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Unified Diff: webrtc/common_video/libyuv/scaler_unittest.cc

Issue 2020593002: Refactor scaling. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Trivial rebase. Created 4 years, 6 months ago
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Index: webrtc/common_video/libyuv/scaler_unittest.cc
diff --git a/webrtc/common_video/libyuv/scaler_unittest.cc b/webrtc/common_video/libyuv/scaler_unittest.cc
deleted file mode 100644
index 29a0a7403d676b34c12e0d68f3bb20b5eba0869a..0000000000000000000000000000000000000000
--- a/webrtc/common_video/libyuv/scaler_unittest.cc
+++ /dev/null
@@ -1,399 +0,0 @@
-/*
- * 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 "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/base/timeutils.h"
-#include "webrtc/common_video/libyuv/include/scaler.h"
-#include "webrtc/test/testsupport/fileutils.h"
-
-namespace webrtc {
-
-class TestScaler : public ::testing::Test {
- protected:
- TestScaler();
- virtual void SetUp();
- virtual void TearDown();
-
- void ScaleSequence(ScaleMethod method,
- FILE* source_file, std::string out_name,
- int src_width, int src_height,
- int dst_width, int dst_height);
- // Computes the sequence average PSNR between an input sequence in
- // |input_file| and an output sequence with filename |out_name|. |width| and
- // |height| are the frame sizes of both sequences.
- double ComputeAvgSequencePSNR(FILE* input_file, std::string out_name,
- int width, int height);
-
- Scaler test_scaler_;
- FILE* source_file_;
- VideoFrame test_frame_;
- const int width_;
- const int half_width_;
- const int height_;
- const int half_height_;
- const int size_y_;
- const int size_uv_;
- const size_t frame_length_;
-};
-
-TestScaler::TestScaler()
- : source_file_(NULL),
- width_(352),
- half_width_(width_ / 2),
- height_(288),
- half_height_(height_ / 2),
- size_y_(width_ * height_),
- size_uv_(half_width_ * half_height_),
- frame_length_(CalcBufferSize(kI420, width_, height_)) {
-}
-
-void TestScaler::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";
- test_frame_.CreateEmptyFrame(width_, height_,
- width_, half_width_, half_width_);
-}
-
-void TestScaler::TearDown() {
- if (source_file_ != NULL) {
- ASSERT_EQ(0, fclose(source_file_));
- }
- source_file_ = NULL;
-}
-
-TEST_F(TestScaler, ScaleWithoutSettingValues) {
- EXPECT_EQ(-2, test_scaler_.Scale(test_frame_, &test_frame_));
-}
-
-TEST_F(TestScaler, ScaleBadInitialValues) {
- EXPECT_EQ(-1, test_scaler_.Set(0, 288, 352, 288, kI420, kI420, kScalePoint));
- EXPECT_EQ(-1, test_scaler_.Set(704, 0, 352, 288, kI420, kI420, kScaleBox));
- EXPECT_EQ(-1, test_scaler_.Set(704, 576, 352, 0, kI420, kI420,
- kScaleBilinear));
- EXPECT_EQ(-1, test_scaler_.Set(704, 576, 0, 288, kI420, kI420, kScalePoint));
-}
-
-TEST_F(TestScaler, ScaleSendingNullSourcePointer) {
- VideoFrame null_src_frame;
- EXPECT_EQ(-1, test_scaler_.Scale(null_src_frame, &test_frame_));
-}
-
-TEST_F(TestScaler, ScaleSendingBufferTooSmall) {
- // Sending a buffer which is too small (should reallocate and update size)
- EXPECT_EQ(0, test_scaler_.Set(width_, height_,
- half_width_, half_height_,
- kI420, kI420,
- kScalePoint));
- VideoFrame test_frame2;
- std::unique_ptr<uint8_t[]> orig_buffer(new uint8_t[frame_length_]);
- EXPECT_GT(fread(orig_buffer.get(), 1, frame_length_, source_file_), 0U);
- test_frame_.CreateFrame(orig_buffer.get(),
- orig_buffer.get() + size_y_,
- orig_buffer.get() + size_y_ + size_uv_,
- width_, height_,
- width_, half_width_, half_width_,
- kVideoRotation_0);
- EXPECT_EQ(0, test_scaler_.Scale(test_frame_, &test_frame2));
- EXPECT_GT(width_ * height_, test_frame2.allocated_size(kYPlane));
- EXPECT_GT(size_uv_, test_frame2.allocated_size(kUPlane));
- EXPECT_GT(size_uv_, test_frame2.allocated_size(kVPlane));
- EXPECT_EQ(half_width_, test_frame2.width());
- EXPECT_EQ(half_height_, test_frame2.height());
-}
-
-// TODO(mikhal): Converge the test into one function that accepts the method.
