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( vlc_object_t *, input_thread_t *,
  57                                  es_format_t *, bool, input_resource_t *,
  58                                  sout_instance_t *p_sout );
  59 static void       DeleteDecoder( decoder_t * );
  60
  61 static void      *DecoderThread( vlc_object_t * );
  62 static void       DecoderProcess( decoder_t *, block_t * );
  63 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
  64 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
  65 static void       DecoderFlush( decoder_t * );
  66 static void       DecoderSignalBuffering( decoder_t *, bool );
  67 static void       DecoderFlushBuffering( decoder_t * );
  68
  69 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
  70
  71 /* Buffers allocation callbacks for the decoders */
  72 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  73 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  74
  75 static picture_t *vout_new_buffer( decoder_t * );
  76 static void vout_del_buffer( decoder_t *, picture_t * );
  77 static void vout_link_picture( decoder_t *, picture_t * );
  78 static void vout_unlink_picture( decoder_t *, picture_t * );
  79
  80 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
  81 static void spu_del_buffer( decoder_t *, subpicture_t * );
  82
  83 struct decoder_owner_sys_t
  84 {
  85     int64_t         i_preroll_end;
  86
  87     input_thread_t  *p_input;
  88     input_resource_t*p_resource;
  89     input_clock_t   *p_clock;
  90     int             i_last_rate;
  91
  92     vout_thread_t   *p_spu_vout;
  93     int              i_spu_channel;
  94     int64_t          i_spu_order;
  95
  96     sout_instance_t         *p_sout;
  97     sout_packetizer_input_t *p_sout_input;
  98
  99     /* Some decoders require already packetized data (ie. not truncated) */
 100     decoder_t *p_packetizer;
 101     bool b_packetizer;
 102
 103     /* Current format in use by the output */
 104     video_format_t video;
 105     audio_format_t audio;
 106     es_format_t    sout;
 107
 108     /* */
 109     bool           b_fmt_description;
 110     es_format_t    fmt_description;
 111     vlc_meta_t     *p_description;
 112
 113     /* fifo */
 114     block_fifo_t *p_fifo;
 115
 116     /* Lock for communication with decoder thread */
 117     vlc_mutex_t lock;
 118     vlc_cond_t  wait_request;
 119     vlc_cond_t  wait_acknowledge;
 120
 121     /* -- These variables need locking on write(only) -- */
 122     aout_instance_t *p_aout;
 123     aout_input_t    *p_aout_input;
 124
 125     vout_thread_t   *p_vout;
 126
 127     /* -- Theses variables need locking on read *and* write -- */
 128     /* */
 129     /* Pause */
 130     bool b_paused;
 131     struct
 132     {
 133         mtime_t i_date;
 134         int     i_ignore;
 135     } pause;
 136
 137     /* Buffering */
 138     bool b_buffering;
 139     struct
 140     {
 141         bool b_first;
 142         bool b_full;
 143         int  i_count;
 144
 145         picture_t     *p_picture;
 146         picture_t     **pp_picture_next;
 147
 148         subpicture_t  *p_subpic;
 149         subpicture_t  **pp_subpic_next;
 150
 151         aout_buffer_t *p_audio;
 152         aout_buffer_t **pp_audio_next;
 153
 154         block_t       *p_block;
 155         block_t       **pp_block_next;
 156     } buffer;
 157
 158     /* Flushing */
 159     bool b_flushing;
 160
 161     /* CC */
 162     struct
 163     {
 164         bool b_supported;
 165         bool pb_present[4];
 166         decoder_t *pp_decoder[4];
 167     } cc;
 168
 169     /* Delay */
 170     mtime_t i_ts_delay;
 171 };
 172
 173 #define DECODER_MAX_BUFFERING_COUNT (4)
 174 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
 175 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
 176
 177 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
 178  * a bogus PTS and won't be displayed */
 179 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
 180
 181 /* */
 182 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
 183
 184
 185 /*****************************************************************************
 186  * Public functions
 187  *****************************************************************************/
 188 picture_t *decoder_NewPicture( decoder_t *p_decoder )
 189 {
 190     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
 191     if( !p_picture )
 192         msg_Warn( p_decoder, "can't get output picture" );
 193     return p_picture;
 194 }
 195 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
 196 {
 197     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
 198 }
 199 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 200 {
 201     p_decoder->pf_picture_link( p_decoder, p_picture );
 202 }
 203 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 204 {
 205     p_decoder->pf_picture_unlink( p_decoder, p_picture );
 206 }
 207
 208 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
 209 {
 210     if( !p_decoder->pf_aout_buffer_new )
 211         return NULL;
 212     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
 213 }
 214 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
 215 {
 216     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
 217 }
 218
 219 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
 220                                      const subpicture_updater_t *p_dyn )
 221 {
 222     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
 223     if( !p_subpicture )
 224         msg_Warn( p_decoder, "can't get output subpicture" );
 225     return p_subpicture;
 226 }
 227
 228 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
 229 {
 230     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
 231 }
 232
 233 /* decoder_GetInputAttachments:
 234  */
 235 int decoder_GetInputAttachments( decoder_t *p_dec,
 236                                  input_attachment_t ***ppp_attachment,
 237                                  int *pi_attachment )
 238 {
 239     if( !p_dec->pf_get_attachments )
 240         return VLC_EGENERIC;
 241
 242     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
 243 }
 244 /* decoder_GetDisplayDate:
 245  */
 246 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 247 {
 248     if( !p_dec->pf_get_display_date )
 249         return VLC_TS_INVALID;
 250
 251     return p_dec->pf_get_display_date( p_dec, i_ts );
 252 }
 253 /* decoder_GetDisplayRate:
 254  */
 255 int decoder_GetDisplayRate( decoder_t *p_dec )
 256 {
 257     if( !p_dec->pf_get_display_rate )
 258         return INPUT_RATE_DEFAULT;
 259
 260     return p_dec->pf_get_display_rate( p_dec );
 261 }
 262
 263 /* TODO: pass p_sout through p_resource? -- Courmisch */
 264 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
 265                                es_format_t *fmt, input_clock_t *p_clock,
 266                                input_resource_t *p_resource,
 267                                sout_instance_t *p_sout  )
 268 {
 269     decoder_t *p_dec = NULL;
 270     const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
 271     int i_priority;
 272
 273     /* Create the decoder configuration structure */
 274     p_dec = CreateDecoder( p_parent, p_input, fmt,
 275                            p_sout != NULL, p_resource, p_sout );
 276     if( p_dec == NULL )
 277     {
 278         msg_Err( p_parent, "could not create %s", psz_type );
 279         dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
 280                       _("VLC could not open the %s module."),
 281                       vlc_gettext( psz_type ) );
 282         return NULL;
 283     }
 284
 285     if( !p_dec->p_module )
 286     {
 287         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 288
 289         DeleteDecoder( p_dec );
 290         return NULL;
 291     }
 292
 293     p_dec->p_owner->p_clock = p_clock;
 294     assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
 295
 296     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 297         i_priority = VLC_THREAD_PRIORITY_AUDIO;
 298     else
 299         i_priority = VLC_THREAD_PRIORITY_VIDEO;
 300
 301     /* Spawn the decoder thread */
 302     if( vlc_thread_create( p_dec, DecoderThread, i_priority ) )
 303     {
 304         msg_Err( p_dec, "cannot spawn decoder thread" );
 305         module_unneed( p_dec, p_dec->p_module );
 306         DeleteDecoder( p_dec );
 307         return NULL;
 308     }
 309
 310     return p_dec;
 311 }
 312
 313
 314 /**
 315  * Spawns a new decoder thread from the input thread
 316  *
 317  * \param p_input the input thread
 318  * \param p_es the es descriptor
 319  * \return the spawned decoder object
 320  */
 321 decoder_t *input_DecoderNew( input_thread_t *p_input,
 322                              es_format_t *fmt, input_clock_t *p_clock,
 323                              sout_instance_t *p_sout  )
 324 {
 325     return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
 326                         p_input->p->p_resource, p_sout );
 327 }
 328
 329 /**
 330  * Spawn a decoder thread outside of the input thread.
 331  */
 332 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, es_format_t *fmt,
 333                                 input_resource_t *p_resource )
 334 {
 335     return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
 336 }
 337
 338
 339 /**
 340  * Kills a decoder thread and waits until it's finished
 341  *
 342  * \param p_input the input thread
 343  * \param p_es the es descriptor
 344  * \return nothing
 345  */
 346 void input_DecoderDelete( decoder_t *p_dec )
 347 {
 348     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 349
 350     vlc_object_kill( p_dec );
 351
 352     /* Make sure we aren't paused/buffering/waiting anymore */
 353     vlc_mutex_lock( &p_owner->lock );
 354     const bool b_was_paused = p_owner->b_paused;
 355     p_owner->b_paused = false;
 356     p_owner->b_buffering = false;
 357     p_owner->b_flushing = true;
 358     vlc_cond_signal( &p_owner->wait_request );
 359     vlc_mutex_unlock( &p_owner->lock );
 360
 361     vlc_thread_join( p_dec );
 362     p_owner->b_paused = b_was_paused;
 363
 364     module_unneed( p_dec, p_dec->p_module );
 365
 366     /* */
 367     if( p_dec->p_owner->cc.b_supported )
 368     {
 369         int i;
 370         for( i = 0; i < 4; i++ )
 371             input_DecoderSetCcState( p_dec, false, i );
 372     }
 373
 374     /* Delete decoder */
 375     DeleteDecoder( p_dec );
 376 }
 377
 378 /**
 379  * Put a block_t in the decoder's fifo.
