--- /dev/null
+/*
+ *
+ * Bluetooth low-complexity, subband codec (SBC) library
+ *
+ * Copyright (C) 2004-2008 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
+ *
+ */
+
+#include <byteswap.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define COMPOSE_ID(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
+#define LE_SHORT(v) (v)
+#define LE_INT(v) (v)
+#define BE_SHORT(v) bswap_16(v)
+#define BE_INT(v) bswap_32(v)
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define COMPOSE_ID(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
+#define LE_SHORT(v) bswap_16(v)
+#define LE_INT(v) bswap_32(v)
+#define BE_SHORT(v) (v)
+#define BE_INT(v) (v)
+#else
+#error "Wrong endian"
+#endif
+
+#define AU_MAGIC COMPOSE_ID('.','s','n','d')
+
+#define AU_FMT_ULAW 1
+#define AU_FMT_LIN8 2
+#define AU_FMT_LIN16 3
+
+struct au_header {
+ uint32_t magic; /* '.snd' */
+ uint32_t hdr_size; /* size of header (min 24) */
+ uint32_t data_size; /* size of data */
+ uint32_t encoding; /* see to AU_FMT_XXXX */
+ uint32_t sample_rate; /* sample rate */
+ uint32_t channels; /* number of channels (voices) */
+};
#include <sys/soundcard.h>
#include "sbc.h"
+#include "formats.h"
#define BUF_SIZE 8192
}
printf("%d Hz, %d channels\n", frequency, channels);
- if (!tofile) {
+ 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 < 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",
#include <stdint.h>
#include <string.h>
#include <getopt.h>
-#include <byteswap.h>
#include <sys/stat.h>
#include "sbc.h"
-
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define COMPOSE_ID(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
-#define LE_SHORT(v) (v)
-#define LE_INT(v) (v)
-#define BE_SHORT(v) bswap_16(v)
-#define BE_INT(v) bswap_32(v)
-#elif __BYTE_ORDER == __BIG_ENDIAN
-#define COMPOSE_ID(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
-#define LE_SHORT(v) bswap_16(v)
-#define LE_INT(v) bswap_32(v)
-#define BE_SHORT(v) (v)
-#define BE_INT(v) (v)
-#else
-#error "Wrong endian"
-#endif
-
-#define AU_MAGIC COMPOSE_ID('.','s','n','d')
-
-#define AU_FMT_ULAW 1
-#define AU_FMT_LIN8 2
-#define AU_FMT_LIN16 3
-
-struct au_header {
- uint32_t magic; /* '.snd' */
- uint32_t hdr_size; /* size of header (min 24) */
- uint32_t data_size; /* size of data */
- uint32_t encoding; /* see to AU_FMT_XXXX */
- uint32_t sample_rate; /* sample rate */
- uint32_t channels; /* number of channels (voices) */
-};
+#include "formats.h"
static ssize_t __read(int fd, void *buf, size_t count)
{