I watch a lot of nba basketball games which were recorded from an hd internet broadcast called leaguepass. they can be in either mkv or mp4 container but they all have the same type of video and audio streams in it. by the specification i would say that these files should play without any problems, but they don't and i can't seem to find out what the problem is.
from mediainfo:
Code:
General
Unique ID : 205849404232834376135260669527820987358 (0x9ADD2735CC0FBF44BF563FE9F445EBDE)
Complete name : Z:\1_NBA\NBA.2011.03.23\[email protected]
Format : Matroska
File size : 2.21 GiB
Duration : 1h 45mn
Overall bit rate : 2 999 Kbps
Encoded date : UTC 2011-03-24 11:23:59
Writing application : mkvmerge v4.3.0 ('Escape from the Island') built on Sep 5 2010 10:30:51
Writing library : libebml v1.0.0 + libmatroska v1.0.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 45mn
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 1h 45mn
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
the audio plays perfectly, there's no stuttering, but the video seems to play a little bit slower than it is supposed to, and lags behind audio, the lag getting bigger as the clip playes longer. i tried to remux the clip into a .ts (what i sometimes, but not always, have to do to be able to play it on my network media player) and an .mp4 but it doeasn't help.
to me it seems like some kind of a framerate problem maybe, because other hd clips, which have a much higher bitrate, play normally. it seems like the a101 plays videos back at a slower framerate as it should. is this possible? oh, and on my hd capable network media player they play normally.
does anyone have an idea why the clips don't play as they should, and what i should try to make them work? otherwise, i'm very pleased with my a101 but watching these clips on my tablet was one of the main reasons to buy it. so big a reason that i'm considering selling my a101 and maybe getting a tegra2 tablet if i can't make it work, and i really don't want to do that. i know i can re-encode the clips and that this would probably help, but this is not an option, because i have a pretty old notebook, that would take one day to re-encode a 2gb clip like this.
thanks for the help!
speaking of MP4 H.264 play in Gtablet...I suspect the 512MB RAM is not enough juice so 1080 can't play smooth (choppy) in the device.
I convert most of my movies to 720x480 MP4 H.264 and using hardware encoder to (QQPlayer, VPlayer) play and very smooth play but 1080...very very choppy, doesn't matter MOV, MP4, MPEG4, MPEG2..etc
And Yes, if the 1080 movie length is only 10 or 15s (4MB or 8MB), it will looks good (so you see the marketers show the device capable for 1080)...but in the reality, 1080 movie with 7 min (~1.2GB) plays like CRAP LOL...
I wonder how smooth they can be played in Asus Transformer tablet - but I ended my own saga here by staying with 720x480 MP4 H.264 format - good enough for my kids watching 10 movie in the long hour drive!
rcjpth said:
speaking of MP4 H.264 play in Gtablet...I suspect the 512MB RAM is not enough juice so 1080 can't play smooth (choppy) in the device.
I convert most of my movies to 720x480 MP4 H.264 and using hardware encoder to (QQPlayer, VPlayer) play and very smooth play but 1080...very very choppy, doesn't matter MOV, MP4, MPEG4, MPEG2..etc
And Yes, if the 1080 movie length is only 10 or 15s (4MB or 8MB), it will looks good (so you see the marketers show the device capable for 1080)...but in the reality, 1080 movie with 7 min (~1.2GB) plays like CRAP LOL...
I wonder how smooth they can be played in Asus Transformer tablet - but I ended my own saga here by staying with 720x480 MP4 H.264 format - good enough for my kids watching 10 movie in the long hour drive!
Click to expand...
Click to collapse
1080p is 2Mbit per frame, and is larger than the actual display, so it has to be scaled down to 1024x600 as it is decoded - at 24 frames per second. The mp4 (or other) decode + scaling without GPU acceleration is the problem, not the availability of a couple GB for frame buffers.
At a minimum, rescaling your video to fit the native resolution would probably fix it. Most people just don't want to bother
Ram has nothing to do with it ( well it does but even 128 would work )
Its like schettj said, the GPU accell or CPU accell / Multithreaded decode thats the problem.....Ie....Software is the problem.
Hey
I'm no expert with these things but I'm trying to get a mkv 720p file I downloaded to work on my Sony ericsson Arc. Rather than re-encode (takes ages!) I use a program called gotsent, that repackages the MKV into an MP4 that the phone can then play. Sometimes this works, and phones plays the file flawlessly, other times it fails to play. I use VLC media properties to get the information about the files. Two files the phone plays flawlessly. One already converted as it's a HD mp4 trailer from the web and the other a SD MKV that I
converted.
