1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 VLC authors and VideoLAN
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 it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * 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_dialog.h>
44 #include <vlc_modules.h>
46 #include "audio_output/aout_internal.h"
47 #include "stream_output/stream_output.h"
48 #include "input_internal.h"
54 #include "../video_output/vout_control.h"
56 static decoder_t *CreateDecoder( vlc_object_t *, input_thread_t *,
57 const es_format_t *, bool, input_resource_t *,
58 sout_instance_t *p_sout );
59 static void DeleteDecoder( decoder_t * );
61 static void *DecoderThread( void * );
62 static void DecoderProcess( decoder_t *, block_t * );
63 static void DecoderFlush( decoder_t * );
64 static void DecoderSignalWait( decoder_t * );
66 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
68 /* Buffers allocation callbacks for the decoders */
69 static int vout_update_format( decoder_t * );
70 static picture_t *vout_new_buffer( decoder_t * );
71 static int aout_update_format( decoder_t * );
72 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
74 struct decoder_owner_sys_t
76 int64_t i_preroll_end;
78 input_thread_t *p_input;
79 input_resource_t*p_resource;
80 input_clock_t *p_clock;
83 vout_thread_t *p_spu_vout;
87 sout_instance_t *p_sout;
88 sout_packetizer_input_t *p_sout_input;
92 /* Some decoders require already packetized data (ie. not truncated) */
93 decoder_t *p_packetizer;
96 /* Current format in use by the output */
100 bool b_fmt_description;
101 vlc_meta_t *p_description;
104 block_fifo_t *p_fifo;
106 /* Lock for communication with decoder thread */
108 vlc_cond_t wait_request;
109 vlc_cond_t wait_acknowledge;
111 /* -- These variables need locking on write(only) -- */
112 audio_output_t *p_aout;
114 vout_thread_t *p_vout;
116 /* -- Theses variables need locking on read *and* write -- */
139 decoder_t *pp_decoder[4];
146 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
147 * a bogus PTS and won't be displayed */
148 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
151 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
154 /*****************************************************************************
156 *****************************************************************************/
157 picture_t *decoder_NewPicture( decoder_t *p_decoder )
159 if( decoder_UpdateVideoFormat( p_decoder ) )
162 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
164 msg_Warn( p_decoder, "can't get output picture" );
168 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
170 if( decoder_UpdateAudioFormat( dec ) )
173 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
174 / dec->fmt_out.audio.i_frame_length;
175 block_t *block = block_Alloc( length );
176 if( likely(block != NULL) )
178 block->i_nb_samples = samples;
179 block->i_pts = block->i_length = 0;
184 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
185 const subpicture_updater_t *p_dyn )
187 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
189 msg_Warn( p_decoder, "can't get output subpicture" );
193 /* decoder_GetInputAttachments:
195 int decoder_GetInputAttachments( decoder_t *p_dec,
196 input_attachment_t ***ppp_attachment,
199 if( !p_dec->pf_get_attachments )
202 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
204 /* decoder_GetDisplayDate:
206 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
208 if( !p_dec->pf_get_display_date )
209 return VLC_TS_INVALID;
211 return p_dec->pf_get_display_date( p_dec, i_ts );
213 /* decoder_GetDisplayRate:
215 int decoder_GetDisplayRate( decoder_t *p_dec )
217 if( !p_dec->pf_get_display_rate )
218 return INPUT_RATE_DEFAULT;
220 return p_dec->pf_get_display_rate( p_dec );
223 /* TODO: pass p_sout through p_resource? -- Courmisch */
224 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
225 const es_format_t *fmt, input_clock_t *p_clock,
226 input_resource_t *p_resource,
227 sout_instance_t *p_sout )
229 decoder_t *p_dec = NULL;
230 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
233 /* Create the decoder configuration structure */
234 p_dec = CreateDecoder( p_parent, p_input, fmt,
235 p_sout != NULL, p_resource, p_sout );
238 msg_Err( p_parent, "could not create %s", psz_type );
239 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
240 _("VLC could not open the %s module."),
241 vlc_gettext( psz_type ) );
245 if( !p_dec->p_module )
247 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
249 DeleteDecoder( p_dec );
253 p_dec->p_owner->p_clock = p_clock;
254 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
256 if( p_dec->fmt_out.i_cat == AUDIO_ES )
257 i_priority = VLC_THREAD_PRIORITY_AUDIO;
259 i_priority = VLC_THREAD_PRIORITY_VIDEO;
261 /* Spawn the decoder thread */
262 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
264 msg_Err( p_dec, "cannot spawn decoder thread" );
265 module_unneed( p_dec, p_dec->p_module );
266 DeleteDecoder( p_dec );
275 * Spawns a new decoder thread from the input thread
277 * \param p_input the input thread
278 * \param p_es the es descriptor
279 * \return the spawned decoder object
281 decoder_t *input_DecoderNew( input_thread_t *p_input,
282 es_format_t *fmt, input_clock_t *p_clock,
283 sout_instance_t *p_sout )
285 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
286 p_input->p->p_resource, p_sout );
290 * Spawn a decoder thread outside of the input thread.
292 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
293 input_resource_t *p_resource )
295 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
300 * Kills a decoder thread and waits until it's finished
302 * \param p_input the input thread
303 * \param p_es the es descriptor
306 void input_DecoderDelete( decoder_t *p_dec )
308 decoder_owner_sys_t *p_owner = p_dec->p_owner;
310 vlc_cancel( p_owner->thread );
312 /* Make sure we aren't paused/waiting/decoding anymore */
313 vlc_mutex_lock( &p_owner->lock );
314 p_owner->b_paused = false;
315 p_owner->b_waiting = false;
316 p_owner->b_flushing = true;
317 vlc_cond_signal( &p_owner->wait_request );
318 vlc_mutex_unlock( &p_owner->lock );
320 vlc_join( p_owner->thread, NULL );
322 module_unneed( p_dec, p_dec->p_module );
325 if( p_dec->p_owner->cc.b_supported )
328 for( i = 0; i < 4; i++ )
329 input_DecoderSetCcState( p_dec, false, i );
333 DeleteDecoder( p_dec );
337 * Put a block_t in the decoder's fifo.
