It just occurred to me a bit ago that this could be why my 720p videos suck more then the next lesser resolution.
Sent from my PC36100 using XDA App
I have a class 6 and havent seen an improvement over class 2, the video records at a slower speed than your card can handle so it shouldn't matter,
I can backup roms quicker though
thank you for the reply.
so the crappy 720p video was a marketing scam or what?
i love this phone, and i thought the video shot very good till i noticed that it wasnt set to 720p, so i bumped it up thinking it would look even better....lol it looks worse.
Umm lets see:
1280*720 = 921'600 pixels
Assume that the camera records @ 8 bpp (24 bit color) * 24 fps = 921'600 * 24 * 24 = 530'841'600 bps... that is 531 Mbps or 63.28 MB/s.
So theoretically, yes a higher speed media would yield a better quality (note that the calculations above do not take in consideration the CPU and the compression, also notice that the sound is not included). Even at the crappy 12 fps, the required sustained speed is still higher than any microsd card out there.
Calculations taken as reference from here
agreed i have a class 6 micro sd n the video quality still sucks
fenixjn said:
Umm lets see:
1280*720 = 921'600 pixels
Assume that the camera records @ 8 bpp (24 bit color) * 24 fps = 921'600 * 24 * 24 = 530'841'600 bps... that is 531 Mbps or 63.28 MB/s.
So theoretically, yes a higher speed media would yield a better quality (note that the calculations above do not take in consideration the CPU and the compression, also notice that the sound is not included). Even at the crappy 12 fps, the required sustained speed is still higher than any microsd card out there.
Calculations taken as reference from here
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Click to collapse
I think the various codecs and compression make these numbers much less significant, but since I don't know the exact numbers I'm would have to speculate on how much the sd card speed matters.
I have heard that for some cameras the sd card speed can affect video capture.
Probably the way the phone handles the compression is the major cause of choppiness for our phones though.
they compress the video so the crappy class 2 cards the phones come with can keep up, someone would have to change the codec so it doesn't compress it as much.
Related
Hi,
I'm looking for a stable PPC Phone and have narrowed my choices down to the XDA IIi (Alpine) and IIs (Blue Angel).
I'm currently leaning towards the XDA IIs as it seems to have a stronger user base, has an inbuilt keyboard and almost all the features of the IIi - the IIi's 1.3MP camera is a non issue for me, IIi's BT 1.2 is only a revised implementation to prevent inteference with Wi-Fi networks, both have 128MB RAM, ROM size is irrelevant taking into account the prices of 2GB SD cards today. The 520Mhz (IIi/Alpine) vs 400Mhz (IIs/Blue Angel) clock speeds is the only disconcerting factor - I've read reviews that vouch this difference is not noticeable in general usage of the device, but can affect gaming/video playback.
I need some reassurance if the XDA IIs' PXA263 400Mhz CPU can adequately handle video playback of networked video files over Wi-Fi with TCPMP -- not re-encoded files, but High quality 1500Kbps 6xx * 4xx resolution XVIDs with AC3/MP3 audio. According to this link on TCPMP's webpage - http://blogs.shintak.info/articles/11359.aspx - Blue Angel devices don't seem very capable at handling very high quality XVID/DIVXs...?
If anyone is currently using the IIs/PDA2K and TCPMP with HQ XVID/DIVX please share your experiences as this feature is particularly important to me. In fact the large 3.5" screen size on the IIi/IIs is the only reason that I'm not considering the newer Atom/Prophet/Wizard platforms!!
Thanks,
Vin
For a small amount of money i have over-clocked my XDAIIi to 663Mhz using XCPUscalar, very nice! It's about 30% faster, I use very high quality AVI files. I would assume you can do the same for the IIs but not quite the 663, 30% on 400Mhz maybe?
The IIs will over clock upto a maximum of 472MHz using the XCPUscaler, the big benefit in using this application (to me) is when on auto scale with CPU load, quite often it will slow the unit down reducing the battery power and therefore extending the battery usage, not many applications need full power all the time.
As for the inbuilt keyboard, I tried it for a couple of days then gave up - buttons too small to be of practical use IMHO.
Never tried video over a wifi connection but the device will quite easily play back video from the memory card - Mike
mikealder said:
The IIs will over clock upto a maximum of 472MHz using the XCPUscaler
Click to expand...
Click to collapse
really? mine is running fine @ 597mhz
great, so the IIs can be overclocked for gaming/video playback!
but have you actually tried to watch a high resolution, 1000+kbps DIVX/XVID file over a WiFi connection? I really need to know if this is possible, because if i have to manually copy videos to the SDcard and/or re-encode videos then I'm better served by my PSP with its 4.2inch screen!
