Fingerprint Pro Internals

https://soubryan.github.io/fingerprint-pro-internals
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### Run capture tool

Source: https://soubryan.github.io/fingerprint-pro-internals/07-reproducing.html

Runs the capture tool, which serves http://localhost:8099/?b=<label>. Open it once per browser. The page loads spy/fpspy.js, imports the stored bundle as a module, calls its exported start() and get(), waits 8 seconds for the delayed stages, and posts the capture back to /save. The tenant answers 403 origin_not_available because the demo key is bound to its own site; the spy records the request body inside the fetch hook before the call leaves, so the payload is captured regardless of the server's response. Third-party storage entries are dropped on save; npm run scrub does the same to a capture taken earlier.

```bash
npm run capture
```

--------------------------------

### Install and fetch the pinned bundle

Source: https://soubryan.github.io/fingerprint-pro-internals/07-reproducing.html

Installs dependencies and downloads the pinned bundle. `npm run fetch` writes `artifacts/agent.original.js` and compares its hash against `agent/pin.json`; a mismatch means the tenant shipped a new build, so snapshot the current map with `npm run diff -- --save <label>` before regenerating anything.

```bash
npm install
npm run fetch
```

--------------------------------

### Run collectors locally with python3 -m http.server

Source: https://soubryan.github.io/fingerprint-pro-internals/07-reproducing.html

Starts a local HTTP server on port 8123 and opens the collector page in the default browser. Use this to run the collectors without the agent; the page loads collector/fp-collect.js, which reports the same status code as the Chrome capture for 132 of 140 collectors.

```bash
python3 -m http.server 8123
open http://127.0.0.1:8123/collector/index.html
```

--------------------------------

### iOS app probe: sig_s97_dataTransfer and h_s97_fn

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s97.html

Collector s97 probes iOS app-specific paths to infer installed apps. The main function returns status codes 0, -1, -2, or -3, and the helper h_s97_fn checks a path under /private/var/mobile/Media/PhotoData/external/ using fn103 and getParent.

```javascript
// s97 — sig_s97_dataTransfer
// module cm, stage2, codes 0 -1 -2 -3
//
// measures
//   window.DataTransfer window.File window.RegExp document.createElement()
//   document.removeEventListener("visibilitychange") document.addEventListener("visibilitychange")
//   document.hidden TextEncoder clearTimeout() setTimeout()
// engine
//   Promise.all() ArrayBuffer Object.getOwnPropertyNames() Object.getPrototypeOf() Promise.race()
//   Uint32Array Uint8Array Promise
// reported value
//   call null
// probes
//   "/1" "96375" "TypeError" "br.gov.meugovbr" "co.visualsupply.cam" "com.airbnb.app"
//   "com.alipay.iphoneclient" "com.apple.MobileSMS" "com.apple.Preferences"
//   "com.apple.ScreenshotServicesService" "com.apple.mediaanalysisd" "com.apple.mobilephone"
//   "com.atebits.Tweetie2" "com.badoo.Badoo" "com.burbn.barcelona" "com.burbn.instagram"
//   "com.canva.canvaeditor" "com.cardify.tinder" "com.einnovation.temu" "com.facebook.Facebook"
//   "com.facebook.Messenger" "com.google.Drive" "com.google.Gmail" "com.google.GoogleMobile"
//   "com.google.Maps.WatchKitApp" "com.google.Translate" "com.google.chrome.ios"
//   "com.google.ios.youtube" "com.google.photos" "com.grabtaxi.iphone" "com.grubhub.search"
//   "com.hammerandchisel.discord" "com.iwilab.KakaoTalk" "com.lemon.lvoverseas"
//   "com.linkedin.LinkedIn" "com.microsoft.skype.teams" "com.moxco.bumble" "com.openai.chat"
//   "com.reddit.Reddit" "com.revolut.revolut" "com.ss.iphone.ugc.Ame" "com.ss.iphone.ugc.Aweme"
//   "com.strava.stravaride" "com.tencent.xin" "com.tenten.app" "com.tinyspeck.chatlyio"
//   "com.toyopagroup.picaboo" "com.ubercab.UberEats" "com.viber" "com.vk.vkclient"
//   "com.woltapp.wolt" "com.zhiliaoapp.musically" "doordash.DoorDashConsumer" "ee.mtakso.client"
//   "jp.naver.line" "net.whatsapp.WhatsApp" "net.whatsapp.WhatsAppSMB" "org.whispersystems.signal"
//   "ph.telegra.Telegraph" "pinterest" "ru.yandex.ytaxi" "tv.twitch"
// compares against
//   !== 0 === "TypeError" in "DataTransfer"
// decides on
//   h_s97_fn2()
//   fn99()
//   fn142: !((v957 = arg822.cancel) == null)
//   fn99: !("DataTransfer" in window)
//   fn99: v756 instanceof Error && v756.name === "TypeError"
//   visibilitychange: !(v869 || v868)
//   visibilitychange: !v869 && v868
//   h_s97_fn: v598 !== 0
//
// 3 owned helpers inlined below.
// shared with other collectors, see agent.clean.js:
//   asUint8Array:6496 crc32OfBytes:4943 fn103:5670 fn142:7227 fn158:8266 fn48:3370 fn66:3854
//   fn99:5449 resolveNameByHash:7015 stringToBytes:7901 visibilitychange:6423
```

```javascript
// agent.clean.js:1562
async function sig_s97_dataTransfer() {
  return await fn142(fn66(500, { s: -2, v: null }), async () => {
    if (h_s97_fn2()) {
      if (fn99()) {
        return { s: 0, v: await h_s97_fn3() };
      }
      return { s: -1, v: null };
    }
    return { s: -3, v: null };
  });
}
```

```javascript
// agent.clean.js:4130
function h_s97_fn(arg515) {
  return new Promise((arg516) => {
    const v597 = "/private/var/mobile/Media/PhotoData/external/" + arg515 + "/1";
    try {
      const [, v598, v599] = fn103(v597);
      if (v598 !== 0) {
        return void arg516(v598);
      }
      v599.getParent(
        () => arg516(0),
        () => arg516(-1),
      );
    } catch (v600) {
      arg516(-2);
    }
  });
}
```

