Sanitize input headers (pass 4).
[vlc.git] / src / input / decoder.c
1 /*****************************************************************************
2  * decoder.c: Functions for the management of decoders
3  *****************************************************************************
4  * Copyright (C) 1999-2004 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
8  *          Gildas Bazin <gbazin@videolan.org>
9  *          Laurent Aimar <fenrir@via.ecp.fr>
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24  *****************************************************************************/
25
26 /*****************************************************************************
27  * Preamble
28  *****************************************************************************/
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32 #include <assert.h>
33
34 #include <vlc_common.h>
35
36 #include <vlc_block.h>
37 #include <vlc_vout.h>
38 #include <vlc_aout.h>
39 #include <vlc_sout.h>
40 #include <vlc_codec.h>
41 #include <vlc_osd.h>
42
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 #include "clock.h"
48 #include "decoder.h"
49
50 #include "../video_output/vout_internal.h"
51
52 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
53 static void       DeleteDecoder( decoder_t * );
54
55 static void      *DecoderThread( vlc_object_t * );
56 static int        DecoderProcess( decoder_t *, block_t * );
57 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
58 static void       DecoderFlush( decoder_t * );
59 static void       DecoderSignalBuffering( decoder_t *, bool );
60 static void       DecoderFlushBuffering( decoder_t * );
61
62 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
63
64 /* Buffers allocation callbacks for the decoders */
65 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
66 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
67
68 static picture_t *vout_new_buffer( decoder_t * );
69 static void vout_del_buffer( decoder_t *, picture_t * );
70 static void vout_link_picture( decoder_t *, picture_t * );
71 static void vout_unlink_picture( decoder_t *, picture_t * );
72
73 static subpicture_t *spu_new_buffer( decoder_t * );
74 static void spu_del_buffer( decoder_t *, subpicture_t * );
75
76 static es_format_t null_es_format;
77
78 struct decoder_owner_sys_t
79 {
80     int64_t         i_preroll_end;
81
82     input_thread_t  *p_input;
83     input_clock_t   *p_clock;
84     int             i_last_rate;
85
86     vout_thread_t   *p_spu_vout;
87     int              i_spu_channel;
88     int64_t          i_spu_order;
89
90     sout_instance_t         *p_sout;
91     sout_packetizer_input_t *p_sout_input;
92
93     /* Some decoders require already packetized data (ie. not truncated) */
94     decoder_t *p_packetizer;
95
96     /* Current format in use by the output */
97     video_format_t video;
98     audio_format_t audio;
99     es_format_t    sout;
100
101     /* fifo */
102     block_fifo_t *p_fifo;
103
104     /* Lock for communication with decoder thread */
105     vlc_mutex_t lock;
106     vlc_cond_t  wait;
107
108     /* -- These variables need locking on write(only) -- */
109     aout_instance_t *p_aout;
110     aout_input_t    *p_aout_input;
111
112     vout_thread_t   *p_vout;
113
114     /* -- Theses variables need locking on read *and* write -- */
115     /* */
116     /* Pause */
117     bool b_paused;
118     struct
119     {
120         mtime_t i_date;
121     } pause;
122
123     /* Buffering */
124     bool b_buffering;
125     struct
126     {
127         bool b_first;
128         bool b_full;
129         int  i_count;
130
131         picture_t     *p_picture;
132         picture_t     **pp_picture_next;
133
134         subpicture_t  *p_subpic;
135         subpicture_t  **pp_subpic_next;
136
137         aout_buffer_t *p_audio;
138         aout_buffer_t **pp_audio_next;
139     } buffer;
140
141     /* Flushing */
142     bool b_flushing;
143
144     /* CC */
145     struct
146     {
147         bool b_supported;
148         bool pb_present[4];
149         decoder_t *pp_decoder[4];
150     } cc;
151
152     /* Delay */
153     mtime_t i_ts_delay;
154 };
155
156 #define DECODER_MAX_BUFFERING_COUNT (4)
157 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
158 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
159
160 /*****************************************************************************
161  * Public functions
162  *****************************************************************************/
163
164 /* decoder_GetInputAttachment:
165  */
166 input_attachment_t *decoder_GetInputAttachment( decoder_t *p_dec,
167                                                 const char *psz_name )
168 {
169     input_attachment_t *p_attachment;
170     if( input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENT, &p_attachment, psz_name ) )
171         return NULL;
172     return p_attachment;
173 }
174 /* decoder_GetInputAttachments:
175  */
176 int decoder_GetInputAttachments( decoder_t *p_dec,
177                                  input_attachment_t ***ppp_attachment,
178                                  int *pi_attachment )
179 {
180     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
181                           ppp_attachment, pi_attachment );
182 }
183 /* decoder_GetDisplayDate:
184  */
185 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
186 {
187     decoder_owner_sys_t *p_owner = p_dec->p_owner;
188
189     vlc_mutex_lock( &p_owner->lock );
190     if( p_owner->b_buffering )
191         i_ts = 0;
192     vlc_mutex_unlock( &p_owner->lock );
193
194     if( !p_owner->p_clock || !i_ts )
195         return i_ts;
196
197     return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
198 }
199 /* decoder_GetDisplayRate:
200  */
201 int decoder_GetDisplayRate( decoder_t *p_dec )
202 {
203     decoder_owner_sys_t *p_owner = p_dec->p_owner;
204
205     if( !p_owner->p_clock )
206         return INPUT_RATE_DEFAULT;
207     return input_clock_GetRate( p_owner->p_clock );
208 }
209
210 /**
211  * Spawns a new decoder thread
212  *
213  * \param p_input the input thread
214  * \param p_es the es descriptor
215  * \return the spawned decoder object
216  */
217 decoder_t *input_DecoderNew( input_thread_t *p_input,
218                              es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout  )
219 {
220     decoder_t *p_dec = NULL;
221     int i_priority;
222
223 #ifndef ENABLE_SOUT
224     (void)b_force_decoder;
225 #else
226     /* If we are in sout mode, search for packetizer module */
227     if( p_sout )
228     {
229         /* Create the decoder configuration structure */
230         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
231         if( p_dec == NULL )
232         {
233             msg_Err( p_input, "could not create packetizer" );
234             intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
235                             _("VLC could not open the packetizer module.") );
236             return NULL;
237         }
238     }
239     else
240 #endif
241     {
242         /* Create the decoder configuration structure */
243         p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
244         if( p_dec == NULL )
245         {
246             msg_Err( p_input, "could not create decoder" );
247             intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
248                             _("VLC could not open the decoder module.") );
249             return NULL;
250         }
251     }
252
253     if( !p_dec->p_module )
254     {
255         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
256
257         DeleteDecoder( p_dec );
258         vlc_object_release( p_dec );
259         return NULL;
260     }
261
262     p_dec->p_owner->p_clock = p_clock;
263
264     if( fmt->i_cat == AUDIO_ES )
265         i_priority = VLC_THREAD_PRIORITY_AUDIO;
266     else
267         i_priority = VLC_THREAD_PRIORITY_VIDEO;
268
269     /* Spawn the decoder thread */
270     if( vlc_thread_create( p_dec, "decoder", DecoderThread,
271                            i_priority, false ) )
272     {
273         msg_Err( p_dec, "cannot spawn decoder thread" );
274         module_unneed( p_dec, p_dec->p_module );
275         DeleteDecoder( p_dec );
276         vlc_object_release( p_dec );
277         return NULL;
278     }
279
280     return p_dec;
281 }
282
283 /**
284  * Kills a decoder thread and waits until it's finished
285  *
286  * \param p_input the input thread
287  * \param p_es the es descriptor
288  * \return nothing
289  */
290 void input_DecoderDelete( decoder_t *p_dec )
291 {
292     decoder_owner_sys_t *p_owner = p_dec->p_owner;
293
294     vlc_object_kill( p_dec );
295
296     /* Make sure we aren't paused anymore */
297     vlc_mutex_lock( &p_owner->lock );
298     if( p_owner->b_paused || p_owner->b_buffering )
299     {
300         p_owner->b_paused = false;
301         p_owner->b_buffering = false;
302         vlc_cond_signal( &p_owner->wait );
303     }
304     vlc_mutex_unlock( &p_owner->lock );
305
306     /* Make sure the thread leaves the function */
307     block_FifoWake( p_owner->p_fifo );
308
309     vlc_thread_join( p_dec );
310
311     /* Don't module_unneed() here because of the dll loader that wants
312      * close() in the same thread than open()/decode() */
313
314     /* */
315     if( p_dec->p_owner->cc.b_supported )
316     {
317         int i;
318         for( i = 0; i < 4; i++ )
319             input_DecoderSetCcState( p_dec, false, i );
320     }
321
322     /* Delete decoder configuration */
323     DeleteDecoder( p_dec );
324
325     /* Delete the decoder */
326     vlc_object_release( p_dec );
327 }
328
329 /**
330  * Put a block_t in the decoder's fifo.
