renamed src/audioOutputs/ to src/output/

Again, no CamelCase in the directory name.

1 files changed, 596 insertions, 0 deletions

diff --git a/src/output/shout_plugin.c b/src/output/shout_plugin.c
new file mode 100644
index 000000000..dd909bdae
--- /dev/null
+++ b/src/output/shout_plugin.c
@@ -0,0 +1,596 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: http://www.musicpd.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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "shout_plugin.h"
+
+#ifdef HAVE_SHOUT
+
+#include "../utils.h"
+
+#include <assert.h>
+
+#define CONN_ATTEMPT_INTERVAL 60
+#define DEFAULT_CONN_TIMEOUT  2
+
+static int shout_init_count;
+
+static const struct shout_encoder_plugin *const shout_encoder_plugins[] = {
+#ifdef HAVE_SHOUT_MP3
+	&shout_mp3_encoder,
+#endif
+#ifdef HAVE_SHOUT_OGG
+	&shout_ogg_encoder,
+#endif
+	NULL
+};
+
+static const struct shout_encoder_plugin *
+shout_encoder_plugin_get(const char *name)
+{
+	unsigned i;
+
+	for (i = 0; shout_encoder_plugins[i] != NULL; ++i)
+		if (strcmp(shout_encoder_plugins[i]->name, name) == 0)
+			return shout_encoder_plugins[i];
+
+	return NULL;
+}
+
+static struct shout_data *new_shout_data(void)
+{
+	struct shout_data *ret = xmalloc(sizeof(*ret));
+
+	ret->shout_conn = shout_new();
+	ret->shout_meta = shout_metadata_new();
+	ret->opened = 0;
+	ret->tag = NULL;
+	ret->tag_to_send = 0;
+	ret->bitrate = -1;
+	ret->quality = -2.0;
+	ret->timeout = DEFAULT_CONN_TIMEOUT;
+	ret->conn_attempts = 0;
+	ret->last_attempt = 0;
+	ret->timer = NULL;
+	ret->buf.len = 0;
+
+	return ret;
+}
+
+static void free_shout_data(struct shout_data *sd)
+{
+	if (sd->shout_meta)
+		shout_metadata_free(sd->shout_meta);
+	if (sd->shout_conn)
+		shout_free(sd->shout_conn);
+	if (sd->tag)
+		tag_free(sd->tag);
+	if (sd->timer)
+		timer_free(sd->timer);
+
+	free(sd);
+}
+
+#define check_block_param(name) {		  \
+		block_param = getBlockParam(param, name);	\
+		if (!block_param) {					\
+			FATAL("no \"%s\" defined for shout device defined at line " \
+			      "%i\n", name, param->line);		\
+		}							\
+	}
+
+static void *my_shout_init_driver(struct audio_output *audio_output,
+				  const struct audio_format *audio_format,
+				  ConfigParam *param)
+{
+	struct shout_data *sd;
+	char *test;
+	int port;
+	char *host;
+	char *mount;
+	char *passwd;
+	const char *encoding;
+	unsigned protocol;
+	const char *user;
+	char *name;
+	BlockParam *block_param;
+	int public;
+
+	sd = new_shout_data();
+	sd->audio_output = audio_output;
+
+	if (shout_init_count == 0)
+		shout_init();
+
+	shout_init_count++;
+
+	check_block_param("host");
+	host = block_param->value;
+
+	check_block_param("mount");
+	mount = block_param->value;
+
+	check_block_param("port");
+
+	port = strtol(block_param->value, &test, 10);
+
+	if (*test != '\0' || port <= 0) {
+		FATAL("shout port \"%s\" is not a positive integer, line %i\n",
+		      block_param->value, block_param->line);
+	}
+
+	check_block_param("password");
+	passwd = block_param->value;
+
+	check_block_param("name");
+	name = block_param->value;
+
+	public = getBoolBlockParam(param, "public", 1);
+	if (public == CONF_BOOL_UNSET)
+		public = 0;
+
+	block_param = getBlockParam(param, "user");
+	if (block_param)
+		user = block_param->value;
+	else
+		user = "source";
+
+	block_param = getBlockParam(param, "quality");
+
+	if (block_param) {
+		int line = block_param->line;
+
+		sd->quality = strtod(block_param->value, &test);
+
+		if (*test != '\0' || sd->quality < -1.0 || sd->quality > 10.0) {
+			FATAL("shout quality \"%s\" is not a number in the "
+			      "range -1 to 10, line %i\n", block_param->value,
