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
 149             if( !p_input->b_preparsing && !i_ret )
 150                 input_SendEventMetaInfo( p_input );
 151             return i_ret;
 152         }
 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->input.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
 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->input.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             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 188             if( p_input->p->input.p_item->psz_name )
 189                 free( p_input->p->input.p_item->psz_name );
 190             p_input->p->input.p_item->psz_name = strdup( psz_name );
 191             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 192
 193             if( !p_input->b_preparsing )
 194                 input_SendEventMetaName( p_input, psz_name );
 195             return VLC_SUCCESS;
 196         }
 197
 198         case INPUT_ADD_BOOKMARK:
 199             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 200             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 201
 202             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 203             if( !p_bkmk->psz_name )
 204             {
 205                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 206                                p_input->p->i_bookmark ) == -1 )
 207                      p_bkmk->psz_name = NULL;
 208             }
 209
 210             TAB_APPEND( p_input->p->i_bookmark, p_input->p->bookmark, p_bkmk );
 211
 212             /* Reflect the changes on the object var */
 213             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 214             {
 215                 vlc_value_t val, text;
 216                 int i;
 217
 218                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 219                 {
 220                     val.i_int = i;
 221                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 222                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 223                                 &val, &text );
 224                 }
 225             }
 226             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 227
 228             UpdateBookmarksOption( p_input );
 229
 230             return VLC_SUCCESS;
 231
 232         case INPUT_CHANGE_BOOKMARK:
 233             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 234             i_bkmk = (int)va_arg( args, int );
 235
 236             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 237             if( i_bkmk < p_input->p->i_bookmark )
 238             {
 239                 vlc_value_t val, text;
 240                 int i;
 241
 242                 p_input->p->bookmark[i_bkmk] = p_bkmk;
 243
 244                 /* Reflect the changes on the object var */
 245                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 246                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 247                 {
 248                     val.i_int = i;
 249                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 250                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 251                                 &val, &text );
 252                 }
 253             }
 254             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 255
 256             UpdateBookmarksOption( p_input );
 257
 258             return VLC_SUCCESS;
 259
 260         case INPUT_DEL_BOOKMARK:
 261             i_bkmk = (int)va_arg( args, int );
 262
 263             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 264             if( i_bkmk < p_input->p->i_bookmark )
 265             {
 266                 vlc_value_t val, text;
 267                 int i;
 268
 269                 p_bkmk = p_input->p->bookmark[i_bkmk];
 270                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 271                             p_bkmk );
 272                 vlc_seekpoint_Delete( p_bkmk );
 273
 274                 /* Reflect the changes on the object var */
 275                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 276                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 277                 {
 278                     val.i_int = i;
 279                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 280                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 281                                 &val, &text );
 282                 }
 283                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 284
 285                 UpdateBookmarksOption( p_input );
 286
 287                 return VLC_SUCCESS;
 288             }
 289             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 290
 291             return VLC_EGENERIC;
 292
 293         case INPUT_GET_BOOKMARKS:
 294             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 295             pi_bkmk = (int *)va_arg( args, int * );
 296
 297             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 298             if( p_input->p->i_bookmark )
 299             {
 300                 int i;
 301
 302                 *pi_bkmk = p_input->p->i_bookmark;
 303                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 304                                     p_input->p->i_bookmark );
 305                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 306                 {
 307                     (*ppp_bkmk)[i] =
 308                         vlc_seekpoint_Duplicate(p_input->p->bookmark[i]);
 309                 }
 310
 311                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 312                 return VLC_SUCCESS;
 313             }
 314             else
 315             {
 316                 *ppp_bkmk = NULL;
 317                 *pi_bkmk = 0;
 318
 319                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 320                 return VLC_EGENERIC;
 321             }
 322             break;
 323
 324         case INPUT_CLEAR_BOOKMARKS:
 325
 326             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 327             if( p_input->p->i_bookmark )
 328             {
 329                 int i;
 330
 331                 for( i = p_input->p->i_bookmark - 1; i >= 0; i-- )
 332                 {
 333                     p_bkmk = p_input->p->bookmark[i];
 334                     TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 335                                 p_bkmk );
 336                     vlc_seekpoint_Delete( p_bkmk );
 337                 }
 338                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 339             }
 340             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 341
 342             UpdateBookmarksOption( p_input );
 343
 344             return VLC_SUCCESS;
 345
 346         case INPUT_SET_BOOKMARK:
 347             i_bkmk = (int)va_arg( args, int );
 348
 349             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 350             if( i_bkmk >= 0 && i_bkmk < p_input->p->i_bookmark )
 351             {
 352                 vlc_value_t pos;
 353                 int i_ret;
 354
 355                 if( p_input->p->bookmark[i_bkmk]->i_time_offset != -1 )
 356                 {
 357                     pos.i_time = p_input->p->bookmark[i_bkmk]->i_time_offset;
 358                     i_ret = var_Set( p_input, "time", pos );
 359                 }
