src/player.h

   1 /* the Music Player Daemon (MPD)
   2  * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
   3  * This project's homepage is: http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef PLAYER_H
  20 #define PLAYER_H
  21
  22 #include "../config.h"
  23
  24 #include "decode.h"
  25 #include "mpd_types.h"
  26 #include "song.h"
  27 #include "metadataChunk.h"
  28
  29 #include <stdio.h>
  30 #include <sys/param.h>
  31
  32 #define PLAYER_STATE_STOP       0
  33 #define PLAYER_STATE_PAUSE      1
  34 #define PLAYER_STATE_PLAY       2
  35
  36 #define PLAYER_ERROR_NOERROR            0
  37 #define PLAYER_ERROR_FILE               1
  38 #define PLAYER_ERROR_AUDIO              2
  39 #define PLAYER_ERROR_SYSTEM             3
  40 #define PLAYER_ERROR_UNKTYPE            4
  41 #define PLAYER_ERROR_FILENOTFOUND       5
  42
  43 /* 0->1->2->3->5 regular playback
  44  *        ->4->0 don't play queued song
  45  */
  46 #define PLAYER_QUEUE_BLANK      0
  47 #define PLAYER_QUEUE_FULL       1
  48 #define PLAYER_QUEUE_DECODE     2
  49 #define PLAYER_QUEUE_PLAY       3
  50 #define PLAYER_QUEUE_STOP       4
  51 #define PLAYER_QUEUE_EMPTY      5
  52
  53 #define PLAYER_QUEUE_UNLOCKED   0
  54 #define PLAYER_QUEUE_LOCKED     1
  55
  56 #define PLAYER_METADATA_STATE_READ      1
  57 #define PLAYER_METADATA_STATE_WRITE     2
  58
  59 typedef struct _PlayerControl {
  60         volatile mpd_sint8 wait;
  61         volatile mpd_sint8 stop;
  62         volatile mpd_sint8 play;
  63         volatile mpd_sint8 pause;
  64         volatile mpd_sint8 state;
  65         volatile mpd_sint8 closeAudio;
  66         volatile mpd_sint8 error;
  67         volatile mpd_uint16 bitRate;
  68         volatile mpd_sint8 bits;
  69         volatile mpd_sint8 channels;
  70         volatile mpd_uint32 sampleRate;
  71         volatile float totalTime;
  72         volatile float elapsedTime;
  73         volatile float fileTime;
  74         char utf8url[MAXPATHLEN + 1];
  75         char currentUrl[MAXPATHLEN + 1];
  76         char erroredUrl[MAXPATHLEN + 1];
  77         volatile mpd_sint8 queueState;
  78         volatile mpd_sint8 queueLockState;
  79         volatile mpd_sint8 lockQueue;
  80         volatile mpd_sint8 unlockQueue;
  81         volatile mpd_sint8 seek;
  82         volatile double seekWhere;
  83         volatile float crossFade;
  84         volatile mpd_uint16 softwareVolume;
  85         volatile double totalPlayTime;
  86         volatile int decode_pid;
  87         volatile mpd_sint8 cycleLogFiles;
  88         volatile mpd_sint8 metadataState;
  89         MetadataChunk metadataChunk;
  90         MetadataChunk fileMetadataChunk;
  91 } PlayerControl;
  92
  93 void clearPlayerPid(void);
  94
  95 void player_sigChldHandler(int pid, int status);
  96
  97 int playerPlay(int fd, Song * song);
  98
  99 int playerSetPause(int fd, int pause);
 100
 101 int playerPause(int fd);
 102
 103 int playerStop(int fd);
 104
 105 void playerCloseAudio(void);
 106
 107 void playerKill(void);
 108
 109 int getPlayerTotalTime(void);
 110
 111 int getPlayerElapsedTime(void);
 112
 113 unsigned long getPlayerBitRate(void);
 114
 115 int getPlayerState(void);
 116
 117 void clearPlayerError(void);
 118
 119 char *getPlayerErrorStr(void);
 120
 121 int getPlayerError(void);
 122
 123 int playerInit(void);
 124
 125 int playerWait(int fd);
 126
 127 int queueSong(Song * song);
 128
 129 int getPlayerQueueState(void);
 130
 131 void setQueueState(int queueState);
 132
 133 void playerQueueLock(void);
 134
 135 void playerQueueUnlock(void);
 136
 137 int playerSeek(int fd, Song * song, float time);
 138
 139 void setPlayerCrossFade(float crossFadeInSeconds);
 140
 141 float getPlayerCrossFade(void);
 142
 143 void setPlayerSoftwareVolume(int volume);
 144
 145 double getPlayerTotalPlayTime(void);
 146
 147 unsigned int getPlayerSampleRate(void);
 148
 149 int getPlayerBits(void);
 150
 151 int getPlayerChannels(void);
 152
 153 void playerCycleLogFiles(void);
 154
 155 Song *playerCurrentDecodeSong(void);
 156
 157 #endif