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"
51 #include "../video_output/vout_control.h"
53 static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
54 static void DeleteDecoder( decoder_t * );
56 static void *DecoderThread( vlc_object_t * );
57 static int DecoderProcess( decoder_t *, block_t * );
58 static void DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
59 static void DecoderFlush( decoder_t * );
60 static void DecoderSignalBuffering( decoder_t *, bool );
61 static void DecoderFlushBuffering( decoder_t * );
63 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
65 /* Buffers allocation callbacks for the decoders */
66 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
67 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
69 static picture_t *vout_new_buffer( decoder_t * );
70 static void vout_del_buffer( decoder_t *, picture_t * );
71 static void vout_link_picture( decoder_t *, picture_t * );
72 static void vout_unlink_picture( decoder_t *, picture_t * );
74 static subpicture_t *spu_new_buffer( decoder_t * );
75 static void spu_del_buffer( decoder_t *, subpicture_t * );
77 static es_format_t null_es_format;
79 struct decoder_owner_sys_t
81 int64_t i_preroll_end;
83 input_thread_t *p_input;
84 input_clock_t *p_clock;
87 vout_thread_t *p_spu_vout;
91 sout_instance_t *p_sout;
92 sout_packetizer_input_t *p_sout_input;
94 /* Some decoders require already packetized data (ie. not truncated) */
95 decoder_t *p_packetizer;
97 /* Current format in use by the output */
103 block_fifo_t *p_fifo;
105 /* Lock for communication with decoder thread */
109 /* -- These variables need locking on write(only) -- */
110 aout_instance_t *p_aout;
111 aout_input_t *p_aout_input;
113 vout_thread_t *p_vout;
115 /* -- Theses variables need locking on read *and* write -- */
133 picture_t *p_picture;
134 picture_t **pp_picture_next;
136 subpicture_t *p_subpic;
137 subpicture_t **pp_subpic_next;
139 aout_buffer_t *p_audio;
140 aout_buffer_t **pp_audio_next;
143 block_t **pp_block_next;
154 decoder_t *pp_decoder[4];
161 #define DECODER_MAX_BUFFERING_COUNT (4)
162 #define DECODER_MAX_BUFFERING_AUDIO_DURATION (AOUT_MAX_PREPARE_TIME)
163 #define DECODER_MAX_BUFFERING_VIDEO_DURATION (1*CLOCK_FREQ)
165 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
166 * a bogus PTS and won't be displayed */
167 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
170 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
173 /*****************************************************************************
175 *****************************************************************************/
176 picture_t *decoder_NewPicture( decoder_t *p_decoder )
178 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
180 msg_Warn( p_decoder, "can't get output picture" );
183 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
185 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
187 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
189 p_decoder->pf_picture_link( p_decoder, p_picture );
191 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
193 p_decoder->pf_picture_unlink( p_decoder, p_picture );
196 aout_buffer_t *decoder_NewAudioBuffer( decoder_t *p_decoder, int i_size )
198 if( !p_decoder->pf_aout_buffer_new )
200 return p_decoder->pf_aout_buffer_new( p_decoder, i_size );
202 void decoder_DeleteAudioBuffer( decoder_t *p_decoder, aout_buffer_t *p_buffer )
204 p_decoder->pf_aout_buffer_del( p_decoder, p_buffer );
207 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder )
209 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder );
211 msg_Warn( p_decoder, "can't get output subpicture" );
214 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
216 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
219 /* decoder_GetInputAttachments:
221 int decoder_GetInputAttachments( decoder_t *p_dec,
222 input_attachment_t ***ppp_attachment,
225 if( !p_dec->pf_get_attachments )
228 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
230 /* decoder_GetDisplayDate:
232 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
234 if( !p_dec->pf_get_display_date )
237 return p_dec->pf_get_display_date( p_dec, i_ts );
239 /* decoder_GetDisplayRate:
241 int decoder_GetDisplayRate( decoder_t *p_dec )
243 if( !p_dec->pf_get_display_rate )
244 return INPUT_RATE_DEFAULT;
246 return p_dec->pf_get_display_rate( p_dec );
250 * Spawns a new decoder thread
252 * \param p_input the input thread
253 * \param p_es the es descriptor
254 * \return the spawned decoder object
256 decoder_t *input_DecoderNew( input_thread_t *p_input,
257 es_format_t *fmt, input_clock_t *p_clock, sout_instance_t *p_sout )
259 decoder_t *p_dec = NULL;
263 /* If we are in sout mode, search for packetizer module */
266 /* Create the decoder configuration structure */
267 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
270 msg_Err( p_input, "could not create packetizer" );
271 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
272 _("VLC could not open the packetizer module.") );
279 /* Create the decoder configuration structure */
280 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
283 msg_Err( p_input, "could not create decoder" );
284 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
285 _("VLC could not open the decoder module.") );
290 if( !p_dec->p_module )
292 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
294 DeleteDecoder( p_dec );
295 vlc_object_release( p_dec );
299 p_dec->p_owner->p_clock = p_clock;
301 if( fmt->i_cat == AUDIO_ES )
302 i_priority = VLC_THREAD_PRIORITY_AUDIO;
304 i_priority = VLC_THREAD_PRIORITY_VIDEO;
306 /* Spawn the decoder thread */
307 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
308 i_priority, false ) )
310 msg_Err( p_dec, "cannot spawn decoder thread" );
311 module_unneed( p_dec, p_dec->p_module );
312 DeleteDecoder( p_dec );
313 vlc_object_release( p_dec );
321 * Kills a decoder thread and waits until it's finished
323 * \param p_input the input thread
324 * \param p_es the es descriptor
327 void input_DecoderDelete( decoder_t *p_dec )
329 decoder_owner_sys_t *p_owner = p_dec->p_owner;
331 vlc_object_kill( p_dec );
333 /* Make sure we aren't paused anymore */
334 vlc_mutex_lock( &p_owner->lock );
335 if( p_owner->b_paused || p_owner->b_buffering )
337 p_owner->b_paused = false;
338 p_owner->b_buffering = false;
339 vlc_cond_signal( &p_owner->wait );
341 vlc_mutex_unlock( &p_owner->lock );
343 vlc_thread_join( p_dec );
344 module_unneed( p_dec, p_dec->p_module );
347 if( p_dec->p_owner->cc.b_supported )
350 for( i = 0; i < 4; i++ )
351 input_DecoderSetCcState( p_dec, false, i );
354 /* Delete decoder configuration */
355 DeleteDecoder( p_dec );
357 /* Delete the decoder */
358 vlc_object_release( p_dec );
362 * Put a block_t in the decoder's fifo.
363 * Thread-safe w.r.t. the decoder. May be a cancellation point.
