public OpusEncoder(SamplingRate inputSamplingRateHz, Channels numChannels, OpusApplicationType applicationType, Delay encoderDelay)
{
if ((inputSamplingRateHz != SamplingRate.Sampling08000) &&
(inputSamplingRateHz != SamplingRate.Sampling12000) &&
(inputSamplingRateHz != SamplingRate.Sampling16000) &&
(inputSamplingRateHz != SamplingRate.Sampling24000) &&
(inputSamplingRateHz != SamplingRate.Sampling48000))
{
throw new ArgumentOutOfRangeException("inputSamplingRateHz", "Must use one of the pre-defined sampling rates");
}
if ((numChannels != Channels.Mono) &&
(numChannels != Channels.Stereo))
{
throw new ArgumentOutOfRangeException("numChannels", "Must be Mono or Stereo");
}
if ((applicationType != OpusApplicationType.Audio) &&
(applicationType != OpusApplicationType.RestrictedLowDelay) &&
(applicationType != OpusApplicationType.Voip))
{
throw new ArgumentOutOfRangeException("applicationType", "Must use one of the pre-defined application types");
}
if ((encoderDelay != Delay.Delay10ms) &&
(encoderDelay != Delay.Delay20ms) &&
(encoderDelay != Delay.Delay2dot5ms) &&
(encoderDelay != Delay.Delay40ms) &&
(encoderDelay != Delay.Delay5ms) &&
(encoderDelay != Delay.Delay60ms))
{
throw new ArgumentOutOfRangeException("encoderDelay", "Must use one of the pre-defined delay values");
}
_inputSamplingRate = inputSamplingRateHz;
_inputChannels = numChannels;
_handle = Wrapper.opus_encoder_create(inputSamplingRateHz, numChannels, applicationType);
_version = Wrapper.opus_get_version();
if (_handle == IntPtr.Zero)
{
throw new OpusException(OpusStatusCode.AllocFail, "Memory was not allocated for the encoder");
}
EncoderDelay = encoderDelay;
}
public static IntPtr opus_encoder_create(SamplingRate Fs, Channels channels, OpusApplicationType application)
{
int size = Wrapper.opus_encoder_get_size(channels);
IntPtr ptr = Marshal.AllocHGlobal(size);
OpusStatusCode statusCode = Wrapper.opus_encoder_init(ptr, Fs, channels, application);
try
{
HandleStatusCode(statusCode);
}
catch (Exception ex)
{
if (ptr != IntPtr.Zero)
{
Wrapper.opus_encoder_destroy(ptr);
ptr = IntPtr.Zero;
}
throw ex;
}
return(ptr);
}
public OpusEncoder(SamplingRate inputSamplingRateHz, Channels numChannels, int bitrate, OpusApplicationType applicationType)
: this(inputSamplingRateHz, numChannels, bitrate, applicationType, Delay.Delay20ms)
{
}
private static extern OpusStatusCode opus_encoder_init(IntPtr st, SamplingRate Fs, Channels channels, OpusApplicationType application);
internal static extern OpusStatusCode opus_encoder_init(
[In] this Encoder st,
[In] SamplingRate Fs,
[In] Channels channels,
[In] OpusApplicationType application
);
opus_encoder_create(
[In] SamplingRate Fs,
[In] Channels channels,
[In] OpusApplicationType application,
[Out] out OpusStatusCode error
);
