yashsingh1/xdaforums huggingface dataset:
[Xperia Z1 Q&A, Help & Troubleshooting] Ambroos:
4K video recording in 4000x2000 was available in early software for the Z1 but dropped in later builds.

Why? Because it's useless. It's a waste of storage space and processing power. There's not much additional detail captured and SteadyShot would have been a lot harder. And in addition to that there's no proper way to play it back on anything besides the phone (where it has no use).
[Xperia Z1 Q&A, Help & Troubleshooting] ashouhdy:
4K recording 1min = arounds 700MB So 10 min. video around 7 GB !! and u need a 4k display to see the difference !
[Xperia Z1 Q&A, Help & Troubleshooting] dazza7111:
Yep waste of time. Maybe next z series will have it.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
If this is the right calculation that's mean was never taken in consideration by Sony the 4K. We still with a Phone with 16gb of internal storage and they didn't even made a 32gb Z1. When we start to see 128gb of microSD on the market probably we can speak about this seriously.
[Xperia Z1 Q&A, Help & Troubleshooting] ashouhdy:
According to the note3 7 sec equals to 100mb and its shaky as if filming in a boat on a stormy day.
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
Then I wonder is the hardware powerful enough to capture at 8mp then down sample the video in real time to 1080p? Cus i saw some 4k sample from note 3, the details is definitely better.
[Xperia Z1 Q&A, Help & Troubleshooting] danw_oz:
Twice the pixels so should have more details.

No doubt the hardware is powerful enough, i believe the biggest issue is the available bandwidth between the CPU and the micro SD interface to be able to write all that level of detail real time without causing buffering.

I think a new codec needs to be developed with high quality picture quality and good compression so that 4k recording file sizes are reasonable because of sd card limitations.
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
what I mean is it downsample from 8MP 4k capture to 1080p video on the fly and record it as a 1080p format, so any recording to SD should be fine since the file size is significantly reduced, maybe higher hand 1080p but probably not too far off. Defintiely smaller than native 4k format.
[Xperia Z1 Q&A, Help & Troubleshooting] danw_oz:
Don't understand what you would achieve with what you are proposing?

1080p is pretty much 2MP, your camera sensor pretty much already has to down scale this for video to 1080p, at the end of the day if you have 2MP or 200MP to start with you still only have 2MP final video no difference in quality, the only way to increase quality is by adding more pixels.
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
maybe I don't even know what I am talking about, its like pixel bining but with video instead or when you downscale a high MP picture into lower resolution you get rid of some of the the noise and also get better details. Like watching the 4K video on note 3 screen than a same scene but recorded in 1080p.
[Xperia Z1 Q&A, Help & Troubleshooting] keithwalton:
Sony is probably doing some form of super sampling already we're just not privy as to how it converts the sensor information into video.

do they turn 9 out of 10 of the pixels off in the sensor or do they average 10 pixels down to one via some matrix pattern, I suspect more the latter.

When HD (720p) first came out you could tell if a tv show had been filmed in hd or not even when watching it in standard definition.

As for the Z1 having enough power to do it, soc wise it's very similar to the note 3 just clocked 1 bin lower and has 2gb instead of 3gb of ram.

The extra ram could be the key though gives that bit more of a frame buffer for encoding with
[Xperia Z1 Q&A, Help & Troubleshooting] danw_oz:
Pixel binning , yep that is exactly what occurs when recording with any camera above 2MP, plus the codec will compress these further by pixel binning as well based on algorithms of the file format.

I don't get it (note 3 references) watching 4k video on 1080p screens, there is no benefit it can only display 1080p. However watching 1080p content on 4k screen with up-scaling then maybe.

If there is a difference of watching 4k vs 1080p on a 1080p screen then the recording of and the rendering of the 1080p was crap.
[Xperia Z1 Q&A, Help & Troubleshooting] stealthj:
You guys are doing you don't want 4k and it's a waste of space....you must not have a 4k tv. I would kind to record in4k and play it back on the tv
[Xperia Z1 Q&A, Help & Troubleshooting] Tonian1878:
its called future proofing. 4k tvs will soon be mainstream and it would be nice if your personal videos are already in 4k.

plus i prefer large resolutions when editing (picture or video) then shrink it down to a standard format (1080p/8mp) to hide any imperfections in my editing

also, i bet you dont have a screen that has an 20mp or even 8mp resolution but you still takes pics at that resolution. why?, cos its a better quality
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
no there is a huge difference watching 4k vid on 1080p screen, especially the micro detail, and everything is more crisp. Upscaling from lower quality to 4k is useless, but downsampling from higher res to lower res has a huge advantage. You really have to see it yourself on the note 3 to appreciate it. Exactly same scene looks much more detail. Sony doesn't even need to use 8mp to down sample, anything higher like even 4M should make a difference.
[Xperia Z1 Q&A, Help & Troubleshooting] Thraxzzz:
A 4k TV cost 9k here in sg, ain't nobody got time fo dat

Sent by voldermort's nose
[Xperia Z1 Q&A, Help & Troubleshooting] danw_oz:
No it has no benefit to downsize, I understand what you are trying to say.

