本文整理汇总了Python中mutagen._compat.cBytesIO函数的典型用法代码示例。如果您正苦于以下问题：Python cBytesIO函数的具体用法？Python cBytesIO怎么用？Python cBytesIO使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了cBytesIO函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_almost_my_file
def test_almost_my_file(self):
self.failUnlessRaises(
MusepackHeaderError, MusepackInfo, cBytesIO(b"MP+" + b"\x00" * 32))
self.failUnlessRaises(
MusepackHeaderError, MusepackInfo, cBytesIO(b"MP+" + b"\x00" * 100))
self.failUnlessRaises(
MusepackHeaderError, MusepackInfo, cBytesIO(b"MPCK" + b"\x00" * 100))示例2: test_read
def test_read(self):
payload = 8 * b"\xff"
fileobj = cBytesIO(b"\x00\x00\x00\x10atom" + payload)
atom = Atom(fileobj)
ok, data = atom.read(fileobj)
self.assertTrue(ok)
self.assertEqual(data, payload)
payload = 7 * b"\xff"
fileobj = cBytesIO(b"\x00\x00\x00\x10atom" + payload)
atom = Atom(fileobj)
ok, data = atom.read(fileobj)
self.assertFalse(ok)
self.assertEqual(data, payload)示例3: _parse_dac3
def _parse_dac3(self, atom, fileobj):
# ETSI TS 102 366
assert atom.name == b"dac3"
ok, data = atom.read(fileobj)
if not ok:
raise ASEntryError("truncated %s atom" % atom.name)
fileobj = cBytesIO(data)
r = BitReader(fileobj)
# sample_rate in AudioSampleEntry covers values in
# fscod2 and not just fscod, so ignore fscod here.
try:
r.skip(2 + 5 + 3) # fscod, bsid, bsmod
acmod = r.bits(3)
lfeon = r.bits(1)
bit_rate_code = r.bits(5)
r.skip(5) # reserved
except BitReaderError as e:
raise ASEntryError(e)
self.channels = [2, 1, 2, 3, 3, 4, 4, 5][acmod] + lfeon
try:
self.bitrate = [
32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192,
224, 256, 320, 384, 448, 512, 576, 640][bit_rate_code] * 1000
except IndexError:
pass示例4: test_fileobj
def test_fileobj(self):
for filename in self.filenames:
with open(filename, "rb") as h:
self.assertTrue(File(h) is not None)
with open(filename, "rb") as h:
fileobj = cBytesIO(h.read())
self.assertTrue(File(fileobj, filename=filename) is not None)示例5: test_theora_bad_version
def test_theora_bad_version(self):
page = OggPage(open(self.filename, "rb"))
packet = page.packets[0]
packet = packet[:7] + b"\x03\x00" + packet[9:]
page.packets = [packet]
fileobj = cBytesIO(page.write())
self.failUnlessRaises(IOError, OggTheoraInfo, fileobj)示例6: test_length_0_container
def test_length_0_container(self):
data = cBytesIO(struct.pack(">I4s", 0, b"moov") +
Atom.render(b"data", b"whee"))
atom = Atom(data)
self.failUnlessEqual(len(atom.children), 1)
self.failUnlessEqual(atom.length, 20)
self.failUnlessEqual(atom.children[-1].length, 12)示例7: test_invalid_header
def test_invalid_header(self):
asf = ASF()
fileobj = cBytesIO(
b"0&\xb2u\x8ef\xcf\x11\xa6\xd9\x00\xaa\x00b\xcel\x19\xbf\x01\x00"
b"\x00\x00\x00\x00\x07\x00\x00\x00\x01\x02")
self.assertRaises(
ASFHeaderError, HeaderObject.parse_full, asf, fileobj)示例8: test_underestimated_bitrate
def test_underestimated_bitrate(self):
page = OggPage(open(self.filename, "rb"))
packet = page.packets[0]
