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_internal.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 (void)b_force_decoder;
226 /* If we are in sout mode, search for packetizer module */
229 /* Create the decoder configuration structure */
230 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
233 msg_Err( p_input, "could not create packetizer" );
234 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
235 _("VLC could not open the packetizer module.") );
242 /* Create the decoder configuration structure */
243 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
246 msg_Err( p_input, "could not create decoder" );
247 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
248 _("VLC could not open the decoder module.") );
253 if( !p_dec->p_module )
255 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
257 DeleteDecoder( p_dec );
258 vlc_object_release( p_dec );
262 p_dec->p_owner->p_clock = p_clock;
264 if( fmt->i_cat == AUDIO_ES )
265 i_priority = VLC_THREAD_PRIORITY_AUDIO;
267 i_priority = VLC_THREAD_PRIORITY_VIDEO;
269 /* Spawn the decoder thread */
270 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
271 i_priority, false ) )
273 msg_Err( p_dec, "cannot spawn decoder thread" );
274 module_unneed( p_dec, p_dec->p_module );
275 DeleteDecoder( p_dec );
276 vlc_object_release( p_dec );
284 * Kills a decoder thread and waits until it's finished
286 * \param p_input the input thread
287 * \param p_es the es descriptor
290 void input_DecoderDelete( decoder_t *p_dec )
292 decoder_owner_sys_t *p_owner = p_dec->p_owner;
294 vlc_object_kill( p_dec );
296 /* Make sure we aren't paused anymore */
297 vlc_mutex_lock( &p_owner->lock );
298 if( p_owner->b_paused || p_owner->b_buffering )
300 p_owner->b_paused = false;
301 p_owner->b_buffering = false;
302 vlc_cond_signal( &p_owner->wait );
304 vlc_mutex_unlock( &p_owner->lock );
306 /* Make sure the thread leaves the function */
307 block_FifoWake( p_owner->p_fifo );
309 vlc_thread_join( p_dec );
311 /* Don't module_unneed() here because of the dll loader that wants
312 * close() in the same thread than open()/decode() */
315 if( p_dec->p_owner->cc.b_supported )
318 for( i = 0; i < 4; i++ )
319 input_DecoderSetCcState( p_dec, false, i );
322 /* Delete decoder configuration */
323 DeleteDecoder( p_dec );
325 /* Delete the decoder */
326 vlc_object_release( p_dec );
330 * Put a block_t in the decoder's fifo.
332 * \param p_dec the decoder object
333 * \param p_block the data block
335 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
337 decoder_owner_sys_t *p_owner = p_dec->p_owner;
339 if( p_owner->p_input->p->b_out_pace_control )
342 while( vlc_object_alive( p_dec ) && !p_dec->b_error &&
343 block_FifoCount( p_owner->p_fifo ) > 10 )
348 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
350 /* FIXME: ideally we would check the time amount of data
351 * in the fifo instead of its size. */
352 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
353 "consumed quickly enough), resetting fifo!" );
354 block_FifoEmpty( p_owner->p_fifo );
357 block_FifoPut( p_owner->p_fifo, p_block );
360 bool input_DecoderIsEmpty( decoder_t * p_dec )
362 assert( !p_dec->p_owner->b_buffering );
364 /* FIXME that's not really true */
365 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
368 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
370 decoder_owner_sys_t *p_owner = p_dec->p_owner;
373 vlc_mutex_lock( &p_owner->lock );
374 for( i = 0; i < 4; i++ )
375 pb_present[i] = p_owner->cc.pb_present[i];
376 vlc_mutex_unlock( &p_owner->lock );
378 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
380 decoder_owner_sys_t *p_owner = p_dec->p_owner;
382 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
384 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
389 static const vlc_fourcc_t fcc[4] = {
390 VLC_FOURCC('c', 'c', '1', ' '),
391 VLC_FOURCC('c', 'c', '2', ' '),
392 VLC_FOURCC('c', 'c', '3', ' '),
393 VLC_FOURCC('c', 'c', '4', ' '),
398 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
399 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
402 msg_Err( p_dec, "could not create decoder" );
403 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
404 _("VLC could not open the decoder module.") );
407 else if( !p_cc->p_module )
409 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
410 DeleteDecoder( p_cc );
411 vlc_object_release( p_cc );
414 p_cc->p_owner->p_clock = p_owner->p_clock;
416 vlc_mutex_lock( &p_owner->lock );
417 p_owner->cc.pp_decoder[i_channel] = p_cc;
418 vlc_mutex_unlock( &p_owner->lock );
424 vlc_mutex_lock( &p_owner->lock );
425 p_cc = p_owner->cc.pp_decoder[i_channel];
426 p_owner->cc.pp_decoder[i_channel] = NULL;
427 vlc_mutex_unlock( &p_owner->lock );
431 vlc_object_kill( p_cc );
432 module_unneed( p_cc, p_cc->p_module );
433 DeleteDecoder( p_cc );
434 vlc_object_release( p_cc );
439 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
441 decoder_owner_sys_t *p_owner = p_dec->p_owner;
444 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
447 vlc_mutex_lock( &p_owner->lock );
