Merged vout_DatePicture into vout_DisplayPicture.
[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_DisplayPicture( p_vout, p_picture );
1264         }
1265         else
1266         {
1267             if( p_picture->date <= 0 )
1268             {
1269                 msg_Warn( p_vout, "non-dated video buffer received" );
1270             }
1271             else
1272             {
1273                 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1274                           p_picture->date - mdate() );
1275             }
1276             *pi_lost_sum += 1;
1277             vout_DropPicture( p_vout, p_picture );
1278         }
1279         int i_tmp_display;
1280         int i_tmp_lost;
1281         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1282
1283         *pi_played_sum += i_tmp_display;
1284         *pi_lost_sum += i_tmp_lost;
1285
1286         if( !b_has_more || b_buffering_first )
1287             break;
1288
1289         vlc_mutex_lock( &p_owner->lock );
1290         if( !p_owner->buffer.p_picture )
1291         {
1292             vlc_mutex_unlock( &p_owner->lock );
1293             break;
1294         }
1295     }
1296 }
1297
1298 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1299 {
1300     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1301     input_thread_t *p_input = p_owner->p_input;
1302     picture_t      *p_pic;
1303     int i_lost = 0;
1304     int i_decoded = 0;
1305     int i_displayed = 0;
1306
1307     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1308     {
1309         vout_thread_t  *p_vout = p_owner->p_vout;
1310         if( p_dec->b_die )
1311         {
1312             /* It prevent freezing VLC in case of broken decoder */
1313             vout_DropPicture( p_vout, p_pic );
1314             if( p_block )
1315                 block_Release( p_block );
1316             break;
1317         }
1318
1319         i_decoded++;
1320
1321         if( p_pic->date < p_owner->i_preroll_end )
1322         {
1323             vout_DropPicture( p_vout, p_pic );
1324             continue;
1325         }
1326
1327         if( p_owner->i_preroll_end > 0 )
1328         {
1329             msg_Dbg( p_dec, "End of video preroll" );
1330             if( p_vout )
1331                 vout_Flush( p_vout, 1 );
1332             /* */
1333             p_owner->i_preroll_end = -1;
1334         }
1335
1336         if( p_dec->pf_get_cc &&
1337             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1338             DecoderGetCc( p_dec, p_dec );
1339
1340         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1341     }
1342     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1343     {
1344         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1345
1346         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1347                              i_decoded, NULL );
1348         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1349                              i_lost , NULL);
1350
1351         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1352                              i_displayed, NULL);
1353
1354         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1355     }
1356 }
1357
1358 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1359                             bool b_telx )
1360 {
1361     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1362     vout_thread_t *p_vout = p_owner->p_spu_vout;
1363
1364     /* */
1365     if( p_subpic->i_start <= 0 )
1366     {
1367         msg_Warn( p_dec, "non-dated spu buffer received" );
1368         subpicture_Delete( p_subpic );
1369         return;
1370     }
1371
1372     /* */
1373     vlc_mutex_lock( &p_owner->lock );
1374
1375     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1376     {
1377         p_subpic->p_next = NULL;
1378
1379         *p_owner->buffer.pp_subpic_next = p_subpic;
1380         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1381
1382         p_owner->buffer.i_count++;
1383         /* XXX it is important to be full after the first one */
1384         if( p_owner->buffer.i_count > 0 )
1385         {
1386             p_owner->buffer.b_full = true;
1387             vlc_cond_signal( &p_owner->wait );
1388         }
1389     }
1390
1391     for( ;; )
1392     {
1393         bool b_has_more = false;
1394         bool b_reject;
1395         DecoderWaitUnblock( p_dec, &b_reject );
1396
1397         if( p_owner->b_buffering )
1398         {
1399             vlc_mutex_unlock( &p_owner->lock );
1400             return;
1401         }
1402
1403         /* */
1404         if( p_owner->buffer.p_subpic )
1405         {
1406             p_subpic = p_owner->buffer.p_subpic;
1407
1408             p_owner->buffer.p_subpic = p_subpic->p_next;
1409             p_owner->buffer.i_count--;
1410
1411             b_has_more = p_owner->buffer.p_subpic != NULL;
1412             if( !b_has_more )
1413                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1414         }
1415
1416         /* */
