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

   1 /*****************************************************************************
   2  * control.c
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 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
  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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdlib.h>
  25 #include <vlc/vlc.h>
  26 #include <vlc/input.h>
  27
  28 #include "input_internal.h"
  29 #include "vlc_playlist.h"
  30
  31
  32 static void UpdateBookmarksOption( input_thread_t * );
  33 static void NotifyPlaylist( input_thread_t * );
  34
  35 /****************************************************************************
  36  * input_Control
  37  ****************************************************************************/
  38 /**
  39  * Control function for inputs.
  40  * \param p_input input handle
  41  * \param i_query query type
  42  * \return VLC_SUCCESS if ok
  43  */
  44 int input_Control( input_thread_t *p_input, int i_query, ...  )
  45 {
  46     va_list args;
  47     int     i_result;
  48
  49     va_start( args, i_query );
  50     i_result = input_vaControl( p_input, i_query, args );
  51     va_end( args );
  52
  53     return i_result;
  54 }
  55
  56 int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
  57 {
  58     seekpoint_t *p_bkmk, ***ppp_bkmk;
  59     int i_bkmk = 0;
  60     int *pi_bkmk;
  61
  62     int i_int, *pi_int;
  63     double f, *pf;
  64     int64_t i_64, *pi_64;
  65
  66     char *psz;
  67     vlc_value_t val;
  68
  69     switch( i_query )
  70     {
  71         case INPUT_GET_POSITION:
  72             pf = (double*)va_arg( args, double * );
  73             *pf = var_GetFloat( p_input, "position" );
  74             return VLC_SUCCESS;
  75
  76         case INPUT_SET_POSITION:
  77             f = (double)va_arg( args, double );
  78             return var_SetFloat( p_input, "position", f );
  79
  80         case INPUT_GET_LENGTH:
  81             pi_64 = (int64_t*)va_arg( args, int64_t * );
  82             *pi_64 = var_GetTime( p_input, "length" );
  83             return VLC_SUCCESS;
  84
  85         case INPUT_GET_TIME:
  86             pi_64 = (int64_t*)va_arg( args, int64_t * );
  87             *pi_64 = var_GetTime( p_input, "time" );
  88             return VLC_SUCCESS;
  89
  90         case INPUT_SET_TIME:
  91             i_64 = (int64_t)va_arg( args, int64_t );
  92             return var_SetTime( p_input, "time", i_64 );
  93
  94         case INPUT_GET_RATE:
  95             pi_int = (int*)va_arg( args, int * );
  96             *pi_int = var_GetInteger( p_input, "rate" );
  97             return VLC_SUCCESS;
  98
  99         case INPUT_SET_RATE:
 100             i_int = (int)va_arg( args, int );
 101             return var_SetInteger( p_input, "rate", i_int );
 102
 103         case INPUT_GET_STATE:
 104             pi_int = (int*)va_arg( args, int * );
 105             *pi_int = var_GetInteger( p_input, "state" );
 106             return VLC_SUCCESS;
 107
 108         case INPUT_SET_STATE:
 109             i_int = (int)va_arg( args, int );
 110             return var_SetInteger( p_input, "state", i_int );
 111
 112         case INPUT_GET_AUDIO_DELAY:
 113             pi_64 = (int64_t*)va_arg( args, int64_t * );
 114             *pi_64 = var_GetTime( p_input, "audio-delay" );
 115             return VLC_SUCCESS;
 116
 117         case INPUT_GET_SPU_DELAY:
 118             pi_64 = (int64_t*)va_arg( args, int64_t * );
 119             *pi_64 = var_GetTime( p_input, "spu-delay" );
 120             return VLC_SUCCESS;
 121
 122         case INPUT_SET_AUDIO_DELAY:
 123             i_64 = (int64_t)va_arg( args, int64_t );
 124             return var_SetTime( p_input, "audio-delay", i_64 );
 125
 126         case INPUT_SET_SPU_DELAY:
 127             i_64 = (int64_t)va_arg( args, int64_t );
 128             return var_SetTime( p_input, "spu-delay", i_64 );
 129
 130         case INPUT_ADD_INFO:
 131         {
 132             /* FIXME : Impossible to use vlc_input_item_AddInfo because of
 133              * the ... problem ? */
 134             char *psz_cat = (char *)va_arg( args, char * );
 135             char *psz_name = (char *)va_arg( args, char * );
 136             char *psz_format = (char *)va_arg( args, char * );
 137
 138             info_category_t *p_cat;
 139             info_t *p_info;
 140             int i;
 141
 142             vlc_mutex_lock( &p_input->input.p_item->lock );
 143             for( i = 0; i < p_input->input.p_item->i_categories; i++ )
 144             {
 145                 if( !strcmp( p_input->input.p_item->pp_categories[i]->psz_name,
 146                              psz_cat ) ) break;
 147             }
 148
 149             if( i == p_input->input.p_item->i_categories )
 150             {
 151                 p_cat = malloc( sizeof( info_category_t ) );
