Remove all old suspension logic.

webrtc/modules/video_coding/media_optimization_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.
- */
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/modules/video_coding/media_optimization.h"
-#include "webrtc/system_wrappers/include/clock.h"
-
-namespace webrtc {
-namespace media_optimization {
-
-class TestMediaOptimization : public ::testing::Test {
- protected:
-  enum {
-    kSampleRate = 90000  // RTP timestamps per second.
-  };
-
-  // Note: simulated clock starts at 1 seconds, since parts of webrtc use 0 as
-  // a special case (e.g. frame rate in media optimization).
-  TestMediaOptimization()
-      : clock_(1000),
-        media_opt_(&clock_),
-        frame_time_ms_(33),
-        next_timestamp_(0) {}
-
-  // This method mimics what happens in VideoSender::AddVideoFrame.
-  void AddFrameAndAdvanceTime(uint32_t bitrate_bps, bool expect_frame_drop) {
-    bool frame_dropped = media_opt_.DropFrame();
-    EXPECT_EQ(expect_frame_drop, frame_dropped);
-    if (!frame_dropped) {
-      size_t bytes_per_frame = bitrate_bps * frame_time_ms_ / (8 * 1000);
-      EncodedImage encoded_image;
-      encoded_image._length = bytes_per_frame;
-      encoded_image._timeStamp = next_timestamp_;
-      encoded_image._frameType = kVideoFrameKey;
-      ASSERT_EQ(VCM_OK, media_opt_.UpdateWithEncodedData(encoded_image));
-    }
-    next_timestamp_ += frame_time_ms_ * kSampleRate / 1000;
-    clock_.AdvanceTimeMilliseconds(frame_time_ms_);
-  }
-
-  SimulatedClock clock_;
-  MediaOptimization media_opt_;
-  int frame_time_ms_;
-  uint32_t next_timestamp_;
-};
-
-TEST_F(TestMediaOptimization, VerifyMuting) {
-  // Enable video suspension with these limits.
-  // Suspend the video when the rate is below 50 kbps and resume when it gets
-  // above 50 + 10 kbps again.
-  const uint32_t kThresholdBps = 50000;
-  const uint32_t kWindowBps = 10000;
-  media_opt_.SuspendBelowMinBitrate(kThresholdBps, kWindowBps);
-
-  // The video should not be suspended from the start.
-  EXPECT_FALSE(media_opt_.IsVideoSuspended());
-
-  uint32_t target_bitrate_kbps = 100;
-  media_opt_.SetTargetRates(target_bitrate_kbps * 1000,
-                            0,     // Lossrate.
-                            100);  // RTT in ms.
-  media_opt_.EnableFrameDropper(true);
-  for (int time = 0; time < 2000; time += frame_time_ms_) {
-    ASSERT_NO_FATAL_FAILURE(AddFrameAndAdvanceTime(target_bitrate_kbps, false));
-  }
-
-  // Set the target rate below the limit for muting.
-  media_opt_.SetTargetRates(kThresholdBps - 1000,
-                            0,     // Lossrate.
-                            100);  // RTT in ms.
-  // Expect the muter to engage immediately and stay muted.
-  // Test during 2 seconds.
-  for (int time = 0; time < 2000; time += frame_time_ms_) {
-    EXPECT_TRUE(media_opt_.IsVideoSuspended());
-    ASSERT_NO_FATAL_FAILURE(AddFrameAndAdvanceTime(target_bitrate_kbps, true));
-  }
-
-  // Set the target above the limit for muting, but not above the
-  // limit + window.
-  media_opt_.SetTargetRates(kThresholdBps + 1000,
-                            0,     // Lossrate.
-                            100);  // RTT in ms.
-  // Expect the muter to stay muted.
-  // Test during 2 seconds.
-  for (int time = 0; time < 2000; time += frame_time_ms_) {
-    EXPECT_TRUE(media_opt_.IsVideoSuspended());
-    ASSERT_NO_FATAL_FAILURE(AddFrameAndAdvanceTime(target_bitrate_kbps, true));
-  }
-
-  // Set the target above limit + window.
-  media_opt_.SetTargetRates(kThresholdBps + kWindowBps + 1000,
-                            0,     // Lossrate.
-                            100);  // RTT in ms.
-  // Expect the muter to disengage immediately.
-  // Test during 2 seconds.
-  for (int time = 0; time < 2000; time += frame_time_ms_) {
-    EXPECT_FALSE(media_opt_.IsVideoSuspended());
-    ASSERT_NO_FATAL_FAILURE(
-        AddFrameAndAdvanceTime((kThresholdBps + kWindowBps) / 1000, false));
-  }
-}
-
-}  // namespace media_optimization
-}  // namespace webrtc