SickGear/lib/hachoir/field/integer.py
JackDandy 980e05cc99 Change Hachoir can't support PY2 so backport their PY3 to prevent a need for system dependant external binaries like mediainfo.
Backported 400 revisions from rev 1de4961-8897c5b (2018-2014).
Move core/benchmark, core/cmd_line, core/memory, core/profiler and core/timeout to core/optional/*
Remove metadata/qt*

PORT: Version 2.0a3 (inline with 3.0a3 @ f80c7d5).
Basic Support for XMP Packets.
tga: improvements to adhere more closely to the spec.
pdf: slightly improved parsing.
rar: fix TypeError on unknown block types.
Add MacRoman win32 codepage.
tiff/exif: support SubIFDs and tiled images.
Add method to export metadata in dictionary.
mpeg_video: don't attempt to parse Stream past length.
mpeg_video: parse ESCR correctly, add SCR value.
Change centralise CustomFragments.
field: don't set parser class if class is None, to enable autodetect.
field: add value/display for CustomFragment.
parser: inline warning to enable tracebacks in debug mode.
Fix empty bytestrings in makePrintable.
Fix contentSize in jpeg.py to account for image_data blocks.
Fix the ELF parser.
Enhance the AR archive parser.
elf parser: fix wrong wrong fields order in parsing little endian section flags.
elf parser: add s390 as a machine type.
Flesh out mp4 parser.

PORT: Version 2.0a1 (inline with 3.0a1).
Major refactoring and PEP8.
Fix ResourceWarning warnings on files. Add a close() method and support for the context manager protocol ("with obj: ...") to parsers, input and output streams.
metadata: get comment from ZIP.
Support for InputIOStream.read(0).
Fix sizeGe when size is None.
Remove unused new_seekable_field_set file.
Remove parser Mapsforge .map.
Remove parser Parallel Realities Starfighter .pak files.
sevenzip: fix for newer archives.
java: update access flags and modifiers for Java 1.7 and update description text for most recent Java.
Support ustar prefix field in tar archives.
Remove file_system* parsers.
Remove misc parsers 3d0, 3ds, gnome_keyring, msoffice*, mstask, ole*, word*.
Remove program parsers macho, nds, prc.
Support non-8bit Character subclasses.
Python parser supports Python 3.7.
Enhance mpeg_ts parser to support MTS/M2TS.
Support for creation date in tiff.
Change don't hardcode errno constant.

PORT: 1.9.1
Internal Only: The following are legacy reference to upstream commit messages.
Relevant changes up to b0a115f8.
Use integer division.
Replace HACHOIR_ERRORS with Exception.
Fix metadata.Data: make it sortable.
Import fixes from e7de492.
PORT: Version 2.0a1 (inline with 3.0a1 @ e9f8fad).
Replace hachoir.core.field with hachoir.field
Replace hachoir.core.stream with hachoir.stream
Remove the compatibility module for PY1.5 to PY2.5.
metadata: support TIFF picture.
metadata: fix string normalization.
metadata: fix datetime regex Fix hachoir bug #57.
FileFromInputStream: fix comparison between None and an int.
InputIOStream: open the file in binary mode.
2018-03-28 00:43:11 +01:00

49 lines
1.8 KiB
Python

"""
Integer field classes:
- UInt8, UInt16, UInt24, UInt32, UInt64: unsigned integer of 8, 16, 32, 64 bits ;
- Int8, Int16, Int24, Int32, Int64: signed integer of 8, 16, 32, 64 bits.
"""
from hachoir.field import Bits, FieldError
class GenericInteger(Bits):
"""
Generic integer class used to generate other classes.
"""
def __init__(self, parent, name, signed, size, description=None):
if not (8 <= size <= 16384):
raise FieldError("Invalid integer size (%s): have to be in 8..16384" % size)
Bits.__init__(self, parent, name, size, description)
self.signed = signed
def createValue(self):
return self._parent.stream.readInteger(
self.absolute_address, self.signed, self._size, self._parent.endian)
def integerFactory(name, is_signed, size, doc):
class Integer(GenericInteger):
__doc__ = doc
static_size = size
def __init__(self, parent, name, description=None):
GenericInteger.__init__(self, parent, name, is_signed, size, description)
cls = Integer
cls.__name__ = name
return cls
UInt8 = integerFactory("UInt8", False, 8, "Unsigned integer of 8 bits")
UInt16 = integerFactory("UInt16", False, 16, "Unsigned integer of 16 bits")
UInt24 = integerFactory("UInt24", False, 24, "Unsigned integer of 24 bits")
UInt32 = integerFactory("UInt32", False, 32, "Unsigned integer of 32 bits")
UInt64 = integerFactory("UInt64", False, 64, "Unsigned integer of 64 bits")
Int8 = integerFactory("Int8", True, 8, "Signed integer of 8 bits")
Int16 = integerFactory("Int16", True, 16, "Signed integer of 16 bits")
Int24 = integerFactory("Int24", True, 24, "Signed integer of 24 bits")
Int32 = integerFactory("Int32", True, 32, "Signed integer of 32 bits")
Int64 = integerFactory("Int64", True, 64, "Signed integer of 64 bits")