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