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 /*****************************************************************************
163 *****************************************************************************/
165 /* decoder_GetInputAttachments:
167 int decoder_GetInputAttachments( decoder_t *p_dec,
168 input_attachment_t ***ppp_attachment,
171 if( !p_dec->pf_get_attachments )
174 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
176 /* decoder_GetDisplayDate:
178 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
180 if( !p_dec->pf_get_display_date )
183 return p_dec->pf_get_display_date( p_dec, i_ts );
185 /* decoder_GetDisplayRate:
187 int decoder_GetDisplayRate( decoder_t *p_dec )
189 if( !p_dec->pf_get_display_rate )
190 return INPUT_RATE_DEFAULT;
192 return p_dec->pf_get_display_rate( p_dec );
196 * Spawns a new decoder thread
198 * \param p_input the input thread
199 * \param p_es the es descriptor
200 * \return the spawned decoder object
202 decoder_t *input_DecoderNew( input_thread_t *p_input,
203 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
205 decoder_t *p_dec = NULL;
209 /* If we are in sout mode, search for packetizer module */
212 /* Create the decoder configuration structure */
213 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
216 msg_Err( p_input, "could not create packetizer" );
217 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
218 _("VLC could not open the packetizer module.") );
225 /* Create the decoder configuration structure */
226 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
229 msg_Err( p_input, "could not create decoder" );
230 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
231 _("VLC could not open the decoder module.") );
236 if( !p_dec->p_module )
238 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
240 DeleteDecoder( p_dec );
241 vlc_object_release( p_dec );
245 p_dec->p_owner->p_clock = p_clock;
247 if( fmt->i_cat == AUDIO_ES )
248 i_priority = VLC_THREAD_PRIORITY_AUDIO;
250 i_priority = VLC_THREAD_PRIORITY_VIDEO;
252 /* Spawn the decoder thread */
253 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
254 i_priority, false ) )
256 msg_Err( p_dec, "cannot spawn decoder thread" );
257 module_unneed( p_dec, p_dec->p_module );
258 DeleteDecoder( p_dec );
259 vlc_object_release( p_dec );
267 * Kills a decoder thread and waits until it's finished
269 * \param p_input the input thread
270 * \param p_es the es descriptor
273 void input_DecoderDelete( decoder_t *p_dec )
275 decoder_owner_sys_t *p_owner = p_dec->p_owner;
277 vlc_object_kill( p_dec );
279 /* Make sure we aren't paused anymore */
280 vlc_mutex_lock( &p_owner->lock );
281 if( p_owner->b_paused || p_owner->b_buffering )
283 p_owner->b_paused = false;
284 p_owner->b_buffering = false;
285 vlc_cond_signal( &p_owner->wait );
287 vlc_mutex_unlock( &p_owner->lock );
289 /* Make sure the thread leaves the function */
290 block_FifoWake( p_owner->p_fifo );
292 vlc_thread_join( p_dec );
294 /* Don't module_unneed() here because of the dll loader that wants
295 * close() in the same thread than open()/decode() */
298 if( p_dec->p_owner->cc.b_supported )
301 for( i = 0; i < 4; i++ )
302 input_DecoderSetCcState( p_dec, false, i );
305 /* Delete decoder configuration */
306 DeleteDecoder( p_dec );
308 /* Delete the decoder */
309 vlc_object_release( p_dec );
313 * Put a block_t in the decoder's fifo.
315 * \param p_dec the decoder object
316 * \param p_block the data block
318 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
320 decoder_owner_sys_t *p_owner = p_dec->p_owner;
322 if( p_owner->p_input->p->b_out_pace_control )
325 while( vlc_object_alive( p_dec ) &&
326 block_FifoCount( p_owner->p_fifo ) > 10 )
331 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
333 /* FIXME: ideally we would check the time amount of data
334 * in the fifo instead of its size. */
335 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
336 "consumed quickly enough), resetting fifo!" );
337 block_FifoEmpty( p_owner->p_fifo );
340 block_FifoPut( p_owner->p_fifo, p_block );
343 bool input_DecoderIsEmpty( decoder_t * p_dec )
345 assert( !p_dec->p_owner->b_buffering );
347 /* FIXME that's not really true */
348 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
351 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
353 decoder_owner_sys_t *p_owner = p_dec->p_owner;
356 vlc_mutex_lock( &p_owner->lock );
357 for( i = 0; i < 4; i++ )
358 pb_present[i] = p_owner->cc.pb_present[i];
359 vlc_mutex_unlock( &p_owner->lock );
361 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
363 decoder_owner_sys_t *p_owner = p_dec->p_owner;
365 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
367 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
372 static const vlc_fourcc_t fcc[4] = {
373 VLC_FOURCC('c', 'c', '1', ' '),
374 VLC_FOURCC('c', 'c', '2', ' '),
375 VLC_FOURCC('c', 'c', '3', ' '),
376 VLC_FOURCC('c', 'c', '4', ' '),
381 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
382 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
385 msg_Err( p_dec, "could not create decoder" );
386 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
387 _("VLC could not open the decoder module.") );
390 else if( !p_cc->p_module )
392 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
393 DeleteDecoder( p_cc );
394 vlc_object_release( p_cc );
397 p_cc->p_owner->p_clock = p_owner->p_clock;
399 vlc_mutex_lock( &p_owner->lock );
400 p_owner->cc.pp_decoder[i_channel] = p_cc;
401 vlc_mutex_unlock( &p_owner->lock );
407 vlc_mutex_lock( &p_owner->lock );
408 p_cc = p_owner->cc.pp_decoder[i_channel];
409 p_owner->cc.pp_decoder[i_channel] = NULL;
410 vlc_mutex_unlock( &p_owner->lock );
414 vlc_object_kill( p_cc );
415 module_unneed( p_cc, p_cc->p_module );
416 DeleteDecoder( p_cc );
417 vlc_object_release( p_cc );
