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 * );
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;
350 vlc_fifo_Lock( p_owner->p_fifo );
353 /* FIXME: ideally we would check the time amount of data
354 * in the FIFO instead of its size. */
355 /* 400 MiB, i.e. ~ 50mb/s for 60s */
356 if( vlc_fifo_GetBytes( p_owner->p_fifo ) > 400*1024*1024 )
358 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
359 "consumed quickly enough), resetting fifo!" );
360 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
364 if( !p_owner->b_waiting )
365 { /* The FIFO is not consumed when waiting, so pacing would deadlock VLC.
366 * Locking is not necessary as b_waiting is only read, not written by
367 * the decoder thread. */
368 while( vlc_fifo_GetCount( p_owner->p_fifo ) >= 10 )
369 vlc_fifo_WaitCond( p_owner->p_fifo, &p_owner->wait_acknowledge );
372 vlc_fifo_QueueUnlocked( p_owner->p_fifo, p_block );
373 vlc_fifo_Unlock( p_owner->p_fifo );
376 bool input_DecoderIsEmpty( decoder_t * p_dec )
378 decoder_owner_sys_t *p_owner = p_dec->p_owner;
379 assert( !p_owner->b_waiting );
381 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
385 vlc_mutex_lock( &p_owner->lock );
386 /* TODO subtitles support */
387 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
388 b_empty = vout_IsEmpty( p_owner->p_vout );
389 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
390 b_empty = aout_DecIsEmpty( p_owner->p_aout );
391 vlc_mutex_unlock( &p_owner->lock );
396 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
398 decoder_owner_sys_t *p_owner = p_dec->p_owner;
401 vlc_mutex_lock( &p_owner->lock );
402 for( i = 0; i < 4; i++ )
403 pb_present[i] = p_owner->cc.pb_present[i];
404 vlc_mutex_unlock( &p_owner->lock );
406 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
408 decoder_owner_sys_t *p_owner = p_dec->p_owner;
410 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
412 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
417 static const vlc_fourcc_t fcc[4] = {
418 VLC_FOURCC('c', 'c', '1', ' '),
419 VLC_FOURCC('c', 'c', '2', ' '),
420 VLC_FOURCC('c', 'c', '3', ' '),
421 VLC_FOURCC('c', 'c', '4', ' '),
426 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
427 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
428 p_dec->p_owner->p_clock, p_owner->p_sout );
431 msg_Err( p_dec, "could not create decoder" );
432 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
433 _("VLC could not open the decoder module.") );
436 else if( !p_cc->p_module )
438 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
439 input_DecoderDelete(p_cc);
442 p_cc->p_owner->p_clock = p_owner->p_clock;
444 vlc_mutex_lock( &p_owner->lock );
445 p_owner->cc.pp_decoder[i_channel] = p_cc;
446 vlc_mutex_unlock( &p_owner->lock );
452 vlc_mutex_lock( &p_owner->lock );
453 p_cc = p_owner->cc.pp_decoder[i_channel];
454 p_owner->cc.pp_decoder[i_channel] = NULL;
455 vlc_mutex_unlock( &p_owner->lock );
458 input_DecoderDelete(p_cc);
462 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
464 decoder_owner_sys_t *p_owner = p_dec->p_owner;
467 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
470 vlc_mutex_lock( &p_owner->lock );
471 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
472 vlc_mutex_unlock( &p_owner->lock );
476 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
478 decoder_owner_sys_t *p_owner = p_dec->p_owner;
480 vlc_mutex_lock( &p_owner->lock );
481 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
482 * while the input is paused (e.g. add sub file), then b_paused is
483 * (incorrectly) false. */
484 if( likely(p_owner->b_paused != b_paused) ) {
485 p_owner->b_paused = b_paused;
486 p_owner->pause.i_date = i_date;
487 p_owner->pause.i_ignore = 0;
488 vlc_cond_signal( &p_owner->wait_request );
490 /* XXX only audio and video output have to be paused.
491 * - for sout it is useless
492 * - for subs, it is done by the vout
494 if( p_dec->fmt_out.i_cat == AUDIO_ES )
496 if( p_owner->p_aout )
497 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
499 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
501 if( p_owner->p_vout )
502 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
505 vlc_mutex_unlock( &p_owner->lock );
508 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
510 decoder_owner_sys_t *p_owner = p_dec->p_owner;
512 vlc_mutex_lock( &p_owner->lock );
513 p_owner->i_ts_delay = i_delay;
514 vlc_mutex_unlock( &p_owner->lock );
518 * Requests that the decoder immediately discard all pending buffers.
519 * This is useful at end of stream, when seeking or when deselecting a stream.
521 void input_DecoderFlush( decoder_t *p_dec )
523 decoder_owner_sys_t *p_owner = p_dec->p_owner;
525 vlc_mutex_lock( &p_owner->lock );
526 DecoderFlush( p_dec );
527 vlc_mutex_unlock( &p_owner->lock );
530 void input_DecoderStartWait( decoder_t *p_dec )
532 decoder_owner_sys_t *p_owner = p_dec->p_owner;
534 assert( !p_owner->b_waiting );
536 input_DecoderFlush( p_dec );
538 vlc_mutex_lock( &p_owner->lock );
539 p_owner->b_first = true;
540 p_owner->b_has_data = false;
541 p_owner->b_waiting = true;
542 vlc_cond_signal( &p_owner->wait_request );
543 vlc_mutex_unlock( &p_owner->lock );
546 void input_DecoderStopWait( decoder_t *p_dec )
548 decoder_owner_sys_t *p_owner = p_dec->p_owner;
550 assert( p_owner->b_waiting );
552 vlc_mutex_lock( &p_owner->lock );
553 p_owner->b_waiting = false;
554 vlc_cond_signal( &p_owner->wait_request );
555 vlc_mutex_unlock( &p_owner->lock );
558 void input_DecoderWait( decoder_t *p_dec )
560 decoder_owner_sys_t *p_owner = p_dec->p_owner;
562 assert( p_owner->b_waiting );
564 vlc_mutex_lock( &p_owner->lock );
565 while( !p_owner->b_has_data )
567 vlc_fifo_Lock( p_owner->p_fifo );
568 p_owner->b_woken = true;
569 vlc_fifo_Signal( p_owner->p_fifo );
570 vlc_fifo_Unlock( p_owner->p_fifo );
571 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
573 vlc_mutex_unlock( &p_owner->lock );
576 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
578 decoder_owner_sys_t *p_owner = p_dec->p_owner;
582 vlc_mutex_lock( &p_owner->lock );
583 if( p_dec->fmt_out.i_cat == VIDEO_ES )
585 if( p_owner->b_paused && p_owner->p_vout )
587 vout_NextPicture( p_owner->p_vout, pi_duration );
588 p_owner->pause.i_ignore++;
589 vlc_cond_signal( &p_owner->wait_request );
594 /* TODO subtitle should not be flushed */
595 p_owner->b_waiting = false;
596 DecoderFlush( p_dec );
598 vlc_mutex_unlock( &p_owner->lock );
601 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
603 decoder_owner_sys_t *p_owner = p_dec->p_owner;
606 vlc_mutex_lock( &p_owner->lock );
607 b_changed = p_owner->b_fmt_description;
611 es_format_Copy( p_fmt, &p_owner->fmt );
616 if( p_owner->p_description )
618 *pp_meta = vlc_meta_New();
620 vlc_meta_Merge( *pp_meta, p_owner->p_description );
623 p_owner->b_fmt_description = false;
625 vlc_mutex_unlock( &p_owner->lock );
629 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
631 decoder_owner_sys_t *p_owner = p_dec->p_owner;
633 return block_FifoSize( p_owner->p_fifo );
636 void input_DecoderGetObjects( decoder_t *p_dec,
637 vout_thread_t **pp_vout, audio_output_t **pp_aout )
639 decoder_owner_sys_t *p_owner = p_dec->p_owner;
641 vlc_mutex_lock( &p_owner->lock );
643 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
645 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
646 vlc_mutex_unlock( &p_owner->lock );
649 /*****************************************************************************
651 *****************************************************************************/
652 static int DecoderGetInputAttachments( decoder_t *p_dec,
653 input_attachment_t ***ppp_attachment,
656 input_thread_t *p_input = p_dec->p_owner->p_input;
658 if( unlikely(p_input == NULL) )
660 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
661 ppp_attachment, pi_attachment );
663 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
665 decoder_owner_sys_t *p_owner = p_dec->p_owner;
667 vlc_mutex_lock( &p_owner->lock );
668 if( p_owner->b_waiting || p_owner->b_paused )
669 i_ts = VLC_TS_INVALID;
670 vlc_mutex_unlock( &p_owner->lock );
672 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
675 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
676 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
677 return VLC_TS_INVALID;
682 static int DecoderGetDisplayRate( decoder_t *p_dec )
684 decoder_owner_sys_t *p_owner = p_dec->p_owner;
686 if( !p_owner->p_clock )
687 return INPUT_RATE_DEFAULT;
688 return input_clock_GetRate( p_owner->p_clock );
692 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
694 if (codec != VLC_FOURCC('u','n','d','f')) {
695 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
697 desc = N_("No description for this codec");
698 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
699 dialog_Fatal( p_dec, _("Codec not supported"),
700 _("VLC could not decode the format \"%4.4s\" (%s)"),
701 (char*)&codec, desc );
703 msg_Err( p_dec, "could not identify codec" );
704 dialog_Fatal( p_dec, _("Unidentified codec"),
705 _("VLC could not identify the audio or video codec" ) );
711 * Create a decoder object
713 * \param p_input the input thread
714 * \param p_es the es descriptor
715 * \param b_packetizer instead of a decoder
716 * \return the decoder object
718 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
719 input_thread_t *p_input,
720 const es_format_t *fmt, bool b_packetizer,
721 input_resource_t *p_resource,
722 sout_instance_t *p_sout )
725 decoder_owner_sys_t *p_owner;
726 es_format_t null_es_format;
728 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
732 p_dec->pf_decode_audio = NULL;
733 p_dec->pf_decode_video = NULL;
734 p_dec->pf_decode_sub = NULL;
735 p_dec->pf_get_cc = NULL;
736 p_dec->pf_packetize = NULL;
738 /* Initialize the decoder */
739 p_dec->p_module = NULL;
741 memset( &null_es_format, 0, sizeof(es_format_t) );
742 es_format_Copy( &p_dec->fmt_in, fmt );
743 es_format_Copy( &p_dec->fmt_out, &null_es_format );
745 p_dec->p_description = NULL;
747 /* Allocate our private structure for the decoder */
748 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
749 if( unlikely(p_owner == NULL) )
751 vlc_object_release( p_dec );
754 p_owner->i_preroll_end = VLC_TS_INVALID;
755 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
756 p_owner->p_input = p_input;
757 p_owner->p_resource = p_resource;
758 p_owner->p_aout = NULL;
759 p_owner->p_vout = NULL;
760 p_owner->p_spu_vout = NULL;
761 p_owner->i_spu_channel = 0;
762 p_owner->i_spu_order = 0;
763 p_owner->p_sout = p_sout;
764 p_owner->p_sout_input = NULL;
765 p_owner->p_packetizer = NULL;
766 p_owner->b_packetizer = b_packetizer;
767 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
770 p_owner->b_woken = false;
771 p_owner->p_fifo = block_FifoNew();
772 if( unlikely(p_owner->p_fifo == NULL) )
775 vlc_object_release( p_dec );
779 /* Set buffers allocation callbacks for the decoders */
780 p_dec->pf_aout_format_update = aout_update_format;
781 p_dec->pf_vout_format_update = vout_update_format;
782 p_dec->pf_vout_buffer_new = vout_new_buffer;
783 p_dec->pf_spu_buffer_new = spu_new_buffer;
785 p_dec->pf_get_attachments = DecoderGetInputAttachments;
786 p_dec->pf_get_display_date = DecoderGetDisplayDate;
787 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
789 /* Find a suitable decoder/packetizer module */
791 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
793 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
795 /* Check if decoder requires already packetized data */
797 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
799 p_owner->p_packetizer =
800 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
801 if( p_owner->p_packetizer )
803 es_format_Copy( &p_owner->p_packetizer->fmt_in,
806 es_format_Copy( &p_owner->p_packetizer->fmt_out,
809 p_owner->p_packetizer->p_module =
810 module_need( p_owner->p_packetizer,
811 "packetizer", "$packetizer", false );
813 if( !p_owner->p_packetizer->p_module )
815 es_format_Clean( &p_owner->p_packetizer->fmt_in );
816 vlc_object_release( p_owner->p_packetizer );
817 p_owner->p_packetizer = NULL;
822 /* Copy ourself the input replay gain */
823 if( fmt->i_cat == AUDIO_ES )
825 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
827 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
829 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
830 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
832 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
834 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
835 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
841 vlc_mutex_init( &p_owner->lock );
842 vlc_cond_init( &p_owner->wait_request );
843 vlc_cond_init( &p_owner->wait_acknowledge );
845 p_owner->b_fmt_description = false;
846 p_owner->p_description = NULL;
848 p_owner->b_exit = false;
850 p_owner->b_paused = false;
851 p_owner->pause.i_date = VLC_TS_INVALID;
852 p_owner->pause.i_ignore = 0;
854 p_owner->b_waiting = false;
855 p_owner->b_first = true;
856 p_owner->b_has_data = false;
858 p_owner->b_flushing = false;
861 p_owner->cc.b_supported = false;
864 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
865 p_owner->cc.b_supported = true;
866 if( p_dec->pf_get_cc )
867 p_owner->cc.b_supported = true;
870 for( unsigned i = 0; i < 4; i++ )
872 p_owner->cc.pb_present[i] = false;
873 p_owner->cc.pp_decoder[i] = NULL;
875 p_owner->i_ts_delay = 0;
880 * The decoding main loop
882 * \param p_dec the decoder
884 static void *DecoderThread( void *p_data )
886 decoder_t *p_dec = (decoder_t *)p_data;
887 decoder_owner_sys_t *p_owner = p_dec->p_owner;
889 /* The decoder's main loop */
894 vlc_fifo_Lock( p_owner->p_fifo );
895 vlc_fifo_CleanupPush( p_owner->p_fifo );
897 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
899 if( p_owner->b_woken )
901 vlc_fifo_Wait( p_owner->p_fifo );
902 /* Make sure there is no cancellation point other than this one^^.
