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/* 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>
#include <string.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;
memset(playerData_pd->playerControl.file,0,MAXPATHLEN);
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;
memset(playerData_pd->decoderControl.file,0,MAXPATHLEN);
}
PlayerData * getPlayerData() {
return playerData_pd;
}
void freePlayerData() {
shmdt(playerData_pd);
}
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