/* | |
* Copyright (c) 2021 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/i444_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<I444BufferInterface> buf, int col, int row) { | |
return buf->DataY()[row * buf->StrideY() + col]; | |
} | |
int GetU(rtc::scoped_refptr<I444BufferInterface> buf, int col, int row) { | |
return buf->DataU()[row * buf->StrideU() + col]; | |
} | |
int GetV(rtc::scoped_refptr<I444BufferInterface> buf, int col, int row) { | |
return buf->DataV()[row * buf->StrideV() + col]; | |
} | |
void FillI444Buffer(rtc::scoped_refptr<I444Buffer> buf) { | |
const uint8_t Y = 1; | |
const uint8_t U = 2; | |
const uint8_t V = 3; | |
for (int row = 0; row < buf->height(); ++row) { | |
for (int col = 0; col < buf->width(); ++col) { | |
buf->MutableDataY()[row * buf->StrideY() + col] = Y; | |
buf->MutableDataU()[row * buf->StrideU() + col] = U; | |
buf->MutableDataV()[row * buf->StrideV() + col] = V; | |
} | |
} | |
} | |
} // namespace | |
TEST(I444BufferTest, InitialData) { | |
constexpr int stride = 3; | |
constexpr int width = 3; | |
constexpr int height = 3; | |
rtc::scoped_refptr<I444Buffer> i444_buffer(I444Buffer::Create(width, height)); | |
EXPECT_EQ(width, i444_buffer->width()); | |
EXPECT_EQ(height, i444_buffer->height()); | |
EXPECT_EQ(stride, i444_buffer->StrideY()); | |
EXPECT_EQ(stride, i444_buffer->StrideU()); | |
EXPECT_EQ(stride, i444_buffer->StrideV()); | |
EXPECT_EQ(3, i444_buffer->ChromaWidth()); | |
EXPECT_EQ(3, i444_buffer->ChromaHeight()); | |
} | |
TEST(I444BufferTest, ReadPixels) { | |
constexpr int width = 3; | |
constexpr int height = 3; | |
rtc::scoped_refptr<I444Buffer> i444_buffer(I444Buffer::Create(width, height)); | |
// Y = 1, U = 2, V = 3. | |
FillI444Buffer(i444_buffer); | |
for (int row = 0; row < height; row++) { | |
for (int col = 0; col < width; col++) { | |
EXPECT_EQ(1, GetY(i444_buffer, col, row)); | |
EXPECT_EQ(2, GetU(i444_buffer, col, row)); | |
EXPECT_EQ(3, GetV(i444_buffer, col, row)); | |
} | |
} | |
} | |
TEST(I444BufferTest, ToI420) { | |
constexpr int width = 3; | |
constexpr int height = 3; | |
constexpr int size_y = width * height; | |
constexpr int size_u = (width + 1) / 2 * (height + 1) / 2; | |
constexpr int size_v = (width + 1) / 2 * (height + 1) / 2; | |
rtc::scoped_refptr<I420Buffer> reference(I420Buffer::Create(width, height)); | |
memset(reference->MutableDataY(), 8, size_y); | |
memset(reference->MutableDataU(), 4, size_u); | |
memset(reference->MutableDataV(), 2, size_v); | |
rtc::scoped_refptr<I444Buffer> i444_buffer(I444Buffer::Create(width, height)); | |
// Convert the reference buffer to I444. | |
memset(i444_buffer->MutableDataY(), 8, size_y); | |
memset(i444_buffer->MutableDataU(), 4, size_y); | |
memset(i444_buffer->MutableDataV(), 2, size_y); | |
// Confirm YUV values are as expected. | |
for (int row = 0; row < height; row++) { | |
for (int col = 0; col < width; col++) { | |
EXPECT_EQ(8, GetY(i444_buffer, col, row)); | |
EXPECT_EQ(4, GetU(i444_buffer, col, row)); | |
EXPECT_EQ(2, GetV(i444_buffer, col, row)); | |
} | |
} | |
rtc::scoped_refptr<I420BufferInterface> i420_buffer(i444_buffer->ToI420()); | |
EXPECT_EQ(height, i420_buffer->height()); | |
EXPECT_EQ(width, i420_buffer->width()); | |
EXPECT_TRUE(test::FrameBufsEqual(reference, i420_buffer)); | |
} | |
} // namespace webrtc |