338 * Thread-safe w.r.t. the decoder. May be a cancellation point.
340 * \param p_dec the decoder object
341 * \param p_block the data block
343 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
345 decoder_owner_sys_t *p_owner = p_dec->p_owner;
347 vlc_fifo_Lock( p_owner->p_fifo );
350 /* FIXME: ideally we would check the time amount of data
351 * in the FIFO instead of its size. */
352 /* 400 MiB, i.e. ~ 50mb/s for 60s */
353 if( vlc_fifo_GetBytes( p_owner->p_fifo ) > 400*1024*1024 )
355 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
356 "consumed quickly enough), resetting fifo!" );
357 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
361 if( !p_owner->b_waiting )
362 { /* The FIFO is not consumed when waiting, so pacing would deadlock VLC.
363 * Locking is not necessary as b_waiting is only read, not written by
364 * the decoder thread. */
365 while( vlc_fifo_GetCount( p_owner->p_fifo ) >= 10 )
366 vlc_fifo_WaitCond( p_owner->p_fifo, &p_owner->wait_acknowledge );
369 vlc_fifo_QueueUnlocked( p_owner->p_fifo, p_block );
370 vlc_fifo_Unlock( p_owner->p_fifo );
373 bool input_DecoderIsEmpty( decoder_t * p_dec )
375 decoder_owner_sys_t *p_owner = p_dec->p_owner;
376 assert( !p_owner->b_waiting );
378 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
382 vlc_mutex_lock( &p_owner->lock );
383 /* TODO subtitles support */
384 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
385 b_empty = vout_IsEmpty( p_owner->p_vout );
386 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
387 b_empty = aout_DecIsEmpty( p_owner->p_aout );
388 vlc_mutex_unlock( &p_owner->lock );
393 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
395 decoder_owner_sys_t *p_owner = p_dec->p_owner;
398 vlc_mutex_lock( &p_owner->lock );
399 for( i = 0; i < 4; i++ )
400 pb_present[i] = p_owner->cc.pb_present[i];
401 vlc_mutex_unlock( &p_owner->lock );
403 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
405 decoder_owner_sys_t *p_owner = p_dec->p_owner;
407 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
409 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
414 static const vlc_fourcc_t fcc[4] = {
415 VLC_FOURCC('c', 'c', '1', ' '),
416 VLC_FOURCC('c', 'c', '2', ' '),
417 VLC_FOURCC('c', 'c', '3', ' '),
418 VLC_FOURCC('c', 'c', '4', ' '),
423 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
424 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
425 p_dec->p_owner->p_clock, p_owner->p_sout );
428 msg_Err( p_dec, "could not create decoder" );
429 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
430 _("VLC could not open the decoder module.") );
433 else if( !p_cc->p_module )
435 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
436 input_DecoderDelete(p_cc);
439 p_cc->p_owner->p_clock = p_owner->p_clock;
441 vlc_mutex_lock( &p_owner->lock );
442 p_owner->cc.pp_decoder[i_channel] = p_cc;
443 vlc_mutex_unlock( &p_owner->lock );
449 vlc_mutex_lock( &p_owner->lock );
450 p_cc = p_owner->cc.pp_decoder[i_channel];
451 p_owner->cc.pp_decoder[i_channel] = NULL;
452 vlc_mutex_unlock( &p_owner->lock );
455 input_DecoderDelete(p_cc);
459 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
461 decoder_owner_sys_t *p_owner = p_dec->p_owner;
464 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
467 vlc_mutex_lock( &p_owner->lock );
468 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
469 vlc_mutex_unlock( &p_owner->lock );
473 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
475 decoder_owner_sys_t *p_owner = p_dec->p_owner;
477 vlc_mutex_lock( &p_owner->lock );
478 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
479 * while the input is paused (e.g. add sub file), then b_paused is
480 * (incorrectly) false. */
481 if( likely(p_owner->b_paused != b_paused) ) {
482 p_owner->b_paused = b_paused;
483 p_owner->pause.i_date = i_date;
484 p_owner->pause.i_ignore = 0;
485 vlc_cond_signal( &p_owner->wait_request );
487 /* XXX only audio and video output have to be paused.
488 * - for sout it is useless
489 * - for subs, it is done by the vout
491 if( p_owner->fmt.i_cat == AUDIO_ES )
493 if( p_owner->p_aout )
494 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
496 else if( p_owner->fmt.i_cat == VIDEO_ES )
498 if( p_owner->p_vout )
499 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
502 vlc_mutex_unlock( &p_owner->lock );
505 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
507 decoder_owner_sys_t *p_owner = p_dec->p_owner;
509 vlc_mutex_lock( &p_owner->lock );
510 p_owner->i_ts_delay = i_delay;
511 vlc_mutex_unlock( &p_owner->lock );
515 * Requests that the decoder immediately discard all pending buffers.
516 * This is useful at end of stream, when seeking or when deselecting a stream.
