added rtp-receiver.sh script

bin/rtp-receiver.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+gst-launch-1.0 udpsrc port=46000 buffer-size=65536 ! \
+    application/x-rtp,media=audio,payload=127,clock-rate=48000,encoding-name=L16,channels=2 ! \
+    rtpjitterbuffer latency=200 ! \
+    rtpL16depay ! \
+    audioconvert ! \
+    autoaudiosink