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

   1 /*****************************************************************************
   2  * control.c
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include <vlc/vlc.h>
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28
  29 #include "input_internal.h"
  30 #include "vlc_playlist.h"
  31
  32
  33 static void UpdateBookmarksOption( input_thread_t * );
  34 static void NotifyPlaylist( input_thread_t * );
  35
  36 /****************************************************************************
  37  * input_Control
  38  ****************************************************************************/
  39 /**
  40  * Control function for inputs.
  41  * \param p_input input handle
  42  * \param i_query query type
  43  * \return VLC_SUCCESS if ok
  44  */
  45 int input_Control( input_thread_t *p_input, int i_query, ...  )
  46 {
  47     va_list args;
  48     int     i_result;
  49
  50     va_start( args, i_query );
  51     i_result = input_vaControl( p_input, i_query, args );
  52     va_end( args );
  53
  54     return i_result;
  55 }
  56
  57 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  58 {
  59     seekpoint_t *p_bkmk, ***ppp_bkmk;
  60     int i_bkmk = 0;
  61     int *pi_bkmk;
  62
  63     int i_int, *pi_int;
  64     double f, *pf;
  65     int64_t i_64, *pi_64;
  66
  67     char *psz;
  68     vlc_value_t val;
  69
  70     switch( i_query )
  71     {
  72         case INPUT_GET_POSITION:
  73             pf = (double*)va_arg( args, double * );
  74             *pf = var_GetFloat( p_input, "position" );
  75             return VLC_SUCCESS;
  76
  77         case INPUT_SET_POSITION:
  78             f = (double)va_arg( args, double );
  79             return var_SetFloat( p_input, "position", f );
  80
  81         case INPUT_GET_LENGTH:
  82             pi_64 = (int64_t*)va_arg( args, int64_t * );
  83             *pi_64 = var_GetTime( p_input, "length" );
  84             return VLC_SUCCESS;
  85
  86         case INPUT_GET_TIME:
  87             pi_64 = (int64_t*)va_arg( args, int64_t * );
  88             *pi_64 = var_GetTime( p_input, "time" );
  89             return VLC_SUCCESS;
  90
  91         case INPUT_SET_TIME:
  92             i_64 = (int64_t)va_arg( args, int64_t );
  93             return var_SetTime( p_input, "time", i_64 );
  94
  95         case INPUT_GET_RATE:
  96             pi_int = (int*)va_arg( args, int * );
  97             *pi_int = var_GetInteger( p_input, "rate" );
  98             return VLC_SUCCESS;
  99
 100         case INPUT_SET_RATE:
 101             i_int = (int)va_arg( args, int );
 102             return var_SetInteger( p_input, "rate", i_int );
 103
 104         case INPUT_GET_STATE:
 105             pi_int = (int*)va_arg( args, int * );
 106             *pi_int = var_GetInteger( p_input, "state" );
 107             return VLC_SUCCESS;
 108
 109         case INPUT_SET_STATE:
 110             i_int = (int)va_arg( args, int );
 111             return var_SetInteger( p_input, "state", i_int );
 112
 113         case INPUT_GET_AUDIO_DELAY:
 114             pi_64 = (int64_t*)va_arg( args, int64_t * );
 115             *pi_64 = var_GetTime( p_input, "audio-delay" );
 116             return VLC_SUCCESS;
 117
 118         case INPUT_GET_SPU_DELAY:
 119             pi_64 = (int64_t*)va_arg( args, int64_t * );
 120             *pi_64 = var_GetTime( p_input, "spu-delay" );
 121             return VLC_SUCCESS;
 122
 123         case INPUT_SET_AUDIO_DELAY:
 124             i_64 = (int64_t)va_arg( args, int64_t );
 125             return var_SetTime( p_input, "audio-delay", i_64 );
 126
 127         case INPUT_SET_SPU_DELAY:
 128             i_64 = (int64_t)va_arg( args, int64_t );
 129             return var_SetTime( p_input, "spu-delay", i_64 );
 130
 131         case INPUT_ADD_INFO:
 132         {
 133             /* FIXME : Impossible to use input_ItemAddInfo because of
 134              * the ... problem ? */
 135             char *psz_cat = (char *)va_arg( args, char * );
 136             char *psz_name = (char *)va_arg( args, char * );
 137             char *psz_format = (char *)va_arg( args, char * );
 138
 139             info_category_t *p_cat;
 140             info_t *p_info;
 141             int i;
 142
 143             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 144             for( i = 0; i < p_input->p->input.p_item->i_categories; i++ )
 145             {
 146                 if( !strcmp( p_input->p->input.p_item->pp_categories[i]->psz_name,
 147                              psz_cat ) ) break;
 148             }
 149
 150             if( i == p_input->p->input.p_item->i_categories )
 151             {
 152                 p_cat = malloc( sizeof( info_category_t ) );
 153                 if( !p_cat )
 154                 {
 155                     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 156                     return VLC_EGENERIC;
 157                 }
 158                 p_cat->psz_name = strdup( psz_cat );
 159                 p_cat->i_infos = 0;
 160                 p_cat->pp_infos = NULL;
 161                 INSERT_ELEM( p_input->p->input.p_item->pp_categories,
 162                              p_input->p->input.p_item->i_categories,
 163                              p_input->p->input.p_item->i_categories, p_cat );
 164             }
 165
 166             p_cat = p_input->p->input.p_item->pp_categories[i];
