Initial work on downsampling

The http connection is being closed before sending all data. May have something to do with the Range header

stream/downsampling_test.go

@@ -0,0 +1,29 @@
+package stream
+
+import (
+	. "github.com/deluan/gosonic/tests"
+	. "github.com/smartystreets/goconvey/convey"
+	"testing"
+)
+
+func TestDownsampling(t *testing.T) {
+
+	Init(t, false)
+
+	Convey("Subject: createDownsamplingCommand", t, func() {
+
+		Convey("It should create a valid command line", func() {
+			cmd, args := createDownsamplingCommand("/music library/file.mp3", 128)
+
+			So(cmd, ShouldEqual, "ffmpeg")
+			So(args[0], ShouldEqual, "-i")
+			So(args[1], ShouldEqual, "/music library/file.mp3")
+			So(args[2], ShouldEqual, "-b:a")
+			So(args[3], ShouldEqual, "128k")
+			So(args[4], ShouldEqual, "mp3")
+			So(args[5], ShouldEqual, "-")
+		})
+
+	})
+
+}