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->input.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
 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->input.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
 168
 169         case INPUT_GET_INFO:
 170         {
 171             char *psz_cat = (char *)va_arg( args, char * );
 172             char *psz_name = (char *)va_arg( args, char * );
 173             char **ppsz_value = (char **)va_arg( args, char ** );
 174             int i_ret = VLC_EGENERIC;
 175             *ppsz_value = NULL;
 176
 177             *ppsz_value = input_item_GetInfo( p_input->p->input.p_item,
 178                                                   psz_cat, psz_name );
 179             return i_ret;
 180         }
 181
 182         case INPUT_SET_NAME:
 183         {
 184             char *psz_name = (char *)va_arg( args, char * );
 185
 186             if( !psz_name ) return VLC_EGENERIC;
 187
 188             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 189             if( p_input->p->input.p_item->psz_name )
 190                 free( p_input->p->input.p_item->psz_name );
 191             p_input->p->input.p_item->psz_name = strdup( psz_name );
 192             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 193
 194             if( !p_input->b_preparsing )
 195                 input_SendEventMetaName( p_input, psz_name );
 196             return VLC_SUCCESS;
 197         }
 198
 199         case INPUT_ADD_BOOKMARK:
 200             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 201             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 202
 203             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 204             if( !p_bkmk->psz_name )
 205             {
 206                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 207                                p_input->p->i_bookmark ) == -1 )
 208                      p_bkmk->psz_name = NULL;
 209             }
 210
 211             TAB_APPEND( p_input->p->i_bookmark, p_input->p->bookmark, p_bkmk );
 212
 213             /* Reflect the changes on the object var */
 214             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 215             {
 216                 vlc_value_t val, text;
 217                 int i;
 218
 219                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 220                 {
 221                     val.i_int = i;
 222                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 223                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 224                                 &val, &text );
 225                 }
 226             }
 227             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 228
 229             UpdateBookmarksOption( p_input );
 230
 231             return VLC_SUCCESS;
 232
 233         case INPUT_CHANGE_BOOKMARK:
 234             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 235             i_bkmk = (int)va_arg( args, int );
 236
 237             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 238             if( i_bkmk < p_input->p->i_bookmark )
 239             {
 240                 vlc_value_t val, text;
 241                 int i;
 242
 243                 p_input->p->bookmark[i_bkmk] = p_bkmk;
 244
 245                 /* Reflect the changes on the object var */
 246                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 247                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 248                 {
 249                     val.i_int = i;
 250                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 251                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 252                                 &val, &text );
 253                 }
 254             }
 255             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 256
 257             UpdateBookmarksOption( p_input );
 258
 259             return VLC_SUCCESS;
 260
 261         case INPUT_DEL_BOOKMARK:
 262             i_bkmk = (int)va_arg( args, int );
 263
 264             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 265             if( i_bkmk < p_input->p->i_bookmark )
 266             {
 267                 vlc_value_t val, text;
 268                 int i;
 269
 270                 p_bkmk = p_input->p->bookmark[i_bkmk];
 271                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 272                             p_bkmk );
 273                 vlc_seekpoint_Delete( p_bkmk );
 274
 275                 /* Reflect the changes on the object var */
 276                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 277                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 278                 {
 279                     val.i_int = i;
 280                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 281                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 282                                 &val, &text );
 283                 }
 284                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 285
 286                 UpdateBookmarksOption( p_input );
