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 vlc_thread_join( p_dec );
290 module_unneed( p_dec, p_dec->p_module );
293 if( p_dec->p_owner->cc.b_supported )
296 for( i = 0; i < 4; i++ )
297 input_DecoderSetCcState( p_dec, false, i );
300 /* Delete decoder configuration */
301 DeleteDecoder( p_dec );
303 /* Delete the decoder */
304 vlc_object_release( p_dec );
308 * Put a block_t in the decoder's fifo.
310 * \param p_dec the decoder object
311 * \param p_block the data block
313 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
315 decoder_owner_sys_t *p_owner = p_dec->p_owner;
317 if( p_owner->p_input->p->b_out_pace_control )
320 while( vlc_object_alive( p_dec ) &&
321 block_FifoCount( p_owner->p_fifo ) > 10 )
326 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
328 /* FIXME: ideally we would check the time amount of data
329 * in the fifo instead of its size. */
330 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
331 "consumed quickly enough), resetting fifo!" );
332 block_FifoEmpty( p_owner->p_fifo );
335 block_FifoPut( p_owner->p_fifo, p_block );
338 bool input_DecoderIsEmpty( decoder_t * p_dec )
340 assert( !p_dec->p_owner->b_buffering );
342 /* FIXME that's not really true */
343 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
346 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
348 decoder_owner_sys_t *p_owner = p_dec->p_owner;
351 vlc_mutex_lock( &p_owner->lock );
352 for( i = 0; i < 4; i++ )
353 pb_present[i] = p_owner->cc.pb_present[i];
354 vlc_mutex_unlock( &p_owner->lock );
356 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
358 decoder_owner_sys_t *p_owner = p_dec->p_owner;
360 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
362 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
367 static const vlc_fourcc_t fcc[4] = {
368 VLC_FOURCC('c', 'c', '1', ' '),
369 VLC_FOURCC('c', 'c', '2', ' '),
370 VLC_FOURCC('c', 'c', '3', ' '),
371 VLC_FOURCC('c', 'c', '4', ' '),
376 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
377 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
380 msg_Err( p_dec, "could not create decoder" );
381 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
382 _("VLC could not open the decoder module.") );
385 else if( !p_cc->p_module )
387 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
388 DeleteDecoder( p_cc );
389 vlc_object_release( p_cc );
392 p_cc->p_owner->p_clock = p_owner->p_clock;
394 vlc_mutex_lock( &p_owner->lock );
395 p_owner->cc.pp_decoder[i_channel] = p_cc;
396 vlc_mutex_unlock( &p_owner->lock );
402 vlc_mutex_lock( &p_owner->lock );
403 p_cc = p_owner->cc.pp_decoder[i_channel];
404 p_owner->cc.pp_decoder[i_channel] = NULL;
405 vlc_mutex_unlock( &p_owner->lock );
409 vlc_object_kill( p_cc );
410 module_unneed( p_cc, p_cc->p_module );
411 DeleteDecoder( p_cc );
412 vlc_object_release( p_cc );
417 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
419 decoder_owner_sys_t *p_owner = p_dec->p_owner;
422 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
425 vlc_mutex_lock( &p_owner->lock );
426 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
427 vlc_mutex_unlock( &p_owner->lock );
431 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
433 decoder_owner_sys_t *p_owner = p_dec->p_owner;
435 vlc_mutex_lock( &p_owner->lock );
437 assert( !p_owner->b_paused || !b_paused );
439 p_owner->b_paused = b_paused;
440 p_owner->pause.i_date = i_date;
441 p_owner->pause.i_ignore = 0;
442 vlc_cond_signal( &p_owner->wait );
444 DecoderOutputChangePause( p_dec, b_paused, i_date );
446 vlc_mutex_unlock( &p_owner->lock );
449 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
451 decoder_owner_sys_t *p_owner = p_dec->p_owner;
453 vlc_mutex_lock( &p_owner->lock );
454 p_owner->i_ts_delay = i_delay;
455 vlc_mutex_unlock( &p_owner->lock );
458 void input_DecoderStartBuffering( decoder_t *p_dec )
460 decoder_owner_sys_t *p_owner = p_dec->p_owner;
462 vlc_mutex_lock( &p_owner->lock );
464 DecoderFlush( p_dec );
466 p_owner->buffer.b_first = true;
467 p_owner->buffer.b_full = false;
468 p_owner->buffer.i_count = 0;
470 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
472 p_owner->buffer.p_picture = NULL;
473 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
475 p_owner->buffer.p_subpic = NULL;
476 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
478 p_owner->buffer.p_audio = NULL;
479 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
481 p_owner->b_buffering = true;
483 vlc_cond_signal( &p_owner->wait );
485 vlc_mutex_unlock( &p_owner->lock );
488 void input_DecoderStopBuffering( decoder_t *p_dec )
490 decoder_owner_sys_t *p_owner = p_dec->p_owner;
492 vlc_mutex_lock( &p_owner->lock );
494 p_owner->b_buffering = false;
496 vlc_cond_signal( &p_owner->wait );
498 vlc_mutex_unlock( &p_owner->lock );
