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Old 15th July 2012, 00:17   #1  |  Link
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Corrupt frames when using lavf

Thanks for adding support for VFR video .

Here is an issue with the latest version of x264 (core:125 r2200 999b753)

First few frames are getting corrupted.

Here is the source video http://dl.dropbox.com/u/55917837/interview.avi

Here is the encoded video http://dl.dropbox.com/u/55917837/x264.flv

Here is the command used

x264.exe interview.avi -B 600 -o int.flv --demuxer lavf

Here is the output displayed
lavf [info]: 720x480p 0:1 @ 1000/1 fps (vfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 5.2
flv [info]: initial delay 120 ms
x264 [info]: frame I:5     Avg QP:25.72  size: 24273
x264 [info]: frame P:53    Avg QP:21.52  size:  4809
x264 [info]: frame B:107   Avg QP:28.95  size:   593
x264 [info]: consecutive B-frames: 12.7%  2.4%  0.0% 84.8%
x264 [info]: mb I  I16..4: 35.2% 42.2% 22.7%
x264 [info]: mb P  I16..4:  3.6%  6.1%  1.2%  P16..4: 22.6%  7.0%  3.9%  0.0%  0.0%    skip:55.5%
x264 [info]: mb B  I16..4:  0.0%  0.1%  0.0%  B16..8: 22.5%  1.1%  0.2%  direct: 0.3%  skip:75.7%  L0:46.6% L1:47.7% BI: 5.7%
x264 [info]: final ratefactor: 22.40
x264 [info]: 8x8 transform intra:49.6% inter:60.6%
x264 [info]: coded y,uvDC,uvAC intra: 43.8% 62.8% 31.4% inter: 5.9% 5.8% 0.7%
x264 [info]: i16 v,h,dc,p: 57% 20% 18%  6%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 12% 43%  3%  3%  4%  3%  3%  3%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 20% 17%  4%  6%  5%  6%  4%  4%
x264 [info]: i8c dc,h,v,p: 52% 18% 26%  3%
x264 [info]: Weighted P-Frames: Y:3.8% UV:3.8%
x264 [info]: ref P L0: 70.3% 13.0% 12.9%  3.6%  0.2%
x264 [info]: ref B L0: 89.1% 10.0%  0.9%
x264 [info]: ref B L1: 94.5%  5.5%
x264 [info]: kb/s:545.21

encoded 165 frames, 75.62 fps, 546.12 kb/s
Note: There is no such issue when ffms is used.

Thanks and Regards
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Old 15th July 2012, 04:36   #2  |  Link
Derek Prestegard IRL
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Join Date: Nov 2003
Location: Los Angeles
Posts: 5,957
I've moved this post to a new thread, as it certainly did not belong in the long-since dead lavf input testing thread.

Please do not bring threads back to life
These are all my personal statements, not those of my employer :)
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