903 * If you need one, be sure to push cleanup of p_block. */
906 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
907 if( p_block != NULL )
908 vlc_cond_signal( &p_owner->wait_acknowledge );
910 p_owner->b_woken = false;
913 if( p_block == NULL || p_block->i_flags & BLOCK_FLAG_CORE_EOS )
914 DecoderSignalWait( p_dec );
918 int canc = vlc_savecancel();
920 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
922 /* calling DecoderProcess() with NULL block will make
923 * decoders/packetizers flush their buffers */
924 block_Release( p_block );
928 DecoderProcess( p_dec, p_block );
930 vlc_restorecancel( canc );
936 static block_t *DecoderBlockFlushNew()
938 block_t *p_null = block_Alloc( 128 );
942 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
943 BLOCK_FLAG_CORRUPTED |
944 BLOCK_FLAG_CORE_FLUSH;
945 memset( p_null->p_buffer, 0, p_null->i_buffer );
950 static void DecoderFlush( decoder_t *p_dec )
952 decoder_owner_sys_t *p_owner = p_dec->p_owner;
954 vlc_assert_locked( &p_owner->lock );
957 block_FifoEmpty( p_owner->p_fifo );
959 /* Monitor for flush end */
960 p_owner->b_flushing = true;
961 vlc_cond_signal( &p_owner->wait_request );
963 /* Send a special block */
964 block_t *p_null = DecoderBlockFlushNew();
967 input_DecoderDecode( p_dec, p_null, false );
970 while( p_owner->b_flushing )
971 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
974 static void DecoderSignalWait( decoder_t *p_dec )
976 decoder_owner_sys_t *p_owner = p_dec->p_owner;
978 vlc_mutex_lock( &p_owner->lock );
980 if( p_owner->b_waiting )
982 p_owner->b_has_data = true;
983 vlc_cond_signal( &p_owner->wait_acknowledge );
986 vlc_mutex_unlock( &p_owner->lock );
989 static bool DecoderIsFlushing( decoder_t *p_dec )
991 decoder_owner_sys_t *p_owner = p_dec->p_owner;
994 vlc_mutex_lock( &p_owner->lock );
996 b_flushing = p_owner->b_flushing;
998 vlc_mutex_unlock( &p_owner->lock );
1003 static bool DecoderWaitUnblock( decoder_t *p_dec )
1005 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1007 vlc_assert_locked( &p_owner->lock );
1011 if( p_owner->b_flushing )
1013 if( p_owner->b_paused )
1015 if( p_owner->b_waiting && !p_owner->b_has_data )
1017 if( p_owner->pause.i_ignore > 0 )
1019 p_owner->pause.i_ignore--;
1025 if( !p_owner->b_waiting || !p_owner->b_has_data )
1028 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1031 return p_owner->b_flushing;
1034 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1036 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1037 *pi_preroll = INT64_MAX;
1038 else if( p->i_dts > VLC_TS_INVALID )
1039 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1040 else if( p->i_pts > VLC_TS_INVALID )
1041 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1044 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1045 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1047 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1048 input_clock_t *p_clock = p_owner->p_clock;
1050 vlc_assert_locked( &p_owner->lock );
1052 const mtime_t i_es_delay = p_owner->i_ts_delay;
1057 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1060 if( *pi_ts0 > VLC_TS_INVALID )
1062 *pi_ts0 += i_es_delay;
1063 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1064 *pi_ts1 += i_es_delay;
1065 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1066 if( pi_ts1 != NULL )
1067 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1068 ", %"PRId64"", *pi_ts0, *pi_ts1);
1070 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1071 *pi_ts0 = VLC_TS_INVALID;
1076 i_rate = input_clock_GetRate( p_clock );
1079 /* Do not create ephemere data because of rounding errors */
1080 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1084 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1085 / INPUT_RATE_DEFAULT;
1091 static bool DecoderIsExitRequested( decoder_t *p_dec )
1093 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1095 vlc_mutex_lock( &p_owner->lock );
1096 bool b_exit = p_owner->b_exit;
1097 vlc_mutex_unlock( &p_owner->lock );
1103 * If *pb_reject, it does nothing, otherwise it waits for the given
1104 * deadline or a flush request (in which case it set *pi_reject to true.
1106 static void DecoderWaitDate( decoder_t *p_dec,
1107 bool *pb_reject, mtime_t i_deadline )
1109 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1111 vlc_assert_locked( &p_owner->lock );
1113 if( *pb_reject || i_deadline < 0 )
1118 if( p_owner->b_flushing || p_owner->b_exit )
1124 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1125 i_deadline ) == 0 );
1128 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1129 int *pi_played_sum, int *pi_lost_sum )
1131 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1132 audio_output_t *p_aout = p_owner->p_aout;
1135 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1137 msg_Warn( p_dec, "non-dated audio buffer received" );
1139 block_Release( p_audio );
1144 vlc_mutex_lock( &p_owner->lock );
1146 if( p_audio && p_owner->b_waiting )
1148 p_owner->b_has_data = true;
1149 vlc_cond_signal( &p_owner->wait_acknowledge );
1156 bool b_reject = DecoderWaitUnblock( p_dec );
1158 b_paused = p_owner->b_paused;
1164 int i_rate = INPUT_RATE_DEFAULT;
1166 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1167 &i_rate, AOUT_MAX_ADVANCE_TIME );
1169 if( p_audio->i_pts <= VLC_TS_INVALID
1170 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1171 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1174 DecoderWaitDate( p_dec, &b_reject,
1175 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1177 if( unlikely(p_owner->b_paused != b_paused) )
1178 continue; /* race with input thread? retry... */
1179 if( p_aout == NULL )
1184 assert( !p_owner->b_paused );
1185 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1186 *pi_played_sum += 1;
1187 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1191 msg_Dbg( p_dec, "discarded audio buffer" );
