input.c 92.2 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 <math.h>
37
#include <sys/stat.h>
38

39
#include "input_internal.h"
40
#include "event.h"
41
#include "es_out.h"
42
#include "es_out_timeshift.h"
43
#include "demux.h"
44
#include "item.h"
45
#include "resource.h"
46

Clément Stenac's avatar
Clément Stenac committed
47
#include <vlc_sout.h>
48
#include <vlc_dialog.h>
Clément Stenac's avatar
Clément Stenac committed
49 50
#include <vlc_url.h>
#include <vlc_charset.h>
51
#include <vlc_fs.h>
52
#include <vlc_strings.h>
53
#include <vlc_modules.h>
54

55
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
56
 * Local prototypes
57
 *****************************************************************************/
58 59
static  void *Run( void * );
static  void *Preparse( void * );
60

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
61
static input_thread_t * Create  ( vlc_object_t *, input_item_t *,
62
                                  const char *, bool, input_resource_t * );
63
static  int             Init    ( input_thread_t *p_input );
64
static void             End     ( input_thread_t *p_input );
65
static void             MainLoop( input_thread_t *p_input, bool b_interactive );
66

67
static inline int ControlPop( input_thread_t *, int *, vlc_value_t *, mtime_t i_deadline, bool b_postpone_seek );
68
static void       ControlRelease( int i_type, vlc_value_t val );
69
static bool       ControlIsSeekRequest( int i_type );
70
static bool       Control( input_thread_t *, int, vlc_value_t );
71
static void       ControlPause( input_thread_t *, mtime_t );
72

73 74
static int  UpdateTitleSeekpointFromDemux( input_thread_t * );
static void UpdateGenericFromDemux( input_thread_t * );
75
static void UpdateTitleListfromDemux( input_thread_t * );
Michel Kaempf's avatar
Michel Kaempf committed
76

77
static void MRLSections( const char *, int *, int *, int *, int *);
78

79 80 81 82
static input_source_t *InputSourceNew( input_thread_t *, const char *,
                                       const char *psz_forced_demux,
                                       bool b_in_can_fail );
static void InputSourceDestroy( input_source_t * );
Laurent Aimar's avatar
Laurent Aimar committed
83 84
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

85 86
/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
87
static void SlaveDemux( input_thread_t *p_input );
88
static void SlaveSeek( input_thread_t *p_input );
89

90
static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta );
91
static void InputUpdateMeta( input_thread_t *p_input, demux_t *p_demux );
92 93 94
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char *psz_access, const char *psz_path );
95

96 97
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 );
98

99 100 101
enum {
    SUB_NOFLAG = 0x00,
    SUB_FORCED = 0x01,
102
    SUB_CANFAIL = 0x02,
103
};
104

105 106
static void input_SubtitleAdd( input_thread_t *, const char *, unsigned );
static void input_SubtitleFileAdd( input_thread_t *, char *, unsigned );
107 108
static void input_ChangeState( input_thread_t *p_input, int i_state ); /* TODO fix name */

109
#undef input_Create
110 111 112 113 114 115 116 117 118 119 120 121
/**
 * 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
 */
122 123 124
input_thread_t *input_Create( vlc_object_t *p_parent,
                              input_item_t *p_item,
                              const char *psz_log, input_resource_t *p_resource )
125 126 127 128
{
    return Create( p_parent, p_item, psz_log, false, p_resource );
}

129
#undef input_Read
130
/**
131
 * Initialize an input thread and run it until it stops by itself.
132 133 134 135 136
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \return an error code, VLC_SUCCESS on success
 */
137
int input_Read( vlc_object_t *p_parent, input_item_t *p_item )
138
{
139
    input_thread_t *p_input = Create( p_parent, p_item, NULL, false, NULL );
140 141 142
    if( !p_input )
        return VLC_EGENERIC;

