How do I use piping with ffmpeg?

Question

My goal is to use wget to download an flv file, and pipe the output to ffmpeg to convert it to an MP3. This way the user can download the MP3 without waiting for the FLV to

Answer 1

I haven't tested this but should be like this or very close.

wget [URL] | ffmpeg -i pipe:0 -vcodec mpeg4 -s qcif -f m4v -y output.flv