git.sesse.net Git - vlc/blob - src/input/item.c

   1 /*****************************************************************************
   2  * item.c: input_item management
   3  *****************************************************************************
   4  * Copyright (C) 1998-2004 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 #include <vlc/vlc.h>
  25 #include <vlc/input.h>
  26 #include "vlc_playlist.h"
  27 #include "vlc_interface.h"
  28
  29 static void GuessType( input_item_t *p_item );
  30
  31 /**
  32  * Get a info item from a given category in a given input item.
  33  *
  34  * \param p_i The input item to get info from
  35  * \param psz_cat String representing the category for the info
  36  * \param psz_name String representing the name of the desired info
  37  * \return A pointer to the string with the given info if found, or an
  38  *         empty string otherwise. The caller should free the returned
  39  *         pointer.
  40  */
  41 char *input_ItemGetInfo( input_item_t *p_i,
  42                               const char *psz_cat,
  43                               const char *psz_name )
  44 {
  45     int i,j;
  46
  47     vlc_mutex_lock( &p_i->lock );
  48
  49     for( i = 0 ; i< p_i->i_categories  ; i++ )
  50     {
  51         info_category_t *p_cat = p_i->pp_categories[i];
  52
  53         if( !psz_cat || strcmp( p_cat->psz_name, psz_cat ) )
  54             continue;
  55
  56         for( j = 0; j < p_cat->i_infos ; j++ )
  57         {
  58             if( !strcmp( p_cat->pp_infos[j]->psz_name, psz_name ) )
  59             {
  60                 char *psz_ret = strdup( p_cat->pp_infos[j]->psz_value );
  61                 vlc_mutex_unlock( &p_i->lock );
  62                 return psz_ret;
  63             }
  64         }
  65     }
  66     vlc_mutex_unlock( &p_i->lock );
  67     return strdup( "" );
  68 }
  69
  70 static void input_ItemDestroy ( gc_object_t *p_this )
  71 {
  72     vlc_object_t *p_obj = (vlc_object_t *)p_this->p_destructor_arg;
  73     input_item_t *p_input = (input_item_t *) p_this;
  74     int i;
  75
  76     playlist_t *p_playlist = pl_Yield( p_obj );
  77     input_ItemClean( p_input );
  78
  79     ARRAY_BSEARCH( p_playlist->input_items,->i_id, int, p_input->i_id, i);
  80     if( i != -1 )
  81         ARRAY_REMOVE( p_playlist->input_items, i);
  82
  83     pl_Release( p_obj );
  84     free( p_input );
  85 }
  86
  87 void input_ItemAddOption( input_item_t *p_input,
  88                           const char *psz_option )
  89 {
  90     if( !psz_option ) return;
  91     vlc_mutex_lock( &p_input->lock );
  92     INSERT_ELEM( p_input->ppsz_options, p_input->i_options,
  93                  p_input->i_options, strdup( psz_option ) );
  94     vlc_mutex_unlock( &p_input->lock );
  95 }
  96
  97 void input_ItemAddOptionNoDup( input_item_t *p_input,
  98                                const char *psz_option )
  99 {
 100     int i;
 101     if( !psz_option ) return ;
 102     vlc_mutex_lock( &p_input->lock );
 103     for( i = 0 ; i< p_input->i_options; i++ )
 104     {
 105         if( !strcmp( p_input->ppsz_options[i], psz_option ) )
 106         {
 107             vlc_mutex_unlock(& p_input->lock );
 108             return;
 109         }
 110     }
 111     TAB_APPEND( p_input->i_options, p_input->ppsz_options, strdup( psz_option));    vlc_mutex_unlock( &p_input->lock );
 112 }
 113
 114
 115 int input_ItemAddInfo( input_item_t *p_i,
 116                             const char *psz_cat,
 117                             const char *psz_name,
 118                             const char *psz_format, ... )
 119 {
 120     va_list args;
 121     int i;
 122     info_t *p_info = NULL;
 123     info_category_t *p_cat = NULL ;
 124
 125     vlc_mutex_lock( &p_i->lock );
 126
 127     for( i = 0 ; i < p_i->i_categories ; i ++ )
 128     {
 129         if( !strcmp( p_i->pp_categories[i]->psz_name, psz_cat ) )
 130         {
 131             p_cat = p_i->pp_categories[i];
 132             break;
 133         }
 134     }
 135     if( !p_cat )
 136     {
 137         if( !(p_cat = (info_category_t *)malloc( sizeof(info_category_t) )) )
 138         {
 139             vlc_mutex_unlock( &p_i->lock );
 140             return VLC_EGENERIC;
 141         }
 142         p_cat->psz_name = strdup( psz_cat );
 143         p_cat->i_infos = 0;
 144         p_cat->pp_infos = 0;
 145         INSERT_ELEM( p_i->pp_categories, p_i->i_categories, p_i->i_categories,
 146                      p_cat );
 147     }
 148
 149     for( i = 0; i< p_cat->i_infos; i++ )
 150     {
 151         if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 152         {
 153             p_info = p_cat->pp_infos[i];
 154             break;
 155         }
 156     }
 157
 158     if( !p_info )
 159     {
 160         if( ( p_info = (info_t *)malloc( sizeof( info_t ) ) ) == NULL )
 161         {
 162             vlc_mutex_unlock( &p_i->lock );
