equalizer.m
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:15k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * equalizer.m: MacOS X interface module
- *****************************************************************************
- * Copyright (C) 2004-2008 the VideoLAN team
- * $Id: 0c726b1a868e54b94edc6ca7a5768227a2e62ba9 $
- *
- * Authors: Jérôme Decoodt <djc@videolan.org>
- * Felix Paul Kühne <fkuehne -at- videolan -dot- org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_aout.h>
- #include "intf.h"
- #include <math.h>
- #include "equalizer.h"
- #include "../../audio_filter/equalizer_presets.h"
- /*****************************************************************************
- * VLCEqualizer implementation
- *****************************************************************************/
- @implementation VLCEqualizer
- static void ChangeFiltersString( intf_thread_t *p_intf,
- char *psz_name, bool b_add )
- {
- char *psz_parser, *psz_string;
- int i;
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- aout_instance_t *p_aout = (aout_instance_t *)p_object;
- if( !p_object )
- {
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- }
- psz_string = var_GetNonEmptyString( p_object, "audio-filter" );
- if( !psz_string ) psz_string = strdup( "" );
- psz_parser = strstr( psz_string, psz_name );
- if( b_add )
- {
- if( !psz_parser )
- {
- psz_parser = psz_string;
- asprintf( &psz_string, ( *psz_string ) ? "%s,%s" : "%s%s",
- psz_string, psz_name );
- free( psz_parser );
- }
- else
- {
- vlc_object_release( p_object );
- return;
- }
- }
- else
- {
- if( psz_parser )
- {
- memmove( psz_parser, psz_parser + strlen( psz_name ) +
- ( *( psz_parser + strlen( psz_name ) ) == ',' ? 1 : 0 ),
- strlen( psz_parser + strlen( psz_name ) ) + 1 );
- if( *( psz_string+strlen( psz_string ) - 1 ) == ',' )
- {
- *( psz_string+strlen( psz_string ) - 1 ) = ' ';
- }
- }
- else
- {
- free( psz_string );
- vlc_object_release( p_object );
- return;
- }
- }
- var_SetString( p_object, "audio-filter", psz_string );
- if( p_aout )
- {
- for( i = 0; i < p_aout->i_nb_inputs; i++ )
- {
- p_aout->pp_inputs[i]->b_restart = true;
- }
- }
- if( (BOOL)config_GetInt( p_object, "macosx-eq-keep" ) == YES )
- {
- /* save changed to config */
- config_PutPsz( p_object, "audio-filter", psz_string );
- }
- free( psz_string );
- vlc_object_release( p_object );
- }
- static bool GetFiltersStatus( intf_thread_t *p_intf,
- char *psz_name )
- {
- char *psz_parser, *psz_string;
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- psz_string = config_GetPsz( p_intf, "audio-filter" );
- if(! psz_string )
- psz_string = var_GetNonEmptyString( p_object, "audio-filter" );
- vlc_object_release( p_object );
- if( !psz_string ) return false;
- psz_parser = strstr( psz_string, psz_name );
- free( psz_string );
- if ( psz_parser )
- return true;
- else
- return false;
- }
- - (void)initStrings
- {
- int i;
- [o_btn_equalizer setToolTip: _NS("Equalizer")];
- [o_ckb_2pass setTitle: _NS("2 Pass")];
- [o_ckb_2pass setToolTip: _NS("Apply the "
- "equalizer filter twice. The effect will be sharper.")];
- [o_ckb_enable setTitle: _NS("Enable")];
- [o_ckb_enable setToolTip: _NS("Enable the equalizer. Bands can be set "
- "manually or using a preset.")];
- [o_fld_preamp setStringValue: _NS("Preamp")];
- [o_popup_presets removeAllItems];
- for( i = 0; i < 18 ; i++ )
- {
- [o_popup_presets insertItemWithTitle: _NS(preset_list_text[i]) atIndex: i];
- }
- [o_window setTitle: _NS("Equalizer")];
- [self initBandSliders];
- }
- - (void)equalizerUpdated
- {
- intf_thread_t *p_intf = VLCIntf;
- float f_preamp, f_band[10];
- char *psz_bands, *psz_bands_init, *p_next;
- bool b_2p;
- int i;
- bool b_enabled = GetFiltersStatus( p_intf, (char *)"equalizer" );
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- var_Create( p_object, "equalizer-preamp", VLC_VAR_FLOAT |
- VLC_VAR_DOINHERIT );
- var_Create( p_object, "equalizer-bands", VLC_VAR_STRING |
- VLC_VAR_DOINHERIT );
- psz_bands = var_GetNonEmptyString( p_object, "equalizer-bands" );
- if( psz_bands == NULL )
- psz_bands = strdup( "0 0 0 0 0 0 0 0 0 0" );
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- {
- b_2p = (BOOL)config_GetInt( p_object, "equalizer-2pass" );
- f_preamp = config_GetFloat( p_object, "equalizer-preamp" );
- }
- else
- {
- b_2p = var_GetBool( p_object, "equalizer-2pass" );
- f_preamp = var_GetFloat( p_object, "equalizer-preamp" );
- }
- vlc_object_release( p_object );
- /* Set the preamp slider */
- [o_slider_preamp setFloatValue: f_preamp];
- /* Set the bands slider */
- psz_bands_init = psz_bands;
- for( i = 0; i < 10; i++ )
- {
- /* Read dB -20/20 */
- f_band[i] = strtof( psz_bands, &p_next );
- if( !p_next || p_next == psz_bands ) break; /* strtof() failed */
- if( !*psz_bands ) break; /* end of line */
- psz_bands = p_next+1;
- }
- free( psz_bands_init );
- [self setBandSlidersValues:f_band];
- /* Set the the checkboxes */
- [o_ckb_enable setState: b_enabled];
- [o_ckb_2pass setState: b_2p];
- }
- - (IBAction)bandSliderUpdated:(id)sender
- {
- intf_thread_t *p_intf = VLCIntf;
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- const char *psz_values;
- NSString *preset = [NSString stringWithFormat:@"%.1f", [o_slider_band1 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band2 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band3 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band4 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band5 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band6 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band7 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band8 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f ", [o_slider_band9 floatValue] ];
- preset = [preset stringByAppendingFormat:@"%.1f", [o_slider_band10 floatValue] ];
- psz_values = [preset UTF8String];
- var_SetString( p_object, "equalizer-bands", psz_values );
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- {
- /* save changed to config */
- config_PutPsz( p_intf, "equalizer-bands", psz_values );
- /* save to vlcrc */
- config_SaveConfigFile( p_intf, "equalizer" );
- }
- vlc_object_release( p_object );
- }
- - (IBAction)changePreset:(id)sender
- {
- intf_thread_t *p_intf = VLCIntf;
- int i;
- vlc_object_t *p_object= vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- var_SetString( p_object , "equalizer-preset" , preset_list[[sender indexOfSelectedItem]] );
- NSString *preset = @"";
- const char *psz_values;
- for( i = 0; i < 10; i++ )
- {
- preset = [preset stringByAppendingFormat:@"%.1f ", eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[i] ];
- }
- psz_values = [preset UTF8String];
- var_SetString( p_object, "equalizer-bands", psz_values );
- var_SetFloat( p_object, "equalizer-preamp", eqz_preset_10b[[sender indexOfSelectedItem]]->f_preamp);
- [o_slider_preamp setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_preamp];
- [self setBandSlidersValues:(float *)eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp];
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- {
- /* save changed to config */
- config_PutPsz( p_intf, "equalizer-bands", psz_values );
- config_PutFloat( p_intf, "equalizer-preamp", eqz_preset_10b[[sender indexOfSelectedItem]]->f_preamp );
- config_PutPsz( p_intf, "equalizer-preset", preset_list[[sender indexOfSelectedItem]] );
- /* save to vlcrc */
- config_SaveConfigFile( p_intf, "equalizer" );
- }
- vlc_object_release( p_object );
- }
- - (IBAction)enable:(id)sender
- {
- ChangeFiltersString( VLCIntf, (char *)"equalizer", [sender state] );
- }
- - (IBAction)preampSliderUpdated:(id)sender
- {
- intf_thread_t *p_intf = VLCIntf;
- float f_preamp = [sender floatValue] ;
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- var_SetFloat( p_object, "equalizer-preamp", f_preamp );
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- {
- /* save changed to config */
- config_PutFloat( p_intf, "equalizer-preamp", f_preamp );
- /* save to vlcrc */
- config_SaveConfigFile( p_intf, "equalizer" );
- }
- vlc_object_release( p_object );
- }
- - (IBAction)toggleWindow:(id)sender
- {
- if( [o_window isVisible] )
- {
- [o_window orderOut:sender];
- [o_btn_equalizer setState:NSOffState];
- }
- else
- {
- [o_window makeKeyAndOrderFront:sender];
- [o_btn_equalizer setState:NSOnState];
- }
- }
- - (IBAction)twopass:(id)sender
- {
- intf_thread_t *p_intf = VLCIntf;
- bool b_2p = [sender state] ? true : false;
- vlc_object_t *p_object= vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- aout_instance_t *p_aout = (aout_instance_t *)p_object;
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( p_intf );
- var_SetBool( p_object, "equalizer-2pass", b_2p );
- if( ( [o_ckb_enable state] ) && ( p_aout != NULL ) )
- {
- int i;
- for( i = 0; i < p_aout->i_nb_inputs; i++ )
- {
- p_aout->pp_inputs[i]->b_restart = true;
- }
- }
- if( (BOOL)config_GetInt( p_intf, "macosx-eq-keep" ) == YES )
- {
- /* save changed to config */
- config_PutInt( p_intf, "equalizer-2pass", (int)b_2p );
- /* save to vlcrc */
- config_SaveConfigFile( p_intf, "equalizer" );
- }
- vlc_object_release( p_object );
- }
- - (void)windowWillClose:(NSNotification *)aNotification
- {
- [o_btn_equalizer setState: NSOffState];
- }
- - (void)awakeFromNib
- {
- int i;
- vlc_object_t *p_object= vlc_object_find( VLCIntf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = (vlc_object_t *)pl_Hold( VLCIntf );
- [o_window setExcludedFromWindowsMenu: TRUE];
- [self initStrings];
- if( p_object )
- {
- char *psz_preset;
- var_Create( p_object, "equalizer-preset", VLC_VAR_STRING |
- VLC_VAR_DOINHERIT );
- psz_preset = var_GetNonEmptyString( p_object, "equalizer-preset" );
- for( i = 0 ; (psz_preset != NULL) && (i < 18) ; i++ )
- {
- if( strcmp( preset_list[i], psz_preset ) )
- continue;
- [o_popup_presets selectItemAtIndex: i];
- [o_slider_preamp setFloatValue: eqz_preset_10b[i]->f_preamp];
- [self setBandSlidersValues: (float *)eqz_preset_10b[i]->f_amp];
- if( strcmp( psz_preset, "flat" ) )
- {
- char psz_bands[100];
- snprintf( psz_bands, sizeof( psz_bands ),
- "%.1f %.1f %.1f %.1f %.1f %.1f %.1f "
- "%.1f %.1f %.1f",
- eqz_preset_10b[i]->f_amp[0],
- eqz_preset_10b[i]->f_amp[1],
- eqz_preset_10b[i]->f_amp[2],
- eqz_preset_10b[i]->f_amp[3],
- eqz_preset_10b[i]->f_amp[4],
- eqz_preset_10b[i]->f_amp[5],
- eqz_preset_10b[i]->f_amp[6],
- eqz_preset_10b[i]->f_amp[7],
- eqz_preset_10b[i]->f_amp[8],
- eqz_preset_10b[i]->f_amp[9] );
- var_Create( p_object, "equalizer-preamp", VLC_VAR_FLOAT |
- VLC_VAR_DOINHERIT );
- var_Create( p_object, "equalizer-bands", VLC_VAR_STRING |
- VLC_VAR_DOINHERIT );
- var_SetFloat( p_object, "equalizer-preamp",
- eqz_preset_10b[i]->f_preamp );
- var_SetString( p_object, "equalizer-bands", psz_bands );
- }
- }
- free( psz_preset );
- vlc_object_release( p_object );
- }
- [self equalizerUpdated];
- }
- - (id)sliderByIndex:(int)index
- {
- switch(index)
- {
- case 0 : return o_slider_band1;
- case 1 : return o_slider_band2;
- case 2 : return o_slider_band3;
- case 3 : return o_slider_band4;
- case 4 : return o_slider_band5;
- case 5 : return o_slider_band6;
- case 6 : return o_slider_band7;
- case 7 : return o_slider_band8;
- case 8 : return o_slider_band9;
- case 9 : return o_slider_band10;
- default : return nil;
- }
- }
- - (void)setBandSlidersValues:(float *)values
- {
- int i = 0;
- for (i = 0 ; i<= 9 ; i++)
- {
- [self setValue:values[i] forSlider:i];
- }
- }
- - (void)initBandSliders
- {
- int i = 0;
- for (i = 0 ; i< 9 ; i++)
- {
- [self setValue:0.0 forSlider:i];
- }
- }
- - (void)setValue:(float)value forSlider:(int)index
- {
- id slider = [self sliderByIndex:index];
- if (slider != nil)
- {
- [slider setFloatValue:value];
- }
- }
- @end