Moved vout helpers out of decoder.c.
[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             p_owner->buffer.i_count--;
1004
1005             b_has_more = p_owner->buffer.p_audio != NULL;
1006             if( !b_has_more )
1007                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1008         }
1009
1010         /* */
1011         int i_rate = INPUT_RATE_DEFAULT;
1012         mtime_t i_delay;
1013
1014         DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1015                       &i_rate, &i_delay, false );
1016
1017         vlc_mutex_unlock( &p_owner->lock );
1018
1019         /* */
1020         const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1021
1022         if( !p_aout || !p_aout_input ||
1023             p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1024             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1025             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1026             b_reject = true;
1027
1028         if( !b_reject )
1029         {
1030             /* Wait if we are too early
1031              * FIXME that's plain ugly to do it here */
1032             mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1033
1034             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1035                 *pi_played_sum += 1;
1036             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1037         }
1038         else
1039         {
1040             if( p_audio->start_date <= 0 )
1041             {
1042                 msg_Warn( p_dec, "non-dated audio buffer received" );
1043             }
1044             else if( p_audio->start_date > i_max_date )
1045             {
1046                 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1047                           p_audio->start_date - mdate() );
1048             }
1049             *pi_lost_sum += 1;
1050             aout_BufferFree( p_audio );
1051         }
1052
1053         if( !b_has_more )
1054             break;
1055
1056         vlc_mutex_lock( &p_owner->lock );
1057         if( !p_owner->buffer.p_audio )
1058         {
1059             vlc_mutex_unlock( &p_owner->lock );
1060             break;
1061         }
1062     }
1063 }
1064
1065 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1066 {
1067     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1068     input_thread_t  *p_input = p_owner->p_input;
1069     aout_buffer_t   *p_aout_buf;
1070     int i_decoded = 0;
1071     int i_lost = 0;
1072     int i_played = 0;
1073
1074     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1075     {
1076         aout_instance_t *p_aout = p_owner->p_aout;
1077         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1078         int i_lost = 0;
1079         int i_played;
1080
1081         if( p_dec->b_die )
1082         {
1083             /* It prevent freezing VLC in case of broken decoder */
1084             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1085             if( p_block )
1086                 block_Release( p_block );
1087             break;
1088         }
1089         i_decoded++;
1090
1091         if( p_aout_buf->start_date < p_owner->i_preroll_end )
1092         {
1093             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1094             continue;
1095         }
1096
1097         if( p_owner->i_preroll_end > 0 )
1098         {
1099             msg_Dbg( p_dec, "End of audio preroll" );
1100             if( p_owner->p_aout && p_owner->p_aout_input )
1101                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1102             /* */
1103             p_owner->i_preroll_end = -1;
1104         }
1105
1106         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1107     }
1108
1109     /* Update ugly stat */
1110     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1111     {
1112         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1113
1114         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1115                              i_lost, NULL );
1116         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1117                              i_played, NULL );
1118         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1119                              i_decoded, NULL );
1120
1121         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1122     }
1123 }
1124 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1125 {
1126     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1127     block_t *p_cc;
1128     bool pb_present[4];
1129     int i;
1130     int i_cc_decoder;
1131
1132     assert( p_dec_cc->pf_get_cc != NULL );
1133
1134     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1135     if( !p_owner->cc.b_supported )
1136         return;
1137
1138     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1139     if( !p_cc )
1140         return;
1141
1142     vlc_mutex_lock( &p_owner->lock );
1143     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1144     {
1145         p_owner->cc.pb_present[i] |= pb_present[i];
1146         if( p_owner->cc.pp_decoder[i] )
1147             i_cc_decoder++;
1148     }
1149
1150     for( i = 0; i < 4; i++ )
1151     {
1152         if( !p_owner->cc.pp_decoder[i] )
1153             continue;
1154
1155         if( i_cc_decoder > 1 )
1156             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1157         else
1158             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1159         i_cc_decoder--;
1160     }
1161     vlc_mutex_unlock( &p_owner->lock );
1162 }
1163
1164 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1165                               int *pi_played_sum, int *pi_lost_sum )
1166 {
1167     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1168     vout_thread_t  *p_vout = p_owner->p_vout;
1169
1170     if( p_picture->date <= 0 )
1171     {
1172         msg_Warn( p_vout, "non-dated video buffer received" );
1173         *pi_lost_sum += 1;
1174         vout_DropPicture( p_vout, p_picture );
1175         return;
1176     }
1177
1178     /* */
1179     vlc_mutex_lock( &p_owner->lock );
1180
1181     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1182     {
1183         p_picture->p_next = NULL;
1184
1185         *p_owner->buffer.pp_picture_next = p_picture;
1186         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1187
1188         p_owner->buffer.i_count++;
1189         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1190             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1191         {
1192             p_owner->buffer.b_full = true;
1193             vlc_cond_signal( &p_owner->wait );
1194         }
1195     }
1196
1197     for( ;; )
1198     {
1199         bool b_has_more = false;
1200
1201         bool b_reject;
1202         DecoderWaitUnblock( p_dec, &b_reject );
1203
1204         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1205         {
1206             vlc_mutex_unlock( &p_owner->lock );
1207             return;
1208         }
1209         bool b_buffering_first = p_owner->b_buffering;
1210
1211         /* */
1212         if( p_owner->buffer.p_picture )
1213         {
1214             p_picture = p_owner->buffer.p_picture;
1215
1216             p_owner->buffer.p_picture = p_picture->p_next;
1217             p_owner->buffer.i_count--;
1218
1219             b_has_more = p_owner->buffer.p_picture != NULL;
1220             if( !b_has_more )
1221                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1222         }
1223
1224         /* */
1225         int i_rate = INPUT_RATE_DEFAULT;
1226         mtime_t i_delay;
1227
1228         if( b_buffering_first )
1229         {
1230             assert( p_owner->buffer.b_first );
1231             assert( !p_owner->buffer.i_count );
1232             msg_Dbg( p_dec, "Received first picture" );
1233             p_owner->buffer.b_first = false;
1234             p_picture->date = mdate();
1235             p_picture->b_force = true;
1236             i_delay = 0;
1237             if( p_owner->p_clock )
1238                 i_rate = input_clock_GetRate( p_owner->p_clock );
1239         }
1240         else
1241         {
1242             DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1243                           &i_rate, &i_delay, false );
1244         }
1245
1246         vlc_mutex_unlock( &p_owner->lock );
1247
1248         /* */
1249         const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1250
1251         if( p_picture->date <= 0 || p_picture->date >= i_max_date )
1252             b_reject = true;
1253
1254         if( !b_reject )
1255         {
1256             if( i_rate != p_owner->i_last_rate  )
1257             {
1258                 /* Be sure to not display old picture after our own */
1259                 vout_Flush( p_vout, p_picture->date );
1260                 p_owner->i_last_rate = i_rate;
1261             }
1262
1263             vout_DatePicture( p_vout, p_picture, p_picture->date );
1264
1265             vout_DisplayPicture( p_vout, p_picture );
1266         }
1267         else
1268         {
1269             if( p_picture->date <= 0 )
1270             {
1271                 msg_Warn( p_vout, "non-dated video buffer received" );
1272             }
1273             else
1274             {
1275                 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1276                           p_picture->date - mdate() );
1277             }
1278             *pi_lost_sum += 1;
1279             vout_DropPicture( p_vout, p_picture );
1280         }
1281         int i_tmp_display;
1282         int i_tmp_lost;
1283         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1284
1285         *pi_played_sum += i_tmp_display;
1286         *pi_lost_sum += i_tmp_lost;
1287
1288         if( !b_has_more || b_buffering_first )
1289             break;
1290
1291         vlc_mutex_lock( &p_owner->lock );
1292         if( !p_owner->buffer.p_picture )
1293         {
