1 /* ResidualVM - A 3D game interpreter
2 *
3 * ResidualVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include <cstdio>
24 #include <cstring>
25
get_be_uint32(char * pos)26 int get_be_uint32(char *pos) {
27 unsigned char *ucpos = reinterpret_cast<unsigned char *>(pos);
28 return (ucpos[0] << 24) | (ucpos[1] << 16) | (ucpos[2] << 8) | ucpos[3];
29 }
30
write_le_uint32(unsigned val)31 void write_le_uint32(unsigned val) {
32 putc(val, stdout);
33 putc(val >> 8, stdout);
34 putc(val >> 16, stdout);
35 putc(val >> 24, stdout);
36 }
37
write_le_uint16(unsigned short val)38 void write_le_uint16(unsigned short val) {
39 putc(val, stdout);
40 putc(val >> 8, stdout);
41 }
42
main()43 int main() {
44 char block[1024];
45 fread(block, 8, 1, stdin); // skip iMUS header
46 fread(block, 8, 1, stdin); // read MAP header
47 int mapSize = get_be_uint32(block + 4);
48 int numBits = 16, rate = 22050, channels = 2;
49 for (int mapPos = 0; mapPos < mapSize;) {
50 fread(block, 8, 1, stdin);
51 int blockSize = get_be_uint32(block + 4);
52 if (memcmp(block, "FRMT", 4) == 0) {
53 fread(block, blockSize, 1, stdin);
54 numBits = get_be_uint32(block + 8);
55 rate = get_be_uint32(block + 12);
56 channels = get_be_uint32(block + 16);
57 } else {
58 fread(block, blockSize, 1, stdin);
59 }
60 mapPos += (blockSize + 8);
61 }
62 fread(block, 8, 1, stdin);
63 int dataSize = get_be_uint32(block + 4);
64 fputs("RIFF", stdout);
65 write_le_uint32(dataSize + 36);
66 fputs("WAVEfmt ", stdout);
67 write_le_uint32(16);
68 write_le_uint16(1);
69 write_le_uint16(channels);
70 write_le_uint32(rate);
71 write_le_uint32(channels * rate * (numBits / 8));
72 write_le_uint16(channels * (numBits / 8));
73 write_le_uint16(numBits);
74 fputs("data", stdout);
75 write_le_uint32(dataSize);
76 while (dataSize > 1024) {
77 fread(block, 1024, 1, stdin);
78 fwrite(block, 1024, 1, stdout);
79 dataSize -= 1024;
80 }
81 fread(block, dataSize, 1, stdin);
82 fwrite(block, dataSize, 1, stdout);
83 return 0;
84 }
85