448 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
449 vlc_mutex_unlock( &p_owner->lock );
453 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
455 decoder_owner_sys_t *p_owner = p_dec->p_owner;
457 vlc_mutex_lock( &p_owner->lock );
459 assert( !p_owner->b_paused || !b_paused );
461 p_owner->b_paused = b_paused;
462 p_owner->pause.i_date = i_date;
463 vlc_cond_signal( &p_owner->wait );
465 DecoderOutputChangePause( p_dec, b_paused, i_date );
467 vlc_mutex_unlock( &p_owner->lock );
470 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
472 decoder_owner_sys_t *p_owner = p_dec->p_owner;
474 vlc_mutex_lock( &p_owner->lock );
475 p_owner->i_ts_delay = i_delay;
476 vlc_mutex_unlock( &p_owner->lock );
479 void input_DecoderStartBuffering( decoder_t *p_dec )
481 decoder_owner_sys_t *p_owner = p_dec->p_owner;
483 vlc_mutex_lock( &p_owner->lock );
485 DecoderFlush( p_dec );
487 p_owner->buffer.b_first = true;
488 p_owner->buffer.b_full = false;
489 p_owner->buffer.i_count = 0;
491 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
493 p_owner->buffer.p_picture = NULL;
494 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
496 p_owner->buffer.p_subpic = NULL;
497 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
499 p_owner->buffer.p_audio = NULL;
500 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
502 p_owner->b_buffering = true;
504 vlc_cond_signal( &p_owner->wait );
506 vlc_mutex_unlock( &p_owner->lock );
509 void input_DecoderStopBuffering( decoder_t *p_dec )
511 decoder_owner_sys_t *p_owner = p_dec->p_owner;
513 vlc_mutex_lock( &p_owner->lock );
515 p_owner->b_buffering = false;
517 vlc_cond_signal( &p_owner->wait );
519 vlc_mutex_unlock( &p_owner->lock );
522 void input_DecoderWaitBuffering( decoder_t *p_dec )
524 decoder_owner_sys_t *p_owner = p_dec->p_owner;
526 vlc_mutex_lock( &p_owner->lock );
528 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
530 block_FifoWake( p_owner->p_fifo );
531 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
534 vlc_mutex_unlock( &p_owner->lock );
537 /*****************************************************************************
539 *****************************************************************************/
542 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
544 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
545 "VLC probably does not support this sound or video format.",
547 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
548 _("VLC does not support the audio or video format \"%4.4s\". "
549 "Unfortunately there is no way for you to fix this."), (char*)&codec );
554 * Create a decoder object
556 * \param p_input the input thread
557 * \param p_es the es descriptor
558 * \param i_object_type Object type as define in include/vlc_objects.h
559 * \return the decoder object
561 static decoder_t * CreateDecoder( input_thread_t *p_input,
562 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
565 decoder_owner_sys_t *p_owner;
568 p_dec = vlc_object_create( p_input, i_object_type );
572 p_dec->pf_decode_audio = NULL;
573 p_dec->pf_decode_video = NULL;
574 p_dec->pf_decode_sub = NULL;
575 p_dec->pf_get_cc = NULL;
576 p_dec->pf_packetize = NULL;
578 /* Initialize the decoder fifo */
579 p_dec->p_module = NULL;
581 memset( &null_es_format, 0, sizeof(es_format_t) );
582 es_format_Copy( &p_dec->fmt_in, fmt );
583 es_format_Copy( &p_dec->fmt_out, &null_es_format );
585 /* Allocate our private structure for the decoder */
586 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
587 if( p_dec->p_owner == NULL )
589 vlc_object_release( p_dec );
592 p_dec->p_owner->i_preroll_end = -1;
593 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
594 p_dec->p_owner->p_input = p_input;
595 p_dec->p_owner->p_aout = NULL;
596 p_dec->p_owner->p_aout_input = NULL;
597 p_dec->p_owner->p_vout = NULL;
598 p_dec->p_owner->p_spu_vout = NULL;
599 p_dec->p_owner->i_spu_channel = 0;
600 p_dec->p_owner->i_spu_order = 0;
601 p_dec->p_owner->p_sout = p_sout;
602 p_dec->p_owner->p_sout_input = NULL;
603 p_dec->p_owner->p_packetizer = NULL;
606 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
608 free( p_dec->p_owner );
609 vlc_object_release( p_dec );
613 /* Set buffers allocation callbacks for the decoders */
614 p_dec->pf_aout_buffer_new = aout_new_buffer;
615 p_dec->pf_aout_buffer_del = aout_del_buffer;
616 p_dec->pf_vout_buffer_new = vout_new_buffer;
617 p_dec->pf_vout_buffer_del = vout_del_buffer;
618 p_dec->pf_picture_link = vout_link_picture;
619 p_dec->pf_picture_unlink = vout_unlink_picture;
620 p_dec->pf_spu_buffer_new = spu_new_buffer;
621 p_dec->pf_spu_buffer_del = spu_del_buffer;
623 vlc_object_attach( p_dec, p_input );
625 /* Find a suitable decoder/packetizer module */
626 if( i_object_type == VLC_OBJECT_DECODER )
627 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
629 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
631 /* Check if decoder requires already packetized data */
632 if( i_object_type == VLC_OBJECT_DECODER &&
633 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
635 p_dec->p_owner->p_packetizer =
