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 */
46 #include "aout_internal.h"
48 /** FIXME: Ugly but needed to access the counters */
49 #include "input/input_internal.h"
51 #define AOUT_ASSERT_MIXER_LOCKED vlc_assert_locked( &p_aout->mixer_lock )
52 #define AOUT_ASSERT_INPUT_LOCKED vlc_assert_locked( &p_input->lock )
54 static void inputFailure( aout_instance_t *, aout_input_t *, const char * );
55 static void inputDrop( aout_instance_t *, aout_input_t *, aout_buffer_t * );
56 static void inputResamplingStop( aout_input_t *p_input );
58 static int VisualizationCallback( vlc_object_t *, char const *,
59 vlc_value_t, vlc_value_t, void * );
60 static int EqualizerCallback( vlc_object_t *, char const *,
61 vlc_value_t, vlc_value_t, void * );
62 static int ReplayGainCallback( vlc_object_t *, char const *,
63 vlc_value_t, vlc_value_t, void * );
64 static void ReplayGainSelect( aout_instance_t *, aout_input_t * );
65 /*****************************************************************************
66 * aout_InputNew : allocate a new input and rework the filter pipeline
67 *****************************************************************************/
68 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
70 audio_sample_format_t chain_input_format;
71 audio_sample_format_t chain_output_format;
72 vlc_value_t val, text;
73 char *psz_filters, *psz_visual, *psz_scaletempo;
76 aout_FormatPrint( p_aout, "input", &p_input->input );
78 p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
81 aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
82 p_input->p_first_byte_to_mix = NULL;
84 /* Prepare format structure */
85 memcpy( &chain_input_format, &p_input->input,
86 sizeof(audio_sample_format_t) );
87 memcpy( &chain_output_format, &p_aout->mixer.mixer,
88 sizeof(audio_sample_format_t) );
89 chain_output_format.i_rate = p_input->input.i_rate;
90 aout_FormatPrepare( &chain_output_format );
92 /* Now add user filters */
93 if( var_Type( p_aout, "visual" ) == 0 )
95 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
96 text.psz_string = _("Visualizations");
97 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
98 val.psz_string = (char*)""; text.psz_string = _("Disable");
99 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
100 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
101 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
102 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
103 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
104 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
105 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
106 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
107 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
109 /* Look for goom plugin */
110 if( module_Exists( VLC_OBJECT(p_aout), "goom" ) )
112 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
113 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
116 /* Look for galaktos plugin */
117 if( module_Exists( VLC_OBJECT(p_aout), "galaktos" ) )
119 val.psz_string = (char*)"galaktos"; text.psz_string = (char*)"GaLaktos";
120 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
123 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
125 var_Set( p_aout, "visual", val );
126 free( val.psz_string );
128 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
131 if( var_Type( p_aout, "equalizer" ) == 0 )
133 module_config_t *p_config;
136 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
137 if( p_config && p_config->i_list )
139 var_Create( p_aout, "equalizer",
140 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
141 text.psz_string = _("Equalizer");
142 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
144 val.psz_string = (char*)""; text.psz_string = _("Disable");
145 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
147 for( i = 0; i < p_config->i_list; i++ )
149 val.psz_string = (char *)p_config->ppsz_list[i];
150 text.psz_string = (char *)p_config->ppsz_list_text[i];
151 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
155 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
159 if( var_Type( p_aout, "audio-filter" ) == 0 )
161 var_Create( p_aout, "audio-filter",
162 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
163 text.psz_string = _("Audio filters");
164 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
166 if( var_Type( p_aout, "audio-visual" ) == 0 )
168 var_Create( p_aout, "audio-visual",
169 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
170 text.psz_string = _("Audio visualizations");
171 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
174 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
176 module_config_t *p_config;
179 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
180 if( p_config && p_config->i_list )
182 var_Create( p_aout, "audio-replay-gain-mode",
183 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
185 text.psz_string = _("Replay gain");
186 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
188 for( i = 0; i < p_config->i_list; i++ )
190 val.psz_string = (char *)p_config->ppsz_list[i];
191 text.psz_string = (char *)p_config->ppsz_list_text[i];
192 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
196 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
199 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
201 var_Create( p_aout, "audio-replay-gain-preamp",
202 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
204 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
206 var_Create( p_aout, "audio-replay-gain-default",
207 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
209 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
211 var_Create( p_aout, "audio-replay-gain-peak-protection",
212 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
214 if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
216 var_Create( p_aout, "audio-time-stretch",
217 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
