Shotwell date/time metadata for video files

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1

I’ve compressed thousands of video files to .mp4 using handbrake. The date/time metadata shows as Jan 1, 1970, so I’ve been trying to use exiftools to copy the correct date/time metadata.

Where does Shotwell pull the date/time metadata for video files?

I’ve copied the tag “OriginalDateTime” which is the only tag in the original with the date/time, but Shotwell still shows Jan 1, 1970, even after removing and reimporting the video into Shotwell.

On the new video file, I noticed several of the tags just have 000s for the timestamp.

Thanks.

2

it’s one of if you look at the exiftool output or Xmp.video.ModificationDate for exiv2

Track Modify Date : 2020:04:23 14:49:14
Media Modify Date : 2020:04:23 14:49:14

If you run gst-discoverer-1.0 -v on one of those videos, do you get any tags shown in there?

3

No timestamp tags in gst-discoverer-1.0. exiftool does show the updated OriginalDateTime value copied from the original file.

Properties:
  Duration: 0:00:47.964000000
  Seekable: yes
  Live: no
  container #0: Quicktime
    video #1: H.264 (Main Profile)
      Stream ID: 3a939f6b56e43af25c34d06bdafa6396b1489949345e1258d1a8e1c04e0d211b/001
      Width: 1920
      Height: 1080
      Depth: 24
      Frame rate: 30000/1001
      Pixel aspect ratio: 1/1
      Interlaced: false
      Bitrate: 13895109
      Max bitrate: 13895109
    audio #2: MPEG-4 AAC
      Stream ID: 3a939f6b56e43af25c34d06bdafa6396b1489949345e1258d1a8e1c04e0d211b/002
      Language: <unknown>
      Channels: 2 (front-left, front-right)
      Sample rate: 48000
      Depth: 16
      Bitrate: 162745
      Max bitrate: 162745
4

Yeah so that is not “the correct time”. Sorry, the metadata handling on videos is very rudimentary.

5

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