1991-09-15 21:05:15 +00:00
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import aiff
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import al
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import sys
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import time
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def main():
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v = 1
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c = al.newconfig()
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nchannels = c.getchannels()
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nsampframes = 0 # ???
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sampwidth = c.getwidth()
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samprate = 0.0 # unknown
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filename = sys.argv[1]
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f = open(filename, 'r')
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type, totalsize = aiff.read_chunk_header(f)
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if type <> 'FORM':
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raise aiff.Error, 'FORM chunk expected at start of file'
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aiff.read_form_chunk(f)
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while 1:
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try:
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type, size = aiff.read_chunk_header(f)
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except EOFError:
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break
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if v: print 'header:', `type`, size
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1992-03-30 13:30:03 +00:00
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if type == 'COMM':
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1991-09-15 21:05:15 +00:00
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nchannels, nsampframes, sampwidth, samprate = \
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aiff.read_comm_chunk(f)
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if v: print nchannels, nsampframes, sampwidth, samprate
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1992-03-30 13:30:03 +00:00
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elif type == 'SSND':
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1991-09-15 21:05:15 +00:00
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offset, blocksize = aiff.read_ssnd_chunk(f)
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if v: print offset, blocksize
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data = f.read(size-8)
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if size%2: void = f.read(1)
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p = makeport(nchannels, sampwidth, samprate)
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play(p, data, offset, blocksize)
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elif type in aiff.skiplist:
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aiff.skip_chunk(f, size)
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else:
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raise aiff.Error, 'bad chunk type ' + type
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def makeport(nchannels, sampwidth, samprate):
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c = al.newconfig()
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c.setchannels(nchannels)
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c.setwidth(sampwidth/8)
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# can't set the rate...
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p = al.openport('', 'w', c)
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return p
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def play(p, data, offset, blocksize):
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data = data[offset:]
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p.writesamps(data)
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while p.getfilled() > 0: time.millisleep(10)
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main()
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