Database Develop

Playing AVI files

Is there an app which can play AVI files?

i think i will bump this as this is a most have and a down side to owning a hero !

Forward the notion.

I'm with you on this. Not being able to play .sci is a real pain.
I've also put some .mp4 files on which haven't played either for some reason. Does anyone know if there is a specific format for video on the hero? Is there a specific converter anyone is using ?
Cheers,
HP

Using something like Handbrake to convert your videos should work. If it has a setting for Apple iPods/iPhones just use that.
Or, it should support the following:
- MP4 container format
- MPEG-4 AVC (also known as h.264) video, max [email protected] (try main profile, try disabling CABAC and B-frames for more reliability)
- AAC (AAC-LC) audio, 48khz suggested sample rate
- Keep overall bitrate low, try from 800kbps to 2000kbps

like most mobile devices, ofcourse there is a limit on the codecs supported, and what levels and settings in the codec that work.
In the current state, all / most clips that are _above_ the native resolution won't play at all. And as a quick rule: H264 @ level 2.1 will work, maybe some 3.0 stuff also works, but I don't know.
Basicly, make sure the MP4's you have are iPhone compatible but 480x320 or lower resolution and the Hero will play them fine.
Any video converter tool (handbrake / Megui / Mediacoder / commercial tools) wil work if you give them the iPhone preset.
About playing AVI files, nobody has written anything yet. Don't really know why people didn't jump on the bandwagon for this kinda of thing. Mostly some sort of ffmpeg-based player will appear quickly on a platform. Maybe it's the java development thing.
Anyway, convert your video's to iphone compatibility at the moment and they should play fine.

Keep in mind that AVI is an older, inferior container format to MP4, and the MPEG-4 ASP (DivX) codec often used with AVI is inferior to MPEG-4 AVC (h.264) usually used with MP4. So you aren't being ripped off in terms of quality or technology. They just neglected to support the older format. Hopefully apps can bridge the gap in future (apps with native libraries that is, not the virtual machine). Given the lower system requirements, I'd say that it would probably be capable of playing an AVI/DivX file encoded up to 640x480x30fps (my old Nokia with a 369MHz CPU can come close).
For best results, however, use handbrake to convert from the original, or from your existing AVIs, to a nice ipod compatible, 480xsomething pixel MP4. Go direct from the original to MP4 (without AVI in between) for even better quality.

however, still after converting that video lags all the time (closed all apps either)

Did you update to the latest firmware? The original shipped firmware has a known issue that the video 'stutters' every second or so for a bit.

ah oaky, this might be the problem... waiting for donut released officially by htc for hero

[Q] NC: xvid, Rockplayer and quality?

Can anyone with a *rooted* NC tell us a bit about video quality on the device. Basically, I am curious about the capabilities to play "scene" quality xvid/classic divx materials. Ie conforming to specs.
I kind of guess that the processor would hold up, but I am not sure.
I am only interested in locally stored content, ie on sd card (for simplicity's sake, let's assume that we have a plain vanilla SDHC card).
Cheers,

My experience with Rock and other players except the standard one (and that was for MP4 only) has been less than stellar.
Like other users on here, I am getting audio-visual lag, leading to me having to pre-convert everything for the device in order to get a working copy. The lag is slight on AVI files and MKV files grind down to a slideshow while the audio stays straight on, leading me to believe that whatever back-end conversion is being done on-the-fly is killing the processor.
My guess is that once we have Froyo (or god willing, Gingerbread), we'll have much better MKV and AVI playback. Until then, I suggest conversion if you've got the time or Rockplayer if you don't mind a bit of lag on AVI files. Hope that helps!

An unrooted NC plays my AutoGk 480p rips in the built in player if you remux it into an .mp4 file with AAC audio.

I get lag also. Weird thing is if you stream a video from the twit app it looks really good and no lag at all.
Sent from my ADR6300 using XDA App

Ok guys, great, I appreciate the info - thanks!!!

ThePettyTyrant said:
An unrooted NC plays my AutoGk 480p rips in the built in player if you remux it into an .mp4 file with AAC audio.
Click to expand...
Click to collapse
This is something most people don't realize you can do. The video stream in an xvid/divx avi CAN be read by most mp4-friendly devices. But it's in a container they don't know how to read, and may have an auto track they can't read.
You can remux is with any one of a number of tools to drop it into an mp4 file without reencoding the video (and, depending on the source material, possibly reencoding the audio, which is super-fast on any modern machine).

