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