videorate: EOS and GAP handling fixes

Submitted by Andreas Frisch @fraxinas

Link to original bug (#772559)

Description

Created attachment 337149
videorate: fix EOS handling when segment stop is unset

videorate only drops GAP events instead of using the opportunity to fill until the start of the gap.

videorate doesn't handle EOS correctly when there is no segment stop set.

patches follow

Patch 337149, "videorate: fix EOS handling when segment stop is unset":
0001-videorate-fix-EOS-handling-when-segment-stop-is-unse.patch