Files
punktfunk/docs-site
enricobuehlerandClaude Opus 5 1cefd37603 fix(pf-encode): arbitrate NVENC split-encode vs sub-frame readback (Phase 8)
Verified against nvEncodeAPI.h's own splitEncodeMode doc (user-prompted
— the audit's 'exclusive for HEVC' one-liner deserved checking):
- H.264: split 'is not applicable' — hard-DISABLE the mode so the
  written config, CeilingKey, the split diagnostic log and the
  rejection-retry stay truthful (the retry used to re-open a
  byte-identical session after an H.264 'split rejection'). The libav
  path's operator arm gains the codec gate its auto arm always had.
- HEVC: split 'not supported if … subframe mode' — when WE force split
  (TWO/THREE/AUTO_FORCED, the 4K120 throughput lever), sub-frame yields
  with a logged escape (PUNKTFUNK_SPLIT_ENCODE=0 chooses sub-frame).
  ⚠ Keyed on FORCED modes only, never != DISABLE: AUTO(0) is the
  resolver's fallthrough for every sub-950Mpix session, and the wider
  key would have disarmed the Phase-3 chunked-poll feature fleet-wide
  (critic catch). Under AUTO the driver arbitrates — the shipped state.
- AV1: untouched — per-tile sub-frame + split are legal together.

The arbitration is a pure nvenc_core fn called by each backend BEFORE
the ladder, the ceiling key and the chunked-poll latch — all three see
the post-arbitration truth. A drop inside build_init_params would have
left poll_chunk busy-polling its whole budget every AU (numSlices stays
0 without reportSliceOffsets; both loop exits dead — critic catch).
Linux latches subframe_forced beside subframe_on at query_caps (no env
re-reads after open); Windows records the arbitrated state so
reconfigure presents exactly the params the open had (also closes the
pre-existing mid-session env-flip hazard there).

Truth-table tests in nvenc_core; PUNKTFUNK_NVENC_SUBFRAME documented
(it never was); PUNKTFUNK_SPLIT_ENCODE row updated.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-26 10:08:44 +02:00
..

punktfunk-docs

The punktfunk documentation site: Fumadocs on TanStack Start (Vite + Nitro/bun preset).

Content lives in content/docs/ as .md/.mdx. This site is the source of truth for the user-facing guides; design rationale lives in the internal punktfunk-planning repo.

API reference

/api renders the host's management REST API as an interactive Scalar reference (linked from the top nav, the docs sidebar, and the landing page). It reads public/openapi.json — a snapshot of the repo's generated spec. Refresh it after a management-API change:

# from the repo root — regenerate the spec, then copy the snapshot in:
cargo run -p punktfunk-host -- openapi > api/openapi.json
cp api/openapi.json docs-site/public/openapi.json

Develop

bun install
bun run dev        # http://localhost:3001  (docs at /docs)

Build & serve

bun run build
bun run start      # serves .output/ via Bun

Layout

source.config.ts          Fumadocs MDX collection (content/docs)
content/docs/             the docs content (.md/.mdx) + meta.json nav
src/
  routes/
    __root.tsx            RootProvider + html shell
    index.tsx            landing page
    docs/$.tsx           catch-all docs renderer (Fumadocs DocsLayout)
    api/index.tsx        Scalar API reference (reads public/openapi.json)
    api/search.ts        Orama search endpoint
  lib/source.ts          Fumadocs loader over the generated collection
  lib/layout.shared.tsx  shared nav chrome
  components/mdx.tsx      MDX component map
  styles/app.css          Tailwind 4 + Fumadocs preset