IPhone video playback with OpenGL?

Hi all,
I need to decode video to an OpenGL texture - or at least draw it to the screen and then draw OpenGL stuff on top of it. Does anyone know if this can be done? The provided movie player API takes over the screen for the duration of playback, and I can't find a way to change this.
I'm open to alternative decoding ideas as well. I tried the Ogg Theora reference implementation, but it was (predictably) unusably slow on the iPhone. Anyone know any other free decoders I might try?
Thanks guys!

Handbrake is great. Instant handbrake is nice too because its quick and works. I'm sure the disconnect between video and sound is an encoding thing (when you ripped the DVD) rather than the iPhone. And, if you are doing protected DVD's (we won't tell), they can have encryption issues.

Similar Messages

Problem with video playback with iTunes

Several problems :
Problem with video playback with iTunes -
Since about a week, When I launch a video, it takes a long time to get started, then only the sound starts with no pictures - If I press pause then play the video is played normally. Did anyone face or heard about same kind of issue .
Problem with permission disk errors
After re-installing White Tiger and After I installed the last OSX 10.6.5 update
I found the following problem
Group differs on "Applications / Utilities / AirPort Utility.app / Contents / Resources / wanArrow.png", should be 0 instead of 80.
Last but not least :
My computer seems slow - I have 60gig free on My hard drive and I test my hard drive and everything seems all good .

What was the fix for this? Everything has sucked for my itunes video playback since the last major revision release.

Choppy iPhone video playback after upgrading to 10.5 + QuickTime 7.6.9

Hi,
I recently upgraded from 10.4 to 10.5 on my Powerbook G4. I used the "Archive and Install" option. After updating all software to the latest (10.5.8 OSX + 7.6.9 QuickTime), I noticed that the playback of the videos shot with my iPhone 3GS becomes extremely choppy (jumps combined with slow-mo). Based on the what's in "Previous System", I was using QT 7.6.4 with OS 10.4, which didn't have this playback issue.
I found several posts related to similar issues in the forum, and tried the following suggestions without success:
(1) removing all third party plug-ins from /Library/QuickTime;
(2) repair permissions with Disk Utility;
(3) installing Perian;
None of the above made a difference. Just for the heck of it, I tried "su" in Terminal and moved "QuickTimeH264.component" to "QuickTimeH264.component.bkp". Surprisingly this made the playback a lot better (all the iPhone clips are H264+ACC). So I'm guessing somehow the QT H264 component is not working properly for me, but what is QT using instead to play those videos after I renamed the component? It shouldn't be any of the third-party plug-ins since I tried removing all the third-party stuff at the same time, and the videos still played fine. I'd like to get to the bottom of this as I'm a little uneasy about re-naming the H264 component.
I hope someone more QT savvy can diagnose the problem based on what I've tried and make new suggestions. Granted my machine is a bit long in the tooth but it's still decently powered (1.67 GHz, 1.5 GB RAM, 320GB HDD) and the videos played fine before the "upgrade".
Is it worth doing a clean re-install of 10.5 as opposed to the "archive and install"? It's a pain obviously to have to re-install all the apps but I'm willing to try it if it could reasonably make a difference.
Thanks in advance!

The problem is that you moved your Mail application to a sub-folder in your Applications folder, and you are running an older copy of Mail.
From your crash report it shows your path is to a different folder then the default folder:
Path: /Applications/Mail Apps/Mail.app/Contents/MacOS/Mail
It also shows that you are not running the correct version of Mail (should be version 3.5 (930.3):
Version: 3.5 (929.4)
Check out this article:
http://support.apple.com/kb/TS2486
The short of it is that you may have two copies of Mail on your system. When 10.5.6 installed, it may not have updated Mail correctly. Look to see if you have another copy of Mail in your Applications folder, and if so run it and check it's version from the 'About Mail' menu option, it should be 3.5 (930.0). My recommendation is to remove any copy of mail that is not in /Applications (if there is no version of Mail in Applications, move the one you have in Mail Apps back) and run the Mail Update referenced in the article above.

