i_qfactor 0.5 ip_ratio=2.00
frame I:2     Avg QP:20.62  size: 15378
frame P:126   Avg QP:24.64  size:  5648
frame B:372   Avg QP:33.01  size:  1068
SSIM Mean Y:0.9810829 (17.231db)
kb/s:455.93
[MPEG4] 00:00:20.000 (20.000sec) / 1,147,332Bytes

i_qfactor 0.6 ip_ratio=1.67
frame I:2     Avg QP:21.38  size: 14403
frame P:126   Avg QP:24.60  size:  5650
frame B:372   Avg QP:32.91  size:  1069
SSIM Mean Y:0.9810607 (17.226db)
kb/s:455.38
[MPEG4] 00:00:20.000 (20.000sec) / 1,145,958Bytes

i_qfactor 0.7 ip_ratio=1.43
frame I:2     Avg QP:22.07  size: 13559
frame P:126   Avg QP:24.61  size:  5656
frame B:372   Avg QP:32.95  size:  1062
SSIM Mean Y:0.9810196 (17.217db)
kb/s:453.96
[MPEG4] 00:00:20.000 (20.000sec) / 1,142,429Bytes

i_qfactor 無指定 ip_ratio=1.40
frame I:2     Avg QP:22.13  size: 13440
frame P:126   Avg QP:24.63  size:  5656
frame B:372   Avg QP:32.96  size:  1071
SSIM Mean Y:0.9809994 (17.212db)
kb/s:455.18
[MPEG4] 00:00:20.000 (20.000sec) / 1,145,479Bytes

i_qfactor 0.8 ip_ratio=1.25
frame I:2     Avg QP:22.62  size: 12888
frame P:126   Avg QP:24.62  size:  5659
frame B:372   Avg QP:33.00  size:  1070
SSIM Mean Y:0.9809594 (17.203db)
kb/s:454.76
[MPEG4] 00:00:20.000 (20.000sec) / 1,144,426Bytes

i_qfactor 0.9 ip_ratio=1.11
frame I:2     Avg QP:23.14  size: 12340
frame P:126   Avg QP:24.60  size:  5663
frame B:372   Avg QP:32.97  size:  1068
SSIM Mean Y:0.9809254 (17.195db)
kb/s:454.28
[MPEG4] 00:00:20.000 (20.000sec) / 1,143,224Bytes

i_qfactor 1.0 ip_ratio=1.00
frame I:2     Avg QP:23.61  size: 11863
frame P:126   Avg QP:24.59  size:  5664
frame B:372   Avg QP:32.95  size:  1066
SSIM Mean Y:0.9809192 (17.194db)
kb/s:453.54
[MPEG4] 00:00:20.000 (20.000sec) / 1,141,371Bytes