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     utf8_fprintf( stderr, "Destroying %s\n", p_input->psz_name );
  80     vlc_input_item_Clean( p_input );
  81
  82     if( p_playlist )
  83     {
  84 #if 0
  85         i_bottom = 0; i_top = p_playlist->i_input_items - 1;
  86         i = i_top / 2;
  87         while( p_playlist->pp_input_items[i]->i_id != p_input->i_id &&
  88                i_top > i_bottom )
  89         {
  90             if( p_playlist->pp_input_items[i]->i_id < p_input->i_id )
  91                 i_bottom = i + 1;
  92             else
  93                 i_top = i -1;
  94
  95             i = i_bottom + ( i_top - i_bottom ) / 2;
  96
  97         }
  98         if( p_playlist->pp_input_items[i]->i_id == p_input->i_id )
  99         {
 100             REMOVE_ELEM( p_playlist->pp_input_items,
 101                          p_playlist->i_input_items, i );
 102         }
 103 #endif
 104         for( i = 0 ; i< p_playlist->i_input_items ; i++ )
 105         {
 106             if( p_playlist->pp_input_items[i]->i_id == p_input->i_id )
 107             {
 108                 REMOVE_ELEM( p_playlist->pp_input_items,
 109                              p_playlist->i_input_items, i );
 110                 break;
 111             }
 112         }
 113         vlc_object_release( p_playlist );
 114     }
 115     free( p_input );
 116 }
 117
 118 int vlc_input_item_AddInfo( input_item_t *p_i,
 119                             const char *psz_cat,
 120                             const char *psz_name,
 121                             const char *psz_format, ... )
 122 {
 123     va_list args;
 124     int i;
 125     info_t *p_info = NULL;
 126     info_category_t *p_cat = NULL ;
 127
 128     vlc_mutex_lock( &p_i->lock );
 129
 130     for( i = 0 ; i < p_i->i_categories ; i ++ )
 131     {
 132         if( !strcmp( p_i->pp_categories[i]->psz_name, psz_cat ) )
 133         {
 134             p_cat = p_i->pp_categories[i];
 135             break;
 136         }
 137     }
 138     if( !p_cat )
 139     {
 140         if( !(p_cat = (info_category_t *)malloc( sizeof(info_category_t) )) )
 141         {
 142             vlc_mutex_unlock( &p_i->lock );
 143             return VLC_EGENERIC;
 144         }
 145         p_cat->psz_name = strdup( psz_cat );
 146         p_cat->i_infos = 0;
 147         p_cat->pp_infos = 0;
 148         INSERT_ELEM( p_i->pp_categories, p_i->i_categories, p_i->i_categories,
 149                      p_cat );
 150     }
 151
 152     for( i = 0; i< p_cat->i_infos; i++ )
 153     {
 154         if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 155         {
 156             p_info = p_cat->pp_infos[i];
 157             break;
 158         }
 159     }
 160
 161     if( !p_info )
 162     {
 163         if( ( p_info = (info_t *)malloc( sizeof( info_t ) ) ) == NULL )
 164         {
 165             vlc_mutex_unlock( &p_i->lock );
 166             return VLC_EGENERIC;
 167         }
 168         INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos, p_cat->i_infos, p_info );
 169         p_info->psz_name = strdup( psz_name );
 170     }
 171     else
 172     {
 173         if( p_info->psz_value ) free( p_info->psz_value );
 174     }
 175
 176     va_start( args, psz_format );
 177     vasprintf( &p_info->psz_value, psz_format, args);
 178     va_end( args );
 179
 180     vlc_mutex_unlock( &p_i->lock );
 181
 182     return VLC_SUCCESS;
 183 }
 184
 185 void vlc_input_item_AddOption( input_item_t *p_input,
 186                               const char *psz_option )
 187 {
 188     if( !psz_option ) return;
 189     vlc_mutex_lock( &p_input->lock );
 190     INSERT_ELEM( p_input->ppsz_options, p_input->i_options,
 191                  p_input->i_options, strdup( psz_option ) );
 192     vlc_mutex_unlock( &p_input->lock );
 193 };
 194
 195
 196 input_item_t *input_ItemGetById( playlist_t *p_playlist, int i_id )
 197 {
 198     int i, i_top, i_bottom;
 199     i_bottom = 0; i_top = p_playlist->i_input_items -1;
 200     i = i_top  /2 ;
 201     while( p_playlist->pp_input_items[i]->i_id != i_id &&
 202            i_top > i_bottom )
 203     {
 204         if( p_playlist->pp_input_items[i]->i_id < i_id )
 205             i_bottom = i + 1;
