Database Users

Playing 1080p H.264

As a proud owner of both a HD2 and a GoPro Hero HD helmet cam, I was wondering whether there's a WM video player that can handle 1080p H.264 encoded mp4 files.
I'm not asking for fluid playback, obviously, just a stuttering preview of picture quality while I'm away from a real computer.
Coreplayer has a 1008p limit hardcoded into it, from what I understand, so that's not an option. TCPMP didn't work either when I tried.
Any thoughts?

Forget it straight away. Even a 1.2GHz core 2 duo (which is already easily 10 times more powerful, if any comparison is possible) can't even play 1080p h264 at half speed...
The HD2 can barely play DVD res MPEG2.

1080 on HD2? useless... nonsense
as kilrah said... forget it
but one point is not true u can run 1080p X264 movies smooth on a pc with 1.2Ghz Dual Core.. now comes the point! IF... u have a graficcard that supports VDPAU. so even a loosy GeForce 9400 can do that.
XBMC installing as OS. turn VPDAU on.. e voila. smooth HD movies.
on my mom's AsRock ION330 (Atom CPU) with ION GPU (Equal to GeForce 9400M). 1080p movie with x264 in MKV container run's smooth.
and CPU usage is at 12-40% depends on.
have fun

Have you try the "Remote Desktop Mobile" feature....? Which is not "directly" playing on HD2...

I'm not sure if you fully read my original question:
I don't want smooth playback, I know I can't have that,
but simply a way to view stills out of a large h.264 file.
I don't care if rendering one frame takes several seconds.
Have you try the "Remote Desktop Mobile" feature....? Which is not "directly" playing on HD2...
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Since the video files are on my phone, I don't see how Remote
Desktop Mobile is going to help me. Or did I misunderstand
what you are saying?

Yes we did fully read... But do you really think a developer would spend time making a WM program to open and decode a format that no existing device could play?
It's actually something the WM port of vlc could do, if it hadn't been discontinued in 2006 before it could play h264... It had the same capabilities as on other platforms.
@jisin: Of course if you cheat with hardware acceleration But my example was meant to put things on the same level, as the HD2 has none.

Nobody is talking about a seperate program - at least I wasn't. I would think
any player capable of decoding h.264 should handle 1080p, at least in theory.
For example, I don't understand why CorePlayer has a limit at such an arbitrary
number built into it, otherwise it would probably work just fine for my purposes.
TCPMP is witchcraft, as far as I'm concerned, so I don't readily know why it
won't play HD videos.

AFAIK the profiles used to encode HD h.264 are different from the simple ones used for SD videos, and thus need explicit support. The difference between AVC and AVCHD.
For example in VLC, support for HD h.264 has only come last year, long after SD one. Before that, trying to read one would just give you a couple of crippled frames and crash the player.

Just to clarify, AVC and H.264 are the same, or rather AVC is part of H.264.
AVCHD is an extension of H.264/AVC. That's what you meant, right?
In any case, my videos are AVC and not AVCHD encoded.
I really don't see how decoding a higher definition variant of a video codec can
be any different from standard definition, other than the stress on the hardware
of course.

If not coreplayer, then I think nothing.

bayowar said:
As a proud owner of both a HD2 and a GoPro Hero HD helmet cam, I was wondering whether there's a WM video player that can handle 1080p H.264 encoded mp4 files.
I'm not asking for fluid playback, obviously, just a stuttering preview of picture quality while I'm away from a real computer.
Coreplayer has a 1008p limit hardcoded into it, from what I understand, so that's not an option. TCPMP didn't work either when I tried.
Any thoughts?
Click to expand...
Click to collapse
Coreplayer's limit is 1008 horizontal pixels, I think, so it can't even play 720p, let alone anything higher.
I have a 720p video clip on my phone which will play in HTCAlbum or Pocket Media Player. It's jerky as hell and completely unwatchable, but it does play. You might find a 1080p clip would play in it too, I don't know. But it wouldn't give you any kind of meaningful preview.

I dont understand why you would want to try and view the image quality of a 1080p file on a 800 x 480 screen? It's never going to look any better than a similarly encoded 480p file. I would agree that it's handier to not have to re-encode files, but most 1080p files are downloaded as mkv anyway, which means that you would need to reencode into MP4. You may aswell reduce the resolution to 800 x 480 and save loads of memory while your at it.

Ad-james said:
which means that you would need to reencode into MP4. You may aswell reduce the resolution to 800 x 480 and save loads of memory while your at it.
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You didn't get the point. He has a camcorder that doesn't have a screen. He wants to put its memory card in the HD2 and have a glimpse of what he just shot could have been like.
But yes, it would only allow checking framing if it took several seconds to load each frame, not much more...

WMP plays the sound, not the video, HTC Album came up with an error I think.
And yes, kilrah, that's exactly it. Should have mentioned that the camcorder
doesn't have a screen.