1294             vlc_mutex_unlock( &p_owner->lock );
1295             break;
1296         }
1297     }
1298 }
1299
1300 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1301 {
1302     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1303     input_thread_t *p_input = p_owner->p_input;
1304     picture_t      *p_pic;
1305     int i_lost = 0;
1306     int i_decoded = 0;
1307     int i_displayed = 0;
1308
1309     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1310     {
1311         vout_thread_t  *p_vout = p_owner->p_vout;
1312         if( p_dec->b_die )
1313         {
1314             /* It prevent freezing VLC in case of broken decoder */
1315             vout_DropPicture( p_vout, p_pic );
1316             if( p_block )
1317                 block_Release( p_block );
1318             break;
1319         }
1320
1321         i_decoded++;
1322
1323         if( p_pic->date < p_owner->i_preroll_end )
1324         {
1325             vout_DropPicture( p_vout, p_pic );
1326             continue;
1327         }
1328
1329         if( p_owner->i_preroll_end > 0 )
1330         {
1331             msg_Dbg( p_dec, "End of video preroll" );
1332             if( p_vout )
1333                 vout_Flush( p_vout, 1 );
1334             /* */
1335             p_owner->i_preroll_end = -1;
1336         }
1337
1338         if( p_dec->pf_get_cc &&
1339             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1340             DecoderGetCc( p_dec, p_dec );
1341
1342         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1343     }
1344     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1345     {
1346         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1347
1348         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1349                              i_decoded, NULL );
1350         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1351                              i_lost , NULL);
1352
1353         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1354                              i_displayed, NULL);
1355
1356         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1357     }
1358 }
1359
1360 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1361                             bool b_telx )
1362 {
1363     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1364     vout_thread_t *p_vout = p_owner->p_spu_vout;
1365
1366     /* */
1367     if( p_subpic->i_start <= 0 )
1368     {
1369         msg_Warn( p_dec, "non-dated spu buffer received" );
1370         subpicture_Delete( p_subpic );
1371         return;
1372     }
1373
1374     /* */
1375     vlc_mutex_lock( &p_owner->lock );
1376
1377     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1378     {
1379         p_subpic->p_next = NULL;
1380
1381         *p_owner->buffer.pp_subpic_next = p_subpic;
1382         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1383
1384         p_owner->buffer.i_count++;
1385         /* XXX it is important to be full after the first one */
1386         if( p_owner->buffer.i_count > 0 )
1387         {
1388             p_owner->buffer.b_full = true;
1389             vlc_cond_signal( &p_owner->wait );
1390         }
1391     }
1392
1393     for( ;; )
1394     {
1395         bool b_has_more = false;
1396         bool b_reject;
1397         DecoderWaitUnblock( p_dec, &b_reject );
1398
1399         if( p_owner->b_buffering )
1400         {
1401             vlc_mutex_unlock( &p_owner->lock );
1402             return;
1403         }
1404
1405         /* */
1406         if( p_owner->buffer.p_subpic )
1407         {
1408             p_subpic = p_owner->buffer.p_subpic;
1409
1410             p_owner->buffer.p_subpic = p_subpic->p_next;
1411             p_owner->buffer.i_count--;
1412
1413             b_has_more = p_owner->buffer.p_subpic != NULL;
1414             if( !b_has_more )
1415                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1416         }
1417
1418         /* */
1419         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1420                       NULL, NULL, b_telx );
1421
1422         vlc_mutex_unlock( &p_owner->lock );
1423
1424         if( !b_reject )
1425             spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1426         else
1427             subpicture_Delete( p_subpic );
1428
1429         if( !b_has_more )
1430             break;
1431         vlc_mutex_lock( &p_owner->lock );
1432         if( !p_owner->buffer.p_subpic )
1433         {
1434             vlc_mutex_unlock( &p_owner->lock );
1435             break;
1436         }
1437     }
1438 }
1439
1440 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1441                              bool b_telx )
1442 {
1443     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1444
1445     assert( p_owner->p_clock );
1446
1447     vlc_mutex_lock( &p_owner->lock );
1448
1449     bool b_reject;
1450     DecoderWaitUnblock( p_dec, &b_reject );
1451
1452     DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1453                   &p_sout_block->i_rate, NULL, b_telx );