Portege R700 - Issues with video playback with resolution over 360p

I've got this video playback issue from day one. While for instance on YouTube, videos with resolution above 360p freeze up while the sound is ok.
I've contacted Toshiba through which I got a linke to the latest bios and drivers. After the upgrade issue persists. I sometimes get a green screen while watching flash video as well. I'm guessing this is a graphic card hardware issue. Any ideas? Thanks! (Portege R700 19L, win7 pro 64)

Hello
Have you tried watching videos in high performance mode and tested different Internet browsers?

Screen tearing on video playback with mplayer and radeon driver

I use a old Radeon 9200 video card with the open source radeon driver, and after I configured the radeon driver to fix the screen tearing, it still has screen tearing
this is the xorg.conf:
Section "Device"
Identifier "My Graphics Card"
Driver "radeon"
Option "DRI" "on"
Option "DynamicPM" "on"
Option "ClockGating" "on"
Option "AccelMethod" "EXA"
Option "EXAVSync" "on"
Option "DMAForXv" "on"
Option "ScalerWidth" "2048"
Option "EnablePageFlip" "on"
Option "RenderAccel" "on"
Option "AccelDFS" "on"
Option "AGPMode" "4"
Option "ColorTiling" "on"
Option "AGPFastWrite" "yes"
BusID "PCI:1:0:0"
EndSection
and this is the ~/.mplayer/conf:
vo=xv
ao=alsa
mixer-channel=Master
nolirc=yes
nojoystick=yes
font=Arial
subcp=latin2
subpos=95
and I know that this video card is capable of playback without screen tearing, because if I boot windows xp and open any video file with VLC, there is no screen tearing
Last edited by Chrys349 (2011-10-31 03:03:06)

I have a Radeon 9250. Here is my setup:
Section "Device"
Identifier "Radeon 9250"
Driver "radeon"
Option "EXAVSync" "false"
Option "ColorTiling" "true"
Option "EXAPixmaps" "true"
Option "MigrationHeuristic" "greedy"
Option "SwapBuffersWait" "true"
Option "TripleBuffer" "true"
Option "EnablePageFlip" "true"
Option "AGPMode" "8"
Option "AGPFastWrite" "false"
Option "BusType" "AGP"
Option "DisplayPriority" "AUTO"
Option "IgnoreEDID" "false"
Option "RenderAccel" "true"
Option "AccelMethod" "EXA"
Option "AccelDFS" "true"
Option "FBTexPercent" "0"
Option "DMSForXv" "true"
Option "SubPixelOrder" "NONE"
Option "VGAAccess" "false"
Option "DRI" "true"
Option "XV_VSYNC" "true"
Option "XV_CRTC" "auto"
Option "XV_BICUBIC" "false"
EndSection
I'm glad with the video quality, however, I do experience little tearing sometimes, especially in the scenes involving panning.
The XV_VSYNC option is supposed to eliminate tearing (due to the radeon manual), but it is ignored if KMS is enabled. Try disabling KMS if you don't mind some performance reduction. The Radeon driver generally has some annoying bugs and glitches in KMS mode.