Since the stock NC has no frame buffers enabled video performance will suffer ... when it is eventually enabled (it will be) performance should be good.

I was going to start a thread similar to this but more asking what format is best on the NC.
I've tried some standard xvids in rockplayer, and there is a slight lag on the audio. But enough that makes it annoying to watch.
When rockplayer first opens a video, I get a prompt on hardware or software decoding, I tried hardware and obviously that fails.
So does the NC support hardware assisted format? if so, what format exactly? What codec, bit rate limits, accepted resolutions etc. And not only for smoother playback, but I assume hardware assist would save (a lot?) on battery performance.
I used it encode a lot back in the day, using tmpgenc, virtualdub and avisynth, but I haven't touched any of that in ages. Has someone wrote a guide regarding this specific to the NC?

If you look at the Nook Color spec sheet, one of the supported video formats is H.264. I've gotten hardware-assisted playback of H.264 on my Nook - plays and looks great.
However!
The Nook only supports H.264 baseline profile. If you use Handbrake to encode, use the iPhone/iPod preset as a starting point. Then you can up the bitrate, resolution etc from there.
Another note: I've found the built-in player does not know about anamorphic ratios, so the videos are scaled incorrectly.

sark666 said:
So does the NC support hardware assisted format?
Click to expand...
Click to collapse
Yes. Sort of.
The OMAP3621 does have dedicated video decoding hardware. Unfortunately, it's pretty well locked down by the manufacturer. You don't get access to the hardware without a license, which means most (all?) 3rd party players aren't going to be able to utilize it. It sucks, but it seems to be par for the course for smartphone/tablet chips these days.

Another note: I've found the built-in player does not know about anamorphic ratios, so the videos are scaled incorrectly.
Click to expand...
Click to collapse
The OMAP3621 does have dedicated video decoding hardware. Unfortunately, it's pretty well locked down by the manufacturer. You don't get access to the hardware without a license, which means most (all?) 3rd party players aren't going to be able to utilize it. It sucks, but it seems to be par for the course for smartphone/tablet chips these days.
Click to expand...
Click to collapse
Well, I was going to say I'll use rockplayer so I don't have to add borders or something to force aspect, but then I read no one else can access the hardware encoder and this is typical?!
Sigh.. It never ends the way they try and lock these devices down. This sure ain't the pc world (which it should be, but they are trying to get it 'right' this time.)
So you refer to the TI, is this also true of the Nook Color?
At any rate, I'll remuxing as suggested earlier in this thread to mp4 container. What the best (hopefully free/open source) remuxer these days?

I used YAMB but I don't know if something better exists. If you use YAMB, you'll have to convert any AC3 audio to AAC ahead of time. I didn't test if MP3 audio is supported.

Hopefully VLC will be ported to Android too, would seem to be a more "natural" fit than the iPad it currently runs on!

sark666 said:
but then I read no one else can access the hardware encoder and this is typical?!
Click to expand...
Click to collapse
Yes, very.
If it's any consolation, it's not the device manufacturers or android team that is to blame, it's the chip manufacturers. The SoC in the NC is made by TI, who licenses all the different cores they stick in their chips. In this case, the video decoding hardware is part of the SGX530 GPU core licensed from PowerVR. While TI pays for the right to use the core in their chips, any software dev who wants to actually take advantage of the decoding hardware has to pay PowerVR for the drivers that allow them to do so. It's pretty crappy from our perspective, but it is their IP so it's their prerogative. I'm sure the chip, device and software makers would all prefer to use open hardware, but there are not currently any open GPU cores out there. At least, none that come within a mile of the "locked down" ones.

The M4V fileformat plays awesome on the NC and the quality is exceptional even with smaller filesizes (370ish megs for a full length movie) No lag at all.
The player I use is: mVideoPlayer (Free)
search for “mVideoPlayer” without the quotes in the android market.
PS It can play most (if not all) formats supported by Android/NC.

OMAP 3621 has a C64x+DSP
The OMAP 3621 has a C64x+DSP. That should be usable for hardware video decoding. In fact I beleive that TI has made video codecs available for their DSPs in the past, and there was even a Google Summer of Code project to create a Theora codec for the DSP.
This TI page tells you that the 3621 has a C64x+DSP: http://newscenter.ti.com/Blogs/news...ers-costs-for-ebook-manufacturers-305022.aspx

Droidish said:
The M4V fileformat plays awesome on the NC and the quality is exceptional even with smaller filesizes (370ish megs for a full length movie) No lag at all.
The player I use is: mVideoPlayer (Free)
search for “mVideoPlayer” without the quotes in the android market.
PS It can play most (if not all) formats supported by Android/NC.
Click to expand...
Click to collapse
I'll second that. mVideoPlayer is the best thing going, also does subtitles if you've got them (use same filename, eg. MyVid.m4v + MyVid.srt)
If you end up converting videos I have had success with Handbrake (nightly build) using the iPhone profile, 720px width, 2 ref frames. Video bitrate at 900kbps seems to be enough (650kbps for Pixar films).

I think the B&N website explicitly states that the hardware video decoder renders everything to 854x480 and upscales all video to fit the screen. If you're converting just for the NC, it might be a waste to go above that resolution.

testulous said:
I'll second that. mVideoPlayer is the best thing going, also does subtitles if you've got them (use same filename, eg. MyVid.m4v + MyVid.srt)
If you end up converting videos I have had success with Handbrake (nightly build) using the iPhone profile, 720px width, 2 ref frames. Video bitrate at 900kbps seems to be enough (650kbps for Pixar films).
Click to expand...
Click to collapse
Ah yeah about the subs... In mVideo If you long press on any movie in your list one of the options is to download subs for that movie (there are some other things hidden there as well). It doesn't always find them but the option is there.

[Q] Will we have tegra2 hdmi 1080p mkv h.264 bd-rip hardware decoding?

Will we have tegra2 hdmi 1080p mkv h.264 bd-rip hardware decoding?

our o2x doesn't support NEON and therefore isn't great at decoding video. it is as important as MMX was in the Pentium 1 days, it seems!

wapz said:
our o2x doesn't support NEON and therefore isn't great at decoding video. it is as important as MMX was in the Pentium 1 days, it seems!
Click to expand...
Click to collapse
I thought NEON abandoned coz nvidia states h.264 support in h/w, while neon instruction set helps to decode video in s/w. Gurus will correct me.

JugglerLKR said:
I thought NEON abandoned coz nvidia states h.264 support in h/w, while neon instruction set helps to decode video in s/w. Gurus will correct me.
Click to expand...
Click to collapse
maybe. but so far nobody has been able to smootly play full 720p mkvs properly, which seems to work on the tablets with tegra2 that do support NEON. so why is that different?
flash 10.3 also uses neon since the last update. see changes for new version.

wapz said:
maybe. but so far nobody has been able to smootly play full 720p mkvs properly, which seems to work on the tablets with tegra2 that do support NEON. so why is that different?
flash 10.3 also uses neon since the last update. see changes for new version.
Click to expand...
Click to collapse
probably new Tegra (Kal-El) series with NEON instruction sets from ARM and 1080p H.264 High Profile video decode
but according to this link : http://en.wikipedia.org/wiki/Nvidia_Tegra
all current tablets uses the same chip without NEON... again correct me if I'm wrong.

You're correct, there is not one tegra 2 chip with NEON. But the tablet or whatnot that can play 720p mkv probably have a player that supports MKV decode on hardware (gpu). The O2X can't handle mkv with the in-built player, and thats the only one with HW-acceleration, as of yet. Hopefully there will soon be one, or if we can port from the SGS2 with tegra (i9103).

