First commit

Tesses.YouTubeDownloader/src/videodownload/transcodeaudio.tcross

@@ -0,0 +1,54 @@
+class TYTD.TranscodeAudio : IVideoDownload {
+    private id;
+    private ncv;
+    private tytd;
+    private ext;
+
+    public TranscodeAudio(id,ext)
+    {
+        this.id = id;
+        this.ext = ext;
+        this.ncv = new TYTD.AOVideoDownload(id);
+    }
+
+    public setTYTD(tytd)
+    {
+        this.tytd = tytd;
+        return this.ncv.TYTD = tytd;
+    }
+
+    public setProgress(p)
+    {
+        return this.ncv.Progress = p;
+    }
+
+    public getVideo()
+    {
+        return this.ncv.Video;
+    }
+
+    public Start()
+    {
+        var id = this.id;
+        this.ncv.Start();
+
+        var p = new Process();
+        p.FileName = Env.GetRealExecutablePath("ffmpeg").ToString();
+         
+        var dir = this.tytd.DatabaseDirectory / "Streams"/this.id.Substring(0,4)/this.id.Substring(4);
+        var ao = dir / "ao.bin";
+        var out = dir / $"conv{this.ext}";
+        if(FS.Local.FileExists(out)) return;
+        var args=["-y","-i",ao.ToString()];
+
+       
+        args.Add("-preset");
+        args.Add("ultrafast");
+        args.Add(out.ToString());
+        
+
+        p.Arguments = args;
+        if(p.Start())
+            p.Join();
+    }
+}