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authorXusheng <xusheng@vector35.com>2021-07-01 12:34:30 +0800
committerXusheng Li <xushengli@protonmail.com>2021-07-05 10:11:47 +0800
commit13ff200ba134b8704f37eca99c42b70dab0d17dc (patch)
tree876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/ogg.py
parent4039a800349dcd587833d3e27d9137e4649818f4 (diff)
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/ogg.py')
-rw-r--r--python/examples/kaitai/ogg.py113
1 files changed, 0 insertions, 113 deletions
diff --git a/python/examples/kaitai/ogg.py b/python/examples/kaitai/ogg.py
deleted file mode 100644
index 7396c1b3..00000000
--- a/python/examples/kaitai/ogg.py
+++ /dev/null
@@ -1,113 +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
-import collections
-
-
-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 Ogg(KaitaiStruct):
- """Ogg is a popular media container format, which provides basic
- streaming / buffering mechanisms and is content-agnostic. Most
- popular codecs that are used within Ogg streams are Vorbis (thus
- making Ogg/Vorbis streams) and Theora (Ogg/Theora).
-
- Ogg stream is a sequence Ogg pages. They can be read sequentially,
- or one can jump into arbitrary stream location and scan for "OggS"
- sync code to find the beginning of a new Ogg page and continue
- decoding the stream contents from that one.
- """
- SEQ_FIELDS = ["pages"]
- 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['pages']['start'] = self._io.pos()
- self.pages = []
- i = 0
- while not self._io.is_eof():
- if not 'arr' in self._debug['pages']:
- self._debug['pages']['arr'] = []
- self._debug['pages']['arr'].append({'start': self._io.pos()})
- _t_pages = self._root.Page(self._io, self, self._root)
- _t_pages._read()
- self.pages.append(_t_pages)
- self._debug['pages']['arr'][len(self.pages) - 1]['end'] = self._io.pos()
- i += 1
-
- self._debug['pages']['end'] = self._io.pos()
-
- class Page(KaitaiStruct):
- """Ogg page is a basic unit of data in an Ogg bitstream, usually
- it's around 4-8 KB, with a maximum size of 65307 bytes.
- """
- SEQ_FIELDS = ["sync_code", "version", "reserved1", "is_end_of_stream", "is_beginning_of_stream", "is_continuation", "granule_pos", "bitstream_serial", "page_seq_num", "crc32", "num_segments", "len_segments", "segments"]
- 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['sync_code']['start'] = self._io.pos()
- self.sync_code = self._io.ensure_fixed_contents(b"\x4F\x67\x67\x53")
- self._debug['sync_code']['end'] = self._io.pos()
- self._debug['version']['start'] = self._io.pos()
- self.version = self._io.ensure_fixed_contents(b"\x00")
- self._debug['version']['end'] = self._io.pos()
- self._debug['reserved1']['start'] = self._io.pos()
- self.reserved1 = self._io.read_bits_int(5)
- self._debug['reserved1']['end'] = self._io.pos()
- self._debug['is_end_of_stream']['start'] = self._io.pos()
- self.is_end_of_stream = self._io.read_bits_int(1) != 0
- self._debug['is_end_of_stream']['end'] = self._io.pos()
- self._debug['is_beginning_of_stream']['start'] = self._io.pos()
- self.is_beginning_of_stream = self._io.read_bits_int(1) != 0
- self._debug['is_beginning_of_stream']['end'] = self._io.pos()
- self._debug['is_continuation']['start'] = self._io.pos()
- self.is_continuation = self._io.read_bits_int(1) != 0
- self._debug['is_continuation']['end'] = self._io.pos()
- self._io.align_to_byte()
- self._debug['granule_pos']['start'] = self._io.pos()
- self.granule_pos = self._io.read_u8le()
- self._debug['granule_pos']['end'] = self._io.pos()
- self._debug['bitstream_serial']['start'] = self._io.pos()
- self.bitstream_serial = self._io.read_u4le()
- self._debug['bitstream_serial']['end'] = self._io.pos()
- self._debug['page_seq_num']['start'] = self._io.pos()
- self.page_seq_num = self._io.read_u4le()
- self._debug['page_seq_num']['end'] = self._io.pos()
- self._debug['crc32']['start'] = self._io.pos()
- self.crc32 = self._io.read_u4le()
- self._debug['crc32']['end'] = self._io.pos()
- self._debug['num_segments']['start'] = self._io.pos()
- self.num_segments = self._io.read_u1()
- self._debug['num_segments']['end'] = self._io.pos()
- self._debug['len_segments']['start'] = self._io.pos()
- self.len_segments = [None] * (self.num_segments)
- for i in range(self.num_segments):
- if not 'arr' in self._debug['len_segments']:
- self._debug['len_segments']['arr'] = []
- self._debug['len_segments']['arr'].append({'start': self._io.pos()})
- self.len_segments[i] = self._io.read_u1()
- self._debug['len_segments']['arr'][i]['end'] = self._io.pos()
-
- self._debug['len_segments']['end'] = self._io.pos()
- self._debug['segments']['start'] = self._io.pos()
- self.segments = [None] * (self.num_segments)
- for i in range(self.num_segments):
- if not 'arr' in self._debug['segments']:
- self._debug['segments']['arr'] = []
- self._debug['segments']['arr'].append({'start': self._io.pos()})
- self.segments[i] = self._io.read_bytes(self.len_segments[i])
- self._debug['segments']['arr'][i]['end'] = self._io.pos()
-
- self._debug['segments']['end'] = self._io.pos()
-
-
-