我正在尝试编译以下包装库代码以使用适用于 Ubuntu 的 Affectiva 库：
#include <iostream>
#include <memory>
#include <chrono>
#include <fstream>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <boost/filesystem.hpp>
#include <boost/timer/timer.hpp>
#include <boost/program_options.hpp>
#include "VideoDetector.h"
#include "PhotoDetector.h"
#include "AffdexException.h"
#include "PlottingImageListener.hpp"
#include "StatusListener.hpp"
using namespace std;
using namespace affdex;
int main(int argsc, char * argsv) {
std::map<boost::filesystem::path, bool> VIDEO_EXTS = { {boost::filesystem::path(".avi"), 1},
{boost::filesystem::path(".mov"), 1},
{boost::filesystem::path(".flv"), 1},
{boost::filesystem::path(".webm"), 1},
{boost::filesystem::path(".wmv"), 1},
{boost::filesystem::path(".mp4"), 1} };
affdex::path DATA_FOLDER;
affdex::path videoPath;
int process_framerate = 30;
bool draw_display = true;
bool loop = false;
unsigned int nFaces = 1;
int faceDetectorMode = (int)FaceDetectorMode::LARGE_FACES;
const int precision = 2;
std::cerr.precision(precision);
std::cout.precision(precision);
namespace po = boost::program_options; // abbreviate namespace
po::options_description description("Project for demoing the Affdex SDK VideoDetector class (processing video files).");
description.add_options()
#ifdef _WIN32
("data,d", po::wvalue< affdex::path >(&DATA_FOLDER)->default_value(affdex::path(L"data"), std::string("data")), "Path to the data folder")
("input,i", po::wvalue< affdex::path >(&videoPath)->required(), "Video file to processs")
#else // _WIN32
("data,d", po::value< affdex::path >(&DATA_FOLDER)->default_value(affdex::path("data"), std::string("data")), "Path to the data folder")
("input,i", po::value< affdex::path >(&videoPath)->required(), "Video file to processs")
#endif // _WIN32
("pfps", po::value< int >(&process_framerate)->default_value(30), "Processing framerate.")
("faceMode", po::value< int >(&faceDetectorMode)->default_value((int)FaceDetectorMode::SMALL_FACES), "Face detector mode (large faces vs small faces).")
("numFaces", po::value< unsigned int >(&nFaces)->default_value(1), "Number of faces to be tracked.")
("loop", po::value< bool >(&loop)->default_value(false), "Loop over the video being processed.")
;
po::variables_map args;
try
{
po::store(po::command_line_parser(argsc, &argsv).options(description).run(), args);
if (args["help"].as<bool>())
{
std::cout << description << std::endl;
return 0;
}
po::notify(args);
}
catch (po::error& e)
{
std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
std::cerr << "For help, use the -h option." << std::endl << std::endl;
return 1;
}
// Parse and check the data folder (with assets)
if (!boost::filesystem::exists(DATA_FOLDER))
{
std::cerr << "Data folder doesn't exist: " << std::string(DATA_FOLDER.begin(), DATA_FOLDER.end()) << std::endl;
std::cerr << "Try specifying the folder through the command line" << std::endl;
std::cerr << description << std::endl;
return 1;
}
try
{
std::shared_ptr<Detector> detector;
//Initialize out file
boost::filesystem::path csvPath(videoPath);
boost::filesystem::path fileExt = csvPath.extension();
csvPath.replace_extension(".csv");
std::ofstream csvFileStream(csvPath.c_str());
if (!csvFileStream.is_open())
{
std::cerr << "Unable to open csv file " << csvPath << std::endl;
return 1;
}
if (VIDEO_EXTS[fileExt]) // IF it is a video file.
{
detector = std::make_shared<VideoDetector>(process_framerate, nFaces, (affdex::FaceDetectorMode) faceDetectorMode);
}
else //Otherwise it's a photo
{
detector = std::make_shared<PhotoDetector>(nFaces, (affdex::FaceDetectorMode) faceDetectorMode);
}
//VideoDetector videoDetector(process_framerate, nFaces, (affdex::FaceDetectorMode) faceDetectorMode);
std::cout << "Max num of faces set to: " << detector->getMaxNumberFaces() << std::endl;
std::string mode;
switch (detector->getFaceDetectorMode())
{
case FaceDetectorMode::LARGE_FACES:
mode = "LARGE_FACES";
break;
case FaceDetectorMode::SMALL_FACES:
mode = "SMALL_FACES";
break;
default:
break;
}
std::cout << "Face detector mode set to: " << mode << std::endl;
shared_ptr<PlottingImageListener> listenPtr(new PlottingImageListener(csvFileStream, draw_display));
detector->setDetectAllEmotions(true);
detector->setDetectAllExpressions(true);
detector->setDetectAllEmojis(true);
detector->setDetectAllAppearances(true);
detector->setClassifierPath(DATA_FOLDER);
detector->setImageListener(listenPtr.get());
detector->start(); //Initialize the detectors .. call only once
do
{
shared_ptr<StatusListener> videoListenPtr = std::make_shared<StatusListener>();
detector->setProcessStatusListener(videoListenPtr.get());
if (VIDEO_EXTS[fileExt])
{
((VideoDetector *)detector.get())->process(videoPath); //Process a video
}
else
{
//videoPath is of type std::wstring on windows, but std::string on other platforms.
cv::Mat img = cv::imread(std::string(videoPath.begin(), videoPath.end()));
// Create a frame
Frame frame(img.size().width, img.size().height, img.data, Frame::COLOR_FORMAT::BGR);
((PhotoDetector *)detector.get())->process(frame); //Process an image
}
do
{
if (listenPtr->getDataSize() > 0)
{
std::pair<Frame, std::map<FaceId, Face> > dataPoint = listenPtr->getData();
Frame frame = dataPoint.first;
std::map<FaceId, Face> faces = dataPoint.second;
if (draw_display)
{
listenPtr->draw(faces, frame);
}
std::cerr << "timestamp: " << frame.getTimestamp()
<< " cfps: " << listenPtr->getCaptureFrameRate()
<< " pfps: " << listenPtr->getProcessingFrameRate()
<< " faces: "<< faces.size() << endl;
listenPtr->outputToFile(faces, frame.getTimestamp());
}
} while (VIDEO_EXTS[fileExt] && (videoListenPtr->isRunning() || listenPtr->getDataSize() > 0));
} while(loop);
detector->stop();
csvFileStream.close();
std::cout << "Output written to file: " << csvPath << std::endl;
}
catch (AffdexException ex)
{
std::cerr << ex.what();
}
return 0;
}
我的命令是：
g++-4.8 VidDetector.cpp -o VidDetector -std=c++11 -I/root/affdex-sdk/include -I/root/affdexUbuntu/include -I/root/sdk-samples/common -L/root/affdex-sdk/lib -l affdex-native -L/usr/lib/x86_64-linux-gnu -l boost_system -l boost_filesystem
结果是链接 boost 库时出现问题：
VidDetector.cpp:(.text+0x8d9): undefined reference to `boost::program_options::variables_map::variables_map()'
VidDetector.cpp:(.text+0x943): undefined reference to `boost::program_options::store(boost::program_options::basic_parsed_options<char> const&, boost::program_options::variables_map&, bool)'
VidDetector.cpp:(.text+0x9e5): undefined reference to `boost::program_options::operator<<(std::ostream&, boost::program_options::options_description const&)'
VidDetector.cpp:(.text+0xa0b): undefined reference to `boost::program_options::notify(boost::program_options::variables_map&)'
VidDetector.cpp:(.text+0xb1a): undefined reference to `boost::program_options::operator<<(std::ostream&, boost::program_options::options_description const&)'
/tmp/ccUPvUA2.o: In function `boost::program_options::error_with_option_name::~error_with_option_name()':
我不确定如何解决这些问题。我已经尝试使用 g++ 包含 boost .so 文件，但它仍然没有找到对必要文件的引用。我在解决此问题的命令中缺少什么？