Initial revision

1 files changed, 230 insertions, 0 deletions

diff --git a/Lib/irix5/readcd.py b/Lib/irix5/readcd.py
new file mode 100755
index 0000000..11ac87b
--- /dev/null
+++ b/Lib/irix5/readcd.py
@@ -0,0 +1,230 @@
+# Class interface to the CD module.
+
+import cd, CD
+
+Error = 'Readcd.Error'
+_Stop = 'Readcd.Stop'
+
+def _doatime(self, type, data):
+	if ((data[0] * 60) + data[1]) * 75 + data[2] > self.end:
+		print 'done with list entry',`self.listindex`
+		raise _Stop
+	func, arg = self.callbacks[type]
+	if func:
+		func(arg, type, data)
+
+def _dopnum(self, type, data):
+	if data > self.end:
+		print 'done with list entry',`self.listindex`
+		raise _Stop
+	func, arg = self.callbacks[type]
+	if func:
+		func(arg, type, data)
+
+class Readcd():
+	def init(self, *arg):
+		if len(arg) == 0:
+			self.player = cd.open()
+		elif len(arg) == 1:
+			self.player = cd.open(arg[0])
+		elif len(arg) == 2:
+			self.player = cd.open(arg[0], arg[1])
+		else:
+			raise Error, 'bad init call'
+		self.list = []
+		self.callbacks = [(None, None)] * 8
+		self.parser = cd.createparser()
+		self.playing = 0
+		self.end = 0
+		self.status = None
+		self.trackinfo = None
+		return self
+
+	def eject(self):
+		self.player.eject()
+		self.list = []
+		self.end = 0
+		self.listindex = 0
+		self.status = None
+		self.trackinfo = None
+		if self.playing:
+			print 'stop playing from eject'
+			raise _Stop
+
+	def pmsf2msf(self, track, min, sec, frame):
+		if not self.status:
+			self.status = self.player.getstatus()
+		if not self.trackinfo:
+			dummy = self.gettrackinfo()
+		if track < self.status[5] or track > self.status[6]:
+			raise Error, 'track number out of range'
+		start, total = self.trackinfo[track]
+		start = ((start[0] * 60) + start[1]) * 75 + start[2]
+		total = ((total[0] * 60) + total[1]) * 75 + total[2]
+		block = ((min * 60) + sec) * 75 + frame
+		if block > total:
+			raise Error, 'out of range'
+		block = start + block
+		min, block = divmod(block, 75*60)
+		sec, frame = divmod(block, 75)
+		return min, sec, frame
+
+	def reset(self):
+		self.list = []
+
+	def appendtrack(self, track):
+		self.appendstretch(track, track)
+				
+	def appendstretch(self, start, end):
+		if not self.status:
+			self.status = self.player.getstatus()
+		if not start:
+			start = 1
+		if not end:
+			end = self.status[6]
+		try:
+			l = len(end)
+			if l == 4:
+				prog, min, sec, frame = end
+				if prog < self.status[5] or prog > self.status[6]:
+					raise Error, 'range error'
+				end = self.pmsf2msf(prog, min, sec, frame)
+			elif l <> 3:
+				raise Error, 'syntax error'
+		except TypeError:
+			if end < self.status[5] or end > self.status[6]:
+				raise Error, 'range error'
+		try:
+			l = len(start)
+			if l == 4:
+				prog, min, sec, frame = start
+				if prog < self.status[5] or prog > self.status[6]:
+					raise Error, 'range error'
+				start = self.pmsf2msf(prog, min, sec, frame)
+			elif l <> 3:
+				raise Error, 'syntax error'
+		except TypeError:
+			if start < self.status[5] or start > self.status[6]:
+				raise Error, 'range error'
+			if len(self.list) > 0:
+				s, e = self.list[-1]
+				try:
+					l = len(e)
+				except TypeError:
+					if start == e+1:
+						start = s
+						del self.list[-1]
+		self.list.append((start, end))
+
+	def settracks(self, list):
+		self.list = []
+		for track in list:
+			self.appendtrack(track)
+
+	def setcallback(self, type, func, arg):
+		if type < 0 or type >= 8:
+			raise Error, 'type out of range'
+		self.callbacks[type] = (func, arg)
+		if self.playing:
+			try:
+				l = len(end)
+				if type <> CD.ATIME:
+					self.parser.setcallback(type, func, arg)
+			except TypeError:
+				if type <> CD.PNUM:
+					self.parser.setcallback(type, func, arg)
+
+	def removecallback(self, type):
+		if type < 0 or type >= 8:
+			raise Error, 'type out of range'
+		self.callbacks[type] = (None, None)
+		if self.playing:
+			try:
+				l = len(end)
+				if type <> CD.ATIME:
+					self.parser.removecallback(type)
+			except TypeError:
+				if type <> CD.PNUM:
+					self.parser.removecallback(type)
+
+	def gettrackinfo(self, *arg):
+		if not self.status:
+			self.status = self.player.getstatus()
+		if not self.trackinfo:
+			self.trackinfo = []
+			for i in range(self.status[5]):
+				self.trackinfo.append(None)
+			for i in range(self.status[5], self.status[6]+1):
+				self.trackinfo.append(self.player.gettrackinfo(i))
+		if len(arg) == 0:
+			return self.trackinfo[self.status[5]:self.status[6]+1]
+		result = []
+		for i in arg:
+			if i < self.status[5] or i > self.status[6]:
+				raise Error, 'range error'
+			result.append(self.trackinfo[i])
+		return result
+
+	def getstatus(self):
+		if not self.status:
+			status = self.player.getstatus()
+			if status[0] <> CD.NODISC:
+				self.status = status
+		else:
+			status = self.status
+		return status
+
+	def play(self):
+		if not self.status:
+			self.status = self.player.getstatus()
+		size = self.player.bestreadsize()
+		self.listindex = 0
+		self.playing = 0
+		for i in range(8):
+			func, arg = self.callbacks[i]
+			if func:
+				self.parser.setcallback(i, func, arg)
+			else:
+				self.parser.removecallback(i)
+		if len(self.list) == 0:
+			for i in range(self.status[5], self.status[6]+1):
+				self.appendtrack(i)
+		while 1:
+			if not self.playing:
+				if self.listindex >= len(self.list):
+					return
+				start, end = self.list[self.listindex]
+				print 'starting with',`(start, end)`
+				try:
+					min, sec, frame = start
+					dummy = self.player.seek(min, sec, frame)
+				except TypeError:
+					dummy = self.player.seektrack(start)
+				try:
+					min, sec, frame = end
+					self.parser.setcallback(CD.ATIME, _doatime, self)
+					self.end = (min * 60 + sec) * 75 + frame
+					func, arg = self.callbacks[CD.PNUM]
+					if func:
+						self.parser.setcallback(CD.PNUM, func, arg)
+					else:
+						self.parser.removecallback(CD.PNUM)
+				except TypeError:
+					self.parser.setcallback(CD.PNUM, _dopnum, self)
+					self.end = end
+					func, arg = self.callbacks[CD.ATIME]
+					if func:
+						self.parser.setcallback(CD.ATIME, func, arg)
+					else:
+						self.parser.removecallback(CD.ATIME)
+				self.playing = 1
+			data = self.player.readda(size)
+			if data == '':
+				self.playing = 0
+				self.listindex = self.listindex + 1
+				continue
+			try:
+				self.parser.parseframe(data)
+			except _Stop:
+				self.playing = 0
+				self.listindex = self.listindex + 1