331  *
332  * \param p_dec the decoder object
333  * \param p_block the data block
334  */
335 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
336 {
337     decoder_owner_sys_t *p_owner = p_dec->p_owner;
338
339     if( p_owner->p_input->p->b_out_pace_control )
340     {
341         /* FIXME !!!!! */
342         while( vlc_object_alive( p_dec ) && !p_dec->b_error &&
343                block_FifoCount( p_owner->p_fifo ) > 10 )
344         {
345             msleep( 1000 );
346         }
347     }
348     else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
349     {
350         /* FIXME: ideally we would check the time amount of data
351          * in the fifo instead of its size. */
352         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
353                   "consumed quickly enough), resetting fifo!" );
354         block_FifoEmpty( p_owner->p_fifo );
355     }
356
357     block_FifoPut( p_owner->p_fifo, p_block );
358 }
359
360 bool input_DecoderIsEmpty( decoder_t * p_dec )
361 {
362     assert( !p_dec->p_owner->b_buffering );
363
364     /* FIXME that's not really true */
365     return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
366 }
367
368 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
369 {
370     decoder_owner_sys_t *p_owner = p_dec->p_owner;
371     int i;
372
373     vlc_mutex_lock( &p_owner->lock );
374     for( i = 0; i < 4; i++ )
375         pb_present[i] =  p_owner->cc.pb_present[i];
376     vlc_mutex_unlock( &p_owner->lock );
377 }
378 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
379 {
380     decoder_owner_sys_t *p_owner = p_dec->p_owner;
381
382     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
383
384     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
385         return VLC_EGENERIC;
386
387     if( b_decode )
388     {
389         static const vlc_fourcc_t fcc[4] = {
390             VLC_FOURCC('c', 'c', '1', ' '),
391             VLC_FOURCC('c', 'c', '2', ' '),
392             VLC_FOURCC('c', 'c', '3', ' '),
393             VLC_FOURCC('c', 'c', '4', ' '),
394         };
395         decoder_t *p_cc;
396         es_format_t fmt;
397
398         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
399         p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
400         if( !p_cc )
401         {
402             msg_Err( p_dec, "could not create decoder" );
403             intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
404                             _("VLC could not open the decoder module.") );
405             return VLC_EGENERIC;
406         }
407         else if( !p_cc->p_module )
408         {
409             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
410             DeleteDecoder( p_cc );
411             vlc_object_release( p_cc );
412             return VLC_EGENERIC;
413         }
414         p_cc->p_owner->p_clock = p_owner->p_clock;
415
416         vlc_mutex_lock( &p_owner->lock );
417         p_owner->cc.pp_decoder[i_channel] = p_cc;
418         vlc_mutex_unlock( &p_owner->lock );
419     }
420     else
421     {
422         decoder_t *p_cc;
423
424         vlc_mutex_lock( &p_owner->lock );
425         p_cc = p_owner->cc.pp_decoder[i_channel];
426         p_owner->cc.pp_decoder[i_channel] = NULL;
427         vlc_mutex_unlock( &p_owner->lock );
428
429         if( p_cc )
430         {
431             vlc_object_kill( p_cc );
432             module_unneed( p_cc, p_cc->p_module );
433             DeleteDecoder( p_cc );
434             vlc_object_release( p_cc );
435         }
436     }
437     return VLC_SUCCESS;
438 }
439 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
440 {
441     decoder_owner_sys_t *p_owner = p_dec->p_owner;
442
443     *pb_decode = false;
444     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
445         return VLC_EGENERIC;
446
447     vlc_mutex_lock( &p_owner->lock );
448     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
449     vlc_mutex_unlock( &p_owner->lock );
450     return VLC_EGENERIC;
451 }
452
453 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
454 {
455     decoder_owner_sys_t *p_owner = p_dec->p_owner;
456
457     vlc_mutex_lock( &p_owner->lock );
458
459     assert( !p_owner->b_paused || !b_paused );
460
461     p_owner->b_paused = b_paused;
462     p_owner->pause.i_date = i_date;
463     vlc_cond_signal( &p_owner->wait );
464
465     DecoderOutputChangePause( p_dec, b_paused, i_date );
466
467     vlc_mutex_unlock( &p_owner->lock );
468 }
469
470 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
471 {
472     decoder_owner_sys_t *p_owner = p_dec->p_owner;
473
474     vlc_mutex_lock( &p_owner->lock );
475     p_owner->i_ts_delay = i_delay;
476     vlc_mutex_unlock( &p_owner->lock );
477 }
478
479 void input_DecoderStartBuffering( decoder_t *p_dec )
480 {
481     decoder_owner_sys_t *p_owner = p_dec->p_owner;
482
483     vlc_mutex_lock( &p_owner->lock );
484
485     DecoderFlush( p_dec );
486
487     p_owner->buffer.b_first = true;
488     p_owner->buffer.b_full = false;
489     p_owner->buffer.i_count = 0;
490
491     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
492
493     p_owner->buffer.p_picture = NULL;
494     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
495
496     p_owner->buffer.p_subpic = NULL;
497     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
498
499     p_owner->buffer.p_audio = NULL;
500     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
501
502     p_owner->b_buffering = true;
503
504     vlc_cond_signal( &p_owner->wait );
505
506     vlc_mutex_unlock( &p_owner->lock );
507 }
508
509 void input_DecoderStopBuffering( decoder_t *p_dec )
510 {
511     decoder_owner_sys_t *p_owner = p_dec->p_owner;
512
513     vlc_mutex_lock( &p_owner->lock );
514
515     p_owner->b_buffering = false;
516
517     vlc_cond_signal( &p_owner->wait );
518
519     vlc_mutex_unlock( &p_owner->lock );
520 }
521
522 void input_DecoderWaitBuffering( decoder_t *p_dec )
523 {
524     decoder_owner_sys_t *p_owner = p_dec->p_owner;
525
526     vlc_mutex_lock( &p_owner->lock );
527
528     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
529     {
530         block_FifoWake( p_owner->p_fifo );
531         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
532     }
533
534     vlc_mutex_unlock( &p_owner->lock );
535 }
536
537 /*****************************************************************************
538  * Internal functions
539  *****************************************************************************/
540
541 /* */
542 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
543 {
544     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
545              "VLC probably does not support this sound or video format.",
546              (char*)&codec );
547     intf_UserFatal( p_dec, false, _("No suitable decoder module"), 
548                     _("VLC does not support the audio or video format \"%4.4s\". "
549                       "Unfortunately there is no way for you to fix this."), (char*)&codec );
550 }
551
552
553 /**
554  * Create a decoder object
555  *
556  * \param p_input the input thread
557  * \param p_es the es descriptor
558  * \param i_object_type Object type as define in include/vlc_objects.h
559  * \return the decoder object
560  */
561 static decoder_t * CreateDecoder( input_thread_t *p_input,
562                                   es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
563 {
564     decoder_t *p_dec;
565     decoder_owner_sys_t *p_owner;
566     int i;
567
568     p_dec = vlc_object_create( p_input, i_object_type );
569     if( p_dec == NULL )
570         return NULL;
571
572     p_dec->pf_decode_audio = NULL;
573     p_dec->pf_decode_video = NULL;
574     p_dec->pf_decode_sub = NULL;
575     p_dec->pf_get_cc = NULL;
576     p_dec->pf_packetize = NULL;
577
578     /* Initialize the decoder fifo */
579     p_dec->p_module = NULL;
580
581     memset( &null_es_format, 0, sizeof(es_format_t) );
582     es_format_Copy( &p_dec->fmt_in, fmt );
583     es_format_Copy( &p_dec->fmt_out, &null_es_format );
584
585     /* Allocate our private structure for the decoder */
586     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
587     if( p_dec->p_owner == NULL )
588     {
589         vlc_object_release( p_dec );
590         return NULL;
591     }
592     p_dec->p_owner->i_preroll_end = -1;
593     p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
594     p_dec->p_owner->p_input = p_input;
595     p_dec->p_owner->p_aout = NULL;
