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_attach( p_filter , p_aout );
288 p_filter->request_vout.pf_request_vout = RequestVoutFromFilter;
289 p_filter->request_vout.p_private = p_input;
291 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
292 p_filter->p_owner->p_aout = p_aout;
293 p_filter->p_owner->p_input = p_input;
296 memcpy( &p_filter->input, &chain_output_format,
297 sizeof(audio_sample_format_t) );
298 memcpy( &p_filter->output, &chain_output_format,
299 sizeof(audio_sample_format_t) );
302 /* try to find the requested filter */
303 if( i_visual == 2 ) /* this can only be a visualization module */
305 p_filter->p_module = module_need( p_filter, "visualization",
308 else /* this can be a audio filter module as well as a visualization module */
310 p_filter->p_module = module_need( p_filter, "audio filter",
313 if ( p_filter->p_module == NULL )
315 /* if the filter requested a special format, retry */
316 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
317 &chain_input_format )
318 && AOUT_FMTS_IDENTICAL( &p_filter->output,
319 &chain_output_format ) ) )
321 aout_FormatPrepare( &p_filter->input );
322 aout_FormatPrepare( &p_filter->output );
323 p_filter->p_module = module_need( p_filter,
327 /* try visual filters */
330 memcpy( &p_filter->input, &chain_output_format,
331 sizeof(audio_sample_format_t) );
332 memcpy( &p_filter->output, &chain_output_format,
333 sizeof(audio_sample_format_t) );
334 p_filter->p_module = module_need( p_filter,
342 if ( p_filter->p_module == NULL )
344 msg_Err( p_aout, "cannot add user filter %s (skipped)",
347 free( p_filter->p_owner );
348 vlc_object_detach( p_filter );
349 vlc_object_release( p_filter );
351 psz_parser = psz_next;
355 /* complete the filter chain if necessary */
356 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
358 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
359 &p_input->i_nb_filters,
361 &p_filter->input ) < 0 )
363 msg_Err( p_aout, "cannot add user filter %s (skipped)",
366 module_unneed( p_filter, p_filter->p_module );
367 free( p_filter->p_owner );
368 vlc_object_detach( p_filter );
369 vlc_object_release( p_filter );
371 psz_parser = psz_next;
377 p_filter->b_continuity = false;
378 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
379 memcpy( &chain_input_format, &p_filter->output,
380 sizeof( audio_sample_format_t ) );
382 if( i_visual == 0 ) /* scaletempo */
383 p_input->p_playback_rate_filter = p_filter;
385 /* next filter if any */
386 psz_parser = psz_next;
391 free( psz_scaletempo );
393 /* complete the filter chain if necessary */
394 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
396 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
397 &p_input->i_nb_filters,
399 &chain_output_format ) < 0 )
401 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
406 /* Prepare hints for the buffer allocator. */
407 p_input->input_alloc.b_alloc = true;
408 p_input->input_alloc.i_bytes_per_sec = -1;
410 /* Create resamplers. */
411 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer_format ) )
413 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
414 p_aout->mixer_format.i_rate)
415 * (100 + AOUT_MAX_RESAMPLING)) / 100;
416 if ( chain_output_format.i_rate == p_aout->mixer_format.i_rate )
418 /* Just in case... */
419 chain_output_format.i_rate++;
421 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
422 &p_input->i_nb_resamplers,
423 &chain_output_format,
424 &p_aout->mixer_format ) < 0 )
426 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
430 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
431 p_input->i_nb_resamplers,
432 &p_input->input_alloc );
433 p_input->input_alloc.b_alloc = true;
435 /* Setup the initial rate of the resampler */
436 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
438 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
440 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
442 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
445 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
446 p_input->i_nb_filters,
447 &p_input->input_alloc );
448 p_input->input_alloc.b_alloc = true;
450 /* i_bytes_per_sec is still == -1 if no filters */
451 p_input->input_alloc.i_bytes_per_sec = __MAX(
452 p_input->input_alloc.i_bytes_per_sec,
453 (int)(p_input->input.i_bytes_per_frame
454 * p_input->input.i_rate
455 / p_input->input.i_frame_length) );
457 ReplayGainSelect( p_aout, p_input );
460 p_input->b_error = false;
461 p_input->b_restart = false;
462 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
467 /*****************************************************************************
468 * aout_InputDelete : delete an input
469 *****************************************************************************
470 * This function must be entered with the mixer lock.
471 *****************************************************************************/
472 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
474 AOUT_ASSERT_MIXER_LOCKED;
475 if ( p_input->b_error )
478 /* XXX We need to update b_recycle_vout before calling aout_FiltersDestroyPipeline.
479 * FIXME They can be a race condition if audio-visual is updated between
480 * aout_InputDelete and aout_InputNew.
482 char *psz_visual = var_GetString( p_aout, "audio-visual");
483 p_input->b_recycle_vout = psz_visual && *psz_visual;
486 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
487 p_input->i_nb_filters );
488 p_input->i_nb_filters = 0;
489 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
490 p_input->i_nb_resamplers );
491 p_input->i_nb_resamplers = 0;
492 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
497 /*****************************************************************************
498 * aout_InputPlay : play a buffer
499 *****************************************************************************
500 * This function must be entered with the input lock.
501 *****************************************************************************/
502 /* XXX Do not activate it !! */
503 //#define AOUT_PROCESS_BEFORE_CHEKS
504 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
505 aout_buffer_t * p_buffer, int i_input_rate )
508 AOUT_ASSERT_INPUT_LOCKED;
510 if( p_input->b_restart )
513 uint8_t *p_first_byte_to_mix;
515 mtime_t i_pause_date;
517 aout_lock_mixer( p_aout );
518 aout_lock_input_fifos( p_aout );
520 /* A little trick to avoid loosing our input fifo and properties */
522 p_first_byte_to_mix = p_input->mixer.begin;
523 fifo = p_input->mixer.fifo;
524 b_paused = p_input->b_paused;
525 i_pause_date = p_input->i_pause_date;
527 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->mixer_format.i_rate );
529 aout_InputDelete( p_aout, p_input );
531 aout_InputNew( p_aout, p_input, &p_input->request_vout );
532 p_input->mixer.begin = p_first_byte_to_mix;
533 p_input->mixer.fifo = fifo;
534 p_input->b_paused = b_paused;
535 p_input->i_pause_date = i_pause_date;
537 aout_unlock_input_fifos( p_aout );
538 aout_unlock_mixer( p_aout );
541 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
543 inputDrop( p_input, p_buffer );
547 #ifdef AOUT_PROCESS_BEFORE_CHEKS
548 /* Run pre-filters. */
549 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
552 /* Actually run the resampler now. */
553 if ( p_input->i_nb_resamplers > 0 )
555 const mtime_t i_date = p_buffer->i_pts;
556 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
557 p_input->i_nb_resamplers,
561 if( p_buffer->i_nb_samples <= 0 )
563 aout_BufferFree( p_buffer );
568 /* Handle input rate change, but keep drift correction */
569 if( i_input_rate != p_input->i_last_input_rate )
571 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
572 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
573 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
574 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
576 p_input->i_last_input_rate = i_input_rate;
579 /* We don't care if someone changes the start date behind our back after
580 * this. We'll deal with that when pushing the buffer, and compensate
581 * with the next incoming buffer. */
582 aout_lock_input_fifos( p_aout );
583 start_date = aout_FifoNextStart( p_aout, &p_input->mixer.fifo );
584 aout_unlock_input_fifos( p_aout );
586 if ( start_date != 0 && start_date < mdate() )
588 /* The decoder is _very_ late. This can only happen if the user
589 * pauses the stream (or if the decoder is buggy, which cannot
591 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
592 "clearing out", mdate() - start_date );
593 aout_lock_input_fifos( p_aout );
594 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
595 p_input->mixer.begin = NULL;
596 aout_unlock_input_fifos( p_aout );
597 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
598 msg_Warn( p_aout, "timing screwed, stopping resampling" );
599 inputResamplingStop( p_input );
603 if ( p_buffer->i_pts < mdate() + AOUT_MIN_PREPARE_TIME )
605 /* The decoder gives us f*cked up PTS. It's its business, but we
606 * can't present it anyway, so drop the buffer. */
607 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
608 mdate() - p_buffer->i_pts );
610 inputDrop( p_input, p_buffer );
611 inputResamplingStop( p_input );
615 /* If the audio drift is too big then it's not worth trying to resample
617 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
618 if ( start_date != 0 &&
619 ( start_date < p_buffer->i_pts - i_pts_tolerance ) )
621 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
622 start_date - p_buffer->i_pts );
623 aout_lock_input_fifos( p_aout );
624 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
625 p_input->mixer.begin = NULL;
626 aout_unlock_input_fifos( p_aout );
627 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
628 msg_Warn( p_aout, "timing screwed, stopping resampling" );
629 inputResamplingStop( p_input );
632 else if ( start_date != 0 &&
633 ( start_date > p_buffer->i_pts + i_pts_tolerance) )
635 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
636 start_date - p_buffer->i_pts );
637 inputDrop( p_input, p_buffer );
641 if ( start_date == 0 ) start_date = p_buffer->i_pts;
643 #ifndef AOUT_PROCESS_BEFORE_CHEKS
644 /* Run pre-filters. */
645 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
649 /* Run the resampler if needed.
650 * We first need to calculate the output rate of this resampler. */
651 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
652 ( start_date < p_buffer->i_pts - AOUT_PTS_TOLERANCE
653 || start_date > p_buffer->i_pts + AOUT_PTS_TOLERANCE ) &&
654 p_input->i_nb_resamplers > 0 )
656 /* Can happen in several circumstances :
657 * 1. A problem at the input (clock drift)
658 * 2. A small pause triggered by the user
659 * 3. Some delay in the output stage, causing a loss of lip
661 * Solution : resample the buffer to avoid a scratch.
663 mtime_t drift = p_buffer->i_pts - start_date;
665 p_input->i_resamp_start_date = mdate();
666 p_input->i_resamp_start_drift = (int)drift;
669 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
671 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
673 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
674 drift > 0 ? drift : -drift,
675 drift > 0 ? "in advance" : "late",
676 drift > 0 ? "down" : "up");
679 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
681 /* Resampling has been triggered previously (because of dates
682 * mismatch). We want the resampling to happen progressively so
683 * it isn't too audible to the listener. */
685 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
687 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
691 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
694 /* Check if everything is back to normal, in which case we can stop the
696 unsigned int i_nominal_rate =
697 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
698 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
699 : p_input->input.i_rate;
700 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
702 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
703 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
704 "(drift: %"PRIi64")",
705 mdate() - p_input->i_resamp_start_date,
706 p_buffer->i_pts - start_date);
708 else if( abs( (int)(p_buffer->i_pts - start_date) ) <
709 abs( p_input->i_resamp_start_drift ) / 2 )
711 /* if we reduced the drift from half, then it is time to switch
712 * back the resampling direction. */
713 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
714 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
716 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
717 p_input->i_resamp_start_drift = 0;
719 else if( p_input->i_resamp_start_drift &&
720 ( abs( (int)(p_buffer->i_pts - start_date) ) >
721 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
723 /* If the drift is increasing and not decreasing, than something
724 * is bad. We'd better stop the resampling right now. */
725 msg_Warn( p_aout, "timing screwed, stopping resampling" );
726 inputResamplingStop( p_input );
730 #ifndef AOUT_PROCESS_BEFORE_CHEKS
731 /* Actually run the resampler now. */
732 if ( p_input->i_nb_resamplers > 0 )
734 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
735 p_input->i_nb_resamplers,
739 if( p_buffer->i_nb_samples <= 0 )
741 aout_BufferFree( p_buffer );
746 /* Adding the start date will be managed by aout_FifoPush(). */
747 p_buffer->i_pts = start_date;
749 aout_lock_input_fifos( p_aout );
750 aout_FifoPush( p_aout, &p_input->mixer.fifo, p_buffer );
751 aout_unlock_input_fifos( p_aout );
755 /*****************************************************************************
757 *****************************************************************************/
759 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
760 const char * psz_error_message )
763 msg_Err( p_aout, "%s", psz_error_message );
766 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
767 p_input->i_nb_filters );
768 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
769 p_input->i_nb_resamplers );
770 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
771 var_Destroy( p_aout, "visual" );
772 var_Destroy( p_aout, "equalizer" );
773 var_Destroy( p_aout, "audio-filter" );
774 var_Destroy( p_aout, "audio-visual" );
776 var_Destroy( p_aout, "audio-replay-gain-mode" );
777 var_Destroy( p_aout, "audio-replay-gain-default" );
778 var_Destroy( p_aout, "audio-replay-gain-preamp" );
779 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
782 p_input->b_error = 1;
785 static void inputDrop( aout_input_t *p_input, aout_buffer_t *p_buffer )
787 aout_BufferFree( p_buffer );
789 p_input->i_buffer_lost++;
792 static void inputResamplingStop( aout_input_t *p_input )
794 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
795 if( p_input->i_nb_resamplers != 0 )
797 p_input->pp_resamplers[0]->input.i_rate =
798 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
