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 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 DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
64 static void DecoderFlush( decoder_t * );
65 static void DecoderSignalWait( decoder_t *, bool );
67 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
69 /* Buffers allocation callbacks for the decoders */
70 static picture_t *vout_new_buffer( decoder_t * );
71 static void vout_del_buffer( decoder_t *, picture_t * );
72 static void vout_link_picture( decoder_t *, picture_t * );
73 static void vout_unlink_picture( decoder_t *, picture_t * );
74 static int aout_update_format( decoder_t * );
75 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
76 static void spu_del_buffer( decoder_t *, subpicture_t * );
78 struct decoder_owner_sys_t
80 int64_t i_preroll_end;
82 input_thread_t *p_input;
83 input_resource_t*p_resource;
84 input_clock_t *p_clock;
87 vout_thread_t *p_spu_vout;
91 sout_instance_t *p_sout;
92 sout_packetizer_input_t *p_sout_input;
96 /* Some decoders require already packetized data (ie. not truncated) */
97 decoder_t *p_packetizer;
100 /* Current format in use by the output */
101 video_format_t video;
102 audio_format_t audio;
106 bool b_fmt_description;
107 es_format_t fmt_description;
108 vlc_meta_t *p_description;
111 block_fifo_t *p_fifo;
113 /* Lock for communication with decoder thread */
115 vlc_cond_t wait_request;
116 vlc_cond_t wait_acknowledge;
118 /* -- These variables need locking on write(only) -- */
119 audio_output_t *p_aout;
121 vout_thread_t *p_vout;
123 /* -- Theses variables need locking on read *and* write -- */
147 decoder_t *pp_decoder[4];
154 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
155 * a bogus PTS and won't be displayed */
156 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
159 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
162 /*****************************************************************************
164 *****************************************************************************/
165 picture_t *decoder_NewPicture( decoder_t *p_decoder )
167 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
169 msg_Warn( p_decoder, "can't get output picture" );
172 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
174 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
176 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
178 p_decoder->pf_picture_link( p_decoder, p_picture );
180 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
182 p_decoder->pf_picture_unlink( p_decoder, p_picture );
185 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
187 if( decoder_UpdateAudioFormat( dec ) )
190 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
191 / dec->fmt_out.audio.i_frame_length;
192 block_t *block = block_Alloc( length );
193 if( likely(block != NULL) )
195 block->i_nb_samples = samples;
196 block->i_pts = block->i_length = 0;
201 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
202 const subpicture_updater_t *p_dyn )
204 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
206 msg_Warn( p_decoder, "can't get output subpicture" );
210 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
212 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
215 /* decoder_GetInputAttachments:
217 int decoder_GetInputAttachments( decoder_t *p_dec,
218 input_attachment_t ***ppp_attachment,
221 if( !p_dec->pf_get_attachments )
224 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
226 /* decoder_GetDisplayDate:
228 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
230 if( !p_dec->pf_get_display_date )
231 return VLC_TS_INVALID;
233 return p_dec->pf_get_display_date( p_dec, i_ts );
235 /* decoder_GetDisplayRate:
237 int decoder_GetDisplayRate( decoder_t *p_dec )
239 if( !p_dec->pf_get_display_rate )
240 return INPUT_RATE_DEFAULT;
242 return p_dec->pf_get_display_rate( p_dec );
245 /* TODO: pass p_sout through p_resource? -- Courmisch */
246 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
247 es_format_t *fmt, input_clock_t *p_clock,
248 input_resource_t *p_resource,
249 sout_instance_t *p_sout )
251 decoder_t *p_dec = NULL;
252 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
255 /* Create the decoder configuration structure */
256 p_dec = CreateDecoder( p_parent, p_input, fmt,
257 p_sout != NULL, p_resource, p_sout );
260 msg_Err( p_parent, "could not create %s", psz_type );
261 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
262 _("VLC could not open the %s module."),
263 vlc_gettext( psz_type ) );
267 if( !p_dec->p_module )
269 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
271 DeleteDecoder( p_dec );
275 p_dec->p_owner->p_clock = p_clock;
276 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
278 if( p_dec->fmt_out.i_cat == AUDIO_ES )
279 i_priority = VLC_THREAD_PRIORITY_AUDIO;
281 i_priority = VLC_THREAD_PRIORITY_VIDEO;
283 /* Spawn the decoder thread */
284 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
286 msg_Err( p_dec, "cannot spawn decoder thread" );
287 module_unneed( p_dec, p_dec->p_module );
288 DeleteDecoder( p_dec );
297 * Spawns a new decoder thread from the input thread
299 * \param p_input the input thread
300 * \param p_es the es descriptor
301 * \return the spawned decoder object
303 decoder_t *input_DecoderNew( input_thread_t *p_input,
304 es_format_t *fmt, input_clock_t *p_clock,
305 sout_instance_t *p_sout )
307 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
308 p_input->p->p_resource, p_sout );
312 * Spawn a decoder thread outside of the input thread.
314 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, es_format_t *fmt,
315 input_resource_t *p_resource )
317 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
322 * Kills a decoder thread and waits until it's finished
324 * \param p_input the input thread
325 * \param p_es the es descriptor
328 void input_DecoderDelete( decoder_t *p_dec )
330 decoder_owner_sys_t *p_owner = p_dec->p_owner;
332 vlc_cancel( p_owner->thread );
334 /* Make sure we aren't paused/waiting/decoding anymore */
335 vlc_mutex_lock( &p_owner->lock );
336 const bool b_was_paused = p_owner->b_paused;
337 p_owner->b_paused = false;
338 p_owner->b_waiting = false;
339 p_owner->b_flushing = true;
340 p_owner->b_exit = true;
341 vlc_cond_signal( &p_owner->wait_request );
342 vlc_mutex_unlock( &p_owner->lock );
344 vlc_join( p_owner->thread, NULL );
345 p_owner->b_paused = b_was_paused;
347 module_unneed( p_dec, p_dec->p_module );
350 if( p_dec->p_owner->cc.b_supported )
353 for( i = 0; i < 4; i++ )
354 input_DecoderSetCcState( p_dec, false, i );
358 DeleteDecoder( p_dec );
362 * Put a block_t in the decoder's fifo.
363 * Thread-safe w.r.t. the decoder. May be a cancellation point.
365 * \param p_dec the decoder object
366 * \param p_block the data block
368 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
370 decoder_owner_sys_t *p_owner = p_dec->p_owner;
374 /* The fifo is not consumed when waiting and so will
376 * There is no need to lock as b_waiting is never modified
377 * inside decoder thread. */
378 if( !p_owner->b_waiting )
379 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
382 else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
384 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
387 /* FIXME: ideally we would check the time amount of data
388 * in the FIFO instead of its size. */
389 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
390 "consumed quickly enough), resetting fifo!" );
391 block_FifoEmpty( p_owner->p_fifo );
394 block_FifoPut( p_owner->p_fifo, p_block );
397 bool input_DecoderIsEmpty( decoder_t * p_dec )
399 decoder_owner_sys_t *p_owner = p_dec->p_owner;
400 assert( !p_owner->b_waiting );
402 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
406 vlc_mutex_lock( &p_owner->lock );
407 /* TODO subtitles support */
408 if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
409 b_empty = vout_IsEmpty( p_owner->p_vout );
410 else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout )
411 b_empty = aout_DecIsEmpty( p_owner->p_aout );
412 vlc_mutex_unlock( &p_owner->lock );
417 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
419 decoder_owner_sys_t *p_owner = p_dec->p_owner;
422 vlc_mutex_lock( &p_owner->lock );
423 for( i = 0; i < 4; i++ )
424 pb_present[i] = p_owner->cc.pb_present[i];
425 vlc_mutex_unlock( &p_owner->lock );
427 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
429 decoder_owner_sys_t *p_owner = p_dec->p_owner;
431 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
433 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
438 static const vlc_fourcc_t fcc[4] = {
439 VLC_FOURCC('c', 'c', '1', ' '),
440 VLC_FOURCC('c', 'c', '2', ' '),
441 VLC_FOURCC('c', 'c', '3', ' '),
442 VLC_FOURCC('c', 'c', '4', ' '),
447 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
448 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
449 p_dec->p_owner->p_clock, p_owner->p_sout );
452 msg_Err( p_dec, "could not create decoder" );
453 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
454 _("VLC could not open the decoder module.") );
457 else if( !p_cc->p_module )
459 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
460 input_DecoderDelete(p_cc);
463 p_cc->p_owner->p_clock = p_owner->p_clock;
465 vlc_mutex_lock( &p_owner->lock );
466 p_owner->cc.pp_decoder[i_channel] = p_cc;
467 vlc_mutex_unlock( &p_owner->lock );
473 vlc_mutex_lock( &p_owner->lock );
474 p_cc = p_owner->cc.pp_decoder[i_channel];
475 p_owner->cc.pp_decoder[i_channel] = NULL;
476 vlc_mutex_unlock( &p_owner->lock );
479 input_DecoderDelete(p_cc);
483 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
485 decoder_owner_sys_t *p_owner = p_dec->p_owner;
488 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
491 vlc_mutex_lock( &p_owner->lock );
492 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
493 vlc_mutex_unlock( &p_owner->lock );
497 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
499 decoder_owner_sys_t *p_owner = p_dec->p_owner;
501 vlc_mutex_lock( &p_owner->lock );
502 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
503 * while the input is paused (e.g. add sub file), then b_paused is
504 * (incorrectly) false. */
505 if( likely(p_owner->b_paused != b_paused) ) {
506 p_owner->b_paused = b_paused;
507 p_owner->pause.i_date = i_date;
508 p_owner->pause.i_ignore = 0;
509 vlc_cond_signal( &p_owner->wait_request );
511 DecoderOutputChangePause( p_dec, b_paused, i_date );
513 vlc_mutex_unlock( &p_owner->lock );
516 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
518 decoder_owner_sys_t *p_owner = p_dec->p_owner;
520 vlc_mutex_lock( &p_owner->lock );
521 p_owner->i_ts_delay = i_delay;
522 vlc_mutex_unlock( &p_owner->lock );
525 void input_DecoderStartWait( decoder_t *p_dec )
527 decoder_owner_sys_t *p_owner = p_dec->p_owner;
529 vlc_mutex_lock( &p_owner->lock );
531 DecoderFlush( p_dec );
533 p_owner->b_first = true;
534 p_owner->b_has_data = false;
536 p_owner->b_waiting = true;
538 vlc_cond_signal( &p_owner->wait_request );
540 vlc_mutex_unlock( &p_owner->lock );
543 void input_DecoderStopWait( decoder_t *p_dec )
545 decoder_owner_sys_t *p_owner = p_dec->p_owner;
547 vlc_mutex_lock( &p_owner->lock );
549 p_owner->b_waiting = false;
551 vlc_cond_signal( &p_owner->wait_request );
553 vlc_mutex_unlock( &p_owner->lock );
556 void input_DecoderWait( decoder_t *p_dec )
558 decoder_owner_sys_t *p_owner = p_dec->p_owner;
560 vlc_mutex_lock( &p_owner->lock );
562 while( p_owner->b_waiting && !p_owner->b_has_data )
564 block_FifoWake( p_owner->p_fifo );
565 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
568 vlc_mutex_unlock( &p_owner->lock );
571 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
573 decoder_owner_sys_t *p_owner = p_dec->p_owner;
577 vlc_mutex_lock( &p_owner->lock );
578 if( p_dec->fmt_out.i_cat == VIDEO_ES )
580 if( p_owner->b_paused && p_owner->p_vout )
582 vout_NextPicture( p_owner->p_vout, pi_duration );
