[deb_shairplay.git] / src / shairplay.c

/**
 *  Copyright (C) 2012-2013  Juho Vähä-Herttua
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *  
 *  The above copyright notice and this permission notice shall be included
 *  in all copies or substantial portions of the Software.
 *  
 *  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.
 *  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 *  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 *  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 *  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>

#ifdef WIN32
# include <windows.h>
#endif

#include <shairplay/dnssd.h>
#include <shairplay/raop.h>

#include <ao/ao.h>

#include "config.h"

typedef struct {
	char apname[56];
	char password[56];
	unsigned short port;
	char hwaddr[6];

	char ao_driver[56];
	char ao_devicename[56];
	char ao_deviceid[16];
} shairplay_options_t;

typedef struct {
	ao_device *device;

	int buffering;
	int buflen;
	char buffer[8192];

	float volume;
} shairplay_session_t;


static int running;

#ifndef WIN32

#include <signal.h>
static void
signal_handler(int sig)
{
	switch (sig) {
	case SIGINT:
	case SIGTERM:
		running = 0;
		break;
	}
}
static void
init_signals(void)
{
	struct sigaction sigact;

	sigact.sa_handler = signal_handler;
	sigemptyset(&sigact.sa_mask);
	sigact.sa_flags = 0;
	sigaction(SIGINT, &sigact, NULL);
	sigaction(SIGTERM, &sigact, NULL);
}

#endif


static int
parse_hwaddr(const char *str, char *hwaddr, int hwaddrlen)
{
	int slen, i;

	slen = 3*hwaddrlen-1;
	if (strlen(str) != slen) {
		return 1;
	}
	for (i=0; i<slen; i++) {
		if (str[i] == ':' && (i%3 == 2)) {
			continue;
		}
		if (str[i] >= '0' && str[i] <= '9') {
			continue;
		}
		if (str[i] >= 'a' && str[i] <= 'f') {
			continue;
		}
		return 1;
	}
	for (i=0; i<hwaddrlen; i++) {
		hwaddr[i] = (char) strtol(str+(i*3), NULL, 16);
	}
	return 0;
}

static ao_device *
audio_open_device(shairplay_options_t *opt, int bits, int channels, int samplerate)
{
	ao_device *device = NULL;
	ao_option *ao_options = NULL;
	ao_sample_format format;
	int driver_id;

	/* Get the libao driver ID */
	if (strlen(opt->ao_driver)) {
		driver_id = ao_driver_id(opt->ao_driver);
	} else {
		driver_id = ao_default_driver_id();
	}

	/* Add all available libao options */
	if (strlen(opt->ao_devicename)) {
		ao_append_option(&ao_options, "dev", opt->ao_devicename);
	}
	if (strlen(opt->ao_deviceid)) {
		ao_append_option(&ao_options, "id", opt->ao_deviceid);
	}

	/* Set audio format */
	memset(&format, 0, sizeof(format));
	format.bits = bits;
	format.channels = channels;
	format.rate = samplerate;
	format.byte_format = AO_FMT_NATIVE;

	/* Try opening the actual device */
	device = ao_open_live(driver_id, &format, ao_options);
	ao_free_options(ao_options);
	return device;
}

static void *
audio_init(void *cls, int bits, int channels, int samplerate)
{
	shairplay_options_t *options = cls;
	shairplay_session_t *session;

	session = calloc(1, sizeof(shairplay_session_t));
	assert(session);

	session->device = audio_open_device(options, bits, channels, samplerate);
	if (session->device == NULL) {
		printf("Error opening device %d\n", errno);
	}
	assert(session->device);

	session->buffering = 1;
	session->volume = 1.0f;
	return session;
}

static int
audio_output(shairplay_session_t *session, const void *buffer, int buflen)
{
	short *shortbuf;
	char tmpbuf[4096];
	int tmpbuflen, i;

	tmpbuflen = (buflen > sizeof(tmpbuf)) ? sizeof(tmpbuf) : buflen;
	memcpy(tmpbuf, buffer, tmpbuflen);
	if (ao_is_big_endian()) {
		for (i=0; i<tmpbuflen/2; i++) {
			char tmpch = tmpbuf[i*2];
			tmpbuf[i*2] = tmpbuf[i*2+1];
			tmpbuf[i*2+1] = tmpch;
		}
	}
	shortbuf = (short *)tmpbuf;
	for (i=0; i<tmpbuflen/2; i++) {
		shortbuf[i] = shortbuf[i] * session->volume;
	}
	ao_play(session->device, tmpbuf, tmpbuflen);
	return tmpbuflen;
}

