marfrit
ff9db4e273
DKMS build for daedalus_v4l2 fails against kernel 6.18+ with:
daedalus_v4l2_main.c:1049: error: too few arguments to function
'v4l2_fh_add'
v4l2-fh.h:97: void v4l2_fh_add(struct v4l2_fh *fh, struct file *filp);
(same for v4l2_fh_del). Signature changed exactly at v6.18 — verified
v6.13–v6.17 still use the one-arg form via raw.githubusercontent.com
tag walk.
Upstream commit f0cd29a wraps the calls with LINUX_VERSION_CODE so the
module keeps building against:
* 6.12 LTS / RPi 6.12.75 (one-arg) — hertz
* 6.12.88+deb13-arm64 (one-arg)
* 6.18.29+rpt-rpi-2712 (file* arg) — higgs running kernel
Higgs (Pi CM5) was hitting this: daedalus-v4l2-dkms 0.1.0+r16+gf55b2cd
showed 'installed' in dpkg but DKMS autoinstall failed for the running
6.18.29 kernel. Re-running 'dkms autoinstall' after this bump succeeds
+ /dev/daedalus-v4l2 appears.
Also widens debian/daedalus-v4l2-dkms Recommends from
linux-headers-generic | linux-headers
to
linux-headers-rpi-2712 | linux-headers-rpi | linux-headers-generic | linux-headers
so apt pulls the right metapackage on Raspberry Pi OS / RPi-2712
kernels by default.
Userspace pkgver bumps in lockstep (no userspace change in f0cd29a, but
keeps daedalus-v4l2 + daedalus-v4l2-dkms versions matching for
LIBVA_DRIVER_NAME selection sanity).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
107 lines
3.9 KiB
Bash
Executable File
107 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# Build daedalus-v4l2_<ver>_arm64.deb (userspace daemon + test tools).
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#
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# Mirrors arch/daedalus-v4l2 (Arch Linux build). The companion DKMS
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# package (debian/daedalus-v4l2-dkms) carries the kernel module
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# separately so apt/dpkg can split kernel-version-tied and userspace
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# upgrade cadence.
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#
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# Sibling Arch package: ../../arch/daedalus-v4l2/PKGBUILD
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# Sibling DKMS package: ../daedalus-v4l2-dkms/build-deb.sh
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# Upstream repo: https://git.reauktion.de/reauktion/daedalus-v4l2
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set -euo pipefail
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# Same pin as the Arch PKGBUILD. f0cd29a = "Phase 8.13: byte-exact
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# end-to-end via libva (consumer target hit)" — first commit where the
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# full ffmpeg -hwaccel vaapi → libva → /dev/video0 → daemon path lands
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# a pixel-correct decoded frame back in ffmpeg.
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UPSTREAM_COMMIT=f0cd29a3400cb9af192842c3e2bcc90cc08c68ca
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PKGVER=0.1.0+r17+gf0cd29a
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PKGREL=3 # pkgrel=3 — corrected upstream commit SHA (was hallucinated) (Path A SONAME .so.62)
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HERE=$(dirname "$(readlink -f "$0")")
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# Reproducible build. 2026-05-18 23:00 UTC — Phase 8.13 close.
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export SOURCE_DATE_EPOCH=1779231600
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work=$(mktemp -d)
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trap "rm -rf $work" EXIT
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cd "$work"
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curl -sSLfo daedalus-v4l2.tar.gz \
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"https://git.reauktion.de/reauktion/daedalus-v4l2/archive/${UPSTREAM_COMMIT}.tar.gz"
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tar xzf daedalus-v4l2.tar.gz
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SRCDIR=daedalus-v4l2
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# Build daemon (CMake)
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cd "$SRCDIR/daemon"
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cmake -B build -G Ninja \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX=/usr
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cmake --build build
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# Build test tools (in-tree Makefile)
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cd "$work/$SRCDIR/tools"
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make
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# Stage
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ROOT="$work/pkgroot"
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mkdir -p "$ROOT/DEBIAN" \
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"$ROOT/usr/bin" \
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"$ROOT/usr/libexec/daedalus-v4l2" \
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"$ROOT/usr/include" \
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"$ROOT/usr/share/doc/daedalus-v4l2"
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install -m 755 "$work/$SRCDIR/daemon/build/daedalus_v4l2_daemon" \
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"$ROOT/usr/bin/daedalus_v4l2_daemon"
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install -m 755 "$work/$SRCDIR/tools/test_chardev_pingpong" \
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"$ROOT/usr/libexec/daedalus-v4l2/test_chardev_pingpong"
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install -m 755 "$work/$SRCDIR/tools/test_m2m_decode" \
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"$ROOT/usr/libexec/daedalus-v4l2/test_m2m_decode"
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install -m 755 "$work/$SRCDIR/tools/test_m2m_stream" \
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"$ROOT/usr/libexec/daedalus-v4l2/test_m2m_stream"
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install -m 644 "$work/$SRCDIR/include/daedalus_v4l2_proto.h" \
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"$ROOT/usr/include/daedalus_v4l2_proto.h"
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install -m 644 "$work/$SRCDIR/README.md" \
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"$ROOT/usr/share/doc/daedalus-v4l2/README.md"
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for d in "$work/$SRCDIR/docs/"*.md; do
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install -m 644 "$d" "$ROOT/usr/share/doc/daedalus-v4l2/$(basename "$d")"
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done
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install -Dm644 "$HERE/debian/copyright" "$ROOT/usr/share/doc/daedalus-v4l2/copyright"
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install -Dm644 "$HERE/debian/changelog" "$ROOT/usr/share/doc/daedalus-v4l2/changelog.Debian"
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gzip -9 -n "$ROOT/usr/share/doc/daedalus-v4l2/changelog.Debian"
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cat > "$ROOT/DEBIAN/control" <<EOF
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Package: daedalus-v4l2
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Version: ${PKGVER}-${PKGREL}
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Section: video
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Priority: optional
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Architecture: arm64
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Depends: ffmpeg-v4l2-request-fourier (>= 2:8.1+rfourier), libdrm2
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Recommends: daedalus-v4l2-dkms
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Maintainer: Markus Fritsche <mfritsche@reauktion.de>
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Homepage: https://git.reauktion.de/reauktion/daedalus-v4l2
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Description: Userspace daemon for the daedalus_v4l2 stateless decoder shim
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daedalus-v4l2 ships the userspace daemon that backs the daedalus_v4l2
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out-of-tree V4L2 kernel module on Raspberry Pi 5 / CM5. Together they
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expose /dev/videoNN + /dev/mediaNN as a V4L2 stateless decoder for
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VP9, AV1, and H.264 — actual decoding happens in this single-threaded
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daemon via dlopen'd FFmpeg, with decoded NV12 / P010 frames shipped
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back through dmabuf.
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.
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Consumed end-to-end by libva-v4l2-request-fourier (>= 1.0.0+r376) so
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that 'ffmpeg -hwaccel vaapi' against vp9_small.ivf produces a
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byte-exact NV12 frame.
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.
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The kernel module ships separately in daedalus-v4l2-dkms; install
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both to actually serve V4L2 clients.
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EOF
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DEB_OUT="daedalus-v4l2_${PKGVER}-${PKGREL}_arm64.deb"
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dpkg-deb --root-owner-group --build "$ROOT" "$HERE/$DEB_OUT"
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echo "built: $HERE/$DEB_OUT"
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