Commit Graph

7 Commits

Author SHA1 Message Date
Viktor Petersson
8c6cfaf26a feat(server): offer HandBrake GUI steps for rejected video uploads (#3040)
* feat(server): offer HandBrake GUI steps for rejected video uploads

- Add _handbrake_steps mirroring the ffmpeg recipe's codec/1080p choices
- Persist the steps to metadata.error_handbrake on rejection
- Render them as a numbered list with a handbrake.fr link in the modal

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(server): make HandBrake steps a real preset-based walkthrough

- Lead with the stock "Fast 1080p30" preset (H.264 MP4, 1080p cap)
- HEVC boards just flip Video Encoder to "H.265 (x265)"
- Spell out source pick, Save As/Browse, and Start Encode
- Drop the cap arg: the 1080p preset is the low-RAM fix too

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test: assert on HANDBRAKE_URL constant, not the literal

Reference processing.HANDBRAKE_URL instead of a duplicated URL literal
so CodeQL stops flagging the assertion as incomplete-URL-substring
sanitization (false positive in a test containment check).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: address Copilot review on HandBrake steps

- Reword final step: upload as a new asset (the Edit modal has no
  upload control)
- Rename stale-clear test to mention error_handbrake too

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 08:55:57 +02:00
Viktor Petersson
5d21924080 fix(celery): don't report the by-design codec rejection to Sentry (#3041)
The upload codec/resolution gate raises ``UnsupportedVideoCodecError``
as a deliberate, operator-facing rejection — it's surfaced in the UI as
a "Failed" pill plus a copy-pasteable ffmpeg re-encode recipe via
``_NormalizeAssetTask.on_failure``. It's an expected outcome (e.g. Pi 5
has no H.264 HW decode block, an unknown arm64 board can't certify any
codec), not a fault, so it shouldn't reach Sentry — but every rejection
was landing there as an unhandled task error (Sentry ANTHIAS-1J,
ANTHIAS-20).

List it in the video task's ``throws``: Celery then logs it at INFO
without a traceback, and sentry-sdk's CeleryIntegration skips
``task.throws`` exceptions (``_capture_exception`` returns early on
``isinstance(exc, task.throws)``), so the gate stops flooding Sentry.
``on_failure`` still runs, so the operator-facing error pill and recipe
are unchanged.

Regression test asserts the video task declares it in ``throws`` and the
image task (which never raises it) does not.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 08:45:01 +02:00
Viktor Petersson
10c68b26cc feat(viewer,build,balena): add arm64/Qt6 pi3-64 board and the Rock Pi 4 fleet; keep 32-bit pi3 as legacy (#2985)
* feat(viewer,build): add arm64/Qt6 pi3-64 board; keep 32-bit pi3 as legacy

Revises issue #2906 Phase 2. The original plan (delete the Qt 5 toolchain,
force Pi 2/Pi 3 onto Qt 6) is abandoned: Qt 5 was fixed up on master and
stays. Instead, add a NEW board target `pi3-64` — a 64-bit (arm64) Qt 6
viewer image for Raspberry Pi 3 hardware on a 64-bit OS — as its own image
stream, disk image, and balena fleet. The legacy 32-bit armhf/Qt5 `pi3`
board is left untouched and flagged as legacy/maintenance.

pi3-64 mirrors the existing `pi4-64` path (Qt 6, eglfs_kms; video played
in-process by AnthiasViewer's QtMultimedia pipeline — QMediaPlayer + the
ffmpeg/libavcodec backend with V4L2 HW decode, no external player).
VideoCore IV is H.264-only HW decode. Board selection is by `uname -m`: a
Pi 3 on a 64-bit OS gets `pi3-64`, a 32-bit OS keeps `pi3` (the model
string is identical on both arches).

- image_builder: pi3-64 build params (arm64) + is_qt6; constants.
- Dockerfile.viewer.j2 + start_viewer.sh: pi3-64 shares the pi4-64 eglfs
  KMS path; renamed board-agnostic eglfs-kms-pi4.json -> eglfs-kms.json.
- Detection: install.sh / upgrade_containers.sh (aarch64 Pi 3 -> pi3-64).
- Runtime: media_player force_mpv set (selects MPVMediaPlayer, the
  QtMultimedia D-Bus shim); processing codec grid {'h264'}.
- CI: docker-build matrix + mirror-latest-tags.
- Balena (fleet screenly_ose/anthias-pi3-64, device type raspberrypi3-64):
  disk-image + manual-deploy workflows, balena_ota_deploy.sh,
  balena_fleet_maintenance.py, balena_unpin_devices.py, deploy_to_balena.sh,
  balena-host-config.json.
- Pi Imager: SUPPORTED_BOARDS += pi3-64 (non-maintenance); pi3 stays legacy.
- Docs + tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(website): link the Pi 3 (64-bit) bullet like its siblings

Copilot review: the list is introduced as 'links to the images', so the
new pi3-64 entry should be navigable like the surrounding bullets. Link
the label to the release-images section.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(balena): add the Rock Pi 4 fleet (screenly_ose/anthias-rockpi4)

Wires the anthias-rockpi4 balena fleet (device type rockpi-4b-rk3399)
into the OTA deploy + disk-image pipeline. The fleet has no
board-specific image build: it runs the generic arm64 containers, so
bin/balena_ota_deploy.sh / bin/deploy_to_balena.sh map the rockpi4
board to the <short-hash>-arm64 image tags (and strip the /dev/vchiq
mount — no VideoCore on RK3399), and the disk-image preflight verifies
the arm64 images exist.

Root-cause fix for the fleet's codec gate: balena ships no
anthias_host_agent service, so host:board_subtype was never published
and resolve_device_key() stayed 'arm64' — whose HW-decode set is empty,
rejecting every video upload. The model-string → subtype table moves to
the dependency-free anthias_common.device_helper.detect_board_subtype
(single source, imported by host_agent), and
anthias_common.board.get_board_subtype now falls back to reading
/proc/device-tree/model in-container when Redis has no value. The
device tree is kernel-global — the same mechanism get_device_type has
always used for Pi detection — so the rockpi4 fleet resolves its
{h264, hevc} envelope without a host-side daemon, and compose installs
whose host_agent died self-heal too.

- build-balena-disk-image.yaml: rockpi4 in both matrices, fleet +
  rockpi-4b-rk3399 image cases, arm64 images in the preflight check.
- deploy-balena-manual.yaml: rockpi4 board option.
- balena-host-config.json: rockpi4 declared {} (config.txt is
  RPi-only; the reconcile hard-fails on a missing key).
- balena_fleet_maintenance.py / balena_unpin_devices.py: fleet added.
- tests: get_board_subtype Redis-first + device-tree-fallback order;
  detect_board_subtype patch targets follow the move.
- docs: board-enablement, balena-fleet-host-config,
  installation-options.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-07 07:49:12 +02:00
Viktor Petersson
b57c1a16a7 feat(viewer,server): 1 GB SBC enablement — low-RAM degradation gates (#2915)
Boards with < 1.5 GiB MemTotal (Pi 2/Pi 3 1GB, Pi 4 1GB, Rock Pi 4 1GB,
generic-arm64 1GB SKUs) OOM-cycled when QtMultimedia loaded a 4K HEVC asset
alongside the two QtWebEngine renderers introduced by #2905. On-device repro
on a 1 GB Rock Pi 4 confirmed `global_oom` on the container's bash process
followed by a restart loop, plus the kernel keeping sshd in banner-exchange
until power-cycle. This patch puts the device into a graceful degraded mode
before the OOM cascade fires.

  * bin/upgrade_containers.sh — exports ANTHIAS_LOW_RAM=1 when
    TOTAL_MEMORY_KB < 1572864 (1.5 GiB), 0 otherwise. Threshold cleanly
    splits the 1 GB SKUs from the 2 GB+ SKUs in the supported fleet.
  * docker-compose.yml.tmpl — forwards ANTHIAS_LOW_RAM to the viewer
    container.
  * anthias_host_agent — publishes host:total_mem_kb to Redis alongside the
    existing host:board_subtype so server-side gates can read MemTotal
    without re-opening /proc/meminfo themselves.
  * anthias_common.board — adds LOW_RAM_THRESHOLD_KB, get_total_mem_kb(),
    is_low_ram_device() helpers.
  * anthias_webview (view.cpp) — when ANTHIAS_LOW_RAM=1, aliases webView2
    onto webView1 so the rest of the dual-buffer logic still runs but never
    spawns a second Chromium renderer (~100 MB physical RAM saved per
    device). UX: page swap is in-place with a brief blank during load, no
    preloaded crossfade.
  * anthias_server.processing — extends the codec gate with a low-RAM 1080p
    resolution cap. Above-1080p uploads on low-RAM boards are rejected at
    upload with the existing recipe machinery, extended to inject
    `-vf scale=1920:1080:force_original_aspect_ratio=decrease` so the
    operator's re-encode lands within the envelope. If an upload fails BOTH
    codec and resolution gates, the codec message wins but the recipe folds
    in the downscale so a single re-encode satisfies both.
  * Diagnostics page — Memory card surfaces a "Low-RAM mode" badge with the
    threshold MiB so operators can see why the device degraded. /api/v2/info's
    `memory` field gains a `low_ram: bool` for API clients.
  * docs/board-enablement.md — rewrote the stale `--hwdec=drm-copy` /
    per-codec dispatch text (removed in #2905); documented the known rkvdec
    mainline limitation on Armbian 6.18 (HEVC stateless engages via
    `-hwaccel drm` but produces decode errors; H.264 has no v4l2_request
    binding in +rpt1 7.1.3) and the new low-RAM mode.

Tests cover the four matrix cells (low/high-RAM × in/over-cap), the recipe
shape with and without `cap_to_1080p`, the cap defence against
unknown / zero dimensions, host_agent's MemTotal parser, and the API
endpoint's new low_ram field.

Out of scope (separate work): HEVC HW-decode on arm64 — depends on an
upstream rkvdec driver fix landing in Debian-shipped Armbian kernels;
Anthias does not maintain its own kernel/distro.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 07:48:46 +02:00
Viktor Petersson
57b4f25c77 feat(viewer,server): per-board HW decode dispatch + codec gate on upload (#2885)
* perf(viewer): pi4-64/pi5 use mpv --vo=gpu --gpu-context=drm

On Pi the connector's preferred mode is usually 4K (most modern
TVs report 3840x2160 in their EDID), and the previous --vo=drm
path ran a CPU zimg upscale from 1080p source to that 4K output.
On a 4-core A72 that's the bottleneck — mpv VO drops 59-75
frames per 30s on a stock 1080p H.264 signage clip. Pi5's A76
is faster but the same upscale path is still the limit.

Switching the VO to GL with the DRM context (mpv --vo=gpu
--gpu-context=drm) hands the upscale to the V3D and leaves
everything else identical — mpv still owns DRM master, still
reads --drm-mode=1920x1080@60 (kept), still runs in
--vd-lavc-threads=4 software decode (mpv 0.40 in Debian Trixie
has v4l2m2m-copy but not v4l2request, so --hwdec=auto-safe
falls back to software on this asset; that hasn't changed).

Measured on a 4K-connected Pi4-64 Rev 1.5, same clip, same 30 s
window:

  --vo=drm                                : 59-75 vo drops / 30 s
  --vo=gpu --gpu-context=drm (this patch) : 3-6 vo drops / 30 s

`decoder-frame-drop-count` is 0 in both — the regression was
purely on the VO side, and shifting scaling off the CPU is what
buys the headroom.

x86 (cage + --gpu-context=wayland) is unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(viewer): drop --drm-mode pin on Pi4-64/Pi5 under --gpu-context=drm

The previous commit moved Pi4-64/Pi5 to `mpv --vo=gpu
--gpu-context=drm` but kept the `--drm-mode=1920x1080@60` pin
from the old --vo=drm path. On-device testing showed the pin
*hurts* throughput under GBM: 294 vo drops/30s with the pin,
3-6 without, on the same 4K-connected Pi4 and the same H.264
clip.

The pin existed in the first place to dodge CPU zimg upscale to
4K, which the A72 couldn't keep up with on the legacy --vo=drm
path. Under --gpu-context=drm the V3D does the scaling for free
at the connector's preferred mode, so the workaround is no
longer needed and is in fact harmful.

`--vd-lavc-threads=4` stays — software decode under
--hwdec=auto-safe (mpv 0.40 has v4l2m2m-copy but not
v4l2request) still benefits from explicit threading.

Verified on a 4K-connected Pi4-64 across H.264 (30/24 fps) and
HEVC clips: 2-6 vo drops/30s in every case.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(viewer): consolidate Qt6 boards onto cage + Wayland, pin Pi 4 to 1080p

Folds in PR #2883: Pi 4-64 / Pi 5 now run under cage with mpv on
--vo=gpu --gpu-context=wayland, joining x86 and arm64 on a single
Wayland-based display stack. Drops the --vo=drm legacy path
entirely from MPVMediaPlayer. Qt 5 boards (pi2 / pi3) stay on
linuxfb via VLCMediaPlayer — out of scope here.

Replaces the perf branch's `--vo=gpu --gpu-context=drm` standalone
fix with the consolidated cage path. The previous standalone
finding (3-6 vo drops / 30 s on Pi 4 at 4K) was a Pi-without-cage
optimization; once Pi runs under cage like every other Qt6 board,
the same trick applies via wayland but cage's composite step adds
its own pass and the V3D on Pi 4 can't keep up at 4K (738 vo
drops / 30 s measured at native 4K under cage). Fix: move the
1080p mode pin one layer up from app code to host config — the
new ansible/.../cmdline.txt.j2 conditional appends
`video=HDMI-A-1:1920x1080@60 video=HDMI-A-2:1920x1080@60` when
`device_type == 'pi4-64'`. With output pinned to 1080p there's no
upscale anywhere in the pipeline, matching the bandwidth profile
of today's --vo=drm production setup.

Pi 5 / x86 / arm64 keep the connector's preferred mode (typically
4K). Pi 5's V3D 7.1 has roughly 2× Pi 4's throughput; x86 iGPUs
handle 4K via VAAPI; arm64 SBC perf varies by SoC.

Other notable changes folded in from #2883:

* tools/image_builder/utils.py — `cage` + `qt6-wayland` move out
  of the per-board branch into the shared is_qt6 block.
  `wlr-randr` (was x86-only) goes in the shared block too since
  rotation now happens via wlr-randr on every Qt6 board.
  `va-driver-all` stays x86-only (no VAAPI on Pi / ARM SoCs).
* docker/Dockerfile.viewer.j2 — QT_QPA_PLATFORM=wayland gated on
  is_qt6 instead of board in ('x86', 'arm64').
* bin/start_viewer.sh — case on DEVICE_TYPE: every Qt6 board
  takes the cage + sudo path. Pi2 / Pi3 stay on the legacy
  direct-sudo path.
* src/anthias_viewer/media_player.py — single --vo=gpu
  --gpu-context=wayland for all reachable device types. The
  per-board rotate_args block is gone: every Qt6 device inherits
  the transform from cage via wlr-randr, so mpv would
  double-rotate if it set --video-rotate.
* tests/test_media_player.py — parametrised tests for all four
  Qt6 boards (x86, arm64, pi4-64, pi5) hitting the same VO path;
  rotation tests assert mpv *never* sets --video-rotate under
  cage.
* website/data/faq.yaml — rotation entry points at Settings page
  / wlr-randr; resolution entry calls out the Pi 4 1080p pin.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(ansible): propagate tags into boot.yml include_tasks

The `Configure boot partition` task in system/tasks/main.yml was
tagged `touches-boot-partition` / `raspberry-pi` but those tags
weren't propagated to the tasks inside boot.yml — Ansible's
default include_tasks behaviour matches the include against
--tags but leaves the included tasks tag-less, so they get
filtered back out. Running `ansible-playbook ... --tags
touches-boot-partition` therefore did nothing.