1193 block_Release( p_audio );
1198 vlc_mutex_unlock( &p_owner->lock );
1201 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1203 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1204 block_t *p_aout_buf;
1210 /* Play a NULL block to output buffered frames */
1211 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1213 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1215 if( DecoderIsExitRequested( p_dec ) )
1217 /* It prevent freezing VLC in case of broken decoder */
1218 block_Release( p_aout_buf );
1220 block_Release( p_block );
1225 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1226 p_aout_buf->i_pts < p_owner->i_preroll_end )
1228 block_Release( p_aout_buf );
1232 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1234 msg_Dbg( p_dec, "End of audio preroll" );
1235 if( p_owner->p_aout )
1236 aout_DecFlush( p_owner->p_aout );
1238 p_owner->i_preroll_end = VLC_TS_INVALID;
1241 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1244 /* Update ugly stat */
1245 input_thread_t *p_input = p_owner->p_input;
1247 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1249 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1250 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1251 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1252 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1253 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1256 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1258 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1261 bool b_processed = false;
1265 assert( p_dec_cc->pf_get_cc != NULL );
1267 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1268 if( !p_owner->cc.b_supported )
1271 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1275 vlc_mutex_lock( &p_owner->lock );
1276 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1278 p_owner->cc.pb_present[i] |= pb_present[i];
1279 if( p_owner->cc.pp_decoder[i] )
1283 for( i = 0; i < 4; i++ )
1285 if( !p_owner->cc.pp_decoder[i] )
1288 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1289 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1294 vlc_mutex_unlock( &p_owner->lock );
1297 block_Release( p_cc );
1300 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1301 int *pi_played_sum, int *pi_lost_sum )
1303 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1304 vout_thread_t *p_vout = p_owner->p_vout;
1306 if( p_picture->date <= VLC_TS_INVALID )
1308 msg_Warn( p_dec, "non-dated video buffer received" );
1310 picture_Release( p_picture );
1315 vlc_mutex_lock( &p_owner->lock );
1317 if( p_owner->b_waiting && !p_owner->b_first )
1319 p_owner->b_has_data = true;
1320 vlc_cond_signal( &p_owner->wait_acknowledge );
1322 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1324 bool b_reject = DecoderWaitUnblock( p_dec );
1326 if( p_owner->b_waiting )
1328 assert( p_owner->b_first );
1329 msg_Dbg( p_dec, "Received first picture" );
1330 p_owner->b_first = false;
1331 p_picture->b_force = true;
1334 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1335 int i_rate = INPUT_RATE_DEFAULT;
1336 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1337 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1339 vlc_mutex_unlock( &p_owner->lock );
1342 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1347 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1349 /* Be sure to not display old picture after our own */
1350 vout_Flush( p_vout, p_picture->date );
1351 p_owner->i_last_rate = i_rate;
1353 vout_PutPicture( p_vout, p_picture );
1358 msg_Warn( p_dec, "early picture skipped" );
1360 msg_Warn( p_dec, "non-dated video buffer received" );
1363 picture_Release( p_picture );
1367 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1369 *pi_played_sum += i_tmp_display;
1370 *pi_lost_sum += i_tmp_lost;
1373 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1375 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1379 int i_displayed = 0;
1381 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1383 vout_thread_t *p_vout = p_owner->p_vout;
1384 if( DecoderIsExitRequested( p_dec ) )
1386 /* It prevent freezing VLC in case of broken decoder */
1387 picture_Release( p_pic );
1389 block_Release( p_block );
1395 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1397 picture_Release( p_pic );
1401 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1403 msg_Dbg( p_dec, "End of video preroll" );
1405 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1407 p_owner->i_preroll_end = VLC_TS_INVALID;
1410 if( p_dec->pf_get_cc &&
1411 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1412 DecoderGetCc( p_dec, p_dec );
1414 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1417 /* Update ugly stat */
1418 input_thread_t *p_input = p_owner->p_input;
1420 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1422 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1423 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1424 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1425 stats_Update( p_input->p->counters.p_displayed_pictures,
1427 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1431 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1433 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1434 vout_thread_t *p_vout = p_owner->p_spu_vout;
1437 if( p_subpic->i_start <= VLC_TS_INVALID )
1439 msg_Warn( p_dec, "non-dated spu buffer received" );
1440 subpicture_Delete( p_subpic );
1445 vlc_mutex_lock( &p_owner->lock );
1447 if( p_owner->b_waiting )
1449 p_owner->b_has_data = true;
1450 vlc_cond_signal( &p_owner->wait_acknowledge );
1453 bool b_reject = DecoderWaitUnblock( p_dec );
1455 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1458 if( p_subpic->i_start <= VLC_TS_INVALID )
1461 DecoderWaitDate( p_dec, &b_reject,
1462 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1463 vlc_mutex_unlock( &p_owner->lock );