1417         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1418                       NULL, NULL, b_telx );
1419
1420         vlc_mutex_unlock( &p_owner->lock );
1421
1422         if( !b_reject )
1423             spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1424         else
1425             subpicture_Delete( p_subpic );
1426
1427         if( !b_has_more )
1428             break;
1429         vlc_mutex_lock( &p_owner->lock );
1430         if( !p_owner->buffer.p_subpic )
1431         {
1432             vlc_mutex_unlock( &p_owner->lock );
1433             break;
1434         }
1435     }
1436 }
1437
1438 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1439                              bool b_telx )
1440 {
1441     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1442
1443     assert( p_owner->p_clock );
1444
1445     vlc_mutex_lock( &p_owner->lock );
1446
1447     bool b_reject;
1448     DecoderWaitUnblock( p_dec, &b_reject );
1449
1450     DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1451                   &p_sout_block->i_rate, NULL, b_telx );
1452
1453     vlc_mutex_unlock( &p_owner->lock );
1454
1455     sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1456 }
1457
1458 /* */
1459 static void DecoderFlushBuffering( decoder_t *p_dec )
1460 {
1461     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1462
1463     vlc_assert_locked( &p_owner->lock );
1464
1465     while( p_owner->buffer.p_picture )
1466     {
1467         picture_t *p_picture = p_owner->buffer.p_picture;
1468
1469         p_owner->buffer.p_picture = p_picture->p_next;
1470         p_owner->buffer.i_count--;
1471
1472         if( p_owner->p_vout )
1473             vout_DropPicture( p_owner->p_vout, p_picture );
1474
1475         if( !p_owner->buffer.p_picture )
1476             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1477     }
1478     while( p_owner->buffer.p_audio )
1479     {
1480         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1481
1482         p_owner->buffer.p_audio = p_audio->p_next;
1483         p_owner->buffer.i_count--;
1484
1485         aout_BufferFree( p_audio );
1486
1487         if( !p_owner->buffer.p_audio )
1488             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1489     }
1490     while( p_owner->buffer.p_subpic )
1491     {
1492         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1493
1494         p_owner->buffer.p_subpic = p_subpic->p_next;
1495         p_owner->buffer.i_count--;
1496
1497         subpicture_Delete( p_subpic );
1498
1499         if( !p_owner->buffer.p_subpic )
1500             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1501     }
1502 }
1503
1504 /* This function process a block for sout
1505  */
1506 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1507 {
1508     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1509     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1510     block_t *p_sout_block;
1511
1512     while( ( p_sout_block =
1513                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1514     {
1515         if( !p_owner->p_sout_input )
1516         {
1517             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1518
1519             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1520             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1521             if( p_dec->fmt_in.psz_language )
1522             {
1523                 if( p_owner->sout.psz_language )
1524                     free( p_owner->sout.psz_language );
1525                 p_owner->sout.psz_language =
1526                     strdup( p_dec->fmt_in.psz_language );
1527             }
1528
1529             p_owner->p_sout_input =
1530                 sout_InputNew( p_owner->p_sout,
1531                                &p_owner->sout );
1532
1533             if( p_owner->p_sout_input == NULL )
1534             {
1535                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1536                          (char *)&p_owner->sout.i_codec );
1537                 p_dec->b_error = true;
1538
1539                 while( p_sout_block )
1540                 {
1541                     block_t *p_next = p_sout_block->p_next;
1542                     block_Release( p_sout_block );
1543                     p_sout_block = p_next;
1544                 }
1545                 break;
1546             }
1547         }
1548
1549         while( p_sout_block )
1550         {
1551             block_t *p_next = p_sout_block->p_next;
1552
1553             p_sout_block->p_next = NULL;
1554
1555             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1556
1557             p_sout_block = p_next;
1558         }
1559
1560         /* For now it's enough, as only sout impact on this flag */
1561         if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1562             p_owner->p_input->p->b_out_pace_control )
1563         {
1564             msg_Dbg( p_dec, "switching to sync mode" );
1565             p_owner->p_input->p->b_out_pace_control = false;
1566         }
1567         else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1568                  !p_owner->p_input->p->b_out_pace_control )
1569         {
1570             msg_Dbg( p_dec, "switching to async mode" );
1571             p_owner->p_input->p->b_out_pace_control = true;
1572         }
1573     }
1574 }
1575
1576 /* This function process a video block
1577  */
1578 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1579 {
1580     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1581
1582     if( p_owner->p_packetizer )
1583     {
1584         block_t *p_packetized_block;
1585         decoder_t *p_packetizer = p_owner->p_packetizer;
1586
1587         while( (p_packetized_block =
1588                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1589         {
1590             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1591             {
1592                 es_format_Clean( &p_dec->fmt_in );
1593                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1594             }
1595             if( p_packetizer->pf_get_cc )
1596                 DecoderGetCc( p_dec, p_packetizer );
1597
1598             while( p_packetized_block )
1599             {
1600                 block_t *p_next = p_packetized_block->p_next;
1601                 p_packetized_block->p_next = NULL;
1602
1603                 DecoderDecodeVideo( p_dec, p_packetized_block );
1604
1605                 p_packetized_block = p_next;
1606             }
1607         }
1608     }
1609     else if( p_block )
1610     {
1611         DecoderDecodeVideo( p_dec, p_block );
1612     }
1613
1614     if( b_flush && p_owner->p_vout )
1615         vout_Flush( p_owner->p_vout, 1 );
1616 }
1617
1618 /* This function process a audio block
1619  */
1620 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1621 {
1622     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1623
1624     if( p_owner->p_packetizer )
1625     {
1626         block_t *p_packetized_block;
1627         decoder_t *p_packetizer = p_owner->p_packetizer;
1628
1629         while( (p_packetized_block =
1630                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1631         {
1632             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1633             {
1634                 es_format_Clean( &p_dec->fmt_in );
1635                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1636             }
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                 DecoderDecodeAudio( p_dec, p_packetized_block );
1644
1645                 p_packetized_block = p_next;
1646             }
1647         }
1648     }
1649     else if( p_block )
1650     {
1651         DecoderDecodeAudio( p_dec, p_block );
1652     }
1653
1654     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1655         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1656 }
1657
1658 /* This function process a subtitle block
1659  */
1660 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1661 {
1662     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1663     const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1664
1665     input_thread_t *p_input = p_owner->p_input;
1666     vout_thread_t *p_vout;
1667     subpicture_t *p_spu;
1668
1669     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1670     {
1671         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1672         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1673         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1674
1675         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1676         if( p_vout && p_owner->p_spu_vout == p_vout )
1677         {
1678             /* Preroll does not work very well with subtitle */
1679             if( p_spu->i_start > 0 &&
1680                 p_spu->i_start < p_owner->i_preroll_end &&
1681                 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1682             {
1683                 subpicture_Delete( p_spu );
1684             }
1685             else
1686             {
1687                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1688             }
1689         }
1690         else
1691         {
1692             subpicture_Delete( p_spu );
1693         }
1694         if( p_vout )
1695             vlc_object_release( p_vout );
1696     }
1697
1698     if( b_flush && p_owner->p_spu_vout )
1699     {
1700         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1701
1702         if( p_vout && p_owner->p_spu_vout == p_vout )
1703             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1704                          p_owner->i_spu_channel );
1705
1706         if( p_vout )
1707             vlc_object_release( p_vout );
1708     }
1709 }
1710
1711 /**
1712  * Decode a block
1713  *
1714  * \param p_dec the decoder object
1715  * \param p_block the block to decode
1716  * \return VLC_SUCCESS or an error code
1717  */
1718 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1719 {
1720     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1721     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1722
1723     if( p_block && p_block->i_buffer <= 0 )
