git.sesse.net Git - vlc/blob - modules/misc/playlist/m3u.c

   1 /*****************************************************************************
   2  * m3u.c :  M3U playlist export module
   3  *****************************************************************************
   4  * Copyright (C) 2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28
  29 #include <vlc/vlc.h>
  30 #include <vlc_interface.h>
  31 #include <vlc_playlist.h>
  32 #include <vlc_input.h>
  33 #include <vlc_meta.h>
  34
  35 #include <errno.h>                                                 /* ENOMEM */
  36
  37 /*****************************************************************************
  38  * Local prototypes
  39  *****************************************************************************/
  40 int Export_M3U ( vlc_object_t * );
  41
  42 /*****************************************************************************
  43  * Export_M3U: main export function
  44  *****************************************************************************/
  45 static void DoChildren( playlist_t *p_playlist, playlist_export_t *p_export,
  46                         playlist_item_t *p_root )
  47 {
  48     int i, j;
  49
  50     /* Go through the playlist and add items */
  51     for( i = 0; i< p_root->i_children ; i++)
  52     {
  53         playlist_item_t *p_current = p_root->pp_children[i];
  54         assert( p_current );
  55
  56         if( p_current->i_flags & PLAYLIST_SAVE_FLAG )
  57             continue;
  58
  59         if( p_current->i_children >= 0 )
  60         {
  61             DoChildren( p_playlist, p_export, p_current );
  62             continue;
  63         }
  64
  65         assert( p_current->p_input->psz_uri );
  66
  67         /* General info */
  68         char *psz_name = input_item_GetName( p_current->p_input );
  69         if( psz_name && strcmp( p_current->p_input->psz_uri, psz_name ) )
  70         {
  71             char *psz_artist = input_item_GetArtist( p_current->p_input );
  72             if( psz_artist == NULL ) psz_artist = strdup( "" );
  73             if( psz_artist && *psz_artist )
  74             {
  75                 /* write EXTINF with artist */
  76                 fprintf( p_export->p_file, "#EXTINF:%i,%s - %s\n",
  77                           (int)( p_current->p_input->i_duration/1000000 ),
  78                           psz_artist,
  79                           p_current->p_input->psz_name);
  80             }
  81             else
  82             {
  83                 /* write EXTINF without artist */
  84                 fprintf( p_export->p_file, "#EXTINF:%i,%s\n",
  85                          (int)( p_current->p_input->i_duration/1000000 ),
  86                           p_current->p_input->psz_name);
  87             }
  88             free( psz_artist );
  89         }
  90         free( psz_name );
  91
  92         /* VLC specific options */
  93         for( j = 0; j < p_current->p_input->i_options; j++ )
  94         {
  95             fprintf( p_export->p_file, "#EXTVLCOPT:%s\n",
  96                      p_current->p_input->ppsz_options[j][0] == ':' ?
  97                      p_current->p_input->ppsz_options[j] + 1 :
  98                      p_current->p_input->ppsz_options[j] );
  99         }
 100
 101         fprintf( p_export->p_file, "%s\n",
 102                  p_current->p_input->psz_uri );
 103     }
 104 }
 105
 106 int Export_M3U( vlc_object_t *p_this )
 107 {
 108     playlist_t *p_playlist = (playlist_t*)p_this;
 109     playlist_export_t *p_export = (playlist_export_t *)p_playlist->p_private;
 110
 111     msg_Dbg(p_playlist, "saving using M3U format");
 112
 113     /* Write header */
 114     fprintf( p_export->p_file, "#EXTM3U\n" );
 115
 116     DoChildren( p_playlist, p_export, p_export->p_root );
 117     return VLC_SUCCESS;
 118 }