net/onvif: implement ONVIF metadata processing elements

- RTP payloader and depayloader

- Aggregator to pair per-frame metadata with media frames

- Overlay to render detected shapes

1 files changed, 3 insertions, 0 deletions

diff --git a/net/onvif/build.rs b/net/onvif/build.rs
new file mode 100644
index 000000000..cda12e57e
--- /dev/null
+++ b/net/onvif/build.rs
@@ -0,0 +1,3 @@
+fn main() {
+    gst_plugin_version_helper::info()
+}