1724     {
1725         assert( !b_flush_request );
1726         block_Release( p_block );
1727         return VLC_SUCCESS;
1728     }
1729
1730 #ifdef ENABLE_SOUT
1731     if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1732     {
1733         if( p_block )
1734             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1735
1736         DecoderProcessSout( p_dec, p_block );
1737     }
1738     else
1739 #endif
1740     {
1741         bool b_flush = false;
1742
1743         if( p_block )
1744         {
1745             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1746             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1747
1748             b_flush = !b_flushing && b_flush_request;
1749
1750             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1751         }
1752
1753         if( p_dec->fmt_in.i_cat == AUDIO_ES )
1754         {
1755             DecoderProcessAudio( p_dec, p_block, b_flush );
1756         }
1757         else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1758         {
1759             DecoderProcessVideo( p_dec, p_block, b_flush );
1760         }
1761         else if( p_dec->fmt_in.i_cat == SPU_ES )
1762         {
1763             DecoderProcessSpu( p_dec, p_block, b_flush );
1764         }
1765         else
1766         {
1767             msg_Err( p_dec, "unknown ES format" );
1768             p_dec->b_error = true;
1769         }
1770     }
1771
1772     /* */
1773     if( b_flush_request )
1774     {
1775         vlc_mutex_lock( &p_owner->lock );
1776         DecoderFlushBuffering( p_dec );
1777         vlc_mutex_unlock( &p_owner->lock );
1778
1779         DecoderSignalFlushed( p_dec );
1780     }
1781
1782     return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1783 }
1784
1785 /**
1786  * Destroys a decoder object
1787  *
1788  * \param p_dec the decoder object
1789  * \return nothing
1790  */
1791 static void DeleteDecoder( decoder_t * p_dec )
1792 {
1793     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1794
1795     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1796              (char*)&p_dec->fmt_in.i_codec,
1797              (unsigned)block_FifoCount( p_owner->p_fifo ) );
1798
1799     /* Free all packets still in the decoder fifo. */
1800     block_FifoEmpty( p_owner->p_fifo );
1801     block_FifoRelease( p_owner->p_fifo );
1802
1803     /* */
1804     vlc_mutex_lock( &p_owner->lock );
1805     DecoderFlushBuffering( p_dec );
1806     vlc_mutex_unlock( &p_owner->lock );
1807
1808     /* Cleanup */
1809     if( p_owner->p_aout_input )
1810         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1811     if( p_owner->p_aout )
1812     {
1813         vlc_object_release( p_owner->p_aout );
1814         p_owner->p_aout = NULL;
1815     }
1816     if( p_owner->p_vout )
1817     {
1818         /* Hack to make sure all the the pictures are freed by the decoder */
1819         vout_FixLeaks( p_owner->p_vout, true );
1820
1821         /* We are about to die. Reattach video output to p_vlc. */
1822         vout_Request( p_dec, p_owner->p_vout, NULL );
1823         var_SetBool( p_owner->p_input, "intf-change-vout", true );
1824     }
1825
1826 #ifdef ENABLE_SOUT
1827     if( p_owner->p_sout_input )
1828     {
1829         sout_InputDelete( p_owner->p_sout_input );
1830         es_format_Clean( &p_owner->sout );
1831     }
1832 #endif
1833
1834     if( p_dec->fmt_in.i_cat == SPU_ES )
1835     {
1836         vout_thread_t *p_vout;
1837
1838         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1839         if( p_vout && p_owner->p_spu_vout == p_vout )
1840         {
1841             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1842                          p_owner->i_spu_channel );
1843             vlc_object_release( p_vout );
1844         }
1845     }
1846
1847     es_format_Clean( &p_dec->fmt_in );
1848     es_format_Clean( &p_dec->fmt_out );
1849
1850     if( p_owner->p_packetizer )
1851     {
1852         module_unneed( p_owner->p_packetizer,
1853                        p_owner->p_packetizer->p_module );
1854         es_format_Clean( &p_owner->p_packetizer->fmt_in );
1855         es_format_Clean( &p_owner->p_packetizer->fmt_out );
1856         vlc_object_detach( p_owner->p_packetizer );
1857         vlc_object_release( p_owner->p_packetizer );
1858     }
1859
1860     vlc_cond_destroy( &p_owner->wait );
1861     vlc_mutex_destroy( &p_owner->lock );
1862
1863     vlc_object_detach( p_dec );
1864
1865     free( p_owner );
1866 }
1867
1868 /*****************************************************************************
1869  * Buffers allocation callbacks for the decoders
1870  *****************************************************************************/
1871 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1872 {
1873     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1874     aout_buffer_t *p_buffer;
1875
1876     if( p_owner->p_aout_input != NULL &&
1877         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1878           p_dec->fmt_out.audio.i_original_channels !=
