daedalus-v4l2: 3bc0da1 -> 6e6dfa1 — dlopen Kwiboo soname 62 (#16)

.gitea/workflows/build.yml

@@ -1159,13 +1159,18 @@ jobs:
           retry() { for i in 1 2 3; do "$@" && return 0; rc=$?; echo "retry $i (exit=$rc)" >&2; sleep $((i*5)); done; return 1; }
           export DEBIAN_FRONTEND=noninteractive
           retry apt-get update -qq
-          # libav*-dev provide the headers daedalus daemon dlopens at
-          # runtime — Debian's stock packages match the trixie ABI the
-          # daemon will encounter on Pi 5 hosts (both ship libavcodec
-          # 61.x).  The fourier ffmpeg fork isn't needed here; the
-          # daemon never link-binds against libav (Option γ — dlopen
-          # at runtime), so any header set with the right struct
-          # definitions works.
+          # FFmpeg headers + sonames the daemon dlopens.  As of
+          # daedalus-v4l2 PR #16 (commit 514da29), the daemon targets
+          # the Kwiboo fork's libavcodec.so.62 / libavformat.so.62 /
+          # libavutil.so.60 at /opt/fourier — so the build needs
+          # /opt/fourier/include and /opt/fourier/lib/pkgconfig.
+          # ffmpeg-v4l2-request-fourier provides both (plus the
+          # runtime libs the .deb will dlopen on the target host;
+          # we install it as a build-dep here and the dpkg-shlibdeps
+          # step pulls it into the daemon .deb's Depends automatically).
+          # Debian-stock libav*-dev removed — would conflict on
+          # /usr/include/libavcodec/avcodec.h vs /opt/fourier's copy.
+          #
           # libvulkan-dev + glslang-tools: needed by the in-build
           # daedalus-fourier fetch (build-deb.sh fetches the sibling
           # library, cmake-builds it into a temp prefix, then the
@@ -1176,7 +1181,7 @@ jobs:
           # reauktion/daedalus-v4l2 PR #13.
           retry apt-get install -y --no-install-recommends \
               build-essential cmake ninja-build pkg-config git \
-              libavcodec-dev libavformat-dev libavutil-dev libdrm-dev \
+              ffmpeg-v4l2-request-fourier libdrm-dev \
               libvulkan-dev glslang-tools \
               linux-libc-dev \
               curl ca-certificates openssh-client rsync dpkg-dev

arch/daedalus-v4l2/PKGBUILD

@@ -16,18 +16,19 @@
 pkgname=daedalus-v4l2
 _upstreampkg=daedalus-v4l2
 
-# 3bc0da1 = picks up daedalus-v4l2 PR #15 — per-frame `decode_us=N`
-# in the `decoder: OK` log line + a periodic `decoder stats` summary
-# every 60 frames.  Pure observability — baseline for the
-# substitution work in daedalus-v4l2#11 step 2.  Daemon still needs
-# daedalus-fourier at build time (Arch packaging for that is a
-# follow-up; Debian side fetches inline via build-deb.sh).
-_commit=3bc0da168cc0aa2271bfb6bc2864b49c48291185
+# 6e6dfa1 = picks up daedalus-v4l2 PR #16 — daemon now dlopens
+# the Kwiboo fourier fork's libavcodec.so.62 / libavformat.so.62 /
+# libavutil.so.60 at /opt/fourier instead of Debian-stock soname
+# 61/61/59.  First step on the daedalus-fourier substitution arc
+# (daedalus-v4l2#11).  Daemon still needs daedalus-fourier at
+# build time (Arch packaging for that is a follow-up; Debian side
+# fetches inline via build-deb.sh).
+_commit=6e6dfa144da7bc7fa8be50c8da91d7d1c6132a2c
 
 # 0.1.0 (pre-1.0) + commit count + short sha.  Bump the .Y on each
 # Phase 8.x close.  pkgver() recomputes at build time.
-pkgver=0.1.0.r39.3bc0da1
-pkgrel=1  # reset for new upstream pin (3bc0da1 — decode_us + stats)
+pkgver=0.1.0.r41.6e6dfa1
+pkgrel=1  # reset for new upstream pin (6e6dfa1 — soname 62 via /opt/fourier)
 pkgdesc="Userspace daemon for the daedalus-v4l2 V4L2 stateless decoder shim (VP9/AV1/H.264 on Pi 5 / CM5)"
 arch=('aarch64')
 url="https://git.reauktion.de/reauktion/daedalus-v4l2"
@@ -35,7 +36,7 @@ license=('BSD-2-Clause' 'GPL-2.0-or-later')
 # Daemon dlopens libavformat.so.61 / libavcodec.so.61 / libavutil.so.59
 # at runtime (Option γ — see daemon/src/ffmpeg_loader.h).  ffmpeg
 # provides those; we don't link them.
-depends=('ffmpeg' 'libdrm')
+depends=('ffmpeg-v4l2-request-fourier' 'libdrm')
 # Headers from libav*-dev needed at compile time for type-safe function
 # pointer signatures; pkg-config locates them.
 makedepends=('cmake' 'ninja' 'pkgconf' 'git' 'ffmpeg')

