I want to play an audio loop by turning on a switch but i do not want the loop to end until the switch is turned off. When the loop ends i want it to simply start back at the beginning as to be continuos.
Try something like this. Note the -1 tells the music to repeat indefinitely:
Import this file at the top of your file:
#import <AVFoundation/AVFoundation.h>
Then to use it:
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:resourcePath ofType:#"caf"];
NSError *activationError = nil;
NSError *audioPlayerInitError = nil;
[[AVAudioSession sharedInstance] setActive: YES error:&activationError];
NSURL *newURL = [NSURL fileURLWithPath:soundFilePath];
AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:newURL error:&audioPlayerInitError];
[newPlayer prepareToPlay];
[newPlayer setVolume:.8];
[newPlayer setNumberOfLoops:-1]; // -1 means play indefintely
[newPlayer setDelegate: self];
[newPlayer play];
[newPlayer release];
And then to stop it you would do:
if ([newPlayer isPlaying]) {
[newPlayer stop];
}
Related
I am getting an error when using AVAudioPlayer in Iphone. i got this error sometime not every time. error is :
An AVPlayerItem cannot be associated with more than one instance of AVPlayer
Code which i am using for playing a file :
NSString *soundPath =[[NSBundle mainBundle] pathForResource:#"abc" ofType:#"m4a"];
NSURL *soundURL = [NSURL fileURLWithPath:soundPath];
NSError *error;
AVAudioPlayer *theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:&error];
[theAudio setDelegate:self];
[theAudio setNumberOfLoops:0];
if(theAudio == nil)
{
NSLog([error description]);
}
else
{
[theAudio play];
}
can anyone tell me how can i solve this issue.
I am able to record video and output the movie to a file correctly. However, I have a problem with video recording (no video ouput) when trying to use AVAudioPlayer to play some audio. Does it mean that I cannot use AVCaptureSession and AVAudioPlayer at the same time? Here is my code to create the capture session and to play the audio. The video capture is started first, then during the capturing, I want to play some audio. Thanks so much for any help.
Code to create the capture session to record video (with audio) - output to a .mov file:
- (void)addVideoInput
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
//... also some code for setting up videoDevice/frontCamera
NSError *error;
AVCaptureDeviceInput *videoIn = [AVCaptureDeviceInput
deviceInputWithDevice:frontCamera error:&error];
AVCaptureDeviceInput *audioIn = [AVCaptureDeviceInput
deviceInputWithDevice:audioDevice error:&error];
if (!error) {
if ([captureSession canAddInput:audioIn])
[captureSession addInput:audioIn];
else
NSLog(#"Couldn't add audio input.");
if ([captureSession canAddInput:videoIn])
[captureSession addInput:videoIn];
else
NSLog(#"Couldn't add video input.");
}
- (void)addVideoOutput
{
AVCaptureMovieFileOutput *m_captureFileOutput = [[AVCaptureMovieFileOutput alloc] init];
[captureSession addOutput:m_captureFileOutput];
[captureSession startRunning];
NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSMutableString *filePath = [NSMutableString stringWithString:#"Movie.mov"];
NSString* fileRoot = [docDir stringByAppendingPathComponent:filePath];
NSURL *fileURL = [NSURL fileURLWithPath:fileRoot];
AVCaptureConnection *videoConnection = NULL;
for ( AVCaptureConnection *connection in [m_captureFileOutput connections] )
{
for ( AVCaptureInputPort *port in [connection inputPorts] )
{
if ( [[port mediaType] isEqual:AVMediaTypeVideo] )
{
videoConnection = connection;
}
}
}
[videoConnection setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
[m_captureFileOutput startRecordingToOutputFileURL:fileURL recordingDelegate:self];
[m_captureFileOutput release];
}
Code to play the audio, this function is call during the video capture session. If I don't call this function, the video is recorded and I am able to save to the .mov file. However, if I call this function, there's no output .mov file.
- (void)playAudio
{
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:#"AudioFile" ofType:#"mp3"];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:soundFilePath];
AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];
[fileURL release];
self.audioPlayer = newPlayer;
[newPlayer release];
[audioPlayer setDelegate:self];
[audioPlayer prepareToPlay];
[audioPlayer play];
}
I fixed the problem by setting up the audio session. I called the following function before creating the audio player object to play the audio. That way, I was able to record video (with audio) and play audio at the same time.
- (void)setupAudioSession {
static BOOL audioSessionSetup = NO;
if (audioSessionSetup) {
return;
}
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];
UInt32 doSetProperty = 1;
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(doSetProperty), &doSetProperty);
[[AVAudioSession sharedInstance] setActive: YES error: nil];
audioSessionSetup = YES;
}
- (void)playAudio
{
[self setupAudioSession];
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:#"AudioFile" ofType:#"mp3"];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:soundFilePath];
AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];
[fileURL release];
self.audioPlayer = newPlayer;
[newPlayer release];
[audioPlayer setDelegate:self];
[audioPlayer prepareToPlay];
[audioPlayer play];
}
I am Using Following code to play sound
NSString *laughSoundPath = [[NSBundle mainBundle]pathForResource:#"laugh" ofType:#"wav"];
NSURL *laughURL = [[NSURL alloc]initFileURLWithPath:laughSoundPath];
laughTone = [[AVAudioPlayer alloc]initWithContentsOfURL:laughURL error:nil];
[laughTone prepareToPlay];
[laughTone setDelegate:self];
[laughURL release];
-(IBAction)play
{
[laughTone play];
}
i am Using following line to stop sound
-(IBAction)stop
{
[laughTone stop];
}
Problem is.. When i play sound again, its starting from the point where it was stopped.. i mean to say its working as pause.. help me out
-(IBAction)stop
{
[laughTone stop];
[laughTone playAtTime:0];
}
Try resetting the time and then playing, again put the code in your play method:
laughTone.currentTime = 0;
[laughTone play];
Try this:
NSString *Str = [[NSBundle mainBundle] pathForResource:#"Ahhh" ofType:#"wav"];
AVAudioPlayer *audioSound =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:ahhhPath] error:NULL];
-(IBAction)btnStopsound(id)sender
{
[audioSound stop];
audioSound.currentTime=0;
[audioSound play]; //restart the player
}
Here is my code on button click
- (void)playButton:(id)sender
{
NSLog(#"Play Button Clicked!!!...");
audioPlayer = [self setUpAudioPlayer:[songs objectAtIndex:i]];
}
-(AVAudioPlayer *)setUpAudioPlayer:(NSString *)filename
{
NSLog(#"File name : %#",filename);
NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:#"caf"];
NSLog(#"File path = %#",path);
AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:nil];
//audioPlayer.volume = 0.5;
[audioPlayer prepareToPlay];
[audioPlayer play];
NSLog(#"Song is playing....");
return [audioPlayer autorelease];
}
here songs is NSMutableArray which contains file name... All things go correct with NSLog... But no sound is coming and no error comes.. What is wrong with the code..???
Your audio player is probably getting released as soon as it starts playing. Try to retain it after setUpAudioPlayer is called.
Most probably you need to initialize an audio session, some like this
- (void)setupAudioSession
{
AVAudioSession *session = [AVAudioSession sharedInstance];
NSError *error = nil;
[session setCategory: AVAudioSessionCategoryPlayback error: &error];
if (error != nil)
NSLog(#"Failed to set category on AVAudioSession");
// AudioSession and AVAudioSession calls can be used interchangeably
OSStatus result = AudioSessionAddPropertyListener(kAudioSessionProperty_AudioRouteChange, RouteChangeListener, self);
if (result) NSLog(#"Could not add property listener! %d\n", result);
BOOL active = [session setActive: YES error: nil];
if (!active)
NSLog(#"Failed to set category on AVAudioSession");
}
I've created a list of music file names in an array which is used to populate an uitableview. I want to make the audio player take this array or table as the playlist and play them continuously one by one, with all the features like play, pause, next, previous, forward, backward and stop. What is the best way to implement this. All the music files in the resource folder itself so that i can initiate each one as
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:#"filename" ofType:#"mp3"];
NSURL *newURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];
self.soundFileURL = newURL;
[newURL release];
[[AVAudioSession sharedInstance] setDelegate: self];
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryAmbient error: nil];
AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL: soundFileURL error: nil];
self.appSoundPlayer = newPlayer;
[newPlayer release];
[appSoundPlayer prepareToPlay];
[appSoundPlayer setVolume: 1.0];
[appSoundPlayer setDelegate: self];
Could this be as simple as implementing the AVAudioPlayerDelegate?
appSoundPlayer.delegate=self;
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
if (successfully)
{
// play next track
}
}
Obviously you'd need to keep track of which track is currently playing in order to work out the next track to play, but that shouldn't be a problem. You'd also have to implement your own controls and logic for track skip etc, but again this is easily done.