Adding RTPReplay

Author: Natalie Silvanovich

RTPReplay/README.md

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+# RTP Replay
+
+Have you ever wanted to replay rtpdump files in a browser? Use this script!
+
+1) Create an rtpdump file (see https://wiki.wireshark.org/rtpdump and https://webrtchacks.com/video_replay/)
+
+2) Run rtp-to-webrtc as directed: https://github.com/webrtc-rs/webrtc/tree/master/examples/examples/rtp-to-webrtc
+
+3) Run:
+
+	python3 replayer.py <yourfile.rtpdump>
+
+## Disclaimer
+
+This is not an official Google product.

RTPReplay/replayer.py

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+import sys
+import socket, time
+ 
+UDP_IP = "127.0.0.1"
+UDP_PORT = 5004
+
+sock = socket.socket(socket.AF_INET,
+                      socket.SOCK_DGRAM)
+
+f = open(sys.argv[1], 'rb')
+
+dump = f.read()
+
+
+
+ind = dump.find(b"\n")
+header = dump[0:ind]
+
+print(header)
+
+ind = ind + 4*4 + 1
+
+while ind < len(dump):
+	ind +=2
+	plen = (dump[ind] << 8) + dump[ind+1]
+	ind += 6
+	packet = dump[ind:ind+plen]
+	print(packet)
+	sock.sendto(packet, (UDP_IP, UDP_PORT))
+	ind = ind + plen
+	time.sleep(.1)