/* * Copyright (c) 2010 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 #include #include #include "absl/memory/memory.h" #include "api/video/video_frame.h" #include "media/base/fake_frame_source.h" #include "media/base/video_adapter.h" #include "rtc_base/time_utils.h" #include "test/gtest.h" namespace cricket { namespace { const int kWidth = 1280; const int kHeight = 720; const int kDefaultFps = 30; } // namespace class VideoAdapterTest : public ::testing::Test, public ::testing::WithParamInterface { public: VideoAdapterTest() : frame_source_(absl::make_unique( kWidth, kHeight, VideoFormat::FpsToInterval(kDefaultFps) / rtc::kNumNanosecsPerMicrosec)), adapter_wrapper_(absl::make_unique(&adapter_)), use_new_format_request_(GetParam()) {} protected: // Wrap a VideoAdapter and collect stats. class VideoAdapterWrapper { public: struct Stats { int captured_frames = 0; int dropped_frames = 0; bool last_adapt_was_no_op = false; int cropped_width = 0; int cropped_height = 0; int out_width = 0; int out_height = 0; }; explicit VideoAdapterWrapper(VideoAdapter* adapter) : video_adapter_(adapter) {} void AdaptFrame(const webrtc::VideoFrame& frame) { const int in_width = frame.width(); const int in_height = frame.height(); int cropped_width; int cropped_height; int out_width; int out_height; if (video_adapter_->AdaptFrameResolution( in_width, in_height, frame.timestamp_us() * rtc::kNumNanosecsPerMicrosec, &cropped_width, &cropped_height, &out_width, &out_height)) { stats_.cropped_width = cropped_width; stats_.cropped_height = cropped_height; stats_.out_width = out_width; stats_.out_height = out_height; stats_.last_adapt_was_no_op = (in_width == cropped_width && in_height == cropped_height && in_width == out_width && in_height == out_height); } else { ++stats_.dropped_frames; } ++stats_.captured_frames; } Stats GetStats() const { return stats_; } private: VideoAdapter* video_adapter_; Stats stats_; }; void VerifyAdaptedResolution(const VideoAdapterWrapper::Stats& stats, int cropped_width, int cropped_height, int out_width, int out_height) { EXPECT_EQ(cropped_width, stats.cropped_width); EXPECT_EQ(cropped_height, stats.cropped_height); EXPECT_EQ(out_width, stats.out_width); EXPECT_EQ(out_height, stats.out_height); } void OnOutputFormatRequest(int width, int height, const absl::optional& fps) { if (use_new_format_request_) { absl::optional> target_aspect_ratio = std::make_pair(width, height); absl::optional max_pixel_count = width * height; absl::optional max_fps = fps; adapter_.OnOutputFormatRequest(target_aspect_ratio, max_pixel_count, max_fps); return; } adapter_.OnOutputFormatRequest( VideoFormat(width, height, fps ? VideoFormat::FpsToInterval(*fps) : 0, cricket::FOURCC_I420)); } const std::unique_ptr frame_source_; VideoAdapter adapter_; int cropped_width_; int cropped_height_; int out_width_; int out_height_; const std::unique_ptr adapter_wrapper_; const bool use_new_format_request_; }; INSTANTIATE_TEST_SUITE_P(OnOutputFormatRequests, VideoAdapterTest, ::testing::Values(true, false)); // Do not adapt the frame rate or the resolution. Expect no frame drop, no // cropping, and no resolution change. TEST_P(VideoAdapterTest, AdaptNothing) { for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop and no resolution change. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 10); EXPECT_EQ(0, stats.dropped_frames); VerifyAdaptedResolution(stats, kWidth, kHeight, kWidth, kHeight); EXPECT_TRUE(stats.last_adapt_was_no_op); } TEST_P(VideoAdapterTest, AdaptZeroInterval) { OnOutputFormatRequest(kWidth, kHeight, absl::nullopt); for (int i = 0; i < 40; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no crash and that frames aren't dropped. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 40); EXPECT_EQ(0, stats.dropped_frames); VerifyAdaptedResolution(stats, kWidth, kHeight, kWidth, kHeight); } // Adapt the frame rate to be half of the capture rate at the beginning. Expect // the number of dropped frames to be half of the number the captured frames. TEST_P(VideoAdapterTest, AdaptFramerateToHalf) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps / 2); // Capture 10 frames and verify that every other frame is dropped. The first // frame should not be dropped. adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 1); EXPECT_EQ(0, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 2); EXPECT_EQ(1, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 3); EXPECT_EQ(1, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 4); EXPECT_EQ(2, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 