public RenderAudioScene(Game game, string inputPath, string outputPath)
: base(game, false)
{
if (string.IsNullOrEmpty(outputPath))
{
Log.Error("Output is missing");
return;
}
Chart chart = Chart.Load(inputPath);
chart.GenerateEvents();
if (string.IsNullOrWhiteSpace(Path.GetExtension(outputPath)))
{
outputPath += ".wav";
}
// preload all audio
Loader loader = new Loader(chart, audio);
loader.PreloadAll(true, false);
songPlayer = new BGM(chart, audio);
autoplay = new Player(chart, audio, null, null);
songPlayer.realtime = false;
autoplay.realtime = false;
autoplay.autoplay = true;
songPlayer.StartPlayer();
autoplay.StartPlayer();
songPlayer.Update(1.0f);
autoplay.Update(1.0f);
if (songPlayer.playing || autoplay.playing)
{
throw new ApplicationException("Players did not finish as expected");
}
Log.Info("Rendering audio...");
byte[] audioData = audio.RenderAudio();
if (audioData.Length > 0)
{
Log.Info("Saving audio...");
FFmpegHelper.SaveSound(outputPath,
audioData, audioData.Length / 4, audio.audioSpec.freq);
}
else
{
Log.Warning("No audio was rendered");
}
}