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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
+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.
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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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Click to collapse
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.
Related
As most tabs don't have these features so i wanted to ask the question for who actually got the flyer ,does the flyer has Fm radio , vibrate feedback and 1080p video playback
As qualcomm lists the qsd8255
Processor with 720p only @30fbs playback
Thanks and regards
Sent from my HTC Incredible S using XDA App
hoss_n2 said:
As most tabs don't have these features so i wanted to ask the question for who actually got the flyer ,does the flyer has Fm radio , vibrate feedback and 1080p video playback
As qualcomm lists the qsd8255
Processor with 720p only @30fbs playback
Thanks and regards
Sent from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
Sadly, there is no FM Radio, however, I cannot coment on the others because I have not checked them out.
FM RADIO: SW NO. HW maybe
I do not see an FM radio application already on the device so I'm not sure if it has the HW or not. I do remember previous devices having the HW but HTC not bundling the application.
1080p Playback: No
I've tried multiple files(all same format which was mp4) with multiple players and I have never been able to get 1080p playback to work smoothly. I've tried HW decoding and SW decoding with no success. I tried the same files on my viliv N5 which has HW decoding and they played back flawlessly.
720p Playback: Sorta, needs more testing.
It plays relatively smoothly but i've only tried 720p mkv files. I would say that frame drops are noticeable but not horrible. I don't have many 720p files that aren't mkvs so I will have to do some more testing.
Haptic feedback: Yes
I get haptic feedback on the capacitive buttons and the OSK. I'm not sure which tablets don't have this because my galaxy tab had it too.
Hope it helps.
Bxsteez said:
FM RADIO: SW NO. HW maybe
I do not see an FM radio application already on the device so I'm not sure if it has the HW or not. I do remember previous devices having the HW but HTC not bundling the application.
1080p Playback: No
I've tried multiple files(all same format which was mp4) with multiple players and I have never been able to get 1080p playback to work smoothly. I've tried HW decoding and SW decoding with no success. I tried the same files on my viliv N5 which has HW decoding and they played back flawlessly.
720p Playback: Sorta, needs more testing.
It plays relatively smoothly but i've only tried 720p mkv files. I would say that frame drops are noticeable but not horrible. I don't have many 720p files that aren't mkvs so I will have to do some more testing.
Haptic feedback: Yes
I get haptic feedback on the capacitive buttons and the OSK. I'm not sure which tablets don't have this because my galaxy tab had it too.
Hope it helps.
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Click to collapse
Thanks allot for your reply both of you but (10.1 tablets don't have haptic feed back ) ,another thing does the 1080p videos you try on flyer works on galaxy tab or same issue.
Sent from my HTC Incredible S using XDA App
hoss_n2 said:
Thanks allot for your reply both of you but (10.1 tablets don't have haptic feed back ) ,another thing does the 1080p videos you try on flyer works on galaxy tab or same issue.
Sent from my HTC Incredible S using XDA App
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Click to collapse
I actually never tried those 1080p files on the Galaxy tab and I don't have it anymore So the haptic feedback isn't in honeycomb or something? Or do the devices just not implement it?
Bxsteez said:
I actually never tried those 1080p files on the Galaxy tab and I don't have it anymore So the haptic feedback isn't in honeycomb or something? Or do the devices just not implement it?
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Click to collapse
No it isn't implemented I think because of its huge size need bigger vibrator
hoss_n2 said:
another thing does the 1080p videos you try on flyer works on galaxy tab or same issue.
Sent from my HTC Incredible S using XDA App
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Just want to chime in regarding video playback since I was able to do some testing on my friend's Flyer the day he got it.
1) 1080p h.264 MP4 file encoded to Blu-Ray spec (high profile Level 4.1, with 4 ref frames), bitrate around 5000kbps - does not play properly on the Flyer, but plays on the Galaxy Tab with no or very little frame drop.
2) 720p h.264 MKV file encoded to high profile Level 4.1 with 4 ref frames ~2000kbps with flac audio and subtitles - plays fine using moboplayer on the flyer (didn't notice any frame dropping) and also plays well on the Galaxy Tab.
I should try out a 720p with 8 ref frames and see what happens as that is the max you can do with high profile 4.1 h264 videos at that resolution. I'm not entirely sure on this, but I think as you have h264 encode video with more ref frames it takes more power to decode.
t3ch7 said:
Just want to chime in regarding video playback since I was able to do some testing on my friend's Flyer the day he got it.
