RoarAudio output plugin

1 files changed, 329 insertions, 0 deletions

diff --git a/src/output/roar_plugin.c b/src/output/roar_plugin.c
new file mode 100644
index 000000000..f12f795c4
--- /dev/null
+++ b/src/output/roar_plugin.c
@@ -0,0 +1,329 @@
+/*
+ * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2010-2011 Philipp 'ph3-der-loewe' Schafft
+ * Copyright (C) 2010-2011 Hans-Kristian 'maister' Arntzen
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "output_api.h"
+#include "mixer_list.h"
+#include "roar_output_plugin.h"
+
+#include <glib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "roaraudio"
+
+static inline GQuark
+roar_output_quark(void)
+{
+	return g_quark_from_static_string("roar_output");
+}
+
+static void
+roar_configure(struct roar * self, const struct config_param *param)
+{
+	self->host = config_dup_block_string(param, "server", NULL);
+	self->name = config_dup_block_string(param, "name", "MPD");
+	char *role = config_dup_block_string(param, "role", "music");
+	if (role != NULL)
+	{
+		self->role = roar_str2role(role);
+		g_free(role);
+	}
+	else
+		self->role = ROAR_ROLE_MUSIC;
+}
+
+static void *
+roar_init(G_GNUC_UNUSED const struct audio_format *audio_format,
+		const struct config_param *param,
+		G_GNUC_UNUSED GError **error)
+{
+	GMutex *lock = g_mutex_new();
+
+	roar_t * self = roar_mm_calloc(1, sizeof(*self));
+	if (self == NULL)
+	{
+		g_set_error(error, roar_output_quark(), 0, "Failed to allocate memory");
+		return NULL;
+	}
+
+	self->lock = lock;
+	self->err = ROAR_ERROR_NONE;
+	roar_configure(self, param);
+	return self;
+}
+
+static void
+roar_close(void *data)
+{
+	roar_t * self = data;
+	g_mutex_lock(self->lock);
+	self->alive = false;
+
+	if (self->vss != NULL)
+		roar_vs_close(self->vss, ROAR_VS_TRUE, &(self->err));
+	self->vss = NULL;
+	roar_disconnect(&(self->con));
+	g_mutex_unlock(self->lock);
+}
+
+static void
+roar_finish(void *data)
+{
+	roar_t * self = data;
+
+	g_free(self->host);
+	g_free(self->name);
+	g_mutex_free(self->lock);
+
+	roar_mm_free(data);
+}
+
+static bool
+roar_open(void *data, struct audio_format *audio_format, GError **error)
+{
+	roar_t * self = data;
+	g_mutex_lock(self->lock);
+
+	if (roar_simple_connect(&(self->con), self->host, self->name) < 0)
+	{
+		g_set_error(error, roar_output_quark(), 0,
+				"Failed to connect to Roar server");
+		g_mutex_unlock(self->lock);
+		return false;
+	}
+
+	self->vss = roar_vs_new_from_con(&(self->con), &(self->err));
+
+	if (self->vss == NULL || self->err != ROAR_ERROR_NONE)
+	{
+		g_set_error(error, roar_output_quark(), 0,
+				"Failed to connect to server");
+		g_mutex_unlock(self->lock);
+		return false;
+	}
+
+	self->info.rate = audio_format->sample_rate;
+	self->info.channels = audio_format->channels;
+	self->info.codec = ROAR_CODEC_PCM_S;
+
+	switch (audio_format->format)
+	{
+		case SAMPLE_FORMAT_S8:
+			self->info.bits = 8;
+			break;
+		case SAMPLE_FORMAT_S16:
+			self->info.bits = 16;
+			break;
+		case SAMPLE_FORMAT_S24:
+			self->info.bits = 24;
+			break;
+		case SAMPLE_FORMAT_S24_P32:
+			self->info.bits = 32;
+			audio_format->format = SAMPLE_FORMAT_S32;
+			break;
+		case SAMPLE_FORMAT_S32:
+			self->info.bits = 32;
+			break;
+		default:
+			self->info.bits = 16;
+			audio_format->format = SAMPLE_FORMAT_S16;
+	}
+	audio_format->reverse_endian = 0;
+
+	if (roar_vs_stream(self->vss, &(self->info), ROAR_DIR_PLAY,
+				&(self->err)) < 0)
+	{
+		g_set_error(error, roar_output_quark(), 0, "Failed to start stream");
