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 ) > 50000000 /* 50 MB */ )
 373 #else
 374     else if( block_FifoSize( p_owner->p_fifo ) > 400000000 /* 400 MB, 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 /*****************************************************************************
 628  * Internal functions
 629  *****************************************************************************/
 630 static int DecoderGetInputAttachments( decoder_t *p_dec,
 631                                        input_attachment_t ***ppp_attachment,
 632                                        int *pi_attachment )
 633 {
 634     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
 635                           ppp_attachment, pi_attachment );
 636 }
 637 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 638 {
 639     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 640
 641     vlc_mutex_lock( &p_owner->lock );
 642     if( p_owner->b_buffering || p_owner->b_paused )
 643         i_ts = VLC_TS_INVALID;
 644     vlc_mutex_unlock( &p_owner->lock );
 645
 646     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
 647         return i_ts;
 648
 649     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 650         return VLC_TS_INVALID;
 651
 652     return i_ts;
 653 }
 654 static int DecoderGetDisplayRate( decoder_t *p_dec )
 655 {
 656     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 657
 658     if( !p_owner->p_clock )
 659         return INPUT_RATE_DEFAULT;
 660     return input_clock_GetRate( p_owner->p_clock );
 661 }
 662
 663 /* */
 664 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 665 {
 666     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
 667              "VLC probably does not support this sound or video format.",
 668              (char*)&codec );
 669     dialog_Fatal( p_dec, _("No suitable decoder module"),
 670                  _("VLC does not support the audio or video format \"%4.4s\". "
 671                   "Unfortunately there is no way for you to fix this."),
 672                   (char*)&codec );
 673 }
 674
 675
 676 /**
 677  * Create a decoder object
 678  *
 679  * \param p_input the input thread
 680  * \param p_es the es descriptor
 681  * \param b_packetizer instead of a decoder
 682  * \return the decoder object
 683  */
 684 static decoder_t * CreateDecoder( input_thread_t *p_input,
 685                                   es_format_t *fmt, bool b_packetizer,
 686                                   sout_instance_t *p_sout )
 687 {
 688     decoder_t *p_dec;
 689     decoder_owner_sys_t *p_owner;
 690     es_format_t null_es_format;
 691
 692     p_dec = vlc_custom_create( p_input, sizeof( *p_dec ), VLC_OBJECT_DECODER,
 693                                "decoder" );
 694     if( p_dec == NULL )
 695         return NULL;
 696
 697     p_dec->pf_decode_audio = NULL;
 698     p_dec->pf_decode_video = NULL;
 699     p_dec->pf_decode_sub = NULL;
 700     p_dec->pf_get_cc = NULL;
 701     p_dec->pf_packetize = NULL;
 702
 703     /* Initialize the decoder */
 704     p_dec->p_module = NULL;
 705
 706     memset( &null_es_format, 0, sizeof(es_format_t) );
 707     es_format_Copy( &p_dec->fmt_in, fmt );
 708     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 709
 710     p_dec->p_description = NULL;
 711
 712     /* Allocate our private structure for the decoder */
 713     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 714     if( p_dec->p_owner == NULL )
 715     {
 716         vlc_object_release( p_dec );
 717         return NULL;
 718     }
 719     p_dec->p_owner->i_preroll_end = VLC_TS_INVALID;
 720     p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 721     p_dec->p_owner->p_input = p_input;
 722     p_dec->p_owner->p_aout = NULL;
 723     p_dec->p_owner->p_aout_input = NULL;
 724     p_dec->p_owner->p_vout = NULL;
 725     p_dec->p_owner->p_spu_vout = NULL;
 726     p_dec->p_owner->i_spu_channel = 0;
 727     p_dec->p_owner->i_spu_order = 0;
 728     p_dec->p_owner->p_sout = p_sout;
 729     p_dec->p_owner->p_sout_input = NULL;
 730     p_dec->p_owner->p_packetizer = NULL;
 731     p_dec->p_owner->b_packetizer = b_packetizer;
 732
 733     /* decoder fifo */
 734     if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
 735     {
 736         free( p_dec->p_owner );
 737         vlc_object_release( p_dec );
 738         return NULL;
 739     }
 740
 741     /* Set buffers allocation callbacks for the decoders */
 742     p_dec->pf_aout_buffer_new = aout_new_buffer;
 743     p_dec->pf_aout_buffer_del = aout_del_buffer;
 744     p_dec->pf_vout_buffer_new = vout_new_buffer;
 745     p_dec->pf_vout_buffer_del = vout_del_buffer;
 746     p_dec->pf_picture_link    = vout_link_picture;
 747     p_dec->pf_picture_unlink  = vout_unlink_picture;
 748     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 749     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 750     /* */
 751     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 752     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 753     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 754
 755     vlc_object_attach( p_dec, p_input );
 756
 757     /* Find a suitable decoder/packetizer module */
 758     if( !b_packetizer )
 759         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 760     else
 761         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 762
 763     /* Check if decoder requires already packetized data */
 764     if( !b_packetizer &&
 765         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 766     {
 767         p_dec->p_owner->p_packetizer =
 768             vlc_custom_create( p_input, sizeof( decoder_t ),
 769                                VLC_OBJECT_DECODER, "packetizer" );
 770         if( p_dec->p_owner->p_packetizer )
 771         {
 772             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
 773                             &p_dec->fmt_in );
 774
 775             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
 776                             &null_es_format );
 777
 778             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
 779
 780             p_dec->p_owner->p_packetizer->p_module =
 781                 module_need( p_dec->p_owner->p_packetizer,
 782                              "packetizer", "$packetizer", false );
 783
 784             if( !p_dec->p_owner->p_packetizer->p_module )
 785             {
 786                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
 787                 vlc_object_release( p_dec->p_owner->p_packetizer );
 788             }
 789         }
 790     }
 791
 792     /* Copy ourself the input replay gain */
 793     if( fmt->i_cat == AUDIO_ES )
 794     {
 795         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 796         {
 797             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 798             {
 799                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 800                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 801             }
 802             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 803             {
 804                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 805                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 806             }
 807         }
 808     }
 809
 810     /* */
 811     vlc_mutex_init( &p_owner->lock );
 812     vlc_cond_init( &p_owner->wait_request );
 813     vlc_cond_init( &p_owner->wait_acknowledge );
 814
 815     p_owner->b_fmt_description = false;
 816     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 817     p_owner->p_description = NULL;
 818
 819     p_owner->b_paused = false;
 820     p_owner->pause.i_date = VLC_TS_INVALID;
 821     p_owner->pause.i_ignore = 0;
 822
 823     p_owner->b_buffering = false;
 824     p_owner->buffer.b_first = true;
 825     p_owner->buffer.b_full = false;
 826     p_owner->buffer.i_count = 0;
 827     p_owner->buffer.p_picture = NULL;
 828     p_owner->buffer.p_subpic = NULL;
 829     p_owner->buffer.p_audio = NULL;
 830     p_owner->buffer.p_block = NULL;
 831
 832     p_owner->b_flushing = false;
 833
 834     /* */
 835     p_owner->cc.b_supported = false;
 836     if( !b_packetizer )
 837     {
 838         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 839             p_owner->cc.b_supported = true;
 840         if( p_dec->pf_get_cc )
 841             p_owner->cc.b_supported = true;
 842     }
 843
 844     for( unsigned i = 0; i < 4; i++ )
 845     {
 846         p_owner->cc.pb_present[i] = false;
 847         p_owner->cc.pp_decoder[i] = NULL;
 848     }
 849     p_owner->i_ts_delay = 0;
 850     return p_dec;
 851 }
 852
 853 /**
 854  * The decoding main loop
 855  *
 856  * \param p_dec the decoder
 857  */
 858 static void *DecoderThread( vlc_object_t *p_this )
 859 {
 860     decoder_t *p_dec = (decoder_t *)p_this;
 861     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 862
 863     /* The decoder's main loop */
 864     for( ;; )
 865     {
 866         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 867
 868         /* Make sure there is no cancellation point other than this one^^.