518 void input_DecoderFlush( decoder_t *p_dec )
520 decoder_owner_sys_t *p_owner = p_dec->p_owner;
522 vlc_mutex_lock( &p_owner->lock );
523 DecoderFlush( p_dec );
524 vlc_mutex_unlock( &p_owner->lock );
527 void input_DecoderStartWait( decoder_t *p_dec )
529 decoder_owner_sys_t *p_owner = p_dec->p_owner;
531 assert( !p_owner->b_waiting );
533 vlc_mutex_lock( &p_owner->lock );
534 p_owner->b_first = true;
535 p_owner->b_has_data = false;
536 p_owner->b_waiting = true;
537 vlc_cond_signal( &p_owner->wait_request );
538 vlc_mutex_unlock( &p_owner->lock );
541 void input_DecoderStopWait( decoder_t *p_dec )
543 decoder_owner_sys_t *p_owner = p_dec->p_owner;
545 assert( p_owner->b_waiting );
547 vlc_mutex_lock( &p_owner->lock );
548 p_owner->b_waiting = false;
549 vlc_cond_signal( &p_owner->wait_request );
550 vlc_mutex_unlock( &p_owner->lock );
553 void input_DecoderWait( decoder_t *p_dec )
555 decoder_owner_sys_t *p_owner = p_dec->p_owner;
557 assert( p_owner->b_waiting );
559 vlc_mutex_lock( &p_owner->lock );
560 while( !p_owner->b_has_data )
562 vlc_fifo_Lock( p_owner->p_fifo );
563 p_owner->b_woken = true;
564 vlc_fifo_Signal( p_owner->p_fifo );
565 vlc_fifo_Unlock( p_owner->p_fifo );
566 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
568 vlc_mutex_unlock( &p_owner->lock );
571 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
573 decoder_owner_sys_t *p_owner = p_dec->p_owner;
577 vlc_mutex_lock( &p_owner->lock );
578 if( p_owner->fmt.i_cat == VIDEO_ES )
580 if( p_owner->b_paused && p_owner->p_vout )
582 vout_NextPicture( p_owner->p_vout, pi_duration );
583 p_owner->pause.i_ignore++;
584 vlc_cond_signal( &p_owner->wait_request );
589 /* TODO subtitle should not be flushed */
590 p_owner->b_waiting = false;
591 DecoderFlush( p_dec );
593 vlc_mutex_unlock( &p_owner->lock );
596 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
598 decoder_owner_sys_t *p_owner = p_dec->p_owner;
601 vlc_mutex_lock( &p_owner->lock );
602 b_changed = p_owner->b_fmt_description;
606 es_format_Copy( p_fmt, &p_owner->fmt );
611 if( p_owner->p_description )
613 *pp_meta = vlc_meta_New();
615 vlc_meta_Merge( *pp_meta, p_owner->p_description );
618 p_owner->b_fmt_description = false;
620 vlc_mutex_unlock( &p_owner->lock );
624 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
626 decoder_owner_sys_t *p_owner = p_dec->p_owner;
628 return block_FifoSize( p_owner->p_fifo );
631 void input_DecoderGetObjects( decoder_t *p_dec,
632 vout_thread_t **pp_vout, audio_output_t **pp_aout )
634 decoder_owner_sys_t *p_owner = p_dec->p_owner;
636 vlc_mutex_lock( &p_owner->lock );
638 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
640 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
641 vlc_mutex_unlock( &p_owner->lock );
644 /*****************************************************************************
646 *****************************************************************************/
647 static int DecoderGetInputAttachments( decoder_t *p_dec,
648 input_attachment_t ***ppp_attachment,
651 input_thread_t *p_input = p_dec->p_owner->p_input;
653 if( unlikely(p_input == NULL) )
655 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
656 ppp_attachment, pi_attachment );
658 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
660 decoder_owner_sys_t *p_owner = p_dec->p_owner;
662 vlc_mutex_lock( &p_owner->lock );
663 if( p_owner->b_waiting || p_owner->b_paused )
664 i_ts = VLC_TS_INVALID;
665 vlc_mutex_unlock( &p_owner->lock );
667 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
670 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
671 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
672 return VLC_TS_INVALID;
677 static int DecoderGetDisplayRate( decoder_t *p_dec )
679 decoder_owner_sys_t *p_owner = p_dec->p_owner;
681 if( !p_owner->p_clock )
682 return INPUT_RATE_DEFAULT;
683 return input_clock_GetRate( p_owner->p_clock );
687 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
689 if (codec != VLC_FOURCC('u','n','d','f')) {
690 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
692 desc = N_("No description for this codec");
693 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
694 dialog_Fatal( p_dec, _("Codec not supported"),
695 _("VLC could not decode the format \"%4.4s\" (%s)"),
696 (char*)&codec, desc );
698 msg_Err( p_dec, "could not identify codec" );
699 dialog_Fatal( p_dec, _("Unidentified codec"),
700 _("VLC could not identify the audio or video codec" ) );
706 * Create a decoder object
708 * \param p_input the input thread
709 * \param p_es the es descriptor
710 * \param b_packetizer instead of a decoder
711 * \return the decoder object
713 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
714 input_thread_t *p_input,
715 const es_format_t *fmt, bool b_packetizer,
716 input_resource_t *p_resource,
717 sout_instance_t *p_sout )
720 decoder_owner_sys_t *p_owner;
721 es_format_t null_es_format;
723 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
727 p_dec->pf_decode_audio = NULL;
728 p_dec->pf_decode_video = NULL;
729 p_dec->pf_decode_sub = NULL;
730 p_dec->pf_get_cc = NULL;
731 p_dec->pf_packetize = NULL;
733 /* Initialize the decoder */
734 p_dec->p_module = NULL;
736 memset( &null_es_format, 0, sizeof(es_format_t) );
737 es_format_Copy( &p_dec->fmt_in, fmt );
738 es_format_Copy( &p_dec->fmt_out, &null_es_format );
740 p_dec->p_description = NULL;
742 /* Allocate our private structure for the decoder */
743 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
744 if( unlikely(p_owner == NULL) )
746 vlc_object_release( p_dec );
749 p_owner->i_preroll_end = VLC_TS_INVALID;
750 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
751 p_owner->p_input = p_input;
752 p_owner->p_resource = p_resource;
753 p_owner->p_aout = NULL;
754 p_owner->p_vout = NULL;
755 p_owner->p_spu_vout = NULL;
756 p_owner->i_spu_channel = 0;
757 p_owner->i_spu_order = 0;
758 p_owner->p_sout = p_sout;
759 p_owner->p_sout_input = NULL;
760 p_owner->p_packetizer = NULL;
761 p_owner->b_packetizer = b_packetizer;
762 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
765 p_owner->b_woken = false;
766 p_owner->p_fifo = block_FifoNew();
767 if( unlikely(p_owner->p_fifo == NULL) )
770 vlc_object_release( p_dec );
774 /* Set buffers allocation callbacks for the decoders */
775 p_dec->pf_aout_format_update = aout_update_format;
776 p_dec->pf_vout_format_update = vout_update_format;
777 p_dec->pf_vout_buffer_new = vout_new_buffer;
778 p_dec->pf_spu_buffer_new = spu_new_buffer;
780 p_dec->pf_get_attachments = DecoderGetInputAttachments;
781 p_dec->pf_get_display_date = DecoderGetDisplayDate;
