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 );
449 msg_Err( p_input, "out of memory" );
453 p_dec->pf_decode_audio = 0;
454 p_dec->pf_decode_video = 0;
455 p_dec->pf_decode_sub = 0;
456 p_dec->pf_get_cc = 0;
457 p_dec->pf_packetize = 0;
459 /* Initialize the decoder fifo */
460 p_dec->p_module = NULL;
462 memset( &null_es_format, 0, sizeof(es_format_t) );
463 es_format_Copy( &p_dec->fmt_in, fmt );
464 es_format_Copy( &p_dec->fmt_out, &null_es_format );
466 /* Allocate our private structure for the decoder */
467 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
468 if( p_dec->p_owner == NULL )
470 msg_Err( p_dec, "out of memory" );
473 p_dec->p_owner->b_own_thread = true;
474 p_dec->p_owner->i_preroll_end = -1;
475 p_dec->p_owner->p_input = p_input;
476 p_dec->p_owner->p_aout = NULL;
477 p_dec->p_owner->p_aout_input = NULL;
478 p_dec->p_owner->p_vout = NULL;
479 p_dec->p_owner->p_spu_vout = NULL;
480 p_dec->p_owner->i_spu_channel = 0;
481 p_dec->p_owner->p_sout = p_input->p->p_sout;
482 p_dec->p_owner->p_sout_input = NULL;
483 p_dec->p_owner->p_packetizer = NULL;
486 if( ( p_dec->p_owner->p_fifo = block_FifoNew() ) == NULL )
488 msg_Err( p_dec, "out of memory" );
492 /* Set buffers allocation callbacks for the decoders */
493 p_dec->pf_aout_buffer_new = aout_new_buffer;
494 p_dec->pf_aout_buffer_del = aout_del_buffer;
495 p_dec->pf_vout_buffer_new = vout_new_buffer;
496 p_dec->pf_vout_buffer_del = vout_del_buffer;
497 p_dec->pf_picture_link = vout_link_picture;
498 p_dec->pf_picture_unlink = vout_unlink_picture;
499 p_dec->pf_spu_buffer_new = spu_new_buffer;
500 p_dec->pf_spu_buffer_del = spu_del_buffer;
502 vlc_object_attach( p_dec, p_input );
504 /* Find a suitable decoder/packetizer module */
505 if( i_object_type == VLC_OBJECT_DECODER )
506 p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
508 p_dec->p_module = module_Need( p_dec, "packetizer", "$packetizer", 0 );
510 /* Check if decoder requires already packetized data */
511 if( i_object_type == VLC_OBJECT_DECODER &&
512 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
514 p_dec->p_owner->p_packetizer =
515 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
516 if( p_dec->p_owner->p_packetizer )
518 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
521 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
524 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
526 p_dec->p_owner->p_packetizer->p_module =
527 module_Need( p_dec->p_owner->p_packetizer,
528 "packetizer", "$packetizer", 0 );
530 if( !p_dec->p_owner->p_packetizer->p_module )
532 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
533 vlc_object_detach( p_dec->p_owner->p_packetizer );
534 vlc_object_release( p_dec->p_owner->p_packetizer );
539 /* Copy ourself the input replay gain */
540 if( fmt->i_cat == AUDIO_ES )
542 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
544 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
546 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
547 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
549 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
551 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
552 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
557 p_owner->b_cc_supported = false;
558 if( i_object_type == VLC_OBJECT_DECODER )
560 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
561 p_owner->b_cc_supported = true;
562 if( p_dec->pf_get_cc )
563 p_owner->b_cc_supported = true;
566 vlc_mutex_init( &p_owner->lock_cc );
567 for( i = 0; i < 4; i++ )
569 p_owner->pb_cc_present[i] = false;
570 p_owner->pp_cc[i] = NULL;
576 * The decoding main loop
578 * \param p_dec the decoder
581 static int DecoderThread( decoder_t * p_dec )
585 /* The decoder's main loop */
586 while( !p_dec->b_die && !p_dec->b_error )
588 if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
593 if( DecoderDecode( p_dec, p_block ) != VLC_SUCCESS )
