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

   1 /*****************************************************************************
   2  * pls.c : PLS playlist format import
   3  *****************************************************************************
   4  * Copyright (C) 2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  * Authors: Sigmund Augdal Helberg <dnumgis@videolan.org>
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <vlc/vlc.h>
  29 #include <vlc_demux.h>
  30
  31 #include "playlist.h"
  32
  33 struct demux_sys_t
  34 {
  35     char *psz_prefix;
  36 };
  37
  38 /*****************************************************************************
  39  * Local prototypes
  40  *****************************************************************************/
  41 static int Demux( demux_t *p_demux);
  42 static int Control( demux_t *p_demux, int i_query, va_list args );
  43
  44 /*****************************************************************************
  45  * Import_PLS: main import function
  46  *****************************************************************************/
  47 int E_(Import_PLS)( vlc_object_t *p_this )
  48 {
  49     demux_t *p_demux = (demux_t *)p_this;
  50     uint8_t *p_peek;
  51     CHECK_PEEK( p_peek, 10 );
  52
  53     if( POKE( p_peek, "[playlist]", 10 ) || POKE( p_peek, "[Reference]", 10 ) ||
  54         isExtension( p_demux, ".pls" )   || isDemux( p_demux, "pls" ) )
  55     {
  56         ;
  57     }
  58     else return VLC_EGENERIC;
  59
  60     STANDARD_DEMUX_INIT_MSG(  "found valid PLS playlist file");
  61     p_demux->p_sys->psz_prefix = E_(FindPrefix)( p_demux );
  62
  63     return VLC_SUCCESS;
  64 }
  65
  66 /*****************************************************************************
  67  * Deactivate: frees unused data
  68  *****************************************************************************/
  69 void E_(Close_PLS)( vlc_object_t *p_this )
  70 {
  71     demux_t *p_demux = (demux_t *)p_this;
  72     if( p_demux->p_sys->psz_prefix )
  73     {
  74         free( p_demux->p_sys->psz_prefix );
  75     }
  76     free( p_demux->p_sys );
  77 }
  78
  79 static int Demux( demux_t *p_demux )
  80 {
  81     mtime_t        i_duration = -1;
  82     char          *psz_name = NULL;
  83     char          *psz_line;
  84     char          *psz_mrl = NULL;
  85     char          *psz_mrl_orig = NULL;
  86     char          *psz_key;
  87     char          *psz_value;
  88     int            i_item = -1;
  89     int            i_new_item = 0;
  90     int            i_key_length;
  91     input_item_t *p_input;
  92
  93     INIT_PLAYLIST_STUFF;
  94
  95     while( ( psz_line = stream_ReadLine( p_demux->s ) ) )
  96     {
  97         if( !strncasecmp( psz_line, "[playlist]", sizeof("[playlist]")-1 ) ||
  98             !strncasecmp( psz_line, "[Reference]", sizeof("[Reference]")-1 ) )
  99         {
 100             free( psz_line );
 101             continue;
 102         }
 103         psz_key = psz_line;
 104         psz_value = strchr( psz_line, '=' );
 105         if( psz_value )
 106         {
 107             *psz_value='\0';
 108             psz_value++;
 109         }
 110         else
 111         {
 112             msg_Warn( p_demux, "invalid line in pls file" );
 113             free( psz_line );
 114             continue;
 115         }
 116         if( !strcasecmp( psz_key, "version" ) )
 117         {
 118             msg_Dbg( p_demux, "pls file version: %s", psz_value );
 119             free( psz_line );
 120             continue;
 121         }
 122         /* find the number part of of file1, title1 or length1 etc */
 123         i_key_length = strlen( psz_key );
 124         if( i_key_length >= 4 ) /* Ref1 type case */
 125         {
 126             i_new_item = atoi( psz_key + 3 );
 127             if( i_new_item == 0 && i_key_length >= 5 ) /* file1 type case */
 128             {
 129                 i_new_item = atoi( psz_key + 4 );