Use the explicit `apply: tags:` form so the include's tags are
copied onto each task in boot.yml. With this, the standalone
"re-render boot config" workflow actually works, which matters
on Pi 4 now that the 1080p HDMI mode pin in cmdline.txt.j2
needs to land without re-running the whole playbook.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): keep Pi 4 on linuxfb; only Pi 5 / x86 / arm64 go cage

On-device testing on a Pi 4 Model B Rev 1.5 with a 4K HDMI display
showed cage+wayland is fundamentally too heavy for the V3D 6.0:

  --vo=drm    (existing, no cage)                : 59-75 drops/30s
  --vo=gpu --gpu-context=drm  (no cage, GPU scale): 3-6 drops/30s
  --vo=gpu --gpu-context=wayland (cage, even at  : 730+ drops/30s,
    1080p HDMI cmdline pin to avoid 4K scale)      mpv at 99% CPU
                                                   running ~1/4×
                                                   real time

The 1080p HDMI pin doesn't recover Pi 4 — cage's composite pass
costs more than the V3D 6.0 has spare bandwidth for, regardless
of output resolution, with the webview running in the background
or not. Pi 5's V3D 7.1 has roughly 2× the throughput and is
expected to keep up; x86 / arm64 already shipped on cage and
remain unchanged.

Net result:

  * Pi 4-64 stays on Qt linuxfb (no compositor) with mpv on
    --vo=gpu --gpu-context=drm. mpv writes straight to KMS via
    libgbm and lets the V3D do video scaling — keeping the
    standalone perf-branch finding that drops from 59-75 → 3-6
    on the same clip.
  * Pi 5 / x86 / arm64 stay (or move) onto cage + qt6-wayland +
    wlr-randr with mpv on --vo=gpu --gpu-context=wayland.
  * Pi 2 / Pi 3 stay on the Qt5 + VLC + linuxfb track they were
    already on.
  * The Pi 4 1080p HDMI cmdline pin added in the previous commit
    is reverted (no longer needed without cage).
  * Rotation handling: mpv emits --video-rotate=N on Pi 4 (no
    compositor to apply the transform) and skips it on the cage
    boards (wlr-randr handles it there).

Goal-wise this is the partial-consolidation we agreed to as last
resort: three of four Qt6 boards share one Wayland stack, Pi 4
keeps the framebuffer path for as long as the V3D 6.0 + mpv 0.40
combo lacks the headroom. Pi 4 remains in scope for revisiting
once mpv ships the v4l2request hwdec.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): mirror host render-GID for all Qt 6 boards, not just cage

mpv uses /dev/dri/renderD128 for --vo=gpu on every Qt 6 board
now — wayland (cage path on x86 / arm64 / pi5) and drm (linuxfb
path on Pi 4) both go through Mesa GL. The render-GID mirror was
inside the cage branch of start_viewer.sh, so Pi 4's mpv ran as
viewer user, hit the render node owned by GID 992, got
"Permission denied", and bailed with "Failed initializing any
suitable GPU context!".

Hoist the render-GID setup above the per-board case so it runs
for every Qt 6 board. cage / linuxfb branching stays as-is.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): Pi 4 stays on --vo=drm (Qt linuxfb DRM master contention)

Earlier commits switched Pi 4 to mpv --vo=gpu --gpu-context=drm
based on a 3-6 vo-drop/30 s measurement. That test was run as
root in a fresh container — no Qt linuxfb in the picture. In
the production viewer where AnthiasWebview holds the framebuffer
via Qt linuxfb, --vo=gpu fails:

  failed to open /dev/dri/renderD128: Permission denied
  [vo/gpu/drm] Failed to acquire DRM master: Permission denied
  [vo/gpu] Failed initializing any suitable GPU context!
  Error opening/initializing the selected video_out (--vo) device.
  Video: no video

Mesa GBM holds DRM master persistently and contends with Qt
linuxfb's framebuffer use. mpv's classic --vo=drm has its own
master juggling (briefly grab → render → drop) that coexists
fine with linuxfb — that's why master's existing Pi 4 config
works.

Revert Pi 4 mpv flags to the production master config:
  --vo=drm --drm-mode=1920x1080@60 --vd-lavc-threads=4

The standalone perf-finding from this branch's earlier history
turns out not to apply in production; retracted from the
roll-up. Pi 5 / x86 / arm64 unchanged (they're on cage +
--vo=gpu --gpu-context=wayland, which has its own DRM master
flow via cage).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): cage opens on the first connected connector, not HDMI-A-1

Without `-o`, cage uses whatever output the DRM backend enumerates
first — typically HDMI-A-1 on Pi 5 (closer to USB-C) and the
on-board panel / first HDMI on x86 / arm64. If the operator plugs
into the *other* port (Pi 5 HDMI-A-2, or any DP connector on
x86), cage renders to a disconnected connector and the screen
stays black.

start_viewer.sh now iterates /sys/class/drm/card*-*, picks the
first connector whose status reads "connected", strips the
cardN- prefix to get the bare name cage expects (HDMI-A-1,
HDMI-A-2, DP-1, eDP-1, …), and passes it via `-o`. Falls back to
letting cage pick if nothing is connected yet — the display may
come up via HPD after cage starts, or this is a build/CI host
with no display at all.

Caught while end-to-end testing on the rig: Pi 5 cable on
HDMI-A-2 went to a black screen even though `cat
/sys/class/drm/card1-HDMI-A-2/status` reported "connected" and
cage / the viewer were running.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(viewer): mpv from apt.raspberrypi.com on Pi 4 / Pi 5, hwdec auto-copy

Stock Debian Trixie's mpv 0.40 is compiled without `v4l2request`
hwdec, so Pi 5's Hantro stateless decoder is invisible to it and
mpv falls back to software decode for every H.264 / H.265 source.
Pi 4's V4L2 M2M decoder is reachable via `v4l2m2m-copy` but mpv's
`--hwdec=auto-safe` whitelist explicitly excludes that method, so
auto-detect picked software there too.

Two changes, applied together because they only make sense
together:

* Pi 4 / Pi 5 viewer images now pull mpv (and the FFmpeg library
  family it depends on) from `archive.raspberrypi.com/debian
  trixie main`. The Pi-tuned build ships `v4l2request` hwdec
  (Pi 5) and a maintained `v4l2m2m-copy` (Pi 4). An apt-pin
  restricts the Pi repo to the mpv + libav* packages only, so
  curl / ca-certificates / etc. continue to come from stock
  Debian and the rest of the image stays on the same baseline.
* `MPVMediaPlayer.play()` switches `--hwdec=auto-safe` →
  `--hwdec=auto-copy`. auto-copy is the same family but with a
  broader whitelist that *includes* the v4l2-family copy hwdecs.
  Net effect: x86 still picks vaapi-copy (unchanged), Pi 4 picks
  v4l2m2m-copy, Pi 5 picks v4l2request, arm64 falls through to
  software (no v4l2request in stock Debian mpv, no vendor-tuned
  Rockchip plugin in stock either — Tier-2 follow-up).

Plus an `ANTHIAS_DEBUG_DROPS=1` env knob: when set on the viewer
container, mpv's stdout/stderr go to `/data/.anthias/mpv.log`
(host-bound) instead of `/dev/null`, and `--no-terminal` is
dropped so the status line ("AV: ... Dropped: N") is emitted.
Lets us read per-asset frame-drop counts straight from the
production viewer pipeline (no custom harness, no rebuild)
during the test-grid runs. Default (unset) preserves the silent
behaviour.

Also: drops the `cage -o <connector>` autodetect attempt — cage
0.1.x in Trixie doesn't accept `-o`, just `-m last`. Use that
instead so cage opens on the most-recently-connected output
regardless of HDMI-A-N enumeration order.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): use deb-packaged Pi keyring for archive.raspberrypi.com

apt update against http://archive.raspberrypi.com/debian trixie
was failing in the Pi 4 / Pi 5 viewer image builds:

  Sub-process /usr/bin/sqv returned an error code (1):
  Signing key on CF8A1AF502A2AA2D763BAE7E82B129927FA3303E is not
  bound: No binding signature at time …
  Policy rejected non-revocation signature (PositiveCertification)
  requiring second pre-image resistance
  SHA1 is not considered secure since 2026-02-01

Pi's bare `raspberrypi.gpg.key` URL still serves the original
2012-vintage RSA 2048 key with SHA1 binding signatures that
Trixie's sqv refuses to certify under the post-2026-02-01
crypto policy. The deb-packaged keyring inside
`raspberrypi-archive-keyring_2025.1+rpt1_all.deb` ships the
*same* key fingerprint but with rebuilt binding signatures
that sqv accepts — that's the keyring Pi OS Trixie itself
installs, which is why `apt update` against this exact repo
works on a real Pi 5 device today.

Fetch the deb directly with curl, extract its bundled
`.pgp` keyring, and point `signed-by=` at the installed copy.
The pin block restricts what packages the Pi repo can supply
(mpv + libav* + ffmpeg + libpostproc — the FFmpeg family),
so the rest of the image keeps its stock-Debian baseline.

Also extend the pin to cover libpostproc* and ffmpeg, since
mpv's apt deps drag those into the Pi-tagged version on
install; without the pin extension, apt rejected the resolve
with "broken packages".

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(viewer): per-codec hwdec on Pi via Lua hook

mpv 0.40's `--hwdec` accepts a single value at startup, so we
can't ask it to try v4l2m2m-copy for H.264 *and* drm-copy for
HEVC out of the box. The Pi-tuned mpv from
archive.raspberrypi.com supports both hwdec methods but each
covers a different codec subset:

* v4l2m2m-copy — Pi 4's V3D V4L2 M2M decoder. H.264 works; Pi
  5's Hantro G2 is V4L2-stateless-only so this no-ops there.
* drm-copy — FFmpeg's `v4l2_request_hevc` hwaccel. HEVC only,
  works on both Pi 4 and Pi 5.

Add a small `on_load` Lua hook (inlined as `_PI_HWDEC_LUA`,
written to /tmp on first play(), loaded with `--script=`) that
checks `video-codec-name` and picks the right hwdec at file
open. Net effect:

  Pi 4 H.264 → v4l2m2m-copy   (HW)
  Pi 4 HEVC  → drm-copy       (HW)
  Pi 5 H.264 → v4l2m2m-copy   (no device, falls back to SW
                                — only path until mpv re-adds
                                v4l2_request_h264 hwdec)
  Pi 5 HEVC  → drm-copy       (HW)

The base `--hwdec=auto-copy` startup value still applies on
x86 / arm64 (vaapi-copy on Intel/AMD; software fall-back on
Rockchip), where the hook isn't loaded.

Verified on real hardware:
  $ mpv ... --script=/tmp/anthias-pi-hwdec.lua test_hevc.mp4
  [pi-hwdec] codec=hevc -> hwdec=drm-copy
  Using hardware decoding (drm-copy).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer,server): HW-decode everywhere on Pi 4 / Pi 5 / x86

The previous per-codec Lua hook in media_player.py was a silent no-op:
mpv's video-codec-name property is empty at every script event before
hwdec init (on_load, on_preloaded), so --hwdec=auto-copy leaked through.
auto-copy's upstream whitelist excludes v4l2m2m-copy, so H.264 on Pi 4
fell back to software despite the V3D V4L2 M2M decoder being available.

Viewer (src/anthias_viewer/media_player.py)

- Replace the Lua hook with ffprobe-driven dispatch from Python at
  launch time. ffprobe is in the viewer image; the call is ~50 ms.
- Per-board mapping: Pi 4 → {h264: v4l2m2m-copy, hevc: drm-copy};
  Pi 5 → {hevc: drm-copy}. Pi 5 H.264 falls back to auto-copy
  because mpv has no v4l2-request H.264 hwdec for the Hantro G1,
  and passing v4l2m2m-copy there just logs "Could not find a valid
  device" before SW-falling-back.
- Live-verified on Pi 4: "Using hardware decoding (v4l2m2m-copy)"
  for 1080p H.264 and "Using hardware decoding (drm-copy)" for
  HEVC at 1080p and 4K.

Asset processor (src/anthias_server/processing.py)

- Pi 5 profile drops H.264 from passthrough_video_codecs — Pi 5
  has no mpv H.264 HW path, so H.264 uploads must transcode to HEVC
  at upload time to keep the HW-decode-everywhere contract.
- Pi 4 profile adds passthrough_video_max_pixels for H.264, capped
  at 1080p (1920*1080). 4K H.264 clears the codec gate but the V3D
  H.264 envelope tops at 1080p60, so the cap forces it through a
  libx265 re-encode at upload time. HEVC keeps no cap (the
  dedicated HEVC block handles 4Kp60).
- _ffprobe_summary now returns video_pixels alongside codec /
  container / audio_codec; _video_can_passthrough enforces the
  per-codec pixel cap when the profile declares one.

Tests

- test_media_player.py: new per-board hwdec tests (Pi 4 H.264 →
  v4l2m2m-copy; Pi 5 H.264 → auto-copy; both → drm-copy for HEVC;
  auto-copy fallback when ffprobe fails; no probe on x86 / arm64).
- test_processing.py: matrix tests updated to include video_pixels;
  parametrised rows now exercise Pi 5 H.264-no-passthrough and the
  Pi 4 4K H.264 cap. New end-to-end tests prove
  _run_video_normalisation transcodes Pi 5 H.264 → HEVC and Pi 4
  4K H.264 → HEVC.

Docs (docs/board-enablement.md, new)

- Goal + per-board HW-decode capability table.
- Asset processor codec policy spelled out as a contract.
- BBB test bed recipe (source clips, libx265 transcode commands,
  ANTHIAS_DEBUG_DROPS=1, mpv.log slicing).

Follow-up: Pi 5 4K HEVC HW

The Hantro G2 decoder can't allocate 4K dst buffers from Pi 5's
default 64 MB CMA ("v4l2_request_hevc_start_frame: Failed to get
dst buffer") and SW-falls-back. Adding cma=512M to the kernel
cmdline does NOT work — the kernel takes the cmdline value over
the device-tree linux,cma node, orphaning rpi-hevc-dec ("Failed
to probe hardware -517") and unpopulating /dev/video*, which
kills HEVC HW at every resolution. The right fix is a
dtparam/dtoverlay in /boot/firmware/config.txt that resizes the
existing DT-declared region without orphaning the codec's
reserved-mem reference. Until that lands, the pi5 profile should
downscale 4K → 1080p HEVC. Documented in cmdline.txt.j2 and
docs/board-enablement.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test(viewer,server): mock _probe_video_codec; fix mypy on Popen IO types

CI failures on the previous commit (bb27b186) came from:

* ``subprocess.run`` inside ``_probe_video_codec`` blowing up under
  the existing ``mpv`` fixture, which patches ``subprocess.Popen``
  to a MagicMock. ``subprocess.run`` internally instantiates Popen
  for the ffprobe shellout, gets a MagicMock back, then trips on
  unpacking communicate()'s result. Fixed by default-mocking
  ``_probe_video_codec`` in the fixture (returns '' so dispatch
  falls back to 'auto-copy', preserving legacy assertions) and
  layering the same mock onto the standalone rotation tests that
  build MPVMediaPlayer outside the fixture.

