Low frame rate of Ricoh Theta S on Raspberry Pi2 #9
Description
- On Laptop PC (Thinkpad X1), I can use usb_cam package to acquire the image from Ricoh Theta S
- The frame rate is 15 fps, which is equal to the specification
- However, on Raspberry Pi2, the frame rate drops about 5 fps
- The CPU load reach 100 %, consumed by usb_cam_node
- We have to find the way to improve this, hopefully 15 fps
- Following command seems to measure the capability of the camera
$ v4l2-ctl --stream-mmap=3 --stream-count=300
- Result is 15 fps, which may mean the hardware has the capability to acquire the image in 15 fps