/// <summary>
/// Finds the converting method based on the specified formats.
/// </summary>
/// <param name="data">Reference to the buffer of audio data.</param>
/// <param name="from">Audio format that the data will be converted from.</param>
/// <param name="to">Audio format that the data will be converted to.</param>
/// <returns>New array with the audio data in requested format.</returns>
internal static short[] Convert(byte[] data, AudioCodec from, AudioCodec to)
{
ConvertByteShort cnvDlgt = null;
switch (from)
{
case AudioCodec.PCM8:
switch (to)
{
case AudioCodec.PCM16: cnvDlgt = new ConvertByteShort(ConvertLinear8LinearByteShort); break;
}
break;
case AudioCodec.PCM16:
switch (to)
{
case AudioCodec.PCM16: cnvDlgt = new ConvertByteShort(ConvertLinear2LinearByteShort); break;
}
break;
case AudioCodec.G711U:
switch (to)
{
case AudioCodec.PCM16: cnvDlgt = new ConvertByteShort(ConvertULaw2Linear); break;
}
break;
case AudioCodec.G711A:
switch (to)
{
case AudioCodec.PCM16: cnvDlgt = new ConvertByteShort(ConvertALaw2Linear); break;
}
break;
default:
throw new FormatException();
}
if (cnvDlgt == null)
{
throw new FormatException();
}
return(cnvDlgt(data, data.Length));
}
internal static short[] Convert(byte[] data, AudioCodec from, AudioCodec to)
{
ConvertByteShort convertByteShort = null;
switch (from)
{
case AudioCodec.PCM8:
if (to == AudioCodec.PCM16)
{
convertByteShort = ConvertLinear8LinearByteShort;
}
break;
case AudioCodec.PCM16:
if (to == AudioCodec.PCM16)
{
convertByteShort = ConvertLinear2LinearByteShort;
}
break;
case AudioCodec.G711U:
if (to == AudioCodec.PCM16)
{
convertByteShort = ConvertULaw2Linear;
}
break;
case AudioCodec.G711A:
if (to == AudioCodec.PCM16)
{
convertByteShort = ConvertALaw2Linear;
}
break;
default:
throw new FormatException();
}
if (convertByteShort == null)
{
throw new FormatException();
}
return(convertByteShort(data, data.Length));
}
