1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <stdio.h> 12 #include <stdlib.h> 13 14 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h" 15 #include "webrtc/modules/video_processing/main/interface/video_processing.h" 16 #include "webrtc/modules/video_processing/main/test/unit_test/video_processing_unittest.h" 17 #include "webrtc/system_wrappers/interface/tick_util.h" 18 #include "webrtc/test/testsupport/fileutils.h" 19 20 namespace webrtc { 21 22 TEST_F(VideoProcessingModuleTest, ColorEnhancement) 23 { 24 TickTime t0; 25 TickTime t1; 26 TickInterval acc_ticks; 27 28 // Use a shorter version of the Foreman clip for this test. 29 fclose(source_file_); 30 const std::string video_file = 31 webrtc::test::ResourcePath("foreman_cif_short", "yuv"); 32 source_file_ = fopen(video_file.c_str(), "rb"); 33 ASSERT_TRUE(source_file_ != NULL) << 34 "Cannot read source file: " + video_file + "\n"; 35 36 std::string output_file = webrtc::test::OutputPath() + 37 "foremanColorEnhancedVPM_cif_short.yuv"; 38 FILE* modFile = fopen(output_file.c_str(), "w+b"); 39 ASSERT_TRUE(modFile != NULL) << "Could not open output file.\n"; 40 41 uint32_t frameNum = 0; 42 scoped_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]); 43 while (fread(video_buffer.get(), 1, frame_length_, source_file_) == 44 frame_length_) 45 { 46 // Using ConvertToI420 to add stride to the image. 47 EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, 48 width_, height_, 49 0, kRotateNone, &video_frame_)); 50 frameNum++; 51 t0 = TickTime::Now(); 52 ASSERT_EQ(0, VideoProcessingModule::ColorEnhancement(&video_frame_)); 53 t1 = TickTime::Now(); 54 acc_ticks += t1 - t0; 55 if (PrintI420VideoFrame(video_frame_, modFile) < 0) { 56 return; 57 } 58 } 59 ASSERT_NE(0, feof(source_file_)) << "Error reading source file"; 60 61 printf("\nTime per frame: %d us \n", 62 static_cast<int>(acc_ticks.Microseconds() / frameNum)); 63 rewind(modFile); 64 65 printf("Comparing files...\n\n"); 66 std::string reference_filename = 67 webrtc::test::ResourcePath("foremanColorEnhanced_cif_short", "yuv"); 68 FILE* refFile = fopen(reference_filename.c_str(), "rb"); 69 ASSERT_TRUE(refFile != NULL) << "Cannot open reference file: " << 70 reference_filename << "\n" 71 "Create the reference by running Matlab script createTable.m."; 72 73 // get file lenghts 74 ASSERT_EQ(0, fseek(refFile, 0L, SEEK_END)); 75 long refLen = ftell(refFile); 76 ASSERT_NE(-1L, refLen); 77 rewind(refFile); 78 ASSERT_EQ(0, fseek(modFile, 0L, SEEK_END)); 79 long testLen = ftell(modFile); 80 ASSERT_NE(-1L, testLen); 81 rewind(modFile); 82 ASSERT_EQ(refLen, testLen) << "File lengths differ."; 83 84 I420VideoFrame refVideoFrame; 85 refVideoFrame.CreateEmptyFrame(width_, height_, 86 width_, half_width_, half_width_); 87 88 // Compare frame-by-frame. 89 scoped_ptr<uint8_t[]> ref_buffer(new uint8_t[frame_length_]); 90 while (fread(video_buffer.get(), 1, frame_length_, modFile) == 91 frame_length_) 92 { 93 // Using ConvertToI420 to add stride to the image. 94 EXPECT_EQ(0, ConvertToI420(kI420, video_buffer.get(), 0, 0, 95 width_, height_, 96 0, kRotateNone, &video_frame_)); 97 ASSERT_EQ(frame_length_, fread(ref_buffer.get(), 1, frame_length_, 98 refFile)); 99 EXPECT_EQ(0, ConvertToI420(kI420, ref_buffer.get(), 0, 0, 100 width_, height_, 101 0, kRotateNone, &refVideoFrame)); 102 EXPECT_EQ(0, memcmp(video_frame_.buffer(kYPlane), 103 refVideoFrame.buffer(kYPlane), 104 size_y_)); 105 EXPECT_EQ(0, memcmp(video_frame_.buffer(kUPlane), 106 refVideoFrame.buffer(kUPlane), 107 size_uv_)); 108 EXPECT_EQ(0, memcmp(video_frame_.buffer(kVPlane), 109 refVideoFrame.buffer(kVPlane), 110 size_uv_)); 111 } 112 ASSERT_NE(0, feof(source_file_)) << "Error reading source file"; 113 114 // Verify that all color pixels are enhanced, and no luminance values are 115 // altered. 116 117 scoped_ptr<uint8_t[]> testFrame(new uint8_t[frame_length_]); 118 119 // Use value 128 as probe value, since we know that this will be changed 120 // in the enhancement. 121 memset(testFrame.get(), 128, frame_length_); 122 123 I420VideoFrame testVideoFrame; 124 testVideoFrame.CreateEmptyFrame(width_, height_, 125 width_, half_width_, half_width_); 126 EXPECT_EQ(0, ConvertToI420(kI420, testFrame.get(), 0, 0, 127 width_, height_, 0, kRotateNone, 128 &testVideoFrame)); 129 130 ASSERT_EQ(0, VideoProcessingModule::ColorEnhancement(&testVideoFrame)); 131 132 EXPECT_EQ(0, memcmp(testVideoFrame.buffer(kYPlane), testFrame.get(), 133 size_y_)) 134 << "Function is modifying the luminance."; 135 136 EXPECT_NE(0, memcmp(testVideoFrame.buffer(kUPlane), 137 testFrame.get() + size_y_, size_uv_)) << 138 "Function is not modifying all chrominance pixels"; 139 EXPECT_NE(0, memcmp(testVideoFrame.buffer(kVPlane), 140 testFrame.get() + size_y_ + size_uv_, size_uv_)) << 141 "Function is not modifying all chrominance pixels"; 142 143 ASSERT_EQ(0, fclose(refFile)); 144 ASSERT_EQ(0, fclose(modFile)); 145 } 146 147 } // namespace webrtc 148