422 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
424 decoder_owner_sys_t *p_owner = p_dec->p_owner;
427 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
430 vlc_mutex_lock( &p_owner->lock );
431 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
432 vlc_mutex_unlock( &p_owner->lock );
436 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
438 decoder_owner_sys_t *p_owner = p_dec->p_owner;
440 vlc_mutex_lock( &p_owner->lock );
442 assert( !p_owner->b_paused || !b_paused );
444 p_owner->b_paused = b_paused;
445 p_owner->pause.i_date = i_date;
446 p_owner->pause.i_ignore = 0;
447 vlc_cond_signal( &p_owner->wait );
449 DecoderOutputChangePause( p_dec, b_paused, i_date );
451 vlc_mutex_unlock( &p_owner->lock );
454 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
456 decoder_owner_sys_t *p_owner = p_dec->p_owner;
458 vlc_mutex_lock( &p_owner->lock );
459 p_owner->i_ts_delay = i_delay;
460 vlc_mutex_unlock( &p_owner->lock );
463 void input_DecoderStartBuffering( decoder_t *p_dec )
465 decoder_owner_sys_t *p_owner = p_dec->p_owner;
467 vlc_mutex_lock( &p_owner->lock );
469 DecoderFlush( p_dec );
471 p_owner->buffer.b_first = true;
472 p_owner->buffer.b_full = false;
473 p_owner->buffer.i_count = 0;
475 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
477 p_owner->buffer.p_picture = NULL;
478 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
480 p_owner->buffer.p_subpic = NULL;
481 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
483 p_owner->buffer.p_audio = NULL;
484 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
486 p_owner->b_buffering = true;
488 vlc_cond_signal( &p_owner->wait );
490 vlc_mutex_unlock( &p_owner->lock );
493 void input_DecoderStopBuffering( decoder_t *p_dec )
495 decoder_owner_sys_t *p_owner = p_dec->p_owner;
497 vlc_mutex_lock( &p_owner->lock );
499 p_owner->b_buffering = false;
501 vlc_cond_signal( &p_owner->wait );
503 vlc_mutex_unlock( &p_owner->lock );
506 void input_DecoderWaitBuffering( decoder_t *p_dec )
508 decoder_owner_sys_t *p_owner = p_dec->p_owner;
510 vlc_mutex_lock( &p_owner->lock );
512 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
514 block_FifoWake( p_owner->p_fifo );
515 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
518 vlc_mutex_unlock( &p_owner->lock );
520 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
522 decoder_owner_sys_t *p_owner = p_dec->p_owner;
526 vlc_mutex_lock( &p_owner->lock );
527 if( p_dec->fmt_in.i_cat == VIDEO_ES )
529 if( p_owner->b_paused && p_owner->p_vout )
531 vout_NextPicture( p_owner->p_vout, pi_duration );
532 p_owner->pause.i_ignore++;
533 vlc_cond_signal( &p_owner->wait );
538 /* TODO subtitle should not be flushed */
539 DecoderFlush( p_dec );
541 vlc_mutex_unlock( &p_owner->lock );
544 /*****************************************************************************
546 *****************************************************************************/
547 static int DecoderGetInputAttachments( decoder_t *p_dec,
548 input_attachment_t ***ppp_attachment,
551 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
552 ppp_attachment, pi_attachment );
554 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
556 decoder_owner_sys_t *p_owner = p_dec->p_owner;
558 vlc_mutex_lock( &p_owner->lock );
559 if( p_owner->b_buffering || p_owner->b_paused )
561 vlc_mutex_unlock( &p_owner->lock );
563 if( !p_owner->p_clock || !i_ts )
566 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
568 static int DecoderGetDisplayRate( decoder_t *p_dec )
570 decoder_owner_sys_t *p_owner = p_dec->p_owner;
572 if( !p_owner->p_clock )
573 return INPUT_RATE_DEFAULT;
574 return input_clock_GetRate( p_owner->p_clock );
578 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
580 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
581 "VLC probably does not support this sound or video format.",
583 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
584 _("VLC does not support the audio or video format \"%4.4s\". "
585 "Unfortunately there is no way for you to fix this."), (char*)&codec );
590 * Create a decoder object
592 * \param p_input the input thread
593 * \param p_es the es descriptor
594 * \param i_object_type Object type as define in include/vlc_objects.h
595 * \return the decoder object
597 static decoder_t * CreateDecoder( input_thread_t *p_input,
598 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
601 decoder_owner_sys_t *p_owner;
604 p_dec = vlc_object_create( p_input, i_object_type );
608 p_dec->pf_decode_audio = NULL;
609 p_dec->pf_decode_video = NULL;
610 p_dec->pf_decode_sub = NULL;
611 p_dec->pf_get_cc = NULL;
612 p_dec->pf_packetize = NULL;
614 /* Initialize the decoder fifo */
615 p_dec->p_module = NULL;
617 memset( &null_es_format, 0, sizeof(es_format_t) );
618 es_format_Copy( &p_dec->fmt_in, fmt );
619 es_format_Copy( &p_dec->fmt_out, &null_es_format );
621 /* Allocate our private structure for the decoder */
622 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
623 if( p_dec->p_owner == NULL )
625 vlc_object_release( p_dec );
628 p_dec->p_owner->i_preroll_end = -1;
629 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
630 p_dec->p_owner->p_input = p_input;
631 p_dec->p_owner->p_aout = NULL;
632 p_dec->p_owner->p_aout_input = NULL;
633 p_dec->p_owner->p_vout = NULL;
634 p_dec->p_owner->p_spu_vout = NULL;
635 p_dec->p_owner->i_spu_channel = 0;
636 p_dec->p_owner->i_spu_order = 0;
637 p_dec->p_owner->p_sout = p_sout;
638 p_dec->p_owner->p_sout_input = NULL;
639 p_dec->p_owner->p_packetizer = NULL;
642 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
644 free( p_dec->p_owner );
645 vlc_object_release( p_dec );
649 /* Set buffers allocation callbacks for the decoders */
650 p_dec->pf_aout_buffer_new = aout_new_buffer;
651 p_dec->pf_aout_buffer_del = aout_del_buffer;
652 p_dec->pf_vout_buffer_new = vout_new_buffer;
