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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 <djinterop/djinterop.hpp>
namespace e = djinterop::engine;
int main()
{
using namespace std::string_literals;
auto dir = "Engine Library"s;
auto version = e::latest;
bool created;
auto db = e::create_or_load_database(dir, version, 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 tr " << tr.filename() << std::endl;
db.remove_track(tr);
}
djinterop::track_snapshot td;
td.relative_path = "../01 - Some Artist - Some Song.mp3"s;
td.track_number = 1;
td.duration = std::chrono::milliseconds{366000};
td.bpm = 120;
td.year = 1970;
td.title = "Some Song"s;
td.artist = "Some Artist"s;
td.publisher = std::nullopt; // indicates missing metadata
td.key = djinterop::musical_key::a_minor;
td.bitrate = 320;
td.rating = 60; // note: rating is in the range 0-100
td.average_loudness = 0.5; // loudness range (0, 1]
td.sample_count = 16140600;
td.sample_rate = 44100;
td.beatgrid.push_back({-4, -83316.78});
td.beatgrid.push_back({812, 17470734.439});
// The main cue concerns the cue button
td.main_cue = 2732;
// There are always 8 hot cues, whereby each can optionally be set.
td.hot_cues.resize(8);
td.hot_cues[0] = djinterop::hot_cue{
"Cue 1", 1377924.5, // position in number of samples
e::standard_pad_colors::pad_1};
td.hot_cues[3] =
djinterop::hot_cue{"Cue 4", 5508265.96, e::standard_pad_colors::pad_4};
// The loop API works like the hot cue API
td.loops.resize(8);
td.loops[0] = djinterop::loop{
"Loop 1", 1144.012, 345339.134, e::standard_pad_colors::pad_1};
// Set waveform
auto waveform_extents = e::calculate_overview_waveform_extents(
*td.sample_count, *td.sample_rate);
td.waveform.reserve(waveform_extents.size);
for (unsigned long long i = 0; i < waveform_extents.size; ++i)
{
td.waveform.push_back( // VALUE / OPACITY for each band (low/mid/high)
{{0, 255}, // low
{42, 255}, // mid
{255, 255}}); // high
}
auto tr = db.create_track(td);
std::cout << "Added tr " << tr.filename() << std::endl;
auto cr = db.create_root_crate("My Example Crate");
cr.add_track(tr);
std::cout << "Added tr to crate " << cr.name() << std::endl;
}
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