5); EXPECT_EQ(2, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 6); EXPECT_EQ(3, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 7); EXPECT_EQ(3, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 8); EXPECT_EQ(4, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 9); EXPECT_EQ(4, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 10); EXPECT_EQ(5, adapter_wrapper_->GetStats().dropped_frames); } // Adapt the frame rate to be two thirds of the capture rate at the beginning. // Expect the number of dropped frames to be one thirds of the number the // captured frames. TEST_P(VideoAdapterTest, AdaptFramerateToTwoThirds) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps * 2 / 3); // Capture 10 frames and verify that every third frame is dropped. The first // frame should not be dropped. adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 1); EXPECT_EQ(0, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 2); EXPECT_EQ(0, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 3); EXPECT_EQ(1, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 4); EXPECT_EQ(1, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 5); EXPECT_EQ(1, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 6); EXPECT_EQ(2, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 7); EXPECT_EQ(2, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 8); EXPECT_EQ(2, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 9); EXPECT_EQ(3, adapter_wrapper_->GetStats().dropped_frames); adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, 10); EXPECT_EQ(3, adapter_wrapper_->GetStats().dropped_frames); } // Request frame rate twice as high as captured frame rate. Expect no frame // drop. TEST_P(VideoAdapterTest, AdaptFramerateHighLimit) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps * 2); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop. EXPECT_EQ(0, adapter_wrapper_->GetStats().dropped_frames); } // Adapt the frame rate to be half of the capture rate. No resolution limit set. // Expect the number of dropped frames to be half of the number the captured // frames. TEST_P(VideoAdapterTest, AdaptFramerateToHalfWithNoPixelLimit) { adapter_.OnOutputFormatRequest(absl::nullopt, absl::nullopt, kDefaultFps / 2); // Capture 10 frames and verify that every other frame is dropped. The first // frame should not be dropped. int expected_dropped_frames = 0; for (int i = 0; i < 10; ++i) { adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); EXPECT_GE(adapter_wrapper_->GetStats().captured_frames, i + 1); if (i % 2 == 1) ++expected_dropped_frames; EXPECT_EQ(expected_dropped_frames, adapter_wrapper_->GetStats().dropped_frames); VerifyAdaptedResolution(adapter_wrapper_->GetStats(), kWidth, kHeight, kWidth, kHeight); } } // After the first timestamp, add a big offset to the timestamps. Expect that // the adapter is conservative and resets to the new offset and does not drop // any frame. TEST_P(VideoAdapterTest, AdaptFramerateTimestampOffset) { const int64_t capture_interval = VideoFormat::FpsToInterval(kDefaultFps); OnOutputFormatRequest(640, 480, kDefaultFps); const int64_t first_timestamp = 0; adapter_.AdaptFrameResolution(640, 480, first_timestamp, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); const int64_t big_offset = -987654321LL * 1000; const int64_t second_timestamp = big_offset; adapter_.AdaptFrameResolution(640, 480, second_timestamp, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); const int64_t third_timestamp = big_offset + capture_interval; adapter_.AdaptFrameResolution(640, 480, third_timestamp, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); } // Request 30 fps and send 30 fps with jitter. Expect that no frame is dropped. TEST_P(VideoAdapterTest, AdaptFramerateTimestampJitter) { const int64_t capture_interval = VideoFormat::FpsToInterval(kDefaultFps); OnOutputFormatRequest(640, 480, kDefaultFps); adapter_.AdaptFrameResolution(640, 480, capture_interval * 0 / 10, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); adapter_.AdaptFrameResolution(640, 480, capture_interval * 10 / 10 - 1, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); adapter_.AdaptFrameResolution(640, 480, capture_interval * 25 / 10, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); adapter_.AdaptFrameResolution(640, 480, capture_interval * 30 / 10, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); adapter_.AdaptFrameResolution(640, 480, capture_interval * 35 / 10, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); adapter_.AdaptFrameResolution(640, 