 163             return VLC_EGENERIC;
 164         }
 165         INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos, p_cat->i_infos, p_info );
 166         p_info->psz_name = strdup( psz_name );
 167     }
 168     else
 169     {
 170         if( p_info->psz_value ) free( p_info->psz_value );
 171     }
 172
 173     va_start( args, psz_format );
 174     vasprintf( &p_info->psz_value, psz_format, args);
 175     va_end( args );
 176
 177     vlc_mutex_unlock( &p_i->lock );
 178
 179     return VLC_SUCCESS;
 180 }
 181
 182 input_item_t *input_ItemGetById( playlist_t *p_playlist, int i_id )
 183 {
 184     int i;
 185     ARRAY_BSEARCH( p_playlist->input_items, ->i_id, int, i_id, i);
 186     if( i != -1 )
 187         return ARRAY_VAL( p_playlist->input_items, i);
 188     return NULL;
 189 }
 190
 191 input_item_t *__input_ItemNewExt( vlc_object_t *p_obj, const char *psz_uri,
 192                                   const char *psz_name, int i_options,
 193                                   const char **ppsz_options, int i_duration )
 194 {
 195     return input_ItemNewWithType( p_obj, psz_uri, psz_name,
 196                                   i_options, ppsz_options,
 197                                   i_duration, ITEM_TYPE_UNKNOWN );
 198 }
 199
 200
 201 input_item_t *input_ItemNewWithType( vlc_object_t *p_obj, const char *psz_uri,
 202                                 const char *psz_name, int i_options,
 203                                 const char **ppsz_options, int i_duration,
 204                                 int i_type )
 205 {
 206     playlist_t *p_playlist = pl_Yield( p_obj );
 207     DECMALLOC_NULL( p_input, input_item_t );
 208
 209     input_ItemInit( p_obj, p_input );
 210     vlc_gc_init( p_input, input_ItemDestroy, (void *)p_obj );
 211
 212     PL_LOCK;
 213     p_input->i_id = ++p_playlist->i_last_input_id;
 214     ARRAY_APPEND( p_playlist->input_items, p_input );
 215     PL_UNLOCK;
 216     pl_Release( p_obj );
 217
 218     p_input->b_fixed_name = VLC_FALSE;
 219
 220     if( psz_uri )
 221         p_input->psz_uri = strdup( psz_uri );
 222     else
 223         p_input->psz_uri = NULL;
 224
 225     p_input->i_type = i_type;
 226     p_input->b_prefers_tree = VLC_FALSE;
 227
 228     if( p_input->i_type == ITEM_TYPE_UNKNOWN )
 229         GuessType( p_input );
 230
 231     if( psz_name != NULL )
 232         p_input->psz_name = strdup( psz_name );
 233     else if( p_input->i_type == ITEM_TYPE_AFILE
 234              || p_input->i_type == ITEM_TYPE_VFILE )
 235     {
 236         char *psz_filename = strrchr( p_input->psz_uri, DIR_SEP_CHAR );
 237         if( psz_filename && *psz_filename == DIR_SEP_CHAR )
 238             psz_filename++;
 239         p_input->psz_name = strdup( psz_filename && *psz_filename
 240                                     ? psz_filename : p_input->psz_uri );
 241     }
 242     else
 243         p_input->psz_name = strdup( p_input->psz_uri );
 244
 245     p_input->i_duration = i_duration;
 246     p_input->ppsz_options = NULL;
 247
 248     for( p_input->i_options = 0; p_input->i_options < i_options;
 249          p_input->i_options++ )
 250     {
 251         if( !p_input->i_options )
 252         {
 253             p_input->ppsz_options = malloc( i_options * sizeof(char *) );
 254             if( !p_input->ppsz_options ) break;
 255         }
 256         p_input->ppsz_options[p_input->i_options] =
 257                     strdup( ppsz_options[p_input->i_options] );
 258     }
 259     return p_input;
 260 }
 261
 262 /* Guess the type of the item using the beginning of the mrl */
 263 static void GuessType( input_item_t *p_item)
 264 {
 265     int i;
 266     static struct { const char *psz_search; int i_type; }  types_array[] =
 267     {
 268         { "http", ITEM_TYPE_NET },
 269         { "dvd", ITEM_TYPE_DISC },
 270         { "cdda", ITEM_TYPE_CDDA },
 271         { "mms", ITEM_TYPE_NET },
 272         { "rtsp", ITEM_TYPE_NET },
 273         { "udp", ITEM_TYPE_NET },
 274         { "rtp", ITEM_TYPE_NET },
 275         { "vcd", ITEM_TYPE_DISC },
 276         { "v4l", ITEM_TYPE_CARD },
 277         { "dshow", ITEM_TYPE_CARD },
 278         { "pvr", ITEM_TYPE_CARD },
 279         { "dvb", ITEM_TYPE_CARD },
 280         { "qpsk", ITEM_TYPE_CARD },
 281         { "sdp", ITEM_TYPE_NET },
 282         { NULL, 0 }
 283     };
 284
 285 #if 0 /* Unused */
 286     static struct { char *psz_search; int i_type; } exts_array[] =
 287     {
 288         { "mp3", ITEM_TYPE_AFILE },
 289         { NULL, 0 }
 290     };
 291 #endif
 292
 293     for( i = 0; types_array[i].psz_search != NULL; i++ )
 294     {
 295         if( !strncmp( p_item->psz_uri, types_array[i].psz_search,
 296                       strlen( types_array[i].psz_search ) ) )
 297         {
 298             p_item->i_type = types_array[i].i_type;
 299             return;
 300         }
 301     }
 302     p_item->i_type = ITEM_TYPE_VFILE;
 303 }