Code Cleanup, rename outputbc to execbc, using buffered Writer

pkg/execbc/pipe.go

@@ -0,0 +1,29 @@
+package execbc
+
+import (
+	"bufio"
+	"io"
+	"os/exec"
+
+	"github.com/AlexxIT/go2rtc/pkg/core"
+)
+
+type pipeCloser struct {
+	io.Writer
+	io.Closer
+	cmd *exec.Cmd
+}
+
+func PipeCloser(cmd *exec.Cmd) (io.WriteCloser, error) {
+	stdin, err := cmd.StdinPipe()
+
+	if err != nil {
+		return nil, err
+	}
+
+	return pipeCloser{bufio.NewWriterSize(stdin, 640), stdin, cmd}, nil
+}
+
+func (p pipeCloser) Close() (err error) {
+	return core.Any(p.Closer.Close(), p.cmd.Process.Kill(), p.cmd.Wait())
+}