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_osd.h>
  42 #include <vlc_meta.h>
  43
  44 #include <vlc_interface.h>
  45 #include "audio_output/aout_internal.h"
  46 #include "stream_output/stream_output.h"
  47 #include "input_internal.h"
  48 #include "clock.h"
  49 #include "decoder.h"
  50 #include "event.h"
  51 #include "ressource.h"
  52
  53 #include "../video_output/vout_control.h"
  54
  55 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
  56 static void       DeleteDecoder( decoder_t * );
  57
  58 static void      *DecoderThread( vlc_object_t * );
  59 static void       DecoderProcess( decoder_t *, block_t * );
  60 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
  61 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
  62 static void       DecoderFlush( decoder_t * );
  63 static void       DecoderSignalBuffering( decoder_t *, bool );
  64 static void       DecoderFlushBuffering( decoder_t * );
  65
  66 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
  67
  68 /* Buffers allocation callbacks for the decoders */
  69 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  70 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  71
  72 static picture_t *vout_new_buffer( decoder_t * );
  73 static void vout_del_buffer( decoder_t *, picture_t * );
  74 static void vout_link_picture( decoder_t *, picture_t * );
  75 static void vout_unlink_picture( decoder_t *, picture_t * );
  76
  77 static subpicture_t *spu_new_buffer( decoder_t * );
  78 static void spu_del_buffer( decoder_t *, subpicture_t * );
  79
  80 static es_format_t null_es_format;
  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
 100     /* Current format in use by the output */
 101     video_format_t video;
 102     audio_format_t audio;
 103     es_format_t    sout;
 104
 105     /* */
 106     bool           b_fmt_description;
 107     es_format_t    fmt_description;
 108     vlc_meta_t     *p_description;
 109
 110     /* fifo */
 111     block_fifo_t *p_fifo;
 112
 113     /* Lock for communication with decoder thread */
 114     vlc_mutex_t lock;
 115     vlc_cond_t  wait;
 116
 117     /* -- These variables need locking on write(only) -- */
 118     aout_instance_t *p_aout;
 119     aout_input_t    *p_aout_input;
 120
 121     vout_thread_t   *p_vout;
 122
 123     /* -- Theses variables need locking on read *and* write -- */
 124     /* */
 125     /* Pause */
 126     bool b_paused;
 127     struct
 128     {
 129         mtime_t i_date;
 130         int     i_ignore;
 131     } pause;
 132
 133     /* Buffering */
 134     bool b_buffering;
 135     struct
 136     {
 137         bool b_first;
 138         bool b_full;
 139         int  i_count;
 140
 141         picture_t     *p_picture;
 142         picture_t     **pp_picture_next;
 143
 144         subpicture_t  *p_subpic;
 145         subpicture_t  **pp_subpic_next;
 146
 147         aout_buffer_t *p_audio;
 148         aout_buffer_t **pp_audio_next;
 149
 150         block_t       *p_block;
 151         block_t       **pp_block_next;
 152     } buffer;
 153
 154     /* Flushing */
 155     bool b_flushing;
 156
 157     /* CC */
 158     struct
 159     {
 160         bool b_supported;
 161         bool pb_present[4];
 162         decoder_t *pp_decoder[4];
 163     } cc;
 164
 165     /* Delay */
 166     mtime_t i_ts_delay;
 167 };
 168
 169 #define DECODER_MAX_BUFFERING_COUNT (4)
 170 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
 171 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
 172
 173 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
 174  * a bogus PTS and won't be displayed */
 175 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
 176
 177 /* */
 178 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
 179
 180
 181 /*****************************************************************************
 182  * Public functions
 183  *****************************************************************************/
 184 picture_t *decoder_NewPicture( decoder_t *p_decoder )
 185 {
 186     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
 187     if( !p_picture )
 188         msg_Warn( p_decoder, "can't get output picture" );
 189     return p_picture;
 190 }
 191 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
 192 {
 193     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
 194 }
 195 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 196 {
 197     p_decoder->pf_picture_link( p_decoder, p_picture );
 198 }
 199 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 200 {
 201     p_decoder->pf_picture_unlink( p_decoder, p_picture );
 202 }
 203
 204 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
 205 {
 206     if( !p_decoder->pf_aout_buffer_new )
 207         return NULL;
 208     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
 209 }
 210 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
 211 {
 212     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
 213 }
 214
 215 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
 216 {
 217     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
 218     if( !p_subpicture )
 219         msg_Warn( p_decoder, "can't get output subpicture" );
 220     return p_subpicture;
 221 }
 222 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
 223 {
 224     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
 225 }
 226
 227 /* decoder_GetInputAttachments:
 228  */
 229 int decoder_GetInputAttachments( decoder_t *p_dec,
 230                                  input_attachment_t ***ppp_attachment,
 231                                  int *pi_attachment )
 232 {
 233     if( !p_dec->pf_get_attachments )
 234         return VLC_EGENERIC;
 235
 236     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
 237 }
 238 /* decoder_GetDisplayDate:
 239  */
 240 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 241 {
 242     if( !p_dec->pf_get_display_date )
 243         return 0;
 244
 245     return p_dec->pf_get_display_date( p_dec, i_ts );
 246 }
 247 /* decoder_GetDisplayRate:
 248  */
 249 int decoder_GetDisplayRate( decoder_t *p_dec )
 250 {
 251     if( !p_dec->pf_get_display_rate )
 252         return INPUT_RATE_DEFAULT;
 253
 254     return p_dec->pf_get_display_rate( p_dec );
 255 }
 256
 257 /**
 258  * Spawns a new decoder thread
 259  *
 260  * \param p_input the input thread
 261  * \param p_es the es descriptor
 262  * \return the spawned decoder object
 263  */
 264 decoder_t *input_DecoderNew( input_thread_t *p_input,
 265                              es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout  )
 266 {
 267     decoder_t *p_dec = NULL;
 268     int i_priority;
 269
 270 #ifdef ENABLE_SOUT
 271     /* If we are in sout mode, search for packetizer module */
 272     if( p_sout )
 273     {
 274         /* Create the decoder configuration structure */
 275         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
 276         if( p_dec == NULL )
 277         {
 278             msg_Err( p_input, "could not create packetizer" );
 279             intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
 280                             _("VLC could not open the packetizer module.") );
 281             return NULL;
 282         }
 283     }
 284     else
 285 #endif
 286     {
 287         /* Create the decoder configuration structure */
 288         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
 289         if( p_dec == NULL )
 290         {
 291             msg_Err( p_input, "could not create decoder" );
 292             intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
 293                             _("VLC could not open the decoder module.") );
 294             return NULL;
 295         }
 296     }
 297
 298     if( !p_dec->p_module )
 299     {
 300         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 301
 302         DeleteDecoder( p_dec );
 303         vlc_object_release( p_dec );
 304         return NULL;
 305     }
 306
 307     p_dec->p_owner->p_clock = p_clock;
 308
 309     if( fmt->i_cat == AUDIO_ES )
 310         i_priority = VLC_THREAD_PRIORITY_AUDIO;
 311     else
 312         i_priority = VLC_THREAD_PRIORITY_VIDEO;
 313
 314     /* Spawn the decoder thread */
 315     if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
 316     {
 317         msg_Err( p_dec, "cannot spawn decoder thread" );
 318         module_unneed( p_dec, p_dec->p_module );
 319         DeleteDecoder( p_dec );
 320         vlc_object_release( p_dec );
 321         return NULL;
 322     }
 323
 324     return p_dec;
 325 }
 326
 327 /**
 328  * Kills a decoder thread and waits until it's finished
 329  *
 330  * \param p_input the input thread
 331  * \param p_es the es descriptor
 332  * \return nothing
 333  */
 334 void input_DecoderDelete( decoder_t *p_dec )
 335 {
 336     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 337
 338     vlc_object_kill( p_dec );
 339
 340     /* Make sure we aren't paused/buffering/waiting anymore */
 341     vlc_mutex_lock( &p_owner->lock );
 342     const bool b_was_paused = p_owner->b_paused;
 343     p_owner->b_paused = false;
 344     p_owner->b_buffering = false;
 345     p_owner->b_flushing = true;
 346     vlc_cond_signal( &p_owner->wait );
 347     vlc_mutex_unlock( &p_owner->lock );
 348
 349     vlc_thread_join( p_dec );
 350     p_owner->b_paused = b_was_paused;
 351
 352     module_unneed( p_dec, p_dec->p_module );
 353
 354     /* */
 355     if( p_dec->p_owner->cc.b_supported )
 356     {
 357         int i;
 358         for( i = 0; i < 4; i++ )
 359             input_DecoderSetCcState( p_dec, false, i );
 360     }
 361
 362     /* Delete decoder configuration */
 363     DeleteDecoder( p_dec );
 364
 365     /* Delete the decoder */
 366     vlc_object_release( p_dec );
 367 }
 368
 369 /**
 370  * Put a block_t in the decoder's fifo.