583 p_owner->pause.i_ignore++;
584 vlc_cond_signal( &p_owner->wait_request );
589 /* TODO subtitle should not be flushed */
590 DecoderFlush( p_dec );
592 vlc_mutex_unlock( &p_owner->lock );
595 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
597 decoder_owner_sys_t *p_owner = p_dec->p_owner;
600 vlc_mutex_lock( &p_owner->lock );
601 b_changed = p_owner->b_fmt_description;
605 es_format_Copy( p_fmt, &p_owner->fmt_description );
610 if( p_owner->p_description )
612 *pp_meta = vlc_meta_New();
614 vlc_meta_Merge( *pp_meta, p_owner->p_description );
617 p_owner->b_fmt_description = false;
619 vlc_mutex_unlock( &p_owner->lock );
623 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
625 decoder_owner_sys_t *p_owner = p_dec->p_owner;
627 return block_FifoSize( p_owner->p_fifo );
630 void input_DecoderGetObjects( decoder_t *p_dec,
631 vout_thread_t **pp_vout, audio_output_t **pp_aout )
633 decoder_owner_sys_t *p_owner = p_dec->p_owner;
635 vlc_mutex_lock( &p_owner->lock );
637 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
639 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
640 vlc_mutex_unlock( &p_owner->lock );
643 /*****************************************************************************
645 *****************************************************************************/
646 static int DecoderGetInputAttachments( decoder_t *p_dec,
647 input_attachment_t ***ppp_attachment,
650 input_thread_t *p_input = p_dec->p_owner->p_input;
652 if( unlikely(p_input == NULL) )
654 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
655 ppp_attachment, pi_attachment );
657 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
659 decoder_owner_sys_t *p_owner = p_dec->p_owner;
661 vlc_mutex_lock( &p_owner->lock );
662 if( p_owner->b_waiting || p_owner->b_paused )
663 i_ts = VLC_TS_INVALID;
664 vlc_mutex_unlock( &p_owner->lock );
666 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
669 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
670 return VLC_TS_INVALID;
674 static int DecoderGetDisplayRate( decoder_t *p_dec )
676 decoder_owner_sys_t *p_owner = p_dec->p_owner;
678 if( !p_owner->p_clock )
679 return INPUT_RATE_DEFAULT;
680 return input_clock_GetRate( p_owner->p_clock );
684 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
686 if (codec != VLC_FOURCC('u','n','d','f')) {
687 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
689 desc = N_("No description for this codec");
690 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
691 dialog_Fatal( p_dec, _("Codec not supported"),
692 _("VLC could not decode the format \"%4.4s\" (%s)"),
693 (char*)&codec, desc );
695 msg_Err( p_dec, "could not identify codec" );
696 dialog_Fatal( p_dec, _("Unidentified codec"),
697 _("VLC could not identify the audio or video codec" ) );
703 * Create a decoder object
705 * \param p_input the input thread
706 * \param p_es the es descriptor
707 * \param b_packetizer instead of a decoder
708 * \return the decoder object
710 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
711 input_thread_t *p_input,
712 es_format_t *fmt, bool b_packetizer,
713 input_resource_t *p_resource,
714 sout_instance_t *p_sout )
717 decoder_owner_sys_t *p_owner;
718 es_format_t null_es_format;
720 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
724 p_dec->pf_decode_audio = NULL;
725 p_dec->pf_decode_video = NULL;
726 p_dec->pf_decode_sub = NULL;
727 p_dec->pf_get_cc = NULL;
728 p_dec->pf_packetize = NULL;
730 /* Initialize the decoder */
731 p_dec->p_module = NULL;
733 memset( &null_es_format, 0, sizeof(es_format_t) );
734 es_format_Copy( &p_dec->fmt_in, fmt );
735 es_format_Copy( &p_dec->fmt_out, &null_es_format );
737 p_dec->p_description = NULL;
739 /* Allocate our private structure for the decoder */
740 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
741 if( unlikely(p_owner == NULL) )
743 vlc_object_release( p_dec );
746 p_owner->i_preroll_end = VLC_TS_INVALID;
747 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
748 p_owner->p_input = p_input;
749 p_owner->p_resource = p_resource;
750 p_owner->p_aout = NULL;
751 p_owner->p_vout = NULL;
752 p_owner->p_spu_vout = NULL;
753 p_owner->i_spu_channel = 0;
754 p_owner->i_spu_order = 0;
755 p_owner->p_sout = p_sout;
756 p_owner->p_sout_input = NULL;
757 p_owner->p_packetizer = NULL;
758 p_owner->b_packetizer = b_packetizer;
761 p_owner->p_fifo = block_FifoNew();
762 if( unlikely(p_owner->p_fifo == NULL) )
765 vlc_object_release( p_dec );
769 /* Set buffers allocation callbacks for the decoders */
770 p_dec->pf_aout_format_update = aout_update_format;
771 p_dec->pf_vout_buffer_new = vout_new_buffer;
772 p_dec->pf_vout_buffer_del = vout_del_buffer;
773 p_dec->pf_picture_link = vout_link_picture;
774 p_dec->pf_picture_unlink = vout_unlink_picture;
775 p_dec->pf_spu_buffer_new = spu_new_buffer;
776 p_dec->pf_spu_buffer_del = spu_del_buffer;
778 p_dec->pf_get_attachments = DecoderGetInputAttachments;
779 p_dec->pf_get_display_date = DecoderGetDisplayDate;
780 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
782 /* Find a suitable decoder/packetizer module */
784 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
786 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
