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>
43 #include <vlc_dialog.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 *, bool,
56 sout_instance_t *p_sout );
57 static void DeleteDecoder( decoder_t * );
59 static void *DecoderThread( vlc_object_t * );
60 static void DecoderProcess( decoder_t *, block_t * );
61 static void DecoderError( decoder_t *p_dec, block_t *p_block );
62 static void DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
63 static void DecoderFlush( decoder_t * );
64 static void DecoderSignalBuffering( decoder_t *, bool );
65 static void DecoderFlushBuffering( decoder_t * );
67 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
69 /* Buffers allocation callbacks for the decoders */
70 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
71 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
73 static picture_t *vout_new_buffer( decoder_t * );
74 static void vout_del_buffer( decoder_t *, picture_t * );
75 static void vout_link_picture( decoder_t *, picture_t * );
76 static void vout_unlink_picture( decoder_t *, picture_t * );
78 static subpicture_t *spu_new_buffer( decoder_t * );
79 static void spu_del_buffer( decoder_t *, subpicture_t * );
81 struct decoder_owner_sys_t
83 int64_t i_preroll_end;
85 input_thread_t *p_input;
86 input_clock_t *p_clock;
89 vout_thread_t *p_spu_vout;
93 sout_instance_t *p_sout;
94 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 aout_instance_t *p_aout;
120 aout_input_t *p_aout_input;
122 vout_thread_t *p_vout;
124 /* -- Theses variables need locking on read *and* write -- */
142 picture_t *p_picture;
143 picture_t **pp_picture_next;
145 subpicture_t *p_subpic;
146 subpicture_t **pp_subpic_next;
148 aout_buffer_t *p_audio;
149 aout_buffer_t **pp_audio_next;
152 block_t **pp_block_next;
163 decoder_t *pp_decoder[4];
170 #define DECODER_MAX_BUFFERING_COUNT (4)
171 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
172 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
174 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
175 * a bogus PTS and won't be displayed */
176 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
179 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
182 /*****************************************************************************
184 *****************************************************************************/
185 picture_t *decoder_NewPicture( decoder_t *p_decoder )
187 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
189 msg_Warn( p_decoder, "can't get output picture" );
192 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
194 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
196 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
198 p_decoder->pf_picture_link( p_decoder, p_picture );
200 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
202 p_decoder->pf_picture_unlink( p_decoder, p_picture );
205 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
207 if( !p_decoder->pf_aout_buffer_new )
209 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
211 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
213 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
216 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
218 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
220 msg_Warn( p_decoder, "can't get output subpicture" );
223 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
225 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
228 /* decoder_GetInputAttachments:
230 int decoder_GetInputAttachments( decoder_t *p_dec,
231 input_attachment_t ***ppp_attachment,
234 if( !p_dec->pf_get_attachments )
237 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
239 /* decoder_GetDisplayDate:
241 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
243 if( !p_dec->pf_get_display_date )
244 return VLC_TS_INVALID;
246 return p_dec->pf_get_display_date( p_dec, i_ts );
248 /* decoder_GetDisplayRate:
250 int decoder_GetDisplayRate( decoder_t *p_dec )
252 if( !p_dec->pf_get_display_rate )
253 return INPUT_RATE_DEFAULT;
255 return p_dec->pf_get_display_rate( p_dec );
259 * Spawns a new decoder thread
261 * \param p_input the input thread
262 * \param p_es the es descriptor
263 * \return the spawned decoder object
265 decoder_t *input_DecoderNew( input_thread_t *p_input,
266 es_format_t *fmt, input_clock_t *p_clock,
267 sout_instance_t *p_sout )
269 decoder_t *p_dec = NULL;
270 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
273 /* Create the decoder configuration structure */
274 p_dec = CreateDecoder( p_input, fmt, p_sout != NULL, p_sout );
277 msg_Err( p_input, "could not create %s", psz_type );
278 dialog_Fatal( p_input, _("Streaming / Transcoding failed"),
279 _("VLC could not open the %s module."),
280 vlc_gettext( psz_type ) );
284 if( !p_dec->p_module )
286 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
288 DeleteDecoder( p_dec );
289 vlc_object_release( p_dec );
293 p_dec->p_owner->p_clock = p_clock;
294 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
296 if( p_dec->fmt_out.i_cat == AUDIO_ES )
297 i_priority = VLC_THREAD_PRIORITY_AUDIO;
299 i_priority = VLC_THREAD_PRIORITY_VIDEO;
301 /* Spawn the decoder thread */
302 if( vlc_thread_create( p_dec, "decoder", DecoderThread, i_priority ) )
304 msg_Err( p_dec, "cannot spawn decoder thread" );
305 module_unneed( p_dec, p_dec->p_module );
306 DeleteDecoder( p_dec );
307 vlc_object_release( p_dec );
315 * Kills a decoder thread and waits until it's finished
317 * \param p_input the input thread
318 * \param p_es the es descriptor
321 void input_DecoderDelete( decoder_t *p_dec )
323 decoder_owner_sys_t *p_owner = p_dec->p_owner;
325 vlc_object_kill( p_dec );
327 /* Make sure we aren't paused/buffering/waiting anymore */
328 vlc_mutex_lock( &p_owner->lock );
329 const bool b_was_paused = p_owner->b_paused;
330 p_owner->b_paused = false;
331 p_owner->b_buffering = false;
332 p_owner->b_flushing = true;
333 vlc_cond_signal( &p_owner->wait_request );
334 vlc_mutex_unlock( &p_owner->lock );
336 vlc_thread_join( p_dec );
337 p_owner->b_paused = b_was_paused;
339 module_unneed( p_dec, p_dec->p_module );
342 if( p_dec->p_owner->cc.b_supported )
345 for( i = 0; i < 4; i++ )
346 input_DecoderSetCcState( p_dec, false, i );
349 /* Delete decoder configuration */
350 DeleteDecoder( p_dec );
352 /* Delete the decoder */
353 vlc_object_release( p_dec );
357 * Put a block_t in the decoder's fifo.
358 * Thread-safe w.r.t. the decoder. May be a cancellation point.
