The media-libs category contains media-related libraries.
| a52dec | library for decoding ATSC A/52 streams used in DVD |
|---|---|
| aalib | A ASCII-Graphics Library |
| adplug | A free, cross-platform, hardware independent AdLib sound player library |
| aften | An A/52 (AC-3) audio encoder |
| aldumb | Allegro support for DUMB (an IT, XM, S3M, and MOD player library) |
| allegro | Cross-platform library aimed at video game and multimedia programming |
| alsa-lib | Advanced Linux Sound Architecture Library |
| alsa-oss | Advanced Linux Sound Architecture OSS compatibility layer |
| alsa-topology-conf | ALSA topology configuration files |
| alsa-ucm-conf | ALSA ucm configuration files |
| alure | The OpenAL Utility Toolkit |
| ampache_browser | Ampache desktop client library |
| aribb24 | Library for decoding ARIB STD-B24 subtitles |
| assimp | Importer library to import assets from 3D files |
| aubio | Library for audio labelling |
| audiofile | An elegant API for accessing audio files |
| avidemux-core | Core libraries for simple video cutting, filtering and encoding tasks |
| avidemux-plugins | Plugins for the video editor media-video/avidemux |
| babl | A dynamic, any to any, pixel format conversion library |
| bcg729 | encoder and decoder of the ITU G729 Annex A/B speech codec |
| bio2jack | A library for porting blocked I/O OSS/ALSA audio applications to JACK |
| blib | blib is a library full of useful things to hack the Blinkenlights |
| cal3d | Cal3D is a skeletal based character animation library |
| chromaprint | Library implementing a custom algorithm for extracting audio fingerprints |
| cimg | C++ template image processing toolkit |
| clutter | Clutter is a library for creating graphical user interfaces |
| clutter-gst | GStreamer integration library for Clutter |
| clutter-gtk | Library for embedding a Clutter canvas (stage) in GTK+ |
| codec2 | Low bit rate speech codec |
| cogl | A library for using 3D graphics hardware to draw pretty pictures |
| coin | A high-level 3D graphics toolkit, fully compatible with SGI Open Inventor 2.1 |
| compface | Utilities and library to convert to/from X-Face format |
| ctl | AMPAS' Color Transformation Language |
| dav1d | dav1d is an AV1 Decoder :) |
| devil | DevIL image library |
| dssi | Plugin API for software instruments with user interfaces |
| dumb | IT/XM/S3M/MOD player library with click removal and IT filters |
| elles_icc_profiles | Elle Stone's well-behaved RGB and grey ICC profiles |
| esdl | Erlang bindings for the SDL library |
| exempi | Port of the Adobe XMP SDK to work on UNIX |
| exiftool | Read and write meta information in image, audio and video files |
| faac | Free MPEG-4 audio codecs by AudioCoding.com |
| faad2 | AAC audio decoding library |
| fdk-aac | Fraunhofer AAC codec library |
| ffmpegsource | A libav/ffmpeg based source library for easy frame accurate access |
| fidlib | Run-time filter design and execution library |
| Field3D | A library for storing voxel data |
| flac | free lossless audio encoder and decoder |
| flickcurl | C library for the Flickr API |
| fluidsynth-dssi | DSSI Soft Synth Interface |
| fontconfig | A library for configuring and customizing font access |
| fontconfig-infinality | Configuration for freetype-infinality subpixel hinting |
| fontconfig-ultimate | A set of font rendering and replacement rules for fontconfig-infinality |
| freealut | The OpenAL Utility Toolkit |
| freeglut | A free OpenGL utility toolkit, the open-sourced alternative to the GLUT library |
| freeimage | Image library supporting many formats |
| freetype | A high-quality and portable font engine |
| freeverb3 | Reverb and Impulse Response Convolution plug-ins (Audacious/JACK) |
| ftgl | library to use arbitrary fonts in OpenGL applications |
| game-music-emu | Video game music file emulators |
| ganv | A GTK+ widget for interactive graph-like environments |
| gavl | library for handling uncompressed audio and video data |
| gd | Graphics library for fast image creation |
| gegl | A graph based image processing framework |
| gexiv2 | GObject-based wrapper around the Exiv2 library |
| giblib | a graphics library built on top of imlib2 |
| giflib | Library to handle, display and manipulate GIF images |
| glew | The OpenGL Extension Wrangler Library |
| glfw | The Portable OpenGL FrameWork |
| glm | OpenGL Mathematics |
| glpng | An OpenGL PNG image library |
| glu | The OpenGL Utility Library |
