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Add encoder support for Dirac using the Schroedinger library.
[vlc/asuraparaju-public.git] / src / input / decoder.c
blobf7ec650a5875ccb3acbb4864f4ad14e27280ab2c
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_spu.h>
42 #include <vlc_meta.h>
43 #include <vlc_dialog.h>
44 #include <vlc_modules.h>
45
46 #include "audio_output/aout_internal.h"
47 #include "stream_output/stream_output.h"
48 #include "input_internal.h"
49 #include "clock.h"
50 #include "decoder.h"
51 #include "event.h"
52 #include "resource.h"
53
54 #include "../video_output/vout_control.h"
55
56 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, bool,
57 sout_instance_t *p_sout );
58 static void DeleteDecoder( decoder_t * );
59
60 static void *DecoderThread( vlc_object_t * );
61 static void DecoderProcess( decoder_t *, block_t * );
62 static void DecoderError( decoder_t *p_dec, block_t *p_block );
63 static void DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
64 static void DecoderFlush( decoder_t * );
65 static void DecoderSignalBuffering( decoder_t *, bool );
66 static void DecoderFlushBuffering( decoder_t * );
67
68 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
69
70 /* Buffers allocation callbacks for the decoders */
71 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
72 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
73
74 static picture_t *vout_new_buffer( decoder_t * );
75 static void vout_del_buffer( decoder_t *, picture_t * );
76 static void vout_link_picture( decoder_t *, picture_t * );
77 static void vout_unlink_picture( decoder_t *, picture_t * );
78
79 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
80 static void spu_del_buffer( decoder_t *, subpicture_t * );
81
82 struct decoder_owner_sys_t
83 {
84 int64_t i_preroll_end;
85
86 input_thread_t *p_input;
87 input_clock_t *p_clock;
88 int i_last_rate;
89
90 vout_thread_t *p_spu_vout;
91 int i_spu_channel;
92 int64_t i_spu_order;
93
94 sout_instance_t *p_sout;
95 sout_packetizer_input_t *p_sout_input;
96
97 /* Some decoders require already packetized data (ie. not truncated) */
98 decoder_t *p_packetizer;
99 bool b_packetizer;
100
101 /* Current format in use by the output */
102 video_format_t video;
103 audio_format_t audio;
104 es_format_t sout;
105
106 /* */
107 bool b_fmt_description;
108 es_format_t fmt_description;
109 vlc_meta_t *p_description;
110
111 /* fifo */
112 block_fifo_t *p_fifo;
113
114 /* Lock for communication with decoder thread */
115 vlc_mutex_t lock;
116 vlc_cond_t wait_request;
117 vlc_cond_t wait_acknowledge;
118
119 /* -- These variables need locking on write(only) -- */
120 aout_instance_t *p_aout;
121 aout_input_t *p_aout_input;
122
123 vout_thread_t *p_vout;
124
125 /* -- Theses variables need locking on read *and* write -- */
126 /* */
127 /* Pause */
128 bool b_paused;
129 struct
130 {
131 mtime_t i_date;
132 int i_ignore;
133 } pause;
134
135 /* Buffering */
136 bool b_buffering;
137 struct
138 {
139 bool b_first;
140 bool b_full;
141 int i_count;
142
143 picture_t *p_picture;
144 picture_t **pp_picture_next;
145
146 subpicture_t *p_subpic;
147 subpicture_t **pp_subpic_next;
148
149 aout_buffer_t *p_audio;
150 aout_buffer_t **pp_audio_next;
151
152 block_t *p_block;
153 block_t **pp_block_next;
154 } buffer;
155
156 /* Flushing */
157 bool b_flushing;
158
159 /* CC */
160 struct
161 {
162 bool b_supported;
163 bool pb_present[4];
164 decoder_t *pp_decoder[4];
165 } cc;
166
167 /* Delay */
168 mtime_t i_ts_delay;
169 };
170
171 #define DECODER_MAX_BUFFERING_COUNT (4)
172 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
173 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
174
175 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
176 * a bogus PTS and won't be displayed */
177 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
178
179 /* */
180 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
181
182
183 /*****************************************************************************
184 * Public functions
185 *****************************************************************************/
186 picture_t *decoder_NewPicture( decoder_t *p_decoder )
187 {
188 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
189 if( !p_picture )
190 msg_Warn( p_decoder, "can't get output picture" );
191 return p_picture;
192 }
193 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
194 {
195 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
196 }
197 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
198 {
199 p_decoder->pf_picture_link( p_decoder, p_picture );
200 }
201 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
202 {
203 p_decoder->pf_picture_unlink( p_decoder, p_picture );
204 }
205
206 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
207 {
208 if( !p_decoder->pf_aout_buffer_new )
209 return NULL;
210 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
211 }
212 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
213 {
214 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
215 }
216
217 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
218 const subpicture_updater_t *p_dyn )
219 {
220 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
221 if( !p_subpicture )
222 msg_Warn( p_decoder, "can't get output subpicture" );
223 return p_subpicture;
224 }
225
226 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
227 {
228 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
229 }
230
231 /* decoder_GetInputAttachments:
232 */
233 int decoder_GetInputAttachments( decoder_t *p_dec,
234 input_attachment_t ***ppp_attachment,
235 int *pi_attachment )
236 {
237 if( !p_dec->pf_get_attachments )
238 return VLC_EGENERIC;
239
240 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
241 }
242 /* decoder_GetDisplayDate:
243 */
244 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
245 {
246 if( !p_dec->pf_get_display_date )
247 return VLC_TS_INVALID;
248
249 return p_dec->pf_get_display_date( p_dec, i_ts );
250 }
251 /* decoder_GetDisplayRate:
252 */
253 int decoder_GetDisplayRate( decoder_t *p_dec )
254 {
255 if( !p_dec->pf_get_display_rate )
256 return INPUT_RATE_DEFAULT;
257
258 return p_dec->pf_get_display_rate( p_dec );
259 }
260
261 /**
262 * Spawns a new decoder thread
263 *
264 * \param p_input the input thread
265 * \param p_es the es descriptor
266 * \return the spawned decoder object
267 */
268 decoder_t *input_DecoderNew( input_thread_t *p_input,
269 es_format_t *fmt, input_clock_t *p_clock,
270 sout_instance_t *p_sout )
271 {
272 decoder_t *p_dec = NULL;
273 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
274 int i_priority;
275
276 /* Create the decoder configuration structure */
277 p_dec = CreateDecoder( p_input, fmt, p_sout != NULL, p_sout );
278 if( p_dec == NULL )
279 {
280 msg_Err( p_input, "could not create %s", psz_type );
281 dialog_Fatal( p_input, _("Streaming / Transcoding failed"),
282 _("VLC could not open the %s module."),
283 vlc_gettext( psz_type ) );
284 return NULL;
285 }
286
287 if( !p_dec->p_module )
288 {
289 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
290
291 DeleteDecoder( p_dec );
292 return NULL;
293 }
294
295 p_dec->p_owner->p_clock = p_clock;
296 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
297
298 if( p_dec->fmt_out.i_cat == AUDIO_ES )
299 i_priority = VLC_THREAD_PRIORITY_AUDIO;
300 else
301 i_priority = VLC_THREAD_PRIORITY_VIDEO;
302
303 /* Spawn the decoder thread */
304 if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
305 {
306 msg_Err( p_dec, "cannot spawn decoder thread" );
307 module_unneed( p_dec, p_dec->p_module );
308 DeleteDecoder( p_dec );
309 return NULL;
310 }
311
312 return p_dec;
313 }
314
315 /**
316 * Kills a decoder thread and waits until it's finished
317 *
318 * \param p_input the input thread
319 * \param p_es the es descriptor
320 * \return nothing
321 */
322 void input_DecoderDelete( decoder_t *p_dec )
323 {
324 decoder_owner_sys_t *p_owner = p_dec->p_owner;
325
326 vlc_object_kill( p_dec );
327
328 /* Make sure we aren't paused/buffering/waiting anymore */
329 vlc_mutex_lock( &p_owner->lock );
330 const bool b_was_paused = p_owner->b_paused;
331 p_owner->b_paused = false;
332 p_owner->b_buffering = false;
333 p_owner->b_flushing = true;
334 vlc_cond_signal( &p_owner->wait_request );
335 vlc_mutex_unlock( &p_owner->lock );
336
337 vlc_thread_join( p_dec );
338 p_owner->b_paused = b_was_paused;
339
340 module_unneed( p_dec, p_dec->p_module );
341
342 /* */
343 if( p_dec->p_owner->cc.b_supported )
344 {
345 int i;
346 for( i = 0; i < 4; i++ )
347 input_DecoderSetCcState( p_dec, false, i );
348 }
349
350 /* Delete decoder */
351 DeleteDecoder( p_dec );
352 }
353
354 /**
355 * Put a block_t in the decoder's fifo.