Fast Furious Trailer works
Stream 0
Type Video
Code: H264 - MPEG-4 AVC (part10) (avc1)
Resolution: 1280x720
Frame Rate: 23.976023
Stream 1
Type Audio
Codec: MPEG AAc Audio (mp4a)
Channels: Stereo
Sample rate: 48000Hz
SD MKV FILM COVERTED TO MP4 works
Stream 0
Type Audio
Codec: MPEG AAC Audio (mp4a)
Channels: Stereo
Sample Rate: 48000 Hz
AAC extension: SBR
Stream 1
Type: Video
Codec: H264 - MPEG-4 AVC (Part 10) (avc1)
Resolution 672.352
Frame rate: 25
Now the one that doesn't work after converting,
720p HD Mkv converted to mp4 using GotSent
Stream 0
Type Audio
Codec: MPEG AAC Audio (mp4a)
Channels: stereo
Sample rate: 48000Hz
Stream 1
Type Video
Codec H264 - MPEG-4 AVC (part 10) (avc1)
Resolution 1280x720
Frame rate 23.9767023.
Does anybody know what is going wrong and why the third file refuses to play?
Thanks for any help.
Dan
Try MoboPlayer, it's i thought free on the market. ;0
+1 for Mobo player
Thanks for the advise. However, I have tried Moboplayer, QQplayer, rock player. I find that these will all play HD files that the preinstalled player does well. However, MKV, convter MKV to MP4, the player will render using cpu only, and thus stutter.
I really belittled by how two files, looking identical in their properties, one if playing fine and the other is failing.
It is really an important feature for me, as the HDMI port and HD files will make an ideal media player/network streamer.
Cheers
As far as 720p/1080p mkv's are concerned only Samsung galaxy s1(720p) n s2 n their top end wave models can do it!
Sent from my X10i TripNMiUI using XDA App
Hi. I do know this and willing to sell my Arc to get a Galaxy s2 but the Arc is capable of hardware accelarated mp4 video.
Please read my original post. I'm not trying to play Mkv's on the device, but MP4, which has been converted from MKV H264. Some files play others will not, but their properties look identical.
i think I may have more luck asking in an encoding video sort of forum? Any of you know another forum where I may find someone who could answer my question?
Ask sony ericsson
PlayGunsta said:
Ask sony ericsson
Click to expand...
Click to collapse
u gotta be kidding lol
*Edit- Try muxing the mp4 where Stream 0 is video and Stream 1 is audio. It may be as simple as that...
if not,
Can you post the full media info for the offending file?
Look especially for Format Profile and Format settings, ReFrames. If either of these are too high that may be your problem. Format Profile should be [email protected] or lower and ReFrames should be 8 or less (I think). Even PS3 and some other devices will not play videos outside those parameters. The professionally encoded stuff will work 'cause they know this and make it work on all devices. "Other" encoders usually try to do the same but some ignore it. You can change the Profile Level without reencoding but not the ReFrames.
The only thing I can think of other than that is if the bitrate is much higher than the one that works.
I've been trying to find the best encoding settings for HD/720p H.264 video for G Tablet with Handbrake and I'm not having much luck. I've followed this article for Notion's tablet (since its also a Tegra 2 tablet) and while the picture is great the playback is jittery. I tried lowing the RF (under Constant Quality) to 25 but it produces the same jitters.
Changing the video codec from H.264 to MPEG-4 (FFmpeg) actually produces little to no playback issues but the picture quality isn't as great (its still good though), but I prefer to use H.264.
Any one have any luck encoding HD H.264 video for their G Tablet? If so, can you share your settings?
Thanks in advance
P.S. - I'm running VEGAn-Tab 5.1.1 and using VPlayer, RockPlayer and QQPlayer to play back the videos (they're all suffering from jittery playback).
h.264 mp4 format
size: 1024*600
bitrate: 2500
Frame rate: 30
sample rate: 44100
this is a view sonic special proset from foxreal video tool, for your refenrence
Hi,
I bought the Sony S1 tablet yesterday and for my great dissapointment I found out today that it is unable to smoothly play HD video
I tried 720p video with the following specs:
Code:
Format : Matroska
File size : 1.88 GiB
Duration : 43mn 24s
Overall bit rate : 6 203 Kbps
Encoded date : UTC 2011-10-30 05:14:25
Writing application : mkvmerge v2.0.2 ('You're My Flame') built on Feb 21 2007 23:40:55
Writing library : libebml v0.7.7 + libmatroska v0.8.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 8 frames
Muxing mode : Container [email protected]
Codec ID : V_MPEG4/ISO/AVC
Duration : 43mn 22s
Bit rate : 5 564 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate : 59.940 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.101
Writing library : x264 core 119 r2106 07efeb4
Encoding settings : cabac=1 / ref=8 / deblock=1:2:2 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=10 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=5 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : English
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 43mn 24s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
The players I used were Daroon Player and the original stock Video player and I'm on Honeycomb 3.2.
Playback was very choppy and no audio.
What's your experience with HD video on S1 tablet? Any ideas, how to improve it?
Try mx video player, free from market.
Works great for me!
I found the same issue. A 1080p mkv that plays smoothly on my SGS2 phone stutters awfully on the tablet. I've tried all the suggested video players without success. I'm very disappointed. I hope it's just a SW issue that gets resolved in an update.
sandstroem said:
Try mx video player, free from market.
