1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
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
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
34 #include <vlc_common.h>
36 #include <vlc_block.h>
40 #include <vlc_codec.h>
44 #include <vlc_interface.h>
45 #include "audio_output/aout_internal.h"
46 #include "stream_output/stream_output.h"
47 #include "input_internal.h"
53 #include "../video_output/vout_control.h"
55 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
56 static void DeleteDecoder( decoder_t * );
58 static void *DecoderThread( vlc_object_t * );
59 static void DecoderProcess( decoder_t *, block_t * );
60 static void DecoderError( decoder_t *p_dec, block_t *p_block );
61 static void DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
62 static void DecoderFlush( decoder_t * );
63 static void DecoderSignalBuffering( decoder_t *, bool );
64 static void DecoderFlushBuffering( decoder_t * );
66 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
68 /* Buffers allocation callbacks for the decoders */
69 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
70 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
72 static picture_t *vout_new_buffer( decoder_t * );
73 static void vout_del_buffer( decoder_t *, picture_t * );
74 static void vout_link_picture( decoder_t *, picture_t * );
75 static void vout_unlink_picture( decoder_t *, picture_t * );
77 static subpicture_t *spu_new_buffer( decoder_t * );
78 static void spu_del_buffer( decoder_t *, subpicture_t * );
80 struct decoder_owner_sys_t
82 int64_t i_preroll_end;
84 input_thread_t *p_input;
85 input_clock_t *p_clock;
88 vout_thread_t *p_spu_vout;
92 sout_instance_t *p_sout;
93 sout_packetizer_input_t *p_sout_input;
95 /* Some decoders require already packetized data (ie. not truncated) */
96 decoder_t *p_packetizer;
98 /* Current format in use by the output */
100 audio_format_t audio;
104 bool b_fmt_description;
105 es_format_t fmt_description;
106 vlc_meta_t *p_description;
109 block_fifo_t *p_fifo;
111 /* Lock for communication with decoder thread */
115 /* -- These variables need locking on write(only) -- */
116 aout_instance_t *p_aout;
117 aout_input_t *p_aout_input;
119 vout_thread_t *p_vout;
121 /* -- Theses variables need locking on read *and* write -- */
139 picture_t *p_picture;
140 picture_t **pp_picture_next;
142 subpicture_t *p_subpic;
143 subpicture_t **pp_subpic_next;
145 aout_buffer_t *p_audio;
146 aout_buffer_t **pp_audio_next;
149 block_t **pp_block_next;
160 decoder_t *pp_decoder[4];
167 #define DECODER_MAX_BUFFERING_COUNT (4)
168 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
169 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
171 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
172 * a bogus PTS and won't be displayed */
173 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
176 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
179 /*****************************************************************************
181 *****************************************************************************/
182 picture_t *decoder_NewPicture( decoder_t *p_decoder )
184 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
186 msg_Warn( p_decoder, "can't get output picture" );
189 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
191 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
193 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
195 p_decoder->pf_picture_link( p_decoder, p_picture );
197 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
199 p_decoder->pf_picture_unlink( p_decoder, p_picture );
202 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
204 if( !p_decoder->pf_aout_buffer_new )
206 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
208 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
210 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
213 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
215 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
217 msg_Warn( p_decoder, "can't get output subpicture" );
220 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
222 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
225 /* decoder_GetInputAttachments:
227 int decoder_GetInputAttachments( decoder_t *p_dec,
228 input_attachment_t ***ppp_attachment,
231 if( !p_dec->pf_get_attachments )
234 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
236 /* decoder_GetDisplayDate:
238 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
240 if( !p_dec->pf_get_display_date )
243 return p_dec->pf_get_display_date( p_dec, i_ts );
245 /* decoder_GetDisplayRate:
247 int decoder_GetDisplayRate( decoder_t *p_dec )
249 if( !p_dec->pf_get_display_rate )
250 return INPUT_RATE_DEFAULT;
252 return p_dec->pf_get_display_rate( p_dec );
256 * Spawns a new decoder thread
258 * \param p_input the input thread
259 * \param p_es the es descriptor
260 * \return the spawned decoder object
262 decoder_t *input_DecoderNew( input_thread_t *p_input,
263 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
265 decoder_t *p_dec = NULL;
269 /* If we are in sout mode, search for packetizer module */
272 /* Create the decoder configuration structure */
273 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
276 msg_Err( p_input, "could not create packetizer" );
277 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
278 _("VLC could not open the packetizer module.") );
285 /* Create the decoder configuration structure */
286 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
289 msg_Err( p_input, "could not create decoder" );
290 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
291 _("VLC could not open the decoder module.") );
296 if( !p_dec->p_module )
298 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
300 DeleteDecoder( p_dec );
301 vlc_object_release( p_dec );
305 p_dec->p_owner->p_clock = p_clock;
306 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
308 if( p_dec->fmt_out.i_cat == AUDIO_ES )
309 i_priority = VLC_THREAD_PRIORITY_AUDIO;
311 i_priority = VLC_THREAD_PRIORITY_VIDEO;
313 /* Spawn the decoder thread */
314 if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
316 msg_Err( p_dec, "cannot spawn decoder thread" );
317 module_unneed( p_dec, p_dec->p_module );
318 DeleteDecoder( p_dec );
319 vlc_object_release( p_dec );
327 * Kills a decoder thread and waits until it's finished
329 * \param p_input the input thread
330 * \param p_es the es descriptor
333 void input_DecoderDelete( decoder_t *p_dec )
335 decoder_owner_sys_t *p_owner = p_dec->p_owner;
337 vlc_object_kill( p_dec );
339 /* Make sure we aren't paused/buffering/waiting anymore */
340 vlc_mutex_lock( &p_owner->lock );
341 const bool b_was_paused = p_owner->b_paused;
342 p_owner->b_paused = false;
343 p_owner->b_buffering = false;
344 p_owner->b_flushing = true;
345 vlc_cond_signal( &p_owner->wait );
346 vlc_mutex_unlock( &p_owner->lock );
348 vlc_thread_join( p_dec );
349 p_owner->b_paused = b_was_paused;
351 module_unneed( p_dec, p_dec->p_module );
354 if( p_dec->p_owner->cc.b_supported )
357 for( i = 0; i < 4; i++ )
358 input_DecoderSetCcState( p_dec, false, i );
361 /* Delete decoder configuration */
362 DeleteDecoder( p_dec );
364 /* Delete the decoder */
365 vlc_object_release( p_dec );
369 * Put a block_t in the decoder's fifo.
