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_interface.h>
44 #include "audio_output/aout_internal.h"
45 #include "stream_output/stream_output.h"
46 #include "input_internal.h"
50 #include "../video_output/vout_control.h"
52 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
53 static void DeleteDecoder( decoder_t * );
55 static void *DecoderThread( vlc_object_t * );
56 static int DecoderProcess( decoder_t *, block_t * );
57 static void DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
58 static void DecoderFlush( decoder_t * );
59 static void DecoderSignalBuffering( decoder_t *, bool );
60 static void DecoderFlushBuffering( decoder_t * );
62 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
64 /* Buffers allocation callbacks for the decoders */
65 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
66 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
68 static picture_t *vout_new_buffer( decoder_t * );
69 static void vout_del_buffer( decoder_t *, picture_t * );
70 static void vout_link_picture( decoder_t *, picture_t * );
71 static void vout_unlink_picture( decoder_t *, picture_t * );
73 static subpicture_t *spu_new_buffer( decoder_t * );
74 static void spu_del_buffer( decoder_t *, subpicture_t * );
76 static es_format_t null_es_format;
78 struct decoder_owner_sys_t
80 int64_t i_preroll_end;
82 input_thread_t *p_input;
83 input_clock_t *p_clock;
86 vout_thread_t *p_spu_vout;
90 sout_instance_t *p_sout;
91 sout_packetizer_input_t *p_sout_input;
93 /* Some decoders require already packetized data (ie. not truncated) */
94 decoder_t *p_packetizer;
96 /* Current format in use by the output */
102 block_fifo_t *p_fifo;
104 /* Lock for communication with decoder thread */
108 /* -- These variables need locking on write(only) -- */
109 aout_instance_t *p_aout;
110 aout_input_t *p_aout_input;
112 vout_thread_t *p_vout;
114 /* -- Theses variables need locking on read *and* write -- */
132 picture_t *p_picture;
133 picture_t **pp_picture_next;
135 subpicture_t *p_subpic;
136 subpicture_t **pp_subpic_next;
138 aout_buffer_t *p_audio;
139 aout_buffer_t **pp_audio_next;
142 block_t **pp_block_next;
153 decoder_t *pp_decoder[4];
160 #define DECODER_MAX_BUFFERING_COUNT (4)
161 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
162 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
164 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
165 * a bogus PTS and won't be displayed */
166 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
169 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
172 /*****************************************************************************
174 *****************************************************************************/
175 picture_t *decoder_NewPicture( decoder_t *p_decoder )
177 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
179 msg_Warn( p_decoder, "can't get output picture" );
182 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
184 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
186 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
188 p_decoder->pf_picture_link( p_decoder, p_picture );
190 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
192 p_decoder->pf_picture_unlink( p_decoder, p_picture );
195 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
197 if( !p_decoder->pf_aout_buffer_new )
199 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
201 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
203 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
206 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
208 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
210 msg_Warn( p_decoder, "can't get output subpicture" );
213 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
215 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
218 /* decoder_GetInputAttachments:
220 int decoder_GetInputAttachments( decoder_t *p_dec,
221 input_attachment_t ***ppp_attachment,
224 if( !p_dec->pf_get_attachments )
227 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
229 /* decoder_GetDisplayDate:
231 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
233 if( !p_dec->pf_get_display_date )
236 return p_dec->pf_get_display_date( p_dec, i_ts );
238 /* decoder_GetDisplayRate:
240 int decoder_GetDisplayRate( decoder_t *p_dec )
242 if( !p_dec->pf_get_display_rate )
243 return INPUT_RATE_DEFAULT;
245 return p_dec->pf_get_display_rate( p_dec );
249 * Spawns a new decoder thread
251 * \param p_input the input thread
252 * \param p_es the es descriptor
253 * \return the spawned decoder object
255 decoder_t *input_DecoderNew( input_thread_t *p_input,
256 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
258 decoder_t *p_dec = NULL;
262 /* If we are in sout mode, search for packetizer module */
265 /* Create the decoder configuration structure */
266 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
269 msg_Err( p_input, "could not create packetizer" );
270 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
271 _("VLC could not open the packetizer module.") );
278 /* Create the decoder configuration structure */
279 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
282 msg_Err( p_input, "could not create decoder" );
283 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
284 _("VLC could not open the decoder module.") );
289 if( !p_dec->p_module )
291 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
293 DeleteDecoder( p_dec );
294 vlc_object_release( p_dec );
298 p_dec->p_owner->p_clock = p_clock;
300 if( fmt->i_cat == AUDIO_ES )
301 i_priority = VLC_THREAD_PRIORITY_AUDIO;
303 i_priority = VLC_THREAD_PRIORITY_VIDEO;
305 /* Spawn the decoder thread */
306 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
307 i_priority, false ) )
309 msg_Err( p_dec, "cannot spawn decoder thread" );
310 module_unneed( p_dec, p_dec->p_module );
311 DeleteDecoder( p_dec );
312 vlc_object_release( p_dec );
320 * Kills a decoder thread and waits until it's finished
322 * \param p_input the input thread
323 * \param p_es the es descriptor
326 void input_DecoderDelete( decoder_t *p_dec )
328 decoder_owner_sys_t *p_owner = p_dec->p_owner;
330 vlc_object_kill( p_dec );
332 /* Make sure we aren't paused anymore */
333 vlc_mutex_lock( &p_owner->lock );
334 if( p_owner->b_paused || p_owner->b_buffering )
336 p_owner->b_paused = false;
337 p_owner->b_buffering = false;
338 vlc_cond_signal( &p_owner->wait );
340 vlc_mutex_unlock( &p_owner->lock );
342 vlc_thread_join( p_dec );
343 module_unneed( p_dec, p_dec->p_module );
346 if( p_dec->p_owner->cc.b_supported )
349 for( i = 0; i < 4; i++ )
350 input_DecoderSetCcState( p_dec, false, i );
353 /* Delete decoder configuration */
354 DeleteDecoder( p_dec );
356 /* Delete the decoder */
357 vlc_object_release( p_dec );
361 * Put a block_t in the decoder's fifo.
