mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-01 00:43:37 +00:00
0d9fbc1ad7
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!
227 lines
8 KiB
Python
227 lines
8 KiB
Python
"""
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GIF picture parser.
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Author: Victor Stinner
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (FieldSet, ParserError,
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Enum, UInt8, UInt16,
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Bit, Bits, NullBytes,
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String, PascalString8, Character,
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NullBits, RawBytes)
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from lib.hachoir_parser.image.common import PaletteRGB
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from lib.hachoir_core.endian import LITTLE_ENDIAN
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from lib.hachoir_core.tools import humanDuration
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from lib.hachoir_core.text_handler import textHandler, displayHandler, hexadecimal
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# Maximum image dimension (in pixel)
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MAX_WIDTH = 6000
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MAX_HEIGHT = MAX_WIDTH
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MAX_FILE_SIZE = 100 * 1024 * 1024
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class Image(FieldSet):
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def createFields(self):
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yield UInt16(self, "left", "Left")
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yield UInt16(self, "top", "Top")
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yield UInt16(self, "width", "Width")
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yield UInt16(self, "height", "Height")
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yield Bits(self, "bpp", 3, "Bits / pixel minus one")
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yield NullBits(self, "nul", 2)
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yield Bit(self, "sorted", "Sorted??")
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yield Bit(self, "interlaced", "Interlaced?")
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yield Bit(self, "has_local_map", "Use local color map?")
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if self["has_local_map"].value:
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nb_color = 1 << (1 + self["bpp"].value)
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yield PaletteRGB(self, "local_map", nb_color, "Local color map")
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yield UInt8(self, "code_size", "LZW Minimum Code Size")
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while True:
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blen = UInt8(self, "block_len[]", "Block Length")
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yield blen
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if blen.value != 0:
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yield RawBytes(self, "data[]", blen.value, "Image Data")
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else:
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break
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def createDescription(self):
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return "Image: %ux%u pixels at (%u,%u)" % (
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self["width"].value, self["height"].value,
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self["left"].value, self["top"].value)
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DISPOSAL_METHOD = {
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0: "No disposal specified",
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1: "Do not dispose",
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2: "Restore to background color",
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3: "Restore to previous",
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}
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NETSCAPE_CODE = {
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1: "Loop count",
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}
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def parseApplicationExtension(parent):
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yield PascalString8(parent, "app_name", "Application name")
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yield UInt8(parent, "size")
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size = parent["size"].value
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if parent["app_name"].value == "NETSCAPE2.0" and size == 3:
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yield Enum(UInt8(parent, "netscape_code"), NETSCAPE_CODE)
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if parent["netscape_code"].value == 1:
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yield UInt16(parent, "loop_count")
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else:
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yield RawBytes(parent, "raw", 2)
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else:
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yield RawBytes(parent, "raw", size)
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yield NullBytes(parent, "terminator", 1, "Terminator (0)")
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def parseGraphicControl(parent):
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yield UInt8(parent, "size", "Block size (4)")
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yield Bit(parent, "has_transp", "Has transparency")
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yield Bit(parent, "user_input", "User input")
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yield Enum(Bits(parent, "disposal_method", 3), DISPOSAL_METHOD)
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yield NullBits(parent, "reserved[]", 3)
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if parent["size"].value != 4:
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raise ParserError("Invalid graphic control size")
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yield displayHandler(UInt16(parent, "delay", "Delay time in millisecond"), humanDuration)
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yield UInt8(parent, "transp", "Transparent color index")
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yield NullBytes(parent, "terminator", 1, "Terminator (0)")
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def parseComments(parent):
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while True:
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field = PascalString8(parent, "comment[]", strip=" \0\r\n\t")
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yield field
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if field.length == 0:
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break
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def parseTextExtension(parent):
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yield UInt8(parent, "block_size", "Block Size")
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yield UInt16(parent, "left", "Text Grid Left")
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yield UInt16(parent, "top", "Text Grid Top")
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yield UInt16(parent, "width", "Text Grid Width")
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yield UInt16(parent, "height", "Text Grid Height")
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yield UInt8(parent, "cell_width", "Character Cell Width")
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yield UInt8(parent, "cell_height", "Character Cell Height")
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yield UInt8(parent, "fg_color", "Foreground Color Index")
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yield UInt8(parent, "bg_color", "Background Color Index")
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while True:
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field = PascalString8(parent, "comment[]", strip=" \0\r\n\t")
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yield field
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if field.length == 0:
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break
