One pass measured 11 attempts rejected purely on the window mean (0.9655-0.9795)
while accepted encodes had worse frame minima (0.33-0.90): the bar was splitting a
continuum, not separating defects. 0718 马斯克原理 failed with min 0.887 and 0.00% of
frames below 0.85. Those files already play (HEVC hvc1 + AAC) and a re-do exists only
to reclaim an old setting's bloat; reaching a 0.98 mean costs more than the source's
own bitrate, which the size ceiling forbids - so the strict bar stranded them with
their bloat while burning an encode every pass.
SSIM_MEAN_MIN_REDO = 0.975 now applies only when the run is re-doing a file that is
genuinely playable (HEVC hvc1 AND aac) from the snapshot original. The frame-share
test (>1% of frames below 0.85) is unchanged and is what catches a real defect.
Verified on ONE file before the tiers were restarted: 0321 随他们去 (rejected last
pass at mean 0.9789) -> ok, mean 0.9786, min 0.5092 with 5 of 1500 frames below 0.85
(fades), 633 MB -> 418 MB installed, live byte count == the encoded output.
The x265/nvenc tiers launched as Hermes background processes were killed
mid-encode at 10:37 when the user's session was closed, so persist_on_release
is not enough here: run/relaunch_tiers.sh starts them orphaned from Hermes
(Start-Process) with a retry loop, which is why they are no longer tracked and
must be stopped by PID only.
STATE.md now carries the progress table (242/589 done, 347 pending: 169 x265 +
174 nvenc + 4 copy), the reason a full `--tier copy` pass must NOT be run (its
only skip test is "already HEVC", which a copy output never satisfies - it
would redo all 193), and the four new weekly episodes handled one file at a
time.
STATE.md carries what the next session needs: the two commands that keep the tiers running, where
the logs/stage/locks/ledger live, the eight bugs this round produced (each with the measurement that
proved it), and the open items. The skill's body now keeps only the load-bearing rules; every
measured case moved to references/pitfalls.md, so the always-loaded part stays readable.
hoelee