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_detach( p_dec->p_owner->p_packetizer );
 788                 vlc_object_release( p_dec->p_owner->p_packetizer );
 789             }
 790         }
 791     }
 792
 793     /* Copy ourself the input replay gain */
 794     if( fmt->i_cat == AUDIO_ES )
 795     {
 796         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 797         {
 798             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 799             {
 800                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 801                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 802             }
 803             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 804             {
 805                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 806                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 807             }
 808         }
 809     }
 810
 811     /* */
 812     vlc_mutex_init( &p_owner->lock );
 813     vlc_cond_init( &p_owner->wait_request );
 814     vlc_cond_init( &p_owner->wait_acknowledge );
 815
 816     p_owner->b_fmt_description = false;
 817     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 818     p_owner->p_description = NULL;
 819
 820     p_owner->b_paused = false;
 821     p_owner->pause.i_date = VLC_TS_INVALID;
 822     p_owner->pause.i_ignore = 0;
 823
 824     p_owner->b_buffering = false;
 825     p_owner->buffer.b_first = true;
 826     p_owner->buffer.b_full = false;
 827     p_owner->buffer.i_count = 0;
 828     p_owner->buffer.p_picture = NULL;
 829     p_owner->buffer.p_subpic = NULL;
 830     p_owner->buffer.p_audio = NULL;
 831     p_owner->buffer.p_block = NULL;
 832
 833     p_owner->b_flushing = false;
 834
 835     /* */
 836     p_owner->cc.b_supported = false;
 837     if( !b_packetizer )
 838     {
 839         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 840             p_owner->cc.b_supported = true;
 841         if( p_dec->pf_get_cc )
 842             p_owner->cc.b_supported = true;
 843     }
 844
 845     for( unsigned i = 0; i < 4; i++ )
 846     {
 847         p_owner->cc.pb_present[i] = false;
 848         p_owner->cc.pp_decoder[i] = NULL;
 849     }
 850     p_owner->i_ts_delay = 0;
 851     return p_dec;
 852 }
 853
 854 /**
 855  * The decoding main loop
 856  *
 857  * \param p_dec the decoder
 858  */
 859 static void *DecoderThread( vlc_object_t *p_this )
 860 {
 861     decoder_t *p_dec = (decoder_t *)p_this;
 862     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 863
 864     /* The decoder's main loop */
 865     for( ;; )
 866     {
 867         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 868
 869         /* Make sure there is no cancellation point other than this one^^.
 870          * If you need one, be sure to push cleanup of p_block. */
 871         DecoderSignalBuffering( p_dec, p_block == NULL );
 872
 873         if( p_block )
 874         {
 875             int canc = vlc_savecancel();
 876
 877             if( p_dec->b_error )
 878                 DecoderError( p_dec, p_block );
 879             else
 880                 DecoderProcess( p_dec, p_block );
 881
 882             vlc_restorecancel( canc );
 883         }
 884     }
 885     return NULL;
 886 }
 887
 888 static block_t *DecoderBlockFlushNew()
 889 {
 890     block_t *p_null = block_Alloc( 128 );
 891     if( !p_null )
 892         return NULL;
 893
 894     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 895                        BLOCK_FLAG_CORRUPTED |
 896                        BLOCK_FLAG_CORE_FLUSH;
 897     memset( p_null->p_buffer, 0, p_null->i_buffer );
 898
 899     return p_null;
 900 }
 901
 902 static void DecoderFlush( decoder_t *p_dec )
 903 {
 904     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 905
 906     vlc_assert_locked( &p_owner->lock );
 907
 908     /* Empty the fifo */
 909     block_FifoEmpty( p_owner->p_fifo );
 910
 911     /* Monitor for flush end */
 912     p_owner->b_flushing = true;
 913     vlc_cond_signal( &p_owner->wait_request );
 914
 915     /* Send a special block */
 916     block_t *p_null = DecoderBlockFlushNew();
 917     if( !p_null )
 918         return;
 919     input_DecoderDecode( p_dec, p_null, false );
 920
 921     /* */
 922     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 923         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 924 }
 925
 926 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 927 {
 928     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 929
 930     vlc_mutex_lock( &p_owner->lock );
 931
 932     if( p_owner->b_buffering )
 933     {
 934         if( b_full )
 935             p_owner->buffer.b_full = true;
 936         vlc_cond_signal( &p_owner->wait_acknowledge );
 937     }
 938
 939     vlc_mutex_unlock( &p_owner->lock );
 940 }
 941
 942 static bool DecoderIsFlushing( decoder_t *p_dec )
 943 {
 944     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 945     bool b_flushing;
 946
 947     vlc_mutex_lock( &p_owner->lock );
 948
 949     b_flushing = p_owner->b_flushing;
 950
 951     vlc_mutex_unlock( &p_owner->lock );
 952
 953     return b_flushing;
 954 }
 955
 956 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
 957 {
 958     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 959
 960     vlc_assert_locked( &p_owner->lock );
 961
 962     while( !p_owner->b_flushing )
 963     {
 964         if( p_owner->b_paused )
 965         {
 966             if( p_owner->b_buffering && !p_owner->buffer.b_full )
 967                 break;
 968             if( p_owner->pause.i_ignore > 0 )
 969             {
 970                 p_owner->pause.i_ignore--;
 971                 break;
 972             }
 973         }
 974         else
 975         {
 976             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
 977                 break;
 978         }
 979         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
 980     }
 981
 982     if( pb_reject )
 983         *pb_reject = p_owner->b_flushing;
 984 }
 985
 986 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 987 {
 988     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 989
 990     vlc_assert_locked( &p_owner->lock );
 991
 992     /* XXX only audio and video output have to be paused.
