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 -- */
131 picture_t *p_picture;
132 picture_t **pp_picture_next;
134 subpicture_t *p_subpic;
135 subpicture_t **pp_subpic_next;
137 aout_buffer_t *p_audio;
138 aout_buffer_t **pp_audio_next;
149 decoder_t *pp_decoder[4];
156 #define DECODER_MAX_BUFFERING_COUNT (4)
157 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
158 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
160 /*****************************************************************************
162 *****************************************************************************/
164 /* decoder_GetInputAttachment:
166 input_attachment_t *decoder_GetInputAttachment( decoder_t *p_dec,
167 const char *psz_name )
169 input_attachment_t *p_attachment;
170 if( input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENT, &p_attachment, psz_name ) )
174 /* decoder_GetInputAttachments:
176 int decoder_GetInputAttachments( decoder_t *p_dec,
177 input_attachment_t ***ppp_attachment,
180 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
181 ppp_attachment, pi_attachment );
183 /* decoder_GetDisplayDate:
185 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
187 decoder_owner_sys_t *p_owner = p_dec->p_owner;
189 vlc_mutex_lock( &p_owner->lock );
190 if( p_owner->b_buffering )
192 vlc_mutex_unlock( &p_owner->lock );
194 if( !p_owner->p_clock || !i_ts )
197 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
199 /* decoder_GetDisplayRate:
201 int decoder_GetDisplayRate( decoder_t *p_dec )
203 decoder_owner_sys_t *p_owner = p_dec->p_owner;
205 if( !p_owner->p_clock )
206 return INPUT_RATE_DEFAULT;
207 return input_clock_GetRate( p_owner->p_clock );
211 * Spawns a new decoder thread
213 * \param p_input the input thread
214 * \param p_es the es descriptor
215 * \return the spawned decoder object
217 decoder_t *input_DecoderNew( input_thread_t *p_input,
218 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
220 decoder_t *p_dec = NULL;
224 /* If we are in sout mode, search for packetizer module */
227 /* Create the decoder configuration structure */
228 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
231 msg_Err( p_input, "could not create packetizer" );
232 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
233 _("VLC could not open the packetizer module.") );
240 /* Create the decoder configuration structure */
241 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
244 msg_Err( p_input, "could not create decoder" );
245 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
246 _("VLC could not open the decoder module.") );
251 if( !p_dec->p_module )
253 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
255 DeleteDecoder( p_dec );
256 vlc_object_release( p_dec );
260 p_dec->p_owner->p_clock = p_clock;
262 if( fmt->i_cat == AUDIO_ES )
263 i_priority = VLC_THREAD_PRIORITY_AUDIO;
265 i_priority = VLC_THREAD_PRIORITY_VIDEO;
267 /* Spawn the decoder thread */
268 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
269 i_priority, false ) )
271 msg_Err( p_dec, "cannot spawn decoder thread" );
272 module_unneed( p_dec, p_dec->p_module );
273 DeleteDecoder( p_dec );
274 vlc_object_release( p_dec );
282 * Kills a decoder thread and waits until it's finished
284 * \param p_input the input thread
285 * \param p_es the es descriptor
288 void input_DecoderDelete( decoder_t *p_dec )
290 decoder_owner_sys_t *p_owner = p_dec->p_owner;
292 vlc_object_kill( p_dec );
294 /* Make sure we aren't paused anymore */
295 vlc_mutex_lock( &p_owner->lock );
296 if( p_owner->b_paused || p_owner->b_buffering )
298 p_owner->b_paused = false;
299 p_owner->b_buffering = false;
300 vlc_cond_signal( &p_owner->wait );
302 vlc_mutex_unlock( &p_owner->lock );
304 /* Make sure the thread leaves the function */
305 block_FifoWake( p_owner->p_fifo );
307 vlc_thread_join( p_dec );
309 /* Don't module_unneed() here because of the dll loader that wants
310 * close() in the same thread than open()/decode() */
313 if( p_dec->p_owner->cc.b_supported )
316 for( i = 0; i < 4; i++ )
317 input_DecoderSetCcState( p_dec, false, i );
320 /* Delete decoder configuration */
321 DeleteDecoder( p_dec );
323 /* Delete the decoder */
324 vlc_object_release( p_dec );
328 * Put a block_t in the decoder's fifo.
