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/*
* Copyright (c) 2022 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 "api/video/i210_buffer.h"
#include "api/video/i420_buffer.h"
#include "test/frame_utils.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
int GetY(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
return buf->DataY()[row * buf->StrideY() + col];
}
int GetU(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
return buf->DataU()[row * buf->StrideU() + col];
}
int GetV(rtc::scoped_refptr<I210BufferInterface> buf, int col, int row) {
return buf->DataV()[row * buf->StrideV() + col];
}
void FillI210Buffer(rtc::scoped_refptr<I210Buffer> buf) {
const uint16_t Y = 4;
const uint16_t U = 8;
const uint16_t V = 16;
for (int row = 0; row < buf->height(); ++row) {
for (int col = 0; col < buf->width(); ++col) {
buf->MutableDataY()[row * buf->StrideY() + col] = Y;
}
}
for (int row = 0; row < buf->ChromaHeight(); ++row) {
for (int col = 0; col < buf->ChromaWidth(); ++col) {
buf->MutableDataU()[row * buf->StrideU() + col] = U;
buf->MutableDataV()[row * buf->StrideV() + col] = V;
}
}
}
} // namespace
TEST(I210BufferTest, InitialData) {
constexpr int stride = 3;
constexpr int halfstride = (stride + 1) >> 1;
constexpr int width = 3;
constexpr int halfwidth = (width + 1) >> 1;
constexpr int height = 3;
rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
EXPECT_EQ(width, i210_buffer->width());
EXPECT_EQ(height, i210_buffer->height());
EXPECT_EQ(stride, i210_buffer->StrideY());
EXPECT_EQ(halfstride, i210_buffer->StrideU());
EXPECT_EQ(halfstride, i210_buffer->StrideV());
EXPECT_EQ(halfwidth, i210_buffer->ChromaWidth());
EXPECT_EQ(height, i210_buffer->ChromaHeight());
}
TEST(I210BufferTest, ReadPixels) {
constexpr int width = 3;
constexpr int halfwidth = (width + 1) >> 1;
constexpr int height = 3;
rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
// Y = 4, U = 8, V = 16.
FillI210Buffer(i210_buffer);
for (int row = 0; row < height; row++) {
for (int col = 0; col < width; col++) {
EXPECT_EQ(4, GetY(i210_buffer, col, row));
}
}
for (int row = 0; row < height; row++) {
for (int col = 0; col < halfwidth; col++) {
EXPECT_EQ(8, GetU(i210_buffer, col, row));
EXPECT_EQ(16, GetV(i210_buffer, col, row));
}
}
}
TEST(I210BufferTest, ToI420) {
constexpr int width = 3;
constexpr int halfwidth = (width + 1) >> 1;
constexpr int height = 3;
constexpr int size = width * height;
constexpr int quartersize = (width + 1) / 2 * (height + 1) / 2;
rtc::scoped_refptr<I420Buffer> reference(I420Buffer::Create(width, height));
memset(reference->MutableDataY(), 1, size);
memset(reference->MutableDataU(), 2, quartersize);
memset(reference->MutableDataV(), 4, quartersize);
rtc::scoped_refptr<I210Buffer> i210_buffer(I210Buffer::Create(width, height));
// Y = 4, U = 8, V = 16.
FillI210Buffer(i210_buffer);
// Confirm YUV values are as expected.
for (int row = 0; row < height; row++) {
for (int col = 0; col < width; col++) {
EXPECT_EQ(4, GetY(i210_buffer, col, row));
}
}
for (int row = 0; row < height; row++) {
for (int col = 0; col < halfwidth; col++) {
EXPECT_EQ(8, GetU(i210_buffer, col, row));
EXPECT_EQ(16, GetV(i210_buffer, col, row));
}
}
rtc::scoped_refptr<I420BufferInterface> i420_buffer(i210_buffer->ToI420());
EXPECT_TRUE(test::FrameBufsEqual(reference, i420_buffer));
EXPECT_EQ(height, i420_buffer->height());
EXPECT_EQ(width, i420_buffer->width());
}
} // namespace webrtc
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