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/*
This file is part of libdjinterop.
libdjinterop is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
libdjinterop is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with libdjinterop. If not, see <http://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <string>
#include <vector>
#include <djinterop/djinterop.hpp>
namespace el = djinterop::enginelibrary;
int main(int argc, char** argv)
{
using namespace std::string_literals;
auto dir = "Engine Library"s;
bool created;
auto db = el::create_or_load_database(dir, el::version_latest, created);
std::cout << (created ? "Created " : "Loaded ") << "database in directory "
<< dir << std::endl;
std::cout << "DB version is " << db.version_name() << std::endl;
for (auto& cr : db.crates())
{
std::cout << "Removing prior crate " << cr.name() << std::endl;
db.remove_crate(cr);
}
for (auto& tr : db.tracks())
{
std::cout << "Removing prior track " << tr.filename() << std::endl;
db.remove_track(tr);
}
auto tr = db.create_track("../01 - Some Artist - Some Song.mp3");
std::cout << "Added track " << tr.filename() << std::endl;
tr.set_track_number(1);
tr.set_bpm(120);
tr.set_year(1970);
tr.set_title("Some Song"s);
tr.set_artist("Some Artist"s);
tr.set_publisher(djinterop::stdx::nullopt); // indicates missing metadata
tr.set_key(djinterop::musical_key::a_minor);
tr.set_bitrate(320);
tr.set_average_loudness(0.5); // loudness range (0, 1]
int64_t sample_count = 16140600;
tr.set_sampling(
{44100, // sample rate
sample_count}); // sample count
std::vector<djinterop::beatgrid_marker> beatgrid{
{-4, -83316.78}, // 1st marker
{812, 17470734.439}}; // 2nd marker
tr.set_default_beatgrid(beatgrid); // as analyzed
tr.set_adjusted_beatgrid(beatgrid); // manually adjusted
// The main cue concerns the cue button
tr.set_default_main_cue(2732); // as analyzed
tr.set_adjusted_main_cue(2732); // manually adjusted
// There are always 8 hot cues, whereby each can optionally be set
std::array<djinterop::stdx::optional<djinterop::hot_cue>, 8> cues;
cues[0] = djinterop::hot_cue{
"Cue 1", 1377924.5, // position in number of samples
el::standard_pad_colors::pad_1};
tr.set_hot_cues(cues);
// Setting a single hot cue can also be done like this
tr.set_hot_cue_at(3, {"Cue 4", 5508265.96, el::standard_pad_colors::pad_4});
// The loop API works like the hot cue API
tr.set_loop_at(
0, {"Loop 1", 1144.012, 345339.134, el::standard_pad_colors::pad_1});
// Set high-resolution waveform
int64_t spe = tr.required_waveform_samples_per_entry();
int64_t waveform_size = (sample_count + spe - 1) / spe; // Ceiling division
std::vector<djinterop::waveform_entry> waveform;
waveform.reserve(waveform_size);
for (int64_t i = 0; i < waveform_size; ++i)
{
waveform.push_back( // VALUE and OPACITY for each band (low/mid/high)
{{0, 255}, // low
{42, 255}, // mid
{255, 255}}); // high
}
tr.set_waveform(std::move(waveform));
auto cr = db.create_root_crate("My Example Crate");
cr.add_track(tr);
std::cout << "Added track to crate " << cr.name() << std::endl;
}
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