115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "output_control.h"
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#include "output_api.h"
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#include "output_internal.h"
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#include "output_list.h"
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#include "audio.h"
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#include <glib.h>
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#define AUDIO_OUTPUT_TYPE "type"
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#define AUDIO_OUTPUT_NAME "name"
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#define AUDIO_OUTPUT_FORMAT "format"
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#define getBlockParam(name, str, force) { \
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bp = getBlockParam(param, name); \
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if(force && bp == NULL) { \
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g_error("couldn't find parameter \"%s\" in audio output " \
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"definition beginning at %i\n", \
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name, param->line); \
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} \
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if(bp) str = bp->value; \
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}
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int audio_output_init(struct audio_output *ao, ConfigParam * param)
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{
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const char *name = NULL;
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char *format = NULL;
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BlockParam *bp = NULL;
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const struct audio_output_plugin *plugin = NULL;
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if (param) {
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const char *type = NULL;
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getBlockParam(AUDIO_OUTPUT_NAME, name, 1);
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getBlockParam(AUDIO_OUTPUT_TYPE, type, 1);
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getBlockParam(AUDIO_OUTPUT_FORMAT, format, 0);
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plugin = audio_output_plugin_get(type);
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if (plugin == NULL) {
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g_error("couldn't find audio output plugin for type "
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"\"%s\" at line %i\n", type, param->line);
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}
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} else {
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unsigned i;
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g_warning("No \"%s\" defined in config file\n",
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CONF_AUDIO_OUTPUT);
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g_warning("Attempt to detect audio output device\n");
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audio_output_plugins_for_each(plugin, i) {
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if (plugin->test_default_device) {
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g_warning("Attempting to detect a %s audio "
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"device\n", plugin->name);
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if (plugin->test_default_device()) {
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g_warning("Successfully detected a %s "
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"audio device\n", plugin->name);
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break;
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}
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}
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}
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if (plugin == NULL) {
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g_warning("Unable to detect an audio device\n");
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return 0;
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}
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name = "default detected output";
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}
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ao->name = name;
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ao->plugin = plugin;
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ao->enabled = true;
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ao->open = false;
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ao->reopen_after = 0;
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ao->convBuffer = NULL;
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ao->convBufferLen = 0;
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pcm_convert_init(&ao->convState);
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if (format) {
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if (0 != parseAudioConfig(&ao->reqAudioFormat, format)) {
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g_error("error parsing format at line %i\n", bp->line);
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}
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} else
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audio_format_clear(&ao->reqAudioFormat);
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ao->thread = 0;
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notify_init(&ao->notify);
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ao->command = AO_COMMAND_NONE;
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ao->data = plugin->init(ao, format ? &ao->reqAudioFormat : NULL, param);
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if (ao->data == NULL)
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return 0;
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return 1;
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}
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