import from SF CVS

git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 397 insertions, 0 deletions

diff --git a/src/player.c b/src/player.c
new file mode 100644
index 000000000..cf09f388b
--- /dev/null
+++ b/src/player.c
@@ -0,0 +1,397 @@
+/* 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;
+}