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-rw-r--r--sbc/sbcdec.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/sbc/sbcdec.c b/sbc/sbcdec.c
deleted file mode 100644
index 7008e884..00000000
--- a/sbc/sbcdec.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- *
- * Bluetooth low-complexity, subband codec (SBC) decoder
- *
- * Copyright (C) 2008-2010 Nokia Corporation
- * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/soundcard.h>
-
-#include "sbc.h"
-#include "formats.h"
-
-#define BUF_SIZE 8192
-
-static int verbose = 0;
-
-static void decode(char *filename, char *output, int tofile)
-{
- unsigned char buf[BUF_SIZE], *stream;
- struct stat st;
- sbc_t sbc;
- int fd, ad, pos, streamlen, framelen, count;
- size_t len;
- int format = AFMT_S16_BE, frequency, channels;
- ssize_t written;
-
- if (stat(filename, &st) < 0) {
- fprintf(stderr, "Can't get size of file %s: %s\n",
- filename, strerror(errno));
- return;
- }
-
- stream = malloc(st.st_size);
-
- if (!stream) {
- fprintf(stderr, "Can't allocate memory for %s: %s\n",
- filename, strerror(errno));
- return;
- }
-
- fd = open(filename, O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "Can't open file %s: %s\n",
- filename, strerror(errno));
- goto free;
- }
-
- if (read(fd, stream, st.st_size) != st.st_size) {
- fprintf(stderr, "Can't read content of %s: %s\n",
- filename, strerror(errno));
- close(fd);
- goto free;
- }
-
- close(fd);
-
- pos = 0;
- streamlen = st.st_size;
-
- if (tofile)
- ad = open(output, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- else
- ad = open(output, O_WRONLY, 0);
-
- if (ad < 0) {
- fprintf(stderr, "Can't open output %s: %s\n",
- output, strerror(errno));
- goto free;
- }
-
- sbc_init(&sbc, 0L);
- sbc.endian = SBC_BE;
-
- framelen = sbc_decode(&sbc, stream, streamlen, buf, sizeof(buf), &len);
- channels = sbc.mode == SBC_MODE_MONO ? 1 : 2;
- switch (sbc.frequency) {
- case SBC_FREQ_16000:
- frequency = 16000;
- break;
-
- case SBC_FREQ_32000:
- frequency = 32000;
- break;
-
- case SBC_FREQ_44100:
- frequency = 44100;
- break;
-
- case SBC_FREQ_48000:
- frequency = 48000;
- break;
- default:
- frequency = 0;
- }
-
- if (verbose) {
- fprintf(stderr,"decoding %s with rate %d, %d subbands, "
- "%d bits, allocation method %s and mode %s\n",
- filename, frequency, sbc.subbands * 4 + 4, sbc.bitpool,
- sbc.allocation == SBC_AM_SNR ? "SNR" : "LOUDNESS",
- sbc.mode == SBC_MODE_MONO ? "MONO" :
- sbc.mode == SBC_MODE_STEREO ?
- "STEREO" : "JOINTSTEREO");
- }
-
- if (tofile) {
- struct au_header au_hdr;
-
- au_hdr.magic = AU_MAGIC;
- au_hdr.hdr_size = BE_INT(24);
- au_hdr.data_size = BE_INT(0);
- au_hdr.encoding = BE_INT(AU_FMT_LIN16);
- au_hdr.sample_rate = BE_INT(frequency);
- au_hdr.channels = BE_INT(channels);
-
- written = write(ad, &au_hdr, sizeof(au_hdr));
- if (written < (ssize_t) sizeof(au_hdr)) {
- fprintf(stderr, "Failed to write header\n");
- goto close;
- }
- } else {
- if (ioctl(ad, SNDCTL_DSP_SETFMT, &format) < 0) {
- fprintf(stderr, "Can't set audio format on %s: %s\n",
- output, strerror(errno));
- goto close;
- }
-
- if (ioctl(ad, SNDCTL_DSP_CHANNELS, &channels) < 0) {
- fprintf(stderr, "Can't set number of channels on %s: %s\n",
- output, strerror(errno));
- goto close;
- }
-
- if (ioctl(ad, SNDCTL_DSP_SPEED, &frequency) < 0) {
- fprintf(stderr, "Can't set audio rate on %s: %s\n",
- output, strerror(errno));
- goto close;
- }
- }
-
- count = len;
-
- while (framelen > 0) {
- /* we have completed an sbc_decode at this point sbc.len is the
- * length of the frame we just decoded count is the number of
- * decoded bytes yet to be written */
-
- if (count + len >= BUF_SIZE) {
- /* buffer is too full to stuff decoded audio in so it
- * must be written to the device */
- written = write(ad, buf, count);
- if (written > 0)
- count -= written;
- }
-
- /* sanity check */
- if (count + len >= BUF_SIZE) {
- fprintf(stderr,
- "buffer size of %d is too small for decoded"
- " data (%lu)\n", BUF_SIZE, (unsigned long) (len + count));
- exit(1);
- }
-
- /* push the pointer in the file forward to the next bit to be
- * decoded tell the decoder to decode up to the remaining
- * length of the file (!) */
- pos += framelen;
- framelen = sbc_decode(&sbc, stream + pos, streamlen - pos,
- buf + count, sizeof(buf) - count, &len);
-
- /* increase the count */
- count += len;
- }
-
- if (count > 0) {
- written = write(ad, buf, count);
- if (written > 0)
- count -= written;
- }
-
-close:
- sbc_finish(&sbc);
-
- close(ad);
-
-free:
- free(stream);
-}
-
-static void usage(void)
-{
- printf("SBC decoder utility ver %s\n", VERSION);
- printf("Copyright (c) 2004-2010 Marcel Holtmann\n\n");
-
- printf("Usage:\n"
- "\tsbcdec [options] file(s)\n"
- "\n");
-
- printf("Options:\n"
- "\t-h, --help Display help\n"
- "\t-v, --verbose Verbose mode\n"
- "\t-d, --device <dsp> Sound device\n"
- "\t-f, --file <file> Decode to a file\n"
- "\n");
-}
-
-static struct option main_options[] = {
- { "help", 0, 0, 'h' },
- { "device", 1, 0, 'd' },
- { "verbose", 0, 0, 'v' },
- { "file", 1, 0, 'f' },
- { 0, 0, 0, 0 }
-};
-
-int main(int argc, char *argv[])
-{
- char *output = NULL;
- int i, opt, tofile = 0;
-
- while ((opt = getopt_long(argc, argv, "+hvd:f:",
- main_options, NULL)) != -1) {
- switch(opt) {
- case 'h':
- usage();
- exit(0);
-
- case 'v':
- verbose = 1;
- break;
-
- case 'd':
- free(output);
- output = strdup(optarg);
- tofile = 0;
- break;
-
- case 'f' :
- free(output);
- output = strdup(optarg);
- tofile = 1;
- break;
-
- default:
- exit(1);
- }
- }
-
- argc -= optind;
- argv += optind;
- optind = 0;
-
- if (argc < 1) {
- usage();
- exit(1);
- }
-
- for (i = 0; i < argc; i++)
- decode(argv[i], output ? output : "/dev/dsp", tofile);
-
- free(output);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-07 11:56:11 +0000