653 p_dec->pf_vout_buffer_del = vout_del_buffer;
654 p_dec->pf_picture_link = vout_link_picture;
655 p_dec->pf_picture_unlink = vout_unlink_picture;
656 p_dec->pf_spu_buffer_new = spu_new_buffer;
657 p_dec->pf_spu_buffer_del = spu_del_buffer;
659 p_dec->pf_get_attachments = DecoderGetInputAttachments;
660 p_dec->pf_get_display_date = DecoderGetDisplayDate;
661 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
663 vlc_object_attach( p_dec, p_input );
665 /* Find a suitable decoder/packetizer module */
666 if( i_object_type == VLC_OBJECT_DECODER )
667 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
669 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
671 /* Check if decoder requires already packetized data */
672 if( i_object_type == VLC_OBJECT_DECODER &&
673 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
675 p_dec->p_owner->p_packetizer =
676 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
677 if( p_dec->p_owner->p_packetizer )
679 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
682 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
685 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
687 p_dec->p_owner->p_packetizer->p_module =
688 module_need( p_dec->p_owner->p_packetizer,
689 "packetizer", "$packetizer", 0 );
691 if( !p_dec->p_owner->p_packetizer->p_module )
693 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
694 vlc_object_detach( p_dec->p_owner->p_packetizer );
695 vlc_object_release( p_dec->p_owner->p_packetizer );
700 /* Copy ourself the input replay gain */
701 if( fmt->i_cat == AUDIO_ES )
703 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
705 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
707 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
708 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
710 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
712 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
713 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
719 vlc_mutex_init( &p_owner->lock );
720 vlc_cond_init( &p_owner->wait );
722 p_owner->b_paused = false;
723 p_owner->pause.i_date = 0;
724 p_owner->pause.i_ignore = 0;
726 p_owner->b_buffering = false;
727 p_owner->buffer.b_first = true;
728 p_owner->buffer.b_full = false;
729 p_owner->buffer.i_count = 0;
730 p_owner->buffer.p_picture = NULL;
731 p_owner->buffer.p_subpic = NULL;
732 p_owner->buffer.p_audio = NULL;
734 p_owner->b_flushing = false;
737 p_owner->cc.b_supported = false;
738 if( i_object_type == VLC_OBJECT_DECODER )
740 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
741 p_owner->cc.b_supported = true;
742 if( p_dec->pf_get_cc )
743 p_owner->cc.b_supported = true;
746 for( i = 0; i < 4; i++ )
748 p_owner->cc.pb_present[i] = false;
749 p_owner->cc.pp_decoder[i] = NULL;
751 p_owner->i_ts_delay = 0;
756 * The decoding main loop
758 * \param p_dec the decoder
760 static void *DecoderThread( vlc_object_t *p_this )
762 decoder_t *p_dec = (decoder_t *)p_this;
763 decoder_owner_sys_t *p_owner = p_dec->p_owner;
765 int canc = vlc_savecancel();
767 /* The decoder's main loop */
768 while( vlc_object_alive( p_dec ) )
770 block_t *p_block = block_FifoGet( p_owner->p_fifo );
772 DecoderSignalBuffering( p_dec, p_block == NULL );
777 { /* Trash all received PES packets */
778 block_Release( p_block );
780 else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
787 DecoderSignalBuffering( p_dec, true );
789 /* We do it here because of the dll loader that wants close() in the
790 * same thread than open()/decode() */
791 module_unneed( p_dec, p_dec->p_module );
792 vlc_restorecancel( canc );
796 static void DecoderFlush( decoder_t *p_dec )
798 decoder_owner_sys_t *p_owner = p_dec->p_owner;
801 vlc_assert_locked( &p_owner->lock );
804 block_FifoEmpty( p_owner->p_fifo );
806 /* Monitor for flush end */
807 p_owner->b_flushing = true;
808 vlc_cond_signal( &p_owner->wait );
810 /* Send a special block */
811 p_null = block_New( p_dec, 128 );
814 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
815 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
816 if( !p_dec->fmt_in.b_packetized )
817 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
818 memset( p_null->p_buffer, 0, p_null->i_buffer );
820 input_DecoderDecode( p_dec, p_null );
823 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
824 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
827 static void DecoderSignalFlushed( decoder_t *p_dec )
829 decoder_owner_sys_t *p_owner = p_dec->p_owner;
831 vlc_mutex_lock( &p_owner->lock );
833 if( p_owner->b_flushing )
835 p_owner->b_flushing = false;
836 vlc_cond_signal( &p_owner->wait );
839 vlc_mutex_unlock( &p_owner->lock );
842 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
844 decoder_owner_sys_t *p_owner = p_dec->p_owner;
846 vlc_mutex_lock( &p_owner->lock );
848 if( p_owner->b_buffering )
851 p_owner->buffer.b_full = true;
852 vlc_cond_signal( &p_owner->wait );
855 vlc_mutex_unlock( &p_owner->lock );
858 static bool DecoderIsFlushing( decoder_t *p_dec )
860 decoder_owner_sys_t *p_owner = p_dec->p_owner;
863 vlc_mutex_lock( &p_owner->lock );
865 b_flushing = p_owner->b_flushing;
867 vlc_mutex_unlock( &p_owner->lock );
872 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
874 decoder_owner_sys_t *p_owner = p_dec->p_owner;
876 vlc_assert_locked( &p_owner->lock );
878 while( !p_owner->b_flushing )
880 if( p_owner->b_paused )
882 if( p_owner->b_buffering && !p_owner->buffer.b_full )
884 if( p_owner->pause.i_ignore > 0 )
886 p_owner->pause.i_ignore--;
892 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
895 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
899 *pb_reject = p_owner->b_flushing;
902 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
904 decoder_owner_sys_t *p_owner = p_dec->p_owner;
906 vlc_assert_locked( &p_owner->lock );
908 /* XXX only audio and video output have to be paused.
