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FLAC - Free Lossless Audio Codec

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  Analyzed 10 months ago

FLAC is a Free Lossless Audio Codec. The FLAC format supports streaming, seeking, and archival, and gives 25-75% compression on typical CD audio. Input plugins for Winamp and XMMS are also provided.

148K lines of code

18 current contributors

over 1 year since last commit

518 users on Open Hub

Activity Not Available
4.70103
   
I Use This
Licenses: BSD-3-Clause, gpl

libpng

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  Analyzed 7 months ago

libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 17 years. libpng is available as ANSI C source code and requires zlib 1.0.4 or later (1.2.3 or 1.1.4 recommended due to potential security vulnerabilities in ... [More] earlier versions). In addition to the main library sources, libpng includes the rpng, rpng2 and wpng demo programs, the pngminus demo program, a subset of Willem van Schaik's PngSuite test images, and Willem's VisualPng demo program. Configure, CMake, Visualc projects, and various makefiles are included for building libpng. Libpng is under the libpng license. [Less]

462K lines of code

0 current contributors

over 1 year since last commit

348 users on Open Hub

Activity Not Available
4.26316
   
I Use This

zlib

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  Analyzed about 4 hours ago

zlib is designed to be a free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and operating system. The zlib data format is itself portable across platforms. Unlike the LZW compression ... [More] method used in Unix compress(1) and in the GIF image format, the compression method currently used in zlib essentially never expands the data. (LZW can double or triple the file size in extreme cases.) zlib's memory footprint is also independent of the input data and can be reduced, if necessary, at some cost in compression. [Less]

53.5K lines of code

0 current contributors

5 months since last commit

162 users on Open Hub

Very Low Activity
4.25
   
I Use This

optipng

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  Analyzed over 2 years ago

OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.

114K lines of code

0 current contributors

almost 10 years since last commit

6 users on Open Hub

Activity Not Available
4.66667
   
I Use This

Imebra

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  Analyzed over 1 year ago

Imebra is a multiplatform open source C++ Dicom library. The library can handle Dicom3, NEMA and Jpeg files and supplies both high-level and raw access to the loaded data. The embedded images can be easily decompressed or converted to other color formats or bit depth; writing Dicom Viewers or ... [More] other applications is a quick and easy task. Imebra also supports the Unicode standard (on the fly conversion to/from Dicom charsets) and the delayed-loading of large tags. [Less]

67.1K lines of code

1 current contributors

over 1 year since last commit

3 users on Open Hub

Activity Not Available
5.0
 
I Use This
Licenses: commercia..., GPL2

Lzip

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  Analyzed over 2 years ago

Lzip is a lossless data compressor with a user interface similar to the one of gzip or bzip2. Lzip decompresses almost as fast as gzip and compresses more than bzip2, which makes it well suited for software distribution and data archiving. Lzip is a clean implementation of the LZMA algorithm. The ... [More] Lzip file format is designed for long-term data archiving. It is clean, provides very safe four factor integrity checking, and is backed by the recovery capabilities of lziprecover. [Less]

0 lines of code

0 current contributors

0 since last commit

2 users on Open Hub

Activity Not Available
3.0
   
I Use This
Mostly written in language not available
Licenses: gpl3_or_l...

ImageOptim

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  Analyzed 3 months ago

PNG and JPEG image optimizer for Mac OS X. Makes images smaller without loss of quality.

6.9K lines of code

2 current contributors

9 months since last commit

2 users on Open Hub

Activity Not Available
5.0
 
I Use This

WavPack

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  Analyzed about 14 hours ago

WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a unique hybrid compression mode. WavPack employs only well known, public domain techniques (i.e., linear prediction with LMS adaptation, Elias and Golomb codes) in its implementation. Methods and ... [More] algorithms that have ever been patented (e.g., arithmetic coding, LZW compression) are specifically avoided. This ensures that WavPack encoders and decoders will remain open and royalty-free. [Less]

55.9K lines of code

6 current contributors

3 days since last commit

2 users on Open Hub

Moderate Activity
5.0
 
I Use This

libPGF

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  Analyzed over 1 year ago

libPGF contains an implementation of the Progressive Graphics File (PGF). which is a new image file format, that is based on a discrete, fast wavelet transform with progressive coding features. PGF can be used for lossless and lossy compression.

72.8K lines of code

0 current contributors

over 3 years since last commit

2 users on Open Hub

Activity Not Available
4.5
   
I Use This

theFrontend

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  Analyzed over 2 years ago

theFrontend is an audio conversion software with graphical user interface for Windows. This is an Open Source and easy to use software for everyone. Easy usage with predefined presets for newbies and xml-based configuration files and command-line interface for advanced users. Full UNICODE support ... [More] and no additional dependences on external DLL libraries for main program (some tools may require additional DLLs). [Less]

0 lines of code

0 current contributors

0 since last commit

1 users on Open Hub

Activity Not Available
5.0
 
I Use This
Mostly written in language not available
Licenses: gpl