Java怎么把mp3音频封包rtp

要将MP3音频封包为RTP，您可以使用Java的JMF（Java Media Framework）库。以下是一些基本步骤：

1. 通过JMF创建一个RTP会话。

SessionManager manager = new SessionManager();
SessionAddress localAddress = new SessionAddress();
SessionAddress remoteAddress = new SessionAddress(remoteIP, remotePort);
Session session = manager.createSession(localAddress, remoteAddress);

2. 创建一个MP3音频流。

DataSource source = Manager.createDataSource(new MediaLocator("file:///path/to/mp3/file.mp3"));
Processor processor = Manager.createRealizedProcessor(new ProcessorModel(source, new Format[] {new AudioFormat(AudioFormat.MPEGLAYER3)}));
TrackControl trackControl = processor.getTrackControls()[0];
DataSource mp3Source = processor.getDataOutput();

3. 将音频流封装为RTP数据包并发送。

Buffer buffer = new Buffer();
buffer.setData(mp3Source.getBuffer().getData());
buffer.setOffset(0);
buffer.setLength(buffer.getData().length);
buffer.setFormat(new AudioFormat(AudioFormat.MPEGLAYER3));
buffer.setTimeStamp(System.currentTimeMillis());
buffer.setSequenceNumber(sequenceNumber++);
trackControl.setFormat(new RTPFormat(AudioFormat.MPEGLAYER3));
trackControl.write(buffer);

注意，这只是一个基本的示例代码，您需要根据实际情况调整代码以适应您的应用程序。