AVAudioPlayer与外部URL为* .m4p [英] AVAudioPlayer with external URL to *.m4p

问题描述

我的问题如下。我得到这个code，我想一个腐败NSURL自从AVAudioPlayer初始化后为零：

 的NSString * dummyURLString = @http://a825.phobos.apple.com/us/r2000/005/Music/d8/a8/d2/mzi.jelhjoev.aac。 p.m4p;
NSError *错误;
NSURL * URL = [NSURL URLWithString：dummyURLString];
AVAudioPlayer *玩家= [[AVAudioPlayer页头] initWithContentsOfURL：URL错误：＆放大器;错误]
[播放器播放];
 

任何建议是怎么回事错在这里？

＆该放大器;错误表明这一点：

 错误域= NSOSStatusErrorDomain code = -43操作无法完成。（OSStatus错误-43）。
 

解决方案

我尝试这样做第一，但遇到错误2003334207：

 的NSData * soundData = [NSData的dataWithContentsOfURL：URL]
AVAudioPlayer *玩家= [[AVAudioPlayer页头] initWithData：soundData错误：＆放大器;错误]
 

似乎AVAudioPlayer真正想要的文件。所以，我把数据写入文件第一：

  NSURL * URL = [NSURL URLWithString：@http://a825.phobos.apple.com/us/r2000/005/Music/d8/a8/d2/mzi。 jelhjoev.aac.p.m4p];
NSData的* soundData = [NSData的dataWithContentsOfURL：URL]
* NSString的文件路径= [[NSSearchPathForDirectoriesInDomains（NSDocumentDirectory，
NSUserDomainMask，是）objectAtIndex：0]
stringByAppendingPathComponent：@sound.caf];
[soundData将writeToFile：文件路径原子：YES];
玩家= [[AVAudioPlayer页头] initWithContentsOfURL：[NSURL
fileURLWithPath：文件路径]错误：NULL];
的NSLog（@错误％@，错误）;
 

My Problem is the following. I got this code and i guess a corrupt NSURL since the AVAudioPlayer is nil after initializing:

NSString *dummyURLString = @"http://a825.phobos.apple.com/us/r2000/005/Music/d8/a8/d2/mzi.jelhjoev.aac.p.m4p";
NSError *error;
NSURL *url = [NSURL URLWithString:dummyURLString]; 
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
[player play];

Any suggestions what is going wrong here?

The &error shows this:

Error Domain=NSOSStatusErrorDomain Code=-43 "Operation could not be completed. (OSStatus error -43.)"

解决方案

I tried this first but got error 2003334207:

NSData *soundData = [NSData dataWithContentsOfURL:URL];
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithData:soundData error:&error];

Seems that AVAudioPlayer really wants a file. So I put the data into a file first:

NSURL *url = [NSURL URLWithString:@"http://a825.phobos.apple.com/us/r2000/005/Music/d8/a8/d2/mzi.jelhjoev.aac.p.m4p"]; 
NSData *soundData = [NSData dataWithContentsOfURL:url];
NSString *filePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
						NSUserDomainMask, YES) objectAtIndex:0] 
						stringByAppendingPathComponent:@"sound.caf"];
[soundData writeToFile:filePath atomically:YES];
player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL
				fileURLWithPath:filePath] error:NULL];  
NSLog(@"error %@", error);

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