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

   1 /*****************************************************************************
   2  * decoder.c: Functions for the management of decoders
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Laurent Aimar <fenrir@via.ecp.fr>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32 #include <assert.h>
  33
  34 #include <vlc_common.h>
  35
  36 #include <vlc_block.h>
  37 #include <vlc_vout.h>
  38 #include <vlc_aout.h>
  39 #include <vlc_sout.h>
  40 #include <vlc_codec.h>
  41 #include <vlc_spu.h>
  42 #include <vlc_meta.h>
  43 #include <vlc_dialog.h>
  44 #include <vlc_modules.h>
  45
  46 #include "audio_output/aout_internal.h"
  47 #include "stream_output/stream_output.h"
  48 #include "input_internal.h"
  49 #include "clock.h"
  50 #include "decoder.h"
  51 #include "event.h"
  52 #include "resource.h"
  53
  54 #include "../video_output/vout_control.h"
  55
  56 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, bool,
  57                                  sout_instance_t *p_sout );
  58 static void       DeleteDecoder( decoder_t * );
  59
  60 static void      *DecoderThread( vlc_object_t * );
  61 static void       DecoderProcess( decoder_t *, block_t * );
  62 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
  63 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
  64 static void       DecoderFlush( decoder_t * );
  65 static void       DecoderSignalBuffering( decoder_t *, bool );
  66 static void       DecoderFlushBuffering( decoder_t * );
  67
  68 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
  69
  70 /* Buffers allocation callbacks for the decoders */
  71 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  72 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  73
  74 static picture_t *vout_new_buffer( decoder_t * );
  75 static void vout_del_buffer( decoder_t *, picture_t * );
  76 static void vout_link_picture( decoder_t *, picture_t * );
  77 static void vout_unlink_picture( decoder_t *, picture_t * );
  78
  79 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
  80 static void spu_del_buffer( decoder_t *, subpicture_t * );
  81
  82 struct decoder_owner_sys_t
  83 {
  84     int64_t         i_preroll_end;
  85
  86     input_thread_t  *p_input;
  87     input_resource_t*p_resource;
  88     input_clock_t   *p_clock;
  89     int             i_last_rate;
  90
  91     vout_thread_t   *p_spu_vout;
  92     int              i_spu_channel;
  93     int64_t          i_spu_order;
  94
  95     sout_instance_t         *p_sout;
  96     sout_packetizer_input_t *p_sout_input;
  97
  98     /* Some decoders require already packetized data (ie. not truncated) */
  99     decoder_t *p_packetizer;
 100     bool b_packetizer;
 101
 102     /* Current format in use by the output */
 103     video_format_t video;
 104     audio_format_t audio;
 105     es_format_t    sout;
 106
 107     /* */
 108     bool           b_fmt_description;
 109     es_format_t    fmt_description;
 110     vlc_meta_t     *p_description;
 111
 112     /* fifo */
 113     block_fifo_t *p_fifo;
 114
 115     /* Lock for communication with decoder thread */
 116     vlc_mutex_t lock;
 117     vlc_cond_t  wait_request;
 118     vlc_cond_t  wait_acknowledge;
 119
 120     /* -- These variables need locking on write(only) -- */
 121     aout_instance_t *p_aout;
 122     aout_input_t    *p_aout_input;
 123
 124     vout_thread_t   *p_vout;
 125
 126     /* -- Theses variables need locking on read *and* write -- */
 127     /* */
 128     /* Pause */
 129     bool b_paused;
 130     struct
 131     {
 132         mtime_t i_date;
 133         int     i_ignore;
 134     } pause;
 135
 136     /* Buffering */
 137     bool b_buffering;
 138     struct
 139     {
 140         bool b_first;
 141         bool b_full;
 142         int  i_count;
 143
 144         picture_t     *p_picture;
 145         picture_t     **pp_picture_next;
 146
 147         subpicture_t  *p_subpic;
 148         subpicture_t  **pp_subpic_next;
 149
 150         aout_buffer_t *p_audio;
 151         aout_buffer_t **pp_audio_next;
 152
 153         block_t       *p_block;
 154         block_t       **pp_block_next;
 155     } buffer;
 156
 157     /* Flushing */
 158     bool b_flushing;
 159
 160     /* CC */
 161     struct
 162     {
 163         bool b_supported;
 164         bool pb_present[4];
 165         decoder_t *pp_decoder[4];
 166     } cc;
 167
 168     /* Delay */
 169     mtime_t i_ts_delay;
 170 };
 171
 172 #define DECODER_MAX_BUFFERING_COUNT (4)
 173 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
 174 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
 175
 176 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
 177  * a bogus PTS and won't be displayed */
 178 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
 179
 180 /* */
 181 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
 182
 183
 184 /*****************************************************************************
 185  * Public functions
 186  *****************************************************************************/
 187 picture_t *decoder_NewPicture( decoder_t *p_decoder )
 188 {
 189     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
 190     if( !p_picture )
 191         msg_Warn( p_decoder, "can't get output picture" );
 192     return p_picture;
 193 }
 194 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
 195 {
 196     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
 197 }
 198 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 199 {
 200     p_decoder->pf_picture_link( p_decoder, p_picture );
 201 }
 202 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 203 {
 204     p_decoder->pf_picture_unlink( p_decoder, p_picture );
 205 }
 206
 207 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
 208 {
 209     if( !p_decoder->pf_aout_buffer_new )
 210         return NULL;
 211     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
 212 }
 213 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
 214 {
 215     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
 216 }
 217
 218 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
 219                                      const subpicture_updater_t *p_dyn )
 220 {
 221     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
 222     if( !p_subpicture )
 223         msg_Warn( p_decoder, "can't get output subpicture" );
 224     return p_subpicture;
 225 }
 226
 227 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
 228 {
 229     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
 230 }
 231
 232 /* decoder_GetInputAttachments:
 233  */
 234 int decoder_GetInputAttachments( decoder_t *p_dec,
 235                                  input_attachment_t ***ppp_attachment,
 236                                  int *pi_attachment )
 237 {
 238     if( !p_dec->pf_get_attachments )
 239         return VLC_EGENERIC;
 240
 241     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
 242 }
 243 /* decoder_GetDisplayDate:
 244  */
 245 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 246 {
 247     if( !p_dec->pf_get_display_date )
 248         return VLC_TS_INVALID;
 249
 250     return p_dec->pf_get_display_date( p_dec, i_ts );
 251 }
 252 /* decoder_GetDisplayRate:
 253  */
 254 int decoder_GetDisplayRate( decoder_t *p_dec )
 255 {
 256     if( !p_dec->pf_get_display_rate )
 257         return INPUT_RATE_DEFAULT;
 258
 259     return p_dec->pf_get_display_rate( p_dec );
 260 }
 261
 262 /**
 263  * Spawns a new decoder thread
 264  *
 265  * \param p_input the input thread
 266  * \param p_es the es descriptor
 267  * \return the spawned decoder object
 268  */
 269 decoder_t *input_DecoderNew( input_thread_t *p_input,
 270                              es_format_t *fmt, input_clock_t *p_clock,
 271                              sout_instance_t *p_sout  )
 272 {
 273     decoder_t *p_dec = NULL;
 274     const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
 275     int i_priority;
 276
 277     /* Create the decoder configuration structure */
 278     p_dec = CreateDecoder( p_input, fmt, p_sout != NULL, p_sout );
 279     if( p_dec == NULL )
 280     {
 281         msg_Err( p_input, "could not create %s", psz_type );
 282         dialog_Fatal( p_input, _("Streaming / Transcoding failed"),
 283                       _("VLC could not open the %s module."),
 284                       vlc_gettext( psz_type ) );
 285         return NULL;
 286     }
 287
 288     if( !p_dec->p_module )
 289     {
 290         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 291
 292         DeleteDecoder( p_dec );
 293         return NULL;
 294     }
 295
 296     p_dec->p_owner->p_clock = p_clock;
 297     assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
 298
 299     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 300         i_priority = VLC_THREAD_PRIORITY_AUDIO;
 301     else
 302         i_priority = VLC_THREAD_PRIORITY_VIDEO;
 303
 304     /* Spawn the decoder thread */
 305     if( vlc_thread_create( p_dec, DecoderThread, i_priority ) )
 306     {
 307         msg_Err( p_dec, "cannot spawn decoder thread" );
 308         module_unneed( p_dec, p_dec->p_module );
 309         DeleteDecoder( p_dec );
 310         return NULL;
 311     }
 312
 313     return p_dec;
 314 }
 315
 316 /**
 317  * Kills a decoder thread and waits until it's finished
 318  *
 319  * \param p_input the input thread
 320  * \param p_es the es descriptor
 321  * \return nothing
 322  */
 323 void input_DecoderDelete( decoder_t *p_dec )
 324 {
 325     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 326
 327     vlc_object_kill( p_dec );
 328
 329     /* Make sure we aren't paused/buffering/waiting anymore */
 330     vlc_mutex_lock( &p_owner->lock );
 331     const bool b_was_paused = p_owner->b_paused;
 332     p_owner->b_paused = false;
 333     p_owner->b_buffering = false;
 334     p_owner->b_flushing = true;
 335     vlc_cond_signal( &p_owner->wait_request );
 336     vlc_mutex_unlock( &p_owner->lock );
 337
 338     vlc_thread_join( p_dec );
 339     p_owner->b_paused = b_was_paused;
 340
 341     module_unneed( p_dec, p_dec->p_module );
 342
 343     /* */
 344     if( p_dec->p_owner->cc.b_supported )
 345     {
 346         int i;
 347         for( i = 0; i < 4; i++ )
 348             input_DecoderSetCcState( p_dec, false, i );
 349     }
 350
 351     /* Delete decoder */
 352     DeleteDecoder( p_dec );
 353 }
 354
 355 /**
 356  * Put a block_t in the decoder's fifo.
