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 #if 0
  84         i_bottom = 0; i_top = p_playlist->i_input_items - 1;
  85         i = i_top / 2;
  86         while( p_playlist->pp_input_items[i]->i_id != p_input->i_id &&
  87                i_top > i_bottom )
  88         {
  89             if( p_playlist->pp_input_items[i]->i_id < p_input->i_id )
  90                 i_bottom = i + 1;
  91             else
  92                 i_top = i -1;
  93
  94             i = i_bottom + ( i_top - i_bottom ) / 2;
  95
  96         }
  97         if( p_playlist->pp_input_items[i]->i_id == p_input->i_id )
  98         {
  99             REMOVE_ELEM( p_playlist->pp_input_items,
 100                          p_playlist->i_input_items, i );
 101         }
 102 #endif
 103         for( i = 0 ; i< p_playlist->i_input_items ; i++ )
 104         {
 105             if( p_playlist->pp_input_items[i]->i_id == p_input->i_id )
 106             {
 107                 REMOVE_ELEM( p_playlist->pp_input_items,
 108                              p_playlist->i_input_items, i );
 109                 break;
 110             }
 111         }
 112         vlc_object_release( p_playlist );
 113     }
 114     free( p_input );
 115 }
 116
 117 int vlc_input_item_AddInfo( input_item_t *p_i,
 118                             const char *psz_cat,
 119                             const char *psz_name,
 120                             const char *psz_format, ... )
 121 {
 122     va_list args;
 123     int i;
 124     info_t *p_info = NULL;
 125     info_category_t *p_cat = NULL ;
 126
 127     vlc_mutex_lock( &p_i->lock );
 128
 129     for( i = 0 ; i < p_i->i_categories ; i ++ )
 130     {
 131         if( !strcmp( p_i->pp_categories[i]->psz_name, psz_cat ) )
 132         {
 133             p_cat = p_i->pp_categories[i];
 134             break;
 135         }
 136     }
 137     if( !p_cat )
 138     {
 139         if( !(p_cat = (info_category_t *)malloc( sizeof(info_category_t) )) )
 140         {
 141             vlc_mutex_unlock( &p_i->lock );
 142             return VLC_EGENERIC;
 143         }
 144         p_cat->psz_name = strdup( psz_cat );
 145         p_cat->i_infos = 0;
 146         p_cat->pp_infos = 0;
 147         INSERT_ELEM( p_i->pp_categories, p_i->i_categories, p_i->i_categories,
 148                      p_cat );
 149     }
 150
 151     for( i = 0; i< p_cat->i_infos; i++ )
 152     {
 153         if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 154         {
 155             p_info = p_cat->pp_infos[i];
 156             break;
 157         }
 158     }
 159
 160     if( !p_info )
 161     {
 162         if( ( p_info = (info_t *)malloc( sizeof( info_t ) ) ) == NULL )
 163         {
 164             vlc_mutex_unlock( &p_i->lock );
 165             return VLC_EGENERIC;
 166         }
 167         INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos, p_cat->i_infos, p_info );
 168         p_info->psz_name = strdup( psz_name );
 169     }
 170     else
 171     {
 172         if( p_info->psz_value ) free( p_info->psz_value );
 173     }
 174
 175     va_start( args, psz_format );
 176     vasprintf( &p_info->psz_value, psz_format, args);
 177     va_end( args );
 178
 179     vlc_mutex_unlock( &p_i->lock );
 180
 181     return VLC_SUCCESS;
 182 }
 183
 184 void vlc_input_item_AddOption( input_item_t *p_input,
 185                               const char *psz_option )
 186 {
 187     if( !psz_option ) return;
 188     vlc_mutex_lock( &p_input->lock );
 189     INSERT_ELEM( p_input->ppsz_options, p_input->i_options,
 190                  p_input->i_options, strdup( psz_option ) );
 191     vlc_mutex_unlock( &p_input->lock );
 192 };
 193
 194
 195 input_item_t *input_ItemGetById( playlist_t *p_playlist, int i_id )
 196 {
 197     int i, i_top, i_bottom;
 198     i_bottom = 0; i_top = p_playlist->i_input_items -1;
 199     i = i_top  /2 ;
 200     while( p_playlist->pp_input_items[i]->i_id != i_id &&
 201            i_top > i_bottom )
 202     {
 203         if( p_playlist->pp_input_items[i]->i_id < i_id )
 204             i_bottom = i + 1;
 205         else
 206             i_top = i - 1;
