UIImagePickerController流类型用于追加.MOV？

Question

UIImagePickerController中的AVCaptureMovieFileOutput在iOS7中使用了什么流来将视频帧从相机附加到它的临时.MOV文件？

.MOV文件在临时位置创建，然后当用户通过iOS7中呈现的UIImagePickerController录制视频时，由基础AVCaptureMovieFileOutput对象进一步追加。

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我试图使用符号断点和方法调配来确定以下其中一项（但没有成功）。我可能错过了实际使用的一种流类型或类（或我的断点设置不正确）：

• NSWriteStream
• CFWriteStream
• 子类化NSStream
• fstream的
• ofstream的
• ostream的
• 的iostream
• NSFileHandle
• posix文件描述符
• AVAssetWriter
• AVAssertExportSession
• ALAssetClass
• ALAssetLibrary

这是我用来呈现UIImagePickerViewController来录制视频的内容：

    #import <MobileCoreServices/MobileCoreServices.h>

    -(void)startPicker{
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        [picker setSourceType:UIImagePickerControllerSourceTypeCamera];
        [picker setAllowsEditing:NO];
        [picker setDelegate:self];
        [picker setMediaTypes:@[(NSString*)kUTTypeMovie]];
        [self presentViewController:picker animated:YES completion:nil];
    }

    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
        [picker dismissViewControllerAnimated:YES completion:nil];
        if (info)
        {
           NSURL* fileURL = [info objectForKey:UIImagePickerControllerMediaURL];
           NSLog(@"%@", fileURL.path);
        }
    }

    - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
        [picker dismissViewControllerAnimated:YES completion:nil];
    }

我真的需要特定的流类型以及我可以为自己证明它正被iOS7使用的方式。非常感谢！

Answer 1

你可以证明一种方式吗？我不确定，但Apple赞成使用m3u8进行流式传输

https://developer.apple.com/library/ios/documentation/networkinginternet/conceptual/streamingmediaguide/DeployingHTTPLiveStreaming/DeployingHTTPLiveStreaming.html