 371  * Thread-safe w.r.t. the decoder. May be a cancellation point.
 372  *
 373  * \param p_dec the decoder object
 374  * \param p_block the data block
 375  */
 376 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
 377 {
 378     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 379
 380     if( p_owner->p_input->p->b_out_pace_control )
 381     {
 382         /* The fifo is not consummed when buffering and so will
 383          * deadlock vlc.
 384          * There is no need to lock as b_buffering is never modify
 385          * inside decoder thread. */
 386         if( !p_owner->b_buffering )
 387             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
 388     }
 389     else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
 390     {
 391         /* FIXME: ideally we would check the time amount of data
 392          * in the FIFO instead of its size. */
 393         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 394                   "consumed quickly enough), resetting fifo!" );
 395         block_FifoEmpty( p_owner->p_fifo );
 396     }
 397
 398     block_FifoPut( p_owner->p_fifo, p_block );
 399 }
 400
 401 bool input_DecoderIsEmpty( decoder_t * p_dec )
 402 {
 403     assert( !p_dec->p_owner->b_buffering );
 404
 405     /* FIXME that's not really true */
 406     return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
 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, VLC_OBJECT_DECODER, p_owner->p_sout );
 441         if( !p_cc )
 442         {
 443             msg_Err( p_dec, "could not create decoder" );
 444             intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
 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             vlc_object_release( p_cc );
 453             return VLC_EGENERIC;
 454         }
 455         p_cc->p_owner->p_clock = p_owner->p_clock;
 456
 457         vlc_mutex_lock( &p_owner->lock );
 458         p_owner->cc.pp_decoder[i_channel] = p_cc;
 459         vlc_mutex_unlock( &p_owner->lock );
 460     }
 461     else
 462     {
 463         decoder_t *p_cc;
 464
 465         vlc_mutex_lock( &p_owner->lock );
 466         p_cc = p_owner->cc.pp_decoder[i_channel];
 467         p_owner->cc.pp_decoder[i_channel] = NULL;
 468         vlc_mutex_unlock( &p_owner->lock );
 469
 470         if( p_cc )
 471         {
 472             vlc_object_kill( p_cc );
 473             module_unneed( p_cc, p_cc->p_module );
 474             DeleteDecoder( p_cc );
 475             vlc_object_release( p_cc );
 476         }
 477     }
 478     return VLC_SUCCESS;
 479 }
 480 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
 481 {
 482     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 483
 484     *pb_decode = false;
 485     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 486         return VLC_EGENERIC;
 487
 488     vlc_mutex_lock( &p_owner->lock );
 489     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
 490     vlc_mutex_unlock( &p_owner->lock );
 491     return VLC_EGENERIC;
 492 }
 493
 494 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 495 {
 496     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 497
 498     vlc_mutex_lock( &p_owner->lock );
 499
 500     assert( !p_owner->b_paused || !b_paused );
 501
 502     p_owner->b_paused = b_paused;
 503     p_owner->pause.i_date = i_date;
 504     p_owner->pause.i_ignore = 0;
 505     vlc_cond_signal( &p_owner->wait );
 506
 507     DecoderOutputChangePause( p_dec, b_paused, i_date );
 508
 509     vlc_mutex_unlock( &p_owner->lock );
 510 }
 511
 512 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
 513 {
 514     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 515
 516     vlc_mutex_lock( &p_owner->lock );
 517     p_owner->i_ts_delay = i_delay;
 518     vlc_mutex_unlock( &p_owner->lock );
 519 }
 520
 521 void input_DecoderStartBuffering( decoder_t *p_dec )
 522 {
 523     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 524
 525     vlc_mutex_lock( &p_owner->lock );
 526
 527     DecoderFlush( p_dec );
 528
 529     p_owner->buffer.b_first = true;
 530     p_owner->buffer.b_full = false;
 531     p_owner->buffer.i_count = 0;
 532
 533     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
 534             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
 535
 536     p_owner->buffer.p_picture = NULL;
 537     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
 538
 539     p_owner->buffer.p_subpic = NULL;
 540     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
 541
 542     p_owner->buffer.p_audio = NULL;
 543     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
 544
 545     p_owner->buffer.p_block = NULL;
 546     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
 547
 548
 549     p_owner->b_buffering = true;
 550
 551     vlc_cond_signal( &p_owner->wait );
 552
 553     vlc_mutex_unlock( &p_owner->lock );
 554 }
 555
 556 void input_DecoderStopBuffering( decoder_t *p_dec )
 557 {
 558     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 559
 560     vlc_mutex_lock( &p_owner->lock );
 561
 562     p_owner->b_buffering = false;
 563
 564     vlc_cond_signal( &p_owner->wait );
 565
 566     vlc_mutex_unlock( &p_owner->lock );
 567 }
 568
 569 void input_DecoderWaitBuffering( decoder_t *p_dec )
 570 {
 571     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 572
 573     vlc_mutex_lock( &p_owner->lock );
 574
 575     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
 576     {
 577         block_FifoWake( p_owner->p_fifo );
 578         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
 579     }
 580
 581     vlc_mutex_unlock( &p_owner->lock );
 582 }
 583
 584 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 585 {
 586     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 587
 588     *pi_duration = 0;
 589
 590     vlc_mutex_lock( &p_owner->lock );
 591     if( p_dec->fmt_in.i_cat == VIDEO_ES )
 592     {
 593         if( p_owner->b_paused && p_owner->p_vout )
 594         {
 595             vout_NextPicture( p_owner->p_vout, pi_duration );
 596             p_owner->pause.i_ignore++;
 597             vlc_cond_signal( &p_owner->wait );
 598         }
 599     }
 600     else
 601     {
 602         /* TODO subtitle should not be flushed */
 603         DecoderFlush( p_dec );
 604     }
 605     vlc_mutex_unlock( &p_owner->lock );
 606 }
 607
 608 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
 609 {
 610     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 611     bool b_changed;
 612
 613     vlc_mutex_lock( &p_owner->lock );
 614     b_changed = p_owner->b_fmt_description;
 615     if( b_changed )
 616     {
 617         if( p_fmt )
 618             es_format_Copy( p_fmt, &p_owner->fmt_description );
 619
 620         if( pp_meta )
 621         {
 622             *pp_meta = NULL;
 623             if( p_owner->p_description )
 624             {
 625                 *pp_meta = vlc_meta_New();
 626                 if( *pp_meta )
 627                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
 628             }
 629         }
 630         p_owner->b_fmt_description = false;
 631     }
 632     vlc_mutex_unlock( &p_owner->lock );
 633     return b_changed;
 634 }
 635
 636 /*****************************************************************************
 637  * Internal functions
 638  *****************************************************************************/
 639 static int DecoderGetInputAttachments( decoder_t *p_dec,
 640                                        input_attachment_t ***ppp_attachment,
 641                                        int *pi_attachment )
 642 {
 643     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
 644                           ppp_attachment, pi_attachment );
 645 }
 646 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 647 {
 648     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 649
 650     vlc_mutex_lock( &p_owner->lock );
 651     if( p_owner->b_buffering || p_owner->b_paused )
 652         i_ts = 0;
 653     vlc_mutex_unlock( &p_owner->lock );
 654
 655     if( !p_owner->p_clock || !i_ts )
 656         return i_ts;
 657
 658     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 659         return 0;
 660
 661     return i_ts;
 662 }
 663 static int DecoderGetDisplayRate( decoder_t *p_dec )
 664 {
 665     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 666
 667     if( !p_owner->p_clock )
 668         return INPUT_RATE_DEFAULT;
 669     return input_clock_GetRate( p_owner->p_clock );
 670 }
 671
 672 /* */
 673 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 674 {
 675     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
 676              "VLC probably does not support this sound or video format.",
 677              (char*)&codec );
 678     intf_UserFatal( p_dec, false, _("No suitable decoder module"),
 679                     _("VLC does not support the audio or video format \"%4.4s\". "
 680                       "Unfortunately there is no way for you to fix this."), (char*)&codec );
 681 }
 682
 683
 684 /**
 685  * Create a decoder object
 686  *
 687  * \param p_input the input thread
 688  * \param p_es the es descriptor
 689  * \param i_object_type Object type as define in include/vlc_objects.h
 690  * \return the decoder object
 691  */
 692 static decoder_t * CreateDecoder( input_thread_t *p_input,
 693                                   es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
 694 {
 695     decoder_t *p_dec;
 696     decoder_owner_sys_t *p_owner;
 697     int i;
 698
 699     p_dec = vlc_object_create( p_input, i_object_type );
 700     if( p_dec == NULL )
 701         return NULL;
 702
 703     p_dec->pf_decode_audio = NULL;
 704     p_dec->pf_decode_video = NULL;
 705     p_dec->pf_decode_sub = NULL;
 706     p_dec->pf_get_cc = NULL;
 707     p_dec->pf_packetize = NULL;
 708
