Check it out , from minute 1:51 http://www.youtube.com/watch?v=bxeFQ6U4uRM&feature=player_embedded
The iPhone 4 does the same,i wonder what is the reason for that...
darksaber73 said:
The iPhone 4 does the same,i wonder what is the reason for that...
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i read about the iphone doing the same but i have no clue
ya read that too on gsmarena.. hope they fix it by release time.
It isn't a really terrible issue,but i can't help but keep wondering what's the reason for that zoom.
It wasn't solved on iphone 4 so i guess there's a "deep and technical" reason beyond that.
Maybe the 1080p doesn't divide well into the 8 megapixel camera for easy conversion, so they make the viewable area slightly smaller so it is a nice multiple of the 1080p, because the processor can't handle the load otherwise. Shot in the dark.
Could it be that you can't display a full 1920x1080 video in a 800x480 screen?
Sent from my Captivate.
MikeyMike01 said:
Could it be that you can't display a full 1920x1080 video in a 800x480 screen?
Sent from my Captivate.
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i doubt it because you cannot display full 720p either ie 1280x720 but it doesnt crop/zoom that image when you video record..
darksaber73 said:
The iPhone 4 does the same,i wonder what is the reason for that...
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Click to collapse
No it doesnt. Double tap your screen and it zooms out.
MikeyMike01 said:
Could it be that you can't display a full 1920x1080 video in a 800x480 screen?
Sent from my Captivate.
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Naturally it is so and also logical !
How should a 800 x 480 pixel screen show full resolution of 1080 p ? It is not possible physically. Only via HML on the TV-screen You will have full HD res.
troed said:
Naturally it is so and also logical !
How should a 800 x 480 pixel screen show full resolution of 1080 p ? It is not possible physically. Only via HML on the TV-screen You will have full HD res.
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but how can it display 1280x720?
Chad_Petree said:
but how can it display 1280x720?
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1) Scale 1280x720 to 800x480, in which case you get an aspect ratio error of 1% which is more than acceptable.
2) Scale 1280x720 to 800x450 and pad the rest with black bars.
Is that what was asked?
For comparison purposes, my Captivate does this also. 720x480 is zoomed; 1280x720 is zoomed further.
martino2k6 said:
1) Scale 1280x720 to 800x480, in which case you get an aspect ratio error of 1% which is more than acceptable.
2) Scale 1280x720 to 800x450 and pad the rest with black bars.
Is that what was asked?
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450? did you watch the video? the problem seems to be only in 1080p and as far i know 720p and 1080p have the same aspect ratio
Chad_Petree said:
450? did you watch the video? the problem seems to be only in 1080p and as far i know 720p and 1080p have the same aspect ratio
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450 because it will be the same AR. Anyway, apologies. I should have read further back to see what the actual problem behind the discussion was.
Do we know the reason for this? All of the retail units are doing it.
Its simply a lower viewing angle at higher resolutions, its not that uncommon on video recording devices.
not sure I understand?
The youtube video in the OP shows RECORDING, not playback, right?
When it records in 1080p, the screen shows a zoomed in picture.
This is because the phone cannot take raw 1920x1080 video stream from the camera, and at the same time be encoding it as 1080p and saving it to memory, and downscaling that raw 1920x1080 stream to 800x480 to display on screen. This phone is powerful, but not that powerful. Or maybe that youtube video was of not final software.
Yes it's zoomed, and that's a hack to make it possible to record 1080p.
They've basically just cut off the pixels on the side, and are using 1920x1080 pixels from the centre of the camera's sensor.
This way, it doesn't have to process the "extra" pixels on the side, do pixel binning etc. The sensor is decent enough that 1080p still looks crisp at native res.
Rawat said:
Yes it's zoomed, and that's a hack to make it possible to record 1080p.
They've basically just cut off the pixels on the side, and are using 1920x1080 pixels from the centre of the camera's sensor.
This way, it doesn't have to process the "extra" pixels on the side, do pixel binning etc. The sensor is decent enough that 1080p still looks crisp at native res.
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Ahh that is what they were showing Makes sense, just like the iP4 then - thanks for the explanation.
Related
I was just thinking now that the phone should be hitting people's hands soon, it would be good to discuss the best 1080p video to have on the phone when you get the inevitable question from others such as what is the screen like? Or How is it playing movies?
Does anyone have links to stunning videos that we can download and use?
Sent from my Nexus One using XDA Premium App
digitaldw said:
I was just thinking now that the phone should be hitting people's hands soon, it would be good to discuss the best 1080p video to have on the phone when you get the inevitable question from others such as what is the screen like? Or How is it playing movies?
