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> /* for input_thread_t and i_pts_delay */
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_instance_t *, 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 * );
67 /*****************************************************************************
68 * aout_InputNew : allocate a new input and rework the filter pipeline
69 *****************************************************************************/
70 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t *p_request_vout )
72 audio_sample_format_t chain_input_format;
73 audio_sample_format_t chain_output_format;
74 vlc_value_t val, text;
75 char *psz_filters, *psz_visual, *psz_scaletempo;
78 aout_FormatPrint( p_aout, "input", &p_input->input );
80 p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
83 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
84 p_input->p_first_byte_to_mix = NULL;
89 p_input->request_vout = *p_request_vout;
93 p_input->request_vout.pf_request_vout = RequestVout;
94 p_input->request_vout.p_private = p_aout;
97 /* Prepare format structure */
98 memcpy( &chain_input_format, &p_input->input,
99 sizeof(audio_sample_format_t) );
100 memcpy( &chain_output_format, &p_aout->mixer.mixer,
101 sizeof(audio_sample_format_t) );
102 chain_output_format.i_rate = p_input->input.i_rate;
103 aout_FormatPrepare( &chain_output_format );
105 /* Now add user filters */
106 if( var_Type( p_aout, "visual" ) == 0 )
108 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
109 text.psz_string = _("Visualizations");
110 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
111 val.psz_string = (char*)""; text.psz_string = _("Disable");
112 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
113 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
114 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
115 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
116 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
117 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
118 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
119 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
120 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
122 /* Look for goom plugin */
123 if( module_exists( "goom" ) )
125 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
126 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
129 /* Look for galaktos plugin */
130 if( module_exists( "galaktos" ) )
132 val.psz_string = (char*)"galaktos"; text.psz_string = (char*)"GaLaktos";
133 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
136 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
138 var_Set( p_aout, "visual", val );
139 free( val.psz_string );
141 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
144 if( var_Type( p_aout, "equalizer" ) == 0 )
146 module_config_t *p_config;
149 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
150 if( p_config && p_config->i_list )
152 var_Create( p_aout, "equalizer",
153 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
154 text.psz_string = _("Equalizer");
155 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
157 val.psz_string = (char*)""; text.psz_string = _("Disable");
158 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
160 for( i = 0; i < p_config->i_list; i++ )
162 val.psz_string = (char *)p_config->ppsz_list[i];
163 text.psz_string = (char *)p_config->ppsz_list_text[i];
164 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
168 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
172 if( var_Type( p_aout, "audio-filter" ) == 0 )
174 var_Create( p_aout, "audio-filter",
175 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
176 text.psz_string = _("Audio filters");
177 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
179 if( var_Type( p_aout, "audio-visual" ) == 0 )
181 var_Create( p_aout, "audio-visual",
182 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
183 text.psz_string = _("Audio visualizations");
184 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
187 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
189 module_config_t *p_config;
192 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
193 if( p_config && p_config->i_list )
195 var_Create( p_aout, "audio-replay-gain-mode",
196 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
198 text.psz_string = _("Replay gain");
199 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
201 for( i = 0; i < p_config->i_list; i++ )
203 val.psz_string = (char *)p_config->ppsz_list[i];
204 text.psz_string = (char *)p_config->ppsz_list_text[i];
205 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
209 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
212 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
214 var_Create( p_aout, "audio-replay-gain-preamp",
215 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
217 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
219 var_Create( p_aout, "audio-replay-gain-default",
220 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
222 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
224 var_Create( p_aout, "audio-replay-gain-peak-protection",
225 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
227 if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
229 var_Create( p_aout, "audio-time-stretch",
230 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
233 var_Get( p_aout, "audio-filter", &val );
234 psz_filters = val.psz_string;
235 var_Get( p_aout, "audio-visual", &val );
236 psz_visual = val.psz_string;
238 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
240 /* parse user filter lists */
241 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
243 char *ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
244 char *psz_next = NULL;