 709     /* Initialize the decoder */
 710     p_dec->p_module = NULL;
 711
 712     memset( &null_es_format, 0, sizeof(es_format_t) );
 713     es_format_Copy( &p_dec->fmt_in, fmt );
 714     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 715
 716     p_dec->p_description = NULL;
 717
 718     /* Allocate our private structure for the decoder */
 719     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 720     if( p_dec->p_owner == NULL )
 721     {
 722         vlc_object_release( p_dec );
 723         return NULL;
 724     }
 725     p_dec->p_owner->i_preroll_end = -1;
 726     p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 727     p_dec->p_owner->p_input = p_input;
 728     p_dec->p_owner->p_aout = NULL;
 729     p_dec->p_owner->p_aout_input = NULL;
 730     p_dec->p_owner->p_vout = NULL;
 731     p_dec->p_owner->p_spu_vout = NULL;
 732     p_dec->p_owner->i_spu_channel = 0;
 733     p_dec->p_owner->i_spu_order = 0;
 734     p_dec->p_owner->p_sout = p_sout;
 735     p_dec->p_owner->p_sout_input = NULL;
 736     p_dec->p_owner->p_packetizer = NULL;
 737
 738     /* decoder fifo */
 739     if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
 740     {
 741         free( p_dec->p_owner );
 742         vlc_object_release( p_dec );
 743         return NULL;
 744     }
 745
 746     /* Set buffers allocation callbacks for the decoders */
 747     p_dec->pf_aout_buffer_new = aout_new_buffer;
 748     p_dec->pf_aout_buffer_del = aout_del_buffer;
 749     p_dec->pf_vout_buffer_new = vout_new_buffer;
 750     p_dec->pf_vout_buffer_del = vout_del_buffer;
 751     p_dec->pf_picture_link    = vout_link_picture;
 752     p_dec->pf_picture_unlink  = vout_unlink_picture;
 753     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 754     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 755     /* */
 756     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 757     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 758     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 759
 760     vlc_object_attach( p_dec, p_input );
 761
 762     /* Find a suitable decoder/packetizer module */
 763     if( i_object_type == VLC_OBJECT_DECODER )
 764         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 765     else
 766         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 767
 768     /* Check if decoder requires already packetized data */
 769     if( i_object_type == VLC_OBJECT_DECODER &&
 770         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 771     {
 772         p_dec->p_owner->p_packetizer =
 773             vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
 774         if( p_dec->p_owner->p_packetizer )
 775         {
 776             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
 777                             &p_dec->fmt_in );
 778
 779             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
 780                             &null_es_format );
 781
 782             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
 783
 784             p_dec->p_owner->p_packetizer->p_module =
 785                 module_need( p_dec->p_owner->p_packetizer,
 786                              "packetizer", "$packetizer", false );
 787
 788             if( !p_dec->p_owner->p_packetizer->p_module )
 789             {
 790                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
 791                 vlc_object_detach( p_dec->p_owner->p_packetizer );
 792                 vlc_object_release( p_dec->p_owner->p_packetizer );
 793             }
 794         }
 795     }
 796
 797     /* Copy ourself the input replay gain */
 798     if( fmt->i_cat == AUDIO_ES )
 799     {
 800         for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 801         {
 802             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 803             {
 804                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 805                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 806             }
 807             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 808             {
 809                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 810                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 811             }
 812         }
 813     }
 814
 815     /* */
 816     vlc_mutex_init( &p_owner->lock );
 817     vlc_cond_init( &p_owner->wait );
 818
 819     p_owner->b_fmt_description = false;
 820     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 821     p_owner->p_description = NULL;
 822
 823     p_owner->b_paused = false;
 824     p_owner->pause.i_date = 0;
 825     p_owner->pause.i_ignore = 0;
 826
 827     p_owner->b_buffering = false;
 828     p_owner->buffer.b_first = true;
 829     p_owner->buffer.b_full = false;
 830     p_owner->buffer.i_count = 0;
 831     p_owner->buffer.p_picture = NULL;
 832     p_owner->buffer.p_subpic = NULL;
 833     p_owner->buffer.p_audio = NULL;
 834     p_owner->buffer.p_block = NULL;
 835
 836     p_owner->b_flushing = false;
 837
 838     /* */
 839     p_owner->cc.b_supported = false;
 840     if( i_object_type == VLC_OBJECT_DECODER )
 841     {
 842         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 843             p_owner->cc.b_supported = true;
 844         if( p_dec->pf_get_cc )
 845             p_owner->cc.b_supported = true;
 846     }
 847
 848     for( i = 0; i < 4; i++ )
 849     {
 850         p_owner->cc.pb_present[i] = false;
 851         p_owner->cc.pp_decoder[i] = NULL;
 852     }
 853     p_owner->i_ts_delay = 0;
 854     return p_dec;
 855 }
 856
 857 /**
 858  * The decoding main loop
 859  *
 860  * \param p_dec the decoder
 861  */
 862 static void *DecoderThread( vlc_object_t *p_this )
 863 {
 864     decoder_t *p_dec = (decoder_t *)p_this;
 865     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 866
 867     /* The decoder's main loop */
 868     for( ;; )
 869     {
 870         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 871
 872         /* Make sure there is no cancellation point other than this one^^.
 873          * If you need one, be sure to push cleanup of p_block. */
 874         DecoderSignalBuffering( p_dec, p_block == NULL );
 875
 876         if( p_block )
 877         {
 878             int canc = vlc_savecancel();
 879
 880             if( p_dec->b_error )
 881                 DecoderError( p_dec, p_block );
 882             else
 883                 DecoderProcess( p_dec, p_block );
 884
 885             vlc_restorecancel( canc );
 886         }
 887     }
 888     return NULL;
 889 }
 890
 891 static void DecoderFlush( decoder_t *p_dec )
 892 {
 893     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 894     block_t *p_null;
 895
 896     vlc_assert_locked( &p_owner->lock );
 897
 898     /* Empty the fifo */
 899     block_FifoEmpty( p_owner->p_fifo );
 900
 901     /* Monitor for flush end */
 902     p_owner->b_flushing = true;
 903     vlc_cond_signal( &p_owner->wait );
 904
 905     /* Send a special block */
 906     p_null = block_New( p_dec, 128 );
 907     if( !p_null )
 908         return;
 909     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
 910     p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
 911     if( !p_dec->fmt_in.b_packetized )
 912         p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
 913     memset( p_null->p_buffer, 0, p_null->i_buffer );
 914
 915     input_DecoderDecode( p_dec, p_null );
 916
 917     /* */
 918     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 919         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
 920 }
 921
 922 static void DecoderSignalFlushed( decoder_t *p_dec )
 923 {
 924     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 925
 926     vlc_mutex_lock( &p_owner->lock );
 927
 928     if( p_owner->b_flushing )
 929     {
 930         p_owner->b_flushing = false;
 931         vlc_cond_signal( &p_owner->wait );
 932     }
 933
 934     vlc_mutex_unlock( &p_owner->lock );
 935 }
 936
 937 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 938 {
 939     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 940
 941     vlc_mutex_lock( &p_owner->lock );
 942
 943     if( p_owner->b_buffering )
 944     {
 945         if( b_full )
 946             p_owner->buffer.b_full = true;
 947         vlc_cond_signal( &p_owner->wait );
 948     }
 949
 950     vlc_mutex_unlock( &p_owner->lock );
 951 }
 952
 953 static bool DecoderIsFlushing( decoder_t *p_dec )
 954 {
 955     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 956     bool b_flushing;
 957
 958     vlc_mutex_lock( &p_owner->lock );
 959
 960     b_flushing = p_owner->b_flushing;
 961
 962     vlc_mutex_unlock( &p_owner->lock );
 963
 964     return b_flushing;
 965 }
 966
 967 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
 968 {
 969     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 970
 971     vlc_assert_locked( &p_owner->lock );
 972
 973     while( !p_owner->b_flushing )
 974     {
 975         if( p_owner->b_paused )
 976         {
 977             if( p_owner->b_buffering && !p_owner->buffer.b_full )
 978                 break;
 979             if( p_owner->pause.i_ignore > 0 )
 980             {
 981                 p_owner->pause.i_ignore--;
 982                 break;
 983             }
 984         }
 985         else
 986         {
 987             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
 988                 break;
 989         }
 990         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
 991     }
 992
 993     if( pb_reject )
 994         *pb_reject = p_owner->b_flushing;
 995 }
 996
 997 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 998 {
 999     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1000
1001     vlc_assert_locked( &p_owner->lock );
1002
1003     /* XXX only audio and video output have to be paused.
