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 es_format_t fmt_description;
105 vlc_meta_t *p_description;
108 block_fifo_t *p_fifo;
110 /* Lock for communication with decoder thread */
112 vlc_cond_t wait_request;
113 vlc_cond_t wait_acknowledge;
115 /* -- These variables need locking on write(only) -- */
116 audio_output_t *p_aout;
118 vout_thread_t *p_vout;
120 /* -- Theses variables need locking on read *and* write -- */
144 decoder_t *pp_decoder[4];
151 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
152 * a bogus PTS and won't be displayed */
153 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
156 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
159 /*****************************************************************************
161 *****************************************************************************/
162 picture_t *decoder_NewPicture( decoder_t *p_decoder )
164 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
166 msg_Warn( p_decoder, "can't get output picture" );
169 void decoder_DeletePicture( decoder_t *p_decoder, picture_t *p_picture )
171 p_decoder->pf_vout_buffer_del( p_decoder, p_picture );
173 void decoder_LinkPicture( decoder_t *p_decoder, picture_t *p_picture )
175 p_decoder->pf_picture_link( p_decoder, p_picture );
177 void decoder_UnlinkPicture( decoder_t *p_decoder, picture_t *p_picture )
179 p_decoder->pf_picture_unlink( p_decoder, p_picture );
182 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
184 if( decoder_UpdateAudioFormat( dec ) )
187 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
188 / dec->fmt_out.audio.i_frame_length;
189 block_t *block = block_Alloc( length );
190 if( likely(block != NULL) )
192 block->i_nb_samples = samples;
193 block->i_pts = block->i_length = 0;
198 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
199 const subpicture_updater_t *p_dyn )
201 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
203 msg_Warn( p_decoder, "can't get output subpicture" );
207 void decoder_DeleteSubpicture( decoder_t *p_decoder, subpicture_t *p_subpicture )
209 p_decoder->pf_spu_buffer_del( p_decoder, p_subpicture );
212 /* decoder_GetInputAttachments:
214 int decoder_GetInputAttachments( decoder_t *p_dec,
215 input_attachment_t ***ppp_attachment,
218 if( !p_dec->pf_get_attachments )
221 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
223 /* decoder_GetDisplayDate:
225 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
227 if( !p_dec->pf_get_display_date )
228 return VLC_TS_INVALID;
230 return p_dec->pf_get_display_date( p_dec, i_ts );
232 /* decoder_GetDisplayRate:
234 int decoder_GetDisplayRate( decoder_t *p_dec )
236 if( !p_dec->pf_get_display_rate )
237 return INPUT_RATE_DEFAULT;
239 return p_dec->pf_get_display_rate( p_dec );
242 /* TODO: pass p_sout through p_resource? -- Courmisch */
243 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
244 es_format_t *fmt, input_clock_t *p_clock,
245 input_resource_t *p_resource,
246 sout_instance_t *p_sout )
248 decoder_t *p_dec = NULL;
249 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
252 /* Create the decoder configuration structure */
253 p_dec = CreateDecoder( p_parent, p_input, fmt,
254 p_sout != NULL, p_resource, p_sout );
257 msg_Err( p_parent, "could not create %s", psz_type );
258 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
259 _("VLC could not open the %s module."),
260 vlc_gettext( psz_type ) );
264 if( !p_dec->p_module )
266 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
268 DeleteDecoder( p_dec );
272 p_dec->p_owner->p_clock = p_clock;
273 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
275 if( p_dec->fmt_out.i_cat == AUDIO_ES )
276 i_priority = VLC_THREAD_PRIORITY_AUDIO;
278 i_priority = VLC_THREAD_PRIORITY_VIDEO;
280 /* Spawn the decoder thread */
281 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
283 msg_Err( p_dec, "cannot spawn decoder thread" );
284 module_unneed( p_dec, p_dec->p_module );
285 DeleteDecoder( p_dec );
294 * Spawns a new decoder thread from the input thread
296 * \param p_input the input thread
297 * \param p_es the es descriptor
298 * \return the spawned decoder object
300 decoder_t *input_DecoderNew( input_thread_t *p_input,
301 es_format_t *fmt, input_clock_t *p_clock,
302 sout_instance_t *p_sout )
304 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
305 p_input->p->p_resource, p_sout );
309 * Spawn a decoder thread outside of the input thread.
311 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, es_format_t *fmt,
312 input_resource_t *p_resource )
314 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
319 * Kills a decoder thread and waits until it's finished
321 * \param p_input the input thread
322 * \param p_es the es descriptor
325 void input_DecoderDelete( decoder_t *p_dec )
327 decoder_owner_sys_t *p_owner = p_dec->p_owner;
329 vlc_cancel( p_owner->thread );
331 /* Make sure we aren't paused/waiting/decoding anymore */
332 vlc_mutex_lock( &p_owner->lock );
333 const bool b_was_paused = p_owner->b_paused;
334 p_owner->b_paused = false;
335 p_owner->b_waiting = false;
336 p_owner->b_flushing = true;
337 p_owner->b_exit = true;
338 vlc_cond_signal( &p_owner->wait_request );
339 vlc_mutex_unlock( &p_owner->lock );
341 vlc_join( p_owner->thread, NULL );
342 p_owner->b_paused = b_was_paused;
344 module_unneed( p_dec, p_dec->p_module );
347 if( p_dec->p_owner->cc.b_supported )
350 for( i = 0; i < 4; i++ )
351 input_DecoderSetCcState( p_dec, false, i );
355 DeleteDecoder( p_dec );
359 * Put a block_t in the decoder's fifo.
360 * Thread-safe w.r.t. the decoder. May be a cancellation point.
362 * \param p_dec the decoder object
363 * \param p_block the data block
365 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
367 decoder_owner_sys_t *p_owner = p_dec->p_owner;
371 /* The fifo is not consumed when waiting and so will
373 * There is no need to lock as b_waiting is never modified
374 * inside decoder thread. */
375 if( !p_owner->b_waiting )
376 block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
379 else if( block_FifoSize( p_owner->p_fifo ) > 50*1024*1024 /* 50 MiB */ )
381 else if( block_FifoSize( p_owner->p_fifo ) > 400*1024*1024 /* 400 MiB, ie ~ 50mb/s for 60s */ )
384 /* FIXME: ideally we would check the time amount of data
385 * in the FIFO instead of its size. */
386 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
387 "consumed quickly enough), resetting fifo!" );
388 block_FifoEmpty( p_owner->p_fifo );
391 block_FifoPut( p_owner->p_fifo, p_block );
394 bool input_DecoderIsEmpty( decoder_t * p_dec )
396 decoder_owner_sys_t *p_owner = p_dec->p_owner;
397 assert( !p_owner->b_waiting );
399 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
403 vlc_mutex_lock( &p_owner->lock );
404 /* TODO subtitles support */
405 if( p_dec->fmt_out.i_cat == VIDEO_ES && p_owner->p_vout )
406 b_empty = vout_IsEmpty( p_owner->p_vout );
407 else if( p_dec->fmt_out.i_cat == AUDIO_ES && p_owner->p_aout )
408 b_empty = aout_DecIsEmpty( p_owner->p_aout );
409 vlc_mutex_unlock( &p_owner->lock );
414 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
416 decoder_owner_sys_t *p_owner = p_dec->p_owner;
419 vlc_mutex_lock( &p_owner->lock );
420 for( i = 0; i < 4; i++ )
421 pb_present[i] = p_owner->cc.pb_present[i];
422 vlc_mutex_unlock( &p_owner->lock );
424 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
426 decoder_owner_sys_t *p_owner = p_dec->p_owner;
428 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
430 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
435 static const vlc_fourcc_t fcc[4] = {
436 VLC_FOURCC('c', 'c', '1', ' '),
437 VLC_FOURCC('c', 'c', '2', ' '),
438 VLC_FOURCC('c', 'c', '3', ' '),
439 VLC_FOURCC('c', 'c', '4', ' '),
444 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
445 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
446 p_dec->p_owner->p_clock, p_owner->p_sout );
449 msg_Err( p_dec, "could not create decoder" );
450 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
451 _("VLC could not open the decoder module.") );
454 else if( !p_cc->p_module )
456 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
457 input_DecoderDelete(p_cc);
460 p_cc->p_owner->p_clock = p_owner->p_clock;
462 vlc_mutex_lock( &p_owner->lock );
463 p_owner->cc.pp_decoder[i_channel] = p_cc;
464 vlc_mutex_unlock( &p_owner->lock );
470 vlc_mutex_lock( &p_owner->lock );
471 p_cc = p_owner->cc.pp_decoder[i_channel];
472 p_owner->cc.pp_decoder[i_channel] = NULL;
473 vlc_mutex_unlock( &p_owner->lock );
476 input_DecoderDelete(p_cc);
480 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
482 decoder_owner_sys_t *p_owner = p_dec->p_owner;
485 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
488 vlc_mutex_lock( &p_owner->lock );
489 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
490 vlc_mutex_unlock( &p_owner->lock );
494 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
496 decoder_owner_sys_t *p_owner = p_dec->p_owner;
498 vlc_mutex_lock( &p_owner->lock );
499 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
500 * while the input is paused (e.g. add sub file), then b_paused is
501 * (incorrectly) false. */
502 if( likely(p_owner->b_paused != b_paused) ) {
503 p_owner->b_paused = b_paused;
504 p_owner->pause.i_date = i_date;
505 p_owner->pause.i_ignore = 0;
506 vlc_cond_signal( &p_owner->wait_request );
508 /* XXX only audio and video output have to be paused.
509 * - for sout it is useless
510 * - for subs, it is done by the vout
512 if( p_dec->fmt_out.i_cat == AUDIO_ES )
514 if( p_owner->p_aout )
515 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
517 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
519 if( p_owner->p_vout )
520 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
523 vlc_mutex_unlock( &p_owner->lock );
526 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
528 decoder_owner_sys_t *p_owner = p_dec->p_owner;
530 vlc_mutex_lock( &p_owner->lock );
531 p_owner->i_ts_delay = i_delay;
532 vlc_mutex_unlock( &p_owner->lock );
535 void input_DecoderStartWait( decoder_t *p_dec )
537 decoder_owner_sys_t *p_owner = p_dec->p_owner;
539 vlc_mutex_lock( &p_owner->lock );
541 DecoderFlush( p_dec );
543 p_owner->b_first = true;
544 p_owner->b_has_data = false;
546 p_owner->b_waiting = true;
548 vlc_cond_signal( &p_owner->wait_request );
550 vlc_mutex_unlock( &p_owner->lock );
553 void input_DecoderStopWait( decoder_t *p_dec )
555 decoder_owner_sys_t *p_owner = p_dec->p_owner;
557 vlc_mutex_lock( &p_owner->lock );
559 p_owner->b_waiting = false;
561 vlc_cond_signal( &p_owner->wait_request );
563 vlc_mutex_unlock( &p_owner->lock );
566 void input_DecoderWait( decoder_t *p_dec )
568 decoder_owner_sys_t *p_owner = p_dec->p_owner;
570 vlc_mutex_lock( &p_owner->lock );
572 while( p_owner->b_waiting && !p_owner->b_has_data )
574 block_FifoWake( p_owner->p_fifo );
575 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
578 vlc_mutex_unlock( &p_owner->lock );
581 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
583 decoder_owner_sys_t *p_owner = p_dec->p_owner;
587 vlc_mutex_lock( &p_owner->lock );
588 if( p_dec->fmt_out.i_cat == VIDEO_ES )
590 if( p_owner->b_paused && p_owner->p_vout )
592 vout_NextPicture( p_owner->p_vout, pi_duration );
593 p_owner->pause.i_ignore++;
594 vlc_cond_signal( &p_owner->wait_request );
599 /* TODO subtitle should not be flushed */
600 DecoderFlush( p_dec );
602 vlc_mutex_unlock( &p_owner->lock );