788 /* Check if decoder requires already packetized data */
790 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
792 p_owner->p_packetizer =
793 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
794 if( p_owner->p_packetizer )
796 es_format_Copy( &p_owner->p_packetizer->fmt_in,
799 es_format_Copy( &p_owner->p_packetizer->fmt_out,
802 p_owner->p_packetizer->p_module =
803 module_need( p_owner->p_packetizer,
804 "packetizer", "$packetizer", false );
806 if( !p_owner->p_packetizer->p_module )
808 es_format_Clean( &p_owner->p_packetizer->fmt_in );
809 vlc_object_release( p_owner->p_packetizer );
814 /* Copy ourself the input replay gain */
815 if( fmt->i_cat == AUDIO_ES )
817 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
819 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
821 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
822 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
824 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
826 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
827 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
833 vlc_mutex_init( &p_owner->lock );
834 vlc_cond_init( &p_owner->wait_request );
835 vlc_cond_init( &p_owner->wait_acknowledge );
837 p_owner->b_fmt_description = false;
838 es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
839 p_owner->p_description = NULL;
841 p_owner->b_exit = false;
843 p_owner->b_paused = false;
844 p_owner->pause.i_date = VLC_TS_INVALID;
845 p_owner->pause.i_ignore = 0;
847 p_owner->b_waiting = false;
848 p_owner->b_first = true;
849 p_owner->b_has_data = false;
851 p_owner->b_flushing = false;
854 p_owner->cc.b_supported = false;
857 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
858 p_owner->cc.b_supported = true;
859 if( p_dec->pf_get_cc )
860 p_owner->cc.b_supported = true;
863 for( unsigned i = 0; i < 4; i++ )
865 p_owner->cc.pb_present[i] = false;
866 p_owner->cc.pp_decoder[i] = NULL;
868 p_owner->i_ts_delay = 0;
873 * The decoding main loop
875 * \param p_dec the decoder
877 static void *DecoderThread( void *p_data )
879 decoder_t *p_dec = (decoder_t *)p_data;
880 decoder_owner_sys_t *p_owner = p_dec->p_owner;
882 /* The decoder's main loop */
885 block_t *p_block = block_FifoGet( p_owner->p_fifo );
887 /* Make sure there is no cancellation point other than this one^^.
888 * If you need one, be sure to push cleanup of p_block. */
889 bool end_wait = !p_block || p_block->i_flags & BLOCK_FLAG_CORE_EOS;
890 DecoderSignalWait( p_dec, end_wait );
892 input_DecoderStopWait( p_dec );
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 /* Monitor for flush end */
938 p_owner->b_flushing = true;
939 vlc_cond_signal( &p_owner->wait_request );
941 /* Send a special block */
942 block_t *p_null = DecoderBlockFlushNew();
945 input_DecoderDecode( p_dec, p_null, false );
948 while( p_owner->b_flushing )
949 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
952 static void DecoderSignalWait( decoder_t *p_dec, bool b_has_data )
954 decoder_owner_sys_t *p_owner = p_dec->p_owner;
956 vlc_mutex_lock( &p_owner->lock );
958 if( p_owner->b_waiting )
961 p_owner->b_has_data = true;
962 vlc_cond_signal( &p_owner->wait_acknowledge );
965 vlc_mutex_unlock( &p_owner->lock );
968 static bool DecoderIsFlushing( decoder_t *p_dec )
970 decoder_owner_sys_t *p_owner = p_dec->p_owner;
973 vlc_mutex_lock( &p_owner->lock );
975 b_flushing = p_owner->b_flushing;
977 vlc_mutex_unlock( &p_owner->lock );
982 static bool DecoderWaitUnblock( decoder_t *p_dec )
984 decoder_owner_sys_t *p_owner = p_dec->p_owner;
986 vlc_assert_locked( &p_owner->lock );
990 if( p_owner->b_flushing )
992 if( p_owner->b_paused )
994 if( p_owner->b_waiting && !p_owner->b_has_data )
996 if( p_owner->pause.i_ignore > 0 )
998 p_owner->pause.i_ignore--;
1004 if( !p_owner->b_waiting || !p_owner->b_has_data )
1007 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1010 return p_owner->b_flushing;
1013 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1015 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1017 vlc_assert_locked( &p_owner->lock );
1019 /* XXX only audio and video output have to be paused.
1020 * - for sout it is useless
1021 * - for subs, it is done by the vout
1023 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1025 if( p_owner->p_aout )
1026 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
1028 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1030 if( p_owner->p_vout )
1031 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
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( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1066 *pi_ts0 = VLC_TS_INVALID;
1070 i_rate = input_clock_GetRate( p_clock );
1073 /* Do not create ephemere data because of rounding errors */
1074 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1078 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1079 / INPUT_RATE_DEFAULT;
1085 static bool DecoderIsExitRequested( decoder_t *p_dec )
1087 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1089 vlc_mutex_lock( &p_owner->lock );
1090 bool b_exit = p_owner->b_exit;
1091 vlc_mutex_unlock( &p_owner->lock );
1097 * If *pb_reject, it does nothing, otherwise it waits for the given
1098 * deadline or a flush request (in which case it set *pi_reject to true.
