169 lines
3.9 KiB
C
169 lines
3.9 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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* 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 PLAYER_H
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#define 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_COMMAND_LOCK_QUEUE,
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PLAYER_COMMAND_UNLOCK_QUEUE
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};
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#define PLAYER_ERROR_NOERROR 0
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#define PLAYER_ERROR_FILE 1
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#define PLAYER_ERROR_AUDIO 2
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#define PLAYER_ERROR_SYSTEM 3
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#define PLAYER_ERROR_UNKTYPE 4
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#define PLAYER_ERROR_FILENOTFOUND 5
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/* 0->1->2->3->5 regular playback
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* ->4->0 don't play queued song
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*/
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enum player_queue_state {
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/** there is no queued song */
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PLAYER_QUEUE_BLANK = 0,
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/** there is a queued song */
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PLAYER_QUEUE_FULL = 1,
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/** the player thread has forwarded the queued song to the
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decoder; it waits for PLAY or STOP */
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PLAYER_QUEUE_DECODE = 2,
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/** tells the player thread to start playing the queued song;
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this is a response to DECODE */
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PLAYER_QUEUE_PLAY = 3,
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/** tells the player thread to stop before playing the queued
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song; this is a response to DECODE */
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PLAYER_QUEUE_STOP = 4,
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/** the player thread has begun playing the queued song, and
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thus its queue is empty */
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PLAYER_QUEUE_EMPTY = 5
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};
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#define PLAYER_QUEUE_UNLOCKED 0
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#define PLAYER_QUEUE_LOCKED 1
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struct player_control {
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unsigned int buffered_before_play;
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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 int8_t error;
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volatile uint16_t bitRate;
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struct audio_format audio_format;
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volatile float totalTime;
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volatile float elapsedTime;
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volatile float fileTime;
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struct song *volatile next_song;
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struct song *errored_song;
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volatile enum player_queue_state queueState;
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volatile int8_t queueLockState;
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volatile double seekWhere;
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volatile float crossFade;
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volatile uint16_t softwareVolume;
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volatile double totalPlayTime;
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};
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extern struct player_control pc;
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void pc_init(unsigned int buffered_before_play);
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void pc_deinit(void);
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void
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playerPlay(struct song *song);
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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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int 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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enum player_queue_state getPlayerQueueState(void);
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void setQueueState(enum player_queue_state queueState);
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void playerQueueLock(void);
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void playerQueueUnlock(void);
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int
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playerSeek(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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void setPlayerSoftwareVolume(int volume);
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double getPlayerTotalPlayTime(void);
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unsigned int getPlayerSampleRate(void);
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unsigned getPlayerBits(void);
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unsigned getPlayerChannels(void);
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struct song *
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playerCurrentDecodeSong(void);
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void playerInit(void);
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#endif
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