input.c 107 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>
Laurent Aimar's avatar
Laurent Aimar committed
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>
Sam Hocevar's avatar
 
Sam Hocevar committed
33

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

Laurent Aimar's avatar
Laurent Aimar committed
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"
Sam Hocevar's avatar
 
Sam Hocevar committed
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 );
Laurent Aimar's avatar
Laurent Aimar committed
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 );
Laurent Aimar's avatar
Laurent Aimar committed
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 );
Laurent Aimar's avatar
Laurent Aimar committed
77
static void       ControlReduce( input_thread_t * );
78 79
static void       ControlRelease( int i_type, vlc_value_t val );
static bool       Control( input_thread_t *, int, vlc_value_t );
80

81 82 83 84 85
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
86

87
static void MRLSections( input_thread_t *, char *, int *, int *, int *, int *);
88 89

static input_source_t *InputSourceNew( input_thread_t *);
Laurent Aimar's avatar
 
Laurent Aimar committed
90
static int  InputSourceInit( input_thread_t *, input_source_t *,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
91
                             const char *, const char *psz_forced_demux );
92
static void InputSourceClean( input_source_t * );
Laurent Aimar's avatar
Laurent Aimar committed
93 94
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

95 96
/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
97 98
static void SlaveDemux( input_thread_t *p_input );
static void SlaveSeek( input_thread_t *p_input );
99

100 101
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 );
102 103 104
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char *psz_access, const char *psz_path );
105

106 107 108
static void AppendAttachment( int *pi_attachment, input_attachment_t ***ppp_attachment,
                              int i_new, input_attachment_t **pp_new );

109 110
static void SubtitleAdd( input_thread_t *p_input, char *psz_subtitle, bool b_forced );

111 112
static void input_ChangeState( input_thread_t *p_input, int i_state ); /* TODO fix name */

113 114 115
/* Do not let a pts_delay from access/demux go beyong 60s */
#define INPUT_PTS_DELAY_MAX INT64_C(601000000)

116
/*****************************************************************************
117 118
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
Laurent Aimar's avatar
Laurent Aimar committed
119
 *
Laurent Aimar's avatar
Laurent Aimar committed
120
 * XXX Do not forget to update vlc_input.h if you add new variables.
121
 *****************************************************************************/
122
static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
123
                               const char *psz_header, bool b_quick,
124
                               input_resource_t *p_resource )
Michel Kaempf's avatar
Michel Kaempf committed
125
{
126
    static const char input_name[] = "input";
127
    input_thread_t *p_input = NULL;                 /* thread descriptor */
128
    int i;
129

130
    /* Allocate descriptor */
131 132
    p_input = vlc_custom_create( p_parent, sizeof( *p_input ),
                                 VLC_OBJECT_INPUT, input_name );
133
    if( p_input == NULL )
134
        return NULL;
135 136 137 138 139 140

    /* 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 );
141 142 143

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

144 145 146 147 148 149 150
    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 );

151 152 153
    p_input->p = calloc( 1, sizeof( input_thread_private_t ) );
    if( !p_input->p )
        return NULL;
154

155
    p_input->b_preparsing = b_quick;
156
    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
157

Laurent Aimar's avatar
Laurent Aimar committed
158
    /* Init Common fields */
159
    p_input->b_eof = false;
160
    p_input->p->b_can_pace_control = true;
Clément Stenac's avatar
Clément Stenac committed
161
    p_input->p->i_start = 0;
Laurent Aimar's avatar
Laurent Aimar committed
162
    p_input->p->i_time  = 0;
Clément Stenac's avatar
Clément Stenac committed
163
    p_input->p->i_stop  = 0;
164
    p_input->p->i_run   = 0;
Clément Stenac's avatar
Clément Stenac committed
165
    p_input->p->i_title = 0;
166
    p_input->p->title = NULL;
Clément Stenac's avatar
Clément Stenac committed
167
    p_input->p->i_title_offset = p_input->p->i_seekpoint_offset = 0;
Laurent Aimar's avatar
Laurent Aimar committed
168
    p_input->p->i_state = INIT_S;
169
    p_input->p->i_rate = INPUT_RATE_DEFAULT;
170
    p_input->p->b_recording = false;
171 172
    memset( &p_input->p->bookmark, 0, sizeof(p_input->p->bookmark) );
    TAB_INIT( p_input->p->i_bookmark, p_input->p->pp_bookmark );
173
    TAB_INIT( p_input->p->i_attachment, p_input->p->attachment );
174 175
    p_input->p->p_es_out_display = NULL;
    p_input->p->p_es_out = NULL;
176
    p_input->p->p_sout   = NULL;
177
    p_input->p->b_out_pace_control = false;
Laurent Aimar's avatar
Laurent Aimar committed
178

