Mercurial > cpython-lru_cache-weakref

annotate Lib/irix6/readcd.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents 6ce61f212c3e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4964
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Guido van Rossum <guido@python.org>
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1 # Class interface to the CD module.
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2
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3 import cd, CD
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4
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5 Error = 'Readcd.Error'
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6 _Stop = 'Readcd.Stop'
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7
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8 def _doatime(self, cb_type, data):
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9 if ((data[0] * 60) + data[1]) * 75 + data[2] > self.end:
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10 ## print 'done with list entry',`self.listindex`
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11 raise _Stop
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12 func, arg = self.callbacks[cb_type]
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13 if func:
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14 func(arg, cb_type, data)
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15
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16 def _dopnum(self, cb_type, data):
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17 if data > self.end:
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18 ## print 'done with list entry',`self.listindex`
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19 raise _Stop
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20 func, arg = self.callbacks[cb_type]
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21 if func:
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22 func(arg, cb_type, data)
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23
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24 class Readcd:
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25 def __init__(self, *arg):
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26 if len(arg) == 0:
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27 self.player = cd.open()
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28 elif len(arg) == 1:
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29 self.player = cd.open(arg[0])
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30 elif len(arg) == 2:
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31 self.player = cd.open(arg[0], arg[1])
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32 else:
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33 raise Error, 'bad __init__ call'
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34 self.list = []
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35 self.callbacks = [(None, None)] * 8
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36 self.parser = cd.createparser()
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37 self.playing = 0
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38 self.end = 0
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39 self.status = None
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40 self.trackinfo = None
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41
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42 def eject(self):
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43 self.player.eject()
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44 self.list = []
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45 self.end = 0
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46 self.listindex = 0
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47 self.status = None
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48 self.trackinfo = None
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49 if self.playing:
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50 ## print 'stop playing from eject'
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51 raise _Stop
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52
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53 def pmsf2msf(self, track, min, sec, frame):
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54 if not self.status:
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55 self.cachestatus()
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56 if track < self.status[5] or track > self.status[6]:
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57 raise Error, 'track number out of range'
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58 if not self.trackinfo:
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59 self.cacheinfo()
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60 start, total = self.trackinfo[track]
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61 start = ((start[0] * 60) + start[1]) * 75 + start[2]
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62 total = ((total[0] * 60) + total[1]) * 75 + total[2]
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63 block = ((min * 60) + sec) * 75 + frame
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64 if block > total:
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65 raise Error, 'out of range'
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66 block = start + block
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67 min, block = divmod(block, 75*60)
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68 sec, frame = divmod(block, 75)
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69 return min, sec, frame
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70
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71 def reset(self):
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72 self.list = []
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73
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74 def appendtrack(self, track):
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75 self.appendstretch(track, track)
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76
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77 def appendstretch(self, start, end):
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78 if not self.status:
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79 self.cachestatus()
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80 if not start:
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81 start = 1
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82 if not end:
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83 end = self.status[6]
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84 if type(end) == type(0):
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85 if end < self.status[5] or end > self.status[6]:
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86 raise Error, 'range error'
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87 else:
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88 l = len(end)
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89 if l == 4:
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90 prog, min, sec, frame = end
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91 if prog < self.status[5] or prog > self.status[6]:
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92 raise Error, 'range error'
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93 end = self.pmsf2msf(prog, min, sec, frame)
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94 elif l <> 3:
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95 raise Error, 'syntax error'
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96 if type(start) == type(0):
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97 if start < self.status[5] or start > self.status[6]:
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98 raise Error, 'range error'
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99 if len(self.list) > 0:
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100 s, e = self.list[-1]
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101 if type(e) == type(0):
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102 if start == e+1:
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103 start = s
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104 del self.list[-1]
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105 else:
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106 l = len(start)
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107 if l == 4:
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108 prog, min, sec, frame = start
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109 if prog < self.status[5] or prog > self.status[6]:
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110 raise Error, 'range error'
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111 start = self.pmsf2msf(prog, min, sec, frame)
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112 elif l <> 3:
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113 raise Error, 'syntax error'
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114 self.list.append((start, end))
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115
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116 def settracks(self, list):
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117 self.list = []
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118 for track in list:
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119 self.appendtrack(track)
