Reland #2 of Issue 2434073003: Extract bitrate allocation ...

webrtc/media/engine/videoencodersoftwarefallbackwrapper_unittest.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.
  */
 
 #include "webrtc/media/engine/videoencodersoftwarefallbackwrapper.h"
 
 #include <utility>
 
+#include "webrtc/base/checks.h"
+#include "webrtc/modules/video_coding/codecs/vp8/temporal_layers.h"
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
 #include "webrtc/modules/video_coding/include/video_error_codes.h"
+#include "webrtc/modules/video_coding/utility/simulcast_rate_allocator.h"
 #include "webrtc/test/gtest.h"
 
 namespace webrtc {
 
 const int kWidth = 320;
 const int kHeight = 240;
 const size_t kMaxPayloadSize = 800;
 
 class VideoEncoderSoftwareFallbackWrapperTest : public ::testing::Test {
  protected:
@@ skipping 31 matching lines @@
     int32_t Release() override {
       ++release_count_;
       return WEBRTC_VIDEO_CODEC_OK;
     }
 
     int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override {
       ++set_channel_parameters_count_;
       return WEBRTC_VIDEO_CODEC_OK;
     }
 
-    int32_t SetRates(uint32_t bitrate, uint32_t framerate) override {
+    int32_t SetRateAllocation(const BitrateAllocation& bitrate_allocation,
+                              uint32_t framerate) override {
       ++set_rates_count_;
       return WEBRTC_VIDEO_CODEC_OK;
     }
 
     void OnDroppedFrame() override { ++on_dropped_frame_count_; }
 
     bool SupportsNativeHandle() const override {
       ++supports_native_handle_count_;
       return false;
     }
@@ skipping 33 matching lines @@
   void EncodeFrame();
   void CheckLastEncoderName(const char* expected_name) {
     EXPECT_STREQ(expected_name, callback_.last_codec_name_.c_str());
   }
 
   FakeEncodedImageCallback callback_;
   CountingFakeEncoder fake_encoder_;
   VideoEncoderSoftwareFallbackWrapper fallback_wrapper_;
   VideoCodec codec_ = {};
   std::unique_ptr<VideoFrame> frame_;
+  std::unique_ptr<SimulcastRateAllocator> rate_allocator_;
 };
 
 void VideoEncoderSoftwareFallbackWrapperTest::EncodeFrame() {
   rtc::scoped_refptr<I420Buffer> buffer = I420Buffer::Create(
       kWidth, kHeight, kWidth, (kWidth + 1) / 2, (kWidth + 1) / 2);
   buffer->SetToBlack();
   std::vector<FrameType> types(1, kVideoFrameKey);
 
   frame_.reset(new VideoFrame(buffer, 0, 0, webrtc::kVideoRotation_0));
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
             fallback_wrapper_.Encode(*frame_, nullptr, &types));
 }
 
 void VideoEncoderSoftwareFallbackWrapperTest::UtilizeFallbackEncoder() {
   fallback_wrapper_.RegisterEncodeCompleteCallback(&callback_);
   EXPECT_EQ(&callback_, fake_encoder_.encode_complete_callback_);
 
   // Register with failing fake encoder. Should succeed with VP8 fallback.
   codec_.codecType = kVideoCodecVP8;
   codec_.maxFramerate = 30;
   codec_.width = kWidth;
   codec_.height = kHeight;
+  codec_.VP8()->numberOfTemporalLayers = 1;
+  std::unique_ptr<TemporalLayersFactory> tl_factory(
+      new TemporalLayersFactory());
+  codec_.VP8()->tl_factory = tl_factory.get();
+  rate_allocator_.reset(
+      new SimulcastRateAllocator(codec_, std::move(tl_factory)));
+
   fake_encoder_.init_encode_return_code_ = WEBRTC_VIDEO_CODEC_ERROR;
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
             fallback_wrapper_.InitEncode(&codec_, 2, kMaxPayloadSize));
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.SetRates(300, 30));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            fallback_wrapper_.SetRateAllocation(
+                rate_allocator_->GetAllocation(300000, 30), 30));
 
   int callback_count = callback_.callback_count_;
   int encode_count = fake_encoder_.encode_count_;
   EncodeFrame();
   EXPECT_EQ(encode_count, fake_encoder_.encode_count_);
   EXPECT_EQ(callback_count + 1, callback_.callback_count_);
 }
 
 void VideoEncoderSoftwareFallbackWrapperTest::FallbackFromEncodeRequest() {
   fallback_wrapper_.RegisterEncodeCompleteCallback(&callback_);
   codec_.codecType = kVideoCodecVP8;
   codec_.maxFramerate = 30;
   codec_.width = kWidth;
   codec_.height = kHeight;
+  codec_.VP8()->numberOfTemporalLayers = 1;
+  std::unique_ptr<TemporalLayersFactory> tl_factory(
+      new TemporalLayersFactory());
+  codec_.VP8()->tl_factory = tl_factory.get();
+  rate_allocator_.reset(
+      new SimulcastRateAllocator(codec_, std::move(tl_factory)));
   fallback_wrapper_.InitEncode(&codec_, 2, kMaxPayloadSize);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.SetRates(300, 30));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            fallback_wrapper_.SetRateAllocation(
+                rate_allocator_->GetAllocation(300000, 30), 30));
   EXPECT_EQ(1, fake_encoder_.init_encode_count_);
 
   // Have the non-fallback encoder request a software fallback.
   fake_encoder_.encode_return_code_ = WEBRTC_VIDEO_CODEC_FALLBACK_SOFTWARE;
   int callback_count = callback_.callback_count_;
   int encode_count = fake_encoder_.encode_count_;
   EncodeFrame();
   // Single encode request, which returned failure.
   EXPECT_EQ(encode_count + 1, fake_encoder_.encode_count_);
   EXPECT_EQ(callback_count + 1, callback_.callback_count_);
@@ skipping 62 matching lines @@
   EXPECT_EQ(0, fake_encoder_.set_channel_parameters_count_);
   fallback_wrapper_.SetChannelParameters(1, 1);
   EXPECT_EQ(1, fake_encoder_.set_channel_parameters_count_);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release());
 }
 
 TEST_F(VideoEncoderSoftwareFallbackWrapperTest,
        SetRatesForwardedDuringFallback) {
   UtilizeFallbackEncoder();
   EXPECT_EQ(1, fake_encoder_.set_rates_count_);
-  fallback_wrapper_.SetRates(1, 1);
+  fallback_wrapper_.SetRateAllocation(BitrateAllocation(), 1);
   EXPECT_EQ(2, fake_encoder_.set_rates_count_);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release());
 }
 
 TEST_F(VideoEncoderSoftwareFallbackWrapperTest,
        OnDroppedFrameForwardedWithoutFallback) {
   fallback_wrapper_.OnDroppedFrame();
   EXPECT_EQ(1, fake_encoder_.on_dropped_frame_count_);
 }
 
@@ skipping 29 matching lines @@
 
 TEST_F(VideoEncoderSoftwareFallbackWrapperTest,
        ReportsFallbackImplementationName) {
   UtilizeFallbackEncoder();
   // Hard coded expected value since libvpx is the software implementation name
   // for VP8. Change accordingly if the underlying implementation does.
   CheckLastEncoderName("libvpx");
 }
 
 }  // namespace webrtc