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

   1 /*****************************************************************************
   2  * decoder.c: Functions for the management of decoders
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Laurent Aimar <fenrir@via.ecp.fr>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32 #include <assert.h>
  33
  34 #include <vlc_common.h>
  35
  36 #include <vlc_block.h>
  37 #include <vlc_vout.h>
  38 #include <vlc_aout.h>
  39 #include <vlc_sout.h>
  40 #include <vlc_codec.h>
  41 #include <vlc_spu.h>
  42 #include <vlc_meta.h>
  43 #include <vlc_dialog.h>
  44 #include <vlc_modules.h>
  45
  46 #include "audio_output/aout_internal.h"
  47 #include "stream_output/stream_output.h"
  48 #include "input_internal.h"
  49 #include "clock.h"
  50 #include "decoder.h"
  51 #include "event.h"
  52 #include "resource.h"
  53
  54 #include "../video_output/vout_control.h"
  55
  56 static decoder_t *CreateDecoder( vlc_object_t *, input_thread_t *,
  57                                  es_format_t *, bool, input_resource_t *,
  58                                  sout_instance_t *p_sout );
  59 static void       DeleteDecoder( decoder_t * );
  60
  61 static void      *DecoderThread( void * );
  62 static void       DecoderProcess( decoder_t *, block_t * );
  63 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
  64 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
  65 static void       DecoderFlush( decoder_t * );
  66 static void       DecoderSignalBuffering( decoder_t *, bool );
  67 static void       DecoderFlushBuffering( decoder_t * );
  68
  69 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
  70
  71 /* Buffers allocation callbacks for the decoders */
  72 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  73 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  74
  75 static picture_t *vout_new_buffer( decoder_t * );
  76 static void vout_del_buffer( decoder_t *, picture_t * );
  77 static void vout_link_picture( decoder_t *, picture_t * );
  78 static void vout_unlink_picture( decoder_t *, picture_t * );
  79
  80 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
  81 static void spu_del_buffer( decoder_t *, subpicture_t * );
  82
  83 struct decoder_owner_sys_t
  84 {
  85     int64_t         i_preroll_end;
  86
  87     input_thread_t  *p_input;
  88     input_resource_t*p_resource;
  89     input_clock_t   *p_clock;
  90     int             i_last_rate;
  91
  92     vout_thread_t   *p_spu_vout;
  93     int              i_spu_channel;
  94     int64_t          i_spu_order;
  95
  96     sout_instance_t         *p_sout;
  97     sout_packetizer_input_t *p_sout_input;
  98
  99     vlc_thread_t     thread;
 100
 101     /* Some decoders require already packetized data (ie. not truncated) */
 102     decoder_t *p_packetizer;
 103     bool b_packetizer;
 104
 105     /* Current format in use by the output */
 106     video_format_t video;
 107     audio_format_t audio;
 108     es_format_t    sout;
 109
 110     /* */
 111     bool           b_fmt_description;
 112     es_format_t    fmt_description;
 113     vlc_meta_t     *p_description;
 114
 115     /* fifo */
 116     block_fifo_t *p_fifo;
 117
 118     /* Lock for communication with decoder thread */
 119     vlc_mutex_t lock;
 120     vlc_cond_t  wait_request;
 121     vlc_cond_t  wait_acknowledge;
 122
 123     /* -- These variables need locking on write(only) -- */
 124     aout_instance_t *p_aout;
 125     aout_input_t    *p_aout_input;
 126
 127     vout_thread_t   *p_vout;
 128
 129     /* -- Theses variables need locking on read *and* write -- */
 130     bool b_exit;
 131
 132     /* Pause */
 133     bool b_paused;
 134     struct
 135     {
 136         mtime_t i_date;
 137         int     i_ignore;
 138     } pause;
 139
 140     /* Buffering */
 141     bool b_buffering;
 142     struct
 143     {
 144         bool b_first;
 145         bool b_full;
 146         int  i_count;
 147
 148         picture_t     *p_picture;
 149         picture_t     **pp_picture_next;
 150
 151         subpicture_t  *p_subpic;
 152         subpicture_t  **pp_subpic_next;
 153
 154         aout_buffer_t *p_audio;
 155         aout_buffer_t **pp_audio_next;
 156
 157         block_t       *p_block;
 158         block_t       **pp_block_next;
 159     } buffer;
 160
 161     /* Flushing */
 162     bool b_flushing;
 163
 164     /* CC */
 165     struct
 166     {
 167         bool b_supported;
 168         bool pb_present[4];
 169         decoder_t *pp_decoder[4];
 170     } cc;
 171
 172     /* Delay */
 173     mtime_t i_ts_delay;
 174 };
 175
 176 #define DECODER_MAX_BUFFERING_COUNT (4)
 177 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
 178 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
 179
 180 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
 181  * a bogus PTS and won't be displayed */
 182 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
 183
 184 /* */
 185 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
 186
 187
 188 /*****************************************************************************
 189  * Public functions
 190  *****************************************************************************/
 191 picture_t *decoder_NewPicture( decoder_t *p_decoder )
 192 {
 193     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
 194     if( !p_picture )
 195         msg_Warn( p_decoder, "can't get output picture" );
 196     return p_picture;
 197 }
 198 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
 199 {
 200     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
 201 }
 202 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 203 {
 204     p_decoder->pf_picture_link( p_decoder, p_picture );
 205 }
 206 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
 207 {
 208     p_decoder->pf_picture_unlink( p_decoder, p_picture );
 209 }
 210
 211 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
 212 {
 213     if( !p_decoder->pf_aout_buffer_new )
 214         return NULL;
 215     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
 216 }
 217 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
 218 {
 219     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
 220 }
 221
 222 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
 223                                      const subpicture_updater_t *p_dyn )
 224 {
 225     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
 226     if( !p_subpicture )
 227         msg_Warn( p_decoder, "can't get output subpicture" );
 228     return p_subpicture;
 229 }
 230
 231 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
 232 {
 233     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
 234 }
 235
 236 /* decoder_GetInputAttachments:
 237  */
 238 int decoder_GetInputAttachments( decoder_t *p_dec,
 239                                  input_attachment_t ***ppp_attachment,
 240                                  int *pi_attachment )
 241 {
 242     if( !p_dec->pf_get_attachments )
 243         return VLC_EGENERIC;
 244
 245     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
 246 }
 247 /* decoder_GetDisplayDate:
 248  */
 249 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 250 {
 251     if( !p_dec->pf_get_display_date )
 252         return VLC_TS_INVALID;
 253
 254     return p_dec->pf_get_display_date( p_dec, i_ts );
 255 }
 256 /* decoder_GetDisplayRate:
 257  */
 258 int decoder_GetDisplayRate( decoder_t *p_dec )
 259 {
 260     if( !p_dec->pf_get_display_rate )
 261         return INPUT_RATE_DEFAULT;
 262
 263     return p_dec->pf_get_display_rate( p_dec );
 264 }
 265
 266 /* TODO: pass p_sout through p_resource? -- Courmisch */
 267 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
 268                                es_format_t *fmt, input_clock_t *p_clock,
 269                                input_resource_t *p_resource,
 270                                sout_instance_t *p_sout  )
 271 {
 272     decoder_t *p_dec = NULL;
 273     const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
 274     int i_priority;
 275
 276     /* Create the decoder configuration structure */
 277     p_dec = CreateDecoder( p_parent, p_input, fmt,
 278                            p_sout != NULL, p_resource, p_sout );
 279     if( p_dec == NULL )
 280     {
 281         msg_Err( p_parent, "could not create %s", psz_type );
 282         dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
 283                       _("VLC could not open the %s module."),
 284                       vlc_gettext( psz_type ) );
 285         return NULL;
 286     }
 287
 288     if( !p_dec->p_module )
 289     {
 290         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 291
 292         DeleteDecoder( p_dec );
 293         return NULL;
 294     }
 295
 296     p_dec->p_owner->p_clock = p_clock;
 297     assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
 298
 299     if( p_dec->fmt_out.i_cat == AUDIO_ES )
 300         i_priority = VLC_THREAD_PRIORITY_AUDIO;
 301     else
 302         i_priority = VLC_THREAD_PRIORITY_VIDEO;
 303
 304     /* Spawn the decoder thread */
 305     if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
 306     {
 307         msg_Err( p_dec, "cannot spawn decoder thread" );
 308         module_unneed( p_dec, p_dec->p_module );
 309         DeleteDecoder( p_dec );
 310         return NULL;
 311     }
 312
 313     return p_dec;
 314 }
 315
 316
 317 /**
 318  * Spawns a new decoder thread from the input thread
 319  *
 320  * \param p_input the input thread
 321  * \param p_es the es descriptor
 322  * \return the spawned decoder object
 323  */
 324 decoder_t *input_DecoderNew( input_thread_t *p_input,
 325                              es_format_t *fmt, input_clock_t *p_clock,
 326                              sout_instance_t *p_sout  )
 327 {
 328     return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
 329                         p_input->p->p_resource, p_sout );
 330 }
 331
 332 /**
 333  * Spawn a decoder thread outside of the input thread.
