/*

 </samplecode>

*/

#import <UIKit/UIKit.h>

#import "MeterTable.h"

#import "PowerMeter.h"

#define kPeakFalloffPerSec      .7

#define kLevelFalloffPerSec     .8

#define kMinDBvalue             -80.0

#define kRefreshRate            60.

#define kDefaultSampleRate      44100.

// A LevelMeter subclass which is used specifically for AVAudioPlayer objects

@interface AULevelMeter : UIView {

    NSArray*            _channelNumbers;

    NSArray*            _subLevelMeters;

    MeterTable*         _meterTable;

    PowerMeter*         _powerMeters;

    NSTimer*            _updateTimer;

    CGFloat             _refreshHz;

    double              sampleRate;

    BOOL                _showsPeaks;

    BOOL                _vertical;

    BOOL                _useGL;

    BOOL                _running;

    CFAbsoluteTime      _peakFalloffLastFire;

    UIColor*            color;

}

@property (assign)      BOOL        running;        // Whether the unit is currently running

@property (assign)      CGFloat     refreshHz;      // How many times per second to redraw

@property (assign)      double      sampleRate;     // Sample rate of the audio unit

@property (retain)      NSArray*    channelNumbers; // Array of NSNumber objects: The indices of the channels to display in this meter

@property (retain)      UIColor*    color;

@property (assign)      BOOL        showsPeaks;     // Whether or not we show peak levels

@property (assign)      BOOL        vertical;       // Whether the view is oriented V or H

@property (assign)      BOOL        useGL;          // Whether or not to use OpenGL for drawing

@property (assign)      PowerMeter* powerMeters;

@end