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
119 lines
4.9 KiB
Bash
119 lines
4.9 KiB
Bash
# Maintainer: Markus Fritsche <fritsche.markus@gmail.com>
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#
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# daedalus-v4l2 — userspace daemon + V4L2 m2m test tools.
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#
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# Pair to daedalus-v4l2-dkms (kernel module). Together they expose
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# /dev/videoNN + /dev/mediaNN as a V4L2 stateless decoder shim on Pi 5 /
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# CM5, decoding VP9 / AV1 / H.264 via dlopen'd FFmpeg in a single-
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# threaded daemon and shipping decoded NV12 / P010 back through dmabuf.
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# Consumed end-to-end by libva-v4l2-request-fourier (>= 1.0.0.r376) so
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# `ffmpeg -hwaccel vaapi` against vp9_small.ivf produces byte-exact NV12.
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#
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# Project: https://git.reauktion.de/reauktion/daedalus-v4l2
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# Sibling kernel package: daedalus-v4l2-dkms
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# Sibling consumer: libva-v4l2-request-fourier
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pkgname=daedalus-v4l2
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_upstreampkg=daedalus-v4l2
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# Pin the daedalus-v4l2 tip. 5d8b436 = revert of PRs #7 + #8 (the
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# parking design that broke libva's 1:1 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 to match — lock-step
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# install with daedalus-v4l2-dkms 0.1.0.r33.5d8b436 REQUIRED.
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# Proper H.264 reorder fix tracked separately at daedalus-v4l2#11.
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_commit=5d8b4369e58ab947d1c56b1f718293c57c6065b5
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# 0.1.0 (pre-1.0) + commit count + short sha. Bump the .Y on each
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# Phase 8.x close. pkgver() recomputes at build time.
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pkgver=0.1.0.r33.5d8b436
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pkgrel=1 # reset for new upstream pin (5d8b436 — revert parking design)
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pkgdesc="Userspace daemon for the daedalus-v4l2 V4L2 stateless decoder shim (VP9/AV1/H.264 on Pi 5 / CM5)"
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arch=('aarch64')
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url="https://git.reauktion.de/reauktion/daedalus-v4l2"
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license=('BSD-2-Clause' 'GPL-2.0-or-later')
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# Daemon dlopens libavformat.so.61 / libavcodec.so.61 / libavutil.so.59
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# at runtime (Option γ — see daemon/src/ffmpeg_loader.h). ffmpeg
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# provides those; we don't link them.
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depends=('ffmpeg' 'libdrm')
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# Headers from libav*-dev needed at compile time for type-safe function
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# pointer signatures; pkg-config locates them.
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makedepends=('cmake' 'ninja' 'pkgconf' 'git' 'ffmpeg')
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optdepends=('daedalus-v4l2-dkms: kernel module providing /dev/video0 + /dev/daedalus-v4l2'
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'libva-v4l2-request-fourier: VA-API consumer routing through this daemon')
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install="${pkgname}.install"
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source=("git+https://git.reauktion.de/reauktion/daedalus-v4l2.git#commit=${_commit}"
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"${pkgname}.install")
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sha256sums=('SKIP'
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'SKIP')
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pkgver() {
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cd "${srcdir}/${_upstreampkg}"
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printf '0.1.0.r%s.%s' \
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"$(git rev-list --count HEAD)" \
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"$(git rev-parse --short=7 HEAD)"
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}
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build() {
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cd "${srcdir}/${_upstreampkg}/daemon"
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cmake -B build -G Ninja \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX=/usr
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cmake --build build
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cd "${srcdir}/${_upstreampkg}/tools"
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make
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}
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package() {
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cd "${srcdir}/${_upstreampkg}"
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# Daemon binary
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install -Dm755 daemon/build/daedalus_v4l2_daemon \
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"${pkgdir}/usr/bin/daedalus_v4l2_daemon"
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# Test tools (under /usr/libexec to keep them out of the default PATH
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# — they're for verification, not daily use).
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install -Dm755 tools/test_chardev_pingpong \
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"${pkgdir}/usr/libexec/daedalus-v4l2/test_chardev_pingpong"
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install -Dm755 tools/test_m2m_decode \
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"${pkgdir}/usr/libexec/daedalus-v4l2/test_m2m_decode"
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install -Dm755 tools/test_m2m_stream \
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"${pkgdir}/usr/libexec/daedalus-v4l2/test_m2m_stream"
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# Shared wire-protocol header (kernel ↔ daemon); useful for
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# third-party clients of the chardev.
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install -Dm644 include/daedalus_v4l2_proto.h \
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"${pkgdir}/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 -Dm644 packaging/systemd/daedalus-v4l2.service \
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"${pkgdir}/usr/lib/systemd/system/daedalus-v4l2.service"
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install -Dm644 packaging/systemd/daedalus-v4l2.modules-load \
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"${pkgdir}/usr/lib/modules-load.d/daedalus-v4l2.conf"
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# Documentation
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install -Dm644 README.md \
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"${pkgdir}/usr/share/doc/${pkgname}/README.md"
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for d in docs/*.md; do
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install -Dm644 "$d" "${pkgdir}/usr/share/doc/${pkgname}/$(basename "$d")"
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done
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# Licenses: BSD-2-Clause for daemon/tools, GPL for the kernel proto
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# header; the SPDX headers in src/ are the canonical declaration but
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# ship a short note here for package-manager-driven license queries.
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install -dm755 "${pkgdir}/usr/share/licenses/${pkgname}"
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cat > "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE" <<'EOF'
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daedalus-v4l2 userspace components are BSD-2-Clause licensed.
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The shared kernel↔daemon wire protocol header
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(/usr/include/daedalus_v4l2_proto.h) is GPL-2.0-or-later WITH
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Linux-syscall-note for kernel-side compatibility. See SPDX
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headers on individual source files for the canonical
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per-file declaration.
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EOF
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}
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