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 *****************************************************************************/
34 #include <vlc_common.h>
41 #include <vlc_input.h>
42 #include <vlc_vout.h> /* for vout_Request */
47 #include "aout_internal.h"
49 #define AOUT_ASSERT_MIXER_LOCKED vlc_assert_locked( &p_aout->mixer_lock )
50 #define AOUT_ASSERT_INPUT_LOCKED vlc_assert_locked( &p_input->lock )
52 static void inputFailure( aout_instance_t *, aout_input_t *, const char * );
53 static void inputDrop( aout_input_t *, aout_buffer_t * );
54 static void inputResamplingStop( aout_input_t *p_input );
56 static int VisualizationCallback( vlc_object_t *, char const *,
57 vlc_value_t, vlc_value_t, void * );
58 static int EqualizerCallback( vlc_object_t *, char const *,
59 vlc_value_t, vlc_value_t, void * );
60 static int ReplayGainCallback( vlc_object_t *, char const *,
61 vlc_value_t, vlc_value_t, void * );
62 static void ReplayGainSelect( aout_instance_t *, aout_input_t * );
64 static vout_thread_t *RequestVout( void *,
65 vout_thread_t *, video_format_t *, bool );
66 static vout_thread_t *RequestVoutFromFilter( void *,
67 vout_thread_t *, video_format_t *, bool );
69 /*****************************************************************************
70 * aout_InputNew : allocate a new input and rework the filter pipeline
71 *****************************************************************************/
72 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t *p_request_vout )
74 audio_sample_format_t chain_input_format;
75 audio_sample_format_t chain_output_format;
76 vlc_value_t val, text;
77 char *psz_filters, *psz_visual, *psz_scaletempo;
80 aout_FormatPrint( p_aout, "input", &p_input->input );
82 p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
85 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->mixer_format.i_rate );
86 p_input->mixer.begin = NULL;
91 p_input->request_vout = *p_request_vout;
95 p_input->request_vout.pf_request_vout = RequestVout;
96 p_input->request_vout.p_private = p_aout;
99 /* Prepare format structure */
100 chain_input_format = p_input->input;
101 chain_output_format = p_aout->mixer_format;
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 libprojectM plugin */
130 if( module_exists( "projectm" ) )
132 val.psz_string = (char*)"projectm"; text.psz_string = (char*)"projectM";
133 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
136 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
138 var_SetString( p_aout, "visual", val.psz_string );
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 psz_filters = var_GetString( p_aout, "audio-filter" );
234 psz_visual = var_GetString( p_aout, "audio-visual");
235 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
237 p_input->b_recycle_vout = psz_visual && *psz_visual;
239 /* parse user filter lists */
240 char *const ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
241 p_input->p_playback_rate_filter = NULL;
243 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
245 char *psz_next = NULL;
246 char *psz_parser = ppsz_array[i_visual];
248 if( psz_parser == NULL || !*psz_parser )
251 while( psz_parser && *psz_parser )
253 aout_filter_t * p_filter = NULL;
255 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
257 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
261 while( *psz_parser == ' ' && *psz_parser == ':' )
265 if( ( psz_next = strchr( psz_parser , ':' ) ) )
269 if( *psz_parser =='\0' )
274 /* Create a VLC object */
275 static const char typename[] = "audio filter";
276 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
277 VLC_OBJECT_GENERIC, typename );
278 if( p_filter == NULL )
280 msg_Err( p_aout, "cannot add user filter %s (skipped)",
282 psz_parser = psz_next;
286 vlc_object_set_name( p_filter, psz_parser );
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;
297 memcpy( &p_filter->input, &chain_output_format,
298 sizeof(audio_sample_format_t) );
299 memcpy( &p_filter->output, &chain_output_format,
300 sizeof(audio_sample_format_t) );
303 /* try to find the requested filter */
304 if( i_visual == 2 ) /* this can only be a visualization module */
306 p_filter->p_module = module_need( p_filter, "visualization",
309 else /* this can be a audio filter module as well as a visualization module */
311 p_filter->p_module = module_need( p_filter, "audio filter",