330 * \param p_dec the decoder object
331 * \param p_block the data block
333 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
335 decoder_owner_sys_t *p_owner = p_dec->p_owner;
337 if( p_owner->p_input->p->b_out_pace_control )
340 while( vlc_object_alive( p_dec ) &&
341 block_FifoCount( p_owner->p_fifo ) > 10 )
346 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
348 /* FIXME: ideally we would check the time amount of data
349 * in the fifo instead of its size. */
350 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
351 "consumed quickly enough), resetting fifo!" );
352 block_FifoEmpty( p_owner->p_fifo );
355 block_FifoPut( p_owner->p_fifo, p_block );
358 bool input_DecoderIsEmpty( decoder_t * p_dec )
360 assert( !p_dec->p_owner->b_buffering );
362 /* FIXME that's not really true */
363 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
366 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
368 decoder_owner_sys_t *p_owner = p_dec->p_owner;
371 vlc_mutex_lock( &p_owner->lock );
372 for( i = 0; i < 4; i++ )
373 pb_present[i] = p_owner->cc.pb_present[i];
374 vlc_mutex_unlock( &p_owner->lock );
376 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
378 decoder_owner_sys_t *p_owner = p_dec->p_owner;
380 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
382 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
387 static const vlc_fourcc_t fcc[4] = {
388 VLC_FOURCC('c', 'c', '1', ' '),
389 VLC_FOURCC('c', 'c', '2', ' '),
390 VLC_FOURCC('c', 'c', '3', ' '),
391 VLC_FOURCC('c', 'c', '4', ' '),
396 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
397 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
400 msg_Err( p_dec, "could not create decoder" );
401 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
402 _("VLC could not open the decoder module.") );
405 else if( !p_cc->p_module )
407 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
408 DeleteDecoder( p_cc );
409 vlc_object_release( p_cc );
412 p_cc->p_owner->p_clock = p_owner->p_clock;
414 vlc_mutex_lock( &p_owner->lock );
415 p_owner->cc.pp_decoder[i_channel] = p_cc;
416 vlc_mutex_unlock( &p_owner->lock );
422 vlc_mutex_lock( &p_owner->lock );
423 p_cc = p_owner->cc.pp_decoder[i_channel];
424 p_owner->cc.pp_decoder[i_channel] = NULL;
425 vlc_mutex_unlock( &p_owner->lock );
429 vlc_object_kill( p_cc );
430 module_unneed( p_cc, p_cc->p_module );
431 DeleteDecoder( p_cc );
432 vlc_object_release( p_cc );
437 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
439 decoder_owner_sys_t *p_owner = p_dec->p_owner;
442 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
445 vlc_mutex_lock( &p_owner->lock );
446 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
447 vlc_mutex_unlock( &p_owner->lock );
451 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
453 decoder_owner_sys_t *p_owner = p_dec->p_owner;
455 vlc_mutex_lock( &p_owner->lock );
457 assert( !p_owner->b_paused || !b_paused );
459 p_owner->b_paused = b_paused;
460 p_owner->pause.i_date = i_date;
461 vlc_cond_signal( &p_owner->wait );
463 DecoderOutputChangePause( p_dec, b_paused, i_date );
465 vlc_mutex_unlock( &p_owner->lock );
468 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
470 decoder_owner_sys_t *p_owner = p_dec->p_owner;
472 vlc_mutex_lock( &p_owner->lock );
473 p_owner->i_ts_delay = i_delay;
474 vlc_mutex_unlock( &p_owner->lock );
477 void input_DecoderStartBuffering( decoder_t *p_dec )
479 decoder_owner_sys_t *p_owner = p_dec->p_owner;
481 vlc_mutex_lock( &p_owner->lock );
483 DecoderFlush( p_dec );
485 p_owner->buffer.b_first = true;
486 p_owner->buffer.b_full = false;
487 p_owner->buffer.i_count = 0;
489 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
491 p_owner->buffer.p_picture = NULL;
492 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
494 p_owner->buffer.p_subpic = NULL;
495 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
497 p_owner->buffer.p_audio = NULL;
498 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
500 p_owner->b_buffering = true;
502 vlc_cond_signal( &p_owner->wait );
504 vlc_mutex_unlock( &p_owner->lock );
507 void input_DecoderStopBuffering( decoder_t *p_dec )
509 decoder_owner_sys_t *p_owner = p_dec->p_owner;
511 vlc_mutex_lock( &p_owner->lock );
513 p_owner->b_buffering = false;
515 vlc_cond_signal( &p_owner->wait );
517 vlc_mutex_unlock( &p_owner->lock );
520 void input_DecoderWaitBuffering( decoder_t *p_dec )
522 decoder_owner_sys_t *p_owner = p_dec->p_owner;
524 vlc_mutex_lock( &p_owner->lock );
526 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
528 block_FifoWake( p_owner->p_fifo );
529 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
532 vlc_mutex_unlock( &p_owner->lock );
535 /*****************************************************************************
537 *****************************************************************************/
540 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
542 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
543 "VLC probably does not support this sound or video format.",
545 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
546 _("VLC does not support the audio or video format \"%4.4s\". "
547 "Unfortunately there is no way for you to fix this."), (char*)&codec );
552 * Create a decoder object
554 * \param p_input the input thread
555 * \param p_es the es descriptor
556 * \param i_object_type Object type as define in include/vlc_objects.h
557 * \return the decoder object
559 static decoder_t * CreateDecoder( input_thread_t *p_input,
560 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
563 decoder_owner_sys_t *p_owner;
566 p_dec = vlc_object_create( p_input, i_object_type );
570 p_dec->pf_decode_audio = NULL;
571 p_dec->pf_decode_video = NULL;
572 p_dec->pf_decode_sub = NULL;
573 p_dec->pf_get_cc = NULL;
574 p_dec->pf_packetize = NULL;
576 /* Initialize the decoder fifo */
577 p_dec->p_module = NULL;
579 memset( &null_es_format, 0, sizeof(es_format_t) );
580 es_format_Copy( &p_dec->fmt_in, fmt );
581 es_format_Copy( &p_dec->fmt_out, &null_es_format );
583 /* Allocate our private structure for the decoder */
584 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
585 if( p_dec->p_owner == NULL )
587 vlc_object_release( p_dec );
590 p_dec->p_owner->i_preroll_end = -1;
591 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
