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             /* FIXME : Impossible to use input_item_AddInfo because of
 138              * the ... problem ? */
 139             char *psz_cat = (char *)va_arg( args, char * );
 140             char *psz_name = (char *)va_arg( args, char * );
 141             char *psz_format = (char *)va_arg( args, char * );
 142
 143             char *psz_value;
 144
 145             if( vasprintf( &psz_value, psz_format, args ) == -1 )
 146                 return VLC_EGENERIC;
 147
 148             int i_ret = input_item_AddInfo( p_input->p->input.p_item,
 149                                             psz_cat, psz_name, "%s", psz_value );
 150
 151             if( !p_input->b_preparsing && !i_ret )
 152                 input_SendEventMetaInfo( p_input );
 153             return i_ret;
 154         }
 155
 156         case INPUT_DEL_INFO:
 157         {
 158             char *psz_cat = (char *)va_arg( args, char * );
 159             char *psz_name = (char *)va_arg( args, char * );
 160
 161             int i_ret = input_item_DelInfo( p_input->p->input.p_item,
 162                                             psz_cat, psz_name );
 163
 164             if( !p_input->b_preparsing && !i_ret )
 165                 input_SendEventMetaInfo( p_input );
 166             return i_ret;
 167         }
 168
 169
 170         case INPUT_GET_INFO:
 171         {
 172             char *psz_cat = (char *)va_arg( args, char * );
 173             char *psz_name = (char *)va_arg( args, char * );
 174             char **ppsz_value = (char **)va_arg( args, char ** );
 175             int i_ret = VLC_EGENERIC;
 176             *ppsz_value = NULL;
 177
 178             *ppsz_value = input_item_GetInfo( p_input->p->input.p_item,
 179                                                   psz_cat, psz_name );
 180             return i_ret;
 181         }
 182
 183         case INPUT_SET_NAME:
 184         {
 185             char *psz_name = (char *)va_arg( args, char * );
 186
 187             if( !psz_name ) return VLC_EGENERIC;
 188
 189             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 190             if( p_input->p->input.p_item->psz_name )
 191                 free( p_input->p->input.p_item->psz_name );
 192             p_input->p->input.p_item->psz_name = strdup( psz_name );
 193             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 194
 195             if( !p_input->b_preparsing )
 196                 input_SendEventMetaName( p_input, psz_name );
 197             return VLC_SUCCESS;
 198         }
 199
 200         case INPUT_ADD_BOOKMARK:
 201             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 202             p_bkmk = vlc_seekpoint_Duplicate( p_bkmk );
 203
 204             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 205             if( !p_bkmk->psz_name )
 206             {
 207                  if( asprintf( &p_bkmk->psz_name, _("Bookmark %i"),
 208                                p_input->p->i_bookmark ) == -1 )
 209                      p_bkmk->psz_name = NULL;
 210             }
 211
 212             TAB_APPEND( p_input->p->i_bookmark, p_input->p->bookmark, p_bkmk );
 213
 214             /* Reflect the changes on the object var */
 215             var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 216             {
 217                 vlc_value_t val, text;
 218                 int i;
 219
 220                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 221                 {
 222                     val.i_int = i;
 223                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 224                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 225                                 &val, &text );
 226                 }
 227             }
 228             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 229
 230             UpdateBookmarksOption( p_input );
 231
 232             return VLC_SUCCESS;
 233
 234         case INPUT_CHANGE_BOOKMARK:
 235             p_bkmk = (seekpoint_t *)va_arg( args, seekpoint_t * );
 236             i_bkmk = (int)va_arg( args, int );
 237
 238             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 239             if( i_bkmk < p_input->p->i_bookmark )
 240             {
 241                 vlc_value_t val, text;
 242                 int i;
 243
 244                 p_input->p->bookmark[i_bkmk] = p_bkmk;
 245
 246                 /* Reflect the changes on the object var */
 247                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 248                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 249                 {
 250                     val.i_int = i;
 251                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 252                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 253                                 &val, &text );
 254                 }
 255             }
 256             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 257
 258             UpdateBookmarksOption( p_input );
 259
 260             return VLC_SUCCESS;
 261
 262         case INPUT_DEL_BOOKMARK:
 263             i_bkmk = (int)va_arg( args, int );
 264
 265             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 266             if( i_bkmk < p_input->p->i_bookmark )
 267             {
 268                 vlc_value_t val, text;
 269                 int i;
 270
 271                 p_bkmk = p_input->p->bookmark[i_bkmk];
 272                 TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 273                             p_bkmk );