1879               p_owner->audio.i_original_channels ||
1880           p_dec->fmt_out.audio.i_bytes_per_frame !=
1881               p_owner->audio.i_bytes_per_frame ) )
1882     {
1883         aout_input_t *p_aout_input = p_owner->p_aout_input;
1884
1885         /* Parameters changed, restart the aout */
1886         vlc_mutex_lock( &p_owner->lock );
1887
1888         DecoderFlushBuffering( p_dec );
1889
1890         p_owner->p_aout_input = NULL;
1891         aout_DecDelete( p_owner->p_aout, p_aout_input );
1892
1893         vlc_mutex_unlock( &p_owner->lock );
1894     }
1895
1896     if( p_owner->p_aout_input == NULL )
1897     {
1898         const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1899         audio_sample_format_t format;
1900         aout_input_t *p_aout_input;
1901         aout_instance_t *p_aout;
1902
1903         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1904         p_owner->audio = p_dec->fmt_out.audio;
1905
1906         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1907         if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1908                                     == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1909         {
1910             if ( i_force_dolby == 1 )
1911             {
1912                 format.i_original_channels = format.i_original_channels |
1913                                              AOUT_CHAN_DOLBYSTEREO;
1914             }
1915             else /* i_force_dolby == 2 */
1916             {
1917                 format.i_original_channels = format.i_original_channels &
1918                                              ~AOUT_CHAN_DOLBYSTEREO;
1919             }
1920         }
1921
1922         p_aout = p_owner->p_aout;
1923         p_aout_input = aout_DecNew( p_dec, &p_aout,
1924                                     &format, &p_dec->fmt_out.audio_replay_gain );
1925
1926         vlc_mutex_lock( &p_owner->lock );
1927         p_owner->p_aout = p_aout;
1928         p_owner->p_aout_input = p_aout_input;
1929         vlc_mutex_unlock( &p_owner->lock );
1930
1931         if( p_owner->p_aout_input == NULL )
1932         {
1933             msg_Err( p_dec, "failed to create audio output" );
1934             p_dec->b_error = true;
1935             return NULL;
1936         }
1937         p_dec->fmt_out.audio.i_bytes_per_frame =
1938             p_owner->audio.i_bytes_per_frame;
1939     }
1940
1941     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1942
1943     return p_buffer;
1944 }
1945
1946 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1947 {
1948     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1949
1950     aout_DecDeleteBuffer( p_owner->p_aout,
1951                           p_owner->p_aout_input, p_buffer );
1952 }
1953
1954
1955 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1956
1957 static picture_t *vout_new_buffer( decoder_t *p_dec )
1958 {
1959     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1960
1961     if( p_owner->p_vout == NULL ||
1962         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
1963         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
1964         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
1965         p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
1966     {
1967         vout_thread_t *p_vout;
1968
1969         if( !p_dec->fmt_out.video.i_width ||
1970             !p_dec->fmt_out.video.i_height )
1971         {
1972             /* Can't create a new vout without display size */
1973             return NULL;
1974         }
1975
1976         if( !p_dec->fmt_out.video.i_visible_width ||
1977             !p_dec->fmt_out.video.i_visible_height )
1978         {
1979             if( p_dec->fmt_in.video.i_visible_width &&
1980                 p_dec->fmt_in.video.i_visible_height )
1981             {
1982                 p_dec->fmt_out.video.i_visible_width =
1983                     p_dec->fmt_in.video.i_visible_width;
1984                 p_dec->fmt_out.video.i_visible_height =
1985                     p_dec->fmt_in.video.i_visible_height;
1986             }
1987             else
1988             {
1989                 p_dec->fmt_out.video.i_visible_width =
1990                     p_dec->fmt_out.video.i_width;
1991                 p_dec->fmt_out.video.i_visible_height =
1992                     p_dec->fmt_out.video.i_height;
1993             }
1994         }
1995
1996         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1997             var_CreateGetBool( p_dec, "hdtv-fix" ) )
1998         {
1999             p_dec->fmt_out.video.i_visible_height = 1080;
2000             p_dec->fmt_out.video.i_sar_num *= 135;
2001             p_dec->fmt_out.video.i_sar_den *= 136;
2002             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2003         }
2004
2005         if( !p_dec->fmt_out.video.i_sar_num ||
2006             !p_dec->fmt_out.video.i_sar_den )
2007         {
2008             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2009               p_dec->fmt_out.video.i_visible_height;
2010
