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[RELEASE] Official XBMC boblight Addon
Are you done with it? Would be cool to see how it looks with the lights mounted like that.

Im in the process of rebuilding my frame, but Im not quite sure how to mount the LEDs yet.

Its kinda hard to see the effect without having everything done and I dont really want to waste too many U-profiles.
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(2013-06-01, 22:02)blazo Wrote: This is beyond me.
Changed PSU, added capacitor (2 of them) and I still get flashes. Sad
The only remedy is speed=40 with rate=48000 or less.

I think it might have something to do with the timing, the WS2801 latches in the data when the clock pin has been low for more than 500 microseconds.
If there are lots of other threads on the raspberry pi that also want cpu, it's possible that the boblightd device thread gets preempted while it's in the middle of an spi write.

I've committed a patch which might help with this: http://code.google.com/p/boblight/source/detail?r=468
If you add the threadpriority setting to the device section in boblightd like this:
Code:
threadpriority 99
And then make sure that boblight has rights to enable SCHED_FIFO, check the threadpriority setting on how to accomplish this: http://code.google.com/p/boblight/wiki/b...onf#device

This way the scheduler makes sure that the boblightd device thread will immediately get cpu time when it wants, and it will continue to get cpu time until it is done processing.
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(2013-06-07, 20:36)TeKo Wrote: Are you done with it? Would be cool to see how it looks with the lights mounted like that.

Im in the process of rebuilding my frame, but Im not quite sure how to mount the LEDs yet.

Its kinda hard to see the effect without having everything done and I dont really want to waste too many U-profiles.

not now, i've got some work to do on it:

mount supprot frame
mount plexi behind led for colour diffuse.

but i think i 'll test it without before.
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Do you even need plexi with already diffuse LEDs?

Im finishing mine next tuesday so Im just going to hope you are done before that Wink
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i'll see that but if you look this picture, you'll see that led's heads are still in the "u", and it might produce some directional light, but the fact that the surface is mirroring should lower that.

Image

Image

can't really realize now.
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yea, never saw them mounted like that, that's why I was interested in a picture.


Sorry for asking again, but does the addon support over-under/sbs 3D? I cant find anything in the commits.
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and sorry, but i won't finish before you as i'm going on week end abroad ;-)

i'll see to continue it during the week.

i've got the idea of mounting them like that while i was talking with a coworker, then decide to test it.

i've wired it tonight, it work good, need to test it in place.

(2013-06-07, 20:36)TeKo Wrote: Its kinda hard to see the effect without having everything done and I dont really want to waste too many U-profiles.

yeah, i got that, in fact, the frame i use there was my firt attemp, but after drilling all holes, i've saw that i can get the led in... so build another one.

that's why i've launched this new frame for testing, and for people to see what they can do and how it show, and because, not the less,i'm taking pleasure in doing that.:-D
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(2013-06-07, 20:45)bobo1on1 Wrote:
(2013-06-01, 22:02)blazo Wrote: This is beyond me.
Changed PSU, added capacitor (2 of them) and I still get flashes. Sad
The only remedy is speed=40 with rate=48000 or less.

I think it might have something to do with the timing, the WS2801 latches in the data when the clock pin has been low for more than 500 microseconds.
If there are lots of other threads on the raspberry pi that also want cpu, it's possible that the boblightd device thread gets preempted while it's in the middle of an spi write.

I've committed a patch which might help with this: http://code.google.com/p/boblight/source/detail?r=468
If you add the threadpriority setting to the device section in boblightd like this:
Code:
threadpriority 99
And then make sure that boblight has rights to enable SCHED_FIFO, check the threadpriority setting on how to accomplish this: http://code.google.com/p/boblight/wiki/b...onf#device

This way the scheduler makes sure that the boblightd device thread will immediately get cpu time when it wants, and it will continue to get cpu time until it is done processing.

Hi Bob,
I was looking in the same direction. Smile Because the flashes weren't completely random after all.
Since I'm not quite comfortable with the code I just wanted to increase the pause to 600us.
I'll try your patch tonight if I get the chance. Big Grin
BTW RPi is running Raspbian Whezzy and not Occidentalis. I may try it with that one too.

@Memphiz: Sorry to hear that... BTW I'm also playing with another RPi w/ WS2801 pixels with OpenELEC and their version of boblightd. Unfortunately pixels are just off during video playback. I get initial color flash and pixels are illuminated (constant) in menus, but when video starts nothing happens.
I remember reading somewhere that I need a special build of XBMC plugin in order to get LEDs to work. Is it true? Is there something specific on the RPi so that plugin cannot se the video?

Thanks.
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Bob, unfortunately this patch didn't completely help.
Flashing pattern is a bit different though (frequently all of LEDs flash white and colored flashes only occur rarely).
Oh, and I could increase the speed a few notches in add-on. Smile
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You can try increasing the usleep in devicespi.cpp to 1000 or so, if that doesn't work then I don't know how to fix this, it's quite possible that the ws2801 will require a kernel module because it will latch after 500 microseconds of idle time.
It could also simply be that the 3.3 volt IO level of the raspberry pi just isn't high enough for the ws2801, officially it needs 5 volt.
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Hello,
i was running the boblight Addon for a while now without problems (even with full HD video) on my Celeron 847 with Intel HD2000 graphics.

Yesterday i installed new intel drivers with vpp support and the xbmc (test)version with vpp deinterlacing from that thread : http://forum.xbmc.org/showthread.php?tid=165707 to get a working deinterlacing on Intel graphics.

Unfortunately with boblight Addon enabled, i noticed a lot of drops and fps between 25-35 with deinterlacing enabled on LiveTV.
I deactivated boblight Addon and switched to boblight-X11 and everything is working fine now.

Is there a way to get the Addon and vpp deinterlacing to work together ?
I now, the Celeron and HD2000 graphics are not a powerful combination but boblight-X11 is doing the job.

Full xbmc log : http://paste.ubuntu.com/5745589/

regards
gebnix
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Does anyone have a good video to test boblight?

Something so I can adjust the colors.
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https://www.google.fr/url?sa=t&rct=j&q=&...3778,d.ZGU

is it good for you?
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Thanks.

I dont think this is that good for boblight because it has the gradient on the edge.

I found this: http://www.youtube.com/watch?v=sr_vL2anfXA
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good thanks !
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[RELEASE] Official XBMC boblight Addon3