 274                 vlc_seekpoint_Delete( 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->p->i_bookmark; i++ )
 279                 {
 280                     val.i_int = i;
 281                     text.psz_string = p_input->p->bookmark[i]->psz_name;
 282                     var_Change( p_input, "bookmark", VLC_VAR_ADDCHOICE,
 283                                 &val, &text );
 284                 }
 285                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 286
 287                 UpdateBookmarksOption( p_input );
 288
 289                 return VLC_SUCCESS;
 290             }
 291             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 292
 293             return VLC_EGENERIC;
 294
 295         case INPUT_GET_BOOKMARKS:
 296             ppp_bkmk = (seekpoint_t ***)va_arg( args, seekpoint_t *** );
 297             pi_bkmk = (int *)va_arg( args, int * );
 298
 299             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 300             if( p_input->p->i_bookmark )
 301             {
 302                 int i;
 303
 304                 *pi_bkmk = p_input->p->i_bookmark;
 305                 *ppp_bkmk = malloc( sizeof(seekpoint_t *) *
 306                                     p_input->p->i_bookmark );
 307                 for( i = 0; i < p_input->p->i_bookmark; i++ )
 308                 {
 309                     (*ppp_bkmk)[i] =
 310                         vlc_seekpoint_Duplicate(p_input->p->bookmark[i]);
 311                 }
 312
 313                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 314                 return VLC_SUCCESS;
 315             }
 316             else
 317             {
 318                 *ppp_bkmk = NULL;
 319                 *pi_bkmk = 0;
 320
 321                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 322                 return VLC_EGENERIC;
 323             }
 324             break;
 325
 326         case INPUT_CLEAR_BOOKMARKS:
 327
 328             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 329             if( p_input->p->i_bookmark )
 330             {
 331                 int i;
 332
 333                 for( i = p_input->p->i_bookmark - 1; i >= 0; i-- )
 334                 {
 335                     p_bkmk = p_input->p->bookmark[i];
 336                     TAB_REMOVE( p_input->p->i_bookmark, p_input->p->bookmark,
 337                                 p_bkmk );
 338                     vlc_seekpoint_Delete( p_bkmk );
 339                 }
 340                 var_Change( p_input, "bookmark", VLC_VAR_CLEARCHOICES, 0, 0 );
 341             }
 342             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 343
 344             UpdateBookmarksOption( p_input );
 345
 346             return VLC_SUCCESS;
 347
 348         case INPUT_SET_BOOKMARK:
 349             i_bkmk = (int)va_arg( args, int );
 350
 351             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 352             if( i_bkmk >= 0 && i_bkmk < p_input->p->i_bookmark )
 353             {
 354                 vlc_value_t pos;
 355                 int i_ret;
 356
 357                 if( p_input->p->bookmark[i_bkmk]->i_time_offset != -1 )
 358                 {
 359                     pos.i_time = p_input->p->bookmark[i_bkmk]->i_time_offset;
 360                     i_ret = var_Set( p_input, "time", pos );
 361                 }
 362                 else if( p_input->p->bookmark[i_bkmk]->i_byte_offset != -1 )
 363                 {
 364                     // don't crash on bookmarks in live streams
 365                     if( stream_Size( p_input->p->input.p_stream ) == 0 )
 366                     {
 367                         vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 368                         return VLC_EGENERIC;
 369                     }
 370                     pos.f_float = !p_input->p->input.p_stream ? 0 :
 371                         p_input->p->bookmark[i_bkmk]->i_byte_offset /
 372                         stream_Size( p_input->p->input.p_stream );
 373                     i_ret = var_Set( p_input, "position", pos );
 374                 }
 375                 else
 376                 {
 377                     pos.f_float = 0;
 378                     i_ret = var_Set( p_input, "position", pos );
 379                 }
 380
 381                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 382                 return i_ret;
 383             }
 384             else
 385             {
 386                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 387                 return VLC_EGENERIC;
 388             }
 389
 390             break;
 391
 392         case INPUT_ADD_OPTION:
 393         {
 394             const char *psz_option = va_arg( args, const char * );
 395             const char *psz_value = va_arg( args, const char * );
 396             char *str;
 397             int i;
 398
 399             if( asprintf( &str, "%s=%s", psz_option, psz_value ) == -1 )
 400                 return VLC_ENOMEM;
 401
 402             i = input_item_AddOpt( p_input->p->input.p_item, str,
 403                                   VLC_INPUT_OPTION_UNIQUE );
 404             free( str );
 405             return i;
 406         }
 407
 408         case INPUT_GET_BYTE_POSITION:
 409             pi_64 = (int64_t*)va_arg( args, int64_t * );
 410             *pi_64 = !p_input->p->input.p_stream ? 0 :
 411                 stream_Tell( p_input->p->input.p_stream );
 412             return VLC_SUCCESS;
 413