1454
1455     vlc_mutex_unlock( &p_owner->lock );
1456
1457     sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1458 }
1459
1460 /* */
1461 static void DecoderFlushBuffering( decoder_t *p_dec )
1462 {
1463     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1464
1465     vlc_assert_locked( &p_owner->lock );
1466
1467     while( p_owner->buffer.p_picture )
1468     {
1469         picture_t *p_picture = p_owner->buffer.p_picture;
1470
1471         p_owner->buffer.p_picture = p_picture->p_next;
1472         p_owner->buffer.i_count--;
1473
1474         if( p_owner->p_vout )
1475             vout_DropPicture( p_owner->p_vout, p_picture );
1476
1477         if( !p_owner->buffer.p_picture )
1478             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1479     }
1480     while( p_owner->buffer.p_audio )
1481     {
1482         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1483
1484         p_owner->buffer.p_audio = p_audio->p_next;
1485         p_owner->buffer.i_count--;
1486
1487         aout_BufferFree( p_audio );
1488
1489         if( !p_owner->buffer.p_audio )
1490             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1491     }
1492     while( p_owner->buffer.p_subpic )
1493     {
1494         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1495
1496         p_owner->buffer.p_subpic = p_subpic->p_next;
1497         p_owner->buffer.i_count--;
1498
1499         subpicture_Delete( p_subpic );
1500
1501         if( !p_owner->buffer.p_subpic )
1502             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1503     }
1504 }
1505
1506 /* This function process a block for sout
1507  */
1508 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1509 {
1510     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1511     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1512     block_t *p_sout_block;
1513
1514     while( ( p_sout_block =
1515                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1516     {
1517         if( !p_owner->p_sout_input )
1518         {
1519             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1520
1521             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1522             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1523             if( p_dec->fmt_in.psz_language )
1524             {
1525                 if( p_owner->sout.psz_language )
1526                     free( p_owner->sout.psz_language );
1527                 p_owner->sout.psz_language =
1528                     strdup( p_dec->fmt_in.psz_language );
1529             }
1530
1531             p_owner->p_sout_input =
1532                 sout_InputNew( p_owner->p_sout,
1533                                &p_owner->sout );
1534
1535             if( p_owner->p_sout_input == NULL )
1536             {
1537                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1538                          (char *)&p_owner->sout.i_codec );
1539                 p_dec->b_error = true;
1540
1541                 while( p_sout_block )
1542                 {
1543                     block_t *p_next = p_sout_block->p_next;
1544                     block_Release( p_sout_block );
1545                     p_sout_block = p_next;
1546                 }
1547                 break;
1548             }
1549         }
1550
1551         while( p_sout_block )
1552         {
1553             block_t *p_next = p_sout_block->p_next;
1554
1555             p_sout_block->p_next = NULL;
1556
1557             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1558
1559             p_sout_block = p_next;
1560         }
1561
1562         /* For now it's enough, as only sout impact on this flag */
1563         if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1564             p_owner->p_input->p->b_out_pace_control )
1565         {
1566             msg_Dbg( p_dec, "switching to sync mode" );
1567             p_owner->p_input->p->b_out_pace_control = false;
1568         }
1569         else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1570                  !p_owner->p_input->p->b_out_pace_control )
1571         {
1572             msg_Dbg( p_dec, "switching to async mode" );
1573             p_owner->p_input->p->b_out_pace_control = true;
1574         }
1575     }
1576 }
1577
1578 /* This function process a video block
1579  */
1580 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1581 {
1582     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1583
1584     if( p_owner->p_packetizer )
1585     {
1586         block_t *p_packetized_block;
1587         decoder_t *p_packetizer = p_owner->p_packetizer;
1588
1589         while( (p_packetized_block =
1590                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1591         {
1592             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1593             {
1594                 es_format_Clean( &p_dec->fmt_in );