 334  */
 335 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, es_format_t *fmt,
 336                                 input_resource_t *p_resource )
 337 {
 338     return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
 339 }
 340
 341
 342 /**
 343  * Kills a decoder thread and waits until it's finished
 344  *
 345  * \param p_input the input thread
 346  * \param p_es the es descriptor
 347  * \return nothing
 348  */
 349 void input_DecoderDelete( decoder_t *p_dec )
 350 {
 351     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 352
 353     vlc_cancel( p_owner->thread );
 354
 355     /* Make sure we aren't paused/buffering/waiting/decoding anymore */
 356     vlc_mutex_lock( &p_owner->lock );
 357     const bool b_was_paused = p_owner->b_paused;
 358     p_owner->b_paused = false;
 359     p_owner->b_buffering = false;
 360     p_owner->b_flushing = true;
 361     p_owner->b_exit = true;
 362     vlc_cond_signal( &p_owner->wait_request );
 363     vlc_mutex_unlock( &p_owner->lock );
 364
 365     vlc_join( p_owner->thread, NULL );
 366     p_owner->b_paused = b_was_paused;
 367
 368     module_unneed( p_dec, p_dec->p_module );
 369
 370     /* */
 371     if( p_dec->p_owner->cc.b_supported )
 372     {
 373         int i;
 374         for( i = 0; i < 4; i++ )
 375             input_DecoderSetCcState( p_dec, false, i );
 376     }
 377
 378     /* Delete decoder */
 379     DeleteDecoder( p_dec );
 380 }
 381
 382 /**
 383  * Put a block_t in the decoder's fifo.
 384  * Thread-safe w.r.t. the decoder. May be a cancellation point.
 385  *
 386  * \param p_dec the decoder object
 387  * \param p_block the data block
 388  */
 389 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
 390 {
 391     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 392
 393     if( b_do_pace )
 394     {
 395         /* The fifo is not consummed when buffering and so will
 396          * deadlock vlc.
 397          * There is no need to lock as b_buffering is never modify
 398          * inside decoder thread. */
 399         if( !p_owner->b_buffering )
 400             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
 401     }
 402 #ifdef __arm__
 403     else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
 404 #else
 405     else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
 406 #endif
 407     {
 408         /* FIXME: ideally we would check the time amount of data
 409          * in the FIFO instead of its size. */
 410         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 411                   "consumed quickly enough), resetting fifo!" );
 412         block_FifoEmpty( p_owner->p_fifo );
 413     }
 414
 415     block_FifoPut( p_owner->p_fifo, p_block );
 416 }
 417
 418 bool input_DecoderIsEmpty( decoder_t * p_dec )
 419 {
 420     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 421     assert( !p_owner->b_buffering );
 422
 423     bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
 424     if( b_empty )
 425     {
 426         vlc_mutex_lock( &p_owner->lock );
 427         /* TODO subtitles support */
 428         if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
 429             b_empty = vout_IsEmpty( p_owner->p_vout );
 430         else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout )
 431             b_empty = aout_InputIsEmpty( p_owner->p_aout, p_owner->p_aout_input );
 432         vlc_mutex_unlock( &p_owner->lock );
 433     }
 434     return b_empty;
 435 }
 436
 437 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
 438 {
 439     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 440     int i;
 441
 442     vlc_mutex_lock( &p_owner->lock );
 443     for( i = 0; i < 4; i++ )
 444         pb_present[i] =  p_owner->cc.pb_present[i];
 445     vlc_mutex_unlock( &p_owner->lock );
 446 }
 447 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
 448 {
 449     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 450
 451     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
 452
 453     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 454         return VLC_EGENERIC;
 455
 456     if( b_decode )
 457     {
 458         static const vlc_fourcc_t fcc[4] = {
 459             VLC_FOURCC('c', 'c', '1', ' '),
 460             VLC_FOURCC('c', 'c', '2', ' '),
 461             VLC_FOURCC('c', 'c', '3', ' '),
 462             VLC_FOURCC('c', 'c', '4', ' '),
 463         };
 464         decoder_t *p_cc;
 465         es_format_t fmt;
 466
 467         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
 468         p_cc = CreateDecoder( VLC_OBJECT(p_dec), p_owner->p_input, &fmt,
 469                               false, p_owner->p_resource, p_owner->p_sout );
 470         if( !p_cc )
 471         {
 472             msg_Err( p_dec, "could not create decoder" );
 473             dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
 474                           _("VLC could not open the decoder module.") );
 475             return VLC_EGENERIC;
 476         }
 477         else if( !p_cc->p_module )
 478         {
 479             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
 480             DeleteDecoder( p_cc );
 481             return VLC_EGENERIC;
 482         }
 483         p_cc->p_owner->p_clock = p_owner->p_clock;
 484
 485         vlc_mutex_lock( &p_owner->lock );
 486         p_owner->cc.pp_decoder[i_channel] = p_cc;
 487         vlc_mutex_unlock( &p_owner->lock );
 488     }
 489     else
 490     {
 491         decoder_t *p_cc;
 492
 493         vlc_mutex_lock( &p_owner->lock );
 494         p_cc = p_owner->cc.pp_decoder[i_channel];
 495         p_owner->cc.pp_decoder[i_channel] = NULL;
 496         vlc_mutex_unlock( &p_owner->lock );
 497
 498         if( p_cc )
 499         {
 500             module_unneed( p_cc, p_cc->p_module );
 501             DeleteDecoder( p_cc );
 502         }
 503     }
 504     return VLC_SUCCESS;
 505 }
 506 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
 507 {
 508     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 509
 510     *pb_decode = false;
 511     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
 512         return VLC_EGENERIC;
 513
 514     vlc_mutex_lock( &p_owner->lock );
 515     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
 516     vlc_mutex_unlock( &p_owner->lock );
 517     return VLC_EGENERIC;
 518 }
 519
 520 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
 521 {
 522     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 523
 524     vlc_mutex_lock( &p_owner->lock );
 525
 526     assert( !p_owner->b_paused || !b_paused );
 527
 528     p_owner->b_paused = b_paused;
 529     p_owner->pause.i_date = i_date;
 530     p_owner->pause.i_ignore = 0;
 531     vlc_cond_signal( &p_owner->wait_request );
 532
 533     DecoderOutputChangePause( p_dec, b_paused, i_date );
 534
 535     vlc_mutex_unlock( &p_owner->lock );
 536 }
 537
 538 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
 539 {
 540     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 541
 542     vlc_mutex_lock( &p_owner->lock );
 543     p_owner->i_ts_delay = i_delay;
 544     vlc_mutex_unlock( &p_owner->lock );
 545 }
 546
 547 void input_DecoderStartBuffering( decoder_t *p_dec )
 548 {
 549     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 550
 551     vlc_mutex_lock( &p_owner->lock );
 552
 553     DecoderFlush( p_dec );
 554
 555     p_owner->buffer.b_first = true;
 556     p_owner->buffer.b_full = false;
 557     p_owner->buffer.i_count = 0;
 558
 559     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
 560             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
 561
 562     p_owner->buffer.p_picture = NULL;
 563     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
 564
 565     p_owner->buffer.p_subpic = NULL;
 566     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
 567
 568     p_owner->buffer.p_audio = NULL;
 569     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
 570
 571     p_owner->buffer.p_block = NULL;
 572     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
 573
 574
 575     p_owner->b_buffering = true;
 576
 577     vlc_cond_signal( &p_owner->wait_request );
 578
 579     vlc_mutex_unlock( &p_owner->lock );
 580 }
 581
 582 void input_DecoderStopBuffering( decoder_t *p_dec )
 583 {
 584     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 585
 586     vlc_mutex_lock( &p_owner->lock );
 587
 588     p_owner->b_buffering = false;
 589
 590     vlc_cond_signal( &p_owner->wait_request );
 591
 592     vlc_mutex_unlock( &p_owner->lock );
 593 }
 594
 595 void input_DecoderWaitBuffering( decoder_t *p_dec )
 596 {
 597     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 598
 599     vlc_mutex_lock( &p_owner->lock );
 600
 601     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
 602     {
 603         block_FifoWake( p_owner->p_fifo );
 604         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 605     }
 606
 607     vlc_mutex_unlock( &p_owner->lock );
 608 }
 609
 610 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 611 {
 612     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 613
 614     *pi_duration = 0;
 615
 616     vlc_mutex_lock( &p_owner->lock );
 617     if( p_dec->fmt_out.i_cat == VIDEO_ES )
 618     {
 619         if( p_owner->b_paused && p_owner->p_vout )
 620         {
 621             vout_NextPicture( p_owner->p_vout, pi_duration );
 622             p_owner->pause.i_ignore++;
 623             vlc_cond_signal( &p_owner->wait_request );
 624         }
 625     }
 626     else
 627     {
 628         /* TODO subtitle should not be flushed */
 629         DecoderFlush( p_dec );
 630     }
 631     vlc_mutex_unlock( &p_owner->lock );
 632 }
 633
 634 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
 635 {
 636     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 637     bool b_changed;
 638
 639     vlc_mutex_lock( &p_owner->lock );
 640     b_changed = p_owner->b_fmt_description;
 641     if( b_changed )
 642     {
 643         if( p_fmt )
 644             es_format_Copy( p_fmt, &p_owner->fmt_description );
 645
 646         if( pp_meta )
 647         {
 648             *pp_meta = NULL;
 649             if( p_owner->p_description )
