Remove the SGI demos. These were all ancient and nobody cared enough.

24 files changed, 0 insertions, 1117 deletions

diff --git a/Demo/sgi/README b/Demo/sgi/README
deleted file mode 100644
index 3ef80d2..0000000
--- a/Demo/sgi/README
+++ /dev/null
@@ -1,22 +0,0 @@
-Demonstrations of Python that use various features of the Silicon
-Graphics IRIS machines.
-
-al		Demonstrations of the audio capabilities of the
-		Indigo. Require the built-in module 'al'.  One program
-		also needs the build-in module 'fl' (the FORMS
-		library by Mark Overmars.)
-
-cd		Demonstrations of the CD-ROM player's audio interface,
-		built-in module 'cd'.
-
-flp		Demonstrations of using the 'flp' standard module,
-		which enables you to quickly create forms using the
-		'fl' built-in module (available if you use the FORMS
-		library by Mark Overmars).
-
-gl		Demonstrations of the Graphics Library (GL).
-		Require the built-in module 'gl'.
-
-sv		Demonstrations of the Indigo Video module.
-		Requires the built-in module 'sv'.  See also the
-		following directory.
diff --git a/Demo/sgi/al/README b/Demo/sgi/al/README
deleted file mode 100644
index fba67b7..0000000
--- a/Demo/sgi/al/README
+++ /dev/null
@@ -1,15 +0,0 @@
-This directory contains programs using the "al" interface, which gives
-access to the most important parts of the SGI Audio Library for the
-Indigo and 4D/35.
-
-alwatch.py		Watch changes in device settings
-broadcast.py		Broadcast audio using UDP packets
-cmpaf.py		Compare different audio compression schemes (uses fl)
-intercom.py		2-way communication with another host (uses fl)
-playaiff.py		Play an AIFF file (as output by recordaiff)
-playback.py		Play raw audio data read from stdin
-playold.py		Play an audio file recorded by the old 4D/25 audio
-radio.py		Listen to UDP packets sent by broadcast.py
-rec_play.py		Repeatedly record and play back a sample
-record.py		Record raw audio data to stdout
-unicast.py		Like broadcast but sends to one host
diff --git a/Demo/sgi/al/alwatch.py b/Demo/sgi/al/alwatch.py
deleted file mode 100755
index da747d4..0000000
--- a/Demo/sgi/al/alwatch.py
+++ /dev/null
@@ -1,33 +0,0 @@
-import time
-import al, AL
-import string
-
-dev = AL.DEFAULT_DEVICE
-
-source_name = ['line', 'microphone', 'digital']
-
-params = al.queryparams(dev)
-for i in range(1, len(params), 2):
-	params[i] = -1
-while 1:
-	time.sleep(0.1)
-	old = params[:]
-	al.getparams(dev, params)
-	if params <> old:
-		for i in range(0, len(params), 2):
-			if params[i+1] <> old[i+1]:
-				name = al.getname(dev, params[i])
-				if params[i] == AL.INPUT_SOURCE:
-					if 0 <= old[i+1] < len(source_name):
-						oldval = source_name[old[i+1]]
-					else:
-						oldval = ''
-					newval = source_name[params[i+1]]
-				else:
-					oldval = `old[i+1]`
-					newval = `params[i+1]`
-				print string.ljust(name, 25),
-				print '(' + string.rjust(oldval, 10) + ')',
-				print '-->',
-				print string.rjust(newval, 10)
-		print
diff --git a/Demo/sgi/al/broadcast.py b/Demo/sgi/al/broadcast.py
deleted file mode 100755
index 9d88dac..0000000
--- a/Demo/sgi/al/broadcast.py
+++ /dev/null
@@ -1,27 +0,0 @@
-#! /usr/bin/env 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 = 5555
-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)
diff --git a/Demo/sgi/al/cmpaf.py b/Demo/sgi/al/cmpaf.py
deleted file mode 100755
index 6b91e30..0000000
--- a/Demo/sgi/al/cmpaf.py
+++ /dev/null
@@ -1,64 +0,0 @@
-# Compare different audio compression schemes.
