Posts: 5
Joined: Wed Oct 22, 2014 5:50 pm

FFMPEG and ALSA Support

Sun Oct 26, 2014 8:35 pm

Hey there guys!

I'm working on a project to get my Raspberry Pi to recieve a microphone input and stream this over using RTP.
At the moment I got an external USB audio card and a microphone but im having trouble getting a stream up and running.

I tried to follow this post: ... ing-ffmpeg
Specifically this command: ffmpeg -ac 1 -f alsa -i hw:0,0 -acodec libmp3lame -ab 32k -ac 1 -re -f rtp rtp://localhost:1234
but when i try to run it I get the error ffmpeg unknown input format: 'alsa' raspbian..

Could anyone tell me why this is? And possibly tell me how I should go about getting FFMPEG to work with alsa or any other proven methods of getting an audio stream working with decent latency.

Thanks in advanced!

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