input.c 106 KB
Newer Older
1 2
/*****************************************************************************
 * input.c: input thread
3
 *****************************************************************************
4
 * Copyright (C) 1998-2007 the VideoLAN team
5
 * $Id$
6
 *
7
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8
 *          Laurent Aimar <fenrir@via.ecp.fr>
9 10 11 12 13
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (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
17 18
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
19
 *
20 21
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
22
 * 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

34
#include <ctype.h>
Christophe Mutricy's avatar
Christophe Mutricy committed
35
#include <limits.h>
36
#include <assert.h>
37

38
#include "input_internal.h"
39
#include "event.h"
40
#include "es_out.h"
41
#include "es_out_timeshift.h"
42
#include "access.h"
43
#include "demux.h"
44
#include "stream.h"
45
#include "item.h"
46
#include "resource.h"
47

Clément Stenac's avatar
Clément Stenac committed
48 49
#include <vlc_sout.h>
#include "../stream_output/stream_output.h"
50

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_strings.h>
55

56 57 58 59
#ifdef HAVE_SYS_STAT_H
#   include <sys/stat.h>
#endif

60
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
61
 * Local prototypes
62
 *****************************************************************************/
63 64
static void Destructor( input_thread_t * p_input );

65 66
static  void *Run            ( vlc_object_t *p_this );
static  void *RunAndDestroy  ( vlc_object_t *p_this );
67

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
68
static input_thread_t * Create  ( vlc_object_t *, input_item_t *,
69
                                  const char *, bool, input_resource_t * );
70
static  int             Init    ( input_thread_t *p_input );
71 72
static void             End     ( input_thread_t *p_input );
static void             MainLoop( input_thread_t *p_input );
73

Laurent Aimar's avatar
Laurent Aimar committed
74 75
static void ObjectKillChildrens( input_thread_t *, vlc_object_t * );

76
static inline int ControlPop( input_thread_t *, int *, vlc_value_t *, mtime_t i_deadline );
77
static void       ControlReduce( input_thread_t * );
78
static bool Control( input_thread_t *, int, vlc_value_t );
79

80 81 82 83 84
static int  UpdateTitleSeekpointFromAccess( input_thread_t * );
static void UpdateGenericFromAccess( input_thread_t * );

static int  UpdateTitleSeekpointFromDemux( input_thread_t * );
static void UpdateGenericFromDemux( input_thread_t * );
Michel Kaempf's avatar
Michel Kaempf committed
85

86
static void MRLSections( input_thread_t *, char *, int *, int *, int *, int *);
87 88

static input_source_t *InputSourceNew( input_thread_t *);
89
static int  InputSourceInit( input_thread_t *, input_source_t *,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
90
                             const char *, const char *psz_forced_demux );
91
static void InputSourceClean( input_source_t * );
Laurent Aimar's avatar
Laurent Aimar committed
92 93
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

94 95
/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
96 97
static void SlaveDemux( input_thread_t *p_input );
static void SlaveSeek( input_thread_t *p_input );
98

99 100
static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta );
static void InputUpdateMeta( input_thread_t *p_input, vlc_meta_t *p_meta );
101 102 103
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char *psz_access, const char *psz_path );
104

105 106 107
static void AppendAttachment( int *pi_attachment, input_attachment_t ***ppp_attachment,
                              int i_new, input_attachment_t **pp_new );

108 109
static void SubtitleAdd( input_thread_t *p_input, char *psz_subtitle, bool b_forced );

110 111
static void input_ChangeState( input_thread_t *p_input, int i_state ); /* TODO fix name */

112
/*****************************************************************************
113 114
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
115
 *
Laurent Aimar's avatar
Laurent Aimar committed
116
 * XXX Do not forget to update vlc_input.h if you add new variables.
117
 *****************************************************************************/
118
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
119
                               const char *psz_header, bool b_quick,
120
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
121
{
122
    static const char input_name[] = "input";
123
    input_thread_t *p_input = NULL;                 /* thread descriptor */
124
    int i;
125

