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Issue #13680: add lowecase compression type to write header; patch by Oleg Plakhotnyuk

This commit is contained in:
Sandro Tosi 2012-01-01 18:04:37 +01:00
parent da785fd527
commit bdd5354700
2 changed files with 13 additions and 10 deletions
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12
Lib/aifc.py
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@ -716,18 +716,12 @@ class Aifc_write:
def _ensure_header_written(self, datasize):
if not self._nframeswritten:
if self._comptype in (b'ULAW', b'ALAW'):
if self._comptype in (b'ULAW', b'ulaw', b'ALAW', b'alaw', b'G722'):
if not self._sampwidth:
self._sampwidth = 2
if self._sampwidth != 2:
raise Error('sample width must be 2 when compressing '
'with ulaw/ULAW or alaw/ALAW')
if self._comptype == b'G722':
if not self._sampwidth:
self._sampwidth = 2
if self._sampwidth != 2:
raise Error('sample width must be 2 when compressing '
'with G7.22 (ADPCM)')
'with ulaw/ULAW, alaw/ALAW or G7.22 (ADPCM)')
if not self._nchannels:
raise Error('# channels not specified')
if not self._sampwidth:
@ -743,8 +737,6 @@ class Aifc_write:
self._convert = self._lin2ulaw
elif self._comptype in (b'alaw', b'ALAW'):
self._convert = self._lin2alaw
else:
raise Error('unsupported compression type')
def _write_header(self, initlength):
if self._aifc and self._comptype != b'NONE':

11
Lib/test/test_aifc.py
View File

@ -1,6 +1,7 @@
from test.support import findfile, run_unittest, TESTFN
import unittest
import os
import io
import aifc
@ -109,6 +110,16 @@ class AIFCTest(unittest.TestCase):
f.close()
self.assertEqual(testfile.closed, True)
def test_write_header_comptype_sampwidth(self):
for comptype in (b'ULAW', b'ulaw', b'ALAW', b'alaw', b'G722'):
fout = self.fout = aifc.open(io.BytesIO(), 'wb')
fout.setnchannels(1)
fout.setframerate(1)
fout.setcomptype(comptype, b'')
fout.close()
self.assertEqual(fout.getsampwidth(), 2)
fout.initfp(None)
def test_main():
run_unittest(AIFCTest)