245 char *psz_parser = ppsz_array[i_visual];
247 if( psz_parser == NULL || !*psz_parser )
250 while( psz_parser && *psz_parser )
252 aout_filter_t * p_filter = NULL;
254 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
256 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
260 while( *psz_parser == ' ' && *psz_parser == ':' )
264 if( ( psz_next = strchr( psz_parser , ':' ) ) )
268 if( *psz_parser =='\0' )
273 /* Create a VLC object */
274 static const char typename[] = "audio filter";
275 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
276 VLC_OBJECT_GENERIC, typename );
277 if( p_filter == NULL )
279 msg_Err( p_aout, "cannot add user filter %s (skipped)",
281 psz_parser = psz_next;
285 vlc_object_attach( p_filter , p_aout );
287 p_filter->request_vout = p_input->request_vout;
288 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
289 p_filter->p_owner->p_aout = p_aout;
290 p_filter->p_owner->p_input = p_input;
292 /* try to find the requested filter */
293 if( i_visual == 2 ) /* this can only be a visualization module */
296 memcpy( &p_filter->input, &chain_output_format,
297 sizeof(audio_sample_format_t) );
298 memcpy( &p_filter->output, &chain_output_format,
299 sizeof(audio_sample_format_t) );
301 p_filter->p_module = module_need( p_filter, "visualization",
304 else /* this can be a audio filter module as well as a visualization module */
307 memcpy( &p_filter->input, &chain_input_format,
308 sizeof(audio_sample_format_t) );
309 memcpy( &p_filter->output, &chain_output_format,
310 sizeof(audio_sample_format_t) );
312 p_filter->p_module = module_need( p_filter, "audio filter",
315 if ( p_filter->p_module == NULL )
317 /* if the filter requested a special format, retry */
318 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
319 &chain_input_format )
320 && AOUT_FMTS_IDENTICAL( &p_filter->output,
321 &chain_output_format ) ) )
323 aout_FormatPrepare( &p_filter->input );
324 aout_FormatPrepare( &p_filter->output );
325 p_filter->p_module = module_need( p_filter,
329 /* try visual filters */
332 memcpy( &p_filter->input, &chain_output_format,
333 sizeof(audio_sample_format_t) );
334 memcpy( &p_filter->output, &chain_output_format,
335 sizeof(audio_sample_format_t) );
336 p_filter->p_module = module_need( p_filter,
344 if ( p_filter->p_module == NULL )
346 msg_Err( p_aout, "cannot add user filter %s (skipped)",
349 free( p_filter->p_owner );
350 vlc_object_detach( p_filter );
351 vlc_object_release( p_filter );
353 psz_parser = psz_next;
357 /* complete the filter chain if necessary */
358 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
360 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
361 &p_input->i_nb_filters,
363 &p_filter->input ) < 0 )
365 msg_Err( p_aout, "cannot add user filter %s (skipped)",
368 module_unneed( p_filter, p_filter->p_module );
369 free( p_filter->p_owner );
370 vlc_object_detach( p_filter );
371 vlc_object_release( p_filter );
373 psz_parser = psz_next;
379 p_filter->b_continuity = false;
380 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
381 memcpy( &chain_input_format, &p_filter->output,
382 sizeof( audio_sample_format_t ) );
384 /* next filter if any */
385 psz_parser = psz_next;
390 free( psz_scaletempo );
392 /* complete the filter chain if necessary */
393 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
395 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
396 &p_input->i_nb_filters,
398 &chain_output_format ) < 0 )
400 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
405 /* Prepare hints for the buffer allocator. */
406 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
407 p_input->input_alloc.i_bytes_per_sec = -1;
409 /* Create resamplers. */
410 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
412 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
413 p_aout->mixer.mixer.i_rate)
414 * (100 + AOUT_MAX_RESAMPLING)) / 100;
415 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
417 /* Just in case... */
418 chain_output_format.i_rate++;
420 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
421 &p_input->i_nb_resamplers,
422 &chain_output_format,
423 &p_aout->mixer.mixer ) < 0 )
425 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
429 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
430 p_input->i_nb_resamplers,
431 &p_input->input_alloc );
432 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
434 /* Setup the initial rate of the resampler */
435 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
437 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
439 p_input->p_playback_rate_filter = NULL;
440 for( int i = 0; i < p_input->i_nb_filters; i++ )
442 aout_filter_t *p_filter = p_input->pp_filters[i];
443 if( strcmp( "scaletempo", p_filter->psz_object_name ) == 0 )
445 p_input->p_playback_rate_filter = p_filter;
449 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
451 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
454 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
455 p_input->i_nb_filters,
456 &p_input->input_alloc );
457 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
459 /* i_bytes_per_sec is still == -1 if no filters */
460 p_input->input_alloc.i_bytes_per_sec = __MAX(
461 p_input->input_alloc.i_bytes_per_sec,
462 (int)(p_input->input.i_bytes_per_frame
463 * p_input->input.i_rate
464 / p_input->input.i_frame_length) );
466 ReplayGainSelect( p_aout, p_input );
469 p_input->b_error = false;
470 p_input->b_restart = false;
471 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
476 /*****************************************************************************
477 * aout_InputDelete : delete an input
478 *****************************************************************************
479 * This function must be entered with the mixer lock.
