Database Users

[Q] Nexus 4 1080p Recording Vs 1080p Mkv

hello guys ,i want to ask if someone can explain this to me.
Nexus 4 records videos at 1080p in mpeg4 with 12Mbps
Movies we download etc are 1080p in mkv with 3-6 Mbps
The question is why do movies in mkv look so much better ??..is it a compression/container issue ?
Thanks !

Because the camera is crap..IMO.
Sent from my Nexus 4 using Tapatalk 2

scream4cheese said:
Because the camera is crap..IMO.
Sent from my Nexus 4 using Tapatalk 2
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besides that looking at the info from the 2 videos, theoretically nexus recordings must look better.
but i'm pretty sure i'm missing something significant in this comparison that's why i asked if someone who has more knowledge on this, can give me an explanation ...

The camera lens, and light sensors are no where near the quality of Hollywood cameras. The bitrate supports the quality but the camera can never deliver it. Its like the megapixel fight with still cameras. A 3 megapixel camera with a great lens and iso sensor can completely blow away a compact 14 megapixel camera with only so so hardware.

username8611 said:
The camera lens, and light sensors are no where near the quality of Hollywood cameras. The bitrate supports the quality but the camera can never deliver it. Its like the megapixel fight with still cameras. A 3 megapixel camera with a great lens and iso sensor can completely blow away a compact 14 megapixel camera with only so so hardware.
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thanks man ! i guess we can blame the crappy lens for this one ...i think this explains why s3 or htc one x videos are looking way better despite having a lower bit rate than nexus 4 videos ....

Exactly the lens and camera sensor quality is more important than the pixel account. I saw to many cheap 14 mega pixel cameras pictures that are worst than good 3 mega pixel pictures took with good old cameras. My Nexus 4 doesn't beat my old Pantech Element pictures...On the PC you see the differences.

rockfreak said:
hello guys ,i want to ask if someone can explain this to me.
Nexus 4 records videos at 1080p in mpeg4 with 12Mbps
Movies we download etc are 1080p in mkv with 3-6 Mbps
The question is why do movies in mkv look so much better ??..is it a compression/container issue ?
Thanks !
Click to expand...
Click to collapse
You cant compare. Such type of compare is irrelevant.
Movies are captured with professional cameras like RedOne at 4k resolution without heavy compression in raw format, further being processed and compressed by professional encoding softwares and so on...
Nexus 4 uses commercial consumer compression algorithm on the way, thus the output result is obviously worse.
That's is one of the major differences.

[Q] Lossless video zoom

Hello, I was reading a Galaxy Note 4 review and came across 2x lossless zooming for 30fps 1080p video recording and wondered why we don't have it.
Lossless zooming is great as it preserves detail in zoomed situations while keeping the file size big, unlike 4k recording which would consume lots of storage to record then zoom afterwards
As our phone supports 4k recording, doesn't the G2 have the ability to have lossless zooming capability?
If so, can someone tell me if there is there an app that enables us to do this, or someone, perhaps xdabbeb, can enable it for us??
Thanks

sjk971005 said:
Hello, I was reading a Galaxy Note 4 review and came across 2x lossless zooming for 30fps 1080p video recording and wondered why we don't have it.
Lossless zooming is great as it preserves detail in zoomed situations while keeping the file size big, unlike 4k recording which would consume lots of storage to record then zoom afterwards
As our phone supports 4k recording, doesn't the G2 have the ability to have lossless zooming capability?
If so, can someone tell me if there is there an app that enables us to do this, or someone, perhaps xdabbeb, can enable it for us??
Thanks
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Click to collapse
Lossless zoom is achieved when u have an optical lens movment.
I dont believe any of these phones have optical zoom.
You can't "enable" optical zoom. It literally means that the lesnses need to move back and forth. Like in cameras. You see the lens moving and adjusting to the zoom.

-MaoR- said:
Lossless zoom is achieved when u have an optical lens movment.
I dont believe any of these phones have optical zoom.
You can't "enable" optical zoom. It literally means that the lesnses need to move back and forth. Like in cameras. You see the lens moving and adjusting to the zoom.
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I thought it was a software thing on mobile phones where they increased video resolution and cropped it to show the area you are zooming in on so that the zoomed part remains 1080p??
For example, a quarter of a 4k video would be a 'zoomed in' 1080p one

sjk971005 said:
I thought it was a software thing on mobile phones where they increased video resolution and cropped it to show the area you are zooming in on so that the zoomed part remains 1080p??
For example, a quarter of a 4k video would be a 'zoomed in' 1080p one
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I guess.. It can't preserve detail so it has to be cropped.
It's like zooming into a picture in photoshop.

