git.sesse.net Git - vlc/blob - src/input/decoder.c

   1 /*****************************************************************************
   2  * decoder.c: Functions for the management of decoders
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Laurent Aimar <fenrir@via.ecp.fr>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32 #include <assert.h>
  33
  34 #include <vlc_common.h>
  35
  36 #include <vlc_block.h>
  37 #include <vlc_vout.h>
  38 #include <vlc_aout.h>
  39 #include <vlc_sout.h>
  40 #include <vlc_codec.h>
  41 #include <vlc_spu.h>
  42 #include <vlc_meta.h>
  43 #include <vlc_dialog.h>
  44 #include <vlc_modules.h>
  45
  46 #include "audio_output/aout_internal.h"
  47 #include "stream_output/stream_output.h"
  48 #include "input_internal.h"
  49 #include "clock.h"
  50 #include "decoder.h"
  51 #include "event.h"
  52 #include "resource.h"
  53
  54 #include "../video_output/vout_control.h"
  55
  56 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, bool,
  57                                  sout_instance_t *p_sout );
  58 static void       DeleteDecoder( decoder_t * );
  59
  60 static void      *DecoderThread( vlc_object_t * );
  61 static void       DecoderProcess( decoder_t *, block_t * );
  62 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
  63 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
  64 static void       DecoderFlush( decoder_t * );
  65 static void       DecoderSignalBuffering( decoder_t *, bool );
  66 static void       DecoderFlushBuffering( decoder_t * );
  67
  68 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
  69
  70 /* Buffers allocation callbacks for the decoders */
  71 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  72 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  73
  74 static picture_t *vout_new_buffer( decoder_t * );
  75 static void vout_del_buffer( decoder_t *, picture_t * );
  76 static void vout_link_picture( decoder_t *, picture_t * );
  77 static void vout_unlink_picture( decoder_t *, picture_t * );
  78
  79 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
  80 static void spu_del_buffer( decoder_t *, subpicture_t * );
  81
  82 struct decoder_owner_sys_t
  83 {
  84     int64_t         i_preroll_end;
  85
  86     input_thread_t  *p_input;
  87     input_clock_t   *p_clock;
  88     int             i_last_rate;
  89
  90     vout_thread_t   *p_spu_vout;
  91     int              i_spu_channel;
  92     int64_t          i_spu_order;
  93
  94     sout_instance_t         *p_sout;
  95     sout_packetizer_input_t *p_sout_input;
  96
  97     /* Some decoders require already packetized data (ie. not truncated) */
  98     decoder_t *p_packetizer;
  99     bool b_packetizer;
 100
 101     /* Current format in use by the output */
 102     video_format_t video;
 103     audio_format_t audio;
 104     es_format_t    sout;
 105
 106     /* */
 107     bool           b_fmt_description;
 108     es_format_t    fmt_description;
 109     vlc_meta_t     *p_description;
 110
 111     /* fifo */
 112     block_fifo_t *p_fifo;
 113
 114     /* Lock for communication with decoder thread */
 115     vlc_mutex_t lock;
 116     vlc_cond_t  wait_request;
 117     vlc_cond_t  wait_acknowledge;
 118
 119     /* -- These variables need locking on write(only) -- */
 120     aout_instance_t *p_aout;
 121     aout_input_t    *p_aout_input;
 122
 123     vout_thread_t   *p_vout;
 124
 125     /* -- Theses variables need locking on read *and* write -- */
 126     /* */
 127     /* Pause */
 128     bool b_paused;
 129     struct
 130     {
 131         mtime_t i_date;
 132         int     i_ignore;
 133     } pause;
 134
 135     /* Buffering */
 136     bool b_buffering;
 137     struct
 138     {
 139         bool b_first;
 140         bool b_full;
 141         int  i_count;
 142
 143         picture_t     *p_picture;
 144         picture_t     **pp_picture_next;
 145
 146         subpicture_t  *p_subpic;
 147         subpicture_t  **pp_subpic_next;
 148
 149         aout_buffer_t *p_audio;
 150         aout_buffer_t **pp_audio_next;
 151
 152         block_t       *p_block;
 153         block_t       **pp_block_next;
 154     } buffer;
 155
 156     /* Flushing */
 157     bool b_flushing;
 158
 159     /* CC */
 160     struct
 161     {
 162         bool b_supported;
 163         bool pb_present[4];
 164         decoder_t *pp_decoder[4];
 165     } cc;
 166
 167     /* Delay */
 168     mtime_t i_ts_delay;
 169 };
 170
 171 #define DECODER_MAX_BUFFERING_COUNT (4)
 172 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
 173 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
 174
 175 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
 176  * a bogus PTS and won't be displayed */
 177 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
 178
 179 /* */
 180 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
 181
 182
 183 /*****************************************************************************
 184  * Public functions
 185  *****************************************************************************/
 186 picture_t *decoder_NewPicture( decoder_t *p_decoder )
 187 {
 188     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
 189     if( !p_picture )
 190         msg_Warn( p_decoder, "can't get output picture" );
 191     return p_picture;
 192 }
 193 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
 194 {
 195     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
 196 }
 197 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 198 {
 199     p_decoder->pf_picture_link( p_decoder, p_picture );
 200 }
 201 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 202 {
 203     p_decoder->pf_picture_unlink( p_decoder, p_picture );
 204 }
 205
 206 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
 207 {
 208     if( !p_decoder->pf_aout_buffer_new )
 209         return NULL;
 210     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
 211 }
 212 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
 213 {
 214     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
 215 }
 216
 217 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
 218                                      const subpicture_updater_t *p_dyn )
 219 {
 220     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
 221     if( !p_subpicture )
 222         msg_Warn( p_decoder, "can't get output subpicture" );
 223     return p_subpicture;
 224 }
 225
 226 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
 227 {
 228     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
 229 }
 230
 231 /* decoder_GetInputAttachments:
 232  */
 233 int decoder_GetInputAttachments( decoder_t *p_dec,
 234                                  input_attachment_t ***ppp_attachment,
 235                                  int *pi_attachment )
 236 {
 237     if( !p_dec->pf_get_attachments )
 238         return VLC_EGENERIC;
 239
 240     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
 241 }
 242 /* decoder_GetDisplayDate:
 243  */
 244 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 245 {
 246     if( !p_dec->pf_get_display_date )
 247         return VLC_TS_INVALID;
 248
 249     return p_dec->pf_get_display_date( p_dec, i_ts );
 250 }
 251 /* decoder_GetDisplayRate:
 252  */
 253 int decoder_GetDisplayRate( decoder_t *p_dec )
 254 {
 255     if( !p_dec->pf_get_display_rate )
 256         return INPUT_RATE_DEFAULT;
 257
 258     return p_dec->pf_get_display_rate( p_dec );
 259 }
 260
 261 /**
 262  * Spawns a new decoder thread
 263  *
 264  * \param p_input the input thread
 265  * \param p_es the es descriptor
 266  * \return the spawned decoder object
 267  */
 268 decoder_t *input_DecoderNew( input_thread_t *p_input,
 269                              es_format_t *fmt, input_clock_t *p_clock,
 270                              sout_instance_t *p_sout  )
 271 {
 272     decoder_t *p_dec = NULL;
 273     const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
 274     int i_priority;
 275
 276     /* Create the decoder configuration structure */
 277     p_dec = CreateDecoder( p_input, fmt, p_sout != NULL, p_sout );
 278     if( p_dec == NULL )
 279     {
 280         msg_Err( p_input, "could not create %s", psz_type );
 281         dialog_Fatal( p_input, _("Streaming / Transcoding failed"),
 282                       _("VLC could not open the %s module."),
 283                       vlc_gettext( psz_type ) );
 284         return NULL;
 285     }
 286
 287     if( !p_dec->p_module )
 288     {
 289         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 290
 291         DeleteDecoder( p_dec );
 292         return NULL;
 293     }
 294
 295     p_dec->p_owner->p_clock = p_clock;
 296     assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
 297
 298     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 299         i_priority = VLC_THREAD_PRIORITY_AUDIO;
 300     else
 301         i_priority = VLC_THREAD_PRIORITY_VIDEO;
 302
 303     /* Spawn the decoder thread */
 304     if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
 305     {
 306         msg_Err( p_dec, "cannot spawn decoder thread" );
 307         module_unneed( p_dec, p_dec->p_module );
 308         DeleteDecoder( p_dec );
 309         return NULL;
 310     }
 311
 312     return p_dec;
 313 }
 314
 315 /**
 316  * Kills a decoder thread and waits until it's finished
 317  *
 318  * \param p_input the input thread
 319  * \param p_es the es descriptor
 320  * \return nothing
 321  */
 322 void input_DecoderDelete( decoder_t *p_dec )
 323 {
 324     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 325
 326     vlc_object_kill( p_dec );
 327
 328     /* Make sure we aren't paused/buffering/waiting anymore */
 329     vlc_mutex_lock( &p_owner->lock );
 330     const bool b_was_paused = p_owner->b_paused;
 331     p_owner->b_paused = false;
 332     p_owner->b_buffering = false;
 333     p_owner->b_flushing = true;
 334     vlc_cond_signal( &p_owner->wait_request );
 335     vlc_mutex_unlock( &p_owner->lock );
 336
 337     vlc_thread_join( p_dec );
 338     p_owner->b_paused = b_was_paused;
 339
 340     module_unneed( p_dec, p_dec->p_module );
 341
 342     /* */
 343     if( p_dec->p_owner->cc.b_supported )
 344     {
 345         int i;
 346         for( i = 0; i < 4; i++ )
 347             input_DecoderSetCcState( p_dec, false, i );
 348     }
 349
 350     /* Delete decoder */
 351     DeleteDecoder( p_dec );
 352 }
 353
 354 /**
 355  * Put a block_t in the decoder's fifo.
