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！！