501 void input_DecoderWaitBuffering( decoder_t *p_dec )
503 decoder_owner_sys_t *p_owner = p_dec->p_owner;
505 vlc_mutex_lock( &p_owner->lock );
507 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
509 block_FifoWake( p_owner->p_fifo );
510 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
513 vlc_mutex_unlock( &p_owner->lock );
515 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
517 decoder_owner_sys_t *p_owner = p_dec->p_owner;
521 vlc_mutex_lock( &p_owner->lock );
522 if( p_dec->fmt_in.i_cat == VIDEO_ES )
524 if( p_owner->b_paused && p_owner->p_vout )
526 vout_NextPicture( p_owner->p_vout, pi_duration );
527 p_owner->pause.i_ignore++;
528 vlc_cond_signal( &p_owner->wait );
533 /* TODO subtitle should not be flushed */
534 DecoderFlush( p_dec );
536 vlc_mutex_unlock( &p_owner->lock );
539 /*****************************************************************************
541 *****************************************************************************/
542 static int DecoderGetInputAttachments( decoder_t *p_dec,
543 input_attachment_t ***ppp_attachment,
546 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
547 ppp_attachment, pi_attachment );
549 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
551 decoder_owner_sys_t *p_owner = p_dec->p_owner;
553 vlc_mutex_lock( &p_owner->lock );
554 if( p_owner->b_buffering || p_owner->b_paused )
556 vlc_mutex_unlock( &p_owner->lock );
558 if( !p_owner->p_clock || !i_ts )
561 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
563 static int DecoderGetDisplayRate( decoder_t *p_dec )
565 decoder_owner_sys_t *p_owner = p_dec->p_owner;
567 if( !p_owner->p_clock )
568 return INPUT_RATE_DEFAULT;
569 return input_clock_GetRate( p_owner->p_clock );
573 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
575 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
576 "VLC probably does not support this sound or video format.",
578 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
579 _("VLC does not support the audio or video format \"%4.4s\". "
580 "Unfortunately there is no way for you to fix this."), (char*)&codec );
585 * Create a decoder object
587 * \param p_input the input thread
588 * \param p_es the es descriptor
589 * \param i_object_type Object type as define in include/vlc_objects.h
590 * \return the decoder object
592 static decoder_t * CreateDecoder( input_thread_t *p_input,
593 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
596 decoder_owner_sys_t *p_owner;
599 p_dec = vlc_object_create( p_input, i_object_type );
603 p_dec->pf_decode_audio = NULL;
604 p_dec->pf_decode_video = NULL;
605 p_dec->pf_decode_sub = NULL;
606 p_dec->pf_get_cc = NULL;
607 p_dec->pf_packetize = NULL;
609 /* Initialize the decoder fifo */
610 p_dec->p_module = NULL;
612 memset( &null_es_format, 0, sizeof(es_format_t) );
613 es_format_Copy( &p_dec->fmt_in, fmt );
614 es_format_Copy( &p_dec->fmt_out, &null_es_format );
616 /* Allocate our private structure for the decoder */
617 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
618 if( p_dec->p_owner == NULL )
620 vlc_object_release( p_dec );
623 p_dec->p_owner->i_preroll_end = -1;
624 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
625 p_dec->p_owner->p_input = p_input;
626 p_dec->p_owner->p_aout = NULL;
627 p_dec->p_owner->p_aout_input = NULL;
628 p_dec->p_owner->p_vout = NULL;
629 p_dec->p_owner->p_spu_vout = NULL;
630 p_dec->p_owner->i_spu_channel = 0;
631 p_dec->p_owner->i_spu_order = 0;
632 p_dec->p_owner->p_sout = p_sout;
633 p_dec->p_owner->p_sout_input = NULL;
634 p_dec->p_owner->p_packetizer = NULL;
637 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
639 free( p_dec->p_owner );
640 vlc_object_release( p_dec );
644 /* Set buffers allocation callbacks for the decoders */
645 p_dec->pf_aout_buffer_new = aout_new_buffer;
646 p_dec->pf_aout_buffer_del = aout_del_buffer;
647 p_dec->pf_vout_buffer_new = vout_new_buffer;
648 p_dec->pf_vout_buffer_del = vout_del_buffer;
649 p_dec->pf_picture_link = vout_link_picture;
650 p_dec->pf_picture_unlink = vout_unlink_picture;
651 p_dec->pf_spu_buffer_new = spu_new_buffer;
652 p_dec->pf_spu_buffer_del = spu_del_buffer;
654 p_dec->pf_get_attachments = DecoderGetInputAttachments;
655 p_dec->pf_get_display_date = DecoderGetDisplayDate;
656 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
658 vlc_object_attach( p_dec, p_input );
660 /* Find a suitable decoder/packetizer module */
661 if( i_object_type == VLC_OBJECT_DECODER )
662 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
664 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
666 /* Check if decoder requires already packetized data */
667 if( i_object_type == VLC_OBJECT_DECODER &&
668 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
670 p_dec->p_owner->p_packetizer =
671 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
672 if( p_dec->p_owner->p_packetizer )
674 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
677 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
680 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
682 p_dec->p_owner->p_packetizer->p_module =
683 module_need( p_dec->p_owner->p_packetizer,
684 "packetizer", "$packetizer", 0 );
686 if( !p_dec->p_owner->p_packetizer->p_module )
688 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
689 vlc_object_detach( p_dec->p_owner->p_packetizer );
690 vlc_object_release( p_dec->p_owner->p_packetizer );
695 /* Copy ourself the input replay gain */
696 if( fmt->i_cat == AUDIO_ES )
698 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
700 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
702 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
703 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
705 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
707 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
708 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
714 vlc_mutex_init( &p_owner->lock );
715 vlc_cond_init( &p_owner->wait );
717 p_owner->b_paused = false;
718 p_owner->pause.i_date = 0;
719 p_owner->pause.i_ignore = 0;
721 p_owner->b_buffering = false;
722 p_owner->buffer.b_first = true;
723 p_owner->buffer.b_full = false;
724 p_owner->buffer.i_count = 0;
725 p_owner->buffer.p_picture = NULL;
726 p_owner->buffer.p_subpic = NULL;
727 p_owner->buffer.p_audio = NULL;
729 p_owner->b_flushing = false;
732 p_owner->cc.b_supported = false;
733 if( i_object_type == VLC_OBJECT_DECODER )
735 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
736 p_owner->cc.b_supported = true;
737 if( p_dec->pf_get_cc )
738 p_owner->cc.b_supported = true;
741 for( i = 0; i < 4; i++ )
743 p_owner->cc.pb_present[i] = false;
744 p_owner->cc.pp_decoder[i] = NULL;
746 p_owner->i_ts_delay = 0;
751 * The decoding main loop
753 * \param p_dec the decoder
755 static void *DecoderThread( vlc_object_t *p_this )
757 decoder_t *p_dec = (decoder_t *)p_this;
758 decoder_owner_sys_t *p_owner = p_dec->p_owner;
760 /* The decoder's main loop */
763 block_t *p_block = block_FifoGet( p_owner->p_fifo );
764 /* Make sure there is no cancellation point other than this one^^.
765 * If you need one, be sure to push cleanup of p_block. */
766 DecoderSignalBuffering( p_dec, p_block == NULL );
771 { /* Trash all received PES packets */
772 block_Release( p_block );
774 else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
781 DecoderSignalBuffering( p_dec, true );
785 static void DecoderFlush( decoder_t *p_dec )
787 decoder_owner_sys_t *p_owner = p_dec->p_owner;
790 vlc_assert_locked( &p_owner->lock );
793 block_FifoEmpty( p_owner->p_fifo );
795 /* Monitor for flush end */
796 p_owner->b_flushing = true;
797 vlc_cond_signal( &p_owner->wait );
799 /* Send a special block */
800 p_null = block_New( p_dec, 128 );
803 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
804 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
805 if( !p_dec->fmt_in.b_packetized )
806 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
807 memset( p_null->p_buffer, 0, p_null->i_buffer );
809 input_DecoderDecode( p_dec, p_null );
812 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
813 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
816 static void DecoderSignalFlushed( decoder_t *p_dec )
818 decoder_owner_sys_t *p_owner = p_dec->p_owner;
820 vlc_mutex_lock( &p_owner->lock );
822 if( p_owner->b_flushing )
824 p_owner->b_flushing = false;
825 vlc_cond_signal( &p_owner->wait );
828 vlc_mutex_unlock( &p_owner->lock );
831 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
833 decoder_owner_sys_t *p_owner = p_dec->p_owner;
835 vlc_mutex_lock( &p_owner->lock );
837 if( p_owner->b_buffering )
840 p_owner->buffer.b_full = true;
841 vlc_cond_signal( &p_owner->wait );
844 vlc_mutex_unlock( &p_owner->lock );
847 static bool DecoderIsFlushing( decoder_t *p_dec )
849 decoder_owner_sys_t *p_owner = p_dec->p_owner;
852 vlc_mutex_lock( &p_owner->lock );
854 b_flushing = p_owner->b_flushing;
856 vlc_mutex_unlock( &p_owner->lock );
861 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
863 decoder_owner_sys_t *p_owner = p_dec->p_owner;
865 vlc_assert_locked( &p_owner->lock );
867 while( !p_owner->b_flushing )
869 if( p_owner->b_paused )
871 if( p_owner->b_buffering && !p_owner->buffer.b_full )
873 if( p_owner->pause.i_ignore > 0 )
875 p_owner->pause.i_ignore--;
881 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
884 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
888 *pb_reject = p_owner->b_flushing;
891 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
893 decoder_owner_sys_t *p_owner = p_dec->p_owner;
895 vlc_assert_locked( &p_owner->lock );
897 /* XXX only audio and video output have to be paused.