596     p_dec->p_owner->p_aout_input = NULL;
597     p_dec->p_owner->p_vout = NULL;
598     p_dec->p_owner->p_spu_vout = NULL;
599     p_dec->p_owner->i_spu_channel = 0;
600     p_dec->p_owner->i_spu_order = 0;
601     p_dec->p_owner->p_sout = p_sout;
602     p_dec->p_owner->p_sout_input = NULL;
603     p_dec->p_owner->p_packetizer = NULL;
604
605     /* decoder fifo */
606     if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
607     {
608         free( p_dec->p_owner );
609         vlc_object_release( p_dec );
610         return NULL;
611     }
612
613     /* Set buffers allocation callbacks for the decoders */
614     p_dec->pf_aout_buffer_new = aout_new_buffer;
615     p_dec->pf_aout_buffer_del = aout_del_buffer;
616     p_dec->pf_vout_buffer_new = vout_new_buffer;
617     p_dec->pf_vout_buffer_del = vout_del_buffer;
618     p_dec->pf_picture_link    = vout_link_picture;
619     p_dec->pf_picture_unlink  = vout_unlink_picture;
620     p_dec->pf_spu_buffer_new  = spu_new_buffer;
621     p_dec->pf_spu_buffer_del  = spu_del_buffer;
622
623     vlc_object_attach( p_dec, p_input );
624
625     /* Find a suitable decoder/packetizer module */
626     if( i_object_type == VLC_OBJECT_DECODER )
627         p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
628     else
629         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
630
631     /* Check if decoder requires already packetized data */
632     if( i_object_type == VLC_OBJECT_DECODER &&
633         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
634     {
635         p_dec->p_owner->p_packetizer =
636             vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
637         if( p_dec->p_owner->p_packetizer )
638         {
639             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
640                             &p_dec->fmt_in );
641
642             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
643                             &null_es_format );
644
645             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
646
647             p_dec->p_owner->p_packetizer->p_module =
648                 module_need( p_dec->p_owner->p_packetizer,
649                              "packetizer", "$packetizer", 0 );
650
651             if( !p_dec->p_owner->p_packetizer->p_module )
652             {
653                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
654                 vlc_object_detach( p_dec->p_owner->p_packetizer );
655                 vlc_object_release( p_dec->p_owner->p_packetizer );
656             }
657         }
658     }
659
660     /* Copy ourself the input replay gain */
661     if( fmt->i_cat == AUDIO_ES )
662     {
663         for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
664         {
665             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
666             {
667                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
668                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
669             }
670             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
671             {
672                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
673                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
674             }
675         }
676     }
677
678     /* */
679     vlc_mutex_init( &p_owner->lock );
680     vlc_cond_init( &p_owner->wait );
681
682     p_owner->b_paused = false;
683     p_owner->pause.i_date = 0;
684
685     p_owner->b_buffering = false;
686     p_owner->buffer.b_first = true;
687     p_owner->buffer.b_full = false;
688     p_owner->buffer.i_count = 0;
689     p_owner->buffer.p_picture = NULL;
690     p_owner->buffer.p_subpic = NULL;
691     p_owner->buffer.p_audio = NULL;
692
693     p_owner->b_flushing = false;
694
695     /* */
696     p_owner->cc.b_supported = false;
697     if( i_object_type == VLC_OBJECT_DECODER )
698     {
699         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
700             p_owner->cc.b_supported = true;
701         if( p_dec->pf_get_cc )
702             p_owner->cc.b_supported = true;
703     }
704
705     for( i = 0; i < 4; i++ )
706     {
707         p_owner->cc.pb_present[i] = false;
708         p_owner->cc.pp_decoder[i] = NULL;
709     }
710     p_owner->i_ts_delay = 0;
711     return p_dec;
712 }
713
714 /**
715  * The decoding main loop
716  *
717  * \param p_dec the decoder
718  */
719 static void *DecoderThread( vlc_object_t *p_this )
720 {
721     decoder_t *p_dec = (decoder_t *)p_this;
722     decoder_owner_sys_t *p_owner = p_dec->p_owner;
723
724     int canc = vlc_savecancel();
725
726     /* The decoder's main loop */
727     while( vlc_object_alive( p_dec ) && !p_dec->b_error )
728     {
729         block_t *p_block = block_FifoGet( p_owner->p_fifo );
730
731         DecoderSignalBuffering( p_dec, p_block == NULL );
732
733         if( p_block && DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
734             break;
735     }
736
737     while( vlc_object_alive( p_dec ) )
738     {
739         block_t *p_block = block_FifoGet( p_owner->p_fifo );
740
741         DecoderSignalBuffering( p_dec, p_block == NULL );
742
743         /* Trash all received PES packets */
744         if( p_block )
745             block_Release( p_block );
746     }
747     DecoderSignalBuffering( p_dec, true );
748
749     /* We do it here because of the dll loader that wants close() in the
750      * same thread than open()/decode() */
751     module_unneed( p_dec, p_dec->p_module );
752     vlc_restorecancel( canc );
753     return NULL;
754 }
755
756 static void DecoderFlush( decoder_t *p_dec )
757 {
758     decoder_owner_sys_t *p_owner = p_dec->p_owner;
759     block_t *p_null;
760
761     vlc_assert_locked( &p_owner->lock );
762
763     /* Empty the fifo */
764     block_FifoEmpty( p_owner->p_fifo );
765
766     /* Monitor for flush end */
767     p_owner->b_flushing = true;
768     vlc_cond_signal( &p_owner->wait );
769
770     /* Send a special block */
771     p_null = block_New( p_dec, 128 );
772     if( !p_null )
773         return;
774     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
775     p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
776     if( !p_dec->fmt_in.b_packetized )
777         p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
778     memset( p_null->p_buffer, 0, p_null->i_buffer );
779
780     input_DecoderDecode( p_dec, p_null );
781
782     /* */
783     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
784         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
785 }
786
787 static void DecoderSignalFlushed( decoder_t *p_dec )
788 {
789     decoder_owner_sys_t *p_owner = p_dec->p_owner;
790
791     vlc_mutex_lock( &p_owner->lock );
792
793     if( p_owner->b_flushing )
794     {
795         p_owner->b_flushing = false;
796         vlc_cond_signal( &p_owner->wait );
797     }
798
799     vlc_mutex_unlock( &p_owner->lock );
800 }
801
802 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
803 {
804     decoder_owner_sys_t *p_owner = p_dec->p_owner;
805
806     vlc_mutex_lock( &p_owner->lock );
807
808     if( p_owner->b_buffering )
809     {
810         if( b_full )
811             p_owner->buffer.b_full = true;
812         vlc_cond_signal( &p_owner->wait );
813     }
814
815     vlc_mutex_unlock( &p_owner->lock );
816 }
817
818 static bool DecoderIsFlushing( decoder_t *p_dec )
819 {
820     decoder_owner_sys_t *p_owner = p_dec->p_owner;
821     bool b_flushing;
822
823     vlc_mutex_lock( &p_owner->lock );
824
825     b_flushing = p_owner->b_flushing;
826
827     vlc_mutex_unlock( &p_owner->lock );
828
829     return b_flushing;
830 }
831
832 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
833 {
834     decoder_owner_sys_t *p_owner = p_dec->p_owner;
835
836     vlc_assert_locked( &p_owner->lock );
837
838     while( !p_owner->b_flushing )
839     {
840         if( p_owner->b_paused && p_owner->b_buffering && !p_owner->buffer.b_full )
841             break;
842
843         if( !p_owner->b_paused && ( !p_owner->b_buffering || !p_owner->buffer.b_full ) )
844             break;
845
846         vlc_cond_wait( &p_owner->wait, &p_owner->lock );
847     }
848
849     if( pb_reject )
850         *pb_reject = p_owner->b_flushing;
851 }
852
853 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
854 {
855     decoder_owner_sys_t *p_owner = p_dec->p_owner;
856
857     vlc_assert_locked( &p_owner->lock );
858
859     /* XXX only audio and video output have to be paused.
860      * - for sout it is useless
861      * - for subs, it is done by the vout
862      */
863     if( p_dec->fmt_in.i_cat == AUDIO_ES )
864     {
865         if( p_owner->p_aout && p_owner->p_aout_input )
866             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
867                                  b_paused, i_date );
868     }
869     else if( p_dec->fmt_in.i_cat == VIDEO_ES )
870     {
871         if( p_owner->p_vout )
872             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
873     }
874 }
875 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
876 {
877     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
878         *pi_preroll = INT64_MAX;
879     else if( p->i_pts > 0 )
880         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
881     else if( p->i_dts > 0 )
882         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
883 }
884
885 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
886 {
887     mtime_t current_date = mdate();
888
889     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
890     if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
891     {
892         /* ETSI EN 300 472 Annex A : do not take into account the PTS
893          * for teletext streams. */
894         return current_date + 400000 + i_ts_delay;
895     }
896     return i_ts;
897 }
898
899 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
900                           mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
901 {
902     decoder_owner_sys_t *p_owner = p_dec->p_owner;
903     input_clock_t   *p_clock = p_owner->p_clock;
904     int i_rate = 0;
905
906     vlc_assert_locked( &p_owner->lock );
907
908     const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
909     const mtime_t i_es_delay = p_owner->i_ts_delay;
910
911     if( p_clock )
912     {
913         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
914
915         if( *pi_ts0 > 0 )
916             *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
917                                          *pi_ts0 + i_es_delay );
918         if( pi_ts1 && *pi_ts1 > 0 )
919             *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
920                                          *pi_ts1 + i_es_delay );
921
922         /* Do not create ephemere data because of rounding errors */
923         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
924             *pi_ts1 += 1;
925
926         if( i_rate <= 0 )
927             i_rate = input_clock_GetRate( p_clock ); 
928
929         if( pi_duration )
930             *pi_duration = ( *pi_duration * i_rate +
931                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
932
933         if( pi_rate )
934             *pi_rate = i_rate;
935
936         if( b_telx )
937         {
938             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
939             if( pi_ts1 && *pi_ts1 <= 0 )
940                 *pi_ts1 = *pi_ts0;
941         }
942     }
943     if( pi_delay )
944     {
945         const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
946         *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
947     }
948 }
949
950 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
951                               int *pi_played_sum, int *pi_lost_sum )
952 {
953     decoder_owner_sys_t *p_owner = p_dec->p_owner;
954     aout_instance_t *p_aout = p_owner->p_aout;
955     aout_input_t    *p_aout_input = p_owner->p_aout_input;
956
957     /* */
958     if( p_audio->start_date <= 0 )
959     {
960         msg_Warn( p_dec, "non-dated audio buffer received" );
961         *pi_lost_sum += 1;
962         aout_BufferFree( p_audio );
963         return;
964     }
965
966     /* */
967     vlc_mutex_lock( &p_owner->lock );
968
969     if( p_owner->b_buffering || p_owner->buffer.p_audio )
970     {
971         p_audio->p_next = NULL;
972
973         *p_owner->buffer.pp_audio_next = p_audio;
974         p_owner->buffer.pp_audio_next = &p_audio->p_next;
975
976         p_owner->buffer.i_count++;
977         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
978             p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
979         {
980             p_owner->buffer.b_full = true;
981             vlc_cond_signal( &p_owner->wait );
982         }
983     }
984
985     for( ;; )
986     {
987         bool b_has_more = false;
988         bool b_reject;
989         DecoderWaitUnblock( p_dec, &b_reject );
990
991         if( p_owner->b_buffering )
992         {
993             vlc_mutex_unlock( &p_owner->lock );
994             return;
995         }
996
997         /* */
998         if( p_owner->buffer.p_audio )
999         {
1000             p_audio = p_owner->buffer.p_audio;
1001
1002             p_owner->buffer.p_audio = p_audio->p_next;
1003
1004             b_has_more = p_owner->buffer.p_audio != NULL;
1005             if( !b_has_more )
1006                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1007         }
1008
1009         /* */
1010         int i_rate = INPUT_RATE_DEFAULT;
1011         mtime_t i_delay;
1012
1013         DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1014                       &i_rate, &i_delay, false );
1015
1016         vlc_mutex_unlock( &p_owner->lock );
1017
1018         /* */
1019         const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1020
1021         if( !p_aout || !p_aout_input ||
1022             p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1023             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1024             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1025             b_reject = true;
1026
1027         if( !b_reject )
1028         {
1029             /* Wait if we are too early
1030              * FIXME that's plain ugly to do it here */
1031             mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1032
1033             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1034                 *pi_played_sum += 1;
1035             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1036         }
1037         else
1038         {
1039             if( p_audio->start_date <= 0 )
1040             {
1041                 msg_Warn( p_dec, "non-dated audio buffer received" );
1042             }
1043             else if( p_audio->start_date > i_max_date )
1044             {
1045                 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1046                           p_audio->start_date - mdate() );
1047             }
1048             *pi_lost_sum += 1;
1049             aout_BufferFree( p_audio );
1050         }
1051
1052         if( !b_has_more )
1053             break;
1054
1055         vlc_mutex_lock( &p_owner->lock );
1056         if( !p_owner->buffer.p_audio )
1057         {
1058             vlc_mutex_unlock( &p_owner->lock );
1059             break;
1060         }
1061     }
1062 }
1063
1064 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1065 {
1066     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1067     input_thread_t  *p_input = p_owner->p_input;
1068     aout_buffer_t   *p_aout_buf;
1069     int i_decoded = 0;
1070     int i_lost = 0;
1071     int i_played = 0;
1072
1073     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1074     {
1075         aout_instance_t *p_aout = p_owner->p_aout;
1076         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1077         int i_lost = 0;
1078         int i_played;
1079
1080         if( p_dec->b_die )
1081         {
1082             /* It prevent freezing VLC in case of broken decoder */
1083             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1084             if( p_block )
1085                 block_Release( p_block );
1086             break;
1087         }
1088         i_decoded++;
1089
1090         if( p_aout_buf->start_date < p_owner->i_preroll_end )
1091         {
1092             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1093             continue;
1094         }
1095
1096         if( p_owner->i_preroll_end > 0 )
1097         {
1098             msg_Dbg( p_dec, "End of audio preroll" );
1099             if( p_owner->p_aout && p_owner->p_aout_input )
1100                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1101             /* */
1102             p_owner->i_preroll_end = -1;
1103         }
1104
1105         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1106     }
1107
1108     /* Update ugly stat */
1109     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1110     {
1111         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1112
1113         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1114                              i_lost, NULL );
1115         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1116                              i_played, NULL );
1117         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1118                              i_decoded, NULL );
1119
1120         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1121     }
1122 }
1123 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1124 {
1125     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1126     block_t *p_cc;
1127     bool pb_present[4];
1128     int i;
1129     int i_cc_decoder;
1130
1131     assert( p_dec_cc->pf_get_cc != NULL );
1132
1133     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1134     if( !p_owner->cc.b_supported )
1135         return;
1136
1137     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1138     if( !p_cc )
1139         return;
1140
1141     vlc_mutex_lock( &p_owner->lock );
1142     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1143     {
1144         p_owner->cc.pb_present[i] |= pb_present[i];
1145         if( p_owner->cc.pp_decoder[i] )
1146             i_cc_decoder++;
1147     }
1148
1149     for( i = 0; i < 4; i++ )
1150     {
1151         if( !p_owner->cc.pp_decoder[i] )
1152             continue;
1153
1154         if( i_cc_decoder > 1 )
1155             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1156         else
1157             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1158         i_cc_decoder--;
1159     }
1160     vlc_mutex_unlock( &p_owner->lock );
1161 }
1162 static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
1163 {
1164     vlc_mutex_lock( &p_vout->picture_lock );
1165
1166     if( p_pic->i_status == READY_PICTURE )
1167     {
1168         /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
1169         p_pic->date = 1;
1170     }
1171     else if( p_pic->i_refcount > 0 )
1172     {
1173         p_pic->i_status = DISPLAYED_PICTURE;
1174     }
1175     else
1176     {
1177         p_pic->i_status = DESTROYED_PICTURE;
1178         picture_CleanupQuant( p_pic );
1179         p_vout->i_heap_size--;
1180     }
1181
1182     vlc_mutex_unlock( &p_vout->picture_lock );
1183 }
1184 static void VoutFlushPicture( vout_thread_t *p_vout, mtime_t i_max_date )
1185 {
1186     int i;
1187     vlc_mutex_lock( &p_vout->picture_lock );
1188     for( i = 0; i < p_vout->render.i_pictures; i++ )
1189     {
1190         picture_t *p_pic = p_vout->render.pp_picture[i];
1191
1192         if( p_pic->i_status == READY_PICTURE ||
1193             p_pic->i_status == DISPLAYED_PICTURE )
1194         {
1195             /* We cannot change picture status if it is in READY_PICTURE state,
1196              * Just make sure they won't be displayed */
1197             if( p_pic->date > i_max_date )
1198                 p_pic->date = i_max_date;
1199         }
1200     }
1201     vlc_mutex_unlock( &p_vout->picture_lock );
1202 }
1203
1204 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1205                               int *pi_played_sum, int *pi_lost_sum )
1206 {
1207     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1208     vout_thread_t  *p_vout = p_owner->p_vout;
1209
1210     if( p_picture->date <= 0 )
1211     {
1212         msg_Warn( p_vout, "non-dated video buffer received" );
1213         *pi_lost_sum += 1;
1214         VoutDisplayedPicture( p_vout, p_picture );
1215         return;
1216     }
1217
1218     /* */
1219     vlc_mutex_lock( &p_owner->lock );
1220
1221     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1222     {
1223         p_picture->p_next = NULL;
1224
1225         *p_owner->buffer.pp_picture_next = p_picture;
1226         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1227
1228         p_owner->buffer.i_count++;
1229         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1230             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1231         {
1232             p_owner->buffer.b_full = true;
1233             vlc_cond_signal( &p_owner->wait );
1234         }
1235     }
1236
1237     for( ;; )
1238     {
1239         bool b_has_more = false;
1240
1241         bool b_reject;
1242         DecoderWaitUnblock( p_dec, &b_reject );
1243
1244         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1245         {
1246             vlc_mutex_unlock( &p_owner->lock );
1247             return;
1248         }
1249         bool b_buffering_first = p_owner->b_buffering;
1250
1251         /* */
1252         if( p_owner->buffer.p_picture )
1253         {
1254             p_picture = p_owner->buffer.p_picture;
1255
1256             p_owner->buffer.p_picture = p_picture->p_next;
1257
1258             b_has_more = p_owner->buffer.p_picture != NULL;
1259             if( !b_has_more )
1260                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1261         }
1262
1263         /* */
1264         int i_rate = INPUT_RATE_DEFAULT;
1265         mtime_t i_delay;
1266
1267         if( b_buffering_first )
1268         {
1269             assert( p_owner->buffer.b_first );
1270             assert( !p_owner->buffer.i_count );
1271             msg_Dbg( p_dec, "Received first picture" );
1272             p_owner->buffer.b_first = false;
1273             p_picture->date = mdate();
1274             p_picture->b_force = true;
1275             i_delay = 0;
1276             if( p_owner->p_clock )
1277                 i_rate = input_clock_GetRate( p_owner->p_clock );
1278         }
1279         else
1280         {
1281             DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1282                           &i_rate, &i_delay, false );
1283         }
1284
1285         vlc_mutex_unlock( &p_owner->lock );
1286
1287         /* */
1288         const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1289
1290         if( p_picture->date <= 0 || p_picture->date >= i_max_date )
1291             b_reject = true;
1292
1293         if( !b_reject )
1294         {
1295             if( i_rate != p_owner->i_last_rate  )
1296             {
1297                 /* Be sure to not display old picture after our own */
1298                 VoutFlushPicture( p_vout, p_picture->date );
1299                 p_owner->i_last_rate = i_rate;
1300             }
1301
1302             vout_DatePicture( p_vout, p_picture, p_picture->date );
1303
1304             vout_DisplayPicture( p_vout, p_picture );
1305         }
1306         else
1307         {
1308             if( p_picture->date <= 0 )
1309             {
1310                 msg_Warn( p_vout, "non-dated video buffer received" );
1311             }
1312             else
1313             {
1314                 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1315                           p_picture->date - mdate() );
1316             }
1317             *pi_lost_sum += 1;
1318             VoutDisplayedPicture( p_vout, p_picture );
1319         }
1320         int i_tmp_display;
1321         int i_tmp_lost;
1322         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1323
1324         *pi_played_sum += i_tmp_display;
1325         *pi_lost_sum += i_tmp_lost;
1326
1327         if( !b_has_more || b_buffering_first )
1328             break;
1329
1330         vlc_mutex_lock( &p_owner->lock );
1331         if( !p_owner->buffer.p_picture )
1332         {
1333             vlc_mutex_unlock( &p_owner->lock );
1334             break;
1335         }
1336     }
1337 }
1338
1339 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1340 {
1341     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1342     input_thread_t *p_input = p_owner->p_input;
1343     picture_t      *p_pic;
1344     int i_lost = 0;
1345     int i_decoded = 0;
1346     int i_displayed = 0;
1347
1348     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1349     {
1350         vout_thread_t  *p_vout = p_owner->p_vout;
1351         if( p_dec->b_die )
1352         {
1353             /* It prevent freezing VLC in case of broken decoder */
1354             VoutDisplayedPicture( p_vout, p_pic );
1355             if( p_block )
1356                 block_Release( p_block );
1357             break;
1358         }
1359
1360         i_decoded++;
1361
1362         if( p_pic->date < p_owner->i_preroll_end )
1363         {
1364             VoutDisplayedPicture( p_vout, p_pic );
1365             continue;
1366         }
1367
1368         if( p_owner->i_preroll_end > 0 )
1369         {
1370             msg_Dbg( p_dec, "End of video preroll" );
1371             if( p_vout )
1372                 VoutFlushPicture( p_vout, 1 );
1373             /* */
1374             p_owner->i_preroll_end = -1;
1375         }
1376
1377         if( p_dec->pf_get_cc &&
1378             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1379             DecoderGetCc( p_dec, p_dec );
1380
1381         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1382     }
1383     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1384     {
1385         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1386
1387         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1388                              i_decoded, NULL );
1389         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1390                              i_lost , NULL);
1391
1392         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1393                              i_displayed, NULL);
1394
1395         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1396     }
1397 }
1398
1399 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1400                             bool b_telx )
1401 {
1402     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1403     vout_thread_t *p_vout = p_owner->p_spu_vout;
1404
1405     /* */
1406     if( p_subpic->i_start <= 0 )
1407     {
1408         msg_Warn( p_dec, "non-dated spu buffer received" );
1409         subpicture_Delete( p_subpic );
1410         return;
1411     }
1412
1413     /* */
1414     vlc_mutex_lock( &p_owner->lock );
1415
1416     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1417     {
1418         p_subpic->p_next = NULL;
1419
1420         *p_owner->buffer.pp_subpic_next = p_subpic;
1421         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1422
1423         p_owner->buffer.i_count++;
1424         /* XXX it is important to be full after the first one */
1425         if( p_owner->buffer.i_count > 0 )
1426         {
1427             p_owner->buffer.b_full = true;
1428             vlc_cond_signal( &p_owner->wait );
1429         }
1430     }
1431
1432     for( ;; )
1433     {
1434         bool b_has_more = false;
1435         bool b_reject;
1436         DecoderWaitUnblock( p_dec, &b_reject );
1437
1438         if( p_owner->b_buffering )
1439         {
1440             vlc_mutex_unlock( &p_owner->lock );
1441             return;
1442         }
1443
1444         /* */
1445         if( p_owner->buffer.p_subpic )
1446         {
1447             p_subpic = p_owner->buffer.p_subpic;
1448
1449             p_owner->buffer.p_subpic = p_subpic->p_next;
1450
1451             b_has_more = p_owner->buffer.p_subpic != NULL;
1452             if( !b_has_more )
1453                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1454         }
1455
1456         /* */
1457         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1458                       NULL, NULL, b_telx );
1459
1460         vlc_mutex_unlock( &p_owner->lock );
1461
1462         if( !b_reject )
1463             spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1464         else
1465             subpicture_Delete( p_subpic );
1466
1467         if( !b_has_more )
1468             break;
1469         vlc_mutex_lock( &p_owner->lock );
1470         if( !p_owner->buffer.p_subpic )
1471         {
1472             vlc_mutex_unlock( &p_owner->lock );
1473             break;
1474         }
1475     }
1476 }
1477
1478 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1479                              bool b_telx )
1480 {
1481     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1482
1483     assert( p_owner->p_clock );
1484
1485     vlc_mutex_lock( &p_owner->lock );
1486
1487     bool b_reject;
1488     DecoderWaitUnblock( p_dec, &b_reject );
1489
1490     DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1491                   &p_sout_block->i_rate, NULL, b_telx );
1492
1493     vlc_mutex_unlock( &p_owner->lock );
1494
1495     sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1496 }
1497
1498 /* */
1499 static void DecoderFlushBuffering( decoder_t *p_dec )
1500 {
1501     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1502
1503     vlc_assert_locked( &p_owner->lock );
1504
1505     while( p_owner->buffer.p_picture )
1506     {
1507         picture_t *p_picture = p_owner->buffer.p_picture;
1508
1509         p_owner->buffer.p_picture = p_picture->p_next;
1510         p_owner->buffer.i_count--;
1511
1512         if( p_owner->p_vout )
1513             VoutDisplayedPicture( p_owner->p_vout, p_picture );
1514
1515         if( !p_owner->buffer.p_picture )
1516             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1517     }
1518     while( p_owner->buffer.p_audio )
1519     {
1520         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1521
1522         p_owner->buffer.p_audio = p_audio->p_next;
1523         p_owner->buffer.i_count--;
1524
1525         aout_BufferFree( p_audio );
1526
1527         if( !p_owner->buffer.p_audio )
1528             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1529     }
1530     while( p_owner->buffer.p_subpic )
1531     {
1532         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1533
1534         p_owner->buffer.p_subpic = p_subpic->p_next;
1535         p_owner->buffer.i_count--;
1536
1537         subpicture_Delete( p_subpic );
1538
1539         if( !p_owner->buffer.p_subpic )
1540             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1541     }
1542 }
1543
1544 /* This function process a block for sout
1545  */
1546 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1547 {
1548     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1549     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1550     block_t *p_sout_block;
1551
1552     while( ( p_sout_block =
1553                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1554     {
1555         if( !p_owner->p_sout_input )
1556         {
1557             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1558
1559             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1560             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1561             if( p_dec->fmt_in.psz_language )
1562             {
1563                 if( p_owner->sout.psz_language )
1564                     free( p_owner->sout.psz_language );
1565                 p_owner->sout.psz_language =
1566                     strdup( p_dec->fmt_in.psz_language );
1567             }
1568
1569             p_owner->p_sout_input =
1570                 sout_InputNew( p_owner->p_sout,
1571                                &p_owner->sout );
1572
1573             if( p_owner->p_sout_input == NULL )
1574             {
1575                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1576                          (char *)&p_owner->sout.i_codec );
1577                 p_dec->b_error = true;
1578
1579                 while( p_sout_block )
1580                 {
1581                     block_t *p_next = p_sout_block->p_next;
1582                     block_Release( p_sout_block );
1583                     p_sout_block = p_next;
1584                 }
1585                 break;
1586             }
1587         }
1588
1589         while( p_sout_block )
1590         {
1591             block_t *p_next = p_sout_block->p_next;
1592
1593             p_sout_block->p_next = NULL;
1594
1595             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1596
1597             p_sout_block = p_next;
1598         }
1599
1600         /* For now it's enough, as only sout impact on this flag */
1601         if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1602             p_owner->p_input->p->b_out_pace_control )
1603         {
1604             msg_Dbg( p_dec, "switching to sync mode" );
1605             p_owner->p_input->p->b_out_pace_control = false;
1606         }
1607         else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1608                  !p_owner->p_input->p->b_out_pace_control )
1609         {
1610             msg_Dbg( p_dec, "switching to async mode" );
1611             p_owner->p_input->p->b_out_pace_control = true;
1612         }
1613     }
1614 }
1615
1616 /* This function process a video block
1617  */
1618 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1619 {
1620     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1621
1622     if( p_owner->p_packetizer )
1623     {
1624         block_t *p_packetized_block;
1625         decoder_t *p_packetizer = p_owner->p_packetizer;
1626
1627         while( (p_packetized_block =
1628                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1629         {
1630             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1631             {
1632                 es_format_Clean( &p_dec->fmt_in );
1633                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1634             }
1635             if( p_packetizer->pf_get_cc )
1636                 DecoderGetCc( p_dec, p_packetizer );
1637
1638             while( p_packetized_block )
1639             {
1640                 block_t *p_next = p_packetized_block->p_next;
1641                 p_packetized_block->p_next = NULL;
1642
1643                 DecoderDecodeVideo( p_dec, p_packetized_block );
1644
1645                 p_packetized_block = p_next;
1646             }
1647         }
1648     }
1649     else if( p_block )
1650     {
1651         DecoderDecodeVideo( p_dec, p_block );
1652     }
1653
1654     if( b_flush && p_owner->p_vout )
1655         VoutFlushPicture( p_owner->p_vout, 1 );
1656 }
1657
1658 /* This function process a audio block
1659  */
1660 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1661 {
1662     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1663
1664     if( p_owner->p_packetizer )
1665     {
1666         block_t *p_packetized_block;
1667         decoder_t *p_packetizer = p_owner->p_packetizer;
1668
1669         while( (p_packetized_block =
1670                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1671         {
1672             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1673             {
1674                 es_format_Clean( &p_dec->fmt_in );
1675                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1676             }
1677
1678             while( p_packetized_block )
1679             {
1680                 block_t *p_next = p_packetized_block->p_next;
1681                 p_packetized_block->p_next = NULL;
1682
1683                 DecoderDecodeAudio( p_dec, p_packetized_block );
1684
1685                 p_packetized_block = p_next;
1686             }
1687         }
1688     }
1689     else if( p_block )
1690     {
1691         DecoderDecodeAudio( p_dec, p_block );
1692     }
1693
1694     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1695         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1696 }
1697
1698 /* This function process a subtitle block
1699  */
1700 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1701 {
1702     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1703     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1704
1705     input_thread_t *p_input = p_owner->p_input;
1706     vout_thread_t *p_vout;
1707     subpicture_t *p_spu;
1708
1709     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1710     {
1711         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1712         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1713         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1714
