codec/h264/lex.go: simplified return logic

codec/h264/lex.go

@@ -67,16 +67,12 @@ func Lex(dst io.Writer, src io.Reader, delay time.Duration) error {
 	copy(buf, h264Prefix[:])
 	writeOut := false
 
-outer:
 	for {
 		var b byte
 		var err error
 		buf, b, err = c.ScanUntil(buf, 0x00)
 		if err != nil {
-			if err != io.EOF {
-				return err
-			}
-			break
+			return err
 		}
 
 		for n := 1; b == 0x0 && n < 4; n++ {
@@ -85,7 +81,7 @@ outer:
 				if err != io.EOF {
 					return err
 				}
-				break outer
+				return io.ErrUnexpectedEOF
 			}
 			buf = append(buf, b)
 
@@ -110,7 +106,7 @@ outer:
 				if err != io.EOF {
 					return err
 				}
-				break outer
+				return io.ErrUnexpectedEOF
 			}
 			buf = append(buf, b)
 
@@ -128,8 +124,4 @@ outer:
 			}
 		}
 	}
-	if len(buf) == len(h264Prefix) {
-		return io.EOF
-	}
-	return io.ErrUnexpectedEOF
 }