1) 1080p h.264 MP4 file encoded to Blu-Ray spec (high profile Level 4.1, with 4 ref frames), bitrate around 5000kbps - does not play properly on the Flyer, but plays on the Galaxy Tab with no or very little frame drop.
2) 720p h.264 MKV file encoded to high profile Level 4.1 with 4 ref frames ~2000kbps with flac audio and subtitles - plays fine using moboplayer on the flyer (didn't notice any frame dropping) and also plays well on the Galaxy Tab.
I should try out a 720p with 8 ref frames and see what happens as that is the max you can do with high profile 4.1 h264 videos at that resolution. I'm not entirely sure on this, but I think as you have h264 encode video with more ref frames it takes more power to decode.
Click to expand...
Click to collapse
Does that means that video playback on galaxy tab is better or it is only a matter of drivers
Sent from my HTC Incredible S using XDA App
hoss_n2 said:
Does that means that video playback on galaxy tab is better or it is only a matter of drivers
Sent from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
I think the galaxy tab playback is much better, at least out of the box. All of those codecs and such are built in and the player itself is much better!
hoss_n2 said:
Does that means that video playback on galaxy tab is better or it is only a matter of drivers
Sent from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
I believe it is better and not just due to software but hardware. These devices do their best video playback when using hardware acceleration. The 8255 chipset found on the flyer was never deisgned for 1080p playback
solsearch said:
I believe it is better and not just due to software but hardware. These devices do their best video playback when using hardware acceleration. The 8255 chipset found on the flyer was never deisgned for 1080p playback
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Click to collapse
And, the nice thing is that Samsung got their Hummingbird SoC DivX HD certified which means it can play mkv files natively out of the box as long as they are encoded to within blu-ray spec (no higher than level 4.1 for 1080p video).
But, the Flyer is no slouch when it comes to 720p video and it looks great on the 7" display. You can always use Handbrake or DVDCatalyst to reconvert video unless your computer isn't powerful enough to do so.
The dual-core Snapdragon is able to do 1080p playback as vague as that sounds.
I recently aquired the Flyer and I'm really dissapointed with the playback functionality. All of the 720p-res videoclips I've tried are choppy as hell (using Mobo, since the stock player is crap). It doesn't even play some .avi-files! Do I need to tweak something?
Have you tried Real Player? I have more or less tried just about every player in the market and have found RP to be the best.
Better than dice player? I played a 1920x800 7mbps file on my sensation without any skips. It has a problem with mp4 but I think its because its using the default decoding method for that format. The file i played was an avi and an mkv both extremely smooth.
Thank's guys for your tips on video players! I'll try them out.
---------- Post added at 03:51 PM ---------- Previous post was at 03:36 PM ----------
Bxsteez said:
Better than dice player? I played a 1920x800 7mbps file on my sensation without any skips. It has a problem with mp4 but I think its because its using the default decoding method for that format. The file i played was an avi and an mkv both extremely smooth.
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Dice player is awesome! Good tip! Well worth 3$ or so.
I have a bunch of 1080p MKV movies that I want to convert into mobile versions for the Galaxy S II, but does anyone know what codecs I should use in order to take advantage of better battery life?
I play to shrink these down to 800x480 res. Any recommendations on bitrate too?
Also, any software or guides recommended to convert MKV to whatever codec has hardware acceleration for this phone?
All the video formats that the phone can play natively are hardware accelerated. So u can choose from MP4, avi, FLV and so on.....
I don't have much knowledge regarding the subject. But here's what I gathered:
According to Wikipedia:
The Exynos 4210, unlike Tegra 2, features support for ARM's SIMD engine (Media Processing Engine, a.k.a NEON instructions) and this may have a significant performance advantage in some cases over Tegra 2 in critical performance situations such as accelerated decoding for multiple multimedia codecs and formats (e.g., On2's VP6/7/8 or Real formats).
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Now, to take advantage of that hardware there also needs to be software that supports it.
MoboPlayer is one such software, that I know of, which has "ARM V7_NEON" playback codec and so it will fully utilize Galaxy S2 resources.
As to regards to which format you should convert...
On the MoboPlayer website is said that: "Almost all video formats(need to choose "software decoding" mode inmost cases)."
So I suppose what you need to do, is to disable "software decoding" mode and see what video formats will be supported in hardware mode.
stra said:
I don't have much knowledge regarding the subject. But here's what I gathered:
According to Wikipedia:
Now, to take advantage of that hardware there also needs to be software that supports it.
MoboPlayer is one such software, that I know of, which has "ARM V7_NEON" playback codec and so it will fully utilize Galaxy S2 resources.
