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