iPhone/iPad开发札记 2012/02/27

1.  Reading: Camera Programming Topics for iOS 

* 2 says to handle picture / movie capturing 

UIImagePickerController - simple but limited 

AV Foundation ( AVAsset ?) - powerful and fully customized 

     Note:  See "Media Capture and Access to Camera " in AV Foundation Programming Guide 

* configuring camera interface 

UIRequiredDeviceCapabilities key in Info.plist

* source type

sourceType = UIImagePickerControllerSourceTypeCamera.

always call: isSourceTypeAvailable before using camera 

* media types

kUTTypeImage 

kUTTypeMovie

always check available media types:  availableMediaTypesForSourceType:

* editing controls 

* delegate 

Q: 似乎video直接就成了文件了，没有办法直接读到video的packet ???