+			      block_param->line);
+		}
+
+		block_param = getBlockParam(param, "bitrate");
+
+		if (block_param) {
+			FATAL("quality (line %i) and bitrate (line %i) are "
+			      "both defined for shout output\n", line,
+			      block_param->line);
+		}
+	} else {
+		block_param = getBlockParam(param, "bitrate");
+
+		if (!block_param) {
+			FATAL("neither bitrate nor quality defined for shout "
+			      "output at line %i\n", param->line);
+		}
+
+		sd->bitrate = strtol(block_param->value, &test, 10);
+
+		if (*test != '\0' || sd->bitrate <= 0) {
+			FATAL("bitrate at line %i should be a positive integer "
+			      "\n", block_param->line);
+		}
+	}
+
+	check_block_param("format");
+
+	assert(audio_format != NULL);
+	sd->audio_format = *audio_format;
+
+	block_param = getBlockParam(param, "encoding");
+	if (block_param) {
+		if (0 == strcmp(block_param->value, "mp3"))
+			encoding = block_param->value;
+		else if (0 == strcmp(block_param->value, "ogg"))
+			encoding = block_param->value;
+		else
+			FATAL("shout encoding \"%s\" is not \"ogg\" or "
+			      "\"mp3\", line %i\n", block_param->value,
+			      block_param->line);
+	} else {
+		encoding = "ogg";
+	}
+
+	sd->encoder = shout_encoder_plugin_get(encoding);
+	if (sd->encoder == NULL)
+		FATAL("couldn't find shout encoder plugin for \"%s\" "
+		      "at line %i\n", encoding, block_param->line);
+
+	check_block_param("protocol");
+
+	block_param = getBlockParam(param, "protocol");
+	if (block_param) {
+		if (0 == strcmp(block_param->value, "shoutcast") &&
+		    0 != strcmp(encoding, "mp3"))
+			FATAL("you cannot stream \"%s\" to shoutcast, use mp3\n",
+			      encoding);
+		else if (0 == strcmp(block_param->value, "shoutcast"))
+			protocol = SHOUT_PROTOCOL_ICY;
+		else if (0 == strcmp(block_param->value, "icecast1"))
+			protocol = SHOUT_PROTOCOL_XAUDIOCAST;
+		else if (0 == strcmp(block_param->value, "icecast2"))
+			protocol = SHOUT_PROTOCOL_HTTP;
+		else
+			FATAL("shout protocol \"%s\" is not \"shoutcast\" or "
+			      "\"icecast1\"or "
+			      "\"icecast2\", line %i\n", block_param->value,
+			      block_param->line);
+	} else {
+		protocol = SHOUT_PROTOCOL_HTTP;
+	}
+
+	if (shout_set_host(sd->shout_conn, host) != SHOUTERR_SUCCESS ||
+	    shout_set_port(sd->shout_conn, port) != SHOUTERR_SUCCESS ||
+	    shout_set_password(sd->shout_conn, passwd) != SHOUTERR_SUCCESS ||
+	    shout_set_mount(sd->shout_conn, mount) != SHOUTERR_SUCCESS ||
+	    shout_set_name(sd->shout_conn, name) != SHOUTERR_SUCCESS ||
+	    shout_set_user(sd->shout_conn, user) != SHOUTERR_SUCCESS ||
+	    shout_set_public(sd->shout_conn, public) != SHOUTERR_SUCCESS ||
+	    shout_set_nonblocking(sd->shout_conn, 1) != SHOUTERR_SUCCESS ||
+	    shout_set_format(sd->shout_conn, sd->encoder->shout_format)
+	    != SHOUTERR_SUCCESS ||
+	    shout_set_protocol(sd->shout_conn, protocol) != SHOUTERR_SUCCESS ||
+	    shout_set_agent(sd->shout_conn, "MPD") != SHOUTERR_SUCCESS) {
+		FATAL("error configuring shout defined at line %i: %s\n",
+		      param->line, shout_get_error(sd->shout_conn));
+	}
+
+	/* optional paramters */
+	block_param = getBlockParam(param, "timeout");
+	if (block_param) {
+		sd->timeout = (int)strtol(block_param->value, &test, 10);
+		if (*test != '\0' || sd->timeout <= 0) {
+			FATAL("shout timeout is not a positive integer, "
+			      "line %i\n", block_param->line);
+		}
+	}
+
+	block_param = getBlockParam(param, "genre");
+	if (block_param && shout_set_genre(sd->shout_conn, block_param->value)) {
+		FATAL("error configuring shout defined at line %i: %s\n",
+		      param->line, shout_get_error(sd->shout_conn));
+	}
+
