| import aiff |
| import al |
| import sys |
| import time |
| |
| def main(): |
| v = 1 |
| c = al.newconfig() |
| nchannels = c.getchannels() |
| nsampframes = 0 # ??? |
| sampwidth = c.getwidth() |
| samprate = 0.0 # unknown |
| filename = sys.argv[1] |
| f = open(filename, 'r') |
| type, totalsize = aiff.read_chunk_header(f) |
| if type <> 'FORM': |
| raise aiff.Error, 'FORM chunk expected at start of file' |
| aiff.read_form_chunk(f) |
| while 1: |
| try: |
| type, size = aiff.read_chunk_header(f) |
| except EOFError: |
| break |
| if v: print 'header:', `type`, size |
| if type == 'COMM': |
| nchannels, nsampframes, sampwidth, samprate = \ |
| aiff.read_comm_chunk(f) |
| if v: print nchannels, nsampframes, sampwidth, samprate |
| elif type == 'SSND': |
| offset, blocksize = aiff.read_ssnd_chunk(f) |
| if v: print offset, blocksize |
| data = f.read(size-8) |
| if size%2: void = f.read(1) |
| p = makeport(nchannels, sampwidth, samprate) |
| play(p, data, offset, blocksize) |
| elif type in aiff.skiplist: |
| aiff.skip_chunk(f, size) |
| else: |
| raise aiff.Error, 'bad chunk type ' + type |
| |
| def makeport(nchannels, sampwidth, samprate): |
| c = al.newconfig() |
| c.setchannels(nchannels) |
| c.setwidth(sampwidth/8) |
| # can't set the rate... |
| p = al.openport('', 'w', c) |
| return p |
| |
| def play(p, data, offset, blocksize): |
| data = data[offset:] |
| p.writesamps(data) |
| while p.getfilled() > 0: time.sleep(0.01) |
| |
| main() |