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>
40 #include <vlc_vout.h> /* for vout_Request */
48 #include "aout_internal.h"
50 #define AOUT_ASSERT_MIXER_LOCKED vlc_assert_locked( &p_aout->mixer_lock )
51 #define AOUT_ASSERT_INPUT_LOCKED vlc_assert_locked( &p_input->lock )
53 static void inputFailure( aout_instance_t *, aout_input_t *, const char * );
54 static void inputDrop( aout_input_t *, aout_buffer_t * );
55 static void inputResamplingStop( aout_input_t *p_input );
57 static int VisualizationCallback( vlc_object_t *, char const *,
58 vlc_value_t, vlc_value_t, void * );
59 static int EqualizerCallback( vlc_object_t *, char const *,
60 vlc_value_t, vlc_value_t, void * );
61 static int ReplayGainCallback( vlc_object_t *, char const *,
62 vlc_value_t, vlc_value_t, void * );
63 static void ReplayGainSelect( aout_instance_t *, aout_input_t * );
65 static vout_thread_t *RequestVout( void *,
66 vout_thread_t *, video_format_t *, bool );
67 static vout_thread_t *RequestVoutFromFilter( void *,
68 vout_thread_t *, video_format_t *, bool );
70 /*****************************************************************************
71 * aout_InputNew : allocate a new input and rework the filter pipeline
72 *****************************************************************************/
73 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t *p_request_vout )
75 audio_sample_format_t chain_input_format;
76 audio_sample_format_t chain_output_format;
77 vlc_value_t val, text;
78 char *psz_filters, *psz_visual, *psz_scaletempo;
81 aout_FormatPrint( p_aout, "input", &p_input->input );
83 p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
86 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->p_mixer->fmt.i_rate );
87 p_input->mixer.begin = NULL;
92 p_input->request_vout = *p_request_vout;
96 p_input->request_vout.pf_request_vout = RequestVout;
97 p_input->request_vout.p_private = p_aout;
100 /* Prepare format structure */
101 chain_input_format = p_input->input;
102 chain_output_format = p_aout->p_mixer->fmt;
103 chain_output_format.i_rate = p_input->input.i_rate;
104 aout_FormatPrepare( &chain_output_format );
106 /* Now add user filters */
107 if( var_Type( p_aout, "visual" ) == 0 )
109 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
110 text.psz_string = _("Visualizations");
111 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
112 val.psz_string = (char*)""; text.psz_string = _("Disable");
113 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
114 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
115 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
116 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
117 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
118 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
119 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
120 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
121 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
123 /* Look for goom plugin */
124 if( module_exists( "goom" ) )
126 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
127 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
130 /* Look for libprojectM plugin */
131 if( module_exists( "projectm" ) )
133 val.psz_string = (char*)"projectm"; text.psz_string = (char*)"projectM";
134 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
137 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
139 var_SetString( p_aout, "visual", val.psz_string );
140 free( val.psz_string );
142 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
145 if( var_Type( p_aout, "equalizer" ) == 0 )
147 module_config_t *p_config;
150 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
151 if( p_config && p_config->i_list )
153 var_Create( p_aout, "equalizer",
154 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
155 text.psz_string = _("Equalizer");
156 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
158 val.psz_string = (char*)""; text.psz_string = _("Disable");
159 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
161 for( i = 0; i < p_config->i_list; i++ )
163 val.psz_string = (char *)p_config->ppsz_list[i];
164 text.psz_string = (char *)p_config->ppsz_list_text[i];
165 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
169 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
173 if( var_Type( p_aout, "audio-filter" ) == 0 )
175 var_Create( p_aout, "audio-filter",