480 *****************************************************************************/
481 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
483 AOUT_ASSERT_MIXER_LOCKED;
484 if ( p_input->b_error ) return 0;
486 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
487 p_input->i_nb_filters );
488 p_input->i_nb_filters = 0;
489 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
490 p_input->i_nb_resamplers );
491 p_input->i_nb_resamplers = 0;
492 aout_FifoDestroy( p_aout, &p_input->fifo );
497 /*****************************************************************************
498 * aout_InputPlay : play a buffer
499 *****************************************************************************
500 * This function must be entered with the input lock.
501 *****************************************************************************/
502 /* XXX Do not activate it !! */
503 //#define AOUT_PROCESS_BEFORE_CHEKS
504 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
505 aout_buffer_t * p_buffer, int i_input_rate )
508 AOUT_ASSERT_INPUT_LOCKED;
510 if( p_input->b_restart )
513 uint8_t *p_first_byte_to_mix;
515 mtime_t i_pause_date;
517 aout_lock_mixer( p_aout );
518 aout_lock_input_fifos( p_aout );
520 /* A little trick to avoid loosing our input fifo and properties */
522 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
523 fifo = p_input->fifo;
524 b_paused = p_input->b_paused;
525 i_pause_date = p_input->i_pause_date;
527 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
529 aout_InputDelete( p_aout, p_input );
531 aout_InputNew( p_aout, p_input, &p_input->request_vout );
532 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
533 p_input->fifo = fifo;
534 p_input->b_paused = b_paused;
535 p_input->i_pause_date = i_pause_date;
537 aout_unlock_input_fifos( p_aout );
538 aout_unlock_mixer( p_aout );
541 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
543 inputDrop( p_aout, p_input, p_buffer );
547 #ifdef AOUT_PROCESS_BEFORE_CHEKS
548 /* Run pre-filters. */
549 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
552 /* Actually run the resampler now. */
553 if ( p_input->i_nb_resamplers > 0 )
555 const mtime_t i_date = p_buffer->start_date;
556 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
557 p_input->i_nb_resamplers,
561 if( p_buffer->i_nb_samples <= 0 )
563 aout_BufferFree( p_buffer );
568 /* Handle input rate change, but keep drift correction */
569 if( i_input_rate != p_input->i_last_input_rate )
571 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
572 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
573 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
574 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
576 p_input->i_last_input_rate = i_input_rate;
579 /* We don't care if someone changes the start date behind our back after
580 * this. We'll deal with that when pushing the buffer, and compensate
581 * with the next incoming buffer. */
582 aout_lock_input_fifos( p_aout );
583 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
584 aout_unlock_input_fifos( p_aout );
586 if ( start_date != 0 && start_date < mdate() )
588 /* The decoder is _very_ late. This can only happen if the user
589 * pauses the stream (or if the decoder is buggy, which cannot
591 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
592 "clearing out", mdate() - start_date );
593 aout_lock_input_fifos( p_aout );
594 aout_FifoSet( p_aout, &p_input->fifo, 0 );
595 p_input->p_first_byte_to_mix = NULL;
596 aout_unlock_input_fifos( p_aout );
597 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
598 msg_Warn( p_aout, "timing screwed, stopping resampling" );
599 inputResamplingStop( p_input );
603 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
605 /* The decoder gives us f*cked up PTS. It's its business, but we
606 * can't present it anyway, so drop the buffer. */
607 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
608 mdate() - p_buffer->start_date );
610 inputDrop( p_aout, p_input, p_buffer );
611 inputResamplingStop( p_input );
615 /* If the audio drift is too big then it's not worth trying to resample
617 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
618 if ( start_date != 0 &&
619 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
621 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
622 start_date - p_buffer->start_date );
623 aout_lock_input_fifos( p_aout );
624 aout_FifoSet( p_aout, &p_input->fifo, 0 );
625 p_input->p_first_byte_to_mix = NULL;
626 aout_unlock_input_fifos( p_aout );
627 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
628 msg_Warn( p_aout, "timing screwed, stopping resampling" );
629 inputResamplingStop( p_input );
632 else if ( start_date != 0 &&
633 ( start_date > p_buffer->start_date + i_pts_tolerance) )
635 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
636 start_date - p_buffer->start_date );
637 inputDrop( p_aout, p_input, p_buffer );
641 if ( start_date == 0 ) start_date = p_buffer->start_date;
643 #ifndef AOUT_PROCESS_BEFORE_CHEKS
644 /* Run pre-filters. */
645 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
649 /* Run the resampler if needed.
