H264 Stutter problems

Um, I posted this in the wrong (Mac) forum, so forgive the cross post.
I'm trying to figure this out and hope someone here can save me hours of experimentation.
I've noticed that, in particular, high quality videos (640x480) at 4:3 aspect ratio using H264, 29.97fps and a bit rate of 1700 or so will "stutter" when I play them back either using the computer or Apple TV. It's not horrible, but it's a definite difference from the smooth playback I can get with widescreen videos.
Does anyone have a clue as to what is happening? Right now I'm experimenting with higher datarates (2200) and after that I'll go to the opposite extreme, but perhaps there are some other settings I'm missing. Other than the stuttering the overall quality of image and sound is superb, but I feel like there must be a simple thing I'm overlooking here.

As others have said you really should keep the original in case you need to re-encode. Unfortunately without the original you don't even know if it might be the original that's stuttering, though frame rate change would crtainly cause issues.
The stuttering might be AppleTv (especially if Visualhub 'Go Nuts' uses parameters that AppleTV struggles with - download MediaInfo and see if the file has CABAC set, AppleTV doesn't support this). Unfortunately there are countless possible encoding options for h264, and some will make AppleTV choke because they are too processor intensive.
I'd also add that different encoders can be really fickle. I generally quite like Handbrake for simplicity, but I tried to convert a PVR recording using it and there were audio glitches all over the place - tried MPEGStreamclip on same source and no issues at all. There are far too many factors for use mere mortals to consider.

Similar Messages

H264 ENCODING PROBLEMS PLEASE SOMEONE REPLY

I HAVE H264 ENCODING PROBLEMS TO ALL APLICATIONS
FC PRO IMOVIE HD EVEN QT7.
IT GOES VERY SLOW!!!!! FOR ENCODING AND CRASHES ALL THE TIME.
FOR THE FIRST MIN GOES VERY FAST AND THEN DRAMATIC SLOW ANDIN HALF CRASHES -BY FOR PLAYING H264 GOES FAST FULL VIDEO CATCHES 30 FPS.
I WANT TO KNOW WHY???????????????
AND IF THERE IS ANOTHER SIMILAR FORMAT FOR EXPORTING WITHOUT LOSING
VIDEO QUALITY

Before we go any farther, please turn of you CAPS. It makes the post very difficult to read and is considered shouting in the internet world.
Thank you.
Now,
Usually crashes in encoding can be traced back to:
1. corrupted media files
2. improper naming conventions
3. disk storage issues.
We need more information.
What format is the original material?
What Version of Final Cut Pro?
What Verison of OSX?
How many disks in the computer and how much space on the media drive? (you are keeping your media on a different drive than your OS, aren't you?)
report back,
x

A Stutter Problem Resolved in iMovie 4

Well, for me. By highlighting the video clips I wanted to play, I noticed that there was no stutter problem. However, don't highlight too many. Don't highlight your entire movie. iM4 can't handle it. You have to take it in chunks. Reduce Zoom to get as much as you can on your Timeline, while being able to see (of course) what you have. Select (Command-Click) the clips you want to see, along with the audio clips you want to hear, for that screen, only. If you're only interested in an audio clip, select the video clip(s) above it. Do not play a selected audio clip. Play the selected video clip that covers it.
There should be no stutter problem when you play that selected sequence. I was selecting an audio clip to see how it sounded, and it was garbled, etc. Stuttering was rampant. But, when I selected the video clip (or clips) instead, the playhead proceeded smoothly, no garbled audio. You just have to do it in chunks. You will never be able to view your movie from beginning to end in one pass in iMovie4. At least, in my experience.

I tried Workaround 3 in that thread, after Workaround 1 didn't clear up the problem. However, I now quit all other programs when I work with my project to remove that possibility. I think it was you who suggested that & I think it does help.
Due to my own ineptness, I really fouled up my project, following Workaround 3. I guess it's too advanced for me, and I have no doubt it works for others. As to the other Workarounds, esp. Workaround 2, again, they look too advanced for me. (That shows you my level of expertise.)
Highlighting the video clips, either singly or in groups, reduced the stutter to barely perceptible. At least, for me. Thanks for your attention.