362 * Thread-safe w.r.t. the decoder. May be a cancellation point.
364 * \param p_dec the decoder object
365 * \param p_block the data block
367 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
369 decoder_owner_sys_t *p_owner = p_dec->p_owner;
371 if( p_owner->p_input->p->b_out_pace_control )
373 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
375 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
377 /* FIXME: ideally we would check the time amount of data
378 * in the FIFO instead of its size. */
379 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
380 "consumed quickly enough), resetting fifo!" );
381 block_FifoEmpty( p_owner->p_fifo );
384 block_FifoPut( p_owner->p_fifo, p_block );
387 bool input_DecoderIsEmpty( decoder_t * p_dec )
389 assert( !p_dec->p_owner->b_buffering );
391 /* FIXME that's not really true */
392 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
395 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
397 decoder_owner_sys_t *p_owner = p_dec->p_owner;
400 vlc_mutex_lock( &p_owner->lock );
401 for( i = 0; i < 4; i++ )
402 pb_present[i] = p_owner->cc.pb_present[i];
403 vlc_mutex_unlock( &p_owner->lock );
405 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
407 decoder_owner_sys_t *p_owner = p_dec->p_owner;
409 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
411 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
416 static const vlc_fourcc_t fcc[4] = {
417 VLC_FOURCC('c', 'c', '1', ' '),
418 VLC_FOURCC('c', 'c', '2', ' '),
419 VLC_FOURCC('c', 'c', '3', ' '),
420 VLC_FOURCC('c', 'c', '4', ' '),
425 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
426 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
429 msg_Err( p_dec, "could not create decoder" );
430 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
431 _("VLC could not open the decoder module.") );
434 else if( !p_cc->p_module )
436 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
437 DeleteDecoder( p_cc );
438 vlc_object_release( p_cc );
441 p_cc->p_owner->p_clock = p_owner->p_clock;
443 vlc_mutex_lock( &p_owner->lock );
444 p_owner->cc.pp_decoder[i_channel] = p_cc;
445 vlc_mutex_unlock( &p_owner->lock );
451 vlc_mutex_lock( &p_owner->lock );
452 p_cc = p_owner->cc.pp_decoder[i_channel];
453 p_owner->cc.pp_decoder[i_channel] = NULL;
454 vlc_mutex_unlock( &p_owner->lock );
458 vlc_object_kill( p_cc );
459 module_unneed( p_cc, p_cc->p_module );
460 DeleteDecoder( p_cc );
461 vlc_object_release( p_cc );
466 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
468 decoder_owner_sys_t *p_owner = p_dec->p_owner;
471 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
474 vlc_mutex_lock( &p_owner->lock );
475 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
476 vlc_mutex_unlock( &p_owner->lock );
480 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
482 decoder_owner_sys_t *p_owner = p_dec->p_owner;
484 vlc_mutex_lock( &p_owner->lock );
486 assert( !p_owner->b_paused || !b_paused );
488 p_owner->b_paused = b_paused;
489 p_owner->pause.i_date = i_date;
490 p_owner->pause.i_ignore = 0;
491 vlc_cond_signal( &p_owner->wait );
493 DecoderOutputChangePause( p_dec, b_paused, i_date );
495 vlc_mutex_unlock( &p_owner->lock );
498 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
500 decoder_owner_sys_t *p_owner = p_dec->p_owner;
502 vlc_mutex_lock( &p_owner->lock );
503 p_owner->i_ts_delay = i_delay;
504 vlc_mutex_unlock( &p_owner->lock );
507 void input_DecoderStartBuffering( decoder_t *p_dec )
509 decoder_owner_sys_t *p_owner = p_dec->p_owner;
511 vlc_mutex_lock( &p_owner->lock );
513 DecoderFlush( p_dec );
515 p_owner->buffer.b_first = true;
516 p_owner->buffer.b_full = false;
517 p_owner->buffer.i_count = 0;
519 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
520 !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
522 p_owner->buffer.p_picture = NULL;
523 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
525 p_owner->buffer.p_subpic = NULL;
526 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
528 p_owner->buffer.p_audio = NULL;
529 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
531 p_owner->buffer.p_block = NULL;
532 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
535 p_owner->b_buffering = true;
537 vlc_cond_signal( &p_owner->wait );
539 vlc_mutex_unlock( &p_owner->lock );
542 void input_DecoderStopBuffering( decoder_t *p_dec )
544 decoder_owner_sys_t *p_owner = p_dec->p_owner;
546 vlc_mutex_lock( &p_owner->lock );
548 p_owner->b_buffering = false;
550 vlc_cond_signal( &p_owner->wait );
552 vlc_mutex_unlock( &p_owner->lock );
555 void input_DecoderWaitBuffering( decoder_t *p_dec )
557 decoder_owner_sys_t *p_owner = p_dec->p_owner;
559 vlc_mutex_lock( &p_owner->lock );
561 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
563 block_FifoWake( p_owner->p_fifo );
564 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
567 vlc_mutex_unlock( &p_owner->lock );
569 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
571 decoder_owner_sys_t *p_owner = p_dec->p_owner;
575 vlc_mutex_lock( &p_owner->lock );
576 if( p_dec->fmt_in.i_cat == VIDEO_ES )
578 if( p_owner->b_paused && p_owner->p_vout )
580 vout_NextPicture( p_owner->p_vout, pi_duration );
581 p_owner->pause.i_ignore++;
582 vlc_cond_signal( &p_owner->wait );
587 /* TODO subtitle should not be flushed */
588 DecoderFlush( p_dec );
590 vlc_mutex_unlock( &p_owner->lock );
593 /*****************************************************************************
595 *****************************************************************************/
596 static int DecoderGetInputAttachments( decoder_t *p_dec,
597 input_attachment_t ***ppp_attachment,
600 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
601 ppp_attachment, pi_attachment );
603 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
605 decoder_owner_sys_t *p_owner = p_dec->p_owner;
