[Q] Flickering background in video playback! - Samsung Galaxy Nexus

Hey!
I hope this question hasn't been already been posted and answered. Only recently I got my Galaxy Nexus and so far I'm seriously in love :laugh: On thing that bugs me though, is the crappy video playback, whether on YouTube or directly played from the internal storage. There's always a lot of background artifacts and noise where's only supposed to be a plain color, e.g. black (compared to playback on a PC or other devices). Could someone play this video (search on YT for Perfect Balance Pedal, first video from 0:14 on) on their Gnex and report if they face the same problem or have a solution? Thanks a lot!

I don't have any bug like that..
I'm using JB ROM and with stock ICS ROMs I didn't have that problem too..
Are you using stock ROM with stock kernel, or..?

mindfever91 said:
Hey!
I hope this question hasn't been already been posted and answered. Only recently I got my Galaxy Nexus and so far I'm seriously in love :laugh: On thing that bugs me though, is the crappy video playback, whether on YouTube or directly played from the internal storage. There's always a lot of background artifacts and noise where's only supposed to be a plain color, e.g. black (compared to playback on a PC or other devices). Could someone play this video (search on YT for Perfect Balance Pedal, first video from 0:14 on) on their Gnex and report if they face the same problem or have a solution? Thanks a lot!
Click to expand...
Click to collapse
Never experienced this issue. However, since it's occurring on both videos contained in memory as well as streaming services like YouTube, it's not likely an issue with the connection. The only thing I can come up with is something in your graphics drivers (hopefully) or GPU (hopefully not) is messed up. Have you tried downloading all of the stock software, checking md5sums and reflashing stock?
If a fresh and clean install of stock continues to have this issue, it may be an issue with the hardware and may need to be replaced.

Thanks for the quick reply! I'm currently on mike1986's Android Revolution 5.01 (JB) with Trinity Kernel, but I don't think the problem relates to that because I previously got this on stock 4.04 also. So it could just be a defunction of my screen?

mindfever91 said:
Thanks for the quick reply! I'm currently on mike1986's Android Revolution 5.01 (JB) with Trinity Kernel, but I don't think the problem relates to that because I previously got this on stock 4.04 also. So it could just be a defunction of my screen?
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An issue with the GPU blobs / GPU itself or possibly the CPU is more likely than the screen itself. If there was an issue with the screen you would likely see problems outside of video playback.

Related

Trinity HTC Camera Problem

Maybe lots have come across the video playback problems with the HTC Trinity - the annoying green screen instead of the video playback.
I've recently realized that all the problems are caused by the HTC Camera. The video files are being played smoothly until you start the camera.
Upgrading the camera program didn't help. Is there anything I can do to solve this issue?
osavioro said:
Maybe lots have come across the video playback problems with the HTC Trinity - the annoying green screen instead of the video playback.
I've recently realized that all the problems are caused by the HTC Camera. The video files are being played smoothly until you start the camera.
Upgrading the camera program didn't help. Is there anything I can do to solve this issue?
Click to expand...
Click to collapse
i think that you must change your software rom ... it must be a codec problem ...
I've tested several roms (WM5 & WM6) - every time the problem is identical - I've never had a ROM with proper video playback. I thought that this is common issue until I realized that the camera software caused it.
I don't understand what do you mean by video files are being played smoothly until you start the camera...
why do you start your camera if you're playing your videos?
No ... I usually don't watch videos while taking pictures
I watch videos ... everything is cool ... then close player ... than start camera ... taking photos etc. ... I close the camera ... if I want to start watching videos again - I can't.
Does anyone have solution?
I had the same problem as you but i never managed to track down what i did differently each time for the green screen, all i knew was that if i watched a video, i knew i would have to restart because otherwise ALL videos would show the green screen. I have solved the problem now by just updating my Coreplayer/TCMP player.
Have you found another cure yet?
jab1a said:
I have solved the problem now by just updating my Coreplayer/TCMP player.
Click to expand...
Click to collapse
I use latest version of both ... this does not solve the problem (at least my problem )
Oh no, i thought that would of fixed it. I guess i havnt used mine enought to discover its still bad. Lets hope someone finds a cure
Thank you in advance
Unfortunately it turns out (this is just my opinion of course) that the cure will be new camera application or new video driver.
Who will do it ... HTC genius engineer stuff ... I don't think so ?
Just think of the problems with TyTn II users and guess when this will happen

