How to calculate AccurateRip IDs

Have a look at the code example

Locate the example albumid in the top-level folder examples. You may find a compileable code example for calculating the AccurateRip id for the audio image of an album.

Calculating the AccurateRip ID of an Album

Prerequisites

Consult the module AccurateRip IDs for the part of the API you want to use.

Insert

#include <arcstk/metadata.hpp>
#include <arcstk/identifier.hpp>

in the file where you intend to place your code.

To calculate the AccurateRip ID of an album, we need the index (represented as total number of LBA frames) of each track's first sample. Those indices are called offsets. To get also the last track's end correct we furthermore need the total number of input frames, which is identical with the leadout of the original compact disc. The leadout is as well represented as total number of LBA frames.

You will have to acquire these informations from your image or your disc on your own. We presuppose you have this values and show how to proceed from there.

int32_t total_number_of_frames ...;
std::vector<int32_t> offsets ...;

Get the AccurateRip ID

const auto toc_data { arcstk::toc::construct(total_number_of_frames, offsets) };

// You can validate the ToCData if you want to.
try
{
    arcstk::toc::validate(toc_data);

} catch (const std::exception& e)
{
    std::cerr << e.what() << '\n';
    return EXIT_FAILURE;
}

// If you had skipped the validation before, you would now have to
// try-catch for the case when the ToC is not complete.
const auto id { arcstk::make_arid(arcstk::ToC(toc_data)) };

Access the AccurateRip ID

You can now print the actual id as well as the canonical filename or the AccurateRip URL of the album.

using std::string;
std::cout << "ID:          " << to_string(*id) << '\n';
std::cout << "Filename:    " << id->filename() << '\n';
std::cout << "Request-URL: " << id->url()      << '\n';