Modded ROM's for Tronsmart R68 "Tronsplant your ROM"

[lonix]

lonix

Well another question for you. My remote controller. mouse nor keyboard will not function in TWRP until I power the USB port either USB from PC to device or a powered USB hub, but controller still does not function. Is there something you tweak in the kernel to get the controller and USB to work in TWRP or is the TWRP source version modified and re-compiled for Tronsmart?

Thanks

Hey, does the lonix kernel logo show up when you boot to TWRP?

If so

Flash this first
https://mega.nz/#!PF5FSZZT!NVfNaI000...i_5n40MnhbcLxU

Then flash the boot.img from 1.0.38 again

[ukmark62]

Hi ukmark62,

In previous versions of ZDMC I noticed that the sound is played with the original speed (without any modification), and the video frames were adjusted (e.g. corrected in every e.g. 40 second) to the audio stream. That resulted in little varying lag between the video and the audio. The eaxct solution would need to play the video with the most accurate framerate, and resampling the audio to get the accurate synchrony between them.
Probably, the video decoding were done by the hardware module of the SoC, and the audio play was realized by software decoding. the audio lag vas approx. 0.3 sec (8-10 frames) in this way. The lag is different from video to video, depending on the video encoding system and the resolution of the video file.

In the latest ZDMC it seems, the video decoding they have moved into a software solution, which would allow them to correct the lipsynch. Maybe, however, the only difference is that software video decoding takes more time than the hardware solution, and so the lag seems being lower. The difference between the decoding times of the different video files is probably remained, anyway.

Otherwise, there is not clear to me, if a TV sets supports 24 fps HDMI input, is it 24fps in real, or 23.976 fps actually? Maybe two TV sets work differently. Who can check that exactly? Did you see a TV set with 23,976 fps support?

Thanks Stzo,

The lack of smooth 23.976p playback on the rockchip is my number 1 issue with it. Once you see 23.976p played back smoothly (without any micro-stutter) at 24hz (as on Amlogic S812 for example), you don't want to go back to setting auto refresh off and setting screen resolution to 1080p/60Hz - the difference to me is huge.

I know that Minix have fixed this for their devices. I'm not an expert in this area at all - reading through a lot of the posts on the web indicate that Rockchip will have to fix their SDK to get it to work. I also read somewhere that a mod to the Kernel might solve this - hence my ? to lonix. Apparently Amlogic also had this problem initially and had to fix their code to allow it - I am guessing that they speed up the audio/video by 0.1% (23.976/24 * 100 gives 99.9%)

Still, there has been an improvement, but I still notice it in certain scenes.

[Stzo]

Thanks Stzo,

The lack of smooth 23.976p playback on the rockchip is my number 1 issue with it. Once you see 23.976p played back smoothly (without any micro-stutter) at 24hz (as on Amlogic S812 for example), you don't want to go back to setting auto refresh off and setting screen resolution to 1080p/60Hz - the difference to me is huge.

I know that Minix have fixed this for their devices. I'm not an expert in this area at all - reading through a lot of the posts on the web indicate that Rockchip will have to fix their SDK to get it to work. I also read somewhere that a mod to the Kernel might solve this - hence my ? to lonix. Apparently Amlogic also had this problem initially and had to fix their code to allow it - I am guessing that they speed up the audio/video by 0.1% (23.976/24 * 100 gives 99.9%)

Still, there has been an improvement, but I still notice it in certain scenes.

Hi,

I don't really understand why you say that you has to change the refresh rate settings both in KODI and Android. When KODI finds that the framrerate of the movie is identical to the actual settings, it does not do anything. Only if they are different, will change the setting accordingly. If you do not trust in KODI's decision, you may set the framerate in the Android settings to 24, that's all.
If the framerate that KODI sets is not correct, you may help it with adding the advancedsettings.xml file, where you can instruct KODI how to choose the framerate for the specific movie. Did you install an advancedsettings.xml file?

[ukmark62]

Hi,

I don't really understand why you say that you has to change the refresh rate settings both in KODI and Android. When KODI finds that the framrerate of the movie is identical to the actual settings, it does not do anything. Only if they are different, will change the setting accordingly. If you do not trust in KODI's decision, you may set the framerate in the Android settings to 24, that's all.
If the framerate that KODI sets is not correct, you may help it with adding the advancedsettings.xml file, where you can instruct KODI how to choose the framerate for the specific movie. Did you install an advancedsettings.xml file?

Hi Stzo,

I have auto refresh switching turned on. Kodi/ZDMC always correctly switches to 24Hz when either a 24p or 23.976p file is played back, or to 50Hz when a 25p UK tv show is played back. However, playing back a 23.976p movie on the Rockchip causes a micro stutter every 40 seconds or so. You can't always see the stutter - depends on the scene - I play back the Hobbit:An Unexpected Journey and you can see the stutter in a lot of scenes during the movie - it happens very quickly - easy to miss. Other parts of the movie you don't see it as there is little movement in the scene when the 40 seconds comes round.