--------------------------------

### Reproduce identity experiments with tools/identity.mjs and tools/cache-bind.mjs

Source: https://soubryan.github.io/fingerprint-pro-internals/06-identity.html

Commands to reproduce identity experiments: run identity.mjs with a payload and optional arms, then bind cache entries with cache-bind.mjs. Raw rows land in artifacts/identity/; npm run evidence copies them into evidence/ with addresses removed. These runs send real requests to a real tenant, so read 08-not-determined on what a score from them is worth before quoting one.

```bash
node tools/identity.mjs --payload <payload.json> --no-cache --rotate-ip
node tools/identity.mjs --payload <payload.json> --no-cache \
  --arms none,soft-1,soft-2,soft-3,soft-4,soft-5,soft-6,soft-7
node tools/cache-bind.mjs --a <windows.json> --b <macos.json>
```

--------------------------------

### Create, compile, and replay a profile

Source: https://soubryan.github.io/fingerprint-pro-internals/repo/profiles.html

Commands to generate a profile from a Chrome donor using --template, compile it with npm run profile, and replay the payload with npm run replay. The first command writes profiles/mine.json, the second compiles it, and the third replays the payload with --dry.

```bash
node tools/profile.mjs --template --donor chrome > profiles/mine.json
node tools/profile.mjs profiles/mine.json
node tools/replay.mjs --payload artifacts/profiles/mine.payload.json --dry
```

--------------------------------

### Rebuild all artifacts with npm run all

Source: https://soubryan.github.io/fingerprint-pro-internals/07-reproducing.html

Rebuilds everything: fetch, deobfuscate (libs, vaults, clean, worker, verify), then map (signals, slice, envelope, endpoints, codes, join, schema, collector, spy). Requires network access only for fetch and libs; harvest is optional because `tools/data/browser-names.json` ships with harvested names.

```bash
npm run all
```