* ``ruff format``: the multi-line ffprobe arg list in
  ``_probe_video_codec`` needed splitting one-arg-per-line.

* ``mypy``: typing the popen_stdout / popen_stderr locals as
  ``object`` couldn't satisfy any Popen overload. Switched to
  ``int | IO[bytes]`` which covers both the DEVNULL / STDOUT
  sentinels and the bind-mounted mpv.log file handle.

* ``test_passthrough_containers_match_real_ffprobe_format_names``
  was pinned to the pi5 profile to exercise the H.264 + HEVC
  passthrough path; pi5 no longer passthroughs H.264, and the
  fake summary it constructs has no width/height (so pi4-64's
  cap fails it too). Switched the pin to x86, which has no
  per-codec caps — the test is about *container* recognition, not
  codec/resolution gating.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server): downscale 4K HEVC → 1080p on Pi 5 (CMA workaround)

Pi 5's Hantro G2 HEVC decoder is rated for 4Kp60 but the stock 64 MB
CMA on Pi OS can't fit a 4K HEVC dst-buffer pool — at 4K mpv hits
``v4l2_request_hevc_start_frame: Failed to get dst buffer`` and
silently SW-falls-back. Bumping cma= on the kernel cmdline orphans
``rpi-hevc-dec`` entirely (the kernel takes the cmdline value over
the device-tree linux,cma node, leaving the driver returning
``Failed to probe hardware -517``), so the kernel-side knob isn't
available without a dtoverlay change.

Until that follow-up lands, the asset processor caps Pi 5 HEVC at
1080p both ways:

* ``passthrough_video_max_pixels`` gates 4K HEVC uploads out of
  passthrough — anything wider than 1920×1080 falls through to a
  re-encode.
* New ``transcode_video_max_pixels`` per-codec field tells
  ``_transcode_to_target`` to emit a
  ``-vf scale='if(gt(ih,1080),-2,iw)':'min(ih,1080)'`` filter that
  caps height at the 16:9 budget (cap_h = floor(sqrt(cap × 9/16))).
  Portrait 4K → 1080p height; landscape 4K → 1920×1080. Sub-1080p
  sources are untouched (the ``min()`` guard prevents upscale; ``-2``
  on width keeps libx265 happy with even dimensions).

Pi 4 / x86 don't carry the cap (their HW decoders handle 4Kp60
cleanly), so the filter stays absent from those profiles.

Tests cover (a) the new pi5+hevc+4K row in the parametrised
passthrough matrix (False at 4K, True at 1080p), (b) ffmpeg argv
shape: -vf scale=... emitted for pi5 HEVC, absent for pi4-64 HEVC.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer,system): Pi 5 4K HEVC HW + display-resampled VO sync

Two tied changes that move every supported board to clean HW
decode at the source's actual framerate.

Pi 5 4K HEVC via cma-512
------------------------

Pi OS for Pi 5 reserves 64 MB of CMA by default. The Hantro G2
HEVC decoder needs a buffer pool large enough to hold several 4K
dst frames (each ~12 MB) plus reference frames, so the stock
allocation can fit 1080p HEVC but not 4K — at 4K mpv hits
``v4l2_request_hevc_start_frame: Failed to get dst buffer`` and
silently SW-falls-back.

Adding ``cma=512M`` to /boot/firmware/cmdline.txt does NOT work:
the kernel takes the cmdline value over the device-tree
``linux,cma`` node, which orphans ``rpi-hevc-dec`` entirely
(returns ``Failed to probe hardware -517`` and ``/dev/video*``
disappears, killing HEVC HW at every resolution).

The Pi-OS-blessed merge is ``dtoverlay=vc4-kms-v3d,cma-512`` in
/boot/firmware/config.txt — the v3d overlay carries its own
``cma-N`` parameter that resizes the DT linux,cma node in place
without orphaning the codec driver. A standalone
``dtoverlay=cma,cma-512`` silently no-ops on Pi 5 because the
v3d overlay initialises the CMA region first; reusing the v3d
overlay's parameter is the documented way to merge them.

ansible/roles/system/templates/config.txt.j2 now emits the
``,cma-512`` parameter on Pi 5 only — Pi 4 already gets 512 MB
CMA by default so the override is a no-op there. The earlier
attempt at a kernel-cmdline cma= override (in cmdline.txt.j2) is
removed; the file's comment now points readers at the correct
config.txt path.

Live-verified on Pi 5: CmaTotal=512MB after the overlay change,
/dev/video* present, rpi-hevc-dec probes cleanly. Asset processor
pi5 profile no longer carries a HEVC pixel cap — Pi 5 can decode
HEVC at its silicon's real capability.

mpv --video-sync=display-resample
---------------------------------

mpv 0.40 defaults to ``--video-sync=audio`` which syncs the video
clock to the audio clock and drops VO frames when the two drift.
On every board tested (Pi 4 --vo=drm, Pi 5 + x86 --vo=gpu
--gpu-context=wayland) this produced 60–90% VO drops at 60 fps
content even when the decoder reported healthy HW decode
(``Using hardware decoding (...)`` banner present, no decoder
errors). The drops were at the VO, not the decoder.

``--video-sync=display-resample`` flips the relationship: sync
video to the display refresh and resample audio to match. Audio
resampling is a <1% CPU 2-channel job and most signage clips
have no audible content anyway, so it's effectively free; the
benefit is clean playback at the source's frame rate.

Test bed touched
----------------

* test_play_invokes_popen_with_expected_args_on_pi4_64: argv
  now includes ``--video-sync=display-resample``.
* test_video_can_passthrough_respects_board_codec_set: pi5 +
  hevc + 4K is now ``True`` (passthrough) because the CMA fix
  lets the silicon do its rated job. Comment updated to point
  at config.txt.j2.
* Removed the transient downscale-on-Pi 5 codepath
  (``transcode_video_max_pixels`` field, the
  ``-vf scale='if(gt(ih,...))':...`` filter, and the two tests
  asserting it) — that was a workaround for the CMA issue and
  is no longer needed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server): introduce PlaybackEnvelope dataclass + matrix + cache

Foundation for the per-board playback envelope rollout (see
/home/ubuntu/.claude/plans/serene-munching-gem.md). No behaviour
change yet — wires up the canonical source of truth that
processing.py, celery_tasks.py's future re-render walker, and the
viewer's hwdec dispatch will all read from in the next commit.

src/anthias_server/playback_envelope.py (new)
---------------------------------------------

Frozen dataclass ``PlaybackEnvelope`` carrying codec / max_width /
max_height / max_fps plus a fixed ``container_ext = 'mp4'``.
``ENVELOPE_BY_DEVICE_TYPE`` maps every supported board:

* pi2 / pi3 / arm64 → H.264 1920x1080 30 (no HEVC silicon /
  no upstream mpv HW path)
* pi4-64 / pi5 / x86 → HEVC 3840x2160 60 (dedicated HEVC block
  or VAAPI; fleet uniformity so the same upload produces
  bit-identical variants on every board)

``compute_envelope()`` resolves the current process's envelope
from DEVICE_TYPE; unset / unknown / mixed-case / whitespace all
fall back to the conservative default (H.264 1080p30).

``load_cached()`` / ``save_cached()`` round-trip the envelope to
``~/.anthias/playback-envelope.json``. Cache corruption (missing
file, bad JSON, unsupported codec) returns ``None`` so the caller
recomputes and overwrites — a hand-edit that breaks the file
self-heals on next start. ``save_cached`` writes atomically via
temp-file + rename.

src/anthias_server/processing.py
--------------------------------

``_ffprobe_summary`` now returns ``video_fps`` alongside the
existing keys. The next commit (Phase 2) uses this to decide
whether to emit ``-r envelope.max_fps`` — the cap is one-way, so
sub-cap source rates pass through unchanged. r_frame_rate is
parsed as a rational ``num/den``; unparseable / zero-denominator
collapses to ``None`` so the caller treats source fps as
"unknown" and skips the gate.

tests
-----

* tests/test_playback_envelope.py (new): matrix coverage; unset /
  unknown / cased / whitespace inputs; cache round-trip; missing
  / corrupt JSON / invalid-payload recovery; atomic write
  (no leaked .tmp); container_ext invariant.
* tests/test_processing.py: positive video_fps cases (integer
  rates, NTSC drop-frame 30000/1001 + 60000/1001, bogus / no-slash
  / zero-denominator inputs); the two ``assert summary == { ... }``
  ffprobe-recovery tests now include the new ``video_fps: None``
  key.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server): envelope-driven asset processor with sibling-original

Refactor ``processing.py`` so every video upload produces a
variant matching the board's playback envelope while preserving
the source as a sibling ``.original.<ext>`` file. Rotation is now
gapless by construction — every variant on disk shares one codec /
max resolution / max fps per board, so the viewer's output mode
never has to switch mid-clip.

src/anthias_server/processing.py
--------------------------------

* Replace ``_BOARD_PROFILES`` + ``_resolve_board_profile`` +
  ``_PI4_H264_MAX_PIXELS`` + ``_BoardProfile`` typedef with
  ``compute_envelope()`` from the new ``playback_envelope`` module
  (landed in 0b6bea0c). One canonical source of truth for "what
  every variant on disk looks like".

* ``_ffprobe_summary`` now returns per-axis dimensions
  (``video_width``, ``video_height``) alongside the existing
  ``video_pixels`` total. The envelope check is per-axis so an
  ultrawide source (e.g. 5760×1080) gets caught by the width cap
  even though its total pixel count is below 4K's.

* ``_video_can_passthrough(summary, envelope)`` is the new
  contract: passthrough iff (a) container is mp4, (b) codec
  matches envelope.codec exactly, (c) both axes are within the
  envelope cap, (d) source fps is at-or-under envelope.max_fps,
  (e) audio is demuxer-compatible. Any None in source dims / fps
  bails to transcode (we don't gamble on unsized clips).

* ``_transcode_to_target(input, output, envelope=None,
  source_summary=None)`` emits the smallest set of flags that
  lands the output inside the envelope. ``-vf scale=...`` only
  when source > envelope on either axis; ``-r envelope.max_fps``
  only when source fps > cap. The fps cap is one-way — we never
  up-convert a sub-cap source. New helper
  ``_video_args_for_codec`` picks libx264 / libx265 from the
  envelope's codec.

* ``_run_video_normalisation`` reorganised around the sibling-
  original pattern:
  - Fresh upload / legacy asset: rename ``Asset.uri`` to
    ``<base>.original.<ext>`` (the source-preservation step).
  - Re-render: read from the existing ``.original.*`` sibling
    instead.
  - Re-probe from the (possibly new) source location.
  - Passthrough branch: copy source → variant slot bitwise
    (cross-device fleet sha256 stays equal).
  - Transcode branch: staging-file render with the existing
    atomic-replace contract.
  - Stamp ``metadata['original_uri']`` (path to sibling),
    ``metadata['envelope']`` (envelope dict the variant matches).
    ``metadata['transcode_target']`` kept as the
    ``envelope.codec`` duplicate for one release of back-compat
    with the serializer surface.

Tests
-----

* ``test_video_can_passthrough_decision_table`` recast against
  the H.264 1920×1080 30 default envelope. Each row tests one
  gate (codec / per-axis dim / fps / audio / unknowns / probe
  gaps) without overlap.
* ``test_video_can_passthrough_respects_envelope`` end-to-end:
  pin ``DEVICE_TYPE``, build a summary at the given
  (codec, w, h, fps), assert the verdict. Replaces the legacy
  ``..._respects_board_codec_set``.
* ``test_transcode_to_target_emits_scale_when_source_oversize``,
  ``..._emits_fps_clamp_when_source_fast``,
  ``..._omits_clamps_when_source_at_envelope``: pin the smallest
  ffmpeg flag set per source / envelope combination.
* ``_envelope_summary`` helper at the top of the file
  short-circuits the per-test summary construction.
* Mock signatures for ``_transcode_to_target`` updated to accept
  the new ``envelope`` / ``source_summary`` kwargs.
* ``test_resolve_board_profile_picks_target_codec_per_board``
  deleted — equivalent coverage is in tests/test_playback_envelope.py
  against ``compute_envelope`` directly.

Stale doc / comment references to ``_BOARD_PROFILES`` /
``_resolve_board_profile`` updated to point at
``playback_envelope.ENVELOPE_BY_DEVICE_TYPE`` /
``compute_envelope``.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server): re-render walker + startup envelope reconciler

* New celery task `regenerate_for_envelope_change`: walks
  `Asset.objects.filter(mimetype='video')` and queues
  `normalize_video_asset` for any row whose
  `metadata['envelope']` no longer matches the current envelope.
  Malformed payloads, missing keys, and per-row exceptions are
  logged but don't stop the walker.
* New `AnthiasAppConfig.ready` hook -> `app/startup.py:
  run_envelope_check`: compares cached vs computed envelope,
  persists fresh, dispatches the walker on mismatch. Short-circuits
  under `ENVIRONMENT=test` / `PYTEST_CURRENT_TEST` so pytest runs
  don't enqueue stray walkers. Celery dispatch failure is logged
  but non-fatal -- the cache is already saved, so the next start
  sees the new envelope on disk and recovers.
* Tests cover: skip-in-envelope, queue-stale, legacy migration
  (no envelope key), image-asset skip, force-requeue, malformed
  payload recovery, continue-after-per-row-failure, every
  hook code path (test short-circuit, no-cache, match, mismatch,
  dispatch failure, corrupt cache).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server): preserve `.original.<ext>` siblings during orphan sweep

The Celery ``cleanup`` task built its "referenced" set only from
``Asset.uri``. With sibling-original storage, the source bytes live
at ``metadata['original_uri']`` (e.g. ``<id>.original.mov``) while
``Asset.uri`` points at the playback variant (``<id>.mp4``). Without
this fix every video upload's ``.original.<ext>`` falls outside the
1h mtime guard once the variant lands and gets silently deleted on
the next hourly sweep — breaking the re-render walker as soon as
the envelope changes.

* ``cleanup``: union ``Asset.uri`` ∪ ``metadata['original_uri']``
  into the referenced set, tolerant of legacy rows with non-dict
  metadata.
* Tests cover the new claim path + the malformed-metadata
  fallback so a stray ``metadata=None`` row can't crash the sweep.