365 * \param p_dec the decoder object
366 * \param p_block the data block
368 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
370 decoder_owner_sys_t *p_owner = p_dec->p_owner;
372 if( p_owner->p_input->p->b_out_pace_control )
374 /* The fifo is not consummed when buffering and so will
376 * There is no need to lock as b_buffering is never modify
377 * inside decoder thread. */
378 if( !p_owner->b_buffering )
379 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
381 else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
383 /* FIXME: ideally we would check the time amount of data
384 * in the FIFO instead of its size. */
385 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
386 "consumed quickly enough), resetting fifo!" );
387 block_FifoEmpty( p_owner->p_fifo );
390 block_FifoPut( p_owner->p_fifo, p_block );
393 bool input_DecoderIsEmpty( decoder_t * p_dec )
395 assert( !p_dec->p_owner->b_buffering );
397 /* FIXME that's not really true */
398 return block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
401 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
403 decoder_owner_sys_t *p_owner = p_dec->p_owner;
406 vlc_mutex_lock( &p_owner->lock );
407 for( i = 0; i < 4; i++ )
408 pb_present[i] = p_owner->cc.pb_present[i];
409 vlc_mutex_unlock( &p_owner->lock );
411 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
413 decoder_owner_sys_t *p_owner = p_dec->p_owner;
415 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
417 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
422 static const vlc_fourcc_t fcc[4] = {
423 VLC_FOURCC('c', 'c', '1', ' '),
424 VLC_FOURCC('c', 'c', '2', ' '),
425 VLC_FOURCC('c', 'c', '3', ' '),
426 VLC_FOURCC('c', 'c', '4', ' '),
431 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
432 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_owner->p_sout );
435 msg_Err( p_dec, "could not create decoder" );
436 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
437 _("VLC could not open the decoder module.") );
440 else if( !p_cc->p_module )
442 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
443 DeleteDecoder( p_cc );
444 vlc_object_release( p_cc );
447 p_cc->p_owner->p_clock = p_owner->p_clock;
449 vlc_mutex_lock( &p_owner->lock );
450 p_owner->cc.pp_decoder[i_channel] = p_cc;
451 vlc_mutex_unlock( &p_owner->lock );
457 vlc_mutex_lock( &p_owner->lock );
458 p_cc = p_owner->cc.pp_decoder[i_channel];
459 p_owner->cc.pp_decoder[i_channel] = NULL;
460 vlc_mutex_unlock( &p_owner->lock );
464 vlc_object_kill( p_cc );
465 module_unneed( p_cc, p_cc->p_module );
466 DeleteDecoder( p_cc );
467 vlc_object_release( p_cc );
472 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
474 decoder_owner_sys_t *p_owner = p_dec->p_owner;
477 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
480 vlc_mutex_lock( &p_owner->lock );
481 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
482 vlc_mutex_unlock( &p_owner->lock );
486 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
488 decoder_owner_sys_t *p_owner = p_dec->p_owner;
490 vlc_mutex_lock( &p_owner->lock );
492 assert( !p_owner->b_paused || !b_paused );
494 p_owner->b_paused = b_paused;
495 p_owner->pause.i_date = i_date;
496 p_owner->pause.i_ignore = 0;
497 vlc_cond_signal( &p_owner->wait );
499 DecoderOutputChangePause( p_dec, b_paused, i_date );
501 vlc_mutex_unlock( &p_owner->lock );
504 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
506 decoder_owner_sys_t *p_owner = p_dec->p_owner;
508 vlc_mutex_lock( &p_owner->lock );
509 p_owner->i_ts_delay = i_delay;
510 vlc_mutex_unlock( &p_owner->lock );
513 void input_DecoderStartBuffering( decoder_t *p_dec )
515 decoder_owner_sys_t *p_owner = p_dec->p_owner;
517 vlc_mutex_lock( &p_owner->lock );
519 DecoderFlush( p_dec );
521 p_owner->buffer.b_first = true;
522 p_owner->buffer.b_full = false;
523 p_owner->buffer.i_count = 0;
525 assert( !p_owner->buffer.p_picture && !p_owner->buffer.p_subpic &&
526 !p_owner->buffer.p_audio && !p_owner->buffer.p_block );
528 p_owner->buffer.p_picture = NULL;
529 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
531 p_owner->buffer.p_subpic = NULL;
532 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
534 p_owner->buffer.p_audio = NULL;
535 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
537 p_owner->buffer.p_block = NULL;
538 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
541 p_owner->b_buffering = true;
543 vlc_cond_signal( &p_owner->wait );
545 vlc_mutex_unlock( &p_owner->lock );
548 void input_DecoderStopBuffering( decoder_t *p_dec )
550 decoder_owner_sys_t *p_owner = p_dec->p_owner;
552 vlc_mutex_lock( &p_owner->lock );
554 p_owner->b_buffering = false;
556 vlc_cond_signal( &p_owner->wait );
558 vlc_mutex_unlock( &p_owner->lock );
561 void input_DecoderWaitBuffering( decoder_t *p_dec )
563 decoder_owner_sys_t *p_owner = p_dec->p_owner;
565 vlc_mutex_lock( &p_owner->lock );
567 while( vlc_object_alive( p_dec ) && p_owner->b_buffering && !p_owner->buffer.b_full )
569 block_FifoWake( p_owner->p_fifo );
570 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
573 vlc_mutex_unlock( &p_owner->lock );
575 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
577 decoder_owner_sys_t *p_owner = p_dec->p_owner;
581 vlc_mutex_lock( &p_owner->lock );
582 if( p_dec->fmt_in.i_cat == VIDEO_ES )
584 if( p_owner->b_paused && p_owner->p_vout )
586 vout_NextPicture( p_owner->p_vout, pi_duration );
587 p_owner->pause.i_ignore++;
588 vlc_cond_signal( &p_owner->wait );
593 /* TODO subtitle should not be flushed */
594 DecoderFlush( p_dec );
596 vlc_mutex_unlock( &p_owner->lock );
599 /*****************************************************************************
601 *****************************************************************************/
602 static int DecoderGetInputAttachments( decoder_t *p_dec,
603 input_attachment_t ***ppp_attachment,
606 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
607 ppp_attachment, pi_attachment );
609 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
611 decoder_owner_sys_t *p_owner = p_dec->p_owner;
613 vlc_mutex_lock( &p_owner->lock );
614 if( p_owner->b_buffering || p_owner->b_paused )
616 vlc_mutex_unlock( &p_owner->lock );
618 if( !p_owner->p_clock || !i_ts )
621 return input_clock_GetTS( p_owner->p_clock, NULL, p_owner->p_input->i_pts_delay, i_ts );
623 static int DecoderGetDisplayRate( decoder_t *p_dec )
625 decoder_owner_sys_t *p_owner = p_dec->p_owner;
627 if( !p_owner->p_clock )
628 return INPUT_RATE_DEFAULT;
629 return input_clock_GetRate( p_owner->p_clock );
633 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
635 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
636 "VLC probably does not support this sound or video format.",
638 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
639 _("VLC does not support the audio or video format \"%4.4s\". "
640 "Unfortunately there is no way for you to fix this."), (char*)&codec );
645 * Create a decoder object
647 * \param p_input the input thread
648 * \param p_es the es descriptor
649 * \param i_object_type Object type as define in include/vlc_objects.h
650 * \return the decoder object
652 static decoder_t * CreateDecoder( input_thread_t *p_input,
653 es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
