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.
309 * Thread-safe w.r.t. the decoder. May be a cancellation point.
311 * \param p_dec the decoder object
312 * \param p_block the data block
314 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
316 decoder_owner_sys_t *p_owner = p_dec->p_owner;
318 if( p_owner->p_input->p->b_out_pace_control )
320 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
322 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
324 /* FIXME: ideally we would check the time amount of data
325 * in the FIFO instead of its size. */
326 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
327 "consumed quickly enough), resetting fifo!" );
328 block_FifoEmpty( p_owner->p_fifo );
331 block_FifoPut( p_owner->p_fifo, p_block );
334 bool input_DecoderIsEmpty( decoder_t * p_dec )
336 assert( !p_dec->p_owner->b_buffering );
338 /* FIXME that's not really true */
339 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
342 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
344 decoder_owner_sys_t *p_owner = p_dec->p_owner;
347 vlc_mutex_lock( &p_owner->lock );
348 for( i = 0; i < 4; i++ )
349 pb_present[i] = p_owner->cc.pb_present[i];
350 vlc_mutex_unlock( &p_owner->lock );
352 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
354 decoder_owner_sys_t *p_owner = p_dec->p_owner;
356 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
358 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
363 static const vlc_fourcc_t fcc[4] = {
364 VLC_FOURCC('c', 'c', '1', ' '),
365 VLC_FOURCC('c', 'c', '2', ' '),
366 VLC_FOURCC('c', 'c', '3', ' '),
367 VLC_FOURCC('c', 'c', '4', ' '),
372 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
373 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
376 msg_Err( p_dec, "could not create decoder" );
377 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
378 _("VLC could not open the decoder module.") );
381 else if( !p_cc->p_module )
383 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
384 DeleteDecoder( p_cc );
385 vlc_object_release( p_cc );
388 p_cc->p_owner->p_clock = p_owner->p_clock;
390 vlc_mutex_lock( &p_owner->lock );
391 p_owner->cc.pp_decoder[i_channel] = p_cc;
392 vlc_mutex_unlock( &p_owner->lock );
398 vlc_mutex_lock( &p_owner->lock );
399 p_cc = p_owner->cc.pp_decoder[i_channel];
400 p_owner->cc.pp_decoder[i_channel] = NULL;
401 vlc_mutex_unlock( &p_owner->lock );
405 vlc_object_kill( p_cc );
406 module_unneed( p_cc, p_cc->p_module );
407 DeleteDecoder( p_cc );
408 vlc_object_release( p_cc );
413 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
415 decoder_owner_sys_t *p_owner = p_dec->p_owner;
418 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
421 vlc_mutex_lock( &p_owner->lock );
422 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
423 vlc_mutex_unlock( &p_owner->lock );
427 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
429 decoder_owner_sys_t *p_owner = p_dec->p_owner;
431 vlc_mutex_lock( &p_owner->lock );
433 assert( !p_owner->b_paused || !b_paused );
435 p_owner->b_paused = b_paused;
436 p_owner->pause.i_date = i_date;
437 p_owner->pause.i_ignore = 0;
438 vlc_cond_signal( &p_owner->wait );
440 DecoderOutputChangePause( p_dec, b_paused, i_date );
442 vlc_mutex_unlock( &p_owner->lock );
445 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
447 decoder_owner_sys_t *p_owner = p_dec->p_owner;
449 vlc_mutex_lock( &p_owner->lock );
450 p_owner->i_ts_delay = i_delay;
451 vlc_mutex_unlock( &p_owner->lock );
454 void input_DecoderStartBuffering( decoder_t *p_dec )
456 decoder_owner_sys_t *p_owner = p_dec->p_owner;
458 vlc_mutex_lock( &p_owner->lock );
460 DecoderFlush( p_dec );
462 p_owner->buffer.b_first = true;
463 p_owner->buffer.b_full = false;
464 p_owner->buffer.i_count = 0;
466 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic && !p_owner->buffer.p_audio );
468 p_owner->buffer.p_picture = NULL;
469 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
471 p_owner->buffer.p_subpic = NULL;
472 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
474 p_owner->buffer.p_audio = NULL;
475 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
477 p_owner->b_buffering = true;
479 vlc_cond_signal( &p_owner->wait );
481 vlc_mutex_unlock( &p_owner->lock );
484 void input_DecoderStopBuffering( decoder_t *p_dec )
486 decoder_owner_sys_t *p_owner = p_dec->p_owner;
488 vlc_mutex_lock( &p_owner->lock );
490 p_owner->b_buffering = false;
492 vlc_cond_signal( &p_owner->wait );
494 vlc_mutex_unlock( &p_owner->lock );
497 void input_DecoderWaitBuffering( decoder_t *p_dec )
499 decoder_owner_sys_t *p_owner = p_dec->p_owner;
501 vlc_mutex_lock( &p_owner->lock );
503 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
505 block_FifoWake( p_owner->p_fifo );
506 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
509 vlc_mutex_unlock( &p_owner->lock );
511 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
513 decoder_owner_sys_t *p_owner = p_dec->p_owner;
517 vlc_mutex_lock( &p_owner->lock );
518 if( p_dec->fmt_in.i_cat == VIDEO_ES )
520 if( p_owner->b_paused && p_owner->p_vout )
522 vout_NextPicture( p_owner->p_vout, pi_duration );
523 p_owner->pause.i_ignore++;
524 vlc_cond_signal( &p_owner->wait );
529 /* TODO subtitle should not be flushed */
530 DecoderFlush( p_dec );
532 vlc_mutex_unlock( &p_owner->lock );
535 /*****************************************************************************
537 *****************************************************************************/
538 static int DecoderGetInputAttachments( decoder_t *p_dec,
539 input_attachment_t ***ppp_attachment,
542 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
543 ppp_attachment, pi_attachment );
545 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
547 decoder_owner_sys_t *p_owner = p_dec->p_owner;