 207         i = i_bottom + ( i_top - i_bottom ) / 2;
 208     }
 209     if( p_playlist->pp_input_items[i]->i_id == i_id )
 210     {
 211         return p_playlist->pp_input_items[i];
 212     }
 213     return NULL;
 214 }
 215
 216 input_item_t *__input_ItemNewExt( vlc_object_t *p_obj, const char *psz_uri,
 217                                   const char *psz_name, int i_options,
 218                                   const char **ppsz_options, int i_duration )
 219 {
 220     return input_ItemNewWithType( p_obj, psz_uri, psz_name,
 221                                   i_options, ppsz_options,
 222                                   i_duration, ITEM_TYPE_UNKNOWN );
 223 }
 224
 225
 226 input_item_t *input_ItemNewWithType( vlc_object_t *p_obj, const char *psz_uri,
 227                                 const char *psz_name, int i_options,
 228                                 const char **ppsz_options, int i_duration,
 229                                 int i_type )
 230 {
 231     /* FIXME DON'T SEARCH PLAYLIST */
 232     /* FIXME SHOULD LOCK */
 233     input_item_t *p_input = (input_item_t *)malloc( sizeof( input_item_t ) );
 234     playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_obj,
 235                                 VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 236
 237     vlc_input_item_Init( p_obj, p_input );
 238     vlc_gc_init( p_input, vlc_input_item_Destroy, (void *)p_obj );
 239
 240     p_input->i_id = ++p_playlist->i_last_input_id;
 241
 242     INSERT_ELEM( p_playlist->pp_input_items, p_playlist->i_input_items,
 243                  p_playlist->i_input_items, p_input );
 244     vlc_object_release( p_playlist );
 245
 246     p_input->b_fixed_name = VLC_FALSE;
 247
 248     if( psz_uri )
 249         p_input->psz_uri = strdup( psz_uri );
 250     else
 251         p_input->psz_uri = NULL;
 252
 253     if( psz_name != NULL )
 254         p_input->psz_name = strdup( psz_name );
 255     else
 256         p_input->psz_name = strdup ( p_input->psz_uri );
 257
 258     p_input->i_type = i_type;
 259
 260     if( p_input->i_type == ITEM_TYPE_UNKNOWN )
 261         GuessType( p_input );
 262
 263     p_input->i_duration = i_duration;
 264     p_input->ppsz_options = NULL;
 265
 266     for( p_input->i_options = 0; p_input->i_options < i_options;
 267          p_input->i_options++ )
 268     {
 269         if( !p_input->i_options )
 270         {
 271             p_input->ppsz_options = malloc( i_options * sizeof(char *) );
 272             if( !p_input->ppsz_options ) break;
 273         }
 274         p_input->ppsz_options[p_input->i_options] =
 275                     strdup( ppsz_options[p_input->i_options] );
 276     }
 277     return p_input;
 278 }
 279
 280 /* Guess the type of the item using the beginning of the mrl */
 281 static void GuessType( input_item_t *p_item)
 282 {
 283     int i;
 284     static struct { char *psz_search; int i_type; }  types_array[] =
 285     {
 286         { "http", ITEM_TYPE_NET },
 287         { "dvd", ITEM_TYPE_DISC },
 288         { "cdda", ITEM_TYPE_CDDA },
 289         { "mms", ITEM_TYPE_NET },
 290         { "rtsp", ITEM_TYPE_NET },
 291         { "udp", ITEM_TYPE_NET },
 292         { "rtp", ITEM_TYPE_NET },
 293         { "vcd", ITEM_TYPE_DISC },
 294         { "v4l", ITEM_TYPE_CARD },
 295         { "dshow", ITEM_TYPE_CARD },
 296         { "pvr", ITEM_TYPE_CARD },
 297         { "dvb", ITEM_TYPE_CARD },
 298         { "qpsk", ITEM_TYPE_CARD },
 299         { "sdp", ITEM_TYPE_NET },
 300         { NULL, 0 }
 301     };
 302
 303 #if 0 /* Unused */
 304     static struct { char *psz_search; int i_type; } exts_array[] =
 305     {
 306         { "mp3", ITEM_TYPE_AFILE },
 307         { NULL, 0 }
 308     };
 309 #endif
 310
 311     for( i = 0; types_array[i].psz_search != NULL; i++ )
 312     {
 313         if( !strncmp( p_item->psz_uri, types_array[i].psz_search,
 314                       strlen( types_array[i].psz_search ) ) )
 315         {
 316             p_item->i_type = types_array[i].i_type;
 317             return;
 318         }
 319     }
 320     p_item->i_type = ITEM_TYPE_VFILE;
 321 }