MPD 0.17~git
src/output_internal.h
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00001 /*
00002  * Copyright (C) 2003-2011 The Music Player Daemon Project
00003  * http://www.musicpd.org
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License along
00016  * with this program; if not, write to the Free Software Foundation, Inc.,
00017  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00018  */
00019 
00020 #ifndef MPD_OUTPUT_INTERNAL_H
00021 #define MPD_OUTPUT_INTERNAL_H
00022 
00023 #include "audio_format.h"
00024 #include "pcm_buffer.h"
00025 
00026 #include <glib.h>
00027 
00028 #include <time.h>
00029 
00030 struct config_param;
00031 
00032 enum audio_output_command {
00033         AO_COMMAND_NONE = 0,
00034         AO_COMMAND_ENABLE,
00035         AO_COMMAND_DISABLE,
00036         AO_COMMAND_OPEN,
00037 
00042         AO_COMMAND_REOPEN,
00043 
00044         AO_COMMAND_CLOSE,
00045         AO_COMMAND_PAUSE,
00046 
00051         AO_COMMAND_DRAIN,
00052 
00053         AO_COMMAND_CANCEL,
00054         AO_COMMAND_KILL
00055 };
00056 
00057 struct audio_output {
00061         const char *name;
00062 
00066         const struct audio_output_plugin *plugin;
00067 
00073         struct mixer *mixer;
00074 
00079         bool always_on;
00080 
00084         bool enabled;
00085 
00090         bool really_enabled;
00091 
00100         bool open;
00101 
00106         bool pause;
00107 
00115         bool allow_play;
00116 
00122         GTimer *fail_timer;
00123 
00127         struct audio_format config_audio_format;
00128 
00133         struct audio_format in_audio_format;
00134 
00141         struct audio_format out_audio_format;
00142 
00146         struct pcm_buffer cross_fade_buffer;
00147 
00152         struct filter *filter;
00153 
00158         struct filter *replay_gain_filter;
00159 
00164         unsigned replay_gain_serial;
00165 
00171         struct filter *other_replay_gain_filter;
00172 
00177         unsigned other_replay_gain_serial;
00178 
00185         struct filter *convert_filter;
00186 
00191         GThread *thread;
00192 
00196         enum audio_output_command command;
00197 
00201         const struct music_pipe *pipe;
00202 
00207         GMutex *mutex;
00208 
00213         GCond *cond;
00214 
00219         struct player_control *player_control;
00220 
00227         const struct music_chunk *chunk;
00228 
00232         bool chunk_finished;
00233 };
00234 
00239 extern struct notify audio_output_client_notify;
00240 
00241 static inline bool
00242 audio_output_is_open(const struct audio_output *ao)
00243 {
00244         return ao->open;
00245 }
00246 
00247 static inline bool
00248 audio_output_command_is_finished(const struct audio_output *ao)
00249 {
00250         return ao->command == AO_COMMAND_NONE;
00251 }
00252 
00253 struct audio_output *
00254 audio_output_new(const struct config_param *param,
00255                  struct player_control *pc,
00256                  GError **error_r);
00257 
00258 bool
00259 ao_base_init(struct audio_output *ao,
00260              const struct audio_output_plugin *plugin,
00261              const struct config_param *param, GError **error_r);
00262 
00263 void
00264 ao_base_finish(struct audio_output *ao);
00265 
00266 void
00267 audio_output_free(struct audio_output *ao);
00268 
00269 #endif