input.c 21.1 KB
Newer Older
1
2
/*****************************************************************************
 * input.c: input thread
Michel Kaempf's avatar
Michel Kaempf committed
3
4
 * Read an MPEG2 stream, demultiplex and parse it before sending it to
 * decoders.
5
 *****************************************************************************
6
 * Copyright (C) 1998-2001 VideoLAN
Xavier Marchesini's avatar
   
Xavier Marchesini committed
7
 * $Id: input.c,v 1.184 2002/03/03 17:34:27 xav Exp $
8
 *
9
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
Christophe Massiot's avatar
Christophe Massiot committed
10
 *          Alexis Guillard <alexis.guillard@bt.com>
11
12
13
14
15
 *
 * 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.
16
 * 
17
18
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19
20
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
21
 *
22
23
24
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
25
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
26

27
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
28
 * Preamble
29
 *****************************************************************************/
30
31
32
33
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
Sam Hocevar's avatar
   
Sam Hocevar committed
34

Sam Hocevar's avatar
   
Sam Hocevar committed
35
36
#include <videolan/vlc.h>

37
#include <string.h>
Sam Hocevar's avatar
   
Sam Hocevar committed
38
39
#include <errno.h>

40
41
#ifdef HAVE_SYS_TIMES_H
#   include <sys/times.h>
42
#endif
43

Sam Hocevar's avatar
   
Sam Hocevar committed
44
#include "netutils.h"
45

Sam Hocevar's avatar
   
Sam Hocevar committed
46
#include "intf_playlist.h"
47

48
49
50
#include "stream_control.h"
#include "input_ext-intf.h"
#include "input_ext-dec.h"
51
#include "input_ext-plugins.h"
Michel Lespinasse's avatar
Yop,    
Michel Lespinasse committed
52

Sam Hocevar's avatar
   
Sam Hocevar committed
53
54
#include "interface.h"

55
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
56
 * Local prototypes
57
 *****************************************************************************/
Sam Hocevar's avatar
   
Sam Hocevar committed
58
static  int RunThread       ( input_thread_t *p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
59
60
static  int InitThread      ( input_thread_t *p_input );
static void ErrorThread     ( input_thread_t *p_input );
61
static void CloseThread     ( input_thread_t *p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
62
63
static void DestroyThread   ( input_thread_t *p_input );
static void EndThread       ( input_thread_t *p_input );
Michel Kaempf's avatar
Michel Kaempf committed
64

Sam Hocevar's avatar
   
Sam Hocevar committed
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*****************************************************************************
 * input_InitBank: initialize the input bank.
 *****************************************************************************/
void input_InitBank ( void )
{
    p_input_bank->i_count = 0;

    /* XXX: Workaround for old interface modules */
    p_input_bank->pp_input[0] = NULL;

    vlc_mutex_init( &p_input_bank->lock );
}

/*****************************************************************************
 * input_EndBank: empty the input bank.
 *****************************************************************************
 * This function ends all unused inputs and empties the bank in
 * case of success.
 *****************************************************************************/
void input_EndBank ( void )
{
Sam Hocevar's avatar
   
Sam Hocevar committed
86
87
    int i_input;

Sam Hocevar's avatar
   
Sam Hocevar committed
88
    /* Ask all remaining video outputs to die */
Sam Hocevar's avatar
   
Sam Hocevar committed
89
    for( i_input = 0; i_input < p_input_bank->i_count; i_input++ )
Sam Hocevar's avatar
   
Sam Hocevar committed
90
    {
Sam Hocevar's avatar
   
Sam Hocevar committed
91
92
        input_StopThread(
                p_input_bank->pp_input[ i_input ], NULL );
Sam Hocevar's avatar
   
Sam Hocevar committed
93
        input_DestroyThread(
Sam Hocevar's avatar
   
Sam Hocevar committed
94
                p_input_bank->pp_input[ i_input ] );
Sam Hocevar's avatar
   
