『漫游』酷论坛>『影音数码技术学习交流』>(x264 r2037) --subme 11 相 ..
(x264 r2037) --subme 11 相关简要测试(添加表格汇总)
upyzl@2011-07-24 22:48
x264在r2036引入了subme 11, 从Changelog来看我觉得Trellis和ME应该都是要更新配合才对,不过貌似现在直接用subme 11也没问题的样子(要使用的话,subme11跟subme10的需求一致)
测试工具:sada5编译的x264 r2037,主要是有logger,比2>方便不少
样片:命运石之门游戏TrueED,妖精的尾巴OP6(手头上就这2片;另网络太差就不上传了,刚好一个场景变化不大且偏暗色,一个场景变化很大且偏亮色)
方式:2pass;主要是subme11 vs subme 10 为了直观引入subme11+umh和subme10+tesa的比较;每个测试跑3遍
参数:(pass 1为crf,均不使用--slow-firstpass)
SG的 --fps 30000/1001 --seek 500 --frames 900 --vf resize:768,432 -p2 --stats "tmp.stat" -B 500 --log-file "%~dpn1_%%i.txt" --me umh/tesa -t 2 -m 10/11 --tune ssim --ssim
FT的 --fps 24000/1001 --seek 500 --frames 600 --vf resize:768,432 -p2 --stats "tmp.stat" -B 600 --log-file "%~dpn1_%%i.txt" --me umh/tesa -t 2 -m 10/11 --tune ssim --ssim
结果
SG的--me umh + --subme 10
- x264 [info]: frame I:4 Avg QP:22.97 size: 17795
- x264 [info]: frame P:435 Avg QP:27.55 size: 3563
- x264 [info]: frame B:461 Avg QP:32.50 size: 547
- x264 [info]: consecutive B-frames: 3.0% 82.7% 10.3% 4.0%
- x264 [info]: mb I I16..4: 47.8% 21.5% 30.7%
- x264 [info]: mb P I16..4: 3.4% 0.5% 0.3% P16..4: 24.4% 8.2% 2.6% 0.0% 0.0% skip:60.5%
- x264 [info]: mb B I16..4: 0.1% 0.0% 0.0% B16..8: 15.5% 2.1% 0.1% direct: 0.6% skip:81.6% L0:33.9% L1:54.5% BI:11.5%
- x264 [info]: 8x8 transform intra:14.1% inter:18.9%
- x264 [info]: coded y,uvDC,uvAC intra: 7.7% 14.7% 8.6% inter: 5.8% 3.0% 1.0%
- x264 [info]: i16 v,h,dc,p: 63% 28% 7% 1%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 9% 14% 67% 1% 1% 1% 2% 1% 4%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 21% 42% 3% 4% 2% 3% 3% 6%
- x264 [info]: i8c dc,h,v,p: 60% 27% 12% 2%
- x264 [info]: Weighted P-Frames: Y:5.5% UV:3.4%
- x264 [info]: ref P L0: 71.7% 7.4% 12.9% 7.5% 0.5%
- x264 [info]: ref B L0: 83.6% 15.9% 0.4%
- x264 [info]: ref B L1: 94.5% 5.5%
- x264 [info]: SSIM Mean Y:0.9942365 (22.393db)
- x264 [info]: kb/s:499.09
- x264 [info]: encoded 900 frames, 29.70 fps, 499.09 kb/s
3次速度分别为29.70 29.66 29.72 fps
平均29.697fps ssim=0.9942365
SG的--me umh + --subme 11
- x264 [info]: frame I:4 Avg QP:22.70 size: 17831
- x264 [info]: frame P:435 Avg QP:27.57 size: 3541
- x264 [info]: frame B:461 Avg QP:32.51 size: 563
- x264 [info]: consecutive B-frames: 3.0% 82.7% 10.3% 4.0%
- x264 [info]: mb I I16..4: 23.5% 24.7% 51.8%
- x264 [info]: mb P I16..4: 2.2% 0.4% 1.0% P16..4: 22.7% 11.0% 2.3% 0.0% 0.0% skip:60.3%
- x264 [info]: mb B I16..4: 0.0% 0.0% 0.0% B16..8: 15.5% 2.6% 0.2% direct: 0.6% skip:81.0% L0:33.9% L1:54.5% BI:11.6%
- x264 [info]: 8x8 transform intra:14.1% inter:18.6%
- x264 [info]: coded y,uvDC,uvAC intra: 9.0% 15.8% 9.5% inter: 5.7% 2.9% 0.9%
- x264 [info]: i16 v,h,dc,p: 50% 39% 9% 2%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 14% 57% 1% 1% 1% 2% 1% 4%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 12% 67% 1% 1% 1% 1% 1% 3%
- x264 [info]: i8c dc,h,v,p: 38% 47% 12% 2%
