Extract frames simultaneously from two video using ffmpeg

Question

I would like to know the CLI command and the script to extract images using FFmpeg of two videos simultaneously and not sequentially. For example - the first frame of the first video the first frame of the second video and the second frame of first video and then the second frame of second video and so on.

Videos will be in mp4 or asf and image should be in jpeg

Answer 1

Use the framepack or interleave filters:

ffmpeg -i video0.mp4 -i video1.asf -filter_complex framepack=frameseq output_%04d.jpg

• Both inputs should have the same width, height, and timebase.
• Outputs will be named output_0001.jpg, output_0002.jpg, etc.

Additional info:

• FFmpeg image muxer documentation
• How can I control JPEG image quality from a video file with ffmpeg?