 993      * - for sout it is useless
 994      * - for subs, it is done by the vout
 995      */
 996     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 997     {
 998         if( p_owner->p_aout && p_owner->p_aout_input )
 999             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1000                                  b_paused, i_date );
1001     }
1002     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1003     {
1004         if( p_owner->p_vout )
1005             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1006     }
1007 }
1008 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1009 {
1010     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1011         *pi_preroll = INT64_MAX;
1012     else if( p->i_dts > VLC_TS_INVALID )
1013         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1014     else if( p->i_pts > VLC_TS_INVALID )
1015         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1016 }
1017
1018 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1019 {
1020     mtime_t current_date = mdate();
1021
1022     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1023     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1024     {
1025         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1026          * for teletext streams. */
1027         return current_date + 400000;
1028     }
1029     return i_ts;
1030 }
1031
1032 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1033                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1034 {
1035     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1036     input_clock_t   *p_clock = p_owner->p_clock;
1037
1038     vlc_assert_locked( &p_owner->lock );
1039
1040     const mtime_t i_es_delay = p_owner->i_ts_delay;
1041
1042     if( p_clock )
1043     {
1044         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1045         int i_rate;
1046
1047         if( *pi_ts0 > VLC_TS_INVALID )
1048         {
1049             *pi_ts0 += i_es_delay;
1050             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1051                 *pi_ts1 += i_es_delay;
1052             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1053                 *pi_ts0 = VLC_TS_INVALID;
1054         }
1055         else
1056         {
1057             i_rate = input_clock_GetRate( p_clock );
1058         }
1059
1060         /* Do not create ephemere data because of rounding errors */
1061         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1062             *pi_ts1 += 1;
1063
1064         if( pi_duration )
1065             *pi_duration = ( *pi_duration * i_rate +
1066                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1067
1068         if( pi_rate )
1069             *pi_rate = i_rate;
1070
1071         if( b_telx )
1072         {
1073             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1074             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1075                 *pi_ts1 = *pi_ts0;
1076         }
1077     }
1078 }
1079
1080 /**
1081  * If *pb_reject, it does nothing, otherwise it waits for the given
1082  * deadline or a flush request (in which case it set *pi_reject to true.
1083  */
1084 static void DecoderWaitDate( decoder_t *p_dec,
1085                              bool *pb_reject, mtime_t i_deadline )
1086 {
1087     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1088
1089     if( *pb_reject || i_deadline < 0 )
1090         return;
1091
1092     for( ;; )
1093     {
1094         vlc_mutex_lock( &p_owner->lock );
1095         if( p_owner->b_flushing || p_dec->b_die )
1096         {
1097             *pb_reject = true;
1098             vlc_mutex_unlock( &p_owner->lock );
1099             break;
1100         }
1101         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1102                                         i_deadline );
1103         vlc_mutex_unlock( &p_owner->lock );
1104         if( i_ret )
1105             break;
1106     }
1107 }
1108
1109 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1110                               int *pi_played_sum, int *pi_lost_sum )
1111 {
1112     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1113     aout_instance_t *p_aout = p_owner->p_aout;
1114     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1115
1116     /* */
1117     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1118     {
1119         msg_Warn( p_dec, "non-dated audio buffer received" );
1120         *pi_lost_sum += 1;
1121         aout_BufferFree( p_audio );
1122         return;
1123     }
1124
1125     /* */
1126     vlc_mutex_lock( &p_owner->lock );
1127
1128     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1129     {
1130         p_audio->p_next = NULL;
1131
1132         *p_owner->buffer.pp_audio_next = p_audio;
1133         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1134
1135         p_owner->buffer.i_count++;
1136         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1137             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1138         {
1139             p_owner->buffer.b_full = true;
1140             vlc_cond_signal( &p_owner->wait_acknowledge );
1141         }
1142     }
1143
1144     for( ;; )
1145     {
1146         bool b_has_more = false;
1147         bool b_reject;
1148         DecoderWaitUnblock( p_dec, &b_reject );
1149
1150         if( p_owner->b_buffering )
1151         {
1152             vlc_mutex_unlock( &p_owner->lock );
1153             return;
1154         }
1155
1156         /* */
1157         if( p_owner->buffer.p_audio )
1158         {
1159             p_audio = p_owner->buffer.p_audio;
1160
1161             p_owner->buffer.p_audio = p_audio->p_next;
1162             p_owner->buffer.i_count--;
1163
1164             b_has_more = p_owner->buffer.p_audio != NULL;
1165             if( !b_has_more )
1166                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1167         }
1168
1169         /* */
1170         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1171         int i_rate = INPUT_RATE_DEFAULT;
1172
1173         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1174                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1175
1176         vlc_mutex_unlock( &p_owner->lock );
1177
1178         if( !p_aout || !p_aout_input ||
1179             p_audio->i_pts <= VLC_TS_INVALID ||
1180             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1181             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1182             b_reject = true;
1183
1184         DecoderWaitDate( p_dec, &b_reject,
1185                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1186
1187         if( !b_reject )
1188         {
1189             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1190                 *pi_played_sum += 1;
1191             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1192         }
1193         else
1194         {
1195             if( b_dated )
1196                 msg_Warn( p_aout, "received buffer in the future" );
1197             else