We have digital zoom only. Digital zoom scales an area up to "zoom" in. It blows up pictures making them look nasty.

This is a great question and I think the prior replies have missed the concept. Yes, our camera is like 8 or 12 megapixels, but 1080p HD video is like only 2 megapixels. So when we record video on our 8 megapixel sensors, the sensor "line-skips" to resolve only a 2 megapixel (1080p) image. When we zoom in, digitally, it keeps the same "line-skipping" design as non-zoomed. This results in a lower-than-HD resolution. It would be VERY SMART to adjust the line-skipping design, or not line-skip at all, on a digital zoom, thus still using 2 megapixels worth of photo sites to capture the "zoomed" image. This is the same concept as "sensor windowing" used on RED cameras when changing the resolution. I'm surprised this is not the new/standard way to implement digital zooming on ALL modern smartphones to preserve details and resolution when digitally zooming, because of course there is no optical zoom option.
Sent from my LG-D801 using XDA Free mobile app

Enter The Nexus said:
We have digital zoom only. Digital zoom scales an area up to "zoom" in. It blows up pictures making them look nasty.
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I am quite sure the note 4 does not have optical zooming. This is the reason it made me think and 'come up' with this idea.
Jackdup said:
This is a great question and I think the prior replies have missed the concept. Yes, our camera is like 8 or 12 megapixels, but 1080p HD video is like only 2 megapixels. So when we record video on our 8 megapixel sensors, the sensor "line-skips" to resolve only a 2 megapixel (1080p) image. When we zoom in, digitally, it keeps the same "line-skipping" design as non-zoomed. This results in a lower-than-HD resolution. It would be VERY SMART to adjust the line-skipping design, or not line-skip at all, on a digital zoom, thus still using 2 megapixels worth of photo sites to capture the "zoomed" image. This is the same concept as "sensor windowing" used on RED cameras when changing the resolution. I'm surprised this is not the new/standard way to implement digital zooming on ALL modern smartphones to preserve details and resolution when digitally zooming, because of course there is no optical zoom option.
Sent from my LG-D801 using XDA Free mobile app
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I do not know much of cameras so I do not fully understand what you(Jackdup) are saying, but I think you know what I mean
Just wondering, do you know of any apps that can do this, or know how this works? Maybe you can explain it to a developer to implement it in our devices
Thanks

U11 video recording nitpicking

I've been using the Galaxy S8 Plus until I received my solar red U11 yesterday (glad I waited, it's very nice looking). Anyway, I am very impressed with the photo image quality of the phone (it is very comparable to the S8), but I have a few nitpicks about the video recording:
1) No 1080p/60 mode. I really don't understand why it doesn't have a 60fps mode when even phones from 2016 had it? It has 1080p/30 and 1080p/120 (for slow motion), so why no 1080/60? Is it overheating concern?
2) No way to turn of EIS in 1080p video recording mode? While 1080p is very stable due to its combined OIS and EIS, it also crops the view significantly when recording video in this mode (compare it to 4k, which is quite a bit wider but has no EIS). Anyway, the EIS is nice if you want that, but I think there needs to be a toggle or option to turn off EIS and have the wide recording mode in 1080p that is like the 4k mode. As it stands, there does not appear to be a way to change this.
3) 6 minute recording limit in 4k. I guess it's also due to overheating concerns, but why not just make it unlimited and have the phone's temperature monitoring stop recording automatically if it gets to a certain temp? Some people are reporting overheating stoppages even before the 6 minutes, but in cooler environments, we may be able to record indefinitely in 4k.
Things I DO like about the U11's camera though...
1) Photo app and quality are excellent. Nice Pro mode too.
2) Glad I can lock exposure and focus during video recording very easily.
3) Focusing pulling with the touch screen is very nice on the U11 (it doesn't rock back and forth when focusing like many other phone cameras).
4) Audio recording options are very nice (3d audio vs hi-res, and acoustic focus)

https://www.xda-developers.com/htc-u11-updates-srgb-1080p60/

Conan1986 said:
https://www.xda-developers.com/htc-u11-updates-srgb-1080p60/
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Thanks! It's good to see that they are working on adding 1080p/60, though it appears to be a ways off.
Another thing that bothers me (when compared to the S8 or iPhone 7) is that I can't seem to take a photo while recording in 4k. I'm not sure if that's a software or hardware limitation, but I used that all the time on those phones. I really like using the squeeze to open the camera, take a photo, and switch between front and rear cameras though!

