OV5640 VGA 90fps?

[hellochenwang]

OV5640 chip is able to output 640x480 image at 90fps, according to their data-sheet.
What might be the bottleneck for us to get that fps?

[JulesThuillier]

Hi !
I think the problem is either with the plugin (it's not optimised), or the kernel V4L2 driver. We have been running lots of test with other Armbian users but could never get more than 36FPS.
Please check the files attached for the tests results.
Also I finally found out a way yesterday to control exposure, gain and stuff like that from IOCTL. It doesn't work from scratch because of the videodev2.h file included that's not working properly.
Cross Compiling OV5640 driver.pdf
Please let me know if you manage to have a higher FPS. I will be working with this camera on a lower level in January, but I'd like to know before if someone really managed to have 90FPS...

[avafinger]

@JulesThuillier
Ca you push your findings somewhere?

[luntik2012]

Hi @JulesThuillier

Did you succeed in you attempts?