 380  * Thread-safe w.r.t. the decoder. May be a cancellation point.
 381  *
 382  * \param p_dec the decoder object
 383  * \param p_block the data block
 384  */
 385 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
 386 {
 387     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 388
 389     if( b_do_pace )
 390     {
 391         /* The fifo is not consummed when buffering and so will
 392          * deadlock vlc.
 393          * There is no need to lock as b_buffering is never modify
 394          * inside decoder thread. */
 395         if( !p_owner->b_buffering )
 396             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
 397     }
 398 #ifdef __arm__
 399     else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
 400 #else
 401     else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
 402 #endif
 403     {
 404         /* FIXME: ideally we would check the time amount of data
 405          * in the FIFO instead of its size. */
 406         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 407                   "consumed quickly enough), resetting fifo!" );
 408         block_FifoEmpty( p_owner->p_fifo );
 409     }
 410
 411     block_FifoPut( p_owner->p_fifo, p_block );
 412 }
 413
 414 bool input_DecoderIsEmpty( decoder_t * p_dec )
 415 {
 416     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 417     assert( !p_owner->b_buffering );
 418
 419     bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
 420     if( b_empty )
 421     {
 422         vlc_mutex_lock( &p_owner->lock );
 423         /* TODO subtitles support */
 424         if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
 425             b_empty = vout_IsEmpty( p_owner->p_vout );
 426         else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout )
 427             b_empty = aout_InputIsEmpty( p_owner->p_aout, p_owner->p_aout_input );
 428         vlc_mutex_unlock( &p_owner->lock );
 429     }
 430     return b_empty;
 431 }
 432
 433 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
 434 {
 435     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 436     int i;
 437
 438     vlc_mutex_lock( &p_owner->lock );
 439     for( i = 0; i < 4; i++ )
 440         pb_present[i] =  p_owner->cc.pb_present[i];
 441     vlc_mutex_unlock( &p_owner->lock );
 442 }
 443 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
 444 {
 445     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 446
 447     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
 448
 449     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 450         return VLC_EGENERIC;
 451
 452     if( b_decode )
 453     {
 454         static const vlc_fourcc_t fcc[4] = {
 455             VLC_FOURCC('c', 'c', '1', ' '),
 456             VLC_FOURCC('c', 'c', '2', ' '),
 457             VLC_FOURCC('c', 'c', '3', ' '),
 458             VLC_FOURCC('c', 'c', '4', ' '),
 459         };
 460         decoder_t *p_cc;
 461         es_format_t fmt;
 462
 463         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
 464         p_cc = CreateDecoder( VLC_OBJECT(p_dec), p_owner->p_input, &fmt,
 465                               false, p_owner->p_resource, p_owner->p_sout );
 466         if( !p_cc )
 467         {
 468             msg_Err( p_dec, "could not create decoder" );
 469             dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
 470                           _("VLC could not open the decoder module.") );
 471             return VLC_EGENERIC;
 472         }
 473         else if( !p_cc->p_module )
 474         {
 475             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
 476             DeleteDecoder( p_cc );
 477             return VLC_EGENERIC;
 478         }
 479         p_cc->p_owner->p_clock = p_owner->p_clock;
 480
 481         vlc_mutex_lock( &p_owner->lock );
 482         p_owner->cc.pp_decoder[i_channel] = p_cc;
 483         vlc_mutex_unlock( &p_owner->lock );
 484     }
 485     else
 486     {
 487         decoder_t *p_cc;
 488
 489         vlc_mutex_lock( &p_owner->lock );
 490         p_cc = p_owner->cc.pp_decoder[i_channel];
 491         p_owner->cc.pp_decoder[i_channel] = NULL;
 492         vlc_mutex_unlock( &p_owner->lock );
 493
 494         if( p_cc )
 495         {
 496             vlc_object_kill( p_cc );
 497             module_unneed( p_cc, p_cc->p_module );
 498             DeleteDecoder( p_cc );
 499         }
 500     }
 501     return VLC_SUCCESS;
 502 }
 503 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
 504 {
 505     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 506
 507     *pb_decode = false;
 508     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 509         return VLC_EGENERIC;
 510
 511     vlc_mutex_lock( &p_owner->lock );
 512     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
 513     vlc_mutex_unlock( &p_owner->lock );
 514     return VLC_EGENERIC;
 515 }
 516
 517 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 518 {
 519     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 520
 521     vlc_mutex_lock( &p_owner->lock );
 522
 523     assert( !p_owner->b_paused || !b_paused );
 524
 525     p_owner->b_paused = b_paused;
 526     p_owner->pause.i_date = i_date;
 527     p_owner->pause.i_ignore = 0;
 528     vlc_cond_signal( &p_owner->wait_request );
 529
 530     DecoderOutputChangePause( p_dec, b_paused, i_date );
 531
 532     vlc_mutex_unlock( &p_owner->lock );
 533 }
 534
 535 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
 536 {
 537     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 538
 539     vlc_mutex_lock( &p_owner->lock );
 540     p_owner->i_ts_delay = i_delay;
 541     vlc_mutex_unlock( &p_owner->lock );
 542 }
 543
 544 void input_DecoderStartBuffering( decoder_t *p_dec )
 545 {
 546     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 547
 548     vlc_mutex_lock( &p_owner->lock );
 549
 550     DecoderFlush( p_dec );
 551
 552     p_owner->buffer.b_first = true;
 553     p_owner->buffer.b_full = false;
 554     p_owner->buffer.i_count = 0;
 555
 556     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
 557             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
 558
 559     p_owner->buffer.p_picture = NULL;
 560     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
 561
 562     p_owner->buffer.p_subpic = NULL;
 563     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
 564
 565     p_owner->buffer.p_audio = NULL;
 566     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
 567
 568     p_owner->buffer.p_block = NULL;
 569     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
 570
 571
 572     p_owner->b_buffering = true;
 573
 574     vlc_cond_signal( &p_owner->wait_request );
 575
 576     vlc_mutex_unlock( &p_owner->lock );
 577 }
 578
 579 void input_DecoderStopBuffering( decoder_t *p_dec )
 580 {
 581     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 582
 583     vlc_mutex_lock( &p_owner->lock );
 584
 585     p_owner->b_buffering = false;
 586
 587     vlc_cond_signal( &p_owner->wait_request );
 588
 589     vlc_mutex_unlock( &p_owner->lock );
 590 }
 591
 592 void input_DecoderWaitBuffering( decoder_t *p_dec )
 593 {
 594     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 595
 596     vlc_mutex_lock( &p_owner->lock );
 597
 598     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
 599     {
 600         block_FifoWake( p_owner->p_fifo );
 601         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 602     }
 603
 604     vlc_mutex_unlock( &p_owner->lock );
 605 }
 606
 607 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 608 {
 609     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 610
 611     *pi_duration = 0;
 612
 613     vlc_mutex_lock( &p_owner->lock );
 614     if( p_dec->fmt_out.i_cat == VIDEO_ES )
 615     {
 616         if( p_owner->b_paused && p_owner->p_vout )
 617         {
 618             vout_NextPicture( p_owner->p_vout, pi_duration );
 619             p_owner->pause.i_ignore++;
 620             vlc_cond_signal( &p_owner->wait_request );
 621         }
 622     }
 623     else
 624     {
 625         /* TODO subtitle should not be flushed */
 626         DecoderFlush( p_dec );
 627     }
 628     vlc_mutex_unlock( &p_owner->lock );
 629 }
 630
 631 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
 632 {
 633     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 634     bool b_changed;
 635
 636     vlc_mutex_lock( &p_owner->lock );
 637     b_changed = p_owner->b_fmt_description;
 638     if( b_changed )
 639     {
 640         if( p_fmt )
 641             es_format_Copy( p_fmt, &p_owner->fmt_description );
 642
 643         if( pp_meta )
 644         {
 645             *pp_meta = NULL;
 646             if( p_owner->p_description )
 647             {
 648                 *pp_meta = vlc_meta_New();
 649                 if( *pp_meta )
 650                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
 651             }
 652         }
 653         p_owner->b_fmt_description = false;
 654     }
 655     vlc_mutex_unlock( &p_owner->lock );
 656     return b_changed;
 657 }
 658
 659 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
 660 {
 661     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 662
 663     return block_FifoSize( p_owner->p_fifo );
 664 }
 665
 666 void input_DecoderGetObjects( decoder_t *p_dec,
 667                               vout_thread_t **pp_vout, aout_instance_t **pp_aout )
 668 {