 650             {
 651                 *pp_meta = vlc_meta_New();
 652                 if( *pp_meta )
 653                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
 654             }
 655         }
 656         p_owner->b_fmt_description = false;
 657     }
 658     vlc_mutex_unlock( &p_owner->lock );
 659     return b_changed;
 660 }
 661
 662 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
 663 {
 664     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 665
 666     return block_FifoSize( p_owner->p_fifo );
 667 }
 668
 669 void input_DecoderGetObjects( decoder_t *p_dec,
 670                               vout_thread_t **pp_vout, aout_instance_t **pp_aout )
 671 {
 672     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 673
 674     vlc_mutex_lock( &p_owner->lock );
 675     if( pp_vout )
 676         *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
 677     if( pp_aout )
 678         *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
 679     vlc_mutex_unlock( &p_owner->lock );
 680 }
 681
 682 /*****************************************************************************
 683  * Internal functions
 684  *****************************************************************************/
 685 static int DecoderGetInputAttachments( decoder_t *p_dec,
 686                                        input_attachment_t ***ppp_attachment,
 687                                        int *pi_attachment )
 688 {
 689     input_thread_t *p_input = p_dec->p_owner->p_input;
 690
 691     if( unlikely(p_input == NULL) )
 692         return VLC_ENOOBJ;
 693     return input_Control( p_input, INPUT_GET_ATTACHMENTS,
 694                           ppp_attachment, pi_attachment );
 695 }
 696 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 697 {
 698     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 699
 700     vlc_mutex_lock( &p_owner->lock );
 701     if( p_owner->b_buffering || p_owner->b_paused )
 702         i_ts = VLC_TS_INVALID;
 703     vlc_mutex_unlock( &p_owner->lock );
 704
 705     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
 706         return i_ts;
 707
 708     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
 709         return VLC_TS_INVALID;
 710
 711     return i_ts;
 712 }
 713 static int DecoderGetDisplayRate( decoder_t *p_dec )
 714 {
 715     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 716
 717     if( !p_owner->p_clock )
 718         return INPUT_RATE_DEFAULT;
 719     return input_clock_GetRate( p_owner->p_clock );
 720 }
 721
 722 /* */
 723 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 724 {
 725     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
 726              "VLC probably does not support this sound or video format.",
 727              (char*)&codec );
 728     dialog_Fatal( p_dec, _("No suitable decoder module"),
 729                  _("VLC does not support the audio or video format \"%4.4s\". "
 730                   "Unfortunately there is no way for you to fix this."),
 731                   (char*)&codec );
 732 }
 733
 734
 735 /**
 736  * Create a decoder object
 737  *
 738  * \param p_input the input thread
 739  * \param p_es the es descriptor
 740  * \param b_packetizer instead of a decoder
 741  * \return the decoder object
 742  */
 743 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
 744                                   input_thread_t *p_input,
 745                                   es_format_t *fmt, bool b_packetizer,
 746                                   input_resource_t *p_resource,
 747                                   sout_instance_t *p_sout )
 748 {
 749     decoder_t *p_dec;
 750     decoder_owner_sys_t *p_owner;
 751     es_format_t null_es_format;
 752
 753     p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), VLC_OBJECT_DECODER,
 754                                "decoder" );
 755     if( p_dec == NULL )
 756         return NULL;
 757
 758     p_dec->pf_decode_audio = NULL;
 759     p_dec->pf_decode_video = NULL;
 760     p_dec->pf_decode_sub = NULL;
 761     p_dec->pf_get_cc = NULL;
 762     p_dec->pf_packetize = NULL;
 763
 764     /* Initialize the decoder */
 765     p_dec->p_module = NULL;
 766
 767     memset( &null_es_format, 0, sizeof(es_format_t) );
 768     es_format_Copy( &p_dec->fmt_in, fmt );
 769     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 770
 771     p_dec->p_description = NULL;
 772
 773     /* Allocate our private structure for the decoder */
 774     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 775     if( unlikely(p_owner == NULL) )
 776     {
 777         vlc_object_release( p_dec );
 778         return NULL;
 779     }
 780     p_owner->i_preroll_end = VLC_TS_INVALID;
 781     p_owner->i_last_rate = INPUT_RATE_DEFAULT;
 782     p_owner->p_input = p_input;
 783     p_owner->p_resource = p_resource;
 784     p_owner->p_aout = NULL;
 785     p_owner->p_aout_input = NULL;
 786     p_owner->p_vout = NULL;
 787     p_owner->p_spu_vout = NULL;
 788     p_owner->i_spu_channel = 0;
 789     p_owner->i_spu_order = 0;
 790     p_owner->p_sout = p_sout;
 791     p_owner->p_sout_input = NULL;
 792     p_owner->p_packetizer = NULL;
 793     p_owner->b_packetizer = b_packetizer;
 794
 795     /* decoder fifo */
 796     p_owner->p_fifo = block_FifoNew();
 797     if( unlikely(p_owner->p_fifo == NULL) )
 798     {
 799         free( p_owner );
 800         vlc_object_release( p_dec );
 801         return NULL;
 802     }
 803
 804     /* Set buffers allocation callbacks for the decoders */
 805     p_dec->pf_aout_buffer_new = aout_new_buffer;
 806     p_dec->pf_aout_buffer_del = aout_del_buffer;
 807     p_dec->pf_vout_buffer_new = vout_new_buffer;
 808     p_dec->pf_vout_buffer_del = vout_del_buffer;
 809     p_dec->pf_picture_link    = vout_link_picture;
 810     p_dec->pf_picture_unlink  = vout_unlink_picture;
 811     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 812     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 813     /* */
 814     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
 815     p_dec->pf_get_display_date = DecoderGetDisplayDate;
 816     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
 817
 818     vlc_object_attach( p_dec, p_parent );
 819
 820     /* Find a suitable decoder/packetizer module */
 821     if( !b_packetizer )
 822         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
 823     else
 824         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 825
 826     /* Check if decoder requires already packetized data */
 827     if( !b_packetizer &&
 828         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 829     {
 830         p_owner->p_packetizer =
 831             vlc_custom_create( p_dec, sizeof( decoder_t ),
 832                                VLC_OBJECT_DECODER, "packetizer" );
 833         if( p_owner->p_packetizer )
 834         {
 835             es_format_Copy( &p_owner->p_packetizer->fmt_in,
 836                             &p_dec->fmt_in );
 837
 838             es_format_Copy( &p_owner->p_packetizer->fmt_out,
 839                             &null_es_format );
 840
 841             vlc_object_attach( p_owner->p_packetizer, p_parent );
 842
 843             p_owner->p_packetizer->p_module =
 844                 module_need( p_owner->p_packetizer,
 845                              "packetizer", "$packetizer", false );
 846
 847             if( !p_owner->p_packetizer->p_module )
 848             {
 849                 es_format_Clean( &p_owner->p_packetizer->fmt_in );
 850                 vlc_object_release( p_owner->p_packetizer );
 851             }
 852         }
 853     }
 854
 855     /* Copy ourself the input replay gain */
 856     if( fmt->i_cat == AUDIO_ES )
 857     {
 858         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 859         {
 860             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 861             {
 862                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 863                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 864             }
 865             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 866             {
 867                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 868                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 869             }
 870         }
 871     }
 872
 873     /* */
 874     vlc_mutex_init( &p_owner->lock );
 875     vlc_cond_init( &p_owner->wait_request );
 876     vlc_cond_init( &p_owner->wait_acknowledge );
 877
 878     p_owner->b_fmt_description = false;
 879     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
 880     p_owner->p_description = NULL;
 881
 882     p_owner->b_exit = false;
 883
 884     p_owner->b_paused = false;
 885     p_owner->pause.i_date = VLC_TS_INVALID;
 886     p_owner->pause.i_ignore = 0;
 887
 888     p_owner->b_buffering = false;
 889     p_owner->buffer.b_first = true;
 890     p_owner->buffer.b_full = false;
 891     p_owner->buffer.i_count = 0;
 892     p_owner->buffer.p_picture = NULL;
 893     p_owner->buffer.p_subpic = NULL;
 894     p_owner->buffer.p_audio = NULL;
 895     p_owner->buffer.p_block = NULL;
 896
 897     p_owner->b_flushing = false;
 898
 899     /* */
 900     p_owner->cc.b_supported = false;
 901     if( !b_packetizer )
 902     {
 903         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 904             p_owner->cc.b_supported = true;
 905         if( p_dec->pf_get_cc )
 906             p_owner->cc.b_supported = true;
 907     }
 908
 909     for( unsigned i = 0; i < 4; i++ )
 910     {
 911         p_owner->cc.pb_present[i] = false;
 912         p_owner->cc.pp_decoder[i] = NULL;
 913     }
 914     p_owner->i_ts_delay = 0;
 915     return p_dec;
 916 }
 917
 918 /**
 919  * The decoding main loop
 920  *
 921  * \param p_dec the decoder
 922  */
 923 static void *DecoderThread( void *p_data )
 924 {
 925     decoder_t *p_dec = (decoder_t *)p_data;
 926     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 927
 928     /* The decoder's main loop */
 929     for( ;; )
 930     {
 931         block_t *p_block = block_FifoGet( p_owner->p_fifo );
 932
 933         /* Make sure there is no cancellation point other than this one^^.
