Develop Bugs

Interesting Camera Behavior During Recording

Hi all,
Last evening I was playing with my device at home for its video recording capabilities when it suddenly started to rain outside. So I wanted to shoot some video for test purposes in vga format and to see how it did.
You can find this small clip on: http://rapidshare.com/files/251776461/VIDEO_002.mp4.html This is a 3.5 mb file with 36 sec. footage.
During recording something interesting happened; when I turned the camera from left to right, the device reduced the brightness of the footage to almost dark as if that part was so sunny; which resulted a crappy video. But when I turned the camera to left from right the brightness would come back again. I believe this is a sign of buggy driver.
For your information, Contrast is +4, Saturation is +4 and Sharpness is +3. Effect - none, metering mode - center area, flicker adjustment - auto, capture format - mpeg4.
Please note that I did not put my finger on any sensor on the device during recording.
Just see the video to understand what I mean ) Any ideas?

LOL!!! XDXDXDXDXD
SORRY!!! hahaha
It's called PHYSICS When you point your phone camera to the shiny clouds, it will adjust the colors lool
Imagine yourself looking into the sun. Won't you close your eyes to prevent that too much light enters your eyes ?
It's the same with the camera, it's not a bug. It's just adjusting to the picture. If point the camera into a dark room, you'll see that everything gets brighter and if you point it at light, everything will get darker
btw, is it possible that you're from turkey?

LOL!!! XDXDXDXDXD
SORRY!!! hahaha
It's called WRONG ANSWER. There's no sun in the sky and I point my camera to the houses which cover at least 80% of the view; it is 19.00 o'clock at evening, it's not shiny; but because of buggy software the device reduces all the brightness so you can not see or record anything at the end!
Btw, I am from Ankara, Turkey.

I do think mr PumpAction has a valid point (besides acting a bit like a 10 year old). I also think the camera tends to 'darken up' a bit too much whenever there is a high contrast scenario. In your case: the sky vs the ground. It may not be sunny, but the sky is bright white - thus the camera tries to compensate - and unfortunately overcompensates turning the city into a dark black.
You may want to try to alter the 'measuring mode'. I'm not exactly sure what the translation is in English (or Turkish for that matter) as I have a Dutch model of the tp2.
Anyway: get into the camera application, choose Video mode, then go into the Settings, hit the ícon 'advanced', then get to page 3/4 and select "measure/exposure mode". In my case it's the 3rd option on page 3. I can set it to "average" or "middle area". This may help. Then again, it may not.
Good luck =)

also it wat raining. Bug change there were some reflections. Did you film inside the house? So through the window? That would explain a lot.
(can't download the file so, Don't know)

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.
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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.
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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.
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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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[Q] PIxelisation problem on dark/black scene while streaming

Hi! I've got some serious pixelisation/artifact problem when i stream to netflix or youtube.
The problem seems to be related at the black color. Most of the time when there is a dark scene or some black element in a scene i will see some kind of pixel/artifact. I took a screenshot of a scene in a godzilla trailer but ... For some reason it look good while on my tablet its not.
On the picture attached on the left building most of the left side in the black area is pixelated on my tablet (i dont know why its not on the screenshot)
I tried to turn off the adaptive display while whatching videos but... it doesnt help. I also tried different streaming option (auto, low, med, high resolution) with netflix but it didnt helped.
I would like to know if its normal or i've got a faulty tablet (its the 2nd tab s i've got with the same issue).
Thank you

It`s hard to see from that photo, have a search for "black crush" problem that affected Samsung displays in the past, see if your problem is the same, but this problem affects all video not just streaming, maybe it`s a compression problem from poor quality steaming.
I save your photo and loaded it into paint.net app and used the auto levels setting, as from your photo i could only see the center bright section.
John.

I would say it's more to do with the fact that the display has such a high resolution it is capable of showing up artifacts within the video that maybe another display is not capable of displaying.

I know the tab had a high res but this issue doesnt seem really normal to me.

i just did an exchange for another Tab s and it does the same thing on netflix. Is this possible because the resolution of the tab is 1.5x higher than 1080p i've got this issue?

I convert all my video`s to 640x360 on my 10.5" and they look great, so it`s more likely a streaming compression problem and not resolution.
John.

Brightness Increase on YouTube Problem

I've got a problem with my Honor 8 Pro (EMUI 5.1, Android 7.0).
Whenever I play a video fullscreen on YouTube, I notice the brightness of the screen increasing. After I leave the fullscreen mode the brightness doesn't change unless I close the app.
Black colors look washed out thanks to this and watching dark videos is problematic. Anyone else with the same issue?

I which fw version you are?I dont have that problem.Try update phone to latest B188.

Allek84 said:
I which fw version you are?I dont have that problem.Try update phone to latest B188.
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I have all updates installed

Did you try to repair software via Hisuite or reset to factory settings including erasing all files from memory?Really strange problem.