There used to be a setting in Kodi called "sync playback to display" which helped where a 23.976p file was playing back at 24Hz. When I had version 13 or 14 (can't remember exactly), you could see the effect when pressing "o" on your remote during Kodi playback, where Kodi was speeding up the video and resampling the audio to avoid the 40 second stutter and it worked well (screen showing this:- http://kodi.wiki/view/Codecinfo) - the last line showing "S(refresh 24.000 etc.... only appears when you have "sync playback to display" enabled). However, those old versions of Kodi can't handle a lot of my HEVC files (link as FYI:- http://forum.kodi.tv/showthread.php?tid=219796 - there's an explanation by "Noggin" on this page which is very clear). I believe around release 15.2 of Kodi, this option was removed for Android - and if it's still there it does not appear to do anything now.

The only way to avoid the 40 second stuttering with 23.976p that I know of on Rockchip devices, is to set auto refresh rate switching off in Kodi and the movie plays back at your default Android setting (1080p/60Hz or whatever - mine is 60Hz). The micro stutters go away but you get pulldown judder when panning scenes are played back (just a link as an FYI:- http://whatis.techtarget.com/definit...wn-32-telecine). I never noticed this pulldown judder at first, as I had always set refresh rate switching off and became accustomed to playback of everything at 60Hz.

However, when I purchased an Amlogic S812 box, and turned refresh rate switching on, the playback of 23.976p files was buttery smooth at 24Hz - pans were amazingly smooth. So I always leave auto refresh rate switching on now. Works perfectly on my Amlogic S812 device - not so on the Rockchip - yet.

Cheers.

[ukmark62]

Hi,

I don't really understand why you say that you has to change the refresh rate settings both in KODI and Android. When KODI finds that the framrerate of the movie is identical to the actual settings, it does not do anything. Only if they are different, will change the setting accordingly. If you do not trust in KODI's decision, you may set the framerate in the Android settings to 24, that's all.
If the framerate that KODI sets is not correct, you may help it with adding the advancedsettings.xml file, where you can instruct KODI how to choose the framerate for the specific movie. Did you install an advancedsettings.xml file?

Hi Stzo,

Kodi always sets the refresh rate correctly. The only issue I have is that playback of 23.976p files on a TV set to 24Hz frequency causes micro-stutter every 40 seconds on the Rockchip. Amlogic S812 does not have this stutter. To avoid the stutter on Rockchip, I would have to turn off auto refresh rate and leave the TV frequency at the android/kodi default of 60Hz - but then you get 3:2 pulldown judder.

[androidfr33k]

Hey, does the lonix kernel logo show up when you boot to TWRP?

If so

Flash this first
https://mega.nz/#!PF5FSZZT!NVfNaI000...i_5n40MnhbcLxU

Then flash the boot.img from 1.0.38 again

Thanks that tool care of the USB problem. The remote is still not working but have not tried it in your stock TWRP I updated to 3.02 Beta which should work on all RK3368 devices but it was posted in the Geekbox forum so that could be why.

So is this the 1.0.38 kernel and resource file because I did not find that from the Zidoo 1.0.38 update zip file only the boot.img. If they are from the 1.0.38 I am curious as to how you extracted them? Only the power button functions and that brings up swipe to lock so it must be something with v3.02 beta. I'll try the original one you supply. I have to see if there a a zip update version making it easier on me to not have to burn the entire image again.

Thanks!!

[shivattaque]

i,
try this episode with Kodi bitstream ( HDMI ) and called me when the sound work for you (on your amp )

[https://href.li/?http://uptobox.com/yj2dckv0a9wa]

home I have no sound works with bitstream and decoding in hardware works but in stereo.

[shivattaque]

For KODI 16.1.1
this is the best version you have done but the DTS always jumps around every 20 minutes.
(v9-5)
I68G

[lonix]

Thanks that tool care of the USB problem. The remote is still not working but have not tried it in your stock TWRP I updated to 3.02 Beta which should work on all RK3368 devices but it was posted in the Geekbox forum so that could be why.

So is this the 1.0.38 kernel and resource file because I did not find that from the Zidoo 1.0.38 update zip file only the boot.img. If they are from the 1.0.38 I am curious as to how you extracted them? Only the power button functions and that brings up swipe to lock so it must be something with v3.02 beta. I'll try the original one you supply. I have to see if there a a zip update version making it easier on me to not have to burn the entire image again.

Thanks!!

The kernel in the zip file is from 1.0.33 I posted it a long time ago, but normally zidoo uses the kernel and resource from boot.img. only TWRP users the kernel and resource from the kernel and resource partitions, so it doesn't matter that they're older.

