video录制时如何接收字节
我正在开发iphonevideo应用程序,在用户录制video本身时,我想获取磁盘占用的字节。
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info;
这个方法是在用户完成picking后调用的,有什么方法
UIImage *img = [UIImage imageNamed:@"sample.png"]; NSData *imgData = UIImageJPEGRepresentation(img, 0); NSLog(@"Size of Image(bytes):%d",[imgData length]);
NSData *data = [info objectForKey: UIImagePickerControllerMediaMetadata];