Android收音機歌曲標題

Question

我正在收音機應用程序。我使用Android媒體播放收音機工作正常。 可以知道歌名嗎？ 我在桌面上播放vlc播放器中的相同網址時，會顯示歌名。 如果無論如何請幫助我。

我也想在2.1中實現

謝謝。

Answer 1

我有2.2

protected URL streamUrl; 
private Map<String, String> metadata; 
private boolean isError; 

public IcyStreamMeta(URL streamUrl) { 
    setStreamUrl(streamUrl); 

    isError = false; 
} 

/** 
* Get artist using stream's title 
* 
* @return String 
* @throws IOException 
*/ 
public String getArtist() throws IOException { 
    Map<String, String> data = getMetadata(); 

    if (!data.containsKey("StreamTitle")) 
     return ""; 

    String streamTitle = data.get("StreamTitle"); 
    String title = streamTitle.substring(0, streamTitle.indexOf("-")); 
    return title.trim(); 
} 

/** 
* Get title using stream's title 
* 
* @return String 
* @throws IOException 
*/ 
public String getTitle() throws IOException { 
    Map<String, String> data = getMetadata(); 

    if (!data.containsKey("StreamTitle")) 
     return ""; 

    String streamTitle = data.get("StreamTitle"); 
    String artist = streamTitle.substring(streamTitle.indexOf("-")+1); 
    return artist.trim(); 
} 

public Map<String, String> getMetadata() throws IOException { 
    if (metadata == null) { 
     refreshMeta(); 
    } 

    return metadata; 
} 

public void refreshMeta() throws IOException { 
    retreiveMetadata(); 
} 

private void retreiveMetadata() throws IOException { 
    URLConnection con = streamUrl.openConnection(); 
    con.setRequestProperty("Icy-MetaData", "1"); 
    con.setRequestProperty("Connection", "close"); 
    con.setRequestProperty("Accept", null); 
    con.connect(); 

    int metaDataOffset = 0; 
    Map<String, List<String>> headers = con.getHeaderFields(); 
    InputStream stream = con.getInputStream(); 

    if (headers.containsKey("icy-metaint")) { 
     // Headers are sent via HTTP 
     metaDataOffset = Integer.parseInt(headers.get("icy-metaint").get(0)); 
    } else { 
     // Headers are sent within a stream 
     StringBuilder strHeaders = new StringBuilder(); 
     char c; 
     while ((c = (char)stream.read()) != -1) { 
      strHeaders.append(c); 
      if (strHeaders.length() > 5 && (strHeaders.substring((strHeaders.length() - 4), strHeaders.length()).equals("\r\n\r\n"))) { 
       // end of headers 
       break; 
      } 
     } 

     // Match headers to get metadata offset within a stream 
     Pattern p = Pattern.compile("\\r\\n(icy-metaint):\\s*(.*)\\r\\n"); 
     Matcher m = p.matcher(strHeaders.toString()); 
     if (m.find()) { 
      metaDataOffset = Integer.parseInt(m.group(2)); 
     } 
    } 

    // In case no data was sent 
    if (metaDataOffset == 0) { 
     isError = true; 
     return; 
    } 

    // Read metadata 
    int b; 
    int count = 0; 
    int metaDataLength = 4080; // 4080 is the max length 
    boolean inData = false; 
    StringBuilder metaData = new StringBuilder(); 
    // Stream position should be either at the beginning or right after headers 
    while ((b = stream.read()) != -1) { 
     count++; 

     // Length of the metadata 
     if (count == metaDataOffset + 1) { 
      metaDataLength = b * 16; 
     } 

     if (count > metaDataOffset + 1 && count < (metaDataOffset + metaDataLength)) {    
      inData = true; 
     } else {     
      inData = false;    
     }    
     if (inData) {    
      if (b != 0) {     
       metaData.append((char)b);    
      }   
     }    
     if (count > (metaDataOffset + metaDataLength)) { 
      break; 
     } 

    } 

    // Set the data 
    metadata = IcyStreamMeta.parseMetadata(metaData.toString()); 

    // Close 
    stream.close(); 
} 

public boolean isError() { 
    return isError; 
} 

public URL getStreamUrl() { 
    return streamUrl; 
} 

public void setStreamUrl(URL streamUrl) { 
    this.metadata = null; 
    this.streamUrl = streamUrl; 
    this.isError = false; 
} 

public static Map<String, String> parseMetadata(String metaString) { 
    Map<String, String> metadata = new HashMap(); 
    String[] metaParts = metaString.split(";"); 
    Pattern p = Pattern.compile("^([a-zA-Z]+)=\\'([^\\']*)\\'$"); 
    Matcher m; 
    for (int i = 0; i < metaParts.length; i++) { 
     m = p.matcher(metaParts[i]); 
     if (m.find()) { 
      metadata.put((String)m.group(1), (String)m.group(2)); 
     } 
    } 

    return metadata; 
} 

使用線程

public void startThread(){ 

    timer = new Timer(); 
    timer.schedule(new TimerTask() { 
     public void run() { 

      URL url; 
      Message msg = handler.obtainMessage(); 
      try { 
       url = new URL(URL); 
        IcyStreamMeta icy = new IcyStreamMeta(url); 

        Log.d("SONG",icy.getTitle()); 
        msg.obj = icy.getTitle(); 

       Log.d("ARTITSi",icy.getArtist()); 
       handler.sendMessage(msg); 
      } catch (MalformedURLException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      }catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

     } 
    }, 0, 10000); 

} 

Answer 2

你會爲此使用MetaDataRetriever類。如果你想要歌名，你可以使用METADATA_KEY_TITLE鍵。因此，例如，你可以寫一些像這樣的代碼：

MetadataRetriever myRetriever = new MetadataRetriever(); 
myRetriever.setDataSource(/*specify you data source here*/); 
String songName = myRetriever.extractMetadata(MetadataRetriever.METADATA_KEY_TITLE); 

如果你低於API 10級開發，你將不得不使用別的東西來獲取元數據。在這種情況下，MyID3 library可能會訣竅。