git.sesse.net Git - vlc/blob - src/input/control.c

   1 /*****************************************************************************
   2  * control.c
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdlib.h>
  25 #include <vlc/vlc.h>
  26 #include <vlc/input.h>
  27
  28 #include "input_internal.h"
  29 #include "vlc_playlist.h"
  30
  31
  32 static void UpdateBookmarksOption( input_thread_t * );
  33 static void NotifyPlaylist( input_thread_t * );
  34
  35 /****************************************************************************
  36  * input_Control
  37  ****************************************************************************/
  38 /**
  39  * Control function for inputs.
  40  * \param p_input input handle
  41  * \param i_query query type
  42  * \return VLC_SUCCESS if ok
  43  */
  44 int input_Control( input_thread_t *p_input, int i_query, ...  )
  45 {
  46     va_list args;
  47     int     i_result;
  48
  49     va_start( args, i_query );
  50     i_result = input_vaControl( p_input, i_query, args );
  51     va_end( args );
  52
  53     return i_result;
  54 }
  55
  56 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  57 {
  58     seekpoint_t *p_bkmk, ***ppp_bkmk;
  59     int i_bkmk = 0;
  60     int *pi_bkmk;
  61
  62     int i_int, *pi_int;
  63     double f, *pf;
  64     int64_t i_64, *pi_64;
  65
  66     char *psz;
  67     vlc_value_t val;
  68
  69     switch( i_query )
  70     {
  71         case INPUT_GET_POSITION:
  72             pf = (double*)va_arg( args, double * );
  73             *pf = var_GetFloat( p_input, "position" );
  74             return VLC_SUCCESS;
  75
  76         case INPUT_SET_POSITION:
  77             f = (double)va_arg( args, double );
  78             return var_SetFloat( p_input, "position", f );
  79
  80         case INPUT_GET_LENGTH:
  81             pi_64 = (int64_t*)va_arg( args, int64_t * );
  82             *pi_64 = var_GetTime( p_input, "length" );
  83             return VLC_SUCCESS;
  84
  85         case INPUT_GET_TIME:
  86             pi_64 = (int64_t*)va_arg( args, int64_t * );
  87             *pi_64 = var_GetTime( p_input, "time" );
  88             return VLC_SUCCESS;
  89
  90         case INPUT_SET_TIME:
  91             i_64 = (int64_t)va_arg( args, int64_t );
  92             return var_SetTime( p_input, "time", i_64 );
  93
  94         case INPUT_GET_RATE:
  95             pi_int = (int*)va_arg( args, int * );
  96             *pi_int = var_GetInteger( p_input, "rate" );
  97             return VLC_SUCCESS;
  98
  99         case INPUT_SET_RATE:
 100             i_int = (int)va_arg( args, int );
 101             return var_SetInteger( p_input, "rate", i_int );
 102
 103         case INPUT_GET_STATE:
 104             pi_int = (int*)va_arg( args, int * );
 105             *pi_int = var_GetInteger( p_input, "state" );
 106             return VLC_SUCCESS;
 107
 108         case INPUT_SET_STATE:
 109             i_int = (int)va_arg( args, int );
 110             return var_SetInteger( p_input, "state", i_int );
 111
 112         case INPUT_GET_AUDIO_DELAY:
 113             pi_64 = (int64_t*)va_arg( args, int64_t * );
 114             *pi_64 = var_GetTime( p_input, "audio-delay" );
 115             return VLC_SUCCESS;
 116
 117         case INPUT_GET_SPU_DELAY:
 118             pi_64 = (int64_t*)va_arg( args, int64_t * );
 119             *pi_64 = var_GetTime( p_input, "spu-delay" );
 120             return VLC_SUCCESS;
 121
 122         case INPUT_SET_AUDIO_DELAY:
 123             i_64 = (int64_t)va_arg( args, int64_t );
 124             return var_SetTime( p_input, "audio-delay", i_64 );
 125
 126         case INPUT_SET_SPU_DELAY:
 127             i_64 = (int64_t)va_arg( args, int64_t );
 128             return var_SetTime( p_input, "spu-delay", i_64 );
 129
 130         case INPUT_ADD_INFO:
 131         {
 132             /* FIXME : Impossible to use vlc_input_item_AddInfo because of
 133              * the ... problem ? */
 134             char *psz_cat = (char *)va_arg( args, char * );
 135             char *psz_name = (char *)va_arg( args, char * );
 136             char *psz_format = (char *)va_arg( args, char * );
 137
 138             info_category_t *p_cat;
 139             info_t *p_info;
 140             int i;
 141
 142             vlc_mutex_lock( &p_input->input.p_item->lock );
 143             for( i = 0; i < p_input->input.p_item->i_categories; i++ )
 144             {
 145                 if( !strcmp( p_input->input.p_item->pp_categories[i]->psz_name,
 146                              psz_cat ) ) break;
 147             }
 148
 149             if( i == p_input->input.p_item->i_categories )
 150             {
 151                 p_cat = malloc( sizeof( info_category_t ) );
 152                 if( !p_cat )
 153                 {
 154                     vlc_mutex_lock( &p_input->input.p_item->lock );
 155                     return VLC_EGENERIC;
 156                 }
 157                 p_cat->psz_name = strdup( psz_cat );
 158                 p_cat->i_infos = 0;
 159                 p_cat->pp_infos = NULL;
 160                 INSERT_ELEM( p_input->input.p_item->pp_categories,
 161                              p_input->input.p_item->i_categories,
 162                              p_input->input.p_item->i_categories, p_cat );
 163             }
 164
 165             p_cat = p_input->input.p_item->pp_categories[i];
 166
 167             for( i = 0; i < p_cat->i_infos; i++ )
 168             {
 169                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 170                 {
 171                     if( p_cat->pp_infos[i]->psz_value )
 172                         free( p_cat->pp_infos[i]->psz_value );
 173                     break;
 174                 }
 175             }
 176
 177             if( i == p_cat->i_infos )
 178             {
 179                 p_info = malloc( sizeof( info_t ) );
 180                 if( !p_info )
 181                 {
 182                     vlc_mutex_lock( &p_input->input.p_item->lock );
 183                     return VLC_EGENERIC;
 184                 }
 185
 186                 INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos,
 187                              p_cat->i_infos, p_info );
 188                 p_info->psz_name = strdup( psz_name );
 189             }
 190
 191             p_info = p_cat->pp_infos[i];
 192             vasprintf( &p_info->psz_value, psz_format, args );
 193
 194             vlc_mutex_unlock( &p_input->input.p_item->lock );
 195
 196             NotifyPlaylist( p_input );
 197         }
 198         return VLC_SUCCESS;
 199         case INPUT_DEL_INFO:
 200         {
 201             char *psz_cat = (char *)va_arg( args, char * );
 202             char *psz_name = (char *)va_arg( args, char * );
 203
 204             info_category_t *p_cat = NULL;
 205             int i;
 206
 207             vlc_mutex_lock( &p_input->input.p_item->lock );
 208             for( i = 0; i < p_input->input.p_item->i_categories; i++ )
 209             {
 210                 if( !strcmp( p_input->input.p_item->pp_categories[i]->psz_name,
 211                              psz_cat ) )
 212                 {
 213                     p_cat = p_input->input.p_item->pp_categories[i];
 214                     break;
 215                 }
 216             }
 217             if( p_cat == NULL )
 218             {
 219                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 220                 return VLC_EGENERIC;
 221             }
 222
 223             for( i = 0; i < p_cat->i_infos; i++ )
 224             {
 225                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 226                 {
 227                     REMOVE_ELEM( p_cat->pp_infos, p_cat->i_infos, i );
 228                     break;
 229                 }
 230             }
 231             vlc_mutex_unlock( &p_input->input.p_item->lock );
 232
 233             if( i >= p_cat->i_infos )
 234                 return VLC_EGENERIC;
 235
 236             NotifyPlaylist( p_input );
 237         }
 238         return VLC_SUCCESS;
 239
 240
 241         case INPUT_GET_INFO:
 242         {
 243             char *psz_cat = (char *)va_arg( args, char * );
 244             char *psz_name = (char *)va_arg( args, char * );
 245             char **ppsz_value = (char **)va_arg( args, char ** );
 246             int i_ret = VLC_EGENERIC;
 247             *ppsz_value = NULL;
 248
 249             *ppsz_value = vlc_input_item_GetInfo( p_input->input.p_item,
 250                                                   psz_cat, psz_name );
 251             return i_ret;
 252         }
 253
 254         case INPUT_SET_NAME:
 255         {
 256             char *psz_name = (char *)va_arg( args, char * );
 257
 258             if( !psz_name ) return VLC_EGENERIC;
 259
 260             vlc_mutex_lock( &p_input->input.p_item->lock );
 261             if( p_input->input.p_item->psz_name )
 262                 free( p_input->input.p_item->psz_name );
 263             p_input->input.p_item->psz_name = strdup( psz_name );
 264             vlc_mutex_unlock( &p_input->input.p_item->lock );
 265
 266             NotifyPlaylist( p_input );
 267
 268             return VLC_SUCCESS;
 269         }
 270
 271         case INPUT_ADD_BOOKMARK:
 272             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 273             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 274
 275             vlc_mutex_lock( &p_input->input.p_item->lock );
 276             if( !p_bkmk->psz_name )
 277             {
 278                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 279                            p_input->i_bookmark );
 280             }
 281
 282             TAB_APPEND( p_input->i_bookmark, p_input->bookmark, p_bkmk );
 283
 284             /* Reflect the changes on the object var */
 285             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 286             {
 287                 vlc_value_t val, text;
 288                 int i;
 289
 290                 for( i = 0; i < p_input->i_bookmark; i++ )
 291                 {
 292                     val.i_int = i;
 293                     text.psz_string = p_input->bookmark[i]->psz_name;
 294                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 295                                 &val, &text );
 296                 }
 297             }
 298             vlc_mutex_unlock( &p_input->input.p_item->lock );
 299
 300             UpdateBookmarksOption( p_input );
 301
 302             return VLC_SUCCESS;
 303
 304         case INPUT_CHANGE_BOOKMARK:
 305             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 306             i_bkmk = (int)va_arg( args, int );
 307
 308             vlc_mutex_lock( &p_input->input.p_item->lock );
 309             if( i_bkmk < p_input->i_bookmark )
 310             {
 311                 vlc_value_t val, text;
 312                 int i;
 313
 314                 p_input->bookmark[i_bkmk] = p_bkmk;
 315
 316                 /* Reflect the changes on the object var */
 317                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 318                 for( i = 0; i < p_input->i_bookmark; i++ )
 319                 {
 320                     val.i_int = i;
 321                     text.psz_string = p_input->bookmark[i]->psz_name;
 322                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 323                                 &val, &text );
 324                 }
 325             }
 326             vlc_mutex_unlock( &p_input->input.p_item->lock );
 327
 328             UpdateBookmarksOption( p_input );
 329
 330             return VLC_SUCCESS;
 331
 332         case INPUT_DEL_BOOKMARK:
 333             i_bkmk = (int)va_arg( args, int );
 334
 335             vlc_mutex_lock( &p_input->input.p_item->lock );
 336             if( i_bkmk < p_input->i_bookmark )
 337             {
 338                 vlc_value_t val, text;
 339                 int i;
 340
 341                 p_bkmk = p_input->bookmark[i_bkmk];
 342                 TAB_REMOVE( p_input->i_bookmark, p_input->bookmark,
 343                             p_bkmk );
 344                 vlc_seekpoint_Delete( p_bkmk );
 345
 346                 /* Reflect the changes on the object var */
 347                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 348                 for( i = 0; i < p_input->i_bookmark; i++ )
 349                 {
 350                     val.i_int = i;
 351                     text.psz_string = p_input->bookmark[i]->psz_name;
 352                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 353                                 &val, &text );
 354                 }