-#
-# This copies mono audio data from the input port to the output port,
-# and puts up a window with 4 toggle buttons:
-#
-# uLAW       : convert the data to uLAW and back
-# ADPCM      : convert the data to ADPCM and back
-# Difference : make only the difference between the converted and the
-#              original data audible
-# Exit       : quit from the program
-
-import fl
-import FL
-import flp
-import al
-import AL
-import audioop
-import sys
-
-class Cmpaf:
-	def __init__(self):
-		parsetree = flp.parse_form('cmpaf_form','form')
-		flp.create_full_form(self, parsetree)
-		c = al.newconfig()
-		c.setchannels(AL.MONO)
-		c.setqueuesize(1800)
-		self.iport = al.openport('cmpaf','r', c)
-		self.oport = al.openport('cmpaf','w', c)
-		self.do_adpcm = self.do_ulaw = self.do_diff = 0
-		self.acstate = None
-		self.form.show_form(FL.PLACE_SIZE, 1, 'compare audio formats')
-
-	def run(self):
-		while 1:
-			olddata = data = self.iport.readsamps(600)
-			if self.do_ulaw:
-				data = audioop.lin2ulaw(data, 2)
-				data = audioop.ulaw2lin(data, 2)
-			if self.do_adpcm:
-				data, nacstate = audioop.lin2adpcm(data, 2, \
-					  self.acstate)
-				data, dummy = audioop.adpcm2lin(data, 2, \
-					  self.acstate)
-				self.acstate = nacstate
-			if self.do_diff:
-				olddata = audioop.mul(olddata, 2, -1)
-				data = audioop.add(olddata, data, 2)
-			self.oport.writesamps(data)
-			fl.check_forms()
-
-	def cb_exit(self, *args):
-		sys.exit(0)
-
-	def cb_adpcm(self, obj, val):
-		self.do_adpcm = obj.get_button()
-
-	def cb_ulaw(self, obj, val):
-		self.do_ulaw = obj.get_button()
-
-	def cb_diff(self, obj, val):
-		self.do_diff = obj.get_button()
-
-cmpaf = Cmpaf()
-cmpaf.run()
diff --git a/Demo/sgi/al/cmpaf_form.fd b/Demo/sgi/al/cmpaf_form.fd
deleted file mode 100755
index 6667405..0000000
--- a/Demo/sgi/al/cmpaf_form.fd
+++ /dev/null
@@ -1,90 +0,0 @@
-Magic: 12321
-
-Internal Form Definition File
-    (do not change)
-
-Number of forms: 1
-
-=============== FORM ===============
-Name: form
-Width: 230.000000
-Height: 80.000000
-Number of Objects: 5
-
---------------------
-class: 1
-type: 1
-box: 0.000000 0.000000 230.000000 80.000000
-boxtype: 1
-colors: 47 47
-alignment: 4
-style: 0
-size: 11.000000
-lcol: 0
-label: 
-name: 
-callback: 
-argument: 
-
---------------------
-class: 12
-type: 1
-box: 10.000000 40.000000 100.000000 30.000000
-boxtype: 1
-colors: 39 3
-alignment: 4
-style: 0
-size: 11.000000
-lcol: 0
-label: uLAW
-name: ulawbutton
-callback: cb_ulaw
-argument: 0
-
---------------------
-class: 12
-type: 1
-box: 10.000000 10.000000 100.000000 30.000000
-boxtype: 1
-colors: 39 3
-alignment: 4
-style: 0
-size: 11.000000
-lcol: 0
-label: ADPCM
-name: adpcm_button
-callback: cb_adpcm
-argument: 0
-
---------------------
-class: 11
-type: 0
-box: 170.000000 10.000000 50.000000 20.000000
-boxtype: 1
-colors: 47 47
-alignment: 4
-style: 0
-size: 11.000000
-lcol: 0
-label: EXIT
-name: exit_button
-callback: cb_exit
-argument: 0
-
---------------------
-class: 12
-type: 1
-box: 120.000000 40.000000 100.000000 30.000000
-boxtype: 1
-colors: 39 3
-alignment: 4
-style: 0
-size: 11.000000
-lcol: 0
-label: Difference
-name: diffbutton
-callback: cb_diff
-argument: 0
-
-==============================
-create_the_forms
diff --git a/Demo/sgi/al/intercom.py b/Demo/sgi/al/intercom.py
deleted file mode 100755
index fd983d3..0000000
--- a/Demo/sgi/al/intercom.py
+++ /dev/null
@@ -1,212 +0,0 @@
-# intercom -- use mike and headset to *talk* to a person on another host.
-# For SGI 4D/35 or Indigo running IRIX 4.0.
-# Uses 16 bit sampling at 16000 samples/sec, or 32000 bytes/sec,
-# tranmitted in 32 1000-byte UDP packets.  (In each direction!)
-#
-# usage:
-#	intercom hostname	- start talking to person on other host
-#	intercom -r hostname	- called remotely to do the setup
-
-from names import *
-import sys, time, posix, gl, fl, FL, al, AL, getopt, rand
-from socket import *
-
-# UDP port numbers used (one for each direction!)
-PORT1 = 51042
-PORT2 = PORT1+1
-
-# Figure out the user name
-try:
-	user = posix.environ['LOGNAME']
-except:
-	user = posix.environ['USER']
-
-# Debug flags (Implemented as a list; non-empty means debugging is on)
-debug = []
-
-def main():
-	remote = 0
-	opts, args = getopt.getopt(sys.argv[1:], 'rd')
-	for opt, arg in opts:
-		if opt == '-r': remote = 1
-		elif opt == '-d': debug.append(opt)
-	if len(args) <> 1:
-		msg = 'usage: intercom [-d] [-r] hostname'
-		msg = msg + ' (-r is for internal use only!)\n'
-		sys.stderr.write(msg)
-		sys.exit(2)
-	if remote:
-		server(args[0])
-	else:
-		client(args[0])
-
-def client(hostname):
-	print 'client starting'
-	cmd = 'rsh ' + hostname + ' "cd ' + AUDIODIR
-	cmd = cmd + '; DISPLAY=:0; export DISPLAY'
-	cmd = cmd + '; ' + PYTHON + ' intercom.py -r '
-	for flag in debug: cmd = cmd + flag + ' '
-	cmd = cmd + gethostname()
-	cmd = cmd + '"'
-	if debug: print cmd
-	pipe = posix.popen(cmd, 'r')
-	ack = 0
-	nak = 0
-	while 1:
-		line = pipe.readline()
-		if not line: break
-		sys.stdout.write('remote: ' + line)
-		if line == 'NAK\n':
-			nak = 1
-			break
-		elif line == 'ACK\n':
-			ack = 1
-			break
-	if nak:
-		print 'Remote user doesn\'t want to talk to you.'