 152                 if( !p_cat )
 153                 {
 154                     vlc_mutex_lock( &p_input->input.p_item->lock );
 155                     return VLC_EGENERIC;
 156                 }
 157                 p_cat->psz_name = strdup( psz_cat );
 158                 p_cat->i_infos = 0;
 159                 p_cat->pp_infos = NULL;
 160                 INSERT_ELEM( p_input->input.p_item->pp_categories,
 161                              p_input->input.p_item->i_categories,
 162                              p_input->input.p_item->i_categories, p_cat );
 163             }
 164
 165             p_cat = p_input->input.p_item->pp_categories[i];
 166
 167             for( i = 0; i < p_cat->i_infos; i++ )
 168             {
 169                 if( !strcmp( p_cat->pp_infos[i]->psz_name, psz_name ) )
 170                 {
 171                     if( p_cat->pp_infos[i]->psz_value )
 172                         free( p_cat->pp_infos[i]->psz_value );
 173                     break;
 174                 }
 175             }
 176
 177             if( i == p_cat->i_infos )
 178             {
 179                 p_info = malloc( sizeof( info_t ) );
 180                 if( !p_info )
 181                 {
 182                     vlc_mutex_lock( &p_input->input.p_item->lock );
 183                     return VLC_EGENERIC;
 184                 }
 185
 186                 INSERT_ELEM( p_cat->pp_infos, p_cat->i_infos,
 187                              p_cat->i_infos, p_info );
 188                 p_info->psz_name = strdup( psz_name );
 189             }
 190
 191             p_info = p_cat->pp_infos[i];
 192             vasprintf( &p_info->psz_value, psz_format, args );
 193
 194             vlc_mutex_unlock( &p_input->input.p_item->lock );
 195
 196             NotifyPlaylist( p_input );
 197         }
 198         return VLC_SUCCESS;
 199
 200         case INPUT_GET_INFO:
 201         {
 202             char *psz_cat = (char *)va_arg( args, char * );
 203             char *psz_name = (char *)va_arg( args, char * );
 204             char **ppsz_value = (char **)va_arg( args, char ** );
 205             int i_ret = VLC_EGENERIC;
 206             int i;
 207             *ppsz_value = NULL;
 208
 209             *ppsz_value = vlc_input_item_GetInfo( p_input->input.p_item,
 210                                                   psz_cat, psz_name );
 211             return i_ret;
 212         }
 213
 214         case INPUT_SET_NAME:
 215         {
 216             char *psz_name = (char *)va_arg( args, char * );
 217
 218             if( !psz_name ) return VLC_EGENERIC;
 219
 220             vlc_mutex_lock( &p_input->input.p_item->lock );
 221             if( p_input->input.p_item->psz_name )
 222                 free( p_input->input.p_item->psz_name );
 223             p_input->input.p_item->psz_name = strdup( psz_name );
 224             vlc_mutex_unlock( &p_input->input.p_item->lock );
 225
 226             NotifyPlaylist( p_input );
 227
 228             return VLC_SUCCESS;
 229         }
 230
 231         case INPUT_ADD_BOOKMARK:
 232             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 233             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 234
 235             vlc_mutex_lock( &p_input->input.p_item->lock );
 236             if( !p_bkmk->psz_name )
 237             {
 238                  asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 239                            p_input->i_bookmark );
 240             }
 241
 242             TAB_APPEND( p_input->i_bookmark, p_input->bookmark, p_bkmk );
 243
 244             /* Reflect the changes on the object var */
 245             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 246             {
 247                 vlc_value_t val, text;
 248                 int i;
 249
 250                 for( i = 0; i < p_input->i_bookmark; i++ )
 251                 {
 252                     val.i_int = i;
 253                     text.psz_string = p_input->bookmark[i]->psz_name;
 254                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 255                                 &val, &text );
 256                 }
 257             }
 258             vlc_mutex_unlock( &p_input->input.p_item->lock );
 259
 260             UpdateBookmarksOption( p_input );
 261
 262             return VLC_SUCCESS;
 263
 264         case INPUT_CHANGE_BOOKMARK:
 265             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 266             i_bkmk = (int)va_arg( args, int );
 267
 268             vlc_mutex_lock( &p_input->input.p_item->lock );
 269             if( i_bkmk < p_input->i_bookmark )
 270             {
 271                 vlc_value_t val, text;
 272                 int i;
 273
 274                 p_input->bookmark[i_bkmk] = p_bkmk;
 275
 276                 /* Reflect the changes on the object var */