 287
 288                 return VLC_SUCCESS;
 289             }
 290             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 291
 292             return VLC_EGENERIC;
 293
 294         case INPUT_GET_BOOKMARKS:
 295             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 296             pi_bkmk = (int *)va_arg( args, int * );
 297
 298             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 299             if( p_input->p->i_bookmark )
 300             {
 301                 int i;
 302
 303                 *pi_bkmk = p_input->p->i_bookmark;
 304                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 305                                     p_input->p->i_bookmark );
 306                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 307                 {
 308                     (*ppp_bkmk)[i] =
 309                         vlc_seekpoint_Duplicate(p_input->p->bookmark[i]);
 310                 }
 311
 312                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 313                 return VLC_SUCCESS;
 314             }
 315             else
 316             {
 317                 *ppp_bkmk = NULL;
 318                 *pi_bkmk = 0;
 319
 320                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 321                 return VLC_EGENERIC;
 322             }
 323             break;
 324
 325         case INPUT_CLEAR_BOOKMARKS:
 326
 327             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 328             if( p_input->p->i_bookmark )
 329             {
 330                 int i;
 331
 332                 for( i = p_input->p->i_bookmark - 1; i >= 0; i-- )
 333                 {
 334                     p_bkmk = p_input->p->bookmark[i];
 335                     TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 336                                 p_bkmk );
 337                     vlc_seekpoint_Delete( p_bkmk );
 338                 }
 339                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 340             }
 341             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 342
 343             UpdateBookmarksOption( p_input );
 344
 345             return VLC_SUCCESS;
 346
 347         case INPUT_SET_BOOKMARK:
 348             i_bkmk = (int)va_arg( args, int );
 349
 350             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 351             if( i_bkmk >= 0 && i_bkmk < p_input->p->i_bookmark )
 352             {
 353                 vlc_value_t pos;
 354                 int i_ret;
 355
 356                 if( p_input->p->bookmark[i_bkmk]->i_time_offset != -1 )
 357                 {
 358                     pos.i_time = p_input->p->bookmark[i_bkmk]->i_time_offset;
 359                     i_ret = var_Set( p_input, "time", pos );
 360                 }
 361                 else if( p_input->p->bookmark[i_bkmk]->i_byte_offset != -1 )
 362                 {
 363                     // don't crash on bookmarks in live streams
 364                     if( stream_Size( p_input->p->input.p_stream ) == 0 )
 365                     {
 366                         vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 367                         return VLC_EGENERIC;
 368                     }
 369                     pos.f_float = !p_input->p->input.p_stream ? 0 :
 370                         p_input->p->bookmark[i_bkmk]->i_byte_offset /
 371                         stream_Size( p_input->p->input.p_stream );
 372                     i_ret = var_Set( p_input, "position", pos );
 373                 }
 374                 else
 375                 {
 376                     pos.f_float = 0;
 377                     i_ret = var_Set( p_input, "position", pos );
 378                 }
 379
 380                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 381                 return i_ret;
 382             }
 383             else
 384             {
 385                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 386                 return VLC_EGENERIC;
 387             }
 388
 389             break;
 390
 391         case INPUT_ADD_OPTION:
 392         {
 393             const char *psz_option = va_arg( args, const char * );
 394             const char *psz_value = va_arg( args, const char * );
 395             char *str;
 396             int i;
 397
 398             if( asprintf( &str, "%s=%s", psz_option, psz_value ) == -1 )
 399                 return VLC_ENOMEM;
 400
 401             i = input_item_AddOpt( p_input->p->input.p_item, str,
 402                                   VLC_INPUT_OPTION_UNIQUE );
 403             free( str );
 404             return i;
 405         }
 406
 407         case INPUT_GET_BYTE_POSITION:
 408             pi_64 = (int64_t*)va_arg( args, int64_t * );
 409             *pi_64 = !p_input->p->input.p_stream ? 0 :
 410                 stream_Tell( p_input->p->input.p_stream );
 411             return VLC_SUCCESS;
 412
 413         case INPUT_SET_BYTE_SIZE:
 414             pi_64 = (int64_t*)va_arg( args, int64_t * );
 415             *pi_64 = !p_input->p->input.p_stream ? 0 :
 416                 stream_Size( p_input->p->input.p_stream );