549 vlc_mutex_lock( &p_owner->lock );
550 if( p_owner->b_buffering || p_owner->b_paused )
552 vlc_mutex_unlock( &p_owner->lock );
554 if( !p_owner->p_clock || !i_ts )
557 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
559 static int DecoderGetDisplayRate( decoder_t *p_dec )
561 decoder_owner_sys_t *p_owner = p_dec->p_owner;
563 if( !p_owner->p_clock )
564 return INPUT_RATE_DEFAULT;
565 return input_clock_GetRate( p_owner->p_clock );
569 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
571 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
572 "VLC probably does not support this sound or video format.",
574 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
575 _("VLC does not support the audio or video format \"%4.4s\". "
576 "Unfortunately there is no way for you to fix this."), (char*)&codec );
581 * Create a decoder object
583 * \param p_input the input thread
584 * \param p_es the es descriptor
585 * \param i_object_type Object type as define in include/vlc_objects.h
586 * \return the decoder object
588 static decoder_t * CreateDecoder( input_thread_t *p_input,
589 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
592 decoder_owner_sys_t *p_owner;
595 p_dec = vlc_object_create( p_input, i_object_type );
599 p_dec->pf_decode_audio = NULL;
600 p_dec->pf_decode_video = NULL;
601 p_dec->pf_decode_sub = NULL;
602 p_dec->pf_get_cc = NULL;
603 p_dec->pf_packetize = NULL;
605 /* Initialize the decoder fifo */
606 p_dec->p_module = NULL;
608 memset( &null_es_format, 0, sizeof(es_format_t) );
609 es_format_Copy( &p_dec->fmt_in, fmt );
610 es_format_Copy( &p_dec->fmt_out, &null_es_format );
612 /* Allocate our private structure for the decoder */
613 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
614 if( p_dec->p_owner == NULL )
616 vlc_object_release( p_dec );
619 p_dec->p_owner->i_preroll_end = -1;
620 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
621 p_dec->p_owner->p_input = p_input;
622 p_dec->p_owner->p_aout = NULL;
623 p_dec->p_owner->p_aout_input = NULL;
624 p_dec->p_owner->p_vout = NULL;
625 p_dec->p_owner->p_spu_vout = NULL;
626 p_dec->p_owner->i_spu_channel = 0;
627 p_dec->p_owner->i_spu_order = 0;
628 p_dec->p_owner->p_sout = p_sout;
629 p_dec->p_owner->p_sout_input = NULL;
630 p_dec->p_owner->p_packetizer = NULL;
633 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
635 free( p_dec->p_owner );
636 vlc_object_release( p_dec );
640 /* Set buffers allocation callbacks for the decoders */
641 p_dec->pf_aout_buffer_new = aout_new_buffer;
642 p_dec->pf_aout_buffer_del = aout_del_buffer;
643 p_dec->pf_vout_buffer_new = vout_new_buffer;
644 p_dec->pf_vout_buffer_del = vout_del_buffer;
645 p_dec->pf_picture_link = vout_link_picture;
646 p_dec->pf_picture_unlink = vout_unlink_picture;
647 p_dec->pf_spu_buffer_new = spu_new_buffer;
648 p_dec->pf_spu_buffer_del = spu_del_buffer;
650 p_dec->pf_get_attachments = DecoderGetInputAttachments;
651 p_dec->pf_get_display_date = DecoderGetDisplayDate;
652 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
654 vlc_object_attach( p_dec, p_input );
656 /* Find a suitable decoder/packetizer module */
657 if( i_object_type == VLC_OBJECT_DECODER )
658 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
660 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
662 /* Check if decoder requires already packetized data */
663 if( i_object_type == VLC_OBJECT_DECODER &&
664 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
666 p_dec->p_owner->p_packetizer =
667 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
668 if( p_dec->p_owner->p_packetizer )
670 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
673 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
676 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
678 p_dec->p_owner->p_packetizer->p_module =
679 module_need( p_dec->p_owner->p_packetizer,
680 "packetizer", "$packetizer", 0 );
682 if( !p_dec->p_owner->p_packetizer->p_module )
684 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
685 vlc_object_detach( p_dec->p_owner->p_packetizer );
686 vlc_object_release( p_dec->p_owner->p_packetizer );
691 /* Copy ourself the input replay gain */
692 if( fmt->i_cat == AUDIO_ES )
694 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
696 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
698 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
699 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
701 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
703 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
704 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
710 vlc_mutex_init( &p_owner->lock );
711 vlc_cond_init( &p_owner->wait );
713 p_owner->b_paused = false;
714 p_owner->pause.i_date = 0;
715 p_owner->pause.i_ignore = 0;
717 p_owner->b_buffering = false;
718 p_owner->buffer.b_first = true;
719 p_owner->buffer.b_full = false;
720 p_owner->buffer.i_count = 0;
721 p_owner->buffer.p_picture = NULL;
722 p_owner->buffer.p_subpic = NULL;
723 p_owner->buffer.p_audio = NULL;
725 p_owner->b_flushing = false;
728 p_owner->cc.b_supported = false;
729 if( i_object_type == VLC_OBJECT_DECODER )
731 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
732 p_owner->cc.b_supported = true;
733 if( p_dec->pf_get_cc )
734 p_owner->cc.b_supported = true;
737 for( i = 0; i < 4; i++ )
739 p_owner->cc.pb_present[i] = false;
740 p_owner->cc.pp_decoder[i] = NULL;
742 p_owner->i_ts_delay = 0;
747 * The decoding main loop
749 * \param p_dec the decoder
751 static void *DecoderThread( vlc_object_t *p_this )
753 decoder_t *p_dec = (decoder_t *)p_this;
754 decoder_owner_sys_t *p_owner = p_dec->p_owner;
756 /* The decoder's main loop */
759 block_t *p_block = block_FifoGet( p_owner->p_fifo );
760 /* Make sure there is no cancellation point other than this one^^.