636 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
637 if( p_dec->p_owner->p_packetizer )
639 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
642 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
645 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
647 p_dec->p_owner->p_packetizer->p_module =
648 module_need( p_dec->p_owner->p_packetizer,
649 "packetizer", "$packetizer", 0 );
651 if( !p_dec->p_owner->p_packetizer->p_module )
653 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
654 vlc_object_detach( p_dec->p_owner->p_packetizer );
655 vlc_object_release( p_dec->p_owner->p_packetizer );
660 /* Copy ourself the input replay gain */
661 if( fmt->i_cat == AUDIO_ES )
663 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
665 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
667 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
668 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
670 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
672 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
673 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
679 vlc_mutex_init( &p_owner->lock );
680 vlc_cond_init( &p_owner->wait );
682 p_owner->b_paused = false;
683 p_owner->pause.i_date = 0;
685 p_owner->b_buffering = false;
686 p_owner->buffer.b_first = true;
687 p_owner->buffer.b_full = false;
688 p_owner->buffer.i_count = 0;
689 p_owner->buffer.p_picture = NULL;
690 p_owner->buffer.p_subpic = NULL;
691 p_owner->buffer.p_audio = NULL;
693 p_owner->b_flushing = false;
696 p_owner->cc.b_supported = false;
697 if( i_object_type == VLC_OBJECT_DECODER )
699 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
700 p_owner->cc.b_supported = true;
701 if( p_dec->pf_get_cc )
702 p_owner->cc.b_supported = true;
705 for( i = 0; i < 4; i++ )
707 p_owner->cc.pb_present[i] = false;
708 p_owner->cc.pp_decoder[i] = NULL;
710 p_owner->i_ts_delay = 0;
715 * The decoding main loop
717 * \param p_dec the decoder
719 static void *DecoderThread( vlc_object_t *p_this )
721 decoder_t *p_dec = (decoder_t *)p_this;
722 decoder_owner_sys_t *p_owner = p_dec->p_owner;
724 int canc = vlc_savecancel();
726 /* The decoder's main loop */
727 while( vlc_object_alive( p_dec ) && !p_dec->b_error )
729 block_t *p_block = block_FifoGet( p_owner->p_fifo );
731 DecoderSignalBuffering( p_dec, p_block == NULL );
733 if( p_block && DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
737 while( vlc_object_alive( p_dec ) )
739 block_t *p_block = block_FifoGet( p_owner->p_fifo );
741 DecoderSignalBuffering( p_dec, p_block == NULL );
743 /* Trash all received PES packets */
745 block_Release( p_block );
747 DecoderSignalBuffering( p_dec, true );
749 /* We do it here because of the dll loader that wants close() in the
750 * same thread than open()/decode() */
751 module_unneed( p_dec, p_dec->p_module );
752 vlc_restorecancel( canc );
756 static void DecoderFlush( decoder_t *p_dec )
758 decoder_owner_sys_t *p_owner = p_dec->p_owner;
761 vlc_assert_locked( &p_owner->lock );
764 block_FifoEmpty( p_owner->p_fifo );
766 /* Monitor for flush end */
767 p_owner->b_flushing = true;
768 vlc_cond_signal( &p_owner->wait );
770 /* Send a special block */
771 p_null = block_New( p_dec, 128 );
774 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
775 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
776 if( !p_dec->fmt_in.b_packetized )
777 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
778 memset( p_null->p_buffer, 0, p_null->i_buffer );
780 input_DecoderDecode( p_dec, p_null );
783 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
784 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
787 static void DecoderSignalFlushed( decoder_t *p_dec )
789 decoder_owner_sys_t *p_owner = p_dec->p_owner;
791 vlc_mutex_lock( &p_owner->lock );
793 if( p_owner->b_flushing )
795 p_owner->b_flushing = false;
796 vlc_cond_signal( &p_owner->wait );
799 vlc_mutex_unlock( &p_owner->lock );
802 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
804 decoder_owner_sys_t *p_owner = p_dec->p_owner;
806 vlc_mutex_lock( &p_owner->lock );
808 if( p_owner->b_buffering )
811 p_owner->buffer.b_full = true;
812 vlc_cond_signal( &p_owner->wait );
815 vlc_mutex_unlock( &p_owner->lock );
818 static bool DecoderIsFlushing( decoder_t *p_dec )
820 decoder_owner_sys_t *p_owner = p_dec->p_owner;
823 vlc_mutex_lock( &p_owner->lock );
825 b_flushing = p_owner->b_flushing;
827 vlc_mutex_unlock( &p_owner->lock );
832 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
834 decoder_owner_sys_t *p_owner = p_dec->p_owner;
836 vlc_assert_locked( &p_owner->lock );
838 while( !p_owner->b_flushing )
840 if( p_owner->b_paused && p_owner->b_buffering && !p_owner->buffer.b_full )
843 if( !p_owner->b_paused && ( !p_owner->b_buffering || !p_owner->buffer.b_full ) )
846 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
850 *pb_reject = p_owner->b_flushing;
853 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
855 decoder_owner_sys_t *p_owner = p_dec->p_owner;
857 vlc_assert_locked( &p_owner->lock );
859 /* XXX only audio and video output have to be paused.
