@@ -439,7 +439,7 @@ static int v4l2_set_parameters(AVFormatContext *s1, AVFormatParameters *ap)

     struct v4l2_streamparm streamparm = {0};

     struct v4l2_fract *tpf = &streamparm.parm.capture.timeperframe;

     int i, ret;

-    AVRational fps;

+    AVRational fps={0};

     streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;