 277                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 278                 for( i = 0; i < p_input->i_bookmark; i++ )
 279                 {
 280                     val.i_int = i;
 281                     text.psz_string = p_input->bookmark[i]->psz_name;
 282                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 283                                 &val, &text );
 284                 }
 285             }
 286             vlc_mutex_unlock( &p_input->input.p_item->lock );
 287
 288             UpdateBookmarksOption( p_input );
 289
 290             return VLC_SUCCESS;
 291
 292         case INPUT_DEL_BOOKMARK:
 293             i_bkmk = (int)va_arg( args, int );
 294
 295             vlc_mutex_lock( &p_input->input.p_item->lock );
 296             if( i_bkmk < p_input->i_bookmark )
 297             {
 298                 vlc_value_t val, text;
 299                 int i;
 300
 301                 p_bkmk = p_input->bookmark[i_bkmk];
 302                 TAB_REMOVE( p_input->i_bookmark, p_input->bookmark,
 303                             p_bkmk );
 304                 vlc_seekpoint_Delete( p_bkmk );
 305
 306                 /* Reflect the changes on the object var */
 307                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 308                 for( i = 0; i < p_input->i_bookmark; i++ )
 309                 {
 310                     val.i_int = i;
 311                     text.psz_string = p_input->bookmark[i]->psz_name;
 312                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 313                                 &val, &text );
 314                 }
 315                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 316
 317                 UpdateBookmarksOption( p_input );
 318
 319                 return VLC_SUCCESS;
 320             }
 321             vlc_mutex_unlock( &p_input->input.p_item->lock );
 322
 323             return VLC_EGENERIC;
 324
 325         case INPUT_GET_BOOKMARKS:
 326             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 327             pi_bkmk = (int *)va_arg( args, int * );
 328
 329             vlc_mutex_lock( &p_input->input.p_item->lock );
 330             if( p_input->i_bookmark )
 331             {
 332                 int i;
 333
 334                 *pi_bkmk = p_input->i_bookmark;
 335                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 336                                     p_input->i_bookmark );
 337                 for( i = 0; i < p_input->i_bookmark; i++ )
 338                 {
 339                     (*ppp_bkmk)[i] =
 340                         vlc_seekpoint_Duplicate(p_input->bookmark[i]);
 341                 }
 342
 343                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 344                 return VLC_SUCCESS;
 345             }
 346             else
 347             {
 348                 *ppp_bkmk = NULL;
 349                 *pi_bkmk = 0;
 350
 351                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 352                 return VLC_EGENERIC;
 353             }
 354             break;
 355
 356         case INPUT_CLEAR_BOOKMARKS:
 357
 358             vlc_mutex_lock( &p_input->input.p_item->lock );
 359             if( p_input->i_bookmark )
 360             {
 361                 int i;
 362
 363                 for( i = p_input->i_bookmark - 1; i >= 0; i-- )
 364                 {
 365                     p_bkmk = p_input->bookmark[i];
 366                     TAB_REMOVE( p_input->i_bookmark, p_input->bookmark,
 367                                 p_bkmk );
 368                     vlc_seekpoint_Delete( p_bkmk );
 369                 }
 370                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 371             }
 372             vlc_mutex_unlock( &p_input->input.p_item->lock );
 373
 374             UpdateBookmarksOption( p_input );
 375
 376             return VLC_SUCCESS;
 377
 378         case INPUT_SET_BOOKMARK:
 379             i_bkmk = (int)va_arg( args, int );
 380
 381             vlc_mutex_lock( &p_input->input.p_item->lock );
 382             if( i_bkmk >= 0 && i_bkmk < p_input->i_bookmark )
 383             {
 384                 vlc_value_t pos;
 385                 int i_ret;
 386
 387                 if( p_input->bookmark[i_bkmk]->i_time_offset )
 388                 {
 389                     pos.i_time = p_input->bookmark[i_bkmk]->i_time_offset;
 390                     i_ret = var_Set( p_input, "time", pos );
 391                 }
 392                 else if( p_input->bookmark[i_bkmk]->i_byte_offset )
 393                 {
 394                     pos.f_float = !p_input->input.p_stream ? 0 :
 395                         p_input->bookmark[i_bkmk]->i_byte_offset /
 396                         stream_Size( p_input->input.p_stream );
 397                     i_ret = var_Set( p_input, "position", pos );
 398                 }
