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 <map> 15 #include <string> 16 #include <vector> 17 18 #include "webrtc/tools/frame_analyzer/video_quality_analysis.h" 19 #include "webrtc/tools/simple_command_line_parser.h" 20 21 /* 22 * A command line tool running PSNR and SSIM on a reference video and a test 23 * video. The test video is a record of the reference video which can start at 24 * an arbitrary point. It is possible that there will be repeated frames or 25 * skipped frames as well. In order to have a way to compare corresponding 26 * frames from the two videos, a stats file should be provided. The stats file 27 * is a text file assumed to be in the format: 28 * frame_xxxx yyyy 29 * where xxxx is the frame number in the test video and yyyy is the 30 * corresponding frame number in the original video. 31 * The video files should be 1420 YUV videos. 32 * The tool prints the result to standard output in the Chromium perf format: 33 * RESULT <metric>:<label>= <values> 34 * 35 * The max value for PSNR is 48.0 (between equal frames), as for SSIM it is 1.0. 36 * 37 * Usage: 38 * frame_analyzer --label=<test_label> --reference_file=<name_of_file> 39 * --test_file=<name_of_file> --stats_file=<name_of_file> --width=<frame_width> 40 * --height=<frame_height> 41 */ 42 int main(int argc, char** argv) { 43 std::string program_name = argv[0]; 44 std::string usage = "Compares the output video with the initially sent video." 45 "\nExample usage:\n" + program_name + " --stats_file=stats.txt " 46 "--reference_file=ref.yuv --test_file=test.yuv --width=320 --height=240\n" 47 "Command line flags:\n" 48 " - width(int): The width of the reference and test files. Default: -1\n" 49 " - height(int): The height of the reference and test files. " 50 " Default: -1\n" 51 " - label(string): The label to use for the perf output." 52 " Default: MY_TEST\n" 53 " - stats_file(string): The full name of the file containing the stats" 54 " after decoding of the received YUV video. Default: stats.txt\n" 55 " - reference_file(string): The reference YUV file to compare against." 56 " Default: ref.yuv\n" 57 " - test_file(string): The test YUV file to run the analysis for." 58 " Default: test_file.yuv\n"; 59 60 webrtc::test::CommandLineParser parser; 61 62 // Init the parser and set the usage message 63 parser.Init(argc, argv); 64 parser.SetUsageMessage(usage); 65 66 parser.SetFlag("width", "-1"); 67 parser.SetFlag("height", "-1"); 68 parser.SetFlag("label", "MY_TEST"); 69 parser.SetFlag("stats_file", "stats.txt"); 70 parser.SetFlag("reference_file", "ref.yuv"); 71 parser.SetFlag("test_file", "test.yuv"); 72 parser.SetFlag("help", "false"); 73 74 parser.ProcessFlags(); 75 if (parser.GetFlag("help") == "true") { 76 parser.PrintUsageMessage(); 77 exit(EXIT_SUCCESS); 78 } 79 parser.PrintEnteredFlags(); 80 81 int width = strtol((parser.GetFlag("width")).c_str(), NULL, 10); 82 int height = strtol((parser.GetFlag("height")).c_str(), NULL, 10); 83 84 if (width <= 0 || height <= 0) { 85 fprintf(stderr, "Error: width or height cannot be <= 0!\n"); 86 return -1; 87 } 88 89 webrtc::test::ResultsContainer results; 90 91 webrtc::test::RunAnalysis(parser.GetFlag("reference_file").c_str(), 92 parser.GetFlag("test_file").c_str(), 93 parser.GetFlag("stats_file").c_str(), width, height, 94 &results); 95 96 std::string label = parser.GetFlag("label"); 97 webrtc::test::PrintAnalysisResults(label, &results); 98 webrtc::test::PrintMaxRepeatedAndSkippedFrames(label, 99 parser.GetFlag("stats_file")); 100 } 101
