Small updates to test::Stats.

webrtc/modules/video_coding/codecs/test/stats.h

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_STATS_H_
 #define WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_STATS_H_
 
 #include <vector>
 
 #include "webrtc/common_types.h"
 
 namespace webrtc {
 namespace test {
 
-// Contains statistics of a single frame that has been processed.
+// Contains statistics of a single processed frame.
 struct FrameStatistic {
-  FrameStatistic();
-
-  bool encoding_successful;
-  bool decoding_successful;
-  int encode_return_code;
-  int decode_return_code;
-  int encode_time_in_us;
-  int decode_time_in_us;
-  int qp;
-  int frame_number;
+  bool encoding_successful = false;
+  bool decoding_successful = false;
+  int encode_return_code = 0;
+  int decode_return_code = 0;
+  int encode_time_in_us = 0;
+  int decode_time_in_us = 0;
+  int qp = -1;
+  int frame_number = 0;
   // How many packets were discarded of the encoded frame data (if any).
-  int packets_dropped;
-  size_t total_packets;
+  int packets_dropped = 0;
+  size_t total_packets = 0;
 
   // Current bit rate. Calculated out of the size divided with the time
   // interval per frame.
-  int bit_rate_in_kbps;
+  int bit_rate_in_kbps = 0;
 
-  // Copied from EncodedImage
-  size_t encoded_frame_length_in_bytes;
-  webrtc::FrameType frame_type;
+  // Copied from EncodedImage.
+  size_t encoded_frame_length_in_bytes = 0;
+  webrtc::FrameType frame_type = kVideoFrameDelta;
 };
 
 // Handles statistics from a single video processing run.
 // Contains calculation methods for interesting metrics from these stats.
 class Stats {
  public:
   typedef std::vector<FrameStatistic>::iterator FrameStatisticsIterator;
 
   Stats();
   virtual ~Stats();
 
   // Add a new statistic data object.
-  // The frame number must be incrementing and start at zero in order to use
-  // it as an index for the frame_statistics_ vector.
+  // The |frame_number| must be incrementing and start at zero in order to use
+  // it as an index for the FrameStatistic vector.
   // Returns the newly created statistic object.
   FrameStatistic& NewFrame(int frame_number);
 
   // Prints a summary of all the statistics that have been gathered during the
-  // processing
+  // processing.
   void PrintSummary();
 
   std::vector<FrameStatistic> stats_;
 };
 
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_STATS_H_