1198                 msg_Warn( p_dec, "non-dated audio buffer received" );
1199
1200             *pi_lost_sum += 1;
1201             aout_BufferFree( p_audio );
1202         }
1203
1204         if( !b_has_more )
1205             break;
1206
1207         vlc_mutex_lock( &p_owner->lock );
1208         if( !p_owner->buffer.p_audio )
1209         {
1210             vlc_mutex_unlock( &p_owner->lock );
1211             break;
1212         }
1213     }
1214 }
1215
1216 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1217 {
1218     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1219     input_thread_t  *p_input = p_owner->p_input;
1220     aout_buffer_t   *p_aout_buf;
1221     int i_decoded = 0;
1222     int i_lost = 0;
1223     int i_played = 0;
1224
1225     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1226     {
1227         aout_instance_t *p_aout = p_owner->p_aout;
1228         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1229
1230         if( p_dec->b_die )
1231         {
1232             /* It prevent freezing VLC in case of broken decoder */
1233             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1234             if( p_block )
1235                 block_Release( p_block );
1236             break;
1237         }
1238         i_decoded++;
1239
1240         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1241             p_aout_buf->i_pts < p_owner->i_preroll_end )
1242         {
1243             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1244             continue;
1245         }
1246
1247         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1248         {
1249             msg_Dbg( p_dec, "End of audio preroll" );
1250             if( p_owner->p_aout && p_owner->p_aout_input )
1251                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1252             /* */
1253             p_owner->i_preroll_end = VLC_TS_INVALID;
1254         }
1255
1256         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1257     }
1258
1259     /* Update ugly stat */
1260     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1261     {
1262         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1263
1264         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1265                              i_lost, NULL );
1266         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1267                              i_played, NULL );
1268         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1269                              i_decoded, NULL );
1270
1271         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1272     }
1273 }
1274 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1275 {
1276     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1277     block_t *p_cc;
1278     bool pb_present[4];
1279     bool b_processed = false;
1280     int i;
1281     int i_cc_decoder;
1282
1283     assert( p_dec_cc->pf_get_cc != NULL );
1284
1285     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1286     if( !p_owner->cc.b_supported )
1287         return;
1288
1289     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1290     if( !p_cc )
1291         return;
1292
1293     vlc_mutex_lock( &p_owner->lock );
1294     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1295     {
1296         p_owner->cc.pb_present[i] |= pb_present[i];
1297         if( p_owner->cc.pp_decoder[i] )
1298             i_cc_decoder++;
1299     }
1300
1301     for( i = 0; i < 4; i++ )
1302     {
1303         if( !p_owner->cc.pp_decoder[i] )
1304             continue;
1305
1306         if( i_cc_decoder > 1 )
1307             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1308         else
1309             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1310         i_cc_decoder--;
1311         b_processed = true;
1312     }
1313     vlc_mutex_unlock( &p_owner->lock );
1314
1315     if( !b_processed )
1316         block_Release( p_cc );
1317 }
1318
1319 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1320                               int *pi_played_sum, int *pi_lost_sum )
1321 {
1322     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1323     vout_thread_t  *p_vout = p_owner->p_vout;
1324     bool b_first_buffered;
1325
1326     if( p_picture->date <= VLC_TS_INVALID )
1327     {
1328         msg_Warn( p_vout, "non-dated video buffer received" );
1329         *pi_lost_sum += 1;
1330         vout_DropPicture( p_vout, p_picture );
1331         return;
1332     }
1333
1334     /* */
1335     vlc_mutex_lock( &p_owner->lock );
1336
1337     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1338     {
1339         p_picture->p_next = NULL;
1340
1341         *p_owner->buffer.pp_picture_next = p_picture;
1342         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1343
1344         p_owner->buffer.i_count++;
1345         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1346             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1347         {
1348             p_owner->buffer.b_full = true;
1349             vlc_cond_signal( &p_owner->wait_acknowledge );
1350         }
1351     }
1352     b_first_buffered = p_owner->buffer.p_picture != NULL;
1353
1354     for( ;; b_first_buffered = false )
1355     {
1356         bool b_has_more = false;
1357
1358         bool b_reject;
1359
1360         DecoderWaitUnblock( p_dec, &b_reject );
1361
1362         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1363         {
1364             vlc_mutex_unlock( &p_owner->lock );
1365             return;
1366         }
1367         bool b_buffering_first = p_owner->b_buffering;
1368
1369         /* */
1370         if( p_owner->buffer.p_picture )
1371         {
1372             p_picture = p_owner->buffer.p_picture;
1373
1374             p_owner->buffer.p_picture = p_picture->p_next;
1375             p_owner->buffer.i_count--;
1376
1377             b_has_more = p_owner->buffer.p_picture != NULL;
1378             if( !b_has_more )
1379                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1380         }
1381
1382         /* */
1383         if( b_buffering_first )
1384         {
1385             assert( p_owner->buffer.b_first );
1386             assert( !p_owner->buffer.i_count );
1387             msg_Dbg( p_dec, "Received first picture" );
1388             p_owner->buffer.b_first = false;
1389             p_picture->b_force = true;
1390         }
1391
1392         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1393         int i_rate = INPUT_RATE_DEFAULT;
1394         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1395                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1396
1397         vlc_mutex_unlock( &p_owner->lock );
1398
1399         /* */
1400         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1401             b_reject = true;
1402
1403         if( !b_reject )
1404         {
1405             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1406             {
1407                 /* Be sure to not display old picture after our own */
1408                 vout_Flush( p_vout, p_picture->date );