761 * If you need one, be sure to push cleanup of p_block. */
762 DecoderSignalBuffering( p_dec, p_block == NULL );
767 { /* Trash all received PES packets */
768 block_Release( p_block );
770 else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
777 DecoderSignalBuffering( p_dec, true );
781 static void DecoderFlush( decoder_t *p_dec )
783 decoder_owner_sys_t *p_owner = p_dec->p_owner;
786 vlc_assert_locked( &p_owner->lock );
789 block_FifoEmpty( p_owner->p_fifo );
791 /* Monitor for flush end */
792 p_owner->b_flushing = true;
793 vlc_cond_signal( &p_owner->wait );
795 /* Send a special block */
796 p_null = block_New( p_dec, 128 );
799 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
800 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
801 if( !p_dec->fmt_in.b_packetized )
802 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
803 memset( p_null->p_buffer, 0, p_null->i_buffer );
805 input_DecoderDecode( p_dec, p_null );
808 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
809 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
812 static void DecoderSignalFlushed( decoder_t *p_dec )
814 decoder_owner_sys_t *p_owner = p_dec->p_owner;
816 vlc_mutex_lock( &p_owner->lock );
818 if( p_owner->b_flushing )
820 p_owner->b_flushing = false;
821 vlc_cond_signal( &p_owner->wait );
824 vlc_mutex_unlock( &p_owner->lock );
827 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
829 decoder_owner_sys_t *p_owner = p_dec->p_owner;
831 vlc_mutex_lock( &p_owner->lock );
833 if( p_owner->b_buffering )
836 p_owner->buffer.b_full = true;
837 vlc_cond_signal( &p_owner->wait );
840 vlc_mutex_unlock( &p_owner->lock );
843 static bool DecoderIsFlushing( decoder_t *p_dec )
845 decoder_owner_sys_t *p_owner = p_dec->p_owner;
848 vlc_mutex_lock( &p_owner->lock );
850 b_flushing = p_owner->b_flushing;
852 vlc_mutex_unlock( &p_owner->lock );
857 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
859 decoder_owner_sys_t *p_owner = p_dec->p_owner;
861 vlc_assert_locked( &p_owner->lock );
863 while( !p_owner->b_flushing )
865 if( p_owner->b_paused )
867 if( p_owner->b_buffering && !p_owner->buffer.b_full )
869 if( p_owner->pause.i_ignore > 0 )
871 p_owner->pause.i_ignore--;
877 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
880 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
884 *pb_reject = p_owner->b_flushing;
887 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
889 decoder_owner_sys_t *p_owner = p_dec->p_owner;
891 vlc_assert_locked( &p_owner->lock );
893 /* XXX only audio and video output have to be paused.
