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
  33 #include "input_internal.h"
  34 #include "event.h"
  35 #include "resource.h"
  36
  37
  38 static void UpdateBookmarksOption( input_thread_t * );
  39
  40 /****************************************************************************
  41  * input_Control
  42  ****************************************************************************/
  43 /**
  44  * Control function for inputs.
  45  * \param p_input input handle
  46  * \param i_query query type
  47  * \return VLC_SUCCESS if ok
  48  */
  49 int input_Control( input_thread_t *p_input, int i_query, ...  )
  50 {
  51     va_list args;
  52     int     i_result;
  53
  54     va_start( args, i_query );
  55     i_result = input_vaControl( p_input, i_query, args );
  56     va_end( args );
  57
  58     return i_result;
  59 }
  60
  61 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  62 {
  63     seekpoint_t *p_bkmk, ***ppp_bkmk;
  64     int i_bkmk = 0;
  65     int *pi_bkmk;
  66
  67     int i_int, *pi_int;
  68     bool b_bool, *pb_bool;
  69     double f, *pf;
  70     int64_t i_64, *pi_64;
  71
  72     char *psz;
  73     vlc_value_t val;
  74
  75     switch( i_query )
  76     {
  77         case INPUT_GET_POSITION:
  78             pf = (double*)va_arg( args, double * );
  79             *pf = var_GetFloat( p_input, "position" );
  80             return VLC_SUCCESS;
  81
  82         case INPUT_SET_POSITION:
  83             f = (double)va_arg( args, double );
  84             return var_SetFloat( p_input, "position", f );
  85
  86         case INPUT_GET_LENGTH:
  87             pi_64 = (int64_t*)va_arg( args, int64_t * );
  88             *pi_64 = var_GetTime( p_input, "length" );
  89             return VLC_SUCCESS;
  90
  91         case INPUT_GET_TIME:
  92             pi_64 = (int64_t*)va_arg( args, int64_t * );
  93             *pi_64 = var_GetTime( p_input, "time" );
  94             return VLC_SUCCESS;
  95
  96         case INPUT_SET_TIME:
  97             i_64 = (int64_t)va_arg( args, int64_t );
  98             return var_SetTime( p_input, "time", i_64 );
  99
 100         case INPUT_GET_RATE:
 101             pi_int = (int*)va_arg( args, int * );
 102             *pi_int = INPUT_RATE_DEFAULT / var_GetFloat( p_input, "rate" );
 103             return VLC_SUCCESS;
 104
 105         case INPUT_SET_RATE:
 106             i_int = (int)va_arg( args, int );
 107             return var_SetFloat( p_input, "rate",
 108                                  (float)INPUT_RATE_DEFAULT / (float)i_int );
 109
 110         case INPUT_GET_STATE:
 111             pi_int = (int*)va_arg( args, int * );
 112             *pi_int = var_GetInteger( p_input, "state" );
 113             return VLC_SUCCESS;
 114
 115         case INPUT_SET_STATE:
 116             i_int = (int)va_arg( args, int );
 117             return var_SetInteger( p_input, "state", i_int );
 118
 119         case INPUT_GET_AUDIO_DELAY:
 120             pi_64 = (int64_t*)va_arg( args, int64_t * );
 121             *pi_64 = var_GetTime( p_input, "audio-delay" );
 122             return VLC_SUCCESS;
 123
 124         case INPUT_GET_SPU_DELAY:
 125             pi_64 = (int64_t*)va_arg( args, int64_t * );
 126             *pi_64 = var_GetTime( p_input, "spu-delay" );
 127             return VLC_SUCCESS;
 128
 129         case INPUT_SET_AUDIO_DELAY:
 130             i_64 = (int64_t)va_arg( args, int64_t );
 131             return var_SetTime( p_input, "audio-delay", i_64 );
 132
 133         case INPUT_SET_SPU_DELAY:
 134             i_64 = (int64_t)va_arg( args, int64_t );
 135             return var_SetTime( p_input, "spu-delay", i_64 );
 136
 137         case INPUT_ADD_INFO:
 138         {
 139             char *psz_cat = (char *)va_arg( args, char * );
 140             char *psz_name = (char *)va_arg( args, char * );
 141             char *psz_format = (char *)va_arg( args, char * );
 142
 143             char *psz_value;
 144
 145             if( vasprintf( &psz_value, psz_format, args ) == -1 )
 146                 return VLC_EGENERIC;
 147
 148             int i_ret = input_item_AddInfo( p_input->p->p_item,
 149                                             psz_cat, psz_name, "%s", psz_value );
 150             free( psz_value );
 151
 152             if( !p_input->b_preparsing && !i_ret )
 153                 input_SendEventMetaInfo( p_input );
 154             return i_ret;
 155         }
