For downloading/encoding movies for viewing on the Sensation, what is the optimal resolution/format? For example, would 480p be sufficient or could I actually realize and appreciate a 720p/1080p quality movie on the device?
960*540 is the native resolution. The answer is pretty obvious then.
Obvious because 480p is underkill and 720p is overkill?
Therefore, encode your videos at 960 width.
Related
Suppose i turn on the HD feature to watch videos on YouTube. Does my phone use more bandwidth streaming if it has a higher resolution screen? Or is the same video being downloaded and made to fit my lower resolution screen resulting in identical data consumption?
Another example would be YouTube.com offers resolutions of 380p/480p/720p/1080p. Does the EVO(800x480) stream at 480p on HD whereas the EVO 3D(960x540) streams at 720p and crops the picture? Or do both Stream at 720p and crop the picture?
If it is the former it seems the WVGA (800x480) on the GSII might be a better idea than the 720p display on the Nexus Prime. You can hardly stream HD videos over 3g/4g as it is and a lot of people don't have unlimited data plans.
Maybe someone could post results comparing streaming data consumption of the same video on an EVO vs EVO 3D to get an idea...
BUMPbUMPbU
The bigger the resolution of the youtube video the more bandwidth it needs. The same video (let's say 720p) needs the same amout of data on 2 different phones. Higher resolutions also have higher quality audio and cropping is a local procedure, after the date has been transferred. So the amount of data watching a 720p video on EVO and EVO 3D should be the same.
or does it send 480p which our phone then spreads over qHD?
If the latter, than maybe no advantage to qHD over wvga when videos are concerned...
tanman1975 said:
or does it send 480p which our phone then spreads over qHD?
If the latter, than maybe no advantage to qHD over wvga when videos are concerned...
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I'm not sure but enabling HQ via youtube, still brings back crappy video quality.
I know youtube compresses data, and that's why its kinda blocky, but on my iPod touch 4th gen, the same video will look amazing!! It looks like on iOS they are using the 1080p or 720p videos if available whereas on my sensation it looks like they use 360p videos. I hate that.
It does on netflix. it optimize the stream base on your connection but I don't think it is 720p or 1080p. Probably need better software support not really the hardware fault.
Its all based on the ones providing the video. netflix/youtube have poor quality. but then again youe tube is based on other peoples cameras so if they have a good camera the video will be better. but just because you have a device that supports 1080p doesnt me everything you play will be in that quality. just means if you have a 1080p hd video your device will play it. the video itself may be a little better but not substantially .
It really sucks. Like Hgaara, the same video will look pretty awesome on my iPod touch 4th generation compared to my Sensation. Oh well.
agreed.
But if you got to youtube website you can specify 360p - 1080p when available.
But it's obvious youtube HD pumps out some "optimal" resolution to android phones.
I was just curious if it pumps out qHD ( 540 x 960 ) feed to our phones or 480p
Same for netflix
---------- Post added at 03:33 PM ---------- Previous post was at 03:18 PM ----------
I've answered my own question with a bit of experimentation
here is my test video if you'd like to try to duplicate my efforts
the video is 720p
This is all on the Sensation of course:
First I watched it using the youtube ap
Then I watched it on youtube's webpage using Dolphin HD in desktop mode.
the video quality is amazingly better. Pretty crisp and smooth in fact.
So the lesson is: for better video quality on youtube,
don't use the ap.
don't browse YouTube in mobile mode
DO use desktop mode (Easily done in Dolphin HD)
DO remember to select a higher resolution. Use 1080p if available because the Sensation does a much smoother job of displaying 1080p on qhd rather than 720p because of the perfect 4 pixel to 1 ratio between 1080p and qHD
You might get a warning from youtube that the video is not optimized for mobile, but trust me, our beast of a phone can handle it.
This isn't another 720p thread!
It's just 16:9 lol
I just scattered this forum searching for an answer, reading through all of the 720p threads related to Nexus S.
I find 720x480 stupid, can we at least record in some Standard 16:9 resolution if not in 720p? And what is the maximal resolution it can take video?
Why are all of these Sticks stuck at 30fps don't most HDTV's do 1080P 60fps?
I get confused a little with all the fps and all the Hz?
FPS source dependent
mc_365 said:
Why are all of these Sticks stuck at 30fps don't most HDTV's do 1080P 60fps?
I get confused a little with all the fps and all the Hz?
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Standard NTSC and PAL videos are recorded at 30fps (29.97 actually) and Film is recorded at 24fps. Human eye doesn't distinguish frame rates higher than 30. Sticks are not hardware limited to 30fps, but they are hardware limited to high bitrates at high resolution. 60fps at 320x240 is not an issue.
That would be an interesting experiment. Play a 1080p clip at 24fps, 30fps and 60fps and see if you can tell the difference? Let use know if you find a 24/30/60fps video clip so we can try it also. Also HDTV sets under 40 inches look the same in 720 and 1080 due to pixel density.
mc_365 said:
Why are all of these Sticks stuck at 30fps don't most HDTV's do 1080P 60fps?
I get confused a little with all the fps and all the Hz?
Click to expand...
Click to collapse
The difference between fps and hz can be confusing especially in different contexts. I'll see if I can explain the TV/movie context a little.
fps is "frames per second" and is the measure of quantity. Most movies aren't more than 30fps. As cesar33 said you'll get 30fps, 29.97fps or 24fps. However some newer movies are coming out (at least to cinemas) with higher frame rates.
hz is "hertz" and can be thought of as updates per second. The reason TVs do 60hz (or even 120hz) is either for 3D (needs two times 30fps, one for each eye) or for smoothing algorithms. The smoothing is to make fast motion less jumpy, so the TV creates new frames to make a 30fps movie look like 60fps.
Like cesar33 said, 30fps is the acceptable minimum for motion so there's not much reason to make these Android sticks twice as expensive (exaggeration maybe?) by pushing out 60fps.
PS. some film buffs hate anything higher than 24fps because it looks less "magical" in the cinema... true story, Google it
Hi, just want to find out if the ultra users record fhd at 60 frames with video stabilization on? I have done this twice now and the footage really isn't any good. The center is nicely focused, but to the sides it looks very soft/blurry. in 4k it looks great, but I stream the videos via wireless to my tv and with the 4k there is too much buffering...fhd streams fine. converting the videos from 4k to fhd seems a waste of time as it takes really long on my old pc. At this stage I feel it's almost worth the effort to convert the 4k to fhd to stream as there is such a big difference on the phone between the 4k and fhd. I don't understand all the technical jargon regarding 4k/resoltion etc but how much do I loose quality wise converting from 4k to fhd? The videos I take is from my daughter doing fast action sports(netball). The footage is in daylight with a lot of sun. Even the picture I take while recording is okay and some is blurry/double image, exactly like in the video. The attached shows the blurry effect...it's not motion blur, as per attached they were basically standing still. I use the dji mimo app sometimes and currently it only supports fhd 30 frames. The quality is much better via the app then the standard camera app
Anybody that has an opinion?