894 * - for sout it is useless
895 * - for subs, it is done by the vout
897 if( p_dec->fmt_in.i_cat == AUDIO_ES )
899 if( p_owner->p_aout && p_owner->p_aout_input )
900 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
903 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
905 if( p_owner->p_vout )
906 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
909 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
911 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
912 *pi_preroll = INT64_MAX;
913 else if( p->i_pts > 0 )
914 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
915 else if( p->i_dts > 0 )
916 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
919 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
921 mtime_t current_date = mdate();
923 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
924 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
926 /* ETSI EN 300 472 Annex A : do not take into account the PTS
927 * for teletext streams. */
928 return current_date + 400000 + i_ts_delay;
933 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
934 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
936 decoder_owner_sys_t *p_owner = p_dec->p_owner;
937 input_clock_t *p_clock = p_owner->p_clock;
940 vlc_assert_locked( &p_owner->lock );
942 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
943 const mtime_t i_es_delay = p_owner->i_ts_delay;
947 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
950 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
951 *pi_ts0 + i_es_delay );
952 if( pi_ts1 && *pi_ts1 > 0 )
953 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
954 *pi_ts1 + i_es_delay );
956 /* Do not create ephemere data because of rounding errors */
957 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
961 i_rate = input_clock_GetRate( p_clock );
964 *pi_duration = ( *pi_duration * i_rate +
965 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
972 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
973 if( pi_ts1 && *pi_ts1 <= 0 )
979 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
980 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
984 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
985 int *pi_played_sum, int *pi_lost_sum )
987 decoder_owner_sys_t *p_owner = p_dec->p_owner;
988 aout_instance_t *p_aout = p_owner->p_aout;
989 aout_input_t *p_aout_input = p_owner->p_aout_input;
992 if( p_audio->start_date <= 0 )
994 msg_Warn( p_dec, "non-dated audio buffer received" );
996 aout_BufferFree( p_audio );
1001 vlc_mutex_lock( &p_owner->lock );
1003 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1005 p_audio->p_next = NULL;
1007 *p_owner->buffer.pp_audio_next = p_audio;
1008 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1010 p_owner->buffer.i_count++;
1011 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1012 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1014 p_owner->buffer.b_full = true;
1015 vlc_cond_signal( &p_owner->wait );
1021 bool b_has_more = false;
1023 DecoderWaitUnblock( p_dec, &b_reject );
1025 if( p_owner->b_buffering )
1027 vlc_mutex_unlock( &p_owner->lock );
1032 if( p_owner->buffer.p_audio )
1034 p_audio = p_owner->buffer.p_audio;
1036 p_owner->buffer.p_audio = p_audio->p_next;
1037 p_owner->buffer.i_count--;
1039 b_has_more = p_owner->buffer.p_audio != NULL;
1041 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1045 int i_rate = INPUT_RATE_DEFAULT;
1048 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1049 &i_rate, &i_delay, false );
1051 vlc_mutex_unlock( &p_owner->lock );
1054 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1056 if( !p_aout || !p_aout_input ||
1057 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1058 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1059 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1064 /* Wait if we are too early
1065 * FIXME that's plain ugly to do it here */
1066 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1068 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1069 *pi_played_sum += 1;
1070 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1074 if( p_audio->start_date <= 0 )
1076 msg_Warn( p_dec, "non-dated audio buffer received" );
1078 else if( p_audio->start_date > i_max_date )
1080 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1081 p_audio->start_date - mdate() );
1084 aout_BufferFree( p_audio );
1090 vlc_mutex_lock( &p_owner->lock );
1091 if( !p_owner->buffer.p_audio )
1093 vlc_mutex_unlock( &p_owner->lock );
1099 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1101 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1102 input_thread_t *p_input = p_owner->p_input;
1103 aout_buffer_t *p_aout_buf;
1108 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1110 aout_instance_t *p_aout = p_owner->p_aout;
1111 aout_input_t *p_aout_input = p_owner->p_aout_input;
1117 /* It prevent freezing VLC in case of broken decoder */
1118 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1120 block_Release( p_block );
1125 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1127 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1131 if( p_owner->i_preroll_end > 0 )
1133 msg_Dbg( p_dec, "End of audio preroll" );
1134 if( p_owner->p_aout && p_owner->p_aout_input )
1135 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1137 p_owner->i_preroll_end = -1;
1140 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1143 /* Update ugly stat */
1144 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1146 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1148 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1150 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1152 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1155 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1158 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1160 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1166 assert( p_dec_cc->pf_get_cc != NULL );