860 * - for sout it is useless
861 * - for subs, it is done by the vout
863 if( p_dec->fmt_in.i_cat == AUDIO_ES )
865 if( p_owner->p_aout && p_owner->p_aout_input )
866 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
869 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
871 if( p_owner->p_vout )
872 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
875 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
877 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
878 *pi_preroll = INT64_MAX;
879 else if( p->i_pts > 0 )
880 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
881 else if( p->i_dts > 0 )
882 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
885 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
887 mtime_t current_date = mdate();
889 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
890 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
892 /* ETSI EN 300 472 Annex A : do not take into account the PTS
893 * for teletext streams. */
894 return current_date + 400000 + i_ts_delay;
899 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
900 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
902 decoder_owner_sys_t *p_owner = p_dec->p_owner;
903 input_clock_t *p_clock = p_owner->p_clock;
906 vlc_assert_locked( &p_owner->lock );
908 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
909 const mtime_t i_es_delay = p_owner->i_ts_delay;
913 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
916 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
917 *pi_ts0 + i_es_delay );
918 if( pi_ts1 && *pi_ts1 > 0 )
919 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
920 *pi_ts1 + i_es_delay );
922 /* Do not create ephemere data because of rounding errors */
923 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
927 i_rate = input_clock_GetRate( p_clock );
930 *pi_duration = ( *pi_duration * i_rate +
931 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
938 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
939 if( pi_ts1 && *pi_ts1 <= 0 )
945 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
946 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
950 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
951 int *pi_played_sum, int *pi_lost_sum )
953 decoder_owner_sys_t *p_owner = p_dec->p_owner;
954 aout_instance_t *p_aout = p_owner->p_aout;
955 aout_input_t *p_aout_input = p_owner->p_aout_input;
958 if( p_audio->start_date <= 0 )
960 msg_Warn( p_dec, "non-dated audio buffer received" );
962 aout_BufferFree( p_audio );
967 vlc_mutex_lock( &p_owner->lock );
969 if( p_owner->b_buffering || p_owner->buffer.p_audio )
971 p_audio->p_next = NULL;
973 *p_owner->buffer.pp_audio_next = p_audio;
974 p_owner->buffer.pp_audio_next = &p_audio->p_next;
976 p_owner->buffer.i_count++;
977 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
978 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
980 p_owner->buffer.b_full = true;
981 vlc_cond_signal( &p_owner->wait );
987 bool b_has_more = false;
989 DecoderWaitUnblock( p_dec, &b_reject );
991 if( p_owner->b_buffering )
993 vlc_mutex_unlock( &p_owner->lock );
998 if( p_owner->buffer.p_audio )
1000 p_audio = p_owner->buffer.p_audio;
1002 p_owner->buffer.p_audio = p_audio->p_next;
1003 p_owner->buffer.i_count--;
1005 b_has_more = p_owner->buffer.p_audio != NULL;
1007 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1011 int i_rate = INPUT_RATE_DEFAULT;
1014 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1015 &i_rate, &i_delay, false );
1017 vlc_mutex_unlock( &p_owner->lock );
1020 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1022 if( !p_aout || !p_aout_input ||
1023 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1024 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1025 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1030 /* Wait if we are too early
1031 * FIXME that's plain ugly to do it here */
1032 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1034 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1035 *pi_played_sum += 1;
1036 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1040 if( p_audio->start_date <= 0 )
1042 msg_Warn( p_dec, "non-dated audio buffer received" );
1044 else if( p_audio->start_date > i_max_date )
1046 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1047 p_audio->start_date - mdate() );
1050 aout_BufferFree( p_audio );
1056 vlc_mutex_lock( &p_owner->lock );
1057 if( !p_owner->buffer.p_audio )
1059 vlc_mutex_unlock( &p_owner->lock );
1065 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1067 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1068 input_thread_t *p_input = p_owner->p_input;
1069 aout_buffer_t *p_aout_buf;
1074 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1076 aout_instance_t *p_aout = p_owner->p_aout;
1077 aout_input_t *p_aout_input = p_owner->p_aout_input;
1083 /* It prevent freezing VLC in case of broken decoder */
1084 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1086 block_Release( p_block );
1091 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1093 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1097 if( p_owner->i_preroll_end > 0 )
1099 msg_Dbg( p_dec, "End of audio preroll" );
1100 if( p_owner->p_aout && p_owner->p_aout_input )
1101 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1103 p_owner->i_preroll_end = -1;
1106 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1109 /* Update ugly stat */
1110 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1112 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1114 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1116 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1118 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1121 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1124 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1126 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1132 assert( p_dec_cc->pf_get_cc != NULL );
