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;
150 decoder_t *pp_decoder[4];
157 #define DECODER_MAX_BUFFERING_COUNT (4)
158 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
159 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
161 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
162 * a bogus PTS and won't be displayed */
163 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
166 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
169 /*****************************************************************************
171 *****************************************************************************/
172 picture_t *decoder_NewPicture( decoder_t *p_decoder )
174 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
176 msg_Warn( p_decoder, "can't get output picture" );
179 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
181 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
183 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
185 p_decoder->pf_picture_link( p_decoder, p_picture );
187 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
189 p_decoder->pf_picture_unlink( p_decoder, p_picture );
192 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
194 if( !p_decoder->pf_aout_buffer_new )
196 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
198 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
200 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
203 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
205 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
207 msg_Warn( p_decoder, "can't get output subpicture" );
210 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
212 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
215 /* decoder_GetInputAttachments:
217 int decoder_GetInputAttachments( decoder_t *p_dec,
218 input_attachment_t ***ppp_attachment,
221 if( !p_dec->pf_get_attachments )
224 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
226 /* decoder_GetDisplayDate:
228 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
230 if( !p_dec->pf_get_display_date )
233 return p_dec->pf_get_display_date( p_dec, i_ts );
235 /* decoder_GetDisplayRate:
237 int decoder_GetDisplayRate( decoder_t *p_dec )
239 if( !p_dec->pf_get_display_rate )
240 return INPUT_RATE_DEFAULT;
242 return p_dec->pf_get_display_rate( p_dec );
246 * Spawns a new decoder thread
248 * \param p_input the input thread
249 * \param p_es the es descriptor
250 * \return the spawned decoder object
252 decoder_t *input_DecoderNew( input_thread_t *p_input,
253 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
255 decoder_t *p_dec = NULL;
259 /* If we are in sout mode, search for packetizer module */
262 /* Create the decoder configuration structure */
263 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
266 msg_Err( p_input, "could not create packetizer" );
267 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
268 _("VLC could not open the packetizer module.") );
275 /* Create the decoder configuration structure */
276 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
279 msg_Err( p_input, "could not create decoder" );
280 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
281 _("VLC could not open the decoder module.") );
286 if( !p_dec->p_module )
288 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
290 DeleteDecoder( p_dec );
291 vlc_object_release( p_dec );
295 p_dec->p_owner->p_clock = p_clock;
297 if( fmt->i_cat == AUDIO_ES )
298 i_priority = VLC_THREAD_PRIORITY_AUDIO;
300 i_priority = VLC_THREAD_PRIORITY_VIDEO;
302 /* Spawn the decoder thread */
303 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
304 i_priority, false ) )
306 msg_Err( p_dec, "cannot spawn decoder thread" );
307 module_unneed( p_dec, p_dec->p_module );
308 DeleteDecoder( p_dec );
309 vlc_object_release( p_dec );
317 * Kills a decoder thread and waits until it's finished
319 * \param p_input the input thread
320 * \param p_es the es descriptor
323 void input_DecoderDelete( decoder_t *p_dec )
325 decoder_owner_sys_t *p_owner = p_dec->p_owner;
327 vlc_object_kill( p_dec );
329 /* Make sure we aren't paused anymore */
330 vlc_mutex_lock( &p_owner->lock );
331 if( p_owner->b_paused || p_owner->b_buffering )
333 p_owner->b_paused = false;
334 p_owner->b_buffering = false;
335 vlc_cond_signal( &p_owner->wait );
337 vlc_mutex_unlock( &p_owner->lock );
339 vlc_thread_join( p_dec );
340 module_unneed( p_dec, p_dec->p_module );
343 if( p_dec->p_owner->cc.b_supported )
346 for( i = 0; i < 4; i++ )
347 input_DecoderSetCcState( p_dec, false, i );
350 /* Delete decoder configuration */
351 DeleteDecoder( p_dec );
353 /* Delete the decoder */
354 vlc_object_release( p_dec );
358 * Put a block_t in the decoder's fifo.
359 * Thread-safe w.r.t. the decoder. May be a cancellation point.
