| /* |
| * Copyright (c) 2012 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 <math.h> |
| #include <string.h> |
| |
| #include <memory> |
| |
| #include "absl/memory/memory.h" |
| #include "api/video/i420_buffer.h" |
| #include "api/video/video_frame.h" |
| #include "common_video/libyuv/include/webrtc_libyuv.h" |
| #include "test/frame_utils.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| #include "test/testsupport/file_utils.h" |
| #include "third_party/libyuv/include/libyuv.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| void Calc16ByteAlignedStride(int width, int* stride_y, int* stride_uv) { |
| *stride_y = 16 * ((width + 15) / 16); |
| *stride_uv = 16 * ((width + 31) / 32); |
| } |
| |
| } // Anonymous namespace |
| |
| class TestLibYuv : public ::testing::Test { |
| protected: |
| TestLibYuv(); |
| void SetUp() override; |
| void TearDown() override; |
| |
| FILE* source_file_; |
| std::unique_ptr<VideoFrame> orig_frame_; |
| const int width_; |
| const int height_; |
| const int size_y_; |
| const int size_uv_; |
| const size_t frame_length_; |
| }; |
| |
| TestLibYuv::TestLibYuv() |
| : source_file_(NULL), |
| orig_frame_(), |
| width_(352), |
| height_(288), |
| size_y_(width_ * height_), |
| size_uv_(((width_ + 1) / 2) * ((height_ + 1) / 2)), |
| frame_length_(CalcBufferSize(VideoType::kI420, 352, 288)) {} |
| |
| void TestLibYuv::SetUp() { |
| const std::string input_file_name = |
| webrtc::test::ResourcePath("foreman_cif", "yuv"); |
| source_file_ = fopen(input_file_name.c_str(), "rb"); |
| ASSERT_TRUE(source_file_ != NULL) |
| << "Cannot read file: " << input_file_name << "\n"; |
| |
| rtc::scoped_refptr<I420BufferInterface> buffer( |
| test::ReadI420Buffer(width_, height_, source_file_)); |
| |
| orig_frame_ = |
| absl::make_unique<VideoFrame>(VideoFrame::Builder() |
| .set_video_frame_buffer(buffer) |
| .set_rotation(webrtc::kVideoRotation_0) |
| .set_timestamp_us(0) |
| .build()); |
| } |
| |
| void TestLibYuv::TearDown() { |
| if (source_file_ != NULL) { |
| ASSERT_EQ(0, fclose(source_file_)); |
| } |
| source_file_ = NULL; |
| } |
| |
| TEST_F(TestLibYuv, ConvertSanityTest) { |
| // TODO(mikhal) |
| } |
| |
| TEST_F(TestLibYuv, ConvertTest) { |
| // Reading YUV frame - testing on the first frame of the foreman sequence |
| int j = 0; |
| std::string output_file_name = |
| webrtc::test::OutputPath() + "LibYuvTest_conversion.yuv"; |
| FILE* output_file = fopen(output_file_name.c_str(), "wb"); |
| ASSERT_TRUE(output_file != NULL); |
| |
| double psnr = 0.0; |
| |
| rtc::scoped_refptr<I420Buffer> res_i420_buffer = |
| I420Buffer::Create(width_, height_); |
| |
| printf("\nConvert #%d I420 <-> I420 \n", j); |
| std::unique_ptr<uint8_t[]> out_i420_buffer(new uint8_t[frame_length_]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kI420, 0, |
| out_i420_buffer.get())); |
| int y_size = width_ * height_; |
| int u_size = res_i420_buffer->ChromaWidth() * res_i420_buffer->ChromaHeight(); |
| int ret = libyuv::I420Copy( |
| out_i420_buffer.get(), width_, out_i420_buffer.get() + y_size, |
| width_ >> 1, out_i420_buffer.get() + y_size + u_size, width_ >> 1, |
| res_i420_buffer.get()->MutableDataY(), res_i420_buffer.get()->StrideY(), |
| res_i420_buffer.get()->MutableDataU(), res_i420_buffer.get()->StrideU(), |
| res_i420_buffer.get()->MutableDataV(), res_i420_buffer.get()->StrideV(), |
| width_, height_); |
| EXPECT_EQ(0, ret); |
| |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| EXPECT_EQ(48.0, psnr); |
| j++; |
| |
| printf("\nConvert #%d I420 <-> RGB24\n", j); |
| std::unique_ptr<uint8_t[]> res_rgb_buffer2(new uint8_t[width_ * height_ * 3]); |
| // Align the stride values for the output frame. |
| int stride_y = 0; |
| int stride_uv = 0; |
| Calc16ByteAlignedStride(width_, &stride_y, &stride_uv); |