656 decoder_owner_sys_t *p_owner;
659 p_dec = vlc_object_create( p_input, i_object_type );
663 p_dec->pf_decode_audio = NULL;
664 p_dec->pf_decode_video = NULL;
665 p_dec->pf_decode_sub = NULL;
666 p_dec->pf_get_cc = NULL;
667 p_dec->pf_packetize = NULL;
669 /* Initialize the decoder fifo */
670 p_dec->p_module = NULL;
672 memset( &null_es_format, 0, sizeof(es_format_t) );
673 es_format_Copy( &p_dec->fmt_in, fmt );
674 es_format_Copy( &p_dec->fmt_out, &null_es_format );
676 /* Allocate our private structure for the decoder */
677 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
678 if( p_dec->p_owner == NULL )
680 vlc_object_release( p_dec );
683 p_dec->p_owner->i_preroll_end = -1;
684 p_dec->p_owner->i_last_rate = INPUT_RATE_DEFAULT;
685 p_dec->p_owner->p_input = p_input;
686 p_dec->p_owner->p_aout = NULL;
687 p_dec->p_owner->p_aout_input = NULL;
688 p_dec->p_owner->p_vout = NULL;
689 p_dec->p_owner->p_spu_vout = NULL;
690 p_dec->p_owner->i_spu_channel = 0;
691 p_dec->p_owner->i_spu_order = 0;
692 p_dec->p_owner->p_sout = p_sout;
693 p_dec->p_owner->p_sout_input = NULL;
694 p_dec->p_owner->p_packetizer = NULL;
697 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
699 free( p_dec->p_owner );
700 vlc_object_release( p_dec );
704 /* Set buffers allocation callbacks for the decoders */
705 p_dec->pf_aout_buffer_new = aout_new_buffer;
706 p_dec->pf_aout_buffer_del = aout_del_buffer;
707 p_dec->pf_vout_buffer_new = vout_new_buffer;
708 p_dec->pf_vout_buffer_del = vout_del_buffer;
709 p_dec->pf_picture_link = vout_link_picture;
710 p_dec->pf_picture_unlink = vout_unlink_picture;
711 p_dec->pf_spu_buffer_new = spu_new_buffer;
712 p_dec->pf_spu_buffer_del = spu_del_buffer;
714 p_dec->pf_get_attachments = DecoderGetInputAttachments;
715 p_dec->pf_get_display_date = DecoderGetDisplayDate;
716 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
718 vlc_object_attach( p_dec, p_input );
720 /* Find a suitable decoder/packetizer module */
721 if( i_object_type == VLC_OBJECT_DECODER )
722 p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
724 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
726 /* Check if decoder requires already packetized data */
727 if( i_object_type == VLC_OBJECT_DECODER &&
728 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
730 p_dec->p_owner->p_packetizer =
731 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
732 if( p_dec->p_owner->p_packetizer )
734 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
737 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
740 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
742 p_dec->p_owner->p_packetizer->p_module =
743 module_need( p_dec->p_owner->p_packetizer,
744 "packetizer", "$packetizer", 0 );
746 if( !p_dec->p_owner->p_packetizer->p_module )
748 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
749 vlc_object_detach( p_dec->p_owner->p_packetizer );
750 vlc_object_release( p_dec->p_owner->p_packetizer );
755 /* Copy ourself the input replay gain */
756 if( fmt->i_cat == AUDIO_ES )
758 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
760 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
762 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
763 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
765 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
767 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
768 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
774 vlc_mutex_init( &p_owner->lock );
775 vlc_cond_init( &p_owner->wait );
777 p_owner->b_paused = false;
778 p_owner->pause.i_date = 0;
779 p_owner->pause.i_ignore = 0;
781 p_owner->b_buffering = false;
782 p_owner->buffer.b_first = true;
783 p_owner->buffer.b_full = false;
784 p_owner->buffer.i_count = 0;
785 p_owner->buffer.p_picture = NULL;
786 p_owner->buffer.p_subpic = NULL;
787 p_owner->buffer.p_audio = NULL;
788 p_owner->buffer.p_block = NULL;
790 p_owner->b_flushing = false;
793 p_owner->cc.b_supported = false;
794 if( i_object_type == VLC_OBJECT_DECODER )
796 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
797 p_owner->cc.b_supported = true;
798 if( p_dec->pf_get_cc )
799 p_owner->cc.b_supported = true;
802 for( i = 0; i < 4; i++ )
804 p_owner->cc.pb_present[i] = false;
805 p_owner->cc.pp_decoder[i] = NULL;
807 p_owner->i_ts_delay = 0;
812 * The decoding main loop
814 * \param p_dec the decoder
816 static void *DecoderThread( vlc_object_t *p_this )
818 decoder_t *p_dec = (decoder_t *)p_this;
819 decoder_owner_sys_t *p_owner = p_dec->p_owner;
821 /* The decoder's main loop */
824 block_t *p_block = block_FifoGet( p_owner->p_fifo );
825 /* Make sure there is no cancellation point other than this one^^.
826 * If you need one, be sure to push cleanup of p_block. */
827 DecoderSignalBuffering( p_dec, p_block == NULL );
832 block_Release( p_block );
834 DecoderProcess( p_dec, p_block );
838 DecoderSignalBuffering( p_dec, true );
842 static void DecoderFlush( decoder_t *p_dec )
844 decoder_owner_sys_t *p_owner = p_dec->p_owner;
847 vlc_assert_locked( &p_owner->lock );
850 block_FifoEmpty( p_owner->p_fifo );
852 /* Monitor for flush end */
853 p_owner->b_flushing = true;
854 vlc_cond_signal( &p_owner->wait );
856 /* Send a special block */
857 p_null = block_New( p_dec, 128 );
860 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
861 p_null->i_flags |= BLOCK_FLAG_CORE_FLUSH;
862 if( !p_dec->fmt_in.b_packetized )
863 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
864 memset( p_null->p_buffer, 0, p_null->i_buffer );
866 input_DecoderDecode( p_dec, p_null );
869 while( vlc_object_alive( p_dec ) && p_owner->b_flushing )
870 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
873 static void DecoderSignalFlushed( decoder_t *p_dec )
875 decoder_owner_sys_t *p_owner = p_dec->p_owner;
877 vlc_mutex_lock( &p_owner->lock );
879 if( p_owner->b_flushing )
881 p_owner->b_flushing = false;
882 vlc_cond_signal( &p_owner->wait );
885 vlc_mutex_unlock( &p_owner->lock );
888 static void DecoderSignalBuffering( decoder_t *p_dec, bool b_full )
890 decoder_owner_sys_t *p_owner = p_dec->p_owner;
892 vlc_mutex_lock( &p_owner->lock );
894 if( p_owner->b_buffering )
897 p_owner->buffer.b_full = true;
898 vlc_cond_signal( &p_owner->wait );
901 vlc_mutex_unlock( &p_owner->lock );
904 static bool DecoderIsFlushing( decoder_t *p_dec )
906 decoder_owner_sys_t *p_owner = p_dec->p_owner;
909 vlc_mutex_lock( &p_owner->lock );
911 b_flushing = p_owner->b_flushing;
913 vlc_mutex_unlock( &p_owner->lock );
918 static void DecoderWaitUnblock( decoder_t *p_dec, bool *pb_reject )
920 decoder_owner_sys_t *p_owner = p_dec->p_owner;
922 vlc_assert_locked( &p_owner->lock );
924 while( !p_owner->b_flushing )
926 if( p_owner->b_paused )
928 if( p_owner->b_buffering && !p_owner->buffer.b_full )
930 if( p_owner->pause.i_ignore > 0 )
932 p_owner->pause.i_ignore--;
938 if( !p_owner->b_buffering || !p_owner->buffer.b_full )
941 vlc_cond_wait( &p_owner->wait, &p_owner->lock );
945 *pb_reject = p_owner->b_flushing;
948 static void DecoderOutputChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
950 decoder_owner_sys_t *p_owner = p_dec->p_owner;
952 vlc_assert_locked( &p_owner->lock );
954 /* XXX only audio and video output have to be paused.