592 p_dec->p_owner->p_input = p_input;
593 p_dec->p_owner->p_aout = NULL;
594 p_dec->p_owner->p_aout_input = NULL;
595 p_dec->p_owner->p_vout = NULL;
596 p_dec->p_owner->p_spu_vout = NULL;
597 p_dec->p_owner->i_spu_channel = 0;
598 p_dec->p_owner->i_spu_order = 0;
599 p_dec->p_owner->p_sout = p_sout;
600 p_dec->p_owner->p_sout_input = NULL;
601 p_dec->p_owner->p_packetizer = NULL;
604 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
606 free( p_dec->p_owner );
607 vlc_object_release( p_dec );
611 /* Set buffers allocation callbacks for the decoders */
612 p_dec->pf_aout_buffer_new = aout_new_buffer;
613 p_dec->pf_aout_buffer_del = aout_del_buffer;
614 p_dec->pf_vout_buffer_new = vout_new_buffer;
615 p_dec->pf_vout_buffer_del = vout_del_buffer;
616 p_dec->pf_picture_link = vout_link_picture;
617 p_dec->pf_picture_unlink = vout_unlink_picture;
618 p_dec->pf_spu_buffer_new = spu_new_buffer;
619 p_dec->pf_spu_buffer_del = spu_del_buffer;
621 vlc_object_attach( p_dec, p_input );
623 /* Find a suitable decoder/packetizer module */
624 if( i_object_type == VLC_OBJECT_DECODER )
625 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
627 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
629 /* Check if decoder requires already packetized data */
630 if( i_object_type == VLC_OBJECT_DECODER &&
631 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
633 p_dec->p_owner->p_packetizer =
634 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
635 if( p_dec->p_owner->p_packetizer )
637 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
640 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
643 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
645 p_dec->p_owner->p_packetizer->p_module =
646 module_need( p_dec->p_owner->p_packetizer,
647 "packetizer", "$packetizer", 0 );
649 if( !p_dec->p_owner->p_packetizer->p_module )
651 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
652 vlc_object_detach( p_dec->p_owner->p_packetizer );
653 vlc_object_release( p_dec->p_owner->p_packetizer );
658 /* Copy ourself the input replay gain */
659 if( fmt->i_cat == AUDIO_ES )
661 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
663 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
665 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
666 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
668 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
670 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
671 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
677 vlc_mutex_init( &p_owner->lock );
678 vlc_cond_init( &p_owner->wait );
680 p_owner->b_paused = false;
681 p_owner->pause.i_date = 0;
683 p_owner->b_buffering = false;
684 p_owner->buffer.b_first = true;
685 p_owner->buffer.b_full = false;
686 p_owner->buffer.i_count = 0;
687 p_owner->buffer.p_picture = NULL;
688 p_owner->buffer.p_subpic = NULL;
689 p_owner->buffer.p_audio = NULL;
691 p_owner->b_flushing = false;
694 p_owner->cc.b_supported = false;
695 if( i_object_type == VLC_OBJECT_DECODER )
697 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
698 p_owner->cc.b_supported = true;
699 if( p_dec->pf_get_cc )
700 p_owner->cc.b_supported = true;
703 for( i = 0; i < 4; i++ )
705 p_owner->cc.pb_present[i] = false;
706 p_owner->cc.pp_decoder[i] = NULL;
708 p_owner->i_ts_delay = 0;
713 * The decoding main loop
715 * \param p_dec the decoder
717 static void *DecoderThread( vlc_object_t *p_this )
719 decoder_t *p_dec = (decoder_t *)p_this;
720 decoder_owner_sys_t *p_owner = p_dec->p_owner;
722 int canc = vlc_savecancel();
724 /* The decoder's main loop */
725 while( vlc_object_alive( p_dec ) )
727 block_t *p_block = block_FifoGet( p_owner->p_fifo );
729 DecoderSignalBuffering( p_dec, p_block == NULL );
734 { /* Trash all received PES packets */
735 block_Release( p_block );
737 else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
742 DecoderSignalBuffering( p_dec, true );
744 /* We do it here because of the dll loader that wants close() in the
745 * same thread than open()/decode() */
746 module_unneed( p_dec, p_dec->p_module );
747 vlc_restorecancel( canc );
751 static void DecoderFlush( decoder_t *p_dec )
753 decoder_owner_sys_t *p_owner = p_dec->p_owner;
756 vlc_assert_locked( &p_owner->lock );
759 block_FifoEmpty( p_owner->p_fifo );
761 /* Monitor for flush end */
762 p_owner->b_flushing = true;
763 vlc_cond_signal( &p_owner->wait );
765 /* Send a special block */
766 p_null = block_New( p_dec, 128 );
769 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
770 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
771 if( !p_dec->fmt_in.b_packetized )
772 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
773 memset( p_null->p_buffer, 0, p_null->i_buffer );
775 input_DecoderDecode( p_dec, p_null );
778 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
779 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
782 static void DecoderSignalFlushed( decoder_t *p_dec )
784 decoder_owner_sys_t *p_owner = p_dec->p_owner;
786 vlc_mutex_lock( &p_owner->lock );
788 if( p_owner->b_flushing )
790 p_owner->b_flushing = false;
791 vlc_cond_signal( &p_owner->wait );
794 vlc_mutex_unlock( &p_owner->lock );
797 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
799 decoder_owner_sys_t *p_owner = p_dec->p_owner;
801 vlc_mutex_lock( &p_owner->lock );
803 if( p_owner->b_buffering )
806 p_owner->buffer.b_full = true;
807 vlc_cond_signal( &p_owner->wait );
810 vlc_mutex_unlock( &p_owner->lock );
813 static bool DecoderIsFlushing( decoder_t *p_dec )
815 decoder_owner_sys_t *p_owner = p_dec->p_owner;
818 vlc_mutex_lock( &p_owner->lock );
820 b_flushing = p_owner->b_flushing;
822 vlc_mutex_unlock( &p_owner->lock );
827 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
829 decoder_owner_sys_t *p_owner = p_dec->p_owner;
831 vlc_assert_locked( &p_owner->lock );
833 while( !p_owner->b_flushing )
835 if( p_owner->b_paused && p_owner->b_buffering && !p_owner->buffer.b_full )
838 if( !p_owner->b_paused && ( !p_owner->b_buffering || !p_owner->buffer.b_full ) )
841 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
845 *pb_reject = p_owner->b_flushing;
848 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
850 decoder_owner_sys_t *p_owner = p_dec->p_owner;
852 vlc_assert_locked( &p_owner->lock );
854 /* XXX only audio and video output have to be paused.
