问题描述
我想打从互联网加载的声音文件，所以我试图从iPhone SDK SpeakHere样品开始。我录了音，然后保存并上传到互联网，我可以下载该文件，并从声音工具没有问题玩。但是，当我试图播放从SpeakHere该URL，我得到错误程序接收到的信号：EXC_BAD_ACCESS
I'd like to play sound file which loaded from internet, so I tried to start from iPhone SDK SpeakHere sample. I recorded the sound, then saved and uploaded to the internet, I could download that file and play without problem from sound tools. But when I tried to play that URL from SpeakHere, I am getting error Program received signal: "EXC_BAD_ACCESS".
跟踪左右后，我发现，在 - [AudioPlayer calculateSizesFor：] ，其设置 bufferByteSize 来一大量806128768，造成缓冲区分配失败。
After trace around, I found that the in -[AudioPlayer calculateSizesFor:], it set bufferByteSize to a huge number 806128768, which caused buffer allocation failed.
这是因为
AudioFileGetProperty(audioFileID, kAudioFilePropertyPacketSizeUpperBound, &propertySize, &maxPacketSize);
的 maxPacketSize 返回为806128768。
The maxPacketSize returned is 806128768.
我想知道如何使 AudioFileGetProperty 工作
我的声音文件，
你可以右键单击并从这里 直接从互联网上播放。
Yes, you need to use Audio File Stream Services to play directly from the internet.
我发现了AudioFileStreamExample的例子是有用的，它应安装在
I found the "AudioFileStreamExample" example useful, which should be installed in
/Developer/Examples/CoreAudio/Services/AudioFileStreamExample/
此外，马特·加拉格尔有一篇文章叫做，包括iPhone例如code。我还没有仔细看，但似乎它可能对您有所帮助。
Also, Matt Gallagher has an article called "Streaming and playing an MP3 stream" that includes iPhone example code. I haven't looked at it carefully, but it seems like it may be helpful to you.
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