 934          * If you need one, be sure to push cleanup of p_block. */
 935         DecoderSignalBuffering( p_dec, p_block == NULL );
 936
 937         if( p_block )
 938         {
 939             int canc = vlc_savecancel();
 940
 941             if( p_dec->b_error )
 942                 DecoderError( p_dec, p_block );
 943             else
 944                 DecoderProcess( p_dec, p_block );
 945
 946             vlc_restorecancel( canc );
 947         }
 948     }
 949     return NULL;
 950 }
 951
 952 static block_t *DecoderBlockFlushNew()
 953 {
 954     block_t *p_null = block_Alloc( 128 );
 955     if( !p_null )
 956         return NULL;
 957
 958     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
 959                        BLOCK_FLAG_CORRUPTED |
 960                        BLOCK_FLAG_CORE_FLUSH;
 961     memset( p_null->p_buffer, 0, p_null->i_buffer );
 962
 963     return p_null;
 964 }
 965
 966 static void DecoderFlush( decoder_t *p_dec )
 967 {
 968     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 969
 970     vlc_assert_locked( &p_owner->lock );
 971
 972     /* Empty the fifo */
 973     block_FifoEmpty( p_owner->p_fifo );
 974
 975     /* Monitor for flush end */
 976     p_owner->b_flushing = true;
 977     vlc_cond_signal( &p_owner->wait_request );
 978
 979     /* Send a special block */
 980     block_t *p_null = DecoderBlockFlushNew();
 981     if( !p_null )
 982         return;
 983     input_DecoderDecode( p_dec, p_null, false );
 984
 985     /* */
 986     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
 987         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
 988 }
 989
 990 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
 991 {
 992     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 993
 994     vlc_mutex_lock( &p_owner->lock );
 995
 996     if( p_owner->b_buffering )
 997     {
 998         if( b_full )
 999             p_owner->buffer.b_full = true;
1000         vlc_cond_signal( &p_owner->wait_acknowledge );
1001     }
1002
1003     vlc_mutex_unlock( &p_owner->lock );
1004 }
1005
1006 static bool DecoderIsFlushing( decoder_t *p_dec )
1007 {
1008     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1009     bool b_flushing;
1010
1011     vlc_mutex_lock( &p_owner->lock );
1012
1013     b_flushing = p_owner->b_flushing;
1014
1015     vlc_mutex_unlock( &p_owner->lock );
1016
1017     return b_flushing;
1018 }
1019
1020 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
1021 {
1022     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1023
1024     vlc_assert_locked( &p_owner->lock );
1025
1026     while( !p_owner->b_flushing )
1027     {
1028         if( p_owner->b_paused )
1029         {
1030             if( p_owner->b_buffering && !p_owner->buffer.b_full )
1031                 break;
1032             if( p_owner->pause.i_ignore > 0 )
1033             {
1034                 p_owner->pause.i_ignore--;
1035                 break;
1036             }
1037         }
1038         else
1039         {
1040             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
1041                 break;
1042         }
1043         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1044     }
1045
1046     if( pb_reject )
1047         *pb_reject = p_owner->b_flushing;
1048 }
1049
1050 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1051 {
1052     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1053
1054     vlc_assert_locked( &p_owner->lock );
1055
1056     /* XXX only audio and video output have to be paused.
1057      * - for sout it is useless
1058      * - for subs, it is done by the vout
1059      */
1060     if( p_dec->fmt_out.i_cat == AUDIO_ES )
1061     {
1062         if( p_owner->p_aout )
1063             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1064                                  b_paused, i_date );
1065     }
1066     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1067     {
1068         if( p_owner->p_vout )
1069             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1070     }
1071 }
1072 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1073 {
1074     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1075         *pi_preroll = INT64_MAX;
1076     else if( p->i_dts > VLC_TS_INVALID )
1077         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1078     else if( p->i_pts > VLC_TS_INVALID )
1079         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1080 }
1081
1082 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1083 {
1084     mtime_t current_date = mdate();
1085
1086     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1087     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1088     {
1089         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1090          * for teletext streams. */
1091         return current_date + 400000;
1092     }
1093     return i_ts;
1094 }
1095
1096 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1097                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1098 {
1099     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1100     input_clock_t   *p_clock = p_owner->p_clock;
1101
1102     vlc_assert_locked( &p_owner->lock );
1103
1104     const mtime_t i_es_delay = p_owner->i_ts_delay;
1105
1106     if( p_clock )
1107     {
1108         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1109         int i_rate;
1110
1111         if( *pi_ts0 > VLC_TS_INVALID )
1112         {
1113             *pi_ts0 += i_es_delay;
1114             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1115                 *pi_ts1 += i_es_delay;
1116             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1117                 *pi_ts0 = VLC_TS_INVALID;
1118         }
1119         else
1120         {
1121             i_rate = input_clock_GetRate( p_clock );
1122         }
1123
1124         /* Do not create ephemere data because of rounding errors */
1125         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1126             *pi_ts1 += 1;
1127
1128         if( pi_duration )
1129             *pi_duration = ( *pi_duration * i_rate +
1130                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1131
1132         if( pi_rate )
1133             *pi_rate = i_rate;
1134
1135         if( b_telx )
1136         {
1137             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1138             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1139                 *pi_ts1 = *pi_ts0;
1140         }
1141     }
1142 }
1143
1144 static bool DecoderIsExitRequested( decoder_t *p_dec )
1145 {
1146     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1147
1148     vlc_mutex_lock( &p_owner->lock );
1149     bool b_exit = p_owner->b_exit;
1150     vlc_mutex_unlock( &p_owner->lock );
1151
1152     return b_exit;
1153 }
1154
1155 /**
1156  * If *pb_reject, it does nothing, otherwise it waits for the given
1157  * deadline or a flush request (in which case it set *pi_reject to true.