| glyr | Music related metadata searchengine, both with commandline interface and C API |
| gmmlib | Intel Graphics Memory Management Library |
| gmtk | GTK+ widget and function libraries for gnome-mplayer |
| gnonlin | Set of GStreamer elements to ease the creation of non-linear multimedia editors |
| graphene | A thin layer of types for graphic libraries |
| grilo | A framework for easy media discovery and browsing |
| gsound | Thin GObject wrapper around the libcanberra sound event library |
| gst-plugins-bad | Less plugins for GStreamer |
| gst-plugins-base | Basepack of plugins for gstreamer |
| gst-plugins-good | Basepack of plugins for GStreamer |
| gst-plugins-ugly | Basepack of plugins for gstreamer |
| gst-rtsp-server | A GStreamer based RTSP server |
| gstreamer | Open source multimedia framework |
| gstreamer-editing-services | SDK for making video editors and more |
| guilib | Simple widget set for SDL |
| gupnp-dlna | Library providing DLNA-related functionality for MediaServers |
| hamlib | Ham radio backend rig control libraries |
| harfbuzz | An OpenType text shaping engine |
| icc-profiles-basiccolor-printing2009 | ICC profiles for printing/offset |
| icc-profiles-openicc | ICC color profiles by OpenICC |
| icclib | Library for reading and writing ICC color profile files |
| id3lib | Id3 library for C/C++ |
| ilmbase | OpenEXR ILM Base libraries |
| imlib | Image loading and rendering library |
| imlib2 | Version 2 of an advanced replacement library for libraries like libXpm |
| intel-mediasdk | Intel Media SDK |
| jbig2dec | A decoder implementation of the JBIG2 image compression format |
| jbig2enc | JBIG2 Encoder and libs |
| jbigkit | data compression algorithm for bi-level high-resolution images |
| jpeg | Library to load, handle and manipulate images in the JPEG format |
| kodi-platform | Kodi platform support library |
| kvazaar | Open-source HEVC encoder |
| ladspa-cmt | CMT (computer music toolkit) LADSPA library plugins |
| ladspa-sdk | The Linux Audio Developer's Simple Plugin API |
| lasi | C++ library for postscript stream output |
| lastfmlib | C++ library to scrobble tracks on Last.fm |
| lcms | A lightweight, speed optimized color management engine |
| lensfun | Library for rectifying and simulating photographic lens distortions |
| leptonica | C library for image processing and analysis |
| lib3ds | library for managing 3D-Studio Release 3 and 4 .3DS files |
| libaacplus | HE-AAC+ v2 library, based on the reference implementation |
| libaacs | Open implementation of the Advanced Access Content System (AACS) specification |
| libafterimage | Afterstep's standalone generic image manipulation library |
| libao | The Audio Output library |
| libaom | Alliance for Open Media AV1 Codec SDK |
| libart_lgpl | A LGPL version of libart |
| libass | Library for SSA/ASS subtitles rendering |
| libbdplus | Blu-ray library for BD+ decryption |
| libbluray | Blu-ray playback libraries |
| libbs2b | Bauer stereophonic-to-binaural DSP library |
| libbsb | A portable C library for reading and writing BSB format image files |
| libcaca | A library that creates colored ASCII-art graphics |
| libcanberra | Portable sound event library |
| libcdaudio | Library of cd audio related routines |
| libcddb | A library for accessing a CDDB server |
| libcdr | Library parsing the Corel cdr documents |
| libchamplain | Clutter based world map renderer |
| libclalsadrv | ALSA driver C++ access library |
| libclastfm | C API library to the last.fm web service (unofficial) |
| libclthreads | An audio library by Fons Adriaensen <fons.adriaensen@skynet.be> |
| libclxclient | An audio library by Fons Adriaensen <fons.adriaensen@skynet.be> |
| libcue | CUE Sheet Parser Library |
| libcuefile | Cue File library from Musepack |
| libdc1394 | Library to interface with IEEE 1394 cameras following the IIDC specification |
| libdca | library for decoding DTS Coherent Acoustics streams used in DVD |
| libde265 | Open h.265 video codec implementation |
| libdiscid | Client library to create MusicBrainz enabled tagging applications |
| libdmtx | Barcode data matrix reading and writing library |
| libdv | Software codec for dv-format video (camcorders etc) |
| libdvbcsa | Free implementation of the DVB Common Scrambling Algorithm - DVB/CSA |
| libdvbpsi | library for MPEG TS/DVB PSI tables decoding and generation |
| libdvd-audio | library for extracting audio from DVD-Audio discs |
