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 #include "../../modules/demux/util/sub.h"
  30
  31 struct input_thread_sys_t
  32 {
  33     /* subtitles */
  34     int              i_sub;
  35     subtitle_demux_t **sub;
  36     int64_t          i_stop_time;
  37 };
  38
  39 /****************************************************************************
  40  * input_Control
  41  ****************************************************************************/
  42 /**
  43  * Control function for inputs.
  44  * \param p_input input handle
  45  * \param i_query query type
  46  * \return VLC_SUCESS if ok
  47  */
  48 int input_Control( input_thread_t *p_input, int i_query, ...  )
  49 {
  50     va_list args;
  51     int     i_result;
  52
  53     va_start( args, i_query );
  54     i_result = input_vaControl( p_input, i_query, args );
  55     va_end( args );
  56
  57     return i_result;
  58 }
  59
  60 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  61 {
  62     int     i_ret;
  63     seekpoint_t *p_bkmk, ***ppp_bkmk;
  64     int i_bkmk, *pi_bkmk;
  65     int i, *pi;
  66     vlc_value_t val, text;
  67
  68     vlc_mutex_lock( &p_input->stream.stream_lock );
  69     switch( i_query )
  70     {
  71         case INPUT_ADD_BOOKMARK:
  72             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
  73             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
  74             if( !p_bkmk->psz_name )
  75             {
  76                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
  77                            p_input->i_bookmarks );
  78             }
  79             TAB_APPEND( p_input->i_bookmarks, p_input->pp_bookmarks, p_bkmk );
  80
  81             /* Reflect the changes on the object var */
  82             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
  83             {
  84                 int i;
  85                 for( i = 0; i < p_input->i_bookmarks; i++ )
  86                 {
  87                     val.i_int = i;
  88                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
  89                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
  90                                 &val, &text );
  91                 }
  92             }
  93
  94             i_ret = VLC_SUCCESS;
  95             break;
  96
  97         case INPUT_DEL_BOOKMARK:
  98             i_bkmk = (int)va_arg( args, int );
  99             if( i_bkmk < p_input->i_bookmarks )
 100             {
 101                 int i;
 102                 p_bkmk = p_input->pp_bookmarks[i_bkmk];
 103                 TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
 104                             p_bkmk );
 105                 vlc_seekpoint_Delete( p_bkmk );
 106
 107                 /* Reflect the changes on the object var */
 108                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 109                 for( i = 0; i < p_input->i_bookmarks; i++ )
 110                 {
 111                     val.i_int = i;
 112                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
 113                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 114                                 &val, &text );
 115                 }
 116                 i_ret = VLC_SUCCESS;
 117             }
 118             else i_ret = VLC_EGENERIC;
 119             break;
 120
 121         case INPUT_GET_BOOKMARKS:
 122             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 123             pi_bkmk = (int *)va_arg( args, int * );
 124             if( p_input->i_bookmarks )
 125             {
 126                 int i;
 127
 128                 *pi_bkmk = p_input->i_bookmarks;
 129                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 130                               p_input->i_bookmarks );
 131                 for( i = 0; i < p_input->i_bookmarks; i++ )
 132                 {
 133                     (*ppp_bkmk)[i] =
 134                         vlc_seekpoint_Duplicate(p_input->pp_bookmarks[i]);
 135                 }
 136                 i_ret = VLC_SUCCESS;
 137             }
 138             else
 139             {
 140                 *ppp_bkmk = NULL;
 141                 *pi_bkmk = 0;
 142                 i_ret = VLC_EGENERIC;
 143             }
 144             break;
 145
 146         case INPUT_CLEAR_BOOKMARKS:
 147             if( p_input->i_bookmarks )
 148             {
 149                 int i;
 150
 151                 for( i = p_input->i_bookmarks - 1; i >= 0; i-- )
 152                 {
 153                     p_bkmk = p_input->pp_bookmarks[i];
 154                     TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
 155                                 p_bkmk );
 156                     vlc_seekpoint_Delete( p_bkmk );
 157                 }
 158                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 159             }
 160             i_ret = VLC_SUCCESS;
 161             break;
 162
 163         case INPUT_SET_BOOKMARK:
 164             i_bkmk = (int)va_arg( args, int );
 165             if( i_bkmk >= 0 && i_bkmk < p_input->i_bookmarks )
 166             {
 167                 vlc_value_t pos;
 168                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 169                 if( p_input->pp_bookmarks[i_bkmk]->i_byte_offset ||
 170                     ( !p_input->pp_bookmarks[i_bkmk]->i_byte_offset &&
 171                       !p_input->pp_bookmarks[i_bkmk]->i_time_offset ) )
 172                 {
 173                     pos.f_float = p_input->pp_bookmarks[i_bkmk]->i_byte_offset/
 174                         (double)p_input->stream.p_selected_area->i_size;
 175                     i_ret = var_Set( p_input, "position", pos );
 176                 }
 177                 else if( p_input->pp_bookmarks[i_bkmk]->i_time_offset )
 178                 {
 179                     pos.i_time = p_input->pp_bookmarks[i_bkmk]->i_time_offset;
 180                     i_ret = var_Set( p_input, "time", pos );
 181                 }
 182                 vlc_mutex_lock( &p_input->stream.stream_lock );
 183             }
 184             else
 185             {
 186                 i_ret = VLC_EGENERIC;
 187             }
 188             break;
 189
 190         case INPUT_GET_SUBDELAY:
 191             pi = (int*)va_arg( args, int *);
 192             /* We work on the first subtitle */
 193             if( p_input->p_sys != NULL )
 194             {
 195                 if( p_input->p_sys->i_sub > 0 )
 196                 {
 197                     i_ret = var_Get( (vlc_object_t *)p_input->p_sys->sub[0],
 198                                       "sub-delay", &val );
 199                     *pi = val.i_int;
 200                 }
 201                 else
 202                 {
 203                     msg_Dbg( p_input,"no subtitle track");
 204                     i_ret = VLC_EGENERIC;
 205                 }
 206             }
 207             else
 208             {
 209                 i_ret = VLC_EGENERIC;
 210             }
 211             break;
 212
 213         case INPUT_SET_SUBDELAY:
 214             i = (int)va_arg( args, int );
 215             /* We work on the first subtitle */
 216             if( p_input->p_sys )
 217             {
 218                 if( p_input->p_sys->i_sub > 0 )
 219                 {
 220                     val.i_int = i;
 221                     i_ret = var_Set( (vlc_object_t *)p_input->p_sys->sub[0],
 222                                       "sub-delay", val );
 223                 }
 224                 else
 225                 {
 226                     msg_Dbg( p_input,"no subtitle track");
 227                     i_ret = VLC_EGENERIC;
 228                 }
 229             }
 230             else
 231             {
 232                 i_ret = VLC_EGENERIC;
 233             }
 234             break;
 235
 236         default:
 237             msg_Err( p_input, "unknown query in input_vaControl" );
 238             i_ret = VLC_EGENERIC;
 239             break;
 240     }
 241     vlc_mutex_unlock( &p_input->stream.stream_lock );
 242
 243     return i_ret;
 244 }