+	block_param = getBlockParam(param, "description");
+	if (block_param && shout_set_description(sd->shout_conn,
+						 block_param->value)) {
+		FATAL("error configuring shout defined at line %i: %s\n",
+		      param->line, shout_get_error(sd->shout_conn));
+	}
+
+	{
+		char temp[11];
+		memset(temp, 0, sizeof(temp));
+
+		snprintf(temp, sizeof(temp), "%u", sd->audio_format.channels);
+		shout_set_audio_info(sd->shout_conn, SHOUT_AI_CHANNELS, temp);
+
+		snprintf(temp, sizeof(temp), "%u", sd->audio_format.sample_rate);
+
+		shout_set_audio_info(sd->shout_conn, SHOUT_AI_SAMPLERATE, temp);
+
+		if (sd->quality >= -1.0) {
+			snprintf(temp, sizeof(temp), "%2.2f", sd->quality);
+			shout_set_audio_info(sd->shout_conn, SHOUT_AI_QUALITY,
+					     temp);
+		} else {
+			snprintf(temp, sizeof(temp), "%d", sd->bitrate);
+			shout_set_audio_info(sd->shout_conn, SHOUT_AI_BITRATE,
+					     temp);
+		}
+	}
+
+	if (sd->encoder->init_func(sd) != 0)
+		FATAL("shout: encoder plugin '%s' failed to initialize\n",
+		      sd->encoder->name);
+
+	return sd;
+}
+
+static int handle_shout_error(struct shout_data *sd, int err)
+{
+	switch (err) {
+	case SHOUTERR_SUCCESS:
+		break;
+	case SHOUTERR_UNCONNECTED:
+	case SHOUTERR_SOCKET:
+		ERROR("Lost shout connection to %s:%i: %s\n",
+		      shout_get_host(sd->shout_conn),
+		      shout_get_port(sd->shout_conn),
+		      shout_get_error(sd->shout_conn));
+		sd->shout_error = 1;
+		return -1;
+	default:
+		ERROR("shout: connection to %s:%i error: %s\n",
+		      shout_get_host(sd->shout_conn),
+		      shout_get_port(sd->shout_conn),
+		      shout_get_error(sd->shout_conn));
+		sd->shout_error = 1;
+		return -1;
+	}
+
+	return 0;
+}
+
+static int write_page(struct shout_data *sd)
+{
+	int err;
+
+	if (sd->buf.len == 0)
+		return 0;
+
+	shout_sync(sd->shout_conn);
+	err = shout_send(sd->shout_conn, sd->buf.data, sd->buf.len);
+	if (handle_shout_error(sd, err) < 0)
+		return -1;
+	sd->buf.len = 0;
+
+	return 0;
+}
+
+static void close_shout_conn(struct shout_data * sd)
+{
+	if (sd->opened) {
+		if (sd->encoder->clear_encoder_func(sd))
+			write_page(sd);
+	}
+
+	if (shout_get_connected(sd->shout_conn) != SHOUTERR_UNCONNECTED &&
+	    shout_close(sd->shout_conn) != SHOUTERR_SUCCESS) {
+		ERROR("problem closing connection to shout server: %s\n",
+		      shout_get_error(sd->shout_conn));
+	}
+
+	sd->opened = 0;
+}
+
+static void my_shout_finish_driver(void *data)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+
+	close_shout_conn(sd);
+
+	sd->encoder->finish_func(sd);
+	free_shout_data(sd);
+
+	shout_init_count--;
+
+	if (shout_init_count == 0)
+		shout_shutdown();
+}
+
+static void my_shout_drop_buffered_audio(void *data)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+	timer_reset(sd->timer);
+
+	/* needs to be implemented for shout */
+}
+
+static void my_shout_close_device(void *data)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+
+	close_shout_conn(sd);
+
+	if (sd->timer) {
+		timer_free(sd->timer);
+		sd->timer = NULL;
+	}
+}
+
+static int shout_connect(struct shout_data *sd)
+{
+	time_t t = time(NULL);
+	int state = shout_get_connected(sd->shout_conn);
+
+	/* already connected */
+	if (state == SHOUTERR_CONNECTED)
+		return 0;
+
+	/* waiting to connect */
+	if (state == SHOUTERR_BUSY && sd->conn_attempts != 0) {
+		/* timeout waiting to connect */
+		if ((t - sd->last_attempt) > sd->timeout) {
+			ERROR("timeout connecting to shout server %s:%i "
+			      "(attempt %i)\n",
+			      shout_get_host(sd->shout_conn),
+			      shout_get_port(sd->shout_conn),
+			      sd->conn_attempts);
+			return -1;
+		}
+
+		return 1;
+	}
+
+	/* we're in some funky state, so just reset it to unconnected */