Help! Stutter problems with 10.6.8 MacPro early 2008

I'm running 10.6.8 on an early 2008 Mac Pro.
My problem is that recently everything has gone "stuttery" :
• Running a video through Youtube gives a 0.5sec video freeze every 30sec,
• Opening up MacRumors webpages displays the first half of a forum page, then it hangs for 1-2 sec before displaying the rest.
• Scrolling through Finder windows isn't smooth
• Using time machine takes longer than 1 hour to perform even small hourly backups so is in constant use (problem exists even with TM turned off)
* Checking Activity monitor I don't have any rogue processes running.
• Bootdisk still has 275Gb free.
* Logging in to the computer as a new account doesn't give these problems so I'm ruling out a graphics card/hardware/HDD problem.
When I got this computer, new, 4 years ago I used migration assistant to grab the contents off my previous Mac. As a result I have shed loads of stuff on here but the problem only started in the last month. I haven't installed anything I can think of in that time. Due to the above criteria I'm convinced it's something running in the background that's corrupt (Java?) rather than a hardware issue, but with so many files on my system I don't know where to start (and I don't want to erase stuff randomly until it stops!)
Can anyone suggest a diagnostic procedure/app to help track down what's causing this really irritating stutter on my Mac?
Thanks

OK, two things to try:
Do you have Javascript activated (not Java)?
Is your version of Flash Player up to date?
You can check here: http://www.adobe.com/products/flash/about/ to see which version you should install for your Mac and OS. Version 11.4.402.265 is for Snow Leopard onwards.
You should first uninstall any previous version of Flash Player, using the uninstaller from here (make sure you use the correct one!):
http://kb2.adobe.com/cps/909/cpsid_90906.html
and also that you follow the instructions closely, such as closing ALL applications first before installing. You must also carry out a permission repair after installing anything from Adobe.

H264 Export Problems

I'm trying to export a slideshow from ProShow Producer to my Apple TV. When I export from Producer using the standard "Export for Device - Apple TV" then the audio (music & sounds) don't synch correctly with the slides. Depending on the length of the show, the audio ends early.
With experimentation, I discovered that the sync problem does not exist if I export using h264. Using the documented Apple settings, I'm using the Create Output -> Create Video feature in producer. I have the video export settings at H.264 with 1280 x 720 @ 24 frames a second at Normal Quality. I have the latest updates for both ProShow and AppleTV.
When I copy the resulting file to iTunes I receive the message "<FILENAME> was not copied to the Apple TV <APPLETVNAME> because it cannot be played on this Apple TV." When I use a "Quality" on the h264 at "70" the file size of the output is 415MB.
Now here's the kicker, when I change the "Quality" setting to "50", the file will transfer to the Apple TV. But the problem here is that the quality is so poor it won't work for my application. Apple TV will also accept a high quality version as long as it's short (like 20 seconds).
Given this information, the transfer problem appears to be a file size issue. I've done searches on the forum and some folks say it won't take files larger than 2GB, but these files are 1/4 that size. If you have any suggestions, I'd really appreciate it!

>What version of Premiere Pro? I.e., have you installed the recent updates?
5.0.3
>What operating system?
OSX 10.6.6
>What kind(s) of source footage?
Canon 7D HDSLR MPEG Movie. 1920X1080 Pixel Depth 32 Pixel Aspect Ratio 1.0. Still images Jpeg Files. Image Size 2808x1872. Pixel Depth 24 Pixel Aspect Ratio 1.0
>What is the exact text of the error message?
Error Compiling Video Unknown Error
>Has this ever worked before?
It sometimes works when exporting to the default Quicktime format and preset but with nothing else.
>What other software are you running?
At the time of export only Bridge and nothing else. As far as what other software is on the computer, I have the standard stuff on a Mac with iLife 11, Quicktime, iTunes, etc. I have Logic Studio Installed, Toast, ElGato Video Capture, Plural Eyes for Premiere and Microsoft Office for Mac.
>Do you have any third-party effects or codecs installed?
Not that I am aware of
>Tell us about your computer hardware.
Mac Pro 2xQuad-Core (8 core) Intel Xeon
2.4Ghz
16GB RAM
NVIDIA Quadro 4000 for Mac Graphics Card
OS on 600GB WD Raptor Drive 10,000 rpm
VIdeo and Audio Assets on three WD 1TB Hard Drives 7200 rpm set at RAID 5

