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 #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
  40 static void UpdateBookmarksOption( input_thread_t * );
  41
  42 /****************************************************************************
  43  * input_Control
  44  ****************************************************************************/
  45 /**
  46  * Control function for inputs.
  47  * \param p_input input handle
  48  * \param i_query query type
  49  * \return VLC_SUCCESS if ok
  50  */
  51 int input_Control( input_thread_t *p_input, int i_query, ...  )
  52 {
  53     va_list args;
  54     int     i_result;
  55
  56     va_start( args, i_query );
  57     i_result = input_vaControl( p_input, i_query, args );
  58     va_end( args );
  59
  60     return i_result;
  61 }
  62
  63 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  64 {
  65     seekpoint_t *p_bkmk, ***ppp_bkmk;
  66     int i_bkmk = 0;
  67     int *pi_bkmk;
  68
  69     int i_int, *pi_int;
  70     bool b_bool, *pb_bool;
  71     double f, *pf;
  72     int64_t i_64, *pi_64;
  73
  74     char *psz;
  75     vlc_value_t val;
  76
  77     switch( i_query )
  78     {
  79         case INPUT_GET_POSITION:
  80             pf = (double*)va_arg( args, double * );
  81             *pf = var_GetFloat( p_input, "position" );
  82             return VLC_SUCCESS;
  83
  84         case INPUT_SET_POSITION:
  85             f = (double)va_arg( args, double );
  86             return var_SetFloat( p_input, "position", f );
  87
  88         case INPUT_GET_LENGTH:
  89             pi_64 = (int64_t*)va_arg( args, int64_t * );
  90             *pi_64 = var_GetTime( p_input, "length" );
  91             return VLC_SUCCESS;
  92
  93         case INPUT_GET_TIME:
  94             pi_64 = (int64_t*)va_arg( args, int64_t * );
  95             *pi_64 = var_GetTime( p_input, "time" );
  96             return VLC_SUCCESS;
  97
  98         case INPUT_SET_TIME:
  99             i_64 = (int64_t)va_arg( args, int64_t );
 100             return var_SetTime( p_input, "time", i_64 );
 101
 102         case INPUT_GET_RATE:
 103             pi_int = (int*)va_arg( args, int * );
 104             *pi_int = INPUT_RATE_DEFAULT / var_GetFloat( p_input, "rate" );
 105             return VLC_SUCCESS;
 106
 107         case INPUT_SET_RATE:
 108             i_int = (int)va_arg( args, int );
 109             return var_SetFloat( p_input, "rate",
 110                                  (float)INPUT_RATE_DEFAULT / (float)i_int );
 111
 112         case INPUT_GET_STATE:
 113             pi_int = (int*)va_arg( args, int * );
 114             *pi_int = var_GetInteger( p_input, "state" );
 115             return VLC_SUCCESS;
 116
 117         case INPUT_SET_STATE:
 118             i_int = (int)va_arg( args, int );
 119             return var_SetInteger( p_input, "state", i_int );
 120
 121         case INPUT_GET_AUDIO_DELAY:
 122             pi_64 = (int64_t*)va_arg( args, int64_t * );
 123             *pi_64 = var_GetTime( p_input, "audio-delay" );
 124             return VLC_SUCCESS;
 125
 126         case INPUT_GET_SPU_DELAY:
 127             pi_64 = (int64_t*)va_arg( args, int64_t * );
 128             *pi_64 = var_GetTime( p_input, "spu-delay" );
 129             return VLC_SUCCESS;
 130
 131         case INPUT_SET_AUDIO_DELAY:
 132             i_64 = (int64_t)va_arg( args, int64_t );
 133             return var_SetTime( p_input, "audio-delay", i_64 );
 134
 135         case INPUT_SET_SPU_DELAY:
 136             i_64 = (int64_t)va_arg( args, int64_t );
 137             return var_SetTime( p_input, "spu-delay", i_64 );
 138
 139         case INPUT_ADD_INFO:
 140         {
 141             char *psz_cat = (char *)va_arg( args, char * );
 142             char *psz_name = (char *)va_arg( args, char * );
 143             char *psz_format = (char *)va_arg( args, char * );
 144
 145             char *psz_value;
 146
 147             if( vasprintf( &psz_value, psz_format, args ) == -1 )
 148                 return VLC_EGENERIC;
 149
 150             int i_ret = input_item_AddInfo( p_input->p->p_item,
 151                                             psz_cat, psz_name, "%s", psz_value );
 152             free( psz_value );
 153
 154             if( !p_input->b_preparsing && !i_ret )
 155                 input_SendEventMetaInfo( p_input );
 156             return i_ret;
 157         }
 158         case INPUT_DEL_INFO:
 159         {
 160             char *psz_cat = (char *)va_arg( args, char * );
 161             char *psz_name = (char *)va_arg( args, char * );