| res_i420_buffer = |
| I420Buffer::Create(width_, height_, stride_y, stride_uv, stride_uv); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kRGB24, 0, |
| res_rgb_buffer2.get())); |
| |
| ret = libyuv::ConvertToI420( |
| res_rgb_buffer2.get(), 0, res_i420_buffer.get()->MutableDataY(), |
| res_i420_buffer.get()->StrideY(), res_i420_buffer.get()->MutableDataU(), |
| res_i420_buffer.get()->StrideU(), res_i420_buffer.get()->MutableDataV(), |
| res_i420_buffer.get()->StrideV(), 0, 0, width_, height_, |
| res_i420_buffer->width(), res_i420_buffer->height(), libyuv::kRotate0, |
| ConvertVideoType(VideoType::kRGB24)); |
| |
| EXPECT_EQ(0, ret); |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| |
| // Optimization Speed- quality trade-off => 45 dB only (platform dependant). |
| EXPECT_GT(ceil(psnr), 44); |
| j++; |
| |
| printf("\nConvert #%d I420 <-> UYVY\n", j); |
| std::unique_ptr<uint8_t[]> out_uyvy_buffer(new uint8_t[width_ * height_ * 2]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kUYVY, 0, |
| out_uyvy_buffer.get())); |
| |
| ret = libyuv::ConvertToI420( |
| out_uyvy_buffer.get(), 0, res_i420_buffer.get()->MutableDataY(), |
| res_i420_buffer.get()->StrideY(), res_i420_buffer.get()->MutableDataU(), |
| res_i420_buffer.get()->StrideU(), res_i420_buffer.get()->MutableDataV(), |
| res_i420_buffer.get()->StrideV(), 0, 0, width_, height_, |
| res_i420_buffer->width(), res_i420_buffer->height(), libyuv::kRotate0, |
| ConvertVideoType(VideoType::kUYVY)); |
| |
| EXPECT_EQ(0, ret); |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| EXPECT_EQ(48.0, psnr); |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| j++; |
| |
| printf("\nConvert #%d I420 <-> YUY2\n", j); |
| std::unique_ptr<uint8_t[]> out_yuy2_buffer(new uint8_t[width_ * height_ * 2]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kYUY2, 0, |
| out_yuy2_buffer.get())); |
| |
| ret = libyuv::ConvertToI420( |
| out_yuy2_buffer.get(), 0, res_i420_buffer.get()->MutableDataY(), |
| res_i420_buffer.get()->StrideY(), res_i420_buffer.get()->MutableDataU(), |
| res_i420_buffer.get()->StrideU(), res_i420_buffer.get()->MutableDataV(), |
| res_i420_buffer.get()->StrideV(), 0, 0, width_, height_, |
| res_i420_buffer->width(), res_i420_buffer->height(), libyuv::kRotate0, |
| ConvertVideoType(VideoType::kYUY2)); |
| |
| EXPECT_EQ(0, ret); |
| |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| EXPECT_EQ(48.0, psnr); |
| |
| printf("\nConvert #%d I420 <-> RGB565\n", j); |
| std::unique_ptr<uint8_t[]> out_rgb565_buffer( |
| new uint8_t[width_ * height_ * 2]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kRGB565, 0, |
| out_rgb565_buffer.get())); |
| |
| ret = libyuv::ConvertToI420( |
| out_rgb565_buffer.get(), 0, res_i420_buffer.get()->MutableDataY(), |
| res_i420_buffer.get()->StrideY(), res_i420_buffer.get()->MutableDataU(), |
| res_i420_buffer.get()->StrideU(), res_i420_buffer.get()->MutableDataV(), |
| res_i420_buffer.get()->StrideV(), 0, 0, width_, height_, |
| res_i420_buffer->width(), res_i420_buffer->height(), libyuv::kRotate0, |
| ConvertVideoType(VideoType::kRGB565)); |
| |
| EXPECT_EQ(0, ret); |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| j++; |
| |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| // TODO(leozwang) Investigate the right psnr should be set for I420ToRGB565, |
| // Another example is I420ToRGB24, the psnr is 44 |
| // TODO(mikhal): Add psnr for RGB565, 1555, 4444, convert to ARGB. |
| EXPECT_GT(ceil(psnr), 40); |
| |
| printf("\nConvert #%d I420 <-> ARGB8888\n", j); |
| std::unique_ptr<uint8_t[]> out_argb8888_buffer( |
| new uint8_t[width_ * height_ * 4]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kARGB, 0, |
| out_argb8888_buffer.get())); |
| |
| ret = libyuv::ConvertToI420( |
| out_argb8888_buffer.get(), 0, res_i420_buffer.get()->MutableDataY(), |