220 var_Get( p_aout, "audio-filter", &val );
221 psz_filters = val.psz_string;
222 var_Get( p_aout, "audio-visual", &val );
223 psz_visual = val.psz_string;
225 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
227 /* parse user filter lists */
228 for( i_visual = 0; i_visual < 2; i_visual++ )
230 char *ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
231 char *psz_next = NULL;
232 char *psz_parser = ppsz_array[i_visual];
234 if( psz_parser == NULL || !*psz_parser )
237 while( psz_parser && *psz_parser )
239 aout_filter_t * p_filter = NULL;
241 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
243 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
247 while( *psz_parser == ' ' && *psz_parser == ':' )
251 if( ( psz_next = strchr( psz_parser , ':' ) ) )
255 if( *psz_parser =='\0' )
260 /* Create a VLC object */
261 static const char typename[] = "audio filter";
262 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
263 VLC_OBJECT_GENERIC, typename );
264 if( p_filter == NULL )
266 msg_Err( p_aout, "cannot add user filter %s (skipped)",
268 psz_parser = psz_next;
272 vlc_object_attach( p_filter , p_aout );
274 /* try to find the requested filter */
275 if( i_visual == 2 ) /* this can only be a visualization module */
278 memcpy( &p_filter->input, &chain_output_format,
279 sizeof(audio_sample_format_t) );
280 memcpy( &p_filter->output, &chain_output_format,
281 sizeof(audio_sample_format_t) );
283 p_filter->p_module = module_Need( p_filter, "visualization",
286 else /* this can be a audio filter module as well as a visualization module */
289 memcpy( &p_filter->input, &chain_input_format,
290 sizeof(audio_sample_format_t) );
291 memcpy( &p_filter->output, &chain_output_format,
292 sizeof(audio_sample_format_t) );
294 p_filter->p_module = module_Need( p_filter, "audio filter",
297 if ( p_filter->p_module == NULL )
299 /* if the filter requested a special format, retry */
300 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
301 &chain_input_format )
302 && AOUT_FMTS_IDENTICAL( &p_filter->output,
303 &chain_output_format ) ) )
305 aout_FormatPrepare( &p_filter->input );
306 aout_FormatPrepare( &p_filter->output );
307 p_filter->p_module = module_Need( p_filter,
311 /* try visual filters */
314 memcpy( &p_filter->input, &chain_output_format,
315 sizeof(audio_sample_format_t) );
316 memcpy( &p_filter->output, &chain_output_format,
317 sizeof(audio_sample_format_t) );
318 p_filter->p_module = module_Need( p_filter,
326 if ( p_filter->p_module == NULL )
328 msg_Err( p_aout, "cannot add user filter %s (skipped)",
331 vlc_object_detach( p_filter );
332 vlc_object_release( p_filter );
334 psz_parser = psz_next;
338 /* complete the filter chain if necessary */
339 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
341 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
342 &p_input->i_nb_filters,
344 &p_filter->input ) < 0 )
346 msg_Err( p_aout, "cannot add user filter %s (skipped)",
349 module_Unneed( p_filter, p_filter->p_module );
350 vlc_object_detach( p_filter );
351 vlc_object_release( p_filter );
353 psz_parser = psz_next;
359 p_filter->b_continuity = false;
360 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
361 memcpy( &chain_input_format, &p_filter->output,
362 sizeof( audio_sample_format_t ) );
364 /* next filter if any */
365 psz_parser = psz_next;
370 free( psz_scaletempo );
372 /* complete the filter chain if necessary */
373 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
375 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
376 &p_input->i_nb_filters,
378 &chain_output_format ) < 0 )
380 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
385 /* Prepare hints for the buffer allocator. */
386 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
387 p_input->input_alloc.i_bytes_per_sec = -1;
389 /* Create resamplers. */
390 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
392 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
393 p_aout->mixer.mixer.i_rate)
394 * (100 + AOUT_MAX_RESAMPLING)) / 100;
395 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
397 /* Just in case... */
398 chain_output_format.i_rate++;
400 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
401 &p_input->i_nb_resamplers,
402 &chain_output_format,
403 &p_aout->mixer.mixer ) < 0 )
405 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
409 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
410 p_input->i_nb_resamplers,
411 &p_input->input_alloc );
412 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
414 /* Setup the initial rate of the resampler */
415 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
417 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
419 p_input->p_playback_rate_filter = NULL;
420 for( int i = 0; i < p_input->i_nb_filters; i++ )
422 aout_filter_t *p_filter = p_input->pp_filters[i];
423 if( strcmp( "scaletempo", p_filter->psz_object_name ) == 0 )
425 p_input->p_playback_rate_filter = p_filter;
429 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
431 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
434 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
435 p_input->i_nb_filters,
436 &p_input->input_alloc );
437 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
439 /* i_bytes_per_sec is still == -1 if no filters */
440 p_input->input_alloc.i_bytes_per_sec = __MAX(
441 p_input->input_alloc.i_bytes_per_sec,
442 (int)(p_input->input.i_bytes_per_frame
443 * p_input->input.i_rate
444 / p_input->input.i_frame_length) );
446 ReplayGainSelect( p_aout, p_input );
449 p_input->b_error = false;
450 p_input->b_restart = false;
451 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
456 /*****************************************************************************
457 * aout_InputDelete : delete an input
458 *****************************************************************************
459 * This function must be entered with the mixer lock.
