Files
scummvm/devtools/create_bladerunner/subtitles/quotesSpreadsheetCreator/audFileDecode.py
T
Thanasis Antoniou 43a3eed2b2 DEVTOOLS: Handle empty AUD file in Blade Runner
French localization has an empty AUD file. Only the header is present and seems corrupted

This is DCLER_0030_00041ECE in TLK0A. It is an unused audio file ("boop" in ENG localization), but skipping it would cause issues with the translation excel, ie. one row missing. The fix is to create a placeholder empty wav file in order to not ignore this empty quote. The bug affected the spreasheet creator tool.
2019-01-21 16:27:26 +02:00

236 lines
7.9 KiB
Python

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
#
ctypesLibFound = False
structLibFound = False
try:
import ctypes
except ImportError:
print "[Error] ctypes python library is required to be installed!"
else:
ctypesLibFound = True
try:
import struct
except ImportError:
print "[Error] struct python library is required to be installed!"
else:
structLibFound = True
if (not ctypesLibFound) \
or (not structLibFound):
sys.stdout.write("[Error] Errors were found when trying to import required python libraries\n")
sys.exit(1)
from struct import *
MY_MODULE_VERSION = "0.60"
MY_MODULE_NAME = "audFileDecode"
aud_ima_index_adjust_table = [-1, -1, -1, -1, 2, 4, 6, 8]
# aud_ima_step_table has 89 entries
aud_ima_step_table = [
7, 8, 9, 10, 11, 12, 13, 14, 16,
17, 19, 21, 23, 25, 28, 31, 34, 37,
41, 45, 50, 55, 60, 66, 73, 80, 88,
97, 107, 118, 130, 143, 157, 173, 190, 209,
230, 253, 279, 307, 337, 371, 408, 449, 494,
544, 598, 658, 724, 796, 876, 963, 1060, 1166,
1282, 1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749,
3024, 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484,
7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899, 15289,
16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767 ]
aud_ws_step_table2 = [-2, -1, 0, 1]
aud_ws_step_table4 = [
-9, -8, -6, -5, -4, -3, -2, -1,
0, 1, 2, 3, 4, 5, 6, 8
]
# (const xccTHA::byte* audio_in, short* audio_out, int& index, int& sample, int cs_chunk)
# index and sample are passed by reference and changed here...
# audio_out is definitely affected!
def aud_decode_ima_chunk(audioBufferIn, index, sample, cs_chunk):
code = -1
delta = -1
step = -1
audioBufferOut = []
#for i in range(0, len(audioBufferIn)):
#if self.m_traceModeEnabled:
# print '[Debug] %d: %d'%(i, int(audioBufferIn[i]))
for sample_index in range (0, cs_chunk):
try:
code = audioBufferIn[sample_index >> 1]
except:
code = 0xa9 # dummy workaround because the c code is accessing an out of bounds index sometimes due to this shift here
#print "[Debug] cs_chunk: %d, sample_index: %d, shifted: %d, code: %d" % (cs_chunk, sample_index, sample_index >> 1, int(audioBufferIn[sample_index >> 1]))
#print "[Debug] cs_chunk: %s, sample_index: %s, shifted: %s, code: %s" % \
# (''.join('{:04X}'.format(cs_chunk)), ''.join('{:02X}'.format(sample_index)), ''.join('{:02X}'.format(sample_index >> 1)), ''.join('{:04X}'.format(int(code))))
code = code >> 4 if (sample_index & 1) else code & 0xf
step = aud_ima_step_table[index]
delta = step >> 3
if (code & 1):
delta += step >> 2
if (code & 2):
delta += step >> 1
if (code & 4):
delta += step
if (code & 8):
sample -= delta
if (sample < -32768):
sample = -32768
else:
sample += delta
if (sample > 32767):
sample = 32767
audioBufferOut.append(ctypes.c_short( sample ).value )
#audioBufferOut.append(sample) # it's not different from above... ctypes.c_short( sample ).value
#if self.m_traceModeEnabled:
# print "[Debug] audio_out[%s]: %s" % (''.join('{:02X}'.format(sample_index)), ''.join('{:02X}'.format(audioBufferOut[sample_index])));
index += aud_ima_index_adjust_table[code & 7]
if (index < 0):
index = 0
elif (index > 88):
index = 88
## output buffer of shorts
#binDataOut = struct.pack('h'*len(audioBufferOut), *audioBufferOut)
#return (binDataOut, index, sample)
return (audioBufferOut, index, sample)
#
#
#
def aud_decode_clip8(v):
if (v < 0):
return 0
return 0xff if (v > 0xff) else v
