include/vlc_input.h

   1 /*****************************************************************************
   2  * vlc_input.h: Core input structures
   3  *****************************************************************************
   4  * Copyright (C) 1999-2006 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Laurent Aimar <fenrir@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /* __ is need because conflict with <vlc/input.h> */
  26 #ifndef VLC_INPUT_H
  27 #define VLC_INPUT_H 1
  28
  29 /**
  30  * \file
  31  * This file defines functions, structures and enums for input objects in vlc
  32  */
  33
  34 #include <vlc_es.h>
  35 #include <vlc_meta.h>
  36 #include <vlc_epg.h>
  37 #include <vlc_events.h>
  38 #include <vlc_input_item.h>
  39
  40 #include <string.h>
  41
  42 /*****************************************************************************
  43  * Seek point: (generalisation of chapters)
  44  *****************************************************************************/
  45 struct seekpoint_t
  46 {
  47     int64_t i_byte_offset;
  48     int64_t i_time_offset;
  49     char    *psz_name;
  50 };
  51
  52 static inline seekpoint_t *vlc_seekpoint_New( void )
  53 {
  54     seekpoint_t *point = (seekpoint_t*)malloc( sizeof( seekpoint_t ) );
  55     point->i_byte_offset =
  56     point->i_time_offset = -1;
  57     point->psz_name = NULL;
  58     return point;
  59 }
  60
  61 static inline void vlc_seekpoint_Delete( seekpoint_t *point )
  62 {
  63     if( !point ) return;
  64     free( point->psz_name );
  65     free( point );
  66 }
  67
  68 static inline seekpoint_t *vlc_seekpoint_Duplicate( const seekpoint_t *src )
  69 {
  70     seekpoint_t *point = vlc_seekpoint_New();
  71     if( src->psz_name ) point->psz_name = strdup( src->psz_name );
  72     point->i_time_offset = src->i_time_offset;
  73     point->i_byte_offset = src->i_byte_offset;
  74     return point;
  75 }
  76
  77 /*****************************************************************************
  78  * Title:
  79  *****************************************************************************/
  80 typedef struct input_title_t
  81 {
  82     char        *psz_name;
  83
  84     bool        b_menu;      /* Is it a menu or a normal entry */
  85
  86     int64_t     i_length;   /* Length(microsecond) if known, else 0 */
  87     int64_t     i_size;     /* Size (bytes) if known, else 0 */
  88
  89     /* Title seekpoint */
  90     int         i_seekpoint;
  91     seekpoint_t **seekpoint;
  92
  93 } input_title_t;
  94
  95 static inline input_title_t *vlc_input_title_New(void)
  96 {
  97     input_title_t *t = (input_title_t*)malloc( sizeof( input_title_t ) );
  98
  99     t->psz_name = NULL;
 100     t->b_menu = false;
 101     t->i_length = 0;
 102     t->i_size   = 0;
 103     t->i_seekpoint = 0;
 104     t->seekpoint = NULL;
 105
 106     return t;
 107 }
 108
 109 static inline void vlc_input_title_Delete( input_title_t *t )
 110 {
 111     int i;
 112     if( t == NULL )
 113         return;
 114
 115     free( t->psz_name );
 116     for( i = 0; i < t->i_seekpoint; i++ )
 117     {
 118         free( t->seekpoint[i]->psz_name );
 119         free( t->seekpoint[i] );
 120     }
 121     free( t->seekpoint );
 122     free( t );
 123 }
 124
 125 static inline input_title_t *vlc_input_title_Duplicate( const input_title_t *t )
 126 {
 127     input_title_t *dup = vlc_input_title_New( );
 128     int i;
 129
 130     if( t->psz_name ) dup->psz_name = strdup( t->psz_name );
 131     dup->b_menu      = t->b_menu;
 132     dup->i_length    = t->i_length;
 133     dup->i_size      = t->i_size;
 134     dup->i_seekpoint = t->i_seekpoint;
 135     if( t->i_seekpoint > 0 )
 136     {
 137         dup->seekpoint = (seekpoint_t**)calloc( t->i_seekpoint,