Travisimo said:
Thanks! It's good to see that they are working on adding 1080p/60, though it appears to be a ways off.
Another thing that bothers me (when compared to the S8 or iPhone 7) is that I can't seem to take a photo while recording in 4k. I'm not sure if that's a software or hardware limitation, but I used that all the time on those phones. I really like using the squeeze to open the camera, take a photo, and switch between front and rear cameras though!
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Try Open Camera on XDA, it works shooting 1080P without EIS and no time length limitation on 4K.

I've also see the same issue on the HTC 10 in regards to the 4k and taking a photo while recording if you can call it an issue. I suppose no one had complained about it and they left it unchanged

TheEndHK said:
Try Open Camera on XDA, it works shooting 1080P without EIS and no time length limitation on 4K.
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It's a nice camera app, thanks. Tried various settings in the app for video recording. Looks like no matter what framerate you choose, it can't go above 30fps. I thought maybe it would let me shoot 1080p/60, but nope (even when setting it to 60fps, it still records at 30). Also doesn't seem to be a way to take a photo while shooting video in this app? Nice that you can shoot longer than 6 minutes in 4k though (I didn't try it yet, but I assume it works).

wilpang said:
I've also see the same issue on the HTC 10 in regards to the 4k and taking a photo while recording if you can call it an issue. I suppose no one had complained about it and they left it unchanged
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I call it an "issue" only because I have come to expect it when shooting video now. In fact, I used it quite frequently on my iPhone and Galaxy S8. Being able to take a photo without interrupting the video recording is a pretty important feature, in my opinion. I suppose one could load up the video in software and capture a frame manually, but it's a feature that other flagships have, so I miss it.

Travisimo said:
It's a nice camera app, thanks. Tried various settings in the app for video recording. Looks like no matter what framerate you choose, it can't go above 30fps. I thought maybe it would let me shoot 1080p/60, but nope (even when setting it to 60fps, it still records at 30). Also doesn't seem to be a way to take a photo while shooting video in this app? Nice that you can shoot longer than 6 minutes in 4k though (I didn't try it yet, but I assume it works).
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60fps will come with one of the next OTA updates.
Sent from my htc_pmeuhl using XDA Labs

Travisimo said:
I call it an "issue" only because I have come to expect it when shooting video now. In fact, I used it quite frequently on my iPhone and Galaxy S8. Being able to take a photo without interrupting the video recording is a pretty important feature, in my opinion. I suppose one could load up the video in software and capture a frame manually, but it's a feature that other flagships have, so I miss it.
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Indeed, my old year 2012 HTC One S supported shooting FHD video and taking a real photo at the same time and I owned a Galaxy S6 support that feature too. However, I think during 4K recording that no phone could take a real photo, all they do is just capture a frame from video clip and pretend that is a photo.

TheEndHK said:
Indeed, my old year 2012 HTC One S supported shooting FHD video and taking a real photo at the same time and I owned a Galaxy S6 support that feature too. However, I think during 4K recording that no phone could take a real photo, all they do is just capture a frame from video clip and pretend that is a photo.
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Click to collapse
Right, I understand it's not an actual "photo" at the highest resolution, but I would still like the convenience of capturing a frame during 4k video recording like I can on all of the other flagships phones.

Wow I'm glad I found this post, I thought I was going crazy with the issues you mentioned, especially the cropped 1080p video! I hope they can fix that with the 60fps update, because it is really annoying.

Hi, 60fps still not possible?

vojta20vt said:
Hi, 60fps still not possible?
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1080p60 is being introduced in stock ROMs with versions 1.26 and higher.

Do you know if EIS for 4k video is planned? Thinking about buying the U11 instead of the much too expensive Pixel 2, but the lack of EIS in this case is a bit of a bummer.

Activate Slow Motion with sounds and 240fps video?

Hi! A friend of mine has Onples 3t and was able to activate Slow Motion with Sounds and 240fps video, is it possible to do the same on Oneplus 5?