1100 static void DecoderWaitDate( decoder_t *p_dec,
1101 bool *pb_reject, mtime_t i_deadline )
1103 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1105 vlc_assert_locked( &p_owner->lock );
1107 if( *pb_reject || i_deadline < 0 )
1112 if( p_owner->b_flushing || p_owner->b_exit )
1118 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1119 i_deadline ) == 0 );
1122 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1123 int *pi_played_sum, int *pi_lost_sum )
1125 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1126 audio_output_t *p_aout = p_owner->p_aout;
1129 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1131 msg_Warn( p_dec, "non-dated audio buffer received" );
1133 block_Release( p_audio );
1138 vlc_mutex_lock( &p_owner->lock );
1140 if( p_audio && p_owner->b_waiting )
1142 p_owner->b_has_data = true;
1143 vlc_cond_signal( &p_owner->wait_acknowledge );
1150 bool b_reject = DecoderWaitUnblock( p_dec );
1152 b_paused = p_owner->b_paused;
1158 int i_rate = INPUT_RATE_DEFAULT;
1160 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1161 &i_rate, AOUT_MAX_ADVANCE_TIME );
1163 if( p_audio->i_pts <= VLC_TS_INVALID
1164 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1165 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1168 DecoderWaitDate( p_dec, &b_reject,
1169 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1171 if( unlikely(p_owner->b_paused != b_paused) )
1172 continue; /* race with input thread? retry... */
1173 if( p_aout == NULL )
1178 assert( !p_owner->b_paused );
1179 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1180 *pi_played_sum += 1;
1181 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1185 msg_Dbg( p_dec, "discarded audio buffer" );
1187 block_Release( p_audio );
1192 vlc_mutex_unlock( &p_owner->lock );
1195 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1197 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1198 block_t *p_aout_buf;
1204 /* Play a NULL block to output buffered frames */
1205 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1207 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1209 if( DecoderIsExitRequested( p_dec ) )
1211 /* It prevent freezing VLC in case of broken decoder */
1212 block_Release( p_aout_buf );
1214 block_Release( p_block );
1219 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1220 p_aout_buf->i_pts < p_owner->i_preroll_end )
1222 block_Release( p_aout_buf );
1226 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1228 msg_Dbg( p_dec, "End of audio preroll" );
1229 if( p_owner->p_aout )
1230 aout_DecFlush( p_owner->p_aout );
1232 p_owner->i_preroll_end = VLC_TS_INVALID;
1235 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1238 /* Update ugly stat */
1239 input_thread_t *p_input = p_owner->p_input;
1241 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1243 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1244 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1245 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1246 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1247 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1250 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1252 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1255 bool b_processed = false;
1259 assert( p_dec_cc->pf_get_cc != NULL );
1261 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1262 if( !p_owner->cc.b_supported )
1265 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1269 vlc_mutex_lock( &p_owner->lock );
1270 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1272 p_owner->cc.pb_present[i] |= pb_present[i];
1273 if( p_owner->cc.pp_decoder[i] )
1277 for( i = 0; i < 4; i++ )
1279 if( !p_owner->cc.pp_decoder[i] )
1282 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1283 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1288 vlc_mutex_unlock( &p_owner->lock );
1291 block_Release( p_cc );
1294 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1295 int *pi_played_sum, int *pi_lost_sum )
1297 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1298 vout_thread_t *p_vout = p_owner->p_vout;
1300 if( p_picture->date <= VLC_TS_INVALID )
1302 msg_Warn( p_dec, "non-dated video buffer received" );
1304 vout_ReleasePicture( p_vout, p_picture );
1309 vlc_mutex_lock( &p_owner->lock );
1311 if( p_owner->b_waiting && !p_owner->b_first )
1313 p_owner->b_has_data = true;
1314 vlc_cond_signal( &p_owner->wait_acknowledge );
1316 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1318 bool b_reject = DecoderWaitUnblock( p_dec );
1320 if( p_owner->b_waiting )
1322 assert( p_owner->b_first );
1323 msg_Dbg( p_dec, "Received first picture" );
1324 p_owner->b_first = false;
1325 p_picture->b_force = true;
1328 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1329 int i_rate = INPUT_RATE_DEFAULT;
1330 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1331 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1333 vlc_mutex_unlock( &p_owner->lock );
1336 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1341 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1343 /* Be sure to not display old picture after our own */
1344 vout_Flush( p_vout, p_picture->date );
1345 p_owner->i_last_rate = i_rate;
1347 vout_PutPicture( p_vout, p_picture );
1352 msg_Warn( p_dec, "early picture skipped" );
1354 msg_Warn( p_dec, "non-dated video buffer received" );
1357 vout_ReleasePicture( p_vout, p_picture );
1361 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1363 *pi_played_sum += i_tmp_display;
1364 *pi_lost_sum += i_tmp_lost;
1367 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1369 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1373 int i_displayed = 0;
1375 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1377 vout_thread_t *p_vout = p_owner->p_vout;
1378 if( DecoderIsExitRequested( p_dec ) )
1380 /* It prevent freezing VLC in case of broken decoder */
1381 vout_ReleasePicture( p_vout, p_pic );
1383 block_Release( p_block );
1389 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1391 vout_ReleasePicture( p_vout, p_pic );
1395 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1397 msg_Dbg( p_dec, "End of video preroll" );
1399 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1401 p_owner->i_preroll_end = VLC_TS_INVALID;
1404 if( p_dec->pf_get_cc &&