370 * Thread-safe w.r.t. the decoder. May be a cancellation point.
372 * \param p_dec the decoder object
373 * \param p_block the data block
375 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
377 decoder_owner_sys_t *p_owner = p_dec->p_owner;
379 if( p_owner->p_input->p->b_out_pace_control )
381 /* The fifo is not consummed when buffering and so will
383 * There is no need to lock as b_buffering is never modify
384 * inside decoder thread. */
385 if( !p_owner->b_buffering )
386 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
388 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
390 /* FIXME: ideally we would check the time amount of data
391 * in the FIFO instead of its size. */
392 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
393 "consumed quickly enough), resetting fifo!" );
394 block_FifoEmpty( p_owner->p_fifo );
397 block_FifoPut( p_owner->p_fifo, p_block );
400 bool input_DecoderIsEmpty( decoder_t * p_dec )
402 assert( !p_dec->p_owner->b_buffering );
404 /* FIXME that's not really true */
405 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
408 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
410 decoder_owner_sys_t *p_owner = p_dec->p_owner;
413 vlc_mutex_lock( &p_owner->lock );
414 for( i = 0; i < 4; i++ )
415 pb_present[i] = p_owner->cc.pb_present[i];
416 vlc_mutex_unlock( &p_owner->lock );
418 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
420 decoder_owner_sys_t *p_owner = p_dec->p_owner;
422 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
424 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
429 static const vlc_fourcc_t fcc[4] = {
430 VLC_FOURCC('c', 'c', '1', ' '),
431 VLC_FOURCC('c', 'c', '2', ' '),
432 VLC_FOURCC('c', 'c', '3', ' '),
433 VLC_FOURCC('c', 'c', '4', ' '),
438 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
439 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
442 msg_Err( p_dec, "could not create decoder" );
443 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
444 _("VLC could not open the decoder module.") );
447 else if( !p_cc->p_module )
449 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
450 DeleteDecoder( p_cc );
451 vlc_object_release( p_cc );
454 p_cc->p_owner->p_clock = p_owner->p_clock;
456 vlc_mutex_lock( &p_owner->lock );
457 p_owner->cc.pp_decoder[i_channel] = p_cc;
458 vlc_mutex_unlock( &p_owner->lock );
464 vlc_mutex_lock( &p_owner->lock );
465 p_cc = p_owner->cc.pp_decoder[i_channel];
466 p_owner->cc.pp_decoder[i_channel] = NULL;
467 vlc_mutex_unlock( &p_owner->lock );
471 vlc_object_kill( p_cc );
472 module_unneed( p_cc, p_cc->p_module );
473 DeleteDecoder( p_cc );
474 vlc_object_release( p_cc );
479 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
481 decoder_owner_sys_t *p_owner = p_dec->p_owner;
484 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
487 vlc_mutex_lock( &p_owner->lock );
488 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
489 vlc_mutex_unlock( &p_owner->lock );
493 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
495 decoder_owner_sys_t *p_owner = p_dec->p_owner;
497 vlc_mutex_lock( &p_owner->lock );
499 assert( !p_owner->b_paused || !b_paused );
501 p_owner->b_paused = b_paused;
502 p_owner->pause.i_date = i_date;
503 p_owner->pause.i_ignore = 0;
504 vlc_cond_signal( &p_owner->wait );
506 DecoderOutputChangePause( p_dec, b_paused, i_date );
508 vlc_mutex_unlock( &p_owner->lock );
511 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
513 decoder_owner_sys_t *p_owner = p_dec->p_owner;
515 vlc_mutex_lock( &p_owner->lock );
516 p_owner->i_ts_delay = i_delay;
517 vlc_mutex_unlock( &p_owner->lock );
520 void input_DecoderStartBuffering( decoder_t *p_dec )
522 decoder_owner_sys_t *p_owner = p_dec->p_owner;
524 vlc_mutex_lock( &p_owner->lock );
526 DecoderFlush( p_dec );
528 p_owner->buffer.b_first = true;
529 p_owner->buffer.b_full = false;
530 p_owner->buffer.i_count = 0;
532 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
533 !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
535 p_owner->buffer.p_picture = NULL;
536 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
538 p_owner->buffer.p_subpic = NULL;
539 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
541 p_owner->buffer.p_audio = NULL;
542 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
544 p_owner->buffer.p_block = NULL;
545 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
548 p_owner->b_buffering = true;
550 vlc_cond_signal( &p_owner->wait );
552 vlc_mutex_unlock( &p_owner->lock );
555 void input_DecoderStopBuffering( decoder_t *p_dec )
557 decoder_owner_sys_t *p_owner = p_dec->p_owner;
559 vlc_mutex_lock( &p_owner->lock );
561 p_owner->b_buffering = false;
563 vlc_cond_signal( &p_owner->wait );
565 vlc_mutex_unlock( &p_owner->lock );
568 void input_DecoderWaitBuffering( decoder_t *p_dec )
570 decoder_owner_sys_t *p_owner = p_dec->p_owner;
572 vlc_mutex_lock( &p_owner->lock );
574 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
576 block_FifoWake( p_owner->p_fifo );
577 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
580 vlc_mutex_unlock( &p_owner->lock );
583 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
585 decoder_owner_sys_t *p_owner = p_dec->p_owner;
589 vlc_mutex_lock( &p_owner->lock );
590 if( p_dec->fmt_out.i_cat == VIDEO_ES )
592 if( p_owner->b_paused && p_owner->p_vout )
594 vout_NextPicture( p_owner->p_vout, pi_duration );
595 p_owner->pause.i_ignore++;
596 vlc_cond_signal( &p_owner->wait );
601 /* TODO subtitle should not be flushed */
602 DecoderFlush( p_dec );
604 vlc_mutex_unlock( &p_owner->lock );
607 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
609 decoder_owner_sys_t *p_owner = p_dec->p_owner;
612 vlc_mutex_lock( &p_owner->lock );
613 b_changed = p_owner->b_fmt_description;
617 es_format_Copy( p_fmt, &p_owner->fmt_description );
622 if( p_owner->p_description )
624 *pp_meta = vlc_meta_New();
626 vlc_meta_Merge( *pp_meta, p_owner->p_description );
629 p_owner->b_fmt_description = false;
631 vlc_mutex_unlock( &p_owner->lock );
635 /*****************************************************************************
637 *****************************************************************************/
638 static int DecoderGetInputAttachments( decoder_t *p_dec,
