Disable deblocking in partition search for speed >= 3 - #5219
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leolzhao merged 1 commit intoAug 6, 2026
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LGTM for now.
I will investigate the reason. Should not have loss.
The in-partition-search deblock filter improves RD at speed 1-2 but degrades it at speed 3-4, so disable it for speed >= 3 (speed 5-6 were already disabled). Anchor: 7837c40 Test condition: CTC, RA, 33 frames Effect of disabling, by speed (wAvg BD-rate): +-------+-------+-------+-------+------+ | Speed | A1 | A2 | wAvg | Enc% | +-------+-------+-------+-------+------+ | 1 | 0.54 | 0.38 | 0.28 | 98.9 | | 2 | 0.36 | 0.35 | 0.23 | 98.9 | | 3 | 0.00 | -0.07 | -0.08 | 99.6 | | 4 | -0.05 | -0.19 | -0.21 |100.6 | +-------+-------+-------+-------+------+ STATS_CHANGED
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The in-partition-search deblock filter improves RD at speed 1-2 but degrades it at speed 3-4, so disable it for speed >= 3 (speed 5-6 were already disabled).
Anchor: 7837c40
Test condition: CTC, RA, 33 frames
Effect of disabling, by speed (wAvg BD-rate):
STATS_CHANGED