361 * \param p_dec the decoder object
362 * \param p_block the data block
364 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
366 decoder_owner_sys_t *p_owner = p_dec->p_owner;
368 if( p_owner->p_input->p->b_out_pace_control )
370 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
372 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
374 /* FIXME: ideally we would check the time amount of data
375 * in the FIFO instead of its size. */
376 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
377 "consumed quickly enough), resetting fifo!" );
378 block_FifoEmpty( p_owner->p_fifo );
381 block_FifoPut( p_owner->p_fifo, p_block );
384 bool input_DecoderIsEmpty( decoder_t * p_dec )
386 assert( !p_dec->p_owner->b_buffering );
388 /* FIXME that's not really true */
389 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
392 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
394 decoder_owner_sys_t *p_owner = p_dec->p_owner;
397 vlc_mutex_lock( &p_owner->lock );
398 for( i = 0; i < 4; i++ )
399 pb_present[i] = p_owner->cc.pb_present[i];
400 vlc_mutex_unlock( &p_owner->lock );
402 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
404 decoder_owner_sys_t *p_owner = p_dec->p_owner;
406 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
408 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
413 static const vlc_fourcc_t fcc[4] = {
414 VLC_FOURCC('c', 'c', '1', ' '),
415 VLC_FOURCC('c', 'c', '2', ' '),
416 VLC_FOURCC('c', 'c', '3', ' '),
417 VLC_FOURCC('c', 'c', '4', ' '),
422 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
423 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
426 msg_Err( p_dec, "could not create decoder" );
427 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
428 _("VLC could not open the decoder module.") );
431 else if( !p_cc->p_module )
433 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
434 DeleteDecoder( p_cc );
435 vlc_object_release( p_cc );
438 p_cc->p_owner->p_clock = p_owner->p_clock;
440 vlc_mutex_lock( &p_owner->lock );
441 p_owner->cc.pp_decoder[i_channel] = p_cc;
442 vlc_mutex_unlock( &p_owner->lock );
448 vlc_mutex_lock( &p_owner->lock );
449 p_cc = p_owner->cc.pp_decoder[i_channel];
450 p_owner->cc.pp_decoder[i_channel] = NULL;
451 vlc_mutex_unlock( &p_owner->lock );
455 vlc_object_kill( p_cc );
456 module_unneed( p_cc, p_cc->p_module );
457 DeleteDecoder( p_cc );
458 vlc_object_release( p_cc );
463 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
465 decoder_owner_sys_t *p_owner = p_dec->p_owner;
468 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
471 vlc_mutex_lock( &p_owner->lock );
472 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
473 vlc_mutex_unlock( &p_owner->lock );
477 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
479 decoder_owner_sys_t *p_owner = p_dec->p_owner;
481 vlc_mutex_lock( &p_owner->lock );
483 assert( !p_owner->b_paused || !b_paused );
485 p_owner->b_paused = b_paused;
486 p_owner->pause.i_date = i_date;
487 p_owner->pause.i_ignore = 0;
488 vlc_cond_signal( &p_owner->wait );
490 DecoderOutputChangePause( p_dec, b_paused, i_date );
492 vlc_mutex_unlock( &p_owner->lock );
495 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
497 decoder_owner_sys_t *p_owner = p_dec->p_owner;
499 vlc_mutex_lock( &p_owner->lock );
500 p_owner->i_ts_delay = i_delay;
501 vlc_mutex_unlock( &p_owner->lock );
504 void input_DecoderStartBuffering( decoder_t *p_dec )
506 decoder_owner_sys_t *p_owner = p_dec->p_owner;
508 vlc_mutex_lock( &p_owner->lock );
510 DecoderFlush( p_dec );
512 p_owner->buffer.b_first = true;
513 p_owner->buffer.b_full = false;
514 p_owner->buffer.i_count = 0;
516 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
518 p_owner->buffer.p_picture = NULL;
519 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
521 p_owner->buffer.p_subpic = NULL;
522 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
524 p_owner->buffer.p_audio = NULL;
525 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
527 p_owner->b_buffering = true;
529 vlc_cond_signal( &p_owner->wait );
531 vlc_mutex_unlock( &p_owner->lock );
534 void input_DecoderStopBuffering( decoder_t *p_dec )
536 decoder_owner_sys_t *p_owner = p_dec->p_owner;
538 vlc_mutex_lock( &p_owner->lock );
540 p_owner->b_buffering = false;
542 vlc_cond_signal( &p_owner->wait );
544 vlc_mutex_unlock( &p_owner->lock );
547 void input_DecoderWaitBuffering( decoder_t *p_dec )
549 decoder_owner_sys_t *p_owner = p_dec->p_owner;
551 vlc_mutex_lock( &p_owner->lock );
553 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
555 block_FifoWake( p_owner->p_fifo );
556 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
559 vlc_mutex_unlock( &p_owner->lock );
561 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
563 decoder_owner_sys_t *p_owner = p_dec->p_owner;
567 vlc_mutex_lock( &p_owner->lock );
568 if( p_dec->fmt_in.i_cat == VIDEO_ES )
570 if( p_owner->b_paused && p_owner->p_vout )
572 vout_NextPicture( p_owner->p_vout, pi_duration );
573 p_owner->pause.i_ignore++;
574 vlc_cond_signal( &p_owner->wait );
579 /* TODO subtitle should not be flushed */
580 DecoderFlush( p_dec );
582 vlc_mutex_unlock( &p_owner->lock );
585 /*****************************************************************************
587 *****************************************************************************/
588 static int DecoderGetInputAttachments( decoder_t *p_dec,
589 input_attachment_t ***ppp_attachment,
592 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
593 ppp_attachment, pi_attachment );
595 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
597 decoder_owner_sys_t *p_owner = p_dec->p_owner;
599 vlc_mutex_lock( &p_owner->lock );
600 if( p_owner->b_buffering || p_owner->b_paused )