[iPhone] Please help with OpenGL ES optimization

Hello!
Haven't asked for help in a while, but this time I am really without ideas.
Basically I am working on this 2D Game which should be released soon, but drawing performance is rather miserable (~25 Fps, playable but not enjoyable).
If there are some optimizations please give me a hint, Im a beginner with OpenGL
Here is my OpenGL Code:
[EAGLContext setCurrentContext:context];
glViewport(0, 0, backingWidth, backingHeight);
glBindFramebufferOES(GLFRAMEBUFFEROES, viewFramebuffer);
glClear(GLCOLOR_BUFFERBIT);
Paddle* paddle = gModel.paddle;
////////////////DRAWING MAID///////////////////
ATTexture2D* maidTex = charImgA[gModel.mascotState];
if (!maidTex) {
//Lazy Loading
UIImage* img = [UIImage imageNamed:[NSString stringWithFormat:@"char-%d.png", gModel.mascotState, nil]];
maidTex = [[ATTexture2D alloc] initWithImage:img];
charImgA[gModel.mascotState] = maidTex;
int msImgWidth = 77;
int msImgHeight = 133;
CGRect maidRect = CGRectMake(paddle.box->center.x - (msImgWidth/2), 480-msImgHeight, msImgWidth, msImgHeight);
[maidTex drawInRect:maidRect];
////////////////DRAWING PADDLE///////////////////
CGRect rect = CGRectMake(paddle.box->getPoint(0).x,paddle.box->getPoint(0).y , paddle.box->extent.x * 2, paddle.box->extent.y * 2);
glPushMatrix();
glTranslatef(paddle.box->center.x, paddle.box->center.y, 0);
glRotatef(paddle.rotateState, 0, 0, 1);
glTranslatef(-paddle.box->center.x, -paddle.box->center.y, 0);
[paddleImg drawInRect:rect];
glPopMatrix();
////////////////DRAWING BLOCKS///////////////////
//We have 4 types of image pools
//Each type of block should take a picture from exactly one of the pools
//Here about 90 blocks loaded
NSArray* blockA = [gModel.blockMan getAllBlocks];
for (Block* block in blockA) {
CGRect rect = CGRectMake(block.box->getPoint(0).x,block.box->getPoint(0).y , block.box->extent.x * 2, block.box->extent.y * 2);
//Map the blocktype to the index of the pool->What pool should be used for this image?
int arrayIndex = blockTypeToImageAMappingA[block.type];
//Get the pool from the array
NSArray* imgPool = [blockImgAA objectAtIndex:arrayIndex];
//Get the array of the blockstates
//Choose one of the pictures from the pool to draw, this stays the same for the lifetime of the block, but is random
NSArray* imgA = [imgPool objectAtIndex:block.randID%[imgPool count]];
//Get the texture according to state of block
int index = MIN([imgA count]-1, block.state);
ATTexture2D* tex = [imgA objectAtIndex:index];
//block.blockImg = [imgA objectAtIndex:index];
//Draw the chosen texture
[tex drawInRect:rect];
////////////////DRAWING BALLS///////////////////
//About 10-20 should be supported
for (int i=0; i<[gModel.specialA count]; i++) {
Ball* ball = [gModel.specialA objectAtIndex:i];
ATTexture2D* tex = specialImgA [ball.specialType];
if (!tex) {
//Lazy Loading
NSString* str = [NSString stringWithFormat:@"special-%d%d.png", ball.specialType/10, ball.specialType%10, nil];
tex = [[ATTexture2D alloc] initWithImage:[UIImage imageNamed:str]];
specialImgA[ball.specialType] = tex;
[tex drawAtPoint:[ball getCenter]];
for (int i=0; i<[gModel.ballA count]; i++) {
Ball* ball = [gModel.ballA objectAtIndex:i];
[ballImg drawAtPoint:[ball getCenter]];
glBindRenderbufferOES(GLRENDERBUFFEROES, viewRenderbuffer);
[context presentRenderbuffer:GLRENDERBUFFEROES];
Comments: ATTexture is basically Apples Texture2D
Message was edited by: Max Ullinger

If rendering is slow, maybe it's because the textures aren't in a hardware-friendly format. CrashLanding's Texture2D class only supports RGBA8888, RGB565, and A8, i.e. no PVRTC textures. Another possibility is that you're rendering with alpha-testing/alpha-blending. The iPhone's GPU is supposed to be a lot faster if you draw as much geometry as you can without alpha-testing or alpha-blending -- it's part of their tile-based deferred rendering (TBDR).
If the CPU is slow, maybe it's all the Objective-C method calls. Each one of those is technically a search through the class hierarchy to find an appropriate method.
That's all I can see.

