input.c 101 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 )
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
    {
        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
 *
 * b_abort must be true when a user stop is requested and not because you have
 * detected an error or an eof. It will be used to properly send the
 * INPUT_EVENT_ABORT event.
 *
 * \param p_input the input thread to stop
 * \param b_abort true if the input has been aborted by a user request
 */
void input_Stop( input_thread_t *p_input, bool b_abort )
{
    /* 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 */
250
    ObjectKillChildrens( VLC_OBJECT(p_input) );
251 252 253 254 255 256 257 258

    vlc_mutex_lock( &p_input->p->lock_control );
    p_input->p->b_abort |= b_abort;
    vlc_mutex_unlock( &p_input->p->lock_control );

    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
}

259 260 261 262 263 264 265 266 267 268 269
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
270 271 272 273 274
/**
 * Close an input
 *
 * It does not call input_Stop itself.
 */
275
void input_Close( input_thread_t *p_input )
Laurent Aimar's avatar
Laurent Aimar committed
276
{
277 278
    input_Join( p_input );
    input_Release( p_input );
Laurent Aimar's avatar
Laurent Aimar committed
279 280
}

281 282 283 284 285 286 287 288 289 290 291 292
/**
 * 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;
}

293
/*****************************************************************************
294 295
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
296
 *
Laurent Aimar's avatar
Laurent Aimar committed
297
 * XXX Do not forget to update vlc_input.h if you add new variables.
298
 *****************************************************************************/
299
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
300
                               const char *psz_header, bool b_quick,
301
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
302
{
303
    input_thread_t *p_input = NULL;                 /* thread descriptor */
304
    int i;
305

306
    /* Allocate descriptor */
307
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ), "input" );
308
    if( p_input == NULL )
309
        return NULL;
310 311 312 313 314 315

    /* 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 );
316 317 318

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

319 320
    free( psz_name );

321 322
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
323 324
    {
        vlc_object_release( p_input );
325
        return NULL;
326
    }
327

328 329 330 331 332 333 334 335
    /* 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 );

336
    p_input->b_preparsing = b_quick;
337
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
338

339
    /* Init Common fields */
340
    p_input->b_eof = false;
341
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
342
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
343
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
344
    p_input->p->i_stop  = 0;
345
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
346
    p_input->p->i_title = 0;
347
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
348
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
349
    p_input->p->i_state = INIT_S;
350
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
351
    p_input->p->b_recording = false;
352 353
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
354
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
355
    p_input->p->attachment_demux = NULL;
356
    p_input->p->p_sout   = NULL;
357
    p_input->p->b_out_pace_control = false;
358

Pierre's avatar
Pierre committed
359
    vlc_gc_incref( p_item ); /* Released in Destructor() */
360 361 362
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
363
    p_input->p->input.p_demux  = NULL;
364
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
365 366 367
    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;
368 369 370 371
    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
372

373
    vlc_mutex_lock( &p_item->lock );
374 375

    if( !p_item->p_stats )
376 377
        p_item->p_stats = stats_NewInputStats( p_input );
    vlc_mutex_unlock( &p_item->lock );
378

379
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
380 381
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
382

383
    /* */
384
    if( p_resource )
385 386
    {
        p_input->p->p_resource_private = NULL;
387
        p_input->p->p_resource = input_resource_Hold( p_resource );
388
    }
389
    else
390 391
    {
        p_input->p->p_resource_private = input_resource_New( VLC_OBJECT( p_input ) );
392
        p_input->p->p_resource = input_resource_Hold( p_input->p->p_resource_private );
393
    }
394
    input_resource_SetInput( p_input->p->p_resource, p_input );
395

396
    /* Init control buffer */
397
    vlc_mutex_init( &p_input->p->lock_control );
398
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
399
    p_input->p->i_control = 0;
400
    p_input->p->b_abort = false;
401
    p_input->p->is_running = false;
402

403 404
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
405

406
    /* Create Objects variables for public Get and Set */
407
    input_ControlVarInit( p_input );
408

409
    /* */
410
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
411
    {
412 413
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
414
        {
415 416
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
417
            psz_parser = psz_bookmarks;
418
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
419
            {
420
                 seekpoint_t *p_seekpoint;
421 422 423 424 425 426 427 428
                 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 = ',';
429 430

                 p_seekpoint = vlc_seekpoint_New();
431 432 433 434 435
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
436
                         p_seekpoint->psz_name = strdup(psz_start + 5);
437 438 439 440 441 442 443
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
444
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
Ilkka Ollakka's avatar
Ilkka Ollakka committed
445
                                                        CLOCK_FREQ;
446 447
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
448
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
449
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
450 451 452 453 454
                                  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
455
            }
456
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
457 458 459
        }
    }

460
    /* Remove 'Now playing' info as it is probably outdated */
461
    input_item_SetNowPlaying( p_item, NULL );
462
    input_item_SetESNowPlaying( p_item, NULL );
463
    input_SendEventMeta( p_input );
464

