DNG only supports JPEG compression schemes - lossless, or in later versions of the spec, lossy as well.
Would'nt that be just baseline huffman encoding ?
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Lossless is Huffman based, lossy is JPEG DCT.
Is there a study that compared the encoding speeds of the 3 algorithms available for RAW files ?
LZW, Packbits, Deflate.
I think Lossless JPEG can also work with 1 plane setting.
Also, looking at the dng_validate code, and the calls to relevant libraries, I see that the code seems to deal only with byte boundaries.
Are any of these algorithms optimized for 10,12,14-bit RAW data ?
I am trying to encode 203 MBps of data. Intel IPP would be an option, but its obviously nicer if DNG SDK can provide whats needed for free with some tweaking.