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

webrtc/video/video_send_stream_tests.cc

Index: webrtc/video/video_send_stream_tests.cc
diff --git a/webrtc/video/video_send_stream_tests.cc b/webrtc/video/video_send_stream_tests.cc
index f6112f9ed9ffeba2043a2c9cd1670323f63317b4..d84ae7353f347ef298b2f632b93bb5670b4dd90a 100644
--- a/webrtc/video/video_send_stream_tests.cc
+++ b/webrtc/video/video_send_stream_tests.cc
@@ -1327,7 +1327,8 @@ TEST_F(VideoSendStreamTest, ChangingTransportOverhead) {
     ChangingTransportOverheadTest()
         : EndToEndTest(test::CallTest::kDefaultTimeoutMs),
           call_(nullptr),
-          packets_sent_(0) {}
+          packets_sent_(0),
+          transport_overhead_(0) {}
 
     void OnCallsCreated(Call* sender_call, Call* receiver_call) override {
       call_ = sender_call;
@@ -1478,7 +1479,8 @@ TEST_F(VideoSendStreamTest,
           return;
         }
       }
-      init_encode_called_.Wait(VideoSendStreamTest::kDefaultTimeoutMs);
+      EXPECT_TRUE(
+          init_encode_called_.Wait(VideoSendStreamTest::kDefaultTimeoutMs));
       {
         rtc::CritScope lock(&crit_);
         EXPECT_EQ(width, last_initialized_frame_width_);
@@ -1494,9 +1496,7 @@ TEST_F(VideoSendStreamTest,
       last_initialized_frame_width_ = config->width;
       last_initialized_frame_height_ = config->height;
       ++number_of_initializations_;
-      // First time InitEncode is called, the frame size is unknown.
-      if (number_of_initializations_ > 1)
-        init_encode_called_.Set();
+      init_encode_called_.Set();
       return FakeEncoder::InitEncode(config, number_of_cores, max_payload_size);
     }
 
@@ -1615,41 +1615,50 @@ TEST_F(VideoSendStreamTest, VideoSendStreamStopSetEncoderRateToZero) {
     StartStopBitrateObserver()
         : FakeEncoder(Clock::GetRealTimeClock()),
           encoder_init_(false, false),
-          bitrate_changed_(false, false),
-          bitrate_kbps_(0) {}
+          bitrate_changed_(false, false) {}
     int32_t InitEncode(const VideoCodec* config,
                        int32_t number_of_cores,
                        size_t max_payload_size) override {
       rtc::CritScope lock(&crit_);
-      bitrate_kbps_ = config->startBitrate;
       encoder_init_.Set();
       return FakeEncoder::InitEncode(config, number_of_cores, max_payload_size);
     }
 
-    int32_t SetRates(uint32_t new_target_bitrate, uint32_t framerate) override {
+    int32_t SetRateAllocation(const BitrateAllocation& bitrate,
+                              uint32_t framerate) override {
       rtc::CritScope lock(&crit_);
-      bitrate_kbps_ = new_target_bitrate;
+      bitrate_kbps_ = rtc::Optional<int>(bitrate.get_sum_kbps());
       bitrate_changed_.Set();
-      return FakeEncoder::SetRates(new_target_bitrate, framerate);
-    }
-
-    int GetBitrateKbps() const {
-      rtc::CritScope lock(&crit_);
-      return bitrate_kbps_;
+      return FakeEncoder::SetRateAllocation(bitrate, framerate);
     }
 