1595                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1596             }
1597             if( p_packetizer->pf_get_cc )
1598                 DecoderGetCc( p_dec, p_packetizer );
1599
1600             while( p_packetized_block )
1601             {
1602                 block_t *p_next = p_packetized_block->p_next;
1603                 p_packetized_block->p_next = NULL;
1604
1605                 DecoderDecodeVideo( p_dec, p_packetized_block );
1606
1607                 p_packetized_block = p_next;
1608             }
1609         }
1610     }
1611     else if( p_block )
1612     {
1613         DecoderDecodeVideo( p_dec, p_block );
1614     }
1615
1616     if( b_flush && p_owner->p_vout )
1617         vout_Flush( p_owner->p_vout, 1 );
1618 }
1619
1620 /* This function process a audio block
1621  */
1622 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1623 {
1624     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1625
1626     if( p_owner->p_packetizer )
1627     {
1628         block_t *p_packetized_block;
1629         decoder_t *p_packetizer = p_owner->p_packetizer;
1630
1631         while( (p_packetized_block =
1632                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1633         {
1634             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1635             {
1636                 es_format_Clean( &p_dec->fmt_in );
1637                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1638             }
1639
1640             while( p_packetized_block )
1641             {
1642                 block_t *p_next = p_packetized_block->p_next;
1643                 p_packetized_block->p_next = NULL;
1644
1645                 DecoderDecodeAudio( p_dec, p_packetized_block );
1646
1647                 p_packetized_block = p_next;
1648             }
1649         }
1650     }
1651     else if( p_block )
1652     {
1653         DecoderDecodeAudio( p_dec, p_block );
1654     }
1655
1656     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1657         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1658 }
1659
1660 /* This function process a subtitle block
1661  */
1662 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1663 {
1664     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1665     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1666
1667     input_thread_t *p_input = p_owner->p_input;
1668     vout_thread_t *p_vout;
1669     subpicture_t *p_spu;
1670
1671     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1672     {
1673         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1674         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1675         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1676
1677         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1678         if( p_vout && p_owner->p_spu_vout == p_vout )
1679         {
1680             /* Preroll does not work very well with subtitle */
1681             if( p_spu->i_start > 0 &&
1682                 p_spu->i_start < p_owner->i_preroll_end &&
1683                 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1684             {
1685                 subpicture_Delete( p_spu );
1686             }
1687             else
1688             {
1689                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1690             }
1691         }
1692         else
1693         {
1694             subpicture_Delete( p_spu );
1695         }
1696         if( p_vout )
1697             vlc_object_release( p_vout );
1698     }
1699
1700     if( b_flush && p_owner->p_spu_vout )
1701     {
1702         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1703
1704         if( p_vout && p_owner->p_spu_vout == p_vout )
1705             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1706                          p_owner->i_spu_channel );
1707
1708         if( p_vout )
1709             vlc_object_release( p_vout );
1710     }
1711 }
1712
1713 /**
1714  * Decode a block
1715  *
1716  * \param p_dec the decoder object
1717  * \param p_block the block to decode
1718  * \return VLC_SUCCESS or an error code
1719  */
1720 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1721 {
1722     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1723     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1724
1725     if( p_block && p_block->i_buffer <= 0 )
1726     {
1727         assert( !b_flush_request );
1728         block_Release( p_block );
1729         return VLC_SUCCESS;
1730     }
1731
1732 #ifdef ENABLE_SOUT
1733     if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1734     {
1735         if( p_block )
1736             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1737
1738         DecoderProcessSout( p_dec, p_block );
1739     }
1740     else
1741 #endif
1742     {
1743         bool b_flush = false;
1744
1745         if( p_block )
1746         {
1747             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1748             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1749