-		return
-	if not ack:
-		print 'No acknowledgement (remote side crashed?).'
-		return
-	#
-	print 'Ready...'
-	#
-	s = socket(AF_INET, SOCK_DGRAM)
-	s.bind('', PORT2)
-	#
-	otheraddr = gethostbyname(hostname), PORT1
-	try:
-		try:
-			ioloop(s, otheraddr)
-		except KeyboardInterrupt:
-			log('client got intr')
-		except error:
-			log('client got error')
-	finally:
-		s.sendto('', otheraddr)
-		log('client finished sending empty packet to server')
-	#
-	log('client exit')
-	print 'Done.'
-
-def server(hostname):
-	print 'server starting'
-	sys.stdout.flush()
-	# 
-	if not remotedialog():
-		print 'NAK'
-		return
-	#
-	print 'ACK'
-	#
-	s = socket(AF_INET, SOCK_DGRAM)
-	s.bind('', PORT1)
-	#
-	# Close std{in,out,err} so rsh will exit; reopen them as dummies
-	#
-	sys.stdin.close()
-	sys.stdin = open('/dev/null', 'r')
-	sys.stdout.close()
-	sys.stdout = open('/dev/null', 'w')
-	sys.stderr.close()
-	if debug:
-		sys.stderr = open('/tmp/intercom.err', 'a')
-	else:
-		sys.stderr = open('/dev/null', 'w')
-	#
-	ioloop(s, (gethostbyname(hostname), PORT2))
-	log('server exit')
-	sys.exit(0)
-
-def remotedialog():
-	gl.foreground()
-	gl.ringbell()
-	m1 = user + ' wants to talk to you over the audio channel.'
-	m2 = 'If it\'s OK, put on your headset and click Yes.'
-	m3 = 'If you\'re too busy, click No.'
-	return fl.show_question(m1, m2, m3)
-
-def ioloop(s, otheraddr):
-	#
-	dev = AL.DEFAULT_DEVICE
-	params = al.queryparams(dev)
-	al.getparams(dev, params)
-	time.sleep(1)
-	saveparams = params[:]
-	for i in range(0, len(params), 2):
-		if params[i] in (AL.INPUT_RATE, AL.OUTPUT_RATE):
-			params[i+1] = AL.RATE_16000
-		elif params[i] == AL.INPUT_SOURCE:
-			params[i+1] = AL.INPUT_MIC
-	try:
-		al.setparams(dev, params)
-		ioloop1(s, otheraddr)
-	finally:
-		al.setparams(dev, saveparams)
-
-def ioloop1(s, otheraddr):
-	#
-	# Watch out! data is in bytes, but the port counts in samples,
-	# which are two bytes each (for 16-bit samples).
-	# Luckily, we use mono, else it would be worse (2 samples/frame...)
-	#
-	SAMPSPERBUF = 500
-	BYTESPERSAMP = 2 # AL.SAMPLE_16
-	BUFSIZE = BYTESPERSAMP*SAMPSPERBUF
-	QSIZE = 4*SAMPSPERBUF
-	#
-	config = al.newconfig()
-	config.setqueuesize(QSIZE)
-	config.setwidth(AL.SAMPLE_16)
-	config.setchannels(AL.MONO)
-	#
-	pid = posix.fork()
-	if pid:
-		# Parent -- speaker/headphones handler
-		log('parent started')
-		spkr = al.openport('spkr', 'w', config)
-		while 1:
-			data = s.recv(BUFSIZE)
-			if len(data) == 0:
-				# EOF packet
-				log('parent got empty packet; killing child')
-				posix.kill(pid, 15)
-				return
-			# Discard whole packet if we are too much behind
-			if spkr.getfillable() > len(data) / BYTESPERSAMP:
-				if len(debug) >= 2:
-					log('parent Q full; dropping packet')
-				spkr.writesamps(data)
-	else:
-		# Child -- microphone handler
-		log('child started')
-		try:
-		    try:
-			    mike = al.openport('mike', 'r', config)
-			    # Sleep a while to let the other side get started
-			    time.sleep(1)
-			    # Drain the queue before starting to read
-			    data = mike.readsamps(mike.getfilled())
-			    # Loop, sending packets from the mike to the net
-			    while 1:
-				    data = mike.readsamps(SAMPSPERBUF)
-				    s.sendto(data, otheraddr)
-		    except KeyboardInterrupt:
-			    log('child got interrupt; exiting')
-			    posix._exit(0)
-		    except error:
-			    log('child got error; exiting')
-			    posix._exit(1)
-		finally:
-			log('child got unexpected error; leaving w/ traceback')
-
-def log(msg):
-	if not debug: return
-	if type(msg) <> type(''):
-		msg = `msg`
-	
-	f = open('/tmp/intercom.log', 'a')
-	f.write(`sys.argv` + ' ' + `posix.getpid()` + ': ' + msg + '\n')
-	f.close()
-
-main()
diff --git a/Demo/sgi/al/listen.py b/Demo/sgi/al/listen.py
deleted file mode 100755
index 83f850a..0000000
--- a/Demo/sgi/al/listen.py
+++ /dev/null
@@ -1,34 +0,0 @@
-# Listen to the input on host argv[1].
