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✏️ Editing: ImfCompression.h

///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
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///////////////////////////////////////////////////////////////////////////

#ifndef INCLUDED_IMF_COMPRESSION_H
#define INCLUDED_IMF_COMPRESSION_H

//-----------------------------------------------------------------------------
//
//	enum Compression
//
//-----------------------------------------------------------------------------
#include "ImfNamespace.h"

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER

enum Compression
{
    NO_COMPRESSION  = 0,	// no compression

RLE_COMPRESSION = 1,	// run length encoding

ZIPS_COMPRESSION = 2,	// zlib compression, one scan line at a time

ZIP_COMPRESSION = 3,	// zlib compression, in blocks of 16 scan lines

PIZ_COMPRESSION = 4,	// piz-based wavelet compression

PXR24_COMPRESSION = 5,	// lossy 24-bit float compression

B44_COMPRESSION = 6,	// lossy 4-by-4 pixel block compression,
    				// fixed compression rate

B44A_COMPRESSION = 7,	// lossy 4-by-4 pixel block compression,
    				// flat fields are compressed more

DWAA_COMPRESSION = 8,       // lossy DCT based compression, in blocks
                                // of 32 scanlines. More efficient for partial
                                // buffer access.

DWAB_COMPRESSION = 9,       // lossy DCT based compression, in blocks
                                // of 256 scanlines. More efficient space
                                // wise and faster to decode full frames
                                // than DWAA_COMPRESSION.

NUM_COMPRESSION_METHODS	// number of different compression methods
};

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT

#endif

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