605 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
607 decoder_owner_sys_t *p_owner = p_dec->p_owner;
610 vlc_mutex_lock( &p_owner->lock );
611 b_changed = p_owner->b_fmt_description;
615 es_format_Copy( p_fmt, &p_owner->fmt_description );
620 if( p_owner->p_description )
622 *pp_meta = vlc_meta_New();
624 vlc_meta_Merge( *pp_meta, p_owner->p_description );
627 p_owner->b_fmt_description = false;
629 vlc_mutex_unlock( &p_owner->lock );
633 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
635 decoder_owner_sys_t *p_owner = p_dec->p_owner;
637 return block_FifoSize( p_owner->p_fifo );
640 void input_DecoderGetObjects( decoder_t *p_dec,
641 vout_thread_t **pp_vout, audio_output_t **pp_aout )
643 decoder_owner_sys_t *p_owner = p_dec->p_owner;
645 vlc_mutex_lock( &p_owner->lock );
647 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
649 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
650 vlc_mutex_unlock( &p_owner->lock );
653 /*****************************************************************************
655 *****************************************************************************/
656 static int DecoderGetInputAttachments( decoder_t *p_dec,
657 input_attachment_t ***ppp_attachment,
660 input_thread_t *p_input = p_dec->p_owner->p_input;
662 if( unlikely(p_input == NULL) )
664 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
665 ppp_attachment, pi_attachment );
667 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
669 decoder_owner_sys_t *p_owner = p_dec->p_owner;
671 vlc_mutex_lock( &p_owner->lock );
672 if( p_owner->b_waiting || p_owner->b_paused )
673 i_ts = VLC_TS_INVALID;
674 vlc_mutex_unlock( &p_owner->lock );
676 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
679 if( input_clock_ConvertTS( p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
680 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
681 return VLC_TS_INVALID;
686 static int DecoderGetDisplayRate( decoder_t *p_dec )
688 decoder_owner_sys_t *p_owner = p_dec->p_owner;
690 if( !p_owner->p_clock )
691 return INPUT_RATE_DEFAULT;
692 return input_clock_GetRate( p_owner->p_clock );
696 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
698 if (codec != VLC_FOURCC('u','n','d','f')) {
699 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
701 desc = N_("No description for this codec");
702 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
703 dialog_Fatal( p_dec, _("Codec not supported"),
704 _("VLC could not decode the format \"%4.4s\" (%s)"),
705 (char*)&codec, desc );
707 msg_Err( p_dec, "could not identify codec" );
708 dialog_Fatal( p_dec, _("Unidentified codec"),
709 _("VLC could not identify the audio or video codec" ) );
715 * Create a decoder object
717 * \param p_input the input thread
718 * \param p_es the es descriptor
719 * \param b_packetizer instead of a decoder
720 * \return the decoder object
722 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
723 input_thread_t *p_input,
724 es_format_t *fmt, bool b_packetizer,
725 input_resource_t *p_resource,
726 sout_instance_t *p_sout )
729 decoder_owner_sys_t *p_owner;
730 es_format_t null_es_format;
732 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
736 p_dec->pf_decode_audio = NULL;
737 p_dec->pf_decode_video = NULL;
738 p_dec->pf_decode_sub = NULL;
739 p_dec->pf_get_cc = NULL;
740 p_dec->pf_packetize = NULL;
742 /* Initialize the decoder */
743 p_dec->p_module = NULL;
745 memset( &null_es_format, 0, sizeof(es_format_t) );
746 es_format_Copy( &p_dec->fmt_in, fmt );
747 es_format_Copy( &p_dec->fmt_out, &null_es_format );
749 p_dec->p_description = NULL;
751 /* Allocate our private structure for the decoder */
752 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
753 if( unlikely(p_owner == NULL) )
755 vlc_object_release( p_dec );
758 p_owner->i_preroll_end = VLC_TS_INVALID;
759 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
760 p_owner->p_input = p_input;
761 p_owner->p_resource = p_resource;
762 p_owner->p_aout = NULL;
763 p_owner->p_vout = NULL;
764 p_owner->p_spu_vout = NULL;
765 p_owner->i_spu_channel = 0;
766 p_owner->i_spu_order = 0;
767 p_owner->p_sout = p_sout;
768 p_owner->p_sout_input = NULL;
769 p_owner->p_packetizer = NULL;
770 p_owner->b_packetizer = b_packetizer;
771 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
774 p_owner->p_fifo = block_FifoNew();
775 if( unlikely(p_owner->p_fifo == NULL) )
778 vlc_object_release( p_dec );
782 /* Set buffers allocation callbacks for the decoders */
783 p_dec->pf_aout_format_update = aout_update_format;
784 p_dec->pf_vout_buffer_new = vout_new_buffer;
785 p_dec->pf_vout_buffer_del = vout_del_buffer;
786 p_dec->pf_picture_link = vout_link_picture;
787 p_dec->pf_picture_unlink = vout_unlink_picture;
788 p_dec->pf_spu_buffer_new = spu_new_buffer;
789 p_dec->pf_spu_buffer_del = spu_del_buffer;
791 p_dec->pf_get_attachments = DecoderGetInputAttachments;
792 p_dec->pf_get_display_date = DecoderGetDisplayDate;
793 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
795 /* Find a suitable decoder/packetizer module */
797 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
799 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
801 /* Check if decoder requires already packetized data */
803 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
805 p_owner->p_packetizer =
806 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
807 if( p_owner->p_packetizer )
809 es_format_Copy( &p_owner->p_packetizer->fmt_in,
812 es_format_Copy( &p_owner->p_packetizer->fmt_out,
815 p_owner->p_packetizer->p_module =
816 module_need( p_owner->p_packetizer,
817 "packetizer", "$packetizer", false );
819 if( !p_owner->p_packetizer->p_module )
821 es_format_Clean( &p_owner->p_packetizer->fmt_in );
822 vlc_object_release( p_owner->p_packetizer );
823 p_owner->p_packetizer = NULL;
