Add buffer to pipe reader

internal/exec/pipe.go

@@ -1,9 +1,11 @@
 package exec
 
 import (
-	"github.com/AlexxIT/go2rtc/pkg/core"
+	"bufio"
 	"io"
 	"os/exec"
+
+	"github.com/AlexxIT/go2rtc/pkg/core"
 )
 
 // PipeCloser - return StdoutPipe that Kill cmd on Close call
@@ -13,14 +15,16 @@ func PipeCloser(cmd *exec.Cmd) (io.ReadCloser, error) {
 		return nil, err
 	}
 
-	return pipeCloser{stdout, cmd}, nil
+	// add buffer for pipe reader to reduce syscall
+	return pipeCloser{bufio.NewReaderSize(stdout, core.BufferSize), stdout, cmd}, nil
 }
 
 type pipeCloser struct {
-	io.ReadCloser
+	io.Reader
+	io.Closer
 	cmd *exec.Cmd
 }
 
 func (p pipeCloser) Close() error {
-	return core.Any(p.ReadCloser.Close(), p.cmd.Process.Kill(), p.cmd.Wait())
+	return core.Any(p.Closer.Close(), p.cmd.Process.Kill(), p.cmd.Wait())
 }