The upload-path serializer itself stays untouched: the existing
``rename(tmp, <id><ext>)`` lands the upload at a single path, and
``processing._run_video_normalisation`` handles the
rename-to-``.original.<ext>`` atomically on first run. No double-
write, no extra disk traffic.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test(server): cover sibling-original storage across normalisation paths

Adds five tests pinning the ``.original.<ext>`` + variant contract
that the envelope walker depends on:

* fresh upload → ``<id>.original.<src_ext>`` created next to
  ``<id>.mp4``; ``metadata['original_uri']`` + ``metadata['envelope']``
  populated.
* re-render → ``.original.<ext>`` is byte-identical across passes
  (sha256 compared before/after); the walker reads from it and
  never rewrites it.
* passthrough → both files exist even when the source already
  matches the envelope (``shutil.copyfile`` semantics, not rename).
* legacy migration → pre-rollout assets with no ``original_uri``
  key get renamed to ``.original.<ext>`` on first walker pass.
* dangling ``original_uri`` → falls back to treating ``asset.uri``
  as the source-to-preserve; no silent error, no lost variant.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(board-enablement): replace codec policy table with playback envelope

* board-enablement.md now documents the envelope matrix as the
  single source of truth shared by the asset processor, the
  re-render walker, and the viewer's hwdec dispatch. The legacy
  ``_BOARD_PROFILES`` / ``passthrough_video_codecs`` vocabulary has
  been removed -- it never matched what ``processing.py`` does
  post-envelope.
* Calls out the ``<id>.original.<src_ext>`` + ``<id>.mp4`` sibling
  layout, the metadata keys the walker reads, and the cross-board
  fleet sha256 expectation.
* Pi 5 CMA quote rewritten: the real fix is
  ``dtoverlay=vc4-kms-v3d,cma-512`` in config.txt, not a downscale
  workaround. Kernel cmdline ``cma=`` is documented as the broken
  path it actually is.
* Failure-mode list updated for envelope-driven dispatch (off-
  envelope variant, display refresh ceiling, walker storm on
  unwritable cache, sha256 fleet divergence).
* ``media_player.py`` comment block: updates the Pi 5 H.264 →
  auto-copy and HEVC → drm-copy comments to reference the playback
  envelope by name and point at the correct CMA fix (config.txt
  dtoverlay, not cmdline.txt).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(tests): mypy on `_make_video_asset` + boolean is_enabled

* `dict` annotations get explicit `dict[str, Any]` parameters
  (Anthias's mypy config sets `disallow_any_generics`).
* `is_enabled=1` → `is_enabled=True` so the Asset field's bool
  type matches mypy's view of django-stubs models.
* Adds the missing ``typing.Any`` import.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server,tests): envelope-aware container gate + startup hook safety

Run 1 of CI surfaced several issues in the envelope refactor:

* **MP4 family container detection.** ffprobe reports an MP4 file's
  ``format_name`` as ``mov,mp4,m4a,3gp,3g2,mj2`` (``mov`` first
  because the QuickTime/MP4 demuxer is one codepath). The envelope
  gate compared the source container to ``envelope.container_ext``
  by exact equality, so every MP4 upload was rejected at the
  container gate even though the bytes are exactly what we'd
  write. Adds ``_MP4_FAMILY_CONTAINERS`` and special-cases ``mp4``
  envelope to accept any synonym.
* **Celery workers were running ``run_envelope_check``.**
  ``celery_tasks.py`` top-level-calls ``django.setup()``, which
  fires ``AppConfig.ready`` in every process that imports it,
  including the celery worker -- the previous comment in ``apps.py``
  was wrong. Two writers race on the cache file and could
  double-queue the walker for a single envelope change. New
  ``_is_celery_worker()`` short-circuit detects the
  ``celery -A ... worker`` invocation via ``sys.argv[0]``.
* **Settings singleton captures HOME at init.**
  ``AnthiasSettings.home`` is set once at module import time, so
  ``monkeypatch.setenv('HOME', tmpdir)`` in tests doesn't reach the
  envelope cache helpers. Updates ``cache_dir`` and ``fake_home``
  fixtures to also patch ``settings.home`` via ``monkeypatch.setattr``.
* **Stale tests.**
  - Drop ``test_cleanup_tolerates_non_dict_metadata`` -- the schema
    enforces ``metadata`` as a non-null JSON dict, so the failure
    mode it claimed to test can't occur. ``cleanup()`` keeps the
    defensive ``isinstance(metadata, dict)`` check as a no-cost
    belt-and-braces.
  - ``test_video_passthrough_for_h264_or_hevc_in_known_containers``
    rewritten as ``test_video_passthrough_when_source_matches_board_envelope``
    -- the old matrix included libx264 on pi4-64 (no longer
    passthrough because pi4-64 is HEVC) and non-mp4 containers
    (always re-encoded now because the variant slot is fixed at
    ``.mp4``).
  - ``test_video_passthrough_records_target_codec`` switches the
    source codec to libx265 so it actually hits the passthrough
    branch on pi4-64.
  - ``test_video_passthrough_uses_summary_duration_no_second_probe``
    rebuilt via ``_envelope_summary`` so the synthesised summary
    carries the new ``video_width / video_height / video_fps``
    fields.
  - The two ``test_ffprobe_summary_handles_*`` early-return shape
    assertions add ``video_width`` / ``video_height`` to match the
    real return shape.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server,tests): drop PYTEST_CURRENT_TEST gate; align stale summaries

Run 2 of CI surfaced three more issues:

* **``PYTEST_CURRENT_TEST`` is not fixture-controllable.** pytest
  re-sets the env var at the start of every test's ``call`` phase,
  so ``monkeypatch.delenv`` in a ``setup`` fixture is overridden
  before the body runs. This made it impossible for any test to
  exercise the real startup hook path. The ``ENVIRONMENT=test``
  gate (set in ``conftest.py`` + the test compose file) is the
  durable, fixture-controllable signal — keep that, drop the
  pytest one. Test for the new ``_is_celery_worker`` short-circuit
  replaces the deleted ``test_short_circuits_when_pytest_current_test``.
* **Decision table parametrise had a wrong expectation.** Summary
  row "HEVC at envelope (codec, dims, fps all match)" was paired
  with ``expected=True``, but the test envelope is H.264 — codec
  mismatch must transcode, ``False``.
* **``test_video_passthrough_skips_duration_when_probe_unavailable``
  summary missed the new dim/fps fields.** Same root cause as
  before: ``_video_can_passthrough`` rejected the synthesised
  summary at the dims gate, the test fell through to a real
  ffmpeg call on a 64-byte stub, and ffmpeg "Invalid data found".

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(envelope): add generic-arm64 key for Rock Pi / Armbian SBCs

The Anthias install path for Rock Pi 4 / Armbian boards writes
``DEVICE_TYPE=generic-arm64`` (see ``feat(install): generic-arm64
best-effort support``). The matrix only listed ``arm64``, so a
real install fell through to ``_DEFAULT`` — same envelope by
coincidence, but the walker would have logged "no matrix entry"
warnings on every server start and the docs/board-enablement
matrix would be subtly wrong about which key applies.

Lists the key explicitly with the same conservative H.264 1080p30
envelope and extends the parametrise coverage.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server): make celery_tasks.py top-level django.setup() reentrant-safe

``django.setup()`` calls ``apps.populate()``, which raises
``RuntimeError: populate() isn't reentrant`` if invoked while
already populating. The new ``AnthiasAppConfig.ready`` hook imports
``celery_tasks`` to dispatch the walker, which until this change
top-level-called ``django.setup()`` again -- so on every real
server start the import died, the dispatch failed, and the walker
never ran. Live-confirmed on the Pi 4 test bed.

Check ``django.apps.apps.apps_ready`` before calling ``setup()``:
the flag flips to True after the import phase but before per-app
``ready`` hooks run, so the standalone celery worker (where Django
isn't initialised yet) still calls setup() as before, while the
server process (mid-populate) correctly skips the reentrant call.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server): commit `original_uri` to DB before transcode (crash safety)

Live-confirmed on the Pi 4 test bed during the envelope rollout:
walker fired on a near-full SD card, ffmpeg ran out of space mid-
render, the on_failure hook cleared ``is_processing`` -- and the
hourly ``cleanup()`` sweep then silently deleted every
``.original.<ext>`` source it had just renamed, because
``Asset.uri`` still pointed at the (now-missing) variant path and
the orphan walker only knew about ``Asset.uri`` + a *committed*
``metadata['original_uri']``.

The metadata accumulator in ``_run_video_normalisation`` only wrote
to the DB at the end of the function, so any failure between
"rename source → .original.<ext>" and "render variant → atomic
replace" left the row's metadata stale.

Fix: persist ``metadata`` to the DB right after the rename, before
attempting any render. The contract becomes: if the file is on
disk under ``.original.<ext>``, the DB row knows it. ``cleanup()``
already reads ``metadata['original_uri']`` into the referenced set
(from ``fix(server): preserve `.original.<ext>` siblings during
orphan sweep``), so this commit closes the only window where that
guard could be bypassed.

Adds ``test_original_uri_persisted_before_render_for_crash_safety``
which mocks ``_transcode_to_target`` to raise and verifies the row
has ``metadata['original_uri']`` committed by the time the
exception propagates.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(board-enablement): script-driven 1-minute sample pack

Previously the test pack was full-length BBB clips (~10 min) plus an
inline ffmpeg recipe in the docs that produced 4K HEVC re-encodes
taking ~30 min on a workstation. The on-device walker then had to
chew through the full-length variants, which on a Pi 4 / Rock Pi
turned a single rotation cycle into hours of wallclock for what was
really a hwdec-banner sanity check.

* New ``bin/generate_board_enablement_testbed.sh``: downloads the
  four BBB H.264 sources, trims each to 60 s with ``-c copy``
  (instant), then libx265-encodes each cut. Idempotent (skips
  files that already pass an ffprobe sanity check) and atomic
  (tmp-then-rename) so a power cycle mid-encode leaves a clean
  state.
* Pack drops from ~3.3 GB / 10 min per clip to ~350 MB / 60 s per
  clip. 60 s is enough to capture mpv's ``hwdec-current`` banner
  and read a stable ``Dropped:`` count, while keeping a full
  walker pass under a few minutes on every supported board.
* ``CUT_SECONDS`` / ``HEVC_CRF`` env knobs override defaults for
  iteration; the table in the doc lists what each clip exercises.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(envelope,viewer): runtime Rock Pi 4 detection unlocks v4l2m2m HW decode

``bin/install.sh`` writes ``DEVICE_TYPE=arm64`` for every aarch64
SBC it doesn't recognise as a Pi — Rock Pi 4, Orange Pi, Allwinner
H6 boards, Amlogic S905 boards all share that one catch-all
DEVICE_TYPE. The matrix can't promote ``arm64`` to HEVC + HW
because most of those boards have no upstream-mpv HW decode path
and would log "Could not find a valid device" on every play.

But the Rock Pi 4 (RK3399 / Radxa) DOES have a working v4l2m2m
driver exposed by the kernel:

  $ docker exec anthias-anthias-viewer-1 mpv --hwdec=help | grep v4l2m2m
    v4l2m2m-copy (h264_v4l2m2m-v4l2m2m-copy)
    v4l2m2m-copy (hevc_v4l2m2m-v4l2m2m-copy)
    v4l2m2m-copy (vp9_v4l2m2m-v4l2m2m-copy)
    ...

and ``/dev/video-dec2`` / ``/dev/video-dec4`` are present (the
v4l2_request decoder symlinks). Leaving Rock Pi on SW decode for
1080p HEVC measurably wastes the silicon.

Resolved at runtime via ``/proc/device-tree/model``:

* New matrix key ``rockpi4`` → HEVC 1920×1080 30. 1080p ceiling
  keeps disk use of the variant + ``.original.<ext>`` sibling
  comfortable on the typical SD card; HEVC codec exercises the
  Hantro path on the way through the viewer.
* ``compute_envelope`` and ``_pi_hwdec_for_uri`` both probe the
  device tree when DEVICE_TYPE is ``arm64`` (or legacy
  ``generic-arm64``). A Rock Pi 4B reports
  ``Radxa ROCK Pi 4B`` and gets upgraded; an Orange Pi or an
  Allwinner H6 board stays on the conservative SW envelope.
* Failure modes (no device tree, decode error, unknown SBC) all
  collapse to ``None`` so dev containers and the existing arm64
  catch-all keep working unchanged.

Four new tests pin:
- Rock Pi model → ``rockpi4`` envelope;
- legacy ``generic-arm64`` label also gets the upgrade;
- unknown SBC keeps the conservative envelope;
- missing ``/proc/device-tree/model`` doesn't raise.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(envelope,viewer): publish board subtype via host_agent + Redis

Previous commit (``dde1b20e``) added a runtime ``/proc/device-tree``
read inside the server + viewer containers. Containers don't see
that path by default, and mounting it into every container is
heavier than it's worth for one edge case (worse, balena's
restricted /proc would still trip).

``anthias_host_agent`` already runs on the host and publishes
host-side state to Redis (IP addresses, etc.). It's the right
layer for board identification:

* New ``detect_board_subtype()`` reads
  ``/proc/device-tree/model`` directly (host_agent IS on the
  host) and maps known SBC strings to matrix keys
  (Rock Pi 4A/4B/4C → ``rockpi4``).
* New ``set_board_subtype()`` publishes the resolved key (or the
  empty string for unknown boards) to ``host:board_subtype``
  before ``subscriber_loop`` flips ``host_agent_ready`` — so
  consumers can rely on the key being there once the readiness
  flag is set.
* Server's ``playback_envelope.compute_envelope`` and viewer's
  ``_pi_hwdec_for_uri`` read the same Redis key when DEVICE_TYPE
  is ``arm64`` / legacy ``generic-arm64``. Failure modes (Redis
  down, key missing, decode error) all collapse to ``None`` so
  the caller falls back to the conservative arm64 envelope.

No compose template changes. The viewer + server containers
already have Redis reachable (they use it for the Channels
layer + walker dispatch already), so the data path is free.

Unit tests pin:
* device-tree → subtype mapping for canonical + variant + edge
  Rock Pi strings, plus unknown boards;
* Redis publish writes the resolved key OR empty string;
* server's compute_envelope reads back through Redis correctly
  for known / unknown / empty / unreachable cases;
* subscriber_loop calls set_board_subtype before flipping
  ``host_agent_ready`` — race-free ordering.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(celery): cap walker to --concurrency=1 so transcodes can't choke playback

Default celery worker concurrency = num_cores. On the boards
Anthias actually ships to (Pi 4 / Pi 5 / Rock Pi 4 / arm64
SBCs), that means up to 4 parallel ``libx265`` encodes sharing
the same SoC as the viewer's mpv process. ``nice -n 19`` +
``ionice -c 3`` are already in place, but nice(1) only helps
when there's CONTENTION -- four ffmpegs at nice 19 still
saturate every core, and each 1080p libx265 encode needs ~500 MB
RAM. A 4 GB SBC pushes into swap well before the walker
finishes, which stalls *everything* on the host -- live-
confirmed on the Rock Pi 4 during this PR: sshd starved through
banner exchange whenever the walker hit a fresh burst.

Asset processing is upload-time, not throughput-bound. The
operator-facing latency that matters is "upload click → asset
visible in rotation", which is bound by ONE encode regardless of
queue parallelism. Serial encodes finish a few minutes later in
wallclock but the viewer never drops a frame.

Applied to every prod / dev compose template. ``docker-compose.test.yml``
is left at default because the test suite never runs live
normalize tasks (the celery service in tests just exercises the
task dispatch plumbing).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): force MPV on legacy ``generic-arm64`` DEVICE_TYPE

Rock Pi 4 running an older arm64 image reports
``DEVICE_TYPE=generic-arm64`` (pre-``refactor: rename device_type
generic-arm64 → arm64`` rebuilds). The MediaPlayerProxy
override only force-routed MPV for ``arm64`` / ``pi4-64``, so the
legacy label fell through to VLC -- which then crashed with
``NameError: no function 'libvlc_new'`` because the libvlc lib
isn't installed on the arm64 image. Live-confirmed in the viewer
crash loop on the Rock Pi 4 during this PR.

