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如何使用C#AMR文件轉換成MP3

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如何使用C#AMR文件轉換成MP3


【如何使用C#AMR文件轉換成MP3】最近看來是跟聲音干上了啊！音頻轉換的第二種方法，這種方法相對第一種來說，要簡單的多！首先，你得下載個“ffmpeg.exe” 插件，然后把它放到你的項目中，如下圖：程序中會調用該文件，以助于轉換音頻格式！上代碼：using System;using System.Threading;using System.IO;using System.Diagnostics;using System.Security;public partial class cowala_201512Chritmas_amrtest : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){if (!IsPostBack){changedPlay.Visible = false;}}protected void Ffmpeg_Click(object sender, EventArgs e){if (AmrFileUp.HasFile){string key = AmrFileUp.FileName;string savepath = Server.MapPath("~/upload/amr/") + key;AmrFileUp.SaveAs(savepath);string mp3SavePth = Server.MapPath("~/upload/mp3/") + key.Split('.')[0].ToString() + ".mp3";if (!string.IsNullOrEmpty(ConvertToMp3(savepath, mp3SavePth))){changedPlay.Visible = true;changedPlay.Attributes.Add("src", "upload/mp3/" + key.Split('.')[0].ToString() + ".mp3");Response.Write("");}}}public string ConvertToMp3(string pathBefore, string pathLater){string c = Server.MapPath("/ffmpeg/") + @"ffmpeg.exe -i " + pathBefore + " " + pathLater;string str = RunCmd(c);return str;}/// /// 執行Cmd命令/// private string RunCmd(string c){try{ProcessStartInfo info = new ProcessStartInfo("cmd.exe");info.RedirectStandardOutput = false;info.UseShellExecute = false;Process p = Process.Start(info);p.StartInfo.UseShellExecute = false;p.StartInfo.RedirectStandardInput = true;p.StartInfo.RedirectStandardOutput = true;p.StartInfo.RedirectStandardError = true;p.Start();p.StandardInput.WriteLine(c);p.StandardInput.AutoFlush = true;Thread.Sleep(1000);p.StandardInput.WriteLine("exit");p.WaitForExit();string outStr = p.StandardOutput.ReadToEnd();p.Close();return outStr;}catch (Exception ex){return "error" + ex.Message;}}}

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