465 466 467 468
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

469 470 471 472
    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->i_flags |= OBJECT_FLAGS_NOINTERACT;

473
    /* */
474
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
475
    vlc_mutex_init( &p_input->p->counters.counters_lock );
476

477 478 479
    p_input->p->p_es_out_display = input_EsOutNew( p_input, p_input->p->i_rate );
    p_input->p->p_es_out = NULL;

480 481 482
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

483 484 485
    return p_input;
}

486 487 488 489
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
490
{
491
#ifndef NDEBUG
492
    char * psz_name = input_item_GetName( p_input->p->p_item );
493 494 495 496
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

497 498 499
    if( p_input->p->p_es_out_display )
        es_out_Delete( p_input->p->p_es_out_display );

500 501
    if( p_input->p->p_resource )
        input_resource_Release( p_input->p->p_resource );
502
    if( p_input->p->p_resource_private )
503
        input_resource_Release( p_input->p->p_resource_private );
504

505
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
506

507 508
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

509
    for( int i = 0; i < p_input->p->i_control; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
510 511 512 513
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }
514

515
    vlc_cond_destroy( &p_input->p->wait_control );
516 517
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
518
}
519

520
/*****************************************************************************
521
 * Run: main thread loop
522 523
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
524
 *****************************************************************************/
525
static void *Run( void *obj )
Michel Kaempf's avatar
Michel Kaempf committed
526
{
527
    input_thread_t *p_input = (input_thread_t *)obj;
528
    const int canc = vlc_savecancel();
529

530
    if( Init( p_input ) )
531
        goto exit;
Michel Kaempf's avatar
Michel Kaempf committed
532

533
    MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
534 535 536

    /* Clean up */
    End( p_input );
537 538

exit:
539
    /* Tell we're dead */
540 541 542 543 544
    vlc_mutex_lock( &p_input->p->lock_control );
    const bool b_abort = p_input->p->b_abort;
    vlc_mutex_unlock( &p_input->p->lock_control );

    if( b_abort )
545
        input_SendEventAbort( p_input );
546
    input_SendEventDead( p_input );
547

548
    vlc_restorecancel( canc );
549
    return NULL;
550 551 552 553 554
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
555 556 557 558 559

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
560
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, bool *pb_demux_polled, mtime_t i_start_mdate )
561
{
562
    int i_ret;
563

564
    *pb_changed = false;
565
    *pb_demux_polled = p_input->p->input.p_demux->pf_demux != NULL;
566

Laurent Aimar's avatar
Laurent Aimar committed
567
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
568
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
569 570
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
571
        i_ret = demux_Demux( p_input->p->input.p_demux );
572 573

    if( i_ret > 0 )
574
    {
575
        if( p_input->p->input.p_demux->info.i_update )
576
        {
577 578 579 580 581
            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;
            }
582 583 584 585 586 587
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
588 589
        }
    }
590

591 592
    if( i_ret == 0 )    /* EOF */
    {
593 594
        msg_Dbg( p_input, "EOF reached" );
        p_input->p->input.b_eof = true;
595
        es_out_Eos(p_input->p->p_es_out);
596 597 598 599 600 601 602 603
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
    {
604 605 606 607
        bool b_demux_polled;
        SlaveDemux( p_input, &b_demux_polled );

        *pb_demux_polled |= b_demux_polled;
608 609 610
    }
}

611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647
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
    {
648
        val.f_float = 0.f;
649 650 651 652 653 654 655 656
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

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

657 658 659 660 661 662
/**
 * MainLoopInterface
 * It update the variables used by the interfaces
 */
static void MainLoopInterface( input_thread_t *p_input )
{
663 664 665
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
666 667

    /* update input status variables */
668
    if( demux_Control( p_input->p->input.p_demux,
669 670
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
671

672
    if( demux_Control( p_input->p->input.p_demux,
673 674
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
675
    p_input->p->i_time = i_time;
676 677

    if( demux_Control( p_input->p->input.p_demux,
678 679
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
680

681
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
682 683 684 685

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
686
    p_input->p->bookmark.i_byte_offset = -1;
687
    vlc_mutex_unlock( &p_input->p->p_item->lock );
688 689 690 691 692 693 694 695
}

/**
 * MainLoopStatistic
 * It updates the globals statics
 */
static void MainLoopStatistic( input_thread_t *p_input )
{
696
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
697
    input_SendEventStatistics( p_input );
698 699 700 701 702 703
}

/**
 * MainLoop
 * The main input loop.
 */
704
static void MainLoop( input_thread_t *p_input, bool b_interactive )
705 706
{
    mtime_t i_start_mdate = mdate();
707 708
    mtime_t i_intf_update = 0;
    mtime_t i_statistic_update = 0;
709
    mtime_t i_last_seek_mdate = 0;
710 711
    bool b_pause_after_eof = b_interactive &&
                             var_CreateGetBool( p_input, "play-and-pause" );
712