955 * - for sout it is useless
956 * - for subs, it is done by the vout
958 if( p_dec->fmt_in.i_cat == AUDIO_ES )
960 if( p_owner->p_aout && p_owner->p_aout_input )
961 aout_DecChangePause( p_owner->p_aout, p_owner->p_aout_input,
964 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
966 if( p_owner->p_vout )
967 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
970 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
972 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
973 *pi_preroll = INT64_MAX;
974 else if( p->i_pts > 0 )
975 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
976 else if( p->i_dts > 0 )
977 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
980 static mtime_t DecoderTeletextFixTs( mtime_t i_ts, mtime_t i_ts_delay )
982 mtime_t current_date = mdate();
984 /* FIXME I don't really like that, es_out SHOULD do it using the video pts */
985 if( !i_ts || i_ts > current_date + 10000000 || i_ts < current_date )
987 /* ETSI EN 300 472 Annex A : do not take into account the PTS
988 * for teletext streams. */
989 return current_date + 400000 + i_ts_delay;
994 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
995 mtime_t *pi_duration, int *pi_rate, mtime_t *pi_delay, bool b_telx )
997 decoder_owner_sys_t *p_owner = p_dec->p_owner;
998 input_clock_t *p_clock = p_owner->p_clock;
1001 vlc_assert_locked( &p_owner->lock );
1003 const mtime_t i_ts_delay = p_owner->p_input->i_pts_delay;
1004 const mtime_t i_es_delay = p_owner->i_ts_delay;
1008 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1011 *pi_ts0 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1012 *pi_ts0 + i_es_delay );
1013 if( pi_ts1 && *pi_ts1 > 0 )
1014 *pi_ts1 = input_clock_GetTS( p_clock, &i_rate, i_ts_delay,
1015 *pi_ts1 + i_es_delay );
1017 /* Do not create ephemere data because of rounding errors */
1018 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1022 i_rate = input_clock_GetRate( p_clock );
1025 *pi_duration = ( *pi_duration * i_rate +
1026 INPUT_RATE_DEFAULT-1 ) / INPUT_RATE_DEFAULT;
1033 *pi_ts0 = DecoderTeletextFixTs( *pi_ts0, i_ts_delay );
1034 if( pi_ts1 && *pi_ts1 <= 0 )
1040 const int r = i_rate > 0 ? i_rate : INPUT_RATE_DEFAULT;
1041 *pi_delay = i_ts_delay + i_es_delay * r / INPUT_RATE_DEFAULT;
1045 static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
1046 int *pi_played_sum, int *pi_lost_sum )
1048 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1049 aout_instance_t *p_aout = p_owner->p_aout;
1050 aout_input_t *p_aout_input = p_owner->p_aout_input;
1053 if( p_audio->start_date <= 0 )
1055 msg_Warn( p_dec, "non-dated audio buffer received" );
1057 aout_BufferFree( p_audio );
1062 vlc_mutex_lock( &p_owner->lock );
1064 if( p_owner->b_buffering || p_owner->buffer.p_audio )
1066 p_audio->p_next = NULL;
1068 *p_owner->buffer.pp_audio_next = p_audio;
1069 p_owner->buffer.pp_audio_next = &p_audio->p_next;
1071 p_owner->buffer.i_count++;
1072 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1073 p_audio->start_date - p_owner->buffer.p_audio->start_date > DECODER_MAX_BUFFERING_AUDIO_DURATION )
1075 p_owner->buffer.b_full = true;
1076 vlc_cond_signal( &p_owner->wait );
1082 bool b_has_more = false;
1084 DecoderWaitUnblock( p_dec, &b_reject );
1086 if( p_owner->b_buffering )
1088 vlc_mutex_unlock( &p_owner->lock );
1093 if( p_owner->buffer.p_audio )
1095 p_audio = p_owner->buffer.p_audio;
1097 p_owner->buffer.p_audio = p_audio->p_next;
1098 p_owner->buffer.i_count--;
1100 b_has_more = p_owner->buffer.p_audio != NULL;
1102 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1106 int i_rate = INPUT_RATE_DEFAULT;
1109 DecoderFixTs( p_dec, &p_audio->start_date, &p_audio->end_date, NULL,
1110 &i_rate, &i_delay, false );
1112 vlc_mutex_unlock( &p_owner->lock );
1115 const mtime_t i_max_date = mdate() + i_delay + AOUT_MAX_ADVANCE_TIME;
1117 if( !p_aout || !p_aout_input ||
1118 p_audio->start_date <= 0 || p_audio->start_date > i_max_date ||
1119 i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE ||
1120 i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1125 /* Wait if we are too early
1126 * FIXME that's plain ugly to do it here */
1127 mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
1129 if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
1130 *pi_played_sum += 1;
1131 *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
1135 if( p_audio->start_date <= 0 )
1137 msg_Warn( p_dec, "non-dated audio buffer received" );
1139 else if( p_audio->start_date > i_max_date )
1141 msg_Warn( p_aout, "received buffer in the future (%"PRId64")",
1142 p_audio->start_date - mdate() );
1145 aout_BufferFree( p_audio );
1151 vlc_mutex_lock( &p_owner->lock );
1152 if( !p_owner->buffer.p_audio )
1154 vlc_mutex_unlock( &p_owner->lock );
1160 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1162 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1163 input_thread_t *p_input = p_owner->p_input;
1164 aout_buffer_t *p_aout_buf;
1169 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1171 aout_instance_t *p_aout = p_owner->p_aout;
1172 aout_input_t *p_aout_input = p_owner->p_aout_input;
1178 /* It prevent freezing VLC in case of broken decoder */
1179 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1181 block_Release( p_block );
1186 if( p_aout_buf->start_date < p_owner->i_preroll_end )
1188 aout_DecDeleteBuffer( p_aout, p_aout_input, p_aout_buf );
1192 if( p_owner->i_preroll_end > 0 )
1194 msg_Dbg( p_dec, "End of audio preroll" );
1195 if( p_owner->p_aout && p_owner->p_aout_input )
1196 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1198 p_owner->i_preroll_end = -1;
1201 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1204 /* Update ugly stat */
1205 if( i_decoded > 0 || i_lost > 0 || i_played > 0 )
1207 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1209 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_abuffers,
1211 stats_UpdateInteger( p_dec, p_input->p->counters.p_played_abuffers,
1213 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio,
1216 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1219 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1221 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1227 assert( p_dec_cc->pf_get_cc != NULL );
1229 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1230 if( !p_owner->cc.b_supported )