As to regards to which format you should convert...
On the MoboPlayer website is said that: "Almost all video formats(need to choose "software decoding" mode inmost cases)."
So I suppose what you need to do, is to disable "software decoding" mode and see what video formats will be supported in hardware mode.
Click to expand...
Click to collapse
I live in the US and we don't have the SGS2 released here yet. Can anyone who has the phone already, please test this out and let us know which codecs are hardware accelerated with MoboPlayer?
I found this guide for transcoding:
http://forum.videohelp.com/threads/211070-How-to-convert-MKV-to-AVI-or-OGM-to-AVI-using-mencoder
I don't think there is an "optimum" bitrate because that is going to vary depending on content, ie, number of fast motion scenes. Maybe encode it in VBR and set the top limit fairly high.
I know this phone will handle 1080p MKV, but some of my mkv files are like 12gb!
Hi, dont bother with anything else, handbrake should be your tool of choice. There are various templates included but I usually just set it to MP4 high profile and choose the file size I want, handbrake then does the rest and bloody well too.
Do a search on here for handbrake, there may already be threads about it, note though you should only really have to re-encode if you movies are over 4 gig (fat 32 limit) as I haven't found a file this phone wont play yet with one player or another. My players of choice are always stock first, then mobo, then DICE.
stoolzo said:
Hi, dont bother with anything else, handbrake should be your tool of choice. There are various templates included but I usually just set it to MP4 high profile and choose the file size I want, handbrake then does the rest and bloody well too.
Do a search on here for handbrake, there may already be threads about it, note though you should only really have to re-encode if you movies are over 4 gig (fat 32 limit) as I haven't found a file this phone wont play yet with one player or another. My players of choice are always stock first, then mobo, then DICE.
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Click to collapse
Thanks mate! Actually, I'm getting this phone for my GF for our anniversary and she's a big Harry Potter geek, she has all the books and blu-ray. I've already converted her blu-rays to MKV so she can have them all on the XPS 15, but I was hoping to convert the MKV down to a mobile friendly format.
All the HP movies add up to 80gb so I can't just copy the MKV's on there, that's why I was thinking of transcoding again.
I did find this bit of info on the Exynos:
http://www.samsung.com/us/business/oem-solutions/pdfs/Exynos_v11.pdf
1080p Video Encode/Decode
- H.264 30fps
- MPEG-4 30fps
- VC-1 30fps
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It doesn't say what container it supports but from what you say, it sounds like MP4 is the way to go. Thanks for the Handbrake tip!
one thing you should aware of is that if you intend to get the MHL>HDMI adapter at some point you may want to transcode at a resolution a little higher as it wont look great on the TV. If you are just playing on the phone then you can get them down to a fraction of the size. I found the best thing to do was to find a smaller film clip that was encoded as 1080 MKV and run off some tests, then save off the template and batch convert the log. I converted all my start trek films from 8 gig to 2 gig a piece, I left them at 1080p but set the file size down to 2 gig. The all look great on my Phone and still really good on my TV through the HDMI, best of both worlds.
stoolzo said:
one thing you should aware of is that if you intend to get the MHL>HDMI adapter at some point you may want to transcode at a resolution a little higher as it wont look great on the TV. If you are just playing on the phone then you can get them down to a fraction of the size. I found the best thing to do was to find a smaller film clip that was encoded as 1080 MKV and run off some tests, then save off the template and batch convert the log. I converted all my start trek films from 8 gig to 2 gig a piece, I left them at 1080p but set the file size down to 2 gig. The all look great on my Phone and still really good on my TV through the HDMI, best of both worlds.
Click to expand...
Click to collapse
Wow, that's crazy! I doubt my gf will ever output these to a TV. I'm still playing with Handbrake's settings.
One thing I don't get about it is that HP is 1920x800'ish, so when I set it to 800, the height drops down to 336'ish.
I think I'd rather have it fullscreen and sacrifice cropping some of the sides, so I clicked ASPECT RATIO and set the height to 480.
Handbrake set the width to 1152, so I set a crop of 176 on left and right, to try to bring the final size back down to 800x480.
But Handbrake has some weird algorithm that doesn't seem to give the desired result? It changed the output size of the video on its own after I changed the cropping values.
So, I'm not quite sure how cropping is handling in Handbrake, is it done before or after the resolution is resized?
Mobo can't use HW video decoder. SW decoder use SIMD(NEON) instructions.
Exynos HW video decoder can decode 1080p.