Does anyone have links to stunning videos that we can download and use?
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http://www.youtube.com/watch?v=UWh9QHCRdZg&feature=youtu.be
http://www.youtube.com/watch?v=eaCTK7DEEJk&feature=related
I think he meant having some demo of HD Videos to show off the quality of the screen. Not videos taken from the phone it self.
dhruvmalik said:
I think he meant having some demo of HD Videos to show off the quality of the screen. Not videos taken from the phone it self.
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That is exactly it!
Sent from my Nexus One using XDA Premium App
dhruvmalik said:
I think he meant having some demo of HD Videos to show off the quality of the screen. Not videos taken from the phone it self.
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Here it is a little
http://www.youtube.com/watch?v=XKQN2hG7z0g&feature=related
http://www.youtube.com/watch?v=8xbzXbCj_aw&feature=related
A blu-ray rip of any Pixar movie.
drleospaceman said:
A blu-ray rip of any Pixar movie.
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or Avatar, Benjamin Button, Inception etc.
this is the most stupid thread of all time
virussnake said:
this is the most stupid thread of all time
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+1
lol, looking at youtube "not" HD movies to see if the HD movie on the phone looks ok
This is a very bad example, to trully show the screen quality the videos should be converted at the max resolution of the screen.
Puting bigger resolution videos than the max native screen res will result in pixelation, because the phone then has to convert the video in realtime which is a much worse conversion than first doing it with a decent software and then displaying it on the screen without need for picture rescaling.
TheWarKeeper said:
This is a very bad example, to trully show the screen quality the videos should be converted at the max resolution of the screen.
Puting bigger resolution videos than the max native screen res will result in pixelation, because the phone then has to convert the video in realtime which is a much worse conversion than first doing it with a decent software and then displaying it on the screen without need for picture rescaling.
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a voice of reason. I got tired saying this. a good quality 480p (standard resolution) video will play the best on SGS2 , to fully and natively fill the 480x800 screen.
kreoXDA said:
a voice of reason. I got tired saying this. a good quality 480p (standard resolution) video will play the best on SGS2 , to fully and natively fill the 480x800 screen.
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indeed, ppl see "HD" on screens or phones these days and automatically think it means the screen has 1920*1080resolution
kreoXDA said:
a voice of reason. I got tired saying this. a good quality 480p (standard resolution) video will play the best on SGS2 , to fully and natively fill the 480x800 screen.
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not to be a **** but isn't 480i standard resolution and 480p the first step towards hd? again could be completely daft but that's my understanding.
like i = interleaved, p = progressive
thus
p > i ?
teh_pwnage said:
not to be a **** but isn't 480i standard resolution and 480p the first step towards hd? again could be completely daft but that's my understanding.
like i = interleaved, p = progressive
thus
p > i ?
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I would call 480i an interface, not a resolution.
Most standard DVDs (and all modern standard DVDs) have video on them with 480 lines of resolution (480p). Some earlier DVD players (like from 10-15 years ago) could only send that 480 lines of data to TV interleaved (240 lines one frame, 240 next frame). All modern DVDs connected with component or HDMI send the unaltered 480p to the TV.
In phones, you use progressive by design (every frame is shown as full 480 lines of picture)
When you take a 1080p bluray and send that 1080p video to phone straight away, your phone will downconvert 1080p to 480p to show on a 480x800 screen. That downconversion process will produce WORSE resulting picture than a studio-cut original 480p standard DVD.
kreoXDA said:
I would call 480i an interface, not a resolution.
Most standard DVDs (and all modern standard DVDs) have video on them with 480 lines of resolution (480p). Some earlier DVD players (like from 10-15 years ago) could only send that 480 lines of data to TV interleaved (240 lines one frame, 240 next frame). All modern DVDs connected with component or HDMI send the unaltered 480p to the TV.
In phones, you use progressive by design (every frame is shown as full 480 lines of picture)
When you take a 1080p bluray and send that 1080p video to phone straight away, your phone will downconvert 1080p to 480p to show on a 480x800 screen. That downconversion process will produce WORSE resulting picture than a studio-cut original 480p standard DVD.
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alright that's just how I understood it... that and an xbox 360 running on my old 32 inch tube tv won't give me a resolution higher then 480i lol
Edit: another question though... does 480 lines necessarily mean it's 480p? I though it also had something to do with the post processing done on the monitor as well?
teh_pwnage said:
alright that's just how I understood it... that and an xbox 360 running on my old 32 inch tube tv won't give me a resolution higher then 480i lol
Edit: another question though... does 480 lines necessarily mean it's 480p? I though it also had something to do with the post processing done on the monitor as well?
