wpesrc: fix some caps leaks using the non-GL output
Always chain up to the parent _stop() implementation as it unrefs some caps (among other things).
The documentation caps are expected to be leaked so mark them as such,
Fixes: #1409 (closed)
Always chain up to the parent _stop() implementation as it unrefs some caps (among other things).
The documentation caps are expected to be leaked so mark them as such,
Fixes: #1409 (closed)