diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Lib/audiodev.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/audiodev.py Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,260 @@ +"""Classes for manipulating audio devices (currently only for Sun and SGI)""" +from warnings import warnpy3k +warnpy3k("the audiodev module has been removed in Python 3.0", stacklevel=2) +del warnpy3k + +__all__ = ["error","AudioDev"] + +class error(Exception): + pass + +class Play_Audio_sgi: + # Private instance variables +## if 0: access frameratelist, nchannelslist, sampwidthlist, oldparams, \ +## params, config, inited_outrate, inited_width, \ +## inited_nchannels, port, converter, classinited: private + + classinited = 0 + frameratelist = nchannelslist = sampwidthlist = None + + def initclass(self): + import AL + self.frameratelist = [ + (48000, AL.RATE_48000), + (44100, AL.RATE_44100), + (32000, AL.RATE_32000), + (22050, AL.RATE_22050), + (16000, AL.RATE_16000), + (11025, AL.RATE_11025), + ( 8000, AL.RATE_8000), + ] + self.nchannelslist = [ + (1, AL.MONO), + (2, AL.STEREO), + (4, AL.QUADRO), + ] + self.sampwidthlist = [ + (1, AL.SAMPLE_8), + (2, AL.SAMPLE_16), + (3, AL.SAMPLE_24), + ] + self.classinited = 1 + + def __init__(self): + import al, AL + if not self.classinited: + self.initclass() + self.oldparams = [] + self.params = [AL.OUTPUT_RATE, 0] + self.config = al.newconfig() + self.inited_outrate = 0 + self.inited_width = 0 + self.inited_nchannels = 0 + self.converter = None + self.port = None + return + + def __del__(self): + if self.port: + self.stop() + if self.oldparams: + import al, AL + al.setparams(AL.DEFAULT_DEVICE, self.oldparams) + self.oldparams = [] + + def wait(self): + if not self.port: + return + import time + while self.port.getfilled() > 0: + time.sleep(0.1) + self.stop() + + def stop(self): + if self.port: + self.port.closeport() + self.port = None + if self.oldparams: + import al, AL + al.setparams(AL.DEFAULT_DEVICE, self.oldparams) + self.oldparams = [] + + def setoutrate(self, rate): + for (raw, cooked) in self.frameratelist: + if rate == raw: + self.params[1] = cooked + self.inited_outrate = 1 + break + else: + raise error, 'bad output rate' + + def setsampwidth(self, width): + for (raw, cooked) in self.sampwidthlist: + if width == raw: + self.config.setwidth(cooked) + self.inited_width = 1 + break + else: + if width == 0: + import AL + self.inited_width = 0 + self.config.setwidth(AL.SAMPLE_16) + self.converter = self.ulaw2lin + else: + raise error, 'bad sample width' + + def setnchannels(self, nchannels): + for (raw, cooked) in self.nchannelslist: + if nchannels == raw: + self.config.setchannels(cooked) + self.inited_nchannels = 1 + break + else: + raise error, 'bad # of channels' + + def writeframes(self, data): + if not (self.inited_outrate and self.inited_nchannels): + raise error, 'params not specified' + if not self.port: + import al, AL + self.port = al.openport('Python', 'w', self.config) + self.oldparams = self.params[:] + al.getparams(AL.DEFAULT_DEVICE, self.oldparams) + al.setparams(AL.DEFAULT_DEVICE, self.params) + if self.converter: + data = self.converter(data) + self.port.writesamps(data) + + def getfilled(self): + if self.port: + return self.port.getfilled() + else: + return 0 + + def getfillable(self): + if self.port: + return self.port.getfillable() + else: + return self.config.getqueuesize() + + # private methods +## if 0: access *: private + + def ulaw2lin(self, data): + import audioop + return audioop.ulaw2lin(data, 2) + +class Play_Audio_sun: +## if 0: access outrate, sampwidth, nchannels, inited_outrate, inited_width, \ +## inited_nchannels, converter: private + + def __init__(self): + self.outrate = 0 + self.sampwidth = 0 + self.nchannels = 0 + self.inited_outrate = 0 + self.inited_width = 0 + self.inited_nchannels = 0 + self.converter = None + self.port = None + return + + def __del__(self): + self.stop() + + def setoutrate(self, rate): + self.outrate = rate + self.inited_outrate = 1 + + def setsampwidth(self, width): + self.sampwidth = width + self.inited_width = 1 + + def setnchannels(self, nchannels): + self.nchannels = nchannels + self.inited_nchannels = 1 + + def writeframes(self, data): + if not (self.inited_outrate and self.inited_width and self.inited_nchannels): + raise error, 'params not specified' + if not self.port: + import sunaudiodev, SUNAUDIODEV + self.port = sunaudiodev.open('w') + info = self.port.getinfo() + info.o_sample_rate = self.outrate + info.o_channels = self.nchannels + if self.sampwidth == 0: + info.o_precision = 8 + self.o_encoding = SUNAUDIODEV.ENCODING_ULAW + # XXX Hack, hack -- leave defaults + else: + info.o_precision = 8 * self.sampwidth + info.o_encoding = SUNAUDIODEV.ENCODING_LINEAR + self.port.setinfo(info) + if self.converter: + data = self.converter(data) + self.port.write(data) + + def wait(self): + if not self.port: + return + self.port.drain() + self.stop() + + def stop(self): + if self.port: + self.port.flush() + self.port.close() + self.port = None + + def getfilled(self): + if self.port: + return self.port.obufcount() + else: + return 0 + +## # Nobody remembers what this method does, and it's broken. :-( +## def getfillable(self): +## return BUFFERSIZE - self.getfilled() + +def AudioDev(): + # Dynamically try to import and use a platform specific module. + try: + import al + except ImportError: + try: + import sunaudiodev + return Play_Audio_sun() + except ImportError: + try: + import Audio_mac + except ImportError: + raise error, 'no audio device' + else: + return Audio_mac.Play_Audio_mac() + else: + return Play_Audio_sgi() + +def test(fn = None): + import sys + if sys.argv[1:]: + fn = sys.argv[1] + else: + fn = 'f:just samples:just.aif' + import aifc + af = aifc.open(fn, 'r') + print fn, af.getparams() + p = AudioDev() + p.setoutrate(af.getframerate()) + p.setsampwidth(af.getsampwidth()) + p.setnchannels(af.getnchannels()) + BUFSIZ = af.getframerate()/af.getsampwidth()/af.getnchannels() + while 1: + data = af.readframes(BUFSIZ) + if not data: break + print len(data) + p.writeframes(data) + p.wait() + +if __name__ == '__main__': + test()