Database Develop

[Q] can any DEV mod the front camera to record 720p???

ok...i got this device day b4 yesterday and am fairly satisfied after rooting and deleting the LG Bloatware.
however, can any of the respected Devs of this forum mod the font facing cam 2 record HD (or even D1) videos???....not that i NEED it, but it's just good 2 have something "better" than the stock 1
to the moderator: sorry if i reposted or posted in the wrong sub-forum

achyut said:
ok...i got this device day b4 yesterday and am fairly satisfied after rooting and deleting the LG Bloatware.
however, can any of the respected Devs of this forum mod the font facing cam 2 record HD (or even D1) videos???....not that i NEED it, but it's just good 2 have something "better" than the stock 1
to the moderator: sorry if i reposted or posted in the wrong sub-forum
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AFAIK, FFC is only 2MP, to record HD? What do you expect? CMIIW.

I highly doubt this is possible.

naah man...u'r wrong
redy2006 said:
AFAIK, FFC is only 2MP, to record HD? What do you expect? CMIIW.
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DUH!!!!!....resolution has got nothing to do wid camcorder!!!!...even a camera with <1 MPx can technically record HD videos. E.g. - the ipod touch 4g...so a 2 MP camera can very well record HD videos

Probably it could be done 1600x1200 (2MP) is more than HD resolution (1280x720), but you have to remember, that there is some hardware involved, I remember playing with some webcam drivers back in college, and although I did managed to capture high resolution video (for that time VGA), it looked choppy like hell
I would just not bother for a result like that!

redy2006 said:
AFAIK, FFC is only 2MP, to record HD? What do you expect? CMIIW.
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Lol..... I just wondered the same thing in the other thread, I mean the sane other thread.....
---------- Post added at 06:33 PM ---------- Previous post was at 06:31 PM ----------
mihaiolimpiu said:
Probably it could be done 1600x1200 (2MP) is more than HD resolution (1280x720), but you have to remember, that there is some hardware involved, I remember playing with some webcam drivers back in college, and although I did managed to capture high resolution video (for that time VGA), it looked choppy like hell
I would just not bother for a result like that!
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But what about the frames? Can it reach 30 fps?

officialreloaded said:
Lol..... I just wondered the same thing in the other thread, I mean the sane other thread.....
---------- Post added at 06:33 PM ---------- Previous post was at 06:31 PM ----------
But what about the frames? Can it reach 30 fps?
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yup...and can be very steady at [email protected] fps should be technically possible in a 2MPx camera

if you have a duct-tape, then it can be solved
- buy a high-quality-cam (5MP or even more)
- strap it in front of your phone's side using the duct-tape
- voila, a greatest front-cam res you've ever got
lol

:d :d :d
agent205 said:
if you have a duct-tape, then it can be solved
- buy a high-quality-cam (5MP or even more)
- strap it in front of your phone's side using the duct-tape
- voila, a greatest front-cam res you've ever got
lol
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Click to collapse
LOL!!!!....thnk u fr ur suggestion ....i used the duct tape to strap my FZ28 to the phone

unlikely
highly unlikely if it has hardware limitations

it has no "hardware" limitation
rafa0794 said:
highly unlikely if it has hardware limitations
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the hardware, i.e., 2MPx is highly capable of recording HD videos....even a <1MPx can record HD videos. it's just a software cap

achyut said:
the hardware, i.e., 2MPx is highly capable of recording HD videos....even a <1MPx can record HD videos. it's just a software cap
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What about electronic limitations? The CCD used in the camera might require a couple of miliseconds to actually capture the light, and then send it via the wire to the CPU. If either the CCD can't capture it fast enough, or the channel is not fast enough, you're not going to get 30 FPS no matter what magic you use in your software. That's why you have to wait for ever between shots on cheap compact digital cameras, and hardcore DSLR cameras can take snaps for a few tens of times per second.

achyut said:
the hardware, i.e., 2MPx is highly capable of recording HD videos....even a <1MPx can record HD videos. it's just a software cap
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Not all sensors can record in HD. Just because it has adequate resolution doesn't mean it can capture images fast enough to generate HD.

