Confirmed that the problem described in <a href="https://bugs.launchpad.net/openshot/+bug/505203/comments/1">duplicate bug</a> is solved by installing libavformat-extra-52.
Confirmed that the problem described in <a href="https:/ /bugs.launchpad .net/openshot/ +bug/505203/ comments/ 1">duplicate bug</a> is solved by installing libavformat- extra-52.