 357  * Thread-safe w.r.t. the decoder. May be a cancellation point.
 358  *
 359  * \param p_dec the decoder object
 360  * \param p_block the data block
 361  */
 362 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
 363 {
 364     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 365
 366     if( b_do_pace )
 367     {
 368         /* The fifo is not consummed when buffering and so will
 369          * deadlock vlc.
 370          * There is no need to lock as b_buffering is never modify
 371          * inside decoder thread. */
 372         if( !p_owner->b_buffering )
 373             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
 374     }
 375 #ifdef __arm__
 376     else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
 377 #else
 378     else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
 379 #endif
 380     {
 381         /* FIXME: ideally we would check the time amount of data
 382          * in the FIFO instead of its size. */
 383         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 384                   "consumed quickly enough), resetting fifo!" );
 385         block_FifoEmpty( p_owner->p_fifo );
 386     }
 387
 388     block_FifoPut( p_owner->p_fifo, p_block );
 389 }
 390
 391 bool input_DecoderIsEmpty( decoder_t * p_dec )
 392 {
 393     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 394     assert( !p_owner->b_buffering );
 395
 396     bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
 397     if( b_empty )
 398     {
 399         vlc_mutex_lock( &p_owner->lock );
 400         /* TODO subtitles support */
 401         if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
 402             b_empty = vout_IsEmpty( p_owner->p_vout );
 403         else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout && p_owner->p_aout_input )
 404             b_empty = aout_InputIsEmpty( p_owner->p_aout, p_owner->p_aout_input );
 405         vlc_mutex_unlock( &p_owner->lock );
 406     }
 407     return b_empty;
 408 }
 409
 410 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
 411 {
 412     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 413     int i;
 414
 415     vlc_mutex_lock( &p_owner->lock );
 416     for( i = 0; i < 4; i++ )
 417         pb_present[i] =  p_owner->cc.pb_present[i];
 418     vlc_mutex_unlock( &p_owner->lock );
 419 }
 420 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
 421 {
 422     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 423
 424     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
 425
 426     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 427         return VLC_EGENERIC;
 428
 429     if( b_decode )
 430     {
 431         static const vlc_fourcc_t fcc[4] = {
 432             VLC_FOURCC('c', 'c', '1', ' '),
 433             VLC_FOURCC('c', 'c', '2', ' '),
 434             VLC_FOURCC('c', 'c', '3', ' '),
 435             VLC_FOURCC('c', 'c', '4', ' '),
 436         };
 437         decoder_t *p_cc;
 438         es_format_t fmt;
 439
 440         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
 441         p_cc = CreateDecoder( p_owner->p_input, &fmt, false, p_owner->p_sout );
 442         if( !p_cc )
 443         {
 444             msg_Err( p_dec, "could not create decoder" );
 445             dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
 446                           _("VLC could not open the decoder module.") );
 447             return VLC_EGENERIC;
 448         }
 449         else if( !p_cc->p_module )
 450         {
 451             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
 452             DeleteDecoder( 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         }
 476     }
 477     return VLC_SUCCESS;
 478 }
 479 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
 480 {
 481     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 482
 483     *pb_decode = false;
 484     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 485         return VLC_EGENERIC;
 486
 487     vlc_mutex_lock( &p_owner->lock );
 488     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
 489     vlc_mutex_unlock( &p_owner->lock );
 490     return VLC_EGENERIC;
 491 }
 492
 493 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 494 {
 495     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 496
 497     vlc_mutex_lock( &p_owner->lock );
 498
 499     assert( !p_owner->b_paused || !b_paused );
 500
 501     p_owner->b_paused = b_paused;
 502     p_owner->pause.i_date = i_date;
 503     p_owner->pause.i_ignore = 0;
 504     vlc_cond_signal( &p_owner->wait_request );
 505
 506     DecoderOutputChangePause( p_dec, b_paused, i_date );
 507
 508     vlc_mutex_unlock( &p_owner->lock );
 509 }
 510
 511 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
 512 {
 513     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 514
 515     vlc_mutex_lock( &p_owner->lock );
 516     p_owner->i_ts_delay = i_delay;
 517     vlc_mutex_unlock( &p_owner->lock );
 518 }
 519
 520 void input_DecoderStartBuffering( decoder_t *p_dec )
 521 {
 522     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 523
 524     vlc_mutex_lock( &p_owner->lock );
 525
 526     DecoderFlush( p_dec );
 527
 528     p_owner->buffer.b_first = true;
 529     p_owner->buffer.b_full = false;
 530     p_owner->buffer.i_count = 0;
 531
 532     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
 533             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
 534
 535     p_owner->buffer.p_picture = NULL;
 536     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
 537
 538     p_owner->buffer.p_subpic = NULL;
 539     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
 540
 541     p_owner->buffer.p_audio = NULL;
 542     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
 543
 544     p_owner->buffer.p_block = NULL;
 545     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
 546
 547
 548     p_owner->b_buffering = true;
 549
 550     vlc_cond_signal( &p_owner->wait_request );
 551
 552     vlc_mutex_unlock( &p_owner->lock );
 553 }
 554
 555 void input_DecoderStopBuffering( decoder_t *p_dec )
 556 {
 557     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 558
 559     vlc_mutex_lock( &p_owner->lock );
 560
 561     p_owner->b_buffering = false;
 562
 563     vlc_cond_signal( &p_owner->wait_request );
 564
 565     vlc_mutex_unlock( &p_owner->lock );
 566 }
 567
 568 void input_DecoderWaitBuffering( decoder_t *p_dec )
 569 {
 570     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 571
 572     vlc_mutex_lock( &p_owner->lock );
 573
 574     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
 575     {
 576         block_FifoWake( p_owner->p_fifo );
 577         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 578     }
 579
 580     vlc_mutex_unlock( &p_owner->lock );
 581 }
 582
 583 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 584 {
 585     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 586
 587     *pi_duration = 0;
 588
 589     vlc_mutex_lock( &p_owner->lock );
 590     if( p_dec->fmt_out.i_cat == VIDEO_ES )
 591     {
 592         if( p_owner->b_paused && p_owner->p_vout )
 593         {
 594             vout_NextPicture( p_owner->p_vout, pi_duration );
 595             p_owner->pause.i_ignore++;
 596             vlc_cond_signal( &p_owner->wait_request );
 597         }
 598     }
 599     else
 600     {
 601         /* TODO subtitle should not be flushed */
 602         DecoderFlush( p_dec );
 603     }
 604     vlc_mutex_unlock( &p_owner->lock );
 605 }
 606
 607 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
 608 {
 609     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 610     bool b_changed;
 611
 612     vlc_mutex_lock( &p_owner->lock );
 613     b_changed = p_owner->b_fmt_description;
 614     if( b_changed )
 615     {
 616         if( p_fmt )
 617             es_format_Copy( p_fmt, &p_owner->fmt_description );
 618
 619         if( pp_meta )
 620         {
 621             *pp_meta = NULL;
 622             if( p_owner->p_description )
 623             {
 624                 *pp_meta = vlc_meta_New();
 625                 if( *pp_meta )
 626                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
 627             }
 628         }
 629         p_owner->b_fmt_description = false;
 630     }
 631     vlc_mutex_unlock( &p_owner->lock );
 632     return b_changed;
 633 }
 634
 635 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
 636 {
 637     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 638
 639     return block_FifoSize( p_owner->p_fifo );
 640 }
 641
 642 void input_DecoderGetObjects( decoder_t *p_dec,
 643                               vout_thread_t **pp_vout, aout_instance_t **pp_aout )
 644 {
 645     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 646
 647     vlc_mutex_lock( &p_owner->lock );
 648     if( pp_vout )
 649         *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
 650     if( pp_aout )
 651         *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
 652     vlc_mutex_unlock( &p_owner->lock );
