input.c 99.5 KB
Newer Older
1 2
/*****************************************************************************
 * input.c: input thread
3
 *****************************************************************************
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
4
 * Copyright (C) 1998-2007 VLC authors and VideoLAN
5
 * $Id$
6
 *
7
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8
 *          Laurent Aimar <fenrir@via.ecp.fr>
9
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
10 11 12
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
13
 * (at your option) any later version.
14
 *
15 16
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
17 18
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
19
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
20 21 22
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
24

25
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
26
 * Preamble
27
 *****************************************************************************/
28 29 30 31
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

32
#include <vlc_common.h>
33

Christophe Mutricy's avatar
Christophe Mutricy committed
34
#include <limits.h>
35
#include <assert.h>
36
#include <errno.h>
37
#include <math.h>
38
#include <sys/stat.h>
39

40
#include "input_internal.h"
41
#include "event.h"
42
#include "es_out.h"
43
#include "es_out_timeshift.h"
44
#include "access.h"
45
#include "demux.h"
46
#include "stream.h"
47
#include "item.h"
48
#include "resource.h"
49

Clément Stenac's avatar
Clément Stenac committed
50
#include <vlc_sout.h>
51
#include <vlc_dialog.h>
Clément Stenac's avatar
Clément Stenac committed
52 53
#include <vlc_url.h>
#include <vlc_charset.h>
54
#include <vlc_fs.h>
55
#include <vlc_strings.h>
56
#include <vlc_modules.h>
57

58
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
59
 * Local prototypes
60
 *****************************************************************************/
61 62
static void Destructor( input_thread_t * p_input );

63
static  void *Run            ( void * );
64

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
65
static input_thread_t * Create  ( vlc_object_t *, input_item_t *,
66
                                  const char *, bool, input_resource_t * );
67
static  int             Init    ( input_thread_t *p_input );
68
static void             End     ( input_thread_t *p_input );
69
static void             MainLoop( input_thread_t *p_input, bool b_interactive );
70

71
static inline int ControlPop( input_thread_t *, int *, vlc_value_t *, mtime_t i_deadline, bool b_postpone_seek );
72
static void       ControlRelease( int i_type, vlc_value_t val );
73
static bool       ControlIsSeekRequest( int i_type );
74
static bool       Control( input_thread_t *, int, vlc_value_t );
75
static void       ControlPause( input_thread_t *, mtime_t );
76

77 78
static int  UpdateTitleSeekpointFromDemux( input_thread_t * );
static void UpdateGenericFromDemux( input_thread_t * );
79
static void UpdateTitleListfromDemux( input_thread_t * );
Michel Kaempf's avatar
Michel Kaempf committed
80

81
static void MRLSections( const char *, int *, int *, int *, int *);
82 83

static input_source_t *InputSourceNew( input_thread_t *);
84
static int  InputSourceInit( input_thread_t *, input_source_t *,
85 86
                             const char *, const char *psz_forced_demux,
                             bool b_in_can_fail );
87
static void InputSourceClean( input_source_t * );
Laurent Aimar's avatar
Laurent Aimar committed
88 89
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

90 91
/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
92
static void SlaveDemux( input_thread_t *p_input );
93
static void SlaveSeek( input_thread_t *p_input );
94

95
static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta );
96
static void InputUpdateMeta( input_thread_t *p_input, demux_t *p_demux );
97 98 99
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char *psz_access, const char *psz_path );
100

101 102
static void AppendAttachment( int *pi_attachment, input_attachment_t ***ppp_attachment, demux_t ***ppp_attachment_demux,
                              int i_new, input_attachment_t **pp_new, demux_t *p_demux );
103

104 105 106
enum {
    SUB_NOFLAG = 0x00,
    SUB_FORCED = 0x01,
107
    SUB_CANFAIL = 0x02,
108
};
109

110 111
static void input_SubtitleAdd( input_thread_t *, const char *, unsigned );
static void input_SubtitleFileAdd( input_thread_t *, char *, unsigned );
112 113
static void input_ChangeState( input_thread_t *p_input, int i_state ); /* TODO fix name */

