Using this example command:
ffmpeg -i -c:v libx265 -crf 0 output.mp4
from this thread:
ffmpeg settings for converting still images to video for archival
I can convert a series of 1024 by 576 images in one directory
However
the full resolution images, at 5152 by 2896 fail, with this strange return error:
Killed 6 fps=0.2 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
I suspect I may be running out of RAM on my little Raspberry Pi and, if so I'd appreciate any suggestions how to work around this by creating a swap file or something.