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 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 *, bool );
66 static void DecoderUnsupportedCodec( decoder_t *, vlc_fourcc_t );
68 /* Buffers allocation callbacks for the decoders */
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 * );
73 static int aout_update_format( decoder_t * );
74 static subpicture_t *spu_new_buffer( decoder_t *, const subpicture_updater_t * );
75 static void spu_del_buffer( decoder_t *, subpicture_t * );
77 struct decoder_owner_sys_t
79 int64_t i_preroll_end;
81 input_thread_t *p_input;
82 input_resource_t*p_resource;
83 input_clock_t *p_clock;
86 vout_thread_t *p_spu_vout;
90 sout_instance_t *p_sout;
91 sout_packetizer_input_t *p_sout_input;
95 /* Some decoders require already packetized data (ie. not truncated) */
96 decoder_t *p_packetizer;
99 /* Current format in use by the output */
103 bool b_fmt_description;
104 vlc_meta_t *p_description;
107 block_fifo_t *p_fifo;
109 /* Lock for communication with decoder thread */
111 vlc_cond_t wait_request;
112 vlc_cond_t wait_acknowledge;
114 /* -- These variables need locking on write(only) -- */
115 audio_output_t *p_aout;
117 vout_thread_t *p_vout;
119 /* -- Theses variables need locking on read *and* write -- */
143 decoder_t *pp_decoder[4];
150 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
151 * a bogus PTS and won't be displayed */
152 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
155 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
158 /*****************************************************************************
160 *****************************************************************************/
161 picture_t *decoder_NewPicture( decoder_t *p_decoder )
163 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
165 msg_Warn( p_decoder, "can't get output picture" );
168 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
170 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
172 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
174 p_decoder->pf_picture_link( p_decoder, p_picture );
176 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
178 p_decoder->pf_picture_unlink( p_decoder, p_picture );
181 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
183 if( decoder_UpdateAudioFormat( dec ) )
186 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
187 / dec->fmt_out.audio.i_frame_length;
188 block_t *block = block_Alloc( length );
189 if( likely(block != NULL) )
191 block->i_nb_samples = samples;
192 block->i_pts = block->i_length = 0;
197 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
198 const subpicture_updater_t *p_dyn )
200 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
202 msg_Warn( p_decoder, "can't get output subpicture" );
206 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
208 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
211 /* decoder_GetInputAttachments:
213 int decoder_GetInputAttachments( decoder_t *p_dec,
214 input_attachment_t ***ppp_attachment,
217 if( !p_dec->pf_get_attachments )
220 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
222 /* decoder_GetDisplayDate:
224 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
226 if( !p_dec->pf_get_display_date )
227 return VLC_TS_INVALID;
229 return p_dec->pf_get_display_date( p_dec, i_ts );
231 /* decoder_GetDisplayRate:
233 int decoder_GetDisplayRate( decoder_t *p_dec )
235 if( !p_dec->pf_get_display_rate )
236 return INPUT_RATE_DEFAULT;
238 return p_dec->pf_get_display_rate( p_dec );
241 /* TODO: pass p_sout through p_resource? -- Courmisch */
242 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
243 es_format_t *fmt, input_clock_t *p_clock,
244 input_resource_t *p_resource,
245 sout_instance_t *p_sout )
247 decoder_t *p_dec = NULL;
248 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
251 /* Create the decoder configuration structure */
252 p_dec = CreateDecoder( p_parent, p_input, fmt,
253 p_sout != NULL, p_resource, p_sout );
256 msg_Err( p_parent, "could not create %s", psz_type );
257 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
258 _("VLC could not open the %s module."),
259 vlc_gettext( psz_type ) );
263 if( !p_dec->p_module )
265 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
267 DeleteDecoder( p_dec );
271 p_dec->p_owner->p_clock = p_clock;
272 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
274 if( p_dec->fmt_out.i_cat == AUDIO_ES )
275 i_priority = VLC_THREAD_PRIORITY_AUDIO;
277 i_priority = VLC_THREAD_PRIORITY_VIDEO;
279 /* Spawn the decoder thread */
280 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
282 msg_Err( p_dec, "cannot spawn decoder thread" );
283 module_unneed( p_dec, p_dec->p_module );
284 DeleteDecoder( p_dec );
293 * Spawns a new decoder thread from the input thread
295 * \param p_input the input thread
296 * \param p_es the es descriptor
297 * \return the spawned decoder object
299 decoder_t *input_DecoderNew( input_thread_t *p_input,
300 es_format_t *fmt, input_clock_t *p_clock,
301 sout_instance_t *p_sout )
303 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
304 p_input->p->p_resource, p_sout );
308 * Spawn a decoder thread outside of the input thread.
310 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, es_format_t *fmt,
311 input_resource_t *p_resource )
313 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
318 * Kills a decoder thread and waits until it's finished
320 * \param p_input the input thread
321 * \param p_es the es descriptor
324 void input_DecoderDelete( decoder_t *p_dec )
326 decoder_owner_sys_t *p_owner = p_dec->p_owner;
328 vlc_cancel( p_owner->thread );
330 /* Make sure we aren't paused/waiting/decoding anymore */
331 vlc_mutex_lock( &p_owner->lock );
332 p_owner->b_paused = false;
333 p_owner->b_waiting = false;
334 p_owner->b_flushing = true;
335 p_owner->b_exit = true;
336 vlc_cond_signal( &p_owner->wait_request );
337 vlc_mutex_unlock( &p_owner->lock );
339 vlc_join( p_owner->thread, NULL );
341 module_unneed( p_dec, p_dec->p_module );
344 if( p_dec->p_owner->cc.b_supported )
347 for( i = 0; i < 4; i++ )
348 input_DecoderSetCcState( p_dec, false, i );
352 DeleteDecoder( p_dec );
356 * Put a block_t in the decoder's fifo.
357 * Thread-safe w.r.t. the decoder. May be a cancellation point.
