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// Copyright (c) 2011 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/logging.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"
// Size of raw image.
static const int kSourceWidth = 640;
static const int kSourceHeight = 360;
static const int kSourceYSize = kSourceWidth * kSourceHeight;
static const int kScaledWidth = 1024;
static const int kScaledHeight = 768;
static const int kBpp = 4;
// Surface sizes for various test files.
static const int kYUV12Size = kSourceYSize * 12 / 8;
static const int kYUV16Size = kSourceYSize * 16 / 8;
static const int kYUY2Size = kSourceYSize * 16 / 8;
static const int kRGBSize = kSourceYSize * kBpp;
static const int kRGBSizeScaled = kScaledWidth * kScaledHeight * kBpp;
static const int kRGB24Size = kSourceYSize * 3;
static const int kRGBSizeConverted = kSourceYSize * kBpp;
// Helper for reading test data into a scoped_array<uint8>.
static void ReadData(const FilePath::CharType* filename,
int expected_size,
scoped_array<uint8>* data) {
data->reset(new uint8[expected_size]);
FilePath path;
CHECK(PathService::Get(base::DIR_SOURCE_ROOT, &path));
path = path.Append(FILE_PATH_LITERAL("media"))
.Append(FILE_PATH_LITERAL("test"))
.Append(FILE_PATH_LITERAL("data"))
.Append(filename);
// Verify file size is correct.
int64 actual_size = 0;
file_util::GetFileSize(path, &actual_size);
CHECK_EQ(actual_size, expected_size);
// Verify bytes read are correct.
int bytes_read = file_util::ReadFile(
path, reinterpret_cast<char*>(data->get()), expected_size);
CHECK_EQ(bytes_read, expected_size);
}
static void ReadYV12Data(scoped_array<uint8>* data) {
ReadData(FILE_PATH_LITERAL("bali_640x360_P420.yuv"), kYUV12Size, data);
}
static void ReadYV16Data(scoped_array<uint8>* data) {
ReadData(FILE_PATH_LITERAL("bali_640x360_P422.yuv"), kYUV16Size, data);
}
static void ReadRGB24Data(scoped_array<uint8>* data) {
ReadData(FILE_PATH_LITERAL("bali_640x360_RGB24.rgb"), kRGB24Size, data);
}
static void ReadYUY2Data(scoped_array<uint8>* data) {
ReadData(FILE_PATH_LITERAL("bali_640x360_YUY2.yuv"), kYUY2Size, data);
}
TEST(YUVConvertTest, YV12) {
// Allocate all surfaces.
scoped_array<uint8> yuv_bytes;
scoped_array<uint8> rgb_bytes(new uint8[kRGBSize]);
scoped_array<uint8> rgb_converted_bytes(new uint8[kRGBSizeConverted]);
// Read YUV reference data from file.
ReadYV12Data(&yuv_bytes);
// Convert a frame of YUV to 32 bit ARGB.
media::ConvertYUVToRGB32(yuv_bytes.get(),
yuv_bytes.get() + kSourceYSize,
yuv_bytes.get() + kSourceYSize * 5 / 4,
rgb_converted_bytes.get(), // RGB output
kSourceWidth, kSourceHeight, // Dimensions
kSourceWidth, // YStride
kSourceWidth / 2, // UVStride
kSourceWidth * kBpp, // RGBStride
media::YV12);
uint32 rgb_hash = DJB2Hash(rgb_converted_bytes.get(), kRGBSizeConverted,
kDJB2HashSeed);
EXPECT_EQ(2413171226u, rgb_hash);
}
TEST(YUVConvertTest, YV16) {
// Allocate all surfaces.
scoped_array<uint8> yuv_bytes;
scoped_array<uint8> rgb_bytes(new uint8[kRGBSize]);
scoped_array<uint8> rgb_converted_bytes(new uint8[kRGBSizeConverted]);
// Read YUV reference data from file.
ReadYV16Data(&yuv_bytes);
// Convert a frame of YUV to 32 bit ARGB.
media::ConvertYUVToRGB32(yuv_bytes.get(), // Y
yuv_bytes.get() + kSourceYSize, // U
yuv_bytes.get() + kSourceYSize * 3 / 2, // V
rgb_converted_bytes.get(), // RGB output
kSourceWidth, kSourceHeight, // Dimensions
kSourceWidth, // YStride
kSourceWidth / 2, // UVStride
kSourceWidth * kBpp, // RGBStride
media::YV16);
uint32 rgb_hash = DJB2Hash(rgb_converted_bytes.get(), kRGBSizeConverted,
kDJB2HashSeed);
EXPECT_EQ(4222342047u, rgb_hash);
}
struct YUVScaleTestData {
YUVScaleTestData(media::YUVType y, media::ScaleFilter s, uint32 r)
: yuv_type(y),
scale_filter(s),
rgb_hash(r) {
}
media::YUVType yuv_type;
media::ScaleFilter scale_filter;
uint32 rgb_hash;
};
class YUVScaleTest : public ::testing::TestWithParam<YUVScaleTestData> {
public:
YUVScaleTest() {
switch (GetParam().yuv_type) {
case media::YV12:
ReadYV12Data(&yuv_bytes_);
break;
case media::YV16:
ReadYV16Data(&yuv_bytes_);
break;
}
rgb_bytes_.reset(new uint8[kRGBSizeScaled]);
}
// Helpers for getting the proper Y, U and V plane offsets.