 360                 else if( p_input->p->bookmark[i_bkmk]->i_byte_offset != -1 )
 361                 {
 362                     // don't crash on bookmarks in live streams
 363                     if( stream_Size( p_input->p->input.p_stream ) == 0 )
 364                     {
 365                         vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 366                         return VLC_EGENERIC;
 367                     }
 368                     pos.f_float = !p_input->p->input.p_stream ? 0 :
 369                         p_input->p->bookmark[i_bkmk]->i_byte_offset /
 370                         stream_Size( p_input->p->input.p_stream );
 371                     i_ret = var_Set( p_input, "position", pos );
 372                 }
 373                 else
 374                 {
 375                     pos.f_float = 0;
 376                     i_ret = var_Set( p_input, "position", pos );
 377                 }
 378
 379                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 380                 return i_ret;
 381             }
 382             else
 383             {
 384                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 385                 return VLC_EGENERIC;
 386             }
 387
 388             break;
 389
 390         case INPUT_ADD_OPTION:
 391         {
 392             const char *psz_option = va_arg( args, const char * );
 393             const char *psz_value = va_arg( args, const char * );
 394             char *str;
 395             int i;
 396
 397             if( asprintf( &str, "%s=%s", psz_option, psz_value ) == -1 )
 398                 return VLC_ENOMEM;
 399
 400             i = input_item_AddOpt( p_input->p->input.p_item, str,
 401                                   VLC_INPUT_OPTION_UNIQUE );
 402             free( str );
 403             return i;
 404         }
 405
 406         case INPUT_GET_BYTE_POSITION:
 407             pi_64 = (int64_t*)va_arg( args, int64_t * );
 408             *pi_64 = !p_input->p->input.p_stream ? 0 :
 409                 stream_Tell( p_input->p->input.p_stream );
 410             return VLC_SUCCESS;
 411
 412         case INPUT_SET_BYTE_SIZE:
 413             pi_64 = (int64_t*)va_arg( args, int64_t * );
 414             *pi_64 = !p_input->p->input.p_stream ? 0 :
 415                 stream_Size( p_input->p->input.p_stream );
 416             return VLC_SUCCESS;
 417
 418         case INPUT_GET_VIDEO_FPS:
 419         {
 420             int i;
 421             pf = (double*)va_arg( args, double * );
 422             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 423             *pf = p_input->p->input.f_fps;
 424             for( i = 0; i < p_input->p->i_slave && *pf <= 0.001; i++ )
 425                 *pf = p_input->p->slave[i]->f_fps;
 426             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 427             return VLC_SUCCESS;
 428         }
 429
 430         case INPUT_ADD_SLAVE:
 431             psz = (char*)va_arg( args, char * );
 432             if( psz && *psz )
 433             {
 434                 val.psz_string = strdup( psz );
 435                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 436             }
 437             return VLC_SUCCESS;
 438
 439         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 440         {
 441             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 442             int *pi_attachment = (int*)va_arg( args, int * );
 443             int i;
 444
 445             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 446             if( p_input->p->i_attachment <= 0 )
 447             {
 448                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 449                 *ppp_attachment = NULL;
 450                 *pi_attachment = 0;
 451                 return VLC_EGENERIC;
 452             }
 453             *pi_attachment = p_input->p->i_attachment;
 454             *ppp_attachment = malloc( sizeof(input_attachment_t**) * p_input->p->i_attachment );
 455             for( i = 0; i < p_input->p->i_attachment; i++ )
 456                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 457
 458             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 459             return VLC_SUCCESS;
 460         }
 461
 462         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 463         {
 464             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 465             const char *psz_name = (const char*)va_arg( args, const char * );
 466             int i;
 467
 468             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 469             for( i = 0; i < p_input->p->i_attachment; i++ )
 470             {
 471                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 472                 {
 473                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 474                     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 475                     return VLC_SUCCESS;
 476                 }
 477             }
 478             *pp_attachment = NULL;
 479             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 480             return VLC_EGENERIC;
 481         }
 482
 483         case INPUT_SET_RECORD_STATE:
 484             b_bool = (bool)va_arg( args, int );
 485             var_SetBool( p_input, "record", b_bool );
 486             return VLC_SUCCESS;
 487
 488         case INPUT_GET_RECORD_STATE:
 489             pb_bool = (bool*)va_arg( args, bool* );
 490             *pb_bool = var_GetBool( p_input, "record" );
 491             return VLC_SUCCESS;
 492
 493         case INPUT_RESTART_ES:
 494             val.i_int = (int)va_arg( args, int );
 495             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 496             return VLC_SUCCESS;
 497
 498         default:
 499             msg_Err( p_input, "unknown query in input_vaControl" );
 500             return VLC_EGENERIC;
 501     }
 502 }
 503
 504 static void UpdateBookmarksOption( input_thread_t *p_input )
 505 {
 506     int i, i_len = 0;
 507     char *psz_value = NULL, *psz_next = NULL;
 508
 509     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 510     if( p_input->p->i_bookmark > 0 )
 511     {
 512         for( i = 0; i < p_input->p->i_bookmark; i++ )
 513         {
 514             i_len += snprintf( NULL, 0, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 515                                p_input->p->bookmark[i]->psz_name,
 516                                p_input->p->bookmark[i]->i_byte_offset,
 517                                p_input->p->bookmark[i]->i_time_offset/1000000 );
 518         }
 519         psz_value = psz_next = malloc( i_len + p_input->p->i_bookmark );
 520
 521         for( i = 0; i < p_input->p->i_bookmark; i++ )
 522         {
 523             sprintf( psz_next, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 524                      p_input->p->bookmark[i]->psz_name,
 525                      p_input->p->bookmark[i]->i_byte_offset,
 526                      p_input->p->bookmark[i]->i_time_offset/1000000 );
 527
 528             psz_next += strlen( psz_next );
 529             if( i < p_input->p->i_bookmark - 1)
 530                 *psz_next = ','; psz_next++;
 531         }
 532     }
 533     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 534
 535     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 536                    psz_value ? psz_value : "" );
 537     free( psz_value );
 538 }
 539