diff options
| author | Xusheng <xusheng@vector35.com> | 2021-07-01 12:34:30 +0800 |
|---|---|---|
| committer | Xusheng Li <xushengli@protonmail.com> | 2021-07-05 10:11:47 +0800 |
| commit | 13ff200ba134b8704f37eca99c42b70dab0d17dc (patch) | |
| tree | 876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/swf.py | |
| parent | 4039a800349dcd587833d3e27d9137e4649818f4 (diff) | |
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/swf.py')
| -rw-r--r-- | python/examples/kaitai/swf.py | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/python/examples/kaitai/swf.py b/python/examples/kaitai/swf.py deleted file mode 100644 index dc39fd00..00000000 --- a/python/examples/kaitai/swf.py +++ /dev/null @@ -1,403 +0,0 @@ -# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild - -from pkg_resources import parse_version -from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO -from enum import Enum -import collections -import zlib - - -if parse_version(ks_version) < parse_version('0.7'): - raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version)) - -class Swf(KaitaiStruct): - """SWF files are used by Adobe Flash (AKA Shockwave Flash, Macromedia - Flash) to encode rich interactive multimedia content and are, - essentially, a container for special bytecode instructions to play - back that content. In early 2000s, it was dominant rich multimedia - web format (.swf files were integrated into web pages and played - back with a browser plugin), but its usage largely declined in - 2010s, as HTML5 and performant browser-native solutions - (i.e. JavaScript engines and graphical approaches, such as WebGL) - emerged. - - There are a lot of versions of SWF (~36), format is somewhat - documented by Adobe. - - .. seealso:: - Source - https://www.adobe.com/content/dam/acom/en/devnet/pdf/swf-file-format-spec.pdf - """ - - class Compressions(Enum): - zlib = 67 - none = 70 - lzma = 90 - - class TagType(Enum): - end_of_file = 0 - place_object = 4 - remove_object = 5 - set_background_color = 9 - define_sound = 14 - place_object2 = 26 - remove_object2 = 28 - frame_label = 43 - export_assets = 56 - script_limits = 65 - file_attributes = 69 - place_object3 = 70 - symbol_class = 76 - metadata = 77 - define_scaling_grid = 78 - do_abc = 82 - define_scene_and_frame_label_data = 86 - SEQ_FIELDS = ["compression", "signature", "version", "len_file", "plain_body", "zlib_body"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['compression']['start'] = self._io.pos() - self.compression = KaitaiStream.resolve_enum(self._root.Compressions, self._io.read_u1()) - self._debug['compression']['end'] = self._io.pos() - self._debug['signature']['start'] = self._io.pos() - self.signature = self._io.ensure_fixed_contents(b"\x57\x53") - self._debug['signature']['end'] = self._io.pos() - self._debug['version']['start'] = self._io.pos() - self.version = self._io.read_u1() - self._debug['version']['end'] = self._io.pos() - self._debug['len_file']['start'] = self._io.pos() - self.len_file = self._io.read_u4le() - self._debug['len_file']['end'] = self._io.pos() - if self.compression == self._root.Compressions.none: - self._debug['plain_body']['start'] = self._io.pos() - self._raw_plain_body = self._io.read_bytes_full() - io = KaitaiStream(BytesIO(self._raw_plain_body)) - self.plain_body = self._root.SwfBody(io, self, self._root) - self.plain_body._read() - self._debug['plain_body']['end'] = self._io.pos() - - if self.compression == self._root.Compressions.zlib: - self._debug['zlib_body']['start'] = self._io.pos() - self._raw__raw_zlib_body = self._io.read_bytes_full() - self._raw_zlib_body = zlib.decompress(self._raw__raw_zlib_body) - io = KaitaiStream(BytesIO(self._raw_zlib_body)) - self.zlib_body = self._root.SwfBody(io, self, self._root) - self.zlib_body._read() - self._debug['zlib_body']['end'] = self._io.pos() - - - class Rgb(KaitaiStruct): - SEQ_FIELDS = ["r", "g", "b"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['r']['start'] = self._io.pos() - self.r = self._io.read_u1() - self._debug['r']['end'] = self._io.pos() - self._debug['g']['start'] = self._io.pos() - self.g = self._io.read_u1() - self._debug['g']['end'] = self._io.pos() - self._debug['b']['start'] = self._io.pos() - self.b = self._io.read_u1() - self._debug['b']['end'] = self._io.pos() - - - class DoAbcBody(KaitaiStruct): - SEQ_FIELDS = ["flags", "name", "abcdata"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['flags']['start'] = self._io.pos() - self.flags = self._io.read_u4le() - self._debug['flags']['end'] = self._io.pos() - self._debug['name']['start'] = self._io.pos() - self.name = (self._io.read_bytes_term(0, False, True, True)).decode(u"ASCII") - self._debug['name']['end'] = self._io.pos() - self._debug['abcdata']['start'] = self._io.pos() - self.abcdata = self._io.read_bytes_full() - self._debug['abcdata']['end'] = self._io.pos() - - - class SwfBody(KaitaiStruct): - SEQ_FIELDS = ["rect", "frame_rate", "frame_count", "file_attributes_tag", "tags"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['rect']['start'] = self._io.pos() - self.rect = self._root.Rect(self._io, self, self._root) - self.rect._read() - self._debug['rect']['end'] = self._io.pos() - self._debug['frame_rate']['start'] = self._io.pos() - self.frame_rate = self._io.read_u2le() - self._debug['frame_rate']['end'] = self._io.pos() - self._debug['frame_count']['start'] = self._io.pos() - self.frame_count = self._io.read_u2le() - self._debug['frame_count']['end'] = self._io.pos() - if self._root.version >= 8: - self._debug['file_attributes_tag']['start'] = self._io.pos() - self.file_attributes_tag = self._root.Tag(self._io, self, self._root) - self.file_attributes_tag._read() - self._debug['file_attributes_tag']['end'] = self._io.pos() - - self._debug['tags']['start'] = self._io.pos() - self.tags = [] - i = 0 - while not self._io.is_eof(): - if not 'arr' in self._debug['tags']: - self._debug['tags']['arr'] = [] - self._debug['tags']['arr'].append({'start': self._io.pos()}) - _t_tags = self._root.Tag(self._io, self, self._root) - _t_tags._read() - self.tags.append(_t_tags) - self._debug['tags']['arr'][len(self.tags) - 1]['end'] = self._io.pos() - i += 1 - - self._debug['tags']['end'] = self._io.pos() - - - class Rect(KaitaiStruct): - SEQ_FIELDS = ["b1", "skip"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['b1']['start'] = self._io.pos() - self.b1 = self._io.read_u1() - self._debug['b1']['end'] = self._io.pos() - self._debug['skip']['start'] = self._io.pos() - self.skip = self._io.read_bytes(self.num_bytes) - self._debug['skip']['end'] = self._io.pos() - - @property - def num_bits(self): - if hasattr(self, '_m_num_bits'): - return self._m_num_bits if hasattr(self, '_m_num_bits') else None - - self._m_num_bits = (self.b1 >> 3) - return self._m_num_bits if hasattr(self, '_m_num_bits') else None - - @property - def num_bytes(self): - if hasattr(self, '_m_num_bytes'): - return self._m_num_bytes if hasattr(self, '_m_num_bytes') else None - - self._m_num_bytes = (((self.num_bits * 4) - 3) + 7) // 8 - return self._m_num_bytes if hasattr(self, '_m_num_bytes') else None - - - class Tag(KaitaiStruct): - SEQ_FIELDS = ["record_header", "tag_body"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['record_header']['start'] = self._io.pos() - self.record_header = self._root.RecordHeader(self._io, self, self._root) - self.record_header._read() - self._debug['record_header']['end'] = self._io.pos() - self._debug['tag_body']['start'] = self._io.pos() - _on = self.record_header.tag_type - if _on == self._root.TagType.define_sound: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.DefineSoundBody(io, self, self._root) - self.tag_body._read() - elif _on == self._root.TagType.set_background_color: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.Rgb(io, self, self._root) - self.tag_body._read() - elif _on == self._root.TagType.script_limits: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.ScriptLimitsBody(io, self, self._root) - self.tag_body._read() - elif _on == self._root.TagType.do_abc: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.DoAbcBody(io, self, self._root) - self.tag_body._read() - elif _on == self._root.TagType.export_assets: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.SymbolClassBody(io, self, self._root) - self.tag_body._read() - elif _on == self._root.TagType.symbol_class: - self._raw_tag_body = self._io.read_bytes(self.record_header.len) - io = KaitaiStream(BytesIO(self._raw_tag_body)) - self.tag_body = self._root.SymbolClassBody(io, self, self._root) - self.tag_body._read() - else: - self.tag_body = self._io.read_bytes(self.record_header.len) - self._debug['tag_body']['end'] = self._io.pos() - - - class SymbolClassBody(KaitaiStruct): - SEQ_FIELDS = ["num_symbols", "symbols"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['num_symbols']['start'] = self._io.pos() - self.num_symbols = self._io.read_u2le() - self._debug['num_symbols']['end'] = self._io.pos() - self._debug['symbols']['start'] = self._io.pos() - self.symbols = [None] * (self.num_symbols) - for i in range(self.num_symbols): - if not 'arr' in self._debug['symbols']: - self._debug['symbols']['arr'] = [] - self._debug['symbols']['arr'].append({'start': self._io.pos()}) - _t_symbols = self._root.SymbolClassBody.Symbol(self._io, self, self._root) - _t_symbols._read() - self.symbols[i] = _t_symbols - self._debug['symbols']['arr'][i]['end'] = self._io.pos() - - self._debug['symbols']['end'] = self._io.pos() - - class Symbol(KaitaiStruct): - SEQ_FIELDS = ["tag", "name"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['tag']['start'] = self._io.pos() - self.tag = self._io.read_u2le() - self._debug['tag']['end'] = self._io.pos() - self._debug['name']['start'] = self._io.pos() - self.name = (self._io.read_bytes_term(0, False, True, True)).decode(u"ASCII") - self._debug['name']['end'] = self._io.pos() - - - - class DefineSoundBody(KaitaiStruct): - - class SamplingRates(Enum): - rate_5_5_khz = 0 - rate_11_khz = 1 - rate_22_khz = 2 - rate_44_khz = 3 - - class Bps(Enum): - sound_8_bit = 0 - sound_16_bit = 1 - - class Channels(Enum): - mono = 0 - stereo = 1 - SEQ_FIELDS = ["id", "format", "sampling_rate", "bits_per_sample", "num_channels", "num_samples"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['id']['start'] = self._io.pos() - self.id = self._io.read_u2le() - self._debug['id']['end'] = self._io.pos() - self._debug['format']['start'] = self._io.pos() - self.format = self._io.read_bits_int(4) - self._debug['format']['end'] = self._io.pos() - self._debug['sampling_rate']['start'] = self._io.pos() - self.sampling_rate = KaitaiStream.resolve_enum(self._root.DefineSoundBody.SamplingRates, self._io.read_bits_int(2)) - self._debug['sampling_rate']['end'] = self._io.pos() - self._debug['bits_per_sample']['start'] = self._io.pos() - self.bits_per_sample = KaitaiStream.resolve_enum(self._root.DefineSoundBody.Bps, self._io.read_bits_int(1)) - self._debug['bits_per_sample']['end'] = self._io.pos() - self._debug['num_channels']['start'] = self._io.pos() - self.num_channels = KaitaiStream.resolve_enum(self._root.DefineSoundBody.Channels, self._io.read_bits_int(1)) - self._debug['num_channels']['end'] = self._io.pos() - self._io.align_to_byte() - self._debug['num_samples']['start'] = self._io.pos() - self.num_samples = self._io.read_u4le() - self._debug['num_samples']['end'] = self._io.pos() - - - class RecordHeader(KaitaiStruct): - SEQ_FIELDS = ["tag_code_and_length", "big_len"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['tag_code_and_length']['start'] = self._io.pos() - self.tag_code_and_length = self._io.read_u2le() - self._debug['tag_code_and_length']['end'] = self._io.pos() - if self.small_len == 63: - self._debug['big_len']['start'] = self._io.pos() - self.big_len = self._io.read_s4le() - self._debug['big_len']['end'] = self._io.pos() - - - @property - def tag_type(self): - if hasattr(self, '_m_tag_type'): - return self._m_tag_type if hasattr(self, '_m_tag_type') else None - - self._m_tag_type = KaitaiStream.resolve_enum(self._root.TagType, (self.tag_code_and_length >> 6)) - return self._m_tag_type if hasattr(self, '_m_tag_type') else None - - @property - def small_len(self): - if hasattr(self, '_m_small_len'): - return self._m_small_len if hasattr(self, '_m_small_len') else None - - self._m_small_len = (self.tag_code_and_length & 63) - return self._m_small_len if hasattr(self, '_m_small_len') else None - - @property - def len(self): - if hasattr(self, '_m_len'): - return self._m_len if hasattr(self, '_m_len') else None - - self._m_len = (self.big_len if self.small_len == 63 else self.small_len) - return self._m_len if hasattr(self, '_m_len') else None - - - class ScriptLimitsBody(KaitaiStruct): - SEQ_FIELDS = ["max_recursion_depth", "script_timeout_seconds"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['max_recursion_depth']['start'] = self._io.pos() - self.max_recursion_depth = self._io.read_u2le() - self._debug['max_recursion_depth']['end'] = self._io.pos() - self._debug['script_timeout_seconds']['start'] = self._io.pos() - self.script_timeout_seconds = self._io.read_u2le() - self._debug['script_timeout_seconds']['end'] = self._io.pos() - - - |