314 if ( p_filter->p_module == NULL )
316 /* if the filter requested a special format, retry */
317 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
318 &chain_input_format )
319 && AOUT_FMTS_IDENTICAL( &p_filter->output,
320 &chain_output_format ) ) )
322 aout_FormatPrepare( &p_filter->input );
323 aout_FormatPrepare( &p_filter->output );
324 p_filter->p_module = module_need( p_filter,
328 /* try visual filters */
331 memcpy( &p_filter->input, &chain_output_format,
332 sizeof(audio_sample_format_t) );
333 memcpy( &p_filter->output, &chain_output_format,
334 sizeof(audio_sample_format_t) );
335 p_filter->p_module = module_need( p_filter,
343 if ( p_filter->p_module == NULL )
345 msg_Err( p_aout, "cannot add user filter %s (skipped)",
348 free( p_filter->p_owner );
349 vlc_object_detach( p_filter );
350 vlc_object_release( p_filter );
352 psz_parser = psz_next;
356 /* complete the filter chain if necessary */
357 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
359 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
360 &p_input->i_nb_filters,
362 &p_filter->input ) < 0 )
364 msg_Err( p_aout, "cannot add user filter %s (skipped)",
367 module_unneed( p_filter, p_filter->p_module );
368 free( p_filter->p_owner );
369 vlc_object_detach( p_filter );
370 vlc_object_release( p_filter );
372 psz_parser = psz_next;
378 p_filter->b_continuity = false;
379 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
380 memcpy( &chain_input_format, &p_filter->output,
381 sizeof( audio_sample_format_t ) );
383 if( i_visual == 0 ) /* scaletempo */
384 p_input->p_playback_rate_filter = p_filter;
386 /* next filter if any */
387 psz_parser = psz_next;
392 free( psz_scaletempo );
394 /* complete the filter chain if necessary */
395 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
397 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
398 &p_input->i_nb_filters,
400 &chain_output_format ) < 0 )
402 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
407 /* Prepare hints for the buffer allocator. */
408 p_input->input_alloc.b_alloc = true;
409 p_input->input_alloc.i_bytes_per_sec = -1;
411 /* Create resamplers. */
412 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer_format ) )
414 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
415 p_aout->mixer_format.i_rate)
416 * (100 + AOUT_MAX_RESAMPLING)) / 100;
417 if ( chain_output_format.i_rate == p_aout->mixer_format.i_rate )
419 /* Just in case... */
420 chain_output_format.i_rate++;
422 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
423 &p_input->i_nb_resamplers,
424 &chain_output_format,
425 &p_aout->mixer_format ) < 0 )
427 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
431 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
432 p_input->i_nb_resamplers,
433 &p_input->input_alloc );
434 p_input->input_alloc.b_alloc = true;
436 /* Setup the initial rate of the resampler */
437 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
439 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
441 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
443 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
446 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
447 p_input->i_nb_filters,
448 &p_input->input_alloc );
449 p_input->input_alloc.b_alloc = true;
451 /* i_bytes_per_sec is still == -1 if no filters */
452 p_input->input_alloc.i_bytes_per_sec = __MAX(
453 p_input->input_alloc.i_bytes_per_sec,
454 (int)(p_input->input.i_bytes_per_frame
455 * p_input->input.i_rate
456 / p_input->input.i_frame_length) );
458 ReplayGainSelect( p_aout, p_input );
461 p_input->b_error = false;
462 p_input->b_restart = false;
463 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
468 /*****************************************************************************
469 * aout_InputDelete : delete an input
470 *****************************************************************************
471 * This function must be entered with the mixer lock.
472 *****************************************************************************/
473 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
475 AOUT_ASSERT_MIXER_LOCKED;
476 if ( p_input->b_error )
479 /* XXX We need to update b_recycle_vout before calling aout_FiltersDestroyPipeline.
480 * FIXME They can be a race condition if audio-visual is updated between
481 * aout_InputDelete and aout_InputNew.
