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 *, bool );
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 -- */
140 decoder_t *pp_decoder[4];
147 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
148 * a bogus PTS and won't be displayed */
149 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
152 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
155 /*****************************************************************************
157 *****************************************************************************/
158 picture_t *decoder_NewPicture( decoder_t *p_decoder )
160 if( decoder_UpdateVideoFormat( 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" );
169 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
171 if( decoder_UpdateAudioFormat( dec ) )
174 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
175 / dec->fmt_out.audio.i_frame_length;
176 block_t *block = block_Alloc( length );
177 if( likely(block != NULL) )
179 block->i_nb_samples = samples;
180 block->i_pts = block->i_length = 0;
185 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
186 const subpicture_updater_t *p_dyn )
188 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
190 msg_Warn( p_decoder, "can't get output subpicture" );
194 /* decoder_GetInputAttachments:
196 int decoder_GetInputAttachments( decoder_t *p_dec,
197 input_attachment_t ***ppp_attachment,
200 if( !p_dec->pf_get_attachments )
203 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
205 /* decoder_GetDisplayDate:
207 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
209 if( !p_dec->pf_get_display_date )
210 return VLC_TS_INVALID;
212 return p_dec->pf_get_display_date( p_dec, i_ts );
214 /* decoder_GetDisplayRate:
216 int decoder_GetDisplayRate( decoder_t *p_dec )
218 if( !p_dec->pf_get_display_rate )
219 return INPUT_RATE_DEFAULT;
221 return p_dec->pf_get_display_rate( p_dec );
224 /* TODO: pass p_sout through p_resource? -- Courmisch */
225 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
226 const es_format_t *fmt, input_clock_t *p_clock,
227 input_resource_t *p_resource,
228 sout_instance_t *p_sout )
230 decoder_t *p_dec = NULL;
231 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
234 /* Create the decoder configuration structure */
235 p_dec = CreateDecoder( p_parent, p_input, fmt,
236 p_sout != NULL, p_resource, p_sout );
239 msg_Err( p_parent, "could not create %s", psz_type );
240 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
241 _("VLC could not open the %s module."),
242 vlc_gettext( psz_type ) );
246 if( !p_dec->p_module )
248 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
250 DeleteDecoder( p_dec );
254 p_dec->p_owner->p_clock = p_clock;
255 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
257 if( p_dec->fmt_out.i_cat == AUDIO_ES )
258 i_priority = VLC_THREAD_PRIORITY_AUDIO;
260 i_priority = VLC_THREAD_PRIORITY_VIDEO;
262 /* Spawn the decoder thread */
263 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
265 msg_Err( p_dec, "cannot spawn decoder thread" );
266 module_unneed( p_dec, p_dec->p_module );
267 DeleteDecoder( p_dec );
276 * Spawns a new decoder thread from the input thread
278 * \param p_input the input thread
279 * \param p_es the es descriptor
280 * \return the spawned decoder object
282 decoder_t *input_DecoderNew( input_thread_t *p_input,
283 es_format_t *fmt, input_clock_t *p_clock,
284 sout_instance_t *p_sout )
286 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
287 p_input->p->p_resource, p_sout );
291 * Spawn a decoder thread outside of the input thread.
293 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
294 input_resource_t *p_resource )
296 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
301 * Kills a decoder thread and waits until it's finished
303 * \param p_input the input thread
304 * \param p_es the es descriptor
307 void input_DecoderDelete( decoder_t *p_dec )
309 decoder_owner_sys_t *p_owner = p_dec->p_owner;
311 vlc_cancel( p_owner->thread );
313 /* Make sure we aren't paused/waiting/decoding anymore */
314 vlc_mutex_lock( &p_owner->lock );
315 p_owner->b_paused = false;
316 p_owner->b_waiting = false;
317 p_owner->b_flushing = true;
318 p_owner->b_exit = true;
319 vlc_cond_signal( &p_owner->wait_request );
320 vlc_mutex_unlock( &p_owner->lock );
322 vlc_join( p_owner->thread, NULL );
324 module_unneed( p_dec, p_dec->p_module );
327 if( p_dec->p_owner->cc.b_supported )
330 for( i = 0; i < 4; i++ )
331 input_DecoderSetCcState( p_dec, false, i );
335 DeleteDecoder( p_dec );
339 * Put a block_t in the decoder's fifo.
340 * Thread-safe w.r.t. the decoder. May be a cancellation point.
