Nevcairiel/LAVFilters — pull request #6 by Underground78 (2013-09-08 19:00:27+00:00)
Title: LAV Splitter: Exhibits MKV attachments through IDSMResourceBag interface.

This commit enables seeing and saving MKV attachments in MPC-HC using Gabest interface.

I'm not sure you will be interested but I think it's better to propose that for upstream integration just in case.