 162
 163             int i_ret = input_item_DelInfo( p_input->p->p_item,
 164                                             psz_cat, psz_name );
 165
 166             if( !p_input->b_preparsing && !i_ret )
 167                 input_SendEventMetaInfo( p_input );
 168             return i_ret;
 169         }
 170         case INPUT_GET_INFO:
 171         {
 172             char *psz_cat = (char *)va_arg( args, char * );
 173             char *psz_name = (char *)va_arg( args, char * );
 174             char **ppsz_value = (char **)va_arg( args, char ** );
 175             int i_ret = VLC_EGENERIC;
 176             *ppsz_value = NULL;
 177
 178             *ppsz_value = input_item_GetInfo( p_input->p->p_item,
 179                                                   psz_cat, psz_name );
 180             return i_ret;
 181         }
 182
 183         case INPUT_SET_NAME:
 184         {
 185             char *psz_name = (char *)va_arg( args, char * );
 186
 187             if( !psz_name ) return VLC_EGENERIC;
 188
 189             input_item_SetName( p_input->p->p_item, psz_name );
 190
 191             if( !p_input->b_preparsing )
 192                 input_SendEventMetaName( p_input, psz_name );
 193             return VLC_SUCCESS;
 194         }
 195
 196         case INPUT_ADD_BOOKMARK:
 197             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 198             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 199
 200             vlc_mutex_lock( &p_input->p->p_item->lock );
 201             if( !p_bkmk->psz_name )
 202             {
 203                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 204                                p_input->p->i_bookmark ) == -1 )
 205                      p_bkmk->psz_name = NULL;
 206             }
 207
 208             TAB_APPEND( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 209             vlc_mutex_unlock( &p_input->p->p_item->lock );
 210
 211             UpdateBookmarksOption( p_input );
 212
 213             return VLC_SUCCESS;
 214
 215         case INPUT_CHANGE_BOOKMARK:
 216             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 217             i_bkmk = (int)va_arg( args, int );
 218
 219             vlc_mutex_lock( &p_input->p->p_item->lock );
 220             if( i_bkmk < p_input->p->i_bookmark )
 221             {
 222                 vlc_seekpoint_Delete( p_input->p->pp_bookmark[i_bkmk] );
 223                 p_input->p->pp_bookmark[i_bkmk] = vlc_seekpoint_Duplicate( p_bkmk );
 224             }
 225             vlc_mutex_unlock( &p_input->p->p_item->lock );
 226
 227             UpdateBookmarksOption( p_input );
 228
 229             return VLC_SUCCESS;
 230
 231         case INPUT_DEL_BOOKMARK:
 232             i_bkmk = (int)va_arg( args, int );
 233
 234             vlc_mutex_lock( &p_input->p->p_item->lock );
 235             if( i_bkmk < p_input->p->i_bookmark )
 236             {
 237                 p_bkmk = p_input->p->pp_bookmark[i_bkmk];
 238                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 239                 vlc_seekpoint_Delete( p_bkmk );
 240
 241                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 242
 243                 UpdateBookmarksOption( p_input );
 244
 245                 return VLC_SUCCESS;
 246             }
 247             vlc_mutex_unlock( &p_input->p->p_item->lock );
 248
 249             return VLC_EGENERIC;
 250
 251         case INPUT_GET_BOOKMARKS:
 252             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 253             pi_bkmk = (int *)va_arg( args, int * );
 254
 255             vlc_mutex_lock( &p_input->p->p_item->lock );
 256             if( p_input->p->i_bookmark )
 257             {
 258                 int i;
 259
 260                 *pi_bkmk = p_input->p->i_bookmark;
 261                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 262                                     p_input->p->i_bookmark );
 263                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 264                 {
 265                     (*ppp_bkmk)[i] =
 266                         vlc_seekpoint_Duplicate( p_input->p->pp_bookmark[i] );
 267                 }
 268
 269                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 270                 return VLC_SUCCESS;
 271             }
 272             else
 273             {
 274                 *ppp_bkmk = NULL;
 275                 *pi_bkmk = 0;
 276
 277                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 278                 return VLC_EGENERIC;
 279             }
