Showing posts with label preview. Show all posts
Showing posts with label preview. Show all posts

Friday, 16 October 2015

[Q] Installing Android M OTA manually on Android M preview



Currently my Nexus 5 is on Android M preview. I am trying to manually install OTA of Android M public release, but I get these errors on 50%:

failed to verify whole-file signature
signature verification failed Installation aborted

device details:
no root
no custom recovery
just bootloader unlocked
no changes in system files

Does manually installing Android M final release OTA work on device running on Android M preview? Or do I need to downgrade it to Lollipop first?

thanks!



Friday, 9 October 2015

Android M Preview for Lenovo P780 (ROW)



I present to you a preview ANDROID-M. Rooted. Android M launcher, Camera, Photos. It took bauuu a long time to create it that way for our phone. " I will not talk much about it, but it works. Very good battery life, smooth, stable and suitable for daily use. There are additional settings in the options of the developer. See terms batteries (not one of gravitybox). Dynamic status bar, the new settings interface. The first launch will take more time, and the phone will restart automatically after. Just be patient, until you see the main screen. It Multilingual firmware" - bauuu.
After installation, restart once to fix problems with the display memory. With kernel BINDU.

Downloads:
ROW Markup :- https://yadi.sk/d/yjAWBhzwjJEJC

CN Markup :- https://yadi.sk/d/XjAPYEjzjHyEY

For "pure HD graphics" tweak" , flash zip from attachment. Improves GPU rendering performance without affecting battery life. It is tweak specially build for MTK devices.

For enhanced sound quality you can try "viper4android" app and move that app to system so that it is processing without being killed.

Unique Features you can Experience:-

* ART (activated ART instead of dalvik ( developers menu) & still not encountered any issues )

* Android M Boot animation

* Lollipop like recent apps ( mainly, quickly switches between huge again saying huge apps )

* Antutu Benchmark - 15858 ( I personally do not follow antutu completely because it shows that our device ( lenovo p780) only surpasses 50 % in battery performance. What to say ?

* Crosses 3S criteria :- Smooth, Stable & Speed.

* Great Multitasking ability for proof see screenshot.

( chrome - huge ram user, MX player, OfficeSuite pro, WhatsApp, better camera pro, es file explorer, play music, gmail & quickpic gallery - all these apps were opened & was able to multitask without any drawback )

* Also great battery life because when it sleeps it saves battery to large extent :-See screenshot.

* Dynamic Status Bar just like chameleon - Enjoy the colours while surfing colourful webpages.

* Use Seeder for complete lag reduction.

* Also gives option to delete screenshot in status bar - one of features of Android M as told by google in I/O.

* 16 MP image capture ability + HDR working.
To experience follow below steps :-
1) Install better camera apk.
2) convert it to system app using titanium backup.
3) uninstall google camera because panorama features does not work with it, but it works with better camera app - ( most highly recommend camera app by professional photographers).
4) Enjoy HD image capturing because HDR feature creates 11 MB size photo.
5) optional - use quickpic gallery app for faster access to your images.

Patches :- (Camera fix 8-2014) I think any patch is able to fix the problem on the camera's new Chinese versions. Since I did not CN 4GB phone, I can not verify it. Try it and if it does not write to the QMS. You can find file on other forums.


I am greatly thankful to bauuu for his development of such a unique rom. Also warm regards to AndreyZo and Andreya108 for their huge development in development of lenovo p780 (A super mini computer but with huge battery life).

Below are some screenshots :-
Attachment 3500767 Attachment 3500768 Attachment 3500769 Attachment 3500770

Attached Files :-
Attachment 3500774
Attachment 3500782
Attachment 3500775







Thursday, 8 October 2015

Permissions set to deny for all apps and unable to grant (Preview 3 -> 6 factoryflash



I flashed 6.0 factory image (no wipe) over unrooted preview 3 and now all the apps are crashing because all the permissions were changed to deny for every app.

If I go to an app's permissions and grant them, it does not stick, but goes back to deny. This includes all the system apps.

Only an update or app reinstall from the Play store grants (restores) the permissions for that app.

Any ideas? Not a newbie. I'm going to try to fix this on my own if I turn out to have gotten a bad flash.



[Q] FXP android M preview






How to reduce Android camera preview latency to 60ms or less



I am developing a camera application were I need to display the camera preview without conceivable latency, so when the user looks at the world and the preview together he shouldn’t conceive a time gap between them.
Every frame needs to be scaled, flipped, rotated and overlaid with a small image before being displayed but all these manipulations add less than 1ms to the computations so no problem there.
The minimal latency I measure on my app, on some example projects and on the built-in camera is 120ms (tested on Note4, Galaxy 4 etc) which is definitely noticeable.
I must reduce it to 60ms. The best frame rate I managed to get is a stable 31 fps. I tried both the old Camera API and Camera2 API both with SurfaceView and TextureView.
The app needs to run only on a single phone model which is based on the Snapdragon 615 SoC and the OmniVision 13850 camera running OS 5.0.2. I need to display the preview on a 1080x608 area of the display. So there is no shortage of CPU power, as can be seen from the attached Systrace the processor is idle most of the time:
https: // drive.google.com/open?id=0B780awz-gp4URDFPXzBNRVMwa0k
https: // drive.google.com/open?id=0B780awz-gp4UVEE2NGRmbEJPdlU
GPU profiling shows me that rendering is well below the 16ms mark. The 13850 can provide 30, 60 and even 120 fps.
If I understand the problem correctly, the limit comes from the camera VSync being capped at 32ms (to a maximum of 30 fps) by the Android system (maybe in the kernel drivers) or from the 13850 configuration.
According to Google Android is using triple buffering so at 32ms that’s 96ms which with some overheads can explains the 120ms.
I assume that if I could increase camera preview fps to 60 my latency will drop to 60ms.
There are many discussions how to achieve 60 fps for drawing graphics on the display but I can’t find much about getting 60 fps from the camera preview.
Is my assumption correct?
How do I decrease the camera preview latency to 60ms? (It’s a dedicated device so I am allowed to make changes to Linux and drivers).
Which files do I have to investigate?
Thanks



Wednesday, 7 October 2015

Preview 3 to release OTA available?



I have searched this forum topic and did not see any mention of a Marshmallow Release OTA for those running the M Preview 3. Not sure I want to risk things by not flashing some of the image files. Suggestions appreciated.



Tuesday, 6 October 2015

Stuck at start of boot after flash-all.bat flash from android M preview



This time I tried the flash-all.bat file. I did not notice big problems during the flashing process, (it mentioned missing .sig files). When flash-all.bat finished, I scrolled up to Recovery using the volume keys, hit the power key, and the screen changed to the first part of the boot sequence, the black screen with Google at the top and a small unlocked lock sign at the bottom... And there it has set for the past hour :(
It does not seem to connect to the usb port anymore, so I don't know where I go from here.
I have flashed factory images on my Nexus 6 several times, including each of the recent developer previews. I always used the fastboot commands. The bootloader is unlocked; the phone is not rooted, it was running preview 3.

Uh, what next?