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/external/lzma/Java/Tukaani/src/org/tukaani/xz/
LZMA2Options.java	`191 * and have higher compressor and decompressor memory requirements. 503 * make the compressor extremely slow with some files. Avoid settings`
/external/opencv3/3rdparty/openexr/IlmImf/
ImfPizCompressor.cpp	`175 Compressor (hdr), 246 Compressor::Format`
ImfB44Compressor.cpp	`40 // This compressor is lossy for HALF channels; the compression rate 95 // This compressor can handle positive and negative pixel values. 473 Compressor (hdr), 566 Compressor::Format`
/external/pdfium/third_party/libopenjpeg20/
jp2.h	`264 * @param jp2 JP2 compressor handle 277 @param jp2 JP2 compressor handle`
/hardware/intel/common/omx-components/videocodec/libvpx_internal/libvpx/vp9/encoder/
vp9_onyx_int.h	`192 int width; // width of data passed to the compressor 193 int height; // height of data passed to the compressor`
/external/chromium-trace/catapult/third_party/py_vulcanize/third_party/rcssmin/bench/
cssmin.py	4 """`cssmin` - A Python port of the YUI CSS compressor.
/external/libjpeg-turbo/java/doc/org/libjpegturbo/turbojpeg/
package-summary.html	`100 <div class="block">TurboJPEG compressor</div>`
/external/libopus/silk/
encode_indices.c	`37 ec_enc psRangeEnc, / I/O Compressor data structure */`
/external/libopus/silk/fixed/
main_FIX.h	`68 ec_enc psRangeEnc, / I/O compressor data structure */`
/external/libvncserver/libvncserver/
zlib.c	`199 * that we rely on the compressor and decompressor states being`
/frameworks/av/media/libeffects/lvm/lib/StereoWidening/lib/
LVCS.h	`204 LVM_Mode_en CompressorMode; /* Non-Linear Compressor Mode */`
/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/sysroot/usr/include/linux/
videodev.h	`218 /* but it could apply generically to any hardware compressor/decompressor */`
/system/update_engine/payload_generator/
payload_generation_config.h	`136 // Wheter the IMGDIFF operation is allowed based on the available compressor`
/external/aac/libAACenc/src/
metadata_compressor.cpp	`87 Description: Compressor for AAC Metadata Generator 140 * Dynamic Range Control compressor structure. 451 /* Return drc compressor instance / 664 compressor 779 /* level -= dialnorm + 31 / / this is fixed to Dolby-ReferenceLevel as compressor profiles are defined relative to this */ [all...]`
metadata_main.h	`168 * - Calculate DRC compressor and extract meta data info.`
/external/lz4/
LZ4_Frame_Format.html	1 <html><head><title>LZ4 Framing format - stable</title><meta content="text/html; charset=UTF-8" http-equiv="content-type"><style type="text/css">@import url('https://themes.googleusercontent.com/fonts/css?kit=wAPX1HepqA24RkYW1AuHYA');ol{margin:0;padding:0}.c13{max-width:453.6pt;background-color:#ffffff;padding:70.8pt 70.8pt 70.8pt 70.8pt}.c3{font-size:10pt;font-family:"Courier New";font-weight:bold}.c0{font-size:14pt;text-decoration:underline;font-weight:bold}.c8{color:inherit;text-decoration:inherit}.c1{text-decoration:underline;font-weight:bold}.c4{color:#1155cc;text-decoration:underline}.c7{line-height:1.0;padding-bottom:0pt}.c6{margin-left:36pt}.c12{font-style:italic}.c10{text-align:center}.c18{font-size:14pt}.c17{color:#0000ff}.c5{height:11pt}.c15{font-size:18pt}.c11{text-decoration:underline}.c2{direction:ltr}.c9{font-weight:bold}.c16{font-family:"Courier New"}.c14{margin-left:18pt}.title{padding-top:12pt;line-height:1.15;text-align:center;color:#000000;font-size:16pt;font-family:"Arial";font-weight:bold;padding-bottom:3pt}.subtitle{padding-top:0pt;line-height:1.15;text-align:center;color:#000000;font-size:11pt;font-family:"Arial";padding-bottom:3pt}li{color:#000000;font-size:11pt;font-family:"Calibri"}p{color:#000000;font-size:11pt;margin:0;font-family:"Calibri"}h1{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-size:16pt;font-family:"Arial";font-weight:bold;padding-bottom:3pt}h2{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-style:italic;font-size:14pt;font-family:"Arial";font-weight:bold;padding-bottom:3pt}h3{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-size:13pt;font-family:"Arial";font-weight:bold;padding-bottom:3pt}h4{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-size:14pt;font-family:"Calibri";font-weight:bold;padding-bottom:3pt}h5{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-style:italic;font-size:13pt;font-family:"Calibri";font-weight:bold;padding-bottom:3pt}h6{padding-top:12pt;line-height:1.15;text-align:left;color:#000000;font-size:11pt;font-family:"Calibri";font-weight:bold;padding-bottom:3pt}</style></head><body class="c13"><hr><p class="c10 c2"><span class="c15 c9">LZ4 </span><span class="c15 c9">Framing </span><span class="c15 c9">Format</span></p><hr><p class="c5 c2"><span class="c9 c15"></span></p><p class="c2"><span class="c0">Notices</span></p><p class="c2"><span>Copyright (c) 2013-2014 Yann Collet</span></p><p class="c2"><span>Permission is granted to copy and distribute this document for any  purpose and without charge, including translations into other  languages and incorporation into compilations, provided that the copyright notice and this notice are preserved, and that any substantive changes or deletions from the original are clearly marked.</span></p><p class="c2"><span class="c0">Version</span></p><p class="c2"><span>1.4.1</span></p><h1 class="c2"><a name="h.2z5bl598dfq9"></a><span>Introduction</span></h1><p class="c2"><span>The purpose of this document is to define a lossless compressed data format, that is independent of CPU type, operating system, file system and character set, suitable for File compression, Pipe and streaming compression using the LZ4 algorithm : </span><span class="c11 c17"><a class="c8" href="">http://code.google.com/p/lz4/</a></span></p><p class="c2"><span>The data can be produced or consumed, even for an arbitrarily long sequentially presented input data stream, using only an a priori bounded amount of intermediate storage, and hence can be used in data communications.  The format uses the LZ4 compression method, and </span><span class="c4"><a class="c8" href="http://code.google.com/p/xxhash/">xxHash-32</a></span><span> checksum method, for detection of data corruption.</span></p><p class="c2"><span>The data format defined by this specification does not attempt to allow random access to compressed data.</span></p><p class="c2"><span>This specification is intended for use by implementers of software to compress data into LZ4 format and/or decompress data from LZ4 format. The text of the specification assumes a basic background in programming at the level of bits and other primitive data representations.</span></p><p class="c2"><span>Unless otherwise indicated below, </span><span>a compliant compressor must produce data sets that conform to all the specifications presented here.</span></p><p class="c2"><span>A</span><span> compliant decompressor must be able to accept and decompress </span><span>at least one </span><span>data set that conforms to the specifications presented here</span><span>; whenever it does not support any parameter, it must produce a non-ambiguous error code and associated error message explaining which parameter value is unsupported (a typical example being an unsupported buffer size).</span></p><p class="c2"><span>Distribution of this document is unlimited.</span></p><p class="c7 c5 c2"><span></span></p><hr style="page-break-before:always;display:none;"><p class="c7 c5 c2"><span></span></p><p class="c2 c7"><span class="c0">Summary </span><span class="c1">:</span></p><p class="c7 c5 c2"><span></span></p><p class="c2 c14"><span class="c4"><a class="c8" href="#h.2z5bl598dfq9">Introduction</a></span></p><p class="c2 c14"><span class="c4">General structure of </span><span class="c4"><a class="c8" href="#h.1615sutikt7e">LZ4 Framing Format</a></span></p><p class="c2 c6"><span class="c4">Frame </span><span class="c4"><a class="c8" href="#h.uof0plru1f66">Descriptor</a></span></p><p class="c6 c2"><span class="c4"><a class="c8" href="#h.u8dkhfnwqyg">Data Blocks</a></span></p><p class="c2 c14"><span class="c4"><a class="c8" href="#h.152pfqac8luc">Skippable </a></span><span class="c4">Frames</span></p><p class="c2 c14"><span class="c4"><a class="c8" href="#h.ujcdmapf87vn">Legacy format</a></span></p><p class="c2 c14"><span class="c4"><a class="c8" href="#h.zij6fhosmkvv">Appendix</a></span></p><p class="c5 c2"><span></span></p><p class="c5 c2"><span class="c0"></span></p><hr style="page-break-before:always;display:none;"><p class="c5 c2"><span class="c0"></span></p><h1 class="c2"><a name="h.1615sutikt7e"></a><span class="c11">General Structure of </span><span class="c11">LZ4 Framing format</span></h1><p class="c5 c2 c10"><span class="c0"></span></p><p class="c10 c2"><span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 408.00px; height: 106.00px;"><img alt="LZ4 Framing Format - General Structure.png" src="images/image05.png" style="width: 408.00px; height: 106.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""></span></p><p class="c5 c2"><span class="c0"></span></p><p class="c2"><span class="c1">Magic Number</span></p><p class="c2"><span>4 Bytes, </span><span class="c11">Little endian</span><span> format.<br>Value : </span><span class="c9 c16">0x184D2204</span></p><p class="c5 c2"><span class="c3"></span></p><p class="c2"><span class="c1">Frame D</span><span class="c1">escriptor</span></p><p class="c2"><span>3</span><span> to 1</span><span>5</span><span> Bytes, to be detailed </span><span>in the next part.</span><span><br>Most </span><span>significant </span><span>part of the spec.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Data Blocks</span></p><p class="c2"><span>To be detailed later on.<br>That’s where compressed data is stored.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">EndMark</span></p><p class="c2"><span>The flow of </span><span>blocks </span><span>ends when the last data block has a size of “</span><span class="c9">0</span><span>”. </span><span><br></span><span>The size is expressed as </span><span>a </span><span>32-bits value.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Content Checksum</span></p><p class="c2"><span>Content Checksum verify that the full content has been decoded correctly.<br>The content checksum is the result of </span><span class="c4"><a class="c8" href="http://code.google.com/p/xxhash/">xxh32()</a></span><span> hash function digesting the original (decoded) data as input, and a seed of zero.<br>Content checksum is only present when its </span><span class="c4"><a class="c8" href="#id.s5zerkv6retr">associated flag </a></span><span>is set in the framing descriptor. Content Checksum validates the result, that all blocks were fully transmitted in the correct order and without error, and also that the encoding/decoding process itself generated no distortion. Its usage is recommended. </span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Frame Concatenation</span></p><p class="c2"><span>In some circumstances, it may be preferable </span><span>to append multiple frames, </span><span>for example </span><span>in order to add new data to an existing compressed file without re-framing it.</span></p><p class="c2"><span>In such case, each frame has its own set of descriptor flags. Each frame is considered independent. The only relation between frames is their sequential order.</span></p><p class="c2"><span>The ability to decode multiple concatenated frames within a single stream or file is left outside of this specification. While a logical default behavior could be to decode the frames in their sequential order, this is not a requirement. </span></p><p class="c5 c2"><span></span></p><hr style="page-break-before:always;display:none;"><p class="c5 c2"><span></span></p><h2 class="c2"><a name="h.uof0plru1f66"></a><span class="c11">Frame </span><span class="c11">Descriptor</span></h2><p class="c10 c2"><span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 292.00px; height: 106.00px;"><img alt="LZ4 Framing Format - Frame Descriptor.png" src="images/image03.png" style="width: 292.00px; height: 106.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""></span></p><p class="c10 c2"><span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 606.00px; height: 114.67px;"><img alt="LZ4 Framing Format - Descriptor Flags.png" src="images/image02.png" style="width: 606.00px; height: 114.67px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""></span></p><p class="c2"><span>The descriptor uses a minimum of </span><span>3</span><span> bytes</span><span>, and up to 15 bytes depending on optional parameters.</span><span><br>In the picture, bit 7 is highest bit, while bit 0 is lowest.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Version Number :</span></p><p class="c2"><span>2-bits field, </span><span class="c1">must</span><span class="c9"> </span><span>be set to “</span><span class="c9">01</span><span>”.