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;
93 /* -- These variables need locking on write(only) -- */
94 audio_output_t *p_aout;
96 vout_thread_t *p_vout;
98 /* -- Theses variables need locking on read *and* write -- */
122 decoder_t *pp_decoder[4];
129 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
130 * a bogus PTS and won't be displayed */
131 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
134 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
136 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
138 decoder_owner_sys_t *p_owner = p_dec->p_owner;
140 vlc_assert_locked( &p_owner->lock );
142 es_format_Clean( &p_owner->fmt );
143 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
145 /* Move p_description */
146 if( p_dec->p_description != NULL )
148 if( p_owner->p_description != NULL )
149 vlc_meta_Delete( p_owner->p_description );
150 p_owner->p_description = p_dec->p_description;
151 p_dec->p_description = NULL;
154 p_owner->b_fmt_description = true;
157 static bool DecoderIsFlushing( decoder_t *p_dec )
159 decoder_owner_sys_t *p_owner = p_dec->p_owner;
162 vlc_mutex_lock( &p_owner->lock );
164 b_flushing = p_owner->b_flushing;
166 vlc_mutex_unlock( &p_owner->lock );
171 static void DecoderSignalWait( decoder_t *p_dec )
173 decoder_owner_sys_t *p_owner = p_dec->p_owner;
175 vlc_mutex_lock( &p_owner->lock );
177 if( p_owner->b_waiting )
179 p_owner->b_has_data = true;
180 vlc_cond_signal( &p_owner->wait_acknowledge );
183 vlc_mutex_unlock( &p_owner->lock );
186 static block_t *DecoderBlockFlushNew()
188 block_t *p_null = block_Alloc( 128 );
192 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
193 BLOCK_FLAG_CORRUPTED |
194 BLOCK_FLAG_CORE_FLUSH;
195 memset( p_null->p_buffer, 0, p_null->i_buffer );
200 /*****************************************************************************
201 * Buffers allocation callbacks for the decoders
202 *****************************************************************************/
203 static vout_thread_t *aout_request_vout( void *p_private,
204 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
206 decoder_t *p_dec = p_private;
207 decoder_owner_sys_t *p_owner = p_dec->p_owner;
208 input_thread_t *p_input = p_owner->p_input;
210 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
212 if( p_input != NULL )
213 input_SendEventVout( p_input );
218 static int aout_update_format( decoder_t *p_dec )
220 decoder_owner_sys_t *p_owner = p_dec->p_owner;
223 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
225 audio_output_t *p_aout = p_owner->p_aout;
227 /* Parameters changed, restart the aout */
228 vlc_mutex_lock( &p_owner->lock );
230 aout_DecDelete( p_owner->p_aout );
231 p_owner->p_aout = NULL;
233 vlc_mutex_unlock( &p_owner->lock );
234 input_resource_PutAout( p_owner->p_resource, p_aout );
237 if( p_owner->p_aout == NULL )
239 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
241 audio_sample_format_t format = p_dec->fmt_out.audio;
242 aout_FormatPrepare( &format );
244 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
246 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
247 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
249 if( i_force_dolby == 1 )
251 format.i_original_channels = format.i_original_channels |
252 AOUT_CHAN_DOLBYSTEREO;
254 else /* i_force_dolby == 2 */
256 format.i_original_channels = format.i_original_channels &
257 ~AOUT_CHAN_DOLBYSTEREO;
261 aout_request_vout_t request_vout = {
262 .pf_request_vout = aout_request_vout,
265 audio_output_t *p_aout;
267 p_aout = input_resource_GetAout( p_owner->p_resource );
270 if( aout_DecNew( p_aout, &format,
271 &p_dec->fmt_out.audio_replay_gain,
274 input_resource_PutAout( p_owner->p_resource, p_aout );
279 vlc_mutex_lock( &p_owner->lock );
281 p_owner->p_aout = p_aout;
283 DecoderUpdateFormatLocked( p_dec );
284 aout_FormatPrepare( &p_owner->fmt.audio );
286 if( unlikely(p_owner->b_paused) && p_aout != NULL )
287 /* fake pause if needed */
288 aout_DecChangePause( p_aout, true, mdate() );
290 vlc_mutex_unlock( &p_owner->lock );
292 if( p_owner->p_input != NULL )
293 input_SendEventAout( p_owner->p_input );
297 msg_Err( p_dec, "failed to create audio output" );
298 p_dec->b_error = true;
302 p_dec->fmt_out.audio.i_bytes_per_frame =
303 p_owner->fmt.audio.i_bytes_per_frame;
304 p_dec->fmt_out.audio.i_frame_length =
305 p_owner->fmt.audio.i_frame_length;
310 static int vout_update_format( decoder_t *p_dec )
312 decoder_owner_sys_t *p_owner = p_dec->p_owner;
314 if( p_owner->p_vout == NULL
315 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
316 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
317 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
318 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
319 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
320 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
321 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
322 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
323 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
324 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
326 vout_thread_t *p_vout;
328 if( !p_dec->fmt_out.video.i_width ||
329 !p_dec->fmt_out.video.i_height )
331 /* Can't create a new vout without display size */
335 video_format_t fmt = p_dec->fmt_out.video;
336 fmt.i_chroma = p_dec->fmt_out.i_codec;
338 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
340 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
341 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
343 while( fmt.i_width % dsc->p[i].w.den )
345 while( fmt.i_height % dsc->p[i].h.den )
350 if( !fmt.i_visible_width || !fmt.i_visible_height )
352 if( p_dec->fmt_in.video.i_visible_width &&
353 p_dec->fmt_in.video.i_visible_height )
355 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
356 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
357 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
358 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
362 fmt.i_visible_width = fmt.i_width;
363 fmt.i_visible_height = fmt.i_height;
369 if( fmt.i_visible_height == 1088 &&
370 var_CreateGetBool( p_dec, "hdtv-fix" ) )
372 fmt.i_visible_height = 1080;
373 if( !(fmt.i_sar_num % 136))
375 fmt.i_sar_num *= 135;
376 fmt.i_sar_den *= 136;
378 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
381 if( !fmt.i_sar_num || !fmt.i_sar_den )
387 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
388 fmt.i_sar_num, fmt.i_sar_den, 50000 );
390 vlc_mutex_lock( &p_owner->lock );
392 p_vout = p_owner->p_vout;
393 p_owner->p_vout = NULL;
394 vlc_mutex_unlock( &p_owner->lock );
397 switch( p_dec->fmt_in.i_codec )
401 case VLC_CODEC_DIRAC: /* FIXME valid ? */
414 p_vout = input_resource_RequestVout( p_owner->p_resource,
417 p_dec->i_extra_picture_buffers + 1,
419 vlc_mutex_lock( &p_owner->lock );
420 p_owner->p_vout = p_vout;
422 DecoderUpdateFormatLocked( p_dec );
423 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
424 vlc_mutex_unlock( &p_owner->lock );
426 if( p_owner->p_input != NULL )
427 input_SendEventVout( p_owner->p_input );
430 msg_Err( p_dec, "failed to create video output" );
431 p_dec->b_error = true;
438 static picture_t *vout_new_buffer( decoder_t *p_dec )
440 decoder_owner_sys_t *p_owner = p_dec->p_owner;
444 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
447 picture_t *p_picture = vout_GetPicture( p_owner->p_vout );
452 DecoderSignalWait( p_dec );
454 /* Check the decoder doesn't leak pictures */
455 vout_FixLeaks( p_owner->p_vout );
457 /* FIXME add a vout_WaitPictureAvailable (timedwait) */
458 msleep( VOUT_OUTMEM_SLEEP );
462 static subpicture_t *spu_new_buffer( decoder_t *p_dec,
463 const subpicture_updater_t *p_updater )
465 decoder_owner_sys_t *p_owner = p_dec->p_owner;
466 vout_thread_t *p_vout = NULL;
467 subpicture_t *p_subpic;
470 while( i_attempts-- )
472 if( DecoderIsFlushing( p_dec ) || p_dec->b_error )
475 p_vout = input_resource_HoldVout( p_owner->p_resource );
479 msleep( DECODER_SPU_VOUT_WAIT_DURATION );
484 msg_Warn( p_dec, "no vout found, dropping subpicture" );
488 if( p_owner->p_spu_vout != p_vout )
490 p_owner->i_spu_channel = vout_RegisterSubpictureChannel( p_vout );
491 p_owner->i_spu_order = 0;
492 p_owner->p_spu_vout = p_vout;
495 p_subpic = subpicture_New( p_updater );
498 p_subpic->i_channel = p_owner->i_spu_channel;
499 p_subpic->i_order = p_owner->i_spu_order++;
500 p_subpic->b_subtitle = true;
503 vlc_object_release( p_vout );
508 static int DecoderGetInputAttachments( decoder_t *p_dec,
509 input_attachment_t ***ppp_attachment,
512 input_thread_t *p_input = p_dec->p_owner->p_input;
514 if( unlikely(p_input == NULL) )
516 return input_Control( p_input, INPUT_GET_ATTACHMENTS,
517 ppp_attachment, pi_attachment );
520 static mtime_t DecoderGetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
522 decoder_owner_sys_t *p_owner = p_dec->p_owner;
524 vlc_mutex_lock( &p_owner->lock );
525 if( p_owner->b_waiting || p_owner->b_paused )
526 i_ts = VLC_TS_INVALID;
527 vlc_mutex_unlock( &p_owner->lock );
529 if( !p_owner->p_clock || i_ts <= VLC_TS_INVALID )
532 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_owner->p_clock, NULL, &i_ts, NULL, INT64_MAX ) ) {
533 msg_Err(p_dec, "Could not get display date for timestamp %"PRId64"", i_ts);
534 return VLC_TS_INVALID;
540 static int DecoderGetDisplayRate( decoder_t *p_dec )
542 decoder_owner_sys_t *p_owner = p_dec->p_owner;
544 if( !p_owner->p_clock )
545 return INPUT_RATE_DEFAULT;
546 return input_clock_GetRate( p_owner->p_clock );
549 /*****************************************************************************
551 *****************************************************************************/
552 picture_t *decoder_NewPicture( decoder_t *p_decoder )
554 if( decoder_UpdateVideoFormat( p_decoder ) )
557 picture_t *p_picture = p_decoder->pf_vout_buffer_new( p_decoder );
559 msg_Warn( p_decoder, "can't get output picture" );
563 block_t *decoder_NewAudioBuffer( decoder_t *dec, int samples )
565 if( decoder_UpdateAudioFormat( dec ) )
568 size_t length = samples * dec->fmt_out.audio.i_bytes_per_frame
569 / dec->fmt_out.audio.i_frame_length;
570 block_t *block = block_Alloc( length );
571 if( likely(block != NULL) )
573 block->i_nb_samples = samples;
574 block->i_pts = block->i_length = 0;
579 subpicture_t *decoder_NewSubpicture( decoder_t *p_decoder,
580 const subpicture_updater_t *p_dyn )
582 subpicture_t *p_subpicture = p_decoder->pf_spu_buffer_new( p_decoder, p_dyn );
584 msg_Warn( p_decoder, "can't get output subpicture" );
588 /* decoder_GetInputAttachments:
590 int decoder_GetInputAttachments( decoder_t *p_dec,
591 input_attachment_t ***ppp_attachment,
594 if( !p_dec->pf_get_attachments )
597 return p_dec->pf_get_attachments( p_dec, ppp_attachment, pi_attachment );
599 /* decoder_GetDisplayDate:
601 mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
603 if( !p_dec->pf_get_display_date )
604 return VLC_TS_INVALID;
606 return p_dec->pf_get_display_date( p_dec, i_ts );
608 /* decoder_GetDisplayRate:
610 int decoder_GetDisplayRate( decoder_t *p_dec )
612 if( !p_dec->pf_get_display_rate )
613 return INPUT_RATE_DEFAULT;
615 return p_dec->pf_get_display_rate( p_dec );
618 static bool DecoderWaitUnblock( decoder_t *p_dec )
620 decoder_owner_sys_t *p_owner = p_dec->p_owner;
622 vlc_assert_locked( &p_owner->lock );
626 if( p_owner->b_flushing )
628 if( p_owner->b_paused )
630 if( p_owner->b_waiting && !p_owner->b_has_data )
632 if( p_owner->pause.i_ignore > 0 )
634 p_owner->pause.i_ignore--;
640 if( !p_owner->b_waiting || !p_owner->b_has_data )
643 vlc_cond_wait( &p_owner->wait_request, &p_owner->lock );
646 return p_owner->b_flushing;
649 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
651 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
652 *pi_preroll = INT64_MAX;
653 else if( p->i_dts > VLC_TS_INVALID )
654 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
655 else if( p->i_pts > VLC_TS_INVALID )
656 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
659 static void DecoderFixTs( decoder_t *p_dec, mtime_t *pi_ts0, mtime_t *pi_ts1,
660 mtime_t *pi_duration, int *pi_rate, mtime_t i_ts_bound )
662 decoder_owner_sys_t *p_owner = p_dec->p_owner;
663 input_clock_t *p_clock = p_owner->p_clock;
665 vlc_assert_locked( &p_owner->lock );
667 const mtime_t i_es_delay = p_owner->i_ts_delay;
672 const bool b_ephemere = pi_ts1 && *pi_ts0 == *pi_ts1;
675 if( *pi_ts0 > VLC_TS_INVALID )
677 *pi_ts0 += i_es_delay;
678 if( pi_ts1 && *pi_ts1 > VLC_TS_INVALID )
679 *pi_ts1 += i_es_delay;
680 if( input_clock_ConvertTS( VLC_OBJECT(p_dec), p_clock, &i_rate, pi_ts0, pi_ts1, i_ts_bound ) ) {
682 msg_Err(p_dec, "Could not convert timestamps %"PRId64
683 ", %"PRId64"", *pi_ts0, *pi_ts1);
685 msg_Err(p_dec, "Could not convert timestamp %"PRId64, *pi_ts0);
686 *pi_ts0 = VLC_TS_INVALID;
691 i_rate = input_clock_GetRate( p_clock );
694 /* Do not create ephemere data because of rounding errors */
695 if( !b_ephemere && pi_ts1 && *pi_ts0 == *pi_ts1 )
699 *pi_duration = ( *pi_duration * i_rate + INPUT_RATE_DEFAULT-1 )
700 / INPUT_RATE_DEFAULT;
707 * If *pb_reject, it does nothing, otherwise it waits for the given
708 * deadline or a flush request (in which case it set *pi_reject to true.
710 static void DecoderWaitDate( decoder_t *p_dec,
711 bool *pb_reject, mtime_t i_deadline )
713 decoder_owner_sys_t *p_owner = p_dec->p_owner;
715 vlc_assert_locked( &p_owner->lock );
717 if( *pb_reject || i_deadline < 0 )
722 if( p_owner->b_flushing )
728 while( vlc_cond_timedwait( &p_owner->wait_request, &p_owner->lock,
735 static int DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block )
737 decoder_owner_sys_t *p_owner = p_dec->p_owner;
739 assert( p_owner->p_clock );
740 assert( !p_sout_block->p_next );
742 vlc_mutex_lock( &p_owner->lock );
744 if( p_owner->b_waiting )
746 p_owner->b_has_data = true;
747 vlc_cond_signal( &p_owner->wait_acknowledge );
750 bool b_reject = DecoderWaitUnblock( p_dec );
752 DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
753 &p_sout_block->i_length, NULL, INT64_MAX );
755 vlc_mutex_unlock( &p_owner->lock );
759 /* FIXME --VLC_TS_INVALID inspect stream_output*/
760 return sout_InputSendBuffer( p_owner->p_sout_input, p_sout_block );
764 block_Release( p_sout_block );
769 /* This function process a block for sout
771 static void DecoderProcessSout( decoder_t *p_dec, block_t *p_block )
773 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
774 block_t *p_sout_block;
776 while( ( p_sout_block =
777 p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
779 if( p_owner->p_sout_input == NULL )
781 vlc_mutex_lock( &p_owner->lock );
782 DecoderUpdateFormatLocked( p_dec );
783 vlc_mutex_unlock( &p_owner->lock );
785 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
786 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
787 if( p_dec->fmt_in.psz_language )
789 free( p_owner->fmt.psz_language );
790 p_owner->fmt.psz_language =
791 strdup( p_dec->fmt_in.psz_language );
794 p_owner->p_sout_input =
795 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
797 if( p_owner->p_sout_input == NULL )
799 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
800 (char *)&p_owner->fmt.i_codec );
801 p_dec->b_error = true;
803 block_ChainRelease(p_sout_block);
808 while( p_sout_block )
810 block_t *p_next = p_sout_block->p_next;
812 p_sout_block->p_next = NULL;
814 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
816 msg_Err( p_dec, "cannot continue streaming due to errors" );
818 p_dec->b_error = true;
821 block_ChainRelease( p_next );
825 p_sout_block = p_next;
831 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
833 decoder_owner_sys_t *p_owner = p_dec->p_owner;
836 bool b_processed = false;
840 assert( p_dec_cc->pf_get_cc != NULL );
842 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
843 if( !p_owner->cc.b_supported )
846 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
850 vlc_mutex_lock( &p_owner->lock );
851 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
853 p_owner->cc.pb_present[i] |= pb_present[i];
854 if( p_owner->cc.pp_decoder[i] )
858 for( i = 0; i < 4; i++ )
860 if( !p_owner->cc.pp_decoder[i] )
863 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
864 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
869 vlc_mutex_unlock( &p_owner->lock );
872 block_Release( p_cc );
875 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
876 int *pi_played_sum, int *pi_lost_sum )
878 decoder_owner_sys_t *p_owner = p_dec->p_owner;
879 vout_thread_t *p_vout = p_owner->p_vout;
881 if( p_picture->date <= VLC_TS_INVALID )
883 msg_Warn( p_dec, "non-dated video buffer received" );
885 picture_Release( p_picture );
890 vlc_mutex_lock( &p_owner->lock );
892 if( p_owner->b_waiting && !p_owner->b_first )
894 p_owner->b_has_data = true;
895 vlc_cond_signal( &p_owner->wait_acknowledge );
897 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
899 bool b_reject = DecoderWaitUnblock( p_dec );
901 if( p_owner->b_waiting )
903 assert( p_owner->b_first );
904 msg_Dbg( p_dec, "Received first picture" );
905 p_owner->b_first = false;
906 p_picture->b_force = true;
909 const bool b_dated = p_picture->date > VLC_TS_INVALID;
910 int i_rate = INPUT_RATE_DEFAULT;
911 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
912 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
914 vlc_mutex_unlock( &p_owner->lock );
917 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
922 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
924 /* Be sure to not display old picture after our own */
925 vout_Flush( p_vout, p_picture->date );
926 p_owner->i_last_rate = i_rate;
928 vout_PutPicture( p_vout, p_picture );
933 msg_Warn( p_dec, "early picture skipped" );
935 msg_Warn( p_dec, "non-dated video buffer received" );
938 picture_Release( p_picture );
942 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
944 *pi_played_sum += i_tmp_display;
945 *pi_lost_sum += i_tmp_lost;
948 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
950 decoder_owner_sys_t *p_owner = p_dec->p_owner;
956 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
958 vout_thread_t *p_vout = p_owner->p_vout;
959 if( DecoderIsFlushing( p_dec ) )
960 { /* It prevent freezing VLC in case of broken decoder */
961 picture_Release( p_pic );
963 block_Release( p_block );
969 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
971 picture_Release( p_pic );
975 if( p_owner->i_preroll_end > VLC_TS_INVALID )
977 msg_Dbg( p_dec, "End of video preroll" );
979 vout_Flush( p_vout, VLC_TS_INVALID+1 );
981 p_owner->i_preroll_end = VLC_TS_INVALID;
984 if( p_dec->pf_get_cc &&
985 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
986 DecoderGetCc( p_dec, p_dec );
988 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
991 /* Update ugly stat */
992 input_thread_t *p_input = p_owner->p_input;
994 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
996 vlc_mutex_lock( &p_input->p->counters.counters_lock );
997 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
998 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
999 stats_Update( p_input->p->counters.p_displayed_pictures,
1001 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1005 /* This function process a video block
1007 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1009 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1011 if( p_owner->p_packetizer )
1013 block_t *p_packetized_block;
1014 decoder_t *p_packetizer = p_owner->p_packetizer;
1016 while( (p_packetized_block =
1017 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1019 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1021 es_format_Clean( &p_dec->fmt_in );
1022 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1025 /* If the packetizer provides aspect ratio information, pass it
1026 * to the decoder as a hint if the decoder itself can't provide
1027 * it. Copy it regardless of the current value of the decoder input
1028 * format aspect ratio, to properly propagate changes in aspect
1030 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1031 p_packetizer->fmt_out.video.i_sar_den > 0)
1033 p_dec->fmt_in.video.i_sar_num =
1034 p_packetizer->fmt_out.video.i_sar_num;
1035 p_dec->fmt_in.video.i_sar_den=
1036 p_packetizer->fmt_out.video.i_sar_den;
1039 if( p_packetizer->pf_get_cc )
1040 DecoderGetCc( p_dec, p_packetizer );
1042 while( p_packetized_block )
1044 block_t *p_next = p_packetized_block->p_next;
1045 p_packetized_block->p_next = NULL;
1047 DecoderDecodeVideo( p_dec, p_packetized_block );
1049 p_packetized_block = p_next;
1052 /* The packetizer does not output a block that tell the decoder to flush
1056 block_t *p_null = DecoderBlockFlushNew();
1058 DecoderDecodeVideo( p_dec, p_null );
1063 DecoderDecodeVideo( p_dec, p_block );
1066 if( b_flush && p_owner->p_vout )
1067 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1070 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1071 int *pi_played_sum, int *pi_lost_sum )
1073 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1074 audio_output_t *p_aout = p_owner->p_aout;
1077 if( p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1079 msg_Warn( p_dec, "non-dated audio buffer received" );
1081 block_Release( p_audio );
1086 vlc_mutex_lock( &p_owner->lock );
1088 if( p_owner->b_waiting )
1090 p_owner->b_has_data = true;
1091 vlc_cond_signal( &p_owner->wait_acknowledge );
1094 bool b_reject = DecoderWaitUnblock( p_dec );
1095 bool b_paused = p_owner->b_paused;
1098 int i_rate = INPUT_RATE_DEFAULT;
1100 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1101 &i_rate, AOUT_MAX_ADVANCE_TIME );
1103 if( p_audio->i_pts <= VLC_TS_INVALID
1104 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1105 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1108 DecoderWaitDate( p_dec, &b_reject,
1109 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1111 if( unlikely(p_owner->b_paused != b_paused) )
1112 goto race; /* race with input thread? retry... */
1113 if( p_aout == NULL )
1118 assert( !p_owner->b_paused );
1119 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1120 *pi_played_sum += 1;
1121 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1125 msg_Dbg( p_dec, "discarded audio buffer" );
1127 block_Release( p_audio );
1129 vlc_mutex_unlock( &p_owner->lock );
1132 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1134 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1135 block_t *p_aout_buf;
1140 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1142 if( DecoderIsFlushing( p_dec ) )
1144 /* It prevent freezing VLC in case of broken decoder */
1145 block_Release( p_aout_buf );
1147 block_Release( p_block );
1152 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1153 p_aout_buf->i_pts < p_owner->i_preroll_end )
1155 block_Release( p_aout_buf );
1159 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1161 msg_Dbg( p_dec, "End of audio preroll" );
1162 if( p_owner->p_aout )
1163 aout_DecFlush( p_owner->p_aout );
1165 p_owner->i_preroll_end = VLC_TS_INVALID;
1168 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1171 /* Update ugly stat */
1172 input_thread_t *p_input = p_owner->p_input;
1174 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1176 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1177 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1178 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1179 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1180 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1184 /* This function process a audio block
1186 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1188 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1190 if( p_owner->p_packetizer )
1192 block_t *p_packetized_block;
1193 decoder_t *p_packetizer = p_owner->p_packetizer;
1195 while( (p_packetized_block =
1196 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1198 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1200 es_format_Clean( &p_dec->fmt_in );
1201 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1204 while( p_packetized_block )
1206 block_t *p_next = p_packetized_block->p_next;
1207 p_packetized_block->p_next = NULL;
1209 DecoderDecodeAudio( p_dec, p_packetized_block );
1211 p_packetized_block = p_next;
1214 /* The packetizer does not output a block that tell the decoder to flush
1218 block_t *p_null = DecoderBlockFlushNew();
1220 DecoderDecodeAudio( p_dec, p_null );
1225 DecoderDecodeAudio( p_dec, p_block );
1228 if( b_flush && p_owner->p_aout )
1229 aout_DecFlush( p_owner->p_aout );
1232 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1234 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1235 vout_thread_t *p_vout = p_owner->p_spu_vout;
1238 if( p_subpic->i_start <= VLC_TS_INVALID )
1240 msg_Warn( p_dec, "non-dated spu buffer received" );
1241 subpicture_Delete( p_subpic );
1246 vlc_mutex_lock( &p_owner->lock );
1248 if( p_owner->b_waiting )
1250 p_owner->b_has_data = true;
1251 vlc_cond_signal( &p_owner->wait_acknowledge );
1254 bool b_reject = DecoderWaitUnblock( p_dec );
1256 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1259 if( p_subpic->i_start <= VLC_TS_INVALID )
1262 DecoderWaitDate( p_dec, &b_reject,
1263 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1264 vlc_mutex_unlock( &p_owner->lock );
1267 vout_PutSubpicture( p_vout, p_subpic );
1269 subpicture_Delete( p_subpic );
1272 /* This function process a subtitle block
1274 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1276 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1278 input_thread_t *p_input = p_owner->p_input;
1279 vout_thread_t *p_vout;
1280 subpicture_t *p_spu;
1282 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1284 if( p_input != NULL )
1286 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1287 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1288 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1291 p_vout = input_resource_HoldVout( p_owner->p_resource );
1292 if( p_vout && p_owner->p_spu_vout == p_vout )
1294 /* Preroll does not work very well with subtitle */
1295 if( p_spu->i_start > VLC_TS_INVALID &&
1296 p_spu->i_start < p_owner->i_preroll_end &&
1297 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1299 subpicture_Delete( p_spu );
1303 DecoderPlaySpu( p_dec, p_spu );
1308 subpicture_Delete( p_spu );
1311 vlc_object_release( p_vout );
1314 if( b_flush && p_owner->p_spu_vout )
1316 p_vout = input_resource_HoldVout( p_owner->p_resource );
1318 if( p_vout && p_owner->p_spu_vout == p_vout )
1319 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1322 vlc_object_release( p_vout );
1327 static void DecoderProcessOnFlush( decoder_t *p_dec )
1329 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1331 vlc_mutex_lock( &p_owner->lock );
1333 if( p_owner->b_flushing )
1335 p_owner->b_flushing = false;
1336 vlc_cond_signal( &p_owner->wait_acknowledge );
1338 vlc_mutex_unlock( &p_owner->lock );
1344 * \param p_dec the decoder object
1345 * \param p_block the block to decode
1346 * \return VLC_SUCCESS or an error code
1348 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1350 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1351 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1353 if( p_dec->b_error )
1356 block_Release( p_block );
1360 if( p_block && p_block->i_buffer <= 0 )
1362 assert( !b_flush_request );
1363 block_Release( p_block );
1368 if( p_owner->b_packetizer )
1371 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1373 DecoderProcessSout( p_dec, p_block );
1378 bool b_flush = false;
1382 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1383 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1385 b_flush = !b_flushing && b_flush_request;
1387 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1390 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1392 DecoderProcessAudio( p_dec, p_block, b_flush );
1394 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1396 DecoderProcessVideo( p_dec, p_block, b_flush );
1398 else if( p_dec->fmt_out.i_cat == SPU_ES )
1400 DecoderProcessSpu( p_dec, p_block, b_flush );
1404 msg_Err( p_dec, "unknown ES format" );
1405 p_dec->b_error = true;
1411 if( b_flush_request )
1412 DecoderProcessOnFlush( p_dec );
1417 * The decoding main loop
1419 * \param p_dec the decoder
1421 static void *DecoderThread( void *p_data )
1423 decoder_t *p_dec = (decoder_t *)p_data;
1424 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1426 /* The decoder's main loop */
1430 bool draining = false;
1432 vlc_fifo_Lock( p_owner->p_fifo );
1433 vlc_fifo_CleanupPush( p_owner->p_fifo );
1435 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
1437 if( p_owner->b_draining )
1438 { /* We have emptied the FIFO and there is a pending request to
1439 * drain. Pass p_block = NULL to decoder just once. */
1440 p_owner->b_draining = false;
1444 if( p_owner->b_woken )
1447 vlc_fifo_Wait( p_owner->p_fifo );
1448 /* Make sure there is no cancellation point other than this one^^.
1449 * If you need one, be sure to push cleanup of p_block. */
1452 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
1453 if( p_block != NULL )
1454 vlc_cond_signal( &p_owner->wait_acknowledge );
1456 p_owner->b_woken = false;
1459 if( p_block == NULL )
1460 DecoderSignalWait( p_dec );
1462 if( p_block != NULL || draining )
1464 int canc = vlc_savecancel();
1465 DecoderProcess( p_dec, p_block );
1466 vlc_restorecancel( canc );
1473 * Create a decoder object
1475 * \param p_input the input thread
1476 * \param p_es the es descriptor
1477 * \param b_packetizer instead of a decoder
1478 * \return the decoder object
1480 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
1481 input_thread_t *p_input,
1482 const es_format_t *fmt, bool b_packetizer,
1483 input_resource_t *p_resource,
1484 sout_instance_t *p_sout )
1487 decoder_owner_sys_t *p_owner;
1488 es_format_t null_es_format;
1490 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
1494 p_dec->pf_decode_audio = NULL;
1495 p_dec->pf_decode_video = NULL;
1496 p_dec->pf_decode_sub = NULL;
1497 p_dec->pf_get_cc = NULL;
1498 p_dec->pf_packetize = NULL;
1500 /* Initialize the decoder */
1501 p_dec->p_module = NULL;
1503 memset( &null_es_format, 0, sizeof(es_format_t) );
1504 es_format_Copy( &p_dec->fmt_in, fmt );
1505 es_format_Copy( &p_dec->fmt_out, &null_es_format );
1507 p_dec->p_description = NULL;
1509 /* Allocate our private structure for the decoder */
1510 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
1511 if( unlikely(p_owner == NULL) )
1513 vlc_object_release( p_dec );
1516 p_owner->i_preroll_end = VLC_TS_INVALID;
1517 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
1518 p_owner->p_input = p_input;
1519 p_owner->p_resource = p_resource;
1520 p_owner->p_aout = NULL;
1521 p_owner->p_vout = NULL;
1522 p_owner->p_spu_vout = NULL;
1523 p_owner->i_spu_channel = 0;
1524 p_owner->i_spu_order = 0;
1525 p_owner->p_sout = p_sout;
1526 p_owner->p_sout_input = NULL;
1527 p_owner->p_packetizer = NULL;
1528 p_owner->b_packetizer = b_packetizer;
1529 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
1532 p_owner->b_woken = false;
1533 p_owner->p_fifo = block_FifoNew();
1534 if( unlikely(p_owner->p_fifo == NULL) )
1537 vlc_object_release( p_dec );
1541 /* Set buffers allocation callbacks for the decoders */
1542 p_dec->pf_aout_format_update = aout_update_format;
1543 p_dec->pf_vout_format_update = vout_update_format;
1544 p_dec->pf_vout_buffer_new = vout_new_buffer;
1545 p_dec->pf_spu_buffer_new = spu_new_buffer;
1547 p_dec->pf_get_attachments = DecoderGetInputAttachments;
1548 p_dec->pf_get_display_date = DecoderGetDisplayDate;
1549 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
1551 /* Find a suitable decoder/packetizer module */
1553 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
1555 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
1557 /* Check if decoder requires already packetized data */
1558 if( !b_packetizer &&
1559 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
1561 p_owner->p_packetizer =
1562 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
1563 if( p_owner->p_packetizer )
1565 es_format_Copy( &p_owner->p_packetizer->fmt_in,
1568 es_format_Copy( &p_owner->p_packetizer->fmt_out,
1571 p_owner->p_packetizer->p_module =
1572 module_need( p_owner->p_packetizer,
1573 "packetizer", "$packetizer", false );
1575 if( !p_owner->p_packetizer->p_module )
1577 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1578 vlc_object_release( p_owner->p_packetizer );
1579 p_owner->p_packetizer = NULL;
1584 /* Copy ourself the input replay gain */
1585 if( fmt->i_cat == AUDIO_ES )
1587 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
1589 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
1591 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
1592 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
1594 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
1596 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
1597 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
1603 vlc_mutex_init( &p_owner->lock );
1604 vlc_cond_init( &p_owner->wait_request );
1605 vlc_cond_init( &p_owner->wait_acknowledge );
1607 p_owner->b_fmt_description = false;
1608 p_owner->p_description = NULL;
1610 p_owner->b_paused = false;
1611 p_owner->pause.i_date = VLC_TS_INVALID;
1612 p_owner->pause.i_ignore = 0;
1614 p_owner->b_waiting = false;
1615 p_owner->b_first = true;
1616 p_owner->b_has_data = false;
1618 p_owner->b_flushing = false;
1619 p_owner->b_draining = false;
1622 p_owner->cc.b_supported = false;
1625 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
1626 p_owner->cc.b_supported = true;
1627 if( p_dec->pf_get_cc )
1628 p_owner->cc.b_supported = true;
1631 for( unsigned i = 0; i < 4; i++ )
1633 p_owner->cc.pb_present[i] = false;
1634 p_owner->cc.pp_decoder[i] = NULL;
1636 p_owner->i_ts_delay = 0;
1641 * Destroys a decoder object
1643 * \param p_dec the decoder object
1646 static void DeleteDecoder( decoder_t * p_dec )
1648 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1650 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1651 (char*)&p_dec->fmt_in.i_codec,
1652 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1654 /* Free all packets still in the decoder fifo. */
1655 block_FifoRelease( p_owner->p_fifo );
1658 if( p_owner->p_aout )
1660 /* TODO: REVISIT gap-less audio */
1661 aout_DecFlush( p_owner->p_aout );
1662 aout_DecDelete( p_owner->p_aout );
1663 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1664 if( p_owner->p_input != NULL )
1665 input_SendEventAout( p_owner->p_input );
1667 if( p_owner->p_vout )
1669 /* Hack to make sure all the the pictures are freed by the decoder
1670 * and that the vout is not paused anymore */
1671 vout_Reset( p_owner->p_vout );
1674 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1676 if( p_owner->p_input != NULL )
1677 input_SendEventVout( p_owner->p_input );
1681 if( p_owner->p_sout_input )
1683 sout_InputDelete( p_owner->p_sout_input );
1686 es_format_Clean( &p_owner->fmt );
1688 if( p_dec->fmt_out.i_cat == SPU_ES )
1690 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1693 if( p_owner->p_spu_vout == p_vout )
1694 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1695 vlc_object_release( p_vout );
1699 es_format_Clean( &p_dec->fmt_in );
1700 es_format_Clean( &p_dec->fmt_out );
1701 if( p_dec->p_description )
1702 vlc_meta_Delete( p_dec->p_description );
1703 if( p_owner->p_description )
1704 vlc_meta_Delete( p_owner->p_description );
1706 if( p_owner->p_packetizer )
1708 module_unneed( p_owner->p_packetizer,
1709 p_owner->p_packetizer->p_module );
1710 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1711 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1712 if( p_owner->p_packetizer->p_description )