855 * - for sout it is useless
856 * - for subs, it is done by the vout
858 if( p_dec->fmt_in.i_cat == AUDIO_ES )
860 if( p_owner->p_aout && p_owner->p_aout_input )
861 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
864 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
866 if( p_owner->p_vout )
867 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
870 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
872 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
873 *pi_preroll = INT64_MAX;
874 else if( p->i_pts > 0 )
875 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
876 else if( p->i_dts > 0 )
877 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
880 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
882 mtime_t current_date = mdate();
884 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
885 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
887 /* ETSI EN 300 472 Annex A : do not take into account the PTS
888 * for teletext streams. */
889 return current_date + 400000 + i_ts_delay;
894 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
895 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
897 decoder_owner_sys_t *p_owner = p_dec->p_owner;
898 input_clock_t *p_clock = p_owner->p_clock;
901 vlc_assert_locked( &p_owner->lock );
903 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
904 const mtime_t i_es_delay = p_owner->i_ts_delay;
908 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
911 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
912 *pi_ts0 + i_es_delay );
913 if( pi_ts1 && *pi_ts1 > 0 )
914 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
915 *pi_ts1 + i_es_delay );
917 /* Do not create ephemere data because of rounding errors */
918 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
922 i_rate = input_clock_GetRate( p_clock );
925 *pi_duration = ( *pi_duration * i_rate +
926 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
933 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
934 if( pi_ts1 && *pi_ts1 <= 0 )
940 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
941 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
945 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
946 int *pi_played_sum, int *pi_lost_sum )
948 decoder_owner_sys_t *p_owner = p_dec->p_owner;
949 aout_instance_t *p_aout = p_owner->p_aout;
950 aout_input_t *p_aout_input = p_owner->p_aout_input;
953 if( p_audio->start_date <= 0 )
955 msg_Warn( p_dec, "non-dated audio buffer received" );
957 aout_BufferFree( p_audio );
962 vlc_mutex_lock( &p_owner->lock );
964 if( p_owner->b_buffering || p_owner->buffer.p_audio )
966 p_audio->p_next = NULL;
968 *p_owner->buffer.pp_audio_next = p_audio;
969 p_owner->buffer.pp_audio_next = &p_audio->p_next;
971 p_owner->buffer.i_count++;
972 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
973 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
975 p_owner->buffer.b_full = true;
976 vlc_cond_signal( &p_owner->wait );
982 bool b_has_more = false;
984 DecoderWaitUnblock( p_dec, &b_reject );
986 if( p_owner->b_buffering )
988 vlc_mutex_unlock( &p_owner->lock );
993 if( p_owner->buffer.p_audio )
995 p_audio = p_owner->buffer.p_audio;
997 p_owner->buffer.p_audio = p_audio->p_next;
998 p_owner->buffer.i_count--;
1000 b_has_more = p_owner->buffer.p_audio != NULL;
1002 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1006 int i_rate = INPUT_RATE_DEFAULT;
1009 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1010 &i_rate, &i_delay, false );
1012 vlc_mutex_unlock( &p_owner->lock );
1015 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1017 if( !p_aout || !p_aout_input ||
1018 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1019 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1020 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1025 /* Wait if we are too early
1026 * FIXME that's plain ugly to do it here */
1027 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1029 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1030 *pi_played_sum += 1;
1031 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1035 if( p_audio->start_date <= 0 )
1037 msg_Warn( p_dec, "non-dated audio buffer received" );
1039 else if( p_audio->start_date > i_max_date )
1041 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1042 p_audio->start_date - mdate() );
1045 aout_BufferFree( p_audio );
1051 vlc_mutex_lock( &p_owner->lock );
1052 if( !p_owner->buffer.p_audio )
1054 vlc_mutex_unlock( &p_owner->lock );
1060 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1062 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1063 input_thread_t *p_input = p_owner->p_input;
1064 aout_buffer_t *p_aout_buf;
1069 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1071 aout_instance_t *p_aout = p_owner->p_aout;
1072 aout_input_t *p_aout_input = p_owner->p_aout_input;
1078 /* It prevent freezing VLC in case of broken decoder */
1079 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1081 block_Release( p_block );
1086 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1088 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1092 if( p_owner->i_preroll_end > 0 )
1094 msg_Dbg( p_dec, "End of audio preroll" );
1095 if( p_owner->p_aout && p_owner->p_aout_input )
1096 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1098 p_owner->i_preroll_end = -1;
1101 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1104 /* Update ugly stat */
1105 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1107 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1109 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1111 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1113 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1116 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1119 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1121 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1127 assert( p_dec_cc->pf_get_cc != NULL );