176 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
177 text.psz_string = _("Audio filters");
178 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
180 if( var_Type( p_aout, "audio-visual" ) == 0 )
182 var_Create( p_aout, "audio-visual",
183 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
184 text.psz_string = _("Audio visualizations");
185 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
188 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
190 module_config_t *p_config;
193 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
194 if( p_config && p_config->i_list )
196 var_Create( p_aout, "audio-replay-gain-mode",
197 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
199 text.psz_string = _("Replay gain");
200 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
202 for( i = 0; i < p_config->i_list; i++ )
204 val.psz_string = (char *)p_config->ppsz_list[i];
205 text.psz_string = (char *)p_config->ppsz_list_text[i];
206 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
210 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
213 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
215 var_Create( p_aout, "audio-replay-gain-preamp",
216 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
218 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
220 var_Create( p_aout, "audio-replay-gain-default",
221 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
223 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
225 var_Create( p_aout, "audio-replay-gain-peak-protection",
226 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
228 if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
230 var_Create( p_aout, "audio-time-stretch",
231 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
234 psz_filters = var_GetString( p_aout, "audio-filter" );
235 psz_visual = var_GetString( p_aout, "audio-visual");
236 psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
238 p_input->b_recycle_vout = psz_visual && *psz_visual;
240 /* parse user filter lists */
241 char *const ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
242 p_input->p_playback_rate_filter = NULL;
244 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
246 char *psz_next = NULL;
247 char *psz_parser = ppsz_array[i_visual];
249 if( psz_parser == NULL || !*psz_parser )
252 while( psz_parser && *psz_parser )
254 aout_filter_t * p_filter = NULL;
256 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
258 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
262 while( *psz_parser == ' ' && *psz_parser == ':' )
266 if( ( psz_next = strchr( psz_parser , ':' ) ) )
270 if( *psz_parser =='\0' )
275 /* Create a VLC object */
276 static const char typename[] = "audio filter";
277 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
278 VLC_OBJECT_GENERIC, typename );
279 if( p_filter == NULL )
281 msg_Err( p_aout, "cannot add user filter %s (skipped)",
283 psz_parser = psz_next;
287 vlc_object_set_name( p_filter, psz_parser );
288 vlc_object_attach( p_filter , p_aout );
290 p_filter->request_vout.pf_request_vout = RequestVoutFromFilter;
291 p_filter->request_vout.p_private = p_input;
293 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
294 p_filter->p_owner->p_aout = p_aout;
295 p_filter->p_owner->p_input = p_input;
298 memcpy( &p_filter->input, &chain_output_format,
299 sizeof(audio_sample_format_t) );
300 memcpy( &p_filter->output, &chain_output_format,
301 sizeof(audio_sample_format_t) );
304 /* try to find the requested filter */
305 if( i_visual == 2 ) /* this can only be a visualization module */
307 p_filter->p_module = module_need( p_filter, "visualization",
310 else /* this can be a audio filter module as well as a visualization module */
312 p_filter->p_module = module_need( p_filter, "audio filter",
315 if ( p_filter->p_module == NULL )
317 /* if the filter requested a special format, retry */
318 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
319 &chain_input_format )
320 && AOUT_FMTS_IDENTICAL( &p_filter->output,
321 &chain_output_format ) ) )
323 aout_FormatPrepare( &p_filter->input );
324 aout_FormatPrepare( &p_filter->output );
325 p_filter->p_module = module_need( p_filter,
329 /* try visual filters */
332 memcpy( &p_filter->input, &chain_output_format,
333 sizeof(audio_sample_format_t) );
334 memcpy( &p_filter->output, &chain_output_format,
335 sizeof(audio_sample_format_t) );
336 p_filter->p_module = module_need( p_filter,
