Hi guys
My question be possible video playback in 720p with the power of snapdragon? someone working on optimizing its software?
Coreplayer works with 720p? what formats if is the case?
Thanks guys, with this 4,3 screen, video in HD would be impresive
a greetings!
May I ask why you would watch a 720p (1280x720) video on an 800x480 screen?
Just so that we wouldn't need to re-encode everything specifically for the HD2.
I mean, videos i would watch on my HD2 first are on my PC - hence, i always download the highest resolution i find. stuff i transfer to my HD2 need to be re-encoded, possibly transmuxed, which is indeed a hassle. If there was a way to read at least 720p, it would clearly be good.
chribruu said:
May I ask why you would watch a 720p (1280x720) video on an 800x480 screen?
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Same question...
What about the memory ?
remiotte said:
Just so that we wouldn't need to re-encode everything specifically for the HD2.
I mean, videos i would watch on my HD2 first are on my PC - hence, i always download the highest resolution i find. stuff i transfer to my HD2 need to be re-encoded, possibly transmuxed, which is indeed a hassle. If there was a way to read at least 720p, it would clearly be good.
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+1 ... this would be nice.
Metroid Prime said:
Hi guys
My question be possible video playback in 720p with the power of snapdragon? someone working on optimizing its software?
Coreplayer works with 720p? what formats if is the case?
Thanks guys, with this 4,3 screen, video in HD would be impresive
a greetings!
Click to expand...
Click to collapse
Coreplayer fails at his, but it may be due to the H264 codec, as most 720p videos use this codec.
I am not aware of a player capable of decoding H264 to this date, which is a shame.
coreplayer decodes h264 just fine, but can't play a video larger than 1008 (if i remember right) pixels wide.
This has been discussed many times before. 720p playback is not enabled in the hardware and software decoding is not up to the task. And frankly if it did work you be draining your battery decoding details the screen couldn't display.
remiotte said:
Just so that we wouldn't need to re-encode everything specifically for the HD2.
I mean, videos i would watch on my HD2 first are on my PC - hence, i always download the highest resolution i find. stuff i transfer to my HD2 need to be re-encoded, possibly transmuxed, which is indeed a hassle. If there was a way to read at least 720p, it would clearly be good.
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Exactly, many videos and trailers have them in 720, and is very annoying having to recode, I prefer to occupy the space, and if, although it is 480x800 anyway looks awesome
I tested a video 720 in tcpmp, the audio ok, the image very slow, but tcpmp is very old soft, and no optimized
puremind said:
it may be due to the H264 codec, as most 720p videos use this codec.
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Video size has absolutely 0 to do with codecs.
CorePlayer doesn't use any hardware decoding on the HD2, in contrast to the Album/WMP, and I believe Snapdragon is locked away from 1GHz/hardware 720p decoding anyway.
Hell, I can see stutter on H264 800x480 videos no matter how I encode it.
AFAIK snapdragon is capable of running 720p video but windows mobile isn´t.
@Yunabeco: did you try this Encoder? stutters on my xperia, but on the HD2 it works like a charm.. tried only some files, i encoded from 720p with subtitle and it looks great with the built-in-player..
johncmolyneux said:
Video size has absolutely 0 to do with codecs.
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Not in theoretical terms, but that's not what I wrote. I was joint pointing to the fact that most 720p videos use x264 compression due to being recorded from H264 encoded HDTV or downsampled H264 Blurays. As he said, he doesn't want to reencode.
Yunabeco said:
CorePlayer doesn't use any hardware decoding on the HD2, in contrast to the Album/WMP, and I believe Snapdragon is locked away from 1GHz/hardware 720p decoding anyway.
Hell, I can see stutter on H264 800x480 videos no matter how I encode it.
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There is a version of coreplayer that does use hardware acceleration. 1.3.1 build 7141. Don't know why the following ones don't...
benchmarks on my hd2 showed an app. 20% improvement with that version compared to the 1.3.6.