1158  */
1159 static void DecoderWaitDate( decoder_t *p_dec,
1160                              bool *pb_reject, mtime_t i_deadline )
1161 {
1162     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1163
1164     if( *pb_reject || i_deadline < 0 )
1165         return;
1166
1167     for( ;; )
1168     {
1169         vlc_mutex_lock( &p_owner->lock );
1170         if( p_owner->b_flushing || p_owner->b_exit )
1171         {
1172             *pb_reject = true;
1173             vlc_mutex_unlock( &p_owner->lock );
1174             break;
1175         }
1176         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1177                                         i_deadline );
1178         vlc_mutex_unlock( &p_owner->lock );
1179         if( i_ret )
1180             break;
1181     }
1182 }
1183
1184 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1185                               int *pi_played_sum, int *pi_lost_sum )
1186 {
1187     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1188     aout_instance_t *p_aout = p_owner->p_aout;
1189     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1190
1191     /* */
1192     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1193     {
1194         msg_Warn( p_dec, "non-dated audio buffer received" );
1195         *pi_lost_sum += 1;
1196         aout_BufferFree( p_audio );
1197         return;
1198     }
1199
1200     /* */
1201     vlc_mutex_lock( &p_owner->lock );
1202
1203     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1204     {
1205         p_audio->p_next = NULL;
1206
1207         *p_owner->buffer.pp_audio_next = p_audio;
1208         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1209
1210         p_owner->buffer.i_count++;
1211         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1212             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1213         {
1214             p_owner->buffer.b_full = true;
1215             vlc_cond_signal( &p_owner->wait_acknowledge );
1216         }
1217     }
1218
1219     for( ;; )
1220     {
1221         bool b_has_more = false;
1222         bool b_reject;
1223         DecoderWaitUnblock( p_dec, &b_reject );
1224
1225         if( p_owner->b_buffering )
1226         {
1227             vlc_mutex_unlock( &p_owner->lock );
1228             return;
1229         }
1230
1231         /* */
1232         if( p_owner->buffer.p_audio )
1233         {
1234             p_audio = p_owner->buffer.p_audio;
1235
1236             p_owner->buffer.p_audio = p_audio->p_next;
1237             p_owner->buffer.i_count--;
1238
1239             b_has_more = p_owner->buffer.p_audio != NULL;
1240             if( !b_has_more )
1241                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1242         }
1243
1244         /* */
1245         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1246         int i_rate = INPUT_RATE_DEFAULT;
1247
1248         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1249                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1250
1251         vlc_mutex_unlock( &p_owner->lock );
1252
1253         if( !p_aout || !p_aout_input ||
1254             p_audio->i_pts <= VLC_TS_INVALID ||
1255             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1256             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1257             b_reject = true;
1258
1259         DecoderWaitDate( p_dec, &b_reject,
1260                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1261
1262         if( !b_reject )
1263         {
1264             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1265                 *pi_played_sum += 1;
1266             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1267         }
1268         else
1269         {
1270             if( b_dated )
1271                 msg_Warn( p_dec, "received buffer in the future" );
1272             else
1273                 msg_Warn( p_dec, "non-dated audio buffer received" );
1274
1275             *pi_lost_sum += 1;
1276             aout_BufferFree( p_audio );
1277         }
1278
1279         if( !b_has_more )
1280             break;
1281
1282         vlc_mutex_lock( &p_owner->lock );
1283         if( !p_owner->buffer.p_audio )
1284         {
1285             vlc_mutex_unlock( &p_owner->lock );
1286             break;
1287         }
1288     }
1289 }
1290
1291 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1292 {
1293     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1294     aout_buffer_t   *p_aout_buf;
1295     int i_decoded = 0;
1296     int i_lost = 0;
1297     int i_played = 0;
1298
1299     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1300     {
1301         aout_instance_t *p_aout = p_owner->p_aout;
1302         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1303
1304         if( DecoderIsExitRequested( p_dec ) )
1305         {
1306             /* It prevent freezing VLC in case of broken decoder */
1307             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1308             if( p_block )
1309                 block_Release( p_block );
1310             break;
1311         }
1312         i_decoded++;
1313
1314         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1315             p_aout_buf->i_pts < p_owner->i_preroll_end )
1316         {
1317             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1318             continue;
1319         }
1320
1321         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1322         {
1323             msg_Dbg( p_dec, "End of audio preroll" );
1324             if( p_owner->p_aout && p_owner->p_aout_input )
1325                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1326             /* */
1327             p_owner->i_preroll_end = VLC_TS_INVALID;
1328         }
1329
1330         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1331     }
1332
1333     /* Update ugly stat */
1334     input_thread_t  *p_input = p_owner->p_input;
1335
1336     if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1337     {
1338         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1339
1340         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1341                              i_lost, NULL );
1342         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1343                              i_played, NULL );
1344         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1345                              i_decoded, NULL );
1346
1347         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1348     }
1349 }
1350 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1351 {
1352     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1353     block_t *p_cc;
1354     bool pb_present[4];
1355     bool b_processed = false;
1356     int i;
1357     int i_cc_decoder;
1358
1359     assert( p_dec_cc->pf_get_cc != NULL );
1360
1361     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1362     if( !p_owner->cc.b_supported )
1363         return;
1364
1365     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1366     if( !p_cc )
1367         return;
1368
1369     vlc_mutex_lock( &p_owner->lock );
1370     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1371     {
1372         p_owner->cc.pb_present[i] |= pb_present[i];
1373         if( p_owner->cc.pp_decoder[i] )
1374             i_cc_decoder++;
1375     }
1376
1377     for( i = 0; i < 4; i++ )
1378     {
1379         if( !p_owner->cc.pp_decoder[i] )
1380             continue;
1381
1382         if( i_cc_decoder > 1 )
1383             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1384         else
1385             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1386         i_cc_decoder--;
1387         b_processed = true;
1388     }
1389     vlc_mutex_unlock( &p_owner->lock );
1390
1391     if( !b_processed )
1392         block_Release( p_cc );
1393 }
1394
1395 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1396                               int *pi_played_sum, int *pi_lost_sum )
1397 {
1398     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1399     vout_thread_t  *p_vout = p_owner->p_vout;
1400     bool b_first_buffered;
1401
1402     if( p_picture->date <= VLC_TS_INVALID )
1403     {
1404         msg_Warn( p_dec, "non-dated video buffer received" );
1405         *pi_lost_sum += 1;
1406         vout_ReleasePicture( p_vout, p_picture );
1407         return;
1408     }
1409
1410     /* */
1411     vlc_mutex_lock( &p_owner->lock );
1412
1413     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1414     {
1415         p_picture->p_next = NULL;
1416
1417         *p_owner->buffer.pp_picture_next = p_picture;
1418         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1419
1420         p_owner->buffer.i_count++;
1421         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1422             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1423         {
1424             p_owner->buffer.b_full = true;
1425             vlc_cond_signal( &p_owner->wait_acknowledge );
1426         }
1427     }
1428     b_first_buffered = p_owner->buffer.p_picture != NULL;
1429
1430     for( ;; b_first_buffered = false )
1431     {
1432         bool b_has_more = false;
1433
1434         bool b_reject;
1435
1436         DecoderWaitUnblock( p_dec, &b_reject );
1437
1438         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1439         {
1440             vlc_mutex_unlock( &p_owner->lock );
1441             return;
1442         }
1443         bool b_buffering_first = p_owner->b_buffering;
1444
1445         /* */
1446         if( p_owner->buffer.p_picture )
1447         {
1448             p_picture = p_owner->buffer.p_picture;
1449
1450             p_owner->buffer.p_picture = p_picture->p_next;
1451             p_owner->buffer.i_count--;
1452
1453             b_has_more = p_owner->buffer.p_picture != NULL;
1454             if( !b_has_more )
1455                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1456         }
1457
1458         /* */
1459         if( b_buffering_first )
1460         {
1461             assert( p_owner->buffer.b_first );
1462             assert( !p_owner->buffer.i_count );
1463             msg_Dbg( p_dec, "Received first picture" );
1464             p_owner->buffer.b_first = false;
1465             p_picture->b_force = true;
1466         }
1467
1468         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1469         int i_rate = INPUT_RATE_DEFAULT;
1470         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1471                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1472
1473         vlc_mutex_unlock( &p_owner->lock );
1474
1475         /* */
1476         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1477             b_reject = true;
1478
1479         if( !b_reject )
1480         {
1481             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1482             {
1483                 /* Be sure to not display old picture after our own */
1484                 vout_Flush( p_vout, p_picture->date );
1485                 p_owner->i_last_rate = i_rate;
1486             }
1487             vout_PutPicture( p_vout, p_picture );
1488         }
1489         else
1490         {
1491             if( b_dated )
1492                 msg_Warn( p_dec, "early picture skipped" );
1493             else
1494                 msg_Warn( p_dec, "non-dated video buffer received" );
1495
1496             *pi_lost_sum += 1;
1497             vout_ReleasePicture( p_vout, p_picture );
1498         }
1499         int i_tmp_display;
1500         int i_tmp_lost;
1501         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1502
1503         *pi_played_sum += i_tmp_display;
1504         *pi_lost_sum += i_tmp_lost;
