1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 VLC authors and VideoLAN
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 * Laurent Aimar <fenrir@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * (at your option) any later version.
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 Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
34 #include <vlc_common.h>
36 #include <vlc_block.h>
40 #include <vlc_codec.h>
43 #include <vlc_dialog.h>
44 #include <vlc_modules.h>
46 #include "audio_output/aout_internal.h"
47 #include "stream_output/stream_output.h"
48 #include "input_internal.h"
54 #include "../video_output/vout_control.h"
56 static decoder_t *CreateDecoder( vlc_object_t *, input_thread_t *,
57 const es_format_t *, bool, input_resource_t *,
58 sout_instance_t *p_sout );
59 static void DeleteDecoder( decoder_t * );
61 static void *DecoderThread( void * );
62 static void DecoderProcess( decoder_t *, block_t * );
63 static void DecoderFlush( decoder_t * );
64 static void DecoderSignalWait( decoder_t *, bool );
66 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
68 /* Buffers allocation callbacks for the decoders */
69 static int vout_update_format( decoder_t * );
70 static picture_t *vout_new_buffer( decoder_t * );
71 static int aout_update_format( decoder_t * );
72 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
74 struct decoder_owner_sys_t
76 int64_t i_preroll_end;
78 input_thread_t *p_input;
79 input_resource_t*p_resource;
80 input_clock_t *p_clock;
83 vout_thread_t *p_spu_vout;
87 sout_instance_t *p_sout;
88 sout_packetizer_input_t *p_sout_input;
92 /* Some decoders require already packetized data (ie. not truncated) */
93 decoder_t *p_packetizer;
96 /* Current format in use by the output */
100 bool b_fmt_description;
101 vlc_meta_t *p_description;
104 block_fifo_t *p_fifo;
106 /* Lock for communication with decoder thread */
108 vlc_cond_t wait_request;
109 vlc_cond_t wait_acknowledge;
111 /* -- These variables need locking on write(only) -- */
112 audio_output_t *p_aout;
114 vout_thread_t *p_vout;
116 /* -- Theses variables need locking on read *and* write -- */
141 decoder_t *pp_decoder[4];
148 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
149 * a bogus PTS and won't be displayed */
150 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
153 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
156 /*****************************************************************************
158 *****************************************************************************/
159 picture_t *decoder_NewPicture( decoder_t *p_decoder )
161 if( decoder_UpdateVideoFormat( p_decoder ) )
164 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
166 msg_Warn( p_decoder, "can't get output picture" );
170 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
172 if( decoder_UpdateAudioFormat( dec ) )
175 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
176 / dec->fmt_out.audio.i_frame_length;
177 block_t *block = block_Alloc( length );
178 if( likely(block != NULL) )
180 block->i_nb_samples = samples;
181 block->i_pts = block->i_length = 0;
186 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
187 const subpicture_updater_t *p_dyn )
189 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
191 msg_Warn( p_decoder, "can't get output subpicture" );
195 /* decoder_GetInputAttachments:
197 int decoder_GetInputAttachments( decoder_t *p_dec,
198 input_attachment_t ***ppp_attachment,
201 if( !p_dec->pf_get_attachments )
204 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
206 /* decoder_GetDisplayDate:
208 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
210 if( !p_dec->pf_get_display_date )
211 return VLC_TS_INVALID;
213 return p_dec->pf_get_display_date( p_dec, i_ts );
215 /* decoder_GetDisplayRate:
217 int decoder_GetDisplayRate( decoder_t *p_dec )
219 if( !p_dec->pf_get_display_rate )
220 return INPUT_RATE_DEFAULT;
222 return p_dec->pf_get_display_rate( p_dec );
225 /* TODO: pass p_sout through p_resource? -- Courmisch */
226 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
227 const es_format_t *fmt, input_clock_t *p_clock,
228 input_resource_t *p_resource,
229 sout_instance_t *p_sout )
231 decoder_t *p_dec = NULL;
232 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
235 /* Create the decoder configuration structure */
236 p_dec = CreateDecoder( p_parent, p_input, fmt,
237 p_sout != NULL, p_resource, p_sout );
240 msg_Err( p_parent, "could not create %s", psz_type );
241 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
242 _("VLC could not open the %s module."),
243 vlc_gettext( psz_type ) );
247 if( !p_dec->p_module )
249 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
251 DeleteDecoder( p_dec );
255 p_dec->p_owner->p_clock = p_clock;
256 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
258 if( p_dec->fmt_out.i_cat == AUDIO_ES )
259 i_priority = VLC_THREAD_PRIORITY_AUDIO;
261 i_priority = VLC_THREAD_PRIORITY_VIDEO;
263 /* Spawn the decoder thread */
264 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
266 msg_Err( p_dec, "cannot spawn decoder thread" );
267 module_unneed( p_dec, p_dec->p_module );
268 DeleteDecoder( p_dec );
277 * Spawns a new decoder thread from the input thread
279 * \param p_input the input thread
280 * \param p_es the es descriptor
281 * \return the spawned decoder object
283 decoder_t *input_DecoderNew( input_thread_t *p_input,
284 es_format_t *fmt, input_clock_t *p_clock,
285 sout_instance_t *p_sout )
287 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
288 p_input->p->p_resource, p_sout );
292 * Spawn a decoder thread outside of the input thread.
294 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
295 input_resource_t *p_resource )
297 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
302 * Kills a decoder thread and waits until it's finished
304 * \param p_input the input thread
305 * \param p_es the es descriptor
308 void input_DecoderDelete( decoder_t *p_dec )
310 decoder_owner_sys_t *p_owner = p_dec->p_owner;
312 vlc_cancel( p_owner->thread );
314 /* Make sure we aren't paused/waiting/decoding anymore */
315 vlc_mutex_lock( &p_owner->lock );
316 p_owner->b_paused = false;
317 p_owner->b_waiting = false;
318 p_owner->b_flushing = true;
319 p_owner->b_exit = true;
320 vlc_cond_signal( &p_owner->wait_request );
321 vlc_mutex_unlock( &p_owner->lock );
323 vlc_join( p_owner->thread, NULL );
325 module_unneed( p_dec, p_dec->p_module );
328 if( p_dec->p_owner->cc.b_supported )
331 for( i = 0; i < 4; i++ )
332 input_DecoderSetCcState( p_dec, false, i );
336 DeleteDecoder( p_dec );
340 * Put a block_t in the decoder's fifo.