1004      * - for sout it is useless
1005      * - for subs, it is done by the vout
1006      */
1007     if( p_dec->fmt_in.i_cat == AUDIO_ES )
1008     {
1009         if( p_owner->p_aout && p_owner->p_aout_input )
1010             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1011                                  b_paused, i_date );
1012     }
1013     else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1014     {
1015         if( p_owner->p_vout )
1016             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1017     }
1018 }
1019 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1020 {
1021     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1022         *pi_preroll = INT64_MAX;
1023     else if( p->i_pts > 0 )
1024         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1025     else if( p->i_dts > 0 )
1026         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1027 }
1028
1029 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1030 {
1031     mtime_t current_date = mdate();
1032
1033     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1034     if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
1035     {
1036         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1037          * for teletext streams. */
1038         return current_date + 400000;
1039     }
1040     return i_ts;
1041 }
1042
1043 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1044                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1045 {
1046     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1047     input_clock_t   *p_clock = p_owner->p_clock;
1048
1049     vlc_assert_locked( &p_owner->lock );
1050
1051     const mtime_t i_es_delay = p_owner->i_ts_delay;
1052
1053     if( p_clock )
1054     {
1055         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1056         int i_rate;
1057
1058         if( *pi_ts0 > 0 )
1059         {
1060             *pi_ts0 += i_es_delay;
1061             if( pi_ts1 && *pi_ts1 > 0 )
1062                 *pi_ts1 += i_es_delay;
1063             input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound );
1064         }
1065         else
1066         {
1067             i_rate = input_clock_GetRate( p_clock );
1068         }
1069
1070         /* Do not create ephemere data because of rounding errors */
1071         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1072             *pi_ts1 += 1;
1073
1074         if( pi_duration )
1075             *pi_duration = ( *pi_duration * i_rate +
1076                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1077
1078         if( pi_rate )
1079             *pi_rate = i_rate;
1080
1081         if( b_telx )
1082         {
1083             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1084             if( pi_ts1 && *pi_ts1 <= 0 )
1085                 *pi_ts1 = *pi_ts0;
1086         }
1087     }
1088 }
1089
1090 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1091                               int *pi_played_sum, int *pi_lost_sum )
1092 {
1093     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1094     aout_instance_t *p_aout = p_owner->p_aout;
1095     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1096
1097     /* */
1098     if( p_audio->start_date <= 0 )
1099     {
1100         msg_Warn( p_dec, "non-dated audio buffer received" );
1101         *pi_lost_sum += 1;
1102         aout_BufferFree( p_audio );
1103         return;
1104     }
1105
1106     /* */
1107     vlc_mutex_lock( &p_owner->lock );
1108
1109     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1110     {
1111         p_audio->p_next = NULL;
1112
1113         *p_owner->buffer.pp_audio_next = p_audio;
1114         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1115
1116         p_owner->buffer.i_count++;
1117         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1118             p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1119         {
1120             p_owner->buffer.b_full = true;
1121             vlc_cond_signal( &p_owner->wait );
1122         }
1123     }
1124
1125     for( ;; )
1126     {
1127         bool b_has_more = false;
1128         bool b_reject;
1129         DecoderWaitUnblock( p_dec, &b_reject );
1130
1131         if( p_owner->b_buffering )
1132         {
1133             vlc_mutex_unlock( &p_owner->lock );
1134             return;
1135         }
1136
1137         /* */
1138         if( p_owner->buffer.p_audio )
1139         {
1140             p_audio = p_owner->buffer.p_audio;
1141
1142             p_owner->buffer.p_audio = p_audio->p_next;
1143             p_owner->buffer.i_count--;
1144
1145             b_has_more = p_owner->buffer.p_audio != NULL;
1146             if( !b_has_more )
1147                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1148         }
1149
1150         /* */
1151         const bool b_dated = p_audio->start_date > 0;
1152         int i_rate = INPUT_RATE_DEFAULT;
1153
1154         DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1155                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1156
1157         vlc_mutex_unlock( &p_owner->lock );
1158
1159         if( !p_aout || !p_aout_input ||
1160             p_audio->start_date <= 0 ||
1161             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1162             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1163             b_reject = true;
1164
1165         /* Do not wait against unprotected date */
1166         const mtime_t i_deadline = p_audio->start_date - AOUT_MAX_PREPARE_TIME;
1167         while( !b_reject && i_deadline > mdate() )
1168         {
1169             vlc_mutex_lock( &p_owner->lock );
1170             if( p_owner->b_flushing || p_dec->b_die )
1171             {
1172                 b_reject = true;
1173                 vlc_mutex_unlock( &p_owner->lock );
1174                 break;
1175             }
1176             vlc_cond_timedwait( &p_owner->wait, &p_owner->lock, i_deadline );
1177             vlc_mutex_unlock( &p_owner->lock );
1178         }
1179
1180         if( !b_reject )
1181         {
1182             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1183                 *pi_played_sum += 1;
1184             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1185         }
1186         else
1187         {
1188             if( b_dated )
1189                 msg_Warn( p_aout, "received buffer in the future" );
1190             else
1191                 msg_Warn( p_dec, "non-dated audio buffer received" );
1192
1193             *pi_lost_sum += 1;
1194             aout_BufferFree( p_audio );
1195         }
1196
1197         if( !b_has_more )
1198             break;
1199
1200         vlc_mutex_lock( &p_owner->lock );
1201         if( !p_owner->buffer.p_audio )
1202         {
1203             vlc_mutex_unlock( &p_owner->lock );
1204             break;
1205         }
1206     }
1207 }
1208
1209 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1210 {
1211     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1212     input_thread_t  *p_input = p_owner->p_input;
1213     aout_buffer_t   *p_aout_buf;
1214     int i_decoded = 0;
1215     int i_lost = 0;
1216     int i_played = 0;
1217
1218     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1219     {
1220         aout_instance_t *p_aout = p_owner->p_aout;
1221         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1222
1223         if( p_dec->b_die )
1224         {
1225             /* It prevent freezing VLC in case of broken decoder */
1226             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1227             if( p_block )
1228                 block_Release( p_block );
1229             break;
1230         }
1231         i_decoded++;
1232
1233         if( p_aout_buf->start_date < p_owner->i_preroll_end )
1234         {
1235             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1236             continue;
1237         }
1238
1239         if( p_owner->i_preroll_end > 0 )
1240         {
1241             msg_Dbg( p_dec, "End of audio preroll" );
1242             if( p_owner->p_aout && p_owner->p_aout_input )
1243                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1244             /* */
1245             p_owner->i_preroll_end = -1;
1246         }
1247
1248         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1249     }
1250
1251     /* Update ugly stat */
1252     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1253     {
1254         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1255
1256         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1257                              i_lost, NULL );
1258         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1259                              i_played, NULL );
1260         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1261                              i_decoded, NULL );
1262
1263         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1264     }
1265 }
1266 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1267 {
1268     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1269     block_t *p_cc;
1270     bool pb_present[4];
1271     int i;
1272     int i_cc_decoder;
1273
1274     assert( p_dec_cc->pf_get_cc != NULL );
1275
1276     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1277     if( !p_owner->cc.b_supported )
1278         return;
1279
1280     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1281     if( !p_cc )
1282         return;
1283
1284     vlc_mutex_lock( &p_owner->lock );
1285     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1286     {
1287         p_owner->cc.pb_present[i] |= pb_present[i];