483 char *psz_visual = var_GetString( p_aout, "audio-visual");
484 p_input->b_recycle_vout = psz_visual && *psz_visual;
487 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
488 p_input->i_nb_filters );
489 p_input->i_nb_filters = 0;
490 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
491 p_input->i_nb_resamplers );
492 p_input->i_nb_resamplers = 0;
493 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
498 /*****************************************************************************
499 * aout_InputPlay : play a buffer
500 *****************************************************************************
501 * This function must be entered with the input lock.
502 *****************************************************************************/
503 /* XXX Do not activate it !! */
504 //#define AOUT_PROCESS_BEFORE_CHEKS
505 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
506 aout_buffer_t * p_buffer, int i_input_rate )
509 AOUT_ASSERT_INPUT_LOCKED;
511 if( p_input->b_restart )
514 uint8_t *p_first_byte_to_mix;
516 mtime_t i_pause_date;
518 aout_lock_mixer( p_aout );
519 aout_lock_input_fifos( p_aout );
521 /* A little trick to avoid loosing our input fifo and properties */
523 p_first_byte_to_mix = p_input->mixer.begin;
524 fifo = p_input->mixer.fifo;
525 b_paused = p_input->b_paused;
526 i_pause_date = p_input->i_pause_date;
528 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->mixer_format.i_rate );
530 aout_InputDelete( p_aout, p_input );
532 aout_InputNew( p_aout, p_input, &p_input->request_vout );
533 p_input->mixer.begin = p_first_byte_to_mix;
534 p_input->mixer.fifo = fifo;
535 p_input->b_paused = b_paused;
536 p_input->i_pause_date = i_pause_date;
538 aout_unlock_input_fifos( p_aout );
539 aout_unlock_mixer( p_aout );
542 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
544 inputDrop( p_input, p_buffer );
548 #ifdef AOUT_PROCESS_BEFORE_CHEKS
549 /* Run pre-filters. */
550 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
553 /* Actually run the resampler now. */
554 if ( p_input->i_nb_resamplers > 0 )
556 const mtime_t i_date = p_buffer->start_date;
557 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
558 p_input->i_nb_resamplers,
562 if( p_buffer->i_nb_samples <= 0 )
564 aout_BufferFree( p_buffer );
569 /* Handle input rate change, but keep drift correction */
570 if( i_input_rate != p_input->i_last_input_rate )
572 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
573 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
574 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
575 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
577 p_input->i_last_input_rate = i_input_rate;
580 /* We don't care if someone changes the start date behind our back after
581 * this. We'll deal with that when pushing the buffer, and compensate
582 * with the next incoming buffer. */
583 aout_lock_input_fifos( p_aout );
584 start_date = aout_FifoNextStart( p_aout, &p_input->mixer.fifo );
585 aout_unlock_input_fifos( p_aout );
587 if ( start_date != 0 && start_date < mdate() )
589 /* The decoder is _very_ late. This can only happen if the user
590 * pauses the stream (or if the decoder is buggy, which cannot
592 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
593 "clearing out", mdate() - start_date );
594 aout_lock_input_fifos( p_aout );
595 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
596 p_input->mixer.begin = NULL;
597 aout_unlock_input_fifos( p_aout );
598 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
599 msg_Warn( p_aout, "timing screwed, stopping resampling" );
600 inputResamplingStop( p_input );
604 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
606 /* The decoder gives us f*cked up PTS. It's its business, but we
607 * can't present it anyway, so drop the buffer. */
608 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
609 mdate() - p_buffer->start_date );
611 inputDrop( p_input, p_buffer );
612 inputResamplingStop( p_input );
616 /* If the audio drift is too big then it's not worth trying to resample
618 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
619 if ( start_date != 0 &&
620 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
622 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
623 start_date - p_buffer->start_date );
624 aout_lock_input_fifos( p_aout );
625 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
626 p_input->mixer.begin = NULL;
627 aout_unlock_input_fifos( p_aout );
628 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
629 msg_Warn( p_aout, "timing screwed, stopping resampling" );
630 inputResamplingStop( p_input );
633 else if ( start_date != 0 &&
634 ( start_date > p_buffer->start_date + i_pts_tolerance) )
636 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
637 start_date - p_buffer->start_date );
638 inputDrop( p_input, p_buffer );
642 if ( start_date == 0 ) start_date = p_buffer->start_date;
644 #ifndef AOUT_PROCESS_BEFORE_CHEKS
645 /* Run pre-filters. */
646 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
650 /* Run the resampler if needed.
