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 struct decoder_owner_sys_t
58 int64_t i_preroll_end;
60 input_thread_t *p_input;
61 input_resource_t*p_resource;
62 input_clock_t *p_clock;
65 vout_thread_t *p_spu_vout;
69 sout_instance_t *p_sout;
70 sout_packetizer_input_t *p_sout_input;
74 /* Some decoders require already packetized data (ie. not truncated) */
75 decoder_t *p_packetizer;
78 /* Current format in use by the output */
82 bool b_fmt_description;
83 vlc_meta_t *p_description;
88 /* Lock for communication with decoder thread */
90 vlc_cond_t wait_request;
91 vlc_cond_t wait_acknowledge;
92 vlc_cond_t wait_fifo; /* TODO: merge with wait_acknowledge */
94 /* -- These variables need locking on write(only) -- */
95 audio_output_t *p_aout;
97 vout_thread_t *p_vout;
99 /* -- Theses variables need locking on read *and* write -- */
123 decoder_t *pp_decoder[4];
130 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
131 * a bogus PTS and won't be displayed */
132 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
135 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
137 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
139 decoder_owner_sys_t *p_owner = p_dec->p_owner;
141 vlc_assert_locked( &p_owner->lock );
143 es_format_Clean( &p_owner->fmt );
144 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
146 /* Move p_description */
147 if( p_dec->p_description != NULL )
149 if( p_owner->p_description != NULL )
150 vlc_meta_Delete( p_owner->p_description );
151 p_owner->p_description = p_dec->p_description;
152 p_dec->p_description = NULL;
155 p_owner->b_fmt_description = true;
158 static bool DecoderIsFlushing( decoder_t *p_dec )
160 decoder_owner_sys_t *p_owner = p_dec->p_owner;
163 vlc_mutex_lock( &p_owner->lock );
165 b_flushing = p_owner->b_flushing;
167 vlc_mutex_unlock( &p_owner->lock );
172 static block_t *DecoderBlockFlushNew()
174 block_t *p_null = block_Alloc( 128 );
178 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
179 BLOCK_FLAG_CORRUPTED |
180 BLOCK_FLAG_CORE_FLUSH;
181 memset( p_null->p_buffer, 0, p_null->i_buffer );
186 /*****************************************************************************
187 * Buffers allocation callbacks for the decoders
188 *****************************************************************************/
189 static vout_thread_t *aout_request_vout( void *p_private,
190 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
192 decoder_t *p_dec = p_private;
193 decoder_owner_sys_t *p_owner = p_dec->p_owner;
194 input_thread_t *p_input = p_owner->p_input;
196 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
198 if( p_input != NULL )
199 input_SendEventVout( p_input );
204 static int aout_update_format( decoder_t *p_dec )
206 decoder_owner_sys_t *p_owner = p_dec->p_owner;
209 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
211 audio_output_t *p_aout = p_owner->p_aout;
213 /* Parameters changed, restart the aout */
214 vlc_mutex_lock( &p_owner->lock );
216 aout_DecDelete( p_owner->p_aout );
217 p_owner->p_aout = NULL;
219 vlc_mutex_unlock( &p_owner->lock );
220 input_resource_PutAout( p_owner->p_resource, p_aout );
223 if( p_owner->p_aout == NULL )
225 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
227 audio_sample_format_t format = p_dec->fmt_out.audio;
228 aout_FormatPrepare( &format );
230 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
232 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
233 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
235 if( i_force_dolby == 1 )
237 format.i_original_channels = format.i_original_channels |
238 AOUT_CHAN_DOLBYSTEREO;
240 else /* i_force_dolby == 2 */
242 format.i_original_channels = format.i_original_channels &
243 ~AOUT_CHAN_DOLBYSTEREO;
247 aout_request_vout_t request_vout = {
248 .pf_request_vout = aout_request_vout,
251 audio_output_t *p_aout;
253 p_aout = input_resource_GetAout( p_owner->p_resource );
256 if( aout_DecNew( p_aout, &format,
257 &p_dec->fmt_out.audio_replay_gain,
260 input_resource_PutAout( p_owner->p_resource, p_aout );
265 vlc_mutex_lock( &p_owner->lock );
267 p_owner->p_aout = p_aout;
269 DecoderUpdateFormatLocked( p_dec );
270 aout_FormatPrepare( &p_owner->fmt.audio );
272 if( unlikely(p_owner->b_paused) && p_aout != NULL )
273 /* fake pause if needed */
274 aout_DecChangePause( p_aout, true, mdate() );
276 vlc_mutex_unlock( &p_owner->lock );
278 if( p_owner->p_input != NULL )
279 input_SendEventAout( p_owner->p_input );
283 msg_Err( p_dec, "failed to create audio output" );
284 p_dec->b_error = true;
288 p_dec->fmt_out.audio.i_bytes_per_frame =
289 p_owner->fmt.audio.i_bytes_per_frame;
290 p_dec->fmt_out.audio.i_frame_length =
291 p_owner->fmt.audio.i_frame_length;
296 static int vout_update_format( decoder_t *p_dec )
298 decoder_owner_sys_t *p_owner = p_dec->p_owner;
300 if( p_owner->p_vout == NULL
301 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
302 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
303 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
304 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
305 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
306 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
307 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
308 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
309 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
310 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
312 vout_thread_t *p_vout;
314 if( !p_dec->fmt_out.video.i_width ||
315 !p_dec->fmt_out.video.i_height )
317 /* Can't create a new vout without display size */
321 video_format_t fmt = p_dec->fmt_out.video;
322 fmt.i_chroma = p_dec->fmt_out.i_codec;
324 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
326 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
327 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
329 while( fmt.i_width % dsc->p[i].w.den )
331 while( fmt.i_height % dsc->p[i].h.den )
336 if( !fmt.i_visible_width || !fmt.i_visible_height )
338 if( p_dec->fmt_in.video.i_visible_width &&
339 p_dec->fmt_in.video.i_visible_height )
341 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
342 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
343 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
344 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
348 fmt.i_visible_width = fmt.i_width;
349 fmt.i_visible_height = fmt.i_height;
355 if( fmt.i_visible_height == 1088 &&
356 var_CreateGetBool( p_dec, "hdtv-fix" ) )
358 fmt.i_visible_height = 1080;
359 if( !(fmt.i_sar_num % 136))
361 fmt.i_sar_num *= 135;
362 fmt.i_sar_den *= 136;
364 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
367 if( !fmt.i_sar_num || !fmt.i_sar_den )
373 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
374 fmt.i_sar_num, fmt.i_sar_den, 50000 );
376 vlc_mutex_lock( &p_owner->lock );
378 p_vout = p_owner->p_vout;
379 p_owner->p_vout = NULL;
380 vlc_mutex_unlock( &p_owner->lock );
383 switch( p_dec->fmt_in.i_codec )
387 case VLC_CODEC_DIRAC: /* FIXME valid ? */
400 p_vout = input_resource_RequestVout( p_owner->p_resource,
403 p_dec->i_extra_picture_buffers + 1,
405 vlc_mutex_lock( &p_owner->lock );
406 p_owner->p_vout = p_vout;
408 DecoderUpdateFormatLocked( p_dec );
409 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
410 vlc_mutex_unlock( &p_owner->lock );
412 if( p_owner->p_input != NULL )
413 input_SendEventVout( p_owner->p_input );
416 msg_Err( p_dec, "failed to create video output" );
417 p_dec->b_error = true;
424 static picture_t *vout_new_buffer( decoder_t *p_dec )
426 decoder_owner_sys_t *p_owner = p_dec->p_owner;
430 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
433 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
438 vlc_mutex_lock( &p_owner->lock );
439 if( p_owner->b_waiting )
441 p_owner->b_has_data = true;
442 vlc_cond_signal( &p_owner->wait_acknowledge );
444 vlc_mutex_unlock( &p_owner->lock );
446 /* Check the decoder doesn't leak pictures */
447 vout_FixLeaks( p_owner->p_vout );
449 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
450 msleep( VOUT_OUTMEM_SLEEP );
454 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
455 const subpicture_updater_t *p_updater )
457 decoder_owner_sys_t *p_owner = p_dec->p_owner;
458 vout_thread_t *p_vout = NULL;
459 subpicture_t *p_subpic;
462 while( i_attempts-- )
464 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
467 p_vout = input_resource_HoldVout( p_owner->p_resource );
471 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
476 msg_Warn( p_dec, "no vout found, dropping subpicture" );
480 if( p_owner->p_spu_vout != p_vout )
482 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
483 p_owner->i_spu_order = 0;
484 p_owner->p_spu_vout = p_vout;
487 p_subpic = subpicture_New( p_updater );
490 p_subpic->i_channel = p_owner->i_spu_channel;
491 p_subpic->i_order = p_owner->i_spu_order++;
492 p_subpic->b_subtitle = true;
495 vlc_object_release( p_vout );
500 static int DecoderGetInputAttachments( decoder_t *p_dec,
501 input_attachment_t ***ppp_attachment,
504 input_thread_t *p_input = p_dec->p_owner->p_input;
506 if( unlikely(p_input == NULL) )
508 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
509 ppp_attachment, pi_attachment );
512 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
514 decoder_owner_sys_t *p_owner = p_dec->p_owner;
516 vlc_mutex_lock( &p_owner->lock );
517 if( p_owner->b_waiting || p_owner->b_paused )
518 i_ts = VLC_TS_INVALID;
519 vlc_mutex_unlock( &p_owner->lock );
521 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
524 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
525 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
526 return VLC_TS_INVALID;
532 static int DecoderGetDisplayRate( decoder_t *p_dec )
534 decoder_owner_sys_t *p_owner = p_dec->p_owner;
536 if( !p_owner->p_clock )
537 return INPUT_RATE_DEFAULT;
538 return input_clock_GetRate( p_owner->p_clock );
541 /*****************************************************************************
543 *****************************************************************************/
544 picture_t *decoder_NewPicture( decoder_t *p_decoder )
546 if( decoder_UpdateVideoFormat( p_decoder ) )
549 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
551 msg_Warn( p_decoder, "can't get output picture" );
555 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
557 if( decoder_UpdateAudioFormat( dec ) )
560 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
561 / dec->fmt_out.audio.i_frame_length;
562 block_t *block = block_Alloc( length );
563 if( likely(block != NULL) )
565 block->i_nb_samples = samples;
566 block->i_pts = block->i_length = 0;
571 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
572 const subpicture_updater_t *p_dyn )
574 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
576 msg_Warn( p_decoder, "can't get output subpicture" );
580 /* decoder_GetInputAttachments:
582 int decoder_GetInputAttachments( decoder_t *p_dec,
583 input_attachment_t ***ppp_attachment,
586 if( !p_dec->pf_get_attachments )
589 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
591 /* decoder_GetDisplayDate:
593 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
595 if( !p_dec->pf_get_display_date )
596 return VLC_TS_INVALID;
598 return p_dec->pf_get_display_date( p_dec, i_ts );
600 /* decoder_GetDisplayRate:
602 int decoder_GetDisplayRate( decoder_t *p_dec )
604 if( !p_dec->pf_get_display_rate )
605 return INPUT_RATE_DEFAULT;
607 return p_dec->pf_get_display_rate( p_dec );
610 static bool DecoderWaitUnblock( decoder_t *p_dec )
612 decoder_owner_sys_t *p_owner = p_dec->p_owner;
614 vlc_assert_locked( &p_owner->lock );
618 if( p_owner->b_flushing )
620 if( p_owner->b_paused )
622 if( p_owner->b_waiting && !p_owner->b_has_data )
624 if( p_owner->pause.i_ignore > 0 )
626 p_owner->pause.i_ignore--;
632 if( !p_owner->b_waiting || !p_owner->b_has_data )
635 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
638 return p_owner->b_flushing;
641 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
643 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
644 *pi_preroll = INT64_MAX;
645 else if( p->i_dts > VLC_TS_INVALID )
646 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
647 else if( p->i_pts > VLC_TS_INVALID )
648 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
651 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
652 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
654 decoder_owner_sys_t *p_owner = p_dec->p_owner;
655 input_clock_t *p_clock = p_owner->p_clock;
657 vlc_assert_locked( &p_owner->lock );
659 const mtime_t i_es_delay = p_owner->i_ts_delay;
664 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
667 if( *pi_ts0 > VLC_TS_INVALID )
669 *pi_ts0 += i_es_delay;
670 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
671 *pi_ts1 += i_es_delay;
672 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
674 msg_Err(p_dec, "Could not convert timestamps %"PRId64
675 ", %"PRId64"", *pi_ts0, *pi_ts1);
677 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
678 *pi_ts0 = VLC_TS_INVALID;
683 i_rate = input_clock_GetRate( p_clock );
686 /* Do not create ephemere data because of rounding errors */
687 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
691 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
692 / INPUT_RATE_DEFAULT;
699 * If *pb_reject, it does nothing, otherwise it waits for the given
700 * deadline or a flush request (in which case it set *pi_reject to true.
702 static void DecoderWaitDate( decoder_t *p_dec,
703 bool *pb_reject, mtime_t i_deadline )
705 decoder_owner_sys_t *p_owner = p_dec->p_owner;
707 vlc_assert_locked( &p_owner->lock );
709 if( *pb_reject || i_deadline < 0 )
714 if( p_owner->b_flushing )
720 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
727 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
729 decoder_owner_sys_t *p_owner = p_dec->p_owner;
731 assert( p_owner->p_clock );
732 assert( !p_sout_block->p_next );
734 vlc_mutex_lock( &p_owner->lock );
736 if( p_owner->b_waiting )
738 p_owner->b_has_data = true;
739 vlc_cond_signal( &p_owner->wait_acknowledge );
742 bool b_reject = DecoderWaitUnblock( p_dec );
744 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
745 &p_sout_block->i_length, NULL, INT64_MAX );
747 vlc_mutex_unlock( &p_owner->lock );
751 /* FIXME --VLC_TS_INVALID inspect stream_output*/
752 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
756 block_Release( p_sout_block );
761 /* This function process a block for sout
763 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
765 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
766 block_t *p_sout_block;
768 while( ( p_sout_block =
769 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
771 if( p_owner->p_sout_input == NULL )
773 vlc_mutex_lock( &p_owner->lock );
774 DecoderUpdateFormatLocked( p_dec );
775 vlc_mutex_unlock( &p_owner->lock );
777 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
778 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
779 if( p_dec->fmt_in.psz_language )
781 free( p_owner->fmt.psz_language );
782 p_owner->fmt.psz_language =
783 strdup( p_dec->fmt_in.psz_language );
786 p_owner->p_sout_input =
787 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
789 if( p_owner->p_sout_input == NULL )
791 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
792 (char *)&p_owner->fmt.i_codec );
793 p_dec->b_error = true;
795 block_ChainRelease(p_sout_block);
800 while( p_sout_block )
802 block_t *p_next = p_sout_block->p_next;
804 p_sout_block->p_next = NULL;
806 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
808 msg_Err( p_dec, "cannot continue streaming due to errors" );
810 p_dec->b_error = true;
813 block_ChainRelease( p_next );
817 p_sout_block = p_next;
823 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
825 decoder_owner_sys_t *p_owner = p_dec->p_owner;
828 bool b_processed = false;
832 assert( p_dec_cc->pf_get_cc != NULL );
834 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
835 if( !p_owner->cc.b_supported )
838 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
842 vlc_mutex_lock( &p_owner->lock );
843 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
845 p_owner->cc.pb_present[i] |= pb_present[i];
846 if( p_owner->cc.pp_decoder[i] )
850 for( i = 0; i < 4; i++ )
852 if( !p_owner->cc.pp_decoder[i] )
855 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
856 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
861 vlc_mutex_unlock( &p_owner->lock );
864 block_Release( p_cc );
867 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
868 int *pi_played_sum, int *pi_lost_sum )
870 decoder_owner_sys_t *p_owner = p_dec->p_owner;
871 vout_thread_t *p_vout = p_owner->p_vout;
873 if( p_picture->date <= VLC_TS_INVALID )
875 msg_Warn( p_dec, "non-dated video buffer received" );
877 picture_Release( p_picture );
882 vlc_mutex_lock( &p_owner->lock );
884 if( p_owner->b_waiting && !p_owner->b_first )
886 p_owner->b_has_data = true;
887 vlc_cond_signal( &p_owner->wait_acknowledge );
889 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
891 bool b_reject = DecoderWaitUnblock( p_dec );
893 if( p_owner->b_waiting )
895 assert( p_owner->b_first );
896 msg_Dbg( p_dec, "Received first picture" );
897 p_owner->b_first = false;
898 p_picture->b_force = true;
901 const bool b_dated = p_picture->date > VLC_TS_INVALID;
902 int i_rate = INPUT_RATE_DEFAULT;
903 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
904 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
906 vlc_mutex_unlock( &p_owner->lock );
909 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
914 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
916 /* Be sure to not display old picture after our own */
917 vout_Flush( p_vout, p_picture->date );
918 p_owner->i_last_rate = i_rate;
920 vout_PutPicture( p_vout, p_picture );
925 msg_Warn( p_dec, "early picture skipped" );
927 msg_Warn( p_dec, "non-dated video buffer received" );
930 picture_Release( p_picture );
934 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
936 *pi_played_sum += i_tmp_display;
937 *pi_lost_sum += i_tmp_lost;
940 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
942 decoder_owner_sys_t *p_owner = p_dec->p_owner;
948 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
950 vout_thread_t *p_vout = p_owner->p_vout;
951 if( DecoderIsFlushing( p_dec ) )
952 { /* It prevent freezing VLC in case of broken decoder */
953 picture_Release( p_pic );
955 block_Release( p_block );
961 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
963 picture_Release( p_pic );
967 if( p_owner->i_preroll_end > VLC_TS_INVALID )
969 msg_Dbg( p_dec, "End of video preroll" );
971 vout_Flush( p_vout, VLC_TS_INVALID+1 );
973 p_owner->i_preroll_end = VLC_TS_INVALID;
976 if( p_dec->pf_get_cc &&
977 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
978 DecoderGetCc( p_dec, p_dec );
980 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
983 /* Update ugly stat */
984 input_thread_t *p_input = p_owner->p_input;
986 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
988 vlc_mutex_lock( &p_input->p->counters.counters_lock );
989 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
990 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
991 stats_Update( p_input->p->counters.p_displayed_pictures,
993 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
997 /* This function process a video block
999 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1001 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1003 if( p_owner->p_packetizer )
1005 block_t *p_packetized_block;
1006 decoder_t *p_packetizer = p_owner->p_packetizer;
1008 while( (p_packetized_block =
1009 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1011 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1013 es_format_Clean( &p_dec->fmt_in );
1014 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1017 /* If the packetizer provides aspect ratio information, pass it
1018 * to the decoder as a hint if the decoder itself can't provide
1019 * it. Copy it regardless of the current value of the decoder input
1020 * format aspect ratio, to properly propagate changes in aspect
1022 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1023 p_packetizer->fmt_out.video.i_sar_den > 0)
1025 p_dec->fmt_in.video.i_sar_num =
1026 p_packetizer->fmt_out.video.i_sar_num;
1027 p_dec->fmt_in.video.i_sar_den=
1028 p_packetizer->fmt_out.video.i_sar_den;
1031 if( p_packetizer->pf_get_cc )
1032 DecoderGetCc( p_dec, p_packetizer );
1034 while( p_packetized_block )
1036 block_t *p_next = p_packetized_block->p_next;
1037 p_packetized_block->p_next = NULL;
1039 DecoderDecodeVideo( p_dec, p_packetized_block );
1041 p_packetized_block = p_next;
1044 /* The packetizer does not output a block that tell the decoder to flush
1048 block_t *p_null = DecoderBlockFlushNew();
1050 DecoderDecodeVideo( p_dec, p_null );
1055 DecoderDecodeVideo( p_dec, p_block );
1058 if( b_flush && p_owner->p_vout )
1059 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1062 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1063 int *pi_played_sum, int *pi_lost_sum )
1065 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1066 audio_output_t *p_aout = p_owner->p_aout;
1069 if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1071 msg_Warn( p_dec, "non-dated audio buffer received" );
1073 block_Release( p_audio );
1078 vlc_mutex_lock( &p_owner->lock );
1080 if( p_owner->b_waiting )
1082 p_owner->b_has_data = true;
1083 vlc_cond_signal( &p_owner->wait_acknowledge );
1086 bool b_reject = DecoderWaitUnblock( p_dec );
1087 bool b_paused = p_owner->b_paused;
1090 int i_rate = INPUT_RATE_DEFAULT;
1092 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1093 &i_rate, AOUT_MAX_ADVANCE_TIME );
1095 if( p_audio->i_pts <= VLC_TS_INVALID
1096 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1097 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1100 DecoderWaitDate( p_dec, &b_reject,
1101 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1103 if( unlikely(p_owner->b_paused != b_paused) )
1104 goto race; /* race with input thread? retry... */
1105 if( p_aout == NULL )
1110 assert( !p_owner->b_paused );
1111 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1112 *pi_played_sum += 1;
1113 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1117 msg_Dbg( p_dec, "discarded audio buffer" );
1119 block_Release( p_audio );
1121 vlc_mutex_unlock( &p_owner->lock );
1124 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1126 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1127 block_t *p_aout_buf;
1132 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1134 if( DecoderIsFlushing( p_dec ) )
1136 /* It prevent freezing VLC in case of broken decoder */
1137 block_Release( p_aout_buf );
1139 block_Release( p_block );
1144 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1145 p_aout_buf->i_pts < p_owner->i_preroll_end )
1147 block_Release( p_aout_buf );
1151 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1153 msg_Dbg( p_dec, "End of audio preroll" );
1154 if( p_owner->p_aout )
1155 aout_DecFlush( p_owner->p_aout, false );
1157 p_owner->i_preroll_end = VLC_TS_INVALID;
1160 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1163 /* Update ugly stat */
1164 input_thread_t *p_input = p_owner->p_input;
1166 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1168 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1169 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1170 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1171 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1172 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1176 /* This function process a audio block
1178 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1180 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1182 if( p_owner->p_packetizer )
1184 block_t *p_packetized_block;
1185 decoder_t *p_packetizer = p_owner->p_packetizer;
1187 while( (p_packetized_block =
1188 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1190 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1192 es_format_Clean( &p_dec->fmt_in );
1193 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1196 while( p_packetized_block )
1198 block_t *p_next = p_packetized_block->p_next;
1199 p_packetized_block->p_next = NULL;
1201 DecoderDecodeAudio( p_dec, p_packetized_block );
1203 p_packetized_block = p_next;
1206 /* The packetizer does not output a block that tell the decoder to flush
1210 block_t *p_null = DecoderBlockFlushNew();
1212 DecoderDecodeAudio( p_dec, p_null );
1217 DecoderDecodeAudio( p_dec, p_block );
1220 if( b_flush && p_owner->p_aout )
1221 aout_DecFlush( p_owner->p_aout, false );
1224 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1226 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1227 vout_thread_t *p_vout = p_owner->p_spu_vout;
1230 if( p_subpic->i_start <= VLC_TS_INVALID )
1232 msg_Warn( p_dec, "non-dated spu buffer received" );
1233 subpicture_Delete( p_subpic );
1238 vlc_mutex_lock( &p_owner->lock );
1240 if( p_owner->b_waiting )
1242 p_owner->b_has_data = true;
1243 vlc_cond_signal( &p_owner->wait_acknowledge );
1246 bool b_reject = DecoderWaitUnblock( p_dec );
1248 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1251 if( p_subpic->i_start <= VLC_TS_INVALID )
1254 DecoderWaitDate( p_dec, &b_reject,
1255 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1256 vlc_mutex_unlock( &p_owner->lock );
1259 vout_PutSubpicture( p_vout, p_subpic );
1261 subpicture_Delete( p_subpic );
1264 /* This function process a subtitle block
1266 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1268 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1270 input_thread_t *p_input = p_owner->p_input;
1271 vout_thread_t *p_vout;
1272 subpicture_t *p_spu;
1274 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1276 if( p_input != NULL )
1278 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1279 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1280 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1283 p_vout = input_resource_HoldVout( p_owner->p_resource );
1284 if( p_vout && p_owner->p_spu_vout == p_vout )
1286 /* Preroll does not work very well with subtitle */
1287 if( p_spu->i_start > VLC_TS_INVALID &&
1288 p_spu->i_start < p_owner->i_preroll_end &&
1289 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1291 subpicture_Delete( p_spu );
1295 DecoderPlaySpu( p_dec, p_spu );
1300 subpicture_Delete( p_spu );
1303 vlc_object_release( p_vout );
1306 if( b_flush && p_owner->p_spu_vout )
1308 p_vout = input_resource_HoldVout( p_owner->p_resource );
1310 if( p_vout && p_owner->p_spu_vout == p_vout )
1311 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1314 vlc_object_release( p_vout );
1319 static void DecoderProcessOnFlush( decoder_t *p_dec )
1321 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1323 vlc_mutex_lock( &p_owner->lock );
1325 if( p_owner->b_flushing )
1327 p_owner->b_flushing = false;
1328 vlc_cond_signal( &p_owner->wait_acknowledge );
1330 vlc_mutex_unlock( &p_owner->lock );
1336 * \param p_dec the decoder object
1337 * \param p_block the block to decode
1338 * \return VLC_SUCCESS or an error code
1340 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1342 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1343 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1345 if( p_dec->b_error )
1348 block_Release( p_block );
1352 if( p_block && p_block->i_buffer <= 0 )
1354 assert( !b_flush_request );
1355 block_Release( p_block );
1360 if( p_owner->b_packetizer )
1363 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1365 DecoderProcessSout( p_dec, p_block );
1370 bool b_flush = false;
1374 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1375 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1377 b_flush = !b_flushing && b_flush_request;
1379 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1382 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1384 DecoderProcessAudio( p_dec, p_block, b_flush );
1386 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1388 DecoderProcessVideo( p_dec, p_block, b_flush );
1390 else if( p_dec->fmt_out.i_cat == SPU_ES )
1392 DecoderProcessSpu( p_dec, p_block, b_flush );
1396 msg_Err( p_dec, "unknown ES format" );
1397 p_dec->b_error = true;
1403 if( b_flush_request )
1404 DecoderProcessOnFlush( p_dec );
1409 * The decoding main loop
1411 * \param p_dec the decoder
1413 static void *DecoderThread( void *p_data )
1415 decoder_t *p_dec = (decoder_t *)p_data;
1416 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1418 /* The decoder's main loop */
1423 vlc_fifo_Lock( p_owner->p_fifo );
1424 vlc_fifo_CleanupPush( p_owner->p_fifo );
1426 vlc_cond_signal( &p_owner->wait_acknowledge );
1427 vlc_cond_signal( &p_owner->wait_fifo );
1429 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
1431 if( p_owner->b_draining )
1432 { /* We have emptied the FIFO and there is a pending request to
1433 * drain. Pass p_block = NULL to decoder just once. */
1434 p_owner->b_draining = false;
1438 p_owner->b_idle = true;
1439 vlc_fifo_Wait( p_owner->p_fifo );
1440 /* Make sure there is no cancellation point other than this one^^.
1441 * If you need one, be sure to push cleanup of p_block. */
1442 p_owner->b_idle = false;
1445 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
1448 int canc = vlc_savecancel();
1449 DecoderProcess( p_dec, p_block );
1450 vlc_restorecancel( canc );
1456 * Create a decoder object
1458 * \param p_input the input thread
1459 * \param p_es the es descriptor
1460 * \param b_packetizer instead of a decoder
1461 * \return the decoder object
1463 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
1464 input_thread_t *p_input,
1465 const es_format_t *fmt, bool b_packetizer,
1466 input_resource_t *p_resource,
1467 sout_instance_t *p_sout )
1470 decoder_owner_sys_t *p_owner;
1471 es_format_t null_es_format;
1473 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
1477 p_dec->pf_decode_audio = NULL;
1478 p_dec->pf_decode_video = NULL;
1479 p_dec->pf_decode_sub = NULL;
1480 p_dec->pf_get_cc = NULL;
1481 p_dec->pf_packetize = NULL;
1483 /* Initialize the decoder */
1484 p_dec->p_module = NULL;
1486 memset( &null_es_format, 0, sizeof(es_format_t) );
1487 es_format_Copy( &p_dec->fmt_in, fmt );
1488 es_format_Copy( &p_dec->fmt_out, &null_es_format );
1490 p_dec->p_description = NULL;
1492 /* Allocate our private structure for the decoder */
1493 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
1494 if( unlikely(p_owner == NULL) )
1496 vlc_object_release( p_dec );
1499 p_owner->i_preroll_end = VLC_TS_INVALID;
1500 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
1501 p_owner->p_input = p_input;
1502 p_owner->p_resource = p_resource;
1503 p_owner->p_aout = NULL;
1504 p_owner->p_vout = NULL;
1505 p_owner->p_spu_vout = NULL;
1506 p_owner->i_spu_channel = 0;
1507 p_owner->i_spu_order = 0;
1508 p_owner->p_sout = p_sout;
1509 p_owner->p_sout_input = NULL;
1510 p_owner->p_packetizer = NULL;
1511 p_owner->b_packetizer = b_packetizer;
1512 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
1515 p_owner->p_fifo = block_FifoNew();
1516 if( unlikely(p_owner->p_fifo == NULL) )
1519 vlc_object_release( p_dec );
1523 /* Set buffers allocation callbacks for the decoders */
1524 p_dec->pf_aout_format_update = aout_update_format;
1525 p_dec->pf_vout_format_update = vout_update_format;
1526 p_dec->pf_vout_buffer_new = vout_new_buffer;
1527 p_dec->pf_spu_buffer_new = spu_new_buffer;
1529 p_dec->pf_get_attachments = DecoderGetInputAttachments;
1530 p_dec->pf_get_display_date = DecoderGetDisplayDate;
1531 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
1533 /* Find a suitable decoder/packetizer module */
1535 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
1537 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
1539 /* Check if decoder requires already packetized data */
1540 if( !b_packetizer &&
1541 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
1543 p_owner->p_packetizer =
1544 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
1545 if( p_owner->p_packetizer )
1547 es_format_Copy( &p_owner->p_packetizer->fmt_in,
1550 es_format_Copy( &p_owner->p_packetizer->fmt_out,
1553 p_owner->p_packetizer->p_module =
1554 module_need( p_owner->p_packetizer,
1555 "packetizer", "$packetizer", false );
1557 if( !p_owner->p_packetizer->p_module )
1559 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1560 vlc_object_release( p_owner->p_packetizer );
1561 p_owner->p_packetizer = NULL;
1566 /* Copy ourself the input replay gain */
1567 if( fmt->i_cat == AUDIO_ES )
1569 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
1571 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
1573 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
1574 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
1576 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
1578 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
1579 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
1585 vlc_mutex_init( &p_owner->lock );
1586 vlc_cond_init( &p_owner->wait_request );
1587 vlc_cond_init( &p_owner->wait_acknowledge );
1588 vlc_cond_init( &p_owner->wait_fifo );
1590 p_owner->b_fmt_description = false;
1591 p_owner->p_description = NULL;
1593 p_owner->b_paused = false;
1594 p_owner->pause.i_date = VLC_TS_INVALID;
1595 p_owner->pause.i_ignore = 0;
1597 p_owner->b_waiting = false;
1598 p_owner->b_first = true;
1599 p_owner->b_has_data = false;
1601 p_owner->b_flushing = false;
1602 p_owner->b_draining = false;
1603 p_owner->b_idle = false;
1606 p_owner->cc.b_supported = false;
1609 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
1610 p_owner->cc.b_supported = true;
1611 if( p_dec->pf_get_cc )
1612 p_owner->cc.b_supported = true;
1615 for( unsigned i = 0; i < 4; i++ )
1617 p_owner->cc.pb_present[i] = false;
1618 p_owner->cc.pp_decoder[i] = NULL;
1620 p_owner->i_ts_delay = 0;
1625 * Destroys a decoder object
1627 * \param p_dec the decoder object
1630 static void DeleteDecoder( decoder_t * p_dec )
1632 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1634 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1635 (char*)&p_dec->fmt_in.i_codec,
1636 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1638 /* Free all packets still in the decoder fifo. */
1639 block_FifoRelease( p_owner->p_fifo );
1642 if( p_owner->p_aout )
1644 /* TODO: REVISIT gap-less audio */
1645 aout_DecFlush( p_owner->p_aout, false );
1646 aout_DecDelete( p_owner->p_aout );
1647 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1648 if( p_owner->p_input != NULL )
1649 input_SendEventAout( p_owner->p_input );
1651 if( p_owner->p_vout )
1653 /* Hack to make sure all the the pictures are freed by the decoder
1654 * and that the vout is not paused anymore */
1655 vout_Reset( p_owner->p_vout );
1658 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1660 if( p_owner->p_input != NULL )
1661 input_SendEventVout( p_owner->p_input );
1665 if( p_owner->p_sout_input )
1667 sout_InputDelete( p_owner->p_sout_input );
1670 es_format_Clean( &p_owner->fmt );
1672 if( p_dec->fmt_out.i_cat == SPU_ES )
1674 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1677 if( p_owner->p_spu_vout == p_vout )
1678 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1679 vlc_object_release( p_vout );
1683 es_format_Clean( &p_dec->fmt_in );
1684 es_format_Clean( &p_dec->fmt_out );
1685 if( p_dec->p_description )
1686 vlc_meta_Delete( p_dec->p_description );
1687 if( p_owner->p_description )
1688 vlc_meta_Delete( p_owner->p_description );
1690 if( p_owner->p_packetizer )
1692 module_unneed( p_owner->p_packetizer,
1693 p_owner->p_packetizer->p_module );
1694 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1695 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1696 if( p_owner->p_packetizer->p_description )
1697 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1698 vlc_object_release( p_owner->p_packetizer );
1701 vlc_cond_destroy( &p_owner->wait_fifo );
1702 vlc_cond_destroy( &p_owner->wait_acknowledge );
1703 vlc_cond_destroy( &p_owner->wait_request );
1704 vlc_mutex_destroy( &p_owner->lock );
1706 vlc_object_release( p_dec );
1712 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
1714 if (codec != VLC_FOURCC('u','n','d','f')) {
1715 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
1716 if (!desc || !*desc)
1717 desc = N_("No description for this codec");
1718 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
1719 dialog_Fatal( p_dec, _("Codec not supported"),
1720 _("VLC could not decode the format \"%4.4s\" (%s)"),
1721 (char*)&codec, desc );
1723 msg_Err( p_dec, "could not identify codec" );
1724 dialog_Fatal( p_dec, _("Unidentified codec"),
1725 _("VLC could not identify the audio or video codec" ) );
1729 /* TODO: pass p_sout through p_resource? -- Courmisch */
1730 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
1731 const es_format_t *fmt, input_clock_t *p_clock,
1732 input_resource_t *p_resource,
1733 sout_instance_t *p_sout )
1735 decoder_t *p_dec = NULL;
1736 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
1739 /* Create the decoder configuration structure */
1740 p_dec = CreateDecoder( p_parent, p_input, fmt,
1741 p_sout != NULL, p_resource, p_sout );
1744 msg_Err( p_parent, "could not create %s", psz_type );
1745 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
1746 _("VLC could not open the %s module."),
1747 vlc_gettext( psz_type ) );
1751 if( !p_dec->p_module )
1753 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
1755 DeleteDecoder( p_dec );
1759 p_dec->p_owner->p_clock = p_clock;
1760 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
1762 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1763 i_priority = VLC_THREAD_PRIORITY_AUDIO;
1765 i_priority = VLC_THREAD_PRIORITY_VIDEO;
1767 /* Spawn the decoder thread */
1768 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
1770 msg_Err( p_dec, "cannot spawn decoder thread" );
1771 module_unneed( p_dec, p_dec->p_module );
1772 DeleteDecoder( p_dec );
1781 * Spawns a new decoder thread from the input thread
1783 * \param p_input the input thread
1784 * \param p_es the es descriptor
1785 * \return the spawned decoder object
1787 decoder_t *input_DecoderNew( input_thread_t *p_input,
1788 es_format_t *fmt, input_clock_t *p_clock,
1789 sout_instance_t *p_sout )
1791 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
1792 p_input->p->p_resource, p_sout );
1796 * Spawn a decoder thread outside of the input thread.
1798 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
1799 input_resource_t *p_resource )
1801 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
1806 * Kills a decoder thread and waits until it's finished
1808 * \param p_input the input thread
1809 * \param p_es the es descriptor
1812 void input_DecoderDelete( decoder_t *p_dec )
1814 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1816 vlc_cancel( p_owner->thread );
1818 /* Make sure we aren't paused/waiting/decoding anymore */
1819 vlc_mutex_lock( &p_owner->lock );
1820 p_owner->b_paused = false;
1821 p_owner->b_waiting = false;
1822 p_owner->b_flushing = true;
1823 vlc_cond_signal( &p_owner->wait_request );
1824 vlc_mutex_unlock( &p_owner->lock );
1826 vlc_join( p_owner->thread, NULL );
1828 module_unneed( p_dec, p_dec->p_module );
1831 if( p_dec->p_owner->cc.b_supported )
1834 for( i = 0; i < 4; i++ )
1835 input_DecoderSetCcState( p_dec, false, i );
1838 /* Delete decoder */
1839 DeleteDecoder( p_dec );
1843 * Put a block_t in the decoder's fifo.
1844 * Thread-safe w.r.t. the decoder. May be a cancellation point.
1846 * \param p_dec the decoder object
1847 * \param p_block the data block
1849 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
1851 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1853 vlc_fifo_Lock( p_owner->p_fifo );
1856 /* FIXME: ideally we would check the time amount of data
1857 * in the FIFO instead of its size. */
1858 /* 400 MiB, i.e. ~ 50mb/s for 60s */
1859 if( vlc_fifo_GetBytes( p_owner->p_fifo ) > 400*1024*1024 )
1861 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
1862 "consumed quickly enough), resetting fifo!" );
1863 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
1867 if( !p_owner->b_waiting )
1868 { /* The FIFO is not consumed when waiting, so pacing would deadlock VLC.
1869 * Locking is not necessary as b_waiting is only read, not written by
1870 * the decoder thread. */
1871 while( vlc_fifo_GetCount( p_owner->p_fifo ) >= 10 )
1872 vlc_fifo_WaitCond( p_owner->p_fifo, &p_owner->wait_fifo );
1875 vlc_fifo_QueueUnlocked( p_owner->p_fifo, p_block );
1876 vlc_fifo_Unlock( p_owner->p_fifo );
1879 bool input_DecoderIsEmpty( decoder_t * p_dec )
1881 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1883 assert( !p_owner->b_waiting );
1885 if( block_FifoCount( p_dec->p_owner->p_fifo ) > 0 )
1890 vlc_mutex_lock( &p_owner->lock );
1891 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout != NULL )
1892 b_empty = vout_IsEmpty( p_owner->p_vout );
1893 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout != NULL )
1894 b_empty = aout_DecIsEmpty( p_owner->p_aout );
1896 b_empty = true; /* TODO subtitles support */
1897 vlc_mutex_unlock( &p_owner->lock );
1903 * Signals that there are no further blocks to decode, and requests that the
1904 * decoder drain all pending buffers. This is used to ensure that all
1905 * intermediate buffers empty and no samples get lost at the end of the stream.
1907 * @note The function does not actually wait for draining. It just signals that
1908 * draining should be performed once the decoder has emptied FIFO.
1910 void input_DecoderDrain( decoder_t *p_dec )
1912 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1914 vlc_fifo_Lock( p_owner->p_fifo );
1915 p_owner->b_draining = true;
1916 vlc_fifo_Signal( p_owner->p_fifo );
1917 vlc_fifo_Unlock( p_owner->p_fifo );
1920 static void DecoderFlush( decoder_t *p_dec )
1922 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1924 vlc_assert_locked( &p_owner->lock );
1926 vlc_fifo_Lock( p_owner->p_fifo );
1927 /* Empty the fifo */
1928 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
1929 p_owner->b_draining = false; /* flush supersedes drain */
1930 vlc_fifo_Unlock( p_owner->p_fifo );
1932 /* Monitor for flush end */
1933 p_owner->b_flushing = true;
1934 vlc_cond_signal( &p_owner->wait_request );
1936 /* Send a special block */
1937 block_t *p_null = DecoderBlockFlushNew();
1940 input_DecoderDecode( p_dec, p_null, false );
1943 while( p_owner->b_flushing )
1944 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
1948 * Requests that the decoder immediately discard all pending buffers.
1949 * This is useful when seeking or when deselecting a stream.
1951 void input_DecoderFlush( decoder_t *p_dec )
1953 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1955 vlc_mutex_lock( &p_owner->lock );
1956 DecoderFlush( p_dec );
1957 vlc_mutex_unlock( &p_owner->lock );
1960 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
1962 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1965 vlc_mutex_lock( &p_owner->lock );
1966 for( i = 0; i < 4; i++ )
1967 pb_present[i] = p_owner->cc.pb_present[i];
1968 vlc_mutex_unlock( &p_owner->lock );
1971 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
1973 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1975 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
1977 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
1978 return VLC_EGENERIC;
1982 static const vlc_fourcc_t fcc[4] = {
1983 VLC_FOURCC('c', 'c', '1', ' '),
1984 VLC_FOURCC('c', 'c', '2', ' '),
1985 VLC_FOURCC('c', 'c', '3', ' '),
1986 VLC_FOURCC('c', 'c', '4', ' '),
1991 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
1992 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
1993 p_dec->p_owner->p_clock, p_owner->p_sout );
1996 msg_Err( p_dec, "could not create decoder" );
1997 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
1998 _("VLC could not open the decoder module.") );
1999 return VLC_EGENERIC;
2001 else if( !p_cc->p_module )
2003 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
2004 input_DecoderDelete(p_cc);
2005 return VLC_EGENERIC;
2007 p_cc->p_owner->p_clock = p_owner->p_clock;
2009 vlc_mutex_lock( &p_owner->lock );
2010 p_owner->cc.pp_decoder[i_channel] = p_cc;
2011 vlc_mutex_unlock( &p_owner->lock );
2017 vlc_mutex_lock( &p_owner->lock );
2018 p_cc = p_owner->cc.pp_decoder[i_channel];
2019 p_owner->cc.pp_decoder[i_channel] = NULL;
2020 vlc_mutex_unlock( &p_owner->lock );
2023 input_DecoderDelete(p_cc);
2028 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
2030 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2033 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
2034 return VLC_EGENERIC;
2036 vlc_mutex_lock( &p_owner->lock );
2037 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
2038 vlc_mutex_unlock( &p_owner->lock );
2039 return VLC_EGENERIC;
2042 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
2044 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2046 vlc_mutex_lock( &p_owner->lock );
2047 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
2048 * while the input is paused (e.g. add sub file), then b_paused is
2049 * (incorrectly) false. */
2050 if( likely(p_owner->b_paused != b_paused) ) {
2051 p_owner->b_paused = b_paused;
2052 p_owner->pause.i_date = i_date;
2053 p_owner->pause.i_ignore = 0;
2054 vlc_cond_signal( &p_owner->wait_request );
2056 /* XXX only audio and video output have to be paused.
2057 * - for sout it is useless
2058 * - for subs, it is done by the vout
2060 if( p_owner->fmt.i_cat == AUDIO_ES )
2062 if( p_owner->p_aout )
2063 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
2065 else if( p_owner->fmt.i_cat == VIDEO_ES )
2067 if( p_owner->p_vout )
2068 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
2071 vlc_mutex_unlock( &p_owner->lock );
2074 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
2076 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2078 vlc_mutex_lock( &p_owner->lock );
2079 p_owner->i_ts_delay = i_delay;
2080 vlc_mutex_unlock( &p_owner->lock );
2083 void input_DecoderStartWait( decoder_t *p_dec )
2085 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2087 assert( !p_owner->b_waiting );
2089 vlc_mutex_lock( &p_owner->lock );
2090 p_owner->b_first = true;
2091 p_owner->b_has_data = false;
2092 p_owner->b_waiting = true;
2093 vlc_cond_signal( &p_owner->wait_request );
2094 vlc_mutex_unlock( &p_owner->lock );
2097 void input_DecoderStopWait( decoder_t *p_dec )
2099 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2101 assert( p_owner->b_waiting );
2103 vlc_mutex_lock( &p_owner->lock );
2104 p_owner->b_waiting = false;
2105 vlc_cond_signal( &p_owner->wait_request );
2106 vlc_mutex_unlock( &p_owner->lock );
2109 void input_DecoderWait( decoder_t *p_dec )
2111 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2113 assert( p_owner->b_waiting );
2115 vlc_mutex_lock( &p_owner->lock );
2116 vlc_fifo_Lock( p_owner->p_fifo );
2117 while( !p_owner->b_has_data )
2119 if( p_owner->b_idle )
2121 assert( vlc_fifo_IsEmpty( p_owner->p_fifo ) );
2122 msg_Warn( p_dec, "can't wait without data to decode" );
2125 vlc_fifo_Signal( p_owner->p_fifo );
2126 vlc_fifo_Unlock( p_owner->p_fifo );
2127 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
2128 vlc_fifo_Lock( p_owner->p_fifo );
2130 vlc_fifo_Unlock( p_owner->p_fifo );
2131 vlc_mutex_unlock( &p_owner->lock );
2134 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
2136 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2140 vlc_mutex_lock( &p_owner->lock );
2141 if( p_owner->fmt.i_cat == VIDEO_ES )
2143 if( p_owner->b_paused && p_owner->p_vout )
2145 vout_NextPicture( p_owner->p_vout, pi_duration );
2146 p_owner->pause.i_ignore++;
2147 vlc_cond_signal( &p_owner->wait_request );
2152 /* TODO subtitle should not be flushed */
2153 p_owner->b_waiting = false;
2154 DecoderFlush( p_dec );
2156 vlc_mutex_unlock( &p_owner->lock );
2159 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
2161 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2164 vlc_mutex_lock( &p_owner->lock );
2165 b_changed = p_owner->b_fmt_description;
2169 es_format_Copy( p_fmt, &p_owner->fmt );
2174 if( p_owner->p_description )
2176 *pp_meta = vlc_meta_New();
2178 vlc_meta_Merge( *pp_meta, p_owner->p_description );
2181 p_owner->b_fmt_description = false;
2183 vlc_mutex_unlock( &p_owner->lock );
2187 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
2189 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2191 return block_FifoSize( p_owner->p_fifo );
2194 void input_DecoderGetObjects( decoder_t *p_dec,
2195 vout_thread_t **pp_vout, audio_output_t **pp_aout )
2197 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2199 vlc_mutex_lock( &p_owner->lock );
2201 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
2203 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
2204 vlc_mutex_unlock( &p_owner->lock );