 156         case INPUT_DEL_INFO:
 157         {
 158             char *psz_cat = (char *)va_arg( args, char * );
 159             char *psz_name = (char *)va_arg( args, char * );
 160
 161             int i_ret = input_item_DelInfo( p_input->p->p_item,
 162                                             psz_cat, psz_name );
 163
 164             if( !p_input->b_preparsing && !i_ret )
 165                 input_SendEventMetaInfo( p_input );
 166             return i_ret;
 167         }
 168         case INPUT_GET_INFO:
 169         {
 170             char *psz_cat = (char *)va_arg( args, char * );
 171             char *psz_name = (char *)va_arg( args, char * );
 172             char **ppsz_value = (char **)va_arg( args, char ** );
 173             int i_ret = VLC_EGENERIC;
 174             *ppsz_value = NULL;
 175
 176             *ppsz_value = input_item_GetInfo( p_input->p->p_item,
 177                                                   psz_cat, psz_name );
 178             return i_ret;
 179         }
 180
 181         case INPUT_SET_NAME:
 182         {
 183             char *psz_name = (char *)va_arg( args, char * );
 184
 185             if( !psz_name ) return VLC_EGENERIC;
 186
 187             input_item_SetName( p_input->p->p_item, psz_name );
 188
 189             if( !p_input->b_preparsing )
 190                 input_SendEventMetaName( p_input, psz_name );
 191             return VLC_SUCCESS;
 192         }
 193
 194         case INPUT_ADD_BOOKMARK:
 195             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 196             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 197
 198             vlc_mutex_lock( &p_input->p->p_item->lock );
 199             if( !p_bkmk->psz_name )
 200             {
 201                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 202                                p_input->p->i_bookmark ) == -1 )
 203                      p_bkmk->psz_name = NULL;
 204             }
 205
 206             TAB_APPEND( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 207             vlc_mutex_unlock( &p_input->p->p_item->lock );
 208
 209             UpdateBookmarksOption( p_input );
 210
 211             return VLC_SUCCESS;
 212
 213         case INPUT_CHANGE_BOOKMARK:
 214             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 215             i_bkmk = (int)va_arg( args, int );
 216
 217             vlc_mutex_lock( &p_input->p->p_item->lock );
 218             if( i_bkmk < p_input->p->i_bookmark )
 219             {
 220                 vlc_seekpoint_Delete( p_input->p->pp_bookmark[i_bkmk] );
 221                 p_input->p->pp_bookmark[i_bkmk] = vlc_seekpoint_Duplicate( p_bkmk );
 222             }
 223             vlc_mutex_unlock( &p_input->p->p_item->lock );
 224
 225             UpdateBookmarksOption( p_input );
 226
 227             return VLC_SUCCESS;
 228
 229         case INPUT_DEL_BOOKMARK:
 230             i_bkmk = (int)va_arg( args, int );
 231
 232             vlc_mutex_lock( &p_input->p->p_item->lock );
 233             if( i_bkmk < p_input->p->i_bookmark )
 234             {
 235                 p_bkmk = p_input->p->pp_bookmark[i_bkmk];
 236                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark, p_bkmk );
 237                 vlc_seekpoint_Delete( p_bkmk );
 238
 239                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 240
 241                 UpdateBookmarksOption( p_input );
 242
 243                 return VLC_SUCCESS;
 244             }
 245             vlc_mutex_unlock( &p_input->p->p_item->lock );
 246
 247             return VLC_EGENERIC;
 248
 249         case INPUT_GET_BOOKMARKS:
 250             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 251             pi_bkmk = (int *)va_arg( args, int * );
 252
 253             vlc_mutex_lock( &p_input->p->p_item->lock );
 254             if( p_input->p->i_bookmark )
 255             {
 256                 int i;
 257
 258                 *pi_bkmk = p_input->p->i_bookmark;
 259                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 260                                     p_input->p->i_bookmark );
 261                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 262                 {
 263                     (*ppp_bkmk)[i] =
 264                         vlc_seekpoint_Duplicate( p_input->p->pp_bookmark[i] );
 265                 }
 266
 267                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 268                 return VLC_SUCCESS;