1129 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1130 if( !p_owner->cc.b_supported )
1133 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1137 vlc_mutex_lock( &p_owner->lock );
1138 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1140 p_owner->cc.pb_present[i] |= pb_present[i];
1141 if( p_owner->cc.pp_decoder[i] )
1145 for( i = 0; i < 4; i++ )
1147 if( !p_owner->cc.pp_decoder[i] )
1150 if( i_cc_decoder > 1 )
1151 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1153 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1156 vlc_mutex_unlock( &p_owner->lock );
1159 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1160 int *pi_played_sum, int *pi_lost_sum )
1162 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1163 vout_thread_t *p_vout = p_owner->p_vout;
1164 bool b_first_buffered;
1166 if( p_picture->date <= 0 )
1168 msg_Warn( p_vout, "non-dated video buffer received" );
1170 vout_DropPicture( p_vout, p_picture );
1175 vlc_mutex_lock( &p_owner->lock );
1177 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1179 p_picture->p_next = NULL;
1181 *p_owner->buffer.pp_picture_next = p_picture;
1182 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1184 p_owner->buffer.i_count++;
1185 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1186 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1188 p_owner->buffer.b_full = true;
1189 vlc_cond_signal( &p_owner->wait );
1192 b_first_buffered = p_owner->buffer.p_picture != NULL;
1194 for( ;; b_first_buffered = false )
1196 bool b_has_more = false;
1199 DecoderWaitUnblock( p_dec, &b_reject );
1201 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1203 vlc_mutex_unlock( &p_owner->lock );
1206 bool b_buffering_first = p_owner->b_buffering;
1209 if( p_owner->buffer.p_picture )
1211 p_picture = p_owner->buffer.p_picture;
1213 p_owner->buffer.p_picture = p_picture->p_next;
1214 p_owner->buffer.i_count--;
1216 b_has_more = p_owner->buffer.p_picture != NULL;
1218 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1222 int i_rate = INPUT_RATE_DEFAULT;
1225 if( b_buffering_first )
1227 assert( p_owner->buffer.b_first );
1228 assert( !p_owner->buffer.i_count );
1229 msg_Dbg( p_dec, "Received first picture" );
1230 p_owner->buffer.b_first = false;
1231 p_picture->date = mdate();
1232 p_picture->b_force = true;
1234 if( p_owner->p_clock )
1235 i_rate = input_clock_GetRate( p_owner->p_clock );
1239 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1240 &i_rate, &i_delay, false );
1243 vlc_mutex_unlock( &p_owner->lock );
1246 const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1248 if( p_picture->date <= 0 || p_picture->date >= i_max_date )
1253 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1255 /* Be sure to not display old picture after our own */
1256 vout_Flush( p_vout, p_picture->date );
1257 p_owner->i_last_rate = i_rate;
1260 vout_DisplayPicture( p_vout, p_picture );
1264 if( p_picture->date <= 0 )
1266 msg_Warn( p_vout, "non-dated video buffer received" );
1270 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1271 p_picture->date - mdate() );
1274 vout_DropPicture( p_vout, p_picture );
1278 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1280 *pi_played_sum += i_tmp_display;
1281 *pi_lost_sum += i_tmp_lost;
1283 if( !b_has_more || b_buffering_first )
1286 vlc_mutex_lock( &p_owner->lock );
1287 if( !p_owner->buffer.p_picture )
1289 vlc_mutex_unlock( &p_owner->lock );
1295 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1297 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1298 input_thread_t *p_input = p_owner->p_input;
1302 int i_displayed = 0;
1304 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1306 vout_thread_t *p_vout = p_owner->p_vout;
1309 /* It prevent freezing VLC in case of broken decoder */
1310 vout_DropPicture( p_vout, p_pic );
1312 block_Release( p_block );
1318 if( p_pic->date < p_owner->i_preroll_end )
1320 vout_DropPicture( p_vout, p_pic );
1324 if( p_owner->i_preroll_end > 0 )
1326 msg_Dbg( p_dec, "End of video preroll" );
1328 vout_Flush( p_vout, 1 );
1330 p_owner->i_preroll_end = -1;
1333 if( p_dec->pf_get_cc &&
1334 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1335 DecoderGetCc( p_dec, p_dec );
1337 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1339 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1341 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1343 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1345 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1348 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1351 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1355 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1358 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1359 vout_thread_t *p_vout = p_owner->p_spu_vout;
1362 if( p_subpic->i_start <= 0 )
1364 msg_Warn( p_dec, "non-dated spu buffer received" );
1365 subpicture_Delete( p_subpic );
1370 vlc_mutex_lock( &p_owner->lock );
1372 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1374 p_subpic->p_next = NULL;
1376 *p_owner->buffer.pp_subpic_next = p_subpic;
1377 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1379 p_owner->buffer.i_count++;
1380 /* XXX it is important to be full after the first one */
1381 if( p_owner->buffer.i_count > 0 )
1383 p_owner->buffer.b_full = true;
1384 vlc_cond_signal( &p_owner->wait );
1390 bool b_has_more = false;
1392 DecoderWaitUnblock( p_dec, &b_reject );
1394 if( p_owner->b_buffering )
1396 vlc_mutex_unlock( &p_owner->lock );
1401 if( p_owner->buffer.p_subpic )
1403 p_subpic = p_owner->buffer.p_subpic;
1405 p_owner->buffer.p_subpic = p_subpic->p_next;
1406 p_owner->buffer.i_count--;
1408 b_has_more = p_owner->buffer.p_subpic != NULL;
1410 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1414 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1415 NULL, NULL, b_telx );
1417 vlc_mutex_unlock( &p_owner->lock );
