diff options
Diffstat (limited to 'Lib/audiodev.py')
| -rw-r--r-- | Lib/audiodev.py | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/Lib/audiodev.py b/Lib/audiodev.py deleted file mode 100644 index 0585bcf..0000000 --- a/Lib/audiodev.py +++ /dev/null @@ -1,257 +0,0 @@ -"""Classes for manipulating audio devices (currently only for Sun and SGI)""" - -__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() |