static void
audio_process(void *cls, void *opaque, const void *buffer, int buflen)
{
	shairplay_session_t *session = opaque;
	int processed;

	if (session->buffering) {
		printf("Buffering...\n");
		if (session->buflen+buflen < sizeof(session->buffer)) {
			memcpy(session->buffer+session->buflen, buffer, buflen);
			session->buflen += buflen;
			return;
		}
		session->buffering = 0;
		printf("Finished buffering...\n");

		processed = 0;
		while (processed < session->buflen) {
			processed += audio_output(session,
			                          session->buffer+processed,
			                          session->buflen-processed);
		}
		session->buflen = 0;
	}

	processed = 0;
	while (processed < buflen) {
		processed += audio_output(session,
		                          buffer+processed,
		                          buflen-processed);
	}
}

static void
audio_destroy(void *cls, void *opaque)
{
	shairplay_session_t *session = opaque;

	ao_close(session->device);
	free(session);
}

static void
audio_set_volume(void *cls, void *opaque, float volume)
{
	shairplay_session_t *session = opaque;
	session->volume = pow(10.0, 0.05*volume);
}

static int
parse_options(shairplay_options_t *opt, int argc, char *argv[])
{
	const char default_hwaddr[] = { 0x48, 0x5d, 0x60, 0x7c, 0xee, 0x22 };

	char *path = argv[0];
	char *arg;

	/* Set default values for apname and port */
	strncpy(opt->apname, "Shairplay", sizeof(opt->apname)-1);
	opt->port = 5000;
	memcpy(opt->hwaddr, default_hwaddr, sizeof(opt->hwaddr));

	while ((arg = *++argv)) {
		if (!strcmp(arg, "-a")) {
			strncpy(opt->apname, *++argv, sizeof(opt->apname)-1);
		} else if (!strncmp(arg, "--apname=", 9)) {
			strncpy(opt->apname, arg+9, sizeof(opt->apname)-1);
		} else if (!strcmp(arg, "-p")) {
			strncpy(opt->password, *++argv, sizeof(opt->password)-1);
		} else if (!strncmp(arg, "--password=", 11)) {
			strncpy(opt->password, arg+11, sizeof(opt->password)-1);
		} else if (!strcmp(arg, "-o")) {
			opt->port = atoi(*++argv);
		} else if (!strncmp(arg, "--server_port=", 14)) {
			opt->port = atoi(arg+14);
		} else if (!strncmp(arg, "--hwaddr=", 9)) {
			if (parse_hwaddr(arg+9, opt->hwaddr, sizeof(opt->hwaddr))) {
				fprintf(stderr, "Invalid format given for hwaddr, aborting...\n");
				fprintf(stderr, "Please use hwaddr format: 01:45:89:ab:cd:ef\n");
				return 1;
			}
		} else if (!strncmp(arg, "--ao_driver=", 12)) {
			strncpy(opt->ao_driver, arg+12, sizeof(opt->ao_driver)-1);
		} else if (!strncmp(arg, "--ao_devicename=", 16)) {
			strncpy(opt->ao_devicename, arg+16, sizeof(opt->ao_devicename)-1);
		} else if (!strncmp(arg, "--ao_deviceid=", 14)) {
			strncpy(opt->ao_deviceid, arg+14, sizeof(opt->ao_deviceid)-1);
		} else if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
			fprintf(stderr, "Shairplay version %s\n", VERSION);
			fprintf(stderr, "Usage: %s [OPTION...]\n", path);
			fprintf(stderr, "\n");
			fprintf(stderr, "  -a, --apname=AirPort            Sets Airport name\n");
			fprintf(stderr, "  -p, --password=secret           Sets password\n");
			fprintf(stderr, "  -o, --server_port=5000          Sets port for RAOP service\n");
			fprintf(stderr, "      --hwaddr=address            Sets the MAC address, useful if running multiple instances\n");
			fprintf(stderr, "      --ao_driver=driver          Sets the ao driver (optional)\n");
			fprintf(stderr, "      --ao_devicename=devicename  Sets the ao device name (optional)\n");
			fprintf(stderr, "      --ao_deviceid=id            Sets the ao device id (optional)\n");
			fprintf(stderr, "  -h, --help                      This help\n");
			fprintf(stderr, "\n");
			return 1;
		}
	}

	return 0;
}

int
main(int argc, char *argv[])
{
	shairplay_options_t options;
	ao_device *device = NULL;

	dnssd_t *dnssd;
	raop_t *raop;
	raop_callbacks_t raop_cbs;
	char *password = NULL;

	int error;

#ifndef WIN32
	init_signals();
#endif

	memset(&options, 0, sizeof(options));
	if (parse_options(&options, argc, argv)) {
		return 0;
	}

	ao_initialize();

	device = audio_open_device(&options, 16, 2, 44100);
	if (device == NULL) {
		fprintf(stderr, "Error opening audio device %d\n", errno);
		fprintf(stderr, "Please check your libao settings and try again\n");
		return -1;
	} else {
		ao_close(device);
		device = NULL;
	}

	memset(&raop_cbs, 0, sizeof(raop_cbs));
	raop_cbs.cls = &options;
	raop_cbs.audio_init = audio_init;
	raop_cbs.audio_process = audio_process;
	raop_cbs.audio_destroy = audio_destroy;
	raop_cbs.audio_set_volume = audio_set_volume;

	raop = raop_init_from_keyfile(10, &raop_cbs, "airport.key", NULL);
	if (raop == NULL) {
		fprintf(stderr, "Could not initialize the RAOP service\n");
		return -1;
	}

	if (strlen(options.password)) {
		password = options.password;
	}
	raop_set_log_level(raop, RAOP_LOG_DEBUG);
	raop_start(raop, &options.port, options.hwaddr, sizeof(options.hwaddr), password);

	error = 0;
	dnssd = dnssd_init(&error);
	if (error) {
		fprintf(stderr, "ERROR: Could not initialize dnssd library!\n");
		fprintf(stderr, "------------------------------------------\n");
		fprintf(stderr, "You could try the following resolutions based on your OS:\n");
		fprintf(stderr, "Windows: Try installing http://support.apple.com/kb/DL999\n");
		fprintf(stderr, "Debian/Ubuntu: Try installing libavahi-compat-libdnssd-dev package\n");
		raop_destroy(raop);
		return -1;
	}

	dnssd_register_raop(dnssd, options.apname, options.port, options.hwaddr, sizeof(options.hwaddr), 0);

	running = 1;
	while (running) {
#ifndef WIN32
		sleep(1);
#else
		Sleep(1000);
#endif
	}

	dnssd_unregister_raop(dnssd);
	dnssd_destroy(dnssd);

	raop_stop(raop);
	raop_destroy(raop);

	ao_shutdown();