 356  * Thread-safe w.r.t. the decoder. May be a cancellation point.
 357  *
 358  * \param p_dec the decoder object
 359  * \param p_block the data block
 360  */
 361 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
 362 {
 363     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 364
 365     if( b_do_pace )
 366     {
 367         /* The fifo is not consummed when buffering and so will
 368          * deadlock vlc.
 369          * There is no need to lock as b_buffering is never modify
 370          * inside decoder thread. */
 371         if( !p_owner->b_buffering )
 372             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
 373     }
 374 #ifdef __arm__
 375     else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
 376 #else
 377     else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
 378 #endif
 379     {
 380         /* FIXME: ideally we would check the time amount of data
 381          * in the FIFO instead of its size. */
 382         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 383                   "consumed quickly enough), resetting fifo!" );
 384         block_FifoEmpty( p_owner->p_fifo );
 385     }
 386
 387     block_FifoPut( p_owner->p_fifo, p_block );
 388 }
 389
 390 bool input_DecoderIsEmpty( decoder_t * p_dec )
 391 {
 392     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 393     assert( !p_owner->b_buffering );
 394
 395     bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
 396     if( b_empty )
 397     {
 398         vlc_mutex_lock( &p_owner->lock );
 399         /* TODO subtitles support */
 400         if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
 401             b_empty = vout_IsEmpty( p_owner->p_vout );
 402         else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout && p_owner->p_aout_input )
 403             b_empty = aout_InputIsEmpty( p_owner->p_aout, p_owner->p_aout_input );
 404         vlc_mutex_unlock( &p_owner->lock );
 405     }
 406     return b_empty;
 407 }
 408
 409 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
 410 {
 411     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 412     int i;
 413
 414     vlc_mutex_lock( &p_owner->lock );
 415     for( i = 0; i < 4; i++ )
 416         pb_present[i] =  p_owner->cc.pb_present[i];
 417     vlc_mutex_unlock( &p_owner->lock );
 418 }
 419 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
 420 {
 421     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 422
 423     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
 424
 425     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 426         return VLC_EGENERIC;
 427
 428     if( b_decode )
 429     {
 430         static const vlc_fourcc_t fcc[4] = {
 431             VLC_FOURCC('c', 'c', '1', ' '),
 432             VLC_FOURCC('c', 'c', '2', ' '),
 433             VLC_FOURCC('c', 'c', '3', ' '),
 434             VLC_FOURCC('c', 'c', '4', ' '),
 435         };
 436         decoder_t *p_cc;
 437         es_format_t fmt;
 438
 439         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
 440         p_cc = CreateDecoder( p_owner->p_input, &fmt, false, p_owner->p_sout );
 441         if( !p_cc )
 442         {
 443             msg_Err( p_dec, "could not create decoder" );
 444             dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
 445                           _("VLC could not open the decoder module.") );
 446             return VLC_EGENERIC;
 447         }
 448         else if( !p_cc->p_module )
 449         {
 450             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
 451             DeleteDecoder( p_cc );
 452             return VLC_EGENERIC;
 453         }
 454         p_cc->p_owner->p_clock = p_owner->p_clock;
 455
 456         vlc_mutex_lock( &p_owner->lock );
 457         p_owner->cc.pp_decoder[i_channel] = p_cc;
 458         vlc_mutex_unlock( &p_owner->lock );
 459     }
 460     else
 461     {
 462         decoder_t *p_cc;
 463
 464         vlc_mutex_lock( &p_owner->lock );
 465         p_cc = p_owner->cc.pp_decoder[i_channel];
 466         p_owner->cc.pp_decoder[i_channel] = NULL;
 467         vlc_mutex_unlock( &p_owner->lock );
 468
 469         if( p_cc )
 470         {
 471             vlc_object_kill( p_cc );
 472             module_unneed( p_cc, p_cc->p_module );
 473             DeleteDecoder( p_cc );
 474         }
 475     }
 476     return VLC_SUCCESS;
 477 }
 478 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
 479 {
 480     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 481
 482     *pb_decode = false;
 483     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 484         return VLC_EGENERIC;
 485
 486     vlc_mutex_lock( &p_owner->lock );
 487     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
 488     vlc_mutex_unlock( &p_owner->lock );
 489     return VLC_EGENERIC;
 490 }
 491
 492 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 493 {
 494     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 495
 496     vlc_mutex_lock( &p_owner->lock );
 497
 498     assert( !p_owner->b_paused || !b_paused );
 499
 500     p_owner->b_paused = b_paused;
 501     p_owner->pause.i_date = i_date;
 502     p_owner->pause.i_ignore = 0;
 503     vlc_cond_signal( &p_owner->wait_request );
 504
 505     DecoderOutputChangePause( p_dec, b_paused, i_date );
 506
 507     vlc_mutex_unlock( &p_owner->lock );
 508 }
 509
 510 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
 511 {
 512     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 513
 514     vlc_mutex_lock( &p_owner->lock );
 515     p_owner->i_ts_delay = i_delay;
 516     vlc_mutex_unlock( &p_owner->lock );
 517 }
 518
 519 void input_DecoderStartBuffering( decoder_t *p_dec )
 520 {
 521     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 522
 523     vlc_mutex_lock( &p_owner->lock );
 524
 525     DecoderFlush( p_dec );
 526
 527     p_owner->buffer.b_first = true;
 528     p_owner->buffer.b_full = false;
 529     p_owner->buffer.i_count = 0;
 530
 531     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
 532             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
 533
 534     p_owner->buffer.p_picture = NULL;
 535     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
 536
 537     p_owner->buffer.p_subpic = NULL;
 538     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
 539
 540     p_owner->buffer.p_audio = NULL;
 541     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
 542
 543     p_owner->buffer.p_block = NULL;
 544     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
 545
 546
 547     p_owner->b_buffering = true;
 548
 549     vlc_cond_signal( &p_owner->wait_request );
 550
 551     vlc_mutex_unlock( &p_owner->lock );
 552 }
 553
 554 void input_DecoderStopBuffering( decoder_t *p_dec )
 555 {
 556     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 557
 558     vlc_mutex_lock( &p_owner->lock );
 559
 560     p_owner->b_buffering = false;
 561
 562     vlc_cond_signal( &p_owner->wait_request );
 563
 564     vlc_mutex_unlock( &p_owner->lock );
 565 }
 566
 567 void input_DecoderWaitBuffering( decoder_t *p_dec )
 568 {
 569     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 570
 571     vlc_mutex_lock( &p_owner->lock );
 572
 573     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
 574     {
 575         block_FifoWake( p_owner->p_fifo );
 576         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 577     }
 578
 579     vlc_mutex_unlock( &p_owner->lock );
 580 }
 581
 582 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 583 {
 584     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 585
 586     *pi_duration = 0;
 587
 588     vlc_mutex_lock( &p_owner->lock );
 589     if( p_dec->fmt_out.i_cat == VIDEO_ES )
 590     {
 591         if( p_owner->b_paused && p_owner->p_vout )
 592         {
 593             vout_NextPicture( p_owner->p_vout, pi_duration );
 594             p_owner->pause.i_ignore++;
 595             vlc_cond_signal( &p_owner->wait_request );
 596         }
 597     }
 598     else
 599     {
 600         /* TODO subtitle should not be flushed */
 601         DecoderFlush( p_dec );
 602     }
 603     vlc_mutex_unlock( &p_owner->lock );
 604 }
 605
 606 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
 607 {
 608     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 609     bool b_changed;
 610
 611     vlc_mutex_lock( &p_owner->lock );
 612     b_changed = p_owner->b_fmt_description;
 613     if( b_changed )
 614     {
 615         if( p_fmt )
 616             es_format_Copy( p_fmt, &p_owner->fmt_description );
 617
 618         if( pp_meta )
 619         {
 620             *pp_meta = NULL;
 621             if( p_owner->p_description )
 622             {
 623                 *pp_meta = vlc_meta_New();
 624                 if( *pp_meta )
 625                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
 626             }
 627         }
 628         p_owner->b_fmt_description = false;
 629     }
 630     vlc_mutex_unlock( &p_owner->lock );
 631     return b_changed;
 632 }
 633
 634 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
 635 {
 636     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 637
 638     return block_FifoSize( p_owner->p_fifo );
 639 }
 640
 641 void input_DecoderGetObjects( decoder_t *p_dec,
