ffmpeg conversion .dav to any video files

Question

I am trying for days to convert .dav file (file generated by dvrs [image recorders]). I have tried several variations with ffmpeg and can not succeed.<

Answer 1

Using ffmpeg from dav to mp4

ffmpeg -y -i input-file.dav -c:v libx264 -crf 24 output-file.mp4

I use for security cameras and add -filter:v "setpts=3*PTS" param to slow video.

Reference to solution here