	return 0;
}
Commit	Line	Data
668e175b JVH	1	/**
	2	* Copyright (C) 2012-2013 Juho Vähä-Herttua
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining
	5	* a copy of this software and associated documentation files (the
	6	* "Software"), to deal in the Software without restriction, including
	7	* without limitation the rights to use, copy, modify, merge, publish,
	8	* distribute, sublicense, and/or sell copies of the Software, and to
	9	* permit persons to whom the Software is furnished to do so, subject to
	10	* the following conditions:
	11	*
	12	* The above copyright notice and this permission notice shall be included
	13	* in all copies or substantial portions of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	17	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	18	* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	19	* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	20	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	21	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	22	*/
	23
ad58f7a2 JVH	24	#include <stdlib.h>
	25	#include <stdio.h>
	26	#include <math.h>
	27	#include <string.h>
	28	#include <unistd.h>
	29	#include <assert.h>
	30
	31	#ifdef WIN32
2c4250f1	32	# include <windows.h>
ad58f7a2 JVH	33	#endif
	34
	35	#include <shairplay/dnssd.h>
	36	#include <shairplay/raop.h>
	37
	38	#include <ao/ao.h>
	39
	40	#include "config.h"
	41
	42	typedef struct {
	43	char apname[56];
	44	char password[56];
	45	unsigned short port;
c4312a61	46	char hwaddr[6];
ad58f7a2 JVH	47
	48	char ao_driver[56];
	49	char ao_devicename[56];
	50	char ao_deviceid[16];
	51	} shairplay_options_t;
	52
	53	typedef struct {
	54	ao_device *device;
	55
	56	int buffering;
	57	int buflen;
	58	char buffer[8192];
	59
	60	float volume;
	61	} shairplay_session_t;
	62
	63
258e9fb8 JVH	64	static int running;
258e9fb8 JVH	65
2c4250f1 JVH	66	#ifndef WIN32
	67
	68	#include <signal.h>
	69	static void
	70	signal_handler(int sig)
	71	{
	72	switch (sig) {
	73	case SIGINT:
	74	case SIGTERM:
	75	running = 0;
	76	break;
	77	}
	78	}
	79	static void
	80	init_signals(void)
	81	{
	82	struct sigaction sigact;
	83
	84	sigact.sa_handler = signal_handler;
	85	sigemptyset(&sigact.sa_mask);
	86	sigact.sa_flags = 0;
	87	sigaction(SIGINT, &sigact, NULL);
	88	sigaction(SIGTERM, &sigact, NULL);
	89	}
	90
	91	#endif
	92
258e9fb8	93
c4312a61 JVH	94	static int
	95	parse_hwaddr(const char str, char hwaddr, int hwaddrlen)
	96	{
	97	int slen, i;
c4312a61 JVH	98
	99	slen = 3*hwaddrlen-1;
	100	if (strlen(str) != slen) {
	101	return 1;
	102	}
	103	for (i=0; i<slen; i++) {
	104	if (str[i] == ':' && (i%3 == 2)) {
	105	continue;
	106	}
	107	if (str[i] >= '0' && str[i] <= '9') {
	108	continue;
	109	}
	110	if (str[i] >= 'a' && str[i] <= 'f') {
	111	continue;
	112	}
	113	return 1;
	114	}
	115	for (i=0; i<hwaddrlen; i++) {
	116	hwaddr[i] = (char) strtol(str+(i*3), NULL, 16);
	117	}
	118	return 0;
	119	}
	120
ad58f7a2 JVH	121	static ao_device *
	122	audio_open_device(shairplay_options_t *opt, int bits, int channels, int samplerate)
	123	{
	124	ao_device *device = NULL;
	125	ao_option *ao_options = NULL;
	126	ao_sample_format format;
	127	int driver_id;
	128
	129	/* Get the libao driver ID */
	130	if (strlen(opt->ao_driver)) {
	131	driver_id = ao_driver_id(opt->ao_driver);
	132	} else {
	133	driver_id = ao_default_driver_id();
	134	}
	135
	136	/* Add all available libao options */
ad58f7a2 JVH	137	if (strlen(opt->ao_devicename)) {
	138	ao_append_option(&ao_options, "dev", opt->ao_devicename);
	139	}
	140	if (strlen(opt->ao_deviceid)) {
	141	ao_append_option(&ao_options, "id", opt->ao_deviceid);
	142	}
	143
	144	/* Set audio format */
	145	memset(&format, 0, sizeof(format));
	146	format.bits = bits;
	147	format.channels = channels;
	148	format.rate = samplerate;
	149	format.byte_format = AO_FMT_NATIVE;
	150
	151	/* Try opening the actual device */
	152	device = ao_open_live(driver_id, &format, ao_options);
