838542204b55c331ffc10fa2d9880c18c5d9505e
[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 #include <vlc_meta.h>
43 #include <vlc_dialog.h>
44
45 #include "audio_output/aout_internal.h"
46 #include "stream_output/stream_output.h"
47 #include "input_internal.h"
48 #include "clock.h"
49 #include "decoder.h"
50 #include "event.h"
51 #include "resource.h"
52
53 #include "../video_output/vout_control.h"
54
55 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, bool,
56                                  sout_instance_t *p_sout );
57 static void       DeleteDecoder( decoder_t * );
58
59 static void      *DecoderThread( vlc_object_t * );
60 static void       DecoderProcess( decoder_t *, block_t * );
61 static void       DecoderError( decoder_t *p_dec, block_t *p_block );
62 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
63 static void       DecoderFlush( decoder_t * );
64 static void       DecoderSignalBuffering( decoder_t *, bool );
65 static void       DecoderFlushBuffering( decoder_t * );
66
67 static void       DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
68
69 /* Buffers allocation callbacks for the decoders */
70 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
71 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
72
73 static picture_t *vout_new_buffer( decoder_t * );
74 static void vout_del_buffer( decoder_t *, picture_t * );
75 static void vout_link_picture( decoder_t *, picture_t * );
76 static void vout_unlink_picture( decoder_t *, picture_t * );
77
78 static subpicture_t *spu_new_buffer( decoder_t * );
79 static void spu_del_buffer( decoder_t *, subpicture_t * );
80
81 struct decoder_owner_sys_t
82 {
83     int64_t         i_preroll_end;
84
85     input_thread_t  *p_input;
86     input_clock_t   *p_clock;
87     int             i_last_rate;
88
89     vout_thread_t   *p_spu_vout;
90     int              i_spu_channel;
91     int64_t          i_spu_order;
92
93     sout_instance_t         *p_sout;
94     sout_packetizer_input_t *p_sout_input;
95
96     /* Some decoders require already packetized data (ie. not truncated) */
97     decoder_t *p_packetizer;
98     bool b_packetizer;
99
100     /* Current format in use by the output */
101     video_format_t video;
102     audio_format_t audio;
103     es_format_t    sout;
104
105     /* */
106     bool           b_fmt_description;
107     es_format_t    fmt_description;
108     vlc_meta_t     *p_description;
109
110     /* fifo */
111     block_fifo_t *p_fifo;
112
113     /* Lock for communication with decoder thread */
114     vlc_mutex_t lock;
115     vlc_cond_t  wait_request;
116     vlc_cond_t  wait_acknowledge;
117
118     /* -- These variables need locking on write(only) -- */
119     aout_instance_t *p_aout;
120     aout_input_t    *p_aout_input;
121
122     vout_thread_t   *p_vout;
123
124     /* -- Theses variables need locking on read *and* write -- */
125     /* */
126     /* Pause */
127     bool b_paused;
128     struct
129     {
130         mtime_t i_date;
131         int     i_ignore;
132     } pause;
133
134     /* Buffering */
135     bool b_buffering;
136     struct
137     {
138         bool b_first;
139         bool b_full;
140         int  i_count;
141
142         picture_t     *p_picture;
143         picture_t     **pp_picture_next;
144
145         subpicture_t  *p_subpic;
146         subpicture_t  **pp_subpic_next;
147
148         aout_buffer_t *p_audio;
149         aout_buffer_t **pp_audio_next;
150
151         block_t       *p_block;
152         block_t       **pp_block_next;
153     } buffer;
154
155     /* Flushing */
156     bool b_flushing;
157
158     /* CC */
159     struct
160     {
161         bool b_supported;
162         bool pb_present[4];
163         decoder_t *pp_decoder[4];
164     } cc;
165
166     /* Delay */
167     mtime_t i_ts_delay;
168 };
169
170 #define DECODER_MAX_BUFFERING_COUNT (4)
171 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
172 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
173
174 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
175  * a bogus PTS and won't be displayed */
176 #define DECODER_BOGUS_VIDEO_DELAY                ((mtime_t)(DEFAULT_PTS_DELAY * 30))
177
178 /* */
179 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
180
181
182 /*****************************************************************************
183  * Public functions
184  *****************************************************************************/
185 picture_t *decoder_NewPicture( decoder_t *p_decoder )
186 {
187     picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
188     if( !p_picture )
189         msg_Warn( p_decoder, "can't get output picture" );
190     return p_picture;
191 }
192 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
193 {
194     p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
195 }
196 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
197 {
198     p_decoder->pf_picture_link( p_decoder, p_picture );
199 }
200 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
201 {
202     p_decoder->pf_picture_unlink( p_decoder, p_picture );
203 }
204
205 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
206 {
207     if( !p_decoder->pf_aout_buffer_new )
208         return NULL;
209     return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
210 }
211 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
212 {
213     p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
214 }
215
216 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
217 {
218     subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
219     if( !p_subpicture )
220         msg_Warn( p_decoder, "can't get output subpicture" );
221     return p_subpicture;
222 }
223 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
224 {
225     p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
226 }
227
228 /* decoder_GetInputAttachments:
229  */
230 int decoder_GetInputAttachments( decoder_t *p_dec,
231                                  input_attachment_t ***ppp_attachment,
232                                  int *pi_attachment )
233 {
234     if( !p_dec->pf_get_attachments )
235         return VLC_EGENERIC;
236
237     return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
238 }
239 /* decoder_GetDisplayDate:
240  */
241 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
242 {
243     if( !p_dec->pf_get_display_date )
244         return VLC_TS_INVALID;
245
246     return p_dec->pf_get_display_date( p_dec, i_ts );
247 }
248 /* decoder_GetDisplayRate:
249  */
250 int decoder_GetDisplayRate( decoder_t *p_dec )
251 {
252     if( !p_dec->pf_get_display_rate )
253         return INPUT_RATE_DEFAULT;
254
255     return p_dec->pf_get_display_rate( p_dec );
256 }
257
258 /**
259  * Spawns a new decoder thread
260  *
261  * \param p_input the input thread
262  * \param p_es the es descriptor
263  * \return the spawned decoder object
264  */
265 decoder_t *input_DecoderNew( input_thread_t *p_input,
266                              es_format_t *fmt, input_clock_t *p_clock,
267                              sout_instance_t *p_sout  )
268 {
269     decoder_t *p_dec = NULL;
270     const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
271     int i_priority;
272
273     /* Create the decoder configuration structure */
274     p_dec = CreateDecoder( p_input, fmt, p_sout != NULL, p_sout );
275     if( p_dec == NULL )
276     {
277         msg_Err( p_input, "could not create %s", psz_type );
278         dialog_Fatal( p_input, _("Streaming / Transcoding failed"),
279                       _("VLC could not open the %s module."),
280                       vlc_gettext( psz_type ) );
281         return NULL;
282     }
283
284     if( !p_dec->p_module )
285     {
286         DecoderUnsupportedCodec( p_dec, fmt->i_codec );
287
288         DeleteDecoder( p_dec );
289         vlc_object_release( p_dec );
290         return NULL;
291     }
292
293     p_dec->p_owner->p_clock = p_clock;
294     assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
295
296     if( p_dec->fmt_out.i_cat == AUDIO_ES )
297         i_priority = VLC_THREAD_PRIORITY_AUDIO;
298     else
299         i_priority = VLC_THREAD_PRIORITY_VIDEO;
300
301     /* Spawn the decoder thread */
302     if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
303     {
304         msg_Err( p_dec, "cannot spawn decoder thread" );
305         module_unneed( p_dec, p_dec->p_module );
306         DeleteDecoder( p_dec );
307         vlc_object_release( p_dec );
308         return NULL;
309     }
310
311     return p_dec;
312 }
313
314 /**
315  * Kills a decoder thread and waits until it's finished
316  *
317  * \param p_input the input thread
318  * \param p_es the es descriptor
319  * \return nothing
320  */
321 void input_DecoderDelete( decoder_t *p_dec )
322 {
323     decoder_owner_sys_t *p_owner = p_dec->p_owner;
324
325     vlc_object_kill( p_dec );
326
327     /* Make sure we aren't paused/buffering/waiting anymore */
328     vlc_mutex_lock( &p_owner->lock );
329     const bool b_was_paused = p_owner->b_paused;
330     p_owner->b_paused = false;
331     p_owner->b_buffering = false;
332     p_owner->b_flushing = true;
333     vlc_cond_signal( &p_owner->wait_request );
334     vlc_mutex_unlock( &p_owner->lock );
335
336     vlc_thread_join( p_dec );
337     p_owner->b_paused = b_was_paused;
338
339     module_unneed( p_dec, p_dec->p_module );
340
341     /* */
342     if( p_dec->p_owner->cc.b_supported )
343     {
344         int i;
345         for( i = 0; i < 4; i++ )
346             input_DecoderSetCcState( p_dec, false, i );
347     }
348
349     /* Delete decoder configuration */
350     DeleteDecoder( p_dec );
351
352     /* Delete the decoder */
353     vlc_object_release( p_dec );
354 }
355
356 /**
357  * Put a block_t in the decoder's fifo.