356 * Thread-safe w.r.t. the decoder. May be a cancellation point.
357 *
358 * \param p_dec the decoder object
359 * \param p_block the data block
360 */
361 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
362 {
363 decoder_owner_sys_t *p_owner = p_dec->p_owner;
364
365 if( b_do_pace )
366 {
367 /* The fifo is not consummed when buffering and so will
368 * deadlock vlc.
369 * There is no need to lock as b_buffering is never modify
370 * inside decoder thread. */
371 if( !p_owner->b_buffering )
372 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
373 }
374 #ifdef __arm__
375 else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
376 #else
377 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
378 #endif
379 {
380 /* FIXME: ideally we would check the time amount of data
381 * in the FIFO instead of its size. */
382 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
383 "consumed quickly enough), resetting fifo!" );
384 block_FifoEmpty( p_owner->p_fifo );
385 }
386
387 block_FifoPut( p_owner->p_fifo, p_block );
388 }
389
390 bool input_DecoderIsEmpty( decoder_t * p_dec )
391 {
392 decoder_owner_sys_t *p_owner = p_dec->p_owner;
393 assert( !p_owner->b_buffering );
394
395 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
396 if( b_empty )
397 {
398 vlc_mutex_lock( &p_owner->lock );
399 /* TODO audio support */
400 if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
401 b_empty = vout_IsEmpty( p_owner->p_vout );
402 vlc_mutex_unlock( &p_owner->lock );
403 }
404 return b_empty;
405 }
406
407 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
408 {
409 decoder_owner_sys_t *p_owner = p_dec->p_owner;
410 int i;
411
412 vlc_mutex_lock( &p_owner->lock );
413 for( i = 0; i < 4; i++ )
414 pb_present[i] = p_owner->cc.pb_present[i];
415 vlc_mutex_unlock( &p_owner->lock );
416 }
417 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
418 {
419 decoder_owner_sys_t *p_owner = p_dec->p_owner;
420
421 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
422
423 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
424 return VLC_EGENERIC;
425
426 if( b_decode )
427 {
428 static const vlc_fourcc_t fcc[4] = {
429 VLC_FOURCC('c', 'c', '1', ' '),
430 VLC_FOURCC('c', 'c', '2', ' '),
431 VLC_FOURCC('c', 'c', '3', ' '),
432 VLC_FOURCC('c', 'c', '4', ' '),
433 };
434 decoder_t *p_cc;
435 es_format_t fmt;
436
437 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
438 p_cc = CreateDecoder( p_owner->p_input, &fmt, false, p_owner->p_sout );
439 if( !p_cc )
440 {
441 msg_Err( p_dec, "could not create decoder" );
442 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
443 _("VLC could not open the decoder module.") );
444 return VLC_EGENERIC;
445 }
446 else if( !p_cc->p_module )
447 {
448 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
449 DeleteDecoder( p_cc );
450 return VLC_EGENERIC;
451 }
452 p_cc->p_owner->p_clock = p_owner->p_clock;
453
454 vlc_mutex_lock( &p_owner->lock );
455 p_owner->cc.pp_decoder[i_channel] = p_cc;
456 vlc_mutex_unlock( &p_owner->lock );
457 }
458 else
459 {
460 decoder_t *p_cc;
461
462 vlc_mutex_lock( &p_owner->lock );
463 p_cc = p_owner->cc.pp_decoder[i_channel];
464 p_owner->cc.pp_decoder[i_channel] = NULL;
465 vlc_mutex_unlock( &p_owner->lock );
466
467 if( p_cc )
468 {
469 vlc_object_kill( p_cc );
470 module_unneed( p_cc, p_cc->p_module );
471 DeleteDecoder( p_cc );
472 }
473 }
474 return VLC_SUCCESS;
475 }
476 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
477 {
478 decoder_owner_sys_t *p_owner = p_dec->p_owner;
479
480 *pb_decode = false;
481 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
482 return VLC_EGENERIC;
483
484 vlc_mutex_lock( &p_owner->lock );
485 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
486 vlc_mutex_unlock( &p_owner->lock );
487 return VLC_EGENERIC;
488 }
489
490 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
491 {
492 decoder_owner_sys_t *p_owner = p_dec->p_owner;
493
494 vlc_mutex_lock( &p_owner->lock );
495
496 assert( !p_owner->b_paused || !b_paused );
497
498 p_owner->b_paused = b_paused;
499 p_owner->pause.i_date = i_date;
500 p_owner->pause.i_ignore = 0;
501 vlc_cond_signal( &p_owner->wait_request );
502
503 DecoderOutputChangePause( p_dec, b_paused, i_date );
504
505 vlc_mutex_unlock( &p_owner->lock );
506 }
507
508 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
509 {
510 decoder_owner_sys_t *p_owner = p_dec->p_owner;
511
512 vlc_mutex_lock( &p_owner->lock );
513 p_owner->i_ts_delay = i_delay;
514 vlc_mutex_unlock( &p_owner->lock );
515 }
516
517 void input_DecoderStartBuffering( decoder_t *p_dec )
518 {
519 decoder_owner_sys_t *p_owner = p_dec->p_owner;
520
521 vlc_mutex_lock( &p_owner->lock );
522
523 DecoderFlush( p_dec );
524
525 p_owner->buffer.b_first = true;
526 p_owner->buffer.b_full = false;
527 p_owner->buffer.i_count = 0;
528
529 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
530 !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
531
532 p_owner->buffer.p_picture = NULL;
533 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
534
535 p_owner->buffer.p_subpic = NULL;
536 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
537
538 p_owner->buffer.p_audio = NULL;
539 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
540
541 p_owner->buffer.p_block = NULL;
542 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
543
544
545 p_owner->b_buffering = true;
546
547 vlc_cond_signal( &p_owner->wait_request );
548
549 vlc_mutex_unlock( &p_owner->lock );
550 }
551
552 void input_DecoderStopBuffering( decoder_t *p_dec )
553 {
554 decoder_owner_sys_t *p_owner = p_dec->p_owner;
555
556 vlc_mutex_lock( &p_owner->lock );
557
558 p_owner->b_buffering = false;
559
560 vlc_cond_signal( &p_owner->wait_request );
561
562 vlc_mutex_unlock( &p_owner->lock );
563 }
564
565 void input_DecoderWaitBuffering( decoder_t *p_dec )
566 {
567 decoder_owner_sys_t *p_owner = p_dec->p_owner;
568
569 vlc_mutex_lock( &p_owner->lock );
570
571 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
572 {
573 block_FifoWake( p_owner->p_fifo );
574 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
575 }
576
577 vlc_mutex_unlock( &p_owner->lock );
578 }
579
580 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
581 {
582 decoder_owner_sys_t *p_owner = p_dec->p_owner;
583
584 *pi_duration = 0;
585
586 vlc_mutex_lock( &p_owner->lock );
587 if( p_dec->fmt_out.i_cat == VIDEO_ES )
588 {
589 if( p_owner->b_paused && p_owner->p_vout )
590 {
591 vout_NextPicture( p_owner->p_vout, pi_duration );
592 p_owner->pause.i_ignore++;
593 vlc_cond_signal( &p_owner->wait_request );
594 }
595 }
596 else
597 {
598 /* TODO subtitle should not be flushed */
599 DecoderFlush( p_dec );
600 }
601 vlc_mutex_unlock( &p_owner->lock );
602 }
603
604 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
605 {
606 decoder_owner_sys_t *p_owner = p_dec->p_owner;
607 bool b_changed;
608
609 vlc_mutex_lock( &p_owner->lock );
610 b_changed = p_owner->b_fmt_description;
611 if( b_changed )
612 {
613 if( p_fmt )
614 es_format_Copy( p_fmt, &p_owner->fmt_description );
615
616 if( pp_meta )
617 {
618 *pp_meta = NULL;
619 if( p_owner->p_description )
620 {
621 *pp_meta = vlc_meta_New();
622 if( *pp_meta )
623 vlc_meta_Merge( *pp_meta, p_owner->p_description );
624 }
625 }
626 p_owner->b_fmt_description = false;
627 }
628 vlc_mutex_unlock( &p_owner->lock );
629 return b_changed;
630 }
631
632 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
633 {
634 decoder_owner_sys_t *p_owner = p_dec->p_owner;
635
636 return block_FifoSize( p_owner->p_fifo );
637 }
638
639 void input_DecoderGetObjects( decoder_t *p_dec,
640 vout_thread_t **pp_vout, aout_instance_t **pp_aout )
641 {
