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2014/10/15 ¤U¤È 10:04:54

iphone Programming Glossary: capturing

Capture 60fps in iPhone app

http://stackoverflow.com/questions/10344637/capture-60fps-in-iphone-app

60fps in iPhone app I am working on a project where we will be using iPhones as cameras for capturing a scene. When recording we need to record @60fps and not 30fps as natively supported . So I am working on an app to do this..

iOS: Get pixel-by-pixel data from camera

http://stackoverflow.com/questions/10865100/ios-get-pixel-by-pixel-data-from-camera

and it requires some boilerplate code to configure. Once you have your capture session configured and you are capturing data from the camera you will set up a captureOutput didOutputSampleBuffer fromConnection delegate method where one of the..

Using AVCaptureSession and AVAudioPlayer together

http://stackoverflow.com/questions/10903542/using-avcapturesession-and-avaudioplayer-together

is my code to create the capture session and to play the audio. The video capture is started first then during the capturing I want to play some audio. Thanks so much for any help. Code to create the capture session to record video with audio output..

to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and why?)

http://stackoverflow.com/questions/14659563/to-drawrect-or-not-to-drawrect-when-should-one-use-drawrect-core-graphics-vs-su

understanding in my answer below could the same performance gains for a table cell possibly be gained by effectively capturing a snapshot bitmap of your cell after your complex UIView render's itself and displaying that while scrolling and hiding..

How do I create/render a UIImage from a 3D transformed UIImageView?

http://stackoverflow.com/questions/1949003/how-do-i-create-render-a-uiimage-from-a-3d-transformed-uiimageview

DEGREES_TO_RADIANS degrees 1 0 0 perspective transform on y axis imageView.layer.transform transform3D FAIL capturing layer contents doesn't get the transformed image just the original CGImageRef newImageRef CGImageRef imageView.layer.contents..

MFMailComposeViewController image orientation

http://stackoverflow.com/questions/20204495/mfmailcomposeviewcontroller-image-orientation

except that I am now sending the image as a JPEG rather than a PNG but this has made no difference. This is how I'm capturing the image with the imagePickerController and placing it into a global called gImag gImag UIImage info valueForKey UIImagePickerControllerOriginalImage..

Need to capture UIView into a UIImage, including all subviews

http://stackoverflow.com/questions/3129352/need-to-capture-uiview-into-a-uiimage-including-all-subviews

the UIGraphicsGetImageFromCurrentImageContext function it doesn't seem to capture the subviews as well. Should it be capturing the subviews and I'm just doing something wrong If not is there any other way of accomplishing this iphone uiview uiimage..

how to convert a CVImageBufferRef to UIImage

http://stackoverflow.com/questions/3152259/how-to-convert-a-cvimagebufferref-to-uiimage

How to properly release an AVCaptureSession

http://stackoverflow.com/questions/3741121/how-to-properly-release-an-avcapturesession

self queue queue dispatch_release queue self retain ... Unfortunately I now have to explicitly stop capturing. Otherwise releasing my instance won't free it because the second thread now increments and decrements the counter as well...

iPhone SDK 4 AVFoundation - How to use captureStillImageAsynchronouslyFromConnection correctly?

http://stackoverflow.com/questions/3847140/iphone-sdk-4-avfoundation-how-to-use-capturestillimageasynchronouslyfromconnec

the AVCaptureConnection it's supposed to work . I remember this deadlocking they may have fixed this. I ended up just capturing video frames. The take picture button simply sets a flag in the video frame callback if the flag is set it returns the video..

Recording Video in iPhone using AVFoundation Framework(AVCaptureSession)?

http://stackoverflow.com/questions/3862402/recording-video-in-iphone-using-avfoundation-frameworkavcapturesession

like this one http www.benjaminloulier.com posts 2 ios4 and direct access to the camera but in these tutorials only capturing images from the video frames is done while i want to record a full length video which i can either save in my device or..

video capture software for iPhone Simulator [closed]

http://stackoverflow.com/questions/4183768/video-capture-software-for-iphone-simulator

of application which performs their functionality of application and capture it in video. Please suggest me some video capturing tool for my app promotion. Suggestions are always appreciated. regards iphone share improve this question The perfect..

Manually triggering the iPhone/iPad/iPod keyboard from JavaScript

http://stackoverflow.com/questions/4609765/manually-triggering-the-iphone-ipad-ipod-keyboard-from-javascript

triggering the iPhone iPad iPod keyboard from JavaScript I am developing an HTML code editor using simple DIV's and capturing events. When I use this on the iPad the keyboard never pops up since i'm not technically in an editable field. Is there..

