[FFmpeg-user] Add filter_complex overlay to existing command.

William C Bonner wbonner at wimsworld.com
Thu Apr 6 07:47:41 EEST 2023

I've been using ffmpeg to create time lapse videos successfully for quite
some time. I can't figure out how to convert my simple filter command to a
complex filter command so I can do it all in one process.

Here's an example of my existing command:

ffmpeg -start_number 275 -i 1218%04d.JPG -vf
-c:v libx265 -crf 23 -preset veryfast -movflags +faststart -bf 2 -g 15
-pix_fmt yuv420p -y 1218-2160p30.mp4

I can create an overlay with this command:

ffmpeg -start_number 275 -i 1218%04d.JPG -start_number 275 -i 1218%04d.png
-filter_complex "overlay" -c:v libx265 -crf 23 -preset veryfast -movflags
+faststart -bf 2 -g 15 -pix_fmt yuv420p -y 1218-2160p30.mp4

I've got matching jpg and png files that I want to create time lapse.

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