898 * - for sout it is useless
899 * - for subs, it is done by the vout
901 if( p_dec->fmt_in.i_cat == AUDIO_ES )
903 if( p_owner->p_aout && p_owner->p_aout_input )
904 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
907 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
909 if( p_owner->p_vout )
910 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
913 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
915 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
916 *pi_preroll = INT64_MAX;
917 else if( p->i_pts > 0 )
918 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
919 else if( p->i_dts > 0 )
920 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
923 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
925 mtime_t current_date = mdate();
927 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
928 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
930 /* ETSI EN 300 472 Annex A : do not take into account the PTS
931 * for teletext streams. */
932 return current_date + 400000 + i_ts_delay;
937 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
938 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
940 decoder_owner_sys_t *p_owner = p_dec->p_owner;
941 input_clock_t *p_clock = p_owner->p_clock;
944 vlc_assert_locked( &p_owner->lock );
946 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
947 const mtime_t i_es_delay = p_owner->i_ts_delay;
951 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
954 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
955 *pi_ts0 + i_es_delay );
956 if( pi_ts1 && *pi_ts1 > 0 )
957 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
958 *pi_ts1 + i_es_delay );
960 /* Do not create ephemere data because of rounding errors */
961 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
965 i_rate = input_clock_GetRate( p_clock );
968 *pi_duration = ( *pi_duration * i_rate +
969 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
976 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
977 if( pi_ts1 && *pi_ts1 <= 0 )
983 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
984 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
988 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
989 int *pi_played_sum, int *pi_lost_sum )
991 decoder_owner_sys_t *p_owner = p_dec->p_owner;
992 aout_instance_t *p_aout = p_owner->p_aout;
993 aout_input_t *p_aout_input = p_owner->p_aout_input;
996 if( p_audio->start_date <= 0 )
998 msg_Warn( p_dec, "non-dated audio buffer received" );
1000 aout_BufferFree( p_audio );
1005 vlc_mutex_lock( &p_owner->lock );
1007 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1009 p_audio->p_next = NULL;
1011 *p_owner->buffer.pp_audio_next = p_audio;
1012 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1014 p_owner->buffer.i_count++;
1015 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1016 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1018 p_owner->buffer.b_full = true;
1019 vlc_cond_signal( &p_owner->wait );
1025 bool b_has_more = false;
1027 DecoderWaitUnblock( p_dec, &b_reject );
1029 if( p_owner->b_buffering )
1031 vlc_mutex_unlock( &p_owner->lock );
1036 if( p_owner->buffer.p_audio )
1038 p_audio = p_owner->buffer.p_audio;
1040 p_owner->buffer.p_audio = p_audio->p_next;
1041 p_owner->buffer.i_count--;
1043 b_has_more = p_owner->buffer.p_audio != NULL;
1045 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1049 int i_rate = INPUT_RATE_DEFAULT;
1052 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1053 &i_rate, &i_delay, false );
1055 vlc_mutex_unlock( &p_owner->lock );
1058 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1060 if( !p_aout || !p_aout_input ||
1061 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1062 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1063 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1068 /* Wait if we are too early
1069 * FIXME that's plain ugly to do it here */
1070 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1072 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1073 *pi_played_sum += 1;
1074 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1078 if( p_audio->start_date <= 0 )
1080 msg_Warn( p_dec, "non-dated audio buffer received" );
1082 else if( p_audio->start_date > i_max_date )
1084 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1085 p_audio->start_date - mdate() );
1088 aout_BufferFree( p_audio );
1094 vlc_mutex_lock( &p_owner->lock );
1095 if( !p_owner->buffer.p_audio )
1097 vlc_mutex_unlock( &p_owner->lock );
1103 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1105 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1106 input_thread_t *p_input = p_owner->p_input;
1107 aout_buffer_t *p_aout_buf;
1112 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1114 aout_instance_t *p_aout = p_owner->p_aout;
1115 aout_input_t *p_aout_input = p_owner->p_aout_input;
1121 /* It prevent freezing VLC in case of broken decoder */
1122 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1124 block_Release( p_block );
1129 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1131 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1135 if( p_owner->i_preroll_end > 0 )
1137 msg_Dbg( p_dec, "End of audio preroll" );
1138 if( p_owner->p_aout && p_owner->p_aout_input )
1139 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1141 p_owner->i_preroll_end = -1;
1144 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1147 /* Update ugly stat */
1148 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1150 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1152 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1154 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1156 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1159 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1162 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1164 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1170 assert( p_dec_cc->pf_get_cc != NULL );