 269             }
 270             else
 271             {
 272                 *ppp_bkmk = NULL;
 273                 *pi_bkmk = 0;
 274
 275                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 276                 return VLC_EGENERIC;
 277             }
 278             break;
 279
 280         case INPUT_CLEAR_BOOKMARKS:
 281
 282             vlc_mutex_lock( &p_input->p->p_item->lock );
 283             while( p_input->p->i_bookmark > 0 )
 284             {
 285                 p_bkmk = p_input->p->pp_bookmark[p_input->p->i_bookmark-1];
 286
 287                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->pp_bookmark,
 288                             p_bkmk );
 289                 vlc_seekpoint_Delete( p_bkmk );
 290             }
 291             vlc_mutex_unlock( &p_input->p->p_item->lock );
 292
 293             UpdateBookmarksOption( p_input );
 294             return VLC_SUCCESS;
 295
 296         case INPUT_SET_BOOKMARK:
 297             i_bkmk = (int)va_arg( args, int );
 298
 299             val.i_int = i_bkmk;
 300             input_ControlPush( p_input, INPUT_CONTROL_SET_BOOKMARK, &val );
 301
 302             return VLC_SUCCESS;
 303
 304         case INPUT_GET_BOOKMARK:
 305             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 306
 307             vlc_mutex_lock( &p_input->p->p_item->lock );
 308             *p_bkmk = p_input->p->bookmark;
 309             vlc_mutex_unlock( &p_input->p->p_item->lock );
 310             return VLC_SUCCESS;
 311
 312         case INPUT_ADD_OPTION:
 313         {
 314             const char *psz_option = va_arg( args, const char * );
 315             const char *psz_value = va_arg( args, const char * );
 316             char *str;
 317             int i;
 318
 319             if( asprintf( &str, "%s=%s", psz_option, psz_value ) == -1 )
 320                 return VLC_ENOMEM;
 321
 322             i = input_item_AddOption( p_input->p->p_item, str,
 323                                       VLC_INPUT_OPTION_UNIQUE );
 324             free( str );
 325             return i;
 326         }
 327
 328         case INPUT_GET_VIDEO_FPS:
 329             pf = (double*)va_arg( args, double * );
 330
 331             vlc_mutex_lock( &p_input->p->p_item->lock );
 332             *pf = p_input->p->f_fps;
 333             vlc_mutex_unlock( &p_input->p->p_item->lock );
 334             return VLC_SUCCESS;
 335
 336         case INPUT_ADD_SLAVE:
 337             psz = (char*)va_arg( args, char * );
 338             if( psz && *psz )
 339             {
 340                 val.psz_string = strdup( psz );
 341                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 342             }
 343             return VLC_SUCCESS;
 344
 345         case INPUT_ADD_SUBTITLE:
 346             psz = (char*)va_arg( args, char * );
 347             b_bool = (bool)va_arg( args, int );
 348
 349             if( !psz || *psz == '\0' )
 350                 return VLC_EGENERIC;
 351             if( b_bool && !subtitles_Filter( psz ) )
 352                 return VLC_EGENERIC;
 353
 354             val.psz_string = strdup( psz );
 355             input_ControlPush( p_input, INPUT_CONTROL_ADD_SUBTITLE, &val );
 356             return VLC_SUCCESS;
 357
 358         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 359         {
 360             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 361             int *pi_attachment = (int*)va_arg( args, int * );
 362             int i;
 363
 364             vlc_mutex_lock( &p_input->p->p_item->lock );
 365             if( p_input->p->i_attachment <= 0 )
 366             {
 367                 vlc_mutex_unlock( &p_input->p->p_item->lock );
 368                 *ppp_attachment = NULL;
 369                 *pi_attachment = 0;
 370                 return VLC_EGENERIC;
 371             }
 372             *pi_attachment = p_input->p->i_attachment;
 373             *ppp_attachment = malloc( sizeof(input_attachment_t**) * p_input->p->i_attachment );
 374             for( i = 0; i < p_input->p->i_attachment; i++ )
 375                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 376
 377             vlc_mutex_unlock( &p_input->p->p_item->lock );
 378             return VLC_SUCCESS;
 379         }
 380
 381         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 382         {