How do you create a custom camera view, instead of UIImagePickerViewController?

http://stackoverflow.com/questions/5156417/how-do-you-create-a-custom-camera-view-instead-of-uiimagepickerviewcontroller

view instead of UIImagePickerViewController I created a simple application using UIImagePickerViewController for capturing from the camera but I'd like to customize the interface for grabbing from the camera such as adding some buttons. UIImagePickerViewController.. doesn't allow this directly so how would you create a custom view that allows for displaying the live camera feed and capturing from it iphone ios cocoa touch share improve this question The easy way is to continue to use UIImagePickerViewController..

How to apply “filters” to AVCaptureVideoPreviewLayer

http://stackoverflow.com/questions/5156872/how-to-apply-filters-to-avcapturevideopreviewlayer

coming in on the preview layer to Black White. I found a question here that seems to accomplish something similar by capturing the individual video frames in a buffer applying the desired transformations then displaying each frame as an UIImage. For.. an open source framework called GPUImage that encapsulates this kind of custom image filtering. It also handles capturing video and displaying it to the screen after being filtered requiring as few as six lines of code to set all of this up...

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

result image orientation after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker..

How to take picture from Camera & saved in Photo Gallery by programmatically?

http://stackoverflow.com/questions/6812634/how-to-take-picture-from-camera-saved-in-photo-gallery-by-programmatically

else UIAlertView alert UIAlertView alloc initWithTitle @ Unsupported message @ Camera does not support photo capturing. delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release else UIAlertView alert UIAlertView..

Possible to pass [self anyFunction] in blocks without __weak object (iOS 5 + ARC)

http://stackoverflow.com/questions/9003600/possible-to-pass-self-anyfunction-in-blocks-without-weak-object-ios-5-arc

block without a warning. But if you write your own method with a completion block the following warning occurs capturing 'self' strongly in this block is likely to lead to a retain cycle . A working solution is quite simple iOS 5 ARC . Before..

Capture 60fps in iPhone app

http://stackoverflow.com/questions/10344637/capture-60fps-in-iphone-app

CMTimeMake 1 60 gives you a stable super smooth capture. How to capture frames into a file @60fps Capturing frames is all very well but presumably you want to keep them. As Brad noted in the comments writing those frames to a file..

What can cause “invalid binary” with no email followup from iTunes Connect?

http://stackoverflow.com/questions/3433360/what-can-cause-invalid-binary-with-no-email-followup-from-itunes-connect

NO CODE_SIGN_ENTITLEMENTS Entitlements.plist CODE_SIGN_IDENTITY CODE_SIGN_IDENTITY sdk iphoneos iPhone Distribution Capturing Moments CODE_SIGN_RESOURCE_RULES_PATH OTHER_CODE_SIGN_FLAGS STRIPFLAGS ALTERNATE_GROUP INSTALL_GROUP ALTERNATE_OWNER INSTALL_OWNER..

Capturing UITextView data in an NSString

http://stackoverflow.com/questions/3574618/capturing-uitextview-data-in-an-nsstring

UITextView data in an NSString Hey all I am trying to accomplish something very simple yet getting an error and it's driving..

Capturing video while processing it through a shader on iPhone

http://stackoverflow.com/questions/5228406/capturing-video-while-processing-it-through-a-shader-on-iphone

video while processing it through a shader on iPhone I am trying to develop an iPhone app that processes filters and records..

Capturing zoomed preview view in AVFoundation

http://stackoverflow.com/questions/8150148/capturing-zoomed-preview-view-in-avfoundation

zoomed preview view in AVFoundation I am working with zoom functionality in AVFoundation camera i have implemented zoom..

Capturing Images from AVCaptureSession

http://stackoverflow.com/questions/8264749/capturing-images-from-avcapturesession

Images from AVCaptureSession I am learning about AVCaptureSession and how to capture multiple images with its delegate..

ios capturing image using AVFramework

http://stackoverflow.com/questions/8924299/ios-capturing-image-using-avframework

return image void setSession AVCaptureSession session NSLog @ setting session... self.captureSession session Capturing code works. But I need to change to things video stream from the camera in my view. getting images every for example 5 seconds..

AVCaptureSession specify resolution and quality of captured images obj-c iphone app

http://stackoverflow.com/questions/9312832/avcapturesession-specify-resolution-and-quality-of-captured-images-obj-c-iphone

Help me please iphone objective c avcapturesession avcapture share improve this question Refer to Apple's guide Capturing Still Images section regarding which sizes you'll get if you set one or another preset. The parameter you should change..

Capturing mobile phone traffic on wireshark

http://stackoverflow.com/questions/9555403/capturing-mobile-phone-traffic-on-wireshark

mobile phone traffic on wireshark How can I capture mobile phone traffic on wireshark android iphone ios networking wireshark..

Capturing EAGLview content WITH alpha channel on iPhone

http://stackoverflow.com/questions/962390/capturing-eaglview-content-with-alpha-channel-on-iphone

EAGLview content WITH alpha channel on iPhone have been struggling with this issue for quite some time now and couldn't..