Adds ``'generic-arm64'`` to the force_mpv set + a test pinning
the dispatch. Covers the in-the-wild rolling-upgrade window
where a Rock Pi 4 deployment is sitting on an old image.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(viewer): route ``generic-arm64`` through cage + ALSA-default like ``arm64``

Two more places in ``media_player.py`` only checked the post-rename
``arm64`` DEVICE_TYPE and missed the legacy ``generic-arm64`` label
the Rock Pi 4 test bed still reports:

* **VO dispatch** (line ~419) — without this, a generic-arm64 host
  falls through to the ``--vo=drm`` else branch, which mpv aborts
  with "No primary DRM device could be picked" because cage already
  holds DRM master in the cage + Wayland viewer stack
  (live-confirmed on the Rock Pi 4 in this PR).
* **ALSA card selection** (``get_alsa_audio_device``) — the Pi-name
  dispatch below the env-var check picks ``vc4hdmi`` / "Headphones"
  cards that don't exist on Rockchip / Allwinner / Amlogic. Without
  the legacy label here, mpv tries to open the Pi-specific HDMI
  card and dies with ``Unknown PCM sysdefault:CARD=vc4hdmi``.

Both branches now use the shared ``_ARM64_DEVICE_TYPES`` frozenset
that already governs the hwdec subtype probe, so the three paths
(envelope, hwdec dispatch, VO + ALSA) agree on what DEVICE_TYPE
labels are aarch64-catch-all.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(envelope): Rock Pi 4 stays on H.264 1080p30 -- stock ffmpeg has no v4l2_request

Live testing on the Rock Pi 4 surfaced that the arm64 viewer
image's stock ffmpeg (Debian 7.1.3-0+deb13u1) is built without
``--enable-v4l2-request``, and the underlying kernel exposes the
RK3399's decoders only via the stateless v4l2_request API
(``rkvdec`` for HEVC, the Hantro block as ``rockchip,rk3399-vpu-dec``
for H.264). ffmpeg's stateful ``hevc_v4l2m2m`` / ``h264_v4l2m2m``
decoders can't reach them -- mpv logs ``Could not find a valid
device`` even after ``/dev/video-dec*`` symlinks are present.
mpv ``--hwdec=help`` also doesn't list rkmpp or drm-copy, so
there's no other path through the stock build.

So:

* ``rockpi4`` envelope drops from HEVC 1920x1080 30 to H.264
  1920x1080 30 -- the same conservative tier as the generic
  ``arm64`` catch-all. The viewer SW-decodes 1080p30 in real
  time on the Cortex-A72; no frames dropped, just no HW gain
  over plain ``arm64``.
* Rock Pi entry drops from ``_PI_HWDEC_BY_CODEC`` -- mpv falls
  through to ``auto-copy`` which mpv's whitelist resolves to
  SW decode on this build.
* host_agent's subtype publish, the start_viewer.sh
  ``/dev/video-dec*`` symlink creation, and the dedicated
  ``rockpi4`` matrix key all stay in place -- they're
  forward-compatible scaffolding so a follow-up enabling
  v4l2_request (or linking rkmpp) in the viewer build only has
  to bump the matrix entry's codec to ``hevc`` and add the
  hwdec dispatch row. No further plumbing churn.
* Tests + docs reflect the routing-without-HW reality.

The legacy-label fixes from this PR (force_mpv +
``--vo=gpu --gpu-context=wayland`` + ALSA default for the
``generic-arm64`` DEVICE_TYPE) are unaffected -- those are real
bug fixes the Rock Pi 4 needs to play *anything* under cage.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(viewer,envelope): extend +rpt1 ffmpeg to arm64; Rock Pi 4 = HEVC 4Kp60

The Raspberry Pi APT repo's ffmpeg build (``+rpt1``) ships with
``--enable-v4l2-request --enable-libudev --enable-vout-drm``,
which the stock Debian Trixie ffmpeg drops. Without those flags
the v4l2_request hardware decoder family is unreachable from
mpv — which is exactly what bit the Rock Pi 4 in this PR:
RK3399's ``rkvdec`` (HEVC) and Hantro VPU (H.264) are both
stateless v4l2_request decoders. Pi 4 / Pi 5 already pull from
the +rpt1 repo for the same reason; extending the conditional in
``Dockerfile.viewer.j2`` to also include ``arm64`` lights up
hardware decode on every arm64 SBC whose kernel exposes
v4l2_request decoders (Rock Pi, Orange Pi RK356x, Pine64,
Allwinner H6 with Cedrus, ...).

* ``Dockerfile.viewer.j2`` — board conditional ``('pi4-64',
  'pi5')`` → ``('pi4-64', 'pi5', 'arm64')``. The apt pin already
  restricts the +rpt1 repo to ``ffmpeg + libav* + mpv``, so other
  arm64 packages stay on stock Debian. Comment block updated to
  list which decoders each board reaches via this path.
* ``playback_envelope.py`` — ``rockpi4`` envelope flips from
  H.264 1080p30 to HEVC 3840×2160 60. RK3399's Hantro G2 is the
  same decoder family as Pi 5's and supports 4Kp60 per the
  Rockchip datasheet — matching Pi 5's envelope keeps the fleet
  uniform.
* ``media_player.py`` — ``_PI_HWDEC_BY_CODEC['rockpi4']`` maps
  both h264 and hevc to ``drm-copy`` (the v4l2_request hwdec
  path, same as Pi 5 for HEVC).
* Tests + docs updated accordingly.

The legacy-arm64 fixes (force_mpv + cage VO + ALSA default for
``generic-arm64``) and the host_agent subtype publish are
unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(celery): cgroup CPU hard cap (`cpus: 1.0`) so encodes never starve the viewer

``nice -n 19 ionice -c 3`` + ``--concurrency=1`` lower priority and
limit parallelism, but they're soft hints — when libx265 is the
only heavy workload on the box the scheduler still hands it
everything available. Live-confirmed on the Rock Pi 4 in this PR:
sshd starved through banner exchange and mpv dropped mid-frame
during walker bursts, even with all three soft caps in place.

``cpus: 1.0`` is a cgroup CFS quota — one CPU's worth of compute
per period, kernel-enforced. On every supported SBC (Pi 4 / Pi 5 /
Rock Pi 4, all 4-core) it leaves 3+ cores for the viewer, the
host_agent, sshd, and everything else. x86 hosts have 8+ cores so
the cap is conservative there but harmless — asset processing is
upload-time, not throughput-bound.

Applied to every prod / dev compose template. test compose stays
uncapped because the test suite runs in CI environments with
deterministic resources where the cap would just slow CI down
without protecting anything.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(celery): scale CFS quota with host cores (half of \$(nproc), min 1.0)

A flat ``cpus: 1.0`` is too aggressive: it forces a single-thread
ceiling even when the host has many idle cores. On an 8-core x86
deployment the asset processor would take 4x longer than it needs
to without protecting anything we don't already protect.

Compute the limit dynamically in ``bin/upgrade_containers.sh``:
``$(nproc) * 0.5`` (floored to 1.0 so single-core hosts still
make progress). On the supported boards this lands at:

  * 4-core Pi 4 / Pi 5 / Rock Pi 4 → cpus: 2.0 (2 cores headroom
    for the viewer + system)
  * 8-core x86 → cpus: 4.0 (4 cores headroom)
  * 16-core x86 → cpus: 8.0 (still 50/50 with the system)

Soft priorities (``nice -n 19 ionice -c 3``) and the
``--concurrency=1`` walker still apply on top; the cgroup quota
is the hard backstop that guarantees "encoding never impacts
playback or UI access". Live test on the Rock Pi 4 (in this PR)
proved the soft caps alone aren't enough — libx265 saturated
every core and starved sshd through banner exchange.

The balena compose templates use a literal ``cpus: 2.0`` (balena
only targets 4-core Pi 2/3/4/5 today); the non-balena prod
compose substitutes the env var. Dev compose also uses a literal
``2.0`` since dev hosts vary too widely to autodetect cheaply.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(walker): hardware-decode the source in the transcode pipeline

The walker's encode pass stays libx265-software-bound on every
SBC (none of Pi 4 / Pi 5 / Rock Pi 4 have HEVC HW encode), but
the *decode* half of the pipeline can be offloaded to the same
silicon mpv uses for playback. That's typically 30-50% of the
ffmpeg wall-clock on H.264 sources and dominant on 4K — well
worth the small dispatch table.

* ``_decode_hwaccel_args(source_codec)`` returns the per-board
  ``-hwaccel`` flags to prepend to the ffmpeg invocation. Uses
  the same host_agent subtype probe (``host:board_subtype`` in
  Redis) that envelope resolution already uses, so the walker
  and viewer agree on what board they're targeting.
* Dispatch matrix:
  - Pi 4 (V3D V4L2 M2M + rpi-hevc-dec) → ``-hwaccel drm`` for
    both H.264 and HEVC (the +rpt1 ffmpeg's v4l2_request path).
  - Pi 5 (Hantro G2) → ``-hwaccel drm`` for HEVC only.
  - Rock Pi 4 (rkvdec + Hantro VPU) → ``-hwaccel drm`` for both,
    same v4l2_request path as Pi 5.
  - x86 (VAAPI) → ``-hwaccel vaapi -hwaccel_device
    /dev/dri/renderD128`` for both.
  - Pi 2 / Pi 3 / unknown arm64 → no HW path mpv can address;
    SW decode is the only choice.
* ``_transcode_to_target`` wraps the ffmpeg call: first attempt
  with hwaccel args, fall back to SW decode on
  ``sh.ErrorReturnCode`` (kernel driver weird, device busy,
  bitstream the v4l2_request decoder rejects). Logs the
  underlying ffmpeg stderr at WARNING so an operator chasing a
  slow walker sees the HW path failed.

Tests pin every cell of the dispatch matrix + assert ``-hwaccel``
lands BEFORE ``-i`` in the argv (placing it after silently
no-ops in ffmpeg) + the two-call SW-fallback path on simulated
HW init failure.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server-image): extend +rpt1 ffmpeg pin to anthias-server too

The walker's HW-decode optimization (``processing._decode_hwaccel_args``
emits ``-hwaccel drm``) only works against the Raspberry Pi repo's
``+rpt1`` ffmpeg build, which has ``--enable-v4l2-request``. The
pin was previously only on the *viewer* image (Dockerfile.viewer.j2
in ``ba8d4709``), so the celery container — which runs the walker —
kept the stock Debian ffmpeg and the hwaccel call silently fell
back to SW on every board.

* New ``docker/_rpt1-ffmpeg-pin.j2`` extracts the pin block.
* Both ``Dockerfile.viewer.j2`` and ``Dockerfile.server.j2`` now
  include it via ``{% include '_rpt1-ffmpeg-pin.j2' %}``. Server
  also re-runs ``apt install --reinstall ffmpeg libav*`` so the
  pinned version replaces whatever the base layer installed.
* No effect on Pi 2 / Pi 3 / x86 boards — the include's
  ``{% if board in ('pi4-64', 'pi5', 'arm64') %}`` keeps it
  inert there.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* perf(celery,viewer): four hardening fixes so the player survives an upgrade

Live testing on Pi 4 / Pi 5 / Rock Pi 4 surfaced four scenarios
where a single ``docker compose pull && up -d`` (or any upgrade
that invalidates the playback envelope) wedges the device. These
aren't test-harness flakes; production operators on the same
hardware would hit them. All four belong in this PR alongside the
features that exposed them.

1. **Walker drip-feed** — ``regenerate_for_envelope_change``
   previously queued every stale ``normalize_video_asset`` in one
   beat tick. ``--concurrency=1`` serialises *execution* but the
   celery worker fetches the next task the instant the previous
   finishes, so a 100-asset catalog turns into hours of back-to-
   back libx265 with zero recovery windows between encodes.
   Switch to ``apply_async(args=..., countdown=N * 60)`` so
   each subsequent normalize starts at least 60 s after the
   previous was queued. Operator can flip ``is_processing=False``
   on a row mid-window to cancel its turn.
2. **``mem_limit`` on celery container** — cgroup CPU isolation
   alone doesn't stop libx265-4K from allocating ~1.5 GB resident
   memory, which on a 4 GB SBC pushes the system into swap and
   starves sshd + the viewer. Match the cpus cap with a memory
   cap (60% of host RAM, computed in ``bin/upgrade_containers.sh``).
3. **``stop_grace_period: 3s`` + ``stop_signal: SIGKILL`` on
   viewer** — cage doesn't reliably release DRM master on
   SIGTERM (its libinput shutdown path hangs on certain kernels)
   and the kernel's GPU driver leaves dangling references that
   prevent the next ``up`` from acquiring DRM master. Skipping the
   SIGTERM-then-wait dance on intentional restarts gets the
   device past cage's bug deterministically.
4. **libx265 / libx264 ``-preset superfast``** — was ``medium``.
   Asset processing is upload-time and only runs once per asset,
   so the 5-10× wallclock speedup is operator-facing throughput.
   The ~10-20% bitrate increase is invisible on typical signage
   content. Viewer decode is HW regardless of preset.

Tests:
* Walker test mocks switched from ``.delay`` to ``.apply_async``;
  signatures updated for ``args=(...,)`` + ``countdown=`` kwarg.
* New ``test_regenerate_walker_spaces_dispatches_via_countdown``
  asserts the countdowns are ``[0, 60, 120, ...]`` across a
  5-asset catalog so the drip-feed contract is pinned.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(tests): use sh.ErrorReturnCode_1 in hwaccel fallback test

sh.ErrorReturnCode is the abstract base; its __init__ does
`self.exit_code = self.exit_code` which AttributeErrors unless the
concrete numeric subclass (ErrorReturnCode_1, _2, ...) is used. Every
other call site in this file already uses ErrorReturnCode_1 — this was
the lone outlier introduced with the SW-fallback test in 0340b4f4.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(asset-processor): drop on-device video transcoding

On-device libx265 transcode wedged a Pi 4's celery worker for 99 min on a
single 4K60 H.264→HEVC pass during PR validation. Every supported board
already HW-decodes both H.264 and HEVC via the viewer's per-board mpv
hwdec dispatch (drm-copy / vaapi-copy / v4l2m2m-copy), so the re-encode
provided no playback benefit for the codecs operators actually upload.

- ``normalize_video_asset`` now runs ffprobe and writes codec / dims /
  fps / duration into ``metadata``; the asset file is never rewritten.
- Removes the envelope module, the re-render walker
  (``regenerate_for_envelope_change``), and the server-start envelope
  cache reconciliation hook.
- Drops 33 transcode / envelope / sibling-original tests.

Image normalisation (HEIC/HEIF/TIFF/BMP/ICO/TGA/JP2/AVIF → WebP) is
unchanged. The viewer-side per-board hwdec dispatch and host_agent
board-subtype publishing are unchanged.

For codecs the target board can't HW-decode (MPEG-2, MPEG-4 ASP, ...)
the operator's recovery is to upload a transcoded copy; the metadata
fields surfaced here let them see codec / dims / fps in the asset list
before pushing the asset to the field.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(asset-processor): gate uploads to hardware-decoded codecs only

After ffprobe, ``normalize_video_asset`` now compares the source codec
against the board's HW-decode set (mirroring the viewer's
``_PI_HWDEC_BY_CODEC``). Uploads outside the set are rejected with an
error message that includes the rejected codec, the board's supported
codecs, and an ``ffmpeg`` command line the operator can run on their
workstation to transcode the source.

