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 -- */
121 decoder_t *pp_decoder[4];
128 /* Pictures which are DECODER_BOGUS_VIDEO_DELAY or more in advance probably have
129 * a bogus PTS and won't be displayed */
130 #define DECODER_BOGUS_VIDEO_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
133 #define DECODER_SPU_VOUT_WAIT_DURATION ((int)(0.200*CLOCK_FREQ))
135 static void DecoderUpdateFormatLocked( decoder_t *p_dec )
137 decoder_owner_sys_t *p_owner = p_dec->p_owner;
139 vlc_assert_locked( &p_owner->lock );
141 p_owner->b_fmt_description = true;
143 /* Move p_description */
144 if( p_owner->p_description && p_dec->p_description )
145 vlc_meta_Delete( p_owner->p_description );
146 p_owner->p_description = p_dec->p_description;
147 p_dec->p_description = NULL;
150 static bool DecoderIsFlushing( decoder_t *p_dec )
152 decoder_owner_sys_t *p_owner = p_dec->p_owner;
155 vlc_mutex_lock( &p_owner->lock );
157 b_flushing = p_owner->b_flushing;
159 vlc_mutex_unlock( &p_owner->lock );
164 static void DecoderSignalWait( decoder_t *p_dec )
166 decoder_owner_sys_t *p_owner = p_dec->p_owner;
168 vlc_mutex_lock( &p_owner->lock );
170 if( p_owner->b_waiting )
172 p_owner->b_has_data = true;
173 vlc_cond_signal( &p_owner->wait_acknowledge );
176 vlc_mutex_unlock( &p_owner->lock );
179 static block_t *DecoderBlockFlushNew()
181 block_t *p_null = block_Alloc( 128 );
185 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY |
186 BLOCK_FLAG_CORRUPTED |
187 BLOCK_FLAG_CORE_FLUSH;
188 memset( p_null->p_buffer, 0, p_null->i_buffer );
193 /*****************************************************************************
194 * Buffers allocation callbacks for the decoders
195 *****************************************************************************/
196 static vout_thread_t *aout_request_vout( void *p_private,
197 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recyle )
199 decoder_t *p_dec = p_private;
200 decoder_owner_sys_t *p_owner = p_dec->p_owner;
201 input_thread_t *p_input = p_owner->p_input;
203 p_vout = input_resource_RequestVout( p_owner->p_resource, p_vout, p_fmt, 1,
205 if( p_input != NULL )
206 input_SendEventVout( p_input );
211 static int aout_update_format( decoder_t *p_dec )
213 decoder_owner_sys_t *p_owner = p_dec->p_owner;
216 && !AOUT_FMTS_IDENTICAL(&p_dec->fmt_out.audio, &p_owner->fmt.audio) )
218 audio_output_t *p_aout = p_owner->p_aout;
220 /* Parameters changed, restart the aout */
221 vlc_mutex_lock( &p_owner->lock );
223 aout_DecDelete( p_owner->p_aout );
224 p_owner->p_aout = NULL;
226 vlc_mutex_unlock( &p_owner->lock );
227 input_resource_PutAout( p_owner->p_resource, p_aout );
230 if( p_owner->p_aout == NULL )
232 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
234 audio_sample_format_t format = p_dec->fmt_out.audio;
235 aout_FormatPrepare( &format );
237 const int i_force_dolby = var_InheritInteger( p_dec, "force-dolby-surround" );
239 (format.i_original_channels&AOUT_CHAN_PHYSMASK) ==
240 (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
242 if( i_force_dolby == 1 )
244 format.i_original_channels = format.i_original_channels |
245 AOUT_CHAN_DOLBYSTEREO;
247 else /* i_force_dolby == 2 */
249 format.i_original_channels = format.i_original_channels &
250 ~AOUT_CHAN_DOLBYSTEREO;
254 aout_request_vout_t request_vout = {
255 .pf_request_vout = aout_request_vout,
258 audio_output_t *p_aout;
260 p_aout = input_resource_GetAout( p_owner->p_resource );
263 if( aout_DecNew( p_aout, &format,
264 &p_dec->fmt_out.audio_replay_gain,
267 input_resource_PutAout( p_owner->p_resource, p_aout );
272 vlc_mutex_lock( &p_owner->lock );
274 p_owner->p_aout = p_aout;
276 es_format_Clean( &p_owner->fmt );
277 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
278 aout_FormatPrepare( &p_owner->fmt.audio );
280 DecoderUpdateFormatLocked( p_dec );
282 if( unlikely(p_owner->b_paused) && p_aout != NULL )
283 /* fake pause if needed */
284 aout_DecChangePause( p_aout, true, mdate() );
286 vlc_mutex_unlock( &p_owner->lock );
288 if( p_owner->p_input != NULL )
289 input_SendEventAout( p_owner->p_input );
293 msg_Err( p_dec, "failed to create audio output" );
294 p_dec->b_error = true;
298 p_dec->fmt_out.audio.i_bytes_per_frame =
299 p_owner->fmt.audio.i_bytes_per_frame;
300 p_dec->fmt_out.audio.i_frame_length =
301 p_owner->fmt.audio.i_frame_length;
306 static int vout_update_format( decoder_t *p_dec )
308 decoder_owner_sys_t *p_owner = p_dec->p_owner;
310 if( p_owner->p_vout == NULL
311 || p_dec->fmt_out.video.i_width != p_owner->fmt.video.i_width
312 || p_dec->fmt_out.video.i_height != p_owner->fmt.video.i_height
313 || p_dec->fmt_out.video.i_visible_width != p_owner->fmt.video.i_visible_width
314 || p_dec->fmt_out.video.i_visible_height != p_owner->fmt.video.i_visible_height
315 || p_dec->fmt_out.video.i_x_offset != p_owner->fmt.video.i_x_offset
316 || p_dec->fmt_out.video.i_y_offset != p_owner->fmt.video.i_y_offset
317 || p_dec->fmt_out.i_codec != p_owner->fmt.video.i_chroma
318 || (int64_t)p_dec->fmt_out.video.i_sar_num * p_owner->fmt.video.i_sar_den !=
319 (int64_t)p_dec->fmt_out.video.i_sar_den * p_owner->fmt.video.i_sar_num ||
320 p_dec->fmt_out.video.orientation != p_owner->fmt.video.orientation )
322 vout_thread_t *p_vout;
324 if( !p_dec->fmt_out.video.i_width ||
325 !p_dec->fmt_out.video.i_height )
327 /* Can't create a new vout without display size */
331 video_format_t fmt = p_dec->fmt_out.video;
332 fmt.i_chroma = p_dec->fmt_out.i_codec;
334 if( vlc_fourcc_IsYUV( fmt.i_chroma ) )
336 const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription( fmt.i_chroma );
337 for( unsigned int i = 0; dsc && i < dsc->plane_count; i++ )
339 while( fmt.i_width % dsc->p[i].w.den )
341 while( fmt.i_height % dsc->p[i].h.den )
346 if( !fmt.i_visible_width || !fmt.i_visible_height )
348 if( p_dec->fmt_in.video.i_visible_width &&
349 p_dec->fmt_in.video.i_visible_height )
351 fmt.i_visible_width = p_dec->fmt_in.video.i_visible_width;
352 fmt.i_visible_height = p_dec->fmt_in.video.i_visible_height;
353 fmt.i_x_offset = p_dec->fmt_in.video.i_x_offset;
354 fmt.i_y_offset = p_dec->fmt_in.video.i_y_offset;
358 fmt.i_visible_width = fmt.i_width;
359 fmt.i_visible_height = fmt.i_height;
365 if( fmt.i_visible_height == 1088 &&
366 var_CreateGetBool( p_dec, "hdtv-fix" ) )
368 fmt.i_visible_height = 1080;
369 if( !(fmt.i_sar_num % 136))
371 fmt.i_sar_num *= 135;
372 fmt.i_sar_den *= 136;
374 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
377 if( !fmt.i_sar_num || !fmt.i_sar_den )
383 vlc_ureduce( &fmt.i_sar_num, &fmt.i_sar_den,
384 fmt.i_sar_num, fmt.i_sar_den, 50000 );
386 vlc_mutex_lock( &p_owner->lock );
388 p_vout = p_owner->p_vout;
389 p_owner->p_vout = NULL;
390 vlc_mutex_unlock( &p_owner->lock );
393 switch( p_dec->fmt_in.i_codec )
397 case VLC_CODEC_DIRAC: /* FIXME valid ? */
410 p_vout = input_resource_RequestVout( p_owner->p_resource,
413 p_dec->i_extra_picture_buffers + 1,
415 vlc_mutex_lock( &p_owner->lock );
416 p_owner->p_vout = p_vout;
418 es_format_Clean( &p_owner->fmt );
419 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
420 p_owner->fmt.video.i_chroma = p_dec->fmt_out.i_codec;
422 DecoderUpdateFormatLocked( p_dec );
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 es_format_Clean( &p_owner->fmt );
783 es_format_Copy( &p_owner->fmt, &p_dec->fmt_out );
784 DecoderUpdateFormatLocked( p_dec );
785 vlc_mutex_unlock( &p_owner->lock );
787 p_owner->fmt.i_group = p_dec->fmt_in.i_group;
788 p_owner->fmt.i_id = p_dec->fmt_in.i_id;
789 if( p_dec->fmt_in.psz_language )
791 free( p_owner->fmt.psz_language );
792 p_owner->fmt.psz_language =
793 strdup( p_dec->fmt_in.psz_language );
796 p_owner->p_sout_input =
797 sout_InputNew( p_owner->p_sout, &p_owner->fmt );
799 if( p_owner->p_sout_input == NULL )
801 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
802 (char *)&p_owner->fmt.i_codec );
803 p_dec->b_error = true;
805 block_ChainRelease(p_sout_block);
810 while( p_sout_block )
812 block_t *p_next = p_sout_block->p_next;
814 p_sout_block->p_next = NULL;
816 if( DecoderPlaySout( p_dec, p_sout_block ) == VLC_EGENERIC )
818 msg_Err( p_dec, "cannot continue streaming due to errors" );
820 p_dec->b_error = true;
823 block_ChainRelease( p_next );
827 p_sout_block = p_next;
833 static void DecoderGetCc( decoder_t *p_dec, decoder_t *p_dec_cc )
835 decoder_owner_sys_t *p_owner = p_dec->p_owner;
838 bool b_processed = false;
842 assert( p_dec_cc->pf_get_cc != NULL );
844 /* Do not try retreiving CC if not wanted (sout) or cannot be retreived */
845 if( !p_owner->cc.b_supported )
848 p_cc = p_dec_cc->pf_get_cc( p_dec_cc, pb_present );
852 vlc_mutex_lock( &p_owner->lock );
853 for( i = 0, i_cc_decoder = 0; i < 4; i++ )
855 p_owner->cc.pb_present[i] |= pb_present[i];
856 if( p_owner->cc.pp_decoder[i] )
860 for( i = 0; i < 4; i++ )
862 if( !p_owner->cc.pp_decoder[i] )
865 block_FifoPut( p_owner->cc.pp_decoder[i]->p_owner->p_fifo,
866 (i_cc_decoder > 1) ? block_Duplicate(p_cc) : p_cc);
871 vlc_mutex_unlock( &p_owner->lock );
874 block_Release( p_cc );
877 static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
878 int *pi_played_sum, int *pi_lost_sum )
880 decoder_owner_sys_t *p_owner = p_dec->p_owner;
881 vout_thread_t *p_vout = p_owner->p_vout;
883 if( p_picture->date <= VLC_TS_INVALID )
885 msg_Warn( p_dec, "non-dated video buffer received" );
887 picture_Release( p_picture );
892 vlc_mutex_lock( &p_owner->lock );
894 if( p_owner->b_waiting && !p_owner->b_first )
896 p_owner->b_has_data = true;
897 vlc_cond_signal( &p_owner->wait_acknowledge );
899 bool b_first_after_wait = p_owner->b_waiting && p_owner->b_has_data;
901 bool b_reject = DecoderWaitUnblock( p_dec );
903 if( p_owner->b_waiting )
905 assert( p_owner->b_first );
906 msg_Dbg( p_dec, "Received first picture" );
907 p_owner->b_first = false;
908 p_picture->b_force = true;
911 const bool b_dated = p_picture->date > VLC_TS_INVALID;
912 int i_rate = INPUT_RATE_DEFAULT;
913 DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
914 &i_rate, DECODER_BOGUS_VIDEO_DELAY );
916 vlc_mutex_unlock( &p_owner->lock );
919 if( !p_picture->b_force && p_picture->date <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify video_output/*
924 if( i_rate != p_owner->i_last_rate || b_first_after_wait )
926 /* Be sure to not display old picture after our own */
927 vout_Flush( p_vout, p_picture->date );
928 p_owner->i_last_rate = i_rate;
930 vout_PutPicture( p_vout, p_picture );
935 msg_Warn( p_dec, "early picture skipped" );
937 msg_Warn( p_dec, "non-dated video buffer received" );
940 picture_Release( p_picture );
944 vout_GetResetStatistic( p_vout, &i_tmp_display, &i_tmp_lost );
946 *pi_played_sum += i_tmp_display;
947 *pi_lost_sum += i_tmp_lost;
950 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
952 decoder_owner_sys_t *p_owner = p_dec->p_owner;
958 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
960 vout_thread_t *p_vout = p_owner->p_vout;
961 if( DecoderIsFlushing( p_dec ) )
962 { /* It prevent freezing VLC in case of broken decoder */
963 picture_Release( p_pic );
965 block_Release( p_block );
971 if( p_owner->i_preroll_end > VLC_TS_INVALID && p_pic->date < p_owner->i_preroll_end )
973 picture_Release( p_pic );
977 if( p_owner->i_preroll_end > VLC_TS_INVALID )
979 msg_Dbg( p_dec, "End of video preroll" );
981 vout_Flush( p_vout, VLC_TS_INVALID+1 );
983 p_owner->i_preroll_end = VLC_TS_INVALID;
986 if( p_dec->pf_get_cc &&
987 ( !p_owner->p_packetizer || !p_owner->p_packetizer->pf_get_cc ) )
988 DecoderGetCc( p_dec, p_dec );
990 DecoderPlayVideo( p_dec, p_pic, &i_displayed, &i_lost );
993 /* Update ugly stat */
994 input_thread_t *p_input = p_owner->p_input;
996 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_displayed > 0) )
998 vlc_mutex_lock( &p_input->p->counters.counters_lock );
999 stats_Update( p_input->p->counters.p_decoded_video, i_decoded, NULL );
1000 stats_Update( p_input->p->counters.p_lost_pictures, i_lost , NULL);
1001 stats_Update( p_input->p->counters.p_displayed_pictures,
1003 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1007 /* This function process a video block
1009 static void DecoderProcessVideo( decoder_t *p_dec, block_t *p_block, bool b_flush )
1011 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1013 if( p_owner->p_packetizer )
1015 block_t *p_packetized_block;
1016 decoder_t *p_packetizer = p_owner->p_packetizer;
1018 while( (p_packetized_block =
1019 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1021 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1023 es_format_Clean( &p_dec->fmt_in );
1024 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1027 /* If the packetizer provides aspect ratio information, pass it
1028 * to the decoder as a hint if the decoder itself can't provide
1029 * it. Copy it regardless of the current value of the decoder input
1030 * format aspect ratio, to properly propagate changes in aspect
1032 if( p_packetizer->fmt_out.video.i_sar_num > 0 &&
1033 p_packetizer->fmt_out.video.i_sar_den > 0)
1035 p_dec->fmt_in.video.i_sar_num =
1036 p_packetizer->fmt_out.video.i_sar_num;
1037 p_dec->fmt_in.video.i_sar_den=
1038 p_packetizer->fmt_out.video.i_sar_den;
1041 if( p_packetizer->pf_get_cc )
1042 DecoderGetCc( p_dec, p_packetizer );
1044 while( p_packetized_block )
1046 block_t *p_next = p_packetized_block->p_next;
1047 p_packetized_block->p_next = NULL;
1049 DecoderDecodeVideo( p_dec, p_packetized_block );
1051 p_packetized_block = p_next;
1054 /* The packetizer does not output a block that tell the decoder to flush
1058 block_t *p_null = DecoderBlockFlushNew();
1060 DecoderDecodeVideo( p_dec, p_null );
1065 DecoderDecodeVideo( p_dec, p_block );
1068 if( b_flush && p_owner->p_vout )
1069 vout_Flush( p_owner->p_vout, VLC_TS_INVALID+1 );
1072 static void DecoderPlayAudio( decoder_t *p_dec, block_t *p_audio,
1073 int *pi_played_sum, int *pi_lost_sum )
1075 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1076 audio_output_t *p_aout = p_owner->p_aout;
1079 if( p_audio && p_audio->i_pts <= VLC_TS_INVALID ) // FIXME --VLC_TS_INVALID verify audio_output/*
1081 msg_Warn( p_dec, "non-dated audio buffer received" );
1083 block_Release( p_audio );
1088 vlc_mutex_lock( &p_owner->lock );
1090 if( p_audio && p_owner->b_waiting )
1092 p_owner->b_has_data = true;
1093 vlc_cond_signal( &p_owner->wait_acknowledge );
1100 bool b_reject = DecoderWaitUnblock( p_dec );
1102 b_paused = p_owner->b_paused;
1108 int i_rate = INPUT_RATE_DEFAULT;
1110 DecoderFixTs( p_dec, &p_audio->i_pts, NULL, &p_audio->i_length,
1111 &i_rate, AOUT_MAX_ADVANCE_TIME );
1113 if( p_audio->i_pts <= VLC_TS_INVALID
1114 || i_rate < INPUT_RATE_DEFAULT/AOUT_MAX_INPUT_RATE
1115 || i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
1118 DecoderWaitDate( p_dec, &b_reject,
1119 p_audio->i_pts - AOUT_MAX_PREPARE_TIME );
1121 if( unlikely(p_owner->b_paused != b_paused) )
1122 continue; /* race with input thread? retry... */
1123 if( p_aout == NULL )
1128 assert( !p_owner->b_paused );
1129 if( !aout_DecPlay( p_aout, p_audio, i_rate ) )
1130 *pi_played_sum += 1;
1131 *pi_lost_sum += aout_DecGetResetLost( p_aout );
1135 msg_Dbg( p_dec, "discarded audio buffer" );
1137 block_Release( p_audio );
1142 vlc_mutex_unlock( &p_owner->lock );
1145 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
1147 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1148 block_t *p_aout_buf;
1154 /* Play a NULL block to output buffered frames */
1155 DecoderPlayAudio( p_dec, NULL, &i_played, &i_lost );
1157 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
1159 if( DecoderIsFlushing( p_dec ) )
1161 /* It prevent freezing VLC in case of broken decoder */
1162 block_Release( p_aout_buf );
1164 block_Release( p_block );
1169 if( p_owner->i_preroll_end > VLC_TS_INVALID &&
1170 p_aout_buf->i_pts < p_owner->i_preroll_end )
1172 block_Release( p_aout_buf );
1176 if( p_owner->i_preroll_end > VLC_TS_INVALID )
1178 msg_Dbg( p_dec, "End of audio preroll" );
1179 if( p_owner->p_aout )
1180 aout_DecFlush( p_owner->p_aout );
1182 p_owner->i_preroll_end = VLC_TS_INVALID;
1185 DecoderPlayAudio( p_dec, p_aout_buf, &i_played, &i_lost );
1188 /* Update ugly stat */
1189 input_thread_t *p_input = p_owner->p_input;
1191 if( p_input != NULL && (i_decoded > 0 || i_lost > 0 || i_played > 0) )
1193 vlc_mutex_lock( &p_input->p->counters.counters_lock);
1194 stats_Update( p_input->p->counters.p_lost_abuffers, i_lost, NULL );
1195 stats_Update( p_input->p->counters.p_played_abuffers, i_played, NULL );
1196 stats_Update( p_input->p->counters.p_decoded_audio, i_decoded, NULL );
1197 vlc_mutex_unlock( &p_input->p->counters.counters_lock);
1201 /* This function process a audio block
1203 static void DecoderProcessAudio( decoder_t *p_dec, block_t *p_block, bool b_flush )
1205 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1207 if( p_owner->p_packetizer )
1209 block_t *p_packetized_block;
1210 decoder_t *p_packetizer = p_owner->p_packetizer;
1212 while( (p_packetized_block =
1213 p_packetizer->pf_packetize( p_packetizer, p_block ? &p_block : NULL )) )
1215 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
1217 es_format_Clean( &p_dec->fmt_in );
1218 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
1221 while( p_packetized_block )
1223 block_t *p_next = p_packetized_block->p_next;
1224 p_packetized_block->p_next = NULL;
1226 DecoderDecodeAudio( p_dec, p_packetized_block );
1228 p_packetized_block = p_next;
1231 /* The packetizer does not output a block that tell the decoder to flush
1235 block_t *p_null = DecoderBlockFlushNew();
1237 DecoderDecodeAudio( p_dec, p_null );
1242 DecoderDecodeAudio( p_dec, p_block );
1245 if( b_flush && p_owner->p_aout )
1246 aout_DecFlush( p_owner->p_aout );
1249 static void DecoderPlaySpu( decoder_t *p_dec, subpicture_t *p_subpic )
1251 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1252 vout_thread_t *p_vout = p_owner->p_spu_vout;
1255 if( p_subpic->i_start <= VLC_TS_INVALID )
1257 msg_Warn( p_dec, "non-dated spu buffer received" );
1258 subpicture_Delete( p_subpic );
1263 vlc_mutex_lock( &p_owner->lock );
1265 if( p_owner->b_waiting )
1267 p_owner->b_has_data = true;
1268 vlc_cond_signal( &p_owner->wait_acknowledge );
1271 bool b_reject = DecoderWaitUnblock( p_dec );
1273 DecoderFixTs( p_dec, &p_subpic->i_start, &p_subpic->i_stop, NULL,
1276 if( p_subpic->i_start <= VLC_TS_INVALID )
1279 DecoderWaitDate( p_dec, &b_reject,
1280 p_subpic->i_start - SPU_MAX_PREPARE_TIME );
1281 vlc_mutex_unlock( &p_owner->lock );
1284 vout_PutSubpicture( p_vout, p_subpic );
1286 subpicture_Delete( p_subpic );
1289 /* This function process a subtitle block
1291 static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush )
1293 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1295 input_thread_t *p_input = p_owner->p_input;
1296 vout_thread_t *p_vout;
1297 subpicture_t *p_spu;
1299 while( (p_spu = p_dec->pf_decode_sub( p_dec, p_block ? &p_block : NULL ) ) )
1301 if( p_input != NULL )
1303 vlc_mutex_lock( &p_input->p->counters.counters_lock );
1304 stats_Update( p_input->p->counters.p_decoded_sub, 1, NULL );
1305 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
1308 p_vout = input_resource_HoldVout( p_owner->p_resource );
1309 if( p_vout && p_owner->p_spu_vout == p_vout )
1311 /* Preroll does not work very well with subtitle */
1312 if( p_spu->i_start > VLC_TS_INVALID &&
1313 p_spu->i_start < p_owner->i_preroll_end &&
1314 ( p_spu->i_stop <= VLC_TS_INVALID || p_spu->i_stop < p_owner->i_preroll_end ) )
1316 subpicture_Delete( p_spu );
1320 DecoderPlaySpu( p_dec, p_spu );
1325 subpicture_Delete( p_spu );
1328 vlc_object_release( p_vout );
1331 if( b_flush && p_owner->p_spu_vout )
1333 p_vout = input_resource_HoldVout( p_owner->p_resource );
1335 if( p_vout && p_owner->p_spu_vout == p_vout )
1336 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1339 vlc_object_release( p_vout );
1344 static void DecoderProcessOnFlush( decoder_t *p_dec )
1346 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1348 vlc_mutex_lock( &p_owner->lock );
1350 if( p_owner->b_flushing )
1352 p_owner->b_flushing = false;
1353 vlc_cond_signal( &p_owner->wait_acknowledge );
1355 vlc_mutex_unlock( &p_owner->lock );
1361 * \param p_dec the decoder object
1362 * \param p_block the block to decode
1363 * \return VLC_SUCCESS or an error code
1365 static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
1367 decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
1368 const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
1370 if( p_dec->b_error )
1373 block_Release( p_block );
1377 if( p_block && p_block->i_buffer <= 0 )
1379 assert( !b_flush_request );
1380 block_Release( p_block );
1385 if( p_owner->b_packetizer )
1388 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1390 DecoderProcessSout( p_dec, p_block );
1395 bool b_flush = false;
1399 const bool b_flushing = p_owner->i_preroll_end == INT64_MAX;
1400 DecoderUpdatePreroll( &p_owner->i_preroll_end, p_block );
1402 b_flush = !b_flushing && b_flush_request;
1404 p_block->i_flags &= ~BLOCK_FLAG_CORE_PRIVATE_MASK;
1407 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1409 DecoderProcessAudio( p_dec, p_block, b_flush );
1411 else if( p_dec->fmt_out.i_cat == VIDEO_ES )
1413 DecoderProcessVideo( p_dec, p_block, b_flush );
1415 else if( p_dec->fmt_out.i_cat == SPU_ES )
1417 DecoderProcessSpu( p_dec, p_block, b_flush );
1421 msg_Err( p_dec, "unknown ES format" );
1422 p_dec->b_error = true;
1428 if( b_flush_request )
1429 DecoderProcessOnFlush( p_dec );
1434 * The decoding main loop
1436 * \param p_dec the decoder
1438 static void *DecoderThread( void *p_data )
1440 decoder_t *p_dec = (decoder_t *)p_data;
1441 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1443 /* The decoder's main loop */
1448 vlc_fifo_Lock( p_owner->p_fifo );
1449 vlc_fifo_CleanupPush( p_owner->p_fifo );
1451 while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
1453 if( p_owner->b_woken )
1455 vlc_fifo_Wait( p_owner->p_fifo );
1456 /* Make sure there is no cancellation point other than this one^^.
1457 * If you need one, be sure to push cleanup of p_block. */
1460 p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
1461 if( p_block != NULL )
1462 vlc_cond_signal( &p_owner->wait_acknowledge );
1464 p_owner->b_woken = false;
1467 if( p_block == NULL || p_block->i_flags & BLOCK_FLAG_CORE_EOS )
1468 DecoderSignalWait( p_dec );
1472 int canc = vlc_savecancel();
1474 if( p_block->i_flags & BLOCK_FLAG_CORE_EOS )
1476 /* calling DecoderProcess() with NULL block will make
1477 * decoders/packetizers flush their buffers */
1478 block_Release( p_block );
1482 DecoderProcess( p_dec, p_block );
1484 vlc_restorecancel( canc );
1491 * Create a decoder object
1493 * \param p_input the input thread
1494 * \param p_es the es descriptor
1495 * \param b_packetizer instead of a decoder
1496 * \return the decoder object
1498 static decoder_t * CreateDecoder( vlc_object_t *p_parent,
1499 input_thread_t *p_input,
1500 const es_format_t *fmt, bool b_packetizer,
1501 input_resource_t *p_resource,
1502 sout_instance_t *p_sout )
1505 decoder_owner_sys_t *p_owner;
1506 es_format_t null_es_format;
1508 p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
1512 p_dec->pf_decode_audio = NULL;
1513 p_dec->pf_decode_video = NULL;
1514 p_dec->pf_decode_sub = NULL;
1515 p_dec->pf_get_cc = NULL;
1516 p_dec->pf_packetize = NULL;
1518 /* Initialize the decoder */
1519 p_dec->p_module = NULL;
1521 memset( &null_es_format, 0, sizeof(es_format_t) );
1522 es_format_Copy( &p_dec->fmt_in, fmt );
1523 es_format_Copy( &p_dec->fmt_out, &null_es_format );
1525 p_dec->p_description = NULL;
1527 /* Allocate our private structure for the decoder */
1528 p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
1529 if( unlikely(p_owner == NULL) )
1531 vlc_object_release( p_dec );
1534 p_owner->i_preroll_end = VLC_TS_INVALID;
1535 p_owner->i_last_rate = INPUT_RATE_DEFAULT;
1536 p_owner->p_input = p_input;
1537 p_owner->p_resource = p_resource;
1538 p_owner->p_aout = NULL;
1539 p_owner->p_vout = NULL;
1540 p_owner->p_spu_vout = NULL;
1541 p_owner->i_spu_channel = 0;
1542 p_owner->i_spu_order = 0;
1543 p_owner->p_sout = p_sout;
1544 p_owner->p_sout_input = NULL;
1545 p_owner->p_packetizer = NULL;
1546 p_owner->b_packetizer = b_packetizer;
1547 es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
1550 p_owner->b_woken = false;
1551 p_owner->p_fifo = block_FifoNew();
1552 if( unlikely(p_owner->p_fifo == NULL) )
1555 vlc_object_release( p_dec );
1559 /* Set buffers allocation callbacks for the decoders */
1560 p_dec->pf_aout_format_update = aout_update_format;
1561 p_dec->pf_vout_format_update = vout_update_format;
1562 p_dec->pf_vout_buffer_new = vout_new_buffer;
1563 p_dec->pf_spu_buffer_new = spu_new_buffer;
1565 p_dec->pf_get_attachments = DecoderGetInputAttachments;
1566 p_dec->pf_get_display_date = DecoderGetDisplayDate;
1567 p_dec->pf_get_display_rate = DecoderGetDisplayRate;
1569 /* Find a suitable decoder/packetizer module */
1571 p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
1573 p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
1575 /* Check if decoder requires already packetized data */
1576 if( !b_packetizer &&
1577 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
1579 p_owner->p_packetizer =
1580 vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
1581 if( p_owner->p_packetizer )
1583 es_format_Copy( &p_owner->p_packetizer->fmt_in,
1586 es_format_Copy( &p_owner->p_packetizer->fmt_out,
1589 p_owner->p_packetizer->p_module =
1590 module_need( p_owner->p_packetizer,
1591 "packetizer", "$packetizer", false );
1593 if( !p_owner->p_packetizer->p_module )
1595 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1596 vlc_object_release( p_owner->p_packetizer );
1597 p_owner->p_packetizer = NULL;
1602 /* Copy ourself the input replay gain */
1603 if( fmt->i_cat == AUDIO_ES )
1605 for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
1607 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
1609 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
1610 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
1612 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
1614 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
1615 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
1621 vlc_mutex_init( &p_owner->lock );
1622 vlc_cond_init( &p_owner->wait_request );
1623 vlc_cond_init( &p_owner->wait_acknowledge );
1625 p_owner->b_fmt_description = false;
1626 p_owner->p_description = NULL;
1628 p_owner->b_paused = false;
1629 p_owner->pause.i_date = VLC_TS_INVALID;
1630 p_owner->pause.i_ignore = 0;
1632 p_owner->b_waiting = false;
1633 p_owner->b_first = true;
1634 p_owner->b_has_data = false;
1636 p_owner->b_flushing = false;
1639 p_owner->cc.b_supported = false;
1642 if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
1643 p_owner->cc.b_supported = true;
1644 if( p_dec->pf_get_cc )
1645 p_owner->cc.b_supported = true;
1648 for( unsigned i = 0; i < 4; i++ )
1650 p_owner->cc.pb_present[i] = false;
1651 p_owner->cc.pp_decoder[i] = NULL;
1653 p_owner->i_ts_delay = 0;
1658 * Destroys a decoder object
1660 * \param p_dec the decoder object
1663 static void DeleteDecoder( decoder_t * p_dec )
1665 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1667 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
1668 (char*)&p_dec->fmt_in.i_codec,
1669 (unsigned)block_FifoCount( p_owner->p_fifo ) );
1671 /* Free all packets still in the decoder fifo. */
1672 block_FifoRelease( p_owner->p_fifo );
1675 if( p_owner->p_aout )
1677 /* TODO: REVISIT gap-less audio */
1678 aout_DecFlush( p_owner->p_aout );
1679 aout_DecDelete( p_owner->p_aout );
1680 input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
1681 if( p_owner->p_input != NULL )
1682 input_SendEventAout( p_owner->p_input );
1684 if( p_owner->p_vout )
1686 /* Hack to make sure all the the pictures are freed by the decoder
1687 * and that the vout is not paused anymore */
1688 vout_Reset( p_owner->p_vout );
1691 input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
1693 if( p_owner->p_input != NULL )
1694 input_SendEventVout( p_owner->p_input );
1698 if( p_owner->p_sout_input )
1700 sout_InputDelete( p_owner->p_sout_input );
1703 es_format_Clean( &p_owner->fmt );
1705 if( p_dec->fmt_out.i_cat == SPU_ES )
1707 vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
1710 if( p_owner->p_spu_vout == p_vout )
1711 vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
1712 vlc_object_release( p_vout );
1716 es_format_Clean( &p_dec->fmt_in );
1717 es_format_Clean( &p_dec->fmt_out );
1718 if( p_dec->p_description )
1719 vlc_meta_Delete( p_dec->p_description );
1720 if( p_owner->p_description )
1721 vlc_meta_Delete( p_owner->p_description );
1723 if( p_owner->p_packetizer )
1725 module_unneed( p_owner->p_packetizer,
1726 p_owner->p_packetizer->p_module );
1727 es_format_Clean( &p_owner->p_packetizer->fmt_in );
1728 es_format_Clean( &p_owner->p_packetizer->fmt_out );
1729 if( p_owner->p_packetizer->p_description )
1730 vlc_meta_Delete( p_owner->p_packetizer->p_description );
1731 vlc_object_release( p_owner->p_packetizer );
1734 vlc_cond_destroy( &p_owner->wait_acknowledge );
1735 vlc_cond_destroy( &p_owner->wait_request );
1736 vlc_mutex_destroy( &p_owner->lock );
1738 vlc_object_release( p_dec );
1744 static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
1746 if (codec != VLC_FOURCC('u','n','d','f')) {
1747 const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
1748 if (!desc || !*desc)
1749 desc = N_("No description for this codec");
1750 msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
1751 dialog_Fatal( p_dec, _("Codec not supported"),
1752 _("VLC could not decode the format \"%4.4s\" (%s)"),
1753 (char*)&codec, desc );
1755 msg_Err( p_dec, "could not identify codec" );
1756 dialog_Fatal( p_dec, _("Unidentified codec"),
1757 _("VLC could not identify the audio or video codec" ) );
1761 /* TODO: pass p_sout through p_resource? -- Courmisch */
1762 static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
1763 const es_format_t *fmt, input_clock_t *p_clock,
1764 input_resource_t *p_resource,
1765 sout_instance_t *p_sout )
1767 decoder_t *p_dec = NULL;
1768 const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
1771 /* Create the decoder configuration structure */
1772 p_dec = CreateDecoder( p_parent, p_input, fmt,
1773 p_sout != NULL, p_resource, p_sout );
1776 msg_Err( p_parent, "could not create %s", psz_type );
1777 dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
1778 _("VLC could not open the %s module."),
1779 vlc_gettext( psz_type ) );
1783 if( !p_dec->p_module )
1785 DecoderUnsupportedCodec( p_dec, fmt->i_codec );
1787 DeleteDecoder( p_dec );
1791 p_dec->p_owner->p_clock = p_clock;
1792 assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
1794 if( p_dec->fmt_out.i_cat == AUDIO_ES )
1795 i_priority = VLC_THREAD_PRIORITY_AUDIO;
1797 i_priority = VLC_THREAD_PRIORITY_VIDEO;
1799 /* Spawn the decoder thread */
1800 if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
1802 msg_Err( p_dec, "cannot spawn decoder thread" );
1803 module_unneed( p_dec, p_dec->p_module );
1804 DeleteDecoder( p_dec );
1813 * Spawns a new decoder thread from the input thread
1815 * \param p_input the input thread
1816 * \param p_es the es descriptor
1817 * \return the spawned decoder object
1819 decoder_t *input_DecoderNew( input_thread_t *p_input,
1820 es_format_t *fmt, input_clock_t *p_clock,
1821 sout_instance_t *p_sout )
1823 return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
1824 p_input->p->p_resource, p_sout );
1828 * Spawn a decoder thread outside of the input thread.
1830 decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
1831 input_resource_t *p_resource )
1833 return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
1838 * Kills a decoder thread and waits until it's finished
1840 * \param p_input the input thread
1841 * \param p_es the es descriptor
1844 void input_DecoderDelete( decoder_t *p_dec )
1846 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1848 vlc_cancel( p_owner->thread );
1850 /* Make sure we aren't paused/waiting/decoding anymore */
1851 vlc_mutex_lock( &p_owner->lock );
1852 p_owner->b_paused = false;
1853 p_owner->b_waiting = false;
1854 p_owner->b_flushing = true;
1855 vlc_cond_signal( &p_owner->wait_request );
1856 vlc_mutex_unlock( &p_owner->lock );
1858 vlc_join( p_owner->thread, NULL );
1860 module_unneed( p_dec, p_dec->p_module );
1863 if( p_dec->p_owner->cc.b_supported )
1866 for( i = 0; i < 4; i++ )
1867 input_DecoderSetCcState( p_dec, false, i );
1870 /* Delete decoder */
1871 DeleteDecoder( p_dec );
1875 * Put a block_t in the decoder's fifo.
1876 * Thread-safe w.r.t. the decoder. May be a cancellation point.
1878 * \param p_dec the decoder object
1879 * \param p_block the data block
1881 void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
1883 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1885 vlc_fifo_Lock( p_owner->p_fifo );
1888 /* FIXME: ideally we would check the time amount of data
1889 * in the FIFO instead of its size. */
1890 /* 400 MiB, i.e. ~ 50mb/s for 60s */
1891 if( vlc_fifo_GetBytes( p_owner->p_fifo ) > 400*1024*1024 )
1893 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
1894 "consumed quickly enough), resetting fifo!" );
1895 block_ChainRelease( vlc_fifo_DequeueAllUnlocked( p_owner->p_fifo ) );
1899 if( !p_owner->b_waiting )
1900 { /* The FIFO is not consumed when waiting, so pacing would deadlock VLC.
1901 * Locking is not necessary as b_waiting is only read, not written by
1902 * the decoder thread. */
1903 while( vlc_fifo_GetCount( p_owner->p_fifo ) >= 10 )
1904 vlc_fifo_WaitCond( p_owner->p_fifo, &p_owner->wait_acknowledge );
1907 vlc_fifo_QueueUnlocked( p_owner->p_fifo, p_block );
1908 vlc_fifo_Unlock( p_owner->p_fifo );
1911 bool input_DecoderIsEmpty( decoder_t * p_dec )
1913 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1914 assert( !p_owner->b_waiting );
1916 bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
1920 vlc_mutex_lock( &p_owner->lock );
1921 /* TODO subtitles support */
1922 if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
1923 b_empty = vout_IsEmpty( p_owner->p_vout );
1924 else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
1925 b_empty = aout_DecIsEmpty( p_owner->p_aout );
1926 vlc_mutex_unlock( &p_owner->lock );
1931 static void DecoderFlush( decoder_t *p_dec )
1933 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1935 vlc_assert_locked( &p_owner->lock );
1937 /* Empty the fifo */
1938 block_FifoEmpty( p_owner->p_fifo );
1940 /* Monitor for flush end */
1941 p_owner->b_flushing = true;
1942 vlc_cond_signal( &p_owner->wait_request );
1944 /* Send a special block */
1945 block_t *p_null = DecoderBlockFlushNew();
1948 input_DecoderDecode( p_dec, p_null, false );
1951 while( p_owner->b_flushing )
1952 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
1956 * Requests that the decoder immediately discard all pending buffers.
1957 * This is useful at end of stream, when seeking or when deselecting a stream.