 642                               vout_thread_t **pp_vout, aout_instance_t **pp_aout )
 643 {
 644     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 645
 646     vlc_mutex_lock( &p_owner->lock );
 647     if( pp_vout )
 648         *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
 649     if( pp_aout )
 650         *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
 651     vlc_mutex_unlock( &p_owner->lock );
 652 }
 653
 654 /*****************************************************************************
 655  * Internal functions
 656  *****************************************************************************/
 657 static int DecoderGetInputAttachments( decoder_t *p_dec,
 658                                        input_attachment_t ***ppp_attachment,
 659                                        int *pi_attachment )
 660 {
 661     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
 662                           ppp_attachment, pi_attachment );
 663 }
 664 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 665 {
 666     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 667
 668     vlc_mutex_lock( &p_owner->lock );
 669     if( p_owner->b_buffering || p_owner->b_paused )
 670         i_ts = VLC_TS_INVALID;
 671     vlc_mutex_unlock( &p_owner->lock );
 672
 673     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
 674         return i_ts;
 675
 676     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 677         return VLC_TS_INVALID;
 678
 679     return i_ts;
 680 }
 681 static int DecoderGetDisplayRate( decoder_t *p_dec )
 682 {
 683     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 684
 685     if( !p_owner->p_clock )
 686         return INPUT_RATE_DEFAULT;
 687     return input_clock_GetRate( p_owner->p_clock );
 688 }
 689
 690 /* */
 691 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 692 {
 693     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
 694              "VLC probably does not support this sound or video format.",
 695              (char*)&codec );
 696     dialog_Fatal( p_dec, _("No suitable decoder module"),
 697                  _("VLC does not support the audio or video format \"%4.4s\". "
 698                   "Unfortunately there is no way for you to fix this."),
 699                   (char*)&codec );
 700 }
 701
 702
 703 /**
 704  * Create a decoder object
 705  *
 706  * \param p_input the input thread
 707  * \param p_es the es descriptor
 708  * \param b_packetizer instead of a decoder
 709  * \return the decoder object
 710  */
 711 static decoder_t * CreateDecoder( input_thread_t *p_input,
 712                                   es_format_t *fmt, bool b_packetizer,
 713                                   sout_instance_t *p_sout )
 714 {
 715     decoder_t *p_dec;
 716     decoder_owner_sys_t *p_owner;
 717     es_format_t null_es_format;
 718
 719     p_dec = vlc_custom_create( p_input, sizeof( *p_dec ), VLC_OBJECT_DECODER,
 720                                "decoder" );
 721     if( p_dec == NULL )
 722         return NULL;
 723
 724     p_dec->pf_decode_audio = NULL;
 725     p_dec->pf_decode_video = NULL;
 726     p_dec->pf_decode_sub = NULL;
 727     p_dec->pf_get_cc = NULL;
 728     p_dec->pf_packetize = NULL;
 729
 730     /* Initialize the decoder */
 731     p_dec->p_module = NULL;
 732
 733     memset( &null_es_format, 0, sizeof(es_format_t) );
 734     es_format_Copy( &p_dec->fmt_in, fmt );
 735     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 736
 737     p_dec->p_description = NULL;
 738
 739     /* Allocate our private structure for the decoder */
 740     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 741     if( p_dec->p_owner == NULL )
 742     {
 743         vlc_object_release( p_dec );
 744         return NULL;
 745     }
 746     p_dec->p_owner->i_preroll_end = VLC_TS_INVALID;
 747     p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 748     p_dec->p_owner->p_input = p_input;
 749     p_dec->p_owner->p_aout = NULL;
 750     p_dec->p_owner->p_aout_input = NULL;
 751     p_dec->p_owner->p_vout = NULL;
 752     p_dec->p_owner->p_spu_vout = NULL;
 753     p_dec->p_owner->i_spu_channel = 0;
 754     p_dec->p_owner->i_spu_order = 0;
 755     p_dec->p_owner->p_sout = p_sout;
 756     p_dec->p_owner->p_sout_input = NULL;
 757     p_dec->p_owner->p_packetizer = NULL;
 758     p_dec->p_owner->b_packetizer = b_packetizer;
 759
 760     /* decoder fifo */
 761     if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
 762     {
 763         free( p_dec->p_owner );
 764         vlc_object_release( p_dec );
 765         return NULL;
 766     }
 767
 768     /* Set buffers allocation callbacks for the decoders */
 769     p_dec->pf_aout_buffer_new = aout_new_buffer;
 770     p_dec->pf_aout_buffer_del = aout_del_buffer;
 771     p_dec->pf_vout_buffer_new = vout_new_buffer;
 772     p_dec->pf_vout_buffer_del = vout_del_buffer;
 773     p_dec->pf_picture_link    = vout_link_picture;
 774     p_dec->pf_picture_unlink  = vout_unlink_picture;
 775     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 776     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 777     /* */
 778     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 779     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 780     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 781
 782     vlc_object_attach( p_dec, p_input );
 783
 784     /* Find a suitable decoder/packetizer module */
 785     if( !b_packetizer )
 786         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 787     else
 788         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 789
 790     /* Check if decoder requires already packetized data */
 791     if( !b_packetizer &&
 792         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 793     {
 794         p_dec->p_owner->p_packetizer =
 795             vlc_custom_create( p_input, sizeof( decoder_t ),
 796                                VLC_OBJECT_DECODER, "packetizer" );
 797         if( p_dec->p_owner->p_packetizer )
 798         {
 799             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
 800                             &p_dec->fmt_in );
 801
 802             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
 803                             &null_es_format );
 804
 805             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
 806
 807             p_dec->p_owner->p_packetizer->p_module =
 808                 module_need( p_dec->p_owner->p_packetizer,
 809                              "packetizer", "$packetizer", false );
 810
 811             if( !p_dec->p_owner->p_packetizer->p_module )
 812             {
 813                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
 814                 vlc_object_release( p_dec->p_owner->p_packetizer );
 815             }
 816         }
 817     }
 818
 819     /* Copy ourself the input replay gain */
 820     if( fmt->i_cat == AUDIO_ES )
 821     {
 822         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 823         {
 824             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 825             {
 826                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 827                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 828             }
 829             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 830             {
 831                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 832                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 833             }
 834         }
 835     }
 836
 837     /* */
 838     vlc_mutex_init( &p_owner->lock );
 839     vlc_cond_init( &p_owner->wait_request );
 840     vlc_cond_init( &p_owner->wait_acknowledge );
 841
 842     p_owner->b_fmt_description = false;
 843     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 844     p_owner->p_description = NULL;
 845
 846     p_owner->b_paused = false;
 847     p_owner->pause.i_date = VLC_TS_INVALID;
 848     p_owner->pause.i_ignore = 0;
 849
 850     p_owner->b_buffering = false;
 851     p_owner->buffer.b_first = true;
 852     p_owner->buffer.b_full = false;
 853     p_owner->buffer.i_count = 0;
 854     p_owner->buffer.p_picture = NULL;
 855     p_owner->buffer.p_subpic = NULL;
 856     p_owner->buffer.p_audio = NULL;
 857     p_owner->buffer.p_block = NULL;
 858
 859     p_owner->b_flushing = false;
 860
 861     /* */
 862     p_owner->cc.b_supported = false;
 863     if( !b_packetizer )
 864     {
 865         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 866             p_owner->cc.b_supported = true;
 867         if( p_dec->pf_get_cc )
 868             p_owner->cc.b_supported = true;
 869     }
 870
 871     for( unsigned i = 0; i < 4; i++ )
 872     {
 873         p_owner->cc.pb_present[i] = false;
 874         p_owner->cc.pp_decoder[i] = NULL;
 875     }
 876     p_owner->i_ts_delay = 0;
 877     return p_dec;
 878 }
 879
 880 /**
 881  * The decoding main loop
 882  *
 883  * \param p_dec the decoder
 884  */
 885 static void *DecoderThread( vlc_object_t *p_this )
 886 {
 887     decoder_t *p_dec = (decoder_t *)p_this;
 888     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 889
 890     /* The decoder's main loop */
 891     for( ;; )
 892     {
 893         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 894
 895         /* Make sure there is no cancellation point other than this one^^.