| res_i420_buffer.get()->StrideY(), res_i420_buffer.get()->MutableDataU(), |
| res_i420_buffer.get()->StrideU(), res_i420_buffer.get()->MutableDataV(), |
| res_i420_buffer.get()->StrideV(), 0, 0, width_, height_, |
| res_i420_buffer->width(), res_i420_buffer->height(), libyuv::kRotate0, |
| ConvertVideoType(VideoType::kARGB)); |
| |
| EXPECT_EQ(0, ret); |
| |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| // TODO(leozwang) Investigate the right psnr should be set for |
| // I420ToARGB8888, |
| EXPECT_GT(ceil(psnr), 42); |
| |
| ASSERT_EQ(0, fclose(output_file)); |
| } |
| |
| TEST_F(TestLibYuv, ConvertAlignedFrame) { |
| // Reading YUV frame - testing on the first frame of the foreman sequence |
| std::string output_file_name = |
| webrtc::test::OutputPath() + "LibYuvTest_conversion.yuv"; |
| FILE* output_file = fopen(output_file_name.c_str(), "wb"); |
| ASSERT_TRUE(output_file != NULL); |
| |
| double psnr = 0.0; |
| |
| int stride_y = 0; |
| int stride_uv = 0; |
| Calc16ByteAlignedStride(width_, &stride_y, &stride_uv); |
| |
| rtc::scoped_refptr<I420Buffer> res_i420_buffer = |
| I420Buffer::Create(width_, height_, stride_y, stride_uv, stride_uv); |
| std::unique_ptr<uint8_t[]> out_i420_buffer(new uint8_t[frame_length_]); |
| EXPECT_EQ(0, ConvertFromI420(*orig_frame_, VideoType::kI420, 0, |
| out_i420_buffer.get())); |
| int y_size = width_ * height_; |
| int u_size = res_i420_buffer->ChromaWidth() * res_i420_buffer->ChromaHeight(); |
| int ret = libyuv::I420Copy( |
| out_i420_buffer.get(), width_, out_i420_buffer.get() + y_size, |
| width_ >> 1, out_i420_buffer.get() + y_size + u_size, width_ >> 1, |
| res_i420_buffer.get()->MutableDataY(), res_i420_buffer.get()->StrideY(), |
| res_i420_buffer.get()->MutableDataU(), res_i420_buffer.get()->StrideU(), |
| res_i420_buffer.get()->MutableDataV(), res_i420_buffer.get()->StrideV(), |
| width_, height_); |
| |
| EXPECT_EQ(0, ret); |
| |
| if (PrintVideoFrame(*res_i420_buffer, output_file) < 0) { |
| return; |
| } |
| psnr = |
| I420PSNR(*orig_frame_->video_frame_buffer()->GetI420(), *res_i420_buffer); |
| EXPECT_EQ(48.0, psnr); |
| } |
| |
| static uint8_t Average(int a, int b, int c, int d) { |
| return (a + b + c + d + 2) / 4; |
| } |
| |
| TEST_F(TestLibYuv, NV12Scale2x2to2x2) { |
| const std::vector<uint8_t> src_y = {0, 1, 2, 3}; |
| const std::vector<uint8_t> src_uv = {0, 1}; |
| std::vector<uint8_t> dst_y(4); |
| std::vector<uint8_t> dst_uv(2); |
| |
| uint8_t* tmp_buffer = nullptr; |
| |
| NV12Scale(tmp_buffer, src_y.data(), 2, src_uv.data(), 2, 2, 2, dst_y.data(), |
| 2, dst_uv.data(), 2, 2, 2); |
| |
| EXPECT_THAT(dst_y, ::testing::ContainerEq(src_y)); |
| EXPECT_THAT(dst_uv, ::testing::ContainerEq(src_uv)); |
| } |
| |
| TEST_F(TestLibYuv, NV12Scale4x4to2x2) { |
| const uint8_t src_y[] = {0, 1, 2, 3, 4, 5, 6, 7, |
| 8, 9, 10, 11, 12, 13, 14, 15}; |
| const uint8_t src_uv[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
| std::vector<uint8_t> dst_y(4); |
| std::vector<uint8_t> dst_uv(2); |
| |
| std::vector<uint8_t> tmp_buffer; |
| const int src_chroma_width = (4 + 1) / 2; |
| const int src_chroma_height = (4 + 1) / 2; |
| const int dst_chroma_width = (2 + 1) / 2; |
| const int dst_chroma_height = (2 + 1) / 2; |
| tmp_buffer.resize(src_chroma_width * src_chroma_height * 2 + |
| dst_chroma_width * dst_chroma_height * 2); |
| tmp_buffer.shrink_to_fit(); |
| |
| NV12Scale(tmp_buffer.data(), src_y, 4, src_uv, 4, 4, 4, dst_y.data(), 2, |
| dst_uv.data(), 2, 2, 2); |
| |
| EXPECT_THAT(dst_y, ::testing::ElementsAre( |
| Average(0, 1, 4, 5), Average(2, 3, 6, 7), |
| Average(8, 9, 12, 13), Average(10, 11, 14, 15))); |
| EXPECT_THAT(dst_uv, |
| ::testing::ElementsAre(Average(0, 2, 4, 6), Average(1, 3, 5, 7))); |
| } |
| |
| } // namespace webrtc |