| /external/grpc-grpc/doc/ |
| D | compression_cookbook.md | 5 This document describes compression as implemented by the gRPC C core. See [the
6 full compression specification](compression.md) for details.
10 Wrapped languages developers, for the purposes of supporting compression by
15 1. Be able to set compression at [channel](#per-channel-settings),
20 spec](https://github.com/grpc/grpc/blob/master/doc/compression.md#test-cases).
31 still not symmetric between clients and servers (e.g. the [use of compression
32 levels](https://github.com/grpc/grpc/blob/master/doc/compression.md#compression-levels-and-algorith…
47 document](https://github.com/grpc/grpc/blob/master/doc/compression.md#compression-levels-and-algori…
48 compression _levels_ are the primary mechanism for compression selection _at the
52 As of this writing (Q2 2016), clients can only specify compression _algorithms_.
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| D | compression.md | 10 compression supported by gRPC acts _at the individual message level_, taking
14 The implementation supports different compression algorithms. A _default
15 compression level_, to be used in the absence of message-specific settings, MAY
18 The ability to control compression settings per call and to enable/disable
19 compression on a per message basis MAY be used to prevent CRIME/BEAST attacks.
20 It also allows for asymmetric compression communication, whereby a response MAY
26 appropriate API method. There are two scenarios where compression MAY be
29 + At channel creation time, which sets the channel default compression and
30 therefore the compression that SHALL be used in the absence of per-RPC
31 compression configuration.
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| /external/lzma/DOC/ |
| D | lzma-sdk.txt | 6 use 7z / LZMA / LZMA2 / XZ compression.
8 LZMA is an improved version of famous LZ77 compression algorithm.
9 It was improved in way of maximum increasing of compression ratio,
13 LZMA2 is a LZMA based compression method. LZMA2 provides better
14 multithreading support for compression than LZMA and some other improvements.
16 7z is a file format for data compression and file archiving.
17 7z is a main file format for 7-Zip compression program (www.7-zip.org).
18 7z format supports different compression methods: LZMA, LZMA2 and others.
21 XZ is a file format for data compression that uses LZMA2 compression.
23 improved compression ratio, splitting to blocks and streams,
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| /external/squashfs-tools/RELEASE-READMEs/ |
| D | README-4.3 | 8 there are substantial improvements to stability, new compression options
22 2. GZIP compressor now supports compression options, allowing different
23 compression levels to be used.
25 3. Rewritten LZO compressor with compression options, allowing different
26 LZO algorithms and different compression levels to be used.
38 7. The -stat option in Unsquashfs now displays the compression options
40 the compression algorithm used.
65 New compression options and compressors are now supported.
70 -Xcompression-level <compression-level>
71 <compression-level> should be 1 .. 9 (default 9)
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| D | README-4.2 | 13 1. Support for XZ compression
23 XZ compression
26 Squashfs now supports XZ compression.
35 Compression algorithms can now support compression specific options. These
38 The compression specific options supported by each compressor can be
48 (in addition to no filter), and choose the best compression.
|
| /external/lz4/programs/ |
| D | lz4.1.md | 21 `lz4` is an extremely fast lossless compression algorithm,
22 based on **byte-aligned LZ77** family of compression scheme.
23 `lz4` offers compression speeds of 400 MB/s per core, linearly scalable with
37 * `lz4 file.lz4` will default to decompression (use `-z` to force compression)
39 during compression or decompression of a single file
61 on successful compression or decompression, using `--rm` command.
101 `-z` can also be used to force compression of an already compressed
115 Benchmark mode, using `#` compression level.
121 Higher values trade compression speed for compression ratio.
123 Recommended values are 1 for fast compression (default),
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| D | README.md | 17 CLI includes in-memory compression benchmark module for lz4.