1466 vout_PutSubpicture( p_vout, p_subpic );
1468 subpicture_Delete( p_subpic );
1472 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1474 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1476 assert( p_owner->p_clock );
1477 assert( !p_sout_block->p_next );
1479 vlc_mutex_lock( &p_owner->lock );
1481 if( p_owner->b_waiting )
1483 p_owner->b_has_data = true;
1484 vlc_cond_signal( &p_owner->wait_acknowledge );
1487 bool b_reject = DecoderWaitUnblock( p_dec );
1489 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1490 &p_sout_block->i_length, NULL, INT64_MAX );
1492 vlc_mutex_unlock( &p_owner->lock );
1496 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1497 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1501 block_Release( p_sout_block );
1502 return VLC_EGENERIC;
1508 /* This function process a block for sout
1510 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1512 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1513 block_t *p_sout_block;
1515 while( ( p_sout_block =
1516 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1518 if( p_owner->p_sout_input == NULL )
1520 assert( !p_owner->b_fmt_description ); // no need for owner lock
1521 es_format_Clean( &p_owner->fmt );
1522 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1524 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1525 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1526 if( p_dec->fmt_in.psz_language )
1528 free( p_owner->fmt.psz_language );
1529 p_owner->fmt.psz_language =
1530 strdup( p_dec->fmt_in.psz_language );
1533 p_owner->p_sout_input =
1534 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1536 if( p_owner->p_sout_input == NULL )
1538 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1539 (char *)&p_owner->fmt.i_codec );
1540 p_dec->b_error = true;
1542 block_ChainRelease(p_sout_block);
1547 while( p_sout_block )
1549 block_t *p_next = p_sout_block->p_next;
1551 p_sout_block->p_next = NULL;
1553 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1555 msg_Err( p_dec, "cannot continue streaming due to errors" );
1557 p_dec->b_error = true;
1560 block_ChainRelease( p_next );
1564 p_sout_block = p_next;
1570 /* This function process a video block
1572 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1574 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1576 if( p_owner->p_packetizer )
1578 block_t *p_packetized_block;
1579 decoder_t *p_packetizer = p_owner->p_packetizer;
1581 while( (p_packetized_block =
1582 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1584 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1586 es_format_Clean( &p_dec->fmt_in );
1587 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1590 /* If the packetizer provides aspect ratio information, pass it
1591 * to the decoder as a hint if the decoder itself can't provide
1592 * it. Copy it regardless of the current value of the decoder input
1593 * format aspect ratio, to properly propagate changes in aspect
1595 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1596 p_packetizer->fmt_out.video.i_sar_den > 0)
1598 p_dec->fmt_in.video.i_sar_num =
1599 p_packetizer->fmt_out.video.i_sar_num;
1600 p_dec->fmt_in.video.i_sar_den=
1601 p_packetizer->fmt_out.video.i_sar_den;
1604 if( p_packetizer->pf_get_cc )
1605 DecoderGetCc( p_dec, p_packetizer );
1607 while( p_packetized_block )
1609 block_t *p_next = p_packetized_block->p_next;
1610 p_packetized_block->p_next = NULL;
1612 DecoderDecodeVideo( p_dec, p_packetized_block );
1614 p_packetized_block = p_next;
1617 /* The packetizer does not output a block that tell the decoder to flush
1621 block_t *p_null = DecoderBlockFlushNew();
1623 DecoderDecodeVideo( p_dec, p_null );
1628 DecoderDecodeVideo( p_dec, p_block );
1631 if( b_flush && p_owner->p_vout )
1632 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1635 /* This function process a audio block
1637 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1639 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1641 if( p_owner->p_packetizer )
1643 block_t *p_packetized_block;
1644 decoder_t *p_packetizer = p_owner->p_packetizer;
1646 while( (p_packetized_block =
1647 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1649 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1651 es_format_Clean( &p_dec->fmt_in );
1652 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1655 while( p_packetized_block )
1657 block_t *p_next = p_packetized_block->p_next;
1658 p_packetized_block->p_next = NULL;
1660 DecoderDecodeAudio( p_dec, p_packetized_block );
1662 p_packetized_block = p_next;
1665 /* The packetizer does not output a block that tell the decoder to flush
1669 block_t *p_null = DecoderBlockFlushNew();
1671 DecoderDecodeAudio( p_dec, p_null );
1676 DecoderDecodeAudio( p_dec, p_block );
1679 if( b_flush && p_owner->p_aout )
1680 aout_DecFlush( p_owner->p_aout );
1683 /* This function process a subtitle block
1685 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1687 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1689 input_thread_t *p_input = p_owner->p_input;
1690 vout_thread_t *p_vout;
1691 subpicture_t *p_spu;
1693 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1695 if( p_input != NULL )
1697 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1698 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1699 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1702 p_vout = input_resource_HoldVout( p_owner->p_resource );
1703 if( p_vout && p_owner->p_spu_vout == p_vout )
1705 /* Preroll does not work very well with subtitle */
1706 if( p_spu->i_start > VLC_TS_INVALID &&
1707 p_spu->i_start < p_owner->i_preroll_end &&
1708 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1710 subpicture_Delete( p_spu );
1714 DecoderPlaySpu( p_dec, p_spu );
1719 subpicture_Delete( p_spu );
1722 vlc_object_release( p_vout );
1725 if( b_flush && p_owner->p_spu_vout )