System-wide video stutter problem

When I start a video chat with anyone it works well until some point when the computer begins to stutter as well as the video and audio from the video chat to the point that the computer becomes almost unusable. Once I close the video chat the computer comes back to normal. If I don't close the chat window then sometime later the green light on the iSight stops glowing and my side of the video on the chat gets stuck. At this point I can still see and listen to the other party and they can listen to me.
Other times this "bug" or whatever it may be called happens earlier in during the chat by having the video chat at the sime time as watching a video on Safari (youtube or any flash content). When this happens, both the iChat video and the Safari video start to stutter.
This has also happened while playing WoW.
I have tried reinstalling OS X 10.5 and it just comes back to haunt me.
Thanks for your help

I just reinstalled OS X 10.5 and still have the same problem. I would say it gets worse and worse. Last thing that happened was I was playing World of Warcraft and the computer just started to stutter, mouse, video, sound, everything an then it shut down. After reboot i got this error report:
Mon Nov 17 22:06:38 2008
panic(cpu 1 caller 0x0019CCE4): "simple lock deadlock detection: lock=0x5356a0, cpu=1, owning thread=0x8400048"@/SourceCache/xnu/xnu-1228/osfmk/i386/locks_i386.c:317
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2e5fcdd8 : 0x12b0e1 (0x4555b4 0x2e5fce0c 0x133238 0x0)
0x2e5fce28 : 0x19cce4 (0x45cad8 0x5356a0 0x1 0x8400048)
0x2e5fce48 : 0x13393d (0x5356a0 0x340b7000 0x8eabf020 0x109)
0x2e5fce88 : 0x13fd3c (0x340b7000 0x39d78b8 0x1f3a0 0x3bc6bb4)
0x2e5fced8 : 0x199303 (0xa10dc680 0x109 0x39d65d0 0x0)
0x2e5fcf28 : 0x1a6c55 (0x0 0x2e2d75cf 0x0 0x191926)
0x2e5fcf78 : 0x1ae60e (0x45defc60 0x340b7000 0x2e5fcfa8 0x6)
0x2e5fcf98 : 0x4443c7 (0xde 0x45defc60 0x39d65d0 0x1)
0x2e5fcfd8 : 0x19e6de (0x45defc60 0x0 0x0 0x0)
0x45defd08 : 0x2e2d592d (0x4292400 0x14 0xf 0xc)
0x45defd48 : 0x2e2d6e52 (0x3d3f200 0x0 0x1 0x3d3f600)
0x45defd68 : 0x2e2d4360 (0x3d3f200 0x2e2d0740 0x9f3fd20 0x3d3f600)
0x45defda8 : 0x2e2ca312 (0x3d3f600 0x0 0x3d3f600 0x1991a6)
0x45defdf8 : 0x2e2c985d (0x3d3f600 0x45defe6c 0x45defe28 0x8c499620)
0x45defe38 : 0x2e2d3bb9 (0x3d3f600 0x45defe6c 0x45defe88 0x13ff64)
0x45defe98 : 0x2e2bd8b8 (0x3d3f600 0x429b920 0x1 0x45defee0)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.ACPISMCPlatformPlugin(3.0.0d11)@0x2e2d1000->0x2e2dafff
dependency: com.apple.iokit.IOPCIFamily(2.4)@0x2e318000
dependency: com.apple.driver.AppleSMC(2.0.0d5)@0x2e2ba000
dependency: com.apple.driver.IOPlatformPluginFamily(3.0.0d11)@0x2e2c3000
dependency: com.apple.iokit.IOACPIFamily(1.2.0)@0x2e32e000
com.apple.driver.IOPlatformPluginFamily(3.0.0d11)@0x2e2c3000->0x2e2d0fff
com.apple.driver.AppleSMC(2.0.0d5)@0x2e2ba000->0x2e2c2fff
dependency: com.apple.iokit.IOACPIFamily(1.2.0)@0x2e32e000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9A581
Kernel version:
Darwin Kernel Version 9.0.0: Tue Oct 9 21:35:55 PDT 2007; root:xnu-1228~1/RELEASE_I386
System model name: MacBook2,1 (Mac-F4208CA9)
If anyone understands what this means......
Thanks again