Shasarak said:
Coreplayer's limit is 1008 horizontal pixels, I think, so it can't even play 720p, let alone anything higher.
I have a 720p video clip on my phone which will play in HTCAlbum or Pocket Media Player. It's jerky as hell and completely unwatchable, but it does play. You might find a 1080p clip would play in it too, I don't know. But it wouldn't give you any kind of meaningful preview.
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i think the main problem is the lake of drivers in windows mobile 6 series as hd2 processor is mentiond to support 720p videos at 30 frame /sec

kilrah said:
Forget it straight away. Even a 1.2GHz core 2 duo (which is already easily 10 times more powerful, if any comparison is possible) can't even play 1080p h264 at half speed...
The HD2 can barely play DVD res MPEG2.
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i think it depends on the codec and bitrate... i can run 1080p h.264 fine on my 1ghz athlon using coreavc

Is there any codec which make possible to view h.264 stream in windows media player?
I can get stream from my internet aceess box which are very smooth with CorePlayer but I would like to know if there is any codec which make it possible with the native multimedia player!
Thanks

i downloade ttansformers hd (1080p) from youtube and coreplayer played that completely O.K. but i couldn't got it to play almost most .mp4 ones. it plays some .mp4 but doesn't many. also plays raw 640x480 videos from my digital camera not smooth but acceptable.

Camcorder that doesnt have a screen???
720p dont play in hd2 forget about 1080, it cant handle the resolution or the bitrates.

I don't know why Microsoft/HTC didnt done things right.
I have HD2 dual boot with Android.
where WM unable to play 720P but Android on same HD2 play 1080 smooth and crisp with out any frame delay/skip.
I think Microsoft has to optimize there graphics driver to come at par with Android.
Thanks
Pawan

XOOM vs Ipad 2 Video playback

Ipad 2:
Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
XOOM:
If you stick with H.264 Baseline Profile, you can achieve up to 1920x1080p at 30 fps at 20Mbps.
Baseline Profile means:
- No CABAC entropy coding.
- No B frames
- No 8x8 transforms (DCT)
- No Weighted Prediction
For 1280x720p at 30 fps, you can go up to 20Mbps and Motorola XOOM should still be able to handle it. More Realistically, depending on the content, you can get away with 4Mbps and up with varying degrees of quality. If you are tight on space, use 4Mbps. If you want something to look good you can use 10/12 Mbps. At some point though the higher the bitrate will only translate to decreasing amounts of quality improvement. In other words, 20Mbps will probably look as good as 15Mbps, but will just use up more space. Ultimately, there is really no one size fits all solution and it may take a little experimentation to find the settings that work best for the content you wish to view.
Additionally your device does not have a limitation on certain types of B frames (Main profile tool). So you can add in B frames and not affect performance that much. If you are using a encoding tool that uses B frames, such as QuickTime Pro, you should be able to achieve main profile encoding.
If you are using a lower resolution that 720p (such as 720x480 resolution size) in order to encode longer length video , you can get away with using more tools (High and Main profile tools). However, encoding become more complex and may require more experimentation to achieve acceptable results.
In general, if you are concern about performance, use baseline tools and possibly b-frames (with no weighted prediction). This will give you the best performance.
Also as side note, if you are upscaling from a DVD to 720p try to use the best upscaling algorithm provided and don't expect to get true 720p quality from upscaled DVD.
Looks like Xoom is a tad bit better in terms of supported Hardware video decode capabilities.
In terms of GPU - it seems that the Ipad 2 may have a bit of an edge with the new power VR 543 - though this is not official as there are no direct comparisons yet.

Well my Epic4g with the Powervr SGX540 plays back high profile 720p FLAWLESSLY. The iPad will be capable of much more than that with the newer chip. The video standards that they "support" are the ones that they use through itunes and in no way represent the highest possible encoding of video that will play back. The instant XBMC hits the iPad2, I expect at least 1080p main profile to work since 1080p high profile ALMOST works on the iPad1.

muyoso said:
Well my Epic4g with the Powervr SGX540 plays back high profile 720p FLAWLESSLY. The iPad will be capable of much more than that with the newer chip. The video standards that they "support" are the ones that they use through itunes and in no way represent the highest possible encoding of video that will play back. The instant XBMC hits the iPad2, I expect at least 1080p main profile to work since 1080p high profile ALMOST works on the iPad1.
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What's that you say, the iPad can output 1080p? Well sort of. The iPad can mirror its 1024x768 display in 1080p but it still won't decode 1080p H.264 videos, and we don't know what type of TV you have, but we'd bet ours does a little bit better job of scaling than the magical iPad. All that being said, the iPad 2's new form factor will increase its desirability as a couch companion --not to mention we'll buy anything with magnets -- but an HD source device, not so much.
That's from engadget
http://hd.engadget.com/2011/03/02/the-ipad-2-and-1080p-theres-nothing-to-see-here/

