git.sesse.net Git - vlc/blob - modules/demux/playlist/pls.c

   1 /*****************************************************************************
   2  * pls.c : PLS playlist format import
   3  *****************************************************************************
   4  * Copyright (C) 2004 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdlib.h>                                      /* malloc(), free() */
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc/input.h>
  32 #include <vlc/intf.h>
  33
  34 #include <errno.h>                                                 /* ENOMEM */
  35 #include "playlist.h"
  36
  37 struct demux_sys_t
  38 {
  39     char *psz_prefix;
  40 };
  41
  42 /*****************************************************************************
  43  * Local prototypes
  44  *****************************************************************************/
  45 static int Demux( demux_t *p_demux);
  46 static int Control( demux_t *p_demux, int i_query, va_list args );
  47
  48 /*****************************************************************************
  49  * Import_PLS: main import function
  50  *****************************************************************************/
  51 int Import_PLS( vlc_object_t *p_this )
  52 {
  53     demux_t *p_demux = (demux_t *)p_this;
  54
  55     uint8_t *p_peek;
  56     char    *psz_ext;
  57
  58     if( stream_Peek( p_demux->s , &p_peek, 7 ) < 7 )
  59     {
  60         msg_Err( p_demux, "cannot peek" );
  61         return VLC_EGENERIC;
  62     }
  63     psz_ext = strrchr ( p_demux->psz_path, '.' );
  64
  65     if( !strncasecmp( p_peek, "[playlist]", 10 ) )
  66     {
  67         ;
  68     }
  69     else if( ( psz_ext && !strcasecmp( psz_ext, ".pls") ) ||
  70              ( p_demux->psz_demux && !strcmp(p_demux->psz_demux, "pls") ) )
  71     {
  72         ;
  73     }
  74     else
  75     {
  76         msg_Warn(p_demux, "pls import module discarded");
  77         return VLC_EGENERIC;
  78
  79     }
  80     msg_Dbg( p_demux, "found valid PLS playlist file");
  81
  82     p_demux->pf_control = Control;
  83     p_demux->pf_demux = Demux;
  84     p_demux->p_sys = malloc( sizeof(demux_sys_t) );
  85     if( p_demux->p_sys == NULL )
  86     {
  87         msg_Err( p_demux, "Out of memory" );
  88         return VLC_ENOMEM;
  89     }
  90     p_demux->p_sys->psz_prefix = FindPrefix( p_demux );
  91
  92     return VLC_SUCCESS;
  93 }
  94
  95 /*****************************************************************************
  96  * Deactivate: frees unused data
  97  *****************************************************************************/
  98 void Close_PLS( vlc_object_t *p_this )
  99 {
 100     demux_t *p_demux = (demux_t *)p_this;
 101     if( p_demux->p_sys->psz_prefix )
 102     {
 103         free( p_demux->p_sys->psz_prefix );
 104     }
 105     free( p_demux->p_sys );
 106 }
 107
 108 static int Demux( demux_t *p_demux )
 109 {
 110     mtime_t        i_duration = -1;
 111     char          *psz_name = NULL;
 112     char          *psz_line;
 113     char          *psz_mrl = NULL;
 114     char          *psz_key;
 115     char          *psz_value;
 116     playlist_t    *p_playlist;
 117     int            i_position;
 118     int            i_item = -1;
 119     int            i_new_item = 0;
 120     int            i_key_length;
 121     playlist_item_t *p_parent;
 122     vlc_bool_t b_play;
 123
 124     p_playlist = (playlist_t *) vlc_object_find( p_demux, VLC_OBJECT_PLAYLIST,
 125                                                  FIND_PARENT );
 126     if( !p_playlist )
 127     {
 128         msg_Err( p_demux, "can't find playlist" );
 129         return -1;
 130     }
 131
 132     b_play = FindItem( p_demux, p_playlist, p_parent );
 133     p_parent->input.i_type = ITEM_TYPE_PLAYLIST;
 134
 135     /* Change the item to a node */
 136     if( p_parent->i_children == -1)
 137     {
 138         playlist_ItemToNode( p_playlist,p_parent );
 139     }
 140
 141     while( ( psz_line = stream_ReadLine( p_demux->s ) ) )
 142     {
 143         if( !strncasecmp( psz_line, "[playlist]", sizeof("[playlist]")-1 ) )
 144         {
 145             free( psz_line );
 146             continue;
 147         }
 148         psz_key = psz_line;
 149         psz_value = strchr( psz_line, '=' );
 150         if( psz_value )
 151         {
 152             *psz_value='\0';
 153             psz_value++;
 154         }
 155         else
 156         {
 157             msg_Warn( p_demux, "invalid line in pls file" );
 158             free( psz_line );
 159             continue;
 160         }
 161         if( !strcasecmp( psz_key, "version" ) )
 162         {
 163             msg_Dbg( p_demux, "pls file version: %s", psz_value );