650 * We first need to calculate the output rate of this resampler. */
651 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
652 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
653 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
654 p_input->i_nb_resamplers > 0 )
656 /* Can happen in several circumstances :
657 * 1. A problem at the input (clock drift)
658 * 2. A small pause triggered by the user
659 * 3. Some delay in the output stage, causing a loss of lip
661 * Solution : resample the buffer to avoid a scratch.
663 mtime_t drift = p_buffer->start_date - start_date;
665 p_input->i_resamp_start_date = mdate();
666 p_input->i_resamp_start_drift = (int)drift;
669 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
671 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
673 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
674 drift > 0 ? drift : -drift,
675 drift > 0 ? "in advance" : "late",
676 drift > 0 ? "down" : "up");
679 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
681 /* Resampling has been triggered previously (because of dates
682 * mismatch). We want the resampling to happen progressively so
683 * it isn't too audible to the listener. */
685 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
687 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
691 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
694 /* Check if everything is back to normal, in which case we can stop the
696 unsigned int i_nominal_rate =
697 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
698 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
699 : p_input->input.i_rate;
700 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
702 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
703 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
704 "(drift: %"PRIi64")",
705 mdate() - p_input->i_resamp_start_date,
706 p_buffer->start_date - start_date);
708 else if( abs( (int)(p_buffer->start_date - start_date) ) <
709 abs( p_input->i_resamp_start_drift ) / 2 )
711 /* if we reduced the drift from half, then it is time to switch
712 * back the resampling direction. */
713 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
714 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
716 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
717 p_input->i_resamp_start_drift = 0;
719 else if( p_input->i_resamp_start_drift &&
720 ( abs( (int)(p_buffer->start_date - start_date) ) >
721 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
723 /* If the drift is increasing and not decreasing, than something
724 * is bad. We'd better stop the resampling right now. */
725 msg_Warn( p_aout, "timing screwed, stopping resampling" );
726 inputResamplingStop( p_input );
730 #ifndef AOUT_PROCESS_BEFORE_CHEKS
731 /* Actually run the resampler now. */
732 if ( p_input->i_nb_resamplers > 0 )
734 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
735 p_input->i_nb_resamplers,
739 if( p_buffer->i_nb_samples <= 0 )
741 aout_BufferFree( p_buffer );
746 /* Adding the start date will be managed by aout_FifoPush(). */
747 p_buffer->end_date = start_date +
748 (p_buffer->end_date - p_buffer->start_date);
749 p_buffer->start_date = start_date;
751 aout_lock_input_fifos( p_aout );
752 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
753 aout_unlock_input_fifos( p_aout );
757 /*****************************************************************************
759 *****************************************************************************/
761 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
762 const char * psz_error_message )
765 msg_Err( p_aout, "%s", psz_error_message );
768 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
769 p_input->i_nb_filters );
770 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
771 p_input->i_nb_resamplers );
772 aout_FifoDestroy( p_aout, &p_input->fifo );
773 var_Destroy( p_aout, "visual" );
774 var_Destroy( p_aout, "equalizer" );
775 var_Destroy( p_aout, "audio-filter" );
776 var_Destroy( p_aout, "audio-visual" );
778 var_Destroy( p_aout, "audio-replay-gain-mode" );
779 var_Destroy( p_aout, "audio-replay-gain-default" );
780 var_Destroy( p_aout, "audio-replay-gain-preamp" );
781 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
784 p_input->b_error = 1;
787 static void inputDrop( aout_instance_t *p_aout, aout_input_t *p_input, aout_buffer_t *p_buffer )
789 aout_BufferFree( p_buffer );
791 p_input->i_buffer_lost++;
