Maintain libmpeg3

Hi, I need modify libmpeg3 to verify the patch "to use external libmpeg3" that is in queue to be upstream [1] . I also I want unbundle ac52 , I put source in github [2] (none modification so far ...) , and sync with Debian package as possible . None package requires libmpeg3, so seems safe to modify , is just used for cinelerra-cv [3] So may I commit some changes to libmpeg3 directly , or should I request to be co-maintainer of package first ? [1] http://lists.cinelerra-cv.org/pipermail/cinelerra/2014q2/000948.html [2] https://github.com/sergiomb2/libmpeg3 [3] https://bugzilla.rpmfusion.org/show_bug.cgi?id=118 Thanks, -- Sérgio M. B.