1420 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1422 subpicture_Delete( p_subpic );
1426 vlc_mutex_lock( &p_owner->lock );
1427 if( !p_owner->buffer.p_subpic )
1429 vlc_mutex_unlock( &p_owner->lock );
1435 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1438 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1440 assert( p_owner->p_clock );
1442 vlc_mutex_lock( &p_owner->lock );
1445 DecoderWaitUnblock( p_dec, &b_reject );
1447 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1448 &p_sout_block->i_rate, NULL, b_telx );
1450 vlc_mutex_unlock( &p_owner->lock );
1452 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1456 static void DecoderFlushBuffering( decoder_t *p_dec )
1458 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1460 vlc_assert_locked( &p_owner->lock );
1462 while( p_owner->buffer.p_picture )
1464 picture_t *p_picture = p_owner->buffer.p_picture;
1466 p_owner->buffer.p_picture = p_picture->p_next;
1467 p_owner->buffer.i_count--;
1469 if( p_owner->p_vout )
1470 vout_DropPicture( p_owner->p_vout, p_picture );
1472 if( !p_owner->buffer.p_picture )
1473 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1475 while( p_owner->buffer.p_audio )
1477 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1479 p_owner->buffer.p_audio = p_audio->p_next;
1480 p_owner->buffer.i_count--;
1482 aout_BufferFree( p_audio );
1484 if( !p_owner->buffer.p_audio )
1485 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1487 while( p_owner->buffer.p_subpic )
1489 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1491 p_owner->buffer.p_subpic = p_subpic->p_next;
1492 p_owner->buffer.i_count--;
1494 subpicture_Delete( p_subpic );
1496 if( !p_owner->buffer.p_subpic )
1497 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1501 /* This function process a block for sout
1503 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1505 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1506 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1507 block_t *p_sout_block;
1509 while( ( p_sout_block =
1510 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1512 if( !p_owner->p_sout_input )
1514 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1516 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1517 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1518 if( p_dec->fmt_in.psz_language )
1520 if( p_owner->sout.psz_language )
1521 free( p_owner->sout.psz_language );
1522 p_owner->sout.psz_language =
1523 strdup( p_dec->fmt_in.psz_language );
1526 p_owner->p_sout_input =
1527 sout_InputNew( p_owner->p_sout,
1530 if( p_owner->p_sout_input == NULL )
1532 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1533 (char *)&p_owner->sout.i_codec );
1534 p_dec->b_error = true;
1536 while( p_sout_block )
1538 block_t *p_next = p_sout_block->p_next;
1539 block_Release( p_sout_block );
1540 p_sout_block = p_next;
1546 while( p_sout_block )
1548 block_t *p_next = p_sout_block->p_next;
1550 p_sout_block->p_next = NULL;
1552 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1554 p_sout_block = p_next;
1557 /* For now it's enough, as only sout impact on this flag */
1558 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1559 p_owner->p_input->p->b_out_pace_control )
1561 msg_Dbg( p_dec, "switching to sync mode" );
1562 p_owner->p_input->p->b_out_pace_control = false;
1564 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1565 !p_owner->p_input->p->b_out_pace_control )
1567 msg_Dbg( p_dec, "switching to async mode" );
1568 p_owner->p_input->p->b_out_pace_control = true;
1573 /* This function process a video block
1575 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1577 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1579 if( p_owner->p_packetizer )
1581 block_t *p_packetized_block;
1582 decoder_t *p_packetizer = p_owner->p_packetizer;
1584 while( (p_packetized_block =
1585 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1587 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1589 es_format_Clean( &p_dec->fmt_in );
1590 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1592 if( p_packetizer->pf_get_cc )
1593 DecoderGetCc( p_dec, p_packetizer );
1595 while( p_packetized_block )
1597 block_t *p_next = p_packetized_block->p_next;
1598 p_packetized_block->p_next = NULL;
1600 DecoderDecodeVideo( p_dec, p_packetized_block );
1602 p_packetized_block = p_next;
1608 DecoderDecodeVideo( p_dec, p_block );
1611 if( b_flush && p_owner->p_vout )
1612 vout_Flush( p_owner->p_vout, 1 );
1615 /* This function process a audio block
1617 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1619 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1621 if( p_owner->p_packetizer )
1623 block_t *p_packetized_block;
1624 decoder_t *p_packetizer = p_owner->p_packetizer;
1626 while( (p_packetized_block =
1627 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1629 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1631 es_format_Clean( &p_dec->fmt_in );
1632 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1635 while( p_packetized_block )
1637 block_t *p_next = p_packetized_block->p_next;
1638 p_packetized_block->p_next = NULL;
1640 DecoderDecodeAudio( p_dec, p_packetized_block );
1642 p_packetized_block = p_next;
1648 DecoderDecodeAudio( p_dec, p_block );
1651 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1652 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1655 /* This function process a subtitle block
1657 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1659 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1660 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1662 input_thread_t *p_input = p_owner->p_input;
1663 vout_thread_t *p_vout;
1664 subpicture_t *p_spu;
1666 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1668 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1669 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1670 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1672 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1673 if( p_vout && p_owner->p_spu_vout == p_vout )
