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

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