341 * Thread-safe w.r.t. the decoder. May be a cancellation point.
343 * \param p_dec the decoder object
344 * \param p_block the data block
346 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
348 decoder_owner_sys_t *p_owner = p_dec->p_owner;
352 /* The fifo is not consumed when waiting and so will
354 * There is no need to lock as b_waiting is never modified
355 * inside decoder thread. */
356 if( !p_owner->b_waiting )
357 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
359 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
361 /* FIXME: ideally we would check the time amount of data
362 * in the FIFO instead of its size. */
363 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
364 "consumed quickly enough), resetting fifo!" );
365 block_FifoEmpty( p_owner->p_fifo );
368 block_FifoPut( p_owner->p_fifo, p_block );
371 bool input_DecoderIsEmpty( decoder_t * p_dec )
373 decoder_owner_sys_t *p_owner = p_dec->p_owner;
374 assert( !p_owner->b_waiting );
376 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
380 vlc_mutex_lock( &p_owner->lock );
381 /* TODO subtitles support */
382 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
383 b_empty = vout_IsEmpty( p_owner->p_vout );
384 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
385 b_empty = aout_DecIsEmpty( p_owner->p_aout );
386 vlc_mutex_unlock( &p_owner->lock );
391 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
393 decoder_owner_sys_t *p_owner = p_dec->p_owner;
396 vlc_mutex_lock( &p_owner->lock );
397 for( i = 0; i < 4; i++ )
398 pb_present[i] = p_owner->cc.pb_present[i];
399 vlc_mutex_unlock( &p_owner->lock );
401 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
403 decoder_owner_sys_t *p_owner = p_dec->p_owner;
405 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
407 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
412 static const vlc_fourcc_t fcc[4] = {
413 VLC_FOURCC('c', 'c', '1', ' '),
414 VLC_FOURCC('c', 'c', '2', ' '),
415 VLC_FOURCC('c', 'c', '3', ' '),
416 VLC_FOURCC('c', 'c', '4', ' '),
421 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
422 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
423 p_dec->p_owner->p_clock, p_owner->p_sout );
426 msg_Err( p_dec, "could not create decoder" );
427 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
428 _("VLC could not open the decoder module.") );
431 else if( !p_cc->p_module )
433 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
434 input_DecoderDelete(p_cc);
437 p_cc->p_owner->p_clock = p_owner->p_clock;
439 vlc_mutex_lock( &p_owner->lock );
440 p_owner->cc.pp_decoder[i_channel] = p_cc;
441 vlc_mutex_unlock( &p_owner->lock );
447 vlc_mutex_lock( &p_owner->lock );
448 p_cc = p_owner->cc.pp_decoder[i_channel];
449 p_owner->cc.pp_decoder[i_channel] = NULL;
450 vlc_mutex_unlock( &p_owner->lock );
453 input_DecoderDelete(p_cc);
457 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
459 decoder_owner_sys_t *p_owner = p_dec->p_owner;
462 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
465 vlc_mutex_lock( &p_owner->lock );
466 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
467 vlc_mutex_unlock( &p_owner->lock );
471 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
473 decoder_owner_sys_t *p_owner = p_dec->p_owner;
475 vlc_mutex_lock( &p_owner->lock );
476 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
477 * while the input is paused (e.g. add sub file), then b_paused is
478 * (incorrectly) false. */
479 if( likely(p_owner->b_paused != b_paused) ) {
480 p_owner->b_paused = b_paused;
481 p_owner->pause.i_date = i_date;
482 p_owner->pause.i_ignore = 0;
483 vlc_cond_signal( &p_owner->wait_request );
485 /* XXX only audio and video output have to be paused.