[Q] Video playback on GN (compared to the Note)

There's a thread over in the Note section about poor black rendering in some videos. Could someone try out the sample on the Nexus and see if that too shows the same artifacts? The clip is here:
http://www.mediafire.com/?53da859r2gu8b8q,p4zi4js5g42uxu4
Trying to determine if this is specific to the Note, the screen, or possibly poor software/codec rendering...
* Bump *
I havent seen any other discussion about this based on the search terms I've used and some people said that the Nexus also suffers from the same issue.
Can anyone perform some testing ?
http://www.mediafire.com/?qd2a1d8jm18vvbs
Use the stock player (HW acceleration mode)
Set the screen brightness on the player to lowest
View in a dark room to avoid any distraction from reflections, viewing this with ambient light actually makes it less problematic.
Post results.
I've downloaded video from first post but video player refuses to play it, sorry. But i was able to play above posted .mkv file and yes, picture looks pretty bad in very dark areas. I don't think we can change anything, that's how our SAMOLED works.
Sent from my SuperGalaxy SuperNexus!
MS. said:
I've downloaded video from first post but video player refuses to play it, sorry. But i was able to play above posted .mkv file and yes, picture looks pretty bad in very dark areas. I don't think we can change anything, that's how our SAMOLED works.
Sent from my SuperGalaxy SuperNexus!
Click to expand...
Click to collapse
Thanks for trying the video above, other SAMOLED devices display it video w/o any issues.. Like the Samsung Wave , Galaxay S1 and Galaxy S2.
What bothers me though is that on some Galaxy Note's with the very same settings and scenario above it has far lesser issues.
Im actually surprised this is not covered on the Galaxy Nexus sub forums, maybe no one watches HD movies on a 4.65" screen ?
More feedback from users would be nice so samsung can take a look at this issue.
I have seen this on several videos. I thought it was because of codec but realized did not happen on any other device i had.
Sent from my Galaxy Nexus using Tapatalk
Android 4.0 does not have native .mkv support like TW devices. It has the ability to hardware decode because the OMAP4460 chipset can decode it but after the update to 4.0.2 divx support was removed for some reason.
4.0.2 changelog:
Device features
Optimized Mobile Hotspot when used with VPN.
Optimized 3G/4G data sessions for faster response times.
Fixed an incorrect notification that “data was disconnected due to roaming”.
Wi-Fi now automatically reconnects when returning to a known Access Point.
Improvements to special visual effects feature when using front-facing camcorder.
Visual improvements to the lock screen.
Email & messaging
Fixed an issue where some email attachments would not open correctly.
Apps & Widgets
DivX support has been removed, and will be supported in a future upgrade.
Improved audio volume in Google navigation turn-by-turn directions.
Try it with mVideo or Dice player, it should work.
Any of the many good video players should work.
MX Video Player even has dual-core support...
I've definitely noticed this about the Nexus screen. I don't know if it's as bad as the Note or not, but I started a couple of huge threads on android forums (some reference the Note thread, so there may be a circular reference thing going on ):
http://androidforums.com/samsung-ga...ing-effect-nexus-other-hd-amoled-screens.html
http://androidforums.com/verizon-ga...ifacts-black-areas-during-video-playback.html
I would love to know if there are any workarounds or if supercurio will be able to help the Nexus owners similar to what he's doing for the Note.

[Q] Youtube playback grainy/pixelated after flashing IncrediblyParanoid?

Hey guys,
Forgive my ignorance, as I have searched high and low for any information on this, but I was running TazzSense 3.6 for quite a while with no major issues other than some lag that may have been more due to the apps I had installed, and on that ROM the video playback, including youtube in HQ, was clear and great. I tend to watch a lot of youtube videos. Yesterday, because I wanted to try it out, I flashed the latest Incredibly Paranoid after doing the super duper wipe and everything seems to be working great and I love the interface.
However videos on youtube seem pixelated and grainy even on HQ, compared to the old ROM. This seems to be isolated to Youtube or perhaps flash videos because other videos seem to be fine, but playing youtube videos through the app or a browser looks a bit off. I tried turning HQ off (looks worse obviously) and back on again. I also tried messing with all the combinations of Paranoid settings, which changed the look of the UI but not the video playback. I seem to notice a few rows of black pixels to the top and bottom of the video; it's my understanding that these videos are 480p in HQ, so in my mind should fill the screen, could something be scaling vertically slightly and causing the degradation in quality? Are there any other things I could check on? Any input greatly appreciated; if this belongs somewhere else please forgive me.
Yeah that's a bug in older job kernel. Wait for either new cm10.1 or pa jb4.2 or flash evervolv with new 3.0 kernel.
Sent from my ADR6350 using xda app-developers app

