input.c 100 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

76 77
static int  UpdateTitleSeekpointFromDemux( input_thread_t * );
static void UpdateGenericFromDemux( input_thread_t * );
78
static void UpdateTitleListfromDemux( input_thread_t * );
Michel Kaempf's avatar
Michel Kaempf committed
79

80
static void MRLSections( const char *, int *, int *, int *, int *);
81 82

static input_source_t *InputSourceNew( input_thread_t *);
83
static int  InputSourceInit( input_thread_t *, input_source_t *,
84 85
                             const char *, const char *psz_forced_demux,
                             bool b_in_can_fail );
86
static void InputSourceClean( input_source_t * );
Laurent Aimar's avatar
Laurent Aimar committed
87 88
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

89 90
/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
91
static void SlaveDemux( input_thread_t *p_input, bool *pb_demux_polled );
92
static void SlaveSeek( input_thread_t *p_input );
93

94
static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta );
95
static void InputUpdateMeta( input_thread_t *p_input, demux_t *p_demux );
96 97 98
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char *psz_access, const char *psz_path );
99

100 101
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 );
102

103 104 105
enum {
    SUB_NOFLAG = 0x00,
    SUB_FORCED = 0x01,
106
    SUB_CANFAIL = 0x02,
107
};
108

109 110
static void input_SubtitleAdd( input_thread_t *, const char *, unsigned );
static void input_SubtitleFileAdd( input_thread_t *, char *, unsigned );
111 112
static void input_ChangeState( input_thread_t *p_input, int i_state ); /* TODO fix name */

113
#undef input_Create
114 115 116 117 118 119 120 121 122 123 124 125
/**
 * 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
 */
126 127 128
input_thread_t *input_Create( vlc_object_t *p_parent,
                              input_item_t *p_item,
                              const char *psz_log, input_resource_t *p_resource )
129 130 131 132
{
    return Create( p_parent, p_item, psz_log, false, p_resource );
}

133
#undef input_CreateAndStart
134 135 136 137 138 139 140
/**
 * Create a new input_thread_t and start it.
 *
 * Provided for convenience.
 *
 * \see input_Create
 */
141 142
input_thread_t *input_CreateAndStart( vlc_object_t *p_parent,
                                      input_item_t *p_item, const char *psz_log )
143
{
144
    input_thread_t *p_input = input_Create( p_parent, p_item, psz_log, NULL );
145 146 147 148 149 150 151 152 153

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

154
#undef input_Read
155
/**
156
 * Initialize an input thread and run it until it stops by itself.
157 158 159 160 161
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \return an error code, VLC_SUCCESS on success
 */
162
int input_Read( vlc_object_t *p_parent, input_item_t *p_item )
163
{
164
    input_thread_t *p_input = Create( p_parent, p_item, NULL, false, NULL );
165 166 167
    if( !p_input )
        return VLC_EGENERIC;

168 169
    if( !Init( p_input ) )
    {
170
        MainLoop( p_input, false );
171 172 173 174
        End( p_input );
    }

    vlc_object_release( p_input );
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194
    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;

195 196 197 198 199 200 201 202 203 204 205
    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 ( demux_Control( p_input->p->input.p_demux,
                            DEMUX_IS_PLAYLIST,
                            &b_is_playlist ) )
            b_is_playlist = false;
        if( b_is_playlist )
            MainLoop( p_input, false );
206
        End( p_input );
207
    }
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223

    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. */
224 225 226
    p_input->p->is_running = !vlc_clone( &p_input->p->thread,
                                         Run, p_input, VLC_THREAD_PRIORITY_INPUT );
    if( !p_input->p->is_running )
227 228 229 230 231 232 233 234 235 236 237 238 239
    {
        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
 */
240
void input_Stop( input_thread_t *p_input )
241 242 243 244
{
    /* 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 */
245
    ObjectKillChildrens( VLC_OBJECT(p_input) );
246 247 248
    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
}

249 250 251 252 253 254 255 256 257 258 259
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
260 261 262 263 264
/**
 * Close an input
 *
 * It does not call input_Stop itself.
 */
265
void input_Close( input_thread_t *p_input )
Laurent Aimar's avatar
Laurent Aimar committed
266
{
267 268
    input_Join( p_input );
    input_Release( p_input );
Laurent Aimar's avatar
Laurent Aimar committed
269 270
}

271 272 273 274 275 276 277 278 279 280 281 282
/**
 * 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;
}

283
/*****************************************************************************
284 285
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
286
 *
Laurent Aimar's avatar
Laurent Aimar committed
287
 * XXX Do not forget to update vlc_input.h if you add new variables.
288
 *****************************************************************************/
289
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
290
                               const char *psz_header, bool b_quick,
291
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
292
{
293
    input_thread_t *p_input = NULL;                 /* thread descriptor */
294
    int i;
295