358  * Thread-safe w.r.t. the decoder. May be a cancellation point.
359  *
360  * \param p_dec the decoder object
361  * \param p_block the data block
362  */
363 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
364 {
365     decoder_owner_sys_t *p_owner = p_dec->p_owner;
366
367     if( b_do_pace )
368     {
369         /* The fifo is not consummed when buffering and so will
370          * deadlock vlc.
371          * There is no need to lock as b_buffering is never modify
372          * inside decoder thread. */
373         if( !p_owner->b_buffering )
374             block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
375     }
376     else if( block_FifoSize( p_owner->p_fifo ) > 400000000 /* 400 MB, ie ~ 50mb/s for 60s */ )
377     {
378         /* FIXME: ideally we would check the time amount of data
379          * in the FIFO instead of its size. */
380         msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
381                   "consumed quickly enough), resetting fifo!" );
382         block_FifoEmpty( p_owner->p_fifo );
383     }
384
385     block_FifoPut( p_owner->p_fifo, p_block );
386 }
387
388 bool input_DecoderIsEmpty( decoder_t * p_dec )
389 {
390     assert( !p_dec->p_owner->b_buffering );
391
392     /* FIXME that's not really true */
393     return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
394 }
395
396 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
397 {
398     decoder_owner_sys_t *p_owner = p_dec->p_owner;
399     int i;
400
401     vlc_mutex_lock( &p_owner->lock );
402     for( i = 0; i < 4; i++ )
403         pb_present[i] =  p_owner->cc.pb_present[i];
404     vlc_mutex_unlock( &p_owner->lock );
405 }
406 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
407 {
408     decoder_owner_sys_t *p_owner = p_dec->p_owner;
409
410     //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
411
412     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
413         return VLC_EGENERIC;
414
415     if( b_decode )
416     {
417         static const vlc_fourcc_t fcc[4] = {
418             VLC_FOURCC('c', 'c', '1', ' '),
419             VLC_FOURCC('c', 'c', '2', ' '),
420             VLC_FOURCC('c', 'c', '3', ' '),
421             VLC_FOURCC('c', 'c', '4', ' '),
422         };
423         decoder_t *p_cc;
424         es_format_t fmt;
425
426         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
427         p_cc = CreateDecoder( p_owner->p_input, &fmt, false, p_owner->p_sout );
428         if( !p_cc )
429         {
430             msg_Err( p_dec, "could not create decoder" );
431             dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
432                           _("VLC could not open the decoder module.") );
433             return VLC_EGENERIC;
434         }
435         else if( !p_cc->p_module )
436         {
437             DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
438             DeleteDecoder( p_cc );
439             vlc_object_release( p_cc );
440             return VLC_EGENERIC;
441         }
442         p_cc->p_owner->p_clock = p_owner->p_clock;
443
444         vlc_mutex_lock( &p_owner->lock );
445         p_owner->cc.pp_decoder[i_channel] = p_cc;
446         vlc_mutex_unlock( &p_owner->lock );
447     }
448     else
449     {
450         decoder_t *p_cc;
451
452         vlc_mutex_lock( &p_owner->lock );
453         p_cc = p_owner->cc.pp_decoder[i_channel];
454         p_owner->cc.pp_decoder[i_channel] = NULL;
455         vlc_mutex_unlock( &p_owner->lock );
456
457         if( p_cc )
458         {
459             vlc_object_kill( p_cc );
460             module_unneed( p_cc, p_cc->p_module );
461             DeleteDecoder( p_cc );
462             vlc_object_release( p_cc );
463         }
464     }
465     return VLC_SUCCESS;
466 }
467 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
468 {
469     decoder_owner_sys_t *p_owner = p_dec->p_owner;
470
471     *pb_decode = false;
472     if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
473         return VLC_EGENERIC;
474
475     vlc_mutex_lock( &p_owner->lock );
476     *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
477     vlc_mutex_unlock( &p_owner->lock );
478     return VLC_EGENERIC;
479 }
480
481 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
482 {
483     decoder_owner_sys_t *p_owner = p_dec->p_owner;
484
485     vlc_mutex_lock( &p_owner->lock );
486
487     assert( !p_owner->b_paused || !b_paused );
488
489     p_owner->b_paused = b_paused;
490     p_owner->pause.i_date = i_date;
491     p_owner->pause.i_ignore = 0;
492     vlc_cond_signal( &p_owner->wait_request );
493
494     DecoderOutputChangePause( p_dec, b_paused, i_date );
495
496     vlc_mutex_unlock( &p_owner->lock );
497 }
498
499 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
500 {
501     decoder_owner_sys_t *p_owner = p_dec->p_owner;
502
503     vlc_mutex_lock( &p_owner->lock );
504     p_owner->i_ts_delay = i_delay;
505     vlc_mutex_unlock( &p_owner->lock );
506 }
507
508 void input_DecoderStartBuffering( decoder_t *p_dec )
509 {
510     decoder_owner_sys_t *p_owner = p_dec->p_owner;
511
512     vlc_mutex_lock( &p_owner->lock );
513
514     DecoderFlush( p_dec );
515
516     p_owner->buffer.b_first = true;
517     p_owner->buffer.b_full = false;
518     p_owner->buffer.i_count = 0;
519
520     assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
521             !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
522
523     p_owner->buffer.p_picture = NULL;
524     p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
525
526     p_owner->buffer.p_subpic = NULL;
527     p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
528
529     p_owner->buffer.p_audio = NULL;
530     p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
531
532     p_owner->buffer.p_block = NULL;
533     p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
534
535
536     p_owner->b_buffering = true;
537
538     vlc_cond_signal( &p_owner->wait_request );
539
540     vlc_mutex_unlock( &p_owner->lock );
541 }
542
543 void input_DecoderStopBuffering( decoder_t *p_dec )
544 {
545     decoder_owner_sys_t *p_owner = p_dec->p_owner;
546
547     vlc_mutex_lock( &p_owner->lock );
548
549     p_owner->b_buffering = false;
550
551     vlc_cond_signal( &p_owner->wait_request );
552
553     vlc_mutex_unlock( &p_owner->lock );
554 }
555
556 void input_DecoderWaitBuffering( decoder_t *p_dec )
557 {
558     decoder_owner_sys_t *p_owner = p_dec->p_owner;
559
560     vlc_mutex_lock( &p_owner->lock );
561
562     while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
563     {
564         block_FifoWake( p_owner->p_fifo );
565         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
566     }
567
568     vlc_mutex_unlock( &p_owner->lock );
569 }
570
571 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
572 {
573     decoder_owner_sys_t *p_owner = p_dec->p_owner;
574
575     *pi_duration = 0;
576
577     vlc_mutex_lock( &p_owner->lock );
578     if( p_dec->fmt_out.i_cat == VIDEO_ES )
579     {
580         if( p_owner->b_paused && p_owner->p_vout )
581         {
582             vout_NextPicture( p_owner->p_vout, pi_duration );
583             p_owner->pause.i_ignore++;
584             vlc_cond_signal( &p_owner->wait_request );
585         }
586     }
587     else
588     {
589         /* TODO subtitle should not be flushed */
590         DecoderFlush( p_dec );
591     }
592     vlc_mutex_unlock( &p_owner->lock );
593 }
594
595 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
596 {
597     decoder_owner_sys_t *p_owner = p_dec->p_owner;
598     bool b_changed;
599
600     vlc_mutex_lock( &p_owner->lock );
601     b_changed = p_owner->b_fmt_description;
602     if( b_changed )
603     {
604         if( p_fmt )
605             es_format_Copy( p_fmt, &p_owner->fmt_description );
606
607         if( pp_meta )
608         {
609             *pp_meta = NULL;
610             if( p_owner->p_description )
611             {
612                 *pp_meta = vlc_meta_New();
613                 if( *pp_meta )
614                     vlc_meta_Merge( *pp_meta, p_owner->p_description );
615             }
616         }
617         p_owner->b_fmt_description = false;
618     }
619     vlc_mutex_unlock( &p_owner->lock );
620     return b_changed;
621 }
622
623 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
624 {
625     decoder_owner_sys_t *p_owner = p_dec->p_owner;
626
627     return block_FifoSize( p_owner->p_fifo );
628 }
629
630 /*****************************************************************************
631  * Internal functions
632  *****************************************************************************/
633 static int DecoderGetInputAttachments( decoder_t *p_dec,
634                                        input_attachment_t ***ppp_attachment,
635                                        int *pi_attachment )
636 {
637     return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
638                           ppp_attachment, pi_attachment );
639 }
640 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
641 {
642     decoder_owner_sys_t *p_owner = p_dec->p_owner;
643
644     vlc_mutex_lock( &p_owner->lock );
645     if( p_owner->b_buffering || p_owner->b_paused )
646         i_ts = VLC_TS_INVALID;
647     vlc_mutex_unlock( &p_owner->lock );
648
649     if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
650         return i_ts;
651
652     if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
653         return VLC_TS_INVALID;
654
655     return i_ts;
656 }
657 static int DecoderGetDisplayRate( decoder_t *p_dec )
658 {
659     decoder_owner_sys_t *p_owner = p_dec->p_owner;
660
661     if( !p_owner->p_clock )
662         return INPUT_RATE_DEFAULT;
663     return input_clock_GetRate( p_owner->p_clock );
664 }
665
666 /* */
667 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
668 {
669     msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
670              "VLC probably does not support this sound or video format.",
671              (char*)&codec );
672     dialog_Fatal( p_dec, _("No suitable decoder module"),
673                  _("VLC does not support the audio or video format \"%4.4s\". "
674                   "Unfortunately there is no way for you to fix this."),
675                   (char*)&codec );
676 }
677
678
679 /**
680  * Create a decoder object
681  *
682  * \param p_input the input thread
683  * \param p_es the es descriptor
684  * \param b_packetizer instead of a decoder
685  * \return the decoder object
686  */
687 static decoder_t * CreateDecoder( input_thread_t *p_input,
688                                   es_format_t *fmt, bool b_packetizer,
689                                   sout_instance_t *p_sout )
690 {
691     decoder_t *p_dec;
692     decoder_owner_sys_t *p_owner;
693     es_format_t null_es_format;
694
695     p_dec = vlc_object_create( p_input, VLC_OBJECT_DECODER );
696     if( p_dec == NULL )
697         return NULL;
698
699     p_dec->pf_decode_audio = NULL;
700     p_dec->pf_decode_video = NULL;
701     p_dec->pf_decode_sub = NULL;
702     p_dec->pf_get_cc = NULL;
703     p_dec->pf_packetize = NULL;
704
705     /* Initialize the decoder */
706     p_dec->p_module = NULL;
707
708     memset( &null_es_format, 0, sizeof(es_format_t) );
709     es_format_Copy( &p_dec->fmt_in, fmt );
710     es_format_Copy( &p_dec->fmt_out, &null_es_format );
711
712     p_dec->p_description = NULL;
713
714     /* Allocate our private structure for the decoder */
715     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
716     if( p_dec->p_owner == NULL )
717     {
718         vlc_object_release( p_dec );
719         return NULL;
720     }
721     p_dec->p_owner->i_preroll_end = VLC_TS_INVALID;
722     p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
723     p_dec->p_owner->p_input = p_input;
724     p_dec->p_owner->p_aout = NULL;
725     p_dec->p_owner->p_aout_input = NULL;
726     p_dec->p_owner->p_vout = NULL;
727     p_dec->p_owner->p_spu_vout = NULL;
728     p_dec->p_owner->i_spu_channel = 0;
729     p_dec->p_owner->i_spu_order = 0;
730     p_dec->p_owner->p_sout = p_sout;
731     p_dec->p_owner->p_sout_input = NULL;
732     p_dec->p_owner->p_packetizer = NULL;
733     p_dec->p_owner->b_packetizer = b_packetizer;
734
735     /* decoder fifo */
736     if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
737     {
738         free( p_dec->p_owner );
739         vlc_object_release( p_dec );
740         return NULL;
741     }
742
743     /* Set buffers allocation callbacks for the decoders */
744     p_dec->pf_aout_buffer_new = aout_new_buffer;
745     p_dec->pf_aout_buffer_del = aout_del_buffer;
746     p_dec->pf_vout_buffer_new = vout_new_buffer;
747     p_dec->pf_vout_buffer_del = vout_del_buffer;
748     p_dec->pf_picture_link    = vout_link_picture;
749     p_dec->pf_picture_unlink  = vout_unlink_picture;
750     p_dec->pf_spu_buffer_new  = spu_new_buffer;
751     p_dec->pf_spu_buffer_del  = spu_del_buffer;
752     /* */
753     p_dec->pf_get_attachments  = DecoderGetInputAttachments;
754     p_dec->pf_get_display_date = DecoderGetDisplayDate;
755     p_dec->pf_get_display_rate = DecoderGetDisplayRate;
756
757     vlc_object_attach( p_dec, p_input );
758
759     /* Find a suitable decoder/packetizer module */
760     if( !b_packetizer )
761         p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
762     else
763         p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
764
765     /* Check if decoder requires already packetized data */
766     if( !b_packetizer &&
767         p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
768     {
769         p_dec->p_owner->p_packetizer =
770             vlc_object_create( p_input, VLC_OBJECT_DECODER );
771         if( p_dec->p_owner->p_packetizer )
772         {
773             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
774                             &p_dec->fmt_in );
775
776             es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
777                             &null_es_format );
778
779             vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
780
781             p_dec->p_owner->p_packetizer->p_module =
782                 module_need( p_dec->p_owner->p_packetizer,
783                              "packetizer", "$packetizer", false );
784
785             if( !p_dec->p_owner->p_packetizer->p_module )
786             {
787                 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
788                 vlc_object_detach( p_dec->p_owner->p_packetizer );
789                 vlc_object_release( p_dec->p_owner->p_packetizer );
790             }
791         }
792     }
793
794     /* Copy ourself the input replay gain */
795     if( fmt->i_cat == AUDIO_ES )
796     {
797         for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
798         {
799             if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
800             {
801                 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
802                 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
803             }
804             if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
805             {
806                 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
807                 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
808             }
809         }
810     }
811
812     /* */
813     vlc_mutex_init( &p_owner->lock );
814     vlc_cond_init( &p_owner->wait_request );
815     vlc_cond_init( &p_owner->wait_acknowledge );
816
817     p_owner->b_fmt_description = false;
818     es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
819     p_owner->p_description = NULL;
820
821     p_owner->b_paused = false;
822     p_owner->pause.i_date = VLC_TS_INVALID;
823     p_owner->pause.i_ignore = 0;
824
825     p_owner->b_buffering = false;
826     p_owner->buffer.b_first = true;
827     p_owner->buffer.b_full = false;
828     p_owner->buffer.i_count = 0;
829     p_owner->buffer.p_picture = NULL;
830     p_owner->buffer.p_subpic = NULL;
831     p_owner->buffer.p_audio = NULL;
832     p_owner->buffer.p_block = NULL;
833
834     p_owner->b_flushing = false;
835
836     /* */
837     p_owner->cc.b_supported = false;
838     if( !b_packetizer )
839     {
840         if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
841             p_owner->cc.b_supported = true;
842         if( p_dec->pf_get_cc )
843             p_owner->cc.b_supported = true;
844     }
845
846     for( unsigned i = 0; i < 4; i++ )
847     {
848         p_owner->cc.pb_present[i] = false;
849         p_owner->cc.pp_decoder[i] = NULL;
850     }
851     p_owner->i_ts_delay = 0;
852     return p_dec;
853 }
854
855 /**
856  * The decoding main loop
857  *
858  * \param p_dec the decoder
859  */
860 static void *DecoderThread( vlc_object_t *p_this )
861 {
862     decoder_t *p_dec = (decoder_t *)p_this;
863     decoder_owner_sys_t *p_owner = p_dec->p_owner;
864
865     /* The decoder's main loop */
866     for( ;; )
867     {
868         block_t *p_block = block_FifoGet( p_owner->p_fifo );
869
870         /* Make sure there is no cancellation point other than this one^^.
