forked from marfrit/marfrit-packages
test0r
052a692668
Adds a brute-force fallback to v4l2request_open_decoder() that enumerates /dev/media[0..15] and /dev/video[0..63] directly when udev_enumerate_scan_devices() returns an error. The fallback uses absolute paths only (no fd-relative openat), which is what makes it work inside firefox's RDD seccomp+broker sandbox where Mozilla's OpenAtTrap rejects fd-relative paths used by systemd's chase() symlink resolver. Same approach Chromium uses in media/gpu/v4l2/stateless/ on ChromeOS, where the sandbox similarly forbids libudev's chase pattern. No regression: the libudev path runs first and the brute-force path only activates on its failure. AV_LOG_INFO line announces the fallback so it's visible in MOZ_LOG=FFmpegLib:5. Validated on RK3399 / Pinebook Pro / rkvdec: libudev probe failed (-2), falling back to brute-force /dev/media* Using V4L2 media driver rkvdec (brute-force) for S264 Reinit context to 1920x1088, pix_fmt: drm_prime RDD CPU = 4.9% Bumps pkgrel=2. Worth submitting to Kwiboo's fork upstream. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
146 lines
3.4 KiB
Bash
146 lines
3.4 KiB
Bash
# Maintainer: Markus Fritsche <mfritsche@reauktion.de>
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#
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# FFmpeg + V4L2-Request hwaccel (stateless video decode on Rockchip,
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# Allwinner, etc) for the Fourier umbrella. Tracks Kwiboo's long-running
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# rebase of Jernej Škrabec's v4l2-request patchset onto ffmpeg release
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# tags. Pins the branch tip to a known commit for reproducible CI builds;
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# bump _commit when upstream picks up a fix we want.
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#
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# Why this fork instead of AUR ffmpeg-v4l2-request-git:
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# - AUR is pinned to 6.1.1 with epoch=2, which is OLDER than Arch's
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# stock 2:8.1-3 → installing it downgrades system ffmpeg.
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# - AUR pulls X11/AMF/CUDA/FireWire/AviSynth/OpenMPT/Bluray — irrelevant
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# for a Wayland + ARM + video-decode fleet.
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# - AUR uses #branch=..., no commit pin. CI artifacts are non-reproducible.
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#
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# Encoders (libx264/libx265/libvpx/libdav1d) kept per Fourier fleet policy.
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# X11, AMF, CUDA, FireWire, AviSynth, OpenMPT, Bluray, OpenMAX, JPEG-XL,
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# Theora, XVid, rsvg, soxr, ssh, vidstab, modplug, SDL2, Vulkan, JACK, GSM,
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# Speex dropped — not needed on the Fourier fleet. (No SDL2 means no
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# `ffplay` binary; mpv covers interactive playback.)
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pkgname=ffmpeg-v4l2-request-git
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_srcname=FFmpeg
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_version='8.1'
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_commit='b57fbbe50c9b2656fad86a1a7eeabfd2b2a50935' # v4l2-request-n8.1 tip 2026-04-24
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pkgver=8.1.r123329.b57fbbe
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pkgrel=2
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epoch=2
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pkgdesc='FFmpeg with V4L2 Request API hwaccel (Rockchip / Allwinner stateless decode)'
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arch=('aarch64')
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url='https://github.com/Kwiboo/FFmpeg'
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license=('GPL-3.0-or-later')
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depends=(
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alsa-lib
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bzip2
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fontconfig
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fribidi
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gmp
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gnutls
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lame
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libass.so
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libdav1d.so
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libdrm
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libfreetype.so
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libgl
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libpulse
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libva.so
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libva-drm.so
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libvorbis.so
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libvorbisenc.so
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libvpx.so
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libwebp
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libx264.so
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libx265.so
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libxml2
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opus
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v4l-utils
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xz
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zlib
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)
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makedepends=(
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git
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linux-api-headers
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mesa
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nasm
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)
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provides=(
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libavcodec.so
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libavdevice.so
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libavfilter.so
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libavformat.so
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libavutil.so
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libpostproc.so
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libswresample.so
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libswscale.so
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ffmpeg
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)
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conflicts=(ffmpeg)
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source=("git+https://github.com/Kwiboo/FFmpeg.git#commit=${_commit}"
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'0001-libudev-bypass-fallback.patch')
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sha256sums=('SKIP' 'SKIP')
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pkgver() {
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cd "${_srcname}"
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printf '%s.r%s.%s' "${_version}" \
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"$(git rev-list --count HEAD)" \
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"$(git rev-parse --short=7 HEAD)"
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}
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prepare() {
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cd "${_srcname}"
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patch -Np1 -i "${srcdir}/0001-libudev-bypass-fallback.patch"
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}
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build() {
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cd "${_srcname}"
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./configure \
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--prefix=/usr \
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--disable-debug \
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--disable-static \
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--disable-doc \
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--disable-stripping \
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--enable-shared \
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--enable-gpl \
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--enable-version3 \
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--enable-pic \
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--enable-neon \
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--arch=aarch64 \
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\
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--enable-libdrm \
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--enable-libv4l2 \
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--enable-libudev \
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--enable-v4l2-request \
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--enable-v4l2_m2m \
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--enable-vaapi \
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--enable-opengl \
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\
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--enable-gnutls \
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--enable-fontconfig \
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--enable-libass \
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--enable-libfreetype \
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--enable-libfribidi \
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--enable-libxml2 \
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--enable-libpulse \
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--enable-libdav1d \
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--enable-libopus \
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--enable-libvorbis \
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--enable-libmp3lame \
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--enable-libvpx \
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--enable-libx264 \
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--enable-libx265 \
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--enable-libwebp \
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\
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--host-cflags='-fPIC'
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make
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make tools/qt-faststart
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}
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package() {
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cd "${_srcname}"
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make DESTDIR="${pkgdir}" install
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install -Dm755 tools/qt-faststart "${pkgdir}/usr/bin/qt-faststart"
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}
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