607 vlc_mutex_lock( &p_owner->lock );
608 if( p_owner->b_buffering || p_owner->b_paused )
610 vlc_mutex_unlock( &p_owner->lock );
612 if( !p_owner->p_clock || !i_ts )
615 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
617 static int DecoderGetDisplayRate( decoder_t *p_dec )
619 decoder_owner_sys_t *p_owner = p_dec->p_owner;
621 if( !p_owner->p_clock )
622 return INPUT_RATE_DEFAULT;
623 return input_clock_GetRate( p_owner->p_clock );
627 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
629 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
630 "VLC probably does not support this sound or video format.",
632 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
633 _("VLC does not support the audio or video format \"%4.4s\". "
634 "Unfortunately there is no way for you to fix this."), (char*)&codec );
639 * Create a decoder object
641 * \param p_input the input thread
642 * \param p_es the es descriptor
643 * \param i_object_type Object type as define in include/vlc_objects.h
644 * \return the decoder object
646 static decoder_t * CreateDecoder( input_thread_t *p_input,
647 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
650 decoder_owner_sys_t *p_owner;
653 p_dec = vlc_object_create( p_input, i_object_type );
657 p_dec->pf_decode_audio = NULL;
658 p_dec->pf_decode_video = NULL;
659 p_dec->pf_decode_sub = NULL;
660 p_dec->pf_get_cc = NULL;
661 p_dec->pf_packetize = NULL;
663 /* Initialize the decoder fifo */
664 p_dec->p_module = NULL;
666 memset( &null_es_format, 0, sizeof(es_format_t) );
667 es_format_Copy( &p_dec->fmt_in, fmt );
668 es_format_Copy( &p_dec->fmt_out, &null_es_format );
670 /* Allocate our private structure for the decoder */
671 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
672 if( p_dec->p_owner == NULL )
674 vlc_object_release( p_dec );
677 p_dec->p_owner->i_preroll_end = -1;
678 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
679 p_dec->p_owner->p_input = p_input;
680 p_dec->p_owner->p_aout = NULL;
681 p_dec->p_owner->p_aout_input = NULL;
682 p_dec->p_owner->p_vout = NULL;
683 p_dec->p_owner->p_spu_vout = NULL;
684 p_dec->p_owner->i_spu_channel = 0;
685 p_dec->p_owner->i_spu_order = 0;
686 p_dec->p_owner->p_sout = p_sout;
687 p_dec->p_owner->p_sout_input = NULL;
688 p_dec->p_owner->p_packetizer = NULL;
691 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
693 free( p_dec->p_owner );
694 vlc_object_release( p_dec );
698 /* Set buffers allocation callbacks for the decoders */
699 p_dec->pf_aout_buffer_new = aout_new_buffer;
700 p_dec->pf_aout_buffer_del = aout_del_buffer;
701 p_dec->pf_vout_buffer_new = vout_new_buffer;
702 p_dec->pf_vout_buffer_del = vout_del_buffer;
703 p_dec->pf_picture_link = vout_link_picture;
704 p_dec->pf_picture_unlink = vout_unlink_picture;
705 p_dec->pf_spu_buffer_new = spu_new_buffer;
706 p_dec->pf_spu_buffer_del = spu_del_buffer;
708 p_dec->pf_get_attachments = DecoderGetInputAttachments;
709 p_dec->pf_get_display_date = DecoderGetDisplayDate;
710 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
712 vlc_object_attach( p_dec, p_input );
714 /* Find a suitable decoder/packetizer module */
715 if( i_object_type == VLC_OBJECT_DECODER )
716 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
718 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
720 /* Check if decoder requires already packetized data */
721 if( i_object_type == VLC_OBJECT_DECODER &&
722 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
724 p_dec->p_owner->p_packetizer =
725 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
726 if( p_dec->p_owner->p_packetizer )
728 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
731 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
734 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
736 p_dec->p_owner->p_packetizer->p_module =
737 module_need( p_dec->p_owner->p_packetizer,
738 "packetizer", "$packetizer", 0 );
740 if( !p_dec->p_owner->p_packetizer->p_module )
742 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
743 vlc_object_detach( p_dec->p_owner->p_packetizer );
744 vlc_object_release( p_dec->p_owner->p_packetizer );
749 /* Copy ourself the input replay gain */
750 if( fmt->i_cat == AUDIO_ES )
752 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
754 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
756 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
757 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
759 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
761 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
762 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
768 vlc_mutex_init( &p_owner->lock );
769 vlc_cond_init( &p_owner->wait );
771 p_owner->b_paused = false;
772 p_owner->pause.i_date = 0;
773 p_owner->pause.i_ignore = 0;
775 p_owner->b_buffering = false;
776 p_owner->buffer.b_first = true;
777 p_owner->buffer.b_full = false;
778 p_owner->buffer.i_count = 0;
779 p_owner->buffer.p_picture = NULL;
780 p_owner->buffer.p_subpic = NULL;
781 p_owner->buffer.p_audio = NULL;
782 p_owner->buffer.p_block = NULL;
784 p_owner->b_flushing = false;
787 p_owner->cc.b_supported = false;
788 if( i_object_type == VLC_OBJECT_DECODER )
790 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
791 p_owner->cc.b_supported = true;
792 if( p_dec->pf_get_cc )
793 p_owner->cc.b_supported = true;
796 for( i = 0; i < 4; i++ )
798 p_owner->cc.pb_present[i] = false;
799 p_owner->cc.pp_decoder[i] = NULL;
801 p_owner->i_ts_delay = 0;
806 * The decoding main loop
808 * \param p_dec the decoder
810 static void *DecoderThread( vlc_object_t *p_this )
812 decoder_t *p_dec = (decoder_t *)p_this;
813 decoder_owner_sys_t *p_owner = p_dec->p_owner;
815 /* The decoder's main loop */
818 block_t *p_block = block_FifoGet( p_owner->p_fifo );
819 /* Make sure there is no cancellation point other than this one^^.