1233 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1237 vlc_mutex_lock( &p_owner->lock );
1238 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1240 p_owner->cc.pb_present[i] |= pb_present[i];
1241 if( p_owner->cc.pp_decoder[i] )
1245 for( i = 0; i < 4; i++ )
1247 if( !p_owner->cc.pp_decoder[i] )
1250 if( i_cc_decoder > 1 )
1251 DecoderProcess( p_owner->cc.pp_decoder[i], block_Duplicate( p_cc ) );
1253 DecoderProcess( p_owner->cc.pp_decoder[i], p_cc );
1256 vlc_mutex_unlock( &p_owner->lock );
1259 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1260 int *pi_played_sum, int *pi_lost_sum )
1262 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1263 vout_thread_t *p_vout = p_owner->p_vout;
1264 bool b_first_buffered;
1266 if( p_picture->date <= 0 )
1268 msg_Warn( p_vout, "non-dated video buffer received" );
1270 vout_DropPicture( p_vout, p_picture );
1275 vlc_mutex_lock( &p_owner->lock );
1277 if( ( p_owner->b_buffering && !p_owner->buffer.b_first ) || p_owner->buffer.p_picture )
1279 p_picture->p_next = NULL;
1281 *p_owner->buffer.pp_picture_next = p_picture;
1282 p_owner->buffer.pp_picture_next = &p_picture->p_next;
1284 p_owner->buffer.i_count++;
1285 if( p_owner->buffer.i_count > DECODER_MAX_BUFFERING_COUNT ||
1286 p_picture->date - p_owner->buffer.p_picture->date > DECODER_MAX_BUFFERING_VIDEO_DURATION )
1288 p_owner->buffer.b_full = true;
1289 vlc_cond_signal( &p_owner->wait );
1292 b_first_buffered = p_owner->buffer.p_picture != NULL;
1294 for( ;; b_first_buffered = false )
1296 bool b_has_more = false;
1300 DecoderWaitUnblock( p_dec, &b_reject );
1302 if( p_owner->b_buffering && !p_owner->buffer.b_first )
1304 vlc_mutex_unlock( &p_owner->lock );
1307 bool b_buffering_first = p_owner->b_buffering;
1310 if( p_owner->buffer.p_picture )
1312 p_picture = p_owner->buffer.p_picture;
1314 p_owner->buffer.p_picture = p_picture->p_next;
1315 p_owner->buffer.i_count--;
1317 b_has_more = p_owner->buffer.p_picture != NULL;
1319 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1323 int i_rate = INPUT_RATE_DEFAULT;
1326 if( b_buffering_first )
1328 assert( p_owner->buffer.b_first );
1329 assert( !p_owner->buffer.i_count );
1330 msg_Dbg( p_dec, "Received first picture" );
1331 p_owner->buffer.b_first = false;
1332 p_picture->b_force = true;
1334 if( p_owner->p_clock )
1335 i_rate = input_clock_GetRate( p_owner->p_clock );
1337 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1338 &i_rate, &i_delay, false );
1340 vlc_mutex_unlock( &p_owner->lock );
1343 const mtime_t i_max_date = mdate() + i_delay + DECODER_BOGUS_VIDEO_DELAY;
1345 if( !p_picture->b_force && ( p_picture->date <= 0 || p_picture->date >= i_max_date ) )
1350 if( i_rate != p_owner->i_last_rate || b_first_buffered )
1352 /* Be sure to not display old picture after our own */
1353 vout_Flush( p_vout, p_picture->date );
1354 p_owner->i_last_rate = i_rate;
1356 vout_DisplayPicture( p_vout, p_picture );
1360 if( p_picture->date <= 0 )
1362 msg_Warn( p_vout, "non-dated video buffer received" );
1366 msg_Warn( p_vout, "early picture skipped (%"PRId64")",
1367 p_picture->date - mdate() );
1370 vout_DropPicture( p_vout, p_picture );
1374 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1376 *pi_played_sum += i_tmp_display;
1377 *pi_lost_sum += i_tmp_lost;
1379 if( !b_has_more || b_buffering_first )
1382 vlc_mutex_lock( &p_owner->lock );
1383 if( !p_owner->buffer.p_picture )
1385 vlc_mutex_unlock( &p_owner->lock );
1391 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1393 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1394 input_thread_t *p_input = p_owner->p_input;
1398 int i_displayed = 0;
1400 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1402 vout_thread_t *p_vout = p_owner->p_vout;
1405 /* It prevent freezing VLC in case of broken decoder */
1406 vout_DropPicture( p_vout, p_pic );
1408 block_Release( p_block );
1414 if( p_pic->date < p_owner->i_preroll_end )
1416 vout_DropPicture( p_vout, p_pic );
1420 if( p_owner->i_preroll_end > 0 )
1422 msg_Dbg( p_dec, "End of video preroll" );
1424 vout_Flush( p_vout, 1 );
1426 p_owner->i_preroll_end = -1;
1429 if( p_dec->pf_get_cc &&
1430 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1431 DecoderGetCc( p_dec, p_dec );
1433 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1435 if( i_decoded > 0 || i_lost > 0 || i_displayed > 0 )
1437 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1439 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video,
1441 stats_UpdateInteger( p_dec, p_input->p->counters.p_lost_pictures,
1444 stats_UpdateInteger( p_dec, p_input->p->counters.p_displayed_pictures,
1447 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1451 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic,
1454 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1455 vout_thread_t *p_vout = p_owner->p_spu_vout;
1458 if( p_subpic->i_start <= 0 )
1460 msg_Warn( p_dec, "non-dated spu buffer received" );
1461 subpicture_Delete( p_subpic );
1466 vlc_mutex_lock( &p_owner->lock );
1468 if( p_owner->b_buffering || p_owner->buffer.p_subpic )
1470 p_subpic->p_next = NULL;
1472 *p_owner->buffer.pp_subpic_next = p_subpic;
1473 p_owner->buffer.pp_subpic_next = &p_subpic->p_next;
1475 p_owner->buffer.i_count++;
1476 /* XXX it is important to be full after the first one */
1477 if( p_owner->buffer.i_count > 0 )
1479 p_owner->buffer.b_full = true;
1480 vlc_cond_signal( &p_owner->wait );
1486 bool b_has_more = false;
1488 DecoderWaitUnblock( p_dec, &b_reject );
1490 if( p_owner->b_buffering )
1492 vlc_mutex_unlock( &p_owner->lock );
1497 if( p_owner->buffer.p_subpic )
1499 p_subpic = p_owner->buffer.p_subpic;
1501 p_owner->buffer.p_subpic = p_subpic->p_next;
1502 p_owner->buffer.i_count--;
1504 b_has_more = p_owner->buffer.p_subpic != NULL;
1506 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1510 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1511 NULL, NULL, b_telx );
1513 vlc_mutex_unlock( &p_owner->lock );
1516 spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
1518 subpicture_Delete( p_subpic );
1522 vlc_mutex_lock( &p_owner->lock );
1523 if( !p_owner->buffer.p_subpic )
1525 vlc_mutex_unlock( &p_owner->lock );
1531 static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
1534 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1536 assert( p_owner->p_clock );
