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  * $Id$
   6  *
   7  * Author: 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                 var_SetInteger( p_intf->p_sys->p_input, "state", PLAYING_S );
 143                 p_intf->p_sys->m_still_time = 0;
 144                 p_intf->p_sys->b_still = 0;
 145                 mlast = 0;
 146             }
 147         }
 148
 149       /*
 150        * Do we have a keyboard event?
 151        */
 152       if( p_vout && p_intf->p_sys->b_key_pressed )
 153         {
 154           vlc_value_t val;
 155           int i, i_action = -1;
 156           struct hotkey *p_hotkeys = p_intf->p_vlc->p_hotkeys;
 157
 158           p_intf->p_sys->b_key_pressed = VLC_FALSE;
 159
 160           /* Find action triggered by hotkey (if any) */
 161           var_Get( p_intf->p_vlc, "key-pressed", &val );
 162
 163           dbg_print( INPUT_DBG_EVENT, "Key pressed %d", val.i_int );
 164
 165           for( i = 0; p_hotkeys[i].psz_action != NULL; i++ )
 166             {
 167               if( p_hotkeys[i].i_key == val.i_int )
 168                 {
 169                   i_action = p_hotkeys[i].i_action;
 170                 }
 171             }
 172
 173           if( i_action != -1) {
 174             switch (i_action) {
 175
 176             case ACTIONID_NAV_LEFT:
 177               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_LEFT - prev (%d)",
 178                          number_addend );
 179               do {
 180                 vcdplayer_play_prev( p_input );
 181               }        while (number_addend-- > 0);
 182               break;
 183
 184             case ACTIONID_NAV_RIGHT:
 185               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_RIGHT - next (%d)",
 186                          number_addend );
 187               do {
 188                 vcdplayer_play_next( p_input );
 189               } while (number_addend-- > 0);
 190               break;
 191
 192             case ACTIONID_NAV_UP:
 193               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_UP - return" );
 194               do {
 195                 vcdplayer_play_return( p_input );
 196               } while (number_addend-- > 0);
 197               break;
 198
 199             case ACTIONID_NAV_DOWN:
 200               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_DOWN - default"  );
 201               vcdplayer_play_default( p_input );
 202               break;
 203
 204             case ACTIONID_NAV_ACTIVATE:
 205               {
 206                 vcdinfo_itemid_t itemid;
 207                 itemid.type=p_vcd->play_item.type;
 208
 209                 dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_ACTIVATE" );
 210
 211                 if ( vcdplayer_pbc_is_on( p_vcd ) && number_addend != 0 ) {
 212                   lid_t next_num=vcdinfo_selection_get_lid(p_vcd->vcd,
 213                                                            p_vcd->cur_lid,
 214                                                            number_addend);
 215                   if (VCDINFO_INVALID_LID != next_num) {
 216                     itemid.num  = next_num;
 217                     itemid.type = VCDINFO_ITEM_TYPE_LID;
 218                     VCDPlay( p_input, itemid );
 219                   }
 220                 } else {
 221                   itemid.num = number_addend;
 222                   VCDPlay( p_input, itemid );
 223                 }
 224                 break;
 225               }
 226             }
 227             number_addend = 0;
 228
 229             /* Any keypress gets rid of still frame waiting.
