In particular MKV files.
I have noted that if I playback an 720p MKV with AC3/DTS sound the video plays perfectly fluid. No microjudder or frame drops AFAIK. But there is no sound of course because the inbuilt player does not support AC3/DTS natively.
However add AAC 2.0 audio into the file (MKV or MP4 container it matters not) I see judder. Kinda like when you have 23.976FPS playing on a 50Hz PAL CRT.
I have tried muxing at various framerates and interestingly the judder gets faster the higher the FPS. Very odd.
I'm used to dealing with AV stuff as I use MPC-HC/ReClock/MadVR etc to my HDTV over HDMI (BTW my Panasonic G20 Plasma does not recognise the TF HDMI output. My PC monittor does however so the TF is outputting in an unsupported res/Hz for my HDTV obviously).
It's puzzling me how when the TF does not have to playback audio the video is perfect but as soon as it has to decode audio it throws a wobbly.
The other interesting thing of note is that Youtube vids at 720p and even 1080p (Big Buck Bunny for instance) play just fine. Methinks that Flash is optimized to the Tegra 2 chip whilst the inbuilt TF player (and all the other players) are not. Moboplayer, Vplayer etc are all a bit crap at it. There is one player called LittlePlayer which gives the option of hardware playback but it is no better than the inbuilt player as it does not decode AC3/DTS and it too judders when AAC audio is played.
Anyone got a clue why this is the case? I was wondering if it was a UK specific issue (would not put it past Asus to make it PAL centric) but then why would it play a 23.976FPS 720p x264 in MKV perfectly (sans audio obviously)?
Yeah I have a 720p mkv and it plays a little off with the sound but I play a higher quality move still at 720p and the sound is like a second off. And the 1080p vids I have don't play at all. What app do you use to play your videos?
Sent from my Transformer TF101 using XDA Premium App
you must be doing something wrong with the muxing or the avc stream you ended up with is not extracted properly.
I encode movies with x264 (commandline), encode the audio with neroaacen(lc, cbr, 128kbit) and mux them with mp4box. The file plays perfectly with the built-in player, meridian or rockplayer in hardware decoding mode.
Most mkv TV series I can extract th evideo stream from and use it, but not all. Some use too many reference frames while encoding and the TF can't handle it.
X264 profile high, level 4.1, preset veryfast or medium. No other options except quality level ((crf 20 or 21 I use mostly).
I've tried MKVToolnix for straight muxing. A simple MKV to MP4 prog without reencoding called mkvavi2mp4. Handbrake (Used settings suggested on this forum). I've also tried some test clips from various sites. All of them judder when audio is being decoded. I am not talking about HUGE judder. I am talking about very small judder. The video is not 100% fluid. Some may not even notice it. I do because I am always messing with progs like ReClock and MadVR in order to get perfect 24p playback to an HDTV. I am also susceptible to phosphor lag, any audio sync issues and other annoyances. I am Mr Super Anal when it comes to perfect playback and have color calibrated all my displays with a colorimeter
But I digress.
If I play Big Buck Bunny 1080p in Youtube or in the default browser it plays fluid (well enough not to be annoying). Now if I rip that same Youtube clip down to my hard disk. Copy it to the TF and play it in ANY player (Moboplayer - with or without codecs packs, Rockplayer, Vplayer, Littleplayer or the inbuilt player) it will not play it without stuttering. What the hell is that all about? Flash player is better at video playback on the TF than Honeycombs implementation? Quite.
I wish I could figure out a way to load the MP4 files in Flash through the browser. I tried file://path to MP4 and it did not work.
If anyone knows a way to do that I would be interested. Maybe I should setup a web server on my PC and stream everything in Flash
P.S. If you wish I can provide you with two sample MKV's. One with audio the other without and you can directly compare the two and post your results. I see small juddering on the clip with audio muxed in every time.
