src/input/var.c

   1 /*****************************************************************************
   2  * var.c: object variables for input thread
   3  *****************************************************************************
   4  * Copyright (C) 2004-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include <assert.h>
  33 #include <math.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36
  37 #include "input_internal.h"
  38
  39 /*****************************************************************************
  40  * Callbacks
  41  *****************************************************************************/
  42 static int StateCallback   ( vlc_object_t *p_this, char const *psz_cmd,
  43                              vlc_value_t oldval, vlc_value_t newval, void * );
  44 static int RateCallback    ( vlc_object_t *p_this, char const *psz_cmd,
  45                              vlc_value_t oldval, vlc_value_t newval, void * );
  46 static int PositionCallback( vlc_object_t *p_this, char const *psz_cmd,
  47                              vlc_value_t oldval, vlc_value_t newval, void * );
  48 static int TimeCallback    ( vlc_object_t *p_this, char const *psz_cmd,
  49                              vlc_value_t oldval, vlc_value_t newval, void * );
  50 static int ProgramCallback ( vlc_object_t *p_this, char const *psz_cmd,
  51                              vlc_value_t oldval, vlc_value_t newval, void * );
  52 static int TitleCallback   ( vlc_object_t *p_this, char const *psz_cmd,
  53                              vlc_value_t oldval, vlc_value_t newval, void * );
  54 static int SeekpointCallback( vlc_object_t *p_this, char const *psz_cmd,
  55                              vlc_value_t oldval, vlc_value_t newval, void * );
  56 static int NavigationCallback( vlc_object_t *p_this, char const *psz_cmd,
  57                              vlc_value_t oldval, vlc_value_t newval, void * );
  58 static int ESCallback      ( vlc_object_t *p_this, char const *psz_cmd,
  59                              vlc_value_t oldval, vlc_value_t newval, void * );
  60 static int EsDelayCallback ( vlc_object_t *p_this, char const *psz_cmd,
  61                              vlc_value_t oldval, vlc_value_t newval, void * );
  62
  63 static int BookmarkCallback( vlc_object_t *p_this, char const *psz_cmd,
  64                              vlc_value_t oldval, vlc_value_t newval, void * );
  65
  66 static int RecordCallback( vlc_object_t *p_this, char const *psz_cmd,
  67                            vlc_value_t oldval, vlc_value_t newval,
  68                            void *p_data );
  69 static int FrameNextCallback( vlc_object_t *p_this, char const *psz_cmd,
  70                               vlc_value_t oldval, vlc_value_t newval,
  71                               void *p_data );
  72
  73 typedef struct
  74 {
  75     const char *psz_name;
  76     vlc_callback_t callback;
  77 } vlc_input_callback_t;
  78
  79 static void InputAddCallbacks( input_thread_t *, const vlc_input_callback_t * );
  80 static void InputDelCallbacks( input_thread_t *, const vlc_input_callback_t * );
  81
  82 #ifdef CALLBACK /* For windows */
  83 # undef CALLBACK /* We don't care of this one here */
  84 #endif
  85 /* List all callbacks added by input */
  86 #define CALLBACK(name,cb) { name, cb }
  87 static const vlc_input_callback_t p_input_callbacks[] =
  88 {
  89     CALLBACK( "state", StateCallback ),
  90     CALLBACK( "rate", RateCallback ),
  91     CALLBACK( "position", PositionCallback ),
  92     CALLBACK( "position-offset", PositionCallback ),
  93     CALLBACK( "time", TimeCallback ),
  94     CALLBACK( "time-offset", TimeCallback ),
  95     CALLBACK( "bookmark", BookmarkCallback ),
  96     CALLBACK( "program", ProgramCallback ),
  97     CALLBACK( "title", TitleCallback ),
  98     CALLBACK( "chapter", SeekpointCallback ),
  99     CALLBACK( "audio-delay", EsDelayCallback ),
 100     CALLBACK( "spu-delay", EsDelayCallback ),
 101     CALLBACK( "video-es", ESCallback ),
 102     CALLBACK( "audio-es", ESCallback ),
 103     CALLBACK( "spu-es", ESCallback ),
 104     CALLBACK( "record", RecordCallback ),
 105     CALLBACK( "frame-next", FrameNextCallback ),
 106
 107     CALLBACK( NULL, NULL )
 108 };
 109 static const vlc_input_callback_t p_input_navigation_callbacks[] =
