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;
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 );
215 var_Get( p_aout, "audio-filter", &val );
216 psz_filters = val.psz_string;
217 var_Get( p_aout, "audio-visual", &val );
218 psz_visual = val.psz_string;
220 /* parse user filter lists */
221 for( i_visual = 0; i_visual < 2; i_visual++ )
223 char *psz_next = NULL;
224 char *psz_parser = i_visual ? psz_visual : psz_filters;
226 if( psz_parser == NULL || !*psz_parser )
229 while( psz_parser && *psz_parser )
231 aout_filter_t * p_filter = NULL;
233 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
235 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
239 while( *psz_parser == ' ' && *psz_parser == ':' )
243 if( ( psz_next = strchr( psz_parser , ':' ) ) )
247 if( *psz_parser =='\0' )
252 /* Create a VLC object */
253 static const char typename[] = "audio filter";
254 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
255 VLC_OBJECT_GENERIC, typename );
256 if( p_filter == NULL )
258 msg_Err( p_aout, "cannot add user filter %s (skipped)",
260 psz_parser = psz_next;
264 vlc_object_attach( p_filter , p_aout );
266 /* try to find the requested filter */
267 if( i_visual == 1 ) /* this can only be a visualization module */
270 memcpy( &p_filter->input, &chain_output_format,
271 sizeof(audio_sample_format_t) );
272 memcpy( &p_filter->output, &chain_output_format,
273 sizeof(audio_sample_format_t) );
275 p_filter->p_module = module_Need( p_filter, "visualization",
278 else /* this can be a audio filter module as well as a visualization module */
281 memcpy( &p_filter->input, &chain_input_format,
282 sizeof(audio_sample_format_t) );
283 memcpy( &p_filter->output, &chain_output_format,
284 sizeof(audio_sample_format_t) );
286 p_filter->p_module = module_Need( p_filter, "audio filter",
289 if ( p_filter->p_module == NULL )
291 /* if the filter requested a special format, retry */
292 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
293 &chain_input_format )
294 && AOUT_FMTS_IDENTICAL( &p_filter->output,
295 &chain_output_format ) ) )
297 aout_FormatPrepare( &p_filter->input );
298 aout_FormatPrepare( &p_filter->output );
299 p_filter->p_module = module_Need( p_filter,
303 /* try visual filters */
306 memcpy( &p_filter->input, &chain_output_format,
307 sizeof(audio_sample_format_t) );
308 memcpy( &p_filter->output, &chain_output_format,
309 sizeof(audio_sample_format_t) );
310 p_filter->p_module = module_Need( p_filter,
318 if ( p_filter->p_module == NULL )
320 msg_Err( p_aout, "cannot add user filter %s (skipped)",
323 vlc_object_detach( p_filter );
324 vlc_object_release( p_filter );
326 psz_parser = psz_next;
330 /* complete the filter chain if necessary */
331 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
333 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
334 &p_input->i_nb_filters,
336 &p_filter->input ) < 0 )
338 msg_Err( p_aout, "cannot add user filter %s (skipped)",
341 module_Unneed( p_filter, p_filter->p_module );
342 vlc_object_detach( p_filter );
343 vlc_object_release( p_filter );
345 psz_parser = psz_next;
351 p_filter->b_continuity = false;
352 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
353 memcpy( &chain_input_format, &p_filter->output,
354 sizeof( audio_sample_format_t ) );
356 /* next filter if any */
357 psz_parser = psz_next;
363 /* complete the filter chain if necessary */
364 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
366 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
367 &p_input->i_nb_filters,
369 &chain_output_format ) < 0 )
371 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
376 /* Prepare hints for the buffer allocator. */
377 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
378 p_input->input_alloc.i_bytes_per_sec = -1;
380 /* Create resamplers. */
381 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
383 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
384 p_aout->mixer.mixer.i_rate)
385 * (100 + AOUT_MAX_RESAMPLING)) / 100;
386 if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
388 /* Just in case... */
389 chain_output_format.i_rate++;
391 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
392 &p_input->i_nb_resamplers,
393 &chain_output_format,
394 &p_aout->mixer.mixer ) < 0 )
396 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
400 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
401 p_input->i_nb_resamplers,
402 &p_input->input_alloc );
403 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
405 /* Setup the initial rate of the resampler */
406 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
408 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
410 p_input->p_playback_rate_filter = NULL;
411 for( int i = 0; i < p_input->i_nb_filters; i++ )
413 aout_filter_t *p_filter = p_input->pp_filters[i];
414 if( strcmp( "scaletempo", p_filter->psz_object_name ) == 0 )
416 p_input->p_playback_rate_filter = p_filter;
420 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
422 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
425 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
426 p_input->i_nb_filters,
427 &p_input->input_alloc );
428 p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
430 /* i_bytes_per_sec is still == -1 if no filters */
431 p_input->input_alloc.i_bytes_per_sec = __MAX(
432 p_input->input_alloc.i_bytes_per_sec,
433 (int)(p_input->input.i_bytes_per_frame
434 * p_input->input.i_rate
435 / p_input->input.i_frame_length) );
437 ReplayGainSelect( p_aout, p_input );
440 p_input->b_error = false;
441 p_input->b_restart = false;
442 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
447 /*****************************************************************************
448 * aout_InputDelete : delete an input
449 *****************************************************************************
450 * This function must be entered with the mixer lock.
