從iOS上的mov文件中提取元數據

Question

我想知道是否可以從iOS上的mov文件中提取元數據。

元我與在線提取了：

content-type   application/mp4 
creation-date   2016-09-02T08:56:21Z 
date     2016-09-02T08:56:23Z 
dcterms:created   2016-09-02T08:56:21Z 
dcterms:modified  2016-09-02T08:56:23Z 
file name    IMG_0144.mov 
file size    4190689 
last-modified   2016-09-02T08:56:23Z 
last-save-date   2016-09-02T08:56:23Z 
meta:creation-date  2016-09-02T08:56:21Z 
meta:save-date   2016-09-02T08:56:23Z 
modified    2016-09-02T08:56:23Z 
tiff:imagelength  1080 
tiff:imagewidth   1920 
xmpdm:audiosamplerate 600 
xmpdm:duration   1.88 

Answer 1

在didFinishPickingMediaWithInfo

寫，

NSLog(@"meta data : %@",info); 

，你會得到所有的元數據字典中的控制檯。

例如，

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

     NSLog(@"meta data : %@",info); 

     // other code for picking media 
    }