New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Low frame rate of Ricoh Theta S on Raspberry Pi2 #9

Open

7675t opened this issue Aug 28, 2017 · 1 comment

Member

7675t commented Aug 28, 2017

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

The text was updated successfully, but these errors were encountered:

Member Author

7675t commented Aug 28, 2017

This blog post explains a lot.

raspberrry pi と USBカメラで30fps出すのは難しかったという話

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment