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POiOS online radio streaming questions
 

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    <p>I have to create app that provides online radio streaming (icecast), preferably .ogg format. So I have next questions:<br/></p> <ol> <li>How can I play <strong>.ogg</strong> format audio stream? Are there any supported classes? Because I can't find any, so I think that it is impossible without many bitwise operations using <code>CFNetwork</code>, <code>CoreAudio</code>, <code>AudioToolbox</code> etc. <strong>(I don't look at cocos2d, because it's ridiculous) Am i wrong?</strong></li> <li>I'm playing mp3 stream for now (no possibility for .ogg for me). I tried to use <code>AVPlayer</code>, <code>MPMovieMediaController</code>, <strong>AudioSreaming lib by MattGallagher and by DigitalDJ</strong>, and none of these solutions can't provides me metadata access.</li> </ol> <p><strong>For AVPlayer:</strong></p> <pre><code> -(void)playButtonPressed:(id)sender { NSURL *grindURL = [NSURL URLWithString:@"http://radio.goha.ru:8000/grind.fm"]; grindFMPlayer = [[AVPlayer alloc] initWithURL:grindURL]; [grindFMPlayer.currentItem addObserver:self forKeyPath:@"status" options:0 context:nil]; AVPlayerItem *item = grindFMPlayer.currentItem; [grindFMPlayer play]; } -(void)stopButtonPressed:(id)sender { AVURLAsset *ass = grindFMPlayer.currentItem.asset; NSArray *arr = [ass commonMetadata]; NSArray *it_meta = [grindFMPlayer.currentItem timedMetadata]; [grindFMPlayer pause]; } </code></pre> <p><strong>arr</strong> and <strong>it_meta count</strong> always <strong>0</strong>, no song\artist\any metadata.<br/> The same for the <code>MPMovieMediaController</code>, metadataUpdate never called</p> <pre><code>streamAudioPlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:@"http://radio.goha.ru:8000/grind.fm"]; streamAudioPlayer.movieSourceType = MPMovieSourceTypeStreaming; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(MetadataUpdate:) name:MPMoviePlayerTimedMetadataUpdatedNotification object:nil]; [streamAudioPlayer play]; </code></pre> <p>and in stop button method:</p> <pre><code>timedMeta = [streamAudioPlayer timedMetadata]; if ([streamAudioPlayer timedMetadata]!=nil &amp;&amp; [[streamAudioPlayer timedMetadata] count] &gt; 0) { NSLog(@"metadata count = %d", [[streamAudioPlayer timedMetadata] count]); for (MPTimedMetadata *metadata in [streamAudioPlayer timedMetadata]) { NSLog(@"description %@", metadata.allMetadata); if ([[metadata.allMetadata valueForKey:@"key"] isEqualToString:@"title"]) { NSString *text = [metadata.allMetadata valueForKey:@"value"]; NSString* filename = text; } } } </code></pre> <p><code>[streamAudioPlayer timedMetadata]</code> always nil.</p> <p>I've tried</p> <ul> <li><a href="https://github.com/mattgallagher/AudioStreamer" rel="nofollow noreferrer">https://github.com/mattgallagher/AudioStreamer</a></li> <li><a href="https://github.com/DigitalDJ/AudioStreamer" rel="nofollow noreferrer">https://github.com/DigitalDJ/AudioStreamer</a></li> </ul> <p>These 2 projects for shoutcast and icecast - <a href="http://www.mikejablonski.org/2009/04/17/reading-shoutcast-metadata-from-a-stream/" rel="nofollow noreferrer">http://www.mikejablonski.org/2009/04/17/reading-shoutcast-metadata-from-a-stream/</a></p> <p>But still have no luck to get current playing track info, which only obtains in <a href="http://code.google.com/p/audiostreamer-meta/" rel="nofollow noreferrer">SHOUTcast app</a> as </p> <p><strong>1st</strong> <code>Metadata = 'StreamTitle='</code>, </p> <p><strong>2nd</strong> <code>metadata = ''</code> and <code>bitrate = '128000'</code><br/> (So I think I have to have deal with bytes from <strong>http</strong> headers response or something like this? but wtf, it's shoutcast metadata, but my radiostream is icecast. Have no idea)<br/> I would be grateful for any help!</p>
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    1. COand yes, i saw cocoaWithLove's "mp3 streaming" posts cycle and HTTP Live Streaming Overview
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    2. COOn metadata... This question has been answered at least weekly. Search. Icecast is built to be compatible with SHOUTcast, and returns metadata in the same way.
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    3. COoh, thanks, i'll try to find it.
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