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mpd/src/output_control.h

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output: moved code from audioOutput.c to output_control.c Similar to decoder_control.c, output_control.c will provide functions for controlling the output thread (which will be implemented later).
2008-09-09 10:02:34 +02:00
/* 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
*/
added prefix to header macros "LOG_H" is a macro which is also used by ffmpeg/log.h. This is ffmpeg's fault, because short macros should be reserved for applications, but since it's always a good idea to choose prefixed macro names, even for applications, we are going to do that in MPD.
2008-10-31 09:19:53 +01:00
#ifndef MPD_OUTPUT_CONTROL_H
#define MPD_OUTPUT_CONTROL_H
output: moved code from audioOutput.c to output_control.c Similar to decoder_control.c, output_control.c will provide functions for controlling the output thread (which will be implemented later).
2008-09-09 10:02:34 +02:00
don't include os_compat.h When there are standardized headers, use these instead of the bloated os_compat.h.
2008-10-08 10:49:29 +02:00
#include <stddef.h>
output: use bool for return values and flags Don't return 0/-1 on success/error, but true/false. Instead of int, use bool for storing flags.
2008-10-29 20:40:27 +01:00
#include <stdbool.h>
output: moved code from audioOutput.c to output_control.c Similar to decoder_control.c, output_control.c will provide functions for controlling the output thread (which will be implemented later).
2008-09-09 10:02:34 +02:00
struct audio_output;
struct audio_format;
struct tag;
output: don't include conf.h from output_control.h Minimize header dependencies.
2009-01-18 19:48:31 +01:00
struct config_param;
output: moved code from audioOutput.c to output_control.c Similar to decoder_control.c, output_control.c will provide functions for controlling the output thread (which will be implemented later).
2008-09-09 10:02:34 +02:00
output: audio_output_init() returns bool Return true/false instead of 1/0.
2009-02-25 19:53:56 +01:00
bool
output_control: no CamelCase Renamed variables.
2009-02-16 00:43:06 +01:00
audio_output_init(struct audio_output *ao, const struct config_param *param);
output: use bool for return values and flags Don't return 0/-1 on success/error, but true/false. Instead of int, use bool for storing flags.
2008-10-29 20:40:27 +01:00
bool
output_control: no CamelCase Renamed variables.
2009-02-16 00:43:06 +01:00
audio_output_open(struct audio_output *ao,
const struct audio_format *audio_format);
audio_output: workaround for deadlock During debugging, I found a deadlock between flushAudioBuffer() and the audio_output_task(): audio_output_task() didn't notice that there is a command, and flushAudioBuffer() waited forever in notify_wait(). I am not sure yet what is the real cause; work around this for now by waking up non-finished audio outputs in every iteration.
2008-09-26 07:12:29 +02:00
output: moved code to audio_output_update() Moved code from syncAudioDeviceStates() to audio_output_update().
2008-10-29 22:17:44 +01:00
/**
* Opens or closes the device, depending on the "enabled" flag.
*/
void
audio_output_update(struct audio_output *ao,
const struct audio_format *audio_format);
audio_output: workaround for deadlock During debugging, I found a deadlock between flushAudioBuffer() and the audio_output_task(): audio_output_task() didn't notice that there is a command, and flushAudioBuffer() waited forever in notify_wait(). I am not sure yet what is the real cause; work around this for now by waking up non-finished audio outputs in every iteration.
2008-09-26 07:12:29 +02:00
/**
* Wakes up the audio output thread. This is part of a workaround for
* a deadlock bug, and should be removed as soon as the real cause is
* fixed. XXX
*/
void
audio_output_signal(struct audio_output *ao);
output_control: no CamelCase Renamed variables.
2009-02-16 00:43:06 +01:00
void
output: pass the music chunk pointer as void*, not char* The meaning of the chunk depends on the audio format; don't suggest a specific format by declaring the pointer as "char*", pass "void*" instead.
2009-02-23 09:34:26 +01:00
audio_output_play(struct audio_output *ao, const void *chunk, size_t size);
audio_output: added method pause() pause() puts the audio output into pause mode: if supported, it may perform a special action, which keeps the device open, but does not play anything. Output plugins like "shout" might want to play silence during pause, so their clients won't be disconnected. Plugins which do not support pausing will simply be closed, and have to be reopened when unpaused. This pach includes an implementation for the shout plugin, which sends silence chunks.
2008-09-29 16:43:55 +02:00
output_control: no CamelCase Renamed variables.
2009-02-16 00:43:06 +01:00
void audio_output_pause(struct audio_output *ao);
audio_output: added method pause() pause() puts the audio output into pause mode: if supported, it may perform a special action, which keeps the device open, but does not play anything. Output plugins like "shout" might want to play silence during pause, so their clients won't be disconnected. Plugins which do not support pausing will simply be closed, and have to be reopened when unpaused. This pach includes an implementation for the shout plugin, which sends silence chunks.
2008-09-29 16:43:55 +02:00
output_control: no CamelCase Renamed variables.
2009-02-16 00:43:06 +01:00
void audio_output_cancel(struct audio_output *ao);
void audio_output_close(struct audio_output *ao);
void audio_output_finish(struct audio_output *ao);
void
audio_output_send_tag(struct audio_output *ao, const struct tag *tag);
output: moved code from audioOutput.c to output_control.c Similar to decoder_control.c, output_control.c will provide functions for controlling the output thread (which will be implemented later).
2008-09-09 10:02:34 +02:00
#endif
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