We have been unable to use ptpcam --capture after we installed it according to the video. Here is the video’s link: RICOH THETA USB API on Raspberry Pi - Setup and Use
And this is our problem:
Have you ever encountered this problem and solved it?
Thank you!
Are you using the code from here:
Yes. But we can not use ptpcam --capture. It always shows us PTP: Device Busy.
And we can not find /dev/video0 in our Rpi.
Theta camera does not appear as a /dev/video device except if you use a special driver.
Check if the camera appears with lsusb and wi-fi switch to off for the theta.
I think I had to remove ‘GVfs’ (GNOME virtual file system) in order to use ptpcam or gphoto2
sudo chmod -x /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
sudo chmod -x /usr/lib/gvfs/gvfsd-gphoto2
restart Pi
This should work
Hugues
We follow your advice and reboot Rpi.
It is still not working.
We try every mode of Theta V, it shows us like this:
Camera mode: Events receiving error. Capture status unknow.
Video mode: PTP: access denied. Error: Could not capture.
Live mode: PTP: Device busy. Error: Could not capture.
We change our Rpi. Now it is Raspberry Pi 4(raspbian os 64-bits) and ricoh theta V. It is still not working.
Is it caused by the USB cable or the OS in Rpi?
I don’t have any problem with Rpi3B+ or Rpi4B+, with theta V or Z1. I’m using gphoto2 instead of ptpcam.
I don’t use graphical interface with Rpi but only command line.
Is your theta mounted ? Try to unmount the drive.
Hugues
Is the THETA V mounted as a local storage device? You need to unmount it.
You may need to remove gvfs-backends
sudo apt remove gvfs-backends
Try killing the gvfs processes that are mounting your camera as a filesystem
We use sudo apt remove gvfs-backends and it still not work for us.
And we noticed that you use theta instead of ptpcam.
We want to use the command like yours(theta --info, theta --capture).
What should we download?
Thanks.
The theta is my example is the same as ptpcam. I renamed it after I modified ptpcam so that I could test the original ptpcam and the modified version for comparison.
You’re welcome to try my exact code base here
It is just a fork of the repo from nickel110
Thanks for your help!!!
We finally finished it.
We referenced the following URL and debugged it.
(URL:Raspberry Pi4 + RICOH THETA V でライブストリーミング) Note: The steps in the URL may not be complete, but only some installation packages are missing.
And, your advices are really helpful for us. Thank you a lot.
Sorry for our poor English.
Congratulations on your success! Thank you for posting again.
In the original post, you had a problem with ptpcam. In the most recent post, you link to an article on libuvc-theta.
Did you isolate the problem with ptpcam? Did you have to install libusb-dev and rebuild libptp2 from source?
Did you have to install libusb-compat-0.1?
I’m trying to figure out if we need to provide additional documentation for people with a rasbperry pi.
Thanks.