480, capture_interval * 50 / 10, &cropped_width_, &cropped_height_, &out_width_, &out_height_); EXPECT_GT(out_width_, 0); EXPECT_GT(out_height_, 0); } // Adapt the frame rate to be half of the capture rate after capturing no less // than 10 frames. Expect no frame dropped before adaptation and frame dropped // after adaptation. TEST_P(VideoAdapterTest, AdaptFramerateOntheFly) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop before adaptation. EXPECT_EQ(0, adapter_wrapper_->GetStats().dropped_frames); // Adapt the frame rate. OnOutputFormatRequest(kWidth, kHeight, kDefaultFps / 2); for (int i = 0; i < 20; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify frame drop after adaptation. EXPECT_GT(adapter_wrapper_->GetStats().dropped_frames, 0); } // Do not adapt the frame rate or the resolution. Expect no frame drop, no // cropping, and no resolution change. TEST_P(VideoAdapterTest, AdaptFramerateRequestMax) { adapter_.OnResolutionFramerateRequest(absl::nullopt, std::numeric_limits::max(), std::numeric_limits::max()); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop and no resolution change. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 10); EXPECT_EQ(0, stats.dropped_frames); VerifyAdaptedResolution(stats, kWidth, kHeight, kWidth, kHeight); EXPECT_TRUE(stats.last_adapt_was_no_op); } TEST_P(VideoAdapterTest, AdaptFramerateRequestZero) { adapter_.OnResolutionFramerateRequest(absl::nullopt, std::numeric_limits::max(), 0); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no crash and that frames aren't dropped. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 10); EXPECT_EQ(10, stats.dropped_frames); } // Adapt the frame rate to be half of the capture rate at the beginning. Expect // the number of dropped frames to be half of the number the captured frames. TEST_P(VideoAdapterTest, AdaptFramerateRequestHalf) { adapter_.OnResolutionFramerateRequest( absl::nullopt, std::numeric_limits::max(), kDefaultFps / 2); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no crash and that frames aren't dropped. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 10); EXPECT_EQ(5, stats.dropped_frames); VerifyAdaptedResolution(stats, kWidth, kHeight, kWidth, kHeight); } // Set a very high output pixel resolution. Expect no cropping or resolution // change. TEST_P(VideoAdapterTest, AdaptFrameResolutionHighLimit) { OnOutputFormatRequest(kWidth * 10, kHeight * 10, kDefaultFps); EXPECT_TRUE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(kWidth, cropped_width_); EXPECT_EQ(kHeight, cropped_height_); EXPECT_EQ(kWidth, out_width_); EXPECT_EQ(kHeight, out_height_); } // Adapt the frame resolution to be the same as capture resolution. Expect no // cropping or resolution change. TEST_P(VideoAdapterTest, AdaptFrameResolutionIdentical) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps); EXPECT_TRUE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(kWidth, cropped_width_); EXPECT_EQ(kHeight, cropped_height_); EXPECT_EQ(kWidth, out_width_); EXPECT_EQ(kHeight, out_height_); } // Adapt the frame resolution to be a quarter of the capture resolution. Expect // no cropping, but a resolution change. TEST_P(VideoAdapterTest, AdaptFrameResolutionQuarter) { OnOutputFormatRequest(kWidth / 2, kHeight / 2, kDefaultFps); EXPECT_TRUE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(kWidth, cropped_width_); EXPECT_EQ(kHeight, cropped_height_); EXPECT_EQ(kWidth / 2, out_width_); EXPECT_EQ(kHeight / 2, out_height_); } // Adapt the pixel resolution to 0. Expect frame drop. TEST_P(VideoAdapterTest, AdaptFrameResolutionDrop) { OnOutputFormatRequest(kWidth * 0, kHeight * 0, kDefaultFps); EXPECT_FALSE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); } // Adapt the frame resolution to be a quarter of the capture resolution at the // beginning. Expect no cropping but a resolution change. TEST_P(VideoAdapterTest, AdaptResolution) { OnOutputFormatRequest(kWidth / 2, kHeight / 2, kDefaultFps); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop, no cropping, and resolution change. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_EQ(0, stats.dropped_frames); VerifyAdaptedResolution(stats, kWidth, kHeight, kWidth / 2, kHeight / 2); } // Adapt the frame resolution to be a quarter of the capture resolution after // capturing no less than 10 frames. Expect no resolution change before // adaptation and resolution change after adaptation. TEST_P(VideoAdapterTest, AdaptResolutionOnTheFly) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no resolution change before adaptation. VerifyAdaptedResolution(adapter_wrapper_->GetStats(), kWidth, kHeight, kWidth, kHeight); // Adapt the frame resolution. OnOutputFormatRequest(kWidth / 2, kHeight / 2, kDefaultFps); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify resolution change after adaptation. VerifyAdaptedResolution(adapter_wrapper_->GetStats(), kWidth, kHeight, kWidth / 2, kHeight / 2); } // Drop all frames for resolution 0x0. TEST_P(VideoAdapterTest, DropAllFrames) { OnOutputFormatRequest(kWidth * 0, kHeight * 0, kDefaultFps); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify all frames are dropped. VideoAdapterWrapper::Stats stats = adapter_wrapper_->GetStats(); EXPECT_GE(stats.captured_frames, 10); EXPECT_EQ(stats.captured_frames, stats.dropped_frames); } TEST_P(VideoAdapterTest, TestOnOutputFormatRequest) { EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(400, out_height_); // Format request 640x400. OnOutputFormatRequest(640, 400, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(400, out_height_); // Request 1280x720, higher than input, but aspect 16:9. Expect cropping but // no scaling. OnOutputFormatRequest(1280, 720, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Request 0x0. OnOutputFormatRequest(0, 0, absl::nullopt); EXPECT_FALSE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); // Request 320x200. Expect scaling, but no cropping. OnOutputFormatRequest(320, 200, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(320, out_width_); EXPECT_EQ(200, out_height_); // Request resolution close to 2/3 scale. Expect adapt down. Scaling to 2/3 // is not optimized and not allowed, therefore 1/2 scaling will be used // instead. OnOutputFormatRequest(424, 265, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(320, out_width_); EXPECT_EQ(200, out_height_); // Request resolution of 3 / 8. Expect adapt down. OnOutputFormatRequest(640 * 3 / 8, 400 * 3 / 8, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(640 * 3 / 8, out_width_); EXPECT_EQ(400 * 3 / 8, out_height_); // Switch back up. Expect adapt. OnOutputFormatRequest(320, 200, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(320, out_width_); EXPECT_EQ(200, out_height_); // Format request 480x300. OnOutputFormatRequest(480, 300, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(300, out_height_); } TEST_P(VideoAdapterTest, TestViewRequestPlusCameraSwitch) { // Start at HD. EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); // Format request for VGA. OnOutputFormatRequest(640, 360, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Now, the camera reopens at VGA. // Both the frame and the output format should be 640x360. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // And another view request comes in for 640x360, which should have no // real impact. OnOutputFormatRequest(640, 360, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, TestVgaWidth) { // Reqeuested Output format is 640x360. OnOutputFormatRequest(640, 360, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); // Expect cropping. EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // But if frames come in at 640x360, we shouldn't adapt them down. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, TestOnResolutionRequestInSmallSteps) { EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); // Adapt down one step. adapter_.OnResolutionFramerateRequest(absl::nullopt, 1280 * 720 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(960, out_width_); EXPECT_EQ(540, out_height_); // Adapt down one step more. adapter_.OnResolutionFramerateRequest(absl::nullopt, 960 * 540 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Adapt down one step more. adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); // Adapt up one step. adapter_.OnResolutionFramerateRequest(640 * 360, 960 * 540, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Adapt up one step more. adapter_.OnResolutionFramerateRequest(960 * 540, 1280 * 720, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(960, out_width_); EXPECT_EQ(540, out_height_); // Adapt up one step more. adapter_.OnResolutionFramerateRequest(1280 * 720, 1920 * 1080, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); } TEST_P(VideoAdapterTest, TestOnResolutionRequestMaxZero) { EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); adapter_.OnResolutionFramerateRequest(absl::nullopt, 0, std::numeric_limits::max()); EXPECT_FALSE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); } TEST_P(VideoAdapterTest, TestOnResolutionRequestInLargeSteps) { // Large