x264 1867新质量评价体系测试

[dgwxx]

样本是獣の奏者エリンOP的前960帧。

1834的老评价体系（用来做参照）：
x2641834-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_24.avs"
avs [info]: 1280x720p 0:0 @ 24000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:13.91 size:134065 PSNR Mean Y:50.37 U:52.84 V:53.70 Avg:51.12 Global:50.98
x264 [info]: frame P:216 Avg QP:17.66 size: 38853 PSNR Mean Y:48.02 U:50.94 V:51.09 Avg:48.79 Global:48.68
x264 [info]: frame B:736 Avg QP:21.56 size: 5683 PSNR Mean Y:47.28 U:50.32 V:50.51 Avg:48.08 Global:47.93
x264 [info]: consecutive B-frames: 1.5% 1.5% 5.4% 35.3% 21.0% 25.8% 9.6%
x264 [info]: mb I I16..4: 6.2% 56.5% 37.4%
x264 [info]: mb P I16..4: 3.9% 16.3% 2.2% P16..4: 41.7% 19.2% 5.4% 0.3% 0.4% skip:10.6%
x264 [info]: mb B I16..4: 0.5% 1.3% 0.1% B16..8: 24.8% 4.0% 0.9% direct: 6.6% skip:61.8% L0:39.8% L1:51.7% BI: 8.5%
x264 [info]: 8x8 transform intra:70.5% inter:67.1%
x264 [info]: coded y,uvDC,uvAC intra: 62.9% 67.9% 42.8% inter: 17.7% 21.6% 8.5%
x264 [info]: i16 v,h,dc,p: 26% 20% 7% 47%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 12% 12% 8% 12% 11% 11% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 8% 8% 16% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 32% 28% 18% 22%
x264 [info]: Weighted P-Frames: Y:7.9% UV:7.4%
x264 [info]: ref P L0: 52.3% 11.3% 19.4% 5.3% 5.8% 5.4% 0.4%
x264 [info]: ref B L0: 83.3% 9.6% 3.9% 1.8% 1.3%
x264 [info]: ref B L1: 96.0% 4.0%
x264 [info]: SSIM Mean Y:0.9888167 (19.514db)
x264 [info]: PSNR Mean Y:47.465 U:50.478 V:50.667 Avg:48.261 Global:48.104 kb/s:2702.76

encoded 959 frames, 4.09 fps, 2702.76 kb/s

======================================================

1867加入时间函数之后的评价体系：
x2641867-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_24.avs"
avs [info]: 1280x720p 0:0 @ 24000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:13.79 size:135710 PSNR Mean Y:50.43 U:52.90 V:53.76 Avg:51.18 Global:51.05
x264 [info]: frame P:214 Avg QP:17.49 size: 39832 PSNR Mean Y:48.07 U:50.97 V:51.13 Avg:48.84 Global:48.73
x264 [info]: frame B:738 Avg QP:21.58 size: 5732 PSNR Mean Y:47.31 U:50.35 V:50.54 Avg:48.11 Global:47.96
x264 [info]: consecutive B-frames: 2.2% 1.5% 5.6% 32.5% 20.9% 25.7% 11.7%
x264 [info]: mb I I16..4: 5.8% 57.0% 37.2%
x264 [info]: mb P I16..4: 3.8% 16.4% 2.3% P16..4: 41.5% 19.4% 5.5% 0.3% 0.4% skip:10.3%
x264 [info]: mb B I16..4: 0.5% 1.4% 0.1% B16..8: 24.6% 4.0% 0.9% direct: 6.6% skip:61.9% L0:40.3% L1:51.0% BI: 8.7%
x264 [info]: 8x8 transform intra:70.6% inter:66.8%
x264 [info]: coded y,uvDC,uvAC intra: 63.2% 68.2% 43.3% inter: 17.8% 21.6% 8.7%
x264 [info]: i16 v,h,dc,p: 26% 19% 8% 47%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 12% 13% 8% 12% 10% 11% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 10% 9% 9% 16% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 32% 28% 18% 22%
x264 [info]: Weighted P-Frames: Y:8.4% UV:7.5%
x264 [info]: ref P L0: 52.1% 11.3% 19.4% 5.4% 5.9% 5.4% 0.5%
x264 [info]: ref B L0: 83.2% 9.7% 3.9% 1.8% 1.3%
x264 [info]: ref B L1: 96.1% 3.9%
x264 [info]: SSIM Mean Y:0.9888855 (19.541db)
x264 [info]: PSNR Mean Y:47.500 U:50.506 V:50.695 Avg:48.295 Global:48.137 kb/s:2740.95