1409                 p_owner->i_last_rate = i_rate;
1410             }
1411             vout_DisplayPicture( p_vout, p_picture );
1412         }
1413         else
1414         {
1415             if( b_dated )
1416                 msg_Warn( p_vout, "early picture skipped" );
1417             else
1418                 msg_Warn( p_vout, "non-dated video buffer received" );
1419
1420             *pi_lost_sum += 1;
1421             vout_DropPicture( p_vout, p_picture );
1422         }
1423         int i_tmp_display;
1424         int i_tmp_lost;
1425         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1426
1427         *pi_played_sum += i_tmp_display;
1428         *pi_lost_sum += i_tmp_lost;
1429
1430         if( !b_has_more || b_buffering_first )
1431             break;
1432
1433         vlc_mutex_lock( &p_owner->lock );
1434         if( !p_owner->buffer.p_picture )
1435         {
1436             vlc_mutex_unlock( &p_owner->lock );
1437             break;
1438         }
1439     }
1440 }
1441
1442 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1443 {
1444     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1445     input_thread_t *p_input = p_owner->p_input;
1446     picture_t      *p_pic;
1447     int i_lost = 0;
1448     int i_decoded = 0;
1449     int i_displayed = 0;
1450
1451     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1452     {
1453         vout_thread_t  *p_vout = p_owner->p_vout;
1454         if( p_dec->b_die )
1455         {
1456             /* It prevent freezing VLC in case of broken decoder */
1457             vout_DropPicture( p_vout, p_pic );
1458             if( p_block )
1459                 block_Release( p_block );
1460             break;
1461         }
1462
1463         i_decoded++;
1464
1465         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1466         {
1467             vout_DropPicture( p_vout, p_pic );
1468             continue;
1469         }
1470
1471         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1472         {
1473             msg_Dbg( p_dec, "End of video preroll" );
1474             if( p_vout )
1475                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1476             /* */
1477             p_owner->i_preroll_end = VLC_TS_INVALID;
1478         }
1479
1480         if( p_dec->pf_get_cc &&
1481             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1482             DecoderGetCc( p_dec, p_dec );
1483
1484         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1485     }
1486     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1487     {
1488         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1489
1490         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1491                              i_decoded, NULL );
1492         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1493                              i_lost , NULL);
1494
1495         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1496                              i_displayed, NULL);
1497
1498         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1499     }
1500 }
1501
1502 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1503                             bool b_telx )
1504 {
1505     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1506     vout_thread_t *p_vout = p_owner->p_spu_vout;
1507
1508     /* */
1509     if( p_subpic->i_start <= VLC_TS_INVALID )
1510     {
1511         msg_Warn( p_dec, "non-dated spu buffer received" );
1512         subpicture_Delete( p_subpic );
1513         return;
1514     }
1515
1516     /* */
1517     vlc_mutex_lock( &p_owner->lock );
1518
1519     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1520     {
1521         p_subpic->p_next = NULL;
1522
1523         *p_owner->buffer.pp_subpic_next = p_subpic;
1524         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1525
1526         p_owner->buffer.i_count++;
1527         /* XXX it is important to be full after the first one */
1528         if( p_owner->buffer.i_count > 0 )
1529         {
1530             p_owner->buffer.b_full = true;
1531             vlc_cond_signal( &p_owner->wait_acknowledge );
1532         }
1533     }
1534
1535     for( ;; )
1536     {
1537         bool b_has_more = false;
1538         bool b_reject;
1539         DecoderWaitUnblock( p_dec, &b_reject );
1540
1541         if( p_owner->b_buffering )
1542         {
1543             vlc_mutex_unlock( &p_owner->lock );
1544             return;
1545         }
1546
1547         /* */
1548         if( p_owner->buffer.p_subpic )
1549         {
1550             p_subpic = p_owner->buffer.p_subpic;
1551
1552             p_owner->buffer.p_subpic = p_subpic->p_next;
1553             p_owner->buffer.i_count--;
1554
1555             b_has_more = p_owner->buffer.p_subpic != NULL;
1556             if( !b_has_more )
1557                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1558         }
1559
1560         /* */
1561         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1562                       NULL, INT64_MAX, b_telx );
1563
1564         vlc_mutex_unlock( &p_owner->lock );
1565
1566         if( p_subpic->i_start <= VLC_TS_INVALID )
1567             b_reject = true;
1568
1569         DecoderWaitDate( p_dec, &b_reject,
1570                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1571
1572         if( !b_reject )
1573             spu_DisplaySubpicture( vout_GetSpu( p_vout ), p_subpic );
1574         else
1575             subpicture_Delete( p_subpic );
1576
1577         if( !b_has_more )
1578             break;
1579         vlc_mutex_lock( &p_owner->lock );
1580         if( !p_owner->buffer.p_subpic )
1581         {
1582             vlc_mutex_unlock( &p_owner->lock );
1583             break;
1584         }
1585     }
1586 }
1587
1588 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1589                              bool b_telx )
1590 {
1591     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1592
1593     assert( p_owner->p_clock );
1594     assert( !p_sout_block->p_next );
1595
1596     vlc_mutex_lock( &p_owner->lock );
1597
1598     if( p_owner->b_buffering || p_owner->buffer.p_block )
1599     {
1600         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1601
1602         p_owner->buffer.i_count++;
1603         /* XXX it is important to be full after the first one */
1604         if( p_owner->buffer.i_count > 0 )
1605         {
1606             p_owner->buffer.b_full = true;
1607             vlc_cond_signal( &p_owner->wait_acknowledge );
1608         }
1609     }
1610
1611     for( ;; )
1612     {
1613         bool b_has_more = false;
1614         bool b_reject;
1615         DecoderWaitUnblock( p_dec, &b_reject );
1616
1617         if( p_owner->b_buffering )
1618         {
1619             vlc_mutex_unlock( &p_owner->lock );
1620             return;
1621         }
1622
1623         /* */
1624         if( p_owner->buffer.p_block )
1625         {
1626             p_sout_block = p_owner->buffer.p_block;
1627
1628             p_owner->buffer.p_block = p_sout_block->p_next;
1629             p_owner->buffer.i_count--;
