It seems doesn's work

[Eminlin]

Thank you for your contribution
This let me understand the operation mechanism of SSTV
Some problems were encountered in the process of using, Looking forward to your reply

Origin Image

M1

Robot36

Here are some codes I refer from sstv-cli/main.go

	f, err := os.Open("./xx.png")
	if err != nil {
		panic(err.Error())
	}
	img, _, err := image.Decode(f)
	if err != nil {
		panic(err.Error())
	}
	format := &audio.Format{
		NumChannels: 1,
		SampleRate:  44100,
	}
	audio := sstv.NewMartin(sstv.Martin1, format)
	fmt.Print("resizing ... ")
	targetRes := audio.Resolution().Size()
	currentRes := img.Bounds().Size()
	if currentRes.X != targetRes.X || currentRes.Y != targetRes.Y {
		img = resize.Resize(uint(targetRes.X), uint(targetRes.Y), img, resize.Lanczos3)
		fmt.Print("ok\n")
	} else {
		fmt.Print("skipped\n")
	}
	fmt.Print("generating ... ")
	buf := audio.Encode(img)
	fmt.Print("ok\n")
	fmt.Print("encoding ... ")
	if wr, err := os.OpenFile("temp.wav", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm); err == nil {
		defer wr.Close()
		enc := wav.NewEncoder(wr, 44100, sstv.BitDepth, 1, 1)
		defer enc.Close()
		if err = enc.Write(buf.AsIntBuffer()); err != nil {
			fmt.Printf("failed: %s", err)
			os.Exit(2)
		}

		fmt.Print("ok\n")
	} else {
		fmt.Printf("failed: %s\n", err)
		os.Exit(2)
	}