internal static AudioEncoding GetWaveFormatTag(this WaveFormat waveFormat)
{
if (waveFormat is WaveFormatExtensible)
{
return(AudioSubTypes.EncodingFromSubType(((WaveFormatExtensible)waveFormat).SubFormat));
}
return(waveFormat.WaveFormatTag);
}
/// <summary>
/// Returns the SubType-Guid of a <paramref name="waveFormat" />. If the specified <paramref name="waveFormat" /> does
/// not contain a SubType-Guid, the <see cref="WaveFormat.WaveFormatTag" /> gets converted to the equal SubType-Guid
/// using the <see cref="AudioSubTypes.SubTypeFromEncoding" /> method.
/// </summary>
/// <param name="waveFormat"><see cref="WaveFormat" /> which gets used to determine the SubType-Guid.</param>
/// <returns>SubType-Guid of the specified <paramref name="waveFormat" />.</returns>
public static Guid SubTypeFromWaveFormat(WaveFormat waveFormat)
{
if (waveFormat == null)
{
throw new ArgumentNullException("waveFormat");
}
if (waveFormat is WaveFormatExtensible)
{
return(((WaveFormatExtensible)waveFormat).SubFormat);
}
return(AudioSubTypes.SubTypeFromEncoding(waveFormat.WaveFormatTag));
}
internal override void SetWaveFormatTagInternal(AudioEncoding waveFormatTag)
{
SubFormat = AudioSubTypes.SubTypeFromEncoding(waveFormatTag);
}
/// <summary>
/// Converts the <see cref="WaveFormatExtensible" /> instance to a raw <see cref="WaveFormat" /> instance by converting
/// the <see cref="SubFormat" /> to the equal <see cref="WaveFormat.WaveFormatTag" />.
/// </summary>
/// <returns>A simple <see cref="WaveFormat"/> instance.</returns>
public WaveFormat ToWaveFormat()
{
return(new WaveFormat(SampleRate, BitsPerSample, Channels, AudioSubTypes.EncodingFromSubType(SubFormat)));
}