342 * \param p_dec the decoder object
343 * \param p_block the data block
345 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
347 decoder_owner_sys_t *p_owner = p_dec->p_owner;
351 /* The fifo is not consumed when waiting and so will
353 * There is no need to lock as b_waiting is never modified
354 * inside decoder thread. */
355 if( !p_owner->b_waiting )
356 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
359 else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
361 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
364 /* FIXME: ideally we would check the time amount of data
365 * in the FIFO instead of its size. */
366 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
367 "consumed quickly enough), resetting fifo!" );
368 block_FifoEmpty( p_owner->p_fifo );
371 block_FifoPut( p_owner->p_fifo, p_block );
374 bool input_DecoderIsEmpty( decoder_t * p_dec )
376 decoder_owner_sys_t *p_owner = p_dec->p_owner;
377 assert( !p_owner->b_waiting );
379 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
383 vlc_mutex_lock( &p_owner->lock );
384 /* TODO subtitles support */
385 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
386 b_empty = vout_IsEmpty( p_owner->p_vout );
387 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
388 b_empty = aout_DecIsEmpty( p_owner->p_aout );
389 vlc_mutex_unlock( &p_owner->lock );
394 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
396 decoder_owner_sys_t *p_owner = p_dec->p_owner;
399 vlc_mutex_lock( &p_owner->lock );
400 for( i = 0; i < 4; i++ )
401 pb_present[i] = p_owner->cc.pb_present[i];
402 vlc_mutex_unlock( &p_owner->lock );
404 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
406 decoder_owner_sys_t *p_owner = p_dec->p_owner;
408 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
410 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
415 static const vlc_fourcc_t fcc[4] = {
416 VLC_FOURCC('c', 'c', '1', ' '),
417 VLC_FOURCC('c', 'c', '2', ' '),
418 VLC_FOURCC('c', 'c', '3', ' '),
419 VLC_FOURCC('c', 'c', '4', ' '),
424 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
425 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
426 p_dec->p_owner->p_clock, p_owner->p_sout );
429 msg_Err( p_dec, "could not create decoder" );
430 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
431 _("VLC could not open the decoder module.") );
434 else if( !p_cc->p_module )
436 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
437 input_DecoderDelete(p_cc);
440 p_cc->p_owner->p_clock = p_owner->p_clock;
442 vlc_mutex_lock( &p_owner->lock );
443 p_owner->cc.pp_decoder[i_channel] = p_cc;
444 vlc_mutex_unlock( &p_owner->lock );
450 vlc_mutex_lock( &p_owner->lock );
451 p_cc = p_owner->cc.pp_decoder[i_channel];
452 p_owner->cc.pp_decoder[i_channel] = NULL;
453 vlc_mutex_unlock( &p_owner->lock );
456 input_DecoderDelete(p_cc);
460 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
462 decoder_owner_sys_t *p_owner = p_dec->p_owner;
465 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
468 vlc_mutex_lock( &p_owner->lock );
469 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
470 vlc_mutex_unlock( &p_owner->lock );
474 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
476 decoder_owner_sys_t *p_owner = p_dec->p_owner;
478 vlc_mutex_lock( &p_owner->lock );
479 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
480 * while the input is paused (e.g. add sub file), then b_paused is
481 * (incorrectly) false. */
482 if( likely(p_owner->b_paused != b_paused) ) {
483 p_owner->b_paused = b_paused;
484 p_owner->pause.i_date = i_date;
485 p_owner->pause.i_ignore = 0;
486 vlc_cond_signal( &p_owner->wait_request );
488 /* XXX only audio and video output have to be paused.
489 * - for sout it is useless
490 * - for subs, it is done by the vout
492 if( p_dec->fmt_out.i_cat == AUDIO_ES )
494 if( p_owner->p_aout )
495 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
497 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
499 if( p_owner->p_vout )
500 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
503 vlc_mutex_unlock( &p_owner->lock );
506 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
508 decoder_owner_sys_t *p_owner = p_dec->p_owner;
510 vlc_mutex_lock( &p_owner->lock );
511 p_owner->i_ts_delay = i_delay;
512 vlc_mutex_unlock( &p_owner->lock );
515 void input_DecoderStartWait( decoder_t *p_dec )
517 decoder_owner_sys_t *p_owner = p_dec->p_owner;
519 vlc_mutex_lock( &p_owner->lock );
521 DecoderFlush( p_dec );
523 p_owner->b_first = true;
524 p_owner->b_has_data = false;
526 p_owner->b_waiting = true;
528 vlc_cond_signal( &p_owner->wait_request );
530 vlc_mutex_unlock( &p_owner->lock );
533 void input_DecoderStopWait( decoder_t *p_dec )
535 decoder_owner_sys_t *p_owner = p_dec->p_owner;
537 vlc_mutex_lock( &p_owner->lock );
539 p_owner->b_waiting = false;
541 vlc_cond_signal( &p_owner->wait_request );
543 vlc_mutex_unlock( &p_owner->lock );
546 void input_DecoderWait( decoder_t *p_dec )
548 decoder_owner_sys_t *p_owner = p_dec->p_owner;
550 vlc_mutex_lock( &p_owner->lock );
552 while( p_owner->b_waiting && !p_owner->b_has_data )
554 block_FifoWake( p_owner->p_fifo );
555 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
558 vlc_mutex_unlock( &p_owner->lock );
561 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
563 decoder_owner_sys_t *p_owner = p_dec->p_owner;
567 vlc_mutex_lock( &p_owner->lock );
568 if( p_dec->fmt_out.i_cat == VIDEO_ES )
570 if( p_owner->b_paused && p_owner->p_vout )
572 vout_NextPicture( p_owner->p_vout, pi_duration );
573 p_owner->pause.i_ignore++;
574 vlc_cond_signal( &p_owner->wait_request );
579 /* TODO subtitle should not be flushed */
580 DecoderFlush( p_dec );
582 vlc_mutex_unlock( &p_owner->lock );
585 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
587 decoder_owner_sys_t *p_owner = p_dec->p_owner;
590 vlc_mutex_lock( &p_owner->lock );
591 b_changed = p_owner->b_fmt_description;
595 es_format_Copy( p_fmt, &p_owner->fmt );
600 if( p_owner->p_description )
602 *pp_meta = vlc_meta_New();
604 vlc_meta_Merge( *pp_meta, p_owner->p_description );
607 p_owner->b_fmt_description = false;
609 vlc_mutex_unlock( &p_owner->lock );
613 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
615 decoder_owner_sys_t *p_owner = p_dec->p_owner;
617 return block_FifoSize( p_owner->p_fifo );
620 void input_DecoderGetObjects( decoder_t *p_dec,
621 vout_thread_t **pp_vout, audio_output_t **pp_aout )
623 decoder_owner_sys_t *p_owner = p_dec->p_owner;
625 vlc_mutex_lock( &p_owner->lock );
