private static byte[] ReadWaveSamples(
string file,
float volume)
{
var samples = default(byte[]);
var vol = volume > 1.0f ? 1.0f : volume;
using (var audio = new AudioFileReader(file)
{
Volume = vol
})
using (var resampler = new MediaFoundationResampler(audio, DefaultOutputFormat))
using (var output = new MemoryStream(51200))
using (var wrap = new WrappingStream(output))
{
WaveFileWriter.WriteWavFileToStream(wrap, resampler);
wrap.Flush();
wrap.Position = 0;
// ヘッダをカットする
var raw = wrap.ToArray();
var headerLength = 0;
using (var wave = new WaveFileReader(wrap))
{
headerLength = (int)(raw.Length - wave.Length);
}
// ヘッダをスキップした波形データを取得する
samples = raw.Skip(headerLength).ToArray();
}
return(samples);
}
public async void Load()
{
var dir = DirectoryHelper.FindSubDirectory(
@"resources\icon\job");
if (!Directory.Exists(dir))
{
return;
}
await WPFHelper.InvokeAsync(() =>
{
foreach (var job in (JobIDs[])Enum.GetValues(typeof(JobIDs)))
{
var png = Path.Combine(dir, $"{job}.png");
if (!File.Exists(png))
{
continue;
}
var bmp = default(WriteableBitmap);
using (var ms = new WrappingStream(new MemoryStream(File.ReadAllBytes(png))))
{
bmp = new WriteableBitmap(BitmapFrame.Create(ms));
}
bmp.Freeze();
this.Icons[job] = bmp;
}
});
this.isLoaded = true;
}