As far as i know, there's certain limit as to what a lens can capture. And oneplus 5 is not capable of that.

himanshuladia said:
As far as i know, there's certain limit as to what a lens can capture. And oneplus 5 is not capable of that.
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Lens? :laugh: You mean sensor and ISP. IMX398 is most likely same sensor like IMX298(3T) with added Dual PDAF. What makes you think it is not capable?

davfiala said:
Lens? :laugh: You mean sensor and ISP. IMX398 is most likely same sensor like IMX298(3T) with added Dual PDAF. What makes you think it is not capable?
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Oneplus 3t too, isn't capable of capturing 240 fps. Get your facts right.

No news?

saverius93 said:
No news?
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sorry but without the hardware this is going to be impossible.
you can stretch what we already have but it will never be the same.

Software HDR decoding from Pixel XL

Has anyone looked into this already?
https://m.androidcentral.com/youtube-hdr-support-now-available-pixel-phones
Since the Axon 7 has exactly the same panel as the Pixel XL it'd be nice to see HDR support on it, even though it might look worse

Choose an username... said:
Has anyone looked into this already?
https://m.androidcentral.com/youtube-hdr-support-now-available-pixel-phones
Since the Axon 7 has exactly the same panel as the Pixel XL it'd be nice to see HDR support on it, even though it might look worse
Click to expand...
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Use this http://iytbp.onlineyoutube.com/, you can find links to the XDA thread and discord server at the bottom

never mind

KevinX8 said:
Use this http://iytbp.onlineyoutube.com/, you can find links to the XDA thread and discord server at the bottom
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Thanks, I didn't know about that mod.
After installing it, I managed to enable HDR options for the videos, but we lose the 1440p resolution, the videos don't play smooth anymore and the image quality is even worse. Using either S8 or Pixel XL manufacturers/models.
At least I have black theme and background playback.

aLexzkter said:
Thanks, I didn't know about that mod.
After installing it, I managed to enable HDR options for the videos, but we lose the 1440p resolution, the videos don't play smooth anymore and the image quality is even worse. Using either S8 or Pixel XL manufacturers/models.
At least I have black theme and background playback.
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YouTube locks HDR videos to 1080p for anything that is not a pc or chromecast ultra. Normal videos should be unchanged and still have 1440p

KevinX8 said:
YouTube locks HDR videos to 1080p for anything that is not a pc or chromecast ultra. Normal videos should be unchanged and still have 1440p
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I'm using an adaptation from another user ( @raystef66 i think?). Would this work even then?
I'll try anyways and report back

Choose an username... said:
I'm using an adaptation from another user (@raystef66 i think?). Would this work even then?
I'll try anyways and report back
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Click to collapse
No, do not use unofficial versions only use the official one

@KevinX8,
Hi, as far as I can see, there is no 1440P for video, so what is the issue with your phone, can you make itmore clear? Thanks!

William Guo said:
@KevinX8,
Hi, as far as I can see, there is no 1440P for video, so what is the issue with your phone, can you make itmore clear? Thanks!
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Google has limited HDR on android to 1080p, if you want a higher res HDR you must use a chromecast ultra or supported pc

aLexzkter said:
Thanks, I didn't know about that mod.
After installing it, I managed to enable HDR options for the videos, but we lose the 1440p resolution, the videos don't play smooth anymore and the image quality is even worse. Using either S8 or Pixel XL manufacturers/models.
At least I have black theme and background playback.
Click to expand...
Click to collapse
What are the model/manufacturers you have to use? I used 'google' and 'Pixel XL' but it seemingly wasn't right xd

@Choose an username..., @aLexzkter ,
Have you fixed your phone's problem? Which model are you apply when this issue happen on your phone? Usually, there is no 1440 for video, are you sure?

William Guo said:
@Choose an username..., @aLexzkter ,
Have you fixed your phone's problem? Which model are you apply when this issue happen on your phone? Usually, there is no 1440 for video, are you sure?
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This was not a problem at all. The thing is that enabling HDR for Youtube limits the quality to 1080p hdr. This is basically a technical limitation and is not a problem of the phones.

Choose an username... said:
This was not a problem at all. The thing is that enabling HDR for Youtube limits the quality to 1080p hdr. This is basically a technical limitation and is not a problem of the phones.
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It's a limitation put in place by Google themselves to sell more chromecast ultras, only them and pcs are allowed to stream 4k HDR from youtube

KevinX8 said:
It's a limitation put in place by Google themselves to sell more chromecast ultras, only them and pcs are allowed to stream 4k HDR from youtube
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still, the point of this was to tell him that we are not having a problem in our phones