1537 assert( !p_sout_block->p_next );
1539 vlc_mutex_lock( &p_owner->lock );
1541 if( p_owner->b_buffering || p_owner->buffer.p_block )
1543 block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
1545 p_owner->buffer.i_count++;
1546 /* XXX it is important to be full after the first one */
1547 if( p_owner->buffer.i_count > 0 )
1549 p_owner->buffer.b_full = true;
1550 vlc_cond_signal( &p_owner->wait );
1556 bool b_has_more = false;
1558 DecoderWaitUnblock( p_dec, &b_reject );
1560 if( p_owner->b_buffering )
1562 vlc_mutex_unlock( &p_owner->lock );
1567 if( p_owner->buffer.p_block )
1569 p_sout_block = p_owner->buffer.p_block;
1571 p_owner->buffer.p_block = p_sout_block->p_next;
1572 p_owner->buffer.i_count--;
1574 b_has_more = p_owner->buffer.p_block != NULL;
1576 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1578 p_sout_block->p_next = NULL;
1580 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1581 &p_sout_block->i_length,
1582 &p_sout_block->i_rate, NULL, b_telx );
1584 vlc_mutex_unlock( &p_owner->lock );
1587 sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1589 block_Release( p_sout_block );
1593 vlc_mutex_lock( &p_owner->lock );
1594 if( !p_owner->buffer.p_block )
1596 vlc_mutex_unlock( &p_owner->lock );
1603 static void DecoderFlushBuffering( decoder_t *p_dec )
1605 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1607 vlc_assert_locked( &p_owner->lock );
1609 while( p_owner->buffer.p_picture )
1611 picture_t *p_picture = p_owner->buffer.p_picture;
1613 p_owner->buffer.p_picture = p_picture->p_next;
1614 p_owner->buffer.i_count--;
1616 if( p_owner->p_vout )
1617 vout_DropPicture( p_owner->p_vout, p_picture );
1619 if( !p_owner->buffer.p_picture )
1620 p_owner->buffer.pp_picture_next = &p_owner->buffer.p_picture;
1622 while( p_owner->buffer.p_audio )
1624 aout_buffer_t *p_audio = p_owner->buffer.p_audio;
1626 p_owner->buffer.p_audio = p_audio->p_next;
1627 p_owner->buffer.i_count--;
1629 aout_BufferFree( p_audio );
1631 if( !p_owner->buffer.p_audio )
1632 p_owner->buffer.pp_audio_next = &p_owner->buffer.p_audio;
1634 while( p_owner->buffer.p_subpic )
1636 subpicture_t *p_subpic = p_owner->buffer.p_subpic;
1638 p_owner->buffer.p_subpic = p_subpic->p_next;
1639 p_owner->buffer.i_count--;
1641 subpicture_Delete( p_subpic );
1643 if( !p_owner->buffer.p_subpic )
1644 p_owner->buffer.pp_subpic_next = &p_owner->buffer.p_subpic;
1646 if( p_owner->buffer.p_block )
1648 block_ChainRelease( p_owner->buffer.p_block );
1650 p_owner->buffer.i_count = 0;
1651 p_owner->buffer.p_block = NULL;
1652 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
1656 /* This function process a block for sout
1658 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1660 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1661 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1662 block_t *p_sout_block;
1664 while( ( p_sout_block =
1665 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1667 if( !p_owner->p_sout_input )
1669 es_format_Copy( &p_owner->sout, &p_dec->fmt_out );
1671 p_owner->sout.i_group = p_dec->fmt_in.i_group;
1672 p_owner->sout.i_id = p_dec->fmt_in.i_id;
1673 if( p_dec->fmt_in.psz_language )
1675 if( p_owner->sout.psz_language )
1676 free( p_owner->sout.psz_language );
1677 p_owner->sout.psz_language =
1678 strdup( p_dec->fmt_in.psz_language );
1681 p_owner->p_sout_input =
1682 sout_InputNew( p_owner->p_sout,
1685 if( p_owner->p_sout_input == NULL )
1687 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1688 (char *)&p_owner->sout.i_codec );
1689 p_dec->b_error = true;
1691 while( p_sout_block )
1693 block_t *p_next = p_sout_block->p_next;
1694 block_Release( p_sout_block );
1695 p_sout_block = p_next;
1701 while( p_sout_block )
1703 block_t *p_next = p_sout_block->p_next;
1705 p_sout_block->p_next = NULL;
1707 DecoderPlaySout( p_dec, p_sout_block, b_telx );
1709 p_sout_block = p_next;
1712 /* For now it's enough, as only sout impact on this flag */
1713 if( p_owner->p_sout->i_out_pace_nocontrol > 0 &&
1714 p_owner->p_input->p->b_out_pace_control )
1716 msg_Dbg( p_dec, "switching to sync mode" );
1717 p_owner->p_input->p->b_out_pace_control = false;
1719 else if( p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
1720 !p_owner->p_input->p->b_out_pace_control )
1722 msg_Dbg( p_dec, "switching to async mode" );
1723 p_owner->p_input->p->b_out_pace_control = true;
1728 /* This function process a video block
1730 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1732 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1734 if( p_owner->p_packetizer )
1736 block_t *p_packetized_block;
1737 decoder_t *p_packetizer = p_owner->p_packetizer;
1739 while( (p_packetized_block =
1740 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1742 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1744 es_format_Clean( &p_dec->fmt_in );
1745 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1747 if( p_packetizer->pf_get_cc )
1748 DecoderGetCc( p_dec, p_packetizer );
1750 while( p_packetized_block )
1752 block_t *p_next = p_packetized_block->p_next;
1753 p_packetized_block->p_next = NULL;
1755 DecoderDecodeVideo( p_dec, p_packetized_block );
1757 p_packetized_block = p_next;
1763 DecoderDecodeVideo( p_dec, p_block );
1766 if( b_flush && p_owner->p_vout )
1767 vout_Flush( p_owner->p_vout, 1 );
1770 /* This function process a audio block
1772 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1774 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1776 if( p_owner->p_packetizer )
1778 block_t *p_packetized_block;
1779 decoder_t *p_packetizer = p_owner->p_packetizer;
1781 while( (p_packetized_block =
1782 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1784 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1786 es_format_Clean( &p_dec->fmt_in );
1787 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1790 while( p_packetized_block )
1792 block_t *p_next = p_packetized_block->p_next;
1793 p_packetized_block->p_next = NULL;
1795 DecoderDecodeAudio( p_dec, p_packetized_block );
1797 p_packetized_block = p_next;
1803 DecoderDecodeAudio( p_dec, p_block );
1806 if( b_flush && p_owner->p_aout && p_owner->p_aout_input )
1807 aout_DecFlush( p_owner->p_aout, p_owner->p_aout_input );
1810 /* This function process a subtitle block