1168 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1169 if( !p_owner->cc.b_supported )
1172 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1176 vlc_mutex_lock( &p_owner->lock );
1177 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1179 p_owner->cc.pb_present[i] |= pb_present[i];
1180 if( p_owner->cc.pp_decoder[i] )
1184 for( i = 0; i < 4; i++ )
1186 if( !p_owner->cc.pp_decoder[i] )
1189 if( i_cc_decoder > 1 )
1190 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1192 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1195 vlc_mutex_unlock( &p_owner->lock );
1198 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1199 int *pi_played_sum, int *pi_lost_sum )
1201 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1202 vout_thread_t *p_vout = p_owner->p_vout;
1203 bool b_first_buffered;
1205 if( p_picture->date <= 0 )
1207 msg_Warn( p_vout, "non-dated video buffer received" );
1209 vout_DropPicture( p_vout, p_picture );
1214 vlc_mutex_lock( &p_owner->lock );
1216 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1218 p_picture->p_next = NULL;
1220 *p_owner->buffer.pp_picture_next = p_picture;
1221 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1223 p_owner->buffer.i_count++;
1224 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1225 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1227 p_owner->buffer.b_full = true;
1228 vlc_cond_signal( &p_owner->wait );
1231 b_first_buffered = p_owner->buffer.p_picture != NULL;
1233 for( ;; b_first_buffered = false )
1235 bool b_has_more = false;
1239 DecoderWaitUnblock( p_dec, &b_reject );
1241 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1243 vlc_mutex_unlock( &p_owner->lock );
1246 bool b_buffering_first = p_owner->b_buffering;
1249 if( p_owner->buffer.p_picture )
1251 p_picture = p_owner->buffer.p_picture;
1253 p_owner->buffer.p_picture = p_picture->p_next;
1254 p_owner->buffer.i_count--;
1256 b_has_more = p_owner->buffer.p_picture != NULL;
1258 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1262 int i_rate = INPUT_RATE_DEFAULT;
1265 if( b_buffering_first )
1267 assert( p_owner->buffer.b_first );
1268 assert( !p_owner->buffer.i_count );
1269 msg_Dbg( p_dec, "Received first picture" );
1270 p_owner->buffer.b_first = false;
1271 p_picture->b_force = true;
1273 if( p_owner->p_clock )
1274 i_rate = input_clock_GetRate( p_owner->p_clock );
1276 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1277 &i_rate, &i_delay, false );
1279 vlc_mutex_unlock( &p_owner->lock );
1282 const mtime_t i_max_date = mdate() + i_delay + VOUT_BOGUS_DELAY;
1284 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1289 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1291 /* Be sure to not display old picture after our own */
1292 vout_Flush( p_vout, p_picture->date );
1293 p_owner->i_last_rate = i_rate;
1295 vout_DisplayPicture( p_vout, p_picture );
1299 if( p_picture->date <= 0 )
1301 msg_Warn( p_vout, "non-dated video buffer received" );
1305 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1306 p_picture->date - mdate() );
1309 vout_DropPicture( p_vout, p_picture );
1313 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1315 *pi_played_sum += i_tmp_display;
1316 *pi_lost_sum += i_tmp_lost;
1318 if( !b_has_more || b_buffering_first )
1321 vlc_mutex_lock( &p_owner->lock );
1322 if( !p_owner->buffer.p_picture )
1324 vlc_mutex_unlock( &p_owner->lock );
1330 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1332 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1333 input_thread_t *p_input = p_owner->p_input;
1337 int i_displayed = 0;
1339 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1341 vout_thread_t *p_vout = p_owner->p_vout;
1344 /* It prevent freezing VLC in case of broken decoder */
1345 vout_DropPicture( p_vout, p_pic );
1347 block_Release( p_block );
1353 if( p_pic->date < p_owner->i_preroll_end )
1355 vout_DropPicture( p_vout, p_pic );
1359 if( p_owner->i_preroll_end > 0 )
1361 msg_Dbg( p_dec, "End of video preroll" );
1363 vout_Flush( p_vout, 1 );
1365 p_owner->i_preroll_end = -1;
1368 if( p_dec->pf_get_cc &&
1369 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1370 DecoderGetCc( p_dec, p_dec );
1372 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1374 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1376 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1378 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1380 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1383 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1386 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1390 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1393 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1394 vout_thread_t *p_vout = p_owner->p_spu_vout;
1397 if( p_subpic->i_start <= 0 )
1399 msg_Warn( p_dec, "non-dated spu buffer received" );
1400 subpicture_Delete( p_subpic );
1405 vlc_mutex_lock( &p_owner->lock );
1407 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1409 p_subpic->p_next = NULL;
1411 *p_owner->buffer.pp_subpic_next = p_subpic;
1412 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1414 p_owner->buffer.i_count++;
1415 /* XXX it is important to be full after the first one */
1416 if( p_owner->buffer.i_count > 0 )
1418 p_owner->buffer.b_full = true;
1419 vlc_cond_signal( &p_owner->wait );
1425 bool b_has_more = false;
1427 DecoderWaitUnblock( p_dec, &b_reject );
1429 if( p_owner->b_buffering )
1431 vlc_mutex_unlock( &p_owner->lock );
1436 if( p_owner->buffer.p_subpic )
1438 p_subpic = p_owner->buffer.p_subpic;
1440 p_owner->buffer.p_subpic = p_subpic->p_next;
1441 p_owner->buffer.i_count--;
1443 b_has_more = p_owner->buffer.p_subpic != NULL;
1445 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1449 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1450 NULL, NULL, b_telx );
1452 vlc_mutex_unlock( &p_owner->lock );
1455 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1457 subpicture_Delete( p_subpic );