 167
 168             for( i = 0; i < p_cat->i_infos; i++ )
 169             {
 170                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 171                 {
 172                     if( p_cat->pp_infos[i]->psz_value )
 173                         free( p_cat->pp_infos[i]->psz_value );
 174                     break;
 175                 }
 176             }
 177
 178             if( i == p_cat->i_infos )
 179             {
 180                 p_info = malloc( sizeof( info_t ) );
 181                 if( !p_info )
 182                 {
 183                     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 184                     return VLC_EGENERIC;
 185                 }
 186
 187                 INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos,
 188                              p_cat->i_infos, p_info );
 189                 p_info->psz_name = strdup( psz_name );
 190             }
 191
 192             p_info = p_cat->pp_infos[i];
 193             vasprintf( &p_info->psz_value, psz_format, args );
 194
 195             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 196
 197             if( !p_input->b_preparsing )
 198                 NotifyPlaylist( p_input );
 199         }
 200         return VLC_SUCCESS;
 201
 202         case INPUT_DEL_INFO:
 203         {
 204             char *psz_cat = (char *)va_arg( args, char * );
 205             char *psz_name = (char *)va_arg( args, char * );
 206
 207             info_category_t *p_cat = NULL;
 208             int i;
 209
 210             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 211             for( i = 0; i < p_input->p->input.p_item->i_categories; i++ )
 212             {
 213                 if( !strcmp( p_input->p->input.p_item->pp_categories[i]->psz_name,
 214                              psz_cat ) )
 215                 {
 216                     p_cat = p_input->p->input.p_item->pp_categories[i];
 217                     break;
 218                 }
 219             }
 220             if( p_cat == NULL )
 221             {
 222                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 223                 return VLC_EGENERIC;
 224             }
 225
 226             for( i = 0; i < p_cat->i_infos; i++ )
 227             {
 228                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 229                 {
 230                     free( p_cat->pp_infos[i]->psz_name );
 231                     if( p_cat->pp_infos[i]->psz_value )
 232                         free( p_cat->pp_infos[i]->psz_value );
 233                     free( p_cat->pp_infos[i] );
 234                     REMOVE_ELEM( p_cat->pp_infos, p_cat->i_infos, i );
 235                     break;
 236                 }
 237             }
 238             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 239
 240             if( i >= p_cat->i_infos )
 241                 return VLC_EGENERIC;
 242
 243             if( !p_input->b_preparsing )
 244                 NotifyPlaylist( p_input );
 245         }
 246         return VLC_SUCCESS;
 247
 248
 249         case INPUT_GET_INFO:
 250         {
 251             char *psz_cat = (char *)va_arg( args, char * );
 252             char *psz_name = (char *)va_arg( args, char * );
 253             char **ppsz_value = (char **)va_arg( args, char ** );
 254             int i_ret = VLC_EGENERIC;
 255             *ppsz_value = NULL;
 256
 257             *ppsz_value = input_ItemGetInfo( p_input->p->input.p_item,
 258                                                   psz_cat, psz_name );
 259             return i_ret;
 260         }
 261
 262         case INPUT_SET_NAME:
 263         {
 264             char *psz_name = (char *)va_arg( args, char * );
 265
 266             if( !psz_name ) return VLC_EGENERIC;
 267
 268             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 269             if( p_input->p->input.p_item->psz_name )
 270                 free( p_input->p->input.p_item->psz_name );
 271             p_input->p->input.p_item->psz_name = strdup( psz_name );
 272             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 273
 274             if( !p_input->b_preparsing )
 275                 NotifyPlaylist( p_input );
 276
 277             return VLC_SUCCESS;
 278         }
 279
 280         case INPUT_ADD_BOOKMARK:
 281             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 282             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 283
 284             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 285             if( !p_bkmk->psz_name )
 286             {
 287                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 288                            p_input->p->i_bookmark );
 289             }
 290
 291             TAB_APPEND( p_input->p->i_bookmark, p_input->p->bookmark, p_bkmk );
 292
 293             /* Reflect the changes on the object var */
 294             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 295             {
 296                 vlc_value_t val, text;
 297                 int i;
 298
 299                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 300                 {
 301                     val.i_int = i;
 302                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 303                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 304                                 &val, &text );
 305                 }
 306             }
 307             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 308
 309             UpdateBookmarksOption( p_input );
 310
 311             return VLC_SUCCESS;
 312
 313         case INPUT_CHANGE_BOOKMARK:
 314             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 315             i_bkmk = (int)va_arg( args, int );
 316
 317             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 318             if( i_bkmk < p_input->p->i_bookmark )
 319             {
 320                 vlc_value_t val, text;
 321                 int i;
 322
 323                 p_input->p->bookmark[i_bkmk] = p_bkmk;
 324
 325                 /* Reflect the changes on the object var */
 326                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 327                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 328                 {
 329                     val.i_int = i;
 330                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 331                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 332                                 &val, &text );
 333                 }
 334             }
 335             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 336
 337             UpdateBookmarksOption( p_input );
 338
 339             return VLC_SUCCESS;
 340
 341         case INPUT_DEL_BOOKMARK:
 342             i_bkmk = (int)va_arg( args, int );
 343
 344             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 345             if( i_bkmk < p_input->p->i_bookmark )
 346             {
 347                 vlc_value_t val, text;
 348                 int i;
 349
 350                 p_bkmk = p_input->p->bookmark[i_bkmk];
 351                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 352                             p_bkmk );
 353                 vlc_seekpoint_Delete( p_bkmk );
 354
 355                 /* Reflect the changes on the object var */
 356                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 357                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 358                 {
 359                     val.i_int = i;
 360                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 361                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 362                                 &val, &text );
 363                 }
 364                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 365
 366                 UpdateBookmarksOption( p_input );
 367
 368                 return VLC_SUCCESS;
 369             }
 370             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 371
 372             return VLC_EGENERIC;
 373
 374         case INPUT_GET_BOOKMARKS:
 375             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 376             pi_bkmk = (int *)va_arg( args, int * );
 377
 378             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 379             if( p_input->p->i_bookmark )
 380             {
 381                 int i;
 382
 383                 *pi_bkmk = p_input->p->i_bookmark;
 384                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 385                                     p_input->p->i_bookmark );
 386                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 387                 {
 388                     (*ppp_bkmk)[i] =
 389                         vlc_seekpoint_Duplicate(p_input->p->bookmark[i]);
 390                 }
 391
 392                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 393                 return VLC_SUCCESS;
 394             }
 395             else
 396             {
 397                 *ppp_bkmk = NULL;
 398                 *pi_bkmk = 0;
 399
 400                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 401                 return VLC_EGENERIC;
 402             }
 403             break;
 404
 405         case INPUT_CLEAR_BOOKMARKS:
 406
 407             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 408             if( p_input->p->i_bookmark )
 409             {
 410                 int i;
 411
 412                 for( i = p_input->p->i_bookmark - 1; i >= 0; i-- )
 413                 {
 414                     p_bkmk = p_input->p->bookmark[i];
 415                     TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 416                                 p_bkmk );
 417                     vlc_seekpoint_Delete( p_bkmk );
 418                 }
 419                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 420             }
 421             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 422
 423             UpdateBookmarksOption( p_input );
 424
 425             return VLC_SUCCESS;
 426
 427         case INPUT_SET_BOOKMARK:
 428             i_bkmk = (int)va_arg( args, int );
 429
 430             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 431             if( i_bkmk >= 0 && i_bkmk < p_input->p->i_bookmark )
 432             {
 433                 vlc_value_t pos;
 434                 int i_ret;
 435
 436                 if( p_input->p->bookmark[i_bkmk]->i_time_offset != -1 )
 437                 {
 438                     pos.i_time = p_input->p->bookmark[i_bkmk]->i_time_offset;
 439                     i_ret = var_Set( p_input, "time", pos );
 440                 }
 441                 else if( p_input->p->bookmark[i_bkmk]->i_byte_offset != -1 )
 442                 {
 443                     // don't crash on bookmarks in live streams
 444                     if( stream_Size( p_input->p->input.p_stream ) == 0 )
 445                     {
 446                         vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 447                         return VLC_EGENERIC;
 448                     }
 449                     pos.f_float = !p_input->p->input.p_stream ? 0 :
 450                         p_input->p->bookmark[i_bkmk]->i_byte_offset /
 451                         stream_Size( p_input->p->input.p_stream );
 452                     i_ret = var_Set( p_input, "position", pos );
 453                 }
 454                 else
 455                 {
 456                     pos.f_float = 0;
 457                     i_ret = var_Set( p_input, "position", pos );
 458                 }
 459
 460                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 461                 return i_ret;
 462             }
 463             else
 464             {
 465                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 466                 return VLC_EGENERIC;
 467             }
 468
 469             break;
 470
 471         case INPUT_ADD_OPTION:
 472         {
 473             char *psz_option = (char *)va_arg( args, char * );
 474             char *psz_value = (char *)va_arg( args, char * );
 475             int i;
 476
 477             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 478             /* Check if option already exists */
 479             for( i = 0; i < p_input->p->input.p_item->i_options; i++ )
 480             {
 481                 if( !strncmp( p_input->p->input.p_item->ppsz_options[i],
 482                               psz_option, strlen( psz_option ) ) &&
 483                     p_input->p->input.p_item->ppsz_options[i][strlen(psz_option)]
 484                       == '=' )
 485                 {
 486                     free( p_input->p->input.p_item->ppsz_options[i] );
 487                     break;
 488                 }
 489             }
 490             if( i == p_input->p->input.p_item->i_options )
 491             {
 492                 p_input->p->input.p_item->i_options++;
 493                 p_input->p->input.p_item->ppsz_options =
 494                     realloc( p_input->p->input.p_item->ppsz_options,
 495                              p_input->p->input.p_item->i_options *
 496                              sizeof(char **) );
 497             }
 498
 499             asprintf( &p_input->p->input.p_item->ppsz_options[i],
 500                       "%s=%s", psz_option, psz_value ) ;
 501             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 502
 503             return VLC_SUCCESS;
 504         }
 505
 506         case INPUT_GET_BYTE_POSITION:
 507             pi_64 = (int64_t*)va_arg( args, int64_t * );
 508             *pi_64 = !p_input->p->input.p_stream ? 0 :
 509                 stream_Tell( p_input->p->input.p_stream );
 510             return VLC_SUCCESS;
 511
 512         case INPUT_SET_BYTE_SIZE:
 513             pi_64 = (int64_t*)va_arg( args, int64_t * );
 514             *pi_64 = !p_input->p->input.p_stream ? 0 :
 515                 stream_Size( p_input->p->input.p_stream );
 516             return VLC_SUCCESS;
 517
 518         case INPUT_ADD_SLAVE:
 519             psz = (char*)va_arg( args, char * );
 520             if( psz && *psz )
 521             {
 522                 val.psz_string = strdup( psz );
 523                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 524             }
 525             return VLC_SUCCESS;
 526
 527         default:
 528             msg_Err( p_input, "unknown query in input_vaControl" );
 529             return VLC_EGENERIC;
 530     }
 531 }
 532
 533 static void NotifyPlaylist( input_thread_t *p_input )
 534 {
 535     playlist_t *p_playlist = pl_Yield( p_input );
 536     var_SetInteger( p_playlist, "item-change",
 537                     p_input->p->input.p_item->i_id );
 538     pl_Release( p_input );
 539 }
 540
 541 static void UpdateBookmarksOption( input_thread_t *p_input )
 542 {
 543     int i, i_len = 0;
 544     char *psz_value = NULL, *psz_next = NULL;
 545
 546     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 547     for( i = 0; i < p_input->p->i_bookmark; i++ )
 548     {
 549         asprintf( &psz_value, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 550                   p_input->p->bookmark[i]->psz_name,
 551                   p_input->p->bookmark[i]->i_byte_offset,
 552                   p_input->p->bookmark[i]->i_time_offset/1000000 );
 553         i_len += strlen( psz_value );
 554         free( psz_value );
 555     }
 556     for( i = 0; i < p_input->p->i_bookmark; i++ )
 557     {
 558         if( !i ) psz_value = psz_next = malloc( i_len + p_input->p->i_bookmark );
 559
 560         sprintf( psz_next, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 561                  p_input->p->bookmark[i]->psz_name,
 562                  p_input->p->bookmark[i]->i_byte_offset,
 563                  p_input->p->bookmark[i]->i_time_offset/1000000 );
 564
 565         psz_next += strlen( psz_next );
 566         if( i < p_input->p->i_bookmark - 1)
 567         {
 568             *psz_next = ','; psz_next++;
 569         }
 570     }
 571     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 572
 573     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 574                    psz_value ? psz_value : "" );
 575 }