460 *****************************************************************************/
461 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
463 AOUT_ASSERT_MIXER_LOCKED;
464 if ( p_input->b_error ) return 0;
466 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
467 p_input->i_nb_filters );
468 p_input->i_nb_filters = 0;
469 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
470 p_input->i_nb_resamplers );
471 p_input->i_nb_resamplers = 0;
472 aout_FifoDestroy( p_aout, &p_input->fifo );
477 /*****************************************************************************
478 * aout_InputPlay : play a buffer
479 *****************************************************************************
480 * This function must be entered with the input lock.
481 *****************************************************************************/
482 /* XXX Do not activate it !! */
483 //#define AOUT_PROCESS_BEFORE_CHEKS
484 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
485 aout_buffer_t * p_buffer, int i_input_rate )
488 AOUT_ASSERT_INPUT_LOCKED;
490 if( p_input->b_restart )
492 aout_fifo_t fifo, dummy_fifo;
493 uint8_t *p_first_byte_to_mix;
495 aout_lock_mixer( p_aout );
496 aout_lock_input_fifos( p_aout );
498 /* A little trick to avoid loosing our input fifo */
499 aout_FifoInit( p_aout, &dummy_fifo, p_aout->mixer.mixer.i_rate );
500 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
501 fifo = p_input->fifo;
502 p_input->fifo = dummy_fifo;
503 aout_InputDelete( p_aout, p_input );
504 aout_InputNew( p_aout, p_input );
505 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
506 p_input->fifo = fifo;
508 aout_unlock_input_fifos( p_aout );
509 aout_unlock_mixer( p_aout );
512 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
514 inputDrop( p_aout, p_input, p_buffer );
518 #ifdef AOUT_PROCESS_BEFORE_CHEKS
519 /* Run pre-filters. */
520 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
523 /* Actually run the resampler now. */
524 if ( p_input->i_nb_resamplers > 0 )
526 const mtime_t i_date = p_buffer->start_date;
527 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
528 p_input->i_nb_resamplers,
532 if( p_buffer->i_nb_samples <= 0 )
534 aout_BufferFree( p_buffer );
539 /* Handle input rate change, but keep drift correction */
540 if( i_input_rate != p_input->i_last_input_rate )
542 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
543 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
544 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
545 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
547 p_input->i_last_input_rate = i_input_rate;
550 /* We don't care if someone changes the start date behind our back after
551 * this. We'll deal with that when pushing the buffer, and compensate
552 * with the next incoming buffer. */
553 aout_lock_input_fifos( p_aout );
554 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
555 aout_unlock_input_fifos( p_aout );
557 if ( start_date != 0 && start_date < mdate() )
559 /* The decoder is _very_ late. This can only happen if the user
560 * pauses the stream (or if the decoder is buggy, which cannot
562 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
563 "clearing out", mdate() - start_date );
564 aout_lock_input_fifos( p_aout );
565 aout_FifoSet( p_aout, &p_input->fifo, 0 );
566 p_input->p_first_byte_to_mix = NULL;
567 aout_unlock_input_fifos( p_aout );
568 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
569 msg_Warn( p_aout, "timing screwed, stopping resampling" );
570 inputResamplingStop( p_input );
574 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
576 /* The decoder gives us f*cked up PTS. It's its business, but we
577 * can't present it anyway, so drop the buffer. */
578 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
579 mdate() - p_buffer->start_date );
581 inputDrop( p_aout, p_input, p_buffer );
582 inputResamplingStop( p_input );
586 /* If the audio drift is too big then it's not worth trying to resample
588 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
589 if ( start_date != 0 &&
590 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
592 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
593 start_date - p_buffer->start_date );
594 aout_lock_input_fifos( p_aout );
595 aout_FifoSet( p_aout, &p_input->fifo, 0 );
596 p_input->p_first_byte_to_mix = 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 );
603 else if ( start_date != 0 &&
604 ( start_date > p_buffer->start_date + i_pts_tolerance) )
606 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
607 start_date - p_buffer->start_date );
608 inputDrop( p_aout, p_input, p_buffer );
612 if ( start_date == 0 ) start_date = p_buffer->start_date;
614 #ifndef AOUT_PROCESS_BEFORE_CHEKS
615 /* Run pre-filters. */
616 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
620 /* Run the resampler if needed.
