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