Works great for me!
Click to expand...
Click to collapse
Thanks, will try it, but I doubt it's any good... I guess it's a codec or some 3.2 quirk...
EDIT:
Tried it and no, it did not help- same choppy video with no sound.
I'm wondering is it supposed to play AC3 sound out of a box?
EDIT2:
In mx player there are some options that I can choose: h/w decoder, s/w docoder and s/w decoder (fast).
When I choose software decoder, then I have sound for like 10 seconds And the picture looks *little bit* less choppier...
I Checked it good reviews and it looks good just have to wait to give me my tablet
It is the tegra 2 chips problem. It can't play High @L5.0 Profile Video..Cause i was P990 user.
You have to convert your video to Divx / XviD MP4.
AVC is no suitable to play higher than 3000kbps
Had the same issues... hence why I returned my tablet a long time ago...
Concerning the HD movies I've come to a conclusion, that it is practically impossible to watch them on the S1 tablet, since the majority of 720p are over 4GB and 1080p movies over 8GB, you really have no way of getting them inside your device.
You cannot store a file that's larger than 4GB on the S1's internal USB storage and Android can only read FAT32 formatted external memory (SD Cards or USB storage devices), so you cannot place your HD movies there either, because of the 4GB limitation of FAT32 file system. (I have tried to format SD card to exFAT, NTFS, Ext2, Ext3 and Ext4, but Android just won't recognize media formatted this way; Actually I'm very confused why it didn't recognize native linux Ext* partitions?).
And since we don't have root, we cannot mount external samba shares either...
So you're stuck and can only watch media with size under 4GB and with lower video bitrates.
***
Is my conclusion correct or is there currently a way to watch HD movies with file size over 4GB on S1?
I've downloaded blu-ray rips at under 4gb and watched them on my 42" tv, and they looked great. Now obviously they're not going to be as good as watching the disc itself, but if they're good enough to watch on a 42" tv and still look like good quality HD, then I'm sure they're good enough to watch on a 9" screen! You really shouldn't need anything above the 720p version - the Sony Tablet's screen is a lower resolution than 1920*1080 so couldn't display a 1080p file to it's full potential anyway.
Hope this helps!
Agreed.
Just that... my entire movie collection is at least 720p Just have to re-encode then I guess.
Guitardave, I totally take your point about the screen not being capable of displaying the full res of 1080p. But for me that's kinda like saying theres no point watching Bluray on an HD Ready (720p) tv because it can't display the full resolution. I don't really want to spend hours transcoding films to watch on the tablet when I go away, and be limited to just watching those which have been done.
It's just a shame, that's all. I expect the next model will cope without any problems. This aside, i'm still impressed and happy with he tab overall.
Just as an experiment, it would be good to download a movie trailer in 720p, and then the same trailer in 1080p, and see if you can actually see any difference in picture quality. I doubt it personally, on such a small screen (as opposed to, say, a 50" tv). Better still, do a blind test - get someone else to start the clips playing, and you make a call as to which is which...
Of course you won't notice the difference on such a small screen, but that's not the point.
The point is, you have to waste time re-encoding your movies to watch them on the go
I've got 720p mkv files to play on mx video player. Just had to switch the audio to sw. Video can be done with hardware no problem Looks amazing
Sent from my Google Nexus S using XDA App
for those who say you can not leave a tutorial here I hope I never have problems with the links as I see that nobody can run hd 1080
http://www.todops3.com/foros/showthread.php?t=30881
I am able to play full 1080p HD video just fine on my sony tablet s. Using the stock video player too. No problem. No lag, no choppy frame-rate. You just need to convert your video to the right codec for tablet. If you go to PlayStation store from your PS3 and download free 1080P trailers and transfer it to your tablet you'll see that it plays perfect! To use the same codec that Sony uses for their HD video trailers in the PlayStation store, I use AVS video converter to convert my video for my sony tablet. And it works flawlessly. But most of my video are already that format so I never really have to convert all of them.
Just load any video in AVS video Converter, select convert to MP4, Under profile select for "tablet", select 1080p resolution(1920x1080p), select mp4 iso v.2-H.264/AVC codec. set the bitrate higher if you want better video qaulity and click convert.
Now you'll have a 1080p video that is perfectly optimized for your Sony tablet.
Thanks, but it still does not solve my main problems. Wasted time on video conversion and the 4GB file limit
Well I guess you would have to slit the movie into two parts if it's a long movie. The codec I use in the method above also compress the file size of the video. I have a 6 minute full 1080p HD video that looks great and it's only around 150MB, so a 1 hour movie would be around 1.5GB? I'm not that great with math. But anyways, it keeps the quality good while lowering the file size, which is good.
I know video conversion can be a waste of time but it's better than waiting for an update or a proper solution. We'll just have to deal with what we can do right now.
I used vplayer for my hd videos. Works well but sound goes out of sync when I adjust volume. I havve to restart vplayer.
try dice player I tried 720p video and it works with my tablet S make sure download tegra2 plugin