114
#undef input_Create
115 116 117 118 119 120 121 122 123 124 125 126
/**
 * Create a new input_thread_t.
 *
 * You need to call input_Start on it when you are done
 * adding callback on the variables/events you want to monitor.
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \param psz_log an optional prefix for this input logs
 * \param p_resource an optional input ressource
 * \return a pointer to the spawned input thread
 */
127 128 129
input_thread_t *input_Create( vlc_object_t *p_parent,
                              input_item_t *p_item,
                              const char *psz_log, input_resource_t *p_resource )
130 131 132 133
{
    return Create( p_parent, p_item, psz_log, false, p_resource );
}

134
#undef input_CreateAndStart
135 136 137 138 139 140 141
/**
 * Create a new input_thread_t and start it.
 *
 * Provided for convenience.
 *
 * \see input_Create
 */
142 143
input_thread_t *input_CreateAndStart( vlc_object_t *p_parent,
                                      input_item_t *p_item, const char *psz_log )
144
{
145
    input_thread_t *p_input = input_Create( p_parent, p_item, psz_log, NULL );
146 147 148 149 150 151 152 153 154

    if( input_Start( p_input ) )
    {
        vlc_object_release( p_input );
        return NULL;
    }
    return p_input;
}

155
#undef input_Read
156
/**
157
 * Initialize an input thread and run it until it stops by itself.
158 159 160 161 162
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \return an error code, VLC_SUCCESS on success
 */
163
int input_Read( vlc_object_t *p_parent, input_item_t *p_item )
164
{
165
    input_thread_t *p_input = Create( p_parent, p_item, NULL, false, NULL );
166 167 168
    if( !p_input )
        return VLC_EGENERIC;

169 170
    if( !Init( p_input ) )
    {
171
        MainLoop( p_input, false );
172 173 174 175
        End( p_input );
    }

    vlc_object_release( p_input );
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
    return VLC_SUCCESS;
}

/**
 * Initialize an input and initialize it to preparse the item
 * This function is blocking. It will only accept parsing regular files.
 *
 * \param p_parent a vlc_object_t
 * \param p_item an input item
 * \return VLC_SUCCESS or an error
 */
int input_Preparse( vlc_object_t *p_parent, input_item_t *p_item )
{
    input_thread_t *p_input;

    /* Allocate descriptor */
    p_input = Create( p_parent, p_item, NULL, true, NULL );
    if( !p_input )
        return VLC_EGENERIC;

196 197 198 199 200
    if( !Init( p_input ) ) {
        /* if the demux is a playlist, call Mainloop that will call
         * demux_Demux in order to fetch sub items */
        bool b_is_playlist = false;

201 202
        if ( input_item_ShouldPreparseSubItems( p_item )
          && demux_Control( p_input->p->input.p_demux,
203 204 205 206 207
                            DEMUX_IS_PLAYLIST,
                            &b_is_playlist ) )
            b_is_playlist = false;
        if( b_is_playlist )
            MainLoop( p_input, false );
208
        End( p_input );
209
    }
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225

    vlc_object_release( p_input );

    return VLC_SUCCESS;
}

/**
 * Start a input_thread_t created by input_Create.
 *
 * You must not start an already running input_thread_t.
 *
 * \param the input thread to start
 */
int input_Start( input_thread_t *p_input )
{
    /* Create thread and wait for its readiness. */
226 227 228
    p_input->p->is_running = !vlc_clone( &p_input->p->thread,
                                         Run, p_input, VLC_THREAD_PRIORITY_INPUT );
    if( !p_input->p->is_running )
229 230 231 232 233 234 235 236 237 238 239 240 241
    {
        input_ChangeState( p_input, ERROR_S );
        msg_Err( p_input, "cannot create input thread" );
        return VLC_EGENERIC;
    }
    return VLC_SUCCESS;
}

/**
 * Request a running input thread to stop and die
 *
 * \param p_input the input thread to stop
 */
242
void input_Stop( input_thread_t *p_input )
243 244 245 246
{
    /* Set die for input and ALL of this childrens (even (grand-)grand-childrens)
     * It is needed here even if it is done in INPUT_CONTROL_SET_DIE handler to
     * unlock the control loop */
247
    ObjectKillChildrens( VLC_OBJECT(p_input) );
248 249 250
    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
}