+	if (state != SHOUTERR_UNCONNECTED)
+		shout_close(sd->shout_conn);
+
+	/* throttle new connection attempts */
+	if (sd->conn_attempts != 0 &&
+	    (t - sd->last_attempt) <= CONN_ATTEMPT_INTERVAL) {
+		return -1;
+	}
+
+	/* initiate a new connection */
+
+	sd->conn_attempts++;
+	sd->last_attempt = t;
+
+	state = shout_open(sd->shout_conn);
+	switch (state) {
+	case SHOUTERR_SUCCESS:
+	case SHOUTERR_CONNECTED:
+		return 0;
+	case SHOUTERR_BUSY:
+		return 1;
+	default:
+		ERROR("problem opening connection to shout server %s:%i "
+		      "(attempt %i): %s\n",
+		      shout_get_host(sd->shout_conn),
+		      shout_get_port(sd->shout_conn),
+		      sd->conn_attempts, shout_get_error(sd->shout_conn));
+		return -1;
+	}
+}
+
+static int open_shout_conn(void *data)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+	int status;
+
+	status = shout_connect(sd);
+	if (status != 0)
+		return status;
+
+	if (sd->encoder->init_encoder_func(sd) < 0) {
+		shout_close(sd->shout_conn);
+		return -1;
+	}
+
+	write_page(sd);
+
+	sd->shout_error = 0;
+	sd->opened = 1;
+	sd->tag_to_send = 1;
+	sd->conn_attempts = 0;
+
+	return 0;
+}
+
+static int my_shout_open_device(void *data,
+				struct audio_format *audio_format)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+
+	if (!sd->opened && open_shout_conn(sd) < 0)
+		return -1;
+
+	if (sd->timer)
+		timer_free(sd->timer);
+
+	sd->timer = timer_new(audio_format);
+
+	return 0;
+}
+
+static void send_metadata(struct shout_data * sd)
+{
+	static const int size = 1024;
+	char song[size];
+
+	if (!sd->opened || !sd->tag)
+		return;
+
+	if (sd->encoder->send_metadata_func(sd, song, size)) {
+		shout_metadata_add(sd->shout_meta, "song", song);
+		if (SHOUTERR_SUCCESS != shout_set_metadata(sd->shout_conn,
+							   sd->shout_meta)) {
+			ERROR("error setting shout metadata\n");
+			return;
+		}
+	}
+
+	sd->tag_to_send = 0;
+}
+
+static int my_shout_play(void *data,
+			 const char *chunk, size_t size)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+	int status;
+
+	if (!sd->timer->started)
+		timer_start(sd->timer);
+
+	timer_add(sd->timer, size);
+
+	if (sd->opened && sd->tag_to_send)
+		send_metadata(sd);
+
+	if (!sd->opened) {
+		status = open_shout_conn(sd);
+		if (status < 0) {
+			my_shout_close_device(sd);
+			return -1;
+		} else if (status > 0) {
+			timer_sync(sd->timer);
+			return 0;
+		}
+	}
+
+	if (sd->encoder->encode_func(sd, chunk, size)) {
+		my_shout_close_device(sd);
+		return -1;
+	}
+
+	if (write_page(sd) < 0) {
+		my_shout_close_device(sd);
+		return -1;
+	}
+
+	return 0;
+}
+
+static void my_shout_pause(void *data)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+	static const char silence[1020];
+	int ret;
+
+	/* play silence until the player thread sends us a command */
+
+	while (sd->opened && !audio_output_is_pending(sd->audio_output)) {
+		ret = my_shout_play(data, silence, sizeof(silence));
+		if (ret != 0)
+			break;
+	}
+}
+
+static void my_shout_set_tag(void *data,
+			     const struct tag *tag)
+{
+	struct shout_data *sd = (struct shout_data *)data;
+
+	if (sd->tag)
+		tag_free(sd->tag);
+	sd->tag = NULL;
+	sd->tag_to_send = 0;
+
+	if (!tag)
+		return;
+
+	sd->tag = tag_dup(tag);
+	sd->tag_to_send = 1;
+}
+
+const struct audio_output_plugin shoutPlugin = {
+	.name = "shout",
+	.init = my_shout_init_driver,
+	.finish = my_shout_finish_driver,
+	.open = my_shout_open_device,
+	.play = my_shout_play,
+	.pause = my_shout_pause,
+	.cancel = my_shout_drop_buffered_audio,
+	.close = my_shout_close_device,
+	.send_tag = my_shout_set_tag,
+};
+
+#else
+
+DISABLED_AUDIO_OUTPUT_PLUGIN(shoutPlugin)
+#endif