Sorry you are dead wrong, If your 1080p source is good quality in the first place you should see no difference playing 4k or 1080p on a 1080p screen. The limit is your screen not the source, you can not display any more pixels than 1080p therefore the picture quality will not change.

Take a photo at 8MP, then take a photo at 20MP and reduce the size to 8MP, you actually have a degradation in quality due to the down sizing algorithms, so your native 8MP shot should actually look more clear as a final result.

Take a video and re-sample it down to a smaller size you also loose quality each time you re-sample, similar thing will occur with 4k on 1080p and then you have to rely on the codec to make the best decision of what to information it is going to discard, you just end up with a huge file for no benefit.
[Xperia Z1 Q&A, Help & Troubleshooting] ashouhdy:
100% right it depends on the viewing source.
[Xperia Z1 Q&A, Help & Troubleshooting] qbic2:
Not really, line skipping is used very often.
[Xperia Z1 Q&A, Help & Troubleshooting] One Twelve:
4k is 2160p, the advantage is you can zoom in more than 1080p without losing detail. I don't mean zoom when recording the video. I mean zoom when you pinch to zoom in a media player. This is probably most apparent on a phone than on a standalone screen.

I don't think Z1 can take a 8MP native shots. It takes them at 20MP then downsizes. The reason given for why 8MP looks better than the 20MP is oversampling done in the Z1. There is less noise apparent in the 8MP shots. Its a bit counter-intuitive.

if your display is full HD, the max it show is 2MP. A 8MP downsized to 2MP with a good quality program say PS or lightroom is adequate. This will reduce noise even further.

Same applies with 4k videos, If you resize down to 1080p you cut noise out further. Better to do this on a pc than the phone.

If zoom isn't required then yes.

A resize is a re-sample. Theoretically you're throwing away data but it can result in a better looking photo if done with good software. 20MP resized down to 2MP say is better than taking a 2MP photo on the phone.

How many megapixels do you need?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
A Professional Photographer said I don't need for good pictures more than 10mpx, 8mpx is even better. I remember my old 8mpx Camera, was making awesome nice clean pictures, I sold that camera like a stupid to buy a 14mpx Camera, what a crap of pictures. I sold that camera again to buy a 10mpx camera which was much better than 14mpx. Of curse depends also than the sensor and processing but how old cameras was making better pictures than a new one, should be better but was not so I don't know why you guys pretend always more like the 4K when you can have awesome quality already. The phone was released few months ago and you don't even enjoy it.
[Xperia Z1 Q&A, Help & Troubleshooting] One Twelve:
How do you know that ?

How do you know there is no downsizing.

Better in this sense meaning less noise when zoomed in. See the shots quoted by me in this

post

.

The 8MP has less noise than the 20MP when zoomed in. The OP in that thread was griping about the quality of the 20MP not being as good.

Will reply to the the rest later.
[Xperia Z1 Q&A, Help & Troubleshooting] rameshkotibani:
xperia

is it xperia ZL supports 4k recording???????????
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
that S4pro in the ZL cant even handle 4K playback, let alone recording.
[Xperia Z1 Q&A, Help & Troubleshooting] Leo0407:
it is easy to play 4k video, let's try IHacker rom
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
with the ZL S4pro? Even the exynos Note 3 can't handle 4k video playback, even S600 probably would choke on 4k playback. qualcomm site says s4pro can only handle full HD playback.
[Xperia Z1 Q&A, Help & Troubleshooting] acervenky:
Stock Roms Can Play 4k Vids,And Omni,Slim,etc. can also play them.;)

Regards,

acervenky,

XPT

EDIT: I am talking abt Z1.
[Xperia Z1 Q&A, Help & Troubleshooting] Gitaroo:
you sure with ZL? not Z1
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
Afaik wouldn't 4K be pointless unless its shown on a display capable of showing it natively? I for one am not shelling out on a TV worth more than most peoples cars.

