Skip to content
Snippets Groups Projects
FAQ 1.22 KiB
Newer Older
  • Learn to ignore specific revisions
  • Fabrice Bellard's avatar
    Fabrice Bellard committed
    1) ffserver doesn't not work. 
    
    Fabrice Bellard's avatar
    Fabrice Bellard committed
    ffmpeg development is now concentrated on the codec and format
    
    handling. New developments broke ffserver, so don't expect it to work
    correctly. It is planned to fix it ASAP.
    
    2) I cannot read this AVI file.
    
    Even if ffmpeg can read the AVI format, it does not support all its
    codecs. Please consult the supported codec list on the ffmpeg project
    page.
    
    3) I cannot read this Real Audio/Video file.
    
    See (2). ffmpeg only supports Real Video 1.0 and AC3 as Real
    
    Fabrice Bellard's avatar
    Fabrice Bellard committed
    codecs. It mean that you cannot view files encoded with real tools
    
    after version 5.0.
    
    4) I get audio/video synchro problems when grabbing.
    
    Currently, the grabbing stuff does not handle synchronisation
    correctly. You are free to correct it. It is planned to fix it ASAP.
    
    Fabrice Bellard's avatar
    Fabrice Bellard committed
    
    5) How do I encode jpegs to another format ?
    
    If the jpegs are named img1.jpg, img2.jpg, img3.jpg,..., use:
    
      ffmpeg -i img%d.jpg /tmp/a.mpg
    
    '%d' is replaced by the image number.
    
    'img%03d.jpg' generates img001.jpg, img002.jpg, etc...
    
    The same system is used for the other image formats.
    
    
    Fabrice Bellard's avatar
    Fabrice Bellard committed
    6) FFmpeg does not support codec XYZ. Can you include a Windows DLL
       loader to support it ?
    
    No ! FFmpeg only supports open source codecs. Windows DLLs are not
    portable, bloated and often slow.