642 decoder_owner_sys_t *p_owner = p_dec->p_owner;
643
644 vlc_mutex_lock( &p_owner->lock );
645 if( pp_vout )
646 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
647 if( pp_aout )
648 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
649 vlc_mutex_unlock( &p_owner->lock );
650 }
651
652 /*****************************************************************************
653 * Internal functions
654 *****************************************************************************/
655 static int DecoderGetInputAttachments( decoder_t *p_dec,
656 input_attachment_t ***ppp_attachment,
657 int *pi_attachment )
658 {
659 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
660 ppp_attachment, pi_attachment );
661 }
662 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
663 {
664 decoder_owner_sys_t *p_owner = p_dec->p_owner;
665
666 vlc_mutex_lock( &p_owner->lock );
667 if( p_owner->b_buffering || p_owner->b_paused )
668 i_ts = VLC_TS_INVALID;
669 vlc_mutex_unlock( &p_owner->lock );
670
671 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
672 return i_ts;
673
674 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
675 return VLC_TS_INVALID;
676
677 return i_ts;
678 }
679 static int DecoderGetDisplayRate( decoder_t *p_dec )
680 {
681 decoder_owner_sys_t *p_owner = p_dec->p_owner;
682
683 if( !p_owner->p_clock )
684 return INPUT_RATE_DEFAULT;
685 return input_clock_GetRate( p_owner->p_clock );
686 }
687
688 /* */
689 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
690 {
691 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
692 "VLC probably does not support this sound or video format.",
693 (char*)&codec );
694 dialog_Fatal( p_dec, _("No suitable decoder module"),
695 _("VLC does not support the audio or video format \"%4.4s\". "
696 "Unfortunately there is no way for you to fix this."),
697 (char*)&codec );
698 }
699
700
701 /**
702 * Create a decoder object
703 *
704 * \param p_input the input thread
705 * \param p_es the es descriptor
706 * \param b_packetizer instead of a decoder
707 * \return the decoder object
708 */
709 static decoder_t * CreateDecoder( input_thread_t *p_input,
710 es_format_t *fmt, bool b_packetizer,
711 sout_instance_t *p_sout )
712 {
713 decoder_t *p_dec;
714 decoder_owner_sys_t *p_owner;
715 es_format_t null_es_format;
716
717 p_dec = vlc_custom_create( p_input, sizeof( *p_dec ), VLC_OBJECT_DECODER,
718 "decoder" );
719 if( p_dec == NULL )
720 return NULL;
721
722 p_dec->pf_decode_audio = NULL;
723 p_dec->pf_decode_video = NULL;
724 p_dec->pf_decode_sub = NULL;
725 p_dec->pf_get_cc = NULL;
726 p_dec->pf_packetize = NULL;
727
728 /* Initialize the decoder */
729 p_dec->p_module = NULL;
730
731 memset( &null_es_format, 0, sizeof(es_format_t) );
732 es_format_Copy( &p_dec->fmt_in, fmt );
733 es_format_Copy( &p_dec->fmt_out, &null_es_format );
734
735 p_dec->p_description = NULL;
736
737 /* Allocate our private structure for the decoder */
738 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
739 if( p_dec->p_owner == NULL )
740 {
741 vlc_object_release( p_dec );
742 return NULL;
743 }
744 p_dec->p_owner->i_preroll_end = VLC_TS_INVALID;
745 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
746 p_dec->p_owner->p_input = p_input;
747 p_dec->p_owner->p_aout = NULL;
748 p_dec->p_owner->p_aout_input = NULL;
749 p_dec->p_owner->p_vout = NULL;
750 p_dec->p_owner->p_spu_vout = NULL;
751 p_dec->p_owner->i_spu_channel = 0;
752 p_dec->p_owner->i_spu_order = 0;
753 p_dec->p_owner->p_sout = p_sout;
754 p_dec->p_owner->p_sout_input = NULL;
755 p_dec->p_owner->p_packetizer = NULL;
756 p_dec->p_owner->b_packetizer = b_packetizer;
757
758 /* decoder fifo */
759 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
760 {
761 free( p_dec->p_owner );
762 vlc_object_release( p_dec );
763 return NULL;
764 }
765
766 /* Set buffers allocation callbacks for the decoders */
767 p_dec->pf_aout_buffer_new = aout_new_buffer;
768 p_dec->pf_aout_buffer_del = aout_del_buffer;
769 p_dec->pf_vout_buffer_new = vout_new_buffer;
770 p_dec->pf_vout_buffer_del = vout_del_buffer;
771 p_dec->pf_picture_link = vout_link_picture;
772 p_dec->pf_picture_unlink = vout_unlink_picture;
773 p_dec->pf_spu_buffer_new = spu_new_buffer;
774 p_dec->pf_spu_buffer_del = spu_del_buffer;
775 /* */
776 p_dec->pf_get_attachments = DecoderGetInputAttachments;
777 p_dec->pf_get_display_date = DecoderGetDisplayDate;
778 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
779
780 vlc_object_attach( p_dec, p_input );
781
782 /* Find a suitable decoder/packetizer module */
783 if( !b_packetizer )
784 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
785 else
786 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
787
788 /* Check if decoder requires already packetized data */
789 if( !b_packetizer &&
790 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
791 {
792 p_dec->p_owner->p_packetizer =
793 vlc_custom_create( p_input, sizeof( decoder_t ),
794 VLC_OBJECT_DECODER, "packetizer" );
795 if( p_dec->p_owner->p_packetizer )
796 {
797 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
798 &p_dec->fmt_in );
799
800 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
801 &null_es_format );
802
803 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
804
805 p_dec->p_owner->p_packetizer->p_module =
806 module_need( p_dec->p_owner->p_packetizer,
807 "packetizer", "$packetizer", false );
808
809 if( !p_dec->p_owner->p_packetizer->p_module )
810 {
811 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
812 vlc_object_release( p_dec->p_owner->p_packetizer );
813 }
814 }
815 }
816
817 /* Copy ourself the input replay gain */
818 if( fmt->i_cat == AUDIO_ES )
819 {
820 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
821 {
822 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
823 {
824 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
825 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
826 }
827 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
828 {
829 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
830 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
831 }
832 }
833 }
834
835 /* */
836 vlc_mutex_init( &p_owner->lock );
837 vlc_cond_init( &p_owner->wait_request );
838 vlc_cond_init( &p_owner->wait_acknowledge );
839
840 p_owner->b_fmt_description = false;
841 es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
842 p_owner->p_description = NULL;
843
844 p_owner->b_paused = false;
845 p_owner->pause.i_date = VLC_TS_INVALID;
846 p_owner->pause.i_ignore = 0;
847
848 p_owner->b_buffering = false;
849 p_owner->buffer.b_first = true;
850 p_owner->buffer.b_full = false;
851 p_owner->buffer.i_count = 0;
852 p_owner->buffer.p_picture = NULL;
853 p_owner->buffer.p_subpic = NULL;
854 p_owner->buffer.p_audio = NULL;
855 p_owner->buffer.p_block = NULL;
856
857 p_owner->b_flushing = false;
858
859 /* */
860 p_owner->cc.b_supported = false;
861 if( !b_packetizer )
862 {
863 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
864 p_owner->cc.b_supported = true;
865 if( p_dec->pf_get_cc )
866 p_owner->cc.b_supported = true;
867 }
868
869 for( unsigned i = 0; i < 4; i++ )
870 {
871 p_owner->cc.pb_present[i] = false;
872 p_owner->cc.pp_decoder[i] = NULL;
873 }
874 p_owner->i_ts_delay = 0;
875 return p_dec;
876 }
877
878 /**
879 * The decoding main loop
880 *
881 * \param p_dec the decoder
882 */
883 static void *DecoderThread( vlc_object_t *p_this )
884 {
885 decoder_t *p_dec = (decoder_t *)p_this;
886 decoder_owner_sys_t *p_owner = p_dec->p_owner;
887
888 /* The decoder's main loop */
889 for( ;; )
890 {
891 block_t *p_block = block_FifoGet( p_owner->p_fifo );
892
893 /* Make sure there is no cancellation point other than this one^^.