1505
1506         if( !b_has_more || b_buffering_first )
1507             break;
1508
1509         vlc_mutex_lock( &p_owner->lock );
1510         if( !p_owner->buffer.p_picture )
1511         {
1512             vlc_mutex_unlock( &p_owner->lock );
1513             break;
1514         }
1515     }
1516 }
1517
1518 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1519 {
1520     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1521     picture_t      *p_pic;
1522     int i_lost = 0;
1523     int i_decoded = 0;
1524     int i_displayed = 0;
1525
1526     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1527     {
1528         vout_thread_t  *p_vout = p_owner->p_vout;
1529         if( DecoderIsExitRequested( p_dec ) )
1530         {
1531             /* It prevent freezing VLC in case of broken decoder */
1532             vout_ReleasePicture( p_vout, p_pic );
1533             if( p_block )
1534                 block_Release( p_block );
1535             break;
1536         }
1537
1538         i_decoded++;
1539
1540         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1541         {
1542             vout_ReleasePicture( p_vout, p_pic );
1543             continue;
1544         }
1545
1546         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1547         {
1548             msg_Dbg( p_dec, "End of video preroll" );
1549             if( p_vout )
1550                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1551             /* */
1552             p_owner->i_preroll_end = VLC_TS_INVALID;
1553         }
1554
1555         if( p_dec->pf_get_cc &&
1556             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1557             DecoderGetCc( p_dec, p_dec );
1558
1559         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1560     }
1561
1562     /* Update ugly stat */
1563     input_thread_t *p_input = p_owner->p_input;
1564
1565     if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1566     {
1567         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1568
1569         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1570                              i_decoded, NULL );
1571         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1572                              i_lost , NULL);
1573
1574         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1575                              i_displayed, NULL);
1576
1577         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1578     }
1579 }
1580
1581 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1582                             bool b_telx )
1583 {
1584     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1585     vout_thread_t *p_vout = p_owner->p_spu_vout;
1586
1587     /* */
1588     if( p_subpic->i_start <= VLC_TS_INVALID && !b_telx )
1589     {
1590         msg_Warn( p_dec, "non-dated spu buffer received" );
1591         subpicture_Delete( p_subpic );
1592         return;
1593     }
1594
1595     /* */
1596     vlc_mutex_lock( &p_owner->lock );
1597
1598     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1599     {
1600         p_subpic->p_next = NULL;
1601
1602         *p_owner->buffer.pp_subpic_next = p_subpic;
1603         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1604
1605         p_owner->buffer.i_count++;
1606         /* XXX it is important to be full after the first one */
1607         if( p_owner->buffer.i_count > 0 )
1608         {
1609             p_owner->buffer.b_full = true;
1610             vlc_cond_signal( &p_owner->wait_acknowledge );
1611         }
1612     }
1613
1614     for( ;; )
1615     {
1616         bool b_has_more = false;
1617         bool b_reject;
1618         DecoderWaitUnblock( p_dec, &b_reject );
1619
1620         if( p_owner->b_buffering )
1621         {
1622             vlc_mutex_unlock( &p_owner->lock );
1623             return;
1624         }
1625
1626         /* */
1627         if( p_owner->buffer.p_subpic )
1628         {
1629             p_subpic = p_owner->buffer.p_subpic;
1630
1631             p_owner->buffer.p_subpic = p_subpic->p_next;
1632             p_owner->buffer.i_count--;
1633
1634             b_has_more = p_owner->buffer.p_subpic != NULL;
1635             if( !b_has_more )
1636                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1637         }
1638
1639         /* */
1640         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1641                       NULL, INT64_MAX, b_telx );
1642
1643         vlc_mutex_unlock( &p_owner->lock );
1644
1645         if( p_subpic->i_start <= VLC_TS_INVALID )
1646             b_reject = true;
1647
1648         DecoderWaitDate( p_dec, &b_reject,
1649                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1650
1651         if( !b_reject )
1652             vout_PutSubpicture( p_vout, p_subpic );
1653         else
1654             subpicture_Delete( p_subpic );
1655
1656         if( !b_has_more )
1657             break;
1658         vlc_mutex_lock( &p_owner->lock );
1659         if( !p_owner->buffer.p_subpic )
1660         {
1661             vlc_mutex_unlock( &p_owner->lock );
1662             break;
1663         }
1664     }
1665 }
1666
1667 #ifdef ENABLE_SOUT
1668 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1669                              bool b_telx )
1670 {
1671     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1672
1673     assert( p_owner->p_clock );
1674     assert( !p_sout_block->p_next );
1675
1676     vlc_mutex_lock( &p_owner->lock );
1677
1678     if( p_owner->b_buffering || p_owner->buffer.p_block )
1679     {
1680         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1681
1682         p_owner->buffer.i_count++;
1683         /* XXX it is important to be full after the first one */
1684         if( p_owner->buffer.i_count > 0 )
1685         {
1686             p_owner->buffer.b_full = true;
1687             vlc_cond_signal( &p_owner->wait_acknowledge );
1688         }
1689     }
1690
1691     for( ;; )
1692     {
1693         bool b_has_more = false;
1694         bool b_reject;
1695         DecoderWaitUnblock( p_dec, &b_reject );
1696
1697         if( p_owner->b_buffering )
1698         {
1699             vlc_mutex_unlock( &p_owner->lock );
1700             return;
1701         }
1702
1703         /* */
1704         if( p_owner->buffer.p_block )
1705         {
1706             p_sout_block = p_owner->buffer.p_block;
1707
1708             p_owner->buffer.p_block = p_sout_block->p_next;
1709             p_owner->buffer.i_count--;
1710
1711             b_has_more = p_owner->buffer.p_block != NULL;
1712             if( !b_has_more )
1713                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1714         }
1715         p_sout_block->p_next = NULL;
1716
1717         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1718                       &p_sout_block->i_length,
1719                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1720
1721         vlc_mutex_unlock( &p_owner->lock );
1722
1723         if( !b_reject )
1724             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1725         else
1726             block_Release( p_sout_block );
1727
1728         if( !b_has_more )
1729             break;
1730         vlc_mutex_lock( &p_owner->lock );
1731         if( !p_owner->buffer.p_block )
1732         {
1733             vlc_mutex_unlock( &p_owner->lock );
1734             break;
1735         }
1736     }
1737 }
1738 #endif
1739
1740 /* */
1741 static void DecoderFlushBuffering( decoder_t *p_dec )
1742 {
1743     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1744
1745     vlc_assert_locked( &p_owner->lock );
1746
1747     while( p_owner->buffer.p_picture )
1748     {
1749         picture_t *p_picture = p_owner->buffer.p_picture;
1750
1751         p_owner->buffer.p_picture = p_picture->p_next;
1752         p_owner->buffer.i_count--;
1753
1754         if( p_owner->p_vout )
1755         {
1756             vout_ReleasePicture( p_owner->p_vout, p_picture );
1757         }
1758
1759         if( !p_owner->buffer.p_picture )
1760             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1761     }
1762     while( p_owner->buffer.p_audio )
1763     {
1764         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1765
1766         p_owner->buffer.p_audio = p_audio->p_next;
1767         p_owner->buffer.i_count--;
1768
1769         aout_BufferFree( p_audio );
1770
1771         if( !p_owner->buffer.p_audio )
1772             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1773     }
1774     while( p_owner->buffer.p_subpic )
1775     {
1776         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1777
1778         p_owner->buffer.p_subpic = p_subpic->p_next;
1779         p_owner->buffer.i_count--;
1780
1781         subpicture_Delete( p_subpic );
1782
1783         if( !p_owner->buffer.p_subpic )
1784             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1785     }
1786     if( p_owner->buffer.p_block )
1787     {
1788         block_ChainRelease( p_owner->buffer.p_block );
1789
1790         p_owner->buffer.i_count = 0;
1791         p_owner->buffer.p_block = NULL;
1792         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1793     }
1794 }
1795
1796 #ifdef ENABLE_SOUT
1797 /* This function process a block for sout
1798  */
1799 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1800 {
1801     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1802     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1803     block_t *p_sout_block;
1804
1805     while( ( p_sout_block =
1806                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1807     {
1808         if( !p_owner->p_sout_input )
1809         {
1810             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1811
1812             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1813             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1814             if( p_dec->fmt_in.psz_language )
1815             {
1816                 free( p_owner->sout.psz_language );
1817                 p_owner->sout.psz_language =
1818                     strdup( p_dec->fmt_in.psz_language );
1819             }
1820
1821             p_owner->p_sout_input =
1822                 sout_InputNew( p_owner->p_sout,
1823                                &p_owner->sout );
1824
1825             if( p_owner->p_sout_input == NULL )
1826             {
1827                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1828                          (char *)&p_owner->sout.i_codec );
1829                 p_dec->b_error = true;
1830
1831                 while( p_sout_block )
1832                 {
1833                     block_t *p_next = p_sout_block->p_next;
1834                     block_Release( p_sout_block );
1835                     p_sout_block = p_next;
1836                 }
1837                 break;
1838             }
1839         }
1840
1841         while( p_sout_block )
1842         {
1843             block_t *p_next = p_sout_block->p_next;
1844
1845             p_sout_block->p_next = NULL;
1846
1847             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1848
1849             p_sout_block = p_next;
1850         }
1851     }
1852 }
1853 #endif
1854
1855 /* This function process a video block
1856  */
1857 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1858 {
1859     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1860
1861     if( p_owner->p_packetizer )
1862     {
1863         block_t *p_packetized_block;
1864         decoder_t *p_packetizer = p_owner->p_packetizer;
1865
1866         while( (p_packetized_block =
1867                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1868         {