828 /* Copy ourself the input replay gain */
829 if( fmt->i_cat == AUDIO_ES )
831 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
833 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
835 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
836 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
838 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
840 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
841 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
847 vlc_mutex_init( &p_owner->lock );
848 vlc_cond_init( &p_owner->wait_request );
849 vlc_cond_init( &p_owner->wait_acknowledge );
851 p_owner->b_fmt_description = false;
852 es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
853 p_owner->p_description = NULL;
855 p_owner->b_exit = false;
857 p_owner->b_paused = false;
858 p_owner->pause.i_date = VLC_TS_INVALID;
859 p_owner->pause.i_ignore = 0;
861 p_owner->b_waiting = false;
862 p_owner->b_first = true;
863 p_owner->b_has_data = false;
865 p_owner->b_flushing = false;
868 p_owner->cc.b_supported = false;
871 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
872 p_owner->cc.b_supported = true;
873 if( p_dec->pf_get_cc )
874 p_owner->cc.b_supported = true;
877 for( unsigned i = 0; i < 4; i++ )
879 p_owner->cc.pb_present[i] = false;
880 p_owner->cc.pp_decoder[i] = NULL;
882 p_owner->i_ts_delay = 0;
887 * The decoding main loop
889 * \param p_dec the decoder
891 static void *DecoderThread( void *p_data )
893 decoder_t *p_dec = (decoder_t *)p_data;
894 decoder_owner_sys_t *p_owner = p_dec->p_owner;
896 /* The decoder's main loop */
899 block_t *p_block = block_FifoGet( p_owner->p_fifo );
901 /* Make sure there is no cancellation point other than this one^^.
902 * If you need one, be sure to push cleanup of p_block. */
903 bool end_wait = !p_block || p_block->i_flags & BLOCK_FLAG_CORE_EOS;
904 DecoderSignalWait( p_dec, end_wait );
906 input_DecoderStopWait( p_dec );
910 int canc = vlc_savecancel();
912 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
914 /* calling DecoderProcess() with NULL block will make
915 * decoders/packetizers flush their buffers */
916 block_Release( p_block );
920 DecoderProcess( p_dec, p_block );
922 vlc_restorecancel( canc );
928 static block_t *DecoderBlockFlushNew()
930 block_t *p_null = block_Alloc( 128 );
934 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
935 BLOCK_FLAG_CORRUPTED |
936 BLOCK_FLAG_CORE_FLUSH;
937 memset( p_null->p_buffer, 0, p_null->i_buffer );
942 static void DecoderFlush( decoder_t *p_dec )
944 decoder_owner_sys_t *p_owner = p_dec->p_owner;
946 vlc_assert_locked( &p_owner->lock );
949 block_FifoEmpty( p_owner->p_fifo );
951 /* Monitor for flush end */
952 p_owner->b_flushing = true;
953 vlc_cond_signal( &p_owner->wait_request );
955 /* Send a special block */
956 block_t *p_null = DecoderBlockFlushNew();
959 input_DecoderDecode( p_dec, p_null, false );
962 while( p_owner->b_flushing )
963 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
966 static void DecoderSignalWait( decoder_t *p_dec, bool b_has_data )
968 decoder_owner_sys_t *p_owner = p_dec->p_owner;
970 vlc_mutex_lock( &p_owner->lock );
972 if( p_owner->b_waiting )
975 p_owner->b_has_data = true;
976 vlc_cond_signal( &p_owner->wait_acknowledge );
979 vlc_mutex_unlock( &p_owner->lock );
982 static bool DecoderIsFlushing( decoder_t *p_dec )
984 decoder_owner_sys_t *p_owner = p_dec->p_owner;
987 vlc_mutex_lock( &p_owner->lock );
989 b_flushing = p_owner->b_flushing;
991 vlc_mutex_unlock( &p_owner->lock );
996 static bool DecoderWaitUnblock( decoder_t *p_dec )
998 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1000 vlc_assert_locked( &p_owner->lock );
1004 if( p_owner->b_flushing )
1006 if( p_owner->b_paused )
1008 if( p_owner->b_waiting && !p_owner->b_has_data )
1010 if( p_owner->pause.i_ignore > 0 )
1012 p_owner->pause.i_ignore--;
1018 if( !p_owner->b_waiting || !p_owner->b_has_data )
1021 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
1024 return p_owner->b_flushing;
1027 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
1029 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
1030 *pi_preroll = INT64_MAX;
1031 else if( p->i_dts > VLC_TS_INVALID )
1032 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
1033 else if( p->i_pts > VLC_TS_INVALID )
1034 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
1037 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
1038 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
1040 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1041 input_clock_t *p_clock = p_owner->p_clock;
1043 vlc_assert_locked( &p_owner->lock );
1045 const mtime_t i_es_delay = p_owner->i_ts_delay;
1050 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
1053 if( *pi_ts0 > VLC_TS_INVALID )
1055 *pi_ts0 += i_es_delay;
1056 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
1057 *pi_ts1 += i_es_delay;
1058 if( input_clock_ConvertTS( p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
1059 if( pi_ts1 != NULL )
1060 msg_Err(p_dec, "Could not convert timestamps %"PRId64
1061 ", %"PRId64"", *pi_ts0, *pi_ts1);
1063 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
1064 *pi_ts0 = VLC_TS_INVALID;
1069 i_rate = input_clock_GetRate( p_clock );
1072 /* Do not create ephemere data because of rounding errors */
1073 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
1077 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
1078 / INPUT_RATE_DEFAULT;
1084 static bool DecoderIsExitRequested( decoder_t *p_dec )
1086 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1088 vlc_mutex_lock( &p_owner->lock );
1089 bool b_exit = p_owner->b_exit;
1090 vlc_mutex_unlock( &p_owner->lock );
1096 * If *pb_reject, it does nothing, otherwise it waits for the given
1097 * deadline or a flush request (in which case it set *pi_reject to true.
