enricobuehler 79508b2666 fix(capture/mutter): drop stale re-delivered frames (the GNOME flash) ...

Instrumented worker-3: even on the ordered FORCE_SHM download path, Mutter
re-delivers COMPLETE OLD pool buffers — 655 frames in a 15 s session whose content
exactly matched an earlier frame (not damage-incremental; full old frames, in
runs, ~45% during motion). NVIDIA gives no fence to prevent it, so the producer
delivery can't be made clean from our side.

Detect it and drop it: hash a spatial sample of each captured frame; a frame whose
content equals an EARLIER distinct frame (vs the current one, whose duplicates pass
through) is a stale re-delivery — skip it so the encoder never emits the flash
(try_latest re-sends the last good frame; brief hold instead of a backward jump).
Runs on the CPU/SHM path (where Mutter+NVIDIA capture lives); never triggers on
static content or non-Mutter compositors (no reverts). PUNKTFUNK_KEEP_STALE=1
disables it for A/B.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-13 10:46:27 +00:00

..

punktfunk-client-linux

feat(client-linux): VAAPI hardware decode — zero-copy dmabuf into GraphicsOffload

2026-06-12 23:26:59 +00:00

punktfunk-client-rs

fix(client-linux): absolute mouse was dropped — pack the surface size in flags

2026-06-12 20:50:53 +00:00

punktfunk-core

fix(abi): exclude internal Apple recvmsg_x FFI from the C header

2026-06-13 09:44:03 +00:00

punktfunk-host

fix(capture/mutter): drop stale re-delivered frames (the GNOME flash)

2026-06-13 10:46:27 +00:00