     bool WaitForEncoderInit() {
       return encoder_init_.Wait(VideoSendStreamTest::kDefaultTimeoutMs);
     }
-    bool WaitBitrateChanged() {
-      return bitrate_changed_.Wait(VideoSendStreamTest::kDefaultTimeoutMs);
+
+    bool WaitBitrateChanged(bool non_zero) {
+      do {
+        rtc::Optional<int> bitrate_kbps;
+        {
+          rtc::CritScope lock(&crit_);
+          bitrate_kbps = bitrate_kbps_;
+        }
+        if (!bitrate_kbps)
+          continue;
+
+        if ((non_zero && *bitrate_kbps > 0) ||
+            (!non_zero && *bitrate_kbps == 0)) {
+          return true;
+        }
+      } while (bitrate_changed_.Wait(VideoSendStreamTest::kDefaultTimeoutMs));
+      return false;
     }
 
    private:
     rtc::CriticalSection crit_;
     rtc::Event encoder_init_;
     rtc::Event bitrate_changed_;
-    int bitrate_kbps_ GUARDED_BY(crit_);
+    rtc::Optional<int> bitrate_kbps_ GUARDED_BY(crit_);
   };
 
   CreateSenderCall(Call::Config(&event_log_));
@@ -1664,16 +1673,15 @@ TEST_F(VideoSendStreamTest, VideoSendStreamStopSetEncoderRateToZero) {
   CreateVideoStreams();
 
   EXPECT_TRUE(encoder.WaitForEncoderInit());
-  EXPECT_GT(encoder.GetBitrateKbps(), 0);
+
   video_send_stream_->Start();
-  EXPECT_TRUE(encoder.WaitBitrateChanged());
-  EXPECT_GT(encoder.GetBitrateKbps(), 0);
+  EXPECT_TRUE(encoder.WaitBitrateChanged(true));
+
   video_send_stream_->Stop();
-  EXPECT_TRUE(encoder.WaitBitrateChanged());
-  EXPECT_EQ(0, encoder.GetBitrateKbps());
+  EXPECT_TRUE(encoder.WaitBitrateChanged(false));
+
   video_send_stream_->Start();
-  EXPECT_TRUE(encoder.WaitBitrateChanged());
-  EXPECT_GT(encoder.GetBitrateKbps(), 0);
+  EXPECT_TRUE(encoder.WaitBitrateChanged(true));
 
   DestroyStreams();
 }
@@ -2085,10 +2093,12 @@ void VideoCodecConfigObserver<VideoCodecVP8>::VerifyCodecSpecifics(
   }
 
   // Set expected temporal layers as they should have been set when
-  // reconfiguring the encoder and not match the set config.
+  // reconfiguring the encoder and not match the set config. Also copy the
+  // TemporalLayersFactory pointer that has been injected by ViEEncoder.
   VideoCodecVP8 encoder_settings = encoder_settings_;
   encoder_settings.numberOfTemporalLayers =
       kVideoCodecConfigObserverNumberOfTemporalLayers;
+  encoder_settings.tl_factory = config.VP8().tl_factory;
   EXPECT_EQ(
       0, memcmp(&config.VP8(), &encoder_settings, sizeof(encoder_settings_)));
 }
@@ -2310,16 +2320,17 @@ TEST_F(VideoSendStreamTest, ReconfigureBitratesSetsEncoderBitratesCorrectly) {
                                      maxPayloadSize);
     }
 
-    int32_t SetRates(uint32_t newBitRate, uint32_t frameRate) override {
+    int32_t SetRateAllocation(const BitrateAllocation& bitrate,
+                              uint32_t frameRate) override {
       {
         rtc::CritScope lock(&crit_);
-        if (target_bitrate_ == newBitRate) {
-          return FakeEncoder::SetRates(newBitRate, frameRate);
+        if (target_bitrate_ == bitrate.get_sum_kbps()) {
+          return FakeEncoder::SetRateAllocation(bitrate, frameRate);
         }
-        target_bitrate_ = newBitRate;
+        target_bitrate_ = bitrate.get_sum_kbps();
       }
       bitrate_changed_event_.Set();
-      return FakeEncoder::SetRates(newBitRate, frameRate);
+      return FakeEncoder::SetRateAllocation(bitrate, frameRate);
     }
 
     void WaitForSetRates(uint32_t expected_bitrate) {