1 /*****************************************************************************
2 * input.c : internal management of input streams for the audio output
3 *****************************************************************************
4 * Copyright (C) 2002-2007 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
39 #include <vlc_input.h>
40 #include <vlc_vout.h> /* for vout_Request */
48 #include "aout_internal.h"
50 #define AOUT_ASSERT_MIXER_LOCKED vlc_assert_locked( &p_aout->mixer_lock )
51 #define AOUT_ASSERT_INPUT_LOCKED vlc_assert_locked( &p_input->lock )
53 static void inputFailure( aout_instance_t *, aout_input_t *, const char * );
54 static void inputDrop( aout_input_t *, aout_buffer_t * );
55 static void inputResamplingStop( aout_input_t *p_input );
57 static int VisualizationCallback( vlc_object_t *, char const *,
58 vlc_value_t, vlc_value_t, void * );
59 static int EqualizerCallback( vlc_object_t *, char const *,
60 vlc_value_t, vlc_value_t, void * );
61 static int ReplayGainCallback( vlc_object_t *, char const *,
62 vlc_value_t, vlc_value_t, void * );
63 static void ReplayGainSelect( aout_instance_t *, aout_input_t * );
65 static vout_thread_t *RequestVout( void *,
66 vout_thread_t *, video_format_t *, bool );
67 static vout_thread_t *RequestVoutFromFilter( void *,
68 vout_thread_t *, video_format_t *, bool );
70 /*****************************************************************************
71 * aout_InputNew : allocate a new input and rework the filter pipeline
72 *****************************************************************************/
73 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t *p_request_vout )
75 audio_sample_format_t chain_input_format;
76 audio_sample_format_t chain_output_format;
77 vlc_value_t val, text;
78 char *psz_filters, *psz_visual, *psz_scaletempo;
81 aout_FormatPrint( p_aout, "input", &p_input->input );
83 p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
86 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
87 p_input->p_first_byte_to_mix = NULL;
92 p_input->request_vout = *p_request_vout;
96 p_input->request_vout.pf_request_vout = RequestVout;
97 p_input->request_vout.p_private = p_aout;
100 /* Prepare format structure */
101 memcpy( &chain_input_format, &p_input->input,
102 sizeof(audio_sample_format_t) );
103 memcpy( &chain_output_format, &p_aout->mixer.mixer,
104 sizeof(audio_sample_format_t) );
105 chain_output_format.i_rate = p_input->input.i_rate;
106 aout_FormatPrepare( &chain_output_format );
108 /* Now add user filters */
109 if( var_Type( p_aout, "visual" ) == 0 )
111 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
112 text.psz_string = _("Visualizations");
113 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
114 val.psz_string = (char*)""; text.psz_string = _("Disable");
115 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
116 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
117 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
118 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
119 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
120 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
121 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
122 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
123 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
125 /* Look for goom plugin */
126 if( module_exists( "goom" ) )
128 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
129 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
132 /* Look for galaktos plugin */
133 if( module_exists( "galaktos" ) )
135 val.psz_string = (char*)"galaktos"; text.psz_string = (char*)"GaLaktos";
136 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
139 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
141 var_SetString( p_aout, "visual", val.psz_string );
142 free( val.psz_string );
144 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
147 if( var_Type( p_aout, "equalizer" ) == 0 )
149 module_config_t *p_config;
152 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
153 if( p_config && p_config->i_list )
155 var_Create( p_aout, "equalizer",
156 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
157 text.psz_string = _("Equalizer");
158 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
160 val.psz_string = (char*)""; text.psz_string = _("Disable");
161 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
163 for( i = 0; i < p_config->i_list; i++ )
165 val.psz_string = (char *)p_config->ppsz_list[i];
166 text.psz_string = (char *)p_config->ppsz_list_text[i];
167 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
171 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
175 if( var_Type( p_aout, "audio-filter" ) == 0 )
177 var_Create( p_aout, "audio-filter",
178 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
179 text.psz_string = _("Audio filters");
180 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
182 if( var_Type( p_aout, "audio-visual" ) == 0 )
184 var_Create( p_aout, "audio-visual",
185 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
186 text.psz_string = _("Audio visualizations");
187 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
190 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
192 module_config_t *p_config;
195 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
196 if( p_config && p_config->i_list )
198 var_Create( p_aout, "audio-replay-gain-mode",
199 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