126
    /* Allocate descriptor */
127 128
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ),
                                 VLC_OBJECT_INPUT, input_name );
129
    if( p_input == NULL )
130
        return NULL;
131 132 133 134 135 136

    /* 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 );
137 138 139

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

140 141 142 143 144 145 146
    free( psz_name );

    /* Start a timer to mesure how long it takes
     * to launch an input */
    stats_TimerStart( p_input, psz_timer_name,
        STATS_TIMER_INPUT_LAUNCHING );

147 148 149
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
        return NULL;
150

151
    p_input->b_preparsing = b_quick;
152
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
153

154
    /* Init Common fields */
155
    p_input->b_eof = false;
156
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
157
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
158
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
159
    p_input->p->i_stop  = 0;
160
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
161
    p_input->p->i_title = 0;
162
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
163
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
164
    p_input->p->i_state = INIT_S;
165
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
166
    p_input->p->b_recording = false;
167 168
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
169
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
170 171
    p_input->p->p_es_out_display = NULL;
    p_input->p->p_es_out = NULL;
172
    p_input->p->p_sout   = NULL;
173
    p_input->p->b_out_pace_control = false;
174

Pierre's avatar
Pierre committed
175
    vlc_gc_incref( p_item ); /* Released in Destructor() */
176 177 178
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
179 180 181
    p_input->p->input.p_access = NULL;
    p_input->p->input.p_stream = NULL;
    p_input->p->input.p_demux  = NULL;
182
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
183 184 185
    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;
186 187 188 189
    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
190

191
    vlc_mutex_lock( &p_item->lock );
192 193

    if( !p_item->p_stats )
194 195
        p_item->p_stats = stats_NewInputStats( p_input );
    vlc_mutex_unlock( &p_item->lock );
196

197
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
198 199
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
200

201
    /* */
202 203
    if( p_resource )
        p_input->p->p_resource = p_resource;
204
    else
205 206
        p_input->p->p_resource = input_resource_New();
    input_resource_SetInput( p_input->p->p_resource, p_input );
207

208
    /* Init control buffer */
209
    vlc_mutex_init( &p_input->p->lock_control );
210
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
211
    p_input->p->i_control = 0;
212
    p_input->p->b_abort = false;
213

214
    /* Parse input options */
215
    vlc_mutex_lock( &p_item->lock );
Pierre d'Herbemont's avatar
Pierre d'Herbemont committed
216
    assert( (int)p_item->optflagc == p_item->i_options );
217
    for( i = 0; i < p_item->i_options; i++ )
218 219
        var_OptionParse( VLC_OBJECT(p_input), p_item->ppsz_options[i],
                         !!(p_item->optflagv[i] & VLC_INPUT_OPTION_TRUSTED) );
220
    vlc_mutex_unlock( &p_item->lock );
221

222 223
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
224

225
    /* Create Objects variables for public Get and Set */
226
    input_ControlVarInit( p_input );
227

228
    /* */
229
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
230
    {
231 232
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
233
        {
234 235
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
236
            psz_parser = psz_bookmarks;
237
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
238
            {
239
                 seekpoint_t *p_seekpoint;
240 241 242 243 244 245 246 247
                 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 = ',';
248 249

                 p_seekpoint = vlc_seekpoint_New();
250 251 252 253 254
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
255
                         p_seekpoint->psz_name = strdup(psz_start + 5);
256 257 258 259 260 261 262
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
263 264
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
                                                        1000000;
265 266
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
267
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
268
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
269 270 271 272 273
                                  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
274
            }
275
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
276 277 278
        }
    }

279
    /* Remove 'Now playing' info as it is probably outdated */
280
    input_item_SetNowPlaying( p_item, NULL );
281
    input_SendEventMeta( p_input );
282

283 284 285 286
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

287
    /* */
288
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
289
    vlc_mutex_init( &p_input->p->counters.counters_lock );
290

291 292 293
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

294 295 296
    /* Attach only once we are ready */
    vlc_object_attach( p_input, p_parent );