Sam Hocevar committed
95
96
97
98
99
    }

    vlc_mutex_destroy( &p_input_bank->lock );
}

100
/*****************************************************************************
101
 * input_CreateThread: creates a new input thread
102
 *****************************************************************************
103
104
105
106
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
 * If pi_status is NULL, then the function will block until the thread is ready.
 * If not, it will be updated using one of the THREAD_* constants.
107
 *****************************************************************************/
Sam Hocevar's avatar
   
Sam Hocevar committed
108
input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
Michel Kaempf's avatar
Michel Kaempf committed
109
{
110
111
    input_thread_t *    p_input;                        /* thread descriptor */

112
113
114
    /* Allocate descriptor */
    p_input = (input_thread_t *)malloc( sizeof(input_thread_t) );
    if( p_input == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
115
    {
Sam Hocevar's avatar
   
Sam Hocevar committed
116
117
        intf_ErrMsg( "input error: can't allocate input thread (%s)",
                     strerror(errno) );
Michel Kaempf's avatar
Michel Kaempf committed
118
119
        return( NULL );
    }
120
121

    /* Initialize thread properties */
Sam Hocevar's avatar
   
Sam Hocevar committed
122
123
124
    p_input->b_die      = 0;
    p_input->b_error    = 0;
    p_input->b_eof      = 0;
Sam Hocevar's avatar
   
Sam Hocevar committed
125
126

    /* Set target */
Christophe Massiot's avatar
Christophe Massiot committed
127
    p_input->psz_source = strdup( p_item->psz_name );
Sam Hocevar's avatar
   
Sam Hocevar committed
128

Sam Hocevar's avatar
   
Sam Hocevar committed
129
130
    /* Set status */
    p_input->i_status   = THREAD_CREATE;
Stéphane Borel's avatar
   
Stéphane Borel committed
131
132

    /* Demux */
Stéphane Borel's avatar
   
Stéphane Borel committed
133
    p_input->p_demux_module = NULL;
Stéphane Borel's avatar
   
Stéphane Borel committed
134
135
136
137
138
139
    p_input->pf_init    = NULL;
    p_input->pf_end     = NULL;
    p_input->pf_demux   = NULL;
    p_input->pf_rewind  = NULL;

    /* Access */
Stéphane Borel's avatar
   
Stéphane Borel committed
140
    p_input->p_access_module = NULL;
Stéphane Borel's avatar
   
Stéphane Borel committed
141
142
143
144
145
146
    p_input->pf_open        = NULL;
    p_input->pf_close       = NULL;
    p_input->pf_read        = NULL;
    p_input->pf_seek        = NULL;
    p_input->pf_set_area    = NULL;
    p_input->pf_set_program = NULL;
147
    
Sam Hocevar's avatar
   
Sam Hocevar committed
148
149
150
    p_input->i_bufsize = 0;
    p_input->i_mtu = 0;

151
152
153
154
155
156
157
158
159
    /* Initialize statistics */
    p_input->c_loops                    = 0;
    p_input->stream.c_packets_read      = 0;
    p_input->stream.c_packets_trashed   = 0;

    /* Set locks. */
    vlc_mutex_init( &p_input->stream.stream_lock );
    vlc_cond_init( &p_input->stream.stream_wait );
    vlc_mutex_init( &p_input->stream.control.control_lock );
Michel Kaempf's avatar
Michel Kaempf committed
160

161
    /* Initialize stream description */
Stéphane Borel's avatar
   
Stéphane Borel committed
162
    p_input->stream.b_changed = 0;
163
164
    p_input->stream.i_es_number = 0;
    p_input->stream.i_selected_es_number = 0;
165
    p_input->stream.i_pgrm_number = 0;
166
    p_input->stream.i_new_status = p_input->stream.i_new_rate = 0;
167
    p_input->stream.b_new_mute = MUTE_NO_CHANGE;
Christophe Massiot's avatar
Christophe Massiot committed
168
    p_input->stream.i_mux_rate = 0;
Michel Kaempf's avatar
Michel Kaempf committed
169