1715         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1716         if( p_vout && p_owner->p_spu_vout == p_vout )
1717         {
1718             /* Preroll does not work very well with subtitle */
1719             if( p_spu->i_start > 0 &&
1720                 p_spu->i_start < p_owner->i_preroll_end &&
1721                 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1722             {
1723                 subpicture_Delete( p_spu );
1724             }
1725             else
1726             {
1727                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1728             }
1729         }
1730         else
1731         {
1732             subpicture_Delete( p_spu );
1733         }
1734         if( p_vout )
1735             vlc_object_release( p_vout );
1736     }
1737
1738     if( b_flush && p_owner->p_spu_vout )
1739     {
1740         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1741
1742         if( p_vout && p_owner->p_spu_vout == p_vout )
1743             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1744                          p_owner->i_spu_channel );
1745
1746         if( p_vout )
1747             vlc_object_release( p_vout );
1748     }
1749 }
1750
1751 /**
1752  * Decode a block
1753  *
1754  * \param p_dec the decoder object
1755  * \param p_block the block to decode
1756  * \return VLC_SUCCESS or an error code
1757  */
1758 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1759 {
1760     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1761     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1762
1763     if( p_block && p_block->i_buffer <= 0 )
1764     {
1765         assert( !b_flush_request );
1766         block_Release( p_block );
1767         return VLC_SUCCESS;
1768     }
1769
1770 #ifdef ENABLE_SOUT
1771     if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1772     {
1773         if( p_block )
1774             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1775
1776         DecoderProcessSout( p_dec, p_block );
1777     }
1778     else
1779 #endif
1780     {
1781         bool b_flush = false;
1782
1783         if( p_block )
1784         {
1785             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1786             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1787
1788             b_flush = !b_flushing && b_flush_request;
1789
1790             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1791         }
1792
1793         if( p_dec->fmt_in.i_cat == AUDIO_ES )
1794         {
1795             DecoderProcessAudio( p_dec, p_block, b_flush );
1796         }
1797         else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1798         {
1799             DecoderProcessVideo( p_dec, p_block, b_flush );
1800         }
1801         else if( p_dec->fmt_in.i_cat == SPU_ES )
1802         {
1803             DecoderProcessSpu( p_dec, p_block, b_flush );
1804         }
1805         else
1806         {
1807             msg_Err( p_dec, "unknown ES format" );
1808             p_dec->b_error = true;
1809         }
1810     }
1811
1812     /* */
1813     if( b_flush_request )
1814     {
1815         vlc_mutex_lock( &p_owner->lock );
1816         DecoderFlushBuffering( p_dec );
1817         vlc_mutex_unlock( &p_owner->lock );
1818
1819         DecoderSignalFlushed( p_dec );
1820     }
1821
1822     return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1823 }
1824
1825 /**
1826  * Destroys a decoder object
1827  *
1828  * \param p_dec the decoder object
1829  * \return nothing
1830  */
1831 static void DeleteDecoder( decoder_t * p_dec )
1832 {
1833     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1834
1835     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1836              (char*)&p_dec->fmt_in.i_codec,
1837              (unsigned)block_FifoCount( p_owner->p_fifo ) );
1838
1839     /* Free all packets still in the decoder fifo. */
1840     block_FifoEmpty( p_owner->p_fifo );
1841     block_FifoRelease( p_owner->p_fifo );
1842
1843     /* */
1844     vlc_mutex_lock( &p_owner->lock );
1845     DecoderFlushBuffering( p_dec );
1846     vlc_mutex_unlock( &p_owner->lock );
1847
1848     /* Cleanup */
1849     if( p_owner->p_aout_input )
1850         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1851     if( p_owner->p_aout )
1852     {
1853         vlc_object_release( p_owner->p_aout );
1854         p_owner->p_aout = NULL;
1855     }
1856     if( p_owner->p_vout )
1857     {
1858         /* Hack to make sure all the the pictures are freed by the decoder */
1859         for( int i_pic = 0; i_pic < p_owner->p_vout->render.i_pictures; i_pic++ )
1860         {
1861             picture_t *p_pic = p_owner->p_vout->render.pp_picture[i_pic];
1862
1863             if( p_pic->i_status == RESERVED_PICTURE )
1864                 vout_DestroyPicture( p_owner->p_vout, p_pic );
1865             if( p_pic->i_refcount > 0 )
1866                 vout_UnlinkPicture( p_owner->p_vout, p_pic );
1867         }
1868
1869         /* We are about to die. Reattach video output to p_vlc. */
1870         vout_Request( p_dec, p_owner->p_vout, NULL );
1871         var_SetBool( p_owner->p_input, "intf-change-vout", true );
1872     }
1873
1874 #ifdef ENABLE_SOUT
1875     if( p_owner->p_sout_input )
1876     {
1877         sout_InputDelete( p_owner->p_sout_input );
1878         es_format_Clean( &p_owner->sout );
1879     }
1880 #endif
1881
1882     if( p_dec->fmt_in.i_cat == SPU_ES )
1883     {
1884         vout_thread_t *p_vout;
1885
1886         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1887         if( p_vout && p_owner->p_spu_vout == p_vout )
1888         {
1889             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1890                          p_owner->i_spu_channel );
1891             vlc_object_release( p_vout );
1892         }
1893     }
1894
1895     es_format_Clean( &p_dec->fmt_in );
1896     es_format_Clean( &p_dec->fmt_out );
1897
1898     if( p_owner->p_packetizer )
1899     {
1900         module_unneed( p_owner->p_packetizer,
1901                        p_owner->p_packetizer->p_module );
1902         es_format_Clean( &p_owner->p_packetizer->fmt_in );
1903         es_format_Clean( &p_owner->p_packetizer->fmt_out );
1904         vlc_object_detach( p_owner->p_packetizer );
1905         vlc_object_release( p_owner->p_packetizer );
1906     }
1907
1908     vlc_cond_destroy( &p_owner->wait );
1909     vlc_mutex_destroy( &p_owner->lock );
1910
1911     vlc_object_detach( p_dec );
1912
1913     free( p_owner );
1914 }
1915
1916 /*****************************************************************************
1917  * Buffers allocation callbacks for the decoders
1918  *****************************************************************************/
1919 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1920 {
1921     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1922     aout_buffer_t *p_buffer;
1923
1924     if( p_owner->p_aout_input != NULL &&
1925         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1926           p_dec->fmt_out.audio.i_original_channels !=
1927               p_owner->audio.i_original_channels ||
1928           p_dec->fmt_out.audio.i_bytes_per_frame !=
1929               p_owner->audio.i_bytes_per_frame ) )
1930     {
1931         aout_input_t *p_aout_input = p_owner->p_aout_input;
1932
1933         /* Parameters changed, restart the aout */
1934         vlc_mutex_lock( &p_owner->lock );
1935
1936         DecoderFlushBuffering( p_dec );
1937
1938         p_owner->p_aout_input = NULL;
1939         aout_DecDelete( p_owner->p_aout, p_aout_input );
1940
1941         vlc_mutex_unlock( &p_owner->lock );
1942     }
1943
1944     if( p_owner->p_aout_input == NULL )
1945     {
1946         const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1947         audio_sample_format_t format;
1948         aout_input_t *p_aout_input;
1949         aout_instance_t *p_aout;
1950
1951         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1952         p_owner->audio = p_dec->fmt_out.audio;
1953
1954         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1955         if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1956                                     == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1957         {
1958             if ( i_force_dolby == 1 )
1959             {
1960                 format.i_original_channels = format.i_original_channels |
1961                                              AOUT_CHAN_DOLBYSTEREO;
1962             }
1963             else /* i_force_dolby == 2 */
1964             {
1965                 format.i_original_channels = format.i_original_channels &
1966                                              ~AOUT_CHAN_DOLBYSTEREO;
1967             }
1968         }
1969
1970         p_aout = p_owner->p_aout;
1971         p_aout_input = aout_DecNew( p_dec, &p_aout,
1972                                     &format, &p_dec->fmt_out.audio_replay_gain );
1973
1974         vlc_mutex_lock( &p_owner->lock );
1975         p_owner->p_aout = p_aout;
1976         p_owner->p_aout_input = p_aout_input;
1977         vlc_mutex_unlock( &p_owner->lock );
1978
1979         if( p_owner->p_aout_input == NULL )
1980         {
1981             msg_Err( p_dec, "failed to create audio output" );
1982             p_dec->b_error = true;
1983             return NULL;
1984         }
1985         p_dec->fmt_out.audio.i_bytes_per_frame =