Mkv is just a container format. These days mkv videos usually contain h.264 avc video just as .mp4 videos do, and .mp4 videos can be played back smoothly up to 1080p resolution (however just with base profile).
NEON is indeed an expanded set of processor instructions, and Tegra2 does not support it.
However, NEON is only of use if you do the decoding on the CPU in software.
Since most video will be decoded in hardware on tegra2 devices, Nvidia chose to leave out the NEON instruction, since those need a lot of space on the chip.
However it is true that the next generation tegra 3 chip (which actually has a quad core cpu) should support the NEON instruction set, which helps speeding up handling some features in software.
However, since it is my understanding that Nvidia also plans to improve hardware video decoding on tegra 3 so it should support h.264 main or even high profile 1080p videos, it is not of the upmost importance.
Hardware decoding is more efficient (and thus will save battery life) than using NEON. So whenever having the choice, go for hardware decoding...
The reasony why high resolution .mkv files cannot be played fluently is just because the standard video player does not yet support the .mkv format, and only the standard video player supports using the hardware video decoding feature.
What actually happens when you play back a video file is that the software reads and understands the container format, which contains a raw video and audio stream. The player software then handse the video off to the hardware so it can do the decoding. The audio is also decoded - common formats possibly also in hardware.
The player controls the decoding and then feeds the decoded video to the screen and the audio to the speakers.
The standard player just does not understand the .mkv container format and thus cannot reach the embedded h.264 video.
So when you use another player that does suppot .mkv then it will usually do the decoding in software, which cannot do it fast enough for high resolution videos.
However, there is great news on this!
A new update is due to arrive soon, probably until the end of the month that will include support for mkv videos, and thus mkv can be played in hardware..
This update is already available in in korea for their version LG-SU660, and judging from this post from LG:
http://www.facebook.com/pages/LG-Optimus-Speed/192477164116791
those improvements will also come to the european P990 version.
See here a thread about the improvements of the korean version:
http://www.facebook.com/pages/LG-Optimus-Speed/192477164116791
Just to be sure, i'll provide them here again:
Faster internet browsing
Support .mkv
Hardware support for 720p h.264 4.1hp
60 frame xvid works
Little bit better LG home
Little bit faster for everything.
Apparently this also includes an improvement of the use of the tegra2 hardware to also allow high profile 720p video (before it just supported low profile). This 4.1hp video is for instance used on youtube, if my information is correct...
So to answer your original question:
You will be able to play back high resolution h.264 mkv files.
However, it will probably not be able to play all of them, because the tegra2 hardware only supports the base profile for 1080p.
So it actually depends on how the rip was made.
You can already make bd rips in 1080p that will play fine on a tegra 2 device.
For instance, if you use handbrake to encode videos, choose the MP4 container format and H.264 (x264) as video codec, and in the advanced tab in the text field, enter this line:
ref=2:bframes=0:subq=7:mixed-refs=0:weightb=0:8x8dct=0:cabac=0:weightp=0:me=umh:trellis=0:cqm=flat
This will create a video in base profile that should play fine on a tegra 2.
(Please note that some settings in that line are optimized for quality, not encoding speed. You can for instance alter the subq parameter to a lower value such as 6 and remove the me_umh option, which will result in faster encoding but worse quality).
This ofcourse requires you to have/own the bluray to create such a copy.
You are on your own for anything else...
Btw, i did not take part in the survey since the correct answer is more complex than just yes or no and ticking individual boxes.

I hope my O2X can play. T_T

So...does Tegra 2 now smoothly play 1080p h.264????

