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aifc.py, sunau.py: Adapted comments; added access statements.

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SUNAUDIODEV.py: Added some constants for Solaris.
This commit is contained in:
Sjoerd Mullender 1993-12-20 09:36:01 +00:00
parent 6ed9df2641
commit 2a45141741
4 changed files with 84 additions and 42 deletions
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46
Lib/sunau.py
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@ -37,9 +37,7 @@
#
# Reading audio files:
# f = au.open(file, 'r')
# or
# f = au.openfp(filep, 'r')
# where file is the name of a file and filep is an open file pointer.
# where file is either the name of a file or an open file pointer.
# The open file pointer must have methods read(), seek(), and close().
# When the setpos() and rewind() methods are not used, the seek()
# method is not necessary.
@ -72,9 +70,7 @@
#
# Writing audio files:
# f = au.open(file, 'w')
# or
# f = au.openfp(filep, 'w')
# where file is the name of a file and filep is an open file pointer.
# where file is either the name of a file or an open file pointer.
# The open file pointer must have methods write(), tell(), seek(), and
# close().
#
@ -151,6 +147,20 @@ def _write_u32(file, x):
file.write(chr(int(data[i])))
class Au_read:
access _file, _soundpos, _hdr_size, _data_size, _encoding, \
_sampwidth, _framesize, _framerate, _nchannels, \
_framesize, _info: private
def __init__(self, f):
if type(f) == type(''):
import builtin
f = builtin.open(f, 'r')
self.initfp(f)
def __del__(self):
if self._file:
self.close()
def initfp(self, file):
self._file = file
self._soundpos = 0
@ -193,16 +203,6 @@ class Au_read:
else:
self._info = ''
def __init__(self, f):
if type(f) == type(''):
import builtin
f = builtin.open(f, 'r')
self.initfp(f)
def __del__(self):
if self._file:
self.close()
def getfp(self):
return self._file
@ -278,12 +278,20 @@ class Au_read:
self._file = None
class Au_write:
access _file, _framerate, _nchannels, _sampwidth, _framesize, \
_nframes, _nframeswritten, _datawritten, _info, \
_comptype: private
def __init__(self, f):
if type(f) == type(''):
import builtin
f = builtin.open(f, 'w')
self.initfp(f)
def __del__(self):
if self._file:
self.close()
def initfp(self, file):
self._file = file
self._framerate = 0
@ -297,10 +305,6 @@ class Au_write:
self._info = ''
self._comptype = 'ULAW' # default is U-law
def __del__(self):
if self._file:
self.close()
def setnchannels(self, nchannels):
if self._nframeswritten:
raise Error, 'cannot change parameters after starting to write'
@ -404,6 +408,8 @@ class Au_write:
#
# private methods
#
access *: private
def _ensure_header_written(self):
if not self._nframeswritten:
if not self._nchannels: