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/vlc.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
  43 #include <vlc_interface.h>
  44 #include "audio_output/aout_internal.h"
  45 #include "stream_output/stream_output.h"
  46 #include "input_internal.h"
  47
  48 static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int );
  49 static void        DeleteDecoder( decoder_t * );
  50
  51 static int         DecoderThread( decoder_t * );
  52 static int         DecoderDecode( decoder_t * p_dec, block_t *p_block );
  53
  54 /* Buffers allocation callbacks for the decoders */
  55 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
  56 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
  57
  58 static picture_t *vout_new_buffer( decoder_t * );
  59 static void vout_del_buffer( decoder_t *, picture_t * );
  60 static void vout_link_picture( decoder_t *, picture_t * );
  61 static void vout_unlink_picture( decoder_t *, picture_t * );
  62
  63 static subpicture_t *spu_new_buffer( decoder_t * );
  64 static void spu_del_buffer( decoder_t *, subpicture_t * );
  65
  66 static es_format_t null_es_format;
  67
  68 struct decoder_owner_sys_t
  69 {
  70     vlc_bool_t      b_own_thread;
  71
  72     int64_t         i_preroll_end;
  73
  74     input_thread_t  *p_input;
  75
  76     aout_instance_t *p_aout;
  77     aout_input_t    *p_aout_input;
  78
  79     vout_thread_t   *p_vout;
  80
  81     vout_thread_t   *p_spu_vout;
  82     int              i_spu_channel;
  83
  84     sout_instance_t         *p_sout;
  85     sout_packetizer_input_t *p_sout_input;
  86
  87     /* Some decoders require already packetized data (ie. not truncated) */
  88     decoder_t *p_packetizer;
  89
  90     /* Current format in use by the output */
  91     video_format_t video;
  92     audio_format_t audio;
  93     es_format_t    sout;
  94
  95     /* fifo */
  96     block_fifo_t *p_fifo;
  97
  98     /* CC */
  99     vlc_bool_t b_cc_supported;
 100     vlc_mutex_t lock_cc;
 101     vlc_bool_t pb_cc_present[4];
 102     decoder_t *pp_cc[4];
 103 };
 104
 105 /* */
 106 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
 107 {
 108     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
 109              "VLC probably does not support this sound or video format.",
 110              (char*)&codec );
 111     intf_UserFatal( p_dec, VLC_FALSE, _("No suitable decoder module"),
 112                     _("VLC does not support the audio or video format \"%4.4s\". "
 113                       "Unfortunately there is no way for you to fix this."), (char*)&codec );
 114 }
 115
 116 /* decoder_GetInputAttachment:
 117  */
 118 input_attachment_t *decoder_GetInputAttachment( decoder_t *p_dec,
 119                                                 const char *psz_name )
 120 {
 121     input_attachment_t *p_attachment;
 122     if( input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENT, &p_attachment, psz_name ) )
 123         return NULL;
 124     return p_attachment;
 125 }
 126 /* decoder_GetInputAttachments:
 127  */
 128 int decoder_GetInputAttachments( decoder_t *p_dec,
 129                                  input_attachment_t ***ppp_attachment,
 130                                  int *pi_attachment )
 131 {
 132     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
 133                           ppp_attachment, pi_attachment );
 134 }
 135 /* decoder_GetDisplayDate:
 136  */
 137 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
 138 {
 139     VLC_UNUSED(p_dec);
 140     return i_ts;
 141 }
 142
 143 /**
 144  * Spawns a new decoder thread
 145  *
 146  * \param p_input the input thread
 147  * \param p_es the es descriptor
 148  * \return the spawned decoder object
 149  */
 150 decoder_t *input_DecoderNew( input_thread_t *p_input,
 151                              es_format_t *fmt, vlc_bool_t b_force_decoder )
 152 {
 153     decoder_t   *p_dec = NULL;
 154     vlc_value_t val;
 155
 156     /* If we are in sout mode, search for packetizer module */
 157     if( p_input->p->p_sout && !b_force_decoder )
 158     {
 159         /* Create the decoder configuration structure */
 160         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER );
 161         if( p_dec == NULL )
 162         {
 163             msg_Err( p_input, "could not create packetizer" );
 164             intf_UserFatal( p_input, VLC_FALSE, _("Streaming / Transcoding failed"),
 165                             _("VLC could not open the packetizer module.") );
 166             return NULL;
 167         }
 168     }
 169     else
 170     {
 171         /* Create the decoder configuration structure */
 172         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER );
 173         if( p_dec == NULL )
 174         {
 175             msg_Err( p_input, "could not create decoder" );
 176             intf_UserFatal( p_input, VLC_FALSE, _("Streaming / Transcoding failed"),
 177                             _("VLC could not open the decoder module.") );
 178             return NULL;
 179         }
 180     }
 181
 182     if( !p_dec->p_module )
 183     {
 184         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
 185
 186         DeleteDecoder( p_dec );
 187         vlc_object_release( p_dec );
 188         return NULL;
 189     }
 190
 191     if( p_input->p->p_sout && p_input->p->input.b_can_pace_control &&
 192         !b_force_decoder )
 193     {
 194         msg_Dbg( p_input, "stream out mode -> no decoder thread" );
 195         p_dec->p_owner->b_own_thread = VLC_FALSE;
 196     }
 197     else
 198     {
 199         var_Get( p_input, "minimize-threads", &val );
 200         p_dec->p_owner->b_own_thread = !val.b_bool;
 201     }
 202
 203     if( p_dec->p_owner->b_own_thread )
 204     {
 205         int i_priority;
 206         if( fmt->i_cat == AUDIO_ES )
 207             i_priority = VLC_THREAD_PRIORITY_AUDIO;
 208         else
 209             i_priority = VLC_THREAD_PRIORITY_VIDEO;
 210
 211         /* Spawn the decoder thread */
 212         if( vlc_thread_create( p_dec, "decoder", DecoderThread,
 213                                i_priority, VLC_FALSE ) )
 214         {
 215             msg_Err( p_dec, "cannot spawn decoder thread" );
 216             module_Unneed( p_dec, p_dec->p_module );
 217             DeleteDecoder( p_dec );
 218             vlc_object_release( p_dec );
 219             return NULL;
 220         }
 221     }
 222
 223     return p_dec;
 224 }
 225
 226 /**
 227  * Kills a decoder thread and waits until it's finished
 228  *
 229  * \param p_input the input thread
 230  * \param p_es the es descriptor
 231  * \return nothing
 232  */
 233 void input_DecoderDelete( decoder_t *p_dec )
 234 {
 235     vlc_object_kill( p_dec );
 236
 237     if( p_dec->p_owner->b_own_thread )
 238     {
 239         /* Make sure the thread leaves the function by
 240          * sending it an empty block. */
 241         block_t *p_block = block_New( p_dec, 0 );
 242         input_DecoderDecode( p_dec, p_block );
 243
 244         vlc_thread_join( p_dec );
 245
 246         /* Don't module_Unneed() here because of the dll loader that wants
 247          * close() in the same thread than open()/decode() */
 248     }
 249     else
 250     {
 251         /* Flush */
 252         input_DecoderDecode( p_dec, NULL );
 253
 254         module_Unneed( p_dec, p_dec->p_module );
 255     }
 256
 257     /* */
 258     if( p_dec->p_owner->b_cc_supported )
 259     {
 260         int i;
 261         for( i = 0; i < 4; i++ )
 262             input_DecoderSetCcState( p_dec, VLC_FALSE, i );
 263     }
 264
 265     /* Delete decoder configuration */
 266     DeleteDecoder( p_dec );
 267
 268     /* Delete the decoder */
 269     vlc_object_release( p_dec );
 270 }
 271
 272 /**
 273  * Put a block_t in the decoder's fifo.
 274  *
 275  * \param p_dec the decoder object
 276  * \param p_block the data block
 277  */
 278 void input_DecoderDecode( decoder_t * p_dec, block_t *p_block )
 279 {
 280     if( p_dec->p_owner->b_own_thread )
 281     {
 282         if( p_dec->p_owner->p_input->p->b_out_pace_control )
 283         {
 284             /* FIXME !!!!! */
 285             while( !p_dec->b_die && !p_dec->b_error &&
 286                    block_FifoCount( p_dec->p_owner->p_fifo ) > 10 )
 287             {
 288                 msleep( 1000 );
 289             }
 290         }
 291         else if( block_FifoSize( p_dec->p_owner->p_fifo ) > 50000000 /* 50 MB */ )
 292         {
 293             /* FIXME: ideally we would check the time amount of data
 294              * in the fifo instead of its size. */
 295             msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
 296                       "consumed quickly enough), resetting fifo!" );
 297             block_FifoEmpty( p_dec->p_owner->p_fifo );
 298         }
 299
 300         block_FifoPut( p_dec->p_owner->p_fifo, p_block );
 301     }
 302     else
 303     {
 304         if( p_dec->b_error || (p_block && p_block->i_buffer <= 0) )
 305         {
 306             if( p_block ) block_Release( p_block );
 307         }
 308         else
 309         {
 310             DecoderDecode( p_dec, p_block );
 311         }
 312     }
 313 }
 314
 315 void input_DecoderDiscontinuity( decoder_t * p_dec, vlc_bool_t b_flush )
 316 {
 317     block_t *p_null;
 318
 319     /* Empty the fifo */
 320     if( p_dec->p_owner->b_own_thread && b_flush )
 321         block_FifoEmpty( p_dec->p_owner->p_fifo );
 322
 323     /* Send a special block */
 324     p_null = block_New( p_dec, 128 );
 325     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
 326     /* FIXME check for p_packetizer or b_packitized from es_format_t of input ? */
 327     if( p_dec->p_owner->p_packetizer && b_flush )
 328         p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
 329     memset( p_null->p_buffer, 0, p_null->i_buffer );
 330
 331     input_DecoderDecode( p_dec, p_null );
 332 }
 333
 334 vlc_bool_t input_DecoderEmpty( decoder_t * p_dec )
 335 {
 336     if( p_dec->p_owner->b_own_thread
 337      && block_FifoCount( p_dec->p_owner->p_fifo ) > 0 )
 338     {
 339         return VLC_FALSE;
 340     }
 341     return VLC_TRUE;
 342 }
 343
 344 void input_DecoderIsCcPresent( decoder_t *p_dec, vlc_bool_t pb_present[4] )
 345 {
 346     int i;
 347
 348     vlc_mutex_lock( &p_dec->p_owner->lock_cc );
 349     for( i = 0; i < 4; i++ )
 350         pb_present[i] =  p_dec->p_owner->pb_cc_present[i];
 351     vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
 352 }
 353 int input_DecoderSetCcState( decoder_t *p_dec, vlc_bool_t b_decode, int i_channel )
 354 {
 355     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 356
 357     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
 358
 359     if( i_channel < 0 || i_channel >= 4 || !p_owner->pb_cc_present[i_channel] )
 360         return VLC_EGENERIC;
 361
 362     if( b_decode )
 363     {
 364         static const vlc_fourcc_t fcc[4] = {
 365             VLC_FOURCC('c', 'c', '1', ' '),
 366             VLC_FOURCC('c', 'c', '2', ' '),
 367             VLC_FOURCC('c', 'c', '3', ' '),
 368             VLC_FOURCC('c', 'c', '4', ' '),
 369         };
 370         decoder_t *p_cc;
 371         es_format_t fmt;
 372
 373         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
 374         p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER );
 375         if( !p_cc )
 376         {
 377             msg_Err( p_dec, "could not create decoder" );
 378             intf_UserFatal( p_dec, VLC_FALSE, _("Streaming / Transcoding failed"),
 379                             _("VLC could not open the decoder module.") );
 380             return VLC_EGENERIC;
 381         }
 382         else if( !p_cc->p_module )
 383         {
 384             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
 385             DeleteDecoder( p_cc );
 386             vlc_object_release( p_cc );
 387             return VLC_EGENERIC;
 388         }
 389
 390         vlc_mutex_lock( &p_owner->lock_cc );
 391         p_dec->p_owner->pp_cc[i_channel] = p_cc;
 392         vlc_mutex_unlock( &p_owner->lock_cc );
 393     }
 394     else
 395     {
 396         decoder_t *p_cc;
 397
 398         vlc_mutex_lock( &p_owner->lock_cc );
 399         p_cc = p_dec->p_owner->pp_cc[i_channel];
 400         p_dec->p_owner->pp_cc[i_channel] = NULL;
 401         vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
 402
 403         if( p_cc )
 404         {
 405             vlc_object_kill( p_cc );
 406             module_Unneed( p_cc, p_cc->p_module );
 407             DeleteDecoder( p_cc );
 408             vlc_object_release( p_cc );
 409         }
 410     }
 411     return VLC_SUCCESS;
 412 }
 413 int input_DecoderGetCcState( decoder_t *p_dec, vlc_bool_t *pb_decode, int i_channel )
 414 {
 415     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 416
 417     *pb_decode = VLC_FALSE;
 418     if( i_channel < 0 || i_channel >= 4 || !p_owner->pb_cc_present[i_channel] )
 419         return VLC_EGENERIC;
 420
 421     vlc_mutex_lock( &p_owner->lock_cc );
 422     *pb_decode = p_dec->p_owner->pp_cc[i_channel] != NULL;
 423     vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
 424     return VLC_EGENERIC;
 425 }
 426
 427 /**
 428  * Create a decoder object
 429  *
 430  * \param p_input the input thread
 431  * \param p_es the es descriptor
 432  * \param i_object_type Object type as define in include/vlc_objects.h
 433  * \return the decoder object
 434  */
 435 static decoder_t * CreateDecoder( input_thread_t *p_input,
 436                                   es_format_t *fmt, int i_object_type )
 437 {
 438     decoder_t *p_dec;
 439     decoder_owner_sys_t *p_owner;
 440     int i;
 441
 442     p_dec = vlc_object_create( p_input, i_object_type );
 443     if( p_dec == NULL )
 444     {
 445         msg_Err( p_input, "out of memory" );
 446         return NULL;
 447     }
 448
 449     p_dec->pf_decode_audio = 0;
 450     p_dec->pf_decode_video = 0;
 451     p_dec->pf_decode_sub = 0;
 452     p_dec->pf_get_cc = 0;
 453     p_dec->pf_packetize = 0;
 454
 455     /* Initialize the decoder fifo */
 456     p_dec->p_module = NULL;
 457
 458     memset( &null_es_format, 0, sizeof(es_format_t) );
 459     es_format_Copy( &p_dec->fmt_in, fmt );
 460     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 461
 462     /* Allocate our private structure for the decoder */
 463     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
 464     if( p_dec->p_owner == NULL )
 465     {
 466         msg_Err( p_dec, "out of memory" );
 467         return NULL;
 468     }
 469     p_dec->p_owner->b_own_thread = VLC_TRUE;
 470     p_dec->p_owner->i_preroll_end = -1;
 471     p_dec->p_owner->p_input = p_input;
 472     p_dec->p_owner->p_aout = NULL;
 473     p_dec->p_owner->p_aout_input = NULL;
 474     p_dec->p_owner->p_vout = NULL;
 475     p_dec->p_owner->p_spu_vout = NULL;
 476     p_dec->p_owner->i_spu_channel = 0;
 477     p_dec->p_owner->p_sout = p_input->p->p_sout;
 478     p_dec->p_owner->p_sout_input = NULL;
 479     p_dec->p_owner->p_packetizer = NULL;
 480
 481     /* decoder fifo */
 482     if( ( p_dec->p_owner->p_fifo = block_FifoNew( p_dec ) ) == NULL )
 483     {
 484         msg_Err( p_dec, "out of memory" );
 485         return NULL;
 486     }
 487
 488     /* Set buffers allocation callbacks for the decoders */
 489     p_dec->pf_aout_buffer_new = aout_new_buffer;
 490     p_dec->pf_aout_buffer_del = aout_del_buffer;
 491     p_dec->pf_vout_buffer_new = vout_new_buffer;
 492     p_dec->pf_vout_buffer_del = vout_del_buffer;
 493     p_dec->pf_picture_link    = vout_link_picture;
 494     p_dec->pf_picture_unlink  = vout_unlink_picture;
 495     p_dec->pf_spu_buffer_new  = spu_new_buffer;
 496     p_dec->pf_spu_buffer_del  = spu_del_buffer;
 497
 498     vlc_object_attach( p_dec, p_input );
 499
 500     /* Find a suitable decoder/packetizer module */
 501     if( i_object_type == VLC_OBJECT_DECODER )
 502         p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
 503     else
 504         p_dec->p_module = module_Need( p_dec, "packetizer", "$packetizer", 0 );
 505
 506     /* Check if decoder requires already packetized data */
 507     if( i_object_type == VLC_OBJECT_DECODER &&
 508         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
 509     {
 510         p_dec->p_owner->p_packetizer =
 511             vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
 512         if( p_dec->p_owner->p_packetizer )
 513         {
 514             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
 515                             &p_dec->fmt_in );
 516
 517             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
 518                             &null_es_format );
 519
 520             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
 521
 522             p_dec->p_owner->p_packetizer->p_module =
 523                 module_Need( p_dec->p_owner->p_packetizer,
 524                              "packetizer", "$packetizer", 0 );
 525
 526             if( !p_dec->p_owner->p_packetizer->p_module )
 527             {
 528                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
 529                 vlc_object_detach( p_dec->p_owner->p_packetizer );
 530                 vlc_object_release( p_dec->p_owner->p_packetizer );
 531             }
 532         }
 533     }
 534
 535     /* Copy ourself the input replay gain */
 536     if( fmt->i_cat == AUDIO_ES )
 537     {
 538         for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
 539         {
 540             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
 541             {
 542                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
 543                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
 544             }
 545             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
 546             {
 547                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
 548                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
 549             }
 550         }
 551     }
 552     /* */
 553     p_owner->b_cc_supported = VLC_FALSE;
 554     if( i_object_type == VLC_OBJECT_DECODER )
 555     {
 556         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
 557             p_owner->b_cc_supported = VLC_TRUE;
 558         if( p_dec->pf_get_cc )
 559             p_owner->b_cc_supported = VLC_TRUE;
 560     }
 561
 562     vlc_mutex_init( p_dec, &p_owner->lock_cc );
 563     for( i = 0; i < 4; i++ )
 564     {
 565         p_owner->pb_cc_present[i] = VLC_FALSE;
 566         p_owner->pp_cc[i] = NULL;
 567     }
 568     return p_dec;
 569 }
 570
 571 /**
 572  * The decoding main loop
 573  *
 574  * \param p_dec the decoder
 575  * \return 0
 576  */
 577 static int DecoderThread( decoder_t * p_dec )
 578 {
 579     block_t *p_block;
 580
 581     /* The decoder's main loop */
 582     while( !p_dec->b_die && !p_dec->b_error )
 583     {
 584         if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
 585         {
 586             p_dec->b_error = 1;
 587             break;
 588         }
 589         if( DecoderDecode( p_dec, p_block ) != VLC_SUCCESS )
 590         {
 591             break;
 592         }
 593     }
 594
 595     while( !p_dec->b_die )
 596     {
 597         /* Trash all received PES packets */
 598         p_block = block_FifoGet( p_dec->p_owner->p_fifo );
 599         if( p_block ) block_Release( p_block );
 600     }
 601
 602     /* We do it here because of the dll loader that wants close() in the
 603      * same thread than open()/decode() */
 604     module_Unneed( p_dec, p_dec->p_module );
 605
 606     return 0;
 607 }
 608
 609 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
 610 {
 611     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
 612         *pi_preroll = INT64_MAX;
 613     else if( p->i_pts > 0 )
 614         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
 615     else if( p->i_dts > 0 )
 616         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
 617 }
 618 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
 619 {
 620     input_thread_t *p_input = p_dec->p_owner->p_input;
 621     const int i_rate = p_block->i_rate;
 622     aout_buffer_t *p_aout_buf;
 623
 624     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
 625     {
 626         vlc_mutex_lock( &p_input->p->counters.counters_lock );
 627         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio, 1, NULL );
 628         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
 629
 630         if( p_aout_buf->start_date < p_dec->p_owner->i_preroll_end )
 631         {
 632             aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
 633                                   p_dec->p_owner->p_aout_input, p_aout_buf );
 634             continue;
 635         }
 636
 637         if( p_dec->p_owner->i_preroll_end > 0 )
 638         {
 639             /* FIXME TODO flush audio output (don't know how to do that) */
 640             msg_Dbg( p_dec, "End of audio preroll" );
 641             p_dec->p_owner->i_preroll_end = -1;
 642         }
 643         aout_DecPlay( p_dec->p_owner->p_aout,
 644                       p_dec->p_owner->p_aout_input,
 645                       p_aout_buf, i_rate );
 646     }
 647 }
 648 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
 649 {
 650     block_t *p_cc;
 651     vlc_bool_t pb_present[4];
 652     int i;
 653     int i_cc_decoder;
 654
 655     assert( p_dec_cc->pf_get_cc != NULL );
 656
 657     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
 658     if( !p_dec->p_owner->b_cc_supported )
 659         return;
 660
 661     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
 662     if( !p_cc )
 663         return;
 664
 665     vlc_mutex_lock( &p_dec->p_owner->lock_cc );
 666     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
 667     {
 668         p_dec->p_owner->pb_cc_present[i] |= pb_present[i];
 669         if( p_dec->p_owner->pp_cc[i] )
 670             i_cc_decoder++;
 671     }
 672
 673     for( i = 0; i < 4; i++ )
 674     {
 675         if( !p_dec->p_owner->pp_cc[i] )
 676             continue;
 677
 678         if( i_cc_decoder > 1 )
 679             DecoderDecode( p_dec->p_owner->pp_cc[i], block_Duplicate( p_cc ) );
 680         else
 681             DecoderDecode( p_dec->p_owner->pp_cc[i], p_cc );
 682         i_cc_decoder--;
 683     }
 684     vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
 685 }
 686 static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
 687 {
 688     vlc_mutex_lock( &p_vout->picture_lock );
 689
 690     if( p_pic->i_status == READY_PICTURE )
 691     {
 692         /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
 693         p_pic->date = 1;
 694     }
 695     else if( p_pic->i_refcount > 0 )
 696     {
 697         p_pic->i_status = DISPLAYED_PICTURE;
 698     }
 699     else
 700     {
 701         p_pic->i_status = DESTROYED_PICTURE;
 702         p_vout->i_heap_size--;
 703     }
 704
 705     vlc_mutex_unlock( &p_vout->picture_lock );
 706 }
 707 static void VoutFlushPicture( vout_thread_t *p_vout )
 708 {
 709     int i;
 710     vlc_mutex_lock( &p_vout->picture_lock );
 711     for( i = 0; i < p_vout->render.i_pictures; i++ )
 712     {
 713         picture_t *p_pic = p_vout->render.pp_picture[i];
 714
 715         if( p_pic->i_status == READY_PICTURE ||
 716             p_pic->i_status == DISPLAYED_PICTURE )
 717         {
 718             /* We cannot change picture status if it is in READY_PICTURE state,
 719              * Just make sure they won't be displayed */
 720             p_pic->date = 1;
 721         }
 722     }
 723     vlc_mutex_unlock( &p_vout->picture_lock );
 724 }
 725 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
 726 {
 727     input_thread_t *p_input = p_dec->p_owner->p_input;
 728     picture_t *p_pic;
 729
 730     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
 731     {
 732         vlc_mutex_lock( &p_input->p->counters.counters_lock );
 733         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video, 1, NULL );
 734         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
 735
 736         if( p_pic->date < p_dec->p_owner->i_preroll_end )
 737         {
 738             VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
 739             continue;
 740         }
 741
 742         if( p_dec->p_owner->i_preroll_end > 0 )
 743         {
 744             msg_Dbg( p_dec, "End of video preroll" );
 745             if( p_dec->p_owner->p_vout )
 746                 VoutFlushPicture( p_dec->p_owner->p_vout );
 747             /* */
 748             p_dec->p_owner->i_preroll_end = -1;
 749         }
 750
 751         if( ( !p_dec->p_owner->p_packetizer || !p_dec->p_owner->p_packetizer->pf_get_cc ) && p_dec->pf_get_cc )
 752             DecoderGetCc( p_dec, p_dec );
 753
 754         vout_DatePicture( p_dec->p_owner->p_vout, p_pic,
 755                           p_pic->date );
 756         vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
 757     }
 758 }
 759
 760 /**
 761  * Decode a block
 762  *
 763  * \param p_dec the decoder object
 764  * \param p_block the block to decode
 765  * \return VLC_SUCCESS or an error code
 766  */
 767 static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
 768 {
 769     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
 770     const int i_rate = p_block ? p_block->i_rate : INPUT_RATE_DEFAULT;
 771
 772     if( p_block && p_block->i_buffer <= 0 )
 773     {
 774         block_Release( p_block );
 775         return VLC_SUCCESS;
 776     }
 777
 778     if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
 779     {
 780         block_t *p_sout_block;
 781
 782         while( ( p_sout_block =
 783                      p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
 784         {
 785             if( !p_dec->p_owner->p_sout_input )
 786             {
 787                 es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
 788
 789                 p_dec->p_owner->sout.i_group = p_dec->fmt_in.i_group;
 790                 p_dec->p_owner->sout.i_id = p_dec->fmt_in.i_id;
 791                 if( p_dec->fmt_in.psz_language )
 792                 {
 793                     if( p_dec->p_owner->sout.psz_language )
 794                         free( p_dec->p_owner->sout.psz_language );
 795                     p_dec->p_owner->sout.psz_language =
 796                         strdup( p_dec->fmt_in.psz_language );
 797                 }
 798
 799                 p_dec->p_owner->p_sout_input =
 800                     sout_InputNew( p_dec->p_owner->p_sout,
 801                                    &p_dec->p_owner->sout );
 802
 803                 if( p_dec->p_owner->p_sout_input == NULL )
 804                 {
 805                     msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
 806                              (char *)&p_dec->p_owner->sout.i_codec );
 807                     p_dec->b_error = VLC_TRUE;
 808
 809                     while( p_sout_block )
 810                     {
 811                         block_t *p_next = p_sout_block->p_next;
 812                         block_Release( p_sout_block );
 813                         p_sout_block = p_next;
 814                     }
 815                     break;
 816                 }
 817             }
 818
 819             while( p_sout_block )
 820             {
 821                 block_t *p_next = p_sout_block->p_next;
 822
 823                 p_sout_block->p_next = NULL;
 824                 p_sout_block->i_rate = i_rate;
 825
 826                 sout_InputSendBuffer( p_dec->p_owner->p_sout_input,
 827                                       p_sout_block );
 828
 829                 p_sout_block = p_next;
 830             }
 831
 832             /* For now it's enough, as only sout inpact on this flag */
 833             if( p_dec->p_owner->p_sout->i_out_pace_nocontrol > 0 &&
 834                 p_dec->p_owner->p_input->p->b_out_pace_control )
 835             {
 836                 msg_Dbg( p_dec, "switching to sync mode" );
 837                 p_dec->p_owner->p_input->p->b_out_pace_control = VLC_FALSE;
 838             }
 839             else if( p_dec->p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
 840                      !p_dec->p_owner->p_input->p->b_out_pace_control )
 841             {
 842                 msg_Dbg( p_dec, "switching to async mode" );
 843                 p_dec->p_owner->p_input->p->b_out_pace_control = VLC_TRUE;
 844             }
 845         }
 846     }
 847     else if( p_dec->fmt_in.i_cat == AUDIO_ES )
 848     {
 849         if( p_block )
 850             DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
 851
 852         if( p_dec->p_owner->p_packetizer )
 853         {
 854             block_t *p_packetized_block;
 855             decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
 856
 857             while( (p_packetized_block =
 858                     p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
 859             {
 860                 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
 861                 {
 862                     es_format_Clean( &p_dec->fmt_in );
 863                     es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
 864                 }
 865
 866                 while( p_packetized_block )
 867                 {
 868                     block_t *p_next = p_packetized_block->p_next;
 869                     p_packetized_block->p_next = NULL;
 870                     p_packetized_block->i_rate = i_rate;
 871
 872                     DecoderDecodeAudio( p_dec, p_packetized_block );
 873
 874                     p_packetized_block = p_next;
 875                 }
 876             }
 877         }
 878         else if( p_block )
 879         {
 880             DecoderDecodeAudio( p_dec, p_block );
 881         }
 882     }
 883     else if( p_dec->fmt_in.i_cat == VIDEO_ES )
 884     {
 885         if( p_block )
 886             DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
 887
 888         if( p_dec->p_owner->p_packetizer )
 889         {
 890             block_t *p_packetized_block;
 891             decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
 892
 893             while( (p_packetized_block =
 894                     p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
 895             {
 896                 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
 897                 {
 898                     es_format_Clean( &p_dec->fmt_in );
 899                     es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
 900                 }
 901                 if( p_packetizer->pf_get_cc )
 902                     DecoderGetCc( p_dec, p_packetizer );
 903
 904                 while( p_packetized_block )
 905                 {
 906                     block_t *p_next = p_packetized_block->p_next;
 907                     p_packetized_block->p_next = NULL;
 908                     p_packetized_block->i_rate = i_rate;
 909
 910                     DecoderDecodeVideo( p_dec, p_packetized_block );
 911
 912                     p_packetized_block = p_next;
 913                 }
 914             }
 915         }
 916         else if( p_block )
 917         {
 918             DecoderDecodeVideo( p_dec, p_block );
 919         }
 920     }
 921     else if( p_dec->fmt_in.i_cat == SPU_ES )
 922     {
 923         input_thread_t *p_input = p_dec->p_owner->p_input;
 924         vout_thread_t *p_vout;
 925         subpicture_t *p_spu;
 926
 927         if( p_block )
 928             DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
 929
 930         while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
 931         {
 932             vlc_mutex_lock( &p_input->p->counters.counters_lock );
 933             stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
 934             vlc_mutex_unlock( &p_input->p->counters.counters_lock );
 935
 936             p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
 937             if( p_vout && p_sys->p_spu_vout == p_vout )
 938             {
 939                 /* Prerool does not work very well with subtitle */
 940                 if( p_spu->i_start < p_dec->p_owner->i_preroll_end &&
 941                     ( p_spu->i_stop <= 0 || p_spu->i_stop < p_dec->p_owner->i_preroll_end ) )
 942                     spu_DestroySubpicture( p_vout->p_spu, p_spu );
 943                 else
 944                     spu_DisplaySubpicture( p_vout->p_spu, p_spu );
 945             }
 946             else
 947             {
 948                 msg_Warn( p_dec, "no vout found, leaking subpicture" );
 949             }
 950             if( p_vout )
 951                 vlc_object_release( p_vout );
 952         }
 953     }
 954     else
 955     {
 956         msg_Err( p_dec, "unknown ES format" );
 957         p_dec->b_error = 1;
 958     }
 959
 960     return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
 961 }
 962
 963 /**
 964  * Destroys a decoder object
 965  *
 966  * \param p_dec the decoder object
 967  * \return nothing
 968  */
 969 static void DeleteDecoder( decoder_t * p_dec )
 970 {
 971     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
 972              (char*)&p_dec->fmt_in.i_codec,
 973              (unsigned)block_FifoCount( p_dec->p_owner->p_fifo ) );
 974
 975     /* Free all packets still in the decoder fifo. */
 976     block_FifoEmpty( p_dec->p_owner->p_fifo );
 977     block_FifoRelease( p_dec->p_owner->p_fifo );
 978
 979     /* Cleanup */
 980     if( p_dec->p_owner->p_aout_input )
 981         aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
 982
 983     if( p_dec->p_owner->p_vout )
 984     {
 985         int i_pic;
 986
 987 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
 988         /* Hack to make sure all the the pictures are freed by the decoder */
 989         for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
 990              i_pic++ )
 991         {
 992             if( p_pic->i_status == RESERVED_PICTURE )
 993                 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
 994             if( p_pic->i_refcount > 0 )
 995                 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
 996         }
 997 #undef p_pic
 998