296
    /* Allocate descriptor */
297
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ), "input" );
298
    if( p_input == NULL )
299
        return NULL;
300 301 302 303 304 305

    /* 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 );
306 307 308

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

309 310
    free( psz_name );

311 312
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
313 314
    {
        vlc_object_release( p_input );
315
        return NULL;
316
    }
317

318 319 320 321 322 323 324 325
    /* 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 );

326
    p_input->b_preparsing = b_quick;
327
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
328

329
    /* Init Common fields */
330
    p_input->b_eof = false;
331
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
332
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
333
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
334
    p_input->p->i_stop  = 0;
335
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
336
    p_input->p->i_title = 0;
337
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
338
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
339
    p_input->p->i_state = INIT_S;
340
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
341
    p_input->p->b_recording = false;
342 343
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
344
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
345
    p_input->p->attachment_demux = NULL;
346
    p_input->p->p_sout   = NULL;
347
    p_input->p->b_out_pace_control = false;
348

Pierre's avatar
Pierre committed
349
    vlc_gc_incref( p_item ); /* Released in Destructor() */
350 351 352
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
353
    p_input->p->input.p_demux  = NULL;
354
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
355 356 357
    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;
358 359 360 361
    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
362

363
    vlc_mutex_lock( &p_item->lock );
364 365

    if( !p_item->p_stats )
366 367
        p_item->p_stats = stats_NewInputStats( p_input );
    vlc_mutex_unlock( &p_item->lock );
368

369
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
370 371
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
372

373
    /* */
374
    if( p_resource )
375 376
    {
        p_input->p->p_resource_private = NULL;
377
        p_input->p->p_resource = input_resource_Hold( p_resource );
378
    }
379
    else
380 381
    {
        p_input->p->p_resource_private = input_resource_New( VLC_OBJECT( p_input ) );
382
        p_input->p->p_resource = input_resource_Hold( p_input->p->p_resource_private );
383
    }
384
    input_resource_SetInput( p_input->p->p_resource, p_input );
385

386
    /* Init control buffer */
387
    vlc_mutex_init( &p_input->p->lock_control );
388
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
389
    p_input->p->i_control = 0;
390
    p_input->p->is_running = false;
391

392 393
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
394

395
    /* Create Objects variables for public Get and Set */
396
    input_ControlVarInit( p_input );
397

398
    /* */
399
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
400
    {
401 402
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
403
        {
404 405
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
406
            psz_parser = psz_bookmarks;
407
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
408
            {
409
                 seekpoint_t *p_seekpoint;
410 411 412 413 414 415 416 417
                 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 = ',';
418 419

                 p_seekpoint = vlc_seekpoint_New();
420 421 422 423 424
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
425
                         p_seekpoint->psz_name = strdup(psz_start + 5);
426 427 428 429 430 431 432
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
433
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
Ilkka Ollakka's avatar
Ilkka Ollakka committed
434
                                                        CLOCK_FREQ;
435 436
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
437
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
438
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
439 440 441 442 443
                                  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
444
            }
445
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
446 447 448
        }
    }

449
    /* Remove 'Now playing' info as it is probably outdated */
450
    input_item_SetNowPlaying( p_item, NULL );
451
    input_item_SetESNowPlaying( p_item, NULL );
452
    input_SendEventMeta( p_input );
453

454 455 456 457
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

458 459 460 461
    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;

462
    /* */
463
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
464
    vlc_mutex_init( &p_input->p->counters.counters_lock );
465

466 467 468
    p_input->p->p_es_out_display = input_EsOutNew( p_input, p_input->p->i_rate );
    p_input->p->p_es_out = NULL;

469 470 471
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

472 473 474
    return p_input;
}

475 476 477 478
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
479
{
480
#ifndef NDEBUG
481
    char * psz_name = input_item_GetName( p_input->p->p_item );
482 483 484 485
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

486 487 488
    if( p_input->p->p_es_out_display )
        es_out_Delete( p_input->p->p_es_out_display );

489 490
    if( p_input->p->p_resource )
        input_resource_Release( p_input->p->p_resource );
491
    if( p_input->p->p_resource_private )
492
        input_resource_Release( p_input->p->p_resource_private );
493

494
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
495

496 497
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

498
    for( int i = 0; i < p_input->p->i_control; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
499 500 501 502
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }
503

504
    vlc_cond_destroy( &p_input->p->wait_control );
505 506
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
507
}
508

509
/*****************************************************************************
510
 * Run: main thread loop
511 512
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
513
 *****************************************************************************/
514
static void *Run( void *obj )
Michel Kaempf's avatar
Michel Kaempf committed
515
{
516
    input_thread_t *p_input = (input_thread_t *)obj;
517
    const int canc = vlc_savecancel();
518