1080p Playback on Beanstalk 4.4.278

My Acro S is running Beanstalk 4.4.278. Great rom so far but 1080p playback (specifically on MX Player) does not work. Freezes and reboots my phone when I try. 1080p recording with latest Google Camera works like a charm but its frustrating I can't view any of them. I haven't tried playback on any other video players though. I removed the video player that came with KitKat or the rom btw so I can't try that too.
Any help or advice?
2k14 said:
My Acro S is running Beanstalk 4.4.278. Great rom so far but 1080p playback (specifically on MX Player) does not work. Freezes and reboots my phone when I try. 1080p recording with latest Google Camera works like a charm but its frustrating I can't view any of them. I haven't tried playback on any other video players though. I removed the video player that came with KitKat or the rom btw so I can't try that too.
Any help or advice?
Click to expand...
Click to collapse
Just tried it (since I had never tried it before you mentioned it) and it works fine. The video is a little juttery, but I can live with that.
Running BeanStalk v4.4.285, on the same phone.. Kernel is 3.4.0-Evovle-v1.11+ [email protected]
I think you might want to upgrade to the latest version - that might fix it.
darkguset said:
Just tried it (since I had never tried it before you mentioned it) and it works fine. The video is a little juttery, but I can live with that.
Running BeanStalk v4.4.285, on the same phone.. Kernel is 3.4.0-Evovle-v1.11+ [email protected]
I think you might want to upgrade to the latest version - that might fix it.
Click to expand...
Click to collapse
Thanks for answering
Any notable bugs on 4.4.285? I might upgrade if that will fix the playback problem and if there aren't any annoying bugs..
2k14 said:
Thanks for answering
Any notable bugs on 4.4.285? I might upgrade if that will fix the playback problem and if there aren't any annoying bugs..
Click to expand...
Click to collapse
There are two that are a bit annoying (again, not everyone has these though, so you might get lucky).
1. Sometimes when a call comes in, the screen will either stay blank and take a while to light up (by which time the caller has hang up)
2. Sometimes streaming a video online (with any player, not just MX) will crash and force the device to reboot when you try to exit watching the video.
These are the two major issues that I find on my phone. Never the less, I still prefer this version to stock, so I have been using it for more than a month now and I am very happy.