1959 void input_DecoderFlush( decoder_t *p_dec )
1961 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1963 vlc_mutex_lock( &p_owner->lock );
1964 DecoderFlush( p_dec );
1965 vlc_mutex_unlock( &p_owner->lock );
1968 void input_DecoderIsCcPresent( decoder_t *p_dec, bool pb_present[4] )
1970 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1973 vlc_mutex_lock( &p_owner->lock );
1974 for( i = 0; i < 4; i++ )
1975 pb_present[i] = p_owner->cc.pb_present[i];
1976 vlc_mutex_unlock( &p_owner->lock );
1979 int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
1981 decoder_owner_sys_t *p_owner = p_dec->p_owner;
1983 //msg_Warn( p_dec, "input_DecoderSetCcState: %d @%d", b_decode, i_channel );
1985 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
1986 return VLC_EGENERIC;
1990 static const vlc_fourcc_t fcc[4] = {
1991 VLC_FOURCC('c', 'c', '1', ' '),
1992 VLC_FOURCC('c', 'c', '2', ' '),
1993 VLC_FOURCC('c', 'c', '3', ' '),
1994 VLC_FOURCC('c', 'c', '4', ' '),
1999 es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
2000 p_cc = input_DecoderNew( p_owner->p_input, &fmt,
2001 p_dec->p_owner->p_clock, p_owner->p_sout );
2004 msg_Err( p_dec, "could not create decoder" );
2005 dialog_Fatal( p_dec, _("Streaming / Transcoding failed"), "%s",
2006 _("VLC could not open the decoder module.") );
2007 return VLC_EGENERIC;
2009 else if( !p_cc->p_module )
2011 DecoderUnsupportedCodec( p_dec, fcc[i_channel] );
2012 input_DecoderDelete(p_cc);
2013 return VLC_EGENERIC;
2015 p_cc->p_owner->p_clock = p_owner->p_clock;
2017 vlc_mutex_lock( &p_owner->lock );
2018 p_owner->cc.pp_decoder[i_channel] = p_cc;
2019 vlc_mutex_unlock( &p_owner->lock );
2025 vlc_mutex_lock( &p_owner->lock );
2026 p_cc = p_owner->cc.pp_decoder[i_channel];
2027 p_owner->cc.pp_decoder[i_channel] = NULL;
2028 vlc_mutex_unlock( &p_owner->lock );
2031 input_DecoderDelete(p_cc);
2036 int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
2038 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2041 if( i_channel < 0 || i_channel >= 4 || !p_owner->cc.pb_present[i_channel] )
2042 return VLC_EGENERIC;
2044 vlc_mutex_lock( &p_owner->lock );
2045 *pb_decode = p_owner->cc.pp_decoder[i_channel] != NULL;
2046 vlc_mutex_unlock( &p_owner->lock );
2047 return VLC_EGENERIC;
2050 void input_DecoderChangePause( decoder_t *p_dec, bool b_paused, mtime_t i_date )
2052 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2054 vlc_mutex_lock( &p_owner->lock );
2055 /* Normally, p_owner->b_paused != b_paused here. But if a track is added
2056 * while the input is paused (e.g. add sub file), then b_paused is
2057 * (incorrectly) false. */
2058 if( likely(p_owner->b_paused != b_paused) ) {
2059 p_owner->b_paused = b_paused;
2060 p_owner->pause.i_date = i_date;
2061 p_owner->pause.i_ignore = 0;
2062 vlc_cond_signal( &p_owner->wait_request );
2064 /* XXX only audio and video output have to be paused.
2065 * - for sout it is useless
2066 * - for subs, it is done by the vout
2068 if( p_owner->fmt.i_cat == AUDIO_ES )
2070 if( p_owner->p_aout )
2071 aout_DecChangePause( p_owner->p_aout, b_paused, i_date );
2073 else if( p_owner->fmt.i_cat == VIDEO_ES )
2075 if( p_owner->p_vout )
2076 vout_ChangePause( p_owner->p_vout, b_paused, i_date );
2079 vlc_mutex_unlock( &p_owner->lock );
2082 void input_DecoderChangeDelay( decoder_t *p_dec, mtime_t i_delay )
2084 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2086 vlc_mutex_lock( &p_owner->lock );
2087 p_owner->i_ts_delay = i_delay;
2088 vlc_mutex_unlock( &p_owner->lock );
2091 void input_DecoderStartWait( decoder_t *p_dec )
2093 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2095 assert( !p_owner->b_waiting );
2097 vlc_mutex_lock( &p_owner->lock );
2098 p_owner->b_first = true;
2099 p_owner->b_has_data = false;
2100 p_owner->b_waiting = true;
2101 vlc_cond_signal( &p_owner->wait_request );
2102 vlc_mutex_unlock( &p_owner->lock );
2105 void input_DecoderStopWait( decoder_t *p_dec )
2107 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2109 assert( p_owner->b_waiting );
2111 vlc_mutex_lock( &p_owner->lock );
2112 p_owner->b_waiting = false;
2113 vlc_cond_signal( &p_owner->wait_request );
2114 vlc_mutex_unlock( &p_owner->lock );
2117 void input_DecoderWait( decoder_t *p_dec )
2119 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2121 assert( p_owner->b_waiting );
2123 vlc_mutex_lock( &p_owner->lock );
2124 while( !p_owner->b_has_data )
2126 vlc_fifo_Lock( p_owner->p_fifo );
2127 p_owner->b_woken = true;
2128 vlc_fifo_Signal( p_owner->p_fifo );
2129 vlc_fifo_Unlock( p_owner->p_fifo );
2130 vlc_cond_wait( &p_owner->wait_acknowledge, &p_owner->lock );
2132 vlc_mutex_unlock( &p_owner->lock );
2135 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
2137 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2141 vlc_mutex_lock( &p_owner->lock );
2142 if( p_owner->fmt.i_cat == VIDEO_ES )
2144 if( p_owner->b_paused && p_owner->p_vout )
2146 vout_NextPicture( p_owner->p_vout, pi_duration );
2147 p_owner->pause.i_ignore++;
2148 vlc_cond_signal( &p_owner->wait_request );
2153 /* TODO subtitle should not be flushed */
2154 p_owner->b_waiting = false;
2155 DecoderFlush( p_dec );
2157 vlc_mutex_unlock( &p_owner->lock );
2160 bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
2162 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2165 vlc_mutex_lock( &p_owner->lock );
2166 b_changed = p_owner->b_fmt_description;
2170 es_format_Copy( p_fmt, &p_owner->fmt );
2175 if( p_owner->p_description )
2177 *pp_meta = vlc_meta_New();
2179 vlc_meta_Merge( *pp_meta, p_owner->p_description );
2182 p_owner->b_fmt_description = false;
2184 vlc_mutex_unlock( &p_owner->lock );
2188 size_t input_DecoderGetFifoSize( decoder_t *p_dec )
2190 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2192 return block_FifoSize( p_owner->p_fifo );
2195 void input_DecoderGetObjects( decoder_t *p_dec,
2196 vout_thread_t **pp_vout, audio_output_t **pp_aout )
2198 decoder_owner_sys_t *p_owner = p_dec->p_owner;
2200 vlc_mutex_lock( &p_owner->lock );
2202 *pp_vout = p_owner->p_vout ? vlc_object_hold( p_owner->p_vout ) : NULL;
2204 *pp_aout = p_owner->p_aout ? vlc_object_hold( p_owner->p_aout ) : NULL;
2205 vlc_mutex_unlock( &p_owner->lock );