1
2 /*
3 * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
4 *
5 * Use of this source code is governed by a BSD-style license
6 * that can be found in the LICENSE file in the root of the source
7 * tree. An additional intellectual property rights grant can be found
8 * in the file PATENTS. All contributing project authors may
9 * be found in the AUTHORS file in the root of the source tree.
10 */
11
12 #include "api/video/i210_buffer.h"
13
14 #include "api/video/i420_buffer.h"
15 #include "test/frame_utils.h"
16 #include "test/gmock.h"
17 #include "test/gtest.h"
18
19 namespace webrtc {
20
21 namespace {
22
GetY(rtc::scoped_refptr<I210BufferInterface> buf,int col,int row)23 int GetY(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
24 return buf->DataY()[row * buf->StrideY() + col];
25 }
26
GetU(rtc::scoped_refptr<I210BufferInterface> buf,int col,int row)27 int GetU(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
28 return buf->DataU()[row * buf->StrideU() + col];
29 }
30
GetV(rtc::scoped_refptr<I210BufferInterface> buf,int col,int row)31 int GetV(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
32 return buf->DataV()[row * buf->StrideV() + col];
33 }
34
FillI210Buffer(rtc::scoped_refptr<I210Buffer> buf)35 void FillI210Buffer(rtc::scoped_refptr<I210Buffer> buf) {
36 const uint16_t Y = 4;
37 const uint16_t U = 8;
38 const uint16_t V = 16;
39 for (int row = 0; row < buf->height(); ++row) {
40 for (int col = 0; col < buf->width(); ++col) {
41 buf->MutableDataY()[row * buf->StrideY() + col] = Y;
42 }
43 }
44 for (int row = 0; row < buf->ChromaHeight(); ++row) {
45 for (int col = 0; col < buf->ChromaWidth(); ++col) {
46 buf->MutableDataU()[row * buf->StrideU() + col] = U;
47 buf->MutableDataV()[row * buf->StrideV() + col] = V;
48 }
49 }
50 }
51
52 } // namespace
53
TEST(I210BufferTest,InitialData)54 TEST(I210BufferTest, InitialData) {
55 constexpr int stride = 3;
56 constexpr int halfstride = (stride + 1) >> 1;
57 constexpr int width = 3;
58 constexpr int halfwidth = (width + 1) >> 1;
59 constexpr int height = 3;
60
61 rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
62 EXPECT_EQ(width, i210_buffer->width());
63 EXPECT_EQ(height, i210_buffer->height());
64 EXPECT_EQ(stride, i210_buffer->StrideY());
65 EXPECT_EQ(halfstride, i210_buffer->StrideU());
66 EXPECT_EQ(halfstride, i210_buffer->StrideV());
67 EXPECT_EQ(halfwidth, i210_buffer->ChromaWidth());
68 EXPECT_EQ(height, i210_buffer->ChromaHeight());
69 }
70
TEST(I210BufferTest,ReadPixels)71 TEST(I210BufferTest, ReadPixels) {
72 constexpr int width = 3;
73 constexpr int halfwidth = (width + 1) >> 1;
74 constexpr int height = 3;
75
76 rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
77 // Y = 4, U = 8, V = 16.
78 FillI210Buffer(i210_buffer);
79 for (int row = 0; row < height; row++) {
80 for (int col = 0; col < width; col++) {
81 EXPECT_EQ(4, GetY(i210_buffer, col, row));
82 }
83 }
84 for (int row = 0; row < height; row++) {
85 for (int col = 0; col < halfwidth; col++) {
86 EXPECT_EQ(8, GetU(i210_buffer, col, row));
87 EXPECT_EQ(16, GetV(i210_buffer, col, row));
88 }
89 }
90 }
91
TEST(I210BufferTest,ToI420)92 TEST(I210BufferTest, ToI420) {
93 constexpr int width = 3;
94 constexpr int halfwidth = (width + 1) >> 1;
95 constexpr int height = 3;
96 constexpr int size = width * height;
97 constexpr int quartersize = (width + 1) / 2 * (height + 1) / 2;
98 rtc::scoped_refptr<I420Buffer> reference(I420Buffer::Create(width, height));
99 memset(reference->MutableDataY(), 1, size);
100 memset(reference->MutableDataU(), 2, quartersize);
101 memset(reference->MutableDataV(), 4, quartersize);
102
103 rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
104 // Y = 4, U = 8, V = 16.
105 FillI210Buffer(i210_buffer);
106
107 // Confirm YUV values are as expected.
108 for (int row = 0; row < height; row++) {
109 for (int col = 0; col < width; col++) {
110 EXPECT_EQ(4, GetY(i210_buffer, col, row));
111 }
112 }
113 for (int row = 0; row < height; row++) {
114 for (int col = 0; col < halfwidth; col++) {
115 EXPECT_EQ(8, GetU(i210_buffer, col, row));
116 EXPECT_EQ(16, GetV(i210_buffer, col, row));
117 }
118 }
119
120 rtc::scoped_refptr<I420BufferInterface> i420_buffer(i210_buffer->ToI420());
121 EXPECT_TRUE(test::FrameBufsEqual(reference, i420_buffer));
122 EXPECT_EQ(height, i420_buffer->height());
123 EXPECT_EQ(width, i420_buffer->width());
124 }
125
126 } // namespace webrtc
127