Mercurial > touhou
view pytouhou/formats/fmt.py @ 673:81ad01910f4b
ecl_vm: instr 100 fix.
author | Gauvain "GovanifY" Roussel-Tarbouriech <gauvain@govanify.com> |
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date | Mon, 12 Aug 2019 20:32:08 +0200 (2019-08-12) |
parents | d1f0bb0b7a17 |
children |
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# -*- encoding: utf-8 -*- ## ## Copyright (C) 2012 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published ## by the Free Software Foundation; version 3 only. ## ## This program is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## from struct import unpack class Track: def __init__(self): self.name = '' # loop info self.intro = 0 #self.unknown self.start = 0 self.duration = 0 # WAVE header self.wFormatTag = 1 self.wChannels = 2 self.dwSamplesPerSec = 44100 self.dwAvgBytesPerSec = 176400 self.wBlockAlign = 4 self.wBitsPerSample = 16 class FMT(list): @classmethod def read(cls, file): self = cls() file.seek(0) while True: track = Track() track.name = unpack('<16s', file.read(16))[0] if not ord(track.name[0]): break # loop info track.intro, unknown, track.start, track.duration = unpack('<IIII', file.read(16)) # WAVE header (track.wFormatTag, track.wChannels, track.dwSamplesPerSec, track.dwAvgBytesPerSec, track.wBlockAlign, track.wBitsPerSample) = unpack('<HHLLHH', file.read(16)) assert track.wFormatTag == 1 # We don’t support non-PCM formats assert track.dwAvgBytesPerSec == track.dwSamplesPerSec * track.wBlockAlign assert track.wBlockAlign == track.wChannels * track.wBitsPerSample // 8 zero = file.read(4) assert b'\00\00\00\00' == zero self.append(track) return self