debian/daedalus-v4l2/build-deb.sh

@@ -11,14 +11,17 @@
 # Upstream repo: https://git.reauktion.de/reauktion/daedalus-v4l2
 set -euo pipefail
 
-# 3bc0da1 = picks up daedalus-v4l2 PR #15 — per-frame `decode_us=N`
-# in the `decoder: OK` log line + a periodic `decoder stats` summary
-# every 60 frames (codec, fps, avg decode_us, MBs/s, B/MB).  Pure
-# observability — no behaviour change.  Baseline metrics for the
-# substitution work in daedalus-v4l2#11 step 2.
-UPSTREAM_COMMIT=3bc0da168cc0aa2271bfb6bc2864b49c48291185
-PKGVER=0.1.0+r39+g3bc0da1
-PKGREL=1  # reset for new upstream pin (3bc0da1 — decode_us + stats)
+# 6e6dfa1 = picks up daedalus-v4l2 PR #16 — daemon now dlopens
+# the Kwiboo fourier fork's libavcodec.so.62 / libavformat.so.62 /
+# libavutil.so.60 at /opt/fourier instead of Debian-stock soname
+# 61/61/59.  First step on the daedalus-fourier substitution arc
+# (daedalus-v4l2#11): routes the daemon through the libavcodec
+# 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=6e6dfa144da7bc7fa8be50c8da91d7d1c6132a2c
+PKGVER=0.1.0+r41+g6e6dfa1
+PKGREL=1  # reset for new upstream pin (6e6dfa1 — soname 62 via /opt/fourier)
 
 # daedalus-fourier pin.  d87239d = marfrit/daedalus-fourier PR #1 merge
 # (install rules + pkg-config, enables this consumer to find_package
@@ -64,7 +67,7 @@ SRCDIR=daedalus-v4l2
 # Build daemon (CMake) — point pkg-config at the daedalus-fourier
 # temp prefix so pkg_check_modules(DAEDALUS_FOURIER …) resolves to it.
 cd "$SRCDIR/daemon"
-PKG_CONFIG_PATH="$FOURIER_PREFIX/lib/pkgconfig" \
+PKG_CONFIG_PATH="$FOURIER_PREFIX/lib/pkgconfig:/opt/fourier/lib/pkgconfig" \
 cmake -B build -G Ninja \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_INSTALL_PREFIX=/usr

debian/daedalus-v4l2/debian/changelog

@@ -1,3 +1,22 @@
+daedalus-v4l2 (0.1.0+r41+g6e6dfa1-1) bookworm trixie; urgency=medium
+
+  * Bump to 6e6dfa1 — daedalus-v4l2 PR #16.  Daemon dlopens Kwiboo
+    fourier fork's libavcodec.so.62 / libavformat.so.62 /
+    libavutil.so.60 at /opt/fourier instead of Debian-stock
+    soname 61/61/59.  First step on the daedalus-fourier
+    substitution arc (daedalus-v4l2#11): the next PR series
+    layers daedalus_recipe_dispatch_h264_* substitution patches
+    into ffmpeg-v4l2-request-fourier's H264DSPContext NEON init,
+    reaching the daemon's production decode path.
+  * Build: PKG_CONFIG_PATH now includes /opt/fourier/lib/pkgconfig
+    so daemon's pkg_check_modules picks up the Kwiboo .pc files.
+  * CI workflow build-deps: libavcodec-dev / libavformat-dev /
+    libavutil-dev (Debian stock 7.1.3) → ffmpeg-v4l2-request-fourier
+    (provides /opt/fourier/include + .pc files).
+  * Wire protocol unchanged.  No daedalus-v4l2-dkms bump.
+
+ -- Markus Fritsche <mfritsche@reauktion.de>  Thu, 21 May 2026 21:30:00 +0000
+
 daedalus-v4l2 (0.1.0+r39+g3bc0da1-1) bookworm trixie; urgency=medium
 
   * Bump to 3bc0da1 — picks up daedalus-v4l2 PR #15.  Per-frame