1 files changed, 393 insertions, 0 deletions
diff --git a/src/output/RoarOutputPlugin.cxx b/src/output/RoarOutputPlugin.cxx
new file mode 100644
index 00000000..9d6c4591
--- /dev/null
+++ b/src/output/RoarOutputPlugin.cxx
@@ -0,0 +1,393 @@
+/*
+ * Copyright (C) 2003-2013 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 "RoarOutputPlugin.hxx"
+#include "output_api.h"
+#include "MixerList.hxx"
+#include "thread/Mutex.hxx"
+
+#include <glib.h>
+
+#include <roaraudio.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "roaraudio"
+
+struct RoarOutput {
+	struct audio_output base;
+
+	roar_vs_t * vss;
+	int err;
+	char *host;
+	char *name;
+	int role;
+	struct roar_connection con;
+	struct roar_audio_info info;
+	Mutex mutex;
+	volatile bool alive;
+
+	RoarOutput()
+		:err(ROAR_ERROR_NONE),
+		 host(nullptr), name(nullptr) {}
+
+	~RoarOutput() {
+		g_free(host);
+		g_free(name);
+	}
+};
+
+static inline GQuark
+roar_output_quark(void)
+{
+	return g_quark_from_static_string("roar_output");
+}
+
+static int
+roar_output_get_volume_locked(RoarOutput *roar)
+{
+	if (roar->vss == nullptr || !roar->alive)
+		return -1;
+
+	float l, r;
+	int error;
+	if (roar_vs_volume_get(roar->vss, &l, &r, &error) < 0)
+		return -1;
+
+	return (l + r) * 50;
+}
+
+int
+roar_output_get_volume(RoarOutput *roar)
+{
+	const ScopeLock protect(roar->mutex);
+	return roar_output_get_volume_locked(roar);
+}
+
+static bool
+roar_output_set_volume_locked(RoarOutput *roar, unsigned volume)
+{
+	assert(volume <= 100);
+
+	if (roar->vss == nullptr || !roar->alive)
+		return false;
+
+	int error;
+	float level = volume / 100.0;
+
+	roar_vs_volume_mono(roar->vss, level, &error);
+	return true;
+}
+
+bool
+roar_output_set_volume(RoarOutput *roar, unsigned volume)
+{
+	const ScopeLock protect(roar->mutex);
+	return roar_output_set_volume_locked(roar, volume);
+}
+
+static void
+roar_configure(RoarOutput *self, const struct config_param *param)
+{
+	self->host = config_dup_block_string(param, "server", nullptr);
+	self->name = config_dup_block_string(param, "name", "MPD");
+
+	const char *role = config_get_block_string(param, "role", "music");
+	self->role = role != nullptr
+		? roar_str2role(role)
+		: ROAR_ROLE_MUSIC;
+}
+
+static struct audio_output *
+roar_init(const struct config_param *param, GError **error_r)
+{
+	RoarOutput *self = new RoarOutput();
+
+	if (!ao_base_init(&self->base, &roar_output_plugin, param, error_r)) {
+		delete self;
+		return nullptr;
+	}
+
+	roar_configure(self, param);
+	return &self->base;
+}
+
+static void
+roar_finish(struct audio_output *ao)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+
+	ao_base_finish(&self->base);
+	delete self;
+}
+
+static void
+roar_use_audio_format(struct roar_audio_info *info,
+		      struct audio_format *audio_format)
+{
+	info->rate = audio_format->sample_rate;
+	info->channels = audio_format->channels;
+	info->codec = ROAR_CODEC_PCM_S;
+
+	switch (audio_format->format) {
+	case SAMPLE_FORMAT_UNDEFINED:
+		info->bits = 16;
+		audio_format->format = SAMPLE_FORMAT_S16;
+		break;
+
+	case SAMPLE_FORMAT_S8:
+		info->bits = 8;
+		break;
+
+	case SAMPLE_FORMAT_S16:
+		info->bits = 16;
+		break;
+
+	case SAMPLE_FORMAT_S24_P32:
+		info->bits = 32;
+		audio_format->format = SAMPLE_FORMAT_S32;
+		break;
+
+	case SAMPLE_FORMAT_S32:
+		info->bits = 32;
+		break;
+	}
+}
+
+static bool
+roar_open(struct audio_output *ao, struct audio_format *audio_format, GError **error)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+	const ScopeLock protect(self->mutex);
+
+	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");
+		return false;
+	}
+
+	self->vss = roar_vs_new_from_con(&(self->con), &(self->err));
+
+	if (self->vss == nullptr || self->err != ROAR_ERROR_NONE)
+	{
+		g_set_error(error, roar_output_quark(), 0,
+				"Failed to connect to server");
+		return false;
+	}
+
+	roar_use_audio_format(&self->info, audio_format);
+
+	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");
+		return false;
+	}
+	roar_vs_role(self->vss, self->role, &(self->err));
+	self->alive = true;
+
+	return true;
+}
+
+static void
+roar_close(struct audio_output *ao)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+	const ScopeLock protect(self->mutex);
+
+	self->alive = false;
+
+	if (self->vss != nullptr)
+		roar_vs_close(self->vss, ROAR_VS_TRUE, &(self->err));
+	self->vss = nullptr;
+	roar_disconnect(&(self->con));
+}
+
+static void
+roar_cancel_locked(RoarOutput *self)
+{
+	if (self->vss == nullptr)
+		return;
+
+	roar_vs_t *vss = self->vss;
+	self->vss = nullptr;
+	roar_vs_close(vss, ROAR_VS_TRUE, &(self->err));
+	self->alive = false;
+
+	vss = roar_vs_new_from_con(&(self->con), &(self->err));
+	if (vss == nullptr)
+		return;
+
+	if (roar_vs_stream(vss, &(self->info), ROAR_DIR_PLAY,
+			   &(self->err)) < 0) {
+		roar_vs_close(vss, ROAR_VS_TRUE, &(self->err));
+		g_warning("Failed to start stream");
+		return;
+	}
+
+	roar_vs_role(vss, self->role, &(self->err));
+	self->vss = vss;
+	self->alive = true;
+}
+
+static void
+roar_cancel(struct audio_output *ao)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+
+	const ScopeLock protect(self->mutex);
+	roar_cancel_locked(self);
+}
+
+static size_t
+roar_play(struct audio_output *ao, const void *chunk, size_t size, GError **error)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+	ssize_t rc;
+
+	if (self->vss == nullptr)
+	{
+		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 nullptr;
+	}
+}
+
+static void
+roar_send_tag(struct audio_output *ao, const struct tag *meta)
+{
+	RoarOutput *self = (RoarOutput *)ao;
+
+	if (self->vss == nullptr)
+		return;
+
+	const ScopeLock protect(self->mutex);
+
+	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 != nullptr)
+		{
+			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);
+}
+
+const struct audio_output_plugin roar_output_plugin = {
+	"roar",
+	nullptr,
+	roar_init,
+	roar_finish,
+	nullptr,
+	nullptr,
+	roar_open,
+	roar_close,
+	nullptr,
+	roar_send_tag,
+	roar_play,
+	nullptr,
+	roar_cancel,
+	nullptr,
+	&roar_mixer_plugin,
+};