/* 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.h" #include <glib.h> #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; \ } int audio_output_init(struct audio_output *ao, const struct config_param *param) { 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_error("couldn't find audio output plugin for type " "\"%s\" at line %i\n", type, param->line); } } else { unsigned i; g_warning("No \"%s\" defined in config file\n", CONF_AUDIO_OUTPUT); g_warning("Attempt to detect audio output device\n"); audio_output_plugins_for_each(plugin, i) { if (plugin->test_default_device) { g_warning("Attempting to detect a %s audio " "device\n", plugin->name); if (plugin->test_default_device()) { g_warning("Successfully detected a %s " "audio device\n", plugin->name); break; } } } if (plugin == NULL) { g_warning("Unable to detect an audio device\n"); return 0; } name = "default detected output"; } ao->name = name; ao->plugin = plugin; ao->enabled = true; ao->open = false; ao->reopen_after = 0; pcm_convert_init(&ao->convState); if (format) { if (0 != parseAudioConfig(&ao->reqAudioFormat, format)) { g_error("error parsing format at line %i\n", bp->line); } } else audio_format_clear(&ao->reqAudioFormat); ao->thread = NULL; notify_init(&ao->notify); ao->command = AO_COMMAND_NONE; ao->data = plugin->init(ao, format ? &ao->reqAudioFormat : NULL, param); if (ao->data == NULL) return 0; return 1; }