1288         if( p_owner->cc.pp_decoder[i] )
1289             i_cc_decoder++;
1290     }
1291
1292     for( i = 0; i < 4; i++ )
1293     {
1294         if( !p_owner->cc.pp_decoder[i] )
1295             continue;
1296
1297         if( i_cc_decoder > 1 )
1298             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1299         else
1300             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1301         i_cc_decoder--;
1302     }
1303     vlc_mutex_unlock( &p_owner->lock );
1304 }
1305
1306 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1307                               int *pi_played_sum, int *pi_lost_sum )
1308 {
1309     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1310     vout_thread_t  *p_vout = p_owner->p_vout;
1311     bool b_first_buffered;
1312
1313     if( p_picture->date <= 0 )
1314     {
1315         msg_Warn( p_vout, "non-dated video buffer received" );
1316         *pi_lost_sum += 1;
1317         vout_DropPicture( p_vout, p_picture );
1318         return;
1319     }
1320
1321     /* */
1322     vlc_mutex_lock( &p_owner->lock );
1323
1324     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1325     {
1326         p_picture->p_next = NULL;
1327
1328         *p_owner->buffer.pp_picture_next = p_picture;
1329         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1330
1331         p_owner->buffer.i_count++;
1332         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1333             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1334         {
1335             p_owner->buffer.b_full = true;
1336             vlc_cond_signal( &p_owner->wait );
1337         }
1338     }
1339     b_first_buffered = p_owner->buffer.p_picture != NULL;
1340
1341     for( ;; b_first_buffered = false )
1342     {
1343         bool b_has_more = false;
1344
1345         bool b_reject;
1346
1347         DecoderWaitUnblock( p_dec, &b_reject );
1348
1349         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1350         {
1351             vlc_mutex_unlock( &p_owner->lock );
1352             return;
1353         }
1354         bool b_buffering_first = p_owner->b_buffering;
1355
1356         /* */
1357         if( p_owner->buffer.p_picture )
1358         {
1359             p_picture = p_owner->buffer.p_picture;
1360
1361             p_owner->buffer.p_picture = p_picture->p_next;
1362             p_owner->buffer.i_count--;
1363
1364             b_has_more = p_owner->buffer.p_picture != NULL;
1365             if( !b_has_more )
1366                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1367         }
1368
1369         /* */
1370         if( b_buffering_first )
1371         {
1372             assert( p_owner->buffer.b_first );
1373             assert( !p_owner->buffer.i_count );
1374             msg_Dbg( p_dec, "Received first picture" );
1375             p_owner->buffer.b_first = false;
1376             p_picture->b_force = true;
1377         }
1378
1379         const bool b_dated = p_picture->date > 0;
1380         int i_rate = INPUT_RATE_DEFAULT;
1381         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1382                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1383
1384         vlc_mutex_unlock( &p_owner->lock );
1385
1386         /* */
1387         if( !p_picture->b_force && p_picture->date <= 0 )
1388             b_reject = true;
1389
1390         if( !b_reject )
1391         {
1392             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1393             {
1394                 /* Be sure to not display old picture after our own */
1395                 vout_Flush( p_vout, p_picture->date );
1396                 p_owner->i_last_rate = i_rate;
1397             }
1398             vout_DisplayPicture( p_vout, p_picture );
1399         }
1400         else
1401         {
1402             if( b_dated )
1403                 msg_Warn( p_vout, "early picture skipped" );
1404             else
1405                 msg_Warn( p_vout, "non-dated video buffer received" );
1406
1407             *pi_lost_sum += 1;
1408             vout_DropPicture( p_vout, p_picture );
1409         }
1410         int i_tmp_display;
1411         int i_tmp_lost;
1412         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1413
1414         *pi_played_sum += i_tmp_display;
1415         *pi_lost_sum += i_tmp_lost;
1416
1417         if( !b_has_more || b_buffering_first )
1418             break;
1419
1420         vlc_mutex_lock( &p_owner->lock );
1421         if( !p_owner->buffer.p_picture )
1422         {
1423             vlc_mutex_unlock( &p_owner->lock );
1424             break;
1425         }
1426     }
1427 }
1428
1429 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1430 {
1431     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1432     input_thread_t *p_input = p_owner->p_input;
1433     picture_t      *p_pic;
1434     int i_lost = 0;
1435     int i_decoded = 0;
1436     int i_displayed = 0;
1437
1438     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1439     {
1440         vout_thread_t  *p_vout = p_owner->p_vout;
1441         if( p_dec->b_die )
1442         {
1443             /* It prevent freezing VLC in case of broken decoder */
1444             vout_DropPicture( p_vout, p_pic );
1445             if( p_block )
1446                 block_Release( p_block );
1447             break;
1448         }
1449
1450         i_decoded++;
1451
1452         if( p_pic->date < p_owner->i_preroll_end )
1453         {
1454             vout_DropPicture( p_vout, p_pic );
1455             continue;
1456         }
1457
1458         if( p_owner->i_preroll_end > 0 )
1459         {
1460             msg_Dbg( p_dec, "End of video preroll" );
1461             if( p_vout )
1462                 vout_Flush( p_vout, 1 );
1463             /* */
1464             p_owner->i_preroll_end = -1;
1465         }
1466
1467         if( p_dec->pf_get_cc &&
1468             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1469             DecoderGetCc( p_dec, p_dec );
1470
1471         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1472     }
1473     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1474     {
1475         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1476
1477         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1478                              i_decoded, NULL );
1479         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1480                              i_lost , NULL);
1481
1482         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1483                              i_displayed, NULL);
1484
1485         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1486     }
1487 }
1488
1489 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1490                             bool b_telx )
1491 {
1492     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1493     vout_thread_t *p_vout = p_owner->p_spu_vout;
1494
1495     /* */
1496     if( p_subpic->i_start <= 0 )
1497     {
1498         msg_Warn( p_dec, "non-dated spu buffer received" );
1499         subpicture_Delete( p_subpic );
1500         return;
1501     }
1502
1503     /* */
1504     vlc_mutex_lock( &p_owner->lock );
1505
1506     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1507     {
1508         p_subpic->p_next = NULL;
1509
1510         *p_owner->buffer.pp_subpic_next = p_subpic;
1511         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1512
1513         p_owner->buffer.i_count++;
1514         /* XXX it is important to be full after the first one */
1515         if( p_owner->buffer.i_count > 0 )
1516         {
1517             p_owner->buffer.b_full = true;
1518             vlc_cond_signal( &p_owner->wait );
1519         }
1520     }
1521
1522     for( ;; )
1523     {
1524         bool b_has_more = false;
1525         bool b_reject;
1526         DecoderWaitUnblock( p_dec, &b_reject );
1527
1528         if( p_owner->b_buffering )
1529         {
1530             vlc_mutex_unlock( &p_owner->lock );
1531             return;
1532         }
1533
1534         /* */
1535         if( p_owner->buffer.p_subpic )
1536         {
1537             p_subpic = p_owner->buffer.p_subpic;
1538
1539             p_owner->buffer.p_subpic = p_subpic->p_next;
1540             p_owner->buffer.i_count--;
1541
1542             b_has_more = p_owner->buffer.p_subpic != NULL;
1543             if( !b_has_more )
1544                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1545         }
1546
1547         /* */
1548         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1549                       NULL, INT64_MAX, b_telx );
1550
1551         vlc_mutex_unlock( &p_owner->lock );
1552
1553         if( !b_reject )
1554             spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1555         else
1556             subpicture_Delete( p_subpic );
1557
1558         if( !b_has_more )
1559             break;
1560         vlc_mutex_lock( &p_owner->lock );
1561         if( !p_owner->buffer.p_subpic )
1562         {
1563             vlc_mutex_unlock( &p_owner->lock );
1564             break;
1565         }
1566     }
1567 }
1568
1569 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1570                              bool b_telx )
1571 {
1572     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1573
1574     assert( p_owner->p_clock );
1575     assert( !p_sout_block->p_next );
1576
1577     vlc_mutex_lock( &p_owner->lock );
1578
1579     if( p_owner->b_buffering || p_owner->buffer.p_block )
1580     {
1581         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1582
1583         p_owner->buffer.i_count++;
1584         /* XXX it is important to be full after the first one */
