Backport of "videorate/videoscale/audioresample: Ensure that the caps returned from..." into 1.16
requested to merge tpm/gst-plugins-base:backport-mr-799-into-1.16-videorate-fixate-for-real into 1.16
Backport of !799 (merged) "videorate/videoscale/audioresample: Ensure that the caps returned from...".
Commits:
- 3edf390b videorate/videoscale/audioresample: Ensure that the caps returned from fixate_caps() are actually fixated