909 * - for sout it is useless
910 * - for subs, it is done by the vout
912 if( p_dec->fmt_in.i_cat == AUDIO_ES )
914 if( p_owner->p_aout && p_owner->p_aout_input )
915 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
918 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
920 if( p_owner->p_vout )
921 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
924 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
926 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
927 *pi_preroll = INT64_MAX;
928 else if( p->i_pts > 0 )
929 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
930 else if( p->i_dts > 0 )
931 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
934 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
936 mtime_t current_date = mdate();
938 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
939 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
941 /* ETSI EN 300 472 Annex A : do not take into account the PTS
942 * for teletext streams. */
943 return current_date + 400000 + i_ts_delay;
948 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
949 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
951 decoder_owner_sys_t *p_owner = p_dec->p_owner;
952 input_clock_t *p_clock = p_owner->p_clock;
955 vlc_assert_locked( &p_owner->lock );
957 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
958 const mtime_t i_es_delay = p_owner->i_ts_delay;
962 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
965 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
966 *pi_ts0 + i_es_delay );
967 if( pi_ts1 && *pi_ts1 > 0 )
968 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
969 *pi_ts1 + i_es_delay );
971 /* Do not create ephemere data because of rounding errors */
972 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
976 i_rate = input_clock_GetRate( p_clock );
979 *pi_duration = ( *pi_duration * i_rate +
980 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
987 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
988 if( pi_ts1 && *pi_ts1 <= 0 )
994 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
995 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
999 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1000 int *pi_played_sum, int *pi_lost_sum )
1002 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1003 aout_instance_t *p_aout = p_owner->p_aout;
1004 aout_input_t *p_aout_input = p_owner->p_aout_input;
1007 if( p_audio->start_date <= 0 )
1009 msg_Warn( p_dec, "non-dated audio buffer received" );
1011 aout_BufferFree( p_audio );
1016 vlc_mutex_lock( &p_owner->lock );
1018 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1020 p_audio->p_next = NULL;
1022 *p_owner->buffer.pp_audio_next = p_audio;
1023 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1025 p_owner->buffer.i_count++;
1026 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1027 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1029 p_owner->buffer.b_full = true;
1030 vlc_cond_signal( &p_owner->wait );
1036 bool b_has_more = false;
1038 DecoderWaitUnblock( p_dec, &b_reject );
1040 if( p_owner->b_buffering )
1042 vlc_mutex_unlock( &p_owner->lock );
1047 if( p_owner->buffer.p_audio )
1049 p_audio = p_owner->buffer.p_audio;
1051 p_owner->buffer.p_audio = p_audio->p_next;
1052 p_owner->buffer.i_count--;
1054 b_has_more = p_owner->buffer.p_audio != NULL;
1056 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1060 int i_rate = INPUT_RATE_DEFAULT;
1063 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1064 &i_rate, &i_delay, false );
1066 vlc_mutex_unlock( &p_owner->lock );
1069 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1071 if( !p_aout || !p_aout_input ||
1072 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1073 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1074 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1079 /* Wait if we are too early
1080 * FIXME that's plain ugly to do it here */
1081 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1083 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1084 *pi_played_sum += 1;
1085 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1089 if( p_audio->start_date <= 0 )
1091 msg_Warn( p_dec, "non-dated audio buffer received" );
1093 else if( p_audio->start_date > i_max_date )
1095 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1096 p_audio->start_date - mdate() );
1099 aout_BufferFree( p_audio );
1105 vlc_mutex_lock( &p_owner->lock );
1106 if( !p_owner->buffer.p_audio )
1108 vlc_mutex_unlock( &p_owner->lock );
1114 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1116 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1117 input_thread_t *p_input = p_owner->p_input;
1118 aout_buffer_t *p_aout_buf;
1123 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1125 aout_instance_t *p_aout = p_owner->p_aout;
1126 aout_input_t *p_aout_input = p_owner->p_aout_input;
1132 /* It prevent freezing VLC in case of broken decoder */
1133 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1135 block_Release( p_block );
1140 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1142 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1146 if( p_owner->i_preroll_end > 0 )
1148 msg_Dbg( p_dec, "End of audio preroll" );
1149 if( p_owner->p_aout && p_owner->p_aout_input )
1150 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1152 p_owner->i_preroll_end = -1;
1155 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1158 /* Update ugly stat */
1159 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1161 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1163 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1165 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1167 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1170 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1173 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1175 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1181 assert( p_dec_cc->pf_get_cc != NULL );
