git.sesse.net Git - vlc/blob - src/input/control.c

   1 /*****************************************************************************
   2  * control.c
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 VideoLAN
   5  * $Id: stream.c 7041 2004-03-11 16:48:27Z gbazin $
   6  *
   7  * Authors: Gildas Bazin <gbazin@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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdlib.h>
  25 #include <vlc/vlc.h>
  26 #include <vlc/input.h>
  27
  28 #include "ninput.h"
  29
  30 /****************************************************************************
  31  * input_Control
  32  ****************************************************************************/
  33 /**
  34  * Control function for inputs.
  35  * \param p_input input handle
  36  * \param i_query query type
  37  * \return VLC_SUCESS if ok
  38  */
  39 int input_Control( input_thread_t *p_input, int i_query, ...  )
  40 {
  41     va_list args;
  42     int     i_result;
  43
  44     va_start( args, i_query );
  45     i_result = input_vaControl( p_input, i_query, args );
  46     va_end( args );
  47
  48     return i_result;
  49 }
  50
  51 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  52 {
  53     int     i_ret;
  54     seekpoint_t *p_bkmk, ***ppp_bkmk;
  55     int i_bkmk, *pi_bkmk;
  56     vlc_value_t val, text;
  57
  58     vlc_mutex_lock( &p_input->stream.stream_lock );
  59     switch( i_query )
  60     {
  61         case INPUT_ADD_BOOKMARK:
  62             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
  63             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
  64             if( !p_bkmk->psz_name )
  65             {
  66                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
  67                            p_input->i_bookmarks );
  68             }
  69             TAB_APPEND( p_input->i_bookmarks, p_input->pp_bookmarks, p_bkmk );
  70
  71             /* Reflect the changes on the object var */
  72             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
  73             {
  74                 int i;
  75                 for( i = 0; i < p_input->i_bookmarks; i++ )
  76                 {
  77                     val.i_int = i;
  78                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
  79                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
  80                                 &val, &text );
  81                 }
  82             }
  83
  84             i_ret = VLC_SUCCESS;
  85             break;
  86
  87         case INPUT_DEL_BOOKMARK:
  88             i_bkmk = (int)va_arg( args, int );
  89             if( i_bkmk < p_input->i_bookmarks )
  90             {
  91                 int i;
  92                 p_bkmk = p_input->pp_bookmarks[i_bkmk];
  93                 TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
  94                             p_bkmk );
  95                 vlc_seekpoint_Delete( p_bkmk );
  96
  97                 /* Reflect the changes on the object var */
  98                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
  99                 for( i = 0; i < p_input->i_bookmarks; i++ )
 100                 {
 101                     val.i_int = i;
 102                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
 103                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 104                                 &val, &text );
 105                 }
 106                 i_ret = VLC_SUCCESS;
 107             }
 108             else i_ret = VLC_EGENERIC;
 109             break;
 110
 111         case INPUT_GET_BOOKMARKS:
 112             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 113             pi_bkmk = (int *)va_arg( args, int * );
 114             if( p_input->i_bookmarks )
 115             {
 116                 int i;
 117
 118                 *pi_bkmk = p_input->i_bookmarks;
 119                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 120                               p_input->i_bookmarks );
 121                 for( i = 0; i < p_input->i_bookmarks; i++ )
 122                 {
 123                     (*ppp_bkmk)[i] =
 124                         vlc_seekpoint_Duplicate(p_input->pp_bookmarks[i]);
 125                 }
 126                 i_ret = VLC_SUCCESS;
 127             }
 128             else
 129             {
 130                 *ppp_bkmk = NULL;
 131                 *pi_bkmk = 0;
 132                 i_ret = VLC_EGENERIC;
 133             }
 134             break;
 135
 136         case INPUT_CLEAR_BOOKMARKS:
 137             if( p_input->i_bookmarks )
 138             {
 139                 int i;
 140
 141                 for( i = p_input->i_bookmarks - 1; i >= 0; i-- )
 142                 {
 143                     p_bkmk = p_input->pp_bookmarks[i];
 144                     TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
 145                                 p_bkmk );
 146                     vlc_seekpoint_Delete( p_bkmk );
 147                 }
 148                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 149             }
 150             i_ret = VLC_SUCCESS;
 151             break;
 152
 153         case INPUT_SET_BOOKMARK:
 154             i_bkmk = (int)va_arg( args, int );
 155             if( i_bkmk >= 0 && i_bkmk < p_input->i_bookmarks )
 156             {
 157                 vlc_value_t pos;
 158                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 159                 if( p_input->pp_bookmarks[i_bkmk]->i_byte_offset ||
 160                     ( !p_input->pp_bookmarks[i_bkmk]->i_byte_offset &&
 161                       !p_input->pp_bookmarks[i_bkmk]->i_time_offset ) )
 162                 {
 163                     pos.f_float = p_input->pp_bookmarks[i_bkmk]->i_byte_offset/
 164                         (double)p_input->stream.p_selected_area->i_size;
 165                     i_ret = var_Set( p_input, "position", pos );
 166                 }
 167                 else if( p_input->pp_bookmarks[i_bkmk]->i_time_offset )
 168                 {
 169                     pos.i_time = p_input->pp_bookmarks[i_bkmk]->i_time_offset;
 170                     i_ret = var_Set( p_input, "time", pos );
 171                 }
 172                 vlc_mutex_lock( &p_input->stream.stream_lock );
 173             }
 174             else
 175             {
 176                 i_ret = VLC_EGENERIC;
 177             }
 178             break;
 179
 180         default:
 181             msg_Err( p_input, "unknown query in input_vaControl" );
 182             i_ret = VLC_EGENERIC;
 183             break;
 184     }
 185     vlc_mutex_unlock( &p_input->stream.stream_lock );
 186
 187     return i_ret;
 188 }