 999         /* We are about to die. Reattach video output to p_vlc. */
1000         vout_Request( p_dec, p_dec->p_owner->p_vout, 0 );
1001     }
1002
1003     if( p_dec->p_owner->p_sout_input )
1004     {
1005         sout_InputDelete( p_dec->p_owner->p_sout_input );
1006         es_format_Clean( &p_dec->p_owner->sout );
1007     }
1008
1009     if( p_dec->fmt_in.i_cat == SPU_ES )
1010     {
1011         vout_thread_t *p_vout;
1012
1013         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1014         if( p_vout )
1015         {
1016             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1017                          p_dec->p_owner->i_spu_channel );
1018             vlc_object_release( p_vout );
1019         }
1020     }
1021
1022     es_format_Clean( &p_dec->fmt_in );
1023     es_format_Clean( &p_dec->fmt_out );
1024
1025     if( p_dec->p_owner->p_packetizer )
1026     {
1027         module_Unneed( p_dec->p_owner->p_packetizer,
1028                        p_dec->p_owner->p_packetizer->p_module );
1029         es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
1030         es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_out );
1031         vlc_object_detach( p_dec->p_owner->p_packetizer );
1032         vlc_object_release( p_dec->p_owner->p_packetizer );
1033     }
1034
1035     vlc_mutex_destroy( &p_dec->p_owner->lock_cc );
1036
1037     vlc_object_detach( p_dec );
1038
1039     free( p_dec->p_owner );
1040 }
1041
1042 /*****************************************************************************
1043  * Buffers allocation callbacks for the decoders
1044  *****************************************************************************/
1045 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1046 {
1047     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1048     aout_buffer_t *p_buffer;
1049
1050     if( p_sys->p_aout_input != NULL &&
1051         ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
1052           p_dec->fmt_out.audio.i_original_channels !=
1053               p_sys->audio.i_original_channels ||
1054           p_dec->fmt_out.audio.i_bytes_per_frame !=
1055               p_sys->audio.i_bytes_per_frame ) )
1056     {
1057         /* Parameters changed, restart the aout */
1058         aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
1059         p_sys->p_aout_input = NULL;
1060     }
1061
1062     if( p_sys->p_aout_input == NULL )
1063     {
1064         audio_sample_format_t format;
1065         int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1066
1067         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1068         p_sys->audio = p_dec->fmt_out.audio;
1069
1070         memcpy( &format, &p_sys->audio, sizeof( audio_sample_format_t ) );
1071         if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1072                                     == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1073         {
1074             if ( i_force_dolby == 1 )
1075             {
1076                 format.i_original_channels = format.i_original_channels |
1077                                              AOUT_CHAN_DOLBYSTEREO;
1078             }
1079             else /* i_force_dolby == 2 */
1080             {
1081                 format.i_original_channels = format.i_original_channels &
1082                                              ~AOUT_CHAN_DOLBYSTEREO;
1083             }
1084         }
1085
1086         p_sys->p_aout_input =
1087             aout_DecNew( p_dec, &p_sys->p_aout, &format, &p_dec->fmt_out.audio_replay_gain );
1088         if( p_sys->p_aout_input == NULL )
1089         {
1090             msg_Err( p_dec, "failed to create audio output" );
1091             p_dec->b_error = VLC_TRUE;
1092             return NULL;
1093         }
1094         p_dec->fmt_out.audio.i_bytes_per_frame =
1095             p_sys->audio.i_bytes_per_frame;
1096     }
1097
1098     p_buffer = aout_DecNewBuffer( p_sys->p_aout_input, i_samples );
1099
1100     return p_buffer;
1101 }
1102
1103 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1104 {
1105     aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
1106                           p_dec->p_owner->p_aout_input, p_buffer );
1107 }
1108
1109 static picture_t *vout_new_buffer( decoder_t *p_dec )
1110 {
1111     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1112     picture_t *p_pic;
1113
1114     if( p_sys->p_vout == NULL ||
1115         p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
1116         p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
1117         p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
1118         p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
1119     {
1120         if( !p_dec->fmt_out.video.i_width ||
1121             !p_dec->fmt_out.video.i_height )
1122         {
1123             /* Can't create a new vout without display size */
1124             return NULL;
1125         }
1126
1127         if( !p_dec->fmt_out.video.i_visible_width ||
1128             !p_dec->fmt_out.video.i_visible_height )
1129         {
1130             if( p_dec->fmt_in.video.i_visible_width &&
1131                 p_dec->fmt_in.video.i_visible_height )
1132             {
1133                 p_dec->fmt_out.video.i_visible_width =
1134                     p_dec->fmt_in.video.i_visible_width;
1135                 p_dec->fmt_out.video.i_visible_height =
1136                     p_dec->fmt_in.video.i_visible_height;
1137             }
1138             else
1139             {
1140                 p_dec->fmt_out.video.i_visible_width =
1141                     p_dec->fmt_out.video.i_width;
1142                 p_dec->fmt_out.video.i_visible_height =
1143                     p_dec->fmt_out.video.i_height;
1144             }
1145         }
1146