1099 static void DecoderWaitDate( decoder_t *p_dec,
1100 bool *pb_reject, mtime_t i_deadline )
1102 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1104 vlc_assert_locked( &p_owner->lock );
1106 if( *pb_reject || i_deadline < 0 )
1111 if( p_owner->b_flushing || p_owner->b_exit )
1117 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
1118 i_deadline ) == 0 );
1121 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1122 int *pi_played_sum, int *pi_lost_sum )
1124 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1125 audio_output_t *p_aout = p_owner->p_aout;
1128 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1130 msg_Warn( p_dec, "non-dated audio buffer received" );
1132 block_Release( p_audio );
1137 vlc_mutex_lock( &p_owner->lock );
1139 if( p_audio && p_owner->b_waiting )
1141 p_owner->b_has_data = true;
1142 vlc_cond_signal( &p_owner->wait_acknowledge );
1149 bool b_reject = DecoderWaitUnblock( p_dec );
1151 b_paused = p_owner->b_paused;
1157 int i_rate = INPUT_RATE_DEFAULT;
1159 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1160 &i_rate, AOUT_MAX_ADVANCE_TIME );
1162 if( p_audio->i_pts <= VLC_TS_INVALID
1163 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1164 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1167 DecoderWaitDate( p_dec, &b_reject,
1168 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1170 if( unlikely(p_owner->b_paused != b_paused) )
1171 continue; /* race with input thread? retry... */
1172 if( p_aout == NULL )
1177 assert( !p_owner->b_paused );
1178 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1179 *pi_played_sum += 1;
1180 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1184 msg_Dbg( p_dec, "discarded audio buffer" );
1186 block_Release( p_audio );
1191 vlc_mutex_unlock( &p_owner->lock );
1194 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1196 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1197 block_t *p_aout_buf;
1203 /* Play a NULL block to output buffered frames */
1204 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1206 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1208 if( DecoderIsExitRequested( p_dec ) )
1210 /* It prevent freezing VLC in case of broken decoder */
1211 block_Release( p_aout_buf );
1213 block_Release( p_block );
1218 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1219 p_aout_buf->i_pts < p_owner->i_preroll_end )
1221 block_Release( p_aout_buf );
1225 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1227 msg_Dbg( p_dec, "End of audio preroll" );
1228 if( p_owner->p_aout )
1229 aout_DecFlush( p_owner->p_aout );
1231 p_owner->i_preroll_end = VLC_TS_INVALID;
1234 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1237 /* Update ugly stat */
1238 input_thread_t *p_input = p_owner->p_input;
1240 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1242 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1243 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1244 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1245 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1246 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1249 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
1251 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1254 bool b_processed = false;
1258 assert( p_dec_cc->pf_get_cc != NULL );
1260 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
1261 if( !p_owner->cc.b_supported )
1264 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
1268 vlc_mutex_lock( &p_owner->lock );
1269 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
1271 p_owner->cc.pb_present[i] |= pb_present[i];
1272 if( p_owner->cc.pp_decoder[i] )
1276 for( i = 0; i < 4; i++ )
1278 if( !p_owner->cc.pp_decoder[i] )
1281 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
1282 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
1287 vlc_mutex_unlock( &p_owner->lock );
1290 block_Release( p_cc );
1293 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
1294 int *pi_played_sum, int *pi_lost_sum )
1296 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1297 vout_thread_t *p_vout = p_owner->p_vout;
1299 if( p_picture->date <= VLC_TS_INVALID )
1301 msg_Warn( p_dec, "non-dated video buffer received" );
1303 vout_ReleasePicture( p_vout, p_picture );
1308 vlc_mutex_lock( &p_owner->lock );
1310 if( p_owner->b_waiting && !p_owner->b_first )
1312 p_owner->b_has_data = true;
1313 vlc_cond_signal( &p_owner->wait_acknowledge );
1315 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
1317 bool b_reject = DecoderWaitUnblock( p_dec );
1319 if( p_owner->b_waiting )
1321 assert( p_owner->b_first );
1322 msg_Dbg( p_dec, "Received first picture" );
1323 p_owner->b_first = false;
1324 p_picture->b_force = true;
1327 const bool b_dated = p_picture->date > VLC_TS_INVALID;
1328 int i_rate = INPUT_RATE_DEFAULT;
1329 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
1330 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
1332 vlc_mutex_unlock( &p_owner->lock );
1335 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
1340 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
1342 /* Be sure to not display old picture after our own */
1343 vout_Flush( p_vout, p_picture->date );
1344 p_owner->i_last_rate = i_rate;
1346 vout_PutPicture( p_vout, p_picture );
1351 msg_Warn( p_dec, "early picture skipped" );
1353 msg_Warn( p_dec, "non-dated video buffer received" );
1356 vout_ReleasePicture( p_vout, p_picture );
1360 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
1362 *pi_played_sum += i_tmp_display;
1363 *pi_lost_sum += i_tmp_lost;
1366 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
1368 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1372 int i_displayed = 0;
1374 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
1376 vout_thread_t *p_vout = p_owner->p_vout;
1377 if( DecoderIsExitRequested( p_dec ) )
1379 /* It prevent freezing VLC in case of broken decoder */