 414         case INPUT_SET_BYTE_SIZE:
 415             pi_64 = (int64_t*)va_arg( args, int64_t * );
 416             *pi_64 = !p_input->p->input.p_stream ? 0 :
 417                 stream_Size( p_input->p->input.p_stream );
 418             return VLC_SUCCESS;
 419
 420         case INPUT_GET_VIDEO_FPS:
 421         {
 422             int i;
 423             pf = (double*)va_arg( args, double * );
 424             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 425             *pf = p_input->p->input.f_fps;
 426             for( i = 0; i < p_input->p->i_slave && *pf <= 0.001; i++ )
 427                 *pf = p_input->p->slave[i]->f_fps;
 428             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 429             return VLC_SUCCESS;
 430         }
 431
 432         case INPUT_ADD_SLAVE:
 433             psz = (char*)va_arg( args, char * );
 434             if( psz && *psz )
 435             {
 436                 val.psz_string = strdup( psz );
 437                 input_ControlPush( p_input, INPUT_CONTROL_ADD_SLAVE, &val );
 438             }
 439             return VLC_SUCCESS;
 440
 441         case INPUT_GET_ATTACHMENTS: /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 442         {
 443             input_attachment_t ***ppp_attachment = (input_attachment_t***)va_arg( args, input_attachment_t *** );
 444             int *pi_attachment = (int*)va_arg( args, int * );
 445             int i;
 446
 447             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 448             if( p_input->p->i_attachment <= 0 )
 449             {
 450                 vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 451                 *ppp_attachment = NULL;
 452                 *pi_attachment = 0;
 453                 return VLC_EGENERIC;
 454             }
 455             *pi_attachment = p_input->p->i_attachment;
 456             *ppp_attachment = malloc( sizeof(input_attachment_t**) * p_input->p->i_attachment );
 457             for( i = 0; i < p_input->p->i_attachment; i++ )
 458                 (*ppp_attachment)[i] = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 459
 460             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 461             return VLC_SUCCESS;
 462         }
 463
 464         case INPUT_GET_ATTACHMENT:  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 465         {
 466             input_attachment_t **pp_attachment = (input_attachment_t**)va_arg( args, input_attachment_t ** );
 467             const char *psz_name = (const char*)va_arg( args, const char * );
 468             int i;
 469
 470             vlc_mutex_lock( &p_input->p->input.p_item->lock );
 471             for( i = 0; i < p_input->p->i_attachment; i++ )
 472             {
 473                 if( !strcmp( p_input->p->attachment[i]->psz_name, psz_name ) )
 474                 {
 475                     *pp_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i] );
 476                     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 477                     return VLC_SUCCESS;
 478                 }
 479             }
 480             *pp_attachment = NULL;
 481             vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 482             return VLC_EGENERIC;
 483         }
 484
 485         case INPUT_SET_RECORD_STATE:
 486             b_bool = (bool)va_arg( args, int );
 487             var_SetBool( p_input, "record", b_bool );
 488             return VLC_SUCCESS;
 489
 490         case INPUT_GET_RECORD_STATE:
 491             pb_bool = (bool*)va_arg( args, bool* );
 492             *pb_bool = var_GetBool( p_input, "record" );
 493             return VLC_SUCCESS;
 494
 495         case INPUT_RESTART_ES:
 496             val.i_int = (int)va_arg( args, int );
 497             input_ControlPush( p_input, INPUT_CONTROL_RESTART_ES, &val );
 498             return VLC_SUCCESS;
 499
 500         default:
 501             msg_Err( p_input, "unknown query in input_vaControl" );
 502             return VLC_EGENERIC;
 503     }
 504 }
 505
 506 static void UpdateBookmarksOption( input_thread_t *p_input )
 507 {
 508     int i, i_len = 0;
 509     char *psz_value = NULL, *psz_next = NULL;
 510
 511     vlc_mutex_lock( &p_input->p->input.p_item->lock );
 512     if( p_input->p->i_bookmark > 0 )
 513     {
 514         for( i = 0; i < p_input->p->i_bookmark; i++ )
 515         {
 516             i_len += snprintf( NULL, 0, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 517                                p_input->p->bookmark[i]->psz_name,
 518                                p_input->p->bookmark[i]->i_byte_offset,
 519                                p_input->p->bookmark[i]->i_time_offset/1000000 );
 520         }
 521         psz_value = psz_next = malloc( i_len + p_input->p->i_bookmark );
 522
 523         for( i = 0; i < p_input->p->i_bookmark; i++ )
 524         {
 525             sprintf( psz_next, "{name=%s,bytes=%"PRId64",time=%"PRId64"}",
 526                      p_input->p->bookmark[i]->psz_name,
 527                      p_input->p->bookmark[i]->i_byte_offset,
 528                      p_input->p->bookmark[i]->i_time_offset/1000000 );
 529
 530             psz_next += strlen( psz_next );
 531             if( i < p_input->p->i_bookmark - 1)
 532                 *psz_next = ','; psz_next++;
 533         }
 534     }
 535     vlc_mutex_unlock( &p_input->p->input.p_item->lock );
 536
 537     input_Control( p_input, INPUT_ADD_OPTION, "bookmarks",
 538                    psz_value ? psz_value : "" );
 539     free( psz_value );
 540 }
 541