451 *****************************************************************************/
452 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
454 AOUT_ASSERT_MIXER_LOCKED;
455 if ( p_input->b_error ) return 0;
457 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
458 p_input->i_nb_filters );
459 p_input->i_nb_filters = 0;
460 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
461 p_input->i_nb_resamplers );
462 p_input->i_nb_resamplers = 0;
463 aout_FifoDestroy( p_aout, &p_input->fifo );
468 /*****************************************************************************
469 * aout_InputPlay : play a buffer
470 *****************************************************************************
471 * This function must be entered with the input lock.
472 *****************************************************************************/
473 /* XXX Do not activate it !! */
474 //#define AOUT_PROCESS_BEFORE_CHEKS
475 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
476 aout_buffer_t * p_buffer, int i_input_rate )
479 AOUT_ASSERT_INPUT_LOCKED;
481 if( p_input->b_restart )
483 aout_fifo_t fifo, dummy_fifo;
484 uint8_t *p_first_byte_to_mix;
486 vlc_mutex_lock( &p_aout->mixer_lock );
488 /* A little trick to avoid loosing our input fifo */
489 aout_FifoInit( p_aout, &dummy_fifo, p_aout->mixer.mixer.i_rate );
490 p_first_byte_to_mix = p_input->p_first_byte_to_mix;
491 fifo = p_input->fifo;
492 p_input->fifo = dummy_fifo;
493 aout_InputDelete( p_aout, p_input );
494 aout_InputNew( p_aout, p_input );
495 p_input->p_first_byte_to_mix = p_first_byte_to_mix;
496 p_input->fifo = fifo;
498 vlc_mutex_unlock( &p_aout->mixer_lock );
501 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
503 inputDrop( p_aout, p_input, p_buffer );
507 #ifdef AOUT_PROCESS_BEFORE_CHEKS
508 /* Run pre-filters. */
509 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
512 /* Actually run the resampler now. */
513 if ( p_input->i_nb_resamplers > 0 )
515 const mtime_t i_date = p_buffer->start_date;
516 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
517 p_input->i_nb_resamplers,
521 if( p_buffer->i_nb_samples <= 0 )
523 aout_BufferFree( p_buffer );
528 /* Handle input rate change, but keep drift correction */
529 if( i_input_rate != p_input->i_last_input_rate )
531 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
532 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
533 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
534 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
536 p_input->i_last_input_rate = i_input_rate;
539 /* We don't care if someone changes the start date behind our back after
540 * this. We'll deal with that when pushing the buffer, and compensate
541 * with the next incoming buffer. */
542 vlc_mutex_lock( &p_aout->input_fifos_lock );
543 start_date = aout_FifoNextStart( p_aout, &p_input->fifo );
544 vlc_mutex_unlock( &p_aout->input_fifos_lock );
546 if ( start_date != 0 && start_date < mdate() )
548 /* The decoder is _very_ late. This can only happen if the user
549 * pauses the stream (or if the decoder is buggy, which cannot
551 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
552 "clearing out", mdate() - start_date );
553 vlc_mutex_lock( &p_aout->input_fifos_lock );
554 aout_FifoSet( p_aout, &p_input->fifo, 0 );
555 p_input->p_first_byte_to_mix = NULL;
556 vlc_mutex_unlock( &p_aout->input_fifos_lock );
557 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
558 msg_Warn( p_aout, "timing screwed, stopping resampling" );
559 inputResamplingStop( p_input );
563 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
565 /* The decoder gives us f*cked up PTS. It's its business, but we
566 * can't present it anyway, so drop the buffer. */
567 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
568 mdate() - p_buffer->start_date );
570 inputDrop( p_aout, p_input, p_buffer );
571 inputResamplingStop( p_input );
575 /* If the audio drift is too big then it's not worth trying to resample
577 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
578 if ( start_date != 0 &&
579 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
581 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
582 start_date - p_buffer->start_date );
583 vlc_mutex_lock( &p_aout->input_fifos_lock );
584 aout_FifoSet( p_aout, &p_input->fifo, 0 );
585 p_input->p_first_byte_to_mix = NULL;
586 vlc_mutex_unlock( &p_aout->input_fifos_lock );
587 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
588 msg_Warn( p_aout, "timing screwed, stopping resampling" );
589 inputResamplingStop( p_input );
592 else if ( start_date != 0 &&
593 ( start_date > p_buffer->start_date + i_pts_tolerance) )
595 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
596 start_date - p_buffer->start_date );
597 inputDrop( p_aout, p_input, p_buffer );
601 if ( start_date == 0 ) start_date = p_buffer->start_date;
603 #ifndef AOUT_PROCESS_BEFORE_CHEKS
604 /* Run pre-filters. */
605 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
609 /* Run the resampler if needed.