There are a lot of threads about xoom video limitations.
Am I the only person who just copied dvd rips from my iTunes folder straight to the xoom, and watch them with zero issues?
Maybe my handbrake settings arent top-notch, but the quality/size trade off worked fine on my old I pad, and work fine for the xoom. If I wanted full crazy HD, i'd watch from the blu-ray disk directly, on a TV that does it justice.
Am I crazy?
Sent from my Xoom using XDA App

It won't do it officially. Once it its jailbroken though it will have xbmc and will have ridiculous capabilities. For example the current ipad can play 720p high profile with xbmc now.
Sent from my SPH-D700 using XDA App

Bauxite said:
Because the specs page for the iPad 2 lists SO many more formats.... stop trolling.
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What the specs page lists for the iPad 2 is irrelevant. Here my iPad1 playing a 720p [email protected] h.264 mkv file:
http://vimeo.com/20636064
Pretty sure the iPad never had that listed on its specs page. For a comparison, here is the Notion Ink and the Xoom playing back that exact same clip:
http://www.youtube.com/watch?v=lXWu6m33EP0&feature=player_detailpage#t=231s

muyoso said:
What the specs page lists for the iPad 2 is irrelevant. Here my iPad1 playing a 720p [email protected] h.264 mkv file:
http://vimeo.com/20636064
Pretty sure the iPad never had that listed on its specs page.
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How long did it take from the MOMENT the iPad was released to when that became supported by some app?
People act like just because there are no apps RIGHT NOW for the xoom to play additional formats that there never ever will be.

Bauxite said:
How long did it take from the MOMENT the iPad was released to when that became supported by some app?
People act like just because there are no apps RIGHT NOW for the xoom to play additional formats that there never ever will be.
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It took a while for XBMC to be ported, 9 months or so. Dont know if they were working on it that entire time. The reason people act like that BTW is because the Tegra 2 is incapable of hardware decoding [email protected] or higher. Here is the guy who ported XBMC to the iPad and AppleTV and who was tasked with porting to Tegra 2 devices talking about it:
http://forum.xbmc.org/showpost.php?p=735285&postcount=41
Believe me, I wish that were not the case. Wants me some Xoom or Galaxy Tab 10.1 action.

Correct me if I'm wrong but the only thing difference I seem to see from baseline and high profile h.264 is compression. My Xoom is fully capable of displaying the converted 720p mkvs with no chop/stutter in widescreen format on its screen. I've yet to test out hdmi out to my TV though.
Unless you want to talk about bitrate, but I can hardly tell the difference in quality loss vs source on something that I downloaded off the internet.

iceytea said:
Correct me if I'm wrong but the only thing difference I seem to see from baseline and high profile h.264 is compression. My Xoom is fully capable of displaying the converted 720p mkvs with no chop/stutter in widescreen format on its screen. I've yet to test out hdmi out to my TV though.
Unless you want to talk about bitrate, but I can hardly tell the difference in quality loss vs source on something that I downloaded off the internet.
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Oh there is no doubt that you can convert the video to play back perfectly on the Xoom. That isn't in question. I personally just think its ridiculous to have to.
Good read on the differences here, especially on page 3:
http://www.polycom.com/global/documents/whitepapers/h264_high_profile_wp.pdf
Warning, above is a direct link to a pdf.

Thanks for the read, I skimmed it and it pretty much sums up as higher compression without visual quality loss. I never put it together that the development of high profile was used for bandwidth savings though, interesting.

muyoso said:
Oh there is no doubt that you can convert the video to play back perfectly on the Xoom. That isn't in question. I personally just think its ridiculous to have to.
Good read on the differences here, especially on page 3:
http://www.polycom.com/global/documents/whitepapers/h264_high_profile_wp.pdf
Warning, above is a direct link to a pdf.
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Thank you for your posts, and yes, I COMPLETELY AGREE with you! Once I began my due diligence today comparing the iPad 1, iPad 2, and the Xoom I thought to see if high profile h.264 was supported.
I was shocked to find out that the Tegra 2's hw (and Nvidia has confirmed this) does not support high profile h.264. BUT.... the iPad 1 does?! It's ridiculous quite frankly, and in my eyes, Tegra 2 is partial failure because of it.
Anyway, iPad 1 handles that Planet Earth clip (i.e. the de facto pseudo h.264 720p/1080p benchmark for years it seems!) beautifully. How's the batter life when watching h.264? How long can you get? Also, I would think the iPad 2 is capable of 1080p high profile yes?
In any event, I won't be buying a zoom. For the steeper price point, that is just insulting. I'm gonna try to find one of the remnant ipad 1s from Verizon that have been creeping around for ~$300, however unlikely at that price point it may be to find!
Kudos to your efforts and exposing this massive fault in the Xoom. I have NEVER been a fan of reconversion of the years, from divx in its earliest days through xvid (when apple ironically pushed 'reconversion' into mainstream)... glad that w/ this bad boy that won't be necessary as I'd never do it, too much hassle and insulting, imho.