1630
1631             b_has_more = p_owner->buffer.p_block != NULL;
1632             if( !b_has_more )
1633                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1634         }
1635         p_sout_block->p_next = NULL;
1636
1637         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1638                       &p_sout_block->i_length,
1639                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1640
1641         vlc_mutex_unlock( &p_owner->lock );
1642
1643         if( !b_reject )
1644             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1645         else
1646             block_Release( p_sout_block );
1647
1648         if( !b_has_more )
1649             break;
1650         vlc_mutex_lock( &p_owner->lock );
1651         if( !p_owner->buffer.p_block )
1652         {
1653             vlc_mutex_unlock( &p_owner->lock );
1654             break;
1655         }
1656     }
1657 }
1658
1659 /* */
1660 static void DecoderFlushBuffering( decoder_t *p_dec )
1661 {
1662     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1663
1664     vlc_assert_locked( &p_owner->lock );
1665
1666     while( p_owner->buffer.p_picture )
1667     {
1668         picture_t *p_picture = p_owner->buffer.p_picture;
1669
1670         p_owner->buffer.p_picture = p_picture->p_next;
1671         p_owner->buffer.i_count--;
1672
1673         if( p_owner->p_vout )
1674             vout_DropPicture( p_owner->p_vout, p_picture );
1675
1676         if( !p_owner->buffer.p_picture )
1677             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1678     }
1679     while( p_owner->buffer.p_audio )
1680     {
1681         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1682
1683         p_owner->buffer.p_audio = p_audio->p_next;
1684         p_owner->buffer.i_count--;
1685
1686         aout_BufferFree( p_audio );
1687
1688         if( !p_owner->buffer.p_audio )
1689             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1690     }
1691     while( p_owner->buffer.p_subpic )
1692     {
1693         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1694
1695         p_owner->buffer.p_subpic = p_subpic->p_next;
1696         p_owner->buffer.i_count--;
1697
1698         subpicture_Delete( p_subpic );
1699
1700         if( !p_owner->buffer.p_subpic )
1701             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1702     }
1703     if( p_owner->buffer.p_block )
1704     {
1705         block_ChainRelease( p_owner->buffer.p_block );
1706
1707         p_owner->buffer.i_count = 0;
1708         p_owner->buffer.p_block = NULL;
1709         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1710     }
1711 }
1712
1713 /* This function process a block for sout
1714  */
1715 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1716 {
1717     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1718     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1719     block_t *p_sout_block;
1720
1721     while( ( p_sout_block =
1722                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1723     {
1724         if( !p_owner->p_sout_input )
1725         {
1726             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1727
1728             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1729             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1730             if( p_dec->fmt_in.psz_language )
1731             {
1732                 free( p_owner->sout.psz_language );
1733                 p_owner->sout.psz_language =
1734                     strdup( p_dec->fmt_in.psz_language );
1735             }
1736
1737             p_owner->p_sout_input =
1738                 sout_InputNew( p_owner->p_sout,
1739                                &p_owner->sout );
1740
1741             if( p_owner->p_sout_input == NULL )
1742             {
1743                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1744                          (char *)&p_owner->sout.i_codec );
1745                 p_dec->b_error = true;
1746
1747                 while( p_sout_block )
1748                 {
1749                     block_t *p_next = p_sout_block->p_next;
1750                     block_Release( p_sout_block );
1751                     p_sout_block = p_next;
1752                 }
1753                 break;
1754             }
1755         }
1756
1757         while( p_sout_block )
1758         {
1759             block_t *p_next = p_sout_block->p_next;
1760
1761             p_sout_block->p_next = NULL;
1762
1763             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1764
1765             p_sout_block = p_next;
1766         }
1767     }
1768 }
1769
1770 /* This function process a video block
1771  */
1772 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1773 {
1774     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1775
1776     if( p_owner->p_packetizer )
1777     {
1778         block_t *p_packetized_block;
1779         decoder_t *p_packetizer = p_owner->p_packetizer;
1780
1781         while( (p_packetized_block =
1782                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1783         {
1784             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1785             {
1786                 es_format_Clean( &p_dec->fmt_in );
1787                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1788             }
1789             if( p_packetizer->pf_get_cc )
1790                 DecoderGetCc( p_dec, p_packetizer );
1791
1792             while( p_packetized_block )
1793             {
1794                 block_t *p_next = p_packetized_block->p_next;
1795                 p_packetized_block->p_next = NULL;
1796
1797                 DecoderDecodeVideo( p_dec, p_packetized_block );
1798
1799                 p_packetized_block = p_next;
1800             }
1801         }
1802         /* The packetizer does not output a block that tell the decoder to flush
1803          * do it ourself */
1804         if( b_flush )
1805         {
1806             block_t *p_null = DecoderBlockFlushNew();
1807             if( p_null )
1808                 DecoderDecodeVideo( p_dec, p_null );
1809         }
1810     }
1811     else if( p_block )
1812     {
1813         DecoderDecodeVideo( p_dec, p_block );
1814     }
1815
1816     if( b_flush && p_owner->p_vout )
1817         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1818 }
1819
1820 /* This function process a audio block
1821  */
1822 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1823 {
1824     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1825
1826     if( p_owner->p_packetizer )
1827     {
1828         block_t *p_packetized_block;
1829         decoder_t *p_packetizer = p_owner->p_packetizer;
1830
1831         while( (p_packetized_block =
1832                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1833         {
1834             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1835             {
1836                 es_format_Clean( &p_dec->fmt_in );
1837                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1838             }