251 252 253 254 255 256 257 258 259 260 261
void input_Join( input_thread_t *p_input )
{
    if( p_input->p->is_running )
        vlc_join( p_input->p->thread, NULL );
}

void input_Release( input_thread_t *p_input )
{
    vlc_object_release( p_input );
}

Laurent Aimar's avatar
Laurent Aimar committed
262 263 264 265 266
/**
 * Close an input
 *
 * It does not call input_Stop itself.
 */
267
void input_Close( input_thread_t *p_input )
Laurent Aimar's avatar
Laurent Aimar committed
268
{
269 270
    input_Join( p_input );
    input_Release( p_input );
Laurent Aimar's avatar
Laurent Aimar committed
271 272
}

273 274 275 276 277 278 279 280 281 282 283 284
/**
 * Get the item from an input thread
 * FIXME it does not increase ref count of the item.
 * if it is used after p_input is destroyed nothing prevent it from
 * being freed.
 */
input_item_t *input_GetItem( input_thread_t *p_input )
{
    assert( p_input && p_input->p );
    return p_input->p->p_item;
}

285
/*****************************************************************************
286 287
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
288
 *
Laurent Aimar's avatar
Laurent Aimar committed
289
 * XXX Do not forget to update vlc_input.h if you add new variables.
290
 *****************************************************************************/
291
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
292
                               const char *psz_header, bool b_quick,
293
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
294
{
295
    input_thread_t *p_input = NULL;                 /* thread descriptor */
296
    int i;
297

298
    /* Allocate descriptor */
299
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ), "input" );
300
    if( p_input == NULL )
301
        return NULL;
302 303 304 305 306 307

    /* Construct a nice name for the input timer */
    char psz_timer_name[255];
    char * psz_name = input_item_GetName( p_item );
    snprintf( psz_timer_name, sizeof(psz_timer_name),
              "input launching for '%s'", psz_name );
308 309 310

    msg_Dbg( p_input, "Creating an input for '%s'", psz_name);

311 312
    free( psz_name );

313 314
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
315 316
    {
        vlc_object_release( p_input );
317
        return NULL;
318
    }
319

320
    /* Parse input options */
321
    input_item_ApplyOptions( VLC_OBJECT(p_input), p_item );
322

323
    p_input->b_preparsing = b_quick;
324
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
325

326
    /* Init Common fields */
327
    p_input->b_eof = false;
328
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
329
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
330
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
331
    p_input->p->i_stop  = 0;
332
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
333
    p_input->p->i_title = 0;
334
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
335
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
336
    p_input->p->i_state = INIT_S;
337
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
338
    p_input->p->b_recording = false;
339 340
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
341
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
342
    p_input->p->attachment_demux = NULL;
343
    p_input->p->p_sout   = NULL;
344
    p_input->p->b_out_pace_control = false;
345

Pierre's avatar
Pierre committed
346
    vlc_gc_incref( p_item ); /* Released in Destructor() */
347 348 349
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
350
    p_input->p->input.p_demux  = NULL;
351
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
352 353 354
    p_input->p->input.i_title  = 0;
    p_input->p->input.title    = NULL;
    p_input->p->input.i_title_offset = p_input->p->input.i_seekpoint_offset = 0;
355 356 357 358
    p_input->p->input.b_can_pace_control = true;
    p_input->p->input.b_can_rate_control = true;
    p_input->p->input.b_rescale_ts = true;
    p_input->p->input.b_eof = false;
Clément Stenac's avatar
Clément Stenac committed
359

360
    vlc_mutex_lock( &p_item->lock );
361 362

    if( !p_item->p_stats )
363
        p_item->p_stats = stats_NewInputStats( p_input );
364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383