Per-board HW decode set:

- pi2 / pi3 → {h264}
- pi4-64 / rockpi4 / x86 → {h264, hevc}
- pi5 → {hevc} (no H.264 v4l2-request decoder mpv can reach)
- arm64 catch-all → ∅ (operator must install a board-specific image)

Also extracts ``DEVICE_TYPE`` → board-key resolution into a new
``anthias_common.board`` module so the server's gate and the viewer's
hwdec dispatch share the same logic — eliminates the duplicated
``_redis_board_subtype`` mirror in ``media_player.py``.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(dashboard): surface unsupported-codec failures with copyable recipe

UI/UX review of the gate's failure path surfaced two P0s and a few
smaller nits:

- The error message was only reachable via a native browser ``title``
  tooltip on the Failed pill — invisible on touchscreens, can't be
  copied, leaks the ``UnsupportedVideoCodecError:`` class prefix into
  the aria-label.
- The Edit Asset modal showed nothing about the failure — exactly
  the place the operator goes to act on a failed row.

Changes:

- ``UnsupportedVideoCodecError`` now carries the ffmpeg recipe as a
  ``recipe`` attribute. ``_NormalizeAssetTask.on_failure`` writes the
  bare message into ``metadata.error_message`` (no class-name prefix)
  and persists the recipe to ``metadata.error_recipe``.
- ``_asset_row.html`` Failed pill becomes a button — click opens the
  Edit Asset modal.
- ``_asset_modal.html`` renders a warning banner at the top of the
  Edit form when ``metadata.error_message`` is set, with the recipe
  inside a copyable ``<code>`` block + "Copy command" button.
- ``_ffmpeg_reencode_recipe`` substitutes the operator's upload
  filename (stashed in ``metadata.upload_name`` at upload time) for
  the ``INPUT`` placeholder so the recipe is paste-ready.
- Toast text shortened from "analysing video…" to "reading metadata…"
  (the ffprobe pass is sub-second now that there's no transcode).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(processing): give recipe output a codec suffix so it doesn't overwrite input

E2E validation on a Pi 5 surfaced a recipe like:

  ffmpeg -i 'sample-h264.mp4' -c:v libx265 ... 'sample-h264.mp4'

— input and output point at the same file because both got the
upload's stem + ``.mp4`` suffix. Operator pasting the recipe would
overwrite their source. The fix gives the output filename a target-
codec marker (``sample-h264.hevc.mp4`` / ``sample-h264.h264.mp4``)
so the recipe is safe to copy-paste even when the upload's
extension already matches the output container.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: drop transcode-era defensive hardening on celery + server image

These guards were load-bearing while the asset processor ran libx264 /
libx265 transcodes; with the on-device transcode pipeline gone they're
dead code defending against a workload that no longer exists.

Removed:
- ``cpus: ${CELERY_CPU_LIMIT}`` / ``cpus: 2.0`` cgroup CPU caps on
  anthias-celery (every compose template)
- ``nice -n 19 ionice -c 3`` wrapper on the celery command
- ``--concurrency=1`` on celery worker; default celery concurrency
  is fine when the only tasks are ffprobe + Pillow conversion
- ``CELERY_CPU_LIMIT`` calc in ``bin/upgrade_containers.sh``
- ``_rpt1-ffmpeg-pin.j2`` include + reinstall layer in
  ``Dockerfile.server.j2``; the +rpt1 ffmpeg was only needed for
  the walker's ``-hwaccel drm`` transcode. The server now only
  runs ffprobe, which the stock Debian ffmpeg handles fine
  (smaller server image, simpler base)
- Stale ``ffprobe → passthrough or libx264/aac transcode`` section
  header in processing.py

Kept:
- ``mem_limit: ${CELERY_MEMORY_LIMIT_KB}k`` on celery — still a
  useful safety net against a decompression-bomb fixture or
  runaway ffprobe
- ``+rpt1`` ffmpeg pin on the *viewer* image — still load-bearing
  for mpv's ``v4l2_request`` HW decode on Pi 4 / Pi 5 / Rock Pi 4

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: keep nice -n 19 ionice -c 3 on celery

Cheap insurance against pathological inputs (decompression-bomb
HEIC, runaway ffprobe). Brought back across all four compose
templates after stripping the CPU cap + --concurrency=1 in the
prior cleanup.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(dashboard): address review feedback on codec gate UX

* Plain-HTTP clipboard fallback. navigator.clipboard.writeText only
  resolves on secure origins, so on a LAN device (HTTP) the Copy
  command button silently failed. Add a window.fallbackCopyToClipboard
  helper that uses execCommand('copy') against an off-screen
  textarea, and have the inline copyRecipe() try it whenever
  navigator.clipboard isn't available or rejects. The recipe block
  also gets user-select:all so keyboard-copy still works if both
  paths fail.
* Friendlier message for the arm64 catch-all branch. "Supported:
  none." read like the board literally has no decoder; replace with
  an explanation that the board hasn't reported a subtype yet and a
  pointer at the board-specific image.
* Lock the gate (_HW_DECODE_VIDEO_CODECS) and the viewer dispatch
  (_PI_HWDEC_BY_CODEC) together with a consistency test so a future
  edit to one table can't quietly diverge from the other.
* Cover the shell-quoting of recipe filenames with hostile-name
  parametrize cases (single quote, backtick, $(), ;) so a copy-paste
  recipe can't be turned into command injection.
* Drop the stale "cgroup CPU cap" line from processing.py's module
  docstring — the cap was removed in f85f8035.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix: address post-review feedback on codec gate / hwdec dispatch

- processing: prefer the upload's extension token when ffprobe's
  format_name is a synonym list, so an .mp4 surfaces as
  container=mp4 (not mov, the first synonym).
- bin/start_viewer.sh: drop the loose `*-dec` catch-all from the
  v4l2 decoder match; keep the explicit rkvdec/cedrus/hantro/
  *-vpu-dec prefixes.
- media_player: cap the ANTHIAS_DEBUG_DROPS mpv.log at 64 MB with
  a rolling truncate so a forgotten-on flag can't grow the disk.
- tests: rename test_set_board_subtype_does_not_raise_on_redis_failure
  to test_set_board_subtype_propagates_redis_failures — matches what
  the test actually asserts.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 11:46:02 +02:00
Viktor Petersson
d2ebdd5450 fix(api): v1/v1.1 normalize dispatch + stuck-row reconciler (#2870) (#2873)
* fix(api): dispatch normalize for v1/v1.1 video uploads + reconcile stuck rows (#2870)

* Wire normalize-task dispatch into v1 and v1.1 ``AssetListView.post``
  via a shared ``dispatch_pending_normalize`` helper; before this,
  v1/v1.1 video uploads landed in whatever codec the operator sent
  and the per-board passthrough set silently dropped non-h264/hevc
  files from rotation forever.
* Set ``_pending_normalize='video'`` / ``is_processing=1`` on local
  video uploads in ``CreateAssetSerializerV1_1``. Image normalisation
  stays opt-in via v1.2 / v2 — promoting it onto the legacy endpoints
  would shift synchronous availability semantics for older clients.
* Add ``reconcile_stuck_processing`` celery-beat task (10-min cadence,
  60-min threshold) to recover rows whose normalize task was lost
  (worker SIGKILL, OOM, backup restore that bypassed dispatch). Ages
  rows via ``metadata.processing_started_at`` — stamped by each
  dispatch helper, granted on first sight for legacy / restored rows.
* Drop ``hurry.filesize`` for ``django.template.defaultfilters.filesizeformat``.
  ``free_space`` on ``/api/v1/info``, ``/api/v1.1/info``, ``/api/v2/info``
  changes from ``"15G"`` → ``"15.0 GB"`` (NBSP separator, decimal,
  full unit). Same change on home-page disk fields.
* Bump version to 2026.05.1 in pyproject.toml, package.json, uv.lock.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test: patch v1.1 validate_uri + pass ext on local-upload fixtures

CI failures on the new dispatch tests:

* v1 / v1.1 video and image tests hit ``validate_uri('/data/…')`` →
  500 ``Invalid file path``. The mixin patch only covered
  ``serializers.mixins.validate_uri``; v1 / v1.1 import the same
  helper as ``serializers.v1_1.validate_uri``. Patch both binding
  sites.
* v1.2 / v2 image test expected ``dispatch_normalize_image`` once but
  got zero. The mixin's rename writes ``<asset_id><ext>``; without
  ``ext`` in the payload the file lands extensionless and
  ``needs_image_normalisation`` returns False. Pass ``'ext': '.heic'``.
* Also pass ``'ext': '.mp4'`` on the video payload — mixin uses it for
  the rename destination too; v1 / v1.1 ignore it.
* Re-run ``ruff format`` on tests/test_processing.py — pre-push run
  used ``ruff check`` only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(reconciler): handle naive timestamps, single-flight via Redis lock

Addresses Copilot review on #2873:

* ``_parse_processing_started_at`` now returns ``None`` for naive
  (no-tzinfo) ISO-8601 strings. The dispatch helpers stamp via
  ``timezone.now()`` (tz-aware under ``USE_TZ=True``), so a naive
  value is by definition a hand-edit of metadata — comparing it to
  the tz-aware ``cutoff`` would raise ``TypeError`` and abort the
  sweep for every other stuck row. Route it through the
  stamp-on-first-sight branch instead.
* Wrap the reconciler body in a SETNX + Lua-compare-and-delete lock
  on ``RECONCILE_STUCK_LOCK_KEY`` — same pattern as
  ``revalidate_asset_urls``. Default Anthias runs one worker with
  embedded beat (so single-flighted today), but the lock bounds
  blast radius if a future deploy ever runs two workers with ``-B``.
* Rewrite the ``dispatch_download`` docstring: stamping
  ``processing_started_at`` does *not* let the reconciler re-download
  — it routes via mimetype='video' through ``normalize_video_asset``,
  whose ``path.isfile`` guard fails fast and ``on_failure`` writes
  ``metadata.error_message`` so the operator sees a "Failed" pill
  instead of a row stuck on "Processing".

Tests: naive-timestamp recovery + lock-prevents-overlap +
lock-released-after-clean-run.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(processing): make stamp helper public, tighten reconciler types

Addresses second Copilot pass on #2873:

* Rename ``_stamp_processing_start`` → ``stamp_processing_start``.
  The single underscore marked it as module-private but it's already
  called cross-package (anthias_common.youtube.dispatch_download,
  anthias_server.celery_tasks.reconcile_stuck_processing). Promoting
  to a public symbol matches its actual API surface; docstring now
  states the cross-module contract explicitly.
* Wrap the read-modify-write in ``transaction.atomic()``. SQLite is
  single-writer at the file level so the wrap is mostly documenting
  intent today, but on Postgres / MySQL it produces an actual
  transaction boundary against a near-simultaneous operator PATCH or
  worker landing ``error_message``.
* Fix the docstring claim of "no-op via the filter().update()
  pattern" — the code is a SELECT-then-UPDATE; the no-op semantics
  come from the ``filter().first() is None`` guard, not from the
  update query shape.
* Tighten ``_parse_processing_started_at`` return type from ``Any``
  to ``datetime | None``. Pull ``datetime`` into the module-level
  ``from datetime import …`` so the annotation resolves; drop the
  redundant local imports inside the parser and reconciler bodies.
* Fix the reconciler docstring's "10-min grace window" — the actual
  grace is ``RECONCILE_STUCK_THRESHOLD_S`` (60 min) from the
  first-sweep stamp, with the 10-min cadence just dictating how
  often the row is re-checked.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: honest race acknowledgement on stamp helper + fix OpenAPI example

Round-3 Copilot review on #2873:

* ``stamp_processing_start`` docstring: replace the implied
  "transaction.atomic() makes this safe" framing with a clear
  acknowledgement that this is a read-modify-write race against
  arbitrary other metadata writers (operator PATCH, normalize task
  landing error_message). Document why we accept it: stamps fire at
  *dispatch* time, before the worker picks the task up, so the
  practical window is microscopic — matches the same race the wider
  codebase already accepts in ``_set_processing_error`` et al.
  ``select_for_update()`` would close it on Postgres / MySQL but is
  a no-op on SQLite (Anthias's only deployed backend), so we'd pay
  complexity for zero practical safety today. The
  ``transaction.atomic()`` wrap stays — cheap savepoint that survives
  a future multi-writer-backend switch.
* ``InfoViewMixin`` OpenAPI ``example`` field: update ``free_space``
  from ``'10G'`` to ``'10.0 GB'`` so the generated docs match the
  new ``filesizeformat`` shape (NBSP separator, decimal, full unit).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: tighten reconciler constants' cost + threshold rationale

Round-4 Copilot review on #2873:

* ``RECONCILE_STUCK_INTERVAL_S`` comment: the previous "one SELECT,
  one UPDATE per stuck row" undercounted — each per-row branch
  itself does SELECT + UPDATE inside ``stamp_processing_start``, and
  the re-dispatch branch may do more on top. Rewrite to reflect the
  actual cost shape: the initial SELECT plus per-row stamp / dispatch
  work, with the observation that a healthy fleet has an empty
  filtered set so the tick costs one SELECT total.
* ``RECONCILE_STUCK_THRESHOLD_S`` comment: removed the claim that a
  row past the threshold "has had its worker time-limit expire" —
  rows can be stuck for reasons that never involved a worker
  picking the task up (Redis flake during ``.delay()``, container
  restart between enqueue and accept). Rewrite to call out both
  classes of failure so the threshold's role is honest: "if a row
  has carried is_processing=True for over an hour, something went
  wrong — recover it."

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 15:46:55 +01:00
Viktor Petersson
2d0132b6a4 feat(processing): normalise HEIC/HEIF/TIFF images and exotic-codec videos at upload time (#2832)
* feat(processing): add upload-time normalisation for images and exotic-codec videos

Two new Celery tasks run on every fresh upload, mirroring the
``download_youtube_asset`` async pattern:

* ``normalize_image_asset`` converts HEIC / HEIF / TIFF to lossless
  WebP via Pillow + pillow-heif, preserving alpha. Other image
  formats short-circuit out as a no-op.
* ``normalize_video_asset`` ffprobes the upload, passes through if
  it's already H.264/HEVC in an accepted container with a viewer-
  friendly audio codec, otherwise transcodes to H.264 + AAC MP4 with
  ``-threads 2 -preset medium -crf 23`` so two cores stay free for
  the on-device viewer.

Both tasks land their output via a staging-file rename, write
``Asset.metadata`` flags (``original_ext``, ``transcoded`` /
``converted``, ``error_message``), and clear ``is_processing`` on
success — or via a custom ``Task.on_failure`` on permanent failure
so a row never stays stuck on the "Processing" pill.

Schema:
* New ``Asset.metadata`` JSONField (default dict) plus migration.
  Exposed read+write on ``AssetSerializerV2`` (read-only on v1.x).

Wiring:
* ``CreateAssetSerializerMixin.prepare_asset`` flags ``is_processing``
  and stashes ``_pending_normalize`` (``image``/``video``/``None``);
  ``AssetListViewV2`` and ``AssetListViewV1_2`` dispatch the matching
  task after persistence.
* The HTMX ``assets_upload`` view now persists the source extension
  on disk so the task can identify the format, replaces the
  ``probe_video_duration`` hop with ``normalize_video_asset``
  (whose passthrough branch is the same probe + duration path),
  and dispatches ``normalize_image_asset`` for HEIC/HEIF/TIFF.
* Add-asset modal accepts the wider extension list.

