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 */
43 #include <vlc_modules.h>
46 #include <vlc_filter.h>
49 #include "aout_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_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 * );
66 static vout_thread_t *RequestVout( 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 );
90 p_input->request_vout = *p_request_vout;
94 p_input->request_vout.pf_request_vout = RequestVout;
95 p_input->request_vout.p_private = p_aout;
98 /* Prepare format structure */
99 chain_input_format = p_input->input;
100 chain_output_format = p_aout->mixer_format;
101 chain_output_format.i_rate = p_input->input.i_rate;
102 aout_FormatPrepare( &chain_output_format );
104 /* Now add user filters */
105 if( var_Type( p_aout, "visual" ) == 0 )
107 var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
108 text.psz_string = _("Visualizations");
109 var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
110 val.psz_string = (char*)""; text.psz_string = _("Disable");
111 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
112 val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
113 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
114 val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
115 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
116 val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
117 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
118 val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
119 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
121 /* Look for goom plugin */
122 if( module_exists( "goom" ) )
124 val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
125 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
128 /* Look for libprojectM plugin */
129 if( module_exists( "projectm" ) )
131 val.psz_string = (char*)"projectm"; text.psz_string = (char*)"projectM";
132 var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
135 if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
137 var_SetString( p_aout, "visual", val.psz_string );
138 free( val.psz_string );
140 var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
143 if( var_Type( p_aout, "equalizer" ) == 0 )
145 module_config_t *p_config;
148 p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
149 if( p_config && p_config->i_list )
151 var_Create( p_aout, "equalizer",
152 VLC_VAR_STRING | VLC_VAR_HASCHOICE );
153 text.psz_string = _("Equalizer");
154 var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
156 val.psz_string = (char*)""; text.psz_string = _("Disable");
157 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
159 for( i = 0; i < p_config->i_list; i++ )
161 val.psz_string = (char *)p_config->ppsz_list[i];
162 text.psz_string = (char *)p_config->ppsz_list_text[i];
163 var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
167 var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
171 if( var_Type( p_aout, "audio-filter" ) == 0 )
173 var_Create( p_aout, "audio-filter",
174 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
175 text.psz_string = _("Audio filters");
176 var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
178 if( var_Type( p_aout, "audio-visual" ) == 0 )
180 var_Create( p_aout, "audio-visual",
181 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
182 text.psz_string = _("Audio visualizations");
183 var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
186 if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
188 module_config_t *p_config;
191 p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
192 if( p_config && p_config->i_list )
194 var_Create( p_aout, "audio-replay-gain-mode",
195 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
197 text.psz_string = _("Replay gain");
198 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
200 for( i = 0; i < p_config->i_list; i++ )
202 val.psz_string = (char *)p_config->ppsz_list[i];
203 text.psz_string = (char *)p_config->ppsz_list_text[i];
204 var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
208 var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
211 if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
213 var_Create( p_aout, "audio-replay-gain-preamp",
214 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
216 if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
218 var_Create( p_aout, "audio-replay-gain-default",
219 VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
221 if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
223 var_Create( p_aout, "audio-replay-gain-peak-protection",
224 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
227 psz_filters = var_GetString( p_aout, "audio-filter" );
228 psz_visual = var_GetString( p_aout, "audio-visual");
229 psz_scaletempo = var_InheritBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
231 p_input->b_recycle_vout = psz_visual && *psz_visual;
233 /* parse user filter lists */
234 char *const ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
235 p_input->p_playback_rate_filter = NULL;
237 for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
239 char *psz_next = NULL;
240 char *psz_parser = ppsz_array[i_visual];
242 if( psz_parser == NULL || !*psz_parser )
245 while( psz_parser && *psz_parser )
247 filter_t * p_filter = NULL;
249 if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
251 msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
255 while( *psz_parser == ' ' && *psz_parser == ':' )
259 if( ( psz_next = strchr( psz_parser , ':' ) ) )
263 if( *psz_parser =='\0' )
268 /* Create a VLC object */
269 static const char typename[] = "audio filter";
270 p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
271 VLC_OBJECT_GENERIC, typename );
272 if( p_filter == NULL )
274 msg_Err( p_aout, "cannot add user filter %s (skipped)",
276 psz_parser = psz_next;
280 p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
281 p_filter->p_owner->p_aout = p_aout;
282 p_filter->p_owner->p_input = p_input;
285 memcpy( &p_filter->fmt_in.audio, &chain_output_format,
286 sizeof(audio_sample_format_t) );
287 p_filter->fmt_in.i_codec = chain_output_format.i_format;
288 memcpy( &p_filter->fmt_out.audio, &chain_output_format,
289 sizeof(audio_sample_format_t) );
290 p_filter->fmt_out.i_codec = chain_output_format.i_format;
291 p_filter->pf_audio_buffer_new = aout_FilterBufferNew;
293 /* try to find the requested filter */
294 if( i_visual == 2 ) /* this can only be a visualization module */
296 p_filter->p_module = module_need( p_filter, "visualization2",
299 else /* this can be a audio filter module as well as a visualization module */
301 p_filter->p_module = module_need( p_filter, "audio filter",
304 if ( p_filter->p_module == NULL )
306 /* if the filter requested a special format, retry */
307 if ( !( AOUT_FMTS_IDENTICAL( &p_filter->fmt_in.audio,
308 &chain_input_format )
309 && AOUT_FMTS_IDENTICAL( &p_filter->fmt_out.audio,
310 &chain_output_format ) ) )
312 aout_FormatPrepare( &p_filter->fmt_in.audio );
313 aout_FormatPrepare( &p_filter->fmt_out.audio );
314 p_filter->p_module = module_need( p_filter,
318 /* try visual filters */
321 memcpy( &p_filter->fmt_in.audio, &chain_output_format,
322 sizeof(audio_sample_format_t) );
323 memcpy( &p_filter->fmt_out.audio, &chain_output_format,
324 sizeof(audio_sample_format_t) );
325 p_filter->p_module = module_need( p_filter,
333 if ( p_filter->p_module == NULL )
335 msg_Err( p_aout, "cannot add user filter %s (skipped)",
338 free( p_filter->p_owner );
339 vlc_object_release( p_filter );
341 psz_parser = psz_next;
345 /* complete the filter chain if necessary */
346 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
347 &p_input->i_nb_filters,
349 &p_filter->fmt_in.audio ) < 0 )
351 msg_Err( p_aout, "cannot add user filter %s (skipped)",
354 module_unneed( p_filter, p_filter->p_module );
355 free( p_filter->p_owner );
356 vlc_object_release( p_filter );
358 psz_parser = psz_next;
363 p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
364 memcpy( &chain_input_format, &p_filter->fmt_out.audio,
365 sizeof( audio_sample_format_t ) );
367 if( i_visual == 0 ) /* scaletempo */
368 p_input->p_playback_rate_filter = p_filter;
370 /* next filter if any */
371 psz_parser = psz_next;
376 free( psz_scaletempo );
378 /* complete the filter chain if necessary */
379 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
380 &p_input->i_nb_filters,
382 &chain_output_format ) < 0 )
384 inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
388 /* Create resamplers. */
389 if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer_format ) )
391 chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
392 p_aout->mixer_format.i_rate)
393 * (100 + AOUT_MAX_RESAMPLING)) / 100;
394 if ( chain_output_format.i_rate == p_aout->mixer_format.i_rate )
396 /* Just in case... */
397 chain_output_format.i_rate++;
399 if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
400 &p_input->i_nb_resamplers,
401 &chain_output_format,
402 &p_aout->mixer_format ) < 0 )
404 inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
408 /* Setup the initial rate of the resampler */
409 p_input->pp_resamplers[0]->fmt_in.audio.i_rate = p_input->input.i_rate;
411 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
413 if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
415 p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
418 ReplayGainSelect( p_aout, p_input );
421 p_input->b_error = false;
422 p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
427 /*****************************************************************************
428 * aout_InputDelete : delete an input
429 *****************************************************************************
430 * This function must be entered with the mixer lock.
431 *****************************************************************************/
432 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
434 AOUT_ASSERT_MIXER_LOCKED;
435 if ( p_input->b_error )
438 /* XXX We need to update b_recycle_vout before calling aout_FiltersDestroyPipeline.
439 * FIXME They can be a race condition if audio-visual is updated between
440 * aout_InputDelete and aout_InputNew.
442 char *psz_visual = var_GetString( p_aout, "audio-visual");
443 p_input->b_recycle_vout = psz_visual && *psz_visual;
446 aout_FiltersDestroyPipeline( p_input->pp_filters, p_input->i_nb_filters );
447 p_input->i_nb_filters = 0;
448 aout_FiltersDestroyPipeline( p_input->pp_resamplers,
449 p_input->i_nb_resamplers );
450 p_input->i_nb_resamplers = 0;
451 aout_FifoDestroy( &p_input->mixer.fifo );
456 /*****************************************************************************
457 * aout_InputCheckAndRestart : restart an input
458 *****************************************************************************
459 * This function must be entered with the input and mixer lock.
460 *****************************************************************************/
461 void aout_InputCheckAndRestart( aout_instance_t * p_aout, aout_input_t * p_input )
463 AOUT_ASSERT_MIXER_LOCKED;
464 AOUT_ASSERT_INPUT_LOCKED;
466 if( !p_input->b_restart )
469 aout_lock_input_fifos( p_aout );
471 /* A little trick to avoid loosing our input fifo and properties */
473 aout_fifo_t fifo = p_input->mixer.fifo;
474 bool b_paused = p_input->b_paused;
475 mtime_t i_pause_date = p_input->i_pause_date;
477 aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->mixer_format.i_rate );
479 aout_InputDelete( p_aout, p_input );
481 aout_InputNew( p_aout, p_input, &p_input->request_vout );
482 p_input->mixer.fifo = fifo;
483 p_input->b_paused = b_paused;
484 p_input->i_pause_date = i_pause_date;
486 p_input->b_restart = false;
488 aout_unlock_input_fifos( p_aout );
490 /*****************************************************************************
491 * aout_InputPlay : play a buffer
492 *****************************************************************************
493 * This function must be entered with the input lock.
494 *****************************************************************************/
495 /* XXX Do not activate it !! */
496 //#define AOUT_PROCESS_BEFORE_CHEKS
497 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
498 aout_buffer_t * p_buffer, int i_input_rate )
501 AOUT_ASSERT_INPUT_LOCKED;
503 if( i_input_rate != INPUT_RATE_DEFAULT && p_input->p_playback_rate_filter == NULL )
505 inputDrop( p_input, p_buffer );
509 #ifdef AOUT_PROCESS_BEFORE_CHEKS
510 /* Run pre-filters. */
511 aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
516 /* Actually run the resampler now. */
517 if ( p_input->i_nb_resamplers > 0 )
519 const mtime_t i_date = p_buffer->i_pts;
520 aout_FiltersPlay( p_aout, p_input->pp_resamplers,
521 p_input->i_nb_resamplers,
527 if( p_buffer->i_nb_samples <= 0 )
529 block_Release( p_buffer );
534 /* Handle input rate change, but keep drift correction */
535 if( i_input_rate != p_input->i_last_input_rate )
537 unsigned int * const pi_rate = &p_input->p_playback_rate_filter->fmt_in.audio.i_rate;
538 #define F(r,ir) ( INPUT_RATE_DEFAULT * (r) / (ir) )
539 const int i_delta = *pi_rate - F(p_input->input.i_rate,p_input->i_last_input_rate);
540 *pi_rate = F(p_input->input.i_rate + i_delta, i_input_rate);
542 p_input->i_last_input_rate = i_input_rate;
545 /* We don't care if someone changes the start date behind our back after
546 * this. We'll deal with that when pushing the buffer, and compensate
547 * with the next incoming buffer. */
548 aout_lock_input_fifos( p_aout );
549 start_date = aout_FifoNextStart( &p_input->mixer.fifo );
550 aout_unlock_input_fifos( p_aout );
552 if ( start_date != 0 && start_date < mdate() )
554 /* The decoder is _very_ late. This can only happen if the user
555 * pauses the stream (or if the decoder is buggy, which cannot
557 msg_Warn( p_aout, "computed PTS is out of range (%"PRId64"), "
558 "clearing out", mdate() - start_date );
559 aout_lock_input_fifos( p_aout );
560 aout_FifoSet( &p_input->mixer.fifo, 0 );
561 aout_unlock_input_fifos( p_aout );
562 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
563 msg_Warn( p_aout, "timing screwed, stopping resampling" );
564 inputResamplingStop( p_input );
565 p_buffer->i_flags |= BLOCK_FLAG_DISCONTINUITY;
569 if ( p_buffer->i_pts < mdate() + AOUT_MIN_PREPARE_TIME )
571 /* The decoder gives us f*cked up PTS. It's its business, but we
572 * can't present it anyway, so drop the buffer. */
573 msg_Warn( p_aout, "PTS is out of range (%"PRId64"), dropping buffer",
574 mdate() - p_buffer->i_pts );
576 inputDrop( p_input, p_buffer );
577 inputResamplingStop( p_input );
581 /* If the audio drift is too big then it's not worth trying to resample
583 mtime_t i_pts_tolerance = 3 * AOUT_PTS_TOLERANCE * i_input_rate / INPUT_RATE_DEFAULT;
584 if ( start_date != 0 &&
585 ( start_date < p_buffer->i_pts - i_pts_tolerance ) )
587 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), clearing out",
588 start_date - p_buffer->i_pts );
589 aout_lock_input_fifos( p_aout );
590 aout_FifoSet( &p_input->mixer.fifo, 0 );
591 aout_unlock_input_fifos( p_aout );
592 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
593 msg_Warn( p_aout, "timing screwed, stopping resampling" );
594 inputResamplingStop( p_input );
595 p_buffer->i_flags |= BLOCK_FLAG_DISCONTINUITY;
598 else if ( start_date != 0 &&
599 ( start_date > p_buffer->i_pts + i_pts_tolerance) )
601 msg_Warn( p_aout, "audio drift is too big (%"PRId64"), dropping buffer",
602 start_date - p_buffer->i_pts );
603 inputDrop( p_input, p_buffer );
607 if ( start_date == 0 ) start_date = p_buffer->i_pts;
609 #ifndef AOUT_PROCESS_BEFORE_CHEKS
610 /* Run pre-filters. */
611 aout_FiltersPlay( p_input->pp_filters, p_input->i_nb_filters, &p_buffer );
616 /* Run the resampler if needed.
617 * We first need to calculate the output rate of this resampler. */
618 if ( ( p_input->i_resampling_type == AOUT_RESAMPLING_NONE ) &&
619 ( start_date < p_buffer->i_pts - AOUT_PTS_TOLERANCE
620 || start_date > p_buffer->i_pts + AOUT_PTS_TOLERANCE ) &&
621 p_input->i_nb_resamplers > 0 )
623 /* Can happen in several circumstances :
624 * 1. A problem at the input (clock drift)
625 * 2. A small pause triggered by the user
626 * 3. Some delay in the output stage, causing a loss of lip
628 * Solution : resample the buffer to avoid a scratch.
630 mtime_t drift = p_buffer->i_pts - start_date;
632 p_input->i_resamp_start_date = mdate();
633 p_input->i_resamp_start_drift = (int)drift;
636 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
638 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
640 msg_Warn( p_aout, "buffer is %"PRId64" %s, triggering %ssampling",
641 drift > 0 ? drift : -drift,
642 drift > 0 ? "in advance" : "late",
643 drift > 0 ? "down" : "up");
646 if ( p_input->i_resampling_type != AOUT_RESAMPLING_NONE )
648 /* Resampling has been triggered previously (because of dates
649 * mismatch). We want the resampling to happen progressively so
650 * it isn't too audible to the listener. */
652 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
654 p_input->pp_resamplers[0]->fmt_in.audio.i_rate += 2; /* Hz */
658 p_input->pp_resamplers[0]->fmt_in.audio.i_rate -= 2; /* Hz */
661 /* Check if everything is back to normal, in which case we can stop the
663 unsigned int i_nominal_rate =
664 (p_input->pp_resamplers[0] == p_input->p_playback_rate_filter)
665 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / i_input_rate
666 : p_input->input.i_rate;
667 if( p_input->pp_resamplers[0]->fmt_in.audio.i_rate == i_nominal_rate )
669 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
670 msg_Warn( p_aout, "resampling stopped after %"PRIi64" usec "
671 "(drift: %"PRIi64")",
672 mdate() - p_input->i_resamp_start_date,
673 p_buffer->i_pts - start_date);
675 else if( abs( (int)(p_buffer->i_pts - start_date) ) <
676 abs( p_input->i_resamp_start_drift ) / 2 )
678 /* if we reduced the drift from half, then it is time to switch
679 * back the resampling direction. */
680 if( p_input->i_resampling_type == AOUT_RESAMPLING_UP )
681 p_input->i_resampling_type = AOUT_RESAMPLING_DOWN;
683 p_input->i_resampling_type = AOUT_RESAMPLING_UP;
684 p_input->i_resamp_start_drift = 0;
686 else if( p_input->i_resamp_start_drift &&
687 ( abs( (int)(p_buffer->i_pts - start_date) ) >
688 abs( p_input->i_resamp_start_drift ) * 3 / 2 ) )
690 /* If the drift is increasing and not decreasing, than something
691 * is bad. We'd better stop the resampling right now. */
692 msg_Warn( p_aout, "timing screwed, stopping resampling" );
693 inputResamplingStop( p_input );
694 p_buffer->i_flags |= BLOCK_FLAG_DISCONTINUITY;
698 #ifndef AOUT_PROCESS_BEFORE_CHEKS
699 /* Actually run the resampler now. */
700 if ( p_input->i_nb_resamplers > 0 )
702 aout_FiltersPlay( p_input->pp_resamplers, p_input->i_nb_resamplers,
708 if( p_buffer->i_nb_samples <= 0 )
710 block_Release( p_buffer );
715 /* Adding the start date will be managed by aout_FifoPush(). */
716 p_buffer->i_pts = start_date;
718 aout_lock_input_fifos( p_aout );
719 aout_FifoPush( &p_input->mixer.fifo, p_buffer );
720 aout_unlock_input_fifos( p_aout );
724 /*****************************************************************************
726 *****************************************************************************/
728 static void inputFailure( aout_instance_t * p_aout, aout_input_t * p_input,
729 const char * psz_error_message )
732 msg_Err( p_aout, "%s", psz_error_message );
735 aout_FiltersDestroyPipeline( p_input->pp_filters, p_input->i_nb_filters );
736 aout_FiltersDestroyPipeline( p_input->pp_resamplers,
737 p_input->i_nb_resamplers );
738 aout_FifoDestroy( &p_input->mixer.fifo );
739 var_Destroy( p_aout, "visual" );
740 var_Destroy( p_aout, "equalizer" );
741 var_Destroy( p_aout, "audio-filter" );
742 var_Destroy( p_aout, "audio-visual" );
744 var_Destroy( p_aout, "audio-replay-gain-mode" );
745 var_Destroy( p_aout, "audio-replay-gain-default" );
746 var_Destroy( p_aout, "audio-replay-gain-preamp" );
747 var_Destroy( p_aout, "audio-replay-gain-peak-protection" );
750 p_input->b_error = 1;
753 static void inputDrop( aout_input_t *p_input, aout_buffer_t *p_buffer )
755 aout_BufferFree( p_buffer );
757 p_input->i_buffer_lost++;
760 static void inputResamplingStop( aout_input_t *p_input )
762 p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
763 if( p_input->i_nb_resamplers != 0 )
765 p_input->pp_resamplers[0]->fmt_in.audio.i_rate =
766 ( p_input->pp_resamplers[0] == p_input->p_playback_rate_filter )
767 ? INPUT_RATE_DEFAULT * p_input->input.i_rate / p_input->i_last_input_rate
768 : p_input->input.i_rate;
772 static vout_thread_t *RequestVout( void *p_private,
773 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
775 aout_instance_t *p_aout = p_private;
776 VLC_UNUSED(b_recycle);
777 vout_configuration_t cfg = {
784 return vout_Request( p_aout, &cfg );
787 vout_thread_t *aout_filter_RequestVout( filter_t *p_filter,
788 vout_thread_t *p_vout, video_format_t *p_fmt )
790 aout_input_t *p_input = p_filter->p_owner->p_input;
791 aout_request_vout_t *p_request = &p_input->request_vout;
793 /* XXX: this only works from audio input */
794 /* If you want to use visualization filters from another place, you will
795 * need to add a new pf_aout_request_vout callback or store a pointer
796 * to aout_request_vout_t inside filter_t (i.e. a level of indirection). */
798 return p_request->pf_request_vout( p_request->p_private,
799 p_vout, p_fmt, p_input->b_recycle_vout );
802 static int ChangeFiltersString( aout_instance_t * p_aout, const char* psz_variable,
803 const char *psz_name, bool b_add )
805 return aout_ChangeFilterString( VLC_OBJECT(p_aout), p_aout,
806 psz_variable, psz_name, b_add ) ? 1 : 0;
809 static int VisualizationCallback( vlc_object_t *p_this, char const *psz_cmd,
810 vlc_value_t oldval, vlc_value_t newval, void *p_data )
812 aout_instance_t *p_aout = (aout_instance_t *)p_this;
813 char *psz_mode = newval.psz_string;
814 (void)psz_cmd; (void)oldval; (void)p_data;
816 if( !psz_mode || !*psz_mode )
818 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
819 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
820 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
824 if( !strcmp( "goom", psz_mode ) )
826 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
827 ChangeFiltersString( p_aout, "audio-visual", "goom", true );
828 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
830 else if( !strcmp( "projectm", psz_mode ) )
832 ChangeFiltersString( p_aout, "audio-visual", "visual", false );
833 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
834 ChangeFiltersString( p_aout, "audio-visual", "projectm", true );
838 var_Create( p_aout, "effect-list", VLC_VAR_STRING );
839 var_SetString( p_aout, "effect-list", psz_mode );
841 ChangeFiltersString( p_aout, "audio-visual", "goom", false );
842 ChangeFiltersString( p_aout, "audio-visual", "visual", true );
843 ChangeFiltersString( p_aout, "audio-visual", "projectm", false );
848 AoutInputsMarkToRestart( p_aout );
853 static int EqualizerCallback( vlc_object_t *p_this, char const *psz_cmd,
854 vlc_value_t oldval, vlc_value_t newval, void *p_data )
856 aout_instance_t *p_aout = (aout_instance_t *)p_this;
857 char *psz_mode = newval.psz_string;
859 (void)psz_cmd; (void)oldval; (void)p_data;
861 if( !psz_mode || !*psz_mode )
863 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
868 var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING );
869 var_SetString( p_aout, "equalizer-preset", psz_mode );
870 i_ret = ChangeFiltersString( p_aout, "audio-filter", "equalizer",
876 AoutInputsMarkToRestart( p_aout );
880 static int ReplayGainCallback( vlc_object_t *p_this, char const *psz_cmd,
881 vlc_value_t oldval, vlc_value_t newval, void *p_data )
883 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
884 VLC_UNUSED(newval); VLC_UNUSED(p_data);
885 aout_instance_t *p_aout = (aout_instance_t *)p_this;
887 aout_lock_mixer( p_aout );
888 if( p_aout->p_input != NULL )
889 ReplayGainSelect( p_aout, p_aout->p_input );
890 aout_unlock_mixer( p_aout );
895 static void ReplayGainSelect( aout_instance_t *p_aout, aout_input_t *p_input )
897 char *psz_replay_gain = var_GetNonEmptyString( p_aout,
898 "audio-replay-gain-mode" );
903 p_input->mixer.multiplier = 1.0;
905 if( !psz_replay_gain )
908 /* Find select mode */
909 if( !strcmp( psz_replay_gain, "track" ) )
910 i_mode = AUDIO_REPLAY_GAIN_TRACK;
911 else if( !strcmp( psz_replay_gain, "album" ) )
912 i_mode = AUDIO_REPLAY_GAIN_ALBUM;
914 i_mode = AUDIO_REPLAY_GAIN_MAX;
916 /* If the select mode is not available, prefer the other one */
918 if( i_use != AUDIO_REPLAY_GAIN_MAX && !p_input->replay_gain.pb_gain[i_use] )
920 for( i_use = 0; i_use < AUDIO_REPLAY_GAIN_MAX; i_use++ )
922 if( p_input->replay_gain.pb_gain[i_use] )
928 if( i_use != AUDIO_REPLAY_GAIN_MAX )
929 f_gain = p_input->replay_gain.pf_gain[i_use] + var_GetFloat( p_aout, "audio-replay-gain-preamp" );
930 else if( i_mode != AUDIO_REPLAY_GAIN_MAX )
931 f_gain = var_GetFloat( p_aout, "audio-replay-gain-default" );
934 p_input->mixer.multiplier = pow( 10.0, f_gain / 20.0 );
937 if( p_input->replay_gain.pb_peak[i_use] &&
938 var_GetBool( p_aout, "audio-replay-gain-peak-protection" ) &&
939 p_input->replay_gain.pf_peak[i_use] * p_input->mixer.multiplier > 1.0 )
941 p_input->mixer.multiplier = 1.0f / p_input->replay_gain.pf_peak[i_use];
944 free( psz_replay_gain );