    /* setup the preparse depth of the item
     * if we are preparsing, use the i_preparse_depth of the parent item */
    if( !p_input->b_preparsing )
    {
        char *psz_rec = var_InheritString( p_parent, "recursive" );

        if( psz_rec != NULL )
        {
            if ( !strcasecmp( psz_rec, "none" ) )
                p_item->i_preparse_depth = 0;
            else if ( !strcasecmp( psz_rec, "collapse" ) )
                p_item->i_preparse_depth = 1;
            else
                p_item->i_preparse_depth = -1; /* default is expand */
            free (psz_rec);
        } else
            p_item->i_preparse_depth = -1;
    }

384
    vlc_mutex_unlock( &p_item->lock );
385

386
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
387 388
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
389

390
    /* */
391
    if( p_resource )
392 393
    {
        p_input->p->p_resource_private = NULL;
394
        p_input->p->p_resource = input_resource_Hold( p_resource );
395
    }
396
    else
397 398
    {
        p_input->p->p_resource_private = input_resource_New( VLC_OBJECT( p_input ) );
399
        p_input->p->p_resource = input_resource_Hold( p_input->p->p_resource_private );
400
    }
401
    input_resource_SetInput( p_input->p->p_resource, p_input );
402

403
    /* Init control buffer */
404
    vlc_mutex_init( &p_input->p->lock_control );
405
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
406
    p_input->p->i_control = 0;
407
    p_input->p->is_running = false;
408

409 410
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
411

412
    /* Create Objects variables for public Get and Set */
413
    input_ControlVarInit( p_input );
414

415
    /* */
416
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
417
    {
418 419
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
420
        {
421 422
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
423
            psz_parser = psz_bookmarks;
424
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
425
            {
426
                 seekpoint_t *p_seekpoint;
427 428 429 430 431 432 433 434
                 char backup;
                 psz_start++;
                 psz_end = strchr( psz_start, '}' );
                 if( !psz_end ) break;
                 psz_parser = psz_end + 1;
                 backup = *psz_parser;
                 *psz_parser = 0;
                 *psz_end = ',';
435 436

                 p_seekpoint = vlc_seekpoint_New();
437 438 439 440 441
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
442
                         p_seekpoint->psz_name = strdup(psz_start + 5);
443 444 445 446 447 448 449
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
450
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
Ilkka Ollakka's avatar
Ilkka Ollakka committed
451
                                                        CLOCK_FREQ;
452 453
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
454
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
455
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
456 457 458 459 460
                                  p_seekpoint->psz_name, p_seekpoint->i_byte_offset,
                                  p_seekpoint->i_time_offset );
                input_Control( p_input, INPUT_ADD_BOOKMARK, p_seekpoint );
                vlc_seekpoint_Delete( p_seekpoint );
                *psz_parser = backup;
Gildas Bazin's avatar
Gildas Bazin committed
461
            }
462
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
463 464 465
        }
    }

466
    /* Remove 'Now playing' info as it is probably outdated */
467
    input_item_SetNowPlaying( p_item, NULL );
468
    input_item_SetESNowPlaying( p_item, NULL );
469
    input_SendEventMeta( p_input );
470

471 472 473 474
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

475 476 477 478
    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;

479
    /* */
480
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
481
    vlc_mutex_init( &p_input->p->counters.counters_lock );
482

483 484 485
    p_input->p->p_es_out_display = input_EsOutNew( p_input, p_input->p->i_rate );
    p_input->p->p_es_out = NULL;

486 487 488
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

489 490 491
    return p_input;
}

492 493 494 495
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
496
{
497
#ifndef NDEBUG
498
    char * psz_name = input_item_GetName( p_input->p->p_item );
499 500 501 502
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

503 504 505
    if( p_input->p->p_es_out_display )
        es_out_Delete( p_input->p->p_es_out_display );

506 507
    if( p_input->p->p_resource )
        input_resource_Release( p_input->p->p_resource );
508
    if( p_input->p->p_resource_private )
509
        input_resource_Release( p_input->p->p_resource_private );
510

511
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
512

513 514
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

515
    for( int i = 0; i < p_input->p->i_control; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
516 517 518 519
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }
520

521
    vlc_cond_destroy( &p_input->p->wait_control );
522 523
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
524
}
525

