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

   1 /*****************************************************************************
   2  * control.c
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 VLC authors and 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 it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <vlc_common.h>
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <assert.h>
  33
  34 #include "input_internal.h"
  35 #include "event.h"
  36 #include "resource.h"
  37 #include "es_out.h"
  38
  39 typedef enum input_es_state_e input_es_state_e;
  40
  41 static void UpdateBookmarksOption( input_thread_t * );
  42
  43 /****************************************************************************
  44  * input_Control
  45  ****************************************************************************/
  46 /**
  47  * Control function for inputs.
  48  * \param p_input input handle
  49  * \param i_query query type
  50  * \return VLC_SUCCESS if ok
  51  */
  52 int input_Control( input_thread_t *p_input, int i_query, ...  )
  53 {
  54     va_list args;
  55     int     i_result;
  56
  57     va_start( args, i_query );
  58     i_result = input_vaControl( p_input, i_query, args );
  59     va_end( args );
  60
  61     return i_result;
  62 }
  63
  64 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  65 {
  66     seekpoint_t *p_bkmk, ***ppp_bkmk;
  67     int i_bkmk = 0;
  68     int *pi_bkmk;
  69
  70     int i_int, *pi_int;
  71     bool b_bool, *pb_bool;
  72     double f, *pf;
  73     int64_t i_64, *pi_64;
  74
  75     char *psz;
  76     vlc_value_t val;
  77
  78     switch( i_query )
  79     {
  80         case INPUT_GET_POSITION:
  81             pf = (double*)va_arg( args, double * );
  82             *pf = var_GetFloat( p_input, "position" );
  83             return VLC_SUCCESS;
  84
  85         case INPUT_SET_POSITION:
  86             f = (double)va_arg( args, double );
  87             return var_SetFloat( p_input, "position", f );
  88
  89         case INPUT_GET_LENGTH:
  90             pi_64 = (int64_t*)va_arg( args, int64_t * );
  91             *pi_64 = var_GetTime( p_input, "length" );
  92             return VLC_SUCCESS;
  93
  94         case INPUT_GET_TIME:
  95             pi_64 = (int64_t*)va_arg( args, int64_t * );
  96             *pi_64 = var_GetTime( p_input, "time" );
  97             return VLC_SUCCESS;
  98
  99         case INPUT_SET_TIME:
 100             i_64 = (int64_t)va_arg( args, int64_t );
 101             return var_SetTime( p_input, "time", i_64 );
 102
 103         case INPUT_GET_RATE:
 104             pi_int = (int*)va_arg( args, int * );
 105             *pi_int = INPUT_RATE_DEFAULT / var_GetFloat( p_input, "rate" );
 106             return VLC_SUCCESS;
 107
 108         case INPUT_SET_RATE:
 109             i_int = (int)va_arg( args, int );
 110             return var_SetFloat( p_input, "rate",
 111                                  (float)INPUT_RATE_DEFAULT / (float)i_int );
 112
 113         case INPUT_GET_STATE:
 114             pi_int = (int*)va_arg( args, int * );
 115             *pi_int = var_GetInteger( p_input, "state" );
 116             return VLC_SUCCESS;
 117
 118         case INPUT_SET_STATE:
 119             i_int = (int)va_arg( args, int );
 120             return var_SetInteger( p_input, "state", i_int );
 121
 122         case INPUT_GET_AUDIO_DELAY:
 123             pi_64 = (int64_t*)va_arg( args, int64_t * );
 124             *pi_64 = var_GetTime( p_input, "audio-delay" );
 125             return VLC_SUCCESS;
 126
 127         case INPUT_GET_SPU_DELAY:
 128             pi_64 = (int64_t*)va_arg( args, int64_t * );
 129             *pi_64 = var_GetTime( p_input, "spu-delay" );
 130             return VLC_SUCCESS;
 131
 132         case INPUT_SET_AUDIO_DELAY:
 133             i_64 = (int64_t)va_arg( args, int64_t );
 134             return var_SetTime( p_input, "audio-delay", i_64 );
 135
 136         case INPUT_SET_SPU_DELAY:
 137             i_64 = (int64_t)va_arg( args, int64_t );
 138             return var_SetTime( p_input, "spu-delay", i_64 );
 139
 140         case INPUT_NAV_ACTIVATE:
 141         case INPUT_NAV_UP:
 142         case INPUT_NAV_DOWN:
 143         case INPUT_NAV_LEFT:
 144         case INPUT_NAV_RIGHT:
 145             input_ControlPush( p_input, i_query - INPUT_NAV_ACTIVATE
 146                                + INPUT_CONTROL_NAV_ACTIVATE, NULL );
 147             return VLC_SUCCESS;
 148
 149         case INPUT_ADD_INFO:
 150         {
 151             char *psz_cat = (char *)va_arg( args, char * );
 152             char *psz_name = (char *)va_arg( args, char * );
 153             char *psz_format = (char *)va_arg( args, char * );
 154
 155             char *psz_value;
 156
 157             if( vasprintf( &psz_value, psz_format, args ) == -1 )
 158                 return VLC_EGENERIC;
 159
 160             int i_ret = input_item_AddInfo( p_input->p->p_item,
 161                                             psz_cat, psz_name, "%s", psz_value );
 162             free( psz_value );
 163
 164             if( !p_input->b_preparsing && !i_ret )
 165                 input_SendEventMetaInfo( p_input );
 166             return i_ret;
 167         }
 168         case INPUT_REPLACE_INFOS:
 169         case INPUT_MERGE_INFOS:
 170         {
 171             info_category_t *p_cat = va_arg( args, info_category_t * );
 172
 173             if( i_query == INPUT_REPLACE_INFOS )
 174                 input_item_ReplaceInfos( p_input->p->p_item, p_cat );
 175             else
 176                 input_item_MergeInfos( p_input->p->p_item, p_cat );
 177
 178             if( !p_input->b_preparsing )
 179                 input_SendEventMetaInfo( p_input );
 180             return VLC_SUCCESS;
 181         }
 182         case INPUT_DEL_INFO:
 183         {
 184             char *psz_cat = (char *)va_arg( args, char * );
 185             char *psz_name = (char *)va_arg( args, char * );
 186
 187             int i_ret = input_item_DelInfo( p_input->p->p_item,
 188                                             psz_cat, psz_name );
 189
 190             if( !p_input->b_preparsing && !i_ret )
 191                 input_SendEventMetaInfo( p_input );
 192             return i_ret;
 193         }
 194         case INPUT_GET_INFO:
 195         {
 196             char *psz_cat = (char *)va_arg( args, char * );
 197             char *psz_name = (char *)va_arg( args, char * );
 198             char **ppsz_value = (char **)va_arg( args, char ** );
 199             int i_ret = VLC_EGENERIC;
 200             *ppsz_value = NULL;
 201
 202             *ppsz_value = input_item_GetInfo( p_input->p->p_item,
 203                                                   psz_cat, psz_name );
 204             return i_ret;
 205         }
 206
 207         case INPUT_SET_NAME:
 208         {
 209             char *psz_name = (char *)va_arg( args, char * );
 210
 211             if( !psz_name ) return VLC_EGENERIC;
 212
 213             input_item_SetName( p_input->p->p_item, psz_name );
 214
 215             if( !p_input->b_preparsing )
 216                 input_SendEventMetaName( p_input, psz_name );
 217             return VLC_SUCCESS;
 218         }
 219
 220         case INPUT_ADD_BOOKMARK:
 221             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 222             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 223
 224             vlc_mutex_lock( &p_input->p->p_item->lock );
 225             if( !p_bkmk->psz_name )
 226             {
 227                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 228                                p_input->p->i_bookmark ) == -1 )
 229                      p_bkmk->psz_name = NULL;
 230             }
 231
 232             TAB_APPEND( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 233             vlc_mutex_unlock( &p_input->p->p_item->lock );
 234
 235             UpdateBookmarksOption( p_input );
 236
 237             return VLC_SUCCESS;
 238
 239         case INPUT_CHANGE_BOOKMARK:
 240             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 241             i_bkmk = (int)va_arg( args, int );
 242
 243             vlc_mutex_lock( &p_input->p->p_item->lock );
 244             if( i_bkmk < p_input->p->i_bookmark )
 245             {
 246                 vlc_seekpoint_Delete( p_input->p->pp_bookmark[i_bkmk] );
 247                 p_input->p->pp_bookmark[i_bkmk] = vlc_seekpoint_Duplicate( p_bkmk );
 248             }
 249             vlc_mutex_unlock( &p_input->p->p_item->lock );
 250
 251             UpdateBookmarksOption( p_input );