1380 vout_ReleasePicture( p_vout, p_pic );
1382 block_Release( p_block );
1388 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
1390 vout_ReleasePicture( p_vout, p_pic );
1394 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1396 msg_Dbg( p_dec, "End of video preroll" );
1398 vout_Flush( p_vout, VLC_TS_INVALID+1 );
1400 p_owner->i_preroll_end = VLC_TS_INVALID;
1403 if( p_dec->pf_get_cc &&
1404 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
1405 DecoderGetCc( p_dec, p_dec );
1407 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
1410 /* Update ugly stat */
1411 input_thread_t *p_input = p_owner->p_input;
1413 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
1415 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1416 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1417 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1418 stats_Update( p_input->p->counters.p_displayed_pictures,
1420 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1424 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1426 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1427 vout_thread_t *p_vout = p_owner->p_spu_vout;
1430 if( p_subpic->i_start <= VLC_TS_INVALID )
1432 msg_Warn( p_dec, "non-dated spu buffer received" );
1433 subpicture_Delete( p_subpic );
1438 vlc_mutex_lock( &p_owner->lock );
1440 if( p_owner->b_waiting )
1442 p_owner->b_has_data = true;
1443 vlc_cond_signal( &p_owner->wait_acknowledge );
1446 bool b_reject = DecoderWaitUnblock( p_dec );
1448 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1451 if( p_subpic->i_start <= VLC_TS_INVALID )
1454 DecoderWaitDate( p_dec, &b_reject,
1455 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1456 vlc_mutex_unlock( &p_owner->lock );
1459 vout_PutSubpicture( p_vout, p_subpic );
1461 subpicture_Delete( p_subpic );
1465 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
1467 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1469 assert( p_owner->p_clock );
1470 assert( !p_sout_block->p_next );
1472 vlc_mutex_lock( &p_owner->lock );
1474 if( p_owner->b_waiting )
1476 p_owner->b_has_data = true;
1477 vlc_cond_signal( &p_owner->wait_acknowledge );
1480 bool b_reject = DecoderWaitUnblock( p_dec );
1482 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
1483 &p_sout_block->i_length, NULL, INT64_MAX );
1485 vlc_mutex_unlock( &p_owner->lock );
1489 /* FIXME --VLC_TS_INVALID inspect stream_output*/
1490 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
1494 block_Release( p_sout_block );
1495 return VLC_EGENERIC;
1501 /* This function process a block for sout
1503 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
1505 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1506 block_t *p_sout_block;
1508 while( ( p_sout_block =
1509 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
1511 if( p_owner->p_sout_input == NULL )
1513 es_format_Clean( &p_owner->fmt );
1514 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
1516 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
1517 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
1518 if( p_dec->fmt_in.psz_language )
1520 free( p_owner->fmt.psz_language );
1521 p_owner->fmt.psz_language =
1522 strdup( p_dec->fmt_in.psz_language );
1525 p_owner->p_sout_input =
1526 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
1528 if( p_owner->p_sout_input == NULL )
1530 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
1531 (char *)&p_owner->fmt.i_codec );
1532 p_dec->b_error = true;
1534 block_ChainRelease(p_sout_block);
1539 while( p_sout_block )
1541 block_t *p_next = p_sout_block->p_next;
1543 p_sout_block->p_next = NULL;
1545 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
1547 msg_Err( p_dec, "cannot continue streaming due to errors" );
1549 p_dec->b_error = true;
1552 block_ChainRelease( p_next );
1556 p_sout_block = p_next;
1562 /* This function process a video block
1564 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1566 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1568 if( p_owner->p_packetizer )
1570 block_t *p_packetized_block;
1571 decoder_t *p_packetizer = p_owner->p_packetizer;
1573 while( (p_packetized_block =
1574 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1576 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1578 es_format_Clean( &p_dec->fmt_in );
1579 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1582 /* If the packetizer provides aspect ratio information, pass it
1583 * to the decoder as a hint if the decoder itself can't provide
1584 * it. Copy it regardless of the current value of the decoder input
1585 * format aspect ratio, to properly propagate changes in aspect
1587 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1588 p_packetizer->fmt_out.video.i_sar_den > 0)
1590 p_dec->fmt_in.video.i_sar_num =
1591 p_packetizer->fmt_out.video.i_sar_num;
1592 p_dec->fmt_in.video.i_sar_den=
1593 p_packetizer->fmt_out.video.i_sar_den;
1596 if( p_packetizer->pf_get_cc )
1597 DecoderGetCc( p_dec, p_packetizer );
1599 while( p_packetized_block )
1601 block_t *p_next = p_packetized_block->p_next;
1602 p_packetized_block->p_next = NULL;
1604 DecoderDecodeVideo( p_dec, p_packetized_block );
1606 p_packetized_block = p_next;
1609 /* The packetizer does not output a block that tell the decoder to flush
1613 block_t *p_null = DecoderBlockFlushNew();
1615 DecoderDecodeVideo( p_dec, p_null );
1620 DecoderDecodeVideo( p_dec, p_block );
1623 if( b_flush && p_owner->p_vout )
1624 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1627 /* This function process a audio block
1629 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1631 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1633 if( p_owner->p_packetizer )
1635 block_t *p_packetized_block;
1636 decoder_t *p_packetizer = p_owner->p_packetizer;
1638 while( (p_packetized_block =
1639 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1641 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1643 es_format_Clean( &p_dec->fmt_in );
