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| 1 /* | |
| 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 #include "webrtc/video/video_capture_input.h" | |
| 11 | |
| 12 #include <memory> | |
| 13 #include <vector> | |
| 14 | |
| 15 #include "testing/gtest/include/gtest/gtest.h" | |
| 16 #include "webrtc/base/event.h" | |
| 17 #include "webrtc/base/refcount.h" | |
| 18 #include "webrtc/test/fake_texture_frame.h" | |
| 19 #include "webrtc/test/frame_utils.h" | |
| 20 #include "webrtc/video/send_statistics_proxy.h" | |
| 21 | |
| 22 // If an output frame does not arrive in 500ms, the test will fail. | |
| 23 #define FRAME_TIMEOUT_MS 500 | |
| 24 | |
| 25 namespace webrtc { | |
| 26 | |
| 27 bool EqualFramesVector(const std::vector<std::unique_ptr<VideoFrame>>& frames1, | |
| 28 const std::vector<std::unique_ptr<VideoFrame>>& frames2); | |
| 29 std::unique_ptr<VideoFrame> CreateVideoFrame(uint8_t length); | |
| 30 | |
| 31 class VideoCaptureInputTest : public ::testing::Test { | |
| 32 protected: | |
| 33 VideoCaptureInputTest() | |
| 34 : stats_proxy_(Clock::GetRealTimeClock(), | |
| 35 webrtc::VideoSendStream::Config(nullptr), | |
| 36 webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo), | |
| 37 capture_event_(false, false) {} | |
| 38 | |
| 39 virtual void SetUp() { | |
| 40 overuse_detector_.reset( | |
| 41 new OveruseFrameDetector(Clock::GetRealTimeClock(), CpuOveruseOptions(), | |
| 42 nullptr, nullptr, &stats_proxy_)); | |
| 43 input_.reset(new internal::VideoCaptureInput( | |
| 44 &capture_event_, nullptr, &stats_proxy_, overuse_detector_.get())); | |
| 45 } | |
| 46 | |
| 47 void AddInputFrame(VideoFrame* frame) { | |
| 48 input_->IncomingCapturedFrame(*frame); | |
| 49 } | |
| 50 | |
| 51 void WaitOutputFrame() { | |
| 52 EXPECT_TRUE(capture_event_.Wait(FRAME_TIMEOUT_MS)); | |
| 53 VideoFrame frame; | |
| 54 EXPECT_TRUE(input_->GetVideoFrame(&frame)); | |
| 55 ASSERT_TRUE(frame.video_frame_buffer()); | |
| 56 if (!frame.video_frame_buffer()->native_handle()) { | |
| 57 output_frame_ybuffers_.push_back(frame.video_frame_buffer()->DataY()); | |
| 58 } | |
| 59 output_frames_.push_back( | |
| 60 std::unique_ptr<VideoFrame>(new VideoFrame(frame))); | |
| 61 } | |
| 62 | |
| 63 SendStatisticsProxy stats_proxy_; | |
| 64 | |
| 65 rtc::Event capture_event_; | |
| 66 | |
| 67 std::unique_ptr<OveruseFrameDetector> overuse_detector_; | |
| 68 | |
| 69 // Used to send input capture frames to VideoCaptureInput. | |
| 70 std::unique_ptr<internal::VideoCaptureInput> input_; | |
| 71 | |
| 72 // Input capture frames of VideoCaptureInput. | |
| 73 std::vector<std::unique_ptr<VideoFrame>> input_frames_; | |
| 74 | |
| 75 // Output delivered frames of VideoCaptureInput. | |
| 76 std::vector<std::unique_ptr<VideoFrame>> output_frames_; | |
| 77 | |
| 78 // The pointers of Y plane buffers of output frames. This is used to verify | |
| 79 // the frame are swapped and not copied. | |
| 80 std::vector<const uint8_t*> output_frame_ybuffers_; | |
| 81 }; | |
| 82 | |
| 83 TEST_F(VideoCaptureInputTest, DoesNotRetainHandleNorCopyBuffer) { | |
| 84 // Indicate an output frame has arrived. | |
| 85 rtc::Event frame_destroyed_event(false, false); | |
| 86 class TestBuffer : public webrtc::I420Buffer { | |
| 87 public: | |
| 88 explicit TestBuffer(rtc::Event* event) : I420Buffer(5, 5), event_(event) {} | |
| 89 | |
| 90 private: | |
| 91 friend class rtc::RefCountedObject<TestBuffer>; | |
| 92 ~TestBuffer() override { event_->Set(); } | |
| 93 rtc::Event* const event_; | |
| 94 }; | |
| 95 | |
| 96 { | |
| 97 VideoFrame frame( | |
| 98 new rtc::RefCountedObject<TestBuffer>(&frame_destroyed_event), 1, 1, | |
| 99 kVideoRotation_0); | |
| 100 | |
| 101 AddInputFrame(&frame); | |
| 102 WaitOutputFrame(); | |
| 103 | |
| 104 EXPECT_EQ(output_frames_[0]->video_frame_buffer().get(), | |
| 105 frame.video_frame_buffer().get()); | |
| 106 output_frames_.clear(); | |
| 107 } | |
| 108 EXPECT_TRUE(frame_destroyed_event.Wait(FRAME_TIMEOUT_MS)); | |
| 109 } | |
| 110 | |
| 111 TEST_F(VideoCaptureInputTest, TestNtpTimeStampSetIfRenderTimeSet) { | |
| 112 input_frames_.push_back(CreateVideoFrame(0)); | |
| 113 input_frames_[0]->set_render_time_ms(5); | |
| 114 input_frames_[0]->set_ntp_time_ms(0); | |
| 115 | |
| 116 AddInputFrame(input_frames_[0].get()); | |
| 117 WaitOutputFrame(); | |
| 118 EXPECT_GT(output_frames_[0]->ntp_time_ms(), | |
| 119 input_frames_[0]->render_time_ms()); | |
| 120 } | |
| 121 | |
| 122 TEST_F(VideoCaptureInputTest, TestRtpTimeStampSet) { | |
| 123 input_frames_.push_back(CreateVideoFrame(0)); | |
| 124 input_frames_[0]->set_render_time_ms(0); | |
| 125 input_frames_[0]->set_ntp_time_ms(1); | |
| 126 input_frames_[0]->set_timestamp(0); | |
| 127 | |
| 128 AddInputFrame(input_frames_[0].get()); | |
| 129 WaitOutputFrame(); | |
| 130 EXPECT_EQ(output_frames_[0]->timestamp(), | |
| 131 input_frames_[0]->ntp_time_ms() * 90); | |
| 132 } | |
| 133 | |
| 134 TEST_F(VideoCaptureInputTest, DropsFramesWithSameOrOldNtpTimestamp) { | |
| 135 input_frames_.push_back(CreateVideoFrame(0)); | |
| 136 | |
| 137 input_frames_[0]->set_ntp_time_ms(17); | |
| 138 AddInputFrame(input_frames_[0].get()); | |
| 139 WaitOutputFrame(); | |
| 140 EXPECT_EQ(output_frames_[0]->timestamp(), | |
| 141 input_frames_[0]->ntp_time_ms() * 90); | |
| 142 | |
| 143 // Repeat frame with the same NTP timestamp should drop. | |
| 144 AddInputFrame(input_frames_[0].get()); | |
| 145 EXPECT_FALSE(capture_event_.Wait(FRAME_TIMEOUT_MS)); | |
| 146 | |
| 147 // As should frames with a decreased NTP timestamp. | |
| 148 input_frames_[0]->set_ntp_time_ms(input_frames_[0]->ntp_time_ms() - 1); | |
| 149 AddInputFrame(input_frames_[0].get()); | |
| 150 EXPECT_FALSE(capture_event_.Wait(FRAME_TIMEOUT_MS)); | |
| 151 | |
| 152 // But delivering with an increased NTP timestamp should succeed. | |
| 153 input_frames_[0]->set_ntp_time_ms(4711); | |
| 154 AddInputFrame(input_frames_[0].get()); | |
| 155 WaitOutputFrame(); | |
| 156 EXPECT_EQ(output_frames_[1]->timestamp(), | |
| 157 input_frames_[0]->ntp_time_ms() * 90); | |
| 158 } | |
| 159 | |
| 160 TEST_F(VideoCaptureInputTest, TestTextureFrames) { | |
| 161 const int kNumFrame = 3; | |
| 162 for (int i = 0 ; i < kNumFrame; ++i) { | |
| 163 test::FakeNativeHandle* dummy_handle = new test::FakeNativeHandle(); | |
| 164 // Add one to |i| so that width/height > 0. | |
| 165 input_frames_.push_back(std::unique_ptr<VideoFrame>(new VideoFrame( | |
| 166 test::FakeNativeHandle::CreateFrame(dummy_handle, i + 1, i + 1, i + 1, | |
| 167 i + 1, webrtc::kVideoRotation_0)))); | |
| 168 AddInputFrame(input_frames_[i].get()); | |
| 169 WaitOutputFrame(); | |
| 170 ASSERT_TRUE(output_frames_[i]->video_frame_buffer()); | |
| 171 EXPECT_EQ(dummy_handle, | |
| 172 output_frames_[i]->video_frame_buffer()->native_handle()); | |
| 173 } | |
| 174 | |
| 175 EXPECT_TRUE(EqualFramesVector(input_frames_, output_frames_)); | |
| 176 } | |
| 177 | |
| 178 TEST_F(VideoCaptureInputTest, TestI420Frames) { | |
| 179 const int kNumFrame = 4; | |
| 180 std::vector<const uint8_t*> ybuffer_pointers; | |
| 181 for (int i = 0; i < kNumFrame; ++i) { | |
| 182 input_frames_.push_back(CreateVideoFrame(static_cast<uint8_t>(i + 1))); | |
| 183 ybuffer_pointers.push_back(input_frames_[i]->video_frame_buffer()->DataY()); | |
| 184 AddInputFrame(input_frames_[i].get()); | |
| 185 WaitOutputFrame(); | |
| 186 } | |
| 187 | |
| 188 EXPECT_TRUE(EqualFramesVector(input_frames_, output_frames_)); | |
| 189 // Make sure the buffer is not copied. | |
| 190 for (int i = 0; i < kNumFrame; ++i) | |
| 191 EXPECT_EQ(ybuffer_pointers[i], output_frame_ybuffers_[i]); | |
| 192 } | |
| 193 | |
| 194 TEST_F(VideoCaptureInputTest, TestI420FrameAfterTextureFrame) { | |
| 195 test::FakeNativeHandle* dummy_handle = new test::FakeNativeHandle(); | |
| 196 input_frames_.push_back(std::unique_ptr<VideoFrame>( | |
| 197 new VideoFrame(test::FakeNativeHandle::CreateFrame( | |
| 198 dummy_handle, 1, 1, 1, 1, webrtc::kVideoRotation_0)))); | |
| 199 AddInputFrame(input_frames_[0].get()); | |
| 200 WaitOutputFrame(); | |
| 201 ASSERT_TRUE(output_frames_[0]->video_frame_buffer()); | |
| 202 EXPECT_EQ(dummy_handle, | |
| 203 output_frames_[0]->video_frame_buffer()->native_handle()); | |
| 204 | |
| 205 input_frames_.push_back(CreateVideoFrame(2)); | |
| 206 AddInputFrame(input_frames_[1].get()); | |
| 207 WaitOutputFrame(); | |
| 208 | |
| 209 EXPECT_TRUE(EqualFramesVector(input_frames_, output_frames_)); | |
| 210 } | |
| 211 | |
| 212 TEST_F(VideoCaptureInputTest, TestTextureFrameAfterI420Frame) { | |
| 213 input_frames_.push_back(CreateVideoFrame(1)); | |
| 214 AddInputFrame(input_frames_[0].get()); | |
| 215 WaitOutputFrame(); | |
| 216 | |
| 217 test::FakeNativeHandle* dummy_handle = new test::FakeNativeHandle(); | |
| 218 input_frames_.push_back(std::unique_ptr<VideoFrame>( | |
| 219 new VideoFrame(test::FakeNativeHandle::CreateFrame( | |
| 220 dummy_handle, 1, 1, 2, 2, webrtc::kVideoRotation_0)))); | |
| 221 AddInputFrame(input_frames_[1].get()); | |
| 222 WaitOutputFrame(); | |
| 223 | |
| 224 EXPECT_TRUE(EqualFramesVector(input_frames_, output_frames_)); | |
| 225 } | |
| 226 | |
| 227 bool EqualFramesVector( | |
| 228 const std::vector<std::unique_ptr<VideoFrame>>& frames1, | |
| 229 const std::vector<std::unique_ptr<VideoFrame>>& frames2) { | |
| 230 if (frames1.size() != frames2.size()) | |
| 231 return false; | |
| 232 for (size_t i = 0; i < frames1.size(); ++i) { | |
| 233 // Compare frame buffers, since we don't care about differing timestamps. | |
| 234 if (!test::FrameBufsEqual(frames1[i]->video_frame_buffer(), | |
| 235 frames2[i]->video_frame_buffer())) { | |
| 236 return false; | |
| 237 } | |
| 238 } | |
| 239 return true; | |
| 240 } | |
| 241 | |
| 242 std::unique_ptr<VideoFrame> CreateVideoFrame(uint8_t data) { | |
| 243 std::unique_ptr<VideoFrame> frame(new VideoFrame()); | |
| 244 const int width = 36; | |
| 245 const int height = 24; | |
| 246 const int kSizeY = width * height * 2; | |
| 247 uint8_t buffer[kSizeY]; | |
| 248 memset(buffer, data, kSizeY); | |
| 249 frame->CreateFrame(buffer, buffer, buffer, width, height, width, width / 2, | |
| 250 width / 2, kVideoRotation_0); | |
| 251 frame->set_render_time_ms(data); | |
| 252 return frame; | |
| 253 } | |
| 254 | |
| 255 } // namespace webrtc | |
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