360 * \param p_dec the decoder object
361 * \param p_block the data block
363 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
365 decoder_owner_sys_t *p_owner = p_dec->p_owner;
369 /* The fifo is not consummed when buffering and so will
371 * There is no need to lock as b_buffering is never modify
372 * inside decoder thread. */
373 if( !p_owner->b_buffering )
374 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
376 else if( block_FifoSize( p_owner->p_fifo ) > 400000000 /* 400 MB, ie ~ 50mb/s for 60s */ )
378 /* FIXME: ideally we would check the time amount of data
379 * in the FIFO instead of its size. */
380 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
381 "consumed quickly enough), resetting fifo!" );
382 block_FifoEmpty( p_owner->p_fifo );
385 block_FifoPut( p_owner->p_fifo, p_block );
388 bool input_DecoderIsEmpty( decoder_t * p_dec )
390 assert( !p_dec->p_owner->b_buffering );
392 /* FIXME that's not really true */
393 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
396 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
398 decoder_owner_sys_t *p_owner = p_dec->p_owner;
401 vlc_mutex_lock( &p_owner->lock );
402 for( i = 0; i < 4; i++ )
403 pb_present[i] = p_owner->cc.pb_present[i];
404 vlc_mutex_unlock( &p_owner->lock );
406 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
408 decoder_owner_sys_t *p_owner = p_dec->p_owner;
410 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
412 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
417 static const vlc_fourcc_t fcc[4] = {
418 VLC_FOURCC('c', 'c', '1', ' '),
419 VLC_FOURCC('c', 'c', '2', ' '),
420 VLC_FOURCC('c', 'c', '3', ' '),
421 VLC_FOURCC('c', 'c', '4', ' '),
426 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
427 p_cc = CreateDecoder( p_owner->p_input, &fmt, false, p_owner->p_sout );
430 msg_Err( p_dec, "could not create decoder" );
431 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
432 _("VLC could not open the decoder module.") );
435 else if( !p_cc->p_module )
437 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
438 DeleteDecoder( p_cc );
439 vlc_object_release( p_cc );
442 p_cc->p_owner->p_clock = p_owner->p_clock;
444 vlc_mutex_lock( &p_owner->lock );
445 p_owner->cc.pp_decoder[i_channel] = p_cc;
446 vlc_mutex_unlock( &p_owner->lock );
452 vlc_mutex_lock( &p_owner->lock );
453 p_cc = p_owner->cc.pp_decoder[i_channel];
454 p_owner->cc.pp_decoder[i_channel] = NULL;
455 vlc_mutex_unlock( &p_owner->lock );
459 vlc_object_kill( p_cc );
460 module_unneed( p_cc, p_cc->p_module );
461 DeleteDecoder( p_cc );
462 vlc_object_release( p_cc );
467 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
469 decoder_owner_sys_t *p_owner = p_dec->p_owner;
472 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
475 vlc_mutex_lock( &p_owner->lock );
476 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
477 vlc_mutex_unlock( &p_owner->lock );
481 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
483 decoder_owner_sys_t *p_owner = p_dec->p_owner;
485 vlc_mutex_lock( &p_owner->lock );
487 assert( !p_owner->b_paused || !b_paused );
489 p_owner->b_paused = b_paused;
490 p_owner->pause.i_date = i_date;
491 p_owner->pause.i_ignore = 0;
492 vlc_cond_signal( &p_owner->wait_request );
494 DecoderOutputChangePause( p_dec, b_paused, i_date );
496 vlc_mutex_unlock( &p_owner->lock );
499 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
501 decoder_owner_sys_t *p_owner = p_dec->p_owner;
503 vlc_mutex_lock( &p_owner->lock );
504 p_owner->i_ts_delay = i_delay;
505 vlc_mutex_unlock( &p_owner->lock );
508 void input_DecoderStartBuffering( decoder_t *p_dec )
510 decoder_owner_sys_t *p_owner = p_dec->p_owner;
512 vlc_mutex_lock( &p_owner->lock );
514 DecoderFlush( p_dec );
516 p_owner->buffer.b_first = true;
517 p_owner->buffer.b_full = false;
518 p_owner->buffer.i_count = 0;
520 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
521 !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
523 p_owner->buffer.p_picture = NULL;
524 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
526 p_owner->buffer.p_subpic = NULL;
527 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
529 p_owner->buffer.p_audio = NULL;
530 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
532 p_owner->buffer.p_block = NULL;
533 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
536 p_owner->b_buffering = true;
538 vlc_cond_signal( &p_owner->wait_request );
540 vlc_mutex_unlock( &p_owner->lock );
543 void input_DecoderStopBuffering( 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_buffering = false;
551 vlc_cond_signal( &p_owner->wait_request );
553 vlc_mutex_unlock( &p_owner->lock );
556 void input_DecoderWaitBuffering( decoder_t *p_dec )
558 decoder_owner_sys_t *p_owner = p_dec->p_owner;
560 vlc_mutex_lock( &p_owner->lock );
562 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
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 /*****************************************************************************
632 *****************************************************************************/
633 static int DecoderGetInputAttachments( decoder_t *p_dec,
634 input_attachment_t ***ppp_attachment,
637 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
638 ppp_attachment, pi_attachment );
640 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
642 decoder_owner_sys_t *p_owner = p_dec->p_owner;
644 vlc_mutex_lock( &p_owner->lock );
645 if( p_owner->b_buffering || p_owner->b_paused )
646 i_ts = VLC_TS_INVALID;
647 vlc_mutex_unlock( &p_owner->lock );
649 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
652 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) )
653 return VLC_TS_INVALID;
657 static int DecoderGetDisplayRate( decoder_t *p_dec )
659 decoder_owner_sys_t *p_owner = p_dec->p_owner;
661 if( !p_owner->p_clock )
662 return INPUT_RATE_DEFAULT;
663 return input_clock_GetRate( p_owner->p_clock );
667 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
669 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
670 "VLC probably does not support this sound or video format.",
672 dialog_Fatal( p_dec, _("No suitable decoder module"),
673 _("VLC does not support the audio or video format \"%4.4s\". "
674 "Unfortunately there is no way for you to fix this."),
680 * Create a decoder object
682 * \param p_input the input thread
683 * \param p_es the es descriptor
684 * \param b_packetizer instead of a decoder
685 * \return the decoder object
687 static decoder_t * CreateDecoder( input_thread_t *p_input,
688 es_format_t *fmt, bool b_packetizer,
689 sout_instance_t *p_sout )
692 decoder_owner_sys_t *p_owner;
693 es_format_t null_es_format;
695 p_dec = vlc_object_create( p_input, VLC_OBJECT_DECODER );
699 p_dec->pf_decode_audio = NULL;
700 p_dec->pf_decode_video = NULL;
701 p_dec->pf_decode_sub = NULL;
702 p_dec->pf_get_cc = NULL;
703 p_dec->pf_packetize = NULL;
