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//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//
#ifndef INCLUDED_IMF_COMPRESSION_H
#define INCLUDED_IMF_COMPRESSION_H
//-----------------------------------------------------------------------------
//
// enum Compression
//
//-----------------------------------------------------------------------------
#include "ImfExport.h"
#include "ImfNamespace.h"
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
enum IMF_EXPORT_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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