Re: [Bluez-devel] AVDTP socket?

[Marcel Holtmann <marcel@holtmann.org>]

[-- Attachment #1: Type: text/plain, Size: 566 bytes --]

Hi Brad,

> actually like with the attached patch. Most of the example *.sbc files
> are working. Some of them are not working and this is maybe because the
> frame header information don't matches the SBC configuration. Or maybe
> hcidump is decoding this wrong.

and I figured out what the extra RFCOMM channel 1 on my Aiptek headphone
does. You can simply stream the SBC files over it. The attached program
will do this for you, but actually it only works on streams with two
channels. I don't know what to change to support all test SBC files.

Regards

Marcel


[-- Attachment #2: rcplay.c --]
[-- Type: text/x-csrc, Size: 2535 bytes --]

/*
 *
 *  Stream SBC files over RFCOMM
 *
 *  Copyright (C) 2004  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 version 2 as
 *  published by the Free Software Foundation;
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
 *  CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *  ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
 *  COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
 *  SOFTWARE IS DISCLAIMED.
 *
 */

#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/socket.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>

static int rfcomm_connect(bdaddr_t *src, bdaddr_t *dst, uint8_t channel)
{
	struct sockaddr_rc addr;
	int sk;

	sk = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
	if (sk < 0)
		return -1;

	memset(&addr, 0, sizeof(addr));
	addr.rc_family = AF_BLUETOOTH;
	bacpy(&addr.rc_bdaddr, src);
	if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
		close(sk);
		return -1;
	}

	memset(&addr, 0, sizeof(addr));
	addr.rc_family = AF_BLUETOOTH;
	bacpy(&addr.rc_bdaddr, dst);
	addr.rc_channel = channel;
	if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
		close(sk);
		return -1;
	}

	return sk;
}

static int stream_sbc(fd, sk)
{
	unsigned char buf[330];
	int err, len;

	while (1) {
		len = read(fd, buf, sizeof(buf));
		if (len <= 0)
			break;

		err = write(sk, buf, len);
		if (err < 0)
			break;
	}

	return 0;
}

int main(int argc, char *argv[])
{
	bdaddr_t bdaddr;
	int fd, sk;

	if (argc < 3) {
		fprintf(stderr, "Usage: rcplay <bdaddr> <filename>\n");
		exit(1);
	}

	str2ba(argv[1], &bdaddr);

	fd = open(argv[2], O_RDONLY);
	if (fd < 0) {
		perror("Can't open file");
		exit(1);
	}

	sk = rfcomm_connect(BDADDR_ANY, &bdaddr, 1);
	if (sk < 0) {
		perror("Can't open connection");
		close(fd);
		exit(1);
	}

	stream_sbc(fd, sk);

	close(sk);
	close(fd);

	return 0;
}