627 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
629 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
630 vlc_mutex_unlock( &p_owner->lock );
633 /*****************************************************************************
635 *****************************************************************************/
636 static int DecoderGetInputAttachments( decoder_t *p_dec,
637 input_attachment_t ***ppp_attachment,
640 input_thread_t *p_input = p_dec->p_owner->p_input;
642 if( unlikely(p_input == NULL) )
644 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
645 ppp_attachment, pi_attachment );
647 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
649 decoder_owner_sys_t *p_owner = p_dec->p_owner;
651 vlc_mutex_lock( &p_owner->lock );
652 if( p_owner->b_waiting || p_owner->b_paused )
653 i_ts = VLC_TS_INVALID;
654 vlc_mutex_unlock( &p_owner->lock );
656 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
659 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
660 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
661 return VLC_TS_INVALID;
666 static int DecoderGetDisplayRate( decoder_t *p_dec )
668 decoder_owner_sys_t *p_owner = p_dec->p_owner;
670 if( !p_owner->p_clock )
671 return INPUT_RATE_DEFAULT;
672 return input_clock_GetRate( p_owner->p_clock );
676 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
678 if (codec != VLC_FOURCC('u','n','d','f')) {
679 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
681 desc = N_("No description for this codec");
682 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
683 dialog_Fatal( p_dec, _("Codec not supported"),
684 _("VLC could not decode the format \"%4.4s\" (%s)"),
685 (char*)&codec, desc );
687 msg_Err( p_dec, "could not identify codec" );
688 dialog_Fatal( p_dec, _("Unidentified codec"),
689 _("VLC could not identify the audio or video codec" ) );
695 * Create a decoder object
697 * \param p_input the input thread
698 * \param p_es the es descriptor
699 * \param b_packetizer instead of a decoder
700 * \return the decoder object
702 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
703 input_thread_t *p_input,
704 const es_format_t *fmt, bool b_packetizer,
705 input_resource_t *p_resource,
706 sout_instance_t *p_sout )
709 decoder_owner_sys_t *p_owner;
710 es_format_t null_es_format;
712 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
716 p_dec->pf_decode_audio = NULL;
717 p_dec->pf_decode_video = NULL;
718 p_dec->pf_decode_sub = NULL;
719 p_dec->pf_get_cc = NULL;
720 p_dec->pf_packetize = NULL;
722 /* Initialize the decoder */
723 p_dec->p_module = NULL;
725 memset( &null_es_format, 0, sizeof(es_format_t) );
726 es_format_Copy( &p_dec->fmt_in, fmt );
727 es_format_Copy( &p_dec->fmt_out, &null_es_format );
729 p_dec->p_description = NULL;
731 /* Allocate our private structure for the decoder */
732 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
733 if( unlikely(p_owner == NULL) )
735 vlc_object_release( p_dec );
738 p_owner->i_preroll_end = VLC_TS_INVALID;
739 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
740 p_owner->p_input = p_input;
741 p_owner->p_resource = p_resource;
742 p_owner->p_aout = NULL;
743 p_owner->p_vout = NULL;
744 p_owner->p_spu_vout = NULL;
745 p_owner->i_spu_channel = 0;
746 p_owner->i_spu_order = 0;
747 p_owner->p_sout = p_sout;
748 p_owner->p_sout_input = NULL;
749 p_owner->p_packetizer = NULL;
750 p_owner->b_packetizer = b_packetizer;
751 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
754 p_owner->p_fifo = block_FifoNew();
755 if( unlikely(p_owner->p_fifo == NULL) )
758 vlc_object_release( p_dec );
762 /* Set buffers allocation callbacks for the decoders */
763 p_dec->pf_aout_format_update = aout_update_format;
764 p_dec->pf_vout_format_update = vout_update_format;
765 p_dec->pf_vout_buffer_new = vout_new_buffer;
766 p_dec->pf_spu_buffer_new = spu_new_buffer;
768 p_dec->pf_get_attachments = DecoderGetInputAttachments;
769 p_dec->pf_get_display_date = DecoderGetDisplayDate;
770 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
772 /* Find a suitable decoder/packetizer module */
774 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
776 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
778 /* Check if decoder requires already packetized data */
780 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
782 p_owner->p_packetizer =
783 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
784 if( p_owner->p_packetizer )
786 es_format_Copy( &p_owner->p_packetizer->fmt_in,
789 es_format_Copy( &p_owner->p_packetizer->fmt_out,
792 p_owner->p_packetizer->p_module =
793 module_need( p_owner->p_packetizer,
794 "packetizer", "$packetizer", false );
796 if( !p_owner->p_packetizer->p_module )
798 es_format_Clean( &p_owner->p_packetizer->fmt_in );
799 vlc_object_release( p_owner->p_packetizer );
800 p_owner->p_packetizer = NULL;
805 /* Copy ourself the input replay gain */
806 if( fmt->i_cat == AUDIO_ES )
808 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
810 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
812 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
813 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
815 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
817 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
818 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
824 vlc_mutex_init( &p_owner->lock );
825 vlc_cond_init( &p_owner->wait_request );
826 vlc_cond_init( &p_owner->wait_acknowledge );
828 p_owner->b_fmt_description = false;
829 p_owner->p_description = NULL;
831 p_owner->b_exit = false;
833 p_owner->b_paused = false;
834 p_owner->pause.i_date = VLC_TS_INVALID;
835 p_owner->pause.i_ignore = 0;
837 p_owner->b_waiting = false;
838 p_owner->b_first = true;
839 p_owner->b_has_data = false;
841 p_owner->b_flushing = false;
844 p_owner->cc.b_supported = false;
847 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
848 p_owner->cc.b_supported = true;
849 if( p_dec->pf_get_cc )
850 p_owner->cc.b_supported = true;
853 for( unsigned i = 0; i < 4; i++ )
855 p_owner->cc.pb_present[i] = false;
856 p_owner->cc.pp_decoder[i] = NULL;
858 p_owner->i_ts_delay = 0;
863 * The decoding main loop
865 * \param p_dec the decoder
867 static void *DecoderThread( void *p_data )
869 decoder_t *p_dec = (decoder_t *)p_data;
870 decoder_owner_sys_t *p_owner = p_dec->p_owner;
872 /* The decoder's main loop */
875 block_t *p_block = block_FifoGet( p_owner->p_fifo );
877 /* Make sure there is no cancellation point other than this one^^.
