Capturing video using Avcapturesession

#import<UIKit/UIKit.h>#import<AVFoundation/AVFoundation.h>#import<AssetsLibrary/AssetsLibrary.h>@interfaceViewcontroller:uiviewcontroller<AVCaptureFileOutputRecordingDelegate>@property (Strong, nonatomic) avcapturesession*capturesession, @property (Strong, nonatomic) Avcapturedeviceinput*Videoinput; @property (Strong, nonatomic) Avcapturedeviceinput * audioinput; @property (Strong, nonatomic) Avcapturestillimageoutput*Stillimageoutput; @property (Strong, nonatomic) Avcapturemoviefileoutput * movieoutput; @property (Weak, nonatomic) Iboutlet UIButton*Capturebutton, @property (weak, nonatomic) Iboutlet Uisegmentedcontrol*Modecontrol;-(Ibaction) Capture: (ID) sender;-(Ibaction) UpdateMode: (ID) sender;@end

#import "ViewController.h"@interfaceViewcontroller ()@end@implementationViewcontroller@synthesizeCapturebutton;@synthesizeModecontrol;- (void) viewdidload{[Super Viewdidload]; //additional setup after loading the view, typically from a nib.Self.capturesession =[[Avcapturesession alloc] init]; //Optional:self.captureSession.sessionPreset = avcapturesessionpresetmedium;Avcapturedevice*videodevice =[Avcapturedevice Defaultdevicewithmediatype:avmediatypevideo]; Avcapturedevice *audiodevice = [Avcapturedevice Defaultdevicewithmediatype:avmediatypeaudio]; Self.videoinput=[Avcapturedeviceinput Deviceinputwithdevice:videodevice Error:nil]; self.audioinput = [[Avcapturedeviceinput alloc] Initwithdevice:audiodevice Error:nil]; Self.stillimageoutput=[[Avcapturestillimageoutput alloc] init]; Nsdictionary*stillimageoutputsettings =[[Nsdictionary alloc] Initwithobjectsandkeys:avvideocodecjpeg, AVVIDEOC    Odeckey, nil];        [Self.stillimageoutput setoutputsettings:stillimageoutputsettings]; self.movieoutput = [[Avcapturemoviefileoutput alloc] init]; //Setup capture session for taking pictures [Self.capturesession addInput:self.videoInput];        [Self.capturesession AddOutput:self.stillImageOutput]; Avcapturevideopreviewlayer*previewlayer =[Avcapturevideopreviewlayer layerWithSession:self.captureSession]; UIView*aview =Self.view; Previewlayer.frame= CGRectMake (0, -, Self.view.frame.size.width, self.view.frame.size.height- $); [Aview.layer Addsublayer:previewlayer];}- (void) didreceivememorywarning{[Super didreceivememorywarning]; //Dispose of any resources the can be recreated.}-(BOOL) shouldautorotatetointerfaceorientation: (uiinterfaceorientation) interfaceorientation{return(Interfaceorientation! =uiinterfaceorientationportraitupsidedown);}- (void) capturestillimage{avcaptureconnection*stillimageconnection = [Self.stillImageOutput.connections objectatindex:0]; if([stillimageconnection isvideoorientationsupported]) [Stillimageconnection Setvideoorientation:avcapturevideo        Orientationportrait];                                                         [Self stillimageoutput] Capturestillimageasynchronouslyfromconnection:stillimageconnection Completionhandler:^ (Cmsamplebufferref imagedatasamplebuffer, Nserror *error) {         if(Imagedatasamplebuffer! =NULL) {NSData*imagedata =[Avcapturestillimageoutput Jpegstillimagensdatarepresentation:imagedatasamplebuffer]; Alassetslibrary*library =[[Alassetslibrary alloc] init]; UIImage*image =[[UIImage alloc] initwithdata:imagedata]; [Library Writeimagetosavedphotosalbum:[image Cgimage] Orientation: (alassetorientatio n) [Image imageorientation] Completionblock:^ (Nsurl *asseturl, Nserror *error) {Uialertview*alert; if(!error) {Alert= [[Uialertview alloc] Initwithtitle:@"Photo Saved"message:@"The photo was successfully saved -to-you photos library"                                                        Delegate: nil Cancelbuttontitle:@"OK"Otherbuttontitles:nil, nil]; }                  Else{alert= [[Uialertview