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// Copyright (c) 2010 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 "base/path_service.h"
#include "media/base/djb2.h"
#include "media/base/yuv_convert.h"
#include "media/base/yuv_row.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_1280x720_P420.yuv
// yuvhalf -yv12 -skip 24 bali_1280x720_P420.yuv bali_640x360_P420.yuv
// ffmpeg -vframes 25 -i bali.mov -vcodec rawvideo -pix_fmt yuv422p -an
// bali_1280x720_P422.yuv
// yuvhalf -yv16 -skip 24 bali_1280x720_P422.yuv bali_640x360_P422.yuv
// Size of raw image.
// Size of raw image.
static const int kWidth = 640;
static const int kHeight = 360;
static const int kScaledWidth = 1024;
static const int kScaledHeight = 768;
static const int kBpp = 4;
// Surface sizes.
static const size_t kYUV12Size = kWidth * kHeight * 12 / 8;
static const size_t kYUV16Size = kWidth * kHeight * 16 / 8;
static const size_t kRGBSize = kWidth * kHeight * kBpp;
static const size_t kRGBSizeConverted = kWidth * kHeight * kBpp;
// Set to 100 to time ConvertYUVToRGB32.
static const int kTestTimes = 1;
TEST(YUVConvertTest, YV12) {
// Allocate all surfaces.
scoped_array<uint8> yuv_bytes(new uint8[kYUV12Size]);
scoped_array<uint8> rgb_bytes(new uint8[kRGBSize]);
scoped_array<uint8> rgb_converted_bytes(new uint8[kRGBSizeConverted]);
// 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_640x360_P420.yuv"));
EXPECT_EQ(static_cast<int>(kYUV12Size),
file_util::ReadFile(yuv_url,
reinterpret_cast<char*>(yuv_bytes.get()),
static_cast<int>(kYUV12Size)));
for (int i = 0; i < kTestTimes; ++i) {
// Convert a frame of YUV to 32 bit ARGB.
media::ConvertYUVToRGB32(yuv_bytes.get(), // Y
yuv_bytes.get() + kWidth * kHeight, // U
yuv_bytes.get() + kWidth * kHeight * 5 / 4, // V
rgb_converted_bytes.get(), // RGB output
kWidth, kHeight, // Dimensions
kWidth, // YStride
kWidth / 2, // UVStride
kWidth * kBpp, // RGBStride
media::YV12);
}
unsigned int rgb_hash = DJB2Hash(rgb_converted_bytes.get(), kRGBSizeConverted,
kDJB2HashSeed);
// To get this hash value, run once and examine the following EXPECT_EQ.
// Then plug new hash value into EXPECT_EQ statements.
// TODO(fbarchard): Make reference code mimic MMX exactly
#if USE_MMX
EXPECT_EQ(2413171226u, rgb_hash);
#else
EXPECT_EQ(2936300063u, rgb_hash);
#endif
}
TEST(YUVConvertTest, YV16) {
// Allocate all surfaces.
scoped_array<uint8> yuv_bytes(new uint8[kYUV16Size]);
scoped_array<uint8> rgb_bytes(new uint8[kRGBSize]);
scoped_array<uint8> rgb_converted_bytes(new uint8[kRGBSizeConverted]);
// Read YV16 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_640x360_P422.yuv"));
EXPECT_EQ(static_cast<int>(kYUV16Size),
file_util::ReadFile(yuv_url,
reinterpret_cast<char*>(yuv_bytes.get()),
static_cast<int>(kYUV16Size)));
for (int i = 0; i < kTestTimes; ++i) {
// Convert a frame of YUV to 32 bit ARGB.
media::ConvertYUVToRGB32(yuv_bytes.get(), // Y
yuv_bytes.get() + kWidth * kHeight, // U
yuv_bytes.get() + kWidth * kHeight * 3 / 2, // V
rgb_converted_bytes.get(), // RGB output
kWidth, kHeight, // Dimensions
kWidth, // YStride
kWidth / 2, // UVStride
kWidth * kBpp, // RGBStride
media::YV16);
}
unsigned int rgb_hash = DJB2Hash(rgb_converted_bytes.get(), kRGBSizeConverted,
kDJB2HashSeed);
// To get this hash value, run once and examine the following EXPECT_EQ.
// Then plug new hash value into EXPECT_EQ statements.