Tab S 10.5 YouTube Video Stuttering

Hi guys, I recently bought a galaxy tab s 10.5 and I'm having issues with video playback in the native YouTube app. Basically every 5-10 seconds, I would get a micro stutter, as if the video is slightly jittery. It's definetely not buffering as the video has loaded well ahead already too.
I am using the samsung stock OS so 4.4.2 and I have installed all the latest official updates for both the OS and the Youtube app.
I have also tried a factory reset of the machine, clearing the cache and updates for the Youtube app and reinstalling. I've also tried forced GPU rendering and turning off hardware overlays in developer mode
Does this indicate there's an issue with my hardware ? It does not happen when i stream videos from my PC over wifi or any locally downloaded videos. Any help would be appreciated. Thanks.
Hmmm, never had this problem with mine when it was on stock. I usually had this problem when I underclocked my cpus and all that or when I am using to many appps.
The only thing I can suggest is use another app (viral popup https://play.google.com/store/apps/details?id=com.Mata.YTplayer ) or take it back to be safe.
DUHAsianSKILLZ said:
Hmmm, never had this problem with mine when it was on stock. I usually had this problem when I underclocked my cpus and all that or when I am using to many appps.
The only thing I can suggest is use another app (viral popup ] ) or take it back to be safe.
Click to expand...
Click to collapse
Thanks, yep the youtube videos would stutter even when i freshly restarted the tablet so nothing else really is running in the background. I have tried the viral popup app except it seems to play at a really low quality setting, ,ie 1080p is not available ?
Is there anything I can test to see if its a possible hardware issue ? I ran the Antutu benchmark and got 37k which seems in line for what's expect from this tablet. Does this help rule anything out ? Thanks.
Check processes, there's probably something in the background.
lagstream said:
Thanks, yep the youtube videos would stutter even when i freshly restarted the tablet so nothing else really is running in the background. I have tried the viral popup app except it seems to play at a really low quality setting, ,ie 1080p is not available ?
Is there anything I can test to see if its a possible hardware issue ? I ran the Antutu benchmark and got 37k which seems in line for what's expect from this tablet. Does this help rule anything out ? Thanks.
Click to expand...
Click to collapse
I dont think so. When you play games does it lag too? Ex real racing 3 etc? Because if it cant play youtube without the micro lag, that may affect other apps. I dont get any lag while I was on stock.
If any other apps lag while playing (not on loading screens) then it may be an issue. I never had any micro lag on mine so it may vary on how you see it. Of course we have custom roms that are way smoother (CM12) but I am unsure if your issue is hardware related or the way you see it. Hope this helps!
I got youtube stuttering too for months on my TabS ST800, I tried every tricks in dev options, nothing ever changed .
But one day i tried the CARDBOARD view in the YouTube app options and then return to normal 2D view.... motion became butter smooth up to 1440p60, for any video! If closing youtube app and restarting it, it is stuttering again, until opening again the cardboard view.
Here is a test video I used to validate stutter-free playback :
youtu.be/0BS5V2mSxDs
Good luck.
Marco.hd said:
I got youtube stuttering too for months on my TabS ST800, I tried every tricks in dev options, nothing ever changed .
But one day i tried the CARDBOARD view in the YouTube app options and then return to normal 2D view.... motion became butter smooth up to 1440p60, for any video! If closing youtube app and restarting it, it is stuttering again, until opening again the cardboard view.
Here is a test video I used to validate stutter-free playback :
youtu.be/0BS5V2mSxDs
Good luck.
Click to expand...
Click to collapse
You, sir, are awesome!!! I had this problem for the last couple of months on my Tab Pro 10.1, tried everything to eliminate it. Going back to Stock or GraveD rom was slightly better but not really smooth either. I was beginning to lose my sanity switching back and forth between CM11, CM12.1 and stock-rom, trying different developer-options but was not completely satisfied in the end. This cardboard-step is a temporary fix i can definitely live with. But I'm surprised that not many people seem to be effected by this stuttering or they simply don't mind at all. Hope that google is going to fix this shortcoming in the near future but meanwhile...Thanks a ton mister :good:!
.... This cardboard-step is a temporary fix i can definitely live with. But I'm surprised that not many people seem to be effected by this stuttering or they simply don't mind at all. Hope that google is going to fix this shortcoming in the near future but meanwhile...Thanks a ton mister :good:![/QUOTE said:
I was so happy too I spent a night watching again many videos I love ! I'm glad I could share that little joy !
To answer your question, it is a shame that people are suffering from the belief that "online" videos on computer, tablets or phone *must* somewhat stutter. Well ... even trans-galactic communications in Star Wars/Trek and other sci-fi movies are depicted with stutter and even analog (!) video sync and lines issues (in 2150!!). Stutter and other digital disorders have been imprinted in the modern culture because not much effort was given to understand (and implement) that we human are analog creatures requiring a natural constant flow of sound and light, not a "best effort" variable low frame sample rate due to "unavoidable" system interrupts between storage, cpu, gpu and screen. Remarkably, Apple hardware/software was always close to perfection due to their close collaboration with the computer graphics industry for tv and movies..
It is indeed so much enjoyable when colors, contrast, motion of a clean picture hit the brain which then do not have to interpolate, filter dynamically and overcome an unpleasant stressfull and therefore tiring "motion picture"
So far only Sony with its X1 graphical processor in TVs is IMO able to achieve a minimum of digital artefacts while interpolating and displaying moving pictures. HD was a attempt to increase resolution (but we lost many qualities that the oldest of us enjoyed with CRT tubes). UHD must bring "better pixels" back with constant higher frame rate, higher pixel resolution and higher color resolution and dynamic range.
I hope to say bye bye soon to "flicks" = flickering judderish stuttering color-ish moving pictures.
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