871          * If you need one, be sure to push cleanup of p_block. */
872         DecoderSignalBuffering( p_dec, p_block == NULL );
873
874         if( p_block )
875         {
876             int canc = vlc_savecancel();
877
878             if( p_dec->b_error )
879                 DecoderError( p_dec, p_block );
880             else
881                 DecoderProcess( p_dec, p_block );
882
883             vlc_restorecancel( canc );
884         }
885     }
886     return NULL;
887 }
888
889 static block_t *DecoderBlockFlushNew()
890 {
891     block_t *p_null = block_Alloc( 128 );
892     if( !p_null )
893         return NULL;
894
895     p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
896                        BLOCK_FLAG_CORRUPTED |
897                        BLOCK_FLAG_CORE_FLUSH;
898     memset( p_null->p_buffer, 0, p_null->i_buffer );
899
900     return p_null;
901 }
902
903 static void DecoderFlush( decoder_t *p_dec )
904 {
905     decoder_owner_sys_t *p_owner = p_dec->p_owner;
906
907     vlc_assert_locked( &p_owner->lock );
908
909     /* Empty the fifo */
910     block_FifoEmpty( p_owner->p_fifo );
911
912     /* Monitor for flush end */
913     p_owner->b_flushing = true;
914     vlc_cond_signal( &p_owner->wait_request );
915
916     /* Send a special block */
917     block_t *p_null = DecoderBlockFlushNew();
918     if( !p_null )
919         return;
920     input_DecoderDecode( p_dec, p_null, false );
921
922     /* */
923     while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
924         vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
925 }
926
927 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
928 {
929     decoder_owner_sys_t *p_owner = p_dec->p_owner;
930
931     vlc_mutex_lock( &p_owner->lock );
932
933     if( p_owner->b_buffering )
934     {
935         if( b_full )
936             p_owner->buffer.b_full = true;
937         vlc_cond_signal( &p_owner->wait_acknowledge );
938     }
939
940     vlc_mutex_unlock( &p_owner->lock );
941 }
942
943 static bool DecoderIsFlushing( decoder_t *p_dec )
944 {
945     decoder_owner_sys_t *p_owner = p_dec->p_owner;
946     bool b_flushing;
947
948     vlc_mutex_lock( &p_owner->lock );
949
950     b_flushing = p_owner->b_flushing;
951
952     vlc_mutex_unlock( &p_owner->lock );
953
954     return b_flushing;
955 }
956
957 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
958 {
959     decoder_owner_sys_t *p_owner = p_dec->p_owner;
960
961     vlc_assert_locked( &p_owner->lock );
962
963     while( !p_owner->b_flushing )
964     {
965         if( p_owner->b_paused )
966         {
967             if( p_owner->b_buffering && !p_owner->buffer.b_full )
968                 break;
969             if( p_owner->pause.i_ignore > 0 )
970             {
971                 p_owner->pause.i_ignore--;
972                 break;
973             }
974         }
975         else
976         {
977             if( !p_owner->b_buffering || !p_owner->buffer.b_full )
978                 break;
979         }
980         vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
981     }
982
983     if( pb_reject )
984         *pb_reject = p_owner->b_flushing;
985 }
986
987 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
988 {
989     decoder_owner_sys_t *p_owner = p_dec->p_owner;
990
991     vlc_assert_locked( &p_owner->lock );
992
993     /* XXX only audio and video output have to be paused.
994      * - for sout it is useless
995      * - for subs, it is done by the vout
996      */
997     if( p_dec->fmt_out.i_cat == AUDIO_ES )
998     {
999         if( p_owner->p_aout && p_owner->p_aout_input )
1000             aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1001                                  b_paused, i_date );
1002     }
1003     else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1004     {
1005         if( p_owner->p_vout )
1006             vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1007     }
1008 }
1009 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1010 {
1011     if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1012         *pi_preroll = INT64_MAX;
1013     else if( p->i_dts > VLC_TS_INVALID )
1014         *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1015     else if( p->i_pts > VLC_TS_INVALID )
1016         *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1017 }
1018
1019 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1020 {
1021     mtime_t current_date = mdate();
1022
1023     /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1024     if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1025     {
1026         /* ETSI EN 300 472 Annex A : do not take into account the PTS
1027          * for teletext streams. */
1028         return current_date + 400000;
1029     }
1030     return i_ts;
1031 }
1032
1033 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1034                           mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1035 {
1036     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1037     input_clock_t   *p_clock = p_owner->p_clock;
1038
1039     vlc_assert_locked( &p_owner->lock );
1040
1041     const mtime_t i_es_delay = p_owner->i_ts_delay;
1042
1043     if( p_clock )
1044     {
1045         const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1046         int i_rate;
1047
1048         if( *pi_ts0 > VLC_TS_INVALID )
1049         {
1050             *pi_ts0 += i_es_delay;
1051             if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1052                 *pi_ts1 += i_es_delay;
1053             if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1054                 *pi_ts0 = VLC_TS_INVALID;
1055         }
1056         else
1057         {
1058             i_rate = input_clock_GetRate( p_clock );
1059         }
1060
1061         /* Do not create ephemere data because of rounding errors */
1062         if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1063             *pi_ts1 += 1;
1064
1065         if( pi_duration )
1066             *pi_duration = ( *pi_duration * i_rate +
1067                                     INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1068
1069         if( pi_rate )
1070             *pi_rate = i_rate;
1071
1072         if( b_telx )
1073         {
1074             *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1075             if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1076                 *pi_ts1 = *pi_ts0;
1077         }
1078     }
1079 }
1080
1081 /**
1082  * If *pb_reject, it does nothing, otherwise it waits for the given
1083  * deadline or a flush request (in which case it set *pi_reject to true.
1084  */
1085 static void DecoderWaitDate( decoder_t *p_dec,
1086                              bool *pb_reject, mtime_t i_deadline )
1087 {
1088     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1089
1090     if( *pb_reject || i_deadline < 0 )
1091         return;
1092
1093     for( ;; )
1094     {
1095         vlc_mutex_lock( &p_owner->lock );
1096         if( p_owner->b_flushing || p_dec->b_die )
1097         {
1098             *pb_reject = true;
1099             vlc_mutex_unlock( &p_owner->lock );
1100             break;
1101         }
1102         int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1103                                         i_deadline );
1104         vlc_mutex_unlock( &p_owner->lock );
1105         if( i_ret )
1106             break;
1107     }
1108 }
1109
1110 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1111                               int *pi_played_sum, int *pi_lost_sum )
1112 {
1113     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1114     aout_instance_t *p_aout = p_owner->p_aout;
1115     aout_input_t    *p_aout_input = p_owner->p_aout_input;
1116
1117     /* */
1118     if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1119     {
1120         msg_Warn( p_dec, "non-dated audio buffer received" );
1121         *pi_lost_sum += 1;
1122         aout_BufferFree( p_audio );
1123         return;
1124     }
1125
1126     /* */
1127     vlc_mutex_lock( &p_owner->lock );
1128
1129     if( p_owner->b_buffering || p_owner->buffer.p_audio )
1130     {
1131         p_audio->p_next = NULL;
1132
1133         *p_owner->buffer.pp_audio_next = p_audio;
1134         p_owner->buffer.pp_audio_next = &p_audio->p_next;
1135
1136         p_owner->buffer.i_count++;
1137         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1138             p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1139         {
1140             p_owner->buffer.b_full = true;
1141             vlc_cond_signal( &p_owner->wait_acknowledge );
1142         }
1143     }
1144
1145     for( ;; )
1146     {
1147         bool b_has_more = false;
1148         bool b_reject;
1149         DecoderWaitUnblock( p_dec, &b_reject );
1150
1151         if( p_owner->b_buffering )
1152         {
1153             vlc_mutex_unlock( &p_owner->lock );
1154             return;
1155         }
1156
1157         /* */
1158         if( p_owner->buffer.p_audio )
1159         {
1160             p_audio = p_owner->buffer.p_audio;
1161
1162             p_owner->buffer.p_audio = p_audio->p_next;
1163             p_owner->buffer.i_count--;
1164
1165             b_has_more = p_owner->buffer.p_audio != NULL;
1166             if( !b_has_more )
1167                 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1168         }
1169
1170         /* */
1171         const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1172         int i_rate = INPUT_RATE_DEFAULT;
1173
1174         DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1175                       &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1176
1177         vlc_mutex_unlock( &p_owner->lock );
1178
1179         if( !p_aout || !p_aout_input ||
1180             p_audio->i_pts <= VLC_TS_INVALID ||
1181             i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1182             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1183             b_reject = true;
1184
1185         DecoderWaitDate( p_dec, &b_reject,
1186                          p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1187
1188         if( !b_reject )
1189         {
1190             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1191                 *pi_played_sum += 1;
1192             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1193         }
1194         else
1195         {
1196             if( b_dated )
1197                 msg_Warn( p_aout, "received buffer in the future" );
1198             else
1199                 msg_Warn( p_dec, "non-dated audio buffer received" );
1200
1201             *pi_lost_sum += 1;