 399                 else
 400                 {
 401                     pos.f_float = 0;
 402                     i_ret = var_Set( p_input, "position", pos );
 403                 }
 404
 405                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 406                 return i_ret;
 407             }
 408             else
 409             {
 410                 vlc_mutex_unlock( &p_input->input.p_item->lock );
 411                 return VLC_EGENERIC;
 412             }
 413
 414             break;
 415
 416         case INPUT_ADD_OPTION:
 417         {
 418             char *psz_option = (char *)va_arg( args, char * );
 419             char *psz_value = (char *)va_arg( args, char * );
 420             int i;
 421
 422             vlc_mutex_lock( &p_input->input.p_item->lock );
 423             /* Check if option already exists */
 424             for( i = 0; i < p_input->input.p_item->i_options; i++ )
 425             {
 426                 if( !strncmp( p_input->input.p_item->ppsz_options[i],
 427                               psz_option, strlen( psz_option ) ) &&
 428                     p_input->input.p_item->ppsz_options[i][strlen(psz_option)]
 429                       == '=' )
 430                 {
 431                     free( p_input->input.p_item->ppsz_options[i] );
 432                     break;
 433                 }
 434             }
 435             if( i == p_input->input.p_item->i_options )
 436             {
 437                 p_input->input.p_item->i_options++;
 438                 p_input->input.p_item->ppsz_options =
 439                     realloc( p_input->input.p_item->ppsz_options,
 440                              p_input->input.p_item->i_options *
 441                              sizeof(char **) );
 442             }
 443
 444             asprintf( &p_input->input.p_item->ppsz_options[i],
 445                       "%s=%s", psz_option, psz_value ) ;
 446             vlc_mutex_unlock( &p_input->input.p_item->lock );
 447
 448             return VLC_SUCCESS;
 449         }
 450
 451         case INPUT_GET_BYTE_POSITION:
 452             pi_64 = (int64_t*)va_arg( args, int64_t * );
 453             *pi_64 = !p_input->input.p_stream ? 0 :
 454                 stream_Tell( p_input->input.p_stream );
 455             return VLC_SUCCESS;
 456
 457         case INPUT_SET_BYTE_SIZE:
 458             pi_64 = (int64_t*)va_arg( args, int64_t * );
 459             *pi_64 = !p_input->input.p_stream ? 0 :
 460                 stream_Size( p_input->input.p_stream );
 461             return VLC_SUCCESS;
 462
 463         case INPUT_ADD_SLAVE:
 464             psz = (char*)va_arg( args, char * );
 465             if( psz && *psz )
 466             {
 467                 val.psz_string = strdup( psz );
 468                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 469             }
 470             return VLC_SUCCESS;
 471
 472         default:
 473             msg_Err( p_input, "unknown query in input_vaControl" );
 474             return VLC_EGENERIC;
 475     }
 476 }
 477
 478 static void NotifyPlaylist( input_thread_t *p_input )
 479 {
 480     playlist_t *p_playlist =
 481         (playlist_t *)vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
 482                                        FIND_PARENT );
 483     if( p_playlist )
 484     {
 485         var_SetInteger( p_playlist, "item-change", p_playlist->i_index );
 486         vlc_object_release( p_playlist );
 487     }
 488 }
 489
 490 static void UpdateBookmarksOption( input_thread_t *p_input )
 491 {
 492     int i, i_len = 0;
 493     char *psz_value = NULL, *psz_next = NULL;
 494
 495     vlc_mutex_lock( &p_input->input.p_item->lock );
 496     for( i = 0; i < p_input->i_bookmark; i++ )
 497     {
 498         asprintf( &psz_value, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 499                   p_input->bookmark[i]->psz_name,
 500                   p_input->bookmark[i]->i_byte_offset,
 501                   p_input->bookmark[i]->i_time_offset/1000000 );
 502         i_len += strlen( psz_value );
 503         free( psz_value );
 504     }
 505     for( i = 0; i < p_input->i_bookmark; i++ )
 506     {
 507         if( !i ) psz_value = psz_next = malloc( i_len + p_input->i_bookmark );
 508
 509         sprintf( psz_next, "{name=%s,bytes="I64Fd",time="I64Fd"}",
 510                  p_input->bookmark[i]->psz_name,
 511                  p_input->bookmark[i]->i_byte_offset,
 512                  p_input->bookmark[i]->i_time_offset/1000000 );
 513
 514         psz_next += strlen( psz_next );
 515         if( i < p_input->i_bookmark - 1)
 516         {
 517             *psz_next = ','; psz_next++;
 518         }
 519     }
 520     vlc_mutex_unlock( &p_input->input.p_item->lock );
 521
 522     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 523                    psz_value ? psz_value : "" );
 524 }