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daedalus-v4l2{,-dkms}: 79256dc/6ffe92b -> 5d8b436 — revert parking design

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Lock-step downgrade of both packages to the revert tip of
daedalus-v4l2 (PR #10 closed PRs #7 + #8).  After
0.1.0+r28+g79256dc-1 / 0.1.0+r30+g6ffe92b-1 landed in production,
mpv (--hwdec=vaapi-copy) failed pre-playing with "Unable to dequeue
buffer: Resource temporarily unavailable" because the daemon
parked CAPTURE buffers waiting for libavcodec's display-order
reorder, violating libva's V4L2 stateless 1:1 contract.  See
daedalus-v4l2#9 for the diagnostic, #10 for the revert PR.

DAEDALUS_PROTO_VERSION drops 1 → 0; install both .debs in the same
apt transaction.  Userspace ABI returns to the f0d4186-equivalent
behaviour, plus PR #4 (cosmetic H.264 menu controls).  The
daedalus-v4l2-dkms #64 multi-kernel postinst behaviour stays in
build-deb.sh.

Visible regression: H.264 B-frame streams in Firefox return to the
"2 1 4 3 6 5" pair-swap visual.  Proper fix (concurrent in-flight
requests in daemon + display-order reorder moved into libva-v4l2-
request-fourier) tracked at daedalus-v4l2#11.

Refs:
  * reauktion/daedalus-v4l2#9
  * reauktion/daedalus-v4l2#10  (merged)
  * reauktion/daedalus-v4l2#11
This commit is contained in:
Claude (noether)
2026-05-21 15:42:03 +02:00
parent a9f1b833b9
commit 34972ae9c1
6 changed files with 72 additions and 32 deletions
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debian/daedalus-v4l2-dkms/build-deb.sh
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@@ -14,9 +14,9 @@
# Sibling userspace package: ../daedalus-v4l2/build-deb.sh
set -euo pipefail
UPSTREAM_COMMIT=6ffe92bcacccbf228c398a10c21a6818f07c67d2
PKGVER=0.1.0+r30+g6ffe92b
PKGREL=1 # reset for new upstream pin (6ffe92b — claim src/dst at device_run, fixes #8 panic); still carries the #64 multi-kernel postinst fix
UPSTREAM_COMMIT=5d8b4369e58ab947d1c56b1f718293c57c6065b5
PKGVER=0.1.0+r33+g5d8b436
PKGREL=1 # reset for new upstream pin (5d8b436 — revert parking design); still carries the #64 multi-kernel postinst fix
MODULE_NAME=daedalus_v4l2
HERE=$(dirname "$(readlink -f "$0")")
debian/daedalus-v4l2-dkms/debian/changelog
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@@ -1,3 +1,17 @@
daedalus-v4l2-dkms (0.1.0+r33+g5d8b436-1) bookworm trixie; urgency=medium
* Bump to 5d8b436 — reverts daedalus-v4l2 PRs #7 + #8. Kernel
module returns to the pre-#7 buf_done_and_job_finish completion
model: no src/dst lifecycle decoupling, no parked dst_bufs, no
1:1-contract violation against libva-v4l2-request-fourier
(closes daedalus-v4l2#9 + #10 as won't-fix at this layer; proper
fix tracked at daedalus-v4l2#11).
* Wire-protocol drops 1 → 0; lock-step install with daedalus-v4l2
0.1.0+r33+g5d8b436 REQUIRED.
* Carries forward the #64 multi-kernel postinst fix.
-- Markus Fritsche <mfritsche@reauktion.de> Thu, 21 May 2026 14:50:00 +0000
daedalus-v4l2-dkms (0.1.0+r30+g6ffe92b-1) bookworm trixie; urgency=medium
* Bump to 6ffe92b — fixes the kernel panic regression introduced
debian/daedalus-v4l2/build-deb.sh
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@@ -11,16 +11,16 @@
# Upstream repo: https://git.reauktion.de/reauktion/daedalus-v4l2
set -euo pipefail
# Same pin as the Arch PKGBUILD. 79256dc = "kernel + daemon: H.264
# B-frame display reorder fix (closes #6)" — adds the wire-protocol
# src_pts / output_src_pts / RESP_FRAME flags split that lets H.264
# streams with B-frames preserve display order through libva → kernel
# → daemon. PROTO_VERSION bumps 0 → 1; lock-step userspace + kernel
# rebuild REQUIRED (daedalus-v4l2-dkms build-deb.sh pinned to the same
# commit).
UPSTREAM_COMMIT=79256dc7ef41f83873ca9c23db20f5888858e65d
PKGVER=0.1.0+r28+g79256dc
PKGREL=1 # reset for new upstream pin (79256dc — H.264 B-frame reorder fix)
# Same pin as the Arch PKGBUILD. 5d8b436 reverts PRs #7 + #8 (the
# parking design that broke libva's 1:1 CAPTURE-buffer contract; see
# daedalus-v4l2#9 + #10). Tree is content-equivalent to f0d4186
# plus PR #4 (DECODE_MODE / START_CODE menu controls — cosmetic
# warning fix). PROTO_VERSION drops 1 → 0; lock-step install with
# daedalus-v4l2-dkms 0.1.0+r33+g5d8b436 REQUIRED. Proper H.264
# reorder fix tracked separately at daedalus-v4l2#11.
UPSTREAM_COMMIT=5d8b4369e58ab947d1c56b1f718293c57c6065b5
PKGVER=0.1.0+r33+g5d8b436
PKGREL=1 # reset for new upstream pin (5d8b436 — revert parking design)
HERE=$(dirname "$(readlink -f "$0")")
debian/daedalus-v4l2/debian/changelog
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@@ -1,3 +1,28 @@
daedalus-v4l2 (0.1.0+r33+g5d8b436-1) bookworm trixie; urgency=medium
* Bump to 5d8b436 — reverts daedalus-v4l2 PRs #7 + #8 (the parking
design that broke libva-v4l2-request-fourier's 1:1 CAPTURE
contract; see daedalus-v4l2#9 + #10). After daemon-r28+g79256dc
landed, mpv (--hwdec=vaapi-copy) failed pre-playing with
"Unable to dequeue buffer: Resource temporarily unavailable" /
"Failed to end picture decode" because the daemon parked CAPTURE
buffers waiting for libavcodec to release H.264 B-frames in
display order — violating the V4L2 stateless 1:1 contract.
Firefox tolerated the mess (visible "2 1 4 3" pair-swap); mpv
bailed.
* This bump restores f0d4186-equivalent behaviour, plus PR #4
(cosmetic H.264 DECODE_MODE / START_CODE menu controls). PR #7
+ PR #8 wire-protocol additions (src_pts / output_src_pts /
RESP_FRAME flags) are reverted — DAEDALUS_PROTO_VERSION drops
back from 1 → 0. Lock-step install with daedalus-v4l2-dkms
0.1.0+r33+g5d8b436 REQUIRED.
* Visible regression: H.264 B-frame streams in Firefox revert to
the original "2 1 4 3 6 5" pair-swap visual. The proper fix
(concurrent in-flight requests in daemon + display-order reorder
in libva-v4l2-request-fourier) is tracked at daedalus-v4l2#11.
-- Markus Fritsche <mfritsche@reauktion.de> Thu, 21 May 2026 14:50:00 +0000
daedalus-v4l2 (0.1.0+r28+g79256dc-1) bookworm trixie; urgency=medium
* Bump to 79256dc — H.264 B-frame display reorder fix (closes