 110 {
 111     CALLBACK( "next-title", TitleCallback ),
 112     CALLBACK( "prev-title", TitleCallback ),
 113
 114     CALLBACK( NULL, NULL )
 115 };
 116 static const vlc_input_callback_t p_input_title_callbacks[] =
 117 {
 118     CALLBACK( "next-chapter", SeekpointCallback ),
 119     CALLBACK( "prev-chapter", SeekpointCallback ),
 120
 121     CALLBACK( NULL, NULL )
 122 };
 123 #undef CALLBACK
 124
 125 /*****************************************************************************
 126  * input_ControlVarInit:
 127  *  Create all control object variables with their callbacks
 128  *****************************************************************************/
 129 void input_ControlVarInit ( input_thread_t *p_input )
 130 {
 131     vlc_value_t val, text;
 132
 133     /* State */
 134     var_Create( p_input, "state", VLC_VAR_INTEGER );
 135     val.i_int = p_input->p->i_state;
 136     var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
 137
 138     /* Rate */
 139     var_Create( p_input, "rate", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
 140
 141     var_Create( p_input, "frame-next", VLC_VAR_VOID );
 142
 143     /* Position */
 144     var_Create( p_input, "position",  VLC_VAR_FLOAT );
 145     var_Create( p_input, "position-offset",  VLC_VAR_FLOAT );
 146     val.f_float = 0.0;
 147     var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
 148
 149     /* Time */
 150     var_Create( p_input, "time",  VLC_VAR_TIME );
 151     var_Create( p_input, "time-offset",  VLC_VAR_TIME );    /* relative */
 152     val.i_time = 0;
 153     var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
 154
 155     /* Bookmark */
 156     var_Create( p_input, "bookmark", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE |
 157                 VLC_VAR_ISCOMMAND );
 158     val.psz_string = _("Bookmark");
 159     var_Change( p_input, "bookmark", VLC_VAR_SETTEXT, &val, NULL );
 160
 161     /* Program */
 162     var_Create( p_input, "program", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE |
 163                 VLC_VAR_DOINHERIT );
 164     var_Get( p_input, "program", &val );
 165     if( val.i_int <= 0 )
 166         var_Change( p_input, "program", VLC_VAR_DELCHOICE, &val, NULL );
 167     text.psz_string = _("Program");
 168     var_Change( p_input, "program", VLC_VAR_SETTEXT, &text, NULL );
 169
 170     /* Programs */
 171     var_Create( p_input, "programs", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 172     text.psz_string = _("Programs");
 173     var_Change( p_input, "programs", VLC_VAR_SETTEXT, &text, NULL );
 174
 175     /* Title */
 176     var_Create( p_input, "title", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 177     text.psz_string = _("Title");
 178     var_Change( p_input, "title", VLC_VAR_SETTEXT, &text, NULL );
 179
 180     /* Chapter */
 181     var_Create( p_input, "chapter", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 182     text.psz_string = _("Chapter");
 183     var_Change( p_input, "chapter", VLC_VAR_SETTEXT, &text, NULL );
 184
 185     /* Navigation The callback is added after */
 186     var_Create( p_input, "navigation", VLC_VAR_VARIABLE | VLC_VAR_HASCHOICE );
 187     text.psz_string = _("Navigation");
 188     var_Change( p_input, "navigation", VLC_VAR_SETTEXT, &text, NULL );
 189
 190     /* Delay */
 191     var_Create( p_input, "audio-delay", VLC_VAR_TIME );
 192     val.i_time = INT64_C(1000) * var_GetInteger( p_input, "audio-desync" );
 193     var_Change( p_input, "audio-delay", VLC_VAR_SETVALUE, &val, NULL );
 194     var_Create( p_input, "spu-delay", VLC_VAR_TIME );
 195     val.i_time = 0;
 196     var_Change( p_input, "spu-delay", VLC_VAR_SETVALUE, &val, NULL );
 197
 198     /* Video ES */
 199     var_Create( p_input, "video-es", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 200     text.psz_string = _("Video Track");
 201     var_Change( p_input, "video-es", VLC_VAR_SETTEXT, &text, NULL );
 202
 203     /* Audio ES */
 204     var_Create( p_input, "audio-es", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 205     text.psz_string = _("Audio Track");
 206     var_Change( p_input, "audio-es", VLC_VAR_SETTEXT, &text, NULL );
 207
 208     /* Spu ES */
 209     var_Create( p_input, "spu-es", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 210     text.psz_string = _("Subtitles Track");