Man, what do you do for living? Tanks for all this clear technical exposé!
Hironimo said:
Mkv is just a container format. These days mkv videos usually contain h.264 avc video just as .mp4 videos do, and .mp4 videos can be played back smoothly up to 1080p resolution (however just with base profile).
NEON is indeed an expanded set of processor instructions, and Tegra2 does not support it.
However, NEON is only of use if you do the decoding on the CPU in software.
Since most video will be decoded in hardware on tegra2 devices, Nvidia chose to leave out the NEON instruction, since those need a lot of space on the chip.
However it is true that the next generation tegra 3 chip (which actually has a quad core cpu) should support the NEON instruction set, which helps speeding up handling some features in software.
However, since it is my understanding that Nvidia also plans to improve hardware video decoding on tegra 3 so it should support h.264 main or even high profile 1080p videos, it is not of the upmost importance.
Hardware decoding is more efficient (and thus will save battery life) than using NEON. So whenever having the choice, go for hardware decoding...
The reasony why high resolution .mkv files cannot be played fluently is just because the standard video player does not yet support the .mkv format, and only the standard video player supports using the hardware video decoding feature.
What actually happens when you play back a video file is that the software reads and understands the container format, which contains a raw video and audio stream. The player software then handse the video off to the hardware so it can do the decoding. The audio is also decoded - common formats possibly also in hardware.
The player controls the decoding and then feeds the decoded video to the screen and the audio to the speakers.
The standard player just does not understand the .mkv container format and thus cannot reach the embedded h.264 video.
So when you use another player that does suppot .mkv then it will usually do the decoding in software, which cannot do it fast enough for high resolution videos.
However, there is great news on this!
A new update is due to arrive soon, probably until the end of the month that will include support for mkv videos, and thus mkv can be played in hardware..
This update is already available in in korea for their version LG-SU660, and judging from this post from LG:
http://www.facebook.com/pages/LG-Optimus-Speed/192477164116791
those improvements will also come to the european P990 version.
See here a thread about the improvements of the korean version:
http://www.facebook.com/pages/LG-Optimus-Speed/192477164116791
Just to be sure, i'll provide them here again:
Faster internet browsing
Support .mkv
Hardware support for 720p h.264 4.1hp
60 frame xvid works
Little bit better LG home
Little bit faster for everything.
Apparently this also includes an improvement of the use of the tegra2 hardware to also allow high profile 720p video (before it just supported low profile). This 4.1hp video is for instance used on youtube, if my information is correct...
So to answer your original question:
You will be able to play back high resolution h.264 mkv files.
However, it will probably not be able to play all of them, because the tegra2 hardware only supports the base profile for 1080p.
So it actually depends on how the rip was made.
You can already make bd rips in 1080p that will play fine on a tegra 2 device.
For instance, if you use handbrake to encode videos, choose the MP4 container format and H.264 (x264) as video codec, and in the advanced tab in the text field, enter this line:
ref=2:bframes=0:subq=7:mixed-refs=0:weightb=0:8x8dct=0:cabac=0:weightp=0:me=umh:trellis=0:cqm=flat
This will create a video in base profile that should play fine on a tegra 2.
(Please note that some settings in that line are optimized for quality, not encoding speed. You can for instance alter the subq parameter to a lower value such as 6 and remove the me_umh option, which will result in faster encoding but worse quality).
This ofcourse requires you to have/own the bluray to create such a copy.
You are on your own for anything else...
Btw, i did not take part in the survey since the correct answer is more complex than just yes or no and ticking individual boxes.
Click to expand...
Click to collapse
Sent from my LG-P990 using XDA App

So which p990 Fimrware enables 4.1 Hi Profile H264?
Please point me to which firmware enables 720P Hi Profile 4.1 H264 for the P990 model.

I also wana know which firmware or APP can decode h.264 Hiprofile 1080p MTS videos smoothly.
I have tried mxplaer, diceplayer or p990 media player but none of them could decode it right. Is there any way to decode it?
Sent from my LG-P990 using XDA App

scalexda said:
I also wana know which firmware or APP can decode h.264 Hiprofile 1080p MTS videos smoothly.
I have tried mxplaer, diceplayer or p990 media player but none of them could decode it right. Is there any way to decode it?
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
you can't play 1080p in hiprofile, only 720p

for me not even 720p HP worked

-sandro- said:
for me not even 720p HP worked
Click to expand...
Click to collapse
if you use handbrake to encode videos, choose the MP4 container format and H.264 (x264) as video codec, and in the advanced tab in the text field, enter this line:
ref=2:bframes=0:subq=7:mixed-refs=0:weightb=0:8x8dct=0:cabac=0:weightp=0:me=umh :trellis=0:cqm=flat
just convert you movies like this also work with 1080p^

that's the problem I have to reconvert 720p files already with high profile but different encoding settings = fake hd decoding of this chip

My stock V10D plays 720/1080p h264 mkv just fine!
I do have to convert some video to a lower profile in order to play them but right now I can play
H.264 mkv in profile [email protected], 1920x1080 at 27fps fine no problem!
Average filesize for such a movie is 4-6 GB, 720p @30fps runs fine as well.

I mean they released this "amazing chipset with dual core capabilities bla bla" and they can't even handle common 720p files but the sgx540 released 1y earlier can

-sandro- said:
I mean they released this "amazing chipset with dual core capabilities bla bla" and they can't even handle common 720p files but the sgx540 released 1y earlier can
Click to expand...
Click to collapse
I totally agree with you. Tegra2 is really bad with h.264 high profile videos.
Sent from my DJDroid LG 1.2.1 using XDA App

NVIDIA Tegra 2 optimized Video Player

Found this at the transformer forum..
*Phi* said:
Just thought i'll share,
https://market.android.com/details?id=com.mxtech.videoplayer.ad&feature=more_from_developer
its a multi-format player called MX videoplayer(in case the market link doesnt work).
so far seems good, comparable to mobo player
Click to expand...
Click to collapse
Couldn't agree more.
regards

Thanks! Best player so far!

Wish there was a no-ads option, but it's good.