820 * If you need one, be sure to push cleanup of p_block. */
821 DecoderSignalBuffering( p_dec, p_block == NULL );
826 block_Release( p_block );
828 DecoderProcess( p_dec, p_block );
832 DecoderSignalBuffering( p_dec, true );
836 static void DecoderFlush( decoder_t *p_dec )
838 decoder_owner_sys_t *p_owner = p_dec->p_owner;
841 vlc_assert_locked( &p_owner->lock );
844 block_FifoEmpty( p_owner->p_fifo );
846 /* Monitor for flush end */
847 p_owner->b_flushing = true;
848 vlc_cond_signal( &p_owner->wait );
850 /* Send a special block */
851 p_null = block_New( p_dec, 128 );
854 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
855 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
856 if( !p_dec->fmt_in.b_packetized )
857 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
858 memset( p_null->p_buffer, 0, p_null->i_buffer );
860 input_DecoderDecode( p_dec, p_null );
863 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
864 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
867 static void DecoderSignalFlushed( decoder_t *p_dec )
869 decoder_owner_sys_t *p_owner = p_dec->p_owner;
871 vlc_mutex_lock( &p_owner->lock );
873 if( p_owner->b_flushing )
875 p_owner->b_flushing = false;
876 vlc_cond_signal( &p_owner->wait );
879 vlc_mutex_unlock( &p_owner->lock );
882 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
884 decoder_owner_sys_t *p_owner = p_dec->p_owner;
886 vlc_mutex_lock( &p_owner->lock );
888 if( p_owner->b_buffering )
891 p_owner->buffer.b_full = true;
892 vlc_cond_signal( &p_owner->wait );
895 vlc_mutex_unlock( &p_owner->lock );
898 static bool DecoderIsFlushing( decoder_t *p_dec )
900 decoder_owner_sys_t *p_owner = p_dec->p_owner;
903 vlc_mutex_lock( &p_owner->lock );
905 b_flushing = p_owner->b_flushing;
907 vlc_mutex_unlock( &p_owner->lock );
912 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
914 decoder_owner_sys_t *p_owner = p_dec->p_owner;
916 vlc_assert_locked( &p_owner->lock );
918 while( !p_owner->b_flushing )
920 if( p_owner->b_paused )
922 if( p_owner->b_buffering && !p_owner->buffer.b_full )
924 if( p_owner->pause.i_ignore > 0 )
926 p_owner->pause.i_ignore--;
932 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
935 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
939 *pb_reject = p_owner->b_flushing;
942 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
944 decoder_owner_sys_t *p_owner = p_dec->p_owner;
946 vlc_assert_locked( &p_owner->lock );
948 /* XXX only audio and video output have to be paused.
949 * - for sout it is useless
950 * - for subs, it is done by the vout
952 if( p_dec->fmt_in.i_cat == AUDIO_ES )
954 if( p_owner->p_aout && p_owner->p_aout_input )
955 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
958 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
960 if( p_owner->p_vout )
961 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
964 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
966 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
967 *pi_preroll = INT64_MAX;
968 else if( p->i_pts > 0 )
969 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
970 else if( p->i_dts > 0 )
971 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
974 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
976 mtime_t current_date = mdate();
978 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
979 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
981 /* ETSI EN 300 472 Annex A : do not take into account the PTS
982 * for teletext streams. */
983 return current_date + 400000 + i_ts_delay;
988 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
989 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
991 decoder_owner_sys_t *p_owner = p_dec->p_owner;
992 input_clock_t *p_clock = p_owner->p_clock;
995 vlc_assert_locked( &p_owner->lock );
997 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
998 const mtime_t i_es_delay = p_owner->i_ts_delay;
1002 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1005 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1006 *pi_ts0 + i_es_delay );
1007 if( pi_ts1 && *pi_ts1 > 0 )
1008 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1009 *pi_ts1 + i_es_delay );
1011 /* Do not create ephemere data because of rounding errors */
1012 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1016 i_rate = input_clock_GetRate( p_clock );
1019 *pi_duration = ( *pi_duration * i_rate +
1020 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1027 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
1028 if( pi_ts1 && *pi_ts1 <= 0 )
1034 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
1035 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
1039 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1040 int *pi_played_sum, int *pi_lost_sum )
1042 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1043 aout_instance_t *p_aout = p_owner->p_aout;
1044 aout_input_t *p_aout_input = p_owner->p_aout_input;
1047 if( p_audio->start_date <= 0 )
1049 msg_Warn( p_dec, "non-dated audio buffer received" );
1051 aout_BufferFree( p_audio );
1056 vlc_mutex_lock( &p_owner->lock );
1058 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1060 p_audio->p_next = NULL;
1062 *p_owner->buffer.pp_audio_next = p_audio;
1063 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1065 p_owner->buffer.i_count++;
1066 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1067 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1069 p_owner->buffer.b_full = true;
1070 vlc_cond_signal( &p_owner->wait );
1076 bool b_has_more = false;
1078 DecoderWaitUnblock( p_dec, &b_reject );
1080 if( p_owner->b_buffering )
1082 vlc_mutex_unlock( &p_owner->lock );
1087 if( p_owner->buffer.p_audio )
1089 p_audio = p_owner->buffer.p_audio;
1091 p_owner->buffer.p_audio = p_audio->p_next;
1092 p_owner->buffer.i_count--;
1094 b_has_more = p_owner->buffer.p_audio != NULL;
1096 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1100 int i_rate = INPUT_RATE_DEFAULT;
1103 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1104 &i_rate, &i_delay, false );
1106 vlc_mutex_unlock( &p_owner->lock );
1109 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1111 if( !p_aout || !p_aout_input ||
1112 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1113 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1114 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1119 /* Wait if we are too early
1120 * FIXME that's plain ugly to do it here */
1121 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1123 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1124 *pi_played_sum += 1;
1125 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1129 if( p_audio->start_date <= 0 )
