如何对RMVB格式的视频进行剪辑处理？

delectate@delectate:~/movie/007$ ffmpeg -i ./007之皇家赌场DVD中英字幕高清晰1280×720版.rmvb  sdoifn.avi
FFmpeg version SVN-r24953, Copyright (c) 2000-2010 the FFmpeg developers
  built on Aug 27 2010 18:15:55 with gcc 4.5.1
  configuration: --prefix=/usr --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-postproc --enable-shared --enable-pthreads --enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libschroedinger --enable-libopenjpeg --enable-version3 --enable-nonfree --enable-runtime-cpudetect --disable-debug
  libavutil     50.24. 0 / 50.24. 0
  libavcore      0. 6. 0 /  0. 6. 0
  libavcodec    52.87. 0 / 52.87. 0
  libavformat   52.78. 3 / 52.78. 3
  libavdevice   52. 2. 1 / 52. 2. 1
  libavfilter    1.38. 1 /  1.38. 1
  libswscale     0.11. 0 /  0.11. 0
  libpostproc   51. 2. 0 / 51. 2. 0
[NULL @ 0x865de60] Unsupported video codec
[rm @ 0x8659470] max_analyze_duration reached
Input #0, rm, from './007之皇家赌场DVD中英字幕高清晰1280×720版.rmvb':
  Metadata:
  Duration: 02:24:34.97, start: 0.000000, bitrate: 1503 kb/s
    Stream #0.0: Audio: cook, 44100 Hz, stereo, s16, 44 kb/s
    Stream #0.1: Video: rv40, yuv420p, 1280x720, 1451 kb/s, 12.05 fps, 12 tbr, 1k tbn, 12 tbc
    Stream #0.2: Data: [0][0][0][0] / 0x0000
[buffer @ 0x8660570] w:1280 h:720 pixfmt:yuv420p
Output #0, avi, to 'sdoifn.avi':
  Metadata:
    ISFT            : Lavf52.78.3
    Stream #0.0: Video: mpeg4, yuv420p, 1280x720, q=2-31, 200 kb/s, 12 tbn, 12 tbc
    Stream #0.1: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Press [q] to stop encoding
frame=   16 fps=  0 q=2.9 size=     219kB time=3.66 bitrate= 489.9kbits/s dup=0 frame=   26 fps= 25 q=9.7 size=     291kB time=5.51 bitrate= 433.2kbits/s dup=0 frame=   37 fps= 24 q=11.8 size=     369kB time=7.37 bitrate= 410.0kbits/s dup=0frame=   47 fps= 23 q=27.4 size=     494kB time=10.66 bitrate= 379.5kbits/s dup=frame=   55 fps= 21 q=31.0 size=     500kB time=11.08 bitrate= 370.1kbits/s dup=frame=   66 fps= 21 q=31.0 size=     589kB time=12.96 bitrate= 372.2kbits/s dup=frame=   71 fps= 22 q=31.0 Lsize=     676kB time=12.96 bitrate= 427.4kbits/s dup=0 drop=160    
video:549kB audio:101kB global headers:0kB muxing overhead 3.982864%
Received signal 2: terminating.
delectate@delectate:~/movie/007$