Refactoring: Hide VideoCodec.codecSpecific as "private"

webrtc/modules/video_coding/codecs/tools/video_quality_measurement.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 197 matching lines @@
   webrtc::VideoCodingModule::Codec(webrtc::kVideoCodecVP8,
                                    config->codec_settings);
 
   // Check the temporal layers.
   if (FLAGS_temporal_layers < 0 ||
       FLAGS_temporal_layers > webrtc::kMaxTemporalStreams) {
     fprintf(stderr, "Temporal layers number must be 0-4, was: %d\n",
             FLAGS_temporal_layers);
     return 13;
   }
-  config->codec_settings->codecSpecific.VP8.numberOfTemporalLayers =
-      FLAGS_temporal_layers;
+  config->codec_settings->VP8()->numberOfTemporalLayers = FLAGS_temporal_layers;
 
   // Check the bit rate.
   if (FLAGS_bitrate <= 0) {
     fprintf(stderr, "Bit rate must be >0 kbps, was: %d\n", FLAGS_bitrate);
     return 5;
   }
   config->codec_settings->startBitrate = FLAGS_bitrate;
 
   // Check the keyframe interval.
   if (FLAGS_keyframe_interval < 0) {
@@ skipping 315 matching lines @@
   }
   if (FLAGS_python) {
     PrintPythonOutput(config, stats, ssim_result, psnr_result);
   }
   delete processor;
   delete encoder;
   delete decoder;
   Log("Quality test finished!");
   return 0;
 }