639 input_attachment_t ***ppp_attachment,
642 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
643 ppp_attachment, pi_attachment );
645 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
647 decoder_owner_sys_t *p_owner = p_dec->p_owner;
649 vlc_mutex_lock( &p_owner->lock );
650 if( p_owner->b_buffering || p_owner->b_paused )
652 vlc_mutex_unlock( &p_owner->lock );
654 if( !p_owner->p_clock || !i_ts )
657 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
662 static int DecoderGetDisplayRate( decoder_t *p_dec )
664 decoder_owner_sys_t *p_owner = p_dec->p_owner;
666 if( !p_owner->p_clock )
667 return INPUT_RATE_DEFAULT;
668 return input_clock_GetRate( p_owner->p_clock );
672 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
674 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
675 "VLC probably does not support this sound or video format.",
677 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
678 _("VLC does not support the audio or video format \"%4.4s\". "
679 "Unfortunately there is no way for you to fix this."), (char*)&codec );
684 * Create a decoder object
686 * \param p_input the input thread
687 * \param p_es the es descriptor
688 * \param i_object_type Object type as define in include/vlc_objects.h
689 * \return the decoder object
691 static decoder_t * CreateDecoder( input_thread_t *p_input,
692 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
695 decoder_owner_sys_t *p_owner;
696 es_format_t null_es_format;
700 p_dec = vlc_object_create( p_input, i_object_type );
704 p_dec->pf_decode_audio = NULL;
705 p_dec->pf_decode_video = NULL;
706 p_dec->pf_decode_sub = NULL;
707 p_dec->pf_get_cc = NULL;
708 p_dec->pf_packetize = NULL;
710 /* Initialize the decoder */
711 p_dec->p_module = NULL;
713 memset( &null_es_format, 0, sizeof(es_format_t) );
714 es_format_Copy( &p_dec->fmt_in, fmt );
715 es_format_Copy( &p_dec->fmt_out, &null_es_format );
717 p_dec->p_description = NULL;
719 /* Allocate our private structure for the decoder */
720 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
721 if( p_dec->p_owner == NULL )
723 vlc_object_release( p_dec );
726 p_dec->p_owner->i_preroll_end = -1;
727 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
728 p_dec->p_owner->p_input = p_input;
729 p_dec->p_owner->p_aout = NULL;
730 p_dec->p_owner->p_aout_input = NULL;
731 p_dec->p_owner->p_vout = NULL;
732 p_dec->p_owner->p_spu_vout = NULL;
733 p_dec->p_owner->i_spu_channel = 0;
734 p_dec->p_owner->i_spu_order = 0;
735 p_dec->p_owner->p_sout = p_sout;
736 p_dec->p_owner->p_sout_input = NULL;
737 p_dec->p_owner->p_packetizer = NULL;
740 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
742 free( p_dec->p_owner );
743 vlc_object_release( p_dec );
747 /* Set buffers allocation callbacks for the decoders */
748 p_dec->pf_aout_buffer_new = aout_new_buffer;
749 p_dec->pf_aout_buffer_del = aout_del_buffer;
750 p_dec->pf_vout_buffer_new = vout_new_buffer;
751 p_dec->pf_vout_buffer_del = vout_del_buffer;
752 p_dec->pf_picture_link = vout_link_picture;
753 p_dec->pf_picture_unlink = vout_unlink_picture;
754 p_dec->pf_spu_buffer_new = spu_new_buffer;
755 p_dec->pf_spu_buffer_del = spu_del_buffer;
757 p_dec->pf_get_attachments = DecoderGetInputAttachments;
758 p_dec->pf_get_display_date = DecoderGetDisplayDate;
759 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
761 vlc_object_attach( p_dec, p_input );
763 /* Find a suitable decoder/packetizer module */
764 if( i_object_type == VLC_OBJECT_DECODER )
765 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
767 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
769 /* Check if decoder requires already packetized data */
770 if( i_object_type == VLC_OBJECT_DECODER &&
771 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
773 p_dec->p_owner->p_packetizer =
774 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
775 if( p_dec->p_owner->p_packetizer )
777 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
780 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
783 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
785 p_dec->p_owner->p_packetizer->p_module =
786 module_need( p_dec->p_owner->p_packetizer,
787 "packetizer", "$packetizer", false );
789 if( !p_dec->p_owner->p_packetizer->p_module )
791 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
792 vlc_object_detach( p_dec->p_owner->p_packetizer );
793 vlc_object_release( p_dec->p_owner->p_packetizer );
798 /* Copy ourself the input replay gain */
799 if( fmt->i_cat == AUDIO_ES )
801 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
803 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
805 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
806 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
808 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
810 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
811 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
817 vlc_mutex_init( &p_owner->lock );
818 vlc_cond_init( &p_owner->wait );
820 p_owner->b_fmt_description = false;
821 es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
822 p_owner->p_description = NULL;
824 p_owner->b_paused = false;
825 p_owner->pause.i_date = 0;
826 p_owner->pause.i_ignore = 0;
828 p_owner->b_buffering = false;
829 p_owner->buffer.b_first = true;
830 p_owner->buffer.b_full = false;
831 p_owner->buffer.i_count = 0;
832 p_owner->buffer.p_picture = NULL;
833 p_owner->buffer.p_subpic = NULL;
834 p_owner->buffer.p_audio = NULL;
835 p_owner->buffer.p_block = NULL;
837 p_owner->b_flushing = false;
840 p_owner->cc.b_supported = false;
841 if( i_object_type == VLC_OBJECT_DECODER )
843 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
844 p_owner->cc.b_supported = true;
845 if( p_dec->pf_get_cc )
846 p_owner->cc.b_supported = true;
849 for( i = 0; i < 4; i++ )
851 p_owner->cc.pb_present[i] = false;
852 p_owner->cc.pp_decoder[i] = NULL;
854 p_owner->i_ts_delay = 0;
859 * The decoding main loop
861 * \param p_dec the decoder
863 static void *DecoderThread( vlc_object_t *p_this )
865 decoder_t *p_dec = (decoder_t *)p_this;
866 decoder_owner_sys_t *p_owner = p_dec->p_owner;
868 /* The decoder's main loop */
871 block_t *p_block = block_FifoGet( p_owner->p_fifo );
873 /* Make sure there is no cancellation point other than this one^^.