Premiere CC h264 rendering problem

Premiere CC is changing aspect ratio of my video, from 4:3 to 109:96, whan rendering in h264. This was not hapening with Premiere CS 5.5.

This solved my problem. But i still don't now why is this happening. I have video that is DV 720:576 PAL pixel aspect 1.0940, when i set same parameters for encoding it changes aspect ration. But when i set pixel ration to square and stretch to fill i get correct result. H264 with correct aspect ratio. It is probably bug with encoder.

Stutter Problem - Some Observations

Ok, this stutter thing is driving me crazy and Apple's lack of response is drving me crazier. Here are some observations I have made while researching this bug.
The stutter I am experiencing only happens between songs using crossfade.
Turning crossfade off creates a long gap between songs. You can tell something is still not working right and needs to be fixed, but the stutter does stop by turning crossfade off.
Only certain songs stutter. I have experimented in Party Shuffle with hundreds of songs and have found certain songs stutter and others do not. This could explain why some folks might think a certain fix has solved the problem and then it "mysteriously" returns hours or days later. The songs that stutter will do so no matter what playlist is used so it is not confined to Party Shuffle.
Shuffle has nothing to do with it because it happens with it turned off.
I have compared everything I can think of between the songs that stutter and those that don't and can't find anything (i.e. format, ID3 Tag, Encoded With, etc.) that corelates.
I can fix the songs that stutter by reducing the end time by 3-5 seconds. Try it for yourself. This leads me to believe it has something to do with the way specific songs end and how iTunes starts the next song.
I am convinced this bug is song specific and has nothing to do with what other application is being used on the computer (once the stutter begins it does lock up other apps until the stutter subsides).
Even songs from the same album ripped the same way don't all stutter. For example, "Last Night" by the Strokes stutters while "Someday" from the same album does not.
I hope this leads to some further discussion. If anyone can figure out just what makes certain songs "different" from the rest might hold a clue to the problem. I apologize if this particular theory about the stutter has been addressed elsewhere on the board. I did a search and could not find anything. Thanks for reading and lets get to the bottom of this mess!
P.S. Maybe a list of songs that stutter might be helpful. Two songs that stutter on my system are "Last Night" by the Strokes and "Home" by Depeche Mode. I have many others but I'll just share two for now. For comparison a song that does not is "Beverly Hills" by Weezer.
P.S.S. Does anyone else find it odd that this problem appeared around the same time Microsoft was set to release their music service?

I don't use cross fade and I still ahve the stutter. The stutter is not consistant, however, since I can listen to a song once and it's fine and then listen to it again but it will skip. The skip is not always in the same spot either.
I moved my library from an external drive to an internal fast HD then reinstalled everything (Quicktime, iTunes) after completely removing both from my HD and registry. Even after the move and the reinstall I stil get some skipping, although not as frequently.
There is still one more problem that has not been completely resolved and that's the distortion that exists. It's a problem that has been around ever since the introduciton of itunes 7 and even though it has been better after the initial release it is still present enough to be annoying.

H264 Gamma Problems, now F4V's are dead

Hi, Now Adobe have killed off F4V's - the only reliable way of making movies with decent colour that I found.
Does anyone know of another codec that will produce great colour in Windows?
Or does anyone know how to correct the old Windows Gamma problem in h264?
Thanks!