 138                                                 sizeof(seekpoint_t*) );
 139
 140         for( i = 0; i < t->i_seekpoint; i++ )
 141         {
 142             dup->seekpoint[i] = vlc_seekpoint_Duplicate( t->seekpoint[i] );
 143         }
 144     }
 145
 146     return dup;
 147 }
 148
 149 /*****************************************************************************
 150  * Attachments
 151  *****************************************************************************/
 152 struct input_attachment_t
 153 {
 154     char *psz_name;
 155     char *psz_mime;
 156     char *psz_description;
 157
 158     int  i_data;
 159     void *p_data;
 160 };
 161
 162 static inline input_attachment_t *vlc_input_attachment_New( const char *psz_name,
 163                                                             const char *psz_mime,
 164                                                             const char *psz_description,
 165                                                             const void *p_data,
 166                                                             int i_data )
 167 {
 168     input_attachment_t *a =
 169         (input_attachment_t*)malloc( sizeof(input_attachment_t) );
 170     if( !a )
 171         return NULL;
 172     a->psz_name = strdup( psz_name ? psz_name : "" );
 173     a->psz_mime = strdup( psz_mime ? psz_mime : "" );
 174     a->psz_description = strdup( psz_description ? psz_description : "" );
 175     a->i_data = i_data;
 176     a->p_data = NULL;
 177     if( i_data > 0 )
 178     {
 179         a->p_data = malloc( i_data );
 180         if( a->p_data && p_data )
 181             memcpy( a->p_data, p_data, i_data );
 182     }
 183     return a;
 184 }
 185 static inline input_attachment_t *vlc_input_attachment_Duplicate( const input_attachment_t *a )
 186 {
 187     return vlc_input_attachment_New( a->psz_name, a->psz_mime, a->psz_description,
 188                                      a->p_data, a->i_data );
 189 }
 190 static inline void vlc_input_attachment_Delete( input_attachment_t *a )
 191 {
 192     if( !a )
 193         return;
 194     free( a->psz_name );
 195     free( a->psz_mime );
 196     free( a->psz_description );
 197     free( a->p_data );
 198     free( a );
 199 }
 200
 201 /*****************************************************************************
 202  * input defines/constants.
 203  *****************************************************************************/
 204
 205 /**
 206  * This defines private core storage for an input.
 207  */
 208 typedef struct input_thread_private_t input_thread_private_t;
 209
 210 /**
 211  * This defines an opaque input resource handler.
 212  */
 213 typedef struct input_resource_t input_resource_t;
 214
 215 /**
 216  * Main structure representing an input thread. This structure is mostly
 217  * private. The only public fields are READ-ONLY. You must use the helpers
 218  * to modify them
 219  */
 220 struct input_thread_t
 221 {
 222     VLC_COMMON_MEMBERS
 223
 224     bool b_error;
 225     bool b_eof;
 226     bool b_preparsing;
 227     bool b_dead;
 228
 229     /* All other data is input_thread is PRIVATE. You can't access it
 230      * outside of src/input */
 231     input_thread_private_t *p;
 232 };
 233
 234 /**
 235  * Record prefix string.
 236  * TODO make it configurable.
 237  */
 238 #define INPUT_RECORD_PREFIX "vlc-record-%Y-%m-%d-%Hh%Mm%Ss-$ N-$ p"
 239
 240 /*****************************************************************************
 241  * Input events and variables
 242  *****************************************************************************/
 243
 244 /**
 245  * \defgroup inputvariable Input variables
 246  *
 247  * The input provides multiples variable you can write to and/or read from.
 248  *
 249  * TODO complete the documentation.
