Piping Example

[thewalrusisben]

Hey there, just wondering if it would be possible to provide a minimal example of how to use the InputPipe / OutputPipe methods available. I've been trying to use them but am not totally sure how the readers and writers are supposed to be set up.

Thank you!

[meandrewdev]

type DiscardCloser struct {
	io.Writer
}

func (DiscardCloser) Close() error { return nil }

rc := ioutil.NopCloser(input)
var wc io.WriteCloser = &DiscardCloser{}
progress, err := ffmpeg.
		New(ffmpegConf).
		InputPipe(&wc, &rc).
		Output(output).
		WithOptions(opts).
		Start(opts)

This code generating error "missing input option"

[Mran]

@thewalrusisben @confirm2315

cmd := exec.Command("ffmpeg", "-i", path, "-ss", sTime, "-t", "3", "-vn", "-f", "mp3", "pipe:")

r, _ := cmd.StdoutPipe()

_ = cmd.Start()

bb, _ := ioutil.ReadAll(r)

I readed his code, seems not support pipe yet

this is my code.
just notice the argument "-f",and "pipe:"