Resource control:
* ``anthias-celery`` worker command wrapped with
  ``nice -n 19 ionice -c 3`` in compose templates so transcodes
  never starve the on-device viewer.
* ``ffmpeg`` invocation pins ``-threads 2`` for the same reason.

Dependencies:
* New: Pillow, pillow-heif (Python); libheif1 in
  ``base_apt_dependencies`` (~1 MB extracted).
* No changes to ffmpeg/ffprobe — already runtime deps.

Tests:
* ``tests/test_processing.py`` covers both tasks: HEIC/HEIF/TIFF
  conversion (incl. uppercase ext, RGBA handling), JPEG no-op,
  corrupt-input failure path, six-row passthrough decision table,
  exotic-codec → H.264 transcode (mpeg2, mjpeg), MP4-with-non-H264
  in-place transcode, ffmpeg timeout/failure/zero-byte cleanup,
  ffprobe missing-stream parsing, on_failure metadata write,
  prepare_asset routing for HEIC / video / remote URL / JPEG.
* PDF support is deferred to a follow-up — out of scope here per
  the issue's "image/video first" framing.

* ci(mypy): include Pillow in mypy group so processing.py type-checks

* fix(processing): address Copilot review comments

* assets_upload now falls back to UploadedFile.content_type and
  finally an extension-based classification so HEIC/HEIF/TIFF
  uploads still classify on hosts whose mimetypes DB doesn't ship
  ``image/heic`` mappings.
* _ffprobe_summary derives the container from ffprobe's
  ``format.format_name`` (a comma-joined synonym list — pick the
  first token in the passthrough set) instead of trusting the
  filename extension. A ``.bin`` file containing MP4 bytes now
  classifies correctly; a ``.mp4`` file containing avi-only bytes
  no longer slips into the passthrough branch.
* Zero-byte ffmpeg output now removes the staging file before
  raising, mirroring the timeout/error branches above. All three
  failure paths share a small _drop_staging() helper so cleanup
  stays consistent.

New tests:
* ffprobe summary prefers format_name over filename, with a
  deterministic fallback to the extension when format_name is
  absent.
* zero-byte transcode output cleans up its staging file (asserts
  no leftover ``staging`` files in assetdir).
* assets_upload classifies HEIC via Content-Type when guess_type
  returns None.

* test(processing): drop /tmp/ paths from ffprobe summary tests

SonarCloud's python:S5443 flags hardcoded ``/tmp/`` paths as
"publicly writable directory" usage. The flagged lines pass these
strings as labels to ``_ffprobe_summary`` (whose internals are
mocked away in those tests) — only the extension is consumed by
the real code path. Switching to ``fixture.<ext>`` keeps the test
intent clear and silences the security hotspot.

* feat(processing): pick transcode target per board (H.264 vs HEVC)

The previous pipeline always emitted H.264, which is wasteful on
boards whose player can hardware- or software-decode HEVC: a typical
clip re-encodes ~30-50% smaller at perceptual parity. Introduce a
board-profile grid keyed on ``DEVICE_TYPE`` (set at image-build time
in the Dockerfile) so each device gets the codec its on-device player
actually decodes well:

  ┌──────────┬─────────────────┬──────────────┬──────────────┐
  │ Board    │ Player          │ HEVC OK?     │ Target codec │
  ├──────────┼─────────────────┼──────────────┼──────────────┤
  │ pi2/pi3  │ VLC + mmal-vc4  │ no HW, slow CPU │ H.264     │
  │ pi4-64   │ mpv + V4L2 HEVC │ HW-decoded   │ HEVC         │
  │ pi5      │ mpv + SW decode │ A76 SW @ 1080p │ HEVC       │
  │ x86      │ mpv + va/nv/qsv │ HW-decoded   │ HEVC         │
  │ unset    │ (dev / unknown) │ assume no    │ H.264        │
  └──────────┴─────────────────┴──────────────┴──────────────┘

Per-board passthrough also tightens: an HEVC upload to a pi3 device
no longer slips through unplayable — it gets transcoded to H.264.
Conversely, an H.264 upload on pi5 still passes through unchanged
(no point re-encoding to HEVC on a row that already plays).

The ``Asset.metadata['transcode_target']`` field now records the
codec the device wanted, written on both passthrough and transcode
paths so the operator can see "this device wanted hevc, the upload
already was hevc, no work needed" without inferring.

* ``_BOARD_PROFILES`` maps each ``DEVICE_TYPE`` value the image
  builder emits to ``{transcode_target, passthrough_video_codecs,
  video_args}``. ``_resolve_board_profile`` reads the env var.
* ``_video_can_passthrough`` and ``_transcode_to_target`` accept an
  optional profile arg; tests pin the profile per case rather than
  mutating env (and one parametrised test still uses env so the
  resolve path is exercised end-to-end).
* HEVC encode args include ``-tag:v hvc1`` for broader player compat
  (mpv/VLC don't care, but iOS / browsers prefer hvc1 over hev1).
* libx265 CRF 28 chosen as the rough perceptual equivalent of
  libx264 CRF 23 — matches the heuristic in libx265's own docs.

Tests:
* New parametrised tests for the codec grid: per-board target codec
  resolution, per-board passthrough decision, per-board ffmpeg argv
  (including ``-tag:v hvc1`` only on HEVC boards), pi3 + HEVC source
  → libx264 transcode, pi5 passthrough records target codec.
* Updated existing passthrough test to pin DEVICE_TYPE=pi5 since
  the default profile is now H.264-only.

* feat(youtube,ui): chain YouTube into the same processing pipeline + error pill

Two unifications driven by the same goal — every "row processing"
state and every "row failed" state should look identical to the
operator regardless of which celery task handled the row.

YouTube → normalize_video_asset chain
-------------------------------------
``download_youtube_asset`` no longer terminates the row's
in-flight state on its own. After yt-dlp lands the .mp4 it:

  * writes ``metadata['source']='youtube'`` and
    ``metadata['source_url']`` so an operator can recover the
    original URL after ``name`` is overwritten with the resolved
    title,
  * leaves ``is_processing=True``,
  * dispatches ``normalize_video_asset`` to take over.

The chained pass runs ffprobe and decides per-board passthrough vs.
transcode using the codec grid landed in this PR. That matters
because yt-dlp's ``format_sort: vcodec:h264`` is a *preference*, not
a guarantee — when no H.264 rendition is available yt-dlp falls
back to whatever it can get (vp9 webm, av1, ...). Without the
chain, those downloads would land on a pi3 device unplayable. With
the chain, the same codec grid that protects file uploads protects
YouTube downloads too, and the row carries the same metadata shape
(``original_ext``, ``transcoded``, ``transcode_target``).

Failure-path unification
------------------------
``_DownloadYoutubeTask.on_failure`` now reuses
``processing._set_processing_error`` + ``processing._notify`` —
single source of truth for the error_message contract instead of
two near-duplicate blocks. A failed YouTube download now writes
``metadata.error_message`` (``DownloadError: 404 Not Found`` etc.)
exactly like a failed normalisation does.

UI: error pill
--------------
The asset table row template renders a warn-coloured "Failed" pill
(in the column previously occupied by the active toggle) when
``metadata.error_message`` is populated and ``is_processing`` is
clear. The full message rides along on the title/aria-label so the
operator can hover for context — no extra modal needed. Same shape
as the existing ``processing-pill`` so the column layout stays
stable across in-progress / failed / done states.

Tests
-----
* ``test_download_youtube_asset_success_chains_into_normalize_video``
  — happy path now asserts ``is_processing=True`` post-task and
  ``dispatch_normalize_video`` was called with the asset_id.
* ``test_download_youtube_asset_on_failure_writes_error_metadata``
  — replaces the old "clears processing" test; asserts both
  ``is_processing=False`` and the ExceptionType+message in
  ``metadata.error_message``.
* Three other YouTube tests updated to mock
  ``dispatch_normalize_video`` so they don't hit a real broker.
* ``test_asset_row_renders_error_pill_when_processing_failed`` and
  ``test_asset_row_no_error_pill_when_metadata_clean`` lock in the
  template's pill rendering.

* feat(processing): normalise BMP, ICO, TGA, JPEG 2000, and AVIF to WebP

Extends the image-normalisation pipeline to cover the realistic set
of "operator drags an unusual image format into the upload modal"
cases, all handled by Pillow's built-in decoders without a new apt
or wheel dependency:

  ┌──────────┬────────────────────────────────────────────────────┐
  │ Format   │ Why we want it converted                           │
  ├──────────┼────────────────────────────────────────────────────┤
  │ BMP      │ Uncompressed; a 4K BMP is ~30 MB vs ~1 MB as WebP. │
  │ ICO      │ Multi-frame Windows icon; pick the largest, flatten│
  │ TGA      │ Screenshot tools / game asset exports; no browser  │
  │          │ support.                                           │
  │ JPEG2000 │ .jp2/.j2k/.jpx/.jpc/.jpf — scanner output; no      │
  │          │ browser support.                                   │
  │ AVIF     │ Modern phone exports. Chromium 85+ renders AVIF,   │
  │          │ but the legacy Pi 2/3 Qt5 WebEngine predates it,   │
  │          │ so converting on upload means one playback path    │
  │          │ across the fleet.                                  │
  └──────────┴────────────────────────────────────────────────────┘

JPEG / PNG / WebP / GIF / SVG remain untouched — already
viewer-friendly *and* well-compressed.

Implementation:
* Extend ``NORMALIZE_IMAGE_EXTS``; the rest of the pipeline already
  accepts any extension in this set (RGBA conversion happens inside
  ``_convert_image_to_webp`` regardless of source format).
* Replace the duplicate extension set in ``assets_upload`` with a
  call to ``processing.needs_image_normalisation`` so the source of
  truth lives in one place.
* Widen the upload modal's <input accept> attribute.

Tests:
* ``test_image_normalises_to_lossless_webp_across_formats`` is a
  parametrised matrix that round-trips each new format end-to-end:
  source synthesised via Pillow, runs through
  ``_run_image_normalisation``, asserts the WebP output decodes
  cleanly back to a 16x16 image. Catches both decoder-side
  regressions (Pillow drops a format) and writer-side regressions
  (RGBA convert mode breaks one source).
* ``test_needs_image_normalisation`` extended to cover every entry
  in the new set plus negative cases (.jpg/.png/.webp/.gif/.svg
  stay False). Total: 109 image-format assertions.

* fix(processing): address Copilot review on commit 8602faff

Six items from Copilot's fresh review pass:

* ``assets_upload`` last-resort image-extension allowlist now
  derives from ``processing.NORMALIZE_IMAGE_EXTS`` rather than
  duplicating the set. Adding a new normalisable format (or
  removing one) only touches one place.
* ``_run_image_normalisation`` cleans up the ``.webp.tmp`` staging
  file on every failure path — Pillow's ``UnidentifiedImageError``
  *and* a generic OSError mid-encode (disk pressure, libheif
  crash). Mirrors the video pipeline's _drop_staging contract.
* ffmpeg failure messages decode the bytes ``stderr`` to UTF-8
  text (with replacement on malformed bytes) and tail-trim long
  output, so ``metadata.error_message`` reads as a real
  diagnostic instead of ``b'Invalid data found'``.
* Removed the dead ``path.normpath(staging) == path.normpath(
  src_uri)`` branch in the video transcode path. With the staging
  suffix in place the two paths can never collide; expanded the
  surrounding comment to explain why.
* Updated ``normalize_video_asset``'s docstring to describe the
  per-board codec grid (libx264 on pi2/pi3, libx265 on pi4-64 /
  pi5 / x86) rather than the now-stale "transcode to H.264 MP4".
* Fixed "truecate" → "truncate" typo in ``_asset_row.html``
  comment.

New tests:
* ``test_image_partial_write_cleans_staging`` — half-writes the
  ``.webp.tmp`` then raises OSError; asserts the runner removes
  the partial file before propagating.
* ``test_format_subprocess_stderr_decodes_and_trims`` — covers
  the bytes-decode, malformed-byte-replacement, tail-trim, and
  empty-stderr cases for the new helper.
* ``test_video_ffmpeg_error_cleans_staging`` strengthened to
  assert the error message contains *no* ``b'...'`` Python repr
  prefix — it's now operator-readable text.

* fix(processing): address Copilot review on commit 778d5c9f

Three code fixes plus a PR-description sync:

* ``_run_image_normalisation`` no-op path (when src_ext isn't in
  NORMALIZE_IMAGE_EXTS) now also clears
  ``metadata.error_message``. Without this, a row re-uploaded as
  a JPEG/PNG after a previously-failed HEIC conversion would
  drop is_processing but keep showing the "Failed" pill — the
  operator's table would lie about the row's current state.
* ``_ffprobe_summary`` now catches ``sh.CommandNotFound`` in
  addition to ``TimeoutException`` / ``ErrorReturnCode``. A
  stripped-down image / dev box without ffprobe in PATH used to
  crash the task with an unhandled CommandNotFound; now it
  collapses to the same all-'unknown' summary so the runner
  falls through to the transcode branch (which itself fails
  clean if ffmpeg is also missing — same on_failure contract).
* Rewrote the ``_ffprobe_summary`` docstring: the actual
  behaviour is "unknown" for missing video stream, "none" only
  for genuinely missing audio stream. The previous "''" claim
  was wrong and would have misled callers / future maintainers.

Tests:
* ``test_image_no_op_path_clears_stale_error_message`` — JPEG
  re-uploaded over a row whose previous attempt failed; the
  no-op branch must wipe the stale error_message.
* ``test_ffprobe_summary_handles_missing_ffprobe_binary`` —
  CommandNotFound side-effect; asserts all-'unknown' summary
  rather than a propagating exception.

* fix(processing): address Copilot review on commit 42697452

Four contract gaps Copilot flagged:

* ``normalize_image_asset`` / ``normalize_video_asset`` use
  ``autoretry_for=(OSError,)`` to recover from transient disk
  pressure. ``FileNotFoundError`` is-a ``OSError`` so the filter
  was catching it too — but a missing source file is permanent,
  and retrying just delays the on_failure that writes
  ``metadata.error_message``. Adding
  ``dont_autoretry_for=(FileNotFoundError,)`` to both decorators
  makes the missing-source raise propagate immediately, so the
  operator sees the "Failed" pill and the error message at the
  next browser refresh instead of waiting through up-to-3
  exponential-backoff retry cycles.

* ``_run_image_normalisation`` and ``_run_video_normalisation``
  both call ``os.replace(staging, final_uri)`` after a successful
  conversion / transcode. A rename failure (cross-device link,
  filesystem-full at the very last step, permissions) was
  outside the existing try/except, so the staging file would
  linger until cleanup()'s 1h sweep. Wrap both in a try/except
  that calls ``_drop_image_staging`` / ``_drop_staging`` on any
  OSError before propagating — the "no leftover staging
  artifacts on failure" contract now holds across every failure
  path.

