libavfilter dependancy cannot be filled by libavfilter-extra6

[Luke Renaud]

The amd64 version (and possibly others) of the libffmpegthumbnailer4v5 package (2.1.1-0.1build1) incorrectly states that it has a dependency for libavfilter6 but not libavfilter-extra6. This disallows users from installing libavfilter-extra6 alongside this package when it should otherwise be acceptable.

Interestingly, this problem appears to be only in the deb package itself, and not in the source for said package. Currently this problem is readily resolved by simply pulling the source package and rebuilding with no modifications.

System Information:
Description: Ubuntu 17.10
Release: 17.10

Version Information:
libffmpegthumbnailer4v5:
  Installed: 2.1.1-0.1build1
  Candidate: 2.1.1-0.1build1
  Version table:
 *** 2.1.1-0.1build1 500
        500 http://us.archive.ubuntu.com/ubuntu artful/universe amd64 Packages
        100 /var/lib/dpkg/status

Expected Behavior:
Aptitude/Apt should allow for libavfilter-extra6 to fulfill the libavfilter6 dependency requirement for libffmpegthumbnailer4v5.

Current Behavior:
libffmpegthumbnailer4v5 depends exclusively upon libavfilter6 in the deb package but not a package built without modification using `apt source libffmpegthumbnailer4v5`

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Helio Neto (remiariro)]

As of 2018-04-17, this is still present in 18.04 beta.

[Helio Neto (remiariro)]

Still present in 18.04 final release.