#
#
#
# (const xccTHA::byte* r, char* w, int cb_s, int cb_d)
def aud_decode_ws_chunk(inputChunkBuffer, cb_s, cb_d):
outputChunkBuffer = []
inpChBuffIter = 0
outChBuffIter = 0
if (cb_s == cb_d):
# outputChunkBuffer = inputChunkBuffer[:cb_s] # memcpy(w, r, cb_s) # FIX
for mcp in range(0, cb_s):
outputChunkBuffer.append(ctypes.c_char(inputChunkBuffer[inpChBuffIter + mcp]).value)
#binDataOut = struct.pack('b'*len(outputChunkBuffer), *outputChunkBuffer)
#return binDataOut
return outputChunkBuffer
# const xccTHA::byte* s_end = inputChunkBuffer + cb_s; # FIX
s_end = inpChBuffIter + cb_s
sample = ctypes.c_int(0x80).value #int sample
while (inpChBuffIter < s_end):
inpChBuffIter += 1
count = ctypes.c_char(inputChunkBuffer[inpChBuffIter] & 0x3f).value # char count
switchKey = inputChunkBuffer[inpChBuffIter - 1] >> 6 # inputChunkBuffer[-1] # b[-1] is *(b - 1)
if switchKey == 0:
count += 1
for iter in range (count, 0, -1):
inpChBuffIter += 1
code = ctypes.c_int(inputChunkBuffer[inpChBuffIter]).value # int code
# assignment in C was right to left so:
# *(outputChunkBuffer++) = sample = clip8(sample + aud_ws_step_table2[code & 3])
# is:
# *(outputChunkBuffer++) = (sample = clip8(sample + aud_ws_step_table2[code & 3]))
# which is equivalent to these two commands:
# sample = clip8(sample + aud_ws_step_table2[code & 3])
# *(outputChunkBuffer++) = sample
# SO:
sample = aud_decode_clip8(sample + aud_ws_step_table2[code & 3])
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
sample = aud_decode_clip8(sample + aud_ws_step_table2[code >> 2 & 3])
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
sample = aud_decode_clip8(sample + aud_ws_step_table2[code >> 4 & 3])
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
sample = aud_decode_clip8(sample + aud_ws_step_table2[code >> 6])
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
elif switchKey == 1:
count += 1
for iter in range (count, 0, -1):
inpChBuffIter += 1
code = inputChunkBuffer[inpChBuffIter] # int code
sample += aud_ws_step_table4[code & 0xf]
sample = aud_decode_clip8(sample)
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
sample += aud_ws_step_table4[code >> 4]
sample = aud_decode_clip8(sample)
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
elif switchKey == 2:
if (count & 0x20):
#sample += static_cast<char>(count << 3) >> 3
#*(outputChunkBuffer++) = sample
sample += ((count & 0xFF) << 3 ) >> 3
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += 1
else:
count += 1
# memcpy(outputChunkBuffer, inputChunkBuffer, count) # FIX
for mcp in range(0, count):
outputChunkBuffer.append(ctypes.c_char(inputChunkBuffer[inpChBuffIter + mcp]).value)
inpChBuffIter += count
outChBuffIter += count
sample = inputChunkBuffer[inpChBuffIter - 1]
else:
count += 1
# memset(outputChunkBuffer, sample, ++count)
for mst in range(0, count):
outputChunkBuffer.append(ctypes.c_char(sample).value)
outChBuffIter += count;
# output buffer of chars
#binDataOut = struct.pack('b'*len(outputChunkBuffer), *outputChunkBuffer)
#return binDataOut
return outputChunkBuffer
#
#
#
class audFileDecode:
m_index = -1
m_sample = -1
m_traceModeEnabled = False
# traceModeEnabled is bool to enable more printed debug messages
def __init__(self, traceModeEnabled = True, index = 0, sample = 0):
self.m_traceModeEnabled = traceModeEnabled
self.m_index = index;
self.m_sample = sample;
return
def index(self):
return self.m_index
# (const xccTHA::byte* audio_in, short* audio_out, int cs_chunk)
def decode_chunk(self, audio_in, cs_chunk):
(audio_Out, outIndex, outSample) = aud_decode_ima_chunk(audio_in, self.m_index, self.m_sample, cs_chunk)
self.m_index = outIndex
self.m_sample = outSample
return audio_Out
if __name__ == '__main__':
# main()
decodeInstance = audFileDecode()
if decodeInstance.m_traceModeEnabled:
print "[Debug] Running %s (%s) as main module" % (MY_MODULE_NAME, MY_MODULE_VERSION)
else:
#debug
#print "[Debug] Running %s (%s) imported from another module" % (MY_MODULE_NAME, MY_MODULE_VERSION)
pass