 280             break;
 281
 282         case INPUT_CLEAR_BOOKMARKS:
 283
 284             vlc_mutex_lock( &p_input->p->p_item->lock );
 285             while( p_input->p->i_bookmark > 0 )
 286             {
 287                 p_bkmk = p_input->p->pp_bookmark[p_input->p->i_bookmark-1];
 288
 289                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark,
 290                             p_bkmk );
 291                 vlc_seekpoint_Delete( p_bkmk );
 292             }
 293             vlc_mutex_unlock( &p_input->p->p_item->lock );
 294
 295             UpdateBookmarksOption( p_input );
 296             return VLC_SUCCESS;
 297
 298         case INPUT_SET_BOOKMARK:
 299             i_bkmk = (int)va_arg( args, int );
 300
 301             val.i_int = i_bkmk;
 302             input_ControlPush( p_input, INPUT_CONTROL_SET_BOOKMARK, &val );
 303
 304             return VLC_SUCCESS;
 305
 306         case INPUT_GET_BOOKMARK:
 307             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 308
 309             vlc_mutex_lock( &p_input->p->p_item->lock );
 310             *p_bkmk = p_input->p->bookmark;
 311             vlc_mutex_unlock( &p_input->p->p_item->lock );
 312             return VLC_SUCCESS;
 313
 314         case INPUT_ADD_OPTION:
 315         {
 316             const char *psz_option = va_arg( args, const char * );
 317             const char *psz_value = va_arg( args, const char * );
 318             char *str;
 319             int i;
 320
 321             if( asprintf( &str, "%s=%s", psz_option, psz_value ) == -1 )
 322                 return VLC_ENOMEM;
 323
 324             i = input_item_AddOption( p_input->p->p_item, str,
 325                                       VLC_INPUT_OPTION_UNIQUE );
 326             free( str );
 327             return i;
 328         }
 329
 330         case INPUT_GET_VIDEO_FPS:
 331             pf = (double*)va_arg( args, double * );
 332
 333             vlc_mutex_lock( &p_input->p->p_item->lock );
 334             *pf = p_input->p->f_fps;
 335             vlc_mutex_unlock( &p_input->p->p_item->lock );
 336             return VLC_SUCCESS;
 337
 338         case INPUT_ADD_SLAVE:
 339             psz = (char*)va_arg( args, char * );
 340             if( psz && *psz )
 341             {
 342                 val.psz_string = strdup( psz );
 343                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 344             }
 345             return VLC_SUCCESS;
 346
 347         case INPUT_ADD_SUBTITLE:
 348             psz = (char*)va_arg( args, char * );
 349             b_bool = (bool)va_arg( args, int );
 350
 351             if( !psz || *psz == '\0' )
 352                 return VLC_EGENERIC;
 353             if( b_bool && !subtitles_Filter( psz ) )
 354                 return VLC_EGENERIC;
 355
 356             val.psz_string = strdup( psz );
 357             input_ControlPush( p_input, INPUT_CONTROL_ADD_SUBTITLE, &val );
 358             return VLC_SUCCESS;
 359
 360         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 361         {
 362             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 363             int *pi_attachment = (int*)va_arg( args, int * );
 364             int i;
 365
 366             vlc_mutex_lock( &p_input->p->p_item->lock );
 367             if( p_input->p->i_attachment <= 0 )
 368             {
 369                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 370                 *ppp_attachment = NULL;
 371                 *pi_attachment = 0;
 372                 return VLC_EGENERIC;
 373             }
 374             *pi_attachment = p_input->p->i_attachment;
 375             *ppp_attachment = malloc( sizeof(input_attachment_t**) * p_input->p->i_attachment );
 376             for( i = 0; i < p_input->p->i_attachment; i++ )
 377                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 378
 379             vlc_mutex_unlock( &p_input->p->p_item->lock );
 380             return VLC_SUCCESS;
 381         }
 382
 383         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 384         {
 385             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 386             const char *psz_name = (const char*)va_arg( args, const char * );
 387             int i;
 388
 389             vlc_mutex_lock( &p_input->p->p_item->lock );
 390             for( i = 0; i < p_input->p->i_attachment; i++ )
 391             {
 392                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 393                 {
