1 /*****************************************************************************
2 * input.c : internal management of input streams for the audio output
3 *****************************************************************************
4 * Copyright (C) 2002-2004 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 *****************************************************************************/
27 #include <stdlib.h> /* calloc(), malloc(), free() */
31 #include <vlc/input.h> /* for input_thread_t and i_pts_delay */
37 #include "audio_output.h"
38 #include "aout_internal.h"
40 static void inputFailure( aout_instance_t *, aout_input_t *, char * );
41 static int VisualizationCallback( vlc_object_t *, char const *,
42 vlc_value_t, vlc_value_t, void * );
43 static int EqualizerCallback( vlc_object_t *, char const *,
44 vlc_value_t, vlc_value_t, void * );
46 /*****************************************************************************
47 * aout_InputNew : allocate a new input and rework the filter pipeline
48 *****************************************************************************/
49 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
51 audio_sample_format_t chain_input_format;
52 audio_sample_format_t chain_output_format;
53 vlc_value_t val, text;
54 char * psz_filters, *psz_visual;
57 aout_FormatPrint( p_aout, "input", &p_input->input );
59 p_input->i_nb_filters = 0;
62 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
63 p_input->p_first_byte_to_mix = NULL;
65 /* Prepare format structure */
66 memcpy( &chain_input_format, &p_input->input,
67 sizeof(audio_sample_format_t) );
68 memcpy( &chain_output_format, &p_aout->mixer.mixer,
69 sizeof(audio_sample_format_t) );
70 chain_output_format.i_rate = p_input->input.i_rate;
71 aout_FormatPrepare( &chain_output_format );
73 /* Now add user filters */
74 if( var_Type( p_aout, "visual" ) == 0 )
77 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
78 text.psz_string = _("Visualizations");
79 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
80 val.psz_string = ""; text.psz_string = _("Disable");
81 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
82 val.psz_string = "spectrometer"; text.psz_string = _("Spectrometer");
83 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
84 val.psz_string = "scope"; text.psz_string = _("Scope");
85 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
86 val.psz_string = "spectrum"; text.psz_string = _("Spectrum");
87 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
89 /* Look for goom plugin */
90 p_module = config_FindModule( VLC_OBJECT(p_aout), "goom" );
93 val.psz_string = "goom"; text.psz_string = "Goom";
94 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
97 /* Look for galaktos plugin */
98 p_module = config_FindModule( VLC_OBJECT(p_aout), "galaktos" );
101 val.psz_string = "galaktos"; text.psz_string = "GaLaktos";
102 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
105 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
107 var_Set( p_aout, "visual", val );
108 if( val.psz_string ) free( val.psz_string );
110 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
113 if( var_Type( p_aout, "equalizer" ) == 0 )
115 module_config_t *p_config;
118 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
119 if( p_config && p_config->i_list )
121 var_Create( p_aout, "equalizer",
122 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
123 text.psz_string = _("Equalizer");
124 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
126 val.psz_string = ""; text.psz_string = _("Disable");
127 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
129 for( i = 0; i < p_config->i_list; i++ )
131 val.psz_string = p_config->ppsz_list[i];
132 text.psz_string = p_config->ppsz_list_text[i];
133 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
137 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
141 if( var_Type( p_aout, "audio-filter" ) == 0 )
143 var_Create( p_aout, "audio-filter",
144 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
145 text.psz_string = _("Audio filters");
146 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
148 if( var_Type( p_aout, "audio-visual" ) == 0 )
150 var_Create( p_aout, "audio-visual",
151 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
152 text.psz_string = _("Audio visualizations");
153 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
156 var_Get( p_aout, "audio-filter", &val );
157 psz_filters = val.psz_string;
158 var_Get( p_aout, "audio-visual", &val );
159 psz_visual = val.psz_string;
161 /* parse user filter lists */
162 for( i_visual = 0; i_visual < 2; i_visual++ )
164 char *psz_next = NULL;
165 char *psz_parser = i_visual ? psz_visual : psz_filters;
167 if( psz_parser == NULL || !*psz_parser )
170 while( psz_parser && *psz_parser )
172 aout_filter_t * p_filter = NULL;
174 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
176 msg_Dbg( p_aout, "max filter reached (%d)", AOUT_MAX_FILTERS );