1134 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1135 if( !p_owner->cc.b_supported )
1138 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1142 vlc_mutex_lock( &p_owner->lock );
1143 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1145 p_owner->cc.pb_present[i] |= pb_present[i];
1146 if( p_owner->cc.pp_decoder[i] )
1150 for( i = 0; i < 4; i++ )
1152 if( !p_owner->cc.pp_decoder[i] )
1155 if( i_cc_decoder > 1 )
1156 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1158 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1161 vlc_mutex_unlock( &p_owner->lock );
1164 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1165 int *pi_played_sum, int *pi_lost_sum )
1167 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1168 vout_thread_t *p_vout = p_owner->p_vout;
1170 if( p_picture->date <= 0 )
1172 msg_Warn( p_vout, "non-dated video buffer received" );
1174 vout_DropPicture( p_vout, p_picture );
1179 vlc_mutex_lock( &p_owner->lock );
1181 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1183 p_picture->p_next = NULL;
1185 *p_owner->buffer.pp_picture_next = p_picture;
1186 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1188 p_owner->buffer.i_count++;
1189 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1190 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1192 p_owner->buffer.b_full = true;
1193 vlc_cond_signal( &p_owner->wait );
1199 bool b_has_more = false;
1202 DecoderWaitUnblock( p_dec, &b_reject );
1204 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1206 vlc_mutex_unlock( &p_owner->lock );
1209 bool b_buffering_first = p_owner->b_buffering;
1212 if( p_owner->buffer.p_picture )
1214 p_picture = p_owner->buffer.p_picture;
1216 p_owner->buffer.p_picture = p_picture->p_next;
1217 p_owner->buffer.i_count--;
1219 b_has_more = p_owner->buffer.p_picture != NULL;
1221 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1225 int i_rate = INPUT_RATE_DEFAULT;
1228 if( b_buffering_first )
1230 assert( p_owner->buffer.b_first );
1231 assert( !p_owner->buffer.i_count );
1232 msg_Dbg( p_dec, "Received first picture" );
1233 p_owner->buffer.b_first = false;
1234 p_picture->date = mdate();
1235 p_picture->b_force = true;
1237 if( p_owner->p_clock )
1238 i_rate = input_clock_GetRate( p_owner->p_clock );
1242 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1243 &i_rate, &i_delay, false );
1246 vlc_mutex_unlock( &p_owner->lock );
1249 const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1251 if( p_picture->date <= 0 || p_picture->date >= i_max_date )
1256 if( i_rate != p_owner->i_last_rate )
1258 /* Be sure to not display old picture after our own */
1259 vout_Flush( p_vout, p_picture->date );
1260 p_owner->i_last_rate = i_rate;
1263 vout_DisplayPicture( p_vout, p_picture );
1267 if( p_picture->date <= 0 )
1269 msg_Warn( p_vout, "non-dated video buffer received" );
1273 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1274 p_picture->date - mdate() );
1277 vout_DropPicture( p_vout, p_picture );
1281 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1283 *pi_played_sum += i_tmp_display;
1284 *pi_lost_sum += i_tmp_lost;
1286 if( !b_has_more || b_buffering_first )
1289 vlc_mutex_lock( &p_owner->lock );
1290 if( !p_owner->buffer.p_picture )
1292 vlc_mutex_unlock( &p_owner->lock );
1298 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1300 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1301 input_thread_t *p_input = p_owner->p_input;
1305 int i_displayed = 0;
1307 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1309 vout_thread_t *p_vout = p_owner->p_vout;
1312 /* It prevent freezing VLC in case of broken decoder */
1313 vout_DropPicture( p_vout, p_pic );
1315 block_Release( p_block );
1321 if( p_pic->date < p_owner->i_preroll_end )
1323 vout_DropPicture( p_vout, p_pic );
1327 if( p_owner->i_preroll_end > 0 )
1329 msg_Dbg( p_dec, "End of video preroll" );
1331 vout_Flush( p_vout, 1 );
1333 p_owner->i_preroll_end = -1;
1336 if( p_dec->pf_get_cc &&
1337 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1338 DecoderGetCc( p_dec, p_dec );
1340 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1342 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1344 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1346 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1348 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1351 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1354 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1358 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1361 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1362 vout_thread_t *p_vout = p_owner->p_spu_vout;
1365 if( p_subpic->i_start <= 0 )
1367 msg_Warn( p_dec, "non-dated spu buffer received" );
1368 subpicture_Delete( p_subpic );
1373 vlc_mutex_lock( &p_owner->lock );
1375 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1377 p_subpic->p_next = NULL;
1379 *p_owner->buffer.pp_subpic_next = p_subpic;
1380 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1382 p_owner->buffer.i_count++;
1383 /* XXX it is important to be full after the first one */
1384 if( p_owner->buffer.i_count > 0 )
1386 p_owner->buffer.b_full = true;
1387 vlc_cond_signal( &p_owner->wait );
1393 bool b_has_more = false;
1395 DecoderWaitUnblock( p_dec, &b_reject );
1397 if( p_owner->b_buffering )
1399 vlc_mutex_unlock( &p_owner->lock );
1404 if( p_owner->buffer.p_subpic )
1406 p_subpic = p_owner->buffer.p_subpic;
1408 p_owner->buffer.p_subpic = p_subpic->p_next;
1409 p_owner->buffer.i_count--;
1411 b_has_more = p_owner->buffer.p_subpic != NULL;
1413 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1417 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1418 NULL, NULL, b_telx );
1420 vlc_mutex_unlock( &p_owner->lock );
1423 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1425 subpicture_Delete( p_subpic );