1183 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1184 if( !p_owner->cc.b_supported )
1187 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1191 vlc_mutex_lock( &p_owner->lock );
1192 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1194 p_owner->cc.pb_present[i] |= pb_present[i];
1195 if( p_owner->cc.pp_decoder[i] )
1199 for( i = 0; i < 4; i++ )
1201 if( !p_owner->cc.pp_decoder[i] )
1204 if( i_cc_decoder > 1 )
1205 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1207 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1210 vlc_mutex_unlock( &p_owner->lock );
1213 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1214 int *pi_played_sum, int *pi_lost_sum )
1216 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1217 vout_thread_t *p_vout = p_owner->p_vout;
1218 bool b_first_buffered;
1220 if( p_picture->date <= 0 )
1222 msg_Warn( p_vout, "non-dated video buffer received" );
1224 vout_DropPicture( p_vout, p_picture );
1229 vlc_mutex_lock( &p_owner->lock );
1231 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1233 p_picture->p_next = NULL;
1235 *p_owner->buffer.pp_picture_next = p_picture;
1236 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1238 p_owner->buffer.i_count++;
1239 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1240 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1242 p_owner->buffer.b_full = true;
1243 vlc_cond_signal( &p_owner->wait );
1246 b_first_buffered = p_owner->buffer.p_picture != NULL;
1248 for( ;; b_first_buffered = false )
1250 bool b_has_more = false;
1254 DecoderWaitUnblock( p_dec, &b_reject );
1256 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1258 vlc_mutex_unlock( &p_owner->lock );
1261 bool b_buffering_first = p_owner->b_buffering;
1264 if( p_owner->buffer.p_picture )
1266 p_picture = p_owner->buffer.p_picture;
1268 p_owner->buffer.p_picture = p_picture->p_next;
1269 p_owner->buffer.i_count--;
1271 b_has_more = p_owner->buffer.p_picture != NULL;
1273 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1277 int i_rate = INPUT_RATE_DEFAULT;
1280 if( b_buffering_first )
1282 assert( p_owner->buffer.b_first );
1283 assert( !p_owner->buffer.i_count );
1284 msg_Dbg( p_dec, "Received first picture" );
1285 p_owner->buffer.b_first = false;
1286 p_picture->b_force = true;
1288 if( p_owner->p_clock )
1289 i_rate = input_clock_GetRate( p_owner->p_clock );
1291 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1292 &i_rate, &i_delay, false );
1294 vlc_mutex_unlock( &p_owner->lock );
1297 const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1299 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1304 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1306 /* Be sure to not display old picture after our own */
1307 vout_Flush( p_vout, p_picture->date );
1308 p_owner->i_last_rate = i_rate;
1310 vout_DisplayPicture( p_vout, p_picture );
1314 if( p_picture->date <= 0 )
1316 msg_Warn( p_vout, "non-dated video buffer received" );
1320 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1321 p_picture->date - mdate() );
1324 vout_DropPicture( p_vout, p_picture );
1328 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1330 *pi_played_sum += i_tmp_display;
1331 *pi_lost_sum += i_tmp_lost;
1333 if( !b_has_more || b_buffering_first )
1336 vlc_mutex_lock( &p_owner->lock );
1337 if( !p_owner->buffer.p_picture )
1339 vlc_mutex_unlock( &p_owner->lock );
1345 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1347 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1348 input_thread_t *p_input = p_owner->p_input;
1352 int i_displayed = 0;
1354 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1356 vout_thread_t *p_vout = p_owner->p_vout;
1359 /* It prevent freezing VLC in case of broken decoder */
1360 vout_DropPicture( p_vout, p_pic );
1362 block_Release( p_block );
1368 if( p_pic->date < p_owner->i_preroll_end )
1370 vout_DropPicture( p_vout, p_pic );
1374 if( p_owner->i_preroll_end > 0 )
1376 msg_Dbg( p_dec, "End of video preroll" );
1378 vout_Flush( p_vout, 1 );
1380 p_owner->i_preroll_end = -1;
1383 if( p_dec->pf_get_cc &&
1384 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1385 DecoderGetCc( p_dec, p_dec );
1387 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1389 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1391 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1393 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1395 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1398 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1401 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1405 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1408 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1409 vout_thread_t *p_vout = p_owner->p_spu_vout;
1412 if( p_subpic->i_start <= 0 )
1414 msg_Warn( p_dec, "non-dated spu buffer received" );
1415 subpicture_Delete( p_subpic );
1420 vlc_mutex_lock( &p_owner->lock );
1422 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1424 p_subpic->p_next = NULL;
1426 *p_owner->buffer.pp_subpic_next = p_subpic;
1427 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1429 p_owner->buffer.i_count++;
1430 /* XXX it is important to be full after the first one */
1431 if( p_owner->buffer.i_count > 0 )
1433 p_owner->buffer.b_full = true;
1434 vlc_cond_signal( &p_owner->wait );
1440 bool b_has_more = false;
1442 DecoderWaitUnblock( p_dec, &b_reject );
1444 if( p_owner->b_buffering )
1446 vlc_mutex_unlock( &p_owner->lock );
1451 if( p_owner->buffer.p_subpic )
1453 p_subpic = p_owner->buffer.p_subpic;
1455 p_owner->buffer.p_subpic = p_subpic->p_next;
1456 p_owner->buffer.i_count--;
1458 b_has_more = p_owner->buffer.p_subpic != NULL;
1460 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1464 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1465 NULL, NULL, b_telx );
1467 vlc_mutex_unlock( &p_owner->lock );
1470 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1472 subpicture_Delete( p_subpic );