I have this same issue on Emui8 .. Besides Amazon prime video
Every single app turns the contrast weirdly high and the black colors are not black anymore.. Awkwardly enough I have to constantly keep a finger on the screen to view a video normally in MXplayer.

Question Whats wrong with A52s auto white balance

I would like to hear some opinions on this. I noticed some time ago that my videos had very inconsistent colors - there would be visible change of the balance when paning around or filming different objects to an extent that seems odd. After trying out and comparing I did realise that the main camera tends to very aggresively change the auto white balance, even if the scene is basically the same and the phone just slightly changes angle. It seems as it tries to desperately match white balance to every frame and its content (forgive my amateur vocabulary here), which to me seems strange and looking at other phones they just hold a much more consistent balance.
I attach 2 videos to show the issue - keep in mind that the issue isnt as visible always, as I tried very specific scenes/angles to show it.
When I use manual white balance it works great, so it kinda feels like a software issue (?)
Does anybody have a similar experience?

Would you mind trying to film a video in a similar scenario, but after disabling the option "scene optimizer" in the camera settings? I don't know if it does anything, but might be worth trying.

1812CE said:
Would you mind trying to film a video in a similar scenario, but after disabling the option "scene optimizer" in the camera settings? I don't know if it does anything, but might be worth trying.
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Thanks for the tipp, I'll try to compare it, although I dont think that scene optimizer affects videos

Unfortunately turning scene optimizer off doesnt change it (video attached).
It still feels like a software issue, but since nobody has yet confirmed a similar experience I'm starting to think it might be a problem with my unit. (Btw my A52s seems to have the Samsung image sensor not the Sony one)
Edit: or, I am exaggerating and this behaviour is actually not unusual - havent had a Samsung phone for a few years before my A52s

neat_wheat said:
Unfortunately turning scene optimizer off doesnt change it (video attached).
It still feels like a software issue, but since nobody has yet confirmed a similar experience I'm starting to think it might be a problem with my unit. (Btw my A52s seems to have the Samsung image sensor not the Sony one)
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I do not shoot a lot of video, but in the few videos I did shoot I never saw what is visible in your videos (Sony sensor). It is indeed very jarring. Do you only have it with footage of grass or just always?
In the Samsung camera app, you can go the "Professional Video" mode in the "More" section (so where macro etc. is), and then set whitebalance manually to e.g. 5500K and see whether it is more stable then. But like I said I do not shoot a lot of video, so I certainly do not have experience with that professional video mode.
Edit: I now see that you already mention manual whitebalance yourself. So are there disadvantages to just using professional video mode all the time then?

sanderbos said:
(...)
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It definitely gets more visible in outside scenes, more so if there is a lot of green in the frame - indoors and with artificial light it definitely is hard to spot. As I mentioned above it feels like it tries to match the balance to the content or objects of/in the frame, instead of keeping a consistent balance. I had a video where I stuck my hand in and out of the frame and it would drastically change the whole color to match the hand it seemed (thinking about it, the background was grass also, so ...).
Pro mode is a solution, it's just that I'm not a fan of setting the balance everytime I take a video or photo - and the balance ofc affects photos in the same way, as 2 photos of basically the same scene might have drastically different WB.
Nevertheless thanks a lot for your input - I also very much enjoyed your detailed instructions for Gcam usage

neat_wheat said:
Pro mode is a solution, it's just that I'm not a fan of setting the balance everytime I take a video or photo - and the balance ofc affects photos in the same way, as 2 photos of basically the same scene might have drastically different WB.
Nevertheless thanks a lot for your input - I also very much enjoyed your detailed instructions for Gcam usage
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You would not have to set it every time (probably). In the Samsung camera app I have dragged the Pro Photo (not video) mode to the 'main bar' (from the more menu you can hold and drag items in and out of the main bar for quick access), with a changed fixed ISO (for shooting of fast action scenes), and you set it once and the camera app will remember that setting forever. And I think for all outside scenes around 5600K WB will work fine (it's not like the A52s is a high quality video machine anyway).
I didn't want to bring up gcam because I had no idea whether that would make a difference, but now that you brought it up, does that have the same whitebalance issues for you (in video)?

sanderbos said:
(...). And I think for all outside scenes around 5600K WB will work fine (it's not like the A52s is a high quality video machine anyway).
I didn't want to bring up gcam because I had no idea whether that would make a difference, but now that you brought it up, does that have the same whitebalance issues for you (in video)?
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I meant I would have to set it again for every scene, but you are right, something like 5600 would probably be okay for most outdoor stuff. And with rearranging the icons it wouldnt be such a hassle. I'll try that out for daily use, thanks!
I am using BSG gcam also, because I find the nightmode drastically better but unfortunately the balance issue is the same, so I guess the balance gets set on system level. I also tried gcam awb but it always seems to be a bit off no matter the config - but I prefer the stock app for daylight anyway (apart from the wb)