1429 vlc_mutex_lock( &p_owner->lock );
1430 if( !p_owner->buffer.p_subpic )
1432 vlc_mutex_unlock( &p_owner->lock );
1438 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1441 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1443 assert( p_owner->p_clock );
1445 vlc_mutex_lock( &p_owner->lock );
1448 DecoderWaitUnblock( p_dec, &b_reject );
1450 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1451 &p_sout_block->i_rate, NULL, b_telx );
1453 vlc_mutex_unlock( &p_owner->lock );
1455 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1459 static void DecoderFlushBuffering( decoder_t *p_dec )
1461 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1463 vlc_assert_locked( &p_owner->lock );
1465 while( p_owner->buffer.p_picture )
1467 picture_t *p_picture = p_owner->buffer.p_picture;
1469 p_owner->buffer.p_picture = p_picture->p_next;
1470 p_owner->buffer.i_count--;
1472 if( p_owner->p_vout )
1473 vout_DropPicture( p_owner->p_vout, p_picture );
1475 if( !p_owner->buffer.p_picture )
1476 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1478 while( p_owner->buffer.p_audio )
1480 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1482 p_owner->buffer.p_audio = p_audio->p_next;
1483 p_owner->buffer.i_count--;
1485 aout_BufferFree( p_audio );
1487 if( !p_owner->buffer.p_audio )
1488 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1490 while( p_owner->buffer.p_subpic )
1492 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1494 p_owner->buffer.p_subpic = p_subpic->p_next;
1495 p_owner->buffer.i_count--;
1497 subpicture_Delete( p_subpic );
1499 if( !p_owner->buffer.p_subpic )
1500 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1504 /* This function process a block for sout
1506 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1508 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1509 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1510 block_t *p_sout_block;
1512 while( ( p_sout_block =
1513 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1515 if( !p_owner->p_sout_input )
1517 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1519 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1520 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1521 if( p_dec->fmt_in.psz_language )
1523 if( p_owner->sout.psz_language )
1524 free( p_owner->sout.psz_language );
1525 p_owner->sout.psz_language =
1526 strdup( p_dec->fmt_in.psz_language );
1529 p_owner->p_sout_input =
1530 sout_InputNew( p_owner->p_sout,
1533 if( p_owner->p_sout_input == NULL )
1535 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1536 (char *)&p_owner->sout.i_codec );
1537 p_dec->b_error = true;
1539 while( p_sout_block )
1541 block_t *p_next = p_sout_block->p_next;
1542 block_Release( p_sout_block );
1543 p_sout_block = p_next;
1549 while( p_sout_block )
1551 block_t *p_next = p_sout_block->p_next;
1553 p_sout_block->p_next = NULL;
1555 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1557 p_sout_block = p_next;
1560 /* For now it's enough, as only sout impact on this flag */
1561 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1562 p_owner->p_input->p->b_out_pace_control )
1564 msg_Dbg( p_dec, "switching to sync mode" );
1565 p_owner->p_input->p->b_out_pace_control = false;
1567 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1568 !p_owner->p_input->p->b_out_pace_control )
1570 msg_Dbg( p_dec, "switching to async mode" );
1571 p_owner->p_input->p->b_out_pace_control = true;
1576 /* This function process a video block
1578 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1580 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1582 if( p_owner->p_packetizer )
1584 block_t *p_packetized_block;
1585 decoder_t *p_packetizer = p_owner->p_packetizer;
1587 while( (p_packetized_block =
1588 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1590 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1592 es_format_Clean( &p_dec->fmt_in );
1593 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1595 if( p_packetizer->pf_get_cc )
1596 DecoderGetCc( p_dec, p_packetizer );
1598 while( p_packetized_block )
1600 block_t *p_next = p_packetized_block->p_next;
1601 p_packetized_block->p_next = NULL;
1603 DecoderDecodeVideo( p_dec, p_packetized_block );
1605 p_packetized_block = p_next;
1611 DecoderDecodeVideo( p_dec, p_block );
1614 if( b_flush && p_owner->p_vout )
1615 vout_Flush( p_owner->p_vout, 1 );
1618 /* This function process a audio block
1620 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1622 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1624 if( p_owner->p_packetizer )
1626 block_t *p_packetized_block;
1627 decoder_t *p_packetizer = p_owner->p_packetizer;
1629 while( (p_packetized_block =
1630 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1632 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1634 es_format_Clean( &p_dec->fmt_in );
1635 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1638 while( p_packetized_block )
1640 block_t *p_next = p_packetized_block->p_next;
1641 p_packetized_block->p_next = NULL;
1643 DecoderDecodeAudio( p_dec, p_packetized_block );
1645 p_packetized_block = p_next;
1651 DecoderDecodeAudio( p_dec, p_block );
1654 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1655 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1658 /* This function process a subtitle block
1660 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1662 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1663 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1665 input_thread_t *p_input = p_owner->p_input;
1666 vout_thread_t *p_vout;
1667 subpicture_t *p_spu;
1669 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1671 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1672 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1673 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1675 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1676 if( p_vout && p_owner->p_spu_vout == p_vout )
