How to capture video and to save into documents directory of iPhone

Question

我想在iphone4中捕获视频，并且在完成时我想存储在iPhone的文档目录中。请帮助。我能够使用UIImagePickerController捕获视频，但无法将其保存到文档目录中。

Answer 1

If you want to save videos with a UIImagePicker, you can easily save them to the Photos Album via:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info; {
  NSURL * movieURL = [[info valueForKey:UIImagePickerControllerMediaURL] retain];// Get the URL of where the movie is stored.
  UISaveVideoAtPathToSavedPhotosAlbum([movieURL path], nil, nil, nil);
}

This allows you to save it to the Photos Album, and keep a reference path to the movie for use later. I'm not quite sure if this is what you need, but it does allow you to save movies.

EDIT: If you really want to save the Movie to documents directory, simply take the above code, and change the line:

UISaveVideoAtPathToSavedPhotosAlbum([movieURL path], nil, nil, nil);

to

NSData * movieData = [NSData dataWithContentsOfURL:movieURL];

This will give you the data of the movie, and from there, you can write that data to the documents directory. Hope that helps!

Answer 2

try this it worked for me:

On save action:

 NSURL* videoURL = [mMediaInfoDictionary objectForKey:UIImagePickerControllerMediaURL];
            NSString* videoPath=[videoURL path];
            UISaveVideoAtPathToSavedPhotosAlbum(videoPath, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);

call back method

- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];

    if (error != nil) {
        NSLog(@"Error: %@", error);
    }

}