 669     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 670
 671     vlc_mutex_lock( &p_owner->lock );
 672     if( pp_vout )
 673         *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
 674     if( pp_aout )
 675         *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
 676     vlc_mutex_unlock( &p_owner->lock );
 677 }
 678
 679 /*****************************************************************************
 680  * Internal functions
 681  *****************************************************************************/
 682 static int DecoderGetInputAttachments( decoder_t *p_dec,
 683                                        input_attachment_t ***ppp_attachment,
 684                                        int *pi_attachment )
 685 {
 686     input_thread_t *p_input = p_dec->p_owner->p_input;
 687
 688     if( unlikely(p_input == NULL) )
 689         return VLC_ENOOBJ;
 690     return input_Control( p_input, INPUT_GET_ATTACHMENTS,
 691                           ppp_attachment, pi_attachment );
 692 }
 693 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 694 {
 695     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 696
 697     vlc_mutex_lock( &p_owner->lock );
 698     if( p_owner->b_buffering || p_owner->b_paused )
 699         i_ts = VLC_TS_INVALID;
 700     vlc_mutex_unlock( &p_owner->lock );
 701
 702     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
 703         return i_ts;
 704
 705     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 706         return VLC_TS_INVALID;
 707
 708     return i_ts;
 709 }
 710 static int DecoderGetDisplayRate( decoder_t *p_dec )
 711 {
 712     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 713
 714     if( !p_owner->p_clock )
 715         return INPUT_RATE_DEFAULT;
 716     return input_clock_GetRate( p_owner->p_clock );
 717 }
 718
 719 /* */
 720 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 721 {
 722     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
 723              "VLC probably does not support this sound or video format.",
 724              (char*)&codec );
 725     dialog_Fatal( p_dec, _("No suitable decoder module"),
 726                  _("VLC does not support the audio or video format \"%4.4s\". "
 727                   "Unfortunately there is no way for you to fix this."),
 728                   (char*)&codec );
 729 }
 730
 731
 732 /**
 733  * Create a decoder object
 734  *
 735  * \param p_input the input thread
 736  * \param p_es the es descriptor
 737  * \param b_packetizer instead of a decoder
 738  * \return the decoder object
 739  */
 740 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
 741                                   input_thread_t *p_input,
 742                                   es_format_t *fmt, bool b_packetizer,
 743                                   input_resource_t *p_resource,
 744                                   sout_instance_t *p_sout )
 745 {
 746     decoder_t *p_dec;
 747     decoder_owner_sys_t *p_owner;
 748     es_format_t null_es_format;
 749
 750     p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), VLC_OBJECT_DECODER,
 751                                "decoder" );
 752     if( p_dec == NULL )
 753         return NULL;
 754
 755     p_dec->pf_decode_audio = NULL;
 756     p_dec->pf_decode_video = NULL;
 757     p_dec->pf_decode_sub = NULL;
 758     p_dec->pf_get_cc = NULL;
 759     p_dec->pf_packetize = NULL;
 760
 761     /* Initialize the decoder */
 762     p_dec->p_module = NULL;
 763
 764     memset( &null_es_format, 0, sizeof(es_format_t) );
 765     es_format_Copy( &p_dec->fmt_in, fmt );
 766     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 767
 768     p_dec->p_description = NULL;
 769
 770     /* Allocate our private structure for the decoder */
 771     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 772     if( unlikely(p_owner == NULL) )
 773     {
 774         vlc_object_release( p_dec );
 775         return NULL;
 776     }
 777     p_owner->i_preroll_end = VLC_TS_INVALID;
 778     p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 779     p_owner->p_input = p_input;
 780     p_owner->p_resource = p_resource;
 781     p_owner->p_aout = NULL;
 782     p_owner->p_aout_input = NULL;
 783     p_owner->p_vout = NULL;
 784     p_owner->p_spu_vout = NULL;
 785     p_owner->i_spu_channel = 0;
 786     p_owner->i_spu_order = 0;
 787     p_owner->p_sout = p_sout;
 788     p_owner->p_sout_input = NULL;
 789     p_owner->p_packetizer = NULL;
 790     p_owner->b_packetizer = b_packetizer;
 791
 792     /* decoder fifo */
 793     p_owner->p_fifo = block_FifoNew();
 794     if( unlikely(p_owner->p_fifo == NULL) )
 795     {
 796         free( p_owner );
 797         vlc_object_release( p_dec );
 798         return NULL;
 799     }
 800
 801     /* Set buffers allocation callbacks for the decoders */
 802     p_dec->pf_aout_buffer_new = aout_new_buffer;
 803     p_dec->pf_aout_buffer_del = aout_del_buffer;
 804     p_dec->pf_vout_buffer_new = vout_new_buffer;
 805     p_dec->pf_vout_buffer_del = vout_del_buffer;
 806     p_dec->pf_picture_link    = vout_link_picture;
 807     p_dec->pf_picture_unlink  = vout_unlink_picture;
 808     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 809     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 810     /* */
 811     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 812     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 813     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 814
 815     vlc_object_attach( p_dec, p_parent );
 816
 817     /* Find a suitable decoder/packetizer module */
 818     if( !b_packetizer )
 819         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 820     else
 821         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 822
 823     /* Check if decoder requires already packetized data */
 824     if( !b_packetizer &&
 825         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 826     {
 827         p_owner->p_packetizer =
 828             vlc_custom_create( p_dec, sizeof( decoder_t ),
 829                                VLC_OBJECT_DECODER, "packetizer" );
 830         if( p_owner->p_packetizer )
 831         {
 832             es_format_Copy( &p_owner->p_packetizer->fmt_in,
 833                             &p_dec->fmt_in );
 834
 835             es_format_Copy( &p_owner->p_packetizer->fmt_out,
 836                             &null_es_format );
 837
 838             vlc_object_attach( p_owner->p_packetizer, p_parent );
 839
 840             p_owner->p_packetizer->p_module =
 841                 module_need( p_owner->p_packetizer,
 842                              "packetizer", "$packetizer", false );
 843
 844             if( !p_owner->p_packetizer->p_module )
 845             {
 846                 es_format_Clean( &p_owner->p_packetizer->fmt_in );
 847                 vlc_object_release( p_owner->p_packetizer );
 848             }
 849         }
 850     }
 851
 852     /* Copy ourself the input replay gain */
 853     if( fmt->i_cat == AUDIO_ES )
 854     {
 855         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 856         {
 857             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 858             {
 859                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 860                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 861             }
 862             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 863             {
 864                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 865                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 866             }
 867         }
 868     }
 869
 870     /* */
 871     vlc_mutex_init( &p_owner->lock );
 872     vlc_cond_init( &p_owner->wait_request );
 873     vlc_cond_init( &p_owner->wait_acknowledge );
 874
 875     p_owner->b_fmt_description = false;
 876     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 877     p_owner->p_description = NULL;
 878
 879     p_owner->b_paused = false;
 880     p_owner->pause.i_date = VLC_TS_INVALID;
 881     p_owner->pause.i_ignore = 0;
 882
 883     p_owner->b_buffering = false;
 884     p_owner->buffer.b_first = true;
 885     p_owner->buffer.b_full = false;
 886     p_owner->buffer.i_count = 0;
 887     p_owner->buffer.p_picture = NULL;
 888     p_owner->buffer.p_subpic = NULL;
 889     p_owner->buffer.p_audio = NULL;
 890     p_owner->buffer.p_block = NULL;
 891
 892     p_owner->b_flushing = false;
 893
 894     /* */
 895     p_owner->cc.b_supported = false;
 896     if( !b_packetizer )
 897     {
 898         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 899             p_owner->cc.b_supported = true;
 900         if( p_dec->pf_get_cc )
 901             p_owner->cc.b_supported = true;
 902     }
 903
 904     for( unsigned i = 0; i < 4; i++ )
 905     {
 906         p_owner->cc.pb_present[i] = false;
 907         p_owner->cc.pp_decoder[i] = NULL;
 908     }
 909     p_owner->i_ts_delay = 0;
 910     return p_dec;
 911 }
 912
 913 /**
 914  * The decoding main loop
 915  *
 916  * \param p_dec the decoder
 917  */
 918 static void *DecoderThread( vlc_object_t *p_this )
 919 {
 920     decoder_t *p_dec = (decoder_t *)p_this;
 921     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 922
 923     /* The decoder's main loop */
 924     for( ;; )
 925     {
 926         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 927
 928         /* Make sure there is no cancellation point other than this one^^.