 896          * If you need one, be sure to push cleanup of p_block. */
 897         DecoderSignalBuffering( p_dec, p_block == NULL );
 898
 899         if( p_block )
 900         {
 901             int canc = vlc_savecancel();
 902
 903             if( p_dec->b_error )
 904                 DecoderError( p_dec, p_block );
 905             else
 906                 DecoderProcess( p_dec, p_block );
 907
 908             vlc_restorecancel( canc );
 909         }
 910     }
 911     return NULL;
 912 }
 913
 914 static block_t *DecoderBlockFlushNew()
 915 {
 916     block_t *p_null = block_Alloc( 128 );
 917     if( !p_null )
 918         return NULL;
 919
 920     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 921                        BLOCK_FLAG_CORRUPTED |
 922                        BLOCK_FLAG_CORE_FLUSH;
 923     memset( p_null->p_buffer, 0, p_null->i_buffer );
 924
 925     return p_null;
 926 }
 927
 928 static void DecoderFlush( decoder_t *p_dec )
 929 {
 930     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 931
 932     vlc_assert_locked( &p_owner->lock );
 933
 934     /* Empty the fifo */
 935     block_FifoEmpty( p_owner->p_fifo );
 936
 937     /* Monitor for flush end */
 938     p_owner->b_flushing = true;
 939     vlc_cond_signal( &p_owner->wait_request );
 940
 941     /* Send a special block */
 942     block_t *p_null = DecoderBlockFlushNew();
 943     if( !p_null )
 944         return;
 945     input_DecoderDecode( p_dec, p_null, false );
 946
 947     /* */
 948     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 949         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 950 }
 951
 952 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 953 {
 954     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 955
 956     vlc_mutex_lock( &p_owner->lock );
 957
 958     if( p_owner->b_buffering )
 959     {
 960         if( b_full )
 961             p_owner->buffer.b_full = true;
 962         vlc_cond_signal( &p_owner->wait_acknowledge );
 963     }
 964
 965     vlc_mutex_unlock( &p_owner->lock );
 966 }
 967
 968 static bool DecoderIsFlushing( decoder_t *p_dec )
 969 {
 970     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 971     bool b_flushing;
 972
 973     vlc_mutex_lock( &p_owner->lock );
 974
 975     b_flushing = p_owner->b_flushing;
 976
 977     vlc_mutex_unlock( &p_owner->lock );
 978
 979     return b_flushing;
 980 }
 981
 982 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
 983 {
 984     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 985
 986     vlc_assert_locked( &p_owner->lock );
 987
 988     while( !p_owner->b_flushing )
 989     {
 990         if( p_owner->b_paused )
 991         {
 992             if( p_owner->b_buffering && !p_owner->buffer.b_full )
 993                 break;
 994             if( p_owner->pause.i_ignore > 0 )
 995             {
 996                 p_owner->pause.i_ignore--;
 997                 break;
 998             }
 999         }
1000         else
1001         {
1002             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
1003                 break;
1004         }
1005         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1006     }
1007
1008     if( pb_reject )
1009         *pb_reject = p_owner->b_flushing;
1010 }
1011
1012 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1013 {
1014     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1015
1016     vlc_assert_locked( &p_owner->lock );
1017
1018     /* XXX only audio and video output have to be paused.
1019      * - for sout it is useless
1020      * - for subs, it is done by the vout
1021      */
1022     if( p_dec->fmt_out.i_cat == AUDIO_ES )
1023     {
1024         if( p_owner->p_aout && p_owner->p_aout_input )
1025             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1026                                  b_paused, i_date );
1027     }
1028     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1029     {
1030         if( p_owner->p_vout )
1031             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1032     }
1033 }
1034 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1035 {
1036     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1037         *pi_preroll = INT64_MAX;
1038     else if( p->i_dts > VLC_TS_INVALID )
1039         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1040     else if( p->i_pts > VLC_TS_INVALID )
1041         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1042 }
1043
1044 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1045 {
1046     mtime_t current_date = mdate();
1047
1048     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1049     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1050     {
1051         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1052          * for teletext streams. */
1053         return current_date + 400000;
1054     }
1055     return i_ts;
1056 }
1057
1058 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1059                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1060 {
1061     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1062     input_clock_t   *p_clock = p_owner->p_clock;
1063
1064     vlc_assert_locked( &p_owner->lock );
1065
1066     const mtime_t i_es_delay = p_owner->i_ts_delay;
1067
1068     if( p_clock )
1069     {
1070         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1071         int i_rate;
1072
1073         if( *pi_ts0 > VLC_TS_INVALID )
1074         {
1075             *pi_ts0 += i_es_delay;
1076             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1077                 *pi_ts1 += i_es_delay;
1078             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1079                 *pi_ts0 = VLC_TS_INVALID;
1080         }
1081         else
1082         {
1083             i_rate = input_clock_GetRate( p_clock );
1084         }
1085
1086         /* Do not create ephemere data because of rounding errors */
1087         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1088             *pi_ts1 += 1;
1089
1090         if( pi_duration )
1091             *pi_duration = ( *pi_duration * i_rate +
1092                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1093
1094         if( pi_rate )
1095             *pi_rate = i_rate;
1096
1097         if( b_telx )
1098         {
1099             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1100             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1101                 *pi_ts1 = *pi_ts0;
1102         }
1103     }
1104 }
1105
1106 /**
1107  * If *pb_reject, it does nothing, otherwise it waits for the given
1108  * deadline or a flush request (in which case it set *pi_reject to true.
1109  */
1110 static void DecoderWaitDate( decoder_t *p_dec,
1111                              bool *pb_reject, mtime_t i_deadline )
1112 {
1113     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1114
1115     if( *pb_reject || i_deadline < 0 )
1116         return;
1117
1118     for( ;; )
1119     {
1120         vlc_mutex_lock( &p_owner->lock );
1121         if( p_owner->b_flushing || p_dec->b_die )
1122         {
1123             *pb_reject = true;
1124             vlc_mutex_unlock( &p_owner->lock );
1125             break;
1126         }
1127         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1128                                         i_deadline );
1129         vlc_mutex_unlock( &p_owner->lock );
1130         if( i_ret )
1131             break;
1132     }
1133 }
1134
1135 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1136                               int *pi_played_sum, int *pi_lost_sum )
1137 {
1138     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1139     aout_instance_t *p_aout = p_owner->p_aout;
1140     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1141
1142     /* */
1143     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1144     {
1145         msg_Warn( p_dec, "non-dated audio buffer received" );
1146         *pi_lost_sum += 1;
1147         aout_BufferFree( p_audio );
1148         return;
1149     }
1150
1151     /* */
1152     vlc_mutex_lock( &p_owner->lock );
1153
1154     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1155     {
1156         p_audio->p_next = NULL;
1157
1158         *p_owner->buffer.pp_audio_next = p_audio;
1159         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1160
1161         p_owner->buffer.i_count++;
1162         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1163             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1164         {
1165             p_owner->buffer.b_full = true;
1166             vlc_cond_signal( &p_owner->wait_acknowledge );
1167         }
1168     }
1169
1170     for( ;; )
1171     {
1172         bool b_has_more = false;
1173         bool b_reject;
1174         DecoderWaitUnblock( p_dec, &b_reject );
1175
1176         if( p_owner->b_buffering )
1177         {
1178             vlc_mutex_unlock( &p_owner->lock );
1179             return;
1180         }
1181
1182         /* */
1183         if( p_owner->buffer.p_audio )
1184         {
1185             p_audio = p_owner->buffer.p_audio;
1186
1187             p_owner->buffer.p_audio = p_audio->p_next;
1188             p_owner->buffer.i_count--;
1189
1190             b_has_more = p_owner->buffer.p_audio != NULL;
1191             if( !b_has_more )
1192                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1193         }
1194
1195         /* */
1196         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1197         int i_rate = INPUT_RATE_DEFAULT;
1198
1199         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1200                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1201
1202         vlc_mutex_unlock( &p_owner->lock );
1203
1204         if( !p_aout || !p_aout_input ||
1205             p_audio->i_pts <= VLC_TS_INVALID ||
1206             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1207             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1208             b_reject = true;
1209
1210         DecoderWaitDate( p_dec, &b_reject,
1211                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1212
1213         if( !b_reject )
1214         {
1215             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1216                 *pi_played_sum += 1;
1217             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1218         }
1219         else
1220         {
1221             if( b_dated )
