1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 * Laurent Aimar <fenrir@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
34 #include <vlc_common.h>
36 #include <vlc_block.h>
40 #include <vlc_codec.h>
43 #include <vlc_interface.h>
44 #include "audio_output/aout_internal.h"
45 #include "stream_output/stream_output.h"
46 #include "input_internal.h"
48 static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int );
49 static void DeleteDecoder( decoder_t * );
51 static int DecoderThread( decoder_t * );
52 static int DecoderDecode( decoder_t * p_dec, block_t *p_block );
54 /* Buffers allocation callbacks for the decoders */
55 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
56 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
58 static picture_t *vout_new_buffer( decoder_t * );
59 static void vout_del_buffer( decoder_t *, picture_t * );
60 static void vout_link_picture( decoder_t *, picture_t * );
61 static void vout_unlink_picture( decoder_t *, picture_t * );
63 static subpicture_t *spu_new_buffer( decoder_t * );
64 static void spu_del_buffer( decoder_t *, subpicture_t * );
66 static es_format_t null_es_format;
68 struct decoder_owner_sys_t
72 int64_t i_preroll_end;
74 input_thread_t *p_input;
76 aout_instance_t *p_aout;
77 aout_input_t *p_aout_input;
79 vout_thread_t *p_vout;
81 vout_thread_t *p_spu_vout;
84 sout_instance_t *p_sout;
85 sout_packetizer_input_t *p_sout_input;
87 /* Some decoders require already packetized data (ie. not truncated) */
88 decoder_t *p_packetizer;
90 /* Current format in use by the output */
101 bool pb_cc_present[4];
106 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
108 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
109 "VLC probably does not support this sound or video format.",
111 intf_UserFatal( p_dec, false, _("No suitable decoder module"),
112 _("VLC does not support the audio or video format \"%4.4s\". "
113 "Unfortunately there is no way for you to fix this."), (char*)&codec );
116 /* decoder_GetInputAttachment:
118 input_attachment_t *decoder_GetInputAttachment( decoder_t *p_dec,
119 const char *psz_name )
121 input_attachment_t *p_attachment;
122 if( input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENT, &p_attachment, psz_name ) )
126 /* decoder_GetInputAttachments:
128 int decoder_GetInputAttachments( decoder_t *p_dec,
129 input_attachment_t ***ppp_attachment,
132 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
133 ppp_attachment, pi_attachment );
135 /* decoder_GetDisplayDate:
137 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
144 * Spawns a new decoder thread
146 * \param p_input the input thread
147 * \param p_es the es descriptor
148 * \return the spawned decoder object
150 decoder_t *input_DecoderNew( input_thread_t *p_input,
151 es_format_t *fmt, bool b_force_decoder )
153 decoder_t *p_dec = NULL;
157 (void)b_force_decoder;
159 /* If we are in sout mode, search for packetizer module */
160 if( p_input->p->p_sout && !b_force_decoder )
162 /* Create the decoder configuration structure */
163 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER );
166 msg_Err( p_input, "could not create packetizer" );
167 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
168 _("VLC could not open the packetizer module.") );
175 /* Create the decoder configuration structure */
176 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER );
179 msg_Err( p_input, "could not create decoder" );
180 intf_UserFatal( p_input, false, _("Streaming / Transcoding failed"),
181 _("VLC could not open the decoder module.") );
186 if( !p_dec->p_module )
188 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
190 DeleteDecoder( p_dec );
191 vlc_object_release( p_dec );
195 if( p_input->p->p_sout && p_input->p->input.b_can_pace_control &&
198 msg_Dbg( p_input, "stream out mode -> no decoder thread" );
199 p_dec->p_owner->b_own_thread = false;
203 var_Get( p_input, "minimize-threads", &val );
204 p_dec->p_owner->b_own_thread = !val.b_bool;
207 if( p_dec->p_owner->b_own_thread )
210 if( fmt->i_cat == AUDIO_ES )
211 i_priority = VLC_THREAD_PRIORITY_AUDIO;
213 i_priority = VLC_THREAD_PRIORITY_VIDEO;
215 /* Spawn the decoder thread */
216 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
217 i_priority, false ) )
219 msg_Err( p_dec, "cannot spawn decoder thread" );
220 module_Unneed( p_dec, p_dec->p_module );
221 DeleteDecoder( p_dec );
222 vlc_object_release( p_dec );
231 * Kills a decoder thread and waits until it's finished
233 * \param p_input the input thread
234 * \param p_es the es descriptor
237 void input_DecoderDelete( decoder_t *p_dec )
239 vlc_object_kill( p_dec );
241 if( p_dec->p_owner->b_own_thread )
243 /* Make sure the thread leaves the function by
244 * sending it an empty block. */
245 block_t *p_block = block_New( p_dec, 0 );
246 input_DecoderDecode( p_dec, p_block );
248 vlc_thread_join( p_dec );
250 /* Don't module_Unneed() here because of the dll loader that wants
251 * close() in the same thread than open()/decode() */
256 input_DecoderDecode( p_dec, NULL );
258 module_Unneed( p_dec, p_dec->p_module );
262 if( p_dec->p_owner->b_cc_supported )
265 for( i = 0; i < 4; i++ )
266 input_DecoderSetCcState( p_dec, false, i );
269 /* Delete decoder configuration */
270 DeleteDecoder( p_dec );
272 /* Delete the decoder */
273 vlc_object_release( p_dec );
277 * Put a block_t in the decoder's fifo.
279 * \param p_dec the decoder object
280 * \param p_block the data block
282 void input_DecoderDecode( decoder_t * p_dec, block_t *p_block )
284 if( p_dec->p_owner->b_own_thread )
286 if( p_dec->p_owner->p_input->p->b_out_pace_control )
289 while( !p_dec->b_die && !p_dec->b_error &&
290 block_FifoCount( p_dec->p_owner->p_fifo ) > 10 )
295 else if( block_FifoSize( p_dec->p_owner->p_fifo ) > 50000000 /* 50 MB */ )
297 /* FIXME: ideally we would check the time amount of data
298 * in the fifo instead of its size. */
299 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
300 "consumed quickly enough), resetting fifo!" );
301 block_FifoEmpty( p_dec->p_owner->p_fifo );
304 block_FifoPut( p_dec->p_owner->p_fifo, p_block );
308 if( p_dec->b_error || (p_block && p_block->i_buffer <= 0) )
310 if( p_block ) block_Release( p_block );
314 DecoderDecode( p_dec, p_block );
319 void input_DecoderDiscontinuity( decoder_t * p_dec, bool b_flush )
324 if( p_dec->p_owner->b_own_thread && b_flush )
325 block_FifoEmpty( p_dec->p_owner->p_fifo );
327 /* Send a special block */
328 p_null = block_New( p_dec, 128 );
329 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
330 /* FIXME check for p_packetizer or b_packitized from es_format_t of input ? */
331 if( p_dec->p_owner->p_packetizer && b_flush )
332 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
333 memset( p_null->p_buffer, 0, p_null->i_buffer );
335 input_DecoderDecode( p_dec, p_null );
338 bool input_DecoderEmpty( decoder_t * p_dec )
340 if( p_dec->p_owner->b_own_thread
341 && block_FifoCount( p_dec->p_owner->p_fifo ) > 0 )
348 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
352 vlc_mutex_lock( &p_dec->p_owner->lock_cc );
353 for( i = 0; i < 4; i++ )
354 pb_present[i] = p_dec->p_owner->pb_cc_present[i];
355 vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
357 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
359 decoder_owner_sys_t *p_owner = p_dec->p_owner;
361 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
363 if( i_channel < 0 || i_channel >= 4 || !p_owner->pb_cc_present[i_channel] )
368 static const vlc_fourcc_t fcc[4] = {
369 VLC_FOURCC('c', 'c', '1', ' '),
370 VLC_FOURCC('c', 'c', '2', ' '),
371 VLC_FOURCC('c', 'c', '3', ' '),
372 VLC_FOURCC('c', 'c', '4', ' '),
377 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
378 p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER );
381 msg_Err( p_dec, "could not create decoder" );
382 intf_UserFatal( p_dec, false, _("Streaming / Transcoding failed"),
383 _("VLC could not open the decoder module.") );
386 else if( !p_cc->p_module )
388 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
389 DeleteDecoder( p_cc );
390 vlc_object_release( p_cc );
394 vlc_mutex_lock( &p_owner->lock_cc );
395 p_dec->p_owner->pp_cc[i_channel] = p_cc;
396 vlc_mutex_unlock( &p_owner->lock_cc );
402 vlc_mutex_lock( &p_owner->lock_cc );
403 p_cc = p_dec->p_owner->pp_cc[i_channel];
404 p_dec->p_owner->pp_cc[i_channel] = NULL;
405 vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
409 vlc_object_kill( p_cc );
410 module_Unneed( p_cc, p_cc->p_module );
411 DeleteDecoder( p_cc );
412 vlc_object_release( p_cc );
417 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
419 decoder_owner_sys_t *p_owner = p_dec->p_owner;
422 if( i_channel < 0 || i_channel >= 4 || !p_owner->pb_cc_present[i_channel] )
425 vlc_mutex_lock( &p_owner->lock_cc );
426 *pb_decode = p_dec->p_owner->pp_cc[i_channel] != NULL;
427 vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
432 * Create a decoder object
434 * \param p_input the input thread
435 * \param p_es the es descriptor
436 * \param i_object_type Object type as define in include/vlc_objects.h
437 * \return the decoder object
439 static decoder_t * CreateDecoder( input_thread_t *p_input,
440 es_format_t *fmt, int i_object_type )
443 decoder_owner_sys_t *p_owner;
446 p_dec = vlc_object_create( p_input, i_object_type );