1405 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1406 DecoderGetCc( p_dec, p_dec );
1408 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1411 /* Update ugly stat */
1412 input_thread_t *p_input = p_owner->p_input;
1414 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1416 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1417 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1418 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1419 stats_Update( p_input->p->counters.p_displayed_pictures,
1421 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1425 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1427 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1428 vout_thread_t *p_vout = p_owner->p_spu_vout;
1431 if( p_subpic->i_start <= VLC_TS_INVALID )
1433 msg_Warn( p_dec, "non-dated spu buffer received" );
1434 subpicture_Delete( p_subpic );
1439 vlc_mutex_lock( &p_owner->lock );
1441 if( p_owner->b_waiting )
1443 p_owner->b_has_data = true;
1444 vlc_cond_signal( &p_owner->wait_acknowledge );
1447 bool b_reject = DecoderWaitUnblock( p_dec );
1449 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1452 if( p_subpic->i_start <= VLC_TS_INVALID )
1455 DecoderWaitDate( p_dec, &b_reject,
1456 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1457 vlc_mutex_unlock( &p_owner->lock );
1460 vout_PutSubpicture( p_vout, p_subpic );
1462 subpicture_Delete( p_subpic );
1466 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1468 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1470 assert( p_owner->p_clock );
1471 assert( !p_sout_block->p_next );
1473 vlc_mutex_lock( &p_owner->lock );
1475 if( p_owner->b_waiting )
1477 p_owner->b_has_data = true;
1478 vlc_cond_signal( &p_owner->wait_acknowledge );
1481 bool b_reject = DecoderWaitUnblock( p_dec );
1483 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1484 &p_sout_block->i_length, NULL, INT64_MAX );
1486 vlc_mutex_unlock( &p_owner->lock );
1489 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1491 block_Release( p_sout_block );
1496 /* This function process a block for sout
1498 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1500 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1501 block_t *p_sout_block;
1503 while( ( p_sout_block =
1504 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1506 if( !p_owner->p_sout_input )
1508 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1510 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1511 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1512 if( p_dec->fmt_in.psz_language )
1514 free( p_owner->sout.psz_language );
1515 p_owner->sout.psz_language =
1516 strdup( p_dec->fmt_in.psz_language );
1519 p_owner->p_sout_input =
1520 sout_InputNew( p_owner->p_sout,
1523 if( p_owner->p_sout_input == NULL )
1525 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1526 (char *)&p_owner->sout.i_codec );
1527 p_dec->b_error = true;
1529 while( p_sout_block )
1531 block_t *p_next = p_sout_block->p_next;
1532 block_Release( p_sout_block );
1533 p_sout_block = p_next;
1539 while( p_sout_block )
1541 block_t *p_next = p_sout_block->p_next;
1543 p_sout_block->p_next = NULL;
1545 DecoderPlaySout( p_dec, p_sout_block );
1547 p_sout_block = p_next;
1553 /* This function process a video block
1555 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1557 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1559 if( p_owner->p_packetizer )
1561 block_t *p_packetized_block;
1562 decoder_t *p_packetizer = p_owner->p_packetizer;
1564 while( (p_packetized_block =
1565 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1567 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1569 es_format_Clean( &p_dec->fmt_in );
1570 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1572 if( p_packetizer->pf_get_cc )
1573 DecoderGetCc( p_dec, p_packetizer );
1575 while( p_packetized_block )
1577 block_t *p_next = p_packetized_block->p_next;
1578 p_packetized_block->p_next = NULL;
1580 DecoderDecodeVideo( p_dec, p_packetized_block );
1582 p_packetized_block = p_next;
1585 /* The packetizer does not output a block that tell the decoder to flush
1589 block_t *p_null = DecoderBlockFlushNew();
1591 DecoderDecodeVideo( p_dec, p_null );
1596 DecoderDecodeVideo( p_dec, p_block );
1599 if( b_flush && p_owner->p_vout )
1600 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1603 /* This function process a audio block
1605 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1607 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1609 if( p_owner->p_packetizer )
1611 block_t *p_packetized_block;
1612 decoder_t *p_packetizer = p_owner->p_packetizer;
1614 while( (p_packetized_block =
1615 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1617 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1619 es_format_Clean( &p_dec->fmt_in );
1620 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1623 while( p_packetized_block )
1625 block_t *p_next = p_packetized_block->p_next;
1626 p_packetized_block->p_next = NULL;
1628 DecoderDecodeAudio( p_dec, p_packetized_block );
1630 p_packetized_block = p_next;
1633 /* The packetizer does not output a block that tell the decoder to flush
1637 block_t *p_null = DecoderBlockFlushNew();
1639 DecoderDecodeAudio( p_dec, p_null );
1644 DecoderDecodeAudio( p_dec, p_block );
1647 if( b_flush && p_owner->p_aout )
1648 aout_DecFlush( p_owner->p_aout );
1651 /* This function process a subtitle block
1653 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1655 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1657 input_thread_t *p_input = p_owner->p_input;
1658 vout_thread_t *p_vout;
1659 subpicture_t *p_spu;
1661 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1663 if( p_input != NULL )
1665 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1666 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1667 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1670 p_vout = input_resource_HoldVout( p_owner->p_resource );
1671 if( p_vout && p_owner->p_spu_vout == p_vout )
1673 /* Preroll does not work very well with subtitle */
1674 if( p_spu->i_start > VLC_TS_INVALID &&
1675 p_spu->i_start < p_owner->i_preroll_end &&
1676 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1678 subpicture_Delete( p_spu );
1682 DecoderPlaySpu( p_dec, p_spu );
1687 subpicture_Delete( p_spu );
1690 vlc_object_release( p_vout );
1693 if( b_flush && p_owner->p_spu_vout )
1695 p_vout = input_resource_HoldVout( p_owner->p_resource );
1697 if( p_vout && p_owner->p_spu_vout == p_vout )
1698 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1701 vlc_object_release( p_vout );
1706 static void DecoderProcessOnFlush( decoder_t *p_dec )
1708 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1710 vlc_mutex_lock( &p_owner->lock );
1712 if( p_owner->b_flushing )
1714 p_owner->b_flushing = false;
1715 vlc_cond_signal( &p_owner->wait_acknowledge );
1717 vlc_mutex_unlock( &p_owner->lock );
1723 * \param p_dec the decoder object
1724 * \param p_block the block to decode
1725 * \return VLC_SUCCESS or an error code
1727 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1729 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1730 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1732 if( p_dec->b_error )
1735 block_Release( p_block );
1739 if( p_block && p_block->i_buffer <= 0 )
1741 assert( !b_flush_request );
1742 block_Release( p_block );
1747 if( p_owner->b_packetizer )
1750 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1752 DecoderProcessSout( p_dec, p_block );
1757 bool b_flush = false;
1761 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1762 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1764 b_flush = !b_flushing && b_flush_request;
1766 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1769 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1771 DecoderProcessAudio( p_dec, p_block, b_flush );
1773 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1775 DecoderProcessVideo( p_dec, p_block, b_flush );
1777 else if( p_dec->fmt_out.i_cat == SPU_ES )
1779 DecoderProcessSpu( p_dec, p_block, b_flush );
1783 msg_Err( p_dec, "unknown ES format" );
1784 p_dec->b_error = true;
1790 if( b_flush_request )
1791 DecoderProcessOnFlush( p_dec );
1795 * Destroys a decoder object
1797 * \param p_dec the decoder object
1800 static void DeleteDecoder( decoder_t * p_dec )
1802 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1804 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1805 (char*)&p_dec->fmt_in.i_codec,
1806 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1808 /* Free all packets still in the decoder fifo. */
1809 block_FifoEmpty( p_owner->p_fifo );
1810 block_FifoRelease( p_owner->p_fifo );
1813 if( p_owner->p_aout )
1815 /* TODO: REVISIT gap-less audio */
1816 aout_DecFlush( p_owner->p_aout );
1817 aout_DecDelete( p_owner->p_aout );
1818 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1819 if( p_owner->p_input != NULL )
1820 input_SendEventAout( p_owner->p_input );
1822 if( p_owner->p_vout )
1824 /* Hack to make sure all the the pictures are freed by the decoder
1825 * and that the vout is not paused anymore */
1826 vout_Reset( p_owner->p_vout );
1829 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1831 if( p_owner->p_input != NULL )
1832 input_SendEventVout( p_owner->p_input );
1836 if( p_owner->p_sout_input )
1838 sout_InputDelete( p_owner->p_sout_input );
1839 es_format_Clean( &p_owner->sout );
1843 if( p_dec->fmt_out.i_cat == SPU_ES )
1845 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1848 if( p_owner->p_spu_vout == p_vout )
1849 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1850 vlc_object_release( p_vout );
1854 es_format_Clean( &p_dec->fmt_in );
1855 es_format_Clean( &p_dec->fmt_out );
1856 if( p_dec->p_description )
1857 vlc_meta_Delete( p_dec->p_description );
1858 es_format_Clean( &p_owner->fmt_description );
1859 if( p_owner->p_description )
1860 vlc_meta_Delete( p_owner->p_description );
1862 if( p_owner->p_packetizer )
1864 module_unneed( p_owner->p_packetizer,
1865 p_owner->p_packetizer->p_module );
1866 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1867 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1868 if( p_owner->p_packetizer->p_description )
1869 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1870 vlc_object_release( p_owner->p_packetizer );
1873 vlc_cond_destroy( &p_owner->wait_acknowledge );
1874 vlc_cond_destroy( &p_owner->wait_request );
1875 vlc_mutex_destroy( &p_owner->lock );
1877 vlc_object_release( p_dec );
1882 /*****************************************************************************
1883 * Buffers allocation callbacks for the decoders
1884 *****************************************************************************/
1885 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1887 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1889 vlc_assert_locked( &p_owner->lock );
1891 p_owner->b_fmt_description = true;
1893 /* Copy es_format */
1894 es_format_Clean( &p_owner->fmt_description );
1895 es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
1897 /* Move p_description */
1898 if( p_owner->p_description && p_dec->p_description )
1899 vlc_meta_Delete( p_owner->p_description );
1900 p_owner->p_description = p_dec->p_description;
1901 p_dec->p_description = NULL;
1903 static vout_thread_t *aout_request_vout( void *p_private,
1904 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1906 decoder_t *p_dec = p_private;
1907 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1908 input_thread_t *p_input = p_owner->p_input;
1910 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1912 if( p_input != NULL )
1913 input_SendEventVout( p_input );
1918 static int aout_update_format( decoder_t *p_dec )
1920 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1923 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->audio) )
1925 audio_output_t *p_aout = p_owner->p_aout;
1927 /* Parameters changed, restart the aout */
1928 vlc_mutex_lock( &p_owner->lock );
1930 aout_DecDelete( p_owner->p_aout );
1931 p_owner->p_aout = NULL;
1933 vlc_mutex_unlock( &p_owner->lock );
1934 input_resource_PutAout( p_owner->p_resource, p_aout );
1937 if( p_owner->p_aout == NULL )
1939 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1940 audio_sample_format_t format;
1941 audio_output_t *p_aout;
1942 aout_request_vout_t request_vout;
1944 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1945 p_owner->audio = p_dec->fmt_out.audio;
1946 aout_FormatPrepare( &p_owner->audio );
1948 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1949 if( i_force_dolby &&
