Remove VoEVideoSync interface.

webrtc/voice_engine/test/auto_test/standard/video_sync_test.cc

-/*
- *  Copyright (c) 2012 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 <math.h>
-
-#include <numeric>
-#include <vector>
-
-#include "webrtc/voice_engine/test/auto_test/fixtures/after_streaming_fixture.h"
-
-#ifdef WEBRTC_IOS
-  const int kMinimumReasonableDelayEstimateMs = 30;
-#else
-  const int kMinimumReasonableDelayEstimateMs = 45;
-#endif  // !WEBRTC_IOS
-
-class VideoSyncTest : public AfterStreamingFixture {
- protected:
-  // This test will verify that delay estimates converge (e.g. the standard
-  // deviation for the last five seconds' estimates is less than 20) without
-  // manual observation. The test runs for 15 seconds, sampling once per second.
-  // All samples are checked so they are greater than |min_estimate|.
-  int CollectEstimatesDuring15Seconds(int min_estimate) {
-    Sleep(1000);
-
-    std::vector<int> all_delay_estimates;
-    for (int second = 0; second < 15; second++) {
-      int jitter_buffer_delay_ms = 0;
-      int playout_buffer_delay_ms = 0;
-      EXPECT_EQ(0, voe_vsync_->GetDelayEstimate(channel_,
-                                                &jitter_buffer_delay_ms,
-                                                &playout_buffer_delay_ms));
-
-      EXPECT_GT(jitter_buffer_delay_ms, min_estimate) <<
-          "The delay estimate can not conceivably get lower than " <<
-          min_estimate << " ms, it's unrealistic.";
-
-      all_delay_estimates.push_back(jitter_buffer_delay_ms);
-      Sleep(1000);
-    }
-
-    return ComputeStandardDeviation(
-        all_delay_estimates.begin() + 10, all_delay_estimates.end());
-  }
-
-  void CheckEstimatesConvergeReasonablyWell(int min_estimate) {
-    float standard_deviation = CollectEstimatesDuring15Seconds(min_estimate);
-    EXPECT_LT(standard_deviation, 30.0f);
-  }
-
-  // Computes the standard deviation by first estimating the sample variance
-  // with an unbiased estimator.
-  float ComputeStandardDeviation(std::vector<int>::const_iterator start,
-                               std::vector<int>::const_iterator end) const {
-    int num_elements = end - start;
-    int mean = std::accumulate(start, end, 0) / num_elements;
-    assert(num_elements > 1);
-
-    float variance = 0;
-    for (; start != end; ++start) {
-      variance += (*start - mean) * (*start - mean) / (num_elements - 1);
-    }
-    return sqrt(variance);
-  }
-};
-
-TEST_F(VideoSyncTest,
-       CanNotGetPlayoutTimestampWhilePlayingWithoutSettingItFirst) {
-  unsigned int ignored;
-  EXPECT_EQ(-1, voe_vsync_->GetPlayoutTimestamp(channel_, ignored));
-}
-
-TEST_F(VideoSyncTest, CannotSetInitTimestampWhilePlaying) {
-  EXPECT_EQ(-1, voe_vsync_->SetInitTimestamp(channel_, 12345));
-}
-
-TEST_F(VideoSyncTest, CannotSetInitSequenceNumberWhilePlaying) {
-  EXPECT_EQ(-1, voe_vsync_->SetInitSequenceNumber(channel_, 123));
-}
-
-TEST_F(VideoSyncTest, CanSetInitTimestampWhileStopped) {
-  EXPECT_EQ(0, voe_base_->StopSend(channel_));
-  EXPECT_EQ(0, voe_vsync_->SetInitTimestamp(channel_, 12345));
-}
-
-TEST_F(VideoSyncTest, CanSetInitSequenceNumberWhileStopped) {
-  EXPECT_EQ(0, voe_base_->StopSend(channel_));
-  EXPECT_EQ(0, voe_vsync_->SetInitSequenceNumber(channel_, 123));
-}
-
-// TODO(phoglund): pending investigation in
-// http://code.google.com/p/webrtc/issues/detail?id=438
-TEST_F(VideoSyncTest,
-       DISABLED_DelayEstimatesStabilizeDuring15sAndAreNotTooLow) {
-  EXPECT_EQ(0, voe_base_->StopSend(channel_));
-  EXPECT_EQ(0, voe_vsync_->SetInitTimestamp(channel_, 12345));
-  EXPECT_EQ(0, voe_vsync_->SetInitSequenceNumber(channel_, 123));
-  EXPECT_EQ(0, voe_base_->StartSend(channel_));
-
-  CheckEstimatesConvergeReasonablyWell(kMinimumReasonableDelayEstimateMs);
-}
-
-// TODO(phoglund): pending investigation in
-// http://code.google.com/p/webrtc/issues/detail?id=438
-TEST_F(VideoSyncTest,
-       DISABLED_DelayEstimatesStabilizeAfterNetEqMinDelayChanges45s) {
-  EXPECT_EQ(0, voe_base_->StopSend(channel_));
-  EXPECT_EQ(0, voe_vsync_->SetInitTimestamp(channel_, 12345));
-  EXPECT_EQ(0, voe_vsync_->SetInitSequenceNumber(channel_, 123));
-  EXPECT_EQ(0, voe_base_->StartSend(channel_));
-
-  CheckEstimatesConvergeReasonablyWell(kMinimumReasonableDelayEstimateMs);
-  EXPECT_EQ(0, voe_vsync_->SetMinimumPlayoutDelay(channel_, 200));
-  CheckEstimatesConvergeReasonablyWell(kMinimumReasonableDelayEstimateMs);
-  EXPECT_EQ(0, voe_vsync_->SetMinimumPlayoutDelay(channel_, 0));
-  CheckEstimatesConvergeReasonablyWell(kMinimumReasonableDelayEstimateMs);
-}
-
-TEST_F(VideoSyncTest, CanGetPlayoutBufferSize) {
-  int ignored;
-  EXPECT_EQ(0, voe_vsync_->GetPlayoutBufferSize(ignored));
-}