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SickRage/lib/hachoir_parser/game/spider_man_video.py

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"""
Parser for an obscure FMV file format: bin files from the game
"The Amazing Spider-Man vs. The Kingpin" (Sega CD)
Author: Mike Melanson
Creation date: 2006-09-30
File samples: http://samples.mplayerhq.hu/game-formats/spiderman-segacd-bin/
"""
from lib.hachoir_parser import Parser
from lib.hachoir_core.field import FieldSet, UInt32, String, RawBytes
from lib.hachoir_core.endian import BIG_ENDIAN
from lib.hachoir_core.text_handler import textHandler, hexadecimal
class Chunk(FieldSet):
tag_info = {
"CONF" : ("conf[]", None, "Configuration header"),
"AUDI" : ("audio[]", None, "Audio chunk"),
"SYNC" : ("sync[]", None, "Start of video frame data"),
"IVRA" : ("ivra[]", None, "Vector codebook (?)"),
"VRAM" : ("video[]", None, "Video RAM tile pattern"),
"CRAM" : ("color[]", None, "Color RAM (palette)"),
"CEND" : ("video_end[]", None, "End of video data"),
"MEND" : ("end_file", None, "End of file"),
}
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["length"].value * 8
fourcc = self["fourcc"].value
if fourcc in self.tag_info:
self._name, self._parser, self._description = self.tag_info[fourcc]
else:
self._parser = None
self._description = "Unknown chunk: fourcc %s" % self["fourcc"].display
def createFields(self):
yield String(self, "fourcc", 4, "FourCC", charset="ASCII")
yield textHandler(UInt32(self, "length", "length"), hexadecimal)
size = self["length"].value - 8
if 0 < size:
if self._parser:
for field in self._parser(self, size):
yield field
else:
yield RawBytes(self, "data", size)
class SpiderManVideoFile(Parser):
PARSER_TAGS = {
"id": "spiderman_video",
"category": "game",
"file_ext": ("bin",),
"min_size": 8*8,
"description": "The Amazing Spider-Man vs. The Kingpin (Sega CD) FMV video"
}
endian = BIG_ENDIAN
def validate(self):
return (self.stream.readBytes(0, 4) == 'CONF')
def createFields(self):
while not self.eof:
yield Chunk(self, "chunk[]")