// copies huffman tables from parsed stream. should require same scans structure
public void CopyHuffmanTables(EncoderParams encoderParams, JpegStream jpeg, CudaStream stream)
{
res = NvJpegNativeMethods.nvjpegEncoderParamsCopyHuffmanTables(_state, encoderParams.Params, jpeg.Stream, stream.Stream);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvjpegEncoderParamsCopyHuffmanTables", res));
if (res != nvjpegStatus.Success)
{
throw new NvJpegException(res);
}
}
// starts decoding on host and save decode parameters to the state
public void DecodeJpegHost(DecodeParams param, JpegStream stream)
{
res = NvJpegNativeMethods.nvjpegDecodeJpegHost(_nvJpeg.Handle, _decoder.Decoder, _state, param.Params, stream.Stream);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvjpegDecodeJpegHost", res));
if (res != nvjpegStatus.Success)
{
throw new NvJpegException(res);
}
}
// hybrid stage of decoding image, involves device async calls
// note that jpeg stream is a parameter here - because we still might need copy
// parts of bytestream to device
public void DecodeJpegTransferToDevice(JpegStream jpegStream, CudaStream cudaStream)
{
res = NvJpegNativeMethods.nvjpegDecodeJpegTransferToDevice(_nvJpeg.Handle, _decoder.Decoder, _state, jpegStream.Stream, cudaStream.Stream);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvjpegDecodeJpegTransferToDevice", res));
if (res != nvjpegStatus.Success)
{
throw new NvJpegException(res);
}
}
public bool JpegSupported(DecodeParams param, JpegStream stream)
{
int result = 0;
res = NvJpegNativeMethods.nvjpegDecoderJpegSupported(_decoder, stream.Stream, param.Params, ref result);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvjpegDecoderJpegSupported", res));
if (res != nvjpegStatus.Success)
{
throw new NvJpegException(res);
}
return(result > 0);
}