359 * \param p_dec the decoder object
360 * \param p_block the data block
362 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
364 decoder_owner_sys_t *p_owner = p_dec->p_owner;
368 /* The fifo is not consumed when waiting and so will
370 * There is no need to lock as b_waiting is never modified
371 * inside decoder thread. */
372 if( !p_owner->b_waiting )
373 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
376 else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
378 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
381 /* FIXME: ideally we would check the time amount of data
382 * in the FIFO instead of its size. */
383 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
384 "consumed quickly enough), resetting fifo!" );
385 block_FifoEmpty( p_owner->p_fifo );
388 block_FifoPut( p_owner->p_fifo, p_block );
391 bool input_DecoderIsEmpty( decoder_t * p_dec )
393 decoder_owner_sys_t *p_owner = p_dec->p_owner;
394 assert( !p_owner->b_waiting );
396 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
400 vlc_mutex_lock( &p_owner->lock );
401 /* TODO subtitles support */
402 if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
403 b_empty = vout_IsEmpty( p_owner->p_vout );
404 else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout )
405 b_empty = aout_DecIsEmpty( p_owner->p_aout );
406 vlc_mutex_unlock( &p_owner->lock );
411 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
413 decoder_owner_sys_t *p_owner = p_dec->p_owner;
416 vlc_mutex_lock( &p_owner->lock );
417 for( i = 0; i < 4; i++ )
418 pb_present[i] = p_owner->cc.pb_present[i];
419 vlc_mutex_unlock( &p_owner->lock );
421 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
423 decoder_owner_sys_t *p_owner = p_dec->p_owner;
425 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
427 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
432 static const vlc_fourcc_t fcc[4] = {
433 VLC_FOURCC('c', 'c', '1', ' '),
434 VLC_FOURCC('c', 'c', '2', ' '),
435 VLC_FOURCC('c', 'c', '3', ' '),
436 VLC_FOURCC('c', 'c', '4', ' '),
441 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
442 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
443 p_dec->p_owner->p_clock, p_owner->p_sout );
446 msg_Err( p_dec, "could not create decoder" );
447 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
448 _("VLC could not open the decoder module.") );
451 else if( !p_cc->p_module )
453 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
454 input_DecoderDelete(p_cc);
457 p_cc->p_owner->p_clock = p_owner->p_clock;
459 vlc_mutex_lock( &p_owner->lock );
460 p_owner->cc.pp_decoder[i_channel] = p_cc;
461 vlc_mutex_unlock( &p_owner->lock );
467 vlc_mutex_lock( &p_owner->lock );
468 p_cc = p_owner->cc.pp_decoder[i_channel];
469 p_owner->cc.pp_decoder[i_channel] = NULL;
470 vlc_mutex_unlock( &p_owner->lock );
473 input_DecoderDelete(p_cc);
477 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
479 decoder_owner_sys_t *p_owner = p_dec->p_owner;
482 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
485 vlc_mutex_lock( &p_owner->lock );
486 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
487 vlc_mutex_unlock( &p_owner->lock );
491 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
493 decoder_owner_sys_t *p_owner = p_dec->p_owner;
495 vlc_mutex_lock( &p_owner->lock );
496 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
497 * while the input is paused (e.g. add sub file), then b_paused is
498 * (incorrectly) false. */
499 if( likely(p_owner->b_paused != b_paused) ) {
500 p_owner->b_paused = b_paused;
501 p_owner->pause.i_date = i_date;
502 p_owner->pause.i_ignore = 0;
503 vlc_cond_signal( &p_owner->wait_request );
505 /* XXX only audio and video output have to be paused.
506 * - for sout it is useless
507 * - for subs, it is done by the vout
509 if( p_dec->fmt_out.i_cat == AUDIO_ES )
511 if( p_owner->p_aout )
512 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
514 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
516 if( p_owner->p_vout )
517 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
520 vlc_mutex_unlock( &p_owner->lock );
523 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
525 decoder_owner_sys_t *p_owner = p_dec->p_owner;
527 vlc_mutex_lock( &p_owner->lock );
528 p_owner->i_ts_delay = i_delay;
529 vlc_mutex_unlock( &p_owner->lock );
532 void input_DecoderStartWait( decoder_t *p_dec )
534 decoder_owner_sys_t *p_owner = p_dec->p_owner;
536 vlc_mutex_lock( &p_owner->lock );
538 DecoderFlush( p_dec );
540 p_owner->b_first = true;
541 p_owner->b_has_data = false;
543 p_owner->b_waiting = true;
545 vlc_cond_signal( &p_owner->wait_request );
547 vlc_mutex_unlock( &p_owner->lock );
550 void input_DecoderStopWait( decoder_t *p_dec )
552 decoder_owner_sys_t *p_owner = p_dec->p_owner;
554 vlc_mutex_lock( &p_owner->lock );
556 p_owner->b_waiting = false;
558 vlc_cond_signal( &p_owner->wait_request );
560 vlc_mutex_unlock( &p_owner->lock );
563 void input_DecoderWait( decoder_t *p_dec )
565 decoder_owner_sys_t *p_owner = p_dec->p_owner;
567 vlc_mutex_lock( &p_owner->lock );
569 while( p_owner->b_waiting && !p_owner->b_has_data )
571 block_FifoWake( p_owner->p_fifo );
572 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
575 vlc_mutex_unlock( &p_owner->lock );
578 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
580 decoder_owner_sys_t *p_owner = p_dec->p_owner;
584 vlc_mutex_lock( &p_owner->lock );
585 if( p_dec->fmt_out.i_cat == VIDEO_ES )
587 if( p_owner->b_paused && p_owner->p_vout )
589 vout_NextPicture( p_owner->p_vout, pi_duration );
590 p_owner->pause.i_ignore++;
591 vlc_cond_signal( &p_owner->wait_request );
596 /* TODO subtitle should not be flushed */
597 DecoderFlush( p_dec );
599 vlc_mutex_unlock( &p_owner->lock );
602 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
604 decoder_owner_sys_t *p_owner = p_dec->p_owner;
607 vlc_mutex_lock( &p_owner->lock );
608 b_changed = p_owner->b_fmt_description;
612 es_format_Copy( p_fmt, &p_owner->fmt );
617 if( p_owner->p_description )
619 *pp_meta = vlc_meta_New();
621 vlc_meta_Merge( *pp_meta, p_owner->p_description );
624 p_owner->b_fmt_description = false;
626 vlc_mutex_unlock( &p_owner->lock );
630 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
632 decoder_owner_sys_t *p_owner = p_dec->p_owner;
634 return block_FifoSize( p_owner->p_fifo );
637 void input_DecoderGetObjects( decoder_t *p_dec,
638 vout_thread_t **pp_vout, audio_output_t **pp_aout )
640 decoder_owner_sys_t *p_owner = p_dec->p_owner;
642 vlc_mutex_lock( &p_owner->lock );
644 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