526
/*****************************************************************************
527
 * Run: main thread loop
528 529
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
530
 *****************************************************************************/
531
static void *Run( void *obj )
Michel Kaempf's avatar
Michel Kaempf committed
532
{
533
    input_thread_t *p_input = (input_thread_t *)obj;
534
    const int canc = vlc_savecancel();
535

536 537
    if( !Init( p_input ) )
    {
538 539 540 541 542 543
        if( var_InheritBool( p_input, "start-paused" ) )
        {
            const mtime_t i_control_date = mdate();
            ControlPause( p_input, i_control_date );
        }

544
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
545

546 547 548
        /* Clean up */
        End( p_input );
    }
549

550
    input_SendEventDead( p_input );
551

552
    vlc_restorecancel( canc );
553
    return NULL;
554 555 556 557 558
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
559 560 561 562 563

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
564
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, mtime_t i_start_mdate )
565
{
566
    int i_ret;
567

568
    *pb_changed = false;
569

Laurent Aimar's avatar
Laurent Aimar committed
570
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
571
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
572 573
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
574
        i_ret = demux_Demux( p_input->p->input.p_demux );
575 576

    if( i_ret > 0 )
577
    {
578
        if( p_input->p->input.p_demux->info.i_update )
579
        {
580 581 582 583 584
            if( p_input->p->input.p_demux->info.i_update & INPUT_UPDATE_TITLE_LIST )
            {
                UpdateTitleListfromDemux( p_input );
                p_input->p->input.p_demux->info.i_update &= ~INPUT_UPDATE_TITLE_LIST;
            }
585 586 587 588 589 590
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
591 592
        }
    }
593

594 595
    if( i_ret == 0 )    /* EOF */
    {
596 597
        msg_Dbg( p_input, "EOF reached" );
        p_input->p->input.b_eof = true;
598
        es_out_Eos(p_input->p->p_es_out);
599 600 601 602 603 604 605
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
606
        SlaveDemux( p_input );
607 608
}

609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645
static int MainLoopTryRepeat( input_thread_t *p_input, mtime_t *pi_start_mdate )
{
    int i_repeat = var_GetInteger( p_input, "input-repeat" );
    if( i_repeat == 0 )
        return VLC_EGENERIC;

    vlc_value_t val;

    msg_Dbg( p_input, "repeating the same input (%d)", i_repeat );
    if( i_repeat > 0 )
    {
        i_repeat--;
        var_SetInteger( p_input, "input-repeat", i_repeat );
    }

    /* Seek to start title/seekpoint */
    val.i_int = p_input->p->input.i_title_start -
        p_input->p->input.i_title_offset;
    if( val.i_int < 0 || val.i_int >= p_input->p->input.i_title )
        val.i_int = 0;
    input_ControlPush( p_input,
                       INPUT_CONTROL_SET_TITLE, &val );

    val.i_int = p_input->p->input.i_seekpoint_start -
        p_input->p->input.i_seekpoint_offset;
    if( val.i_int > 0 /* TODO: check upper boundary */ )
        input_ControlPush( p_input,
                           INPUT_CONTROL_SET_SEEKPOINT, &val );

    /* Seek to start position */
    if( p_input->p->i_start > 0 )
    {
        val.i_time = p_input->p->i_start;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &val );
    }
    else
    {
646
        val.f_float = 0.f;
647 648 649 650 651 652 653 654
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

    /* */
    *pi_start_mdate = mdate();
    return VLC_SUCCESS;
}

655
/**
656
 * Update timing infos and statistics.
657
 */
658
static void MainLoopStatistics( input_thread_t *p_input )
659
{
660 661 662
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
663 664

    /* update input status variables */
665
    if( demux_Control( p_input->p->input.p_demux,
666 667
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
668

669
    if( demux_Control( p_input->p->input.p_demux,
670 671
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
672
    p_input->p->i_time = i_time;
673 674

    if( demux_Control( p_input->p->input.p_demux,
675 676
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
677

678
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
679 680 681 682

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
683
    p_input->p->bookmark.i_byte_offset = -1;
684
    vlc_mutex_unlock( &p_input->p->p_item->lock );
685

686
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
687
    input_SendEventStatistics( p_input );
688 689 690 691 692 693
}

