media/cast/sender/video_encoder_impl_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <vector>
   6
   7 #include "base/bind.h"
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "media/base/video_frame.h"
  11 #include "media/cast/cast_defines.h"
  12 #include "media/cast/cast_environment.h"
  13 #include "media/cast/sender/video_encoder_impl.h"
  14 #include "media/cast/test/fake_single_thread_task_runner.h"
  15 #include "media/cast/test/utility/video_utility.h"
  16 #include "testing/gmock/include/gmock/gmock.h"
  17
  18 namespace media {
  19 namespace cast {
  20
  21 using testing::_;
  22
  23 namespace {
  24 class TestVideoEncoderCallback
  25     : public base::RefCountedThreadSafe<TestVideoEncoderCallback> {
  26  public:
  27   TestVideoEncoderCallback() {}
  28
  29   void SetExpectedResult(uint32 expected_frame_id,
  30                          uint32 expected_last_referenced_frame_id,
  31                          const base::TimeTicks& expected_capture_time) {
  32     expected_frame_id_ = expected_frame_id;
  33     expected_last_referenced_frame_id_ = expected_last_referenced_frame_id;
  34     expected_capture_time_ = expected_capture_time;
  35   }
  36
  37   void DeliverEncodedVideoFrame(
  38       scoped_ptr<EncodedFrame> encoded_frame) {
  39     if (expected_frame_id_ == expected_last_referenced_frame_id_) {
  40       EXPECT_EQ(EncodedFrame::KEY, encoded_frame->dependency);
  41     } else {
  42       EXPECT_EQ(EncodedFrame::DEPENDENT,
  43                 encoded_frame->dependency);
  44     }
  45     EXPECT_EQ(expected_frame_id_, encoded_frame->frame_id);
  46     EXPECT_EQ(expected_last_referenced_frame_id_,
  47               encoded_frame->referenced_frame_id);
  48     EXPECT_EQ(expected_capture_time_, encoded_frame->reference_time);
  49   }
  50
  51  protected:
  52   virtual ~TestVideoEncoderCallback() {}
  53
  54  private:
  55   friend class base::RefCountedThreadSafe<TestVideoEncoderCallback>;
  56
  57   uint32 expected_frame_id_;
  58   uint32 expected_last_referenced_frame_id_;
  59   base::TimeTicks expected_capture_time_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(TestVideoEncoderCallback);
  62 };
  63 }  // namespace
  64
  65 class VideoEncoderImplTest : public ::testing::Test {
  66  protected:
  67   VideoEncoderImplTest()
  68       : test_video_encoder_callback_(new TestVideoEncoderCallback()) {
  69     video_config_.ssrc = 1;
  70     video_config_.incoming_feedback_ssrc = 2;
  71     video_config_.rtp_payload_type = 127;
  72     video_config_.use_external_encoder = false;
  73     video_config_.width = 320;
  74     video_config_.height = 240;
  75     video_config_.max_bitrate = 5000000;
  76     video_config_.min_bitrate = 1000000;
  77     video_config_.start_bitrate = 2000000;
  78     video_config_.max_qp = 56;
  79     video_config_.min_qp = 0;
  80     video_config_.max_frame_rate = 30;
  81     video_config_.max_number_of_video_buffers_used = 3;
  82     video_config_.codec = CODEC_VIDEO_VP8;
  83     gfx::Size size(video_config_.width, video_config_.height);
  84     video_frame_ = media::VideoFrame::CreateFrame(
  85         VideoFrame::I420, size, gfx::Rect(size), size, base::TimeDelta());
  86     PopulateVideoFrame(video_frame_.get(), 123);
  87   }
  88
  89   virtual ~VideoEncoderImplTest() {}
  90
  91   virtual void SetUp() OVERRIDE {
  92     testing_clock_ = new base::SimpleTestTickClock();
  93     task_runner_ = new test::FakeSingleThreadTaskRunner(testing_clock_);
  94     cast_environment_ =
  95         new CastEnvironment(scoped_ptr<base::TickClock>(testing_clock_).Pass(),
  96                             task_runner_,
  97                             task_runner_,
  98                             task_runner_);
  99   }
 100
 101   virtual void TearDown() OVERRIDE {
 102     video_encoder_.reset();
 103     task_runner_->RunTasks();
 104   }
 105
 106   void Configure(int max_unacked_frames) {
 107     video_encoder_.reset(new VideoEncoderImpl(
 108         cast_environment_, video_config_, max_unacked_frames));
 109   }
 110
 111   base::SimpleTestTickClock* testing_clock_;  // Owned by CastEnvironment.
