vpx/vp9/encoder
paulwilkins f1ce050f44 Bug fix for second reference stats.
Immediately following a key frame the trailing second reference
error in the first pass stats will be based on a reference frame from
the prior key frame group and will thus usually be much larger.

This fix eliminates that effect (which typically triggers a short arf
group immediately after a key frame). It also changes the accounting
for the first frame in each new arf group.

This change gives large gains on a couple of clips that contain mid
sequence key frames (e.g. 6% on 1080P tennis). Overall there was
a net gain in PSNR and PSNR-HVS ~(0.05- 0.4%) and mixed results for
SSIM (+/- 0.2%).

Change-Id: I8e00538ac2c0b5c2e7e637903cac329ce5c2a375
2017-12-08 10:05:36 +00:00
..
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2017-11-30 10:27:34 -08:00
2017-08-21 09:49:04 -07:00
2016-08-02 16:47:11 -07:00
2017-11-08 10:41:04 +00:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2017-05-18 12:56:02 +01:00
2016-08-02 16:47:11 -07:00
2017-07-10 11:20:35 -07:00
2017-04-06 00:50:56 +00:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2017-11-08 10:41:04 +00:00
2017-11-08 10:41:04 +00:00
2017-09-08 15:10:53 +01:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2016-08-02 16:47:11 -07:00
2017-03-17 16:53:09 -07:00
2015-07-20 18:13:04 -07:00