2 * This file is part of DisOrder.
3 * Copyright (C) 2009 Richard Kettlewell
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 static int input_bits
= 16;
31 static int input_channels
= 2;
32 static int input_rate
= 44100;
33 static int input_signed
= 1;
34 static int input_endian
= ENDIAN_NATIVE
;
35 static int output_bits
= 16;
36 static int output_channels
= 2;
37 static int output_rate
= 44100;
38 static int output_signed
= 1;
39 static int output_endian
= ENDIAN_NATIVE
;
41 static const struct option options
[] = {
42 { "help", no_argument
, 0, 'h' },
43 { "input-bits", required_argument
, 0, 'b' },
44 { "input-channels", required_argument
, 0, 'c' },
45 { "input-rate", required_argument
, 0, 'r' },
46 { "input-signed", no_argument
, 0, 's' },
47 { "input-unsigned", no_argument
, 0, 'u' },
48 { "input-endian", required_argument
, 0, 'e' },
49 { "output-bits", required_argument
, 0, 'B' },
50 { "output-channels", required_argument
, 0, 'C' },
51 { "output-rate", required_argument
, 0, 'R' },
52 { "output-signed", no_argument
, 0, 'S' },
53 { "output-unsigned", no_argument
, 0, 'U' },
54 { "output-endian", required_argument
, 0, 'E' },
58 /* display usage message and terminate */
59 static void help(void) {
61 " resample [OPTIONS] < INPUT > OUTPUT\n"
63 " --help, -h Display usage message\n"
65 " --input-bits, -b N Bits/sample (16)\n"
66 " --input-channels, -c N Samples/frame (2)\n"
67 " --input-rate, -r N Frames/second (44100)\n"
68 " --input-signed, -s Signed samples (yes)\n"
69 " --input-unsigned, -u Unsigned samples\n"
70 " --input-endian, -e big|little Sample endianness (native)\n"
72 " --output-bits, -B N Bits/sample (16)\n"
73 " --output-channels, -C N Samples/frame (2)\n"
74 " --output-rate, -R N Frames/second (44100)\n"
75 " --output-signed, -S Signed samples (yes)\n"
76 " --output-unsigned, -U Unsigned samples\n"
77 " --output-endian, -E big|little Sample endianness (native)\n"
78 "Defaults are in brackets.\n"
80 "Feeds raw sample data through resample_convert().\n");
85 static void converted(uint8_t *bytes
,
87 void attribute((unused
)) *cd
) {
89 ssize_t n
= write(1, bytes
, nbytes
);
91 disorder_fatal(errno
, "writing to stdout");
97 int main(int argc
, char **argv
) {
101 if(!setlocale(LC_CTYPE
, ""))
102 disorder_fatal(errno
, "error calling setlocale");
103 while((n
= getopt_long(argc
, argv
, "+hb:c:r:sue:B:C:R:SUE:",
107 case 'b': input_bits
= atoi(optarg
); break;
108 case 'c': input_channels
= atoi(optarg
); break;
109 case 'r': input_rate
= atoi(optarg
); break;
110 case 's': input_signed
= 1; break;
111 case 'u': input_signed
= 1; break;
114 case 'b': case 'B': input_endian
= ENDIAN_BIG
; break;
115 case 'l': case 'L': input_endian
= ENDIAN_LITTLE
; break;
116 case 'n': case 'N': input_endian
= ENDIAN_NATIVE
; break;
117 default: disorder_fatal(0, "unknown endianness '%s'", optarg
);
120 case 'B': output_bits
= atoi(optarg
); break;
121 case 'C': output_channels
= atoi(optarg
); break;
122 case 'R': output_rate
= atoi(optarg
); break;
123 case 'S': output_signed
= 1; break;
124 case 'U': output_signed
= 1; break;
127 case 'b': case 'B': output_endian
= ENDIAN_BIG
; break;
128 case 'l': case 'L': output_endian
= ENDIAN_LITTLE
; break;
129 case 'n': case 'N': output_endian
= ENDIAN_NATIVE
; break;
130 default: disorder_fatal(0, "unknown endianness '%s'", optarg
);
133 default: disorder_fatal(0, "invalid option");
136 struct resampler rs
[1];
137 resample_init(rs
, input_bits
, input_channels
, input_rate
, input_signed
,
138 input_endian
, output_bits
, output_channels
, output_rate
,
139 output_signed
, output_endian
);
140 #define BUFFER_SIZE (1024 * 1024)
141 uint8_t *buffer
= xmalloc_noptr(BUFFER_SIZE
);
145 while(used
|| !eof
) {
147 ssize_t r
= read(0, buffer
+ used
, BUFFER_SIZE
- used
);
149 disorder_fatal(errno
, "reading from stdin");
154 size_t consumed
= resample_convert(rs
, buffer
, used
, eof
, converted
, 0);
155 memmove(buffer
, buffer
+ consumed
, used
- consumed
);
159 disorder_fatal(errno
, "closing stdout");