 653 }
 654
 655 /*****************************************************************************
 656  * Internal functions
 657  *****************************************************************************/
 658 static int DecoderGetInputAttachments( decoder_t *p_dec,
 659                                        input_attachment_t ***ppp_attachment,
 660                                        int *pi_attachment )
 661 {
 662     input_thread_t *p_input = p_dec->p_owner->p_input;
 663
 664     if( unlikely(p_input == NULL) )
 665         return VLC_ENOOBJ;
 666     return input_Control( p_input, INPUT_GET_ATTACHMENTS,
 667                           ppp_attachment, pi_attachment );
 668 }
 669 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 670 {
 671     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 672
 673     vlc_mutex_lock( &p_owner->lock );
 674     if( p_owner->b_buffering || p_owner->b_paused )
 675         i_ts = VLC_TS_INVALID;
 676     vlc_mutex_unlock( &p_owner->lock );
 677
 678     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
 679         return i_ts;
 680
 681     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 682         return VLC_TS_INVALID;
 683
 684     return i_ts;
 685 }
 686 static int DecoderGetDisplayRate( decoder_t *p_dec )
 687 {
 688     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 689
 690     if( !p_owner->p_clock )
 691         return INPUT_RATE_DEFAULT;
 692     return input_clock_GetRate( p_owner->p_clock );
 693 }
 694
 695 /* */
 696 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 697 {
 698     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
 699              "VLC probably does not support this sound or video format.",
 700              (char*)&codec );
 701     dialog_Fatal( p_dec, _("No suitable decoder module"),
 702                  _("VLC does not support the audio or video format \"%4.4s\". "
 703                   "Unfortunately there is no way for you to fix this."),
 704                   (char*)&codec );
 705 }
 706
 707
 708 /**
 709  * Create a decoder object
 710  *
 711  * \param p_input the input thread
 712  * \param p_es the es descriptor
 713  * \param b_packetizer instead of a decoder
 714  * \return the decoder object
 715  */
 716 static decoder_t * CreateDecoder( input_thread_t *p_input,
 717                                   es_format_t *fmt, bool b_packetizer,
 718                                   sout_instance_t *p_sout )
 719 {
 720     decoder_t *p_dec;
 721     decoder_owner_sys_t *p_owner;
 722     es_format_t null_es_format;
 723
 724     p_dec = vlc_custom_create( p_input, sizeof( *p_dec ), VLC_OBJECT_DECODER,
 725                                "decoder" );
 726     if( p_dec == NULL )
 727         return NULL;
 728
 729     p_dec->pf_decode_audio = NULL;
 730     p_dec->pf_decode_video = NULL;
 731     p_dec->pf_decode_sub = NULL;
 732     p_dec->pf_get_cc = NULL;
 733     p_dec->pf_packetize = NULL;
 734
 735     /* Initialize the decoder */
 736     p_dec->p_module = NULL;
 737
 738     memset( &null_es_format, 0, sizeof(es_format_t) );
 739     es_format_Copy( &p_dec->fmt_in, fmt );
 740     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 741
 742     p_dec->p_description = NULL;
 743
 744     /* Allocate our private structure for the decoder */
 745     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 746     if( unlikely(p_owner == NULL) )
 747     {
 748         vlc_object_release( p_dec );
 749         return NULL;
 750     }
 751     p_owner->i_preroll_end = VLC_TS_INVALID;
 752     p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 753     p_owner->p_input = p_input;
 754     p_owner->p_resource = p_input->p->p_resource;
 755     p_owner->p_aout = NULL;
 756     p_owner->p_aout_input = NULL;
 757     p_owner->p_vout = NULL;
 758     p_owner->p_spu_vout = NULL;
 759     p_owner->i_spu_channel = 0;
 760     p_owner->i_spu_order = 0;
 761     p_owner->p_sout = p_sout;
 762     p_owner->p_sout_input = NULL;
 763     p_owner->p_packetizer = NULL;
 764     p_owner->b_packetizer = b_packetizer;
 765
 766     /* decoder fifo */
 767     p_owner->p_fifo = block_FifoNew();
 768     if( unlikely(p_owner->p_fifo == NULL) )
 769     {
 770         free( p_owner );
 771         vlc_object_release( p_dec );
 772         return NULL;
 773     }
 774
 775     /* Set buffers allocation callbacks for the decoders */
 776     p_dec->pf_aout_buffer_new = aout_new_buffer;
 777     p_dec->pf_aout_buffer_del = aout_del_buffer;
 778     p_dec->pf_vout_buffer_new = vout_new_buffer;
 779     p_dec->pf_vout_buffer_del = vout_del_buffer;
 780     p_dec->pf_picture_link    = vout_link_picture;
 781     p_dec->pf_picture_unlink  = vout_unlink_picture;
 782     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 783     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 784     /* */
 785     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 786     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 787     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 788
 789     vlc_object_attach( p_dec, p_input );
 790
 791     /* Find a suitable decoder/packetizer module */
 792     if( !b_packetizer )
 793         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 794     else
 795         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 796
 797     /* Check if decoder requires already packetized data */
 798     if( !b_packetizer &&
 799         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 800     {
 801         p_owner->p_packetizer =
 802             vlc_custom_create( p_input, sizeof( decoder_t ),
 803                                VLC_OBJECT_DECODER, "packetizer" );
 804         if( p_owner->p_packetizer )
 805         {
 806             es_format_Copy( &p_owner->p_packetizer->fmt_in,
 807                             &p_dec->fmt_in );
 808
 809             es_format_Copy( &p_owner->p_packetizer->fmt_out,
 810                             &null_es_format );
 811
 812             vlc_object_attach( p_owner->p_packetizer, p_input );
 813
 814             p_owner->p_packetizer->p_module =
 815                 module_need( p_owner->p_packetizer,
 816                              "packetizer", "$packetizer", false );
 817
 818             if( !p_owner->p_packetizer->p_module )
 819             {
 820                 es_format_Clean( &p_owner->p_packetizer->fmt_in );
 821                 vlc_object_release( p_owner->p_packetizer );
 822             }
 823         }
 824     }
 825
 826     /* Copy ourself the input replay gain */
 827     if( fmt->i_cat == AUDIO_ES )
 828     {
 829         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 830         {
 831             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 832             {
 833                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 834                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 835             }
 836             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 837             {
 838                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 839                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 840             }
 841         }
 842     }
 843
 844     /* */
 845     vlc_mutex_init( &p_owner->lock );
 846     vlc_cond_init( &p_owner->wait_request );
 847     vlc_cond_init( &p_owner->wait_acknowledge );
 848
 849     p_owner->b_fmt_description = false;
 850     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 851     p_owner->p_description = NULL;
 852
 853     p_owner->b_paused = false;
 854     p_owner->pause.i_date = VLC_TS_INVALID;
 855     p_owner->pause.i_ignore = 0;
 856
 857     p_owner->b_buffering = false;
 858     p_owner->buffer.b_first = true;
 859     p_owner->buffer.b_full = false;
 860     p_owner->buffer.i_count = 0;
 861     p_owner->buffer.p_picture = NULL;
 862     p_owner->buffer.p_subpic = NULL;
 863     p_owner->buffer.p_audio = NULL;
 864     p_owner->buffer.p_block = NULL;
 865
 866     p_owner->b_flushing = false;
 867
 868     /* */
 869     p_owner->cc.b_supported = false;
 870     if( !b_packetizer )
 871     {
 872         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 873             p_owner->cc.b_supported = true;
 874         if( p_dec->pf_get_cc )
 875             p_owner->cc.b_supported = true;
 876     }
 877
 878     for( unsigned i = 0; i < 4; i++ )
 879     {
 880         p_owner->cc.pb_present[i] = false;
 881         p_owner->cc.pp_decoder[i] = NULL;
 882     }
 883     p_owner->i_ts_delay = 0;
 884     return p_dec;
 885 }
 886
 887 /**
 888  * The decoding main loop
 889  *
 890  * \param p_dec the decoder
 891  */
 892 static void *DecoderThread( vlc_object_t *p_this )
 893 {
 894     decoder_t *p_dec = (decoder_t *)p_this;
 895     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 896
 897     /* The decoder's main loop */
 898     for( ;; )
 899     {
 900         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 901
 902         /* Make sure there is no cancellation point other than this one^^.