 869          * If you need one, be sure to push cleanup of p_block. */
 870         DecoderSignalBuffering( p_dec, p_block == NULL );
 871
 872         if( p_block )
 873         {
 874             int canc = vlc_savecancel();
 875
 876             if( p_dec->b_error )
 877                 DecoderError( p_dec, p_block );
 878             else
 879                 DecoderProcess( p_dec, p_block );
 880
 881             vlc_restorecancel( canc );
 882         }
 883     }
 884     return NULL;
 885 }
 886
 887 static block_t *DecoderBlockFlushNew()
 888 {
 889     block_t *p_null = block_Alloc( 128 );
 890     if( !p_null )
 891         return NULL;
 892
 893     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 894                        BLOCK_FLAG_CORRUPTED |
 895                        BLOCK_FLAG_CORE_FLUSH;
 896     memset( p_null->p_buffer, 0, p_null->i_buffer );
 897
 898     return p_null;
 899 }
 900
 901 static void DecoderFlush( decoder_t *p_dec )
 902 {
 903     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 904
 905     vlc_assert_locked( &p_owner->lock );
 906
 907     /* Empty the fifo */
 908     block_FifoEmpty( p_owner->p_fifo );
 909
 910     /* Monitor for flush end */
 911     p_owner->b_flushing = true;
 912     vlc_cond_signal( &p_owner->wait_request );
 913
 914     /* Send a special block */
 915     block_t *p_null = DecoderBlockFlushNew();
 916     if( !p_null )
 917         return;
 918     input_DecoderDecode( p_dec, p_null, false );
 919
 920     /* */
 921     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 922         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 923 }
 924
 925 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 926 {
 927     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 928
 929     vlc_mutex_lock( &p_owner->lock );
 930
 931     if( p_owner->b_buffering )
 932     {
 933         if( b_full )
 934             p_owner->buffer.b_full = true;
 935         vlc_cond_signal( &p_owner->wait_acknowledge );
 936     }
 937
 938     vlc_mutex_unlock( &p_owner->lock );
 939 }
 940
 941 static bool DecoderIsFlushing( decoder_t *p_dec )
 942 {
 943     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 944     bool b_flushing;
 945
 946     vlc_mutex_lock( &p_owner->lock );
 947
 948     b_flushing = p_owner->b_flushing;
 949
 950     vlc_mutex_unlock( &p_owner->lock );
 951
 952     return b_flushing;
 953 }
 954
 955 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
 956 {
 957     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 958
 959     vlc_assert_locked( &p_owner->lock );
 960
 961     while( !p_owner->b_flushing )
 962     {
 963         if( p_owner->b_paused )
 964         {
 965             if( p_owner->b_buffering && !p_owner->buffer.b_full )
 966                 break;
 967             if( p_owner->pause.i_ignore > 0 )
 968             {
 969                 p_owner->pause.i_ignore--;
 970                 break;
 971             }
 972         }
 973         else
 974         {
 975             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
 976                 break;
 977         }
 978         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
 979     }
 980
 981     if( pb_reject )
 982         *pb_reject = p_owner->b_flushing;
 983 }
 984
 985 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 986 {
 987     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 988
 989     vlc_assert_locked( &p_owner->lock );
 990
 991     /* XXX only audio and video output have to be paused.
 992      * - for sout it is useless
 993      * - for subs, it is done by the vout
 994      */
 995     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 996     {
 997         if( p_owner->p_aout && p_owner->p_aout_input )
 998             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
 999                                  b_paused, i_date );
1000     }
1001     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1002     {
1003         if( p_owner->p_vout )
1004             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1005     }
1006 }
1007 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1008 {
1009     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1010         *pi_preroll = INT64_MAX;
1011     else if( p->i_dts > VLC_TS_INVALID )
1012         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1013     else if( p->i_pts > VLC_TS_INVALID )
1014         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1015 }
1016
1017 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1018 {
1019     mtime_t current_date = mdate();
1020
1021     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1022     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1023     {
1024         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1025          * for teletext streams. */
1026         return current_date + 400000;
1027     }
1028     return i_ts;
1029 }
1030
1031 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1032                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1033 {
1034     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1035     input_clock_t   *p_clock = p_owner->p_clock;
1036
1037     vlc_assert_locked( &p_owner->lock );
1038
1039     const mtime_t i_es_delay = p_owner->i_ts_delay;
1040
1041     if( p_clock )
1042     {
1043         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1044         int i_rate;
1045
1046         if( *pi_ts0 > VLC_TS_INVALID )
1047         {
1048             *pi_ts0 += i_es_delay;
1049             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1050                 *pi_ts1 += i_es_delay;
1051             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1052                 *pi_ts0 = VLC_TS_INVALID;
1053         }
1054         else
1055         {
1056             i_rate = input_clock_GetRate( p_clock );
1057         }
1058
1059         /* Do not create ephemere data because of rounding errors */
1060         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1061             *pi_ts1 += 1;
1062
1063         if( pi_duration )
1064             *pi_duration = ( *pi_duration * i_rate +
1065                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1066
1067         if( pi_rate )
1068             *pi_rate = i_rate;
1069
1070         if( b_telx )
1071         {
1072             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1073             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1074                 *pi_ts1 = *pi_ts0;
1075         }
1076     }
1077 }
1078
1079 /**
1080  * If *pb_reject, it does nothing, otherwise it waits for the given
1081  * deadline or a flush request (in which case it set *pi_reject to true.
