Use video/mp4 for extension mp4

markov2 / perl5-MIME-Types

Definition of MIME types

http://perl.overmeer.net/CPAN

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Use video/mp4 for extension mp4 #5

Closed Rikkuru closed 3 years ago

Rikkuru commented 3 years ago

mimeTypeOf('mp4') returns 'application/mp4'

But as I understand according to https://tools.ietf.org/html/rfc4337#section-3.4 'application/mp4' is only used "if the file contains neither visual nor audio presentations"

When we don't know the content of the file it is better to use 'video/mp4' "for all other files, including those that have MPEG-J, etc., in addition to video or audio streams"

markov2 commented 3 years ago

I think you mean https://tools.ietf.org/html/rfc4337#section-2

The situation is quite unclear for mp4. In general, creating an mime-type based on a extension is simply a guess. But I do agree with you: video/mp4 is more generic. I have created a new category of manual patches :-(