Files
punktfunk/ci/fedora-rpm.Dockerfile
enricobuehler 5c05246098 feat: M10 — FFmpeg is gone from the client
cargo tree -p punktfunk-client-session finds no ffmpeg. The host still does,
which is the whole point: pf-encode keeps libavcodec unconditionally and no
host workflow, packaging script or licence file was touched.

Deleted: crates/pf-ffvk, video_vulkan.rs, video_vaapi.rs, video_libav.rs, the
libavcodec half of video_d3d11.rs, the av_log machinery, ffmpeg::codec::Id as
the decoder's vocabulary (the quic CODEC_* wire constants now serve, which is
why the evidence table was keyed on them), DecodedImage::VkFrame and ::Dmabuf,
the presenter's AVVkFrame lane, and the ffmpeg-fallback feature with
everything behind it. DrmFrameGuard collapses from an enum to a newtype, which
removes an unsafe impl Send. Roughly 25,000 lines.

Then the CI, packaging, licensing and docs work the plan's §6 lists: the
Windows workflows lose FFMPEG_DIR, PF_FFVK_VULKAN_INCLUDE and their PATH
prepend; the MSIX loses its DLL wildcard; the client .deb stops emitting libav
sonames on its own because depends come from dpkg-shlibdeps; arch, flatpak and
nix drop the dependency; and the README's "FFmpeg 7 or 8" contract narrows to
the host.

Three defects reached users' machines in the first cut, and none was in the
deletion itself.

All three desktop Settings UIs offer vulkan, vaapi and d3d11va as stored
decoder values, so those strings sit in shipped settings files today. Refusing
them by name — which is the correct rule for a stale pin — would have bricked
every upgraded client whose owner ever touched that dropdown. They now migrate
onto the native rung for the same hardware family, at decoder construction AND
at each dialog's lookup, because a legacy value that matches no preset
displays as "Automatic" and silently rewrites the user's preference on the
next save.

M9's evidence filter was deleted on the argument that with no libavcodec twin
below, barring an unproven rung removes hardware decode rather than moving
down one rung. That is true on Windows and false on Linux for Intel and every
unknown vendor id, where prefer_vulkan_first is false and the order is
native-vaapi → native-vk: a rung that has decoded nothing anywhere sitting
above one that is 250/250 on three drivers. Every Intel Linux desktop would
have moved from libavcodec VAAPI, shipping for years, onto pf-vaadec by
default — and a rung that constructs and then produces wrong pixels leaves
only by the error-streak demotion, which this codebase already documents as
not tripping on the B580's strobing. The filter is restored as a narrow, pure,
testable rule: an unproven rung yields to a proven one, and to nothing else.
Windows deliberately passes no rung below, because that vendor family is the
one with a measured wrong-pixel report against Vulkan decode, and trading no
evidence for evidence of corruption is the wrong direction.

And the notices still said FFmpeg was bundled. The root file is what both
desktop clients include_str! and what the MSIX ships, three lines under the
new card saying no FFmpeg is bundled; Apple's Acknowledgements said it too, on
iOS, tvOS and macOS. The generator now emits four per-client files scoped by
transitive closure — 0 FFmpeg mentions in each, verified — while the root file
keeps it for the host. That also ends the standing false attribution of
ffmpeg-next, GTK4, windows-rs and the NVENC SDK to an iPhone.

Windows has no reachable box, so it was compiled instead: a cross clippy at
-D warnings on x86_64 and aarch64-pc-windows-msvc with the C toolchain stubbed
so build scripts run without linking. That gate immediately caught an
include_str! path one directory too deep, which nothing else could have.

Gates: container clippy -D warnings, 160 tests, workspace check, both Windows
targets clean, client ffmpeg count 0 and host 2. The four decode crates are
untouched, so the hardware rungs' 250/250 stands.

⚠ Owed and unrun: no GPU has executed any of this milestone. M8's on-glass
software check, M7's D3D11 and VAAPI AV1 hardware legs, and M9's field bake
all still want hardware, and the bake window and criteria remain the user's.
2026-08-07 08:58:47 +02:00