621 * We first need to calculate the output rate of this resampler. */
622 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
623 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
624 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
625 p_input->i_nb_resamplers > 0 )
627 /* Can happen in several circumstances :
628 * 1. A problem at the input (clock drift)
629 * 2. A small pause triggered by the user
630 * 3. Some delay in the output stage, causing a loss of lip
632 * Solution : resample the buffer to avoid a scratch.
634 mtime_t drift = p_buffer->start_date - start_date;
636 p_input->i_resamp_start_date = mdate();
637 p_input->i_resamp_start_drift = (int)drift;
640 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
642 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
644 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
645 drift > 0 ? drift : -drift,
646 drift > 0 ? "in advance" : "late",
647 drift > 0 ? "down" : "up");
650 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
652 /* Resampling has been triggered previously (because of dates
653 * mismatch). We want the resampling to happen progressively so
654 * it isn't too audible to the listener. */
656 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
658 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
662 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
665 /* Check if everything is back to normal, in which case we can stop the
667 unsigned int i_nominal_rate =
668 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
669 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
670 : p_input->input.i_rate;
671 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
673 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
674 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
675 "(drift: %"PRIi64")",
676 mdate() - p_input->i_resamp_start_date,
677 p_buffer->start_date - start_date);
679 else if( abs( (int)(p_buffer->start_date - start_date) ) <
680 abs( p_input->i_resamp_start_drift ) / 2 )
682 /* if we reduced the drift from half, then it is time to switch
683 * back the resampling direction. */
684 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
685 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
687 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
688 p_input->i_resamp_start_drift = 0;
690 else if( p_input->i_resamp_start_drift &&
691 ( abs( (int)(p_buffer->start_date - start_date) ) >
692 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
694 /* If the drift is increasing and not decreasing, than something
695 * is bad. We'd better stop the resampling right now. */
696 msg_Warn( p_aout, "timing screwed, stopping resampling" );
697 inputResamplingStop( p_input );
701 #ifndef AOUT_PROCESS_BEFORE_CHEKS
702 /* Actually run the resampler now. */
703 if ( p_input->i_nb_resamplers > 0 )
705 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
706 p_input->i_nb_resamplers,
710 if( p_buffer->i_nb_samples <= 0 )
712 aout_BufferFree( p_buffer );
717 /* Adding the start date will be managed by aout_FifoPush(). */
718 p_buffer->end_date = start_date +
719 (p_buffer->end_date - p_buffer->start_date);
720 p_buffer->start_date = start_date;
722 aout_lock_input_fifos( p_aout );
723 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
724 aout_unlock_input_fifos( p_aout );
728 /*****************************************************************************
730 *****************************************************************************/
732 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
733 const char * psz_error_message )
736 msg_Err( p_aout, "%s", psz_error_message );
739 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
740 p_input->i_nb_filters );
741 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
742 p_input->i_nb_resamplers );
743 aout_FifoDestroy( p_aout, &p_input->fifo );
744 var_Destroy( p_aout, "visual" );
745 var_Destroy( p_aout, "equalizer" );
746 var_Destroy( p_aout, "audio-filter" );
747 var_Destroy( p_aout, "audio-visual" );
749 var_Destroy( p_aout, "audio-replay-gain-mode" );
750 var_Destroy( p_aout, "audio-replay-gain-default" );
751 var_Destroy( p_aout, "audio-replay-gain-preamp" );
752 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
755 p_input->b_error = 1;
758 static void inputDrop( aout_instance_t *p_aout, aout_input_t *p_input, aout_buffer_t *p_buffer )
760 aout_BufferFree( p_buffer );
762 if( !p_input->p_input_thread )
