MK808B_digitopMod_v3.5.5 XBMC Edition (24 Dec 2013)

[phinc]

Also got an Antutu score of 12702, a little slower then the 'Digitop 3.5.5 Nov rom' as that rom is running at 1.6 Ghz and this kernel at 1.4 Ghz. You can always use a faster kernel, http://www.multiupload.nl/L2LWQ0N3GC that I made if you want. I included a 1.4Ghz kernel as it's more stable and won't cause more unsafe overheating.

I thought we all agreed in this thread (and also this one) that the overclocking does not work for mk808b kernels. Also tried one of your "1.6 Ghz" kernels and the highest frequency it reaches is 1,4 ghz on performance governor and 1,2 on all other governors, exactly like any other Android 4.1 kernel out there.

[ididmytime]

I thought we all agreed in this thread (and also this one) that the overclocking does not work for mk808b kernels. Also tried one of your "1.6 Ghz" kernels and the highest frequency it reaches is 1,4 ghz on performance governor and 1,2 on all other governors, exactly like any other Android 4.1 kernel out there.

Guess not... but yeah, there are no overclocking kernels for the mk808b, having the GPU at 400mhz would make it incredibly good value, shame that's probably never happening.

Everyone uses their device different though, I could rip holes in either Finless or the Minix firmwares as neither are particually better than the other.

I am not 100% sure it is built in, but getting the advancedsettings.xml and placing it in your XBMC data folder is absolute necessary to get a solid FPS for HD playback, it seems to have it's fair share of problems currently so have not tested if it is still needed. If you are having problems though I'd actually check to see if the video is actually being GPU decoded.

This has been discussed many times though in this forum, will be much easier when XBMC 13 becomes stable and we can just go official as libstagefright was added a few months back.

[freakoutguy]

HI Mo,

I currently have Finless 1.7 and justXBMC v2 on my mk808b original. I mostly use the mk808b for streaming live TV channels via XBMC, but get an external player active for some streams or some streams wont open via MX player.

My questions are -

1) If I try this Dec 24 rom, do I have to uninstall Finless 1.7 and XBMC?
2) Are the installation directions same as in the other digitop thread?
3) 720p is fine for me, do not need the 1080p. Therefore, do I need to replace any kernels or the file that you posted is enough?

[mo123]

HI Mo,

I currently have Finless 1.7 and justXBMX v2 on my mk808b original. I mostly use the mk808b for streaming live TV channels, but get an external player active for some streams or some streams wont open via MX player.

My questions are -

1) If I try this Dec 24 rom, do I have to uninstall Finless 1.7 and XBMC?
2) Are the installation directions same as in the other digitop thread?

1. Make sure you backup everything that you need.
It will erase everything on your device.
2. Yes. follow the instructions in the OP, very easy.
3. The kernel included is 720p & 1.4 Ghz and works fine.

[slcpunk]

mo123,

I;ve been watching your threads ( you're the man! ) ... interested in this ROM. I have the plain MK808.

2 questions:

1) The passthrough you speak of - that allows for HDMI passthrough - ie: DTS encoding during playback?
2) for the MK808, can you point me to the right kernels - I'm nervous about overclocking, unless its absolutely needed for the XBMC performance and works w/out extra heat sinking. ( I wasn't clear if it needed an OC'd kernel or that was just a bonus )

I have to say I'm fairly happy with the Feb 19th build of XBMC and 720p playback ... but I would like the HDMI out for surround sound...

thanks in advance

[mo123]

mo123,

I;ve been watching your threads ( you're the man! ) ... interested in this ROM. I have the plain MK808.

2 questions:

1) The passthrough you speak of - that allows for HDMI passthrough - ie: DTS encoding during playback?
2) for the MK808, can you point me to the right kernels - I'm nervous about overclocking, unless its absolutely needed for the XBMC performance and works w/out extra heat sinking. ( I wasn't clear if it needed an OC'd kernel or that was just a bonus )

I have to say I'm fairly happy with the Feb 19th build of XBMC and 720p playback ... but I would like the HDMI out for surround sound...

thanks in advance

To get passthrough working, you need this rom - http://www.freaktab.com/showthread.p...tick-13-Nov-13
You can use stock kernel and use NofrillsCPU to overclock to 1.4 Ghz if needed for above rom or use a 1-1.4 Ghz MK808 kernel with no other o/c for this rom, link included in OP.

[freakoutguy]

Too much hassle for me to reinstall this over Finless 1.7 + Just XBMC v2 on my Mk808b. Will this be exponentially better than my current set-up?

Can I just install the minix XBMC referenced in this ROM, on my Finless 1.7? If yes, any direct links to the minix XBMC apk?

[mo123]

Too much hassle for me to reinstall this over Finless 1.7 + Just XBMC v2 on my Mk808b. Will this be exponentially better than my current set-up?

Can I just install the minix XBMC referenced in this ROM, on my Finless 1.7? If yes, any direct links to the minix XBMC apk?

http://flumpster.lolcakes.com/android/XBMC-MINIX_BETA2_Test1.apk

Then follow instructions in post 7

[pe1dnn]

This has been discussed many times though in this forum, will be much easier when XBMC 13 becomes stable and we can just go official as libstagefright was added a few months back.

XMBC 13 is already reasonably stable. Try the combination of the latest official stock ROM (http://blog.geekbuying.com/index.php...808b-firmware/) with the XBMC Alpha 11 monthly (http://wiki.xbmc.org/index.php?title...#Monthly_build).