Slow video playback with 2 sound tracks

Hi,
I've just been playing around with quicktime files with 2 sound tracks with different languages. When I copy these files to the ipod they playback, but in slow motion. Are there any guidelines for making ipod compatible 2 sound track files?
I know there are movies in the itunes store with two sound tracks with different languages and these are supposed to work OK with the ipod nano.
Any experiences? Thanks,
Robintosh

What software are you using to convert the videos to iPod format?
If you are using Quicktime Pro, or iTunes 6 to do the conversion... then that is most likely where your problem lies.
Your source video file is probably muxed.
Neither QT Pro or iTunes has the ability to successfully encode a muxed video file with audio. You'll end up with video and no audio.
http://docs.info.apple.com/article.html?artnum=302588
You'll need to use some other third-party software to do the conversion. There's a handful of software available. Just search the forums and you'll find many titles mentioned.
Try MPEG Streamclip.

Tearing video playback with radeon open source

Hi all, I'm pretty new to Arch. I've got almost everything set up and working nicely, except video playback.
I get a lot of tearing using the open source drivers. It happens both with mPlayer(no matter which output is chosen) and VLC. Happened in Ubuntu and happens in Arch. In Ubuntu the only thing that solved it was enabling Tear Free Desktop from CCC(which enable VSYNC and Tripple Buffering), but I wanna stick to open source drivers in Arch(that's the prefered choice according to the Wiki).
Can I enable VSYNC in these drivers? Please help.
Not sure if it matters, but I'm running GNOME 3.
Thanks!

Maybe you will find something useful here: http://www.x.org/wiki/RadeonFeature/#VSYNC
Or here: http://phoronix.com/forums/showthread.p … s-Showdown
I am not currently using ATI hardware to tell you exactly what's needed. Using a compositor such as Compiz might make the difference.

Choppy Video Playback with new update 7.5.0.20

Well, here we go again. This latest itunes update is not up to snuff. My video playback has hit rock bottom.. And worst of all, my cpu usage is thru the roof. What the heck dude. You know, I talk to my buddies that own MACS, and of course they never have a problem with their freakin itunes. This has happened before, about a year ago. You can check the video reviews on Battlestar Galactica. I uninstalled and reinstalled, and NADA!!! Same ol' crappy playback. This was not an issue with the previous version. I even performed a system maintenace on my laptop just to make sure the CPU vents weren't clogged with dust. I know that Apple would prefer that the whole world owned a freakin MAC; but for Pete's sake, I am paying them to download content!!!!Paying!!!!!!! Give me something I can look forward to. Dread is what I feel everytime they announce one of their cute updates.

Me too. All I get is audio and a green screen when i try to play a video(that i *paid for* in some cases). I asked a question here a year ago and have yet to get an answer to!

Terrible video playback with tablet

does anyone else have terrible video playback? whenever i am playing something from streaming like nbc.com, it is cjhoppy and unwatchable.
all drivers updated to latest versions, windows patched to latest version
any help is appreciated. thanks.

Dear Joshtb
Welcome in Lenovo forums
Would you please advise with the tablet model you have and what exactly you see once you start streaming the video
Please let me know
Thanks
Alaa
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Poor video playback with Windows XP

Hi all,
I am trying to play TV shows that bought from the ITMS (Xena & Star Trek remixed originals). I seem to be getting poor video playback performance. The video is briefly freezing and skipping. The frame rate is also not very good.
System specs:
2.6GHz P4 with hyperthreading enabled
2GB RAM
Matrox Parhelia 128 video card (latest drivers and firmware)
Soundblaster X-Fi Platinum
WinXP Pro SP2 + latest hotfixes
iTunes 7.2
I bought my first TV show after upgrading to iTunes 7.2 so I can't compare performance with v7.1 or earlier. I've tried playing the videos from a local IDE (D:, 60GB free out of 120GB) and from my 1TB Buffalo Terastation (RAID 5, 750GB). The performance is the same. The CPU activity varies from 75% to 95% CPU usage while playing the videos.
Even though my Matrox Parhelia is 3 years old it is still one of Matrox's top performance video cards and does excelent 2D and pretty good 3D.
Any help will be appreciated.
Thanks,
Steven