878 * If you need one, be sure to push cleanup of p_block. */
879 bool end_wait = !p_block || p_block->i_flags & BLOCK_FLAG_CORE_EOS;
880 DecoderSignalWait( p_dec, end_wait );
882 input_DecoderStopWait( p_dec );
886 int canc = vlc_savecancel();
888 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
890 /* calling DecoderProcess() with NULL block will make
891 * decoders/packetizers flush their buffers */
892 block_Release( p_block );
896 DecoderProcess( p_dec, p_block );
898 vlc_restorecancel( canc );
904 static block_t *DecoderBlockFlushNew()
906 block_t *p_null = block_Alloc( 128 );
910 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
911 BLOCK_FLAG_CORRUPTED |
912 BLOCK_FLAG_CORE_FLUSH;
913 memset( p_null->p_buffer, 0, p_null->i_buffer );
918 static void DecoderFlush( decoder_t *p_dec )
920 decoder_owner_sys_t *p_owner = p_dec->p_owner;
922 vlc_assert_locked( &p_owner->lock );
925 block_FifoEmpty( p_owner->p_fifo );
927 p_owner->b_waiting = false;
928 /* Monitor for flush end */
929 p_owner->b_flushing = true;
930 vlc_cond_signal( &p_owner->wait_request );
932 /* Send a special block */
933 block_t *p_null = DecoderBlockFlushNew();
936 input_DecoderDecode( p_dec, p_null, false );
939 while( p_owner->b_flushing )
940 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
943 static void DecoderSignalWait( decoder_t *p_dec, bool b_has_data )
945 decoder_owner_sys_t *p_owner = p_dec->p_owner;
947 vlc_mutex_lock( &p_owner->lock );
949 if( p_owner->b_waiting )
952 p_owner->b_has_data = true;
953 vlc_cond_signal( &p_owner->wait_acknowledge );
956 vlc_mutex_unlock( &p_owner->lock );
959 static bool DecoderIsFlushing( decoder_t *p_dec )
961 decoder_owner_sys_t *p_owner = p_dec->p_owner;
964 vlc_mutex_lock( &p_owner->lock );
966 b_flushing = p_owner->b_flushing;
968 vlc_mutex_unlock( &p_owner->lock );
973 static bool DecoderWaitUnblock( decoder_t *p_dec )
975 decoder_owner_sys_t *p_owner = p_dec->p_owner;
977 vlc_assert_locked( &p_owner->lock );
981 if( p_owner->b_flushing )
983 if( p_owner->b_paused )
985 if( p_owner->b_waiting && !p_owner->b_has_data )
987 if( p_owner->pause.i_ignore > 0 )
989 p_owner->pause.i_ignore--;
995 if( !p_owner->b_waiting || !p_owner->b_has_data )
998 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1001 return p_owner->b_flushing;
1004 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1006 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1007 *pi_preroll = INT64_MAX;
1008 else if( p->i_dts > VLC_TS_INVALID )
1009 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1010 else if( p->i_pts > VLC_TS_INVALID )
1011 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1014 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1015 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1017 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1018 input_clock_t *p_clock = p_owner->p_clock;
1020 vlc_assert_locked( &p_owner->lock );
1022 const mtime_t i_es_delay = p_owner->i_ts_delay;
1027 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1030 if( *pi_ts0 > VLC_TS_INVALID )
1032 *pi_ts0 += i_es_delay;
1033 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1034 *pi_ts1 += i_es_delay;
1035 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1036 if( pi_ts1 != NULL )
1037 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1038 ", %"PRId64"", *pi_ts0, *pi_ts1);
1040 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1041 *pi_ts0 = VLC_TS_INVALID;
1046 i_rate = input_clock_GetRate( p_clock );
1049 /* Do not create ephemere data because of rounding errors */
1050 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1054 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1055 / INPUT_RATE_DEFAULT;
1061 static bool DecoderIsExitRequested( decoder_t *p_dec )
1063 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1065 vlc_mutex_lock( &p_owner->lock );
1066 bool b_exit = p_owner->b_exit;
1067 vlc_mutex_unlock( &p_owner->lock );
1073 * If *pb_reject, it does nothing, otherwise it waits for the given
1074 * deadline or a flush request (in which case it set *pi_reject to true.