450 p_dec->pf_decode_audio = 0;
451 p_dec->pf_decode_video = 0;
452 p_dec->pf_decode_sub = 0;
453 p_dec->pf_get_cc = 0;
454 p_dec->pf_packetize = 0;
456 /* Initialize the decoder fifo */
457 p_dec->p_module = NULL;
459 memset( &null_es_format, 0, sizeof(es_format_t) );
460 es_format_Copy( &p_dec->fmt_in, fmt );
461 es_format_Copy( &p_dec->fmt_out, &null_es_format );
463 /* Allocate our private structure for the decoder */
464 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
465 if( p_dec->p_owner == NULL )
467 vlc_object_release( p_dec );
470 p_dec->p_owner->b_own_thread = true;
471 p_dec->p_owner->i_preroll_end = -1;
472 p_dec->p_owner->p_input = p_input;
473 p_dec->p_owner->p_aout = NULL;
474 p_dec->p_owner->p_aout_input = NULL;
475 p_dec->p_owner->p_vout = NULL;
476 p_dec->p_owner->p_spu_vout = NULL;
477 p_dec->p_owner->i_spu_channel = 0;
478 p_dec->p_owner->p_sout = p_input->p->p_sout;
479 p_dec->p_owner->p_sout_input = NULL;
480 p_dec->p_owner->p_packetizer = NULL;
483 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
485 free( p_dec->p_owner );
486 vlc_object_release( p_dec );
490 /* Set buffers allocation callbacks for the decoders */
491 p_dec->pf_aout_buffer_new = aout_new_buffer;
492 p_dec->pf_aout_buffer_del = aout_del_buffer;
493 p_dec->pf_vout_buffer_new = vout_new_buffer;
494 p_dec->pf_vout_buffer_del = vout_del_buffer;
495 p_dec->pf_picture_link = vout_link_picture;
496 p_dec->pf_picture_unlink = vout_unlink_picture;
497 p_dec->pf_spu_buffer_new = spu_new_buffer;
498 p_dec->pf_spu_buffer_del = spu_del_buffer;
500 vlc_object_attach( p_dec, p_input );
502 /* Find a suitable decoder/packetizer module */
503 if( i_object_type == VLC_OBJECT_DECODER )
504 p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
506 p_dec->p_module = module_Need( p_dec, "packetizer", "$packetizer", 0 );
508 /* Check if decoder requires already packetized data */
509 if( i_object_type == VLC_OBJECT_DECODER &&
510 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
512 p_dec->p_owner->p_packetizer =
513 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
514 if( p_dec->p_owner->p_packetizer )
516 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
519 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
522 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
524 p_dec->p_owner->p_packetizer->p_module =
525 module_Need( p_dec->p_owner->p_packetizer,
526 "packetizer", "$packetizer", 0 );
528 if( !p_dec->p_owner->p_packetizer->p_module )
530 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
531 vlc_object_detach( p_dec->p_owner->p_packetizer );
532 vlc_object_release( p_dec->p_owner->p_packetizer );
537 /* Copy ourself the input replay gain */
538 if( fmt->i_cat == AUDIO_ES )
540 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
542 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
544 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
545 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
547 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
549 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
550 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
555 p_owner->b_cc_supported = false;
556 if( i_object_type == VLC_OBJECT_DECODER )
558 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
559 p_owner->b_cc_supported = true;
560 if( p_dec->pf_get_cc )
561 p_owner->b_cc_supported = true;
564 vlc_mutex_init( &p_owner->lock_cc );
565 for( i = 0; i < 4; i++ )
567 p_owner->pb_cc_present[i] = false;
568 p_owner->pp_cc[i] = NULL;
574 * The decoding main loop
576 * \param p_dec the decoder
579 static int DecoderThread( decoder_t * p_dec )
583 /* The decoder's main loop */
584 while( !p_dec->b_die && !p_dec->b_error )
586 if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
591 if( DecoderDecode( p_dec, p_block ) != VLC_SUCCESS )
597 while( !p_dec->b_die )
599 /* Trash all received PES packets */
600 p_block = block_FifoGet( p_dec->p_owner->p_fifo );
