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Revision 3aeda28b22cfaf697edf50c3f0d9e1d7e5ba1671 authored by Ronald Oussoren on 20 September 2009, 20:17:15 UTC, committed by Ronald Oussoren on 20 September 2009, 20:17:15 UTC
svn+ssh://pythondev@svn.python.org/python/trunk ........ r74981 | ronald.oussoren | 2009-09-20 22:16:11 +0200 (Sun, 20 Sep 2009) | 3 lines * Make it easier to build custom installers (such as a 3-way universal build) * Upgrade bzip dependency to 1.0.5 ........
1 parent ba0aa6b
Tip revision: 3aeda28b22cfaf697edf50c3f0d9e1d7e5ba1671 authored by Ronald Oussoren on 20 September 2009, 20:17:15 UTC
Merged revisions 74981 via svnmerge from
Merged revisions 74981 via svnmerge from
Tip revision: 3aeda28
sunaudio.py
"""Interpret sun audio headers."""
from warnings import warnpy3k
warnpy3k("the sunaudio module has been removed in Python 3.0; "
"use the sunau module instead", stacklevel=2)
del warnpy3k
MAGIC = '.snd'
class error(Exception):
pass
def get_long_be(s):
"""Convert a 4-char value to integer."""
return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3])
def gethdr(fp):
"""Read a sound header from an open file."""
if fp.read(4) != MAGIC:
raise error, 'gethdr: bad magic word'
hdr_size = get_long_be(fp.read(4))
data_size = get_long_be(fp.read(4))
encoding = get_long_be(fp.read(4))
sample_rate = get_long_be(fp.read(4))
channels = get_long_be(fp.read(4))
excess = hdr_size - 24
if excess < 0:
raise error, 'gethdr: bad hdr_size'
if excess > 0:
info = fp.read(excess)
else:
info = ''
return (data_size, encoding, sample_rate, channels, info)
def printhdr(file):
"""Read and print the sound header of a named file."""
hdr = gethdr(open(file, 'r'))
data_size, encoding, sample_rate, channels, info = hdr
while info[-1:] == '\0':
info = info[:-1]
print 'File name: ', file
print 'Data size: ', data_size
print 'Encoding: ', encoding
print 'Sample rate:', sample_rate
print 'Channels: ', channels
print 'Info: ', repr(info)
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