 903          * If you need one, be sure to push cleanup of p_block. */
 904         DecoderSignalBuffering( p_dec, p_block == NULL );
 905
 906         if( p_block )
 907         {
 908             int canc = vlc_savecancel();
 909
 910             if( p_dec->b_error )
 911                 DecoderError( p_dec, p_block );
 912             else
 913                 DecoderProcess( p_dec, p_block );
 914
 915             vlc_restorecancel( canc );
 916         }
 917     }
 918     return NULL;
 919 }
 920
 921 static block_t *DecoderBlockFlushNew()
 922 {
 923     block_t *p_null = block_Alloc( 128 );
 924     if( !p_null )
 925         return NULL;
 926
 927     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 928                        BLOCK_FLAG_CORRUPTED |
 929                        BLOCK_FLAG_CORE_FLUSH;
 930     memset( p_null->p_buffer, 0, p_null->i_buffer );
 931
 932     return p_null;
 933 }
 934
 935 static void DecoderFlush( decoder_t *p_dec )
 936 {
 937     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 938
 939     vlc_assert_locked( &p_owner->lock );
 940
 941     /* Empty the fifo */
 942     block_FifoEmpty( p_owner->p_fifo );
 943
 944     /* Monitor for flush end */
 945     p_owner->b_flushing = true;
 946     vlc_cond_signal( &p_owner->wait_request );
 947
 948     /* Send a special block */
 949     block_t *p_null = DecoderBlockFlushNew();
 950     if( !p_null )
 951         return;
 952     input_DecoderDecode( p_dec, p_null, false );
 953
 954     /* */
 955     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 956         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 957 }
 958
 959 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 960 {
 961     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 962
 963     vlc_mutex_lock( &p_owner->lock );
 964
 965     if( p_owner->b_buffering )
 966     {
 967         if( b_full )
 968             p_owner->buffer.b_full = true;
 969         vlc_cond_signal( &p_owner->wait_acknowledge );
 970     }
 971
 972     vlc_mutex_unlock( &p_owner->lock );
 973 }
 974
 975 static bool DecoderIsFlushing( decoder_t *p_dec )
 976 {
 977     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 978     bool b_flushing;
 979
 980     vlc_mutex_lock( &p_owner->lock );
 981
 982     b_flushing = p_owner->b_flushing;
 983
 984     vlc_mutex_unlock( &p_owner->lock );
 985
 986     return b_flushing;
 987 }
 988
 989 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
 990 {
 991     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 992
 993     vlc_assert_locked( &p_owner->lock );
 994
 995     while( !p_owner->b_flushing )
 996     {
 997         if( p_owner->b_paused )
 998         {
 999             if( p_owner->b_buffering && !p_owner->buffer.b_full )
1000                 break;
1001             if( p_owner->pause.i_ignore > 0 )
1002             {
1003                 p_owner->pause.i_ignore--;
1004                 break;
1005             }
1006         }
1007         else
1008         {
1009             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
1010                 break;
1011         }
1012         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1013     }
1014
1015     if( pb_reject )
1016         *pb_reject = p_owner->b_flushing;
1017 }
1018
1019 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1020 {
1021     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1022
1023     vlc_assert_locked( &p_owner->lock );
1024
1025     /* XXX only audio and video output have to be paused.
1026      * - for sout it is useless
1027      * - for subs, it is done by the vout
1028      */
1029     if( p_dec->fmt_out.i_cat == AUDIO_ES )
1030     {
1031         if( p_owner->p_aout && p_owner->p_aout_input )
1032             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1033                                  b_paused, i_date );
1034     }
1035     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1036     {
1037         if( p_owner->p_vout )
1038             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1039     }
1040 }
1041 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1042 {
1043     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1044         *pi_preroll = INT64_MAX;
1045     else if( p->i_dts > VLC_TS_INVALID )
1046         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1047     else if( p->i_pts > VLC_TS_INVALID )
1048         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1049 }
1050
1051 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1052 {
1053     mtime_t current_date = mdate();
1054
1055     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1056     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1057     {
1058         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1059          * for teletext streams. */
1060         return current_date + 400000;
1061     }
1062     return i_ts;
1063 }
1064
1065 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1066                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1067 {
1068     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1069     input_clock_t   *p_clock = p_owner->p_clock;
1070
1071     vlc_assert_locked( &p_owner->lock );
1072
1073     const mtime_t i_es_delay = p_owner->i_ts_delay;
1074
1075     if( p_clock )
1076     {
1077         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1078         int i_rate;
1079
1080         if( *pi_ts0 > VLC_TS_INVALID )
1081         {
1082             *pi_ts0 += i_es_delay;
1083             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1084                 *pi_ts1 += i_es_delay;
1085             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1086                 *pi_ts0 = VLC_TS_INVALID;
1087         }
1088         else
1089         {
1090             i_rate = input_clock_GetRate( p_clock );
1091         }
1092
1093         /* Do not create ephemere data because of rounding errors */
1094         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1095             *pi_ts1 += 1;
1096
1097         if( pi_duration )
1098             *pi_duration = ( *pi_duration * i_rate +
1099                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1100
1101         if( pi_rate )
1102             *pi_rate = i_rate;
1103
1104         if( b_telx )
1105         {
1106             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1107             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1108                 *pi_ts1 = *pi_ts0;
1109         }
1110     }
1111 }
1112
1113 /**
1114  * If *pb_reject, it does nothing, otherwise it waits for the given
1115  * deadline or a flush request (in which case it set *pi_reject to true.
1116  */
1117 static void DecoderWaitDate( decoder_t *p_dec,
1118                              bool *pb_reject, mtime_t i_deadline )
1119 {
1120     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1121
1122     if( *pb_reject || i_deadline < 0 )
1123         return;
1124
1125     for( ;; )
1126     {
1127         vlc_mutex_lock( &p_owner->lock );
1128         if( p_owner->b_flushing || p_dec->b_die )
1129         {
1130             *pb_reject = true;
1131             vlc_mutex_unlock( &p_owner->lock );
1132             break;
1133         }
1134         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1135                                         i_deadline );
1136         vlc_mutex_unlock( &p_owner->lock );
1137         if( i_ret )
1138             break;
1139     }
1140 }
1141
1142 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1143                               int *pi_played_sum, int *pi_lost_sum )
1144 {
1145     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1146     aout_instance_t *p_aout = p_owner->p_aout;
1147     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1148
1149     /* */
1150     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1151     {
1152         msg_Warn( p_dec, "non-dated audio buffer received" );
1153         *pi_lost_sum += 1;
1154         aout_BufferFree( p_audio );
1155         return;
1156     }
1157
1158     /* */
1159     vlc_mutex_lock( &p_owner->lock );
1160
1161     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1162     {
1163         p_audio->p_next = NULL;
1164
1165         *p_owner->buffer.pp_audio_next = p_audio;
1166         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1167
1168         p_owner->buffer.i_count++;
1169         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1170             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1171         {
1172             p_owner->buffer.b_full = true;
1173             vlc_cond_signal( &p_owner->wait_acknowledge );
1174         }
1175     }
1176
1177     for( ;; )
1178     {
1179         bool b_has_more = false;
1180         bool b_reject;
1181         DecoderWaitUnblock( p_dec, &b_reject );
1182
1183         if( p_owner->b_buffering )
1184         {
1185             vlc_mutex_unlock( &p_owner->lock );
1186             return;
1187         }
1188
1189         /* */
1190         if( p_owner->buffer.p_audio )
1191         {
1192             p_audio = p_owner->buffer.p_audio;
1193
1194             p_owner->buffer.p_audio = p_audio->p_next;
1195             p_owner->buffer.i_count--;
1196
1197             b_has_more = p_owner->buffer.p_audio != NULL;
1198             if( !b_has_more )
1199                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1200         }
1201
1202         /* */
1203         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1204         int i_rate = INPUT_RATE_DEFAULT;
1205
1206         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1207                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1208
1209         vlc_mutex_unlock( &p_owner->lock );
1210
1211         if( !p_aout || !p_aout_input ||
1212             p_audio->i_pts <= VLC_TS_INVALID ||
1213             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1214             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1215             b_reject = true;
1216
1217         DecoderWaitDate( p_dec, &b_reject,
1218                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1219
1220         if( !b_reject )
1221         {
1222             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1223                 *pi_played_sum += 1;
1224             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1225         }
1226         else
1227         {
1228             if( b_dated )
1229                 msg_Warn( p_dec, "received buffer in the future" );