1476 vlc_mutex_lock( &p_owner->lock );
1477 if( !p_owner->buffer.p_subpic )
1479 vlc_mutex_unlock( &p_owner->lock );
1485 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1488 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1490 assert( p_owner->p_clock );
1492 vlc_mutex_lock( &p_owner->lock );
1495 DecoderWaitUnblock( p_dec, &b_reject );
1497 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1498 &p_sout_block->i_rate, NULL, b_telx );
1500 vlc_mutex_unlock( &p_owner->lock );
1502 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1506 static void DecoderFlushBuffering( decoder_t *p_dec )
1508 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1510 vlc_assert_locked( &p_owner->lock );
1512 while( p_owner->buffer.p_picture )
1514 picture_t *p_picture = p_owner->buffer.p_picture;
1516 p_owner->buffer.p_picture = p_picture->p_next;
1517 p_owner->buffer.i_count--;
1519 if( p_owner->p_vout )
1520 vout_DropPicture( p_owner->p_vout, p_picture );
1522 if( !p_owner->buffer.p_picture )
1523 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1525 while( p_owner->buffer.p_audio )
1527 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1529 p_owner->buffer.p_audio = p_audio->p_next;
1530 p_owner->buffer.i_count--;
1532 aout_BufferFree( p_audio );
1534 if( !p_owner->buffer.p_audio )
1535 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1537 while( p_owner->buffer.p_subpic )
1539 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1541 p_owner->buffer.p_subpic = p_subpic->p_next;
1542 p_owner->buffer.i_count--;
1544 subpicture_Delete( p_subpic );
1546 if( !p_owner->buffer.p_subpic )
1547 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1551 /* This function process a block for sout
1553 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1555 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1556 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1557 block_t *p_sout_block;
1559 while( ( p_sout_block =
1560 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1562 if( !p_owner->p_sout_input )
1564 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1566 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1567 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1568 if( p_dec->fmt_in.psz_language )
1570 if( p_owner->sout.psz_language )
1571 free( p_owner->sout.psz_language );
1572 p_owner->sout.psz_language =
1573 strdup( p_dec->fmt_in.psz_language );
1576 p_owner->p_sout_input =
1577 sout_InputNew( p_owner->p_sout,
1580 if( p_owner->p_sout_input == NULL )
1582 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1583 (char *)&p_owner->sout.i_codec );
1584 p_dec->b_error = true;
1586 while( p_sout_block )
1588 block_t *p_next = p_sout_block->p_next;
1589 block_Release( p_sout_block );
1590 p_sout_block = p_next;
1596 while( p_sout_block )
1598 block_t *p_next = p_sout_block->p_next;
1600 p_sout_block->p_next = NULL;
1602 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1604 p_sout_block = p_next;
1607 /* For now it's enough, as only sout impact on this flag */
1608 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1609 p_owner->p_input->p->b_out_pace_control )
1611 msg_Dbg( p_dec, "switching to sync mode" );
1612 p_owner->p_input->p->b_out_pace_control = false;
1614 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1615 !p_owner->p_input->p->b_out_pace_control )
1617 msg_Dbg( p_dec, "switching to async mode" );
1618 p_owner->p_input->p->b_out_pace_control = true;
1623 /* This function process a video block
1625 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1627 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1629 if( p_owner->p_packetizer )
1631 block_t *p_packetized_block;
1632 decoder_t *p_packetizer = p_owner->p_packetizer;
1634 while( (p_packetized_block =
1635 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1637 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1639 es_format_Clean( &p_dec->fmt_in );
1640 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1642 if( p_packetizer->pf_get_cc )
1643 DecoderGetCc( p_dec, p_packetizer );
1645 while( p_packetized_block )
1647 block_t *p_next = p_packetized_block->p_next;
1648 p_packetized_block->p_next = NULL;
1650 DecoderDecodeVideo( p_dec, p_packetized_block );
1652 p_packetized_block = p_next;
1658 DecoderDecodeVideo( p_dec, p_block );
1661 if( b_flush && p_owner->p_vout )
1662 vout_Flush( p_owner->p_vout, 1 );
1665 /* This function process a audio block
1667 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1669 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1671 if( p_owner->p_packetizer )
1673 block_t *p_packetized_block;
1674 decoder_t *p_packetizer = p_owner->p_packetizer;
1676 while( (p_packetized_block =
1677 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1679 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1681 es_format_Clean( &p_dec->fmt_in );
1682 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1685 while( p_packetized_block )
1687 block_t *p_next = p_packetized_block->p_next;
1688 p_packetized_block->p_next = NULL;
1690 DecoderDecodeAudio( p_dec, p_packetized_block );
1692 p_packetized_block = p_next;
1698 DecoderDecodeAudio( p_dec, p_block );
1701 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1702 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1705 /* This function process a subtitle block
1707 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1709 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1710 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1712 input_thread_t *p_input = p_owner->p_input;
1713 vout_thread_t *p_vout;
1714 subpicture_t *p_spu;
1716 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1718 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1719 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1720 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1722 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1723 if( p_vout && p_owner->p_spu_vout == p_vout )