1461 vlc_mutex_lock( &p_owner->lock );
1462 if( !p_owner->buffer.p_subpic )
1464 vlc_mutex_unlock( &p_owner->lock );
1470 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1473 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1475 assert( p_owner->p_clock );
1477 vlc_mutex_lock( &p_owner->lock );
1480 DecoderWaitUnblock( p_dec, &b_reject );
1482 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts, &p_sout_block->i_length,
1483 &p_sout_block->i_rate, NULL, b_telx );
1485 vlc_mutex_unlock( &p_owner->lock );
1487 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1491 static void DecoderFlushBuffering( decoder_t *p_dec )
1493 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1495 vlc_assert_locked( &p_owner->lock );
1497 while( p_owner->buffer.p_picture )
1499 picture_t *p_picture = p_owner->buffer.p_picture;
1501 p_owner->buffer.p_picture = p_picture->p_next;
1502 p_owner->buffer.i_count--;
1504 if( p_owner->p_vout )
1505 vout_DropPicture( p_owner->p_vout, p_picture );
1507 if( !p_owner->buffer.p_picture )
1508 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1510 while( p_owner->buffer.p_audio )
1512 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1514 p_owner->buffer.p_audio = p_audio->p_next;
1515 p_owner->buffer.i_count--;
1517 aout_BufferFree( p_audio );
1519 if( !p_owner->buffer.p_audio )
1520 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1522 while( p_owner->buffer.p_subpic )
1524 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1526 p_owner->buffer.p_subpic = p_subpic->p_next;
1527 p_owner->buffer.i_count--;
1529 subpicture_Delete( p_subpic );
1531 if( !p_owner->buffer.p_subpic )
1532 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1536 /* This function process a block for sout
1538 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1540 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1541 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1542 block_t *p_sout_block;
1544 while( ( p_sout_block =
1545 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1547 if( !p_owner->p_sout_input )
1549 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1551 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1552 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1553 if( p_dec->fmt_in.psz_language )
1555 if( p_owner->sout.psz_language )
1556 free( p_owner->sout.psz_language );
1557 p_owner->sout.psz_language =
1558 strdup( p_dec->fmt_in.psz_language );
1561 p_owner->p_sout_input =
1562 sout_InputNew( p_owner->p_sout,
1565 if( p_owner->p_sout_input == NULL )
1567 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1568 (char *)&p_owner->sout.i_codec );
1569 p_dec->b_error = true;
1571 while( p_sout_block )
1573 block_t *p_next = p_sout_block->p_next;
1574 block_Release( p_sout_block );
1575 p_sout_block = p_next;
1581 while( p_sout_block )
1583 block_t *p_next = p_sout_block->p_next;
1585 p_sout_block->p_next = NULL;
1587 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1589 p_sout_block = p_next;
1592 /* For now it's enough, as only sout impact on this flag */
1593 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1594 p_owner->p_input->p->b_out_pace_control )
1596 msg_Dbg( p_dec, "switching to sync mode" );
1597 p_owner->p_input->p->b_out_pace_control = false;
1599 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1600 !p_owner->p_input->p->b_out_pace_control )
1602 msg_Dbg( p_dec, "switching to async mode" );
1603 p_owner->p_input->p->b_out_pace_control = true;
1608 /* This function process a video block
1610 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1612 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1614 if( p_owner->p_packetizer )
1616 block_t *p_packetized_block;
1617 decoder_t *p_packetizer = p_owner->p_packetizer;
1619 while( (p_packetized_block =
1620 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1622 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1624 es_format_Clean( &p_dec->fmt_in );
1625 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1627 if( p_packetizer->pf_get_cc )
1628 DecoderGetCc( p_dec, p_packetizer );
1630 while( p_packetized_block )
1632 block_t *p_next = p_packetized_block->p_next;
1633 p_packetized_block->p_next = NULL;
1635 DecoderDecodeVideo( p_dec, p_packetized_block );
1637 p_packetized_block = p_next;
1643 DecoderDecodeVideo( p_dec, p_block );
1646 if( b_flush && p_owner->p_vout )
1647 vout_Flush( p_owner->p_vout, 1 );
1650 /* This function process a audio block
1652 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1654 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1656 if( p_owner->p_packetizer )
1658 block_t *p_packetized_block;
1659 decoder_t *p_packetizer = p_owner->p_packetizer;
1661 while( (p_packetized_block =
1662 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1664 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1666 es_format_Clean( &p_dec->fmt_in );
1667 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1670 while( p_packetized_block )
1672 block_t *p_next = p_packetized_block->p_next;
1673 p_packetized_block->p_next = NULL;
1675 DecoderDecodeAudio( p_dec, p_packetized_block );
1677 p_packetized_block = p_next;
1683 DecoderDecodeAudio( p_dec, p_block );
1686 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1687 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1690 /* This function process a subtitle block
1692 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1694 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1695 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1697 input_thread_t *p_input = p_owner->p_input;
1698 vout_thread_t *p_vout;
1699 subpicture_t *p_spu;
1701 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1703 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1704 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1705 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1707 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1708 if( p_vout && p_owner->p_spu_vout == p_vout )