The Youtube app is not using Flash. If it was, Youtube wouldn't play on the iPhone or iPad, and it most certainly wouldn't have played on Android devices before Android 2.2. If you want to see true Flash performance so far, load up Hulu and see if you can get a 480p stream to play acceptably. Edit: Since you mention the UK though, I probably shouldn't assume you're in the US. If that's the case, just load up any Flash-based video player besides Youtube. Sometimes it helps to set your user agent to Desktop, too.
The Youtube app is actually using HTML5, with videos encoded in H.264/MPEG-4 AVC and stereo AAC. The maximum bitrates supported are 5 Mbit/s and 152 kbps, respectively. You need to bear in mind too that by playing videos through the browser, the servers will recognize the device you're playing from and compress and optimize the stream accordingly. A full 1080p video at 5 Mbit/s would take forever to buffer on a tablet, so it's highly unlikely that you're getting the full quality over the network stream. Locally-stored videos, however, are free to be downloaded and played in their maximum quality, so it's understandable that you may see some stutter on large files.
deadman3000 said:
I've tried MKVToolnix for straight muxing. A simple MKV to MP4 prog without reencoding called mkvavi2mp4. Handbrake (Used settings suggested on this forum). I've also tried some test clips from various sites. All of them judder when audio is being decoded. I am not talking about HUGE judder. I am talking about very small judder. The video is not 100% fluid. Some may not even notice it. I do because I am always messing with progs like ReClock and MadVR in order to get perfect 24p playback to an HDTV. I am also susceptible to phosphor lag, any audio sync issues and other annoyances. I am Mr Super Anal when it comes to perfect playback and have color calibrated all my displays with a colorimeter
But I digress.
If I play Big Buck Bunny 1080p in Youtube or in the default browser it plays fluid (well enough not to be annoying). Now if I rip that same Youtube clip down to my hard disk. Copy it to the TF and play it in ANY player (Moboplayer - with or without codecs packs, Rockplayer, Vplayer, Littleplayer or the inbuilt player) it will not play it without stuttering. What the hell is that all about? Flash player is better at video playback on the TF than Honeycombs implementation? Quite.
I wish I could figure out a way to load the MP4 files in Flash through the browser. I tried file://path to MP4 and it did not work.
If anyone knows a way to do that I would be interested. Maybe I should setup a web server on my PC and stream everything in Flash
P.S. If you wish I can provide you with two sample MKV's. One with audio the other without and you can directly compare the two and post your results. I see small juddering on the clip with audio muxed in every time.
Click to expand...
Click to collapse
Shoot them over
http://www.mediafire.com/?gp3bumw7qy9mppm
Check the panning of each. One has AAC audio the other not. Use the default inbuilt video player of the TF (Should offer if you click on the files if you have other players installed). The one without audio plays perfectly smooth on my TF. The one with audio has slight juddering.
deadman3000 said:
If I play Big Buck Bunny 1080p in Youtube or in the default browser it plays fluid (well enough not to be annoying).
Click to expand...
Click to collapse
Just to clarify: You are talking about viewing youtube via the default _web_ browser, setting your user agent such that you get the desktop site and using the flash plugin to play the video? Rather then using the mobile youtube web site or using the built in youtube app?
FYI of your two clips the one without audio plays smoothly in the _default_ player and the one with audio chokes with "This video cannot be played" (This is assuming you tack ".mp4" onto the file names to fool the default media player into trying to play it)
Interesting... I just re-encoded the audio _only_ ("-vcodec copy -acodec libmp3lame" in ffmpeg) and that plays smoothly.
Now mp3 audio isn't part of the mp4 container spec so you'll only get away with it in an mkv container (its flexibility is one of the things that makes matroska difficult to parse)
Ah... the video is High profile at 3.8Mbps that pretty much on the limit of what the tegra2 can do at the moment (I'd say it over it actually) so I'd say that the addition of a complex (relative to mp3) audio track is just too much.
I bet if you re-encoded that video to baseline at the same bitrate and copied the audio stream it would play fine, its just at the max computation threshold.
sub'd... I want to see what you guys are doing, I'd really like to play at least 720p peacefully.