1585         if( p_owner->buffer.i_count > 0 )
1586         {
1587             p_owner->buffer.b_full = true;
1588             vlc_cond_signal( &p_owner->wait );
1589         }
1590     }
1591
1592     for( ;; )
1593     {
1594         bool b_has_more = false;
1595         bool b_reject;
1596         DecoderWaitUnblock( p_dec, &b_reject );
1597
1598         if( p_owner->b_buffering )
1599         {
1600             vlc_mutex_unlock( &p_owner->lock );
1601             return;
1602         }
1603
1604         /* */
1605         if( p_owner->buffer.p_block )
1606         {
1607             p_sout_block = p_owner->buffer.p_block;
1608
1609             p_owner->buffer.p_block = p_sout_block->p_next;
1610             p_owner->buffer.i_count--;
1611
1612             b_has_more = p_owner->buffer.p_block != NULL;
1613             if( !b_has_more )
1614                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1615         }
1616         p_sout_block->p_next = NULL;
1617
1618         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1619                       &p_sout_block->i_length,
1620                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1621
1622         vlc_mutex_unlock( &p_owner->lock );
1623
1624         if( !b_reject )
1625             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1626         else
1627             block_Release( p_sout_block );
1628
1629         if( !b_has_more )
1630             break;
1631         vlc_mutex_lock( &p_owner->lock );
1632         if( !p_owner->buffer.p_block )
1633         {
1634             vlc_mutex_unlock( &p_owner->lock );
1635             break;
1636         }
1637     }
1638 }
1639
1640 /* */
1641 static void DecoderFlushBuffering( decoder_t *p_dec )
1642 {
1643     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1644
1645     vlc_assert_locked( &p_owner->lock );
1646
1647     while( p_owner->buffer.p_picture )
1648     {
1649         picture_t *p_picture = p_owner->buffer.p_picture;
1650
1651         p_owner->buffer.p_picture = p_picture->p_next;
1652         p_owner->buffer.i_count--;
1653
1654         if( p_owner->p_vout )
1655             vout_DropPicture( p_owner->p_vout, p_picture );
1656
1657         if( !p_owner->buffer.p_picture )
1658             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1659     }
1660     while( p_owner->buffer.p_audio )
1661     {
1662         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1663
1664         p_owner->buffer.p_audio = p_audio->p_next;
1665         p_owner->buffer.i_count--;
1666
1667         aout_BufferFree( p_audio );
1668
1669         if( !p_owner->buffer.p_audio )
1670             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1671     }
1672     while( p_owner->buffer.p_subpic )
1673     {
1674         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1675
1676         p_owner->buffer.p_subpic = p_subpic->p_next;
1677         p_owner->buffer.i_count--;
1678
1679         subpicture_Delete( p_subpic );
1680
1681         if( !p_owner->buffer.p_subpic )
1682             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1683     }
1684     if( p_owner->buffer.p_block )
1685     {
1686         block_ChainRelease( p_owner->buffer.p_block );
1687
1688         p_owner->buffer.i_count = 0;
1689         p_owner->buffer.p_block = NULL;
1690         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1691     }
1692 }
1693
1694 /* This function process a block for sout
1695  */
1696 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1697 {
1698     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1699     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1700     block_t *p_sout_block;
1701
1702     while( ( p_sout_block =
1703                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1704     {
1705         if( !p_owner->p_sout_input )
1706         {
1707             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1708
1709             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1710             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1711             if( p_dec->fmt_in.psz_language )
1712             {
1713                 if( p_owner->sout.psz_language )
1714                     free( p_owner->sout.psz_language );
1715                 p_owner->sout.psz_language =
1716                     strdup( p_dec->fmt_in.psz_language );
1717             }
1718
1719             p_owner->p_sout_input =
1720                 sout_InputNew( p_owner->p_sout,
1721                                &p_owner->sout );
1722
1723             if( p_owner->p_sout_input == NULL )
1724             {
1725                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1726                          (char *)&p_owner->sout.i_codec );
1727                 p_dec->b_error = true;
1728
1729                 while( p_sout_block )
1730                 {
1731                     block_t *p_next = p_sout_block->p_next;
1732                     block_Release( p_sout_block );
1733                     p_sout_block = p_next;
1734                 }
1735                 break;
1736             }
1737         }
1738
1739         while( p_sout_block )
1740         {
1741             block_t *p_next = p_sout_block->p_next;
1742
1743             p_sout_block->p_next = NULL;
1744
1745             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1746
1747             p_sout_block = p_next;
1748         }
1749
1750         /* For now it's enough, as only sout impact on this flag */
1751         if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1752             p_owner->p_input->p->b_out_pace_control )
1753         {
1754             msg_Dbg( p_dec, "switching to sync mode" );
1755             p_owner->p_input->p->b_out_pace_control = false;
1756         }
1757         else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1758                  !p_owner->p_input->p->b_out_pace_control )
1759         {
1760             msg_Dbg( p_dec, "switching to async mode" );
1761             p_owner->p_input->p->b_out_pace_control = true;
1762         }
1763     }
1764 }
1765
1766 /* This function process a video block
1767  */
1768 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1769 {
1770     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1771
1772     if( p_owner->p_packetizer )
1773     {
1774         block_t *p_packetized_block;
1775         decoder_t *p_packetizer = p_owner->p_packetizer;
1776
1777         while( (p_packetized_block =
1778                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1779         {
1780             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1781             {
1782                 es_format_Clean( &p_dec->fmt_in );
1783                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1784             }
1785             if( p_packetizer->pf_get_cc )
1786                 DecoderGetCc( p_dec, p_packetizer );
1787
1788             while( p_packetized_block )
1789             {
1790                 block_t *p_next = p_packetized_block->p_next;
1791                 p_packetized_block->p_next = NULL;
1792
1793                 DecoderDecodeVideo( p_dec, p_packetized_block );
1794
1795                 p_packetized_block = p_next;
1796             }
1797         }
1798     }
1799     else if( p_block )
1800     {
1801         DecoderDecodeVideo( p_dec, p_block );
1802     }
1803
1804     if( b_flush && p_owner->p_vout )
1805         vout_Flush( p_owner->p_vout, 1 );
1806 }
1807
1808 /* This function process a audio block
1809  */
1810 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1811 {
1812     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1813
1814     if( p_owner->p_packetizer )
1815     {
1816         block_t *p_packetized_block;
1817         decoder_t *p_packetizer = p_owner->p_packetizer;
1818
1819         while( (p_packetized_block =
1820                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1821         {
1822             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1823             {
1824                 es_format_Clean( &p_dec->fmt_in );
1825                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1826             }
1827
1828             while( p_packetized_block )
1829             {
1830                 block_t *p_next = p_packetized_block->p_next;
1831                 p_packetized_block->p_next = NULL;
1832
1833                 DecoderDecodeAudio( p_dec, p_packetized_block );
1834
1835                 p_packetized_block = p_next;
1836             }
1837         }
1838     }
1839     else if( p_block )
1840     {
1841         DecoderDecodeAudio( p_dec, p_block );
1842     }
1843
1844     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1845         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1846 }
1847
1848 /* This function process a subtitle block
1849  */
1850 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1851 {
1852     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1853     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1854
1855     input_thread_t *p_input = p_owner->p_input;
1856     vout_thread_t *p_vout;
1857     subpicture_t *p_spu;
1858
1859     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1860     {
1861         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1862         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1863         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1864
1865         p_vout = input_ressource_HoldVout( p_input->p->p_ressource );
1866         if( p_vout && p_owner->p_spu_vout == p_vout )
1867         {
1868             /* Preroll does not work very well with subtitle */
1869             if( p_spu->i_start > 0 &&
