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Issue #24326: Fixed audioop.ratecv() with non-default weightB argument. 

Original patch by David Moore.
This commit is contained in:
Serhiy Storchaka 2015-05-30 00:58:09 +03:00
parent 38bc0a7f97 a663121e10
commit 07739f3555
3 changed files with 21 additions and 1 deletions
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17
Lib/test/test_audioop.py
View File

@ -363,6 +363,9 @@ class TestAudioop(unittest.TestCase):
(b'', (-2, ((0, 0),))))
self.assertEqual(audioop.ratecv(datas[w], w, 1, 8000, 8000, None)[0],
datas[w])
self.assertEqual(audioop.ratecv(datas[w], w, 1, 8000, 8000, None, 1, 0)[0],
datas[w])
state = None
d1, state = audioop.ratecv(b'\x00\x01\x02', 1, 1, 8000, 16000, state)
d2, state = audioop.ratecv(b'\x00\x01\x02', 1, 1, 8000, 16000, state)
@ -378,6 +381,20 @@ class TestAudioop(unittest.TestCase):
self.assertEqual(d, d0)
self.assertEqual(state, state0)
expected = {
1: packs[1](0, 0x0d, 0x37, -0x26, 0x55, -0x4b, -0x14),
2: packs[2](0, 0x0da7, 0x3777, -0x2630, 0x5673, -0x4a64, -0x129a),
3: packs[3](0, 0x0da740, 0x377776, -0x262fca,
0x56740c, -0x4a62fd, -0x1298c0),
4: packs[4](0, 0x0da740da, 0x37777776, -0x262fc962,
0x56740da6, -0x4a62fc96, -0x1298bf26),
}
for w in 1, 2, 3, 4:
self.assertEqual(audioop.ratecv(datas[w], w, 1, 8000, 8000, None, 3, 1)[0],
expected[w])
self.assertEqual(audioop.ratecv(datas[w], w, 1, 8000, 8000, None, 30, 10)[0],
expected[w])
def test_reverse(self):
for w in 1, 2, 3, 4:
self.assertEqual(audioop.reverse(b'', w), b'')

3
Misc/NEWS
View File

@ -30,6 +30,9 @@ Core and Builtins
Library
-------
- Issue #24326: Fixed audioop.ratecv() with non-default weightB argument.
Original patch by David Moore.
What's New in Python 3.5.0 beta 1?
==================================

2
Modules/audioop.c
View File

@ -1331,7 +1331,7 @@ audioop_ratecv_impl(PyModuleDef *module, Py_buffer *fragment, int width,
/* divide weightA and weightB by their greatest common divisor */
d = gcd(weightA, weightB);
weightA /= d;
weightA /= d;
weightB /= d;
if ((size_t)nchannels > PY_SIZE_MAX/sizeof(int)) {
PyErr_SetString(PyExc_MemoryError,