ffmpeg version 0.7.1, Copyright (c) 2000-2011 the FFmpeg developers
  built on Jan 31 2015 22:33:17 with gcc 4.4.7 20120313 (Red Hat 4.4.7-11)
  configuration: --prefix=/usr/local --arch=x86_64 --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-nonfree --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libspeex --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libschroedinger --disable-encoder=libschroedinger --enable-libopenjpeg --enable-librtmp --disable-altivec --disable-armv5te --disable-armv6 --disable-vis --enable-swscale --enable-librtmp --enable-libx264 --extra-cflags='-L/usr/local/lib -I/usr/local/include'
  libavutil    50. 43. 0 / 50. 43. 0
  libavcodec   52.122. 0 / 52.122. 0
  libavformat  52.110. 0 / 52.110. 0
  libavdevice  52.  5. 0 / 52.  5. 0
  libavfilter   1. 80. 0 /  1. 80. 0
  libswscale    0. 14. 1 /  0. 14. 1
  libpostproc  51.  2. 0 / 51.  2. 0
[flv @ 0x20502a0] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
Input #0, flv, from '/var/www/video/video/data/0/264/264237.41.flv':
  Metadata:
    duration        : 6
    width           : 320
    height          : 240
    videodatarate   : 781
    framerate       : 25
    videocodecid    : 2
    audiodatarate   : 64
    audiosamplerate : 44100
    audiosamplesize : 16
    stereo          : false
    audiocodecid    : 2
    encoder         : Lavf52.103.0
    filesize        : 303327
  Duration: 00:00:05.56, start: 0.000000, bitrate: 864 kb/s
    Stream #0.0: Video: flv, yuv420p, 320x240, 800 kb/s, 25 tbr, 1k tbn, 1k tbc
    Stream #0.1: Audio: mp3, 44100 Hz, mono, s16, 64 kb/s
Incompatible pixel format 'yuv420p' for codec 'png', auto-selecting format 'rgb24'
[buffer @ 0x2054aa0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x20529a0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x2054260] w:320 h:240 fmt:yuv420p -> w:320 h:240 fmt:rgb24 flags:0x4
Output #0, rawvideo, to '/var/www/video/video/data/0/264/264237.41.jpg':
  Metadata:
    duration        : 6
    width           : 320
    height          : 240
    videodatarate   : 781
    framerate       : 25
    videocodecid    : 2
    audiodatarate   : 64
    audiosamplerate : 44100
    audiosamplesize : 16
    stereo          : false
    audiocodecid    : 2
    filesize        : 303327
    encoder         : Lavf52.110.0
    Stream #0.0: Video: png, rgb24, 320x240, q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop, [?] for help
frame=    1 fps=  0 q=0.0 Lsize=      70kB time=00:00:00.04 bitrate=14344.0kbits/s    
video:70kB audio:0kB global headers:0kB muxing overhead 0.000000%