encoded 959 frames, 4.04 fps, 2740.95 kb/s

======================================================

x2641867-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_25.avs"
avs [info]: 1280x720p 0:0 @ 25000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:13.95 size:133773 PSNR Mean Y:50.36 U:52.83 V:53.70 Avg:51.11 Global:50.98
x264 [info]: frame P:214 Avg QP:17.64 size: 38926 PSNR Mean Y:48.01 U:50.92 V:51.09 Avg:48.79 Global:48.67
x264 [info]: frame B:738 Avg QP:21.57 size: 5696 PSNR Mean Y:47.27 U:50.32 V:50.52 Avg:48.08 Global:47.93
x264 [info]: consecutive B-frames: 2.2% 1.5% 5.6% 32.5% 20.9% 25.7% 11.7%
x264 [info]: mb I I16..4: 6.4% 56.5% 37.1%
x264 [info]: mb P I16..4: 3.9% 16.3% 2.3% P16..4: 41.7% 19.2% 5.4% 0.3% 0.4% skip:10.6%
x264 [info]: mb B I16..4: 0.5% 1.4% 0.1% B16..8: 24.5% 4.0% 0.9% direct: 6.6% skip:62.1% L0:40.3% L1:51.1% BI: 8.6%
x264 [info]: 8x8 transform intra:70.7% inter:67.4%
x264 [info]: coded y,uvDC,uvAC intra: 63.0% 68.0% 42.9% inter: 17.6% 21.5% 8.5%
x264 [info]: i16 v,h,dc,p: 25% 20% 7% 47%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 12% 12% 8% 12% 11% 11% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 10% 8% 8% 16% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 33% 27% 17% 22%
x264 [info]: Weighted P-Frames: Y:8.4% UV:7.5%
x264 [info]: ref P L0: 52.0% 11.3% 19.6% 5.3% 5.9% 5.4% 0.5%
x264 [info]: ref B L0: 83.5% 9.5% 3.9% 1.8% 1.3%
x264 [info]: ref B L1: 96.0% 4.0%
x264 [info]: SSIM Mean Y:0.9888075 (19.511db)
x264 [info]: PSNR Mean Y:47.459 U:50.474 V:50.667 Avg:48.256 Global:48.100 kb/s:2806.46

encoded 959 frames, 4.01 fps, 2806.46 kb/s

======================================================

x2641867-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_60.avs"
avs [info]: 1280x720p 0:0 @ 60000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:16.82 size:100671 PSNR Mean Y:48.88 U:51.46 V:52.48 Avg:49.66 Global:49.51
x264 [info]: frame P:214 Avg QP:20.60 size: 25345 PSNR Mean Y:46.81 U:50.00 V:50.17 Avg:47.64 Global:47.50
x264 [info]: frame B:738 Avg QP:21.82 size: 5503 PSNR Mean Y:46.51 U:49.72 V:49.90 Avg:47.35 Global:47.21
x264 [info]: consecutive B-frames: 2.2% 1.5% 5.6% 32.5% 20.9% 25.7% 11.7%
x264 [info]: mb I I16..4: 10.1% 64.7% 25.2%
x264 [info]: mb P I16..4: 4.6% 15.9% 1.5% P16..4: 44.7% 13.9% 3.2% 0.2% 0.1% skip:15.8%
x264 [info]: mb B I16..4: 0.5% 1.4% 0.1% B16..8: 23.5% 3.9% 0.8% direct: 6.5% skip:63.3% L0:38.6% L1:53.6% BI: 7.8%
x264 [info]: 8x8 transform intra:71.1% inter:77.5%
x264 [info]: coded y,uvDC,uvAC intra: 56.0% 62.2% 32.0% inter: 15.6% 19.2% 4.9%
x264 [info]: i16 v,h,dc,p: 28% 20% 7% 44%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 11% 12% 9% 12% 11% 12% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 11% 8% 8% 17% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 31% 29% 18% 23%
x264 [info]: Weighted P-Frames: Y:8.4% UV:7.5%
x264 [info]: ref P L0: 53.4% 12.3% 17.6% 5.1% 5.5% 5.5% 0.5%
x264 [info]: ref B L0: 84.8% 8.2% 3.9% 1.7% 1.4%
x264 [info]: ref B L1: 95.3% 4.7%
x264 [info]: SSIM Mean Y:0.9870624 (18.881db)
x264 [info]: PSNR Mean Y:46.597 U:49.791 V:49.981 Avg:47.427 Global:47.284 kb/s:5094.95

encoded 959 frames, 4.17 fps, 5094.95 kb/s

完全意料之中的结果。

[upyzl]

呃……不拿1834做25000/1001和60000/1001的对比么

[dgwxx]

在1834的质量评价体系里，fps（->引申为每一帧持续的时间）不对质量的评价造成影响。所以可以预想到的结果是，无论是多少fps，质量都会是完全相同的。不过，口说无凭，姑且又用1834测试了25fps和60fps，log如下：