1222                 msg_Warn( p_aout, "received buffer in the future" );
1223             else
1224                 msg_Warn( p_dec, "non-dated audio buffer received" );
1225
1226             *pi_lost_sum += 1;
1227             aout_BufferFree( p_audio );
1228         }
1229
1230         if( !b_has_more )
1231             break;
1232
1233         vlc_mutex_lock( &p_owner->lock );
1234         if( !p_owner->buffer.p_audio )
1235         {
1236             vlc_mutex_unlock( &p_owner->lock );
1237             break;
1238         }
1239     }
1240 }
1241
1242 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1243 {
1244     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1245     input_thread_t  *p_input = p_owner->p_input;
1246     aout_buffer_t   *p_aout_buf;
1247     int i_decoded = 0;
1248     int i_lost = 0;
1249     int i_played = 0;
1250
1251     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1252     {
1253         aout_instance_t *p_aout = p_owner->p_aout;
1254         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1255
1256         if( p_dec->b_die )
1257         {
1258             /* It prevent freezing VLC in case of broken decoder */
1259             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1260             if( p_block )
1261                 block_Release( p_block );
1262             break;
1263         }
1264         i_decoded++;
1265
1266         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1267             p_aout_buf->i_pts < p_owner->i_preroll_end )
1268         {
1269             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1270             continue;
1271         }
1272
1273         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1274         {
1275             msg_Dbg( p_dec, "End of audio preroll" );
1276             if( p_owner->p_aout && p_owner->p_aout_input )
1277                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1278             /* */
1279             p_owner->i_preroll_end = VLC_TS_INVALID;
1280         }
1281
1282         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1283     }
1284
1285     /* Update ugly stat */
1286     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1287     {
1288         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1289
1290         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1291                              i_lost, NULL );
1292         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1293                              i_played, NULL );
1294         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1295                              i_decoded, NULL );
1296
1297         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1298     }
1299 }
1300 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1301 {
1302     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1303     block_t *p_cc;
1304     bool pb_present[4];
1305     bool b_processed = false;
1306     int i;
1307     int i_cc_decoder;
1308
1309     assert( p_dec_cc->pf_get_cc != NULL );
1310
1311     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1312     if( !p_owner->cc.b_supported )
1313         return;
1314
1315     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1316     if( !p_cc )
1317         return;
1318
1319     vlc_mutex_lock( &p_owner->lock );
1320     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1321     {
1322         p_owner->cc.pb_present[i] |= pb_present[i];
1323         if( p_owner->cc.pp_decoder[i] )
1324             i_cc_decoder++;
1325     }
1326
1327     for( i = 0; i < 4; i++ )
1328     {
1329         if( !p_owner->cc.pp_decoder[i] )
1330             continue;
1331
1332         if( i_cc_decoder > 1 )
1333             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1334         else
1335             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1336         i_cc_decoder--;
1337         b_processed = true;
1338     }
1339     vlc_mutex_unlock( &p_owner->lock );
1340
1341     if( !b_processed )
1342         block_Release( p_cc );
1343 }
1344
1345 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1346                               int *pi_played_sum, int *pi_lost_sum )
1347 {
1348     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1349     vout_thread_t  *p_vout = p_owner->p_vout;
1350     bool b_first_buffered;
1351
1352     if( p_picture->date <= VLC_TS_INVALID )
1353     {
1354         msg_Warn( p_vout, "non-dated video buffer received" );
1355         *pi_lost_sum += 1;
1356         vout_ReleasePicture( p_vout, p_picture );
1357         return;
1358     }
1359
1360     /* */
1361     vlc_mutex_lock( &p_owner->lock );
1362
1363     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1364     {
1365         p_picture->p_next = NULL;
1366
1367         *p_owner->buffer.pp_picture_next = p_picture;
1368         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1369
1370         p_owner->buffer.i_count++;
1371         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1372             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1373         {
1374             p_owner->buffer.b_full = true;
1375             vlc_cond_signal( &p_owner->wait_acknowledge );
1376         }
1377     }
1378     b_first_buffered = p_owner->buffer.p_picture != NULL;
1379
1380     for( ;; b_first_buffered = false )
1381     {
1382         bool b_has_more = false;
1383
1384         bool b_reject;
1385
1386         DecoderWaitUnblock( p_dec, &b_reject );
1387
1388         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1389         {
1390             vlc_mutex_unlock( &p_owner->lock );
1391             return;
1392         }
1393         bool b_buffering_first = p_owner->b_buffering;
1394
1395         /* */
1396         if( p_owner->buffer.p_picture )
1397         {
1398             p_picture = p_owner->buffer.p_picture;
1399
1400             p_owner->buffer.p_picture = p_picture->p_next;
1401             p_owner->buffer.i_count--;
1402
1403             b_has_more = p_owner->buffer.p_picture != NULL;
1404             if( !b_has_more )
1405                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1406         }
1407
1408         /* */
1409         if( b_buffering_first )
1410         {
1411             assert( p_owner->buffer.b_first );
1412             assert( !p_owner->buffer.i_count );
1413             msg_Dbg( p_dec, "Received first picture" );
1414             p_owner->buffer.b_first = false;
1415             p_picture->b_force = true;
1416         }
1417
1418         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1419         int i_rate = INPUT_RATE_DEFAULT;
1420         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1421                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1422
1423         vlc_mutex_unlock( &p_owner->lock );
1424
1425         /* */
1426         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1427             b_reject = true;
1428
1429         if( !b_reject )
1430         {
1431             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1432             {
1433                 /* Be sure to not display old picture after our own */
1434                 vout_Flush( p_vout, p_picture->date );
1435                 p_owner->i_last_rate = i_rate;
1436             }
1437             vout_PutPicture( p_vout, p_picture );
1438         }
1439         else
1440         {
1441             if( b_dated )
1442                 msg_Warn( p_vout, "early picture skipped" );
1443             else
1444                 msg_Warn( p_vout, "non-dated video buffer received" );
1445
1446             *pi_lost_sum += 1;
1447             vout_ReleasePicture( p_vout, p_picture );
1448         }
1449         int i_tmp_display;
1450         int i_tmp_lost;
1451         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1452
1453         *pi_played_sum += i_tmp_display;
1454         *pi_lost_sum += i_tmp_lost;
1455
1456         if( !b_has_more || b_buffering_first )
1457             break;
1458
1459         vlc_mutex_lock( &p_owner->lock );
1460         if( !p_owner->buffer.p_picture )
1461         {
1462             vlc_mutex_unlock( &p_owner->lock );
1463             break;
1464         }
1465     }
1466 }
1467
1468 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1469 {
1470     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1471     input_thread_t *p_input = p_owner->p_input;
1472     picture_t      *p_pic;
1473     int i_lost = 0;
1474     int i_decoded = 0;
1475     int i_displayed = 0;
1476
1477     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1478     {
1479         vout_thread_t  *p_vout = p_owner->p_vout;
1480         if( p_dec->b_die )
1481         {
1482             /* It prevent freezing VLC in case of broken decoder */
1483             vout_ReleasePicture( p_vout, p_pic );
1484             if( p_block )
1485                 block_Release( p_block );
1486             break;
1487         }
1488
1489         i_decoded++;
1490
1491         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1492         {
1493             vout_ReleasePicture( p_vout, p_pic );
1494             continue;
1495         }
1496
1497         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1498         {
1499             msg_Dbg( p_dec, "End of video preroll" );
1500             if( p_vout )
1501                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1502             /* */
1503             p_owner->i_preroll_end = VLC_TS_INVALID;
1504         }
1505
1506         if( p_dec->pf_get_cc &&
1507             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1508             DecoderGetCc( p_dec, p_dec );
1509
1510         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1511     }
1512     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1513     {
1514         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1515
1516         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1517                              i_decoded, NULL );
1518         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1519                              i_lost , NULL);
1520
1521         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1522                              i_displayed, NULL);
1523
1524         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1525     }
1526 }
1527
1528 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1529                             bool b_telx )
1530 {
1531     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1532     vout_thread_t *p_vout = p_owner->p_spu_vout;