646 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
647 vlc_mutex_unlock( &p_owner->lock );
650 /*****************************************************************************
652 *****************************************************************************/
653 static int DecoderGetInputAttachments( decoder_t *p_dec,
654 input_attachment_t ***ppp_attachment,
657 input_thread_t *p_input = p_dec->p_owner->p_input;
659 if( unlikely(p_input == NULL) )
661 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
662 ppp_attachment, pi_attachment );
664 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
666 decoder_owner_sys_t *p_owner = p_dec->p_owner;
668 vlc_mutex_lock( &p_owner->lock );
669 if( p_owner->b_waiting || p_owner->b_paused )
670 i_ts = VLC_TS_INVALID;
671 vlc_mutex_unlock( &p_owner->lock );
673 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
676 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
677 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
678 return VLC_TS_INVALID;
683 static int DecoderGetDisplayRate( decoder_t *p_dec )
685 decoder_owner_sys_t *p_owner = p_dec->p_owner;
687 if( !p_owner->p_clock )
688 return INPUT_RATE_DEFAULT;
689 return input_clock_GetRate( p_owner->p_clock );
693 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
695 if (codec != VLC_FOURCC('u','n','d','f')) {
696 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
698 desc = N_("No description for this codec");
699 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
700 dialog_Fatal( p_dec, _("Codec not supported"),
701 _("VLC could not decode the format \"%4.4s\" (%s)"),
702 (char*)&codec, desc );
704 msg_Err( p_dec, "could not identify codec" );
705 dialog_Fatal( p_dec, _("Unidentified codec"),
706 _("VLC could not identify the audio or video codec" ) );
712 * Create a decoder object
714 * \param p_input the input thread
715 * \param p_es the es descriptor
716 * \param b_packetizer instead of a decoder
717 * \return the decoder object
719 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
720 input_thread_t *p_input,
721 es_format_t *fmt, bool b_packetizer,
722 input_resource_t *p_resource,
723 sout_instance_t *p_sout )
726 decoder_owner_sys_t *p_owner;
727 es_format_t null_es_format;
729 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
733 p_dec->pf_decode_audio = NULL;
734 p_dec->pf_decode_video = NULL;
735 p_dec->pf_decode_sub = NULL;
736 p_dec->pf_get_cc = NULL;
737 p_dec->pf_packetize = NULL;
739 /* Initialize the decoder */
740 p_dec->p_module = NULL;
742 memset( &null_es_format, 0, sizeof(es_format_t) );
743 es_format_Copy( &p_dec->fmt_in, fmt );
744 es_format_Copy( &p_dec->fmt_out, &null_es_format );
746 p_dec->p_description = NULL;
748 /* Allocate our private structure for the decoder */
749 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
750 if( unlikely(p_owner == NULL) )
752 vlc_object_release( p_dec );
755 p_owner->i_preroll_end = VLC_TS_INVALID;
756 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
757 p_owner->p_input = p_input;
758 p_owner->p_resource = p_resource;
759 p_owner->p_aout = NULL;
760 p_owner->p_vout = NULL;
761 p_owner->p_spu_vout = NULL;
762 p_owner->i_spu_channel = 0;
763 p_owner->i_spu_order = 0;
764 p_owner->p_sout = p_sout;
765 p_owner->p_sout_input = NULL;
766 p_owner->p_packetizer = NULL;
767 p_owner->b_packetizer = b_packetizer;
768 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
771 p_owner->p_fifo = block_FifoNew();
772 if( unlikely(p_owner->p_fifo == NULL) )
775 vlc_object_release( p_dec );
779 /* Set buffers allocation callbacks for the decoders */
780 p_dec->pf_aout_format_update = aout_update_format;
781 p_dec->pf_vout_buffer_new = vout_new_buffer;
782 p_dec->pf_vout_buffer_del = vout_del_buffer;
783 p_dec->pf_picture_link = vout_link_picture;
784 p_dec->pf_picture_unlink = vout_unlink_picture;
785 p_dec->pf_spu_buffer_new = spu_new_buffer;
786 p_dec->pf_spu_buffer_del = spu_del_buffer;
788 p_dec->pf_get_attachments = DecoderGetInputAttachments;
789 p_dec->pf_get_display_date = DecoderGetDisplayDate;
790 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
792 /* Find a suitable decoder/packetizer module */
794 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
796 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
798 /* Check if decoder requires already packetized data */
800 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
802 p_owner->p_packetizer =
803 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
804 if( p_owner->p_packetizer )
806 es_format_Copy( &p_owner->p_packetizer->fmt_in,
809 es_format_Copy( &p_owner->p_packetizer->fmt_out,
812 p_owner->p_packetizer->p_module =
813 module_need( p_owner->p_packetizer,
814 "packetizer", "$packetizer", false );
816 if( !p_owner->p_packetizer->p_module )
818 es_format_Clean( &p_owner->p_packetizer->fmt_in );
819 vlc_object_release( p_owner->p_packetizer );
820 p_owner->p_packetizer = NULL;
825 /* Copy ourself the input replay gain */
826 if( fmt->i_cat == AUDIO_ES )
828 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
830 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
832 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
833 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
835 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
837 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
838 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
844 vlc_mutex_init( &p_owner->lock );
845 vlc_cond_init( &p_owner->wait_request );
846 vlc_cond_init( &p_owner->wait_acknowledge );
848 p_owner->b_fmt_description = false;
849 p_owner->p_description = NULL;
851 p_owner->b_exit = false;
853 p_owner->b_paused = false;
854 p_owner->pause.i_date = VLC_TS_INVALID;
855 p_owner->pause.i_ignore = 0;
857 p_owner->b_waiting = false;
858 p_owner->b_first = true;
859 p_owner->b_has_data = false;
861 p_owner->b_flushing = false;
864 p_owner->cc.b_supported = false;
867 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
868 p_owner->cc.b_supported = true;
869 if( p_dec->pf_get_cc )
870 p_owner->cc.b_supported = true;
873 for( unsigned i = 0; i < 4; i++ )
875 p_owner->cc.pb_present[i] = false;
876 p_owner->cc.pp_decoder[i] = NULL;
878 p_owner->i_ts_delay = 0;
883 * The decoding main loop
885 * \param p_dec the decoder
887 static void *DecoderThread( void *p_data )
889 decoder_t *p_dec = (decoder_t *)p_data;
890 decoder_owner_sys_t *p_owner = p_dec->p_owner;
892 /* The decoder's main loop */
895 block_t *p_block = block_FifoGet( p_owner->p_fifo );
897 /* Make sure there is no cancellation point other than this one^^.