601 if( p_block ) block_Release( p_block );
604 /* We do it here because of the dll loader that wants close() in the
605 * same thread than open()/decode() */
606 module_Unneed( p_dec, p_dec->p_module );
611 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
613 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
614 *pi_preroll = INT64_MAX;
615 else if( p->i_pts > 0 )
616 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
617 else if( p->i_dts > 0 )
618 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
620 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
622 input_thread_t *p_input = p_dec->p_owner->p_input;
623 const int i_rate = p_block->i_rate;
624 aout_buffer_t *p_aout_buf;
626 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
630 /* It prevent freezing VLC in case of broken decoder */
632 block_Release( p_block );
635 vlc_mutex_lock( &p_input->p->counters.counters_lock );
636 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio, 1, NULL );
637 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
639 if( p_aout_buf->start_date < p_dec->p_owner->i_preroll_end )
641 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
642 p_dec->p_owner->p_aout_input, p_aout_buf );
646 if( p_dec->p_owner->i_preroll_end > 0 )
648 /* FIXME TODO flush audio output (don't know how to do that) */
649 msg_Dbg( p_dec, "End of audio preroll" );
650 p_dec->p_owner->i_preroll_end = -1;
652 aout_DecPlay( p_dec->p_owner->p_aout,
653 p_dec->p_owner->p_aout_input,
654 p_aout_buf, i_rate );
657 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
664 assert( p_dec_cc->pf_get_cc != NULL );
666 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
667 if( !p_dec->p_owner->b_cc_supported )
670 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
674 vlc_mutex_lock( &p_dec->p_owner->lock_cc );
675 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
677 p_dec->p_owner->pb_cc_present[i] |= pb_present[i];
678 if( p_dec->p_owner->pp_cc[i] )
682 for( i = 0; i < 4; i++ )
684 if( !p_dec->p_owner->pp_cc[i] )
687 if( i_cc_decoder > 1 )
688 DecoderDecode( p_dec->p_owner->pp_cc[i], block_Duplicate( p_cc ) );
690 DecoderDecode( p_dec->p_owner->pp_cc[i], p_cc );
693 vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
695 static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
697 vlc_mutex_lock( &p_vout->picture_lock );
699 if( p_pic->i_status == READY_PICTURE )
701 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
704 else if( p_pic->i_refcount > 0 )
706 p_pic->i_status = DISPLAYED_PICTURE;
710 p_pic->i_status = DESTROYED_PICTURE;
711 p_vout->i_heap_size--;
714 vlc_mutex_unlock( &p_vout->picture_lock );
716 static void VoutFlushPicture( vout_thread_t *p_vout )
719 vlc_mutex_lock( &p_vout->picture_lock );
720 for( i = 0; i < p_vout->render.i_pictures; i++ )
722 picture_t *p_pic = p_vout->render.pp_picture[i];
724 if( p_pic->i_status == READY_PICTURE ||
725 p_pic->i_status == DISPLAYED_PICTURE )
727 /* We cannot change picture status if it is in READY_PICTURE state,
728 * Just make sure they won't be displayed */
732 vlc_mutex_unlock( &p_vout->picture_lock );
736 static void optimize_video_pts( decoder_t *p_dec )
738 picture_t * oldest_pict = NULL;
739 picture_t * youngest_pict = NULL;
742 input_thread_t * p_input = p_dec->p_owner->p_input;
743 vout_thread_t * p_vout = p_dec->p_owner->p_vout;
744 input_thread_private_t * p_priv = p_input->p;
746 /* Enable with --auto-adjust-pts-delay */
747 if( !p_priv->pts_adjust.auto_adjust ) return;
749 for( i = 0; i < I_RENDERPICTURES; i++ )
751 picture_t * pic = PP_RENDERPICTURE[i];
752 if( pic->i_status != READY_PICTURE )
755 if( !oldest_pict || pic->date < oldest_pict->date )
757 if( !youngest_pict || pic->date > youngest_pict->date )
761 if( !youngest_pict || !oldest_pict )
764 /* Try to find if we can reduce the pts
765 * This first draft is way to simple, and we can't say if the
766 * algo will converge. It's also full of constants.