1131 msg_Warn( p_dec, "non-dated audio buffer received" );
1133 else if( p_audio->start_date > i_max_date )
1135 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1136 p_audio->start_date - mdate() );
1139 aout_BufferFree( p_audio );
1145 vlc_mutex_lock( &p_owner->lock );
1146 if( !p_owner->buffer.p_audio )
1148 vlc_mutex_unlock( &p_owner->lock );
1154 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1156 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1157 input_thread_t *p_input = p_owner->p_input;
1158 aout_buffer_t *p_aout_buf;
1163 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1165 aout_instance_t *p_aout = p_owner->p_aout;
1166 aout_input_t *p_aout_input = p_owner->p_aout_input;
1172 /* It prevent freezing VLC in case of broken decoder */
1173 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1175 block_Release( p_block );
1180 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1182 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1186 if( p_owner->i_preroll_end > 0 )
1188 msg_Dbg( p_dec, "End of audio preroll" );
1189 if( p_owner->p_aout && p_owner->p_aout_input )
1190 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1192 p_owner->i_preroll_end = -1;
1195 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1198 /* Update ugly stat */
1199 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1201 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1203 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1205 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1207 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1210 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1213 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1215 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1221 assert( p_dec_cc->pf_get_cc != NULL );
1223 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1224 if( !p_owner->cc.b_supported )
1227 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1231 vlc_mutex_lock( &p_owner->lock );
1232 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1234 p_owner->cc.pb_present[i] |= pb_present[i];
1235 if( p_owner->cc.pp_decoder[i] )
1239 for( i = 0; i < 4; i++ )
1241 if( !p_owner->cc.pp_decoder[i] )
1244 if( i_cc_decoder > 1 )
1245 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1247 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1250 vlc_mutex_unlock( &p_owner->lock );
1253 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1254 int *pi_played_sum, int *pi_lost_sum )
1256 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1257 vout_thread_t *p_vout = p_owner->p_vout;
1258 bool b_first_buffered;
1260 if( p_picture->date <= 0 )
1262 msg_Warn( p_vout, "non-dated video buffer received" );
1264 vout_DropPicture( p_vout, p_picture );
1269 vlc_mutex_lock( &p_owner->lock );
1271 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1273 p_picture->p_next = NULL;
1275 *p_owner->buffer.pp_picture_next = p_picture;
1276 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1278 p_owner->buffer.i_count++;
1279 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1280 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1282 p_owner->buffer.b_full = true;
1283 vlc_cond_signal( &p_owner->wait );
1286 b_first_buffered = p_owner->buffer.p_picture != NULL;
1288 for( ;; b_first_buffered = false )
1290 bool b_has_more = false;
1294 DecoderWaitUnblock( p_dec, &b_reject );
1296 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1298 vlc_mutex_unlock( &p_owner->lock );
1301 bool b_buffering_first = p_owner->b_buffering;
1304 if( p_owner->buffer.p_picture )
1306 p_picture = p_owner->buffer.p_picture;
1308 p_owner->buffer.p_picture = p_picture->p_next;
1309 p_owner->buffer.i_count--;
1311 b_has_more = p_owner->buffer.p_picture != NULL;
1313 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1317 int i_rate = INPUT_RATE_DEFAULT;
1320 if( b_buffering_first )
1322 assert( p_owner->buffer.b_first );
1323 assert( !p_owner->buffer.i_count );
1324 msg_Dbg( p_dec, "Received first picture" );
1325 p_owner->buffer.b_first = false;
1326 p_picture->b_force = true;
1328 if( p_owner->p_clock )
1329 i_rate = input_clock_GetRate( p_owner->p_clock );
1331 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1332 &i_rate, &i_delay, false );
1334 vlc_mutex_unlock( &p_owner->lock );
1337 const mtime_t i_max_date = mdate() + i_delay + DECODER_BOGUS_VIDEO_DELAY;
1339 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1344 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1346 /* Be sure to not display old picture after our own */
1347 vout_Flush( p_vout, p_picture->date );
1348 p_owner->i_last_rate = i_rate;
1350 vout_DisplayPicture( p_vout, p_picture );
1354 if( p_picture->date <= 0 )
1356 msg_Warn( p_vout, "non-dated video buffer received" );
1360 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1361 p_picture->date - mdate() );
1364 vout_DropPicture( p_vout, p_picture );
1368 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1370 *pi_played_sum += i_tmp_display;
1371 *pi_lost_sum += i_tmp_lost;
1373 if( !b_has_more || b_buffering_first )
1376 vlc_mutex_lock( &p_owner->lock );
1377 if( !p_owner->buffer.p_picture )
1379 vlc_mutex_unlock( &p_owner->lock );
1385 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1387 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1388 input_thread_t *p_input = p_owner->p_input;
1392 int i_displayed = 0;
1394 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1396 vout_thread_t *p_vout = p_owner->p_vout;
1399 /* It prevent freezing VLC in case of broken decoder */
1400 vout_DropPicture( p_vout, p_pic );
1402 block_Release( p_block );
1408 if( p_pic->date < p_owner->i_preroll_end )
1410 vout_DropPicture( p_vout, p_pic );
1414 if( p_owner->i_preroll_end > 0 )
1416 msg_Dbg( p_dec, "End of video preroll" );
1418 vout_Flush( p_vout, 1 );
1420 p_owner->i_preroll_end = -1;
1423 if( p_dec->pf_get_cc &&
1424 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1425 DecoderGetCc( p_dec, p_dec );
1427 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1429 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1431 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1433 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1435 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1438 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1441 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1445 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1448 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1449 vout_thread_t *p_vout = p_owner->p_spu_vout;
1452 if( p_subpic->i_start <= 0 )
1454 msg_Warn( p_dec, "non-dated spu buffer received" );
1455 subpicture_Delete( p_subpic );
1460 vlc_mutex_lock( &p_owner->lock );