486 * - for sout it is useless
487 * - for subs, it is done by the vout
489 if( p_dec->fmt_out.i_cat == AUDIO_ES )
491 if( p_owner->p_aout )
492 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
494 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
496 if( p_owner->p_vout )
497 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
500 vlc_mutex_unlock( &p_owner->lock );
503 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
505 decoder_owner_sys_t *p_owner = p_dec->p_owner;
507 vlc_mutex_lock( &p_owner->lock );
508 p_owner->i_ts_delay = i_delay;
509 vlc_mutex_unlock( &p_owner->lock );
512 void input_DecoderStartWait( decoder_t *p_dec )
514 decoder_owner_sys_t *p_owner = p_dec->p_owner;
516 assert( !p_owner->b_waiting );
518 vlc_mutex_lock( &p_owner->lock );
519 DecoderFlush( p_dec );
521 p_owner->b_first = true;
522 p_owner->b_has_data = false;
523 p_owner->b_waiting = true;
524 vlc_cond_signal( &p_owner->wait_request );
525 vlc_mutex_unlock( &p_owner->lock );
528 void input_DecoderStopWait( decoder_t *p_dec )
530 decoder_owner_sys_t *p_owner = p_dec->p_owner;
532 assert( p_owner->b_waiting );
534 vlc_mutex_lock( &p_owner->lock );
535 p_owner->b_waiting = false;
536 vlc_cond_signal( &p_owner->wait_request );
537 vlc_mutex_unlock( &p_owner->lock );
540 void input_DecoderWait( decoder_t *p_dec )
542 decoder_owner_sys_t *p_owner = p_dec->p_owner;
544 assert( p_owner->b_waiting );
546 vlc_mutex_lock( &p_owner->lock );
547 while( !p_owner->b_has_data )
549 vlc_fifo_Lock( p_owner->p_fifo );
550 p_owner->b_woken = true;
551 vlc_fifo_Signal( p_owner->p_fifo );
552 vlc_fifo_Unlock( p_owner->p_fifo );
553 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
555 vlc_mutex_unlock( &p_owner->lock );
558 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
560 decoder_owner_sys_t *p_owner = p_dec->p_owner;
564 vlc_mutex_lock( &p_owner->lock );
565 if( p_dec->fmt_out.i_cat == VIDEO_ES )
567 if( p_owner->b_paused && p_owner->p_vout )
569 vout_NextPicture( p_owner->p_vout, pi_duration );
570 p_owner->pause.i_ignore++;
571 vlc_cond_signal( &p_owner->wait_request );
576 /* TODO subtitle should not be flushed */
577 DecoderFlush( p_dec );
579 vlc_mutex_unlock( &p_owner->lock );
582 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
584 decoder_owner_sys_t *p_owner = p_dec->p_owner;
587 vlc_mutex_lock( &p_owner->lock );
588 b_changed = p_owner->b_fmt_description;
592 es_format_Copy( p_fmt, &p_owner->fmt );
597 if( p_owner->p_description )
599 *pp_meta = vlc_meta_New();
601 vlc_meta_Merge( *pp_meta, p_owner->p_description );
604 p_owner->b_fmt_description = false;
606 vlc_mutex_unlock( &p_owner->lock );
610 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
612 decoder_owner_sys_t *p_owner = p_dec->p_owner;
614 return block_FifoSize( p_owner->p_fifo );
617 void input_DecoderGetObjects( decoder_t *p_dec,
618 vout_thread_t **pp_vout, audio_output_t **pp_aout )
620 decoder_owner_sys_t *p_owner = p_dec->p_owner;
622 vlc_mutex_lock( &p_owner->lock );
624 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
626 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
627 vlc_mutex_unlock( &p_owner->lock );
630 /*****************************************************************************
632 *****************************************************************************/
633 static int DecoderGetInputAttachments( decoder_t *p_dec,
634 input_attachment_t ***ppp_attachment,
637 input_thread_t *p_input = p_dec->p_owner->p_input;
639 if( unlikely(p_input == NULL) )
641 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
642 ppp_attachment, pi_attachment );
644 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
646 decoder_owner_sys_t *p_owner = p_dec->p_owner;
648 vlc_mutex_lock( &p_owner->lock );
649 if( p_owner->b_waiting || p_owner->b_paused )
650 i_ts = VLC_TS_INVALID;
651 vlc_mutex_unlock( &p_owner->lock );
653 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
656 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
657 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
658 return VLC_TS_INVALID;
663 static int DecoderGetDisplayRate( decoder_t *p_dec )
665 decoder_owner_sys_t *p_owner = p_dec->p_owner;
667 if( !p_owner->p_clock )
668 return INPUT_RATE_DEFAULT;
669 return input_clock_GetRate( p_owner->p_clock );
673 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
675 if (codec != VLC_FOURCC('u','n','d','f')) {
676 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
678 desc = N_("No description for this codec");
679 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
680 dialog_Fatal( p_dec, _("Codec not supported"),
681 _("VLC could not decode the format \"%4.4s\" (%s)"),
682 (char*)&codec, desc );
684 msg_Err( p_dec, "could not identify codec" );
685 dialog_Fatal( p_dec, _("Unidentified codec"),
686 _("VLC could not identify the audio or video codec" ) );
692 * Create a decoder object
694 * \param p_input the input thread
695 * \param p_es the es descriptor
696 * \param b_packetizer instead of a decoder
697 * \return the decoder object
699 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
700 input_thread_t *p_input,
701 const es_format_t *fmt, bool b_packetizer,
702 input_resource_t *p_resource,
703 sout_instance_t *p_sout )
706 decoder_owner_sys_t *p_owner;
707 es_format_t null_es_format;
709 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
713 p_dec->pf_decode_audio = NULL;
714 p_dec->pf_decode_video = NULL;
715 p_dec->pf_decode_sub = NULL;
716 p_dec->pf_get_cc = NULL;
717 p_dec->pf_packetize = NULL;
719 /* Initialize the decoder */
720 p_dec->p_module = NULL;
722 memset( &null_es_format, 0, sizeof(es_format_t) );
723 es_format_Copy( &p_dec->fmt_in, fmt );
724 es_format_Copy( &p_dec->fmt_out, &null_es_format );
726 p_dec->p_description = NULL;
728 /* Allocate our private structure for the decoder */
729 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
730 if( unlikely(p_owner == NULL) )
732 vlc_object_release( p_dec );
735 p_owner->i_preroll_end = VLC_TS_INVALID;
736 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
737 p_owner->p_input = p_input;
738 p_owner->p_resource = p_resource;
739 p_owner->p_aout = NULL;
740 p_owner->p_vout = NULL;
741 p_owner->p_spu_vout = NULL;
742 p_owner->i_spu_channel = 0;
743 p_owner->i_spu_order = 0;
744 p_owner->p_sout = p_sout;
745 p_owner->p_sout_input = NULL;
746 p_owner->p_packetizer = NULL;
747 p_owner->b_packetizer = b_packetizer;
748 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
751 p_owner->b_woken = false;
752 p_owner->p_fifo = block_FifoNew();
753 if( unlikely(p_owner->p_fifo == NULL) )
756 vlc_object_release( p_dec );
760 /* Set buffers allocation callbacks for the decoders */
761 p_dec->pf_aout_format_update = aout_update_format;
762 p_dec->pf_vout_format_update = vout_update_format;
763 p_dec->pf_vout_buffer_new = vout_new_buffer;
764 p_dec->pf_spu_buffer_new = spu_new_buffer;