1082  */
1083 static void DecoderWaitDate( decoder_t *p_dec,
1084                              bool *pb_reject, mtime_t i_deadline )
1085 {
1086     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1087
1088     if( *pb_reject || i_deadline < 0 )
1089         return;
1090
1091     for( ;; )
1092     {
1093         vlc_mutex_lock( &p_owner->lock );
1094         if( p_owner->b_flushing || p_dec->b_die )
1095         {
1096             *pb_reject = true;
1097             vlc_mutex_unlock( &p_owner->lock );
1098             break;
1099         }
1100         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1101                                         i_deadline );
1102         vlc_mutex_unlock( &p_owner->lock );
1103         if( i_ret )
1104             break;
1105     }
1106 }
1107
1108 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1109                               int *pi_played_sum, int *pi_lost_sum )
1110 {
1111     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1112     aout_instance_t *p_aout = p_owner->p_aout;
1113     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1114
1115     /* */
1116     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1117     {
1118         msg_Warn( p_dec, "non-dated audio buffer received" );
1119         *pi_lost_sum += 1;
1120         aout_BufferFree( p_audio );
1121         return;
1122     }
1123
1124     /* */
1125     vlc_mutex_lock( &p_owner->lock );
1126
1127     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1128     {
1129         p_audio->p_next = NULL;
1130
1131         *p_owner->buffer.pp_audio_next = p_audio;
1132         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1133
1134         p_owner->buffer.i_count++;
1135         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1136             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1137         {
1138             p_owner->buffer.b_full = true;
1139             vlc_cond_signal( &p_owner->wait_acknowledge );
1140         }
1141     }
1142
1143     for( ;; )
1144     {
1145         bool b_has_more = false;
1146         bool b_reject;
1147         DecoderWaitUnblock( p_dec, &b_reject );
1148
1149         if( p_owner->b_buffering )
1150         {
1151             vlc_mutex_unlock( &p_owner->lock );
1152             return;
1153         }
1154
1155         /* */
1156         if( p_owner->buffer.p_audio )
1157         {
1158             p_audio = p_owner->buffer.p_audio;
1159
1160             p_owner->buffer.p_audio = p_audio->p_next;
1161             p_owner->buffer.i_count--;
1162
1163             b_has_more = p_owner->buffer.p_audio != NULL;
1164             if( !b_has_more )
1165                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1166         }
1167
1168         /* */
1169         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1170         int i_rate = INPUT_RATE_DEFAULT;
1171
1172         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1173                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1174
1175         vlc_mutex_unlock( &p_owner->lock );
1176
1177         if( !p_aout || !p_aout_input ||
1178             p_audio->i_pts <= VLC_TS_INVALID ||
1179             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1180             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1181             b_reject = true;
1182
1183         DecoderWaitDate( p_dec, &b_reject,
1184                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1185
1186         if( !b_reject )
1187         {
1188             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1189                 *pi_played_sum += 1;
1190             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1191         }
1192         else
1193         {
1194             if( b_dated )
1195                 msg_Warn( p_aout, "received buffer in the future" );
1196             else
1197                 msg_Warn( p_dec, "non-dated audio buffer received" );
1198
1199             *pi_lost_sum += 1;
1200             aout_BufferFree( p_audio );
1201         }
1202
1203         if( !b_has_more )
1204             break;
1205
1206         vlc_mutex_lock( &p_owner->lock );
1207         if( !p_owner->buffer.p_audio )
1208         {
1209             vlc_mutex_unlock( &p_owner->lock );
1210             break;
1211         }
1212     }
1213 }
1214
1215 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1216 {
1217     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1218     input_thread_t  *p_input = p_owner->p_input;
1219     aout_buffer_t   *p_aout_buf;
1220     int i_decoded = 0;
1221     int i_lost = 0;
1222     int i_played = 0;
1223
1224     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1225     {
1226         aout_instance_t *p_aout = p_owner->p_aout;
1227         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1228
1229         if( p_dec->b_die )
1230         {
1231             /* It prevent freezing VLC in case of broken decoder */
1232             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1233             if( p_block )
1234                 block_Release( p_block );
1235             break;
1236         }
1237         i_decoded++;
1238
1239         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1240             p_aout_buf->i_pts < p_owner->i_preroll_end )
1241         {
1242             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1243             continue;
1244         }
1245
1246         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1247         {
1248             msg_Dbg( p_dec, "End of audio preroll" );
1249             if( p_owner->p_aout && p_owner->p_aout_input )
1250                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1251             /* */
1252             p_owner->i_preroll_end = VLC_TS_INVALID;
1253         }
1254
1255         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1256     }
1257
1258     /* Update ugly stat */
1259     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1260     {
1261         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1262
1263         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1264                              i_lost, NULL );
1265         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1266                              i_played, NULL );
1267         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1268                              i_decoded, NULL );
1269
1270         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1271     }
1272 }
1273 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1274 {
1275     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1276     block_t *p_cc;
1277     bool pb_present[4];
1278     bool b_processed = false;
1279     int i;
1280     int i_cc_decoder;
1281
1282     assert( p_dec_cc->pf_get_cc != NULL );
1283
1284     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1285     if( !p_owner->cc.b_supported )
1286         return;
1287
1288     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1289     if( !p_cc )
1290         return;
1291
1292     vlc_mutex_lock( &p_owner->lock );
1293     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1294     {
1295         p_owner->cc.pb_present[i] |= pb_present[i];
1296         if( p_owner->cc.pp_decoder[i] )
1297             i_cc_decoder++;
1298     }
1299
1300     for( i = 0; i < 4; i++ )
1301     {
1302         if( !p_owner->cc.pp_decoder[i] )
1303             continue;
1304
1305         if( i_cc_decoder > 1 )
1306             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1307         else
1308             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1309         i_cc_decoder--;
1310         b_processed = true;
1311     }
