Celtic Minstrel
b2626d8755
- Hiss in female scream sound removed (ADoS) - Startup music dehissed by extracting it from the Mac resource file (CM) and doing further processing to reduce the hiss (ADoS) - Sound 99 (formerly a null sound) replaced by sound 60 from the Mac resource file (CM) - Includes the Python script used to convert extracted 'snd ' resources to WAV
71 lines
2.4 KiB
Python
Executable File
71 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python2
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from __future__ import division
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from math import ceil
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import struct, sys
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if len(sys.argv) < 1:
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print "No input files specified!"
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sys.exit(1)
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arguments = sys.argv[1:]
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def writeWAV(fname, fmt, chans, sampRate, bps, sndData):
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print 'Channels:', chans, 'Sample Rate:', sampRate, 'Bits per sample:', bps
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blockSz = (chans * bps) / 8
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avgBytesPerSec = blockSz * sampRate
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with open(fname, 'w') as output:
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output.write('RIFF')
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output.write(struct.pack('<L', 44 + len(sndData)))
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output.write('WAVEfmt ')
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output.write(struct.pack('<L2H2L2H', 16, fmt, chans, long(sampRate), avgBytesPerSec, blockSz, bps))
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output.write('data')
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output.write(struct.pack('<L', len(sndData)))
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output.write(sndData)
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for fname in arguments:
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outfname = fname.replace('.sfil','.wav')
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print "Converting", fname, "->", outfname
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with open(fname, 'rb') as sndfile:
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fmt, = struct.unpack('<h', sndfile.read(2))
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if fmt == 1:
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# A type 1 sound
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numMods, = struct.unpack('<h', sndfile.read(2))
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while numMods > 0:
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modNum, modInit = struct.unpack('<HL', sndfile.read(6))
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# I don't think we need this data, so we'll discard it.
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numMods -= 1
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numCmds, = struct.unpack('<h', sndfile.read(2))
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while numCmds > 0:
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cmd, p1, p2 = struct.unpack('<Hhl4x', sndfile.read(12))
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numCmds -= 1
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sz, sampRate, loopS, loopE, fmt, baseFreq = struct.unpack('<LLLLBB', sndfile.read(18))
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sampRate /= 0x10000 # Because it's stored as a fixed-point number
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if fmt == 0:
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# A basic sound
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sndData = sndfile.read(sz)
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writeWAV(outfname, 1, 1, long(sampRate), 8, sndData)
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elif fmt == 0xfe:
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print "Error: Cannot convert compressed type 1 sounds!"
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elif fmt == 0xff:
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# An extended sound
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print "Error: Cannot convert extended type 1 sounds!"
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else:
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print "Error: Invalid type 1 sound format!"
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elif fmt == 2:
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# A type 2 sound
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refC, numCmds = struct.unpack('<hh', sndfile.read(4))
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while numCmds > 0:
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cmd, p1, p2 = struct.unpack('<Hhl4x', sndfile.read(12))
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numCmds -= 1
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sz, sampRate, loopS, loopE, fmt, baseFreq = struct.unpack('<LLLLBB', sndfile.read(18))
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sampRate /= 0x10000 # Because it's stored as a fixed-point number
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sndData = sndfile.read()
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writeWAV(outfname, 1, 1, long(sampRate), 8, sndData)
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else:
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# Invalid
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print "Error: This is not a type 1 or type 2 sound resource!"
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print "Format is #%i" % fmt
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print "Finished!"
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