{

// command-line parameters

std::vector<std::string> tracksFilenames;

std::string outFilename;

// clang-format off

po::options_description requiredParams("Required parameters");

requiredParams.add_options()

("inputs,i", po::value<std::vector<std::string>>(&tracksFilenames)->multitoken(),

"Path to sfmDatas to merge.")

("output,o", po::value<std::string>(&outFilename)->required(),

"Output SfMData scene.");

// clang-format on

CmdLine cmdline("AliceVision sfmMerge");

cmdline.add(requiredParams);

if (!cmdline.execute(argc, argv))

{

return EXIT_FAILURE;

}

if (tracksFilenames.empty())

{

ALICEVISION_LOG_ERROR("At least one tracks input should be given.");

return EXIT_FAILURE;

}

//viewId, featureId is a unique identifier for an observation

using TuplePoint = std::tuple<feature::EImageDescriberType, IndexT, std::size_t>;

track::TracksMerger merger;

for (const auto & path : tracksFilenames)

{

track::TracksMap mapTracks;

ALICEVISION_LOG_INFO("Loading " << path);

if (!track::loadTracks(mapTracks, path))

{

continue;

}

ALICEVISION_LOG_INFO("File has " << mapTracks.size() << " tracks.");

if (!merger.addTrackMap(mapTracks))

{

ALICEVISION_LOG_ERROR("addTrackMap failed, abort");

return EXIT_FAILURE;

}

}

const auto & resultTracks = merger.getOutputTracks();

ALICEVISION_LOG_INFO("Saving to " << outFilename);

ALICEVISION_LOG_INFO("File has " << resultTracks.size() << " tracks.");

if (!track::saveTracks(resultTracks, outFilename))

{

ALICEVISION_LOG_ERROR("Failed to save file");

return EXIT_FAILURE;

}

return EXIT_SUCCESS;