1076 static void DecoderWaitDate( decoder_t *p_dec,
1077 bool *pb_reject, mtime_t i_deadline )
1079 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1081 vlc_assert_locked( &p_owner->lock );
1083 if( *pb_reject || i_deadline < 0 )
1088 if( p_owner->b_flushing || p_owner->b_exit )
1094 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1095 i_deadline ) == 0 );
1098 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1099 int *pi_played_sum, int *pi_lost_sum )
1101 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1102 audio_output_t *p_aout = p_owner->p_aout;
1105 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1107 msg_Warn( p_dec, "non-dated audio buffer received" );
1109 block_Release( p_audio );
1114 vlc_mutex_lock( &p_owner->lock );
1116 if( p_audio && p_owner->b_waiting )
1118 p_owner->b_has_data = true;
1119 vlc_cond_signal( &p_owner->wait_acknowledge );
1126 bool b_reject = DecoderWaitUnblock( p_dec );
1128 b_paused = p_owner->b_paused;
1134 int i_rate = INPUT_RATE_DEFAULT;
1136 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1137 &i_rate, AOUT_MAX_ADVANCE_TIME );
1139 if( p_audio->i_pts <= VLC_TS_INVALID
1140 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1141 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1144 DecoderWaitDate( p_dec, &b_reject,
1145 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1147 if( unlikely(p_owner->b_paused != b_paused) )
1148 continue; /* race with input thread? retry... */
1149 if( p_aout == NULL )
1154 assert( !p_owner->b_paused );
1155 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1156 *pi_played_sum += 1;
1157 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1161 msg_Dbg( p_dec, "discarded audio buffer" );
1163 block_Release( p_audio );
1168 vlc_mutex_unlock( &p_owner->lock );
1171 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1173 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1174 block_t *p_aout_buf;
1180 /* Play a NULL block to output buffered frames */
1181 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1183 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1185 if( DecoderIsExitRequested( p_dec ) )
1187 /* It prevent freezing VLC in case of broken decoder */
1188 block_Release( p_aout_buf );
1190 block_Release( p_block );
1195 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1196 p_aout_buf->i_pts < p_owner->i_preroll_end )
1198 block_Release( p_aout_buf );
1202 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1204 msg_Dbg( p_dec, "End of audio preroll" );
1205 if( p_owner->p_aout )
1206 aout_DecFlush( p_owner->p_aout );
1208 p_owner->i_preroll_end = VLC_TS_INVALID;
1211 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1214 /* Update ugly stat */
1215 input_thread_t *p_input = p_owner->p_input;
1217 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1219 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1220 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1221 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1222 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1223 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1226 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1228 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1231 bool b_processed = false;
1235 assert( p_dec_cc->pf_get_cc != NULL );
1237 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1238 if( !p_owner->cc.b_supported )
1241 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1245 vlc_mutex_lock( &p_owner->lock );
1246 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1248 p_owner->cc.pb_present[i] |= pb_present[i];
1249 if( p_owner->cc.pp_decoder[i] )
1253 for( i = 0; i < 4; i++ )
1255 if( !p_owner->cc.pp_decoder[i] )
1258 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1259 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1264 vlc_mutex_unlock( &p_owner->lock );
1267 block_Release( p_cc );
1270 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1271 int *pi_played_sum, int *pi_lost_sum )
1273 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1274 vout_thread_t *p_vout = p_owner->p_vout;
1276 if( p_picture->date <= VLC_TS_INVALID )
1278 msg_Warn( p_dec, "non-dated video buffer received" );
1280 picture_Release( p_picture );
1285 vlc_mutex_lock( &p_owner->lock );
1287 if( p_owner->b_waiting && !p_owner->b_first )
1289 p_owner->b_has_data = true;
1290 vlc_cond_signal( &p_owner->wait_acknowledge );
1292 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1294 bool b_reject = DecoderWaitUnblock( p_dec );
1296 if( p_owner->b_waiting )
1298 assert( p_owner->b_first );
1299 msg_Dbg( p_dec, "Received first picture" );
1300 p_owner->b_first = false;
1301 p_picture->b_force = true;
1304 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1305 int i_rate = INPUT_RATE_DEFAULT;
1306 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1307 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1309 vlc_mutex_unlock( &p_owner->lock );
1312 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1317 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1319 /* Be sure to not display old picture after our own */
1320 vout_Flush( p_vout, p_picture->date );
1321 p_owner->i_last_rate = i_rate;
1323 vout_PutPicture( p_vout, p_picture );
1328 msg_Warn( p_dec, "early picture skipped" );
1330 msg_Warn( p_dec, "non-dated video buffer received" );
1333 picture_Release( p_picture );
1337 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1339 *pi_played_sum += i_tmp_display;
1340 *pi_lost_sum += i_tmp_lost;
1343 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1345 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1349 int i_displayed = 0;
1351 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1353 vout_thread_t *p_vout = p_owner->p_vout;
1354 if( DecoderIsExitRequested( p_dec ) )
1356 /* It prevent freezing VLC in case of broken decoder */
1357 picture_Release( p_pic );
1359 block_Release( p_block );
1365 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1367 picture_Release( p_pic );
1371 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1373 msg_Dbg( p_dec, "End of video preroll" );
1375 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1377 p_owner->i_preroll_end = VLC_TS_INVALID;
1380 if( p_dec->pf_get_cc &&