Hi, I really thought it was pretty well known? Hmm. Well, so far as I know, it's a Windows/Apple thing. If you use AFX to make h264 movies on a mac it works great, but on Windows it results in a grey washed out qt. If you then played that movie on a mac it would appear fine. Very annoying, it's been like that for years, apparently it's all down to Apple not giving a stuff. Unless it's been fixed in the last 6 months. So f4v's were my best option for showing clients stuff. But if you know anything I don't (very likely) I'm all ears...
Thanks
Oliver

Vlc h264 video problem

Hello,
I have a problem viewing 1080p h264 video on vlc.
Until about two months ago, no problem viewing 1080p video: video was perfect. Now, after, I think, some updates, I can't see 1080p video on vlc, video snaps during about all the time. Running vlc from the line:
[riccardo@arch ~]$ vlc
VLC media player 2.0.4 Twoflower (revision 2.0.3-289-g6e6100a)
[0xa1a108] main libvlc: Esecuzione di vlc con l'interfaccia predefinita. Usa 'cvlc' per utilizzare vlc senza interfaccia.
QGtkStyle was unable to detect the current GTK+ theme.
MKV/Ebml Parser: m_el[mi_level] == NULL
MKV/Ebml Parser: Up cannot escape itself
MKV/Ebml Parser: m_el[mi_level] == NULL
MKV/Ebml Parser: Up cannot escape itself
[0x7f7980c1baf8] dts decoder: DTS channels:6 samplerate:48000 bitrate:768000
Stream with high frequencies VQ coding
[h264 @ 0x7f7980c2adc0] mmco: unref short failure
[h264 @ 0x7f7980c2adc0] mmco: unref short failure
[h264 @ 0x7f7980c2adc0] mmco: unref short failure
I have 3.6.9-1-ARCH kernel on x86_64 with xf86-video-intel 2.20.15-1 driver.
What is the problem? I try to search on the internet, but nothing help me.
Thank you.
Riccardo

rexcze wrote:After pacman -Syu it will be replaced by version from testing so I need it to be "underlined" in the "extra" version
Actually, I think that for pacman, the versions from [testing] are a "low priority". What I mean by that is that it won't use a version from the testing repository unless specifically told so (pacman -Sy testing/foo)... So doing a pacman -Syu won't replace the version from extra with the one from testing

Video record stutter problem!

I have a n95 8gb (v20.0.16) an when i start recordin it starts to stutter after about 10 seconds.
I'm not the only one to have this problem many more people do!
I read somewere that somebody posted on this forum about this problem and the post was deleted.
plz don't do so
i tried reformating,defragmenting,and reinstalling firmware and nothing .. the problem persists
ANY advice will be read and used!

hmmm u should update ur phone since the newest fw version for the n95 8gb for now is fw ver 30. Update it and it should solve ur problem. If it doesn't solve your problem, then wait for a certain time. It will recover by itself. Really, believe me. I just don't use the video for a certain time when the red light keep on blinking when i recording. After a certain time, it recover by itself. That was a miracle for me. HAHA. Or there is a temporarily method. Just change the saving video path to ur phone memory and it's all done. You can record video without any problem.

Audio and video stutter problems with .mov

Hi there, guest newbie here…..
I’ve searched high and low for a solution to this problem but with no luck.
Once upon a time I updated itunes to version 7 I think it was, and it caused all my tracks to stutter on playback. I then reverted back to 6.whatever and it solved the problem. I have been enjoying a stutter free life ever since…..until….
I bought a tutorial DVD made up of lots of .mov files, when I tried to play one the video and the audio stuttered.
However, when I fired up itunes, tracks in there played fine.
Maybe it was the dvd?? So I put it in my laptop and it played fine!
OK….. so I updated everything to their latest versions (Jan 09) on the other computer including:
Quicktime
Adobe Flash
Soundcard (RME Multiface)
Graphics card (Geforce FX 5200)
I even tried using different media players to play the .mov files.. but NOTHING WORKED.
I’ve played around with settings on each player i.e. ‘safe mode’ on quicktime, but again nothing worked. In fact this setting auto switches back to what it was when I try to play the file.
Is anyone experiencing the same problems and does anyone have any more solutions to this problem????
Many thanks in advance

Sounds like his cashe is full. Clear his cashe out. You can do that in internet options and depending on the version of IE if that's what he is using you will find a option in there to delete temporary files. Delete everything from there, then restart IE, and he should be good to go.