602 vlc_mutex_unlock( &p_owner->lock );
604 if( !p_owner->p_clock || !i_ts )
607 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
609 static int DecoderGetDisplayRate( decoder_t *p_dec )
611 decoder_owner_sys_t *p_owner = p_dec->p_owner;
613 if( !p_owner->p_clock )
614 return INPUT_RATE_DEFAULT;
615 return input_clock_GetRate( p_owner->p_clock );
619 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
621 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
622 "VLC probably does not support this sound or video format.",
624 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
625 _("VLC does not support the audio or video format \"%4.4s\". "
626 "Unfortunately there is no way for you to fix this."), (char*)&codec );
631 * Create a decoder object
633 * \param p_input the input thread
634 * \param p_es the es descriptor
635 * \param i_object_type Object type as define in include/vlc_objects.h
636 * \return the decoder object
638 static decoder_t * CreateDecoder( input_thread_t *p_input,
639 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
642 decoder_owner_sys_t *p_owner;
645 p_dec = vlc_object_create( p_input, i_object_type );
649 p_dec->pf_decode_audio = NULL;
650 p_dec->pf_decode_video = NULL;
651 p_dec->pf_decode_sub = NULL;
652 p_dec->pf_get_cc = NULL;
653 p_dec->pf_packetize = NULL;
655 /* Initialize the decoder fifo */
656 p_dec->p_module = NULL;
658 memset( &null_es_format, 0, sizeof(es_format_t) );
659 es_format_Copy( &p_dec->fmt_in, fmt );
660 es_format_Copy( &p_dec->fmt_out, &null_es_format );
662 /* Allocate our private structure for the decoder */
663 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
664 if( p_dec->p_owner == NULL )
666 vlc_object_release( p_dec );
669 p_dec->p_owner->i_preroll_end = -1;
670 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
671 p_dec->p_owner->p_input = p_input;
672 p_dec->p_owner->p_aout = NULL;
673 p_dec->p_owner->p_aout_input = NULL;
674 p_dec->p_owner->p_vout = NULL;
675 p_dec->p_owner->p_spu_vout = NULL;
676 p_dec->p_owner->i_spu_channel = 0;
677 p_dec->p_owner->i_spu_order = 0;
678 p_dec->p_owner->p_sout = p_sout;
679 p_dec->p_owner->p_sout_input = NULL;
680 p_dec->p_owner->p_packetizer = NULL;
683 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
685 free( p_dec->p_owner );
686 vlc_object_release( p_dec );
690 /* Set buffers allocation callbacks for the decoders */
691 p_dec->pf_aout_buffer_new = aout_new_buffer;
692 p_dec->pf_aout_buffer_del = aout_del_buffer;
693 p_dec->pf_vout_buffer_new = vout_new_buffer;
694 p_dec->pf_vout_buffer_del = vout_del_buffer;
695 p_dec->pf_picture_link = vout_link_picture;
696 p_dec->pf_picture_unlink = vout_unlink_picture;
697 p_dec->pf_spu_buffer_new = spu_new_buffer;
698 p_dec->pf_spu_buffer_del = spu_del_buffer;
700 p_dec->pf_get_attachments = DecoderGetInputAttachments;
701 p_dec->pf_get_display_date = DecoderGetDisplayDate;
702 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
704 vlc_object_attach( p_dec, p_input );
706 /* Find a suitable decoder/packetizer module */
707 if( i_object_type == VLC_OBJECT_DECODER )
708 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
710 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
712 /* Check if decoder requires already packetized data */
713 if( i_object_type == VLC_OBJECT_DECODER &&
714 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
716 p_dec->p_owner->p_packetizer =
717 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
718 if( p_dec->p_owner->p_packetizer )
720 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
723 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
726 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
728 p_dec->p_owner->p_packetizer->p_module =
729 module_need( p_dec->p_owner->p_packetizer,
730 "packetizer", "$packetizer", 0 );
732 if( !p_dec->p_owner->p_packetizer->p_module )
734 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
735 vlc_object_detach( p_dec->p_owner->p_packetizer );
736 vlc_object_release( p_dec->p_owner->p_packetizer );
741 /* Copy ourself the input replay gain */
742 if( fmt->i_cat == AUDIO_ES )
744 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
746 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
748 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
749 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
751 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
753 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
754 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
760 vlc_mutex_init( &p_owner->lock );
761 vlc_cond_init( &p_owner->wait );
763 p_owner->b_paused = false;
764 p_owner->pause.i_date = 0;
765 p_owner->pause.i_ignore = 0;
767 p_owner->b_buffering = false;
768 p_owner->buffer.b_first = true;
769 p_owner->buffer.b_full = false;
770 p_owner->buffer.i_count = 0;
771 p_owner->buffer.p_picture = NULL;
772 p_owner->buffer.p_subpic = NULL;
773 p_owner->buffer.p_audio = NULL;
775 p_owner->b_flushing = false;
778 p_owner->cc.b_supported = false;
779 if( i_object_type == VLC_OBJECT_DECODER )
781 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
782 p_owner->cc.b_supported = true;
783 if( p_dec->pf_get_cc )
784 p_owner->cc.b_supported = true;
787 for( i = 0; i < 4; i++ )
789 p_owner->cc.pb_present[i] = false;
790 p_owner->cc.pp_decoder[i] = NULL;
792 p_owner->i_ts_delay = 0;
797 * The decoding main loop
799 * \param p_dec the decoder
801 static void *DecoderThread( vlc_object_t *p_this )
803 decoder_t *p_dec = (decoder_t *)p_this;
804 decoder_owner_sys_t *p_owner = p_dec->p_owner;
806 /* The decoder's main loop */
809 block_t *p_block = block_FifoGet( p_owner->p_fifo );
810 /* Make sure there is no cancellation point other than this one^^.