765 vlc_mutex_lock( &p_input->p_input_thread->p->counters.counters_lock);
766 stats_UpdateInteger( p_aout, p_input->p_input_thread->p->counters.p_lost_abuffers, 1, NULL );
767 vlc_mutex_unlock( &p_input->p_input_thread->p->counters.counters_lock);
770 static void inputResamplingStop( aout_input_t *p_input )
772 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
773 if( p_input->i_nb_resamplers != 0 )
775 p_input->pp_resamplers[0]->input.i_rate =
776 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
777 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
778 : p_input->input.i_rate;
779 p_input->pp_resamplers[0]->b_continuity = false;
783 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
784 const char *psz_name, bool b_add )
786 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
787 psz_variable, psz_name, b_add ) ? 1 : 0;
790 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
791 vlc_value_t oldval, vlc_value_t newval, void *p_data )
793 aout_instance_t *p_aout = (aout_instance_t *)p_this;
794 char *psz_mode = newval.psz_string;
796 (void)psz_cmd; (void)oldval; (void)p_data;
798 if( !psz_mode || !*psz_mode )
800 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
801 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
802 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false );
806 if( !strcmp( "goom", psz_mode ) )
808 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
809 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
810 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
812 else if( !strcmp( "galaktos", psz_mode ) )
814 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
815 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
816 ChangeFiltersString( p_aout, "audio-visual", "galaktos", true );
820 val.psz_string = psz_mode;
821 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
822 var_Set( p_aout, "effect-list", val );
824 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
825 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
826 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
831 AoutInputsMarkToRestart( p_aout );
836 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
837 vlc_value_t oldval, vlc_value_t newval, void *p_data )
839 aout_instance_t *p_aout = (aout_instance_t *)p_this;
840 char *psz_mode = newval.psz_string;
843 (void)psz_cmd; (void)oldval; (void)p_data;
845 if( !psz_mode || !*psz_mode )
847 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
852 val.psz_string = psz_mode;
853 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
854 var_Set( p_aout, "equalizer-preset", val );
855 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
862 AoutInputsMarkToRestart( p_aout );
866 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
867 vlc_value_t oldval, vlc_value_t newval, void *p_data )
869 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
870 VLC_UNUSED(newval); VLC_UNUSED(p_data);
871 aout_instance_t *p_aout = (aout_instance_t *)p_this;
874 aout_lock_mixer( p_aout );
875 for( i = 0; i < p_aout->i_nb_inputs; i++ )
876 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
878 /* Restart the mixer (a trivial mixer may be in use) */
879 aout_MixerMultiplierSet( p_aout, p_aout->mixer.f_multiplier );
880 aout_unlock_mixer( p_aout );
885 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
887 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
888 "audio-replay-gain-mode" );
893 p_input->f_multiplier = 1.0;
895 if( !psz_replay_gain )
898 /* Find select mode */
899 if( !strcmp( psz_replay_gain, "track" ) )
900 i_mode = AUDIO_REPLAY_GAIN_TRACK;
901 else if( !strcmp( psz_replay_gain, "album" ) )
902 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
904 i_mode = AUDIO_REPLAY_GAIN_MAX;
906 /* If the select mode is not available, prefer the other one */
908 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
910 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
912 if( p_input->replay_gain.pb_gain[i_use] )
918 if( i_use != AUDIO_REPLAY_GAIN_MAX )
919 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
920 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
921 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
924 p_input->f_multiplier = pow( 10.0, f_gain / 20.0 );
927 if( p_input->replay_gain.pb_peak[i_use] &&
928 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
929 p_input->replay_gain.pf_peak[i_use] * p_input->f_multiplier > 1.0 )
931 p_input->f_multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
934 free( psz_replay_gain );