1812 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1814 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1815 const bool b_telx = p_dec->fmt_in.i_codec == VLC_FOURCC('t','e','l','x');
1817 input_thread_t *p_input = p_owner->p_input;
1818 vout_thread_t *p_vout;
1819 subpicture_t *p_spu;
1821 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1823 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1824 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1825 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1827 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1828 if( p_vout && p_owner->p_spu_vout == p_vout )
1830 /* Preroll does not work very well with subtitle */
1831 if( p_spu->i_start > 0 &&
1832 p_spu->i_start < p_owner->i_preroll_end &&
1833 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_owner->i_preroll_end ) )
1835 subpicture_Delete( p_spu );
1839 DecoderPlaySpu( p_dec, p_spu, b_telx );
1844 subpicture_Delete( p_spu );
1847 vlc_object_release( p_vout );
1850 if( b_flush && p_owner->p_spu_vout )
1852 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1854 if( p_vout && p_owner->p_spu_vout == p_vout )
1855 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1856 p_owner->i_spu_channel );
1859 vlc_object_release( p_vout );
1866 * \param p_dec the decoder object
1867 * \param p_block the block to decode
1868 * \return VLC_SUCCESS or an error code
1870 static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
1872 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1873 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1875 if( p_block && p_block->i_buffer <= 0 )
1877 assert( !b_flush_request );
1878 block_Release( p_block );
1882 int canc = vlc_savecancel();
1884 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
1887 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1889 DecoderProcessSout( p_dec, p_block );
1894 bool b_flush = false;
1898 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1899 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1901 b_flush = !b_flushing && b_flush_request;
1903 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1906 if( p_dec->fmt_in.i_cat == AUDIO_ES )
1908 DecoderProcessAudio( p_dec, p_block, b_flush );
1910 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1912 DecoderProcessVideo( p_dec, p_block, b_flush );
1914 else if( p_dec->fmt_in.i_cat == SPU_ES )
1916 DecoderProcessSpu( p_dec, p_block, b_flush );
1920 msg_Err( p_dec, "unknown ES format" );
1921 p_dec->b_error = true;
1926 if( b_flush_request )
1928 vlc_mutex_lock( &p_owner->lock );
1929 DecoderFlushBuffering( p_dec );
1930 vlc_mutex_unlock( &p_owner->lock );
1932 DecoderSignalFlushed( p_dec );
1934 vlc_restorecancel( canc );
1936 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1940 * Destroys a decoder object
1942 * \param p_dec the decoder object
1945 static void DeleteDecoder( decoder_t * p_dec )
1947 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1949 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1950 (char*)&p_dec->fmt_in.i_codec,
1951 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1953 /* Free all packets still in the decoder fifo. */
1954 block_FifoEmpty( p_owner->p_fifo );
1955 block_FifoRelease( p_owner->p_fifo );
1958 vlc_mutex_lock( &p_owner->lock );
1959 DecoderFlushBuffering( p_dec );
1960 vlc_mutex_unlock( &p_owner->lock );
1963 if( p_owner->p_aout_input )
1964 aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
1965 if( p_owner->p_aout )
1967 vlc_object_release( p_owner->p_aout );
1968 p_owner->p_aout = NULL;
1970 if( p_owner->p_vout )
1972 /* Hack to make sure all the the pictures are freed by the decoder */
1973 vout_FixLeaks( p_owner->p_vout, true );
1975 /* We are about to die. Reattach video output to p_vlc. */
1976 vout_Request( p_dec, p_owner->p_vout, NULL );
1977 input_SendEventVout( p_owner->p_input );
1981 if( p_owner->p_sout_input )
1983 sout_InputDelete( p_owner->p_sout_input );
1984 es_format_Clean( &p_owner->sout );
1988 if( p_dec->fmt_in.i_cat == SPU_ES )
1990 vout_thread_t *p_vout;
1992 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1993 if( p_vout && p_owner->p_spu_vout == p_vout )
1995 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1996 p_owner->i_spu_channel );
1997 vlc_object_release( p_vout );
2001 es_format_Clean( &p_dec->fmt_in );
2002 es_format_Clean( &p_dec->fmt_out );
2004 if( p_owner->p_packetizer )
2006 module_unneed( p_owner->p_packetizer,
2007 p_owner->p_packetizer->p_module );
2008 es_format_Clean( &p_owner->p_packetizer->fmt_in );
2009 es_format_Clean( &p_owner->p_packetizer->fmt_out );
2010 vlc_object_detach( p_owner->p_packetizer );
2011 vlc_object_release( p_owner->p_packetizer );
2014 vlc_cond_destroy( &p_owner->wait );
2015 vlc_mutex_destroy( &p_owner->lock );
2017 vlc_object_detach( p_dec );
2022 /*****************************************************************************
2023 * Buffers allocation callbacks for the decoders
2024 *****************************************************************************/
2025 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
2027 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2028 aout_buffer_t *p_buffer;
2030 if( p_owner->p_aout_input != NULL &&
2031 ( p_dec->fmt_out.audio.i_rate != p_owner->audio.i_rate ||
2032 p_dec->fmt_out.audio.i_original_channels !=
2033 p_owner->audio.i_original_channels ||
2034 p_dec->fmt_out.audio.i_bytes_per_frame !=
2035 p_owner->audio.i_bytes_per_frame ) )
2037 aout_input_t *p_aout_input = p_owner->p_aout_input;
2039 /* Parameters changed, restart the aout */
2040 vlc_mutex_lock( &p_owner->lock );
2042 DecoderFlushBuffering( p_dec );
2044 p_owner->p_aout_input = NULL;
2045 aout_DecDelete( p_owner->p_aout, p_aout_input );
2047 vlc_mutex_unlock( &p_owner->lock );
2050 if( p_owner->p_aout_input == NULL )
2052 const int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
2053 audio_sample_format_t format;
2054 aout_input_t *p_aout_input;
2055 aout_instance_t *p_aout;
2057 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
2058 p_owner->audio = p_dec->fmt_out.audio;
2060 memcpy( &format, &p_owner->audio, sizeof( audio_sample_format_t ) );
2061 if( i_force_dolby &&
2062 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
2063 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
2065 if( i_force_dolby == 1 )
