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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/base_paths.h"
#include "base/file_util.h"
#include "media/base/yuv_convert.h"
#include "testing/gtest/include/gtest/gtest.h"
// Reference images were created with the following steps
// ffmpeg -vframes 25 -i bali.mov -vcodec rawvideo -pix_fmt yuv420p -an
// bali.1280_720.yuv
// yuvhalf -skip 24 bali.1280_720.yuv bali.640_360.yuv
// yuvtool bali.640_360.yuv bali.640_360.rgb
// Size of raw image.
static const int kWidth = 640;
static const int kHeight = 360;
static const int kBpp = 4;
TEST(YuvConvertTest, Basic) {
// Read YUV reference data from file.
FilePath yuv_url;
EXPECT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &yuv_url));
yuv_url = yuv_url.Append(FILE_PATH_LITERAL("media"))
.Append(FILE_PATH_LITERAL("test"))
.Append(FILE_PATH_LITERAL("data"))
.Append(FILE_PATH_LITERAL("bali.640_360.yuv"));
const size_t size_of_yuv = kWidth * kHeight * 12 / 8;
uint8* yuv_bytes = new uint8[size_of_yuv];
EXPECT_EQ(static_cast<int>(size_of_yuv),
file_util::ReadFile(yuv_url,
reinterpret_cast<char*>(yuv_bytes),
static_cast<int>(size_of_yuv)));
// Read RGB reference data from file.
FilePath rgb_url;
EXPECT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &rgb_url));
rgb_url = rgb_url.Append(FILE_PATH_LITERAL("media"))
.Append(FILE_PATH_LITERAL("test"))
.Append(FILE_PATH_LITERAL("data"))
.Append(FILE_PATH_LITERAL("bali.640_360.rgb"));
const size_t size_of_rgb = kWidth * kHeight * kBpp;
uint8* rgb_bytes = new uint8[size_of_rgb];
EXPECT_EQ(static_cast<int>(size_of_rgb),
file_util::ReadFile(rgb_url,
reinterpret_cast<char*>(rgb_bytes),
static_cast<int>(size_of_rgb)));
// Convert a frame of YUV to 32 bit ARGB.
const size_t size_of_rgb_converted = kWidth * kHeight * kBpp;
uint8* rgb_converted_bytes = new uint8[size_of_rgb_converted];
media::ConvertYV12ToRGB32(yuv_bytes, // Y plane
yuv_bytes + kWidth * kHeight, // U plane
yuv_bytes + kWidth * kHeight * 5 / 4, // V plane
rgb_converted_bytes, // Rgb output
kWidth, kHeight, // Dimensions
kWidth, // YStride
kWidth / 2, // UvStride
kWidth * kBpp); // RgbStride
// Compare converted YUV to reference conversion file.
int rgb_diff = memcmp(rgb_converted_bytes, rgb_bytes, size_of_rgb);
EXPECT_EQ(rgb_diff, 0);
}
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