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Click to collapse
If your TV is capable of physically addressing 480 lines on the screen, it DOES have resolution of 480. However if the circuitry can only produce those 480 lines in two passes by 240 lines, each pass showing every other line, then you are seeing 480i picture.
CRT TVs where a ray is used to quickly draw every single line, and that ray is not quick enough to draw 480 lines for every single frame, it would use 480i to show half frame each time.
480 lines for each frame are stored on your DVD. If you connect DVD player to TV with a composite cable you can only pass 480i signal. Same if your TV can only accept composite, or produce interlaced picture.for any reasons (see CRT example above).
With phones, you are not passing signal over any cables, and LCD/oled screens have enough power in the hardware to show all 480 lines at each frame. So you always use P in phones for videos.
kreoXDA said:
If your TV is capable of physically addressing 480 lines on the screen, it DOES have resolution of 480. However if the circuitry can only produce those 480 lines in two passes by 240 lines, each pass showing every other line, then you are seeing 480i picture.
CRT TVs where a ray is used to quickly draw every single line, and that ray is not quick enough to draw 480 lines for every single frame, it would use 480i to show half frame each time.
480 lines for each frame are stored on your DVD. If you connect DVD player to TV with a composite cable you can only pass 480i signal. Same if your TV can only accept composite, or produce interlaced picture.for any reasons (see CRT example above).
With phones, you are not passing signal over any cables, and LCD/oled screens have enough power in the hardware to show all 480 lines at each frame. So you always use P in phones for videos.
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Click to collapse
True but i would like to add that 480i not a simple limitation of CRT, there are hundreds of CRT out there who display resolution of 2048x1536.
The main problem was the bandwidth of the cables themselves and not by the CRT technology.
The 480i is indeed long gone, it was used when analog signals were simply not prepared to output such a high definition, therefor to overcome that situation, tvs were made with an interlaced technology, basically displaying the same frame twice on different vlines of the screen, giving you the illusion that the image was beying displayed at a bigger resolution, even though it wasnt.
So he is correct when he says 480p as a more standard resolution than 480i, especially since we live in 2011 now and Interlaced imo is not really a true resolution.
Think of 1280*720p vs 1920*1080i, alot of ppl would prefer 1280*720p over the interlaced especially since lcds cant handle interlaced outputs as good as crts can.
+1
Sent from my MB860
I'd just like to point out that I'm not completely retarded.... hell I'm a Computer Systems Engineering Student (what would happen if Electronics Engineering and Software Engineering had a kid) I know how CRT works lol I was just asking out of clarification no need to make a guy feel dumb
teh_pwnage said:
I'd just like to point out that I'm not completely retarded.... hell I'm a Computer Systems Engineering Student (what would happen if Electronics Engineering and Software Engineering had a kid) I know how CRT works lol I was just asking out of clarification no need to make a guy feel dumb
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i dont know how we made you feel dumb, youve asked a question, weve answeared it unbiased, with facts, thats all.
Do you typically record 720p or 1080p video? I use 720p because the files are smaller and I own a 720p tv. I wondered if 720p might offer better quality in low light conditions because it can average over more pixels in the sensor?
Also if the phone cpu is working too hard at 1080p does it reduce quality by upping compression and increasing lossyness?
Or is 1080p substantially better choice with the only downside being bigger files?
Generally I've found video IQ to be some what independent of resolution (on other devices) because compression generally goes up with resolution negating a lot of the benefits.
Thoughts?
Im using 720p cos it seems to me more clear and more smooth playing...plus less zoom.....
Sent from my GT-I9100 using XDA App
So 720p plays back smoother? Just on the phone screen or over hdmi?
Sent from my GT-I9100 using xda premium
jdurston said:
Do you typically record 720p or 1080p video? I use 720p because the files are smaller and I own a 720p tv. I wondered if 720p might offer better quality in low light conditions because it can average over more pixels in the sensor?
Also if the phone cpu is working too hard at 1080p does it reduce quality by upping compression and increasing lossyness?
Or is 1080p substantially better choice with the only downside being bigger files?
Generally I've found video IQ to be some what independent of resolution (on other devices) because compression generally goes up with resolution negating a lot of the benefits.
Thoughts?
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You are right, due to the binning would select the less noisier pixels and thus, the 720p video quality [except for resolution ofc ] would be much better.
I prefer 720p mode, only because of the field of view, it's just too narrow angle in 1080 mode.
Suppose it could come in handy if wanting to shoot something more distant but for indoor work it's not wide enough.
Sent from my GT-I9100 using XDA App
For me only 720p, because in 1080p I get a thin, purple line over the image that's also recorded into the vid, making my 1080 mode effectively broken.