705 /* Initialize the decoder */
706 p_dec->p_module = NULL;
708 memset( &null_es_format, 0, sizeof(es_format_t) );
709 es_format_Copy( &p_dec->fmt_in, fmt );
710 es_format_Copy( &p_dec->fmt_out, &null_es_format );
712 p_dec->p_description = NULL;
714 /* Allocate our private structure for the decoder */
715 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
716 if( p_dec->p_owner == NULL )
718 vlc_object_release( p_dec );
721 p_dec->p_owner->i_preroll_end = VLC_TS_INVALID;
722 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
723 p_dec->p_owner->p_input = p_input;
724 p_dec->p_owner->p_aout = NULL;
725 p_dec->p_owner->p_aout_input = NULL;
726 p_dec->p_owner->p_vout = NULL;
727 p_dec->p_owner->p_spu_vout = NULL;
728 p_dec->p_owner->i_spu_channel = 0;
729 p_dec->p_owner->i_spu_order = 0;
730 p_dec->p_owner->p_sout = p_sout;
731 p_dec->p_owner->p_sout_input = NULL;
732 p_dec->p_owner->p_packetizer = NULL;
733 p_dec->p_owner->b_packetizer = b_packetizer;
736 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
738 free( p_dec->p_owner );
739 vlc_object_release( p_dec );
743 /* Set buffers allocation callbacks for the decoders */
744 p_dec->pf_aout_buffer_new = aout_new_buffer;
745 p_dec->pf_aout_buffer_del = aout_del_buffer;
746 p_dec->pf_vout_buffer_new = vout_new_buffer;
747 p_dec->pf_vout_buffer_del = vout_del_buffer;
748 p_dec->pf_picture_link = vout_link_picture;
749 p_dec->pf_picture_unlink = vout_unlink_picture;
750 p_dec->pf_spu_buffer_new = spu_new_buffer;
751 p_dec->pf_spu_buffer_del = spu_del_buffer;
753 p_dec->pf_get_attachments = DecoderGetInputAttachments;
754 p_dec->pf_get_display_date = DecoderGetDisplayDate;
755 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
757 vlc_object_attach( p_dec, p_input );
759 /* Find a suitable decoder/packetizer module */
761 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
763 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
765 /* Check if decoder requires already packetized data */
767 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
769 p_dec->p_owner->p_packetizer =
770 vlc_object_create( p_input, VLC_OBJECT_DECODER );
771 if( p_dec->p_owner->p_packetizer )
773 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
776 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
779 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
781 p_dec->p_owner->p_packetizer->p_module =
782 module_need( p_dec->p_owner->p_packetizer,
783 "packetizer", "$packetizer", false );
785 if( !p_dec->p_owner->p_packetizer->p_module )
787 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
788 vlc_object_detach( p_dec->p_owner->p_packetizer );
789 vlc_object_release( p_dec->p_owner->p_packetizer );
794 /* Copy ourself the input replay gain */
795 if( fmt->i_cat == AUDIO_ES )
797 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
799 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
801 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
802 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
804 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
806 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
807 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
813 vlc_mutex_init( &p_owner->lock );
814 vlc_cond_init( &p_owner->wait_request );
815 vlc_cond_init( &p_owner->wait_acknowledge );
817 p_owner->b_fmt_description = false;
818 es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
819 p_owner->p_description = NULL;
821 p_owner->b_paused = false;
822 p_owner->pause.i_date = VLC_TS_INVALID;
823 p_owner->pause.i_ignore = 0;
825 p_owner->b_buffering = false;
826 p_owner->buffer.b_first = true;
827 p_owner->buffer.b_full = false;
828 p_owner->buffer.i_count = 0;
829 p_owner->buffer.p_picture = NULL;
830 p_owner->buffer.p_subpic = NULL;
831 p_owner->buffer.p_audio = NULL;
832 p_owner->buffer.p_block = NULL;
834 p_owner->b_flushing = false;
837 p_owner->cc.b_supported = false;
840 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
841 p_owner->cc.b_supported = true;
842 if( p_dec->pf_get_cc )
843 p_owner->cc.b_supported = true;
846 for( unsigned i = 0; i < 4; i++ )
848 p_owner->cc.pb_present[i] = false;
849 p_owner->cc.pp_decoder[i] = NULL;
851 p_owner->i_ts_delay = 0;
856 * The decoding main loop
858 * \param p_dec the decoder
860 static void *DecoderThread( vlc_object_t *p_this )
862 decoder_t *p_dec = (decoder_t *)p_this;
863 decoder_owner_sys_t *p_owner = p_dec->p_owner;
865 /* The decoder's main loop */
868 block_t *p_block = block_FifoGet( p_owner->p_fifo );
870 /* Make sure there is no cancellation point other than this one^^.
871 * If you need one, be sure to push cleanup of p_block. */
872 DecoderSignalBuffering( p_dec, p_block == NULL );
876 int canc = vlc_savecancel();
879 DecoderError( p_dec, p_block );
881 DecoderProcess( p_dec, p_block );
883 vlc_restorecancel( canc );
889 static block_t *DecoderBlockFlushNew()
891 block_t *p_null = block_Alloc( 128 );
895 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
896 BLOCK_FLAG_CORRUPTED |
897 BLOCK_FLAG_CORE_FLUSH;
898 memset( p_null->p_buffer, 0, p_null->i_buffer );
903 static void DecoderFlush( decoder_t *p_dec )
905 decoder_owner_sys_t *p_owner = p_dec->p_owner;
907 vlc_assert_locked( &p_owner->lock );
910 block_FifoEmpty( p_owner->p_fifo );
912 /* Monitor for flush end */
913 p_owner->b_flushing = true;
914 vlc_cond_signal( &p_owner->wait_request );
916 /* Send a special block */
917 block_t *p_null = DecoderBlockFlushNew();
920 input_DecoderDecode( p_dec, p_null, false );
923 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
924 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
927 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
929 decoder_owner_sys_t *p_owner = p_dec->p_owner;
931 vlc_mutex_lock( &p_owner->lock );
933 if( p_owner->b_buffering )
936 p_owner->buffer.b_full = true;
937 vlc_cond_signal( &p_owner->wait_acknowledge );
940 vlc_mutex_unlock( &p_owner->lock );
943 static bool DecoderIsFlushing( decoder_t *p_dec )
945 decoder_owner_sys_t *p_owner = p_dec->p_owner;
948 vlc_mutex_lock( &p_owner->lock );
950 b_flushing = p_owner->b_flushing;
952 vlc_mutex_unlock( &p_owner->lock );
957 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
959 decoder_owner_sys_t *p_owner = p_dec->p_owner;
961 vlc_assert_locked( &p_owner->lock );
963 while( !p_owner->b_flushing )
965 if( p_owner->b_paused )
967 if( p_owner->b_buffering && !p_owner->buffer.b_full )
969 if( p_owner->pause.i_ignore > 0 )
971 p_owner->pause.i_ignore--;
977 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
980 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
984 *pb_reject = p_owner->b_flushing;
987 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
989 decoder_owner_sys_t *p_owner = p_dec->p_owner;
991 vlc_assert_locked( &p_owner->lock );
993 /* XXX only audio and video output have to be paused.
