diff options
| author | Martin Storsjö <martin@martin.st> | 2017-01-12 16:52:33 +0200 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2017-03-11 13:14:48 +0200 |
| commit | f0ecbb13cf1cf706a1350dad657219dc7b3c131e (patch) | |
| tree | cb74533c73c2f2426a33a7476ebc367a46a196ae /libavcodec/aarch64 | |
| parent | 148cc0bb890839bc2a9cda514c5e71acc39eb374 (diff) | |
| download | ffmpeg-f0ecbb13cf1cf706a1350dad657219dc7b3c131e.tar.gz | |
arm/aarch64: vp9lpf: Calculate !hev directly
Previously we first calculated hev, and then negated it.
Since we were able to schedule the negation in the middle
of another calculation, we don't see any gain in all cases.
Before: Cortex A7 A8 A9 A53 A53/AArch64
vp9_loop_filter_v_4_8_neon: 147.0 129.0 115.8 89.0 88.7
vp9_loop_filter_v_8_8_neon: 242.0 198.5 174.7 140.0 136.7
vp9_loop_filter_v_16_8_neon: 500.0 419.5 382.7 293.0 275.7
vp9_loop_filter_v_16_16_neon: 971.2 825.5 731.5 579.0 453.0
After:
vp9_loop_filter_v_4_8_neon: 143.0 127.7 114.8 88.0 87.7
vp9_loop_filter_v_8_8_neon: 241.0 197.2 173.7 140.0 136.7
vp9_loop_filter_v_16_8_neon: 497.0 419.5 379.7 293.0 275.7
vp9_loop_filter_v_16_16_neon: 965.2 818.7 731.4 579.0 452.0
This is cherrypicked from libav commit
e1f9de86f454861b69b199ad801adc2ec6c3b220.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/aarch64')
| -rw-r--r-- | libavcodec/aarch64/vp9lpf_neon.S | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/libavcodec/aarch64/vp9lpf_neon.S b/libavcodec/aarch64/vp9lpf_neon.S index 55e1964c47..7fe2c88f9e 100644 --- a/libavcodec/aarch64/vp9lpf_neon.S +++ b/libavcodec/aarch64/vp9lpf_neon.S @@ -292,7 +292,7 @@ .if \mix != 0 sxtl v1.8h, v1.8b .endif - cmhi v5\sz, v5\sz, v3\sz // hev + cmhs v5\sz, v3\sz, v5\sz // !hev .if \wd == 8 // If a 4/8 or 8/4 mix is used, clear the relevant half of v6 .if \mix != 0 @@ -306,11 +306,10 @@ .elseif \wd == 8 bic v4\sz, v4\sz, v6\sz // fm && !flat8in .endif - mvn v5\sz, v5\sz // !hev + and v5\sz, v5\sz, v4\sz // !hev && fm && !flat8in .if \wd == 16 and v7\sz, v7\sz, v6\sz // flat8out && flat8in && fm .endif - and v5\sz, v5\sz, v4\sz // !hev && fm && !flat8in mul_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp5\().8h, \tmp5\().8h, \sz // 3 * (q0 - p0) bic \tmp1\sz, \tmp1\sz, v5\sz // if (!hev) av_clip_int8 = 0 |