1710 /* Preroll does not work very well with subtitle */
1711 if( p_spu->i_start > 0 &&
1712 p_spu->i_start < p_owner->i_preroll_end &&
1713 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1715 subpicture_Delete( p_spu );
1719 DecoderPlaySpu( p_dec, p_spu, b_telx );
1724 subpicture_Delete( p_spu );
1727 vlc_object_release( p_vout );
1730 if( b_flush && p_owner->p_spu_vout )
1732 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1734 if( p_vout && p_owner->p_spu_vout == p_vout )
1735 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1736 p_owner->i_spu_channel );
1739 vlc_object_release( p_vout );
1746 * \param p_dec the decoder object
1747 * \param p_block the block to decode
1748 * \return VLC_SUCCESS or an error code
1750 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1752 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1753 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1755 if( p_block && p_block->i_buffer <= 0 )
1757 assert( !b_flush_request );
1758 block_Release( p_block );
1762 int canc = vlc_savecancel ();
1764 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1767 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1769 DecoderProcessSout( p_dec, p_block );
1774 bool b_flush = false;
1778 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1779 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1781 b_flush = !b_flushing && b_flush_request;
1783 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1786 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1788 DecoderProcessAudio( p_dec, p_block, b_flush );
1790 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1792 DecoderProcessVideo( p_dec, p_block, b_flush );
1794 else if( p_dec->fmt_in.i_cat == SPU_ES )
1796 DecoderProcessSpu( p_dec, p_block, b_flush );
1800 msg_Err( p_dec, "unknown ES format" );
1801 p_dec->b_error = true;
1806 if( b_flush_request )
1808 vlc_mutex_lock( &p_owner->lock );
1809 DecoderFlushBuffering( p_dec );
1810 vlc_mutex_unlock( &p_owner->lock );
1812 DecoderSignalFlushed( p_dec );
1814 vlc_restorecancel(canc);
1816 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1820 * Destroys a decoder object
1822 * \param p_dec the decoder object
1825 static void DeleteDecoder( decoder_t * p_dec )
1827 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1829 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1830 (char*)&p_dec->fmt_in.i_codec,
1831 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1833 /* Free all packets still in the decoder fifo. */
1834 block_FifoEmpty( p_owner->p_fifo );
1835 block_FifoRelease( p_owner->p_fifo );
1838 vlc_mutex_lock( &p_owner->lock );
1839 DecoderFlushBuffering( p_dec );
1840 vlc_mutex_unlock( &p_owner->lock );
1843 if( p_owner->p_aout_input )
1844 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1845 if( p_owner->p_aout )
1847 vlc_object_release( p_owner->p_aout );
1848 p_owner->p_aout = NULL;
1850 if( p_owner->p_vout )
1852 /* Hack to make sure all the the pictures are freed by the decoder */
1853 vout_FixLeaks( p_owner->p_vout, true );
1855 /* We are about to die. Reattach video output to p_vlc. */
1856 vout_Request( p_dec, p_owner->p_vout, NULL );
1857 var_SetBool( p_owner->p_input, "intf-change-vout", true );
1861 if( p_owner->p_sout_input )
1863 sout_InputDelete( p_owner->p_sout_input );
1864 es_format_Clean( &p_owner->sout );
1868 if( p_dec->fmt_in.i_cat == SPU_ES )
1870 vout_thread_t *p_vout;
1872 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1873 if( p_vout && p_owner->p_spu_vout == p_vout )
1875 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1876 p_owner->i_spu_channel );
1877 vlc_object_release( p_vout );
1881 es_format_Clean( &p_dec->fmt_in );
1882 es_format_Clean( &p_dec->fmt_out );
1884 if( p_owner->p_packetizer )
1886 module_unneed( p_owner->p_packetizer,
1887 p_owner->p_packetizer->p_module );
1888 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1889 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1890 vlc_object_detach( p_owner->p_packetizer );
1891 vlc_object_release( p_owner->p_packetizer );
1894 vlc_cond_destroy( &p_owner->wait );
1895 vlc_mutex_destroy( &p_owner->lock );
1897 vlc_object_detach( p_dec );
1902 /*****************************************************************************
1903 * Buffers allocation callbacks for the decoders
1904 *****************************************************************************/
1905 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1907 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1908 aout_buffer_t *p_buffer;
1910 if( p_owner->p_aout_input != NULL &&
1911 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
1912 p_dec->fmt_out.audio.i_original_channels !=
1913 p_owner->audio.i_original_channels ||
1914 p_dec->fmt_out.audio.i_bytes_per_frame !=
1915 p_owner->audio.i_bytes_per_frame ) )
1917 aout_input_t *p_aout_input = p_owner->p_aout_input;
1919 /* Parameters changed, restart the aout */
1920 vlc_mutex_lock( &p_owner->lock );
1922 DecoderFlushBuffering( p_dec );
1924 p_owner->p_aout_input = NULL;
1925 aout_DecDelete( p_owner->p_aout, p_aout_input );
1927 vlc_mutex_unlock( &p_owner->lock );
1930 if( p_owner->p_aout_input == NULL )
1932 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1933 audio_sample_format_t format;
1934 aout_input_t *p_aout_input;
1935 aout_instance_t *p_aout;
1937 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1938 p_owner->audio = p_dec->fmt_out.audio;
1940 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
1941 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1942 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1944 if ( i_force_dolby == 1 )
1946 format.i_original_channels = format.i_original_channels |
1947 AOUT_CHAN_DOLBYSTEREO;
1949 else /* i_force_dolby == 2 */
1951 format.i_original_channels = format.i_original_channels &
1952 ~AOUT_CHAN_DOLBYSTEREO;
1956 p_aout = p_owner->p_aout;
1957 p_aout_input = aout_DecNew( p_dec, &p_aout,
