1///////////////////////////////////////////////////////////////////////////
2//
3// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
4// Digital Ltd. LLC
5//
6// All rights reserved.
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33///////////////////////////////////////////////////////////////////////////
34
35
36
37#ifndef INCLUDED_IMF_COMPRESSION_H
38#define INCLUDED_IMF_COMPRESSION_H
39
40//-----------------------------------------------------------------------------
41//
42// enum Compression
43//
44//-----------------------------------------------------------------------------
45#include "ImfNamespace.h"
46
47OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
48
49enum Compression
50{
51 NO_COMPRESSION = 0, // no compression
52
53 RLE_COMPRESSION = 1, // run length encoding
54
55 ZIPS_COMPRESSION = 2, // zlib compression, one scan line at a time
56
57 ZIP_COMPRESSION = 3, // zlib compression, in blocks of 16 scan lines
58
59 PIZ_COMPRESSION = 4, // piz-based wavelet compression
60
61 PXR24_COMPRESSION = 5, // lossy 24-bit float compression
62
63 B44_COMPRESSION = 6, // lossy 4-by-4 pixel block compression,
64 // fixed compression rate
65
66 B44A_COMPRESSION = 7, // lossy 4-by-4 pixel block compression,
67 // flat fields are compressed more
68
69 DWAA_COMPRESSION = 8, // lossy DCT based compression, in blocks
70 // of 32 scanlines. More efficient for partial
71 // buffer access.
72
73 DWAB_COMPRESSION = 9, // lossy DCT based compression, in blocks
74 // of 256 scanlines. More efficient space
75 // wise and faster to decode full frames
76 // than DWAA_COMPRESSION.
77
78 NUM_COMPRESSION_METHODS // number of different compression methods
79};
80
81OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
82
83
84#endif
85

source code of include/OpenEXR/ImfCompression.h