Pierre's avatar
Pierre committed
179
    vlc_gc_incref( p_item ); /* Released in Destructor() */
180 181 182
    p_input->p->p_item = p_item;

    /* Init Input fields */
Clément Stenac's avatar
Clément Stenac committed
183 184 185
    p_input->p->input.p_access = NULL;
    p_input->p->input.p_stream = NULL;
    p_input->p->input.p_demux  = NULL;
186
    p_input->p->input.b_title_demux = false;
Clément Stenac's avatar
Clément Stenac committed
187 188 189
    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;
190 191 192 193
    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
194

195
    vlc_mutex_lock( &p_item->lock );
196 197

    if( !p_item->p_stats )
198 199
        p_item->p_stats = stats_NewInputStats( p_input );
    vlc_mutex_unlock( &p_item->lock );
Clément Stenac's avatar
Clément Stenac committed
200

201
    /* No slave */
Clément Stenac's avatar
Clément Stenac committed
202 203
    p_input->p->i_slave = 0;
    p_input->p->slave   = NULL;
204

205
    /* */
206 207
    if( p_resource )
        p_input->p->p_resource = p_resource;
208
    else
209 210
        p_input->p->p_resource = input_resource_New();
    input_resource_SetInput( p_input->p->p_resource, p_input );
211

Laurent Aimar's avatar
Laurent Aimar committed
212
    /* Init control buffer */
213
    vlc_mutex_init( &p_input->p->lock_control );
214
    vlc_cond_init( &p_input->p->wait_control );
Clément Stenac's avatar
Clément Stenac committed
215
    p_input->p->i_control = 0;
216
    p_input->p->b_abort = false;
217

Gildas Bazin's avatar
 
Gildas Bazin committed
218
    /* Parse input options */
219
    vlc_mutex_lock( &p_item->lock );
Pierre d'Herbemont's avatar
Pierre d'Herbemont committed
220
    assert( (int)p_item->optflagc == p_item->i_options );
221
    for( i = 0; i < p_item->i_options; i++ )
222 223
        var_OptionParse( VLC_OBJECT(p_input), p_item->ppsz_options[i],
                         !!(p_item->optflagv[i] & VLC_INPUT_OPTION_TRUSTED) );
224
    vlc_mutex_unlock( &p_item->lock );
Gildas Bazin's avatar
 
Gildas Bazin committed
225

Laurent Aimar's avatar
Laurent Aimar committed
226 227
    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
228

Laurent Aimar's avatar
Laurent Aimar committed
229
    /* Create Objects variables for public Get and Set */
230
    input_ControlVarInit( p_input );
231

232
    /* */
233
    if( !p_input->b_preparsing )
Gildas Bazin's avatar
Gildas Bazin committed
234
    {
Laurent Aimar's avatar
Laurent Aimar committed
235 236
        char *psz_bookmarks = var_GetNonEmptyString( p_input, "bookmarks" );
        if( psz_bookmarks )
Gildas Bazin's avatar
Gildas Bazin committed
237
        {
238 239
            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
Laurent Aimar's avatar
Laurent Aimar committed
240
            psz_parser = psz_bookmarks;
241
            while( (psz_start = strchr( psz_parser, '{' ) ) )
Gildas Bazin's avatar
Gildas Bazin committed
242
            {
243
                 seekpoint_t *p_seekpoint;
244 245 246 247 248 249 250 251
                 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 = ',';
252 253

                 p_seekpoint = vlc_seekpoint_New();
254 255 256 257 258
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
259
                         p_seekpoint->psz_name = strdup(psz_start + 5);
260 261 262 263 264 265 266
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
267 268
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) *
                                                        1000000;
269 270
                     }
                     psz_start = psz_end + 1;
Gildas Bazin's avatar
Gildas Bazin committed
271
                }
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
272
                msg_Dbg( p_input, "adding bookmark: %s, bytes=%"PRId64", time=%"PRId64,
273 274 275 276 277
                                  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
278
            }
Laurent Aimar's avatar
Laurent Aimar committed
279
            free( psz_bookmarks );
Gildas Bazin's avatar
Gildas Bazin committed
280 281 282
        }
    }

283
    /* Remove 'Now playing' info as it is probably outdated */
284
    input_item_SetNowPlaying( p_item, NULL );
285
    input_SendEventMeta( p_input );
286

287 288 289 290
    /* */
    if( p_input->b_preparsing )
        p_input->i_flags |= OBJECT_FLAGS_QUIET | OBJECT_FLAGS_NOINTERACT;

291
    /* */
292
    memset( &p_input->p->counters, 0, sizeof( p_input->p->counters ) );
293
    vlc_mutex_init( &p_input->p->counters.counters_lock );
294

295 296 297
    /* Set the destructor when we are sure we are initialized */
    vlc_object_set_destructor( p_input, (vlc_destructor_t)Destructor );

298 299 300
    /* Attach only once we are ready */
    vlc_object_attach( p_input, p_parent );

301 302 303
    return p_input;
}

304 305 306 307
/**
 * Input destructor (called when the object's refcount reaches 0).
 */
static void Destructor( input_thread_t * p_input )
308
{
309
#ifndef NDEBUG
310
    char * psz_name = input_item_GetName( p_input->p->p_item );
311 312 313 314
    msg_Dbg( p_input, "Destroying the input for '%s'", psz_name);
    free( psz_name );
#endif

315 316
    stats_TimerDump( p_input, STATS_TIMER_INPUT_LAUNCHING );
    stats_TimerClean( p_input, STATS_TIMER_INPUT_LAUNCHING );
317

318 319
    if( p_input->p->p_resource )
        input_resource_Delete( p_input->p->p_resource );
320

321
    vlc_gc_decref( p_input->p->p_item );
Pierre's avatar
Pierre committed
322

323 324
    vlc_mutex_destroy( &p_input->p->counters.counters_lock );

325
    for( int i = 0; i < p_input->p->i_control; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
326 327 328 329
    {
        input_control_t *p_ctrl = &p_input->p->control[i];
        ControlRelease( p_ctrl->i_type, p_ctrl->val );
    }
330

331
    vlc_cond_destroy( &p_input->p->wait_control );
332 333
    vlc_mutex_destroy( &p_input->p->lock_control );
    free( p_input->p );
334
}
335

336
/**
337 338
 * Initialize an input thread and run it. You will need to monitor the
 * thread to clean up after it is done
339 340 341 342 343 344 345
 *
 * \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 )
346
{
347
    return __input_CreateThreadExtended( p_parent, p_item, NULL, NULL );
348 349
}

350 351 352
/* */
input_thread_t *__input_CreateThreadExtended( vlc_object_t *p_parent,
                                              input_item_t *p_item,
353
                                              const char *psz_log, input_resource_t *p_resource )
354
{
355
    input_thread_t *p_input;
356

357
    p_input = Create( p_parent, p_item, psz_log, false, p_resource );
358 359 360
    if( !p_input )
        return NULL;

Sam Hocevar's avatar
Sam Hocevar committed
361
    /* Create thread and wait for its readiness. */
Laurent Aimar's avatar
Laurent Aimar committed
362
    if( vlc_thread_create( p_input, "input", Run,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
363
                           VLC_THREAD_PRIORITY_INPUT ) )
Michel Kaempf's avatar
Michel Kaempf committed
364
    {
365
        input_ChangeState( p_input, ERROR_S );
366
        msg_Err( p_input, "cannot create input thread" );
367 368
        vlc_object_detach( p_input );
        vlc_object_release( p_input );
369
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
370
    }
371

372
    return p_input;
Michel Kaempf's avatar
Michel Kaempf committed
373 374
}

375
/**
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
376
 * Initialize an input thread and run it. This thread will clean after itself,
377 378 379 380 381
 * 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 ?
382
 * \return an error code, VLC_SUCCESS on success
383
 */
384
int __input_Read( vlc_object_t *p_parent, input_item_t *p_item,
385
                   bool b_block )
386
{
387
    input_thread_t *p_input;
388

389
    p_input = Create( p_parent, p_item, NULL, false, NULL );
390
    if( !p_input )
391 392
        return VLC_EGENERIC;

393
    if( b_block )
394
    {
395
        RunAndDestroy( VLC_OBJECT(p_input) );
Clément Stenac's avatar
Clément Stenac committed
396
        return VLC_SUCCESS;
397
    }
398
    else
399
    {
400
        if( vlc_thread_create( p_input, "input", RunAndDestroy,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
401
                               VLC_THREAD_PRIORITY_INPUT ) )
402
        {
403
            input_ChangeState( p_input, ERROR_S );
404
            msg_Err( p_input, "cannot create input thread" );
405
            vlc_object_release( p_input );
Clément Stenac's avatar
Clément Stenac committed
406
            return VLC_EGENERIC;
407
        }
408
    }
409
    return VLC_SUCCESS;
410
}
411

412 413
/**
 * Initialize an input and initialize it to preparse the item
414
 * This function is blocking. It will only accept parsing regular files.
415 416 417 418 419
 *
 * \param p_parent a vlc_object_t
 * \param p_item an input item
 * \return VLC_SUCCESS or an error
 */
420
int input_Preparse( vlc_object_t *p_parent, input_item_t *p_item )
421
{
422
    input_thread_t *p_input;
423

424
    /* Allocate descriptor */
425
    p_input = Create( p_parent, p_item, NULL, true, NULL );
426 427 428
    if( !p_input )
        return VLC_EGENERIC;

429 430
    if( !Init( p_input ) )
        End( p_input );
431

432 433
    vlc_object_detach( p_input );
    vlc_object_release( p_input );
434 435 436 437

    return VLC_SUCCESS;
}

438 439 440 441 442
/**
 * Request a running input thread to stop and die
 *
 * \param the input thread to stop
 */
443
void input_StopThread( input_thread_t *p_input, bool b_abort )
444 445 446 447
{
    /* 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 */
448
    ObjectKillChildrens( p_input, VLC_OBJECT(p_input) );
Michel Kaempf's avatar
Michel Kaempf committed
449

450 451 452 453
    vlc_mutex_lock( &p_input->p->lock_control );
    p_input->p->b_abort |= b_abort;
    vlc_mutex_unlock( &p_input->p->lock_control );

Laurent Aimar's avatar
Laurent Aimar committed
454
    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
Sam Hocevar's avatar
 
Sam Hocevar committed
455 456
}

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
457
input_resource_t *input_DetachResource( input_thread_t *p_input )
458
{
459
    assert( p_input->b_dead );
460

461
    input_resource_SetInput( p_input->p->p_resource, NULL );
462

463
    input_resource_t *p_resource = input_resource_Detach( p_input->p->p_resource );
464
    p_input->p->p_sout = NULL;
465

466
    return p_resource;
467 468
}

469 470 471 472 473 474 475 476 477 478 479 480
/**
 * 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
481 482 483 484 485 486 487 488
/*****************************************************************************
 * ObjectKillChildrens
 *****************************************************************************/
static void ObjectKillChildrens( input_thread_t *p_input, vlc_object_t *p_obj )
{
    vlc_list_t *p_list;
    int i;

489
    /* FIXME ObjectKillChildrens seems a very bad idea in fact */
490 491
    i = vlc_internals( p_obj )->i_object_type;
    if( i == VLC_OBJECT_VOUT ||i == VLC_OBJECT_AOUT ||
492
        p_obj == VLC_OBJECT(p_input->p->p_sout) ||
493
        i == VLC_OBJECT_DECODER || i == VLC_OBJECT_PACKETIZER )
Laurent Aimar's avatar
Laurent Aimar committed
494 495 496 497 498 499 500 501 502 503
        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 );
}

504
/*****************************************************************************
Laurent Aimar's avatar
Laurent Aimar committed
505
 * Run: main thread loop
506 507
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
508
 *****************************************************************************/
509
static void *Run( vlc_object_t *p_this )
Michel Kaempf's avatar
Michel Kaempf committed
510
{
511
    input_thread_t *p_input = (input_thread_t *)p_this;
512
    const int canc = vlc_savecancel();
513

514
    if( Init( p_input ) )
515
        goto exit;
Michel Kaempf's avatar
Michel Kaempf committed
516

517 518 519 520
    MainLoop( p_input );

    /* Clean up */
    End( p_input );
521 522

exit:
523
    /* Tell we're dead */
524 525 526 527 528
    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 )
529
        input_SendEventAbort( p_input );
530
    input_SendEventDead( p_input );
531

532
    vlc_restorecancel( canc );
533
    return NULL;
534 535 536
}

/*****************************************************************************
537
 * RunAndDestroy: main thread loop
538 539 540
 * This is the "just forget me" thread that spawns the input processing chain,
 * reads the stream, cleans up and releases memory
 *****************************************************************************/
541
static void *RunAndDestroy( vlc_object_t *p_this )
542
{
543
    input_thread_t *p_input = (input_thread_t *)p_this;
544
    const int canc = vlc_savecancel();
545

546
    if( Init( p_input ) )
547
        goto exit;
548 549 550 551 552 553

    MainLoop( p_input );

    /* Clean up */
    End( p_input );

554
exit:
555
    /* Release memory */
556
    vlc_object_release( p_input );
557 558
    vlc_restorecancel( canc );
    return NULL;
559 560 561 562 563
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
564 565 566 567 568 569

/**
 * 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 )
570
{
571
    int i_ret;
572

573
    *pb_changed = false;
574

Laurent Aimar's avatar
Laurent Aimar committed
575
    if( ( p_input->p->i_stop > 0 && p_input->p->i_time >= p_input->p->i_stop ) ||
576 577 578
        ( 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
579
        i_ret = demux_Demux( p_input->p->input.p_demux );
580 581

    if( i_ret > 0 )
Sam Hocevar's avatar
 
Sam Hocevar committed
582
    {
583
        if( p_input->p->input.p_demux->info.i_update )
584
        {
585 586 587 588 589 590
            if( p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromDemux( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromDemux( p_input );
591
        }
592 593
        else if( p_input->p->input.p_access &&
                 p_input->p->input.p_access->info.i_update )
594
        {
595 596 597 598 599 600
            if( !p_input->p->input.b_title_demux )
            {
                i_ret = UpdateTitleSeekpointFromAccess( p_input );
                *pb_changed = true;
            }
            UpdateGenericFromAccess( p_input );
601 602
        }
    }
603

604 605
    if( i_ret == 0 )    /* EOF */
    {
Laurent Aimar's avatar
Laurent Aimar committed
606 607
        int i_repeat = var_GetInteger( p_input, "input-repeat" );
        if( i_repeat == 0 )
608
        {
609 610 611 612 613 614 615 616
            /* 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;
617

Laurent Aimar's avatar
Laurent Aimar committed
618 619
            msg_Dbg( p_input, "repeating the same input (%d)", i_repeat );
            if( i_repeat > 0 )
Laurent Aimar's avatar
Laurent Aimar committed
620
            {
Laurent Aimar's avatar
Laurent Aimar committed
621 622
                i_repeat--;
                var_SetInteger( p_input, "input-repeat", i_repeat );
Laurent Aimar's avatar
Laurent Aimar committed
623
            }
624

625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640
            /* 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 )
Laurent Aimar's avatar
Laurent Aimar committed
641
            {
642 643 644
                val.i_time = p_input->p->i_start;
                input_ControlPush( p_input, INPUT_CONTROL_SET_TIME,
                                   &val );
645
            }
646
            else
Laurent Aimar's avatar
Laurent Aimar committed
647
            {
648 649 650
                val.f_float = 0.0;
                input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION,
                                   &val );
Laurent Aimar's avatar
Laurent Aimar committed
651
            }
652

653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673
            /* */
            *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 )
{
674 675 676
    double f_position = 0.0;
    mtime_t i_time = 0;
    mtime_t i_length = 0;
677 678

    /* update input status variables */
679
    if( demux_Control( p_input->p->input.p_demux,
680 681
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;
682

683
    if( demux_Control( p_input->p->input.p_demux,
684 685
                       DEMUX_GET_TIME, &i_time ) )
        i_time = 0;
Laurent Aimar's avatar
Laurent Aimar committed
686
    p_input->p->i_time = i_time;
687 688

    if( demux_Control( p_input->p->input.p_demux,
689 690
                       DEMUX_GET_LENGTH, &i_length ) )
        i_length = 0;
691

692
    es_out_SetTimes( p_input->p->p_es_out, f_position, i_time, i_length );
693 694 695 696 697 698 699

    /* 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 );
700 701 702 703 704 705 706 707
}

/**
 * MainLoopStatistic
 * It updates the globals statics
 */
static void MainLoopStatistic( input_thread_t *p_input )
{
708
    stats_ComputeInputStats( p_input, p_input->p->p_item->p_stats );
709
    input_SendEventStatistics( p_input );
710 711 712 713 714 715 716 717 718
}

/**
 * MainLoop
 * The main input loop.
 */
static void MainLoop( input_thread_t *p_input )
{
    mtime_t i_start_mdate = mdate();
719 720
    mtime_t i_intf_update = 0;
    mtime_t i_statistic_update = 0;
721 722 723 724

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

725
    while( vlc_object_alive( p_input ) && !p_input->b_error )
726 727 728 729
    {
        bool b_force_update;
        int i_type;
        vlc_value_t val;
730
        mtime_t i_current;
731
        mtime_t i_deadline;
732
        mtime_t i_wakeup;
733
        bool b_paused;
734

735 736
        /* Demux data */
        b_force_update = false;
737
        i_wakeup = 0;
Laurent Aimar's avatar
Laurent Aimar committed
738
        /* FIXME if p_input->p->i_state == PAUSE_S the access/access_demux
739 740
         * 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
741
        b_paused = p_input->p->i_state == PAUSE_S &&
742
                   !es_out_GetBuffering( p_input->p->p_es_out );
743 744

        if( !b_paused )
745
        {
746 747 748
            if( !p_input->p->input.b_eof )
            {
                MainLoopDemux( p_input, &b_force_update, &i_start_mdate );
749

750 751 752 753 754 755 756 757 758 759 760
                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;
            }
761
        }
762 763

        /* */
764 765
        do {
            i_deadline = i_wakeup;
766
            if( b_paused )
767 768 769 770
                i_deadline = __MIN( i_intf_update, i_statistic_update );

            /* Handle control */
            ControlReduce( p_input );
771
            while( !ControlPop( p_input, &i_type, &val, i_deadline ) )
772
            {
773

774
                msg_Dbg( p_input, "control type=%d", i_type );
775

776 777 778
                if( Control( p_input, i_type, val ) )
                    b_force_update = true;
            }
779

780 781 782 783 784 785 786 787 788 789 790 791 792
            /* 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);
            }
793 794 795 796

            /* Check if i_wakeup is still valid */
            if( i_wakeup != 0 )
            {
797
                mtime_t i_new_wakeup = es_out_GetWakeup( p_input->p->p_es_out );
798 799 800
                if( !i_new_wakeup )
                    i_wakeup = 0;
            }
801
        } while( i_current < i_wakeup );
Laurent Aimar's avatar
Laurent Aimar committed
802
    }
803

804
    if( !p_input->b_error )
805
        input_ChangeState( p_input, END_S );
806 807
}

808
static void InitStatistics( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
809
{
810
    if( p_input->b_preparsing ) return;
811

812 813 814
    /* Prepare statistics */
#define INIT_COUNTER( c, type, compute ) p_input->p->counters.p_##c = \
 stats_CounterCreate( p_input, VLC_VAR_##type, STATS_##compute);
815
    if( libvlc_stats( p_input ) )
816 817 818 819 820 821
    {
        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 );
822 823
        INIT_COUNTER( demux_corrupted, INTEGER, COUNTER );
        INIT_COUNTER( demux_discontinuity, INTEGER, COUNTER );