180 while( *psz_parser == ' ' && *psz_parser == ':' )
184 if( ( psz_next = strchr( psz_parser , ':' ) ) )
188 if( *psz_parser =='\0' )
193 /* Create a VLC object */
194 p_filter = vlc_object_create( p_aout, sizeof(aout_filter_t) );
195 if( p_filter == NULL )
197 msg_Err( p_aout, "cannot add user filter %s (skipped)",
199 psz_parser = psz_next;
203 vlc_object_attach( p_filter , p_aout );
205 /* try to find the requested filter */
206 if( i_visual == 1 ) /* this can only be a visualization module */
209 memcpy( &p_filter->input, &chain_output_format,
210 sizeof(audio_sample_format_t) );
211 memcpy( &p_filter->output, &chain_output_format,
212 sizeof(audio_sample_format_t) );
214 p_filter->p_module = module_Need( p_filter, "visualization",
215 psz_parser, VLC_TRUE );
217 else /* this can be a audio filter module as well as a visualization module */
220 memcpy( &p_filter->input, &chain_input_format,
221 sizeof(audio_sample_format_t) );
222 memcpy( &p_filter->output, &chain_output_format,
223 sizeof(audio_sample_format_t) );
225 p_filter->p_module = module_Need( p_filter, "audio filter",
226 psz_parser, VLC_TRUE );
228 if ( p_filter->p_module == NULL )
230 /* if the filter requested a special format, retry */
231 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
232 &chain_input_format )
233 && AOUT_FMTS_IDENTICAL( &p_filter->output,
234 &chain_output_format ) ) )
236 aout_FormatPrepare( &p_filter->input );
237 aout_FormatPrepare( &p_filter->output );
238 p_filter->p_module = module_Need( p_filter, "audio filter",
239 psz_parser, VLC_TRUE );
241 /* try visual filters */
244 memcpy( &p_filter->input, &chain_output_format,
245 sizeof(audio_sample_format_t) );
246 memcpy( &p_filter->output, &chain_output_format,
247 sizeof(audio_sample_format_t) );
248 p_filter->p_module = module_Need( p_filter, "visualization",
249 psz_parser, VLC_TRUE );
255 if ( p_filter->p_module == NULL )
257 msg_Err( p_aout, "cannot add user filter %s (skipped)",
260 vlc_object_detach( p_filter );
261 vlc_object_destroy( p_filter );
263 psz_parser = psz_next;
267 /* complete the filter chain if necessary */
268 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
270 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
271 &p_input->i_nb_filters,
273 &p_filter->input ) < 0 )
275 msg_Err( p_aout, "cannot add user filter %s (skipped)",
278 module_Unneed( p_filter, p_filter->p_module );
279 vlc_object_detach( p_filter );
280 vlc_object_destroy( p_filter );
282 psz_parser = psz_next;
288 p_filter->b_continuity = VLC_FALSE;
289 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
290 memcpy( &chain_input_format, &p_filter->output,
291 sizeof( audio_sample_format_t ) );
293 /* next filter if any */
294 psz_parser = psz_next;
297 if( psz_filters ) free( psz_filters );
298 if( psz_visual ) free( psz_visual );
300 /* complete the filter chain if necessary */
301 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
303 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
304 &p_input->i_nb_filters,
306 &chain_output_format ) < 0 )
308 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
313 /* Prepare hints for the buffer allocator. */
314 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
315 p_input->input_alloc.i_bytes_per_sec = -1;
317 /* Create resamplers. */
318 if ( AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
320 p_input->i_nb_resamplers = 0;
324 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
325 p_aout->mixer.mixer.i_rate)
326 * (100 + AOUT_MAX_RESAMPLING)) / 100;
327 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
329 /* Just in case... */
330 chain_output_format.i_rate++;
332 p_input->i_nb_resamplers = 0;
333 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
334 &p_input->i_nb_resamplers,
335 &chain_output_format,
336 &p_aout->mixer.mixer ) < 0 )
338 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
342 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
343 p_input->i_nb_resamplers,
344 &p_input->input_alloc );
345 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
347 /* Setup the initial rate of the resampler */
348 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
350 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
352 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
353 p_input->i_nb_filters,
354 &p_input->input_alloc );
355 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
357 /* i_bytes_per_sec is still == -1 if no filters */
358 p_input->input_alloc.i_bytes_per_sec = __MAX(
359 p_input->input_alloc.i_bytes_per_sec,
360 (int)(p_input->input.i_bytes_per_frame
361 * p_input->input.i_rate
362 / p_input->input.i_frame_length) );
365 p_input->b_error = VLC_FALSE;
366 p_input->b_restart = VLC_FALSE;
371 /*****************************************************************************
372 * aout_InputDelete : delete an input
373 *****************************************************************************
374 * This function must be entered with the mixer lock.
