更新 x264 rev771测试

更新的果然太疯狂了……瞬间就771了,再补充测试一下,方法和767的相同。

–qp 18 –ref 3  –mixed-refs –no-fast-pskip –bframes 3 –b-pyramid –b-rdo –bime –weightb –subme 6 –trellis 1 –analyse all  –8x8dct –me umh –threads 3 –thread-input –progress –no-dct-decimate –no-psnr –no-ssim –output “test.mp4” “test.avs”

 

avis [info]: 864×480 @ 23.98 fps (1724 frames)
x264 [info]: using cpu capabilities: MMX MMXEXT SSE SSE2 SSE3 SSSE3 Cache64
mp4 [info]: initial delay 2002 (scale 24000)
x264 [info]: slice I:20    Avg QP:15.00  size: 46094:00:00
x264 [info]: slice P:656   Avg QP:18.00  size:  9762
x264 [info]: slice B:1048  Avg QP:19.71  size:  1407
x264 [info]: mb I  I16..4: 40.5% 22.9% 36.6%
x264 [info]: mb P  I16..4:  7.9%  3.5%  2.9%  P16..4: 47.5%  8.4%  4.9%  0.6%  0.4%    skip:23.9%
x264 [info]: mb B  I16..4:  0.1%  0.0%  0.1%  B16..8: 19.9%  0.6%  1.1%  direct: 0.9%  skip:77.3%
x264 [info]: 8×8 transform  intra:24.1%  inter:59.1%
x264 [info]: ref P  73.2% 16.2% 10.6%
x264 [info]: ref B  89.3% 10.7%
x264 [info]: kb/s:979.1

encoded 1724 frames, 24.05 fps, 979.23 kb/s

 


 

 

–qp 18 –ref 3   –mixed-refs –no-fast-pskip –bframes 3 –b-pyramid –b-rdo –bime –weightb –subme 7 –trellis 2 –analyse all  –8x8dct –me umh –threads 3 –thread-input –progress –no-dct-decimate –no-psnr –no-ssim –output “test.mp4” “test.avs”

 

avis [info]: 864×480 @ 23.98 fps (1724 frames)
x264 [info]: using cpu capabilities: MMX MMXEXT SSE SSE2 SSE3 SSSE3 Cache64
mp4 [info]: initial delay 2002 (scale 24000)
x264 [info]: slice I:20    Avg QP:15.00  size: 44817:00:00
x264 [info]: slice P:656   Avg QP:18.00  size:  9110
x264 [info]: slice B:1048  Avg QP:19.71  size:  1318
x264 [info]: mb I  I16..4: 35.0% 28.4% 36.6%
x264 [info]: mb P  I16..4:  8.4%  3.3%  2.9%  P16..4: 43.1%  8.5%  4.1%  0.6%  0
.3%    skip:28.9%
x264 [info]: mb B  I16..4:  0.1%  0.0%  0.1%  B16..8: 19.9%  0.6%  1.1%  direct:
 1.1%  skip:77.2%
x264 [info]: 8×8 transform  intra:23.5%  inter:54.3%
x264 [info]: ref P  74.1% 15.8% 10.2%
x264 [info]: ref B  90.3%  9.7%
x264 [info]: kb/s:918.3

encoded 1724 frames, 14.07 fps, 918.45 kb/s

 

变化对比

 

项目

763

767

771

参数

变化率

fps

18.04

22.53

24.05

subme 6 trellis 1

+33%

bitrate

1000.10

1000.24

979.23

-2%

fps

13.33

13.51

14.07

subme 7 trellis 2

+6%

bitrate

939.02

938.90

918.45

-2%

771的压制速度又高于了767,而且在第二套参数下,码率较763将近下降了100K!!

 

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