766 p_dec->pf_get_attachments = DecoderGetInputAttachments;
767 p_dec->pf_get_display_date = DecoderGetDisplayDate;
768 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
770 /* Find a suitable decoder/packetizer module */
772 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
774 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
776 /* Check if decoder requires already packetized data */
778 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
780 p_owner->p_packetizer =
781 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
782 if( p_owner->p_packetizer )
784 es_format_Copy( &p_owner->p_packetizer->fmt_in,
787 es_format_Copy( &p_owner->p_packetizer->fmt_out,
790 p_owner->p_packetizer->p_module =
791 module_need( p_owner->p_packetizer,
792 "packetizer", "$packetizer", false );
794 if( !p_owner->p_packetizer->p_module )
796 es_format_Clean( &p_owner->p_packetizer->fmt_in );
797 vlc_object_release( p_owner->p_packetizer );
798 p_owner->p_packetizer = NULL;
803 /* Copy ourself the input replay gain */
804 if( fmt->i_cat == AUDIO_ES )
806 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
808 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
810 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
811 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
813 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
815 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
816 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
822 vlc_mutex_init( &p_owner->lock );
823 vlc_cond_init( &p_owner->wait_request );
824 vlc_cond_init( &p_owner->wait_acknowledge );
826 p_owner->b_fmt_description = false;
827 p_owner->p_description = NULL;
829 p_owner->b_exit = false;
831 p_owner->b_paused = false;
832 p_owner->pause.i_date = VLC_TS_INVALID;
833 p_owner->pause.i_ignore = 0;
835 p_owner->b_waiting = false;
836 p_owner->b_first = true;
837 p_owner->b_has_data = false;
839 p_owner->b_flushing = false;
842 p_owner->cc.b_supported = false;
845 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
846 p_owner->cc.b_supported = true;
847 if( p_dec->pf_get_cc )
848 p_owner->cc.b_supported = true;
851 for( unsigned i = 0; i < 4; i++ )
853 p_owner->cc.pb_present[i] = false;
854 p_owner->cc.pp_decoder[i] = NULL;
856 p_owner->i_ts_delay = 0;
861 * The decoding main loop
863 * \param p_dec the decoder
865 static void *DecoderThread( void *p_data )
867 decoder_t *p_dec = (decoder_t *)p_data;
868 decoder_owner_sys_t *p_owner = p_dec->p_owner;
870 /* The decoder's main loop */
875 vlc_fifo_Lock( p_owner->p_fifo );
876 vlc_fifo_CleanupPush( p_owner->p_fifo );
878 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
880 if( p_owner->b_woken )
882 vlc_fifo_Wait( p_owner->p_fifo );
883 /* Make sure there is no cancellation point other than this one^^.
884 * If you need one, be sure to push cleanup of p_block. */
887 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
888 p_owner->b_woken = false;
891 bool end_wait = !p_block || p_block->i_flags & BLOCK_FLAG_CORE_EOS;
892 DecoderSignalWait( p_dec, end_wait );
896 int canc = vlc_savecancel();
898 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
900 /* calling DecoderProcess() with NULL block will make
901 * decoders/packetizers flush their buffers */
902 block_Release( p_block );
906 DecoderProcess( p_dec, p_block );
908 vlc_restorecancel( canc );
914 static block_t *DecoderBlockFlushNew()
916 block_t *p_null = block_Alloc( 128 );
920 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
921 BLOCK_FLAG_CORRUPTED |
922 BLOCK_FLAG_CORE_FLUSH;
923 memset( p_null->p_buffer, 0, p_null->i_buffer );
928 static void DecoderFlush( decoder_t *p_dec )
930 decoder_owner_sys_t *p_owner = p_dec->p_owner;
932 vlc_assert_locked( &p_owner->lock );
935 block_FifoEmpty( p_owner->p_fifo );
937 p_owner->b_waiting = false;
938 /* Monitor for flush end */
939 p_owner->b_flushing = true;
940 vlc_cond_signal( &p_owner->wait_request );
942 /* Send a special block */
943 block_t *p_null = DecoderBlockFlushNew();
946 input_DecoderDecode( p_dec, p_null, false );
949 while( p_owner->b_flushing )
950 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
953 static void DecoderSignalWait( decoder_t *p_dec, bool b_has_data )
955 decoder_owner_sys_t *p_owner = p_dec->p_owner;
957 vlc_mutex_lock( &p_owner->lock );
959 if( p_owner->b_waiting )
962 p_owner->b_has_data = true;
963 vlc_cond_signal( &p_owner->wait_acknowledge );
966 vlc_mutex_unlock( &p_owner->lock );
969 static bool DecoderIsFlushing( decoder_t *p_dec )
971 decoder_owner_sys_t *p_owner = p_dec->p_owner;
974 vlc_mutex_lock( &p_owner->lock );
976 b_flushing = p_owner->b_flushing;
978 vlc_mutex_unlock( &p_owner->lock );
983 static bool DecoderWaitUnblock( decoder_t *p_dec )
985 decoder_owner_sys_t *p_owner = p_dec->p_owner;
987 vlc_assert_locked( &p_owner->lock );
991 if( p_owner->b_flushing )
993 if( p_owner->b_paused )
995 if( p_owner->b_waiting && !p_owner->b_has_data )
997 if( p_owner->pause.i_ignore > 0 )
999 p_owner->pause.i_ignore--;
1005 if( !p_owner->b_waiting || !p_owner->b_has_data )
1008 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1011 return p_owner->b_flushing;
1014 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1016 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1017 *pi_preroll = INT64_MAX;
1018 else if( p->i_dts > VLC_TS_INVALID )
1019 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1020 else if( p->i_pts > VLC_TS_INVALID )
1021 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1024 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1025 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1027 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1028 input_clock_t *p_clock = p_owner->p_clock;
1030 vlc_assert_locked( &p_owner->lock );
1032 const mtime_t i_es_delay = p_owner->i_ts_delay;
1037 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1040 if( *pi_ts0 > VLC_TS_INVALID )
1042 *pi_ts0 += i_es_delay;
1043 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1044 *pi_ts1 += i_es_delay;
1045 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1046 if( pi_ts1 != NULL )
1047 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1048 ", %"PRId64"", *pi_ts0, *pi_ts1);
1050 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1051 *pi_ts0 = VLC_TS_INVALID;
1056 i_rate = input_clock_GetRate( p_clock );
1059 /* Do not create ephemere data because of rounding errors */
1060 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1064 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1065 / INPUT_RATE_DEFAULT;
1071 static bool DecoderIsExitRequested( decoder_t *p_dec )
1073 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1075 vlc_mutex_lock( &p_owner->lock );
1076 bool b_exit = p_owner->b_exit;
1077 vlc_mutex_unlock( &p_owner->lock );
1083 * If *pb_reject, it does nothing, otherwise it waits for the given
1084 * deadline or a flush request (in which case it set *pi_reject to true.
