ошибка при конвертации mpeg -> H624

ffmpeg -i /home/user1/Downloads/Titanic.avi -vcodec libx264  -vpre medium /home/user1/titanic.mp4
FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
  built on Apr 14 2012 20:37:48 with gcc 4.4.5
  configuration: --enable-gpl --enable-nonfree --enable-pthreads --enable-x11grab --enable-libdc1394 --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-zlib
  libavutil     50.36. 0 / 50.36. 0
  libavcore      0.16. 1 /  0.16. 1
  libavcodec    52.108. 0 / 52.108. 0
  libavformat   52.93. 0 / 52.93. 0
  libavdevice   52. 2. 3 / 52. 2. 3
  libavfilter    1.74. 0 /  1.74. 0
  libswscale     0.12. 0 /  0.12. 0
Input #0, avi, from '/home/user1/Downloads/Titanic_HDTVRip_[rutracker.org]_by_Scarabey.avi':
  Metadata:
    encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
  Duration: 03:06:49.96, start: 0.000000, bitrate: 1115 kb/s
    Stream #0.0: Video: mpeg4, yuv420p, 704x304 [PAR 1:1 DAR 44:19], 25 tbr, 25 tbn, 25 tbc
    Stream #0.1: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
[buffer @ 0xa6468a0] w:704 h:304 pixfmt:yuv420p
[libx264 @ 0xa6148d0] using SAR=1/1
[libx264 @ 0xa6148d0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0xa6148d0] profile High, level 3.0
[libx264 @ 0xa6148d0] 264 - core 122 r2184 5c85e0a - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=200 ratetol=1.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.41 aq=1:1.00
Output #0, mp4, to '/home/user1/titanic.mp4':
  Metadata:
    encoder         : Lavf52.93.0
    Stream #0.0: Video: libx264, yuv420p, 704x304 [PAR 1:1 DAR 44:19], q=10-51, 200 kb/s, 25 tbn, 25 tbc
    Stream #0.1: Audio: libfaac, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding



[ac3 @ 0xa616f80] incomplete frame  359982kB time=11204.72 bitrate= 263.2kbits/s dup=2 drop=0    
frame=280249 fps= 64 q=35.0 Lsize=  368370kB time=11209.88 bitrate= 269.2kbits/s dup=2 drop=0    
video:272229kB audio:87796kB global headers:0kB muxing overhead 2.317726%
frame I:3593  Avg QP:30.58  size:  6077
[libx264 @ 0xa6148d0] frame P:121126 Avg QP:34.84  size:  1634
[libx264 @ 0xa6148d0] frame B:155530 Avg QP:38.18  size:   379
[libx264 @ 0xa6148d0] consecutive B-frames:  9.4% 44.7% 14.9% 30.9%
[libx264 @ 0xa6148d0] mb I  I16..4: 28.6% 61.2% 10.2%
[libx264 @ 0xa6148d0] mb P  I16..4:  4.0%  5.5%  0.3%  P16..4: 38.9%  5.5%  2.2%  0.0%  0.0%    skip:43.6%
[libx264 @ 0xa6148d0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 26.3%  1.0%  0.1%  direct: 0.2%  skip:72.2%  L0:35.0% L1:63.5% BI: 1.4%
[libx264 @ 0xa6148d0] final ratefactor: 32.82
[libx264 @ 0xa6148d0] 8x8 transform intra:57.7% inter:85.1%
[libx264 @ 0xa6148d0] coded y,uvDC,uvAC intra: 27.7% 36.7% 5.0% inter: 5.0% 4.1% 0.0%
[libx264 @ 0xa6148d0] i16 v,h,dc,p: 40% 25% 12% 24%
[libx264 @ 0xa6148d0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 12% 38%  5%  6%  6%  5%  5%  5%
[libx264 @ 0xa6148d0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 17% 22%  6%  7%  7%  6%  5%  4%
[libx264 @ 0xa6148d0] i8c dc,h,v,p: 74% 11% 13%  2%
[libx264 @ 0xa6148d0] Weighted P-Frames: Y:2.8% UV:1.0%
[libx264 @ 0xa6148d0] ref P L0: 66.6% 15.6% 13.0%  4.7%  0.1%
[libx264 @ 0xa6148d0] ref B L0: 90.9%  8.3%  0.8%
[libx264 @ 0xa6148d0] ref B L1: 97.8%  2.2%
[libx264 @ 0xa6148d0] kb/s:198.94