1462 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1464 p_subpic->p_next = NULL;
1466 *p_owner->buffer.pp_subpic_next = p_subpic;
1467 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1469 p_owner->buffer.i_count++;
1470 /* XXX it is important to be full after the first one */
1471 if( p_owner->buffer.i_count > 0 )
1473 p_owner->buffer.b_full = true;
1474 vlc_cond_signal( &p_owner->wait );
1480 bool b_has_more = false;
1482 DecoderWaitUnblock( p_dec, &b_reject );
1484 if( p_owner->b_buffering )
1486 vlc_mutex_unlock( &p_owner->lock );
1491 if( p_owner->buffer.p_subpic )
1493 p_subpic = p_owner->buffer.p_subpic;
1495 p_owner->buffer.p_subpic = p_subpic->p_next;
1496 p_owner->buffer.i_count--;
1498 b_has_more = p_owner->buffer.p_subpic != NULL;
1500 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1504 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1505 NULL, NULL, b_telx );
1507 vlc_mutex_unlock( &p_owner->lock );
1510 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1512 subpicture_Delete( p_subpic );
1516 vlc_mutex_lock( &p_owner->lock );
1517 if( !p_owner->buffer.p_subpic )
1519 vlc_mutex_unlock( &p_owner->lock );
1525 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1528 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1530 assert( p_owner->p_clock );
1531 assert( !p_sout_block->p_next );
1533 vlc_mutex_lock( &p_owner->lock );
1535 if( p_owner->b_buffering || p_owner->buffer.p_block )
1537 block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1539 p_owner->buffer.i_count++;
1540 /* XXX it is important to be full after the first one */
1541 if( p_owner->buffer.i_count > 0 )
1543 p_owner->buffer.b_full = true;
1544 vlc_cond_signal( &p_owner->wait );
1550 bool b_has_more = false;
1552 DecoderWaitUnblock( p_dec, &b_reject );
1554 if( p_owner->b_buffering )
1556 vlc_mutex_unlock( &p_owner->lock );
1561 if( p_owner->buffer.p_block )
1563 p_sout_block = p_owner->buffer.p_block;
1565 p_owner->buffer.p_block = p_sout_block->p_next;
1566 p_owner->buffer.i_count--;
1568 b_has_more = p_owner->buffer.p_block != NULL;
1570 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1572 p_sout_block->p_next = NULL;
1574 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1575 &p_sout_block->i_length,
1576 &p_sout_block->i_rate, NULL, b_telx );
1578 vlc_mutex_unlock( &p_owner->lock );
1581 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1583 block_Release( p_sout_block );
1587 vlc_mutex_lock( &p_owner->lock );
1588 if( !p_owner->buffer.p_block )
1590 vlc_mutex_unlock( &p_owner->lock );
1597 static void DecoderFlushBuffering( decoder_t *p_dec )
1599 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1601 vlc_assert_locked( &p_owner->lock );
1603 while( p_owner->buffer.p_picture )
1605 picture_t *p_picture = p_owner->buffer.p_picture;
1607 p_owner->buffer.p_picture = p_picture->p_next;
1608 p_owner->buffer.i_count--;
1610 if( p_owner->p_vout )
1611 vout_DropPicture( p_owner->p_vout, p_picture );
1613 if( !p_owner->buffer.p_picture )
1614 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1616 while( p_owner->buffer.p_audio )
1618 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1620 p_owner->buffer.p_audio = p_audio->p_next;
1621 p_owner->buffer.i_count--;
1623 aout_BufferFree( p_audio );
1625 if( !p_owner->buffer.p_audio )
1626 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1628 while( p_owner->buffer.p_subpic )
1630 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1632 p_owner->buffer.p_subpic = p_subpic->p_next;
1633 p_owner->buffer.i_count--;
1635 subpicture_Delete( p_subpic );
1637 if( !p_owner->buffer.p_subpic )
1638 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1640 if( p_owner->buffer.p_block )
1642 block_ChainRelease( p_owner->buffer.p_block );
1644 p_owner->buffer.i_count = 0;
1645 p_owner->buffer.p_block = NULL;
1646 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1650 /* This function process a block for sout
1652 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1654 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1655 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1656 block_t *p_sout_block;
1658 while( ( p_sout_block =
1659 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1661 if( !p_owner->p_sout_input )
1663 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1665 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1666 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1667 if( p_dec->fmt_in.psz_language )
1669 if( p_owner->sout.psz_language )
1670 free( p_owner->sout.psz_language );
1671 p_owner->sout.psz_language =
1672 strdup( p_dec->fmt_in.psz_language );
1675 p_owner->p_sout_input =
1676 sout_InputNew( p_owner->p_sout,
1679 if( p_owner->p_sout_input == NULL )
1681 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1682 (char *)&p_owner->sout.i_codec );
1683 p_dec->b_error = true;
1685 while( p_sout_block )
1687 block_t *p_next = p_sout_block->p_next;
1688 block_Release( p_sout_block );
1689 p_sout_block = p_next;
1695 while( p_sout_block )
1697 block_t *p_next = p_sout_block->p_next;
1699 p_sout_block->p_next = NULL;
1701 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1703 p_sout_block = p_next;
1706 /* For now it's enough, as only sout impact on this flag */
1707 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1708 p_owner->p_input->p->b_out_pace_control )
1710 msg_Dbg( p_dec, "switching to sync mode" );
1711 p_owner->p_input->p->b_out_pace_control = false;
1713 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1714 !p_owner->p_input->p->b_out_pace_control )
1716 msg_Dbg( p_dec, "switching to async mode" );
1717 p_owner->p_input->p->b_out_pace_control = true;
1722 /* This function process a video block
1724 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1726 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1728 if( p_owner->p_packetizer )
1730 block_t *p_packetized_block;
1731 decoder_t *p_packetizer = p_owner->p_packetizer;
1733 while( (p_packetized_block =
1734 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1736 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1738 es_format_Clean( &p_dec->fmt_in );
1739 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1741 if( p_packetizer->pf_get_cc )
1742 DecoderGetCc( p_dec, p_packetizer );
1744 while( p_packetized_block )
1746 block_t *p_next = p_packetized_block->p_next;
1747 p_packetized_block->p_next = NULL;
1749 DecoderDecodeVideo( p_dec, p_packetized_block );
1751 p_packetized_block = p_next;
1757 DecoderDecodeVideo( p_dec, p_block );
1760 if( b_flush && p_owner->p_vout )
1761 vout_Flush( p_owner->p_vout, 1 );
1764 /* This function process a audio block
