CloudXR v3.2 network environment and bitrate related issues

Gaming and Visualization Technologies XR – VR/AR/MR CloudXR (VR and AR Streaming)
#1

I,ve tried two ways: Windows Client and Oculus VR Client (Android) to connect to the server under the 3.1 and 3.2 version.
The following is my test environment and questions.

[Window Client]
Server: AWS EC2 Instance g4dn.xlarge
Client: Window Client(GPU GTX1080) + Meta Quest 2 (Oculus Link)

  1. Whether I enter “-nic ethernet -nt wan” after IP or not, the log shows always that clientNetwork: 0, topology: 1 and max VideoBitrate: 100000.

Client_IP_only
Client_IP_only1172×565 144 KB

Client_select_ethernet_wan
Client_select_ethernet_wan1118×718 201 KB

  1. When playing under v3.1 and v3.2, the maximum bitrate is around 70Mbps, and there is almost no difference.

v3.1_bitrate.PNG
v3.1_bitrate.PNG1911×867 158 KB

v3.2_bitrate.PNG
v3.2_bitrate.PNG1908×862 157 KB

[Oculus VR Client (Android)]
Server: AWS EC2 Instance g4dn.xlarge
Client: Oculus VR Client (Meta Quest 2)

  1. I used the command “-s IP -nic wifi5ghz -nt wan maxVideoBitrateKbps=0“ in the .txt file. I added the option “maxVideoBitrateKbps=0” to make the value unlimited. The log shows that clientNetwork and topology have correctly changed the specified network channel, but the maxVideoBitrate value remains at 100000.

txt code

quest2 log
quest2 log909×583 25.8 KB

  1. And when playing under v3.1 and v3.2, the maximum bitrate is still around 70Mbps.

My questions is:

  1. Why does the result of entering -nic ethernet -nt wan in the Window Client seem invalid? But Oculus can; how to set the QoS environment and parameters by myself?

  2. Is the parameter “maxVideoBitrate” the maximum bitrate that can transmit video? Is it adjustable? Currently changing this parameter has not seen any change.

Thanks!

Azure

3 Likes
#2

I have the same problem, testing configuration with 1000 Mbps network with 5G, but CloudXR blocked bitrate up to 90-100 Mbps

#3

Hello – the maxVideoBitrate parameter is for the function cxrConnect and can be set when building your client from source. It is not a valid option from the client text configuration file.
https://docs.nvidia.com/cloudxr-sdk/prog_guide/api_doxygen.html?highlight=maxvideobitratekbps#c.cxrConnectionDesc

#4

Why does the result of entering -nic ethernet -nt wan in the Window Client seem invalid? But Oculus can; how to set the QoS environment and parameters by myself?