1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/*
* asap2wav.c - converter of ASAP-supported formats to WAV files
*
* Copyright (C) 2005-2009 Piotr Fusik
*
* This file is part of ASAP (Another Slight Atari Player),
* see http://asap.sourceforge.net
*
* ASAP 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; either version 2 of the License,
* or (at your option) any later version.
*
* ASAP 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.
*
* You should have received a copy of the GNU General Public License
* along with ASAP; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "asap.h"
static const char *output_file = NULL;
static abool output_header = TRUE;
static int song = -1;
static ASAP_SampleFormat format = ASAP_FORMAT_S16_LE;
static int duration = -1;
static int mute_mask = 0;
static void print_help(void)
{
printf(
"Usage: asap2wav [OPTIONS] INPUTFILE...\n"
"Each INPUTFILE must be in a supported format:\n"
"SAP, CMC, CM3, CMR, CMS, DMC, DLT, MPT, MPD, RMT, TMC, TM8 or TM2.\n"
"Options:\n"
"-o FILE --output=FILE Set output file name\n"
"-o - --output=- Write to standard output\n"
"-s SONG --song=SONG Select subsong number (zero-based)\n"
"-t TIME --time=TIME Set output length (MM:SS format)\n"
"-b --byte-samples Output 8-bit samples\n"
"-w --word-samples Output 16-bit samples (default)\n"
" --raw Output raw audio (no WAV header)\n"
"-m CHANNELS --mute=CHANNELS Mute POKEY channels (1-8)\n"
"-h --help Display this information\n"
"-v --version Display version information\n"
);
}
static void fatal_error(const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stderr, "asap2wav: ");
vfprintf(stderr, format, args);
fputc('\n', stderr);
va_end(args);
exit(1);
}
static void set_song(const char *s)
{
song = 0;
do {
if (*s < '0' || *s > '9')
fatal_error("subsong number must be an integer");
song = 10 * song + *s++ - '0';
if (song >= ASAP_SONGS_MAX)
fatal_error("maximum subsong number is %d", ASAP_SONGS_MAX - 1);
} while (*s != '\0');
}
static void set_time(const char *s)
{
duration = ASAP_ParseDuration(s);
if (duration <= 0)
fatal_error("invalid time format");
}
static void set_mute_mask(const char *s)
{
int mask = 0;
while (*s != '\0') {
if (*s >= '1' && *s <= '8')
mask |= 1 << (*s - '1');
s++;
}
mute_mask = mask;
}
static void process_file(const char *input_file)
{
FILE *fp;
static byte module[ASAP_MODULE_MAX];
int module_len;
static ASAP_State asap;
int n_bytes;
static byte buffer[8192];
if (strlen(input_file) >= FILENAME_MAX)
fatal_error("filename too long");
fp = fopen(input_file, "rb");
if (fp == NULL)
fatal_error("cannot open %s", input_file);
module_len = fread(module, 1, sizeof(module), fp);
fclose(fp);
if (!ASAP_Load(&asap, input_file, module, module_len))
fatal_error("%s: format not supported", input_file);
if (song < 0)
song = asap.module_info.default_song;
if (song >= asap.module_info.songs) {
fatal_error("you have requested subsong %d ...\n"
"... but %s contains only %d subsongs",
song, input_file, asap.module_info.songs);
}
if (duration < 0) {
duration = asap.module_info.durations[song];
if (duration < 0)
duration = 180 * 1000;
}
ASAP_PlaySong(&asap, song, duration);
ASAP_MutePokeyChannels(&asap, mute_mask);
if (output_file == NULL) {
static char output_default[FILENAME_MAX];
strcpy(output_default, input_file);
ASAP_ChangeExt(output_default, output_header ? "wav" : "raw");
output_file = output_default;
}
if (output_file[0] == '-' && output_file[1] == '\0')
fp = stdout;
else {
fp = fopen(output_file, "wb");
if (fp == NULL)
fatal_error("cannot write %s", output_file);
}
if (output_header) {
ASAP_GetWavHeader(&asap, buffer, format);
fwrite(buffer, 1, ASAP_WAV_HEADER_BYTES, fp);
}
do {
n_bytes = ASAP_Generate(&asap, buffer, sizeof(buffer), format);
if (fwrite(buffer, 1, n_bytes, fp) != n_bytes) {
fclose(fp);
fatal_error("error writing to %s", output_file);
}
} while (n_bytes == sizeof(buffer));
if (!(output_file[0] == '-' && output_file[1] == '\0'))
fclose(fp);
output_file = NULL;
song = -1;
duration = -1;
}
int main(int argc, char *argv[])
{
const char *options_error = "no input files";
int i;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-') {
process_file(arg);
options_error = NULL;
continue;
}
options_error = "options must be specified before the input file";
if (arg[1] == 'o' && arg[2] == '\0')
output_file = argv[++i];
else if (strncmp(arg, "--output=", 9) == 0)
output_file = arg + 9;
else if (arg[1] == 's' && arg[2] == '\0')
set_song(argv[++i]);
else if (strncmp(arg, "--song=", 7) == 0)
set_song(arg + 7);
else if (arg[1] == 't' && arg[2] == '\0')
set_time(argv[++i]);
else if (strncmp(arg, "--time=", 7) == 0)
set_time(arg + 7);
else if ((arg[1] == 'b' && arg[2] == '\0')
|| strcmp(arg, "--byte-samples") == 0)
format = ASAP_FORMAT_U8;
else if ((arg[1] == 'w' && arg[2] == '\0')
|| strcmp(arg, "--word-samples") == 0)
format = ASAP_FORMAT_S16_LE;
else if (strcmp(arg, "--raw") == 0)
output_header = FALSE;
else if (arg[1] == 'm' && arg[2] == '\0')
set_mute_mask(argv[++i]);
else if (strncmp(arg, "--mute=", 7) == 0)
set_mute_mask(arg + 7);
else if ((arg[1] == 'h' && arg[2] == '\0')
|| strcmp(arg, "--help") == 0) {
print_help();
options_error = NULL;
}
else if ((arg[1] == 'v' && arg[2] == '\0')
|| strcmp(arg, "--version") == 0) {
printf("ASAP2WAV " ASAP_VERSION "\n");
options_error = NULL;
}
else
fatal_error("unknown option: %s", arg);
}
if (options_error != NULL) {
fprintf(stderr, "asap2wav: %s\n", options_error);
print_help();
return 1;
}
return 0;
}
|
