| /* |
| * 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 "webrtc/modules/video_processing/main/test/unit_test/video_processing_unittest.h" |
| |
| #include <string> |
| |
| #include <gflags/gflags.h> |
| #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h" |
| #include "webrtc/system_wrappers/include/tick_util.h" |
| #include "webrtc/test/testsupport/fileutils.h" |
| #include "webrtc/test/testsupport/gtest_disable.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| // Define command line flag 'gen_files' (default value: false). |
| DEFINE_bool(gen_files, false, "Output files for visual inspection."); |
| |
| } // namespace |
| |
| static void PreprocessFrameAndVerify(const VideoFrame& source, |
| int target_width, |
| int target_height, |
| VideoProcessingModule* vpm, |
| VideoFrame** out_frame); |
| static void CropFrame(const uint8_t* source_data, |
| int source_width, |
| int source_height, |
| int offset_x, |
| int offset_y, |
| int cropped_width, |
| int cropped_height, |
| VideoFrame* cropped_frame); |
| // The |source_data| is cropped and scaled to |target_width| x |target_height|, |
| // and then scaled back to the expected cropped size. |expected_psnr| is used to |
| // verify basic quality, and is set to be ~0.1/0.05dB lower than actual PSNR |
| // verified under the same conditions. |
| static void TestSize(const VideoFrame& source_frame, |
| const VideoFrame& cropped_source_frame, |
| int target_width, |
| int target_height, |
| double expected_psnr, |
| VideoProcessingModule* vpm); |
| static bool CompareFrames(const webrtc::VideoFrame& frame1, |
| const webrtc::VideoFrame& frame2); |
| static void WriteProcessedFrameForVisualInspection(const VideoFrame& source, |
| const VideoFrame& processed); |
| |
| VideoProcessingModuleTest::VideoProcessingModuleTest() |
| : vpm_(NULL), |
| source_file_(NULL), |
| width_(352), |
| half_width_((width_ + 1) / 2), |
| height_(288), |
| size_y_(width_ * height_), |
| size_uv_(half_width_ * ((height_ + 1) / 2)), |
| frame_length_(CalcBufferSize(kI420, width_, height_)) {} |
| |
| void VideoProcessingModuleTest::SetUp() { |
| vpm_ = VideoProcessingModule::Create(); |
| ASSERT_TRUE(vpm_ != NULL); |
| |
| ASSERT_EQ(0, video_frame_.CreateEmptyFrame(width_, height_, width_, |
| half_width_, half_width_)); |
| // Clear video frame so DrMemory/Valgrind will allow reads of the buffer. |
| memset(video_frame_.buffer(kYPlane), 0, video_frame_.allocated_size(kYPlane)); |
| memset(video_frame_.buffer(kUPlane), 0, video_frame_.allocated_size(kUPlane)); |
| memset(video_frame_.buffer(kVPlane), 0, video_frame_.allocated_size(kVPlane)); |
| const std::string video_file = |
| webrtc::test::ResourcePath("foreman_cif", "yuv"); |
| source_file_ = fopen(video_file.c_str(),"rb"); |
| ASSERT_TRUE(source_file_ != NULL) << |
| "Cannot read source file: " + video_file + "\n"; |
| } |
| |
| void VideoProcessingModuleTest::TearDown() { |
| if (source_file_ != NULL) { |
| ASSERT_EQ(0, fclose(source_file_)); |
| } |
| source_file_ = NULL; |
| |
| if (vpm_ != NULL) { |
| VideoProcessingModule::Destroy(vpm_); |
| } |
| vpm_ = NULL; |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(HandleNullBuffer)) { |
| // TODO(mikhal/stefan): Do we need this one? |
| VideoProcessingModule::FrameStats stats; |
| // Video frame with unallocated buffer. |
| VideoFrame videoFrame; |
| |
| EXPECT_EQ(-3, vpm_->GetFrameStats(&stats, videoFrame)); |
| |
| EXPECT_EQ(-1, vpm_->Deflickering(&videoFrame, &stats)); |
| |
| EXPECT_EQ(-3, vpm_->BrightnessDetection(videoFrame, stats)); |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(HandleBadStats)) { |
| VideoProcessingModule::FrameStats stats; |
| rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]); |