1172 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1173 if( !p_owner->cc.b_supported )
1176 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1180 vlc_mutex_lock( &p_owner->lock );
1181 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1183 p_owner->cc.pb_present[i] |= pb_present[i];
1184 if( p_owner->cc.pp_decoder[i] )
1188 for( i = 0; i < 4; i++ )
1190 if( !p_owner->cc.pp_decoder[i] )
1193 if( i_cc_decoder > 1 )
1194 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1196 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1199 vlc_mutex_unlock( &p_owner->lock );
1202 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1203 int *pi_played_sum, int *pi_lost_sum )
1205 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1206 vout_thread_t *p_vout = p_owner->p_vout;
1207 bool b_first_buffered;
1209 if( p_picture->date <= 0 )
1211 msg_Warn( p_vout, "non-dated video buffer received" );
1213 vout_DropPicture( p_vout, p_picture );
1218 vlc_mutex_lock( &p_owner->lock );
1220 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1222 p_picture->p_next = NULL;
1224 *p_owner->buffer.pp_picture_next = p_picture;
1225 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1227 p_owner->buffer.i_count++;
1228 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1229 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1231 p_owner->buffer.b_full = true;
1232 vlc_cond_signal( &p_owner->wait );
1235 b_first_buffered = p_owner->buffer.p_picture != NULL;
1237 for( ;; b_first_buffered = false )
1239 bool b_has_more = false;
1243 DecoderWaitUnblock( p_dec, &b_reject );
1245 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1247 vlc_mutex_unlock( &p_owner->lock );
1250 bool b_buffering_first = p_owner->b_buffering;
1253 if( p_owner->buffer.p_picture )
1255 p_picture = p_owner->buffer.p_picture;
1257 p_owner->buffer.p_picture = p_picture->p_next;
1258 p_owner->buffer.i_count--;
1260 b_has_more = p_owner->buffer.p_picture != NULL;
1262 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1266 int i_rate = INPUT_RATE_DEFAULT;
1269 if( b_buffering_first )
1271 assert( p_owner->buffer.b_first );
1272 assert( !p_owner->buffer.i_count );
1273 msg_Dbg( p_dec, "Received first picture" );
1274 p_owner->buffer.b_first = false;
1275 p_picture->b_force = true;
1277 if( p_owner->p_clock )
1278 i_rate = input_clock_GetRate( p_owner->p_clock );
1280 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1281 &i_rate, &i_delay, false );
1283 vlc_mutex_unlock( &p_owner->lock );
1286 const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1288 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1293 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1295 /* Be sure to not display old picture after our own */
1296 vout_Flush( p_vout, p_picture->date );
1297 p_owner->i_last_rate = i_rate;
1299 vout_DisplayPicture( p_vout, p_picture );
1303 if( p_picture->date <= 0 )
1305 msg_Warn( p_vout, "non-dated video buffer received" );
1309 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1310 p_picture->date - mdate() );
1313 vout_DropPicture( p_vout, p_picture );
1317 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1319 *pi_played_sum += i_tmp_display;
1320 *pi_lost_sum += i_tmp_lost;
1322 if( !b_has_more || b_buffering_first )
1325 vlc_mutex_lock( &p_owner->lock );
1326 if( !p_owner->buffer.p_picture )
1328 vlc_mutex_unlock( &p_owner->lock );
1334 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1336 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1337 input_thread_t *p_input = p_owner->p_input;
1341 int i_displayed = 0;
1343 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1345 vout_thread_t *p_vout = p_owner->p_vout;
1348 /* It prevent freezing VLC in case of broken decoder */
1349 vout_DropPicture( p_vout, p_pic );
1351 block_Release( p_block );
1357 if( p_pic->date < p_owner->i_preroll_end )
1359 vout_DropPicture( p_vout, p_pic );
1363 if( p_owner->i_preroll_end > 0 )
1365 msg_Dbg( p_dec, "End of video preroll" );
1367 vout_Flush( p_vout, 1 );
1369 p_owner->i_preroll_end = -1;
1372 if( p_dec->pf_get_cc &&
1373 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1374 DecoderGetCc( p_dec, p_dec );
1376 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1378 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1380 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1382 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1384 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1387 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1390 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1394 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1397 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1398 vout_thread_t *p_vout = p_owner->p_spu_vout;
1401 if( p_subpic->i_start <= 0 )
1403 msg_Warn( p_dec, "non-dated spu buffer received" );
1404 subpicture_Delete( p_subpic );
1409 vlc_mutex_lock( &p_owner->lock );
1411 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1413 p_subpic->p_next = NULL;
1415 *p_owner->buffer.pp_subpic_next = p_subpic;
1416 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1418 p_owner->buffer.i_count++;
1419 /* XXX it is important to be full after the first one */
1420 if( p_owner->buffer.i_count > 0 )
1422 p_owner->buffer.b_full = true;
1423 vlc_cond_signal( &p_owner->wait );
1429 bool b_has_more = false;
1431 DecoderWaitUnblock( p_dec, &b_reject );
1433 if( p_owner->b_buffering )
1435 vlc_mutex_unlock( &p_owner->lock );
1440 if( p_owner->buffer.p_subpic )
1442 p_subpic = p_owner->buffer.p_subpic;
1444 p_owner->buffer.p_subpic = p_subpic->p_next;
1445 p_owner->buffer.i_count--;
1447 b_has_more = p_owner->buffer.p_subpic != NULL;
1449 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1453 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1454 NULL, NULL, b_telx );
1456 vlc_mutex_unlock( &p_owner->lock );
1459 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1461 subpicture_Delete( p_subpic );
