equalizer.m
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上传日期:2009-03-27
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文件大小:13k
- /*****************************************************************************
- * equalizer.m: MacOS X interface module
- *****************************************************************************
- * Copyright (C) 2004 VideoLAN
- * $Id: equalizer.m 8644 2004-09-05 16:53:04Z fkuehne $
- *
- * Authors: Jerome Decoodt <djc@videolan.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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <vlc/vlc.h>
- #include <vlc/aout.h>
- #include <aout_internal.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, vlc_bool_t 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 == NULL )
- p_object = vlc_object_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- psz_string = var_GetString( 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
- {
- 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 );
- 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 = VLC_TRUE;
- }
- }
- free( psz_string );
- vlc_object_release( p_object );
- }
- static vlc_bool_t 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_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return VLC_FALSE;
- psz_string = var_GetString( p_object, "audio-filter" );
- vlc_object_release( p_object );
- if( !psz_string ) return VLC_FALSE;
- psz_parser = strstr( psz_string, psz_name );
- free( psz_string );
- if ( psz_parser )
- return VLC_TRUE;
- else
- return VLC_FALSE;
- }
- - (void)initStrings
- {
- int i;
- [o_btn_equalizer setToolTip: _NS("Equalizer")];
- [o_ckb_2pass setTitle: _NS("2 Pass")];
- [o_ckb_2pass setToolTip: _NS("If you enable this settting, the "
- "equalizer filter will be applied twice. The effect will be sharper.")];
- [o_ckb_enable setTitle: _NS("Enable")];
- [o_ckb_enable setToolTip: _NS("Enable the equalizer. You can either "
- "manually change the bands or use 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[i]) atIndex: i];
- }
- [o_window setTitle: _NS("Equalizer")];
- [o_slider_band1 setFloatValue: 0];
- [o_slider_band2 setFloatValue: 0];
- [o_slider_band3 setFloatValue: 0];
- [o_slider_band4 setFloatValue: 0];
- [o_slider_band5 setFloatValue: 0];
- [o_slider_band6 setFloatValue: 0];
- [o_slider_band7 setFloatValue: 0];
- [o_slider_band8 setFloatValue: 0];
- [o_slider_band9 setFloatValue: 0];
- [o_slider_band10 setFloatValue: 0];
- [o_ckb_enable setState: NSOffState];
- [o_ckb_2pass setState: NSOffState];
- }
- - (void)equalizerUpdated
- {
- intf_thread_t *p_intf = VLCIntf;
- float f_preamp, f_band[10];
- char *psz_bands, *p_next;
- vlc_bool_t b_2p;
- int i;
- vlc_bool_t b_enabled = GetFiltersStatus( p_intf, "equalizer" );
- vlc_object_t *p_object = vlc_object_find( p_intf,
- VLC_OBJECT_AOUT, FIND_ANYWHERE );
- if( p_object == NULL )
- p_object = vlc_object_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- f_preamp = var_GetFloat( p_object, "equalizer-preamp" );
- psz_bands = var_GetString( p_object, "equalizer-bands" );
- if( !psz_bands )
- psz_bands = strdup( "0 0 0 0 0 0 0 0 0 0" );
- b_2p = var_GetBool( p_object, "equalizer-2pass" );
- vlc_object_release( p_object );
- /* Set the preamp slider */
- [o_slider_preamp setFloatValue: f_preamp];
- /* Set the bands slider */
- for( i = 0; i < 10; i++ )
- {
- /* Read dB -20/20 */
- #ifdef HAVE_STRTOF
- f_band[i] = strtof( psz_bands, &p_next );
- #else
- f_band[i] = (float)strtod( psz_bands, &p_next );
- #endif
- 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 );
- [o_slider_band1 setFloatValue: f_band[0]];
- [o_slider_band2 setFloatValue: f_band[1]];
- [o_slider_band3 setFloatValue: f_band[2]];
- [o_slider_band4 setFloatValue: f_band[3]];
- [o_slider_band5 setFloatValue: f_band[4]];
- [o_slider_band6 setFloatValue: f_band[5]];
- [o_slider_band7 setFloatValue: f_band[6]];
- [o_slider_band8 setFloatValue: f_band[7]];
- [o_slider_band9 setFloatValue: f_band[8]];
- [o_slider_band10 setFloatValue: f_band[9]];
- /* Set the the checkboxes */
- if( b_enabled == VLC_TRUE )
- [o_ckb_enable setState:NSOnState];
- else
- [o_ckb_enable setState:NSOffState];
- [o_ckb_2pass setState:( ( b_2p == VLC_TRUE ) ? NSOnState : NSOffState )];
- }
- - (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 );
- char psz_values[102];
- memset( psz_values, 0, 102 );
- if( p_object == NULL )
- p_object = vlc_object_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- /* Write the new bands values */
- /* TODO: write a generic code instead of ten times the same thing */
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band1 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band2 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band3 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band4 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band5 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band6 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band7 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band8 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band9 floatValue] );
- sprintf( psz_values, "%s %.1f", psz_values, [o_slider_band10 floatValue] );
- var_SetString( p_object, "equalizer-bands", psz_values );
- 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 );
- char psz_values[102];
- memset( psz_values, 0, 102 );
- if( p_object == NULL )
- p_object = vlc_object_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- var_SetString( p_object , "equalizer-preset" , preset_list[[sender indexOfSelectedItem]] );
- for( i = 0; i < 10; i++ )
- sprintf( psz_values, "%s %.1f", psz_values, eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[i] );
- 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];
- [o_slider_band1 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[0]];
- [o_slider_band2 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[1]];
- [o_slider_band3 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[2]];
- [o_slider_band4 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[3]];
- [o_slider_band5 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[4]];
- [o_slider_band6 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[5]];
- [o_slider_band7 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[6]];
- [o_slider_band8 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[7]];
- [o_slider_band9 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[8]];
- [o_slider_band10 setFloatValue: eqz_preset_10b[[sender indexOfSelectedItem]]->f_amp[9]];
- vlc_object_release( p_object );
- }
- - (IBAction)enable:(id)sender
- {
- ChangeFiltersString( VLCIntf, "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_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- var_SetFloat( p_object, "equalizer-preamp", f_preamp );
- 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;
- vlc_bool_t b_2p = [sender state] ? VLC_TRUE : VLC_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_find( p_intf,
- VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
- if( p_object == NULL )
- return;
- 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 = VLC_TRUE;
- }
- }
- vlc_object_release( p_object );
- }
- - (void)windowWillClose:(NSNotification *)aNotification
- {
- [o_btn_equalizer setState: NSOffState];
- }
- - (void)awakeFromNib
- {
- [o_window setExcludedFromWindowsMenu: TRUE];
-
- [self initStrings];
- [self equalizerUpdated];
- }
- @end