1725 /* Preroll does not work very well with subtitle */
1726 if( p_spu->i_start > 0 &&
1727 p_spu->i_start < p_owner->i_preroll_end &&
1728 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1730 subpicture_Delete( p_spu );
1734 DecoderPlaySpu( p_dec, p_spu, b_telx );
1739 subpicture_Delete( p_spu );
1742 vlc_object_release( p_vout );
1745 if( b_flush && p_owner->p_spu_vout )
1747 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1749 if( p_vout && p_owner->p_spu_vout == p_vout )
1750 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1751 p_owner->i_spu_channel );
1754 vlc_object_release( p_vout );
1761 * \param p_dec the decoder object
1762 * \param p_block the block to decode
1763 * \return VLC_SUCCESS or an error code
1765 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1767 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1768 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1770 if( p_block && p_block->i_buffer <= 0 )
1772 assert( !b_flush_request );
1773 block_Release( p_block );
1778 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1781 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1783 DecoderProcessSout( p_dec, p_block );
1788 bool b_flush = false;
1792 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1793 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1795 b_flush = !b_flushing && b_flush_request;
1797 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1800 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1802 DecoderProcessAudio( p_dec, p_block, b_flush );
1804 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1806 DecoderProcessVideo( p_dec, p_block, b_flush );
1808 else if( p_dec->fmt_in.i_cat == SPU_ES )
1810 DecoderProcessSpu( p_dec, p_block, b_flush );
1814 msg_Err( p_dec, "unknown ES format" );
1815 p_dec->b_error = true;
1820 if( b_flush_request )
1822 vlc_mutex_lock( &p_owner->lock );
1823 DecoderFlushBuffering( p_dec );
1824 vlc_mutex_unlock( &p_owner->lock );
1826 DecoderSignalFlushed( p_dec );
1829 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1833 * Destroys a decoder object
1835 * \param p_dec the decoder object
1838 static void DeleteDecoder( decoder_t * p_dec )
1840 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1842 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1843 (char*)&p_dec->fmt_in.i_codec,
1844 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1846 /* Free all packets still in the decoder fifo. */
1847 block_FifoEmpty( p_owner->p_fifo );
1848 block_FifoRelease( p_owner->p_fifo );
1851 vlc_mutex_lock( &p_owner->lock );
1852 DecoderFlushBuffering( p_dec );
1853 vlc_mutex_unlock( &p_owner->lock );
1856 if( p_owner->p_aout_input )
1857 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1858 if( p_owner->p_aout )
1860 vlc_object_release( p_owner->p_aout );
1861 p_owner->p_aout = NULL;
1863 if( p_owner->p_vout )
1865 /* Hack to make sure all the the pictures are freed by the decoder */
1866 vout_FixLeaks( p_owner->p_vout, true );
1868 /* We are about to die. Reattach video output to p_vlc. */
1869 vout_Request( p_dec, p_owner->p_vout, NULL );
1870 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1874 if( p_owner->p_sout_input )
1876 sout_InputDelete( p_owner->p_sout_input );
1877 es_format_Clean( &p_owner->sout );
1881 if( p_dec->fmt_in.i_cat == SPU_ES )
1883 vout_thread_t *p_vout;
1885 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1886 if( p_vout && p_owner->p_spu_vout == p_vout )
1888 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1889 p_owner->i_spu_channel );
1890 vlc_object_release( p_vout );
1894 es_format_Clean( &p_dec->fmt_in );
1895 es_format_Clean( &p_dec->fmt_out );
1897 if( p_owner->p_packetizer )
1899 module_unneed( p_owner->p_packetizer,
1900 p_owner->p_packetizer->p_module );
1901 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1902 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1903 vlc_object_detach( p_owner->p_packetizer );
1904 vlc_object_release( p_owner->p_packetizer );
1907 vlc_cond_destroy( &p_owner->wait );
1908 vlc_mutex_destroy( &p_owner->lock );
1910 vlc_object_detach( p_dec );
1915 /*****************************************************************************
1916 * Buffers allocation callbacks for the decoders
1917 *****************************************************************************/
1918 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1920 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1921 aout_buffer_t *p_buffer;
1923 if( p_owner->p_aout_input != NULL &&
1924 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1925 p_dec->fmt_out.audio.i_original_channels !=
1926 p_owner->audio.i_original_channels ||
1927 p_dec->fmt_out.audio.i_bytes_per_frame !=
1928 p_owner->audio.i_bytes_per_frame ) )
1930 aout_input_t *p_aout_input = p_owner->p_aout_input;
1932 /* Parameters changed, restart the aout */
1933 vlc_mutex_lock( &p_owner->lock );
1935 DecoderFlushBuffering( p_dec );
1937 p_owner->p_aout_input = NULL;
1938 aout_DecDelete( p_owner->p_aout, p_aout_input );
1940 vlc_mutex_unlock( &p_owner->lock );
1943 if( p_owner->p_aout_input == NULL )
1945 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1946 audio_sample_format_t format;
1947 aout_input_t *p_aout_input;
1948 aout_instance_t *p_aout;
1950 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1951 p_owner->audio = p_dec->fmt_out.audio;
1953 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1954 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1955 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1957 if ( i_force_dolby == 1 )
1959 format.i_original_channels = format.i_original_channels |
1960 AOUT_CHAN_DOLBYSTEREO;
1962 else /* i_force_dolby == 2 */
1964 format.i_original_channels = format.i_original_channels &
1965 ~AOUT_CHAN_DOLBYSTEREO;
1969 p_aout = p_owner->p_aout;
1970 p_aout_input = aout_DecNew( p_dec, &p_aout,
