ffmpeg feature

argp.js

@@ -3,13 +3,17 @@ function gen(args) {
      file: "",
      sampleRate: 32000,
      output: "out.bin",
-     useFFmpeg: false
+     useFFmpeg: false,
+     help: false
   };
   args.forEach((v,i)=>{
-     if(i =< 1) return
+     if(i <= 1) return
+
      if(v == "--sampleRate" || v == "-r"){
         cf.sampleRate = parseInt(args[i+1]);
-     } else if(v == "--output" || v == "-o"){
+     }  else if(v == "--help" || v == "-h") {
+	cf.help = true
+     }  else if(v == "--output" || v == "-o"){
         cf.output = args[i+1]
      } else if(v == "--ffmpeg"){
         cf.useFFmpeg = true

ffmpeg.js

@@ -1,13 +1,25 @@
 let cp = require("child_process") // sussy variable name o_O
-
+const pth = require("path")
+const os = require("os")
+function makeid(length) {
+    let result = '';
+    const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+    const charactersLength = characters.length;
+    let counter = 0;
+    while (counter < length) {
+      result += characters.charAt(Math.floor(Math.random() * charactersLength));
+      counter += 1;
+    }
+    return result;
+}
 async function ffmpeg(input){
    let ret = {
-       path: ""
+       path: "",
        exitcode: 0
    };
-   let path = input+".wav" 
+   let path = pth.resolve(os.tmpdir(),makeid(16)+".wav")
    let proc = cp.spawn("ffmpeg",["-i",input,path])
-   proc.stdout.pipe(process.stdout),
+   proc.stdout.pipe(process.stdout)
    let get_code = ()=>new Promise(res=>proc.on("close",res))
    ret.exitcode = await get_code();
    ret.path = path

help.txt

@@ -0,0 +1,10 @@
+USAGE: (command) [OPTIONS] FILE
+Options:
+
+   -o / --output : Specify output file (default is out.bin)
+   -r / --sampleRate : Sample rate of output file (default is 32000)
+   --ffmpeg : Use ffmpeg to enable wavtobin to process other audio types
+
+Example:
+    (command) -r 32000 -o out.bin file.wav
+    (command) -r 48000 -o /home/myfile.bin --ffmpeg file.mp3

index.js

@@ -1,6 +1,6 @@
 #!/usr/bin/node
 console.log("[wtb] WaveToBin");
-const ffmpeg = require("./ffmpeg")
+const ffmpeg = require("./ffmpeg");
 (async function(){
 try {
   // Import library for handling wav files.
@@ -12,10 +12,14 @@ try {
   // Procure argyments
   const cf = require("./argp")(process.argv)
   // Read the file.
-
-  const inputFilePath = cf.file
+  if(cf.help){
+     console.log(fs.readFileSync("help.txt").toString("utf8"))
+     return
+  }
+  let inputFilePath = cf.file
   if(cf.useFFmpeg){
-      inputFilePath = ffmpeg(inputFilePath)
+      console.log("[wtb] Waiting for FFmpeg")
+      inputFilePath = (await ffmpeg(inputFilePath)).path
   }
   const fd = fs.readFileSync(inputFilePath);
   // Load input file into wf.