519 520 521
    if( !Init( p_input ) )
    {
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
522

523 524 525
        /* Clean up */
        End( p_input );
    }
526

527
    input_SendEventDead( p_input );
528

529
    vlc_restorecancel( canc );
530
    return NULL;
531 532 533 534 535
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
536 537 538 539 540

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
541
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, bool *pb_demux_polled, mtime_t i_start_mdate )
542
{
543
    int i_ret;
544

545
    *pb_changed = false;
546
    *pb_demux_polled = p_input->p->input.p_demux->pf_demux != NULL;
547

Laurent Aimar's avatar
Laurent Aimar committed
548
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
549
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
550 551
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
552
        i_ret = demux_Demux( p_input->p->input.p_demux );
553 554

    if( i_ret > 0 )
555
    {
556
        if( p_input->p->input.p_demux->info.i_update )
557
        {
558 559 560 561 562
            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;
            }
563 564 565 566 567 568
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
569 570
        }
    }
571

572 573
    if( i_ret == 0 )    /* EOF */
    {
574 575
        msg_Dbg( p_input, "EOF reached" );
        p_input->p->input.b_eof = true;
576
        es_out_Eos(p_input->p->p_es_out);
577 578 579 580 581 582 583 584
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
    {
585 586 587 588
        bool b_demux_polled;
        SlaveDemux( p_input, &b_demux_polled );

        *pb_demux_polled |= b_demux_polled;
589 590 591
    }
}

592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
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
    {
629
        val.f_float = 0.f;
630 631 632 633 634 635 636 637
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

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

638 639 640 641 642 643
/**
 * MainLoopInterface
 * It update the variables used by the interfaces
 */
static void MainLoopInterface( input_thread_t *p_input )
{
644 645 646
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
647 648

    /* update input status variables */
649
    if( demux_Control( p_input->p->input.p_demux,
650 651
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
652

653
    if( demux_Control( p_input->p->input.p_demux,
654 655
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
656
    p_input->p->i_time = i_time;
657 658

    if( demux_Control( p_input->p->input.p_demux,
659 660
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
661

662
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
663 664 665 666

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
667
    p_input->p->bookmark.i_byte_offset = -1;
668
    vlc_mutex_unlock( &p_input->p->p_item->lock );
669 670 671 672 673 674 675 676
}

/**
 * MainLoopStatistic
 * It updates the globals statics
 */
static void MainLoopStatistic( input_thread_t *p_input )
{
677
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
678
    input_SendEventStatistics( p_input );
679 680 681 682 683 684
}

/**
 * MainLoop
 * The main input loop.
 */
685
static void MainLoop( input_thread_t *p_input, bool b_interactive )
686 687
{
    mtime_t i_start_mdate = mdate();
688 689
    mtime_t i_intf_update = 0;
    mtime_t i_statistic_update = 0;
690
    mtime_t i_last_seek_mdate = 0;
691 692
    bool b_pause_after_eof = b_interactive &&
                             var_CreateGetBool( p_input, "play-and-pause" );
693

694
    while( vlc_object_alive( p_input ) && !p_input->b_error )
695 696 697
    {
        bool b_force_update;
        vlc_value_t val;
698
        mtime_t i_wakeup, i_current;
699
        bool b_paused;
700
        bool b_demux_polled;
701

702 703
        /* Demux data */
        b_force_update = false;
704
        i_wakeup = 0;
Laurent Aimar's avatar
Laurent Aimar committed
705
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
706 707
         * is paused -> this may cause problem with some of them
         * The same problem can be seen when seeking while paused */
Laurent Aimar's avatar
Laurent Aimar committed
708
        b_paused = p_input->p->i_state == PAUSE_S &&
709
                   ( !es_out_GetBuffering( p_input->p->p_es_out ) || p_input->p->input.b_eof );
710

711
        b_demux_polled = true;
712
        if( !b_paused )
713
        {
714 715
            if( !p_input->p->input.b_eof )
            {
716
                MainLoopDemux( p_input, &b_force_update, &b_demux_polled, i_start_mdate );
717

718 719
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
            }
720
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
721 722 723 724
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
725 726 727
            /* 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 )
728 729 730 731 732 733 734
            {
                msg_Dbg( p_input, "pausing at EOF (pause after each)");
                val.i_int = PAUSE_S;
                Control( p_input, INPUT_CONTROL_SET_STATE, val );

                b_paused = true;
            }
735 736
            else
            {
737 738
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
739
                b_pause_after_eof = var_GetBool( p_input, "play-and-pause" );
740
            }
741
        }
742 743

        /* */
744
        do {
745
            mtime_t i_deadline = i_wakeup;
746
            if( b_paused || !b_demux_polled )
747 748 749
                i_deadline = __MIN( i_intf_update, i_statistic_update );

