Add stats (histograms) for vp8 screenshare layers

webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc

 /*
  *  Copyright (c) 2014 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/vp8/simulcast_encoder_adapter.h"
 
 #include <algorithm>
 
 // NOTE(ajm): Path provided by gyp.
 #include "libyuv/scale.h"  // NOLINT
 
 #include "webrtc/base/checks.h"
 #include "webrtc/modules/video_coding/codecs/vp8/screenshare_layers.h"
+#include "webrtc/system_wrappers/include/clock.h"
 
 namespace {
 
 const unsigned int kDefaultMinQp = 2;
 const unsigned int kDefaultMaxQp = 56;
 // Max qp for lowest spatial resolution when doing simulcast.
 const unsigned int kLowestResMaxQp = 45;
 
 uint32_t SumStreamTargetBitrate(int streams, const webrtc::VideoCodec& codec) {
   uint32_t bitrate_sum = 0;
@@ skipping 65 matching lines @@
 const float kTl1MaxTimeToDropFrames = 20.0f;
 
 struct ScreenshareTemporalLayersFactory : webrtc::TemporalLayersFactory {
   ScreenshareTemporalLayersFactory()
       : tl1_frame_dropper_(kTl1MaxTimeToDropFrames) {}
 
   virtual ~ScreenshareTemporalLayersFactory() {}
 
   virtual webrtc::TemporalLayers* Create(int num_temporal_layers,
                                          uint8_t initial_tl0_pic_idx) const {
-    return new webrtc::ScreenshareLayers(num_temporal_layers, rand());
+    return new webrtc::ScreenshareLayers(num_temporal_layers, rand(),
+                                         webrtc::Clock::GetRealTimeClock());
   }
 
   mutable webrtc::FrameDropper tl0_frame_dropper_;
   mutable webrtc::FrameDropper tl1_frame_dropper_;
 };
 
 // An EncodedImageCallback implementation that forwards on calls to a
 // SimulcastEncoderAdapter, but with the stream index it's registered with as
 // the first parameter to Encoded.
 class AdapterEncodedImageCallback : public webrtc::EncodedImageCallback {
@@ skipping 383 matching lines @@
   if (streaminfos_.size() != 1)
     return false;
   return streaminfos_[0].encoder->SupportsNativeHandle();
 }
 
 const char* SimulcastEncoderAdapter::ImplementationName() const {
   return implementation_name_.c_str();
 }
 
 }  // namespace webrtc