Not the most knowledgeable when it comes to cameras and such, I'm interested in it, just not up to speed as much as I'd like to be.

Also I find the z1 camera has a very grainy look to it especially when zoomed in, worse when shooting but still bad post zooming after the shots been taken, low light makes it worse.

Maybe I'm not tweaking the camera right.

Would be nice to see 4k as an option but I don't think I'll fully benefit from it to be honest.
[Xperia Z1 Q&A, Help & Troubleshooting] TheEndHK:
I would say your concept is totally misleading, please stop spam out wrong information. Go get some 4k Video samples recorded by Note3, you will know the REAL answer easy and now.

Any photo or video is well benefited by down-sampling(or called super-sampling by Nokia 1020/1520 and Sony Z1). What you are speaking 4k is only useful on 4k device is meant to be only on professional recording equipments or 4k Blu-Ray movies, their sources are excellent you will hardly notice the different on a 1080P screen.

However, we are on consumer recording devices, this is another story though. The 1080P recorded video on our smartphone is bad quality, I usually need to down size it to 720p to get best result. If we are able to do 4k recording now, we can down size it to 1080p and finally get a true 1080P quality.
[Xperia Z1 Q&A, Help & Troubleshooting] ashouhdy:
What do mean with true 1080p quality .. Whats the difference between our regular 1080p video rec. And true 1080p videoo quality ?
[Xperia Z1 Q&A, Help & Troubleshooting] TheEndHK:
Just google and go get some Note3 4k original video sources and watch it on your computer 1080P monitor. It's a pure experiences and impossible to tell you with words here.
[Xperia Z1 Q&A, Help & Troubleshooting] danw_oz:
How about you read the entire thread and the context of my comment before you blurt out. You are saying pretty much exactly what I was saying so stop spamming rubbish yourself. We we talking about phones here 4k on phones, do you get it? maybe not. Not consumer recording devices...

The whole point which you missed is playing a 4k video, is not going to give you any better playback quality on a 1080p phone screen, and it is not worth the huge cost is storage space on your SD Card ;)
[Xperia Z1 Q&A, Help & Troubleshooting] raziel123:
ditto,

all Snapdragon 800 processors are capable of recording 4K,

this is a software issue, Sony havent enabled 4K recording,

to be honest I don't see what the big deal with 4K is,

1080P is good enough in my opinion.

4K is only really useful on large screen TV's etc

regards
[Xperia Z1 Q&A, Help & Troubleshooting] BreakShadow:
LG G Flex is getting it too with Kitkat. Same CPU as ours.
[Xperia Z1 Q&A, Help & Troubleshooting] AndroidInsanity:
When I had my G2 I installed the camera MOD to record 4K. And I really couldn't tell a difference. It's not worth it I think unless you have a 4K monitor which makes every pixel count.

However, I am all for 1080p 60fps.
[Xperia Z1 Q&A, Help & Troubleshooting] jontr:
...or on a projector with 4K resolution... but that's future (unless you own your own cinema, as the projectors in cinemas are 4K)
[Xperia Z1 Q&A, Help & Troubleshooting] oc_masta:
Conversation is hilarious.

First of all, it's a technological leap in video quality for phones.

Capturing 4k is great especially when downscaled to 1080p, it WILL rival the quality of any of your 1080p DSLR's out there, and arguably better QUALITY since its encoding at a much higher bit rate anyway.

That's amazing in itself.

The possibilities for indie productions are huge. For capturing a vine it's pointless of course which leads me to believe the people talking down on 4k don't really video for anything meaningful to justify the quality.

---------- Post added at 01:48 AM ---------- Previous post was at 01:33 AM ----------

Let me just say it simply.

More information recorded in a compressed format (like everything consumer related is)...means BETTER quality on any output source it's displayed on.

That's just fact and the reason why it looks so stunning compared to other phones on your 1080p source.
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
That's a bold statement that m8, video quality on my DSLR is superb, not saying that 4K isn't good but it's not rivaling a DSLR.

On a side note, i can't see Sony adding that functionality to the stock rom, it'd take away one of the features that Sony would like to keep exclusive on the Z2.
[Xperia Z1 Q&A, Help & Troubleshooting] xXFlippyXx:
hope they'll giving it to us once the the z2 has aged for 2 - 3 months. specwise 4 recording is doable.

so the thing with 4k on 1080p:

to keep it short:

4k material can look better than 1080p on 1080p screens. This has something to to with the quality of colors.