1465 vlc_mutex_lock( &p_owner->lock );
1466 if( !p_owner->buffer.p_subpic )
1468 vlc_mutex_unlock( &p_owner->lock );
1474 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1477 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1479 assert( p_owner->p_clock );
1481 vlc_mutex_lock( &p_owner->lock );
1484 DecoderWaitUnblock( p_dec, &b_reject );
1486 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1487 &p_sout_block->i_rate, NULL, b_telx );
1489 vlc_mutex_unlock( &p_owner->lock );
1491 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1495 static void DecoderFlushBuffering( decoder_t *p_dec )
1497 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1499 vlc_assert_locked( &p_owner->lock );
1501 while( p_owner->buffer.p_picture )
1503 picture_t *p_picture = p_owner->buffer.p_picture;
1505 p_owner->buffer.p_picture = p_picture->p_next;
1506 p_owner->buffer.i_count--;
1508 if( p_owner->p_vout )
1509 vout_DropPicture( p_owner->p_vout, p_picture );
1511 if( !p_owner->buffer.p_picture )
1512 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1514 while( p_owner->buffer.p_audio )
1516 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1518 p_owner->buffer.p_audio = p_audio->p_next;
1519 p_owner->buffer.i_count--;
1521 aout_BufferFree( p_audio );
1523 if( !p_owner->buffer.p_audio )
1524 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1526 while( p_owner->buffer.p_subpic )
1528 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1530 p_owner->buffer.p_subpic = p_subpic->p_next;
1531 p_owner->buffer.i_count--;
1533 subpicture_Delete( p_subpic );
1535 if( !p_owner->buffer.p_subpic )
1536 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1540 /* This function process a block for sout
1542 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1544 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1545 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1546 block_t *p_sout_block;
1548 while( ( p_sout_block =
1549 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1551 if( !p_owner->p_sout_input )
1553 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1555 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1556 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1557 if( p_dec->fmt_in.psz_language )
1559 if( p_owner->sout.psz_language )
1560 free( p_owner->sout.psz_language );
1561 p_owner->sout.psz_language =
1562 strdup( p_dec->fmt_in.psz_language );
1565 p_owner->p_sout_input =
1566 sout_InputNew( p_owner->p_sout,
1569 if( p_owner->p_sout_input == NULL )
1571 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1572 (char *)&p_owner->sout.i_codec );
1573 p_dec->b_error = true;
1575 while( p_sout_block )
1577 block_t *p_next = p_sout_block->p_next;
1578 block_Release( p_sout_block );
1579 p_sout_block = p_next;
1585 while( p_sout_block )
1587 block_t *p_next = p_sout_block->p_next;
1589 p_sout_block->p_next = NULL;
1591 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1593 p_sout_block = p_next;
1596 /* For now it's enough, as only sout impact on this flag */
1597 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1598 p_owner->p_input->p->b_out_pace_control )
1600 msg_Dbg( p_dec, "switching to sync mode" );
1601 p_owner->p_input->p->b_out_pace_control = false;
1603 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1604 !p_owner->p_input->p->b_out_pace_control )
1606 msg_Dbg( p_dec, "switching to async mode" );
1607 p_owner->p_input->p->b_out_pace_control = true;
1612 /* This function process a video block
1614 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1616 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1618 if( p_owner->p_packetizer )
1620 block_t *p_packetized_block;
1621 decoder_t *p_packetizer = p_owner->p_packetizer;
1623 while( (p_packetized_block =
1624 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1626 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1628 es_format_Clean( &p_dec->fmt_in );
1629 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1631 if( p_packetizer->pf_get_cc )
1632 DecoderGetCc( p_dec, p_packetizer );
1634 while( p_packetized_block )
1636 block_t *p_next = p_packetized_block->p_next;
1637 p_packetized_block->p_next = NULL;
1639 DecoderDecodeVideo( p_dec, p_packetized_block );
1641 p_packetized_block = p_next;
1647 DecoderDecodeVideo( p_dec, p_block );
1650 if( b_flush && p_owner->p_vout )
1651 vout_Flush( p_owner->p_vout, 1 );
1654 /* This function process a audio block
1656 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1658 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1660 if( p_owner->p_packetizer )
1662 block_t *p_packetized_block;
1663 decoder_t *p_packetizer = p_owner->p_packetizer;
1665 while( (p_packetized_block =
1666 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1668 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1670 es_format_Clean( &p_dec->fmt_in );
1671 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1674 while( p_packetized_block )
1676 block_t *p_next = p_packetized_block->p_next;
1677 p_packetized_block->p_next = NULL;
1679 DecoderDecodeAudio( p_dec, p_packetized_block );
1681 p_packetized_block = p_next;
1687 DecoderDecodeAudio( p_dec, p_block );
1690 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1691 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1694 /* This function process a subtitle block
1696 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1698 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1699 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1701 input_thread_t *p_input = p_owner->p_input;
1702 vout_thread_t *p_vout;
1703 subpicture_t *p_spu;
1705 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1707 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1708 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1709 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1711 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1712 if( p_vout && p_owner->p_spu_vout == p_vout )