uint8* y_plane() { return yuv_bytes_.get(); }
uint8* u_plane() { return yuv_bytes_.get() + kSourceYSize; }
uint8* v_plane() {
switch (GetParam().yuv_type) {
case media::YV12:
return yuv_bytes_.get() + kSourceYSize * 5 / 4;
case media::YV16:
return yuv_bytes_.get() + kSourceYSize * 3 / 2;
}
return NULL;
}
scoped_array<uint8> yuv_bytes_;
scoped_array<uint8> rgb_bytes_;
};
TEST_P(YUVScaleTest, Normal) {
media::ScaleYUVToRGB32(y_plane(), // Y
u_plane(), // U
v_plane(), // V
rgb_bytes_.get(), // RGB output
kSourceWidth, kSourceHeight, // Dimensions
kScaledWidth, kScaledHeight, // Dimensions
kSourceWidth, // YStride
kSourceWidth / 2, // UvStride
kScaledWidth * kBpp, // RgbStride
GetParam().yuv_type,
media::ROTATE_0,
GetParam().scale_filter);
uint32 rgb_hash = DJB2Hash(rgb_bytes_.get(), kRGBSizeScaled, kDJB2HashSeed);
EXPECT_EQ(GetParam().rgb_hash, rgb_hash);
}
TEST_P(YUVScaleTest, ZeroSourceSize) {
media::ScaleYUVToRGB32(y_plane(), // Y
u_plane(), // U
v_plane(), // V
rgb_bytes_.get(), // RGB output
0, 0, // Dimensions
kScaledWidth, kScaledHeight, // Dimensions
kSourceWidth, // YStride
kSourceWidth / 2, // UvStride
kScaledWidth * kBpp, // RgbStride
GetParam().yuv_type,
media::ROTATE_0,
GetParam().scale_filter);
// Testing for out-of-bound read/writes with AddressSanitizer.
}
TEST_P(YUVScaleTest, ZeroDestinationSize) {
media::ScaleYUVToRGB32(y_plane(), // Y
u_plane(), // U
v_plane(), // V
rgb_bytes_.get(), // RGB output
kSourceWidth, kSourceHeight, // Dimensions
0, 0, // Dimensions
kSourceWidth, // YStride
kSourceWidth / 2, // UvStride
kScaledWidth * kBpp, // RgbStride
GetParam().yuv_type,
media::ROTATE_0,
GetParam().scale_filter);
// Testing for out-of-bound read/writes with AddressSanitizer.
}
INSTANTIATE_TEST_CASE_P(
YUVScaleFormats, YUVScaleTest,
::testing::Values(
YUVScaleTestData(media::YV12, media::FILTER_NONE, 4259656254u),
YUVScaleTestData(media::YV16, media::FILTER_NONE, 974965419u),
YUVScaleTestData(media::YV12, media::FILTER_BILINEAR, 2086305576u),
YUVScaleTestData(media::YV16, media::FILTER_BILINEAR, 3857179240u)));
// 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 };
unsigned char expected[8] = { 255, 255, 104, 255, 4, 5, 6, 7 };
// 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);
}
TEST(YUVConvertTest, RGB24ToYUV) {
// Allocate all surfaces.
scoped_array<uint8> rgb_bytes;
scoped_array<uint8> yuv_converted_bytes(new uint8[kYUV12Size]);
// Read RGB24 reference data from file.
ReadRGB24Data(&rgb_bytes);
// Convert to I420.
media::ConvertRGB24ToYUV(rgb_bytes.get(),
yuv_converted_bytes.get(),
yuv_converted_bytes.get() + kSourceYSize,
yuv_converted_bytes.get() + kSourceYSize * 5 / 4,
kSourceWidth, kSourceHeight, // Dimensions
kSourceWidth * 3, // RGBStride
kSourceWidth, // YStride
kSourceWidth / 2); // UVStride
uint32 rgb_hash = DJB2Hash(yuv_converted_bytes.get(), kYUV12Size,
kDJB2HashSeed);
EXPECT_EQ(320824432u, rgb_hash);
}
TEST(YUVConvertTest, YUY2ToYUV) {
// Allocate all surfaces.
scoped_array<uint8> yuy_bytes;
scoped_array<uint8> yuv_converted_bytes(new uint8[kYUV12Size]);
// Read YUY reference data from file.
ReadYUY2Data(&yuy_bytes);
// Convert to I420.
media::ConvertYUY2ToYUV(yuy_bytes.get(),
yuv_converted_bytes.get(),
yuv_converted_bytes.get() + kSourceYSize,
yuv_converted_bytes.get() + kSourceYSize * 5 / 4,
kSourceWidth, kSourceHeight);
uint32 yuy_hash = DJB2Hash(yuv_converted_bytes.get(), kYUV12Size,
kDJB2HashSeed);
EXPECT_EQ(666823187u, yuy_hash);
}
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