 211     var_Change( p_input, "spu-es", VLC_VAR_SETTEXT, &text, NULL );
 212
 213     /* Special read only objects variables for intf */
 214     var_Create( p_input, "bookmarks", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 215
 216     var_Create( p_input, "length",  VLC_VAR_TIME );
 217     val.i_time = 0;
 218     var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );
 219
 220     var_Create( p_input, "bit-rate", VLC_VAR_INTEGER );
 221     var_Create( p_input, "sample-rate", VLC_VAR_INTEGER );
 222
 223     if( !p_input->b_preparsing )
 224     {
 225         /* Special "intf-event" variable. */
 226         var_Create( p_input, "intf-event", VLC_VAR_INTEGER );
 227     }
 228
 229     /* Add all callbacks
 230      * XXX we put callback only in non preparsing mode. We need to create the variable
 231      * unless someone want to check all var_Get/var_Change return value ... */
 232     if( !p_input->b_preparsing )
 233         InputAddCallbacks( p_input, p_input_callbacks );
 234 }
 235
 236 /*****************************************************************************
 237  * input_ControlVarStop:
 238  *****************************************************************************/
 239 void input_ControlVarStop( input_thread_t *p_input )
 240 {
 241     if( !p_input->b_preparsing )
 242         InputDelCallbacks( p_input, p_input_callbacks );
 243
 244     if( p_input->p->i_title > 0 )
 245     {
 246         char name[sizeof("title ") + 5 ];
 247         int i;
 248
 249         InputDelCallbacks( p_input, p_input_navigation_callbacks );
 250         InputDelCallbacks( p_input, p_input_title_callbacks );
 251
 252         for( i = 0; i < p_input->p->i_title; i++ )
 253         {
 254             snprintf( name, sizeof(name), "title %2i", i );
 255             var_DelCallback( p_input, name, NavigationCallback, (void *)(intptr_t)i );
 256         }
 257     }
 258 }
 259
 260 /*****************************************************************************
 261  * input_ControlVarNavigation:
 262  *  Create all remaining control object variables
 263  *****************************************************************************/
 264 void input_ControlVarNavigation( input_thread_t *p_input )
 265 {
 266     vlc_value_t val, text;
 267     int  i;
 268
 269     /* Create more command variables */
 270     if( p_input->p->i_title > 1 )
 271     {
 272         var_Create( p_input, "next-title", VLC_VAR_VOID );
 273         text.psz_string = _("Next title");
 274         var_Change( p_input, "next-title", VLC_VAR_SETTEXT, &text, NULL );
 275         var_AddCallback( p_input, "next-title", TitleCallback, NULL );
 276
 277         var_Create( p_input, "prev-title", VLC_VAR_VOID );
 278         text.psz_string = _("Previous title");
 279         var_Change( p_input, "prev-title", VLC_VAR_SETTEXT, &text, NULL );
 280         var_AddCallback( p_input, "prev-title", TitleCallback, NULL );
 281     }
 282
 283     /* Create title and navigation */
 284     val.psz_string = malloc( sizeof("title ") + 5 );
 285     if( !val.psz_string )
 286         return;
 287
 288     for( i = 0; i < p_input->p->i_title; i++ )
 289     {
 290         vlc_value_t val2, text2;
 291         int j;
 292
 293         /* Add Navigation entries */
 294         sprintf( val.psz_string,  "title %2i", i );
 295         var_Destroy( p_input, val.psz_string );
 296         var_Create( p_input, val.psz_string,
 297                     VLC_VAR_INTEGER|VLC_VAR_HASCHOICE|VLC_VAR_ISCOMMAND );
 298         var_AddCallback( p_input, val.psz_string,
 299                          NavigationCallback, (void *)(intptr_t)i );
 300
 301         char psz_length[MSTRTIME_MAX_SIZE + sizeof(" []")] = "";
 302         if( p_input->p->title[i]->i_length > 0 )
 303         {
 304             strcpy( psz_length, " [" );
 305             secstotimestr( &psz_length[2], p_input->p->title[i]->i_length / CLOCK_FREQ );
 306             strcat( psz_length, "]" );
 307         }
 308
 309         if( p_input->p->title[i]->psz_name == NULL ||
 310             *p_input->p->title[i]->psz_name == '\0' )
 311         {
 312             if( asprintf( &text.psz_string, _("Title %i%s"),
 313                           i + p_input->p->i_title_offset, psz_length ) == -1 )