Stutter problems

just got my atv and having problems with the video, the frames are stuttering and not smooth, this happens with all modes (sync, streaming wifi or ethernet) the only thing i can think its not able to play the video spec
bit rate - 127kbps
Total bit rate - 4600 kbps
dimensions - 1280x688
Thanks for any help

As others have said you really should keep the original in case you need to re-encode. Unfortunately without the original you don't even know if it might be the original that's stuttering, though frame rate change would crtainly cause issues.
The stuttering might be AppleTv (especially if Visualhub 'Go Nuts' uses parameters that AppleTV struggles with - download MediaInfo and see if the file has CABAC set, AppleTV doesn't support this). Unfortunately there are countless possible encoding options for h264, and some will make AppleTV choke because they are too processor intensive.
I'd also add that different encoders can be really fickle. I generally quite like Handbrake for simplicity, but I tried to convert a PVR recording using it and there were audio glitches all over the place - tried MPEGStreamclip on same source and no issues at all. There are far too many factors for use mere mortals to consider.

MSI k8n Neo2 Platinium Stutter Problem

Hi
2 weeks ago I upgrade my system from AMD2500+ to AMD64 3000. And problems started. My first MOBO was k8t NEo2. I gave it back because of stutter. Everybody said that was PSU problem and I changed my PSU to TAGAN 480W and MOBO to MSI k8n Neo2 Platinium.
After a Fresh winXP install, SP2, nforce drivers and nvidia drivers. I test the system with Flight Simulator 9 and stutter is there
I tried lots of things. Uninstalled all pci cards. checked irqs, used pci latency tool no success.
Any ideas?

Quote from: buakbay on 26-March-05, 23:40:27
Hi
2 weeks ago I upgrade my system from AMD2500+ to AMD64 3000. And problems started. My first MOBO was k8t NEo2. I gave it back because of stutter. Everybody said that was PSU problem and I changed my PSU to TAGAN 480W and MOBO to MSI k8n Neo2 Platinium.
After a Fresh winXP install, SP2, nforce drivers and nvidia drivers. I test the system with Flight Simulator 9 and stutter is there
I tried lots of things. Uninstalled all pci cards. checked irqs, used pci latency tool no success.
Any ideas?
turn off any virus checker for a start
Theres a heck of alot of things that can cause stuttering..
turn off agp fast writes, turn off cool and quiet, turn off dynamic overclocking, ensure up to date gfx and platform drivers, ensure you are not overheating, what temps have you got on cpu and gfx?
do not run corecenter or any other background app that might have bugs in it, check the cpu usage of all running tasks, something might be spiking and causing stutter.
what drivers are you running with (list all)
is it only when playing networked or standalone too? what directx have you got installed? have you run memtest86 and checked your memory? are you overclocking at all? are you overclocking too much?
what are your benchmark scores for 3dmark 03? do they compare to others with similar spec?

H264 playback problem

I just installed QT7 in order to view some videos encoded in H264. However, the video appears horrible (very Blocky and with a whitish... like looking through fog).
I downloaded VLC and it plays the video perfectly without a hitch. Do I have a setting wrong in QT7? Why would VLC be able to play the movie no problem but quicktime have so much problem.
BTW, I have experienced this on 2 different computers, both running XP SP2.
The video file plays just fine on an IPOD.

I usually give clients a copy of the latest VLC player - http://www.videolan.org - so they can see whatever I send them.
I find though that many still don't bother to install it, despite specific instructions. Or - in the instances I have emailed them a link to the file - they click it and then get all confused (ffs!) when their browser asks them whether they shoud save/run/etc the .exe.
Generally it's better to give it to them on CD, since IE is now so fked up that it blocks most links anyway, and people are very clueless about their own "pop up blocker" bars etc.
Worse case sit with them and install it for them.

H264 Stutter problems

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