That’s weird. Why’d they do that. They should make a separate entry for mov and associate it with video/quicktime
Guess it might be something related to https://stackoverflow.com/a/44785870 but like they point out, mov is a container format that can contain one of many different codecs used. And isn’t mp4 just a container too? Referring to mov files as video/mp4 seems straight up incorrect to me
If you look at a .mov file and a .mp4 file in a ISO bmff viewer, you'll generally see the only difference is the ftyp box is different ("qt " for .mov, "isom" for .mp4). Indeed, if you ask ffmpeg to make a .mov file and .mp4 file of the same content, literally the only difference is the contents of the "ftyp" box, every other byte is identical.
Not quite. There are some boxes acceptable in one but not the other. Strings inside MOOV are length-prefixed in MOV but null-terminated in ISOBMFF. There are a variety of differences like that.
The set of codecs allowed, also differs between the two.