 252
 253             return VLC_SUCCESS;
 254
 255         case INPUT_DEL_BOOKMARK:
 256             i_bkmk = (int)va_arg( args, int );
 257
 258             vlc_mutex_lock( &p_input->p->p_item->lock );
 259             if( i_bkmk < p_input->p->i_bookmark )
 260             {
 261                 p_bkmk = p_input->p->pp_bookmark[i_bkmk];
 262                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 263                 vlc_seekpoint_Delete( p_bkmk );
 264
 265                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 266
 267                 UpdateBookmarksOption( p_input );
 268
 269                 return VLC_SUCCESS;
 270             }
 271             vlc_mutex_unlock( &p_input->p->p_item->lock );
 272
 273             return VLC_EGENERIC;
 274
 275         case INPUT_GET_BOOKMARKS:
 276             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 277             pi_bkmk = (int *)va_arg( args, int * );
 278
 279             vlc_mutex_lock( &p_input->p->p_item->lock );
 280             if( p_input->p->i_bookmark )
 281             {
 282                 int i;
 283
 284                 *pi_bkmk = p_input->p->i_bookmark;
 285                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 286                                     p_input->p->i_bookmark );
 287                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 288                 {
 289                     (*ppp_bkmk)[i] =
 290                         vlc_seekpoint_Duplicate( p_input->p->pp_bookmark[i] );
 291                 }
 292
 293                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 294                 return VLC_SUCCESS;
 295             }
 296             else
 297             {
 298                 *ppp_bkmk = NULL;
 299                 *pi_bkmk = 0;
 300
 301                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 302                 return VLC_EGENERIC;
 303             }
 304             break;
 305
 306         case INPUT_CLEAR_BOOKMARKS:
 307
 308             vlc_mutex_lock( &p_input->p->p_item->lock );
 309             while( p_input->p->i_bookmark > 0 )
 310             {
 311                 p_bkmk = p_input->p->pp_bookmark[p_input->p->i_bookmark-1];
 312
 313                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark,
 314                             p_bkmk );
 315                 vlc_seekpoint_Delete( p_bkmk );
 316             }
 317             vlc_mutex_unlock( &p_input->p->p_item->lock );
 318
 319             UpdateBookmarksOption( p_input );
 320             return VLC_SUCCESS;
 321
 322         case INPUT_SET_BOOKMARK:
 323             i_bkmk = (int)va_arg( args, int );
 324
 325             val.i_int = i_bkmk;
 326             input_ControlPush( p_input, INPUT_CONTROL_SET_BOOKMARK, &val );
 327
 328             return VLC_SUCCESS;
 329
 330         case INPUT_GET_BOOKMARK:
 331             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 332
 333             vlc_mutex_lock( &p_input->p->p_item->lock );
 334             *p_bkmk = p_input->p->bookmark;
 335             vlc_mutex_unlock( &p_input->p->p_item->lock );
 336             return VLC_SUCCESS;
 337
 338         case INPUT_GET_TITLE_INFO:
 339         {
 340             input_title_t **p_title = (input_title_t **)va_arg( args, input_title_t ** );
 341             int *pi_req_title_offset = (int *) va_arg( args, int * );
 342
 343             vlc_mutex_lock( &p_input->p->p_item->lock );
 344
 345             int i_current_title = var_GetInteger( p_input, "title" );
 346             if ( *pi_req_title_offset < 0 ) /* return current title if -1 */
 347                 *pi_req_title_offset = i_current_title;
 348
 349             if( p_input->p->i_title && p_input->p->i_title > *pi_req_title_offset )
 350             {
 351                 *p_title = vlc_input_title_Duplicate( p_input->p->title[*pi_req_title_offset] );
 352                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 353                 return VLC_SUCCESS;
 354             }
 355             else
 356             {
 357                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 358                 return VLC_EGENERIC;
 359             }
 360         }
 361
 362         case INPUT_GET_VIDEO_FPS:
 363             pf = (double*)va_arg( args, double * );
