本文整理匯總了Python中audioop.lin2ulaw方法的典型用法代碼示例。如果您正苦於以下問題：Python audioop.lin2ulaw方法的具體用法？Python audioop.lin2ulaw怎麽用？Python audioop.lin2ulaw使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類audioop的用法示例。
在下文中一共展示了audioop.lin2ulaw方法的9個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: test_issue7673
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def test_issue7673(self):
state = None
for data, size in INVALID_DATA:
size2 = size
self.assertRaises(audioop.error, audioop.getsample, data, size, 0)
self.assertRaises(audioop.error, audioop.max, data, size)
self.assertRaises(audioop.error, audioop.minmax, data, size)
self.assertRaises(audioop.error, audioop.avg, data, size)
self.assertRaises(audioop.error, audioop.rms, data, size)
self.assertRaises(audioop.error, audioop.avgpp, data, size)
self.assertRaises(audioop.error, audioop.maxpp, data, size)
self.assertRaises(audioop.error, audioop.cross, data, size)
self.assertRaises(audioop.error, audioop.mul, data, size, 1.0)
self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5)
self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5)
self.assertRaises(audioop.error, audioop.add, data, data, size)
self.assertRaises(audioop.error, audioop.bias, data, size, 0)
self.assertRaises(audioop.error, audioop.reverse, data, size)
self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2)
self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state)
self.assertRaises(audioop.error, audioop.lin2ulaw, data, size)
self.assertRaises(audioop.error, audioop.lin2alaw, data, size)
self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state) 示例2: test_ulaw2lin
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def test_ulaw2lin(self):
encoded = b'\x00\x0e\x28\x3f\x57\x6a\x76\x7c\x7e\x7f'\
b'\x80\x8e\xa8\xbf\xd7\xea\xf6\xfc\xfe\xff'
src = [-8031, -4447, -1471, -495, -163, -53, -18, -6, -2, 0,
8031, 4447, 1471, 495, 163, 53, 18, 6, 2, 0]
for w in 1, 2, 3, 4:
decoded = packs[w](*(x << (w * 8) >> 14 for x in src))
self.assertEqual(audioop.ulaw2lin(encoded, w), decoded)
self.assertEqual(audioop.ulaw2lin(bytearray(encoded), w), decoded)
self.assertEqual(audioop.ulaw2lin(memoryview(encoded), w), decoded)
# Current u-law implementation has two codes fo 0: 0x7f and 0xff.
encoded = bytes(range(127)) + bytes(range(128, 256))
for w in 2, 3, 4:
decoded = audioop.ulaw2lin(encoded, w)
self.assertEqual(audioop.lin2ulaw(decoded, w), encoded) 示例3: writeframesraw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def writeframesraw(self, data):
self._ensure_header_written()
nframes = len(data) / self._framesize
if self._comptype == 'ULAW':
import audioop
data = audioop.lin2ulaw(data, self._sampwidth)
self._file.write(data)
self._nframeswritten = self._nframeswritten + nframes
self._datawritten = self._datawritten + len(data) 示例4: _lin2ulaw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def _lin2ulaw(self, data):
import audioop
return audioop.lin2ulaw(data, 2) 示例5: writeframesraw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def writeframesraw(self, data):
self._ensure_header_written()
if self._comptype == 'ULAW':
import audioop
data = audioop.lin2ulaw(data, self._sampwidth)
nframes = len(data) // self._framesize
self._file.write(data)
self._nframeswritten = self._nframeswritten + nframes
self._datawritten = self._datawritten + len(data) 示例6: test_lin2ulaw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def test_lin2ulaw(self):
self.assertEqual(audioop.lin2ulaw(datas[1], 1),
b'\xff\xad\x8e\x0e\x80\x00\x67')
self.assertEqual(audioop.lin2ulaw(datas[2], 2),
b'\xff\xad\x8e\x0e\x80\x00\x7e')
self.assertEqual(audioop.lin2ulaw(datas[4], 4),
b'\xff\xad\x8e\x0e\x80\x00\x7e') 示例7: test_ulaw2lin
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def test_ulaw2lin(self):
encoded = b'\x00\x0e\x28\x3f\x57\x6a\x76\x7c\x7e\x7f'\
b'\x80\x8e\xa8\xbf\xd7\xea\xf6\xfc\xfe\xff'
src = [-8031, -4447, -1471, -495, -163, -53, -18, -6, -2, 0,
8031, 4447, 1471, 495, 163, 53, 18, 6, 2, 0]
for w in 1, 2, 4:
self.assertEqual(audioop.ulaw2lin(encoded, w),
packs[w](*(x << (w * 8) >> 14 for x in src)))
# Current u-law implementation has two codes fo 0: 0x7f and 0xff.
encoded = ''.join(chr(x) for x in range(127) + range(128, 256))
for w in 2, 4:
decoded = audioop.ulaw2lin(encoded, w)
self.assertEqual(audioop.lin2ulaw(decoded, w), encoded) 示例8: writeframesraw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def writeframesraw(self, data):
if not isinstance(data, (bytes, bytearray)):
data = memoryview(data).cast('B')
self._ensure_header_written()
if self._comptype == 'ULAW':
import audioop
data = audioop.lin2ulaw(data, self._sampwidth)
nframes = len(data) // self._framesize
self._file.write(data)
self._nframeswritten = self._nframeswritten + nframes
self._datawritten = self._datawritten + len(data) 示例9: test_lin2ulaw
# 需要導入模塊: import audioop [as 別名]
# 或者: from audioop import lin2ulaw [as 別名]
def test_lin2ulaw(self):
self.assertEqual(audioop.lin2ulaw(datas[1], 1),
b'\xff\xad\x8e\x0e\x80\x00\x67')
self.assertEqual(audioop.lin2ulaw(bytearray(datas[1]), 1),
b'\xff\xad\x8e\x0e\x80\x00\x67')
self.assertEqual(audioop.lin2ulaw(memoryview(datas[1]), 1),
b'\xff\xad\x8e\x0e\x80\x00\x67')
for w in 2, 3, 4:
self.assertEqual(audioop.lin2ulaw(datas[w], w),
b'\xff\xad\x8e\x0e\x80\x00\x7e')