I've tried reencoding using Handbrake and get similar results. Jerky playback with audio. Smooth without. It's like small juddering every quarter second or so. Ignore the web playback that's already been explained that it's HTML5 and is not sending me the full 1080p stream anyhow.
In fact. If someone can send me a 720p video clip with audio that they say plays 100% smooth on their TF I could see if it's not 100% smooth here. If not (as I suspect it won't be) then it's either my TF has issues. Your eyesight is not picking it up or I am going nuts
deadman3000 said:
I've tried reencoding using Handbrake and get similar results. Jerky playback with audio. Smooth without. It's like small juddering every quarter second or so. Ignore the web playback that's already been explained that it's HTML5 and is not sending me the full 1080p stream anyhow.
In fact. If someone can send me a 720p video clip with audio that they say plays 100% smooth on their TF I could see if it's not 100% smooth here. If not (as I suspect it won't be) then it's either my TF has issues. Your eyesight is not picking it up or I am going nuts
Click to expand...
Click to collapse
try this: http://forum.xda-developers.com/showthread.php?t=1060825
I am using the same profile settings in handbrake (high profile) and ALL my videos are really smooth! and YES...I did have judder/stutter before. download the sample files and you can test it on your TF.
the ONLY downside is that handbrake takes a while to encode but its worth it!
hope this helps.
..........
While I agree that, officially, Honeycomb doesn't support the mkv container. It must be able to parse it as it does support WebM and that uses the matroska container.
http://dl.dropbox.com/u/6553908/with_audio_mp3.mkv
This is the same video stream but with the audio re-encoded to mp3, plays nicely for me in the default video player it I tack ".mp4" on the end to fool the player into trying to play it.
I don't stream but everything e.mote said about hinting is spot on, also you may want to look at interleaving (a feature of the muxing that MP4Box can do) is you want to stream.
earlyberd said:
A full 1080p video at 5 Mbit/s would take forever to buffer on a tablet, so it's highly unlikely that you're getting the full quality over the network stream.
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Click to collapse
Way too generalized. I have a Playbook and it plays 1080p Youtube in the browser flawlessly.
I played The Cape clip from the example Handbrake settings thread. The clip plays with micro judder like every other clip with sound. I am now using a Prime 1.4 rooted not the stock firmware and it still does it. It is like frame drop every half or quarter second. If you have ever seen NTSC 23.976FPS played back on a PAL 50Hz CRT TV you will know what it looks like. It is very obvious on pans.
Surely I cannot be the ONLY person who can see this??? Are your eyes really that bad?
EDIT: Tried the MP3 version you provided. Still there. You can count the judder. Tick tick tick tick... every quarter second.
EDIT2: I guess the only way to demonstrate this to you guys is by way of a video of it along with some audio prompting from me to point it out to you (excuse the d(t)icks). You will notice that the audio drops out for some reason during playback but when it does the video plays buttery smooth. No idea why the audio drops out. I was playing back the MP3 muxed version from the link above using Moboplayer but this problem - the juddering - occurs with any player I have tried. The juddering happens on every single video I have tested it on when it is decoding audio.
http://www.youtube.com/watch?v=oXfdQP8BtEA
I will restate however. Yotube playback looks much smoother than playing a file from the inbuilt flash memory or SD cards.
I am having the same problem as you and I see the judder on these clips as well. I posted my issues in the encoding guide thread:
http://forum.xda-developers.com/showthread.php?t=1060825&page=9
It has nothing to do with the overall bitrate rate as many of my samples are <2,000 kbps, and just like you, if I remove the AAC audio, video is silky smooth. I assume it's just a software issue that should be able to be resolved, but I guess we'll see...
e.mote said:
BTW, if you recoded the clip, then I suggest using better settings. The settings used are excessive. When facing a device with marginal playback, there is less tolerance for bad encodes. If you're anal about playback, then you should be equally anal about your encode settings.
