/// <summary>
/// Produces Opus encoded audio from PCM samples.
/// </summary>
/// <param name="inputPcmSamples">PCM samples to encode.</param>
/// <returns>Opus encoded audio buffer.</returns>
public byte[] Encode(byte[] inputPcmSamples)
{
int frames = FrameCount(inputPcmSamples);
IntPtr encodedPtr = Marshal.AllocHGlobal(MaxDataBytes);
IntPtr inputPtr = Marshal.AllocHGlobal(inputPcmSamples.Length);
Marshal.Copy(inputPcmSamples, 0, inputPtr, inputPcmSamples.Length);
int length = OpusAPI.opus_encode(_encoder, inputPtr, frames, encodedPtr, MaxDataBytes);
Marshal.FreeHGlobal(inputPtr);
byte[] encodedBytes = new byte[length];
Marshal.Copy(encodedPtr, encodedBytes, 0, length);
Marshal.FreeHGlobal(encodedPtr);
if (length < 0)
{
throw new Exception("Encoding failed - " + ((Errors)length).ToString());
}
return(encodedBytes);
}