I could play a full 1080p movie, the best so far. This is the same XBMC which runs choppy at Finless 1.7. Still I had to go back to Finless 1.7, all of the Android 4.2 ROMs seem to have networking problems. We use an App from our national public broadcasting organization to view past programs and even live TV; this App does work on Finless 1.7 but has issues on any of the 4.2 ROMs I tried so far. Other streaming solutions seem to have the same problem.

So stock rom + latest XBMC monthly works (although not all 1080p material, for example the Monsters sample does not work) but streaming solutions fail; Finless 1.7 works with streaming but not with the latest XBMC unless you use an external player. Best would be Finless 1.7 with updates libstagefright, ffmpeg etc. modules. But newer versions are only available for Android 4.2. An Android 4.2 solution with networking just as good as Finless 1.7 would also be good, but since the RK903 WiFi chip is only supported by Rockchip itself I guess we can forget about that too.

Since mo123 seems to be the only one still posting MK808B ROM's and the quality seems to be doubtfull, I guess a good ROM will never appear any more.

[phinc]

Have you tried to use the stagefright libraries of the latest minix 4.1 roms on finless 1.7? I am using finless 1.7 with updated libstagefright files and ouya xbmc build and i never had any problems.

Sent from my GT-I9100 using Tapatalk

[pajopasa]

Where can we find the latest updated libstagefright and ffmpeg ???
I'm using a minix g4 4.1.1 rom and 2dark4u 1.4 kernel with my mk808.

[pe1dnn]

Have you tried to use the stagefright libraries of the latest minix 4.1 roms on finless 1.7? I am using finless 1.7 with updated libstagefright files and ouya xbmc build and i never had any problems.

I used the patched one by Rockchip first, then I moved on to a newer one delivered in one of the ROMs.
The original Finless 1.7 one:
- libstagefright.so: 2619920 bytes

The Rockchip patched one:
- libstagefright.so: 2599368 bytes

The one I use now:
- libstagefright.so: 26024024 bytes

But besides that new Minix roms have also new libraries for the Mali and newer ffmpeg versions, so only swapping libstagefright.so may not be enough. I didn't notice any changes between the Rockchip patched version (I think it was a guy named Herman or something on the XBMC libstragefright development thread who made that one) and the latest I ripped from some newer ROM. Anyway no success. If there is one that works I would love to hear it.

[phinc]

What is it exactly that does not work for you? I don't know which libstagefright file i am using right now but i could test your video file\ plugin with my setup when i come home next week.

Sent from my GT-I9100 using Tapatalk

[pajopasa]

I'm using the last 4.1.1 rom for minix g4 with the kernel 2dark4u 1.4 and i have no problems with xbmc playing files on my mk808
But i was wondering if there was a new updated files.
I will see the version of my libstagefright.so.

[pe1dnn]

What is it exactly that does not work for you? I don't know which libstagefright file i am using right now but i could test your video file\ plugin with my setup when i come home next week.

Sent from my GT-I9100 using Tapatalk

Rom: Finless 1.7 for MK808B, patched libstagefright.so (see above)
XBMC: monthly build: xbmc-13.0-Gotham_alpha11-armeabi-v7a.apk
advancedsettings.xml: see below (but also tested without, no change, not used with Minix version)
File 1: sample "Monsters" (Full HD) from http://www.auby.no/files/video_tests/
File 2: sample "Matrix" (simple XVID SD) from http://www.auby.no/files/video_tests/
Sample files downloaded to external SD card

Results for File 1:
- With media codec it runs okay for 5 seconds, then video slows down while sound continues
- With libstagefright interruptions and screen distortions
- Of course unusable using SW decoder

Results for File 2:
- Black (no) video with mediacodec
- Black (no) video with libstagefright
- Okay using SW decoder

So back to: xbmc-20130219-32e99c7-android-hwaccel-armeabi-v7a.apk

Results for File 1:
- With libstagefright very shuttering
- Of course unusable using SW decoder

Also: all XBMC versions before august have a problem in libstagefright causing it to massively start dropping frames after some time, for me it was after approximately 30 min, others reported an hour. This was fixed early november.

Results for File 2:
- Black (no) video with libstagefright
- Okay using SW decoder

There is also this XBMC Minix version mo123 linked to (and which to my surprise actually runs on Finless 1.7...):

Results for File 1:
- With libstagefright plays okay (this is the first time I see that with the Finless 1.7 ROM)
- Of course unusable using SW decoder

Results for File 2:
- Black (no) video with libstagefright
- Okay using SW decoder

Strange enough all of them have problems with the simple SD video but do not drop back to SW although this can easliy be handled by the SW decoder. By the looks of it, the Minix XBMC version works the best on Finless 1.7.

advancedsettings.xml:
------------
<advancedsettings>
<video>
<stagefright>
<!-- -1 is default, 0 is never used this codec, 1 is always use this codec, bypassing blacklist -->
<useavccodec>1</useavccodec>
<usevc1codec>1</usevc1codec>
<usevpxcodec>1</usevpxcodec>
<usemp4codec>1</usemp4codec>
<usempeg2codec>1</usempeg2codec>
<useswrenderer>false</useswrenderer>
</stagefright>
</video>
<network>
<buffermode>1</buffermode>
<cachemembuffersize>20971520</cachemembuffersize>
<readbufferfactor>4.0</readbufferfactor>
</network>
</advancedsettings>
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