Try diceplayer. it use HW video decoder in Exynos ( Multi Function Codec )
juami said:
Mobo can't use HW video decoder. SW decoder use SIMD(NEON) instructions.
Exynos HW video decoder can decode 1080p.
Try diceplayer. it use HW video decoder in Exynos ( Multi Function Codec )
Click to expand...
Click to collapse
Thanks but does it also depend on which container or codec the video is in?
I'm assuming that h.264 video in a MP4 container should be hardware accelerated right?
H264 in any container up to High Profile level 5.0
Trial at https://market.android.com/details?id=com.inisoft.mediaplayer.trial&feature=search_result
Try it out!
Edit: Diceplayer and ES filemanager is a nice combo, plays mkv via wifi very nicely
Limitations
1. S5PC11x Chipset can play 720p(h.264 high profile)
2. Tegra 2 based phone can not play H.264 high profile clip.
3. Froyo Galaxy S/Tab can not play movie. Gingerbread is required.
4. 2nd gen. Snapdragon can not play H.264 High profile level 4.0/5.0 clip.
Click to expand...
Click to collapse
Are we sure it will work? Testing now.
bullzeye.za said:
Are we sure it will work? Testing now.
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Click to collapse
Impressed! Works perfectly
Thanks for the link, buying it!
Does it play x264 high profile encoded 720p and 1080p mkv files?
Works perfect so far! Even plays across smb!
Sent from my GT-P7510 using XDA Premium App
Can someone check the playback of the following video clips, using Diceplayer? These clips are taken from this thread here. This is what the OP of that thread says:
This is a survey to see how well current tablets can play 720p and 1080p H.264 movies. Attached below are 6 sample clips from Avatar, each is of the same scene, encoded in H.264 high/main/baseline profile and 720p/1080p resolution. Please try all clips.
I've selected Avatar since it is full-frame and requires more bits than a normal wide-screen movie. This particular sequence is very high action, and serves as a worst-case test. (For playback, please minimize system load by closing down other running apps.)
http://mediafire.com/?15ec78k8s57db1z 1280 high MP4
http://mediafire.com/?pylvj2fa9kzynh2 1280 main MP4
http://mediafire.com/?9uk4z06ig651x3u 1280 baseline MP4
http://mediafire.com/?ge1nwgd5003s3ak 1920 high MP4
http://mediafire.com/?8aarftw6r499dga 1920 main MP4
http://mediafire.com/?7yqwhma8yhrhusq 1920 baseline MP4
The above video 1280 high profile play just fine with stock player. Android 3.1 handle highprofile mp4 with the right spec.
The 1920 highprofile freeze my tab and only gets audio. And when do people want to play 1080p? Better to use 720p with good quality and bitrate.
The thing that's stand out with diceplayer is that you can play .mkv.
It Evan plays videos with dts.
If you want use to test and see different between diceplayer and stock you should upload videos that don't run on stock player
Have tried some highprofile mkv and its almost ok, for the most time it runs smoothly, but sometimes the picture hangs,studder.
It's almost there but it don't reach all the way, hopes that we will see updates so the playback gets better.
Also think that mp4 baseline and other video plays smoother in movie's when there is alot of movement and panning.
Sent from my GT-P7510 using XDA Premium App
Doesn't play on my 3.1 Tab
Diceplayer doesn't work on my Tab - running HC3.1. Anyone else have problems?
arnold88 said:
Diceplayer doesn't work on my Tab - running HC3.1. Anyone else have problems?
Click to expand...
Click to collapse
Same for me
arnold88 said:
Diceplayer doesn't work on my Tab - running HC3.1. Anyone else have problems?
Click to expand...
Click to collapse
Same here, it opens, sits for a second, then closes.
Works pretty well with these ([email protected] AC3) TV shows that I download. Not bad since Mobo couldn't play these smoothly. Video has some hiccups but audio is smooth.
Downloaded a sample video ([email protected] DTS) and there was no video. Then the file stopped playing half way through (27 seconds in).
But I don't watch movies on my tablet anyway, only TV shows. And this seems to work great. Let's see if it'll be able to stream the TV shows smoothly. Thanks OP!
This plays my 720p x264 mkvs perfectly. Fantastic find, Doc, thanks.
Sent from my GT-P7510 using XDA Premium App
Ahh finally, since neither stock nor mobo could play my .mkv's (tv series) this is godsend.
I'm running HC 3.1 & TW.
Got Diceplayer playing back a 720p .MKV file (not sure if it was high profile or not) - not buttery smooth but better than anything else I've seen so far on HC3.1
Got a couple of questions, I was wondering if anyone can answer...
