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 = io.BytesIO(page.write())
self.failUnlessRaises(IOError, OggTheoraInfo, fileobj)
def test_to_packets(self):
self.failUnlessEqual(
[b"foo", b"bar", b"baz"], OggPage.to_packets(self.pages))
self.pages[0].complete = False
self.pages[1].continued = True
self.failUnlessEqual(
[b"foobar", b"baz"], OggPage.to_packets(self.pages))
def _inject(self, fileobj):
"""Write tag data into the FLAC Vorbis comment packet/page."""
# Ogg FLAC has no convenient data marker like Vorbis, but the
# second packet - and second page - must be the comment data.
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x7FFLAC"):
page = OggPage(fileobj)
first_page = page
while not (page.sequence == 1 and page.serial == first_page.serial):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == first_page.serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment block.
data = self.write()
data = bytes((packets[0][0],)) + struct.pack(">I", len(data))[-3:] + data
packets[0] = data
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj):
"""Write tag data into the Speex comment packet/page."""
fileobj.seek(0)
# Find the first header page, with the stream info.
# Use it to get the serial number.
page = OggPage(fileobj)
while not page.packets[0].startswith(b"Speex "):
page = OggPage(fileobj)
# Look for the next page with that serial number, it'll start
# the comment packet.
serial = page.serial
page = OggPage(fileobj)
while page.serial != serial:
page = OggPage(fileobj)
# Then find all the pages with the comment packet.
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment packet.
packets[0] = self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def __init__(self, fileobj):
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x01vorbis"):
page = OggPage(fileobj)
if not page.first:
raise OggVorbisHeaderError(
"page has ID header, but doesn't start a stream")
(self.channels, self.sample_rate, max_bitrate, nominal_bitrate,
min_bitrate) = struct.unpack("<B4i", page.packets[0][11:28])
self.serial = page.serial
max_bitrate = max(0, max_bitrate)
min_bitrate = max(0, min_bitrate)
nominal_bitrate = max(0, nominal_bitrate)
if nominal_bitrate == 0:
self.bitrate = (max_bitrate + min_bitrate) // 2
elif max_bitrate and max_bitrate < nominal_bitrate:
# If the max bitrate is less than the nominal, we know
# the nominal is wrong.
self.bitrate = max_bitrate
elif min_bitrate > nominal_bitrate:
self.bitrate = min_bitrate
else:
self.bitrate = nominal_bitrate
def test_too_many_packets(self):
packets = [b"1"] * 3000
pages = OggPage.from_packets(packets)
for p in pages:
OggPage.write(p)
self.failUnless(len(pages) > 3000//255)
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(io.BytesIO(page.write()))
self.failUnlessEqual(info.bitrate, 65536)
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(io.BytesIO(page.write()))
self.failUnlessEqual(info.bitrate, 0)
def _inject(self, fileobj):
fileobj.seek(0)
info = OggOpusInfo(fileobj)
old_pages = self.__get_comment_pages(fileobj, info)
packets = OggPage.to_packets(old_pages)
packets[0] = b"OpusTags" + self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj):
fileobj.seek(0)
info = OggOpusInfo(fileobj)
old_pages = self.__get_comment_pages(fileobj, info)
packets = OggPage.to_packets(old_pages)
packets[0] = b"OpusTags" + self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def __init__(self, fileobj, info):
pages = []
complete = False
while not complete:
page = OggPage(fileobj)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
data = OggPage.to_packets(pages)[0][7:] # Strip off "\x03vorbis".
super(OggVCommentDict, self).__init__(data)
def __init__(self, fileobj, info):
pages = []
complete = False
while not complete:
page = OggPage(fileobj)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
data = OggPage.to_packets(pages)[0] + b"\x01"
super(OggSpeexVComment, self).__init__(data, framing=False)
def _inject(self, fileobj):
"""Write tag data into the Speex comment packet/page."""
fileobj.seek(0)
# Find the first header page, with the stream info.
# Use it to get the serial number.
page = OggPage(fileobj)
while not page.packets[0].startswith(b"Speex "):
page = OggPage(fileobj)
# Look for the next page with that serial number, it'll start
# the comment packet.
serial = page.serial
page = OggPage(fileobj)
while page.serial != serial:
page = OggPage(fileobj)
# Then find all the pages with the comment packet.
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment packet.
