gazler@gazler-desktop:~/ruby$ ffmpeg -i 'random11.flv' -f flv out_neu.flv
FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 1 / 52.20. 1
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Mar 31 2011 18:59:37, gcc: 4.4.3

Seems stream 0 codec frame rate differs from container frame rate: 59.83 (29917/500) -> 59.75 (239/4)
Input #0, flv, from 'random11.flv':
  Duration: 00:04:27.77, start: 0.000000, bitrate: 530 kb/s
    Stream #0.0: Video: h264, yuv420p, 640x360 [PAR 1:1 DAR 16:9], 530 kb/s, 59.75 tbr, 1k tbn, 59.83 tbc
    Stream #0.1: Audio: aac, 44100 Hz, stereo, s16
Output #0, flv, to 'out_neu.flv':
    Stream #0.0: Video: flv, yuv420p, 640x360 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 59.75 tbc
    Stream #0.1: Audio: adpcm_swf, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding
frame= 6051 fps=287 q=24.8 size=    9712kB time=101.24 bitrate= 785.9kbits/s   frame= 6197 fps=287 q=31.0 size=    9942kB time=103.70 bitrate= 785.4kbits/s   frame= 6327 fps=286 q=24.8 size=   10177kB time=105.88 bitrate= 787.3kbits/s   frame= 6455 fps=285 q=31.0 size=   10400kB time=108.03 bitrate= 788.6kbits/s   frame= 6583 fps=285 q=31.0 size=   10621kB time=110.16 bitrate= 789.9kbits/s   frame= 6711 fps=284 q=24.8 size=   10832kB time=112.29 bitrate= 790.2kbits/s   frame= 6838 fps=283 q=31.0 size=   11051kB time=114.43 bitrate= 791.2kbits/s   frame= 6968 fps=283 q=31.0 size=   11278kB time=116.61 bitrate= 792.3kbits/s   frame= 7100 fps=283 q=31.0 size=   11549kB time=118.79 bitrate= 796.4kbits/s   frame= 7250 fps=283 q=31.0 size=   11768kB time=121.30 bitrate= 794.7kbits/s   frame= 7402 fps=283 q=31.0 size=   11996kB time=123.86 bitrate= 793.4kbits/s   frame= 7555 fps=284 q=31.0 size=   12224kB time=126.41 bitrate= 792.2kbits/s   frame= 7707 fps=284 q=24.8 size=   12446kB time=128.96 bitrate= 790.6kbits/s   frame= 7859 fps=284 q=31.0 size=   12675kB time=131.52 bitrate= 789.5kbits/s   frame= 8003 fps=284 q=31.0 size=   12907kB time=133.93 bitrate= 789.5kbits/s   frame= 8141 fps=284 q=31.0 size=   13150kB time=136.21 bitrate= 790.9kbits/s   frame= 8284 fps=284 q=31.0 size=   13398kB time=138.62 bitrate= 791.8kbits/s   frame= 8428 fps=284 q=31.0 size=   13646kB time=141.04 bitrate= 792.6kbits/s   frame= 8572 fps=284 q=31.0 size=   13895kB time=143.45 bitrate= 793.5kbits/s   frame= 8718 fps=284 q=31.0 size=   14143kB time=145.87 bitrate= 794.3kbits/s   frame= 8850 fps=284 q=31.0 size=   14394kB time=148.10 bitrate= 796.2kbits/s   frame= 8981 fps=284 q=31.0 size=   14611kB time=150.28 bitrate= 796.5kbits/s   frame= 9111 fps=283 q=24.8 size=   14837kB time=152.46 bitrate= 797.2kbits/s   frame= 9233 fps=282 q=31.0 size=   15096kB time=154.51 bitrate= 800.4kbits/s   frame= 9369 fps=282 q=31.0 size=   15343kB time=156.78 bitrate= 801.7kbits/s   frame= 9513 fps=282 q=31.0 size=   15573kB time=159.20 bitrate= 801.4kbits/s   frame= 9662 fps=283 q=31.0 size=   15788kB time=161.70 bitrate= 799.8kbits/s   frame= 9812 fps=283 q=31.0 size=   16024kB time=164.21 bitrate= 799.4kbits/s   frame= 9938 fps=282 q=31.0 size=   16282kB time=166.30 bitrate= 802.1kbits/s   frame=10064 fps=282 q=31.0 size=   16547kB time=168.39 bitrate= 805.0kbits/s   frame=10188 fps=281 q=31.0 size=   16801kB time=170.48 bitrate= 807.3kbits/s   frame=10304 fps=281 q=31.0 size=   17060kB time=172.43 bitrate= 