22 The benchmark measures ratio, compressed size, compression and decompression speed.
23 One can select compression levels starting from `-b` and ending with `-e`.
37 -1 : Fast compression (default)
38 -9 : High compression
40 -z : force compression
42 --rm : remove source file(s) after successful de/compression
53 -l : compress using Legacy format (Linux kernel compression)
55 -BD : Block dependency (improve compression ratio)
60 -b# : benchmark file(s), using # compression level (default : 1)
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| /external/python/cpython3/Lib/test/ |
| D | test_zipfile.py | 56 def make_test_archive(self, f, compression, compresslevel=None): argument
57 kwargs = {'compression': compression, 'compresslevel': compresslevel}
67 def zip_test(self, f, compression, compresslevel=None): argument
68 self.make_test_archive(f, compression, compresslevel)
71 with zipfile.ZipFile(f, "r", compression) as zipfp:
123 self.zip_test(f, self.compression)
125 def zip_open_test(self, f, compression): argument
126 self.make_test_archive(f, compression)
129 with zipfile.ZipFile(f, "r", compression) as zipfp:
151 self.zip_open_test(f, self.compression)
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| /external/zopfli/ |
| D | README.zopflipng | 3 - uses Zopfli compression for the Deflate compression,
9 compression, and,
18 The main compression algorithm in ZopfliPNG is ported from WebP lossless, but
19 naturally cannot give as much compression gain for PNGs as it does for a more
20 modern compression codec like WebP
24 2-3 orders of magnitude more CPU time for compression. Initial testing using a
26 gives a compression improvement of 12% compared to convert -q 95, but only 0.5%
|
| /external/u-boot/doc/uImage.FIT/ |
| D | multi.its | 18 compression = "gzip";
35 compression = "gzip";
49 compression = "gzip";
63 compression = "gzip";
77 compression = "gzip";
90 compression = "none";
101 compression = "none";
|
| D | multi_spl.its | 27 compression = "none";
35 compression = "none";
44 compression = "none";
51 compression = "none";
59 compression = "none";
67 compression = "none";
75 compression = "none";
|
| /external/ImageMagick/coders/ |
| D | ps2.c | 388 compression; in WritePS2Image() local
470 compression=image->compression; in WritePS2Image()
471 if (image_info->compression != UndefinedCompression) in WritePS2Image()
472 compression=image_info->compression; in WritePS2Image()
473 switch (compression) in WritePS2Image()
478 compression=RLECompression; in WritePS2Image()
625 switch (compression) in WritePS2Image()
710 compression == NoCompression ? "ASCII" : "Binary"); in WritePS2Image()
739 if ((compression == FaxCompression) || (compression == Group4Compression) || in WritePS2Image()
748 ((compression != FaxCompression) && in WritePS2Image()
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| D | ps3.c | 433 Image *image,const CompressionType compression,ExceptionInfo *exception) in WritePS3MaskImage() argument
476 "%%%%BeginData:%13ld %s Bytes\n",0L,compression == NoCompression ? in WritePS3MaskImage()
485 switch (compression) in WritePS3MaskImage()
540 switch (compression) in WritePS3MaskImage()
560 if ((compression == FaxCompression) || in WritePS3MaskImage()
612 compression == NoCompression ? "ASCII" : "BINARY"); in WritePS3MaskImage()
824 compression; in WritePS3Image() local
898 compression=image->compression; in WritePS3Image()
899 if (image_info->compression != UndefinedCompression) in WritePS3Image()
900 compression=image_info->compression; in WritePS3Image()
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| D | exr.c | 426 compression, in WriteEXRImage() local
463 compression=IMF_NO_COMPRESSION; in WriteEXRImage()
464 if (write_info->compression == ZipSCompression) in WriteEXRImage()
465 compression=IMF_ZIPS_COMPRESSION; in WriteEXRImage()
466 if (write_info->compression == ZipCompression) in WriteEXRImage()
467 compression=IMF_ZIP_COMPRESSION; in WriteEXRImage()
468 if (write_info->compression == PizCompression) in WriteEXRImage()
469 compression=IMF_PIZ_COMPRESSION; in WriteEXRImage()
470 if (write_info->compression == Pxr24Compression) in WriteEXRImage()
471 compression=IMF_PXR24_COMPRESSION; in WriteEXRImage()
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| D | pdf.c | 1270 compression; in WritePDFImage() local
1375 if (image_info->compression == JPEG2000Compression) in WritePDFImage()
1523 compression=image->compression; in WritePDFImage()
1524 if (image_info->compression != UndefinedCompression) in WritePDFImage()
1525 compression=image_info->compression; in WritePDFImage()
1526 switch (compression) in WritePDFImage()
1533 compression=RLECompression; in WritePDFImage()
1539 compression=RLECompression; in WritePDFImage()
1549 compression=RLECompression; in WritePDFImage()
1559 compression=RLECompression; in WritePDFImage()
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| /external/brotli/c/tools/ |
| D | brotli.md | 13 `brotli` is a generic-purpose lossless compression algorithm that compresses
15 coding and 2-nd order context modeling, with a compression ratio comparable to
16 the best currently available general-purpose compression methods. It is similar
17 in speed with deflate but offers more dense compression.