-
-import sys, al, AL, posix
-
-BUFSIZE = 2000
-QSIZE = 4000
-
-def main():
-	if len(sys.argv) <> 2:
-		sys.stderr.write('usage: ' + sys.argv[0] + ' hostname\n')
-		sys.exit(2)
-	hostname = sys.argv[1]
-	cmd = 'exec rsh </dev/null ' + hostname + \
-		' "cd /ufs/guido/mm/demo/audio; ' + \
-		'exec /ufs/guido/bin/sgi/python record.py"'
-	pipe = posix.popen(cmd, 'r')
-	config = al.newconfig()
-	config.setchannels(AL.MONO)
-	config.setqueuesize(QSIZE)
-	port = al.openport('', 'w', config)
-	while 1:
-		data = pipe.read(BUFSIZE)
-		if not data:
-			sts = pipe.close()
-			sys.stderr.write(sys.argv[0] + ': end of data\n')
-			if sts: sys.stderr.write('rsh exit status '+`sts`+'\n')
-			sys.exit(1)
-		port.writesamps(data)
-		del data
-
-try:
-	main()
-except KeyboardInterrupt:
-	sys.exit(1)
diff --git a/Demo/sgi/al/names.py b/Demo/sgi/al/names.py
deleted file mode 100755
index 5a8f538..0000000
--- a/Demo/sgi/al/names.py
+++ /dev/null
@@ -1,14 +0,0 @@
-import sys
-
-# My home directory/
-GUIDO = '/ufs/guido/'
-
-# Hack sys.path so AL can be found
-LIB = GUIDO + 'lib/python'
-if LIB not in sys.path: sys.path.insert(0, LIB)
-
-# Python binary to be used on remote machine
-PYTHON = GUIDO + 'bin/sgi/python'
-
-# Directory where the programs live
-AUDIODIR = GUIDO + 'src/python/demo/sgi/al'
diff --git a/Demo/sgi/al/playaiff.py b/Demo/sgi/al/playaiff.py
deleted file mode 100755
index 22120dc..0000000
--- a/Demo/sgi/al/playaiff.py
+++ /dev/null
@@ -1,54 +0,0 @@
-import aiff
-import al
-import sys
-import time
-
-def main():
-	v = 1
-	c = al.newconfig()
-	nchannels = c.getchannels()
-	nsampframes = 0 # ???
-	sampwidth = c.getwidth()
-	samprate = 0.0 # unknown
-	filename = sys.argv[1]
-	f = open(filename, 'r')
-	type, totalsize = aiff.read_chunk_header(f)
-	if type <> 'FORM':
-		raise aiff.Error, 'FORM chunk expected at start of file'
-	aiff.read_form_chunk(f)
-	while 1:
-		try:
-			type, size = aiff.read_chunk_header(f)
-		except EOFError:
-			break
-		if v: print 'header:', `type`, size
-		if type == 'COMM':
-			nchannels, nsampframes, sampwidth, samprate = \
-				aiff.read_comm_chunk(f)
-			if v: print nchannels, nsampframes, sampwidth, samprate
-		elif type == 'SSND':
-			offset, blocksize = aiff.read_ssnd_chunk(f)
-			if v: print offset, blocksize
-			data = f.read(size-8)
-			if size%2: void = f.read(1)
-			p = makeport(nchannels, sampwidth, samprate)
-			play(p, data, offset, blocksize)
-		elif type in aiff.skiplist:
-			aiff.skip_chunk(f, size)
-		else:
-			raise aiff.Error, 'bad chunk type ' + type
-
-def makeport(nchannels, sampwidth, samprate):
-	c = al.newconfig()
-	c.setchannels(nchannels)
-	c.setwidth(sampwidth/8)
-	# can't set the rate...
-	p = al.openport('', 'w', c)
-	return p
-
-def play(p, data, offset, blocksize):
-	data = data[offset:]
-	p.writesamps(data)
-	while p.getfilled() > 0: time.sleep(0.01)
-
-main()
diff --git a/Demo/sgi/al/playback.py b/Demo/sgi/al/playback.py
deleted file mode 100755
index 967f746..0000000
--- a/Demo/sgi/al/playback.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# Read mono 16bit samples from stdin and write them to the audio device.
-# Assume the sampling rate is compatible.
-# Use a small queue size to minimize delays.