i don't think so...
nikpik said:
Not all sensors can record in HD. Just because it has adequate resolution doesn't mean it can capture images fast enough to generate HD.
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well...ur answer has an "yes" and a "no".
i agree all sensors cannot record HD but i disagree with the resolution problem.
video recording resolution (480p, 720p, etc) depends on the resolution of the recording camera but more importantly the "shutter speed". i feel the glitch is in the 2nd part, i.e., the shutter speed.
don't know exactly, but i feel there is a very slim remote chance if any DEV takes this seriously.

achyut said:
but more importantly the "shutter speed"
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Just to be clear, you're talking about the frame rate of the sensor, not the shutter speed.
The frame rate is the number of frames the camera takes in a second.
The shutter speed is the amount of time it takes for the camera to take each frame.

nikpik said:
Just to be clear, you're talking about the frame rate of the sensor, not the shutter speed.
The frame rate is the number of frames the camera takes in a second.
The shutter speed is the amount of time it takes for the camera to take each frame.
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yes...dats just wat am tokin bout...considering that the front cam can very well record @ 29.97 fps steadily in VGA resolution, i feel the "fps" is NOT a problem. wat do you think the problem m8 actually be???...any idea???

Anyone getting rolling bars when recording in slow motion low light?

I'm getting some seriously nasty bars during slow motion recording (I attached a screen shot which isn't as bad but when it's a video the bars move all around and are very distracting) Anyone seeing the same thing or am I looking at a defective phone? I already swapped out phones yesterday due to a stuck pixel, but best buy has been very easy about it thus far. Just wanting to see if this is hardware or software, thanks!

Yep, exactly the same here. Gets worse the more the sensor gain ramps up.

ydoucare said:
Yep, exactly the same here. Gets worse the more the sensor gain ramps up.
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Checked the sprint store demo and a best buy demo, All the same. Must be a low light issue. Oh well, Guess most of the time the feature will be used in the daylight (although this may be a bad thing when trying to slow mo some epic beer pong matches)

coojoe1000 said:
Checked the sprint store demo and a best buy demo, All the same. Must be a low light issue. Oh well, Guess most of the time the feature will be used in the daylight (although this may be a bad thing when trying to slow mo some epic beer pong matches)
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Figures, seems like it would be a hardware issue, but maybe there will be some magic firmware update that will help.

Most serious hd cameras require a lot of light, so this should be no surprise when recording show motion videos. Just be sure to have adequate lighting in the future
Sent from my HTCONE using Tapatalk 2

I haven't looked closely at the example yet otherwise I would have put my 2 cents in earlier.
I work a lot with cameras and know them very well. One thing to keep in mind is cmos sensors don't expose every pixel at the same time. This causes what is known as the jello effect when you move quickly left and right. This can also cause what is known as rolling shutter. I believe this is caused by the shutter speed in combination with the way cmos sensors work. When I get back from this weekend trip, I'll see what is going on.
At work I have a professional Sony video camera with a backlit cmos sensor. If I drop the shutter speed down too low to help when it's too dark, especially around fluorescent lights, I get brown bars rolling across the image. It's just a physical limitation of the sensor no matter the camera. Some hide it better than others. I hope this helps clear this up.
Sent from my Evo 3D CDMA using xda app-developers app

This is nothing like traditional noise caused by high sensor gain in low light. We're talking dense horizontal lines only in slow motion recording, which I'm guessing is 120fps? 60 fps mode works fine. I've seen examples of slow motion video recorded by the euro version in low light that didn't have this problem.

ydoucare said:
This is nothing like traditional noise caused by high sensor gain in low light. We're talking dense horizontal lines only in slow motion recording, which I'm guessing is 120fps? 60 fps mode works fine. I've seen examples of slow motion video recorded by the euro version in low light that didn't have this problem.
Click to expand...
Click to collapse
That doesn't eliminate it as a cause. The example you saw could have been in better lighting conditions than you thought, or the euro edition might have had older firmware that didn't let the ISO go as high (thus, the whole image would appear much darker, but less noise).
120fps slow motion means the camera has to use at least 120th of a second for a shutter speed. This is relatively fast for a smartphone camera, so it has to bump up the ISO to compensate. If the light is especially low, it will have to move all the way to the upper bounds of its ISO capability to get a usable image. Meanwhile, a 60fps video will have MUCH more time (2x is a lot of time) to grab light, and so it doesn't need to force the ISO so high.
It's extremely unlikely that a firmware update will solve this issue. All they could do is just force the camera not to use that high ISO setting, resulting in slow motion videos that are too dark instead of too noisy.
(Also, BTW, this has nothing to do with the jello effect)

How do you do slow motion video recording? When I have the video camera on, there aren't any menu options available.