811 * If you need one, be sure to push cleanup of p_block. */
812 DecoderSignalBuffering( p_dec, p_block == NULL );
817 { /* Trash all received PES packets */
818 block_Release( p_block );
820 else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
827 DecoderSignalBuffering( p_dec, true );
831 static void DecoderFlush( decoder_t *p_dec )
833 decoder_owner_sys_t *p_owner = p_dec->p_owner;
836 vlc_assert_locked( &p_owner->lock );
839 block_FifoEmpty( p_owner->p_fifo );
841 /* Monitor for flush end */
842 p_owner->b_flushing = true;
843 vlc_cond_signal( &p_owner->wait );
845 /* Send a special block */
846 p_null = block_New( p_dec, 128 );
849 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
850 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
851 if( !p_dec->fmt_in.b_packetized )
852 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
853 memset( p_null->p_buffer, 0, p_null->i_buffer );
855 input_DecoderDecode( p_dec, p_null );
858 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
859 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
862 static void DecoderSignalFlushed( decoder_t *p_dec )
864 decoder_owner_sys_t *p_owner = p_dec->p_owner;
866 vlc_mutex_lock( &p_owner->lock );
868 if( p_owner->b_flushing )
870 p_owner->b_flushing = false;
871 vlc_cond_signal( &p_owner->wait );
874 vlc_mutex_unlock( &p_owner->lock );
877 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
879 decoder_owner_sys_t *p_owner = p_dec->p_owner;
881 vlc_mutex_lock( &p_owner->lock );
883 if( p_owner->b_buffering )
886 p_owner->buffer.b_full = true;
887 vlc_cond_signal( &p_owner->wait );
890 vlc_mutex_unlock( &p_owner->lock );
893 static bool DecoderIsFlushing( decoder_t *p_dec )
895 decoder_owner_sys_t *p_owner = p_dec->p_owner;
898 vlc_mutex_lock( &p_owner->lock );
900 b_flushing = p_owner->b_flushing;
902 vlc_mutex_unlock( &p_owner->lock );
907 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
909 decoder_owner_sys_t *p_owner = p_dec->p_owner;
911 vlc_assert_locked( &p_owner->lock );
913 while( !p_owner->b_flushing )
915 if( p_owner->b_paused )
917 if( p_owner->b_buffering && !p_owner->buffer.b_full )
919 if( p_owner->pause.i_ignore > 0 )
921 p_owner->pause.i_ignore--;
927 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
930 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
934 *pb_reject = p_owner->b_flushing;
937 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
939 decoder_owner_sys_t *p_owner = p_dec->p_owner;
941 vlc_assert_locked( &p_owner->lock );
943 /* XXX only audio and video output have to be paused.
944 * - for sout it is useless
945 * - for subs, it is done by the vout
947 if( p_dec->fmt_in.i_cat == AUDIO_ES )
949 if( p_owner->p_aout && p_owner->p_aout_input )
950 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
953 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
955 if( p_owner->p_vout )
956 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
959 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
961 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
962 *pi_preroll = INT64_MAX;
963 else if( p->i_pts > 0 )
964 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
965 else if( p->i_dts > 0 )
966 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
969 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
971 mtime_t current_date = mdate();
973 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
974 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
976 /* ETSI EN 300 472 Annex A : do not take into account the PTS
977 * for teletext streams. */
978 return current_date + 400000 + i_ts_delay;
983 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
984 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
986 decoder_owner_sys_t *p_owner = p_dec->p_owner;
987 input_clock_t *p_clock = p_owner->p_clock;
990 vlc_assert_locked( &p_owner->lock );
992 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
993 const mtime_t i_es_delay = p_owner->i_ts_delay;
997 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1000 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1001 *pi_ts0 + i_es_delay );
1002 if( pi_ts1 && *pi_ts1 > 0 )
1003 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1004 *pi_ts1 + i_es_delay );
1006 /* Do not create ephemere data because of rounding errors */
1007 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1011 i_rate = input_clock_GetRate( p_clock );
1014 *pi_duration = ( *pi_duration * i_rate +
1015 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1022 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
1023 if( pi_ts1 && *pi_ts1 <= 0 )
1029 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
1030 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
1034 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1035 int *pi_played_sum, int *pi_lost_sum )
1037 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1038 aout_instance_t *p_aout = p_owner->p_aout;
1039 aout_input_t *p_aout_input = p_owner->p_aout_input;
1042 if( p_audio->start_date <= 0 )
1044 msg_Warn( p_dec, "non-dated audio buffer received" );
1046 aout_BufferFree( p_audio );
1051 vlc_mutex_lock( &p_owner->lock );
1053 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1055 p_audio->p_next = NULL;
1057 *p_owner->buffer.pp_audio_next = p_audio;
1058 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1060 p_owner->buffer.i_count++;
1061 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1062 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1064 p_owner->buffer.b_full = true;
1065 vlc_cond_signal( &p_owner->wait );
1071 bool b_has_more = false;
1073 DecoderWaitUnblock( p_dec, &b_reject );
1075 if( p_owner->b_buffering )
1077 vlc_mutex_unlock( &p_owner->lock );
1082 if( p_owner->buffer.p_audio )
1084 p_audio = p_owner->buffer.p_audio;
1086 p_owner->buffer.p_audio = p_audio->p_next;
1087 p_owner->buffer.i_count--;
1089 b_has_more = p_owner->buffer.p_audio != NULL;
1091 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1095 int i_rate = INPUT_RATE_DEFAULT;
1098 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1099 &i_rate, &i_delay, false );
1101 vlc_mutex_unlock( &p_owner->lock );
1104 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1106 if( !p_aout || !p_aout_input ||
1107 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1108 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1109 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1114 /* Wait if we are too early
1115 * FIXME that's plain ugly to do it here */
1116 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1118 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1119 *pi_played_sum += 1;
1120 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1124 if( p_audio->start_date <= 0 )
1126 msg_Warn( p_dec, "non-dated audio buffer received" );
1128 else if( p_audio->start_date > i_max_date )
1130 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1131 p_audio->start_date - mdate() );
1134 aout_BufferFree( p_audio );
1140 vlc_mutex_lock( &p_owner->lock );
1141 if( !p_owner->buffer.p_audio )
1143 vlc_mutex_unlock( &p_owner->lock );
1149 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1151 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1152 input_thread_t *p_input = p_owner->p_input;
1153 aout_buffer_t *p_aout_buf;
1158 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1160 aout_instance_t *p_aout = p_owner->p_aout;
1161 aout_input_t *p_aout_input = p_owner->p_aout_input;
1167 /* It prevent freezing VLC in case of broken decoder */
1168 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1170 block_Release( p_block );
1175 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1177 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1181 if( p_owner->i_preroll_end > 0 )
1183 msg_Dbg( p_dec, "End of audio preroll" );
1184 if( p_owner->p_aout && p_owner->p_aout_input )
1185 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1187 p_owner->i_preroll_end = -1;
1190 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1193 /* Update ugly stat */
1194 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1196 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1198 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1200 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1202 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1205 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1208 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1210 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1216 assert( p_dec_cc->pf_get_cc != NULL );
1218 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1219 if( !p_owner->cc.b_supported )
1222 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1226 vlc_mutex_lock( &p_owner->lock );
1227 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1229 p_owner->cc.pb_present[i] |= pb_present[i];
1230 if( p_owner->cc.pp_decoder[i] )
1234 for( i = 0; i < 4; i++ )
1236 if( !p_owner->cc.pp_decoder[i] )
1239 if( i_cc_decoder > 1 )
1240 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1242 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1245 vlc_mutex_unlock( &p_owner->lock );
1248 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1249 int *pi_played_sum, int *pi_lost_sum )
1251 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1252 vout_thread_t *p_vout = p_owner->p_vout;
1253 bool b_first_buffered;
1255 if( p_picture->date <= 0 )
1257 msg_Warn( p_vout, "non-dated video buffer received" );
1259 vout_DropPicture( p_vout, p_picture );
1264 vlc_mutex_lock( &p_owner->lock );
1266 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1268 p_picture->p_next = NULL;
1270 *p_owner->buffer.pp_picture_next = p_picture;
1271 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1273 p_owner->buffer.i_count++;
1274 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1275 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1277 p_owner->buffer.b_full = true;
1278 vlc_cond_signal( &p_owner->wait );
1281 b_first_buffered = p_owner->buffer.p_picture != NULL;
1283 for( ;; b_first_buffered = false )
1285 bool b_has_more = false;
1289 DecoderWaitUnblock( p_dec, &b_reject );
1291 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1293 vlc_mutex_unlock( &p_owner->lock );
1296 bool b_buffering_first = p_owner->b_buffering;
1299 if( p_owner->buffer.p_picture )
1301 p_picture = p_owner->buffer.p_picture;
1303 p_owner->buffer.p_picture = p_picture->p_next;
1304 p_owner->buffer.i_count--;
1306 b_has_more = p_owner->buffer.p_picture != NULL;
1308 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1312 int i_rate = INPUT_RATE_DEFAULT;
1315 if( b_buffering_first )
1317 assert( p_owner->buffer.b_first );
1318 assert( !p_owner->buffer.i_count );
1319 msg_Dbg( p_dec, "Received first picture" );
1320 p_owner->buffer.b_first = false;
1321 p_picture->b_force = true;
1323 if( p_owner->p_clock )
1324 i_rate = input_clock_GetRate( p_owner->p_clock );
1326 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1327 &i_rate, &i_delay, false );
1329 vlc_mutex_unlock( &p_owner->lock );
1332 const mtime_t i_max_date = mdate() + i_delay + DECODER_BOGUS_VIDEO_DELAY;
1334 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1339 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1341 /* Be sure to not display old picture after our own */
1342 vout_Flush( p_vout, p_picture->date );
1343 p_owner->i_last_rate = i_rate;
1345 vout_DisplayPicture( p_vout, p_picture );
1349 if( p_picture->date <= 0 )
1351 msg_Warn( p_vout, "non-dated video buffer received" );
1355 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1356 p_picture->date - mdate() );
1359 vout_DropPicture( p_vout, p_picture );
1363 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1365 *pi_played_sum += i_tmp_display;
1366 *pi_lost_sum += i_tmp_lost;
1368 if( !b_has_more || b_buffering_first )
1371 vlc_mutex_lock( &p_owner->lock );
1372 if( !p_owner->buffer.p_picture )
1374 vlc_mutex_unlock( &p_owner->lock );
1380 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1382 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1383 input_thread_t *p_input = p_owner->p_input;
1387 int i_displayed = 0;
1389 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1391 vout_thread_t *p_vout = p_owner->p_vout;
1394 /* It prevent freezing VLC in case of broken decoder */
1395 vout_DropPicture( p_vout, p_pic );
1397 block_Release( p_block );
1403 if( p_pic->date < p_owner->i_preroll_end )
1405 vout_DropPicture( p_vout, p_pic );
1409 if( p_owner->i_preroll_end > 0 )
1411 msg_Dbg( p_dec, "End of video preroll" );
1413 vout_Flush( p_vout, 1 );
1415 p_owner->i_preroll_end = -1;
1418 if( p_dec->pf_get_cc &&
1419 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1420 DecoderGetCc( p_dec, p_dec );
1422 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1424 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1426 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1428 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1430 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1433 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1436 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1440 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1443 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1444 vout_thread_t *p_vout = p_owner->p_spu_vout;
1447 if( p_subpic->i_start <= 0 )
1449 msg_Warn( p_dec, "non-dated spu buffer received" );
1450 subpicture_Delete( p_subpic );
1455 vlc_mutex_lock( &p_owner->lock );
1457 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1459 p_subpic->p_next = NULL;
1461 *p_owner->buffer.pp_subpic_next = p_subpic;
1462 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1464 p_owner->buffer.i_count++;
1465 /* XXX it is important to be full after the first one */
1466 if( p_owner->buffer.i_count > 0 )
1468 p_owner->buffer.b_full = true;
1469 vlc_cond_signal( &p_owner->wait );
1475 bool b_has_more = false;
1477 DecoderWaitUnblock( p_dec, &b_reject );
1479 if( p_owner->b_buffering )
1481 vlc_mutex_unlock( &p_owner->lock );
1486 if( p_owner->buffer.p_subpic )
1488 p_subpic = p_owner->buffer.p_subpic;
1490 p_owner->buffer.p_subpic = p_subpic->p_next;
1491 p_owner->buffer.i_count--;
1493 b_has_more = p_owner->buffer.p_subpic != NULL;
1495 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1499 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1500 NULL, NULL, b_telx );
1502 vlc_mutex_unlock( &p_owner->lock );
1505 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1507 subpicture_Delete( p_subpic );
1511 vlc_mutex_lock( &p_owner->lock );
1512 if( !p_owner->buffer.p_subpic )
1514 vlc_mutex_unlock( &p_owner->lock );
1520 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1523 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1525 assert( p_owner->p_clock );
1527 vlc_mutex_lock( &p_owner->lock );
1530 DecoderWaitUnblock( p_dec, &b_reject );
1532 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1533 &p_sout_block->i_rate, NULL, b_telx );
1535 vlc_mutex_unlock( &p_owner->lock );
1537 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1541 static void DecoderFlushBuffering( decoder_t *p_dec )
1543 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1545 vlc_assert_locked( &p_owner->lock );
1547 while( p_owner->buffer.p_picture )
1549 picture_t *p_picture = p_owner->buffer.p_picture;
1551 p_owner->buffer.p_picture = p_picture->p_next;
1552 p_owner->buffer.i_count--;
1554 if( p_owner->p_vout )
1555 vout_DropPicture( p_owner->p_vout, p_picture );
1557 if( !p_owner->buffer.p_picture )
1558 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1560 while( p_owner->buffer.p_audio )
1562 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1564 p_owner->buffer.p_audio = p_audio->p_next;
1565 p_owner->buffer.i_count--;
1567 aout_BufferFree( p_audio );
1569 if( !p_owner->buffer.p_audio )
1570 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1572 while( p_owner->buffer.p_subpic )
1574 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1576 p_owner->buffer.p_subpic = p_subpic->p_next;
1577 p_owner->buffer.i_count--;
1579 subpicture_Delete( p_subpic );
1581 if( !p_owner->buffer.p_subpic )
1582 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1586 /* This function process a block for sout
1588 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1590 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1591 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1592 block_t *p_sout_block;
1594 while( ( p_sout_block =
1595 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1597 if( !p_owner->p_sout_input )
1599 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1601 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1602 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1603 if( p_dec->fmt_in.psz_language )
1605 if( p_owner->sout.psz_language )
1606 free( p_owner->sout.psz_language );
1607 p_owner->sout.psz_language =
1608 strdup( p_dec->fmt_in.psz_language );
1611 p_owner->p_sout_input =
1612 sout_InputNew( p_owner->p_sout,
1615 if( p_owner->p_sout_input == NULL )
1617 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1618 (char *)&p_owner->sout.i_codec );
1619 p_dec->b_error = true;
1621 while( p_sout_block )
1623 block_t *p_next = p_sout_block->p_next;
1624 block_Release( p_sout_block );
1625 p_sout_block = p_next;
1631 while( p_sout_block )
1633 block_t *p_next = p_sout_block->p_next;
1635 p_sout_block->p_next = NULL;
1637 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1639 p_sout_block = p_next;
1642 /* For now it's enough, as only sout impact on this flag */
1643 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1644 p_owner->p_input->p->b_out_pace_control )
1646 msg_Dbg( p_dec, "switching to sync mode" );
1647 p_owner->p_input->p->b_out_pace_control = false;
1649 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1650 !p_owner->p_input->p->b_out_pace_control )
1652 msg_Dbg( p_dec, "switching to async mode" );
1653 p_owner->p_input->p->b_out_pace_control = true;
1658 /* This function process a video block
1660 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1662 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1664 if( p_owner->p_packetizer )
1666 block_t *p_packetized_block;
1667 decoder_t *p_packetizer = p_owner->p_packetizer;
1669 while( (p_packetized_block =
1670 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1672 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1674 es_format_Clean( &p_dec->fmt_in );
1675 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1677 if( p_packetizer->pf_get_cc )
1678 DecoderGetCc( p_dec, p_packetizer );
1680 while( p_packetized_block )
1682 block_t *p_next = p_packetized_block->p_next;
1683 p_packetized_block->p_next = NULL;
1685 DecoderDecodeVideo( p_dec, p_packetized_block );
1687 p_packetized_block = p_next;
1693 DecoderDecodeVideo( p_dec, p_block );
1696 if( b_flush && p_owner->p_vout )
1697 vout_Flush( p_owner->p_vout, 1 );
1700 /* This function process a audio block
1702 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1704 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1706 if( p_owner->p_packetizer )
1708 block_t *p_packetized_block;
1709 decoder_t *p_packetizer = p_owner->p_packetizer;
1711 while( (p_packetized_block =
1712 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1714 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1716 es_format_Clean( &p_dec->fmt_in );
1717 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1720 while( p_packetized_block )
