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SickRage/lib/hachoir_parser/audio/real_audio.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

91 lines
3.7 KiB
Python

"""
RealAudio (.ra) parser
Author: Mike Melanson
References:
http://wiki.multimedia.cx/index.php?title=RealMedia
Samples:
http://samples.mplayerhq.hu/real/RA/
"""
from lib.hachoir_parser import Parser
from lib.hachoir_core.field import (FieldSet,
UInt8, UInt16, UInt32,
Bytes, RawBytes, String,
PascalString8)
from lib.hachoir_core.tools import humanFrequency
from lib.hachoir_core.text_handler import displayHandler
from lib.hachoir_core.endian import BIG_ENDIAN
class Metadata(FieldSet):
def createFields(self):
yield PascalString8(self, "title", charset="ISO-8859-1")
yield PascalString8(self, "author", charset="ISO-8859-1")
yield PascalString8(self, "copyright", charset="ISO-8859-1")
yield PascalString8(self, "comment", charset="ISO-8859-1")
class RealAudioFile(Parser):
MAGIC = ".ra\xFD"
PARSER_TAGS = {
"id": "real_audio",
"category": "audio",
"file_ext": ["ra"],
"mime": (u"audio/x-realaudio", u"audio/x-pn-realaudio"),
"min_size": 6*8,
"magic": ((MAGIC, 0),),
"description": u"Real audio (.ra)",
}
endian = BIG_ENDIAN
def validate(self):
if self["signature"].value != self.MAGIC:
return "Invalid signature"
if self["version"].value not in (3, 4):
return "Unknown version"
return True
def createFields(self):
yield Bytes(self, "signature", 4, r"RealAudio identifier ('.ra\xFD')")
yield UInt16(self, "version", "Version")
if self["version"].value == 3:
yield UInt16(self, "header_size", "Header size")
yield RawBytes(self, "Unknown1", 10)
yield UInt32(self, "data_size", "Data size")
yield Metadata(self, "metadata")
yield UInt8(self, "Unknown2")
yield PascalString8(self, "FourCC")
audio_size = self["data_size"].value
else: # version = 4
yield UInt16(self, "reserved1", "Reserved, should be 0")
yield String(self, "ra4sig", 4, "'.ra4' signature")
yield UInt32(self, "filesize", "File size (minus 40 bytes)")
yield UInt16(self, "version2", "Version 2 (always equal to version)")
yield UInt32(self, "headersize", "Header size (minus 16)")
yield UInt16(self, "codec_flavor", "Codec flavor")
yield UInt32(self, "coded_frame_size", "Coded frame size")
yield RawBytes(self, "unknown1", 12)
yield UInt16(self, "subpacketh", "Subpacket h (?)")
yield UInt16(self, "frame_size", "Frame size")
yield UInt16(self, "sub_packet_size", "Subpacket size")
yield UInt16(self, "unknown2", "Unknown")
yield displayHandler(UInt16(self, "sample_rate", "Sample rate"), humanFrequency)
yield UInt16(self, "unknown3", "Unknown")
yield UInt16(self, "sample_size", "Sample size")
yield UInt16(self, "channels", "Channels")
yield PascalString8(self, "Interleaving ID String")
yield PascalString8(self, "FourCC")
yield RawBytes(self, "unknown4", 3)
yield Metadata(self, "metadata")
audio_size = (self["filesize"].value + 40) - (self["headersize"].value + 16)
if 0 < audio_size:
yield RawBytes(self, "audio_data", audio_size)
def createDescription(self):
if (self["version"].value == 3):
return "RealAudio v3 file, '%s' codec" % self["FourCC"].value
elif (self["version"].value == 4):
return "RealAudio v4 file, '%s' codec, %s, %u channels" % (
self["FourCC"].value, self["sample_rate"].display, self["channels"].value)
else:
return "Real audio"