1713 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1714 vlc_object_release( p_owner->p_packetizer );
1717 vlc_cond_destroy( &p_owner->wait_acknowledge );
1718 vlc_cond_destroy( &p_owner->wait_request );
1719 vlc_mutex_destroy( &p_owner->lock );
1721 vlc_object_release( p_dec );
1727 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
1729 if (codec != VLC_FOURCC('u','n','d','f')) {
1730 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
1731 if (!desc || !*desc)
1732 desc = N_("No description for this codec");
1733 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
1734 dialog_Fatal( p_dec, _("Codec not supported"),
1735 _("VLC could not decode the format \"%4.4s\" (%s)"),
1736 (char*)&codec, desc );
1738 msg_Err( p_dec, "could not identify codec" );
1739 dialog_Fatal( p_dec, _("Unidentified codec"),
1740 _("VLC could not identify the audio or video codec" ) );
1744 /* TODO: pass p_sout through p_resource? -- Courmisch */
1745 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
1746 const es_format_t *fmt, input_clock_t *p_clock,
1747 input_resource_t *p_resource,
1748 sout_instance_t *p_sout )
1750 decoder_t *p_dec = NULL;
1751 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
1754 /* Create the decoder configuration structure */
1755 p_dec = CreateDecoder( p_parent, p_input, fmt,
1756 p_sout != NULL, p_resource, p_sout );
1759 msg_Err( p_parent, "could not create %s", psz_type );
1760 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
1761 _("VLC could not open the %s module."),
1762 vlc_gettext( psz_type ) );
1766 if( !p_dec->p_module )
1768 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
1770 DeleteDecoder( p_dec );
1774 p_dec->p_owner->p_clock = p_clock;
1775 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
1777 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1778 i_priority = VLC_THREAD_PRIORITY_AUDIO;
1780 i_priority = VLC_THREAD_PRIORITY_VIDEO;
1782 /* Spawn the decoder thread */
1783 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
1785 msg_Err( p_dec, "cannot spawn decoder thread" );
1786 module_unneed( p_dec, p_dec->p_module );
1787 DeleteDecoder( p_dec );
1796 * Spawns a new decoder thread from the input thread
1798 * \param p_input the input thread
1799 * \param p_es the es descriptor
1800 * \return the spawned decoder object
1802 decoder_t *input_DecoderNew( input_thread_t *p_input,
1803 es_format_t *fmt, input_clock_t *p_clock,
1804 sout_instance_t *p_sout )
1806 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
1807 p_input->p->p_resource, p_sout );
1811 * Spawn a decoder thread outside of the input thread.
1813 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
1814 input_resource_t *p_resource )
1816 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
1821 * Kills a decoder thread and waits until it's finished
1823 * \param p_input the input thread
1824 * \param p_es the es descriptor
1827 void input_DecoderDelete( decoder_t *p_dec )
1829 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1831 vlc_cancel( p_owner->thread );
1833 /* Make sure we aren't paused/waiting/decoding anymore */
1834 vlc_mutex_lock( &p_owner->lock );
1835 p_owner->b_paused = false;
1836 p_owner->b_waiting = false;
1837 p_owner->b_flushing = true;
1838 vlc_cond_signal( &p_owner->wait_request );
1839 vlc_mutex_unlock( &p_owner->lock );
1841 vlc_join( p_owner->thread, NULL );
1843 module_unneed( p_dec, p_dec->p_module );
1846 if( p_dec->p_owner->cc.b_supported )
1849 for( i = 0; i < 4; i++ )
1850 input_DecoderSetCcState( p_dec, false, i );
1853 /* Delete decoder */
1854 DeleteDecoder( p_dec );
1858 * Put a block_t in the decoder's fifo.
1859 * Thread-safe w.r.t. the decoder. May be a cancellation point.
1861 * \param p_dec the decoder object
1862 * \param p_block the data block
1864 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
1866 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1868 vlc_fifo_Lock( p_owner->p_fifo );
1871 /* FIXME: ideally we would check the time amount of data
1872 * in the FIFO instead of its size. */
1873 /* 400 MiB, i.e. ~ 50mb/s for 60s */
1874 if( vlc_fifo_GetBytes( p_owner->p_fifo ) > 400*1024*1024 )
1876 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
1877 "consumed quickly enough), resetting fifo!" );
1878 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
1882 if( !p_owner->b_waiting )
1883 { /* The FIFO is not consumed when waiting, so pacing would deadlock VLC.
1884 * Locking is not necessary as b_waiting is only read, not written by
1885 * the decoder thread. */
1886 while( vlc_fifo_GetCount( p_owner->p_fifo ) >= 10 )
1887 vlc_fifo_WaitCond( p_owner->p_fifo, &p_owner->wait_acknowledge );
1890 vlc_fifo_QueueUnlocked( p_owner->p_fifo, p_block );
1891 vlc_fifo_Unlock( p_owner->p_fifo );
1894 bool input_DecoderIsEmpty( decoder_t * p_dec )
1896 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1897 assert( !p_owner->b_waiting );
1899 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
1903 vlc_mutex_lock( &p_owner->lock );
1904 /* TODO subtitles support */
1905 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
1906 b_empty = vout_IsEmpty( p_owner->p_vout );
1907 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
1908 b_empty = aout_DecIsEmpty( p_owner->p_aout );
1909 vlc_mutex_unlock( &p_owner->lock );
1915 * Signals that there are no further blocks to decode, and requests that the
1916 * decoder drain all pending buffers. This is used to ensure that all
1917 * intermediate buffers empty and no samples get lost at the end of the stream.
1919 * @note The function does not actually wait for draining. It just signals that
1920 * draining should be performed once the decoder has emptied FIFO.
1922 void input_DecoderDrain( decoder_t *p_dec )
1924 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1926 vlc_fifo_Lock( p_owner->p_fifo );
1927 p_owner->b_draining = true;
1928 vlc_fifo_Signal( p_owner->p_fifo );
1929 vlc_fifo_Unlock( p_owner->p_fifo );
1932 static void DecoderFlush( decoder_t *p_dec )
1934 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1936 vlc_assert_locked( &p_owner->lock );
1938 vlc_fifo_Lock( p_owner->p_fifo );
1939 /* Empty the fifo */
1940 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
1941 p_owner->b_draining = false; /* flush supersedes drain */
1942 vlc_fifo_Unlock( p_owner->p_fifo );
1944 /* Monitor for flush end */
1945 p_owner->b_flushing = true;
1946 vlc_cond_signal( &p_owner->wait_request );
1948 /* Send a special block */
1949 block_t *p_null = DecoderBlockFlushNew();
1952 input_DecoderDecode( p_dec, p_null, false );
1955 while( p_owner->b_flushing )
1956 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
1960 * Requests that the decoder immediately discard all pending buffers.