1675 /* Preroll does not work very well with subtitle */
1676 if( p_spu->i_start > 0 &&
1677 p_spu->i_start < p_owner->i_preroll_end &&
1678 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1680 subpicture_Delete( p_spu );
1684 DecoderPlaySpu( p_dec, p_spu, b_telx );
1689 subpicture_Delete( p_spu );
1692 vlc_object_release( p_vout );
1695 if( b_flush && p_owner->p_spu_vout )
1697 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1699 if( p_vout && p_owner->p_spu_vout == p_vout )
1700 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1701 p_owner->i_spu_channel );
1704 vlc_object_release( p_vout );
1711 * \param p_dec the decoder object
1712 * \param p_block the block to decode
1713 * \return VLC_SUCCESS or an error code
1715 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1717 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1718 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1720 if( p_block && p_block->i_buffer <= 0 )
1722 assert( !b_flush_request );
1723 block_Release( p_block );
1728 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1731 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1733 DecoderProcessSout( p_dec, p_block );
1738 bool b_flush = false;
1742 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1743 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1745 b_flush = !b_flushing && b_flush_request;
1747 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1750 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1752 DecoderProcessAudio( p_dec, p_block, b_flush );
1754 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1756 DecoderProcessVideo( p_dec, p_block, b_flush );
1758 else if( p_dec->fmt_in.i_cat == SPU_ES )
1760 DecoderProcessSpu( p_dec, p_block, b_flush );
1764 msg_Err( p_dec, "unknown ES format" );
1765 p_dec->b_error = true;
1770 if( b_flush_request )
1772 vlc_mutex_lock( &p_owner->lock );
1773 DecoderFlushBuffering( p_dec );
1774 vlc_mutex_unlock( &p_owner->lock );
1776 DecoderSignalFlushed( p_dec );
1779 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1783 * Destroys a decoder object
1785 * \param p_dec the decoder object
1788 static void DeleteDecoder( decoder_t * p_dec )
1790 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1792 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1793 (char*)&p_dec->fmt_in.i_codec,
1794 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1796 /* Free all packets still in the decoder fifo. */
1797 block_FifoEmpty( p_owner->p_fifo );
1798 block_FifoRelease( p_owner->p_fifo );
1801 vlc_mutex_lock( &p_owner->lock );
1802 DecoderFlushBuffering( p_dec );
1803 vlc_mutex_unlock( &p_owner->lock );
1806 if( p_owner->p_aout_input )
1807 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1808 if( p_owner->p_aout )
1810 vlc_object_release( p_owner->p_aout );
1811 p_owner->p_aout = NULL;
1813 if( p_owner->p_vout )
1815 /* Hack to make sure all the the pictures are freed by the decoder */
1816 vout_FixLeaks( p_owner->p_vout, true );
1818 /* We are about to die. Reattach video output to p_vlc. */
1819 vout_Request( p_dec, p_owner->p_vout, NULL );
1820 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1824 if( p_owner->p_sout_input )
1826 sout_InputDelete( p_owner->p_sout_input );
1827 es_format_Clean( &p_owner->sout );
1831 if( p_dec->fmt_in.i_cat == SPU_ES )
1833 vout_thread_t *p_vout;
1835 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1836 if( p_vout && p_owner->p_spu_vout == p_vout )
1838 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1839 p_owner->i_spu_channel );
1840 vlc_object_release( p_vout );
1844 es_format_Clean( &p_dec->fmt_in );
1845 es_format_Clean( &p_dec->fmt_out );
1847 if( p_owner->p_packetizer )
1849 module_unneed( p_owner->p_packetizer,
1850 p_owner->p_packetizer->p_module );
1851 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1852 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1853 vlc_object_detach( p_owner->p_packetizer );
1854 vlc_object_release( p_owner->p_packetizer );
1857 vlc_cond_destroy( &p_owner->wait );
1858 vlc_mutex_destroy( &p_owner->lock );
1860 vlc_object_detach( p_dec );
1865 /*****************************************************************************
1866 * Buffers allocation callbacks for the decoders
1867 *****************************************************************************/
1868 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1870 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1871 aout_buffer_t *p_buffer;
1873 if( p_owner->p_aout_input != NULL &&
1874 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1875 p_dec->fmt_out.audio.i_original_channels !=
1876 p_owner->audio.i_original_channels ||
1877 p_dec->fmt_out.audio.i_bytes_per_frame !=
1878 p_owner->audio.i_bytes_per_frame ) )
1880 aout_input_t *p_aout_input = p_owner->p_aout_input;
1882 /* Parameters changed, restart the aout */
1883 vlc_mutex_lock( &p_owner->lock );
1885 DecoderFlushBuffering( p_dec );
1887 p_owner->p_aout_input = NULL;
1888 aout_DecDelete( p_owner->p_aout, p_aout_input );
1890 vlc_mutex_unlock( &p_owner->lock );
1893 if( p_owner->p_aout_input == NULL )
1895 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1896 audio_sample_format_t format;
1897 aout_input_t *p_aout_input;
1898 aout_instance_t *p_aout;
1900 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1901 p_owner->audio = p_dec->fmt_out.audio;
1903 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1904 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1905 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1907 if ( i_force_dolby == 1 )
1909 format.i_original_channels = format.i_original_channels |
1910 AOUT_CHAN_DOLBYSTEREO;
1912 else /* i_force_dolby == 2 */
1914 format.i_original_channels = format.i_original_channels &
1915 ~AOUT_CHAN_DOLBYSTEREO;
1919 p_aout = p_owner->p_aout;
