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
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc_interface.h>
  34 #include <vlc_playlist.h>
  35 #include <vlc_input.h>
  36 #include <vlc_meta.h>
  37
  38 #include <errno.h>                                                 /* ENOMEM */
  39
  40 /*****************************************************************************
  41  * Local prototypes
  42  *****************************************************************************/
  43 int Export_M3U ( vlc_object_t * );
  44
  45 /*****************************************************************************
  46  * Export_M3U: main export function
  47  *****************************************************************************/
  48 static void DoChildren( playlist_t *p_playlist, playlist_export_t *p_export,
  49                         playlist_item_t *p_root )
  50 {
  51     int i, j;
  52
  53     /* Go through the playlist and add items */
  54     for( i = 0; i< p_root->i_children ; i++)
  55     {
  56         playlist_item_t *p_current = p_root->pp_children[i];
  57         assert( p_current );
  58
  59         if( p_current->i_flags & PLAYLIST_SAVE_FLAG )
  60             continue;
  61
  62         if( p_current->i_children >= 0 )
  63         {
  64             DoChildren( p_playlist, p_export, p_current );
  65             continue;
  66         }
  67
  68         /* General info */
  69
  70         char *psz_uri = input_item_GetURI( p_current->p_input );
  71
  72         assert( psz_uri );
  73
  74         char *psz_name = input_item_GetName( p_current->p_input );
  75         if( psz_name && strcmp( psz_uri, psz_name ) )
  76         {
  77             char *psz_artist = input_item_GetArtist( p_current->p_input );
  78             if( psz_artist == NULL ) psz_artist = strdup( "" );
  79             mtime_t i_duration = input_item_GetDuration( p_current->p_input );
  80             if( psz_artist && *psz_artist )
  81             {
  82                 /* write EXTINF with artist */
  83                 fprintf( p_export->p_file, "#EXTINF:%i,%s - %s\n",
  84                           (int)( i_duration / 1000000 ), psz_artist, psz_name);
  85             }
  86             else
  87             {
  88                 /* write EXTINF without artist */
  89                 fprintf( p_export->p_file, "#EXTINF:%i,%s\n",
  90                          (int)( i_duration / 1000000 ), psz_name);
  91             }
  92             free( psz_artist );
  93         }
  94         free( psz_name );
  95
  96         /* VLC specific options */
  97         vlc_mutex_lock( &p_current->p_input->lock );
  98         for( j = 0; j < p_current->p_input->i_options; j++ )
  99         {
 100             fprintf( p_export->p_file, "#EXTVLCOPT:%s\n",
 101                      p_current->p_input->ppsz_options[j][0] == ':' ?
 102                      p_current->p_input->ppsz_options[j] + 1 :
 103                      p_current->p_input->ppsz_options[j] );
 104         }
 105         vlc_mutex_unlock( &p_current->p_input->lock );
 106
 107         fprintf( p_export->p_file, "%s\n", psz_uri );
 108         free( psz_uri );
 109     }
 110 }
 111
 112 int Export_M3U( vlc_object_t *p_this )
 113 {
 114     playlist_t *p_playlist = (playlist_t*)p_this;
 115     playlist_export_t *p_export = (playlist_export_t *)p_playlist->p_private;
 116
 117     msg_Dbg(p_playlist, "saving using M3U format");
 118
 119     /* Write header */
 120     fprintf( p_export->p_file, "#EXTM3U\n" );
 121
 122     DoChildren( p_playlist, p_export, p_export->p_root );
 123     return VLC_SUCCESS;
 124 }