 250  * The read only variables are:
 251  *  - "length"
 252  *  - "can-seek" (if you can seek, it doesn't say if 'bar display' has be shown
 253  *    or not, for that check position != 0.0)
 254  *  - "can-pause"
 255  *  - "can-rate"
 256  *  - "can-rewind"
 257  *  - "can-record" (if a stream can be recorded while playing)
 258  *  - "teletext-es" (list of id from the spu tracks (spu-es) that are teletext, the
 259  *                   variable value being the one currently selected, -1 if no teletext)
 260  *  - "signal-quality"
 261  *  - "signal-strength"
 262  *  - "program-scrambled" (if the current program is scrambled)
 263  *  - "cache" (level of data cached [0 .. 1])
 264  *
 265  * The read-write variables are:
 266  *  - state (\see input_state_e)
 267  *  - rate
 268  *  - position, position-offset
 269  *  - time, time-offset
 270  *  - title, next-title, prev-title
 271  *  - chapter, next-chapter, next-chapter-prev
 272  *  - program, audio-es, video-es, spu-es
 273  *  - audio-delay, spu-delay
 274  *  - bookmark (bookmark list)
 275  *  - record
 276  *  - frame-next
 277  *  - navigation (list of "title %2i")
 278  *  - "title %2i"
 279  *
 280  * The variable used for event is
 281  *  - intf-event (\see input_event_type_e)
 282  */
 283
 284 /**
 285  * Input state
 286  *
 287  * This enum is used by the variable "state"
 288  */
 289 typedef enum input_state_e
 290 {
 291     INIT_S = 0,
 292     OPENING_S,
 293     PLAYING_S,
 294     PAUSE_S,
 295     END_S,
 296     ERROR_S,
 297 } input_state_e;
 298
 299 /**
 300  * Input rate.
 301  *
 302  * It is an float used by the variable "rate" in the
 303  * range [INPUT_RATE_DEFAULT/INPUT_RATE_MAX, INPUT_RATE_DEFAULT/INPUT_RATE_MIN]
 304  * the default value being 1. It represents the ratio of playback speed to
 305  * nominal speed (bigger is faster).
 306  *
 307  * Internally, the rate is stored as a value in the range
 308  * [INPUT_RATE_MIN, INPUT_RATE_MAX].
 309  * internal rate = INPUT_RATE_DEFAULT / rate variable
 310  */
 311
 312 /**
 313  * Default rate value
 314  */
 315 #define INPUT_RATE_DEFAULT  1000
 316 /**
 317  * Minimal rate value
 318  */
 319 #define INPUT_RATE_MIN        32            /* Up to 32/1 */
 320 /**
 321  * Maximal rate value
 322  */
 323 #define INPUT_RATE_MAX     32000            /* Up to 1/32 */
 324
 325 /**
 326  * Input events
 327  *
 328  * You can catch input event by adding a callback on the variable "intf-event".
 329  * This variable is an integer that will hold a input_event_type_e value.
 330  */
 331 typedef enum input_event_type_e
 332 {
 333     /* "state" has changed */
 334     INPUT_EVENT_STATE,
 335     /* b_dead is true */
 336     INPUT_EVENT_DEAD,
 337     /* a *user* abort has been requested */
 338     INPUT_EVENT_ABORT,
 339
 340     /* "rate" has changed */
 341     INPUT_EVENT_RATE,
 342
 343     /* At least one of "position" or "time" */
 344     INPUT_EVENT_POSITION,
 345
 346     /* "length" has changed */
 347     INPUT_EVENT_LENGTH,
 348
 349     /* A title has been added or removed or selected.