1312     vlc_mutex_unlock( &p_owner->lock );
1313
1314     if( !b_processed )
1315         block_Release( p_cc );
1316 }
1317
1318 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1319                               int *pi_played_sum, int *pi_lost_sum )
1320 {
1321     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1322     vout_thread_t  *p_vout = p_owner->p_vout;
1323     bool b_first_buffered;
1324
1325     if( p_picture->date <= VLC_TS_INVALID )
1326     {
1327         msg_Warn( p_vout, "non-dated video buffer received" );
1328         *pi_lost_sum += 1;
1329         vout_DropPicture( p_vout, p_picture );
1330         return;
1331     }
1332
1333     /* */
1334     vlc_mutex_lock( &p_owner->lock );
1335
1336     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1337     {
1338         p_picture->p_next = NULL;
1339
1340         *p_owner->buffer.pp_picture_next = p_picture;
1341         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1342
1343         p_owner->buffer.i_count++;
1344         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1345             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1346         {
1347             p_owner->buffer.b_full = true;
1348             vlc_cond_signal( &p_owner->wait_acknowledge );
1349         }
1350     }
1351     b_first_buffered = p_owner->buffer.p_picture != NULL;
1352
1353     for( ;; b_first_buffered = false )
1354     {
1355         bool b_has_more = false;
1356
1357         bool b_reject;
1358
1359         DecoderWaitUnblock( p_dec, &b_reject );
1360
1361         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1362         {
1363             vlc_mutex_unlock( &p_owner->lock );
1364             return;
1365         }
1366         bool b_buffering_first = p_owner->b_buffering;
1367
1368         /* */
1369         if( p_owner->buffer.p_picture )
1370         {
1371             p_picture = p_owner->buffer.p_picture;
1372
1373             p_owner->buffer.p_picture = p_picture->p_next;
1374             p_owner->buffer.i_count--;
1375
1376             b_has_more = p_owner->buffer.p_picture != NULL;
1377             if( !b_has_more )
1378                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1379         }
1380
1381         /* */
1382         if( b_buffering_first )
1383         {
1384             assert( p_owner->buffer.b_first );
1385             assert( !p_owner->buffer.i_count );
1386             msg_Dbg( p_dec, "Received first picture" );
1387             p_owner->buffer.b_first = false;
1388             p_picture->b_force = true;
1389         }
1390
1391         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1392         int i_rate = INPUT_RATE_DEFAULT;
1393         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1394                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1395
1396         vlc_mutex_unlock( &p_owner->lock );
1397
1398         /* */
1399         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1400             b_reject = true;
1401
1402         if( !b_reject )
1403         {
1404             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1405             {
1406                 /* Be sure to not display old picture after our own */
1407                 vout_Flush( p_vout, p_picture->date );
1408                 p_owner->i_last_rate = i_rate;
1409             }
1410             vout_DisplayPicture( p_vout, p_picture );
1411         }
1412         else
1413         {
1414             if( b_dated )
1415                 msg_Warn( p_vout, "early picture skipped" );
1416             else
1417                 msg_Warn( p_vout, "non-dated video buffer received" );
1418
1419             *pi_lost_sum += 1;
1420             vout_DropPicture( p_vout, p_picture );
1421         }
1422         int i_tmp_display;
1423         int i_tmp_lost;
1424         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1425
1426         *pi_played_sum += i_tmp_display;
1427         *pi_lost_sum += i_tmp_lost;
1428
1429         if( !b_has_more || b_buffering_first )
1430             break;
1431
1432         vlc_mutex_lock( &p_owner->lock );
1433         if( !p_owner->buffer.p_picture )
1434         {
1435             vlc_mutex_unlock( &p_owner->lock );
1436             break;
1437         }
1438     }
1439 }
1440
1441 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1442 {
1443     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1444     input_thread_t *p_input = p_owner->p_input;
1445     picture_t      *p_pic;
1446     int i_lost = 0;
1447     int i_decoded = 0;
1448     int i_displayed = 0;
1449
1450     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1451     {
1452         vout_thread_t  *p_vout = p_owner->p_vout;
1453         if( p_dec->b_die )
1454         {
1455             /* It prevent freezing VLC in case of broken decoder */
1456             vout_DropPicture( p_vout, p_pic );
1457             if( p_block )
1458                 block_Release( p_block );
1459             break;
1460         }
1461
1462         i_decoded++;
1463
1464         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1465         {
1466             vout_DropPicture( p_vout, p_pic );
1467             continue;
1468         }
1469
1470         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1471         {
1472             msg_Dbg( p_dec, "End of video preroll" );
1473             if( p_vout )
1474                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1475             /* */
1476             p_owner->i_preroll_end = VLC_TS_INVALID;
1477         }
1478
1479         if( p_dec->pf_get_cc &&
1480             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1481             DecoderGetCc( p_dec, p_dec );
1482
1483         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1484     }
1485     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1486     {
1487         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1488
1489         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1490                              i_decoded, NULL );
1491         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1492                              i_lost , NULL);
1493
1494         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1495                              i_displayed, NULL);
1496
1497         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1498     }
1499 }
1500
1501 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1502                             bool b_telx )
1503 {
1504     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1505     vout_thread_t *p_vout = p_owner->p_spu_vout;
1506
1507     /* */
1508     if( p_subpic->i_start <= VLC_TS_INVALID )
1509     {
1510         msg_Warn( p_dec, "non-dated spu buffer received" );
1511         subpicture_Delete( p_subpic );
1512         return;
1513     }
1514
1515     /* */
1516     vlc_mutex_lock( &p_owner->lock );
1517
1518     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1519     {
1520         p_subpic->p_next = NULL;
1521
1522         *p_owner->buffer.pp_subpic_next = p_subpic;
1523         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1524
1525         p_owner->buffer.i_count++;
1526         /* XXX it is important to be full after the first one */
1527         if( p_owner->buffer.i_count > 0 )
1528         {
1529             p_owner->buffer.b_full = true;
1530             vlc_cond_signal( &p_owner->wait_acknowledge );
1531         }
1532     }
1533
1534     for( ;; )
1535     {
1536         bool b_has_more = false;
1537         bool b_reject;
1538         DecoderWaitUnblock( p_dec, &b_reject );
1539
1540         if( p_owner->b_buffering )
1541         {
1542             vlc_mutex_unlock( &p_owner->lock );