 417             return VLC_SUCCESS;
 418
 419         case INPUT_GET_VIDEO_FPS:
 420         {
 421             int i;
 422             pf = (double*)va_arg( args, double * );
 423             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 424             *pf = p_input->p->input.f_fps;
 425             for( i = 0; i < p_input->p->i_slave && *pf <= 0.001; i++ )
 426                 *pf = p_input->p->slave[i]->f_fps;
 427             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 428             return VLC_SUCCESS;
 429         }
 430
 431         case INPUT_ADD_SLAVE:
 432             psz = (char*)va_arg( args, char * );
 433             if( psz && *psz )
 434             {
 435                 val.psz_string = strdup( psz );
 436                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 437             }
 438             return VLC_SUCCESS;
 439
 440         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 441         {
 442             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 443             int *pi_attachment = (int*)va_arg( args, int * );
 444             int i;
 445
 446             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 447             if( p_input->p->i_attachment <= 0 )
 448             {
 449                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 450                 *ppp_attachment = NULL;
 451                 *pi_attachment = 0;
 452                 return VLC_EGENERIC;
 453             }
 454             *pi_attachment = p_input->p->i_attachment;
 455             *ppp_attachment = malloc( sizeof(input_attachment_t**) * p_input->p->i_attachment );
 456             for( i = 0; i < p_input->p->i_attachment; i++ )
 457                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 458
 459             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 460             return VLC_SUCCESS;
 461         }
 462
 463         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 464         {
 465             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 466             const char *psz_name = (const char*)va_arg( args, const char * );
 467             int i;
 468
 469             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 470             for( i = 0; i < p_input->p->i_attachment; i++ )
 471             {
 472                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 473                 {
 474                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 475                     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 476                     return VLC_SUCCESS;
 477                 }
 478             }
 479             *pp_attachment = NULL;
 480             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 481             return VLC_EGENERIC;
 482         }
 483
 484         case INPUT_SET_RECORD_STATE:
 485             b_bool = (bool)va_arg( args, int );
 486             var_SetBool( p_input, "record", b_bool );
 487             return VLC_SUCCESS;
 488
 489         case INPUT_GET_RECORD_STATE:
 490             pb_bool = (bool*)va_arg( args, bool* );
 491             *pb_bool = var_GetBool( p_input, "record" );
 492             return VLC_SUCCESS;
 493
 494         case INPUT_RESTART_ES:
 495             val.i_int = (int)va_arg( args, int );
 496             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 497             return VLC_SUCCESS;
 498
 499         default:
 500             msg_Err( p_input, "unknown query in input_vaControl" );
 501             return VLC_EGENERIC;
 502     }
 503 }
 504
 505 static void UpdateBookmarksOption( input_thread_t *p_input )
 506 {
 507     int i, i_len = 0;
 508     char *psz_value = NULL, *psz_next = NULL;
 509
 510     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 511     if( p_input->p->i_bookmark > 0 )
 512     {
 513         for( i = 0; i < p_input->p->i_bookmark; i++ )
 514         {
 515             i_len += snprintf( NULL, 0, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 516                                p_input->p->bookmark[i]->psz_name,
 517                                p_input->p->bookmark[i]->i_byte_offset,
 518                                p_input->p->bookmark[i]->i_time_offset/1000000 );
 519         }
 520         psz_value = psz_next = malloc( i_len + p_input->p->i_bookmark );
 521
 522         for( i = 0; i < p_input->p->i_bookmark; i++ )
 523         {
 524             sprintf( psz_next, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 525                      p_input->p->bookmark[i]->psz_name,
 526                      p_input->p->bookmark[i]->i_byte_offset,
 527                      p_input->p->bookmark[i]->i_time_offset/1000000 );
 528
 529             psz_next += strlen( psz_next );
 530             if( i < p_input->p->i_bookmark - 1)
 531                 *psz_next = ','; psz_next++;
 532         }
 533     }
 534     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 535
 536     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 537                    psz_value ? psz_value : "" );
 538     free( psz_value );
 539 }
 540