*PR Created by the Glary-Bot Agent*
---
## Summary
Adds the building blocks for a responsive media system on
`apps/website`, motivated by the gallery video blurriness raised in
Slack. Three independent pieces:
1. **`<SiteVideo>` Vue component + URL helper** — emits a `<video>` with
multiple `<source>` tags, designed to pair with assets named
`${name}-${width}.${format}` on `media.comfy.org`.
2. **`scripts/process-videos.sh`** — local-developer `ffmpeg` helper
that produces VP9/WebM + H.264/MP4 variants and a poster JPG. Not wired
into CI; the team uploads to `media.comfy.org` out-of-band.
3. **Marketing image conventions** — shared `MARKETING_FORMATS` /
`MARKETING_WIDTHS` constants and a README documenting how to render
local marketing images via Astro's built-in `<Picture>` from
`astro:assets`.
This PR is **infrastructure only** — no existing pages are modified.
Adoption (e.g. converting `HeroSection`, gallery videos) is a follow-up.
The new files are added to knip's ignore list with the existing "pending
stacked PR" pattern.
## Why this shape
- **No custom `<Picture>` wrapper.** Astro 5 already ships a
`ResponsiveImage` component (name conflict), and Astro's
`LocalImageProps | RemoteImageProps` discriminated union does not
survive a thin wrapper without unsafe `as` casts. Shared constants give
the consistency benefit at lower cost.
- **No CI media-upload step.** The `Release: Website` workflow currently
only refreshes the Ashby snapshot; wiring GCS uploads into it would
require new secrets and team coordination beyond this PR's scope. The
script runs locally and outputs are uploaded to `media.comfy.org` the
same way as today.
- **Single resolution per `<video>`.** `<source media="...">` inside
`<video>` is unreliable across browsers (Safari ignores it). The script
generates multiple widths so callers can pick one per page; JS-based
selection can be layered on later if metrics demand it.
## What's verified
- `pnpm --filter @comfyorg/website test:unit` — 30 pass (7 new for
`buildVideoSources` / `videoKey`)
- `pnpm --filter @comfyorg/website typecheck` — clean
- `pnpm --filter @comfyorg/website build` — 41 pages built clean
- `pnpm knip` — exit 0
- `oxfmt --check` and `oxlint` clean on all changed files
- `bash -n` on `process-videos.sh` clean; usage and missing-deps paths
exercised manually
- Manual: home page and `/gallery` rendered via `astro dev` — both
unchanged with zero console errors (screenshots attached)
## Review feedback addressed
After Oracle review, three follow-up commits land:
- **`SiteVideo` reactivity** — `sources` is now `computed`; the
`<video>` is keyed on the joined source URLs so it remounts when the
source set changes (browsers don't reload on `<source>` mutation).
- **`SiteVideo` accessibility** — `aria-hidden="true"` only when truly
decorative (no `alt` and no `controls`).
- **Shell script robustness** — probes duration with `ffprobe` and falls
back to `t=0` for clips shorter than 1s; enables `nocaseglob` so
`CLIP.MP4` is picked up.
- **Docs** — clarifies when to use `<SiteVideo>` (lightweight
multi-source) vs `<VideoPlayer>` (captions, controls, scrubber).
## Out of scope (follow-ups)
- Converting existing pages (`HeroSection`, customer detail heros,
gallery) to use the new components. Most current images are CDN-hosted
and migrating them is a separate decision.
- Re-encoding the gallery videos at a higher source width to actually
fix the blurriness — that requires the team to run `process-videos.sh`
against the source clips and re-upload.
- Combining `<SiteVideo>`'s multi-source support with `<VideoPlayer>`'s
rich chrome.
## Screenshots


┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-11869-feat-website-add-responsive-media-tooling-for-marketing-assets-3556d73d3650818899c7f9ed3204c9a5)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Glary-Bot <glary-bot@users.noreply.github.com>