143 144
    if( !Init( p_input ) )
    {
145
        MainLoop( p_input, false );
146 147 148 149
        End( p_input );
    }

    vlc_object_release( p_input );
150 151 152
    return VLC_SUCCESS;
}

153 154 155 156 157 158
input_thread_t *input_CreatePreparser( vlc_object_t *parent,
                                       input_item_t *item )
{
    return Create( parent, item, NULL, true, NULL );
}

159 160 161 162 163 164 165 166 167
/**
 * 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 )
{
168 169 170 171 172
    void *(*func)(void *) = Run;

    if( p_input->b_preparsing )
        func = Preparse;

173
    assert( !p_input->p->is_running );
174
    /* Create thread and wait for its readiness. */
175 176
    p_input->p->is_running = !vlc_clone( &p_input->p->thread, func, p_input,
                                         VLC_THREAD_PRIORITY_INPUT );
177
    if( !p_input->p->is_running )
178 179 180 181 182 183 184 185 186 187 188 189 190
    {
        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
 */
191
void input_Stop( input_thread_t *p_input )
192
{
193 194 195 196 197 198 199 200 201 202 203 204 205
    input_thread_private_t *sys = p_input->p;

    vlc_mutex_lock( &sys->lock_control );
    /* Discard all pending controls */
    for( int i = 0; i < sys->i_control; i++ )
    {
        input_control_t *ctrl = &sys->control[i];
        ControlRelease( ctrl->i_type, ctrl->val );
    }
    sys->i_control = 0;
    sys->is_stopped = true;
    vlc_cond_signal( &sys->wait_control );
    vlc_mutex_unlock( &sys->lock_control );
206
    vlc_interrupt_kill( &sys->interrupt );
207 208
}

Laurent Aimar's avatar
Laurent Aimar committed
209 210 211 212 213
/**
 * Close an input
 *
 * It does not call input_Stop itself.
 */
214
void input_Close( input_thread_t *p_input )
Laurent Aimar's avatar
Laurent Aimar committed
215
{
216 217
    if( p_input->p->is_running )
        vlc_join( p_input->p->thread, NULL );
218
    vlc_interrupt_deinit( &p_input->p->interrupt );
219
    vlc_object_release( p_input );
Laurent Aimar's avatar
Laurent Aimar committed
220 221
}

222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void input_Destructor( vlc_object_t *obj )
{
    input_thread_t *p_input = (input_thread_t *)obj;
#ifndef NDEBUG
    char * psz_name = input_item_GetName( p_input->p->p_item );
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

    if( p_input->p->p_es_out_display )
        es_out_Delete( p_input->p->p_es_out_display );

    if( p_input->p->p_resource )
        input_resource_Release( p_input->p->p_resource );
    if( p_input->p->p_resource_private )
        input_resource_Release( p_input->p->p_resource_private );

    vlc_gc_decref( p_input->p->p_item );

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

    for( int i = 0; i < p_input->p->i_control; i++ )
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }

    vlc_cond_destroy( &p_input->p->wait_control );
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
}

257 258 259 260 261 262 263 264 265 266 267 268
/**
 * 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;
}

269
/*****************************************************************************
270 271
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
272
 *
Laurent Aimar's avatar
Laurent Aimar committed
273
 * XXX Do not forget to update vlc_input.h if you add new variables.
274
 *****************************************************************************/
275
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
276
                               const char *psz_header, bool b_quick,
277
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
278
{
279
    input_thread_t *p_input = NULL;                 /* thread descriptor */
280

281
    /* Allocate descriptor */
282
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ), "input" );
283
    if( p_input == NULL )
284
        return NULL;
285 286 287 288 289 290

    /* 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 );
291 292 293

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

294 295
    free( psz_name );

296 297
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
298 299
    {
        vlc_object_release( p_input );
300
        return NULL;
301
    }
302

303
    /* Parse input options */
304
    input_item_ApplyOptions( VLC_OBJECT(p_input), p_item );
305

