Get image buffer from local video stream

[HermannSW]

> Can I get the image data into something like pixel array instead of solid
file? 
>
Others may know.

>From a performance perspective I would store the files of multifilesink
under "/dev/shm", a tmpfs filesystem under many Unix-like OSes (exists even
on Raspbian).

All files will end up in memory which is efficient, but they are paged and
not contiguous.
For getting access to a single of those frames as pixel array in memory you
would have to read them (eg. with fopen/fseek/ftell/fread).
If you do that on a one frame after the other basis, your memory consumption
would be N+1 frames, not bad compared to the N frames memory consumption you
requested.



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