--------------------------------

### s213 collector source code (sig_s213_getCurrentPosition)

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s213.html

The full source code for the s213 collector. It checks for geolocation and permissions support, queries the permission state, and then attempts to get the current position if granted. Returns a status code and value object. The code includes helper functions h_s213_geolocation, h_s213_getCurrentPosition, and h_s213_permissionsQuery.

```javascript
// s213 — sig_s213_getCurrentPosition
// module cm, stage1, codes 0 -1 -2 -3 -4 -5
//
// measures
//   navigator.geolocation.getCurrentPosition() navigator.permissions.query
//   navigator.permissions.query() navigator.permissions navigator.geolocation navigator TextEncoder
// engine
//   Object.assign() Object.keys() ArrayBuffer Object.getOwnPropertyNames() Object.getPrototypeOf()
//   Uint32Array Uint8Array Promise
// reported value
//   null {la,lo,al,ac,alac,h,s,t}
// probes
//   "PERMISSION_DENIED" "POSITION_UNAVAILABLE" "TIMEOUT" "coords" "denied" "function" "granted"
//   "prompt" "state"
// compares against
//   == "function" === "function" in "geolocation" in "permissions"
// decides on
//   !h_s213_geolocation() || !fn114()
//   h_s213_geolocation: "geolocation" in navigator && navigator.geolocation !== undefined
//   fn114: "permissions" in navigator && readVaultedProp(navigator, "permissions") && typeof navigator.permissions.query === "function"
//   h_s213_getCurrentPosition: !arg485
//   readVaultedProp: typeof v316 == "function"
//
// 3 owned helpers inlined below.
// shared with other collectors, see agent.clean.js:
//   asUint8Array:6496 crc32OfBytes:4943 fn114:6193 fn48:3370 fn98:5440 readVaultedProp:1674
//   resolveNameByHash:7015 stringToBytes:7901

// agent.clean.js:540
function h_s213_geolocation() {
  return "geolocation" in navigator && navigator.geolocation !== undefined;
}

// agent.clean.js:3893
async function h_s213_getCurrentPosition(arg482) {
  switch (arg482) {
    case "prompt":
      return { s: -2, v: null };
    case "denied":
      return { s: -3, v: null };
    case "granted":
      return new Promise((arg483) => {
        navigator.geolocation.getCurrentPosition(
          (arg484) =>
            arg483(
              (function (arg485) {
                if (!arg485) {
                  return { s: -5, v: null };
                }
                const {
                  accuracy: accuracy,
                  altitude: altitude,
                  altitudeAccuracy: altitudeAccuracy,
                  latitude: latitude,
                  longitude: longitude,
                  heading: heading,
                  speed: speed,
                } = readVaultedProp(arg485, "coords");
                return {
                  s: 0,
                  v: {
                    la: latitude,
                    lo: longitude,
                    al: altitude,
                    ac: accuracy,
                    alac: altitudeAccuracy,
                    h: heading,
                    s: speed,
                    t: arg485.timestamp,
                  },
                };
              })(arg484),
            ),
          (arg486) =>
            arg483(
              (function (arg487) {
                switch (((v577 = arg487), readVaultedProp(v577, "code"))) {
                  case readVaultedProp(arg487, "PERMISSION_DENIED"):
                    return { s: -3, v: null };
                  case readVaultedProp(arg487, "POSITION_UNAVAILABLE"):
                    return { s: -5, v: null };
                  case readVaultedProp(arg487, "TIMEOUT"):
                    return { s: -4, v: null };
                  default:
                    return { s: -5, v: null };
                }
                var v577;
              })(arg486),
            ),
          { enableHighAccuracy: true, timeout: 10000, maximumAge: 0 },
        );
      });
    default:
      return { s: -5, v: null };
  }
}

// agent.clean.js:5446
async function h_s213_permissionsQuery() {
  return readVaultedProp(await navigator.permissions.query({ name: "geolocation" }), "state");
}

// agent.clean.js:8177
function sig_s213_getCurrentPosition() {
  if (!h_s213_geolocation() || !fn114()) {
    return { s: -1, v: null };
  }
  const v1027 = { s: -4, v: null };
  h_s213_permissionsQuery()
    .then((arg911) => h_s213_getCurrentPosition(arg911))
    .then((arg912) => {
      fn98(v1027, arg912);
    })
    .catch(() => fn98(v1027, { s: -5, v: null }));
  return v1027;
}