	153	ao_free_options(ao_options);
	154	return device;
	155	}
	156
	157	static void *
	158	audio_init(void *cls, int bits, int channels, int samplerate)
	159	{
	160	shairplay_options_t *options = cls;
	161	shairplay_session_t *session;
	162
	163	session = calloc(1, sizeof(shairplay_session_t));
	164	assert(session);
	165
	166	session->device = audio_open_device(options, bits, channels, samplerate);
	167	if (session->device == NULL) {
	168	printf("Error opening device %d\n", errno);
	169	}
	170	assert(session->device);
	171
	172	session->buffering = 1;
	173	session->volume = 1.0f;
	174	return session;
	175	}
	176
	177	static int
	178	audio_output(shairplay_session_t session, const void buffer, int buflen)
	179	{
	180	short *shortbuf;
	181	char tmpbuf[4096];
	182	int tmpbuflen, i;
	183
	184	tmpbuflen = (buflen > sizeof(tmpbuf)) ? sizeof(tmpbuf) : buflen;
	185	memcpy(tmpbuf, buffer, tmpbuflen);
	186	if (ao_is_big_endian()) {
	187	for (i=0; i<tmpbuflen/2; i++) {
	188	char tmpch = tmpbuf[i*2];
	189	tmpbuf[i2] = tmpbuf[i2+1];
	190	tmpbuf[i*2+1] = tmpch;
	191	}
	192	}
	193	shortbuf = (short *)tmpbuf;
	194	for (i=0; i<tmpbuflen/2; i++) {
	195	shortbuf[i] = shortbuf[i] * session->volume;
	196	}
	197	ao_play(session->device, tmpbuf, tmpbuflen);
	198	return tmpbuflen;
	199	}
	200
201	static void
202	audio_process(void cls, void opaque, const void *buffer, int buflen)
203	{
204	shairplay_session_t *session = opaque;
205	int processed;
206
207	if (session->buffering) {
208	printf("Buffering...\n");
209	if (session->buflen+buflen < sizeof(session->buffer)) {
210	memcpy(session->buffer+session->buflen, buffer, buflen);
211	session->buflen += buflen;
212	return;
213	}
214	session->buffering = 0;
215	printf("Finished buffering...\n");
216
217	processed = 0;
218	while (processed < session->buflen) {
219	processed += audio_output(session,
220	session->buffer+processed,
221	session->buflen-processed);
222	}
223	session->buflen = 0;
224	}
225
226	processed = 0;
227	while (processed < buflen) {
228	processed += audio_output(session,
229	buffer+processed,
230	buflen-processed);
231	}
232	}
233
234	static void
235	audio_destroy(void cls, void opaque)
236	{
237	shairplay_session_t *session = opaque;
238
239	ao_close(session->device);
240	free(session);
241	}
242
243	static void
244	audio_set_volume(void cls, void opaque, float volume)
245	{
246	shairplay_session_t *session = opaque;
247	session->volume = pow(10.0, 0.05*volume);
248	}
249
250	static int
251	parse_options(shairplay_options_t opt, int argc, char argv[])
252	{
c4312a61 JVH	253	const char default_hwaddr[] = { 0x48, 0x5d, 0x60, 0x7c, 0xee, 0x22 };
c4312a61 JVH	254
ad58f7a2 JVH	255	char *path = argv[0];
	256	char *arg;
	257
093f6e00 JVH	258	/* Set default values for apname and port */
093f6e00 JVH	259	strncpy(opt->apname, "Shairplay", sizeof(opt->apname)-1);
ad58f7a2	260	opt->port = 5000;
c4312a61	261	memcpy(opt->hwaddr, default_hwaddr, sizeof(opt->hwaddr));
ad58f7a2 JVH	262
	263	while ((arg = *++argv)) {
	264	if (!strcmp(arg, "-a")) {
	265	strncpy(opt->apname, *++argv, sizeof(opt->apname)-1);
	266	} else if (!strncmp(arg, "--apname=", 9)) {
	267	strncpy(opt->apname, arg+9, sizeof(opt->apname)-1);
	268	} else if (!strcmp(arg, "-p")) {
	269	strncpy(opt->password, *++argv, sizeof(opt->password)-1);
	270	} else if (!strncmp(arg, "--password=", 11)) {
	271	strncpy(opt->password, arg+11, sizeof(opt->password)-1);
	272	} else if (!strcmp(arg, "-o")) {
	273	opt->port = atoi(*++argv);
	274	} else if (!strncmp(arg, "--server_port=", 14)) {
	275	opt->port = atoi(arg+14);
c4312a61 JVH	276	} else if (!strncmp(arg, "--hwaddr=", 9)) {
	277	if (parse_hwaddr(arg+9, opt->hwaddr, sizeof(opt->hwaddr))) {
	278	fprintf(stderr, "Invalid format given for hwaddr, aborting...\n");
	279	fprintf(stderr, "Please use hwaddr format: 01:45:89:ab:cd:ef\n");
	280	return 1;
	281	}