782 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
784 /* Find a suitable decoder/packetizer module */
786 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
788 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
790 /* Check if decoder requires already packetized data */
792 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
794 p_owner->p_packetizer =
795 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
796 if( p_owner->p_packetizer )
798 es_format_Copy( &p_owner->p_packetizer->fmt_in,
801 es_format_Copy( &p_owner->p_packetizer->fmt_out,
804 p_owner->p_packetizer->p_module =
805 module_need( p_owner->p_packetizer,
806 "packetizer", "$packetizer", false );
808 if( !p_owner->p_packetizer->p_module )
810 es_format_Clean( &p_owner->p_packetizer->fmt_in );
811 vlc_object_release( p_owner->p_packetizer );
812 p_owner->p_packetizer = NULL;
817 /* Copy ourself the input replay gain */
818 if( fmt->i_cat == AUDIO_ES )
820 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
822 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
824 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
825 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
827 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
829 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
830 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
836 vlc_mutex_init( &p_owner->lock );
837 vlc_cond_init( &p_owner->wait_request );
838 vlc_cond_init( &p_owner->wait_acknowledge );
840 p_owner->b_fmt_description = false;
841 p_owner->p_description = NULL;
843 p_owner->b_paused = false;
844 p_owner->pause.i_date = VLC_TS_INVALID;
845 p_owner->pause.i_ignore = 0;
847 p_owner->b_waiting = false;
848 p_owner->b_first = true;
849 p_owner->b_has_data = false;
851 p_owner->b_flushing = false;
854 p_owner->cc.b_supported = false;
857 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
858 p_owner->cc.b_supported = true;
859 if( p_dec->pf_get_cc )
860 p_owner->cc.b_supported = true;
863 for( unsigned i = 0; i < 4; i++ )
865 p_owner->cc.pb_present[i] = false;
866 p_owner->cc.pp_decoder[i] = NULL;
868 p_owner->i_ts_delay = 0;
873 * The decoding main loop
875 * \param p_dec the decoder
877 static void *DecoderThread( void *p_data )
879 decoder_t *p_dec = (decoder_t *)p_data;
880 decoder_owner_sys_t *p_owner = p_dec->p_owner;
882 /* The decoder's main loop */
887 vlc_fifo_Lock( p_owner->p_fifo );
888 vlc_fifo_CleanupPush( p_owner->p_fifo );
890 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
892 if( p_owner->b_woken )
894 vlc_fifo_Wait( p_owner->p_fifo );
895 /* Make sure there is no cancellation point other than this one^^.
896 * If you need one, be sure to push cleanup of p_block. */
899 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
900 if( p_block != NULL )
901 vlc_cond_signal( &p_owner->wait_acknowledge );
903 p_owner->b_woken = false;
906 if( p_block == NULL || p_block->i_flags & BLOCK_FLAG_CORE_EOS )
907 DecoderSignalWait( p_dec );
911 int canc = vlc_savecancel();
913 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
915 /* calling DecoderProcess() with NULL block will make
916 * decoders/packetizers flush their buffers */
917 block_Release( p_block );
921 DecoderProcess( p_dec, p_block );
923 vlc_restorecancel( canc );
929 static block_t *DecoderBlockFlushNew()
931 block_t *p_null = block_Alloc( 128 );
935 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
936 BLOCK_FLAG_CORRUPTED |
937 BLOCK_FLAG_CORE_FLUSH;
938 memset( p_null->p_buffer, 0, p_null->i_buffer );
943 static void DecoderFlush( decoder_t *p_dec )
945 decoder_owner_sys_t *p_owner = p_dec->p_owner;
947 vlc_assert_locked( &p_owner->lock );
950 block_FifoEmpty( p_owner->p_fifo );
952 /* Monitor for flush end */
953 p_owner->b_flushing = true;
954 vlc_cond_signal( &p_owner->wait_request );
956 /* Send a special block */
957 block_t *p_null = DecoderBlockFlushNew();
960 input_DecoderDecode( p_dec, p_null, false );
963 while( p_owner->b_flushing )
964 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
967 static void DecoderSignalWait( decoder_t *p_dec )
969 decoder_owner_sys_t *p_owner = p_dec->p_owner;
971 vlc_mutex_lock( &p_owner->lock );
973 if( p_owner->b_waiting )
975 p_owner->b_has_data = true;
976 vlc_cond_signal( &p_owner->wait_acknowledge );
979 vlc_mutex_unlock( &p_owner->lock );
982 static bool DecoderIsFlushing( decoder_t *p_dec )
984 decoder_owner_sys_t *p_owner = p_dec->p_owner;
987 vlc_mutex_lock( &p_owner->lock );
989 b_flushing = p_owner->b_flushing;
991 vlc_mutex_unlock( &p_owner->lock );
996 static bool DecoderWaitUnblock( decoder_t *p_dec )
998 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1000 vlc_assert_locked( &p_owner->lock );
1004 if( p_owner->b_flushing )
1006 if( p_owner->b_paused )
1008 if( p_owner->b_waiting && !p_owner->b_has_data )
1010 if( p_owner->pause.i_ignore > 0 )
1012 p_owner->pause.i_ignore--;
1018 if( !p_owner->b_waiting || !p_owner->b_has_data )
1021 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1024 return p_owner->b_flushing;
1027 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1029 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1030 *pi_preroll = INT64_MAX;
1031 else if( p->i_dts > VLC_TS_INVALID )
1032 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1033 else if( p->i_pts > VLC_TS_INVALID )
1034 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1037 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1038 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1040 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1041 input_clock_t *p_clock = p_owner->p_clock;
1043 vlc_assert_locked( &p_owner->lock );
1045 const mtime_t i_es_delay = p_owner->i_ts_delay;
1050 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1053 if( *pi_ts0 > VLC_TS_INVALID )
1055 *pi_ts0 += i_es_delay;
1056 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1057 *pi_ts1 += i_es_delay;
1058 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1059 if( pi_ts1 != NULL )
1060 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1061 ", %"PRId64"", *pi_ts0, *pi_ts1);
1063 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1064 *pi_ts0 = VLC_TS_INVALID;
1069 i_rate = input_clock_GetRate( p_clock );
1072 /* Do not create ephemere data because of rounding errors */
1073 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1077 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1078 / INPUT_RATE_DEFAULT;
1085 * If *pb_reject, it does nothing, otherwise it waits for the given
1086 * deadline or a flush request (in which case it set *pi_reject to true.