1714 /* Preroll does not work very well with subtitle */
1715 if( p_spu->i_start > 0 &&
1716 p_spu->i_start < p_owner->i_preroll_end &&
1717 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1719 subpicture_Delete( p_spu );
1723 DecoderPlaySpu( p_dec, p_spu, b_telx );
1728 subpicture_Delete( p_spu );
1731 vlc_object_release( p_vout );
1734 if( b_flush && p_owner->p_spu_vout )
1736 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1738 if( p_vout && p_owner->p_spu_vout == p_vout )
1739 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1740 p_owner->i_spu_channel );
1743 vlc_object_release( p_vout );
1750 * \param p_dec the decoder object
1751 * \param p_block the block to decode
1752 * \return VLC_SUCCESS or an error code
1754 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1756 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1757 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1759 if( p_block && p_block->i_buffer <= 0 )
1761 assert( !b_flush_request );
1762 block_Release( p_block );
1766 int canc = vlc_savecancel ();
1768 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1771 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1773 DecoderProcessSout( p_dec, p_block );
1778 bool b_flush = false;
1782 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1783 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1785 b_flush = !b_flushing && b_flush_request;
1787 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1790 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1792 DecoderProcessAudio( p_dec, p_block, b_flush );
1794 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1796 DecoderProcessVideo( p_dec, p_block, b_flush );
1798 else if( p_dec->fmt_in.i_cat == SPU_ES )
1800 DecoderProcessSpu( p_dec, p_block, b_flush );
1804 msg_Err( p_dec, "unknown ES format" );
1805 p_dec->b_error = true;
1810 if( b_flush_request )
1812 vlc_mutex_lock( &p_owner->lock );
1813 DecoderFlushBuffering( p_dec );
1814 vlc_mutex_unlock( &p_owner->lock );
1816 DecoderSignalFlushed( p_dec );
1818 vlc_restorecancel(canc);
1820 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1824 * Destroys a decoder object
1826 * \param p_dec the decoder object
1829 static void DeleteDecoder( decoder_t * p_dec )
1831 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1833 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1834 (char*)&p_dec->fmt_in.i_codec,
1835 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1837 /* Free all packets still in the decoder fifo. */
1838 block_FifoEmpty( p_owner->p_fifo );
1839 block_FifoRelease( p_owner->p_fifo );
1842 vlc_mutex_lock( &p_owner->lock );
1843 DecoderFlushBuffering( p_dec );
1844 vlc_mutex_unlock( &p_owner->lock );
1847 if( p_owner->p_aout_input )
1848 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1849 if( p_owner->p_aout )
1851 vlc_object_release( p_owner->p_aout );
1852 p_owner->p_aout = NULL;
1854 if( p_owner->p_vout )
1856 /* Hack to make sure all the the pictures are freed by the decoder */
1857 vout_FixLeaks( p_owner->p_vout, true );
1859 /* We are about to die. Reattach video output to p_vlc. */
1860 vout_Request( p_dec, p_owner->p_vout, NULL );
1861 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1865 if( p_owner->p_sout_input )
1867 sout_InputDelete( p_owner->p_sout_input );
1868 es_format_Clean( &p_owner->sout );
1872 if( p_dec->fmt_in.i_cat == SPU_ES )
1874 vout_thread_t *p_vout;
1876 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1877 if( p_vout && p_owner->p_spu_vout == p_vout )
1879 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1880 p_owner->i_spu_channel );
1881 vlc_object_release( p_vout );
1885 es_format_Clean( &p_dec->fmt_in );
1886 es_format_Clean( &p_dec->fmt_out );
1888 if( p_owner->p_packetizer )
1890 module_unneed( p_owner->p_packetizer,
1891 p_owner->p_packetizer->p_module );
1892 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1893 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1894 vlc_object_detach( p_owner->p_packetizer );
1895 vlc_object_release( p_owner->p_packetizer );
1898 vlc_cond_destroy( &p_owner->wait );
1899 vlc_mutex_destroy( &p_owner->lock );
1901 vlc_object_detach( p_dec );
1906 /*****************************************************************************
1907 * Buffers allocation callbacks for the decoders
1908 *****************************************************************************/
1909 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1911 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1912 aout_buffer_t *p_buffer;
1914 if( p_owner->p_aout_input != NULL &&
1915 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1916 p_dec->fmt_out.audio.i_original_channels !=
1917 p_owner->audio.i_original_channels ||
1918 p_dec->fmt_out.audio.i_bytes_per_frame !=
1919 p_owner->audio.i_bytes_per_frame ) )
1921 aout_input_t *p_aout_input = p_owner->p_aout_input;
1923 /* Parameters changed, restart the aout */
1924 vlc_mutex_lock( &p_owner->lock );
1926 DecoderFlushBuffering( p_dec );
1928 p_owner->p_aout_input = NULL;
1929 aout_DecDelete( p_owner->p_aout, p_aout_input );
1931 vlc_mutex_unlock( &p_owner->lock );
1934 if( p_owner->p_aout_input == NULL )
1936 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1937 audio_sample_format_t format;
1938 aout_input_t *p_aout_input;
1939 aout_instance_t *p_aout;
1941 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1942 p_owner->audio = p_dec->fmt_out.audio;
1944 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1945 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1946 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1948 if ( i_force_dolby == 1 )
1950 format.i_original_channels = format.i_original_channels |
1951 AOUT_CHAN_DOLBYSTEREO;
1953 else /* i_force_dolby == 2 */
1955 format.i_original_channels = format.i_original_channels &
1956 ~AOUT_CHAN_DOLBYSTEREO;
1960 p_aout = p_owner->p_aout;
1961 p_aout_input = aout_DecNew( p_dec, &p_aout,