1920 p_aout_input = aout_DecNew( p_dec, &p_aout,
1921 &format, &p_dec->fmt_out.audio_replay_gain );
1923 vlc_mutex_lock( &p_owner->lock );
1924 p_owner->p_aout = p_aout;
1925 p_owner->p_aout_input = p_aout_input;
1926 vlc_mutex_unlock( &p_owner->lock );
1928 if( p_owner->p_aout_input == NULL )
1930 msg_Err( p_dec, "failed to create audio output" );
1931 p_dec->b_error = true;
1934 p_dec->fmt_out.audio.i_bytes_per_frame =
1935 p_owner->audio.i_bytes_per_frame;
1938 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1943 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1945 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1947 aout_DecDeleteBuffer( p_owner->p_aout,
1948 p_owner->p_aout_input, p_buffer );
1952 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1954 static picture_t *vout_new_buffer( decoder_t *p_dec )
1956 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1958 if( p_owner->p_vout == NULL ||
1959 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
1960 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
1961 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
1962 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
1964 vout_thread_t *p_vout;
1966 if( !p_dec->fmt_out.video.i_width ||
1967 !p_dec->fmt_out.video.i_height )
1969 /* Can't create a new vout without display size */
1973 if( !p_dec->fmt_out.video.i_visible_width ||
1974 !p_dec->fmt_out.video.i_visible_height )
1976 if( p_dec->fmt_in.video.i_visible_width &&
1977 p_dec->fmt_in.video.i_visible_height )
1979 p_dec->fmt_out.video.i_visible_width =
1980 p_dec->fmt_in.video.i_visible_width;
1981 p_dec->fmt_out.video.i_visible_height =
1982 p_dec->fmt_in.video.i_visible_height;
1986 p_dec->fmt_out.video.i_visible_width =
1987 p_dec->fmt_out.video.i_width;
1988 p_dec->fmt_out.video.i_visible_height =
1989 p_dec->fmt_out.video.i_height;
1993 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1994 var_CreateGetBool( p_dec, "hdtv-fix" ) )
1996 p_dec->fmt_out.video.i_visible_height = 1080;
1997 p_dec->fmt_out.video.i_sar_num *= 135;
1998 p_dec->fmt_out.video.i_sar_den *= 136;
1999 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2002 if( !p_dec->fmt_out.video.i_sar_num ||
2003 !p_dec->fmt_out.video.i_sar_den )
2005 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2006 p_dec->fmt_out.video.i_visible_height;
2008 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2009 p_dec->fmt_out.video.i_visible_width;
2012 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2013 &p_dec->fmt_out.video.i_sar_den,
2014 p_dec->fmt_out.video.i_sar_num,
2015 p_dec->fmt_out.video.i_sar_den, 50000 );
2017 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2018 p_owner->video = p_dec->fmt_out.video;
2020 vlc_mutex_lock( &p_owner->lock );
2022 DecoderFlushBuffering( p_dec );
2024 p_vout = p_owner->p_vout;
2025 p_owner->p_vout = NULL;
2026 vlc_mutex_unlock( &p_owner->lock );
2028 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2030 vlc_mutex_lock( &p_owner->lock );
2031 p_owner->p_vout = p_vout;
2032 vlc_mutex_unlock( &p_owner->lock );
2034 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2035 if( p_vout == NULL )
2037 msg_Err( p_dec, "failed to create video output" );
2038 p_dec->b_error = true;
2042 if( p_owner->video.i_rmask )
2043 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2044 if( p_owner->video.i_gmask )
2045 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2046 if( p_owner->video.i_bmask )
2047 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2050 /* Get a new picture
2054 picture_t *p_picture;
2056 if( p_dec->b_die || p_dec->b_error )
2059 /* The video filter chain required that there is always 1 free buffer
2060 * that it will use as temporary one. It will release the temporary
2061 * buffer once its work is done, so this check is safe even if we don't
2062 * lock around both count() and create().
2064 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2066 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2071 if( DecoderIsFlushing( p_dec ) )
2075 DecoderSignalBuffering( p_dec, true );
2077 /* Check the decoder doesn't leak pictures */
2078 vout_FixLeaks( p_owner->p_vout, false );
2080 msleep( VOUT_OUTMEM_SLEEP );
2084 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2086 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2089 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2091 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2094 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2096 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2099 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2101 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2102 vout_thread_t *p_vout = NULL;
2103 subpicture_t *p_subpic;
2104 int i_attempts = 30;
2106 while( i_attempts-- )
2108 if( p_dec->b_die || p_dec->b_error )
2111 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2115 msleep( VOUT_DISPLAY_DELAY );
2120 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2124 if( p_owner->p_spu_vout != p_vout )
2126 vlc_mutex_lock( &p_owner->lock );
2128 DecoderFlushBuffering( p_dec );
2130 vlc_mutex_unlock( &p_owner->lock );
2132 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2133 &p_owner->i_spu_channel );
2134 p_owner->i_spu_order = 0;
2135 p_owner->p_spu_vout = p_vout;
2138 p_subpic = subpicture_New();
2141 p_subpic->i_channel = p_owner->i_spu_channel;
2142 p_subpic->i_order = p_owner->i_spu_order++;
2143 p_subpic->b_subtitle = true;
2146 vlc_object_release( p_vout );
2151 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2153 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2154 vout_thread_t *p_vout = NULL;
2156 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2157 if( !p_vout || p_owner->p_spu_vout != p_vout )
2160 vlc_object_release( p_vout );
2161 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2165 subpicture_Delete( p_subpic );
2167 vlc_object_release( p_vout );