[x265] [PATCH] slicetype: increase baseline bframe bias by 10%

Derek Buitenhuis derek.buitenhuis at gmail.com
Sat Sep 14 21:36:52 CEST 2013


On 9/14/2013 5:37 AM, Steve Borho wrote:
> # HG changeset patch
> # User Steve Borho <steve at borho.org>
> # Date 1379133436 18000
> #      Fri Sep 13 23:37:16 2013 -0500
> # Node ID 2555acbc97367b5ea2dcfd921b3ec577e9f5e4f0
> # Parent  9c5a74cfacca9e0107c3d5d15521e2000d7bcdbc
> slicetype: increase baseline bframe bias by 10%
> 
> Our estimateFrameCost() function is not yet checking bidir candidates (because
> bidir search in the main encoder needs to be replaced first) and since B frame
> estimates cannot use intra modes either this tends to make B frame scores
> relatively higher than what x264 finds.  So our default bias needs to be a bit
> higher in order for the lookahead to select B paths.

OK.

- Derek


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