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<clone147>
Hi Everyone. Does anyone here compiled GStreamer with MPP with plugins from Rockchip for Android and had hardware acceleration when making stream on RK3399 or RK3288 Android ? :-) I'm able to compile everything but have SIGSEV error when running. Someone told me that GStreamer with Rockchip is designed to run from Linux only ? Anyone can confirm?
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<LongChair>
lvrp16: ping ! :)
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<lvrp16>
LongChair: hi
<LongChair>
i'm looking to get Firefly 3328 to run on linux 4.4
<LongChair>
and most of all see how much DDR4 impacts the DDR bandwidth
<LongChair>
as well as latest u-boot and release-4.4 with rk3328_ddr_786MHz_v1.08.bin and rk3328_miniloader_v2.44.bin (same we use on other rk3328 devices that uses LPDDR3)
<LongChair>
the figures we're getting are pretty low, actually about half of what we get on rock64 in terms of memory bandwith
<LongChair>
about 400M/s vs 800 M/s
<LongChair>
so i was wodnering if you would have any other bootloader blobs / dts we could try ?
<LongChair>
lvrp16: any input on this will be much appreciated :p
<lvrp16>
LongChair: have you tried this on their images?
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<stdint>
clone147, no I think it would work
<stdint>
clone147, how do you compile it for the android?
<clone147>
I made it on Ubuntu, with cerbero, (it need some patience) GStreamer work (3399), but when compiled MPP and plugins and try to use accelerated encoder - SIGSEV error and no luck :-(
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<mmind00>
ayufan: looks like the gmac patch for rk3328 (thres-dma + delay values) I just found in your rock64 repo seems to fix the gmac issues I saw quite well ... care to submit it to mainline? :-)
<mmind00>
ayufan: with it I now see a quite stable 1Gbit on my rock64, so the max-speed=100 temp fix could go away again
<ayufan>
Yes, I will
<ayufan>
yes, it is stable
<ayufan>
I asked Pine team to cross check on boards in different scenarios
<ayufan>
With small quirks it also makes it PXE booting to work stable ;)
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<BenG83>
:)
<BenG83>
I can confirm the tuning the delay values works for my on pre-production Rock64 and production Rock64
<ayufan>
yes, I checked that too on pre-prod
<ayufan>
it works stable
<BenG83>
regardless using 4.4.x BSP or mainline
<ayufan>
on 4.4 and 4.15, so it is consistent
<ayufan>
and no ethtool -K eth0 tx off needed anymore :)
<BenG83>
we should just switch to 10GbE since that has autotuning of the differential pairs :P
<ayufan>
>:)
<LongChair>
lvrp16: is there any Linux image ?
<LongChair>
because android would run 3.1
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<Kwiboo>
ayufan: I have same eth issue on roc-rk3328-cc and adding thres-dma to dts solves it, havent tuned the delay values yet
<ayufan>
yeah, it seems that rk3328 is buggy on tx offloading, cannot handle 1500 mtu
<ayufan>
it requires my kernel with configfs for overlay (backported from RPI kernel)
<ayufan>
it works on 4.4 and 4.15
<Kwiboo>
thanks, will test later
<BenG83>
^
<BenG83>
can cofirm dt overlays speed up the process significantly
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<LongChair>
ayufan: do you have a firefly 3328 ROC ?
<ayufan>
nope
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<ayufan>
LongChair: should I get one? ;)
<LongChair>
heh, i dunno, we didn't get it to work as expected yet :)
<ayufan>
for hdmi? or eth?
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<ayaka>
clone147, I see, the problem is I didn't remember I put the rules for cerbero in gstreamer rockchip and rockchip mpp
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<Kwiboo>
ayufan: ddr bandwidth is not working as expected atm, using RK 4.4 and the ddr 786mhz v1.08 blob a simple hdparm -T test shows 400-500MB/s compared to 800-900MB/s on rock64
<ayufan>
hmm
<ayufan>
I don’t see params for DDR4
<ayufan>
either
<ayufan>
I assume that it requires different loader
<ayufan>
is it present in SDK from Firefly?
<Kwiboo>
I have not found any other, their linux images uses 4.4 kernel the ddr 786mhz v1.06 blob and has even worse speed, ~200MB/s, need to so similar test on android and 3.10 kernel, their 3.10 dts have custom ddr timings
<ayufan>
I guess that they don’t yet have DDR4 params ;)
<ayufan>
and yes, android reconfigures ddr with vfs