-
-import al, sys
-import AL
-
-BUFSIZE = 2000
-QSIZE = 4000
-
-def main():
-	c = al.newconfig()
-	c.setchannels(AL.MONO)
-	c.setqueuesize(QSIZE)
-	p = al.openport('', 'w', c)
-	while 1:
-		data = sys.stdin.read(BUFSIZE)
-		p.writesamps(data)
-
-try:
-	main()
-except KeyboardInterrupt:
-	sys.exit(1)
diff --git a/Demo/sgi/al/playold.py b/Demo/sgi/al/playold.py
deleted file mode 100755
index 9792c16..0000000
--- a/Demo/sgi/al/playold.py
+++ /dev/null
@@ -1,51 +0,0 @@
-# Play old style sound files (Guido's private format)
-
-import al, sys, time
-import AL
-
-BUFSIZE = 8000
-
-def main():
-	if len(sys.argv) < 2:
-		f = sys.stdin
-		filename = sys.argv[0]
-	else:
-		if len(sys.argv) <> 2:
-			sys.stderr.write('usage: ' + \
-					 sys.argv[0] + ' filename\n')
-			sys.exit(2)
-		filename = sys.argv[1]
-		f = open(filename, 'r')
-	#
-	magic = f.read(4)
-	extra = ''
-	if magic == '0008':
-		rate = 8000
-	elif magic == '0016':
-		rate = 16000
-	elif magic == '0032':
-		rate = 32000
-	else:
-		sys.stderr.write('no magic header; assuming 8k samples/sec.\n')
-		rate = 8000
-		extra = magic
-	#
-	pv = [AL.OUTPUT_RATE, rate]
-	al.setparams(AL.DEFAULT_DEVICE, pv)
-	c = al.newconfig()
-	c.setchannels(AL.MONO)
-	c.setwidth(AL.SAMPLE_8)
-	port = al.openport(filename, 'w', c)
-	if extra:
-		port.writesamps(extra)
-	while 1:
-		buf = f.read(BUFSIZE)
-		if not buf: break
-		port.writesamps(buf)
-	while port.getfilled() > 0:
-		time.sleep(0.1)
-
-try:
-	main()
-except KeyboardInterrupt:
-	sys.exit(1)
diff --git a/Demo/sgi/al/radio.py b/Demo/sgi/al/radio.py
deleted file mode 100755
index b9d30d2..0000000
--- a/Demo/sgi/al/radio.py
+++ /dev/null
@@ -1,21 +0,0 @@
-#! /usr/bin/env python
-
-# radio [port]
-#
-# Receive audio packets broadcast by "broadcast.py" on another SGI machine.
-# Use apanel to set the output sampling rate to match that of the broadcast.
-
-import sys, al
-from socket import *
-
-port = 5555
-if sys.argv[1:]: port = eval(sys.argv[1])
-
-s = socket(AF_INET, SOCK_DGRAM)
-s.bind('', port)
-
-p = al.openport('radio', 'w')
-
-while 1:
-	data = s.recv(1400)
-	p.writesamps(data)
diff --git a/Demo/sgi/al/rec_play.py b/Demo/sgi/al/rec_play.py
deleted file mode 100755
index 693c96e..0000000
--- a/Demo/sgi/al/rec_play.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# records an AIFF sample and plays it
-# infinity number of times.
-#
-
-import time
-import al
-
-def recordit () :
-	p = al.openport('hello', 'r')
-	print 'recording...'
-	buf = p.readsamps(500000)
-	print 'done.'
-	p.closeport()
-	
-	return buf
-
-def playit (buf) :
-	p = al.openport('hello', 'w')
-	print 'playing...'
-	p.writesamps(buf)
-	while p.getfilled() > 0:
-		time.sleep(0.01)
-	print 'done.'
-	p.closeport()
-
-while 1 :
-	playit (recordit ())
diff --git a/Demo/sgi/al/record.py b/Demo/sgi/al/record.py
deleted file mode 100755
index e5c0f5b..0000000
--- a/Demo/sgi/al/record.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# Record mono 16bits samples from the audio device and send them to stdout.
-# Assume the sampling rate is compatible.
-# Use a small queue size to minimize delays.
-
-import al, sys
-import AL
-
-BUFSIZE = 2000
-QSIZE = 4000
-
-def main():
-	c = al.newconfig()
-	c.setchannels(AL.MONO)
-	c.setqueuesize(QSIZE)
-	p = al.openport('', 'r', c)
-	while 1:
-		data = p.readsamps(BUFSIZE)
-		sys.stdout.write(data)
-
-try:
-	main()
-except KeyboardInterrupt:
-	sys.exit(1)
diff --git a/Demo/sgi/al/unicast.py b/Demo/sgi/al/unicast.py
deleted file mode 100755
index 0d537b1..0000000
--- a/Demo/sgi/al/unicast.py
+++ /dev/null
@@ -1,26 +0,0 @@
-#! /usr/bin/env python
-
-# unicast host [port]
-#
-# Similar to "broadcast.py" but sends to a specific host only;
-# use "radio.py" on the designated host to receive.
-# This is less stressful on other hosts on the same ethernet segment
-# if you need to send to one host only.
-
-import sys, al
-from socket import *
-
-host = sys.argv[1]
-
-port = 5555
-if sys.argv[2:]: port = eval(sys.argv[1])
-
-s = socket(AF_INET, SOCK_DGRAM)
-
-p = al.openport('unicast', 'r')
-
-address = host, port
-while 1:
-	# 700 samples equals 1400 bytes, or about the max packet size!