874 * If you need one, be sure to push cleanup of p_block. */
875 DecoderSignalBuffering( p_dec, p_block == NULL );
879 int canc = vlc_savecancel();
882 DecoderError( p_dec, p_block );
884 DecoderProcess( p_dec, p_block );
886 vlc_restorecancel( canc );
892 static block_t *DecoderBlockFlushNew()
894 block_t *p_null = block_Alloc( 128 );
898 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
899 BLOCK_FLAG_CORRUPTED |
900 BLOCK_FLAG_CORE_FLUSH;
901 memset( p_null->p_buffer, 0, p_null->i_buffer );
906 static void DecoderFlush( decoder_t *p_dec )
908 decoder_owner_sys_t *p_owner = p_dec->p_owner;
910 vlc_assert_locked( &p_owner->lock );
913 block_FifoEmpty( p_owner->p_fifo );
915 /* Monitor for flush end */
916 p_owner->b_flushing = true;
917 vlc_cond_signal( &p_owner->wait );
919 /* Send a special block */
920 block_t *p_null = DecoderBlockFlushNew();
923 input_DecoderDecode( p_dec, p_null );
926 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
927 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
930 static void DecoderSignalFlushed( decoder_t *p_dec )
932 decoder_owner_sys_t *p_owner = p_dec->p_owner;
934 vlc_mutex_lock( &p_owner->lock );
936 if( p_owner->b_flushing )
938 p_owner->b_flushing = false;
939 vlc_cond_signal( &p_owner->wait );
942 vlc_mutex_unlock( &p_owner->lock );
945 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
947 decoder_owner_sys_t *p_owner = p_dec->p_owner;
949 vlc_mutex_lock( &p_owner->lock );
951 if( p_owner->b_buffering )
954 p_owner->buffer.b_full = true;
955 vlc_cond_signal( &p_owner->wait );
958 vlc_mutex_unlock( &p_owner->lock );
961 static bool DecoderIsFlushing( decoder_t *p_dec )
963 decoder_owner_sys_t *p_owner = p_dec->p_owner;
966 vlc_mutex_lock( &p_owner->lock );
968 b_flushing = p_owner->b_flushing;
970 vlc_mutex_unlock( &p_owner->lock );
975 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
977 decoder_owner_sys_t *p_owner = p_dec->p_owner;
979 vlc_assert_locked( &p_owner->lock );
981 while( !p_owner->b_flushing )
983 if( p_owner->b_paused )
985 if( p_owner->b_buffering && !p_owner->buffer.b_full )
987 if( p_owner->pause.i_ignore > 0 )
989 p_owner->pause.i_ignore--;
995 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
998 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
1002 *pb_reject = p_owner->b_flushing;
1005 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
1007 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1009 vlc_assert_locked( &p_owner->lock );
1011 /* XXX only audio and video output have to be paused.
1012 * - for sout it is useless
1013 * - for subs, it is done by the vout
1015 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1017 if( p_owner->p_aout && p_owner->p_aout_input )
1018 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1021 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1023 if( p_owner->p_vout )
1024 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1027 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1029 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1030 *pi_preroll = INT64_MAX;
1031 else if( p->i_pts > 0 )
1032 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1033 else if( p->i_dts > 0 )
1034 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1037 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1039 mtime_t current_date = mdate();
1041 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1042 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
1044 /* ETSI EN 300 472 Annex A : do not take into account the PTS
1045 * for teletext streams. */
1046 return current_date + 400000;
1051 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1052 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1054 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1055 input_clock_t *p_clock = p_owner->p_clock;
1057 vlc_assert_locked( &p_owner->lock );
1059 const mtime_t i_es_delay = p_owner->i_ts_delay;
1063 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1068 *pi_ts0 += i_es_delay;
1069 if( pi_ts1 && *pi_ts1 > 0 )
1070 *pi_ts1 += i_es_delay;
1071 if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
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 +
1085 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1092 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1093 if( pi_ts1 && *pi_ts1 <= 0 )
1099 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1100 int *pi_played_sum, int *pi_lost_sum )
1102 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1103 aout_instance_t *p_aout = p_owner->p_aout;
1104 aout_input_t *p_aout_input = p_owner->p_aout_input;
1107 if( p_audio->start_date <= 0 )
1109 msg_Warn( p_dec, "non-dated audio buffer received" );
1111 aout_BufferFree( p_audio );
1116 vlc_mutex_lock( &p_owner->lock );
1118 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1120 p_audio->p_next = NULL;
1122 *p_owner->buffer.pp_audio_next = p_audio;
1123 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1125 p_owner->buffer.i_count++;
1126 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1127 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1129 p_owner->buffer.b_full = true;
1130 vlc_cond_signal( &p_owner->wait );
1136 bool b_has_more = false;
1138 DecoderWaitUnblock( p_dec, &b_reject );
1140 if( p_owner->b_buffering )
1142 vlc_mutex_unlock( &p_owner->lock );
1147 if( p_owner->buffer.p_audio )
1149 p_audio = p_owner->buffer.p_audio;
1151 p_owner->buffer.p_audio = p_audio->p_next;
1152 p_owner->buffer.i_count--;
1154 b_has_more = p_owner->buffer.p_audio != NULL;
1156 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1160 const bool b_dated = p_audio->start_date > 0;
1161 int i_rate = INPUT_RATE_DEFAULT;
1163 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1164 &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1166 vlc_mutex_unlock( &p_owner->lock );
1168 if( !p_aout || !p_aout_input ||
1169 p_audio->start_date <= 0 ||
1170 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1171 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1174 /* Do not wait against unprotected date */
1175 const mtime_t i_deadline = p_audio->start_date - AOUT_MAX_PREPARE_TIME;
1176 while( !b_reject && i_deadline > mdate() )
1178 vlc_mutex_lock( &p_owner->lock );
1179 if( p_owner->b_flushing || p_dec->b_die )
1182 vlc_mutex_unlock( &p_owner->lock );
1185 vlc_cond_timedwait( &p_owner->wait, &p_owner->lock, i_deadline );
1186 vlc_mutex_unlock( &p_owner->lock );
1191 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1192 *pi_played_sum += 1;
1193 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1198 msg_Warn( p_aout, "received buffer in the future" );
1200 msg_Warn( p_dec, "non-dated audio buffer received" );
1203 aout_BufferFree( p_audio );
1209 vlc_mutex_lock( &p_owner->lock );
1210 if( !p_owner->buffer.p_audio )
1212 vlc_mutex_unlock( &p_owner->lock );
1218 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1220 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1221 input_thread_t *p_input = p_owner->p_input;
1222 aout_buffer_t *p_aout_buf;
1227 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1229 aout_instance_t *p_aout = p_owner->p_aout;
