级别: 新手上路
- 注册时间:
- 2009-06-17
- 在线时间:
- 0小时
- 发帖:
- 54
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(这是在凌动上网本上的),今天,我卸了预装的暴风影音,又装上了0208版的ffdshow和0208版的x264,虽不再弹出错误,问题还是很明显的! x264.exe -o K:\HDTV\abc.mkv J:\HDTV\abc.ts --keyint 250 --bframes 3 --ref 3 --filter -1,-1 --bitrate 3029 --vbv-maxrate 5000 --qpmin 10 --qpmax 51 --ratetol 1.0 --pass 1 --qcomp 1.0 --analyse p8x8,b8x8,i4x4,i8x8 --8x8dct --direct auto --merange 16 --me umh --subme 6 --mixed-refs --8x8dct --trellis 1 --sar 1:1 --level 4.0 --threads auto --versioninfo --slow-firstpass 1pass后参数,看上去问题还不是很明显,最后一行159.30 kb/s不是很正常: - dshow [info]: duration 01:28:26
- dshow [info]: 1280x720p 1:1 @ 25/1 fps (vfr)
- x264 [info]: using SAR=1/1
- x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
- x264 [warning]: VBV maxrate specified, but no bufsize.
- x264 [info]: profile High, level 4.1
- x264 [info]: frame I:784 Avg QP:21.17 size: 55031
- x264 [info]: frame P:30304 Avg QP:22.94 size: 20327
- x264 [info]: frame B:18237 Avg QP:25.04 size: 5629
- x264 [info]: consecutive B-frames: 30.8% 54.1% 10.2% 5.0%
- x264 [info]: mb I I16..4: 8.9% 74.9% 16.2%
- x264 [info]: mb P I16..4: 2.1% 10.1% 1.6% P16..4: 47.3% 14.0% 7.9% 0.0% 0
- .0%skip:17.1%
- x264 [info]: mb B I16..4: 0.1% 0.3% 0.1% B16..8: 42.8% 0.8% 1.2% direct:
- 2.1% skip:52.5% L0:38.7% L1:56.6% BI: 4.8%
- x264 [info]: final ratefactor: 25.31
- x264 [info]: 8x8 transform intra:73.4% inter:84.1%
- x264 [info]: direct mvs spatial:100.0% temporal:0.0%
- x264 [info]: coded y,uvDC,uvAC intra: 67.8% 85.1% 54.8% inter: 23.2% 35.6% 3.2%
- x264 [info]: i16 v,h,dc,p: 22% 35% 6% 37%
- x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 18% 20% 6% 8% 8% 8% 7% 7%
- x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 27% 13% 5% 8% 8% 8% 5% 5%
- x264 [info]: ref P L0: 71.6% 16.4% 12.0%
- x264 [info]: ref B L0: 80.4% 19.6%
- x264 [info]: kb/s:3088.81
- encoded 49325 frames, 1.28 fps, 159.30 kb/s
2pass,问题就来了,时间、码率、qp全乱套了! 4840 frames (1:33:00): 0.82 fps, 573.86 kb/s - dshow [info]: duration 01:28:26
- dshow [info]: 1280x720p 1:1 @ 25/1 fps (vfr)
- x264 [info]: using SAR=1/1
- x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
- x264 [warning]: VBV maxrate specified, but no bufsize.
- x264 [warning]: Error: 2pass curve failed to converge
- x264 [warning]: target: 59915.00 kbit/s, expected: 17460.31 kbit/s, avg QP: 10.0005
- x264 [warning]: try reducing target bitrate or reducing qp_min (currently 10)
- x264 [info]: profile High, level 4.1
- 4840 frames (1:33:00): 0.82 fps, 573.86 kb/s
这种target和expected乱套原来2006年就已经出现了 http://forum.doom9.org/archive/index.php/t-119402.html
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