-	data = p.readsamps(700)
-	s.sendto(data, address)
diff --git a/Demo/sgi/al/x.py b/Demo/sgi/al/x.py
deleted file mode 100755
index ecc12d8..0000000
--- a/Demo/sgi/al/x.py
+++ /dev/null
@@ -1,12 +0,0 @@
-# Demonstrate that rsh exits when the remote end closes std{in,out,err}.
-# rsh voorn exec /ufs/guido/bin/sgi/python /ufs/guido/mm/demo/audio/x.py
-
-print 'hoi!'
-import sys
-sys.stdin.close()
-sys.stdout.close()
-sys.stderr.close()
-import time
-time.sleep(5)
-sys.stdout = open('@', 'w')
-sys.stdout.write('Hello\n')
diff --git a/Demo/sgi/audio/README b/Demo/sgi/audio/README
deleted file mode 100644
index 02a3701..0000000
--- a/Demo/sgi/audio/README
+++ /dev/null
@@ -1,8 +0,0 @@
-Programs that demonstrate the use of the audio device on the SGI 4D/25.
-These require the built-in module 'audio'.
-
-XXX This hardware is already obsolete; see ../al for examples of audio
-XXX on the Indigo and 4D/35.
-
-play		Read a sound sample from a file and play it through the
-		speaker.  Options to set volume, sampling rate etc.
diff --git a/Demo/sgi/audio/play.py b/Demo/sgi/audio/play.py
deleted file mode 100755
index 68a6a31..0000000
--- a/Demo/sgi/audio/play.py
+++ /dev/null
@@ -1,75 +0,0 @@
-#! /usr/bin/env python
-
-import sys
-import audio
-
-import string
-import getopt
-import auds
-
-debug = []
-
-DEF_RATE = 3
-
-def main():
-	#
-	gain = 100
-	rate = 0
-	starter = audio.write
-	stopper = 0
-	#
-	optlist, args = getopt.getopt(sys.argv[1:], 'adg:r:')
-	#
-	for optname, optarg in optlist:
-		if 0:
-			pass
-		elif optname == '-d':
-			debug.append(1)
-		elif optname == '-g':
-			gain = string.atoi(optarg)
-			if not (0 < gain < 256):
-				raise optarg.error, '-g gain out of range'
-		elif optname == '-r':
-			rate = string.atoi(optarg)
-			if not (1 <= rate <= 3):
-				raise optarg.error, '-r rate out of range'
-		elif optname == '-a':
-			starter = audio.start_playing
-			stopper = audio.wait_playing
-	#
-	audio.setoutgain(gain)
-	audio.setrate(rate)
-	#
-	if not args:
-		play(starter, rate, auds.loadfp(sys.stdin))
-	else:
-		real_stopper = 0
-		for file in args:
-			if real_stopper:
-				real_stopper()
-			play(starter, rate, auds.load(file))
-			real_stopper = stopper
-
-def play(starter, rate, data):
-	magic = data[:4]
-	if magic == '0008':
-		mrate = 3
-	elif magic == '0016':
-		mrate = 2
-	elif magic == '0032':
-		mrate = 1
-	else:
-		mrate = 0
-	if mrate:
-		data = data[4:]
-	else:
-		mrate = DEF_RATE
-	if not rate: rate = mrate
-	audio.setrate(rate)
-	starter(data)
-
-try:
-	main()
-finally:
-	audio.setoutgain(0)
-	audio.done()
diff --git a/Demo/sgi/sv/README b/Demo/sgi/sv/README
deleted file mode 100644
index 38e5140..0000000
--- a/Demo/sgi/sv/README
+++ /dev/null
@@ -1,23 +0,0 @@
-Demo programs for the SGI Video library for the Indigo (IRIX 4.0.5).
-
-These are more-or-less literal translations of the C programs from the
-Indigo Video Programming Guide, by Sjoerd Mullender, with some changes
-by Guido.
-
-Note that none of the example programs save any data to a file,
-although this would be easy to do (e.g. individual grabbed frames
-could be written as SGI image files using the imgfile module).
-
-We have written a Python program to record live video to file (within
-the limits of the Indigo video board), and a suite of programs to
-manipulate and display such files.  At the moment we don't distribute
-these programs, since the file format is, eh..., weird, to say the
-least.  However, if you are really interested we can mail you the
-source.
-
-Also note that we haven't tried using video *output* yet.