1678 /* Preroll does not work very well with subtitle */
1679 if( p_spu->i_start > 0 &&
1680 p_spu->i_start < p_owner->i_preroll_end &&
1681 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1683 subpicture_Delete( p_spu );
1687 DecoderPlaySpu( p_dec, p_spu, b_telx );
1692 subpicture_Delete( p_spu );
1695 vlc_object_release( p_vout );
1698 if( b_flush && p_owner->p_spu_vout )
1700 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1702 if( p_vout && p_owner->p_spu_vout == p_vout )
1703 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1704 p_owner->i_spu_channel );
1707 vlc_object_release( p_vout );
1714 * \param p_dec the decoder object
1715 * \param p_block the block to decode
1716 * \return VLC_SUCCESS or an error code
1718 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1720 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1721 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1723 if( p_block && p_block->i_buffer <= 0 )
1725 assert( !b_flush_request );
1726 block_Release( p_block );
1731 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1734 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1736 DecoderProcessSout( p_dec, p_block );
1741 bool b_flush = false;
1745 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1746 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1748 b_flush = !b_flushing && b_flush_request;
1750 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1753 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1755 DecoderProcessAudio( p_dec, p_block, b_flush );
1757 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1759 DecoderProcessVideo( p_dec, p_block, b_flush );
1761 else if( p_dec->fmt_in.i_cat == SPU_ES )
1763 DecoderProcessSpu( p_dec, p_block, b_flush );
1767 msg_Err( p_dec, "unknown ES format" );
1768 p_dec->b_error = true;
1773 if( b_flush_request )
1775 vlc_mutex_lock( &p_owner->lock );
1776 DecoderFlushBuffering( p_dec );
1777 vlc_mutex_unlock( &p_owner->lock );
1779 DecoderSignalFlushed( p_dec );
1782 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1786 * Destroys a decoder object
1788 * \param p_dec the decoder object
1791 static void DeleteDecoder( decoder_t * p_dec )
1793 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1795 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1796 (char*)&p_dec->fmt_in.i_codec,
1797 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1799 /* Free all packets still in the decoder fifo. */
1800 block_FifoEmpty( p_owner->p_fifo );
1801 block_FifoRelease( p_owner->p_fifo );
1804 vlc_mutex_lock( &p_owner->lock );
1805 DecoderFlushBuffering( p_dec );
1806 vlc_mutex_unlock( &p_owner->lock );
1809 if( p_owner->p_aout_input )
1810 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1811 if( p_owner->p_aout )
1813 vlc_object_release( p_owner->p_aout );
1814 p_owner->p_aout = NULL;
1816 if( p_owner->p_vout )
1818 /* Hack to make sure all the the pictures are freed by the decoder */
1819 vout_FixLeaks( p_owner->p_vout, true );
1821 /* We are about to die. Reattach video output to p_vlc. */
1822 vout_Request( p_dec, p_owner->p_vout, NULL );
1823 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1827 if( p_owner->p_sout_input )
1829 sout_InputDelete( p_owner->p_sout_input );
1830 es_format_Clean( &p_owner->sout );
1834 if( p_dec->fmt_in.i_cat == SPU_ES )
1836 vout_thread_t *p_vout;
1838 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1839 if( p_vout && p_owner->p_spu_vout == p_vout )
1841 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1842 p_owner->i_spu_channel );
1843 vlc_object_release( p_vout );
1847 es_format_Clean( &p_dec->fmt_in );
1848 es_format_Clean( &p_dec->fmt_out );
1850 if( p_owner->p_packetizer )
1852 module_unneed( p_owner->p_packetizer,
1853 p_owner->p_packetizer->p_module );
1854 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1855 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1856 vlc_object_detach( p_owner->p_packetizer );
1857 vlc_object_release( p_owner->p_packetizer );
1860 vlc_cond_destroy( &p_owner->wait );
1861 vlc_mutex_destroy( &p_owner->lock );
1863 vlc_object_detach( p_dec );
1868 /*****************************************************************************
1869 * Buffers allocation callbacks for the decoders
1870 *****************************************************************************/
1871 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1873 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1874 aout_buffer_t *p_buffer;
1876 if( p_owner->p_aout_input != NULL &&
1877 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1878 p_dec->fmt_out.audio.i_original_channels !=
1879 p_owner->audio.i_original_channels ||
1880 p_dec->fmt_out.audio.i_bytes_per_frame !=
1881 p_owner->audio.i_bytes_per_frame ) )
1883 aout_input_t *p_aout_input = p_owner->p_aout_input;
1885 /* Parameters changed, restart the aout */
1886 vlc_mutex_lock( &p_owner->lock );
1888 DecoderFlushBuffering( p_dec );
1890 p_owner->p_aout_input = NULL;
1891 aout_DecDelete( p_owner->p_aout, p_aout_input );
1893 vlc_mutex_unlock( &p_owner->lock );
1896 if( p_owner->p_aout_input == NULL )
1898 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1899 audio_sample_format_t format;
1900 aout_input_t *p_aout_input;
1901 aout_instance_t *p_aout;
1903 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1904 p_owner->audio = p_dec->fmt_out.audio;
1906 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1907 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1908 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1910 if ( i_force_dolby == 1 )
1912 format.i_original_channels = format.i_original_channels |
1913 AOUT_CHAN_DOLBYSTEREO;
1915 else /* i_force_dolby == 2 */
1917 format.i_original_channels = format.i_original_channels &
1918 ~AOUT_CHAN_DOLBYSTEREO;
1922 p_aout = p_owner->p_aout;