1543             return;
1544         }
1545
1546         /* */
1547         if( p_owner->buffer.p_subpic )
1548         {
1549             p_subpic = p_owner->buffer.p_subpic;
1550
1551             p_owner->buffer.p_subpic = p_subpic->p_next;
1552             p_owner->buffer.i_count--;
1553
1554             b_has_more = p_owner->buffer.p_subpic != NULL;
1555             if( !b_has_more )
1556                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1557         }
1558
1559         /* */
1560         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1561                       NULL, INT64_MAX, b_telx );
1562
1563         vlc_mutex_unlock( &p_owner->lock );
1564
1565         if( p_subpic->i_start <= VLC_TS_INVALID )
1566             b_reject = true;
1567
1568         DecoderWaitDate( p_dec, &b_reject,
1569                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1570
1571         if( !b_reject )
1572             spu_DisplaySubpicture( vout_GetSpu( p_vout ), p_subpic );
1573         else
1574             subpicture_Delete( p_subpic );
1575
1576         if( !b_has_more )
1577             break;
1578         vlc_mutex_lock( &p_owner->lock );
1579         if( !p_owner->buffer.p_subpic )
1580         {
1581             vlc_mutex_unlock( &p_owner->lock );
1582             break;
1583         }
1584     }
1585 }
1586
1587 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1588                              bool b_telx )
1589 {
1590     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1591
1592     assert( p_owner->p_clock );
1593     assert( !p_sout_block->p_next );
1594
1595     vlc_mutex_lock( &p_owner->lock );
1596
1597     if( p_owner->b_buffering || p_owner->buffer.p_block )
1598     {
1599         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1600
1601         p_owner->buffer.i_count++;
1602         /* XXX it is important to be full after the first one */
1603         if( p_owner->buffer.i_count > 0 )
1604         {
1605             p_owner->buffer.b_full = true;
1606             vlc_cond_signal( &p_owner->wait_acknowledge );
1607         }
1608     }
1609
1610     for( ;; )
1611     {
1612         bool b_has_more = false;
1613         bool b_reject;
1614         DecoderWaitUnblock( p_dec, &b_reject );
1615
1616         if( p_owner->b_buffering )
1617         {
1618             vlc_mutex_unlock( &p_owner->lock );
1619             return;
1620         }
1621
1622         /* */
1623         if( p_owner->buffer.p_block )
1624         {
1625             p_sout_block = p_owner->buffer.p_block;
1626
1627             p_owner->buffer.p_block = p_sout_block->p_next;
1628             p_owner->buffer.i_count--;
1629
1630             b_has_more = p_owner->buffer.p_block != NULL;
1631             if( !b_has_more )
1632                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1633         }
1634         p_sout_block->p_next = NULL;
1635
1636         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1637                       &p_sout_block->i_length,
1638                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1639
1640         vlc_mutex_unlock( &p_owner->lock );
1641
1642         if( !b_reject )
1643             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1644         else
1645             block_Release( p_sout_block );
1646
1647         if( !b_has_more )
1648             break;
1649         vlc_mutex_lock( &p_owner->lock );
1650         if( !p_owner->buffer.p_block )
1651         {
1652             vlc_mutex_unlock( &p_owner->lock );
1653             break;
1654         }
1655     }
1656 }
1657
1658 /* */
1659 static void DecoderFlushBuffering( decoder_t *p_dec )
1660 {
1661     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1662
1663     vlc_assert_locked( &p_owner->lock );
1664
1665     while( p_owner->buffer.p_picture )
1666     {
1667         picture_t *p_picture = p_owner->buffer.p_picture;
1668
1669         p_owner->buffer.p_picture = p_picture->p_next;
1670         p_owner->buffer.i_count--;
1671
1672         if( p_owner->p_vout )
1673             vout_DropPicture( p_owner->p_vout, p_picture );
1674
1675         if( !p_owner->buffer.p_picture )
1676             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1677     }
1678     while( p_owner->buffer.p_audio )
1679     {
1680         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1681
1682         p_owner->buffer.p_audio = p_audio->p_next;
1683         p_owner->buffer.i_count--;
1684
1685         aout_BufferFree( p_audio );
1686
1687         if( !p_owner->buffer.p_audio )
1688             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1689     }
1690     while( p_owner->buffer.p_subpic )
1691     {
1692         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1693
1694         p_owner->buffer.p_subpic = p_subpic->p_next;
1695         p_owner->buffer.i_count--;
1696
1697         subpicture_Delete( p_subpic );
1698
1699         if( !p_owner->buffer.p_subpic )
1700             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1701     }
1702     if( p_owner->buffer.p_block )
1703     {
1704         block_ChainRelease( p_owner->buffer.p_block );
1705
1706         p_owner->buffer.i_count = 0;
1707         p_owner->buffer.p_block = NULL;
1708         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1709     }
1710 }
1711
1712 /* This function process a block for sout
1713  */
1714 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1715 {
1716     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1717     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1718     block_t *p_sout_block;
1719
1720     while( ( p_sout_block =
1721                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1722     {
1723         if( !p_owner->p_sout_input )
1724         {
1725             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1726
1727             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1728             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1729             if( p_dec->fmt_in.psz_language )
1730             {
1731                 free( p_owner->sout.psz_language );
1732                 p_owner->sout.psz_language =
1733                     strdup( p_dec->fmt_in.psz_language );
1734             }
1735
1736             p_owner->p_sout_input =
1737                 sout_InputNew( p_owner->p_sout,
1738                                &p_owner->sout );
1739
1740             if( p_owner->p_sout_input == NULL )
1741             {
1742                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1743                          (char *)&p_owner->sout.i_codec );
1744                 p_dec->b_error = true;
1745
1746                 while( p_sout_block )
1747                 {
1748                     block_t *p_next = p_sout_block->p_next;
1749                     block_Release( p_sout_block );
1750                     p_sout_block = p_next;
1751                 }
1752                 break;
1753             }
1754         }
1755
1756         while( p_sout_block )
1757         {
1758             block_t *p_next = p_sout_block->p_next;
1759
1760             p_sout_block->p_next = NULL;
1761
1762             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1763
1764             p_sout_block = p_next;
1765         }
1766     }
1767 }
1768
1769 /* This function process a video block
1770  */
1771 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1772 {
1773     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1774
1775     if( p_owner->p_packetizer )
1776     {
1777         block_t *p_packetized_block;
1778         decoder_t *p_packetizer = p_owner->p_packetizer;
1779
1780         while( (p_packetized_block =