 383             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 384             const char *psz_name = (const char*)va_arg( args, const char * );
 385             int i;
 386
 387             vlc_mutex_lock( &p_input->p->p_item->lock );
 388             for( i = 0; i < p_input->p->i_attachment; i++ )
 389             {
 390                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 391                 {
 392                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 393                     vlc_mutex_unlock( &p_input->p->p_item->lock );
 394                     return VLC_SUCCESS;
 395                 }
 396             }
 397             *pp_attachment = NULL;
 398             vlc_mutex_unlock( &p_input->p->p_item->lock );
 399             return VLC_EGENERIC;
 400         }
 401
 402         case INPUT_SET_RECORD_STATE:
 403             b_bool = (bool)va_arg( args, int );
 404             var_SetBool( p_input, "record", b_bool );
 405             return VLC_SUCCESS;
 406
 407         case INPUT_GET_RECORD_STATE:
 408             pb_bool = (bool*)va_arg( args, bool* );
 409             *pb_bool = var_GetBool( p_input, "record" );
 410             return VLC_SUCCESS;
 411
 412         case INPUT_RESTART_ES:
 413             val.i_int = (int)va_arg( args, int );
 414             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 415             return VLC_SUCCESS;
 416
 417         case INPUT_GET_AOUT:
 418         {
 419             aout_instance_t *p_aout = input_resource_HoldAout( p_input->p->p_resource );
 420             if( !p_aout )
 421                 return VLC_EGENERIC;
 422
 423             aout_instance_t **pp_aout = (aout_instance_t**)va_arg( args, aout_instance_t** );
 424             *pp_aout = p_aout;
 425             return VLC_SUCCESS;
 426         }
 427
 428         case INPUT_GET_VOUTS:
 429         {
 430             vout_thread_t ***ppp_vout = (vout_thread_t***)va_arg( args, vout_thread_t*** );
 431             size_t        *pi_vout = va_arg( args, size_t * );
 432
 433             input_resource_HoldVouts( p_input->p->p_resource, ppp_vout, pi_vout );
 434             if( *pi_vout <= 0 )
 435                 return VLC_EGENERIC;
 436             return VLC_SUCCESS;
 437         }
 438
 439         default:
 440             msg_Err( p_input, "unknown query in input_vaControl" );
 441             return VLC_EGENERIC;
 442     }
 443 }
 444
 445 static void UpdateBookmarksOption( input_thread_t *p_input )
 446 {
 447     vlc_mutex_lock( &p_input->p->p_item->lock );
 448
 449     /* Update the "bookmark" list */
 450     var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 451     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 452     {
 453         vlc_value_t val, text;
 454
 455         val.i_int = i;
 456         text.psz_string = p_input->p->pp_bookmark[i]->psz_name;
 457         var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 458                     &val, &text );
 459     }
 460
 461     /* Create the "bookmarks" option value */
 462     const char *psz_format = "{name=%s,bytes=%"PRId64",time=%"PRId64"}";
 463     int i_len = strlen( "bookmarks=" );
 464     for( int i = 0; i < p_input->p->i_bookmark; i++ )
 465     {
 466         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 467
 468         i_len += snprintf( NULL, 0, psz_format,
 469                            p_bookmark->psz_name,
 470                            p_bookmark->i_byte_offset,
 471                            p_bookmark->i_time_offset/1000000 );
 472     }
 473
 474     char *psz_value = malloc( i_len + p_input->p->i_bookmark + 1 );
 475     char *psz_next = psz_value;
 476
 477     psz_next += sprintf( psz_next, "bookmarks=" );
 478     for( int i = 0; i < p_input->p->i_bookmark && psz_value != NULL; i++ )
 479     {
 480         const seekpoint_t *p_bookmark = p_input->p->pp_bookmark[i];
 481
 482         psz_next += sprintf( psz_next, psz_format,
 483                              p_bookmark->psz_name,
 484                              p_bookmark->i_byte_offset,
 485                              p_bookmark->i_time_offset/1000000 );
 486
 487         if( i < p_input->p->i_bookmark - 1)
 488             *psz_next++ = ',';
 489     }
 490     vlc_mutex_unlock( &p_input->p->p_item->lock );
 491
 492     if( psz_value )
 493         input_item_AddOption( p_input->p->p_item, psz_value, VLC_INPUT_OPTION_UNIQUE );
 494
 495     free( psz_value );
 496
 497     input_SendEventBookmark( p_input );
 498 }
 499