input.c 99.8 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

320 321 322 323 324 325 326 327
    /* Parse input options */
    vlc_mutex_lock( &p_item->lock );
    assert( (int)p_item->optflagc == p_item->i_options );
    for( i = 0; i < p_item->i_options; i++ )
        var_OptionParse( VLC_OBJECT(p_input), p_item->ppsz_options[i],
                         !!(p_item->optflagv[i] & VLC_INPUT_OPTION_TRUSTED) );
    vlc_mutex_unlock( &p_item->lock );

328
    p_input->b_preparsing = b_quick;
329
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
330

331
    /* Init Common fields */
332
    p_input->b_eof = false;
333
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
334
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
335
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
336
    p_input->p->i_stop  = 0;
337
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
338
    p_input->p->i_title = 0;
339
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
340
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
341
    p_input->p->i_state = INIT_S;
342
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
343
    p_input->p->b_recording = false;
344 345
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
346
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
347
    p_input->p->attachment_demux = NULL;
348
    p_input->p->p_sout   = NULL;
349
    p_input->p->b_out_pace_control = false;
350

Pierre's avatar
Pierre committed
351
    vlc_gc_incref( p_item ); /* Released in Destructor() */
352 353 354
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
355
    p_input->p->input.p_demux  = NULL;
356
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
357 358 359
    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;
360 361 362 363
    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
364

365
    vlc_mutex_lock( &p_item->lock );
366 367

    if( !p_item->p_stats )
368
        p_item->p_stats = stats_NewInputStats( p_input );
369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388

    /* 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;
    }

389
    vlc_mutex_unlock( &p_item->lock );
390

391
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
392 393
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
394

395
    /* */
396
    if( p_resource )
397 398
    {
        p_input->p->p_resource_private = NULL;
399
        p_input->p->p_resource = input_resource_Hold( p_resource );
400
    }
401
    else
402 403
    {
        p_input->p->p_resource_private = input_resource_New( VLC_OBJECT( p_input ) );
404
        p_input->p->p_resource = input_resource_Hold( p_input->p->p_resource_private );
405
    }
406
    input_resource_SetInput( p_input->p->p_resource, p_input );
407

408
    /* Init control buffer */
409
    vlc_mutex_init( &p_input->p->lock_control );
410
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
411
    p_input->p->i_control = 0;
412
    p_input->p->is_running = false;
413

414 415
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
416

417
    /* Create Objects variables for public Get and Set */
418
    input_ControlVarInit( p_input );
419

420
    /* */
421
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
422
    {
423 424
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
425
        {
426 427
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
428
            psz_parser = psz_bookmarks;
429
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
430
            {
431
                 seekpoint_t *p_seekpoint;
432 433 434 435 436 437 438 439
                 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 = ',';
440 441

                 p_seekpoint = vlc_seekpoint_New();
442 443 444 445 446
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
447
                         p_seekpoint->psz_name = strdup(psz_start + 5);
448 449 450 451 452 453 454
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
455
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
Ilkka Ollakka's avatar
Ilkka Ollakka committed
456
                                                        CLOCK_FREQ;
457 458
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
459
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
460
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
461 462 463 464 465
                                  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
466
            }
467
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
468 469 470
        }
    }

471
    /* Remove 'Now playing' info as it is probably outdated */
472
    input_item_SetNowPlaying( p_item, NULL );
473
    input_item_SetESNowPlaying( p_item, NULL );
474
    input_SendEventMeta( p_input );
475

476 477 478 479
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

480 481 482 483
    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;

484
    /* */
485
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
486
    vlc_mutex_init( &p_input->p->counters.counters_lock );
487

488 489 490
    p_input->p->p_es_out_display = input_EsOutNew( p_input, p_input->p->i_rate );
    p_input->p->p_es_out = NULL;

491 492 493
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

494 495 496
    return p_input;
}

497 498 499 500
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
501
{
502
#ifndef NDEBUG
503
    char * psz_name = input_item_GetName( p_input->p->p_item );
504 505 506 507
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

508 509 510
    if( p_input->p->p_es_out_display )
        es_out_Delete( p_input->p->p_es_out_display );

511 512
    if( p_input->p->p_resource )
        input_resource_Release( p_input->p->p_resource );
513
    if( p_input->p->p_resource_private )
514
        input_resource_Release( p_input->p->p_resource_private );
515