ZanshinG1 said:
Wish there was a no-ads option, but it's good.
Click to expand...
Click to collapse
I'm going to send a note to the Dev telling him he should make a Paid, No-Ads option. A while back someone posted a ~95MB .mkv of Planet Earth in 1080P, and while MX player doesn't play it in any usable FPS, no other Xoom player I've seen will even attempt to touch it.
I'd pay $5 for this one. I'm just surprised how limited the Tegra2 HW codecs are; so many of the videos I have play in SW mode (but then again, maybe NVidia hasn't released all the specs necessary to take advantage of them?)

I really don't get why anyone wants 1080p playback (unless it's for HDMI of course) since it's a 16:10 1280x800 screen, which is 720p (plus the extra 80 rows of pixels for the menu bar).

kcrudup said:
I'm going to send a note to the Dev telling him he should make a Paid, No-Ads option. A while back someone posted a ~95MB .mkv of Planet Earth in 1080P, and while MX player doesn't play it in any usable FPS, no other Xoom player I've seen will even attempt to touch it.
I'd pay $5 for this one. I'm just surprised how limited the Tegra2 HW codecs are; so many of the videos I have play in SW mode (but then again, maybe NVidia hasn't released all the specs necessary to take advantage of them?)
Click to expand...
Click to collapse
really nice player indeed.
...but would even kill for a player with playback rate control and pitch correction through... (any dev listening? =] )

brandogg said:
I really don't get why anyone wants 1080p playback (unless it's for HDMI of course) since it's a 16:10 1280x800 screen, which is 720p (plus the extra 80 rows of pixels for the menu bar).
Click to expand...
Click to collapse
because no one wants to reencode before watching.

I tested with 720p mkv movies and not work. Screen remains black, but is not running. Any tip? Mobo Player run 720p, but slow or dropping frames.

I have only tested MxVideoPlayer on divx/avi files and it is very similar to Moboplayer. I'd pay for a paid app also without adds if they would add/fix a few things below..
- Auto Rotate option.
- video playback should have option of resume or start over. I found a few bugs playing/resuming on videos that were incomplete. MxVideoPlayer would then show Video Playing Error when clicking on play because video was stuck on that *end spot*. The fix was to reset counters in preference to fix.
- add next/previous video button to toolbar and auto play next video in preferences.
Fix the above and remove adds and then I'll pay for that app.

brandogg said:
I really don't get why anyone wants 1080p playback (unless it's for HDMI of course) since it's a 16:10 1280x800 screen, which is 720p (plus the extra 80 rows of pixels for the menu bar).
Click to expand...
Click to collapse
Who wants 1080(p)?

1080p will be on the Xoom 2..the screen on that thing goes way beyond 1080p.
Sent from my DROIDX using XDA App

Well I guess I get it if you have a 1080p movie that you want to watch on your PC, PS3, etc, and don't want to download (or *ahem* re-encode) a 720p version. That makes sense then.

I'm intrigued by, and appreciative of, the suggestion. I did download and try it, but I don't see anything to tear me away from Act 1 (which I've been quite happy with). Probably, I don't understand which format to use - but, I tried re-encoding a movie at 1080 and MX Video wouldn't play it any better than Act 1. Which is to say, I got a "format not supported" message and no joy...

Any ideas why this app (MX videoplayer) needs our GPS location?

this app is cool.
Thanks for sharing.
REgards

you guys see a diff between s/w code and h/w codec. Seems the same

It is not working for me, are there requirements for specific mkv codecs?? my mkv files never worked proporly 3.0, 3.1 or 3.2 with mobo, rockplayer or this one (just tried with 3.2)

Nothing will play in HW, it all plays SW. Even when I uninstall and reinstall both the app and codec.
Thanks happened to me with Mobo Player as well.
Stock, non-rooted, US WiFi only on 3.2.
Any ideas?