306
    p_input->b_preparsing = b_quick;
307
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
308

309
    /* Init Common fields */
310
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
311
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
312
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
313
    p_input->p->i_stop  = 0;
314
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
315
    p_input->p->i_title = 0;
316
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
317
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
318
    p_input->p->i_state = INIT_S;
319 320
    p_input->p->is_running = false;
    p_input->p->is_stopped = false;
321
    p_input->p->b_recording = false;
322
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
323 324
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
325
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
326
    p_input->p->attachment_demux = NULL;
327
    p_input->p->p_sout   = NULL;
328
    p_input->p->b_out_pace_control = false;
329

Pierre's avatar
Pierre committed
330
    vlc_gc_incref( p_item ); /* Released in Destructor() */
331 332 333
    p_input->p->p_item = p_item;

    /* Init Input fields */
334
    p_input->p->master = NULL;
335
    vlc_mutex_lock( &p_item->lock );
336 337

    if( !p_item->p_stats )
338
        p_item->p_stats = stats_NewInputStats( p_input );
339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358

    /* 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;
    }

359
    vlc_mutex_unlock( &p_item->lock );
360

361
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
362 363
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
364

365
    /* */
366
    if( p_resource )
367 368
    {
        p_input->p->p_resource_private = NULL;
369
        p_input->p->p_resource = input_resource_Hold( p_resource );
370
    }
371
    else
372 373
    {
        p_input->p->p_resource_private = input_resource_New( VLC_OBJECT( p_input ) );
374
        p_input->p->p_resource = input_resource_Hold( p_input->p->p_resource_private );
375
    }
376
    input_resource_SetInput( p_input->p->p_resource, p_input );
377

378
    /* Init control buffer */
379
    vlc_mutex_init( &p_input->p->lock_control );
380
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
381
    p_input->p->i_control = 0;
382
    vlc_interrupt_init(&p_input->p->interrupt);
383

384 385
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
386

387
    /* Create Objects variables for public Get and Set */
388
    input_ControlVarInit( p_input );
389

390
    /* */
391
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
392
    {
393 394
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
395
        {
396 397
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
398
            psz_parser = psz_bookmarks;
399
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
400
            {
401
                 seekpoint_t *p_seekpoint;
402 403 404 405 406 407 408 409
                 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 = ',';
410 411

                 p_seekpoint = vlc_seekpoint_New();
412 413 414 415 416
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
417
                         p_seekpoint->psz_name = strdup(psz_start + 5);
418 419 420
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
421
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
Ilkka Ollakka's avatar
Ilkka Ollakka committed
422
                                                        CLOCK_FREQ;
423 424
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
425
                }
426 427
                msg_Dbg( p_input, "adding bookmark: %s, time=%"PRId64,
                                  p_seekpoint->psz_name,
428 429 430 431
                                  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
432
            }
433
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
434 435 436
        }
    }

437
    /* Remove 'Now playing' info as it is probably outdated */
438
    input_item_SetNowPlaying( p_item, NULL );
439
    input_item_SetESNowPlaying( p_item, NULL );
440
    input_SendEventMeta( p_input );
441

442 443 444 445
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

446 447 448 449
    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;

450
    /* */
451
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
452
    vlc_mutex_init( &p_input->p->counters.counters_lock );
453

454 455 456
    p_input->p->p_es_out_display = input_EsOutNew( p_input, p_input->p->i_rate );
    p_input->p->p_es_out = NULL;

457
    /* Set the destructor when we are sure we are initialized */
458
    vlc_object_set_destructor( p_input, input_Destructor );
459

460 461 462
    return p_input;
}

463
/*****************************************************************************
464
 * Run: main thread loop
465 466
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
467
 *****************************************************************************/
468
static void *Run( void *obj )
Michel Kaempf's avatar
Michel Kaempf committed
469
{
470
    input_thread_t *p_input = (input_thread_t *)obj;
471