79 lines
5.0 KiB
Docker

# CI builder for the punktfunk RPM. The Fedora version is parameterized so one Dockerfile
# serves every target whose ffmpeg soname must match: Fedora 43 == Bazzite's base (group
# "bazzite"), Fedora 44 == the Fedora KDE spin (group "fedora-44"). The RPM's auto-generated
# library Requires (e.g. libavcodec.so.NN) pin to exactly what the chosen base — and thus the
# target — ships. Used by .gitea/workflows/rpm.yml; built+pushed by .gitea/workflows/docker.yml.
#
# docker build --build-arg FEDORA_VERSION=43 -f ci/fedora-rpm.Dockerfile -t punktfunk-fedora-rpm ci
# docker build --build-arg FEDORA_VERSION=44 -f ci/fedora-rpm.Dockerfile -t punktfunk-fedora44-rpm ci
#
# Mirrors ci/rust-ci.Dockerfile (the Ubuntu workspace builder) for the rpmbuild side.
ARG FEDORA_VERSION=43
FROM fedora:${FEDORA_VERSION}
# RPM Fusion (free + nonfree) provides the NVENC-capable ffmpeg-devel the host links against.
RUN dnf -y install \
"https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm" \
"https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm" \
&& dnf -y install \
# rpmbuild + source-tarball tooling; nodejs runs the Gitea Actions JS (checkout/cache) only
# — the punktfunk-web console builds AND runs on bun (installed below); unzip is for the bun
# installer.
rpm-build rpmdevtools systemd-rpm-macros git tar gzip nodejs unzip \
# build toolchain + bindgen
gcc gcc-c++ clang clang-devel cmake nasm pkgconf-pkg-config curl ca-certificates \
# ffmpeg (NVENC), capture/audio/display link deps
ffmpeg-devel pipewire-devel wayland-devel libxkbcommon-devel opus-devel \
mesa-libGL-devel mesa-libgbm-devel \
# punktfunk-client link deps (GTK4 shell + SDL3 gamepads)
gtk4-devel libadwaita-devel SDL3-devel \
# No vulkan-headers: nothing in the workspace compiles against the system Vulkan headers
# (pyrowave-sys bindgens its own vendored copy; host and client both reach Vulkan through
# ash, which dlopens the loader), and packaging/rpm/punktfunk.spec BuildRequires none.
# rpm.yml's HDR gamescope leg needs them and pulls them with `dnf builddep gamescope`.
&& dnf clean all
# bun — both the BUILD tool and the RUNTIME for the punktfunk-web console (`bun run build` -> the
# Nitro `bun`-preset .output, served by `Bun.serve` with TLS — HTTP/1.1 over TLS). The
# RPM vendors THIS bun binary. Not in Fedora repos; install the official standalone binary to a
# system PATH dir so the rpmbuild `%build`/`%install` (run as any uid) find it.
RUN curl -fsSL https://bun.sh/install | bash \
&& install -m0755 /root/.bun/bin/bun /usr/local/bin/bun \
&& bun --version
# libcuda link stub — the zerocopy path links a fixed set of cuXxx driver symbols, but CI has
# no GPU and never RUNS CUDA. Rather than drag in the NVIDIA userspace stack, synthesize a stub
# libcuda.so.1 that just defines those symbols (the SAME approach the Ubuntu image takes with the
# real driver lib, minus the driver). On Bazzite the real driver provides libcuda.so.1 at runtime.
# The symbol list is `nm -D --undefined-only` of the built host binary; a new cu* call would fail
# the link with a clear "undefined reference", flagging this list to update.
RUN set -eux; : > /tmp/cuda_stub.c; \
for s in cuCtxCreate_v2 cuCtxSetCurrent cuCtxSynchronize cuDestroyExternalMemory \
cuDeviceGet cuExternalMemoryGetMappedBuffer cuGraphicsGLRegisterImage \
cuGraphicsMapResources cuGraphicsSubResourceGetMappedArray cuGraphicsUnmapResources \
cuGraphicsUnregisterResource cuImportExternalMemory cuInit cuMemAllocPitch_v2 \
cuMemcpy2D_v2 cuMemFree_v2; do \
echo "int $s(void){return 0;}" >> /tmp/cuda_stub.c; \
done; \
gcc -shared -fPIC -Wl,-soname,libcuda.so.1 -o /usr/lib64/libcuda.so.1 /tmp/cuda_stub.c; \
ln -sf libcuda.so.1 /usr/lib64/libcuda.so; \
rm -f /tmp/cuda_stub.c; ldconfig; test -e /usr/lib64/libcuda.so
# Rustup (not Fedora's packaged rust) so rust-toolchain.toml's pinned channel resolves, matching
# the Ubuntu builder. Shared location so jobs running as any uid can use it.
ENV RUSTUP_HOME=/usr/local/rustup \
CARGO_HOME=/usr/local/cargo \
PATH=/usr/local/cargo/bin:$PATH
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
| sh -s -- -y --no-modify-path --profile minimal \
&& chmod -R a+w "$RUSTUP_HOME" "$CARGO_HOME" \
&& rustc --version && cargo --version
# Shared compile cache: jobs set RUSTC_WRAPPER=sccache (backend = RustFS S3 on the LAN,
# see .gitea/workflows — the env lives there so dev use of this image stays uncached).
# musl build: one static binary serves the Ubuntu and Fedora images alike.
ARG SCCACHE_VERSION=0.10.0
RUN curl -fsSL "https://github.com/mozilla/sccache/releases/download/v${SCCACHE_VERSION}/sccache-v${SCCACHE_VERSION}-x86_64-unknown-linux-musl.tar.gz" \
| tar -xz --wildcards --strip-components=1 -C /usr/local/bin '*/sccache' \
&& sccache --version