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/* 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 "output_control.h"
#include "output_api.h"
#include "output_internal.h"
#include "output_list.h"
#include "audio_parser.h"
#include <glib.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "output"
#define AUDIO_OUTPUT_TYPE "type"
#define AUDIO_OUTPUT_NAME "name"
#define AUDIO_OUTPUT_FORMAT "format"
#define getBlockParam(name, str, force) { \
bp = getBlockParam(param, name); \
if(force && bp == NULL) { \
g_error("couldn't find parameter \"%s\" in audio output " \
"definition beginning at %i\n", \
name, param->line); \
} \
if(bp) str = bp->value; \
}
static const struct audio_output_plugin *
audio_output_detect(GError **error)
{
const struct audio_output_plugin *plugin;
unsigned i;
g_warning("Attempt to detect audio output device");
audio_output_plugins_for_each(plugin, i) {
if (plugin->test_default_device == NULL)
continue;
g_warning("Attempting to detect a %s audio device",
plugin->name);
if (ao_plugin_test_default_device(plugin))
return plugin;
}
g_set_error(error, audio_output_quark(), 0,
"Unable to detect an audio device");
return NULL;
}
bool
audio_output_init(struct audio_output *ao, const struct config_param *param,
GError **error)
{
const char *name = NULL;
char *format = NULL;
struct block_param *bp = NULL;
const struct audio_output_plugin *plugin = NULL;
if (param) {
const char *type = NULL;
getBlockParam(AUDIO_OUTPUT_NAME, name, 1);
getBlockParam(AUDIO_OUTPUT_TYPE, type, 1);
getBlockParam(AUDIO_OUTPUT_FORMAT, format, 0);
plugin = audio_output_plugin_get(type);
if (plugin == NULL) {
g_set_error(error, audio_output_quark(), 0,
"No such audio output plugin: %s",
type);
return false;
}
} else {
g_warning("No \"%s\" defined in config file\n",
CONF_AUDIO_OUTPUT);
plugin = audio_output_detect(error);
if (plugin == NULL)
return false;
g_message("Successfully detected a %s audio device",
plugin->name);
name = "default detected output";
}
ao->name = name;
ao->plugin = plugin;
ao->enabled = config_get_block_bool(param, "enabled", true);
ao->open = false;
ao->fail_timer = NULL;
pcm_convert_init(&ao->convert_state);
if (format) {
bool ret;
ret = audio_format_parse(&ao->config_audio_format, format,
error);
if (!ret)
return false;
} else
audio_format_clear(&ao->config_audio_format);
ao->thread = NULL;
notify_init(&ao->notify);
ao->command = AO_COMMAND_NONE;
ao->data = ao_plugin_init(plugin,
format ? &ao->config_audio_format : NULL,
param, error);
if (ao->data == NULL)
return false;
return true;
}
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