 350      * It imply that chapter has changed (not chapter event is sent) */
 351     INPUT_EVENT_TITLE,
 352     /* A chapter has been added or removed or selected. */
 353     INPUT_EVENT_CHAPTER,
 354
 355     /* A program ("program") has been added or removed or selected,
 356      * or "program-scrambled" has changed.*/
 357     INPUT_EVENT_PROGRAM,
 358     /* A ES has been added or removed or selected */
 359     INPUT_EVENT_ES,
 360     /* "teletext-es" has changed */
 361     INPUT_EVENT_TELETEXT,
 362
 363     /* "record" has changed */
 364     INPUT_EVENT_RECORD,
 365
 366     /* input_item_t media has changed */
 367     INPUT_EVENT_ITEM_META,
 368     /* input_item_t info has changed */
 369     INPUT_EVENT_ITEM_INFO,
 370     /* input_item_t name has changed */
 371     INPUT_EVENT_ITEM_NAME,
 372     /* input_item_t epg has changed */
 373     INPUT_EVENT_ITEM_EPG,
 374
 375     /* Input statistics have been updated */
 376     INPUT_EVENT_STATISTICS,
 377     /* At least one of "signal-quality" or "signal-strength" has changed */
 378     INPUT_EVENT_SIGNAL,
 379
 380     /* "audio-delay" has changed */
 381     INPUT_EVENT_AUDIO_DELAY,
 382     /* "spu-delay" has changed */
 383     INPUT_EVENT_SUBTITLE_DELAY,
 384
 385     /* "bookmark" has changed */
 386     INPUT_EVENT_BOOKMARK,
 387
 388     /* cache" has changed */
 389     INPUT_EVENT_CACHE,
 390
 391     /* A audio_output_t object has been created/deleted by *the input* */
 392     INPUT_EVENT_AOUT,
 393     /* A vout_thread_t object has been created/deleted by *the input* */
 394     INPUT_EVENT_VOUT,
 395
 396 } input_event_type_e;
 397
 398 /**
 399  * Input queries
 400  */
 401 enum input_query_e
 402 {
 403     /* input variable "position" */
 404     INPUT_GET_POSITION,         /* arg1= double *       res=    */
 405     INPUT_SET_POSITION,         /* arg1= double         res=can fail    */
 406
 407     /* input variable "length" */
 408     INPUT_GET_LENGTH,           /* arg1= int64_t *      res=can fail    */
 409
 410     /* input variable "time" */
 411     INPUT_GET_TIME,             /* arg1= int64_t *      res=    */
 412     INPUT_SET_TIME,             /* arg1= int64_t        res=can fail    */
 413
 414     /* input variable "rate" (nominal is INPUT_RATE_DEFAULT) */
 415     INPUT_GET_RATE,             /* arg1= int *          res=    */
 416     INPUT_SET_RATE,             /* arg1= int            res=can fail    */
 417
 418     /* input variable "state" */
 419     INPUT_GET_STATE,            /* arg1= int *          res=    */
 420     INPUT_SET_STATE,            /* arg1= int            res=can fail    */
 421
 422     /* input variable "audio-delay" and "sub-delay" */
 423     INPUT_GET_AUDIO_DELAY,      /* arg1 = int* res=can fail */
 424     INPUT_SET_AUDIO_DELAY,      /* arg1 = int  res=can fail */
 425     INPUT_GET_SPU_DELAY,        /* arg1 = int* res=can fail */
 426     INPUT_SET_SPU_DELAY,        /* arg1 = int  res=can fail */
 427
 428     /* Menu navigation */
 429     INPUT_NAV_ACTIVATE,
 430     INPUT_NAV_UP,
 431     INPUT_NAV_DOWN,
 432     INPUT_NAV_LEFT,
 433     INPUT_NAV_RIGHT,
 434
 435     /* Meta datas */
 436     INPUT_ADD_INFO,   /* arg1= char* arg2= char* arg3=...     res=can fail */
 437     INPUT_REPLACE_INFOS,/* arg1= info_category_t *            res=cannot fail */
 438     INPUT_MERGE_INFOS,/* arg1= info_category_t *              res=cannot fail */
 439     INPUT_GET_INFO,   /* arg1= char* arg2= char* arg3= char** res=can fail */
 440     INPUT_DEL_INFO,   /* arg1= char* arg2= char*              res=can fail */
 441     INPUT_SET_NAME,   /* arg1= char* res=can fail    */
 442
 443     /* Input properties */
 444     INPUT_GET_VIDEO_FPS,         /* arg1= double *        res=can fail */
 445
 446     /* bookmarks */
 447     INPUT_GET_BOOKMARK,    /* arg1= seekpoint_t *               res=can fail */
 448     INPUT_GET_BOOKMARKS,   /* arg1= seekpoint_t *** arg2= int * res=can fail */
 449     INPUT_CLEAR_BOOKMARKS, /* res=can fail */
