Periodically update channel parameters and send TargetBitrate message.

webrtc/modules/video_coding/video_sender_unittest.cc

 /*
  *  Copyright (c) 2013 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 298 matching lines @@
       new_bitrate_kbps * 1000, settings_.maxFramerate);
   EXPECT_CALL(encoder_,
               SetRateAllocation(new_rate_allocation, settings_.maxFramerate))
       .Times(1)
       .WillOnce(Return(0));
   sender_->SetChannelParameters(new_bitrate_kbps * 1000, 0, 200,
                                 rate_allocator_.get(), nullptr);
   AddFrame();
   clock_.AdvanceTimeMilliseconds(kFrameIntervalMs);
 
-  // Add enough frames so that input frame rate will be updated.
-  const int kFramesToSend =
-      (VCMProcessTimer::kDefaultProcessIntervalMs / kFrameIntervalMs) + 1;
-  for (int i = 0; i < kFramesToSend; ++i) {
-    AddFrame();
-    clock_.AdvanceTimeMilliseconds(kFrameIntervalMs);
-  }
-
-  EXPECT_CALL(encoder_,
-              SetRateAllocation(new_rate_allocation, kActualFrameRate))
-      .Times(1)
-      .WillOnce(Return(0));
-
-  sender_->Process();
-  AddFrame();
-
   // Expect no call to encoder_.SetRates if the new bitrate is zero.
   EXPECT_CALL(encoder_, SetRateAllocation(_, _)).Times(0);
   sender_->SetChannelParameters(0, 0, 200, rate_allocator_.get(), nullptr);
   AddFrame();
 }
 
 TEST_F(TestVideoSenderWithMockEncoder, TestIntraRequestsInternalCapture) {
   // De-register current external encoder.
   sender_->RegisterExternalEncoder(nullptr, kUnusedPayloadType, false);
   // Register encoder with internal capture.
@@ skipping 23 matching lines @@
   const uint32_t new_bitrate_kbps = settings_.startBitrate + 300;
   BitrateAllocation new_rate_allocation = rate_allocator_->GetAllocation(
       new_bitrate_kbps * 1000, settings_.maxFramerate);
   EXPECT_CALL(encoder_, SetRateAllocation(new_rate_allocation, _))
       .Times(1)
       .WillOnce(Return(0));
   sender_->SetChannelParameters(new_bitrate_kbps * 1000, 0, 200,
                                 rate_allocator_.get(), nullptr);
 }
 
-TEST_F(TestVideoSenderWithMockEncoder, EncoderFramerateUpdatedViaProcess) {
-  sender_->SetChannelParameters(settings_.startBitrate * 1000, 0, 200,
-                                rate_allocator_.get(), nullptr);
-  const int64_t kRateStatsWindowMs = 2000;
-  const uint32_t kInputFps = 20;
-  int64_t start_time = clock_.TimeInMilliseconds();
-  while (clock_.TimeInMilliseconds() < start_time + kRateStatsWindowMs) {
-    AddFrame();
-    clock_.AdvanceTimeMilliseconds(1000 / kInputFps);
-  }
-  EXPECT_CALL(encoder_, SetRateAllocation(_, kInputFps))
-      .Times(1)
-      .WillOnce(Return(0));
-  sender_->Process();
-  AddFrame();
-}
-
 TEST_F(TestVideoSenderWithMockEncoder,
        NoRedundantSetChannelParameterOrSetRatesCalls) {
   const uint8_t kLossRate = 4;
   const uint8_t kRtt = 200;
   const int64_t kRateStatsWindowMs = 2000;
   const uint32_t kInputFps = 20;
   int64_t start_time = clock_.TimeInMilliseconds();
   // Expect initial call to SetChannelParameters. Rates are initialized through
   // InitEncode and expects no additional call before the framerate (or bitrate)
   // updates.
   EXPECT_CALL(encoder_, SetChannelParameters(kLossRate, kRtt))
       .Times(1)
       .WillOnce(Return(0));
   sender_->SetChannelParameters(settings_.startBitrate * 1000, kLossRate, kRtt,
                                 rate_allocator_.get(), nullptr);
   while (clock_.TimeInMilliseconds() < start_time + kRateStatsWindowMs) {
     AddFrame();
     clock_.AdvanceTimeMilliseconds(1000 / kInputFps);
   }
-  // After process, input framerate should be updated but not ChannelParameters
-  // as they are the same as before.
-  EXPECT_CALL(encoder_, SetRateAllocation(_, kInputFps))
-      .Times(1)
-      .WillOnce(Return(0));
-  sender_->Process();
-  AddFrame();
+
   // Call to SetChannelParameters with changed bitrate should call encoder
   // SetRates but not encoder SetChannelParameters (that are unchanged).
   uint32_t new_bitrate_bps = 2 * settings_.startBitrate * 1000;
   BitrateAllocation new_rate_allocation =
       rate_allocator_->GetAllocation(new_bitrate_bps, kInputFps);
   EXPECT_CALL(encoder_, SetRateAllocation(new_rate_allocation, kInputFps))
       .Times(1)
       .WillOnce(Return(0));
   sender_->SetChannelParameters(new_bitrate_bps, kLossRate, kRtt,
                                 rate_allocator_.get(), nullptr);
@@ skipping 136 matching lines @@
   }
   {
     // TODO(andresp): Find out why this fails with framerate = 7.5
     Vp8StreamInfo expected = {{7.0, 7.0, 7.0}, {high_b, high_b, high_b}};
     EXPECT_THAT(SimulateWithFramerate(7.0), MatchesVp8StreamInfo(expected));
   }
 }
 }  // namespace
 }  // namespace vcm
 }  // namespace webrtc