1971 &format, &p_dec->fmt_out.audio_replay_gain );
1973 vlc_mutex_lock( &p_owner->lock );
1974 p_owner->p_aout = p_aout;
1975 p_owner->p_aout_input = p_aout_input;
1976 vlc_mutex_unlock( &p_owner->lock );
1978 if( p_owner->p_aout_input == NULL )
1980 msg_Err( p_dec, "failed to create audio output" );
1981 p_dec->b_error = true;
1984 p_dec->fmt_out.audio.i_bytes_per_frame =
1985 p_owner->audio.i_bytes_per_frame;
1988 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1993 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1995 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1997 aout_DecDeleteBuffer( p_owner->p_aout,
1998 p_owner->p_aout_input, p_buffer );
2002 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2004 static picture_t *vout_new_buffer( decoder_t *p_dec )
2006 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2008 if( p_owner->p_vout == NULL ||
2009 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2010 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2011 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2012 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2014 vout_thread_t *p_vout;
2016 if( !p_dec->fmt_out.video.i_width ||
2017 !p_dec->fmt_out.video.i_height )
2019 /* Can't create a new vout without display size */
2023 if( !p_dec->fmt_out.video.i_visible_width ||
2024 !p_dec->fmt_out.video.i_visible_height )
2026 if( p_dec->fmt_in.video.i_visible_width &&
2027 p_dec->fmt_in.video.i_visible_height )
2029 p_dec->fmt_out.video.i_visible_width =
2030 p_dec->fmt_in.video.i_visible_width;
2031 p_dec->fmt_out.video.i_visible_height =
2032 p_dec->fmt_in.video.i_visible_height;
2036 p_dec->fmt_out.video.i_visible_width =
2037 p_dec->fmt_out.video.i_width;
2038 p_dec->fmt_out.video.i_visible_height =
2039 p_dec->fmt_out.video.i_height;
2043 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2044 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2046 p_dec->fmt_out.video.i_visible_height = 1080;
2047 p_dec->fmt_out.video.i_sar_num *= 135;
2048 p_dec->fmt_out.video.i_sar_den *= 136;
2049 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2052 if( !p_dec->fmt_out.video.i_sar_num ||
2053 !p_dec->fmt_out.video.i_sar_den )
2055 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2056 p_dec->fmt_out.video.i_visible_height;
2058 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2059 p_dec->fmt_out.video.i_visible_width;
2062 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2063 &p_dec->fmt_out.video.i_sar_den,
2064 p_dec->fmt_out.video.i_sar_num,
2065 p_dec->fmt_out.video.i_sar_den, 50000 );
2067 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2068 p_owner->video = p_dec->fmt_out.video;
2070 vlc_mutex_lock( &p_owner->lock );
2072 DecoderFlushBuffering( p_dec );
2074 p_vout = p_owner->p_vout;
2075 p_owner->p_vout = NULL;
2076 vlc_mutex_unlock( &p_owner->lock );
2078 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2080 vlc_mutex_lock( &p_owner->lock );
2081 p_owner->p_vout = p_vout;
2082 vlc_mutex_unlock( &p_owner->lock );
2084 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2085 if( p_vout == NULL )
2087 msg_Err( p_dec, "failed to create video output" );
2088 p_dec->b_error = true;
2092 if( p_owner->video.i_rmask )
2093 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2094 if( p_owner->video.i_gmask )
2095 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2096 if( p_owner->video.i_bmask )
2097 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2100 /* Get a new picture
2104 picture_t *p_picture;
2106 if( p_dec->b_die || p_dec->b_error )
2109 /* The video filter chain required that there is always 1 free buffer
2110 * that it will use as temporary one. It will release the temporary
2111 * buffer once its work is done, so this check is safe even if we don't
2112 * lock around both count() and create().
2114 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2116 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2121 if( DecoderIsFlushing( p_dec ) )
2125 DecoderSignalBuffering( p_dec, true );
2127 /* Check the decoder doesn't leak pictures */
2128 vout_FixLeaks( p_owner->p_vout, false );
2130 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2131 msleep( VOUT_OUTMEM_SLEEP );
2135 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2137 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2140 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2142 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2145 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2147 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2150 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2152 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2153 vout_thread_t *p_vout = NULL;
2154 subpicture_t *p_subpic;
2155 int i_attempts = 30;
2157 while( i_attempts-- )
2159 if( p_dec->b_die || p_dec->b_error )
2162 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2166 msleep( VOUT_DISPLAY_DELAY );
2171 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2175 if( p_owner->p_spu_vout != p_vout )
2177 vlc_mutex_lock( &p_owner->lock );
2179 DecoderFlushBuffering( p_dec );
2181 vlc_mutex_unlock( &p_owner->lock );
2183 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2184 &p_owner->i_spu_channel );
2185 p_owner->i_spu_order = 0;
2186 p_owner->p_spu_vout = p_vout;
2189 p_subpic = subpicture_New();
2192 p_subpic->i_channel = p_owner->i_spu_channel;
2193 p_subpic->i_order = p_owner->i_spu_order++;
2194 p_subpic->b_subtitle = true;
2197 vlc_object_release( p_vout );
2202 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2204 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2205 vout_thread_t *p_vout = NULL;
2207 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2208 if( !p_vout || p_owner->p_spu_vout != p_vout )
2211 vlc_object_release( p_vout );
2212 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2216 subpicture_Delete( p_subpic );
2218 vlc_object_release( p_vout );