[wmain@vmi55044 ~]$ ffmpeg -i iMHOdnalmVU.mp4 -s 640x352 -b:v 800k -preset ultrafast iMHOdnalmVU.mp4 -y
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'iMHOdnalmVU.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.40.101
  Duration: 00:23:27.08, start: 0.000000, bitrate: 933 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 802 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[libx264 @ 0x35d9340] using SAR=11/15
[libx264 @ 0x35d9340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x35d9340] profile Constrained Baseline, level 3.0
[libx264 @ 0x35d9340] 264 - core 148 r2 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=abr mbtree=0 bitrate=800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'iMHOdnalmVU.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.40.101
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x352 [SAR 11:15 DAR 4:3], q=-1--1, 800 kb/s, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc56.60.100 libx264
    Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc56.60.100 libfdk_aac
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[h264 @ 0x3d66220] AVC: nal size 6955
    Last message repeated 1 times
[h264 @ 0x3d66220] no frame!
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x35d14e0] stream 1, offset 0x85cd: partial file
iMHOdnalmVU.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x35d14e0] stream 1, offset 0x8764: partial file
iMHOdnalmVU.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x35d14e0] stream 0, offset 0x8949: partial file
iMHOdnalmVU.mp4: Invalid data found when processing input
frame=    6 fps=0.0 q=-1.0 Lsize=      55kB time=00:00:00.24 bitrate=1879.0kbits/s
video:49kB audio:4kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.675725%
[libx264 @ 0x35d9340] frame I:1     Avg QP:14.00  size:  1002
[libx264 @ 0x35d9340] frame P:5     Avg QP:20.20  size:  9763
[libx264 @ 0x35d9340] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0x35d9340] mb P  I16..4: 85.7%  0.0%  0.0%  P16..4: 14.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
[libx264 @ 0x35d9340] final ratefactor: 25.96
[libx264 @ 0x35d9340] coded y,uvDC,uvAC intra: 44.2% 26.4% 2.8% inter: 75.0% 64.2% 0.3%
[libx264 @ 0x35d9340] i16 v,h,dc,p: 41% 35% 17%  8%
[libx264 @ 0x35d9340] i8c dc,h,v,p: 55% 23% 17%  5%
[libx264 @ 0x35d9340] kb/s:1660.60