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 *vlc_input_item_GetInfo( 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 vlc_input_item_Destroy ( gc_object_t *p_this )
  71 {
  72     vlc_object_t *p_obj = (vlc_object_t *)p_this->p_destructor_arg;
  73     int i;
  74     input_item_t *p_input = (input_item_t *) p_this;
  75
  76     playlist_t *p_playlist = (playlist_t *)vlc_object_find( p_obj,
  77                                           VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
  78
  79     vlc_input_item_Clean( p_input );
  80
  81     if( p_playlist )
  82     {
  83         for( i = 0 ; i< p_playlist->i_input_items ; i++ )
  84         {
  85             if( p_playlist->pp_input_items[i]->i_id == p_input->i_id )
  86             {
  87                 REMOVE_ELEM( p_playlist->pp_input_items,
  88                              p_playlist->i_input_items, i );
  89                 break;
  90             }
  91         }
  92         vlc_object_release( p_playlist );
  93     }
  94     free( p_input );
  95 }
  96
  97 int vlc_input_item_AddInfo( input_item_t *p_i,
  98                             const char *psz_cat,
  99                             const char *psz_name,
 100                             const char *psz_format, ... )
 101 {
 102     va_list args;
 103     int i;
 104     info_t *p_info = NULL;
 105     info_category_t *p_cat = NULL ;
 106
 107     vlc_mutex_lock( &p_i->lock );
 108
 109     for( i = 0 ; i < p_i->i_categories ; i ++ )
 110     {
 111         if( !strcmp( p_i->pp_categories[i]->psz_name, psz_cat ) )
 112         {
 113             p_cat = p_i->pp_categories[i];
 114             break;
 115         }
 116     }
 117     if( !p_cat )
 118     {
 119         if( !(p_cat = (info_category_t *)malloc( sizeof(info_category_t) )) )
 120         {
 121             vlc_mutex_unlock( &p_i->lock );
 122             return VLC_EGENERIC;
 123         }
 124         p_cat->psz_name = strdup( psz_cat );
 125         p_cat->i_infos = 0;
 126         p_cat->pp_infos = 0;
 127         INSERT_ELEM( p_i->pp_categories, p_i->i_categories, p_i->i_categories,
 128                      p_cat );
 129     }
 130
 131     for( i = 0; i< p_cat->i_infos; i++ )
 132     {
 133         if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 134         {
 135             p_info = p_cat->pp_infos[i];
 136             break;
 137         }
 138     }
 139
 140     if( !p_info )
 141     {
 142         if( ( p_info = (info_t *)malloc( sizeof( info_t ) ) ) == NULL )
 143         {
 144             vlc_mutex_unlock( &p_i->lock );
 145             return VLC_EGENERIC;
 146         }
 147         INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos, p_cat->i_infos, p_info );
 148         p_info->psz_name = strdup( psz_name );
 149     }
 150     else
 151     {
 152         if( p_info->psz_value ) free( p_info->psz_value );
 153     }
 154
 155     va_start( args, psz_format );
 156     vasprintf( &p_info->psz_value, psz_format, args);
 157     va_end( args );
 158
 159     vlc_mutex_unlock( &p_i->lock );
 160
 161     return VLC_SUCCESS;
 162 }
 163
 164 void vlc_input_item_AddOption( input_item_t *p_input,
 165                               const char *psz_option )
 166 {
 167     if( !psz_option ) return;
 168     vlc_mutex_lock( &p_input->lock );
 169     INSERT_ELEM( p_input->ppsz_options, p_input->i_options,
 170                  p_input->i_options, strdup( psz_option ) );
 171     vlc_mutex_unlock( &p_input->lock );
 172 };
 173
 174
 175 input_item_t *input_ItemGetById( playlist_t *p_playlist, int i_id )
 176 {
 177     int i, i_top, i_bottom;
 178     i_bottom = 0; i_top = p_playlist->i_input_items -1;
 179     i = i_top  /2 ;
 180     while( p_playlist->pp_input_items[i]->i_id != i_id &&
 181            i_top > i_bottom )
 182     {
 183         if( p_playlist->pp_input_items[i]->i_id < i_id )
 184             i_bottom = i + 1;
 185         else
 186             i_top = i - 1;
 187         i = i_bottom + ( i_top - i_bottom ) / 2;
 188     }
 189     if( p_playlist->pp_input_items[i]->i_id == i_id )
