Hi Marcus, Thanks for the clarification. We do have a need to map the streaming channel index back to the channel id. Is there a fixed mapping formula? For example, if we are streaming channel 1 and 3, then 0 in the UDP means channel 1 and 1 in the UDP means channel 3 and so forth?
Thanks. Yun 2018-09-20 20:11 GMT+00:00 Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com>: > On 09/20/2018 03:58 PM, Yun Li via USRP-users wrote: > >> Hi there, >> >> We are capturing UDP packets while streaming multiple channels (RX >> channel 1 and 3 in particular) from N310 (UHD_3.13.0.2-1-g78745bda). >> Looking at UDP packets, it seems that the channel id field in the VRT >> header is actually set to 0 and 1. I expect the value would be 1 and 3. Is >> there a particular reason for that or am I reading it in a wrong way? >> >> BTW, I also did another test with streaming channel 1,2,3 and the UDP >> packets show 0,1,2. >> >> Thanks. >> Yun >> >> That's just the streaming channel index. If you're only streaming 2 > channels--it's the streaming channel number, not the physical channel > number. > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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