[FFmpeg-user] superimpose audio on stream

[Zoltan Kerenyi Nagy]

Hello,

I'd like to overlay the audio waveform coming from an axis camera's stream.
I've started to read the documentation, but It's quiet complex. For testing
I use that bunny stream.

So far I managed to pad a bottom:

#!/bin/bash

stream="rtsp://184.72.239.149/vod/mp4:BigBuckBunny_175k.mov"
padbottom=40

ffmpeg -i "$stream" -vf
"pad=width=240:height=160+$padbottom:x=0:y=0:color=black" outfile.mp4


I'd like similar to this video:

https://www.youtube.com/watch?v=BG9SYC0wWYw


Could you please help me?

Thanks,

Zolee