/**
 * MainLoop
 * The main input loop.
 */
694
static void MainLoop( input_thread_t *p_input, bool b_interactive )
695 696
{
    mtime_t i_start_mdate = mdate();
697
    mtime_t i_intf_update = 0;
698
    mtime_t i_last_seek_mdate = 0;
699 700
    bool b_pause_after_eof = b_interactive &&
                             var_CreateGetBool( p_input, "play-and-pause" );
701

702
    while( vlc_object_alive( p_input ) && !p_input->b_error )
703
    {
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
704
        mtime_t i_wakeup = -1;
705
        bool b_paused = p_input->p->i_state == PAUSE_S;
Laurent Aimar's avatar
Laurent Aimar committed
706
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
707 708
         * is paused -> this may cause problem with some of them
         * The same problem can be seen when seeking while paused */
709 710
        if( b_paused )
            b_paused = !es_out_GetBuffering( p_input->p->p_es_out ) || p_input->p->input.b_eof;
711 712

        if( !b_paused )
713
        {
714 715
            if( !p_input->p->input.b_eof )
            {
716
                bool b_force_update = false;
717

718
                MainLoopDemux( p_input, &b_force_update, i_start_mdate );
719
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
720 721 722

                if( b_force_update )
                    i_intf_update = 0;
723
            }
724
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
725 726 727 728
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
729 730 731
            /* Pause after eof only if the input is pausable.
             * This way we won't trigger timeshifting for nothing */
            else if( b_pause_after_eof && p_input->p->b_can_pause )
732
            {
733 734
                vlc_value_t val = { .i_int = PAUSE_S };

735 736 737 738 739
                msg_Dbg( p_input, "pausing at EOF (pause after each)");
                Control( p_input, INPUT_CONTROL_SET_STATE, val );

                b_paused = true;
            }
740 741
            else
            {
742 743
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
744
                b_pause_after_eof = var_GetBool( p_input, "play-and-pause" );
745
            }
746 747 748 749 750 751 752 753

            /* Update interface and statistics */
            mtime_t now = mdate();
            if( now >= i_intf_update )
            {
                MainLoopStatistics( p_input );
                i_intf_update = now + INT64_C(250000);
            }
754
        }
755

756 757 758
        /* Handle control */
        for( ;; )
        {
759
            mtime_t i_deadline = i_wakeup;
760 761 762 763 764 765

            /* Postpone seeking until ES buffering is complete or at most
             * 125 ms. */
            bool b_postpone = es_out_GetBuffering( p_input->p->p_es_out )
                            && !p_input->p->input.b_eof;
            if( b_postpone )
766
            {
767 768 769 770
                mtime_t now = mdate();

                /* Recheck ES buffer level every 20 ms when seeking */
                if( now < i_last_seek_mdate + INT64_C(125000)
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
771
                 && (i_deadline < 0 || i_deadline > now + INT64_C(20000)) )
772 773 774 775
                    i_deadline = now + INT64_C(20000);
                else
                    b_postpone = false;
            }
776

777 778
            int i_type;
            vlc_value_t val;
779

780 781 782 783 784 785
            if( ControlPop( p_input, &i_type, &val, i_deadline, b_postpone ) )
            {
                if( b_postpone )
                    continue;
                break; /* Wake-up time reached */
            }
786

787
#ifndef NDEBUG
788
            msg_Dbg( p_input, "control type=%d", i_type );
789
#endif
790 791 792 793 794
            if( Control( p_input, i_type, val ) )
            {
                if( ControlIsSeekRequest( i_type ) )
                    i_last_seek_mdate = mdate();
                i_intf_update = 0;
795
            }
796

797
            /* Update the wakeup time */
798
            if( i_wakeup != 0 )
799
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
800
        }
801
    }
802

803
    if( !p_input->b_error )
804
        input_ChangeState( p_input, END_S );
805 806
}

807
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
808
{
809
    if( p_input->b_preparsing ) return;
810

