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Committer:
Fiona Glaser
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Author(s):
Lamont Alston
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Date:
2010-06-25 07:42:52 UTC
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Revision ID:
git-v1:d020c4274edab45314c6bcf324d05f21dd13a93c
Open-GOP support
Allows B-frames immediately prior to keyframes (in display order).
This helps reduce keyframe popping and improve compression with short keyframe intervals.
Due to a staggering display of braindamage in the Blu-ray spec, two open-GOP modes are available.
The two modes calculate keyframe interval differently: one based on coded distance and one based on display distance.
The latter is superior compression-wise, but for no comprehensible reason, Blu-ray requires the former if open-GOP is used.