610 * We first need to calculate the output rate of this resampler. */
611 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
612 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
613 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
614 p_input->i_nb_resamplers > 0 )
616 /* Can happen in several circumstances :
617 * 1. A problem at the input (clock drift)
618 * 2. A small pause triggered by the user
619 * 3. Some delay in the output stage, causing a loss of lip
621 * Solution : resample the buffer to avoid a scratch.
623 mtime_t drift = p_buffer->start_date - start_date;
625 p_input->i_resamp_start_date = mdate();
626 p_input->i_resamp_start_drift = (int)drift;
629 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
631 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
633 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
634 drift > 0 ? drift : -drift,
635 drift > 0 ? "in advance" : "late",
636 drift > 0 ? "down" : "up");
639 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
641 /* Resampling has been triggered previously (because of dates
642 * mismatch). We want the resampling to happen progressively so
643 * it isn't too audible to the listener. */
645 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
647 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
651 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
654 /* Check if everything is back to normal, in which case we can stop the
656 unsigned int i_nominal_rate =
657 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
658 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
659 : p_input->input.i_rate;
660 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
662 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
663 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
664 "(drift: %"PRIi64")",
665 mdate() - p_input->i_resamp_start_date,
666 p_buffer->start_date - start_date);
668 else if( abs( (int)(p_buffer->start_date - start_date) ) <
669 abs( p_input->i_resamp_start_drift ) / 2 )
671 /* if we reduced the drift from half, then it is time to switch
672 * back the resampling direction. */
673 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
674 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
676 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
677 p_input->i_resamp_start_drift = 0;
679 else if( p_input->i_resamp_start_drift &&
680 ( abs( (int)(p_buffer->start_date - start_date) ) >
681 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
683 /* If the drift is increasing and not decreasing, than something
684 * is bad. We'd better stop the resampling right now. */
685 msg_Warn( p_aout, "timing screwed, stopping resampling" );
686 inputResamplingStop( p_input );
690 #ifndef AOUT_PROCESS_BEFORE_CHEKS
691 /* Actually run the resampler now. */
692 if ( p_input->i_nb_resamplers > 0 )
694 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
695 p_input->i_nb_resamplers,
699 if( p_buffer->i_nb_samples <= 0 )
701 aout_BufferFree( p_buffer );
706 /* Adding the start date will be managed by aout_FifoPush(). */
707 p_buffer->end_date = start_date +
708 (p_buffer->end_date - p_buffer->start_date);
709 p_buffer->start_date = start_date;
711 vlc_mutex_lock( &p_aout->input_fifos_lock );
712 aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
713 vlc_mutex_unlock( &p_aout->input_fifos_lock );
717 /*****************************************************************************
719 *****************************************************************************/
721 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
722 const char * psz_error_message )
725 msg_Err( p_aout, "%s", psz_error_message );
728 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
729 p_input->i_nb_filters );
730 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
731 p_input->i_nb_resamplers );
732 aout_FifoDestroy( p_aout, &p_input->fifo );
733 var_Destroy( p_aout, "visual" );
734 var_Destroy( p_aout, "equalizer" );
735 var_Destroy( p_aout, "audio-filter" );
736 var_Destroy( p_aout, "audio-visual" );
738 var_Destroy( p_aout, "audio-replay-gain-mode" );
739 var_Destroy( p_aout, "audio-replay-gain-default" );
740 var_Destroy( p_aout, "audio-replay-gain-preamp" );
741 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
744 p_input->b_error = 1;
747 static void inputDrop( aout_instance_t *p_aout, aout_input_t *p_input, aout_buffer_t *p_buffer )
749 aout_BufferFree( p_buffer );
751 if( !p_input->p_input_thread )
754 vlc_mutex_lock( &p_input->p_input_thread->p->counters.counters_lock);
