Web-only video support

[jprochazk]

What

• Adds web-only video decoding functionality
  • Supported container formats: mp4
  • Supported encoding formats: av1

Proof of concept, much polish needed here (grep for TODO(jan) in this PR).

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)
• I have tested the web demo (if applicable):
  • Using examples from latest main build: rerun.io/viewer
  • Using full set of examples from nightly build: rerun.io/viewer
• The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG
• If applicable, add a new check to the release checklist!
• If have noted any breaking changes to the log API in CHANGELOG.md and the migration guide

• PR Build Summary
• Recent benchmark results
• Wasm size tracking

To run all checks from main, comment on the PR with @rerun-bot full-check.

Testing

(EDIT by emilk)

• Download https://github.com/rerun-io/video-decode-test/blob/main/data/bbb_video_av1_frag.mp4
• pixi run rerun-web bbb_video_av1_frag.mp4

[github-actions]

Deployed docs

Commit	Link
a202f1b	https://landing-3wql99v34-rerun.vercel.app/docs

[jprochazk]

• Related: Add VideoFrame to ExternalImageSource enum gfx-rs/wgpu#6170

[jprochazk]

You can test with this video: https://github.com/rerun-io/video-decode-test/blob/main/data/bbb_video_av1_frag.mp4
Any AV1-encoded MP4 should work, though

[emilk]

You can test with this video: rerun-io/video-decode-test@main/data/bbb_video_av1_frag.mp4 Any AV1-encoded MP4 should work, though

Nice! I've pushed a commit that allows me to play the video with

pixi run rerun-web video.mp4