1533
1534     /* */
1535     if( p_subpic->i_start <= VLC_TS_INVALID && !b_telx )
1536     {
1537         msg_Warn( p_dec, "non-dated spu buffer received" );
1538         subpicture_Delete( p_subpic );
1539         return;
1540     }
1541
1542     /* */
1543     vlc_mutex_lock( &p_owner->lock );
1544
1545     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1546     {
1547         p_subpic->p_next = NULL;
1548
1549         *p_owner->buffer.pp_subpic_next = p_subpic;
1550         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1551
1552         p_owner->buffer.i_count++;
1553         /* XXX it is important to be full after the first one */
1554         if( p_owner->buffer.i_count > 0 )
1555         {
1556             p_owner->buffer.b_full = true;
1557             vlc_cond_signal( &p_owner->wait_acknowledge );
1558         }
1559     }
1560
1561     for( ;; )
1562     {
1563         bool b_has_more = false;
1564         bool b_reject;
1565         DecoderWaitUnblock( p_dec, &b_reject );
1566
1567         if( p_owner->b_buffering )
1568         {
1569             vlc_mutex_unlock( &p_owner->lock );
1570             return;
1571         }
1572
1573         /* */
1574         if( p_owner->buffer.p_subpic )
1575         {
1576             p_subpic = p_owner->buffer.p_subpic;
1577
1578             p_owner->buffer.p_subpic = p_subpic->p_next;
1579             p_owner->buffer.i_count--;
1580
1581             b_has_more = p_owner->buffer.p_subpic != NULL;
1582             if( !b_has_more )
1583                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1584         }
1585
1586         /* */
1587         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1588                       NULL, INT64_MAX, b_telx );
1589
1590         vlc_mutex_unlock( &p_owner->lock );
1591
1592         if( p_subpic->i_start <= VLC_TS_INVALID )
1593             b_reject = true;
1594
1595         DecoderWaitDate( p_dec, &b_reject,
1596                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1597
1598         if( !b_reject )
1599             vout_PutSubpicture( p_vout, p_subpic );
1600         else
1601             subpicture_Delete( p_subpic );
1602
1603         if( !b_has_more )
1604             break;
1605         vlc_mutex_lock( &p_owner->lock );
1606         if( !p_owner->buffer.p_subpic )
1607         {
1608             vlc_mutex_unlock( &p_owner->lock );
1609             break;
1610         }
1611     }
1612 }
1613
1614 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1615                              bool b_telx )
1616 {
1617     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1618
1619     assert( p_owner->p_clock );
1620     assert( !p_sout_block->p_next );
1621
1622     vlc_mutex_lock( &p_owner->lock );
1623
1624     if( p_owner->b_buffering || p_owner->buffer.p_block )
1625     {
1626         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1627
1628         p_owner->buffer.i_count++;
1629         /* XXX it is important to be full after the first one */
1630         if( p_owner->buffer.i_count > 0 )
1631         {
1632             p_owner->buffer.b_full = true;
1633             vlc_cond_signal( &p_owner->wait_acknowledge );
1634         }
1635     }
1636
1637     for( ;; )
1638     {
1639         bool b_has_more = false;
1640         bool b_reject;
1641         DecoderWaitUnblock( p_dec, &b_reject );
1642
1643         if( p_owner->b_buffering )
1644         {
1645             vlc_mutex_unlock( &p_owner->lock );
1646             return;
1647         }
1648
1649         /* */
1650         if( p_owner->buffer.p_block )
1651         {
1652             p_sout_block = p_owner->buffer.p_block;
1653
1654             p_owner->buffer.p_block = p_sout_block->p_next;
1655             p_owner->buffer.i_count--;
1656
1657             b_has_more = p_owner->buffer.p_block != NULL;
1658             if( !b_has_more )
1659                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1660         }
1661         p_sout_block->p_next = NULL;
1662
1663         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1664                       &p_sout_block->i_length,
1665                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1666
1667         vlc_mutex_unlock( &p_owner->lock );
1668
1669         if( !b_reject )
1670             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1671         else
1672             block_Release( p_sout_block );
1673
1674         if( !b_has_more )
1675             break;
1676         vlc_mutex_lock( &p_owner->lock );
1677         if( !p_owner->buffer.p_block )
1678         {
1679             vlc_mutex_unlock( &p_owner->lock );
1680             break;
1681         }
1682     }
1683 }
1684
1685 /* */
1686 static void DecoderFlushBuffering( decoder_t *p_dec )
1687 {
1688     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1689
1690     vlc_assert_locked( &p_owner->lock );
1691
1692     while( p_owner->buffer.p_picture )
1693     {
1694         picture_t *p_picture = p_owner->buffer.p_picture;
1695
1696         p_owner->buffer.p_picture = p_picture->p_next;
1697         p_owner->buffer.i_count--;
1698
1699         if( p_owner->p_vout )
1700         {
1701             vout_ReleasePicture( p_owner->p_vout, p_picture );
1702         }
1703
1704         if( !p_owner->buffer.p_picture )
1705             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1706     }
1707     while( p_owner->buffer.p_audio )
1708     {
1709         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1710
1711         p_owner->buffer.p_audio = p_audio->p_next;
1712         p_owner->buffer.i_count--;
1713
1714         aout_BufferFree( p_audio );
1715
1716         if( !p_owner->buffer.p_audio )
1717             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1718     }
1719     while( p_owner->buffer.p_subpic )
1720     {
1721         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1722
1723         p_owner->buffer.p_subpic = p_subpic->p_next;
1724         p_owner->buffer.i_count--;
1725
1726         subpicture_Delete( p_subpic );
1727
1728         if( !p_owner->buffer.p_subpic )
1729             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1730     }
1731     if( p_owner->buffer.p_block )
1732     {
1733         block_ChainRelease( p_owner->buffer.p_block );
1734
1735         p_owner->buffer.i_count = 0;
1736         p_owner->buffer.p_block = NULL;
1737         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1738     }
1739 }
1740
1741 /* This function process a block for sout
1742  */
1743 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1744 {
1745     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1746     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1747     block_t *p_sout_block;
1748
1749     while( ( p_sout_block =
1750                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1751     {
1752         if( !p_owner->p_sout_input )
1753         {
1754             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1755
1756             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1757             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1758             if( p_dec->fmt_in.psz_language )
1759             {
1760                 free( p_owner->sout.psz_language );
1761                 p_owner->sout.psz_language =
1762                     strdup( p_dec->fmt_in.psz_language );
1763             }
1764
1765             p_owner->p_sout_input =
1766                 sout_InputNew( p_owner->p_sout,
1767                                &p_owner->sout );
1768
1769             if( p_owner->p_sout_input == NULL )
1770             {
1771                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1772                          (char *)&p_owner->sout.i_codec );
1773                 p_dec->b_error = true;
1774
1775                 while( p_sout_block )
1776                 {
1777                     block_t *p_next = p_sout_block->p_next;
1778                     block_Release( p_sout_block );
1779                     p_sout_block = p_next;
1780                 }
1781                 break;
1782             }
1783         }
1784
1785         while( p_sout_block )
1786         {
1787             block_t *p_next = p_sout_block->p_next;
1788
1789             p_sout_block->p_next = NULL;
1790
1791             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1792
1793             p_sout_block = p_next;
1794         }
1795     }
1796 }
1797
1798 /* This function process a video block
1799  */
1800 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1801 {
1802     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1803
1804     if( p_owner->p_packetizer )
1805     {
1806         block_t *p_packetized_block;
1807         decoder_t *p_packetizer = p_owner->p_packetizer;
1808
1809         while( (p_packetized_block =
1810                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1811         {
1812             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1813             {
1814                 es_format_Clean( &p_dec->fmt_in );
1815                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1816             }
1817             if( p_packetizer->pf_get_cc )
1818                 DecoderGetCc( p_dec, p_packetizer );
1819
1820             while( p_packetized_block )
1821             {
1822                 block_t *p_next = p_packetized_block->p_next;
1823                 p_packetized_block->p_next = NULL;
1824
1825                 DecoderDecodeVideo( p_dec, p_packetized_block );
1826
1827                 p_packetized_block = p_next;
1828             }
1829         }
1830         /* The packetizer does not output a block that tell the decoder to flush
1831          * do it ourself */
1832         if( b_flush )
1833         {
1834             block_t *p_null = DecoderBlockFlushNew();
1835             if( p_null )
1836                 DecoderDecodeVideo( p_dec, p_null );
1837         }
1838     }
1839     else if( p_block )
1840     {
1841         DecoderDecodeVideo( p_dec, p_block );
1842     }
1843
1844     if( b_flush && p_owner->p_vout )
1845         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1846 }
1847
1848 /* This function process a audio block
1849  */
1850 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1851 {
1852     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1853
1854     if( p_owner->p_packetizer )
1855     {
1856         block_t *p_packetized_block;