 364
 365             vlc_mutex_lock( &p_input->p->p_item->lock );
 366             *pf = p_input->p->f_fps;
 367             vlc_mutex_unlock( &p_input->p->p_item->lock );
 368             return VLC_SUCCESS;
 369
 370         case INPUT_ADD_SLAVE:
 371             psz = (char*)va_arg( args, char * );
 372             if( psz && *psz )
 373             {
 374                 val.psz_string = strdup( psz );
 375                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 376             }
 377             return VLC_SUCCESS;
 378
 379         case INPUT_ADD_SUBTITLE:
 380             psz = (char*)va_arg( args, char * );
 381             b_bool = (bool)va_arg( args, int );
 382
 383             if( !psz || *psz == '\0' )
 384                 return VLC_EGENERIC;
 385             if( b_bool && !subtitles_Filter( psz ) )
 386                 return VLC_EGENERIC;
 387
 388             val.psz_string = strdup( psz );
 389             input_ControlPush( p_input, INPUT_CONTROL_ADD_SUBTITLE, &val );
 390             return VLC_SUCCESS;
 391
 392         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 393         {
 394             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 395             int *pi_attachment = (int*)va_arg( args, int * );
 396             int i;
 397
 398             vlc_mutex_lock( &p_input->p->p_item->lock );
 399             if( p_input->p->i_attachment <= 0 )
 400             {
 401                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 402                 *ppp_attachment = NULL;
 403                 *pi_attachment = 0;
 404                 return VLC_EGENERIC;
 405             }
 406             *pi_attachment = p_input->p->i_attachment;
 407             *ppp_attachment = malloc( sizeof(input_attachment_t*) * p_input->p->i_attachment );
 408             for( i = 0; i < p_input->p->i_attachment; i++ )
 409                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 410
 411             vlc_mutex_unlock( &p_input->p->p_item->lock );
 412             return VLC_SUCCESS;
 413         }
 414
 415         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 416         {
 417             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 418             const char *psz_name = (const char*)va_arg( args, const char * );
 419             int i;
 420
 421             vlc_mutex_lock( &p_input->p->p_item->lock );
 422             for( i = 0; i < p_input->p->i_attachment; i++ )
 423             {
 424                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 425                 {
 426                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 427                     vlc_mutex_unlock( &p_input->p->p_item->lock );
 428                     return VLC_SUCCESS;
 429                 }
 430             }
 431             *pp_attachment = NULL;
 432             vlc_mutex_unlock( &p_input->p->p_item->lock );
 433             return VLC_EGENERIC;
 434         }
 435
 436         case INPUT_SET_RECORD_STATE:
 437             b_bool = (bool)va_arg( args, int );
 438             var_SetBool( p_input, "record", b_bool );
 439             return VLC_SUCCESS;
 440
 441         case INPUT_GET_RECORD_STATE:
 442             pb_bool = (bool*)va_arg( args, bool* );
 443             *pb_bool = var_GetBool( p_input, "record" );
 444             return VLC_SUCCESS;
 445
 446         case INPUT_RESTART_ES:
 447             val.i_int = (int)va_arg( args, int );
 448             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 449             return VLC_SUCCESS;
 450
 451         case INPUT_GET_AOUT:
 452         {
 453             audio_output_t *p_aout = input_resource_HoldAout( p_input->p->p_resource );
 454             if( !p_aout )
 455                 return VLC_EGENERIC;
 456
 457             audio_output_t **pp_aout = (audio_output_t**)va_arg( args, audio_output_t** );
 458             *pp_aout = p_aout;
 459             return VLC_SUCCESS;
 460         }
 461
 462         case INPUT_GET_VOUTS:
 463         {
 464             vout_thread_t ***ppp_vout = (vout_thread_t***)va_arg( args, vout_thread_t*** );
 465             size_t        *pi_vout = va_arg( args, size_t * );
 466
 467             input_resource_HoldVouts( p_input->p->p_resource, ppp_vout, pi_vout );