And if wireless/hassle free movie watching if taken out of the equation, i'm not going to buy a IIi/IIs today - i'd rather get a Eten M600 (Atom clone) or the HTC Wizard (imate K-Jam/XDA Mini S)...
mikealder said:
The IIs will over clock upto a maximum of 472MHz using the XCPUscaler, the big benefit in using this application (to me) is when on auto scale with CPU load, quite often it will slow the unit down reducing the battery power and therefore extending the battery usage, not many applications need full power all the time.
As for the inbuilt keyboard, I tried it for a couple of days then gave up - buttons too small to be of practical use IMHO.
Never tried video over a wifi connection but the device will quite easily play back video from the memory card - Mike
Click to expand...
Click to collapse
I have overclocked mine to 600+ mhz.
So I just converted my first blu-ray to play on the tablet and it looks a little pixelated. Did I use the wrong settings or is it the program I'm using for conversation?
the outputted .mp4 has the following settings:
Video
Frame Width - 1920
Frame Height - 1072
Data Rate - 2496kbps
total bitrate - 2624kbps
frame rate - 24 fps
Audio
bitrate - 127kbps
channels 2
audio sample - 48hhz
I set the program to export for Android Tablets 1080P. They don't currently have the Samsung 2014 as a listed model yet, I did see the Nexus 10 which has the same resolution but oddly enough it wanted to do 1280 x 720 res.
Why convert?
Geordie Affy said:
Why convert?
Click to expand...
Click to collapse
space limit?...
he/she is not providing enough information about encoding settings... no program name, etc...
2624kbps for 1080p file?...
bump up your bitrate. 2500 is kinda low. 3000 is acceptable imo if you're concerned with space. I only use 2500 for videos for my daughter. 4 to 5K should give you a 3-5GB file depending on movie length and how well it can compress.
madsquabbles said:
bump up your bitrate. 2500 is kinda low. 3000 is acceptable imo if you're concerned with space. I only use 2500 for videos for my daughter. 4 to 5K should give you a 3-5GB file depending on movie length and how well it can compress.
Click to expand...
Click to collapse
To Answer your question I'm using Pavtube Blu-Ray Ripper. Looks like its defaulting the bitrate to 2500 (for the target) I'll try raising it and see how that works. Thanks.
howie411 said:
To Answer your question I'm using Pavtube Blu-Ray Ripper. Looks like its defaulting the bitrate to 2500 (for the target) I'll try raising it and see how that works. Thanks.
Click to expand...
Click to collapse
try handbrake/vidcoder... :victory::victory::victory::victory::victory:
fantasmanegro said:
try handbrake/vidcoder... :victory::victory::victory::victory::victory:
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Click to collapse
Yea what he said ^^^
If your going to use low bitrates then your better off using a resolution of 1280 instead of 1920, generally for good quality archiving any bitrate below 4000 for 1280p is considered low, for 1080p anything below 8000 is considered low, although there are other variables at play which can mean you use less or have to use more.
Obviously I'm not talking about viewing on a tablet when using the above but I thought it would help just to give you a general idea, with tablets having a smaller screen size its going to allow you to get away with a lower bitrate.
Your going to find it easier to get a bitrate close to 4000 when using a resolution of 1280 while maintaining a file size your happy with.
Unless you have a 50" tablet 1080p is overkill :laugh:
I would also recommend handbrake along with a little bit of reading of basic encoding.
Hello guys i want to know why...?
I can download movies that are 720p with great quality like 600mb or less..
Why Android record videos maybe in 720p like 10 seconds and it have 150mb +/-
Mayba 10 seconds be 5mb? O less?
Velcis Ribeiro said:
Hello guys i want to know why...?
I can download movies that are 720p with great quality like 600mb or less..
Why Android record videos maybe in 720p like 10 seconds and it have 150mb +/-
Mayba 10 seconds be 5mb? O less?
Click to expand...
Click to collapse
it has to do with the compression rates of the videos.
Some people think the 720p at 600mb are horrible quality but on the phones they look decent, since the screens are smaller, its hard to tell, but but on the bigger screens, not that great.
It just varies on the codec/compression/fps
Yea but as i said, movies 720p in TV or atleast 1080p not exceeds 1GB, and 1GB is like 5 minutes in phone. There is a way to change it?
A bluray movie in 1080p is in excess of 10GB for the video alone. Just because you can pirate heavily compressed videos around the 1GB mark doesn't mean this is the prime quality.
The phone will try to take the best quality video capture that the memory and CPU can handle. That's why you have such large sizes. You're supposed to export them to PC and then compress into whatever format you require.
I know that devices that can record UHD and up will limit the record length to 5 minutes. The main reason that im reading is because of heat. My sisters S5 did get hot after a few minutea of UHD recording but my note 4 doeant get nearly as hot. In fact i cant tell the difference between full HD and UHD when it comes to heat.