472 473
    vlc_interrupt_set(&p_input->p->interrupt);

474 475 476
    if( !Init( p_input ) )
    {
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
477

478 479 480
        /* Clean up */
        End( p_input );
    }
481

482
    input_SendEventDead( p_input );
483
    return NULL;
484 485
}

486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510
static void *Preparse( void *obj )
{
    input_thread_t *p_input = (input_thread_t *)obj;

    vlc_interrupt_set(&p_input->p->interrupt);

    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;

        if ( input_item_ShouldPreparseSubItems( p_input->p->p_item )
          && demux_Control( p_input->p->master->p_demux,
                            DEMUX_IS_PLAYLIST,
                            &b_is_playlist ) )
            b_is_playlist = false;
        if( b_is_playlist )
            MainLoop( p_input, false );
        End( p_input );
    }

    input_SendEventDead( p_input );
    return NULL;
}

511 512 513 514 515 516 517 518 519 520 521
bool input_Stopped( input_thread_t *input )
{
    input_thread_private_t *sys = input->p;
    bool ret;

    vlc_mutex_lock( &sys->lock_control );
    ret = sys->is_stopped;
    vlc_mutex_unlock( &sys->lock_control );
    return ret;
}

522 523 524
/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
525 526 527 528 529

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
530
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, mtime_t i_start_mdate )
531
{
532
    int i_ret;
533

534
    *pb_changed = false;
535

Laurent Aimar's avatar
Laurent Aimar committed
536
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
537
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
538 539
        i_ret = 0; /* EOF */
    else
540
        i_ret = demux_Demux( p_input->p->master->p_demux );
541 542

    if( i_ret > 0 )
543
    {
544
        if( p_input->p->master->p_demux->info.i_update )
545
        {
546
            if( p_input->p->master->p_demux->info.i_update & INPUT_UPDATE_TITLE_LIST )
547 548
            {
                UpdateTitleListfromDemux( p_input );
549
                p_input->p->master->p_demux->info.i_update &= ~INPUT_UPDATE_TITLE_LIST;
550
            }
551
            if( p_input->p->master->b_title_demux )
552 553 554 555 556
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
557 558
        }
    }
559

560 561
    if( i_ret == 0 )    /* EOF */
    {
562
        msg_Dbg( p_input, "EOF reached" );
563
        p_input->p->master->b_eof = true;
564
        es_out_Eos(p_input->p->p_es_out);
565 566 567 568 569 570 571
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
572
        SlaveDemux( p_input );
573 574
}

575 576 577
static int MainLoopTryRepeat( input_thread_t *p_input, mtime_t *pi_start_mdate )
{
    int i_repeat = var_GetInteger( p_input, "input-repeat" );
578
    if( i_repeat <= 0 )
579 580 581 582 583 584 585 586 587 588 589 590
        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 */
591 592 593
    val.i_int = p_input->p->master->i_title_start -
        p_input->p->master->i_title_offset;
    if( val.i_int < 0 || val.i_int >= p_input->p->master->i_title )
594 595 596 597
        val.i_int = 0;
    input_ControlPush( p_input,
                       INPUT_CONTROL_SET_TITLE, &val );

598 599
    val.i_int = p_input->p->master->i_seekpoint_start -
        p_input->p->master->i_seekpoint_offset;
600 601 602 603 604 605 606
    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 )
    {
607
        val.i_int = p_input->p->i_start;
608 609 610 611
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &val );
    }
    else
    {
612
        val.f_float = 0.f;
613 614 615 616 617 618 619 620
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

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

621
/**
622
 * Update timing infos and statistics.
623
 */
624
static void MainLoopStatistics( input_thread_t *p_input )
625
{
626 627 628
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
629 630

    /* update input status variables */
631
    if( demux_Control( p_input->p->master->p_demux,
632 633
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
634

635
    if( demux_Control( p_input->p->master->p_demux,
636 637
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
638
    p_input->p->i_time = i_time;
639