Not being able to play 720p videos is the main reason I returned the xoom. If I am forced to convert videos I might as well do it for the ipad.

I am so tempted to sell my xoom because of this video playback issue...
I have a lot of bluray rips and I cant watch them on the xoom.
They were encoded using the Apple TV2 preset in handbrake, which I'm guessing is high profile

Oh wow, if this is that serious most of the Honeycomb tablets will be losing quite a lot of sells. I hope Samsung doesn't use the Tegra in their tabs. I'm fine with their Exynos, assuming it has the amazing codec support their Hummingbird does.

Its not the chip ( http://www.nvidia.com/object/tegra-2.html ) supports 1080p h264 just fine. As it stands right now, best I have been able to gather, it is a software/firmware (likely drivers) issue causing the poor playback.

pjcforpres said:
Its not the chip ( http://www.nvidia.com/object/tegra-2.html ) supports 1080p h264 just fine. As it stands right now, best I have been able to gather, it is a software/firmware (likely drivers) issue causing the poor playback.
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That would seem to make since, but I believe in Google...A phrase I never thought I would be saying ever lol.

Sorry. But there isn't much doubt at this time that it IS in fact the "chip"
There are dozens upon dozens upon dozens of articles at this point citing the same thing: Tegra 2 CANNOT DECODE HIGH PROFILE VIDEO.
Period.
If you need me to cite about 50 different sources, I would be happy to do so.

Digital Man said:
Sorry. But there isn't much doubt at this time that it IS in fact the "chip"
There are dozens upon dozens upon dozens of articles at this point citing the same thing: Tegra 2 CANNOT DECODE HIGH PROFILE VIDEO.
Period.
If you need me to cite about 50 different sources, I would be happy to do so.
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No, no, I'll take your word for it. I guess some of us were hoping that it was just a honeycomb issue that would be fixed with an update.

pjcforpres said:
Its not the chip ( http://www.nvidia.com/object/tegra-2.html ) supports 1080p h264 just fine. As it stands right now, best I have been able to gather, it is a software/firmware (likely drivers) issue causing the poor playback.
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The Xoom can play baseline 1080p h.264. The Xoom cannot play 720p high profile h.264. I would venture to guess that 90% of all video that people have that they didn't videotape themselves is high profile h.264 with 9.99% of the remainder being main profile h.264.
hakujin said:
Anyway, iPad 1 handles that Planet Earth clip (i.e. the de facto pseudo h.264 720p/1080p benchmark for years it seems!) beautifully. How's the batter life when watching h.264? How long can you get? Also, I would think the iPad 2 is capable of 1080p high profile yes?
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The iPad 1 handles the Planet Earth clip perfectly, but do realize that it is a jailbroken iPad with XBMC installed. The iPad does not natively support high profile h.264 even though the hardware is capable, because Apple wants you to buy media through iTunes.
The iPad 2 SHOULD be capable of 1080p high profile, but we won't know for sure until it too is jailbroken and XBMC is installed/optimized.

For Those That Doubted The Xooms Full HD Playback

Like the thread title says ive seen way too many posts bashing the playback quality so to those people watch this video on your xooms browser and you will be impressed and appreciate it more
http://m.youtube.com/#/watch?deskto...e.com/watch?v=iFohN2-Hqhg&v=iFohN2-Hqhg&gl=US

I think most people are talking about videos that they load onto the device sometimes has choppy playback. We know YouTube plays great. I haven't loaded much onto my device yet but you do experience some slowdown or choppyness I some videos. Most play without a hitch for me though
Sent from my Xoom

I have several blu ray rips on mine and I haven't experienced any issues so far I converted using handbrake

I think the issue is the software people use to rip.

Granted I don't have my Xoom yet but I've read a lot of threads in preparation and I think the problem is the profile used to rip rather than the software. Apparently high profile 720p isn't working on the Xoom.
Hopefully it's a codec thing and fixable by either Moto adding the codecs or some third party app like CorePlayer.
Sent from my Desire HD using XDA App

PaulG1488 said:
I have several blu ray rips on mine and I haven't experienced any issues so far I converted using handbrake
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I dont have my Xoom yet, but just so i know for when i get it, what profile/settings do you use for the converted rip?

kcm117 said:
I dont have my Xoom yet, but just so i know for when i get it, what profile/settings do you use for the converted rip?
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There is a Xoom profile out there that works perfectly. See middle of this page http://www.xoomfaq.com/video/
1080p is a size not a measure of quality. I had a standard def camera that will shoot a better picture than my handheld HD cam and will shoot better than any phone or tablet camera. I do not know many that can tell the difference between high quality 720 vs 1080. Probably the same folks that can tell the difference between a 160kbps MP3 file vs a 300kbps one
Real HD, that plays off your BluRay player, is 48 Mbit/s. No tablet made today can play that level of quality.

