claude-noether
34972ae9c1
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
185 lines
6.8 KiB
Bash
Executable File
185 lines
6.8 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. 5d8b436 reverts PRs #7 + #8 (the
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# parking design that broke libva's 1:1 CAPTURE-buffer contract; see
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# daedalus-v4l2#9 + #10). Tree is content-equivalent to f0d4186
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# plus PR #4 (DECODE_MODE / START_CODE menu controls — cosmetic
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# warning fix). PROTO_VERSION drops 1 → 0; lock-step install with
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# daedalus-v4l2-dkms 0.1.0+r33+g5d8b436 REQUIRED. Proper H.264
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# reorder fix tracked separately at daedalus-v4l2#11.
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UPSTREAM_COMMIT=5d8b4369e58ab947d1c56b1f718293c57c6065b5
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PKGVER=0.1.0+r33+g5d8b436
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PKGREL=1 # reset for new upstream pin (5d8b436 — revert parking design)
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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 --connect-timeout 10 --max-time 600 --retry 3 --retry-delay 5 -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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"$ROOT/lib/systemd/system" \
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"$ROOT/usr/lib/modules-load.d"
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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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"$ROOT/usr/include/daedalus_v4l2_proto.h"
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# systemd unit + module autoload — without these the daemon never
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# starts and the libva/VAAPI consumer's REQ_DECODE has nobody on
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# the other end of /dev/daedalus-v4l2.
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install -m 644 "$work/$SRCDIR/packaging/systemd/daedalus-v4l2.service" \
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"$ROOT/lib/systemd/system/daedalus-v4l2.service"
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install -m 644 "$work/$SRCDIR/packaging/systemd/daedalus-v4l2.modules-load" \
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"$ROOT/usr/lib/modules-load.d/daedalus-v4l2.conf"
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install -m 644 "$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 "$ROOT/usr/share/doc/daedalus-v4l2/changelog.Debian"
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# DEBIAN/postinst — enable service + reload modules-load.d so the
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# kernel module loads now if daedalus-v4l2-dkms is also installed.
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# Does NOT auto-start the service — that requires /dev/daedalus-v4l2
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# to already exist (the ConditionPathExists= in the .service file)
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# which may not be true on the very first install before the user
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# reboots or manually modprobes. Operator decides when to start.
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cat > "$ROOT/DEBIAN/postinst" <<'POSTINST'
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#!/bin/sh
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set -e
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if [ "$1" = "configure" ]; then
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# Reload systemd so the new unit file is visible.
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if command -v systemctl >/dev/null 2>&1; then
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systemctl daemon-reload >/dev/null 2>&1 || true
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systemctl enable daedalus-v4l2.service >/dev/null 2>&1 || true
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fi
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# Trigger /usr/lib/modules-load.d/daedalus-v4l2.conf without a
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# reboot. Harmless if the module is already loaded; logs to
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# journal if it can't load (most common cause: dkms hasn't built
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# the module yet for the running kernel — see daedalus-v4l2-dkms
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# postinst for the loud-warning path).
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if command -v systemd-modules-load >/dev/null 2>&1; then
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systemd-modules-load >/dev/null 2>&1 || true
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fi
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# Auto-start if /dev/daedalus-v4l2 came up (i.e. module loaded
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# successfully). ConditionPathExists in the unit file means
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# `systemctl start` is a no-op if the device isn't there yet —
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# avoids spurious failures during apt install on a host where
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# daedalus-v4l2-dkms hasn't built yet.
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if [ -e /dev/daedalus-v4l2 ] && command -v systemctl >/dev/null 2>&1; then
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systemctl start daedalus-v4l2.service >/dev/null 2>&1 || true
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fi
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fi
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#DEBHELPER#
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POSTINST
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chmod 755 "$ROOT/DEBIAN/postinst"
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cat > "$ROOT/DEBIAN/prerm" <<'PRERM'
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#!/bin/sh
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set -e
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if [ "$1" = "remove" ] && command -v systemctl >/dev/null 2>&1; then
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systemctl stop daedalus-v4l2.service >/dev/null 2>&1 || true
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systemctl disable daedalus-v4l2.service >/dev/null 2>&1 || true
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fi
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#DEBHELPER#
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PRERM
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chmod 755 "$ROOT/DEBIAN/prerm"
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cat > "$ROOT/DEBIAN/postrm" <<'POSTRM'
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#!/bin/sh
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set -e
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if command -v systemctl >/dev/null 2>&1; then
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systemctl daemon-reload >/dev/null 2>&1 || true
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fi
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#DEBHELPER#
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POSTRM
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chmod 755 "$ROOT/DEBIAN/postrm"
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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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