x2641834-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_25.avs"
avs [info]: 1280x720p 0:0 @ 25000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:13.91 size:134065 PSNR Mean Y:50.37 U:52.84 V:53.70 Avg:51.12 Global:50.98
x264 [info]: frame P:216 Avg QP:17.66 size: 38853 PSNR Mean Y:48.02 U:50.94 V:51.09 Avg:48.79 Global:48.68
x264 [info]: frame B:736 Avg QP:21.56 size: 5683 PSNR Mean Y:47.28 U:50.32 V:50.51 Avg:48.08 Global:47.93
x264 [info]: consecutive B-frames: 1.5% 1.5% 5.4% 35.3% 21.0% 25.8% 9.6%
x264 [info]: mb I I16..4: 6.2% 56.5% 37.4%
x264 [info]: mb P I16..4: 3.9% 16.3% 2.2% P16..4: 41.7% 19.2% 5.4% 0.3% 0.4% skip:10.6%
x264 [info]: mb B I16..4: 0.5% 1.3% 0.1% B16..8: 24.8% 4.0% 0.9% direct: 6.6% skip:61.8% L0:39.8% L1:51.7% BI: 8.5%
x264 [info]: 8x8 transform intra:70.5% inter:67.1%
x264 [info]: coded y,uvDC,uvAC intra: 62.9% 67.9% 42.8% inter: 17.7% 21.6% 8.5%
x264 [info]: i16 v,h,dc,p: 26% 20% 7% 47%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 12% 12% 8% 12% 11% 11% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 8% 8% 16% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 32% 28% 18% 22%
x264 [info]: Weighted P-Frames: Y:7.9% UV:7.4%
x264 [info]: ref P L0: 52.3% 11.3% 19.4% 5.3% 5.8% 5.4% 0.4%
x264 [info]: ref B L0: 83.3% 9.6% 3.9% 1.8% 1.3%
x264 [info]: ref B L1: 96.0% 4.0%
x264 [info]: SSIM Mean Y:0.9888167 (19.514db)
x264 [info]: PSNR Mean Y:47.465 U:50.478 V:50.667 Avg:48.261 Global:48.104 kb/s:2815.37

encoded 959 frames, 3.90 fps, 2815.37 kb/s

=====================================================

x2641834-32 --profile high --crf 16 --deblock -1:-1 --keyint 240 --min-keyint 24 --ref 6 --no-fast-pskip --bframes 6 --b-adapt 2 --subme 10 --merange 32 --trellis 2 --psy-rd 0.4:0 --partitions all --me tesa --thread-input --no-dct-decimate --rc-lookahead 48 --b-pyramid normal --aq-mode 2 --psnr --ssim --output NUL "e:\test_60.avs"
avs [info]: 1280x720p 0:0 @ 60000/1001 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 4.0
x264 [info]: frame I:7 Avg QP:13.91 size:134065 PSNR Mean Y:50.37 U:52.84 V:53.70 Avg:51.12 Global:50.98
x264 [info]: frame P:216 Avg QP:17.66 size: 38853 PSNR Mean Y:48.02 U:50.94 V:51.09 Avg:48.79 Global:48.68
x264 [info]: frame B:736 Avg QP:21.56 size: 5683 PSNR Mean Y:47.28 U:50.32 V:50.51 Avg:48.08 Global:47.93
x264 [info]: consecutive B-frames: 1.5% 1.5% 5.4% 35.3% 21.0% 25.8% 9.6%
x264 [info]: mb I I16..4: 6.2% 56.5% 37.4%
x264 [info]: mb P I16..4: 3.9% 16.3% 2.2% P16..4: 41.7% 19.2% 5.4% 0.3% 0.4% skip:10.6%
x264 [info]: mb B I16..4: 0.5% 1.3% 0.1% B16..8: 24.8% 4.0% 0.9% direct: 6.6% skip:61.8% L0:39.8% L1:51.7% BI: 8.5%
x264 [info]: 8x8 transform intra:70.5% inter:67.1%
x264 [info]: coded y,uvDC,uvAC intra: 62.9% 67.9% 42.8% inter: 17.7% 21.6% 8.5%
x264 [info]: i16 v,h,dc,p: 26% 20% 7% 47%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 12% 12% 8% 12% 11% 11% 10% 14%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 8% 8% 16% 12% 11% 8% 10%
x264 [info]: i8c dc,h,v,p: 32% 28% 18% 22%
x264 [info]: Weighted P-Frames: Y:7.9% UV:7.4%
x264 [info]: ref P L0: 52.3% 11.3% 19.4% 5.3% 5.8% 5.4% 0.4%
x264 [info]: ref B L0: 83.3% 9.6% 3.9% 1.8% 1.3%
x264 [info]: ref B L1: 96.0% 4.0%
x264 [info]: SSIM Mean Y:0.9888167 (19.514db)
x264 [info]: PSNR Mean Y:47.465 U:50.478 V:50.667 Avg:48.261 Global:48.104 kb/s:6756.89

encoded 959 frames, 3.91 fps, 6756.89 kb/s

嗯……结果确实是完全一样的。

[upyzl]

感谢dgw大测试

这对压制高帧率游戏视频还是很有参考价值的

[06_taro]

其实本来想做个vfr的测试，用vfr的视频看加了vfr mbtree后全片码率分布和1834之间的变化……
或者更EP点看verbose出来的单帧数据……
正好家里这找不到vfr源……
自己写个tc搞进去不知道有没有实用性……毕竟实际动画里面bob60的地方都是一些比较典型的画面，随便找地方嵌个随机tc还是不太甘心……