201 text.psz_string = _("Replay gain");
202 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
204 for( i = 0; i < p_config->i_list; i++ )
206 val.psz_string = (char *)p_config->ppsz_list[i];
207 text.psz_string = (char *)p_config->ppsz_list_text[i];
208 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
212 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
215 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
217 var_Create( p_aout, "audio-replay-gain-preamp",
218 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
220 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
222 var_Create( p_aout, "audio-replay-gain-default",
223 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
225 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
227 var_Create( p_aout, "audio-replay-gain-peak-protection",
228 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
230 if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
232 var_Create( p_aout, "audio-time-stretch",
233 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
236 psz_filters = var_GetString( p_aout, "audio-filter" );
237 psz_visual = var_GetString( p_aout, "audio-visual");
238 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
240 p_input->b_recycle_vout = psz_visual && *psz_visual;
242 /* parse user filter lists */
243 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
245 char *ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
246 char *psz_next = NULL;
247 char *psz_parser = ppsz_array[i_visual];
249 if( psz_parser == NULL || !*psz_parser )
252 while( psz_parser && *psz_parser )
254 aout_filter_t * p_filter = NULL;
256 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
258 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
262 while( *psz_parser == ' ' && *psz_parser == ':' )
266 if( ( psz_next = strchr( psz_parser , ':' ) ) )
270 if( *psz_parser =='\0' )
275 /* Create a VLC object */
276 static const char typename[] = "audio filter";
277 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
278 VLC_OBJECT_GENERIC, typename );
279 if( p_filter == NULL )
281 msg_Err( p_aout, "cannot add user filter %s (skipped)",
283 psz_parser = psz_next;
287 vlc_object_attach( p_filter , p_aout );
289 p_filter->request_vout.pf_request_vout = RequestVoutFromFilter;
290 p_filter->request_vout.p_private = p_input;
292 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
293 p_filter->p_owner->p_aout = p_aout;
294 p_filter->p_owner->p_input = p_input;
296 /* try to find the requested filter */
297 if( i_visual == 2 ) /* this can only be a visualization module */
300 memcpy( &p_filter->input, &chain_output_format,
301 sizeof(audio_sample_format_t) );
302 memcpy( &p_filter->output, &chain_output_format,
303 sizeof(audio_sample_format_t) );
305 p_filter->p_module = module_need( p_filter, "visualization",
308 else /* this can be a audio filter module as well as a visualization module */
311 memcpy( &p_filter->input, &chain_input_format,
312 sizeof(audio_sample_format_t) );
313 memcpy( &p_filter->output, &chain_output_format,
314 sizeof(audio_sample_format_t) );
316 p_filter->p_module = module_need( p_filter, "audio filter",
319 if ( p_filter->p_module == NULL )
321 /* if the filter requested a special format, retry */
322 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
323 &chain_input_format )
324 && AOUT_FMTS_IDENTICAL( &p_filter->output,
325 &chain_output_format ) ) )
327 aout_FormatPrepare( &p_filter->input );
328 aout_FormatPrepare( &p_filter->output );
329 p_filter->p_module = module_need( p_filter,
333 /* try visual filters */
336 memcpy( &p_filter->input, &chain_output_format,
337 sizeof(audio_sample_format_t) );
338 memcpy( &p_filter->output, &chain_output_format,
339 sizeof(audio_sample_format_t) );
340 p_filter->p_module = module_need( p_filter,
348 if ( p_filter->p_module == NULL )
350 msg_Err( p_aout, "cannot add user filter %s (skipped)",
353 free( p_filter->p_owner );
354 vlc_object_detach( p_filter );
355 vlc_object_release( p_filter );
357 psz_parser = psz_next;
361 /* complete the filter chain if necessary */
362 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
364 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
365 &p_input->i_nb_filters,
367 &p_filter->input ) < 0 )
369 msg_Err( p_aout, "cannot add user filter %s (skipped)",
372 module_unneed( p_filter, p_filter->p_module );
373 free( p_filter->p_owner );
374 vlc_object_detach( p_filter );
375 vlc_object_release( p_filter );
377 psz_parser = psz_next;
383 p_filter->b_continuity = false;
384 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
385 memcpy( &chain_input_format, &p_filter->output,
386 sizeof( audio_sample_format_t ) );
388 /* next filter if any */
389 psz_parser = psz_next;
394 free( psz_scaletempo );
396 /* complete the filter chain if necessary */
397 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
399 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
400 &p_input->i_nb_filters,
402 &chain_output_format ) < 0 )
404 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
409 /* Prepare hints for the buffer allocator. */
410 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
411 p_input->input_alloc.i_bytes_per_sec = -1;
413 /* Create resamplers. */
414 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
416 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
417 p_aout->mixer.mixer.i_rate)
418 * (100 + AOUT_MAX_RESAMPLING)) / 100;
419 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
421 /* Just in case... */
422 chain_output_format.i_rate++;
424 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
425 &p_input->i_nb_resamplers,
426 &chain_output_format,
427 &p_aout->mixer.mixer ) < 0 )
429 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
433 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
434 p_input->i_nb_resamplers,
435 &p_input->input_alloc );
436 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
438 /* Setup the initial rate of the resampler */
439 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
441 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
443 p_input->p_playback_rate_filter = NULL;
444 for( int i = 0; i < p_input->i_nb_filters; i++ )
446 aout_filter_t *p_filter = p_input->pp_filters[i];
447 if( strcmp( "scaletempo", p_filter->psz_object_name ) == 0 )
449 p_input->p_playback_rate_filter = p_filter;
453 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
455 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
458 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
459 p_input->i_nb_filters,
460 &p_input->input_alloc );
461 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
463 /* i_bytes_per_sec is still == -1 if no filters */
464 p_input->input_alloc.i_bytes_per_sec = __MAX(
465 p_input->input_alloc.i_bytes_per_sec,
466 (int)(p_input->input.i_bytes_per_frame
467 * p_input->input.i_rate
468 / p_input->input.i_frame_length) );
470 ReplayGainSelect( p_aout, p_input );
473 p_input->b_error = false;
474 p_input->b_restart = false;
475 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
480 /*****************************************************************************
481 * aout_InputDelete : delete an input
482 *****************************************************************************
483 * This function must be entered with the mixer lock.
484 *****************************************************************************/
485 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
487 AOUT_ASSERT_MIXER_LOCKED;
488 if ( p_input->b_error )
491 /* XXX We need to update b_recycle_vout before calling aout_FiltersDestroyPipeline.
492 * FIXME They can be a race condition if audio-visual is updated between
493 * aout_InputDelete and aout_InputNew.
495 char *psz_visual = var_GetString( p_aout, "audio-visual");
496 p_input->b_recycle_vout = psz_visual && *psz_visual;
499 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
500 p_input->i_nb_filters );
501 p_input->i_nb_filters = 0;
502 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
503 p_input->i_nb_resamplers );
504 p_input->i_nb_resamplers = 0;
505 aout_FifoDestroy( p_aout, &p_input->fifo );
510 /*****************************************************************************
511 * aout_InputPlay : play a buffer
512 *****************************************************************************
513 * This function must be entered with the input lock.
514 *****************************************************************************/
515 /* XXX Do not activate it !! */
516 //#define AOUT_PROCESS_BEFORE_CHEKS
517 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
518 aout_buffer_t * p_buffer, int i_input_rate )
521 AOUT_ASSERT_INPUT_LOCKED;
523 if( p_input->b_restart )
526 uint8_t *p_first_byte_to_mix;
528 mtime_t i_pause_date;
530 aout_lock_mixer( p_aout );
531 aout_lock_input_fifos( p_aout );
533 /* A little trick to avoid loosing our input fifo and properties */
535 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
536 fifo = p_input->fifo;
537 b_paused = p_input->b_paused;
538 i_pause_date = p_input->i_pause_date;
540 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
542 aout_InputDelete( p_aout, p_input );
544 aout_InputNew( p_aout, p_input, &p_input->request_vout );
545 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
546 p_input->fifo = fifo;
547 p_input->b_paused = b_paused;
548 p_input->i_pause_date = i_pause_date;
550 aout_unlock_input_fifos( p_aout );
551 aout_unlock_mixer( p_aout );
554 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
556 inputDrop( p_input, p_buffer );
560 #ifdef AOUT_PROCESS_BEFORE_CHEKS
561 /* Run pre-filters. */
562 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
565 /* Actually run the resampler now. */
566 if ( p_input->i_nb_resamplers > 0 )
568 const mtime_t i_date = p_buffer->start_date;
569 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
570 p_input->i_nb_resamplers,
574 if( p_buffer->i_nb_samples <= 0 )
576 aout_BufferFree( p_buffer );
581 /* Handle input rate change, but keep drift correction */
582 if( i_input_rate != p_input->i_last_input_rate )
584 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
585 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
586 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
587 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
589 p_input->i_last_input_rate = i_input_rate;
592 /* We don't care if someone changes the start date behind our back after
593 * this. We'll deal with that when pushing the buffer, and compensate
594 * with the next incoming buffer. */
595 aout_lock_input_fifos( p_aout );
596 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
597 aout_unlock_input_fifos( p_aout );
599 if ( start_date != 0 && start_date < mdate() )
601 /* The decoder is _very_ late. This can only happen if the user
602 * pauses the stream (or if the decoder is buggy, which cannot
604 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
605 "clearing out", mdate() - start_date );