 314                 continue;
 315         }
 316         else
 317         {
 318             if( asprintf( &text.psz_string, "%s%s",
 319                           p_input->p->title[i]->psz_name, psz_length ) == -1 )
 320                 continue;
 321         }
 322         var_Change( p_input, "navigation", VLC_VAR_ADDCHOICE, &val, &text );
 323
 324         /* Add title choice */
 325         val2.i_int = i;
 326         var_Change( p_input, "title", VLC_VAR_ADDCHOICE, &val2, &text );
 327
 328         free( text.psz_string );
 329
 330         for( j = 0; j < p_input->p->title[i]->i_seekpoint; j++ )
 331         {
 332             val2.i_int = j;
 333
 334             if( p_input->p->title[i]->seekpoint[j]->psz_name == NULL ||
 335                 *p_input->p->title[i]->seekpoint[j]->psz_name == '\0' )
 336             {
 337                 /* Default value */
 338                 if( asprintf( &text2.psz_string, _("Chapter %i"),
 339                           j + p_input->p->i_seekpoint_offset ) == -1 )
 340                     continue;
 341             }
 342             else
 343             {
 344                 text2.psz_string =
 345                     strdup( p_input->p->title[i]->seekpoint[j]->psz_name );
 346             }
 347
 348             var_Change( p_input, val.psz_string, VLC_VAR_ADDCHOICE,
 349                         &val2, &text2 );
 350             free( text2.psz_string );
 351         }
 352
 353     }
 354     free( val.psz_string );
 355 }
 356
 357 /*****************************************************************************
 358  * input_ControlVarTitle:
 359  *  Create all variables for a title
 360  *****************************************************************************/
 361 void input_ControlVarTitle( input_thread_t *p_input, int i_title )
 362 {
 363     input_title_t *t = p_input->p->title[i_title];
 364     vlc_value_t text;
 365     int  i;
 366
 367     /* Create/Destroy command variables */
 368     if( t->i_seekpoint <= 1 )
 369     {
 370         var_Destroy( p_input, "next-chapter" );
 371         var_Destroy( p_input, "prev-chapter" );
 372     }
 373     else if( var_Type( p_input, "next-chapter" ) == 0 )
 374     {
 375         var_Create( p_input, "next-chapter", VLC_VAR_VOID );
 376         text.psz_string = _("Next chapter");
 377         var_Change( p_input, "next-chapter", VLC_VAR_SETTEXT, &text, NULL );
 378         var_AddCallback( p_input, "next-chapter", SeekpointCallback, NULL );
 379
 380         var_Create( p_input, "prev-chapter", VLC_VAR_VOID );
 381         text.psz_string = _("Previous chapter");
 382         var_Change( p_input, "prev-chapter", VLC_VAR_SETTEXT, &text, NULL );
 383         var_AddCallback( p_input, "prev-chapter", SeekpointCallback, NULL );
 384     }
 385
 386     /* Build chapter list */
 387     var_Change( p_input, "chapter", VLC_VAR_CLEARCHOICES, NULL, NULL );
 388     for( i = 0; i <  t->i_seekpoint; i++ )
 389     {
 390         vlc_value_t val;
 391         val.i_int = i;
 392
 393         if( t->seekpoint[i]->psz_name == NULL ||
 394             *t->seekpoint[i]->psz_name == '\0' )
 395         {
 396             /* Default value */
 397             if( asprintf( &text.psz_string, _("Chapter %i"),
 398                       i + p_input->p->i_seekpoint_offset ) == -1 )
 399                 continue;
 400         }
 401         else
 402         {
 403             text.psz_string = strdup( t->seekpoint[i]->psz_name );
 404         }
 405
 406         var_Change( p_input, "chapter", VLC_VAR_ADDCHOICE, &val, &text );
 407         free( text.psz_string );
 408     }
 409 }
 410
 411 /*****************************************************************************
 412  * input_ConfigVarInit:
 413  *  Create all config object variables
 414  *****************************************************************************/
 415 void input_ConfigVarInit ( input_thread_t *p_input )
 416 {
 417     /* Create Object Variables for private use only */
 418
 419     if( !p_input->b_preparsing )
 420     {
 421         var_Create( p_input, "video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 422         var_Create( p_input, "audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 423         var_Create( p_input, "spu", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 424