651 * We first need to calculate the output rate of this resampler. */
652 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
653 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
654 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
655 p_input->i_nb_resamplers > 0 )
657 /* Can happen in several circumstances :
658 * 1. A problem at the input (clock drift)
659 * 2. A small pause triggered by the user
660 * 3. Some delay in the output stage, causing a loss of lip
662 * Solution : resample the buffer to avoid a scratch.
664 mtime_t drift = p_buffer->start_date - start_date;
666 p_input->i_resamp_start_date = mdate();
667 p_input->i_resamp_start_drift = (int)drift;
670 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
672 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
674 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
675 drift > 0 ? drift : -drift,
676 drift > 0 ? "in advance" : "late",
677 drift > 0 ? "down" : "up");
680 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
682 /* Resampling has been triggered previously (because of dates
683 * mismatch). We want the resampling to happen progressively so
684 * it isn't too audible to the listener. */
686 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
688 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
692 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
695 /* Check if everything is back to normal, in which case we can stop the
697 unsigned int i_nominal_rate =
698 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
699 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
700 : p_input->input.i_rate;
701 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
703 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
704 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
705 "(drift: %"PRIi64")",
706 mdate() - p_input->i_resamp_start_date,
707 p_buffer->start_date - start_date);
709 else if( abs( (int)(p_buffer->start_date - start_date) ) <
710 abs( p_input->i_resamp_start_drift ) / 2 )
712 /* if we reduced the drift from half, then it is time to switch
713 * back the resampling direction. */
714 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
715 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
717 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
718 p_input->i_resamp_start_drift = 0;
720 else if( p_input->i_resamp_start_drift &&
721 ( abs( (int)(p_buffer->start_date - start_date) ) >
722 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
724 /* If the drift is increasing and not decreasing, than something
725 * is bad. We'd better stop the resampling right now. */
726 msg_Warn( p_aout, "timing screwed, stopping resampling" );
727 inputResamplingStop( p_input );
731 #ifndef AOUT_PROCESS_BEFORE_CHEKS
732 /* Actually run the resampler now. */
733 if ( p_input->i_nb_resamplers > 0 )
735 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
736 p_input->i_nb_resamplers,
740 if( p_buffer->i_nb_samples <= 0 )
742 aout_BufferFree( p_buffer );
747 /* Adding the start date will be managed by aout_FifoPush(). */
748 p_buffer->end_date = start_date +
749 (p_buffer->end_date - p_buffer->start_date);
750 p_buffer->start_date = start_date;
752 aout_lock_input_fifos( p_aout );
753 aout_FifoPush( p_aout, &p_input->mixer.fifo, p_buffer );
754 aout_unlock_input_fifos( p_aout );
758 /*****************************************************************************
760 *****************************************************************************/
762 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
763 const char * psz_error_message )
766 msg_Err( p_aout, "%s", psz_error_message );
769 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
770 p_input->i_nb_filters );
771 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
772 p_input->i_nb_resamplers );
773 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
774 var_Destroy( p_aout, "visual" );
775 var_Destroy( p_aout, "equalizer" );
776 var_Destroy( p_aout, "audio-filter" );
777 var_Destroy( p_aout, "audio-visual" );
779 var_Destroy( p_aout, "audio-replay-gain-mode" );
780 var_Destroy( p_aout, "audio-replay-gain-default" );
781 var_Destroy( p_aout, "audio-replay-gain-preamp" );
782 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
785 p_input->b_error = 1;
788 static void inputDrop( aout_input_t *p_input, aout_buffer_t *p_buffer )
790 aout_BufferFree( p_buffer );
792 p_input->i_buffer_lost++;
795 static void inputResamplingStop( aout_input_t *p_input )
797 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
798 if( p_input->i_nb_resamplers != 0 )
800 p_input->pp_resamplers[0]->input.i_rate =
