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