            /* Handle control */
750
            for( ;; )
751
            {
752 753 754 755 756 757 758 759 760 761
                mtime_t i_limit = i_deadline;

                /* We will postpone the execution of a seek until we have
                 * finished the ES bufferisation (postpone is limited to
                 * 125ms) */
                bool b_buffering = es_out_GetBuffering( p_input->p->p_es_out ) &&
                                   !p_input->p->input.b_eof;
                if( b_buffering )
                {
                    /* When postpone is in order, check the ES level every 20ms */
762 763 764
                    mtime_t now = mdate();
                    if( i_last_seek_mdate + INT64_C(125000) >= now )
                        i_limit = __MIN( i_deadline, now + INT64_C(20000) );
765 766 767 768 769 770 771 772 773
                }

                int i_type;
                if( ControlPop( p_input, &i_type, &val, i_limit, b_buffering ) )
                {
                    if( b_buffering && i_limit < i_deadline )
                        continue;
                    break;
                }
774

775
#ifndef NDEBUG
776
                msg_Dbg( p_input, "control type=%d", i_type );
777
#endif
778

779
                if( Control( p_input, i_type, val ) )
780 781 782
                {
                    if( ControlIsSeekRequest( i_type ) )
                        i_last_seek_mdate = mdate();
783
                    b_force_update = true;
784
                }
785
            }
786

787 788 789 790 791 792 793 794 795 796 797
            /* Update interface and statistics */
            i_current = mdate();
            if( i_intf_update < i_current || b_force_update )
            {
                MainLoopInterface( p_input );
                i_intf_update = i_current + INT64_C(250000);
                b_force_update = false;
            }
            if( i_statistic_update < i_current )
            {
                MainLoopStatistic( p_input );
Ilkka Ollakka's avatar
Ilkka Ollakka committed
798
                i_statistic_update = i_current + CLOCK_FREQ;
799
            }
800

801
            /* Update the wakeup time */
802
            if( i_wakeup != 0 )
803
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
804
        } while( i_current < i_wakeup );
805
    }
806

807
    if( !p_input->b_error )
808
        input_ChangeState( p_input, END_S );
809 810
}

811
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
812
{
813
    if( p_input->b_preparsing ) return;
814

815
    /* Prepare statistics */
816 817
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
818
    if( libvlc_stats( p_input ) )
819
    {
820 821 822 823 824 825 826 827 828 829 830 831 832 833
        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 );
834 835 836
        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;
837
    }
838
}
839

840
#ifdef ENABLE_SOUT
841 842
static int InitSout( input_thread_t * p_input )
{
843 844
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
845 846

    /* Find a usable sout and attach it to p_input */
847
    char *psz = var_GetNonEmptyString( p_input, "sout" );
848
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
849
    {
850
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
851
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
852
        {
853 854 855 856 857
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
858
        }
859
        if( libvlc_stats( p_input ) )
860
        {
861 862 863
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
864
        }
865
    }
866
    else
867
    {
868
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
869
    }
870
    free( psz );
871

872 873
    return VLC_SUCCESS;
}
874
#endif
875

876 877
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
878
    input_source_t *p_master = &p_input->p->input;
879

Laurent Aimar's avatar
Laurent Aimar committed
880 881
    if( p_input->b_preparsing )
        return;
882

883
    vlc_mutex_lock( &p_input->p->p_item->lock );
884
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
885 886 887 888
    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;
889 890 891 892
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
893
        input_SendEventTitle( p_input, 0 );
894 895 896
    }

    /* Global flag */
897
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
898 899
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
900
    vlc_mutex_unlock( &p_input->p->p_item->lock );
901
}
902

903 904 905
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
906

907 908 909 910 911
    /* 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
912

913 914 915 916 917
    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
918
    /* Start/stop/run time */
919
    p_input->p->i_start = llroundf(1000000.f
920
                                     * var_GetFloat( p_input, "start-time" ));
921
    p_input->p->i_stop  = llroundf(1000000.f
922
                                     * var_GetFloat( p_input, "stop-time" ));
923
    p_input->p->i_run   = llroundf(1000000.f
924
                                     * var_GetFloat( p_input, "run-time" ));
925
    if( p_input->p->i_run < 0 )
926
    {
927 928
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
929
    }
930

931
    if( p_input->p->i_start > 0 )
932
    {
933
        vlc_value_t s;
934

935
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
936
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
937

938 939
        s.i_time = p_input->p->i_start;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
940 941 942 943 944 945
    }
    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;
    }
946
    p_input->p->b_fast_seek = var_GetBool( p_input, "input-fast-seek" );
Laurent Aimar's avatar
Laurent Aimar committed
947
}
948

Laurent Aimar's avatar
Laurent Aimar committed
949 950
static void LoadSubtitles