CI binary segfaulted on HEVC vaEndPicture even though
/etc/makepkg.conf has OPTIONS=(... !lto ...). Root cause: arch-meson's
wrapper hard-codes `-D b_lto=true` regardless of makepkg.conf, so
the binary still gets cross-function ICF (Identical Code Folding)
under -O2 + LTO.
HEVC is the only codec in the campaign that submits a per-frame chain
of 4 control structs (SPS + PPS + DECODE_PARAMS + SLICE_PARAMS); ICF
finds a near-duplicate per-codec helper across the codec dispatch and
merges them, then the wrong instance's local stack layout is invoked
on the HEVC path → SEGV. The other 4 codecs (H.264, VP8, VP9, MPEG-2)
submit fewer/simpler control structs and tolerate the folding by
accident.
Empirical confirmation from the issue body's binary bisection:
meson build (default debugoptimized) 485 KB HEVC ✓
arch-meson + --buildtype=release 145 KB HEVC ✓
arch-meson + release + -flto 76 KB HEVC SEGV
CI build (this package, 7ac934e-1) 133 KB HEVC SEGV
Fix: append `-Db_lto=false` to the arch-meson invocation.
pkgrel 1 -> 2.
Carries the fork from libva-multiplanar iter8 close (2026-05-06) to
fresnel-fourier iter38b (2026-05-14): multi-device probe so a single
libva session serves rkvdec (H.264 + HEVC + VP9) + hantro (MPEG-2 +
VP8) without LIBVA_V4L2_REQUEST_VIDEO_PATH overrides, plus the
MAX_PROFILES bounds-check fix from iter38b.
Required by the fresnel-fourier README's HW-decode stack (vainfo
exposes all 10 profiles in one session, byte-exact bench verified
across 5 codecs).
68 commits between the old pin (65969da3) and the new (7ac934e0).
pkgver() recomputes the rev count at build time; the static placeholder
is bumped from r280 to r348 to reflect the new pin.
Production-tip successor to the experimental libva-v4l2-request-ohm-gl-fix
(tarball + 18-patch stack, never published). Tracks the libva-multiplanar
campaign fork's git history directly via git+commit pin, so iteration
sweeps land in a clean linear log instead of a growing patch stack.
Pinned commit 65969da3 = libva-multiplanar iter8 close (last commit on
master before fresnel-fourier work began layering MPEG-2 rewrites on top
2026-05-08). Promote to a later pin only after a future iteration closes
cleanly.
Workflow job mirrors ffmpeg-v4l2-request-aarch64 (same fermi LXC runner,
same makepkg → sign → repo-add → rsync-to-nc.reauktion.de pattern), and
chains via needs: ffmpeg-v4l2-request-aarch64 to serialize marfrit.db
updates. nasm dropped from bootstrap (libva has no x264-style asm).
replaces=(libva-v4l2-request libva-v4l2-request-ohm-gl-fix) covers both
stock Arch and locally-installed predecessor copies; predecessor was
never published so no marfrit.db collision.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
claude-noether
test0r