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-rw-r--r--src/player.c397
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diff --git a/src/player.c b/src/player.c
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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 "player.h"
+#include "decode.h"
+#include "command.h"
+#include "interface.h"
+#include "playlist.h"
+#include "ls.h"
+#include "listen.h"
+#include "path.h"
+#include "log.h"
+#include "utils.h"
+#include "tables.h"
+#include "directory.h"
+#include "volume.h"
+#include "playerData.h"
+#include "permission.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+
+int player_pid = 0;
+int player_termSent = 0;
+
+void resetPlayer() {
+ player_pid = 0;
+ player_termSent = 0;
+ getPlayerData()->playerControl.stop = 0;
+ getPlayerData()->playerControl.play = 0;
+ getPlayerData()->playerControl.pause = 0;
+ getPlayerData()->playerControl.lockQueue = 0;
+ getPlayerData()->playerControl.unlockQueue = 0;
+ getPlayerData()->playerControl.state = PLAYER_STATE_STOP;
+ getPlayerData()->playerControl.queueState = PLAYER_QUEUE_UNLOCKED;
+ getPlayerData()->playerControl.seek = 0;
+}
+
+void player_sigHandler(int signal) {
+ if(signal==SIGCHLD) {
+ int status;
+ if(player_pid==wait3(&status,WNOHANG,NULL)) {
+ if(WIFSIGNALED(status) && WTERMSIG(status)!=SIGTERM) {
+ ERROR("player process died from a "
+ "non-TERM signal: %i\n",
+ WTERMSIG(status));
+ }
+ resetPlayer();
+ }
+ }
+}
+
+int playerInit() {
+ player_pid = fork();
+
+ if(player_pid==0) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+ struct sigaction sa;
+ sa.sa_flags = 0;
+ sigemptyset(&sa.sa_mask);
+
+ sa.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE,&sa,NULL);
+ sa.sa_handler = decodeSigHandler;
+ sigaction(SIGCHLD,&sa,NULL);
+ sigaction(SIGTERM,&sa,NULL);
+
+ close(listenSocket);
+ finishPlaylist();
+ freeAllInterfaces();
+ closeMp3Directory();
+ closeTables();
+ finishPaths();
+ finishPermissions();
+ finishCommands();
+ finishVolume();
+
+ while(1) {
+ if(pc->play) decode();
+ else if(pc->stop) pc->stop = 0;
+ else if(pc->pause) pc->pause = 0;
+ else if(pc->closeAudio) {
+ finishAudio();
+ pc->closeAudio = 0;
+ kill(getppid(),SIGUSR1);
+ }
+ else if(pc->lockQueue) {
+ pc->queueLockState = PLAYER_QUEUE_LOCKED;
+ pc->lockQueue = 0;
+ }
+ else if(pc->unlockQueue) {
+ pc->queueLockState = PLAYER_QUEUE_UNLOCKED;
+ pc->unlockQueue = 0;
+ }
+ else usleep(1000);
+ }
+
+ exit(0);
+ }
+ else if(player_pid<0) {
+ ERROR("player Problems fork()'ing\n");
+ player_pid = 0;
+
+ return -1;
+ }
+
+ return 0;
+}
+
+int playerPlay(FILE * fp, char * utf8file) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+ if(fp==NULL) fp = stderr;
+
+ if(playerStop(fp)<0) return -1;
+
+ {
+ struct stat st;
+ if(stat(rmp2amp(utf8ToFsCharset(utf8file)),&st)<0) {
+ strcpy(pc->erroredFile,pc->file);
+ pc->error = PLAYER_ERROR_FILENOTFOUND;
+ return 0;
+ }
+ }
+
+ if(0);
+#ifdef HAVE_MAD
+ else if(isMp3(utf8file)) pc->decodeType = DECODE_TYPE_MP3;
+#endif
+#ifdef HAVE_OGG
+ else if(isOgg(utf8file)) pc->decodeType = DECODE_TYPE_OGG;
+#endif
+#ifdef HAVE_FLAC
+ else if(isFlac(utf8file)) pc->decodeType = DECODE_TYPE_FLAC;
+#endif
+#ifdef HAVE_AUDIOFILE
+ else if(isWave(utf8file)) pc->decodeType = DECODE_TYPE_AUDIOFILE;
+#endif
+ else {
+ strcpy(pc->erroredFile,pc->file);
+ pc->error = PLAYER_ERROR_UNKTYPE;
+ return 0;
+ }
+
+ strcpy(pc->file,rmp2amp(utf8ToFsCharset(utf8file)));
+
+ pc->play = 1;
+ if(player_pid==0 && playerInit()<0) {
+ pc->play = 0;
+ return -1;
+ }
+
+ while(player_pid>0 && pc->play) usleep(10);
+
+ return 0;
+}
+
+int playerStop(FILE * fp) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(player_pid>0 && pc->state!=PLAYER_STATE_STOP) {
+ pc->stop = 1;
+ while(player_pid>0 && pc->stop) usleep(10);
+ }
+
+ pc->queueState = PLAYER_QUEUE_BLANK;
+ playerQueueUnlock();
+
+ return 0;
+}
+
+void playerKill() {
+ int pid;
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ playerStop(stderr);
+ playerCloseAudio(stderr);
+ if(player_pid>0 && pc->closeAudio) sleep(1);
+
+ pid = player_pid;
+ if(pid>0) kill(pid,SIGTERM);
+}
+
+int playerPause(FILE * fp) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(player_pid>0 && pc->state!=PLAYER_STATE_STOP) {