1958 &format, &p_dec->fmt_out.audio_replay_gain );
1960 vlc_mutex_lock( &p_owner->lock );
1961 p_owner->p_aout = p_aout;
1962 p_owner->p_aout_input = p_aout_input;
1963 vlc_mutex_unlock( &p_owner->lock );
1965 if( p_owner->p_aout_input == NULL )
1967 msg_Err( p_dec, "failed to create audio output" );
1968 p_dec->b_error = true;
1971 p_dec->fmt_out.audio.i_bytes_per_frame =
1972 p_owner->audio.i_bytes_per_frame;
1975 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
1980 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1982 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1984 aout_DecDeleteBuffer( p_owner->p_aout,
1985 p_owner->p_aout_input, p_buffer );
1989 int vout_CountPictureAvailable( vout_thread_t *p_vout );
1991 static picture_t *vout_new_buffer( decoder_t *p_dec )
1993 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1995 if( p_owner->p_vout == NULL ||
1996 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
1997 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
1998 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
1999 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2001 vout_thread_t *p_vout;
2003 if( !p_dec->fmt_out.video.i_width ||
2004 !p_dec->fmt_out.video.i_height )
2006 /* Can't create a new vout without display size */
2010 if( !p_dec->fmt_out.video.i_visible_width ||
2011 !p_dec->fmt_out.video.i_visible_height )
2013 if( p_dec->fmt_in.video.i_visible_width &&
2014 p_dec->fmt_in.video.i_visible_height )
2016 p_dec->fmt_out.video.i_visible_width =
2017 p_dec->fmt_in.video.i_visible_width;
2018 p_dec->fmt_out.video.i_visible_height =
2019 p_dec->fmt_in.video.i_visible_height;
2023 p_dec->fmt_out.video.i_visible_width =
2024 p_dec->fmt_out.video.i_width;
2025 p_dec->fmt_out.video.i_visible_height =
2026 p_dec->fmt_out.video.i_height;
2030 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2031 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2033 p_dec->fmt_out.video.i_visible_height = 1080;
2034 p_dec->fmt_out.video.i_sar_num *= 135;
2035 p_dec->fmt_out.video.i_sar_den *= 136;
2036 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2039 if( !p_dec->fmt_out.video.i_sar_num ||
2040 !p_dec->fmt_out.video.i_sar_den )
2042 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2043 p_dec->fmt_out.video.i_visible_height;
2045 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2046 p_dec->fmt_out.video.i_visible_width;
2049 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2050 &p_dec->fmt_out.video.i_sar_den,
2051 p_dec->fmt_out.video.i_sar_num,
2052 p_dec->fmt_out.video.i_sar_den, 50000 );
2054 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2055 p_owner->video = p_dec->fmt_out.video;
2057 vlc_mutex_lock( &p_owner->lock );
2059 DecoderFlushBuffering( p_dec );
2061 p_vout = p_owner->p_vout;
2062 p_owner->p_vout = NULL;
2063 vlc_mutex_unlock( &p_owner->lock );
2065 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2067 vlc_mutex_lock( &p_owner->lock );
2068 p_owner->p_vout = p_vout;
2069 vlc_mutex_unlock( &p_owner->lock );
2071 var_SetBool( p_owner->p_input, "intf-change-vout", true );
2072 if( p_vout == NULL )
2074 msg_Err( p_dec, "failed to create video output" );
2075 p_dec->b_error = true;
2079 if( p_owner->video.i_rmask )
2080 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2081 if( p_owner->video.i_gmask )
2082 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2083 if( p_owner->video.i_bmask )
2084 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2087 /* Get a new picture
2091 picture_t *p_picture;
2093 if( p_dec->b_die || p_dec->b_error )
2096 /* The video filter chain required that there is always 1 free buffer
2097 * that it will use as temporary one. It will release the temporary
2098 * buffer once its work is done, so this check is safe even if we don't
2099 * lock around both count() and create().
2101 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2103 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2108 if( DecoderIsFlushing( p_dec ) )
2112 DecoderSignalBuffering( p_dec, true );
2114 /* Check the decoder doesn't leak pictures */
2115 vout_FixLeaks( p_owner->p_vout, false );
2117 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2118 msleep( VOUT_OUTMEM_SLEEP );
2122 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2124 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2127 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2129 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2132 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2134 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2137 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2139 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2140 vout_thread_t *p_vout = NULL;
2141 subpicture_t *p_subpic;
2142 int i_attempts = 30;
2144 while( i_attempts-- )
2146 if( p_dec->b_die || p_dec->b_error )
2149 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2153 msleep( VOUT_DISPLAY_DELAY );
2158 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2162 if( p_owner->p_spu_vout != p_vout )
2164 vlc_mutex_lock( &p_owner->lock );
2166 DecoderFlushBuffering( p_dec );
2168 vlc_mutex_unlock( &p_owner->lock );
2170 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2171 &p_owner->i_spu_channel );
2172 p_owner->i_spu_order = 0;
2173 p_owner->p_spu_vout = p_vout;
2176 p_subpic = subpicture_New();
2179 p_subpic->i_channel = p_owner->i_spu_channel;
2180 p_subpic->i_order = p_owner->i_spu_order++;
2181 p_subpic->b_subtitle = true;
2184 vlc_object_release( p_vout );
2189 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2191 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2192 vout_thread_t *p_vout = NULL;
2194 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2195 if( !p_vout || p_owner->p_spu_vout != p_vout )
2198 vlc_object_release( p_vout );
2199 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2203 subpicture_Delete( p_subpic );
2205 vlc_object_release( p_vout );