 130                 if( i_new_item == 0 && i_key_length >= 6 ) /* title1 type case */
 131                 {
 132                     i_new_item = atoi( psz_key + 5 );
 133                     if( i_new_item == 0 && i_key_length >= 7 ) /* length1 type case */
 134                     {
 135                         i_new_item = atoi( psz_key + 6 );
 136                     }
 137                 }
 138             }
 139         }
 140         if( i_new_item == 0 )
 141         {
 142             msg_Warn( p_demux, "couldn't find number of items" );
 143             free( psz_line );
 144             continue;
 145         }
 146         if( i_item == -1 )
 147         {
 148             i_item = i_new_item;
 149         }
 150         /* we found a new item, insert the previous */
 151         if( i_item != i_new_item )
 152         {
 153             if( psz_mrl )
 154             {
 155                 p_input = input_ItemNewExt( p_playlist, psz_mrl, psz_name,
 156                                             0, NULL, -1 );
 157                 input_ItemCopyOptions( p_current->p_input, p_input );
 158                 playlist_BothAddInput( p_playlist, p_input, p_item_in_category,
 159                                        PLAYLIST_APPEND | PLAYLIST_SPREPARSE,
 160                                        PLAYLIST_END, NULL, NULL );
 161             }
 162             else
 163             {
 164                 msg_Warn( p_demux, "no file= part found for item %d", i_item );
 165             }
 166             if( psz_name )
 167             {
 168                 free( psz_name );
 169                 psz_name = NULL;
 170             }
 171             i_duration = -1;
 172             i_item = i_new_item;
 173             i_new_item = 0;
 174         }
 175         if( !strncasecmp( psz_key, "file", sizeof("file") -1 ) ||
 176             !strncasecmp( psz_key, "Ref", sizeof("Ref") -1 ) )
 177         {
 178             psz_mrl_orig =
 179             psz_mrl = E_(ProcessMRL)( psz_value, p_demux->p_sys->psz_prefix );
 180
 181             if( !strncasecmp( psz_key, "Ref", sizeof("Ref") -1 ) )
 182             {
 183                 if( !strncasecmp( psz_mrl, "http://", sizeof("http://") -1 ) )
 184                 {
 185                     psz_mrl++;
 186                     psz_mrl[0] = 'm';
 187                     psz_mrl[1] = 'm';
 188                     psz_mrl[2] = 's';
 189                 }
 190             }
 191         }
 192         else if( !strncasecmp( psz_key, "title", sizeof("title") -1 ) )
 193         {
 194             psz_name = strdup( psz_value );
 195         }
 196         else if( !strncasecmp( psz_key, "length", sizeof("length") -1 ) )
 197         {
 198             i_duration = atoi( psz_value );
 199             if( i_duration != -1 )
 200             {
 201                 i_duration *= 1000000;
 202             }
 203         }
 204         else
 205         {
 206             msg_Warn( p_demux, "unknown key found in pls file: %s", psz_key );
 207         }
 208         free( psz_line );
 209     }
 210     /* Add last object */
 211     if( psz_mrl )
 212     {
 213         p_input = input_ItemNewExt( p_playlist, psz_mrl, psz_name,0, NULL, -1 );
 214         input_ItemCopyOptions( p_current->p_input, p_input );
 215         playlist_BothAddInput( p_playlist, p_input, p_item_in_category,
 216                                PLAYLIST_APPEND | PLAYLIST_SPREPARSE,
 217                                PLAYLIST_END, NULL, NULL );
 218         free( psz_mrl_orig );
 219         psz_mrl = NULL;
 220     }
 221     else
 222     {
 223         msg_Warn( p_demux, "no file= part found for item %d", i_item );
 224     }
 225     if( psz_name )
 226     {
 227         free( psz_name );
 228         psz_name = NULL;
 229     }
 230
 231     HANDLE_PLAY_AND_RELEASE;
 232     return -1; /* Needed for correct operation of go back */
 233 }
 234
 235 static int Control( demux_t *p_demux, int i_query, va_list args )
 236 {
 237     return VLC_EGENERIC;
 238 }