✨ Watch video

media/watch.go

@@ -0,0 +1,45 @@
+package media
+
+import (
+	"github.com/creack/pty"
+	"golang.org/x/term"
+	"io"
+	"os"
+	"os/exec"
+	"os/signal"
+	"syscall"
+)
+
+func Watch(path string) {
+	cmd := exec.Command("mpv", "--osd-fractions", "--term-osd=force", path)
+	ptmx, err := pty.Start(cmd)
+
+	if err != nil {
+		panic(err)
+	}
+	// Make sure to close the pty at the end.
+	defer func() { ptmx.Close() }() // Best effort.
+
+	// Handle pty size.
+	ch := make(chan os.Signal, 1)
+	signal.Notify(ch, syscall.SIGWINCH)
+	go func() {
+		for range ch {
+			pty.InheritSize(os.Stdin, ptmx)
+		}
+	}()
+	ch <- syscall.SIGWINCH                        // Initial resize.
+	defer func() { signal.Stop(ch); close(ch) }() // Cleanup signals when done.
+
+	// Set stdin in raw mode.
+	oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
+	if err != nil {
+		panic(err)
+	}
+	defer func() { term.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
+
+	// Copy stdin to the pty and the pty to stdout.
+	// NOTE: The goroutine will keep reading until the next keystroke before returning.
+	go func() { io.Copy(ptmx, os.Stdin) }()
+	io.Copy(os.Stdout, ptmx)
+}