gst_viewer is opening in BLOCKING MODE

[jamal-zaghmout]

Hello. I'm having issues running the sample. I followed the READMEs on building libuvc-theta from source and building this repo but it isn't working for me. When I run ./gst_viewer in the libuvc-theta-sample/gst/ directory, I get the following output:

start, hit any key to stop
Opening in BLOCKING MODE 
NvMMLiteOpen : Block : BlockType = 261 
NVMEDIA: Reading vendor.tegra.display-size : status: 6 
NvMMLiteBlockCreate : Block : BlockType = 261 

stop

So for some reason, it is opening in blocking mode and I couldn't find the cause of the issue wherever I looked.

[codetricity]

Did you also install this: https://github.com/ricohapi/libuvc-theta

Have you seen this thread?

https://community.theta360.guide/t/live-streaming-over-usb-on-ubuntu-and-linux-nvidia-jetson/4359?u=craig

advise if you're using Jetson Nano, Xavier or NX.

Try replace the decoder and sink with this:

“nvv4l2decoder ! nv3dsink sync=false”

https://github.com/ricohapi/libuvc-theta-sample/blob/f8c3caa32bf996b29c741827bd552be605e3e2e2/gst/gst_viewer.c#L192

[jamal-zaghmout]

Did you also install this: https://github.com/ricohapi/libuvc-theta

Have you seen this thread?

https://community.theta360.guide/t/live-streaming-over-usb-on-ubuntu-and-linux-nvidia-jetson/4359?u=craig

advise if you're using Jetson Nano, Xavier or NX.

Try replace the decoder and sink with this:

“nvv4l2decoder ! nv3dsink sync=false”

https://github.com/ricohapi/libuvc-theta-sample/blob/f8c3caa32bf996b29c741827bd552be605e3e2e2/gst/gst_viewer.c#L192

I changed the decoder and sink and it worked! Thank you so much!

I'm also having issues with ptpcam, are you knowledgeable of ptpcam's issues on a Jetson Nano? I tried many ptpcam commands in my terminal, and all of them give me the same error:

could not find any device matching given bus/dev numbers

I cannot find a solution to this anywhere. Your help would be greatly appreciated.

[codetricity]

I can help with with ptpcam too, but can you post the question on the community.theta360.guide forum and mark this issue for libuvc-theta-sample as closed?

[jamal-zaghmout]

Definitely! I'll post it right now. Thanks for your help with the initial issue.