Closes #1219 ## Problem On 8GB RAM machines, renders time out at 5% with `Runtime.callFunctionOn timed out` during the duration probe. User-set timeout env vars (`PRODUCER_PUPPETEER_PROTOCOL_TIMEOUT_MS`) are silently ignored by the calibration path, and there are no CLI flags to control timeouts directly. ## Root causes 1. **Calibration timeout cap overrides user settings** — `createCaptureCalibrationConfig` used `Math.min(cfg.protocolTimeout, 30_000)`, meaning even if the user set 300s, calibration still capped at 30s. On slow hardware this causes unnecessary timeouts. 2. **8GB systems get no low-memory treatment** — `getLowMemoryFlags()`, `getGpuMemBudgetMb()`, `memoryAdaptiveCacheLimit()`, and `memoryAdaptiveCacheBytesMb()` all used `< 8192` as the threshold. Systems reporting exactly 8192 MB (common for 8GB machines) fell through to the "plenty of memory" path, getting no Chrome heap reduction or cache limits. 3. **No CLI flags for key timeouts** — Users had to discover the correct env var names (`PRODUCER_PUPPETEER_PROTOCOL_TIMEOUT_MS`, `PRODUCER_PLAYER_READY_TIMEOUT_MS`) by reading source. The non-existent `PUPPETEER_PROTOCOL_TIMEOUT` and `--browser-timeout` were common guesses that did nothing. ## Changes - `captureCost.ts`: `Math.min` → `Math.max` so the 30s calibration default is a floor, not a ceiling. User-set higher timeouts are now respected. - `browserManager.ts`: `>= 8192` → `> 8192` in `getLowMemoryFlags()` and `<= 8192` in `getGpuMemBudgetMb()` so 8GB systems get reduced Chrome heap and GPU memory budget. - `config.ts`: `< 8192` → `<= 8192` in `memoryAdaptiveCacheLimit()` and `memoryAdaptiveCacheBytesMb()` so 8GB systems get reduced frame cache limits. - `render.ts`: Added `--protocol-timeout <ms>` and `--player-ready-timeout <ms>` CLI flags, wired through `resolveConfig` overrides. - Updated calibration tests to match the new floor-not-ceiling behavior. - Added fallow suppressions for pre-existing unused exports in `captureCost.ts`. ## Test plan - [x] Engine config tests pass (`vitest run src/config.test.ts`) - [x] Browser manager tests pass (`vitest run src/services/browserManager.test.ts`) - [x] Calibration safeguard tests pass (4/4 in `renderOrchestrator.test.ts`) - [x] TypeScript compiles cleanly for engine and cli packages - [ ] CI pipeline
hyperframes
CLI for creating, previewing, and rendering HTML video compositions.
Install
npm install -g hyperframes
Or use directly with npx:
npx hyperframes <command>
Requirements: Node.js >= 22, FFmpeg
Commands
init
Scaffold a new Hyperframes project from a template:
npx hyperframes init my-video
cd my-video
preview
Start the live preview studio in your browser:
npx hyperframes preview
# Studio running at http://localhost:3002
npx hyperframes preview --port 4567
render
Render a composition to MP4:
npx hyperframes render ./my-composition.html -o output.mp4
lint
Validate your Hyperframes HTML:
npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose # Include info-level findings
By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.
compositions
List compositions found in the current project:
npx hyperframes compositions
benchmark
Run rendering benchmarks:
npx hyperframes benchmark ./my-composition.html
doctor
Check your environment for required dependencies (Chrome, FFmpeg, Node.js):
npx hyperframes doctor
browser
Manage the bundled Chrome/Chromium installation:
npx hyperframes browser
info
Print version and environment info:
npx hyperframes info
docs
Open the documentation in your browser:
npx hyperframes docs
upgrade
Check for updates and show upgrade instructions:
npx hyperframes upgrade
npx hyperframes upgrade --check --json # machine-readable for agents
Documentation
Full documentation: hyperframes.heygen.com/packages/cli
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI