Record the Background Playing song in iOS7 - ios

Question

I am Trying to record the background Playing song using AVAudioRecorder. My code is as Below:
//Initialize audio session
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryRecord error:nil];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
//Override record to mix with other app audio, background audio not silenced on record
UInt32 allowMixing = true;
OSStatus propertySetError = 0;
propertySetError = AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(allowMixing), &allowMixing);
NSLog(#"Mixing: %lx", propertySetError); // This should be 0 or there was an issue somewhere
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride);
[[AVAudioSession sharedInstance] setActive:YES error:nil];
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] initWithCapacity:0];
if (recordEncoding == ENC_PCM) {
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
[recordSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
} else {
NSNumber *formatObject;
switch (recordEncoding) {
case ENC_AAC:
formatObject = [NSNumber numberWithInt:kAudioFormatMPEG4AAC];
break;
case ENC_ALAC:
formatObject = [NSNumber numberWithInt:kAudioFormatAppleLossless];
break;
case ENC_IMA4:
formatObject = [NSNumber numberWithInt:kAudioFormatAppleIMA4];
break;
case ENC_ILBC:
formatObject = [NSNumber numberWithInt:kAudioFormatiLBC];
break;
case ENC_ULAW:
formatObject = [NSNumber numberWithInt:kAudioFormatULaw];
break;
default:
formatObject = [NSNumber numberWithInt:kAudioFormatAppleIMA4];
break;
}
[recordSetting setValue:formatObject forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
[recordSetting setValue:[NSNumber numberWithInt:12800] forKey:AVEncoderBitRateKey];
[recordSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[recordSetting setValue:[NSNumber numberWithInt:AVAudioQualityHigh] forKey:AVEncoderAudioQualityKey];
}
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *recDir = [paths objectAtIndex:0];
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:#"%#/recordTest.caf", recDir]];
NSError *error = nil;
audioRecorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSetting error:&error];
if (!audioRecorder) {
NSLog(#"audioRecorder: %# %d %#", [error domain], [error code], [[error userInfo] description]);
return;
}
// audioRecorder.meteringEnabled = YES;
//
BOOL audioHWAvailable = audioSession.inputIsAvailable;
if (! audioHWAvailable) {
UIAlertView *cantRecordAlert =
[[UIAlertView alloc] initWithTitle: #"Warning"
message: #"Audio input hardware not available"
delegate: nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[cantRecordAlert show];
[cantRecordAlert release];
return;
}
if ([audioRecorder prepareToRecord]) {
[audioRecorder record];
NSLog(#"recording");
} else {
// int errorCode = CFSwapInt32HostToBig ([error code]);
// NSLog(#"Error: %# [%4.4s])" , [error localizedDescription], (char*)&errorCode);
NSLog(#"recorder: %# %d %#", [error domain], [error code], [[error userInfo] description]);
}
but here the session Depreciated in ios7 warning occurs at:
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride);
can any one Help me to remove this warning without Changing the Functionality