Initial revision

Demo/sgi/al/broadcast.py

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+#! /ufs/guido/bin/sgi/python
+
+# broadcast [port]
+#
+# Broadcast audio input on the network as UDP packets;
+# they can be received on any SGI machine with "radio.py".
+# This uses the input sampling rate, input source etc. set by apanel.
+# It uses the default sample width and #channels (16 bit/sample stereo).
+# (This is 192,000 Bytes at a sampling speed of 48 kHz, or ~137
+# packets/second -- use with caution!!!)
+
+import sys, al
+from socket import *
+
+port = 54321
+if sys.argv[1:]: port = eval(sys.argv[1])
+
+s = socket(AF_INET, SOCK_DGRAM)
+s.allowbroadcast(1)
+
+p = al.openport('broadcast', 'r')
+
+address = '<broadcast>', port
+while 1:
+	# 700 samples equals 1400 bytes, or about the max packet size!
+	data = p.readsamps(700)
+	s.sendto(data, address)