1766 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1768 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1770 if( p_owner->p_packetizer )
1772 block_t *p_packetized_block;
1773 decoder_t *p_packetizer = p_owner->p_packetizer;
1775 while( (p_packetized_block =
1776 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1778 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1780 es_format_Clean( &p_dec->fmt_in );
1781 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1784 while( p_packetized_block )
1786 block_t *p_next = p_packetized_block->p_next;
1787 p_packetized_block->p_next = NULL;
1789 DecoderDecodeAudio( p_dec, p_packetized_block );
1791 p_packetized_block = p_next;
1797 DecoderDecodeAudio( p_dec, p_block );
1800 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1801 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1804 /* This function process a subtitle block
1806 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1808 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1809 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1811 input_thread_t *p_input = p_owner->p_input;
1812 vout_thread_t *p_vout;
1813 subpicture_t *p_spu;
1815 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1817 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1818 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1819 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1821 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1822 if( p_vout && p_owner->p_spu_vout == p_vout )
1824 /* Preroll does not work very well with subtitle */
1825 if( p_spu->i_start > 0 &&
1826 p_spu->i_start < p_owner->i_preroll_end &&
1827 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1829 subpicture_Delete( p_spu );
1833 DecoderPlaySpu( p_dec, p_spu, b_telx );
1838 subpicture_Delete( p_spu );
1841 vlc_object_release( p_vout );
1844 if( b_flush && p_owner->p_spu_vout )
1846 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1848 if( p_vout && p_owner->p_spu_vout == p_vout )
1849 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1850 p_owner->i_spu_channel );
1853 vlc_object_release( p_vout );
1860 * \param p_dec the decoder object
1861 * \param p_block the block to decode
1862 * \return VLC_SUCCESS or an error code
1864 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1866 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1867 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1869 if( p_block && p_block->i_buffer <= 0 )
1871 assert( !b_flush_request );
1872 block_Release( p_block );
1876 int canc = vlc_savecancel();
1878 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1881 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1883 DecoderProcessSout( p_dec, p_block );
1888 bool b_flush = false;
1892 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1893 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1895 b_flush = !b_flushing && b_flush_request;
1897 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1900 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1902 DecoderProcessAudio( p_dec, p_block, b_flush );
1904 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1906 DecoderProcessVideo( p_dec, p_block, b_flush );
1908 else if( p_dec->fmt_in.i_cat == SPU_ES )
1910 DecoderProcessSpu( p_dec, p_block, b_flush );
1914 msg_Err( p_dec, "unknown ES format" );
1915 p_dec->b_error = true;
1920 if( b_flush_request )
1922 vlc_mutex_lock( &p_owner->lock );
1923 DecoderFlushBuffering( p_dec );
1924 vlc_mutex_unlock( &p_owner->lock );
1926 DecoderSignalFlushed( p_dec );
1928 vlc_restorecancel( canc );
1930 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1934 * Destroys a decoder object
1936 * \param p_dec the decoder object
1939 static void DeleteDecoder( decoder_t * p_dec )
1941 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1943 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1944 (char*)&p_dec->fmt_in.i_codec,
1945 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1947 /* Free all packets still in the decoder fifo. */
1948 block_FifoEmpty( p_owner->p_fifo );
1949 block_FifoRelease( p_owner->p_fifo );
1952 vlc_mutex_lock( &p_owner->lock );
1953 DecoderFlushBuffering( p_dec );
1954 vlc_mutex_unlock( &p_owner->lock );
1957 if( p_owner->p_aout_input )
1958 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1959 if( p_owner->p_aout )
1961 vlc_object_release( p_owner->p_aout );
1962 p_owner->p_aout = NULL;
1964 if( p_owner->p_vout )
1966 /* Hack to make sure all the the pictures are freed by the decoder */
1967 vout_FixLeaks( p_owner->p_vout, true );
1969 /* We are about to die. Reattach video output to p_vlc. */
1970 vout_Request( p_dec, p_owner->p_vout, NULL );
1971 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1975 if( p_owner->p_sout_input )
1977 sout_InputDelete( p_owner->p_sout_input );
1978 es_format_Clean( &p_owner->sout );
1982 if( p_dec->fmt_in.i_cat == SPU_ES )
1984 vout_thread_t *p_vout;
1986 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1987 if( p_vout && p_owner->p_spu_vout == p_vout )
1989 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1990 p_owner->i_spu_channel );
1991 vlc_object_release( p_vout );
1995 es_format_Clean( &p_dec->fmt_in );
1996 es_format_Clean( &p_dec->fmt_out );
1998 if( p_owner->p_packetizer )
2000 module_unneed( p_owner->p_packetizer,
2001 p_owner->p_packetizer->p_module );
2002 es_format_Clean( &p_owner->p_packetizer->fmt_in );
2003 es_format_Clean( &p_owner->p_packetizer->fmt_out );
2004 vlc_object_detach( p_owner->p_packetizer );
2005 vlc_object_release( p_owner->p_packetizer );
2008 vlc_cond_destroy( &p_owner->wait );
2009 vlc_mutex_destroy( &p_owner->lock );
2011 vlc_object_detach( p_dec );
2016 /*****************************************************************************
2017 * Buffers allocation callbacks for the decoders
2018 *****************************************************************************/
2019 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2021 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2022 aout_buffer_t *p_buffer;
2024 if( p_owner->p_aout_input != NULL &&
2025 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2026 p_dec->fmt_out.audio.i_original_channels !=
2027 p_owner->audio.i_original_channels ||
2028 p_dec->fmt_out.audio.i_bytes_per_frame !=
2029 p_owner->audio.i_bytes_per_frame ) )
2031 aout_input_t *p_aout_input = p_owner->p_aout_input;
2033 /* Parameters changed, restart the aout */
2034 vlc_mutex_lock( &p_owner->lock );
2036 DecoderFlushBuffering( p_dec );
2038 p_owner->p_aout_input = NULL;
2039 aout_DecDelete( p_owner->p_aout, p_aout_input );
2041 vlc_mutex_unlock( &p_owner->lock );
2044 if( p_owner->p_aout_input == NULL )