767 * But this simple algo allows to reduce the latency
769 * The whole point of this, is to bypass the pts_delay set
770 * by the access but also the delay arbitraly set by
772 * Actually the remote server's muxer may set up a
773 * pts<->dts delay in the muxed stream. That is
774 * why we may end up in having a negative pts_delay,
775 * to compensate that artificial delay. */
776 mtime_t buffer_size = youngest_pict->date - oldest_pict->date;
777 int64_t pts_slide = 0;
778 if( buffer_size < 10000 )
780 if( p_priv->pts_adjust.i_num_faulty > 10 )
782 pts_slide = __MAX(p_input->i_pts_delay *3 / 2, 10000);
783 p_priv->pts_adjust.i_num_faulty = 0;
785 if( p_priv->pts_adjust.to_high )
787 p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
788 p_priv->pts_adjust.i_num_faulty = 0;
790 p_priv->pts_adjust.i_num_faulty++;
792 else if( buffer_size > 100000 )
794 if( p_priv->pts_adjust.i_num_faulty > 25 )
796 pts_slide = -buffer_size/2;
797 p_priv->pts_adjust.i_num_faulty = 0;
799 if( p_priv->pts_adjust.to_high )
801 p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
802 p_priv->pts_adjust.i_num_faulty = 0;
804 p_priv->pts_adjust.i_num_faulty++;
808 mtime_t origi_delay = p_input->i_pts_delay;
810 p_input->i_pts_delay += pts_slide;
812 /* Don't play with the pts delay for more than -2<->3sec */
813 if( p_input->i_pts_delay < -2000000 )
814 p_input->i_pts_delay = -2000000;
815 else if( p_input->i_pts_delay > 3000000 )
816 p_input->i_pts_delay = 3000000;
817 pts_slide = p_input->i_pts_delay - origi_delay;
819 msg_Dbg( p_input, "Sliding the pts by %dms pts delay at %dms picture buffer was %dms",
820 (int)pts_slide/1000, (int)p_input->i_pts_delay/1000, (int)buffer_size/1000);
822 vlc_mutex_lock( &p_vout->picture_lock );
823 /* Slide all the picture */
824 for( i = 0; i < I_RENDERPICTURES; i++ )
825 PP_RENDERPICTURE[i]->date += pts_slide;
826 /* FIXME: slide aout/spu */
827 vlc_mutex_unlock( &p_vout->picture_lock );
832 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
834 input_thread_t *p_input = p_dec->p_owner->p_input;
837 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
841 /* It prevent freezing VLC in case of broken decoder */
843 block_Release( p_block );
847 vlc_mutex_lock( &p_input->p->counters.counters_lock );
848 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video, 1, NULL );
849 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
851 if( p_pic->date < p_dec->p_owner->i_preroll_end )
853 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
857 if( p_dec->p_owner->i_preroll_end > 0 )
859 msg_Dbg( p_dec, "End of video preroll" );
860 if( p_dec->p_owner->p_vout )
861 VoutFlushPicture( p_dec->p_owner->p_vout );
863 p_dec->p_owner->i_preroll_end = -1;
866 if( ( !p_dec->p_owner->p_packetizer || !p_dec->p_owner->p_packetizer->pf_get_cc ) && p_dec->pf_get_cc )
867 DecoderGetCc( p_dec, p_dec );
869 vout_DatePicture( p_dec->p_owner->p_vout, p_pic,
872 optimize_video_pts( p_dec );
874 vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
881 * \param p_dec the decoder object
882 * \param p_block the block to decode
883 * \return VLC_SUCCESS or an error code
885 static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
887 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
888 const int i_rate = p_block ? p_block->i_rate : INPUT_RATE_DEFAULT;
890 if( p_block && p_block->i_buffer <= 0 )
892 block_Release( p_block );
897 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
899 block_t *p_sout_block;
901 while( ( p_sout_block =
902 p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
904 if( !p_dec->p_owner->p_sout_input )
906 es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
908 p_dec->p_owner->sout.i_group = p_dec->fmt_in.i_group;
909 p_dec->p_owner->sout.i_id = p_dec->fmt_in.i_id;
910 if( p_dec->fmt_in.psz_language )
912 if( p_dec->p_owner->sout.psz_language )
913 free( p_dec->p_owner->sout.psz_language );
914 p_dec->p_owner->sout.psz_language =
915 strdup( p_dec->fmt_in.psz_language );
918 p_dec->p_owner->p_sout_input =
919 sout_InputNew( p_dec->p_owner->p_sout,
920 &p_dec->p_owner->sout );
922 if( p_dec->p_owner->p_sout_input == NULL )
924 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
925 (char *)&p_dec->p_owner->sout.i_codec );
