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