799 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
800 : p_input->input.i_rate;
801 p_input->pp_resamplers[0]->b_continuity = false;
805 static vout_thread_t *RequestVout( void *p_private,
806 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
808 aout_instance_t *p_aout = p_private;
809 VLC_UNUSED(b_recycle);
810 return vout_Request( p_aout, p_vout, p_fmt );
813 static vout_thread_t *RequestVoutFromFilter( void *p_private,
814 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
816 aout_input_t *p_input = p_private;
817 aout_request_vout_t *p_request = &p_input->request_vout;
819 return p_request->pf_request_vout( p_request->p_private,
820 p_vout, p_fmt, p_input->b_recycle_vout && b_recycle );
823 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
824 const char *psz_name, bool b_add )
826 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
827 psz_variable, psz_name, b_add ) ? 1 : 0;
830 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
831 vlc_value_t oldval, vlc_value_t newval, void *p_data )
833 aout_instance_t *p_aout = (aout_instance_t *)p_this;
834 char *psz_mode = newval.psz_string;
835 (void)psz_cmd; (void)oldval; (void)p_data;
837 if( !psz_mode || !*psz_mode )
839 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
840 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
841 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
845 if( !strcmp( "goom", psz_mode ) )
847 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
848 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
849 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
851 else if( !strcmp( "projectm", psz_mode ) )
853 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
854 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
855 ChangeFiltersString( p_aout, "audio-visual", "projectm", true );
859 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
860 var_SetString( p_aout, "effect-list", psz_mode );
862 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
863 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
864 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
869 AoutInputsMarkToRestart( p_aout );
874 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
875 vlc_value_t oldval, vlc_value_t newval, void *p_data )
877 aout_instance_t *p_aout = (aout_instance_t *)p_this;
878 char *psz_mode = newval.psz_string;
880 (void)psz_cmd; (void)oldval; (void)p_data;
882 if( !psz_mode || !*psz_mode )
884 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
889 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
890 var_SetString( p_aout, "equalizer-preset", psz_mode );
891 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
897 AoutInputsMarkToRestart( p_aout );
901 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
902 vlc_value_t oldval, vlc_value_t newval, void *p_data )
904 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
905 VLC_UNUSED(newval); VLC_UNUSED(p_data);
906 aout_instance_t *p_aout = (aout_instance_t *)p_this;
909 aout_lock_mixer( p_aout );
910 for( i = 0; i < p_aout->i_nb_inputs; i++ )
911 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
913 /* Restart the mixer (a trivial mixer may be in use) */
914 if( p_aout->p_mixer )
915 aout_MixerMultiplierSet( p_aout, p_aout->mixer_multiplier );
916 aout_unlock_mixer( p_aout );
921 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
923 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
924 "audio-replay-gain-mode" );
929 p_input->mixer.multiplier = 1.0;
931 if( !psz_replay_gain )
934 /* Find select mode */
935 if( !strcmp( psz_replay_gain, "track" ) )
936 i_mode = AUDIO_REPLAY_GAIN_TRACK;
937 else if( !strcmp( psz_replay_gain, "album" ) )
938 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
940 i_mode = AUDIO_REPLAY_GAIN_MAX;
942 /* If the select mode is not available, prefer the other one */
944 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
946 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
948 if( p_input->replay_gain.pb_gain[i_use] )
954 if( i_use != AUDIO_REPLAY_GAIN_MAX )
955 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
956 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
957 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
960 p_input->mixer.multiplier = pow( 10.0, f_gain / 20.0 );
963 if( p_input->replay_gain.pb_peak[i_use] &&
964 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
965 p_input->replay_gain.pf_peak[i_use] * p_input->mixer.multiplier > 1.0 )
967 p_input->mixer.multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
970 free( psz_replay_gain );