Vincent Law said:
(Also, BTW, this has nothing to do with the jello effect)
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Thanks for adding. I hadn't had a chance to even look at the example posted but felt like it should be addressed by someone. I'm out in the middle of nowhere right now, video streaming isn't always going to work well here.
Sent from my Evo 3D CDMA using xda app-developers app

Vincent Law said:
That doesn't eliminate it as a cause. The example you saw could have been in better lighting conditions than you thought, or the euro edition might have had older firmware that didn't let the ISO go as high (thus, the whole image would appear much darker, but less noise).
120fps slow motion means the camera has to use at least 120th of a second for a shutter speed. This is relatively fast for a smartphone camera, so it has to bump up the ISO to compensate. If the light is especially low, it will have to move all the way to the upper bounds of its ISO capability to get a usable image. Meanwhile, a 60fps video will have MUCH more time (2x is a lot of time) to grab light, and so it doesn't need to force the ISO so high.
It's extremely unlikely that a firmware update will solve this issue. All they could do is just force the camera not to use that high ISO setting, resulting in slow motion videos that are too dark instead of too noisy.
(Also, BTW, this has nothing to do with the jello effect)
Click to expand...
Click to collapse
The euro demo was in CONSIDERABLY worse lighting, without question. I don't have time to look for it now, but it's on Youtube.

The Euro version just got an official update regarding several problems. It also included a low light slomotion video upgrade
Sent from my PG86100 using xda app-developers app

I'm getting a stuck blue pixel when taking photos in low light... is anyone else experiencing this? The blue pixel is showing up in the actual photo taken, so I'm assuming it's a problem with the sensor.
Daylight photos aren't exhibiting this behavior.

[Q] Photos are 'dirty' with yellow/brown bars.

My Z is a few months old now, and has been functioning fine so far. Now and then though, the camera goes completely nuts- by taking photos with yellowish/brownish bars across it. The bars are visible on screen too. I can't figure out what's causing this (I've wiped the back panel), but it seems like it only happens for indoor shots, especially when the subject of the photo is close to the camera (about 20cm away).
Is this something to worry about? Are there many other users with the same problem, and should I send it in for servicing/ to get a replacement unit? It's still under warranty.
I'm on build 101.1.A.1.253, running stock 4.1.2, for what it's worth.

Get it replaced.
From me to you.

XperienceD said:
Get it replaced.
From me to you.
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Not sure if they provide replacements under warranty here, actually... did you have the same problem?

aprilius20 said:
did you have the same problem?
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No, but if my pictures were coming out like that as well as my display looking like it too whilst using the camera, it would be going back.

XperienceD said:
No, but if my pictures were coming out like that as well as my display looking like it too whilst using the camera, it would be going back.
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Click to collapse
Yeah same here, it seems more the logical. The shop you bought it can't call that a good picture.

I done some research on this
this is under fluorescent lighting @ ISO 1600
This is under fluorescent lighting @ ISO100 (still a little brownish)
This is under fluorescent lighting @ ISO 400? With HDR ON
This is under sunlight @ ISO 1600 With HDR ON
I have tested also on ther condition, did not upload it/ deleted
but i can sort of deduce this
1. The brown bars are caused by the fluorescent lighting that have a frequency clash with the camera refresh rate.
2. The problem seems minimize at ISO100, appears slightly @ ISO200 but worsen once over ISO400
3. The pictures above is taken at close range ~ 8cm away with the phone place on an elevated box.
4. with fluorescent lighting, the HDR ON affect on as low as ISO100, and causes the ghost/double image and really tits up on higher ISO. This issue lessen with natural sunlight where the image maintain crisp until ISO 1600.
5. I cannot use the self timer as the flash light for the timer sometimes f-up the focus (this is a real f-up)
6. There are still other modes i have yet to test out such as burst etc