755 stats_UpdateInteger( p_aout, p_input->p_input_thread->p->counters.p_lost_abuffers, 1, NULL );
756 vlc_mutex_unlock( &p_input->p_input_thread->p->counters.counters_lock);
759 static void inputResamplingStop( aout_input_t *p_input )
761 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
762 if( p_input->i_nb_resamplers != 0 )
764 p_input->pp_resamplers[0]->input.i_rate =
765 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
766 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
767 : p_input->input.i_rate;
768 p_input->pp_resamplers[0]->b_continuity = false;
772 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
773 const char *psz_name, bool b_add )
775 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
776 psz_variable, psz_name, b_add ) ? 1 : 0;
779 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
780 vlc_value_t oldval, vlc_value_t newval, void *p_data )
782 aout_instance_t *p_aout = (aout_instance_t *)p_this;
783 char *psz_mode = newval.psz_string;
785 (void)psz_cmd; (void)oldval; (void)p_data;
787 if( !psz_mode || !*psz_mode )
789 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
790 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
791 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false );
795 if( !strcmp( "goom", psz_mode ) )
797 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
798 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
799 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
801 else if( !strcmp( "galaktos", psz_mode ) )
803 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
804 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
805 ChangeFiltersString( p_aout, "audio-visual", "galaktos", true );
809 val.psz_string = psz_mode;
810 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
811 var_Set( p_aout, "effect-list", val );
813 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
814 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
815 ChangeFiltersString( p_aout, "audio-visual", "galaktos", false);
820 AoutInputsMarkToRestart( p_aout );
825 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
826 vlc_value_t oldval, vlc_value_t newval, void *p_data )
828 aout_instance_t *p_aout = (aout_instance_t *)p_this;
829 char *psz_mode = newval.psz_string;
832 (void)psz_cmd; (void)oldval; (void)p_data;
834 if( !psz_mode || !*psz_mode )
836 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
841 val.psz_string = psz_mode;
842 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
843 var_Set( p_aout, "equalizer-preset", val );
844 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
851 AoutInputsMarkToRestart( p_aout );
855 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
856 vlc_value_t oldval, vlc_value_t newval, void *p_data )
858 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
859 VLC_UNUSED(newval); VLC_UNUSED(p_data);
860 aout_instance_t *p_aout = (aout_instance_t *)p_this;
863 vlc_mutex_lock( &p_aout->mixer_lock );
864 for( i = 0; i < p_aout->i_nb_inputs; i++ )
865 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
867 /* Restart the mixer (a trivial mixer may be in use) */
868 aout_MixerMultiplierSet( p_aout, p_aout->mixer.f_multiplier );
869 vlc_mutex_unlock( &p_aout->mixer_lock );
874 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
876 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
877 "audio-replay-gain-mode" );
882 p_input->f_multiplier = 1.0;
884 if( !psz_replay_gain )
887 /* Find select mode */
888 if( !strcmp( psz_replay_gain, "track" ) )
889 i_mode = AUDIO_REPLAY_GAIN_TRACK;
890 else if( !strcmp( psz_replay_gain, "album" ) )
891 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
893 i_mode = AUDIO_REPLAY_GAIN_MAX;
895 /* If the select mode is not available, prefer the other one */
897 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
899 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
901 if( p_input->replay_gain.pb_gain[i_use] )
907 if( i_use != AUDIO_REPLAY_GAIN_MAX )
908 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
909 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
910 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
913 p_input->f_multiplier = pow( 10.0, f_gain / 20.0 );
916 if( p_input->replay_gain.pb_peak[i_use] &&
917 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
918 p_input->replay_gain.pf_peak[i_use] * p_input->f_multiplier > 1.0 )
920 p_input->f_multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
923 free( psz_replay_gain );