C#获取WAVE文件文件头信息

C#获取WAVE文件文件头信息2007-09-30using System;

using System.IO;

using System.Text;

namespace WAV

{

/// <summary>

/// Summary description for Wav.

/// </summary>

public class Wav

{

public Wav（）

{

// TODO: Add constructor logic here

}

[STAThread]

static void Main（string[] args）

{

// TODO: Add code to start application here

string strpath=@"C:Documents and SettingsAdministrator桌面 rojan怀念战友.wav";//=@"F:Music";

if（args.Length>0）

{

strpath=args[0].Trim（）;

}

if（File.Exists（strpath））

{

GetWavInfo（strpath）;

Console.WriteLine（"GetWavInfo Successfully！"）;

//Console.WriteLine（""）;

}

else

{

Console.Write（"Please Enter the write filepath！ "）;

Console.Write（"用法: WAV [Full Path Of Your WAV filepath]"）;

}

public struct WavInfo

{

public string groupid;

public string rifftype;

public long filesize;

public string chunkid;

public long chunksize;

public short wformattag; //记录着此声音的格式代号，例如WAVE_FORMAT_PCM，WAVE_F0RAM_ADPCM等等。

public ushort wchannels; //记录声音的频道数。

public ulong dwsamplespersec;//记录每秒取样数。

public ulong dwavgbytespersec;//记录每秒的数据量。

public ushort wblockalign;//记录区块的对齐单位。

public ushort wbitspersample;//记录每个取样所需的位元数。

public string datachunkid;

public long datasize;

}

public static void GetWavInfo（string strpath）

{

WavInfo wavInfo = new WavInfo（）;

FileInfo fi = new FileInfo（strpath）;

System.IO.FileStream fs=fi.OpenRead（）;

if（fs.Length>=44）

{

byte[] bInfo=new byte[44];

fs.Read（bInfo,0,44）;

System.Text.Encoding.Default.GetString（bInfo,0,4）;

if（System.Text.Encoding.Default.GetString（bInfo,0,4）=="RIFF"&&System.Text.Encoding.Default.GetString（bInfo,8,4）=="WAVE"&&System.Text.Encoding.Default.GetString（bInfo,12,4）=="fmt "）

{

wavInfo.groupid = System.Text.Encoding.Default.GetString（bInfo,0,4）;

System.BitConverter.ToInt32（bInfo,4）;

wavInfo.filesize = System.BitConverter.ToInt32（bInfo,4）;

//wavInfo.filesize = Convert.ToInt64（System.Text.Encoding.Default.GetString（bInfo,4,4））;

wavInfo.rifftype = System.Text.Encoding.Default.GetString（bInfo,8,4）;

wavInfo.chunkid = System.Text.Encoding.Default.GetString（bInfo,12,4）;

wavInfo.chunksize = System.BitConverter.ToInt32（bInfo,16）;

wavInfo.wformattag = System.BitConverter.ToInt16（bInfo,20）;

wavInfo.wchannels = System.BitConverter.ToUInt16（bInfo,22）;

wavInfo.dwsamplespersec = System.BitConverter.ToUInt32（bInfo,24）;

wavInfo.dwavgbytespersec = System.BitConverter.ToUInt32（bInfo,28）;

wavInfo.wblockalign = System.BitConverter.ToUInt16（bInfo,32）;

wavInfo.wbitspersample = System.BitConverter.ToUInt16（bInfo,34）;

wavInfo.datachunkid = System.Text.Encoding.Default.GetString（bInfo,36,4）;

wavInfo.datasize = System.BitConverter.ToInt32（bInfo,40）;

System.Console.WriteLine（"groupid:"+wavInfo.groupid）;

System.Console.WriteLine（"filesize:"+wavInfo.filesize）;

System.Console.WriteLine（"rifftype:"+wavInfo.rifftype）;

System.Console.WriteLine（"chunkid:"+wavInfo.chunkid）;

System.Console.WriteLine（"chunksize:"+wavInfo.chunksize）;

System.Console.WriteLine（"wformattag:"+wavInfo.wformattag）;

System.Console.WriteLine（"wchannels:"+wavInfo.wchannels）;

System.Console.WriteLine（"dwsamplespersec:"+wavInfo.dwsamplespersec）;

System.Console.WriteLine（"dwavgbytespersec:"+wavInfo.dwavgbytespersec）;

System.Console.WriteLine（"wblockalign:"+wavInfo.wblockalign）;

System.Console.WriteLine（"wbitspersample:"+wavInfo.wbitspersample）;

System.Console.WriteLine（"datachunkid:"+wavInfo.datachunkid）;

System.Console.WriteLine（"datasize:"+wavInfo.datasize）;

}