In my linux distribution is no ffmpeg. I want to compile it. Which flags for compiling are needed and make sense for the work with the ss modules? Any suggestions?
Good idea! If you look in your ffmpeg_log.txt in code/flv, you'll see a list of all the commands that have been run by FFMPEG. That should give you an idea of the flags that are needed. If that file is empty or non-existent, make sure it's writable by Apache and upload some movies to get some records in there.