Package: file
Version: 1:5.35-4
Severity: normal

Dear Maintainer,

I have an mp4 video which gives me:

$ file video.mp4
video.mp4:          ISO Media, MPEG-4 (.MP4) for SonyPSP

it's clearly a video, and video apps recognize it as a video

However:

$ file -i video.mp4
video.mp4:          audio/mp4; charset=binary

the mime type is incorrectly reported as audio!

(nautilus correctly report the mime type as video/mp4)

The first characters:

$ xxd video.mp4
00000000: 0000 001c 6674 7970 4d53 4e56 015a 0070  ....ftypMSNV.Z.p
etc. etc.


I think it must be fixed rapidly, because the apps that rely on the magic 
number won't play it as a video.


-- System Information:
Debian Release: 10.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/12 CPU cores)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), 
LANGUAGE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libmagic1 depends on:
ii  libc6         2.28-10
ii  libmagic-mgc  1:5.35-4
ii  zlib1g        1:1.2.11.dfsg-1

libmagic1 recommends no packages.

Versions of packages libmagic1 suggests:
ii  file  1:5.35-4

Versions of packages file depends on:
ii  libc6   2.28-10
ii  zlib1g  1:1.2.11.dfsg-1

-- no debconf information

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