ipad 앱에 동영상 클립을 녹화하고 문서 폴더에 저장하는 방법

Question

교육용 앱이 있습니다. 사용자가 recordVideo 버튼 카메라를 클릭하여 동영상을 녹화해야 할 때 ipad 앱에서이를 수행 할 수있는 방법이 있습니까? 이미 오디오 녹음을했는데 비디오 녹음을해야합니다.

Answer 1

//for video.. 
#import <MobileCoreServices/MobileCoreServices.h> 
#import <AVFoundation/AVFoundation.h> 
#import <MediaPlayer/Mediaplayer.h> 

#import <CoreMedia/CoreMedia.h> 



UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 

    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) 
    { 
     NSArray *mediaTypes = [NSArray arrayWithObject:(NSString*)kUTTypeMovie]; 
     picker.mediaTypes = mediaTypes ; 
     picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
     picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo ; 

     [self presentModalViewController:picker animated:NO]; 

     [picker release]; 
    } 
    else 
    { 
     UIAlertView *alt=[[UIAlertView alloc]initWithTitle:@"Error" message:@" Camera Facility is not available with this Device" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; 
     [alt show]; 
     [alt release]; 
    } 

을 문서 폴더에 저장하는 & 또한 사진 라이브러리에서이 작동

NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString* documentsDirectory = [paths objectAtIndex:0]; 


     //for video 
     NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; 
     NSLog(@"video url-%@",videoURL); 

     NSData *videoData = [NSData dataWithContentsOfURL:videoURL]; 

     NSString * videoName = [NSString stringWithFormat:@"student_%d_%d.mp4",stud_id,imgVidID]; 

     videoPath = [documentsDirectory stringByAppendingPathComponent:videoName]; 

     NSLog(@"video path-%@",videoPath); 

     [videoData writeToFile:videoPath atomically:YES]; 

     NSString *sourcePath = [[info objectForKey:@"UIImagePickerControllerMediaURL"]relativePath]; 

     UISaveVideoAtPathToSavedPhotosAlbum(sourcePath,nil,nil,nil); 

} 

Answer 2

이 시도 ::

-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info 
{ 
    [self dismissViewControllerAnimated:NO completion:nil]; 
    NSString *type = [info objectForKey:UIImagePickerControllerMediaType]; 

    if ([type isEqualToString:(NSString *)kUTTypeVideo] || [type isEqualToString:(NSString *)kUTTypeMovie]) 
    { 
     videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; 

     NSLog(@"found a video"); 

     // Code To give Name to video and store to DocumentDirectory // 

     videoData = [[NSData dataWithContentsOfURL:videoURL] retain]; 
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
     NSString *documentsDirectory = [paths objectAtIndex:0]; 

     NSDateFormatter *dateFormat = [[[NSDateFormatter alloc] init] autorelease]; 
     [dateFormat setDateFormat:@"dd-MM-yyyy||HH:mm:SS"]; 
     NSDate *now = [[[NSDate alloc] init] autorelease]; 
     theDate = [dateFormat stringFromDate:now]; 

     NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"Default Album"]; 

     if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) 
      [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:nil]; 

     NSString *videopath= [[[NSString alloc] initWithString:[NSString stringWithFormat:@"%@/%@.mov",documentsDirectory,theDate]] autorelease]; 

     BOOL success = [videoData writeToFile:videopath atomically:NO]; 

     NSLog(@"Successs:::: %@", success ? @"YES" : @"NO"); 
     NSLog(@"video path --> %@",videopath); 
    } 
} 

희망, 그것은 당신을 도울 것입니다.

감사합니다.

Answer 3

그냥 시도 :

-(void) imagePickerController: (UIImagePickerController *) picker didFinishPickingMediaWithInfo: (NSDictionary *) info 
{ 
    NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType]; 
    [self dismissModalViewControllerAnimated:NO]; 
    NSString *moviePath = [[info objectForKey: UIImagePickerControllerMediaURL] path]; 
    if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum (moviePath)){ 
     UISaveVideoAtPathToSavedPhotosAlbum (moviePath,self, @selector(video:didFinishSavingWithError:contextInfo:), nil); 
       } 
} 

-(void)video:(NSString*)videoPath didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo { 
if (error) { 
     [AJNotificationView showNoticeInView:self.view type:AJNotificationTypeRed title:@"Video Saving Failed" linedBackground:AJLinedBackgroundTypeAnimated hideAfter:1.0]; 
    } 
    else{   
     NSURL *videoURl = [NSURL fileURLWithPath:videoPath]; 
     AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:videoURl options:nil]; 
     AVAssetImageGenerator *generate = [[AVAssetImageGenerator alloc] initWithAsset:asset]; 
     generate.appliesPreferredTrackTransform = YES; 
     NSError *err = NULL; 
     CMTime time = CMTimeMake(1, 60); 
     CGImageRef imgRef = [generate copyCGImageAtTime:time actualTime:NULL error:&err]; 





    self.strUploadVideoURL = videoPath; 
     [imgPhoto setImage:[[[UIImage alloc] initWithCGImage:imgRef] autorelease]]; 
     intWhenPushView = 2; 
     btnShare.enabled = YES; 
     btnFacebookShare.enabled = YES; 



CGImageRelease(imgRef); 
    [generate release]; 
    [asset release]; 
    } 
}