 929          * If you need one, be sure to push cleanup of p_block. */
 930         DecoderSignalBuffering( p_dec, p_block == NULL );
 931
 932         if( p_block )
 933         {
 934             int canc = vlc_savecancel();
 935
 936             if( p_dec->b_error )
 937                 DecoderError( p_dec, p_block );
 938             else
 939                 DecoderProcess( p_dec, p_block );
 940
 941             vlc_restorecancel( canc );
 942         }
 943     }
 944     return NULL;
 945 }
 946
 947 static block_t *DecoderBlockFlushNew()
 948 {
 949     block_t *p_null = block_Alloc( 128 );
 950     if( !p_null )
 951         return NULL;
 952
 953     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 954                        BLOCK_FLAG_CORRUPTED |
 955                        BLOCK_FLAG_CORE_FLUSH;
 956     memset( p_null->p_buffer, 0, p_null->i_buffer );
 957
 958     return p_null;
 959 }
 960
 961 static void DecoderFlush( decoder_t *p_dec )
 962 {
 963     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 964
 965     vlc_assert_locked( &p_owner->lock );
 966
 967     /* Empty the fifo */
 968     block_FifoEmpty( p_owner->p_fifo );
 969
 970     /* Monitor for flush end */
 971     p_owner->b_flushing = true;
 972     vlc_cond_signal( &p_owner->wait_request );
 973
 974     /* Send a special block */
 975     block_t *p_null = DecoderBlockFlushNew();
 976     if( !p_null )
 977         return;
 978     input_DecoderDecode( p_dec, p_null, false );
 979
 980     /* */
 981     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 982         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 983 }
 984
 985 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 986 {
 987     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 988
 989     vlc_mutex_lock( &p_owner->lock );
 990
 991     if( p_owner->b_buffering )
 992     {
 993         if( b_full )
 994             p_owner->buffer.b_full = true;
 995         vlc_cond_signal( &p_owner->wait_acknowledge );
 996     }
 997
 998     vlc_mutex_unlock( &p_owner->lock );
 999 }
1000
1001 static bool DecoderIsFlushing( decoder_t *p_dec )
1002 {
1003     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1004     bool b_flushing;
1005
1006     vlc_mutex_lock( &p_owner->lock );
1007
1008     b_flushing = p_owner->b_flushing;
1009
1010     vlc_mutex_unlock( &p_owner->lock );
1011
1012     return b_flushing;
1013 }
1014
1015 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
1016 {
1017     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1018
1019     vlc_assert_locked( &p_owner->lock );
1020
1021     while( !p_owner->b_flushing )
1022     {
1023         if( p_owner->b_paused )
1024         {
1025             if( p_owner->b_buffering && !p_owner->buffer.b_full )
1026                 break;
1027             if( p_owner->pause.i_ignore > 0 )
1028             {
1029                 p_owner->pause.i_ignore--;
1030                 break;
1031             }
1032         }
1033         else
1034         {
1035             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
1036                 break;
1037         }
1038         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1039     }
1040
1041     if( pb_reject )
1042         *pb_reject = p_owner->b_flushing;
1043 }
1044
1045 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1046 {
1047     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1048
1049     vlc_assert_locked( &p_owner->lock );
1050
1051     /* XXX only audio and video output have to be paused.
1052      * - for sout it is useless
1053      * - for subs, it is done by the vout
1054      */
1055     if( p_dec->fmt_out.i_cat == AUDIO_ES )
1056     {
1057         if( p_owner->p_aout )
1058             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1059                                  b_paused, i_date );
1060     }
1061     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1062     {
1063         if( p_owner->p_vout )
1064             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1065     }
1066 }
1067 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1068 {
1069     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1070         *pi_preroll = INT64_MAX;
1071     else if( p->i_dts > VLC_TS_INVALID )
1072         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1073     else if( p->i_pts > VLC_TS_INVALID )
1074         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1075 }
1076
1077 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1078 {
1079     mtime_t current_date = mdate();
1080
1081     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1082     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1083     {
1084         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1085          * for teletext streams. */
1086         return current_date + 400000;
1087     }
1088     return i_ts;
1089 }
1090
1091 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1092                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1093 {
1094     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1095     input_clock_t   *p_clock = p_owner->p_clock;
1096
1097     vlc_assert_locked( &p_owner->lock );
1098
1099     const mtime_t i_es_delay = p_owner->i_ts_delay;
1100
1101     if( p_clock )
1102     {
1103         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1104         int i_rate;
1105
1106         if( *pi_ts0 > VLC_TS_INVALID )
1107         {
1108             *pi_ts0 += i_es_delay;
1109             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1110                 *pi_ts1 += i_es_delay;
1111             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1112                 *pi_ts0 = VLC_TS_INVALID;
1113         }
1114         else
1115         {
1116             i_rate = input_clock_GetRate( p_clock );
1117         }
1118
1119         /* Do not create ephemere data because of rounding errors */
1120         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1121             *pi_ts1 += 1;
1122
1123         if( pi_duration )
1124             *pi_duration = ( *pi_duration * i_rate +
1125                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1126
1127         if( pi_rate )
1128             *pi_rate = i_rate;
1129
1130         if( b_telx )
1131         {
1132             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1133             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1134                 *pi_ts1 = *pi_ts0;
1135         }
1136     }
1137 }
1138
1139 /**
1140  * If *pb_reject, it does nothing, otherwise it waits for the given
1141  * deadline or a flush request (in which case it set *pi_reject to true.
1142  */
1143 static void DecoderWaitDate( decoder_t *p_dec,
1144                              bool *pb_reject, mtime_t i_deadline )
1145 {
1146     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1147
1148     if( *pb_reject || i_deadline < 0 )
1149         return;
1150
1151     for( ;; )
1152     {
1153         vlc_mutex_lock( &p_owner->lock );
1154         if( p_owner->b_flushing || p_dec->b_die )
1155         {
1156             *pb_reject = true;
1157             vlc_mutex_unlock( &p_owner->lock );
1158             break;
1159         }
1160         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1161                                         i_deadline );
1162         vlc_mutex_unlock( &p_owner->lock );
1163         if( i_ret )
1164             break;
1165     }
1166 }
1167
1168 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1169                               int *pi_played_sum, int *pi_lost_sum )
1170 {
1171     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1172     aout_instance_t *p_aout = p_owner->p_aout;
1173     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1174
1175     /* */
1176     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1177     {
1178         msg_Warn( p_dec, "non-dated audio buffer received" );
1179         *pi_lost_sum += 1;
1180         aout_BufferFree( p_audio );
1181         return;
1182     }
1183
1184     /* */
1185     vlc_mutex_lock( &p_owner->lock );
1186
1187     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1188     {
1189         p_audio->p_next = NULL;
1190
1191         *p_owner->buffer.pp_audio_next = p_audio;
1192         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1193
1194         p_owner->buffer.i_count++;
1195         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1196             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1197         {
1198             p_owner->buffer.b_full = true;
1199             vlc_cond_signal( &p_owner->wait_acknowledge );
1200         }
1201     }
1202
1203     for( ;; )
1204     {
1205         bool b_has_more = false;
1206         bool b_reject;
1207         DecoderWaitUnblock( p_dec, &b_reject );
1208
1209         if( p_owner->b_buffering )
1210         {
1211             vlc_mutex_unlock( &p_owner->lock );
1212             return;
1213         }
1214
1215         /* */
1216         if( p_owner->buffer.p_audio )
1217         {
1218             p_audio = p_owner->buffer.p_audio;
1219
1220             p_owner->buffer.p_audio = p_audio->p_next;
1221             p_owner->buffer.i_count--;
1222
1223             b_has_more = p_owner->buffer.p_audio != NULL;
1224             if( !b_has_more )
1225                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1226         }
1227
1228         /* */
1229         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1230         int i_rate = INPUT_RATE_DEFAULT;
1231
1232         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1233                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1234
1235         vlc_mutex_unlock( &p_owner->lock );
1236
1237         if( !p_aout || !p_aout_input ||
1238             p_audio->i_pts <= VLC_TS_INVALID ||
1239             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1240             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1241             b_reject = true;
1242
1243         DecoderWaitDate( p_dec, &b_reject,
1244                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1245
1246         if( !b_reject )
1247         {
1248             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1249                 *pi_played_sum += 1;
1250             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1251         }
1252         else
1253         {
1254             if( b_dated )
1255                 msg_Warn( p_dec, "received buffer in the future" );
1256             else
1257                 msg_Warn( p_dec, "non-dated audio buffer received" );
1258
1259             *pi_lost_sum += 1;