Sam Hocevar's avatar
   
Sam Hocevar committed
170
171
172
    /* no stream, no program, no area, no es */
    p_input->stream.p_new_program = NULL;

Stéphane Borel's avatar
   
Stéphane Borel committed
173
174
    p_input->stream.i_area_nb = 0;
    p_input->stream.pp_areas = NULL;
175
    p_input->stream.p_selected_area = NULL;
176
    p_input->stream.p_new_area = NULL;
Sam Hocevar's avatar
   
Sam Hocevar committed
177

Sam Hocevar's avatar
   
Sam Hocevar committed
178
179
180
181
    p_input->stream.pp_selected_es = NULL;
    p_input->stream.p_removed_es = NULL;
    p_input->stream.p_newly_selected_es = NULL;

Sam Hocevar's avatar
   
Sam Hocevar committed
182
    /* By default there is one area in a stream */
Stéphane Borel's avatar
   
Stéphane Borel committed
183
    input_AddArea( p_input );
184
    p_input->stream.p_selected_area = p_input->stream.pp_areas[0];
Stéphane Borel's avatar
   
Stéphane Borel committed
185

186
187
188
189
    /* Initialize stream control properties. */
    p_input->stream.control.i_status = PLAYING_S;
    p_input->stream.control.i_rate = DEFAULT_RATE;
    p_input->stream.control.b_mute = 0;
gbazin's avatar
   
gbazin committed
190
191
192
    p_input->stream.control.b_grayscale = config_GetIntVariable(
			                      VOUT_GRAYSCALE_VAR );
    p_input->stream.control.i_smp = config_GetIntVariable( VDEC_SMP_VAR );
Michel Kaempf's avatar
Michel Kaempf committed
193

Christophe Massiot's avatar
Christophe Massiot committed
194
    intf_WarnMsg( 1, "input: playlist item `%s'", p_input->psz_source );
Sam Hocevar's avatar
   
Sam Hocevar committed
195

Sam Hocevar's avatar
   
Sam Hocevar committed
196
    /* Create thread. */
Sam Hocevar's avatar
   
Sam Hocevar committed
197
198
    if( vlc_thread_create( &p_input->thread_id, "input",
                           (vlc_thread_func_t)RunThread, (void *) p_input ) )
Michel Kaempf's avatar
Michel Kaempf committed
199
    {
Sam Hocevar's avatar
   
Sam Hocevar committed
200
201
        intf_ErrMsg( "input error: can't create input thread (%s)",
                     strerror(errno) );
Michel Kaempf's avatar
Michel Kaempf committed
202
203
204
        free( p_input );
        return( NULL );
    }
205

Sam Hocevar's avatar
   
Sam Hocevar committed
206
#if 0
207
208
209
210
    /* If status is NULL, wait until the thread is created */
    if( pi_status == NULL )
    {
        do
211
        {
212
            msleep( THREAD_SLEEP );
213
        } while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
Sam Hocevar's avatar
   
Sam Hocevar committed
214
                && (i_status != THREAD_FATAL) );
215
    }
Sam Hocevar's avatar
   
Sam Hocevar committed
216
217
#endif

Michel Kaempf's avatar
Michel Kaempf committed
218
219
220
    return( p_input );
}

221
/*****************************************************************************
Sam Hocevar's avatar
   
Sam Hocevar committed
222
 * input_StopThread: mark an input thread as zombie
223
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
224
 * This function should not return until the thread is effectively cancelled.
225
 *****************************************************************************/
Sam Hocevar's avatar
   
Sam Hocevar committed
226
void input_StopThread( input_thread_t *p_input, int *pi_status )
Michel Kaempf's avatar
Michel Kaempf committed
227
{
Sam Hocevar's avatar
   
Sam Hocevar committed
228
229
    /* Make the thread exit from a possible vlc_cond_wait() */
    vlc_mutex_lock( &p_input->stream.stream_lock );
230

231
232
    /* Request thread destruction */
    p_input->b_die = 1;
Michel Kaempf's avatar
Michel Kaempf committed
233

234
235
236
    vlc_cond_signal( &p_input->stream.stream_wait );
    vlc_mutex_unlock( &p_input->stream.stream_lock );

237
    /* If status is NULL, wait until thread has been destroyed */
Sam Hocevar's avatar
   
Sam Hocevar committed
238
#if 0
239
240
241
242
243
    if( pi_status == NULL )
    {
        do
        {
            msleep( THREAD_SLEEP );
244
245
        } while ( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
                  && (i_status != THREAD_FATAL) );
246
    }
Sam Hocevar's avatar
   
Sam Hocevar committed
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
#endif
}

/*****************************************************************************
 * input_DestroyThread: mark an input thread as zombie
 *****************************************************************************
 * This function should not return until the thread is effectively cancelled.
 *****************************************************************************/
void input_DestroyThread( input_thread_t *p_input )
{
    /* Join the thread */
    vlc_thread_join( p_input->thread_id );

    /* Destroy Mutex locks */
    vlc_mutex_destroy( &p_input->stream.control.control_lock );
Sam Hocevar's avatar
   
Sam Hocevar committed
262
    vlc_cond_destroy( &p_input->stream.stream_wait );
Sam Hocevar's avatar
   
Sam Hocevar committed
263
264
265
266
    vlc_mutex_destroy( &p_input->stream.stream_lock );
    
    /* Free input structure */
    free( p_input );
Michel Kaempf's avatar
Michel Kaempf committed
267
268
}

269
/*****************************************************************************
270
 * RunThread: main thread loop
271
 *****************************************************************************
272
 * Thread in charge of processing the network packets and demultiplexing.
273
 *****************************************************************************/
Sam Hocevar's avatar
   
Sam Hocevar committed
274
static int RunThread( input_thread_t *p_input )
Michel Kaempf's avatar
Michel Kaempf committed
275
{
Sam Hocevar's avatar
   
Sam Hocevar committed
276
277
278
    if( InitThread( p_input ) )
    {
        /* If we failed, wait before we are killed, and exit */
Sam Hocevar's avatar
   
Sam Hocevar committed
279
        p_input->i_status = THREAD_ERROR;
Sam Hocevar's avatar
   
Sam Hocevar committed
280
281
282
        p_input->b_error = 1;
        ErrorThread( p_input );
        DestroyThread( p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
283
        return 0;
Sam Hocevar's avatar
   
Sam Hocevar committed
284
    }
Michel Kaempf's avatar
Michel Kaempf committed
285

Sam Hocevar's avatar
   
Sam Hocevar committed
286
287
    p_input->i_status = THREAD_READY;

288
    /* initialization is complete */
289
290
291
292
    vlc_mutex_lock( &p_input->stream.stream_lock );
    p_input->stream.b_changed = 1;
    vlc_mutex_unlock( &p_input->stream.stream_lock );

Sam Hocevar's avatar
   
Sam Hocevar committed
293
294
    while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
    {
Christophe Massiot's avatar
Christophe Massiot committed
295
        int i, i_count;
296

Sam Hocevar's avatar
   
Sam Hocevar committed
297
        p_input->c_loops++;
Sam Hocevar's avatar
   
Sam Hocevar committed
298

299
        vlc_mutex_lock( &p_input->stream.stream_lock );
300

301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
        if( p_input->stream.p_new_program )
        {
            if( p_input->pf_set_program != NULL )
            {

                p_input->pf_set_program( p_input, 
                        p_input->stream.p_new_program );

                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
                    pgrm_descriptor_t * p_pgrm
                                            = p_input->stream.pp_programs[i];
                    /* Escape all decoders for the stream discontinuity they
                     * will encounter. */
                    input_EscapeDiscontinuity( p_input, p_pgrm );

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
            }
            p_input->stream.p_new_program = NULL;
        }
        
324
325
        if( p_input->stream.p_new_area )
        {
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
            if( p_input->stream.b_seekable && p_input->pf_set_area != NULL )
            {

                p_input->pf_set_area( p_input, p_input->stream.p_new_area );

                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
                    pgrm_descriptor_t * p_pgrm
                                            = p_input->stream.pp_programs[i];
                    /* Escape all decoders for the stream discontinuity they
                     * will encounter. */
                    input_EscapeDiscontinuity( p_input, p_pgrm );

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
            }
343
344
345
            p_input->stream.p_new_area = NULL;
        }

346
        if( p_input->stream.p_selected_area->i_seek != NO_SEEK )
Sam Hocevar's avatar
   
Sam Hocevar committed
347
        {
348
349
            if( p_input->stream.b_seekable && p_input->pf_seek != NULL )
            {
Christophe Massiot's avatar
Christophe Massiot committed
350
351
352
353
                off_t i_new_pos = p_input->stream.p_selected_area->i_seek;
                vlc_mutex_unlock( &p_input->stream.stream_lock );
                p_input->pf_seek( p_input, i_new_pos );
                vlc_mutex_lock( &p_input->stream.stream_lock );
354
355
356
357
358
359
360
361
362
363
364
365

                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
                    pgrm_descriptor_t * p_pgrm
                                            = p_input->stream.pp_programs[i];
                    /* Escape all decoders for the stream discontinuity they
                     * will encounter. */
                    input_EscapeDiscontinuity( p_input, p_pgrm );

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
Christophe Massiot's avatar
Christophe Massiot committed
366
367
368

                /* Reinitialize buffer manager. */
                input_AccessReinit( p_input );
369
            }
370
            p_input->stream.p_selected_area->i_seek = NO_SEEK;
Sam Hocevar's avatar
   
Sam Hocevar committed
371
        }
372

373
374
375
376
377
378
379
380
381
382
383
384
        if( p_input->stream.p_removed_es )
        {
            input_UnselectES( p_input, p_input->stream.p_removed_es );
            p_input->stream.p_removed_es = NULL;
        }

        if( p_input->stream.p_newly_selected_es )
        {
            input_SelectES( p_input, p_input->stream.p_newly_selected_es );
            p_input->stream.p_newly_selected_es = NULL;
        }

385
386
387
388
389
390
391
392
393
394
395
396
397
398
        if( p_input->stream.b_new_mute != MUTE_NO_CHANGE )
        {
            if( p_input->stream.b_new_mute )
            {
                input_EscapeAudioDiscontinuity( p_input );
            }

            vlc_mutex_lock( &p_input->stream.control.control_lock );
            p_input->stream.control.b_mute = p_input->stream.b_new_mute;
            vlc_mutex_unlock( &p_input->stream.control.control_lock );

            p_input->stream.b_new_mute = MUTE_NO_CHANGE;
        }

399
        vlc_mutex_unlock( &p_input->stream.stream_lock );
Sam Hocevar's avatar
   
Sam Hocevar committed
400

Christophe Massiot's avatar
Christophe Massiot committed
401
402
        /* Read and demultiplex some data. */
        i_count = p_input->pf_demux( p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
403

404
        if( i_count == 0 && p_input->stream.b_seekable )
Sam Hocevar's avatar
   
Sam Hocevar committed
405
        {
406
407
408
409
410
411
412
413
            /* End of file - we do not set b_die because only the
             * interface is allowed to do so. */
            intf_WarnMsg( 3, "input: EOF reached" );
            p_input->b_eof = 1;
        }
        else if( i_count < 0 )
        {
            p_input->b_error = 1;
414
415
416
        }
    }

Sam Hocevar's avatar
   
Sam Hocevar committed
417
    if( p_input->b_error || p_input->b_eof )
418
419
420
    {
        ErrorThread( p_input );
    }
421

422
    EndThread( p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
423
424

    DestroyThread( p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
425
426

    return 0;
427
428
}

429
/*****************************************************************************
Sam Hocevar's avatar
   
Sam Hocevar committed
430
 * InitThread: init the input Thread
431
 *****************************************************************************/
Sam Hocevar's avatar
   
Sam Hocevar committed
432
static int InitThread( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
433
{
Christophe Massiot's avatar
Christophe Massiot committed
434
435
    /* Parse source string. Syntax : [[<access>][/<demux>]:][<source>] */
    char * psz_parser = p_input->psz_source;
Xavier Marchesini's avatar
   
Xavier Marchesini committed
436
437
438
439
#ifdef WIN32
    struct stat		stat_info ;
    int i_Win32_Access = 0 ;	
#endif
Christophe Massiot's avatar
Christophe Massiot committed
440
441
442
443
444
    /* Skip the plug-in names */
    while( *psz_parser && *psz_parser != ':' )
    {
        psz_parser++;
    }
Sam Hocevar's avatar
   
Sam Hocevar committed
445

Christophe Massiot's avatar
Christophe Massiot committed
446
    if( !*psz_parser )
447
    {
Christophe Massiot's avatar
Christophe Massiot committed
448
449
        p_input->psz_access = p_input->psz_demux = NULL;
        p_input->psz_name = p_input->psz_source;
Michel Kaempf's avatar
Michel Kaempf committed
450
    }
Christophe Massiot's avatar
Christophe Massiot committed
451
452
    else
    {
Xavier Marchesini's avatar
   
Xavier Marchesini committed
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
#ifdef WIN32
	if ( (	psz_parser-p_input->psz_source == 1) && 
	     (  stat( p_input->psz_source, &stat_info ) != -1 ) )
	{
	    intf_WarnMsg (2, "Okay, found a valid device in p_input->psz_source") ;
	    psz_parser = p_input->psz_source ;
	    p_input->psz_access = NULL ;
	    p_input->psz_demux = NULL ;
	    i_Win32_Access = 1 ;
	}
	else
	{
	    *psz_parser++ = '\0';
	}
#else
Christophe Massiot's avatar
Christophe Massiot committed
468
        *psz_parser++ = '\0';
Xavier Marchesini's avatar
   
Xavier Marchesini committed
469
#endif
470

Christophe Massiot's avatar
Christophe Massiot committed
471
        p_input->psz_name = psz_parser;
Sam Hocevar's avatar
   
Sam Hocevar committed
472

Christophe Massiot's avatar
Christophe Massiot committed
473
474
        /* Come back to parse the access and demux plug-ins */
        psz_parser = p_input->psz_source;
Xavier Marchesini's avatar
   
Xavier Marchesini committed
475
476
477
478
479
#ifdef WIN32
        if( (!*psz_parser) || (i_Win32_Access == 1))
#else
	if (!*psz_parser)
#endif
Christophe Massiot's avatar
Christophe Massiot committed
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
        {
            /* No access */
            p_input->psz_access = NULL;
        }
        else if( *psz_parser == '/' )
        {
            /* No access */
            p_input->psz_access = NULL;
            psz_parser++;
        }
        else
        {
            p_input->psz_access = psz_parser;

            while( *psz_parser && *psz_parser != '/' )
            {
                psz_parser++;
            }

            if( *psz_parser == '/' )
            {
                *psz_parser++ = '\0';
            }
        }
Xavier Marchesini's avatar
   
Xavier Marchesini committed
504
#ifndef WIN32
Christophe Massiot's avatar
Christophe Massiot committed
505
        if( !*psz_parser )
Xavier Marchesini's avatar
   
Xavier Marchesini committed
506
507
508
#else
        if( (!*psz_parser) || (i_Win32_Access == 1))
#endif		
Christophe Massiot's avatar
Christophe Massiot committed
509
510
511
512
513
514
515
516
        {
            /* No demux */
            p_input->psz_demux = NULL;
        }
        else
        {
            p_input->psz_demux = psz_parser;
        }
Sam Hocevar's avatar
   
Sam Hocevar committed
517
    }
Christophe Massiot's avatar
Christophe Massiot committed
518
519
520
521
522
523

    intf_WarnMsg( 2, "input: access=%s demux=%s name=%s",
                  p_input->psz_access, p_input->psz_demux,
                  p_input->psz_name );

    if( input_AccessInit( p_input ) == -1 )
524
    {
Christophe Massiot's avatar
Christophe Massiot committed
525
        return( -1 );
526
    }
Christophe Massiot's avatar
Christophe Massiot committed
527
528
529
530
531
532
533

    /* Find and open appropriate access plug-in. */
    p_input->p_access_module = module_Need( MODULE_CAPABILITY_ACCESS,
                                 p_input->psz_access,
                                 (void *)p_input );

    if( p_input->p_access_module == NULL )
534
    {
Christophe Massiot's avatar
Christophe Massiot committed
535
536
537
538
        intf_ErrMsg( "input error: no suitable access plug-in for `%s/%s:%s'",
                     p_input->psz_access, p_input->psz_demux,
                     p_input->psz_name );
        return( -1 );
539
    }
Christophe Massiot's avatar
Christophe Massiot committed
540
541
542
543
544
545
546
547
548
549
550
551

#define f p_input->p_access_module->p_functions->access.functions.access
    p_input->pf_open          = f.pf_open;
    p_input->pf_close         = f.pf_close;
    p_input->pf_read          = f.pf_read;
    p_input->pf_set_area      = f.pf_set_area;
    p_input->pf_set_program   = f.pf_set_program;
    p_input->pf_seek          = f.pf_seek;
#undef f

    /* Waiting for stream. */
    if( p_input->i_mtu )
Christophe Massiot's avatar
Christophe Massiot committed
552
    {
Christophe Massiot's avatar
Christophe Massiot committed
553
        p_input->i_bufsize = p_input->i_mtu;
Christophe Massiot's avatar
Christophe Massiot committed
554
    }
555
556
    else
    {
Christophe Massiot's avatar
Christophe Massiot committed
557
        p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
558
    }
559

Sam Hocevar's avatar
   
Sam Hocevar committed
560
    if( p_input->p_current_data == NULL && p_input->pf_read != NULL )
561
    {
Christophe Massiot's avatar
Christophe Massiot committed
562
563
564
565
566
567
568
569
        while( !input_FillBuffer( p_input ) )
        {
            if( p_input->b_die || p_input->b_error )
            {
                module_Unneed( p_input->p_access_module );
                return( -1 );
            }
        }
570
    }
Sam Hocevar's avatar
   
Sam Hocevar committed
571

Christophe Massiot's avatar
Christophe Massiot committed
572
573
574
575
    /* Find and open appropriate demux plug-in. */
    p_input->p_demux_module = module_Need( MODULE_CAPABILITY_DEMUX,
                                 p_input->psz_demux,
                                 (void *)p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
576

Christophe Massiot's avatar
Christophe Massiot committed
577
    if( p_input->p_demux_module == NULL )
578
    {
Christophe Massiot's avatar
Christophe Massiot committed
579
580
581
582
        intf_ErrMsg( "input error: no suitable demux plug-in for `%s/%s:%s'",
                     p_input->psz_access, p_input->psz_demux,
                     p_input->psz_name );
        module_Unneed( p_input->p_access_module );
583
584
585
        return( -1 );
    }

Christophe Massiot's avatar
Christophe Massiot committed
586
587
588
589
590
591
592
#define f p_input->p_demux_module->p_functions->demux.functions.demux
    p_input->pf_init          = f.pf_init;
    p_input->pf_end           = f.pf_end;
    p_input->pf_demux         = f.pf_demux;
    p_input->pf_rewind        = f.pf_rewind;
#undef f

Sam Hocevar's avatar
   
Sam Hocevar committed
593
    return( 0 );
Michel Kaempf's avatar
Michel Kaempf committed
594
595
}

596
/*****************************************************************************
597
 * ErrorThread: RunThread() error loop
598
 *****************************************************************************
599
 * This function is called when an error occured during thread main's loop.
600
 *****************************************************************************/
601
static void ErrorThread( input_thread_t *p_input )
Michel Kaempf's avatar
Michel Kaempf committed
602
{
603
    while( !p_input->b_die )
Michel Kaempf's avatar
Michel Kaempf committed
604
    {
605
606
        /* Sleep a while */
        msleep( INPUT_IDLE_SLEEP );
Michel Kaempf's avatar
Michel Kaempf committed
607
608
609
    }
}

610
/*****************************************************************************
611
 * EndThread: end the input thread
612
 *****************************************************************************/
613
static void EndThread( input_thread_t * p_input )
614
{
615
    /* Store status */
Sam Hocevar's avatar
   
Sam Hocevar committed
616
    p_input->i_status = THREAD_END;
Sam Hocevar's avatar
Sam Hocevar committed
617

618
    if( p_main->b_stats )
Sam Hocevar's avatar
   
Sam Hocevar committed
619
    {
620
#ifdef HAVE_SYS_TIMES_H
621
622
        /* Display statistics */
        struct tms  cpu_usage;
Sam Hocevar's avatar
   
Sam Hocevar committed
623
624
        times( &cpu_usage );

625
626
627
        intf_StatMsg( "input stats: %d loops consuming user: %d, system: %d",
                      p_input->c_loops,
                      cpu_usage.tms_utime, cpu_usage.tms_stime );
628
629
630
#else
        intf_StatMsg( "input stats: %d loops", p_input->c_loops );
#endif
631
632

        input_DumpStream( p_input );
Sam Hocevar's avatar
   
Sam Hocevar committed
633
634
635
636
637
638
639
    }

    /* Free all ES and destroy all decoder threads */
    input_EndStream( p_input );

    /* Free demultiplexer's data */
    p_input->pf_end( p_input );
Christophe Massiot's avatar
Christophe Massiot committed
640
    module_Unneed( p_input->p_demux_module );
Sam Hocevar's avatar
   
Sam Hocevar committed
641

Christophe Massiot's avatar
Christophe Massiot committed
642
    /* Close the access plug-in */
Sam Hocevar's avatar
   
Sam Hocevar committed
643
644
645
646
647
648
649
650
    CloseThread( p_input );
}

/*****************************************************************************
 * CloseThread: close the target
 *****************************************************************************/
static void CloseThread( input_thread_t * p_input )
{
Christophe Massiot's avatar
Christophe Massiot committed
651
652
    p_input->pf_close( p_input );
    module_Unneed( p_input->p_access_module );
Sam Hocevar's avatar
   
Sam Hocevar committed
653

Christophe Massiot's avatar
Christophe Massiot committed
654
655
656
    input_AccessEnd( p_input );

    free( p_input->psz_source );
Sam Hocevar's avatar
   
Sam Hocevar committed
657
658
659
660
661
662
663
}

/*****************************************************************************
 * DestroyThread: destroy the input thread
 *****************************************************************************/
static void DestroyThread( input_thread_t * p_input )
{
664
    /* Update status */
Sam Hocevar's avatar
   
Sam Hocevar committed
665
    p_input->i_status = THREAD_OVER;
Sam Hocevar's avatar
Sam Hocevar committed
666
}
667