获取iOS视频的时间戳/位置 [英] Get Time Stamp/Location of iOS Video

问题描述

我可以使用图像选择器获取.MOV文件，但是如何找到它的拍摄位置和拍摄时间呢？

I can get the .MOV file with the Image Picker, but how can I find the location it was taken at and the time it was taken?

我的图像选择器：
-（void）imagePickerController：（UIImagePickerController *）选择器
didFinishPickingMediaWithInfo：（NSDictionary *）info {

My image picker: - (void) imagePickerController: (UIImagePickerController *) picker didFinishPickingMediaWithInfo: (NSDictionary *) info {

NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:NO completion:nil];

// Handle a movie capture
if (CFStringCompare ((__bridge_retained CFStringRef)mediaType, kUTTypeMovie, 0)
    == kCFCompareEqualTo) {

    NSString *movieFile = [[info objectForKey:
                            UIImagePickerControllerMediaURL] path];
    NSURL *movieURL = [NSURL fileURLWithPath:movieFile];

    NSLog(@"Movie File %@",movieURL);

    [self dismissViewControllerAnimated:YES completion:nil];
}
}

推荐答案

I不知道它的位置，但是您可以使用 文件属性键 以获得 NSFileCreationDate 使用 attributesOfItemAtPath：error： 。 NSDictionary fileCreationDate

I don't know about the location it was taken but you can use File Attribute Keys to get the NSFileCreationDate using attributesOfItemAtPath:error:. There is a convenience method on NSDictionary fileCreationDate

NSError *error;
NSDictionary *attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:movieFile error:&error];
if (!attributes) {
    // Use the error
}
NSDate *createdDate = [attributes fileCreationDate];

如果要访问MOV文件上的元数据，可以查看< a href = https://stackoverflow.com/questions/5287603/how-to-extract-orientation-information-from-mov-videos-created-on-the-iphone-usi> EXIF 数据，我不知道是否有一个iOS库。

If you want to access the meta-data on the MOV file you can have a look at the EXIF data, I don't know if there is a iOS library for this though.

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