1147         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1148             var_CreateGetBool( p_dec, "hdtv-fix" ) )
1149         {
1150             p_dec->fmt_out.video.i_visible_height = 1080;
1151             p_dec->fmt_out.video.i_sar_num *= 135;
1152             p_dec->fmt_out.video.i_sar_den *= 136;
1153             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
1154         }
1155
1156         if( !p_dec->fmt_out.video.i_sar_num ||
1157             !p_dec->fmt_out.video.i_sar_den )
1158         {
1159             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
1160               p_dec->fmt_out.video.i_visible_height;
1161
1162             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
1163               p_dec->fmt_out.video.i_visible_width;
1164         }
1165
1166         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
1167                      &p_dec->fmt_out.video.i_sar_den,
1168                      p_dec->fmt_out.video.i_sar_num,
1169                      p_dec->fmt_out.video.i_sar_den, 50000 );
1170
1171         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1172         p_sys->video = p_dec->fmt_out.video;
1173
1174         p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
1175                                       &p_dec->fmt_out.video );
1176         if( p_sys->p_vout == NULL )
1177         {
1178             msg_Err( p_dec, "failed to create video output" );
1179             p_dec->b_error = VLC_TRUE;
1180             return NULL;
1181         }
1182
1183         if( p_sys->video.i_rmask )
1184             p_sys->p_vout->render.i_rmask = p_sys->video.i_rmask;
1185         if( p_sys->video.i_gmask )
1186             p_sys->p_vout->render.i_gmask = p_sys->video.i_gmask;
1187         if( p_sys->video.i_bmask )
1188             p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
1189     }
1190
1191     /* Get a new picture */
1192     while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
1193     {
1194         int i_pic, i_ready_pic = 0;
1195
1196         if( p_dec->b_die || p_dec->b_error )
1197         {
1198             return NULL;
1199         }
1200
1201 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1202         /* Check the decoder doesn't leak pictures */
1203         for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1204              i_pic++ )
1205         {
1206             if( p_pic->i_status == READY_PICTURE )
1207             {
1208                 if( i_ready_pic++ > 0 ) break;
1209                 else continue;
1210             }
1211
1212             if( p_pic->i_status != DISPLAYED_PICTURE &&
1213                 p_pic->i_status != RESERVED_PICTURE &&
1214                 p_pic->i_status != READY_PICTURE ) break;
1215
1216             if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
1217                 break;
1218         }
1219         if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
1220         {
1221             msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
1222
1223             /* Just free all the pictures */
1224             for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1225                  i_pic++ )
1226             {
1227                 if( p_pic->i_status == RESERVED_PICTURE )
1228                     vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1229                 if( p_pic->i_refcount > 0 )
1230                 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1231             }
1232         }
1233 #undef p_pic
1234
1235         msleep( VOUT_OUTMEM_SLEEP );
1236     }
1237
1238     return p_pic;
1239 }
1240
1241 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
1242 {
1243     VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
1244 }
1245
1246 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
1247 {
1248     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
1249 }
1250
1251 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
1252 {
1253     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1254 }
1255
1256 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1257 {
1258     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1259     vout_thread_t *p_vout = NULL;
1260     subpicture_t *p_subpic;
1261     int i_attempts = 30;
1262
1263     while( i_attempts-- )
1264     {
1265         if( p_dec->b_die || p_dec->b_error ) break;
1266
1267         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1268         if( p_vout ) break;
1269
1270         msleep( VOUT_DISPLAY_DELAY );
1271     }
1272
1273     if( !p_vout )
1274     {
1275         msg_Warn( p_dec, "no vout found, dropping subpicture" );
1276         return NULL;
1277     }
1278
1279     if( p_sys->p_spu_vout != p_vout )
1280     {
1281         spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
1282                      &p_sys->i_spu_channel );
1283         p_sys->p_spu_vout = p_vout;
1284     }
1285
1286     p_subpic = spu_CreateSubpicture( p_vout->p_spu );
1287     if( p_subpic )
1288     {
1289         p_subpic->i_channel = p_sys->i_spu_channel;
1290     }
1291
1292     vlc_object_release( p_vout );
1293
1294     return p_subpic;
1295 }
1296
1297 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1298 {
1299     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1300     vout_thread_t *p_vout = NULL;
1301
1302     p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1303     if( !p_vout || p_sys->p_spu_vout != p_vout )
1304     {
1305         if( p_vout )
1306             vlc_object_release( p_vout );
1307         msg_Warn( p_dec, "no vout found, leaking subpicture" );
1308         return;
1309     }
1310
1311     spu_DestroySubpicture( p_vout->p_spu, p_subpic );
1312
1313     vlc_object_release( p_vout );
1314 }
1315