java 简易wav音频文件播放器

测试文件

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源码

import java.io.FileInputStream;import javax.sound.sampled.AudioFormat;import javax.sound.sampled.AudioSystem;import javax.sound.sampled.DataLine;import javax.sound.sampled.SourceDataLine;/*** 简易wave音频文件播放器* @author 作者 luhua* @version 创建时间：5月14日 下午3:20:11*/public class WavePlayer {public static void main(String[] args) throws Exception {String path = "F:\\testFile\\audio\\b.wav";if(null != args && args.length > 0) {path = args[0];}FileInputStream fis = new FileInputStream(path);/**解析wav头*/WavHeard pasrWaveHeard = pasrWaveHeard(fis);if(null != pasrWaveHeard) {System.out.println(pasrWaveHeard);AudioFormat.Encoding encoding = new AudioFormat.Encoding("PCM_SIGNED");//编码格式，采样率，每个样本的位数，声道，帧长（字节），帧数，是否按big-endian字节顺序存储AudioFormat format = new AudioFormat(encoding,pasrWaveHeard.sampleRate, pasrWaveHeard.formatSize, pasrWaveHeard.numChannels, pasrWaveHeard.blockAlign, pasrWaveHeard.sampleRate ,false);SourceDataLine auline = null;DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);System.out.println(format);auline = (SourceDataLine) AudioSystem.getLine(info);auline.open(format);auline.start();byte[] b = new byte[pasrWaveHeard.bytesPerSecond];int len = 0;while((len = fis.read(b))>0) {auline.write(b, 0, len);}auline.close();}}public static WavHeard pasrWaveHeard(FileInputStream fis) throws Exception{WavHeard wavHeard = new WavHeard();byte[] b = new byte[4];/**RIFF部分*/fis.read(wavHeard.riffType);if(!"RIFF".equalsIgnoreCase(new String(wavHeard.riffType))) {System.out.println("This is not a valid wav(RIFF) file.");return null;}/**riffSize*/fis.read(b);wavHeard.riffSize = (b[3]&0xff)<<24|(b[2]&0xff)<<16|(b[1]&0xff)<<8|(b[0]&0xff);/**wave*/fis.read(wavHeard.waveType);/**FMT */fis.read(wavHeard.formatType);if(!"FMT ".equalsIgnoreCase(new String(wavHeard.formatType))) {System.out.println("This is not a valid wav(FMT) file.");return null;}/**表示该区块数据的长度（不包含FMT 和fSize的长度）*/fis.read(b);wavHeard.formatSize = (b[3]&0xff)<<24 | (b[2]&0xff)<<16 | (b[1]&0xff)<<8 | (b[0]&0xff);/**PCM音频数据的值为1*/b = new byte[2];fis.read(b);pressionCode = (short) ((b[1]&0xff)<<8 | (b[0]&0xff));/**音频数据的声道数，1：单声道，2：双声道*/fis.read(b);wavHeard.numChannels = (short) ((b[1]&0xff)<<8 | (b[0]&0xff));/**采样率*/b = new byte[4];fis.read(b);wavHeard.sampleRate = (b[3]&0xff) <<24 | (b[2]&0xff)<<16 | (b[1]&0xff)<<8 | (b[0]&0xff);/**每秒数据字节数*/fis.read(b);wavHeard.bytesPerSecond = (b[3]&0xff) <<24 | (b[2]&0xff)<<16 | (b[1]&0xff)<<8 | (b[0]&0xff);/**每个采样所需字节数*/b = new byte[2];fis.read(b);wavHeard.blockAlign = (short) ((b[1]&0xff)<<8 | (b[0]&0xff));/**每个采样存储的bit数*/fis.read(b);wavHeard.bitsPerSample = (short) ((b[1]&0xff)<<8 | (b[0]&0xff));/**data*/fis.read(wavHeard.dataType);/**dataSize*/b = new byte[4];fis.read(b);wavHeard.dataSize = (b[3]&0xff) <<24 | (b[2]&0xff)<<16 | (b[1]&0xff)<<8 | (b[0]&0xff);return wavHeard;}}class WavHeard{public byte[] riffType = new byte[4]; //4byte,资源交换文件标志:RIFFpublic int riffSize; //4byte,从下个地址到文件结尾的总字节数 public byte[] waveType = new byte[4]; //4byte,wav文件标志:WAVEpublic byte[] formatType = new byte[4]; //4byte,波形文件标志:FMT(最后一位空格符) public int formatSize;//4byte,音频属性(compressionCode,numChannels,sampleRate,bytesPerSecond,blockAlign,bitsPerSample)所占字节数 public short compressionCode;//2byte,格式种类(1-线性pcm-WAVE_FORMAT_PCM,WAVEFORMAT_ADPCM) public short numChannels; //2byte,通道数 public int sampleRate;//4byte,采样率 public int bytesPerSecond; //4byte,传输速率 public short blockAlign;//2byte,数据块的对齐，即DATA数据块长度 public short bitsPerSample; //2byte,采样精度-PCM位宽 public byte[] dataType = new byte[4];//4byte,数据标志:data public int dataSize; //4byte,从下个地址到文件结尾的总字节数，即除了wav header以外的pcm data length @Overridepublic String toString() {return "------------------RIFF------------------\n"+ "\n riffType\t:"+new String(riffType)+"\n riffSize\t:"+riffSize+"\n waveType\t:"+new String(waveType)+"\n\n------------------FORMAT----------------\n"+"\n formatType\t:"+ new String(formatType) +"\n formatSize\t:"+ formatSize +"\n compressionCode:"+ compressionCode +"\n numChannels\t:" + numChannels +"\n sampleRate\t:" + sampleRate +"\n bytesPerSecond\t:" + bytesPerSecond +"\n blockAlign\t:" + blockAlign +"\n bitsPerSample\t:" + bitsPerSample +"\n dataType\t:" + new String(dataType) +"\n dataSize\t:" + dataSize + "\n\n-----------------------------------------";}}

相关资料

wav音频文件解析

java播放pcm音频文件