1) Diceplayer claims to offer hardware accelerated video decoding - is this for .MKVs?
2) Is that hardware acceleratation for Tegra 2
3) IF so, how are they managing it where so many others have failed? (Wasn't the core problem with offering HW acceleration for .MKVs down to lack of support from the nVidia side of things?)
Cheers
1) Diceplayer claims to offer hardware accelerated video decoding - is this for .MKVs?
=> Yes. it use hw accelerator at any format with MPEG-4/H.264
you can play MOV / AVI files with HW accel.
2) Is that hardware acceleratation for Tegra 2
=> YES.
It plays 720p high profile mkv without any issues. With 1080p, The video stops playing, but the audio still works for some, but wont for most of the 1080p videos either mkv or mp4. I think this might be achieved in the future.
720p playback is great !
1080p just freeze the tab but hey not even my Galaxy S II cant handle Full HD besides the resolution is useless for now anyway
krips2003 said:
It plays 720p high profile mkv without any issues. With 1080p, The video stops playing, but the audio still works for some, but wont for most of the 1080p videos either mkv or mp4. I think this might be achieved in the future.
Click to expand...
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I don't think it (Galaxy Tab/Tegra2) can handle level 4.1 or higher. But plays the rest better than anything else I've tried.
juami said:
1) Diceplayer claims to offer hardware accelerated video decoding - is this for .MKVs?
=> Yes. it use hw accelerator at any format with MPEG-4/H.264
you can play MOV / AVI files with HW accel.
2) Is that hardware acceleratation for Tegra 2
=> YES.
Click to expand...
Click to collapse
Awesome.. which leads me to question 3.. *How* are they managing to implement HW acceleration where the other software vendors have failed? e.g. the reliance on core NVidia software library support (or lack of it apparently) ??
jms_uk said:
Awesome.. which leads me to question 3.. *How* are they managing to implement HW acceleration where the other software vendors have failed? e.g. the reliance on core NVidia software library support (or lack of it apparently) ??
Click to expand...
Click to collapse
see my interview.
http://blog.clove.co.uk/2011/07/20/focus-on-apps-dice-player/
Hi, I know there has been some discussion about this already but I dont think this has been properly resolved.
I am fully aware of the tegra 2 video decoding limitations so lets not get into a discussion about that.
Basically, on the website Samsung suggest this can play 1080p video and there are various videos floating about suggesting it can plan youtube videos in 1080p format.
Now, here's the rub....
If you play a video in none desktop mode it plays great but this isnt in 1080p format, this is pretty obvious if you pump it out the HDMI. If you attempt to play it straight out of the browser, stock or Dolphin it stutters in 1080p and is just about watch-able in 720p.
So, I am wondering exactly what 1080p video sammy are actually referencing to?
On a side note however I have found that DICE and MXplayer do a really good job or playing main and high profile MKV's to the point where 720p high profiles are watchable at stock cpu 1 gig and smooth at 1.6 gig overclock (neither is hardware decoding, all done by CPU).
wow 60 views and no replies... ghost town in here...
Samsung simply repeats what Nvidia states which is the tegra 2 can only play 1080p video encoded in Baseline profile. The problem is nobody uses Baseline profile as its obsolete and has poor compression.
Youtube certainly does not use Baseline profile when it re-codes videos uploaded to its servers and that is problem....
Yes the video decoder in the tegra 2 sucks balls.
I dont think that is right, flash 3.2 is supposed to have tegra 2 hardware acceleration and should be able to play 1080p youtube stuff through a browser.
http://www.samsung.com/global/microsite/galaxytab/10.1/spec.html
See here, it still states full 1080p video playback, if it cannot play youtube 1080p then you have to wonder what it is refferring to exactly?
da.trute said:
I dont think that is right, flash 3.2 is supposed to have tegra 2 hardware acceleration and should be able to play 1080p youtube stuff through a browser.
http://www.samsung.com/global/microsite/galaxytab/10.1/spec.html
See here, it still states full 1080p video playback, if it cannot play youtube 1080p then you have to wonder what it is refferring to exactly?
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Just because it has hardware acceleration of a codec does not mean it can play all 1080p video as explained with h.264. If the video is encoded with too high of a bitrate the tegra 2 hardware accelerator chokes, and it does not take much to choke it....
Unfortunately advertisement is inherently deceptive as the case with the link you provided.
Does anyone have any more info regarding this? I really thought that with the 3.2 Honeycomb update they would optimize the Tegra 2 GPU more, but it still cant play any stream or youtube video at 1080p.
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?