I extracted them using Linux rockchip tools unmkbootimg

[Stzo]

Hi Stzo,

Kodi always sets the refresh rate correctly. The only issue I have is that playback of 23.976p files on a TV set to 24Hz frequency causes micro-stutter every 40 seconds on the Rockchip. Amlogic S812 does not have this stutter. To avoid the stutter on Rockchip, I would have to turn off auto refresh rate and leave the TV frequency at the android/kodi default of 60Hz - but then you get 3:2 pulldown judder.

The 3:2 pulldown is much more disturbing to me than a short jump of the video in every 40 seconds. I tried to leave the refresh rate at 60 fps, but the result is a continuously stutterig image (two times in a second) of the fast moving objects. I'm not sure why, but my Panasonic TV set gives me perfect video play of almost any movies, I cannot feel problem with such micro-stuttering that you describe. I use the attached advancedsettings.xml file:

advancedsettings_extended.xml.pdf

(Please rename it before installing.)

[ghanashyaml]

Just to confirm:
1. ver9-rev5 also installs TWRP on first boot
2. when flashing ROM, I should use kernel.img and resources.img from my stock Tronsmart ROM.

Right?

[ukmark62]

The 3:2 pulldown is much more disturbing to me than a short jump of the video in every 40 seconds. I tried to leave the refresh rate at 60 fps, but the result is a continuously stutterig image (two times in a second) of the fast moving objects. I'm not sure why, but my Panasonic TV set gives me perfect video play of almost any movies, I cannot feel problem with such micro-stuttering that you describe. I use the attached advancedsettings.xml file:

[ATTACH]n582541[/ATTACH]

(Please rename it before installing.)

I agree - 3:2 pulldown is awful and the 40 second hiccup is the lesser evil of the two. The micro stuttering every 40 seconds sometimes is not noticeable. As in my previous post, the best movie to see it for me is Hobbit:An Unexpected Journey where there are lots of sweeping panoramas. When you have a lot of this vertical and horizontal panning, that's when the stutter is most noticeable. However, the strange thing is that the stutter is a lot less now (v9.5) than it was using stock Android firmware or in earlier releases of this rom. I'm aware that Rockchip are developing their own Kodi fork for Android (called RKMC) link here:- https://github.com/JamesLinEngineer/RKMC and Zidoo have their own version of Kodi (ZDMC). I managed to find and download RKMC's version here:- http://freaktab.com/forum/tv-player-...hed-by-geekbox. Apart from the splash screen, it looks identical to ZDMC - so I'm thinking that Rockchip are starting to work together with companies like Zidoo to iron out all the issues. I still get the same results with Kodi, RKMC and ZDMC - but the stutter is a lot less noticeable now.

If I didn't have the perfect playback of the Amlogic S812 to compare with, I'd probably not notice so much.

Maybe your TV has some software that synchronizes 23.976p to 24Hz or it could be that your TV has a 23.976Hz setting, so that would allow perfect playback. What year and model is your TV? I have 2012 Panasonic Plasma TX-P42X50B (gives a great picture!)

I've previously tried the advancedsettings in Kodi to mess with refresh rate settings with no effect - however, some of your settings are new to me (audiodelayrange for one). I'll give them a go and let you know.

One thing I haven't tried is to disable hardware acceleration and let software decoding take care of playback. I'll give that a go too.

Cheers.

[lonix]

Just to confirm:
1. ver9-rev5 also installs TWRP on first boot
2. when flashing ROM, I should use kernel.img and resources.img from my stock Tronsmart ROM.

Right?

Stock kernel from 209L probably won't work with this ROM unless you build GPU driver as a module and put it in /system/lib/modules

I haven't tried this personally but in theory it's possible.

Do you have 100mb tronsmart?

[dhruvcasper]

Hi,

this is to confirm that i used 9.5 version rom on Beelink i68G and it works fine. Just 2 issues if i can get help. I am facing still the stuttering issue in Youtube and second issue is in zdmc how to strech video settings to 16:9 as all the settings in OSD are not visible.

request help.

[ukmark62]

Hi,

this is to confirm that i used 9.5 version rom on Beelink i68G and it works fine. Just 2 issues if i can get help. I am facing still the stuttering issue in Youtube and second issue is in zdmc how to strech video settings to 16:9 as all the settings in OSD are not visible.

request help.

I can help with the second - firstly disable rockchip acceleration under RKMC tab and make sure mediacodec hardware acceleration is enabled. Then you will find you can access these settings. For some reason the rockchip codec does not allow access to the same settings that mediacodec does. If you want to go back to using rockchip codec, your screen should still be stretched - however I have turned off rockchip codec (intermittent audio sync issues) and just use mediacodec.