1381 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1382 DecoderGetCc( p_dec, p_dec );
1384 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1387 /* Update ugly stat */
1388 input_thread_t *p_input = p_owner->p_input;
1390 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1392 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1393 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1394 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1395 stats_Update( p_input->p->counters.p_displayed_pictures,
1397 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1401 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1403 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1404 vout_thread_t *p_vout = p_owner->p_spu_vout;
1407 if( p_subpic->i_start <= VLC_TS_INVALID )
1409 msg_Warn( p_dec, "non-dated spu buffer received" );
1410 subpicture_Delete( p_subpic );
1415 vlc_mutex_lock( &p_owner->lock );
1417 if( p_owner->b_waiting )
1419 p_owner->b_has_data = true;
1420 vlc_cond_signal( &p_owner->wait_acknowledge );
1423 bool b_reject = DecoderWaitUnblock( p_dec );
1425 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1428 if( p_subpic->i_start <= VLC_TS_INVALID )
1431 DecoderWaitDate( p_dec, &b_reject,
1432 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1433 vlc_mutex_unlock( &p_owner->lock );
1436 vout_PutSubpicture( p_vout, p_subpic );
1438 subpicture_Delete( p_subpic );
1442 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1444 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1446 assert( p_owner->p_clock );
1447 assert( !p_sout_block->p_next );
1449 vlc_mutex_lock( &p_owner->lock );
1451 if( p_owner->b_waiting )
1453 p_owner->b_has_data = true;
1454 vlc_cond_signal( &p_owner->wait_acknowledge );
1457 bool b_reject = DecoderWaitUnblock( p_dec );
1459 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1460 &p_sout_block->i_length, NULL, INT64_MAX );
1462 vlc_mutex_unlock( &p_owner->lock );
1466 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1467 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1471 block_Release( p_sout_block );
1472 return VLC_EGENERIC;
1478 /* This function process a block for sout
1480 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1482 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1483 block_t *p_sout_block;
1485 while( ( p_sout_block =
1486 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1488 if( p_owner->p_sout_input == NULL )
1490 assert( !p_owner->b_fmt_description ); // no need for owner lock
1491 es_format_Clean( &p_owner->fmt );
1492 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1494 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1495 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1496 if( p_dec->fmt_in.psz_language )
1498 free( p_owner->fmt.psz_language );
1499 p_owner->fmt.psz_language =
1500 strdup( p_dec->fmt_in.psz_language );
1503 p_owner->p_sout_input =
1504 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1506 if( p_owner->p_sout_input == NULL )
1508 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1509 (char *)&p_owner->fmt.i_codec );
1510 p_dec->b_error = true;
1512 block_ChainRelease(p_sout_block);
1517 while( p_sout_block )
1519 block_t *p_next = p_sout_block->p_next;
1521 p_sout_block->p_next = NULL;
1523 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1525 msg_Err( p_dec, "cannot continue streaming due to errors" );
1527 p_dec->b_error = true;
1530 block_ChainRelease( p_next );
1534 p_sout_block = p_next;
1540 /* This function process a video block
1542 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1544 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1546 if( p_owner->p_packetizer )
1548 block_t *p_packetized_block;
1549 decoder_t *p_packetizer = p_owner->p_packetizer;
1551 while( (p_packetized_block =
1552 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1554 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1556 es_format_Clean( &p_dec->fmt_in );
1557 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1560 /* If the packetizer provides aspect ratio information, pass it
1561 * to the decoder as a hint if the decoder itself can't provide
1562 * it. Copy it regardless of the current value of the decoder input
1563 * format aspect ratio, to properly propagate changes in aspect
1565 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1566 p_packetizer->fmt_out.video.i_sar_den > 0)
1568 p_dec->fmt_in.video.i_sar_num =
1569 p_packetizer->fmt_out.video.i_sar_num;
1570 p_dec->fmt_in.video.i_sar_den=
1571 p_packetizer->fmt_out.video.i_sar_den;
1574 if( p_packetizer->pf_get_cc )
1575 DecoderGetCc( p_dec, p_packetizer );
1577 while( p_packetized_block )
1579 block_t *p_next = p_packetized_block->p_next;
1580 p_packetized_block->p_next = NULL;
1582 DecoderDecodeVideo( p_dec, p_packetized_block );
1584 p_packetized_block = p_next;
1587 /* The packetizer does not output a block that tell the decoder to flush
1591 block_t *p_null = DecoderBlockFlushNew();
1593 DecoderDecodeVideo( p_dec, p_null );
1598 DecoderDecodeVideo( p_dec, p_block );
1601 if( b_flush && p_owner->p_vout )
1602 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1605 /* This function process a audio block
1607 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1609 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1611 if( p_owner->p_packetizer )
1613 block_t *p_packetized_block;
1614 decoder_t *p_packetizer = p_owner->p_packetizer;
1616 while( (p_packetized_block =
1617 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1619 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1621 es_format_Clean( &p_dec->fmt_in );
1622 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1625 while( p_packetized_block )
1627 block_t *p_next = p_packetized_block->p_next;
1628 p_packetized_block->p_next = NULL;
1630 DecoderDecodeAudio( p_dec, p_packetized_block );
1632 p_packetized_block = p_next;
1635 /* The packetizer does not output a block that tell the decoder to flush
1639 block_t *p_null = DecoderBlockFlushNew();
1641 DecoderDecodeAudio( p_dec, p_null );
1646 DecoderDecodeAudio( p_dec, p_block );
1649 if( b_flush && p_owner->p_aout )
1650 aout_DecFlush( p_owner->p_aout );
1653 /* This function process a subtitle block
1655 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1657 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1659 input_thread_t *p_input = p_owner->p_input;
