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ImfCompression.h
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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 
48 
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 
82 
83 
84 #endif
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
Definition: ImfNamespace.h:109
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
Definition: ImfNamespace.h:108
Compression