599 while( !p_dec->b_die )
601 /* Trash all received PES packets */
602 p_block = block_FifoGet( p_dec->p_owner->p_fifo );
603 if( p_block ) block_Release( p_block );
606 /* We do it here because of the dll loader that wants close() in the
607 * same thread than open()/decode() */
608 module_Unneed( p_dec, p_dec->p_module );
613 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
615 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
616 *pi_preroll = INT64_MAX;
617 else if( p->i_pts > 0 )
618 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
619 else if( p->i_dts > 0 )
620 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
622 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
624 input_thread_t *p_input = p_dec->p_owner->p_input;
625 const int i_rate = p_block->i_rate;
626 aout_buffer_t *p_aout_buf;
628 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
630 vlc_mutex_lock( &p_input->p->counters.counters_lock );
631 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio, 1, NULL );
632 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
634 if( p_aout_buf->start_date < p_dec->p_owner->i_preroll_end )
636 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
637 p_dec->p_owner->p_aout_input, p_aout_buf );
641 if( p_dec->p_owner->i_preroll_end > 0 )
643 /* FIXME TODO flush audio output (don't know how to do that) */
644 msg_Dbg( p_dec, "End of audio preroll" );
645 p_dec->p_owner->i_preroll_end = -1;
647 aout_DecPlay( p_dec->p_owner->p_aout,
648 p_dec->p_owner->p_aout_input,
649 p_aout_buf, i_rate );
652 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
659 assert( p_dec_cc->pf_get_cc != NULL );
661 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
662 if( !p_dec->p_owner->b_cc_supported )
665 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
669 vlc_mutex_lock( &p_dec->p_owner->lock_cc );
670 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
672 p_dec->p_owner->pb_cc_present[i] |= pb_present[i];
673 if( p_dec->p_owner->pp_cc[i] )
677 for( i = 0; i < 4; i++ )
679 if( !p_dec->p_owner->pp_cc[i] )
682 if( i_cc_decoder > 1 )
683 DecoderDecode( p_dec->p_owner->pp_cc[i], block_Duplicate( p_cc ) );
685 DecoderDecode( p_dec->p_owner->pp_cc[i], p_cc );
688 vlc_mutex_unlock( &p_dec->p_owner->lock_cc );
690 static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
692 vlc_mutex_lock( &p_vout->picture_lock );
694 if( p_pic->i_status == READY_PICTURE )
696 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
699 else if( p_pic->i_refcount > 0 )
701 p_pic->i_status = DISPLAYED_PICTURE;
705 p_pic->i_status = DESTROYED_PICTURE;
706 p_vout->i_heap_size--;
709 vlc_mutex_unlock( &p_vout->picture_lock );
711 static void VoutFlushPicture( vout_thread_t *p_vout )
714 vlc_mutex_lock( &p_vout->picture_lock );
715 for( i = 0; i < p_vout->render.i_pictures; i++ )
717 picture_t *p_pic = p_vout->render.pp_picture[i];
719 if( p_pic->i_status == READY_PICTURE ||
720 p_pic->i_status == DISPLAYED_PICTURE )
722 /* We cannot change picture status if it is in READY_PICTURE state,
723 * Just make sure they won't be displayed */
727 vlc_mutex_unlock( &p_vout->picture_lock );
731 static void optimize_video_pts( decoder_t *p_dec )
733 picture_t * oldest_pict = NULL;
734 picture_t * youngest_pict = NULL;
737 input_thread_t * p_input = p_dec->p_owner->p_input;
738 vout_thread_t * p_vout = p_dec->p_owner->p_vout;
739 input_thread_private_t * p_priv = p_input->p;
741 if( !p_priv->pts_adjust.auto_adjust ) return;
743 for( i = 0; i < I_RENDERPICTURES; i++ )
745 picture_t * pic = PP_RENDERPICTURE[i];
746 if( pic->i_status != READY_PICTURE )
749 if( !oldest_pict || pic->date < oldest_pict->date )
751 if( !youngest_pict || pic->date > youngest_pict->date )
755 if( !youngest_pict || !oldest_pict )
758 /* Try to find if we can reduce the pts
759 * This first draft is way to simple, and we can't say if the
760 * algo will converge. It's also full of constants.
761 * But this simple algo allows to reduce the latency
763 * The whole point of this, is to bypass the pts_delay set
764 * by the access but also the delay arbitraly set by
766 * Actually the remote server's muxer may set up a
767 * pts<->dts delay in the muxed stream. That is
768 * why we may end up in having a negative pts_delay,
769 * to compensate that artificial delay. */
770 mtime_t buffer_size = youngest_pict->date - oldest_pict->date;
771 int64_t pts_slide = 0;
772 if( buffer_size < 10000 )
774 if( p_priv->pts_adjust.i_num_faulty > 10 )
776 pts_slide = __MAX(p_input->i_pts_delay *3 / 2, 10000);
777 p_priv->pts_adjust.i_num_faulty = 0;
779 if( p_priv->pts_adjust.to_high )
781 p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
782 p_priv->pts_adjust.i_num_faulty = 0;
784 p_priv->pts_adjust.i_num_faulty++;
786 else if( buffer_size > 100000 )
788 if( p_priv->pts_adjust.i_num_faulty > 25 )
790 pts_slide = -buffer_size/2;
791 p_priv->pts_adjust.i_num_faulty = 0;
793 if( p_priv->pts_adjust.to_high )
795 p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
796 p_priv->pts_adjust.i_num_faulty = 0;
798 p_priv->pts_adjust.i_num_faulty++;
802 mtime_t origi_delay = p_input->i_pts_delay;
804 p_input->i_pts_delay += pts_slide;
806 /* Don't play with the pts delay for more than -2<->3sec */
807 if( p_input->i_pts_delay < -2000000 )
808 p_input->i_pts_delay = -2000000;
809 else if( p_input->i_pts_delay > 3000000 )
810 p_input->i_pts_delay = 3000000;
811 pts_slide = p_input->i_pts_delay - origi_delay;
813 msg_Dbg( p_input, "Sliding the pts by %dms pts delay at %dms picture buffer was %dms",
814 (int)pts_slide/1000, (int)p_input->i_pts_delay/1000, (int)buffer_size/1000);
816 vlc_mutex_lock( &p_vout->picture_lock );
817 /* Slide all the picture */
818 for( i = 0; i < I_RENDERPICTURES; i++ )
819 PP_RENDERPICTURE[i]->date += pts_slide;
820 /* FIXME: slide aout/spu */
821 vlc_mutex_unlock( &p_vout->picture_lock );
826 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
828 input_thread_t *p_input = p_dec->p_owner->p_input;
831 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
833 vlc_mutex_lock( &p_input->p->counters.counters_lock );
834 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video, 1, NULL );
835 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
837 if( p_pic->date < p_dec->p_owner->i_preroll_end )
839 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
843 if( p_dec->p_owner->i_preroll_end > 0 )
845 msg_Dbg( p_dec, "End of video preroll" );
846 if( p_dec->p_owner->p_vout )
847 VoutFlushPicture( p_dec->p_owner->p_vout );
849 p_dec->p_owner->i_preroll_end = -1;
852 if( ( !p_dec->p_owner->p_packetizer || !p_dec->p_owner->p_packetizer->pf_get_cc ) && p_dec->pf_get_cc )
853 DecoderGetCc( p_dec, p_dec );
855 vout_DatePicture( p_dec->p_owner->p_vout, p_pic,
858 optimize_video_pts( p_dec );
860 vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
867 * \param p_dec the decoder object
868 * \param p_block the block to decode
869 * \return VLC_SUCCESS or an error code
871 static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
873 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
874 const int i_rate = p_block ? p_block->i_rate : INPUT_RATE_DEFAULT;
876 if( p_block && p_block->i_buffer <= 0 )
878 block_Release( p_block );
883 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
885 block_t *p_sout_block;
887 while( ( p_sout_block =
888 p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
890 if( !p_dec->p_owner->p_sout_input )
892 es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
894 p_dec->p_owner->sout.i_group = p_dec->fmt_in.i_group;
895 p_dec->p_owner->sout.i_id = p_dec->fmt_in.i_id;
896 if( p_dec->fmt_in.psz_language )
898 if( p_dec->p_owner->sout.psz_language )
899 free( p_dec->p_owner->sout.psz_language );
900 p_dec->p_owner->sout.psz_language =
901 strdup( p_dec->fmt_in.psz_language );
904 p_dec->p_owner->p_sout_input =
905 sout_InputNew( p_dec->p_owner->p_sout,
906 &p_dec->p_owner->sout );
908 if( p_dec->p_owner->p_sout_input == NULL )
910 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
911 (char *)&p_dec->p_owner->sout.i_codec );
912 p_dec->b_error = true;
914 while( p_sout_block )
916 block_t *p_next = p_sout_block->p_next;
