I need to play n tracks one after another with ability to switch to next/previous song and pause. Songs are located in Documents folder.
I looked in AVQueuePlayer, but it seems that this approach is not working with local files, playing by url works fine. Now i can play one song with AVAudioPlayer like this:
NSURL *url = [NSURL fileURLWithPath:[node path]];
self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
[self.player play];
But it seems that playing bunch of tracks one after another this way is not the best practice.
May be there are frameworks that implement this in more convenient way?
Any suggestions?
StreamingKit is probably what your looking for.
Related
I'm looking for a way to play an audio file from just any point in the file.
Currently, whenever I play the file, it just starts from the beginning.
Since it is a loop, I could choose to let it loop, and open/close the volume at will, but I think it is kind of a lame solution, not in the least because of battery concerns.
I really did some research on this, but it is either a freak requirement, or I don't know how to phrase my queries.
Thanks in advance for any tip.
That should be a nice easy problem to solve. You don't post any code, so we can't see what you're trying at the moment. What I'd do is this:
NSString *soundPath = [[NSBundle mainBundle] pathForResource:#"SoundFile" ofType:#"wav"];
AVAudioPlayer * soundData =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:soundPath] error:NULL];
[soundData stop];
soundData.currentTime = 22; //This will start playback 22 seconds into the file
[soundData play];
It goes without saying that you need to check the duration of your sound file so that you don't select a time beyond its end!
currentTime is a float (so you can specify millisecond values). You can read more here: https://developer.apple.com/library/ios/documentation/AVFoundation/Reference/AVAudioPlayerClassReference/#//apple_ref/occ/instp/AVAudioPlayer/currentTime
Has anyone out there ever used this https://github.com/tumtumtum/StreamingKit/ package to play remote mp3 files? How can one load an array of music urls and play them one after the other?
Just as document says:
STKAudioPlayer* audioPlayer = [[STKAudioPlayer alloc] init];
[audioPlayer queue:#"http://www.abstractpath.com/files/audiosamples/sample.mp3"];
[audioPlayer queue:#"http://www.abstractpath.com/files/audiosamples/airplane.aac"];
You just need to add url to queue.
I have found many related questions on SO, but or because I am very new, or because it doesn't exactly fit my problem, I can't find a way to succeed.
So, all I would like to do is playing an audio file stored on an exernal server directly on the iOS device (iPhone in my case)
I have tried differents solution on the net, and this is what I get until now.
NSString* resourcePath = #"http://www.chiptape.com/chiptape/sounds/medium/laugh.mp3"; //your url
NSURL *url = [[NSURL alloc]initWithString:resourcePath];
NSError *error;
audioPlayer = [[AVAudioPlayer alloc] initWithURL:url error:&error];
audioPlayer.delegate = self;
[url release];
[audioPlayer prepareToPlay];
[audioPlayer play];
The compiler show me this error:
No visible #interface for 'AVAudioPlayer' declares the selector
'initWithURL:error:'
I am not sure at all about my code, and would like your guys to know I have started iOS coding yesterday, so it's not impossible I'm missing something so obvious that tutorials/posts don't mention it.
Also, I have imported the library AVFoundation and imported it on my .h file.
I have also declared this on my .h file
AVAudioPlayer *audioPlayer;
I hope there is an easy way to stream audio file on iOS as provide android/java
Thank you and if you need more details comment and I'll update my post.
Try this:
NSString* resourcePath = #"http://www.chiptape.com/chiptape/sounds/medium/laugh.mp3"; //your url
NSURL *audioURL = [NSURL URLWithString:resourcePath];
AVAudioPlayer *audioPlayer = [[[AVAudioPlayer alloc] initWithContentsOfURL: audioURL error:&error]autorelease];
[audioPlayer play];
I'm working with it recently.
AVAudioPlayer can't work with audio stream. In fact, there isn't an easy way to do that.
You need to learn some Core Audio things, get the raw data of media, play them in audioQueue (audioToolBox framework). Real-time audio processing is not a simple work, it's full of c-level api and so many dirty work, don't rush, have fun :)
Check out the book Learning Core Audio and this open-source audio streamer.
Let me know if you need more help.
Good Day,
I am working on one Radio APP that gets shoutcast streaming .pls file and plays it with help of AVFoundation framework.
This job is easily done with AVPlayer, but the problem with it is that I can not code or find any good solution to get it working with volume slider, the AVPlayer class does not have volume property.
So now I am trying to get it working with AVAudioPlayer which has volume property, and here is my code:
NSString *resourcePatch = #"http://vibesradio.org:8002/listen.pls";
NSData *_objectData = [NSData dataWithContentsOfURL:[NSURL URLWithString:resourcePatch]];
NSError *error;
vPlayer = [[AVAudioPlayer alloc] initWithData:_objectData error:&error];
vPlayer.numberOfLoops = 0;
vPlayer.volume = 1.0f;
if (vPlayer == nil)
NSLog(#"%#", [error description]);
else
[vPlayer play];
This code is working with uploaded .mp3 files on my server but it is not working with .pls files generated by shoutcast,
Is there any way to fix AVAudioPlayer to work with .pls files, or implement volume slider to AVPlayer ?
Using AVAudioPlayer for stream from network is not a good idea. See what Apple's documentation say on AVAudioPlayer:
An instance of the AVAudioPlayer class, called an audio player,
provides playback of audio data from a file or memory.
Apple recommends that you use this class for audio playback unless you
are playing audio captured from a network stream or require very low
I/O latency.
For change AVPlayer's volume check this question:Adjusting the volume of a playing AVPlayer
I am working on an interactive children's book for the iPad that has a "read to me" option.
For each page (that has an index), theres an audio clip that produces the "read to me" feature. The feature works well, except for the fact that when I turn the page, the previous pages audio still plays, even when the new audio starts, here's my example:
- (void) didTurnToPageAtIndex:(NSUInteger)index
{
if ([delegate respondsToSelector:#selector(leavesView:didTurnToPageAtIndex:)])
[delegate leavesView:self didTurnToPageAtIndex:index];
if([[NSUserDefaults standardUserDefaults] boolForKey:#"kReadToMe"] == YES)
{
NSString* filename = [voices objectAtIndex:index];
NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:#"m4v"];
NSLog(#"File: %#, Index: %i",path,index);
//Create new audio for next page
AVAudioPlayer * newAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:nil];
rtmAudio = newAudio; // automatically retain audio and dealloc old file if new file is loaded
//[newAudio release];
[rtmAudio play];
}
}
Say for instance, I turn to page 3 before the audio for page 2 stops playing, both clips play over eachother, which will annoy the sh*t out of kids, I know it does me.
I've tried placing [rtmAudio stop] before I allocate the new file, but that doesnt seem to work. I need a way to kill the prevous audio clip before starting the new clip.
I would suggest that you have one instance of the audio player in your whole application. Then you can check if it playing, if so stop it and then move on.
you are creating a new player in this method before stopping the old.... I believe
As AlexChaffee mentioned the Apple docs, "Play multiple sounds simultaneously, one sound per audio player, with precise synchronization". It seems preferable to use multipe instances across the app with NSNotificationCenter's notifications.