how to export in lavf54 using the ffmpeg

Hello, can anyone help ?

I have the ffmpeg installed but I dont see lavf54 anywhere nor do I see the libaformat


What is lavf54 and where is it used?

from what i know its an encoder. i read somewhere that it stands for libaformat. I am not sure. Some songs are encoded with it thats all i know lol

What are you trying to do, exactly? See here for how to install the recommended FFmpeg 2.2.2 in Audacity That will let you export in more formats, such as WMA, MP4 and AC3. It uses libavformat 55.

If you want to use some arbitrary ffmpeg.exe instead, see Exporting to an External Program.