I always thought 1080 as higher quality than 720p. Maybe for mobile this is different? Any source or test for this?
I'll try and shoot some comparison footage tomorrow.
Not sure if YouTube's compression will make the difference impossible to tell though.
Si14 said:
I always thought 1080 as higher quality than 720p. Maybe for mobile this is different? Any source or test for this?
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This is a totally different matter. Yes, 1080 pixels are "higher" than 720, obviously . But there are other factors also on our device.
I just record in 720p. Never really compared the two, but I don't need 1080p usually, so I' don't need those huge files either.
Good discussion on here, guess I'll have to switch to 720p now on.
I tried recording an apple in the 2 modes and to my surprise the 720p mode is indeed much clearer and wider then 1080p.
Go for 720p
I prefer 720 p... for my the quality is enought and the size of the videos is so better.
Regards
I was wondering if there was some sort of video upscaling present when videos of a lower resolution like 720p and 1080p videos are played. I mean, there's not much point in a QHD screen if even 1080p videos are pixelated, right?
What do you mean? They have to be upscaled, how else would you want to watch them? In a small window? 720p should upscale without any quality loss (1 pixel becomes 4 pixels), 1080p should look great too but with a slight, probably not noticable at such small screen size quality loss.
1080p videos look great on my Tab S 8.4 i don't see any reason why they wouldn't on the Note 4.
Sorry. Yeah, I mean lossless upscaling.
inadequate said:
Sorry. Yeah, I mean lossless upscaling.
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Lossless...?
Relative to the 1080p, sure, it's lossless as you don't lose any resolution from 1080p. Relative to 1440p? Well, in that case of course you lose resolution if the source video isn't 1440p.
Sorry, I'm not too sure what you mean by lossless.
Looks like I've been doing a shoddy job of explaining myself. Sorry about that.
I know that this may sound completely retarded, but what I meant to ask was this : Does the Note 4 have the same type of upscaling that is present in 4K televisions?
i was SO frustrated looking at similar threads here and around the web so i got in touch with CMOAR virtual cinema and asked them if its rendering 4k or just upscaling from 1080p.
It seems like it's just upscaled BUT since in the past they talked about the chance to have it run at TRUE 4k...they answered me and said:
we have prepared special build with 4k support (Rendering in 4k), fps are of course low but I think we will prepare build for public, because we know that many people just like us want to test it
Please send us a reminder at the end of the month
So get ready. We will FINALLY be able to see TRUE 4k. Maybe at 15fps..but that will be the best chance we had so far..in VR. I think there could be the chance to play a movie in the void theater at good fps.
but the main question i have left is...why didn't you do the same months ago?! I would have done it instantly if i had the phone!
d3stroyah said:
i was SO frustrated looking at similar threads here and around the web so i got in touch with CMOAR virtual cinema and asked them if its rendering 4k or just upscaling from 1080p.
It seems like it's just upscaled BUT since in the past they talked about the chance to have it run at TRUE 4k...they answered me and said:
we have prepared special build with 4k support (Rendering in 4k), fps are of course low but I think we will prepare build for public, because we know that many people just like us want to test it
Please send us a reminder at the end of the month
So get ready. We will FINALLY be able to see TRUE 4k. Maybe at 15fps..but that will be the best chance we had so far..in VR. I think there could be the chance to play a movie in the void theater at good fps.
but the main question i have left is...why didn't you do the same months ago?! I would have done it instantly if i had the phone!
Click to expand...
Click to collapse
Is that not what I'm already doing.....?
if im not mistaken you posted this and showed that 1080p or 4k things got smaller but readability was exactly the same (reading the smallest line). Am i wrong? In that case, that's not true 4k
other than that i couldn't find in this whole forum a true list of true 4k applications. It's like looking for gold!!
d3stroyah said:
if im not mistaken you posted this and showed that 1080p or 4k things got smaller but readability was exactly the same (reading the smallest line). Am i wrong? In that case, that's not true 4k
other than that i couldn't find in this whole forum a true list of true 4k applications. It's like looking for gold!!
Click to expand...
Click to collapse
Don't know what you're referring to. If you look at the resolution, it is 4k. When you watch a movie in VR, your virtual void screen is not going to be 4k, it's going to be far less. When my phone is in 4k, the virtual screen resolution is a couple hundred pixels bigger than when at 2k or 1080p.