1750             b_flush = !b_flushing && b_flush_request;
1751
1752             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1753         }
1754
1755         if( p_dec->fmt_in.i_cat == AUDIO_ES )
1756         {
1757             DecoderProcessAudio( p_dec, p_block, b_flush );
1758         }
1759         else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1760         {
1761             DecoderProcessVideo( p_dec, p_block, b_flush );
1762         }
1763         else if( p_dec->fmt_in.i_cat == SPU_ES )
1764         {
1765             DecoderProcessSpu( p_dec, p_block, b_flush );
1766         }
1767         else
1768         {
1769             msg_Err( p_dec, "unknown ES format" );
1770             p_dec->b_error = true;
1771         }
1772     }
1773
1774     /* */
1775     if( b_flush_request )
1776     {
1777         vlc_mutex_lock( &p_owner->lock );
1778         DecoderFlushBuffering( p_dec );
1779         vlc_mutex_unlock( &p_owner->lock );
1780
1781         DecoderSignalFlushed( p_dec );
1782     }
1783
1784     return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1785 }
1786
1787 /**
1788  * Destroys a decoder object
1789  *
1790  * \param p_dec the decoder object
1791  * \return nothing
1792  */
1793 static void DeleteDecoder( decoder_t * p_dec )
1794 {
1795     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1796
1797     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1798              (char*)&p_dec->fmt_in.i_codec,
1799              (unsigned)block_FifoCount( p_owner->p_fifo ) );
1800
1801     /* Free all packets still in the decoder fifo. */
1802     block_FifoEmpty( p_owner->p_fifo );
1803     block_FifoRelease( p_owner->p_fifo );
1804
1805     /* */
1806     vlc_mutex_lock( &p_owner->lock );
1807     DecoderFlushBuffering( p_dec );
1808     vlc_mutex_unlock( &p_owner->lock );
1809
1810     /* Cleanup */
1811     if( p_owner->p_aout_input )
1812         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1813     if( p_owner->p_aout )
1814     {
1815         vlc_object_release( p_owner->p_aout );
1816         p_owner->p_aout = NULL;
1817     }
1818     if( p_owner->p_vout )
1819     {
1820         /* Hack to make sure all the the pictures are freed by the decoder */
1821         for( int i_pic = 0; i_pic < p_owner->p_vout->render.i_pictures; i_pic++ )
1822         {
1823             picture_t *p_pic = p_owner->p_vout->render.pp_picture[i_pic];
1824
1825             if( p_pic->i_status == RESERVED_PICTURE )
1826                 vout_DestroyPicture( p_owner->p_vout, p_pic );
1827             if( p_pic->i_refcount > 0 )
1828                 vout_UnlinkPicture( p_owner->p_vout, p_pic );
1829         }
1830
1831         /* We are about to die. Reattach video output to p_vlc. */
1832         vout_Request( p_dec, p_owner->p_vout, NULL );
1833         var_SetBool( p_owner->p_input, "intf-change-vout", true );
1834     }
1835
1836 #ifdef ENABLE_SOUT
1837     if( p_owner->p_sout_input )
1838     {
1839         sout_InputDelete( p_owner->p_sout_input );
1840         es_format_Clean( &p_owner->sout );
1841     }
1842 #endif
1843
1844     if( p_dec->fmt_in.i_cat == SPU_ES )
1845     {
1846         vout_thread_t *p_vout;
1847
1848         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1849         if( p_vout && p_owner->p_spu_vout == p_vout )
1850         {
1851             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1852                          p_owner->i_spu_channel );
1853             vlc_object_release( p_vout );
1854         }
1855     }
1856
1857     es_format_Clean( &p_dec->fmt_in );
1858     es_format_Clean( &p_dec->fmt_out );
1859
1860     if( p_owner->p_packetizer )
1861     {
1862         module_unneed( p_owner->p_packetizer,
1863                        p_owner->p_packetizer->p_module );
1864         es_format_Clean( &p_owner->p_packetizer->fmt_in );
1865         es_format_Clean( &p_owner->p_packetizer->fmt_out );
1866         vlc_object_detach( p_owner->p_packetizer );
1867         vlc_object_release( p_owner->p_packetizer );
1868     }
1869
1870     vlc_cond_destroy( &p_owner->wait );
1871     vlc_mutex_destroy( &p_owner->lock );
1872
1873     vlc_object_detach( p_dec );
1874
1875     free( p_owner );
1876 }
1877
1878 /*****************************************************************************
1879  * Buffers allocation callbacks for the decoders
1880  *****************************************************************************/
1881 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1882 {
1883     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1884     aout_buffer_t *p_buffer;
1885
1886     if( p_owner->p_aout_input != NULL &&
1887         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1888           p_dec->fmt_out.audio.i_original_channels !=
1889               p_owner->audio.i_original_channels ||
1890           p_dec->fmt_out.audio.i_bytes_per_frame !=
1891               p_owner->audio.i_bytes_per_frame ) )
1892     {