297 298 299
    return p_input;
}

300 301 302 303
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
304
{
305
#ifndef NDEBUG
306
    char * psz_name = input_item_GetName( p_input->p->p_item );
307 308 309 310
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

311 312
    stats_TimerDump( p_input, STATS_TIMER_INPUT_LAUNCHING );
    stats_TimerClean( p_input, STATS_TIMER_INPUT_LAUNCHING );
313

314 315
    if( p_input->p->p_resource )
        input_resource_Delete( p_input->p->p_resource );
316

317
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
318

319 320
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

321
    vlc_cond_destroy( &p_input->p->wait_control );
322 323
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
324
}
325

326
/**
327 328
 * Initialize an input thread and run it. You will need to monitor the
 * thread to clean up after it is done
329 330 331 332 333 334 335
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \return a pointer to the spawned input thread
 */
input_thread_t *__input_CreateThread( vlc_object_t *p_parent,
                                      input_item_t *p_item )
336
{
337
    return __input_CreateThreadExtended( p_parent, p_item, NULL, NULL );
338 339
}

340 341 342
/* */
input_thread_t *__input_CreateThreadExtended( vlc_object_t *p_parent,
                                              input_item_t *p_item,
343
                                              const char *psz_log, input_resource_t *p_resource )
344
{
345
    input_thread_t *p_input;
346

347
    p_input = Create( p_parent, p_item, psz_log, false, p_resource );
348 349 350
    if( !p_input )
        return NULL;

Sam Hocevar's avatar
Sam Hocevar committed
351
    /* Create thread and wait for its readiness. */
352
    if( vlc_thread_create( p_input, "input", Run,
353
                           VLC_THREAD_PRIORITY_INPUT ) )
Michel Kaempf's avatar
Michel Kaempf committed
354
    {
355
        input_ChangeState( p_input, ERROR_S );
356
        msg_Err( p_input, "cannot create input thread" );
357 358
        vlc_object_detach( p_input );
        vlc_object_release( p_input );
359
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
360
    }
361

362
    return p_input;
Michel Kaempf's avatar
Michel Kaempf committed
363 364
}

365
/**
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
366
 * Initialize an input thread and run it. This thread will clean after itself,
367 368 369 370 371
 * you can forget about it. It can work either in blocking or non-blocking mode
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \param b_block should we block until read is finished ?
372
 * \return an error code, VLC_SUCCESS on success
373
 */
374
int __input_Read( vlc_object_t *p_parent, input_item_t *p_item,
375
                   bool b_block )
376
{
377
    input_thread_t *p_input;
378

379
    p_input = Create( p_parent, p_item, NULL, false, NULL );
380
    if( !p_input )
381 382
        return VLC_EGENERIC;

383
    if( b_block )
384
    {
385
        RunAndDestroy( VLC_OBJECT(p_input) );
Clément Stenac's avatar
Clément Stenac committed
386
        return VLC_SUCCESS;
387
    }
388
    else
389
    {
390
        if( vlc_thread_create( p_input, "input", RunAndDestroy,
391
                               VLC_THREAD_PRIORITY_INPUT ) )
392
        {
393
            input_ChangeState( p_input, ERROR_S );
394
            msg_Err( p_input, "cannot create input thread" );
395
            vlc_object_release( p_input );
Clément Stenac's avatar
Clément Stenac committed
396
            return VLC_EGENERIC;
397
        }
398
    }
399
    return VLC_SUCCESS;
400
}
401

402 403
/**
 * Initialize an input and initialize it to preparse the item
404
 * This function is blocking. It will only accept parsing regular files.
405 406 407 408 409
 *
 * \param p_parent a vlc_object_t
 * \param p_item an input item
 * \return VLC_SUCCESS or an error
 */
410
int input_Preparse( vlc_object_t *p_parent, input_item_t *p_item )
411
{
412
    input_thread_t *p_input;
413