 425         var_Create( p_input, "audio-track", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 426         var_Create( p_input, "sub-track", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 427
 428         var_Create( p_input, "audio-language",
 429                     VLC_VAR_STRING|VLC_VAR_DOINHERIT );
 430         var_Create( p_input, "sub-language",
 431                     VLC_VAR_STRING|VLC_VAR_DOINHERIT );
 432
 433         var_Create( p_input, "audio-track-id",
 434                     VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 435         var_Create( p_input, "sub-track-id",
 436                     VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 437
 438         var_Create( p_input, "sub-file", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 439         var_Create( p_input, "sub-autodetect-file", VLC_VAR_BOOL |
 440                     VLC_VAR_DOINHERIT );
 441         var_Create( p_input, "sub-autodetect-path", VLC_VAR_STRING |
 442                     VLC_VAR_DOINHERIT );
 443         var_Create( p_input, "sub-autodetect-fuzzy", VLC_VAR_INTEGER |
 444                     VLC_VAR_DOINHERIT );
 445
 446         var_Create( p_input, "sout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 447         var_Create( p_input, "sout-all",   VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 448         var_Create( p_input, "sout-audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 449         var_Create( p_input, "sout-video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 450         var_Create( p_input, "sout-spu", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 451         var_Create( p_input, "sout-keep",  VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 452
 453         var_Create( p_input, "input-repeat",
 454                     VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 455         var_Create( p_input, "start-time", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT );
 456         var_Create( p_input, "stop-time", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT );
 457         var_Create( p_input, "run-time", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT );
 458         var_Create( p_input, "input-fast-seek", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 459
 460         var_Create( p_input, "input-slave",
 461                     VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 462
 463         var_Create( p_input, "audio-desync",
 464                     VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 465         var_Create( p_input, "cr-average",
 466                     VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 467         var_Create( p_input, "clock-synchro",
 468                     VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 469     }
 470
 471     var_Create( p_input, "can-seek", VLC_VAR_BOOL );
 472     var_SetBool( p_input, "can-seek", true ); /* Fixed later*/
 473
 474     var_Create( p_input, "can-pause", VLC_VAR_BOOL );
 475     var_SetBool( p_input, "can-pause", true ); /* Fixed later*/
 476
 477     var_Create( p_input, "can-rate", VLC_VAR_BOOL );
 478     var_SetBool( p_input, "can-rate", false );
 479
 480     var_Create( p_input, "can-rewind", VLC_VAR_BOOL );
 481     var_SetBool( p_input, "can-rewind", false );
 482
 483     var_Create( p_input, "can-record", VLC_VAR_BOOL );
 484     var_SetBool( p_input, "can-record", false ); /* Fixed later*/
 485
 486     var_Create( p_input, "record", VLC_VAR_BOOL );
 487     var_SetBool( p_input, "record", false );
 488
 489     var_Create( p_input, "teletext-es", VLC_VAR_INTEGER );
 490     var_SetInteger( p_input, "teletext-es", -1 );
 491
 492     var_Create( p_input, "signal-quality", VLC_VAR_FLOAT );
 493     var_SetFloat( p_input, "signal-quality", -1 );
 494
 495     var_Create( p_input, "signal-strength", VLC_VAR_FLOAT );
 496     var_SetFloat( p_input, "signal-strength", -1 );
 497
 498     var_Create( p_input, "program-scrambled", VLC_VAR_BOOL );
 499     var_SetBool( p_input, "program-scrambled", false );
 500
 501     var_Create( p_input, "cache", VLC_VAR_FLOAT );
 502     var_SetFloat( p_input, "cache", 0.0 );
 503
 504     /* */
 505     var_Create( p_input, "input-record-native", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 506
