def test_short(self):
self.failUnlessEqual(cdata.short_le(self.ZERO(2)), 0)
self.failUnlessEqual(cdata.short_le(self.LEONE(2)), 1)
self.failUnlessEqual(cdata.short_le(self.BEONE(2)), 256)
self.failUnlessEqual(cdata.short_le(self.NEGONE(2)), -1)
self.assertTrue(cdata.short_le is cdata.int16_le)
self.failUnlessEqual(cdata.short_be(self.ZERO(2)), 0)
self.failUnlessEqual(cdata.short_be(self.LEONE(2)), 256)
self.failUnlessEqual(cdata.short_be(self.BEONE(2)), 1)
self.failUnlessEqual(cdata.short_be(self.NEGONE(2)), -1)
self.assertTrue(cdata.short_be is cdata.int16_be)
def test_short(self):
self.failUnlessEqual(cdata.short_le(self.ZERO(2)), 0)
self.failUnlessEqual(cdata.short_le(self.LEONE(2)), 1)
self.failUnlessEqual(cdata.short_le(self.BEONE(2)), 256)
self.failUnlessEqual(cdata.short_le(self.NEGONE(2)), -1)
self.assertTrue(cdata.short_le is cdata.int16_le)
self.failUnlessEqual(cdata.short_be(self.ZERO(2)), 0)
self.failUnlessEqual(cdata.short_be(self.LEONE(2)), 256)
self.failUnlessEqual(cdata.short_be(self.BEONE(2)), 1)
self.failUnlessEqual(cdata.short_be(self.NEGONE(2)), -1)
self.assertTrue(cdata.short_be is cdata.int16_be)
def __init__(self, fileobj):
header = fileobj.read(28)
if len(header) != 28 or not header.startswith("wvpk"):
raise WavPackHeaderError("not a WavPack file")
samples = cdata.uint_le(header[12:16])
flags = cdata.uint_le(header[24:28])
self.version = cdata.short_le(header[8:10])
self.channels = bool(flags & 4) or 2
self.sample_rate = RATES[(flags >> 23) & 0xF]
self.length = float(samples) / self.sample_rate
def __init__(self, fileobj):
header = fileobj.read(28)
if len(header) != 28 or not header.startswith("wvpk"):
raise WavPackHeaderError("not a WavPack file")
samples = cdata.uint_le(header[12:16])
flags = cdata.uint_le(header[24:28])
self.version = cdata.short_le(header[8:10])
self.channels = bool(flags & 4) or 2
self.sample_rate = RATES[(flags >> 23) & 0xF]
self.length = float(samples) / self.sample_rate