XperienceD said:
No, but if my pictures were coming out like that as well as my display looking like it too whilst using the camera, it would be going back.
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Click to collapse
Logical enough for me
mcchin said:
I done some research on this
1. The brown bars are caused by the fluorescent lighting that have a frequency clash with the camera refresh rate.
6. There are still other modes i have yet to test out such as burst etc
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Click to collapse
I didn't bother testing as much as you did, but all that does seem to make sense! Did some searching and it seems like some Sony cameras have this problem (point and shoot, or DSLR, I can't remember). It is an indoor only thing like you said, under fluorescent lighting.
Wonder if this qualifies as a bug or a hardware limitation...

Camera Issue

hi guys.i just purchased the xperia z1.when checking out the camera at night i saw these red tint along the sides when there is no light.Is this a defect??

Dunno , but it surely does looks like it. Take it back for a replacement.
Sent from my HTC One X using xda app-developers app

mhoss48 said:
Dunno , but it surely does looks like it. Take it back for a replacement.
Sent from my HTC One X using xda app-developers app
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strangely the picture taken dosnt have the red tint..

subextreme007 said:
hi guys.i just purchased the xperia z1.when checking out the camera at night i saw these red tint along the sides when there is no light.Is this a defect??
Click to expand...
Click to collapse
Come on! No! Do not cover the camera lens, take the phone in you hands and all will disappear. They are pixels processed by the camera with no light.

eclyptos said:
Come on! No! Do not cover the camera lens, take the phone in you hands and all will disappear. They are pixels processed by the camera with no light.
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So i tested again with only my laptop backlight as the light source..this is the liveview..the tint is not in the picture though

subextreme007 said:
So i tested again with only my laptop backlight as the light source..this is the liveview..the tint is not in the picture though
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Click to collapse
Ok. I got tiny ble and red pixels too when the camera is in low light. But not like on your phone. Try to set up the setting on you phone to the best quality you can. Take a picture in Low and High light. If on the pictures there are not visible pixels that means is the preview the problem of you camera. If is the preview you can live with that, it's your choice. If not go for a replacement and explain the problem, but I don't know if the warranty cover that.

eclyptos said:
Ok. I got tiny ble and red pixels too when the camera is in low light. But not like on your phone. Try to set up the setting on you phone to the best quality you can. Take a picture in Low and High light. If on the pictures there are not visible pixels that means is the preview the problem of you camera. If is the preview you can live with that, it's your choice. If not go for a replacement and explain the problem, but I don't know if the warranty cover that.
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Tested in manual mode..interestingly no tint ..tint is only in the superior auto mode.

subextreme007 said:
Tested in manual mode..interestingly no tint ..tint is only in the superior auto mode.
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So was the settings, I am happy for you. I will not like to leave the preview like that either.

eclyptos said:
So was the settings, I am happy for you. I will not like to leave the preview like that either.
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Click to collapse
but took some shots in manual mode in low light there are some tiny white dots in some region of the picture.

subextreme007 said:
but took some shots in manual mode in low light there are some tiny white dots in some region of the picture.
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Post some pic.

if u zoom in the pic on the upper part u can see some white spots...

eclyptos said:
Post some pic.
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Click to collapse
If u zoom in on upper part of the pic or the right part u could see the white dots..

subextreme007 said:
if u zoom in the pic on the upper part u can see some white spots...
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Click to collapse
The picture is too dark, can be even a reflection like the small red point in the middle but if you are refer about the tiny white pixel, in this case is a faulty pixel. But I think is just a coincidance.
Any picture which you take have in the same position the white pixel? Maybe you go just crazy!

eclyptos said:
The picture is too dark, can be even a reflection like the small red point in the middle but if you are refer about the tiny white pixel, in this case is a faulty pixel. But I think is just a coincidance.
Any picture which you take have in the same position the white pixel? Maybe you go just crazy!
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Click to collapse
took this one with superior auto mode..pls look at the top left ...image seems to be distorted..is this a defect lens?