1202             aout_BufferFree( p_audio );
1203         }
1204
1205         if( !b_has_more )
1206             break;
1207
1208         vlc_mutex_lock( &p_owner->lock );
1209         if( !p_owner->buffer.p_audio )
1210         {
1211             vlc_mutex_unlock( &p_owner->lock );
1212             break;
1213         }
1214     }
1215 }
1216
1217 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1218 {
1219     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1220     input_thread_t  *p_input = p_owner->p_input;
1221     aout_buffer_t   *p_aout_buf;
1222     int i_decoded = 0;
1223     int i_lost = 0;
1224     int i_played = 0;
1225
1226     while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1227     {
1228         aout_instance_t *p_aout = p_owner->p_aout;
1229         aout_input_t    *p_aout_input = p_owner->p_aout_input;
1230
1231         if( p_dec->b_die )
1232         {
1233             /* It prevent freezing VLC in case of broken decoder */
1234             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1235             if( p_block )
1236                 block_Release( p_block );
1237             break;
1238         }
1239         i_decoded++;
1240
1241         if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1242             p_aout_buf->i_pts < p_owner->i_preroll_end )
1243         {
1244             aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1245             continue;
1246         }
1247
1248         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1249         {
1250             msg_Dbg( p_dec, "End of audio preroll" );
1251             if( p_owner->p_aout && p_owner->p_aout_input )
1252                 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1253             /* */
1254             p_owner->i_preroll_end = VLC_TS_INVALID;
1255         }
1256
1257         DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1258     }
1259
1260     /* Update ugly stat */
1261     if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1262     {
1263         vlc_mutex_lock( &p_input->p->counters.counters_lock);
1264
1265         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1266                              i_lost, NULL );
1267         stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1268                              i_played, NULL );
1269         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1270                              i_decoded, NULL );
1271
1272         vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1273     }
1274 }
1275 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1276 {
1277     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1278     block_t *p_cc;
1279     bool pb_present[4];
1280     bool b_processed = false;
1281     int i;
1282     int i_cc_decoder;
1283
1284     assert( p_dec_cc->pf_get_cc != NULL );
1285
1286     /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1287     if( !p_owner->cc.b_supported )
1288         return;
1289
1290     p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1291     if( !p_cc )
1292         return;
1293
1294     vlc_mutex_lock( &p_owner->lock );
1295     for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1296     {
1297         p_owner->cc.pb_present[i] |= pb_present[i];
1298         if( p_owner->cc.pp_decoder[i] )
1299             i_cc_decoder++;
1300     }
1301
1302     for( i = 0; i < 4; i++ )
1303     {
1304         if( !p_owner->cc.pp_decoder[i] )
1305             continue;
1306
1307         if( i_cc_decoder > 1 )
1308             DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1309         else
1310             DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1311         i_cc_decoder--;
1312         b_processed = true;
1313     }
1314     vlc_mutex_unlock( &p_owner->lock );
1315
1316     if( !b_processed )
1317         block_Release( p_cc );
1318 }
1319
1320 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1321                               int *pi_played_sum, int *pi_lost_sum )
1322 {
1323     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1324     vout_thread_t  *p_vout = p_owner->p_vout;
1325     bool b_first_buffered;
1326
1327     if( p_picture->date <= VLC_TS_INVALID )
1328     {
1329         msg_Warn( p_vout, "non-dated video buffer received" );
1330         *pi_lost_sum += 1;
1331         vout_DropPicture( p_vout, p_picture );
1332         return;
1333     }
1334
1335     /* */
1336     vlc_mutex_lock( &p_owner->lock );
1337
1338     if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1339     {
1340         p_picture->p_next = NULL;
1341
1342         *p_owner->buffer.pp_picture_next = p_picture;
1343         p_owner->buffer.pp_picture_next = &p_picture->p_next;
1344
1345         p_owner->buffer.i_count++;
1346         if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1347             p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1348         {
1349             p_owner->buffer.b_full = true;
1350             vlc_cond_signal( &p_owner->wait_acknowledge );
1351         }
1352     }
1353     b_first_buffered = p_owner->buffer.p_picture != NULL;
1354
1355     for( ;; b_first_buffered = false )
1356     {
1357         bool b_has_more = false;
1358
1359         bool b_reject;
1360
1361         DecoderWaitUnblock( p_dec, &b_reject );
1362
1363         if( p_owner->b_buffering && !p_owner->buffer.b_first )
1364         {
1365             vlc_mutex_unlock( &p_owner->lock );
1366             return;
1367         }
1368         bool b_buffering_first = p_owner->b_buffering;
1369
1370         /* */
1371         if( p_owner->buffer.p_picture )
1372         {
1373             p_picture = p_owner->buffer.p_picture;
1374
1375             p_owner->buffer.p_picture = p_picture->p_next;
1376             p_owner->buffer.i_count--;
1377
1378             b_has_more = p_owner->buffer.p_picture != NULL;
1379             if( !b_has_more )
1380                 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1381         }
1382
1383         /* */
1384         if( b_buffering_first )
1385         {
1386             assert( p_owner->buffer.b_first );
1387             assert( !p_owner->buffer.i_count );
1388             msg_Dbg( p_dec, "Received first picture" );
1389             p_owner->buffer.b_first = false;
1390             p_picture->b_force = true;
1391         }
1392
1393         const bool b_dated = p_picture->date > VLC_TS_INVALID;
1394         int i_rate = INPUT_RATE_DEFAULT;
1395         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1396                       &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1397
1398         vlc_mutex_unlock( &p_owner->lock );
1399
1400         /* */
1401         if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1402             b_reject = true;
1403
1404         if( !b_reject )
1405         {
1406             if( i_rate != p_owner->i_last_rate || b_first_buffered )
1407             {
1408                 /* Be sure to not display old picture after our own */
1409                 vout_Flush( p_vout, p_picture->date );
1410                 p_owner->i_last_rate = i_rate;
1411             }
1412             vout_DisplayPicture( p_vout, p_picture );
1413         }
1414         else
1415         {
1416             if( b_dated )
1417                 msg_Warn( p_vout, "early picture skipped" );
1418             else
1419                 msg_Warn( p_vout, "non-dated video buffer received" );
1420
1421             *pi_lost_sum += 1;
1422             vout_DropPicture( p_vout, p_picture );
1423         }
1424         int i_tmp_display;
1425         int i_tmp_lost;
1426         vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1427
1428         *pi_played_sum += i_tmp_display;
1429         *pi_lost_sum += i_tmp_lost;
1430
1431         if( !b_has_more || b_buffering_first )
1432             break;
1433
1434         vlc_mutex_lock( &p_owner->lock );
1435         if( !p_owner->buffer.p_picture )
1436         {
1437             vlc_mutex_unlock( &p_owner->lock );
1438             break;
1439         }
1440     }
1441 }
1442
1443 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1444 {
1445     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1446     input_thread_t *p_input = p_owner->p_input;
1447     picture_t      *p_pic;
1448     int i_lost = 0;
1449     int i_decoded = 0;
1450     int i_displayed = 0;
1451
1452     while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1453     {
1454         vout_thread_t  *p_vout = p_owner->p_vout;
1455         if( p_dec->b_die )
1456         {
1457             /* It prevent freezing VLC in case of broken decoder */
1458             vout_DropPicture( p_vout, p_pic );
1459             if( p_block )
1460                 block_Release( p_block );
1461             break;
1462         }
1463
1464         i_decoded++;
1465
1466         if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1467         {
1468             vout_DropPicture( p_vout, p_pic );
1469             continue;
1470         }
1471
1472         if( p_owner->i_preroll_end > VLC_TS_INVALID )
1473         {
1474             msg_Dbg( p_dec, "End of video preroll" );
1475             if( p_vout )
1476                 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1477             /* */
1478             p_owner->i_preroll_end = VLC_TS_INVALID;
1479         }
1480
1481         if( p_dec->pf_get_cc &&
1482             ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1483             DecoderGetCc( p_dec, p_dec );
1484
1485         DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1486     }
1487     if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1488     {
1489         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1490
1491         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1492                              i_decoded, NULL );
1493         stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1494                              i_lost , NULL);
1495
1496         stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1497                              i_displayed, NULL);
1498
1499         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1500     }
1501 }
1502
1503 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1504                             bool b_telx )
1505 {
1506     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1507     vout_thread_t *p_vout = p_owner->p_spu_vout;
1508
1509     /* */
1510     if( p_subpic->i_start <= VLC_TS_INVALID )
1511     {
1512         msg_Warn( p_dec, "non-dated spu buffer received" );
1513         subpicture_Delete( p_subpic );
1514         return;
1515     }
1516
1517     /* */
1518     vlc_mutex_lock( &p_owner->lock );
1519