 450     INPUT_ADD_BOOKMARK,    /* arg1= seekpoint_t *  res=can fail   */
 451     INPUT_CHANGE_BOOKMARK, /* arg1= seekpoint_t * arg2= int * res=can fail   */
 452     INPUT_DEL_BOOKMARK,    /* arg1= seekpoint_t *  res=can fail   */
 453     INPUT_SET_BOOKMARK,    /* arg1= int  res=can fail    */
 454
 455     /* titles */
 456     INPUT_GET_TITLE_INFO,     /* arg1=input_title_t** arg2= int * res=can fail */
 457
 458     /* Attachments */
 459     INPUT_GET_ATTACHMENTS, /* arg1=input_attachment_t***, arg2=int*  res=can fail */
 460     INPUT_GET_ATTACHMENT,  /* arg1=input_attachment_t**, arg2=char*  res=can fail */
 461
 462     /* On the fly input slave */
 463     INPUT_ADD_SLAVE,       /* arg1= const char * */
 464     INPUT_ADD_SUBTITLE,    /* arg1= const char *, arg2=bool b_check_extension */
 465
 466     /* On the fly record while playing */
 467     INPUT_SET_RECORD_STATE, /* arg1=bool    res=can fail */
 468     INPUT_GET_RECORD_STATE, /* arg1=bool*   res=can fail */
 469
 470     /* ES */
 471     INPUT_RESTART_ES,       /* arg1=int (-AUDIO/VIDEO/SPU_ES for the whole category) */
 472
 473     /* Input ressources
 474      * XXX You must call vlc_object_release as soon as possible */
 475     INPUT_GET_AOUT,         /* arg1=audio_output_t **              res=can fail */
 476     INPUT_GET_VOUTS,        /* arg1=vout_thread_t ***, size_t *        res=can fail */
 477     INPUT_GET_ES_OBJECTS,   /* arg1=int id, vlc_object_t **dec, vout_thread_t **, audio_output_t ** */
 478
 479     /* External clock managments */
 480     INPUT_GET_PCR_SYSTEM,   /* arg1=mtime_t *, arg2=mtime_t *       res=can fail */
 481     INPUT_MODIFY_PCR_SYSTEM,/* arg1=int absolute, arg2=mtime_t      res=can fail */
 482 };
 483
 484 /** @}*/
 485
 486 /*****************************************************************************
 487  * Prototypes
 488  *****************************************************************************/
 489
 490 VLC_API input_thread_t * input_Create( vlc_object_t *p_parent, input_item_t *, const char *psz_log, input_resource_t * ) VLC_USED;
 491 #define input_Create(a,b,c,d) input_Create(VLC_OBJECT(a),b,c,d)
 492
 493 VLC_API input_thread_t * input_CreateAndStart( vlc_object_t *p_parent, input_item_t *, const char *psz_log ) VLC_USED;
 494 #define input_CreateAndStart(a,b,c) input_CreateAndStart(VLC_OBJECT(a),b,c)
 495
 496 VLC_API int input_Start( input_thread_t * );
 497
 498 VLC_API void input_Stop( input_thread_t *, bool b_abort );
 499
 500 VLC_API int input_Read( vlc_object_t *, input_item_t * );
 501 #define input_Read(a,b) input_Read(VLC_OBJECT(a),b)
 502
 503 VLC_API int input_vaControl( input_thread_t *, int i_query, va_list  );
 504
 505 VLC_API int input_Control( input_thread_t *, int i_query, ...  );
 506
 507 VLC_API void input_Close( input_thread_t * );
 508 void input_Join( input_thread_t * );
 509 void input_Release( input_thread_t * );
 510
 511 /**
 512  * Get the input item for an input thread
 513  *
 514  * You have to keep a reference to the input or to the input_item_t until
 515  * you do not need it anymore.
 516  */
 517 VLC_API input_item_t* input_GetItem( input_thread_t * ) VLC_USED;
 518
 519 /**
 520  * It will return the current state of the input.
 521  * Provided for convenience.
 522  */
 523 static inline input_state_e input_GetState( input_thread_t * p_input )
 524 {
 525     input_state_e state = INIT_S;
 526     input_Control( p_input, INPUT_GET_STATE, &state );
 527     return state;
 528 }
 529 /**
 530  * It will add a new subtitle source to the input.
 531  * Provided for convenience.
 532  */
 533 static inline int input_AddSubtitle( input_thread_t *p_input, const char *psz_url, bool b_check_extension )
 534 {
 535     return input_Control( p_input, INPUT_ADD_SUBTITLE, psz_url, b_check_extension );
 536 }
 537
 538 /**
 539  * Return one of the video output (if any). If possible, you should use
 540  * INPUT_GET_VOUTS directly and process _all_ video outputs instead.