While 1080p is a standard, 4k is not. Even If we get 4k recording it still needs to get a higher color depth compared to 1080p to see a difference between native 1080p and downscaled 4k material.

as far as the dslr is concerned:

you're absolutely right. as if this tiny little smartphone camera could ever match a dslr. those are two completly different levels of camera quality.

to get this straight:

up to now and with current smartphone technics, smartphones will never rival dslr. even if you'd have dslr technics built in smartphones it will still be inferior through the lack of size.

check the background and read why dslr are making those brilliant images.
[Xperia Z1 Q&A, Help & Troubleshooting] jonmorris:
I'm not expecting 4K video on the Z2 (or the Z1/Z1C if it's officially enabled for 4K, or gets support unofficially) to be the same quality as a pro camera (indeed, anywhere near that of a 4K camera from Sony sold to the TV/film industry) but I would like to be able to record 4K so that video captured today will look as good as possible on a new TV tomorrow.

A 4K video will look better on a 4K TV, which is what matters more than trying to spot differences when downscaled to 1080p or 720p.

The bigger issues are, storage space - both on the phone/memory card and wherever stored for backup (Dropbox etc) - and also the issue of heat.
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
4K is available officially on the Z2, that's one of it's features.
[Xperia Z1 Q&A, Help & Troubleshooting] jonmorris:
Read the whole sentence. I apologise if the bit in brackets made it less clear. If I remove that then I said;

I'm not expecting 4K video on the Z2 to be the same quality as a pro camera, but I would like to be able to record 4K so that video captured today will look as good as possible on a new TV tomorrow.

Hope that's clearer.
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
sorry :eek: Got ya :)

I'm not actually sure if it's a hardware limitation or not? I've been told it's the same camera but with some minor alterations, 4K could just be one of them, although like i said i'm not 100% on that.
[Xperia Z1 Q&A, Help & Troubleshooting] jonmorris:
Doesn't the Z2 have a newer version of the MHL spec such that it can output 4K video to a TV? I'm assuming the Z1 and Z1 Compact can't, so perhaps Sony feels that it wouldn't be good to add 4K recording but no way to view it, besides uploading the video to another device that can display on a TV.

I don't know about differences in the camera hardware itself.
[Xperia Z1 Q&A, Help & Troubleshooting] thiagomed:
Custom Kernel can do this

Fella, with custom kernels you can do it, look at this thread:

http://xdaforums.com/showthread.php?t=2539008&highlight=c6943
[Xperia Z1 Q&A, Help & Troubleshooting] halleyrokz:
4K is playable on my Z1 without Any Hiccups. I'm on Stock ROM 4.4.
[Xperia Z1 Q&A, Help & Troubleshooting] gregbradley:
Are you sure?

Which thread did you get the mod from?
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
[MENTION=4795979]thiagomed[/MENTION] and [MENTION=3168825]halleyrokz[/MENTION]

Not worried about playback, we're talking about recording 4K and if it's ever going to be possible or not.

---------- Post added at 06:04 PM ---------- Previous post was at 06:02 PM ----------

Z2 Uses MHL3 but I don't think that is a problem anyway, the cabling is the same and should be able to pass through anyway.
[Xperia Z1 Q&A, Help & Troubleshooting] halleyrokz:
No Mods. Stock ROM. Just rooted. Locked Bootloader. I tested 4K video recorded by One+ One. It. Played Smoothly.
[Xperia Z1 Q&A, Help & Troubleshooting] gregbradley:
I see, but I thought you meant 4k recording. Z1 cannot do that yet
[Xperia Z1 Q&A, Help & Troubleshooting] thiagomed:
But it possible

Yeah bro, that's what I'm talking about. Maybe I've copied a link of wrong thread, but I've seen in some thread here in XDA a custom kernel, that can make our z1 make a record in 4k. I'll search and post here...

OBS.: Sorry for bad english, correct me plz!
[Xperia Z1 Q&A, Help & Troubleshooting] dontbelive:
Maybe 4k recording will be ported from z2 :) hope the best
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
Very doubtful chaps. If the dev's can't do it here then it's most likely not going to be done. Sony have got this camera wrapped up tight.

For me it's a waiting game for the 1+1.

Sell this bad boy and get the show stopper.

www.oneplus.net
[Xperia Z1 Q&A, Help & Troubleshooting] poog:
It's been done.

http://xdaforums.com/showthread.php?p=53165575
[Xperia Z1 Q&A, Help & Troubleshooting] dlads:
I stand corrected, glad it's been done. :)
[Android General] Hnk1:
Hi there

I have seen NO working CUSTOM ROM for Xperia L and I was wondering if there is anyone who is interested in development for Xperia L. The device is here since May 2013 and it is really a shame.