344 if ( p_filter->p_module == NULL )
346 msg_Err( p_aout, "cannot add user filter %s (skipped)",
349 free( p_filter->p_owner );
350 vlc_object_detach( p_filter );
351 vlc_object_release( p_filter );
353 psz_parser = psz_next;
357 /* complete the filter chain if necessary */
358 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
360 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
361 &p_input->i_nb_filters,
363 &p_filter->input ) < 0 )
365 msg_Err( p_aout, "cannot add user filter %s (skipped)",
368 module_unneed( p_filter, p_filter->p_module );
369 free( p_filter->p_owner );
370 vlc_object_detach( p_filter );
371 vlc_object_release( p_filter );
373 psz_parser = psz_next;
379 p_filter->b_continuity = false;
380 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
381 memcpy( &chain_input_format, &p_filter->output,
382 sizeof( audio_sample_format_t ) );
384 if( i_visual == 0 ) /* scaletempo */
385 p_input->p_playback_rate_filter = p_filter;
387 /* next filter if any */
388 psz_parser = psz_next;
393 free( psz_scaletempo );
395 /* complete the filter chain if necessary */
396 if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
398 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
399 &p_input->i_nb_filters,
401 &chain_output_format ) < 0 )
403 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
408 /* Prepare hints for the buffer allocator. */
409 p_input->input_alloc.b_alloc = true;
410 p_input->input_alloc.i_bytes_per_sec = -1;
412 /* Create resamplers. */
413 if ( !AOUT_FMT_NON_LINEAR( &p_aout->p_mixer->fmt ) )
415 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
416 p_aout->p_mixer->fmt.i_rate)
417 * (100 + AOUT_MAX_RESAMPLING)) / 100;
418 if ( chain_output_format.i_rate == p_aout->p_mixer->fmt.i_rate )
420 /* Just in case... */
421 chain_output_format.i_rate++;
423 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
424 &p_input->i_nb_resamplers,
425 &chain_output_format,
426 &p_aout->p_mixer->fmt ) < 0 )
428 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
432 aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
433 p_input->i_nb_resamplers,
434 &p_input->input_alloc );
435 p_input->input_alloc.b_alloc = true;
437 /* Setup the initial rate of the resampler */
438 p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
440 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
442 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
444 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
447 aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
448 p_input->i_nb_filters,
449 &p_input->input_alloc );
450 p_input->input_alloc.b_alloc = true;
452 /* i_bytes_per_sec is still == -1 if no filters */
453 p_input->input_alloc.i_bytes_per_sec = __MAX(
454 p_input->input_alloc.i_bytes_per_sec,
455 (int)(p_input->input.i_bytes_per_frame
456 * p_input->input.i_rate
457 / p_input->input.i_frame_length) );
459 ReplayGainSelect( p_aout, p_input );
462 p_input->b_error = false;
463 p_input->b_restart = false;
464 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
469 /*****************************************************************************
470 * aout_InputDelete : delete an input
471 *****************************************************************************
472 * This function must be entered with the mixer lock.
473 *****************************************************************************/
474 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
476 AOUT_ASSERT_MIXER_LOCKED;
477 if ( p_input->b_error )
480 /* XXX We need to update b_recycle_vout before calling aout_FiltersDestroyPipeline.
481 * FIXME They can be a race condition if audio-visual is updated between
482 * aout_InputDelete and aout_InputNew.
484 char *psz_visual = var_GetString( p_aout, "audio-visual");
485 p_input->b_recycle_vout = psz_visual && *psz_visual;
488 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
489 p_input->i_nb_filters );
490 p_input->i_nb_filters = 0;
491 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
492 p_input->i_nb_resamplers );
493 p_input->i_nb_resamplers = 0;
494 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
499 /*****************************************************************************
500 * aout_InputPlay : play a buffer
501 *****************************************************************************
502 * This function must be entered with the input lock.
503 *****************************************************************************/
504 /* XXX Do not activate it !! */
505 //#define AOUT_PROCESS_BEFORE_CHEKS
506 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
507 aout_buffer_t * p_buffer, int i_input_rate )
510 AOUT_ASSERT_INPUT_LOCKED;
512 if( p_input->b_restart )
515 uint8_t *p_first_byte_to_mix;
517 mtime_t i_pause_date;
519 aout_lock_mixer( p_aout );
520 aout_lock_input_fifos( p_aout );
522 /* A little trick to avoid loosing our input fifo and properties */
524 p_first_byte_to_mix = p_input->mixer.begin;
525 fifo = p_input->mixer.fifo;
526 b_paused = p_input->b_paused;
527 i_pause_date = p_input->i_pause_date;
529 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->p_mixer->fmt.i_rate );
531 aout_InputDelete( p_aout, p_input );
533 aout_InputNew( p_aout, p_input, &p_input->request_vout );
534 p_input->mixer.begin = p_first_byte_to_mix;
535 p_input->mixer.fifo = fifo;
536 p_input->b_paused = b_paused;
537 p_input->i_pause_date = i_pause_date;
539 aout_unlock_input_fifos( p_aout );
540 aout_unlock_mixer( p_aout );
543 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
545 inputDrop( p_input, p_buffer );
549 #ifdef AOUT_PROCESS_BEFORE_CHEKS
550 /* Run pre-filters. */
551 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
554 /* Actually run the resampler now. */
555 if ( p_input->i_nb_resamplers > 0 )
557 const mtime_t i_date = p_buffer->start_date;
558 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
559 p_input->i_nb_resamplers,
563 if( p_buffer->i_nb_samples <= 0 )
565 aout_BufferFree( p_buffer );
570 /* Handle input rate change, but keep drift correction */
571 if( i_input_rate != p_input->i_last_input_rate )
573 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->input.i_rate;
574 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
575 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
576 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
578 p_input->i_last_input_rate = i_input_rate;
581 /* We don't care if someone changes the start date behind our back after
582 * this. We'll deal with that when pushing the buffer, and compensate
583 * with the next incoming buffer. */
584 aout_lock_input_fifos( p_aout );
585 start_date = aout_FifoNextStart( p_aout, &p_input->mixer.fifo );
586 aout_unlock_input_fifos( p_aout );
588 if ( start_date != 0 && start_date < mdate() )
590 /* The decoder is _very_ late. This can only happen if the user
591 * pauses the stream (or if the decoder is buggy, which cannot
593 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
594 "clearing out", mdate() - start_date );
595 aout_lock_input_fifos( p_aout );
596 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
597 p_input->mixer.begin = NULL;
598 aout_unlock_input_fifos( p_aout );
599 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
600 msg_Warn( p_aout, "timing screwed, stopping resampling" );
601 inputResamplingStop( p_input );
605 if ( p_buffer->start_date < mdate() + AOUT_MIN_PREPARE_TIME )
607 /* The decoder gives us f*cked up PTS. It's its business, but we
608 * can't present it anyway, so drop the buffer. */
609 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
610 mdate() - p_buffer->start_date );
612 inputDrop( p_input, p_buffer );
613 inputResamplingStop( p_input );
617 /* If the audio drift is too big then it's not worth trying to resample
619 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
620 if ( start_date != 0 &&
621 ( start_date < p_buffer->start_date - i_pts_tolerance ) )
623 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
624 start_date - p_buffer->start_date );
625 aout_lock_input_fifos( p_aout );
626 aout_FifoSet( p_aout, &p_input->mixer.fifo, 0 );
627 p_input->mixer.begin = NULL;
628 aout_unlock_input_fifos( p_aout );
629 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
630 msg_Warn( p_aout, "timing screwed, stopping resampling" );
631 inputResamplingStop( p_input );
634 else if ( start_date != 0 &&
635 ( start_date > p_buffer->start_date + i_pts_tolerance) )
637 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
638 start_date - p_buffer->start_date );
639 inputDrop( p_input, p_buffer );
643 if ( start_date == 0 ) start_date = p_buffer->start_date;
645 #ifndef AOUT_PROCESS_BEFORE_CHEKS
646 /* Run pre-filters. */
647 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
651 /* Run the resampler if needed.
652 * We first need to calculate the output rate of this resampler. */
653 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
654 ( start_date < p_buffer->start_date - AOUT_PTS_TOLERANCE
655 || start_date > p_buffer->start_date + AOUT_PTS_TOLERANCE ) &&
656 p_input->i_nb_resamplers > 0 )
658 /* Can happen in several circumstances :
659 * 1. A problem at the input (clock drift)
660 * 2. A small pause triggered by the user
661 * 3. Some delay in the output stage, causing a loss of lip
663 * Solution : resample the buffer to avoid a scratch.
