Is it possible to input a video and extract images every second while simultaneously stack them horizontally or vertically with the "hstack" filter to create one jpg image?
The only way I can figure out how to do it is by extractning the still-frames with this command:
ffmpeg -i INPUT.mov -vf fps=1 -s 192x108 thumbnails%03d.jpg
And then inputting them one by one and then specifying then number of inputs like this.
ffmpeg -y -i thumbnails001.jpg -i thumbnails002.jpg -i thumbnails003.jpg... filter_complex vstack=inputs=3 output.jpg
It would be nice if it was possible to do in one more dynamic chunk from the original video or at least from one inputted Video-Sequence and not manually inserting the number of INPUTS needed to create the Stack.