- x264 [info]: Weighted P-Frames: Y:5.5% UV:3.4%
- x264 [info]: ref P L0: 67.9% 6.9% 15.0% 9.7% 0.6%
- x264 [info]: ref B L0: 84.9% 14.7% 0.4%
- x264 [info]: ref B L1: 94.8% 5.2%
- x264 [info]: SSIM Mean Y:0.9943463 (22.477db)
- x264 [info]: kb/s:498.50
- x264 [info]: encoded 900 frames, 18.59 fps, 498.50 kb/s
3次速度分别为18.59 18.59 18.60 fps
平均18.593fps ssim=0.9943463
SG的--me tesa + --subme 10
- x264 [info]: frame I:4 Avg QP:23.03 size: 17839
- x264 [info]: frame P:435 Avg QP:27.59 size: 3559
- x264 [info]: frame B:461 Avg QP:32.51 size: 548
- x264 [info]: consecutive B-frames: 3.0% 82.7% 10.3% 4.0%
- x264 [info]: mb I I16..4: 42.9% 26.3% 30.8%
- x264 [info]: mb P I16..4: 3.7% 0.5% 0.2% P16..4: 24.5% 8.5% 2.6% 0.0% 0.0% skip:60.0%
- x264 [info]: mb B I16..4: 0.1% 0.0% 0.0% B16..8: 15.5% 2.2% 0.1% direct: 0.6% skip:81.5% L0:34.2% L1:54.3% BI:11.5%
- x264 [info]: 8x8 transform intra:14.1% inter:19.2%
- x264 [info]: coded y,uvDC,uvAC intra: 7.1% 13.4% 7.8% inter: 5.8% 2.9% 0.9%
- x264 [info]: i16 v,h,dc,p: 64% 28% 7% 1%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 14% 63% 1% 1% 1% 2% 1% 4%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 21% 39% 3% 4% 2% 3% 3% 6%
- x264 [info]: i8c dc,h,v,p: 60% 26% 12% 2%
- x264 [info]: Weighted P-Frames: Y:5.5% UV:3.4%
- x264 [info]: ref P L0: 71.3% 7.2% 13.2% 7.8% 0.5%
- x264 [info]: ref B L0: 83.3% 16.2% 0.5%
- x264 [info]: ref B L1: 94.7% 5.3%
- x264 [info]: SSIM Mean Y:0.9943326 (22.466db)
- x264 [info]: kb/s:498.74
- x264 [info]: encoded 900 frames, 24.22 fps, 498.74 kb/s
3次速度分别为24.22 24.03 24.20 fps
平均24.150fps ssim=0.9943326
----
FT的--me umh + --subme 10
- x264 [info]: frame I:6 Avg QP:28.19 size: 24650
- x264 [info]: frame P:375 Avg QP:31.63 size: 4108
- x264 [info]: frame B:219 Avg QP:37.06 size: 773
- x264 [info]: consecutive B-frames: 31.8% 56.7% 5.5% 6.0%
- x264 [info]: mb I I16..4: 14.6% 37.2% 48.2%
- x264 [info]: mb P I16..4: 4.7% 6.3% 2.3% P16..4: 26.6% 9.6% 4.3% 0.0% 0.0% skip:46.2%
- x264 [info]: mb B I16..4: 0.1% 0.1% 0.0% B16..8: 17.8% 3.6% 1.0% direct: 1.0% skip:76.4% L0:33.1% L1:62.0% BI: 4.9%
- x264 [info]: 8x8 transform intra:46.2% inter:53.1%
- x264 [info]: coded y,uvDC,uvAC intra: 36.7% 40.2% 14.2% inter: 8.2% 7.0% 0.6%
- x264 [info]: i16 v,h,dc,p: 27% 32% 17% 24%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 14% 33% 5% 5% 5% 7% 5% 11%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 15% 25% 8% 6% 6% 5% 6% 7%
- x264 [info]: i8c dc,h,v,p: 39% 35% 16% 10%
- x264 [info]: Weighted P-Frames: Y:4.0% UV:3.5%
- x264 [info]: ref P L0: 65.2% 15.2% 12.0% 7.5% 0.1%
- x264 [info]: ref B L0: 89.7% 9.9% 0.5%
- x264 [info]: ref B L1: 99.3% 0.7%
- x264 [info]: SSIM Mean Y:0.9742235 (15.888db)
- x264 [info]: kb/s:593.87
- x264 [info]: encoded 600 frames, 17.00 fps, 593.87 kb/s
3次速度分别为17.00 16.99 17.01 fps
平均17.000fps ssim=0.9742235
FT的--me umh + --subme 11
- x264 [info]: frame I:6 Avg QP:28.18 size: 24658