1086 static void DecoderWaitDate( decoder_t *p_dec,
1087 bool *pb_reject, mtime_t i_deadline )
1089 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1091 vlc_assert_locked( &p_owner->lock );
1093 if( *pb_reject || i_deadline < 0 )
1098 if( p_owner->b_flushing || p_owner->b_exit )
1104 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1105 i_deadline ) == 0 );
1108 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1109 int *pi_played_sum, int *pi_lost_sum )
1111 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1112 audio_output_t *p_aout = p_owner->p_aout;
1115 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1117 msg_Warn( p_dec, "non-dated audio buffer received" );
1119 block_Release( p_audio );
1124 vlc_mutex_lock( &p_owner->lock );
1126 if( p_audio && p_owner->b_waiting )
1128 p_owner->b_has_data = true;
1129 vlc_cond_signal( &p_owner->wait_acknowledge );
1136 bool b_reject = DecoderWaitUnblock( p_dec );
1138 b_paused = p_owner->b_paused;
1144 int i_rate = INPUT_RATE_DEFAULT;
1146 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1147 &i_rate, AOUT_MAX_ADVANCE_TIME );
1149 if( p_audio->i_pts <= VLC_TS_INVALID
1150 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1151 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1154 DecoderWaitDate( p_dec, &b_reject,
1155 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1157 if( unlikely(p_owner->b_paused != b_paused) )
1158 continue; /* race with input thread? retry... */
1159 if( p_aout == NULL )
1164 assert( !p_owner->b_paused );
1165 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1166 *pi_played_sum += 1;
1167 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1171 msg_Dbg( p_dec, "discarded audio buffer" );
1173 block_Release( p_audio );
1178 vlc_mutex_unlock( &p_owner->lock );
1181 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1183 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1184 block_t *p_aout_buf;
1190 /* Play a NULL block to output buffered frames */
1191 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1193 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1195 if( DecoderIsExitRequested( p_dec ) )
1197 /* It prevent freezing VLC in case of broken decoder */
1198 block_Release( p_aout_buf );
1200 block_Release( p_block );
1205 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1206 p_aout_buf->i_pts < p_owner->i_preroll_end )
1208 block_Release( p_aout_buf );
1212 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1214 msg_Dbg( p_dec, "End of audio preroll" );
1215 if( p_owner->p_aout )
1216 aout_DecFlush( p_owner->p_aout );
1218 p_owner->i_preroll_end = VLC_TS_INVALID;
1221 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1224 /* Update ugly stat */
1225 input_thread_t *p_input = p_owner->p_input;
1227 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1229 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1230 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1231 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1232 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1233 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1236 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1238 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1241 bool b_processed = false;
1245 assert( p_dec_cc->pf_get_cc != NULL );
1247 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1248 if( !p_owner->cc.b_supported )
1251 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1255 vlc_mutex_lock( &p_owner->lock );
1256 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1258 p_owner->cc.pb_present[i] |= pb_present[i];
1259 if( p_owner->cc.pp_decoder[i] )
1263 for( i = 0; i < 4; i++ )
1265 if( !p_owner->cc.pp_decoder[i] )
1268 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1269 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1274 vlc_mutex_unlock( &p_owner->lock );
1277 block_Release( p_cc );
1280 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1281 int *pi_played_sum, int *pi_lost_sum )
1283 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1284 vout_thread_t *p_vout = p_owner->p_vout;
1286 if( p_picture->date <= VLC_TS_INVALID )
1288 msg_Warn( p_dec, "non-dated video buffer received" );
1290 picture_Release( p_picture );
1295 vlc_mutex_lock( &p_owner->lock );
1297 if( p_owner->b_waiting && !p_owner->b_first )
1299 p_owner->b_has_data = true;
1300 vlc_cond_signal( &p_owner->wait_acknowledge );
1302 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1304 bool b_reject = DecoderWaitUnblock( p_dec );
1306 if( p_owner->b_waiting )
1308 assert( p_owner->b_first );
1309 msg_Dbg( p_dec, "Received first picture" );
1310 p_owner->b_first = false;
1311 p_picture->b_force = true;
1314 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1315 int i_rate = INPUT_RATE_DEFAULT;
1316 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1317 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1319 vlc_mutex_unlock( &p_owner->lock );
1322 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1327 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1329 /* Be sure to not display old picture after our own */
1330 vout_Flush( p_vout, p_picture->date );
1331 p_owner->i_last_rate = i_rate;
1333 vout_PutPicture( p_vout, p_picture );
1338 msg_Warn( p_dec, "early picture skipped" );
1340 msg_Warn( p_dec, "non-dated video buffer received" );
1343 picture_Release( p_picture );
1347 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1349 *pi_played_sum += i_tmp_display;
1350 *pi_lost_sum += i_tmp_lost;
1353 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1355 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1359 int i_displayed = 0;
1361 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1363 vout_thread_t *p_vout = p_owner->p_vout;
1364 if( DecoderIsExitRequested( p_dec ) )
1366 /* It prevent freezing VLC in case of broken decoder */
1367 picture_Release( p_pic );
1369 block_Release( p_block );
1375 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1377 picture_Release( p_pic );
1381 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1383 msg_Dbg( p_dec, "End of video preroll" );
1385 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1387 p_owner->i_preroll_end = VLC_TS_INVALID;
1390 if( p_dec->pf_get_cc &&
