1
0
mirror of https://github.com/moparisthebest/SickRage synced 2024-11-18 07:15:13 -05:00
SickRage/lib/hachoir_parser/audio/aiff.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

128 lines
3.9 KiB
Python

"""
Audio Interchange File Format (AIFF) parser.
Author: Victor Stinner
Creation: 27 december 2006
"""
from lib.hachoir_parser import Parser
from lib.hachoir_core.field import (FieldSet,
UInt16, UInt32, Float80, TimestampMac32,
RawBytes, NullBytes,
String, Enum, PascalString32)
from lib.hachoir_core.endian import BIG_ENDIAN
from lib.hachoir_core.text_handler import filesizeHandler
from lib.hachoir_core.tools import alignValue
from lib.hachoir_parser.audio.id3 import ID3v2
CODEC_NAME = {
'ACE2': u"ACE 2-to-1",
'ACE8': u"ACE 8-to-3",
'MAC3': u"MAC 3-to-1",
'MAC6': u"MAC 6-to-1",
'NONE': u"None",
'sowt': u"Little-endian, no compression",
}
class Comment(FieldSet):
def createFields(self):
yield TimestampMac32(self, "timestamp")
yield PascalString32(self, "text")
def parseText(self):
yield String(self, "text", self["size"].value)
def parseID3(self):
yield ID3v2(self, "id3v2", size=self["size"].value*8)
def parseComment(self):
yield UInt16(self, "nb_comment")
for index in xrange(self["nb_comment"].value):
yield Comment(self, "comment[]")
def parseCommon(self):
yield UInt16(self, "nb_channel")
yield UInt32(self, "nb_sample")
yield UInt16(self, "sample_size")
yield Float80(self, "sample_rate")
yield Enum(String(self, "codec", 4, strip="\0", charset="ASCII"), CODEC_NAME)
def parseVersion(self):
yield TimestampMac32(self, "timestamp")
def parseSound(self):
yield UInt32(self, "offset")
yield UInt32(self, "block_size")
size = (self.size - self.current_size) // 8
if size:
yield RawBytes(self, "data", size)
class Chunk(FieldSet):
TAG_INFO = {
'COMM': ('common', "Common chunk", parseCommon),
'COMT': ('comment', "Comment", parseComment),
'NAME': ('name', "Name", parseText),
'AUTH': ('author', "Author", parseText),
'FVER': ('version', "Version", parseVersion),
'SSND': ('sound', "Sound data", parseSound),
'ID3 ': ('id3', "ID3", parseID3),
}
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = (8 + alignValue(self["size"].value, 2)) * 8
tag = self["type"].value
if tag in self.TAG_INFO:
self._name, self._description, self._parser = self.TAG_INFO[tag]
else:
self._parser = None
def createFields(self):
yield String(self, "type", 4, "Signature (FORM)", charset="ASCII")
yield filesizeHandler(UInt32(self, "size"))
size = self["size"].value
if size:
if self._parser:
for field in self._parser(self):
yield field
if size % 2:
yield NullBytes(self, "padding", 1)
else:
yield RawBytes(self, "data", size)
class AiffFile(Parser):
PARSER_TAGS = {
"id": "aiff",
"category": "audio",
"file_ext": ("aif", "aiff", "aifc"),
"mime": (u"audio/x-aiff",),
"magic_regex": (("FORM.{4}AIF[CF]", 0),),
"min_size": 12*8,
"description": "Audio Interchange File Format (AIFF)"
}
endian = BIG_ENDIAN
def validate(self):
if self.stream.readBytes(0, 4) != "FORM":
return "Invalid signature"
if self.stream.readBytes(8*8, 4) not in ("AIFF", "AIFC"):
return "Invalid type"
return True
def createFields(self):
yield String(self, "signature", 4, "Signature (FORM)", charset="ASCII")
yield filesizeHandler(UInt32(self, "filesize"))
yield String(self, "type", 4, "Form type (AIFF or AIFC)", charset="ASCII")
while not self.eof:
yield Chunk(self, "chunk[]")
def createDescription(self):
if self["type"].value == "AIFC":
return "Audio Interchange File Format Compressed (AIFC)"
else:
return "Audio Interchange File Format (AIFF)"
def createContentSize(self):
return self["filesize"].value * 8