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daedalus-v4l2 + daedalus-v4l2-dkms: bump to 872eec5 — PROTO_MAX_PAYLOAD 1 MiB (#20)

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Picks up reauktion/daedalus-v4l2 PR #20 (closes #19): wire-protocol
cap DAEDALUS_PROTO_MAX_PAYLOAD raised from 64 KiB to 1 MiB.
DAEDALUS_MAX_BITSTREAM follows; daedalus_fill_output_fmt now reports
OUTPUT_MPLANE sizeimage = ~1 MiB.

Fixes the Firefox YouTube avc1 SW-fallback observed on higgs when
any H.264 slice exceeded 64 KiB (routine on 720p+ streams).
libva-v4l2-request-fourier's S_FMT-driven OUTPUT-pool resize was
clamping back to 65484 and Firefox lost the slice; now the kernel
honours the larger sizeimage.

Both packages bumped to 0.1.0+r45+g872eec5-1:

  - daedalus-v4l2 (daemon): r43 -> r45.  Daemon-side allocations
    are dynamic, so the only growth is one ~1 MiB read buffer per
    daemon process at startup.
  - daedalus-v4l2-dkms (kernel module): r33 -> r45.  Skips the
    daemon-only bumps r37/r39/r41/r43 (no kernel/include change in
    that range) and lands the PROTO_MAX_PAYLOAD bump.

LOCK-STEP INSTALL REQUIRED: effective cap is min(kernel, daemon).
A stale kernel with a new daemon (or vice versa) still rejects
>64 KiB payloads.  apt/pacman should pick both up in one
transaction since they share the same upstream pin.

Wire-protocol value-only change in include/daedalus_v4l2_proto.h;
struct layout unchanged.  DAEDALUS_PROTO_VERSION stays at 0.
This commit is contained in:
Markus Fritsche
2026-05-22 20:50:04 +02:00
parent 9d30c34be9
commit d449ec1073
6 changed files with 56 additions and 12 deletions
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debian/daedalus-v4l2/build-deb.sh
Vendored
+3 -3
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@@ -19,9 +19,9 @@ set -euo pipefail
# source tree we own in marfrit-packages. Headers + .pc files
# come from ffmpeg-v4l2-request-fourier (installed by the CI
# workflow before this script runs; see PKG_CONFIG_PATH below).
UPSTREAM_COMMIT=1d8f5af1646c7c09b75e07be0c2763b37ea367e6
PKGVER=0.1.0+r43+g1d8f5af
PKGREL=1 # reset for new upstream pin (1d8f5af — pause-time tiny-bitstream filter, closes #17)
UPSTREAM_COMMIT=872eec505eb91b561892d02a0526749348ddc121
PKGVER=0.1.0+r45+g872eec5
PKGREL=1 # reset for new upstream pin (872eec5 — PROTO_MAX_PAYLOAD 64 KiB -> 1 MiB, closes #19); lock-step with daedalus-v4l2-dkms 0.1.0+r45+g872eec5 REQUIRED
# daedalus-fourier pin. d87239d = marfrit/daedalus-fourier PR #1 merge
# (install rules + pkg-config, enables this consumer to find_package
debian/daedalus-v4l2/debian/changelog
Vendored
+23
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@@ -1,3 +1,26 @@
daedalus-v4l2 (0.1.0+r45+g872eec5-1) bookworm trixie; urgency=medium
* Bump to 872eec5 — picks up daedalus-v4l2 PR #20 (closes #19).
Wire-protocol cap DAEDALUS_PROTO_MAX_PAYLOAD raised from 64 KiB
to 1 MiB. DAEDALUS_MAX_BITSTREAM follows; daedalus_fill_output_fmt
now reports OUTPUT_MPLANE sizeimage = ~1 MiB instead of 65484.
libva-v4l2-request-fourier's S_FMT-driven OUTPUT-pool resize
finally succeeds; Firefox no longer falls off to libmozavcodec
SW when an H.264 slice exceeds 64 KiB (routine on any
720p+ stream).
* #define-only change in include/daedalus_v4l2_proto.h; struct
layout unchanged. But effective cap is min(kernel, daemon) —
lock-step install of this package WITH
daedalus-v4l2-dkms 0.1.0+r45+g872eec5 REQUIRED.
* Daemon-side allocations are dynamic (malloc-on-payload), so
the practical growth is one ~1 MiB read buffer per daemon
process at startup. Negligible on Pi 5 / 8 GB.
* Picks up the same r43 -> r45 transition as daedalus-v4l2-dkms
(which had been stuck at r33+g5d8b436 since the parking-design
revert because the kernel module didn't change in r37/r39/r41/r43).
-- Markus Fritsche <mfritsche@reauktion.de> Fri, 22 May 2026 21:00:00 +0000
daedalus-v4l2 (0.1.0+r43+g1d8f5af-1) bookworm trixie; urgency=medium
* Bump to 1d8f5af — picks up daedalus-v4l2 PR #18 (closes #17).