1722 block_t *p_next = p_packetized_block->p_next;
1723 p_packetized_block->p_next = NULL;
1725 DecoderDecodeAudio( p_dec, p_packetized_block );
1727 p_packetized_block = p_next;
1733 DecoderDecodeAudio( p_dec, p_block );
1736 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1737 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1740 /* This function process a subtitle block
1742 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1744 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1745 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1747 input_thread_t *p_input = p_owner->p_input;
1748 vout_thread_t *p_vout;
1749 subpicture_t *p_spu;
1751 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1753 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1754 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1755 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1757 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1758 if( p_vout && p_owner->p_spu_vout == p_vout )
1760 /* Preroll does not work very well with subtitle */
1761 if( p_spu->i_start > 0 &&
1762 p_spu->i_start < p_owner->i_preroll_end &&
1763 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1765 subpicture_Delete( p_spu );
1769 DecoderPlaySpu( p_dec, p_spu, b_telx );
1774 subpicture_Delete( p_spu );
1777 vlc_object_release( p_vout );
1780 if( b_flush && p_owner->p_spu_vout )
1782 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1784 if( p_vout && p_owner->p_spu_vout == p_vout )
1785 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1786 p_owner->i_spu_channel );
1789 vlc_object_release( p_vout );
1796 * \param p_dec the decoder object
1797 * \param p_block the block to decode
1798 * \return VLC_SUCCESS or an error code
1800 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1802 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1803 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1805 if( p_block && p_block->i_buffer <= 0 )
1807 assert( !b_flush_request );
1808 block_Release( p_block );
1812 int canc = vlc_savecancel();
1814 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1817 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1819 DecoderProcessSout( p_dec, p_block );
1824 bool b_flush = false;
1828 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1829 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1831 b_flush = !b_flushing && b_flush_request;
1833 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1836 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1838 DecoderProcessAudio( p_dec, p_block, b_flush );
1840 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1842 DecoderProcessVideo( p_dec, p_block, b_flush );
1844 else if( p_dec->fmt_in.i_cat == SPU_ES )
1846 DecoderProcessSpu( p_dec, p_block, b_flush );
1850 msg_Err( p_dec, "unknown ES format" );
1851 p_dec->b_error = true;
1856 if( b_flush_request )
1858 vlc_mutex_lock( &p_owner->lock );
1859 DecoderFlushBuffering( p_dec );
1860 vlc_mutex_unlock( &p_owner->lock );
1862 DecoderSignalFlushed( p_dec );
1864 vlc_restorecancel( canc );
1866 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1870 * Destroys a decoder object
1872 * \param p_dec the decoder object
1875 static void DeleteDecoder( decoder_t * p_dec )
1877 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1879 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1880 (char*)&p_dec->fmt_in.i_codec,
1881 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1883 /* Free all packets still in the decoder fifo. */
1884 block_FifoEmpty( p_owner->p_fifo );
1885 block_FifoRelease( p_owner->p_fifo );
1888 vlc_mutex_lock( &p_owner->lock );
1889 DecoderFlushBuffering( p_dec );
1890 vlc_mutex_unlock( &p_owner->lock );
1893 if( p_owner->p_aout_input )
1894 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1895 if( p_owner->p_aout )
1897 vlc_object_release( p_owner->p_aout );
1898 p_owner->p_aout = NULL;
1900 if( p_owner->p_vout )
1902 /* Hack to make sure all the the pictures are freed by the decoder */
1903 vout_FixLeaks( p_owner->p_vout, true );
1905 /* We are about to die. Reattach video output to p_vlc. */
1906 vout_Request( p_dec, p_owner->p_vout, NULL );
1907 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1911 if( p_owner->p_sout_input )
1913 sout_InputDelete( p_owner->p_sout_input );
1914 es_format_Clean( &p_owner->sout );
1918 if( p_dec->fmt_in.i_cat == SPU_ES )
1920 vout_thread_t *p_vout;
1922 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1923 if( p_vout && p_owner->p_spu_vout == p_vout )
1925 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1926 p_owner->i_spu_channel );
1927 vlc_object_release( p_vout );
1931 es_format_Clean( &p_dec->fmt_in );
1932 es_format_Clean( &p_dec->fmt_out );
1934 if( p_owner->p_packetizer )
1936 module_unneed( p_owner->p_packetizer,
1937 p_owner->p_packetizer->p_module );
1938 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1939 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1940 vlc_object_detach( p_owner->p_packetizer );
1941 vlc_object_release( p_owner->p_packetizer );
1944 vlc_cond_destroy( &p_owner->wait );
1945 vlc_mutex_destroy( &p_owner->lock );
1947 vlc_object_detach( p_dec );
1952 /*****************************************************************************
1953 * Buffers allocation callbacks for the decoders
1954 *****************************************************************************/
1955 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1957 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1958 aout_buffer_t *p_buffer;
1960 if( p_owner->p_aout_input != NULL &&
1961 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1962 p_dec->fmt_out.audio.i_original_channels !=
1963 p_owner->audio.i_original_channels ||
1964 p_dec->fmt_out.audio.i_bytes_per_frame !=
1965 p_owner->audio.i_bytes_per_frame ) )
1967 aout_input_t *p_aout_input = p_owner->p_aout_input;
1969 /* Parameters changed, restart the aout */
1970 vlc_mutex_lock( &p_owner->lock );
1972 DecoderFlushBuffering( p_dec );
1974 p_owner->p_aout_input = NULL;
1975 aout_DecDelete( p_owner->p_aout, p_aout_input );
1977 vlc_mutex_unlock( &p_owner->lock );
1980 if( p_owner->p_aout_input == NULL )
1982 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1983 audio_sample_format_t format;
1984 aout_input_t *p_aout_input;
1985 aout_instance_t *p_aout;
1987 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1988 p_owner->audio = p_dec->fmt_out.audio;