926 p_dec->b_error = true;
928 while( p_sout_block )
930 block_t *p_next = p_sout_block->p_next;
931 block_Release( p_sout_block );
932 p_sout_block = p_next;
938 while( p_sout_block )
940 block_t *p_next = p_sout_block->p_next;
942 p_sout_block->p_next = NULL;
943 p_sout_block->i_rate = i_rate;
945 sout_InputSendBuffer( p_dec->p_owner->p_sout_input,
948 p_sout_block = p_next;
951 /* For now it's enough, as only sout impact on this flag */
952 if( p_dec->p_owner->p_sout->i_out_pace_nocontrol > 0 &&
953 p_dec->p_owner->p_input->p->b_out_pace_control )
955 msg_Dbg( p_dec, "switching to sync mode" );
956 p_dec->p_owner->p_input->p->b_out_pace_control = false;
958 else if( p_dec->p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
959 !p_dec->p_owner->p_input->p->b_out_pace_control )
961 msg_Dbg( p_dec, "switching to async mode" );
962 p_dec->p_owner->p_input->p->b_out_pace_control = true;
968 if( p_dec->fmt_in.i_cat == AUDIO_ES )
971 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
973 if( p_dec->p_owner->p_packetizer )
975 block_t *p_packetized_block;
976 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
978 while( (p_packetized_block =
979 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
981 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
983 es_format_Clean( &p_dec->fmt_in );
984 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
987 while( p_packetized_block )
989 block_t *p_next = p_packetized_block->p_next;
990 p_packetized_block->p_next = NULL;
991 p_packetized_block->i_rate = i_rate;
993 DecoderDecodeAudio( p_dec, p_packetized_block );
995 p_packetized_block = p_next;
1001 DecoderDecodeAudio( p_dec, p_block );
1004 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
1007 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
1009 if( p_dec->p_owner->p_packetizer )
1011 block_t *p_packetized_block;
1012 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
1014 while( (p_packetized_block =
1015 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1017 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1019 es_format_Clean( &p_dec->fmt_in );
1020 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1022 if( p_packetizer->pf_get_cc )
1023 DecoderGetCc( p_dec, p_packetizer );
1025 while( p_packetized_block )
1027 block_t *p_next = p_packetized_block->p_next;
1028 p_packetized_block->p_next = NULL;
1029 p_packetized_block->i_rate = i_rate;
1031 DecoderDecodeVideo( p_dec, p_packetized_block );
1033 p_packetized_block = p_next;
1039 DecoderDecodeVideo( p_dec, p_block );
1042 else if( p_dec->fmt_in.i_cat == SPU_ES )
1044 input_thread_t *p_input = p_dec->p_owner->p_input;
1045 vout_thread_t *p_vout;
1046 subpicture_t *p_spu;
1049 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
1051 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1053 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1054 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1055 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1057 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1058 if( p_vout && p_sys->p_spu_vout == p_vout )
1060 /* Prerool does not work very well with subtitle */
1061 if( p_spu->i_start < p_dec->p_owner->i_preroll_end &&
1062 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_dec->p_owner->i_preroll_end ) )
1063 spu_DestroySubpicture( p_vout->p_spu, p_spu );
1065 spu_DisplaySubpicture( p_vout->p_spu, p_spu );
1069 msg_Warn( p_dec, "no vout found, leaking subpicture" );
1072 vlc_object_release( p_vout );
1077 msg_Err( p_dec, "unknown ES format" );
1081 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1085 * Destroys a decoder object
1087 * \param p_dec the decoder object
1090 static void DeleteDecoder( decoder_t * p_dec )
1092 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1093 (char*)&p_dec->fmt_in.i_codec,
1094 (unsigned)block_FifoCount( p_dec->p_owner->p_fifo ) );
1096 /* Free all packets still in the decoder fifo. */
1097 block_FifoEmpty( p_dec->p_owner->p_fifo );
1098 block_FifoRelease( p_dec->p_owner->p_fifo );
1101 if( p_dec->p_owner->p_aout_input )
1102 aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
1103 if( p_dec->p_owner->p_aout )
1105 vlc_object_release( p_dec->p_owner->p_aout );
1106 p_dec->p_owner->p_aout = NULL;
