When a task cannot be partitioned because of sequential constraints, the application of more effort has no effect on the schedule.
Frederick Brooks wrote about this problem in The Mythical Man-Month: Note that most apps know how to look into image metadata, so setting the filesystem dates is not as important as for video files.Īfter a certain point, adding more developers to a software project does not get the project done any faster. Related, to update the file system time for image files to match the meta data: > exiftool "-DateTimeOriginal>FileModifyDate" MyPicture.jpg To modify multiple files I used wild-cards on the filename, like *.mp4 to update all mp4 files in the current directory. So to update the filesystem date to match the metadata CreateDate I used this command: > exiftool "-CreateDate>FileModifyDate" MyVideo.mp4 ModifyDate : 2013:09:14 00:52:38įrom the above the CreateDate & ModifyDate are the internal meta data, and the FileModifyDate etc are the filesystem. I found the ExifTool FAQ #24 which shows how to query for the times: > exiftool -time:all -a -G0:1 -s MyVideo.mp4 The first trick is to figure out what the "tags" are for the internal metadata and the file system. The biggest challenge was that most of the documentation was on how to modify the internal meta data, but I wanted to "copy" from the meta data to the filesystem timestamps. By using the ExifTool cmd-line tool I was able to change them all at once. Using the ExifToolGUI I could fix them one at a time. 3gpp video files whose file "create" and "last modified" filesystem dates did not match the meta data inside of the file, and this was causing problems because many apps use the filesystem dates when sorting video files (rather than using the metadata inside the video files).
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