1660 vout_thread_t *p_vout;
1661 subpicture_t *p_spu;
1663 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1665 if( p_input != NULL )
1667 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1668 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1669 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1672 p_vout = input_resource_HoldVout( p_owner->p_resource );
1673 if( p_vout && p_owner->p_spu_vout == p_vout )
1675 /* Preroll does not work very well with subtitle */
1676 if( p_spu->i_start > VLC_TS_INVALID &&
1677 p_spu->i_start < p_owner->i_preroll_end &&
1678 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1680 subpicture_Delete( p_spu );
1684 DecoderPlaySpu( p_dec, p_spu );
1689 subpicture_Delete( p_spu );
1692 vlc_object_release( p_vout );
1695 if( b_flush && p_owner->p_spu_vout )
1697 p_vout = input_resource_HoldVout( p_owner->p_resource );
1699 if( p_vout && p_owner->p_spu_vout == p_vout )
1700 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1703 vlc_object_release( p_vout );
1708 static void DecoderProcessOnFlush( decoder_t *p_dec )
1710 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1712 vlc_mutex_lock( &p_owner->lock );
1714 if( p_owner->b_flushing )
1716 p_owner->b_flushing = false;
1717 vlc_cond_signal( &p_owner->wait_acknowledge );
1719 vlc_mutex_unlock( &p_owner->lock );
1725 * \param p_dec the decoder object
1726 * \param p_block the block to decode
1727 * \return VLC_SUCCESS or an error code
1729 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1731 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1732 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1734 if( p_dec->b_error )
1737 block_Release( p_block );
1741 if( p_block && p_block->i_buffer <= 0 )
1743 assert( !b_flush_request );
1744 block_Release( p_block );
1749 if( p_owner->b_packetizer )
1752 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1754 DecoderProcessSout( p_dec, p_block );
1759 bool b_flush = false;
1763 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1764 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1766 b_flush = !b_flushing && b_flush_request;
1768 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1771 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1773 DecoderProcessAudio( p_dec, p_block, b_flush );
1775 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1777 DecoderProcessVideo( p_dec, p_block, b_flush );
1779 else if( p_dec->fmt_out.i_cat == SPU_ES )
1781 DecoderProcessSpu( p_dec, p_block, b_flush );
1785 msg_Err( p_dec, "unknown ES format" );
1786 p_dec->b_error = true;
1792 if( b_flush_request )
1793 DecoderProcessOnFlush( p_dec );
1797 * Destroys a decoder object
1799 * \param p_dec the decoder object
1802 static void DeleteDecoder( decoder_t * p_dec )
1804 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1806 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1807 (char*)&p_dec->fmt_in.i_codec,
1808 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1810 /* Free all packets still in the decoder fifo. */
1811 block_FifoRelease( p_owner->p_fifo );
1814 if( p_owner->p_aout )
1816 /* TODO: REVISIT gap-less audio */
1817 aout_DecFlush( p_owner->p_aout );
1818 aout_DecDelete( p_owner->p_aout );
1819 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1820 if( p_owner->p_input != NULL )
1821 input_SendEventAout( p_owner->p_input );
1823 if( p_owner->p_vout )
1825 /* Hack to make sure all the the pictures are freed by the decoder
1826 * and that the vout is not paused anymore */
1827 vout_Reset( p_owner->p_vout );
1830 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1832 if( p_owner->p_input != NULL )
1833 input_SendEventVout( p_owner->p_input );
1837 if( p_owner->p_sout_input )
1839 sout_InputDelete( p_owner->p_sout_input );
1842 es_format_Clean( &p_owner->fmt );
1844 if( p_dec->fmt_out.i_cat == SPU_ES )
1846 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1849 if( p_owner->p_spu_vout == p_vout )
1850 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1851 vlc_object_release( p_vout );
1855 es_format_Clean( &p_dec->fmt_in );
1856 es_format_Clean( &p_dec->fmt_out );
1857 if( p_dec->p_description )
1858 vlc_meta_Delete( p_dec->p_description );
1859 if( p_owner->p_description )
1860 vlc_meta_Delete( p_owner->p_description );
1862 if( p_owner->p_packetizer )
1864 module_unneed( p_owner->p_packetizer,
1865 p_owner->p_packetizer->p_module );
1866 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1867 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1868 if( p_owner->p_packetizer->p_description )
1869 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1870 vlc_object_release( p_owner->p_packetizer );
1873 vlc_cond_destroy( &p_owner->wait_acknowledge );
1874 vlc_cond_destroy( &p_owner->wait_request );
1875 vlc_mutex_destroy( &p_owner->lock );
1877 vlc_object_release( p_dec );
1882 /*****************************************************************************
1883 * Buffers allocation callbacks for the decoders
1884 *****************************************************************************/
1885 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1887 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1889 vlc_assert_locked( &p_owner->lock );
1891 p_owner->b_fmt_description = true;
1893 /* Move p_description */
1894 if( p_owner->p_description && p_dec->p_description )
1895 vlc_meta_Delete( p_owner->p_description );
1896 p_owner->p_description = p_dec->p_description;
1897 p_dec->p_description = NULL;
1899 static vout_thread_t *aout_request_vout( void *p_private,
1900 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1902 decoder_t *p_dec = p_private;
1903 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1904 input_thread_t *p_input = p_owner->p_input;
1906 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1908 if( p_input != NULL )
1909 input_SendEventVout( p_input );
1914 static int aout_update_format( decoder_t *p_dec )
1916 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1919 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1921 audio_output_t *p_aout = p_owner->p_aout;
1923 /* Parameters changed, restart the aout */
1924 vlc_mutex_lock( &p_owner->lock );
1926 aout_DecDelete( p_owner->p_aout );
1927 p_owner->p_aout = NULL;
