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| author | Andrew Lamoureux <andrew@vector35.com> | 2019-03-19 17:32:44 -0400 |
|---|---|---|
| committer | Rusty Wagner <rusty@vector35.com> | 2019-03-20 13:00:17 -0400 |
| commit | 24ead55316ac8497df5842caf4e1d51f2b799787 (patch) | |
| tree | 3dfdfae8a076445c9d24bf6d1b40e57f36ebf94a /python/examples/kaitai/id3v1_1.py | |
| parent | 411acbaa4a1d217e731d3df0b189445117be3b26 (diff) | |
kaitai: adjustments and rearrangements for python2/3 compat
Diffstat (limited to 'python/examples/kaitai/id3v1_1.py')
| -rw-r--r-- | python/examples/kaitai/id3v1_1.py | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/python/examples/kaitai/id3v1_1.py b/python/examples/kaitai/id3v1_1.py new file mode 100644 index 00000000..41b2e880 --- /dev/null +++ b/python/examples/kaitai/id3v1_1.py @@ -0,0 +1,217 @@ +# 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 +from enum import Enum + + +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 Id3v11(KaitaiStruct): + """ID3v1.1 tag is a method to store simple metadata in .mp3 files. The + tag is appended to the end of file and spans exactly 128 bytes. + + This type is supposed to be used on full .mp3 files, seeking to + proper position automatically. If you're interesting in parsing only + the tag itself, please use `id3v1_1::id3_v1_1_tag` subtype. + + .. seealso:: + Source - http://id3.org/ID3v1 + """ + SEQ_FIELDS = [] + 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): + pass + + class Id3V11Tag(KaitaiStruct): + """ID3v1.1 tag itself, a fixed size 128 byte structure. Contains + several metadata fields as fixed-size strings. + + Note that string encoding is not specified by standard, so real + encoding used would vary a lot from one implementation to + another. Most Windows-based applications tend to use "ANSI" + (i.e. locale-dependent encoding, usually one byte per + character). Some embedded applications allow selection of + charset. + """ + + class GenreEnum(Enum): + blues = 0 + classic_rock = 1 + country = 2 + dance = 3 + disco = 4 + funk = 5 + grunge = 6 + hip_hop = 7 + jazz = 8 + metal = 9 + new_age = 10 + oldies = 11 + other = 12 + pop = 13 + rnb = 14 + rap = 15 + reggae = 16 + rock = 17 + techno = 18 + industrial = 19 + alternative = 20 + ska = 21 + death_metal = 22 + pranks = 23 + soundtrack = 24 + euro_techno = 25 + ambient = 26 + trip_hop = 27 + vocal = 28 + jazz_funk = 29 + fusion = 30 + trance = 31 + classical = 32 + instrumental = 33 + acid = 34 + house = 35 + game = 36 + sound_clip = 37 + gospel = 38 + noise = 39 + alternrock = 40 + bass = 41 + soul = 42 + punk = 43 + space = 44 + meditative = 45 + instrumental_pop = 46 + instrumental_rock = 47 + ethnic = 48 + gothic = 49 + darkwave = 50 + techno_industrial = 51 + electronic = 52 + pop_folk = 53 + eurodance = 54 + dream = 55 + southern_rock = 56 + comedy = 57 + cult = 58 + gangsta = 59 + top_40 = 60 + christian_rap = 61 + pop_funk = 62 + jungle = 63 + native_american = 64 + cabaret = 65 + new_wave = 66 + psychadelic = 67 + rave = 68 + showtunes = 69 + trailer = 70 + lo_fi = 71 + tribal = 72 + acid_punk = 73 + acid_jazz = 74 + polka = 75 + retro = 76 + musical = 77 + rock_n_roll = 78 + hard_rock = 79 + folk = 80 + folk_rock = 81 + national_folk = 82 + swing = 83 + fast_fusion = 84 + bebob = 85 + latin = 86 + revival = 87 + celtic = 88 + bluegrass = 89 + avantgarde = 90 + gothic_rock = 91 + progressive_rock = 92 + psychedelic_rock = 93 + symphonic_rock = 94 + slow_rock = 95 + big_band = 96 + chorus = 97 + easy_listening = 98 + acoustic = 99 + humour = 100 + speech = 101 + chanson = 102 + opera = 103 + chamber_music = 104 + sonata = 105 + symphony = 106 + booty_bass = 107 + primus = 108 + porn_groove = 109 + satire = 110 + slow_jam = 111 + club = 112 + tango = 113 + samba = 114 + folklore = 115 + ballad = 116 + power_ballad = 117 + rhythmic_soul = 118 + freestyle = 119 + duet = 120 + punk_rock = 121 + drum_solo = 122 + a_capella = 123 + euro_house = 124 + dance_hall = 125 + SEQ_FIELDS = ["magic", "title", "artist", "album", "year", "comment", "genre"] + 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['magic']['start'] = self._io.pos() + self.magic = self._io.ensure_fixed_contents(b"\x54\x41\x47") + self._debug['magic']['end'] = self._io.pos() + self._debug['title']['start'] = self._io.pos() + self.title = self._io.read_bytes(30) + self._debug['title']['end'] = self._io.pos() + self._debug['artist']['start'] = self._io.pos() + self.artist = self._io.read_bytes(30) + self._debug['artist']['end'] = self._io.pos() + self._debug['album']['start'] = self._io.pos() + self.album = self._io.read_bytes(30) + self._debug['album']['end'] = self._io.pos() + self._debug['year']['start'] = self._io.pos() + self.year = (self._io.read_bytes(4)).decode(u"ASCII") + self._debug['year']['end'] = self._io.pos() + self._debug['comment']['start'] = self._io.pos() + self.comment = self._io.read_bytes(30) + self._debug['comment']['end'] = self._io.pos() + self._debug['genre']['start'] = self._io.pos() + self.genre = KaitaiStream.resolve_enum(self._root.Id3V11Tag.GenreEnum, self._io.read_u1()) + self._debug['genre']['end'] = self._io.pos() + + + @property + def id3v1_tag(self): + if hasattr(self, '_m_id3v1_tag'): + return self._m_id3v1_tag if hasattr(self, '_m_id3v1_tag') else None + + _pos = self._io.pos() + self._io.seek((self._io.size() - 128)) + self._debug['_m_id3v1_tag']['start'] = self._io.pos() + self._m_id3v1_tag = self._root.Id3V11Tag(self._io, self, self._root) + self._m_id3v1_tag._read() + self._debug['_m_id3v1_tag']['end'] = self._io.pos() + self._io.seek(_pos) + return self._m_id3v1_tag if hasattr(self, '_m_id3v1_tag') else None + + |