794 static void inputResamplingStop( aout_input_t *p_input )
796 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
797 if( p_input->i_nb_resamplers != 0 )
799 p_input->pp_resamplers[0]->input.i_rate =
800 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
801 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
802 : p_input->input.i_rate;
803 p_input->pp_resamplers[0]->b_continuity = false;
807 static vout_thread_t *RequestVout( void *p_private,
808 vout_thread_t *p_vout, video_format_t *p_fmt )
810 aout_instance_t *p_aout = p_private;
811 return vout_Request( p_aout, p_vout, p_fmt );
814 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
815 const char *psz_name, bool b_add )
817 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
818 psz_variable, psz_name, b_add ) ? 1 : 0;
821 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
822 vlc_value_t oldval, vlc_value_t newval, void *p_data )
824 aout_instance_t *p_aout = (aout_instance_t *)p_this;
825 char *psz_mode = newval.psz_string;
827 (void)psz_cmd; (void)oldval; (void)p_data;
829 if( !psz_mode || !*psz_mode )
831 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
832 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
833 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false );
837 if( !strcmp( "goom", psz_mode ) )
839 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
840 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
841 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
843 else if( !strcmp( "galaktos", psz_mode ) )
845 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
846 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
847 ChangeFiltersString( p_aout, "audio-visual", "galaktos", true );
851 val.psz_string = psz_mode;
852 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
853 var_Set( p_aout, "effect-list", val );
855 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
856 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
857 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
862 AoutInputsMarkToRestart( p_aout );
867 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
868 vlc_value_t oldval, vlc_value_t newval, void *p_data )
870 aout_instance_t *p_aout = (aout_instance_t *)p_this;
871 char *psz_mode = newval.psz_string;
874 (void)psz_cmd; (void)oldval; (void)p_data;
876 if( !psz_mode || !*psz_mode )
878 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
883 val.psz_string = psz_mode;
884 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
885 var_Set( p_aout, "equalizer-preset", val );
886 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
893 AoutInputsMarkToRestart( p_aout );
897 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
898 vlc_value_t oldval, vlc_value_t newval, void *p_data )
900 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
901 VLC_UNUSED(newval); VLC_UNUSED(p_data);
902 aout_instance_t *p_aout = (aout_instance_t *)p_this;
905 aout_lock_mixer( p_aout );
906 for( i = 0; i < p_aout->i_nb_inputs; i++ )
907 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
909 /* Restart the mixer (a trivial mixer may be in use) */
910 aout_MixerMultiplierSet( p_aout, p_aout->mixer.f_multiplier );
911 aout_unlock_mixer( p_aout );
916 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
918 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
919 "audio-replay-gain-mode" );
924 p_input->f_multiplier = 1.0;
926 if( !psz_replay_gain )
929 /* Find select mode */
930 if( !strcmp( psz_replay_gain, "track" ) )
931 i_mode = AUDIO_REPLAY_GAIN_TRACK;
932 else if( !strcmp( psz_replay_gain, "album" ) )
933 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
935 i_mode = AUDIO_REPLAY_GAIN_MAX;
937 /* If the select mode is not available, prefer the other one */
939 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
941 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
943 if( p_input->replay_gain.pb_gain[i_use] )
949 if( i_use != AUDIO_REPLAY_GAIN_MAX )
950 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
951 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
952 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
955 p_input->f_multiplier = pow( 10.0, f_gain / 20.0 );
958 if( p_input->replay_gain.pb_peak[i_use] &&
959 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
960 p_input->replay_gain.pf_peak[i_use] * p_input->f_multiplier > 1.0 )
962 p_input->f_multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
965 free( psz_replay_gain );