Replace NULL with nullptr in all C++ files.

webrtc/modules/video_coding/test/test_util.cc

 /*
  *  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.
  */
 
@@ skipping 51 matching lines @@
      << extension;
   return ss.str();
 }
 
 }  // namespace
 
 FileOutputFrameReceiver::FileOutputFrameReceiver(
     const std::string& base_out_filename,
     uint32_t ssrc)
     : out_filename_(),
-      out_file_(NULL),
-      timing_file_(NULL),
+      out_file_(nullptr),
+      timing_file_(nullptr),
       width_(0),
       height_(0),
       count_(0) {
   std::string basename;
   std::string extension;
   if (base_out_filename.empty()) {
     basename = webrtc::test::OutputPath() + "rtp_decoded";
     extension = "yuv";
   } else {
     SplitFilename(base_out_filename, &basename, &extension);
   }
   std::stringstream ss;
   ss << basename << "_" << std::hex << std::setw(8) << std::setfill('0') << ssrc
      << "." << extension;
   out_filename_ = ss.str();
 }
 
 FileOutputFrameReceiver::~FileOutputFrameReceiver() {
-  if (timing_file_ != NULL) {
+  if (timing_file_ != nullptr) {
     fclose(timing_file_);
   }
-  if (out_file_ != NULL) {
+  if (out_file_ != nullptr) {
     fclose(out_file_);
   }
 }
 
 int32_t FileOutputFrameReceiver::FrameToRender(webrtc::VideoFrame& video_frame,
                                                rtc::Optional<uint8_t> qp) {
-  if (timing_file_ == NULL) {
+  if (timing_file_ == nullptr) {
     std::string basename;
     std::string extension;
     SplitFilename(out_filename_, &basename, &extension);
     timing_file_ = fopen((basename + "_renderTiming.txt").c_str(), "w");
-    if (timing_file_ == NULL) {
+    if (timing_file_ == nullptr) {
       return -1;
     }
   }
-  if (out_file_ == NULL || video_frame.width() != width_ ||
+  if (out_file_ == nullptr || video_frame.width() != width_ ||
       video_frame.height() != height_) {
     if (out_file_) {
       fclose(out_file_);
     }
     printf("New size: %dx%d\n", video_frame.width(), video_frame.height());
     width_ = video_frame.width();
     height_ = video_frame.height();
     std::string filename_with_width_height =
         AppendWidthHeightCount(out_filename_, width_, height_, count_);
     ++count_;
     out_file_ = fopen(filename_with_width_height.c_str(), "wb");
-    if (out_file_ == NULL) {
+    if (out_file_ == nullptr) {
       return -1;
     }
   }
   fprintf(timing_file_, "%u, %u\n", video_frame.timestamp(),
           webrtc::MaskWord64ToUWord32(video_frame.render_time_ms()));
   if (PrintVideoFrame(video_frame, out_file_) < 0) {
     return -1;
   }
   return 0;
 }
 
 webrtc::RtpVideoCodecTypes ConvertCodecType(const char* plname) {
   if (strncmp(plname, "VP8", 3) == 0) {
     return webrtc::kRtpVideoVp8;
   } else {
     // Default value.
     return webrtc::kRtpVideoGeneric;
   }
 }