1230             else
1231                 msg_Warn( p_dec, "non-dated audio buffer received" );
1232
1233             *pi_lost_sum += 1;
1234             aout_BufferFree( p_audio );
1235         }
1236
1237         if( !b_has_more )
1238             break;
1239
1240         vlc_mutex_lock( &p_owner->lock );
1241         if( !p_owner->buffer.p_audio )
1242         {
1243             vlc_mutex_unlock( &p_owner->lock );
1244             break;
1245         }
1246     }
1247 }
1248
1249 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1250 {
1251     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1252     input_thread_t  *p_input = p_owner->p_input;
1253     aout_buffer_t   *p_aout_buf;
1254     int i_decoded = 0;
1255     int i_lost = 0;
1256     int i_played = 0;
1257
1258     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1259     {
1260         aout_instance_t *p_aout = p_owner->p_aout;
1261         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1262
1263         if( p_dec->b_die )
1264         {
1265             /* It prevent freezing VLC in case of broken decoder */
1266             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1267             if( p_block )
1268                 block_Release( p_block );
1269             break;
1270         }
1271         i_decoded++;
1272
1273         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1274             p_aout_buf->i_pts < p_owner->i_preroll_end )
1275         {
1276             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1277             continue;
1278         }
1279
1280         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1281         {
1282             msg_Dbg( p_dec, "End of audio preroll" );
1283             if( p_owner->p_aout && p_owner->p_aout_input )
1284                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1285             /* */
1286             p_owner->i_preroll_end = VLC_TS_INVALID;
1287         }
1288
1289         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1290     }
1291
1292     /* Update ugly stat */
1293     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1294     {
1295         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1296
1297         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1298                              i_lost, NULL );
1299         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1300                              i_played, NULL );
1301         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1302                              i_decoded, NULL );
1303
1304         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1305     }
1306 }
1307 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1308 {
1309     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1310     block_t *p_cc;
1311     bool pb_present[4];
1312     bool b_processed = false;
1313     int i;
1314     int i_cc_decoder;
1315
1316     assert( p_dec_cc->pf_get_cc != NULL );
1317
1318     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1319     if( !p_owner->cc.b_supported )
1320         return;
1321
1322     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1323     if( !p_cc )
1324         return;
1325
1326     vlc_mutex_lock( &p_owner->lock );
1327     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1328     {
1329         p_owner->cc.pb_present[i] |= pb_present[i];
1330         if( p_owner->cc.pp_decoder[i] )
1331             i_cc_decoder++;
1332     }
1333
1334     for( i = 0; i < 4; i++ )
1335     {
1336         if( !p_owner->cc.pp_decoder[i] )
1337             continue;
1338
1339         if( i_cc_decoder > 1 )
1340             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1341         else
1342             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1343         i_cc_decoder--;
1344         b_processed = true;
1345     }
1346     vlc_mutex_unlock( &p_owner->lock );
1347
1348     if( !b_processed )
1349         block_Release( p_cc );
1350 }
1351
1352 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1353                               int *pi_played_sum, int *pi_lost_sum )
1354 {
1355     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1356     vout_thread_t  *p_vout = p_owner->p_vout;
1357     bool b_first_buffered;
1358
1359     if( p_picture->date <= VLC_TS_INVALID )
1360     {
1361         msg_Warn( p_dec, "non-dated video buffer received" );
1362         *pi_lost_sum += 1;
1363         vout_ReleasePicture( p_vout, p_picture );
1364         return;
1365     }
1366
1367     /* */
1368     vlc_mutex_lock( &p_owner->lock );
1369
1370     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1371     {
1372         p_picture->p_next = NULL;
1373
1374         *p_owner->buffer.pp_picture_next = p_picture;
1375         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1376
1377         p_owner->buffer.i_count++;
1378         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1379             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1380         {
1381             p_owner->buffer.b_full = true;
1382             vlc_cond_signal( &p_owner->wait_acknowledge );
1383         }
1384     }
1385     b_first_buffered = p_owner->buffer.p_picture != NULL;
1386
1387     for( ;; b_first_buffered = false )
1388     {
1389         bool b_has_more = false;
1390
1391         bool b_reject;
1392
1393         DecoderWaitUnblock( p_dec, &b_reject );
1394
1395         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1396         {
1397             vlc_mutex_unlock( &p_owner->lock );
1398             return;
1399         }
1400         bool b_buffering_first = p_owner->b_buffering;
1401
1402         /* */
1403         if( p_owner->buffer.p_picture )
1404         {
1405             p_picture = p_owner->buffer.p_picture;
1406
1407             p_owner->buffer.p_picture = p_picture->p_next;
1408             p_owner->buffer.i_count--;
1409
1410             b_has_more = p_owner->buffer.p_picture != NULL;
1411             if( !b_has_more )
1412                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1413         }
1414
1415         /* */
1416         if( b_buffering_first )
1417         {
1418             assert( p_owner->buffer.b_first );
1419             assert( !p_owner->buffer.i_count );
1420             msg_Dbg( p_dec, "Received first picture" );
1421             p_owner->buffer.b_first = false;
1422             p_picture->b_force = true;
1423         }
1424
1425         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1426         int i_rate = INPUT_RATE_DEFAULT;
1427         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1428                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1429
1430         vlc_mutex_unlock( &p_owner->lock );
1431
1432         /* */
1433         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1434             b_reject = true;
1435
1436         if( !b_reject )
1437         {
1438             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1439             {
1440                 /* Be sure to not display old picture after our own */
1441                 vout_Flush( p_vout, p_picture->date );
1442                 p_owner->i_last_rate = i_rate;
1443             }
1444             vout_PutPicture( p_vout, p_picture );
1445         }
1446         else
1447         {
1448             if( b_dated )
1449                 msg_Warn( p_dec, "early picture skipped" );
1450             else
1451                 msg_Warn( p_dec, "non-dated video buffer received" );
1452
1453             *pi_lost_sum += 1;
1454             vout_ReleasePicture( p_vout, p_picture );
1455         }
1456         int i_tmp_display;
1457         int i_tmp_lost;
1458         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1459
1460         *pi_played_sum += i_tmp_display;
1461         *pi_lost_sum += i_tmp_lost;
1462
1463         if( !b_has_more || b_buffering_first )
1464             break;
1465
1466         vlc_mutex_lock( &p_owner->lock );
1467         if( !p_owner->buffer.p_picture )
1468         {
1469             vlc_mutex_unlock( &p_owner->lock );
1470             break;
1471         }
1472     }
1473 }
1474
1475 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1476 {
1477     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1478     input_thread_t *p_input = p_owner->p_input;
1479     picture_t      *p_pic;
1480     int i_lost = 0;
1481     int i_decoded = 0;
1482     int i_displayed = 0;
1483
1484     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1485     {
1486         vout_thread_t  *p_vout = p_owner->p_vout;
1487         if( p_dec->b_die )
1488         {
1489             /* It prevent freezing VLC in case of broken decoder */
1490             vout_ReleasePicture( p_vout, p_pic );
1491             if( p_block )
1492                 block_Release( p_block );
1493             break;
1494         }
1495
1496         i_decoded++;
1497
1498         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1499         {
1500             vout_ReleasePicture( p_vout, p_pic );
1501             continue;
1502         }
1503
1504         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1505         {
1506             msg_Dbg( p_dec, "End of video preroll" );
1507             if( p_vout )
1508                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1509             /* */
1510             p_owner->i_preroll_end = VLC_TS_INVALID;
1511         }
1512
1513         if( p_dec->pf_get_cc &&
1514             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1515             DecoderGetCc( p_dec, p_dec );
1516
1517         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1518     }
1519     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1520     {
1521         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1522
1523         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1524                              i_decoded, NULL );
1525         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1526                              i_lost , NULL);
1527
1528         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1529                              i_displayed, NULL);
1530
1531         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1532     }
1533 }
1534
1535 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1536                             bool b_telx )
1537 {
1538     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1539     vout_thread_t *p_vout = p_owner->p_spu_vout;
1540
1541     /* */
