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Remove reference to obsolete module 'audio'

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This commit is contained in:
Guido van Rossum 1992-06-03 16:47:49 +00:00
parent ada67ec3e1
commit d482e8ad4a
1 changed files with 7 additions and 15 deletions
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22
Lib/sunaudio.py
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@ -1,7 +1,5 @@
# Module 'sunaudio' -- interpret sun audio headers
import audio
MAGIC = '.snd'
error = 'sunaudio sound header conversion error'
@ -9,14 +7,8 @@
# convert a 4-char value to integer
def c2i(data):
if type(data) <> type('') or len(data) <> 4:
raise error, 'c2i: bad arg (not string[4])'
bytes = audio.chr2num(data)
for i in (1, 2, 3):
if bytes[i] < 0:
bytes[i] = bytes[i] + 256
return ((bytes[0]*256 + bytes[1])*256 + bytes[2])*256 + bytes[3]
def get_long_be(s):
return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3])
# read a sound header from an open file
@ -24,11 +16,11 @@ def c2i(data):
def gethdr(fp):
if fp.read(4) <> MAGIC:
raise error, 'gethdr: bad magic word'
hdr_size = c2i(fp.read(4))
data_size = c2i(fp.read(4))
encoding = c2i(fp.read(4))
sample_rate = c2i(fp.read(4))
channels = c2i(fp.read(4))
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'