But then again, coreplayer is limited to 1008 pixels wide, so still no 720p anyway.
remiotte said:
There is a version of coreplayer that does use hardware acceleration. 1.3.1 build 7141. Don't know why the following ones don't...
benchmarks on my hd2 showed an app. 20% improvement with that version compared to the 1.3.6.
But then again, coreplayer is limited to 1008 pixels wide, so still no 720p anyway.
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Uh ? I can play 720p vids on my device. I only get performance issues (running at 23% speed at most), using latest core player.
TrYde said:
Uh ? I can play 720p vids on my device. I only get performance issues (running at 23% speed at most), using latest core player.
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There is a 1008 pixel limitation on Coreplayer.....you can't be playing 720p videos on Coreplayer at all.
kenkiller said:
There is a 1008 pixel limitation on Coreplayer.....you can't be playing 720p videos on Coreplayer at all.
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or a 1008x720 720p... welcome back, 4x3 vids...
Hojlind said:
AFAIK snapdragon is capable of running 720p video but windows mobile isn´t.
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Doesn't have anything to do with Windows Mobile. The question is whether the device has the necessary drivers or not.
To answer the thread: No, it is not possible.
And even if it was possible, you would still have to reencode all the videos.
That's because even if a phone is capable of playing 720p, then it only plays certain file formats that it can harware accelerate.
This should answer everything. 720p gives no benefit at all because reencoding is always necessary.
720P play in ACER S200/F1
I can play 1280x720p wmv9 encoded movie in ACER s200/F1 with windows media player. but coreplayer can not. wmv7 and wmv8 encoded movies can not play with windows media player or coreplayer.
speaking of MP4 H.264 play in Gtablet...I suspect the 512MB RAM is not enough juice so 1080 can't play smooth (choppy) in the device.
I convert most of my movies to 720x480 MP4 H.264 and using hardware encoder to (QQPlayer, VPlayer) play and very smooth play but 1080...very very choppy, doesn't matter MOV, MP4, MPEG4, MPEG2..etc
And Yes, if the 1080 movie length is only 10 or 15s (4MB or 8MB), it will looks good (so you see the marketers show the device capable for 1080)...but in the reality, 1080 movie with 7 min (~1.2GB) plays like CRAP LOL...
I wonder how smooth they can be played in Asus Transformer tablet - but I ended my own saga here by staying with 720x480 MP4 H.264 format - good enough for my kids watching 10 movie in the long hour drive!
rcjpth said:
speaking of MP4 H.264 play in Gtablet...I suspect the 512MB RAM is not enough juice so 1080 can't play smooth (choppy) in the device.
I convert most of my movies to 720x480 MP4 H.264 and using hardware encoder to (QQPlayer, VPlayer) play and very smooth play but 1080...very very choppy, doesn't matter MOV, MP4, MPEG4, MPEG2..etc
And Yes, if the 1080 movie length is only 10 or 15s (4MB or 8MB), it will looks good (so you see the marketers show the device capable for 1080)...but in the reality, 1080 movie with 7 min (~1.2GB) plays like CRAP LOL...
I wonder how smooth they can be played in Asus Transformer tablet - but I ended my own saga here by staying with 720x480 MP4 H.264 format - good enough for my kids watching 10 movie in the long hour drive!
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1080p is 2Mbit per frame, and is larger than the actual display, so it has to be scaled down to 1024x600 as it is decoded - at 24 frames per second. The mp4 (or other) decode + scaling without GPU acceleration is the problem, not the availability of a couple GB for frame buffers.
At a minimum, rescaling your video to fit the native resolution would probably fix it. Most people just don't want to bother
Ram has nothing to do with it ( well it does but even 128 would work )
Its like schettj said, the GPU accell or CPU accell / Multithreaded decode thats the problem.....Ie....Software is the problem.
has anyone been able to play full hd 1080p videos on this devices, a could only get an aswome resolution but on 720p
I don't think they can handle 1080P videos, have tried some but the video playing was slow and laggy.
I would like to know what others are doing as far as encoding video to play on the Nook Tablet. The consensus seems to be the H264 encoding for video? What file format, m4v, mkv?? Does it make a difference? What about audio?
I have heard discussion about HW versus SW playback, what does this mean?