1542     if( p_subpic->i_start <= VLC_TS_INVALID && !b_telx )
1543     {
1544         msg_Warn( p_dec, "non-dated spu buffer received" );
1545         subpicture_Delete( p_subpic );
1546         return;
1547     }
1548
1549     /* */
1550     vlc_mutex_lock( &p_owner->lock );
1551
1552     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1553     {
1554         p_subpic->p_next = NULL;
1555
1556         *p_owner->buffer.pp_subpic_next = p_subpic;
1557         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1558
1559         p_owner->buffer.i_count++;
1560         /* XXX it is important to be full after the first one */
1561         if( p_owner->buffer.i_count > 0 )
1562         {
1563             p_owner->buffer.b_full = true;
1564             vlc_cond_signal( &p_owner->wait_acknowledge );
1565         }
1566     }
1567
1568     for( ;; )
1569     {
1570         bool b_has_more = false;
1571         bool b_reject;
1572         DecoderWaitUnblock( p_dec, &b_reject );
1573
1574         if( p_owner->b_buffering )
1575         {
1576             vlc_mutex_unlock( &p_owner->lock );
1577             return;
1578         }
1579
1580         /* */
1581         if( p_owner->buffer.p_subpic )
1582         {
1583             p_subpic = p_owner->buffer.p_subpic;
1584
1585             p_owner->buffer.p_subpic = p_subpic->p_next;
1586             p_owner->buffer.i_count--;
1587
1588             b_has_more = p_owner->buffer.p_subpic != NULL;
1589             if( !b_has_more )
1590                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1591         }
1592
1593         /* */
1594         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1595                       NULL, INT64_MAX, b_telx );
1596
1597         vlc_mutex_unlock( &p_owner->lock );
1598
1599         if( p_subpic->i_start <= VLC_TS_INVALID )
1600             b_reject = true;
1601
1602         DecoderWaitDate( p_dec, &b_reject,
1603                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1604
1605         if( !b_reject )
1606             vout_PutSubpicture( p_vout, p_subpic );
1607         else
1608             subpicture_Delete( p_subpic );
1609
1610         if( !b_has_more )
1611             break;
1612         vlc_mutex_lock( &p_owner->lock );
1613         if( !p_owner->buffer.p_subpic )
1614         {
1615             vlc_mutex_unlock( &p_owner->lock );
1616             break;
1617         }
1618     }
1619 }
1620
1621 #ifdef ENABLE_SOUT
1622 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1623                              bool b_telx )
1624 {
1625     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1626
1627     assert( p_owner->p_clock );
1628     assert( !p_sout_block->p_next );
1629
1630     vlc_mutex_lock( &p_owner->lock );
1631
1632     if( p_owner->b_buffering || p_owner->buffer.p_block )
1633     {
1634         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1635
1636         p_owner->buffer.i_count++;
1637         /* XXX it is important to be full after the first one */
1638         if( p_owner->buffer.i_count > 0 )
1639         {
1640             p_owner->buffer.b_full = true;
1641             vlc_cond_signal( &p_owner->wait_acknowledge );
1642         }
1643     }
1644
1645     for( ;; )
1646     {
1647         bool b_has_more = false;
1648         bool b_reject;
1649         DecoderWaitUnblock( p_dec, &b_reject );
1650
1651         if( p_owner->b_buffering )
1652         {
1653             vlc_mutex_unlock( &p_owner->lock );
1654             return;
1655         }
1656
1657         /* */
1658         if( p_owner->buffer.p_block )
1659         {
1660             p_sout_block = p_owner->buffer.p_block;
1661
1662             p_owner->buffer.p_block = p_sout_block->p_next;
1663             p_owner->buffer.i_count--;
1664
1665             b_has_more = p_owner->buffer.p_block != NULL;
1666             if( !b_has_more )
1667                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1668         }
1669         p_sout_block->p_next = NULL;
1670
1671         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1672                       &p_sout_block->i_length,
1673                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1674
1675         vlc_mutex_unlock( &p_owner->lock );
1676
1677         if( !b_reject )
1678             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1679         else
1680             block_Release( p_sout_block );
1681
1682         if( !b_has_more )
1683             break;
1684         vlc_mutex_lock( &p_owner->lock );
1685         if( !p_owner->buffer.p_block )
1686         {
1687             vlc_mutex_unlock( &p_owner->lock );
1688             break;
1689         }
1690     }
1691 }
1692 #endif
1693
1694 /* */
1695 static void DecoderFlushBuffering( decoder_t *p_dec )
1696 {
1697     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1698
1699     vlc_assert_locked( &p_owner->lock );
1700
1701     while( p_owner->buffer.p_picture )
1702     {
1703         picture_t *p_picture = p_owner->buffer.p_picture;
1704
1705         p_owner->buffer.p_picture = p_picture->p_next;
1706         p_owner->buffer.i_count--;
1707
1708         if( p_owner->p_vout )
1709         {
1710             vout_ReleasePicture( p_owner->p_vout, p_picture );
1711         }
1712
1713         if( !p_owner->buffer.p_picture )
1714             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1715     }
1716     while( p_owner->buffer.p_audio )
1717     {
1718         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1719
1720         p_owner->buffer.p_audio = p_audio->p_next;
1721         p_owner->buffer.i_count--;
1722
1723         aout_BufferFree( p_audio );
1724
1725         if( !p_owner->buffer.p_audio )
1726             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1727     }
1728     while( p_owner->buffer.p_subpic )
1729     {
1730         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1731
1732         p_owner->buffer.p_subpic = p_subpic->p_next;
1733         p_owner->buffer.i_count--;
1734
1735         subpicture_Delete( p_subpic );
1736
1737         if( !p_owner->buffer.p_subpic )
1738             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1739     }
1740     if( p_owner->buffer.p_block )
1741     {
1742         block_ChainRelease( p_owner->buffer.p_block );
1743
1744         p_owner->buffer.i_count = 0;
1745         p_owner->buffer.p_block = NULL;
1746         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1747     }
1748 }
1749
1750 #ifdef ENABLE_SOUT
1751 /* This function process a block for sout
1752  */
1753 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1754 {
1755     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1756     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1757     block_t *p_sout_block;
1758
1759     while( ( p_sout_block =
1760                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1761     {
1762         if( !p_owner->p_sout_input )
1763         {
1764             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1765
1766             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1767             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1768             if( p_dec->fmt_in.psz_language )
1769             {
1770                 free( p_owner->sout.psz_language );
1771                 p_owner->sout.psz_language =
1772                     strdup( p_dec->fmt_in.psz_language );
1773             }
1774
1775             p_owner->p_sout_input =
1776                 sout_InputNew( p_owner->p_sout,
1777                                &p_owner->sout );
1778
1779             if( p_owner->p_sout_input == NULL )
1780             {
1781                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1782                          (char *)&p_owner->sout.i_codec );
1783                 p_dec->b_error = true;
1784
1785                 while( p_sout_block )
1786                 {
1787                     block_t *p_next = p_sout_block->p_next;
1788                     block_Release( p_sout_block );
1789                     p_sout_block = p_next;
1790                 }
1791                 break;
1792             }
1793         }
1794
1795         while( p_sout_block )
1796         {
1797             block_t *p_next = p_sout_block->p_next;
1798
1799             p_sout_block->p_next = NULL;
1800
1801             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1802
1803             p_sout_block = p_next;
1804         }
1805     }
1806 }
1807 #endif
1808
1809 /* This function process a video block
1810  */
1811 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1812 {
1813     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1814
1815     if( p_owner->p_packetizer )
1816     {
1817         block_t *p_packetized_block;
1818         decoder_t *p_packetizer = p_owner->p_packetizer;
1819
1820         while( (p_packetized_block =
1821                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1822         {
1823             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1824             {
1825                 es_format_Clean( &p_dec->fmt_in );
1826                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1827             }
1828             if( p_packetizer->pf_get_cc )
1829                 DecoderGetCc( p_dec, p_packetizer );
1830
1831             while( p_packetized_block )
1832             {
1833                 block_t *p_next = p_packetized_block->p_next;
1834                 p_packetized_block->p_next = NULL;
1835
1836                 DecoderDecodeVideo( p_dec, p_packetized_block );
1837
1838                 p_packetized_block = p_next;
1839             }
1840         }
1841         /* The packetizer does not output a block that tell the decoder to flush
1842          * do it ourself */
1843         if( b_flush )
1844         {
1845             block_t *p_null = DecoderBlockFlushNew();
1846             if( p_null )
1847                 DecoderDecodeVideo( p_dec, p_null );
1848         }
1849     }
1850     else if( p_block )
1851     {
1852         DecoderDecodeVideo( p_dec, p_block );
1853     }
1854
1855     if( b_flush && p_owner->p_vout )
1856         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1857 }
1858
1859 /* This function process a audio block
1860  */
1861 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1862 {
1863     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1864
1865     if( p_owner->p_packetizer )
1866     {
1867         block_t *p_packetized_block;
1868         decoder_t *p_packetizer = p_owner->p_packetizer;
