Let ViEEncoder express resolution requests as Sinkwants

webrtc/media/engine/fakewebrtccall.cc

 /*
  *  Copyright (c) 2015 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 86 matching lines @@
 void FakeAudioReceiveStream::SetGain(float gain) {
   gain_ = gain;
 }
 
 FakeVideoSendStream::FakeVideoSendStream(
     webrtc::VideoSendStream::Config config,
     webrtc::VideoEncoderConfig encoder_config)
     : sending_(false),
       config_(std::move(config)),
       codec_settings_set_(false),
+      resolution_scaling_enabled_(false),
       source_(nullptr),
       num_swapped_frames_(0) {
   RTC_DCHECK(config.encoder_settings.encoder != NULL);
   ReconfigureVideoEncoder(std::move(encoder_config));
 }
 
 FakeVideoSendStream::~FakeVideoSendStream() {
   if (source_)
     source_->RemoveSink(this);
 }
@@ skipping 109 matching lines @@
 
 void FakeVideoSendStream::Start() {
   sending_ = true;
 }
 
 void FakeVideoSendStream::Stop() {
   sending_ = false;
 }
 
 void FakeVideoSendStream::SetSource(
-    rtc::VideoSourceInterface<webrtc::VideoFrame>* source) {
+    rtc::VideoSourceInterface<webrtc::VideoFrame>* source,
+    const webrtc::VideoSendStream::DegradationPreference&
+        degradation_preference) {
   RTC_DCHECK(source != source_);
   if (source_)
     source_->RemoveSink(this);
   source_ = source;
+  resolution_scaling_enabled_ =
+      degradation_preference !=
+      webrtc::VideoSendStream::DegradationPreference::kMaintainResolution;
   if (source)
-    source->AddOrUpdateSink(this, rtc::VideoSinkWants());
+    source->AddOrUpdateSink(this, resolution_scaling_enabled_
+                                      ? sink_wants_
+                                      : rtc::VideoSinkWants());
+}
+
+void FakeVideoSendStream::InjectVideoSinkWants(
+    const rtc::VideoSinkWants& wants) {
+  sink_wants_ = wants;
+  source_->AddOrUpdateSink(this, wants);
 }
 
 FakeVideoReceiveStream::FakeVideoReceiveStream(
     webrtc::VideoReceiveStream::Config config)
     : config_(std::move(config)), receiving_(false) {}
 
 const webrtc::VideoReceiveStream::Config& FakeVideoReceiveStream::GetConfig() {
   return config_;
 }
 
@@ skipping 262 matching lines @@
 }
 
 void FakeCall::OnSentPacket(const rtc::SentPacket& sent_packet) {
   last_sent_packet_ = sent_packet;
   if (sent_packet.packet_id >= 0) {
     last_sent_nonnegative_packet_id_ = sent_packet.packet_id;
   }
 }
 
 }  // namespace cricket