What resolution do you keep your videos in? How large should I expect the average full length movie to be?
usually 720 since they're smaller
2.5gb and mp4 or mkv
using mxvideo
sw btw for mkv and hw for mx vid
hd movies will be about 2-2.5gig
normal dvd's will be ~700meg-2gig(avatar) for h.264 format mp4/mkv
swaneon said:
sw btw for mkv and hw for mx vid
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huh? Sorry, still don't get it.
Most videos play fine without converting for me. I just drop it in the tablet and use MX Player.
Also, .mkv is not a video format but a container.
Hi! I'm trying to find a way to play 720p videos smoothly on my Tablet S but I can't find a proper bitrate for it. I tried 4000 but it's still laggy. On some tutorials I found they were saying to use 1500 as bitrate but that is ridiculous. A 720p video with bitrate 1500 will result in a lot of dead pixels. So what can I do?
I'm using Format Factory to convert the MKV videos to MP4 H.264/AVC 720p
Help please :crying:
Sorry bad english
RulezMac said:
Hi! I'm trying to find a way to play 720p videos smoothly on my Tablet S but I can't find a proper bitrate for it. I tried 4000 but it's still laggy. On some tutorials I found they were saying to use 1500 as bitrate but that is ridiculous. A 720p video with bitrate 1500 will result in a lot of dead pixels. So what can I do? I'm using Format Factory to convert the MKV videos to MP4 H.264/AVC 720p Help please :crying: Sorry bad english
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The best video format for the Sony Tablet S is MPEG-4 (mp4) encoded using a H.264 CODEC with a pixel size of 1280 x 720, a bit rate of 1500 kbps, and a frame rate of 29.97 fps. The video's audio should be stereo AAC with a sample rate of 44100 Hz and a bit rate of 96000 bps. I use and recommend Handbrake for converting videos and MX Player Pro for playing videos.
RulezMac said:
Hi! I'm trying to find a way to play 720p videos smoothly on my Tablet S but I can't find a proper bitrate for it. I tried 4000 but it's still laggy. On some tutorials I found they were saying to use 1500 as bitrate but that is ridiculous. A 720p video with bitrate 1500 will result in a lot of dead pixels. So what can I do?
I'm using Format Factory to convert the MKV videos to MP4 H.264/AVC 720p
Help please :crying:
Sorry bad english
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Actually you can just download Dice Player or BS Player Lite. This two video player can play any mkv files I load into it. even upto 1080p :laugh: :good:
1080p are terribly laggy
RulezMac said:
1080p are terribly laggy
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But still you can now play your 720p vids w/o converting them :good:
karl_angel0 said:
But still you can now play your 720p vids w/o converting them :good:
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Ok I tried some 720p MKV files and the sound isn't synchronized with the video. Also I still noticed some lag.
RulezMac said:
Ok I tried some 720p MKV files and the sound isn't synchronized with the video. Also I still noticed some lag.
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Try QQPlayer. I had a lot of problems with video playing slower than audio when using Dice and MX, but QQ seemed to clear them up. Other than that, try using a video converter (such as Handbrake) and use the Apple TV preset. Works for me.
I'm also disappointed by the Tegra 2 performance in video. Here are some thoughts and questions.
From my personal tries, all video players (MX, BSPlayer, Dice) have about the same performance (perhaps BSPlayer with ARMv7 plugin is a little better). Does every video player Tegra 2 video playback implementation are based on the same library?
Is there some way to make some low-level (asm) optimization that would help? I would gladly take a look if there was a way to do it.
I've noticed that even 720P High profile have some lag! Not very serious, but noticeable!! For example, Rise of the Silver Surfer 720P-HP trailer (see h264info.com/clips.html) lags at several points in the video. It may be clearly seen with BSPlayer, when displaying FPS information ('(i)' button during video playback).
1080P Baseline Profile seems to play smoothly (and H/W acceleration is enabled).
Video players disables H/W acceleration for High Profile 1080P so, of course it is terribly laggy. Is it a technical requirement? Isn't there a way to force H/W acceleration for Full HD High profile videos, even if that wouldn't mean full speed?