 507     /* */
 508     var_Create( p_input, "access", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 509     var_Create( p_input, "demux", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 510     var_Create( p_input, "stream-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 511
 512     /* Meta */
 513     var_Create( p_input, "meta-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 514     var_Create( p_input, "meta-author", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 515     var_Create( p_input, "meta-artist", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 516     var_Create( p_input, "meta-genre", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 517     var_Create( p_input, "meta-copyright", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 518     var_Create( p_input, "meta-description", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
 519     var_Create( p_input, "meta-date", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 520     var_Create( p_input, "meta-url", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 521 }
 522
 523 /*****************************************************************************
 524  * Callbacks managements:
 525  *****************************************************************************/
 526 static void InputAddCallbacks( input_thread_t *p_input,
 527                                const vlc_input_callback_t *p_callbacks )
 528 {
 529     int i;
 530     for( i = 0; p_callbacks[i].psz_name != NULL; i++ )
 531         var_AddCallback( p_input,
 532                          p_callbacks[i].psz_name,
 533                          p_callbacks[i].callback, NULL );
 534 }
 535
 536 static void InputDelCallbacks( input_thread_t *p_input,
 537                                const vlc_input_callback_t *p_callbacks )
 538 {
 539     int i;
 540     for( i = 0; p_callbacks[i].psz_name != NULL; i++ )
 541         var_DelCallback( p_input,
 542                          p_callbacks[i].psz_name,
 543                          p_callbacks[i].callback, NULL );
 544 }
 545
 546 /*****************************************************************************
 547  * All Callbacks:
 548  *****************************************************************************/
 549 static int StateCallback( vlc_object_t *p_this, char const *psz_cmd,
 550                           vlc_value_t oldval, vlc_value_t newval,
 551                           void *p_data )
 552 {
 553     input_thread_t *p_input = (input_thread_t*)p_this;
 554     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 555
 556     if( newval.i_int == PLAYING_S || newval.i_int == PAUSE_S )
 557     {
 558         input_ControlPush( p_input, INPUT_CONTROL_SET_STATE, &newval );
 559         return VLC_SUCCESS;
 560     }
 561
 562     return VLC_EGENERIC;
 563 }
 564
 565 static int RateCallback( vlc_object_t *p_this, char const *psz_cmd,
 566                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 567 {
 568     input_thread_t *p_input = (input_thread_t*)p_this;
 569     VLC_UNUSED(oldval); VLC_UNUSED(p_data); VLC_UNUSED(psz_cmd);
 570
 571     newval.i_int = INPUT_RATE_DEFAULT / newval.f_float;
 572     input_ControlPush( p_input, INPUT_CONTROL_SET_RATE, &newval );
 573
 574     return VLC_SUCCESS;
 575 }
 576
 577 static int PositionCallback( vlc_object_t *p_this, char const *psz_cmd,
 578                              vlc_value_t oldval, vlc_value_t newval,
 579                              void *p_data )
 580 {
 581     input_thread_t *p_input = (input_thread_t*)p_this;
 582     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 583
 584     if( !strcmp( psz_cmd, "position-offset" ) )
 585     {
 586         float f_position = var_GetFloat( p_input, "position" ) + newval.f_float;
 587         if( f_position < 0.0 )
 588             f_position = 0.0;
 589         else if( f_position > 1.0 )
 590             f_position = 1.0;
 591         var_SetFloat( p_this, "position", f_position );
 592     }
 593     else
 594     {
 595         /* Update "length" for better intf behavour */
 596         const mtime_t i_length = var_GetTime( p_input, "length" );
 597         if( i_length > 0 && newval.f_float >= 0.0 && newval.f_float <= 1.0 )
 598         {
 599             vlc_value_t val;
 600