1869
1870         while( (p_packetized_block =
1871                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1872         {
1873             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1874             {
1875                 es_format_Clean( &p_dec->fmt_in );
1876                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1877             }
1878
1879             while( p_packetized_block )
1880             {
1881                 block_t *p_next = p_packetized_block->p_next;
1882                 p_packetized_block->p_next = NULL;
1883
1884                 DecoderDecodeAudio( p_dec, p_packetized_block );
1885
1886                 p_packetized_block = p_next;
1887             }
1888         }
1889         /* The packetizer does not output a block that tell the decoder to flush
1890          * do it ourself */
1891         if( b_flush )
1892         {
1893             block_t *p_null = DecoderBlockFlushNew();
1894             if( p_null )
1895                 DecoderDecodeAudio( p_dec, p_null );
1896         }
1897     }
1898     else if( p_block )
1899     {
1900         DecoderDecodeAudio( p_dec, p_block );
1901     }
1902
1903     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1904         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1905 }
1906
1907 /* This function process a subtitle block
1908  */
1909 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1910 {
1911     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1912     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1913
1914     input_thread_t *p_input = p_owner->p_input;
1915     vout_thread_t *p_vout;
1916     subpicture_t *p_spu;
1917
1918     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1919     {
1920         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1921         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1922         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1923
1924         p_vout = input_resource_HoldVout( p_owner->p_resource );
1925         if( p_vout && p_owner->p_spu_vout == p_vout )
1926         {
1927             /* Preroll does not work very well with subtitle */
1928             if( p_spu->i_start > VLC_TS_INVALID &&
1929                 p_spu->i_start < p_owner->i_preroll_end &&
1930                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1931             {
1932                 subpicture_Delete( p_spu );
1933             }
1934             else
1935             {
1936                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1937             }
1938         }
1939         else
1940         {
1941             subpicture_Delete( p_spu );
1942         }
1943         if( p_vout )
1944             vlc_object_release( p_vout );
1945     }
1946
1947     if( b_flush && p_owner->p_spu_vout )
1948     {
1949         p_vout = input_resource_HoldVout( p_owner->p_resource );
1950
1951         if( p_vout && p_owner->p_spu_vout == p_vout )
1952             vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1953
1954         if( p_vout )
1955             vlc_object_release( p_vout );
1956     }
1957 }
1958
1959 /* */
1960 static void DecoderProcessOnFlush( decoder_t *p_dec )
1961 {
1962     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1963
1964     vlc_mutex_lock( &p_owner->lock );
1965     DecoderFlushBuffering( p_dec );
1966
1967     if( p_owner->b_flushing )
1968     {
1969         p_owner->b_flushing = false;
1970         vlc_cond_signal( &p_owner->wait_acknowledge );
1971     }
1972     vlc_mutex_unlock( &p_owner->lock );
1973 }
1974
1975 /**
1976  * Decode a block
1977  *
1978  * \param p_dec the decoder object
1979  * \param p_block the block to decode
1980  * \return VLC_SUCCESS or an error code
1981  */
1982 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1983 {
1984     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1985     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1986
1987     if( p_block && p_block->i_buffer <= 0 )
1988     {
1989         assert( !b_flush_request );
1990         block_Release( p_block );
1991         return;
1992     }
1993
1994 #ifdef ENABLE_SOUT
1995     if( p_owner->b_packetizer )
1996     {
1997         if( p_block )
1998             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1999
2000         DecoderProcessSout( p_dec, p_block );
2001     }
2002     else
2003 #endif
2004     {
2005         bool b_flush = false;
2006
2007         if( p_block )
2008         {
2009             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
2010             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
2011
2012             b_flush = !b_flushing && b_flush_request;
2013
2014             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2015         }
2016
2017         if( p_dec->fmt_out.i_cat == AUDIO_ES )
2018         {
2019             DecoderProcessAudio( p_dec, p_block, b_flush );
2020         }
2021         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
2022         {
2023             DecoderProcessVideo( p_dec, p_block, b_flush );
2024         }
2025         else if( p_dec->fmt_out.i_cat == SPU_ES )
2026         {
2027             DecoderProcessSpu( p_dec, p_block, b_flush );
2028         }
2029         else
2030         {
2031             msg_Err( p_dec, "unknown ES format" );
2032             p_dec->b_error = true;
2033         }
2034     }
2035
2036     /* */
2037     if( b_flush_request )
2038         DecoderProcessOnFlush( p_dec );
2039 }
2040
2041 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2042 {
2043     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2044
2045     /* */
2046     if( p_block )
2047         block_Release( p_block );
2048
2049     if( b_flush_request )
2050         DecoderProcessOnFlush( p_dec );
2051 }
2052
2053
2054 /**
2055  * Destroys a decoder object
2056  *
2057  * \param p_dec the decoder object
2058  * \return nothing
2059  */
2060 static void DeleteDecoder( decoder_t * p_dec )
2061 {
2062     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2063
2064     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2065              (char*)&p_dec->fmt_in.i_codec,
2066              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2067
2068     /* Free all packets still in the decoder fifo. */
2069     block_FifoEmpty( p_owner->p_fifo );
2070     block_FifoRelease( p_owner->p_fifo );
2071
2072     /* */
2073     vlc_mutex_lock( &p_owner->lock );
2074     DecoderFlushBuffering( p_dec );
2075     vlc_mutex_unlock( &p_owner->lock );
2076
2077     /* Cleanup */
2078     if( p_owner->p_aout_input )
2079         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2080     if( p_owner->p_aout )
2081     {
2082         input_resource_RequestAout( p_owner->p_resource, p_owner->p_aout );
2083         input_SendEventAout( p_owner->p_input );
2084         p_owner->p_aout = NULL;
2085     }
2086     if( p_owner->p_vout )
2087     {
2088         /* Hack to make sure all the the pictures are freed by the decoder
2089          * and that the vout is not paused anymore */
2090         vout_Reset( p_owner->p_vout );
2091
2092         /* */
2093         input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
2094                                     0, true );
2095         input_SendEventVout( p_owner->p_input );
2096     }
2097
2098 #ifdef ENABLE_SOUT
2099     if( p_owner->p_sout_input )
2100     {
2101         sout_InputDelete( p_owner->p_sout_input );
2102         es_format_Clean( &p_owner->sout );
2103     }
2104 #endif
2105
2106     if( p_dec->fmt_out.i_cat == SPU_ES )
2107     {
2108         vout_thread_t *p_vout;
2109
2110         p_vout = input_resource_HoldVout( p_owner->p_resource );
2111         if( p_vout )
2112         {
2113             if( p_owner->p_spu_vout == p_vout )
2114                 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2115             vlc_object_release( p_vout );
2116         }
2117     }
2118
2119     es_format_Clean( &p_dec->fmt_in );
2120     es_format_Clean( &p_dec->fmt_out );
2121     if( p_dec->p_description )
2122         vlc_meta_Delete( p_dec->p_description );
2123     es_format_Clean( &p_owner->fmt_description );
2124     if( p_owner->p_description )
2125         vlc_meta_Delete( p_owner->p_description );
2126
2127     if( p_owner->p_packetizer )
2128     {
2129         module_unneed( p_owner->p_packetizer,
2130                        p_owner->p_packetizer->p_module );
2131         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2132         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2133         if( p_owner->p_packetizer->p_description )
2134             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2135         vlc_object_release( p_owner->p_packetizer );
2136     }
2137
2138     vlc_cond_destroy( &p_owner->wait_acknowledge );
2139     vlc_cond_destroy( &p_owner->wait_request );
2140     vlc_mutex_destroy( &p_owner->lock );
2141
2142     vlc_object_release( p_dec );
2143
2144     free( p_owner );
2145 }
2146
2147 /*****************************************************************************
2148  * Buffers allocation callbacks for the decoders
2149  *****************************************************************************/
2150 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2151 {
2152     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2153
2154     vlc_assert_locked( &p_owner->lock );
2155
2156     p_owner->b_fmt_description = true;
2157
2158     /* Copy es_format */
2159     es_format_Clean( &p_owner->fmt_description );
2160     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2161
2162     /* Move p_description */
2163     if( p_owner->p_description && p_dec->p_description )
2164         vlc_meta_Delete( p_owner->p_description );
2165     p_owner->p_description = p_dec->p_description;
2166     p_dec->p_description = NULL;
2167 }
2168 static vout_thread_t *aout_request_vout( void *p_private,
2169                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2170 {
2171     decoder_t *p_dec = p_private;
2172     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2173     input_thread_t *p_input = p_owner->p_input;
2174
2175     p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
2176                                          b_recyle );
2177     input_SendEventVout( p_input );
2178
2179     return p_vout;
2180 }
2181
2182 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2183 {
2184     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2185     aout_buffer_t *p_buffer;