606 aout_lock_input_fifos( p_aout );
607 aout_FifoSet( p_aout, &p_input->fifo, 0 );
608 p_input->p_first_byte_to_mix = NULL;
609 aout_unlock_input_fifos( p_aout );
610 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
611 msg_Warn( p_aout, "timing screwed, stopping resampling" );
612 inputResamplingStop( p_input );
616 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
618 /* The decoder gives us f*cked up PTS. It's its business, but we
619 * can't present it anyway, so drop the buffer. */
620 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
621 mdate() - p_buffer->start_date );
623 inputDrop( p_input, p_buffer );
624 inputResamplingStop( p_input );
628 /* If the audio drift is too big then it's not worth trying to resample
630 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
631 if ( start_date != 0 &&
632 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
634 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
635 start_date - p_buffer->start_date );
636 aout_lock_input_fifos( p_aout );
637 aout_FifoSet( p_aout, &p_input->fifo, 0 );
638 p_input->p_first_byte_to_mix = NULL;
639 aout_unlock_input_fifos( p_aout );
640 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
641 msg_Warn( p_aout, "timing screwed, stopping resampling" );
642 inputResamplingStop( p_input );
645 else if ( start_date != 0 &&
646 ( start_date > p_buffer->start_date + i_pts_tolerance) )
648 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
649 start_date - p_buffer->start_date );
650 inputDrop( p_input, p_buffer );
654 if ( start_date == 0 ) start_date = p_buffer->start_date;
656 #ifndef AOUT_PROCESS_BEFORE_CHEKS
657 /* Run pre-filters. */
658 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
662 /* Run the resampler if needed.
663 * We first need to calculate the output rate of this resampler. */
664 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
665 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
666 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
667 p_input->i_nb_resamplers > 0 )
669 /* Can happen in several circumstances :
670 * 1. A problem at the input (clock drift)
671 * 2. A small pause triggered by the user
672 * 3. Some delay in the output stage, causing a loss of lip
674 * Solution : resample the buffer to avoid a scratch.
676 mtime_t drift = p_buffer->start_date - start_date;
678 p_input->i_resamp_start_date = mdate();
679 p_input->i_resamp_start_drift = (int)drift;
682 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
684 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
686 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
687 drift > 0 ? drift : -drift,
688 drift > 0 ? "in advance" : "late",
689 drift > 0 ? "down" : "up");
692 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
694 /* Resampling has been triggered previously (because of dates
695 * mismatch). We want the resampling to happen progressively so
696 * it isn't too audible to the listener. */
698 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
700 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
704 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
707 /* Check if everything is back to normal, in which case we can stop the
709 unsigned int i_nominal_rate =
710 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
711 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
712 : p_input->input.i_rate;
713 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
715 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
716 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
717 "(drift: %"PRIi64")",
718 mdate() - p_input->i_resamp_start_date,
719 p_buffer->start_date - start_date);
721 else if( abs( (int)(p_buffer->start_date - start_date) ) <
722 abs( p_input->i_resamp_start_drift ) / 2 )
724 /* if we reduced the drift from half, then it is time to switch
725 * back the resampling direction. */
726 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
727 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
729 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
730 p_input->i_resamp_start_drift = 0;
732 else if( p_input->i_resamp_start_drift &&
733 ( abs( (int)(p_buffer->start_date - start_date) ) >
734 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
736 /* If the drift is increasing and not decreasing, than something
737 * is bad. We'd better stop the resampling right now. */
738 msg_Warn( p_aout, "timing screwed, stopping resampling" );
739 inputResamplingStop( p_input );
743 #ifndef AOUT_PROCESS_BEFORE_CHEKS
744 /* Actually run the resampler now. */
745 if ( p_input->i_nb_resamplers > 0 )
747 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
748 p_input->i_nb_resamplers,
752 if( p_buffer->i_nb_samples <= 0 )
754 aout_BufferFree( p_buffer );
759 /* Adding the start date will be managed by aout_FifoPush(). */
760 p_buffer->end_date = start_date +
761 (p_buffer->end_date - p_buffer->start_date);
762 p_buffer->start_date = start_date;
764 aout_lock_input_fifos( p_aout );
765 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
766 aout_unlock_input_fifos( p_aout );
770 /*****************************************************************************
772 *****************************************************************************/
774 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
775 const char * psz_error_message )
778 msg_Err( p_aout, "%s", psz_error_message );
781 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
782 p_input->i_nb_filters );