2046 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2047 audio_sample_format_t format;
2048 aout_input_t *p_aout_input;
2049 aout_instance_t *p_aout;
2051 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2052 p_owner->audio = p_dec->fmt_out.audio;
2054 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2055 if( i_force_dolby &&
2056 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2057 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2059 if( i_force_dolby == 1 )
2061 format.i_original_channels = format.i_original_channels |
2062 AOUT_CHAN_DOLBYSTEREO;
2064 else /* i_force_dolby == 2 */
2066 format.i_original_channels = format.i_original_channels &
2067 ~AOUT_CHAN_DOLBYSTEREO;
2071 p_aout = p_owner->p_aout;
2072 p_aout_input = aout_DecNew( p_dec, &p_aout,
2073 &format, &p_dec->fmt_out.audio_replay_gain );
2075 vlc_mutex_lock( &p_owner->lock );
2076 p_owner->p_aout = p_aout;
2077 p_owner->p_aout_input = p_aout_input;
2078 vlc_mutex_unlock( &p_owner->lock );
2080 if( p_owner->p_aout_input == NULL )
2082 msg_Err( p_dec, "failed to create audio output" );
2083 p_dec->b_error = true;
2086 p_dec->fmt_out.audio.i_bytes_per_frame =
2087 p_owner->audio.i_bytes_per_frame;
2090 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2095 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2097 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2099 aout_DecDeleteBuffer( p_owner->p_aout,
2100 p_owner->p_aout_input, p_buffer );
2104 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2106 static picture_t *vout_new_buffer( decoder_t *p_dec )
2108 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2110 if( p_owner->p_vout == NULL ||
2111 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2112 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2113 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2114 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2116 vout_thread_t *p_vout;
2118 if( !p_dec->fmt_out.video.i_width ||
2119 !p_dec->fmt_out.video.i_height )
2121 /* Can't create a new vout without display size */
2125 if( !p_dec->fmt_out.video.i_visible_width ||
2126 !p_dec->fmt_out.video.i_visible_height )
2128 if( p_dec->fmt_in.video.i_visible_width &&
2129 p_dec->fmt_in.video.i_visible_height )
2131 p_dec->fmt_out.video.i_visible_width =
2132 p_dec->fmt_in.video.i_visible_width;
2133 p_dec->fmt_out.video.i_visible_height =
2134 p_dec->fmt_in.video.i_visible_height;
2138 p_dec->fmt_out.video.i_visible_width =
2139 p_dec->fmt_out.video.i_width;
2140 p_dec->fmt_out.video.i_visible_height =
2141 p_dec->fmt_out.video.i_height;
2145 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2146 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2148 p_dec->fmt_out.video.i_visible_height = 1080;
2149 p_dec->fmt_out.video.i_sar_num *= 135;
2150 p_dec->fmt_out.video.i_sar_den *= 136;
2151 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2154 if( !p_dec->fmt_out.video.i_sar_num ||
2155 !p_dec->fmt_out.video.i_sar_den )
2157 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2158 p_dec->fmt_out.video.i_visible_height;
2160 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2161 p_dec->fmt_out.video.i_visible_width;
2164 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2165 &p_dec->fmt_out.video.i_sar_den,
2166 p_dec->fmt_out.video.i_sar_num,
2167 p_dec->fmt_out.video.i_sar_den, 50000 );
2169 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2170 p_owner->video = p_dec->fmt_out.video;
2172 vlc_mutex_lock( &p_owner->lock );
2174 DecoderFlushBuffering( p_dec );
2176 p_vout = p_owner->p_vout;
2177 p_owner->p_vout = NULL;
2178 vlc_mutex_unlock( &p_owner->lock );
2180 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2182 vlc_mutex_lock( &p_owner->lock );
2183 p_owner->p_vout = p_vout;
2184 vlc_mutex_unlock( &p_owner->lock );
2186 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2187 if( p_vout == NULL )
2189 msg_Err( p_dec, "failed to create video output" );
2190 p_dec->b_error = true;
2194 if( p_owner->video.i_rmask )
2195 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2196 if( p_owner->video.i_gmask )
2197 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2198 if( p_owner->video.i_bmask )
2199 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2202 /* Get a new picture
2206 picture_t *p_picture;
2208 if( p_dec->b_die || p_dec->b_error )
2211 /* The video filter chain required that there is always 1 free buffer
2212 * that it will use as temporary one. It will release the temporary
2213 * buffer once its work is done, so this check is safe even if we don't
2214 * lock around both count() and create().
2216 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2218 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2223 if( DecoderIsFlushing( p_dec ) )
2227 DecoderSignalBuffering( p_dec, true );
2229 /* Check the decoder doesn't leak pictures */
2230 vout_FixLeaks( p_owner->p_vout, false );
2232 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2233 msleep( VOUT_OUTMEM_SLEEP );
2237 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2239 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2242 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2244 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2247 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2249 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2252 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2254 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2255 vout_thread_t *p_vout = NULL;
2256 subpicture_t *p_subpic;
2257 int i_attempts = 30;
2259 while( i_attempts-- )
2261 if( p_dec->b_die || p_dec->b_error )
2264 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2268 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2273 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2277 if( p_owner->p_spu_vout != p_vout )
2279 vlc_mutex_lock( &p_owner->lock );
2281 DecoderFlushBuffering( p_dec );
2283 vlc_mutex_unlock( &p_owner->lock );
2285 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2286 &p_owner->i_spu_channel );
2287 p_owner->i_spu_order = 0;
2288 p_owner->p_spu_vout = p_vout;
2291 p_subpic = subpicture_New();
2294 p_subpic->i_channel = p_owner->i_spu_channel;
2295 p_subpic->i_order = p_owner->i_spu_order++;
2296 p_subpic->b_subtitle = true;
2299 vlc_object_release( p_vout );
2304 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2306 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2307 vout_thread_t *p_vout = NULL;
2309 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2310 if( !p_vout || p_owner->p_spu_vout != p_vout )
2313 vlc_object_release( p_vout );
2314 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2318 subpicture_Delete( p_subpic );
2320 vlc_object_release( p_vout );