414
    /* Allocate descriptor */
415
    p_input = Create( p_parent, p_item, NULL, true, NULL );
416 417 418
    if( !p_input )
        return VLC_EGENERIC;

419 420
    if( !Init( p_input ) )
        End( p_input );
421

422 423
    vlc_object_detach( p_input );
    vlc_object_release( p_input );
424 425 426 427

    return VLC_SUCCESS;
}

428 429 430 431 432
/**
 * Request a running input thread to stop and die
 *
 * \param the input thread to stop
 */
433
void input_StopThread( input_thread_t *p_input, bool b_abort )
434 435 436 437
{
    /* 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 */
438
    ObjectKillChildrens( p_input, VLC_OBJECT(p_input) );
Michel Kaempf's avatar
Michel Kaempf committed
439

440 441 442 443
    vlc_mutex_lock( &p_input->p->lock_control );
    p_input->p->b_abort |= b_abort;
    vlc_mutex_unlock( &p_input->p->lock_control );

444
    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
445 446
}

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
447
input_resource_t *input_DetachResource( input_thread_t *p_input )
448
{
449
    assert( p_input->b_dead );
450

451
    input_resource_SetInput( p_input->p->p_resource, NULL );
452

453
    input_resource_t *p_resource = input_resource_Detach( p_input->p->p_resource );
454
    p_input->p->p_sout = NULL;
455

456
    return p_resource;
457 458
}

459 460 461 462 463 464 465 466 467 468 469 470
/**
 * 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;
}

Laurent Aimar's avatar
Laurent Aimar committed
471 472 473 474 475 476 477 478
/*****************************************************************************
 * ObjectKillChildrens
 *****************************************************************************/
static void ObjectKillChildrens( input_thread_t *p_input, vlc_object_t *p_obj )
{
    vlc_list_t *p_list;
    int i;

479
    /* FIXME ObjectKillChildrens seems a very bad idea in fact */
480 481
    i = vlc_internals( p_obj )->i_object_type;
    if( i == VLC_OBJECT_VOUT ||i == VLC_OBJECT_AOUT ||
482
        p_obj == VLC_OBJECT(p_input->p->p_sout) ||
483
        i == VLC_OBJECT_DECODER || i == VLC_OBJECT_PACKETIZER )
Laurent Aimar's avatar
Laurent Aimar committed
484 485 486 487 488 489 490 491 492 493
        return;

    vlc_object_kill( p_obj );

    p_list = vlc_list_children( p_obj );
    for( i = 0; i < p_list->i_count; i++ )
        ObjectKillChildrens( p_input, p_list->p_values[i].p_object );
    vlc_list_release( p_list );
}

494
/*****************************************************************************
495
 * Run: main thread loop
496 497
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
498
 *****************************************************************************/
499
static void *Run( vlc_object_t *p_this )
Michel Kaempf's avatar
Michel Kaempf committed
500
{
501
    input_thread_t *p_input = (input_thread_t *)p_this;
502
    const int canc = vlc_savecancel();
503

504
    if( Init( p_input ) )
505
        goto exit;
Michel Kaempf's avatar
Michel Kaempf committed
506

507 508 509 510
    MainLoop( p_input );

    /* Clean up */
    End( p_input );
511 512

exit:
513
    /* Tell we're dead */
514 515
    if( p_input->p->b_abort )
        input_SendEventAbort( p_input );
516
    input_SendEventDead( p_input );
517

518
    vlc_restorecancel( canc );
519
    return NULL;
520 521 522
}

/*****************************************************************************
523
 * RunAndDestroy: main thread loop
524 525 526
 * This is the "just forget me" thread that spawns the input processing chain,
 * reads the stream, cleans up and releases memory
 *****************************************************************************/
527
static void *RunAndDestroy( vlc_object_t *p_this )
528
{
529
    input_thread_t *p_input = (input_thread_t *)p_this;
530
    const int canc = vlc_savecancel();
531

532
    if( Init( p_input ) )
533
        goto exit;
534 535 536 537 538 539

    MainLoop( p_input );

    /* Clean up */
    End( p_input );

540
exit:
541
    /* Release memory */
542
    vlc_object_release( p_input );
543 544
    vlc_restorecancel( canc );
    return NULL;
545 546 547 548 549
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
550 551 552 553 554 555

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, mtime_t *pi_start_mdate )
556
{
557
    int i_ret;
558

559
    *pb_changed = false;
560

Laurent Aimar's avatar
Laurent Aimar committed
561
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
562 563 564
        ( p_input->p->i_run > 0 && *pi_start_mdate+p_input->p->i_run < mdate() ) )
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
565
        i_ret = demux_Demux( p_input->p->input.p_demux );
566 567

    if( i_ret > 0 )
568
    {
569
        if( p_input->p->input.p_demux->info.i_update )
570
        {
571 572 573 574 575 576
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
577
        }
578 579
        else if( p_input->p->input.p_access &&
                 p_input->p->input.p_access->info.i_update )
580
        {
581 582 583 584 585 586
            if( !p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromAccess( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromAccess( p_input );
587 588
        }
    }
589

590 591
    if( i_ret == 0 )    /* EOF */
    {
592 593
        int i_repeat = var_GetInteger( p_input, "input-repeat" );
        if( i_repeat == 0 )
594
        {
595 596 597 598 599 600 601 602
            /* End of file - we do not set b_die because only the
             * playlist is allowed to do so. */
            msg_Dbg( p_input, "EOF reached" );
            p_input->p->input.b_eof = true;
        }
        else
        {
            vlc_value_t val;
603

604 605
            msg_Dbg( p_input, "repeating the same input (%d)", i_repeat );
            if( i_repeat > 0 )
606
            {
607 608
                i_repeat--;
                var_SetInteger( p_input, "input-repeat", i_repeat );
609
            }
610

611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626
            /* 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 )
627
            {
628 629 630
                val.i_time = p_input->p->i_start;
                input_ControlPush( p_input, INPUT_CONTROL_SET_TIME,
                                   &val );
631
            }
632
            else
633
            {
634 635 636
                val.f_float = 0.0;
                input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION,
                                   &val );
637
            }
638

639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659
            /* */
            *pi_start_mdate = mdate();
        }
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
    {
        SlaveDemux( p_input );
    }
}

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

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

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

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

678
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
679 680 681 682 683 684 685

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

/**
 * MainLoopStatistic
 * It updates the globals statics
 */
static void MainLoopStatistic( input_thread_t *p_input )
{
694
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
695
    input_SendEventStatistics( p_input );
696 697 698 699 700 701 702 703 704
}

/**
 * MainLoop
 * The main input loop.
 */
static void MainLoop( input_thread_t *p_input )
{
    mtime_t i_start_mdate = mdate();
705 706
    mtime_t i_intf_update = 0;
    mtime_t i_statistic_update = 0;
707 708 709 710

    /* Start the timer */
    stats_TimerStop( p_input, STATS_TIMER_INPUT_LAUNCHING );

711
    while( vlc_object_alive( p_input ) && !p_input->b_error )
712 713 714 715
    {
        bool b_force_update;
        int i_type;
        vlc_value_t val;
716
        mtime_t i_current;
717
        mtime_t i_deadline;
718
        mtime_t i_wakeup;
719
        bool b_paused;
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 );
729 730

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

736 737 738 739 740 741 742 743 744 745 746
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
            }
            else if( !p_input->b_eof && !es_out_GetEmpty( p_input->p->p_es_out ) )
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
            else
            {
                break;
            }
747
        }
748 749

        /* */
750 751
        do {
            i_deadline = i_wakeup;
752
            if( b_paused )
753 754 755 756
                i_deadline = __MIN( i_intf_update, i_statistic_update );

            /* Handle control */
            ControlReduce( p_input );
757
            while( !ControlPop( p_input, &i_type, &val, i_deadline ) )
758
            {
759

760
                msg_Dbg( p_input, "control type=%d", i_type );
761

762 763 764
                if( Control( p_input, i_type, val ) )
                    b_force_update = true;
            }
765

766 767 768 769 770 771 772 773 774 775 776 777 778
            /* 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 );
                i_statistic_update = i_current + INT64_C(1000000);
            }
779 780 781 782

            /* Check if i_wakeup is still valid */
            if( i_wakeup != 0 )
            {
783
                mtime_t i_new_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
784 785 786
                if( !i_new_wakeup )
                    i_wakeup = 0;
            }
787
        } while( i_current < i_wakeup );
788
    }
789

790
    if( !p_input->b_error )
791
        input_ChangeState( p_input, END_S );
792 793
}

794
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
795
{
796
    if( p_input->b_preparsing ) return;
797

798 799 800
    /* Prepare statistics */
#define INIT_COUNTER( c, type, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( p_input, VLC_VAR_##type, STATS_##compute);
801
    if( libvlc_stats( p_input ) )
802 803 804 805 806 807
    {
        INIT_COUNTER( read_bytes, INTEGER, COUNTER );
        INIT_COUNTER( read_packets, INTEGER, COUNTER );
        INIT_COUNTER( demux_read, INTEGER, COUNTER );
        INIT_COUNTER( input_bitrate, FLOAT, DERIVATIVE );
        INIT_COUNTER( demux_bitrate, FLOAT, DERIVATIVE );
808 809
        INIT_COUNTER( demux_corrupted, INTEGER, COUNTER );
        INIT_COUNTER( demux_discontinuity, INTEGER, COUNTER );
810 811 812 813 814 815 816 817 818 819 820 821 822 823
        INIT_COUNTER( played_abuffers, INTEGER, COUNTER );
        INIT_COUNTER( lost_abuffers, INTEGER, COUNTER );
        INIT_COUNTER( displayed_pictures, INTEGER, COUNTER );
        INIT_COUNTER( lost_pictures, INTEGER, COUNTER );
        INIT_COUNTER( decoded_audio, INTEGER, COUNTER );
        INIT_COUNTER( decoded_video, INTEGER, COUNTER );
        INIT_COUNTER( decoded_sub, INTEGER, COUNTER );
        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;
        if( p_input->p->counters.p_demux_bitrate )
            p_input->p->counters.p_demux_bitrate->update_interval = 1000000;
        if( p_input->p->counters.p_input_bitrate )
            p_input->p->counters.p_input_bitrate->update_interval = 1000000;
824
    }
825
}
826

827
#ifdef ENABLE_SOUT
828 829
static int InitSout( input_thread_t * p_input )
{
830 831
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
832 833

    /* Find a usable sout and attach it to p_input */
834
    char *psz = var_GetNonEmptyString( p_input, "sout" );
835
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
836
    {
837
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
838
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
839
        {
840 841 842 843 844
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
845
        }
846
        if( libvlc_stats( p_input ) )
847
        {
848
            INIT_COUNTER( sout_sent_packets, INTEGER, COUNTER );
849
            INIT_COUNTER( sout_sent_bytes, INTEGER, COUNTER );
850 851 852 853
            INIT_COUNTER( sout_send_bitrate, FLOAT, DERIVATIVE );
            if( p_input->p->counters.p_sout_send_bitrate )
                 p_input->p->counters.p_sout_send_bitrate->update_interval =
                         1000000;
854
        }
855
    }
856
    else
857
    {
858
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
859
    }
860
    free( psz );
861

862 863
    return VLC_SUCCESS;
}
864
#endif
865

866 867
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
868
    input_source_t *p_master = &p_input->p->input;
869

Laurent Aimar's avatar
Laurent Aimar committed
870 871
    if( p_input->b_preparsing )
        return;
872

873
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
874 875 876 877
    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;
878 879 880 881
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
882
        input_SendEventTitle( p_input, 0 );
883 884 885
    }

    /* Global flag */
886
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
887 888
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
889
}
890

891 892 893
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
894

895 896 897 898 899
    /* 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
900

901 902 903 904 905
    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