/*
 * Copyright (c) 2011, The Iconfactory. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of The Iconfactory nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE ICONFACTORY BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <Foundation/Foundation.h>

extern NSString *const AVAudioSessionCategoryAmbient;
extern NSString *const AVAudioSessionCategorySoloAmbient;
extern NSString *const AVAudioSessionCategoryPlayback;
extern NSString *const AVAudioSessionCategoryRecord;
extern NSString *const AVAudioSessionCategoryPlayAndRecord;
extern NSString *const AVAudioSessionCategoryAudioProcessing;

@interface AVAudioSession : NSObject {
}

+ (id)sharedInstance;

- (BOOL)setActive:(BOOL)beActive error:(NSError**)outError;
- (BOOL)setCategory:(NSString*)theCategory error:(NSError**)outError;

@end

//jas
/* A protocol for delegates of AVAudioSession */
@protocol AVAudioSessionDelegate <NSObject>
@optional 

- (void)beginInterruption; /* something has caused your audio session to be interrupted */

/* the interruption is over */
- (void)endInterruptionWithFlags:(NSUInteger)flags; /* Currently the only flag is AVAudioSessionInterruptionFlags_ShouldResume. */

- (void)endInterruption; /* endInterruptionWithFlags: will be called instead if implemented. */

/* notification for input become available or unavailable */
- (void)inputIsAvailableChanged:(BOOL)isInputAvailable;

@end