917 block_Release( p_sout_block );
918 p_sout_block = p_next;
924 while( p_sout_block )
926 block_t *p_next = p_sout_block->p_next;
928 p_sout_block->p_next = NULL;
929 p_sout_block->i_rate = i_rate;
931 sout_InputSendBuffer( p_dec->p_owner->p_sout_input,
934 p_sout_block = p_next;
937 /* For now it's enough, as only sout impact on this flag */
938 if( p_dec->p_owner->p_sout->i_out_pace_nocontrol > 0 &&
939 p_dec->p_owner->p_input->p->b_out_pace_control )
941 msg_Dbg( p_dec, "switching to sync mode" );
942 p_dec->p_owner->p_input->p->b_out_pace_control = false;
944 else if( p_dec->p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
945 !p_dec->p_owner->p_input->p->b_out_pace_control )
947 msg_Dbg( p_dec, "switching to async mode" );
948 p_dec->p_owner->p_input->p->b_out_pace_control = true;
954 if( p_dec->fmt_in.i_cat == AUDIO_ES )
957 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
959 if( p_dec->p_owner->p_packetizer )
961 block_t *p_packetized_block;
962 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
964 while( (p_packetized_block =
965 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
967 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
969 es_format_Clean( &p_dec->fmt_in );
970 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
973 while( p_packetized_block )
975 block_t *p_next = p_packetized_block->p_next;
976 p_packetized_block->p_next = NULL;
977 p_packetized_block->i_rate = i_rate;
979 DecoderDecodeAudio( p_dec, p_packetized_block );
981 p_packetized_block = p_next;
987 DecoderDecodeAudio( p_dec, p_block );
990 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
993 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
995 if( p_dec->p_owner->p_packetizer )
997 block_t *p_packetized_block;
998 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
1000 while( (p_packetized_block =
1001 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1003 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1005 es_format_Clean( &p_dec->fmt_in );
1006 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1008 if( p_packetizer->pf_get_cc )
1009 DecoderGetCc( p_dec, p_packetizer );
1011 while( p_packetized_block )
1013 block_t *p_next = p_packetized_block->p_next;
1014 p_packetized_block->p_next = NULL;
1015 p_packetized_block->i_rate = i_rate;
1017 DecoderDecodeVideo( p_dec, p_packetized_block );
1019 p_packetized_block = p_next;
1025 DecoderDecodeVideo( p_dec, p_block );
1028 else if( p_dec->fmt_in.i_cat == SPU_ES )
1030 input_thread_t *p_input = p_dec->p_owner->p_input;
1031 vout_thread_t *p_vout;
1032 subpicture_t *p_spu;
1035 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
1037 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1039 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1040 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
1041 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1043 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1044 if( p_vout && p_sys->p_spu_vout == p_vout )
1046 /* Prerool does not work very well with subtitle */
1047 if( p_spu->i_start < p_dec->p_owner->i_preroll_end &&
1048 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_dec->p_owner->i_preroll_end ) )
1049 spu_DestroySubpicture( p_vout->p_spu, p_spu );
1051 spu_DisplaySubpicture( p_vout->p_spu, p_spu );
1055 msg_Warn( p_dec, "no vout found, leaking subpicture" );
1058 vlc_object_release( p_vout );
1063 msg_Err( p_dec, "unknown ES format" );
1067 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
1071 * Destroys a decoder object
1073 * \param p_dec the decoder object
1076 static void DeleteDecoder( decoder_t * p_dec )
1078 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1079 (char*)&p_dec->fmt_in.i_codec,
1080 (unsigned)block_FifoCount( p_dec->p_owner->p_fifo ) );
1082 /* Free all packets still in the decoder fifo. */
1083 block_FifoEmpty( p_dec->p_owner->p_fifo );
1084 block_FifoRelease( p_dec->p_owner->p_fifo );
1087 if( p_dec->p_owner->p_aout_input )
1088 aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
1089 if( p_dec->p_owner->p_aout )
1091 vlc_object_release( p_dec->p_owner->p_aout );
1092 p_dec->p_owner->p_aout = NULL;
1094 if( p_dec->p_owner->p_vout )
