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.
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