packets[0] = self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def __init__(self, fileobj):
page = OggPage(fileobj)
while not page.packets[0].startswith(b"Speex "):
page = OggPage(fileobj)
if not page.first:
raise OggSpeexHeaderError(
"page has ID header, but doesn't start a stream")
self.sample_rate = cdata.uint_le(page.packets[0][36:40])
self.channels = cdata.uint_le(page.packets[0][48:52])
self.bitrate = max(0, cdata.int_le(page.packets[0][52:56]))
self.serial = page.serial
def test_unsupported_version(self):
page = OggPage(open(self.filename, "rb"))
data = bytearray(page.packets[0])
data[8] = 0x03
page.packets[0] = bytes(data)
OggOpusInfo(io.BytesIO(page.write()))
data[8] = 0x10
page.packets[0] = bytes(data)
self.failUnlessRaises(IOError, OggOpusInfo, io.BytesIO(page.write()))
def load(self, data, info, errors='replace'):
# data should be pointing at the start of an Ogg page, after
# the first FLAC page.
pages = []
complete = False
while not complete:
page = OggPage(data)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
comment = BytesIO(OggPage.to_packets(pages)[0][4:])
super(OggFLACVComment, self).load(comment, errors=errors)
def _inject(self, fileobj):
"""Write tag data into the FLAC Vorbis comment packet/page."""
# Ogg FLAC has no convenient data marker like Vorbis, but the
# second packet - and second page - must be the comment data.
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x7FFLAC"):
page = OggPage(fileobj)
first_page = page
while not (page.sequence == 1 and page.serial == first_page.serial):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == first_page.serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment block.
data = self.write()
data = bytes(
(packets[0][0], )) + struct.pack(">I", len(data))[-3:] + data
packets[0] = data
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def test_random_data_roundtrip(self):
try:
random_file = open("/dev/urandom", "rb")
except (IOError, OSError):
print("WARNING: Random data round trip test disabled.")
return
for i in range(10):
num_packets = random.randrange(2, 100)
lengths = [random.randrange(10, 10000)
for i in range(num_packets)]
packets = [random_file.read(l) for l in lengths]
self.failUnlessEqual(
packets, OggPage.to_packets(OggPage.from_packets(packets)))
def test_renumber_muxed(self):
pages = [OggPage() for i in range(10)]
for seq, page in enumerate(pages[0:1] + pages[2:]):
page.serial = 0
page.sequence = seq
pages[1].serial = 2
pages[1].sequence = 100
data = io.BytesIO(b"".join([page.write() for page in pages]))
OggPage.renumber(data, 0, 20)
data.seek(0)
pages = [OggPage(data) for i in range(10)]
self.failUnlessEqual(pages[1].serial, 2)
self.failUnlessEqual(pages[1].sequence, 100)
pages.pop(1)
self.failUnlessEqual([page.sequence for page in pages], list(range(20, 29)))
def __get_comment_pages(self, fileobj, info):
# find the first tags page with the right serial
page = OggPage(fileobj)
while ((info.serial != page.serial)
or not page.packets[0].startswith(b"OpusTags")):
page = OggPage(fileobj)
# get all comment pages
pages = [page]
while not (pages[-1].complete or len(pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == pages[0].serial:
pages.append(page)
return pages
def test_from_packets_position(self):
packets = [b"1" * 100000]
pages = OggPage.from_packets(packets)
self.failUnless(len(pages) > 1)
for page in pages[:-1]:
self.failUnlessEqual(-1, page.position)
self.failUnlessEqual(0, pages[-1].position)
def test_read_max_size(self):
page = OggPage()
page.packets = [b"1" * 255 * 255]
page.complete = False
page2 = OggPage()
page2.packets = [b"", b"foo"]
page2.sequence = 1
page2.continued = True
data = page.write() + page2.write()
fileobj = io.BytesIO(data)
self.failUnlessEqual(OggPage(fileobj), page)
self.failUnlessEqual(OggPage(fileobj), page2)
self.failUnlessRaises(EOFError, OggPage, fileobj)
def test_renumber_reread(self):
try:
fd, filename = tempfile.mkstemp(suffix=".ogg")
os.close(fd)
shutil.copy(os.path.join("tests", "data", "multipagecomment.ogg"),
filename)
fileobj = open(filename, "rb+")
OggPage.renumber(fileobj, 1002429366, 20)
fileobj.close()
fileobj = open(filename, "rb+")
OggPage.renumber(fileobj, 1002429366, 0)
fileobj.close()
finally:
try:
os.remove(filename)
except OSError:
pass
def test_renumber(self):
self.failUnlessEqual(
[page.sequence for page in self.pages], [0, 1, 2])
fileobj = io.BytesIO()
for page in self.pages:
fileobj.write(page.write())
fileobj.seek(0)
OggPage.renumber(fileobj, 1, 10)
fileobj.seek(0)
pages = [OggPage(fileobj) for i in range(3)]
