[Python-bugs-list] [ python-Bugs-446219 ] sndhdr.what() fails on some WAV files

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Bugs item #446219, was opened at 2001-07-30 20:45
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=446219&group_id=5470

Category: Python Library
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: John Popplewell (johnnypops)
>Assigned to: Guido van Rossum (gvanrossum)
Summary: sndhdr.what() fails on some WAV files

Initial Comment:
Currently using Python 2.0.1 [final]
on Windows 95/98/2K.
Bug probably only affects Windows

>>>import sndhdr
>>>print sndhdr.what('audio.wav')
None

Should display:
('wav', 44100, 1, -1, 16)

Occurs with WAV files that have a header starting :

52 49 46 46 24 1A 01 00 ; RIFF$...

I think it is the ^Z that is screwing things up.

The fix for the code in "sndhdr.py" is :

def whathdr(filename):
	"""Recognize sound headers"""
	f = open(filename, 'rb')
	h = f.read(512)
...

If the file is opened in binary mode then everything 
is OK.

cheers,
John Popplewell

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>Comment By: Guido van Rossum (gvanrossum)
Date: 2001-07-30 23:28

Message:
Logged In: YES 
user_id=6380

Thanks!  Fixed in CVS now.


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You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=446219&group_id=5470