1929 vlc_mutex_unlock( &p_owner->lock );
1930 input_resource_PutAout( p_owner->p_resource, p_aout );
1933 if( p_owner->p_aout == NULL )
1935 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1937 audio_sample_format_t format = p_dec->fmt_out.audio;
1938 aout_FormatPrepare( &format );
1940 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1941 if( i_force_dolby &&
1942 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1943 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1945 if( i_force_dolby == 1 )
1947 format.i_original_channels = format.i_original_channels |
1948 AOUT_CHAN_DOLBYSTEREO;
1950 else /* i_force_dolby == 2 */
1952 format.i_original_channels = format.i_original_channels &
1953 ~AOUT_CHAN_DOLBYSTEREO;
1957 aout_request_vout_t request_vout = {
1958 .pf_request_vout = aout_request_vout,
1961 audio_output_t *p_aout;
1963 p_aout = input_resource_GetAout( p_owner->p_resource );
1966 if( aout_DecNew( p_aout, &format,
1967 &p_dec->fmt_out.audio_replay_gain,
1970 input_resource_PutAout( p_owner->p_resource, p_aout );
1975 vlc_mutex_lock( &p_owner->lock );
1977 p_owner->p_aout = p_aout;
1979 es_format_Clean( &p_owner->fmt );
1980 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1981 aout_FormatPrepare( &p_owner->fmt.audio );
1983 DecoderUpdateFormatLocked( p_dec );
1985 if( unlikely(p_owner->b_paused) && p_aout != NULL )
1986 /* fake pause if needed */
1987 aout_DecChangePause( p_aout, true, mdate() );
1989 vlc_mutex_unlock( &p_owner->lock );
1991 if( p_owner->p_input != NULL )
1992 input_SendEventAout( p_owner->p_input );
1994 if( p_aout == NULL )
1996 msg_Err( p_dec, "failed to create audio output" );
1997 p_dec->b_error = true;
2001 p_dec->fmt_out.audio.i_bytes_per_frame =
2002 p_owner->fmt.audio.i_bytes_per_frame;
2003 p_dec->fmt_out.audio.i_frame_length =
2004 p_owner->fmt.audio.i_frame_length;
2009 static int vout_update_format( decoder_t *p_dec )
2011 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2013 if( p_owner->p_vout == NULL
2014 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2015 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2016 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2017 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2018 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2019 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2020 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2021 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2022 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2023 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2025 vout_thread_t *p_vout;
2027 if( !p_dec->fmt_out.video.i_width ||
2028 !p_dec->fmt_out.video.i_height )
2030 /* Can't create a new vout without display size */
2034 video_format_t fmt = p_dec->fmt_out.video;
2035 fmt.i_chroma = p_dec->fmt_out.i_codec;
2037 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2039 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2040 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2042 while( fmt.i_width % dsc->p[i].w.den )
2044 while( fmt.i_height % dsc->p[i].h.den )
2049 if( !fmt.i_visible_width || !fmt.i_visible_height )
2051 if( p_dec->fmt_in.video.i_visible_width &&
2052 p_dec->fmt_in.video.i_visible_height )
2054 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2055 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2056 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2057 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2061 fmt.i_visible_width = fmt.i_width;
2062 fmt.i_visible_height = fmt.i_height;
2068 if( fmt.i_visible_height == 1088 &&
2069 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2071 fmt.i_visible_height = 1080;
2072 if( !(fmt.i_sar_num % 136))
2074 fmt.i_sar_num *= 135;
2075 fmt.i_sar_den *= 136;
2077 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2080 if( !fmt.i_sar_num || !fmt.i_sar_den )
2086 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2087 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2089 vlc_mutex_lock( &p_owner->lock );
2091 p_vout = p_owner->p_vout;
2092 p_owner->p_vout = NULL;
2093 vlc_mutex_unlock( &p_owner->lock );
2096 switch( p_dec->fmt_in.i_codec )
2098 case VLC_CODEC_HEVC:
2099 case VLC_CODEC_H264:
2100 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2105 case VLC_CODEC_VP6F:
2113 p_vout = input_resource_RequestVout( p_owner->p_resource,
2116 p_dec->i_extra_picture_buffers + 1,
2118 vlc_mutex_lock( &p_owner->lock );
2119 p_owner->p_vout = p_vout;
2121 es_format_Clean( &p_owner->fmt );
2122 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
2123 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
2125 DecoderUpdateFormatLocked( p_dec );
2127 vlc_mutex_unlock( &p_owner->lock );
2129 if( p_owner->p_input != NULL )
2130 input_SendEventVout( p_owner->p_input );
2131 if( p_vout == NULL )
2133 msg_Err( p_dec, "failed to create video output" );
2134 p_dec->b_error = true;
2141 static picture_t *vout_new_buffer( decoder_t *p_dec )
2143 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2147 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2150 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
2154 if( DecoderIsFlushing( p_dec ) )
2158 DecoderSignalWait( p_dec, true );
2160 /* Check the decoder doesn't leak pictures */
2161 vout_FixLeaks( p_owner->p_vout );
2163 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
2164 msleep( VOUT_OUTMEM_SLEEP );
2168 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
2169 const subpicture_updater_t *p_updater )
2171 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2172 vout_thread_t *p_vout = NULL;
2173 subpicture_t *p_subpic;
2174 int i_attempts = 30;
2176 while( i_attempts-- )
2178 if( DecoderIsExitRequested( p_dec ) || p_dec->b_error )
2181 p_vout = input_resource_HoldVout( p_owner->p_resource );
2185 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
2190 msg_Warn( p_dec, "no vout found, dropping subpicture" );
2194 if( p_owner->p_spu_vout != p_vout )
2196 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
2197 p_owner->i_spu_order = 0;
2198 p_owner->p_spu_vout = p_vout;
2201 p_subpic = subpicture_New( p_updater );
2204 p_subpic->i_channel = p_owner->i_spu_channel;
2205 p_subpic->i_order = p_owner->i_spu_order++;
2206 p_subpic->b_subtitle = true;
2209 vlc_object_release( p_vout );