Function readCallback

src/SFML/Audio/SoundFileReaderMp3.cpp:49–53

namespace
{
std::size_t readCallback(void* userData, void* bufferOut, std::size_t bytesToRead)
{
    auto* stream = static_cast<sf::InputStream*>(userData);
    return stream->read(bufferOut, bytesToRead).value_or(0);
}

drmp3_bool32 seekCallback(void* userData, int offset, drmp3_seek_origin origin)
{