<br>Any other value cannot be decoded by this </span><span>version of the specification.</span><span><br>Other version numbers will use different flag layouts.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Block </span><span class="c1">Independence </span><span class="c1">flag :</span></p><p class="c2"><span>If this flag is set to “1”</span><span>, blocks are independent, and can therefore be decoded independently, in parallel.<br>If this flag is set to “</span><span>0</span><span>”, each block depends on previous ones for decoding (up to LZ4 window size, which is 64 KB). In this case, it’s necessary to decode all blocks in sequence.</span></p><p class="c2"><span>Block </span><span>dependency</span><span> improves compression ratio, especially for small blocks. On the other hand, it makes jumps or multi-threaded decoding impossible.</span></p><p class="c5 c2"><span></span></p><a href="#" name="id.r4mqxzdxswxz"></a><p class="c2"><span class="c1">Block checksum flag :</span></p><p class="c2"><span>If this flag is set, e</span><span>ach data block will be followed by a 4-bytes checksum, calculated by using the xxHash-32 algorithm on the raw (compressed) data block.<br>The intention is to detect data corruption (storage or transmission errors) immediately, before decoding.<br>Block ch</span><span>ecksum usage is optional.</span></p><p class="c2 c5"><span></span></p><p class="c2"><span class="c1">Content </span><span class="c1">Size flag :</span></p><p class="c2"><span>If this flag is set, the original (uncompressed) size of data included within </span><span>the frame</span><span> will be present as an 8 bytes unsigned value, litt</span><span>le endian format, </span><span>after the flags.</span></p><p class="c2"><span>Recommended </span><span>value : “</span><span class="c9">0</span><span>” (not present)</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Content checksum flag :</span></p><p class="c2"><span>If this flag is set, a</span><span class="c4"><a class="c8" href="#id.q3958klk497z"> content checksum</a></span><span> will be appended after the EoS mark.</span></p><p class="c2"><span>Recommended value : “</span><span class="c9">1</span><span>” (content checksum is present)</span></p><p class="c5 c2"><span></span></p><a href="#" name="id.yebseq7uuwc4"></a><p class="c2"><span class="c1">Preset Dictionary flag :</span></p><p class="c2"><span>If this flag is set, a Dict-ID field will be present, just after the descriptor flags and the </span><span>Content </span><span>size.</span></p><p class="c2"><span>Usual </span><span>value : “</span><span class="c9">0</span><span>” (not present)</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Block Maximum Size :</span></p><p class="c2"><span>This information is intended to help the decoder allocate the right amount of memory.<br>Size here refers to the original (uncompressed) data size.<br>Block Maximum Size </span><span>is</span><span> one value among the fol</span><span>lowing table : </span></p><p class="c10 c2"><span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 331.00px; height: 56.00px;"><img alt="" src="images/image04.png" style="width: 331.00px; height: 56.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""></span></p><p class="c2"><span>The decoder may refuse to allocate block sizes above a (system-specific) size.<br>Unused values may be used in a future revision of the spec.<br>A decoder conformant to the current version of the spec is only able to decode blocksizes defined in this spec.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Reserved bits :</span></p><p class="c2"><span>Value of reserved bits </span><span class="c1">must </span><span>be </span><span class="c9">0</span><span> (zero).<br>Reserved bit might be used in a future version of the specification, to enable any (yet-to-decide) optional feature.<br>If this happens, a decoder respecting the current version of the specification shall not be able to decode such a frame.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Content Size</span></p><p class="c2"><span>This is the original (uncompressed) size. <br>This information is optional, and only present if the </span><span class="c4"><a class="c8" href="#id.tqyy099hxhnn">associated flag is set</a></span><span>.<br>Content size is provided using unsigned 8 Bytes, for a maximum of 16 HexaBytes.