1 /*
2 * Copyright (c) 2016 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 <vector>
11
12 #include "api/scoped_refptr.h"
13 #include "rtc_tools/frame_analyzer/reference_less_video_analysis_lib.h"
14 #include "rtc_tools/video_file_reader.h"
15 #include "test/gtest.h"
16 #include "test/testsupport/file_utils.h"
17
18 class ReferenceLessVideoAnalysisTest : public ::testing::Test {
19 public:
SetUp()20 void SetUp() override {
21 video = webrtc::test::OpenY4mFile(
22 webrtc::test::ResourcePath("reference_less_video_test_file", "y4m"));
23 ASSERT_TRUE(video);
24 }
25
26 rtc::scoped_refptr<webrtc::test::Video> video;
27 std::vector<double> psnr_per_frame;
28 std::vector<double> ssim_per_frame;
29 };
30
TEST_F(ReferenceLessVideoAnalysisTest,MatchComputedMetrics)31 TEST_F(ReferenceLessVideoAnalysisTest, MatchComputedMetrics) {
32 compute_metrics(video, &psnr_per_frame, &ssim_per_frame);
33 EXPECT_EQ(74, (int)psnr_per_frame.size());
34
35 ASSERT_NEAR(27.2f, psnr_per_frame[1], 0.1f);
36 ASSERT_NEAR(24.9f, psnr_per_frame[5], 0.1f);
37
38 ASSERT_NEAR(0.9f, ssim_per_frame[1], 0.1f);
39 ASSERT_NEAR(0.9f, ssim_per_frame[5], 0.1f);
40 }
41
TEST_F(ReferenceLessVideoAnalysisTest,MatchIdenticalFrameClusters)42 TEST_F(ReferenceLessVideoAnalysisTest, MatchIdenticalFrameClusters) {
43 compute_metrics(video, &psnr_per_frame, &ssim_per_frame);
44 std::vector<int> identical_frame_clusters =
45 find_frame_clusters(psnr_per_frame, ssim_per_frame);
46 EXPECT_EQ(5, (int)identical_frame_clusters.size());
47 EXPECT_EQ(1, identical_frame_clusters[0]);
48 EXPECT_EQ(1, identical_frame_clusters[4]);
49 }
50