PHAsset video get exifInfo (metadata)

Question

I want to get Exif information for a video file.

Below is the code to get Exif for image but it doesn't seems to work for videos.

[[PHImageManager defaultManager] requestImageDataForAsset:photoAsset
                                              options:reqOptions
                                        resultHandler:
     ^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) {
         CIImage* ciImage = [CIImage imageWithData:imageData];
         DLog(@"Metadata : %@", ciImage.properties);
     }];

Is there any way to get the exif without writing the file into disk ?

Muhammad Waqas Khalid · Answer 1 · 2016-10-17T15:29:29.043

0

Please check for the documentation.

You can get the information for the video:

 - (PHImageRequestID)requestPlayerItemForVideo:(PHAsset *)asset 
                                  options:(PHVideoRequestOptions *)options 
                            resultHandler:(void (^)(AVPlayerItem *playerItem, NSDictionary *info))resultHandler;

Try using Utility for metadata: https://github.com/zakkhoyt/PHAsset-Utility

Hope it helps. :)

edited Oct 17 '16 at 15:29

answered Oct 17 '16 at 14:34

Muhammad Waqas Khalid

107
6

Thanks for your answer. The ExifInfo is present in playerItem ? . As I cannot find much information in Info Dictionary – Ekra Oct 17 '16 at 15:05
1

There's a helper utility, you can have the metadata using it: https://github.com/zakkhoyt/PHAsset-Utility – Muhammad Waqas Khalid Oct 17 '16 at 15:38
The helper utility method requestMetadataWithCompletionBlock doesn't work for vidoes – Ekra Oct 18 '16 at 06:55

score 0 · Accepted Answer · answered Oct 18 '16 at 13:00

To get metadata for video file use below API where the information is in AVAsset object.

    - (PHImageRequestID)requestAVAssetForVideo:(PHAsset *)asset options:(nullable PHVideoRequestOptions *)options 
                resultHandler:(void (^)(AVAsset *__nullable asset, AVAudioMix *__nullable audioMix, NSDictionary *__nullable info))resultHandler;

PHAsset video get exifInfo (metadata)

2 Answers2