1869             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1870             {
1871                 es_format_Clean( &p_dec->fmt_in );
1872                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1873             }
1874             if( p_packetizer->pf_get_cc )
1875                 DecoderGetCc( p_dec, p_packetizer );
1876
1877             while( p_packetized_block )
1878             {
1879                 block_t *p_next = p_packetized_block->p_next;
1880                 p_packetized_block->p_next = NULL;
1881
1882                 DecoderDecodeVideo( p_dec, p_packetized_block );
1883
1884                 p_packetized_block = p_next;
1885             }
1886         }
1887         /* The packetizer does not output a block that tell the decoder to flush
1888          * do it ourself */
1889         if( b_flush )
1890         {
1891             block_t *p_null = DecoderBlockFlushNew();
1892             if( p_null )
1893                 DecoderDecodeVideo( p_dec, p_null );
1894         }
1895     }
1896     else if( p_block )
1897     {
1898         DecoderDecodeVideo( p_dec, p_block );
1899     }
1900
1901     if( b_flush && p_owner->p_vout )
1902         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1903 }
1904
1905 /* This function process a audio block
1906  */
1907 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1908 {
1909     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1910
1911     if( p_owner->p_packetizer )
1912     {
1913         block_t *p_packetized_block;
1914         decoder_t *p_packetizer = p_owner->p_packetizer;
1915
1916         while( (p_packetized_block =
1917                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1918         {
1919             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1920             {
1921                 es_format_Clean( &p_dec->fmt_in );
1922                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1923             }
1924
1925             while( p_packetized_block )
1926             {
1927                 block_t *p_next = p_packetized_block->p_next;
1928                 p_packetized_block->p_next = NULL;
1929
1930                 DecoderDecodeAudio( p_dec, p_packetized_block );
1931
1932                 p_packetized_block = p_next;
1933             }
1934         }
1935         /* The packetizer does not output a block that tell the decoder to flush
1936          * do it ourself */
1937         if( b_flush )
1938         {
1939             block_t *p_null = DecoderBlockFlushNew();
1940             if( p_null )
1941                 DecoderDecodeAudio( p_dec, p_null );
1942         }
1943     }
1944     else if( p_block )
1945     {
1946         DecoderDecodeAudio( p_dec, p_block );
1947     }
1948
1949     if( b_flush && p_owner->p_aout )
1950         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1951 }
1952
1953 /* This function process a subtitle block
1954  */
1955 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1956 {
1957     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1958     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1959
1960     input_thread_t *p_input = p_owner->p_input;
1961     vout_thread_t *p_vout;
1962     subpicture_t *p_spu;
1963
1964     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1965     {
1966         if( p_input != NULL )
1967         {
1968             vlc_mutex_lock( &p_input->p->counters.counters_lock );
1969             stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1,
1970                                  NULL );
1971             vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1972         }
1973
1974         p_vout = input_resource_HoldVout( p_owner->p_resource );
1975         if( p_vout && p_owner->p_spu_vout == p_vout )
1976         {
1977             /* Preroll does not work very well with subtitle */
1978             if( p_spu->i_start > VLC_TS_INVALID &&
1979                 p_spu->i_start < p_owner->i_preroll_end &&
1980                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1981             {
1982                 subpicture_Delete( p_spu );
1983             }
1984             else
1985             {
1986                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1987             }
1988         }
1989         else
1990         {
1991             subpicture_Delete( p_spu );
1992         }
1993         if( p_vout )
1994             vlc_object_release( p_vout );
1995     }
1996
1997     if( b_flush && p_owner->p_spu_vout )
1998     {
1999         p_vout = input_resource_HoldVout( p_owner->p_resource );
2000
2001         if( p_vout && p_owner->p_spu_vout == p_vout )
2002             vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2003
2004         if( p_vout )
2005             vlc_object_release( p_vout );
2006     }
2007 }
2008
2009 /* */
2010 static void DecoderProcessOnFlush( decoder_t *p_dec )
2011 {
2012     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2013
2014     vlc_mutex_lock( &p_owner->lock );
2015     DecoderFlushBuffering( p_dec );
2016
2017     if( p_owner->b_flushing )
2018     {
2019         p_owner->b_flushing = false;
2020         vlc_cond_signal( &p_owner->wait_acknowledge );
2021     }
2022     vlc_mutex_unlock( &p_owner->lock );
2023 }
2024
2025 /**
2026  * Decode a block
2027  *
2028  * \param p_dec the decoder object
2029  * \param p_block the block to decode
2030  * \return VLC_SUCCESS or an error code
2031  */
2032 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
2033 {
2034     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
2035     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2036
2037     if( p_block && p_block->i_buffer <= 0 )
2038     {
2039         assert( !b_flush_request );
2040         block_Release( p_block );
2041         return;
2042     }
2043
2044 #ifdef ENABLE_SOUT
2045     if( p_owner->b_packetizer )
2046     {
2047         if( p_block )
2048             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2049
2050         DecoderProcessSout( p_dec, p_block );
2051     }
2052     else
2053 #endif
2054     {
2055         bool b_flush = false;
2056
2057         if( p_block )
2058         {
2059             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
2060             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
2061
2062             b_flush = !b_flushing && b_flush_request;
2063
2064             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2065         }
2066
2067         if( p_dec->fmt_out.i_cat == AUDIO_ES )
2068         {
2069             DecoderProcessAudio( p_dec, p_block, b_flush );
2070         }
2071         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
2072         {
2073             DecoderProcessVideo( p_dec, p_block, b_flush );
2074         }
2075         else if( p_dec->fmt_out.i_cat == SPU_ES )
2076         {
2077             DecoderProcessSpu( p_dec, p_block, b_flush );
2078         }
2079         else
2080         {
2081             msg_Err( p_dec, "unknown ES format" );
2082             p_dec->b_error = true;
2083         }
2084     }
2085
2086     /* */
2087     if( b_flush_request )
2088         DecoderProcessOnFlush( p_dec );
2089 }
2090
2091 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2092 {
2093     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2094
2095     /* */
2096     if( p_block )
2097         block_Release( p_block );
2098
2099     if( b_flush_request )
2100         DecoderProcessOnFlush( p_dec );
2101 }
2102
2103
2104 /**
2105  * Destroys a decoder object
2106  *
2107  * \param p_dec the decoder object
2108  * \return nothing
2109  */
2110 static void DeleteDecoder( decoder_t * p_dec )
2111 {
2112     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2113
2114     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2115              (char*)&p_dec->fmt_in.i_codec,
2116              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2117
2118     /* Free all packets still in the decoder fifo. */
2119     block_FifoEmpty( p_owner->p_fifo );
2120     block_FifoRelease( p_owner->p_fifo );
2121
2122     /* */
2123     vlc_mutex_lock( &p_owner->lock );
2124     DecoderFlushBuffering( p_dec );
2125     vlc_mutex_unlock( &p_owner->lock );
2126
2127     /* Cleanup */
2128     if( p_owner->p_aout )
2129     {
2130         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2131         input_resource_RequestAout( p_owner->p_resource, p_owner->p_aout );
2132         if( p_owner->p_input != NULL )
2133             input_SendEventAout( p_owner->p_input );
2134     }
2135     if( p_owner->p_vout )
2136     {
2137         /* Hack to make sure all the the pictures are freed by the decoder
2138          * and that the vout is not paused anymore */
2139         vout_Reset( p_owner->p_vout );
2140
2141         /* */
2142         input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
2143                                     0, true );
2144         if( p_owner->p_input != NULL )
2145             input_SendEventVout( p_owner->p_input );
2146     }
2147
2148 #ifdef ENABLE_SOUT
2149     if( p_owner->p_sout_input )
2150     {
2151         sout_InputDelete( p_owner->p_sout_input );
2152         es_format_Clean( &p_owner->sout );
2153     }
2154 #endif
2155
2156     if( p_dec->fmt_out.i_cat == SPU_ES )
2157     {
2158         vout_thread_t *p_vout;
2159
2160         p_vout = input_resource_HoldVout( p_owner->p_resource );
2161         if( p_vout )
2162         {
2163             if( p_owner->p_spu_vout == p_vout )
2164                 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2165             vlc_object_release( p_vout );
2166         }
2167     }
2168
2169     es_format_Clean( &p_dec->fmt_in );
2170     es_format_Clean( &p_dec->fmt_out );
2171     if( p_dec->p_description )
2172         vlc_meta_Delete( p_dec->p_description );
2173     es_format_Clean( &p_owner->fmt_description );
2174     if( p_owner->p_description )
2175         vlc_meta_Delete( p_owner->p_description );
2176
2177     if( p_owner->p_packetizer )
2178     {
2179         module_unneed( p_owner->p_packetizer,
2180                        p_owner->p_packetizer->p_module );
2181         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2182         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2183         if( p_owner->p_packetizer->p_description )
2184             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2185         vlc_object_release( p_owner->p_packetizer );
2186     }
2187
2188     vlc_cond_destroy( &p_owner->wait_acknowledge );
2189     vlc_cond_destroy( &p_owner->wait_request );
2190     vlc_mutex_destroy( &p_owner->lock );
2191
2192     vlc_object_release( p_dec );
2193
2194     free( p_owner );
2195 }
2196
2197 /*****************************************************************************
2198  * Buffers allocation callbacks for the decoders
2199  *****************************************************************************/
2200 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2201 {
2202     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2203
2204     vlc_assert_locked( &p_owner->lock );
2205
2206     p_owner->b_fmt_description = true;
2207
2208     /* Copy es_format */
2209     es_format_Clean( &p_owner->fmt_description );
2210     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2211
2212     /* Move p_description */
2213     if( p_owner->p_description && p_dec->p_description )
2214         vlc_meta_Delete( p_owner->p_description );
2215     p_owner->p_description = p_dec->p_description;
2216     p_dec->p_description = NULL;
2217 }
2218 static vout_thread_t *aout_request_vout( void *p_private,
2219                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2220 {
2221     decoder_t *p_dec = p_private;
