git.sesse.net Git - vlc/blob - modules/access/vcdx/intf.c

   1 /*****************************************************************************
   2  * intf.c: Video CD interface to handle user interaction and still time
   3  *****************************************************************************
   4  * Copyright (C) 2002,2003 VideoLAN
   5  * $Id: intf.c,v 1.11 2003/12/05 05:01:17 rocky Exp $
   6  *
   7  * Authors: Rocky Bernstein <rocky@panix.com>
   8  *   from DVD code by Stéphane Borel <stef@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <vlc/vlc.h>
  29 #include <vlc/intf.h>
  30
  31 #include "stream_control.h"
  32 #include "input_ext-intf.h"
  33 #include "input_ext-dec.h"
  34 #include "vlc_keys.h"
  35
  36 #include "vcd.h"
  37 #include "vcdplayer.h"
  38 #include "intf.h"
  39
  40 /*****************************************************************************
  41  * Local prototypes.
  42  *****************************************************************************/
  43 static int  InitThread     ( intf_thread_t *p_intf );
  44 static int  KeyEvent       ( vlc_object_t *, char const *,
  45                              vlc_value_t, vlc_value_t, void * );
  46
  47 /* Exported functions */
  48 static void RunIntf        ( intf_thread_t *p_intf );
  49
  50 /*****************************************************************************
  51  * OpenIntf: initialize dummy interface
  52  *****************************************************************************/
  53 int E_(OpenIntf) ( vlc_object_t *p_this )
  54 {
  55     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  56
  57     msg_Dbg( p_intf, "VCDOpenIntf" );
  58
  59     /* Allocate instance and initialize some members */
  60     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  61     if( p_intf->p_sys == NULL )
  62     {
  63         return( 1 );
  64     };
  65
  66     p_intf->pf_run = RunIntf;
  67
  68     var_AddCallback( p_intf->p_vlc, "key-pressed", KeyEvent, p_intf );
  69     p_intf->p_sys->m_still_time = 0;
  70     p_intf->p_sys->b_inf_still = 0;
  71     p_intf->p_sys->b_still = 0;
  72
  73     return( 0 );
  74 }
  75
  76 /*****************************************************************************
  77  * CloseIntf: destroy dummy interface
  78  *****************************************************************************/
  79 void E_(CloseIntf) ( vlc_object_t *p_this )
  80 {
  81     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  82     var_DelCallback( p_intf->p_vlc, "key-pressed", KeyEvent, p_intf );
  83
  84     /* Destroy structure */
  85     free( p_intf->p_sys );
  86 }
  87
  88
  89 /*****************************************************************************
  90  * RunIntf: main loop
  91  *****************************************************************************/
  92 static void RunIntf( intf_thread_t *p_intf )
  93 {
  94     vlc_object_t      * p_vout = NULL;
  95     mtime_t             mtime = 0;
  96     mtime_t             mlast = 0;
  97     thread_vcd_data_t * p_vcd;
  98     input_thread_t    * p_input;
  99
 100     /* What you add to the last input number entry. It accumulates all of
 101        the 10_ADD keypresses */
 102     int number_addend = 0;
 103
 104     if( InitThread( p_intf ) < 0 )
 105     {
 106         msg_Err( p_intf, "can't initialize intf" );
 107         return;
 108     }
 109
 110     p_input = p_intf->p_sys->p_input;
 111     p_vcd   = p_intf->p_sys->p_vcd =
 112       (thread_vcd_data_t *) p_input->p_access_data;
 113
 114     dbg_print( INPUT_DBG_CALL, "intf initialized" );
 115
 116     /* Main loop */
 117     while( !p_intf->b_die )
 118     {
 119       vlc_mutex_lock( &p_intf->change_lock );
 120
 121         /*
 122          * Have we timed-out in showing a still frame?