1644 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1647 while( p_packetized_block )
1649 block_t *p_next = p_packetized_block->p_next;
1650 p_packetized_block->p_next = NULL;
1652 DecoderDecodeAudio( p_dec, p_packetized_block );
1654 p_packetized_block = p_next;
1657 /* The packetizer does not output a block that tell the decoder to flush
1661 block_t *p_null = DecoderBlockFlushNew();
1663 DecoderDecodeAudio( p_dec, p_null );
1668 DecoderDecodeAudio( p_dec, p_block );
1671 if( b_flush && p_owner->p_aout )
1672 aout_DecFlush( p_owner->p_aout );
1675 /* This function process a subtitle block
1677 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1679 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1681 input_thread_t *p_input = p_owner->p_input;
1682 vout_thread_t *p_vout;
1683 subpicture_t *p_spu;
1685 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1687 if( p_input != NULL )
1689 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1690 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1691 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1694 p_vout = input_resource_HoldVout( p_owner->p_resource );
1695 if( p_vout && p_owner->p_spu_vout == p_vout )
1697 /* Preroll does not work very well with subtitle */
1698 if( p_spu->i_start > VLC_TS_INVALID &&
1699 p_spu->i_start < p_owner->i_preroll_end &&
1700 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1702 subpicture_Delete( p_spu );
1706 DecoderPlaySpu( p_dec, p_spu );
1711 subpicture_Delete( p_spu );
1714 vlc_object_release( p_vout );
1717 if( b_flush && p_owner->p_spu_vout )
1719 p_vout = input_resource_HoldVout( p_owner->p_resource );
1721 if( p_vout && p_owner->p_spu_vout == p_vout )
1722 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1725 vlc_object_release( p_vout );
1730 static void DecoderProcessOnFlush( decoder_t *p_dec )
1732 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1734 vlc_mutex_lock( &p_owner->lock );
1736 if( p_owner->b_flushing )
1738 p_owner->b_flushing = false;
1739 vlc_cond_signal( &p_owner->wait_acknowledge );
1741 vlc_mutex_unlock( &p_owner->lock );
1747 * \param p_dec the decoder object
1748 * \param p_block the block to decode
1749 * \return VLC_SUCCESS or an error code
1751 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1753 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1754 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1756 if( p_dec->b_error )
1759 block_Release( p_block );
1763 if( p_block && p_block->i_buffer <= 0 )
1765 assert( !b_flush_request );
1766 block_Release( p_block );
1771 if( p_owner->b_packetizer )
1774 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1776 DecoderProcessSout( p_dec, p_block );
1781 bool b_flush = false;
1785 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1786 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1788 b_flush = !b_flushing && b_flush_request;
1790 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1793 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1795 DecoderProcessAudio( p_dec, p_block, b_flush );
1797 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1799 DecoderProcessVideo( p_dec, p_block, b_flush );
1801 else if( p_dec->fmt_out.i_cat == SPU_ES )
1803 DecoderProcessSpu( p_dec, p_block, b_flush );
1807 msg_Err( p_dec, "unknown ES format" );
1808 p_dec->b_error = true;
1814 if( b_flush_request )
1815 DecoderProcessOnFlush( p_dec );
1819 * Destroys a decoder object
1821 * \param p_dec the decoder object
1824 static void DeleteDecoder( decoder_t * p_dec )
1826 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1828 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1829 (char*)&p_dec->fmt_in.i_codec,
1830 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1832 /* Free all packets still in the decoder fifo. */
1833 block_FifoEmpty( p_owner->p_fifo );
1834 block_FifoRelease( p_owner->p_fifo );
1837 if( p_owner->p_aout )
1839 /* TODO: REVISIT gap-less audio */
1840 aout_DecFlush( p_owner->p_aout );
1841 aout_DecDelete( p_owner->p_aout );
1842 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1843 if( p_owner->p_input != NULL )
1844 input_SendEventAout( p_owner->p_input );
1846 if( p_owner->p_vout )
1848 /* Hack to make sure all the the pictures are freed by the decoder
1849 * and that the vout is not paused anymore */
1850 vout_Reset( p_owner->p_vout );
1853 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1855 if( p_owner->p_input != NULL )
1856 input_SendEventVout( p_owner->p_input );
1860 if( p_owner->p_sout_input )
1862 sout_InputDelete( p_owner->p_sout_input );
1865 es_format_Clean( &p_owner->fmt );
1867 if( p_dec->fmt_out.i_cat == SPU_ES )
1869 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1872 if( p_owner->p_spu_vout == p_vout )
1873 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1874 vlc_object_release( p_vout );
1878 es_format_Clean( &p_dec->fmt_in );
1879 es_format_Clean( &p_dec->fmt_out );
1880 if( p_dec->p_description )
1881 vlc_meta_Delete( p_dec->p_description );
1882 es_format_Clean( &p_owner->fmt_description );
1883 if( p_owner->p_description )
1884 vlc_meta_Delete( p_owner->p_description );
1886 if( p_owner->p_packetizer )
1888 module_unneed( p_owner->p_packetizer,
1889 p_owner->p_packetizer->p_module );
1890 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1891 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1892 if( p_owner->p_packetizer->p_description )
1893 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1894 vlc_object_release( p_owner->p_packetizer );
1897 vlc_cond_destroy( &p_owner->wait_acknowledge );
1898 vlc_cond_destroy( &p_owner->wait_request );
1899 vlc_mutex_destroy( &p_owner->lock );
1901 vlc_object_release( p_dec );
1906 /*****************************************************************************
1907 * Buffers allocation callbacks for the decoders