516
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
517

518 519
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

520
    for( int i = 0; i < p_input->p->i_control; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
521 522 523 524
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }
525

526
    vlc_cond_destroy( &p_input->p->wait_control );
527 528
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
529
}
530

531
/*****************************************************************************
532
 * Run: main thread loop
533 534
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
535
 *****************************************************************************/
536
static void *Run( void *obj )
Michel Kaempf's avatar
Michel Kaempf committed
537
{
538
    input_thread_t *p_input = (input_thread_t *)obj;
539
    const int canc = vlc_savecancel();
540

541 542
    if( !Init( p_input ) )
    {
543 544 545 546 547 548
        if( var_InheritBool( p_input, "start-paused" ) )
        {
            const mtime_t i_control_date = mdate();
            ControlPause( p_input, i_control_date );
        }

549
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
550

551 552 553
        /* Clean up */
        End( p_input );
    }
554

555
    input_SendEventDead( p_input );
556

557
    vlc_restorecancel( canc );
558
    return NULL;
559 560 561 562 563
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
564 565 566 567 568

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
569
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, mtime_t i_start_mdate )
570
{
571
    int i_ret;
572

573
    *pb_changed = false;
574

Laurent Aimar's avatar
Laurent Aimar committed
575
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
576
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
577 578
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
579
        i_ret = demux_Demux( p_input->p->input.p_demux );
580 581

    if( i_ret > 0 )
582
    {
583
        if( p_input->p->input.p_demux->info.i_update )
584
        {
585 586 587 588 589
            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;
            }
590 591 592 593 594 595
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
596 597
        }
    }
598

599 600
    if( i_ret == 0 )    /* EOF */
    {
601 602
        msg_Dbg( p_input, "EOF reached" );
        p_input->p->input.b_eof = true;
603
        es_out_Eos(p_input->p->p_es_out);
604 605 606 607 608 609 610
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
611
        SlaveDemux( p_input );
612 613
}

614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650
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
    {
651
        val.f_float = 0.f;
652 653 654 655 656 657 658 659
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

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

660
/**
661
 * Update timing infos and statistics.
662
 */
663
static void MainLoopStatistics( input_thread_t *p_input )
664
{
665 666 667
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
668 669

    /* update input status variables */
670
    if( demux_Control( p_input->p->input.p_demux,
671 672
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
673

674
    if( demux_Control( p_input->p->input.p_demux,
675 676
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
677
    p_input->p->i_time = i_time;
678 679

    if( demux_Control( p_input->p->input.p_demux,
680 681
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
682

683
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
684 685 686 687

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
688
    p_input->p->bookmark.i_byte_offset = -1;
689
    vlc_mutex_unlock( &p_input->p->p_item->lock );
690

691
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
692
    input_SendEventStatistics( p_input );
693 694 695 696 697 698
}

/**
 * MainLoop
 * The main input loop.
 */
699
static void MainLoop( input_thread_t *p_input, bool b_interactive )
700 701
{
    mtime_t i_start_mdate = mdate();
702
    mtime_t i_intf_update = 0;
703
    mtime_t i_last_seek_mdate = 0;
704 705
    bool b_pause_after_eof = b_interactive &&
                             var_CreateGetBool( p_input, "play-and-pause" );
706

707
    while( vlc_object_alive( p_input ) && !p_input->b_error )
708
    {
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
709
        mtime_t i_wakeup = -1;
710
        bool b_paused = p_input->p->i_state == PAUSE_S;
Laurent Aimar's avatar
Laurent Aimar committed
711
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
712 713
         * is paused -> this may cause problem with some of them
         * The same problem can be seen when seeking while paused */
714 715
        if( b_paused )
            b_paused = !es_out_GetBuffering( p_input->p->p_es_out ) || p_input->p->input.b_eof;
716 717

        if( !b_paused )
718
        {
719 720
            if( !p_input->p->input.b_eof )
            {
721
                bool b_force_update = false;
722

723
                MainLoopDemux( p_input, &b_force_update, i_start_mdate );
724
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
725 726 727

                if( b_force_update )
                    i_intf_update = 0;
728
            }
729
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
730 731 732 733
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
734 735 736
            /* 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 )
737
            {
738 739
                vlc_value_t val = { .i_int = PAUSE_S };