1781                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1782         {
1783             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1784             {
1785                 es_format_Clean( &p_dec->fmt_in );
1786                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1787             }
1788             if( p_packetizer->pf_get_cc )
1789                 DecoderGetCc( p_dec, p_packetizer );
1790
1791             while( p_packetized_block )
1792             {
1793                 block_t *p_next = p_packetized_block->p_next;
1794                 p_packetized_block->p_next = NULL;
1795
1796                 DecoderDecodeVideo( p_dec, p_packetized_block );
1797
1798                 p_packetized_block = p_next;
1799             }
1800         }
1801         /* The packetizer does not output a block that tell the decoder to flush
1802          * do it ourself */
1803         if( b_flush )
1804         {
1805             block_t *p_null = DecoderBlockFlushNew();
1806             if( p_null )
1807                 DecoderDecodeVideo( p_dec, p_null );
1808         }
1809     }
1810     else if( p_block )
1811     {
1812         DecoderDecodeVideo( p_dec, p_block );
1813     }
1814
1815     if( b_flush && p_owner->p_vout )
1816         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1817 }
1818
1819 /* This function process a audio block
1820  */
1821 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1822 {
1823     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1824
1825     if( p_owner->p_packetizer )
1826     {
1827         block_t *p_packetized_block;
1828         decoder_t *p_packetizer = p_owner->p_packetizer;
1829
1830         while( (p_packetized_block =
1831                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1832         {
1833             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1834             {
1835                 es_format_Clean( &p_dec->fmt_in );
1836                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1837             }
1838
1839             while( p_packetized_block )
1840             {
1841                 block_t *p_next = p_packetized_block->p_next;
1842                 p_packetized_block->p_next = NULL;
1843
1844                 DecoderDecodeAudio( p_dec, p_packetized_block );
1845
1846                 p_packetized_block = p_next;
1847             }
1848         }
1849         /* The packetizer does not output a block that tell the decoder to flush
1850          * do it ourself */
1851         if( b_flush )
1852         {
1853             block_t *p_null = DecoderBlockFlushNew();
1854             if( p_null )
1855                 DecoderDecodeAudio( p_dec, p_null );
1856         }
1857     }
1858     else if( p_block )
1859     {
1860         DecoderDecodeAudio( p_dec, p_block );
1861     }
1862
1863     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1864         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1865 }
1866
1867 /* This function process a subtitle block
1868  */
1869 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1870 {
1871     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1872     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1873
1874     input_thread_t *p_input = p_owner->p_input;
1875     vout_thread_t *p_vout;
1876     subpicture_t *p_spu;
1877
1878     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1879     {
1880         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1881         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1882         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1883
1884         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1885         if( p_vout && p_owner->p_spu_vout == p_vout )
1886         {
1887             /* Preroll does not work very well with subtitle */
1888             if( p_spu->i_start > VLC_TS_INVALID &&
1889                 p_spu->i_start < p_owner->i_preroll_end &&
1890                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1891             {
1892                 subpicture_Delete( p_spu );
1893             }
1894             else
1895             {
1896                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1897             }
1898         }
1899         else
1900         {
1901             subpicture_Delete( p_spu );
1902         }
1903         if( p_vout )
1904             vlc_object_release( p_vout );
1905     }
1906
1907     if( b_flush && p_owner->p_spu_vout )
1908     {
1909         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1910
1911         if( p_vout && p_owner->p_spu_vout == p_vout )
1912             spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR,
1913                          p_owner->i_spu_channel );
1914
1915         if( p_vout )
1916             vlc_object_release( p_vout );
1917     }
1918 }
1919
1920 /* */
1921 static void DecoderProcessOnFlush( decoder_t *p_dec )
1922 {
1923     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1924
1925     vlc_mutex_lock( &p_owner->lock );
1926     DecoderFlushBuffering( p_dec );
1927
1928     if( p_owner->b_flushing )
1929     {
1930         p_owner->b_flushing = false;
1931         vlc_cond_signal( &p_owner->wait_acknowledge );
1932     }
1933     vlc_mutex_unlock( &p_owner->lock );
1934 }
1935
1936 /**
1937  * Decode a block
1938  *
1939  * \param p_dec the decoder object
1940  * \param p_block the block to decode
1941  * \return VLC_SUCCESS or an error code
1942  */
1943 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1944 {
1945     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1946     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1947
1948     if( p_block && p_block->i_buffer <= 0 )
1949     {
1950         assert( !b_flush_request );
1951         block_Release( p_block );
1952         return;
1953     }
1954
1955 #ifdef ENABLE_SOUT
1956     if( p_owner->b_packetizer )
1957     {
1958         if( p_block )
1959             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1960
1961         DecoderProcessSout( p_dec, p_block );
1962     }
1963     else
1964 #endif
1965     {
1966         bool b_flush = false;
1967
1968         if( p_block )
1969         {
1970             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1971             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1972
1973             b_flush = !b_flushing && b_flush_request;
1974
1975             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1976         }
1977
1978         if( p_dec->fmt_out.i_cat == AUDIO_ES )
1979         {
1980             DecoderProcessAudio( p_dec, p_block, b_flush );
1981         }
1982         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1983         {
1984             DecoderProcessVideo( p_dec, p_block, b_flush );
1985         }
1986         else if( p_dec->fmt_out.i_cat == SPU_ES )
1987         {
1988             DecoderProcessSpu( p_dec, p_block, b_flush );
1989         }
1990         else
1991         {
1992             msg_Err( p_dec, "unknown ES format" );
1993             p_dec->b_error = true;
1994         }
1995     }
1996
1997     /* */
1998     if( b_flush_request )
1999         DecoderProcessOnFlush( p_dec );
2000 }
2001
2002 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2003 {
2004     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2005
2006     /* */
2007     if( p_block )
2008         block_Release( p_block );
2009
2010     if( b_flush_request )
2011         DecoderProcessOnFlush( p_dec );
2012 }
2013
2014
2015 /**
2016  * Destroys a decoder object
2017  *
2018  * \param p_dec the decoder object
2019  * \return nothing
2020  */
2021 static void DeleteDecoder( decoder_t * p_dec )
2022 {
2023     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2024