```

--------------------------------

### h_s94_fn3 build RTCConfiguration with ICE server

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s94.html

Helper h_s94_fn3 builds an RTCConfiguration object with a single ICE server entry using the hardcoded credential "admin", the given username, and URLs produced by h_s94_fn9.

```javascript
// agent.clean.js:1689
function h_s94_fn3(arg256, arg257, arg258) {
  const v318 = { credential: "admin" };
  v318.urls = h_s94_fn9(arg257, arg258);
  v318.username = arg256;
  const v319 = {};
  v319.iceServers = [v318];
  return v319;
}
```

--------------------------------

### sig_s222_keyboard: get keyboard layout map

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s222.html

Collector s222 (sig_s222_keyboard) reads the physical keyboard layout via navigator.keyboard.getLayoutMap(). It returns { s: -1, v: null } when the API is unavailable, { s: -101, v: null } on a DOMException or TypeError matching fn118, and { s: -2, v: null } when the error is a window.DOMException with message "must be called from a top-level browsing context". On success it returns { s: 0, v: Array.from(v923.entries()) }.

```javascript
// s222 — sig_s222_keyboard
// module cm, stage2, codes 0 -1 -2 -101
//
// measures
//   navigator.keyboard navigator.keyboard.getLayoutMap navigator.keyboard.getLayoutMap()
//   window.DOMException DOMException
// engine
//   Array.from() TypeError
// reported value
//   call null
// probes
//   "function"
// compares against
//   !== "function"
// decides on
//   !keyboard || typeof keyboard.getLayoutMap !== "function"
//   fn118(v924)
//   h_s222_fn(v924)
//   fn118: (arg732 instanceof DOMException || arg732 instanceof TypeError) && (v10.test(arg732.message) || v12.test(arg732.message) || v11.test(arg732.message) || v13.test…
//   h_s222_fn: arg545 instanceof window.DOMException && arg545.message.includes("must be called from a top-level browsing context")
//
// 1 owned helper inlined below.
// shared with other collectors, see agent.clean.js:
//   fn118:6312 v10:3418 v11:3419 v12:3420 v13:3421 v14:3422

// agent.clean.js:4305
function h_s222_fn(arg545) {
  return (
    arg545 instanceof window.DOMException &&
    arg545.message.includes("must be called from a top-level browsing context")
  );
}

// agent.clean.js:6970
async function sig_s222_keyboard() {
  const keyboard = navigator.keyboard;
  if (!keyboard || typeof keyboard.getLayoutMap !== "function") {
    return { s: -1, v: null };
  }
  let v923;
  try {
    v923 = await keyboard.getLayoutMap();
  } catch (v924) {
    if (fn118(v924)) {
      return { s: -101, v: null };
    }
    if (h_s222_fn(v924)) {
      return { s: -2, v: null };
    }
    throw v924;
  }
  return { s: 0, v: Array.from(v923.entries()) };
}

```

--------------------------------

### npm run codec

Source: https://soubryan.github.io/fingerprint-pro-internals/09-toolchain.html

Runs the codec tool to print detected roles and self-test, then opens a capture file or decodes a body, optionally sealing the payload.

```bash
npm run codec                                 # print the detected roles, then self-test
node tools/codec.mjs --open captures/chrome-*.json
node tools/codec.mjs --open body.bin --out payload.json
node tools/codec.mjs --seal payload.json
```

--------------------------------

### buildPayload({ apiKey })

Source: https://soubryan.github.io/fingerprint-pro-internals/repo/collector.html

Runs `collect` and returns the wire object. The payload carries 143 signal ids (140 collectors plus three wire ids from `toRequest`).

```APIDOC
## buildPayload({ apiKey })

### Description
Runs `collect` and returns the wire object. The payload carries 143 signal ids (140 collectors plus three wire ids from `toRequest`).

### Method
Function call

### Endpoint
`buildPayload({ apiKey })`

### Parameters
- `apiKey` (string) - Required - The tenant public key.

### Returns
- `payload` (object) - The wire object with 143 `sN` keys plus envelope keys.
```