894 * If you need one, be sure to push cleanup of p_block. */
895 DecoderSignalBuffering( p_dec, p_block == NULL );
896
897 if( p_block )
898 {
899 int canc = vlc_savecancel();
900
901 if( p_dec->b_error )
902 DecoderError( p_dec, p_block );
903 else
904 DecoderProcess( p_dec, p_block );
905
906 vlc_restorecancel( canc );
907 }
908 }
909 return NULL;
910 }
911
912 static block_t *DecoderBlockFlushNew()
913 {
914 block_t *p_null = block_Alloc( 128 );
915 if( !p_null )
916 return NULL;
917
918 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
919 BLOCK_FLAG_CORRUPTED |
920 BLOCK_FLAG_CORE_FLUSH;
921 memset( p_null->p_buffer, 0, p_null->i_buffer );
922
923 return p_null;
924 }
925
926 static void DecoderFlush( decoder_t *p_dec )
927 {
928 decoder_owner_sys_t *p_owner = p_dec->p_owner;
929
930 vlc_assert_locked( &p_owner->lock );
931
932 /* Empty the fifo */
933 block_FifoEmpty( p_owner->p_fifo );
934
935 /* Monitor for flush end */
936 p_owner->b_flushing = true;
937 vlc_cond_signal( &p_owner->wait_request );
938
939 /* Send a special block */
940 block_t *p_null = DecoderBlockFlushNew();
941 if( !p_null )
942 return;
943 input_DecoderDecode( p_dec, p_null, false );
944
945 /* */
946 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
947 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
948 }
949
950 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
951 {
952 decoder_owner_sys_t *p_owner = p_dec->p_owner;
953
954 vlc_mutex_lock( &p_owner->lock );
955
956 if( p_owner->b_buffering )
957 {
958 if( b_full )
959 p_owner->buffer.b_full = true;
960 vlc_cond_signal( &p_owner->wait_acknowledge );
961 }
962
963 vlc_mutex_unlock( &p_owner->lock );
964 }
965
966 static bool DecoderIsFlushing( decoder_t *p_dec )
967 {
968 decoder_owner_sys_t *p_owner = p_dec->p_owner;
969 bool b_flushing;
970
971 vlc_mutex_lock( &p_owner->lock );
972
973 b_flushing = p_owner->b_flushing;
974
975 vlc_mutex_unlock( &p_owner->lock );
976
977 return b_flushing;
978 }
979
980 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
981 {
982 decoder_owner_sys_t *p_owner = p_dec->p_owner;
983
984 vlc_assert_locked( &p_owner->lock );
985
986 while( !p_owner->b_flushing )
987 {
988 if( p_owner->b_paused )
989 {
990 if( p_owner->b_buffering && !p_owner->buffer.b_full )
991 break;
992 if( p_owner->pause.i_ignore > 0 )
993 {
994 p_owner->pause.i_ignore--;
995 break;
996 }
997 }
998 else
999 {
1000 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
1001 break;
1002 }
1003 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1004 }
1005
1006 if( pb_reject )
1007 *pb_reject = p_owner->b_flushing;
1008 }
1009
1010 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1011 {
1012 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1013
1014 vlc_assert_locked( &p_owner->lock );
1015
1016 /* XXX only audio and video output have to be paused.
1017 * - for sout it is useless
1018 * - for subs, it is done by the vout
1019 */
1020 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1021 {
1022 if( p_owner->p_aout && p_owner->p_aout_input )
1023 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1024 b_paused, i_date );
1025 }
1026 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1027 {
1028 if( p_owner->p_vout )
1029 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1030 }
1031 }
1032 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1033 {
1034 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1035 *pi_preroll = INT64_MAX;
1036 else if( p->i_dts > VLC_TS_INVALID )
1037 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1038 else if( p->i_pts > VLC_TS_INVALID )
1039 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1040 }
1041
1042 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1043 {
1044 mtime_t current_date = mdate();
1045
1046 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1047 if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1048 {
1049 /* ETSI EN 300 472 Annex A : do not take into account the PTS
1050 * for teletext streams. */
1051 return current_date + 400000;
1052 }
1053 return i_ts;
1054 }
1055
1056 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1057 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1058 {
1059 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1060 input_clock_t *p_clock = p_owner->p_clock;
1061
1062 vlc_assert_locked( &p_owner->lock );
1063
1064 const mtime_t i_es_delay = p_owner->i_ts_delay;
1065
1066 if( p_clock )
1067 {
1068 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1069 int i_rate;
1070
1071 if( *pi_ts0 > VLC_TS_INVALID )
1072 {
1073 *pi_ts0 += i_es_delay;
1074 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1075 *pi_ts1 += i_es_delay;
1076 if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1077 *pi_ts0 = VLC_TS_INVALID;
1078 }
1079 else
1080 {
1081 i_rate = input_clock_GetRate( p_clock );
1082 }
1083
1084 /* Do not create ephemere data because of rounding errors */
1085 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1086 *pi_ts1 += 1;
1087
1088 if( pi_duration )
1089 *pi_duration = ( *pi_duration * i_rate +
1090 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1091
1092 if( pi_rate )
1093 *pi_rate = i_rate;
1094
1095 if( b_telx )
1096 {
1097 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1098 if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1099 *pi_ts1 = *pi_ts0;
1100 }
1101 }
1102 }
1103
1104 /**
1105 * If *pb_reject, it does nothing, otherwise it waits for the given
1106 * deadline or a flush request (in which case it set *pi_reject to true.
1107 */
1108 static void DecoderWaitDate( decoder_t *p_dec,
1109 bool *pb_reject, mtime_t i_deadline )
1110 {
1111 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1112
1113 if( *pb_reject || i_deadline < 0 )
1114 return;
1115
1116 for( ;; )
1117 {
1118 vlc_mutex_lock( &p_owner->lock );
1119 if( p_owner->b_flushing || p_dec->b_die )
1120 {
1121 *pb_reject = true;
1122 vlc_mutex_unlock( &p_owner->lock );
1123 break;
1124 }
1125 int i_ret = vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1126 i_deadline );
1127 vlc_mutex_unlock( &p_owner->lock );
1128 if( i_ret )
1129 break;
1130 }
1131 }
1132
1133 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1134 int *pi_played_sum, int *pi_lost_sum )
1135 {
1136 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1137 aout_instance_t *p_aout = p_owner->p_aout;
1138 aout_input_t *p_aout_input = p_owner->p_aout_input;
1139
1140 /* */
1141 if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1142 {
1143 msg_Warn( p_dec, "non-dated audio buffer received" );
1144 *pi_lost_sum += 1;
1145 aout_BufferFree( p_audio );
1146 return;
1147 }
1148
1149 /* */
1150 vlc_mutex_lock( &p_owner->lock );
1151
1152 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1153 {
1154 p_audio->p_next = NULL;
1155
1156 *p_owner->buffer.pp_audio_next = p_audio;
1157 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1158
1159 p_owner->buffer.i_count++;
1160 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1161 p_audio->i_pts - p_owner->buffer.p_audio->i_pts > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1162 {
1163 p_owner->buffer.b_full = true;
1164 vlc_cond_signal( &p_owner->wait_acknowledge );
1165 }
1166 }
1167
1168 for( ;; )
1169 {
1170 bool b_has_more = false;
1171 bool b_reject;
1172 DecoderWaitUnblock( p_dec, &b_reject );
1173
1174 if( p_owner->b_buffering )
1175 {
1176 vlc_mutex_unlock( &p_owner->lock );
1177 return;
1178 }
1179
1180 /* */
1181 if( p_owner->buffer.p_audio )
1182 {
1183 p_audio = p_owner->buffer.p_audio;
1184
1185 p_owner->buffer.p_audio = p_audio->p_next;
1186 p_owner->buffer.i_count--;
1187
1188 b_has_more = p_owner->buffer.p_audio != NULL;
1189 if( !b_has_more )
1190 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1191 }
1192
1193 /* */
1194 const bool b_dated = p_audio->i_pts > VLC_TS_INVALID;
1195 int i_rate = INPUT_RATE_DEFAULT;
1196
1197 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1198 &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1199
1200 vlc_mutex_unlock( &p_owner->lock );
1201
1202 if( !p_aout || !p_aout_input ||
1203 p_audio->i_pts <= VLC_TS_INVALID ||
1204 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1205 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1206 b_reject = true;
1207
1208 DecoderWaitDate( p_dec, &b_reject,
1209 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1210
1211 if( !b_reject )
1212 {
1213 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1214 *pi_played_sum += 1;
1215 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1216 }
1217 else
1218 {
1219 if( b_dated )
1220 msg_Warn( p_aout, "received buffer in the future" );
1221 else
1222 msg_Warn( p_dec, "non-dated audio buffer received" );
1223
1224 *pi_lost_sum += 1;
1225 aout_BufferFree( p_audio );
1226 }
1227
1228 if( !b_has_more )
1229 break;
1230
1231 vlc_mutex_lock( &p_owner->lock );
1232 if( !p_owner->buffer.p_audio )
1233 {
1234 vlc_mutex_unlock( &p_owner->lock );
1235 break;
1236 }
1237 }
1238 }
1239
1240 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1241 {
1242 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1243 input_thread_t *p_input = p_owner->p_input;
1244 aout_buffer_t *p_aout_buf;
1245 int i_decoded = 0;
1246 int i_lost = 0;
1247 int i_played = 0;
1248
1249 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1250 {
1251 aout_instance_t *p_aout = p_owner->p_aout;
1252 aout_input_t *p_aout_input = p_owner->p_aout_input;
1253
1254 if( p_dec->b_die )
1255 {
1256 /* It prevent freezing VLC in case of broken decoder */
1257 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1258 if( p_block )
1259 block_Release( p_block );
1260 break;
1261 }
1262 i_decoded++;
1263
1264 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1265 p_aout_buf->i_pts < p_owner->i_preroll_end )
1266 {
1267 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1268 continue;
1269 }
1270
1271 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1272 {
1273 msg_Dbg( p_dec, "End of audio preroll" );
1274 if( p_owner->p_aout && p_owner->p_aout_input )
1275 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1276 /* */
1277 p_owner->i_preroll_end = VLC_TS_INVALID;
1278 }
1279
1280 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1281 }
1282
1283 /* Update ugly stat */
1284 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1285 {
1286 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1287
1288 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1289 i_lost, NULL );
1290 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1291 i_played, NULL );
1292 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1293 i_decoded, NULL );
1294
1295 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1296 }
1297 }
1298 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1299 {
1300 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1301 block_t *p_cc;
1302 bool pb_present[4];
1303 bool b_processed = false;
1304 int i;
1305 int i_cc_decoder;
1306
1307 assert( p_dec_cc->pf_get_cc != NULL );
1308
1309 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1310 if( !p_owner->cc.b_supported )
1311 return;
1312
1313 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1314 if( !p_cc )
1315 return;
1316
1317 vlc_mutex_lock( &p_owner->lock );
1318 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1319 {
1320 p_owner->cc.pb_present[i] |= pb_present[i];
1321 if( p_owner->cc.pp_decoder[i] )
1322 i_cc_decoder++;
1323 }
1324
1325 for( i = 0; i < 4; i++ )
1326 {
1327 if( !p_owner->cc.pp_decoder[i] )
1328 continue;
1329
1330 if( i_cc_decoder > 1 )
1331 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1332 else
1333 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1334 i_cc_decoder--;
1335 b_processed = true;
1336 }
1337 vlc_mutex_unlock( &p_owner->lock );
1338
1339 if( !b_processed )
1340 block_Release( p_cc );
1341 }
1342
1343 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1344 int *pi_played_sum, int *pi_lost_sum )
1345 {
1346 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1347 vout_thread_t *p_vout = p_owner->p_vout;
1348 bool b_first_buffered;
1349
1350 if( p_picture->date <= VLC_TS_INVALID )
1351 {
1352 msg_Warn( p_vout, "non-dated video buffer received" );
1353 *pi_lost_sum += 1;
1354 vout_ReleasePicture( p_vout, p_picture );
1355 return;
1356 }
1357
1358 /* */
1359 vlc_mutex_lock( &p_owner->lock );
1360
1361 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1362 {
1363 p_picture->p_next = NULL;
1364
1365 *p_owner->buffer.pp_picture_next = p_picture;
1366 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1367
1368 p_owner->buffer.i_count++;
1369 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1370 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1371 {
1372 p_owner->buffer.b_full = true;
1373 vlc_cond_signal( &p_owner->wait_acknowledge );
1374 }
1375 }
1376 b_first_buffered = p_owner->buffer.p_picture != NULL;
1377
1378 for( ;; b_first_buffered = false )
1379 {
1380 bool b_has_more = false;
1381
1382 bool b_reject;
1383
1384 DecoderWaitUnblock( p_dec, &b_reject );
1385
1386 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1387 {
1388 vlc_mutex_unlock( &p_owner->lock );
1389 return;
1390 }
1391 bool b_buffering_first = p_owner->b_buffering;
1392
1393 /* */
1394 if( p_owner->buffer.p_picture )
1395 {
1396 p_picture = p_owner->buffer.p_picture;
1397
1398 p_owner->buffer.p_picture = p_picture->p_next;
1399 p_owner->buffer.i_count--;
1400
1401 b_has_more = p_owner->buffer.p_picture != NULL;
1402 if( !b_has_more )
1403 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1404 }
1405
1406 /* */
1407 if( b_buffering_first )
1408 {
1409 assert( p_owner->buffer.b_first );
1410 assert( !p_owner->buffer.i_count );
1411 msg_Dbg( p_dec, "Received first picture" );
1412 p_owner->buffer.b_first = false;
1413 p_picture->b_force = true;
1414 }
1415
1416 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1417 int i_rate = INPUT_RATE_DEFAULT;
1418 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1419 &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1420
1421 vlc_mutex_unlock( &p_owner->lock );
1422
1423 /* */
1424 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1425 b_reject = true;
1426
1427 if( !b_reject )
1428 {
1429 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1430 {
1431 /* Be sure to not display old picture after our own */
1432 vout_Flush( p_vout, p_picture->date );
1433 p_owner->i_last_rate = i_rate;
1434 }
1435 vout_PutPicture( p_vout, p_picture );
1436 }
1437 else
1438 {
1439 if( b_dated )
1440 msg_Warn( p_vout, "early picture skipped" );
1441 else
1442 msg_Warn( p_vout, "non-dated video buffer received" );
1443
1444 *pi_lost_sum += 1;
1445 vout_ReleasePicture( p_vout, p_picture );
1446 }
1447 int i_tmp_display;
1448 int i_tmp_lost;
1449 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1450
1451 *pi_played_sum += i_tmp_display;
1452 *pi_lost_sum += i_tmp_lost;
1453
1454 if( !b_has_more || b_buffering_first )
1455 break;
1456
1457 vlc_mutex_lock( &p_owner->lock );
1458 if( !p_owner->buffer.p_picture )
1459 {
1460 vlc_mutex_unlock( &p_owner->lock );
1461 break;
1462 }
1463 }
1464 }
1465
1466 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1467 {
1468 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1469 input_thread_t *p_input = p_owner->p_input;
1470 picture_t *p_pic;
1471 int i_lost = 0;
1472 int i_decoded = 0;
1473 int i_displayed = 0;
1474
1475 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1476 {
1477 vout_thread_t *p_vout = p_owner->p_vout;
1478 if( p_dec->b_die )
1479 {
1480 /* It prevent freezing VLC in case of broken decoder */
1481 vout_ReleasePicture( p_vout, p_pic );
1482 if( p_block )
1483 block_Release( p_block );
1484 break;
1485 }
1486
1487 i_decoded++;
1488
1489 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1490 {
1491 vout_ReleasePicture( p_vout, p_pic );
1492 continue;
1493 }
1494
1495 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1496 {
1497 msg_Dbg( p_dec, "End of video preroll" );
1498 if( p_vout )
1499 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1500 /* */
1501 p_owner->i_preroll_end = VLC_TS_INVALID;
1502 }
1503
1504 if( p_dec->pf_get_cc &&
1505 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1506 DecoderGetCc( p_dec, p_dec );
1507
1508 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1509 }
1510 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1511 {
1512 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1513
1514 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1515 i_decoded, NULL );
1516 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1517 i_lost , NULL);
1518
1519 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1520 i_displayed, NULL);
1521
1522 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1523 }
1524 }
1525
1526 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1527 bool b_telx )
1528 {
1529 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1530 vout_thread_t *p_vout = p_owner->p_spu_vout;
1531
1532 /* */
1533 if( p_subpic->i_start <= VLC_TS_INVALID && !b_telx )
1534 {
1535 msg_Warn( p_dec, "non-dated spu buffer received" );
1536 subpicture_Delete( p_subpic );
1537 return;
1538 }
1539
1540 /* */
1541 vlc_mutex_lock( &p_owner->lock );
1542
1543 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1544 {
1545 p_subpic->p_next = NULL;
1546
1547 *p_owner->buffer.pp_subpic_next = p_subpic;
1548 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1549
1550 p_owner->buffer.i_count++;
1551 /* XXX it is important to be full after the first one */
1552 if( p_owner->buffer.i_count > 0 )
1553 {
1554 p_owner->buffer.b_full = true;
1555 vlc_cond_signal( &p_owner->wait_acknowledge );
1556 }
1557 }
1558
1559 for( ;; )
1560 {
1561 bool b_has_more = false;
1562 bool b_reject;
1563 DecoderWaitUnblock( p_dec, &b_reject );
1564
1565 if( p_owner->b_buffering )
1566 {
1567 vlc_mutex_unlock( &p_owner->lock );
1568 return;
1569 }
1570
1571 /* */
1572 if( p_owner->buffer.p_subpic )
1573 {
1574 p_subpic = p_owner->buffer.p_subpic;
1575
1576 p_owner->buffer.p_subpic = p_subpic->p_next;
1577 p_owner->buffer.i_count--;
1578
1579 b_has_more = p_owner->buffer.p_subpic != NULL;
1580 if( !b_has_more )
1581 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1582 }
1583
1584 /* */
1585 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1586 NULL, INT64_MAX, b_telx );
1587
1588 vlc_mutex_unlock( &p_owner->lock );
1589
1590 if( p_subpic->i_start <= VLC_TS_INVALID )
1591 b_reject = true;
1592
1593 DecoderWaitDate( p_dec, &b_reject,
1594 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1595
1596 if( !b_reject )
1597 vout_PutSubpicture( p_vout, p_subpic );
1598 else
1599 subpicture_Delete( p_subpic );
1600
1601 if( !b_has_more )
1602 break;
1603 vlc_mutex_lock( &p_owner->lock );
1604 if( !p_owner->buffer.p_subpic )
1605 {
1606 vlc_mutex_unlock( &p_owner->lock );
1607 break;
1608 }
1609 }
1610 }
1611
1612 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1613 bool b_telx )
1614 {
1615 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1616
1617 assert( p_owner->p_clock );
1618 assert( !p_sout_block->p_next );
1619
1620 vlc_mutex_lock( &p_owner->lock );
1621
1622 if( p_owner->b_buffering || p_owner->buffer.p_block )
1623 {
1624 block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1625
1626 p_owner->buffer.i_count++;
1627 /* XXX it is important to be full after the first one */
1628 if( p_owner->buffer.i_count > 0 )
1629 {
1630 p_owner->buffer.b_full = true;
1631 vlc_cond_signal( &p_owner->wait_acknowledge );
1632 }
1633 }
1634
1635 for( ;; )
1636 {
1637 bool b_has_more = false;
1638 bool b_reject;
1639 DecoderWaitUnblock( p_dec, &b_reject );
1640
1641 if( p_owner->b_buffering )
1642 {
1643 vlc_mutex_unlock( &p_owner->lock );
1644 return;
1645 }
1646
1647 /* */
1648 if( p_owner->buffer.p_block )
1649 {
1650 p_sout_block = p_owner->buffer.p_block;
1651
1652 p_owner->buffer.p_block = p_sout_block->p_next;
1653 p_owner->buffer.i_count--;
1654
1655 b_has_more = p_owner->buffer.p_block != NULL;
1656 if( !b_has_more )
1657 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1658 }
1659 p_sout_block->p_next = NULL;
1660
1661 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1662 &p_sout_block->i_length,
1663 &p_sout_block->i_rate, INT64_MAX, b_telx );
1664
1665 vlc_mutex_unlock( &p_owner->lock );
1666
1667 if( !b_reject )
1668 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1669 else
1670 block_Release( p_sout_block );
1671
1672 if( !b_has_more )
1673 break;
1674 vlc_mutex_lock( &p_owner->lock );
1675 if( !p_owner->buffer.p_block )
1676 {
1677 vlc_mutex_unlock( &p_owner->lock );
1678 break;
1679 }
1680 }
1681 }
1682
1683 /* */
1684 static void DecoderFlushBuffering( decoder_t *p_dec )
1685 {
1686 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1687
1688 vlc_assert_locked( &p_owner->lock );
1689
1690 while( p_owner->buffer.p_picture )
1691 {
1692 picture_t *p_picture = p_owner->buffer.p_picture;
1693
1694 p_owner->buffer.p_picture = p_picture->p_next;
1695 p_owner->buffer.i_count--;
1696
1697 if( p_owner->p_vout )
1698 {
1699 vout_ReleasePicture( p_owner->p_vout, p_picture );
1700 }
1701
1702 if( !p_owner->buffer.p_picture )
1703 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1704 }
1705 while( p_owner->buffer.p_audio )
1706 {
1707 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1708
1709 p_owner->buffer.p_audio = p_audio->p_next;
1710 p_owner->buffer.i_count--;
1711
1712 aout_BufferFree( p_audio );
1713
1714 if( !p_owner->buffer.p_audio )
1715 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1716 }
1717 while( p_owner->buffer.p_subpic )
1718 {
1719 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1720
1721 p_owner->buffer.p_subpic = p_subpic->p_next;
1722 p_owner->buffer.i_count--;
1723
1724 subpicture_Delete( p_subpic );
1725
1726 if( !p_owner->buffer.p_subpic )
1727 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1728 }
1729 if( p_owner->buffer.p_block )
1730 {
1731 block_ChainRelease( p_owner->buffer.p_block );
1732
1733 p_owner->buffer.i_count = 0;
1734 p_owner->buffer.p_block = NULL;
1735 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1736 }
1737 }
1738
1739 /* This function process a block for sout
1740 */
1741 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1742 {
1743 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1744 const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1745 block_t *p_sout_block;
1746
1747 while( ( p_sout_block =
1748 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1749 {
1750 if( !p_owner->p_sout_input )
1751 {
1752 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1753
1754 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1755 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1756 if( p_dec->fmt_in.psz_language )
1757 {
1758 free( p_owner->sout.psz_language );
1759 p_owner->sout.psz_language =
1760 strdup( p_dec->fmt_in.psz_language );
1761 }
1762
1763 p_owner->p_sout_input =
1764 sout_InputNew( p_owner->p_sout,
1765 &p_owner->sout );
1766
1767 if( p_owner->p_sout_input == NULL )
1768 {
1769 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1770 (char *)&p_owner->sout.i_codec );
1771 p_dec->b_error = true;
1772
1773 while( p_sout_block )
1774 {
1775 block_t *p_next = p_sout_block->p_next;
1776 block_Release( p_sout_block );
1777 p_sout_block = p_next;
1778 }
1779 break;
1780 }
1781 }
1782
1783 while( p_sout_block )
1784 {
1785 block_t *p_next = p_sout_block->p_next;
1786
1787 p_sout_block->p_next = NULL;
1788
1789 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1790
1791 p_sout_block = p_next;
1792 }
1793 }
1794 }
1795
1796 /* This function process a video block
1797 */
1798 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1799 {
1800 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1801
1802 if( p_owner->p_packetizer )
1803 {
1804 block_t *p_packetized_block;
1805 decoder_t *p_packetizer = p_owner->p_packetizer;
1806
1807 while( (p_packetized_block =
1808 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1809 {
1810 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1811 {
1812 es_format_Clean( &p_dec->fmt_in );
1813 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1814 }
1815 if( p_packetizer->pf_get_cc )
1816 DecoderGetCc( p_dec, p_packetizer );
1817
1818 while( p_packetized_block )
1819 {
1820 block_t *p_next = p_packetized_block->p_next;
1821 p_packetized_block->p_next = NULL;
1822
1823 DecoderDecodeVideo( p_dec, p_packetized_block );
1824
1825 p_packetized_block = p_next;
1826 }
1827 }
1828 /* The packetizer does not output a block that tell the decoder to flush
1829 * do it ourself */
1830 if( b_flush )
1831 {
1832 block_t *p_null = DecoderBlockFlushNew();
1833 if( p_null )
1834 DecoderDecodeVideo( p_dec, p_null );
1835 }
1836 }
1837 else if( p_block )
1838 {
1839 DecoderDecodeVideo( p_dec, p_block );
1840 }
1841
1842 if( b_flush && p_owner->p_vout )
1843 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1844 }
1845
1846 /* This function process a audio block
1847 */
1848 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1849 {
1850 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1851
1852 if( p_owner->p_packetizer )
1853 {
1854 block_t *p_packetized_block;
1855 decoder_t *p_packetizer = p_owner->p_packetizer;
1856
1857 while( (p_packetized_block =
1858 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1859 {
1860 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1861 {
1862 es_format_Clean( &p_dec->fmt_in );