-#if defined(WEBRTC_ANDROID)
-#define MAYBE_PointScaleTest DISABLED_PointScaleTest
-#else
-#define MAYBE_PointScaleTest PointScaleTest
-#endif
-TEST_F(TestScaler, MAYBE_PointScaleTest) {
- double avg_psnr;
- FILE* source_file2;
- ScaleMethod method = kScalePoint;
- std::string out_name = webrtc::test::OutputPath() +
- "LibYuvTest_PointScale_176_144.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- half_width_, half_height_);
- // Upsample back up and check PSNR.
- source_file2 = fopen(out_name.c_str(), "rb");
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_352_288_"
- "upfrom_176_144.yuv";
- ScaleSequence(method,
- source_file2, out_name,
- 176, 144,
- 352, 288);
- avg_psnr = ComputeAvgSequencePSNR(source_file_, out_name, width_, height_);
- printf("PSNR for scaling from: %d %d, down/up to: %d %d, and back to "
- "original size: %f \n", width_, height_, 176, 144, avg_psnr);
- // Average PSNR for lower bound in assert is ~0.1dB lower than the actual
- // average PSNR under same conditions.
- ASSERT_GT(avg_psnr, 27.9);
- ASSERT_EQ(0, fclose(source_file2));
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_320_240.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 320, 240);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_704_576.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- width_ * 2, height_ * 2);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_300_200.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 300, 200);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_400_300.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 400, 300);
- // Down-sample to odd size frame and scale back up.
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_282_231.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 282, 231);
- source_file2 = fopen(out_name.c_str(), "rb");
- out_name = webrtc::test::OutputPath() + "LibYuvTest_PointScale_352_288_"
- "upfrom_282_231.yuv";
- ScaleSequence(method,
- source_file2, out_name,
- 282, 231,
- 352, 288);
- avg_psnr = ComputeAvgSequencePSNR(source_file_, out_name, width_, height_);
- printf("PSNR for scaling from: %d %d, down/up to: %d %d, and back to "
- "original size: %f \n", width_, height_, 282, 231, avg_psnr);
- // Average PSNR for lower bound in assert is ~0.1dB lower than the actual
- // average PSNR under same conditions.
- ASSERT_GT(avg_psnr, 25.8);
- ASSERT_EQ(0, fclose(source_file2));
-}
-
-#if defined(WEBRTC_ANDROID)
-#define MAYBE_BilinearScaleTest DISABLED_BiLinearScaleTest
-#else
-#define MAYBE_BilinearScaleTest BiLinearScaleTest
-#endif
-TEST_F(TestScaler, MAYBE_BiLinearScaleTest) {
- double avg_psnr;
- FILE* source_file2;
- ScaleMethod method = kScaleBilinear;
- std::string out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BilinearScale_176_144.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- width_ / 2, height_ / 2);
- // Up-sample back up and check PSNR.
- source_file2 = fopen(out_name.c_str(), "rb");
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BilinearScale_352_288_"
- "upfrom_176_144.yuv";
- ScaleSequence(method,
- source_file2, out_name,
- 176, 144,
- 352, 288);
- avg_psnr = ComputeAvgSequencePSNR(source_file_, out_name, width_, height_);
- printf("PSNR for scaling from: %d %d, down/up to: %d %d, and back to "
- "original size: %f \n", width_, height_, 176, 144, avg_psnr);
- // Average PSNR for lower bound in assert is ~0.1dB lower than the actual
- // average PSNR under same conditions.
- ASSERT_GT(avg_psnr, 27.5);
- ComputeAvgSequencePSNR(source_file_, out_name, width_, height_);
- ASSERT_EQ(0, fclose(source_file2));
- out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BilinearScale_320_240.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 320, 240);
- out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BilinearScale_704_576.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- width_ * 2, height_ * 2);
- out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BilinearScale_300_200.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 300, 200);
- out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BilinearScale_400_300.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 400, 300);
-}
-
-#if defined(WEBRTC_ANDROID)
-#define MAYBE_BoxScaleTest DISABLED_BoxScaleTest
-#else
-#define MAYBE_BoxScaleTest BoxScaleTest
-#endif
-TEST_F(TestScaler, MAYBE_BoxScaleTest) {
- double avg_psnr;
- FILE* source_file2;
- ScaleMethod method = kScaleBox;
- std::string out_name = webrtc::test::OutputPath() +
- "LibYuvTest_BoxScale_176_144.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- width_ / 2, height_ / 2);
- // Up-sample back up and check PSNR.
