我们从Python开源项目中，提取了以下31个代码示例，用于说明如何使用audioop.adpcm2lin()。
def test_adpcm2lin(self): self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 1, None), (b'\x00\x00\x00\xff\x00\xff', (-179, 40))) self.assertEqual(audioop.adpcm2lin(bytearray(b'\x07\x7f\x7f'), 1, None), (b'\x00\x00\x00\xff\x00\xff', (-179, 40))) self.assertEqual(audioop.adpcm2lin(memoryview(b'\x07\x7f\x7f'), 1, None), (b'\x00\x00\x00\xff\x00\xff', (-179, 40))) self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 2, None), (packs[2](0, 0xb, 0x29, -0x16, 0x72, -0xb3), (-179, 40))) self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 3, None), (packs[3](0, 0xb00, 0x2900, -0x1600, 0x7200, -0xb300), (-179, 40))) self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 4, None), (packs[4](0, 0xb0000, 0x290000, -0x160000, 0x720000, -0xb30000), (-179, 40))) # Very cursory test for w in 1, 2, 3, 4: self.assertEqual(audioop.adpcm2lin(b'\0' * 5, w, None), (b'\0' * w * 10, (0, 0)))
def _adpcm2lin(self, data): import audioop if not hasattr(self, '_adpcmstate'): # first time self._adpcmstate = None data, self._adpcmstate = audioop.adpcm2lin(data, 2, self._adpcmstate) return data
def test_adpcm2lin(self): # Very cursory test self.assertEqual(audioop.adpcm2lin(b'\0\0', 1, None), (b'\0' * 4, (0,0))) self.assertEqual(audioop.adpcm2lin(b'\0\0', 2, None), (b'\0' * 8, (0,0))) self.assertEqual(audioop.adpcm2lin(b'\0\0', 4, None), (b'\0' * 16, (0,0)))
def test_wrongsize(self): data = b'abc' state = None for size in (-1, 3, 5): self.assertRaises(audioop.error, audioop.ulaw2lin, data, size) self.assertRaises(audioop.error, audioop.alaw2lin, data, size) self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state)
def test_adpcm2lin(self): self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 1, None), (b'\x00\x00\x00\xff\x00\xff', (-179, 40))) self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 2, None), (packs[2](0, 0xb, 0x29, -0x16, 0x72, -0xb3), (-179, 40))) self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 4, None), (packs[4](0, 0xb0000, 0x290000, -0x160000, 0x720000, -0xb30000), (-179, 40))) # Very cursory test for w in 1, 2, 4: self.assertEqual(audioop.adpcm2lin(b'\0' * 5, w, None), (b'\0' * w * 10, (0, 0)))
def test_invalid_adpcm_state(self): # state must be a tuple or None, not an integer self.assertRaises(TypeError, audioop.adpcm2lin, b'\0', 1, 555) self.assertRaises(TypeError, audioop.lin2adpcm, b'\0', 1, 555) # Issues #24456, #24457: index out of range self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0, -1)) self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0, 89)) self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0, -1)) self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0, 89)) # value out of range self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (-0x8001, 0)) self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0x8000, 0)) self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (-0x8001, 0)) self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0x8000, 0))
def test_wrongsize(self): data = b'abcdefgh' state = None for size in (-1, 0, 3, 5, 1024): self.assertRaises(audioop.error, audioop.ulaw2lin, data, size) self.assertRaises(audioop.error, audioop.alaw2lin, data, size) self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state)
def test_wrongsize(self): data = b'abcdefgh' state = None for size in (-1, 0, 5, 1024): self.assertRaises(audioop.error, audioop.ulaw2lin, data, size) self.assertRaises(audioop.error, audioop.alaw2lin, data, size) self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state)
def test_invalid_adpcm_state(self): # state must be a tuple or None, not an integer self.assertRaises(TypeError, audioop.adpcm2lin, b'\0', 1, 555) self.assertRaises(TypeError, audioop.lin2adpcm, b'\0', 1, 555)