subextreme007 said:
took this one with superior auto mode..pls look at the top left ...image seems to be distorted..is this a defect lens?
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Click to collapse
Yes it is a bit. The lens are clean? The leans are dirty in some way?
Also you have to take in consideration the poor quality of the picture because the low light make the picture more distorted. Is very hard for the camera to processing that king of pictures. You will never take this picture as a good picture so I will delete it. You try the perfection and is ok, I did this too. Try to take a nice clean normal light pictures, if they are good and no preview problem (solved) and no strange distortion you are fine. If there is any problem with the lcd pixels or with the lens you should have the problem all the time in the same place. So I think is not your case. Everything is ok..

eclyptos said:
Yes it is a bit. The lens are clean? The leans are dirty in some way?
Also you have to take in consideration the poor quality of the picture because the low light make the picture more distorted. Is very hard for the camera to processing that king of pictures. You will never take this picture as a good picture so I will delete it. You try the perfection and is ok, I did this too. Try to take a nice clean normal light pictures, if they are good and no preview problem (solved) and no strange distortion you are fine. If there is any problem with the lcd pixels or with the lens you should have the problem all the time in the same place. So I think is not your case. Everything is ok..
Click to expand...
Click to collapse
hey thanx for ur valuable time..need to test it again in good light hope it produce good pictures...

subextreme007 said:
hi guys.i just purchased the xperia z1.when checking out the camera at night i saw these red tint along the sides when there is no light.Is this a defect??
Click to expand...
Click to collapse
No that is the phone trying to display something in the dark, the red bleed is any little bit of light coming into the lens. The scene is just too dark for the phone to render on the screen.
---------- Post added at 07:30 AM ---------- Previous post was at 07:29 AM ----------
subextreme007 said:
strangely the picture taken dosnt have the red tint..
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Click to collapse
No it's not strange, it's normal
---------- Post added at 07:34 AM ---------- Previous post was at 07:30 AM ----------
subextreme007 said:
So i tested again with only my laptop backlight as the light source..this is the liveview..the tint is not in the picture though
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Click to collapse
Seriously dude, with almost no light for the camera to render something on the display you are lucky you can even see anything. Liveview will only show you what it can based on real time processing, so in low light will most likely look much darker, in that light the shutter is probably going to to about 1 second, therefore the phone can't liveliew that because it will piss you off every time you move the camera waiting 1 second for the picture to refresh
---------- Post added at 07:35 AM ---------- Previous post was at 07:34 AM ----------
subextreme007 said:
but took some shots in manual mode in low light there are some tiny white dots in some region of the picture.
Click to expand...
Click to collapse
It's called ISO noise and noise reduction

danw_oz said:
It's called ISO noise and noise reduction
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Click to collapse
Right, I forgot is called ISO, speaking technically. .

danw_oz said:
No that is the phone trying to display something in the dark, the red bleed is any little bit of light coming into the lens. The scene is just too dark for the phone to render on the screen.
---------- Post added at 07:30 AM ---------- Previous post was at 07:29 AM ----------
No it's not strange, it's normal
---------- Post added at 07:34 AM ---------- Previous post was at 07:30 AM ----------
Seriously dude, with almost no light for the camera to render something on the display you are lucky you can even see anything. Liveview will only show you what it can based on real time processing, so in low light will most likely look much darker, in that light the shutter is probably going to to about 1 second, therefore the phone can't liveliew that because it will piss you off every time you move the camera waiting 1 second for the picture to refresh
---------- Post added at 07:35 AM ---------- Previous post was at 07:34 AM ----------
It's called ISO noise and noise reduction
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so is it common that u will get red tint when der is no light??and there is considerable amount of noise in the pics in daylight too.. ....my galaxy s,lumia 800 doesnt have these issues...

subextreme007 said:
so is it common that u will get red tint when der is no light??and there is considerable amount of noise in the pics in daylight too.. ....my galaxy s,lumia 800 doesnt have these issues...
Click to expand...
Click to collapse
Yep because it is too dark to show the colours correctly, it is hard for the camera to display, the red pixels is light sneaking past into the lens. Other cameras display the image as a higher iso preview so allow more light in, but change when taking the shot, not sure why Sony don't increase the this. BTW all my point and shoots and even my DSLRs in liveview have this problem in low light, unless I change the ISO high.
Maybe root your phone and download monxdified ROM, it has some camera tweaks. Try not to use superior auto, and use manual mode for best results, that way you can control many different settings.

