diff options
Diffstat (limited to 'src/playerData.c')
| -rw-r--r-- | src/playerData.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/playerData.c b/src/playerData.c new file mode 100644 index 00000000..fee8ac71 --- /dev/null +++ b/src/playerData.c @@ -0,0 +1,124 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * 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 + */ + +#include "playerData.h" +#include "conf.h" +#include "log.h" + +#include <sys/types.h> +#include <sys/ipc.h> +#include <sys/shm.h> +#include <stdio.h> +#include <stdlib.h> + +int buffered_before_play; +int BUFFERED_CHUNKS; + +PlayerData * playerData_pd; + +void initPlayerData() { + float perc; + char * test; + int shmid; + int crossfade = 0; + size_t bufferSize; + size_t allocationSize; + Buffer * buffer; + + bufferSize = strtol(getConf()[CONF_BUFFER_SIZE],&test,10); + if(*test!='\0' || bufferSize<=0) { + ERROR("buffer size \"%s\" is not a positive integer\n", + getConf()[CONF_BUFFER_SIZE]); + exit(-1); + } + bufferSize*=1024; + + BUFFERED_CHUNKS = bufferSize/CHUNK_SIZE; + + perc = strtod((getConf())[CONF_BUFFER_BEFORE_PLAY],&test); + if(*test!='%' || perc<0 || perc>100) { + ERROR("buffered before play \"%s\" is not a positive " + "percentage and less than 100 percent\n", + (getConf())[CONF_BUFFER_BEFORE_PLAY]); + exit(-1); + } + buffered_before_play = (perc/100)*BUFFERED_CHUNKS; + if(buffered_before_play>BUFFERED_CHUNKS) { + buffered_before_play = BUFFERED_CHUNKS; + } + else if(buffered_before_play<0) buffered_before_play = 0; + + allocationSize = BUFFERED_CHUNKS*CHUNK_SIZE; /*actual buffer*/ + allocationSize+= BUFFERED_CHUNKS*sizeof(float); /*for times*/ + allocationSize+= BUFFERED_CHUNKS*sizeof(mpd_sint16); /*for chunkSize*/ + allocationSize+= BUFFERED_CHUNKS*sizeof(mpd_sint16); /*for bitRate*/ + allocationSize+= sizeof(PlayerData); /*for playerData struct*/ + + if((shmid = shmget(IPC_PRIVATE,allocationSize,IPC_CREAT|0600))<0) { + ERROR("problems shmget'ing\n"); + exit(-1); + } + if((playerData_pd = shmat(shmid,NULL,0))<0) { + ERROR("problems shmat'ing\n"); + exit(-1); + } + if (shmctl(shmid, IPC_RMID, 0)<0) { + ERROR("problems shmctl'ing\n"); + exit(-1); + } + + buffer = &(playerData_pd->buffer); + + buffer->chunks = ((char *)playerData_pd)+sizeof(PlayerData); + buffer->chunkSize = (mpd_sint16 *)(((char *)buffer->chunks)+ + BUFFERED_CHUNKS*CHUNK_SIZE); + buffer->bitRate = (mpd_sint16 *)(((char *)buffer->chunkSize)+ + BUFFERED_CHUNKS*sizeof(mpd_sint16)); + buffer->times = (float *)(((char *)buffer->bitRate)+ + BUFFERED_CHUNKS*sizeof(mpd_sint16)); + + playerData_pd->playerControl.stop = 0; + playerData_pd->playerControl.pause = 0; + playerData_pd->playerControl.play = 0; + playerData_pd->playerControl.error = PLAYER_ERROR_NOERROR; + playerData_pd->playerControl.lockQueue = 0; + playerData_pd->playerControl.unlockQueue = 0; + playerData_pd->playerControl.state = PLAYER_STATE_STOP; + playerData_pd->playerControl.queueState = PLAYER_QUEUE_BLANK; + playerData_pd->playerControl.queueLockState = PLAYER_QUEUE_UNLOCKED; + playerData_pd->playerControl.seek = 0; + playerData_pd->playerControl.file[0] = '\0'; + playerData_pd->playerControl.crossFade = crossfade; + playerData_pd->playerControl.softwareVolume = 100; + playerData_pd->playerControl.totalPlayTime = 0; + + playerData_pd->decoderControl.stop = 0; + playerData_pd->decoderControl.start = 0; + playerData_pd->decoderControl.state = DECODE_STATE_STOP; + playerData_pd->decoderControl.seek = 0; + playerData_pd->decoderControl.error = DECODE_ERROR_NOERROR; + playerData_pd->decoderControl.file[0] = '\0'; +} + +PlayerData * getPlayerData() { + return playerData_pd; +} + +void freePlayerData() { + shmdt(playerData_pd); +} |