1391 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1392 DecoderGetCc( p_dec, p_dec );
1394 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1397 /* Update ugly stat */
1398 input_thread_t *p_input = p_owner->p_input;
1400 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1402 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1403 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1404 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1405 stats_Update( p_input->p->counters.p_displayed_pictures,
1407 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1411 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1413 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1414 vout_thread_t *p_vout = p_owner->p_spu_vout;
1417 if( p_subpic->i_start <= VLC_TS_INVALID )
1419 msg_Warn( p_dec, "non-dated spu buffer received" );
1420 subpicture_Delete( p_subpic );
1425 vlc_mutex_lock( &p_owner->lock );
1427 if( p_owner->b_waiting )
1429 p_owner->b_has_data = true;
1430 vlc_cond_signal( &p_owner->wait_acknowledge );
1433 bool b_reject = DecoderWaitUnblock( p_dec );
1435 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1438 if( p_subpic->i_start <= VLC_TS_INVALID )
1441 DecoderWaitDate( p_dec, &b_reject,
1442 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1443 vlc_mutex_unlock( &p_owner->lock );
1446 vout_PutSubpicture( p_vout, p_subpic );
1448 subpicture_Delete( p_subpic );
1452 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1454 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1456 assert( p_owner->p_clock );
1457 assert( !p_sout_block->p_next );
1459 vlc_mutex_lock( &p_owner->lock );
1461 if( p_owner->b_waiting )
1463 p_owner->b_has_data = true;
1464 vlc_cond_signal( &p_owner->wait_acknowledge );
1467 bool b_reject = DecoderWaitUnblock( p_dec );
1469 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1470 &p_sout_block->i_length, NULL, INT64_MAX );
1472 vlc_mutex_unlock( &p_owner->lock );
1476 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1477 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1481 block_Release( p_sout_block );
1482 return VLC_EGENERIC;
1488 /* This function process a block for sout
1490 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1492 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1493 block_t *p_sout_block;
1495 while( ( p_sout_block =
1496 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1498 if( p_owner->p_sout_input == NULL )
1500 assert( !p_owner->b_fmt_description ); // no need for owner lock
1501 es_format_Clean( &p_owner->fmt );
1502 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1504 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1505 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1506 if( p_dec->fmt_in.psz_language )
1508 free( p_owner->fmt.psz_language );
1509 p_owner->fmt.psz_language =
1510 strdup( p_dec->fmt_in.psz_language );
1513 p_owner->p_sout_input =
1514 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1516 if( p_owner->p_sout_input == NULL )
1518 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1519 (char *)&p_owner->fmt.i_codec );
1520 p_dec->b_error = true;
1522 block_ChainRelease(p_sout_block);
1527 while( p_sout_block )
1529 block_t *p_next = p_sout_block->p_next;
1531 p_sout_block->p_next = NULL;
1533 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1535 msg_Err( p_dec, "cannot continue streaming due to errors" );
1537 p_dec->b_error = true;
1540 block_ChainRelease( p_next );
1544 p_sout_block = p_next;
1550 /* This function process a video block
1552 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1554 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1556 if( p_owner->p_packetizer )
1558 block_t *p_packetized_block;
1559 decoder_t *p_packetizer = p_owner->p_packetizer;
1561 while( (p_packetized_block =
1562 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1564 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1566 es_format_Clean( &p_dec->fmt_in );
1567 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1570 /* If the packetizer provides aspect ratio information, pass it
1571 * to the decoder as a hint if the decoder itself can't provide
1572 * it. Copy it regardless of the current value of the decoder input
1573 * format aspect ratio, to properly propagate changes in aspect
1575 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1576 p_packetizer->fmt_out.video.i_sar_den > 0)
1578 p_dec->fmt_in.video.i_sar_num =
1579 p_packetizer->fmt_out.video.i_sar_num;
1580 p_dec->fmt_in.video.i_sar_den=
1581 p_packetizer->fmt_out.video.i_sar_den;
1584 if( p_packetizer->pf_get_cc )
1585 DecoderGetCc( p_dec, p_packetizer );
1587 while( p_packetized_block )
1589 block_t *p_next = p_packetized_block->p_next;
1590 p_packetized_block->p_next = NULL;
1592 DecoderDecodeVideo( p_dec, p_packetized_block );
1594 p_packetized_block = p_next;
1597 /* The packetizer does not output a block that tell the decoder to flush
1601 block_t *p_null = DecoderBlockFlushNew();
1603 DecoderDecodeVideo( p_dec, p_null );
1608 DecoderDecodeVideo( p_dec, p_block );
1611 if( b_flush && p_owner->p_vout )
1612 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1615 /* This function process a audio block
1617 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1619 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1621 if( p_owner->p_packetizer )
1623 block_t *p_packetized_block;
1624 decoder_t *p_packetizer = p_owner->p_packetizer;
1626 while( (p_packetized_block =
1627 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1629 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1631 es_format_Clean( &p_dec->fmt_in );
1632 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1635 while( p_packetized_block )
1637 block_t *p_next = p_packetized_block->p_next;
1638 p_packetized_block->p_next = NULL;
1640 DecoderDecodeAudio( p_dec, p_packetized_block );
1642 p_packetized_block = p_next;
1645 /* The packetizer does not output a block that tell the decoder to flush
1649 block_t *p_null = DecoderBlockFlushNew();
1651 DecoderDecodeAudio( p_dec, p_null );
1656 DecoderDecodeAudio( p_dec, p_block );
1659 if( b_flush && p_owner->p_aout )
1660 aout_DecFlush( p_owner->p_aout );
1663 /* This function process a subtitle block
1665 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1667 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1669 input_thread_t *p_input = p_owner->p_input;
1670 vout_thread_t *p_vout;
1671 subpicture_t *p_spu;
1673 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1675 if( p_input != NULL )
1677 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1678 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1679 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1682 p_vout = input_resource_HoldVout( p_owner->p_resource );
1683 if( p_vout && p_owner->p_spu_vout == p_vout )
1685 /* Preroll does not work very well with subtitle */
1686 if( p_spu->i_start > VLC_TS_INVALID &&
1687 p_spu->i_start < p_owner->i_preroll_end &&
1688 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1690 subpicture_Delete( p_spu );
1694 DecoderPlaySpu( p_dec, p_spu );
1699 subpicture_Delete( p_spu );
1702 vlc_object_release( p_vout );
1705 if( b_flush && p_owner->p_spu_vout )
1707 p_vout = input_resource_HoldVout( p_owner->p_resource );
1709 if( p_vout && p_owner->p_spu_vout == p_vout )
1710 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1713 vlc_object_release( p_vout );
1718 static void DecoderProcessOnFlush( decoder_t *p_dec )
1720 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1722 vlc_mutex_lock( &p_owner->lock );
1724 if( p_owner->b_flushing )
1726 p_owner->b_flushing = false;
1727 vlc_cond_signal( &p_owner->wait_acknowledge );
1729 vlc_mutex_unlock( &p_owner->lock );
1735 * \param p_dec the decoder object
1736 * \param p_block the block to decode
1737 * \return VLC_SUCCESS or an error code
1739 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1741 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1742 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1744 if( p_dec->b_error )
1747 block_Release( p_block );
1751 if( p_block && p_block->i_buffer <= 0 )
1753 assert( !b_flush_request );
1754 block_Release( p_block );
1759 if( p_owner->b_packetizer )
1762 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1764 DecoderProcessSout( p_dec, p_block );
1769 bool b_flush = false;
1773 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1774 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1776 b_flush = !b_flushing && b_flush_request;
1778 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1781 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1783 DecoderProcessAudio( p_dec, p_block, b_flush );
1785 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1787 DecoderProcessVideo( p_dec, p_block, b_flush );
1789 else if( p_dec->fmt_out.i_cat == SPU_ES )
1791 DecoderProcessSpu( p_dec, p_block, b_flush );
1795 msg_Err( p_dec, "unknown ES format" );
1796 p_dec->b_error = true;
1802 if( b_flush_request )
1803 DecoderProcessOnFlush( p_dec );
1807 * Destroys a decoder object
1809 * \param p_dec the decoder object
1812 static void DeleteDecoder( decoder_t * p_dec )
1814 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1816 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1817 (char*)&p_dec->fmt_in.i_codec,
1818 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1820 /* Free all packets still in the decoder fifo. */
1821 block_FifoRelease( p_owner->p_fifo );
1824 if( p_owner->p_aout )
1826 /* TODO: REVISIT gap-less audio */
1827 aout_DecFlush( p_owner->p_aout );
1828 aout_DecDelete( p_owner->p_aout );
1829 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1830 if( p_owner->p_input != NULL )
1831 input_SendEventAout( p_owner->p_input );
1833 if( p_owner->p_vout )
1835 /* Hack to make sure all the the pictures are freed by the decoder
1836 * and that the vout is not paused anymore */
1837 vout_Reset( p_owner->p_vout );
1840 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1842 if( p_owner->p_input != NULL )
1843 input_SendEventVout( p_owner->p_input );
1847 if( p_owner->p_sout_input )
1849 sout_InputDelete( p_owner->p_sout_input );
1852 es_format_Clean( &p_owner->fmt );
1854 if( p_dec->fmt_out.i_cat == SPU_ES )
1856 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1859 if( p_owner->p_spu_vout == p_vout )
1860 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1861 vlc_object_release( p_vout );
1865 es_format_Clean( &p_dec->fmt_in );
1866 es_format_Clean( &p_dec->fmt_out );
1867 if( p_dec->p_description )
1868 vlc_meta_Delete( p_dec->p_description );
1869 if( p_owner->p_description )
1870 vlc_meta_Delete( p_owner->p_description );
1872 if( p_owner->p_packetizer )
1874 module_unneed( p_owner->p_packetizer,
1875 p_owner->p_packetizer->p_module );
1876 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1877 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1878 if( p_owner->p_packetizer->p_description )
1879 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1880 vlc_object_release( p_owner->p_packetizer );
1883 vlc_cond_destroy( &p_owner->wait_acknowledge );
1884 vlc_cond_destroy( &p_owner->wait_request );
1885 vlc_mutex_destroy( &p_owner->lock );
1887 vlc_object_release( p_dec );
1892 /*****************************************************************************
1893 * Buffers allocation callbacks for the decoders
1894 *****************************************************************************/
1895 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1897 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1899 vlc_assert_locked( &p_owner->lock );
1901 p_owner->b_fmt_description = true;
1903 /* Move p_description */
1904 if( p_owner->p_description && p_dec->p_description )
1905 vlc_meta_Delete( p_owner->p_description );
1906 p_owner->p_description = p_dec->p_description;
1907 p_dec->p_description = NULL;
1909 static vout_thread_t *aout_request_vout( void *p_private,
1910 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1912 decoder_t *p_dec = p_private;
1913 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1914 input_thread_t *p_input = p_owner->p_input;
1916 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1918 if( p_input != NULL )
1919 input_SendEventVout( p_input );
1924 static int aout_update_format( decoder_t *p_dec )
1926 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1929 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1931 audio_output_t *p_aout = p_owner->p_aout;
1933 /* Parameters changed, restart the aout */
1934 vlc_mutex_lock( &p_owner->lock );
1936 aout_DecDelete( p_owner->p_aout );
1937 p_owner->p_aout = NULL;