Just because nobody mentioned it..
The problem was/is that users feel that most downloadable HD content files should not have to be re-encoded to play on an $600-$800 device. It is not that we can't use handbrake, or can't figure out how to download the preset which has already been posted on XDA. It is time consuming.
I got over it though, because watching 720P Tv shows on the train with the Xoom is awesome.

I loaded a Kenny vs. Spenny episode onto a store display via my Evo's bluetooth and it played fine. If the videos I converted for my Evo work on my Xoom, then that's fine with me, and it looks like they will. I cant tell the difference between 720 and 1080 on a 10 inch screen unless I stare so hard I get a head ache anyway.

DebianDog said:
There is a Xoom profile out there that works perfectly. See middle of this page http://www.xoomfaq.com/video/
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The link provided takes you to a page with XML code...how do you import this to Handbrake? Did you create a notepad file, copy/paste the text, and rename it with a .plist or .xml extension? I couldn't find any info on this in the Handbrake wiki.

As others have stated, its a tegra 2 issue. Tegra 2 is incapable of playing high profile h.264 video @ L4.1 or higher. Its a limitation of the video decode processor. As it stands right now, no tegra2 device has been seen playing ANY high profile video at all smoothly. Tegra 2 can play some main profile h.264 as long as its encoded exactly how the tegra2 likes it, ie no b frames etc.
The reason people like myself take issue with this is that the original ipad can play 720p high profile h.264 and my epic4g can play 720p high profile h.264. Neither of these devices were sold as being particularly capable of playing hd content. The xoom on the other hand was specifically sold as being able to play hd content, and the tegra.2 was advertised at being particlarly good at doing so. Then when both the xoom and tegra 2 are released we come to realize that it was a bs marketing ploy and "technically" it can display videos that are 720p and 1080p, but only if they are formatted in a ridiculously specific encode.
Sent from my SPH-D700 using XDA App

muyoso said:
As others have stated, its a tegra 2 issue. Tegra 2 is incapable of playing high profile h.264 video @ L4.1 or higher. Its a limitation of the video decode processor. As it stands right now, no tegra2 device has been seen playing ANY high profile video at all smoothly. Tegra 2 can play some main profile h.264 as long as its encoded exactly how the tegra2 likes it, ie no b frames etc.
The reason people like myself take issue with this is that the original ipad can play 720p high profile h.264 and my epic4g can play 720p high profile h.264. Neither of these devices were sold as being particularly capable of playing hd content. The xoom on the other hand was specifically sold as being able to play hd content, and the tegra.2 was advertised at being particlarly good at doing so. Then when both the xoom and tegra 2 are released we come to realize that it was a bs marketing ploy and "technically" it can display videos that are 720p and 1080p, but only if they are formatted in a ridiculously specific encode.
Sent from my SPH-D700 using XDA App
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This pretty much sums it up.
While I'm keeping my Xoom and have made peace with transcoding my videos I'd be lying if I said I wasn't expecting more from the video playback when I bought it.

MichaelWestin said:
Just because nobody mentioned it..
The problem was/is that users feel that most downloadable HD content files should not have to be re-encoded to play on an $600-$800 device. It is not that we can't use handbrake, or can't figure out how to download the preset which has already been posted on XDA. It is time consuming.
I got over it though, because watching 720P Tv shows on the train with the Xoom is awesome.
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This nails the issue right on the head. Most 720p TV shows available on Usenet or via Bittorrent are encoded using video codec H264 "high" settings. From what I've read, the xoom struggles to play these files, which I would not have expected given its hardware specs. I'm still going to pick up a wifi-only model from Costco on Sunday, but I may jump to the Galaxy Tab if it is able to play "high" H264 files.

patass said:
I cant tell the difference between 720 and 1080 on a 10 inch screen unless I stare so hard I get a head ache anyway.
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DebianDog said:
I do not know many that can tell the difference between high quality 720 vs 1080.
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I'm pretty sure I read awhile back that for small screens (like 27" and smaller), if you're sitting/standing within a distance (say within 10 feet) it is pretty much impossible to tell if something is 720p vs 1080p. It only becomes more apparent on larger screens. Other people have mentioned it's probably too difficult to tell on a 10.1" screen, but I'm pretty sure it IS impossible to tell by just looking at it on a screen of that size. So 1080p is just overkill to me, only if you're going to output it on a large screen or something.