1230 aout_input_t *p_aout_input = p_owner->p_aout_input;
1234 /* It prevent freezing VLC in case of broken decoder */
1235 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1237 block_Release( p_block );
1242 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1244 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1248 if( p_owner->i_preroll_end > 0 )
1250 msg_Dbg( p_dec, "End of audio preroll" );
1251 if( p_owner->p_aout && p_owner->p_aout_input )
1252 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1254 p_owner->i_preroll_end = -1;
1257 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1260 /* Update ugly stat */
1261 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1263 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1265 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1267 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1269 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1272 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1275 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1277 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1283 assert( p_dec_cc->pf_get_cc != NULL );
1285 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1286 if( !p_owner->cc.b_supported )
1289 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1293 vlc_mutex_lock( &p_owner->lock );
1294 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1296 p_owner->cc.pb_present[i] |= pb_present[i];
1297 if( p_owner->cc.pp_decoder[i] )
1301 for( i = 0; i < 4; i++ )
1303 if( !p_owner->cc.pp_decoder[i] )
1306 if( i_cc_decoder > 1 )
1307 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1309 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1312 vlc_mutex_unlock( &p_owner->lock );
1315 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1316 int *pi_played_sum, int *pi_lost_sum )
1318 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1319 vout_thread_t *p_vout = p_owner->p_vout;
1320 bool b_first_buffered;
1322 if( p_picture->date <= 0 )
1324 msg_Warn( p_vout, "non-dated video buffer received" );
1326 vout_DropPicture( p_vout, p_picture );
1331 vlc_mutex_lock( &p_owner->lock );
1333 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1335 p_picture->p_next = NULL;
1337 *p_owner->buffer.pp_picture_next = p_picture;
1338 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1340 p_owner->buffer.i_count++;
1341 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1342 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1344 p_owner->buffer.b_full = true;
1345 vlc_cond_signal( &p_owner->wait );
1348 b_first_buffered = p_owner->buffer.p_picture != NULL;
1350 for( ;; b_first_buffered = false )
1352 bool b_has_more = false;
1356 DecoderWaitUnblock( p_dec, &b_reject );
1358 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1360 vlc_mutex_unlock( &p_owner->lock );
1363 bool b_buffering_first = p_owner->b_buffering;
1366 if( p_owner->buffer.p_picture )
1368 p_picture = p_owner->buffer.p_picture;
1370 p_owner->buffer.p_picture = p_picture->p_next;
1371 p_owner->buffer.i_count--;
1373 b_has_more = p_owner->buffer.p_picture != NULL;
1375 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1379 if( b_buffering_first )
1381 assert( p_owner->buffer.b_first );
1382 assert( !p_owner->buffer.i_count );
1383 msg_Dbg( p_dec, "Received first picture" );
1384 p_owner->buffer.b_first = false;
1385 p_picture->b_force = true;
1388 const bool b_dated = p_picture->date > 0;
1389 int i_rate = INPUT_RATE_DEFAULT;
1390 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1391 &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1393 vlc_mutex_unlock( &p_owner->lock );
1396 if( !p_picture->b_force && p_picture->date <= 0 )
1401 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1403 /* Be sure to not display old picture after our own */
1404 vout_Flush( p_vout, p_picture->date );
1405 p_owner->i_last_rate = i_rate;
1407 vout_DisplayPicture( p_vout, p_picture );
1412 msg_Warn( p_vout, "early picture skipped" );
1414 msg_Warn( p_vout, "non-dated video buffer received" );
1417 vout_DropPicture( p_vout, p_picture );
1421 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1423 *pi_played_sum += i_tmp_display;
1424 *pi_lost_sum += i_tmp_lost;
1426 if( !b_has_more || b_buffering_first )
1429 vlc_mutex_lock( &p_owner->lock );
1430 if( !p_owner->buffer.p_picture )
1432 vlc_mutex_unlock( &p_owner->lock );
1438 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1440 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1441 input_thread_t *p_input = p_owner->p_input;
1445 int i_displayed = 0;
1447 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1449 vout_thread_t *p_vout = p_owner->p_vout;
1452 /* It prevent freezing VLC in case of broken decoder */
1453 vout_DropPicture( p_vout, p_pic );
1455 block_Release( p_block );
1461 if( p_pic->date < p_owner->i_preroll_end )
1463 vout_DropPicture( p_vout, p_pic );
1467 if( p_owner->i_preroll_end > 0 )
1469 msg_Dbg( p_dec, "End of video preroll" );
1471 vout_Flush( p_vout, 1 );
1473 p_owner->i_preroll_end = -1;
1476 if( p_dec->pf_get_cc &&
1477 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1478 DecoderGetCc( p_dec, p_dec );
1480 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1482 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1484 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1486 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1488 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1491 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1494 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1498 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1501 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1502 vout_thread_t *p_vout = p_owner->p_spu_vout;
1505 if( p_subpic->i_start <= 0 )
1507 msg_Warn( p_dec, "non-dated spu buffer received" );
1508 subpicture_Delete( p_subpic );
1513 vlc_mutex_lock( &p_owner->lock );
1515 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1517 p_subpic->p_next = NULL;
1519 *p_owner->buffer.pp_subpic_next = p_subpic;
1520 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1522 p_owner->buffer.i_count++;
1523 /* XXX it is important to be full after the first one */
1524 if( p_owner->buffer.i_count > 0 )
1526 p_owner->buffer.b_full = true;
1527 vlc_cond_signal( &p_owner->wait );
1533 bool b_has_more = false;
1535 DecoderWaitUnblock( p_dec, &b_reject );
1537 if( p_owner->b_buffering )
1539 vlc_mutex_unlock( &p_owner->lock );
1544 if( p_owner->buffer.p_subpic )
1546 p_subpic = p_owner->buffer.p_subpic;
1548 p_owner->buffer.p_subpic = p_subpic->p_next;
1549 p_owner->buffer.i_count--;
1551 b_has_more = p_owner->buffer.p_subpic != NULL;
1553 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1557 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1558 NULL, INT64_MAX, b_telx );
1560 vlc_mutex_unlock( &p_owner->lock );
1563 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1565 subpicture_Delete( p_subpic );
1569 vlc_mutex_lock( &p_owner->lock );
1570 if( !p_owner->buffer.p_subpic )