898 * If you need one, be sure to push cleanup of p_block. */
899 bool end_wait = !p_block || p_block->i_flags & BLOCK_FLAG_CORE_EOS;
900 DecoderSignalWait( p_dec, end_wait );
902 input_DecoderStopWait( p_dec );
906 int canc = vlc_savecancel();
908 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
910 /* calling DecoderProcess() with NULL block will make
911 * decoders/packetizers flush their buffers */
912 block_Release( p_block );
916 DecoderProcess( p_dec, p_block );
918 vlc_restorecancel( canc );
924 static block_t *DecoderBlockFlushNew()
926 block_t *p_null = block_Alloc( 128 );
930 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
931 BLOCK_FLAG_CORRUPTED |
932 BLOCK_FLAG_CORE_FLUSH;
933 memset( p_null->p_buffer, 0, p_null->i_buffer );
938 static void DecoderFlush( decoder_t *p_dec )
940 decoder_owner_sys_t *p_owner = p_dec->p_owner;
942 vlc_assert_locked( &p_owner->lock );
945 block_FifoEmpty( p_owner->p_fifo );
947 p_owner->b_waiting = false;
948 /* Monitor for flush end */
949 p_owner->b_flushing = true;
950 vlc_cond_signal( &p_owner->wait_request );
952 /* Send a special block */
953 block_t *p_null = DecoderBlockFlushNew();
956 input_DecoderDecode( p_dec, p_null, false );
959 while( p_owner->b_flushing )
960 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
963 static void DecoderSignalWait( decoder_t *p_dec, bool b_has_data )
965 decoder_owner_sys_t *p_owner = p_dec->p_owner;
967 vlc_mutex_lock( &p_owner->lock );
969 if( p_owner->b_waiting )
972 p_owner->b_has_data = true;
973 vlc_cond_signal( &p_owner->wait_acknowledge );
976 vlc_mutex_unlock( &p_owner->lock );
979 static bool DecoderIsFlushing( decoder_t *p_dec )
981 decoder_owner_sys_t *p_owner = p_dec->p_owner;
984 vlc_mutex_lock( &p_owner->lock );
986 b_flushing = p_owner->b_flushing;
988 vlc_mutex_unlock( &p_owner->lock );
993 static bool DecoderWaitUnblock( decoder_t *p_dec )
995 decoder_owner_sys_t *p_owner = p_dec->p_owner;
997 vlc_assert_locked( &p_owner->lock );
1001 if( p_owner->b_flushing )
1003 if( p_owner->b_paused )
1005 if( p_owner->b_waiting && !p_owner->b_has_data )
1007 if( p_owner->pause.i_ignore > 0 )
1009 p_owner->pause.i_ignore--;
1015 if( !p_owner->b_waiting || !p_owner->b_has_data )
1018 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1021 return p_owner->b_flushing;
1024 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1026 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1027 *pi_preroll = INT64_MAX;
1028 else if( p->i_dts > VLC_TS_INVALID )
1029 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1030 else if( p->i_pts > VLC_TS_INVALID )
1031 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1034 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1035 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1037 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1038 input_clock_t *p_clock = p_owner->p_clock;
1040 vlc_assert_locked( &p_owner->lock );
1042 const mtime_t i_es_delay = p_owner->i_ts_delay;
1047 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1050 if( *pi_ts0 > VLC_TS_INVALID )
1052 *pi_ts0 += i_es_delay;
1053 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1054 *pi_ts1 += i_es_delay;
1055 if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1056 if( pi_ts1 != NULL )
1057 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1058 ", %"PRId64"", *pi_ts0, *pi_ts1);
1060 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1061 *pi_ts0 = VLC_TS_INVALID;
1066 i_rate = input_clock_GetRate( p_clock );
1069 /* Do not create ephemere data because of rounding errors */
1070 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1074 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1075 / INPUT_RATE_DEFAULT;
1081 static bool DecoderIsExitRequested( decoder_t *p_dec )
1083 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1085 vlc_mutex_lock( &p_owner->lock );
1086 bool b_exit = p_owner->b_exit;
1087 vlc_mutex_unlock( &p_owner->lock );
1093 * If *pb_reject, it does nothing, otherwise it waits for the given
1094 * deadline or a flush request (in which case it set *pi_reject to true.
