def __read_metadata_block(self, file):
byte = ord(file.read(1))
size = to_int_be(file.read(3))
try:
data = file.read(size)
if len(data) != size:
raise error(
"file said %d bytes, read %d bytes" % (size, len(data)))
block = self.METADATA_BLOCKS[byte & 0x7F](data)
except (IndexError, TypeError):
block = MetadataBlock(data)
block.code = byte & 0x7F
self.metadata_blocks.append(block)
else:
self.metadata_blocks.append(block)
if block.code == VCFLACDict.code:
if self.tags is None: self.tags = block
else: raise FLACVorbisError("> 1 Vorbis comment block found")
elif block.code == CueSheet.code:
if self.cuesheet is None: self.cuesheet = block
else: raise error("> 1 CueSheet block found")
elif block.code == SeekTable.code:
if self.seektable is None: self.seektable = block
else: raise error("> 1 SeekTable block found")
return (byte >> 7) ^ 1
def test_group_padding(self):
blocks = [Padding(b"\x00" * 20), Padding(b"\x00" * 30),
MetadataBlock(b"foobar")]
blocks[-1].code = 0
length1 = len(MetadataBlock.writeblocks(blocks))
MetadataBlock.group_padding(blocks)
length2 = len(MetadataBlock.writeblocks(blocks))
self.failUnlessEqual(length1, length2)
self.failUnlessEqual(len(blocks), 2)
def test_change(self):
b = MetadataBlock(b"foobar")
b.data = b"quux"
self.failUnlessEqual(b.write(), b"quux")
def test_not_empty(self):
self.failUnlessEqual(MetadataBlock(b"foobar").write(), b"foobar")
def test_save_unknown_block(self):
block = MetadataBlock(b"test block data")
block.code = 99
self.flac.metadata_blocks.append(block)
self.flac.save()
def test_empty(self):
self.failUnlessEqual(MetadataBlock("").write(), "")
