claude-noether
ea99dc8e27
Companion to 0016 (PR #106). Adds a coefficient side buffer in H264Context, populated at the start of ff_h264_hl_decode_mb with a single memcpy from sl->mb BEFORE IDCT-add zeros it. The existing post-pixel-work callback (still in 0016) can now read: - h->mb_inspect_coeffs = pre-IDCT coefficients (this patch) - h->cur_pic.f->data = post-pixel-work pre-deblock reconstruction and derive P = pixels − IDCT(C) for daedalus-decoder's frame-major dispatch in PR-A3+. Memcpy gated on (h->mb_inspect_cb != NULL). Zero cost when no consumer is registered. Side buffer = 16 * 48 int16 = 1536 bytes (matches the 8-bit half of sl->mb's int16_t[16 * 48 * 2] declared size; high-bit-depth uses the upper half — not preserved here since the daedalus-decoder consumer is 8-bit-only). Single-threaded decode assumed at the consumer side (avctx->thread_count = 1). Multi-slice / multi-threaded streams would race on the single side buffer — explicit limitation of the inspection mechanism, future extension would put per-slice buffers in H264SliceContext. Verified: patches 0016 + 0017 apply cleanly and build in sequence against the Kwiboo v4l2-request-n8.1 fork at the pinned commit b57fbbe5. ff_h264_set_mb_inspect_cb symbol exported as before. Wired into arch PKGBUILD + debian build-deb.sh patch sequence. pkgrel bumped 13 → 14. Refs reauktion/daedalus-decoder!14 (PR-A2 callback wiring complete, PR-A3 coefficient extraction is the next consumer).
marfrit-packages
Overlay package repository for the reauktion.de infrastructure.
Published at: https://packages.reauktion.de/
Scope
| Tree | Arches | Notes |
|---|---|---|
| Arch Linux ARM (ALARM) | aarch64 |
primary target — Pi 5, Rock 5, ampere, KU-1255 test rigs |
| Arch Linux | x86_64 |
for nuccies / workstations |
| Debian | arm64, amd64 |
for non-Arch hosts |
MIPS is intentionally unsupported. The Fritz!Box is sacred.
Layout (served at packages.reauktion.de)
packages.reauktion.de/
├── arch/
│ ├── aarch64/{marfrit.db,marfrit.files,*.pkg.tar.{xz,zst}{,.sig}}
│ └── x86_64/...
├── debian/
│ ├── dists/
│ │ ├── bookworm/{Release,InRelease,Release.gpg,main/binary-{arm64,amd64}/...}
│ │ └── trixie/...
│ └── pool/main/...
└── marfrit.gpg # public signing key
Adding the repo (Arch / ALARM)
curl -sO https://packages.reauktion.de/marfrit.gpg
sudo pacman-key --add marfrit.gpg
sudo pacman-key --lsign-key 92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C
# Paste at the end of /etc/pacman.conf:
[marfrit]
Server = https://packages.reauktion.de/arch/$arch
SigLevel = Required DatabaseRequired
sudo pacman -Sy
Adding the repo (Debian)
sudo install -m 755 -d /etc/apt/keyrings
curl -s https://packages.reauktion.de/marfrit.gpg | \
sudo gpg --dearmor -o /etc/apt/keyrings/marfrit.gpg
echo "deb [signed-by=/etc/apt/keyrings/marfrit.gpg] https://packages.reauktion.de/debian $(lsb_release -cs) main" | \
sudo tee /etc/apt/sources.list.d/marfrit.list
sudo apt update
Signing key
- Fingerprint:
92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C - UID:
Markus Fritsche (marfrit-repo signing) <mfritsche@reauktion.de> - Expires: 2030-04-13
Key management procedures (renewal, rotation, revocation) live in DokuWiki at private:reauktion:marfrit_repo_key (admin-only).
Layout in this Git repo
marfrit-packages/
├── README.md
├── arch/
│ └── distcc-avahi/ # ALARM distcc with --with-avahi
├── debian/ # (future) Debian source packages
└── .gitea/
└── workflows/
└── build.yml # CI pipeline stub
mfritsche@reauktion.de.