0275690b5c
Do all the software volume stuff inside each output thread, not in the player thread. This allows one software mixer per output device, and also allows the user to configure the mixer type (hardware or software) for each audio output. This moves the global "mixer_type" setting into the "audio_output" section, deprecating the "mixer_enabled" flag.
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* 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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_PLAYER_H
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#define MPD_PLAYER_H
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#include "notify.h"
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#include "audio_format.h"
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#include <stdint.h>
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enum player_state {
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PLAYER_STATE_STOP = 0,
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PLAYER_STATE_PAUSE,
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PLAYER_STATE_PLAY
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};
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enum player_command {
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PLAYER_COMMAND_NONE = 0,
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PLAYER_COMMAND_EXIT,
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PLAYER_COMMAND_STOP,
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PLAYER_COMMAND_PLAY,
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PLAYER_COMMAND_PAUSE,
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PLAYER_COMMAND_SEEK,
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PLAYER_COMMAND_CLOSE_AUDIO,
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/** player_control.next_song has been updated */
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PLAYER_COMMAND_QUEUE,
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/**
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* cancel pre-decoding player_control.next_song; if the player
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* has already started playing this song, it will completely
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* stop
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*/
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PLAYER_COMMAND_CANCEL,
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};
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enum player_error {
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PLAYER_ERROR_NOERROR = 0,
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PLAYER_ERROR_FILE,
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PLAYER_ERROR_AUDIO,
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PLAYER_ERROR_SYSTEM,
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PLAYER_ERROR_UNKTYPE,
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PLAYER_ERROR_FILENOTFOUND,
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};
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struct player_control {
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unsigned buffer_chunks;
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unsigned int buffered_before_play;
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/** the handle of the player thread, or NULL if the player
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thread isn't running */
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GThread *thread;
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struct notify notify;
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volatile enum player_command command;
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volatile enum player_state state;
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volatile enum player_error error;
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uint16_t bit_rate;
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struct audio_format audio_format;
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float total_time;
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float elapsed_time;
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struct song *volatile next_song;
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struct song *errored_song;
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volatile double seek_where;
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float cross_fade_seconds;
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double total_play_time;
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};
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extern struct player_control pc;
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void pc_init(unsigned buffer_chunks, unsigned buffered_before_play);
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void pc_deinit(void);
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/**
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* Call this function when the specified song pointer is about to be
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* invalidated. This makes sure that player_control.errored_song does
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* not point to an invalid pointer.
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*/
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void
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pc_song_deleted(const struct song *song);
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void
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playerPlay(struct song *song);
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/**
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* see PLAYER_COMMAND_CANCEL
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*/
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void pc_cancel(void);
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void playerSetPause(int pause_flag);
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void playerPause(void);
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void playerKill(void);
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int getPlayerTotalTime(void);
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int getPlayerElapsedTime(void);
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unsigned long getPlayerBitRate(void);
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enum player_state getPlayerState(void);
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void clearPlayerError(void);
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char *getPlayerErrorStr(void);
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enum player_error getPlayerError(void);
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void playerWait(void);
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void
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queueSong(struct song *song);
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/**
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* Makes the player thread seek the specified song to a position.
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*
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* @return true on success, false on failure (e.g. if MPD isn't
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* playing currently)
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*/
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bool
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pc_seek(struct song *song, float seek_time);
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void setPlayerCrossFade(float crossFadeInSeconds);
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float getPlayerCrossFade(void);
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double getPlayerTotalPlayTime(void);
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static inline const struct audio_format *
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player_get_audio_format(void)
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{
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return &pc.audio_format;
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}
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void playerInit(void);
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#endif
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