 230                FIXME - should handle just the ones that cause an action.
 231             */
 232             if( p_intf->p_sys->b_still )
 233               {
 234                 dbg_print(INPUT_DBG_STILL, "Playing still after activate");
 235                 var_SetInteger( p_intf->p_sys->p_input, "state", PLAYING_S );
 236                 p_intf->p_sys->b_still = 0;
 237                 p_intf->p_sys->b_inf_still = 0;
 238                 p_intf->p_sys->m_still_time = 0;
 239               }
 240
 241           } else {
 242             unsigned int digit_entered=0;
 243
 244             switch (val.i_int) {
 245             case '9':
 246               digit_entered++;
 247             case '8':
 248               digit_entered++;
 249             case '7':
 250               digit_entered++;
 251             case '6':
 252               digit_entered++;
 253             case '5':
 254               digit_entered++;
 255             case '4':
 256               digit_entered++;
 257             case '3':
 258               digit_entered++;
 259             case '2':
 260               digit_entered++;
 261             case '1':
 262               digit_entered++;
 263             case '0':
 264               {
 265                 number_addend *= 10;
 266                 number_addend += digit_entered;
 267                 dbg_print( INPUT_DBG_EVENT,
 268                            "Added %d. Number is now: %d\n",
 269                            digit_entered, number_addend);
 270                 break;
 271               }
 272             }
 273           }
 274         }
 275
 276
 277       vlc_mutex_unlock( &p_intf->change_lock );
 278
 279       if( p_vout == NULL )
 280         {
 281           p_vout = vlc_object_find( p_intf->p_sys->p_input,
 282                                     VLC_OBJECT_VOUT, FIND_CHILD );
 283           if( p_vout )
 284             {
 285               var_AddCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 286             }
 287         }
 288
 289
 290       /* Wait a bit */
 291       msleep( INTF_IDLE_SLEEP );
 292     }
 293
 294     if( p_vout )
 295     {
 296         var_DelCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 297         vlc_object_release( p_vout );
 298     }
 299
 300     vlc_object_release( p_intf->p_sys->p_input );
 301 }
 302
 303 /*****************************************************************************
 304  * InitThread:
 305  *****************************************************************************/
 306 static int InitThread( intf_thread_t * p_intf )
 307 {
 308     /* We might need some locking here */
 309     if( !p_intf->b_die )
 310     {
 311         input_thread_t * p_input;
 312
 313         p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT, FIND_PARENT );
 314
 315         /* Maybe the input just died */
 316         if( p_input == NULL )
 317         {
 318             return VLC_EGENERIC;
 319         }
 320
 321         vlc_mutex_lock( &p_intf->change_lock );
 322
 323         p_intf->p_sys->p_input = p_input;
 324
 325         p_intf->p_sys->b_move = VLC_FALSE;
 326         p_intf->p_sys->b_click = VLC_FALSE;
 327         p_intf->p_sys->b_key_pressed = VLC_FALSE;
 328
 329         vlc_mutex_unlock( &p_intf->change_lock );
 330
 331         return VLC_SUCCESS;
 332     }
 333     else
 334     {
 335         return VLC_EGENERIC;
 336     }
 337 }
 338
 339 /*****************************************************************************
 340  * KeyEvent: callback for keyboard events
 341  *****************************************************************************/
 342 static int KeyEvent( vlc_object_t *p_this, char const *psz_var,
 343                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 344 {
 345     intf_thread_t *p_intf = (intf_thread_t *)p_data;
 346     vlc_mutex_lock( &p_intf->change_lock );
 347
 348     p_intf->p_sys->b_key_pressed = VLC_TRUE;
 349
 350     vlc_mutex_unlock( &p_intf->change_lock );
 351
 352     return VLC_SUCCESS;
 353 }
 354
 355 /*****************************************************************************
 356  * vcdIntfStillTime: function provided to demux plugin to request
 357  * still images
 358  *****************************************************************************/
 359 int vcdIntfStillTime( intf_thread_t *p_intf, int i_sec )
 360 {
 361     vlc_mutex_lock( &p_intf->change_lock );
 362
 363     if( i_sec == -1 )
 364     {
 365         p_intf->p_sys->b_still     = 1;
 366         p_intf->p_sys->b_inf_still = 1;
 367     }
 368     else if( i_sec > 0 )
 369     {
 370         p_intf->p_sys->b_still = 1;
 371         p_intf->p_sys->m_still_time = 1000000 * i_sec;
 372     }
 373     vlc_mutex_unlock( &p_intf->change_lock );
 374
 375     return VLC_SUCCESS;
 376 }
 377
 378 /*****************************************************************************
 379  * vcdIntfStillTime: function provided to reset still image
 380  *****************************************************************************/
 381 int vcdIntfResetStillTime( intf_thread_t *p_intf )
 382 {
 383     vlc_mutex_lock( &p_intf->change_lock );
 384     p_intf->p_sys->m_still_time = 0;
 385     var_SetInteger( p_intf->p_sys->p_input, "state", PLAYING_S );
 386     vlc_mutex_unlock( &p_intf->change_lock );
 387
 388     return VLC_SUCCESS;
 389 }