All libs installed but now i am facing that error on running mine commands

Unknown encoder 'libx264'
 on command
sudo avconv -i state.mp4 -r 20 -s 480x352 -b 600k -vcodec libx264 out_state.mp4

Unknown encoder 'libmp3lame'
on command
sudo avconv -i state.mp4 -r 20 -s 480x352 -b 600k -vcodec libx264 out_state.mp4


Look at the output of "configure" for "libmp3lame enabled" and "libx264 enabled", I guess both are "no" as they are by default.

You need to pass arguments to "configure" to enable them: "./configure --enable-gpl --enable-libx264 --enable-libmp3lame"

Torsten

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