| ASSERT_EQ(frame_length_, fread(video_buffer.get(), 1, frame_length_, |
| source_file_)); |
| EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_, |
| 0, kVideoRotation_0, &video_frame_)); |
| |
| EXPECT_EQ(-1, vpm_->Deflickering(&video_frame_, &stats)); |
| |
| EXPECT_EQ(-3, vpm_->BrightnessDetection(video_frame_, stats)); |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(IdenticalResultsAfterReset)) { |
| VideoFrame video_frame2; |
| VideoProcessingModule::FrameStats stats; |
| // Only testing non-static functions here. |
| rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]); |
| ASSERT_EQ(frame_length_, fread(video_buffer.get(), 1, frame_length_, |
| source_file_)); |
| EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_, |
| 0, kVideoRotation_0, &video_frame_)); |
| ASSERT_EQ(0, vpm_->GetFrameStats(&stats, video_frame_)); |
| ASSERT_EQ(0, video_frame2.CopyFrame(video_frame_)); |
| ASSERT_EQ(0, vpm_->Deflickering(&video_frame_, &stats)); |
| vpm_->Reset(); |
| // Retrieve frame stats again in case Deflickering() has zeroed them. |
| ASSERT_EQ(0, vpm_->GetFrameStats(&stats, video_frame2)); |
| ASSERT_EQ(0, vpm_->Deflickering(&video_frame2, &stats)); |
| EXPECT_TRUE(CompareFrames(video_frame_, video_frame2)); |
| |
| ASSERT_EQ(frame_length_, fread(video_buffer.get(), 1, frame_length_, |
| source_file_)); |
| EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_, |
| 0, kVideoRotation_0, &video_frame_)); |
| ASSERT_EQ(0, vpm_->GetFrameStats(&stats, video_frame_)); |
| video_frame2.CopyFrame(video_frame_); |
| ASSERT_EQ(0, vpm_->BrightnessDetection(video_frame_, stats)); |
| vpm_->Reset(); |
| ASSERT_EQ(0, vpm_->BrightnessDetection(video_frame2, stats)); |
| EXPECT_TRUE(CompareFrames(video_frame_, video_frame2)); |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(FrameStats)) { |
| VideoProcessingModule::FrameStats stats; |
| rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]); |
| ASSERT_EQ(frame_length_, fread(video_buffer.get(), 1, frame_length_, |
| source_file_)); |
| EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_, |
| 0, kVideoRotation_0, &video_frame_)); |
| |
| EXPECT_FALSE(vpm_->ValidFrameStats(stats)); |
| EXPECT_EQ(0, vpm_->GetFrameStats(&stats, video_frame_)); |
| EXPECT_TRUE(vpm_->ValidFrameStats(stats)); |
| |
| printf("\nFrameStats\n"); |
| printf("mean: %u\nnum_pixels: %u\nsubSamplWidth: " |
| "%u\nsumSamplHeight: %u\nsum: %u\n\n", |
| static_cast<unsigned int>(stats.mean), |
| static_cast<unsigned int>(stats.num_pixels), |
| static_cast<unsigned int>(stats.subSamplHeight), |
| static_cast<unsigned int>(stats.subSamplWidth), |
| static_cast<unsigned int>(stats.sum)); |
| |
| vpm_->ClearFrameStats(&stats); |
| EXPECT_FALSE(vpm_->ValidFrameStats(stats)); |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(PreprocessorLogic)) { |
| // Disable temporal sampling (frame dropping). |
| vpm_->EnableTemporalDecimation(false); |
| int resolution = 100; |
| EXPECT_EQ(VPM_OK, vpm_->SetTargetResolution(resolution, resolution, 15)); |
| EXPECT_EQ(VPM_OK, vpm_->SetTargetResolution(resolution, resolution, 30)); |
| // Disable spatial sampling. |
| vpm_->SetInputFrameResampleMode(kNoRescaling); |
| EXPECT_EQ(VPM_OK, vpm_->SetTargetResolution(resolution, resolution, 30)); |
| VideoFrame* out_frame = NULL; |
| // Set rescaling => output frame != NULL. |
| vpm_->SetInputFrameResampleMode(kFastRescaling); |
| PreprocessFrameAndVerify(video_frame_, resolution, resolution, vpm_, |
| &out_frame); |
| // No rescaling=> output frame = NULL. |
| vpm_->SetInputFrameResampleMode(kNoRescaling); |
| EXPECT_EQ(VPM_OK, vpm_->PreprocessFrame(video_frame_, &out_frame)); |
| EXPECT_TRUE(out_frame == NULL); |
| } |
| |
| TEST_F(VideoProcessingModuleTest, DISABLED_ON_IOS(Resampler)) { |