1839
1840             while( p_packetized_block )
1841             {
1842                 block_t *p_next = p_packetized_block->p_next;
1843                 p_packetized_block->p_next = NULL;
1844
1845                 DecoderDecodeAudio( p_dec, p_packetized_block );
1846
1847                 p_packetized_block = p_next;
1848             }
1849         }
1850         /* The packetizer does not output a block that tell the decoder to flush
1851          * do it ourself */
1852         if( b_flush )
1853         {
1854             block_t *p_null = DecoderBlockFlushNew();
1855             if( p_null )
1856                 DecoderDecodeAudio( p_dec, p_null );
1857         }
1858     }
1859     else if( p_block )
1860     {
1861         DecoderDecodeAudio( p_dec, p_block );
1862     }
1863
1864     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1865         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1866 }
1867
1868 /* This function process a subtitle block
1869  */
1870 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1871 {
1872     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1873     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1874
1875     input_thread_t *p_input = p_owner->p_input;
1876     vout_thread_t *p_vout;
1877     subpicture_t *p_spu;
1878
1879     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1880     {
1881         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1882         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1883         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1884
1885         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1886         if( p_vout && p_owner->p_spu_vout == p_vout )
1887         {
1888             /* Preroll does not work very well with subtitle */
1889             if( p_spu->i_start > VLC_TS_INVALID &&
1890                 p_spu->i_start < p_owner->i_preroll_end &&
1891                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1892             {
1893                 subpicture_Delete( p_spu );
1894             }
1895             else
1896             {
1897                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1898             }
1899         }
1900         else
1901         {
1902             subpicture_Delete( p_spu );
1903         }
1904         if( p_vout )
1905             vlc_object_release( p_vout );
1906     }
1907
1908     if( b_flush && p_owner->p_spu_vout )
1909     {
1910         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1911
1912         if( p_vout && p_owner->p_spu_vout == p_vout )
1913             spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR,
1914                          p_owner->i_spu_channel );
1915
1916         if( p_vout )
1917             vlc_object_release( p_vout );
1918     }
1919 }
1920
1921 /* */
1922 static void DecoderProcessOnFlush( decoder_t *p_dec )
1923 {
1924     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1925
1926     vlc_mutex_lock( &p_owner->lock );
1927     DecoderFlushBuffering( p_dec );
1928
1929     if( p_owner->b_flushing )
1930     {
1931         p_owner->b_flushing = false;
1932         vlc_cond_signal( &p_owner->wait_acknowledge );
1933     }
1934     vlc_mutex_unlock( &p_owner->lock );
1935 }
1936
1937 /**
1938  * Decode a block
1939  *
1940  * \param p_dec the decoder object
1941  * \param p_block the block to decode
1942  * \return VLC_SUCCESS or an error code
1943  */
1944 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1945 {
1946     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1947     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1948
1949     if( p_block && p_block->i_buffer <= 0 )
1950     {
1951         assert( !b_flush_request );
1952         block_Release( p_block );
1953         return;
1954     }
1955
1956 #ifdef ENABLE_SOUT
1957     if( p_owner->b_packetizer )
1958     {
1959         if( p_block )
1960             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1961
1962         DecoderProcessSout( p_dec, p_block );
1963     }
1964     else
1965 #endif
1966     {
1967         bool b_flush = false;
1968
1969         if( p_block )
1970         {
1971             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1972             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1973
1974             b_flush = !b_flushing && b_flush_request;
1975
1976             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1977         }
1978
1979         if( p_dec->fmt_out.i_cat == AUDIO_ES )
1980         {
1981             DecoderProcessAudio( p_dec, p_block, b_flush );
1982         }
1983         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1984         {
1985             DecoderProcessVideo( p_dec, p_block, b_flush );
1986         }
1987         else if( p_dec->fmt_out.i_cat == SPU_ES )
1988         {
1989             DecoderProcessSpu( p_dec, p_block, b_flush );
1990         }
1991         else
1992         {
1993             msg_Err( p_dec, "unknown ES format" );
1994             p_dec->b_error = true;
1995         }
1996     }
1997
1998     /* */
1999     if( b_flush_request )
2000         DecoderProcessOnFlush( p_dec );
2001 }
2002
2003 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2004 {
2005     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2006
2007     /* */
2008     if( p_block )
2009         block_Release( p_block );
2010
2011     if( b_flush_request )
2012         DecoderProcessOnFlush( p_dec );
2013 }
2014
2015
2016 /**
2017  * Destroys a decoder object
2018  *
2019  * \param p_dec the decoder object
2020  * \return nothing
2021  */
2022 static void DeleteDecoder( decoder_t * p_dec )
2023 {
2024     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2025
2026     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2027              (char*)&p_dec->fmt_in.i_codec,
2028              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2029
2030     /* Free all packets still in the decoder fifo. */
2031     block_FifoEmpty( p_owner->p_fifo );
2032     block_FifoRelease( p_owner->p_fifo );
2033
2034     /* */
2035     vlc_mutex_lock( &p_owner->lock );
2036     DecoderFlushBuffering( p_dec );
2037     vlc_mutex_unlock( &p_owner->lock );
2038
2039     /* Cleanup */
2040     if( p_owner->p_aout_input )
2041         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2042     if( p_owner->p_aout )
2043     {
2044         input_resource_RequestAout( p_owner->p_input->p->p_resource,
2045                                      p_owner->p_aout );
2046         input_SendEventAout( p_owner->p_input );
2047         p_owner->p_aout = NULL;
2048     }
2049     if( p_owner->p_vout )
2050     {
2051         /* Hack to make sure all the the pictures are freed by the decoder
2052          * and that the vout is not paused anymore */
2053         vout_FixLeaks( p_owner->p_vout, true );
2054         if( p_owner->b_paused )
2055             vout_ChangePause( p_owner->p_vout, false, mdate() );
2056
2057         /* */
2058         input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, true );
2059         input_SendEventVout( p_owner->p_input );
