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( aout_filter_t *,
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 )
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;
86 /* Prepare format structure */
87 memcpy( &chain_input_format, &p_input->input,
88 sizeof(audio_sample_format_t) );
89 memcpy( &chain_output_format, &p_aout->mixer.mixer,
90 sizeof(audio_sample_format_t) );
91 chain_output_format.i_rate = p_input->input.i_rate;
92 aout_FormatPrepare( &chain_output_format );
94 /* Now add user filters */
95 if( var_Type( p_aout, "visual" ) == 0 )
97 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
98 text.psz_string = _("Visualizations");
99 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
100 val.psz_string = (char*)""; text.psz_string = _("Disable");
101 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
102 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
103 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
104 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
105 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
106 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
107 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
108 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
109 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
111 /* Look for goom plugin */
112 if( module_exists( "goom" ) )
114 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
115 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
118 /* Look for galaktos plugin */
119 if( module_exists( "galaktos" ) )
121 val.psz_string = (char*)"galaktos"; text.psz_string = (char*)"GaLaktos";
122 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
125 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
127 var_Set( p_aout, "visual", val );
128 free( val.psz_string );
130 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
133 if( var_Type( p_aout, "equalizer" ) == 0 )
135 module_config_t *p_config;
138 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
139 if( p_config && p_config->i_list )
141 var_Create( p_aout, "equalizer",
142 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
143 text.psz_string = _("Equalizer");
144 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
146 val.psz_string = (char*)""; text.psz_string = _("Disable");
147 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
149 for( i = 0; i < p_config->i_list; i++ )
151 val.psz_string = (char *)p_config->ppsz_list[i];
152 text.psz_string = (char *)p_config->ppsz_list_text[i];
153 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
157 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
161 if( var_Type( p_aout, "audio-filter" ) == 0 )
163 var_Create( p_aout, "audio-filter",
164 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
165 text.psz_string = _("Audio filters");
166 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
168 if( var_Type( p_aout, "audio-visual" ) == 0 )
170 var_Create( p_aout, "audio-visual",
171 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
172 text.psz_string = _("Audio visualizations");
173 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
176 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
178 module_config_t *p_config;
181 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
182 if( p_config && p_config->i_list )
184 var_Create( p_aout, "audio-replay-gain-mode",
185 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
187 text.psz_string = _("Replay gain");
188 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
190 for( i = 0; i < p_config->i_list; i++ )
192 val.psz_string = (char *)p_config->ppsz_list[i];
193 text.psz_string = (char *)p_config->ppsz_list_text[i];
194 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
198 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
201 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
203 var_Create( p_aout, "audio-replay-gain-preamp",
204 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
206 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
208 var_Create( p_aout, "audio-replay-gain-default",
209 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
211 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
213 var_Create( p_aout, "audio-replay-gain-peak-protection",
214 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
216 if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
218 var_Create( p_aout, "audio-time-stretch",
219 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
222 var_Get( p_aout, "audio-filter", &val );
223 psz_filters = val.psz_string;
224 var_Get( p_aout, "audio-visual", &val );
225 psz_visual = val.psz_string;
227 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
229 /* parse user filter lists */
230 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
232 char *ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
233 char *psz_next = NULL;
234 char *psz_parser = ppsz_array[i_visual];
236 if( psz_parser == NULL || !*psz_parser )
239 while( psz_parser && *psz_parser )
241 aout_filter_t * p_filter = NULL;
243 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
245 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
249 while( *psz_parser == ' ' && *psz_parser == ':' )
253 if( ( psz_next = strchr( psz_parser , ':' ) ) )
