Encode perf test

Change-Id: I61993946fe5cbcd7ebeb6302efd9538bff022e5a
diff --git a/test/decode_perf_test.cc b/test/decode_perf_test.cc
index b612f23..11529b3 100644
--- a/test/decode_perf_test.cc
+++ b/test/decode_perf_test.cc
@@ -92,6 +92,7 @@
   const double fps = double(frames) / elapsed_secs;
 
   printf("{\n");
+  printf("\t\"type\" : \"decode_perf_test\",\n");
   printf("\t\"version\" : \"%s\",\n", VERSION_STRING_NOSP);
   printf("\t\"videoName\" : \"%s\",\n", video_name);
   printf("\t\"threadCount\" : %u,\n", threads);