640
    if( demux_Control( p_input->p->master->p_demux,
641 642
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
643

644
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
645 646 647 648 649

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
    vlc_mutex_unlock( &p_input->p->p_item->lock );
650

651
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
652
    input_SendEventStatistics( p_input );
653 654 655 656 657 658
}

/**
 * MainLoop
 * The main input loop.
 */
659
static void MainLoop( input_thread_t *p_input, bool b_interactive )
660 661
{
    mtime_t i_start_mdate = mdate();
662
    mtime_t i_intf_update = 0;
663
    mtime_t i_last_seek_mdate = 0;
664 665 666 667

    if( b_interactive && var_InheritBool( p_input, "start-paused" ) )
        ControlPause( p_input, i_start_mdate );

668
    bool b_pause_after_eof = b_interactive &&
669
                             var_InheritBool( p_input, "play-and-pause" );
670

671
    while( !input_Stopped( p_input ) && p_input->p->i_state != ERROR_S )
672
    {
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
673
        mtime_t i_wakeup = -1;
674
        bool b_paused = p_input->p->i_state == PAUSE_S;
Laurent Aimar's avatar
Laurent Aimar committed
675
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
676 677
         * is paused -> this may cause problem with some of them
         * The same problem can be seen when seeking while paused */
678
        if( b_paused )
679 680
            b_paused = !es_out_GetBuffering( p_input->p->p_es_out )
                    || p_input->p->master->b_eof;
681 682

        if( !b_paused )
683
        {
684
            if( !p_input->p->master->b_eof )
685
            {
686
                bool b_force_update = false;
687

688
                MainLoopDemux( p_input, &b_force_update, i_start_mdate );
689

690 691
                if( p_input->p->master->p_demux->pf_demux != NULL )
                    i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
692 693
                if( b_force_update )
                    i_intf_update = 0;
694
            }
695
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
696 697 698 699
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
700 701 702
            /* 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 )
703
            {
704 705
                vlc_value_t val = { .i_int = PAUSE_S };

706 707 708 709 710
                msg_Dbg( p_input, "pausing at EOF (pause after each)");
                Control( p_input, INPUT_CONTROL_SET_STATE, val );

                b_paused = true;
            }
711 712
            else
            {
713 714
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
715
            }
716 717 718 719 720 721 722 723

            /* Update interface and statistics */
            mtime_t now = mdate();
            if( now >= i_intf_update )
            {
                MainLoopStatistics( p_input );
                i_intf_update = now + INT64_C(250000);
            }
724
        }
725

726 727 728
        /* Handle control */
        for( ;; )
        {
729
            mtime_t i_deadline = i_wakeup;
730 731 732 733

            /* Postpone seeking until ES buffering is complete or at most
             * 125 ms. */
            bool b_postpone = es_out_GetBuffering( p_input->p->p_es_out )
734
                            && !p_input->p->master->b_eof;
735
            if( b_postpone )
736
            {
737 738 739 740
                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
741
                 && (i_deadline < 0 || i_deadline > now + INT64_C(20000)) )
742 743 744 745
                    i_deadline = now + INT64_C(20000);
                else
                    b_postpone = false;
            }
746

747 748
            int i_type;
            vlc_value_t val;
749

750 751 752 753 754 755
            if( ControlPop( p_input, &i_type, &val, i_deadline, b_postpone ) )
            {
                if( b_postpone )
                    continue;
                break; /* Wake-up time reached */
            }
756

757
#ifndef NDEBUG
758
            msg_Dbg( p_input, "control type=%d", i_type );
759
#endif
760 761 762 763 764
            if( Control( p_input, i_type, val ) )
            {
                if( ControlIsSeekRequest( i_type ) )
                    i_last_seek_mdate = mdate();
                i_intf_update = 0;
765
            }
766

767
            /* Update the wakeup time */
768
            if( i_wakeup != 0 )
769
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
770
        }
771
    }
772 773
}