994 * - for sout it is useless
995 * - for subs, it is done by the vout
997 if( p_dec->fmt_out.i_cat == AUDIO_ES )
999 if( p_owner->p_aout && p_owner->p_aout_input )
1000 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
1003 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1005 if( p_owner->p_vout )
1006 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
1009 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1011 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1012 *pi_preroll = INT64_MAX;
1013 else if( p->i_dts > VLC_TS_INVALID )
1014 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1015 else if( p->i_pts > VLC_TS_INVALID )
1016 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1019 static mtime_t DecoderTeletextFixTs( mtime_t i_ts )
1021 mtime_t current_date = mdate();
1023 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
1024 if( i_ts <= VLC_TS_INVALID || i_ts > current_date + 10000000 || i_ts < current_date )
1026 /* ETSI EN 300 472 Annex A : do not take into account the PTS
1027 * for teletext streams. */
1028 return current_date + 400000;
1033 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1034 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound, bool b_telx )
1036 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1037 input_clock_t *p_clock = p_owner->p_clock;
1039 vlc_assert_locked( &p_owner->lock );
1041 const mtime_t i_es_delay = p_owner->i_ts_delay;
1045 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1048 if( *pi_ts0 > VLC_TS_INVALID )
1050 *pi_ts0 += i_es_delay;
1051 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1052 *pi_ts1 += i_es_delay;
1053 if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) )
1054 *pi_ts0 = VLC_TS_INVALID;
1058 i_rate = input_clock_GetRate( p_clock );
1061 /* Do not create ephemere data because of rounding errors */
1062 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1066 *pi_duration = ( *pi_duration * i_rate +
1067 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1074 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0 );
1075 if( pi_ts1 && *pi_ts1 <= VLC_TS_INVALID )
1081 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1082 int *pi_played_sum, int *pi_lost_sum )
1084 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1085 aout_instance_t *p_aout = p_owner->p_aout;
1086 aout_input_t *p_aout_input = p_owner->p_aout_input;
1089 if( p_audio->start_date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1091 msg_Warn( p_dec, "non-dated audio buffer received" );
1093 aout_BufferFree( p_audio );
1098 vlc_mutex_lock( &p_owner->lock );
1100 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1102 p_audio->p_next = NULL;
1104 *p_owner->buffer.pp_audio_next = p_audio;
1105 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1107 p_owner->buffer.i_count++;
1108 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1109 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1111 p_owner->buffer.b_full = true;
1112 vlc_cond_signal( &p_owner->wait_acknowledge );
1118 bool b_has_more = false;
1120 DecoderWaitUnblock( p_dec, &b_reject );
1122 if( p_owner->b_buffering )
1124 vlc_mutex_unlock( &p_owner->lock );
1129 if( p_owner->buffer.p_audio )
1131 p_audio = p_owner->buffer.p_audio;
1133 p_owner->buffer.p_audio = p_audio->p_next;
1134 p_owner->buffer.i_count--;
1136 b_has_more = p_owner->buffer.p_audio != NULL;
1138 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1142 const bool b_dated = p_audio->start_date > VLC_TS_INVALID;
1143 int i_rate = INPUT_RATE_DEFAULT;
1145 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1146 &i_rate, AOUT_MAX_ADVANCE_TIME, false );
1148 vlc_mutex_unlock( &p_owner->lock );
1150 if( !p_aout || !p_aout_input ||
1151 p_audio->start_date <= VLC_TS_INVALID ||
1152 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1153 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1156 /* Do not wait against unprotected date */
1157 const mtime_t i_deadline = p_audio->start_date - AOUT_MAX_PREPARE_TIME;
1158 while( !b_reject && i_deadline > mdate() )
1160 vlc_mutex_lock( &p_owner->lock );
1161 if( p_owner->b_flushing || p_dec->b_die )
1164 vlc_mutex_unlock( &p_owner->lock );
1167 vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock, i_deadline );
1168 vlc_mutex_unlock( &p_owner->lock );
1173 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1174 *pi_played_sum += 1;
1175 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1180 msg_Warn( p_aout, "received buffer in the future" );
1182 msg_Warn( p_dec, "non-dated audio buffer received" );
1185 aout_BufferFree( p_audio );
1191 vlc_mutex_lock( &p_owner->lock );
1192 if( !p_owner->buffer.p_audio )
1194 vlc_mutex_unlock( &p_owner->lock );
1200 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1202 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1203 input_thread_t *p_input = p_owner->p_input;
1204 aout_buffer_t *p_aout_buf;
1209 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1211 aout_instance_t *p_aout = p_owner->p_aout;
1212 aout_input_t *p_aout_input = p_owner->p_aout_input;
1216 /* It prevent freezing VLC in case of broken decoder */
1217 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1219 block_Release( p_block );
1224 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1225 p_aout_buf->start_date < p_owner->i_preroll_end )
1227 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1231 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1233 msg_Dbg( p_dec, "End of audio preroll" );
1234 if( p_owner->p_aout && p_owner->p_aout_input )
1235 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1237 p_owner->i_preroll_end = VLC_TS_INVALID;
1240 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1243 /* Update ugly stat */
1244 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1246 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1248 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1250 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1252 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1255 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1258 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1260 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1263 bool b_processed = false;
1267 assert( p_dec_cc->pf_get_cc != NULL );
1269 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1270 if( !p_owner->cc.b_supported )
1273 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1277 vlc_mutex_lock( &p_owner->lock );
1278 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1280 p_owner->cc.pb_present[i] |= pb_present[i];
1281 if( p_owner->cc.pp_decoder[i] )
1285 for( i = 0; i < 4; i++ )
1287 if( !p_owner->cc.pp_decoder[i] )