2060     }
2061
2062 #ifdef ENABLE_SOUT
2063     if( p_owner->p_sout_input )
2064     {
2065         sout_InputDelete( p_owner->p_sout_input );
2066         es_format_Clean( &p_owner->sout );
2067     }
2068 #endif
2069
2070     if( p_dec->fmt_out.i_cat == SPU_ES )
2071     {
2072         vout_thread_t *p_vout;
2073
2074         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2075         if( p_vout )
2076         {
2077             if( p_owner->p_spu_vout == p_vout )
2078                 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2079             vlc_object_release( p_vout );
2080         }
2081     }
2082
2083     es_format_Clean( &p_dec->fmt_in );
2084     es_format_Clean( &p_dec->fmt_out );
2085     if( p_dec->p_description )
2086         vlc_meta_Delete( p_dec->p_description );
2087     es_format_Clean( &p_owner->fmt_description );
2088     if( p_owner->p_description )
2089         vlc_meta_Delete( p_owner->p_description );
2090
2091     if( p_owner->p_packetizer )
2092     {
2093         module_unneed( p_owner->p_packetizer,
2094                        p_owner->p_packetizer->p_module );
2095         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2096         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2097         if( p_owner->p_packetizer->p_description )
2098             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2099         vlc_object_detach( p_owner->p_packetizer );
2100         vlc_object_release( p_owner->p_packetizer );
2101     }
2102
2103     vlc_cond_destroy( &p_owner->wait_acknowledge );
2104     vlc_cond_destroy( &p_owner->wait_request );
2105     vlc_mutex_destroy( &p_owner->lock );
2106
2107     vlc_object_detach( p_dec );
2108     vlc_object_release( p_dec );
2109
2110     free( p_owner );
2111 }
2112
2113 /*****************************************************************************
2114  * Buffers allocation callbacks for the decoders
2115  *****************************************************************************/
2116 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2117 {
2118     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2119
2120     vlc_assert_locked( &p_owner->lock );
2121
2122     p_owner->b_fmt_description = true;
2123
2124     /* Copy es_format */
2125     es_format_Clean( &p_owner->fmt_description );
2126     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2127
2128     /* Move p_description */
2129     if( p_owner->p_description && p_dec->p_description )
2130         vlc_meta_Delete( p_owner->p_description );
2131     p_owner->p_description = p_dec->p_description;
2132     p_dec->p_description = NULL;
2133 }
2134 static vout_thread_t *aout_request_vout( void *p_private,
2135                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2136 {
2137     decoder_t *p_dec = p_private;
2138     input_thread_t *p_input = p_dec->p_owner->p_input;
2139
2140     p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, b_recyle );
2141     input_SendEventVout( p_input );
2142
2143     return p_vout;
2144 }
2145
2146 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2147 {
2148     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2149     aout_buffer_t *p_buffer;
2150
2151     if( p_owner->p_aout_input != NULL &&
2152         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2153           p_dec->fmt_out.audio.i_original_channels !=
2154               p_owner->audio.i_original_channels ||
2155           p_dec->fmt_out.audio.i_bytes_per_frame !=
2156               p_owner->audio.i_bytes_per_frame ) )
2157     {
2158         aout_input_t *p_aout_input = p_owner->p_aout_input;
2159
2160         /* Parameters changed, restart the aout */
2161         vlc_mutex_lock( &p_owner->lock );
2162
2163         DecoderFlushBuffering( p_dec );
2164
2165         p_owner->p_aout_input = NULL;
2166         aout_DecDelete( p_owner->p_aout, p_aout_input );
2167
2168         vlc_mutex_unlock( &p_owner->lock );
2169     }
2170
2171     if( p_owner->p_aout_input == NULL )
2172     {
2173         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2174         audio_sample_format_t format;
2175         aout_input_t *p_aout_input;
2176         aout_instance_t *p_aout;
2177         aout_request_vout_t request_vout;
2178
2179         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2180         p_owner->audio = p_dec->fmt_out.audio;
2181
2182         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2183         if( i_force_dolby &&
2184             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2185                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2186         {
2187             if( i_force_dolby == 1 )
2188             {
2189                 format.i_original_channels = format.i_original_channels |
2190                                              AOUT_CHAN_DOLBYSTEREO;
2191             }
2192             else /* i_force_dolby == 2 */
2193             {
2194                 format.i_original_channels = format.i_original_channels &
2195                                              ~AOUT_CHAN_DOLBYSTEREO;
2196             }
2197         }
2198
2199         request_vout.pf_request_vout = aout_request_vout;
2200         request_vout.p_private = p_dec;
2201
2202         p_aout = p_owner->p_aout;
2203         if( !p_aout )
2204             p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2205         p_aout_input = aout_DecNew( p_dec, &p_aout,
2206                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2207
2208         vlc_mutex_lock( &p_owner->lock );
2209
2210         p_owner->p_aout = p_aout;
2211         p_owner->p_aout_input = p_aout_input;
2212         DecoderUpdateFormatLocked( p_dec );
2213
2214         vlc_mutex_unlock( &p_owner->lock );
2215
2216         input_SendEventAout( p_owner->p_input );
2217
2218         if( p_owner->p_aout_input == NULL )
2219         {
2220             msg_Err( p_dec, "failed to create audio output" );
2221             p_dec->b_error = true;
2222             return NULL;
2223         }
2224         p_dec->fmt_out.audio.i_bytes_per_frame =
2225             p_owner->audio.i_bytes_per_frame;
2226     }
2227
2228     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2229
2230     return p_buffer;
2231 }
2232
2233 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2234 {
2235     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2236
2237     aout_DecDeleteBuffer( p_owner->p_aout,
2238                           p_owner->p_aout_input, p_buffer );
2239 }
2240
2241
2242 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2243
2244 static picture_t *vout_new_buffer( decoder_t *p_dec )
2245 {
2246     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2247
2248     if( p_owner->p_vout == NULL ||
2249         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2250         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2251         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2252         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2253         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2254     {
