[FFmpeg-user] Application provided invalid, non monotonically increasing dts to muxer in stream

[MrNice]

I didn't notice the answer above, I thought my answer will got in the
September folder with the same name.

So to answer Claudiu, the simplest CL:

./ffmpeg -debug 1 -f v4l2 -i /dev/video0 -c:v ffv1 /Store3/Test/t_`date
+%Y%m%d_%H%M`.mkv -f sdl "Dazzle output"
give the same issue/pattern/drops

and the CL without sdl
./ffmpeg -debug 1 -f v4l2 -i /dev/video0 -c:v ffv1 /Store3/Test/t_`date
+%Y%m%d_%H%M`.mkv
output the yellow messages,
not the red message "Application provided invalid, non monotonically
increasing dts to muxer in stream 0: xxx >= xxx",
BUT still has drops.

CPU AMD FX8120 3.1MHz, about 25, 30% usage, nothing noticeable.
I don't have another capture device.

I hope to get an answer, I am stuck in my project.