665 mtime_t drift = p_buffer->start_date - start_date;
667 p_input->i_resamp_start_date = mdate();
668 p_input->i_resamp_start_drift = (int)drift;
671 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
673 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
675 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
676 drift > 0 ? drift : -drift,
677 drift > 0 ? "in advance" : "late",
678 drift > 0 ? "down" : "up");
681 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
683 /* Resampling has been triggered previously (because of dates
684 * mismatch). We want the resampling to happen progressively so
685 * it isn't too audible to the listener. */
687 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
689 p_input->pp_resamplers[0]->input.i_rate += 2; /* Hz */
693 p_input->pp_resamplers[0]->input.i_rate -= 2; /* Hz */
696 /* Check if everything is back to normal, in which case we can stop the
698 unsigned int i_nominal_rate =
699 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
700 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
701 : p_input->input.i_rate;
702 if( p_input->pp_resamplers[0]->input.i_rate == i_nominal_rate )
704 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
705 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
706 "(drift: %"PRIi64")",
707 mdate() - p_input->i_resamp_start_date,
708 p_buffer->start_date - start_date);
710 else if( abs( (int)(p_buffer->start_date - start_date) ) <
711 abs( p_input->i_resamp_start_drift ) / 2 )
713 /* if we reduced the drift from half, then it is time to switch
714 * back the resampling direction. */
715 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
716 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
718 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
719 p_input->i_resamp_start_drift = 0;
721 else if( p_input->i_resamp_start_drift &&
722 ( abs( (int)(p_buffer->start_date - start_date) ) >
723 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
725 /* If the drift is increasing and not decreasing, than something
726 * is bad. We'd better stop the resampling right now. */
727 msg_Warn( p_aout, "timing screwed, stopping resampling" );
728 inputResamplingStop( p_input );
732 #ifndef AOUT_PROCESS_BEFORE_CHEKS
733 /* Actually run the resampler now. */
734 if ( p_input->i_nb_resamplers > 0 )
736 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
737 p_input->i_nb_resamplers,
741 if( p_buffer->i_nb_samples <= 0 )
743 aout_BufferFree( p_buffer );
748 /* Adding the start date will be managed by aout_FifoPush(). */
749 p_buffer->end_date = start_date +
750 (p_buffer->end_date - p_buffer->start_date);
751 p_buffer->start_date = start_date;
753 aout_lock_input_fifos( p_aout );
754 aout_FifoPush( p_aout, &p_input->mixer.fifo, p_buffer );
755 aout_unlock_input_fifos( p_aout );
759 /*****************************************************************************
761 *****************************************************************************/
763 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
764 const char * psz_error_message )
767 msg_Err( p_aout, "%s", psz_error_message );
770 aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
771 p_input->i_nb_filters );
772 aout_FiltersDestroyPipeline( p_aout, p_input->pp_resamplers,
773 p_input->i_nb_resamplers );
774 aout_FifoDestroy( p_aout, &p_input->mixer.fifo );
775 var_Destroy( p_aout, "visual" );
776 var_Destroy( p_aout, "equalizer" );
777 var_Destroy( p_aout, "audio-filter" );
778 var_Destroy( p_aout, "audio-visual" );
780 var_Destroy( p_aout, "audio-replay-gain-mode" );
781 var_Destroy( p_aout, "audio-replay-gain-default" );
782 var_Destroy( p_aout, "audio-replay-gain-preamp" );
783 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
786 p_input->b_error = 1;
789 static void inputDrop( aout_input_t *p_input, aout_buffer_t *p_buffer )
791 aout_BufferFree( p_buffer );
793 p_input->i_buffer_lost++;
796 static void inputResamplingStop( aout_input_t *p_input )
798 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
799 if( p_input->i_nb_resamplers != 0 )
801 p_input->pp_resamplers[0]->input.i_rate =
802 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
803 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
804 : p_input->input.i_rate;
805 p_input->pp_resamplers[0]->b_continuity = false;
809 static vout_thread_t *RequestVout( void *p_private,
810 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
812 aout_instance_t *p_aout = p_private;
813 VLC_UNUSED(b_recycle);
814 return vout_Request( p_aout, p_vout, p_fmt );
817 static vout_thread_t *RequestVoutFromFilter( void *p_private,
818 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
820 aout_input_t *p_input = p_private;
821 aout_request_vout_t *p_request = &p_input->request_vout;
823 return p_request->pf_request_vout( p_request->p_private,
824 p_vout, p_fmt, p_input->b_recycle_vout && b_recycle );
827 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
828 const char *psz_name, bool b_add )
830 return AoutChangeFilterString( VLC_OBJECT(p_aout), p_aout,
831 psz_variable, psz_name, b_add ) ? 1 : 0;
834 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
835 vlc_value_t oldval, vlc_value_t newval, void *p_data )
837 aout_instance_t *p_aout = (aout_instance_t *)p_this;
838 char *psz_mode = newval.psz_string;
839 (void)psz_cmd; (void)oldval; (void)p_data;
841 if( !psz_mode || !*psz_mode )
843 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
844 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
845 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
849 if( !strcmp( "goom", psz_mode ) )
851 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
852 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
853 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
855 else if( !strcmp( "projectm", psz_mode ) )
857 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
858 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
859 ChangeFiltersString( p_aout, "audio-visual", "projectm", true );
863 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
864 var_SetString( p_aout, "effect-list", psz_mode );
866 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
867 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
868 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
873 AoutInputsMarkToRestart( p_aout );
878 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
879 vlc_value_t oldval, vlc_value_t newval, void *p_data )
881 aout_instance_t *p_aout = (aout_instance_t *)p_this;
882 char *psz_mode = newval.psz_string;
884 (void)psz_cmd; (void)oldval; (void)p_data;
886 if( !psz_mode || !*psz_mode )
888 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
893 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
894 var_SetString( p_aout, "equalizer-preset", psz_mode );
895 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
901 AoutInputsMarkToRestart( p_aout );
905 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
906 vlc_value_t oldval, vlc_value_t newval, void *p_data )
908 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
909 VLC_UNUSED(newval); VLC_UNUSED(p_data);
910 aout_instance_t *p_aout = (aout_instance_t *)p_this;
913 aout_lock_mixer( p_aout );
914 for( i = 0; i < p_aout->i_nb_inputs; i++ )
915 ReplayGainSelect( p_aout, p_aout->pp_inputs[i] );
917 /* Restart the mixer (a trivial mixer may be in use) */
918 if( p_aout->p_mixer )
919 aout_MixerMultiplierSet( p_aout, p_aout->mixer_multiplier );
920 aout_unlock_mixer( p_aout );
925 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
927 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
928 "audio-replay-gain-mode" );
933 p_input->mixer.multiplier = 1.0;
935 if( !psz_replay_gain )
938 /* Find select mode */
939 if( !strcmp( psz_replay_gain, "track" ) )
940 i_mode = AUDIO_REPLAY_GAIN_TRACK;
941 else if( !strcmp( psz_replay_gain, "album" ) )
942 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
944 i_mode = AUDIO_REPLAY_GAIN_MAX;
946 /* If the select mode is not available, prefer the other one */
948 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
950 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
952 if( p_input->replay_gain.pb_gain[i_use] )
958 if( i_use != AUDIO_REPLAY_GAIN_MAX )
959 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
960 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
961 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
964 p_input->mixer.multiplier = pow( 10.0, f_gain / 20.0 );
967 if( p_input->replay_gain.pb_peak[i_use] &&
968 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
969 p_input->replay_gain.pf_peak[i_use] * p_input->mixer.multiplier > 1.0 )
971 p_input->mixer.multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
974 free( psz_replay_gain );