1096 static void DecoderWaitDate( decoder_t *p_dec,
1097 bool *pb_reject, mtime_t i_deadline )
1099 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1101 vlc_assert_locked( &p_owner->lock );
1103 if( *pb_reject || i_deadline < 0 )
1108 if( p_owner->b_flushing || p_owner->b_exit )
1114 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1115 i_deadline ) == 0 );
1118 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1119 int *pi_played_sum, int *pi_lost_sum )
1121 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1122 audio_output_t *p_aout = p_owner->p_aout;
1125 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1127 msg_Warn( p_dec, "non-dated audio buffer received" );
1129 block_Release( p_audio );
1134 vlc_mutex_lock( &p_owner->lock );
1136 if( p_audio && p_owner->b_waiting )
1138 p_owner->b_has_data = true;
1139 vlc_cond_signal( &p_owner->wait_acknowledge );
1146 bool b_reject = DecoderWaitUnblock( p_dec );
1148 b_paused = p_owner->b_paused;
1154 int i_rate = INPUT_RATE_DEFAULT;
1156 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1157 &i_rate, AOUT_MAX_ADVANCE_TIME );
1159 if( p_audio->i_pts <= VLC_TS_INVALID
1160 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1161 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1164 DecoderWaitDate( p_dec, &b_reject,
1165 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1167 if( unlikely(p_owner->b_paused != b_paused) )
1168 continue; /* race with input thread? retry... */
1169 if( p_aout == NULL )
1174 assert( !p_owner->b_paused );
1175 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1176 *pi_played_sum += 1;
1177 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1181 msg_Dbg( p_dec, "discarded audio buffer" );
1183 block_Release( p_audio );
1188 vlc_mutex_unlock( &p_owner->lock );
1191 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1193 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1194 block_t *p_aout_buf;
1200 /* Play a NULL block to output buffered frames */
1201 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1203 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1205 if( DecoderIsExitRequested( p_dec ) )
1207 /* It prevent freezing VLC in case of broken decoder */
1208 block_Release( p_aout_buf );
1210 block_Release( p_block );
1215 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1216 p_aout_buf->i_pts < p_owner->i_preroll_end )
1218 block_Release( p_aout_buf );
1222 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1224 msg_Dbg( p_dec, "End of audio preroll" );
1225 if( p_owner->p_aout )
1226 aout_DecFlush( p_owner->p_aout );
1228 p_owner->i_preroll_end = VLC_TS_INVALID;
1231 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1234 /* Update ugly stat */
1235 input_thread_t *p_input = p_owner->p_input;
1237 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1239 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1240 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1241 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1242 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1243 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1246 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1248 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1251 bool b_processed = false;
1255 assert( p_dec_cc->pf_get_cc != NULL );
1257 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1258 if( !p_owner->cc.b_supported )
1261 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1265 vlc_mutex_lock( &p_owner->lock );
1266 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1268 p_owner->cc.pb_present[i] |= pb_present[i];
1269 if( p_owner->cc.pp_decoder[i] )
1273 for( i = 0; i < 4; i++ )
1275 if( !p_owner->cc.pp_decoder[i] )
1278 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1279 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1284 vlc_mutex_unlock( &p_owner->lock );
1287 block_Release( p_cc );
1290 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1291 int *pi_played_sum, int *pi_lost_sum )
1293 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1294 vout_thread_t *p_vout = p_owner->p_vout;
1296 if( p_picture->date <= VLC_TS_INVALID )
1298 msg_Warn( p_dec, "non-dated video buffer received" );
1300 vout_ReleasePicture( p_vout, p_picture );
1305 vlc_mutex_lock( &p_owner->lock );
1307 if( p_owner->b_waiting && !p_owner->b_first )
1309 p_owner->b_has_data = true;
1310 vlc_cond_signal( &p_owner->wait_acknowledge );
1312 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1314 bool b_reject = DecoderWaitUnblock( p_dec );
1316 if( p_owner->b_waiting )
1318 assert( p_owner->b_first );
1319 msg_Dbg( p_dec, "Received first picture" );
1320 p_owner->b_first = false;
1321 p_picture->b_force = true;
1324 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1325 int i_rate = INPUT_RATE_DEFAULT;
1326 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1327 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1329 vlc_mutex_unlock( &p_owner->lock );
1332 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1337 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1339 /* Be sure to not display old picture after our own */
1340 vout_Flush( p_vout, p_picture->date );
1341 p_owner->i_last_rate = i_rate;
1343 vout_PutPicture( p_vout, p_picture );
1348 msg_Warn( p_dec, "early picture skipped" );
1350 msg_Warn( p_dec, "non-dated video buffer received" );
1353 vout_ReleasePicture( p_vout, p_picture );
1357 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1359 *pi_played_sum += i_tmp_display;
1360 *pi_lost_sum += i_tmp_lost;
1363 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1365 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1369 int i_displayed = 0;
1371 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1373 vout_thread_t *p_vout = p_owner->p_vout;
1374 if( DecoderIsExitRequested( p_dec ) )
1376 /* It prevent freezing VLC in case of broken decoder */
1377 vout_ReleasePicture( p_vout, p_pic );
1379 block_Release( p_block );
1385 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1387 vout_ReleasePicture( p_vout, p_pic );
1391 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1393 msg_Dbg( p_dec, "End of video preroll" );
1395 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1397 p_owner->i_preroll_end = VLC_TS_INVALID;
1400 if( p_dec->pf_get_cc &&
1401 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1402 DecoderGetCc( p_dec, p_dec );
1404 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1407 /* Update ugly stat */
