avblocks-cpp/samples/windows/enc_mp3_push/options.cpp at main · avblocks/avblocks-cpp · GitHub

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#include "stdafx.h"
#include "options.h"
#include "program_options.h"
#include "util.h"

namespace fs = std::filesystem;

using namespace std;
using namespace primo::program_options;
using namespace primo::codecs;

void setDefaultOptions(Options& opt)
{
    opt.inputFile = getExeDir() + L"/../../assets/aud/equinox-48KHz.wav";

    fs::path output(getExeDir() + L"/../../output/enc_mp3_push");
    fs::create_directories(output);

    wostringstream s;
    s << output.c_str() << L"/equinox-48KHz.mp3";

    opt.outputFile = s.str();
}

void help(OptionsConfig<wchar_t>& optcfg)
{
    wcout << L"enc_mp3_push --input <wav file> --output <mp3 file>" << endl;
    doHelp(wcout, optcfg);
}

bool validateOptions(Options& opt)
{
    if(opt.inputFile.empty())
    {
        wcout << L"Input file needed" << endl;
        return false;
    }
    else
    {
        wcout << L"Input file: " << opt.inputFile << endl;
    }

    if(opt.outputFile.empty())
    {
        wcout << L"Output file needed" << endl;
        return false;
    }
    else
    {
        wcout << L"Output file: " << opt.outputFile << endl;
    }

    return true;
}

ErrorCodes prepareOptions(Options &opt, int argc, wchar_t* argv[])
{
    if (argc < 2)
    {
        setDefaultOptions(opt);
        wcout << L"Using defaults:\n";
        wcout << L" --input " << opt.inputFile;
        wcout << L" --output " << opt.outputFile;
        wcout << endl;
        return Parsed;
    }

    primo::program_options::OptionsConfig<wchar_t> optcfg;
    optcfg.addOptions()
        (L"help,h",     opt.help,                   L"")
        (L"input,i",    opt.inputFile,  wstring(),  L"input WAV file")
        (L"output,o",   opt.outputFile, wstring(),  L"output MP3 file");
    try
    {
        primo::program_options::scanArgv(optcfg, argc, argv);
    }
    catch (primo::program_options::ParseFailure<wchar_t> &ex)
    {
        wcout << ex.message() << endl;
        help(optcfg);
        return Error;
    }

    if (opt.help)
    {
        help(optcfg);
        return Command;
    }

    if (!validateOptions(opt))
    {
        help(optcfg);
        return Error;
    }

    return Parsed;
}