811
    /* Prepare statistics */
812 813
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
814
    if( libvlc_stats( p_input ) )
815
    {
816 817 818 819 820 821 822 823 824 825 826 827 828 829
        INIT_COUNTER( read_bytes, COUNTER );
        INIT_COUNTER( read_packets, COUNTER );
        INIT_COUNTER( demux_read, COUNTER );
        INIT_COUNTER( input_bitrate, DERIVATIVE );
        INIT_COUNTER( demux_bitrate, DERIVATIVE );
        INIT_COUNTER( demux_corrupted, COUNTER );
        INIT_COUNTER( demux_discontinuity, COUNTER );
        INIT_COUNTER( played_abuffers, COUNTER );
        INIT_COUNTER( lost_abuffers, COUNTER );
        INIT_COUNTER( displayed_pictures, COUNTER );
        INIT_COUNTER( lost_pictures, COUNTER );
        INIT_COUNTER( decoded_audio, COUNTER );
        INIT_COUNTER( decoded_video, COUNTER );
        INIT_COUNTER( decoded_sub, COUNTER );
830 831 832
        p_input->p->counters.p_sout_send_bitrate = NULL;
        p_input->p->counters.p_sout_sent_packets = NULL;
        p_input->p->counters.p_sout_sent_bytes = NULL;
833
    }
834
}
835

836
#ifdef ENABLE_SOUT
837 838
static int InitSout( input_thread_t * p_input )
{
839 840
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
841 842

    /* Find a usable sout and attach it to p_input */
843
    char *psz = var_GetNonEmptyString( p_input, "sout" );
844
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
845
    {
846
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
847
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
848
        {
849 850 851 852 853
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
854
        }
855
        if( libvlc_stats( p_input ) )
856
        {
857 858 859
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
860
        }
861
    }
862
    else
863
    {
864
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
865
    }
866
    free( psz );
867

868 869
    return VLC_SUCCESS;
}
870
#endif
871

872 873
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
874
    input_source_t *p_master = &p_input->p->input;
875

Laurent Aimar's avatar
Laurent Aimar committed
876 877
    if( p_input->b_preparsing )
        return;
878

879
    vlc_mutex_lock( &p_input->p->p_item->lock );
880
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
881 882 883 884
    p_input->p->i_title = p_master->i_title;
    p_input->p->title   = p_master->title;
    p_input->p->i_title_offset = p_master->i_title_offset;
    p_input->p->i_seekpoint_offset = p_master->i_seekpoint_offset;
885 886 887 888
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
889
        input_SendEventTitle( p_input, 0 );
890 891 892
    }

    /* Global flag */
893
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
894 895
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
896
    vlc_mutex_unlock( &p_input->p->p_item->lock );
897
}
898

899 900 901
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
902

903 904 905 906 907
    /* Start title/chapter */
    val.i_int = p_input->p->input.i_title_start -
                p_input->p->input.i_title_offset;
    if( val.i_int > 0 && val.i_int < p_input->p->input.i_title )
        input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );
Laurent Aimar's avatar
Laurent Aimar committed
908

909 910 911 912 913
    val.i_int = p_input->p->input.i_seekpoint_start -
                p_input->p->input.i_seekpoint_offset;
    if( val.i_int > 0 /* TODO: check upper boundary */ )
        input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &val );

Laurent Aimar's avatar
Laurent Aimar committed
914
    /* Start/stop/run time */
915
    p_input->p->i_start = llroundf(1000000.f
916
                                     * var_GetFloat( p_input, "start-time" ));
917
    p_input->p->i_stop  = llroundf(1000000.f
918
                                     * var_GetFloat( p_input, "stop-time" ));
919
    p_input->p->i_run   = llroundf(1000000.f
920
                                     * var_GetFloat( p_input, "run-time" ));
921
    if( p_input->p->i_run < 0 )
922
    {
923 924
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
925
    }
926

927
    if( p_input->p->i_start > 0 )
928
    {
929
        vlc_value_t s;
930

931
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
932
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
933

934 935
        s.i_time = p_input->p->i_start;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
936 937 938 939 940 941
    }
    if( p_input->p->i_stop > 0 && p_input->p->i_stop <= p_input->p->i_start )
    {
        msg_Warn( p_input, "invalid stop-time ignored" );
        p_input->p->i_stop = 0;
    }