// TODO(fbarchard): Make reference code mimic MMX exactly
#if USE_MMX
EXPECT_EQ(4222342047u, rgb_hash);
#else
EXPECT_EQ(106869773u, rgb_hash);
#endif
}
TEST(YUVScaleTest, YV12) {
// 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_640x360_P420.yuv"));
const size_t size_of_yuv = kWidth * kHeight * 12 / 8; // 12 bpp.
scoped_array<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.get()),
static_cast<int>(size_of_yuv)));
// Scale a frame of YUV to 32 bit ARGB.
const size_t size_of_rgb_scaled = kScaledWidth * kScaledHeight * kBpp;
scoped_array<uint8> rgb_scaled_bytes(new uint8[size_of_rgb_scaled]);
for (int i = 0; i < kTestTimes; ++i) {
media::ScaleYUVToRGB32(yuv_bytes.get(), // Y
yuv_bytes.get() + kWidth * kHeight, // U
yuv_bytes.get() + kWidth * kHeight * 5 / 4, // V
rgb_scaled_bytes.get(), // Rgb output
kWidth, kHeight, // Dimensions
kScaledWidth, kScaledHeight, // Dimensions
kWidth, // YStride
kWidth / 2, // UvStride
kScaledWidth * kBpp, // RgbStride
media::YV12,
media::ROTATE_0,
media::FILTER_NONE);
}
unsigned int rgb_hash = DJB2Hash(rgb_scaled_bytes.get(), size_of_rgb_scaled,
kDJB2HashSeed);
// To get this hash value, run once and examine the following EXPECT_EQ.
// Then plug new hash value into EXPECT_EQ statements.
// TODO(fbarchard): Make reference code mimic MMX exactly
#if USE_MMX
EXPECT_EQ(4259656254u, rgb_hash);
#else
EXPECT_EQ(197274901u, rgb_hash);
#endif
}
TEST(YUVScaleTest, YV16) {
// Read YV16 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_640x360_P422.yuv"));
const size_t size_of_yuv = kWidth * kHeight * 16 / 8; // 16 bpp.
scoped_array<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.get()),
static_cast<int>(size_of_yuv)));
// Scale a frame of YUV to 32 bit ARGB.
const size_t size_of_rgb_scaled = kScaledWidth * kScaledHeight * kBpp;
scoped_array<uint8> rgb_scaled_bytes(new uint8[size_of_rgb_scaled]);
for (int i = 0; i < kTestTimes; ++i) {
media::ScaleYUVToRGB32(yuv_bytes.get(), // Y
yuv_bytes.get() + kWidth * kHeight, // U
yuv_bytes.get() + kWidth * kHeight * 3 / 2, // V
rgb_scaled_bytes.get(), // Rgb output
kWidth, kHeight, // Dimensions
kScaledWidth, kScaledHeight, // Dimensions
kWidth, // YStride
kWidth / 2, // UvStride
kScaledWidth * kBpp, // RgbStride
media::YV16,
media::ROTATE_0,
media::FILTER_NONE);
}
unsigned int rgb_hash = DJB2Hash(rgb_scaled_bytes.get(), size_of_rgb_scaled,
kDJB2HashSeed);
// To get this hash value, run once and examine the following EXPECT_EQ.
// Then plug new hash value into EXPECT_EQ statements.
// TODO(fbarchard): Make reference code mimic MMX exactly
#if USE_MMX
EXPECT_EQ(974965419u, rgb_hash);
#else
EXPECT_EQ(2946450771u, rgb_hash);
#endif
}
// This tests a known worst case YUV value, and for overflow.
TEST(YUVConvertTest, Clamp) {
// Allocate all surfaces.
scoped_array<uint8> yuv_bytes(new uint8[1]);
scoped_array<uint8> rgb_bytes(new uint8[1]);
scoped_array<uint8> rgb_converted_bytes(new uint8[1]);
// Values that failed previously in bug report.
unsigned char y = 255u;
unsigned char u = 255u;
unsigned char v = 19u;
// Prefill extra large destination buffer to test for overflow.
unsigned char rgb[8] = { 0, 1, 2, 3, 4, 5, 6, 7 };
// TODO(fbarchard): Make reference code mimic MMX exactly
// The code is fixed point and has slight rounding differences.
#if USE_MMX
unsigned char expected[8] = { 255, 255, 104, 255, 4, 5, 6, 7 };
#else
unsigned char expected[8] = { 255, 255, 105, 255, 4, 5, 6, 7 };
#endif
// Convert a frame of YUV to 32 bit ARGB.
media::ConvertYUVToRGB32(&y, // Y
&u, // U
&v, // V
&rgb[0], // RGB output
1, 1, // Dimensions
0, // YStride
0, // UVStride
0, // RGBStride
media::YV12);
int expected_test = memcmp(rgb, expected, sizeof(expected));
EXPECT_EQ(0, expected_test);
}
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