+		g_mutex_unlock(self->lock);
+		return false;
+	}
+	roar_vs_role(self->vss, self->role, &(self->err));
+	self->alive = true;
+
+	g_mutex_unlock(self->lock);
+	return true;
+}
+
+static void
+roar_cancel(void *data)
+{
+	roar_t * self = data;
+
+	g_mutex_lock(self->lock);
+	if (self->vss != NULL)
+	{
+		roar_vs_t *vss = self->vss;
+		self->vss = NULL;
+		roar_vs_close(vss, ROAR_VS_TRUE, &(self->err));
+		self->alive = false;
+
+		vss = roar_vs_new_from_con(&(self->con), &(self->err));
+		if (vss)
+		{
+			roar_vs_stream(vss, &(self->info), ROAR_DIR_PLAY, &(self->err));
+			roar_vs_role(vss, self->role, &(self->err));
+			self->vss = vss;
+			self->alive = true;
+		}
+	}
+	g_mutex_unlock(self->lock);
+}
+
+static size_t
+roar_play(void *data, const void *chunk, size_t size, GError **error)
+{
+	struct roar * self = data;
+	ssize_t rc;
+
+	if (self->vss == NULL)
+	{
+		g_set_error(error, roar_output_quark(), 0, "Connection is invalid");
+		return 0;
+	}
+
+	rc = roar_vs_write(self->vss, chunk, size, &(self->err));
+	if ( rc <= 0 )
+	{
+		g_set_error(error, roar_output_quark(), 0, "Failed to play data");
+		return 0;
+	}
+
+	return rc;
+}
+
+static const char*
+roar_tag_convert(enum tag_type type, bool *is_uuid)
+{
+	*is_uuid = false;
+	switch (type)
+	{
+		case TAG_ARTIST:
+		case TAG_ALBUM_ARTIST:
+			return "AUTHOR";
+		case TAG_ALBUM:
+			return "ALBUM";
+		case TAG_TITLE:
+			return "TITLE";
+		case TAG_TRACK:
+			return "TRACK";
+		case TAG_NAME:
+			return "NAME";
+		case TAG_GENRE:
+			return "GENRE";
+		case TAG_DATE:
+			return "DATE";
+		case TAG_PERFORMER:
+			return "PERFORMER";
+		case TAG_COMMENT:
+			return "COMMENT";
+		case TAG_DISC:
+			return "DISCID";
+		case TAG_COMPOSER:
+#ifdef ROAR_META_TYPE_COMPOSER
+			return "COMPOSER";
+#else
+			return "AUTHOR";
+#endif
+		case TAG_MUSICBRAINZ_ARTISTID:
+		case TAG_MUSICBRAINZ_ALBUMID:
+		case TAG_MUSICBRAINZ_ALBUMARTISTID:
+		case TAG_MUSICBRAINZ_TRACKID:
+			*is_uuid = true;
+			return "HASH";
+
+		default:
+			return NULL;
+	}
+}
+
+static void
+roar_send_tag(void *data, const struct tag *meta)
+{
+	struct roar * self = data;
+
+	if (self->vss == NULL)
+		return;
+
+	g_mutex_lock(self->lock);
+	size_t cnt = 1;
+	struct roar_keyval vals[32];
+	memset(vals, 0, sizeof(vals));
+	char uuid_buf[32][64];
+
+	char timebuf[16];
+	snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d",
+			meta->time / 3600, (meta->time % 3600) / 60, meta->time % 60);
+
+	vals[0].key = g_strdup("LENGTH");
+	vals[0].value = timebuf;
+
+	for (unsigned i = 0; i < meta->num_items && cnt < 32; i++)
+	{
+		bool is_uuid = false;
+		const char *key = roar_tag_convert(meta->items[i]->type, &is_uuid);
+		if (key != NULL)
+		{
+			if (is_uuid)
+			{
+				snprintf(uuid_buf[cnt], sizeof(uuid_buf[0]), "{UUID}%s",
+						meta->items[i]->value);
+				vals[cnt].key = g_strdup(key);
+				vals[cnt].value = uuid_buf[cnt];
+			}
+			else
+			{
+				vals[cnt].key = g_strdup(key);
+				vals[cnt].value = meta->items[i]->value;
+			}
+			cnt++;
+		}
+	}
+
+	roar_vs_meta(self->vss, vals, cnt, &(self->err));
+
+	for (unsigned i = 0; i < 32; i++)
+		g_free(vals[i].key);
+
+	g_mutex_unlock(self->lock);
+}
+
+const struct audio_output_plugin roar_output_plugin = {
+	.name = "roar",
+	.init = roar_init,
+	.finish = roar_finish,
+	.open = roar_open,
+	.play = roar_play,
+	.cancel = roar_cancel,
+	.close = roar_close,
+	.send_tag = roar_send_tag,
+
+	.mixer_plugin = &roar_mixer_plugin
+};