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Questions tagged [qtkit]

The QuickTime Kit is an Objective-C framework (QTKit.framework) with an API for manipulating time-based media.

QuickTime Kit (aka QTKit) is a developer framework that is intended to replace previous APIs for Cocoa developers. This framework is for Mac only, and exists as Objective-C abstractions around a subset of the C interface. Mac OS X v10.5 extends QTKit to full 64-bit support. The QTKit allows multiplexing between Quicktime X and Quicktime 7 behind the scenes so that the user need not worry about which version of Quicktime they need to use.

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Using external video hardware - beginner needs directions

I have a little application here which deals with QuickTime video using QTKit. This is my first Cocoa app, so I'm still pretty new to programming for OS X. As the main stuff is now working, I was wondering how I could use and support external video…
guitarflow
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QTCaptureDecompressedVideoOutput with FireWire

I'm trying to create a custom patch for Quartz Composer that captures from a FireWire input. I can open the device and add the input successfully. I even disable the audio inputs as per the QTKit documentation. I suspect my problem is either…
Adam
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QTMovie addImage:forDuration:withAttributes: can't be played by QuickTime Player X

I have a mov file, that I am modifying by adding a track with an image to the beginning of the movie (using QTMovie's -addImage method). When I flatten such a movie (using -writeToFile: method of QTMovie), I get an another .mov file with this…
itsjustme
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Adding few new frames in the beginning of the movie (QTKit)

I need to load a movie file, insert several frames in the beginning of it, and save the video file (preserving it's original video and audio format, which is important). QTKit Overview document describes how to retrieve and apply different filters…
O.W.Grant
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How to change the opacity of a QTTrack

I'm trying to make a QTMovie with picture in picture. I have two movies, one that is a video from a file, and one recorded with a camera. I want the camera movie to show up above the other video and be slightly transparent. I can position the camera…
Randall
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QTKit video playback gives screen garbage with ofxQTKitVideoPlayer

I've downloaded this example. It compiles fine and runs but gives this: http://charliewilliams.org/images/screengarbage.png It would seem that something's not clearing a screen buffer? I'm using the included .mov file and openFrameworks 0062 and 007…
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Can I make QTKit Capture support an IP camera?

I've got an IP camera - an Axis M1114 - that I'd like to use as a QTKit Capture device. Only DV cameras and the iSight usually appear on this capture menu. Is there any way of getting the IP camera to appear in this list and work with QTKit…
John Gallagher
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Modifying video frames with QTKit and OpenGL

I am working on a project where I would like to open a video (on a Mac) with QTKit. That part I can do no problem, but as I am playing it, I would like to edit or modify the video on the fly using OpenGL. From what I understand, I should be able to…
jabroni
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overlap 2 QTDeviceInput in the same view

I'm programming a cocoa app that can edit the streaming videos from different QTDeviceInputs. At this moment I can easily display 2 QtDeviceInputs in 2 differents QTCaptureView, but I wonder if it's possible to overlap (maybe with transparency) the…
Jacopo Berta
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how to set Document Types for QTKit in XCode 4?

I hope you can help me with my little problem here. I'm just starting with Cocoa and XCode 4 and I'm working myself through a bunch of tutorials. I have one tutorial off the Apple site called "QTKit Application Tutorial" ( it can be found here…
guitarflow
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QTKit, opening input devices?

I'm trying to add two inputs to a QTCaptureSession in the following: mainSession = [[QTCaptureSession alloc] init]; BOOL success; NSError* error; QTCaptureDevice *videoDevice = [QTCaptureDevice…
cemulate
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Cocoa QTKit and recording movies

I'm new with the whole QTKit and I was looking for some feedback on the following code that I am attempting to use to display the camera's image and record movies. - (void)initializeMovie { NSLog(@"Hi!"); QTCaptureSession* mainSession =…
cemulate
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Overall memory bytes limited?

I'm creating a video editing program with QTKit. There is a sample program provided by apple…
fish potato
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Mirroring CIImage/NSImage

Currently I have the following CIImage *img = [CIImage imageWithCVImageBuffer: imageBuffer]; NSCIImageRep *imageRep = [NSCIImageRep imageRepWithCIImage:img]; NSImage *image = [[[NSImage alloc] initWithSize: [imageRep size]] autorelease]; [image…
Brandon Schlenker
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Resizing a QTCaptureView embedded in a Qt app

So, I want to have an app in Mac that will show a live video preview through my iSight while allowing users to take snapshots. Basically, it's similar to the Still Motion Demo, except now I have to make it work under a Qt app. That is, I'm having mm…
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