375 *****************************************************************************/
376 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
378 if ( p_input->b_error ) return 0;
380 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
381 p_input->i_nb_filters );
382 p_input->i_nb_filters = 0;
383 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
384 p_input->i_nb_resamplers );
385 p_input->i_nb_resamplers = 0;
386 aout_FifoDestroy( p_aout, &p_input->fifo );
391 /*****************************************************************************
392 * aout_InputPlay : play a buffer
393 *****************************************************************************
394 * This function must be entered with the input lock.
395 *****************************************************************************/
396 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
397 aout_buffer_t * p_buffer )
401 if( p_input->b_restart )
403 aout_fifo_t fifo, dummy_fifo;
404 byte_t *p_first_byte_to_mix;
406 vlc_mutex_lock( &p_aout->mixer_lock );
408 /* A little trick to avoid loosing our input fifo */
409 aout_FifoInit( p_aout, &dummy_fifo, p_aout->mixer.mixer.i_rate );
410 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
411 fifo = p_input->fifo;
412 p_input->fifo = dummy_fifo;
413 aout_InputDelete( p_aout, p_input );
414 aout_InputNew( p_aout, p_input );
415 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
416 p_input->fifo = fifo;
418 vlc_mutex_unlock( &p_aout->mixer_lock );
421 /* We don't care if someone changes the start date behind our back after
422 * this. We'll deal with that when pushing the buffer, and compensate
423 * with the next incoming buffer. */
424 vlc_mutex_lock( &p_aout->input_fifos_lock );
425 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
426 vlc_mutex_unlock( &p_aout->input_fifos_lock );
428 if ( start_date != 0 && start_date < mdate() )
430 /* The decoder is _very_ late. This can only happen if the user
431 * pauses the stream (or if the decoder is buggy, which cannot
433 msg_Warn( p_aout, "computed PTS is out of range ("I64Fd"), "
434 "clearing out", mdate() - start_date );
435 vlc_mutex_lock( &p_aout->input_fifos_lock );
436 aout_FifoSet( p_aout, &p_input->fifo, 0 );
437 p_input->p_first_byte_to_mix = NULL;
438 vlc_mutex_unlock( &p_aout->input_fifos_lock );
439 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
440 msg_Warn( p_aout, "timing screwed, stopping resampling" );
441 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
442 if ( p_input->i_nb_resamplers != 0 )
444 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
445 p_input->pp_resamplers[0]->b_continuity = VLC_FALSE;
448 if( p_input->p_input_thread )
450 stats_UpdateInteger( p_input->p_input_thread, "lost_abuffers", 1 );
454 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
456 /* The decoder gives us f*cked up PTS. It's its business, but we
457 * can't present it anyway, so drop the buffer. */
458 msg_Warn( p_aout, "PTS is out of range ("I64Fd"), dropping buffer",
459 mdate() - p_buffer->start_date );
460 if( p_input->p_input_thread )
462 stats_UpdateInteger( p_input->p_input_thread, "lost_abuffers", 1 );
464 aout_BufferFree( p_buffer );
465 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
466 if ( p_input->i_nb_resamplers != 0 )
468 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
469 p_input->pp_resamplers[0]->b_continuity = VLC_FALSE;
474 /* If the audio drift is too big then it's not worth trying to resample
476 if ( start_date != 0 &&
477 ( start_date < p_buffer->start_date - 3 * AOUT_PTS_TOLERANCE ) )
479 msg_Warn( p_aout, "audio drift is too big ("I64Fd"), clearing out",
480 start_date - p_buffer->start_date );
481 vlc_mutex_lock( &p_aout->input_fifos_lock );
482 aout_FifoSet( p_aout, &p_input->fifo, 0 );
