encoder_rtcp_feedback_unittest.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 "video/encoder_rtcp_feedback.h"

#include <memory>

#include "api/environment/environment_factory.h"

#include "test/gmock.h"

#include "test/gtest.h"

#include "video/test/mock_video_stream_encoder.h"

using ::testing::_;

using ::testing::ElementsAre;

namespace webrtc {

class VideoEncoderFeedbackKeyframeTestBase : public ::testing::Test {

 public:

  VideoEncoderFeedbackKeyframeTestBase(bool per_layer_pli_handling,

                                       std::vector<uint32_t> ssrcs)

      : simulated_clock_(123456789),

        encoder_(),

        encoder_rtcp_feedback_(CreateEnvironment(&simulated_clock_),

                               per_layer_pli_handling,

                               ssrcs,

                               &encoder_,

                               nullptr) {}

 protected:

  static const uint32_t kSsrc = 1234;

  static const uint32_t kOtherSsrc = 4321;

  SimulatedClock simulated_clock_;

  ::testing::StrictMock<MockVideoStreamEncoder> encoder_;

  EncoderRtcpFeedback encoder_rtcp_feedback_;

};

class VideoEncoderFeedbackKeyframeTest

    : public VideoEncoderFeedbackKeyframeTestBase {

 public:

  VideoEncoderFeedbackKeyframeTest()

      : VideoEncoderFeedbackKeyframeTestBase(

            /*per_layer_pli_handling=*/false,

            {VideoEncoderFeedbackKeyframeTestBase::kSsrc}) {}

};

TEST_F(VideoEncoderFeedbackKeyframeTest, CreateAndTriggerRequests) {

  EXPECT_CALL(encoder_, SendKeyFrame(_)).Times(1);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

TEST_F(VideoEncoderFeedbackKeyframeTest, TooManyOnReceivedIntraFrameRequest) {

  EXPECT_CALL(encoder_, SendKeyFrame(_)).Times(1);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  simulated_clock_.AdvanceTimeMilliseconds(10);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  EXPECT_CALL(encoder_, SendKeyFrame(_)).Times(1);

  simulated_clock_.AdvanceTimeMilliseconds(300);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

class VideoEncoderFeedbackKeyframePerLayerPliTest

    : public VideoEncoderFeedbackKeyframeTestBase {

 public:

  VideoEncoderFeedbackKeyframePerLayerPliTest()

      : VideoEncoderFeedbackKeyframeTestBase(

            /*per_layer_pli_handling=*/true,

            {VideoEncoderFeedbackKeyframeTestBase::kSsrc,

             VideoEncoderFeedbackKeyframeTestBase::kOtherSsrc}) {}

};

TEST_F(VideoEncoderFeedbackKeyframePerLayerPliTest, CreateAndTriggerRequests) {

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameKey,

                                       VideoFrameType::kVideoFrameDelta)))

      .Times(1);

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameDelta,

                                       VideoFrameType::kVideoFrameKey)))

      .Times(1);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

TEST_F(VideoEncoderFeedbackKeyframePerLayerPliTest,

       TooManyOnReceivedIntraFrameRequest) {

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameKey,

                                       VideoFrameType::kVideoFrameDelta)))

      .Times(1);

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameDelta,

                                       VideoFrameType::kVideoFrameKey)))

      .Times(1);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

  simulated_clock_.AdvanceTimeMilliseconds(10);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameKey,

                                       VideoFrameType::kVideoFrameDelta)))

      .Times(1);

  EXPECT_CALL(encoder_,

              SendKeyFrame(ElementsAre(VideoFrameType::kVideoFrameDelta,

                                       VideoFrameType::kVideoFrameKey)))

      .Times(1);

  simulated_clock_.AdvanceTimeMilliseconds(300);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

  encoder_rtcp_feedback_.OnReceivedIntraFrameRequest(kOtherSsrc);

}  // namespace webrtc