2025     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2026              (char*)&p_dec->fmt_in.i_codec,
2027              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2028
2029     /* Free all packets still in the decoder fifo. */
2030     block_FifoEmpty( p_owner->p_fifo );
2031     block_FifoRelease( p_owner->p_fifo );
2032
2033     /* */
2034     vlc_mutex_lock( &p_owner->lock );
2035     DecoderFlushBuffering( p_dec );
2036     vlc_mutex_unlock( &p_owner->lock );
2037
2038     /* Cleanup */
2039     if( p_owner->p_aout_input )
2040         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2041     if( p_owner->p_aout )
2042     {
2043         input_resource_RequestAout( p_owner->p_input->p->p_resource,
2044                                      p_owner->p_aout );
2045         input_SendEventAout( p_owner->p_input );
2046         p_owner->p_aout = NULL;
2047     }
2048     if( p_owner->p_vout )
2049     {
2050         /* Hack to make sure all the the pictures are freed by the decoder
2051          * and that the vout is not paused anymore */
2052         vout_FixLeaks( p_owner->p_vout, true );
2053         if( p_owner->b_paused )
2054             vout_ChangePause( p_owner->p_vout, false, mdate() );
2055
2056         /* */
2057         input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, true );
2058         input_SendEventVout( p_owner->p_input );
2059     }
2060
2061 #ifdef ENABLE_SOUT
2062     if( p_owner->p_sout_input )
2063     {
2064         sout_InputDelete( p_owner->p_sout_input );
2065         es_format_Clean( &p_owner->sout );
2066     }
2067 #endif
2068
2069     if( p_dec->fmt_out.i_cat == SPU_ES )
2070     {
2071         vout_thread_t *p_vout;
2072
2073         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2074         if( p_vout )
2075         {
2076             if( p_owner->p_spu_vout == p_vout )
2077                 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2078             vlc_object_release( p_vout );
2079         }
2080     }
2081
2082     es_format_Clean( &p_dec->fmt_in );
2083     es_format_Clean( &p_dec->fmt_out );
2084     if( p_dec->p_description )
2085         vlc_meta_Delete( p_dec->p_description );
2086     es_format_Clean( &p_owner->fmt_description );
2087     if( p_owner->p_description )
2088         vlc_meta_Delete( p_owner->p_description );
2089
2090     if( p_owner->p_packetizer )
2091     {
2092         module_unneed( p_owner->p_packetizer,
2093                        p_owner->p_packetizer->p_module );
2094         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2095         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2096         if( p_owner->p_packetizer->p_description )
2097             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2098         vlc_object_release( p_owner->p_packetizer );
2099     }
2100
2101     vlc_cond_destroy( &p_owner->wait_acknowledge );
2102     vlc_cond_destroy( &p_owner->wait_request );
2103     vlc_mutex_destroy( &p_owner->lock );
2104
2105     vlc_object_release( p_dec );
2106
2107     free( p_owner );
2108 }
2109
2110 /*****************************************************************************
2111  * Buffers allocation callbacks for the decoders
2112  *****************************************************************************/
2113 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2114 {
2115     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2116
2117     vlc_assert_locked( &p_owner->lock );
2118
2119     p_owner->b_fmt_description = true;
2120
2121     /* Copy es_format */
2122     es_format_Clean( &p_owner->fmt_description );
2123     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2124
2125     /* Move p_description */
2126     if( p_owner->p_description && p_dec->p_description )
2127         vlc_meta_Delete( p_owner->p_description );
2128     p_owner->p_description = p_dec->p_description;
2129     p_dec->p_description = NULL;
2130 }
2131 static vout_thread_t *aout_request_vout( void *p_private,
2132                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2133 {
2134     decoder_t *p_dec = p_private;
2135     input_thread_t *p_input = p_dec->p_owner->p_input;
2136
2137     p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, b_recyle );
2138     input_SendEventVout( p_input );
2139
2140     return p_vout;
2141 }
2142
2143 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2144 {
2145     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2146     aout_buffer_t *p_buffer;
2147
2148     if( p_owner->p_aout_input != NULL &&
2149         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2150           p_dec->fmt_out.audio.i_original_channels !=
2151               p_owner->audio.i_original_channels ||
2152           p_dec->fmt_out.audio.i_bytes_per_frame !=
2153               p_owner->audio.i_bytes_per_frame ) )
2154     {
2155         aout_input_t *p_aout_input = p_owner->p_aout_input;
2156
2157         /* Parameters changed, restart the aout */
2158         vlc_mutex_lock( &p_owner->lock );
2159
2160         DecoderFlushBuffering( p_dec );
2161
2162         p_owner->p_aout_input = NULL;
2163         aout_DecDelete( p_owner->p_aout, p_aout_input );
2164
2165         vlc_mutex_unlock( &p_owner->lock );
2166     }
2167
2168     if( p_owner->p_aout_input == NULL )
2169     {
2170         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2171         audio_sample_format_t format;
2172         aout_input_t *p_aout_input;
2173         aout_instance_t *p_aout;
2174         aout_request_vout_t request_vout;
2175
2176         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2177         p_owner->audio = p_dec->fmt_out.audio;
2178
2179         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2180         if( i_force_dolby &&
2181             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2182                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2183         {
2184             if( i_force_dolby == 1 )
2185             {
2186                 format.i_original_channels = format.i_original_channels |
2187                                              AOUT_CHAN_DOLBYSTEREO;
2188             }
2189             else /* i_force_dolby == 2 */
2190             {
2191                 format.i_original_channels = format.i_original_channels &
2192                                              ~AOUT_CHAN_DOLBYSTEREO;
2193             }
2194         }
2195
2196         request_vout.pf_request_vout = aout_request_vout;
2197         request_vout.p_private = p_dec;
2198
2199         p_aout = p_owner->p_aout;
2200         if( !p_aout )
2201             p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2202         p_aout_input = aout_DecNew( p_dec, &p_aout,
2203                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2204
2205         vlc_mutex_lock( &p_owner->lock );
2206
2207         p_owner->p_aout = p_aout;
2208         p_owner->p_aout_input = p_aout_input;
2209         DecoderUpdateFormatLocked( p_dec );
2210
2211         vlc_mutex_unlock( &p_owner->lock );
2212
2213         input_SendEventAout( p_owner->p_input );
2214
2215         if( p_owner->p_aout_input == NULL )
2216         {
2217             msg_Err( p_dec, "failed to create audio output" );
2218             p_dec->b_error = true;
2219             return NULL;
2220         }
2221         p_dec->fmt_out.audio.i_bytes_per_frame =
2222             p_owner->audio.i_bytes_per_frame;
2223     }
2224
2225     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2226
2227     return p_buffer;
2228 }
2229
2230 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2231 {
2232     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2233
2234     aout_DecDeleteBuffer( p_owner->p_aout,