483 p_input->p_first_byte_to_mix = NULL;
484 vlc_mutex_unlock( &p_aout->input_fifos_lock );
485 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
486 msg_Warn( p_aout, "timing screwed, stopping resampling" );
487 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
488 if ( p_input->i_nb_resamplers != 0 )
490 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
491 p_input->pp_resamplers[0]->b_continuity = VLC_FALSE;
495 else if ( start_date != 0 &&
496 ( start_date > p_buffer->start_date + 3 * AOUT_PTS_TOLERANCE ) )
498 msg_Warn( p_aout, "audio drift is too big ("I64Fd"), dropping buffer",
499 start_date - p_buffer->start_date );
500 aout_BufferFree( p_buffer );
501 if( p_input->p_input_thread )
503 stats_UpdateInteger( p_input->p_input_thread, "lost_abuffers", 1 );
508 if ( start_date == 0 ) start_date = p_buffer->start_date;
510 /* Run pre-filters. */
512 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
515 /* Run the resampler if needed.
516 * We first need to calculate the output rate of this resampler. */
517 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
518 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
519 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
520 p_input->i_nb_resamplers > 0 )
522 /* Can happen in several circumstances :
523 * 1. A problem at the input (clock drift)
524 * 2. A small pause triggered by the user
525 * 3. Some delay in the output stage, causing a loss of lip
527 * Solution : resample the buffer to avoid a scratch.
529 mtime_t drift = p_buffer->start_date - start_date;
531 p_input->i_resamp_start_date = mdate();
532 p_input->i_resamp_start_drift = (int)drift;
535 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
537 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
539 msg_Warn( p_aout, "buffer is "I64Fd" %s, triggering %ssampling",
540 drift > 0 ? drift : -drift,
541 drift > 0 ? "in advance" : "late",
542 drift > 0 ? "down" : "up");
545 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
547 /* Resampling has been triggered previously (because of dates
548 * mismatch). We want the resampling to happen progressively so
549 * it isn't too audible to the listener. */
551 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
553 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
557 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
560 /* Check if everything is back to normal, in which case we can stop the
562 if( p_input->pp_resamplers[0]->input.i_rate ==
563 p_input->input.i_rate )
565 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
566 msg_Warn( p_aout, "resampling stopped after "I64Fi" usec "
568 mdate() - p_input->i_resamp_start_date,
569 p_buffer->start_date - start_date);
571 else if( abs( (int)(p_buffer->start_date - start_date) ) <
572 abs( p_input->i_resamp_start_drift ) / 2 )
574 /* if we reduced the drift from half, then it is time to switch
575 * back the resampling direction. */
576 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
577 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
579 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
580 p_input->i_resamp_start_drift = 0;
582 else if( p_input->i_resamp_start_drift &&
583 ( abs( (int)(p_buffer->start_date - start_date) ) >
584 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
586 /* If the drift is increasing and not decreasing, than something
587 * is bad. We'd better stop the resampling right now. */
588 msg_Warn( p_aout, "timing screwed, stopping resampling" );
589 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
590 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
594 /* Adding the start date will be managed by aout_FifoPush(). */
595 p_buffer->end_date = start_date +
596 (p_buffer->end_date - p_buffer->start_date);
