There's not just a single encoded date for MP4 and MKV files. Take a look at the MediaInfo application (avoid downloading the installer, get the portable 7Z archive instead).
Every stream within a file can have an encoded date, i.e. the file overall (Encoded_Date_General), the video stream (Encoded_Date_Video), the audio stream (Encoded_Date_Audio) and so on. Usually these dates should match but they can be (vastly) different. Here's an excerpt of the MediaInfo output of one video I found on my drive:As you can see the timestamps can differ by a few seconds or can even be null (hence 1970-01-01, i.e. Epoch).
Regards
Dalai
Every stream within a file can have an encoded date, i.e. the file overall (Encoded_Date_General), the video stream (Encoded_Date_Video), the audio stream (Encoded_Date_Audio) and so on. Usually these dates should match but they can be (vastly) different. Here's an excerpt of the MediaInfo output of one video I found on my drive:
Code:
General[...]Encoded date : UTC 2015-03-16 16:24:01Tagged date : UTC 2015-03-16 16:24:01[...]VideoID : 1[...]Encoded date : UTC 1970-01-01 00:00:00Tagged date : UTC 2015-03-16 16:24:17AudioID : 2[...]Encoded date : UTC 2015-03-16 16:24:10Tagged date : UTC 2015-03-16 16:24:17Regards
Dalai
Statistics: Posted by Dalai — 2024-01-13, 18:56 UTC