language tag, e.g. \"en\" or \"pt-BR\"; unique across subtitles.", "pattern": "^[a-z]{2,3}(-[A-Za-z0-9]{2,8})*$", "type": "string" } }, "required": [ "language", "format", "content" ], "type": "object" }, "maxItems": 6, "type": "array" } }, "required": [ "sourceUrl", "subtitles", "subjects", "brand", "deliverables", "options" ], "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "method": { "enum": [ "POST" ], "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method", "bodyType", "body" ], "type": "object" }, "output": { "properties": { "example": { "$defs": { "artifact": { "additionalProperties": false, "properties": { "href": { "format": 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"integratedLufs", "rangeLu", "truePeakDbtp" ], "type": "object" }, "presetSpec": { "additionalProperties": false, "properties": { "aspect": { "enum": [ "16:9", "9:16", "1:1", "4:5" ], "type": "string" }, "audioBitrateKbps": { "exclusiveMinimum": 0, "type": "number" }, "height": { "minimum": 1, "type": "integer" }, "loudnessLufs": { "type": "number" }, "maxFps": { "exclusiveMinimum": 0, "type": "number" }, "safeMargin": { "maximum": 1, "minimum": 0, "type": "number" }, "truePeakDbtp": { "type": "number" }, "videoBitrateKbps": { "exclusiveMinimum": 0, "type": "number" }, "width": { "minimum": 1, "type": "integer" } }, "required": [ "aspect", "width", "height", "maxFps", "loudnessLufs", "truePeakDbtp", "videoBitrateKbps", "audioBitrateKbps", "safeMargin" ], "type": "object" }, "reframeWindow": { "additionalProperties": false, "properties": { "fromS": { "minimum": 0, "type": "number" }, "h": { "exclusiveMinimum": 0, "type": "integer" }, "toS": { "minimum": 0, "type": "number" }, "w": { "exclusiveMinimum": 0, "type": "integer" }, "x": { "minimum": 0, "type": "integer" }, "y": { "minimum": 0, "type": "integer" } }, "required": [ "fromS", "toS", "x", "y", "w", "h" ], "type": "object" }, "streamInfo": { "additionalProperties": false, "properties": { "audioChannels": { "minimum": 0, "type": [ "integer", "null" ] }, "audioCodec": { "type": [ "string", "null" ] }, "bitrateKbps": { "minimum": 0, "type": "number" }, "bytes": { "minimum": 0, "type": "integer" }, "container": { "type": "string" }, "durationS": { "minimum": 0, "type": "number" }, "fps": { "exclusiveMinimum": 0, "type": "number" }, "height": { "minimum": 1, "type": "integer" }, "sampleRate": { "minimum": 0, "type": [ "integer", "null" ] }, "videoCodec": { "type": "string" }, "width": { "minimum": 1, "type": "integer" } }, "required": [ "container", "videoCodec", "width", "height", "fps", "durationS", "audioCodec", "audioChannels", "sampleRate", "bitrateKbps", "bytes" ], "type": "object" } }, "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "artifacts": { "items": { "$ref": "#/properties/output/properties/example/$defs/artifact" }, "maxItems": 7, "type": "array" }, "checks": { "items": { "additionalProperties": false, "properties": { "code": { "type": "string" }, "detail": { "type": "string" }, "status": { "enum": [ "passed", "failed", "not_checked" ], "type": "string" } }, "required": [ "code", "status", "detail" ], "type": "object" }, "type": "array" }, "deliverables": { "items": { "additionalProperties": false, "properties": { "captionStats": { "anyOf": [ { "$ref": "#/properties/output/properties/example/$defs/captionStats" }, { "type": "null" } ] }, "captions": { "enum": [ "burned", "sidecar", "none" ], "type": "string" }, "detail": { "type": "string" }, "encodeMs": { "minimum": 0, "type": "number" }, "language": { "type": [ "string", "null" ] }, "loudness": { "anyOf": [ { "$ref": "#/properties/output/properties/example/$defs/loudness" }, { "type": "null" } ] }, "output": { "anyOf": [ { "$ref": "#/properties/output/properties/example/$defs/streamInfo" }, { "type": "null" } ] }, "preset": { "enum": [ "youtube-16x9", "shorts-9x16", "reels-9x16", "tiktok-9x16", "square-1x1", "feed-4x5" ], "type": "string" }, "reframe": { "items": { "$ref": "#/properties/output/properties/example/$defs/reframeWindow" }, "type": "array" }, "slot": { "enum": [ "deliverable-1", "deliverable-2" ], "type": "string" }, "spec": { "$ref": "#/properties/output/properties/example/$defs/presetSpec" }, "status": { "enum": [ "generated", "failed" ], "type": "string" } }, "required": [ "slot", "preset", "spec", "language", "captions", "status", "detail", "output", "loudness", "reframe", "captionStats", "encodeMs" ], "type": "object" }, "maxItems": 2, "type": "array" }, "expiresAt": { "format": "date-time", "type": "string" }, "limitations": { "items": { "type": "string" }, "maxItems": 100, 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"detail": { "type": "string" }, "language": { "type": "string" } }, "required": [ "language", "cue", "code", "detail" ], "type": "object" }, "maxItems": 100, "type": "array" } }, "required": [ "blackSegments", "frozenSegments", "silentSegments", "subtitleIssues" ], "type": "object" }, "source": { "additionalProperties": false, "properties": { "audioChannels": { "minimum": 0, "type": [ "integer", "null" ] }, "audioCodec": { "type": [ "string", "null" ] }, "bitrateKbps": { "minimum": 0, "type": "number" }, "bytes": { "minimum": 0, "type": "integer" }, "container": { "type": "string" }, "durationS": { "minimum": 0, "type": "number" }, "fps": { "exclusiveMinimum": 0, "type": "number" }, "height": { "minimum": 1, "type": "integer" }, "loudness": { "anyOf": [ { "$ref": "#/properties/output/properties/example/$defs/loudness" }, { "type": "null" } ] }, "sampleRate": { "minimum": 0, "type": [ "integer", "null" ] }, "sha256": { "pattern": "^[a-f0-9]{64}$", "type": "string" }, "url": { "type": 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}, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "a": { "description": "App builder code", "pattern": "^[a-z0-9_]{1,32}$", "type": "string" }, "s": { "description": "Service builder codes", "items": { "pattern": "^[a-z0-9_]{1,32}$", "type": "string" }, "maxItems": 11, "type": "array" }, "w": { "description": "Wallet builder code", "pattern": "^[a-z0-9_]{1,32}$", "type": "string" } }, "type": "object" } }, "eip2612GasSponsoring": {}, "erc20ApprovalGasSponsoring": {}, "payment-identifier": { "info": { "required": true }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "id": { "maxLength": 128, "minLength": 16, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "required": { "type": "boolean" } }, "required": [ "required" ], "type": "object" } } }, "tags": [ "bazaar", "builder-code", "eip2612GasSponsoring", "erc20ApprovalGasSponsoring", "payment-identifier" ], "sourceHost": "video.api.williamrobinson.dev", "lastUpdated": "2026-09-11T20:08:09.794Z", "quality": { "calls30d": 1, "uniquePayers30d": 1, "lastCalledAt": "2026-09-11T20:08:09.141Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "video.api.williamrobinson.dev", "manifest_name": "video.api.williamrobinson.dev", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }