input.c 29.7 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) 1998-2002 VideoLAN
7
 * $Id: input.c,v 1.237 2003/09/07 22:51:11 fenrir Exp $
8
 *
9
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
10 11 12 13 14
 *
 * 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.
15
 *
16 17
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 19
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
20
 *
21 22 23
 * 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.
24
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
25

26
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
27
 * Preamble
28
 *****************************************************************************/
29
#include <stdlib.h>
Sam Hocevar's avatar
 
Sam Hocevar committed
30

31
#include <vlc/vlc.h>
Sam Hocevar's avatar
 
Sam Hocevar committed
32

33
#include <string.h>
Sam Hocevar's avatar
 
Sam Hocevar committed
34

35 36
#ifdef HAVE_SYS_TIMES_H
#   include <sys/times.h>
37
#endif
38

39
#include "vlc_playlist.h"
40

41 42 43
#include "stream_control.h"
#include "input_ext-intf.h"
#include "input_ext-dec.h"
44
#include "input_ext-plugins.h"
Michel Lespinasse's avatar
Yop,  
Michel Lespinasse committed
45

46
#include "stream_output.h"
47
#include <vlc/vout.h>
48

49
#include "vlc_interface.h"
50
#include "ninput.h"
Sam Hocevar's avatar
 
Sam Hocevar committed
51

52
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
53
 * Local prototypes
54
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
55
static  int RunThread       ( input_thread_t *p_input );
Sam Hocevar's avatar
 
Sam Hocevar committed
56 57 58
static  int InitThread      ( input_thread_t *p_input );
static void ErrorThread     ( input_thread_t *p_input );
static void EndThread       ( input_thread_t *p_input );
Michel Kaempf's avatar
Michel Kaempf committed
59

Gildas Bazin's avatar
 
Gildas Bazin committed
60 61
static void ParseOption     ( input_thread_t *p_input,
                              const char *psz_option );
62 63 64 65 66 67 68 69 70 71 72
/*****************************************************************************
 * Callbacks
 *****************************************************************************/
static int PositionCallback( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data );
static int TimeCallback    ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data );
static int StateCallback   ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data );
static int RateCallback    ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data );
Gildas Bazin's avatar
 
Gildas Bazin committed
73

74
/*****************************************************************************
75
 * input_CreateThread: creates a new input thread
76
 *****************************************************************************
77 78
 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
79
 *****************************************************************************/
80
input_thread_t *__input_CreateThread( vlc_object_t *p_parent,
81
                                      playlist_item_t *p_item )
Michel Kaempf's avatar
Michel Kaempf committed
82
{
83
    input_thread_t *    p_input;                        /* thread descriptor */
84
    input_info_category_t * p_info;
85
    vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
86
    int i;
87

88
    /* Allocate descriptor */
89
    p_input = vlc_object_create( p_parent, VLC_OBJECT_INPUT );
90
    if( p_input == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
91
    {
92
        msg_Err( p_parent, "out of memory" );
93
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
94
    }
95

Gildas Bazin's avatar
 
Gildas Bazin committed
96 97 98 99 100 101
    /* Parse input options */
    for( i = 0; i < p_item->i_options; i++ )
    {
        ParseOption( p_input, p_item->ppsz_options[i] );
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
102 103 104 105 106 107 108 109 110
    /* Create a few object variables we'll need later on */
    var_Create( p_input, "video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "audio-channel", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
    var_Create( p_input, "spu-channel", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );

    var_Create( p_input, "sout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
    var_Create( p_input, "sout-keep",  VLC_VAR_BOOL | VLC_VAR_DOINHERIT );

    /* play status */

    /* position variable */
    var_Create( p_input, "position",  VLC_VAR_FLOAT );  /* position 0.0 -> 1.0 */
    val.f_float = 0.0;
    var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
    var_AddCallback( p_input, "position", PositionCallback, NULL );

    /* time variable */
    var_Create( p_input, "time",  VLC_VAR_TIME );
    val.i_time = 0;
    var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
    var_AddCallback( p_input, "time", TimeCallback, NULL );

    /* length variable */
    var_Create( p_input, "length",  VLC_VAR_TIME );
    val.i_time = 0;
    var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );

    /* rate variable */
    var_Create( p_input, "rate", VLC_VAR_INTEGER );
    var_Create( p_input, "rate-slower", VLC_VAR_VOID );
    var_Create( p_input, "rate-faster", VLC_VAR_VOID );
    val.i_int = DEFAULT_RATE;
    var_Change( p_input, "rate", VLC_VAR_SETVALUE, &val, NULL );
    var_AddCallback( p_input, "rate", RateCallback, NULL );
    var_AddCallback( p_input, "rate-slower", RateCallback, NULL );
    var_AddCallback( p_input, "rate-faster", RateCallback, NULL );

    /* state variable */
    var_Create( p_input, "state", VLC_VAR_INTEGER );
    val.i_int = INIT_S;
    var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
    var_AddCallback( p_input, "state", StateCallback, NULL );

Gildas Bazin's avatar
 
Gildas Bazin committed
148

149
    /* Initialize thread properties */
Sam Hocevar's avatar
 
Sam Hocevar committed
150
    p_input->b_eof      = 0;
Sam Hocevar's avatar
 
Sam Hocevar committed
151 152

    /* Set target */
153
    p_input->psz_source = strdup( p_item->psz_uri );
Sam Hocevar's avatar
 
Sam Hocevar committed
154

Stéphane Borel's avatar
 
Stéphane Borel committed
155
    /* Demux */
156 157 158 159
    p_input->p_demux   = NULL;
    p_input->pf_demux  = NULL;
    p_input->pf_rewind = NULL;
    p_input->pf_demux_control = NULL;
Stéphane Borel's avatar
 
Stéphane Borel committed
160 161

    /* Access */
162
    p_input->p_access = NULL;
163

Sam Hocevar's avatar
 
Sam Hocevar committed
164 165
    p_input->i_bufsize = 0;
    p_input->i_mtu = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
166
    p_input->i_pts_delay = DEFAULT_PTS_DELAY;
Sam Hocevar's avatar
 
Sam Hocevar committed
167

168 169 170 171 172 173
    /* Initialize statistics */
    p_input->c_loops                    = 0;
    p_input->stream.c_packets_read      = 0;
    p_input->stream.c_packets_trashed   = 0;

    /* Set locks. */
174
    vlc_mutex_init( p_input, &p_input->stream.stream_lock );
175
    vlc_cond_init( p_input, &p_input->stream.stream_wait );
176
    vlc_mutex_init( p_input, &p_input->stream.control.control_lock );
Michel Kaempf's avatar
Michel Kaempf committed
177

178
    /* Initialize stream description */
Stéphane Borel's avatar
 
Stéphane Borel committed
179
    p_input->stream.b_changed = 0;
180 181
    p_input->stream.i_es_number = 0;
    p_input->stream.i_selected_es_number = 0;
182
    p_input->stream.i_pgrm_number = 0;
183
    p_input->stream.i_new_status = p_input->stream.i_new_rate = 0;
184
    p_input->stream.b_new_mute = MUTE_NO_CHANGE;
Christophe Massiot's avatar
Christophe Massiot committed
185
    p_input->stream.i_mux_rate = 0;
186
    p_input->stream.b_seekable = 0;
187
    p_input->stream.p_sout = NULL;
Michel Kaempf's avatar
Michel Kaempf committed
188

Sam Hocevar's avatar
 
Sam Hocevar committed
189 190 191
    /* no stream, no program, no area, no es */
    p_input->stream.p_new_program = NULL;

Stéphane Borel's avatar
 
Stéphane Borel committed
192 193
    p_input->stream.i_area_nb = 0;
    p_input->stream.pp_areas = NULL;
194
    p_input->stream.p_selected_area = NULL;
195
    p_input->stream.p_new_area = NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
196

Sam Hocevar's avatar
 
Sam Hocevar committed
197 198 199 200
    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
201
    /* By default there is one area in a stream */
Gildas Bazin's avatar
 
Gildas Bazin committed
202
    input_AddArea( p_input, 0, 1 );
203
    p_input->stream.p_selected_area = p_input->stream.pp_areas[0];
Stéphane Borel's avatar
 
Stéphane Borel committed
204

205
    /* Initialize stream control properties. */
206
    p_input->stream.control.i_status = INIT_S;
207 208
    p_input->stream.control.i_rate = DEFAULT_RATE;
    p_input->stream.control.b_mute = 0;
209 210
    p_input->stream.control.b_grayscale = config_GetInt( p_input, "grayscale" );

211 212 213 214 215 216 217 218 219 220 221
    /* Initialize input info */
    p_input->stream.p_info = malloc( sizeof( input_info_category_t ) );
    if( !p_input->stream.p_info )
    {
        msg_Err( p_input, "No memory!" );
        return NULL;
    }
    p_input->stream.p_info->psz_name = strdup("General") ;
    p_input->stream.p_info->p_info = NULL;
    p_input->stream.p_info->p_next = NULL;

222
    msg_Info( p_input, "playlist item `%s'", p_input->psz_source );
Michel Kaempf's avatar
Michel Kaempf committed
223

224 225
    p_info = input_InfoCategory( p_input, _("General") );
    input_AddInfo( p_info, _("Playlist Item"), p_input->psz_source );
226
    vlc_object_attach( p_input, p_parent );
Sam Hocevar's avatar
 
Sam Hocevar committed
227

Sam Hocevar's avatar
Sam Hocevar committed
228
    /* Create thread and wait for its readiness. */
229 230
    if( vlc_thread_create( p_input, "input", RunThread,
                           VLC_THREAD_PRIORITY_INPUT, VLC_TRUE ) )
Michel Kaempf's avatar
Michel Kaempf committed
231
    {
232
        msg_Err( p_input, "cannot create input thread" );
Michel Kaempf's avatar
Michel Kaempf committed
233
        free( p_input );
234
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
235
    }
236

237
    return p_input;
Michel Kaempf's avatar
Michel Kaempf committed
238 239
}

240
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
241
 * input_StopThread: mark an input thread as zombie
242
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
243
 * This function should not return until the thread is effectively cancelled.
244
 *****************************************************************************/
Sam Hocevar's avatar
Sam Hocevar committed
245
void input_StopThread( input_thread_t *p_input )
Michel Kaempf's avatar
Michel Kaempf committed
246
{
Sam Hocevar's avatar
 
Sam Hocevar committed
247 248
    /* Make the thread exit from a possible vlc_cond_wait() */
    vlc_mutex_lock( &p_input->stream.stream_lock );
249 250
    /* Request thread destruction */
    p_input->b_die = 1;
Michel Kaempf's avatar
Michel Kaempf committed
251

252 253
    vlc_cond_signal( &p_input->stream.stream_wait );
    vlc_mutex_unlock( &p_input->stream.stream_lock );
Sam Hocevar's avatar
 
Sam Hocevar committed
254 255 256 257 258 259 260 261 262 263
}

/*****************************************************************************
 * 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 */
264
    vlc_thread_join( p_input );
Sam Hocevar's avatar
 
Sam Hocevar committed
265 266 267

    /* Destroy Mutex locks */
    vlc_mutex_destroy( &p_input->stream.control.control_lock );
Sam Hocevar's avatar
 
Sam Hocevar committed
268
    vlc_cond_destroy( &p_input->stream.stream_wait );
Sam Hocevar's avatar
 
Sam Hocevar committed
269
    vlc_mutex_destroy( &p_input->stream.stream_lock );
Michel Kaempf's avatar
Michel Kaempf committed
270 271
}

272
/*****************************************************************************
273
 * RunThread: main thread loop
274
 *****************************************************************************
275
 * Thread in charge of processing the network packets and demultiplexing.
276
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
277
static int RunThread( input_thread_t *p_input )
Michel Kaempf's avatar
Michel Kaempf committed
278
{
279 280 281
    vlc_value_t  val;
    mtime_t      i_update_next = -1;

Sam Hocevar's avatar
Sam Hocevar committed
282 283 284
    /* Signal right now, otherwise we'll get stuck in a peek */
    vlc_thread_ready( p_input );

Sam Hocevar's avatar
 
Sam Hocevar committed
285 286 287 288 289
    if( InitThread( p_input ) )
    {
        /* If we failed, wait before we are killed, and exit */
        p_input->b_error = 1;
        ErrorThread( p_input );
Sam Hocevar's avatar
Sam Hocevar committed
290
        p_input->b_dead = 1;
Sam Hocevar's avatar
 
Sam Hocevar committed
291
        return 0;
Sam Hocevar's avatar
 
Sam Hocevar committed
292
    }
Michel Kaempf's avatar
Michel Kaempf committed
293

294
    /* initialization is complete */
295
    vlc_mutex_lock( &p_input->stream.stream_lock );
296 297
    p_input->stream.b_changed        = 1;
    p_input->stream.control.i_status = PLAYING_S;
298 299
    vlc_mutex_unlock( &p_input->stream.stream_lock );

300 301 302
    val.i_int = PLAYING_S;
    var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );

Sam Hocevar's avatar
 
Sam Hocevar committed
303 304
    while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
    {
305
        unsigned int i, i_count;
306

Sam Hocevar's avatar
 
Sam Hocevar committed
307
        p_input->c_loops++;
Sam Hocevar's avatar
 
Sam Hocevar committed
308

309
        vlc_mutex_lock( &p_input->stream.stream_lock );
310

311 312 313 314 315
        if( p_input->stream.p_new_program )
        {
            if( p_input->pf_set_program != NULL )
            {

Johan Bilien's avatar
 
Johan Bilien committed
316 317
                /* Reinitialize buffer manager. */
                input_AccessReinit( p_input );
318 319

                p_input->pf_set_program( p_input,
320
                                         p_input->stream.p_new_program );
321

322 323 324 325
                /* Escape all decoders for the stream discontinuity they
                 * will encounter. */
                input_EscapeDiscontinuity( p_input );

326 327 328 329 330 331 332 333 334 335 336
                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
                    pgrm_descriptor_t * p_pgrm
                                            = p_input->stream.pp_programs[i];

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
            }
            p_input->stream.p_new_program = NULL;
        }
337

338 339
        if( p_input->stream.p_new_area )
        {
340 341
            if( p_input->stream.b_seekable && p_input->pf_set_area != NULL )
            {
342
                input_AccessReinit( p_input );
343 344 345

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

346 347 348 349
                /* Escape all decoders for the stream discontinuity they
                 * will encounter. */
                input_EscapeDiscontinuity( p_input );

350 351 352 353 354 355 356 357 358
                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
                    pgrm_descriptor_t * p_pgrm
                                            = p_input->stream.pp_programs[i];

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
            }
359 360 361
            p_input->stream.p_new_area = NULL;
        }

362
        if( p_input->stream.p_selected_area->i_seek != NO_SEEK )
Sam Hocevar's avatar
 
Sam Hocevar committed
363
        {
364
            if( p_input->stream.p_selected_area->i_size > 0 )
365
            {
366 367 368
                unsigned int i;
                double f = (double)p_input->stream.p_selected_area->i_seek /
                           (double)p_input->stream.p_selected_area->i_size;
369

Christophe Massiot's avatar
Christophe Massiot committed
370
                vlc_mutex_unlock( &p_input->stream.stream_lock );
371
                demux_Control( p_input, DEMUX_SET_POSITION, f );
Christophe Massiot's avatar
Christophe Massiot committed
372
                vlc_mutex_lock( &p_input->stream.stream_lock );
373

374 375 376 377
                /* Escape all decoders for the stream discontinuity they
                 * will encounter. */
                input_EscapeDiscontinuity( p_input );

378 379
                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
                {
380
                    pgrm_descriptor_t * p_pgrm=p_input->stream.pp_programs[i];
381 382 383 384 385

                    /* Reinitialize synchro. */
                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
                }
            }
386
            p_input->stream.p_selected_area->i_seek = NO_SEEK;
Sam Hocevar's avatar
 
Sam Hocevar committed
387
        }
388

389 390 391 392 393 394 395 396 397 398 399 400
        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;
        }

401 402 403 404 405 406 407 408 409 410 411 412 413 414
        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;
        }

415
        vlc_mutex_unlock( &p_input->stream.stream_lock );
Sam Hocevar's avatar
 
Sam Hocevar committed
416

Christophe Massiot's avatar
Christophe Massiot committed
417 418
        /* Read and demultiplex some data. */
        i_count = p_input->pf_demux( p_input );
Sam Hocevar's avatar
 
Sam Hocevar committed
419

Gildas Bazin's avatar
 
Gildas Bazin committed
420
        if( i_count == 0 )
Sam Hocevar's avatar
 
Sam Hocevar committed
421
        {
422
            /* End of file - we do not set b_die because only the
423
             * playlist is allowed to do so. */
424
            msg_Info( p_input, "EOF reached" );
425 426 427 428 429
            p_input->b_eof = 1;
        }
        else if( i_count < 0 )
        {
            p_input->b_error = 1;
430
        }
431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452

        if( !p_input->b_error && !p_input->b_eof && i_update_next < mdate() )
        {
            double d;

            /* update input status variables */
            if( !demux_Control( p_input, DEMUX_GET_POSITION, &d ) )
            {
                val.f_float = (float)d;
                var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
            }
            if( !demux_Control( p_input, DEMUX_GET_TIME, &val.i_time ) )
            {
                var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
            }
            if( !demux_Control( p_input, DEMUX_GET_LENGTH, &val.i_time ) )
            {
                var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );
            }

            i_update_next = mdate() + 200000LL;
        }
453 454
    }

Sam Hocevar's avatar
 
Sam Hocevar committed
455
    if( p_input->b_error || p_input->b_eof )
456 457 458
    {
        ErrorThread( p_input );
    }
459

460
    EndThread( p_input );
Sam Hocevar's avatar
 
Sam Hocevar committed
461

Sam Hocevar's avatar
 
Sam Hocevar committed
462
    return 0;
463 464
}

465
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
466
 * InitThread: init the input Thread
467
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
468
static int InitThread( input_thread_t * p_input )
Michel Kaempf's avatar
Michel Kaempf committed
469
{
Christophe Massiot's avatar
Christophe Massiot committed
470
    /* Parse source string. Syntax : [[<access>][/<demux>]:][<source>] */
471
    char * psz_parser = p_input->psz_dupsource = strdup(p_input->psz_source);
Gildas Bazin's avatar
 
Gildas Bazin committed
472
    vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
473

Christophe Massiot's avatar
Christophe Massiot committed
474 475 476 477 478
    /* Skip the plug-in names */
    while( *psz_parser && *psz_parser != ':' )
    {
        psz_parser++;
    }
479
#if defined( WIN32 ) || defined( UNDER_CE )
Christophe Massiot's avatar
Christophe Massiot committed
480
    if( psz_parser - p_input->psz_dupsource == 1 )
Gildas Bazin's avatar
 
Gildas Bazin committed
481
    {
482
        msg_Warn( p_input, "drive letter %c: found in source string",
Christophe Massiot's avatar
Christophe Massiot committed
483
                           p_input->psz_dupsource[0] ) ;
Stéphane Borel's avatar
 
Stéphane Borel committed
484
        psz_parser = "";
Gildas Bazin's avatar
 
Gildas Bazin committed
485 486
    }
#endif
Sam Hocevar's avatar
 
Sam Hocevar committed
487

Christophe Massiot's avatar
Christophe Massiot committed
488
    if( !*psz_parser )
489
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
490
        p_input->psz_access = p_input->psz_demux = "";
Christophe Massiot's avatar
Christophe Massiot committed
491
        p_input->psz_name = p_input->psz_source;
Christophe Massiot's avatar
Christophe Massiot committed
492
        free( p_input->psz_dupsource );
493
        p_input->psz_dupsource = NULL;
Michel Kaempf's avatar
Michel Kaempf committed
494
    }
Christophe Massiot's avatar
Christophe Massiot committed
495 496 497
    else
    {
        *psz_parser++ = '\0';
498

Xavier Marchesini's avatar
 
Xavier Marchesini committed
499 500 501 502
        /* let's skip '//' */
        if( psz_parser[0] == '/' && psz_parser[1] == '/' )
        {
            psz_parser += 2 ;
503
        }
Xavier Marchesini's avatar
 
Xavier Marchesini committed
504 505

        p_input->psz_name = psz_parser ;
Sam Hocevar's avatar
 
Sam Hocevar committed
506

Christophe Massiot's avatar
Christophe Massiot committed
507
        /* Come back to parse the access and demux plug-ins */
Christophe Massiot's avatar
Christophe Massiot committed
508
        psz_parser = p_input->psz_dupsource;
Gildas Bazin's avatar
 
Gildas Bazin committed
509

Stéphane Borel's avatar
 
Stéphane Borel committed
510
        if( !*psz_parser )
Christophe Massiot's avatar
Christophe Massiot committed
511 512
        {
            /* No access */
Sam Hocevar's avatar
 
Sam Hocevar committed
513
            p_input->psz_access = "";
Christophe Massiot's avatar
Christophe Massiot committed
514 515 516 517
        }
        else if( *psz_parser == '/' )
        {
            /* No access */
Sam Hocevar's avatar
 
Sam Hocevar committed
518
            p_input->psz_access = "";
Christophe Massiot's avatar
Christophe Massiot committed
519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534
            psz_parser++;
        }
        else
        {
            p_input->psz_access = psz_parser;

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

            if( *psz_parser == '/' )
            {
                *psz_parser++ = '\0';
            }
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
535

Christophe Massiot's avatar
Christophe Massiot committed
536 537 538
        if( !*psz_parser )
        {
            /* No demux */
Sam Hocevar's avatar
 
Sam Hocevar committed
539
            p_input->psz_demux = "";
Christophe Massiot's avatar
Christophe Massiot committed
540 541 542 543 544
        }
        else
        {
            p_input->psz_demux = psz_parser;
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
545
    }
Christophe Massiot's avatar
Christophe Massiot committed
546

547 548
    msg_Dbg( p_input, "access `%s', demux `%s', name `%s'",
             p_input->psz_access, p_input->psz_demux, p_input->psz_name );
Christophe Massiot's avatar
Christophe Massiot committed
549 550

    if( input_AccessInit( p_input ) == -1 )
551
    {
552 553 554 555 556 557 558 559 560 561 562 563 564 565 566
        return VLC_EGENERIC;
    }

    /* Initialize optional stream output. (before demuxer)*/
    var_Get( p_input, "sout", &val );
    if( val.psz_string != NULL )
    {
        if ( *val.psz_string && (p_input->stream.p_sout =
             sout_NewInstance( p_input, val.psz_string )) == NULL )
        {
            msg_Err( p_input, "cannot start stream output instance, aborting" );
            free( val.psz_string );
            return VLC_EGENERIC;
        }
        free( val.psz_string );
567
    }
Christophe Massiot's avatar
Christophe Massiot committed
568

569
    /* Find and open appropriate access module */
570 571
    p_input->p_access = module_Need( p_input, "access",
                                     p_input->psz_access );
Christophe Massiot's avatar
Christophe Massiot committed
572

573 574 575 576 577 578 579 580 581 582 583 584 585 586
    if ( p_input->p_access == NULL
          && (*p_input->psz_demux || *p_input->psz_access) )
    {
        /* Maybe we got something like :
         * /Volumes/toto:titi/gabu.mpg */
        p_input->psz_access = p_input->psz_demux = "";
        p_input->psz_name = p_input->psz_source;
        free( p_input->psz_dupsource);
        p_input->psz_dupsource = NULL;

        p_input->p_access = module_Need( p_input, "access",
                                         p_input->psz_access );
    }

587
    if( p_input->p_access == NULL )
588
    {
589
        msg_Err( p_input, "no suitable access module for `%s/%s://%s'",
590
                 p_input->psz_access, p_input->psz_demux, p_input->psz_name );
591 592 593 594 595
        if ( p_input->stream.p_sout != NULL )
        {
            sout_DeleteInstance( p_input->stream.p_sout );
        }
        return VLC_EGENERIC;
596
    }
Christophe Massiot's avatar
Christophe Massiot committed
597 598 599

    /* Waiting for stream. */
    if( p_input->i_mtu )
Christophe Massiot's avatar
Christophe Massiot committed
600
    {
Christophe Massiot's avatar
Christophe Massiot committed
601
        p_input->i_bufsize = p_input->i_mtu;
Christophe Massiot's avatar
Christophe Massiot committed
602
    }
603 604
    else
    {
Christophe Massiot's avatar
Christophe Massiot committed
605
        p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
606
    }
607

Gildas Bazin's avatar
 
Gildas Bazin committed
608 609 610 611 612
    /* If the desynchronisation requested by the user is < 0, we need to
     * cache more data. */
    if( p_input->p_vlc->i_desync < 0 )
        p_input->i_pts_delay -= p_input->p_vlc->i_desync;

Sam Hocevar's avatar
 
Sam Hocevar committed
613
    if( p_input->p_current_data == NULL && p_input->pf_read != NULL )
614
    {
Christophe Massiot's avatar
Christophe Massiot committed
615 616
        while( !input_FillBuffer( p_input ) )
        {
617
            if( p_input->b_die || p_input->b_error || p_input->b_eof )
Christophe Massiot's avatar
Christophe Massiot committed
618
            {
619
                module_Unneed( p_input, p_input->p_access );
620 621 622 623 624
                if ( p_input->stream.p_sout != NULL )
                {
                    sout_DeleteInstance( p_input->stream.p_sout );
                }
                return VLC_EGENERIC;
Christophe Massiot's avatar
Christophe Massiot committed
625 626
            }
        }
627
    }
Sam Hocevar's avatar
 
Sam Hocevar committed
628

629
    /* Find and open appropriate demux module */
630 631
    p_input->p_demux = module_Need( p_input, "demux",
                                    p_input->psz_demux );
Sam Hocevar's avatar
 
Sam Hocevar committed
632

633
    if( p_input->p_demux == NULL )
634
    {
635
        msg_Err( p_input, "no suitable demux module for `%s/%s://%s'",
636
                 p_input->psz_access, p_input->psz_demux, p_input->psz_name );
637
        module_Unneed( p_input, p_input->p_access );
638
        if ( p_input->stream.p_sout != NULL )
639
        {
640
            sout_DeleteInstance( p_input->stream.p_sout );
641
        }
642
        return VLC_EGENERIC;
643 644
    }

645
    return VLC_SUCCESS;
Michel Kaempf's avatar
Michel Kaempf committed
646 647
}

648
/*****************************************************************************
649
 * ErrorThread: RunThread() error loop
650
 *****************************************************************************
651
 * This function is called when an error occured during thread main's loop.
652
 *****************************************************************************/
653
static void ErrorThread( input_thread_t *p_input )
Michel Kaempf's avatar
Michel Kaempf committed
654
{
655
    while( !p_input->b_die )
Michel Kaempf's avatar
Michel Kaempf committed
656
    {
657 658
        /* Sleep a while */
        msleep( INPUT_IDLE_SLEEP );
Michel Kaempf's avatar
Michel Kaempf committed
659 660 661
    }
}

662
/*****************************************************************************
663
 * EndThread: end the input thread
664
 *****************************************************************************/
665
static void EndThread( input_thread_t * p_input )
666
{
667
#ifdef HAVE_SYS_TIMES_H
668 669 670
    /* Display statistics */
    struct tms  cpu_usage;
    times( &cpu_usage );
Sam Hocevar's avatar
 
Sam Hocevar committed
671

672
    msg_Dbg( p_input, "%ld loops consuming user: %ld, system: %ld",
673
             p_input->c_loops, cpu_usage.tms_utime, cpu_usage.tms_stime );
674
#else
675
    msg_Dbg( p_input, "%ld loops", p_input->c_loops );
676
#endif
677

678 679
    input_DumpStream( p_input );

Sam Hocevar's avatar
 
Sam Hocevar committed
680 681 682
    /* Free all ES and destroy all decoder threads */
    input_EndStream( p_input );

683 684 685
    /* Close optional stream output instance */
    if ( p_input->stream.p_sout != NULL )
    {
686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
        vlc_object_t *p_pl = vlc_object_find( p_input, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
        vlc_value_t keep;

        if( var_Get( p_input, "sout-keep", &keep ) >= 0 && keep.b_bool && p_pl )
        {
            /* attach sout to the playlist */
            msg_Warn( p_input, "keeping sout" );
            vlc_object_detach( p_input->stream.p_sout );
            vlc_object_attach( p_input->stream.p_sout, p_pl );
        }
        else
        {
            msg_Warn( p_input, "destroying sout" );
            sout_DeleteInstance( p_input->stream.p_sout );
        }
        if( p_pl )
        {
            vlc_object_release( p_pl );
        }
705 706
    }

Sam Hocevar's avatar
 
Sam Hocevar committed
707
    /* Free demultiplexer's data */
708
    module_Unneed( p_input, p_input->p_demux );
Sam Hocevar's avatar
 
Sam Hocevar committed
709

710
    /* Close the access plug-in */
711
    module_Unneed( p_input, p_input->p_access );
Sam Hocevar's avatar
 
Sam Hocevar committed
712

Christophe Massiot's avatar
Christophe Massiot committed
713 714
    input_AccessEnd( p_input );

715 716 717 718
    /* Free info structures XXX destroy es before 'cause vorbis */
    msg_Dbg( p_input, "freeing info structures...");
    input_DelInfo( p_input );

Christophe Massiot's avatar
Christophe Massiot committed
719
    free( p_input->psz_source );
720
    if ( p_input->psz_dupsource != NULL ) free( p_input->psz_dupsource );
721 722 723

    /* Tell we're dead */
    p_input->b_dead = 1;
Sam Hocevar's avatar
 
Sam Hocevar committed
724 725
}

Gildas Bazin's avatar
 
Gildas Bazin committed
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820
/*****************************************************************************
 * ParseOption: parses the options for the input
 *****************************************************************************
 * This function parses the input (config) options and creates their associated
 * object variables.
 * Options are of the form "[no[-]]foo[=bar]" where foo is the option name and
 * bar is the value of the option.
 *****************************************************************************/
static void ParseOption( input_thread_t *p_input, const char *psz_option )
{
    char *psz_name = (char *)psz_option;
    char *psz_value = strchr( psz_option, '=' );
    int  i_name_len, i_type;
    vlc_bool_t b_isno = VLC_FALSE;
    vlc_value_t val;

    if( psz_value ) i_name_len = psz_value - psz_option;
    else i_name_len = strlen( psz_option );

    /* It's too much of an hassle to remove the ':' when we parse
     * the cmd line :) */
    if( i_name_len && *psz_name == ':' )
    {
        psz_name++;
        i_name_len--;
    }

    if( i_name_len == 0 ) return;

    psz_name = strndup( psz_name, i_name_len );
    if( psz_value ) psz_value++;

    i_type = config_GetType( p_input, psz_name );

    if( !i_type && !psz_value )
    {
        /* check for "no-foo" or "nofoo" */
        if( !strncmp( psz_name, "no-", 3 ) )
        {
            memmove( psz_name, psz_name + 3, strlen(psz_name) + 1 - 3 );
        }
        else if( !strncmp( psz_name, "no", 2 ) )
        {
            memmove( psz_name, psz_name + 2, strlen(psz_name) + 1 - 2 );
        }
        else goto cleanup;           /* Option doesn't exist */

        b_isno = VLC_TRUE;
        i_type = config_GetType( p_input, psz_name );

        if( !i_type ) goto cleanup;  /* Option doesn't exist */
    }
    else if( !i_type ) goto cleanup; /* Option doesn't exist */

    if( ( i_type != VLC_VAR_BOOL ) &&
        ( !psz_value || !*psz_value ) ) goto cleanup; /* Invalid value */

    /* Create the variable in the input object.
     * Children of the input object will be able to retreive this value
     * thanks to the inheritance property of the object variables. */
    var_Create( p_input, psz_name, i_type );

    switch( i_type )
    {
    case VLC_VAR_BOOL:
        val.b_bool = !b_isno;
        break;

    case VLC_VAR_INTEGER:
        val.i_int = atoi( psz_value );
        break;

    case VLC_VAR_FLOAT:
        val.f_float = atof( psz_value );
        break;

    case VLC_VAR_STRING:
    case VLC_VAR_FILE:
    case VLC_VAR_DIRECTORY:
        val.psz_string = psz_value;
        break;

    default:
        goto cleanup;
        break;
    }

    var_Set( p_input, psz_name, val );

    msg_Dbg( p_input, "set input option: %s to %s", psz_name, psz_value );

  cleanup:
    if( psz_name ) free( psz_name );
    return;
}
821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905

/*****************************************************************************
 * Callbacks  (position, time, state, rate )
 *****************************************************************************/
static int PositionCallback( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t *)p_this;

    msg_Warn( p_input, "cmd=%s old=%f new=%f",
              psz_cmd,
              oldval.f_float, newval.f_float );

    vlc_mutex_lock( &p_input->stream.stream_lock );
    p_input->stream.p_selected_area->i_seek =
        (int64_t)( newval.f_float * (double)p_input->stream.p_selected_area->i_size );
    vlc_mutex_unlock( &p_input->stream.stream_lock );

    return VLC_SUCCESS;
}

static int TimeCallback    ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t *)p_this;

    /* FIXME TODO FIXME */
    msg_Warn( p_input, "cmd=%s old=%lld new=%lld",
              psz_cmd,
              oldval.i_time, newval.i_time );

    vlc_mutex_lock( &p_input->stream.stream_lock );
    p_input->stream.p_selected_area->i_seek =
        newval.i_time / 1000000 * 50 * p_input->stream.i_mux_rate;
    vlc_mutex_unlock( &p_input->stream.stream_lock );

    return VLC_SUCCESS;
}

static int StateCallback   ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t *)p_this;
    msg_Warn( p_input, "cmd=%s old=%d new=%d",
              psz_cmd, oldval.i_int, newval.i_int );

    switch( newval.i_int )
    {
        case PLAYING_S:
            input_SetStatus( p_input, INPUT_STATUS_PLAY );
            return VLC_SUCCESS;
        case PAUSE_S:
            input_SetStatus( p_input, INPUT_STATUS_PAUSE );
            return VLC_SUCCESS;
        case END_S:
            input_SetStatus( p_input, INPUT_STATUS_END );
            return VLC_SUCCESS;
        default:
            msg_Err( p_input, "cannot set new state (invalid)" );
            return VLC_EGENERIC;
    }
}

static int RateCallback    ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t *)p_this;

    if( !strcmp( psz_cmd, "rate-slower" ) )
    {
        input_SetStatus( p_input, INPUT_STATUS_SLOWER );
    }
    else if( !strcmp( psz_cmd, "rate-faster" ) )
    {
        input_SetStatus( p_input, INPUT_STATUS_FASTER );
    }
    else
    {
        msg_Warn( p_input, "cmd=%s old=%d new=%d",
                  psz_cmd, oldval.i_int, newval.i_int );
        input_SetRate( p_input, newval.i_int );
    }
    return VLC_SUCCESS;
}