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Thanks for that. But since your video judders just like every other clip that means diddly squat. I don't see why I should have to reencode every video I have in order for it to playback on the TF either. It should be able to handle 720p at least. It does play it but only plays it smoothly with no audio playback whatsoever.
bartleyg82 said:
I am having the same problem as you and I see the judder on these clips as well. I posted my issues in the encoding guide thread:
http://forum.xda-developers.com/showthread.php?t=1060825&page=9
It has nothing to do with the overall bitrate rate as many of my samples are <2,000 kbps, and just like you, if I remove the AAC audio, video is silky smooth. I assume it's just a software issue that should be able to be resolved, but I guess we'll see...
Click to expand...
Click to collapse
Phew! Thanks for chimeing in! I am glad it's not just me. Do you live in the UK perchance? If not that would rule out any UK specific reasons.
Nope, I'm in the US. My TF is also running Prime 1.4. I've tried the "stock" kernel and the OC kernel and the problem is the same with both. I didn't think to test video before rooting and installing Prime, so I can't vouch for whether or not it happens on completely stock HC 3.1
deadman3000 said:
http://www.youtube.com/watch?v=oXfdQP8BtEA
.
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How... what...
Are you serious? I see literally no issue. Either my eyes or your camera, one of the two can't pick up this judder. And I did notice the compression in the better encode offered here (text, grappling hooks, lasers, pretty much anything like that. Not a bad result, but clearly visible)
Sent from my GT-P1000 using Tapatalk
I tried using handbrake to convert some standard definition video. I used the default H264 main profile settings. The video plays smoothly on any PC including a lowly netbook. When I play it on the Transformer it is very jerky almost as if every couple of seconds a frame is skipped. This happens on the video gallery app as well as Mobo. Are there any recommendations on compression settings or apps? By comparison, Youtube HD video plays flawlessly.
Thanks.
Using Anamorphic: strict and a constant quality of RF:22 I have been able to minimize the frame skipping of 1280x720 videos but not completely eliminate.
Thanks.
Isn't strange that the Transformer is having any difficulty at all? I am seeing the frame skipping with SD video (720 x 480). I am wondering if the Transformer just does a really poor job with H264 or if there some other way to encode video such that there is absolutely no issue with 480p or 720p video.
ryan stewart said:
Using Anamorphic: strict and a constant quality of RF:22 I have been able to minimize the frame skipping of 1280x720 videos but not completely eliminate.
Click to expand...
Click to collapse
I just checked what I was using and it was the same. Those are the default settings except for the RF22. I am using the default RF20 but considering I am only trying to encode 480p it makes no sense that the video should be choppy at all.
Setting Handbrake to Universal, then setting the encode to a constant 1Mb or 1.5Mb, seems to help, but its not perfect. The most important thing seems to be to downmix the audio from DD5.1 or whatever to plain old 2-channel AAC stereo or similar.
Rockplayer seems to be the best player I have tried so far. Mobo is OK.
Video rips for our Tranny's
Having some problems with this too..
Killing me as my Evo runs smooth video..
little disappointed I have to do so much work finding a way to play video's..
I will report back with my findings as I am playing with a few different players at the moment..
I too would like to just setup up a video rip system for the transformer that works without too many hassles..
dgcruzing said:
Having some problems with this too..
Killing me as my Evo runs smooth video..
little disappointed I have to do so much work finding a way to play video's..
I will report back with my findings as I am playing with a few different players at the moment..
I too would like to just setup up a video rip system for the transformer that works with too many hassles..
Click to expand...
Click to collapse
It'll be interesting to see what you come up with. I've been using handbrake with both main and high profile, and haven't had any trouble in the stock player, or any other player.
Hi
it is well documented that there is a delay with audio on a bluetooth head set, so I was wondering if anyone knows of a video play that has the ability to change the sync on the video/audio, so we can try and compensate the best we can. Back in the day XBOX media player had this ability, you could change the audio sync within a menu, so you could make it play the video slightly later to make up for the audio delay on the head set
Thanks
I had a lot of audio sync issues with or without bluetooth but since I purchased Dice Player I've had no issues with sync at all and as a plus it handles 720p mkv's quite well. I believe they have a trial so give it a shot.