2255         vout_thread_t *p_vout;
2256
2257         if( !p_dec->fmt_out.video.i_width ||
2258             !p_dec->fmt_out.video.i_height )
2259         {
2260             /* Can't create a new vout without display size */
2261             return NULL;
2262         }
2263
2264         if( !p_dec->fmt_out.video.i_visible_width ||
2265             !p_dec->fmt_out.video.i_visible_height )
2266         {
2267             if( p_dec->fmt_in.video.i_visible_width &&
2268                 p_dec->fmt_in.video.i_visible_height )
2269             {
2270                 p_dec->fmt_out.video.i_visible_width =
2271                     p_dec->fmt_in.video.i_visible_width;
2272                 p_dec->fmt_out.video.i_visible_height =
2273                     p_dec->fmt_in.video.i_visible_height;
2274             }
2275             else
2276             {
2277                 p_dec->fmt_out.video.i_visible_width =
2278                     p_dec->fmt_out.video.i_width;
2279                 p_dec->fmt_out.video.i_visible_height =
2280                     p_dec->fmt_out.video.i_height;
2281             }
2282         }
2283
2284         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2285             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2286         {
2287             p_dec->fmt_out.video.i_visible_height = 1080;
2288             if( !(p_dec->fmt_out.video.i_sar_num % 136))
2289             {
2290                 p_dec->fmt_out.video.i_sar_num *= 135;
2291                 p_dec->fmt_out.video.i_sar_den *= 136;
2292             }
2293             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2294         }
2295
2296         if( !p_dec->fmt_out.video.i_sar_num ||
2297             !p_dec->fmt_out.video.i_sar_den )
2298         {
2299             p_dec->fmt_out.video.i_sar_num = 1;
2300             p_dec->fmt_out.video.i_sar_den = 1;
2301         }
2302
2303         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2304                      &p_dec->fmt_out.video.i_sar_den,
2305                      p_dec->fmt_out.video.i_sar_num,
2306                      p_dec->fmt_out.video.i_sar_den, 50000 );
2307
2308         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2309         p_owner->video = p_dec->fmt_out.video;
2310
2311         vlc_mutex_lock( &p_owner->lock );
2312
2313         DecoderFlushBuffering( p_dec );
2314
2315         p_vout = p_owner->p_vout;
2316         p_owner->p_vout = NULL;
2317         vlc_mutex_unlock( &p_owner->lock );
2318
2319         p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2320                                               p_vout, &p_dec->fmt_out.video, true );
2321
2322         vlc_mutex_lock( &p_owner->lock );
2323         p_owner->p_vout = p_vout;
2324
2325         DecoderUpdateFormatLocked( p_dec );
2326
2327         vlc_mutex_unlock( &p_owner->lock );
2328
2329         input_SendEventVout( p_owner->p_input );
2330         if( p_vout == NULL )
2331         {
2332             msg_Err( p_dec, "failed to create video output" );
2333             p_dec->b_error = true;
2334             return NULL;
2335         }
2336
2337         if( p_owner->video.i_rmask )
2338             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2339         if( p_owner->video.i_gmask )
2340             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2341         if( p_owner->video.i_bmask )
2342             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2343     }
2344
2345     /* Get a new picture
2346      */
2347     for( ;; )
2348     {
2349         picture_t *p_picture;
2350
2351         if( p_dec->b_die || p_dec->b_error )
2352             return NULL;
2353
2354         /* The video filter chain required that there is always 1 free buffer
2355          * that it will use as temporary one. It will release the temporary
2356          * buffer once its work is done, so this check is safe even if we don't
2357          * lock around both count() and create().
2358          */
2359         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2360         {
2361             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2362             if( p_picture )
2363                 return p_picture;
2364         }
2365
2366         if( DecoderIsFlushing( p_dec ) )
2367             return NULL;
2368
2369         /* */
2370         DecoderSignalBuffering( p_dec, true );
2371
2372         /* Check the decoder doesn't leak pictures */
2373         vout_FixLeaks( p_owner->p_vout, false );
2374
2375         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2376         msleep( VOUT_OUTMEM_SLEEP );
2377     }
2378 }
2379
2380 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2381 {
2382     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2383 }
2384
2385 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2386 {
2387     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2388 }
2389
2390 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2391 {
2392     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2393 }
2394
2395 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2396 {
2397     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2398     vout_thread_t *p_vout = NULL;
2399     subpicture_t *p_subpic;
2400     int i_attempts = 30;
2401
2402     while( i_attempts-- )
2403     {
2404         if( p_dec->b_die || p_dec->b_error )
2405             break;
2406
2407         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2408         if( p_vout )
2409             break;
2410
2411         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2412     }
2413
2414     if( !p_vout )
2415     {
2416         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2417         return NULL;
2418     }
2419
2420     if( p_owner->p_spu_vout != p_vout )
2421     {
2422         vlc_mutex_lock( &p_owner->lock );
2423
2424         DecoderFlushBuffering( p_dec );
2425
2426         vlc_mutex_unlock( &p_owner->lock );
2427
2428         spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_REGISTER,
2429                      &p_owner->i_spu_channel );
2430         p_owner->i_spu_order = 0;
2431         p_owner->p_spu_vout = p_vout;
2432     }
2433
2434     p_subpic = subpicture_New();
2435     if( p_subpic )
2436     {
2437         p_subpic->i_channel = p_owner->i_spu_channel;
2438         p_subpic->i_order = p_owner->i_spu_order++;
2439         p_subpic->b_subtitle = true;
2440     }
2441
2442     vlc_object_release( p_vout );
2443
2444     return p_subpic;
2445 }
2446
2447 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2448 {
2449     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2450     vout_thread_t *p_vout = NULL;
2451
2452     p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2453     if( !p_vout || p_owner->p_spu_vout != p_vout )
2454     {
2455         if( p_vout )
2456             vlc_object_release( p_vout );
2457         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2458         return;
2459     }
2460
2461     subpicture_Delete( p_subpic );
2462
2463     vlc_object_release( p_vout );
2464 }
2465