1939 vlc_mutex_unlock( &p_owner->lock );
1940 input_resource_PutAout( p_owner->p_resource, p_aout );
1943 if( p_owner->p_aout == NULL )
1945 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1947 audio_sample_format_t format = p_dec->fmt_out.audio;
1948 aout_FormatPrepare( &format );
1950 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1951 if( i_force_dolby &&
1952 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1953 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1955 if( i_force_dolby == 1 )
1957 format.i_original_channels = format.i_original_channels |
1958 AOUT_CHAN_DOLBYSTEREO;
1960 else /* i_force_dolby == 2 */
1962 format.i_original_channels = format.i_original_channels &
1963 ~AOUT_CHAN_DOLBYSTEREO;
1967 aout_request_vout_t request_vout = {
1968 .pf_request_vout = aout_request_vout,
1971 audio_output_t *p_aout;
1973 p_aout = input_resource_GetAout( p_owner->p_resource );
1976 if( aout_DecNew( p_aout, &format,
1977 &p_dec->fmt_out.audio_replay_gain,
1980 input_resource_PutAout( p_owner->p_resource, p_aout );
1985 vlc_mutex_lock( &p_owner->lock );
1987 p_owner->p_aout = p_aout;
1989 es_format_Clean( &p_owner->fmt );
1990 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1991 aout_FormatPrepare( &p_owner->fmt.audio );
1993 DecoderUpdateFormatLocked( p_dec );
1995 if( unlikely(p_owner->b_paused) && p_aout != NULL )
1996 /* fake pause if needed */
1997 aout_DecChangePause( p_aout, true, mdate() );
1999 vlc_mutex_unlock( &p_owner->lock );
2001 if( p_owner->p_input != NULL )
2002 input_SendEventAout( p_owner->p_input );
2004 if( p_aout == NULL )
2006 msg_Err( p_dec, "failed to create audio output" );
2007 p_dec->b_error = true;
2011 p_dec->fmt_out.audio.i_bytes_per_frame =
2012 p_owner->fmt.audio.i_bytes_per_frame;
2013 p_dec->fmt_out.audio.i_frame_length =
2014 p_owner->fmt.audio.i_frame_length;
2019 static int vout_update_format( decoder_t *p_dec )
2021 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2023 if( p_owner->p_vout == NULL
2024 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2025 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2026 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2027 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2028 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2029 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2030 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2031 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2032 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2033 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2035 vout_thread_t *p_vout;
2037 if( !p_dec->fmt_out.video.i_width ||
2038 !p_dec->fmt_out.video.i_height )
2040 /* Can't create a new vout without display size */
2044 video_format_t fmt = p_dec->fmt_out.video;
2045 fmt.i_chroma = p_dec->fmt_out.i_codec;
2047 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2049 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2050 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2052 while( fmt.i_width % dsc->p[i].w.den )
2054 while( fmt.i_height % dsc->p[i].h.den )
2059 if( !fmt.i_visible_width || !fmt.i_visible_height )
2061 if( p_dec->fmt_in.video.i_visible_width &&
2062 p_dec->fmt_in.video.i_visible_height )
2064 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2065 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2066 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2067 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2071 fmt.i_visible_width = fmt.i_width;
2072 fmt.i_visible_height = fmt.i_height;
2078 if( fmt.i_visible_height == 1088 &&
2079 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2081 fmt.i_visible_height = 1080;
2082 if( !(fmt.i_sar_num % 136))
2084 fmt.i_sar_num *= 135;
2085 fmt.i_sar_den *= 136;
2087 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2090 if( !fmt.i_sar_num || !fmt.i_sar_den )
2096 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2097 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2099 vlc_mutex_lock( &p_owner->lock );
2101 p_vout = p_owner->p_vout;
2102 p_owner->p_vout = NULL;
2103 vlc_mutex_unlock( &p_owner->lock );
2106 switch( p_dec->fmt_in.i_codec )
2108 case VLC_CODEC_HEVC:
2109 case VLC_CODEC_H264:
2110 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2115 case VLC_CODEC_VP6F:
2123 p_vout = input_resource_RequestVout( p_owner->p_resource,
2126 p_dec->i_extra_picture_buffers + 1,
2128 vlc_mutex_lock( &p_owner->lock );
2129 p_owner->p_vout = p_vout;
2131 es_format_Clean( &p_owner->fmt );
2132 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2133 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
2135 DecoderUpdateFormatLocked( p_dec );
2137 vlc_mutex_unlock( &p_owner->lock );
2139 if( p_owner->p_input != NULL )
2140 input_SendEventVout( p_owner->p_input );
2141 if( p_vout == NULL )
2143 msg_Err( p_dec, "failed to create video output" );
2144 p_dec->b_error = true;
2151 static picture_t *vout_new_buffer( decoder_t *p_dec )
2153 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2157 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2160 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2164 if( DecoderIsFlushing( p_dec ) )
2168 DecoderSignalWait( p_dec, true );
2170 /* Check the decoder doesn't leak pictures */
2171 vout_FixLeaks( p_owner->p_vout );
2173 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2174 msleep( VOUT_OUTMEM_SLEEP );
2178 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2179 const subpicture_updater_t *p_updater )
2181 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2182 vout_thread_t *p_vout = NULL;
2183 subpicture_t *p_subpic;
2184 int i_attempts = 30;
2186 while( i_attempts-- )
2188 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2191 p_vout = input_resource_HoldVout( p_owner->p_resource );
2195 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2200 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2204 if( p_owner->p_spu_vout != p_vout )
2206 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2207 p_owner->i_spu_order = 0;
2208 p_owner->p_spu_vout = p_vout;
2211 p_subpic = subpicture_New( p_updater );
2214 p_subpic->i_channel = p_owner->i_spu_channel;
2215 p_subpic->i_order = p_owner->i_spu_order++;
2216 p_subpic->b_subtitle = true;
2219 vlc_object_release( p_vout );