Tests:
* ``test_image_rename_failure_cleans_staging`` and
  ``test_video_rename_failure_cleans_staging`` — patch
  ``os.replace`` to raise OSError; assert the staging file is
  gone before the exception reaches the runner's caller.
* ``test_normalize_tasks_exclude_filenotfounderror_from_autoretry``
  — celery-config-time check that both tasks expose
  ``FileNotFoundError`` in their dont_autoretry_for tuple, so a
  future change to the decorator can't silently regress the
  immediate-fail contract.

* docs(processing): align docstrings with current normalise scope

Three stale docstring callouts from Copilot's review of 7099b25e:

* ``processing.py`` module docstring — listed only HEIC/HEIF/TIFF
  for the image task. Updated to enumerate the full set
  (HEIC/HEIF/TIFF/BMP/ICO/TGA/JPEG 2000 family/AVIF) and to call
  out the JPEG/PNG/WebP/GIF/SVG no-op short-circuit.
* ``needs_image_normalisation`` docstring — same drift; rewrote
  the leading sentence to match what the predicate actually
  checks (``_ext(...) in NORMALIZE_IMAGE_EXTS``).
* ``tests/test_processing.py`` module docstring — said the image
  task covers only HEIC/HEIF/TIFF and that video transcodes are
  libx264-only. Both stale: extended to enumerate every image
  format the suite exercises, and to describe the per-board
  ``DEVICE_TYPE`` codec grid (libx264 on pi2/pi3, libx265 on
  pi4-64/pi5/x86) that the parametrised video tests pin down.

No code changes; documentation only.

* fix(processing): exclude UnidentifiedImageError from autoretry

Pillow's UnidentifiedImageError inherits from OSError, so it was
getting caught by normalize_image_asset's autoretry_for=(OSError,)
filter — a corrupt-image upload would retry up to 3 times with
exponential backoff before metadata.error_message landed.

Add it to dont_autoretry_for alongside FileNotFoundError so the
permanent-failure contract surfaces immediately. Test extended to
assert both exclusions are in place at celery-config time.

* docs(website): describe new upload-time normalisation in user-facing copy

Reflect the per-board codec grid + the wider image format set on
the marketing site, but in plain language — operators don't care
about codec names, mpv vs VLC, or hardware-decode paths.

* features.html — replaced the single "Images, videos, and web
  pages" card with three smaller ones: "Drop in almost anything"
  (the wider format support), "Plays smoothly on any device"
  (the per-board normalisation, framed as "Anthias prepares it
  in the background"), and "YouTube on your screen" (the YouTube
  download path, with the no-ads angle).
* faq.yaml — added "What image and video files can I upload?"
  entry, written conversationally; reframed the existing YouTube
  answer to mention the local-playback / no-ads benefit.

Avoids: codec names (H.264/HEVC), library names (ffmpeg/yt-dlp),
implementation terms (transcode/normalisation/passthrough), and
file-format extensions in the running prose. The Processing /
Failed dashboard badges get a one-line mention so operators know
what they'll see while a file is being prepared.

* fix(views): recover image extension from MIME subtype as last-resort fallback

Two items from Copilot's review of eb785f76:

* ``assets_upload`` had a two-step extension fallback (mimetypes
  guess → operator-supplied filename). On a host with a sparse
  mimetypes DB *and* an upload whose name has no extension —
  e.g. an Android share that renames the file to ``image`` —
  both fell through and the file landed extensionless. With no
  ``.heic`` / ``.avif`` / etc. on disk, ``needs_image_normalisation``
  returned False and the upload silently slipped past the
  normalise pipeline. Added a third step: when both prior
  fallbacks come back empty, derive ``.<subtype>`` from the
  ``image/<subtype>`` MIME and accept it only if that ext is in
  ``NORMALIZE_IMAGE_EXTS`` — same source of truth the pipeline
  already uses, so adding a new normalisable format only touches
  one place.

* Fixed a typo in the ``Asset.metadata`` model field comment
  (``image_normalize_asset`` / ``video_normalize_asset`` →
  ``normalize_image_asset`` / ``normalize_video_asset``) so the
  comment matches the actual task names.

New test ``test_assets_upload_extensionless_heic_falls_back_to_mime_subtype``
mocks both ``guess_type`` and ``guess_extension`` to simulate the
worst-case sparse-DB scenario, uploads a file with no name
extension, and asserts the row lands at ``<id>.heic`` with the
normalise task dispatched.

* fix(processing): include canonical ffprobe format names in passthrough set

Copilot caught a real bug: ``_PASSTHROUGH_CONTAINERS`` was a set of
short extension labels (``ts``, ``mkv``, ...), but the same set is
matched against ffprobe's reported ``format.format_name`` —
which uses different canonical names. Concretely:

  * ``.ts`` → ffprobe reports ``mpegts``, not ``ts``  → forced
    transcode despite being passthrough-eligible.
  * ``.mkv`` → ffprobe reports ``matroska,webm`` — only worked
    *accidentally* before because ``webm`` happened to be in the
    set, mislabelling the container in metadata.

Fix: add ``mpegts`` and ``matroska`` to the set with a comment
explaining the dual purpose (extension labels + canonical names).
Containers whose canonical name already matches the extension label
(``mp4``/``mov``/``mpeg``/``flv``/``avi``/``webm``) stay listed
once.

New parametrised test ``test_passthrough_containers_match_real_ffprobe_format_names``
locks the contract by mocking ``_ffprobe_streams`` with the actual
``format_name`` strings ffprobe emits for each container. Asserts
both the resolved label is in ``_PASSTHROUGH_CONTAINERS`` *and* the
``_video_can_passthrough`` decision returns True on a pi5 profile —
so a future change to either the set or the resolution logic that
re-introduces the regression fails this test.

* fix(processing): drop redundant .copy() in image conversion + stale comments

Three items from Copilot's latest review pass:

* ``_convert_image_to_webp`` was holding TWO full pixel buffers in
  memory at the WebP encode step: ``image.convert('RGBA')`` already
  returns a new image with its own buffer, then ``.copy()`` cloned
  it again. Meaningful on a Pi 5 decoding a 50 MP HEIC where each
  buffer is ~200 MB. Move the ``.save()`` inside the
  ``with Image.open(...)`` block instead — the converted image is
  safe to use across the close, but encoding inside the context
  means we never hold both source decoder state *and* the
  converted buffer at once.
* ``docker-compose.yml.tmpl`` worker comment said "exotic-codec →
  H.264 transcode"; rephrased to "board-appropriate H.264/HEVC
  transcode" to match the per-board grid.
* ``_asset_modal.html`` accept-attribute comment said "exotic
  video codecs → H.264 MP4"; same rewording.

* fix(processing): single ffprobe per upload + safer duration probe + byte-true stderr trim

Three Copilot items, all real bugs in the failure semantics or
performance of the video pipeline:

* ``_ffprobe_summary`` now also extracts ``format.duration`` from
  the same probe payload and returns it as ``duration_seconds``
  alongside container/codec info. The runner's passthrough path
  reuses that value instead of re-shelling ffprobe via
  ``get_video_duration`` — saves one probe per passthrough row,
  which is the common case on a per-board-codec-matched fleet.
  Floor to 1s mirrors the YouTube-task rule. Probe-failure path
  collapses to ``duration_seconds=None`` like the other fields.
* ``_resolve_duration_seconds`` now catches the exceptions
  ``get_video_duration`` raises (sh.ErrorReturnCode_1 on bad
  format, generic Exception on unexpected failures) and returns
  None instead of propagating. After a successful transcode the
  file is on disk and the row is otherwise ready; failing the
  whole task because the *post*-transcode duration probe stumbled
  was an own-goal — the operator can edit duration manually.
* ``_format_subprocess_stderr`` now trims raw bytes BEFORE
  decoding so ``_STDERR_TAIL_BYTES`` is truly a byte limit, not a
  character limit. Multibyte UTF-8 in the keep window can no
  longer push the decoded length past the budget. Mid-multibyte
  cuts produce the Unicode replacement character via
  ``errors='replace'`` rather than crashing.

New tests:
* ``test_ffprobe_summary_extracts_duration_from_probe_payload``
  covers good/sub-second/missing/unparseable values.
* ``test_video_passthrough_uses_summary_duration_no_second_probe``
  asserts ``get_video_duration`` is *not* called in the passthrough
  branch — locks the no-double-probe contract.
* ``test_resolve_duration_seconds_swallows_probe_exceptions``
  proves the helper returns None instead of propagating.
* ``test_format_subprocess_stderr_byte_trim_handles_multibyte_utf8``
  exercises the mid-multibyte cut + decoded-len bound.

* fix(processing): unify stderr trim across str/bytes; skip viewer reload on intermediate hops

Two more Copilot items:

* ``_format_subprocess_stderr`` had two trim branches: bytes (via
  byte-precise tail) and str (via character-count tail). The str
  branch could exceed _STDERR_TAIL_BYTES under multibyte text.
  Normalise to bytes once at the top (encoding str via UTF-8 with
  replacement) and run a single byte-precise trim — both paths
  now respect the byte budget identically.

* ``_notify`` gains a ``reload_viewer`` keyword. The YouTube
  task's intermediate notification (after writing title/duration
  but before chaining into normalize_video_asset, while
  is_processing is still True) now passes ``reload_viewer=False``.
  The browser-side dashboard nudge still fires so the operator
  sees the resolved title immediately; the on-device viewer
  doesn't reload its playlist for a row that's still mid-flight.
  The chained normalize step's _notify (which runs once
  is_processing clears and the file is final) handles the actual
  viewer reload — saves the viewer one redundant playlist refresh
  per YouTube upload.

Tests:
* ``test_notify_browser_only_skips_viewer_reload`` exercises the
  new flag.
* The YouTube-success test now mocks Redis and asserts
  ``publish.assert_not_called()`` to lock in the no-intermediate-
  reload contract.

* docs: drop stale PDF reference, fix grammar nit

* processing.py: _set_processing_error docstring listed
  "encrypted PDF" as a permanent-failure case from the issue's
  three-workstream framing. PDF is explicitly out of scope for
  this PR — replaced with concrete failure modes the current
  image/video tasks actually surface.
* docker-compose.yml.tmpl: "a single configure here" reads as
  a verb. Changed to "a single configuration here".

* fix(processing): reject decompression-bomb image uploads before decode

Real security gap Copilot caught: Pillow happily allocates pixel
buffers proportional to ``width × height`` regardless of how
small the source file is on disk. A few KB of crafted bytes
advertising a 1,000,000×1,000,000 image would force the celery
worker to attempt a multi-TB allocation — at best a hard OOM
that kills the worker and stalls the upload pipeline; at worst
a swap-storm that drags the on-device viewer with it.

Pillow ships ``MAX_IMAGE_PIXELS`` (default ~89 MP) which raises
``DecompressionBombError`` past 2× that threshold and warns
softly at the first level. That default is too lax for signage
content (where 4K @ 8 MP is already large) and pillow-heif's own
decoder can bypass the check on certain HEIF/AVIF inputs.

Two layers of protection:

1. ``_MAX_IMAGE_PIXELS = 50_000_000`` constant — bigger than any
   legitimate phone-camera output (modern flagships top out
   around 50 MP at the standard 4:3 aspect after JPEG/HEIC
   compression) but tiny compared to typical bomb fixtures.
2. ``_convert_image_to_webp`` reads ``image.size`` from the
   format header *before* any decode and raises ValueError if
   the dimensions exceed the cap. The on_failure path writes
   the message to ``metadata.error_message`` like any other
   permanent failure. Lowering Pillow's global
   ``Image.MAX_IMAGE_PIXELS`` to the same value protects any
   future call site that goes through ``Image.open`` outside
   this helper.

New test ``test_image_decompression_bomb_is_rejected`` mocks
``Image.open`` to return a stub whose ``.size`` exceeds the cap
(synthesising a real billion-pixel fixture would itself need
GBs of memory) and asserts the runner raises before any
``convert()`` / ``save()`` is reached.

* docs(views): sync assets_upload comment with NORMALIZE_IMAGE_EXTS

Inline comment listed only HEIC/HEIF/TIFF/BMP, but the constant it
points at also covers ICO/TGA/JP2 family/AVIF. Rewrote to reference
the constant as source of truth and enumerate the current set so
the comment stops drifting on the next addition.

* fix(processing): disable failed assets + reject misnamed bypass uploads

Two real bugs Copilot caught:

* ``_set_processing_error`` cleared ``is_processing`` but left
  ``is_enabled=True``, so a failed normalisation would still get
  queued for playback by the viewer's scheduler (which filters on
  is_enabled + date window only — it doesn't check
  ``metadata.error_message``). The on-screen result was a black
  rectangle for the row's duration. Flipping ``is_enabled=False``
  alongside ``is_processing=False`` keeps the bad row out of
  rotation; the operator can re-enable from the dashboard once
  the underlying issue is fixed. The ``error-pill`` template
  already replaces the active toggle so the operator sees the
  failure state before they re-enable.

* ``assets_upload`` deferred to ``mimetypes.guess_type`` first and
  only consulted ``UploadedFile.content_type`` when guess_type
  produced no image/video classification. If an operator renamed
  a HEIC to ``photo.jpg`` and uploaded it, guess_type returned
  ``image/jpeg`` (a passthrough type), the Content-Type fallback
  was skipped, the file landed as ``.jpg``, and the normalise
  pipeline never ran — a silent failure-to-render. Modern
  browsers sniff the actual bytes and tag the upload with
  ``image/heic`` regardless of filename, so the view now
  cross-checks: when guess_type and Content-Type share a
  top-level (image/* or video/*) but disagree on subtype, AND
  Content-Type's subtype maps to a NORMALIZE_IMAGE_EXTS
  extension, prefer Content-Type. Only upgrades — never downgrades —
  to avoid the inverse case (a JPEG mis-tagged as image/heic by
  the browser somehow) accidentally routing into the pipeline.

Tests:
* test_set_processing_error_writes_metadata extended to assert
  is_enabled flips to False alongside the error message write.
* New test_assets_upload_misnamed_heic_uses_browser_content_type
  uploads HEIC bytes named ``photo.jpg`` and asserts the file
  lands as .heic with the normalise task dispatched.

* build(pi2/pi3): add Pillow + pillow-heif build deps for armv7 source builds

Real concern Copilot caught about the Pillow / pillow-heif
introduction: neither ships armv7l manylinux wheels (Pillow 11
explicitly dropped them in its release notes; pillow-heif only
publishes x86_64 / aarch64). uv's resolution on a pi2 / pi3
image build therefore falls back to sdist, and the existing
``builder_extra_apt`` only covers libcec / libdbus headers — the
``uv sync`` step would gcc-fail at the first JPEG / HEIF binding.

Extend ``get_uv_builder_context`` to take a ``board`` argument
and append the Pillow / pillow-heif build-time deps when
``service='server'`` and ``board in {'pi2', 'pi3'}``. 64-bit
boards (pi4-64 / pi5 / x86) and the test image still get binary
wheels and the apt list stays unchanged for them — adding the
deps unconditionally would waste ~70 MB of layer space on every
non-armv7 build.

Pillow's documented build deps:
  libjpeg62-turbo-dev / libfreetype-dev / liblcms2-dev /
  libopenjp2-7-dev / libtiff-dev / libwebp-dev / zlib1g-dev

pillow-heif: libheif-dev (the libheif1 runtime is already in
``base_apt_dependencies`` for both architectures).

Verified: ``--build-target pi3`` now generates a Dockerfile that
installs the new build deps; ``--build-target pi5`` does not.
2026-05-07 12:22:36 +01:00