1408 input_thread_t *p_input = p_owner->p_input;
1410 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1412 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1413 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1414 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1415 stats_Update( p_input->p->counters.p_displayed_pictures,
1417 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1421 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1423 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1424 vout_thread_t *p_vout = p_owner->p_spu_vout;
1427 if( p_subpic->i_start <= VLC_TS_INVALID )
1429 msg_Warn( p_dec, "non-dated spu buffer received" );
1430 subpicture_Delete( p_subpic );
1435 vlc_mutex_lock( &p_owner->lock );
1437 if( p_owner->b_waiting )
1439 p_owner->b_has_data = true;
1440 vlc_cond_signal( &p_owner->wait_acknowledge );
1443 bool b_reject = DecoderWaitUnblock( p_dec );
1445 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1448 if( p_subpic->i_start <= VLC_TS_INVALID )
1451 DecoderWaitDate( p_dec, &b_reject,
1452 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1453 vlc_mutex_unlock( &p_owner->lock );
1456 vout_PutSubpicture( p_vout, p_subpic );
1458 subpicture_Delete( p_subpic );
1462 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1464 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1466 assert( p_owner->p_clock );
1467 assert( !p_sout_block->p_next );
1469 vlc_mutex_lock( &p_owner->lock );
1471 if( p_owner->b_waiting )
1473 p_owner->b_has_data = true;
1474 vlc_cond_signal( &p_owner->wait_acknowledge );
1477 bool b_reject = DecoderWaitUnblock( p_dec );
1479 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1480 &p_sout_block->i_length, NULL, INT64_MAX );
1482 vlc_mutex_unlock( &p_owner->lock );
1486 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1487 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1491 block_Release( p_sout_block );
1492 return VLC_EGENERIC;
1498 /* This function process a block for sout
1500 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1502 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1503 block_t *p_sout_block;
1505 while( ( p_sout_block =
1506 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1508 if( p_owner->p_sout_input == NULL )
1510 assert( !p_owner->b_fmt_description ); // no need for owner lock
1511 es_format_Clean( &p_owner->fmt );
1512 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1514 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1515 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1516 if( p_dec->fmt_in.psz_language )
1518 free( p_owner->fmt.psz_language );
1519 p_owner->fmt.psz_language =
1520 strdup( p_dec->fmt_in.psz_language );
1523 p_owner->p_sout_input =
1524 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1526 if( p_owner->p_sout_input == NULL )
1528 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1529 (char *)&p_owner->fmt.i_codec );
1530 p_dec->b_error = true;
1532 block_ChainRelease(p_sout_block);
1537 while( p_sout_block )
1539 block_t *p_next = p_sout_block->p_next;
1541 p_sout_block->p_next = NULL;
1543 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1545 msg_Err( p_dec, "cannot continue streaming due to errors" );
1547 p_dec->b_error = true;
1550 block_ChainRelease( p_next );
1554 p_sout_block = p_next;
1560 /* This function process a video block
1562 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1564 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1566 if( p_owner->p_packetizer )
1568 block_t *p_packetized_block;
1569 decoder_t *p_packetizer = p_owner->p_packetizer;
1571 while( (p_packetized_block =
1572 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1574 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1576 es_format_Clean( &p_dec->fmt_in );
1577 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1580 /* If the packetizer provides aspect ratio information, pass it
1581 * to the decoder as a hint if the decoder itself can't provide
1582 * it. Copy it regardless of the current value of the decoder input
1583 * format aspect ratio, to properly propagate changes in aspect
1585 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1586 p_packetizer->fmt_out.video.i_sar_den > 0)
1588 p_dec->fmt_in.video.i_sar_num =
1589 p_packetizer->fmt_out.video.i_sar_num;
1590 p_dec->fmt_in.video.i_sar_den=
1591 p_packetizer->fmt_out.video.i_sar_den;
1594 if( p_packetizer->pf_get_cc )
1595 DecoderGetCc( p_dec, p_packetizer );
1597 while( p_packetized_block )
1599 block_t *p_next = p_packetized_block->p_next;
1600 p_packetized_block->p_next = NULL;
1602 DecoderDecodeVideo( p_dec, p_packetized_block );
1604 p_packetized_block = p_next;
1607 /* The packetizer does not output a block that tell the decoder to flush
1611 block_t *p_null = DecoderBlockFlushNew();
1613 DecoderDecodeVideo( p_dec, p_null );
1618 DecoderDecodeVideo( p_dec, p_block );
1621 if( b_flush && p_owner->p_vout )
1622 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1625 /* This function process a audio block
1627 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1629 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1631 if( p_owner->p_packetizer )
1633 block_t *p_packetized_block;
1634 decoder_t *p_packetizer = p_owner->p_packetizer;
1636 while( (p_packetized_block =
1637 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1639 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1641 es_format_Clean( &p_dec->fmt_in );
1642 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1645 while( p_packetized_block )
1647 block_t *p_next = p_packetized_block->p_next;
1648 p_packetized_block->p_next = NULL;
1650 DecoderDecodeAudio( p_dec, p_packetized_block );
1652 p_packetized_block = p_next;
1655 /* The packetizer does not output a block that tell the decoder to flush
1659 block_t *p_null = DecoderBlockFlushNew();
1661 DecoderDecodeAudio( p_dec, p_null );
1666 DecoderDecodeAudio( p_dec, p_block );
1669 if( b_flush && p_owner->p_aout )
1670 aout_DecFlush( p_owner->p_aout );
1673 /* This function process a subtitle block
1675 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1677 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1679 input_thread_t *p_input = p_owner->p_input;
1680 vout_thread_t *p_vout;
1681 subpicture_t *p_spu;
1683 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1685 if( p_input != NULL )
1687 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1688 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1689 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1692 p_vout = input_resource_HoldVout( p_owner->p_resource );
1693 if( p_vout && p_owner->p_spu_vout == p_vout )
1695 /* Preroll does not work very well with subtitle */
1696 if( p_spu->i_start > VLC_TS_INVALID &&
1697 p_spu->i_start < p_owner->i_preroll_end &&
1698 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1700 subpicture_Delete( p_spu );
1704 DecoderPlaySpu( p_dec, p_spu );
1709 subpicture_Delete( p_spu );
1712 vlc_object_release( p_vout );
1715 if( b_flush && p_owner->p_spu_vout )
1717 p_vout = input_resource_HoldVout( p_owner->p_resource );
1719 if( p_vout && p_owner->p_spu_vout == p_vout )
1720 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1723 vlc_object_release( p_vout );
1728 static void DecoderProcessOnFlush( decoder_t *p_dec )
1730 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1732 vlc_mutex_lock( &p_owner->lock );
1734 if( p_owner->b_flushing )
1736 p_owner->b_flushing = false;
1737 vlc_cond_signal( &p_owner->wait_acknowledge );
1739 vlc_mutex_unlock( &p_owner->lock );
1745 * \param p_dec the decoder object
1746 * \param p_block the block to decode
1747 * \return VLC_SUCCESS or an error code
1749 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1751 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1752 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1754 if( p_dec->b_error )
1757 block_Release( p_block );
1761 if( p_block && p_block->i_buffer <= 0 )
1763 assert( !b_flush_request );
1764 block_Release( p_block );
1769 if( p_owner->b_packetizer )
1772 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1774 DecoderProcessSout( p_dec, p_block );
1779 bool b_flush = false;
1783 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1784 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1786 b_flush = !b_flushing && b_flush_request;
1788 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1791 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1793 DecoderProcessAudio( p_dec, p_block, b_flush );
1795 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1797 DecoderProcessVideo( p_dec, p_block, b_flush );
1799 else if( p_dec->fmt_out.i_cat == SPU_ES )
1801 DecoderProcessSpu( p_dec, p_block, b_flush );
1805 msg_Err( p_dec, "unknown ES format" );
1806 p_dec->b_error = true;
1812 if( b_flush_request )
1813 DecoderProcessOnFlush( p_dec );
1817 * Destroys a decoder object
1819 * \param p_dec the decoder object
1822 static void DeleteDecoder( decoder_t * p_dec )
1824 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1826 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1827 (char*)&p_dec->fmt_in.i_codec,
1828 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1830 /* Free all packets still in the decoder fifo. */
1831 block_FifoEmpty( p_owner->p_fifo );
1832 block_FifoRelease( p_owner->p_fifo );
1835 if( p_owner->p_aout )
1837 /* TODO: REVISIT gap-less audio */
1838 aout_DecFlush( p_owner->p_aout );
1839 aout_DecDelete( p_owner->p_aout );
1840 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1841 if( p_owner->p_input != NULL )
1842 input_SendEventAout( p_owner->p_input );
1844 if( p_owner->p_vout )
1846 /* Hack to make sure all the the pictures are freed by the decoder
1847 * and that the vout is not paused anymore */
1848 vout_Reset( p_owner->p_vout );
1851 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1853 if( p_owner->p_input != NULL )
1854 input_SendEventVout( p_owner->p_input );
1858 if( p_owner->p_sout_input )
1860 sout_InputDelete( p_owner->p_sout_input );
1863 es_format_Clean( &p_owner->fmt );
1865 if( p_dec->fmt_out.i_cat == SPU_ES )
1867 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1870 if( p_owner->p_spu_vout == p_vout )
1871 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1872 vlc_object_release( p_vout );
1876 es_format_Clean( &p_dec->fmt_in );
1877 es_format_Clean( &p_dec->fmt_out );
1878 if( p_dec->p_description )
1879 vlc_meta_Delete( p_dec->p_description );
1880 if( p_owner->p_description )
1881 vlc_meta_Delete( p_owner->p_description );
1883 if( p_owner->p_packetizer )
1885 module_unneed( p_owner->p_packetizer,
1886 p_owner->p_packetizer->p_module );
1887 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1888 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1889 if( p_owner->p_packetizer->p_description )
1890 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1891 vlc_object_release( p_owner->p_packetizer );
1894 vlc_cond_destroy( &p_owner->wait_acknowledge );
1895 vlc_cond_destroy( &p_owner->wait_request );
1896 vlc_mutex_destroy( &p_owner->lock );
1898 vlc_object_release( p_dec );
1903 /*****************************************************************************
1904 * Buffers allocation callbacks for the decoders
1905 *****************************************************************************/
1906 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1908 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1910 vlc_assert_locked( &p_owner->lock );
1912 p_owner->b_fmt_description = true;
1914 /* Move p_description */
1915 if( p_owner->p_description && p_dec->p_description )
1916 vlc_meta_Delete( p_owner->p_description );
1917 p_owner->p_description = p_dec->p_description;
1918 p_dec->p_description = NULL;
1920 static vout_thread_t *aout_request_vout( void *p_private,
1921 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1923 decoder_t *p_dec = p_private;
1924 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1925 input_thread_t *p_input = p_owner->p_input;
1927 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1929 if( p_input != NULL )
1930 input_SendEventVout( p_input );
1935 static int aout_update_format( decoder_t *p_dec )
1937 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1940 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1942 audio_output_t *p_aout = p_owner->p_aout;
1944 /* Parameters changed, restart the aout */
1945 vlc_mutex_lock( &p_owner->lock );
1947 aout_DecDelete( p_owner->p_aout );
1948 p_owner->p_aout = NULL;
1950 vlc_mutex_unlock( &p_owner->lock );
1951 input_resource_PutAout( p_owner->p_resource, p_aout );
1954 if( p_owner->p_aout == NULL )
1956 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1958 audio_sample_format_t format = p_dec->fmt_out.audio;
1959 aout_FormatPrepare( &format );
1961 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1962 if( i_force_dolby &&
1963 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1964 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1966 if( i_force_dolby == 1 )