1290 if( i_cc_decoder > 1 )
1291 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1293 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1297 vlc_mutex_unlock( &p_owner->lock );
1300 block_Release( p_cc );
1303 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1304 int *pi_played_sum, int *pi_lost_sum )
1306 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1307 vout_thread_t *p_vout = p_owner->p_vout;
1308 bool b_first_buffered;
1310 if( p_picture->date <= VLC_TS_INVALID )
1312 msg_Warn( p_vout, "non-dated video buffer received" );
1314 vout_DropPicture( p_vout, p_picture );
1319 vlc_mutex_lock( &p_owner->lock );
1321 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1323 p_picture->p_next = NULL;
1325 *p_owner->buffer.pp_picture_next = p_picture;
1326 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1328 p_owner->buffer.i_count++;
1329 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1330 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1332 p_owner->buffer.b_full = true;
1333 vlc_cond_signal( &p_owner->wait_acknowledge );
1336 b_first_buffered = p_owner->buffer.p_picture != NULL;
1338 for( ;; b_first_buffered = false )
1340 bool b_has_more = false;
1344 DecoderWaitUnblock( p_dec, &b_reject );
1346 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1348 vlc_mutex_unlock( &p_owner->lock );
1351 bool b_buffering_first = p_owner->b_buffering;
1354 if( p_owner->buffer.p_picture )
1356 p_picture = p_owner->buffer.p_picture;
1358 p_owner->buffer.p_picture = p_picture->p_next;
1359 p_owner->buffer.i_count--;
1361 b_has_more = p_owner->buffer.p_picture != NULL;
1363 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1367 if( b_buffering_first )
1369 assert( p_owner->buffer.b_first );
1370 assert( !p_owner->buffer.i_count );
1371 msg_Dbg( p_dec, "Received first picture" );
1372 p_owner->buffer.b_first = false;
1373 p_picture->b_force = true;
1376 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1377 int i_rate = INPUT_RATE_DEFAULT;
1378 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1379 &i_rate, DECODER_BOGUS_VIDEO_DELAY, false );
1381 vlc_mutex_unlock( &p_owner->lock );
1384 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1389 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1391 /* Be sure to not display old picture after our own */
1392 vout_Flush( p_vout, p_picture->date );
1393 p_owner->i_last_rate = i_rate;
1395 vout_DisplayPicture( p_vout, p_picture );
1400 msg_Warn( p_vout, "early picture skipped" );
1402 msg_Warn( p_vout, "non-dated video buffer received" );
1405 vout_DropPicture( p_vout, p_picture );
1409 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1411 *pi_played_sum += i_tmp_display;
1412 *pi_lost_sum += i_tmp_lost;
1414 if( !b_has_more || b_buffering_first )
1417 vlc_mutex_lock( &p_owner->lock );
1418 if( !p_owner->buffer.p_picture )
1420 vlc_mutex_unlock( &p_owner->lock );
1426 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1428 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1429 input_thread_t *p_input = p_owner->p_input;
1433 int i_displayed = 0;
1435 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1437 vout_thread_t *p_vout = p_owner->p_vout;
1440 /* It prevent freezing VLC in case of broken decoder */
1441 vout_DropPicture( p_vout, p_pic );
1443 block_Release( p_block );
1449 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1451 vout_DropPicture( p_vout, p_pic );
1455 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1457 msg_Dbg( p_dec, "End of video preroll" );
1459 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1461 p_owner->i_preroll_end = VLC_TS_INVALID;
1464 if( p_dec->pf_get_cc &&
1465 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1466 DecoderGetCc( p_dec, p_dec );
1468 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1470 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1472 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1474 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1476 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1479 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1482 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1486 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1489 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1490 vout_thread_t *p_vout = p_owner->p_spu_vout;
1493 if( p_subpic->i_start <= VLC_TS_INVALID )
1495 msg_Warn( p_dec, "non-dated spu buffer received" );
1496 subpicture_Delete( p_subpic );
1501 vlc_mutex_lock( &p_owner->lock );
1503 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1505 p_subpic->p_next = NULL;
1507 *p_owner->buffer.pp_subpic_next = p_subpic;
1508 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1510 p_owner->buffer.i_count++;
1511 /* XXX it is important to be full after the first one */
1512 if( p_owner->buffer.i_count > 0 )
1514 p_owner->buffer.b_full = true;
1515 vlc_cond_signal( &p_owner->wait_acknowledge );
1521 bool b_has_more = false;
1523 DecoderWaitUnblock( p_dec, &b_reject );
1525 if( p_owner->b_buffering )
1527 vlc_mutex_unlock( &p_owner->lock );
1532 if( p_owner->buffer.p_subpic )
1534 p_subpic = p_owner->buffer.p_subpic;
1536 p_owner->buffer.p_subpic = p_subpic->p_next;
1537 p_owner->buffer.i_count--;
1539 b_has_more = p_owner->buffer.p_subpic != NULL;
1541 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1545 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1546 NULL, INT64_MAX, b_telx );
1548 vlc_mutex_unlock( &p_owner->lock );
1551 spu_DisplaySubpicture( vout_GetSpu( p_vout ), p_subpic );
1553 subpicture_Delete( p_subpic );
1557 vlc_mutex_lock( &p_owner->lock );
1558 if( !p_owner->buffer.p_subpic )
1560 vlc_mutex_unlock( &p_owner->lock );
1566 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1569 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1571 assert( p_owner->p_clock );
1572 assert( !p_sout_block->p_next );
1574 vlc_mutex_lock( &p_owner->lock );
1576 if( p_owner->b_buffering || p_owner->buffer.p_block )
1578 block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1580 p_owner->buffer.i_count++;
1581 /* XXX it is important to be full after the first one */
1582 if( p_owner->buffer.i_count > 0 )
1584 p_owner->buffer.b_full = true;
1585 vlc_cond_signal( &p_owner->wait_acknowledge );
1591 bool b_has_more = false;
1593 DecoderWaitUnblock( p_dec, &b_reject );
1595 if( p_owner->b_buffering )
1597 vlc_mutex_unlock( &p_owner->lock );
1602 if( p_owner->buffer.p_block )
1604 p_sout_block = p_owner->buffer.p_block;
1606 p_owner->buffer.p_block = p_sout_block->p_next;
1607 p_owner->buffer.i_count--;
1609 b_has_more = p_owner->buffer.p_block != NULL;
1611 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1613 p_sout_block->p_next = NULL;
