bug fix

zhangmeng

2019-07-26 1518fb1f0e59beedfa32663adb3d0bee302f1ad5

 apipassive.go

@@ -26,10 +26,10 @@
   var l C.int

   p := C.wrap_fn_info_recorder(h.ffmpeg, &i, &l)
   if i == -1 {
   if p == nil {
      return -1, ""
   }
   defer C.free(unsafe.Pointer(p))
   C.free(unsafe.Pointer(p))

   return int(i), C.GoString(p)
}