1870                 p_spu->i_start < p_owner->i_preroll_end &&
1871                 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1872             {
1873                 subpicture_Delete( p_spu );
1874             }
1875             else
1876             {
1877                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1878             }
1879         }
1880         else
1881         {
1882             subpicture_Delete( p_spu );
1883         }
1884         if( p_vout )
1885             vlc_object_release( p_vout );
1886     }
1887
1888     if( b_flush && p_owner->p_spu_vout )
1889     {
1890         p_vout = input_ressource_HoldVout( p_input->p->p_ressource );
1891
1892         if( p_vout && p_owner->p_spu_vout == p_vout )
1893             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1894                          p_owner->i_spu_channel );
1895
1896         if( p_vout )
1897             vlc_object_release( p_vout );
1898     }
1899 }
1900
1901 /* */
1902 static void DecoderProcessOnFlush( decoder_t *p_dec )
1903 {
1904     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1905
1906     vlc_mutex_lock( &p_owner->lock );
1907     DecoderFlushBuffering( p_dec );
1908     vlc_mutex_unlock( &p_owner->lock );
1909
1910     DecoderSignalFlushed( p_dec );
1911 }
1912 /**
1913  * Decode a block
1914  *
1915  * \param p_dec the decoder object
1916  * \param p_block the block to decode
1917  * \return VLC_SUCCESS or an error code
1918  */
1919 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1920 {
1921     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1922     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1923
1924     if( p_block && p_block->i_buffer <= 0 )
1925     {
1926         assert( !b_flush_request );
1927         block_Release( p_block );
1928         return;
1929     }
1930
1931 #ifdef ENABLE_SOUT
1932     if( vlc_internals( p_dec )->i_object_type == VLC_OBJECT_PACKETIZER )
1933     {
1934         if( p_block )
1935             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1936
1937         DecoderProcessSout( p_dec, p_block );
1938     }
1939     else
1940 #endif
1941     {
1942         bool b_flush = false;
1943
1944         if( p_block )
1945         {
1946             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1947             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1948
1949             b_flush = !b_flushing && b_flush_request;
1950
1951             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1952         }
1953
1954         if( p_dec->fmt_in.i_cat == AUDIO_ES )
1955         {
1956             DecoderProcessAudio( p_dec, p_block, b_flush );
1957         }
1958         else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1959         {
1960             DecoderProcessVideo( p_dec, p_block, b_flush );
1961         }
1962         else if( p_dec->fmt_in.i_cat == SPU_ES )
1963         {
1964             DecoderProcessSpu( p_dec, p_block, b_flush );
1965         }
1966         else
1967         {
1968             msg_Err( p_dec, "unknown ES format" );
1969             p_dec->b_error = true;
1970         }
1971     }
1972
1973     /* */
1974     if( b_flush_request )
1975         DecoderProcessOnFlush( p_dec );
1976 }
1977
1978 static void DecoderError( decoder_t *p_dec, block_t *p_block )
1979 {
1980     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1981
1982     /* */
1983     if( p_block )
1984         block_Release( p_block );
1985
1986     if( b_flush_request )
1987         DecoderProcessOnFlush( p_dec );
1988 }
1989
1990
1991 /**
1992  * Destroys a decoder object
1993  *
1994  * \param p_dec the decoder object
1995  * \return nothing
1996  */
1997 static void DeleteDecoder( decoder_t * p_dec )
1998 {
1999     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2000
2001     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2002              (char*)&p_dec->fmt_in.i_codec,
2003              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2004
2005     /* Free all packets still in the decoder fifo. */
2006     block_FifoEmpty( p_owner->p_fifo );
2007     block_FifoRelease( p_owner->p_fifo );
2008
2009     /* */
2010     vlc_mutex_lock( &p_owner->lock );
2011     DecoderFlushBuffering( p_dec );
2012     vlc_mutex_unlock( &p_owner->lock );
2013
2014     /* Cleanup */
2015     if( p_owner->p_aout_input )
2016         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2017     if( p_owner->p_aout )
2018     {
2019         input_ressource_RequestAout( p_owner->p_input->p->p_ressource,
2020                                      p_owner->p_aout );
2021         input_SendEventAout( p_owner->p_input );
2022         p_owner->p_aout = NULL;
2023     }
2024     if( p_owner->p_vout )
2025     {
2026         /* Hack to make sure all the the pictures are freed by the decoder
2027          * and that the vout is not paused anymore */
2028         vout_FixLeaks( p_owner->p_vout, true );
2029         if( p_owner->b_paused )
2030             vout_ChangePause( p_owner->p_vout, false, mdate() );
2031
2032         /* */
2033         input_ressource_RequestVout( p_owner->p_input->p->p_ressource, p_owner->p_vout, NULL, true );
2034         input_SendEventVout( p_owner->p_input );
2035     }
2036
2037 #ifdef ENABLE_SOUT
2038     if( p_owner->p_sout_input )
2039     {
2040         sout_InputDelete( p_owner->p_sout_input );
2041         es_format_Clean( &p_owner->sout );
2042     }
2043 #endif
2044
2045     if( p_dec->fmt_in.i_cat == SPU_ES )
2046     {
2047         vout_thread_t *p_vout;
2048
2049         p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
2050         if( p_vout )
2051         {
2052             if( p_owner->p_spu_vout == p_vout )
2053                 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2054             vlc_object_release( p_vout );
2055         }
2056     }
2057
2058     es_format_Clean( &p_dec->fmt_in );
2059     es_format_Clean( &p_dec->fmt_out );
2060     if( p_dec->p_description )
2061         vlc_meta_Delete( p_dec->p_description );
2062     es_format_Clean( &p_owner->fmt_description );
2063     if( p_owner->p_description )
2064         vlc_meta_Delete( p_owner->p_description );
2065
2066     if( p_owner->p_packetizer )
2067     {
2068         module_unneed( p_owner->p_packetizer,
2069                        p_owner->p_packetizer->p_module );
2070         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2071         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2072         if( p_owner->p_packetizer->p_description )
2073             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2074         vlc_object_detach( p_owner->p_packetizer );
2075         vlc_object_release( p_owner->p_packetizer );
2076     }
2077
2078     vlc_cond_destroy( &p_owner->wait );
2079     vlc_mutex_destroy( &p_owner->lock );
2080
2081     vlc_object_detach( p_dec );
2082
2083     free( p_owner );
2084 }
2085
2086 /*****************************************************************************
2087  * Buffers allocation callbacks for the decoders
2088  *****************************************************************************/
2089 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2090 {
2091     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2092
2093     vlc_assert_locked( &p_owner->lock );
2094
2095     p_owner->b_fmt_description = true;
2096
2097     /* Copy es_format */
2098     es_format_Clean( &p_owner->fmt_description );
2099     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2100
2101     /* Move p_description */
2102     if( p_owner->p_description && p_dec->p_description )
2103         vlc_meta_Delete( p_owner->p_description );
2104     p_owner->p_description = p_dec->p_description;
2105     p_dec->p_description = NULL;
2106 }
2107 static vout_thread_t *aout_request_vout( void *p_private,
2108                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2109 {
2110     decoder_t *p_dec = p_private;
2111     input_thread_t *p_input = p_dec->p_owner->p_input;
2112
2113     p_vout = input_ressource_RequestVout( p_input->p->p_ressource, p_vout, p_fmt, b_recyle );
2114     input_SendEventVout( p_input );
2115
2116     return p_vout;
2117 }
2118
2119 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2120 {
2121     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2122     aout_buffer_t *p_buffer;
2123
2124     if( p_owner->p_aout_input != NULL &&
2125         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2126           p_dec->fmt_out.audio.i_original_channels !=
2127               p_owner->audio.i_original_channels ||
2128           p_dec->fmt_out.audio.i_bytes_per_frame !=
2129               p_owner->audio.i_bytes_per_frame ) )
2130     {
2131         aout_input_t *p_aout_input = p_owner->p_aout_input;
2132
2133         /* Parameters changed, restart the aout */
2134         vlc_mutex_lock( &p_owner->lock );
2135
2136         DecoderFlushBuffering( p_dec );
2137
2138         p_owner->p_aout_input = NULL;
2139         aout_DecDelete( p_owner->p_aout, p_aout_input );
2140
2141         vlc_mutex_unlock( &p_owner->lock );
2142     }
2143
2144     if( p_owner->p_aout_input == NULL )
2145     {
2146         const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2147         audio_sample_format_t format;
2148         aout_input_t *p_aout_input;
2149         aout_instance_t *p_aout;
2150         aout_request_vout_t request_vout;
2151
2152         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2153         p_owner->audio = p_dec->fmt_out.audio;
2154
2155         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2156         if( i_force_dolby &&
