forked from marfrit/marfrit-packages
marfrit
e0af915788
Diagnostic on fresnel (RK3399 / Mali-T860 / mainline) showed
InitV4L2RequestDecoder running at runtime but failing the
hw_configs sanity check:
FFMPEG: Initialising V4L2 stateless (request API) FFmpeg decoder
FFMPEG: codec h264 has no DRM hwaccel —
libavcodec built without --enable-v4l2-request?
FFMPEG: Initialising V4L2-DRM FFmpeg decoder ← falls through to stateful
FFMPEG: V4L2 codec h264_v4l2m2m : V4L2 mem2mem H.264 decoder wrapper
FFMPEG: Couldn't initialise V4L2 decoder ← stateful also fails
…despite the system libavcodec.so being built with
--enable-v4l2-request and exposing h264_v4l2request, vp8_v4l2request,
etc. as named AVCodec entries.
Root cause: libavcodec exposes v4l2_request through one of two
mechanisms depending on the build:
(a) Named AVCodec entry (legacy, distro-portable): looked up via
avcodec_find_decoder_by_name("h264_v4l2request"). ALARM,
Debian, most distros use this.
(b) hw_configs entry on the generic codec (modern, upstream): the
generic codec's AVCodecHWConfig array advertises
AV_HWDEVICE_TYPE_DRM. Setting hw_device_ctx binds the hwaccel.
Patch 3 originally only probed (b). On builds that ship (a) — the
common case — the check failed even though v4l2_request was fully
functional.
Fix: probe (a) first via the codec-name lookup table, fall back to
(b) walking hw_configs. Both shapes work; the decoder is opened with
whichever AVCodec the probe selected. The DRM hwdevice ctx
attachment is unchanged (both mechanisms need it for surface
allocation).
Patch description and the in-code comment block updated to document
the dual mechanism. Behaviour on stateful-only boards (Pi4 / vendor
MPP) preserved: neither named codec nor hw_configs DRM is registered,
the function bails out, the existing InitV4L2Decoder runs as before.
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.