2222     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2223     input_thread_t *p_input = p_owner->p_input;
2224
2225     p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
2226                                          b_recyle );
2227     if( p_input != NULL )
2228         input_SendEventVout( p_input );
2229
2230     return p_vout;
2231 }
2232
2233 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2234 {
2235     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2236     aout_buffer_t *p_buffer;
2237
2238     if( p_owner->p_aout_input != NULL &&
2239         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2240           p_dec->fmt_out.audio.i_original_channels !=
2241               p_owner->audio.i_original_channels ||
2242           p_dec->fmt_out.audio.i_bytes_per_frame !=
2243               p_owner->audio.i_bytes_per_frame ) )
2244     {
2245         aout_input_t *p_aout_input = p_owner->p_aout_input;
2246         aout_instance_t *p_aout = p_owner->p_aout;
2247
2248         /* Parameters changed, restart the aout */
2249         vlc_mutex_lock( &p_owner->lock );
2250
2251         DecoderFlushBuffering( p_dec );
2252
2253         aout_DecDelete( p_owner->p_aout, p_aout_input );
2254         p_owner->p_aout = NULL;
2255         p_owner->p_aout_input = NULL;
2256
2257         vlc_mutex_unlock( &p_owner->lock );
2258         input_resource_RequestAout( p_owner->p_resource, p_aout );
2259     }
2260
2261     if( p_owner->p_aout_input == NULL )
2262     {
2263         const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2264         audio_sample_format_t format;
2265         aout_input_t *p_aout_input;
2266         aout_instance_t *p_aout;
2267         aout_request_vout_t request_vout;
2268
2269         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2270         p_owner->audio = p_dec->fmt_out.audio;
2271
2272         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2273         if( i_force_dolby &&
2274             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2275                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2276         {
2277             if( i_force_dolby == 1 )
2278             {
2279                 format.i_original_channels = format.i_original_channels |
2280                                              AOUT_CHAN_DOLBYSTEREO;
2281             }
2282             else /* i_force_dolby == 2 */
2283             {
2284                 format.i_original_channels = format.i_original_channels &
2285                                              ~AOUT_CHAN_DOLBYSTEREO;
2286             }
2287         }
2288
2289         request_vout.pf_request_vout = aout_request_vout;
2290         request_vout.p_private = p_dec;
2291
2292         assert( p_owner->p_aout == NULL );
2293         p_aout = input_resource_RequestAout( p_owner->p_resource, NULL );
2294         if( p_aout )
2295         {
2296             p_aout_input = aout_DecNew( p_aout, &format,
2297                                         &p_dec->fmt_out.audio_replay_gain,
2298                                         &request_vout );
2299             if( p_aout_input == NULL )
2300             {
2301                 input_resource_RequestAout( p_owner->p_resource, p_aout );
2302                 p_aout = NULL;
2303             }
2304         }
2305         else
2306             p_aout_input = NULL;
2307
2308         vlc_mutex_lock( &p_owner->lock );
2309
2310         p_owner->p_aout = p_aout;
2311         p_owner->p_aout_input = p_aout_input;
2312         DecoderUpdateFormatLocked( p_dec );
2313
2314         vlc_mutex_unlock( &p_owner->lock );
2315
2316         if( p_owner->p_input != NULL )
2317             input_SendEventAout( p_owner->p_input );
2318
2319         if( p_owner->p_aout_input == NULL )
2320         {
2321             msg_Err( p_dec, "failed to create audio output" );
2322             p_dec->b_error = true;
2323             return NULL;
2324         }
2325         p_dec->fmt_out.audio.i_bytes_per_frame =
2326             p_owner->audio.i_bytes_per_frame;
2327     }
2328
2329     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2330
2331     return p_buffer;
2332 }
2333
2334 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2335 {
2336     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2337
2338     aout_DecDeleteBuffer( p_owner->p_aout,
2339                           p_owner->p_aout_input, p_buffer );
2340 }
2341
2342 static picture_t *vout_new_buffer( decoder_t *p_dec )
2343 {
2344     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2345
2346     if( p_owner->p_vout == NULL ||
2347         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2348         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2349         p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2350         p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2351         p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset  ||
2352         p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset  ||
2353         p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2354         (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2355         (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2356     {
2357         vout_thread_t *p_vout;
2358
2359         if( !p_dec->fmt_out.video.i_width ||
2360             !p_dec->fmt_out.video.i_height )
2361         {
2362             /* Can't create a new vout without display size */
2363             return NULL;
2364         }
2365
2366         video_format_t fmt = p_dec->fmt_out.video;
2367         fmt.i_chroma = p_dec->fmt_out.i_codec;
2368         p_owner->video = fmt;
2369
2370         if( !fmt.i_visible_width || !fmt.i_visible_height )
2371         {
2372             if( p_dec->fmt_in.video.i_visible_width &&
2373                 p_dec->fmt_in.video.i_visible_height )
2374             {
2375                 fmt.i_visible_width  = p_dec->fmt_in.video.i_visible_width;
2376                 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2377             }
2378             else
2379             {
2380                 fmt.i_visible_width  = fmt.i_width;
2381                 fmt.i_visible_height = fmt.i_height;
2382             }
2383         }
2384
2385         if( fmt.i_visible_height == 1088 &&
2386             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2387         {
2388             fmt.i_visible_height = 1080;
2389             if( !(fmt.i_sar_num % 136))
2390             {
2391                 fmt.i_sar_num *= 135;
2392                 fmt.i_sar_den *= 136;
2393             }
2394             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2395         }
2396
2397         if( !fmt.i_sar_num || !fmt.i_sar_den )
2398         {
2399             fmt.i_sar_num = 1;
2400             fmt.i_sar_den = 1;
2401         }
2402
2403         vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2404                      fmt.i_sar_num, fmt.i_sar_den, 50000 );
2405
2406         vlc_mutex_lock( &p_owner->lock );
2407
2408         DecoderFlushBuffering( p_dec );
2409
2410         p_vout = p_owner->p_vout;
2411         p_owner->p_vout = NULL;
2412         vlc_mutex_unlock( &p_owner->lock );
2413
2414         unsigned dpb_size;
2415         switch( p_dec->fmt_in.i_codec )
2416         {
2417         case VLC_CODEC_H264:
2418         case VLC_CODEC_DIRAC: /* FIXME valid ? */
2419             dpb_size = 18;
2420             break;
2421         case VLC_CODEC_VP5:
2422         case VLC_CODEC_VP6:
2423         case VLC_CODEC_VP6F:
2424         case VLC_CODEC_VP8:
2425             dpb_size = 3;
2426             break;
2427         default:
2428             dpb_size = 2;
2429             break;
2430         }
2431         p_vout = input_resource_RequestVout( p_owner->p_resource,
2432                                              p_vout, &fmt,
2433                                              dpb_size + 1 + DECODER_MAX_BUFFERING_COUNT,
2434                                              true );
2435         vlc_mutex_lock( &p_owner->lock );
2436         p_owner->p_vout = p_vout;
2437
2438         DecoderUpdateFormatLocked( p_dec );
2439
2440         vlc_mutex_unlock( &p_owner->lock );
2441
2442         if( p_owner->p_input != NULL )
2443             input_SendEventVout( p_owner->p_input );
2444         if( p_vout == NULL )
2445         {
2446             msg_Err( p_dec, "failed to create video output" );
2447             p_dec->b_error = true;
2448             return NULL;
2449         }
2450     }
2451
2452     /* Get a new picture
2453      */
2454     for( ;; )
2455     {
2456         if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2457             return NULL;
2458
2459         picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2460         if( p_picture )
2461             return p_picture;
2462
2463         if( DecoderIsFlushing( p_dec ) )
2464             return NULL;
2465
2466         /* */
2467         DecoderSignalBuffering( p_dec, true );
2468
2469         /* Check the decoder doesn't leak pictures */
2470         vout_FixLeaks( p_owner->p_vout );
2471
2472         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2473         msleep( VOUT_OUTMEM_SLEEP );
2474     }
2475 }
2476
2477 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2478 {
2479     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2480 }
2481
2482 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2483 {
2484     vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2485 }
2486
2487 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2488 {
2489     vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2490 }
2491
2492 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2493                                      const subpicture_updater_t *p_updater )
2494 {
2495     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2496     vout_thread_t *p_vout = NULL;
2497     subpicture_t *p_subpic;
2498     int i_attempts = 30;
2499
2500     while( i_attempts-- )
2501     {
2502         if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2503             break;
2504
2505         p_vout = input_resource_HoldVout( p_owner->p_resource );
2506         if( p_vout )
2507             break;
2508
2509         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2510     }
2511
2512     if( !p_vout )
2513     {
2514         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2515         return NULL;
2516     }
2517
2518     if( p_owner->p_spu_vout != p_vout )
2519     {
2520         vlc_mutex_lock( &p_owner->lock );
2521
2522         DecoderFlushBuffering( p_dec );
2523
2524         vlc_mutex_unlock( &p_owner->lock );
2525
2526         p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2527         p_owner->i_spu_order = 0;
2528         p_owner->p_spu_vout = p_vout;
2529     }
2530
2531     p_subpic = subpicture_New( p_updater );
2532     if( p_subpic )
2533     {
2534         p_subpic->i_channel = p_owner->i_spu_channel;
2535         p_subpic->i_order = p_owner->i_spu_order++;
2536         p_subpic->b_subtitle = true;
2537     }
2538
2539     vlc_object_release( p_vout );
2540
2541     return p_subpic;
2542 }
2543
2544 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2545 {
2546     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2547     vout_thread_t *p_vout = NULL;
2548
2549     p_vout = input_resource_HoldVout( p_owner->p_resource );
2550     if( !p_vout || p_owner->p_spu_vout != p_vout )
2551     {
2552         if( p_vout )
2553             vlc_object_release( p_vout );
2554         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2555         return;
2556     }
2557
2558     subpicture_Delete( p_subpic );
2559
2560     vlc_object_release( p_vout );
2561 }
2562