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/*
* mpc123 - Musepack Console audio player
* Copyright (C) 2005-2008 Fernando Vezzosi <fv at linuxvar.it>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define _GNU_SOURCE
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <string.h>
#include <errno.h>
#include "mpc123.h"
/* populate playlist from file */
int populate_playlist_from_file(playlist_t *pl, const char *fname){
FILE *fd = fopen(fname, "r");
char *strFile;
size_t strSize = 128;
int sl,i=0;
if(!fd)
dief("Could not open playlist \"%s\": %s\n", fname, strerror(errno));
/* allocating initial buffer for getline*/
strFile = (char *)malloc(strSize);
/* allocating initial playlist */
pl->files = (char **)malloc(0);
while(getline(&strFile, &strSize, fd) != -1){ /* get a playlist element */
sl=strlen(strFile);
strFile[sl-1] = '\0'; /* remove \n */
if(sl==1) /* empty line*/
continue;
debugf("Read string: \"%s\"", strFile);
/* allocate and strcpy each element */
pl->files = realloc(pl->files, (i+1)*sizeof(char*));
pl->files[i]=(char*)malloc(sl+1);
strncpy(pl->files[i], strFile, sl);
debugf(" \"%s\"", pl->files[i]);
i++;
}
pl->files[i]=NULL;
/* insert info about playlist length */
pl->n_elems=i;
if(options.verbosity)
printf("Playlist has %d elements\n", pl->n_elems);
fclose(fd);
free(strFile);
return 0;
}
/* populate array from argv[optind], n elements */
int populate_playlist_from_argv(playlist_t * pl, char ** argv,
int optind, int n){
int i=0;
int sl=0;
debugf("before black magic: argv[0]=\"%s\", optind=%d, n=%d",
argv[0], optind, n);
/* black magic */
argv=&argv[optind];
debugf("after black magic: argv[0]=\"%s\", optind=%d, n=%d",
argv[0], optind, n);
/* allocate main array (n elements + NULL) */
pl->files=(char **)malloc(sizeof(char*) * n+1);
/* scramble playlist */
if(options.shuffle && !options.random){
i = shuffle(pl->files, n, argv);
debug("shuffle done");
} else {
/* otherwise just allocate and strcpy each element */
for(i=0; i<n; i++){
debugf("element \"%s\" ", argv[i]);
sl=strlen(argv[i]);
pl->files[i]=(char*)malloc(sl+1);
strncpy(pl->files[i], argv[i], sl+1);
debugf(" \"%s\"", pl->files[i]);
}
}
pl->files[i]=NULL;
/* insert info about playlist length */
pl->n_elems=i;
sayf(2, "Playlist has %d elements\n", pl->n_elems);
return 0;
}
/* do the real job:
* - select next file to play
* - consider options
*/
int do_play_playlist(playlist_t *pl){
reader_data data;
mpc_reader * mpc123_general_reader;
int ret=0;
int current=0; /* we play pl->files[current] */
if(options.random){
srand(time(NULL)); /* in case we want to use rand() */
current=rand() % pl->n_elems; /* first item to be played */
}
/* main playing loop */
while(1){
if(!pl->files[current])
return 1;
sayf(1, "Playing Musepack audio stream from \"%s\"...\n",
pl->files[current]);
data.length=0;
data.curr_pos=0;
if( (reader_choose_and_prepare(pl->files[current],
&mpc123_general_reader, &data)) == 0){
/* play it ;) */
ret=do_play_stream(mpc123_general_reader, &data);
debugf("Stream play returned [%d] %s", ret, ret ? " !!" : "");
/* clean up (close fds, etc..) */
do_cleanup_stream(mpc123_general_reader, &data);
}else{
sayf(0, "Error choosing method for stream: \"%s\"\n",
pl->files[current]);
}
/* couldn't play the stream; it's likely
* we won't be able to play the next either
*/
if(ret)
break;
/* no more stuff to play? break; */
debugf("random=%d, pl->files[%d+1]=\"%s\", willstop=%d",
options.random, current, pl->files[current+1],
mpc123_flag_isset(MPC123_FL_STOP));
if((!options.random && !pl->files[current+1])
|| mpc123_flag_isset(MPC123_FL_STOP) )
break;
/* select next playlist element */
if(options.random){
current=rand() % pl->n_elems;
}else{
current++;
}
}
return 0;
}
/* free playlist mallocated memory */
int free_playlist(playlist_t *pl){
int i;
for(i=pl->n_elems;i!=0;i--){
debugf("Freeing Memory: %s", pl->files[i-1]);
free(pl->files[i-1]); /* free each single elements */
}
free(pl->files); /* free main array */
return 0;
}
/* vim:ft=c:tw=78:ts=2:et:cin:
*/
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