1088 static void DecoderWaitDate( decoder_t *p_dec,
1089 bool *pb_reject, mtime_t i_deadline )
1091 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1093 vlc_assert_locked( &p_owner->lock );
1095 if( *pb_reject || i_deadline < 0 )
1100 if( p_owner->b_flushing )
1106 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1107 i_deadline ) == 0 );
1110 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1111 int *pi_played_sum, int *pi_lost_sum )
1113 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1114 audio_output_t *p_aout = p_owner->p_aout;
1117 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1119 msg_Warn( p_dec, "non-dated audio buffer received" );
1121 block_Release( p_audio );
1126 vlc_mutex_lock( &p_owner->lock );
1128 if( p_audio && p_owner->b_waiting )
1130 p_owner->b_has_data = true;
1131 vlc_cond_signal( &p_owner->wait_acknowledge );
1138 bool b_reject = DecoderWaitUnblock( p_dec );
1140 b_paused = p_owner->b_paused;
1146 int i_rate = INPUT_RATE_DEFAULT;
1148 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1149 &i_rate, AOUT_MAX_ADVANCE_TIME );
1151 if( p_audio->i_pts <= VLC_TS_INVALID
1152 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1153 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1156 DecoderWaitDate( p_dec, &b_reject,
1157 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1159 if( unlikely(p_owner->b_paused != b_paused) )
1160 continue; /* race with input thread? retry... */
1161 if( p_aout == NULL )
1166 assert( !p_owner->b_paused );
1167 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1168 *pi_played_sum += 1;
1169 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1173 msg_Dbg( p_dec, "discarded audio buffer" );
1175 block_Release( p_audio );
1180 vlc_mutex_unlock( &p_owner->lock );
1183 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1185 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1186 block_t *p_aout_buf;
1192 /* Play a NULL block to output buffered frames */
1193 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1195 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1197 if( DecoderIsFlushing( p_dec ) )
1199 /* It prevent freezing VLC in case of broken decoder */
1200 block_Release( p_aout_buf );
1202 block_Release( p_block );
1207 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1208 p_aout_buf->i_pts < p_owner->i_preroll_end )
1210 block_Release( p_aout_buf );
1214 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1216 msg_Dbg( p_dec, "End of audio preroll" );
1217 if( p_owner->p_aout )
1218 aout_DecFlush( p_owner->p_aout );
1220 p_owner->i_preroll_end = VLC_TS_INVALID;
1223 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1226 /* Update ugly stat */
1227 input_thread_t *p_input = p_owner->p_input;
1229 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1231 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1232 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1233 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1234 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1235 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1238 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1240 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1243 bool b_processed = false;
1247 assert( p_dec_cc->pf_get_cc != NULL );
1249 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1250 if( !p_owner->cc.b_supported )
1253 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1257 vlc_mutex_lock( &p_owner->lock );
1258 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1260 p_owner->cc.pb_present[i] |= pb_present[i];
1261 if( p_owner->cc.pp_decoder[i] )
1265 for( i = 0; i < 4; i++ )
1267 if( !p_owner->cc.pp_decoder[i] )
1270 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1271 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1276 vlc_mutex_unlock( &p_owner->lock );
1279 block_Release( p_cc );
1282 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1283 int *pi_played_sum, int *pi_lost_sum )
1285 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1286 vout_thread_t *p_vout = p_owner->p_vout;
1288 if( p_picture->date <= VLC_TS_INVALID )
1290 msg_Warn( p_dec, "non-dated video buffer received" );
1292 picture_Release( p_picture );
1297 vlc_mutex_lock( &p_owner->lock );
1299 if( p_owner->b_waiting && !p_owner->b_first )
1301 p_owner->b_has_data = true;
1302 vlc_cond_signal( &p_owner->wait_acknowledge );
1304 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1306 bool b_reject = DecoderWaitUnblock( p_dec );
1308 if( p_owner->b_waiting )
1310 assert( p_owner->b_first );
1311 msg_Dbg( p_dec, "Received first picture" );
1312 p_owner->b_first = false;
1313 p_picture->b_force = true;
1316 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1317 int i_rate = INPUT_RATE_DEFAULT;
1318 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1319 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1321 vlc_mutex_unlock( &p_owner->lock );
1324 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1329 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1331 /* Be sure to not display old picture after our own */
1332 vout_Flush( p_vout, p_picture->date );
1333 p_owner->i_last_rate = i_rate;
1335 vout_PutPicture( p_vout, p_picture );
1340 msg_Warn( p_dec, "early picture skipped" );
1342 msg_Warn( p_dec, "non-dated video buffer received" );
1345 picture_Release( p_picture );
1349 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1351 *pi_played_sum += i_tmp_display;
1352 *pi_lost_sum += i_tmp_lost;
1355 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1357 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1361 int i_displayed = 0;
1363 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1365 vout_thread_t *p_vout = p_owner->p_vout;
1366 if( DecoderIsFlushing( p_dec ) )
1367 { /* It prevent freezing VLC in case of broken decoder */
1368 picture_Release( p_pic );
1370 block_Release( p_block );
1376 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1378 picture_Release( p_pic );
1382 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1384 msg_Dbg( p_dec, "End of video preroll" );
1386 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1388 p_owner->i_preroll_end = VLC_TS_INVALID;
1391 if( p_dec->pf_get_cc &&
1392 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1393 DecoderGetCc( p_dec, p_dec );
