Re: raspberry pi + dvb-t2

2021-03-18 Thread Adrian Musceac
Ok, thanks! On March 18, 2021 1:01:41 PM UTC, Ron Economos wrote: >There are no libvolk optimizations for the LDPC encoder. I don't even >think it's possible. The encoder is just a giant XOR, but the XOR >operands are not from contiguous locations in memory. > >Ron > >On 3/18/21 05:42, Adrian M

Re: raspberry pi + dvb-t2

2021-03-18 Thread Ron Economos
There are no libvolk optimizations for the LDPC encoder. I don't even think it's possible. The encoder is just a giant XOR, but the XOR operands are not from contiguous locations in memory. Ron On 3/18/21 05:42, Adrian Musceac wrote: Hi Ron, Tangential to the subject only, do you know if LDPC

Re: raspberry pi + dvb-t2

2021-03-18 Thread Adrian Musceac
Hi Ron, Tangential to the subject only, do you know if LDPC has optimizations for ARM archs in libvolk? Arm64 mainly. Thanks, Adrian On March 18, 2021 11:54:42 AM UTC, Ron Economos wrote: >I haven't tried it, but it may be possible on a Raspberry Pi 4. I >wouldn't bother with anything less tha

Re: raspberry pi + dvb-t2

2021-03-18 Thread Ron Economos
I haven't tried it, but it may be possible on a Raspberry Pi 4. I wouldn't bother with anything less than a RPi4. I have successfully run a modified DVB-T2 flow graph on a Beagleboard-X15, but only at 5 MHz channel width (5.714285 Msps). I've attached the flow graph. It uses short frames and 5

raspberry pi + dvb-t2

2021-03-18 Thread Ali G. Dezfuli
Hi all, Is there any experience in transmitting DVB-T2 with gnuradio and raspberry pi (any version)? I just wonder if it can work real-time with about 9 MHz sampling frequency of 8 MHz DVB-T2. Thank you! BR, AGD