Timbledore said:
Nothing will play in HW, it all plays SW. Even when I uninstall and reinstall both the app and codec.
Thanks happened to me with Mobo Player as well.
Stock, non-rooted, US WiFi only on 3.2.
Any ideas?
Click to expand...
Click to collapse
What kind of files are you trying to play? HW mode means that the app will make use of the Tegra2 hardware acceleration.
That means it will be subjected to the limitations of the Tegra 2 chip. The Tegra 2 chip can only decode certain 720p h264 formats with certain profiles and up to a certain bitrate. Let's not even go into 1080p.
Not only that, the Tegra 2 can only decode certain audio streams as well, so if your videos are in AC3 audio, you have to reencode the audio to something like AAC.
You can use a program like Mediainfo to check what formats your video files are in.
Edit: I think some folks are still not familiar with video formats and what the extensions mean. Mkv is just a container format for video files, similar to Avi. What's important is what codecs are used to encode the video and audio streams.
For example Avi files usually have divx/xvid encoded video streams and mp3 audio streams, mkv files have h264/mpeg4 AVC video streams and AC3/AAC audio streams.
So 3rd party apps are just able to open up these video containers and attempt to decode the video and audio streams for your viewing.
But they will use the CPU to process them using the app's built in codecs where possible if the chipset doesn't support it.
You can refer to the official specs of the Tegra 2 to determine what kind of video/audio compression formats it can decode.
So technically, the Xoom can playback avi files encoded with divx but because using software to decode requires some licencing fee in certain scenarios so that's why Honeycomb has no basic support because being "open source", Google did not pay for the licenses to playback some of the supported video formats. I may be wrong about this but it makes sense.
If you see other tablets like the Transformer or the Acer Iconia, you will realize they can playback more formats because the manufacturers probably paid for extra licenses and added playback capability into the OS. At least that's what I figured out.

musashiken said:
What kind of files are you trying to play? HW mode means that the app will make use of the Tegra2 hardware acceleration.
That means it will be subjected to the limitations of the Tegra 2 chip. The Tegra 2 chip can only decode certain 720p h264 formats with certain profiles and up to a certain bitrate. Let's not even go into 1080p.
Not only that, the Tegra 2 can only decode certain audio streams as well, so if your videos are in AC3 audio, you have to reencode the audio to something like AAC.
You can use a program like Mediainfo to check what formats your video files are in.
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Thanks, these are mostly xVid with AC3.
Mainly TV shows that I have missed. I rarely have time at home to catch up and more time on the move.

[Q] New update -> MKV support ?

Hello everyone,
I'm new here, I don't know nothing about what you are all talking about here ^^ BUT a friend told me that the new update allow the O2X to play MKV files > Is that true ? He told me trough an email.
I happy with the version I have right now and if it supports mkv with the new update, I will definitely install it.
Thanks for reading me.

I think we could always do it with certain programmes because the mobile can process it. But according to wikipedia, 4.0 reproduces mkv natively so yes, it should.

ads88 said:
I think we could always do it with certain programmes because the mobile can process it. But according to wikipedia, 4.0 reproduces mkv natively so yes, it should.
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can you provide me the link please :victory:

dawizard11 said:
Hello everyone,
I'm new here, I don't know nothing about what you are all talking about here ^^ BUT a friend told me that the new update allow the O2X to play MKV files > Is that true ? He told me trough an email.
I happy with the version I have right now and if it supports mkv with the new update, I will definitely install it.
Thanks for reading me.
Click to expand...
Click to collapse
Hi friend,
Yes the latest V30a ICS update allows MKV format to play on native video player app.Also flv video format is also supported by the native video player.Checked on my O2x.Just that 1080pi full HD videos are not supported yet.So have fun watching vids or movies without the inconvenience of converting

arvindlakra21 said:
Hi friend,
Yes the latest V30a ICS update allows MKV format to play on native video player app.Also flv video format is also supported by the native video player.Checked on my O2x.Just that 1080pi full HD videos are not supported yet.So have fun watching vids or movies without the inconvenience of converting
Click to expand...
Click to collapse
Thanks I will definitely update ! Mkv + hdmi on the O2X make it a good device.
:good: for the flv, my friend didn't know that

The O2X has been able to play MKV's since Gingerbread...but only to a low profile level. MKV's downloaded (tv shows etc) are all 720p HIGH Profile and the phone could not support that as the Tegra chip couldnt handle the HIGH profile.
Are you saying that our phones can now play 720p HIGH profile MKV's...because, if it can, I may actually update!

ruggs1234 said:
The O2X has been able to play MKV's since Gingerbread...but only to a low profile level. MKV's downloaded (tv shows etc) are all 720p HIGH Profile and the phone could not support that as the Tegra chip couldnt handle the HIGH profile.
Are you saying that our phones can now play 720p HIGH profile MKV's...because, if it can, I may actually update!
Click to expand...
Click to collapse
i try using mxplayer, with 720p High profile @L4.1 still the video lags and not smooth using s/w decoder. i think with handheld, it can't play mkv with high profile. only use low profile and it's playback smoothly

