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 )
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
    {
        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

530 531 532
    if( !Init( p_input ) )
    {
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */
533

534 535 536
        /* Clean up */
        End( p_input );
    }
537

538
    input_SendEventDead( p_input );
539

540
    vlc_restorecancel( canc );
541
    return NULL;
542 543 544 545 546
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
547 548 549 550 551

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
552
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed, bool *pb_demux_polled, mtime_t i_start_mdate )
553
{
554
    int i_ret;
555

556
    *pb_changed = false;
557
    *pb_demux_polled = p_input->p->input.p_demux->pf_demux != NULL;
558

Laurent Aimar's avatar
Laurent Aimar committed
559
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
560
        ( p_input->p->i_run > 0 && i_start_mdate+p_input->p->i_run < mdate() ) )
561 562
        i_ret = 0; /* EOF */
    else
Laurent Aimar's avatar
Laurent Aimar committed
563
        i_ret = demux_Demux( p_input->p->input.p_demux );
564 565

    if( i_ret > 0 )
566
    {
567
        if( p_input->p->input.p_demux->info.i_update )
568
        {
569 570 571 572 573
            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;
            }
574 575 576 577 578 579
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
580 581
        }
    }
582

583 584
    if( i_ret == 0 )    /* EOF */
    {
585 586
        msg_Dbg( p_input, "EOF reached" );
        p_input->p->input.b_eof = true;
587
        es_out_Eos(p_input->p->p_es_out);
588 589 590 591 592 593 594 595
    }
    else if( i_ret < 0 )
    {
        input_ChangeState( p_input, ERROR_S );
    }

    if( i_ret > 0 && p_input->p->i_slave > 0 )
    {
596 597 598 599
        bool b_demux_polled;
        SlaveDemux( p_input, &b_demux_polled );

        *pb_demux_polled |= b_demux_polled;
600 601 602
    }
}

603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
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
    {
640
        val.f_float = 0.f;
641 642 643 644 645 646 647 648
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &val );
    }

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

649 650 651 652 653 654
/**
 * MainLoopInterface
 * It update the variables used by the interfaces
 */
static void MainLoopInterface( input_thread_t *p_input )
{
655 656 657
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
658 659

    /* update input status variables */
660
    if( demux_Control( p_input->p->input.p_demux,
661 662
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
663

664
    if( demux_Control( p_input->p->input.p_demux,
665 666
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
667
    p_input->p->i_time = i_time;
668 669

    if( demux_Control( p_input->p->input.p_demux,
670 671
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
672

673
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
674 675 676 677

    /* update current bookmark */
    vlc_mutex_lock( &p_input->p->p_item->lock );
    p_input->p->bookmark.i_time_offset = i_time;
678
    p_input->p->bookmark.i_byte_offset = -1;
679
    vlc_mutex_unlock( &p_input->p->p_item->lock );
680 681 682 683 684 685 686 687
}

/**
 * MainLoopStatistic
 * It updates the globals statics
 */
static void MainLoopStatistic( input_thread_t *p_input )
{
688
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
689
    input_SendEventStatistics( p_input );
690 691 692 693 694 695
}

/**
 * MainLoop
 * The main input loop.
 */
696
static void MainLoop( input_thread_t *p_input, bool b_interactive )
697 698
{
    mtime_t i_start_mdate = mdate();
699 700
    mtime_t i_intf_update = 0;
    mtime_t i_statistic_update = 0;
701
    mtime_t i_last_seek_mdate = 0;
702 703
    bool b_pause_after_eof = b_interactive &&
                             var_CreateGetBool( p_input, "play-and-pause" );
704

705
    while( vlc_object_alive( p_input ) && !p_input->b_error )
706 707 708
    {
        bool b_force_update;
        vlc_value_t val;
709
        mtime_t i_wakeup, i_current;
710
        bool b_paused;
711
        bool b_demux_polled;
712

713 714
        /* Demux data */
        b_force_update = false;
715
        i_wakeup = 0;
Laurent Aimar's avatar
Laurent Aimar committed
716
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
717 718
         * 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
719
        b_paused = p_input->p->i_state == PAUSE_S &&
720
                   ( !es_out_GetBuffering( p_input->p->p_es_out ) || p_input->p->input.b_eof );
721

722
        b_demux_polled = true;
723
        if( !b_paused )
724
        {
725 726
            if( !p_input->p->input.b_eof )
            {
727
                MainLoopDemux( p_input, &b_force_update, &b_demux_polled, i_start_mdate );
728

729 730
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
            }
731
            else if( !es_out_GetEmpty( p_input->p->p_es_out ) )
732 733 734 735
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = mdate() + INPUT_IDLE_SLEEP;
            }
736 737 738
            /* 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 )
739 740 741 742 743 744 745
            {
                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;
            }
746 747
            else
            {
748 749
                if( MainLoopTryRepeat( p_input, &i_start_mdate ) )
                    break;
750
                b_pause_after_eof = var_GetBool( p_input, "play-and-pause" );
751
            }
752
        }
753 754

        /* */
755
        do {
756
            mtime_t i_deadline = i_wakeup;
757
            if( b_paused || !b_demux_polled )
758 759 760
                i_deadline = __MIN( i_intf_update, i_statistic_update );

            /* Handle control */
761
            for( ;; )
762
            {
763 764 765 766 767 768 769 770 771 772
                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 */
773 774 775
                    mtime_t now = mdate();
                    if( i_last_seek_mdate + INT64_C(125000) >= now )
                        i_limit = __MIN( i_deadline, now + INT64_C(20000) );
776 777 778 779 780 781 782 783 784
                }

                int i_type;
                if( ControlPop( p_input, &i_type, &val, i_limit, b_buffering ) )
                {
                    if( b_buffering && i_limit < i_deadline )
                        continue;
                    break;
                }
785

786
#ifndef NDEBUG
787
                msg_Dbg( p_input, "control type=%d", i_type );
788
#endif
789

790
                if( Control( p_input, i_type, val ) )
791 792 793
                {
                    if( ControlIsSeekRequest( i_type ) )
                        i_last_seek_mdate = mdate();
794
                    b_force_update = true;
795
                }
796
            }
797

798 799 800 801 802 803 804 805 806 807 808
            /* 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
809
                i_statistic_update = i_current + CLOCK_FREQ;
810
            }
811

812
            /* Update the wakeup time */
813
            if( i_wakeup != 0 )
814
                i_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
815
        } while( i_current < i_wakeup );
816
    }
817

818
    if( !p_input->b_error )
819
        input_ChangeState( p_input, END_S );
820 821
}

822
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
823
{
824
    if( p_input->b_preparsing ) return;
825

826
    /* Prepare statistics */
827 828
#define INIT_COUNTER( c, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( STATS_##compute);
829
    if( libvlc_stats( p_input ) )
830
    {
831 832 833 834 835 836 837 838 839 840 841 842 843 844
        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 );
845 846 847
        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;
848
    }
849
}
850

851
#ifdef ENABLE_SOUT
852 853
static int InitSout( input_thread_t * p_input )
{
854 855
    if( p_input->b_preparsing )
        return VLC_SUCCESS;
856 857

    /* Find a usable sout and attach it to p_input */
858
    char *psz = var_GetNonEmptyString( p_input, "sout" );
859
    if( psz && strncasecmp( p_input->p->p_item->psz_uri, "vlc:", 4 ) )
860
    {
861
        p_input->p->p_sout  = input_resource_RequestSout( p_input->p->p_resource, NULL, psz );
862
        if( !p_input->p->p_sout )
Clément Stenac's avatar
Clément Stenac committed
863
        {
864 865 866 867 868
            input_ChangeState( p_input, ERROR_S );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
869
        }
870
        if( libvlc_stats( p_input ) )
871
        {
872 873 874
            INIT_COUNTER( sout_sent_packets, COUNTER );
            INIT_COUNTER( sout_sent_bytes, COUNTER );
            INIT_COUNTER( sout_send_bitrate, DERIVATIVE );
875
        }
876
    }
877
    else
878
    {
879
        input_resource_RequestSout( p_input->p->p_resource, NULL, NULL );
880
    }
881
    free( psz );
882

883 884
    return VLC_SUCCESS;
}
885
#endif
886

887 888
static void InitTitle( input_thread_t * p_input )
{
Laurent Aimar's avatar
Laurent Aimar committed
889
    input_source_t *p_master = &p_input->p->input;
890

Laurent Aimar's avatar
Laurent Aimar committed
891 892
    if( p_input->b_preparsing )
        return;
893

894
    vlc_mutex_lock( &p_input->p->p_item->lock );
895
    /* Create global title (from master) */
Laurent Aimar's avatar
Laurent Aimar committed
896 897 898 899
    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;
900 901 902 903
    if( p_input->p->i_title > 0 )
    {
        /* Setup variables */
        input_ControlVarNavigation( p_input );
904
        input_SendEventTitle( p_input, 0 );
905 906 907
    }

    /* Global flag */
908
    p_input->p->b_can_pace_control    = p_master->b_can_pace_control;
Laurent Aimar's avatar
Laurent Aimar committed
909 910
    p_input->p->b_can_pause        = p_master->b_can_pause;
    p_input->p->b_can_rate_control = p_master->b_can_rate_control;
911
    vlc_mutex_unlock( &p_input->p->p_item->lock );
912
}
913

914 915 916
static void StartTitle( input_thread_t * p_input )
{
    vlc_value_t val;
917

918 919 920 921 922
    /* 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
923

924 925 926 927 928
    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
929
    /* Start/stop/run time */
930
    p_input->p->i_start = llroundf(1000000.f
931
                                     * var_GetFloat( p_input, "start-time" ));
932
    p_input->p->i_stop  = llroundf(1000000.f
933
                                     * var_GetFloat( p_input, "stop-time" ));
934
    p_input->p->i_run   = llroundf(1000000.f
935
                                     * var_GetFloat( p_input, "run-time" ));
936
    if( p_input->p->i_run < 0 )
937
    {
938 939
        msg_Warn( p_input, "invalid run-time ignored" );
        p_input->p->i_run = 0;
Rafaël Carré's avatar
Rafaël Carré committed
940
    }
941

942
    if( p_input->p->i_start > 0 )
943
    {
944
        vlc_value_t s;
945

946
        msg_Dbg( p_input, "starting at time: %ds",
Ilkka Ollakka's avatar
Ilkka Ollakka committed
947
                 (int)( p_input->p->i_start / CLOCK_FREQ ) );
948

949 950
        s.i_time = p_input->p->i_start;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
951 952 953 954 955 956
    }
    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;
    }
957
    p_input->p->b_fast_seek = var_GetBool( p_input, "input-fast-seek" );
Laurent Aimar's avatar