1615 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1616 &p_sout_block->i_length,
1617 &p_sout_block->i_rate, INT64_MAX, b_telx );
1619 vlc_mutex_unlock( &p_owner->lock );
1622 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block ); // FIXME --VLC_TS_INVALID inspect stream_output/*
1624 block_Release( p_sout_block );
1628 vlc_mutex_lock( &p_owner->lock );
1629 if( !p_owner->buffer.p_block )
1631 vlc_mutex_unlock( &p_owner->lock );
1638 static void DecoderFlushBuffering( decoder_t *p_dec )
1640 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1642 vlc_assert_locked( &p_owner->lock );
1644 while( p_owner->buffer.p_picture )
1646 picture_t *p_picture = p_owner->buffer.p_picture;
1648 p_owner->buffer.p_picture = p_picture->p_next;
1649 p_owner->buffer.i_count--;
1651 if( p_owner->p_vout )
1652 vout_DropPicture( p_owner->p_vout, p_picture );
1654 if( !p_owner->buffer.p_picture )
1655 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1657 while( p_owner->buffer.p_audio )
1659 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1661 p_owner->buffer.p_audio = p_audio->p_next;
1662 p_owner->buffer.i_count--;
1664 aout_BufferFree( p_audio );
1666 if( !p_owner->buffer.p_audio )
1667 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1669 while( p_owner->buffer.p_subpic )
1671 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1673 p_owner->buffer.p_subpic = p_subpic->p_next;
1674 p_owner->buffer.i_count--;
1676 subpicture_Delete( p_subpic );
1678 if( !p_owner->buffer.p_subpic )
1679 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1681 if( p_owner->buffer.p_block )
1683 block_ChainRelease( p_owner->buffer.p_block );
1685 p_owner->buffer.i_count = 0;
1686 p_owner->buffer.p_block = NULL;
1687 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1691 /* This function process a block for sout
1693 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1695 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1696 const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1697 block_t *p_sout_block;
1699 while( ( p_sout_block =
1700 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1702 if( !p_owner->p_sout_input )
1704 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1706 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1707 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1708 if( p_dec->fmt_in.psz_language )
1710 if( p_owner->sout.psz_language )
1711 free( p_owner->sout.psz_language );
1712 p_owner->sout.psz_language =
1713 strdup( p_dec->fmt_in.psz_language );
1716 p_owner->p_sout_input =
1717 sout_InputNew( p_owner->p_sout,
1720 if( p_owner->p_sout_input == NULL )
1722 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1723 (char *)&p_owner->sout.i_codec );
1724 p_dec->b_error = true;
1726 while( p_sout_block )
1728 block_t *p_next = p_sout_block->p_next;
1729 block_Release( p_sout_block );
1730 p_sout_block = p_next;
1736 while( p_sout_block )
1738 block_t *p_next = p_sout_block->p_next;
1740 p_sout_block->p_next = NULL;
1742 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1744 p_sout_block = p_next;
1749 /* This function process a video block
1751 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1753 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1755 if( p_owner->p_packetizer )
1757 block_t *p_packetized_block;
1758 decoder_t *p_packetizer = p_owner->p_packetizer;
1760 while( (p_packetized_block =
1761 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1763 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1765 es_format_Clean( &p_dec->fmt_in );
1766 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1768 if( p_packetizer->pf_get_cc )
1769 DecoderGetCc( p_dec, p_packetizer );
1771 while( p_packetized_block )
1773 block_t *p_next = p_packetized_block->p_next;
1774 p_packetized_block->p_next = NULL;
1776 DecoderDecodeVideo( p_dec, p_packetized_block );
1778 p_packetized_block = p_next;
1781 /* The packetizer does not output a block that tell the decoder to flush
1785 block_t *p_null = DecoderBlockFlushNew();
1787 DecoderDecodeVideo( p_dec, p_null );
1792 DecoderDecodeVideo( p_dec, p_block );
1795 if( b_flush && p_owner->p_vout )
1796 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1799 /* This function process a audio block
1801 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1803 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1805 if( p_owner->p_packetizer )
1807 block_t *p_packetized_block;
1808 decoder_t *p_packetizer = p_owner->p_packetizer;
1810 while( (p_packetized_block =
1811 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1813 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1815 es_format_Clean( &p_dec->fmt_in );
1816 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1819 while( p_packetized_block )
1821 block_t *p_next = p_packetized_block->p_next;
1822 p_packetized_block->p_next = NULL;
1824 DecoderDecodeAudio( p_dec, p_packetized_block );
1826 p_packetized_block = p_next;
1829 /* The packetizer does not output a block that tell the decoder to flush
1833 block_t *p_null = DecoderBlockFlushNew();
1835 DecoderDecodeAudio( p_dec, p_null );
1840 DecoderDecodeAudio( p_dec, p_block );
1843 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1844 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1847 /* This function process a subtitle block
1849 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1851 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1852 const bool b_telx = p_dec->fmt_in.i_codec == VLC_CODEC_TELETEXT;
1854 input_thread_t *p_input = p_owner->p_input;
1855 vout_thread_t *p_vout;
1856 subpicture_t *p_spu;
1858 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1860 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1861 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1862 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1864 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1865 if( p_vout && p_owner->p_spu_vout == p_vout )
1867 /* Preroll does not work very well with subtitle */
1868 if( p_spu->i_start > VLC_TS_INVALID &&
1869 p_spu->i_start < p_owner->i_preroll_end &&
1870 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1872 subpicture_Delete( p_spu );
1876 DecoderPlaySpu( p_dec, p_spu, b_telx );
1881 subpicture_Delete( p_spu );
1884 vlc_object_release( p_vout );
1887 if( b_flush && p_owner->p_spu_vout )
1889 p_vout = input_resource_HoldVout( p_input->p->p_resource );
1891 if( p_vout && p_owner->p_spu_vout == p_vout )
1892 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR,
1893 p_owner->i_spu_channel );
1896 vlc_object_release( p_vout );
1901 static void DecoderProcessOnFlush( decoder_t *p_dec )
1903 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1905 vlc_mutex_lock( &p_owner->lock );
1906 DecoderFlushBuffering( p_dec );
1908 if( p_owner->b_flushing )
1910 p_owner->b_flushing = false;
1911 vlc_cond_signal( &p_owner->wait_acknowledge );
1913 vlc_mutex_unlock( &p_owner->lock );
1919 * \param p_dec the decoder object
1920 * \param p_block the block to decode
1921 * \return VLC_SUCCESS or an error code
1923 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1925 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1926 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1928 if( p_block && p_block->i_buffer <= 0 )
1930 assert( !b_flush_request );
1931 block_Release( p_block );
1936 if( p_owner->b_packetizer )
1939 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1941 DecoderProcessSout( p_dec, p_block );
1946 bool b_flush = false;
1950 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1951 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1953 b_flush = !b_flushing && b_flush_request;
1955 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1958 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1960 DecoderProcessAudio( p_dec, p_block, b_flush );
1962 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1964 DecoderProcessVideo( p_dec, p_block, b_flush );
1966 else if( p_dec->fmt_out.i_cat == SPU_ES )
1968 DecoderProcessSpu( p_dec, p_block, b_flush );
1972 msg_Err( p_dec, "unknown ES format" );
1973 p_dec->b_error = true;
1978 if( b_flush_request )
1979 DecoderProcessOnFlush( p_dec );
1982 static void DecoderError( decoder_t *p_dec, block_t *p_block )
1984 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1988 block_Release( p_block );
1990 if( b_flush_request )
1991 DecoderProcessOnFlush( p_dec );
1996 * Destroys a decoder object
1998 * \param p_dec the decoder object
2001 static void DeleteDecoder( decoder_t * p_dec )
2003 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2005 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
2006 (char*)&p_dec->fmt_in.i_codec,
2007 (unsigned)block_FifoCount( p_owner->p_fifo ) );
2009 /* Free all packets still in the decoder fifo. */
2010 block_FifoEmpty( p_owner->p_fifo );
2011 block_FifoRelease( p_owner->p_fifo );
2014 vlc_mutex_lock( &p_owner->lock );
2015 DecoderFlushBuffering( p_dec );
2016 vlc_mutex_unlock( &p_owner->lock );
2019 if( p_owner->p_aout_input )
2020 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
2021 if( p_owner->p_aout )
2023 input_resource_RequestAout( p_owner->p_input->p->p_resource,
2025 input_SendEventAout( p_owner->p_input );
2026 p_owner->p_aout = NULL;
2028 if( p_owner->p_vout )
2030 /* Hack to make sure all the the pictures are freed by the decoder
2031 * and that the vout is not paused anymore */
2032 vout_FixLeaks( p_owner->p_vout, true );
2033 if( p_owner->b_paused )
2034 vout_ChangePause( p_owner->p_vout, false, mdate() );
2037 input_resource_RequestVout( p_owner->p_input->p->p_resource, p_owner->p_vout, NULL, true );
2038 input_SendEventVout( p_owner->p_input );
2042 if( p_owner->p_sout_input )
2044 sout_InputDelete( p_owner->p_sout_input );
2045 es_format_Clean( &p_owner->sout );
2049 if( p_dec->fmt_out.i_cat == SPU_ES )
2051 vout_thread_t *p_vout;
2053 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2056 if( p_owner->p_spu_vout == p_vout )
2057 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
2058 vlc_object_release( p_vout );
2062 es_format_Clean( &p_dec->fmt_in );
2063 es_format_Clean( &p_dec->fmt_out );
2064 if( p_dec->p_description )
2065 vlc_meta_Delete( p_dec->p_description );
2066 es_format_Clean( &p_owner->fmt_description );
2067 if( p_owner->p_description )
2068 vlc_meta_Delete( p_owner->p_description );
2070 if( p_owner->p_packetizer )
2072 module_unneed( p_owner->p_packetizer,
2073 p_owner->p_packetizer->p_module );
2074 es_format_Clean( &p_owner->p_packetizer->fmt_in );
2075 es_format_Clean( &p_owner->p_packetizer->fmt_out );
2076 if( p_owner->p_packetizer->p_description )
2077 vlc_meta_Delete( p_owner->p_packetizer->p_description );
2078 vlc_object_detach( p_owner->p_packetizer );
2079 vlc_object_release( p_owner->p_packetizer );
2082 vlc_cond_destroy( &p_owner->wait_acknowledge );
2083 vlc_cond_destroy( &p_owner->wait_request );
2084 vlc_mutex_destroy( &p_owner->lock );
2086 vlc_object_detach( p_dec );
2091 /*****************************************************************************
2092 * Buffers allocation callbacks for the decoders
2093 *****************************************************************************/
2094 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
2096 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2098 vlc_assert_locked( &p_owner->lock );
2100 p_owner->b_fmt_description = true;
2102 /* Copy es_format */
2103 es_format_Clean( &p_owner->fmt_description );
2104 es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
2106 /* Move p_description */
2107 if( p_owner->p_description && p_dec->p_description )
2108 vlc_meta_Delete( p_owner->p_description );
2109 p_owner->p_description = p_dec->p_description;
2110 p_dec->p_description = NULL;
2112 static vout_thread_t *aout_request_vout( void *p_private,
2113 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
2115 decoder_t *p_dec = p_private;
2116 input_thread_t *p_input = p_dec->p_owner->p_input;
2118 p_vout = input_resource_RequestVout( p_input->p->p_resource, p_vout, p_fmt, b_recyle );
2119 input_SendEventVout( p_input );
2124 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2126 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2127 aout_buffer_t *p_buffer;
2129 if( p_owner->p_aout_input != NULL &&
2130 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2131 p_dec->fmt_out.audio.i_original_channels !=
2132 p_owner->audio.i_original_channels ||
2133 p_dec->fmt_out.audio.i_bytes_per_frame !=
2134 p_owner->audio.i_bytes_per_frame ) )
2136 aout_input_t *p_aout_input = p_owner->p_aout_input;
2138 /* Parameters changed, restart the aout */
2139 vlc_mutex_lock( &p_owner->lock );
2141 DecoderFlushBuffering( p_dec );
2143 p_owner->p_aout_input = NULL;
2144 aout_DecDelete( p_owner->p_aout, p_aout_input );
2146 vlc_mutex_unlock( &p_owner->lock );
2149 if( p_owner->p_aout_input == NULL )
2151 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2152 audio_sample_format_t format;
2153 aout_input_t *p_aout_input;
2154 aout_instance_t *p_aout;
2155 aout_request_vout_t request_vout;
2157 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2158 p_owner->audio = p_dec->fmt_out.audio;
2160 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2161 if( i_force_dolby &&
2162 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2163 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2165 if( i_force_dolby == 1 )