1395 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1398 /* Update ugly stat */
1399 input_thread_t *p_input = p_owner->p_input;
1401 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1403 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1404 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1405 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1406 stats_Update( p_input->p->counters.p_displayed_pictures,
1408 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1412 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1414 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1415 vout_thread_t *p_vout = p_owner->p_spu_vout;
1418 if( p_subpic->i_start <= VLC_TS_INVALID )
1420 msg_Warn( p_dec, "non-dated spu buffer received" );
1421 subpicture_Delete( p_subpic );
1426 vlc_mutex_lock( &p_owner->lock );
1428 if( p_owner->b_waiting )
1430 p_owner->b_has_data = true;
1431 vlc_cond_signal( &p_owner->wait_acknowledge );
1434 bool b_reject = DecoderWaitUnblock( p_dec );
1436 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1439 if( p_subpic->i_start <= VLC_TS_INVALID )
1442 DecoderWaitDate( p_dec, &b_reject,
1443 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1444 vlc_mutex_unlock( &p_owner->lock );
1447 vout_PutSubpicture( p_vout, p_subpic );
1449 subpicture_Delete( p_subpic );
1453 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1455 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1457 assert( p_owner->p_clock );
1458 assert( !p_sout_block->p_next );
1460 vlc_mutex_lock( &p_owner->lock );
1462 if( p_owner->b_waiting )
1464 p_owner->b_has_data = true;
1465 vlc_cond_signal( &p_owner->wait_acknowledge );
1468 bool b_reject = DecoderWaitUnblock( p_dec );
1470 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1471 &p_sout_block->i_length, NULL, INT64_MAX );
1473 vlc_mutex_unlock( &p_owner->lock );
1477 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1478 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1482 block_Release( p_sout_block );
1483 return VLC_EGENERIC;
1489 /* This function process a block for sout
1491 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1493 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1494 block_t *p_sout_block;
1496 while( ( p_sout_block =
1497 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1499 if( p_owner->p_sout_input == NULL )
1501 assert( !p_owner->b_fmt_description ); // no need for owner lock
1502 es_format_Clean( &p_owner->fmt );
1503 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1505 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1506 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1507 if( p_dec->fmt_in.psz_language )
1509 free( p_owner->fmt.psz_language );
1510 p_owner->fmt.psz_language =
1511 strdup( p_dec->fmt_in.psz_language );
1514 p_owner->p_sout_input =
1515 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1517 if( p_owner->p_sout_input == NULL )
1519 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1520 (char *)&p_owner->fmt.i_codec );
1521 p_dec->b_error = true;
1523 block_ChainRelease(p_sout_block);
1528 while( p_sout_block )
1530 block_t *p_next = p_sout_block->p_next;
1532 p_sout_block->p_next = NULL;
1534 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1536 msg_Err( p_dec, "cannot continue streaming due to errors" );
1538 p_dec->b_error = true;
1541 block_ChainRelease( p_next );
1545 p_sout_block = p_next;
1551 /* This function process a video block
1553 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1555 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1557 if( p_owner->p_packetizer )
1559 block_t *p_packetized_block;
1560 decoder_t *p_packetizer = p_owner->p_packetizer;
1562 while( (p_packetized_block =
1563 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1565 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1567 es_format_Clean( &p_dec->fmt_in );
1568 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1571 /* If the packetizer provides aspect ratio information, pass it
1572 * to the decoder as a hint if the decoder itself can't provide
1573 * it. Copy it regardless of the current value of the decoder input
1574 * format aspect ratio, to properly propagate changes in aspect
1576 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1577 p_packetizer->fmt_out.video.i_sar_den > 0)
1579 p_dec->fmt_in.video.i_sar_num =
1580 p_packetizer->fmt_out.video.i_sar_num;
1581 p_dec->fmt_in.video.i_sar_den=
1582 p_packetizer->fmt_out.video.i_sar_den;
1585 if( p_packetizer->pf_get_cc )
1586 DecoderGetCc( p_dec, p_packetizer );
1588 while( p_packetized_block )
1590 block_t *p_next = p_packetized_block->p_next;
1591 p_packetized_block->p_next = NULL;
1593 DecoderDecodeVideo( p_dec, p_packetized_block );
1595 p_packetized_block = p_next;
1598 /* The packetizer does not output a block that tell the decoder to flush
1602 block_t *p_null = DecoderBlockFlushNew();
1604 DecoderDecodeVideo( p_dec, p_null );
1609 DecoderDecodeVideo( p_dec, p_block );
1612 if( b_flush && p_owner->p_vout )
1613 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1616 /* This function process a audio block
1618 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1620 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1622 if( p_owner->p_packetizer )
1624 block_t *p_packetized_block;
1625 decoder_t *p_packetizer = p_owner->p_packetizer;
1627 while( (p_packetized_block =
1628 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1630 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1632 es_format_Clean( &p_dec->fmt_in );
1633 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1636 while( p_packetized_block )
1638 block_t *p_next = p_packetized_block->p_next;
1639 p_packetized_block->p_next = NULL;
1641 DecoderDecodeAudio( p_dec, p_packetized_block );
1643 p_packetized_block = p_next;
1646 /* The packetizer does not output a block that tell the decoder to flush
1650 block_t *p_null = DecoderBlockFlushNew();
1652 DecoderDecodeAudio( p_dec, p_null );
1657 DecoderDecodeAudio( p_dec, p_block );
1660 if( b_flush && p_owner->p_aout )
1661 aout_DecFlush( p_owner->p_aout );
1664 /* This function process a subtitle block
1666 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1668 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1670 input_thread_t *p_input = p_owner->p_input;