1260             aout_BufferFree( p_audio );
1261         }
1262
1263         if( !b_has_more )
1264             break;
1265
1266         vlc_mutex_lock( &p_owner->lock );
1267         if( !p_owner->buffer.p_audio )
1268         {
1269             vlc_mutex_unlock( &p_owner->lock );
1270             break;
1271         }
1272     }
1273 }
1274
1275 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1276 {
1277     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1278     aout_buffer_t   *p_aout_buf;
1279     int i_decoded = 0;
1280     int i_lost = 0;
1281     int i_played = 0;
1282
1283     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1284     {
1285         aout_instance_t *p_aout = p_owner->p_aout;
1286         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1287
1288         if( p_dec->b_die )
1289         {
1290             /* It prevent freezing VLC in case of broken decoder */
1291             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1292             if( p_block )
1293                 block_Release( p_block );
1294             break;
1295         }
1296         i_decoded++;
1297
1298         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1299             p_aout_buf->i_pts < p_owner->i_preroll_end )
1300         {
1301             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1302             continue;
1303         }
1304
1305         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1306         {
1307             msg_Dbg( p_dec, "End of audio preroll" );
1308             if( p_owner->p_aout && p_owner->p_aout_input )
1309                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1310             /* */
1311             p_owner->i_preroll_end = VLC_TS_INVALID;
1312         }
1313
1314         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1315     }
1316
1317     /* Update ugly stat */
1318     input_thread_t  *p_input = p_owner->p_input;
1319
1320     if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1321     {
1322         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1323
1324         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1325                              i_lost, NULL );
1326         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1327                              i_played, NULL );
1328         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1329                              i_decoded, NULL );
1330
1331         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1332     }
1333 }
1334 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1335 {
1336     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1337     block_t *p_cc;
1338     bool pb_present[4];
1339     bool b_processed = false;
1340     int i;
1341     int i_cc_decoder;
1342
1343     assert( p_dec_cc->pf_get_cc != NULL );
1344
1345     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1346     if( !p_owner->cc.b_supported )
1347         return;
1348
1349     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1350     if( !p_cc )
1351         return;
1352
1353     vlc_mutex_lock( &p_owner->lock );
1354     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1355     {
1356         p_owner->cc.pb_present[i] |= pb_present[i];
1357         if( p_owner->cc.pp_decoder[i] )
1358             i_cc_decoder++;
1359     }
1360
1361     for( i = 0; i < 4; i++ )
1362     {
1363         if( !p_owner->cc.pp_decoder[i] )
1364             continue;
1365
1366         if( i_cc_decoder > 1 )
1367             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1368         else
1369             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1370         i_cc_decoder--;
1371         b_processed = true;
1372     }
1373     vlc_mutex_unlock( &p_owner->lock );
1374
1375     if( !b_processed )
1376         block_Release( p_cc );
1377 }
1378
1379 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1380                               int *pi_played_sum, int *pi_lost_sum )
1381 {
1382     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1383     vout_thread_t  *p_vout = p_owner->p_vout;
1384     bool b_first_buffered;
1385
1386     if( p_picture->date <= VLC_TS_INVALID )
1387     {
1388         msg_Warn( p_dec, "non-dated video buffer received" );
1389         *pi_lost_sum += 1;
1390         vout_ReleasePicture( p_vout, p_picture );
1391         return;
1392     }
1393
1394     /* */
1395     vlc_mutex_lock( &p_owner->lock );
1396
1397     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1398     {
1399         p_picture->p_next = NULL;
1400
1401         *p_owner->buffer.pp_picture_next = p_picture;
1402         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1403
1404         p_owner->buffer.i_count++;
1405         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1406             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1407         {
1408             p_owner->buffer.b_full = true;
1409             vlc_cond_signal( &p_owner->wait_acknowledge );
1410         }
1411     }
1412     b_first_buffered = p_owner->buffer.p_picture != NULL;
1413
1414     for( ;; b_first_buffered = false )
1415     {
1416         bool b_has_more = false;
1417
1418         bool b_reject;
1419
1420         DecoderWaitUnblock( p_dec, &b_reject );
1421
1422         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1423         {
1424             vlc_mutex_unlock( &p_owner->lock );
1425             return;
1426         }
1427         bool b_buffering_first = p_owner->b_buffering;
1428
1429         /* */
1430         if( p_owner->buffer.p_picture )
1431         {
1432             p_picture = p_owner->buffer.p_picture;
1433
1434             p_owner->buffer.p_picture = p_picture->p_next;
1435             p_owner->buffer.i_count--;
1436
1437             b_has_more = p_owner->buffer.p_picture != NULL;
1438             if( !b_has_more )
1439                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1440         }
1441
1442         /* */
1443         if( b_buffering_first )
1444         {
1445             assert( p_owner->buffer.b_first );
1446             assert( !p_owner->buffer.i_count );
1447             msg_Dbg( p_dec, "Received first picture" );
1448             p_owner->buffer.b_first = false;
1449             p_picture->b_force = true;
1450         }
1451
1452         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1453         int i_rate = INPUT_RATE_DEFAULT;
1454         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1455                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1456
1457         vlc_mutex_unlock( &p_owner->lock );
1458
1459         /* */
1460         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1461             b_reject = true;
1462
1463         if( !b_reject )
1464         {
1465             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1466             {
1467                 /* Be sure to not display old picture after our own */
1468                 vout_Flush( p_vout, p_picture->date );
1469                 p_owner->i_last_rate = i_rate;
1470             }
1471             vout_PutPicture( p_vout, p_picture );
1472         }
1473         else
1474         {
1475             if( b_dated )
1476                 msg_Warn( p_dec, "early picture skipped" );
1477             else
1478                 msg_Warn( p_dec, "non-dated video buffer received" );
1479
1480             *pi_lost_sum += 1;
1481             vout_ReleasePicture( p_vout, p_picture );
1482         }
1483         int i_tmp_display;
1484         int i_tmp_lost;
1485         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1486
1487         *pi_played_sum += i_tmp_display;
1488         *pi_lost_sum += i_tmp_lost;
1489
1490         if( !b_has_more || b_buffering_first )
1491             break;
1492
1493         vlc_mutex_lock( &p_owner->lock );
1494         if( !p_owner->buffer.p_picture )
1495         {
1496             vlc_mutex_unlock( &p_owner->lock );
1497             break;
1498         }
1499     }
1500 }
1501
1502 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1503 {
1504     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1505     picture_t      *p_pic;
1506     int i_lost = 0;
1507     int i_decoded = 0;
1508     int i_displayed = 0;
1509
1510     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1511     {
1512         vout_thread_t  *p_vout = p_owner->p_vout;
1513         if( p_dec->b_die )
1514         {
1515             /* It prevent freezing VLC in case of broken decoder */
1516             vout_ReleasePicture( p_vout, p_pic );
1517             if( p_block )
1518                 block_Release( p_block );
1519             break;
1520         }
1521
1522         i_decoded++;
1523
1524         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1525         {
1526             vout_ReleasePicture( p_vout, p_pic );
1527             continue;
1528         }
1529
1530         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1531         {
1532             msg_Dbg( p_dec, "End of video preroll" );
1533             if( p_vout )
1534                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1535             /* */
1536             p_owner->i_preroll_end = VLC_TS_INVALID;
1537         }
1538
1539         if( p_dec->pf_get_cc &&
1540             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1541             DecoderGetCc( p_dec, p_dec );
1542
1543         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1544     }
1545
1546     /* Update ugly stat */
1547     input_thread_t *p_input = p_owner->p_input;
1548
1549     if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1550     {
1551         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1552
1553         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1554                              i_decoded, NULL );
1555         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1556                              i_lost , NULL);
1557
1558         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1559                              i_displayed, NULL);
1560
1561         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1562     }
1563 }
1564
1565 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1566                             bool b_telx )
1567 {
1568     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1569     vout_thread_t *p_vout = p_owner->p_spu_vout;
1570
1571     /* */
1572     if( p_subpic->i_start <= VLC_TS_INVALID && !b_telx )
1573     {
1574         msg_Warn( p_dec, "non-dated spu buffer received" );
1575         subpicture_Delete( p_subpic );
1576         return;
1577     }
1578
1579     /* */
1580     vlc_mutex_lock( &p_owner->lock );
1581