1863 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1864 }
1865
1866 while( p_packetized_block )
1867 {
1868 block_t *p_next = p_packetized_block->p_next;
1869 p_packetized_block->p_next = NULL;
1870
1871 DecoderDecodeAudio( p_dec, p_packetized_block );
1872
1873 p_packetized_block = p_next;
1874 }
1875 }
1876 /* The packetizer does not output a block that tell the decoder to flush
1877 * do it ourself */
1878 if( b_flush )
1879 {
1880 block_t *p_null = DecoderBlockFlushNew();
1881 if( p_null )
1882 DecoderDecodeAudio( p_dec, p_null );
1883 }
1884 }
1885 else if( p_block )
1886 {
1887 DecoderDecodeAudio( p_dec, p_block );
1888 }
1889
1890 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1891 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1892 }
1893
1894 /* This function process a subtitle block
1895 */
1896 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1897 {
1898 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1899 const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1900
1901 input_thread_t *p_input = p_owner->p_input;
1902 vout_thread_t *p_vout;
1903 subpicture_t *p_spu;
1904
1905 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1906 {
1907 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1908 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1909 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1910
1911 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1912 if( p_vout && p_owner->p_spu_vout == p_vout )
1913 {
1914 /* Preroll does not work very well with subtitle */
1915 if( p_spu->i_start > VLC_TS_INVALID &&
1916 p_spu->i_start < p_owner->i_preroll_end &&
1917 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1918 {
1919 subpicture_Delete( p_spu );
1920 }
1921 else
1922 {
1923 DecoderPlaySpu( p_dec, p_spu, b_telx );
1924 }
1925 }
1926 else
1927 {
1928 subpicture_Delete( p_spu );
1929 }
1930 if( p_vout )
1931 vlc_object_release( p_vout );
1932 }
1933
1934 if( b_flush && p_owner->p_spu_vout )
1935 {
1936 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1937
1938 if( p_vout && p_owner->p_spu_vout == p_vout )
1939 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1940
1941 if( p_vout )
1942 vlc_object_release( p_vout );
1943 }
1944 }
1945
1946 /* */
1947 static void DecoderProcessOnFlush( decoder_t *p_dec )
1948 {
1949 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1950
1951 vlc_mutex_lock( &p_owner->lock );
1952 DecoderFlushBuffering( p_dec );
1953
1954 if( p_owner->b_flushing )
1955 {
1956 p_owner->b_flushing = false;
1957 vlc_cond_signal( &p_owner->wait_acknowledge );
1958 }
1959 vlc_mutex_unlock( &p_owner->lock );
1960 }
1961
1962 /**
1963 * Decode a block
1964 *
1965 * \param p_dec the decoder object
1966 * \param p_block the block to decode
1967 * \return VLC_SUCCESS or an error code
1968 */
1969 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1970 {
1971 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1972 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1973
1974 if( p_block && p_block->i_buffer <= 0 )
1975 {
1976 assert( !b_flush_request );
1977 block_Release( p_block );
1978 return;
1979 }
1980
1981 #ifdef ENABLE_SOUT
1982 if( p_owner->b_packetizer )
1983 {
1984 if( p_block )
1985 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1986
1987 DecoderProcessSout( p_dec, p_block );
1988 }
1989 else
1990 #endif
1991 {
1992 bool b_flush = false;
1993
1994 if( p_block )
1995 {
1996 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1997 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1998
1999 b_flush = !b_flushing && b_flush_request;
2000
2001 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
2002 }
2003
2004 if( p_dec->fmt_out.i_cat == AUDIO_ES )
2005 {
2006 DecoderProcessAudio( p_dec, p_block, b_flush );
2007 }
2008 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
2009 {
2010 DecoderProcessVideo( p_dec, p_block, b_flush );
2011 }
2012 else if( p_dec->fmt_out.i_cat == SPU_ES )
2013 {
2014 DecoderProcessSpu( p_dec, p_block, b_flush );
2015 }
2016 else
2017 {
2018 msg_Err( p_dec, "unknown ES format" );
2019 p_dec->b_error = true;
2020 }
2021 }
2022
2023 /* */
2024 if( b_flush_request )
2025 DecoderProcessOnFlush( p_dec );
2026 }
2027
2028 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2029 {
2030 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2031
2032 /* */
2033 if( p_block )
2034 block_Release( p_block );
2035
2036 if( b_flush_request )
2037 DecoderProcessOnFlush( p_dec );
2038 }
2039
2040
2041 /**
2042 * Destroys a decoder object
2043 *
2044 * \param p_dec the decoder object
2045 * \return nothing
2046 */
2047 static void DeleteDecoder( decoder_t * p_dec )
2048 {
2049 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2050
2051 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2052 (char*)&p_dec->fmt_in.i_codec,
2053 (unsigned)block_FifoCount( p_owner->p_fifo ) );
2054
2055 /* Free all packets still in the decoder fifo. */
2056 block_FifoEmpty( p_owner->p_fifo );
2057 block_FifoRelease( p_owner->p_fifo );
2058
2059 /* */
2060 vlc_mutex_lock( &p_owner->lock );
2061 DecoderFlushBuffering( p_dec );
2062 vlc_mutex_unlock( &p_owner->lock );
2063
2064 /* Cleanup */
2065 if( p_owner->p_aout_input )
2066 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2067 if( p_owner->p_aout )
2068 {
2069 input_resource_RequestAout( p_owner->p_input->p->p_resource,
2070 p_owner->p_aout );
2071 input_SendEventAout( p_owner->p_input );
2072 p_owner->p_aout = NULL;
2073 }
2074 if( p_owner->p_vout )
2075 {
2076 /* Hack to make sure all the the pictures are freed by the decoder
2077 * and that the vout is not paused anymore */
2078 vout_Reset( p_owner->p_vout );
2079
2080 /* */
2081 input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, 0, true );
2082 input_SendEventVout( p_owner->p_input );
2083 }
2084
2085 #ifdef ENABLE_SOUT
2086 if( p_owner->p_sout_input )
2087 {
2088 sout_InputDelete( p_owner->p_sout_input );
2089 es_format_Clean( &p_owner->sout );
2090 }
2091 #endif
2092
2093 if( p_dec->fmt_out.i_cat == SPU_ES )
2094 {
2095 vout_thread_t *p_vout;
2096
2097 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2098 if( p_vout )
2099 {
2100 if( p_owner->p_spu_vout == p_vout )
2101 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
2102 vlc_object_release( p_vout );
2103 }
2104 }
2105
2106 es_format_Clean( &p_dec->fmt_in );
2107 es_format_Clean( &p_dec->fmt_out );
2108 if( p_dec->p_description )
2109 vlc_meta_Delete( p_dec->p_description );
2110 es_format_Clean( &p_owner->fmt_description );
2111 if( p_owner->p_description )
2112 vlc_meta_Delete( p_owner->p_description );
2113
2114 if( p_owner->p_packetizer )
2115 {
2116 module_unneed( p_owner->p_packetizer,
2117 p_owner->p_packetizer->p_module );
2118 es_format_Clean( &p_owner->p_packetizer->fmt_in );
2119 es_format_Clean( &p_owner->p_packetizer->fmt_out );
2120 if( p_owner->p_packetizer->p_description )
2121 vlc_meta_Delete( p_owner->p_packetizer->p_description );
2122 vlc_object_release( p_owner->p_packetizer );
2123 }
2124
2125 vlc_cond_destroy( &p_owner->wait_acknowledge );
2126 vlc_cond_destroy( &p_owner->wait_request );
2127 vlc_mutex_destroy( &p_owner->lock );
2128
2129 vlc_object_release( p_dec );
2130
2131 free( p_owner );
2132 }
2133
2134 /*****************************************************************************
2135 * Buffers allocation callbacks for the decoders
2136 *****************************************************************************/
2137 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2138 {
2139 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2140
2141 vlc_assert_locked( &p_owner->lock );
2142
2143 p_owner->b_fmt_description = true;
2144
2145 /* Copy es_format */
2146 es_format_Clean( &p_owner->fmt_description );
2147 es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2148
2149 /* Move p_description */
2150 if( p_owner->p_description && p_dec->p_description )
2151 vlc_meta_Delete( p_owner->p_description );
2152 p_owner->p_description = p_dec->p_description;
2153 p_dec->p_description = NULL;
2154 }
2155 static vout_thread_t *aout_request_vout( void *p_private,
2156 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2157 {
2158 decoder_t *p_dec = p_private;
2159 input_thread_t *p_input = p_dec->p_owner->p_input;
2160
2161 p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, 1, b_recyle );
2162 input_SendEventVout( p_input );
2163
2164 return p_vout;
2165 }
2166
2167 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2168 {