self.failUnlessEqual([page.sequence for page in pages], [10, 11, 12])
fileobj.seek(0)
OggPage.renumber(fileobj, 1, 20)
fileobj.seek(0)
pages = [OggPage(fileobj) for i in range(3)]
self.failUnlessEqual([page.sequence for page in pages], [20, 21, 22])
def __init__(self, fileobj):
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x80theora"):
page = OggPage(fileobj)
if not page.first:
raise OggTheoraHeaderError(
"page has ID header, but doesn't start a stream")
data = page.packets[0]
vmaj, vmin = struct.unpack("2B", data[7:9])
if (vmaj, vmin) != (3, 2):
raise OggTheoraHeaderError(
"found Theora version %d.%d != 3.2" % (vmaj, vmin))
fps_num, fps_den = struct.unpack(">2I", data[22:30])
self.fps = fps_num / float(fps_den)
self.bitrate = cdata.uint_be(b"\x00" + data[37:40])
self.granule_shift = (cdata.ushort_be(data[40:42]) >> 5) & 0x1F
self.serial = page.serial
def test_find_last_no_serial(self):
pages = [OggPage() for i in range(10)]
for i, page in enumerate(pages):
page.sequence = i
data = io.BytesIO(b"".join([page.write() for page in pages]))
self.failUnless(OggPage.find_last(data, pages[0].serial + 1) is None)
def test_page_max_size(self):
page = OggPage()
page.packets = [b"1" * 255 * 255]
page.complete = False
page2 = OggPage()
page2.packets = [b""]
page2.sequence = 1
page2.continued = True
self.failUnlessEqual(
[b"1" * 255 * 255], OggPage.to_packets([page, page2]))
def test_find_last_really_last(self):
pages = [OggPage() for i in range(10)]
pages[-1].last = True
for i, page in enumerate(pages):
page.sequence = i
data = io.BytesIO(b"".join([page.write() for page in pages]))
self.failUnlessEqual(
OggPage.find_last(data, pages[0].serial), pages[-1])
def __init__(self, fileobj, info):
pages = []
complete = False
while not complete:
page = OggPage(fileobj)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
data = OggPage.to_packets(pages)[0] + b"\x01"
super(OggSpeexVComment, self).__init__(data, framing=False)
def __init__(self, fileobj, info):
pages = []
complete = False
while not complete:
page = OggPage(fileobj)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
data = OggPage.to_packets(pages)[0][7:]
super(OggTheoraCommentDict, self).__init__(data + b"\x01")
def _inject(self, fileobj):
"""Write tag data into the Theora comment packet/page."""
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x81theora"):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
packets[0] = b"\x81theora" + self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def __init__(self, fileobj):
page = OggPage(fileobj)
while not page.packets[0].startswith(b"OpusHead"):
page = OggPage(fileobj)
self.serial = page.serial
if not page.first:
raise OggOpusHeaderError(
"page has ID header, but doesn't start a stream")
(version, self.channels, pre_skip, orig_sample_rate, output_gain,
channel_map) = struct.unpack("<BBHIhB", page.packets[0][8:19])
self.__pre_skip = pre_skip
# only the higher 4 bits change on incombatible changes
major, minor = version >> 4, version & 0xF
if major != 0:
raise OggOpusHeaderError("version %r unsupported" % major)
def load(self, data):
# Ogg expects file objects that don't raise on read
if isinstance(data, StrictFileObject):
data = data._fileobj
page = OggPage(data)
while not page.packets[0].startswith(b"\x7FFLAC"):
page = OggPage(data)
major, minor, self.packets, flac = struct.unpack(
">BBH4s", page.packets[0][5:13])
if flac != b"fLaC":
raise OggFLACHeaderError("invalid FLAC marker (%r)" % flac)
elif (major, minor) != (1, 0):
raise OggFLACHeaderError("unknown mapping version: %d.%d" %
(major, minor))
self.serial = page.serial
# Skip over the block header.
stringobj = StrictFileObject(BytesIO(page.packets[0][17:]))
super(OggFLACStreamInfo, self).load(stringobj)
def load(self, data, info, errors='replace'):
# data should be pointing at the start of an Ogg page, after
# the first FLAC page.
pages = []
complete = False
while not complete:
page = OggPage(data)
if page.serial == info.serial:
pages.append(page)
complete = page.complete or (len(page.packets) > 1)
comment = io.BytesIO(OggPage.to_packets(pages)[0][4:])
super(OggFLACVComment, self).load(comment, errors=errors)
def setUp(self):
self.fileobj = open(os.path.join("tests", "data", "empty.ogg"), "rb")
self.page = OggPage(self.fileobj)
pages = [OggPage(), OggPage(), OggPage()]
pages[0].packets = [b"foo"]
pages[1].packets = [b"bar"]
pages[2].packets = [b"baz"]
for i in range(len(pages)):
pages[i].sequence = i
for page in pages:
page.serial = 1
self.pages = pages
def _inject(self, fileobj):
"""Write tag data into the Vorbis comment packet/page."""