597 p_buffer->start_date = start_date;
599 /* Actually run the resampler now. */
600 if ( p_input->i_nb_resamplers > 0 )
602 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
603 p_input->i_nb_resamplers,
607 vlc_mutex_lock( &p_aout->input_fifos_lock );
608 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
609 vlc_mutex_unlock( &p_aout->input_fifos_lock );
614 /*****************************************************************************
616 *****************************************************************************/
618 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
619 char * psz_error_message )
622 msg_Err( p_aout, "couldn't set an input pipeline" );
625 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
626 p_input->i_nb_filters );
627 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
628 p_input->i_nb_resamplers );
629 aout_FifoDestroy( p_aout, &p_input->fifo );
630 var_Destroy( p_aout, "visual" );
631 var_Destroy( p_aout, "equalizer" );
632 var_Destroy( p_aout, "audio-filter" );
633 var_Destroy( p_aout, "audio-visual" );
636 p_input->b_error = 1;
639 static int ChangeFiltersString( aout_instance_t * p_aout, char* psz_variable,
640 char *psz_name, vlc_bool_t b_add )
645 var_Get( p_aout, psz_variable, &val );
647 if( !val.psz_string ) val.psz_string = strdup("");
649 psz_parser = strstr( val.psz_string, psz_name );
655 psz_parser = val.psz_string;
656 asprintf( &val.psz_string, (*val.psz_string) ? "%s:%s" : "%s%s",
657 val.psz_string, psz_name );
669 memmove( psz_parser, psz_parser + strlen(psz_name) +
670 (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
671 strlen(psz_parser + strlen(psz_name)) + 1 );
675 free( val.psz_string );
680 var_Set( p_aout, psz_variable, val );
681 free( val.psz_string );
685 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
686 vlc_value_t oldval, vlc_value_t newval, void *p_data )
688 aout_instance_t *p_aout = (aout_instance_t *)p_this;
689 char *psz_mode = newval.psz_string;
693 if( !psz_mode || !*psz_mode )
695 ChangeFiltersString( p_aout, "audio-visual", "goom", VLC_FALSE );
696 ChangeFiltersString( p_aout, "audio-visual", "visual", VLC_FALSE );
697 ChangeFiltersString( p_aout, "audio-visual", "galaktos", VLC_FALSE );
701 if( !strcmp( "goom", psz_mode ) )
703 ChangeFiltersString( p_aout, "audio-visual", "visual", VLC_FALSE );
704 ChangeFiltersString( p_aout, "audio-visual", "goom", VLC_TRUE );
705 ChangeFiltersString( p_aout, "audio-visual", "galaktos", VLC_FALSE);
707 else if( !strcmp( "galaktos", psz_mode ) )
709 ChangeFiltersString( p_aout, "audio-visual", "visual", VLC_FALSE );
710 ChangeFiltersString( p_aout, "audio-visual", "goom", VLC_FALSE );
711 ChangeFiltersString( p_aout, "audio-visual", "galaktos", VLC_TRUE );
715 val.psz_string = psz_mode;
716 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
717 var_Set( p_aout, "effect-list", val );
719 ChangeFiltersString( p_aout, "audio-visual", "goom", VLC_FALSE );
720 ChangeFiltersString( p_aout, "audio-visual", "visual", VLC_TRUE );
721 ChangeFiltersString( p_aout, "audio-visual", "galaktos", VLC_FALSE);
726 for( i = 0; i < p_aout->i_nb_inputs; i++ )
728 p_aout->pp_inputs[i]->b_restart = VLC_TRUE;
734 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
735 vlc_value_t oldval, vlc_value_t newval, void *p_data )
737 aout_instance_t *p_aout = (aout_instance_t *)p_this;
738 char *psz_mode = newval.psz_string;
743 if( !psz_mode || !*psz_mode )
745 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
750 val.psz_string = psz_mode;
751 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
752 var_Set( p_aout, "equalizer-preset", val );
753 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
761 for( i = 0; i < p_aout->i_nb_inputs; i++ )
763 p_aout->pp_inputs[i]->b_restart = VLC_TRUE;