/// <summary>
/// Creates a new Opus decoder.
/// </summary>
/// <param name="outputSampleRate">Sample rate to decode at (Hz). This must be one of 8000, 12000, 16000, 24000, or 48000.</param>
/// <param name="outputChannels">Number of channels to decode.</param>
/// <returns>A new <c>OpusDecoder</c>.</returns>
public static OpusDecoder Create(int outputSampleRate, int outputChannels)
{
if (outputSampleRate != 8000 &&
outputSampleRate != 12000 &&
outputSampleRate != 16000 &&
outputSampleRate != 24000 &&
outputSampleRate != 48000)
{
throw new ArgumentOutOfRangeException(nameof(outputSampleRate));
}
if (outputChannels != 1 && outputChannels != 2)
{
throw new ArgumentOutOfRangeException(nameof(outputChannels));
}
OpusLoader.LoadOpus();
IntPtr error;
IntPtr decoder = OpusApi.opus_decoder_create(outputSampleRate, outputChannels, out error);
if ((Errors)error != Errors.OK)
{
throw new Exception("Exception occurred while creating decoder");
}
return(new OpusDecoder(decoder, outputSampleRate, outputChannels));
}
/// <summary>
/// Creates a new Opus encoder.
/// </summary>
/// <param name="inputSamplingRate">
/// Sampling rate of the input signal (Hz). This must be one of 8000, 12000, 16000, 24000,
/// or 48000.
/// </param>
/// <param name="inputChannels">Number of channels (1 or 2) in input signal.</param>
/// <param name="application">Coding mode.</param>
/// <returns>A new <c>OpusEncoder</c></returns>
public static OpusEncoder Create(int inputSamplingRate, int inputChannels, Application application)
{
if (inputSamplingRate != 8000 &&
inputSamplingRate != 12000 &&
inputSamplingRate != 16000 &&
inputSamplingRate != 24000 &&
inputSamplingRate != 48000)
{
throw new ArgumentOutOfRangeException(nameof(inputSamplingRate));
}
if (inputChannels != 1 && inputChannels != 2)
{
throw new ArgumentOutOfRangeException(nameof(inputChannels));
}
OpusLoader.LoadOpus();
IntPtr error;
IntPtr encoder = OpusApi.opus_encoder_create(inputSamplingRate, inputChannels, (int)application, out error);
if ((Errors)error != Errors.OK)
{
throw new Exception("Exception occurred while creating encoder");
}
return(new OpusEncoder(encoder, inputSamplingRate, inputChannels, application));
}