THETA X USB Live Stream on Linux with OpenCV

[craig]

although this article for the Raspberry Pi with USB API, the same problem with the THETA being mounted as a filesystem may interfere with live streaming over USB cable because the OS think the camera is a filesystem and not a video devices.

RICOH THETA API Over USB Cable - (X, Z1, SC2, V, S, SC models)

Using gphoto2 on a Raspberry Pi to control the RICOH THETA Over a USB Cable I have gphoto2 working on the Raspberry Pi. This is installable with apt and is easier to use than ptpcam. [image] In the example below, I set the shutter chirp to 30% of sound volume and then verify that the setting in correct. pi@raspberrypi ~/Development/libptp2-1.2.0 $ gphoto2 --set-config=502c=30 pi@raspberrypi ~/Development/libptp2-1.2.0 $ gphoto2 --get-config=502c Label: PTP Property 0x502c Type: MENU Curren…

The key part is this:

pi@raspberrypi ~ $ sudo apt remove gvfs-backends
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  gvfs-backends

There may be other automount problems.

see this article:

Disable THETA Automount on Linux and NVIDIA Jetson for USB API

When using the RICOH THETA with the USB API, the camera may be inaccessible. With the RICOH THETA Z1 and ptpcam, you may see this type of error message. craig@jetpack-4:~$ theta --info THETA Device Info ================== ERROR: Could not open session! craig@jetpack-4:~$ craig@jetpack-4:~$ theta --capture Initiating capture... ERROR: Could not open session! craig@jetpack-4:~$ After manual unmount You can use manual unmount. [image] craig@jetpack-4:~$ theta --info THETA Device Info =…

Although the article is for NVIDIA Jetson, you may have utility on the raspberry pi that is automounting the camera as a media device.