 112   scoped_refptr<TestVideoEncoderCallback> test_video_encoder_callback_;
 113   VideoSenderConfig video_config_;
 114   scoped_refptr<test::FakeSingleThreadTaskRunner> task_runner_;
 115   scoped_ptr<VideoEncoder> video_encoder_;
 116   scoped_refptr<media::VideoFrame> video_frame_;
 117
 118   scoped_refptr<CastEnvironment> cast_environment_;
 119
 120   DISALLOW_COPY_AND_ASSIGN(VideoEncoderImplTest);
 121 };
 122
 123 TEST_F(VideoEncoderImplTest, EncodePattern30fpsRunningOutOfAck) {
 124   Configure(3);
 125
 126   VideoEncoder::FrameEncodedCallback frame_encoded_callback =
 127       base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
 128                  test_video_encoder_callback_.get());
 129
 130   base::TimeTicks capture_time;
 131   capture_time += base::TimeDelta::FromMilliseconds(33);
 132   test_video_encoder_callback_->SetExpectedResult(0, 0, capture_time);
 133   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 134       video_frame_, capture_time, frame_encoded_callback));
 135   task_runner_->RunTasks();
 136
 137   capture_time += base::TimeDelta::FromMilliseconds(33);
 138   video_encoder_->LatestFrameIdToReference(0);
 139   test_video_encoder_callback_->SetExpectedResult(1, 0, capture_time);
 140   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 141       video_frame_, capture_time, frame_encoded_callback));
 142   task_runner_->RunTasks();
 143
 144   capture_time += base::TimeDelta::FromMilliseconds(33);
 145   video_encoder_->LatestFrameIdToReference(1);
 146   test_video_encoder_callback_->SetExpectedResult(2, 1, capture_time);
 147   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 148       video_frame_, capture_time, frame_encoded_callback));
 149   task_runner_->RunTasks();
 150
 151   video_encoder_->LatestFrameIdToReference(2);
 152
 153   for (int i = 3; i < 6; ++i) {
 154     capture_time += base::TimeDelta::FromMilliseconds(33);
 155     test_video_encoder_callback_->SetExpectedResult(i, 2, capture_time);
 156     EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 157         video_frame_, capture_time, frame_encoded_callback));
 158     task_runner_->RunTasks();
 159   }
 160 }
 161
 162 // TODO(pwestin): Re-enabled after redesign the encoder to control number of
 163 // frames in flight.
 164 TEST_F(VideoEncoderImplTest, DISABLED_EncodePattern60fpsRunningOutOfAck) {
 165   video_config_.max_number_of_video_buffers_used = 1;
 166   Configure(6);
 167
 168   base::TimeTicks capture_time;
 169   VideoEncoder::FrameEncodedCallback frame_encoded_callback =
 170       base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
 171                  test_video_encoder_callback_.get());
 172
 173   capture_time += base::TimeDelta::FromMilliseconds(33);
 174   test_video_encoder_callback_->SetExpectedResult(0, 0, capture_time);
 175   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 176       video_frame_, capture_time, frame_encoded_callback));
 177   task_runner_->RunTasks();
 178
 179   video_encoder_->LatestFrameIdToReference(0);
 180   capture_time += base::TimeDelta::FromMilliseconds(33);
 181   test_video_encoder_callback_->SetExpectedResult(1, 0, capture_time);
 182   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 183       video_frame_, capture_time, frame_encoded_callback));
 184   task_runner_->RunTasks();
 185
 186   video_encoder_->LatestFrameIdToReference(1);
 187   capture_time += base::TimeDelta::FromMilliseconds(33);
 188   test_video_encoder_callback_->SetExpectedResult(2, 0, capture_time);
 189   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 190       video_frame_, capture_time, frame_encoded_callback));
 191   task_runner_->RunTasks();
 192
 193   video_encoder_->LatestFrameIdToReference(2);
 194
 195   for (int i = 3; i < 9; ++i) {
 196     capture_time += base::TimeDelta::FromMilliseconds(33);
 197     test_video_encoder_callback_->SetExpectedResult(i, 2, capture_time);
 198     EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 199         video_frame_, capture_time, frame_encoded_callback));
 200     task_runner_->RunTasks();
 201   }
 202 }
 203
 204 // TODO(pwestin): Re-enabled after redesign the encoder to control number of
 205 // frames in flight.
 206 TEST_F(VideoEncoderImplTest,
 207        DISABLED_EncodePattern60fps200msDelayRunningOutOfAck) {
 208   Configure(12);
 209
 210   base::TimeTicks capture_time;
 211   VideoEncoder::FrameEncodedCallback frame_encoded_callback =
 212       base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
 213                  test_video_encoder_callback_.get());
 214
 215   capture_time += base::TimeDelta::FromMilliseconds(33);
 216   test_video_encoder_callback_->SetExpectedResult(0, 0, capture_time);
 217   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 218       video_frame_, capture_time, frame_encoded_callback));
 219   task_runner_->RunTasks();
 220
 221   video_encoder_->LatestFrameIdToReference(0);
 222   capture_time += base::TimeDelta::FromMilliseconds(33);
 223   test_video_encoder_callback_->SetExpectedResult(1, 0, capture_time);
 224   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 225       video_frame_, capture_time, frame_encoded_callback));
 226   task_runner_->RunTasks();
 227
 228   video_encoder_->LatestFrameIdToReference(1);
 229   capture_time += base::TimeDelta::FromMilliseconds(33);
 230   test_video_encoder_callback_->SetExpectedResult(2, 0, capture_time);
 231   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 232       video_frame_, capture_time, frame_encoded_callback));
 233   task_runner_->RunTasks();
 234
 235   video_encoder_->LatestFrameIdToReference(2);
 236   capture_time += base::TimeDelta::FromMilliseconds(33);
 237   test_video_encoder_callback_->SetExpectedResult(3, 0, capture_time);
 238   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 239       video_frame_, capture_time, frame_encoded_callback));
 240   task_runner_->RunTasks();
 241
 242   video_encoder_->LatestFrameIdToReference(3);
 243   capture_time += base::TimeDelta::FromMilliseconds(33);
 244   test_video_encoder_callback_->SetExpectedResult(4, 0, capture_time);
 245   EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 246       video_frame_, capture_time, frame_encoded_callback));
 247   task_runner_->RunTasks();
 248
 249   video_encoder_->LatestFrameIdToReference(4);
 250
 251   for (int i = 5; i < 17; ++i) {
 252     test_video_encoder_callback_->SetExpectedResult(i, 4, capture_time);
 253     EXPECT_TRUE(video_encoder_->EncodeVideoFrame(
 254         video_frame_, capture_time, frame_encoded_callback));
 255     task_runner_->RunTasks();
 256   }
 257 }
 258
 259 }  // namespace cast
 260 }  // namespace media