810.5kbits/s   frame=10421 fps=280 q=31.0 size=   17336kB time=174.38 bitrate= 814.4kbits/s   frame=10547 fps=280 q=31.0 size=   17584kB time=176.52 bitrate= 816.1kbits/s   frame=10679 fps=279 q=31.0 size=   17826kB time=178.70 bitrate= 817.2kbits/s   frame=10807 fps=279 q=31.0 size=   18064kB time=180.84 bitrate= 818.3kbits/s   frame=10937 fps=279 q=31.0 size=   18293kB time=183.02 bitrate= 818.8kbits/s   frame=11068 fps=278 q=31.0 size=   18532kB time=185.20 bitrate= 819.7kbits/s   frame=11198 fps=278 q=31.0 size=   18771kB time=187.41 bitrate= 820.5kbits/s   frame=11330 fps=278 q=31.0 size=   19008kB time=189.61 bitrate= 821.2kbits/s   frame=11460 fps=278 q=31.0 size=   19244kB time=191.80 bitrate= 822.0kbits/s   frame=11578 fps=277 q=31.0 size=   19490kB time=193.75 bitrate= 824.1kbits/s   frame=11702 fps=277 q=31.0 size=   19704kB time=195.84 bitrate= 824.2kbits/s   frame=11829 fps=277 q=31.0 size=   19931kB time=197.97 bitrate= 824.7kbits/s   frame=11955 fps=276 q=24.8 size=   20146kB time=200.06 bitrate= 824.9kbits/s   frame=12079 fps=276 q=31.0 size=   20372kB time=202.15 bitrate= 825.5kbits/s   frame=12213 fps=276 q=31.0 size=   20588kB time=204.38 bitrate= 825.2kbits/s   frame=12391 fps=277 q=31.0 size=   20845kB time=207.35 bitrate= 823.5kbits/s   frame=12574 fps=278 q=31.0 size=   21106kB time=210.42 bitrate= 821.7kbits/s   frame=12750 fps=278 q=31.0 size=   21364kB time=213.39 bitrate= 820.2kbits/s   frame=12890 fps=278 q=31.0 size=   21593kB time=215.71 bitrate= 820.0kbits/s   frame=13042 fps=279 q=31.0 size=   21816kB time=218.27 bitrate= 818.8kbits/s   frame=13197 fps=279 q=31.0 size=   22037kB time=220.87 bitrate= 817.4kbits/s   frame=13351 fps=279 q=31.0 size=   22258kB time=223.42 bitrate= 816.1kbits/s   frame=13495 fps=279 q=31.0 size=   22517kB time=225.84 bitrate= 816.8kbits/s   frame=13645 fps=280 q=31.0 size=   22748kB time=228.34 bitrate= 816.1kbits/s   frame=13795 fps=280 q=31.0 size=   22982kB time=230.85 bitrate= 815.5kbits/s   frame=13948 fps=280 q=31.0 size=   23212kB time=233.41 bitrate= 814.7kbits/s   frame=14074 fps=280 q=31.0 size=   23439kB time=235.54 bitrate= 815.2kbits/s   frame=14200 fps=279 q=31.0 size=   23655kB time=237.63 bitrate= 815.5kbits/s   frame=14326 fps=279 q=31.0 size=   23869kB time=239.72 bitrate= 815.7kbits/s   frame=14458 fps=279 q=31.0 size=   24091kB time=241.95 bitrate= 815.7kbits/s   frame=14590 fps=279 q=31.0 size=   24312kB time=244.13 bitrate= 815.8kbits/s   frame=14715 fps=278 q=24.8 size=   24529kB time=246.27 bitrate= 815.9kbits/s   frame=14851 fps=278 q=31.0 size=   24753kB time=248.55 bitrate= 815.8kbits/s   frame=14997 fps=279 q=31.0 size=   24962kB time=250.96 bitrate= 814.8kbits/s   frame=15143 fps=279 q=31.0 size=   25174kB time=253.42 bitrate= 813.7kbits/s   frame=15286 fps=279 q=31.0 size=   25383kB time=255.83 bitrate= 812.8kbits/s   frame=15432 fps=279 q=31.0 size=   25592kB time=258.25 bitrate= 811.8kbits/s   frame=15574 fps=279 q=31.0 size=   25817kB time=260.62 bitrate= 811.5kbits/s   frame=15728 fps=279 q=31.0 size=   26113kB time=263.22 bitrate= 812.7kbits/s   frame=15960 fps=281 q=31.0 size=   26424kB time=267.08 bitrate= 810.5kbits/s   frame=15999 fps=281 q=24.8 Lsize=   26506kB time=267.77 bitrate= 810.9kbits/s    
video:14583kB audio:11582kB global headers:0kB muxing overhead 1.301504%