774
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
775
{
776
    if( p_input->b_preparsing ) return;
777

778
    /* Prepare statistics */
779 780
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
781
    if( libvlc_stats( p_input ) )
782
    {
783 784 785 786 787 788 789 790 791 792 793 794 795 796
        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 );
797 798 799
        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;
800
    }
801
}
802

803
#ifdef ENABLE_SOUT
804 805
static int InitSout( input_thread_t * p_input )
{
806 807
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
808 809

    /* Find a usable sout and attach it to p_input */
810
    char *psz = var_GetNonEmptyString( p_input, "sout" );
811
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
812
    {
813
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
814
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
815
        {
816 817 818 819 820
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
821
        }
822
        if( libvlc_stats( p_input ) )
823
        {
824 825 826
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
827
        }
828
    }
829
    else
830
    {
831
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
832
    }
833
    free( psz );
834

835 836
    return VLC_SUCCESS;
}
837
#endif
838

839 840
static void InitTitle( input_thread_t * p_input )
{
841
    input_source_t *p_master = p_input->p->master;
842

Laurent Aimar's avatar
Laurent Aimar committed
843 844
    if( p_input->b_preparsing )
        return;
845

846
    vlc_mutex_lock( &p_input->p->p_item->lock );
847
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
848 849 850 851
    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;
852 853 854 855
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
856
        input_SendEventTitle( p_input, 0 );
857 858 859
    }

    /* Global flag */
860
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
861 862
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
863
    vlc_mutex_unlock( &p_input->p->p_item->lock );
864
}
865

866 867 868
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
869

870
    /* Start title/chapter */
871 872 873
    val.i_int = p_input->p->master->i_title_start -
                p_input->p->master->i_title_offset;
    if( val.i_int > 0 && val.i_int < p_input->p->master->i_title )
874
        input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );
Laurent Aimar's avatar
Laurent Aimar committed
875

876 877
    val.i_int = p_input->p->master->i_seekpoint_start -
                p_input->p->master->i_seekpoint_offset;
878 879 880
    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
881
    /* Start/stop/run time */
882
    p_input->p->i_start = llroundf(1000000.f
883
                                     * var_GetFloat( p_input, "start-time" ));
884
    p_input->p->i_stop  = llroundf(1000000.f
885
                                     * var_GetFloat( p_input, "stop-time" ));
886
    p_input->p->i_run   = llroundf(1000000.f
887
                                     * var_GetFloat( p_input, "run-time" ));
888
    if( p_input->p->i_run < 0 )
889
    {
890 891
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
892
    }
893

894
    if( p_input->p->i_start > 0 )
895
    {
896
        vlc_value_t s;
897

898
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
899
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
900

901
        s.i_int = p_input->p->i_start;
902
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
903 904 905 906 907 908
    }
    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;
    }
909
    p_input->p->b_fast_seek = var_GetBool( p_input, "input-fast-seek" );
Laurent Aimar's avatar
Laurent Aimar committed
910
}
911

Laurent Aimar's avatar
Laurent Aimar committed
912 913
static void LoadSubtitles( input_thread_t *p_input )
{
914 915
    /* Load subtitles */
    /* Get fps and set it if not already set */
916
    const float f_fps = p_input->p->master->f_fps;
917
    if( f_fps > 1.f )
918 919 920
    {
        var_Create( p_input, "sub-original-fps", VLC_VAR_FLOAT );
        var_SetFloat( p_input, "sub-original-fps", f_fps );
921

922
        float f_requested_fps = var_CreateGetFloat( p_input, "sub-fps" );
923
        if( f_requested_fps != f_fps )
924
        {
925 926 927
            var_Create( p_input, "sub-fps", VLC_VAR_FLOAT|
                                            VLC_VAR_DOINHERIT );
            var_SetFloat( p_input, "sub-fps", f_requested_fps );
928
        }
929
    }