Thanks to Ncyde47 on another thread here...a much better explanation....
You can run 720p or 1080p fluid.. spawndk from the eepad transformer forum:
"The Tegra2 chipset are designed as a mobile sollution chipset - to support web 2 standards. The highest encoding profile used here (Youtube 1080p) are 1080p baseline and this the Tegra2 chipset will both record and play with no troubles. As well as 720p baseline and main profile - but only upto L3.1 with some limitations. It doesnt matter which container is used (mkv, mp4, m4v, avi etc) and it doesnt matter if resolution are 1080p - its only a matter of the encoding profile used to encode the supported video format H264
Tegra2 will NEVER be able to decode High profile L4.1 encodes - it's not a software issue, neither in terms of Honeycomb or Nvidia libs, its simply a limitation of the abilities of the hardwaredecoder in the Tegra2 chipset and this will never change. It is also not a limitation in the Transformer specifically, but a limitation in ALL Tegra2 based tablets and mobilephones.
This is the same reason why some mediaplayers like the Boxee Box that was originally intended to use the Tegra2 moved on to an Intel chipset before launch.
In short the Tegra2 chipset will support playback of videos encoded in 1080p or 720p resolution, using the H264 video codec and AAC audio codec - as long as the video are encoded after the baseline profile standard
It will not now or ever - play 1080p/720p encodes encoded after the high profile standard."
So basically, you have to reencode videos just like on ipad..

ruggs1234 said:
The O2X has been able to play MKV's since Gingerbread...but only to a low profile level. MKV's downloaded (tv shows etc) are all 720p HIGH Profile and the phone could not support that as the Tegra chip couldnt handle the HIGH profile.
Are you saying that our phones can now play 720p HIGH profile MKV's...because, if it can, I may actually update!
Click to expand...
Click to collapse
Friend,
As you said that O2x was able to play MKV video format since GB but in a low profile level.But after the O2x was updated to latest V30a ICS upgrade the native video player app is supporting more formats and can play 720p high profile MKV video formats.I tried to play 720p BRRIP x264 dual audio.mkv movie and it played smoothly, without any audio delay as experienced in GB.Only problem that i faced with native video player was that i was unable to select the preferred audio language in dual audio mkv file as there is no option to select audio language.Other wise native video player is superb:good:.

Thread moved. Please post all question threads here in Q&A in future where they belong.
Thanks
AvRS

that is great to know. love mkv.

L3.1 can be called High profile yet and O2x can handle it with 720p. sometimes i find some video that physicaly gets over phone posibilities. its played with HW decoder and its not very smooth.
if you want to made 1080p videos, use handbrake and set the settings with tegra decoding possibility manual. But i dont know if something changed with ICS, but i was not able mount SD card with other FS than fat32 and there is not posible to have file with more size than 4GB and its not enough for 1080p movie in low profile

arvindlakra21 said:
Friend,
As you said that O2x was able to play MKV video format since GB but in a low profile level.But after the O2x was updated to latest V30a ICS upgrade the native video player app is supporting more formats and can play 720p high profile MKV video formats.I tried to play 720p BRRIP x264 dual audio.mkv movie and it played smoothly, without any audio delay as experienced in GB.Only problem that i faced with native video player was that i was unable to select the preferred audio language in dual audio mkv file as there is no option to select audio language.Other wise native video player is superb:good:.
Click to expand...
Click to collapse
You attached thumbnail indicates that what you were sucessfully watching was indeed an MKV file (a 720p rip) but it does not indicate the profile of the file.
Most downloaded high definition MKV video files, especially tv shows, are MKV files (at 720p) encoded to HIGH profile level 4.0 or above. In Gingerbread these files would not play unless they were converted to mp4 at a lower profile than HIGH (I used BASELINE). This is a limitation of the Tegra 2 chipset in the phone.
Your Cloverfield file is an MKV, but I strongly suspect that the profile of the file is lower than HIGH (the file size is too small for a high definition, HIGH profile encoded movie with that runtime)
Sadly, im still not convinced the phone will play an MKV high definition file encoded at HIGH Profile 4.0 or above. And I dont intend to risk upgrading to ICS (with all the problems that could bring) to find out.
However, I would love to be proved wrong....