1893         aout_input_t *p_aout_input = p_owner->p_aout_input;
1894
1895         /* Parameters changed, restart the aout */
1896         vlc_mutex_lock( &p_owner->lock );
1897
1898         DecoderFlushBuffering( p_dec );
1899
1900         p_owner->p_aout_input = NULL;
1901         aout_DecDelete( p_owner->p_aout, p_aout_input );
1902
1903         vlc_mutex_unlock( &p_owner->lock );
1904     }
1905
1906     if( p_owner->p_aout_input == NULL )
1907     {
1908         const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1909         audio_sample_format_t format;
1910         aout_input_t *p_aout_input;
1911         aout_instance_t *p_aout;
1912
1913         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1914         p_owner->audio = p_dec->fmt_out.audio;
1915
1916         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1917         if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1918                                     == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1919         {
1920             if ( i_force_dolby == 1 )
1921             {
1922                 format.i_original_channels = format.i_original_channels |
1923                                              AOUT_CHAN_DOLBYSTEREO;
1924             }
1925             else /* i_force_dolby == 2 */
1926             {
1927                 format.i_original_channels = format.i_original_channels &
1928                                              ~AOUT_CHAN_DOLBYSTEREO;
1929             }
1930         }
1931
1932         p_aout = p_owner->p_aout;
1933         p_aout_input = aout_DecNew( p_dec, &p_aout,
1934                                     &format, &p_dec->fmt_out.audio_replay_gain );
1935
1936         vlc_mutex_lock( &p_owner->lock );
1937         p_owner->p_aout = p_aout;
1938         p_owner->p_aout_input = p_aout_input;
1939         vlc_mutex_unlock( &p_owner->lock );
1940
1941         if( p_owner->p_aout_input == NULL )
1942         {
1943             msg_Err( p_dec, "failed to create audio output" );
1944             p_dec->b_error = true;
1945             return NULL;
1946         }
1947         p_dec->fmt_out.audio.i_bytes_per_frame =
1948             p_owner->audio.i_bytes_per_frame;
1949     }
1950
1951     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1952
1953     return p_buffer;
1954 }
1955
1956 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1957 {
1958     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1959
1960     aout_DecDeleteBuffer( p_owner->p_aout,
1961                           p_owner->p_aout_input, p_buffer );
1962 }
1963
1964
1965 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1966
1967 static picture_t *vout_new_buffer( decoder_t *p_dec )
1968 {
1969     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1970
1971     if( p_owner->p_vout == NULL ||
1972         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
1973         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
1974         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
1975         p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
1976     {
1977         vout_thread_t *p_vout;
1978
1979         if( !p_dec->fmt_out.video.i_width ||
1980             !p_dec->fmt_out.video.i_height )
1981         {
1982             /* Can't create a new vout without display size */
1983             return NULL;
1984         }
1985
1986         if( !p_dec->fmt_out.video.i_visible_width ||
1987             !p_dec->fmt_out.video.i_visible_height )
1988         {
1989             if( p_dec->fmt_in.video.i_visible_width &&
1990                 p_dec->fmt_in.video.i_visible_height )
1991             {
1992                 p_dec->fmt_out.video.i_visible_width =
1993                     p_dec->fmt_in.video.i_visible_width;
1994                 p_dec->fmt_out.video.i_visible_height =
1995                     p_dec->fmt_in.video.i_visible_height;
1996             }
1997             else
1998             {
1999                 p_dec->fmt_out.video.i_visible_width =
2000                     p_dec->fmt_out.video.i_width;
2001                 p_dec->fmt_out.video.i_visible_height =
2002                     p_dec->fmt_out.video.i_height;
2003             }
2004         }
2005
2006         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2007             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2008         {
2009             p_dec->fmt_out.video.i_visible_height = 1080;
2010             p_dec->fmt_out.video.i_sar_num *= 135;
2011             p_dec->fmt_out.video.i_sar_den *= 136;
2012             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2013         }
2014
2015         if( !p_dec->fmt_out.video.i_sar_num ||
2016             !p_dec->fmt_out.video.i_sar_den )
2017         {
2018             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2019               p_dec->fmt_out.video.i_visible_height;
2020
2021             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2022               p_dec->fmt_out.video.i_visible_width;