--------------------------------

### Use the fp-collect API

Source: https://soubryan.github.io/fingerprint-pro-internals/repo/collector.html

Import the four exported functions from fp-collect.js and run the full pipeline: collect signals, build the wire payload, frame it, and send it. buildPayload returns 143 sN keys plus envelope keys; frame compresses over 1024 bytes and seals with tag 3,14.

```javascript
import { collect, buildPayload, frame, send } from "./fp-collect.js";

const { named, components } = await collect();
const payload = await buildPayload({ apiKey: "<tenant public key>" });
const sealed = await frame(payload);
const result = await send({ apiKey: "<tenant public key>", endpoint: "https://<tenant ingress>" });
```

--------------------------------

### s70 WebGPU render collector helpers

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s70.html

The s70 collector implements a full WebGPU pipeline with timestamp queries to measure GPU execution timing. The header comment lists measured APIs, probes, comparison values, and decision points; the helper functions handle adapter info, canvas hashing, error handling, and GPU availability checks.

```javascript
// s70 — sig_s70_textDecoder
// module cm, stage2, codes 0 -1 -2 -3 -4 -5 -7, value is a digest
//
// measures
//   TextDecoder navigator.gpu.getPreferredCanvasFormat() window.GPUBufferUsage.COPY_DST
//   window.GPUBufferUsage.COPY_SRC window.GPUBufferUsage.MAP_READ
//   window.GPUBufferUsage.QUERY_RESOLVE window.GPUBufferUsage.UNIFORM window.GPUMapMode.READ
//   window.GPUTextureUsage.COPY_DST window.GPUTextureUsage.TEXTURE_BINDING window.performance.now()
//   navigator.gpu
// engine
//   decodeURIComponent() escape() Float32Array.BYTES_PER_ELEMENT Float64Array Array() Math.PI
//   SyntaxError String.fromCharCode.apply()
// reported value
//   [] null value {s,f,v,a}
// probes
//   "96375" "auto" "axrs" "checkered" "encoder" "function" "message" "nearest" "none" "pipeline"
//   "renderPass" "rgba8unorm" "shader" "store" "timestamp" "unmapped" "webgpu"
// compares against
//   !== 0 <= 0 == "function" === "string" === "unmapped" === 0 === 4169850297
// decides on
//   v1138.s !== 0
//   fn142: !((v957 = arg822.cancel) == null)
//   fn90: !v666
//   h_s70_fn: !(v65.s === 0)
//   h_s70_fn: !h_s70_gpu()
//   readVaultedProp: typeof v316 == "function"
//   h_s70_fn4: arg235 instanceof TypeError && h_s70_fn5(readVaultedProp(arg235, "message"))
//   fn157: v1032 = undefined, !v1034
//   fn157: v1033-- <= 0
//   fn157: !v1034
//   fn157: !(v1032 == null)
//   visibilitychange: !(v869 || v868)
//   visibilitychange: !v869 && v868
//   fn131: !gpu
//   fn131: v918 instanceof Error && fn46()
//   h_s70_gpu: "gpu" && navigator.gpu