 601             val.i_time = i_length * newval.f_float;
 602             var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
 603         }
 604
 605         /* */
 606         input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &newval );
 607     }
 608     return VLC_SUCCESS;
 609 }
 610
 611 static int TimeCallback( vlc_object_t *p_this, char const *psz_cmd,
 612                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 613 {
 614     input_thread_t *p_input = (input_thread_t*)p_this;
 615     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 616
 617     if( !strcmp( psz_cmd, "time-offset" ) )
 618     {
 619         mtime_t i_time = var_GetTime( p_input, "time" ) + newval.i_time;
 620         if( i_time < 0 )
 621             i_time = 0;
 622         var_SetTime( p_this, "time", i_time );
 623     }
 624     else
 625     {
 626         /* Update "position" for better intf behavour */
 627         const mtime_t i_length = var_GetTime( p_input, "length" );
 628         if( i_length > 0 && newval.i_time >= 0 && newval.i_time <= i_length )
 629         {
 630             vlc_value_t val;
 631
 632             val.f_float = (double)newval.i_time/(double)i_length;
 633             var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
 634             /*
 635              * Notify the intf that a new event has been occurred.
 636              * XXX this is a bit hackish but it's the only way to do it now.
 637              */
 638             var_SetInteger( p_input, "intf-event", INPUT_EVENT_POSITION );
 639         }
 640
 641         /* */
 642         input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &newval );
 643     }
 644     return VLC_SUCCESS;
 645 }
 646
 647 static int ProgramCallback( vlc_object_t *p_this, char const *psz_cmd,
 648                             vlc_value_t oldval, vlc_value_t newval,
 649                             void *p_data )
 650 {
 651     input_thread_t *p_input = (input_thread_t*)p_this;
 652     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 653
 654     input_ControlPush( p_input, INPUT_CONTROL_SET_PROGRAM, &newval );
 655
 656     return VLC_SUCCESS;
 657 }
 658
 659 static int TitleCallback( vlc_object_t *p_this, char const *psz_cmd,
 660                           vlc_value_t oldval, vlc_value_t newval,
 661                           void *p_data )
 662 {
 663     input_thread_t *p_input = (input_thread_t*)p_this;
 664     vlc_value_t val, count;
 665     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 666
 667     if( !strcmp( psz_cmd, "next-title" ) )
 668     {
 669         input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE_NEXT, NULL );
 670
 671         val.i_int = var_GetInteger( p_input, "title" ) + 1;
 672         var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &count, NULL );
 673         if( val.i_int < count.i_int )
 674             var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
 675     }
 676     else if( !strcmp( psz_cmd, "prev-title" ) )
 677     {
 678         input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE_PREV, NULL );
 679
 680         val.i_int = var_GetInteger( p_input, "title" ) - 1;
 681         if( val.i_int >= 0 )
 682             var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
 683     }
 684     else
 685     {
 686         input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &newval );
 687     }
 688
 689     return VLC_SUCCESS;
 690 }
 691
 692 static int SeekpointCallback( vlc_object_t *p_this, char const *psz_cmd,
 693                               vlc_value_t oldval, vlc_value_t newval,
 694                               void *p_data )
 695 {
 696     input_thread_t *p_input = (input_thread_t*)p_this;
 697     vlc_value_t val, count;
 698     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 699
 700     if( !strcmp( psz_cmd, "next-chapter" ) )
 701     {
 702         input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT_NEXT, NULL );
 703
 704         val.i_int = var_GetInteger( p_input, "chapter" ) + 1;
 705         var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &count, NULL );
 706         if( val.i_int < count.i_int )
 707             var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &val, NULL );
 708     }
 709     else if( !strcmp( psz_cmd, "prev-chapter" ) )