1520     if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1521     {
1522         p_subpic->p_next = NULL;
1523
1524         *p_owner->buffer.pp_subpic_next = p_subpic;
1525         p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1526
1527         p_owner->buffer.i_count++;
1528         /* XXX it is important to be full after the first one */
1529         if( p_owner->buffer.i_count > 0 )
1530         {
1531             p_owner->buffer.b_full = true;
1532             vlc_cond_signal( &p_owner->wait_acknowledge );
1533         }
1534     }
1535
1536     for( ;; )
1537     {
1538         bool b_has_more = false;
1539         bool b_reject;
1540         DecoderWaitUnblock( p_dec, &b_reject );
1541
1542         if( p_owner->b_buffering )
1543         {
1544             vlc_mutex_unlock( &p_owner->lock );
1545             return;
1546         }
1547
1548         /* */
1549         if( p_owner->buffer.p_subpic )
1550         {
1551             p_subpic = p_owner->buffer.p_subpic;
1552
1553             p_owner->buffer.p_subpic = p_subpic->p_next;
1554             p_owner->buffer.i_count--;
1555
1556             b_has_more = p_owner->buffer.p_subpic != NULL;
1557             if( !b_has_more )
1558                 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1559         }
1560
1561         /* */
1562         DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1563                       NULL, INT64_MAX, b_telx );
1564
1565         vlc_mutex_unlock( &p_owner->lock );
1566
1567         if( p_subpic->i_start <= VLC_TS_INVALID )
1568             b_reject = true;
1569
1570         DecoderWaitDate( p_dec, &b_reject,
1571                          p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1572
1573         if( !b_reject )
1574             spu_DisplaySubpicture( vout_GetSpu( p_vout ), p_subpic );
1575         else
1576             subpicture_Delete( p_subpic );
1577
1578         if( !b_has_more )
1579             break;
1580         vlc_mutex_lock( &p_owner->lock );
1581         if( !p_owner->buffer.p_subpic )
1582         {
1583             vlc_mutex_unlock( &p_owner->lock );
1584             break;
1585         }
1586     }
1587 }
1588
1589 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1590                              bool b_telx )
1591 {
1592     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1593
1594     assert( p_owner->p_clock );
1595     assert( !p_sout_block->p_next );
1596
1597     vlc_mutex_lock( &p_owner->lock );
1598
1599     if( p_owner->b_buffering || p_owner->buffer.p_block )
1600     {
1601         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1602
1603         p_owner->buffer.i_count++;
1604         /* XXX it is important to be full after the first one */
1605         if( p_owner->buffer.i_count > 0 )
1606         {
1607             p_owner->buffer.b_full = true;
1608             vlc_cond_signal( &p_owner->wait_acknowledge );
1609         }
1610     }
1611
1612     for( ;; )
1613     {
1614         bool b_has_more = false;
1615         bool b_reject;
1616         DecoderWaitUnblock( p_dec, &b_reject );
1617
1618         if( p_owner->b_buffering )
1619         {
1620             vlc_mutex_unlock( &p_owner->lock );
1621             return;
1622         }
1623
1624         /* */
1625         if( p_owner->buffer.p_block )
1626         {
1627             p_sout_block = p_owner->buffer.p_block;
1628
1629             p_owner->buffer.p_block = p_sout_block->p_next;
1630             p_owner->buffer.i_count--;
1631
1632             b_has_more = p_owner->buffer.p_block != NULL;
1633             if( !b_has_more )
1634                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1635         }
1636         p_sout_block->p_next = NULL;
1637
1638         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1639                       &p_sout_block->i_length,
1640                       &p_sout_block->i_rate, INT64_MAX, b_telx );
1641
1642         vlc_mutex_unlock( &p_owner->lock );
1643
1644         if( !b_reject )
1645             sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1646         else
1647             block_Release( p_sout_block );
1648
1649         if( !b_has_more )
1650             break;
1651         vlc_mutex_lock( &p_owner->lock );
1652         if( !p_owner->buffer.p_block )
1653         {
1654             vlc_mutex_unlock( &p_owner->lock );
1655             break;
1656         }
1657     }
1658 }
1659
1660 /* */
1661 static void DecoderFlushBuffering( decoder_t *p_dec )
1662 {
1663     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1664
1665     vlc_assert_locked( &p_owner->lock );
1666
1667     while( p_owner->buffer.p_picture )
1668     {
1669         picture_t *p_picture = p_owner->buffer.p_picture;
1670
1671         p_owner->buffer.p_picture = p_picture->p_next;
1672         p_owner->buffer.i_count--;
1673
1674         if( p_owner->p_vout )
1675             vout_DropPicture( p_owner->p_vout, p_picture );
1676
1677         if( !p_owner->buffer.p_picture )
1678             p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1679     }
1680     while( p_owner->buffer.p_audio )
1681     {
1682         aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1683
1684         p_owner->buffer.p_audio = p_audio->p_next;
1685         p_owner->buffer.i_count--;
1686
1687         aout_BufferFree( p_audio );
1688
1689         if( !p_owner->buffer.p_audio )
1690             p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1691     }
1692     while( p_owner->buffer.p_subpic )
1693     {
1694         subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1695
1696         p_owner->buffer.p_subpic = p_subpic->p_next;
1697         p_owner->buffer.i_count--;
1698
1699         subpicture_Delete( p_subpic );
1700
1701         if( !p_owner->buffer.p_subpic )
1702             p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1703     }
1704     if( p_owner->buffer.p_block )
1705     {
1706         block_ChainRelease( p_owner->buffer.p_block );
1707
1708         p_owner->buffer.i_count = 0;
1709         p_owner->buffer.p_block = NULL;
1710         p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1711     }
1712 }
1713
1714 /* This function process a block for sout
1715  */
1716 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1717 {
1718     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1719     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1720     block_t *p_sout_block;
1721
1722     while( ( p_sout_block =
1723                  p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1724     {
1725         if( !p_owner->p_sout_input )
1726         {
1727             es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1728
1729             p_owner->sout.i_group = p_dec->fmt_in.i_group;
1730             p_owner->sout.i_id = p_dec->fmt_in.i_id;
1731             if( p_dec->fmt_in.psz_language )
1732             {
1733                 if( p_owner->sout.psz_language )
1734                     free( p_owner->sout.psz_language );
1735                 p_owner->sout.psz_language =
1736                     strdup( p_dec->fmt_in.psz_language );
1737             }
1738
1739             p_owner->p_sout_input =
1740                 sout_InputNew( p_owner->p_sout,
1741                                &p_owner->sout );
1742
1743             if( p_owner->p_sout_input == NULL )
1744             {
1745                 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1746                          (char *)&p_owner->sout.i_codec );
1747                 p_dec->b_error = true;
1748
1749                 while( p_sout_block )
1750                 {
1751                     block_t *p_next = p_sout_block->p_next;
1752                     block_Release( p_sout_block );
1753                     p_sout_block = p_next;
1754                 }
1755                 break;
1756             }
1757         }
1758
1759         while( p_sout_block )
1760         {
1761             block_t *p_next = p_sout_block->p_next;
1762
1763             p_sout_block->p_next = NULL;
1764
1765             DecoderPlaySout( p_dec, p_sout_block, b_telx );
1766
1767             p_sout_block = p_next;
1768         }
1769     }
1770 }
1771
1772 /* This function process a video block
1773  */
1774 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1775 {
1776     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1777
1778     if( p_owner->p_packetizer )
1779     {
1780         block_t *p_packetized_block;
1781         decoder_t *p_packetizer = p_owner->p_packetizer;
1782
1783         while( (p_packetized_block =
1784                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1785         {
1786             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1787             {
1788                 es_format_Clean( &p_dec->fmt_in );
1789                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1790             }
1791             if( p_packetizer->pf_get_cc )
1792                 DecoderGetCc( p_dec, p_packetizer );
1793
1794             while( p_packetized_block )
1795             {
1796                 block_t *p_next = p_packetized_block->p_next;
1797                 p_packetized_block->p_next = NULL;
1798
1799                 DecoderDecodeVideo( p_dec, p_packetized_block );
1800
1801                 p_packetized_block = p_next;
1802             }
1803         }
1804         /* The packetizer does not output a block that tell the decoder to flush
1805          * do it ourself */
1806         if( b_flush )
1807         {
1808             block_t *p_null = DecoderBlockFlushNew();
1809             if( p_null )
1810                 DecoderDecodeVideo( p_dec, p_null );
1811         }
1812     }
1813     else if( p_block )
1814     {
1815         DecoderDecodeVideo( p_dec, p_block );
1816     }
1817
1818     if( b_flush && p_owner->p_vout )
1819         vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1820 }
1821
1822 /* This function process a audio block
1823  */
1824 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1825 {
1826     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1827
1828     if( p_owner->p_packetizer )
1829     {
1830         block_t *p_packetized_block;
1831         decoder_t *p_packetizer = p_owner->p_packetizer;
1832
1833         while( (p_packetized_block =
1834                 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1835         {
1836             if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1837             {
1838                 es_format_Clean( &p_dec->fmt_in );
1839                 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1840             }
1841
1842             while( p_packetized_block )