1727 p_vout = input_resource_HoldVout( p_owner->p_resource );
1729 if( p_vout && p_owner->p_spu_vout == p_vout )
1730 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1733 vlc_object_release( p_vout );
1738 static void DecoderProcessOnFlush( decoder_t *p_dec )
1740 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1742 vlc_mutex_lock( &p_owner->lock );
1744 if( p_owner->b_flushing )
1746 p_owner->b_flushing = false;
1747 vlc_cond_signal( &p_owner->wait_acknowledge );
1749 vlc_mutex_unlock( &p_owner->lock );
1755 * \param p_dec the decoder object
1756 * \param p_block the block to decode
1757 * \return VLC_SUCCESS or an error code
1759 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1761 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1762 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1764 if( p_dec->b_error )
1767 block_Release( p_block );
1771 if( p_block && p_block->i_buffer <= 0 )
1773 assert( !b_flush_request );
1774 block_Release( p_block );
1779 if( p_owner->b_packetizer )
1782 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1784 DecoderProcessSout( p_dec, p_block );
1789 bool b_flush = false;
1793 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1794 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1796 b_flush = !b_flushing && b_flush_request;
1798 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1801 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1803 DecoderProcessAudio( p_dec, p_block, b_flush );
1805 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1807 DecoderProcessVideo( p_dec, p_block, b_flush );
1809 else if( p_dec->fmt_out.i_cat == SPU_ES )
1811 DecoderProcessSpu( p_dec, p_block, b_flush );
1815 msg_Err( p_dec, "unknown ES format" );
1816 p_dec->b_error = true;
1822 if( b_flush_request )
1823 DecoderProcessOnFlush( p_dec );
1827 * Destroys a decoder object
1829 * \param p_dec the decoder object
1832 static void DeleteDecoder( decoder_t * p_dec )
1834 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1836 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1837 (char*)&p_dec->fmt_in.i_codec,
1838 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1840 /* Free all packets still in the decoder fifo. */
1841 block_FifoRelease( p_owner->p_fifo );
1844 if( p_owner->p_aout )
1846 /* TODO: REVISIT gap-less audio */
1847 aout_DecFlush( p_owner->p_aout );
1848 aout_DecDelete( p_owner->p_aout );
1849 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1850 if( p_owner->p_input != NULL )
1851 input_SendEventAout( p_owner->p_input );
1853 if( p_owner->p_vout )
1855 /* Hack to make sure all the the pictures are freed by the decoder
1856 * and that the vout is not paused anymore */
1857 vout_Reset( p_owner->p_vout );
1860 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1862 if( p_owner->p_input != NULL )
1863 input_SendEventVout( p_owner->p_input );
1867 if( p_owner->p_sout_input )
1869 sout_InputDelete( p_owner->p_sout_input );
1872 es_format_Clean( &p_owner->fmt );
1874 if( p_dec->fmt_out.i_cat == SPU_ES )
1876 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1879 if( p_owner->p_spu_vout == p_vout )
1880 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1881 vlc_object_release( p_vout );
1885 es_format_Clean( &p_dec->fmt_in );
1886 es_format_Clean( &p_dec->fmt_out );
1887 if( p_dec->p_description )
1888 vlc_meta_Delete( p_dec->p_description );
1889 if( p_owner->p_description )
1890 vlc_meta_Delete( p_owner->p_description );
1892 if( p_owner->p_packetizer )
1894 module_unneed( p_owner->p_packetizer,
1895 p_owner->p_packetizer->p_module );
1896 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1897 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1898 if( p_owner->p_packetizer->p_description )
1899 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1900 vlc_object_release( p_owner->p_packetizer );
1903 vlc_cond_destroy( &p_owner->wait_acknowledge );
1904 vlc_cond_destroy( &p_owner->wait_request );
1905 vlc_mutex_destroy( &p_owner->lock );
1907 vlc_object_release( p_dec );
1912 /*****************************************************************************
1913 * Buffers allocation callbacks for the decoders
1914 *****************************************************************************/
1915 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1917 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1919 vlc_assert_locked( &p_owner->lock );
1921 p_owner->b_fmt_description = true;
1923 /* Move p_description */
1924 if( p_owner->p_description && p_dec->p_description )
1925 vlc_meta_Delete( p_owner->p_description );
1926 p_owner->p_description = p_dec->p_description;
1927 p_dec->p_description = NULL;
1929 static vout_thread_t *aout_request_vout( void *p_private,
1930 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1932 decoder_t *p_dec = p_private;
1933 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1934 input_thread_t *p_input = p_owner->p_input;
1936 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1938 if( p_input != NULL )
1939 input_SendEventVout( p_input );
1944 static int aout_update_format( decoder_t *p_dec )
1946 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1949 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1951 audio_output_t *p_aout = p_owner->p_aout;
1953 /* Parameters changed, restart the aout */
1954 vlc_mutex_lock( &p_owner->lock );
1956 aout_DecDelete( p_owner->p_aout );
1957 p_owner->p_aout = NULL;
1959 vlc_mutex_unlock( &p_owner->lock );
1960 input_resource_PutAout( p_owner->p_resource, p_aout );
1963 if( p_owner->p_aout == NULL )
1965 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1967 audio_sample_format_t format = p_dec->fmt_out.audio;
1968 aout_FormatPrepare( &format );
1970 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1971 if( i_force_dolby &&