I was reading the other thread that it is not a good idea to remove the limit. Well back then we were talking about Snapdragon 800 and 801. Wouldnt the 805 be able to do the same task with less heat?
I actually do have a Cinema 4K T.V and want to record longer bits of video such as my kids sports and other school activities. What do you guys think... good idea or bad idea?
I assume rooting is required to remove that limit.
Does the S9/S9+ have a time limit on recording video? In particular, FHD Video @ 60FPS?
I know some phones have a 10 minute time limit and I also know that it has a 5 min time limit for 4K but what interests me is FHD @ 60 FPS for vlogging.
Snappy Phoenix said:
Does the S9/S9+ have a time limit on recording video? In particular, FHD Video @ 60FPS?
I know some phones have a 10 minute time limit and I also know that it has a 5 min time limit for 4K but what interests me is FHD @ 60 FPS for vlogging.
Click to expand...
Click to collapse
? The S7 had [email protected] Do you mean [email protected]? If so, there's a 10 minute limit per video.
000Nick said:
? The S7 had [email protected] Do you mean [email protected]? If so, there's a 10 minute limit per video.
Click to expand...
Click to collapse
Yes the S7 and S8 had FHD @ 60 FPS but I think they had a 10 minute limit as well.
Can anyone confirm if there is a time limit on FHD @ 60 FPS on the S9?
I just checked my s9+ and found out that:
4k 60fps has a 5 min limit
4k 30fps has a 10 min limit
Qhd 30 fps has no limit
Fhd 60 fps has a 10 min limit
Fhd 30 fps has no limit
18.5:9 ratio 30fps has no limit
1:1 ratio 30fps no limit as well
And hd 30 fps no limit (of course)...
Running s9+ exynos
How is this still a 'thing'? **** Samsung...
Fhd 30 fps is not unlimited. Only 40 min recordingtime.
Moustache_Man said:
I just checked my s9+ and found out that:
4k 60fps has a 5 min limit
4k 30fps has a 10 min limit
Qhd 30 fps has no limit
Fhd 60 fps has a 10 min limit
Fhd 30 fps has no limit
18.5:9 ratio 30fps has no limit
1:1 ratio 30fps no limit as well
And hd 30 fps no limit (of course)...
Running s9+ exynos
Click to expand...
Click to collapse
FHD 30 frames is not unlimited at all! The limit is 40 min, I just tested it! (Tested on S9 plus)
MauricePianist84 said:
FHD 30 frames is not unlimited at all! The limit is 40 min, I just tested it! (Tested on S9 plus)
Click to expand...
Click to collapse
No limit here, probably just how much space you have remaining that determines how long you can record for
Limit is shown like this 0:00/10:00 for 10 min limit
If no limit it just shows 0:00
Can someone with qualcom/usa version confirm video recording limits, if any, in different resolution/fps?
MauricePianist84 said:
FHD 30 frames is not unlimited at all! The limit is 40 min, I just tested it! (Tested on S9 plus)
Click to expand...
Click to collapse
I have a bunch of $1 phones that can do unlimited FHD 1080/30. Very disappointed in scumsung. At least be honest and advertise it so ppl don't end up returning their POS s9/9+.
*Detection* said:
No limit here, probably just how much space you have remaining that determines how long you can record for
Limit is shown like this 0:00/10:00 for 10 min limit
If no limit it just shows 0:00
Click to expand...
Click to collapse
That is interesting. I bought a brandnew S9 Plus, tried to make a video from one hour, and it cutted it after 40 min on FHD 30 frames. Yes, it sais 00:00, but this isn't right. I would suggest you to also try it and see what happens. I am a concertpianist so its kind of important that there are no cuts. On my last concert the S9 cutted again after 40 min, so I think enough proof here. This is at least the case for the EU version.
PS I had 50 GB or so, because it was brandnew. Tested on day one, so this is not a memoryproblem.
MauricePianist84 said:
That is interesting. I bought a brandnew S9 Plus, tried to make a video from one hour, and it cutted it after 40 min on FHD 30 frames. Yes, it sais 00:00, but this isn't right. I would suggest you to also try it and see what happens. I am a concertpianist so its kind of important that there are no cuts. On my last concert the S9 cutted again after 40 min, so I think enough proof here. This is at least the case for the EU version.
PS I had 50 GB or so, because it was brandnew. Tested on day one, so this is not a memoryproblem.
Click to expand...
Click to collapse
I have no need to record 40 min videos so have never tried to go that long, and tbh I couldn't be bothered doing it for a test either
I think I would be using a proper video camera anyway if I was a concert pianist and needed to film my whole show, not a phone
The time limitation is to avoid additional taxes for being a video camera. I'm not sure what the actual time cut-off is, but standard DSLR Cameras are stuck at 20min or under in order to avoid being classified as such.
Make no mistake, the tech says we could record for hours. The tax code from 30 years ago says otherwise.