2169 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2170 aout_buffer_t *p_buffer;
2171
2172 if( p_owner->p_aout_input != NULL &&
2173 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2174 p_dec->fmt_out.audio.i_original_channels !=
2175 p_owner->audio.i_original_channels ||
2176 p_dec->fmt_out.audio.i_bytes_per_frame !=
2177 p_owner->audio.i_bytes_per_frame ) )
2178 {
2179 aout_input_t *p_aout_input = p_owner->p_aout_input;
2180
2181 /* Parameters changed, restart the aout */
2182 vlc_mutex_lock( &p_owner->lock );
2183
2184 DecoderFlushBuffering( p_dec );
2185
2186 p_owner->p_aout_input = NULL;
2187 aout_DecDelete( p_owner->p_aout, p_aout_input );
2188
2189 vlc_mutex_unlock( &p_owner->lock );
2190 }
2191
2192 if( p_owner->p_aout_input == NULL )
2193 {
2194 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
2195 audio_sample_format_t format;
2196 aout_input_t *p_aout_input;
2197 aout_instance_t *p_aout;
2198 aout_request_vout_t request_vout;
2199
2200 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2201 p_owner->audio = p_dec->fmt_out.audio;
2202
2203 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2204 if( i_force_dolby &&
2205 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2206 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2207 {
2208 if( i_force_dolby == 1 )
2209 {
2210 format.i_original_channels = format.i_original_channels |
2211 AOUT_CHAN_DOLBYSTEREO;
2212 }
2213 else /* i_force_dolby == 2 */
2214 {
2215 format.i_original_channels = format.i_original_channels &
2216 ~AOUT_CHAN_DOLBYSTEREO;
2217 }
2218 }
2219
2220 request_vout.pf_request_vout = aout_request_vout;
2221 request_vout.p_private = p_dec;
2222
2223 p_aout = p_owner->p_aout;
2224 if( !p_aout )
2225 p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2226 p_aout_input = aout_DecNew( p_dec, &p_aout,
2227 &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2228
2229 vlc_mutex_lock( &p_owner->lock );
2230
2231 p_owner->p_aout = p_aout;
2232 p_owner->p_aout_input = p_aout_input;
2233 DecoderUpdateFormatLocked( p_dec );
2234
2235 vlc_mutex_unlock( &p_owner->lock );
2236
2237 input_SendEventAout( p_owner->p_input );
2238
2239 if( p_owner->p_aout_input == NULL )
2240 {
2241 msg_Err( p_dec, "failed to create audio output" );
2242 p_dec->b_error = true;
2243 return NULL;
2244 }
2245 p_dec->fmt_out.audio.i_bytes_per_frame =
2246 p_owner->audio.i_bytes_per_frame;
2247 }
2248
2249 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2250
2251 return p_buffer;
2252 }
2253
2254 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2255 {
2256 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2257
2258 aout_DecDeleteBuffer( p_owner->p_aout,
2259 p_owner->p_aout_input, p_buffer );
2260 }
2261
2262 static picture_t *vout_new_buffer( decoder_t *p_dec )
2263 {
2264 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2265
2266 if( p_owner->p_vout == NULL ||
2267 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2268 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2269 p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2270 p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2271 p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset ||
2272 p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset ||
2273 p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2274 (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2275 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2276 {
2277 vout_thread_t *p_vout;
2278
2279 if( !p_dec->fmt_out.video.i_width ||
2280 !p_dec->fmt_out.video.i_height )
2281 {
2282 /* Can't create a new vout without display size */
2283 return NULL;
2284 }
2285
2286 video_format_t fmt = p_dec->fmt_out.video;
2287 fmt.i_chroma = p_dec->fmt_out.i_codec;
2288 p_owner->video = fmt;
2289
2290 if( !fmt.i_visible_width || !fmt.i_visible_height )
2291 {
2292 if( p_dec->fmt_in.video.i_visible_width &&
2293 p_dec->fmt_in.video.i_visible_height )
2294 {
2295 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2296 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2297 }
2298 else
2299 {
2300 fmt.i_visible_width = fmt.i_width;
2301 fmt.i_visible_height = fmt.i_height;
2302 }
2303 }
2304
2305 if( fmt.i_visible_height == 1088 &&
2306 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2307 {
2308 fmt.i_visible_height = 1080;
2309 if( !(fmt.i_sar_num % 136))
2310 {
2311 fmt.i_sar_num *= 135;
2312 fmt.i_sar_den *= 136;
2313 }
2314 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2315 }
2316
2317 if( !fmt.i_sar_num || !fmt.i_sar_den )
2318 {
2319 fmt.i_sar_num = 1;
2320 fmt.i_sar_den = 1;
2321 }
2322
2323 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2324 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2325
2326 vlc_mutex_lock( &p_owner->lock );
2327
2328 DecoderFlushBuffering( p_dec );
2329
2330 p_vout = p_owner->p_vout;
2331 p_owner->p_vout = NULL;
2332 vlc_mutex_unlock( &p_owner->lock );
2333
2334 unsigned dpb_size;
2335 switch( p_dec->fmt_in.i_codec )
2336 {
2337 case VLC_CODEC_H264:
2338 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2339 dpb_size = 18;
2340 break;
2341 case VLC_CODEC_VP5:
2342 case VLC_CODEC_VP6:
2343 case VLC_CODEC_VP6F:
2344 case VLC_CODEC_VP8:
2345 dpb_size = 3;
2346 break;
2347 default:
2348 dpb_size = 2;
2349 break;
2350 }
2351 p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2352 p_vout, &fmt,
2353 dpb_size + 1 + DECODER_MAX_BUFFERING_COUNT,
2354 true );
2355 vlc_mutex_lock( &p_owner->lock );
2356 p_owner->p_vout = p_vout;
2357
2358 DecoderUpdateFormatLocked( p_dec );
2359
2360 vlc_mutex_unlock( &p_owner->lock );
2361
2362 input_SendEventVout( p_owner->p_input );
2363 if( p_vout == NULL )
2364 {
2365 msg_Err( p_dec, "failed to create video output" );
2366 p_dec->b_error = true;
2367 return NULL;
2368 }
2369 }
2370
2371 /* Get a new picture
2372 */
2373 for( ;; )
2374 {
2375 if( p_dec->b_die || p_dec->b_error )
2376 return NULL;
2377
2378 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2379 if( p_picture )
2380 return p_picture;
2381
2382 if( DecoderIsFlushing( p_dec ) )
2383 return NULL;
2384
2385 /* */
2386 DecoderSignalBuffering( p_dec, true );
2387
2388 /* Check the decoder doesn't leak pictures */
2389 vout_FixLeaks( p_owner->p_vout );
2390
2391 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2392 msleep( VOUT_OUTMEM_SLEEP );
2393 }
2394 }
2395
2396 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2397 {
2398 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2399 }
2400
2401 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2402 {
2403 vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2404 }
2405
2406 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2407 {
2408 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2409 }
2410
2411 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2412 const subpicture_updater_t *p_updater )
2413 {
2414 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2415 vout_thread_t *p_vout = NULL;
2416 subpicture_t *p_subpic;
2417 int i_attempts = 30;
2418
2419 while( i_attempts-- )
2420 {
2421 if( p_dec->b_die || p_dec->b_error )
2422 break;
2423
2424 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2425 if( p_vout )
2426 break;
2427
2428 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2429 }
2430
2431 if( !p_vout )
2432 {
2433 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2434 return NULL;
2435 }
2436
2437 if( p_owner->p_spu_vout != p_vout )
2438 {
2439 vlc_mutex_lock( &p_owner->lock );
2440
2441 DecoderFlushBuffering( p_dec );
2442
2443 vlc_mutex_unlock( &p_owner->lock );
2444
2445 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2446 p_owner->i_spu_order = 0;
2447 p_owner->p_spu_vout = p_vout;
2448 }
2449
2450 p_subpic = subpicture_New( p_updater );
2451 if( p_subpic )
2452 {
2453 p_subpic->i_channel = p_owner->i_spu_channel;
2454 p_subpic->i_order = p_owner->i_spu_order++;
2455 p_subpic->b_subtitle = true;
2456 }
2457
2458 vlc_object_release( p_vout );
2459
2460 return p_subpic;
2461 }
2462
2463 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2464 {
2465 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2466 vout_thread_t *p_vout = NULL;
2467
2468 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2469 if( !p_vout || p_owner->p_spu_vout != p_vout )
2470 {
2471 if( p_vout )
2472 vlc_object_release( p_vout );
2473 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2474 return;
2475 }
2476
2477 subpicture_Delete( p_subpic );
2478
2479 vlc_object_release( p_vout );
2480 }
2481