1108 if( p_dec->p_owner->p_vout )
1112 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1113 /* Hack to make sure all the the pictures are freed by the decoder */
1114 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1117 if( p_pic->i_status == RESERVED_PICTURE )
1118 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1119 if( p_pic->i_refcount > 0 )
1120 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1124 /* We are about to die. Reattach video output to p_vlc. */
1125 vout_Request( p_dec, p_dec->p_owner->p_vout, 0 );
1129 if( p_dec->p_owner->p_sout_input )
1131 sout_InputDelete( p_dec->p_owner->p_sout_input );
1132 es_format_Clean( &p_dec->p_owner->sout );
1136 if( p_dec->fmt_in.i_cat == SPU_ES )
1138 vout_thread_t *p_vout;
1140 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1143 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1144 p_dec->p_owner->i_spu_channel );
1145 vlc_object_release( p_vout );
1149 es_format_Clean( &p_dec->fmt_in );
1150 es_format_Clean( &p_dec->fmt_out );
1152 if( p_dec->p_owner->p_packetizer )
1154 module_Unneed( p_dec->p_owner->p_packetizer,
1155 p_dec->p_owner->p_packetizer->p_module );
1156 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
1157 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_out );
1158 vlc_object_detach( p_dec->p_owner->p_packetizer );
1159 vlc_object_release( p_dec->p_owner->p_packetizer );
1162 vlc_mutex_destroy( &p_dec->p_owner->lock_cc );
1164 vlc_object_detach( p_dec );
1166 free( p_dec->p_owner );
1169 /*****************************************************************************
1170 * Buffers allocation callbacks for the decoders
1171 *****************************************************************************/
1172 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1174 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1175 aout_buffer_t *p_buffer;
1177 if( p_sys->p_aout_input != NULL &&
1178 ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
1179 p_dec->fmt_out.audio.i_original_channels !=
1180 p_sys->audio.i_original_channels ||
1181 p_dec->fmt_out.audio.i_bytes_per_frame !=
1182 p_sys->audio.i_bytes_per_frame ) )
1184 /* Parameters changed, restart the aout */
1185 aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
1186 p_sys->p_aout_input = NULL;
1189 if( p_sys->p_aout_input == NULL )
1191 audio_sample_format_t format;
1192 int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1194 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1195 p_sys->audio = p_dec->fmt_out.audio;
1197 memcpy( &format, &p_sys->audio, sizeof( audio_sample_format_t ) );
1198 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1199 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1201 if ( i_force_dolby == 1 )
1203 format.i_original_channels = format.i_original_channels |
1204 AOUT_CHAN_DOLBYSTEREO;
1206 else /* i_force_dolby == 2 */
1208 format.i_original_channels = format.i_original_channels &
1209 ~AOUT_CHAN_DOLBYSTEREO;
1213 p_sys->p_aout_input =
1214 aout_DecNew( p_dec, &p_sys->p_aout, &format, &p_dec->fmt_out.audio_replay_gain );
1215 if( p_sys->p_aout_input == NULL )
1217 msg_Err( p_dec, "failed to create audio output" );
1218 p_dec->b_error = true;
1221 p_dec->fmt_out.audio.i_bytes_per_frame =
1222 p_sys->audio.i_bytes_per_frame;
1225 p_buffer = aout_DecNewBuffer( p_sys->p_aout_input, i_samples );
1230 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1232 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
1233 p_dec->p_owner->p_aout_input, p_buffer );
1236 static picture_t *vout_new_buffer( decoder_t *p_dec )
1238 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1241 if( p_sys->p_vout == NULL ||
1242 p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
1243 p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
1244 p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
1245 p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
1247 if( !p_dec->fmt_out.video.i_width ||
1248 !p_dec->fmt_out.video.i_height )
1250 /* Can't create a new vout without display size */
1254 if( !p_dec->fmt_out.video.i_visible_width ||
1255 !p_dec->fmt_out.video.i_visible_height )
1257 if( p_dec->fmt_in.video.i_visible_width &&
1258 p_dec->fmt_in.video.i_visible_height )
1260 p_dec->fmt_out.video.i_visible_width =