1990 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1991 if( i_force_dolby &&
1992 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1993 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1995 if( i_force_dolby == 1 )
1997 format.i_original_channels = format.i_original_channels |
1998 AOUT_CHAN_DOLBYSTEREO;
2000 else /* i_force_dolby == 2 */
2002 format.i_original_channels = format.i_original_channels &
2003 ~AOUT_CHAN_DOLBYSTEREO;
2007 p_aout = p_owner->p_aout;
2008 p_aout_input = aout_DecNew( p_dec, &p_aout,
2009 &format, &p_dec->fmt_out.audio_replay_gain );
2011 vlc_mutex_lock( &p_owner->lock );
2012 p_owner->p_aout = p_aout;
2013 p_owner->p_aout_input = p_aout_input;
2014 vlc_mutex_unlock( &p_owner->lock );
2016 if( p_owner->p_aout_input == NULL )
2018 msg_Err( p_dec, "failed to create audio output" );
2019 p_dec->b_error = true;
2022 p_dec->fmt_out.audio.i_bytes_per_frame =
2023 p_owner->audio.i_bytes_per_frame;
2026 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2031 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2033 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2035 aout_DecDeleteBuffer( p_owner->p_aout,
2036 p_owner->p_aout_input, p_buffer );
2040 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2042 static picture_t *vout_new_buffer( decoder_t *p_dec )
2044 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2046 if( p_owner->p_vout == NULL ||
2047 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2048 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2049 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2050 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2052 vout_thread_t *p_vout;
2054 if( !p_dec->fmt_out.video.i_width ||
2055 !p_dec->fmt_out.video.i_height )
2057 /* Can't create a new vout without display size */
2061 if( !p_dec->fmt_out.video.i_visible_width ||
2062 !p_dec->fmt_out.video.i_visible_height )
2064 if( p_dec->fmt_in.video.i_visible_width &&
2065 p_dec->fmt_in.video.i_visible_height )
2067 p_dec->fmt_out.video.i_visible_width =
2068 p_dec->fmt_in.video.i_visible_width;
2069 p_dec->fmt_out.video.i_visible_height =
2070 p_dec->fmt_in.video.i_visible_height;
2074 p_dec->fmt_out.video.i_visible_width =
2075 p_dec->fmt_out.video.i_width;
2076 p_dec->fmt_out.video.i_visible_height =
2077 p_dec->fmt_out.video.i_height;
2081 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2082 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2084 p_dec->fmt_out.video.i_visible_height = 1080;
2085 p_dec->fmt_out.video.i_sar_num *= 135;
2086 p_dec->fmt_out.video.i_sar_den *= 136;
2087 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2090 if( !p_dec->fmt_out.video.i_sar_num ||
2091 !p_dec->fmt_out.video.i_sar_den )
2093 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2094 p_dec->fmt_out.video.i_visible_height;
2096 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2097 p_dec->fmt_out.video.i_visible_width;
2100 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2101 &p_dec->fmt_out.video.i_sar_den,
2102 p_dec->fmt_out.video.i_sar_num,
2103 p_dec->fmt_out.video.i_sar_den, 50000 );
2105 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2106 p_owner->video = p_dec->fmt_out.video;
2108 vlc_mutex_lock( &p_owner->lock );
2110 DecoderFlushBuffering( p_dec );
2112 p_vout = p_owner->p_vout;
2113 p_owner->p_vout = NULL;
2114 vlc_mutex_unlock( &p_owner->lock );
2116 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2118 vlc_mutex_lock( &p_owner->lock );
2119 p_owner->p_vout = p_vout;
2120 vlc_mutex_unlock( &p_owner->lock );
2122 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2123 if( p_vout == NULL )
2125 msg_Err( p_dec, "failed to create video output" );
2126 p_dec->b_error = true;
2130 if( p_owner->video.i_rmask )
2131 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2132 if( p_owner->video.i_gmask )
2133 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2134 if( p_owner->video.i_bmask )
2135 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2138 /* Get a new picture
2142 picture_t *p_picture;
2144 if( p_dec->b_die || p_dec->b_error )
2147 /* The video filter chain required that there is always 1 free buffer
2148 * that it will use as temporary one. It will release the temporary
2149 * buffer once its work is done, so this check is safe even if we don't
2150 * lock around both count() and create().
2152 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2154 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2159 if( DecoderIsFlushing( p_dec ) )
2163 DecoderSignalBuffering( p_dec, true );
2165 /* Check the decoder doesn't leak pictures */
2166 vout_FixLeaks( p_owner->p_vout, false );
2168 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2169 msleep( VOUT_OUTMEM_SLEEP );
2173 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2175 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2178 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2180 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2183 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2185 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2188 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2190 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2191 vout_thread_t *p_vout = NULL;
2192 subpicture_t *p_subpic;
2193 int i_attempts = 30;
2195 while( i_attempts-- )
2197 if( p_dec->b_die || p_dec->b_error )
2200 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2204 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2209 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2213 if( p_owner->p_spu_vout != p_vout )
2215 vlc_mutex_lock( &p_owner->lock );
2217 DecoderFlushBuffering( p_dec );
2219 vlc_mutex_unlock( &p_owner->lock );
2221 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2222 &p_owner->i_spu_channel );
2223 p_owner->i_spu_order = 0;
2224 p_owner->p_spu_vout = p_vout;
2227 p_subpic = subpicture_New();
2230 p_subpic->i_channel = p_owner->i_spu_channel;
2231 p_subpic->i_order = p_owner->i_spu_order++;
2232 p_subpic->b_subtitle = true;
2235 vlc_object_release( p_vout );
2240 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2242 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2243 vout_thread_t *p_vout = NULL;
2245 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2246 if( !p_vout || p_owner->p_spu_vout != p_vout )
2249 vlc_object_release( p_vout );
2250 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2254 subpicture_Delete( p_subpic );
2256 vlc_object_release( p_vout );