1671 vout_thread_t *p_vout;
1672 subpicture_t *p_spu;
1674 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1676 if( p_input != NULL )
1678 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1679 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1680 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1683 p_vout = input_resource_HoldVout( p_owner->p_resource );
1684 if( p_vout && p_owner->p_spu_vout == p_vout )
1686 /* Preroll does not work very well with subtitle */
1687 if( p_spu->i_start > VLC_TS_INVALID &&
1688 p_spu->i_start < p_owner->i_preroll_end &&
1689 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1691 subpicture_Delete( p_spu );
1695 DecoderPlaySpu( p_dec, p_spu );
1700 subpicture_Delete( p_spu );
1703 vlc_object_release( p_vout );
1706 if( b_flush && p_owner->p_spu_vout )
1708 p_vout = input_resource_HoldVout( p_owner->p_resource );
1710 if( p_vout && p_owner->p_spu_vout == p_vout )
1711 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1714 vlc_object_release( p_vout );
1719 static void DecoderProcessOnFlush( decoder_t *p_dec )
1721 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1723 vlc_mutex_lock( &p_owner->lock );
1725 if( p_owner->b_flushing )
1727 p_owner->b_flushing = false;
1728 vlc_cond_signal( &p_owner->wait_acknowledge );
1730 vlc_mutex_unlock( &p_owner->lock );
1736 * \param p_dec the decoder object
1737 * \param p_block the block to decode
1738 * \return VLC_SUCCESS or an error code
1740 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1742 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1743 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1745 if( p_dec->b_error )
1748 block_Release( p_block );
1752 if( p_block && p_block->i_buffer <= 0 )
1754 assert( !b_flush_request );
1755 block_Release( p_block );
1760 if( p_owner->b_packetizer )
1763 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1765 DecoderProcessSout( p_dec, p_block );
1770 bool b_flush = false;
1774 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1775 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1777 b_flush = !b_flushing && b_flush_request;
1779 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1782 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1784 DecoderProcessAudio( p_dec, p_block, b_flush );
1786 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1788 DecoderProcessVideo( p_dec, p_block, b_flush );
1790 else if( p_dec->fmt_out.i_cat == SPU_ES )
1792 DecoderProcessSpu( p_dec, p_block, b_flush );
1796 msg_Err( p_dec, "unknown ES format" );
1797 p_dec->b_error = true;
1803 if( b_flush_request )
1804 DecoderProcessOnFlush( p_dec );
1808 * Destroys a decoder object
1810 * \param p_dec the decoder object
1813 static void DeleteDecoder( decoder_t * p_dec )
1815 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1817 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1818 (char*)&p_dec->fmt_in.i_codec,
1819 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1821 /* Free all packets still in the decoder fifo. */
1822 block_FifoRelease( p_owner->p_fifo );
1825 if( p_owner->p_aout )
1827 /* TODO: REVISIT gap-less audio */
1828 aout_DecFlush( p_owner->p_aout );
1829 aout_DecDelete( p_owner->p_aout );
1830 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1831 if( p_owner->p_input != NULL )
1832 input_SendEventAout( p_owner->p_input );
1834 if( p_owner->p_vout )
1836 /* Hack to make sure all the the pictures are freed by the decoder
1837 * and that the vout is not paused anymore */
1838 vout_Reset( p_owner->p_vout );
1841 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1843 if( p_owner->p_input != NULL )
1844 input_SendEventVout( p_owner->p_input );
1848 if( p_owner->p_sout_input )
1850 sout_InputDelete( p_owner->p_sout_input );
1853 es_format_Clean( &p_owner->fmt );
1855 if( p_dec->fmt_out.i_cat == SPU_ES )
1857 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1860 if( p_owner->p_spu_vout == p_vout )
1861 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1862 vlc_object_release( p_vout );
1866 es_format_Clean( &p_dec->fmt_in );
1867 es_format_Clean( &p_dec->fmt_out );
1868 if( p_dec->p_description )
1869 vlc_meta_Delete( p_dec->p_description );
1870 if( p_owner->p_description )
1871 vlc_meta_Delete( p_owner->p_description );
1873 if( p_owner->p_packetizer )
1875 module_unneed( p_owner->p_packetizer,
1876 p_owner->p_packetizer->p_module );
1877 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1878 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1879 if( p_owner->p_packetizer->p_description )
1880 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1881 vlc_object_release( p_owner->p_packetizer );
1884 vlc_cond_destroy( &p_owner->wait_acknowledge );
1885 vlc_cond_destroy( &p_owner->wait_request );
1886 vlc_mutex_destroy( &p_owner->lock );
1888 vlc_object_release( p_dec );
1893 /*****************************************************************************
1894 * Buffers allocation callbacks for the decoders
1895 *****************************************************************************/
1896 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1898 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1900 vlc_assert_locked( &p_owner->lock );
1902 p_owner->b_fmt_description = true;
1904 /* Move p_description */
1905 if( p_owner->p_description && p_dec->p_description )
1906 vlc_meta_Delete( p_owner->p_description );
1907 p_owner->p_description = p_dec->p_description;
1908 p_dec->p_description = NULL;
1910 static vout_thread_t *aout_request_vout( void *p_private,
1911 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1913 decoder_t *p_dec = p_private;
1914 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1915 input_thread_t *p_input = p_owner->p_input;
1917 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1919 if( p_input != NULL )
1920 input_SendEventVout( p_input );
1925 static int aout_update_format( decoder_t *p_dec )
1927 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1930 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1932 audio_output_t *p_aout = p_owner->p_aout;
1934 /* Parameters changed, restart the aout */
1935 vlc_mutex_lock( &p_owner->lock );
1937 aout_DecDelete( p_owner->p_aout );
