auto tagging possible?

[pasja]

I have several mp4 files, which are ok but which lack any tag info.
It means that in listings no info appears on: video length, video resolution, bit rate and fps.
Is there a possibility to auto-tag this info without manually adding or video conversion?

[Budman1]

If you are talking about the folder details listings, Windows uses its own decoding 'codec' to determine file properties. These are often missing or not accurate. Several examples are shown below. Even the same extension file type gives different reading, or lack of readings, when Windows parses this information. Variable bit rate seems to give Windows (at least my Windows 7) a hard time obtaining.

A better way to get this information, although not in a long list, is MediaInfo which has a mouseover function that can be activated in its options. If this fails to perform, as in an update, just uncheck this function then check again.


[Attachment 48333 - Click to enlarge]


[Attachment 48334 - Click to enlarge]

[pasja]

If you are talking about the folder details listings, Windows uses its own decoding 'codec' to determine file properties.

Yes, I think it is more a Windows issue. All info is in the file, as can be found in MediaInfo and in the vlc player. Just Windows does not pick it up.
Curiously, I changed the extension mp4 into mkv. The videofile still plays in good quality, but now Windows is able to retrieve the video length. For me, that is the most important parameter in a listing, so I am a little satisfied.

Possibly I used the word tag in a wrong sense. I meant only afore mentioned file details. Whereas in the file property window you can edit tags, that is not possible with these file details.

[jagabo]

Earlier versions of Windows didn't even know that MP4 files are A/V files unless you installed a Shell Extension to add that support. Windows XP, for example, has no native MP4 support. But Windows 10 has native support for the container.

[pasja]

Earlier versions of Windows didn't even know that MP4 files are A/V files unless you installed a Shell Extension to add that support. Windows XP, for example, has no native MP4 support. But Windows 10 has native support for the container.

I use W10 Pro v. 1809. Something in these particular mp4 files (downloaded from YouTube) prevented Windows for collecting this info.