[FFmpeg-user] how to pass output of lavfi to xv?

[Anatoly]

On Sun, 28 May 2017 23:07:37 +0200
Moritz Barsnick <barsnick at gmx.net> wrote:

> I get a totally different error message, including an indication as to
> what to do about it (choose an xv-compatible pixel format).
Thank you for pointing me that, I've just overlooked those strings
in the middle of the output, paying attention to the last strings only.
Now I understand that I must tell lafi to produce yuyv422 output:
# ffmpeg -i Like\ an\ e-bird.mp3 -lavfi showvolume,format=yuyv422 -f xv
audiolevel