packet = (packet[:16] + b"\x00\x00\x01\x00" + b"\x01\x00\x00\x00" +
b"\x00\x00\x01\x00" + packet[28:])
page.packets[0] = packet
info = OggVorbisInfo(cBytesIO(page.write()))
self.failUnlessEqual(info.bitrate, 65536)示例9: test_negative_bitrate
def test_negative_bitrate(self):
page = OggPage(open(self.filename, "rb"))
packet = page.packets[0]
packet = (packet[:16] + b"\xff\xff\xff\xff" + b"\xff\xff\xff\xff" +
b"\xff\xff\xff\xff" + packet[28:])
page.packets[0] = packet
info = OggVorbisInfo(cBytesIO(page.write()))
self.failUnlessEqual(info.bitrate, 0)示例10: test_zero_padded_sh_packet
def test_zero_padded_sh_packet(self):
# https://bitbucket.org/lazka/mutagen/issue/198
data = (b"MPCKSH\x10\x95 Q\xa2\x08\x81\xb8\xc9T\x00\x1e\x1b"
b"\x00RG\x0c\x01A\xcdY\x06?\x80Z\x06EI")
fileobj = cBytesIO(data)
info = MusepackInfo(fileobj)
self.assertEqual(info.channels, 2)
self.assertEqual(info.samples, 3024084)示例11: test_bits
def test_bits(self):
data = b"\x12\x34\x56\x78\x89\xAB\xCD\xEF"
ref = cdata.uint64_be(data)
for i in xrange(64):
fo = cBytesIO(data)
r = BitReader(fo)
v = r.bits(i) << (64 - i) | r.bits(64 - i)
self.assertEqual(v, ref)示例12: test_get_position
def test_get_position(self):
r = BitReader(cBytesIO(b"\xAB\xCD"))
self.assertEqual(r.get_position(), 0)
r.bits(3)
self.assertEqual(r.get_position(), 3)
r.skip(9)
self.assertEqual(r.get_position(), 3 + 9)
r.align()
self.assertEqual(r.get_position(), 16)示例13: test_invalid_header
def test_invalid_header(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
asf = ASF()
fileobj = cBytesIO(
b"0&\xb2u\x8ef\xcf\x11\xa6\xd9\x00\xaa\x00b\xcel\x19\xbf\x01\x00"
b"\x00\x00\x00\x00\x07\x00\x00\x00\x01\x02")
self.assertRaises(
ASFHeaderError, HeaderObject.parse_full, asf, fileobj)示例14: test_valid_info_header
def test_valid_info_header(self):
data = (b'Info\x00\x00\x00\x0f\x00\x00:>\x00\xed\xbd8\x00\x03\x05\x07'
b'\n\r\x0f\x12\x14\x17\x1a\x1c\x1e"$&)+.1359;[email protected]\\^ac'
b'fikmqsux{}\x80\x82\x84\x87\x8a\x8c\x8e\x92\x94\x96\x99\x9c'
b'\x9e\xa1\xa3\xa5\xa9\xab\xad\xb0\xb3\xb5\xb8\xba\xbd\xc0\xc2'
b'\xc4\xc6\xca\xcc\xce\xd1\xd4\xd6\xd9\xdb\xdd\xe1\xe3\xe5\xe8'
b'\xeb\xed\xf0\xf2\xf5\xf8\xfa\xfc\x00\x00\x009')
fileobj = cBytesIO(data)
xing = XingHeader(fileobj)
self.assertEqual(xing.bytes, 15580472)
self.assertEqual(xing.frames, 14910)
self.assertEqual(xing.vbr_scale, 57)
self.assertTrue(xing.toc)
self.assertEqual(len(xing.toc), 100)
self.assertEqual(sum(xing.toc), 12625) # only for coverage..
self.assertEqual(xing.is_info, True)
XingHeader(cBytesIO(data.replace(b'Info', b'Xing')))示例15: test_xing_unknown_framecount
def test_xing_unknown_framecount(self):
frame = (
b'\xff\xfb\xe4\x0c\x00\x0f\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x00'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
b'\x00\x00\x00\x00Info\x00\x00\x00\x02\x00\[email protected]\x00\xb4R\x80\x00'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
)
fileobj = cBytesIO(frame)
info = MPEGInfo(fileobj)
assert info.bitrate == 320000
assert info.length > 0