2235                           p_owner->p_aout_input, p_buffer );
2236 }
2237
2238
2239 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2240
2241 static picture_t *vout_new_buffer( decoder_t *p_dec )
2242 {
2243     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2244
2245     if( p_owner->p_vout == NULL ||
2246         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2247         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2248         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2249         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2250         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2251     {
2252         vout_thread_t *p_vout;
2253
2254         if( !p_dec->fmt_out.video.i_width ||
2255             !p_dec->fmt_out.video.i_height )
2256         {
2257             /* Can't create a new vout without display size */
2258             return NULL;
2259         }
2260
2261         if( !p_dec->fmt_out.video.i_visible_width ||
2262             !p_dec->fmt_out.video.i_visible_height )
2263         {
2264             if( p_dec->fmt_in.video.i_visible_width &&
2265                 p_dec->fmt_in.video.i_visible_height )
2266             {
2267                 p_dec->fmt_out.video.i_visible_width =
2268                     p_dec->fmt_in.video.i_visible_width;
2269                 p_dec->fmt_out.video.i_visible_height =
2270                     p_dec->fmt_in.video.i_visible_height;
2271             }
2272             else
2273             {
2274                 p_dec->fmt_out.video.i_visible_width =
2275                     p_dec->fmt_out.video.i_width;
2276                 p_dec->fmt_out.video.i_visible_height =
2277                     p_dec->fmt_out.video.i_height;
2278             }
2279         }
2280
2281         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2282             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2283         {
2284             p_dec->fmt_out.video.i_visible_height = 1080;
2285             if( !(p_dec->fmt_out.video.i_sar_num % 136))
2286             {
2287                 p_dec->fmt_out.video.i_sar_num *= 135;
2288                 p_dec->fmt_out.video.i_sar_den *= 136;
2289             }
2290             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2291         }
2292
2293         if( !p_dec->fmt_out.video.i_sar_num ||
2294             !p_dec->fmt_out.video.i_sar_den )
2295         {
2296             p_dec->fmt_out.video.i_sar_num = 1;
2297             p_dec->fmt_out.video.i_sar_den = 1;
2298         }
2299
2300         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2301                      &p_dec->fmt_out.video.i_sar_den,
2302                      p_dec->fmt_out.video.i_sar_num,
2303                      p_dec->fmt_out.video.i_sar_den, 50000 );
2304
2305         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2306         p_owner->video = p_dec->fmt_out.video;
2307
2308         vlc_mutex_lock( &p_owner->lock );
2309
2310         DecoderFlushBuffering( p_dec );
2311
2312         p_vout = p_owner->p_vout;
2313         p_owner->p_vout = NULL;
2314         vlc_mutex_unlock( &p_owner->lock );
2315
2316         p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2317                                               p_vout, &p_dec->fmt_out.video, true );
2318
2319         vlc_mutex_lock( &p_owner->lock );
2320         p_owner->p_vout = p_vout;
2321
2322         DecoderUpdateFormatLocked( p_dec );
2323
2324         vlc_mutex_unlock( &p_owner->lock );
2325
2326         input_SendEventVout( p_owner->p_input );
2327         if( p_vout == NULL )
2328         {
2329             msg_Err( p_dec, "failed to create video output" );
2330             p_dec->b_error = true;
2331             return NULL;
2332         }
2333
2334         if( p_owner->video.i_rmask )
2335             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2336         if( p_owner->video.i_gmask )
2337             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2338         if( p_owner->video.i_bmask )
2339             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2340     }
2341
2342     /* Get a new picture
2343      */
2344     for( ;; )
2345     {
2346         picture_t *p_picture;
2347
2348         if( p_dec->b_die || p_dec->b_error )
2349             return NULL;
2350
2351         /* The video filter chain required that there is always 1 free buffer
2352          * that it will use as temporary one. It will release the temporary
2353          * buffer once its work is done, so this check is safe even if we don't
2354          * lock around both count() and create().
2355          */
2356         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2357         {
2358             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2359             if( p_picture )
2360                 return p_picture;
2361         }
2362
2363         if( DecoderIsFlushing( p_dec ) )
2364             return NULL;
2365
2366         /* */
2367         DecoderSignalBuffering( p_dec, true );
2368
2369         /* Check the decoder doesn't leak pictures */
2370         vout_FixLeaks( p_owner->p_vout, false );
2371
2372         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2373         msleep( VOUT_OUTMEM_SLEEP );
2374     }
2375 }
2376
2377 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2378 {
2379     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2380 }
2381
2382 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2383 {
2384     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2385 }
2386
2387 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2388 {
2389     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2390 }
2391
2392 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2393 {
2394     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2395     vout_thread_t *p_vout = NULL;
2396     subpicture_t *p_subpic;
2397     int i_attempts = 30;
2398
2399     while( i_attempts-- )
2400     {
2401         if( p_dec->b_die || p_dec->b_error )
2402             break;
2403
2404         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2405         if( p_vout )
2406             break;
2407
2408         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2409     }
2410
2411     if( !p_vout )
2412     {
2413         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2414         return NULL;
2415     }
2416
2417     if( p_owner->p_spu_vout != p_vout )
2418     {
2419         vlc_mutex_lock( &p_owner->lock );
2420
2421         DecoderFlushBuffering( p_dec );
2422
2423         vlc_mutex_unlock( &p_owner->lock );
2424
2425         spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_REGISTER,
2426                      &p_owner->i_spu_channel );
2427         p_owner->i_spu_order = 0;
2428         p_owner->p_spu_vout = p_vout;
2429     }
2430
2431     p_subpic = subpicture_New();
2432     if( p_subpic )
2433     {
2434         p_subpic->i_channel = p_owner->i_spu_channel;
2435         p_subpic->i_order = p_owner->i_spu_order++;
2436         p_subpic->b_subtitle = true;
2437     }
2438
2439     vlc_object_release( p_vout );
2440
2441     return p_subpic;
2442 }
2443
2444 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2445 {
2446     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2447     vout_thread_t *p_vout = NULL;
2448
2449     p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2450     if( !p_vout || p_owner->p_spu_vout != p_vout )
2451     {
2452         if( p_vout )
2453             vlc_object_release( p_vout );
2454         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2455         return;
2456     }
2457
2458     subpicture_Delete( p_subpic );
2459
2460     vlc_object_release( p_vout );
2461 }
2462