 355                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 356
 357                 UpdateBookmarksOption( p_input );
 358
 359                 return VLC_SUCCESS;
 360             }
 361             vlc_mutex_unlock( &p_input->input.p_item->lock );
 362
 363             return VLC_EGENERIC;
 364
 365         case INPUT_GET_BOOKMARKS:
 366             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 367             pi_bkmk = (int *)va_arg( args, int * );
 368
 369             vlc_mutex_lock( &p_input->input.p_item->lock );
 370             if( p_input->i_bookmark )
 371             {
 372                 int i;
 373
 374                 *pi_bkmk = p_input->i_bookmark;
 375                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 376                                     p_input->i_bookmark );
 377                 for( i = 0; i < p_input->i_bookmark; i++ )
 378                 {
 379                     (*ppp_bkmk)[i] =
 380                         vlc_seekpoint_Duplicate(p_input->bookmark[i]);
 381                 }
 382
 383                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 384                 return VLC_SUCCESS;
 385             }
 386             else
 387             {
 388                 *ppp_bkmk = NULL;
 389                 *pi_bkmk = 0;
 390
 391                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 392                 return VLC_EGENERIC;
 393             }
 394             break;
 395
 396         case INPUT_CLEAR_BOOKMARKS:
 397
 398             vlc_mutex_lock( &p_input->input.p_item->lock );
 399             if( p_input->i_bookmark )
 400             {
 401                 int i;
 402
 403                 for( i = p_input->i_bookmark - 1; i >= 0; i-- )
 404                 {
 405                     p_bkmk = p_input->bookmark[i];
 406                     TAB_REMOVE( p_input->i_bookmark, p_input->bookmark,
 407                                 p_bkmk );
 408                     vlc_seekpoint_Delete( p_bkmk );
 409                 }
 410                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 411             }
 412             vlc_mutex_unlock( &p_input->input.p_item->lock );
 413
 414             UpdateBookmarksOption( p_input );
 415
 416             return VLC_SUCCESS;
 417
 418         case INPUT_SET_BOOKMARK:
 419             i_bkmk = (int)va_arg( args, int );
 420
 421             vlc_mutex_lock( &p_input->input.p_item->lock );
 422             if( i_bkmk >= 0 && i_bkmk < p_input->i_bookmark )
 423             {
 424                 vlc_value_t pos;
 425                 int i_ret;
 426
 427                 if( p_input->bookmark[i_bkmk]->i_time_offset != -1 )
 428                 {
 429                     pos.i_time = p_input->bookmark[i_bkmk]->i_time_offset;
 430                     i_ret = var_Set( p_input, "time", pos );
 431                 }
 432                 else if( p_input->bookmark[i_bkmk]->i_byte_offset != -1 )
 433                 {
 434                     // don't crash on bookmarks in live streams
 435                     if( stream_Size( p_input->input.p_stream ) == 0 )
 436                     {
 437                         vlc_mutex_unlock( &p_input->input.p_item->lock );
 438                         return VLC_EGENERIC;
 439                     }
 440                     pos.f_float = !p_input->input.p_stream ? 0 :
 441                         p_input->bookmark[i_bkmk]->i_byte_offset /
 442                         stream_Size( p_input->input.p_stream );
 443                     i_ret = var_Set( p_input, "position", pos );
 444                 }
 445                 else
 446                 {
 447                     pos.f_float = 0;
 448                     i_ret = var_Set( p_input, "position", pos );
 449                 }
 450
 451                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 452                 return i_ret;
 453             }
 454             else
 455             {
 456                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 457                 return VLC_EGENERIC;
 458             }
 459
 460             break;
 461
 462         case INPUT_ADD_OPTION:
 463         {
 464             char *psz_option = (char *)va_arg( args, char * );