1843             {
1844                 block_t *p_next = p_packetized_block->p_next;
1845                 p_packetized_block->p_next = NULL;
1846
1847                 DecoderDecodeAudio( p_dec, p_packetized_block );
1848
1849                 p_packetized_block = p_next;
1850             }
1851         }
1852         /* The packetizer does not output a block that tell the decoder to flush
1853          * do it ourself */
1854         if( b_flush )
1855         {
1856             block_t *p_null = DecoderBlockFlushNew();
1857             if( p_null )
1858                 DecoderDecodeAudio( p_dec, p_null );
1859         }
1860     }
1861     else if( p_block )
1862     {
1863         DecoderDecodeAudio( p_dec, p_block );
1864     }
1865
1866     if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1867         aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1868 }
1869
1870 /* This function process a subtitle block
1871  */
1872 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1873 {
1874     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1875     const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1876
1877     input_thread_t *p_input = p_owner->p_input;
1878     vout_thread_t *p_vout;
1879     subpicture_t *p_spu;
1880
1881     while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1882     {
1883         vlc_mutex_lock( &p_input->p->counters.counters_lock );
1884         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1885         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1886
1887         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1888         if( p_vout && p_owner->p_spu_vout == p_vout )
1889         {
1890             /* Preroll does not work very well with subtitle */
1891             if( p_spu->i_start > VLC_TS_INVALID &&
1892                 p_spu->i_start < p_owner->i_preroll_end &&
1893                 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1894             {
1895                 subpicture_Delete( p_spu );
1896             }
1897             else
1898             {
1899                 DecoderPlaySpu( p_dec, p_spu, b_telx );
1900             }
1901         }
1902         else
1903         {
1904             subpicture_Delete( p_spu );
1905         }
1906         if( p_vout )
1907             vlc_object_release( p_vout );
1908     }
1909
1910     if( b_flush && p_owner->p_spu_vout )
1911     {
1912         p_vout = input_resource_HoldVout( p_input->p->p_resource );
1913
1914         if( p_vout && p_owner->p_spu_vout == p_vout )
1915             spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR,
1916                          p_owner->i_spu_channel );
1917
1918         if( p_vout )
1919             vlc_object_release( p_vout );
1920     }
1921 }
1922
1923 /* */
1924 static void DecoderProcessOnFlush( decoder_t *p_dec )
1925 {
1926     decoder_owner_sys_t *p_owner = p_dec->p_owner;
1927
1928     vlc_mutex_lock( &p_owner->lock );
1929     DecoderFlushBuffering( p_dec );
1930
1931     if( p_owner->b_flushing )
1932     {
1933         p_owner->b_flushing = false;
1934         vlc_cond_signal( &p_owner->wait_acknowledge );
1935     }
1936     vlc_mutex_unlock( &p_owner->lock );
1937 }
1938
1939 /**
1940  * Decode a block
1941  *
1942  * \param p_dec the decoder object
1943  * \param p_block the block to decode
1944  * \return VLC_SUCCESS or an error code
1945  */
1946 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1947 {
1948     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1949     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1950
1951     if( p_block && p_block->i_buffer <= 0 )
1952     {
1953         assert( !b_flush_request );
1954         block_Release( p_block );
1955         return;
1956     }
1957
1958 #ifdef ENABLE_SOUT
1959     if( p_owner->b_packetizer )
1960     {
1961         if( p_block )
1962             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1963
1964         DecoderProcessSout( p_dec, p_block );
1965     }
1966     else
1967 #endif
1968     {
1969         bool b_flush = false;
1970
1971         if( p_block )
1972         {
1973             const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1974             DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1975
1976             b_flush = !b_flushing && b_flush_request;
1977
1978             p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1979         }
1980
1981         if( p_dec->fmt_out.i_cat == AUDIO_ES )
1982         {
1983             DecoderProcessAudio( p_dec, p_block, b_flush );
1984         }
1985         else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1986         {
1987             DecoderProcessVideo( p_dec, p_block, b_flush );
1988         }
1989         else if( p_dec->fmt_out.i_cat == SPU_ES )
1990         {
1991             DecoderProcessSpu( p_dec, p_block, b_flush );
1992         }
1993         else
1994         {
1995             msg_Err( p_dec, "unknown ES format" );
1996             p_dec->b_error = true;
1997         }
1998     }
1999
2000     /* */
2001     if( b_flush_request )
2002         DecoderProcessOnFlush( p_dec );
2003 }
2004
2005 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2006 {
2007     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2008
2009     /* */
2010     if( p_block )
2011         block_Release( p_block );
2012
2013     if( b_flush_request )
2014         DecoderProcessOnFlush( p_dec );
2015 }
2016
2017
2018 /**
2019  * Destroys a decoder object
2020  *
2021  * \param p_dec the decoder object
2022  * \return nothing
2023  */
2024 static void DeleteDecoder( decoder_t * p_dec )
2025 {
2026     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2027
2028     msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2029              (char*)&p_dec->fmt_in.i_codec,
2030              (unsigned)block_FifoCount( p_owner->p_fifo ) );
2031
2032     /* Free all packets still in the decoder fifo. */
2033     block_FifoEmpty( p_owner->p_fifo );
2034     block_FifoRelease( p_owner->p_fifo );
2035
2036     /* */
2037     vlc_mutex_lock( &p_owner->lock );
2038     DecoderFlushBuffering( p_dec );
2039     vlc_mutex_unlock( &p_owner->lock );
2040
2041     /* Cleanup */
2042     if( p_owner->p_aout_input )
2043         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2044     if( p_owner->p_aout )
2045     {
2046         input_resource_RequestAout( p_owner->p_input->p->p_resource,
2047                                      p_owner->p_aout );
2048         input_SendEventAout( p_owner->p_input );
2049         p_owner->p_aout = NULL;
2050     }
2051     if( p_owner->p_vout )
2052     {
2053         /* Hack to make sure all the the pictures are freed by the decoder
2054          * and that the vout is not paused anymore */
2055         vout_FixLeaks( p_owner->p_vout, true );
2056         if( p_owner->b_paused )
2057             vout_ChangePause( p_owner->p_vout, false, mdate() );
2058
2059         /* */
2060         input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, true );
2061         input_SendEventVout( p_owner->p_input );
2062     }
2063
2064 #ifdef ENABLE_SOUT
2065     if( p_owner->p_sout_input )
2066     {
2067         sout_InputDelete( p_owner->p_sout_input );
2068         es_format_Clean( &p_owner->sout );
2069     }
2070 #endif
2071
2072     if( p_dec->fmt_out.i_cat == SPU_ES )
2073     {
2074         vout_thread_t *p_vout;
2075
2076         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2077         if( p_vout )
2078         {
2079             if( p_owner->p_spu_vout == p_vout )
2080                 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2081             vlc_object_release( p_vout );
2082         }
2083     }
2084
2085     es_format_Clean( &p_dec->fmt_in );
2086     es_format_Clean( &p_dec->fmt_out );
2087     if( p_dec->p_description )
2088         vlc_meta_Delete( p_dec->p_description );
2089     es_format_Clean( &p_owner->fmt_description );
2090     if( p_owner->p_description )
2091         vlc_meta_Delete( p_owner->p_description );
2092
2093     if( p_owner->p_packetizer )
2094     {
2095         module_unneed( p_owner->p_packetizer,
2096                        p_owner->p_packetizer->p_module );
2097         es_format_Clean( &p_owner->p_packetizer->fmt_in );
2098         es_format_Clean( &p_owner->p_packetizer->fmt_out );
2099         if( p_owner->p_packetizer->p_description )
2100             vlc_meta_Delete( p_owner->p_packetizer->p_description );
2101         vlc_object_detach( p_owner->p_packetizer );
2102         vlc_object_release( p_owner->p_packetizer );
2103     }
2104
2105     vlc_cond_destroy( &p_owner->wait_acknowledge );
2106     vlc_cond_destroy( &p_owner->wait_request );
2107     vlc_mutex_destroy( &p_owner->lock );
2108
2109     vlc_object_detach( p_dec );
2110
2111     free( p_owner );
2112 }
2113
2114 /*****************************************************************************
2115  * Buffers allocation callbacks for the decoders
2116  *****************************************************************************/
2117 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2118 {
2119     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2120
2121     vlc_assert_locked( &p_owner->lock );
2122
2123     p_owner->b_fmt_description = true;
2124
2125     /* Copy es_format */
2126     es_format_Clean( &p_owner->fmt_description );
2127     es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2128
2129     /* Move p_description */
2130     if( p_owner->p_description && p_dec->p_description )
2131         vlc_meta_Delete( p_owner->p_description );
2132     p_owner->p_description = p_dec->p_description;
2133     p_dec->p_description = NULL;
2134 }
2135 static vout_thread_t *aout_request_vout( void *p_private,
2136                                          vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2137 {
2138     decoder_t *p_dec = p_private;
2139     input_thread_t *p_input = p_dec->p_owner->p_input;
2140
2141     p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, b_recyle );
2142     input_SendEventVout( p_input );
2143
2144     return p_vout;
2145 }
2146
2147 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2148 {
2149     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2150     aout_buffer_t *p_buffer;
2151
2152     if( p_owner->p_aout_input != NULL &&
2153         ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2154           p_dec->fmt_out.audio.i_original_channels !=
2155               p_owner->audio.i_original_channels ||
2156           p_dec->fmt_out.audio.i_bytes_per_frame !=
2157               p_owner->audio.i_bytes_per_frame ) )
2158     {
2159         aout_input_t *p_aout_input = p_owner->p_aout_input;