740 741 742 743 744
                msg_Dbg( p_input, "pausing at EOF (pause after each)");
                Control( p_input, INPUT_CONTROL_SET_STATE, val );

                b_paused = true;
            }
745 746
            else
            {
747 748
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
749
                b_pause_after_eof = var_GetBool( p_input, "play-and-pause" );
750
            }
751 752 753 754 755 756 757 758

            /* Update interface and statistics */
            mtime_t now = mdate();
            if( now >= i_intf_update )
            {
                MainLoopStatistics( p_input );
                i_intf_update = now + INT64_C(250000);
            }
759
        }
760

761 762 763
        /* Handle control */
        for( ;; )
        {
764
            mtime_t i_deadline = i_wakeup;
765 766 767 768 769 770

            /* 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 )
771
            {
772 773 774 775
                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
776
                 && (i_deadline < 0 || i_deadline > now + INT64_C(20000)) )
777 778 779 780
                    i_deadline = now + INT64_C(20000);
                else
                    b_postpone = false;
            }
781

782 783
            int i_type;
            vlc_value_t val;
784

785 786 787 788 789 790
            if( ControlPop( p_input, &i_type, &val, i_deadline, b_postpone ) )
            {
                if( b_postpone )
                    continue;
                break; /* Wake-up time reached */
            }
791

792
#ifndef NDEBUG
793
            msg_Dbg( p_input, "control type=%d", i_type );
794
#endif
795 796 797 798 799
            if( Control( p_input, i_type, val ) )
            {
                if( ControlIsSeekRequest( i_type ) )
                    i_last_seek_mdate = mdate();
                i_intf_update = 0;
800
            }
801

802
            /* Update the wakeup time */
803
            if( i_wakeup != 0 )
804
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
805
        }
806
    }
807

808
    if( !p_input->b_error )
809
        input_ChangeState( p_input, END_S );
810 811
}

812
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
813
{
814
    if( p_input->b_preparsing ) return;
815

816
    /* Prepare statistics */
817 818
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
819
    if( libvlc_stats( p_input ) )
820
    {
821 822 823 824 825 826 827 828 829 830 831 832 833 834
        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 );
835 836 837
        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;
838
    }
839
}
840

841
#ifdef ENABLE_SOUT
842 843
static int InitSout( input_thread_t * p_input )
{
844 845
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
846 847

    /* Find a usable sout and attach it to p_input */
848
    char *psz = var_GetNonEmptyString( p_input, "sout" );
849
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
850
    {
851
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
852
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
853
        {
854 855 856 857 858
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
859
        }
860
        if( libvlc_stats( p_input ) )
861
        {
862 863 864
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
865
        }
866
    }
867
    else
868
    {
869
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
870
    }
871
    free( psz );
872

873 874
    return VLC_SUCCESS;
}
875
#endif
876

877 878
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
879
    input_source_t *p_master = &p_input->p->input;
880

Laurent Aimar's avatar
Laurent Aimar committed
881 882
    if( p_input->b_preparsing )
        return;
883

884
    vlc_mutex_lock( &p_input->p->p_item->lock );
885
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
886 887 888 889
    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;
890 891 892 893
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
894
        input_SendEventTitle( p_input, 0 );
895 896 897
    }

    /* Global flag */
898
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
899 900
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
901
    vlc_mutex_unlock( &p_input->p->p_item->lock );
902
}
903

904 905 906
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
907

908 909 910 911 912
    /* 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
913

914 915 916 917 918
    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
919
    /* Start/stop/run time */
920
    p_input->p->i_start = llroundf(1000000.f
921
                                     * var_GetFloat( p_input, "start-time" ));
922
    p_input->p->i_stop  = llroundf(1000000.f
923
                                     * var_GetFloat( p_input, "stop-time" ));
924
    p_input->p->i_run   = llroundf(1000000.f
925
                                     * var_GetFloat( p_input, "run-time" ));
926
    if( p_input->p->i_run < 0 )
927
    {
928 929
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
930
    }
931

932
    if( p_input->p->i_start > 0 )
933
    {
934
        vlc_value_t s;
935

936
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
937
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
938

939 940
        s.i_time = p_input->p->i_start;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
941 942 943 944 945 946
    }
    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;
    }
947
    p_input->p->b_fast_seek