Our community consists of developers working on small scale and thus we are having quite difficulties in working out for a COMPLETE ROM.

IF anyone is interested, Xperia L offers you full support and can try to offer donations if possible so you can buy the device. If interested, please help Xperia L community before it is too late and we never get any Custom Roms.

We believe our device requires your support and CM/AOSP/ and other cool ROMS love from you. If you need any other information, do not hesitate to write back here.

Sony Xperia L Forum

http://xdaforums.com/xperia-l

Specifications :

Qualcomm MSM8230 Snapdragon

Dual-core 1 GHz

Adreno 305

1 GB RAM

Android 4.2.2 Stock
[Android General] Joel16:
yes, I agree with you. we need cm too
[Android General] Dark Passenger:
Hi,

just saying this has about 0.1% chances of attracting developers if i may suggest why not start a bounty for device development like those done for moto x root or ones for s-off for htc devices.

Regards,

Dhruv

also an alternative to paypal and credit cards is bank transfers.
[Android General] Hnk1:
I'll love to put a bounty however, I'm not sure if I'll have enough donations for that. Many a times a bounty is promised but never given once the ROM is made.

Bank transfers are fine but what If your donation is worth 5$ and you end up paying 20 just to transfer it!

If you have any other suggestions do let me know.

Our community is ready to help a developer buy the device so they can work on it!
[Android General] naitik2012:
yea we need CM/AOSP badly and we will provide every possible help

thanks :)
[Android General] Joel16:
Xperia L is a great phone with great specifications. It runs all games without any lagg. Well that's not what this thread is about but yeah

In overall it's a pretty good phone that developers should consider buying :)

---------- Post added at 02:33 AM ---------- Previous post was at 02:32 AM ----------

Xperia L is a great phone with great specifications. It runs all games without any lagg. Well that's not what this thread is about but yeah

In overall it's a pretty good phone that developers should consider buying :)
[Android General] Hnk1:
we can not do much without developers.
[LG Optimus G Pro] roshandes:
Hi guys,

I have managed to deodex LG E988 indian version rom.(except few apps) as i am getting error while doing it.. if anyone knows about deodexing thn please pm me i will share the link for pending to deodex apps..
[One (M7) Android Development] ssrij:
After the success of my CyanogenMod 11 Beta ROM, I present to you:

Alpha version of AOKP for HTC One! Google apps pre-installed, rooted ROM and BusyBox installed!

THIS IS AN UNOFFICIAL AOKP ROM

What is AOKP:

AOKP stands for Android Open Kang Project. It is a custom ROM distribution for several high-end Android devices. The name is a play on the word kang and AOSP (Android Open Source Project). The name was sort of a joke, but it just stuck, just like our infatuation with unicorns. We fork the source code of Android that Google puts out in the open with every major version release, and we then add the magical unicorn bytes (read: we add some of the coolest features that are both useful and make your ROM awesome). With AOKP, you can generally do a lot more with your device than what you could do with the original firmware that came installed on it.

What is the aim of this ROM (and some other info):

The aim of my ROM is to provide updates as soon as code gets committed, remove features which aren't necessary, fix bugs, optimize the code and add my own features, like inbuilt IR app, OTA updates and more. Please don't ask for ETAs, I am studying in school (final year, ending in March) so I really can't provide exact release date for a particular build, at least not before March. I'll be trying my best to push out stuff as fast as I possibly could, however. I hope you guys enjoy using my ROM!

Changelog:

23/11 - ALPHA #1

- Initial release

What works:

WiFi

Camera

Bluetooth

2G/3G/LTE

Audio

All sensors

Location services/GPS

All inbuilt apps

Audio and video playback (720/1080p)

IR Blaster

Tap & Pay

What doesn't work at all

ART

Screenshots:

Credits:

AOKP

BULLDOZE (kernel)

Source code:

AOKP: http://github.com/aokp

Kernel: https://github.com/CyanogenMod/android_kernel_htc_m7/tree/cm-11.0

Download (DEODEXED)

ALPHA 1: http://www.mediafire.com/download/wysgcwaaoaqg40r/aokp-m7ul_signed_112413_210357.zip
[One (M7) Android Development] toolhas4degrees:
Are you and bulldoze making these together or are you just kanging him and adding minimal fixes? just wondered bc he posted this yesterday with only a call issue and no tweaks.