ad58f7a2 JVH	282	} else if (!strncmp(arg, "--ao_driver=", 12)) {
	283	strncpy(opt->ao_driver, arg+12, sizeof(opt->ao_driver)-1);
	284	} else if (!strncmp(arg, "--ao_devicename=", 16)) {
	285	strncpy(opt->ao_devicename, arg+16, sizeof(opt->ao_devicename)-1);
	286	} else if (!strncmp(arg, "--ao_deviceid=", 14)) {
	287	strncpy(opt->ao_deviceid, arg+14, sizeof(opt->ao_deviceid)-1);
	288	} else if (!strcmp(arg, "-h") \|\| !strcmp(arg, "--help")) {
	289	fprintf(stderr, "Shairplay version %s\n", VERSION);
	290	fprintf(stderr, "Usage: %s [OPTION...]\n", path);
	291	fprintf(stderr, "\n");
	292	fprintf(stderr, " -a, --apname=AirPort Sets Airport name\n");
	293	fprintf(stderr, " -p, --password=secret Sets password\n");
	294	fprintf(stderr, " -o, --server_port=5000 Sets port for RAOP service\n");
c8920724	295	fprintf(stderr, " --hwaddr=address Sets the MAC address, useful if running multiple instances\n");
ad58f7a2 JVH	296	fprintf(stderr, " --ao_driver=driver Sets the ao driver (optional)\n");
	297	fprintf(stderr, " --ao_devicename=devicename Sets the ao device name (optional)\n");
	298	fprintf(stderr, " --ao_deviceid=id Sets the ao device id (optional)\n");
	299	fprintf(stderr, " -h, --help This help\n");
	300	fprintf(stderr, "\n");
	301	return 1;
	302	}
	303	}
	304
ad58f7a2 JVH	305	return 0;
	306	}
	307
	308	int
	309	main(int argc, char *argv[])
	310	{
ad58f7a2 JVH	311	shairplay_options_t options;
	312	ao_device *device = NULL;
	313
	314	dnssd_t *dnssd;
	315	raop_t *raop;
	316	raop_callbacks_t raop_cbs;
c6e5e8b9	317	char *password = NULL;
ad58f7a2	318
61c2f5d5 JVH	319	int error;
61c2f5d5 JVH	320
2c4250f1 JVH	321	#ifndef WIN32
	322	init_signals();
	323	#endif
	324
ad58f7a2 JVH	325	memset(&options, 0, sizeof(options));
	326	if (parse_options(&options, argc, argv)) {
	327	return 0;
	328	}
	329
	330	ao_initialize();
	331
	332	device = audio_open_device(&options, 16, 2, 44100);
	333	if (device == NULL) {
	334	fprintf(stderr, "Error opening audio device %d\n", errno);
	335	fprintf(stderr, "Please check your libao settings and try again\n");
	336	return -1;
	337	} else {
	338	ao_close(device);
	339	device = NULL;
	340	}
	341
	342	memset(&raop_cbs, 0, sizeof(raop_cbs));
	343	raop_cbs.cls = &options;
	344	raop_cbs.audio_init = audio_init;
	345	raop_cbs.audio_process = audio_process;
	346	raop_cbs.audio_destroy = audio_destroy;
	347	raop_cbs.audio_set_volume = audio_set_volume;
	348
cf9b3c34	349	raop = raop_init_from_keyfile(10, &raop_cbs, "airport.key", NULL);
ad58f7a2 JVH	350	if (raop == NULL) {
	351	fprintf(stderr, "Could not initialize the RAOP service\n");
	352	return -1;
	353	}
	354
c6e5e8b9 JVH	355	if (strlen(options.password)) {
	356	password = options.password;
	357	}
ad58f7a2	358	raop_set_log_level(raop, RAOP_LOG_DEBUG);
c4312a61	359	raop_start(raop, &options.port, options.hwaddr, sizeof(options.hwaddr), password);
ad58f7a2	360
61c2f5d5 JVH	361	error = 0;
	362	dnssd = dnssd_init(&error);
	363	if (error) {
	364	fprintf(stderr, "ERROR: Could not initialize dnssd library!\n");
	365	fprintf(stderr, "------------------------------------------\n");
	366	fprintf(stderr, "You could try the following resolutions based on your OS:\n");
	367	fprintf(stderr, "Windows: Try installing http://support.apple.com/kb/DL999\n");
f95c4d2d	368	fprintf(stderr, "Debian/Ubuntu: Try installing libavahi-compat-libdnssd-dev package\n");
61c2f5d5 JVH	369	raop_destroy(raop);
	370	return -1;
	371	}
	372
c4312a61	373	dnssd_register_raop(dnssd, options.apname, options.port, options.hwaddr, sizeof(options.hwaddr), 0);
ad58f7a2	374
258e9fb8 JVH	375	running = 1;
258e9fb8 JVH	376	while (running) {
ad58f7a2	377	#ifndef WIN32
258e9fb8	378	sleep(1);
ad58f7a2	379	#else
258e9fb8	380	Sleep(1000);
ad58f7a2	381	#endif
258e9fb8	382	}
ad58f7a2 JVH	383
	384	dnssd_unregister_raop(dnssd);
	385	dnssd_destroy(dnssd);
	386
	387	raop_stop(raop);
	388	raop_destroy(raop);
	389
	390	ao_shutdown();
	391
	392	return 0;
	393	}