public static Fin <bool> IsPcmWaveFile(Stream stream)
{
var riffChunk = FindRiffChunk(stream);
var waveChunk = riffChunk.Bind(r => FindWaveChunk(stream, r));
var formatChunk = waveChunk.Bind(w => Wave.FindFormatChunk(stream, w));
if (formatChunk.IsFail)
{
return((Error)formatChunk);
}
var formatSpan = RangeHelper.ReadRange(stream, (RangeHelper.Range)formatChunk);
var format = Wave.GetAudioFormat(formatSpan);
return(format == Format.Pcm);
}
/// <summary>
/// Check if file has version 1 wamd chunk.
/// Wamd chunk contains metadata for wildlife acoustics sensors.
/// </summary>
/// <param name="stream">The file stream.</param>
/// <returns>Boolean indicating weather the wamd chunk is present.</returns>
public static Fin <bool> HasVersion1WamdChunk(Stream stream)
{
var wamdChunk = GetWamdChunk(stream);
if (wamdChunk.IsFail)
{
return((Error)wamdChunk);
}
var wamdSpan = RangeHelper.ReadRange(stream, (RangeHelper.Range)wamdChunk);
var version = GetVersion(wamdSpan);
if (version.IsFail)
{
return((Error)version);
}
return(version == 1);
}