1961 * This is useful when seeking or when deselecting a stream.
1963 void input_DecoderFlush( decoder_t *p_dec )
1965 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1967 vlc_mutex_lock( &p_owner->lock );
1968 DecoderFlush( p_dec );
1969 vlc_mutex_unlock( &p_owner->lock );
1972 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
1974 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1977 vlc_mutex_lock( &p_owner->lock );
1978 for( i = 0; i < 4; i++ )
1979 pb_present[i] = p_owner->cc.pb_present[i];
1980 vlc_mutex_unlock( &p_owner->lock );
1983 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
1985 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1987 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
1989 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
1990 return VLC_EGENERIC;
1994 static const vlc_fourcc_t fcc[4] = {
1995 VLC_FOURCC('c', 'c', '1', ' '),
1996 VLC_FOURCC('c', 'c', '2', ' '),
1997 VLC_FOURCC('c', 'c', '3', ' '),
1998 VLC_FOURCC('c', 'c', '4', ' '),
2003 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
2004 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
2005 p_dec->p_owner->p_clock, p_owner->p_sout );
2008 msg_Err( p_dec, "could not create decoder" );
2009 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
2010 _("VLC could not open the decoder module.") );
2011 return VLC_EGENERIC;
2013 else if( !p_cc->p_module )
2015 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
2016 input_DecoderDelete(p_cc);
2017 return VLC_EGENERIC;
2019 p_cc->p_owner->p_clock = p_owner->p_clock;
2021 vlc_mutex_lock( &p_owner->lock );
2022 p_owner->cc.pp_decoder[i_channel] = p_cc;
2023 vlc_mutex_unlock( &p_owner->lock );
2029 vlc_mutex_lock( &p_owner->lock );
2030 p_cc = p_owner->cc.pp_decoder[i_channel];
2031 p_owner->cc.pp_decoder[i_channel] = NULL;
2032 vlc_mutex_unlock( &p_owner->lock );
2035 input_DecoderDelete(p_cc);
2040 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
2042 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2045 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
2046 return VLC_EGENERIC;
2048 vlc_mutex_lock( &p_owner->lock );
2049 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
2050 vlc_mutex_unlock( &p_owner->lock );
2051 return VLC_EGENERIC;
2054 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
2056 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2058 vlc_mutex_lock( &p_owner->lock );
2059 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
2060 * while the input is paused (e.g. add sub file), then b_paused is
2061 * (incorrectly) false. */
2062 if( likely(p_owner->b_paused != b_paused) ) {
2063 p_owner->b_paused = b_paused;
2064 p_owner->pause.i_date = i_date;
2065 p_owner->pause.i_ignore = 0;
2066 vlc_cond_signal( &p_owner->wait_request );
2068 /* XXX only audio and video output have to be paused.
2069 * - for sout it is useless
2070 * - for subs, it is done by the vout
2072 if( p_owner->fmt.i_cat == AUDIO_ES )
2074 if( p_owner->p_aout )
2075 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
2077 else if( p_owner->fmt.i_cat == VIDEO_ES )
2079 if( p_owner->p_vout )
2080 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
2083 vlc_mutex_unlock( &p_owner->lock );
2086 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
2088 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2090 vlc_mutex_lock( &p_owner->lock );
2091 p_owner->i_ts_delay = i_delay;
2092 vlc_mutex_unlock( &p_owner->lock );
2095 void input_DecoderStartWait( decoder_t *p_dec )
2097 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2099 assert( !p_owner->b_waiting );
2101 vlc_mutex_lock( &p_owner->lock );
2102 p_owner->b_first = true;
2103 p_owner->b_has_data = false;
2104 p_owner->b_waiting = true;
2105 vlc_cond_signal( &p_owner->wait_request );
2106 vlc_mutex_unlock( &p_owner->lock );
2109 void input_DecoderStopWait( 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 p_owner->b_waiting = false;
2117 vlc_cond_signal( &p_owner->wait_request );
2118 vlc_mutex_unlock( &p_owner->lock );
2121 void input_DecoderWait( decoder_t *p_dec )
2123 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2125 assert( p_owner->b_waiting );
2127 vlc_mutex_lock( &p_owner->lock );
2128 while( !p_owner->b_has_data )
2130 vlc_fifo_Lock( p_owner->p_fifo );
2131 p_owner->b_woken = true;
2132 vlc_fifo_Signal( p_owner->p_fifo );
2133 vlc_fifo_Unlock( p_owner->p_fifo );
2134 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
2136 vlc_mutex_unlock( &p_owner->lock );
2139 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
2141 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2145 vlc_mutex_lock( &p_owner->lock );
2146 if( p_owner->fmt.i_cat == VIDEO_ES )
2148 if( p_owner->b_paused && p_owner->p_vout )
2150 vout_NextPicture( p_owner->p_vout, pi_duration );
2151 p_owner->pause.i_ignore++;
2152 vlc_cond_signal( &p_owner->wait_request );
2157 /* TODO subtitle should not be flushed */
2158 p_owner->b_waiting = false;
2159 DecoderFlush( p_dec );
2161 vlc_mutex_unlock( &p_owner->lock );
2164 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
2166 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2169 vlc_mutex_lock( &p_owner->lock );
2170 b_changed = p_owner->b_fmt_description;
2174 es_format_Copy( p_fmt, &p_owner->fmt );
2179 if( p_owner->p_description )
2181 *pp_meta = vlc_meta_New();
2183 vlc_meta_Merge( *pp_meta, p_owner->p_description );
2186 p_owner->b_fmt_description = false;
2188 vlc_mutex_unlock( &p_owner->lock );
2192 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
2194 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2196 return block_FifoSize( p_owner->p_fifo );
2199 void input_DecoderGetObjects( decoder_t *p_dec,
2200 vout_thread_t **pp_vout, audio_output_t **pp_aout )
2202 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2204 vlc_mutex_lock( &p_owner->lock );
2206 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
2208 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
2209 vlc_mutex_unlock( &p_owner->lock );