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+--- Thread: Nvidia Jetson Nano, superfast Kodi device? (/showthread.php?tid=342261)
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-27
Log is available at:
eyinisamaf.kodi (paste)
if it helps...
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-27
(2020-07-27, 21:45)jaj2020 Wrote: Log is available at:
eyinisamaf.kodi (paste)
if it helps...
Interesting... Is it Jetson Nano ? What version of Linux For Tegra ?
It certainly, can't mmap buffer.
Code:
2020-07-27 22:38:08.235 T:32604 ERROR <general>: CNVV4LBuffer::Map failed to mmap buffer: Bad file descriptor
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-27
Yep. Jetson nano.
Latest L4T 32.4.3
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-27
(2020-07-27, 23:24)jaj2020 Wrote: Yep. Jetson nano.
Latest L4T 32.4.3
That is very unusual for mmap to fail. I'll add some more extra debug information logging. So it would help to debug the issue.
Can you also share dmesg output ?
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-28
This commit will show some more details on buffer allocation process. Also I moved pool configuration to header.
Pull this commit in your local repository git pull in source code folder and try to adjust OUTPUT and EXTRA settings in xbmc/cores/VideoPlayer/DVDCodecs/Video/NVV4LCodec.h file. No nead to do make clean, make && make install should suffice.
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-28
(2020-07-28, 00:32)hashtag Wrote: This commit will show some more details on buffer allocation process. Also I moved pool configuration to header.
Pull this commit in your local repository git pull in source code folder and try to adjust OUTPUT and EXTRA settings in xbmc/cores/VideoPlayer/DVDCodecs/Video/NVV4LCodec.h file. No nead to do make clean, make && make install should suffice.
I am using 12 buffers for input for no particular reason
. Try may be reduce to 8, and EXTRA output to 4.
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-28
Hmm, same thing.
Pulled the git & compiled ( changed to 8 and 4 ).
Thats the log:
muparayefo.kodi (paste)
and thats the dmesg log:
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-28
(2020-07-28, 09:46)jaj2020 Wrote: Hmm, same thing.Sorry, thats the dmesg log:
Pulled the git & compiled ( changed to 8 and 4 ).
Thats the log:
muparayefo.kodi (paste)
and thats the dmesg log:
ayaloganax.kodi (paste)
RE: Nvidia Jetson Nano, superfast Kodi device? - noggin - 2020-07-28
OK pulled new version of code and re-compiled. I think I may have been premature about my 'i25/p25 stuff causing it to crash' - but I have noticed that i25 stuff isn't being deinterlaced to p50 (looks like it's being deinterlaced as I don't see a lot of combing, but native interlaced content playback has 25Hz motion rather than the 50Hz you'd expect).
Is this an nVidia thing or is it possible to get full motion deinterlacing with hardware decoding (either with software or hardware deinterlace?)
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-28
Hey!
Just re flashed the Jetson, did a clean install of all dependencies, recompiled the code and it works!
I have no idea what went wrong at my first try.
Sorry for throwing you off.
Amazing job you did there HASHTAG, thank you!
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-28
(2020-07-28, 15:03)jaj2020 Wrote: Hey!
Just re flashed the Jetson, did a clean install of all dependencies, recompiled the code and it works!
I have no idea what went wrong at my first try.
Sorry for throwing you off.
Amazing job you did there HASHTAG, thank you!
Hey! Glad it worked out! I was thinking to suggest to do that, as last resort. Bad file descriptor on v4l2 very rare issue, that is related to kernel.
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-28
(2020-07-28, 11:02)noggin Wrote: OK pulled new version of code and re-compiled. I think I may have been premature about my 'i25/p25 stuff causing it to crash' - but I have noticed that i25 stuff isn't being deinterlaced to p50 (looks like it's being deinterlaced as I don't see a lot of combing, but native interlaced content playback has 25Hz motion rather than the 50Hz you'd expect).
Is this an nVidia thing or is it possible to get full motion deinterlacing with hardware decoding (either with software or hardware deinterlace?)
I haven't been looking into interlacing. I don't think it is hardware decoding feature. Can you upload the video sample, so I can better understand a problem ?
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-28
I'm playing the Jellyfish bitrate test. 400mbps 10bit 4K. Smooth as butter.
RE: Nvidia Jetson Nano, superfast Kodi device? - hashtag - 2020-07-28
(2020-07-28, 15:55)jaj2020 Wrote: I'm playing the Jellyfish bitrate test. 400mbps 10bit 4K. Smooth as butter.
A actually had performance issues with 400mbps. May be with external power supply it would have some more juice to pump. That is why in my initial post to this thread, I said up to 120 mbps.
RE: Nvidia Jetson Nano, superfast Kodi device? - jaj2020 - 2020-07-28
Hey,
The Nano is hooked up to a freaking cell phone charger and it works... :-)
As long as you don't have peripherals connected - it should be fine.
One last thing, do you have any clue regarding hdmi-cec? Couldn't get it to work from the Nano.
It's the last missing piece of a terrific media center.