pekosROB said:
I'm pretty sure I read awhile back that for small screens (like 27" and smaller), if you're sitting/standing within a distance (say within 10 feet) it is pretty much impossible to tell if something is 720p vs 1080p. It only becomes more apparent on larger screens. Other people have mentioned it's probably too difficult to tell on a 10.1" screen, but I'm pretty sure it IS impossible to tell by just looking at it on a screen of that size. So 1080p is just overkill to me, only if you're going to output it on a large screen or something.
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You have it wrong. You lose the ability to distinguish the resolution the further away from the screen you get. Since a tablet is right in front of you, you can certainly tell the difference. That said, it isn't really relevant because the Xoom only has a 720p screen and that isn't the point. We already have 1080p video encoded for use on other devices/screens and we don't want to have to re-encode them to play on the Xoom.

khov07 said:
The link provided takes you to a page with XML code...how do you import this to Handbrake? Did you create a notepad file, copy/paste the text, and rename it with a .plist or .xml extension? I couldn't find any info on this in the Handbrake wiki.
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Try this one

sangreal06 said:
That said, it isn't really relevant because the Xoom only has a 720p screen and that isn't the point.
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Yeah, totally forgot to mention that. 1280x800 definitely can't play full 1080p.
And yeah, I didn't factor in the "you sit way closer to a tablet than a TV factor," but I still would find it hard to believe that people could tell the difference of 720p vs 1080p on a 10.1" screen (even if you are 1-2 feet away, assuming the screen does support 1080p). Definitely not old people - my parents at first didn't see the difference between SD and HD. Now they can definitely tell and even laugh about how they couldn't distinguish the two at first.
Yes, they don't have the best eyesight at their age now. This is why I usually drive when we go somewhere.

sangreal06 said:
You have it wrong. You lose the ability to distinguish the resolution the further away from the screen you get. Since a tablet is right in front of you, you can certainly tell the difference. That said, it isn't really relevant because the Xoom only has a 720p screen and that isn't the point. We already have 1080p video encoded for use on other devices/screens and we don't want to have to re-encode them to play on the Xoom.
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I have the "problem" that I ripped all my movies and shows to fit my iPod classic screen (and the car stereo) at 640x480. I unless I want to watch a mini video I'll have to convert the movies anyway. I don't see what the big deal is. If you change your hardware you should expect to run into some kind of trouble. And honestly, our 720p HDTV in the kitchen has a brilliant picture and is hardly any different from the 1080p HDTVs that we have in other rooms.

The "big deal" is for warez peeps who can't play their warez HD videos. They know nothing about video encoding, and they don't want to know. But they do like to get on forums to whine about how they can't play their stolen goods. I've explained enough times that I feel like a broken record, but willful ignorance is a hard habit to break. But once more into the breach...
@muyoso
>Tegra 2 is incapable of playing high profile h.264 video @ L4.1 or higher
There's nothing that said a H.264 video has to be encoded at level 4.1. For 720p @30fps, 3.1 is fine. Check the H.264 wiki you're so fond of quoting. L4.1 is a warez standard.
But if you want, I can post a high profile @L4.1 clip, and I'll bet it will play just fine. Will you then shut up and leave?
>original ipad can play 720p high profile h.264 and my epic4g can play 720p high profile h.264
Great, no need for you to buy anything else then.
>Tegra 2 can play some main profile h.264 as long as its encoded exactly how the tegra2 likes it, ie no b frames etc.
BS. The Handbrake script I've posted, and people have used, used straight main profile (which allows B-frames).
>Then when both the xoom and tegra 2 are released we come to realize that it was a bs marketing ploy and "technically" it can display videos that are 720p and 1080p, but only if they are formatted in a ridiculously specific encode.
What's ridiculous is expecting devices to support warez videos, all of which are encoded for the PC platform, and many of which are badly encoded.
The problem with your whining is that it's all predicated on warez, and that's not something you can offer as evidence when it's put-up time and you're asked for proof.
>Its a limitation of the video decode processor.
And you know this because how? The Xoom is the first HC Teg2 device, and it's still in beta status. Every other Teg2 tab available thus far were Froyo, and all of them were also in beta status. Everything points to the driver support.
I asked you this twice before, and I'll ask it a third time: If you think the Teg2 is incapable of playing your warez vids, why are you still here?

e.mote said:
>Its a limitation of the video decode processor.
And you know this because how? The Xoom is the first HC Teg2 device, and it's still in beta status. Every other Teg2 tab available thus far were Froyo, and all of them were also in beta status. Everything points to the driver support.
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Click to collapse
driver or not, high profile decoding of h264 is a know limitation of tegra2.
http://www.anandtech.com/show/4181/...-a9s-coming-to-smartphonestablets-this-year/3
One of the stones we've thrown at NVIDIA is the lack of high profile H.264 decode support. Tegra 2 can decode main profile H.264 at up to 20Mbps, but throw any high profile 1080p content at the chip and it can't do it. This is a problem because a lot of video content out there today is high profile, high bitrate 1080p H.264.
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[Q] Supported codecs on customer ROM's. 1080p/mkv ??

