Replace libmp4v2 dependency

[Maia-Everett]

Since libmp4v2 is MPL-licensed, easytag cannot legally linked with it: MPL is a GPL-incompatible license. The program will need to be ported to another API for reading and writing MP4 tags, such as GStreamer or libavformat.

[stsquad]

It's a shame we don't have enough source history to contact people to add a linking exception to the license. Anyway patches are as always welcome. I don't intend to do anything myself as it's not a problem purely from the source code perspective. I'll merge a patch if someone provides one though.

[Maia-Everett]

Here is a patch replacing libmp4v2 with taglib. It handles only the basic tags, though.

http://paste.ubuntu.com/621883/

[amigadave]

Thanks for the patch, I merged a modified version in the upstream development repository:

http://git.gnome.org/browse/easytag/commit/?id=186439606a8459febb31fdd3631b0ea6a911eb74