33 * default mode is compression;
59 compression level (0-9); bigger values cause denser, but slower compression
77 compression level (0-11); bigger values cause denser, but slower compression
92 use best compression level (default); same as "`-q 11`"
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| /external/python/cpython2/Lib/test/ |
| D | test_zipfile.py | 53 def make_test_archive(self, f, compression): argument
55 with zipfile.ZipFile(f, "w", compression) as zipfp:
60 def zip_test(self, f, compression): argument
61 self.make_test_archive(f, compression)
64 with zipfile.ZipFile(f, "r", compression) as zipfp:
122 def zip_open_test(self, f, compression): argument
123 self.make_test_archive(f, compression)
126 with zipfile.ZipFile(f, "r", compression) as zipfp:
170 def zip_random_open_test(self, f, compression): argument
171 self.make_test_archive(f, compression)
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| /external/libcups/cups/ |
| D | testfile.c | 42 static int read_write_tests(int compression);
450 read_write_tests(int compression) /* I - Use compression? */ in read_write_tests() argument
486 printf("cupsFileOpen(write%s): ", compression ? " compressed" : ""); in read_write_tests()
488 fp = cupsFileOpen(compression ? "testfile.dat.gz" : "testfile.dat", in read_write_tests()
489 compression ? "w9" : "w"); in read_write_tests()
500 if (cupsFileCompression(fp) == compression) in read_write_tests()
505 compression); in read_write_tests()
631 fp = cupsFileOpen(compression ? "testfile.dat.gz" : "testfile.dat", "r"); in read_write_tests()
664 if (cupsFileCompression(fp) == compression) in read_write_tests()
669 compression); in read_write_tests()
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| /external/python/cpython3/Doc/library/ |
| D | bz2.rst | 1 :mod:`bz2` --- Support for :program:`bzip2` compression
5 :synopsis: Interfaces for bzip2 compression and decompression.
17 decompressing data using the bzip2 compression algorithm.
24 incremental (de)compression.
26 (de)compression.
31 (De)compression of files
87 ``1`` and ``9`` specifying the level of compression: ``1`` produces the
88 least compression, and ``9`` (default) produces the most compression.
138 Incremental (de)compression
144 incrementally. For one-shot compression, use the :func:`compress` function
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| /external/grpc-grpc/src/core/lib/surface/ |
| D | byte_buffer.cc | 36 grpc_compression_algorithm compression) { in grpc_raw_compressed_byte_buffer_create() argument
41 bb->data.raw.compression = compression; in grpc_raw_compressed_byte_buffer_create()
56 bb->data.raw.compression = GRPC_COMPRESS_NONE; in grpc_raw_byte_buffer_from_reader()
70 bb->data.raw.compression); in grpc_byte_buffer_copy()
|
| /external/lz4/ |
| D | README.md | 1 LZ4 - Extremely fast compression
4 LZ4 is lossless compression algorithm,
5 providing compression speed > 500 MB/s per core,
12 which trades compression ratio for faster speed.
13 On the other end, a high compression derivative, LZ4_HC, is also provided,
14 trading CPU time for improved compression ratio.
17 …is also compatible with [dictionary compression](https://github.com/facebook/zstd#the-case-for-sma…
53 Benchmark evaluates the compression of reference [Silesia Corpus]
100 The raw LZ4 block compression format is detailed within [lz4_Block_format].
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| /external/tensorflow/tensorflow/core/api_def/base_api/ |
| D | api_def_EncodePng.pbtxt | 16 name: "compression"
31 The ZLIB compression level, `compression`, can be -1 for the PNG-encoder
32 default or a value from 0 to 9. 9 is the highest compression level, generating
|
| /external/brotli/ |
| D | README | 3 Brotli is a generic-purpose lossless compression algorithm that compresses data
5 and 2nd order context modeling, with a compression ratio comparable to the best
6 currently available general-purpose compression methods. It is similar in speed
7 with deflate but offers more dense compression.
|
| /external/webrtc/webrtc/voice_engine/include/ |
| D | voe_file.h | 115 CodecInst* compression = NULL,
123 CodecInst* compression = NULL) = 0;
127 CodecInst* compression = NULL,
132 CodecInst* compression = NULL) = 0;
|
| /external/webrtc/webrtc/voice_engine/ |
| D | voe_file_impl.h | 65 CodecInst* compression = NULL,
70 CodecInst* compression = NULL) override;
77 CodecInst* compression = NULL,
81 CodecInst* compression = NULL) override;
|