 123          */
 124         if( p_intf->p_sys->b_still && !p_intf->p_sys->b_inf_still )
 125         {
 126             if( p_intf->p_sys->m_still_time > 0 )
 127             {
 128                 /* Update remaining still time */
 129                 dbg_print(INPUT_DBG_STILL, "updating still time");
 130                 mtime = mdate();
 131                 if( mlast )
 132                 {
 133                     p_intf->p_sys->m_still_time -= mtime - mlast;
 134                 }
 135
 136                 mlast = mtime;
 137             }
 138             else
 139             {
 140                 /* Still time has elasped; set to continue playing. */
 141                 dbg_print(INPUT_DBG_STILL, "wait time done - setting play");
 142                 input_SetStatus( p_intf->p_sys->p_input,
 143                                  INPUT_STATUS_PLAY );
 144                 p_intf->p_sys->m_still_time = 0;
 145                 p_intf->p_sys->b_still = 0;
 146                 mlast = 0;
 147             }
 148         }
 149
 150       /*
 151        * Do we have a keyboard event?
 152        */
 153       if( p_vout && p_intf->p_sys->b_key_pressed )
 154         {
 155           vlc_value_t val;
 156           int i, i_action = -1;
 157           struct hotkey *p_hotkeys = p_intf->p_vlc->p_hotkeys;
 158
 159           p_intf->p_sys->b_key_pressed = VLC_FALSE;
 160
 161           /* Find action triggered by hotkey (if any) */
 162           var_Get( p_intf->p_vlc, "key-pressed", &val );
 163
 164           dbg_print( INPUT_DBG_EVENT, "Key pressed %d", val.i_int );
 165
 166           for( i = 0; p_hotkeys[i].psz_action != NULL; i++ )
 167             {
 168               if( p_hotkeys[i].i_key == val.i_int )
 169                 {
 170                   i_action = p_hotkeys[i].i_action;
 171                 }
 172             }
 173
 174           if( i_action != -1) {
 175             switch (i_action) {
 176
 177             case ACTIONID_NAV_LEFT:
 178               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_LEFT - prev (%d)",
 179                          number_addend );
 180               do {
 181                 vcdplayer_play_prev( p_input );
 182               } while (number_addend-- > 0);
 183               break;
 184
 185             case ACTIONID_NAV_RIGHT:
 186               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_RIGHT - next (%d)",
 187                          number_addend );
 188               do {
 189                 vcdplayer_play_next( p_input );
 190               } while (number_addend-- > 0);
 191               break;
 192
 193             case ACTIONID_NAV_UP:
 194               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_UP - return" );
 195               do {
 196                 vcdplayer_play_return( p_input );
 197               } while (number_addend-- > 0);
 198               break;
 199
 200             case ACTIONID_NAV_DOWN:
 201               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_DOWN - default"  );
 202               vcdplayer_play_default( p_input );
 203               break;
 204
 205             case ACTIONID_NAV_ACTIVATE:
 206               {
 207                 vcdinfo_itemid_t itemid;
 208                 itemid.type=p_vcd->play_item.type;
 209
 210                 dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_ACTIVATE" );
 211
 212                 if ( vcdplayer_pbc_is_on( p_vcd ) && number_addend != 0 ) {
 213                   lid_t next_num=vcdinfo_selection_get_lid(p_vcd->vcd,
 214                                                            p_vcd->cur_lid,
 215                                                            number_addend);
 216                   if (VCDINFO_INVALID_LID != next_num) {
 217                     itemid.num  = next_num;
 218                     itemid.type = VCDINFO_ITEM_TYPE_LID;
 219                     VCDPlay( p_input, itemid );
 220                   }
 221                 } else {
 222                   itemid.num = number_addend;
 223                   VCDPlay( p_input, itemid );
 224                 }
 225                 break;
 226               }
 227             }
 228             number_addend = 0;
 229
 230             /* Any keypress gets rid of still frame waiting.
