[CommandHipc(2)] // 3.0.0+
// InitializeForMultiStream(u32, handle<copy>, buffer<unknown<0x110>, 0x19>) -> object<nn::codec::detail::IHardwareOpusDecoder>
public ResultCode InitializeForMultiStream(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParameters parameters = context.Memory.Read <OpusMultiStreamParameters>(parametersAddress);
MakeObject(context, new IHardwareOpusDecoder(parameters.SampleRate, parameters.ChannelsCount, OpusDecoderFlags.None));
// Close transfer memory immediately as we don't use it.
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
return(ResultCode.Success);
}
[CommandHipc(3)] // 3.0.0+
// GetWorkBufferSizeForMultiStream(buffer<unknown<0x110>, 0x19>) -> u32
public ResultCode GetWorkBufferSizeForMultiStream(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParameters parameters = context.Memory.Read <OpusMultiStreamParameters>(parametersAddress);
int opusDecoderSize = GetOpusMultistreamDecoderSize(parameters.NumberOfStreams, parameters.NumberOfStereoStreams);
int streamSize = BitUtils.AlignUp(parameters.NumberOfStreams * 1500, 64);
int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * 1920 / (48000 / parameters.SampleRate), 64);
int totalSize = opusDecoderSize + streamSize + frameSize;
context.ResponseData.Write(totalSize);
return(ResultCode.Success);
}