1582     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1583     {
1584         p_subpic->p_next = NULL;
1585
1586         *p_owner->buffer.pp_subpic_next = p_subpic;
1587         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1588
1589         p_owner->buffer.i_count++;
1590         /* XXX it is important to be full after the first one */
1591         if( p_owner->buffer.i_count > 0 )
1592         {
1593             p_owner->buffer.b_full = true;
1594             vlc_cond_signal( &p_owner->wait_acknowledge );
1595         }
1596     }
1597
1598     for( ;; )
1599     {
1600         bool b_has_more = false;
1601         bool b_reject;
1602         DecoderWaitUnblock( p_dec, &b_reject );
1603
1604         if( p_owner->b_buffering )
1605         {
1606             vlc_mutex_unlock( &p_owner->lock );
1607             return;
1608         }
1609
1610         /* */
1611         if( p_owner->buffer.p_subpic )
1612         {
1613             p_subpic = p_owner->buffer.p_subpic;
1614
1615             p_owner->buffer.p_subpic = p_subpic->p_next;
1616             p_owner->buffer.i_count--;
1617
1618             b_has_more = p_owner->buffer.p_subpic != NULL;
1619             if( !b_has_more )
1620                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1621         }
1622
1623         /* */
1624         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1625                       NULL, INT64_MAX, b_telx );
1626
1627         vlc_mutex_unlock( &p_owner->lock );
1628
1629         if( p_subpic->i_start <= VLC_TS_INVALID )
1630             b_reject = true;
1631
1632         DecoderWaitDate( p_dec, &b_reject,
1633                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1634
1635         if( !b_reject )
1636             vout_PutSubpicture( p_vout, p_subpic );
1637         else
1638             subpicture_Delete( p_subpic );
1639
1640         if( !b_has_more )
1641             break;
1642         vlc_mutex_lock( &p_owner->lock );
1643         if( !p_owner->buffer.p_subpic )
1644         {
1645             vlc_mutex_unlock( &p_owner->lock );
1646             break;
1647         }
1648     }
1649 }
1650
1651 #ifdef ENABLE_SOUT
1652 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1653                              bool b_telx )
1654 {
1655     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1656
1657     assert( p_owner->p_clock );
1658     assert( !p_sout_block->p_next );
1659
1660     vlc_mutex_lock( &p_owner->lock );
1661
1662     if( p_owner->b_buffering || p_owner->buffer.p_block )
1663     {
1664         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1665
1666         p_owner->buffer.i_count++;
1667         /* XXX it is important to be full after the first one */
1668         if( p_owner->buffer.i_count > 0 )
1669         {
1670             p_owner->buffer.b_full = true;
1671             vlc_cond_signal( &p_owner->wait_acknowledge );
1672         }
1673     }
1674
1675     for( ;; )
1676     {
1677         bool b_has_more = false;
1678         bool b_reject;
1679         DecoderWaitUnblock( p_dec, &b_reject );
1680
1681         if( p_owner->b_buffering )
1682         {
1683             vlc_mutex_unlock( &p_owner->lock );
1684             return;
1685         }
1686
1687         /* */
1688         if( p_owner->buffer.p_block )
1689         {
1690             p_sout_block = p_owner->buffer.p_block;
1691
1692             p_owner->buffer.p_block = p_sout_block->p_next;
1693             p_owner->buffer.i_count--;
1694
1695             b_has_more = p_owner->buffer.p_block != NULL;
1696             if( !b_has_more )
1697                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1698         }
1699         p_sout_block->p_next = NULL;
1700
1701         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1702                       &p_sout_block->i_length,
1703                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1704
1705         vlc_mutex_unlock( &p_owner->lock );
1706
1707         if( !b_reject )
1708             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1709         else
1710             block_Release( p_sout_block );
1711
1712         if( !b_has_more )
1713             break;
1714         vlc_mutex_lock( &p_owner->lock );
1715         if( !p_owner->buffer.p_block )
1716         {
1717             vlc_mutex_unlock( &p_owner->lock );
1718             break;
1719         }
1720     }
1721 }
1722 #endif
1723
1724 /* */
1725 static void DecoderFlushBuffering( decoder_t *p_dec )
1726 {
1727     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1728
1729     vlc_assert_locked( &p_owner->lock );
1730
1731     while( p_owner->buffer.p_picture )
1732     {
1733         picture_t *p_picture = p_owner->buffer.p_picture;
1734
1735         p_owner->buffer.p_picture = p_picture->p_next;
1736         p_owner->buffer.i_count--;
1737
1738         if( p_owner->p_vout )
1739         {
1740             vout_ReleasePicture( p_owner->p_vout, p_picture );
1741         }
1742
1743         if( !p_owner->buffer.p_picture )
1744             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1745     }
1746     while( p_owner->buffer.p_audio )
1747     {
1748         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1749
1750         p_owner->buffer.p_audio = p_audio->p_next;
1751         p_owner->buffer.i_count--;
1752
1753         aout_BufferFree( p_audio );
1754
1755         if( !p_owner->buffer.p_audio )
1756             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1757     }
1758     while( p_owner->buffer.p_subpic )
1759     {
1760         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1761
1762         p_owner->buffer.p_subpic = p_subpic->p_next;
1763         p_owner->buffer.i_count--;
1764
1765         subpicture_Delete( p_subpic );
1766
1767         if( !p_owner->buffer.p_subpic )
1768             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1769     }
1770     if( p_owner->buffer.p_block )
1771     {
1772         block_ChainRelease( p_owner->buffer.p_block );
1773
1774         p_owner->buffer.i_count = 0;
1775         p_owner->buffer.p_block = NULL;
1776         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1777     }
1778 }
1779
1780 #ifdef ENABLE_SOUT
1781 /* This function process a block for sout
1782  */
1783 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1784 {
1785     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1786     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1787     block_t *p_sout_block;
1788
1789     while( ( p_sout_block =
1790                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1791     {
1792         if( !p_owner->p_sout_input )
1793         {
1794             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1795
1796             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1797             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1798             if( p_dec->fmt_in.psz_language )
1799             {
1800                 free( p_owner->sout.psz_language );
1801                 p_owner->sout.psz_language =
1802                     strdup( p_dec->fmt_in.psz_language );
1803             }
1804
1805             p_owner->p_sout_input =
1806                 sout_InputNew( p_owner->p_sout,
1807                                &p_owner->sout );
1808
1809             if( p_owner->p_sout_input == NULL )
1810             {
1811                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1812                          (char *)&p_owner->sout.i_codec );
1813                 p_dec->b_error = true;
1814
1815                 while( p_sout_block )
1816                 {
1817                     block_t *p_next = p_sout_block->p_next;
1818                     block_Release( p_sout_block );
1819                     p_sout_block = p_next;
1820                 }
1821                 break;
1822             }
1823         }
1824
1825         while( p_sout_block )
1826         {
1827             block_t *p_next = p_sout_block->p_next;
1828
1829             p_sout_block->p_next = NULL;
1830
1831             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1832
1833             p_sout_block = p_next;
1834         }
1835     }
1836 }
1837 #endif
1838
1839 /* This function process a video block
1840  */
1841 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1842 {
1843     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1844
1845     if( p_owner->p_packetizer )
1846     {
1847         block_t *p_packetized_block;
1848         decoder_t *p_packetizer = p_owner->p_packetizer;
1849
1850         while( (p_packetized_block =
1851                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1852         {
1853             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1854             {
1855                 es_format_Clean( &p_dec->fmt_in );
1856                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1857             }
1858             if( p_packetizer->pf_get_cc )
1859                 DecoderGetCc( p_dec, p_packetizer );
1860
1861             while( p_packetized_block )
1862             {
1863                 block_t *p_next = p_packetized_block->p_next;
1864                 p_packetized_block->p_next = NULL;
1865
1866                 DecoderDecodeVideo( p_dec, p_packetized_block );
1867
1868                 p_packetized_block = p_next;
1869             }
1870         }
1871         /* The packetizer does not output a block that tell the decoder to flush
1872          * do it ourself */
1873         if( b_flush )
1874         {
1875             block_t *p_null = DecoderBlockFlushNew();
1876             if( p_null )
1877                 DecoderDecodeVideo( p_dec, p_null );
1878         }
1879     }
1880     else if( p_block )
1881     {
1882         DecoderDecodeVideo( p_dec, p_block );
1883     }
1884
1885     if( b_flush && p_owner->p_vout )
1886         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1887 }
1888
1889 /* This function process a audio block
1890  */
1891 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1892 {
1893     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1894
1895     if( p_owner->p_packetizer )
1896     {
1897         block_t *p_packetized_block;
1898         decoder_t *p_packetizer = p_owner->p_packetizer;
1899
1900         while( (p_packetized_block =
1901                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1902         {
1903             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1904             {
1905                 es_format_Clean( &p_dec->fmt_in );
1906                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1907             }
1908
1909             while( p_packetized_block )
1910             {
