The libva-v4l2-request-fourier .deb shipped with the wrong VA-API
symbol export because the CI runner is Arch (libva 2.23 = VA-API
1.23) while the install target is Debian trixie (libva 2.22 = VA-API
1.22). At compile time, <va/va.h>'s VA_MAJOR/VA_MINOR macros are
baked into the driver's __vaDriverInit_<MAJOR>_<MINOR> symbol name.
trixie's libva runtime looks up __vaDriverInit_1_22, our driver only
exported __vaDriverInit_1_23, so dlsym() returned NULL and libva
fell back to its sentinel error "has no function __vaDriverInit_1_0".
Result: ffmpeg -hwaccel vaapi fails on startup, vainfo fails the
same way, on every Pi 5 / CM5 that installed the package.
The driver itself doesn't link libva.so (no NEEDED entry — confirmed
via readelf on higgs), so the only thing that matters is the symbol
NAME the compiler bakes in. Fix is small: in build-deb.sh, download
trixie's libva-dev / libva2 / libva-drm2 .deb from deb.debian.org,
extract to a sysroot, rewrite the .pc prefixes, and set
PKG_CONFIG_PATH so pkg-config returns trixie headers regardless of
what the runner has installed. The link step still resolves -lva
against the sysroot's libva.so.2, but the resulting .so has no
NEEDED entry for it.
Added a hard sanity check at the end of build-deb.sh: fail the build
if the produced .so doesn't export __vaDriverInit_1_22. This makes
future ABI-skew failures loud at CI time instead of silent install-
then-refuse-to-load on the target.
Tested on boltzmann (aarch64): sysroot build produces a .so exporting
__vaDriverInit_1_22 (verified via nm -D). Source unchanged from
c332d34; only the build env differs.
pkgver/upstream unchanged. PKGREL bumped 1 -> 2 (rebuild against
pinned trixie libva-dev) so apt picks up the new .deb on higgs.
This is the LIBVA-2 unblocker — the runtime-libva-bind failure was
masking whether the LIBVA-1 per-codec dispatch actually works on
higgs. Once -2 lands on packages.reauktion.de, apt upgrade on higgs
and the daedalus daemon log + rpi-hevc-dec dispatch can be validated
end-to-end.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
marfrit
a1ff6de652