713
    while( vlc_object_alive( p_input ) && !p_input->b_error )
714 715 716
    {
        bool b_force_update;
        vlc_value_t val;
717
        mtime_t i_wakeup, i_current;
718
        bool b_paused;
719
        bool b_demux_polled;
720

721 722
        /* Demux data */
        b_force_update = false;
723
        i_wakeup = 0;
Laurent Aimar's avatar
Laurent Aimar committed
724
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
725 726
         * 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
727
        b_paused = p_input->p->i_state == PAUSE_S &&
728
                   ( !es_out_GetBuffering( p_input->p->p_es_out ) || p_input->p->input.b_eof );
729

730
        b_demux_polled = true;
731
        if( !b_paused )
732
        {
733 734
            if( !p_input->p->input.b_eof )
            {
735
                MainLoopDemux( p_input, &b_force_update, &b_demux_polled, i_start_mdate );
736

737 738
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
            }
739
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
740 741 742 743
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
744 745 746
            /* 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 )
747 748 749 750 751 752 753
            {
                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;
            }
754 755
            else
            {
756 757
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
758
                b_pause_after_eof = var_GetBool( p_input, "play-and-pause" );
759
            }
760
        }
761 762

        /* */
763
        do {
764
            mtime_t i_deadline = i_wakeup;
765
            if( b_paused || !b_demux_polled )
766 767 768
                i_deadline = __MIN( i_intf_update, i_statistic_update );

            /* Handle control */
769
            for( ;; )
770
            {
771 772 773 774 775 776 777 778 779 780
                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 */
781 782 783
                    mtime_t now = mdate();
                    if( i_last_seek_mdate + INT64_C(125000) >= now )
                        i_limit = __MIN( i_deadline, now + INT64_C(20000) );
784 785 786 787 788 789 790 791 792
                }

                int i_type;
                if( ControlPop( p_input, &i_type, &val, i_limit, b_buffering ) )
                {
                    if( b_buffering && i_limit < i_deadline )
                        continue;
                    break;
                }
793

794
#ifndef NDEBUG
795
                msg_Dbg( p_input, "control type=%d", i_type );
796
#endif
797

798
                if( Control( p_input, i_type, val ) )
799 800 801
                {
                    if( ControlIsSeekRequest( i_type ) )
                        i_last_seek_mdate = mdate();
802
                    b_force_update = true;
803
                }
804
            }
805

806 807 808 809 810 811 812 813 814 815 816
            /* 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
817
                i_statistic_update = i_current + CLOCK_FREQ;
818
            }
819

820
            /* Update the wakeup time */
821
            if( i_wakeup != 0 )
822
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
823
        } while( i_current < i_wakeup );
824
    }
825

826
    if( !p_input->b_error )
827
        input_ChangeState( p_input, END_S );
828 829
}

830
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
831
{
832
    if( p_input->b_preparsing ) return;
833

834
    /* Prepare statistics */
835 836
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
837
    if( libvlc_stats( p_input ) )
838
    {
839 840 841 842 843 844 845 846 847 848 849 850 851 852
        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 );
853 854 855
        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;
856
    }
857
}
858

859
#ifdef ENABLE_SOUT
860 861
static int InitSout( input_thread_t * p_input )
{
862 863
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
864 865

    /* Find a usable sout and attach it to p_input */
866
    char *psz = var_GetNonEmptyString( p_input, "sout" );
867
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
868
    {
869
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
870
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
871
        {
872 873 874 875 876
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
877
        }
878
        if( libvlc_stats( p_input ) )
879
        {
880 881 882
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
883
        }
884
    }
885
    else
886
    {
887
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
888
    }
889
    free( psz );
890

891 892
    return VLC_SUCCESS;
}
893
#endif
894

895 896
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
897
    input_source_t *p_master = &p_input->p->input;
898

Laurent Aimar's avatar
Laurent Aimar committed
899 900
    if( p_input->b_preparsing )
        return;
901

902
    vlc_mutex_lock( &p_input->p->p_item->lock );
903
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
904 905 906 907
    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;
908 909 910 911
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
912
        input_SendEventTitle( p_input, 0 );
913 914 915
    }

    /* Global flag */
916
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
917 918
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
919
    vlc_mutex_unlock( &p_input->p->p_item->lock );
920
}
921

922 923 924
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
925

926 927 928 929 930
    /* 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
931

932 933 934 935 936
    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
937
    /* Start/stop/run time */
938
    p_input->p->i_start = llroundf(1000000.f
939
                                     * var_GetFloat( p_input, "start-time" ));
940
    p_input->p->i_stop  = llroundf(1000000.f
941
                                     * var_GetFloat( p_input, "stop-time" ));
942
    p_input->p->i_run   = llroundf(1000000.f
943
                                     * var_GetFloat( p_input, "run-time" ));
944
    if( p_input->p->i_run < 0 )
945
    {
946 947
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
948
    }
949

950
    if( p_input->p->i_start > 0 )
951
    {
952
        vlc_value_t s;
953

954
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
955
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
956

957