1911                 block_t *p_next = p_packetized_block->p_next;
1912                 p_packetized_block->p_next = NULL;
1913
1914                 DecoderDecodeAudio( p_dec, p_packetized_block );
1915
1916                 p_packetized_block = p_next;
1917             }
1918         }
1919         /* The packetizer does not output a block that tell the decoder to flush
1920          * do it ourself */
1921         if( b_flush )
1922         {
1923             block_t *p_null = DecoderBlockFlushNew();
1924             if( p_null )
1925                 DecoderDecodeAudio( p_dec, p_null );
1926         }
1927     }
1928     else if( p_block )
1929     {
1930         DecoderDecodeAudio( p_dec, p_block );
1931     }
1932
1933     if( b_flush && p_owner->p_aout )
1934         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1935 }
1936
1937 /* This function process a subtitle block
1938  */
1939 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1940 {
1941     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1942     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1943
1944     input_thread_t *p_input = p_owner->p_input;
1945     vout_thread_t *p_vout;
1946     subpicture_t *p_spu;
1947
1948     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1949     {
1950         if( p_input != NULL )
1951         {
1952             vlc_mutex_lock( &p_input->p->counters.counters_lock );
1953             stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1,
1954                                  NULL );
1955             vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1956         }
1957
1958         p_vout = input_resource_HoldVout( p_owner->p_resource );
1959         if( p_vout && p_owner->p_spu_vout == p_vout )
1960         {
1961             /* Preroll does not work very well with subtitle */
1962             if( p_spu->i_start > VLC_TS_INVALID &&
1963                 p_spu->i_start < p_owner->i_preroll_end &&
1964                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1965             {
1966                 subpicture_Delete( p_spu );
1967             }
1968             else
1969             {
1970                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1971             }
1972         }
1973         else
1974         {
1975             subpicture_Delete( p_spu );
1976         }
1977         if( p_vout )
1978             vlc_object_release( p_vout );
1979     }
1980
1981     if( b_flush && p_owner->p_spu_vout )
1982     {
1983         p_vout = input_resource_HoldVout( p_owner->p_resource );
1984
1985         if( p_vout && p_owner->p_spu_vout == p_vout )
1986             vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1987
1988         if( p_vout )
1989             vlc_object_release( p_vout );
1990     }
1991 }
1992
1993 /* */
1994 static void DecoderProcessOnFlush( decoder_t *p_dec )
1995 {
1996     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1997
1998     vlc_mutex_lock( &p_owner->lock );
1999     DecoderFlushBuffering( p_dec );
2000
2001     if( p_owner->b_flushing )
2002     {
2003         p_owner->b_flushing = false;
2004         vlc_cond_signal( &p_owner->wait_acknowledge );
2005     }
2006     vlc_mutex_unlock( &p_owner->lock );
2007 }
2008
2009 /**
2010  * Decode a block
2011  *
2012  * \param p_dec the decoder object
2013  * \param p_block the block to decode
2014  * \return VLC_SUCCESS or an error code
2015  */
2016 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
2017 {
2018     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
2019     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2020
2021     if( p_block && p_block->i_buffer <= 0 )
2022     {
2023         assert( !b_flush_request );
2024         block_Release( p_block );
2025         return;
2026     }
2027
2028 #ifdef ENABLE_SOUT
2029     if( p_owner->b_packetizer )
2030     {
2031         if( p_block )
2032             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2033
2034         DecoderProcessSout( p_dec, p_block );
2035     }
2036     else
2037 #endif
2038     {
2039         bool b_flush = false;
2040
2041         if( p_block )
2042         {
2043             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
2044             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
2045
2046             b_flush = !b_flushing && b_flush_request;
2047
2048             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2049         }
2050
2051         if( p_dec->fmt_out.i_cat == AUDIO_ES )
2052         {
2053             DecoderProcessAudio( p_dec, p_block, b_flush );
2054         }
2055         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
2056         {
2057             DecoderProcessVideo( p_dec, p_block, b_flush );
2058         }
2059         else if( p_dec->fmt_out.i_cat == SPU_ES )
2060         {
2061             DecoderProcessSpu( p_dec, p_block, b_flush );
2062         }
2063         else
2064         {
2065             msg_Err( p_dec, "unknown ES format" );
2066             p_dec->b_error = true;
2067         }
2068     }
2069
2070     /* */
2071     if( b_flush_request )
2072         DecoderProcessOnFlush( p_dec );
2073 }
2074
2075 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2076 {
2077     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2078
2079     /* */
2080     if( p_block )
2081         block_Release( p_block );
2082
2083     if( b_flush_request )
2084         DecoderProcessOnFlush( p_dec );
2085 }
2086
2087
2088 /**
2089  * Destroys a decoder object
2090  *
2091  * \param p_dec the decoder object
2092  * \return nothing
2093  */
2094 static void DeleteDecoder( decoder_t * p_dec )
2095 {
2096     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2097
2098     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2099              (char*)&p_dec->fmt_in.i_codec,
2100              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2101
2102     /* Free all packets still in the decoder fifo. */
2103     block_FifoEmpty( p_owner->p_fifo );
2104     block_FifoRelease( p_owner->p_fifo );
2105
2106     /* */
2107     vlc_mutex_lock( &p_owner->lock );
2108     DecoderFlushBuffering( p_dec );
2109     vlc_mutex_unlock( &p_owner->lock );
2110
2111     /* Cleanup */
2112     if( p_owner->p_aout )
2113     {
2114         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2115         input_resource_RequestAout( p_owner->p_resource, p_owner->p_aout );
2116         if( p_owner->p_input != NULL )
2117             input_SendEventAout( p_owner->p_input );
2118     }
2119     if( p_owner->p_vout )
2120     {
2121         /* Hack to make sure all the the pictures are freed by the decoder
2122          * and that the vout is not paused anymore */
2123         vout_Reset( p_owner->p_vout );
2124
2125         /* */
2126         input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
2127                                     0, true );
2128         if( p_owner->p_input != NULL )
2129             input_SendEventVout( p_owner->p_input );
2130     }
2131
2132 #ifdef ENABLE_SOUT
2133     if( p_owner->p_sout_input )
2134     {
2135         sout_InputDelete( p_owner->p_sout_input );
2136         es_format_Clean( &p_owner->sout );
2137     }
2138 #endif
2139
2140     if( p_dec->fmt_out.i_cat == SPU_ES )
2141     {
2142         vout_thread_t *p_vout;
2143
2144         p_vout = input_resource_HoldVout( p_owner->p_resource );
2145         if( p_vout )
2146         {
2147             if( p_owner->p_spu_vout == p_vout )
2148                 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2149             vlc_object_release( p_vout );
2150         }
2151     }
2152
2153     es_format_Clean( &p_dec->fmt_in );
2154     es_format_Clean( &p_dec->fmt_out );
2155     if( p_dec->p_description )
2156         vlc_meta_Delete( p_dec->p_description );
2157     es_format_Clean( &p_owner->fmt_description );
2158     if( p_owner->p_description )
2159         vlc_meta_Delete( p_owner->p_description );
2160
2161     if( p_owner->p_packetizer )
2162     {
2163         module_unneed( p_owner->p_packetizer,
2164                        p_owner->p_packetizer->p_module );
2165         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2166         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2167         if( p_owner->p_packetizer->p_description )
2168             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2169         vlc_object_release( p_owner->p_packetizer );
2170     }
2171
2172     vlc_cond_destroy( &p_owner->wait_acknowledge );
2173     vlc_cond_destroy( &p_owner->wait_request );
2174     vlc_mutex_destroy( &p_owner->lock );
2175
2176     vlc_object_release( p_dec );
2177
2178     free( p_owner );
2179 }
2180
2181 /*****************************************************************************
2182  * Buffers allocation callbacks for the decoders
2183  *****************************************************************************/
2184 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2185 {
2186     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2187
2188     vlc_assert_locked( &p_owner->lock );
2189
2190     p_owner->b_fmt_description = true;
2191
2192     /* Copy es_format */
2193     es_format_Clean( &p_owner->fmt_description );
2194     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2195
2196     /* Move p_description */
2197     if( p_owner->p_description && p_dec->p_description )
2198         vlc_meta_Delete( p_owner->p_description );
2199     p_owner->p_description = p_dec->p_description;
2200     p_dec->p_description = NULL;
2201 }
2202 static vout_thread_t *aout_request_vout( void *p_private,
2203                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2204 {
2205     decoder_t *p_dec = p_private;
2206     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2207     input_thread_t *p_input = p_owner->p_input;
2208
2209     p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
2210                                          b_recyle );
2211     if( p_input != NULL )
2212         input_SendEventVout( p_input );
2213
2214     return p_vout;
2215 }
2216
2217 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2218 {
2219     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2220     aout_buffer_t *p_buffer;
2221
2222     if( p_owner->p_aout_input != NULL &&
2223         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2224           p_dec->fmt_out.audio.i_original_channels !=
2225               p_owner->audio.i_original_channels ||
2226           p_dec->fmt_out.audio.i_bytes_per_frame !=
2227               p_owner->audio.i_bytes_per_frame ) )
2228     {
2229         aout_input_t *p_aout_input = p_owner->p_aout_input;
2230         aout_instance_t *p_aout = p_owner->p_aout;
