Backport of "audiovisualizer: fix buffer mapping to not increase refcount" into 1.20
requested to merge tpm/gstreamer:backport-mr-2953-into-1.20-audiovisualizer-buf-mapping-fix into 1.20
Backport of !2953 (merged) "audiovisualizer: fix buffer mapping to not increase refcount".
Commits:
- 8648f5f7 audiovisualizer: fix buffer mapping to not increase refcount