1962 &format, &p_dec->fmt_out.audio_replay_gain );
1964 vlc_mutex_lock( &p_owner->lock );
1965 p_owner->p_aout = p_aout;
1966 p_owner->p_aout_input = p_aout_input;
1967 vlc_mutex_unlock( &p_owner->lock );
1969 if( p_owner->p_aout_input == NULL )
1971 msg_Err( p_dec, "failed to create audio output" );
1972 p_dec->b_error = true;
1975 p_dec->fmt_out.audio.i_bytes_per_frame =
1976 p_owner->audio.i_bytes_per_frame;
1979 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1984 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1986 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1988 aout_DecDeleteBuffer( p_owner->p_aout,
1989 p_owner->p_aout_input, p_buffer );
1993 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1995 static picture_t *vout_new_buffer( decoder_t *p_dec )
1997 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1999 if( p_owner->p_vout == NULL ||
2000 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2001 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2002 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2003 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2005 vout_thread_t *p_vout;
2007 if( !p_dec->fmt_out.video.i_width ||
2008 !p_dec->fmt_out.video.i_height )
2010 /* Can't create a new vout without display size */
2014 if( !p_dec->fmt_out.video.i_visible_width ||
2015 !p_dec->fmt_out.video.i_visible_height )
2017 if( p_dec->fmt_in.video.i_visible_width &&
2018 p_dec->fmt_in.video.i_visible_height )
2020 p_dec->fmt_out.video.i_visible_width =
2021 p_dec->fmt_in.video.i_visible_width;
2022 p_dec->fmt_out.video.i_visible_height =
2023 p_dec->fmt_in.video.i_visible_height;
2027 p_dec->fmt_out.video.i_visible_width =
2028 p_dec->fmt_out.video.i_width;
2029 p_dec->fmt_out.video.i_visible_height =
2030 p_dec->fmt_out.video.i_height;
2034 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2035 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2037 p_dec->fmt_out.video.i_visible_height = 1080;
2038 p_dec->fmt_out.video.i_sar_num *= 135;
2039 p_dec->fmt_out.video.i_sar_den *= 136;
2040 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2043 if( !p_dec->fmt_out.video.i_sar_num ||
2044 !p_dec->fmt_out.video.i_sar_den )
2046 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2047 p_dec->fmt_out.video.i_visible_height;
2049 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2050 p_dec->fmt_out.video.i_visible_width;
2053 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2054 &p_dec->fmt_out.video.i_sar_den,
2055 p_dec->fmt_out.video.i_sar_num,
2056 p_dec->fmt_out.video.i_sar_den, 50000 );
2058 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2059 p_owner->video = p_dec->fmt_out.video;
2061 vlc_mutex_lock( &p_owner->lock );
2063 DecoderFlushBuffering( p_dec );
2065 p_vout = p_owner->p_vout;
2066 p_owner->p_vout = NULL;
2067 vlc_mutex_unlock( &p_owner->lock );
2069 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2071 vlc_mutex_lock( &p_owner->lock );
2072 p_owner->p_vout = p_vout;
2073 vlc_mutex_unlock( &p_owner->lock );
2075 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2076 if( p_vout == NULL )
2078 msg_Err( p_dec, "failed to create video output" );
2079 p_dec->b_error = true;
2083 if( p_owner->video.i_rmask )
2084 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2085 if( p_owner->video.i_gmask )
2086 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2087 if( p_owner->video.i_bmask )
2088 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2091 /* Get a new picture
2095 picture_t *p_picture;
2097 if( p_dec->b_die || p_dec->b_error )
2100 /* The video filter chain required that there is always 1 free buffer
2101 * that it will use as temporary one. It will release the temporary
2102 * buffer once its work is done, so this check is safe even if we don't
2103 * lock around both count() and create().
2105 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2107 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2112 if( DecoderIsFlushing( p_dec ) )
2116 DecoderSignalBuffering( p_dec, true );
2118 /* Check the decoder doesn't leak pictures */
2119 vout_FixLeaks( p_owner->p_vout, false );
2121 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2122 msleep( VOUT_OUTMEM_SLEEP );
2126 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2128 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2131 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2133 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2136 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2138 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2141 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2143 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2144 vout_thread_t *p_vout = NULL;
2145 subpicture_t *p_subpic;
2146 int i_attempts = 30;
2148 while( i_attempts-- )
2150 if( p_dec->b_die || p_dec->b_error )
2153 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2157 msleep( VOUT_DISPLAY_DELAY );
2162 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2166 if( p_owner->p_spu_vout != p_vout )
2168 vlc_mutex_lock( &p_owner->lock );
2170 DecoderFlushBuffering( p_dec );
2172 vlc_mutex_unlock( &p_owner->lock );
2174 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2175 &p_owner->i_spu_channel );
2176 p_owner->i_spu_order = 0;
2177 p_owner->p_spu_vout = p_vout;
2180 p_subpic = subpicture_New();
2183 p_subpic->i_channel = p_owner->i_spu_channel;
2184 p_subpic->i_order = p_owner->i_spu_order++;
2185 p_subpic->b_subtitle = true;
2188 vlc_object_release( p_vout );
2193 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2195 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2196 vout_thread_t *p_vout = NULL;
2198 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2199 if( !p_vout || p_owner->p_spu_vout != p_vout )
2202 vlc_object_release( p_vout );
2203 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2207 subpicture_Delete( p_subpic );
2209 vlc_object_release( p_vout );