wcap-decode: Fix timestamp overflow
diff --git a/wcap/vpxenc.c b/wcap/vpxenc.c
index 8edeb55..1de4f92 100644
--- a/wcap/vpxenc.c
+++ b/wcap/vpxenc.c
@@ -412,7 +412,7 @@
 	    input->output_msecs = input->wcap->msecs;
 	}
 
-	while (input->output_msecs > input->wcap->msecs)
+	while (input->output_msecs - input->wcap->msecs < INT32_MAX)
             if (!wcap_decoder_get_frame(input->wcap))
                 return 0;