257 if( *psz_parser =='\0' )
262 /* Create a VLC object */
263 static const char typename[] = "audio filter";
264 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
265 VLC_OBJECT_GENERIC, typename );
266 if( p_filter == NULL )
268 msg_Err( p_aout, "cannot add user filter %s (skipped)",
270 psz_parser = psz_next;
274 vlc_object_attach( p_filter , p_aout );
276 p_filter->pf_request_vout = RequestVout;
277 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
278 p_filter->p_owner->p_aout = p_aout;
279 p_filter->p_owner->p_input = p_input;
281 /* try to find the requested filter */
282 if( i_visual == 2 ) /* this can only be a visualization module */
285 memcpy( &p_filter->input, &chain_output_format,
286 sizeof(audio_sample_format_t) );
287 memcpy( &p_filter->output, &chain_output_format,
288 sizeof(audio_sample_format_t) );
290 p_filter->p_module = module_need( p_filter, "visualization",
293 else /* this can be a audio filter module as well as a visualization module */
296 memcpy( &p_filter->input, &chain_input_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, "audio filter",
304 if ( p_filter->p_module == NULL )
306 /* if the filter requested a special format, retry */
307 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
308 &chain_input_format )
309 && AOUT_FMTS_IDENTICAL( &p_filter->output,
310 &chain_output_format ) ) )
312 aout_FormatPrepare( &p_filter->input );
313 aout_FormatPrepare( &p_filter->output );
314 p_filter->p_module = module_need( p_filter,
318 /* try visual filters */
321 memcpy( &p_filter->input, &chain_output_format,
322 sizeof(audio_sample_format_t) );
323 memcpy( &p_filter->output, &chain_output_format,
324 sizeof(audio_sample_format_t) );
325 p_filter->p_module = module_need( p_filter,
333 if ( p_filter->p_module == NULL )
335 msg_Err( p_aout, "cannot add user filter %s (skipped)",
338 free( p_filter->p_owner );
339 vlc_object_detach( p_filter );
340 vlc_object_release( p_filter );
342 psz_parser = psz_next;
346 /* complete the filter chain if necessary */
347 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
349 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
350 &p_input->i_nb_filters,
352 &p_filter->input ) < 0 )
354 msg_Err( p_aout, "cannot add user filter %s (skipped)",
357 module_unneed( p_filter, p_filter->p_module );
358 free( p_filter->p_owner );
359 vlc_object_detach( p_filter );
360 vlc_object_release( p_filter );
362 psz_parser = psz_next;
368 p_filter->b_continuity = false;
369 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
370 memcpy( &chain_input_format, &p_filter->output,
371 sizeof( audio_sample_format_t ) );
373 /* next filter if any */
374 psz_parser = psz_next;
379 free( psz_scaletempo );
381 /* complete the filter chain if necessary */
382 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
384 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
385 &p_input->i_nb_filters,
387 &chain_output_format ) < 0 )
389 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
394 /* Prepare hints for the buffer allocator. */
395 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
396 p_input->input_alloc.i_bytes_per_sec = -1;
398 /* Create resamplers. */
399 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
401 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
402 p_aout->mixer.mixer.i_rate)
403 * (100 + AOUT_MAX_RESAMPLING)) / 100;
404 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
406 /* Just in case... */
407 chain_output_format.i_rate++;
409 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
410 &p_input->i_nb_resamplers,
411 &chain_output_format,
412 &p_aout->mixer.mixer ) < 0 )
414 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
418 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
419 p_input->i_nb_resamplers,
420 &p_input->input_alloc );
421 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
423 /* Setup the initial rate of the resampler */
424 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
426 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
428 p_input->p_playback_rate_filter = NULL;
429 for( int i = 0; i < p_input->i_nb_filters; i++ )
431 aout_filter_t *p_filter = p_input->pp_filters[i];
432 if( strcmp( "scaletempo", p_filter->psz_object_name ) == 0 )
434 p_input->p_playback_rate_filter = p_filter;
438 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
440 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
443 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
444 p_input->i_nb_filters,
445 &p_input->input_alloc );
446 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
448 /* i_bytes_per_sec is still == -1 if no filters */
449 p_input->input_alloc.i_bytes_per_sec = __MAX(
450 p_input->input_alloc.i_bytes_per_sec,
451 (int)(p_input->input.i_bytes_per_frame
452 * p_input->input.i_rate
453 / p_input->input.i_frame_length) );
455 ReplayGainSelect( p_aout, p_input );
458 p_input->b_error = false;
459 p_input->b_restart = false;
460 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
465 /*****************************************************************************
466 * aout_InputDelete : delete an input
467 *****************************************************************************
468 * This function must be entered with the mixer lock.
469 *****************************************************************************/
470 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
472 AOUT_ASSERT_MIXER_LOCKED;
473 if ( p_input->b_error ) return 0;
475 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
476 p_input->i_nb_filters );
477 p_input->i_nb_filters = 0;
478 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
479 p_input->i_nb_resamplers );
480 p_input->i_nb_resamplers = 0;
481 aout_FifoDestroy( p_aout, &p_input->fifo );
486 /*****************************************************************************
487 * aout_InputPlay : play a buffer
488 *****************************************************************************
489 * This function must be entered with the input lock.
490 *****************************************************************************/
491 /* XXX Do not activate it !! */
492 //#define AOUT_PROCESS_BEFORE_CHEKS
493 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
494 aout_buffer_t * p_buffer, int i_input_rate )
497 AOUT_ASSERT_INPUT_LOCKED;
499 if( p_input->b_restart )
502 uint8_t *p_first_byte_to_mix;
504 mtime_t i_pause_date;
506 aout_lock_mixer( p_aout );
507 aout_lock_input_fifos( p_aout );
509 /* A little trick to avoid loosing our input fifo and properties */
511 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
512 fifo = p_input->fifo;
513 b_paused = p_input->b_paused;
514 i_pause_date = p_input->i_pause_date;
516 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
518 aout_InputDelete( p_aout, p_input );
520 aout_InputNew( p_aout, p_input );
521 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
522 p_input->fifo = fifo;
523 p_input->b_paused = b_paused;
524 p_input->i_pause_date = i_pause_date;
526 aout_unlock_input_fifos( p_aout );
527 aout_unlock_mixer( p_aout );
530 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
532 inputDrop( p_aout, p_input, p_buffer );
536 #ifdef AOUT_PROCESS_BEFORE_CHEKS
537 /* Run pre-filters. */
538 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
541 /* Actually run the resampler now. */
542 if ( p_input->i_nb_resamplers > 0 )
544 const mtime_t i_date = p_buffer->start_date;
545 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
546 p_input->i_nb_resamplers,
550 if( p_buffer->i_nb_samples <= 0 )
552 aout_BufferFree( p_buffer );
557 /* Handle input rate change, but keep drift correction */
558 if( i_input_rate != p_input->i_last_input_rate )
560 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
561 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
562 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
563 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
565 p_input->i_last_input_rate = i_input_rate;
568 /* We don't care if someone changes the start date behind our back after
569 * this. We'll deal with that when pushing the buffer, and compensate
570 * with the next incoming buffer. */
571 aout_lock_input_fifos( p_aout );
572 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
573 aout_unlock_input_fifos( p_aout );
575 if ( start_date != 0 && start_date < mdate() )
577 /* The decoder is _very_ late. This can only happen if the user
578 * pauses the stream (or if the decoder is buggy, which cannot
580 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
581 "clearing out", mdate() - start_date );
582 aout_lock_input_fifos( p_aout );
583 aout_FifoSet( p_aout, &p_input->fifo, 0 );
584 p_input->p_first_byte_to_mix = NULL;
585 aout_unlock_input_fifos( p_aout );
586 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
587 msg_Warn( p_aout, "timing screwed, stopping resampling" );
588 inputResamplingStop( p_input );
592 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
594 /* The decoder gives us f*cked up PTS. It's its business, but we
595 * can't present it anyway, so drop the buffer. */
596 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
597 mdate() - p_buffer->start_date );
599 inputDrop( p_aout, p_input, p_buffer );
600 inputResamplingStop( p_input );
604 /* If the audio drift is too big then it's not worth trying to resample
606 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
607 if ( start_date != 0 &&
608 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
610 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
611 start_date - p_buffer->start_date );
612 aout_lock_input_fifos( p_aout );
613 aout_FifoSet( p_aout, &p_input->fifo, 0 );
614 p_input->p_first_byte_to_mix = NULL;
615 aout_unlock_input_fifos( p_aout );
616 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
617 msg_Warn( p_aout, "timing screwed, stopping resampling" );
618 inputResamplingStop( p_input );
621 else if ( start_date != 0 &&
622 ( start_date > p_buffer->start_date + i_pts_tolerance) )
624 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
625 start_date - p_buffer->start_date );
626 inputDrop( p_aout, p_input, p_buffer );
630 if ( start_date == 0 ) start_date = p_buffer->start_date;
632 #ifndef AOUT_PROCESS_BEFORE_CHEKS
633 /* Run pre-filters. */
634 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
638 /* Run the resampler if needed.
639 * We first need to calculate the output rate of this resampler. */
640 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
641 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
642 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
643 p_input->i_nb_resamplers > 0 )
645 /* Can happen in several circumstances :
646 * 1. A problem at the input (clock drift)
647 * 2. A small pause triggered by the user
648 * 3. Some delay in the output stage, causing a loss of lip
650 * Solution : resample the buffer to avoid a scratch.
652 mtime_t drift = p_buffer->start_date - start_date;
654 p_input->i_resamp_start_date = mdate();
655 p_input->i_resamp_start_drift = (int)drift;
658 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
660 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
662 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
663 drift > 0 ? drift : -drift,
664 drift > 0 ? "in advance" : "late",
665 drift > 0 ? "down" : "up");
668 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
670 /* Resampling has been triggered previously (because of dates
671 * mismatch). We want the resampling to happen progressively so
672 * it isn't too audible to the listener. */
674 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
676 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
680 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
683 /* Check if everything is back to normal, in which case we can stop the
685 unsigned int i_nominal_rate =
686 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
687 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
688 : p_input->input.i_rate;
689 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
691 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
692 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
693 "(drift: %"PRIi64")",
694 mdate() - p_input->i_resamp_start_date,
695 p_buffer->start_date - start_date);
697 else if( abs( (int)(p_buffer->start_date - start_date) ) <
698 abs( p_input->i_resamp_start_drift ) / 2 )
700 /* if we reduced the drift from half, then it is time to switch
701 * back the resampling direction. */
702 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
703 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
705 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
706 p_input->i_resamp_start_drift = 0;
708 else if( p_input->i_resamp_start_drift &&
709 ( abs( (int)(p_buffer->start_date - start_date) ) >
710 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
712 /* If the drift is increasing and not decreasing, than something
713 * is bad. We'd better stop the resampling right now. */
714 msg_Warn( p_aout, "timing screwed, stopping resampling" );
715 inputResamplingStop( p_input );
719 #ifndef AOUT_PROCESS_BEFORE_CHEKS
720 /* Actually run the resampler now. */
721 if ( p_input->i_nb_resamplers > 0 )
723 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
724 p_input->i_nb_resamplers,
728 if( p_buffer->i_nb_samples <= 0 )
730 aout_BufferFree( p_buffer );
735 /* Adding the start date will be managed by aout_FifoPush(). */
736 p_buffer->end_date = start_date +
737 (p_buffer->end_date - p_buffer->start_date);
738 p_buffer->start_date = start_date;
740 aout_lock_input_fifos( p_aout );
741 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
742 aout_unlock_input_fifos( p_aout );
746 /*****************************************************************************
748 *****************************************************************************/
750 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
751 const char * psz_error_message )
754 msg_Err( p_aout, "%s", psz_error_message );
757 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
758 p_input->i_nb_filters );
759 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
760 p_input->i_nb_resamplers );
761 aout_FifoDestroy( p_aout, &p_input->fifo );
762 var_Destroy( p_aout, "visual" );
763 var_Destroy( p_aout, "equalizer" );
764 var_Destroy( p_aout, "audio-filter" );
765 var_Destroy( p_aout, "audio-visual" );
767 var_Destroy( p_aout, "audio-replay-gain-mode" );
768 var_Destroy( p_aout, "audio-replay-gain-default" );
769 var_Destroy( p_aout, "audio-replay-gain-preamp" );
770 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
773 p_input->b_error = 1;
776 static void inputDrop( aout_instance_t *p_aout, aout_input_t *p_input, aout_buffer_t *p_buffer )
778 aout_BufferFree( p_buffer );
780 p_input->i_buffer_lost++;