//   resolveNameByHash: typeof arg801 === "string"
//   resolveNameByHash: fn48(v928) === arg801
//   h_s70_getPreferredCanvasFormat: v772.mapState === "unmapped"
//   h_s70_fn7: arg602.info ?? (await arg602.requestAdapterInfo())
//   h_s70_fn5: !!v485 && fn48(v485[1]) === 4169850297
// the call graph walk hit its limit here, so the tests above are partial
//
// 11 owned helpers inlined below.
// shared with other collectors, see agent.clean.js:
//   asUint8Array:6496 base64Encode:8766 crc32OfBytes:4943 decodeJsonBytes:5252
//   decryptSelfKeyedTable:112 deepClone:4738 fn124:6501 fn131:6850 fn142:7227 fn157:8239 fn158:8266
//   fn165:8763 fn166:8783 fn31:1619 fn43:3089 fn46:3216 fn48:3370 fn53:3506 fn58:3750 fn65:3849
//   fn74:4219 fn76:4296 fn78:4342 fn9:252 fn90:4751 fn91:4777 fn93:5043 fn96:5398 hash128:2674
//   makeSelfKeyedVault:3791 readVaultedProp:1674 resolveNameByHash:7015 stringToBytes:7901
//   uint8Array2:3955 uint8Array3:3956 uint8Array4:3957 v18:3959 v3:446 v4:447 v5:461 v6:462 v7:463
//   v8:464 v9:465 visibilitychange:6423
```

```javascript
// agent.clean.js:203
async function h_s70_fn() {
  const v65 = await fn131();
  let v66 = null;
  if (!(v65.s === 0)) {
    return v65;
  }
  v66 = readVaultedProp(v65, "v");
  if (!h_s70_gpu()) {
    return { s: -1, v: null };
  }
  const v67 = h_s70_canvas();
  if (v67) {
    return { s: 0, v: [v66, v67] };
  }
  return { s: -5, v: null };
}
```

```javascript
// agent.clean.js:660
async function h_s70_fn2(arg73, arg74) {
  const v124 = Array.from(arg73?.features.values()),
    [v125, v126] = await Promise.all([
      h_s70_getPreferredCanvasFormat(arg73, v124, arg74),
      h_s70_fn7(arg73),
    ]);
  return [v125, v126, v124];
}
```

```javascript
// agent.clean.js:802
function h_s70_fn3(canvas) {
  return h_s70_fn6(hash128(canvas.toDataURL()));
}
```

```javascript
// agent.clean.js:1556
function h_s70_fn4(arg235) {
  if (arg235 instanceof TypeError && h_s70_fn5(readVaultedProp(arg235, "message"))) {
    return { s: -7, v: null };
  }
  throw arg235;
}
```

```javascript
// agent.clean.js:3178
function h_s70_fn5(arg367) {
  const v485 = arg367.match(h_s70_fn8);
  return !!v485 && fn48(v485[1]) === 4169850297;
}
```

```javascript
// agent.clean.js:3876
function h_s70_fn6(arg481) {
  const uint8Array11 = new Uint8Array(arg481.length / 2);
  for (let v575 = 0; v575 < arg481.length; v575 += 2) {
    uint8Array11[v575 / 2] = parseInt(arg481[v575] + arg481[v575 + 1], 16);
  }
  return uint8Array11;
}
```

```javascript
// agent.clean.js:4407
function h_s70_gpu() {
  return "gpu" && navigator.gpu;
}
```

```javascript
// agent.clean.js:4774
async function h_s70_fn7(arg602) {
  return arg602.info ?? (await arg602.requestAdapterInfo());
}
```

