Sample usage of jchernan/TPAACAudioConverter in Objective-C

TPAACAudioConverter_Objective-C.m

- (BOOL)convertAudio
{
    BOOL success = NO;
    NSError *error = nil;
    AVAudioSession *session = [AVAudioSession sharedInstance];
    NSString *sourcePath = @"<source>"
    NSString *destinationPath = @"<destination>"

    // set category of audio session
    success = [session setCategory:AVAudioSessionCategoryPlayback error:&error];
    if (!success) {
        NSLog(@"Failed to set audio category: %@", [error localizedDescription]);
        return success;
    }

    // activate audio session
    success = [session setActive:YES error:&error];
    if (!success) {
        NSLog(@"Failed to activate audio session: %@", [error localizedDescription]);
        return success;
    }

    // create converter
    TPAACAudioConverter *converter = [[TPAACAudioConverter alloc] 
        initWithDelegate:self
                  source:sourcePath
             destination:destinationPath];

    // start conversion
    [converter start];
    return YES;
}

// TPAACAudioConverterDelegate method
- (void)AACAudioConverterDidFinishConversion:(TPAACAudioConverter*)converter
{
    NSError *error = nil;
    BOOL success = [[AVAudioSession sharedInstance] setActive:NO error:&error];
    if (!success) {
        NSLog(@"Failed to deactivate audio session: %@", [deactivationError localizedDescription]);
    }
}

// TPAACAudioConverterDelegate method
- (void)AACAudioConverter:(TPAACAudioConverter*)converter didFailWithError:(NSError*)error
{
    NSLog(@"Audio conversion failed: %@", [error localizedDescription]);
    NSError *error = nil;
    BOOL success = [[AVAudioSession sharedInstance] setActive:NO error:&error];
    if (!success) {
        NSLog(@"Failed to deactivate audio session: %@", [deactivationError localizedDescription]);
    }
}