step down. adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); // Large step up. adapter_.OnResolutionFramerateRequest(1280 * 720, 1920 * 1080, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); } TEST_P(VideoAdapterTest, TestOnOutputFormatRequestCapsMaxResolution) { adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); OnOutputFormatRequest(640, 360, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); adapter_.OnResolutionFramerateRequest(absl::nullopt, 960 * 720, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, TestOnResolutionRequestReset) { EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 - 1, std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); adapter_.OnResolutionFramerateRequest(absl::nullopt, std::numeric_limits::max(), std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); } TEST_P(VideoAdapterTest, TestOnOutputFormatRequestResolutionReset) { EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); adapter_.OnOutputFormatRequest(absl::nullopt, 640 * 360 - 1, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); adapter_.OnOutputFormatRequest(absl::nullopt, absl::nullopt, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(1280, cropped_width_); EXPECT_EQ(720, cropped_height_); EXPECT_EQ(1280, out_width_); EXPECT_EQ(720, out_height_); } TEST_P(VideoAdapterTest, TestOnOutputFormatRequestFpsReset) { OnOutputFormatRequest(kWidth, kHeight, kDefaultFps / 2); for (int i = 0; i < 10; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify frame drop. const int dropped_frames = adapter_wrapper_->GetStats().dropped_frames; EXPECT_GT(dropped_frames, 0); // Reset frame rate. OnOutputFormatRequest(kWidth, kHeight, absl::nullopt); for (int i = 0; i < 20; ++i) adapter_wrapper_->AdaptFrame(frame_source_->GetFrame()); // Verify no frame drop after reset. EXPECT_EQ(dropped_frames, adapter_wrapper_->GetStats().dropped_frames); } TEST_P(VideoAdapterTest, RequestAspectRatio) { // Request aspect ratio 320/180 (16:9), smaller than input, but no resolution // limit. Expect cropping but no scaling. adapter_.OnOutputFormatRequest(std::make_pair(320, 180), absl::nullopt, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, RequestAspectRatioWithDifferentOrientation) { // Request 720x1280, higher than input, but aspect 16:9. Orientation should // not matter, expect cropping but no scaling. OnOutputFormatRequest(720, 1280, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, InvalidAspectRatioIgnored) { // Request aspect ratio 320/0. Expect no cropping. adapter_.OnOutputFormatRequest(std::make_pair(320, 0), absl::nullopt, absl::nullopt); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(400, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(400, out_height_); } TEST_P(VideoAdapterTest, TestCroppingWithResolutionRequest) { // Ask for 640x360 (16:9 aspect). OnOutputFormatRequest(640, 360, absl::nullopt); // Send 640x480 (4:3 aspect). EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); // Expect cropping to 16:9 format and no scaling. EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Adapt down one step. adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 - 1, std::numeric_limits::max()); // Expect cropping to 16:9 format and 3/4 scaling. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); // Adapt down one step more. adapter_.OnResolutionFramerateRequest(absl::nullopt, 480 * 270 - 1, std::numeric_limits::max()); // Expect cropping to 16:9 format and 1/2 scaling. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(320, out_width_); EXPECT_EQ(180, out_height_); // Adapt up one step. adapter_.OnResolutionFramerateRequest(480 * 270, 640 * 360, std::numeric_limits::max()); // Expect cropping to 16:9 format and 3/4 scaling. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(480, out_width_); EXPECT_EQ(270, out_height_); // Adapt up one step more. adapter_.OnResolutionFramerateRequest(640 * 360, 960 * 540, std::numeric_limits::max()); // Expect cropping to 16:9 format and no scaling. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); // Try to adapt up one step more. adapter_.OnResolutionFramerateRequest(960 * 540, 1280 * 720, std::numeric_limits::max()); // Expect cropping to 16:9 format and no scaling. EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, cropped_width_); EXPECT_EQ(360, cropped_height_); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } TEST_P(VideoAdapterTest, TestCroppingOddResolution) { // Ask for 640x360 (16:9 aspect), with 3/16 scaling. OnOutputFormatRequest(640, 360, absl::nullopt); adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 360 * 3 / 16 * 3 / 16, std::numeric_limits::max()); // Send 640x480 (4:3 aspect). EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); // Instead of getting the exact aspect ratio with cropped resolution 640x360, // the resolution should be adjusted to get a perfect scale factor instead. EXPECT_EQ(640, cropped_width_); EXPECT_EQ(368, cropped_height_); EXPECT_EQ(120, out_width_); EXPECT_EQ(69, out_height_); } TEST_P(VideoAdapterTest, TestAdaptToVerySmallResolution) { // Ask for 1920x1080 (16:9 aspect), with 1/16 scaling. const int w = 1920; const int h = 1080; OnOutputFormatRequest(w, h, absl::nullopt); adapter_.OnResolutionFramerateRequest(absl::nullopt, w * h * 1 / 16 * 1 / 16, std::numeric_limits::max()); // Send 1920x1080 (16:9 aspect). EXPECT_TRUE(adapter_.AdaptFrameResolution( w, h, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); // Instead of getting the exact aspect ratio with cropped resolution 1920x1080 // the resolution should be adjusted to get a perfect scale factor instead. EXPECT_EQ(1920, cropped_width_); EXPECT_EQ(1072, cropped_height_); EXPECT_EQ(120, out_width_); EXPECT_EQ(67, out_height_); // Adapt back up one step to 3/32. adapter_.OnResolutionFramerateRequest(w * h * 3 / 32 * 3 / 32, w * h * 1 / 8 * 1 / 8, std::numeric_limits::max()); // Send 1920x1080 (16:9 aspect). EXPECT_TRUE(adapter_.AdaptFrameResolution( w, h, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(180, out_width_); EXPECT_EQ(99, out_height_); } TEST_P(VideoAdapterTest, AdaptFrameResolutionDropWithResolutionRequest) { OnOutputFormatRequest(0, 0, kDefaultFps); EXPECT_FALSE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); adapter_.OnResolutionFramerateRequest(960 * 540, std::numeric_limits::max(), std::numeric_limits::max()); // Still expect all frames to be dropped EXPECT_FALSE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); adapter_.OnResolutionFramerateRequest(absl::nullopt, 640 * 480 - 1, std::numeric_limits::max()); // Still expect all frames to be dropped EXPECT_FALSE(adapter_.AdaptFrameResolution(kWidth, kHeight, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); } // Test that we will adapt to max given a target pixel count close to max. TEST_P(VideoAdapterTest, TestAdaptToMax) { OnOutputFormatRequest(640, 360, kDefaultFps); adapter_.OnResolutionFramerateRequest(640 * 360 - 1 /* target */, std::numeric_limits::max(), std::numeric_limits::max()); EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_)); EXPECT_EQ(640, out_width_); EXPECT_EQ(360, out_height_); } // Test adjusting to 16:9 in landscape, and 9:16 in portrait. TEST(VideoAdapterTestMultipleOrientation, TestNormal) { VideoAdapter video_adapter; video_adapter.OnOutputFormatRequest(std::make_pair(640, 360), 640 * 360, std::make_pair(360, 640), 360 * 640, 30); int cropped_width; int cropped_height; int out_width; int out_height; EXPECT_TRUE(video_adapter.AdaptFrameResolution( /* in_width= */ 640, /* in_height= */ 480, /* in_timestamp_ns= */ 0, &cropped_width, &cropped_height, &out_width, &out_height)); EXPECT_EQ(640, cropped_width); EXPECT_EQ(360, cropped_height); EXPECT_EQ(640, out_width); EXPECT_EQ(360, out_height); EXPECT_TRUE(video_adapter.AdaptFrameResolution( /* in_width= */ 480, /* in_height= */ 640, /* in_timestamp_ns= */ rtc::kNumNanosecsPerSec / 30, &cropped_width, &cropped_height, &out_width, &out_height)); EXPECT_EQ(360, cropped_width); EXPECT_EQ(640, cropped_height); EXPECT_EQ(360, out_width); EXPECT_EQ(640, out_height); } // Force output to be 9:16, even for landscape input. TEST(VideoAdapterTestMultipleOrientation, TestForcePortrait) { VideoAdapter video_adapter; video_adapter.OnOutputFormatRequest(std::make_pair(360, 640), 640 * 360, std::make_pair(360, 640), 360 * 640, 30); int cropped_width; int cropped_height; int out_width; int out_height; EXPECT_TRUE(video_adapter.AdaptFrameResolution( /* in_width= */ 640, /* in_height= */ 480, /* in_timestamp_ns= */ 0, &cropped_width, &cropped_height, &out_width, &out_height)); EXPECT_EQ(270, cropped_width); EXPECT_EQ(480, cropped_height); EXPECT_EQ(270, out_width); EXPECT_EQ(480, out_height); EXPECT_TRUE(video_adapter.AdaptFrameResolution( /* in_width= */ 480, /* in_height= */ 640, /* in_timestamp_ns= */ rtc::kNumNanosecsPerSec / 30, &cropped_width, &cropped_height, &out_width, &out_height)); EXPECT_EQ(360, cropped_width); EXPECT_EQ(640, cropped_height); EXPECT_EQ(360, out_width); EXPECT_EQ(640, out_height); } } // namespace cricket