2011             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2012               p_dec->fmt_out.video.i_visible_width;
2013         }
2014
2015         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2016                      &p_dec->fmt_out.video.i_sar_den,
2017                      p_dec->fmt_out.video.i_sar_num,
2018                      p_dec->fmt_out.video.i_sar_den, 50000 );
2019
2020         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2021         p_owner->video = p_dec->fmt_out.video;
2022
2023         vlc_mutex_lock( &p_owner->lock );
2024
2025         DecoderFlushBuffering( p_dec );
2026
2027         p_vout = p_owner->p_vout;
2028         p_owner->p_vout = NULL;
2029         vlc_mutex_unlock( &p_owner->lock );
2030
2031         p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2032
2033         vlc_mutex_lock( &p_owner->lock );
2034         p_owner->p_vout = p_vout;
2035         vlc_mutex_unlock( &p_owner->lock );
2036
2037         var_SetBool( p_owner->p_input, "intf-change-vout", true );
2038         if( p_vout == NULL )
2039         {
2040             msg_Err( p_dec, "failed to create video output" );
2041             p_dec->b_error = true;
2042             return NULL;
2043         }
2044
2045         if( p_owner->video.i_rmask )
2046             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2047         if( p_owner->video.i_gmask )
2048             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2049         if( p_owner->video.i_bmask )
2050             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2051     }
2052
2053     /* Get a new picture
2054      */
2055     for( ;; )
2056     {
2057         picture_t *p_picture;
2058
2059         if( p_dec->b_die || p_dec->b_error )
2060             return NULL;
2061
2062         /* The video filter chain required that there is always 1 free buffer
2063          * that it will use as temporary one. It will release the temporary
2064          * buffer once its work is done, so this check is safe even if we don't
2065          * lock around both count() and create().
2066          */
2067         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2068         {
2069             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2070             if( p_picture )
2071                 return p_picture;
2072         }
2073
2074         if( DecoderIsFlushing( p_dec ) )
2075             return NULL;
2076
2077         /* */
2078         DecoderSignalBuffering( p_dec, true );
2079
2080         /* Check the decoder doesn't leak pictures */
2081         vout_FixLeaks( p_owner->p_vout, false );
2082
2083         msleep( VOUT_OUTMEM_SLEEP );
2084     }
2085 }
2086
2087 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2088 {
2089     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2090 }
2091
2092 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2093 {
2094     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2095 }
2096
2097 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2098 {
2099     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2100 }
2101
2102 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2103 {
2104     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2105     vout_thread_t *p_vout = NULL;
2106     subpicture_t *p_subpic;
2107     int i_attempts = 30;
2108
2109     while( i_attempts-- )
2110     {
2111         if( p_dec->b_die || p_dec->b_error )
2112             break;
2113
2114         p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2115         if( p_vout )
2116             break;
2117
2118         msleep( VOUT_DISPLAY_DELAY );
2119     }
2120
2121     if( !p_vout )
2122     {
2123         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2124         return NULL;
2125     }
2126
2127     if( p_owner->p_spu_vout != p_vout )
2128     {
2129         vlc_mutex_lock( &p_owner->lock );
2130
2131         DecoderFlushBuffering( p_dec );
2132
2133         vlc_mutex_unlock( &p_owner->lock );
2134
2135         spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2136                      &p_owner->i_spu_channel );
2137         p_owner->i_spu_order = 0;
2138         p_owner->p_spu_vout = p_vout;
2139     }
2140
2141     p_subpic = subpicture_New();
2142     if( p_subpic )
2143     {
2144         p_subpic->i_channel = p_owner->i_spu_channel;
2145         p_subpic->i_order = p_owner->i_spu_order++;
2146         p_subpic->b_subtitle = true;
2147     }
2148
2149     vlc_object_release( p_vout );
2150
2151     return p_subpic;
2152 }
2153
2154 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2155 {
2156     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2157     vout_thread_t *p_vout = NULL;
2158
2159     p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2160     if( !p_vout || p_owner->p_spu_vout != p_vout )
2161     {
2162         if( p_vout )
2163             vlc_object_release( p_vout );
2164         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2165         return;
2166     }
2167
2168     subpicture_Delete( p_subpic );
2169
2170     vlc_object_release( p_vout );
2171 }
2172