Replace NULL with nullptr in all C++ files.

webrtc/modules/video_coding/codecs/i420/i420.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.
  */
 
 #include "webrtc/modules/video_coding/codecs/i420/include/i420.h"
 
 #include <limits>
 #include <string>
 
 #include "webrtc/api/video/i420_buffer.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 
 namespace {
 const size_t kI420HeaderSize = 4;
 }
 
 namespace webrtc {
 
 I420Encoder::I420Encoder()
-    : _inited(false), _encodedImage(), _encodedCompleteCallback(NULL) {}
+    : _inited(false), _encodedImage(), _encodedCompleteCallback(nullptr) {}
 
 I420Encoder::~I420Encoder() {
   _inited = false;
   delete[] _encodedImage._buffer;
 }
 
 int I420Encoder::Release() {
   // Should allocate an encoded frame and then release it here, for that we
   // actually need an init flag.
-  if (_encodedImage._buffer != NULL) {
+  if (_encodedImage._buffer != nullptr) {
     delete[] _encodedImage._buffer;
-    _encodedImage._buffer = NULL;
+    _encodedImage._buffer = nullptr;
   }
   _inited = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Encoder::InitEncode(const VideoCodec* codecSettings,
                             int /*numberOfCores*/,
                             size_t /*maxPayloadSize */) {
-  if (codecSettings == NULL) {
+  if (codecSettings == nullptr) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   if (codecSettings->width < 1 || codecSettings->height < 1) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
 
   // Allocating encoded memory.
-  if (_encodedImage._buffer != NULL) {
+  if (_encodedImage._buffer != nullptr) {
     delete[] _encodedImage._buffer;
-    _encodedImage._buffer = NULL;
+    _encodedImage._buffer = nullptr;
     _encodedImage._size = 0;
   }
   const size_t newSize =
       CalcBufferSize(kI420, codecSettings->width, codecSettings->height) +
       kI420HeaderSize;
   uint8_t* newBuffer = new uint8_t[newSize];
-  if (newBuffer == NULL) {
+  if (newBuffer == nullptr) {
     return WEBRTC_VIDEO_CODEC_MEMORY;
   }
   _encodedImage._size = newSize;
   _encodedImage._buffer = newBuffer;
 
   // If no memory allocation, no point to init.
   _inited = true;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Encoder::Encode(const VideoFrame& inputImage,
                         const CodecSpecificInfo* /*codecSpecificInfo*/,
                         const std::vector<FrameType>* /*frame_types*/) {
   if (!_inited) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
   }
-  if (_encodedCompleteCallback == NULL) {
+  if (_encodedCompleteCallback == nullptr) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
   }
 
   _encodedImage._frameType = kVideoFrameKey;
   _encodedImage._timeStamp = inputImage.timestamp();
   _encodedImage._encodedHeight = inputImage.height();
   _encodedImage._encodedWidth = inputImage.width();
 
   int width = inputImage.width();
   if (width > std::numeric_limits<uint16_t>::max()) {
@@ skipping 40 matching lines @@
   return buffer;
 }
 
 int I420Encoder::RegisterEncodeCompleteCallback(
     EncodedImageCallback* callback) {
   _encodedCompleteCallback = callback;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 I420Decoder::I420Decoder()
-    : _width(0),
-      _height(0),
-      _inited(false),
-      _decodeCompleteCallback(NULL) {}
+    : _width(0), _height(0), _inited(false), _decodeCompleteCallback(nullptr) {}
 
 I420Decoder::~I420Decoder() {
   Release();
 }
 
 int I420Decoder::InitDecode(const VideoCodec* codecSettings,
                             int /*numberOfCores */) {
-  if (codecSettings == NULL) {
+  if (codecSettings == nullptr) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   } else if (codecSettings->width < 1 || codecSettings->height < 1) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   _width = codecSettings->width;
   _height = codecSettings->height;
   _inited = true;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Decoder::Decode(const EncodedImage& inputImage,
                         bool /*missingFrames*/,
                         const RTPFragmentationHeader* /*fragmentation*/,
                         const CodecSpecificInfo* /*codecSpecificInfo*/,
                         int64_t /*renderTimeMs*/) {
-  if (inputImage._buffer == NULL) {
+  if (inputImage._buffer == nullptr) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
-  if (_decodeCompleteCallback == NULL) {
+  if (_decodeCompleteCallback == nullptr) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
   }
   if (inputImage._length <= 0) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   if (inputImage._completeFrame == false) {
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
   }
   if (!_inited) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
@@ skipping 48 matching lines @@
     DecodedImageCallback* callback) {
   _decodeCompleteCallback = callback;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Decoder::Release() {
   _inited = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 }  // namespace webrtc