 164             free( psz_line );
 165             continue;
 166         }
 167         /* find the number part of of file1, title1 or length1 etc */
 168         i_key_length = strlen( psz_key );
 169         if( i_key_length >= 5 ) /* file1 type case */
 170         {
 171             i_new_item = atoi( psz_key + 4 );
 172             if( i_new_item == 0 && i_key_length >= 6 ) /* title1 type case */
 173             {
 174                 i_new_item = atoi( psz_key + 5 );
 175                 if( i_new_item == 0 && i_key_length >= 7 ) /* length1 type case */
 176                 {
 177                     i_new_item = atoi( psz_key + 6 );
 178                 }
 179             }
 180         }
 181         if( i_new_item == 0 )
 182         {
 183             msg_Warn( p_demux, "couldn't find number of items" );
 184             free( psz_line );
 185             continue;
 186         }
 187         if( i_item == -1 )
 188         {
 189             i_item = i_new_item;
 190         }
 191         /* we found a new item, insert the previous */
 192         if( i_item != i_new_item )
 193         {
 194             if( psz_mrl )
 195             {
 196                 playlist_item_t *p_item = playlist_ItemNew( p_playlist, psz_mrl,
 197                                                             psz_name );
 198
 199                 playlist_NodeAddItem( p_playlist,p_item,
 200                                       p_parent->pp_parents[0]->i_view,
 201                                       p_parent,
 202                                       PLAYLIST_APPEND, PLAYLIST_END );
 203
 204                 playlist_CopyParents( p_parent, p_item );
 205                 if( i_duration != -1 )
 206                 {
 207                     //playlist_SetDuration( p_playlist, i_position, i_duration );
 208                 }
 209                 i_position++;
 210                 free( psz_mrl );
 211                 psz_mrl = NULL;
 212
 213                 vlc_input_item_CopyOptions( &p_parent->input,
 214                                             &p_item->input );
 215             }
 216             else
 217             {
 218                 msg_Warn( p_demux, "no file= part found for item %d", i_item );
 219             }
 220             if( psz_name )
 221             {
 222                 free( psz_name );
 223                 psz_name = NULL;
 224             }
 225             i_duration = -1;
 226             i_item = i_new_item;
 227             i_new_item = 0;
 228         }
 229         if( !strncasecmp( psz_key, "file", sizeof("file") -1 ) )
 230         {
 231             psz_mrl = ProcessMRL( psz_value, p_demux->p_sys->psz_prefix );
 232         }
 233         else if( !strncasecmp( psz_key, "title", sizeof("title") -1 ) )
 234         {
 235             psz_name = strdup( psz_value );
 236         }
 237         else if( !strncasecmp( psz_key, "length", sizeof("length") -1 ) )
 238         {
 239             i_duration = atoi( psz_value );
 240             if( i_duration != -1 )
 241             {
 242                 i_duration *= 1000000;
 243             }
 244         }
 245         else
 246         {
 247             msg_Warn( p_demux, "unknown key found in pls file: %s", psz_key );
 248         }
 249         free( psz_line );
 250     }
 251     /* Add last object */
 252     if( psz_mrl )
 253     {
 254         playlist_item_t *p_item = playlist_ItemNew( p_playlist, psz_mrl,
 255                                                     psz_name );
 256
 257         playlist_NodeAddItem( p_playlist,p_item,
 258                               p_parent->pp_parents[0]->i_view,
 259                               p_parent,
 260                               PLAYLIST_APPEND, PLAYLIST_END );
 261
 262         playlist_CopyParents( p_parent, p_item );
 263         if( i_duration != -1 )
 264         {
 265             //playlist_SetDuration( p_playlist, i_position, i_duration );
 266         }
 267         free( psz_mrl );
 268         psz_mrl = NULL;
 269
 270         vlc_input_item_CopyOptions( &p_parent->input,
 271                                     &p_item->input );
 272     }
 273     else
 274     {
 275         msg_Warn( p_demux, "no file= part found for item %d", i_item );
 276     }
 277     if( psz_name )
 278     {
 279         free( psz_name );
 280         psz_name = NULL;
 281     }
 282
 283     if( b_play )
 284     {
 285         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY,
 286                           p_playlist->status.i_view,
 287                           p_playlist->status.p_item, NULL );
 288     }
 289     vlc_object_release( p_playlist );
 290     return VLC_SUCCESS;
 291 }
 292
 293 static int Control( demux_t *p_demux, int i_query, va_list args )
 294 {
 295     return VLC_EGENERIC;
 296 }