 541  * @param p_input an input thread from which to get a video output
 542  * @return NULL on error, or a video output thread pointer (which needs to be
 543  * released with vlc_object_release()).
 544  */
 545 static inline vout_thread_t *input_GetVout( input_thread_t *p_input )
 546 {
 547      vout_thread_t **pp_vout, *p_vout;
 548      size_t i_vout;
 549
 550      if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 551          return NULL;
 552
 553      for( size_t i = 1; i < i_vout; i++ )
 554          vlc_object_release( (vlc_object_t *)(pp_vout[i]) );
 555
 556      p_vout = (i_vout >= 1) ? pp_vout[0] : NULL;
 557      free( pp_vout );
 558      return p_vout;
 559 }
 560
 561 /**
 562  * Return the audio output (if any) associated with an input.
 563  * @param p_input an input thread
 564  * @return NULL on error, or the audio output (which needs to be
 565  * released with vlc_object_release()).
 566  */
 567 static inline audio_output_t *input_GetAout( input_thread_t *p_input )
 568 {
 569      audio_output_t *p_aout;
 570      return input_Control( p_input, INPUT_GET_AOUT, &p_aout ) ? NULL : p_aout;
 571 }
 572
 573 /**
 574  * Returns the objects associated to an ES.
 575  *
 576  * You must release all non NULL object using vlc_object_release.
 577  * You may set pointer of pointer to NULL to avoid retreiving it.
 578  */
 579 static inline int input_GetEsObjects( input_thread_t *p_input, int i_id,
 580                                       vlc_object_t **pp_decoder,
 581                                       vout_thread_t **pp_vout, audio_output_t **pp_aout )
 582 {
 583     return input_Control( p_input, INPUT_GET_ES_OBJECTS, i_id,
 584                           pp_decoder, pp_vout, pp_aout );
 585 }
 586
 587 /**
 588  * \see input_clock_GetSystemOrigin
 589  */
 590 static inline int input_GetPcrSystem( input_thread_t *p_input, mtime_t *pi_system, mtime_t *pi_delay )
 591 {
 592     return input_Control( p_input, INPUT_GET_PCR_SYSTEM, pi_system, pi_delay );
 593 }
 594 /**
 595  * \see input_clock_ChangeSystemOrigin
 596  */
 597 static inline int input_ModifyPcrSystem( input_thread_t *p_input, bool b_absolute, mtime_t i_system )
 598 {
 599     return input_Control( p_input, INPUT_MODIFY_PCR_SYSTEM, b_absolute, i_system );
 600 }
 601
 602 /* */
 603 VLC_API decoder_t * input_DecoderCreate( vlc_object_t *, es_format_t *, input_resource_t * ) VLC_USED;
 604 VLC_API void input_DecoderDelete( decoder_t * );
 605 VLC_API void input_DecoderDecode( decoder_t *, block_t *, bool b_do_pace );
 606
 607 /**
 608  * This function creates a sane filename path.
 609  */
 610 VLC_API char * input_CreateFilename( vlc_object_t *, const char *psz_path, const char *psz_prefix, const char *psz_extension ) VLC_USED;
 611
 612 /**
 613  * It creates an empty input resource handler.
 614  *
 615  * The given object MUST stay alive as long as the input_resource_t is
 616  * not deleted.
 617  */
 618 VLC_API input_resource_t * input_resource_New( vlc_object_t * ) VLC_USED;
 619
 620 /**
 621  * It releases an input resource.
 622  */
 623 VLC_API void input_resource_Release( input_resource_t * );
 624
 625 /**
 626  * Forcefully destroys the video output (e.g. when the playlist is stopped).
 627  */
 628 VLC_API void input_resource_TerminateVout( input_resource_t * );
 629
 630 /**
 631  * This function releases all resources (object).
 632  */
 633 VLC_API void input_resource_Terminate( input_resource_t * );
 634
 635 /**
 636  * \return the current audio output if any.
 637  * Use vlc_object_release() to drop the reference.
 638  */
 639 VLC_API audio_output_t *input_resource_HoldAout( input_resource_t * );
 640
 641 #endif