Other tablets supports fine 1080p, is it possible to run it on custom ROM for A500 (like ported Galaxy Tab 10 rom) ? On the end we have same everything so it should supports same codecs with same performance on Galaxy ROM (or is there Transformer ROM for A500 ??), would be nice to have USB + full support of 1080p....

There is really no reason to play 1080p. 1080p means the second number of the resolution ( if its 256 x 128, 128) is 1080 pixels. However, the highest pixel our device can output is around 720p. On Tabonnay, 1080p is broken, but 720p works. However, using an external videoplayer, such as Moboplayer (i use this, highly recommended) with propriety codecs, i believe 1080p is INDEED possible to play, at least on my custom ROM. Again, 1080p has no meaning, because it is larger than the total amount of pixels our device can display.
EDIT: Better analogy. Its like fitting a Blu-Ray 1080p video on one of those oldschool VGA monitors. It simply isn't worth decoding it just to scale it down, and even if it did, it would still distort the image.

I know what is the resoultion of A500, I don't asking because I want to play it, I simply want compare it to Transformer as I'm not sure of that buy.

Carmamir said:
I know what is the resoultion of A500, I don't asking because I want to play it, I simply want compare it to Transformer as I'm not sure of that buy.
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So let me get this straight, you're Comparing something that has no significance whatsoever, for what!?
Get a Galaxy Tab. No connectivity, but has a nice shiny, and pretty UI!

dongimin2 said:
There is really no reason to play 1080p. 1080p means the second number of the resolution ( if its 256 x 128, 128) is 1080 pixels. However, the highest pixel our device can output is around 720p. On Tabonnay, 1080p is broken, but 720p works. However, using an external videoplayer, such as Moboplayer (i use this, highly recommended) with propriety codecs, i believe 1080p is INDEED possible to play, at least on my custom ROM. Again, 1080p has no meaning, because it is larger than the total amount of pixels our device can display.
EDIT: Better analogy. Its like fitting a Blu-Ray 1080p video on one of those oldschool VGA monitors. It simply isn't worth decoding it just to scale it down, and even if it did, it would still distort the image.
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Dongimin, good analogy! Some ppl just don't get it!

so if u play mkv files in hardware mode u dont get any sound in mkv files i see.
only in software decoding .. but its very choppy then

Play 1080p Video?

I've tried MX player, rock player and the default video player to playback my 1080p videos but they all still lag and play slowly. All videos are in mp4. Are there any apps out there that would be able to do this?
Cheers

try out dice player, and overclock, if ur tf is rooted, should be able to play smoothly. anyway I believe there are threads ard discussing this, please go do a search for them.

darkstar09 said:
I've tried MX player, rock player and the default video player to playback my 1080p videos but they all still lag and play slowly. All videos are in mp4. Are there any apps out there that would be able to do this?
Cheers
Click to expand...
Click to collapse
Dice player is the best by far IMO, even gets rid of the home and back buttons illuminating.
It plays mkv files and I have files over 3gb which also play without any problems.
https://market.android.com/details?id=com.inisoft.mediaplayer.dice&hl=en

Just for fun I searched this forum for "1080p" in the thread title only. This doesn't include all the other random ways someone has asked this exact same question at least 100 other times.
http://forum.xda-developers.com/showthread.php?t=1251784&highlight=1080p
http://forum.xda-developers.com/showthread.php?t=1051629&highlight=1080p
http://forum.xda-developers.com/showthread.php?t=1199268&highlight=1080p
http://forum.xda-developers.com/showthread.php?t=1192865&highlight=1080p
http://forum.xda-developers.com/showthread.php?t=1121428&highlight=1080p
And there are more. I believe on of the rules of xda is to search first and I know it asks if you have searched for existing threads before you start a new one. Granted it searches all of xda to show you threads but the search button is easily found and searches a specific forum.
This is the first rule of xda
1. Search before posting.
I guarantee this has been asked and answered many times this week alone

not sure about 1080p that's going to be hit and miss especially if you have big file sizes.
I'm using revolver 3.2 at 1.3 and can confirm 720p playback with file sizes of 3 gig or so play perfectly with dice player.

This can play back 1080P files just fine....DEPENDING on the bitrate. It's a limitation of Tegra 2. If the bitrate is high, it will have problems. Just like 720P files with really high bitrates have the same limitations.
Honestly, why does it matter? If you're outputting through HDMI to watch things, then I can kinda understand, but the screen itself only supports 720P. Why bother with 1080P?

