lib-python.2.5.plat-irix5.readcd.py Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jython Show documentation
Show all versions of jython Show documentation
Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
# Class interface to the CD module.
import cd, CD
class Error(Exception):
pass
class _Stop(Exception):
pass
def _doatime(self, cb_type, data):
if ((data[0] * 60) + data[1]) * 75 + data[2] > self.end:
## print 'done with list entry', repr(self.listindex)
raise _Stop
func, arg = self.callbacks[cb_type]
if func:
func(arg, cb_type, data)
def _dopnum(self, cb_type, data):
if data > self.end:
## print 'done with list entry', repr(self.listindex)
raise _Stop
func, arg = self.callbacks[cb_type]
if func:
func(arg, cb_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
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.cachestatus()
if track < self.status[5] or track > self.status[6]:
raise Error, 'track number out of range'
if not self.trackinfo:
self.cacheinfo()
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.cachestatus()
if not start:
start = 1
if not end:
end = self.status[6]
if type(end) == type(0):
if end < self.status[5] or end > self.status[6]:
raise Error, 'range error'
else:
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'
if type(start) == type(0):
if start < self.status[5] or start > self.status[6]:
raise Error, 'range error'
if len(self.list) > 0:
s, e = self.list[-1]
if type(e) == type(0):
if start == e+1:
start = s
del self.list[-1]
else:
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'
self.list.append((start, end))
def settracks(self, list):
self.list = []
for track in list:
self.appendtrack(track)
def setcallback(self, cb_type, func, arg):
if cb_type < 0 or cb_type >= 8:
raise Error, 'type out of range'
self.callbacks[cb_type] = (func, arg)
if self.playing:
start, end = self.list[self.listindex]
if type(end) == type(0):
if cb_type != CD.PNUM:
self.parser.setcallback(cb_type, func, arg)
else:
if cb_type != CD.ATIME:
self.parser.setcallback(cb_type, func, arg)
def removecallback(self, cb_type):
if cb_type < 0 or cb_type >= 8:
raise Error, 'type out of range'
self.callbacks[cb_type] = (None, None)
if self.playing:
start, end = self.list[self.listindex]
if type(end) == type(0):
if cb_type != CD.PNUM:
self.parser.removecallback(cb_type)
else:
if cb_type != CD.ATIME:
self.parser.removecallback(cb_type)
def gettrackinfo(self, *arg):
if not self.status:
self.cachestatus()
if not self.trackinfo:
self.cacheinfo()
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 cacheinfo(self):
if not self.status:
self.cachestatus()
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))
def cachestatus(self):
self.status = self.player.getstatus()
if self.status[0] == CD.NODISC:
self.status = None
raise Error, 'no disc in player'
def getstatus(self):
return self.player.getstatus()
def play(self):
if not self.status:
self.cachestatus()
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)
try:
while 1:
if not self.playing:
if self.listindex >= len(self.list):
return
start, end = self.list[self.listindex]
if type(start) == type(0):
dummy = self.player.seektrack(
start)
else:
min, sec, frame = start
dummy = self.player.seek(
min, sec, frame)
if type(end) == type(0):
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)
else:
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)
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
finally:
self.playing = 0