[FFmpeg-user] abitscope won't run

[Mark Filipak]

On 20/05/2024 14.09, Moritz Barsnick via ffmpeg-user wrote:
> On Mon, May 20, 2024 at 13:14:43 -0400, Mark Filipak wrote:
>> Doesn't work:
>> ffmpeg -i c:\source.mp4 -map 0 -af abitscope -c:v libx265 -x265-params
>> crf=18 -c:a ac3 -sn -dn "c:\abitscope.mp4"
> [...]
>> [vf#0:0 @ 000000000053e0c0] Tried to connect video stream to audio filtergraph input
> 
> abitscope has a video output. You need to use a "-filter_complex"
> instead of "-af" to map its output to a video stream (and then of
> course map that stream into your output file).
> 
> Cheers,
> Moritz

Thanks again. I managed to get it to work
   -filter_complex "[0:a]abitscope=r=24000/1001[a]" -map "[a]"
"[0:a]", even though there's only 1 audio stream. Oh, well.

Unfortunately, 'abitscope' doesn't do anything useful. Just pictures of six bands that look like 
Excel, and no measurements. Useless.