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def defaultExtensionParser(parent):
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while True:
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size = UInt8(parent, "size[]", "Size (in bytes)")
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yield size
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if 0 < size.value:
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yield RawBytes(parent, "content[]", size.value)
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else:
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break
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class Extension(FieldSet):
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ext_code = {
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0xf9: ("graphic_ctl[]", parseGraphicControl, "Graphic control"),
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0xfe: ("comments[]", parseComments, "Comments"),
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0xff: ("app_ext[]", parseApplicationExtension, "Application extension"),
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0x01: ("text_ext[]", parseTextExtension, "Plain text extension")
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}
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def __init__(self, *args):
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FieldSet.__init__(self, *args)
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code = self["code"].value
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if code in self.ext_code:
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self._name, self.parser, self._description = self.ext_code[code]
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else:
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self.parser = defaultExtensionParser
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def createFields(self):
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yield textHandler(UInt8(self, "code", "Extension code"), hexadecimal)
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for field in self.parser(self):
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yield field
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def createDescription(self):
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return "Extension: function %s" % self["func"].display
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class ScreenDescriptor(FieldSet):
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def createFields(self):
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yield UInt16(self, "width", "Width")
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yield UInt16(self, "height", "Height")
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yield Bits(self, "bpp", 3, "Bits per pixel minus one")
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yield Bit(self, "reserved", "(reserved)")
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yield Bits(self, "color_res", 3, "Color resolution minus one")
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yield Bit(self, "global_map", "Has global map?")
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yield UInt8(self, "background", "Background color")
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yield UInt8(self, "pixel_aspect_ratio", "Pixel Aspect Ratio")
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def createDescription(self):
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colors = 1 << (self["bpp"].value+1)
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return "Screen descriptor: %ux%u pixels %u colors" \
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% (self["width"].value, self["height"].value, colors)
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class GifFile(Parser):
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endian = LITTLE_ENDIAN
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separator_name = {
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"!": "Extension",
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",": "Image",
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";": "Terminator"
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}
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PARSER_TAGS = {
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"id": "gif",
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"category": "image",
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"file_ext": ("gif",),
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"mime": (u"image/gif",),
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"min_size": (6 + 7 + 1 + 9)*8, # signature + screen + separator + image
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"magic": (("GIF87a", 0), ("GIF89a", 0)),
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"description": "GIF picture"
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}
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def validate(self):
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if self.stream.readBytes(0, 6) not in ("GIF87a", "GIF89a"):
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return "Wrong header"
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if self["screen/width"].value == 0 or self["screen/height"].value == 0:
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return "Invalid image size"
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if MAX_WIDTH < self["screen/width"].value:
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return "Image width too big (%u)" % self["screen/width"].value
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if MAX_HEIGHT < self["screen/height"].value:
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return "Image height too big (%u)" % self["screen/height"].value
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return True
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def createFields(self):
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# Header
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yield String(self, "magic", 3, "File magic code", charset="ASCII")
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yield String(self, "version", 3, "GIF version", charset="ASCII")
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yield ScreenDescriptor(self, "screen")
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if self["screen/global_map"].value:
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bpp = (self["screen/bpp"].value+1)
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yield PaletteRGB(self, "color_map", 1 << bpp, "Color map")
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self.color_map = self["color_map"]
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else:
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self.color_map = None
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self.images = []
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while True:
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code = Enum(Character(self, "separator[]", "Separator code"), self.separator_name)
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yield code
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code = code.value
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if code == "!":
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yield Extension(self, "extensions[]")
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elif code == ",":
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yield Image(self, "image[]")
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elif code == ";":
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# GIF Terminator
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break
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else:
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raise ParserError("Wrong GIF image separator: 0x%02X" % ord(code))
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def createContentSize(self):
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field = self["image[0]"]
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start = field.absolute_address + field.size
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end = start + MAX_FILE_SIZE*8
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pos = self.stream.searchBytes("\0;", start, end)
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if pos:
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return pos + 16
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return None
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