--------------------------------

### Collector s211: mediaCapabilities.decodingInfo() probe with helpers

Source: https://soubryan.github.io/fingerprint-pro-internals/slices/s211.html

Collector s211 probes navigator.mediaCapabilities.decodingInfo() for a set of video and audio codecs, returning a bitmask (supported=1, smooth=2, powerEfficient=4) per probe or the error message string on failure. Returns {s:-1,v:null} when mediaCapabilities is absent. The helper h_s211_fn builds MediaDecodingConfiguration objects with a self-keyed vault type and optional audio track; h_s211_fn2 defines the probe list; vault_nd and the h_s211_fn3/4/5 constants supply the encrypted type and video/audio parameters.

```javascript
// s211 — sig_s211_decodingInfo
// module cm, stage2, codes 0 -1
//
// measures
//   navigator.mediaCapabilities.decodingInfo() navigator.mediaCapabilities TextEncoder
// engine
//   SyntaxError Object.defineProperty() String.fromCharCode() Array Number() parseInt() String()
//   Promise.all()
// reported value
//   call null
// probes
//   "audio/mp4; codecs=mp4a.40.5" "audio/ogg; codecs=opus" "function" "message"
//   "video/mp4; codecs=av01.0.08M.08" "video/mp4; codecs=avc1.640028"
//   "video/mp4; codecs=avc1.640033" "video/mp4; codecs=hvc1.1.6.L93.B0"
//   "video/webm; codecs=vp09.00.10.08" "video/webm; codecs=vp8"
// compares against
//   == "function" === "string" in "mediaCapabilities"
// decides on
//   !("mediaCapabilities" in navigator)
//   v158 instanceof Error
//   readVaultedProp: typeof v316 == "function"
//   resolveNameByHash: typeof arg801 === "string"
//   resolveNameByHash: fn48(v928) === arg801
// the call graph walk hit its limit here, so the tests above are partial
//
// 7 owned helpers inlined below.
// shared with other collectors, see agent.clean.js:
//   asUint8Array:6496 crc32OfBytes:4943 decodeJsonBytes:5252 decryptSelfKeyedTable:112
//   deepClone:4738 fn48:3370 makeSelfKeyedVault:3791 readVaultedProp:1674 resolveNameByHash:7015
//   stringToBytes:7901

// agent.clean.js:838
async function sig_s211_decodingInfo() {
  if (!("mediaCapabilities" in navigator)) {
    return { s: -1, v: null };
  }
  return {
    s: 0,
    v: await Promise.all(
      h_s211_fn6.map(async (arg100) => {
        try {
          const v156 = await navigator.mediaCapabilities.decodingInfo(arg100);
          let v157 = 0;
          if (v156.supported) {
            v157 += 1;
          }
          if (v156.smooth) {
            v157 += 2;
          }
          if (v156.powerEfficient) {
            v157 += 4;
          }
          return v157;
        } catch (v158) {
          return v158 instanceof Error ? readVaultedProp(v158, "message") : String(v158);
        }
      }),
    ),
  };
}

// agent.clean.js:1602
function h_s211_fn(arg240, arg241 = h_s211_fn3, arg242 = null, arg243 = h_s211_fn5) {
  const v299 = {
    type: ((v300 = vault_nd), (v301 = 1), v300(v301)),
    video: { contentType: arg240, ...arg241 },
  };
  var v300, v301;
  if (arg242) {
    return { ...v299, audio: { contentType: arg242, ...arg243 } };
  }
  return v299;
}

// agent.clean.js:3358
function h_s211_fn2() {
  return [
    h_s211_fn("video/mp4; codecs=av01.0.08M.08"),
    h_s211_fn("video/webm; codecs=vp8"),
    h_s211_fn("video/webm; codecs=vp09.00.10.08"),
    h_s211_fn("video/mp4; codecs=hvc1.1.6.L93.B0"),
    h_s211_fn("video/mp4; codecs=avc1.640028"),
    h_s211_fn("video/mp4; codecs=avc1.640033", h_s211_fn4),
    h_s211_fn("video/webm; codecs=vp09.00.10.08", h_s211_fn3, "audio/ogg; codecs=opus"),
    h_s211_fn("video/mp4; codecs=avc1.640028", h_s211_fn3, "audio/mp4; codecs=mp4a.40.5"),
  ];
}

// agent.clean.js:8013
var vault_nd = makeSelfKeyedVault(
  [
    2438195688, 1087750592, 3820735174, 4289145014, 867804334, 3992103908, 3853460215, 631349426,
    4075924452, 2717284327, 564585452, 2762793387, 4105314727, 1927347170, 3988627958, 4256114423,
    1660543909, 2762274992, 3786108858, 603323124, 2728785321, 3886513574, 1895559408, 2365104616,
    3019796731, 698606572, 4004508834, 4238615970, 800514555, 2997089442, 2847291112, 922217954,
    2930111919, 4087560186, 603323053, 2728785321, 3786440102, 1895561456, 4059152374, 3019796731,
    698606572, 4004508834, 2867998904, 616211168, 4239651491, 2695182013, 1996222702, 4076461544,
    3019244283, 698606572, 4004508834, 2867998904, 616211168, 4239651491, 2695182004, 1893857262,
    3824722934, 4172309241, 1874502820, 4210352555, 4121502709, 2108072613, 4037273511, 2717021947,
    1659302640, 3030496234, 3198757297, 2075305647, 2779771622, 2897552304, 866169263, 2699214308,
    4272891040, 1957014767, 2929963517, 3802473905, 1957014781, 4059348903, 3185866235, 615558370,
    2693001391, 4171506085, 698460332, 2632114851,
  ],
  6,
);

// agent.clean.js:8029
const h_s211_fn3 = { width: 1920, height: 1080, bitrate: 5000000, framerate: 30 };

// agent.clean.js:8030
const h_s211_fn4 = { width: 3840, height: 2160, bitrate: 20000000, framerate: 60 };

// agent.clean.js:8031
const h_s211_fn5 = { channels: 2, bitrate: 132700, samplerate: 5200 };

// agent.clean.js:8042
const h_s211_fn6 = h_s211_fn2();

```
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