1098 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1099 /* Hack to make sure all the the pictures are freed by the decoder */
1100 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1103 if( p_pic->i_status == RESERVED_PICTURE )
1104 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1105 if( p_pic->i_refcount > 0 )
1106 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1110 /* We are about to die. Reattach video output to p_vlc. */
1111 vout_Request( p_dec, p_dec->p_owner->p_vout, 0 );
1115 if( p_dec->p_owner->p_sout_input )
1117 sout_InputDelete( p_dec->p_owner->p_sout_input );
1118 es_format_Clean( &p_dec->p_owner->sout );
1122 if( p_dec->fmt_in.i_cat == SPU_ES )
1124 vout_thread_t *p_vout;
1126 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1129 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
1130 p_dec->p_owner->i_spu_channel );
1131 vlc_object_release( p_vout );
1135 es_format_Clean( &p_dec->fmt_in );
1136 es_format_Clean( &p_dec->fmt_out );
1138 if( p_dec->p_owner->p_packetizer )
1140 module_Unneed( p_dec->p_owner->p_packetizer,
1141 p_dec->p_owner->p_packetizer->p_module );
1142 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
1143 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_out );
1144 vlc_object_detach( p_dec->p_owner->p_packetizer );
1145 vlc_object_release( p_dec->p_owner->p_packetizer );
1148 vlc_mutex_destroy( &p_dec->p_owner->lock_cc );
1150 vlc_object_detach( p_dec );
1152 free( p_dec->p_owner );
1155 /*****************************************************************************
1156 * Buffers allocation callbacks for the decoders
1157 *****************************************************************************/
1158 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
1160 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1161 aout_buffer_t *p_buffer;
1163 if( p_sys->p_aout_input != NULL &&
1164 ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
1165 p_dec->fmt_out.audio.i_original_channels !=
1166 p_sys->audio.i_original_channels ||
1167 p_dec->fmt_out.audio.i_bytes_per_frame !=
1168 p_sys->audio.i_bytes_per_frame ) )
1170 /* Parameters changed, restart the aout */
1171 aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
1172 p_sys->p_aout_input = NULL;
1175 if( p_sys->p_aout_input == NULL )
1177 audio_sample_format_t format;
1178 int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
1180 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
1181 p_sys->audio = p_dec->fmt_out.audio;
1183 memcpy( &format, &p_sys->audio, sizeof( audio_sample_format_t ) );
1184 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
1185 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
1187 if ( i_force_dolby == 1 )
1189 format.i_original_channels = format.i_original_channels |
1190 AOUT_CHAN_DOLBYSTEREO;
1192 else /* i_force_dolby == 2 */
1194 format.i_original_channels = format.i_original_channels &
1195 ~AOUT_CHAN_DOLBYSTEREO;
1199 p_sys->p_aout_input =
1200 aout_DecNew( p_dec, &p_sys->p_aout, &format, &p_dec->fmt_out.audio_replay_gain );
1201 if( p_sys->p_aout_input == NULL )
1203 msg_Err( p_dec, "failed to create audio output" );
1204 p_dec->b_error = true;
1207 p_dec->fmt_out.audio.i_bytes_per_frame =
1208 p_sys->audio.i_bytes_per_frame;
1211 p_buffer = aout_DecNewBuffer( p_sys->p_aout_input, i_samples );
1216 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1218 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
1219 p_dec->p_owner->p_aout_input, p_buffer );
1222 static picture_t *vout_new_buffer( decoder_t *p_dec )
1224 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1227 if( p_sys->p_vout == NULL ||
1228 p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
1229 p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
1230 p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
1231 p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
1233 if( !p_dec->fmt_out.video.i_width ||
1234 !p_dec->fmt_out.video.i_height )
1236 /* Can't create a new vout without display size */
1240 if( !p_dec->fmt_out.video.i_visible_width ||
1241 !p_dec->fmt_out.video.i_visible_height )
1243 if( p_dec->fmt_in.video.i_visible_width &&
1244 p_dec->fmt_in.video.i_visible_height )
1246 p_dec->fmt_out.video.i_visible_width =