783 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
784 p_input->i_nb_resamplers );
785 aout_FifoDestroy( p_aout, &p_input->fifo );
786 var_Destroy( p_aout, "visual" );
787 var_Destroy( p_aout, "equalizer" );
788 var_Destroy( p_aout, "audio-filter" );
789 var_Destroy( p_aout, "audio-visual" );
791 var_Destroy( p_aout, "audio-replay-gain-mode" );
792 var_Destroy( p_aout, "audio-replay-gain-default" );
793 var_Destroy( p_aout, "audio-replay-gain-preamp" );
794 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
797 p_input->b_error = 1;
800 static void inputDrop( aout_input_t *p_input, aout_buffer_t *p_buffer )
802 aout_BufferFree( p_buffer );
804 p_input->i_buffer_lost++;
807 static void inputResamplingStop( aout_input_t *p_input )
809 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
810 if( p_input->i_nb_resamplers != 0 )
812 p_input->pp_resamplers[0]->input.i_rate =
813 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
814 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
815 : p_input->input.i_rate;
816 p_input->pp_resamplers[0]->b_continuity = false;
820 static vout_thread_t *RequestVout( void *p_private,
821 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
823 aout_instance_t *p_aout = p_private;
824 VLC_UNUSED(b_recycle);
825 return vout_Request( p_aout, p_vout, p_fmt );
828 static vout_thread_t *RequestVoutFromFilter( void *p_private,
829 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
831 aout_input_t *p_input = p_private;
832 aout_request_vout_t *p_request = &p_input->request_vout;
834 return p_request->pf_request_vout( p_request->p_private,
835 p_vout, p_fmt, p_input->b_recycle_vout && b_recycle );
838 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
839 const char *psz_name, bool b_add )
841 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
842 psz_variable, psz_name, b_add ) ? 1 : 0;
845 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
846 vlc_value_t oldval, vlc_value_t newval, void *p_data )
848 aout_instance_t *p_aout = (aout_instance_t *)p_this;
849 char *psz_mode = newval.psz_string;
850 (void)psz_cmd; (void)oldval; (void)p_data;
852 if( !psz_mode || !*psz_mode )
854 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
855 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
856 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false );
860 if( !strcmp( "goom", psz_mode ) )
862 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
863 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
864 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
866 else if( !strcmp( "galaktos", psz_mode ) )
868 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
869 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
870 ChangeFiltersString( p_aout, "audio-visual", "galaktos", true );
874 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
875 var_SetString( p_aout, "effect-list", psz_mode );
877 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
878 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
879 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
884 AoutInputsMarkToRestart( p_aout );
889 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
890 vlc_value_t oldval, vlc_value_t newval, void *p_data )
892 aout_instance_t *p_aout = (aout_instance_t *)p_this;
893 char *psz_mode = newval.psz_string;
895 (void)psz_cmd; (void)oldval; (void)p_data;
897 if( !psz_mode || !*psz_mode )
899 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
904 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
905 var_SetString( p_aout, "equalizer-preset", psz_mode );
906 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
912 AoutInputsMarkToRestart( p_aout );
916 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
917 vlc_value_t oldval, vlc_value_t newval, void *p_data )
919 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
920 VLC_UNUSED(newval); VLC_UNUSED(p_data);
921 aout_instance_t *p_aout = (aout_instance_t *)p_this;
924 aout_lock_mixer( p_aout );
925 for( i = 0; i < p_aout->i_nb_inputs; i++ )
926 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
928 /* Restart the mixer (a trivial mixer may be in use) */
929 aout_MixerMultiplierSet( p_aout, p_aout->mixer.f_multiplier );
930 aout_unlock_mixer( p_aout );
935 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
937 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
938 "audio-replay-gain-mode" );
943 p_input->f_multiplier = 1.0;
945 if( !psz_replay_gain )
948 /* Find select mode */
949 if( !strcmp( psz_replay_gain, "track" ) )
950 i_mode = AUDIO_REPLAY_GAIN_TRACK;
951 else if( !strcmp( psz_replay_gain, "album" ) )
952 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
954 i_mode = AUDIO_REPLAY_GAIN_MAX;
956 /* If the select mode is not available, prefer the other one */
958 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
960 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
962 if( p_input->replay_gain.pb_gain[i_use] )
968 if( i_use != AUDIO_REPLAY_GAIN_MAX )
969 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
970 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
971 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
974 p_input->f_multiplier = pow( 10.0, f_gain / 20.0 );
977 if( p_input->replay_gain.pb_peak[i_use] &&
978 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
979 p_input->replay_gain.pf_peak[i_use] * p_input->f_multiplier > 1.0 )
981 p_input->f_multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
984 free( psz_replay_gain );