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 "vlc_playlist.h"
  29
  30 #include "ninput.h"
  31 #include "../../modules/demux/util/sub.h"
  32
  33 struct input_thread_sys_t
  34 {
  35     /* subtitles */
  36     int              i_sub;
  37     subtitle_demux_t **sub;
  38     int64_t          i_stop_time;
  39 };
  40
  41 /****************************************************************************
  42  * input_Control
  43  ****************************************************************************/
  44 /**
  45  * Control function for inputs.
  46  * \param p_input input handle
  47  * \param i_query query type
  48  * \return VLC_SUCESS if ok
  49  */
  50 int input_Control( input_thread_t *p_input, int i_query, ...  )
  51 {
  52     va_list args;
  53     int     i_result;
  54
  55     va_start( args, i_query );
  56     i_result = input_vaControl( p_input, i_query, args );
  57     va_end( args );
  58
  59     return i_result;
  60 }
  61
  62 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  63 {
  64     int     i_ret;
  65     seekpoint_t *p_bkmk, ***ppp_bkmk;
  66     int i_bkmk, *pi_bkmk;
  67     int i, *pi;
  68     vlc_value_t val, text;
  69     char *psz_option, *psz_value;
  70
  71     vlc_mutex_lock( &p_input->stream.stream_lock );
  72     switch( i_query )
  73     {
  74         case INPUT_ADD_OPTION:
  75         {
  76             psz_option = (char *)va_arg( args, char * );
  77             psz_value = (char *)va_arg( args, char * );
  78             i_ret = VLC_EGENERIC;
  79
  80             vlc_mutex_lock( &p_input->p_item->lock );
  81             vlc_mutex_unlock( &p_input->p_item->lock );
  82
  83             i_ret = VLC_SUCCESS;
  84             break;
  85         }
  86
  87         case INPUT_SET_NAME:
  88         {
  89             char *psz_name = (char *)va_arg( args, char * );
  90             i_ret = VLC_EGENERIC;
  91             if( !psz_name ) break;
  92             vlc_mutex_lock( &p_input->p_item->lock );
  93             if( p_input->p_item->psz_name ) free( p_input->p_item->psz_name );
  94             p_input->p_item->psz_name = strdup( psz_name );
  95             vlc_mutex_unlock( &p_input->p_item->lock );
  96             i_ret = VLC_SUCCESS;
  97
  98             /* Notify playlist */
  99             {
 100                 vlc_value_t val;
 101                 playlist_t *p_playlist =
 102                 (playlist_t *)vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
 103                                                FIND_PARENT );
 104                 if( p_playlist )
 105                 {
 106                     val.i_int = p_playlist->i_index;
 107                     var_Set( p_playlist, "item-change", val );
 108                     vlc_object_release( p_playlist );
 109                 }
 110             }
 111             break;
 112         }
 113
 114         case INPUT_ADD_INFO:
 115         {
 116             char *psz_cat = (char *)va_arg( args, char * );
 117             char *psz_name = (char *)va_arg( args, char * );
 118             char *psz_format = (char *)va_arg( args, char * );
 119
 120             info_category_t *p_cat;
 121             info_t *p_info;
 122             int i;
 123
 124             i_ret = VLC_EGENERIC;
 125
 126             vlc_mutex_lock( &p_input->p_item->lock );
 127             for( i = 0; i < p_input->p_item->i_categories; i++ )
 128             {
 129                 if( !strcmp( p_input->p_item->pp_categories[i]->psz_name,
 130                              psz_cat ) )
 131                     break;
 132             }
 133
 134             if( i == p_input->p_item->i_categories )
 135             {
 136                 p_cat = malloc( sizeof( info_category_t ) );
 137                 if( !p_cat ) break;
 138                 p_cat->psz_name = strdup( psz_cat );
 139                 p_cat->i_infos = 0;
 140                 p_cat->pp_infos = NULL;
 141                 INSERT_ELEM( p_input->p_item->pp_categories,
 142                              p_input->p_item->i_categories,
 143                              p_input->p_item->i_categories, p_cat );
 144             }
 145
 146             p_cat = p_input->p_item->pp_categories[i];
 147
 148             for( i = 0; i < p_cat->i_infos; i++ )
 149             {
 150                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 151                 {
 152                     if( p_cat->pp_infos[i]->psz_value )
 153                         free( p_cat->pp_infos[i]->psz_value );
 154                     break;
 155                 }
 156             }
 157
 158             if( i == p_cat->i_infos )
 159             {
 160                 p_info = malloc( sizeof( info_t ) );
 161                 if( !p_info ) break;
 162                 INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos,
 163                              p_cat->i_infos, p_info );
 164                 p_info->psz_name = strdup( psz_name );
 165             }
 166
 167             p_info = p_cat->pp_infos[i];
 168             vasprintf( &p_info->psz_value, psz_format, args );
 169
 170             vlc_mutex_unlock( &p_input->p_item->lock );
 171
 172             i_ret = VLC_SUCCESS;
 173
 174             /* Notify playlist */
 175             {
 176                 vlc_value_t val;
 177                 playlist_t *p_playlist =
 178                 (playlist_t *)vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
 179                                                FIND_PARENT );
 180                 if( p_playlist )
 181                 {
 182                     val.i_int = p_playlist->i_index;
 183                     var_Set( p_playlist, "item-change", val );
 184                     vlc_object_release( p_playlist );
 185                 }
 186             }
 187         }
 188         break;
 189
 190         case INPUT_ADD_BOOKMARK:
 191             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 192             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 193             if( !p_bkmk->psz_name )
 194             {
 195                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 196                            p_input->i_bookmarks );
 197             }
 198             TAB_APPEND( p_input->i_bookmarks, p_input->pp_bookmarks, p_bkmk );
 199
 200             /* Reflect the changes on the object var */