1986             p_owner->audio.i_bytes_per_frame;
1987     }
1988
1989     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1990
1991     return p_buffer;
1992 }
1993
1994 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1995 {
1996     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1997
1998     aout_DecDeleteBuffer( p_owner->p_aout,
1999                           p_owner->p_aout_input, p_buffer );
2000 }
2001
2002
2003 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2004
2005 static picture_t *vout_new_buffer( decoder_t *p_dec )
2006 {
2007     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2008
2009     if( p_owner->p_vout == NULL ||
2010         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2011         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2012         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2013         p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2014     {
2015         vout_thread_t *p_vout;
2016
2017         if( !p_dec->fmt_out.video.i_width ||
2018             !p_dec->fmt_out.video.i_height )
2019         {
2020             /* Can't create a new vout without display size */
2021             return NULL;
2022         }
2023
2024         if( !p_dec->fmt_out.video.i_visible_width ||
2025             !p_dec->fmt_out.video.i_visible_height )
2026         {
2027             if( p_dec->fmt_in.video.i_visible_width &&
2028                 p_dec->fmt_in.video.i_visible_height )
2029             {
2030                 p_dec->fmt_out.video.i_visible_width =
2031                     p_dec->fmt_in.video.i_visible_width;
2032                 p_dec->fmt_out.video.i_visible_height =
2033                     p_dec->fmt_in.video.i_visible_height;
2034             }
2035             else
2036             {
2037                 p_dec->fmt_out.video.i_visible_width =
2038                     p_dec->fmt_out.video.i_width;
2039                 p_dec->fmt_out.video.i_visible_height =
2040                     p_dec->fmt_out.video.i_height;
2041             }
2042         }
2043
2044         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2045             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2046         {
2047             p_dec->fmt_out.video.i_visible_height = 1080;
2048             p_dec->fmt_out.video.i_sar_num *= 135;
2049             p_dec->fmt_out.video.i_sar_den *= 136;
2050             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2051         }
2052
2053         if( !p_dec->fmt_out.video.i_sar_num ||
2054             !p_dec->fmt_out.video.i_sar_den )
2055         {
2056             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2057               p_dec->fmt_out.video.i_visible_height;
2058
2059             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2060               p_dec->fmt_out.video.i_visible_width;
2061         }
2062
2063         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2064                      &p_dec->fmt_out.video.i_sar_den,
2065                      p_dec->fmt_out.video.i_sar_num,
2066                      p_dec->fmt_out.video.i_sar_den, 50000 );
2067
2068         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2069         p_owner->video = p_dec->fmt_out.video;
2070
2071         vlc_mutex_lock( &p_owner->lock );
2072
2073         DecoderFlushBuffering( p_dec );
2074
2075         p_vout = p_owner->p_vout;
2076         p_owner->p_vout = NULL;
2077         vlc_mutex_unlock( &p_owner->lock );
2078
2079         p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2080
2081         vlc_mutex_lock( &p_owner->lock );
2082         p_owner->p_vout = p_vout;
2083         vlc_mutex_unlock( &p_owner->lock );
2084
2085         var_SetBool( p_owner->p_input, "intf-change-vout", true );
2086         if( p_vout == NULL )
2087         {
2088             msg_Err( p_dec, "failed to create video output" );
2089             p_dec->b_error = true;
2090             return NULL;
2091         }
2092
2093         if( p_owner->video.i_rmask )
2094             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2095         if( p_owner->video.i_gmask )
2096             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2097         if( p_owner->video.i_bmask )
2098             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2099     }
2100
2101     /* Get a new picture
2102      */
2103     for( ;; )
2104     {
2105         picture_t *p_picture;
2106         int i_pic, i_ready_pic;
2107
2108         if( p_dec->b_die || p_dec->b_error )
2109             return NULL;
2110
2111         /* The video filter chain required that there is always 1 free buffer
2112          * that it will use as temporary one. It will release the temporary
2113          * buffer once its work is done, so this check is safe even if we don't
2114          * lock around both count() and create().
2115          */
2116         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2117         {
2118             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2119             if( p_picture )
2120                 return p_picture;
2121         }
2122
2123         if( DecoderIsFlushing( p_dec ) )
2124             return NULL;
2125
2126         /* */
2127         DecoderSignalBuffering( p_dec, true );
2128
2129         /* Check the decoder doesn't leak pictures */
2130         for( i_pic = 0, i_ready_pic = 0; i_pic < p_owner->p_vout->render.i_pictures; i_pic++ )
2131         {
2132             const picture_t *p_pic = p_owner->p_vout->render.pp_picture[i_pic];
2133
2134             if( p_pic->i_status == READY_PICTURE )
2135             {
2136                 i_ready_pic++;
2137                 /* If we have at least 2 ready pictures, wait for the vout thread to
2138                  * process one */
2139                 if( i_ready_pic >= 2 )
2140                     break;
2141
2142                 continue;
2143             }
2144
2145             if( p_pic->i_status == DISPLAYED_PICTURE )
2146             {
2147                 /* If at least one displayed picture is not referenced
2148                  * let vout free it */
2149                 if( p_pic->i_refcount == 0 )
2150                     break;
2151             }
2152         }
2153
2154         if( i_pic == p_owner->p_vout->render.i_pictures )
2155         {
2156             /* Too many pictures are still referenced, there is probably a bug
2157              * with the decoder */
2158             msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
2159
2160             /* Just free all the pictures */
2161             for( i_pic = 0; i_pic < p_owner->p_vout->render.i_pictures; i_pic++ )
2162             {
2163                 picture_t *p_pic = p_owner->p_vout->render.pp_picture[i_pic];
2164
2165                 if( p_pic->i_status == RESERVED_PICTURE )
2166                     vout_DestroyPicture( p_owner->p_vout, p_pic );
2167                 if( p_pic->i_refcount > 0 )
2168                     vout_UnlinkPicture( p_owner->p_vout, p_pic );
2169             }
2170         }
2171
2172         msleep( VOUT_OUTMEM_SLEEP );
2173     }
2174 }
2175
2176 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2177 {
2178     VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
2179 }
2180
2181 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2182 {
2183     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2184 }
2185
2186 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2187 {
2188     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2189 }
2190
2191 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2192 {
2193     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2194     vout_thread_t *p_vout = NULL;
2195     subpicture_t *p_subpic;
2196     int i_attempts = 30;
2197
2198     while( i_attempts-- )
2199     {
2200         if( p_dec->b_die || p_dec->b_error )
2201             break;
2202
2203         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2204         if( p_vout )
2205             break;
2206
2207         msleep( VOUT_DISPLAY_DELAY );
2208     }
2209
2210     if( !p_vout )
2211     {
2212         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2213         return NULL;
2214     }
2215
2216     if( p_owner->p_spu_vout != p_vout )
2217     {
2218         vlc_mutex_lock( &p_owner->lock );
2219
2220         DecoderFlushBuffering( p_dec );
2221
2222         vlc_mutex_unlock( &p_owner->lock );
2223
2224         spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2225                      &p_owner->i_spu_channel );
2226         p_owner->i_spu_order = 0;
2227         p_owner->p_spu_vout = p_vout;
2228     }
2229
2230     p_subpic = subpicture_New();
2231     if( p_subpic )
2232     {
2233         p_subpic->i_channel = p_owner->i_spu_channel;
2234         p_subpic->i_order = p_owner->i_spu_order++;
2235         p_subpic->b_subtitle = true;
2236     }
2237
2238     vlc_object_release( p_vout );
2239
2240     return p_subpic;
2241 }
2242
2243 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2244 {
2245     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2246     vout_thread_t *p_vout = NULL;
2247
2248     p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2249     if( !p_vout || p_owner->p_spu_vout != p_vout )
2250     {
2251         if( p_vout )
2252             vlc_object_release( p_vout );
2253         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2254         return;
2255     }
2256
2257     subpicture_Delete( p_subpic );
2258
2259     vlc_object_release( p_vout );
2260 }
2261