>> On Dec 2, 2012, at 22:02 , gary.gard...@brokensoftware.com wrote: >> >>> Can anyone tell me what the next steps are? Any snippets of code that >>> I >>> can look at? I'm sure I'm not the first to try to do this. >> >> Have you looked here? >> >> >> https://developer.apple.com/library/mac/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/04_MediaCapture.html >> >> It seems pretty explicit about how to get video frames, and there are >> code >> fragments you can use. >> >> >> > > Quincey, > > That's what I have been reading for the past few days and I'm waiting on > the light to dawn. I think I am missing some small bit as I am getting an > error. > > I will keep digging. I'm sure I'll figure out this last 5% somehow. > > Thanks >
Quincey, I also found this example --> https://developer.apple.com/library/ios/#qa/qa1702/_index.html Of course there are some issues with it as it's from IOS, but I assume this is the pattern that is supposed to be used. Using this pattern, I get a little further. Below is a snippet of my code. Ignore that fact that I have a few things out of order: - (void)setSelectedVideoDevice:(AVCaptureDevice *)selectedVideoDevice { [[self session] beginConfiguration]; if ([self videoDeviceInput]) { // Remove the old device input from the session [session removeInput:[self videoDeviceInput]]; [self setVideoDeviceInput:nil]; } if (selectedVideoDevice) { NSError *error = nil; // Create a device input for the device and add it to the session AVCaptureDeviceInput *newVideoDeviceInput = [AVCaptureDeviceInput deviceInputWithDevice:selectedVideoDevice error:&error]; if (newVideoDeviceInput == nil) { dispatch_async(dispatch_get_main_queue(), ^(void) { [self presentError:error]; }); } else { if (![selectedVideoDevice supportsAVCaptureSessionPreset:[session sessionPreset]]) [[self session] setSessionPreset:AVCaptureSessionPresetHigh]; [[self session] addInput:newVideoDeviceInput]; [self setVideoDeviceInput:newVideoDeviceInput]; AVCaptureVideoDataOutput *output = [[AVCaptureVideoDataOutput alloc] init]; [session addOutput:output]; // Configure your output. dispatch_queue_t queue = dispatch_queue_create("myQueue", NULL); [output setSampleBufferDelegate:self queue:queue]; dispatch_release(queue); } } [[self session] commitConfiguration]; } The setSampleBufferDelegate:self queue:queue gives a warning in XCode that says Sending '<my object name here>' to parameter of incompatible type 'id'<AVCaptureVideoDataOutputSampleBufferDelegate>' I am not sure how to fix this. Any thoughts would be helpful. And yes I am a newbie when it comes to Objective-C and Mac development. So not everything is totally clear to me on using this framework. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