1857         decoder_t *p_packetizer = p_owner->p_packetizer;
1858
1859         while( (p_packetized_block =
1860                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1861         {
1862             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1863             {
1864                 es_format_Clean( &p_dec->fmt_in );
1865                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1866             }
1867
1868             while( p_packetized_block )
1869             {
1870                 block_t *p_next = p_packetized_block->p_next;
1871                 p_packetized_block->p_next = NULL;
1872
1873                 DecoderDecodeAudio( p_dec, p_packetized_block );
1874
1875                 p_packetized_block = p_next;
1876             }
1877         }
1878         /* The packetizer does not output a block that tell the decoder to flush
1879          * do it ourself */
1880         if( b_flush )
1881         {
1882             block_t *p_null = DecoderBlockFlushNew();
1883             if( p_null )
1884                 DecoderDecodeAudio( p_dec, p_null );
1885         }
1886     }
1887     else if( p_block )
1888     {
1889         DecoderDecodeAudio( p_dec, p_block );
1890     }
1891
1892     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1893         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1894 }
1895
1896 /* This function process a subtitle block
1897  */
1898 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1899 {
1900     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1901     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1902
1903     input_thread_t *p_input = p_owner->p_input;
1904     vout_thread_t *p_vout;
1905     subpicture_t *p_spu;
1906
1907     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1908     {
1909         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1910         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1911         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1912
1913         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1914         if( p_vout && p_owner->p_spu_vout == p_vout )
1915         {
1916             /* Preroll does not work very well with subtitle */
1917             if( p_spu->i_start > VLC_TS_INVALID &&
1918                 p_spu->i_start < p_owner->i_preroll_end &&
1919                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1920             {
1921                 subpicture_Delete( p_spu );
1922             }
1923             else
1924             {
1925                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1926             }
1927         }
1928         else
1929         {
1930             subpicture_Delete( p_spu );
1931         }
1932         if( p_vout )
1933             vlc_object_release( p_vout );
1934     }
1935
1936     if( b_flush && p_owner->p_spu_vout )
1937     {
1938         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1939
1940         if( p_vout && p_owner->p_spu_vout == p_vout )
1941             vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1942
1943         if( p_vout )
1944             vlc_object_release( p_vout );
1945     }
1946 }
1947
1948 /* */
1949 static void DecoderProcessOnFlush( decoder_t *p_dec )
1950 {
1951     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1952
1953     vlc_mutex_lock( &p_owner->lock );
1954     DecoderFlushBuffering( p_dec );
1955
1956     if( p_owner->b_flushing )
1957     {
1958         p_owner->b_flushing = false;
1959         vlc_cond_signal( &p_owner->wait_acknowledge );
1960     }
1961     vlc_mutex_unlock( &p_owner->lock );
1962 }
1963
1964 /**
1965  * Decode a block
1966  *
1967  * \param p_dec the decoder object
1968  * \param p_block the block to decode
1969  * \return VLC_SUCCESS or an error code
1970  */
1971 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1972 {
1973     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1974     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1975
1976     if( p_block && p_block->i_buffer <= 0 )
1977     {
1978         assert( !b_flush_request );
1979         block_Release( p_block );
1980         return;
1981     }
1982
1983 #ifdef ENABLE_SOUT
1984     if( p_owner->b_packetizer )
1985     {
1986         if( p_block )
1987             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1988
1989         DecoderProcessSout( p_dec, p_block );
1990     }
1991     else
1992 #endif
1993     {
1994         bool b_flush = false;
1995
1996         if( p_block )
1997         {
1998             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1999             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
2000
2001             b_flush = !b_flushing && b_flush_request;
2002
2003             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2004         }
2005
2006         if( p_dec->fmt_out.i_cat == AUDIO_ES )
2007         {
2008             DecoderProcessAudio( p_dec, p_block, b_flush );
2009         }
2010         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
2011         {
2012             DecoderProcessVideo( p_dec, p_block, b_flush );
2013         }
2014         else if( p_dec->fmt_out.i_cat == SPU_ES )
2015         {
2016             DecoderProcessSpu( p_dec, p_block, b_flush );
2017         }
2018         else
2019         {
2020             msg_Err( p_dec, "unknown ES format" );
2021             p_dec->b_error = true;
2022         }
2023     }
2024
2025     /* */
2026     if( b_flush_request )
2027         DecoderProcessOnFlush( p_dec );
2028 }
2029
2030 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2031 {
2032     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2033
2034     /* */
2035     if( p_block )
2036         block_Release( p_block );
2037
2038     if( b_flush_request )
2039         DecoderProcessOnFlush( p_dec );
2040 }
2041
2042
2043 /**
2044  * Destroys a decoder object
2045  *
2046  * \param p_dec the decoder object
2047  * \return nothing
2048  */
2049 static void DeleteDecoder( decoder_t * p_dec )
2050 {
2051     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2052
2053     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2054              (char*)&p_dec->fmt_in.i_codec,
2055              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2056
2057     /* Free all packets still in the decoder fifo. */
2058     block_FifoEmpty( p_owner->p_fifo );
2059     block_FifoRelease( p_owner->p_fifo );
2060
2061     /* */
2062     vlc_mutex_lock( &p_owner->lock );
2063     DecoderFlushBuffering( p_dec );
2064     vlc_mutex_unlock( &p_owner->lock );
2065
2066     /* Cleanup */
2067     if( p_owner->p_aout_input )
2068         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2069     if( p_owner->p_aout )
2070     {
2071         input_resource_RequestAout( p_owner->p_input->p->p_resource,
2072                                      p_owner->p_aout );
2073         input_SendEventAout( p_owner->p_input );
2074         p_owner->p_aout = NULL;
2075     }
2076     if( p_owner->p_vout )
2077     {
2078         /* Hack to make sure all the the pictures are freed by the decoder
2079          * and that the vout is not paused anymore */
2080         vout_Reset( p_owner->p_vout );
2081
2082         /* */
2083         input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, 0, true );
2084         input_SendEventVout( p_owner->p_input );
2085     }
2086
2087 #ifdef ENABLE_SOUT
2088     if( p_owner->p_sout_input )
2089     {
2090         sout_InputDelete( p_owner->p_sout_input );
2091         es_format_Clean( &p_owner->sout );
2092     }
2093 #endif
2094
2095     if( p_dec->fmt_out.i_cat == SPU_ES )
2096     {
2097         vout_thread_t *p_vout;
2098
2099         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2100         if( p_vout )
2101         {
2102             if( p_owner->p_spu_vout == p_vout )
2103                 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2104             vlc_object_release( p_vout );
2105         }
2106     }
2107
2108     es_format_Clean( &p_dec->fmt_in );
2109     es_format_Clean( &p_dec->fmt_out );
2110     if( p_dec->p_description )
2111         vlc_meta_Delete( p_dec->p_description );
2112     es_format_Clean( &p_owner->fmt_description );
2113     if( p_owner->p_description )
2114         vlc_meta_Delete( p_owner->p_description );
2115
2116     if( p_owner->p_packetizer )
2117     {
2118         module_unneed( p_owner->p_packetizer,
2119                        p_owner->p_packetizer->p_module );
2120         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2121         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2122         if( p_owner->p_packetizer->p_description )
2123             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2124         vlc_object_release( p_owner->p_packetizer );
2125     }
2126
2127     vlc_cond_destroy( &p_owner->wait_acknowledge );
2128     vlc_cond_destroy( &p_owner->wait_request );
2129     vlc_mutex_destroy( &p_owner->lock );
2130
2131     vlc_object_release( p_dec );
2132
2133     free( p_owner );
2134 }
2135
2136 /*****************************************************************************
2137  * Buffers allocation callbacks for the decoders
2138  *****************************************************************************/
2139 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2140 {
2141     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2142
2143     vlc_assert_locked( &p_owner->lock );
2144
2145     p_owner->b_fmt_description = true;
2146
2147     /* Copy es_format */
2148     es_format_Clean( &p_owner->fmt_description );
2149     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2150
2151     /* Move p_description */
2152     if( p_owner->p_description && p_dec->p_description )
2153         vlc_meta_Delete( p_owner->p_description );
2154     p_owner->p_description = p_dec->p_description;
2155     p_dec->p_description = NULL;
2156 }
2157 static vout_thread_t *aout_request_vout( void *p_private,
2158                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2159 {
2160     decoder_t *p_dec = p_private;
2161     input_thread_t *p_input = p_dec->p_owner->p_input;
2162
2163     p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, 1, b_recyle );
2164     input_SendEventVout( p_input );
2165
2166     return p_vout;
2167 }
2168
2169 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2170 {
2171     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2172     aout_buffer_t *p_buffer;
2173
