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