-
-simpleinput.py		Live video in a resizable window
-rgbgrab.py		Grab still frames
-contcapt.py		Continuous capturing
-burstcapt.py		Burst capturing
diff --git a/Demo/sgi/sv/burstcapt.py b/Demo/sgi/sv/burstcapt.py
deleted file mode 100755
index ce1e579..0000000
--- a/Demo/sgi/sv/burstcapt.py
+++ /dev/null
@@ -1,52 +0,0 @@
-import sys
-import sv, SV
-import gl, GL, DEVICE
-
-def main():
-	format = SV.RGB8_FRAMES
-	requestedwidth = SV.PAL_XMAX
-	queuesize = 30
-	if sys.argv[1:]:
-		queuesize = eval(sys.argv[1])
-
-	v = sv.OpenVideo()
-	svci = (format, requestedwidth, 0, queuesize, 0)
-
-	go = raw_input('Press return to capture ' + `queuesize` + ' frames: ')
-	result = v.CaptureBurst(svci)
-	svci, buffer, bitvec = result
-##	svci, buffer = result # XXX If bit vector not yet implemented
-
-	print 'Captured', svci[3], 'frames, i.e.', len(buffer)/1024, 'K bytes'
-
-	w, h = svci[1:3]
-	framesize = w * h
-
-	gl.prefposition(300, 300+w-1, 100, 100+h-1)
-	gl.foreground()
-	win = gl.winopen('Burst Capture')
-	gl.RGBmode()
-	gl.gconfig()
-	gl.qdevice(DEVICE.LEFTMOUSE)
-	gl.qdevice(DEVICE.ESCKEY)
-
-	print 'Click left mouse for next frame'
-
-	for i in range(svci[3]):
-		inverted_frame = sv.RGB8toRGB32(1, \
-			  buffer[i*framesize:(i+1)*framesize], w, h)
-		gl.lrectwrite(0, 0, w-1, h-1, inverted_frame)
-		while 1:
-			dev, val = gl.qread()
-			if dev == DEVICE.LEFTMOUSE and val == 1:
-				break
-			if dev == DEVICE.REDRAW:
-				gl.lrectwrite(0, 0, w-1, h-1, inverted_frame)
-			if dev == DEVICE.ESCKEY:
-				v.CloseVideo()
-				gl.winclose(win)
-				return
-	v.CloseVideo()
-	gl.winclose(win)
-
-main()
diff --git a/Demo/sgi/sv/contcapt.py b/Demo/sgi/sv/contcapt.py
deleted file mode 100755
index 6c0a000..0000000
--- a/Demo/sgi/sv/contcapt.py
+++ /dev/null
@@ -1,107 +0,0 @@
-import sys
-import sv, SV
-import gl, GL, DEVICE
-
-def main():
-	format = SV.RGB8_FRAMES
-	framerate = 25
-	queuesize = 16
-	samplingrate = 2
-
-	v = sv.OpenVideo()
-	# Determine maximum window size based on signal standard
-	param = [SV.BROADCAST, 0]
-	v.GetParam(param)
-	if param[1] == SV.PAL:
-		width = SV.PAL_XMAX
-		height = SV.PAL_YMAX
-		framefreq = 25
-	else:
-		width = SV.NTSC_XMAX
-		height = SV.NTSC_YMAX
-		framefreq = 30
-
-	# Allow resizing window if capturing RGB frames, which can be scaled
-	if format == SV.RGB8_FRAMES:
-		gl.keepaspect(width, height)
-		gl.maxsize(width, height)
-		gl.stepunit(8, 6)
-		gl.minsize(120, 90)
-	else:
-		if format == SV.YUV411_FRAMES_AND_BLANKING_BUFFER:
-			height = height + SV.BLANKING_BUFFER_SIZE
-		gl.prefposition(300, 300+width-1, 100, 100+height-1)
-
-	# Open the window
-	gl.foreground()
-	win = gl.winopen('Continuous Capture')
-	gl.RGBmode()
-	gl.gconfig()
-	if format == SV.RGB8_FRAMES:
-		width, height = gl.getsize()
-		gl.pixmode(GL.PM_SIZE, 8)
-	else:
-		gl.pixmode(GL.PM_SIZE, 32)
-
-	svci = (format, width, height, queuesize, samplingrate)
-	[svci]
-
-	svci = v.InitContinuousCapture(svci)
-	width, height = svci[1:3]
-	[svci]
-
-	hz = gl.getgdesc(GL.GD_TIMERHZ)
-	gl.noise(DEVICE.TIMER0, hz / framerate)
-	gl.qdevice(DEVICE.TIMER0)
-	gl.qdevice(DEVICE.WINQUIT)
-	gl.qdevice(DEVICE.WINSHUT)
-	gl.qdevice(DEVICE.ESCKEY)
-
-	ndisplayed = 0
-	lastfieldID = 0
-
-	while 1:
-		dev, val = gl.qread()
-		if dev == DEVICE.REDRAW:
-			oldw = width
-			oldh = height
-			width, height = gl.getsize()
-			if oldw != width or oldh != height:
-				v.EndContinuousCapture()
-				gl.viewport(0, width-1, 0, height-1)
-				svci = (svci[0], width, height) + svci[3:]
-				svci = v.InitContinuousCapture(svci)
-				width, height = svci[1:3]
-				[svci]
-				if ndisplayed:
-					print 'lost',
-					print fieldID/(svci[4]*2) - ndisplayed,
-					print 'frames'
-				ndisplayed = 0
