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changed json file structure to be more space efficient

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Lauchmelder 2021-12-19 21:56:53 +01:00
parent ec7f291194
commit 9558264b5a
1 changed files with 35 additions and 7 deletions
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42
src/main.cpp
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@ -26,7 +26,7 @@ struct Settings {
double minFreq, maxFreq;
unsigned int analyzeChannel;
unsigned int zeropadding;
bool approx;
bool approx, legacy;
WindowFunctions window;
};
@ -40,6 +40,34 @@ int main(int argc, char** argv)
if (setts.approx)
UseFastFunctions();
std::function<void(nlohmann::json&, const std::vector<std::pair<double, double>>&)> toJson;
if (setts.legacy)
{
toJson = [](nlohmann::json& target, const std::vector<std::pair<double, double>>& spectrum)
{
target.push_back({ "spectrum", nlohmann::json::array()});
for (const std::pair<double, double>& pair : spectrum) {
target["spectrum"].push_back({{"freq", pair.first}, {"mag", pair.second}});
}
};
}
else
{
toJson = [](nlohmann::json& target, const std::vector<std::pair<double, double>>& spectrum)
{
target.push_back({ "spectrum", {
{ "freqs", nlohmann::json::array() },
{ "mags", nlohmann::json::array() }
} });
for (const std::pair<double, double>& pair : spectrum) {
target["spectrum"]["freqs"].push_back(pair.first);
target["spectrum"]["mags"].push_back(pair.second);
}
};
}
int numFiles = setts.files.size();
for (auto& file : setts.files) {
AudioFile<double> audioFile;
@ -105,21 +133,19 @@ int main(int argc, char** argv)
output[chName].push_back({
{"begin", currentSample},
{"end", currentSample + sampleInterval},
{"spectrum", nlohmann::json::array()}
{"end", currentSample + sampleInterval}
});
for (const std::pair<double, double>& pair : spectrum) {
output[chName].back()["spectrum"].push_back({ {"freq", pair.first}, {"mag", pair.second } });
}
toJson(output[chName].back(), spectrum);
PRINTER(setts, "\rAnalyzing " << filename << "... Channel " << c << "/" << numChannels << " " << (int)std::floor((float)currentSample / (float)audioFile.samples[c-1].size() * 100.0f) << "% ");
// std::cout << "sdfjkhsjd" << std::endl;
}
}
}
std::ofstream ofs(file.replace_extension("json"));
ofs << std::setw(4) << output << std::endl;
ofs << std::setw(4) << output.dump() << std::endl;
ofs.close();
PRINTER(setts, "\rAnalyzing " << filename << "... 100% " << std::endl);
@ -147,6 +173,7 @@ Settings Parse(int argc, char** argv)
("m,mono", "Analyze only the given channel", cxxopts::value<unsigned int>()->default_value("0"))
("approx", "Use faster, but more inaccurate trigonometric functions instead of the std-functions (EXPERIMENTAL)")
("files", "Files to fourier transform", cxxopts::value<std::vector<std::filesystem::path>>())
("legacy", "Uses the legacy data structure (WHICH IS VERY BAD!)", cxxopts::value<bool>()->default_value("false"))
("h,help", "Print usage")
;
@ -182,6 +209,7 @@ Settings Parse(int argc, char** argv)
setts.analyzeChannel = (result.count("mono") ? result["mono"].as<unsigned int>() : 0);
setts.zeropadding = (result.count("pad") ? result["pad"].as<unsigned int>() : 1);
setts.approx = (result.count("approx") ? true : false);
setts.legacy = (result.count("legacy") ? result["legacy"].as<bool>() : false);
if (!result.count("window"))
{