2160
2161         /* Parameters changed, restart the aout */
2162         vlc_mutex_lock( &p_owner->lock );
2163
2164         DecoderFlushBuffering( p_dec );
2165
2166         p_owner->p_aout_input = NULL;
2167         aout_DecDelete( p_owner->p_aout, p_aout_input );
2168
2169         vlc_mutex_unlock( &p_owner->lock );
2170     }
2171
2172     if( p_owner->p_aout_input == NULL )
2173     {
2174         const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2175         audio_sample_format_t format;
2176         aout_input_t *p_aout_input;
2177         aout_instance_t *p_aout;
2178         aout_request_vout_t request_vout;
2179
2180         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2181         p_owner->audio = p_dec->fmt_out.audio;
2182
2183         memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2184         if( i_force_dolby &&
2185             (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2186                 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2187         {
2188             if( i_force_dolby == 1 )
2189             {
2190                 format.i_original_channels = format.i_original_channels |
2191                                              AOUT_CHAN_DOLBYSTEREO;
2192             }
2193             else /* i_force_dolby == 2 */
2194             {
2195                 format.i_original_channels = format.i_original_channels &
2196                                              ~AOUT_CHAN_DOLBYSTEREO;
2197             }
2198         }
2199
2200         request_vout.pf_request_vout = aout_request_vout;
2201         request_vout.p_private = p_dec;
2202
2203         p_aout = p_owner->p_aout;
2204         if( !p_aout )
2205             p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2206         p_aout_input = aout_DecNew( p_dec, &p_aout,
2207                                     &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2208
2209         vlc_mutex_lock( &p_owner->lock );
2210
2211         p_owner->p_aout = p_aout;
2212         p_owner->p_aout_input = p_aout_input;
2213         DecoderUpdateFormatLocked( p_dec );
2214
2215         vlc_mutex_unlock( &p_owner->lock );
2216
2217         input_SendEventAout( p_owner->p_input );
2218
2219         if( p_owner->p_aout_input == NULL )
2220         {
2221             msg_Err( p_dec, "failed to create audio output" );
2222             p_dec->b_error = true;
2223             return NULL;
2224         }
2225         p_dec->fmt_out.audio.i_bytes_per_frame =
2226             p_owner->audio.i_bytes_per_frame;
2227     }
2228
2229     p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2230
2231     return p_buffer;
2232 }
2233
2234 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2235 {
2236     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2237
2238     aout_DecDeleteBuffer( p_owner->p_aout,
2239                           p_owner->p_aout_input, p_buffer );
2240 }
2241
2242
2243 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2244
2245 static picture_t *vout_new_buffer( decoder_t *p_dec )
2246 {
2247     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2248
2249     if( p_owner->p_vout == NULL ||
2250         p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2251         p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2252         p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2253         p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2254     {
2255         vout_thread_t *p_vout;
2256
2257         if( !p_dec->fmt_out.video.i_width ||
2258             !p_dec->fmt_out.video.i_height )
2259         {
2260             /* Can't create a new vout without display size */
2261             return NULL;
2262         }
2263
2264         if( !p_dec->fmt_out.video.i_visible_width ||
2265             !p_dec->fmt_out.video.i_visible_height )
2266         {
2267             if( p_dec->fmt_in.video.i_visible_width &&
2268                 p_dec->fmt_in.video.i_visible_height )
2269             {
2270                 p_dec->fmt_out.video.i_visible_width =
2271                     p_dec->fmt_in.video.i_visible_width;
2272                 p_dec->fmt_out.video.i_visible_height =
2273                     p_dec->fmt_in.video.i_visible_height;
2274             }
2275             else
2276             {
2277                 p_dec->fmt_out.video.i_visible_width =
2278                     p_dec->fmt_out.video.i_width;
2279                 p_dec->fmt_out.video.i_visible_height =
2280                     p_dec->fmt_out.video.i_height;
2281             }
2282         }
2283
2284         if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2285             var_CreateGetBool( p_dec, "hdtv-fix" ) )
2286         {
2287             p_dec->fmt_out.video.i_visible_height = 1080;
2288             if( !(p_dec->fmt_out.video.i_sar_num % 136))
2289             {
2290                 p_dec->fmt_out.video.i_sar_num *= 135;
2291                 p_dec->fmt_out.video.i_sar_den *= 136;
2292             }
2293             msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2294         }
2295
2296         if( !p_dec->fmt_out.video.i_sar_num ||
2297             !p_dec->fmt_out.video.i_sar_den )
2298         {
2299             p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2300               p_dec->fmt_out.video.i_visible_height;
2301
2302             p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2303               p_dec->fmt_out.video.i_visible_width;
2304         }
2305
2306         vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2307                      &p_dec->fmt_out.video.i_sar_den,
2308                      p_dec->fmt_out.video.i_sar_num,
2309                      p_dec->fmt_out.video.i_sar_den, 50000 );
2310
2311         p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2312         p_owner->video = p_dec->fmt_out.video;
2313
2314         vlc_mutex_lock( &p_owner->lock );
2315
2316         DecoderFlushBuffering( p_dec );
2317
2318         p_vout = p_owner->p_vout;
2319         p_owner->p_vout = NULL;
2320         vlc_mutex_unlock( &p_owner->lock );
2321
2322         p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2323                                               p_vout, &p_dec->fmt_out.video, true );
2324
2325         vlc_mutex_lock( &p_owner->lock );
2326         p_owner->p_vout = p_vout;
2327
2328         DecoderUpdateFormatLocked( p_dec );
2329
2330         vlc_mutex_unlock( &p_owner->lock );
2331
2332         input_SendEventVout( p_owner->p_input );
2333         if( p_vout == NULL )
2334         {
2335             msg_Err( p_dec, "failed to create video output" );
2336             p_dec->b_error = true;
2337             return NULL;
2338         }
2339
2340         if( p_owner->video.i_rmask )
2341             p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2342         if( p_owner->video.i_gmask )
2343             p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2344         if( p_owner->video.i_bmask )
2345             p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2346     }
2347
2348     /* Get a new picture
2349      */
2350     for( ;; )
2351     {
2352         picture_t *p_picture;
2353
2354         if( p_dec->b_die || p_dec->b_error )
2355             return NULL;
2356
2357         /* The video filter chain required that there is always 1 free buffer
2358          * that it will use as temporary one. It will release the temporary
2359          * buffer once its work is done, so this check is safe even if we don't
2360          * lock around both count() and create().
2361          */
2362         if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2363         {
2364             p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2365             if( p_picture )
2366                 return p_picture;
2367         }
2368
2369         if( DecoderIsFlushing( p_dec ) )
2370             return NULL;
2371
2372         /* */
2373         DecoderSignalBuffering( p_dec, true );
2374
2375         /* Check the decoder doesn't leak pictures */
2376         vout_FixLeaks( p_owner->p_vout, false );
2377
2378         /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2379         msleep( VOUT_OUTMEM_SLEEP );
2380     }
2381 }
2382
2383 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2384 {
2385     vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2386 }
2387
2388 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2389 {
2390     vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2391 }
2392
2393 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2394 {
2395     vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2396 }
2397
2398 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2399 {
2400     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2401     vout_thread_t *p_vout = NULL;
2402     subpicture_t *p_subpic;
2403     int i_attempts = 30;
2404
2405     while( i_attempts-- )
2406     {
2407         if( p_dec->b_die || p_dec->b_error )
2408             break;
2409
2410         p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2411         if( p_vout )
2412             break;
2413
2414         msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2415     }
2416
2417     if( !p_vout )
2418     {
2419         msg_Warn( p_dec, "no vout found, dropping subpicture" );
2420         return NULL;
2421     }
2422
2423     if( p_owner->p_spu_vout != p_vout )
2424     {
2425         vlc_mutex_lock( &p_owner->lock );
2426
2427         DecoderFlushBuffering( p_dec );
2428
2429         vlc_mutex_unlock( &p_owner->lock );
2430
2431         spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_REGISTER,
2432                      &p_owner->i_spu_channel );
2433         p_owner->i_spu_order = 0;
2434         p_owner->p_spu_vout = p_vout;
2435     }
2436
2437     p_subpic = subpicture_New();
2438     if( p_subpic )
2439     {
2440         p_subpic->i_channel = p_owner->i_spu_channel;
2441         p_subpic->i_order = p_owner->i_spu_order++;
2442         p_subpic->b_subtitle = true;
2443     }
2444
2445     vlc_object_release( p_vout );
2446
2447     return p_subpic;
2448 }
2449
2450 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2451 {
2452     decoder_owner_sys_t *p_owner = p_dec->p_owner;
2453     vout_thread_t *p_vout = NULL;
2454
2455     p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2456     if( !p_vout || p_owner->p_spu_vout != p_vout )
2457     {
2458         if( p_vout )
2459             vlc_object_release( p_vout );
2460         msg_Warn( p_dec, "no vout found, leaking subpicture" );
2461         return;
2462     }
2463
2464     subpicture_Delete( p_subpic );
2465
2466     vlc_object_release( p_vout );
2467 }
2468