1 // This file is part of OpenCV project.
2 // It is subject to the license terms in the LICENSE file found in the top-level directory
3 // of this distribution and at http://opencv.org/license.html.
5 // Copyright (C) 2020 Intel Corporation
7 #include "test_precomp.hpp"
9 #include <opencv2/gapi/media.hpp>
11 ////////////////////////////////////////////////////////////////////////////////
14 namespace opencv_test {
16 G_API_OP(GBlurFrame, <GMat(GFrame)>, "test.blur_frame") {
17 static GMatDesc outMeta(GFrameDesc in) {
18 return cv::GMatDesc(CV_8U,3,in.size);
22 GAPI_OCV_KERNEL(OCVBlurFrame, GBlurFrame) {
23 static void run(const cv::MediaFrame &in, cv::Mat& out) {
24 GAPI_Assert(in.desc().fmt == cv::MediaFormat::BGR);
25 cv::MediaFrame::View view = in.access(cv::MediaFrame::Access::R);
26 cv::blur(cv::Mat(in.desc().size, CV_8UC3, view.ptr[0], view.stride[0]),
32 ////////////////////////////////////////////////////////////////////////////////
33 // cv::MediaFrame tests
35 class TestMediaBGR final: public cv::MediaFrame::IAdapter {
37 using Cb = cv::MediaFrame::View::Callback;
41 explicit TestMediaBGR(cv::Mat m, Cb cb = [](){})
42 : m_mat(m), m_cb(cb) {
44 cv::GFrameDesc meta() const override {
45 return cv::GFrameDesc{cv::MediaFormat::BGR, cv::Size(m_mat.cols, m_mat.rows)};
47 cv::MediaFrame::View access(cv::MediaFrame::Access) override {
48 cv::MediaFrame::View::Ptrs pp = { m_mat.ptr(), nullptr, nullptr, nullptr };
49 cv::MediaFrame::View::Strides ss = { m_mat.step, 0u, 0u, 0u };
50 return cv::MediaFrame::View(std::move(pp), std::move(ss), Cb{m_cb});
54 class TestMediaNV12 final: public cv::MediaFrame::IAdapter {
58 TestMediaNV12(cv::Mat y, cv::Mat uv) : m_y(y), m_uv(uv) {
60 cv::GFrameDesc meta() const override {
61 return cv::GFrameDesc{cv::MediaFormat::NV12, cv::Size(m_y.cols, m_y.rows)};
63 cv::MediaFrame::View access(cv::MediaFrame::Access) override {
64 cv::MediaFrame::View::Ptrs pp = {
65 m_y.ptr(), m_uv.ptr(), nullptr, nullptr
67 cv::MediaFrame::View::Strides ss = {
68 m_y.step, m_uv.step, 0u, 0u
70 return cv::MediaFrame::View(std::move(pp), std::move(ss));
73 } // anonymous namespace
75 struct MediaFrame_Test: public ::testing::Test {
77 using MF = cv::MediaFrame;
81 struct MediaFrame_BGR: public MediaFrame_Test {
84 : bgr(M::eye(240, 320, CV_8UC3)) {
85 cv::randn(bgr, cv::Scalar::all(127.0f), cv::Scalar::all(40.f));
86 frame = MF::Create<TestMediaBGR>(bgr);
90 TEST_F(MediaFrame_BGR, Meta) {
91 auto meta = frame.desc();
92 EXPECT_EQ(cv::MediaFormat::BGR, meta.fmt);
93 EXPECT_EQ(cv::Size(320,240), meta.size);
96 TEST_F(MediaFrame_BGR, Access) {
97 cv::MediaFrame::View view1 = frame.access(cv::MediaFrame::Access::R);
98 EXPECT_EQ(bgr.ptr(), view1.ptr[0]);
99 EXPECT_EQ(bgr.step, view1.stride[0]);
101 cv::MediaFrame::View view2 = frame.access(cv::MediaFrame::Access::R);
102 EXPECT_EQ(bgr.ptr(), view2.ptr[0]);
103 EXPECT_EQ(bgr.step, view2.stride[0]);
106 TEST_F(MediaFrame_BGR, Input) {
107 // Run the OpenCV code
108 cv::Mat out_mat_ocv, out_mat_gapi;
109 cv::blur(bgr, out_mat_ocv, cv::Size{3,3});
111 // Run the G-API code
113 cv::GMat out = GBlurFrame::on(in);
114 cv::GComputation(cv::GIn(in), cv::GOut(out))
115 .apply(cv::gin(frame),
116 cv::gout(out_mat_gapi),
117 cv::compile_args(cv::gapi::kernels<OCVBlurFrame>()));
120 EXPECT_EQ(0, cvtest::norm(out_mat_ocv, out_mat_gapi, NORM_INF));
123 struct MediaFrame_NV12: public MediaFrame_Test {
128 , buf(M::eye(sz.height*3/2, sz.width, CV_8UC1))
129 , y (buf.rowRange(0, sz.height))
130 , uv (buf.rowRange(sz.height, sz.height*3/2)) {
131 frame = MF::Create<TestMediaNV12>(y, uv);
135 TEST_F(MediaFrame_NV12, Meta) {
136 auto meta = frame.desc();
137 EXPECT_EQ(cv::MediaFormat::NV12, meta.fmt);
138 EXPECT_EQ(cv::Size(320,240), meta.size);
141 TEST_F(MediaFrame_NV12, Access) {
142 cv::MediaFrame::View view1 = frame.access(cv::MediaFrame::Access::R);
143 EXPECT_EQ(y. ptr(), view1.ptr [0]);
144 EXPECT_EQ(y. step, view1.stride[0]);
145 EXPECT_EQ(uv.ptr(), view1.ptr [1]);
146 EXPECT_EQ(uv.step, view1.stride[1]);
148 cv::MediaFrame::View view2 = frame.access(cv::MediaFrame::Access::R);
149 EXPECT_EQ(y. ptr(), view2.ptr [0]);
150 EXPECT_EQ(y. step, view2.stride[0]);
151 EXPECT_EQ(uv.ptr(), view2.ptr [1]);
152 EXPECT_EQ(uv.step, view2.stride[1]);
155 TEST(MediaFrame, Callback) {
157 cv::Mat bgr = cv::Mat::eye(240, 320, CV_8UC3);
158 cv::MediaFrame frame = cv::MediaFrame::Create<TestMediaBGR>(bgr, [&counter](){counter++;});
160 // Test that the callback (in this case, incrementing the counter)
161 // is called only on View destruction.
162 EXPECT_EQ(0, counter);
164 cv::MediaFrame::View v1 = frame.access(cv::MediaFrame::Access::R);
165 EXPECT_EQ(0, counter);
167 EXPECT_EQ(1, counter);
169 cv::MediaFrame::View v1 = frame.access(cv::MediaFrame::Access::R);
170 EXPECT_EQ(1, counter);
171 cv::MediaFrame::View v2 = frame.access(cv::MediaFrame::Access::W);
172 EXPECT_EQ(1, counter);
174 EXPECT_EQ(3, counter);
177 } // namespace opencv_test