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| author | Pengchong Jin <pengchong@google.com> | 2014-08-13 20:07:39 -0700 |
|---|---|---|
| committer | Pengchong Jin <pengchong@google.com> | 2014-08-15 16:14:20 -0700 |
| commit | eca93642e28102e5e30d6499f9661b89e8fdc27b (patch) | |
| tree | 775844a89c8924dc6a45fa9edd756c8477f135e6 /vp9/encoder/vp9_speed_features.h | |
| parent | 5b63c2797a50a6a007a9b20377b071cd0aa6d702 (diff) | |
| download | libvpx-eca93642e28102e5e30d6499f9661b89e8fdc27b.tar libvpx-eca93642e28102e5e30d6499f9661b89e8fdc27b.tar.gz libvpx-eca93642e28102e5e30d6499f9661b89e8fdc27b.tar.bz2 libvpx-eca93642e28102e5e30d6499f9661b89e8fdc27b.zip | |
Add a speed feature to give the tighter search range
Add a speed feature to give the tighter partition search
range. Before partition search, calculate the histogram
of the partition sizes of the left, above and previous
co-located blocks of the current block. If the variance of
observed partition sizes is small enough, adjust the search
range around the mean partition size, which will be tigher.
The feature is currently turned on at speed 2. Experiments on
sample youtube clips show on average the runtime is reduced
by 3-7%.
For hard stdhd clips:
park_joy_1080p @ 15000kbps: 509251 ms -> 491953 ms (3.3%)
pedestrian_area_1080p @ 2000kbps: 223941 ms -> 214226 ms (4.3%)
The PSNR performance is changed:
derf: -0.112%
yt: -0.099%
hd: -0.090%
stdhd:-0.102%
Change-Id: Ie205ec5325bf92ec5676c243e30ba9d0adca10f2
Diffstat (limited to 'vp9/encoder/vp9_speed_features.h')
| -rw-r--r-- | vp9/encoder/vp9_speed_features.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/vp9/encoder/vp9_speed_features.h b/vp9/encoder/vp9_speed_features.h index de731cee1..300b86822 100644 --- a/vp9/encoder/vp9_speed_features.h +++ b/vp9/encoder/vp9_speed_features.h @@ -63,7 +63,8 @@ typedef enum { typedef enum { NOT_IN_USE = 0, RELAXED_NEIGHBORING_MIN_MAX = 1, - STRICT_NEIGHBORING_MIN_MAX = 2 + CONSTRAIN_NEIGHBORING_MIN_MAX = 2, + STRICT_NEIGHBORING_MIN_MAX = 3 } AUTO_MIN_MAX_MODE; typedef enum { |