- source_file2 = fopen(out_name.c_str(), "rb");
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BoxScale_352_288_"
- "upfrom_176_144.yuv";
- ScaleSequence(method,
- source_file2, out_name,
- 176, 144,
- 352, 288);
- avg_psnr = ComputeAvgSequencePSNR(source_file_, out_name, width_, height_);
- printf("PSNR for scaling from: %d %d, down/up to: %d %d, and back to "
- "original size: %f \n", width_, height_, 176, 144, avg_psnr);
- // Average PSNR for lower bound in assert is ~0.1dB lower than the actual
- // average PSNR under same conditions.
- ASSERT_GT(avg_psnr, 27.5);
- ASSERT_EQ(0, fclose(source_file2));
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BoxScale_320_240.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 320, 240);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BoxScale_704_576.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- width_ * 2, height_ * 2);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BoxScale_300_200.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 300, 200);
- out_name = webrtc::test::OutputPath() + "LibYuvTest_BoxScale_400_300.yuv";
- ScaleSequence(method,
- source_file_, out_name,
- width_, height_,
- 400, 300);
-}
-
-double TestScaler::ComputeAvgSequencePSNR(FILE* input_file,
- std::string out_name,
- int width, int height) {
- FILE* output_file;
- output_file = fopen(out_name.c_str(), "rb");
- assert(output_file != NULL);
- rewind(input_file);
- rewind(output_file);
-
- size_t required_size = CalcBufferSize(kI420, width, height);
- uint8_t* input_buffer = new uint8_t[required_size];
- uint8_t* output_buffer = new uint8_t[required_size];
-
- int frame_count = 0;
- double avg_psnr = 0;
- VideoFrame in_frame, out_frame;
- const int half_width = (width + 1) / 2;
- in_frame.CreateEmptyFrame(width, height, width, half_width, half_width);
- out_frame.CreateEmptyFrame(width, height, width, half_width, half_width);
- while (feof(input_file) == 0) {
- if (fread(input_buffer, 1, required_size, input_file) != required_size) {
- break;
- }
- if (fread(output_buffer, 1, required_size, output_file) != required_size) {
- break;
- }
- frame_count++;
- EXPECT_EQ(0, ConvertToI420(kI420, input_buffer, 0, 0, width, height,
- required_size, kVideoRotation_0, &in_frame));
- EXPECT_EQ(0, ConvertToI420(kI420, output_buffer, 0, 0, width, height,
- required_size, kVideoRotation_0, &out_frame));
- double psnr = I420PSNR(&in_frame, &out_frame);
- avg_psnr += psnr;
- }
- avg_psnr = avg_psnr / frame_count;
- assert(0 == fclose(output_file));
- delete [] input_buffer;
- delete [] output_buffer;
- return avg_psnr;
-}
-
-// TODO(mikhal): Move part to a separate scale test.
-void TestScaler::ScaleSequence(ScaleMethod method,
- FILE* source_file, std::string out_name,
- int src_width, int src_height,
- int dst_width, int dst_height) {
- FILE* output_file;
- EXPECT_EQ(0, test_scaler_.Set(src_width, src_height,
- dst_width, dst_height,
- kI420, kI420, method));
-
- output_file = fopen(out_name.c_str(), "wb");
- ASSERT_TRUE(output_file != NULL);
-
- rewind(source_file);
-
- VideoFrame input_frame;
- VideoFrame output_frame;
- int64_t start_clock, total_clock;
- total_clock = 0;
- int frame_count = 0;
- size_t src_required_size = CalcBufferSize(kI420, src_width, src_height);
- std::unique_ptr<uint8_t[]> frame_buffer(new uint8_t[src_required_size]);
- int size_y = src_width * src_height;
- int size_uv = ((src_width + 1) / 2) * ((src_height + 1) / 2);
-
- // Running through entire sequence.
- while (feof(source_file) == 0) {
- if (fread(frame_buffer.get(), 1, src_required_size, source_file) !=
- src_required_size)
- break;
-
- input_frame.CreateFrame(frame_buffer.get(),
- frame_buffer.get() + size_y,
- frame_buffer.get() + size_y + size_uv,
- src_width, src_height,
- src_width, (src_width + 1) / 2,
- (src_width + 1) / 2,
- kVideoRotation_0);
-
- start_clock = rtc::TimeMillis();
- EXPECT_EQ(0, test_scaler_.Scale(input_frame, &output_frame));
- total_clock += rtc::TimeMillis() - start_clock;
- if (PrintVideoFrame(output_frame, output_file) < 0) {
- return;
- }
- frame_count++;
- }
-
- if (frame_count) {
- printf("Scaling[%d %d] => [%d %d]: ",
- src_width, src_height, dst_width, dst_height);
- printf("Average time per frame[ms]: %.2lf\n",
- (static_cast<double>(total_clock) / frame_count));
- }
- ASSERT_EQ(0, fclose(output_file));
-}
-
-} // namespace webrtc
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