1572 vlc_mutex_unlock( &p_owner->lock );
1578 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1581 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1583 assert( p_owner->p_clock );
1584 assert( !p_sout_block->p_next );
1586 vlc_mutex_lock( &p_owner->lock );
1588 if( p_owner->b_buffering || p_owner->buffer.p_block )
1590 block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1592 p_owner->buffer.i_count++;
1593 /* XXX it is important to be full after the first one */
1594 if( p_owner->buffer.i_count > 0 )
1596 p_owner->buffer.b_full = true;
1597 vlc_cond_signal( &p_owner->wait );
1603 bool b_has_more = false;
1605 DecoderWaitUnblock( p_dec, &b_reject );
1607 if( p_owner->b_buffering )
1609 vlc_mutex_unlock( &p_owner->lock );
1614 if( p_owner->buffer.p_block )
1616 p_sout_block = p_owner->buffer.p_block;
1618 p_owner->buffer.p_block = p_sout_block->p_next;
1619 p_owner->buffer.i_count--;
1621 b_has_more = p_owner->buffer.p_block != NULL;
1623 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1625 p_sout_block->p_next = NULL;
1627 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1628 &p_sout_block->i_length,
1629 &p_sout_block->i_rate, INT64_MAX, b_telx );
1631 vlc_mutex_unlock( &p_owner->lock );
1634 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1636 block_Release( p_sout_block );
1640 vlc_mutex_lock( &p_owner->lock );
1641 if( !p_owner->buffer.p_block )
1643 vlc_mutex_unlock( &p_owner->lock );
1650 static void DecoderFlushBuffering( decoder_t *p_dec )
1652 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1654 vlc_assert_locked( &p_owner->lock );
1656 while( p_owner->buffer.p_picture )
1658 picture_t *p_picture = p_owner->buffer.p_picture;
1660 p_owner->buffer.p_picture = p_picture->p_next;
1661 p_owner->buffer.i_count--;
1663 if( p_owner->p_vout )
1664 vout_DropPicture( p_owner->p_vout, p_picture );
1666 if( !p_owner->buffer.p_picture )
1667 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1669 while( p_owner->buffer.p_audio )
1671 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1673 p_owner->buffer.p_audio = p_audio->p_next;
1674 p_owner->buffer.i_count--;
1676 aout_BufferFree( p_audio );
1678 if( !p_owner->buffer.p_audio )
1679 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1681 while( p_owner->buffer.p_subpic )
1683 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1685 p_owner->buffer.p_subpic = p_subpic->p_next;
1686 p_owner->buffer.i_count--;
1688 subpicture_Delete( p_subpic );
1690 if( !p_owner->buffer.p_subpic )
1691 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1693 if( p_owner->buffer.p_block )
1695 block_ChainRelease( p_owner->buffer.p_block );
1697 p_owner->buffer.i_count = 0;
1698 p_owner->buffer.p_block = NULL;
1699 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1703 /* This function process a block for sout
1705 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1707 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1708 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1709 block_t *p_sout_block;
1711 while( ( p_sout_block =
1712 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1714 if( !p_owner->p_sout_input )
1716 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1718 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1719 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1720 if( p_dec->fmt_in.psz_language )
1722 if( p_owner->sout.psz_language )
1723 free( p_owner->sout.psz_language );
1724 p_owner->sout.psz_language =
1725 strdup( p_dec->fmt_in.psz_language );
1728 p_owner->p_sout_input =
1729 sout_InputNew( p_owner->p_sout,
1732 if( p_owner->p_sout_input == NULL )
1734 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1735 (char *)&p_owner->sout.i_codec );
1736 p_dec->b_error = true;
1738 while( p_sout_block )
1740 block_t *p_next = p_sout_block->p_next;
1741 block_Release( p_sout_block );
1742 p_sout_block = p_next;
1748 while( p_sout_block )
1750 block_t *p_next = p_sout_block->p_next;
1752 p_sout_block->p_next = NULL;
1754 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1756 p_sout_block = p_next;
1759 /* For now it's enough, as only sout impact on this flag */
1760 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1761 p_owner->p_input->p->b_out_pace_control )
1763 msg_Dbg( p_dec, "switching to sync mode" );
1764 p_owner->p_input->p->b_out_pace_control = false;
1766 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1767 !p_owner->p_input->p->b_out_pace_control )
1769 msg_Dbg( p_dec, "switching to async mode" );
1770 p_owner->p_input->p->b_out_pace_control = true;
1775 /* This function process a video block
1777 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1779 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1781 if( p_owner->p_packetizer )
1783 block_t *p_packetized_block;
1784 decoder_t *p_packetizer = p_owner->p_packetizer;
1786 while( (p_packetized_block =
1787 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1789 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1791 es_format_Clean( &p_dec->fmt_in );
1792 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1794 if( p_packetizer->pf_get_cc )
1795 DecoderGetCc( p_dec, p_packetizer );
1797 while( p_packetized_block )
1799 block_t *p_next = p_packetized_block->p_next;
1800 p_packetized_block->p_next = NULL;
1802 DecoderDecodeVideo( p_dec, p_packetized_block );
1804 p_packetized_block = p_next;
1807 /* The packetizer does not output a block that tell the decoder to flush
1811 block_t *p_null = DecoderBlockFlushNew();
1813 DecoderDecodeVideo( p_dec, p_null );
1818 DecoderDecodeVideo( p_dec, p_block );
1821 if( b_flush && p_owner->p_vout )
1822 vout_Flush( p_owner->p_vout, 1 );
1825 /* This function process a audio block
1827 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1829 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1831 if( p_owner->p_packetizer )
1833 block_t *p_packetized_block;
1834 decoder_t *p_packetizer = p_owner->p_packetizer;
1836 while( (p_packetized_block =
1837 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1839 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1841 es_format_Clean( &p_dec->fmt_in );
1842 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1845 while( p_packetized_block )
1847 block_t *p_next = p_packetized_block->p_next;
1848 p_packetized_block->p_next = NULL;
1850 DecoderDecodeAudio( p_dec, p_packetized_block );
1852 p_packetized_block = p_next;
1855 /* The packetizer does not output a block that tell the decoder to flush
1859 block_t *p_null = DecoderBlockFlushNew();
1861 DecoderDecodeAudio( p_dec, p_null );
1866 DecoderDecodeAudio( p_dec, p_block );
1869 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1870 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1873 /* This function process a subtitle block
1875 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1877 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1878 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1880 input_thread_t *p_input = p_owner->p_input;
1881 vout_thread_t *p_vout;
1882 subpicture_t *p_spu;
1884 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1886 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1887 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1888 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1890 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1891 if( p_vout && p_owner->p_spu_vout == p_vout )
1893 /* Preroll does not work very well with subtitle */
1894 if( p_spu->i_start > 0 &&
1895 p_spu->i_start < p_owner->i_preroll_end &&
1896 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1898 subpicture_Delete( p_spu );
1902 DecoderPlaySpu( p_dec, p_spu, b_telx );
1907 subpicture_Delete( p_spu );
1910 vlc_object_release( p_vout );
1913 if( b_flush && p_owner->p_spu_vout )
1915 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1917 if( p_vout && p_owner->p_spu_vout == p_vout )
1918 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1919 p_owner->i_spu_channel );
1922 vlc_object_release( p_vout );
1927 static void DecoderProcessOnFlush( decoder_t *p_dec )
1929 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1931 vlc_mutex_lock( &p_owner->lock );
1932 DecoderFlushBuffering( p_dec );
1933 vlc_mutex_unlock( &p_owner->lock );
1935 DecoderSignalFlushed( p_dec );
1940 * \param p_dec the decoder object
1941 * \param p_block the block to decode
1942 * \return VLC_SUCCESS or an error code
1944 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1946 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1947 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1949 if( p_block && p_block->i_buffer <= 0 )
1951 assert( !b_flush_request );
1952 block_Release( p_block );
1957 if( vlc_internals( p_dec )->i_object_type == VLC_OBJECT_PACKETIZER )
1960 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1962 DecoderProcessSout( p_dec, p_block );
1967 bool b_flush = false;
1971 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1972 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1974 b_flush = !b_flushing && b_flush_request;
1976 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1979 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1981 DecoderProcessAudio( p_dec, p_block, b_flush );
1983 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1985 DecoderProcessVideo( p_dec, p_block, b_flush );
1987 else if( p_dec->fmt_out.i_cat == SPU_ES )
1989 DecoderProcessSpu( p_dec, p_block, b_flush );
1993 msg_Err( p_dec, "unknown ES format" );
1994 p_dec->b_error = true;
1999 if( b_flush_request )
2000 DecoderProcessOnFlush( p_dec );
2003 static void DecoderError( decoder_t *p_dec, block_t *p_block )
2005 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
2009 block_Release( p_block );
2011 if( b_flush_request )
2012 DecoderProcessOnFlush( p_dec );
2017 * Destroys a decoder object
2019 * \param p_dec the decoder object
2022 static void DeleteDecoder( decoder_t * p_dec )
2024 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2026 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2027 (char*)&p_dec->fmt_in.i_codec,
2028 (unsigned)block_FifoCount( p_owner->p_fifo ) );
2030 /* Free all packets still in the decoder fifo. */
2031 block_FifoEmpty( p_owner->p_fifo );
2032 block_FifoRelease( p_owner->p_fifo );
2035 vlc_mutex_lock( &p_owner->lock );
2036 DecoderFlushBuffering( p_dec );
2037 vlc_mutex_unlock( &p_owner->lock );
2040 if( p_owner->p_aout_input )
2041 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2042 if( p_owner->p_aout )
2044 input_resource_RequestAout( p_owner->p_input->p->p_resource,
2046 input_SendEventAout( p_owner->p_input );
2047 p_owner->p_aout = NULL;
2049 if( p_owner->p_vout )
2051 /* Hack to make sure all the the pictures are freed by the decoder
2052 * and that the vout is not paused anymore */
2053 vout_FixLeaks( p_owner->p_vout, true );
2054 if( p_owner->b_paused )
2055 vout_ChangePause( p_owner->p_vout, false, mdate() );
2058 input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, true );
2059 input_SendEventVout( p_owner->p_input );
2063 if( p_owner->p_sout_input )
2065 sout_InputDelete( p_owner->p_sout_input );
2066 es_format_Clean( &p_owner->sout );
2070 if( p_dec->fmt_out.i_cat == SPU_ES )
2072 vout_thread_t *p_vout;
2074 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2077 if( p_owner->p_spu_vout == p_vout )
2078 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2079 vlc_object_release( p_vout );
2083 es_format_Clean( &p_dec->fmt_in );
2084 es_format_Clean( &p_dec->fmt_out );
2085 if( p_dec->p_description )
2086 vlc_meta_Delete( p_dec->p_description );
2087 es_format_Clean( &p_owner->fmt_description );
2088 if( p_owner->p_description )
2089 vlc_meta_Delete( p_owner->p_description );
2091 if( p_owner->p_packetizer )
2093 module_unneed( p_owner->p_packetizer,
2094 p_owner->p_packetizer->p_module );
2095 es_format_Clean( &p_owner->p_packetizer->fmt_in );
2096 es_format_Clean( &p_owner->p_packetizer->fmt_out );
2097 if( p_owner->p_packetizer->p_description )
2098 vlc_meta_Delete( p_owner->p_packetizer->p_description );
2099 vlc_object_detach( p_owner->p_packetizer );
2100 vlc_object_release( p_owner->p_packetizer );
2103 vlc_cond_destroy( &p_owner->wait );
2104 vlc_mutex_destroy( &p_owner->lock );
2106 vlc_object_detach( p_dec );
2111 /*****************************************************************************
2112 * Buffers allocation callbacks for the decoders
2113 *****************************************************************************/
2114 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2116 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2118 vlc_assert_locked( &p_owner->lock );
2120 p_owner->b_fmt_description = true;
2122 /* Copy es_format */
2123 es_format_Clean( &p_owner->fmt_description );
2124 es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2126 /* Move p_description */
2127 if( p_owner->p_description && p_dec->p_description )
2128 vlc_meta_Delete( p_owner->p_description );
2129 p_owner->p_description = p_dec->p_description;
2130 p_dec->p_description = NULL;
2132 static vout_thread_t *aout_request_vout( void *p_private,
2133 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2135 decoder_t *p_dec = p_private;
2136 input_thread_t *p_input = p_dec->p_owner->p_input;
2138 p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, b_recyle );
2139 input_SendEventVout( p_input );
2144 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2146 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2147 aout_buffer_t *p_buffer;
2149 if( p_owner->p_aout_input != NULL &&
2150 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2151 p_dec->fmt_out.audio.i_original_channels !=
2152 p_owner->audio.i_original_channels ||
2153 p_dec->fmt_out.audio.i_bytes_per_frame !=
2154 p_owner->audio.i_bytes_per_frame ) )
2156 aout_input_t *p_aout_input = p_owner->p_aout_input;
2158 /* Parameters changed, restart the aout */
2159 vlc_mutex_lock( &p_owner->lock );
2161 DecoderFlushBuffering( p_dec );
2163 p_owner->p_aout_input = NULL;
2164 aout_DecDelete( p_owner->p_aout, p_aout_input );
2166 vlc_mutex_unlock( &p_owner->lock );
2169 if( p_owner->p_aout_input == NULL )