2231
2232         /* Parameters changed, restart the aout */
2233         vlc_mutex_lock( &p_owner->lock );
2234
2235         DecoderFlushBuffering( p_dec );
2236
2237         p_owner->p_aout = NULL;
2238         p_owner->p_aout_input = NULL;
2239         aout_DecDelete( p_owner->p_aout, p_aout_input );
2240
2241         vlc_mutex_unlock( &p_owner->lock );
2242         input_resource_RequestAout( p_owner->p_resource, p_aout );
2243     }
2244
2245     if( p_owner->p_aout_input == NULL )
2246     {
2247         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2248         audio_sample_format_t format;
2249         aout_input_t *p_aout_input;
2250         aout_instance_t *p_aout;
2251         aout_request_vout_t request_vout;
2252
2253         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2254         p_owner->audio = p_dec->fmt_out.audio;
2255
2256         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2257         if( i_force_dolby &&
2258             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2259                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2260         {
2261             if( i_force_dolby == 1 )
2262             {
2263                 format.i_original_channels = format.i_original_channels |
2264                                              AOUT_CHAN_DOLBYSTEREO;
2265             }
2266             else /* i_force_dolby == 2 */
2267             {
2268                 format.i_original_channels = format.i_original_channels &
2269                                              ~AOUT_CHAN_DOLBYSTEREO;
2270             }
2271         }
2272
2273         request_vout.pf_request_vout = aout_request_vout;
2274         request_vout.p_private = p_dec;
2275
2276         assert( p_owner->p_aout == NULL );
2277         p_aout = input_resource_RequestAout( p_owner->p_resource, NULL );
2278         if( p_aout )
2279         {
2280             p_aout_input = aout_DecNew( p_aout, &format,
2281                                         &p_dec->fmt_out.audio_replay_gain,
2282                                         &request_vout );
2283             if( p_aout_input == NULL )
2284             {
2285                 input_resource_RequestAout( p_owner->p_resource, p_aout );
2286                 p_aout = NULL;
2287             }
2288         }
2289         else
2290             p_aout_input = NULL;
2291
2292         vlc_mutex_lock( &p_owner->lock );
2293
2294         p_owner->p_aout = p_aout;
2295         p_owner->p_aout_input = p_aout_input;
2296         DecoderUpdateFormatLocked( p_dec );
2297
2298         vlc_mutex_unlock( &p_owner->lock );
2299
2300         if( p_owner->p_input != NULL )
2301             input_SendEventAout( p_owner->p_input );
2302
2303         if( p_owner->p_aout_input == NULL )
2304         {
2305             msg_Err( p_dec, "failed to create audio output" );
2306             p_dec->b_error = true;
2307             return NULL;
2308         }
2309         p_dec->fmt_out.audio.i_bytes_per_frame =
2310             p_owner->audio.i_bytes_per_frame;
2311     }
2312
2313     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2314
2315     return p_buffer;
2316 }
2317
2318 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2319 {
2320     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2321
2322     aout_DecDeleteBuffer( p_owner->p_aout,
2323                           p_owner->p_aout_input, p_buffer );
2324 }
2325
2326 static picture_t *vout_new_buffer( decoder_t *p_dec )
2327 {
2328     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2329
2330     if( p_owner->p_vout == NULL ||
2331         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2332         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2333         p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2334         p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2335         p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset  ||
2336         p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset  ||
2337         p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2338         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2339         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2340     {
2341         vout_thread_t *p_vout;
2342
2343         if( !p_dec->fmt_out.video.i_width ||
2344             !p_dec->fmt_out.video.i_height )
2345         {
2346             /* Can't create a new vout without display size */
2347             return NULL;
2348         }
2349
2350         video_format_t fmt = p_dec->fmt_out.video;
2351         fmt.i_chroma = p_dec->fmt_out.i_codec;
2352         p_owner->video = fmt;
2353
2354         if( !fmt.i_visible_width || !fmt.i_visible_height )
2355         {
2356             if( p_dec->fmt_in.video.i_visible_width &&
2357                 p_dec->fmt_in.video.i_visible_height )
2358             {
2359                 fmt.i_visible_width  = p_dec->fmt_in.video.i_visible_width;
2360                 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2361             }
2362             else
2363             {
2364                 fmt.i_visible_width  = fmt.i_width;
2365                 fmt.i_visible_height = fmt.i_height;
2366             }
2367         }
2368
2369         if( fmt.i_visible_height == 1088 &&
2370             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2371         {
2372             fmt.i_visible_height = 1080;
2373             if( !(fmt.i_sar_num % 136))
2374             {
2375                 fmt.i_sar_num *= 135;
2376                 fmt.i_sar_den *= 136;
2377             }
2378             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2379         }
2380
2381         if( !fmt.i_sar_num || !fmt.i_sar_den )
2382         {
2383             fmt.i_sar_num = 1;
2384             fmt.i_sar_den = 1;
2385         }
2386
2387         vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2388                      fmt.i_sar_num, fmt.i_sar_den, 50000 );
2389
2390         vlc_mutex_lock( &p_owner->lock );
2391
2392         DecoderFlushBuffering( p_dec );
2393
2394         p_vout = p_owner->p_vout;
2395         p_owner->p_vout = NULL;
2396         vlc_mutex_unlock( &p_owner->lock );
2397
2398         unsigned dpb_size;
2399         switch( p_dec->fmt_in.i_codec )
2400         {
2401         case VLC_CODEC_H264:
2402         case VLC_CODEC_DIRAC: /* FIXME valid ? */
2403             dpb_size = 18;
2404             break;
2405         case VLC_CODEC_VP5:
2406         case VLC_CODEC_VP6:
2407         case VLC_CODEC_VP6F:
2408         case VLC_CODEC_VP8:
2409             dpb_size = 3;
2410             break;
2411         default:
2412             dpb_size = 2;
2413             break;
2414         }
2415         p_vout = input_resource_RequestVout( p_owner->p_resource,
2416                                              p_vout, &fmt,
2417                                              dpb_size + 1 + DECODER_MAX_BUFFERING_COUNT,
2418                                              true );
2419         vlc_mutex_lock( &p_owner->lock );
2420         p_owner->p_vout = p_vout;
2421
2422         DecoderUpdateFormatLocked( p_dec );
2423
2424         vlc_mutex_unlock( &p_owner->lock );
2425
2426         if( p_owner->p_input != NULL )
2427             input_SendEventVout( p_owner->p_input );
2428         if( p_vout == NULL )
2429         {
2430             msg_Err( p_dec, "failed to create video output" );
2431             p_dec->b_error = true;
2432             return NULL;
2433         }
2434     }
2435
2436     /* Get a new picture
2437      */
2438     for( ;; )
2439     {
2440         if( p_dec->b_die || p_dec->b_error )
2441             return NULL;
2442
2443         picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2444         if( p_picture )
2445             return p_picture;
2446
2447         if( DecoderIsFlushing( p_dec ) )
2448             return NULL;
2449
2450         /* */
2451         DecoderSignalBuffering( p_dec, true );
2452
2453         /* Check the decoder doesn't leak pictures */
2454         vout_FixLeaks( p_owner->p_vout );
2455
2456         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2457         msleep( VOUT_OUTMEM_SLEEP );
2458     }
2459 }
2460
2461 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2462 {
2463     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2464 }
2465
2466 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2467 {
2468     vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2469 }
2470
2471 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2472 {
2473     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2474 }
2475
2476 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2477                                      const subpicture_updater_t *p_updater )
2478 {
2479     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2480     vout_thread_t *p_vout = NULL;
2481     subpicture_t *p_subpic;
2482     int i_attempts = 30;
2483
2484     while( i_attempts-- )
2485     {
2486         if( p_dec->b_die || p_dec->b_error )
2487             break;
2488
2489         p_vout = input_resource_HoldVout( p_owner->p_resource );
2490         if( p_vout )
2491             break;
2492
2493         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2494     }
2495
2496     if( !p_vout )
2497     {
2498         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2499         return NULL;
2500     }
2501
2502     if( p_owner->p_spu_vout != p_vout )
2503     {
2504         vlc_mutex_lock( &p_owner->lock );
2505
2506         DecoderFlushBuffering( p_dec );
2507
2508         vlc_mutex_unlock( &p_owner->lock );
2509
2510         p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2511         p_owner->i_spu_order = 0;
2512         p_owner->p_spu_vout = p_vout;
2513     }
2514
2515     p_subpic = subpicture_New( p_updater );
2516     if( p_subpic )
2517     {
2518         p_subpic->i_channel = p_owner->i_spu_channel;
2519         p_subpic->i_order = p_owner->i_spu_order++;
2520         p_subpic->b_subtitle = true;
2521     }
2522
2523     vlc_object_release( p_vout );
2524
2525     return p_subpic;
2526 }
2527
2528 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2529 {
2530     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2531     vout_thread_t *p_vout = NULL;
2532
2533     p_vout = input_resource_HoldVout( p_owner->p_resource );
2534     if( !p_vout || p_owner->p_spu_vout != p_vout )
2535     {
2536         if( p_vout )
2537             vlc_object_release( p_vout );
2538         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2539         return;
2540     }
2541
2542     subpicture_Delete( p_subpic );
2543
2544     vlc_object_release( p_vout );
2545 }
2546