1908 *****************************************************************************/
1909 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
1911 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1913 vlc_assert_locked( &p_owner->lock );
1915 p_owner->b_fmt_description = true;
1917 /* Copy es_format */
1918 es_format_Clean( &p_owner->fmt_description );
1919 es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
1921 /* Move p_description */
1922 if( p_owner->p_description && p_dec->p_description )
1923 vlc_meta_Delete( p_owner->p_description );
1924 p_owner->p_description = p_dec->p_description;
1925 p_dec->p_description = NULL;
1927 static vout_thread_t *aout_request_vout( void *p_private,
1928 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
1930 decoder_t *p_dec = p_private;
1931 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1932 input_thread_t *p_input = p_owner->p_input;
1934 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
1936 if( p_input != NULL )
1937 input_SendEventVout( p_input );
1942 static int aout_update_format( decoder_t *p_dec )
1944 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1947 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
1949 audio_output_t *p_aout = p_owner->p_aout;
1951 /* Parameters changed, restart the aout */
1952 vlc_mutex_lock( &p_owner->lock );
1954 aout_DecDelete( p_owner->p_aout );
1955 p_owner->p_aout = NULL;
1957 vlc_mutex_unlock( &p_owner->lock );
1958 input_resource_PutAout( p_owner->p_resource, p_aout );
1961 if( p_owner->p_aout == NULL )
1963 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
1964 audio_sample_format_t format;
1965 audio_output_t *p_aout;
1966 aout_request_vout_t request_vout;
1968 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1969 p_owner->fmt.audio = p_dec->fmt_out.audio;
1970 aout_FormatPrepare( &p_owner->fmt.audio );
1972 format = p_owner->fmt.audio;
1973 if( i_force_dolby &&
1974 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
1975 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1977 if( i_force_dolby == 1 )
1979 format.i_original_channels = format.i_original_channels |
1980 AOUT_CHAN_DOLBYSTEREO;
1982 else /* i_force_dolby == 2 */
1984 format.i_original_channels = format.i_original_channels &
1985 ~AOUT_CHAN_DOLBYSTEREO;
1989 request_vout.pf_request_vout = aout_request_vout;
1990 request_vout.p_private = p_dec;
1992 assert( p_owner->p_aout == NULL );
1993 p_aout = input_resource_GetAout( p_owner->p_resource );
1996 if( aout_DecNew( p_aout, &format,
1997 &p_dec->fmt_out.audio_replay_gain,
2000 input_resource_PutAout( p_owner->p_resource, p_aout );
2005 vlc_mutex_lock( &p_owner->lock );
2007 p_owner->p_aout = p_aout;
2008 DecoderUpdateFormatLocked( p_dec );
2009 if( unlikely(p_owner->b_paused) ) /* fake pause if needed */
2010 aout_DecChangePause( p_aout, true, mdate() );
2012 vlc_mutex_unlock( &p_owner->lock );
2014 if( p_owner->p_input != NULL )
2015 input_SendEventAout( p_owner->p_input );
2017 if( p_aout == NULL )
2019 msg_Err( p_dec, "failed to create audio output" );
2020 p_dec->b_error = true;
2024 p_dec->fmt_out.audio.i_bytes_per_frame =
2025 p_owner->fmt.audio.i_bytes_per_frame;
2026 p_dec->fmt_out.audio.i_frame_length =
2027 p_owner->fmt.audio.i_frame_length;
2032 static picture_t *vout_new_buffer( decoder_t *p_dec )
2034 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2036 if( p_owner->p_vout == NULL
2037 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
2038 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
2039 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
2040 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
2041 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
2042 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
2043 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
2044 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
2045 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
2046 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
2048 vout_thread_t *p_vout;
2050 if( !p_dec->fmt_out.video.i_width ||
2051 !p_dec->fmt_out.video.i_height )
2053 /* Can't create a new vout without display size */
2057 video_format_t fmt = p_dec->fmt_out.video;
2058 fmt.i_chroma = p_dec->fmt_out.i_codec;
2059 p_owner->fmt.video = fmt;
2061 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
2063 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
2064 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
2066 while( fmt.i_width % dsc->p[i].w.den )
2068 while( fmt.i_height % dsc->p[i].h.den )
2073 if( !fmt.i_visible_width || !fmt.i_visible_height )
2075 if( p_dec->fmt_in.video.i_visible_width &&
2076 p_dec->fmt_in.video.i_visible_height )
2078 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
2079 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
2080 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
2081 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
2085 fmt.i_visible_width = fmt.i_width;
2086 fmt.i_visible_height = fmt.i_height;
2092 if( fmt.i_visible_height == 1088 &&
2093 var_CreateGetBool( p_dec, "hdtv-fix" ) )
2095 fmt.i_visible_height = 1080;
2096 if( !(fmt.i_sar_num % 136))
2098 fmt.i_sar_num *= 135;
2099 fmt.i_sar_den *= 136;
2101 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
2104 if( !fmt.i_sar_num || !fmt.i_sar_den )
2110 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
2111 fmt.i_sar_num, fmt.i_sar_den, 50000 );
2113 vlc_mutex_lock( &p_owner->lock );
2115 p_vout = p_owner->p_vout;
2116 p_owner->p_vout = NULL;
2117 vlc_mutex_unlock( &p_owner->lock );
2120 switch( p_dec->fmt_in.i_codec )
2122 case VLC_CODEC_HEVC:
2123 case VLC_CODEC_H264:
2124 case VLC_CODEC_DIRAC: /* FIXME valid ? */
2129 case VLC_CODEC_VP6F:
2137 p_vout = input_resource_RequestVout( p_owner->p_resource,
2140 p_dec->i_extra_picture_buffers + 1,
2142 vlc_mutex_lock( &p_owner->lock );
2143 p_owner->p_vout = p_vout;
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 );