 468             if( *pi_vout <= 0 )
 469                 return VLC_EGENERIC;
 470             return VLC_SUCCESS;
 471         }
 472
 473         case INPUT_GET_ES_OBJECTS:
 474         {
 475             const int i_id = va_arg( args, int );
 476             vlc_object_t    **pp_decoder = va_arg( args, vlc_object_t ** );
 477             vout_thread_t   **pp_vout    = va_arg( args, vout_thread_t ** );
 478             audio_output_t **pp_aout    = va_arg( args, audio_output_t ** );
 479
 480             return es_out_Control( p_input->p->p_es_out_display, ES_OUT_GET_ES_OBJECTS_BY_ID, i_id,
 481                                    pp_decoder, pp_vout, pp_aout );
 482         }
 483
 484         case INPUT_GET_PCR_SYSTEM:
 485         {
 486             mtime_t *pi_system = va_arg( args, mtime_t * );
 487             mtime_t *pi_delay  = va_arg( args, mtime_t * );
 488             return es_out_ControlGetPcrSystem( p_input->p->p_es_out_display, pi_system, pi_delay );
 489         }
 490
 491         case INPUT_MODIFY_PCR_SYSTEM:
 492         {
 493             bool b_absolute = va_arg( args, int );
 494             mtime_t i_system = va_arg( args, mtime_t );
 495             return es_out_ControlModifyPcrSystem( p_input->p->p_es_out_display, b_absolute, i_system );
 496         }
 497
 498         case INPUT_GET_ES_STATE:
 499         {
 500             int i_cat = (int)va_arg( args, int );
 501             input_es_state_e *pi_state = (input_es_state_e *)va_arg( args, input_es_state_e* );
 502
 503             bool b_selected = false, b_error = false;
 504             int ret = es_out_GetEsState( p_input->p->p_es_out_display, i_cat, &b_selected, &b_error);
 505             if (ret != VLC_SUCCESS)
 506             {
 507                 *pi_state = INPUT_ES_STATE_DISABLED;
 508                 return VLC_EGENERIC;
 509             }
 510
 511             *pi_state = b_error ? INPUT_ES_STATE_ERROR :
 512                                ( b_selected ? INPUT_ES_STATE_ENABLED : INPUT_ES_STATE_DISABLED );
 513             return ret;
 514         }
 515
 516         default:
 517             msg_Err( p_input, "unknown query in input_vaControl" );
 518             return VLC_EGENERIC;
 519     }
 520 }
 521
 522 static void UpdateBookmarksOption( input_thread_t *p_input )
 523 {
 524     vlc_mutex_lock( &p_input->p->p_item->lock );
 525
 526     /* Update the "bookmark" list */
 527     var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 528     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 529     {
 530         vlc_value_t val, text;
 531
 532         val.i_int = i;
 533         text.psz_string = p_input->p->pp_bookmark[i]->psz_name;
 534         var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 535                     &val, &text );
 536     }
 537
 538     /* Create the "bookmarks" option value */
 539     const char *psz_format = "{name=%s,bytes=%"PRId64",time=%"PRId64"}";
 540     int i_len = strlen( "bookmarks=" );
 541     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 542     {
 543         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 544
 545         i_len += snprintf( NULL, 0, psz_format,
 546                            p_bookmark->psz_name,
 547                            p_bookmark->i_byte_offset,
 548                            p_bookmark->i_time_offset/1000000 );
 549     }
 550
 551     char *psz_value = malloc( i_len + p_input->p->i_bookmark + 1 );
 552     char *psz_next = psz_value;
 553
 554     psz_next += sprintf( psz_next, "bookmarks=" );
 555     for( int i = 0; i < p_input->p->i_bookmark && psz_value != NULL; i++ )
 556     {
 557         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 558
 559         psz_next += sprintf( psz_next, psz_format,
 560                              p_bookmark->psz_name,
 561                              p_bookmark->i_byte_offset,
 562                              p_bookmark->i_time_offset/1000000 );
 563
 564         if( i < p_input->p->i_bookmark - 1)
 565             *psz_next++ = ',';
 566     }
 567     vlc_mutex_unlock( &p_input->p->p_item->lock );
 568
 569     if( psz_value )
 570         input_item_AddOption( p_input->p->p_item, psz_value, VLC_INPUT_OPTION_UNIQUE );
 571
 572     free( psz_value );
 573
 574     input_SendEventBookmark( p_input );
 575 }