 206         else
 207             i_top = i - 1;
 208         i = i_bottom + ( i_top - i_bottom ) / 2;
 209     }
 210     if( p_playlist->pp_input_items[i]->i_id == i_id )
 211     {
 212         return p_playlist->pp_input_items[i];
 213     }
 214     return NULL;
 215 }
 216
 217 input_item_t *__input_ItemNewExt( vlc_object_t *p_obj, const char *psz_uri,
 218                                   const char *psz_name, int i_options,
 219                                   const char **ppsz_options, int i_duration )
 220 {
 221     return input_ItemNewWithType( p_obj, psz_uri, psz_name,
 222                                   i_options, ppsz_options,
 223                                   i_duration, ITEM_TYPE_UNKNOWN );
 224 }
 225
 226
 227 input_item_t *input_ItemNewWithType( vlc_object_t *p_obj, const char *psz_uri,
 228                                 const char *psz_name, int i_options,
 229                                 const char **ppsz_options, int i_duration,
 230                                 int i_type )
 231 {
 232     /* FIXME DON'T SEARCH PLAYLIST */
 233     /* FIXME SHOULD LOCK */
 234     input_item_t *p_input = (input_item_t *)malloc( sizeof( input_item_t ) );
 235     playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_obj,
 236                                 VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 237
 238     vlc_input_item_Init( p_obj, p_input );
 239     vlc_gc_init( p_input, vlc_input_item_Destroy, (void *)p_obj );
 240
 241     p_input->i_id = ++p_playlist->i_last_input_id;
 242
 243     INSERT_ELEM( p_playlist->pp_input_items, p_playlist->i_input_items,
 244                  p_playlist->i_input_items, p_input );
 245     vlc_object_release( p_playlist );
 246
 247     p_input->b_fixed_name = VLC_FALSE;
 248
 249     if( psz_uri )
 250         p_input->psz_uri = strdup( psz_uri );
 251     else
 252         p_input->psz_uri = NULL;
 253
 254     if( psz_name != NULL )
 255         p_input->psz_name = strdup( psz_name );
 256     else
 257         p_input->psz_name = strdup ( p_input->psz_uri );
 258
 259     p_input->i_type = i_type;
 260     p_input->b_prefers_tree = VLC_FALSE;
 261
 262     if( p_input->i_type == ITEM_TYPE_UNKNOWN )
 263         GuessType( p_input );
 264
 265     p_input->i_duration = i_duration;
 266     p_input->ppsz_options = NULL;
 267
 268     for( p_input->i_options = 0; p_input->i_options < i_options;
 269          p_input->i_options++ )
 270     {
 271         if( !p_input->i_options )
 272         {
 273             p_input->ppsz_options = malloc( i_options * sizeof(char *) );
 274             if( !p_input->ppsz_options ) break;
 275         }
 276         p_input->ppsz_options[p_input->i_options] =
 277                     strdup( ppsz_options[p_input->i_options] );
 278     }
 279     return p_input;
 280 }
 281
 282 /* Guess the type of the item using the beginning of the mrl */
 283 static void GuessType( input_item_t *p_item)
 284 {
 285     int i;
 286     static struct { char *psz_search; int i_type; }  types_array[] =
 287     {
 288         { "http", ITEM_TYPE_NET },
 289         { "dvd", ITEM_TYPE_DISC },
 290         { "cdda", ITEM_TYPE_CDDA },
 291         { "mms", ITEM_TYPE_NET },
 292         { "rtsp", ITEM_TYPE_NET },
 293         { "udp", ITEM_TYPE_NET },
 294         { "rtp", ITEM_TYPE_NET },
 295         { "vcd", ITEM_TYPE_DISC },
 296         { "v4l", ITEM_TYPE_CARD },
 297         { "dshow", ITEM_TYPE_CARD },
 298         { "pvr", ITEM_TYPE_CARD },
 299         { "dvb", ITEM_TYPE_CARD },
 300         { "qpsk", ITEM_TYPE_CARD },
 301         { "sdp", ITEM_TYPE_NET },
 302         { NULL, 0 }
 303     };
 304
 305 #if 0 /* Unused */
 306     static struct { char *psz_search; int i_type; } exts_array[] =
 307     {
 308         { "mp3", ITEM_TYPE_AFILE },
 309         { NULL, 0 }
 310     };
 311 #endif
 312
 313     for( i = 0; types_array[i].psz_search != NULL; i++ )
 314     {
 315         if( !strncmp( p_item->psz_uri, types_array[i].psz_search,
 316                       strlen( types_array[i].psz_search ) ) )
 317         {
 318             p_item->i_type = types_array[i].i_type;
 319             return;
 320         }
 321     }
 322     p_item->i_type = ITEM_TYPE_VFILE;
 323 }