 710     {
 711         input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT_PREV, NULL );
 712
 713         val.i_int = var_GetInteger( p_input, "chapter" ) - 1;
 714         if( val.i_int >= 0 )
 715             var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &val, NULL );
 716     }
 717     else
 718     {
 719         input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &newval );
 720     }
 721
 722     return VLC_SUCCESS;
 723 }
 724
 725 static int NavigationCallback( vlc_object_t *p_this, char const *psz_cmd,
 726                                vlc_value_t oldval, vlc_value_t newval,
 727                                void *p_data )
 728 {
 729     input_thread_t *p_input = (input_thread_t*)p_this;
 730     vlc_value_t     val;
 731     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
 732
 733     /* Issue a title change */
 734     val.i_int = (intptr_t)p_data;
 735     input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );
 736
 737     var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
 738
 739     /* And a chapter change */
 740     input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &newval );
 741
 742     var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &newval, NULL );
 743
 744     return VLC_SUCCESS;
 745 }
 746
 747 static int ESCallback( vlc_object_t *p_this, char const *psz_cmd,
 748                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 749 {
 750     input_thread_t *p_input = (input_thread_t*)p_this;
 751     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 752
 753     if( newval.i_int < 0 )
 754     {
 755         vlc_value_t v;
 756         /* Hack */
 757         if( !strcmp( psz_cmd, "audio-es" ) )
 758             v.i_int = -AUDIO_ES;
 759         else if( !strcmp( psz_cmd, "video-es" ) )
 760             v.i_int = -VIDEO_ES;
 761         else if( !strcmp( psz_cmd, "spu-es" ) )
 762             v.i_int = -SPU_ES;
 763         else
 764             v.i_int = 0;
 765         if( v.i_int != 0 )
 766             input_ControlPush( p_input, INPUT_CONTROL_SET_ES, &v );
 767     }
 768     else
 769     {
 770         input_ControlPush( p_input, INPUT_CONTROL_SET_ES, &newval );
 771     }
 772
 773     return VLC_SUCCESS;
 774 }
 775
 776 static int EsDelayCallback ( vlc_object_t *p_this, char const *psz_cmd,
 777                              vlc_value_t oldval, vlc_value_t newval, void *p_data )
 778 {
 779     input_thread_t *p_input = (input_thread_t*)p_this;
 780     VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 781
 782     if( !strcmp( psz_cmd, "audio-delay" ) )
 783     {
 784         input_ControlPush( p_input, INPUT_CONTROL_SET_AUDIO_DELAY, &newval );
 785     }
 786     else if( !strcmp( psz_cmd, "spu-delay" ) )
 787     {
 788         input_ControlPush( p_input, INPUT_CONTROL_SET_SPU_DELAY, &newval );
 789     }
 790     return VLC_SUCCESS;
 791 }
 792
 793 static int BookmarkCallback( vlc_object_t *p_this, char const *psz_cmd,
 794                              vlc_value_t oldval, vlc_value_t newval,
 795                              void *p_data )
 796 {
 797     input_thread_t *p_input = (input_thread_t*)p_this;
 798     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 799
 800     input_ControlPush( p_input, INPUT_CONTROL_SET_BOOKMARK, &newval );
 801
 802     return VLC_SUCCESS;
 803 }
 804
 805 static int RecordCallback( vlc_object_t *p_this, char const *psz_cmd,
 806                            vlc_value_t oldval, vlc_value_t newval,
 807                            void *p_data )
 808 {
 809     input_thread_t *p_input = (input_thread_t*)p_this;
 810     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 811
 812     input_ControlPush( p_input, INPUT_CONTROL_SET_RECORD_STATE, &newval );
 813
 814     return VLC_SUCCESS;
 815 }
 816
 817 static int FrameNextCallback( vlc_object_t *p_this, char const *psz_cmd,
 818                               vlc_value_t oldval, vlc_value_t newval,
 819                               void *p_data )
 820 {
 821     input_thread_t *p_input = (input_thread_t*)p_this;
 822     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
 823     VLC_UNUSED(newval);
 824
 825     input_ControlPush( p_input, INPUT_CONTROL_SET_FRAME_NEXT, NULL );
 826
 827     return VLC_SUCCESS;
 828 }
 829