1261 p_dec->fmt_in.video.i_visible_width;
1262 p_dec->fmt_out.video.i_visible_height =
1263 p_dec->fmt_in.video.i_visible_height;
1267 p_dec->fmt_out.video.i_visible_width =
1268 p_dec->fmt_out.video.i_width;
1269 p_dec->fmt_out.video.i_visible_height =
1270 p_dec->fmt_out.video.i_height;
1274 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1275 var_CreateGetBool( p_dec, "hdtv-fix" ) )
1277 p_dec->fmt_out.video.i_visible_height = 1080;
1278 p_dec->fmt_out.video.i_sar_num *= 135;
1279 p_dec->fmt_out.video.i_sar_den *= 136;
1280 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
1283 if( !p_dec->fmt_out.video.i_sar_num ||
1284 !p_dec->fmt_out.video.i_sar_den )
1286 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
1287 p_dec->fmt_out.video.i_visible_height;
1289 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
1290 p_dec->fmt_out.video.i_visible_width;
1293 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
1294 &p_dec->fmt_out.video.i_sar_den,
1295 p_dec->fmt_out.video.i_sar_num,
1296 p_dec->fmt_out.video.i_sar_den, 50000 );
1298 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1299 p_sys->video = p_dec->fmt_out.video;
1301 p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
1302 &p_dec->fmt_out.video );
1303 if( p_sys->p_vout == NULL )
1305 msg_Err( p_dec, "failed to create video output" );
1306 p_dec->b_error = true;
1310 if( p_sys->video.i_rmask )
1311 p_sys->p_vout->render.i_rmask = p_sys->video.i_rmask;
1312 if( p_sys->video.i_gmask )
1313 p_sys->p_vout->render.i_gmask = p_sys->video.i_gmask;
1314 if( p_sys->video.i_bmask )
1315 p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
1318 /* Get a new picture */
1319 while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
1321 int i_pic, i_ready_pic = 0;
1323 if( p_dec->b_die || p_dec->b_error )
1328 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1329 /* Check the decoder doesn't leak pictures */
1330 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1333 if( p_pic->i_status == READY_PICTURE )
1335 if( i_ready_pic++ > 0 ) break;
1339 if( p_pic->i_status != DISPLAYED_PICTURE &&
1340 p_pic->i_status != RESERVED_PICTURE &&
1341 p_pic->i_status != READY_PICTURE ) break;
1343 if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
1346 if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
1348 msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
1350 /* Just free all the pictures */
1351 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1354 if( p_pic->i_status == RESERVED_PICTURE )
1355 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1356 if( p_pic->i_refcount > 0 )
1357 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1362 msleep( VOUT_OUTMEM_SLEEP );
1368 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
1370 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
1373 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
1375 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
1378 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
1380 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1383 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1385 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1386 vout_thread_t *p_vout = NULL;
1387 subpicture_t *p_subpic;
1388 int i_attempts = 30;
1390 while( i_attempts-- )
1392 if( p_dec->b_die || p_dec->b_error ) break;
1394 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1397 msleep( VOUT_DISPLAY_DELAY );
1402 msg_Warn( p_dec, "no vout found, dropping subpicture" );
1406 if( p_sys->p_spu_vout != p_vout )
1408 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
1409 &p_sys->i_spu_channel );
1410 p_sys->p_spu_vout = p_vout;
1413 p_subpic = spu_CreateSubpicture( p_vout->p_spu );
1416 p_subpic->i_channel = p_sys->i_spu_channel;
1419 vlc_object_release( p_vout );
1424 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1426 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1427 vout_thread_t *p_vout = NULL;
1429 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1430 if( !p_vout || p_sys->p_spu_vout != p_vout )
1433 vlc_object_release( p_vout );
1434 msg_Warn( p_dec, "no vout found, leaking subpicture" );
1438 spu_DestroySubpicture( p_vout->p_spu, p_subpic );
1440 vlc_object_release( p_vout );