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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* 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
*/
#ifndef OUTPUT_API_H
#define OUTPUT_API_H
#include "../config.h"
#include "pcm_utils.h"
#include "audio_format.h"
#include "tag.h"
#include "conf.h"
#include "log.h"
#include "notify.h"
#include "os_compat.h"
#define DISABLED_AUDIO_OUTPUT_PLUGIN(plugin) const struct audio_output_plugin plugin;
struct audio_output;
struct audio_output_plugin {
const char *name;
int (*test_default_device)(void);
int (*init)(struct audio_output *ao,
const struct audio_format *audio_format,
ConfigParam *param);
void (*finish)(struct audio_output *ao);
int (*open)(struct audio_output *ao,
struct audio_format *audio_format);
int (*play)(struct audio_output *ao,
const char *playChunk, size_t size);
void (*cancel)(struct audio_output *ao);
void (*close)(struct audio_output *ao);
void (*send_tag)(struct audio_output *audioOutput,
const struct tag *tag);
};
enum audio_output_command {
AO_COMMAND_NONE = 0,
AO_COMMAND_OPEN,
AO_COMMAND_CLOSE,
AO_COMMAND_PLAY,
AO_COMMAND_CANCEL,
AO_COMMAND_SEND_TAG,
AO_COMMAND_KILL
};
struct audio_output {
int open;
const char *name;
const struct audio_output_plugin *plugin;
struct audio_format inAudioFormat;
struct audio_format outAudioFormat;
struct audio_format reqAudioFormat;
ConvState convState;
char *convBuffer;
size_t convBufferLen;
pthread_t thread;
struct notify notify;
enum audio_output_command command;
union {
struct {
const char *data;
size_t size;
} play;
const struct tag *tag;
} args;
int result;
void *data;
};
extern struct notify audio_output_client_notify;
const char *audio_output_get_name(const struct audio_output *ao);
void audio_output_closed(struct audio_output *ao);
#endif
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