2167 format.i_original_channels = format.i_original_channels |
2168 AOUT_CHAN_DOLBYSTEREO;
2170 else /* i_force_dolby == 2 */
2172 format.i_original_channels = format.i_original_channels &
2173 ~AOUT_CHAN_DOLBYSTEREO;
2177 request_vout.pf_request_vout = aout_request_vout;
2178 request_vout.p_private = p_dec;
2180 p_aout = p_owner->p_aout;
2182 p_aout = input_resource_RequestAout( p_owner->p_input->p->p_resource, NULL );
2183 p_aout_input = aout_DecNew( p_dec, &p_aout,
2184 &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
2186 vlc_mutex_lock( &p_owner->lock );
2188 p_owner->p_aout = p_aout;
2189 p_owner->p_aout_input = p_aout_input;
2190 DecoderUpdateFormatLocked( p_dec );
2192 vlc_mutex_unlock( &p_owner->lock );
2194 input_SendEventAout( p_owner->p_input );
2196 if( p_owner->p_aout_input == NULL )
2198 msg_Err( p_dec, "failed to create audio output" );
2199 p_dec->b_error = true;
2202 p_dec->fmt_out.audio.i_bytes_per_frame =
2203 p_owner->audio.i_bytes_per_frame;
2206 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2211 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2213 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2215 aout_DecDeleteBuffer( p_owner->p_aout,
2216 p_owner->p_aout_input, p_buffer );
2220 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2222 static picture_t *vout_new_buffer( decoder_t *p_dec )
2224 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2226 if( p_owner->p_vout == NULL ||
2227 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2228 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2229 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2230 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2232 vout_thread_t *p_vout;
2234 if( !p_dec->fmt_out.video.i_width ||
2235 !p_dec->fmt_out.video.i_height )
2237 /* Can't create a new vout without display size */
2241 if( !p_dec->fmt_out.video.i_visible_width ||
2242 !p_dec->fmt_out.video.i_visible_height )
2244 if( p_dec->fmt_in.video.i_visible_width &&
2245 p_dec->fmt_in.video.i_visible_height )
2247 p_dec->fmt_out.video.i_visible_width =
2248 p_dec->fmt_in.video.i_visible_width;
2249 p_dec->fmt_out.video.i_visible_height =
2250 p_dec->fmt_in.video.i_visible_height;
2254 p_dec->fmt_out.video.i_visible_width =
2255 p_dec->fmt_out.video.i_width;
2256 p_dec->fmt_out.video.i_visible_height =
2257 p_dec->fmt_out.video.i_height;
2261 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2262 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2264 p_dec->fmt_out.video.i_visible_height = 1080;
2265 p_dec->fmt_out.video.i_sar_num *= 135;
2266 p_dec->fmt_out.video.i_sar_den *= 136;
2267 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2270 if( !p_dec->fmt_out.video.i_sar_num ||
2271 !p_dec->fmt_out.video.i_sar_den )
2273 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2274 p_dec->fmt_out.video.i_visible_height;
2276 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2277 p_dec->fmt_out.video.i_visible_width;
2280 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2281 &p_dec->fmt_out.video.i_sar_den,
2282 p_dec->fmt_out.video.i_sar_num,
2283 p_dec->fmt_out.video.i_sar_den, 50000 );
2285 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2286 p_owner->video = p_dec->fmt_out.video;
2288 vlc_mutex_lock( &p_owner->lock );
2290 DecoderFlushBuffering( p_dec );
2292 p_vout = p_owner->p_vout;
2293 p_owner->p_vout = NULL;
2294 vlc_mutex_unlock( &p_owner->lock );
2296 p_vout = input_resource_RequestVout( p_owner->p_input->p->p_resource,
2297 p_vout, &p_dec->fmt_out.video, true );
2299 vlc_mutex_lock( &p_owner->lock );
2300 p_owner->p_vout = p_vout;
2302 DecoderUpdateFormatLocked( p_dec );
2304 vlc_mutex_unlock( &p_owner->lock );
2306 input_SendEventVout( p_owner->p_input );
2307 if( p_vout == NULL )
2309 msg_Err( p_dec, "failed to create video output" );
2310 p_dec->b_error = true;
2314 if( p_owner->video.i_rmask )
2315 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2316 if( p_owner->video.i_gmask )
2317 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2318 if( p_owner->video.i_bmask )
2319 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2322 /* Get a new picture
2326 picture_t *p_picture;
2328 if( p_dec->b_die || p_dec->b_error )
2331 /* The video filter chain required that there is always 1 free buffer
2332 * that it will use as temporary one. It will release the temporary
2333 * buffer once its work is done, so this check is safe even if we don't
2334 * lock around both count() and create().
2336 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2338 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2343 if( DecoderIsFlushing( p_dec ) )
2347 DecoderSignalBuffering( p_dec, true );
2349 /* Check the decoder doesn't leak pictures */
2350 vout_FixLeaks( p_owner->p_vout, false );
2352 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2353 msleep( VOUT_OUTMEM_SLEEP );
2357 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2359 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2362 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2364 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2367 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2369 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2372 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2374 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2375 vout_thread_t *p_vout = NULL;
2376 subpicture_t *p_subpic;
2377 int i_attempts = 30;
2379 while( i_attempts-- )
2381 if( p_dec->b_die || p_dec->b_error )
2384 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2388 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2393 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2397 if( p_owner->p_spu_vout != p_vout )
2399 vlc_mutex_lock( &p_owner->lock );
2401 DecoderFlushBuffering( p_dec );
2403 vlc_mutex_unlock( &p_owner->lock );
2405 spu_Control( vout_GetSpu( p_vout ), SPU_CHANNEL_REGISTER,
2406 &p_owner->i_spu_channel );
2407 p_owner->i_spu_order = 0;
2408 p_owner->p_spu_vout = p_vout;
2411 p_subpic = subpicture_New();
2414 p_subpic->i_channel = p_owner->i_spu_channel;
2415 p_subpic->i_order = p_owner->i_spu_order++;
2416 p_subpic->b_subtitle = true;
2419 vlc_object_release( p_vout );
2424 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2426 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2427 vout_thread_t *p_vout = NULL;
2429 p_vout = input_resource_HoldVout( p_owner->p_input->p->p_resource );
2430 if( !p_vout || p_owner->p_spu_vout != p_vout )
2433 vlc_object_release( p_vout );
2434 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2438 subpicture_Delete( p_subpic );
2440 vlc_object_release( p_vout );