General Already got S21 Ultra, ask me anything

So I was lucky to be one of 100 first people who order S21 Ultra Exynos in Thailand. As the part of the campaign, I got the phone early and only need to pay $0.7 (21 Thai Baht) for it. Already got the phone in-hand without any NDA, so ask me anything!

pls. post example fotos , especially night mode.
i have read many reviews, and i am shortly before cancelling it, the camera reviews are bad... :/

please post some screenshots of the sot

Whats the lowest numbered square you can see in this image on the lowest brightness setting in a pitch black room?
https://imgur.com/WJeqtlt

MeisterGigi said:
pls. post example fotos , especially night mode.
i have read many reviews, and i am shortly before cancelling it, the camera reviews are bad... :/
Click to expand...
Click to collapse
Here are some landscape photo of my university taken with main camera at 108MP. Will try night photo for ya!

Toss3 said:
Whats the lowest numbered square you can see in this image on the lowest brightness setting in a pitch black room?
https://imgur.com/WJeqtlt
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Click to collapse
Around 8-7. 6 is hard to see even at full brightness.

WiizGhost said:
please post some screenshots of the sot
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Click to collapse
Let me use it until it drain and will get back to you!

KenSoftTH said:
Here are some landscape photo of my university taken with main camera at 108MP. Will try night photo for ya!
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Click to collapse
I think all three photos look very nice when zoomed to be "full screen" on my 1080p laptop screen. When I zoom to 1-to-1 pixels I see that there is a small bit of jitter in the photo. It looks like you couldn't be 100% steady when shooting (who can? We're talking very small pixels here and your arms were probably outstretched in the air) and the phone was not able to completely remove the sway. But, this is only noticeable when zoomed in 1 to 1. Also, some parts of the image are a bit muddy at that zoom level. I expected this as packing 108MP into a small sensor is basically guaranteed to make the actual pixels a little muddy. In these high brightness pictures the image looks as good as I'd expect. I would not feel bad about being able to get quality like that. Now, that still does leave everyone with the question "what about when it's dark" but we'll see.

WiizGhost said:
please post some screenshots of the sot
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Click to collapse

Are those haptics as good as advertised ? Can you post (via upload button) some IRL photos (like in the dark of your room, ...
Usually youtubers take photos around their 10000$ lighting setup so having casual photos is interesting
@KenSoftTH

Raiz said:
Are those haptics as good as advertised ? Can you post (via upload button) some IRL photos (like in the dark of your room, ...
Usually youtubers take photos around their 10000$ lighting setup so having casual photos is interesting
@KenSoftTH
Click to expand...
Click to collapse
Here you go. From all cameras. Two photo for main wide lens 108MP and 12MP 9 pixel binning.

How's the finger print sensor compared to s10/20

shanxybeast said:
How's the finger print sensor compared to s10/20
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Click to collapse
I never uses S10 or S20, but compared to S20 FE 5G, it is noticably faster and much more accurate.

Has mst been removed from your version of S21u?

shanxybeast said:
Has mst been removed from your version of S21u?
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Samsung Pay was removed from my version. Don't know about MST.

How's the heating and cooling on the device? Do any gaming?

shanxybeast said:
How's the heating and cooling on the device? Do any gaming?
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The exynos version heats up much faster than S20 FE 5G which has snapdragon 865. It is much hotter than 865 during gaming and i experience some frame rate drop after playing at 1440p for extended period of time. Turning down to 1080p reduce fps drop and reduce heat slightly. However, after idling for a short while, it cool down really fast. Don't know about snapdragon 888 version though.

How has the low light performance been?

shanxybeast said:
How has the low light performance been?
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Click to collapse
see image sample above

What's the drain been like on mobile data when not using the phone? Sorry it's a very boring question