2186
2187     if( p_owner->p_aout_input != NULL &&
2188         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2189           p_dec->fmt_out.audio.i_original_channels !=
2190               p_owner->audio.i_original_channels ||
2191           p_dec->fmt_out.audio.i_bytes_per_frame !=
2192               p_owner->audio.i_bytes_per_frame ) )
2193     {
2194         aout_input_t *p_aout_input = p_owner->p_aout_input;
2195
2196         /* Parameters changed, restart the aout */
2197         vlc_mutex_lock( &p_owner->lock );
2198
2199         DecoderFlushBuffering( p_dec );
2200
2201         p_owner->p_aout_input = NULL;
2202         aout_DecDelete( p_owner->p_aout, p_aout_input );
2203
2204         vlc_mutex_unlock( &p_owner->lock );
2205     }
2206
2207     if( p_owner->p_aout_input == NULL )
2208     {
2209         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2210         audio_sample_format_t format;
2211         aout_input_t *p_aout_input;
2212         aout_instance_t *p_aout;
2213         aout_request_vout_t request_vout;
2214
2215         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2216         p_owner->audio = p_dec->fmt_out.audio;
2217
2218         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2219         if( i_force_dolby &&
2220             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2221                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2222         {
2223             if( i_force_dolby == 1 )
2224             {
2225                 format.i_original_channels = format.i_original_channels |
2226                                              AOUT_CHAN_DOLBYSTEREO;
2227             }
2228             else /* i_force_dolby == 2 */
2229             {
2230                 format.i_original_channels = format.i_original_channels &
2231                                              ~AOUT_CHAN_DOLBYSTEREO;
2232             }
2233         }
2234
2235         request_vout.pf_request_vout = aout_request_vout;
2236         request_vout.p_private = p_dec;
2237
2238         p_aout = p_owner->p_aout;
2239         if( !p_aout )
2240             p_aout = input_resource_RequestAout( p_owner->p_resource, NULL );
2241         p_aout_input = aout_DecNew( p_dec, &p_aout,
2242                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2243
2244         vlc_mutex_lock( &p_owner->lock );
2245
2246         p_owner->p_aout = p_aout;
2247         p_owner->p_aout_input = p_aout_input;
2248         DecoderUpdateFormatLocked( p_dec );
2249
2250         vlc_mutex_unlock( &p_owner->lock );
2251
2252         input_SendEventAout( p_owner->p_input );
2253
2254         if( p_owner->p_aout_input == NULL )
2255         {
2256             msg_Err( p_dec, "failed to create audio output" );
2257             p_dec->b_error = true;
2258             return NULL;
2259         }
2260         p_dec->fmt_out.audio.i_bytes_per_frame =
2261             p_owner->audio.i_bytes_per_frame;
2262     }
2263
2264     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2265
2266     return p_buffer;
2267 }
2268
2269 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2270 {
2271     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2272
2273     aout_DecDeleteBuffer( p_owner->p_aout,
2274                           p_owner->p_aout_input, p_buffer );
2275 }
2276
2277 static picture_t *vout_new_buffer( decoder_t *p_dec )
2278 {
2279     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2280
2281     if( p_owner->p_vout == NULL ||
2282         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2283         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2284         p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2285         p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2286         p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset  ||
2287         p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset  ||
2288         p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2289         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2290         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2291     {
2292         vout_thread_t *p_vout;
2293
2294         if( !p_dec->fmt_out.video.i_width ||
2295             !p_dec->fmt_out.video.i_height )
2296         {
2297             /* Can't create a new vout without display size */
2298             return NULL;
2299         }
2300
2301         video_format_t fmt = p_dec->fmt_out.video;
2302         fmt.i_chroma = p_dec->fmt_out.i_codec;
2303         p_owner->video = fmt;
2304
2305         if( !fmt.i_visible_width || !fmt.i_visible_height )
2306         {
2307             if( p_dec->fmt_in.video.i_visible_width &&
2308                 p_dec->fmt_in.video.i_visible_height )
2309             {
2310                 fmt.i_visible_width  = p_dec->fmt_in.video.i_visible_width;
2311                 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2312             }
2313             else
2314             {
2315                 fmt.i_visible_width  = fmt.i_width;
2316                 fmt.i_visible_height = fmt.i_height;
2317             }
2318         }
2319
2320         if( fmt.i_visible_height == 1088 &&
2321             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2322         {
2323             fmt.i_visible_height = 1080;
2324             if( !(fmt.i_sar_num % 136))
2325             {
2326                 fmt.i_sar_num *= 135;
2327                 fmt.i_sar_den *= 136;
2328             }
2329             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2330         }
2331
2332         if( !fmt.i_sar_num || !fmt.i_sar_den )
2333         {
2334             fmt.i_sar_num = 1;
2335             fmt.i_sar_den = 1;
2336         }
2337
2338         vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2339                      fmt.i_sar_num, fmt.i_sar_den, 50000 );
2340
2341         vlc_mutex_lock( &p_owner->lock );
2342
2343         DecoderFlushBuffering( p_dec );
2344
2345         p_vout = p_owner->p_vout;
2346         p_owner->p_vout = NULL;
2347         vlc_mutex_unlock( &p_owner->lock );
2348
2349         unsigned dpb_size;
2350         switch( p_dec->fmt_in.i_codec )
2351         {
2352         case VLC_CODEC_H264:
2353         case VLC_CODEC_DIRAC: /* FIXME valid ? */
2354             dpb_size = 18;
2355             break;
2356         case VLC_CODEC_VP5:
2357         case VLC_CODEC_VP6:
2358         case VLC_CODEC_VP6F:
2359         case VLC_CODEC_VP8:
2360             dpb_size = 3;
2361             break;
2362         default:
2363             dpb_size = 2;
2364             break;
2365         }
2366         p_vout = input_resource_RequestVout( p_owner->p_resource,
2367                                              p_vout, &fmt,
2368                                              dpb_size + 1 + DECODER_MAX_BUFFERING_COUNT,
2369                                              true );
2370         vlc_mutex_lock( &p_owner->lock );
2371         p_owner->p_vout = p_vout;
2372
2373         DecoderUpdateFormatLocked( p_dec );
2374
2375         vlc_mutex_unlock( &p_owner->lock );
2376
2377         input_SendEventVout( p_owner->p_input );
2378         if( p_vout == NULL )
2379         {
2380             msg_Err( p_dec, "failed to create video output" );
2381             p_dec->b_error = true;
2382             return NULL;
2383         }
2384     }
2385
2386     /* Get a new picture
2387      */
2388     for( ;; )
2389     {
2390         if( p_dec->b_die || p_dec->b_error )
2391             return NULL;
2392
2393         picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2394         if( p_picture )
2395             return p_picture;
2396
2397         if( DecoderIsFlushing( p_dec ) )
2398             return NULL;
2399
2400         /* */
2401         DecoderSignalBuffering( p_dec, true );
2402
2403         /* Check the decoder doesn't leak pictures */
2404         vout_FixLeaks( p_owner->p_vout );
2405
2406         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2407         msleep( VOUT_OUTMEM_SLEEP );
2408     }
2409 }
2410
2411 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2412 {
2413     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2414 }
2415
2416 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2417 {
2418     vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2419 }
2420
2421 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2422 {
2423     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2424 }
2425
2426 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2427                                      const subpicture_updater_t *p_updater )
2428 {
2429     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2430     vout_thread_t *p_vout = NULL;
2431     subpicture_t *p_subpic;
2432     int i_attempts = 30;
2433
2434     while( i_attempts-- )
2435     {
2436         if( p_dec->b_die || p_dec->b_error )
2437             break;
2438
2439         p_vout = input_resource_HoldVout( p_owner->p_resource );
2440         if( p_vout )
2441             break;
2442
2443         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2444     }
2445
2446     if( !p_vout )
2447     {
2448         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2449         return NULL;
2450     }
2451
2452     if( p_owner->p_spu_vout != p_vout )
2453     {
2454         vlc_mutex_lock( &p_owner->lock );
2455
2456         DecoderFlushBuffering( p_dec );
2457
2458         vlc_mutex_unlock( &p_owner->lock );
2459
2460         p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2461         p_owner->i_spu_order = 0;
2462         p_owner->p_spu_vout = p_vout;
2463     }
2464
2465     p_subpic = subpicture_New( p_updater );
2466     if( p_subpic )
2467     {
2468         p_subpic->i_channel = p_owner->i_spu_channel;
2469         p_subpic->i_order = p_owner->i_spu_order++;
2470         p_subpic->b_subtitle = true;
2471     }
2472
2473     vlc_object_release( p_vout );
2474
2475     return p_subpic;
2476 }
2477
2478 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2479 {
2480     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2481     vout_thread_t *p_vout = NULL;
2482
2483     p_vout = input_resource_HoldVout( p_owner->p_resource );
2484     if( !p_vout || p_owner->p_spu_vout != p_vout )
2485     {
2486         if( p_vout )
2487             vlc_object_release( p_vout );
2488         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2489         return;
2490     }
2491
2492     subpicture_Delete( p_subpic );
2493
2494     vlc_object_release( p_vout );
2495 }
2496