mpd/src/output/roar_output_plugin.c

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/*
* 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 "roar_output_plugin.h"
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#include "output_api.h"
#include "mixer_list.h"
#include "roar_output_plugin.h"
#include <glib.h>
#include <stdint.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <roaraudio.h>
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#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "roaraudio"
typedef struct roar
{
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;
GMutex *lock;
volatile bool alive;
} roar_t;
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static inline GQuark
roar_output_quark(void)
{
return g_quark_from_static_string("roar_output");
}
static int
roar_output_get_volume_locked(struct roar *roar)
{
if (roar->vss == NULL || !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(struct roar *roar)
{
g_mutex_lock(roar->lock);
int volume = roar_output_get_volume_locked(roar);
g_mutex_unlock(roar->lock);
return volume;
}
static bool
roar_output_set_volume_locked(struct roar *roar, unsigned volume)
{
assert(volume <= 100);
if (roar->vss == NULL || !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(struct roar *roar, unsigned volume)
{
g_mutex_lock(roar->lock);
bool success = roar_output_set_volume_locked(roar, volume);
g_mutex_unlock(roar->lock);
return success;
}
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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");
const char *role = config_get_block_string(param, "role", "music");
self->role = role != NULL
? roar_str2role(role)
: ROAR_ROLE_MUSIC;
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}
static struct audio_output *
roar_init(const struct config_param *param, GError **error_r)
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{
struct roar *self = g_new0(struct roar, 1);
if (!ao_base_init(&self->base, &roar_output_plugin, param, error_r)) {
g_free(self);
return NULL;
}
self->lock = g_mutex_new();
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self->err = ROAR_ERROR_NONE;
roar_configure(self, param);
return &self->base;
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}
static void
roar_finish(struct audio_output *ao)
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{
struct roar *self = (struct roar *)ao;
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g_free(self->host);
g_free(self->name);
g_mutex_free(self->lock);
ao_base_finish(&self->base);
g_free(self);
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}
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;
}
}
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static bool
roar_open(struct audio_output *ao, struct audio_format *audio_format, GError **error)
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{
struct roar *self = (struct roar *)ao;
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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;
}
roar_use_audio_format(&self->info, audio_format);
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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;
}
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static void
roar_close(struct audio_output *ao)
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{
struct roar *self = (struct roar *)ao;
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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_cancel_locked(struct roar *self)
{
if (self->vss == NULL)
return;
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 == NULL)
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;
}
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static void
roar_cancel(struct audio_output *ao)
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{
struct roar *self = (struct roar *)ao;
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g_mutex_lock(self->lock);
roar_cancel_locked(self);
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g_mutex_unlock(self->lock);
}
static size_t
roar_play(struct audio_output *ao, const void *chunk, size_t size, GError **error)
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{
struct roar *self = (struct roar *)ao;
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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(struct audio_output *ao, const struct tag *meta)
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{
struct roar *self = (struct roar *)ao;
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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
};