1968 format.i_original_channels = format.i_original_channels |
1969 AOUT_CHAN_DOLBYSTEREO;
1971 else /* i_force_dolby == 2 */
1973 format.i_original_channels = format.i_original_channels &
1974 ~AOUT_CHAN_DOLBYSTEREO;
1978 aout_request_vout_t request_vout = {
1979 .pf_request_vout = aout_request_vout,
1982 audio_output_t *p_aout;
1984 p_aout = input_resource_GetAout( p_owner->p_resource );
1987 if( aout_DecNew( p_aout, &format,
1988 &p_dec->fmt_out.audio_replay_gain,
1991 input_resource_PutAout( p_owner->p_resource, p_aout );
1996 vlc_mutex_lock( &p_owner->lock );
1998 p_owner->p_aout = p_aout;
2000 es_format_Clean( &p_owner->fmt );
2001 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2002 aout_FormatPrepare( &p_owner->fmt.audio );
2004 DecoderUpdateFormatLocked( p_dec );
2006 if( unlikely(p_owner->b_paused) ) /* fake pause if needed */
2007 aout_DecChangePause( p_aout, true, mdate() );
2009 vlc_mutex_unlock( &p_owner->lock );
2011 if( p_owner->p_input != NULL )
2012 input_SendEventAout( p_owner->p_input );
2014 if( p_aout == NULL )
2016 msg_Err( p_dec, "failed to create audio output" );
2017 p_dec->b_error = true;
2021 p_dec->fmt_out.audio.i_bytes_per_frame =
2022 p_owner->fmt.audio.i_bytes_per_frame;
2023 p_dec->fmt_out.audio.i_frame_length =
2024 p_owner->fmt.audio.i_frame_length;
2029 static picture_t *vout_new_buffer( decoder_t *p_dec )
2031 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2033 if( p_owner->p_vout == NULL
2034 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2035 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2036 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2037 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2038 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2039 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2040 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2041 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2042 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2043 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2045 vout_thread_t *p_vout;
2047 if( !p_dec->fmt_out.video.i_width ||
2048 !p_dec->fmt_out.video.i_height )
2050 /* Can't create a new vout without display size */
2054 video_format_t fmt = p_dec->fmt_out.video;
2055 fmt.i_chroma = p_dec->fmt_out.i_codec;
2057 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2059 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2060 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2062 while( fmt.i_width % dsc->p[i].w.den )
2064 while( fmt.i_height % dsc->p[i].h.den )
2069 if( !fmt.i_visible_width || !fmt.i_visible_height )
2071 if( p_dec->fmt_in.video.i_visible_width &&
2072 p_dec->fmt_in.video.i_visible_height )
2074 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2075 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2076 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2077 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2081 fmt.i_visible_width = fmt.i_width;
2082 fmt.i_visible_height = fmt.i_height;
2088 if( fmt.i_visible_height == 1088 &&
2089 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2091 fmt.i_visible_height = 1080;
2092 if( !(fmt.i_sar_num % 136))
2094 fmt.i_sar_num *= 135;
2095 fmt.i_sar_den *= 136;
2097 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2100 if( !fmt.i_sar_num || !fmt.i_sar_den )
2106 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2107 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2109 vlc_mutex_lock( &p_owner->lock );
2111 p_vout = p_owner->p_vout;
2112 p_owner->p_vout = NULL;
2113 vlc_mutex_unlock( &p_owner->lock );
2116 switch( p_dec->fmt_in.i_codec )
2118 case VLC_CODEC_HEVC:
2119 case VLC_CODEC_H264:
2120 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2125 case VLC_CODEC_VP6F:
2133 p_vout = input_resource_RequestVout( p_owner->p_resource,
2136 p_dec->i_extra_picture_buffers + 1,
2138 vlc_mutex_lock( &p_owner->lock );
2139 p_owner->p_vout = p_vout;
2141 es_format_Clean( &p_owner->fmt );
2142 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2143 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
2145 DecoderUpdateFormatLocked( p_dec );
2147 vlc_mutex_unlock( &p_owner->lock );
2149 if( p_owner->p_input != NULL )
2150 input_SendEventVout( p_owner->p_input );
2151 if( p_vout == NULL )
2153 msg_Err( p_dec, "failed to create video output" );
2154 p_dec->b_error = true;
2159 /* Get a new picture
2163 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2166 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2170 if( DecoderIsFlushing( p_dec ) )
2174 DecoderSignalWait( p_dec, true );
2176 /* Check the decoder doesn't leak pictures */
2177 vout_FixLeaks( p_owner->p_vout );
2179 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2180 msleep( VOUT_OUTMEM_SLEEP );
2184 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
2186 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2189 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
2191 vout_HoldPicture( p_dec->p_owner->p_vout, p_pic );
2194 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
2196 vout_ReleasePicture( p_dec->p_owner->p_vout, p_pic );
2199 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2200 const subpicture_updater_t *p_updater )
2202 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2203 vout_thread_t *p_vout = NULL;
2204 subpicture_t *p_subpic;
2205 int i_attempts = 30;
2207 while( i_attempts-- )
2209 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2212 p_vout = input_resource_HoldVout( p_owner->p_resource );
2216 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2221 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2225 if( p_owner->p_spu_vout != p_vout )
2227 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2228 p_owner->i_spu_order = 0;
2229 p_owner->p_spu_vout = p_vout;
2232 p_subpic = subpicture_New( p_updater );
2235 p_subpic->i_channel = p_owner->i_spu_channel;
2236 p_subpic->i_order = p_owner->i_spu_order++;
2237 p_subpic->b_subtitle = true;
2240 vlc_object_release( p_vout );
2245 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2247 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2248 vout_thread_t *p_vout = NULL;
2250 p_vout = input_resource_HoldVout( p_owner->p_resource );
2251 if( !p_vout || p_owner->p_spu_vout != p_vout )
2254 vlc_object_release( p_vout );
2255 msg_Warn( p_dec, "no vout found, leaking subpicture" );
2259 subpicture_Delete( p_subpic );
2261 vlc_object_release( p_vout );