alloc] Initwithtitle:@"Error Saving Photo"message:@"The photo was not a saved to photos library"                                                        Delegate: nil Cancelbuttontitle:@"OK"Otherbuttontitles:nil, nil];              } [alert show];         }              ]; }         ElseNSLog (@"Error capturing still Image:%@", error); }];}-(Nsurl *) tempfileurl{NSString*outputpath = [[NSString alloc] Initwithformat:@"%@%@", Nstemporarydirectory (),@"Output.mov"]; Nsurl*outputurl =[[Nsurl alloc] initfileurlwithpath:outputpath]; Nsfilemanager*manager =[[Nsfilemanager alloc] init]; if([manager Fileexistsatpath:outputpath]) {[manager Removeitematpath:outputpath Error:nil]; }    returnOutputurl;}-(Ibaction) Capture: (ID) sender{if (Self.modeControl.selectedSegmentIndex = = 0) {//Picture Mode[self capturestillimage]; }    else {//Video Mode if (self.movieOutput.isRecording = = YES) {[Self.capturebutton            settitle:@ "Capture" forstate:uicontrolstatenormal];        [Self.movieoutput stoprecording];            } else {[Self.capturebutton settitle:@ "Stop" forstate:uicontrolstatenormal];        [Self.movieoutput startrecordingtooutputfileurl:[self Tempfileurl] recordingdelegate:self]; }    }}-(Ibaction) UpdateMode: (ID) sender{[self.capturesession stoprunning]; if(Self.modeControl.selectedSegmentIndex = =0)    {        if(Self.movieOutput.isRecording = =YES)        {[Self.movieoutput stoprecording]; }        //Picture Mode[Self.capturesession RemoveInput:self.audioInput];        [Self.capturesession RemoveOutput:self.movieOutput];    [Self.capturesession AddOutput:self.stillImageOutput]; }    Else    {        //Video Mode[Self.capturesession RemoveOutput:self.stillImageOutput];        [Self.capturesession AddInput:self.audioInput];                [Self.capturesession AddOutput:self.movieOutput]; //Set orientation of capture connections to portraitNsarray *array = [[Self.captureSession.outputs objectatindex:0] connections];  for(Avcaptureconnection *connectioninchArray) {connection.videoorientation=avcapturevideoorientationportrait; }} [Self.capturebutton Settitle:@"Capture"Forstate:uicontrolstatenormal]; [Self.capturesession startrunning];}- (void) Viewwillappear: (BOOL) animated{[Super viewwillappear:animated]; [Self.capturesession startrunning];}- (void) Viewwilldisappear: (BOOL) animated{[Super viewwilldisappear:animated]; [Self.capturesession stoprunning];}- (void) Captureoutput: (Avcapturefileoutput *) Captureoutputdidfinishrecordingtooutputfileaturl: (Nsurl*) Outputfileurl fromconnections: (Nsarray*) connections Error: (Nserror*) error{BOOL recordedsuccessfully=YES; if([error code]! =NOERR) {        //A problem Occurred:find out if the recording is successful.        IDValue =[[Error UserInfo] objectforkey:averrorrecordingsuccessfullyfinishedkey]; if(value) recordedsuccessfully=[value boolvalue]; //Logging The problem anyway:NSLog (@"A problem occurred while recording:%@", error); }    if(recordedsuccessfully) {alassetslibrary*library =[[Alassetslibrary alloc] init]; [Library Writevideoatpathtosavedphotosalbum:outputfileurl Completionblock:^ (Nsurl *asseturl, Nserror *error) {Uialertview*alert; if(!error) {Alert= [[Uialertview alloc] Initwithtitle:@"Video Saved"message:@"The movie was successfully saved to you photos library"                                                   Delegate: nil Cancelbuttontitle:@"OK"Otherbuttontitles:nil, nil]; }             Else{alert= [[Uialertview alloc] Initwithtitle:@"Error Saving Video"message:@"The movie is not a saved to you photos library"                                                   Delegate: nil Cancelbuttontitle:@"OK"Otherbuttontitles:nil, nil];         } [alert show];    }         ]; }}@end

Capturing video using Avcapturesession