1247 p_dec->fmt_in.video.i_visible_width;
1248 p_dec->fmt_out.video.i_visible_height =
1249 p_dec->fmt_in.video.i_visible_height;
1253 p_dec->fmt_out.video.i_visible_width =
1254 p_dec->fmt_out.video.i_width;
1255 p_dec->fmt_out.video.i_visible_height =
1256 p_dec->fmt_out.video.i_height;
1260 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
1261 var_CreateGetBool( p_dec, "hdtv-fix" ) )
1263 p_dec->fmt_out.video.i_visible_height = 1080;
1264 p_dec->fmt_out.video.i_sar_num *= 135;
1265 p_dec->fmt_out.video.i_sar_den *= 136;
1266 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
1269 if( !p_dec->fmt_out.video.i_sar_num ||
1270 !p_dec->fmt_out.video.i_sar_den )
1272 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
1273 p_dec->fmt_out.video.i_visible_height;
1275 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
1276 p_dec->fmt_out.video.i_visible_width;
1279 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
1280 &p_dec->fmt_out.video.i_sar_den,
1281 p_dec->fmt_out.video.i_sar_num,
1282 p_dec->fmt_out.video.i_sar_den, 50000 );
1284 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1285 p_sys->video = p_dec->fmt_out.video;
1287 p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
1288 &p_dec->fmt_out.video );
1289 if( p_sys->p_vout == NULL )
1291 msg_Err( p_dec, "failed to create video output" );
1292 p_dec->b_error = true;
1296 if( p_sys->video.i_rmask )
1297 p_sys->p_vout->render.i_rmask = p_sys->video.i_rmask;
1298 if( p_sys->video.i_gmask )
1299 p_sys->p_vout->render.i_gmask = p_sys->video.i_gmask;
1300 if( p_sys->video.i_bmask )
1301 p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
1304 /* Get a new picture */
1305 while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
1307 int i_pic, i_ready_pic = 0;
1309 if( p_dec->b_die || p_dec->b_error )
1314 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1315 /* Check the decoder doesn't leak pictures */
1316 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1319 if( p_pic->i_status == READY_PICTURE )
1321 if( i_ready_pic++ > 0 ) break;
1325 if( p_pic->i_status != DISPLAYED_PICTURE &&
1326 p_pic->i_status != RESERVED_PICTURE &&
1327 p_pic->i_status != READY_PICTURE ) break;
1329 if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
1332 if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
1334 msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
1336 /* Just free all the pictures */
1337 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1340 if( p_pic->i_status == RESERVED_PICTURE )
1341 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1342 if( p_pic->i_refcount > 0 )
1343 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1348 msleep( VOUT_OUTMEM_SLEEP );
1354 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
1356 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
1359 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
1361 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
1364 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
1366 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1369 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1371 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1372 vout_thread_t *p_vout = NULL;
1373 subpicture_t *p_subpic;
1374 int i_attempts = 30;
1376 while( i_attempts-- )
1378 if( p_dec->b_die || p_dec->b_error ) break;
1380 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1383 msleep( VOUT_DISPLAY_DELAY );
1388 msg_Warn( p_dec, "no vout found, dropping subpicture" );
1392 if( p_sys->p_spu_vout != p_vout )
1394 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
1395 &p_sys->i_spu_channel );
1396 p_sys->p_spu_vout = p_vout;
1399 p_subpic = spu_CreateSubpicture( p_vout->p_spu );
1402 p_subpic->i_channel = p_sys->i_spu_channel;
1405 vlc_object_release( p_vout );
1410 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1412 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1413 vout_thread_t *p_vout = NULL;
1415 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1416 if( !p_vout || p_sys->p_spu_vout != p_vout )
1419 vlc_object_release( p_vout );
1420 msg_Warn( p_dec, "no vout found, leaking subpicture" );
1424 spu_DestroySubpicture( p_vout->p_spu, p_subpic );
1426 vlc_object_release( p_vout );