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120
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121 def setcallback(self, cb_type, func, arg):
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122 if cb_type < 0 or cb_type >= 8:
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123 raise Error, 'type out of range'
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124 self.callbacks[cb_type] = (func, arg)
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125 if self.playing:
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126 start, end = self.list[self.listindex]
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127 if type(end) == type(0):
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128 if cb_type <> CD.PNUM:
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129 self.parser.setcallback(cb_type, func, arg)
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130 else:
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131 if cb_type <> CD.ATIME:
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132 self.parser.setcallback(cb_type, func, arg)
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133
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134 def removecallback(self, cb_type):
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135 if cb_type < 0 or cb_type >= 8:
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136 raise Error, 'type out of range'
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137 self.callbacks[cb_type] = (None, None)
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138 if self.playing:
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139 start, end = self.list[self.listindex]
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140 if type(end) == type(0):
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141 if cb_type <> CD.PNUM:
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142 self.parser.removecallback(cb_type)
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143 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
144 if cb_type <> CD.ATIME:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
145 self.parser.removecallback(cb_type)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
146
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
147 def gettrackinfo(self, *arg):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
148 if not self.status:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
149 self.cachestatus()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
150 if not self.trackinfo:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
151 self.cacheinfo()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
152 if len(arg) == 0:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 return self.trackinfo[self.status[5]:self.status[6]+1]
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
154 result = []
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
155 for i in arg:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 if i < self.status[5] or i > self.status[6]:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
157 raise Error, 'range error'
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
158 result.append(self.trackinfo[i])
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 return result
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
160
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 def cacheinfo(self):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 if not self.status:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
163 self.cachestatus()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 self.trackinfo = []
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
165 for i in range(self.status[5]):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
166 self.trackinfo.append(None)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
167 for i in range(self.status[5], self.status[6]+1):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
168 self.trackinfo.append(self.player.gettrackinfo(i))
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
169
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
170 def cachestatus(self):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
171 self.status = self.player.getstatus()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
172 if self.status[0] == CD.NODISC:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
173 self.status = None
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
174 raise Error, 'no disc in player'
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
175
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
176 def getstatus(self):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
177 return self.player.getstatus()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
178
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
179 def play(self):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
180 if not self.status:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
181 self.cachestatus()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
182 size = self.player.bestreadsize()
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
183 self.listindex = 0
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 self.playing = 0
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 for i in range(8):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
186 func, arg = self.callbacks[i]
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
187 if func:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
188 self.parser.setcallback(i, func, arg)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
190 self.parser.removecallback(i)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 if len(self.list) == 0:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
192 for i in range(self.status[5], self.status[6]+1):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 self.appendtrack(i)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
194 try:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
195 while 1:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
196 if not self.playing:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 if self.listindex >= len(self.list):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 return
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
199 start, end = self.list[self.listindex]
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
200 if type(start) == type(0):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
201 dummy = self.player.seektrack(
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
202 start)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
203 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
204 min, sec, frame = start
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
205 dummy = self.player.seek(
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 min, sec, frame)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
207 if type(end) == type(0):
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
208 self.parser.setcallback(
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
209 CD.PNUM, _dopnum, self)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 self.end = end
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 func, arg = \
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
212 self.callbacks[CD.ATIME]
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 if func:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 self.parser.setcallback(CD.ATIME, func, arg)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
216 self.parser.removecallback(CD.ATIME)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
217 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
218 min, sec, frame = end
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
219 self.parser.setcallback(
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
220 CD.ATIME, _doatime,
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 self)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 self.end = (min * 60 + sec) * \
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
223 75 + frame
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 func, arg = \
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
225 self.callbacks[CD.PNUM]
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 if func:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 self.parser.setcallback(CD.PNUM, func, arg)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
228 else:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
229 self.parser.removecallback(CD.PNUM)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 self.playing = 1
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
231 data = self.player.readda(size)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
232 if data == '':
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 self.playing = 0
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
234 self.listindex = self.listindex + 1
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
235 continue
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
236 try:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
237 self.parser.parseframe(data)
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
238 except _Stop:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
239 self.playing = 0
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 self.listindex = self.listindex + 1
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 finally:
6ce61f212c3e Irix 6 specific files -- thanks Sjoerd!
Guido van Rossum <guido@python.org>
parents:
diff changeset
242 self.playing = 0