| enum { NumRuns = 1 }; |
| |
| int64_t min_runtime = 0; |
| int64_t total_runtime = 0; |
| |
| rewind(source_file_); |
| ASSERT_TRUE(source_file_ != NULL) << |
| "Cannot read input file \n"; |
| |
| // CA not needed here |
| vpm_->EnableContentAnalysis(false); |
| // no temporal decimation |
| vpm_->EnableTemporalDecimation(false); |
| |
| // Reading test frame |
| rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]); |
| ASSERT_EQ(frame_length_, fread(video_buffer.get(), 1, frame_length_, |
| source_file_)); |
| // Using ConvertToI420 to add stride to the image. |
| EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, width_, height_, |
| 0, kVideoRotation_0, &video_frame_)); |
| // Cropped source frame that will contain the expected visible region. |
| VideoFrame cropped_source_frame; |
| cropped_source_frame.CopyFrame(video_frame_); |
| |
| for (uint32_t run_idx = 0; run_idx < NumRuns; run_idx++) { |
| // Initiate test timer. |
| const TickTime time_start = TickTime::Now(); |
| |
| // Init the sourceFrame with a timestamp. |
| video_frame_.set_render_time_ms(time_start.MillisecondTimestamp()); |
| video_frame_.set_timestamp(time_start.MillisecondTimestamp() * 90); |
| |
| // Test scaling to different sizes: source is of |width|/|height| = 352/288. |
| // Pure scaling: |
| TestSize(video_frame_, video_frame_, width_ / 4, height_ / 4, 25.2, vpm_); |
| TestSize(video_frame_, video_frame_, width_ / 2, height_ / 2, 28.1, vpm_); |
| // No resampling: |
| TestSize(video_frame_, video_frame_, width_, height_, -1, vpm_); |
| TestSize(video_frame_, video_frame_, 2 * width_, 2 * height_, 32.2, vpm_); |
| |
| // Scaling and cropping. The cropped source frame is the largest center |
| // aligned region that can be used from the source while preserving aspect |
| // ratio. |
| CropFrame(video_buffer.get(), width_, height_, 0, 56, 352, 176, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 100, 50, 24.0, vpm_); |
| |
| CropFrame(video_buffer.get(), width_, height_, 0, 30, 352, 225, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 400, 256, 31.3, vpm_); |
| |
| CropFrame(video_buffer.get(), width_, height_, 68, 0, 216, 288, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 480, 640, 32.15, vpm_); |
| |
| CropFrame(video_buffer.get(), width_, height_, 0, 12, 352, 264, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 960, 720, 32.2, vpm_); |
| |
| CropFrame(video_buffer.get(), width_, height_, 0, 44, 352, 198, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 1280, 720, 32.15, vpm_); |
| |
| // Upsampling to odd size. |
| CropFrame(video_buffer.get(), width_, height_, 0, 26, 352, 233, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 501, 333, 32.05, vpm_); |
| // Downsample to odd size. |
| CropFrame(video_buffer.get(), width_, height_, 0, 34, 352, 219, |
| &cropped_source_frame); |
| TestSize(video_frame_, cropped_source_frame, 281, 175, 29.3, vpm_); |
| |
| // Stop timer. |
| const int64_t runtime = (TickTime::Now() - time_start).Microseconds(); |
| if (runtime < min_runtime || run_idx == 0) { |
| min_runtime = runtime; |
| } |
| total_runtime += runtime; |
| } |
| |
| printf("\nAverage run time = %d us / frame\n", |
| static_cast<int>(total_runtime)); |
| printf("Min run time = %d us / frame\n\n", |
| static_cast<int>(min_runtime)); |
| } |
| |
| void PreprocessFrameAndVerify(const VideoFrame& source, |
| int target_width, |
| int target_height, |
| VideoProcessingModule* vpm, |
| VideoFrame** out_frame) { |
| ASSERT_EQ(VPM_OK, vpm->SetTargetResolution(target_width, target_height, 30)); |
| ASSERT_EQ(VPM_OK, vpm->PreprocessFrame(source, out_frame)); |
| |
| // If no resizing is needed, expect NULL. |
| if (target_width == source.width() && target_height == source.height()) { |
