- (void)createrVideoRecodr

{

//建立視訊裝置(攝像頭前，後)

NSArray*devices = [AVCaptureDevicedevicesWithMediaType:AVMediaTypeVideo];

//2.初始化一個攝像頭輸入裝置(first是後置攝像頭，last是前置攝像頭)

if(self.sendkBtn.selected==YES) {

self.inputVideo= [AVCaptureDeviceInputdeviceInputWithDevice:[deviceslastObject]error:NULL];

}else{

self.inputVideo= [AVCaptureDeviceInputdeviceInputWithDevice:[devicesfirstObject]error:NULL];

}

//3.建立麥克風裝置

AVCaptureDevice*deviceAudio = [AVCaptureDevicedefaultDeviceWithMediaType:AVMediaTypeAudio];

//4.初始化麥克風輸入裝置

AVCaptureDeviceInput*inputAudio = [AVCaptureDeviceInputdeviceInputWithDevice:deviceAudioerror:NULL];

//5.初始化一個movie的檔案輸出

AVCaptureMovieFileOutput*output = [[AVCaptureMovieFileOutputalloc]init];

self.output= output;//儲存output，方便下面操作

//6.初始化一個會話

self.session= [[AVCaptureSessionalloc]init];

//7.將輸入輸出裝置新增到會話中

if([self.sessioncanAddInput:self.inputVideo]) {

[self.sessionaddInput:self.inputVideo];

}

if([self.sessioncanAddInput:inputAudio]) {

[self.sessionaddInput:inputAudio];

}

if([self.sessioncanAddOutput:output]) {

[self.sessionaddOutput:output];

}

//8.建立一個預覽塗層

AVCaptureVideoPreviewLayer*preLayer = [AVCaptureVideoPreviewLayerlayerWithSession:self.session];

//設定圖層的大小

[preLayersetVideoGravity:AVLayerVideoGravityResizeAspectFill];

preLayer.frame=self.view.frame;

preLayer.frame=CGRectMake(0,100,WIDTH,HEIGHT-300);

//新增到view上

[self.view.layeraddSublayer:preLayer];

self.recordkBtn= [UIButtonbuttonWithType:UIButtonTypeCustom];

self.recordkBtn.frame=CGRectMake(50,HEIGHT-100,WIDTH-100,50);

self.recordkBtn.backgroundColor= [UIColorredColor];

[self.recordkBtnsetTitle:@"按下錄製"forState:UIControlStateNormal];

[self.viewaddSubview:self.recordkBtn];

UILongPressGestureRecognizer*guesture = [[UILongPressGestureRecognizeralloc]initWithTarget:selfaction:@selector(recordSpeakBtnPressed:)];

guesture.delegate=self;

[self.sessionstartRunning];

guesture.minimumPressDuration=0.01f;

[self.recordkBtnaddGestureRecognizer:guesture];

}- (void)recordSpeakBtnPressed:(UILongPressGestureRecognizer*)gestureRecognizer {

if(gestureRecognizer.state==UIGestureRecognizerStateBegan) {

[self.sessionstartRunning];

[self.recordkBtnsetTitle:@"鬆開結束"forState:UIControlStateNormal];

}

if(gestureRecognizer.state==UIGestureRecognizerStateEnded) {

[self.sessionstopRunning];

[self.recordkBtnsetTitle:@"按下錄製"forState:UIControlStateNormal];

}

////判斷是否在錄製,如果在錄製，就停止，並設定按鈕title

//if ([self.output isRecording]) {

//[self.output stopRecording];

//[self.recordkBtn setTitle:@"按下錄製" forState:UIControlStateNormal];

//

//return;

//}

////設定按鈕的title

//[self.session startRunning];

//[self.recordkBtn setTitle:@"鬆開結束" forState:UIControlStateNormal];

//設定錄製視訊儲存的路徑

NSString*path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES).lastObjectstringByAppendingPathComponent:@"myVidio.mov"];

//轉為視訊儲存的url

NSURL*url = [NSURLfileURLWithPath:path];

//開始錄製,並設定控制器為錄製的代理

[self.outputstartRecordingToOutputFileURL:urlrecordingDelegate:self];

}

- (void)captureOutput:(AVCaptureFileOutput*)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL*)outputFileURL fromConnections:(NSArray*)connections error:(NSError*)error

{

PlayVideoController*playVideo = [[PlayVideoControlleralloc]init];

NSString*str=[outputFileURLabsoluteString];

playVideo.videoUrl= str;//視訊路勁

playVideo.isRecord=YES;

[self.navigationControllerpushViewController:playVideoanimated:YES];

}