Hi,
I’m playing around with a Jetson Nano dev kit and trying to stream h265 encoded 
video over dvb-t2 using the b210. I am using the example from the dtv folder of 
gr. I modified the source file to read from a file made with mkfifo.

[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; 
UHD_3.15.0.0-54-gbc585b43
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test... 
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test... 
[INFO] [B200] Register loopback test passed
[INFO] [B200] Asking for clock rate 36.571429 MHz... 
[INFO] [B200] Actually got clock rate 36.571428 MHz.

I then launch the gstreamer pipeline and then the below is output and nothing 
is transmitted. I googled around and it was suggested that the usb3 controller 
might be an issue, but I have seen other people successfully using the Jetson 
Nano with the board.

Does anyone have any suggestions?

Thanks,
Greg

SSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 207029870
SSSSSSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 392757359
SSSS[ERROR] [B200] Got a ctrl packet with unknown SID 57090934
[ERROR] [B200] Got a ctrl packet with unknown SID 190782680
SSSSSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 4268095150
[ERROR] [B200] Got a ctrl packet with unknown SID 139913854
[ERROR] [B200] Got a ctrl packet with unknown SID 4067295524
SSSSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 4284742065
SSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 22226522
[ERROR] [B200] Got a ctrl packet with unknown SID 90499236
SS[ERROR] [B200] Got a ctrl packet with unknown SID 23069098
SS[ERROR] [B200] Got a ctrl packet with unknown SID 4066441695
[ERROR] [B200] Got a ctrl packet with unknown SID 4133743282
S[ERROR] [B200] Got a ctrl packet with unknown SID 4150322913
[ERROR] [B200] Got a ctrl packet with unknown SID 90109890
[ERROR] [B200] Got a ctrl packet with unknown SID 441973211
[ERROR] [B200] Got a ctrl packet with unknown SID 241827466
[ERROR] [B200] Got a ctrl packet with unknown SID 124189179
[ERROR] [B200] Got a ctrl packet with unknown SID 73204104
[ERROR] [B200] Got a ctrl packet with unknown SID 458545291
[ERROR] [B200] Got a ctrl packet with unknown SID 3664645059
S[ERROR] [B200] Got a ctrl packet with unknown SID 4200001599
[ERROR] [B200] Got a ctrl packet with unknown SID 4184080041
[ERROR] [B200] Got a ctrl packet with unknown SID 3781167125
SSSSSSUSSSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 224652429
[ERROR] [B200] Got a ctrl packet with unknown SID 56228458
SSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 3981447612
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS[ERROR] [B200] Got a ctrl packet 
with unknown SID 340790525
SSS[ERROR] [B200] Got a ctrl packet with unknown SID 945686494
SSSSSSS[ERROR] [B200] Got a ctrl packet with unknown SID 22817439
SSS

Gstreamer pipeline:
gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=1920, 
height=1080,format=NV12, framerate=30/1' ! nvv4l2h265enc bitrate=8000000 ! 
mpegtsmux ! filesink location=camera.ts


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