--- /dev/null
+/*
+ * This file is part of DisOrder.
+ * Copyright (C) 2009 Richard Kettlewell
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "common.h"
+
+#include <unistd.h>
+#include <locale.h>
+#include <errno.h>
+#include <getopt.h>
+
+#include "resample.h"
+#include "mem.h"
+#include "syscalls.h"
+#include "log.h"
+
+static int input_bits = 16;
+static int input_channels = 2;
+static int input_rate = 44100;
+static int input_signed = 1;
+static int input_endian = ENDIAN_NATIVE;
+static int output_bits = 16;
+static int output_channels = 2;
+static int output_rate = 44100;
+static int output_signed = 1;
+static int output_endian = ENDIAN_NATIVE;
+
+static const struct option options[] = {
+ { "help", no_argument, 0, 'h' },
+ { "input-bits", required_argument, 0, 'b' },
+ { "input-channels", required_argument, 0, 'c' },
+ { "input-rate", required_argument, 0, 'r' },
+ { "input-signed", no_argument, 0, 's' },
+ { "input-unsigned", no_argument, 0, 'u' },
+ { "input-endian", required_argument, 0, 'e' },
+ { "output-bits", required_argument, 0, 'B' },
+ { "output-channels", required_argument, 0, 'C' },
+ { "output-rate", required_argument, 0, 'R' },
+ { "output-signed", no_argument, 0, 'S' },
+ { "output-unsigned", no_argument, 0, 'U' },
+ { "output-endian", required_argument, 0, 'E' },
+ { 0, 0, 0, 0 }
+};
+
+/* display usage message and terminate */
+static void help(void) {
+ xprintf("Usage:\n"
+ " resample [OPTIONS] < INPUT > OUTPUT\n"
+ "Options:\n"
+ " --help, -h Display usage message\n"
+ "Input format:\n"
+ " --input-bits, -b N Bits/sample (16)\n"
+ " --input-channels, -c N Samples/frame (2)\n"
+ " --input-rate, -r N Frames/second (44100)\n"
+ " --input-signed, -s Signed samples (yes)\n"
+ " --input-unsigned, -u Unsigned samples\n"
+ " --input-endian, -e big|little Sample endianness (native)\n"
+ "Output format:\n"
+ " --output-bits, -B N Bits/sample (16)\n"
+ " --output-channels, -C N Samples/frame (2)\n"
+ " --output-rate, -R N Frames/second (44100)\n"
+ " --output-signed, -S Signed samples (yes)\n"
+ " --output-unsigned, -U Unsigned samples\n"
+ " --output-endian, -E big|little Sample endianness (native)\n"
+ "Defaults are in brackets.\n"
+ "\n"
+ "Feeds raw sample data through resample_convert().\n");
+ xfclose(stdout);
+ exit(0);
+}
+
+static void converted(uint8_t *bytes,
+ size_t nbytes,
+ void attribute((unused)) *cd) {
+ while(nbytes > 0) {
+ ssize_t n = write(1, bytes, nbytes);
+ if(n < 0)
+ disorder_fatal(errno, "writing to stdout");
+ bytes += n;
+ nbytes -= n;
+ }
+}
+
+int main(int argc, char **argv) {
+ int n;
+
+ mem_init();
+ if(!setlocale(LC_CTYPE, ""))
+ disorder_fatal(errno, "error calling setlocale");
+ while((n = getopt_long(argc, argv, "+hb:c:r:sue:B:C:R:SUE:",
+ options, 0)) >= 0) {
+ switch(n) {
+ case 'h': help();
+ case 'b': input_bits = atoi(optarg); break;
+ case 'c': input_channels = atoi(optarg); break;
+ case 'r': input_rate = atoi(optarg); break;
+ case 's': input_signed = 1; break;
+ case 'u': input_signed = 1; break;
+ case 'e':
+ switch(optarg[0]) {
+ case 'b': case 'B': input_endian = ENDIAN_BIG; break;
+ case 'l': case 'L': input_endian = ENDIAN_LITTLE; break;
+ case 'n': case 'N': input_endian = ENDIAN_NATIVE; break;
+ default: disorder_fatal(0, "unknown endianness '%s'", optarg);
+ }
+ case 'B': output_bits = atoi(optarg); break;
+ case 'C': output_channels = atoi(optarg); break;
+ case 'R': output_rate = atoi(optarg); break;
+ case 'S': output_signed = 1; break;
+ case 'U': output_signed = 1; break;
+ case 'E':
+ switch(optarg[0]) {
+ case 'b': case 'B': output_endian = ENDIAN_BIG; break;
+ case 'l': case 'L': output_endian = ENDIAN_LITTLE; break;
+ case 'n': case 'N': output_endian = ENDIAN_NATIVE; break;
+ default: disorder_fatal(0, "unknown endianness '%s'", optarg);
+ }
+ default: fatal(0, "invalid option");
+ }
+ }
+ struct resampler rs[1];
+ resample_init(rs, input_bits, input_channels, input_rate, input_signed,
+ input_endian, output_bits, output_channels, output_rate,
+ output_signed, output_endian);
+#define BUFFER_SIZE (1024 * 1024)
+ uint8_t *buffer = xmalloc_noptr(BUFFER_SIZE);
+ size_t used = 0;
+ int eof = 0;
+
+ while(used || !eof) {
+ if(!eof) {
+ ssize_t r = read(0, buffer + used, BUFFER_SIZE - used);
+ if(r < 0)
+ disorder_fatal(errno, "reading from stdin");
+ if(r == 0)
+ eof = 1;
+ used += r;
+ }
+ size_t consumed = resample_convert(rs, buffer, used, eof, converted, 0);
+ memmove(buffer, buffer + consumed, used - consumed);
+ used -= consumed;
+ }
+ if(close(1) < 0)
+ disorder_fatal(errno, "closing stdout");
+ return 0;
+}
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+fill-column:79
+indent-tabs-mode:nil
+End:
+*/
~mdw / disorder / commitdiff