If it renders in 4k, it's not really going to matter because you're not getting anywhere close to that in void cinema anyways? You're getting about VGA worth of a virtual screen. I think the most important factor with 4k for VR is less screen door effect, not the resolution? Then again, I just started messing with this so I'm not too knowledgeable.
i don't think it works like that..
in virtual cinema now you just have a 1080p resolution upscaled to 4k. SDE has nothing to do with the output resolution and it's going to be the same even outputting at 480p the whole screen.
Even so, putting true 4k in virtual cinema will mean having twice the detail there is now since every pixel will have a "true" color instead of a fake one (with upscaling). That will result in a greater resolution overall.
The only way to really test this out, is with their true 4k output cinema version. Now we're 95% just fooled with upscaling (and as they said 4k will have very low fps)
d3stroyah said:
i don't think it works like that..
in virtual cinema now you just have a 1080p resolution upscaled to 4k. SDE has nothing to do with the output resolution and it's going to be the same even outputting at 480p the whole screen.
Even so, putting true 4k in virtual cinema will mean having twice the detail there is now since every pixel will have a "true" color instead of a fake one (with upscaling). That will result in a greater resolution overall.
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If I'm not running AAA VR Cinema in 4K, then can you explain why my virtual cinema has a greater resolution then when running the phone at 2k or 1080p? Are you really going to notice that much more detail if you cram a 4k video into a VGA space or a 1080p one into that same space?
i guess the only way to find out would be 3 screenshots, one at each resolution from a 1080p source clip. 4k is twice as sharp as 1080p, for the same portion of screen. That means that something barely readable 1080p will be twice as sharp in 4k. The void size must be the same and 4k would actually display 2x times a 1080p image, not just 200px more
look, you posted these:
https://postimg.cc/image/nrqysn3y3/
https://postimg.cc/image/z5di3uegr/
the second is slightly higher resolution but the output is the same, resizing back the 4k to 1440p you have the same exact image...that's 100% upscaled, no true 4k happening at all, you would see a big difference going up (1440p is nowhere close 4k, it's jus 125% more than 1080p where 4k is 200% 1080p)
d3stroyah said:
look, you posted these:
https://postimg.cc/image/nrqysn3y3/
https://postimg.cc/image/z5di3uegr/
the second is slightly higher resolution but the output is the same, resizing back the 4k to 1440p you have the same exact image...that's 100% upscaled, no true 4k happening at all, you would see a big difference going up (1440p is nowhere close 4k, it's jus 125% more than 1080p where 4k is 200% 1080p)
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Dude, the function of that app is only to tell you the resolution of the virtual screen. What's within it is for reference purposes. It's not going to change.
reminder
I mean, 720p works just fine and all, but when it's docked it basically looks like you're taking a magnifying glass to the screen, as there's like a line between each pixel that's noticeably visible. You don't notice it in handheld obviously due to the size and resolution of that screen, but it can be annoying when it's hooked up into a 22' monitor that's right in front of muh face.
This build of Android is 1080p on the 720p screen & outputs 1080p unless you flash the 720p image.
Mechaghostman2 said:
I mean, 720p works just fine and all, but when it's docked it basically looks like you're taking a magnifying glass to the screen, as there's like a line between each pixel that's noticeably visible. You don't notice it in handheld obviously due to the size and resolution of that screen, but it can be annoying when it's hooked up into a 22' monitor that's right in front of muh face.
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Those spaces between each pixel are an effect of your display, not of the signal. The screen can't render natively in 720p unless it's a 720p screen, it can only render at its native resolution, which means the space between the pixels is the same no matter what.
Jdbye said:
Those spaces between each pixel are an effect of your display, not of the signal. The screen can't render natively in 720p unless it's a 720p screen, it can only render at its native resolution, which means the space between the pixels is the same no matter what.
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My monitor is 1920x1080p. I don't get that effect with my PC or when I have my Switch running normally and hooked into it. Only when in Android mode does it do that.
Jdbye said:
Those spaces between each pixel are an effect of your display, not of the signal. The screen can't render natively in 720p unless it's a 720p screen, it can only render at its native resolution, which means the space between the pixels is the same no matter what.
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You are 100% clueless. This build of Android is 1080p only unless you manually change the resolution with an app or flash the 720p image.
techjunky90 said:
You are 100% clueless. This build of Android is 1080p only unless you manually change the resolution with an app or flash the 720p image.
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That is completely besides the point. I wasn't talking about the ROM at all because it's irrelevant; it's simply not possible for a lower resolution to cause the effect they're describing.
Yeah LCD have fixed resolution. the space between pixel won't become easier to see when it's taking low resolution feed
The version of android I'm using seems to be 720p regardless of if it's docked or not and 60fps portable but only 30fps docked... I use the app screen resize to force 1080p when docked.
Where can I find the build that auto switches to 1080p when docked?