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marfrit-packages/arch/daedalus-v4l2/PKGBUILD
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marfrit b16a3f1a77 daedalus-v4l2{,-dkms}: 481279c -> 3dd0eb0 (DAEMON-PPS close)
Upstream PR #1 landed daemon-side synthesis of H.264 SPS/PPS NAL
units from the V4L2 stateless control structs.  This bumps the
package pin so both the userspace daemon and the kernel module
pick up the change in lockstep (wire protocol grew a new
DAEDALUS_REQ_FLAG_H264_META bit + struct daedalus_h264_meta —
kernel and daemon MUST match).

Effect on Pi 5 / CM5 hosts (higgs): ffmpeg -hwaccel vaapi against
H.264 sources will actually decode through the daedalus daemon
instead of failing with "non-existing PPS 0 referenced".

Both arch + debian packages: pkgver 0.1.0.r20.3dd0eb0 (count from
git rev-list), pkgrel reset to 1 (new upstream pin).

VP9 / AV1 paths unchanged.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 18:53:04 +02:00

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# Maintainer: Markus Fritsche <fritsche.markus@gmail.com>
#
# daedalus-v4l2 — userspace daemon + V4L2 m2m test tools.
#
# Pair to daedalus-v4l2-dkms (kernel module). Together they expose
# /dev/videoNN + /dev/mediaNN as a V4L2 stateless decoder shim on Pi 5 /
# CM5, decoding VP9 / AV1 / H.264 via dlopen'd FFmpeg in a single-
# threaded daemon and shipping decoded NV12 / P010 back through dmabuf.
# Consumed end-to-end by libva-v4l2-request-fourier (>= 1.0.0.r376) so
# `ffmpeg -hwaccel vaapi` against vp9_small.ivf produces byte-exact NV12.
#
# Project: https://git.reauktion.de/reauktion/daedalus-v4l2
# Sibling kernel package: daedalus-v4l2-dkms
# Sibling consumer: libva-v4l2-request-fourier
pkgname=daedalus-v4l2
_upstreampkg=daedalus-v4l2
# Pin the daedalus-v4l2 tip. 481279c = "Phase 8.13: byte-exact end-to-
# end via libva (consumer target hit)" — first commit where the full
# ffmpeg -hwaccel vaapi → libva → /dev/video0 → daemon path lands a
# pixel-correct decoded frame back in ffmpeg. Promote to a later pin
# only after a future phase closes cleanly.
_commit=3dd0eb070a75893f78368ce819b9e9ebf08c124d
# 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.r20.3dd0eb0
pkgrel=1 # reset for new upstream pin (3dd0eb0 — DAEMON-PPS H.264 SPS/PPS NAL synth)
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"
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')
# Headers from libav*-dev needed at compile time for type-safe function
# pointer signatures; pkg-config locates them.
makedepends=('cmake' 'ninja' 'pkgconf' 'git' 'ffmpeg')
optdepends=('daedalus-v4l2-dkms: kernel module providing /dev/video0 + /dev/daedalus-v4l2'
'libva-v4l2-request-fourier: VA-API consumer routing through this daemon')
install="${pkgname}.install"
source=("git+https://git.reauktion.de/reauktion/daedalus-v4l2.git#commit=${_commit}"
"${pkgname}.install")
sha256sums=('SKIP'
'SKIP')
pkgver() {
cd "${srcdir}/${_upstreampkg}"
printf '0.1.0.r%s.%s' \
"$(git rev-list --count HEAD)" \
"$(git rev-parse --short=7 HEAD)"
}
build() {
cd "${srcdir}/${_upstreampkg}/daemon"
cmake -B build -G Ninja \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX=/usr
cmake --build build
cd "${srcdir}/${_upstreampkg}/tools"
make
}
package() {
cd "${srcdir}/${_upstreampkg}"
# Daemon binary
install -Dm755 daemon/build/daedalus_v4l2_daemon \
"${pkgdir}/usr/bin/daedalus_v4l2_daemon"
# Test tools (under /usr/libexec to keep them out of the default PATH
# — they're for verification, not daily use).
install -Dm755 tools/test_chardev_pingpong \
"${pkgdir}/usr/libexec/daedalus-v4l2/test_chardev_pingpong"
install -Dm755 tools/test_m2m_decode \
"${pkgdir}/usr/libexec/daedalus-v4l2/test_m2m_decode"
install -Dm755 tools/test_m2m_stream \
"${pkgdir}/usr/libexec/daedalus-v4l2/test_m2m_stream"
# Shared wire-protocol header (kernel ↔ daemon); useful for
# third-party clients of the chardev.
install -Dm644 include/daedalus_v4l2_proto.h \
"${pkgdir}/usr/include/daedalus_v4l2_proto.h"
# systemd unit + module autoload — without these the daemon never
# starts and the libva/VAAPI consumer's REQ_DECODE has nobody on
# the other end of /dev/daedalus-v4l2.
install -Dm644 packaging/systemd/daedalus-v4l2.service \
"${pkgdir}/usr/lib/systemd/system/daedalus-v4l2.service"
install -Dm644 packaging/systemd/daedalus-v4l2.modules-load \
"${pkgdir}/usr/lib/modules-load.d/daedalus-v4l2.conf"
# Documentation
install -Dm644 README.md \
"${pkgdir}/usr/share/doc/${pkgname}/README.md"
for d in docs/*.md; do
install -Dm644 "$d" "${pkgdir}/usr/share/doc/${pkgname}/$(basename "$d")"
done
# Licenses: BSD-2-Clause for daemon/tools, GPL for the kernel proto
# header; the SPDX headers in src/ are the canonical declaration but
# ship a short note here for package-manager-driven license queries.
install -dm755 "${pkgdir}/usr/share/licenses/${pkgname}"
cat > "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE" <<'EOF'
daedalus-v4l2 userspace components are BSD-2-Clause licensed.
The shared kernel↔daemon wire protocol header
(/usr/include/daedalus_v4l2_proto.h) is GPL-2.0-or-later WITH
Linux-syscall-note for kernel-side compatibility. See SPDX
headers on individual source files for the canonical
per-file declaration.
EOF
}