1972 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1973 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1975 if( i_force_dolby == 1 )
1977 format.i_original_channels = format.i_original_channels |
1978 AOUT_CHAN_DOLBYSTEREO;
1980 else /* i_force_dolby == 2 */
1982 format.i_original_channels = format.i_original_channels &
1983 ~AOUT_CHAN_DOLBYSTEREO;
1987 aout_request_vout_t request_vout = {
1988 .pf_request_vout = aout_request_vout,
1991 audio_output_t *p_aout;
1993 p_aout = input_resource_GetAout( p_owner->p_resource );
1996 if( aout_DecNew( p_aout, &format,
1997 &p_dec->fmt_out.audio_replay_gain,
2000 input_resource_PutAout( p_owner->p_resource, p_aout );
2005 vlc_mutex_lock( &p_owner->lock );
2007 p_owner->p_aout = p_aout;
2009 es_format_Clean( &p_owner->fmt );
2010 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2011 aout_FormatPrepare( &p_owner->fmt.audio );
2013 DecoderUpdateFormatLocked( p_dec );
2015 if( unlikely(p_owner->b_paused) && p_aout != NULL )
2016 /* fake pause if needed */
2017 aout_DecChangePause( p_aout, true, mdate() );
2019 vlc_mutex_unlock( &p_owner->lock );
2021 if( p_owner->p_input != NULL )
2022 input_SendEventAout( p_owner->p_input );
2024 if( p_aout == NULL )
2026 msg_Err( p_dec, "failed to create audio output" );
2027 p_dec->b_error = true;
2031 p_dec->fmt_out.audio.i_bytes_per_frame =
2032 p_owner->fmt.audio.i_bytes_per_frame;
2033 p_dec->fmt_out.audio.i_frame_length =
2034 p_owner->fmt.audio.i_frame_length;
2039 static int vout_update_format( decoder_t *p_dec )
2041 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2043 if( p_owner->p_vout == NULL
2044 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2045 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2046 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2047 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2048 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2049 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2050 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2051 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2052 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2053 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2055 vout_thread_t *p_vout;
2057 if( !p_dec->fmt_out.video.i_width ||
2058 !p_dec->fmt_out.video.i_height )
2060 /* Can't create a new vout without display size */
2064 video_format_t fmt = p_dec->fmt_out.video;
2065 fmt.i_chroma = p_dec->fmt_out.i_codec;
2067 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2069 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2070 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2072 while( fmt.i_width % dsc->p[i].w.den )
2074 while( fmt.i_height % dsc->p[i].h.den )
2079 if( !fmt.i_visible_width || !fmt.i_visible_height )
2081 if( p_dec->fmt_in.video.i_visible_width &&
2082 p_dec->fmt_in.video.i_visible_height )
2084 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2085 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2086 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2087 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2091 fmt.i_visible_width = fmt.i_width;
2092 fmt.i_visible_height = fmt.i_height;
2098 if( fmt.i_visible_height == 1088 &&
2099 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2101 fmt.i_visible_height = 1080;
2102 if( !(fmt.i_sar_num % 136))
2104 fmt.i_sar_num *= 135;
2105 fmt.i_sar_den *= 136;
2107 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2110 if( !fmt.i_sar_num || !fmt.i_sar_den )
2116 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2117 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2119 vlc_mutex_lock( &p_owner->lock );
2121 p_vout = p_owner->p_vout;
2122 p_owner->p_vout = NULL;
2123 vlc_mutex_unlock( &p_owner->lock );
2126 switch( p_dec->fmt_in.i_codec )
2128 case VLC_CODEC_HEVC:
2129 case VLC_CODEC_H264:
2130 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2135 case VLC_CODEC_VP6F:
2143 p_vout = input_resource_RequestVout( p_owner->p_resource,
2146 p_dec->i_extra_picture_buffers + 1,
2148 vlc_mutex_lock( &p_owner->lock );
2149 p_owner->p_vout = p_vout;
2151 es_format_Clean( &p_owner->fmt );
2152 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2153 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
2155 DecoderUpdateFormatLocked( p_dec );
2157 vlc_mutex_unlock( &p_owner->lock );
2159 if( p_owner->p_input != NULL )
2160 input_SendEventVout( p_owner->p_input );
2161 if( p_vout == NULL )
2163 msg_Err( p_dec, "failed to create video output" );
2164 p_dec->b_error = true;
2171 static picture_t *vout_new_buffer( decoder_t *p_dec )
2173 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2177 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2180 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2184 if( DecoderIsFlushing( p_dec ) )
2188 DecoderSignalWait( p_dec );
2190 /* Check the decoder doesn't leak pictures */
2191 vout_FixLeaks( p_owner->p_vout );
2193 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2194 msleep( VOUT_OUTMEM_SLEEP );
2198 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2199 const subpicture_updater_t *p_updater )
2201 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2202 vout_thread_t *p_vout = NULL;
2203 subpicture_t *p_subpic;
2204 int i_attempts = 30;
2206 while( i_attempts-- )
2208 if( DecoderIsExitRequested( p_dec ) || DecoderIsFlushing( p_dec )
2212 p_vout = input_resource_HoldVout( p_owner->p_resource );
2216 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2221 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2225 if( p_owner->p_spu_vout != p_vout )
2227 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2228 p_owner->i_spu_order = 0;
2229 p_owner->p_spu_vout = p_vout;
2232 p_subpic = subpicture_New( p_updater );
2235 p_subpic->i_channel = p_owner->i_spu_channel;
2236 p_subpic->i_order = p_owner->i_spu_order++;
2237 p_subpic->b_subtitle = true;
2240 vlc_object_release( p_vout );