# Find the old pages in the file; we'll need to remove them,
# plus grab any stray setup packet data out of them.
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x03vorbis"):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment packet.
packets[0] = b"\x03vorbis" + self.write()
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def test_crc_py25(self):
# Make sure page.write can handle both signed/unsigned int
# return values of crc32.
# http://code.google.com/p/mutagen/issues/detail?id=63
# http://docs.python.org/library/zlib.html#zlib.crc32
import zlib
old_crc = zlib.crc32
def zlib_uint(*args):
return (old_crc(*args) & 0xffffffff)
def zlib_int(*args):
return cdata.int_be(cdata.to_uint_be(old_crc(*args) & 0xffffffff))
try:
page = OggPage()
page.packets = [b"abc"]
zlib.crc32 = zlib_uint
uint_data = page.write()
zlib.crc32 = zlib_int
int_data = page.write()
finally:
zlib.crc32 = old_crc
self.failUnlessEqual(uint_data, int_data)
def _inject(self, fileobj):
"""Write tag data into the Theora comment packet/page."""
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x81theora"):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
packets[0] = b"\x81theora" + self.write(framing=False)
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj):
"""Write tag data into the Vorbis comment packet/page."""
# Find the old pages in the file; we'll need to remove them,
# plus grab any stray setup packet data out of them.
fileobj.seek(0)
page = OggPage(fileobj)
while not page.packets[0].startswith(b"\x03vorbis"):
page = OggPage(fileobj)
old_pages = [page]
while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1):
page = OggPage(fileobj)
if page.serial == old_pages[0].serial:
old_pages.append(page)
packets = OggPage.to_packets(old_pages, strict=False)
# Set the new comment packet.
packets[0] = b"\x03vorbis" + self.write()
new_pages = OggPage.from_packets(packets, old_pages[0].sequence)
OggPage.replace(fileobj, old_pages, new_pages)
def _post_tags(self, fileobj):
if self.length:
return
page = OggPage.find_last(fileobj, self.serial)
self.length = page.position / self.sample_rate
def _post_tags(self, fileobj):
page = OggPage.find_last(fileobj, self.serial)
self.length = page.position / self.sample_rate
def _post_tags(self, fileobj):
page = OggPage.find_last(fileobj, self.serial)
self.length = (page.position - self.__pre_skip) / 48000
def test_invalid_not_first(self):
page = OggPage(open(self.filename, "rb"))
page.first = False
self.failUnlessRaises(IOError, OggVorbisInfo, io.BytesIO(page.write()))
def test_theora_not_first_page(self):
page = OggPage(open(self.filename, "rb"))
page.first = False
fileobj = io.BytesIO(page.write())
self.failUnlessRaises(IOError, OggTheoraInfo, fileobj)
def __init__(self, fileobj, info):
pages = self.__get_comment_pages(fileobj, info)
data = OggPage.to_packets(pages)[0][8:] # Strip OpusTags
super(OggOpusVComment, self).__init__(data, framing=False)
def _post_tags(self, fileobj):
page = OggPage.find_last(fileobj, self.serial)
position = page.position
mask = (1 << self.granule_shift) - 1
frames = (position >> self.granule_shift) + (position & mask)
self.length = frames / self.fps
def test_one_packet_per_wiggle(self):
packets = [b"1" * 511, b"2" * 511, b"3" * 511]
pages = OggPage.from_packets(
packets, default_size=1000, wiggle_room=1000000)
self.failUnlessEqual(len(pages), 2)
self.failUnlessEqual(OggPage.to_packets(pages), packets)
def _post_tags(self, fileobj):
page = OggPage.find_last(fileobj, self.serial)
self.length = page.position / float(self.sample_rate)
def _post_tags(self, fileobj):
page = OggPage.find_last(fileobj, self.serial)
position = page.position
mask = (1 << self.granule_shift) - 1
frames = (position >> self.granule_shift) + (position & mask)
self.length = frames / float(self.fps)
