Mercurial > cpython-lru_cache-weakref

annotate Lib/audiodev.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 7b9a6166281a
children eb7a62acdd1d
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rev   line source
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1 error = 'audiodev.error'
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2
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3 class Play_Audio_sgi:
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4 # Private instance variables
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5 ## if 0: access frameratelist, nchannelslist, sampwidthlist, oldparams, \
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6 ## params, config, inited_outrate, inited_width, \
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7 ## inited_nchannels, port, converter, classinited: private
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8
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9 classinited = 0
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10 frameratelist = nchannelslist = sampwidthlist = None
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11
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12 def initclass(self):
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13 import AL
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14 self.frameratelist = [
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15 (48000, AL.RATE_48000),
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16 (44100, AL.RATE_44100),
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17 (32000, AL.RATE_32000),
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18 (22050, AL.RATE_22050),
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19 (16000, AL.RATE_16000),
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20 (11025, AL.RATE_11025),
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21 ( 8000, AL.RATE_8000),
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22 ]
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23 self.nchannelslist = [
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24 (1, AL.MONO),
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25 (2, AL.STEREO),
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26 (4, AL.QUADRO),
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27 ]
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28 self.sampwidthlist = [
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29 (1, AL.SAMPLE_8),
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30 (2, AL.SAMPLE_16),
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31 (3, AL.SAMPLE_24),
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32 ]
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33 self.classinited = 1
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35 def __init__(self):
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36 import al, AL
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37 if not self.classinited:
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38 self.initclass()
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39 self.oldparams = []
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40 self.params = [AL.OUTPUT_RATE, 0]
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41 self.config = al.newconfig()
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42 self.inited_outrate = 0
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43 self.inited_width = 0
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44 self.inited_nchannels = 0
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45 self.converter = None
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46 self.port = None
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47 return
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48
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49 def __del__(self):
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50 if self.port:
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51 self.stop()
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52 if self.oldparams:
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53 import al, AL
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54 al.setparams(AL.DEFAULT_DEVICE, self.oldparams)
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55 self.oldparams = []
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56
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57 def wait(self):
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58 if not self.port:
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59 return
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60 import time
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61 while self.port.getfilled() > 0:
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62 time.sleep(0.1)
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63 self.stop()
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64
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65 def stop(self):
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66 if self.port:
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67 self.port.closeport()
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68 self.port = None
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69 if self.oldparams:
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70 import al, AL
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71 al.setparams(AL.DEFAULT_DEVICE, self.oldparams)
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72 self.oldparams = []
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73
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74 def setoutrate(self, rate):
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75 for (raw, cooked) in self.frameratelist:
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76 if rate == raw:
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77 self.params[1] = cooked
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78 self.inited_outrate = 1
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79 break
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80 else:
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81 raise error, 'bad output rate'
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82
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83 def setsampwidth(self, width):
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84 for (raw, cooked) in self.sampwidthlist:
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85 if width == raw:
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86 self.config.setwidth(cooked)
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87 self.inited_width = 1
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88 break
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89 else:
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90 if width == 0:
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91 import AL
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92 self.inited_width = 0
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93 self.config.setwidth(AL.SAMPLE_16)
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94 self.converter = self.ulaw2lin
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95 else:
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96 raise error, 'bad sample width'
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97
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98 def setnchannels(self, nchannels):
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99 for (raw, cooked) in self.nchannelslist:
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100 if nchannels == raw:
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101 self.config.setchannels(cooked)
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102 self.inited_nchannels = 1
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103 break
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104 else:
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105 raise error, 'bad # of channels'
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106
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107 def writeframes(self, data):
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108 if not (self.inited_outrate and self.inited_nchannels):
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109 raise error, 'params not specified'
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110 if not self.port:
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111 import al, AL
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112 self.port = al.openport('Python', 'w', self.config)
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113 self.oldparams = self.params[:]
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114 al.getparams(AL.DEFAULT_DEVICE, self.oldparams)
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115 al.setparams(AL.DEFAULT_DEVICE, self.params)
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116 if self.converter:
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117 data = self.converter(data)
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118 self.port.writesamps(data)
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119
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120 def getfilled(self):
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121 if self.port:
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122 return self.port.getfilled()
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123 else:
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124 return 0
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125
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126 def getfillable(self):
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127 if self.port:
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128 return self.port.getfillable()
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129 else:
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130 return self.config.getqueuesize()