Hello
I have a strange problem.
Yesterday I recorded a video(in 720P mode) with HTC sensation, came home, and played it normally on my samsung 40LEC650 HD TV over dnla(allshare), wirelles over phone.
Then I recorded some more videos (in all posiblle resolutions and sizes), tried to play them on tv, and error occurs - video codec not supported.
Then I tried again playing the first video, and it plays normally, just every other doesnt.
All videos offcourse in 3gp format.
What happened?? And what can I do to be able to play all videos?
Bor
I have the same issue. Samsung plasma tv. Video codec not supported on all but a couple of videos. Strange!
Sent from my HTC Sensation Z710e using xda premium
dnla problem
I think I ve found out what the problem is. Transfer your videos on to computer and check properties od each one. Check the bitrate and frames per second. It seems that tv doesn't play files with low bitrate or fps.
I ve recorded some videos, and those with bad sunlight (light from surroundings) have lower bitrate and won't play.
I think that's it.
Check YouTube user jemecb Video1- this one plays
Video2 (bad light) - my tv won't play
If anyone knows how to get past this please help
Greeting
There is a cameramod that, while it isn't widely agreed upon that it improves the quality of the image, does increase the bitrate quite a bit in the videos.
So if it's bitrate you need, then try the modded camera from the sensation development forum.
Ok, I've been struggling with this and doing all sorts of research, but I can't seem to piece together a definitive answer. This is what I know (or think I know anyhow)
1) H264 will play just fine from more or less any video player as long as you have the decode mode set right. this seems to be why so many people swear to their particular player (and I've tried so many, moboplayer, dice, etc etc.)
2) H364 is just pure crap because Tegra2 just can't handle it. Something with proprietary codecs or some such.
Now, experimenting with different HD files over the time I've owned my TF, some play and some don't. I've heard others claim otherwise. If anybody can guarantee they can play ANY , really ANY HD mkv file (H364 without re-encoding included) I'd like to know what ROM/app you're using (and I'm sure a lot of others would too). I'm sick of having to pick out/convert my movies all the time.
I'd really like to put this thing to rest.
I hear ya I dont want to re-encode my library either but becuase I cant stand not knowing I have been doing some testing to see what the problem is with not being able to play all files. I have discovered that that the Transformer does not like 5.1 channel AAC audio. I can encode any video to MP4 and it plays great when I set the audio to stereo but when I try with 5.1 AAC MP4 files it no worky. 5.1 AC3 seems to be ok. I too have tried many players from the market and get different results with each one using the 5.1 setting (such as stuttering or lagging or I think it was BS player would only play the rear channel audio) but setting my encoding output to stereo they all play fine. I was on the Google Android Developers site and it stated stereo only was supported for honeycomb so maybe the ICS upgrade will fix this issue? In the meantime I plan on continuing testing different bit rates and audio settings to try and get to the bottom of this. Sorry in advance if this did not help you.
MX player- plays anything i throw at it. make sure you get the Arm7 codec pack too.
bob dylan said:
MX player- plays anything i throw at it. make sure you get the Arm7 codec pack too.
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Click to collapse
I like very much the MX player and it is true it plays mkr videos fine but I do not have sound... I have the ARMv7 codec pack (only this one) do you get sound?
Instead, to play and hear mkv I use DicePlayer Ad. with Dice player plugin for tegra2.
(I am unrooted)
Use software for audio (but hw for video)
Christian Troy said:
Use software for audio (but hw for video)
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Click to collapse
The problem with this is that most players out there only let you use one decoding mode for both video AND audio. what player lets you do what you're saying?
wehweh said:
The problem with this is that most players out there only let you use one decoding mode for both video AND audio. what player lets you do what you're saying?
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Mx video with the codec pack as said previously.
I'll be sure to try it once I get home.
MX player will play the movies just fine but the issue is with the audio. The Transformer has a problem playing audio encoded with 5.1 & 6.1.
Christian Troy said:
Use software for audio (but hw for video)
Click to expand...
Click to collapse
It worked great! thanks a lot!!