- x264 [info]: frame P:375 Avg QP:31.68 size: 4099
- x264 [info]: frame B:219 Avg QP:37.11 size: 782
- x264 [info]: consecutive B-frames: 31.8% 56.7% 5.5% 6.0%
- x264 [info]: mb I I16..4: 12.7% 35.6% 51.7%
- x264 [info]: mb P I16..4: 4.0% 6.1% 3.0% P16..4: 22.9% 14.1% 3.8% 0.0% 0.0% skip:46.1%
- x264 [info]: mb B I16..4: 0.1% 0.1% 0.0% B16..8: 16.9% 4.6% 1.2% direct: 1.0% skip:76.1% L0:32.6% L1:62.4% BI: 4.9%
- x264 [info]: 8x8 transform intra:45.1% inter:52.1%
- x264 [info]: coded y,uvDC,uvAC intra: 37.1% 41.1% 14.3% inter: 8.0% 6.9% 0.6%
- x264 [info]: i16 v,h,dc,p: 23% 29% 17% 31%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 13% 34% 5% 5% 5% 7% 5% 11%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 13% 35% 7% 5% 5% 4% 5% 6%
- x264 [info]: i8c dc,h,v,p: 30% 40% 16% 14%
- x264 [info]: Weighted P-Frames: Y:4.0% UV:3.5%
- x264 [info]: ref P L0: 65.5% 14.5% 12.2% 7.7% 0.1%
- x264 [info]: ref B L0: 92.2% 7.4% 0.4%
- x264 [info]: ref B L1: 99.5% 0.5%
- x264 [info]: SSIM Mean Y:0.9745654 (15.946db)
- x264 [info]: kb/s:593.43
- x264 [info]: encoded 600 frames, 11.06 fps, 593.43 kb/s
3次速度分别为11.06 11.06 11.07 fps
平均11.063fps ssim=0.9745654
FT的--me tesa + --subme 10
- x264 [info]: frame I:6 Avg QP:28.19 size: 24664
- x264 [info]: frame P:375 Avg QP:31.62 size: 4106
- x264 [info]: frame B:219 Avg QP:37.20 size: 770
- x264 [info]: consecutive B-frames: 31.8% 56.7% 5.5% 6.0%
- x264 [info]: mb I I16..4: 14.9% 36.7% 48.4%
- x264 [info]: mb P I16..4: 4.6% 6.2% 2.3% P16..4: 26.3% 9.8% 4.5% 0.0% 0.0% skip:46.4%
- x264 [info]: mb B I16..4: 0.1% 0.1% 0.0% B16..8: 17.3% 3.6% 1.1% direct: 1.0% skip:76.8% L0:32.9% L1:62.2% BI: 5.0%
- x264 [info]: 8x8 transform intra:46.3% inter:54.5%
- x264 [info]: coded y,uvDC,uvAC intra: 36.6% 40.4% 14.4% inter: 8.3% 7.1% 0.6%
- x264 [info]: i16 v,h,dc,p: 27% 32% 16% 24%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 14% 33% 5% 5% 5% 7% 5% 11%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 15% 25% 8% 6% 6% 5% 6% 7%
- x264 [info]: i8c dc,h,v,p: 39% 35% 16% 10%
- x264 [info]: Weighted P-Frames: Y:4.0% UV:3.5%
- x264 [info]: ref P L0: 65.6% 15.8% 11.3% 7.2% 0.1%
- x264 [info]: ref B L0: 90.8% 8.7% 0.4%
- x264 [info]: ref B L1: 99.3% 0.7%
- x264 [info]: SSIM Mean Y:0.9745798 (15.948db)
- x264 [info]: kb/s:593.39
- x264 [info]: encoded 600 frames, 12.79 fps, 593.39 kb/s
3次速度分别为12.79 12.81 12.81 fps
平均12.803fps ssim=0.9745798
汇总:
因为每次3遍测试里,除了fps外其余信息完全相同,故相同片源+参数的只提供1个信息
可见umh+subme11总是慢于tesa+subme10的
效果则是有优有劣(估计是现在Trellis和ME跟subme11不完全匹配的关系...)
tesa+subme11我是不想跑了……
当然这只是潦草的理论测试
但主观上我也看不出个所以然来(主观评判至少也不会用到--tune ssim里的--no-psy),各位有兴趣可继续研究,并且欢迎分享成果~~~
[ 此帖被upyzl在2011-07-25 09:32重新编辑 ]
roozhou@2011-07-25 18:58
主观看不出就降低码率啊,用个200k的码率就看得出来了。
upyzl@2011-07-26 09:01
确实能看出区别了
均270kbps,此时I帧的平均QP大于34
图是同一帧
subme10 http://i.imgur.com/DJZIF.png
subme11 http://i.imgur.com/sLiYb.png
2张png加起来有1MB左右,就不用img代码了
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