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131
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132 # private methods
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133 ## if 0: access *: private
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134
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135 def ulaw2lin(self, data):
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136 import audioop
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137 return audioop.ulaw2lin(data, 2)
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138
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139 class Play_Audio_sun:
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140 ## if 0: access outrate, sampwidth, nchannels, inited_outrate, inited_width, \
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141 ## inited_nchannels, converter: private
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142
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143 def __init__(self):
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144 self.outrate = 0
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145 self.sampwidth = 0
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146 self.nchannels = 0
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147 self.inited_outrate = 0
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148 self.inited_width = 0
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149 self.inited_nchannels = 0
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parents:
diff changeset
150 self.converter = None
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
151 self.port = None
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
152 return
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
153
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
154 def __del__(self):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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155 self.stop()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
156
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
157 def setoutrate(self, rate):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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158 self.outrate = rate
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
159 self.inited_outrate = 1
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
160
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
161 def setsampwidth(self, width):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
162 self.sampwidth = width
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
163 self.inited_width = 1
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
164
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
165 def setnchannels(self, nchannels):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
166 self.nchannels = nchannels
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
167 self.inited_nchannels = 1
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
168
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
169 def writeframes(self, data):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
170 if not (self.inited_outrate and self.inited_width and self.inited_nchannels):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
171 raise error, 'params not specified'
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
172 if not self.port:
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1434
diff changeset
173 import sunaudiodev, SUNAUDIODEV
1434
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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174 self.port = sunaudiodev.open('w')
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
175 info = self.port.getinfo()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
176 info.o_sample_rate = self.outrate
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
177 info.o_channels = self.nchannels
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
178 if self.sampwidth == 0:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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179 info.o_precision = 8
2936
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
180 self.o_encoding = SUNAUDIODEV.ENCODING_ULAW
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
181 # XXX Hack, hack -- leave defaults
1434
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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182 else:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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183 info.o_precision = 8 * self.sampwidth
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
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184 info.o_encoding = SUNAUDIODEV.ENCODING_LINEAR
2936
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
185 self.port.setinfo(info)
1434
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
diff changeset
186 if self.converter:
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
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187 data = self.converter(data)
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
diff changeset
188 self.port.write(data)
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
189
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
190 def wait(self):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
191 if not self.port:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
192 return
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
193 self.port.drain()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
194 self.stop()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
195
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
diff changeset
196 def stop(self):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
197 if self.port:
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
diff changeset
198 self.port.flush()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
199 self.port.close()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
200 self.port = None
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
201
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
202 def getfilled(self):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
203 if self.port:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
204 return self.port.obufcount()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
205 else:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
206 return 0
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
207
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
208 def getfillable(self):
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
209 return BUFFERSIZE - self.getfilled()
46c217337bde Interface to audio hardware for SGI and Sun.
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parents:
diff changeset
210
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
211 def AudioDev():
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
212 try:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
213 import al
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
214 except ImportError:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
215 try:
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
216 import sunaudiodev
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
217 return Play_Audio_sun()
46c217337bde Interface to audio hardware for SGI and Sun.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
218 except ImportError:
1893
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
219 try:
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
220 import Audio_mac
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
221 except ImportError:
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
222 raise error, 'no audio device'
2936
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
223 else:
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
224 return Audio_mac.Play_Audio_mac()
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
225 else:
0970ebd31536 rather ugly temporary hacks to make it work in grail & restricted mode
Guido van Rossum <guido@python.org>
parents: 1893
diff changeset
226 return Play_Audio_sgi()
1893
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
227
4710
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
228 def test(fn = None):
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
229 import sys
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
230 if sys.argv[1:]:
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
231 fn = sys.argv[1]
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
232 else:
7b9a6166281a Added support for 4-channel on SGI.
Guido van Rossum <guido@python.org>
parents: 4078
diff changeset
233 fn = 'f:just samples:just.aif'
1893
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
234 import aifc
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
235 af = aifc.open(fn, 'r')
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
236 print fn, af.getparams()
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
237 p = AudioDev()
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
238 p.setoutrate(af.getframerate())
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
239 p.setsampwidth(af.getsampwidth())
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
240 p.setnchannels(af.getnchannels())
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
241 BUFSIZ = af.getframerate()/af.getsampwidth()/af.getnchannels()
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
242 while 1:
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
243 data = af.readframes(BUFSIZ)
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
244 if not data: break
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
245 print len(data)
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
246 p.writeframes(data)
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
247 p.wait()
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
248
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
249 if __name__ == '__main__':
aba51621244e audiodev.py: Mac port.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
250 test()