Amr音频转换Mp3格式

docker pull docker.io/liyinda/alpine_amrtomp3

https://github.com/liyinda/AmrToMp3

  //将filelist的文件列表传入ch管道 
  ch :=make(chan string)

  //创建goroutine获取文件列表并将列表传递给管道另一端进行音频转换
  go func(mine []os.FileInfo) {
    for _, item := range mine {
      ch <- item.Name()
    }
  }(filelist)

  go func() {
    for i :=0; i<= cpuNum; i++ {
      file := <-ch

      //获取文件的内容
      wfilepath := WORKDIR + file
      bfilepath := BAKDIR + today + "/" + file
      pfilepath := PRODUCTDIR + today + "/" + file

      var rs bool
      var fileExt string
      //获取文件名后缀
      fileExt = path.Ext(file) 
      newfilepath := ""
      audiofilepath := ""

      //操作日志记录
      logFile, logErr := os.OpenFile(*logFileName, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
      if logErr != nil {
        fmt.Println("Fail to find", *logFile, "AmrToMp3 start Failed")
        os.Exit(1)
      }
      defer logFile.Close()
      log.SetOutput(logFile)
      log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)

      switch {
        case fileExt == ".amr" :
          //进行amr到mp3的转换
          newfilepath = strings.Replace(wfilepath, ".amr", ".mp3", -1)
          comeAndTo := [...]string{wfilepath, newfilepath}
          rs = models.Arm2mp3(comeAndTo)
          log.Printf("%v Amr format conversion success \n", newfilepath)
        case fileExt == ".wav" :
          //进行wav到mp3的转换
          newfilepath = strings.Replace(wfilepath, ".wav", ".mp3", -1)
          comeAndTo := [...]string{wfilepath, newfilepath}
          rs = models.Arm2mp3(comeAndTo)
          log.Printf("%v Wav format conversion success \n", newfilepath)
        default:
          //os.Remove(wfilepath)
          os.Rename(wfilepath, bfilepath)
          log.Printf("%v conversion fail and backup \n", bfilepath)
      }

      if rs {
        //转换成功之后，将原始文件移动到备份目录
        os.Rename(wfilepath, bfilepath)
        //生产mp3文件路径
        audiofilepath = strings.Replace(pfilepath, ".amr", ".mp3", -1)
        //转换成功之后，将生成文件移动到生产目录
        os.Rename(newfilepath, audiofilepath)
      }
    }
  }()