 465             char *psz_value = (char *)va_arg( args, char * );
 466             int i;
 467
 468             vlc_mutex_lock( &p_input->input.p_item->lock );
 469             /* Check if option already exists */
 470             for( i = 0; i < p_input->input.p_item->i_options; i++ )
 471             {
 472                 if( !strncmp( p_input->input.p_item->ppsz_options[i],
 473                               psz_option, strlen( psz_option ) ) &&
 474                     p_input->input.p_item->ppsz_options[i][strlen(psz_option)]
 475                       == '=' )
 476                 {
 477                     free( p_input->input.p_item->ppsz_options[i] );
 478                     break;
 479                 }
 480             }
 481             if( i == p_input->input.p_item->i_options )
 482             {
 483                 p_input->input.p_item->i_options++;
 484                 p_input->input.p_item->ppsz_options =
 485                     realloc( p_input->input.p_item->ppsz_options,
 486                              p_input->input.p_item->i_options *
 487                              sizeof(char **) );
 488             }
 489
 490             asprintf( &p_input->input.p_item->ppsz_options[i],
 491                       "%s=%s", psz_option, psz_value ) ;
 492             vlc_mutex_unlock( &p_input->input.p_item->lock );
 493
 494             return VLC_SUCCESS;
 495         }
 496
 497         case INPUT_GET_BYTE_POSITION:
 498             pi_64 = (int64_t*)va_arg( args, int64_t * );
 499             *pi_64 = !p_input->input.p_stream ? 0 :
 500                 stream_Tell( p_input->input.p_stream );
 501             return VLC_SUCCESS;
 502
 503         case INPUT_SET_BYTE_SIZE:
 504             pi_64 = (int64_t*)va_arg( args, int64_t * );
 505             *pi_64 = !p_input->input.p_stream ? 0 :
 506                 stream_Size( p_input->input.p_stream );
 507             return VLC_SUCCESS;
 508
 509         case INPUT_ADD_SLAVE:
 510             psz = (char*)va_arg( args, char * );
 511             if( psz && *psz )
 512             {
 513                 val.psz_string = strdup( psz );
 514                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 515             }
 516             return VLC_SUCCESS;
 517
 518         default:
 519             msg_Err( p_input, "unknown query in input_vaControl" );
 520             return VLC_EGENERIC;
 521     }
 522 }
 523
 524 static void NotifyPlaylist( input_thread_t *p_input )
 525 {
 526     playlist_t *p_playlist =
 527         (playlist_t *)vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
 528                                        FIND_PARENT );
 529     if( p_playlist )
 530     {
 531         var_SetInteger( p_playlist, "item-change", p_playlist->i_index );
 532         vlc_object_release( p_playlist );
 533     }
 534 }
 535
 536 static void UpdateBookmarksOption( input_thread_t *p_input )
 537 {
 538     int i, i_len = 0;
 539     char *psz_value = NULL, *psz_next = NULL;
 540
 541     vlc_mutex_lock( &p_input->input.p_item->lock );
 542     for( i = 0; i < p_input->i_bookmark; i++ )
 543     {
 544         asprintf( &psz_value, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 545                   p_input->bookmark[i]->psz_name,
 546                   p_input->bookmark[i]->i_byte_offset,
 547                   p_input->bookmark[i]->i_time_offset/1000000 );
 548         i_len += strlen( psz_value );
 549         free( psz_value );
 550     }
 551     for( i = 0; i < p_input->i_bookmark; i++ )
 552     {
 553         if( !i ) psz_value = psz_next = malloc( i_len + p_input->i_bookmark );
 554
 555         sprintf( psz_next, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 556                  p_input->bookmark[i]->psz_name,
 557                  p_input->bookmark[i]->i_byte_offset,
 558                  p_input->bookmark[i]->i_time_offset/1000000 );
 559
 560         psz_next += strlen( psz_next );
 561         if( i < p_input->i_bookmark - 1)
 562         {
 563             *psz_next = ','; psz_next++;
 564         }
 565     }
 566     vlc_mutex_unlock( &p_input->input.p_item->lock );
 567
 568     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 569                    psz_value ? psz_value : "" );
 570 }