+ pc->pause = 1;
+ while(player_pid>0 && pc->pause) usleep(10);
+ }
+
+ return 0;
+}
+
+int getPlayerElapsedTime() {
+ return (int)(getPlayerData()->playerControl.elapsedTime+0.5);
+}
+
+unsigned long getPlayerBitRate() {
+ return getPlayerData()->playerControl.bitRate;
+}
+
+int getPlayerTotalTime() {
+ return (int)(getPlayerData()->playerControl.totalTime+0.5);
+}
+
+int getPlayerState() {
+ return getPlayerData()->playerControl.state;
+}
+
+void clearPlayerError() {
+ getPlayerData()->playerControl.error = 0;
+}
+
+int getPlayerError() {
+ return getPlayerData()->playerControl.error;
+}
+
+char * getPlayerErrorStr() {
+ static char error[2*MAXPATHLEN];
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ switch(pc->error) {
+ case PLAYER_ERROR_FILENOTFOUND:
+ sprintf(error,"file \"%s\" does not exist or is inaccesible",
+ pc->erroredFile);
+ return error;
+ case PLAYER_ERROR_FILE:
+ sprintf(error,"problems decoding \"%s\"",pc->erroredFile);
+ return error;
+ case PLAYER_ERROR_AUDIO:
+ sprintf(error,"problems opening audio device");
+ return error;
+ case PLAYER_ERROR_SYSTEM:
+ sprintf(error,"system error occured");
+ return error;
+ case PLAYER_ERROR_UNKTYPE:
+ sprintf(error,"file type of \"%s\" is unknown",pc->erroredFile);
+ return error;
+ default:
+ return NULL;
+ }
+}
+
+void playerCloseAudio() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(player_pid>0) {
+ if(playerStop(stderr)<0) return;
+ pc->closeAudio = 1;
+ }
+}
+
+int queueSong(char * utf8file) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(pc->queueState==PLAYER_QUEUE_BLANK) {
+ strcpy(pc->file,rmp2amp(utf8ToFsCharset(utf8file)));
+
+ if(0);
+#ifdef HAVE_MAD
+ else if(isMp3(utf8file)) pc->decodeType = DECODE_TYPE_MP3;
+#endif
+#ifdef HAVE_OGG
+ else if(isOgg(utf8file)) pc->decodeType = DECODE_TYPE_OGG;
+#endif
+#ifdef HAVE_FLAC
+ else if(isFlac(utf8file)) pc->decodeType = DECODE_TYPE_FLAC;
+#endif
+#ifdef HAVE_AUDIOFILE
+ else if(isWave(utf8file)) {
+ pc->decodeType = DECODE_TYPE_AUDIOFILE;
+ }
+#endif
+ else return -1;
+ pc->queueState = PLAYER_QUEUE_FULL;
+ return 0;
+ }
+
+ return -1;
+}
+
+int getPlayerQueueState() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ return pc->queueState;
+}
+
+void setQueueState(int queueState) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ pc->queueState = queueState;
+}
+
+void playerQueueLock() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(player_pid>0 && pc->queueLockState==PLAYER_QUEUE_UNLOCKED)
+ {
+ pc->lockQueue = 1;
+ while(player_pid>0 && pc->lockQueue) usleep(10);
+ }
+}
+
+void playerQueueUnlock() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(player_pid>0 && pc->queueLockState==PLAYER_QUEUE_LOCKED)
+ {
+ pc->unlockQueue = 1;
+ while(player_pid>0 && pc->unlockQueue) usleep(10);
+ }
+}
+
+int playerSeek(FILE * fp, char * file, float time) {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(pc->state==PLAYER_STATE_STOP) {
+ myfprintf(fp,"%s player not currently playing\n",
+ COMMAND_RESPOND_ERROR);
+ return -1;
+ }
+
+ if(strcmp(pc->file,rmp2amp(file))!=0) strcpy(pc->file,rmp2amp(file));
+ /*if(playerStop(fp)<0) return -1;
+ if(playerPlay(stderr,file)<0) return -1;*/
+ /*}*/
+
+ if(pc->error==PLAYER_ERROR_NOERROR) {
+ pc->seekWhere = time;
+ pc->seek = 1;
+ while(player_pid>0 && pc->seek) usleep(10);
+ }
+
+ return 0;
+}
+
+float getPlayerCrossFade() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ return pc->crossFade;
+}
+
+void setPlayerCrossFade(float crossFadeInSeconds) {
+ if(crossFadeInSeconds<0) crossFadeInSeconds = 0;
+
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ pc->crossFade = crossFadeInSeconds;
+}
+
+void setPlayerSoftwareVolume(int volume) {
+ volume = (volume>100) ? 100 : (volume<0 ? 0 : volume);
+
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ pc->softwareVolume = volume;
+}
+
+int getPlayerSoftwareVolume() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ return pc->softwareVolume;
+}
+
+double getPlayerTotalPlayTime() {
+ PlayerControl * pc = &(getPlayerData()->playerControl);
+
+ if(pc->state==PLAYER_STATE_STOP) {
+ return pc->totalPlayTime;
+ }
+
+ return pc->totalPlayTime+pc->elapsedTime-pc->beginTime;
+}