801 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
802 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
803 : p_input->input.i_rate;
804 p_input->pp_resamplers[0]->b_continuity = false;
808 static vout_thread_t *RequestVout( void *p_private,
809 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
811 aout_instance_t *p_aout = p_private;
812 VLC_UNUSED(b_recycle);
813 return vout_Request( p_aout, p_vout, p_fmt );
816 static vout_thread_t *RequestVoutFromFilter( void *p_private,
817 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
819 aout_input_t *p_input = p_private;
820 aout_request_vout_t *p_request = &p_input->request_vout;
822 return p_request->pf_request_vout( p_request->p_private,
823 p_vout, p_fmt, p_input->b_recycle_vout && b_recycle );
826 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
827 const char *psz_name, bool b_add )
829 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
830 psz_variable, psz_name, b_add ) ? 1 : 0;
833 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
834 vlc_value_t oldval, vlc_value_t newval, void *p_data )
836 aout_instance_t *p_aout = (aout_instance_t *)p_this;
837 char *psz_mode = newval.psz_string;
838 (void)psz_cmd; (void)oldval; (void)p_data;
840 if( !psz_mode || !*psz_mode )
842 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
843 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
844 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
848 if( !strcmp( "goom", psz_mode ) )
850 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
851 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
852 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
854 else if( !strcmp( "projectm", psz_mode ) )
856 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
857 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
858 ChangeFiltersString( p_aout, "audio-visual", "projectm", true );
862 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
863 var_SetString( p_aout, "effect-list", psz_mode );
865 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
866 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
867 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
872 AoutInputsMarkToRestart( p_aout );
877 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
878 vlc_value_t oldval, vlc_value_t newval, void *p_data )
880 aout_instance_t *p_aout = (aout_instance_t *)p_this;
881 char *psz_mode = newval.psz_string;
883 (void)psz_cmd; (void)oldval; (void)p_data;
885 if( !psz_mode || !*psz_mode )
887 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
892 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
893 var_SetString( p_aout, "equalizer-preset", psz_mode );
894 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
900 AoutInputsMarkToRestart( p_aout );
904 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
905 vlc_value_t oldval, vlc_value_t newval, void *p_data )
907 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
908 VLC_UNUSED(newval); VLC_UNUSED(p_data);
909 aout_instance_t *p_aout = (aout_instance_t *)p_this;
912 aout_lock_mixer( p_aout );
913 for( i = 0; i < p_aout->i_nb_inputs; i++ )
914 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
916 /* Restart the mixer (a trivial mixer may be in use) */
917 if( p_aout->p_mixer )
918 aout_MixerMultiplierSet( p_aout, p_aout->mixer_multiplier );
919 aout_unlock_mixer( p_aout );
924 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
926 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
927 "audio-replay-gain-mode" );
932 p_input->mixer.multiplier = 1.0;
934 if( !psz_replay_gain )
937 /* Find select mode */
938 if( !strcmp( psz_replay_gain, "track" ) )
939 i_mode = AUDIO_REPLAY_GAIN_TRACK;
940 else if( !strcmp( psz_replay_gain, "album" ) )
941 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
943 i_mode = AUDIO_REPLAY_GAIN_MAX;
945 /* If the select mode is not available, prefer the other one */
947 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
949 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
951 if( p_input->replay_gain.pb_gain[i_use] )
957 if( i_use != AUDIO_REPLAY_GAIN_MAX )
958 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
959 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
960 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
963 p_input->mixer.multiplier = pow( 10.0, f_gain / 20.0 );
966 if( p_input->replay_gain.pb_peak[i_use] &&
967 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
968 p_input->replay_gain.pf_peak[i_use] * p_input->mixer.multiplier > 1.0 )
970 p_input->mixer.multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
973 free( psz_replay_gain );