1950 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1951 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1953 if( i_force_dolby == 1 )
1955 format.i_original_channels = format.i_original_channels |
1956 AOUT_CHAN_DOLBYSTEREO;
1958 else /* i_force_dolby == 2 */
1960 format.i_original_channels = format.i_original_channels &
1961 ~AOUT_CHAN_DOLBYSTEREO;
1965 request_vout.pf_request_vout = aout_request_vout;
1966 request_vout.p_private = p_dec;
1968 assert( p_owner->p_aout == NULL );
1969 p_aout = input_resource_GetAout( p_owner->p_resource );
1972 if( aout_DecNew( p_aout, &format,
1973 &p_dec->fmt_out.audio_replay_gain,
1976 input_resource_PutAout( p_owner->p_resource, p_aout );
1981 vlc_mutex_lock( &p_owner->lock );
1983 p_owner->p_aout = p_aout;
1984 DecoderUpdateFormatLocked( p_dec );
1985 if( unlikely(p_owner->b_paused) ) /* fake pause if needed */
1986 aout_DecChangePause( p_aout, true, mdate() );
1988 vlc_mutex_unlock( &p_owner->lock );
1990 if( p_owner->p_input != NULL )
1991 input_SendEventAout( p_owner->p_input );
1993 if( p_aout == NULL )
1995 msg_Err( p_dec, "failed to create audio output" );
1996 p_dec->b_error = true;
2000 p_dec->fmt_out.audio.i_bytes_per_frame =
2001 p_owner->audio.i_bytes_per_frame;
2002 p_dec->fmt_out.audio.i_frame_length = p_owner->audio.i_frame_length;
2007 static picture_t *vout_new_buffer( decoder_t *p_dec )
2009 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2011 if( p_owner->p_vout == NULL ||
2012 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2013 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2014 p_dec->fmt_out.video.i_visible_width != p_owner->video.i_visible_width ||
2015 p_dec->fmt_out.video.i_visible_height != p_owner->video.i_visible_height ||
2016 p_dec->fmt_out.video.i_x_offset != p_owner->video.i_x_offset ||
2017 p_dec->fmt_out.video.i_y_offset != p_owner->video.i_y_offset ||
2018 p_dec->fmt_out.i_codec != p_owner->video.i_chroma ||
2019 (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->video.i_sar_den !=
2020 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->video.i_sar_num )
2022 vout_thread_t *p_vout;
2024 if( !p_dec->fmt_out.video.i_width ||
2025 !p_dec->fmt_out.video.i_height )
2027 /* Can't create a new vout without display size */
2031 video_format_t fmt = p_dec->fmt_out.video;
2032 fmt.i_chroma = p_dec->fmt_out.i_codec;
2033 p_owner->video = fmt;
2035 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2037 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2038 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2040 while( fmt.i_width % dsc->p[i].w.den )
2042 while( fmt.i_height % dsc->p[i].h.den )
2047 if( !fmt.i_visible_width || !fmt.i_visible_height )
2049 if( p_dec->fmt_in.video.i_visible_width &&
2050 p_dec->fmt_in.video.i_visible_height )
2052 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2053 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2054 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2055 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2059 fmt.i_visible_width = fmt.i_width;
2060 fmt.i_visible_height = fmt.i_height;
2066 if( fmt.i_visible_height == 1088 &&
2067 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2069 fmt.i_visible_height = 1080;
2070 if( !(fmt.i_sar_num % 136))
2072 fmt.i_sar_num *= 135;
2073 fmt.i_sar_den *= 136;
2075 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2078 if( !fmt.i_sar_num || !fmt.i_sar_den )
2084 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2085 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2087 vlc_mutex_lock( &p_owner->lock );
2089 p_vout = p_owner->p_vout;
2090 p_owner->p_vout = NULL;
2091 vlc_mutex_unlock( &p_owner->lock );
2094 switch( p_dec->fmt_in.i_codec )
2096 case VLC_CODEC_HEVC:
2097 case VLC_CODEC_H264:
2098 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2103 case VLC_CODEC_VP6F:
2111 p_vout = input_resource_RequestVout( p_owner->p_resource,
2114 p_dec->i_extra_picture_buffers + 1,
2116 vlc_mutex_lock( &p_owner->lock );
2117 p_owner->p_vout = p_vout;
2119 DecoderUpdateFormatLocked( p_dec );
2121 vlc_mutex_unlock( &p_owner->lock );
2123 if( p_owner->p_input != NULL )
2124 input_SendEventVout( p_owner->p_input );
2125 if( p_vout == NULL )
2127 msg_Err( p_dec, "failed to create video output" );
2128 p_dec->b_error = true;
2133 /* Get a new picture
2137 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2140 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2144 if( DecoderIsFlushing( p_dec ) )
2148 DecoderSignalWait( p_dec, true );
2150 /* Check the decoder doesn't leak pictures */
2151 vout_FixLeaks( p_owner->p_vout );
2153 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2154 msleep( VOUT_OUTMEM_SLEEP );
2158 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2160 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2163 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2165 vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2168 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2170 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2173 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2174 const subpicture_updater_t *p_updater )
2176 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2177 vout_thread_t *p_vout = NULL;
2178 subpicture_t *p_subpic;
2179 int i_attempts = 30;
2181 while( i_attempts-- )
2183 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2186 p_vout = input_resource_HoldVout( p_owner->p_resource );
2190 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2195 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2199 if( p_owner->p_spu_vout != p_vout )
2201 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2202 p_owner->i_spu_order = 0;
2203 p_owner->p_spu_vout = p_vout;
2206 p_subpic = subpicture_New( p_updater );
2209 p_subpic->i_channel = p_owner->i_spu_channel;
2210 p_subpic->i_order = p_owner->i_spu_order++;
2211 p_subpic->b_subtitle = true;
2214 vlc_object_release( p_vout );
2219 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2221 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2222 vout_thread_t *p_vout = NULL;
2224 p_vout = input_resource_HoldVout( p_owner->p_resource );
2225 if( !p_vout || p_owner->p_spu_vout != p_vout )
2228 vlc_object_release( p_vout );
2229 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2233 subpicture_Delete( p_subpic );
2235 vlc_object_release( p_vout );