132 lines
3.0 KiB
C
132 lines
3.0 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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* Copyright (C) 2008 Max Kellermann <max@duempel.org>
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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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#ifndef MPD_OUTPUT_INTERNAL_H
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#define MPD_OUTPUT_INTERNAL_H
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#include "output_api.h"
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#include "pcm_convert.h"
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#include "notify.h"
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#include <time.h>
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struct audio_output {
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/**
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* The device's configured display name.
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*/
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const char *name;
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/**
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* The plugin which implements this output device.
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*/
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const struct audio_output_plugin *plugin;
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/**
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* The plugin's internal data. It is passed to every plugin
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* method.
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*/
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void *data;
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/**
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* Has the user enabled this device?
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*/
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bool enabled;
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/**
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* Is the device (already) open and functional?
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*/
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bool open;
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/**
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* If not zero, the device has failed, and should not be
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* reopened automatically before this time stamp.
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*/
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time_t reopen_after;
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/**
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* The audio_format in which audio data is received from the
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* player thread (which in turn receives it from the decoder).
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*/
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struct audio_format inAudioFormat;
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/**
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* The audio_format which is really sent to the device. This
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* is basically reqAudioFormat (if configured) or
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* inAudioFormat, but may have been modified by
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* plugin->open().
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*/
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struct audio_format outAudioFormat;
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/**
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* The audio_format which was configured. Only set if
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* convertAudioFormat is true.
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*/
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struct audio_format reqAudioFormat;
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struct pcm_convert_state convState;
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/**
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* The thread handle, or NULL if the output thread isn't
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* running.
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*/
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GThread *thread;
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/**
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* Notify object for the thread.
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*/
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struct notify notify;
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/**
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* The next command to be performed by the output thread.
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*/
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enum audio_output_command command;
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/**
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* Command arguments, depending on the command.
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*/
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union {
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struct {
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const char *data;
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size_t size;
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} play;
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const struct tag *tag;
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} args;
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};
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/**
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* Notify object used by the thread's client, i.e. we will send a
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* notify signal to this object, expecting the caller to wait on it.
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*/
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extern struct notify audio_output_client_notify;
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static inline bool
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audio_output_is_open(const struct audio_output *ao)
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{
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return ao->open;
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}
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static inline bool
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audio_output_command_is_finished(const struct audio_output *ao)
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{
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return ao->command == AO_COMMAND_NONE;
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}
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#endif
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