<br>Format is Little endian.<br>This field has no impact on decoding, it just informs the decoder how much data the frame holds (for example, to display it during decoding process, or for verification purpose). It can be safely skipped by a conformant decoder.</span></p><p class="c5 c2"><span></span></p><p class="c2"><span class="c1">Dictionary ID</span></p><p class="c2"><span>Dict-ID is only present if</span><span class="c4"><a class="c8" href="#id.yebseq7uuwc4"> the associated flag is set</a></span><span>.<br>A dictionary is specially useful to compress short input sequences. The compressor can take advantage of the dictionary context to encode the input in a more compact manner. It works as a kind of “known prefix” which is used by both the compressor and the decompressor to “warm-up” reference tables and help compress small data blocks.</span></p><p class="c2"><span>Dict-ID is the xxHash-32 checksum of this “known prefix”. Format is Little endian.</span></p><p class="c2"><span>The decompressor uses this identifier to determine which dictionary has been used by the compressor. The compressor and the decompressor must use exactly the same dictionary. This document does not specify the cont (…)
/prebuilts/tools/common/m2/repository/io/grpc/grpc-all/0.13.2/
grpc-all-0.13.2.jar
/prebuilts/tools/common/m2/repository/io/grpc/grpc-core/0.13.2/
grpc-core-0.13.2.jar
/external/opencv3/3rdparty/zlib/
zlib.h	303 the data provided so far to the compressor. It may need to wait for the next 457 saved by the compressor for this purpose.) The use of Z_FINISH is not 476 chosen by the compressor and returns Z_NEED_DICT; otherwise it sets 480 checksum is equal to that saved by the compressor and returns Z_STREAM_END 599 compressor and decompressor must use exactly the same dictionary (see 619 which dictionary has been used by the compressor. (The adler32 value 621 actually used by the compressor.) If a raw deflate was requested, then the [all...]
/external/pdfium/third_party/zlib_v128/
zlib.h	`372 the data provided so far to the compressor. It may need to wait for the next 526 saved by the compressor for this purpose.) The use of Z_FINISH is not 545 chosen by the compressor and returns Z_NEED_DICT; otherwise it sets 549 checksum is equal to that saved by the compressor and returns Z_STREAM_END [all...]`
/external/zlib/src/
zlib.h	303 the data provided so far to the compressor. It may need to wait for the next 457 saved by the compressor for this purpose.) The use of Z_FINISH is not 476 chosen by the compressor and returns Z_NEED_DICT; otherwise it sets 480 checksum is equal to that saved by the compressor and returns Z_STREAM_END 599 compressor and decompressor must use exactly the same dictionary (see 619 which dictionary has been used by the compressor. (The adler32 value 621 actually used by the compressor.) If a raw deflate was requested, then the [all...]
/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/sysroot/usr/include/
zlib.h	302 the data provided so far to the compressor. It may need to wait for the next 455 by the compressor for this purpose.) The next operation on this stream must 468 chosen by the compressor and returns Z_NEED_DICT; otherwise it sets 472 checksum is equal to that saved by the compressor and returns Z_STREAM_END 581 call of deflate. The compressor and decompressor must use exactly the same 601 which dictionary has been used by the compressor. (The adler32 value 603 actually used by the compressor.) If a raw deflate was requested, then the [all...]
/external/squashfs-tools/
CHANGES	`3 4.3 12 MAY 2014 New compressor options, new Mksquashfs/Unsquashfs 89 - mksquashfs: redo -comp <compressor> parsing 90 - mksquashfs: display compressor options when -X option isn't recognised`
/external/ImageMagick/ImageMagick/script/
webp.html	`149 <td>a target size (in bytes) to try and reach for the compressed output. The compressor makes several passes of partial encoding in order to get as close as possible to this target.</td>`
/external/ImageMagick/www/
webp.html	`153 <td>a target size (in bytes) to try and reach for the compressed output. The compressor makes several passes of partial encoding in order to get as close as possible to this target.</td>`

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