783 static void inputResamplingStop( aout_input_t *p_input )
785 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
786 if( p_input->i_nb_resamplers != 0 )
788 p_input->pp_resamplers[0]->input.i_rate =
789 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
790 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
791 : p_input->input.i_rate;
792 p_input->pp_resamplers[0]->b_continuity = false;
796 static vout_thread_t *RequestVout( aout_filter_t *p_filter,
797 vout_thread_t *p_vout, video_format_t *p_fmt )
800 return vout_Request( p_filter, p_vout, p_fmt );
803 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
804 const char *psz_name, bool b_add )
806 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
807 psz_variable, psz_name, b_add ) ? 1 : 0;
810 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
811 vlc_value_t oldval, vlc_value_t newval, void *p_data )
813 aout_instance_t *p_aout = (aout_instance_t *)p_this;
814 char *psz_mode = newval.psz_string;
816 (void)psz_cmd; (void)oldval; (void)p_data;
818 if( !psz_mode || !*psz_mode )
820 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
821 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
822 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false );
826 if( !strcmp( "goom", psz_mode ) )
828 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
829 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
830 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
832 else if( !strcmp( "galaktos", psz_mode ) )
834 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
835 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
836 ChangeFiltersString( p_aout, "audio-visual", "galaktos", true );
840 val.psz_string = psz_mode;
841 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
842 var_Set( p_aout, "effect-list", val );
844 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
845 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
846 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
851 AoutInputsMarkToRestart( p_aout );
856 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
857 vlc_value_t oldval, vlc_value_t newval, void *p_data )
859 aout_instance_t *p_aout = (aout_instance_t *)p_this;
860 char *psz_mode = newval.psz_string;
863 (void)psz_cmd; (void)oldval; (void)p_data;
865 if( !psz_mode || !*psz_mode )
867 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
872 val.psz_string = psz_mode;
873 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
874 var_Set( p_aout, "equalizer-preset", val );
875 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
882 AoutInputsMarkToRestart( p_aout );
886 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
887 vlc_value_t oldval, vlc_value_t newval, void *p_data )
889 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
890 VLC_UNUSED(newval); VLC_UNUSED(p_data);
891 aout_instance_t *p_aout = (aout_instance_t *)p_this;
894 aout_lock_mixer( p_aout );
895 for( i = 0; i < p_aout->i_nb_inputs; i++ )
896 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
898 /* Restart the mixer (a trivial mixer may be in use) */
899 aout_MixerMultiplierSet( p_aout, p_aout->mixer.f_multiplier );
900 aout_unlock_mixer( p_aout );
905 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
907 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
908 "audio-replay-gain-mode" );
913 p_input->f_multiplier = 1.0;
915 if( !psz_replay_gain )
918 /* Find select mode */
919 if( !strcmp( psz_replay_gain, "track" ) )
920 i_mode = AUDIO_REPLAY_GAIN_TRACK;
921 else if( !strcmp( psz_replay_gain, "album" ) )
922 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
924 i_mode = AUDIO_REPLAY_GAIN_MAX;
926 /* If the select mode is not available, prefer the other one */
928 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
930 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
932 if( p_input->replay_gain.pb_gain[i_use] )
938 if( i_use != AUDIO_REPLAY_GAIN_MAX )
939 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
940 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
941 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
944 p_input->f_multiplier = pow( 10.0, f_gain / 20.0 );
947 if( p_input->replay_gain.pb_peak[i_use] &&
948 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
949 p_input->replay_gain.pf_peak[i_use] * p_input->f_multiplier > 1.0 )
951 p_input->f_multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
954 free( psz_replay_gain );