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