Just out of curiosity, does overclocking improve video playback?

darkhawkff said:
This can play back 1080P files just fine....DEPENDING on the bitrate. It's a limitation of Tegra 2. If the bitrate is high, it will have problems. Just like 720P files with really high bitrates have the same limitations.
Honestly, why does it matter? If you're outputting through HDMI to watch things, then I can kinda understand, but the screen itself only supports 720P. Why bother with 1080P?
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Bitrate, uh?
How much is "really high"? 10mbps? 16mbps? and why the lower the resolution the higher the bitrate it can handle, if I got your post right?
Nah. I have a 1080p file, 16mbps. Plays well without overclock. I have another 1080p file, 10mbps, dosen't play well even at 1.6ghz. 720p file, still 10mbps, needs overclock (even 1.2ghz is enough). The difference between them? the kind of encoding. All this with Diceplayer, not the horrid Rockplayer, mind you.

Diceplayer works on most of my DSLR footage 1080 with 40-60datarate

AlexTheStampede said:
Bitrate, uh?
How much is "really high"? 10mbps? 16mbps? and why the lower the resolution the higher the bitrate it can handle, if I got your post right?
Nah. I have a 1080p file, 16mbps. Plays well without overclock. I have another 1080p file, 10mbps, dosen't play well even at 1.6ghz. 720p file, still 10mbps, needs overclock (even 1.2ghz is enough). The difference between them? the kind of encoding. All this with Diceplayer, not the horrid Rockplayer, mind you.
Click to expand...
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I'm struggling with 720p encoded @L4. 1.. Mostly all L3. 1 plays nice in diceplayer.
Sent from my GT-I9100 using Tapatalk

If I remember correctly, movies encoded in High Profile will not play back well. Main Profile is the best this machine can handle. I believe it's a Tegra 2 limitation in general.

CptJimmy said:
If I remember correctly, movies encoded in High Profile will not play back well. Main Profile is the best this machine can handle. I believe it's a Tegra 2 limitation in general.
Click to expand...
Click to collapse
Well, high L3. 1 is ok with some oc.
Sent from my GT-I9100 using Tapatalk

hairyonion said:
not sure about 1080p that's going to be hit and miss especially if you have big file sizes.
I'm using revolver 3.2 at 1.3 and can confirm 720p playback with file sizes of 3 gig or so play perfectly with dice player.
Click to expand...
Click to collapse
Let me comment on that:
LOL
Without OC, DICE player (and transformer itself) can only play Level3.1 content and it will slideshow on 99% of internet standard (scene) releases. If you think 'plays perfectly', then you're brain and eyesight damaged.
With OC, you can play play simple 720p content (think WebDL releases) with decent quality (though they will still drop frames in more complex scenes), but more complex releases (think blueray rips) will drop frames on most scenes and slideshow totally on more complex ones.
You would have to be really lucky to find a 1080p movie that will play. Many won't open at all, rest will be dropping frames constantly. When ASUS said that 3.1 update make 1080p playback possible, by playback they meant rendering first frame of the movie.

Dice player is the best
go for it

As mentioned on the other posts about HD playback, the hardware decode of 720p or 1080p H264 with AAC is currently broken in 3.2. Worked fine in 3.1, then got broke. Asus are aware of it and have promised a fix.
If you have such files (e.g. BBC iPlayer HD content) then no player will be able to play them back smoothly as software decode simply can't handle them. Only option is to either transcode or downgrade to HC3.1 to get hardware decode back.
Let's hope the fix is not far off now.

bro just play 720p. trust me you THINK you can tell the difference between 720 and 1080 on a 10' screen but you cant......unless your not human

uploder said:
bro just play 720p. trust me you THINK you can tell the difference between 720 and 1080 on a 10' screen but you cant......unless your not human
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Well, there cannot possibly exist a difference between displaying 720p and 1080p on a 1280x800 screen, since all 1080p content would be scaled down to 720p. Where 1080p would actually matter is if you often connect to a big monitor or HDTV that is capable of 1080p, such as I do on a regular basis for when I want to watch movies without having to boot up my desktop computer. There is definitely a noticeable difference between 720p videos I've converted with Handbrake and the actual 1080p Blu ray movies, but it's not really a big deal for me.
My suggestion for those truly concerned about high quality 1080p playback would be to buy a netbook equipped with a Nvidia ION or comparable video chipset, as I have had no issues playing Blu ray from my own ION-equipped nettop.

yeah my MX player would lag like crazy. Dice is the way to go!

earlyberd said:
Well, there cannot possibly exist a difference between displaying 720p and 1080p on a 1280x800 screen, since all 1080p content would be scaled down to 720p. Where 1080p would actually matter is if you often connect to a big monitor or HDTV that is capable of 1080p, such as I do on a regular basis for when I want to watch movies without having to boot up my desktop computer...........
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Click to collapse
ah i see. then YES. there would definitely be a difference. I just assumed you were watching directly on the TF. my mistake