mpeg video by fatfs? is possible?

[Tesla DeLorean]

Depends on the amount of bandwidth you start with, and how much you waste.

Small f_read() transactions will be slow, you need to do large, aligned, multi-sector reads.

Do some benchmarking to understand your budgets.​

[Msolinas]

I've custom hardware, STM32H743, 4GB eMMC on SDMMC1, I think is enought for little videos.