You're leaping to a conclusion that isn't supported by any facts. Just because you are having a problem is not an indictment of Safari 4. I'm having no trouble, nor are millions of other users, so that destroys your thesis. The problem is something that was a pre-existing condition on your Mac.
Did either of you Repair Disk Permission before and after installing it? If not, start with that. Do you have the most recent version of Flash installed? If not, download the Flash uninstaller from the Adobe web site, then the lastest Flash installer and run those, then restart Safari and test it on some video.

Choppy video playback with FCP 6 and 5D footage already converted to Aplle ProRes 422

I am trying to edit a film I shot on the Canon 5D using FCP 6. I converted my raw files from the Canon 5D to Apple ProRes (HQ) .
But as I try to work on the timeline everything is super choppy and drops frames constantly. I am trying to sync audio as well and it's been impossible since the video in not playing properly.
I have read many post and did everything you say to do, but no luck.
I have chosen the unlimited RT and still dosent wanna play right.
I'm editing off a 1TB G-RAID drive. It currently has 200GB left of free space, so that shouldn't slow things down. My computer has a 500GB Internal Hard Drive and I currently have 250GB of internal free space. Here are the specification of my computer:
Hardware Overview:
Model Name:          Mac Pro
Model Identifier:          MacPro3,1
Processor Name:          Quad-Core Intel Xeon
Processor Speed:          3.2 GHz
Number Of Processors:          2
Total Number Of Cores:          8
L2 Cache (per processor):          12 MB
Memory:          18 GB
Bus Speed:          1.6 GHz
THis should be a powerful computer, at least thats what I tough when i got it. There has to be a solution to my frustration..please help!!!

You could have a problem with your external drive. Run diskutility: diskrepair and diskwarrior (if you've got it) on it Is it formatted macosextended?   You might run a drive speed test and see if the drive is running up to spec.
Try copying one file to your internal drive and see if that plays any better.
Have you tried deleting your fcp preferences? (get preference manager from www.digitalrebellion.com)
Are you just monitoring the video on the computer screen?
You might try resetting your window arrangement in fcp; window: arrange: standard and see if that makes a difference.
Is playback uneven on both viewer and canvas in fcp?
I'd go out and buy a 7200 Sata drive and install it internally and try playing off of that. MacPro's have 4 internal drive bays and it's extremely easy to install another drive.

Choppy video playback with airplay from Macbook Pro

I experience very choppy video using airplay towards my Airplay unit (3rd gen).
I am using a Macbook Pro (15" retina, late 2013 version) with these specifications:
- Intel Core i7 2.7 GHz.
- 16 GB ram.
- 768 GB flash/SSD.
...and so on. I have the Mavericks OS installed (10.9.1).
When I duplicate or extend the screen of the computer to my Apple TV it is chopping EXTREMELY much. I am not talking a little bit - but it is not even watchable. I thought that it could be the router itself as the connection is (probably, correct me if I am wrong anyone) is directed from the computer - to the router - and then to the Apple TV, which could make the router like a filter in the process. And if something would prevent the signal from reaching the Apple TV with "full speed" it could prevent the actuall image.
However, when I am using the iPhone 4S and streaming video (both video found in my phone as well as streamed TV from apps such as Magine.com) the image flows completely flawless. There are not even a touch of lagging. It flows perfect, just as watching a movie directly on the TV.
The networking hardware in the phone is slower than in the Macbook Pro retina (late 2013) - both for sending and recieving data. But still... my iPhone works better than the Macbook Pro for the Apple TV. Even though that the processing, memory, graphic and networking power is probably a thousand times faster in the computer... it still performs really bad.
I have followed some discussion threads here (https://discussions.apple.com/message/22051725#22051725 and https://discussions.apple.com/thread/5734226?tstart=0 just as a couple of examples). I have accessed my router (Netgear Gigabit EVG 2000) and increased the Wireless mode to "up to 270 Mbps. I have also followed the previously linked threads and disabled the WMM (in the QoS-section). I felt that this made a little bit of a difference...
...when I am mirroring the screen and scale down the resolution to match the AirPlay screen (full-HD, 1920 x 1080) it works okay, but still chops quite a bit almost all the time. But if I extend the screen and want to watch TV at the same time as I am doing something else on the computer - then it chops so that it is not even possible to watch.
This have to be something either with the Mavericks OS or with my network settings - can anyone help me...? It would mean A LOT!