2174     if( p_owner->p_aout_input != NULL &&
2175         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2176           p_dec->fmt_out.audio.i_original_channels !=
2177               p_owner->audio.i_original_channels ||
2178           p_dec->fmt_out.audio.i_bytes_per_frame !=
2179               p_owner->audio.i_bytes_per_frame ) )
2180     {
2181         aout_input_t *p_aout_input = p_owner->p_aout_input;
2182
2183         /* Parameters changed, restart the aout */
2184         vlc_mutex_lock( &p_owner->lock );
2185
2186         DecoderFlushBuffering( p_dec );
2187
2188         p_owner->p_aout_input = NULL;
2189         aout_DecDelete( p_owner->p_aout, p_aout_input );
2190
2191         vlc_mutex_unlock( &p_owner->lock );
2192     }
2193
2194     if( p_owner->p_aout_input == NULL )
2195     {
2196         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2197         audio_sample_format_t format;
2198         aout_input_t *p_aout_input;
2199         aout_instance_t *p_aout;
2200         aout_request_vout_t request_vout;
2201
2202         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2203         p_owner->audio = p_dec->fmt_out.audio;
2204
2205         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2206         if( i_force_dolby &&
2207             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2208                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2209         {
2210             if( i_force_dolby == 1 )
2211             {
2212                 format.i_original_channels = format.i_original_channels |
2213                                              AOUT_CHAN_DOLBYSTEREO;
2214             }
2215             else /* i_force_dolby == 2 */
2216             {
2217                 format.i_original_channels = format.i_original_channels &
2218                                              ~AOUT_CHAN_DOLBYSTEREO;
2219             }
2220         }
2221
2222         request_vout.pf_request_vout = aout_request_vout;
2223         request_vout.p_private = p_dec;
2224
2225         p_aout = p_owner->p_aout;
2226         if( !p_aout )
2227             p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2228         p_aout_input = aout_DecNew( p_dec, &p_aout,
2229                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2230
2231         vlc_mutex_lock( &p_owner->lock );
2232
2233         p_owner->p_aout = p_aout;
2234         p_owner->p_aout_input = p_aout_input;
2235         DecoderUpdateFormatLocked( p_dec );
2236
2237         vlc_mutex_unlock( &p_owner->lock );
2238
2239         input_SendEventAout( p_owner->p_input );
2240
2241         if( p_owner->p_aout_input == NULL )
2242         {
2243             msg_Err( p_dec, "failed to create audio output" );
2244             p_dec->b_error = true;
2245             return NULL;
2246         }
2247         p_dec->fmt_out.audio.i_bytes_per_frame =
2248             p_owner->audio.i_bytes_per_frame;
2249     }
2250
2251     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2252
2253     return p_buffer;
2254 }
2255
2256 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2257 {
2258     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2259
2260     aout_DecDeleteBuffer( p_owner->p_aout,
2261                           p_owner->p_aout_input, p_buffer );
2262 }
2263
2264 static picture_t *vout_new_buffer( decoder_t *p_dec )
2265 {
2266     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2267
2268     if( p_owner->p_vout == NULL ||
2269         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2270         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2271         p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2272         p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2273         p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset  ||
2274         p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset  ||
2275         p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2276         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2277         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2278     {
2279         vout_thread_t *p_vout;
2280
2281         if( !p_dec->fmt_out.video.i_width ||
2282             !p_dec->fmt_out.video.i_height )
2283         {
2284             /* Can't create a new vout without display size */
2285             return NULL;
2286         }
2287
2288         video_format_t fmt = p_dec->fmt_out.video;
2289         fmt.i_chroma = p_dec->fmt_out.i_codec;
2290         p_owner->video = fmt;
2291
2292         if( !fmt.i_visible_width || !fmt.i_visible_height )
2293         {
2294             if( p_dec->fmt_in.video.i_visible_width &&
2295                 p_dec->fmt_in.video.i_visible_height )
2296             {
2297                 fmt.i_visible_width  = p_dec->fmt_in.video.i_visible_width;
2298                 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2299             }
2300             else
2301             {
2302                 fmt.i_visible_width  = fmt.i_width;
2303                 fmt.i_visible_height = fmt.i_height;
2304             }
2305         }
2306
2307         if( fmt.i_visible_height == 1088 &&
2308             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2309         {
2310             fmt.i_visible_height = 1080;
2311             if( !(fmt.i_sar_num % 136))
2312             {
2313                 fmt.i_sar_num *= 135;
2314                 fmt.i_sar_den *= 136;
2315             }
2316             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2317         }
2318
2319         if( !fmt.i_sar_num || !fmt.i_sar_den )
2320         {
2321             fmt.i_sar_num = 1;
2322             fmt.i_sar_den = 1;
2323         }
2324
2325         vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2326                      fmt.i_sar_num, fmt.i_sar_den, 50000 );
2327
2328         vlc_mutex_lock( &p_owner->lock );
2329
2330         DecoderFlushBuffering( p_dec );
2331
2332         p_vout = p_owner->p_vout;
2333         p_owner->p_vout = NULL;
2334         vlc_mutex_unlock( &p_owner->lock );
2335
2336         unsigned dpb_size;
2337         switch( p_dec->fmt_in.i_codec )
2338         {
2339         case VLC_CODEC_H264:
2340         case VLC_CODEC_DIRAC: /* FIXME valid ? */
2341             dpb_size = 18;
2342             break;
2343         case VLC_CODEC_VP5:
2344         case VLC_CODEC_VP6:
2345         case VLC_CODEC_VP6F:
2346         case VLC_CODEC_VP8:
2347             dpb_size = 3;
2348             break;
2349         default:
2350             dpb_size = 2;
2351             break;
2352         }
2353         p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2354                                              p_vout, &fmt,
2355                                              dpb_size + 1 + DECODER_MAX_BUFFERING_COUNT,
2356                                              true );
2357         vlc_mutex_lock( &p_owner->lock );
2358         p_owner->p_vout = p_vout;
2359
2360         DecoderUpdateFormatLocked( p_dec );
2361
2362         vlc_mutex_unlock( &p_owner->lock );
2363
2364         input_SendEventVout( p_owner->p_input );
2365         if( p_vout == NULL )
2366         {
2367             msg_Err( p_dec, "failed to create video output" );
2368             p_dec->b_error = true;
2369             return NULL;
2370         }
2371     }
2372
2373     /* Get a new picture
2374      */
2375     for( ;; )
2376     {
2377         if( p_dec->b_die || p_dec->b_error )
2378             return NULL;
2379
2380         picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2381         if( p_picture )
2382             return p_picture;
2383
2384         if( DecoderIsFlushing( p_dec ) )
2385             return NULL;
2386
2387         /* */
2388         DecoderSignalBuffering( p_dec, true );
2389
2390         /* Check the decoder doesn't leak pictures */
2391         vout_FixLeaks( p_owner->p_vout );
2392
2393         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2394         msleep( VOUT_OUTMEM_SLEEP );
2395     }
2396 }
2397
2398 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2399 {
2400     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2401 }
2402
2403 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2404 {
2405     vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2406 }
2407
2408 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2409 {
2410     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2411 }
2412
2413 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2414                                      const subpicture_updater_t *p_updater )
2415 {
2416     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2417     vout_thread_t *p_vout = NULL;
2418     subpicture_t *p_subpic;
2419     int i_attempts = 30;
2420
2421     while( i_attempts-- )
2422     {
2423         if( p_dec->b_die || p_dec->b_error )
2424             break;
2425
2426         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2427         if( p_vout )
2428             break;
2429
2430         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2431     }
2432
2433     if( !p_vout )
2434     {
2435         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2436         return NULL;
2437     }
2438
2439     if( p_owner->p_spu_vout != p_vout )
2440     {
2441         vlc_mutex_lock( &p_owner->lock );
2442
2443         DecoderFlushBuffering( p_dec );
2444
2445         vlc_mutex_unlock( &p_owner->lock );
2446
2447         p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2448         p_owner->i_spu_order = 0;
2449         p_owner->p_spu_vout = p_vout;
2450     }
2451
2452     p_subpic = subpicture_New( p_updater );
2453     if( p_subpic )
2454     {
2455         p_subpic->i_channel = p_owner->i_spu_channel;
2456         p_subpic->i_order = p_owner->i_spu_order++;
2457         p_subpic->b_subtitle = true;
2458     }
2459
2460     vlc_object_release( p_vout );
2461
2462     return p_subpic;
2463 }
2464
2465 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2466 {
2467     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2468     vout_thread_t *p_vout = NULL;
2469
2470     p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2471     if( !p_vout || p_owner->p_spu_vout != p_vout )
2472     {
2473         if( p_vout )
2474             vlc_object_release( p_vout );
2475         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2476         return;
2477     }
2478
2479     subpicture_Delete( p_subpic );
2480
2481     vlc_object_release( p_vout );
2482 }
2483