It's even harder if you want to process the images.
Currently there's no driver support for memory-to-memory image statistics (streaming statistics can only be obtained for one stream at a time per interface), which means libcamera might not get some statistics it expects. The ISP-FE (the thing that generates statistics, of which we have two on RP1) can't context-switch in mid-frame, and each one has a total throughput limit of 400Mpix/s.
However, some use cases might not need FE statistics for every frame of every stream (or at all), and in those cases that limit can be ignored.
Even when the drivers are in place, the libcamera pipeline will need modifying to know how to deal with these scenarios.
Currently there's no driver support for memory-to-memory image statistics (streaming statistics can only be obtained for one stream at a time per interface), which means libcamera might not get some statistics it expects. The ISP-FE (the thing that generates statistics, of which we have two on RP1) can't context-switch in mid-frame, and each one has a total throughput limit of 400Mpix/s.
However, some use cases might not need FE statistics for every frame of every stream (or at all), and in those cases that limit can be ignored.
Even when the drivers are in place, the libcamera pipeline will need modifying to know how to deal with these scenarios.
Statistics: Posted by njh — Thu Jun 27, 2024 10:12 am