-		elif dev == DEVICE.TIMER0:
-			try:
-				captureData, fieldID = v.GetCaptureData()
-			except sv.error, val:
-				if val <> 'no data available':
-					print val
-				continue
-			if fieldID - lastfieldID <> 2*samplingrate:
-				print lastfieldID, fieldID
-			lastfieldID = fieldID
-			if svci[0] == SV.RGB8_FRAMES:
-				rgbbuf = captureData.InterleaveFields(1)
-			else:
-				rgbbuf = captureData.YUVtoRGB(1)
-			captureData.UnlockCaptureData()
-			gl.lrectwrite(0, 0, width-1, height-1, rgbbuf)
-			ndisplayed = ndisplayed + 1
-		elif dev in (DEVICE.ESCKEY, DEVICE.WINQUIT, DEVICE.WINSHUT):
-			v.EndContinuousCapture()
-			v.CloseVideo()
-			gl.winclose(win)
-			print fieldID, ndisplayed, svci[4]
-			print 'lost', fieldID/(svci[4]*2) - ndisplayed,
-			print 'frames'
-			return
-
-main()
diff --git a/Demo/sgi/sv/rgbgrab.py b/Demo/sgi/sv/rgbgrab.py
deleted file mode 100755
index 8013a53..0000000
--- a/Demo/sgi/sv/rgbgrab.py
+++ /dev/null
@@ -1,81 +0,0 @@
-import sys
-import sv, SV
-import gl, GL, DEVICE
-import time
-
-def main():
-	v = sv.OpenVideo()
-	# Determine maximum window size based on signal standard
-	param = [SV.BROADCAST, 0]
-	v.GetParam(param)
-	if param[1] == SV.PAL:
-		width = SV.PAL_XMAX
-		height = SV.PAL_YMAX
-	elif param[1] == SV.NTSC:
-		width = SV.NTSC_XMAX
-		height = SV.NTSC_YMAX
-	else:
-		print 'Unknown video standard', param[1]
-		sys.exit(1)
-
-	# Initially all windows are half size
-	grabwidth, grabheight = width/2, height/2
-
-	# Open still window
-	gl.foreground()
-	gl.prefsize(grabwidth, grabheight)
-	still_win = gl.winopen('Grabbed frame')
-	gl.keepaspect(width, height)
-	gl.maxsize(width, height)
-	gl.winconstraints()
-	gl.RGBmode()
-	gl.gconfig()
-	gl.clear()
-	gl.pixmode(GL.PM_SIZE, 8)
-
-	# Open live window
-	gl.foreground()
-	gl.prefsize(grabwidth, grabheight)
-	live_win = gl.winopen('Live video')
-	gl.keepaspect(width, height)
-	gl.maxsize(width, height)
-	gl.winconstraints()
-
-	# Bind live video
-	v.SetSize(gl.getsize())
-	v.BindGLWindow(live_win, SV.IN_REPLACE)
-
-	print 'Use leftmouse to grab frame'
-
-	gl.qdevice(DEVICE.LEFTMOUSE)
-	gl.qdevice(DEVICE.WINQUIT)
-	gl.qdevice(DEVICE.WINSHUT)
-	gl.qdevice(DEVICE.ESCKEY)
-	frame = None
-	while 1:
-		dev, val = gl.qread()
-		if dev == DEVICE.LEFTMOUSE and val == 0:
-			w, h, fields = v.CaptureOneFrame(SV.RGB8_FRAMES, \
-				grabwidth, grabheight)
-			frame = sv.InterleaveFields(1, fields, w, h)
-			gl.winset(still_win)
-			gl.lrectwrite(0, 0, w - 1, h - 1, frame)
-			gl.winset(live_win)
-		if dev in (DEVICE.ESCKEY, DEVICE.WINQUIT, DEVICE.WINSHUT):
-			v.CloseVideo()
-			gl.winclose(live_win)
-			gl.winclose(still_win)
-			break
-		if dev == DEVICE.REDRAW and val == still_win:
-			gl.winset(still_win)
-			gl.reshapeviewport()
-			gl.clear()
-			grabwidth, grabheight = gl.getsize()
-			if frame:
-				gl.lrectwrite(0, 0, w - 1, h - 1, frame)
-			gl.winset(live_win)
-		if dev == DEVICE.REDRAW and val == live_win:
-			v.SetSize(gl.getsize())
-			v.BindGLWindow(live_win, SV.IN_REPLACE)
-
-main()
diff --git a/Demo/sgi/sv/simpleinput.py b/Demo/sgi/sv/simpleinput.py
deleted file mode 100755
index 97b75fa..0000000
--- a/Demo/sgi/sv/simpleinput.py
+++ /dev/null
@@ -1,22 +0,0 @@
-import sv, SV
-import gl, DEVICE
-
-def main():
-	gl.foreground()
-	gl.prefsize(SV.PAL_XMAX, SV.PAL_YMAX)
-	win = gl.winopen('video test')
-	v = sv.OpenVideo()
-	params = [SV.VIDEO_MODE, SV.COMP, SV.BROADCAST, SV.PAL]
-	v.SetParam(params)
-	v.BindGLWindow(win, SV.IN_REPLACE)
-	gl.qdevice(DEVICE.ESCKEY)
-	gl.qdevice(DEVICE.WINQUIT)
-	gl.qdevice(DEVICE.WINSHUT)
-	while 1:
-		dev, val = gl.qread()
-		if dev in (DEVICE.ESCKEY, DEVICE.WINSHUT, DEVICE.WINQUIT):
-			v.CloseVideo()
-			gl.winclose(win)
-			return
-
-main()