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Vance Ingalls
43337ae224
Lint rules: - media_missing_id (error): audio/video with data-start but no id - media_missing_src (error): media with id but no src - media_preload_none (warning): preload="none" blocks the renderer - video_nested_in_timed_element upgraded from warning to error Compiler: - Strip preload="none" from media during compilation - Fire-and-forget keyframe interval + VFR detection via ffprobe - Warn on sparse keyframes (>2s) and variable frame rate videos CLI: - Shared lintProject() lints index.html + compositions/*.html - Shared formatLintFindings() used by lint, render, and dev commands - Pre-render lint: warns by default, --strict blocks on errors, --strict-all blocks on errors + warnings - Pre-dev lint: prints issues for agents before starting studio - Render orchestrator hints --workers 1 on parallel capture timeout Refactor: - Extract runFfprobe() + parseProbeJson() (~80 lines deduped) - Extract shouldBlockRender() for testable strict flag logic - Extract formatLintFindings() (3 consumers unified)
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
dev
Start the live preview studio in your browser:
npx hyperframes dev
# Studio running at http://localhost:3002
npx hyperframes dev --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.html
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