Add Check for Peek Stream validity to decoder test.


Change-Id: I9b745670a9f842582c47e6001dc77480b31fb6a1
diff --git a/test/decode_test_driver.h b/test/decode_test_driver.h
index 4f7294c..ada2946 100644
--- a/test/decode_test_driver.h
+++ b/test/decode_test_driver.h
@@ -49,6 +49,9 @@
     vpx_codec_destroy(&decoder_);
   }
 
+  vpx_codec_err_t PeekStream(const uint8_t *cxdata, size_t size,
+                             vpx_codec_stream_info_t *stream_info);
+
   vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size);
 
   DxDataIterator GetDxData() {
@@ -85,6 +88,10 @@
         &decoder_, cb_get, cb_release, user_priv);
   }
 
+  const char* GetDecoderName() {
+    return vpx_codec_iface_name(CodecInterface());
+  }
+
  protected:
   virtual vpx_codec_iface_t* CodecInterface() const = 0;