remotion-dev/remotion116 installs

update-ffmpeg

Q: How do I install this agent skill?

Run npx skills add https://github.com/remotion-dev/remotion --skill update-ffmpeg.

Q: Is this agent skill safe to install?

Review the displayed partner audits, complete source, permissions, dependencies, and exact revision before installing.

Update the monorepo FFmpeg archives, regenerate bindings, rebuild compositor binaries, and validate a single Remotion pull request. Use after the seven-platform FFmpeg build completes.

How do I install this agent skill?

npx skills add https://github.com/remotion-dev/remotion --skill update-ffmpeg

view source ↗

Is this agent skill safe to install?

Gen Agent Trust Hubpass
This skill automates FFmpeg updates and compositor builds for the Remotion project using local verification scripts. It processes user-provided artifact URLs and commit SHAs, which presents a standard indirect prompt injection surface for build-related tasks.
Socketpass
No alerts
Snykpass
Risk: LOW · No issues

What does this agent skill do?

Update Remotion FFmpeg

The FFmpeg build recipes, Rust bindings and wrapper live in packages/compositor/ffmpeg. The compositor and wrapper use local Cargo dependencies, and updates are reviewed in a single Remotion pull request.

Collect and import

Use the full source commit SHA for the intended FFmpeg build.

Explicitly trigger the CircleCI pipeline on the branch containing that commit using the web app's Trigger Pipeline button or the API. No parameters are needed: the workflow only runs for pipeline.trigger.type == "api", which covers both methods. See the trigger instructions. Wait for its five jobs and the macOS GitHub Actions build for the same commit to succeed. Then collect artifacts from the Remotion repository root:

node packages/compositor/ffmpeg/collect-artifacts.mjs --sha <full-source-sha>

The collector requires successful GitHub Actions and CircleCI builds for that same SHA. Do not combine runs or fill missing targets from an older build. Keep the returned MANIFEST.json and SHA256SUMS with the seven archives.

Upload the verified archives to a new immutable directory on remotion.media using the repository's R2 upload workflow. Never overwrite an existing release directory. Then run:

node packages/compositor/ffmpeg/import-artifacts.mjs <artifact-directory> <immutable-https-base-url>

The importer verifies local and hosted archive checksums before updating assets.json and the seven canonical generated bindings. Archives remain ignored downloads. Do not hand-edit bindings.

Rebuild and validate

Install dependencies with bun install --frozen-lockfile. From packages/compositor, install missing cross-compilation toolchains with bun install-toolchain.ts, then run bun run build-all.

Require all seven targets: Windows x64 GNU, macOS ARM64/x64, Linux ARM64/x64 GNU/musl. On macOS, use an MSVCRT-targeting x86_64-w64-mingw32-gcc. Verify objdump -p packages/compositor-win32-x64-msvc/remotion.exe imports msvcrt.dll and no api-ms-win-crt-* or ucrtbase.dll.

From the repository root, run bun run build, bun run stylecheck, and git diff --check. Inspect the FFmpeg metadata/binding changes and all seven rebuilt compositor packages. Do not include unrelated changes.

When a PR is requested, read ../pr/SKILL.md and ../pr-name/SKILL.md. Include the full source SHA, hosted archive directory, CI provenance, rebuilt targets and validation results. Use the title:

`@remotion/compositor`: Update FFmpeg and rebuild binaries

packages/lambda-binaries packages Chromium and fonts and does not need a rebuild for an FFmpeg-only update.

How can the creator link this skill?

Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.

<a href="https://skillzs.dev/skills/remotion-dev/remotion/update-ffmpeg">View update-ffmpeg on skillZs</a>