Current File : //usr/include/OpenEXR/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
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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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