2067 format.i_original_channels = format.i_original_channels |
2068 AOUT_CHAN_DOLBYSTEREO;
2070 else /* i_force_dolby == 2 */
2072 format.i_original_channels = format.i_original_channels &
2073 ~AOUT_CHAN_DOLBYSTEREO;
2077 p_aout = p_owner->p_aout;
2078 p_aout_input = aout_DecNew( p_dec, &p_aout,
2079 &format, &p_dec->fmt_out.audio_replay_gain );
2081 vlc_mutex_lock( &p_owner->lock );
2082 p_owner->p_aout = p_aout;
2083 p_owner->p_aout_input = p_aout_input;
2084 vlc_mutex_unlock( &p_owner->lock );
2086 if( p_owner->p_aout_input == NULL )
2088 msg_Err( p_dec, "failed to create audio output" );
2089 p_dec->b_error = true;
2092 p_dec->fmt_out.audio.i_bytes_per_frame =
2093 p_owner->audio.i_bytes_per_frame;
2096 p_buffer = aout_DecNewBuffer( p_owner->p_aout_input, i_samples );
2101 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
2103 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2105 aout_DecDeleteBuffer( p_owner->p_aout,
2106 p_owner->p_aout_input, p_buffer );
2110 int vout_CountPictureAvailable( vout_thread_t *p_vout );
2112 static picture_t *vout_new_buffer( decoder_t *p_dec )
2114 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2116 if( p_owner->p_vout == NULL ||
2117 p_dec->fmt_out.video.i_width != p_owner->video.i_width ||
2118 p_dec->fmt_out.video.i_height != p_owner->video.i_height ||
2119 p_dec->fmt_out.video.i_chroma != p_owner->video.i_chroma ||
2120 p_dec->fmt_out.video.i_aspect != p_owner->video.i_aspect )
2122 vout_thread_t *p_vout;
2124 if( !p_dec->fmt_out.video.i_width ||
2125 !p_dec->fmt_out.video.i_height )
2127 /* Can't create a new vout without display size */
2131 if( !p_dec->fmt_out.video.i_visible_width ||
2132 !p_dec->fmt_out.video.i_visible_height )
2134 if( p_dec->fmt_in.video.i_visible_width &&
2135 p_dec->fmt_in.video.i_visible_height )
2137 p_dec->fmt_out.video.i_visible_width =
2138 p_dec->fmt_in.video.i_visible_width;
2139 p_dec->fmt_out.video.i_visible_height =
2140 p_dec->fmt_in.video.i_visible_height;
2144 p_dec->fmt_out.video.i_visible_width =
2145 p_dec->fmt_out.video.i_width;
2146 p_dec->fmt_out.video.i_visible_height =
2147 p_dec->fmt_out.video.i_height;
2151 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
2152 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2154 p_dec->fmt_out.video.i_visible_height = 1080;
2155 p_dec->fmt_out.video.i_sar_num *= 135;
2156 p_dec->fmt_out.video.i_sar_den *= 136;
2157 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2160 if( !p_dec->fmt_out.video.i_sar_num ||
2161 !p_dec->fmt_out.video.i_sar_den )
2163 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
2164 p_dec->fmt_out.video.i_visible_height;
2166 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
2167 p_dec->fmt_out.video.i_visible_width;
2170 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
2171 &p_dec->fmt_out.video.i_sar_den,
2172 p_dec->fmt_out.video.i_sar_num,
2173 p_dec->fmt_out.video.i_sar_den, 50000 );
2175 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2176 p_owner->video = p_dec->fmt_out.video;
2178 vlc_mutex_lock( &p_owner->lock );
2180 DecoderFlushBuffering( p_dec );
2182 p_vout = p_owner->p_vout;
2183 p_owner->p_vout = NULL;
2184 vlc_mutex_unlock( &p_owner->lock );
2186 p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
2188 vlc_mutex_lock( &p_owner->lock );
2189 p_owner->p_vout = p_vout;
2190 vlc_mutex_unlock( &p_owner->lock );
2192 input_SendEventVout( p_owner->p_input );
2193 if( p_vout == NULL )
2195 msg_Err( p_dec, "failed to create video output" );
2196 p_dec->b_error = true;
2200 if( p_owner->video.i_rmask )
2201 p_owner->p_vout->render.i_rmask = p_owner->video.i_rmask;
2202 if( p_owner->video.i_gmask )
2203 p_owner->p_vout->render.i_gmask = p_owner->video.i_gmask;
2204 if( p_owner->video.i_bmask )
2205 p_owner->p_vout->render.i_bmask = p_owner->video.i_bmask;
2208 /* Get a new picture
2212 picture_t *p_picture;
2214 if( p_dec->b_die || p_dec->b_error )
2217 /* The video filter chain required that there is always 1 free buffer
2218 * that it will use as temporary one. It will release the temporary
2219 * buffer once its work is done, so this check is safe even if we don't
2220 * lock around both count() and create().
2222 if( vout_CountPictureAvailable( p_owner->p_vout ) >= 2 )
2224 p_picture = vout_CreatePicture( p_owner->p_vout, 0, 0, 0 );
2229 if( DecoderIsFlushing( p_dec ) )
2233 DecoderSignalBuffering( p_dec, true );
2235 /* Check the decoder doesn't leak pictures */
2236 vout_FixLeaks( p_owner->p_vout, false );
2238 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2239 msleep( VOUT_OUTMEM_SLEEP );
2243 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2245 vout_DropPicture( p_dec->p_owner->p_vout, p_pic );
2248 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2250 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
2253 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2255 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
2258 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2260 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2261 vout_thread_t *p_vout = NULL;
2262 subpicture_t *p_subpic;
2263 int i_attempts = 30;
2265 while( i_attempts-- )
2267 if( p_dec->b_die || p_dec->b_error )
2270 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2274 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2279 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2283 if( p_owner->p_spu_vout != p_vout )
2285 vlc_mutex_lock( &p_owner->lock );
2287 DecoderFlushBuffering( p_dec );
2289 vlc_mutex_unlock( &p_owner->lock );
2291 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
2292 &p_owner->i_spu_channel );
2293 p_owner->i_spu_order = 0;
2294 p_owner->p_spu_vout = p_vout;
2297 p_subpic = subpicture_New();
2300 p_subpic->i_channel = p_owner->i_spu_channel;
2301 p_subpic->i_order = p_owner->i_spu_order++;
2302 p_subpic->b_subtitle = true;
2305 vlc_object_release( p_vout );
2310 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2312 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2313 vout_thread_t *p_vout = NULL;
2315 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
2316 if( !p_vout || p_owner->p_spu_vout != p_vout )
2319 vlc_object_release( p_vout );
2320 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2324 subpicture_Delete( p_subpic );
2326 vlc_object_release( p_vout );