 394                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 395                     vlc_mutex_unlock( &p_input->p->p_item->lock );
 396                     return VLC_SUCCESS;
 397                 }
 398             }
 399             *pp_attachment = NULL;
 400             vlc_mutex_unlock( &p_input->p->p_item->lock );
 401             return VLC_EGENERIC;
 402         }
 403
 404         case INPUT_SET_RECORD_STATE:
 405             b_bool = (bool)va_arg( args, int );
 406             var_SetBool( p_input, "record", b_bool );
 407             return VLC_SUCCESS;
 408
 409         case INPUT_GET_RECORD_STATE:
 410             pb_bool = (bool*)va_arg( args, bool* );
 411             *pb_bool = var_GetBool( p_input, "record" );
 412             return VLC_SUCCESS;
 413
 414         case INPUT_RESTART_ES:
 415             val.i_int = (int)va_arg( args, int );
 416             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 417             return VLC_SUCCESS;
 418
 419         case INPUT_GET_AOUT:
 420         {
 421             aout_instance_t *p_aout = input_resource_HoldAout( p_input->p->p_resource );
 422             if( !p_aout )
 423                 return VLC_EGENERIC;
 424
 425             aout_instance_t **pp_aout = (aout_instance_t**)va_arg( args, aout_instance_t** );
 426             *pp_aout = p_aout;
 427             return VLC_SUCCESS;
 428         }
 429
 430         case INPUT_GET_VOUTS:
 431         {
 432             vout_thread_t ***ppp_vout = (vout_thread_t***)va_arg( args, vout_thread_t*** );
 433             size_t        *pi_vout = va_arg( args, size_t * );
 434
 435             input_resource_HoldVouts( p_input->p->p_resource, ppp_vout, pi_vout );
 436             if( *pi_vout <= 0 )
 437                 return VLC_EGENERIC;
 438             return VLC_SUCCESS;
 439         }
 440
 441         case INPUT_GET_ES_OBJECTS:
 442         {
 443             const int i_id = va_arg( args, int );
 444             vlc_object_t    **pp_decoder = va_arg( args, vlc_object_t ** );
 445             vout_thread_t   **pp_vout    = va_arg( args, vout_thread_t ** );
 446             aout_instance_t **pp_aout    = va_arg( args, aout_instance_t ** );
 447
 448             return es_out_Control( p_input->p->p_es_out_display, ES_OUT_GET_ES_OBJECTS_BY_ID, i_id,
 449                                    pp_decoder, pp_vout, pp_aout );
 450         }
 451
 452         default:
 453             msg_Err( p_input, "unknown query in input_vaControl" );
 454             return VLC_EGENERIC;
 455     }
 456 }
 457
 458 static void UpdateBookmarksOption( input_thread_t *p_input )
 459 {
 460     vlc_mutex_lock( &p_input->p->p_item->lock );
 461
 462     /* Update the "bookmark" list */
 463     var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 464     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 465     {
 466         vlc_value_t val, text;
 467
 468         val.i_int = i;
 469         text.psz_string = p_input->p->pp_bookmark[i]->psz_name;
 470         var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 471                     &val, &text );
 472     }
 473
 474     /* Create the "bookmarks" option value */
 475     const char *psz_format = "{name=%s,bytes=%"PRId64",time=%"PRId64"}";
 476     int i_len = strlen( "bookmarks=" );
 477     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 478     {
 479         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 480
 481         i_len += snprintf( NULL, 0, psz_format,
 482                            p_bookmark->psz_name,
 483                            p_bookmark->i_byte_offset,
 484                            p_bookmark->i_time_offset/1000000 );
 485     }
 486
 487     char *psz_value = malloc( i_len + p_input->p->i_bookmark + 1 );
 488     char *psz_next = psz_value;
 489
 490     psz_next += sprintf( psz_next, "bookmarks=" );
 491     for( int i = 0; i < p_input->p->i_bookmark && psz_value != NULL; i++ )
 492     {
 493         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 494
 495         psz_next += sprintf( psz_next, psz_format,
 496                              p_bookmark->psz_name,
 497                              p_bookmark->i_byte_offset,
 498                              p_bookmark->i_time_offset/1000000 );
 499
 500         if( i < p_input->p->i_bookmark - 1)
 501             *psz_next++ = ',';
 502     }
 503     vlc_mutex_unlock( &p_input->p->p_item->lock );
 504
 505     if( psz_value )
 506         input_item_AddOption( p_input->p->p_item, psz_value, VLC_INPUT_OPTION_UNIQUE );
 507
 508     free( psz_value );
 509
 510     input_SendEventBookmark( p_input );
 511 }
 512