| EXPECT_EQ(NULL, *out_frame); |
| return; |
| } |
| |
| // Verify the resampled frame. |
| EXPECT_TRUE(*out_frame != NULL); |
| EXPECT_EQ(source.render_time_ms(), (*out_frame)->render_time_ms()); |
| EXPECT_EQ(source.timestamp(), (*out_frame)->timestamp()); |
| EXPECT_EQ(target_width, (*out_frame)->width()); |
| EXPECT_EQ(target_height, (*out_frame)->height()); |
| } |
| |
| void CropFrame(const uint8_t* source_data, |
| int source_width, |
| int source_height, |
| int offset_x, |
| int offset_y, |
| int cropped_width, |
| int cropped_height, |
| VideoFrame* cropped_frame) { |
| cropped_frame->CreateEmptyFrame(cropped_width, cropped_height, cropped_width, |
| (cropped_width + 1) / 2, |
| (cropped_width + 1) / 2); |
| EXPECT_EQ(0, |
| ConvertToI420(kI420, source_data, offset_x, offset_y, source_width, |
| source_height, 0, kVideoRotation_0, cropped_frame)); |
| } |
| |
| void TestSize(const VideoFrame& source_frame, |
| const VideoFrame& cropped_source_frame, |
| int target_width, |
| int target_height, |
| double expected_psnr, |
| VideoProcessingModule* vpm) { |
| // Resample source_frame to out_frame. |
| VideoFrame* out_frame = NULL; |
| vpm->SetInputFrameResampleMode(kBox); |
| PreprocessFrameAndVerify(source_frame, target_width, target_height, vpm, |
| &out_frame); |
| if (out_frame == NULL) |
| return; |
| WriteProcessedFrameForVisualInspection(source_frame, *out_frame); |
| |
| // Scale |resampled_source_frame| back to the source scale. |
| VideoFrame resampled_source_frame; |
| resampled_source_frame.CopyFrame(*out_frame); |
| PreprocessFrameAndVerify(resampled_source_frame, cropped_source_frame.width(), |
| cropped_source_frame.height(), vpm, &out_frame); |
| WriteProcessedFrameForVisualInspection(resampled_source_frame, *out_frame); |
| |
| // Compute PSNR against the cropped source frame and check expectation. |
| double psnr = I420PSNR(&cropped_source_frame, out_frame); |
| EXPECT_GT(psnr, expected_psnr); |
| printf("PSNR: %f. PSNR is between source of size %d %d, and a modified " |
| "source which is scaled down/up to: %d %d, and back to source size \n", |
| psnr, source_frame.width(), source_frame.height(), |
| target_width, target_height); |
| } |
| |
| bool CompareFrames(const webrtc::VideoFrame& frame1, |
| const webrtc::VideoFrame& frame2) { |
| for (int plane = 0; plane < webrtc::kNumOfPlanes; plane ++) { |
| webrtc::PlaneType plane_type = static_cast<webrtc::PlaneType>(plane); |
| int allocated_size1 = frame1.allocated_size(plane_type); |
| int allocated_size2 = frame2.allocated_size(plane_type); |
| if (allocated_size1 != allocated_size2) |
| return false; |
| const uint8_t* plane_buffer1 = frame1.buffer(plane_type); |
| const uint8_t* plane_buffer2 = frame2.buffer(plane_type); |
| if (memcmp(plane_buffer1, plane_buffer2, allocated_size1)) |
| return false; |
| } |
| return true; |
| } |
| |
| void WriteProcessedFrameForVisualInspection(const VideoFrame& source, |
| const VideoFrame& processed) { |
| // Skip if writing to files is not enabled. |
| if (!FLAGS_gen_files) |
| return; |
| // Write the processed frame to file for visual inspection. |
| std::ostringstream filename; |
| filename << webrtc::test::OutputPath() << "Resampler_from_" << source.width() |
| << "x" << source.height() << "_to_" << processed.width() << "x" |
| << processed.height() << "_30Hz_P420.yuv"; |
| std::cout << "Watch " << filename.str() << " and verify that it is okay." |
| << std::endl; |
| FILE* stand_alone_file = fopen(filename.str().c_str(), "wb"); |
| if (PrintVideoFrame(processed, stand_alone_file) < 0) |
| std::cerr << "Failed to write: " << filename.str() << std::endl; |
| if (stand_alone_file) |
| fclose(stand_alone_file); |
| } |
| |
| } // namespace webrtc |