 190     {
 191         return p_playlist->pp_input_items[i];
 192     }
 193     return NULL;
 194 }
 195
 196 input_item_t *__input_ItemNewExt( vlc_object_t *p_obj, const char *psz_uri,
 197                                   const char *psz_name, int i_options,
 198                                   const char **ppsz_options, int i_duration )
 199 {
 200     return input_ItemNewWithType( p_obj, psz_uri, psz_name,
 201                                   i_options, ppsz_options,
 202                                   i_duration, ITEM_TYPE_UNKNOWN );
 203 }
 204
 205
 206 input_item_t *input_ItemNewWithType( vlc_object_t *p_obj, const char *psz_uri,
 207                                 const char *psz_name, int i_options,
 208                                 const char **ppsz_options, int i_duration,
 209                                 int i_type )
 210 {
 211     /* FIXME DON'T SEARCH PLAYLIST */
 212     /* FIXME SHOULD LOCK */
 213     input_item_t *p_input = (input_item_t *)malloc( sizeof( input_item_t ) );
 214     playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_obj,
 215                                 VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 216
 217     vlc_input_item_Init( p_obj, p_input );
 218     vlc_gc_init( p_input, vlc_input_item_Destroy, (void *)p_obj );
 219
 220     p_input->i_id = ++p_playlist->i_last_input_id;
 221
 222     INSERT_ELEM( p_playlist->pp_input_items, p_playlist->i_input_items,
 223                  p_playlist->i_input_items, p_input );
 224     vlc_object_release( p_playlist );
 225
 226     p_input->b_fixed_name = VLC_FALSE;
 227
 228     if( psz_uri )
 229         p_input->psz_uri = strdup( psz_uri );
 230     else
 231         p_input->psz_uri = NULL;
 232
 233     if( psz_name != NULL )
 234         p_input->psz_name = strdup( psz_name );
 235     else
 236         p_input->psz_name = strdup ( p_input->psz_uri );
 237
 238     p_input->i_type = i_type;
 239     p_input->b_prefers_tree = VLC_FALSE;
 240
 241     if( p_input->i_type == ITEM_TYPE_UNKNOWN )
 242         GuessType( p_input );
 243
 244     p_input->i_duration = i_duration;
 245     p_input->ppsz_options = NULL;
 246
 247     for( p_input->i_options = 0; p_input->i_options < i_options;
 248          p_input->i_options++ )
 249     {
 250         if( !p_input->i_options )
 251         {
 252             p_input->ppsz_options = malloc( i_options * sizeof(char *) );
 253             if( !p_input->ppsz_options ) break;
 254         }
 255         p_input->ppsz_options[p_input->i_options] =
 256                     strdup( ppsz_options[p_input->i_options] );
 257     }
 258     return p_input;
 259 }
 260
 261 /* Guess the type of the item using the beginning of the mrl */
 262 static void GuessType( input_item_t *p_item)
 263 {
 264     int i;
 265     static struct { char *psz_search; int i_type; }  types_array[] =
 266     {
 267         { "http", ITEM_TYPE_NET },
 268         { "dvd", ITEM_TYPE_DISC },
 269         { "cdda", ITEM_TYPE_CDDA },
 270         { "mms", ITEM_TYPE_NET },
 271         { "rtsp", ITEM_TYPE_NET },
 272         { "udp", ITEM_TYPE_NET },
 273         { "rtp", ITEM_TYPE_NET },
 274         { "vcd", ITEM_TYPE_DISC },
 275         { "v4l", ITEM_TYPE_CARD },
 276         { "dshow", ITEM_TYPE_CARD },
 277         { "pvr", ITEM_TYPE_CARD },
 278         { "dvb", ITEM_TYPE_CARD },
 279         { "qpsk", ITEM_TYPE_CARD },
 280         { "sdp", ITEM_TYPE_NET },
 281         { NULL, 0 }
 282     };
 283
 284 #if 0 /* Unused */
 285     static struct { char *psz_search; int i_type; } exts_array[] =
 286     {
 287         { "mp3", ITEM_TYPE_AFILE },
 288         { NULL, 0 }
 289     };
 290 #endif
 291
 292     for( i = 0; types_array[i].psz_search != NULL; i++ )
 293     {
 294         if( !strncmp( p_item->psz_uri, types_array[i].psz_search,
 295                       strlen( types_array[i].psz_search ) ) )
 296         {
 297             p_item->i_type = types_array[i].i_type;
 298             return;
 299         }
 300     }
 301     p_item->i_type = ITEM_TYPE_VFILE;
 302 }