Curious why you think it would be my network when the same network is being used by the iPad 3rd Gen and iPhone 5 and they both stream without issue. As far as the other items you mentioned, all devices are up-to-date with the latest firmware/software and the latest MacBooks do not have ethernet ports. Speedtests that I have conducted also indicate that bandwidth is not the issue as the results show that the speeds received from the router are quite impressive.

CHOPPY FLASH VIDEO PLAYBACK WITH ADOBE FLASH VERSION 10-11

I'm having a problem as described in a previous post re: Choppy flash videos, pictures, etc.. Youtube, megavideo any videos viewed online appear fine at first and then after 10-15 mins, start showing choppy. The audio was not a problem before, but I have noticed that it is being affected as well. I saw some posts on another forum a few days ago that recommended disabling flash player 11 in my chrome browser plugins and enabling verion 10 (which was available, but has since upgraded) and version 10 was working fine until it upgraded to 11 again. Now I have no options to revert to version 10 again.
My system info is below:
Sony:
OS - Windows 7
64 bit
Browser Chrome 16.0.912.77
Browser FireFox 9.0.1
Browser IE 9
Browser Safari 5.1.2
Flash Player 11,1,102,55
McAfee (came with the upgrade of flash player)
This is very frustrating. I've tried uninstalling and re-installing, rebooting the browser, my pc, deleting cache files and cookies...NOTHING IS WORKING. CPU usage is between 20-35% when a video is active in my browser. I think that is normal, but I know that the choppy playback is not and it's only getting worse. Please HELP!
I hope this NEW POST will suffice as per your requirements.

When the video is choppy, how much CPU and RAM usage is occurring? Do you have a graphics control panel that shows how much video RAM is in use when the video is choppy?
Do you have a list of sites and videos where the video is choppy?
If you don't want the McAffee add-on, remove it.

Variable Speed and/or Frame-by-Frame Video playback with Waveform synchronization

I'm using Diadem 2011 to view data recorded in a LabVIEW Module that we have written. The function of our LabVIEW module is to simultaneously capture video from two infrared cameras and 8 channels of waveform data from a DAQ and record this data to disk. Data is recorded as two separate AVI files (compressed) and a TDMS file (using TDMS logging). Using Diadem, I use the video synchronization function to view the TDMS data and video files. I can scroll a cursor in the waveform data panel and view the video corresponding to the time selected.
I am looking for two features from Diadem that I am not sure are present: 1) A way to vary the playback speed from real-time. 2) A way to advance the video in a frame-by-frame manner. If anyone has any suggestions on how I might implement this in Diadem 2011 or can verify that these features are present, I would very much like to know.
Thanks in advance.
Solved!
Go to Solution.

Hello Resaebiunne,
All the functions you are looking for are available in the VIEW toolbar.
For the frame reverse/forward functions, please make sure that the section with the video inside is highlighted and then use these two buttons. The "Cursor Parameters" icon let's you change the playback speed.
Hope that helps,
Otmar
Otmar D. Foehner
Business Development Manager
DIAdem and Test Data Management
National Instruments
Austin, TX - USA
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary."

IPhone video playback with OpenGL?

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