 201             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 202             {
 203                 int i;
 204                 for( i = 0; i < p_input->i_bookmarks; i++ )
 205                 {
 206                     val.i_int = i;
 207                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
 208                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 209                                 &val, &text );
 210                 }
 211             }
 212
 213             i_ret = VLC_SUCCESS;
 214             break;
 215
 216         case INPUT_DEL_BOOKMARK:
 217             i_bkmk = (int)va_arg( args, int );
 218             if( i_bkmk < p_input->i_bookmarks )
 219             {
 220                 int i;
 221                 p_bkmk = p_input->pp_bookmarks[i_bkmk];
 222                 TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
 223                             p_bkmk );
 224                 vlc_seekpoint_Delete( p_bkmk );
 225
 226                 /* Reflect the changes on the object var */
 227                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 228                 for( i = 0; i < p_input->i_bookmarks; i++ )
 229                 {
 230                     val.i_int = i;
 231                     text.psz_string = p_input->pp_bookmarks[i]->psz_name;
 232                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 233                                 &val, &text );
 234                 }
 235                 i_ret = VLC_SUCCESS;
 236             }
 237             else i_ret = VLC_EGENERIC;
 238             break;
 239
 240         case INPUT_GET_BOOKMARKS:
 241             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 242             pi_bkmk = (int *)va_arg( args, int * );
 243             if( p_input->i_bookmarks )
 244             {
 245                 int i;
 246
 247                 *pi_bkmk = p_input->i_bookmarks;
 248                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 249                               p_input->i_bookmarks );
 250                 for( i = 0; i < p_input->i_bookmarks; i++ )
 251                 {
 252                     (*ppp_bkmk)[i] =
 253                         vlc_seekpoint_Duplicate(p_input->pp_bookmarks[i]);
 254                 }
 255                 i_ret = VLC_SUCCESS;
 256             }
 257             else
 258             {
 259                 *ppp_bkmk = NULL;
 260                 *pi_bkmk = 0;
 261                 i_ret = VLC_EGENERIC;
 262             }
 263             break;
 264
 265         case INPUT_CLEAR_BOOKMARKS:
 266             if( p_input->i_bookmarks )
 267             {
 268                 int i;
 269
 270                 for( i = p_input->i_bookmarks - 1; i >= 0; i-- )
 271                 {
 272                     p_bkmk = p_input->pp_bookmarks[i];
 273                     TAB_REMOVE( p_input->i_bookmarks, p_input->pp_bookmarks,
 274                                 p_bkmk );
 275                     vlc_seekpoint_Delete( p_bkmk );
 276                 }
 277                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 278             }
 279             i_ret = VLC_SUCCESS;
 280             break;
 281
 282         case INPUT_SET_BOOKMARK:
 283             i_bkmk = (int)va_arg( args, int );
 284             if( i_bkmk >= 0 && i_bkmk < p_input->i_bookmarks )
 285             {
 286                 vlc_value_t pos;
 287                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 288                 if( p_input->pp_bookmarks[i_bkmk]->i_byte_offset ||
 289                     ( !p_input->pp_bookmarks[i_bkmk]->i_byte_offset &&
 290                       !p_input->pp_bookmarks[i_bkmk]->i_time_offset ) )
 291                 {
 292                     pos.f_float = p_input->pp_bookmarks[i_bkmk]->i_byte_offset/
 293                         (double)p_input->stream.p_selected_area->i_size;
 294                     i_ret = var_Set( p_input, "position", pos );
 295                 }
 296                 else if( p_input->pp_bookmarks[i_bkmk]->i_time_offset )
 297                 {
 298                     pos.i_time = p_input->pp_bookmarks[i_bkmk]->i_time_offset;
 299                     i_ret = var_Set( p_input, "time", pos );
 300                 }
 301                 vlc_mutex_lock( &p_input->stream.stream_lock );
 302             }
 303             else
 304             {
 305                 i_ret = VLC_EGENERIC;
 306             }
 307             break;
 308
 309         case INPUT_GET_SUBDELAY:
 310             pi = (int*)va_arg( args, int *);
 311             /* We work on the first subtitle */
 312             if( p_input->p_sys != NULL )
 313             {
 314                 if( p_input->p_sys->i_sub > 0 )
 315                 {
 316                     i_ret = var_Get( (vlc_object_t *)p_input->p_sys->sub[0],
 317                                       "sub-delay", &val );
 318                     *pi = val.i_int;
 319                 }
 320                 else
 321                 {
 322                     msg_Dbg( p_input,"no subtitle track");
 323                     i_ret = VLC_EGENERIC;
 324                 }
 325             }
 326             else
 327             {
 328                 i_ret = VLC_EGENERIC;
 329             }
 330             break;
 331
 332         case INPUT_SET_SUBDELAY:
 333             i = (int)va_arg( args, int );
 334             /* We work on the first subtitle */
 335             if( p_input->p_sys )
 336             {
 337                 if( p_input->p_sys->i_sub > 0 )
 338                 {
 339                     val.i_int = i;
 340                     i_ret = var_Set( (vlc_object_t *)p_input->p_sys->sub[0],
 341                                       "sub-delay", val );
 342                 }
 343                 else
 344                 {
 345                     msg_Dbg( p_input,"no subtitle track");
 346                     i_ret = VLC_EGENERIC;
 347                 }
 348             }
 349             else
 350             {
 351                 i_ret = VLC_EGENERIC;
 352             }
 353             break;
 354
 355         default:
 356             msg_Err( p_input, "unknown query in input_vaControl" );
 357             i_ret = VLC_EGENERIC;
 358             break;
 359     }
 360     vlc_mutex_unlock( &p_input->stream.stream_lock );
 361
 362     return i_ret;
 363 }