Add stats (histograms) for vp8 screenshare layers

webrtc/modules/video_coding/codecs/vp8/vp8_impl.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 10 matching lines @@
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/trace_event.h"
 #include "webrtc/common_types.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
 #include "webrtc/modules/video_coding/codecs/vp8/include/vp8_common_types.h"
 #include "webrtc/modules/video_coding/codecs/vp8/screenshare_layers.h"
 #include "webrtc/modules/video_coding/codecs/vp8/temporal_layers.h"
+#include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/system_wrappers/include/tick_util.h"
 
 namespace webrtc {
 namespace {
 
 enum { kVp8ErrorPropagationTh = 30 };
 enum { kVp832ByteAlign = 32 };
 
 // VP8 denoiser states.
 enum denoiserState {
@@ skipping 280 matching lines @@
 void VP8EncoderImpl::SetupTemporalLayers(int num_streams,
                                          int num_temporal_layers,
                                          const VideoCodec& codec) {
   TemporalLayersFactory default_factory;
   const TemporalLayersFactory* tl_factory = codec.codecSpecific.VP8.tl_factory;
   if (!tl_factory)
     tl_factory = &default_factory;
   if (num_streams == 1) {
     if (codec.mode == kScreensharing) {
       // Special mode when screensharing on a single stream.
-      temporal_layers_.push_back(
-          new ScreenshareLayers(num_temporal_layers, rand()));
+      temporal_layers_.push_back(new ScreenshareLayers(
+          num_temporal_layers, rand(), webrtc::Clock::GetRealTimeClock()));
     } else {
       temporal_layers_.push_back(
           tl_factory->Create(num_temporal_layers, rand()));
     }
   } else {
     for (int i = 0; i < num_streams; ++i) {
       // TODO(andresp): crash if layers is invalid.
       int layers = codec.simulcastStream[i].numberOfTemporalLayers;
       if (layers < 1)
         layers = 1;
@@ skipping 1059 matching lines @@
     return -1;
   }
   if (vpx_codec_control(copy->decoder_, VP8_SET_REFERENCE, ref_frame_) !=
       VPX_CODEC_OK) {
     return -1;
   }
   return 0;
 }
 
 }  // namespace webrtc