1938 p_owner->p_aout = NULL;
1940 vlc_mutex_unlock( &p_owner->lock );
1941 input_resource_PutAout( p_owner->p_resource, p_aout );
1944 if( p_owner->p_aout == NULL )
1946 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1948 audio_sample_format_t format = p_dec->fmt_out.audio;
1949 aout_FormatPrepare( &format );
1951 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1952 if( i_force_dolby &&
1953 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1954 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1956 if( i_force_dolby == 1 )
1958 format.i_original_channels = format.i_original_channels |
1959 AOUT_CHAN_DOLBYSTEREO;
1961 else /* i_force_dolby == 2 */
1963 format.i_original_channels = format.i_original_channels &
1964 ~AOUT_CHAN_DOLBYSTEREO;
1968 aout_request_vout_t request_vout = {
1969 .pf_request_vout = aout_request_vout,
1972 audio_output_t *p_aout;
1974 p_aout = input_resource_GetAout( p_owner->p_resource );
1977 if( aout_DecNew( p_aout, &format,
1978 &p_dec->fmt_out.audio_replay_gain,
1981 input_resource_PutAout( p_owner->p_resource, p_aout );
1986 vlc_mutex_lock( &p_owner->lock );
1988 p_owner->p_aout = p_aout;
1990 es_format_Clean( &p_owner->fmt );
1991 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1992 aout_FormatPrepare( &p_owner->fmt.audio );
1994 DecoderUpdateFormatLocked( p_dec );
1996 if( unlikely(p_owner->b_paused) && p_aout != NULL )
1997 /* fake pause if needed */
1998 aout_DecChangePause( p_aout, true, mdate() );
2000 vlc_mutex_unlock( &p_owner->lock );
2002 if( p_owner->p_input != NULL )
2003 input_SendEventAout( p_owner->p_input );
2005 if( p_aout == NULL )
2007 msg_Err( p_dec, "failed to create audio output" );
2008 p_dec->b_error = true;
2012 p_dec->fmt_out.audio.i_bytes_per_frame =
2013 p_owner->fmt.audio.i_bytes_per_frame;
2014 p_dec->fmt_out.audio.i_frame_length =
2015 p_owner->fmt.audio.i_frame_length;
2020 static int vout_update_format( decoder_t *p_dec )
2022 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2024 if( p_owner->p_vout == NULL
2025 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2026 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2027 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2028 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2029 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2030 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2031 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2032 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2033 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2034 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2036 vout_thread_t *p_vout;
2038 if( !p_dec->fmt_out.video.i_width ||
2039 !p_dec->fmt_out.video.i_height )
2041 /* Can't create a new vout without display size */
2045 video_format_t fmt = p_dec->fmt_out.video;
2046 fmt.i_chroma = p_dec->fmt_out.i_codec;
2048 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2050 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2051 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2053 while( fmt.i_width % dsc->p[i].w.den )
2055 while( fmt.i_height % dsc->p[i].h.den )
2060 if( !fmt.i_visible_width || !fmt.i_visible_height )
2062 if( p_dec->fmt_in.video.i_visible_width &&
2063 p_dec->fmt_in.video.i_visible_height )
2065 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2066 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2067 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2068 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2072 fmt.i_visible_width = fmt.i_width;
2073 fmt.i_visible_height = fmt.i_height;
2079 if( fmt.i_visible_height == 1088 &&
2080 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2082 fmt.i_visible_height = 1080;
2083 if( !(fmt.i_sar_num % 136))
2085 fmt.i_sar_num *= 135;
2086 fmt.i_sar_den *= 136;
2088 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2091 if( !fmt.i_sar_num || !fmt.i_sar_den )
2097 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2098 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2100 vlc_mutex_lock( &p_owner->lock );
2102 p_vout = p_owner->p_vout;
2103 p_owner->p_vout = NULL;
2104 vlc_mutex_unlock( &p_owner->lock );
2107 switch( p_dec->fmt_in.i_codec )
2109 case VLC_CODEC_HEVC:
2110 case VLC_CODEC_H264:
2111 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2116 case VLC_CODEC_VP6F:
2124 p_vout = input_resource_RequestVout( p_owner->p_resource,
2127 p_dec->i_extra_picture_buffers + 1,
2129 vlc_mutex_lock( &p_owner->lock );
2130 p_owner->p_vout = p_vout;
2132 es_format_Clean( &p_owner->fmt );
2133 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2134 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
2136 DecoderUpdateFormatLocked( p_dec );
2138 vlc_mutex_unlock( &p_owner->lock );
2140 if( p_owner->p_input != NULL )
2141 input_SendEventVout( p_owner->p_input );
2142 if( p_vout == NULL )
2144 msg_Err( p_dec, "failed to create video output" );
2145 p_dec->b_error = true;
2152 static picture_t *vout_new_buffer( decoder_t *p_dec )
2154 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2158 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
2161 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2166 DecoderSignalWait( p_dec );
2168 /* Check the decoder doesn't leak pictures */
2169 vout_FixLeaks( p_owner->p_vout );
2171 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2172 msleep( VOUT_OUTMEM_SLEEP );
2176 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2177 const subpicture_updater_t *p_updater )
2179 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2180 vout_thread_t *p_vout = NULL;
2181 subpicture_t *p_subpic;
2182 int i_attempts = 30;
2184 while( i_attempts-- )
2186 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
2189 p_vout = input_resource_HoldVout( p_owner->p_resource );
2193 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2198 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2202 if( p_owner->p_spu_vout != p_vout )
2204 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2205 p_owner->i_spu_order = 0;
2206 p_owner->p_spu_vout = p_vout;
2209 p_subpic = subpicture_New( p_updater );
2212 p_subpic->i_channel = p_owner->i_spu_channel;
2213 p_subpic->i_order = p_owner->i_spu_order++;
2214 p_subpic->b_subtitle = true;
2217 vlc_object_release( p_vout );