 231                FIXME - should handle just the ones that cause an action.
 232             */
 233             if( p_intf->p_sys->b_still )
 234               {
 235                 dbg_print(INPUT_DBG_STILL, "Playing still after activate");
 236                 input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );
 237                 p_intf->p_sys->b_still = 0;
 238                 p_intf->p_sys->b_inf_still = 0;
 239                 p_intf->p_sys->m_still_time = 0;
 240               }
 241
 242           } else {
 243             unsigned int digit_entered=0;
 244
 245             switch (val.i_int) {
 246             case '9':
 247               digit_entered++;
 248             case '8':
 249               digit_entered++;
 250             case '7':
 251               digit_entered++;
 252             case '6':
 253               digit_entered++;
 254             case '5':
 255               digit_entered++;
 256             case '4':
 257               digit_entered++;
 258             case '3':
 259               digit_entered++;
 260             case '2':
 261               digit_entered++;
 262             case '1':
 263               digit_entered++;
 264             case '0':
 265               {
 266                 number_addend *= 10;
 267                 number_addend += digit_entered;
 268                 dbg_print( INPUT_DBG_EVENT,
 269                            "Added %d. Number is now: %d\n",
 270                            digit_entered, number_addend);
 271                 break;
 272               }
 273             }
 274           }
 275         }
 276
 277
 278       vlc_mutex_unlock( &p_intf->change_lock );
 279
 280       if( p_vout == NULL )
 281         {
 282           p_vout = vlc_object_find( p_intf->p_sys->p_input,
 283                                     VLC_OBJECT_VOUT, FIND_CHILD );
 284           if( p_vout )
 285             {
 286               var_AddCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 287             }
 288         }
 289
 290
 291       /* Wait a bit */
 292       msleep( INTF_IDLE_SLEEP );
 293     }
 294
 295     if( p_vout )
 296     {
 297         var_DelCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 298         vlc_object_release( p_vout );
 299     }
 300
 301     vlc_object_release( p_intf->p_sys->p_input );
 302 }
 303
 304 /*****************************************************************************
 305  * InitThread:
 306  *****************************************************************************/
 307 static int InitThread( intf_thread_t * p_intf )
 308 {
 309     /* We might need some locking here */
 310     if( !p_intf->b_die )
 311     {
 312         input_thread_t * p_input;
 313
 314         p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT, FIND_PARENT );
 315
 316         /* Maybe the input just died */
 317         if( p_input == NULL )
 318         {
 319             return VLC_EGENERIC;
 320         }
 321
 322         vlc_mutex_lock( &p_intf->change_lock );
 323
 324         p_intf->p_sys->p_input = p_input;
 325
 326         p_intf->p_sys->b_move = VLC_FALSE;
 327         p_intf->p_sys->b_click = VLC_FALSE;
 328         p_intf->p_sys->b_key_pressed = VLC_FALSE;
 329
 330         vlc_mutex_unlock( &p_intf->change_lock );
 331
 332         return VLC_SUCCESS;
 333     }
 334     else
 335     {
 336         return VLC_EGENERIC;
 337     }
 338 }
 339
 340 /*****************************************************************************
 341  * KeyEvent: callback for keyboard events
 342  *****************************************************************************/
 343 static int KeyEvent( vlc_object_t *p_this, char const *psz_var,
 344                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 345 {
 346     intf_thread_t *p_intf = (intf_thread_t *)p_data;
 347     vlc_mutex_lock( &p_intf->change_lock );
 348
 349     p_intf->p_sys->b_key_pressed = VLC_TRUE;
 350
 351     vlc_mutex_unlock( &p_intf->change_lock );
 352
 353     return VLC_SUCCESS;
 354 }
 355
 356 /*****************************************************************************
 357  * vcdIntfStillTime: function provided to demux plugin to request
 358  * still images
 359  *****************************************************************************/
 360 int vcdIntfStillTime( intf_thread_t *p_intf, int i_sec )
 361 {
 362     vlc_mutex_lock( &p_intf->change_lock );
 363
 364     if( i_sec == -1 )
 365     {
 366         p_intf->p_sys->b_still     = 1;
 367         p_intf->p_sys->b_inf_still = 1;
 368     }
 369     else if( i_sec > 0 )
 370     {
 371         p_intf->p_sys->b_still = 1;
 372         p_intf->p_sys->m_still_time = 1000000 * i_sec;
 373     }
 374     vlc_mutex_unlock( &p_intf->change_lock );
 375
 376     return VLC_SUCCESS;
 377 }
 378
 379 /*****************************************************************************
 380  * vcdIntfStillTime: function provided to reset still image
 381  *****************************************************************************/
 382 int vcdIntfResetStillTime( intf_thread_t *p_intf )
 383 {
 384     vlc_mutex_lock( &p_intf->change_lock );
 385     p_intf->p_sys->m_still_time = 0;
 386     input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );
 387     vlc_mutex_unlock( &p_intf->change_lock );
 388
 389     return VLC_SUCCESS;
 390 }