1923 p_aout_input = aout_DecNew( p_dec, &p_aout,
1924 &format, &p_dec->fmt_out.audio_replay_gain );
1926 vlc_mutex_lock( &p_owner->lock );
1927 p_owner->p_aout = p_aout;
1928 p_owner->p_aout_input = p_aout_input;
1929 vlc_mutex_unlock( &p_owner->lock );
1931 if( p_owner->p_aout_input == NULL )
1933 msg_Err( p_dec, "failed to create audio output" );
1934 p_dec->b_error = true;
1937 p_dec->fmt_out.audio.i_bytes_per_frame =
1938 p_owner->audio.i_bytes_per_frame;
1941 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1946 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1948 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1950 aout_DecDeleteBuffer( p_owner->p_aout,
1951 p_owner->p_aout_input, p_buffer );
1955 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1957 static picture_t *vout_new_buffer( decoder_t *p_dec )
1959 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1961 if( p_owner->p_vout == NULL ||
1962 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
1963 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
1964 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
1965 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
1967 vout_thread_t *p_vout;
1969 if( !p_dec->fmt_out.video.i_width ||
1970 !p_dec->fmt_out.video.i_height )
1972 /* Can't create a new vout without display size */
1976 if( !p_dec->fmt_out.video.i_visible_width ||
1977 !p_dec->fmt_out.video.i_visible_height )
1979 if( p_dec->fmt_in.video.i_visible_width &&
1980 p_dec->fmt_in.video.i_visible_height )
1982 p_dec->fmt_out.video.i_visible_width =
1983 p_dec->fmt_in.video.i_visible_width;
1984 p_dec->fmt_out.video.i_visible_height =
1985 p_dec->fmt_in.video.i_visible_height;
1989 p_dec->fmt_out.video.i_visible_width =
1990 p_dec->fmt_out.video.i_width;
1991 p_dec->fmt_out.video.i_visible_height =
1992 p_dec->fmt_out.video.i_height;
1996 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1997 var_CreateGetBool( p_dec, "hdtv-fix" ) )
1999 p_dec->fmt_out.video.i_visible_height = 1080;
2000 p_dec->fmt_out.video.i_sar_num *= 135;
2001 p_dec->fmt_out.video.i_sar_den *= 136;
2002 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2005 if( !p_dec->fmt_out.video.i_sar_num ||
2006 !p_dec->fmt_out.video.i_sar_den )
2008 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2009 p_dec->fmt_out.video.i_visible_height;
2011 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2012 p_dec->fmt_out.video.i_visible_width;
2015 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2016 &p_dec->fmt_out.video.i_sar_den,
2017 p_dec->fmt_out.video.i_sar_num,
2018 p_dec->fmt_out.video.i_sar_den, 50000 );
2020 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2021 p_owner->video = p_dec->fmt_out.video;
2023 vlc_mutex_lock( &p_owner->lock );
2025 DecoderFlushBuffering( p_dec );
2027 p_vout = p_owner->p_vout;
2028 p_owner->p_vout = NULL;
2029 vlc_mutex_unlock( &p_owner->lock );
2031 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2033 vlc_mutex_lock( &p_owner->lock );
2034 p_owner->p_vout = p_vout;
2035 vlc_mutex_unlock( &p_owner->lock );
2037 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2038 if( p_vout == NULL )
2040 msg_Err( p_dec, "failed to create video output" );
2041 p_dec->b_error = true;
2045 if( p_owner->video.i_rmask )
2046 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2047 if( p_owner->video.i_gmask )
2048 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2049 if( p_owner->video.i_bmask )
2050 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2053 /* Get a new picture
2057 picture_t *p_picture;
2059 if( p_dec->b_die || p_dec->b_error )
2062 /* The video filter chain required that there is always 1 free buffer
2063 * that it will use as temporary one. It will release the temporary
2064 * buffer once its work is done, so this check is safe even if we don't
2065 * lock around both count() and create().
2067 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2069 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2074 if( DecoderIsFlushing( p_dec ) )
2078 DecoderSignalBuffering( p_dec, true );
2080 /* Check the decoder doesn't leak pictures */
2081 vout_FixLeaks( p_owner->p_vout, false );
2083 msleep( VOUT_OUTMEM_SLEEP );
2087 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2089 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2092 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2094 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2097 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2099 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2102 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2104 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2105 vout_thread_t *p_vout = NULL;
2106 subpicture_t *p_subpic;
2107 int i_attempts = 30;
2109 while( i_attempts-- )
2111 if( p_dec->b_die || p_dec->b_error )
2114 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2118 msleep( VOUT_DISPLAY_DELAY );
2123 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2127 if( p_owner->p_spu_vout != p_vout )
2129 vlc_mutex_lock( &p_owner->lock );
2131 DecoderFlushBuffering( p_dec );
2133 vlc_mutex_unlock( &p_owner->lock );
2135 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2136 &p_owner->i_spu_channel );
2137 p_owner->i_spu_order = 0;
2138 p_owner->p_spu_vout = p_vout;
2141 p_subpic = subpicture_New();
2144 p_subpic->i_channel = p_owner->i_spu_channel;
2145 p_subpic->i_order = p_owner->i_spu_order++;
2146 p_subpic->b_subtitle = true;
2149 vlc_object_release( p_vout );
2154 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2156 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2157 vout_thread_t *p_vout = NULL;
2159 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2160 if( !p_vout || p_owner->p_spu_vout != p_vout )
2163 vlc_object_release( p_vout );
2164 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2168 subpicture_Delete( p_subpic );
2170 vlc_object_release( p_vout );