2171 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2172 audio_sample_format_t format;
2173 aout_input_t *p_aout_input;
2174 aout_instance_t *p_aout;
2175 aout_request_vout_t request_vout;
2177 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2178 p_owner->audio = p_dec->fmt_out.audio;
2180 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2181 if( i_force_dolby &&
2182 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2183 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2185 if( i_force_dolby == 1 )
2187 format.i_original_channels = format.i_original_channels |
2188 AOUT_CHAN_DOLBYSTEREO;
2190 else /* i_force_dolby == 2 */
2192 format.i_original_channels = format.i_original_channels &
2193 ~AOUT_CHAN_DOLBYSTEREO;
2197 request_vout.pf_request_vout = aout_request_vout;
2198 request_vout.p_private = p_dec;
2200 p_aout = p_owner->p_aout;
2202 p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2203 p_aout_input = aout_DecNew( p_dec, &p_aout,
2204 &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2206 vlc_mutex_lock( &p_owner->lock );
2208 p_owner->p_aout = p_aout;
2209 p_owner->p_aout_input = p_aout_input;
2210 DecoderUpdateFormatLocked( p_dec );
2212 vlc_mutex_unlock( &p_owner->lock );
2214 input_SendEventAout( p_owner->p_input );
2216 if( p_owner->p_aout_input == NULL )
2218 msg_Err( p_dec, "failed to create audio output" );
2219 p_dec->b_error = true;
2222 p_dec->fmt_out.audio.i_bytes_per_frame =
2223 p_owner->audio.i_bytes_per_frame;
2226 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2231 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2233 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2235 aout_DecDeleteBuffer( p_owner->p_aout,
2236 p_owner->p_aout_input, p_buffer );
2240 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2242 static picture_t *vout_new_buffer( decoder_t *p_dec )
2244 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2246 if( p_owner->p_vout == NULL ||
2247 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2248 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2249 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2250 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2252 vout_thread_t *p_vout;
2254 if( !p_dec->fmt_out.video.i_width ||
2255 !p_dec->fmt_out.video.i_height )
2257 /* Can't create a new vout without display size */
2261 if( !p_dec->fmt_out.video.i_visible_width ||
2262 !p_dec->fmt_out.video.i_visible_height )
2264 if( p_dec->fmt_in.video.i_visible_width &&
2265 p_dec->fmt_in.video.i_visible_height )
2267 p_dec->fmt_out.video.i_visible_width =
2268 p_dec->fmt_in.video.i_visible_width;
2269 p_dec->fmt_out.video.i_visible_height =
2270 p_dec->fmt_in.video.i_visible_height;
2274 p_dec->fmt_out.video.i_visible_width =
2275 p_dec->fmt_out.video.i_width;
2276 p_dec->fmt_out.video.i_visible_height =
2277 p_dec->fmt_out.video.i_height;
2281 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2282 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2284 p_dec->fmt_out.video.i_visible_height = 1080;
2285 p_dec->fmt_out.video.i_sar_num *= 135;
2286 p_dec->fmt_out.video.i_sar_den *= 136;
2287 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2290 if( !p_dec->fmt_out.video.i_sar_num ||
2291 !p_dec->fmt_out.video.i_sar_den )
2293 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2294 p_dec->fmt_out.video.i_visible_height;
2296 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2297 p_dec->fmt_out.video.i_visible_width;
2300 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2301 &p_dec->fmt_out.video.i_sar_den,
2302 p_dec->fmt_out.video.i_sar_num,
2303 p_dec->fmt_out.video.i_sar_den, 50000 );
2305 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2306 p_owner->video = p_dec->fmt_out.video;
2308 vlc_mutex_lock( &p_owner->lock );
2310 DecoderFlushBuffering( p_dec );
2312 p_vout = p_owner->p_vout;
2313 p_owner->p_vout = NULL;
2314 vlc_mutex_unlock( &p_owner->lock );
2316 p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2317 p_vout, &p_dec->fmt_out.video, true );
2319 vlc_mutex_lock( &p_owner->lock );
2320 p_owner->p_vout = p_vout;
2322 DecoderUpdateFormatLocked( p_dec );
2324 vlc_mutex_unlock( &p_owner->lock );
2326 input_SendEventVout( p_owner->p_input );
2327 if( p_vout == NULL )
2329 msg_Err( p_dec, "failed to create video output" );
2330 p_dec->b_error = true;
2334 if( p_owner->video.i_rmask )
2335 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2336 if( p_owner->video.i_gmask )
2337 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2338 if( p_owner->video.i_bmask )
2339 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2342 /* Get a new picture
2346 picture_t *p_picture;
2348 if( p_dec->b_die || p_dec->b_error )
2351 /* The video filter chain required that there is always 1 free buffer
2352 * that it will use as temporary one. It will release the temporary
2353 * buffer once its work is done, so this check is safe even if we don't
2354 * lock around both count() and create().
2356 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2358 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2363 if( DecoderIsFlushing( p_dec ) )
2367 DecoderSignalBuffering( p_dec, true );
2369 /* Check the decoder doesn't leak pictures */
2370 vout_FixLeaks( p_owner->p_vout, false );
2372 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2373 msleep( VOUT_OUTMEM_SLEEP );
2377 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2379 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2382 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2384 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2387 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2389 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2392 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2394 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2395 vout_thread_t *p_vout = NULL;
2396 subpicture_t *p_subpic;
2397 int i_attempts = 30;
2399 while( i_attempts-- )
2401 if( p_dec->b_die || p_dec->b_error )
2404 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2408 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2413 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2417 if( p_owner->p_spu_vout != p_vout )
2419 vlc_mutex_lock( &p_owner->lock );
2421 DecoderFlushBuffering( p_dec );
2423 vlc_mutex_unlock( &p_owner->lock );
2425 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2426 &p_owner->i_spu_channel );
2427 p_owner->i_spu_order = 0;
2428 p_owner->p_spu_vout = p_vout;
2431 p_subpic = subpicture_New();
2434 p_subpic->i_channel = p_owner->i_spu_channel;
2435 p_subpic->i_order = p_owner->i_spu_order++;
2436 p_subpic->b_subtitle = true;
2439 vlc_object_release( p_vout );
2444 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2446 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2447 vout_thread_t *p_vout = NULL;
2449 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2450 if( !p_vout || p_owner->p_spu_vout != p_vout )
2453 vlc_object_release( p_vout );
2454 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2458 subpicture_Delete( p_subpic );
2460 vlc_object_release( p_vout );