2157             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2158                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2159         {
2160             if( i_force_dolby == 1 )
2161             {
2162                 format.i_original_channels = format.i_original_channels |
2163                                              AOUT_CHAN_DOLBYSTEREO;
2164             }
2165             else /* i_force_dolby == 2 */
2166             {
2167                 format.i_original_channels = format.i_original_channels &
2168                                              ~AOUT_CHAN_DOLBYSTEREO;
2169             }
2170         }
2171
2172         request_vout.pf_request_vout = aout_request_vout;
2173         request_vout.p_private = p_dec;
2174
2175         p_aout = p_owner->p_aout;
2176         if( !p_aout )
2177             p_aout = input_ressource_RequestAout( p_owner->p_input->p->p_ressource, NULL );
2178         p_aout_input = aout_DecNew( p_dec, &p_aout,
2179                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2180
2181         vlc_mutex_lock( &p_owner->lock );
2182
2183         p_owner->p_aout = p_aout;
2184         p_owner->p_aout_input = p_aout_input;
2185         DecoderUpdateFormatLocked( p_dec );
2186
2187         vlc_mutex_unlock( &p_owner->lock );
2188
2189         input_SendEventAout( p_owner->p_input );
2190
2191         if( p_owner->p_aout_input == NULL )
2192         {
2193             msg_Err( p_dec, "failed to create audio output" );
2194             p_dec->b_error = true;
2195             return NULL;
2196         }
2197         p_dec->fmt_out.audio.i_bytes_per_frame =
2198             p_owner->audio.i_bytes_per_frame;
2199     }
2200
2201     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2202
2203     return p_buffer;
2204 }
2205
2206 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2207 {
2208     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2209
2210     aout_DecDeleteBuffer( p_owner->p_aout,
2211                           p_owner->p_aout_input, p_buffer );
2212 }
2213
2214
2215 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2216
2217 static picture_t *vout_new_buffer( decoder_t *p_dec )
2218 {
2219     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2220
2221     if( p_owner->p_vout == NULL ||
2222         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2223         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2224         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2225         p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2226     {
2227         vout_thread_t *p_vout;
2228
2229         if( !p_dec->fmt_out.video.i_width ||
2230             !p_dec->fmt_out.video.i_height )
2231         {
2232             /* Can't create a new vout without display size */
2233             return NULL;
2234         }
2235
2236         if( !p_dec->fmt_out.video.i_visible_width ||
2237             !p_dec->fmt_out.video.i_visible_height )
2238         {
2239             if( p_dec->fmt_in.video.i_visible_width &&
2240                 p_dec->fmt_in.video.i_visible_height )
2241             {
2242                 p_dec->fmt_out.video.i_visible_width =
2243                     p_dec->fmt_in.video.i_visible_width;
2244                 p_dec->fmt_out.video.i_visible_height =
2245                     p_dec->fmt_in.video.i_visible_height;
2246             }
2247             else
2248             {
2249                 p_dec->fmt_out.video.i_visible_width =
2250                     p_dec->fmt_out.video.i_width;
2251                 p_dec->fmt_out.video.i_visible_height =
2252                     p_dec->fmt_out.video.i_height;
2253             }
2254         }
2255
2256         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2257             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2258         {
2259             p_dec->fmt_out.video.i_visible_height = 1080;
2260             p_dec->fmt_out.video.i_sar_num *= 135;
2261             p_dec->fmt_out.video.i_sar_den *= 136;
2262             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2263         }
2264
2265         if( !p_dec->fmt_out.video.i_sar_num ||
2266             !p_dec->fmt_out.video.i_sar_den )
2267         {
2268             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2269               p_dec->fmt_out.video.i_visible_height;
2270
2271             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2272               p_dec->fmt_out.video.i_visible_width;
2273         }
2274
2275         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2276                      &p_dec->fmt_out.video.i_sar_den,
2277                      p_dec->fmt_out.video.i_sar_num,
2278                      p_dec->fmt_out.video.i_sar_den, 50000 );
2279
2280         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2281         p_owner->video = p_dec->fmt_out.video;
2282
2283         vlc_mutex_lock( &p_owner->lock );
2284
2285         DecoderFlushBuffering( p_dec );
2286
2287         p_vout = p_owner->p_vout;
2288         p_owner->p_vout = NULL;
2289         vlc_mutex_unlock( &p_owner->lock );
2290
2291         p_vout = input_ressource_RequestVout( p_owner->p_input->p->p_ressource,
2292                                               p_vout, &p_dec->fmt_out.video, true );
2293
2294         vlc_mutex_lock( &p_owner->lock );
2295         p_owner->p_vout = p_vout;
2296
2297         DecoderUpdateFormatLocked( p_dec );
2298
2299         vlc_mutex_unlock( &p_owner->lock );
2300
2301         input_SendEventVout( p_owner->p_input );
2302         if( p_vout == NULL )
2303         {
2304             msg_Err( p_dec, "failed to create video output" );
2305             p_dec->b_error = true;
2306             return NULL;
2307         }
2308
2309         if( p_owner->video.i_rmask )
2310             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2311         if( p_owner->video.i_gmask )
2312             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2313         if( p_owner->video.i_bmask )
2314             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2315     }
2316
2317     /* Get a new picture
2318      */
2319     for( ;; )
2320     {
2321         picture_t *p_picture;
2322
2323         if( p_dec->b_die || p_dec->b_error )
2324             return NULL;
2325
2326         /* The video filter chain required that there is always 1 free buffer
2327          * that it will use as temporary one. It will release the temporary
2328          * buffer once its work is done, so this check is safe even if we don't
2329          * lock around both count() and create().
2330          */
2331         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2332         {
2333             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2334             if( p_picture )
2335                 return p_picture;
2336         }
2337
2338         if( DecoderIsFlushing( p_dec ) )
2339             return NULL;
2340
2341         /* */
2342         DecoderSignalBuffering( p_dec, true );
2343
2344         /* Check the decoder doesn't leak pictures */
2345         vout_FixLeaks( p_owner->p_vout, false );
2346
2347         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2348         msleep( VOUT_OUTMEM_SLEEP );
2349     }
2350 }
2351
2352 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2353 {
2354     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2355 }
2356
2357 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2358 {
2359     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2360 }
2361
2362 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2363 {
2364     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2365 }
2366
2367 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2368 {
2369     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2370     vout_thread_t *p_vout = NULL;
2371     subpicture_t *p_subpic;
2372     int i_attempts = 30;
2373
2374     while( i_attempts-- )
2375     {
2376         if( p_dec->b_die || p_dec->b_error )
2377             break;
2378
2379         p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
2380         if( p_vout )
2381             break;
2382
2383         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2384     }
2385
2386     if( !p_vout )
2387     {
2388         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2389         return NULL;
2390     }
2391
2392     if( p_owner->p_spu_vout != p_vout )
2393     {
2394         vlc_mutex_lock( &p_owner->lock );
2395
2396         DecoderFlushBuffering( p_dec );
2397
2398         vlc_mutex_unlock( &p_owner->lock );
2399
2400         spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2401                      &p_owner->i_spu_channel );
2402         p_owner->i_spu_order = 0;
2403         p_owner->p_spu_vout = p_vout;
2404     }
2405
2406     p_subpic = subpicture_New();
2407     if( p_subpic )
2408     {
2409         p_subpic->i_channel = p_owner->i_spu_channel;
2410         p_subpic->i_order = p_owner->i_spu_order++;
2411         p_subpic->b_subtitle = true;
2412     }
2413
2414     vlc_object_release( p_vout );
2415
2416     return p_subpic;
2417 }
2418
2419 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2420 {
2421     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2422     vout_thread_t *p_vout = NULL;
2423
2424     p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
2425     if( !p_vout || p_owner->p_spu_vout != p_vout )
2426     {
2427         if( p_vout )
2428             vlc_object_release( p_vout );
2429         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2430         return;
2431     }
2432
2433     subpicture_Delete( p_subpic );
2434
2435     vlc_object_release( p_vout );
2436 }
2437