ref: d55682c2aadbca664727fde886d42d39f7cbb5cd
dir: libvpx/test/y4m_test.cc
/*
* Copyright (c) 2012 The WebM 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 <string>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "./y4menc.h"
#include "test/md5_helper.h"
#include "test/util.h"
#include "test/y4m_video_source.h"
namespace {
using std::string;
static const unsigned int kWidth = 160;
static const unsigned int kHeight = 90;
static const unsigned int kFrames = 10;
struct Y4mTestParam {
const char *filename;
unsigned int bit_depth;
vpx_img_fmt format;
const char *md5raw;
};
const Y4mTestParam kY4mTestVectors[] = {
{ "park_joy_90p_8_420.y4m", 8, VPX_IMG_FMT_I420,
"e5406275b9fc6bb3436c31d4a05c1cab" },
{ "park_joy_90p_8_422.y4m", 8, VPX_IMG_FMT_I422,
"284a47a47133b12884ec3a14e959a0b6" },
{ "park_joy_90p_8_444.y4m", 8, VPX_IMG_FMT_I444,
"90517ff33843d85de712fd4fe60dbed0" },
{ "park_joy_90p_10_420_20f.y4m", 10, VPX_IMG_FMT_I42016,
"2f56ab9809269f074df7e3daf1ce0be6" },
{ "park_joy_90p_10_422_20f.y4m", 10, VPX_IMG_FMT_I42216,
"1b5c73d2e8e8c4e02dc4889ecac41c83" },
{ "park_joy_90p_10_444_20f.y4m", 10, VPX_IMG_FMT_I44416,
"ec4ab5be53195c5b838d1d19e1bc2674" },
{ "park_joy_90p_12_420_20f.y4m", 12, VPX_IMG_FMT_I42016,
"3370856c8ddebbd1f9bb2e66f97677f4" },
{ "park_joy_90p_12_422_20f.y4m", 12, VPX_IMG_FMT_I42216,
"4eab364318dd8201acbb182e43bd4966" },
{ "park_joy_90p_12_444_20f.y4m", 12, VPX_IMG_FMT_I44416,
"f189dfbbd92119fc8e5f211a550166be" },
};
static void write_image_file(const vpx_image_t *img, FILE *file) {
int plane, y;
for (plane = 0; plane < 3; ++plane) {
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int bytes_per_sample = (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
const int h =
(plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift
: img->d_h);
const int w =
(plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift
: img->d_w);
for (y = 0; y < h; ++y) {
fwrite(buf, bytes_per_sample, w, file);
buf += stride;
}
}
}
class Y4mVideoSourceTest : public ::testing::TestWithParam<Y4mTestParam>,
public ::libvpx_test::Y4mVideoSource {
protected:
Y4mVideoSourceTest() : Y4mVideoSource("", 0, 0) {}
virtual ~Y4mVideoSourceTest() { CloseSource(); }
virtual void Init(const std::string &file_name, int limit) {
file_name_ = file_name;
start_ = 0;
limit_ = limit;
frame_ = 0;
Begin();
}
// Checks y4m header information
void HeaderChecks(unsigned int bit_depth, vpx_img_fmt_t fmt) {
ASSERT_NE(input_file_, nullptr);
ASSERT_EQ(y4m_.pic_w, (int)kWidth);
ASSERT_EQ(y4m_.pic_h, (int)kHeight);
ASSERT_EQ(img()->d_w, kWidth);
ASSERT_EQ(img()->d_h, kHeight);
ASSERT_EQ(y4m_.bit_depth, bit_depth);
ASSERT_EQ(y4m_.vpx_fmt, fmt);
if (fmt == VPX_IMG_FMT_I420 || fmt == VPX_IMG_FMT_I42016) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3 / 2);
ASSERT_EQ(img()->x_chroma_shift, 1U);
ASSERT_EQ(img()->y_chroma_shift, 1U);
}
if (fmt == VPX_IMG_FMT_I422 || fmt == VPX_IMG_FMT_I42216) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 2);
ASSERT_EQ(img()->x_chroma_shift, 1U);
ASSERT_EQ(img()->y_chroma_shift, 0U);
}
if (fmt == VPX_IMG_FMT_I444 || fmt == VPX_IMG_FMT_I44416) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3);
ASSERT_EQ(img()->x_chroma_shift, 0U);
ASSERT_EQ(img()->y_chroma_shift, 0U);
}
}
// Checks MD5 of the raw frame data
void Md5Check(const string &expected_md5) {
ASSERT_NE(input_file_, nullptr);
libvpx_test::MD5 md5;
for (unsigned int i = start_; i < limit_; i++) {
md5.Add(img());
Next();
}
ASSERT_EQ(string(md5.Get()), expected_md5);
}
};
TEST_P(Y4mVideoSourceTest, SourceTest) {
const Y4mTestParam t = GetParam();
Init(t.filename, kFrames);
HeaderChecks(t.bit_depth, t.format);
Md5Check(t.md5raw);
}
INSTANTIATE_TEST_SUITE_P(C, Y4mVideoSourceTest,
::testing::ValuesIn(kY4mTestVectors));
class Y4mVideoWriteTest : public Y4mVideoSourceTest {
protected:
Y4mVideoWriteTest() : tmpfile_(nullptr) {}
virtual ~Y4mVideoWriteTest() {
delete tmpfile_;
input_file_ = nullptr;
}
void ReplaceInputFile(FILE *input_file) {
CloseSource();
frame_ = 0;
input_file_ = input_file;
rewind(input_file_);
ReadSourceToStart();
}
// Writes out a y4m file and then reads it back
void WriteY4mAndReadBack() {
ASSERT_NE(input_file_, nullptr);
char buf[Y4M_BUFFER_SIZE] = { 0 };
const struct VpxRational framerate = { y4m_.fps_n, y4m_.fps_d };
tmpfile_ = new libvpx_test::TempOutFile;
ASSERT_NE(tmpfile_->file(), nullptr);
y4m_write_file_header(buf, sizeof(buf), kWidth, kHeight, &framerate,
y4m_.vpx_fmt, y4m_.bit_depth);
fputs(buf, tmpfile_->file());
for (unsigned int i = start_; i < limit_; i++) {
y4m_write_frame_header(buf, sizeof(buf));
fputs(buf, tmpfile_->file());
write_image_file(img(), tmpfile_->file());
Next();
}
ReplaceInputFile(tmpfile_->file());
}
virtual void Init(const std::string &file_name, int limit) {
Y4mVideoSourceTest::Init(file_name, limit);
WriteY4mAndReadBack();
}
libvpx_test::TempOutFile *tmpfile_;
};
TEST_P(Y4mVideoWriteTest, WriteTest) {
const Y4mTestParam t = GetParam();
Init(t.filename, kFrames);
HeaderChecks(t.bit_depth, t.format);
Md5Check(t.md5raw);
}
INSTANTIATE_TEST_SUITE_P(C, Y4mVideoWriteTest,
::testing::ValuesIn(kY4mTestVectors));
} // namespace