2023         }
2024
2025         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2026                      &p_dec->fmt_out.video.i_sar_den,
2027                      p_dec->fmt_out.video.i_sar_num,
2028                      p_dec->fmt_out.video.i_sar_den, 50000 );
2029
2030         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2031         p_owner->video = p_dec->fmt_out.video;
2032
2033         vlc_mutex_lock( &p_owner->lock );
2034
2035         DecoderFlushBuffering( p_dec );
2036
2037         p_vout = p_owner->p_vout;
2038         p_owner->p_vout = NULL;
2039         vlc_mutex_unlock( &p_owner->lock );
2040
2041         p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2042
2043         vlc_mutex_lock( &p_owner->lock );
2044         p_owner->p_vout = p_vout;
2045         vlc_mutex_unlock( &p_owner->lock );
2046
2047         var_SetBool( p_owner->p_input, "intf-change-vout", true );
2048         if( p_vout == NULL )
2049         {
2050             msg_Err( p_dec, "failed to create video output" );
2051             p_dec->b_error = true;
2052             return NULL;
2053         }
2054
2055         if( p_owner->video.i_rmask )
2056             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2057         if( p_owner->video.i_gmask )
2058             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2059         if( p_owner->video.i_bmask )
2060             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2061     }
2062
2063     /* Get a new picture
2064      */
2065     for( ;; )
2066     {
2067         picture_t *p_picture;
2068
2069         if( p_dec->b_die || p_dec->b_error )
2070             return NULL;
2071
2072         /* The video filter chain required that there is always 1 free buffer
2073          * that it will use as temporary one. It will release the temporary
2074          * buffer once its work is done, so this check is safe even if we don't
2075          * lock around both count() and create().
2076          */
2077         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2078         {
2079             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2080             if( p_picture )
2081                 return p_picture;
2082         }
2083
2084         if( DecoderIsFlushing( p_dec ) )
2085             return NULL;
2086
2087         /* */
2088         DecoderSignalBuffering( p_dec, true );
2089
2090         /* Check the decoder doesn't leak pictures */
2091         vout_FixLeaks( p_owner->p_vout );
2092
2093         msleep( VOUT_OUTMEM_SLEEP );
2094     }
2095 }
2096
2097 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2098 {
2099     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2100 }
2101
2102 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2103 {
2104     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2105 }
2106
2107 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2108 {
2109     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2110 }
2111
2112 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2113 {
2114     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2115     vout_thread_t *p_vout = NULL;
2116     subpicture_t *p_subpic;
2117     int i_attempts = 30;
2118
2119     while( i_attempts-- )
2120     {
2121         if( p_dec->b_die || p_dec->b_error )
2122             break;
2123
2124         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2125         if( p_vout )
2126             break;
2127
2128         msleep( VOUT_DISPLAY_DELAY );
2129     }
2130
2131     if( !p_vout )
2132     {
2133         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2134         return NULL;
2135     }
2136
2137     if( p_owner->p_spu_vout != p_vout )
2138     {
2139         vlc_mutex_lock( &p_owner->lock );
2140
2141         DecoderFlushBuffering( p_dec );
2142
2143         vlc_mutex_unlock( &p_owner->lock );
2144
2145         spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2146                      &p_owner->i_spu_channel );
2147         p_owner->i_spu_order = 0;
2148         p_owner->p_spu_vout = p_vout;
2149     }
2150
2151     p_subpic = subpicture_New();
2152     if( p_subpic )
2153     {
2154         p_subpic->i_channel = p_owner->i_spu_channel;
2155         p_subpic->i_order = p_owner->i_spu_order++;
2156         p_subpic->b_subtitle = true;
2157     }
2158
2159     vlc_object_release( p_vout );
2160
2161     return p_subpic;
2162 }
2163
2164 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2165 {
2166     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2167     vout_thread_t *p_vout = NULL;
2168
2169     p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2170     if( !p_vout || p_owner->p_spu_vout != p_vout )
2171     {
2172         if( p_vout )
2173             vlc_object_release( p_vout );
2174         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2175         return;
2176     }
2177
2178     subpicture_Delete( p_subpic );
2179
2180     vlc_object_release( p_vout );
2181 }
2182