| libdvdcss | A portable abstraction library for DVD decryption |
| libdvdnav | Library for DVD navigation tools |
| libdvdread | Library for DVD navigation tools |
| libebur128 | A library implementing the EBU R128 loudness standard |
| libemf | Library implementation of ECMA-234 API for the generation of enhanced metafiles |
| libeot | Library for parsing Embedded OpenType files (Microsoft embedded font 'standard') |
| libepoxy | Epoxy is a library for handling OpenGL function pointer management for you |
| libexif | Library for parsing, editing, and saving EXIF data |
| libexif-gtk | GTK+ frontend to the libexif library (parsing, editing, and saving EXIF data) |
| libextractor | Library to extract metadata from files of arbitrary type |
| libfame | MPEG-1 and MPEG-4 video encoding library |
| libffado | Driver for IEEE1394 (Firewire) audio interfaces |
| libfishsound | Simple programming interface to decode and encode audio with vorbis or speex |
| libfpx | A library for manipulating FlashPIX images |
| libfreehand | Library for import of FreeHand drawings |
| libggi | Provides an opaque interface to the display's acceleration function |
| libggigcp | Libggi extension for advanced color and palette handling |
| libggimisc | Adds support for some special graphical target features |
| libggiwmh | Window manager hints extensions for libggi |
| libgig | C++ library for loading Gigasampler and DLS level 1/2 files |
| libgii | Easy to use, but yet powerful, API for all possible input sources |
| libglvnd | The GL Vendor-Neutral Dispatch library |
| libgphoto2 | Library that implements support for numerous digital cameras |
| libgpod | Shared library to access the contents of an iPod |
| libgroove | Streaming audio processing library. |
| libharu | C/C++ library for PDF generation |
| libhdhomerun | SiliconDust HDHomeRun Utilties |
| libheif | ISO/IEC 23008-12:2017 HEIF file format decoder and encoder |
| libicns | A library for manipulating MacOS X .icns icon format |
| libid3tag | The MAD id3tag library |
| libiec61883 | Library for capturing video (dv or mpeg2) over the IEEE 1394 bus |
| libifp | A general-purpose library for iRiver's iFP portable audio players |
| libilbc | Packaged version of iLBC codec from the WebRTC project |
| libinsane | Crossplatform access to image scanners |
| libiptcdata | library for manipulating the International Press Telecommunications Council (IPTC) metadata |
| libirman | library for Irman control of Unix software |
| libjpeg-turbo | MMX, SSE, and SSE2 SIMD accelerated JPEG library |
| libjsw | provide a uniform API and user configuration for joysticks and game controllers |
| libkate | Codec for karaoke and text encapsulation for Ogg |
| liblastfm | Collection of libraries to integrate Last.fm services |
| libldac | LDAC codec library from AOSP |
| liblingoteach | A library to support lingoteach-ui and for generic lesson development |
| liblo | Lightweight OSC (Open Sound Control) implementation |
| liblqr | An easy to use C/C++ seam carving library |
| liblrdf | Library for manipulation of RDF files in LADSPA plugins |
| liblscp | C++ library for the Linux Sampler control protocol |
| libmad | "M"peg "A"udio "D"ecoder library |
| libmatemixer | Mixer library for MATE Desktop |
| libmatroska | Extensible multimedia container format based on EBML |
| libmediaart | Manages, extracts and handles media art caches |
| libmediainfo | MediaInfo libraries |
| libmetalink | Library for handling Metalink files |
| libmikmod | A library to play a wide range of module formats |
| libmms | Common library for accessing Microsoft Media Server (MMS) media streaming protocol |
| libmng | Multiple Image Networkgraphics lib (animated png's) |
| libmodplug | Library for playing MOD-like music files |
| libmp3splt | a library for mp3splt to split mp3 and ogg files without decoding |
| libmp4v2 | Functions for accessing ISO-IEC:14496-1:2001 MPEG-4 standard |
| libmpd | A library handling connections to a MPD server |
| libmpdclient | A library for interfacing Music Player Daemon (media-sound/mpd) |
| libmpeg2 | library for decoding mpeg-2 and mpeg-1 video |
| libmpeg3 | An mpeg library for linux |
| libmpris2client | A library to control MPRIS2 compatible players |
| libmtp | Implementation of Microsoft's Media Transfer Protocol (MTP) |
| libmygpo-qt | Qt/C++ library wrapping the gpodder.net webservice |
| libmypaint | Library for making brushstrokes |
| libnjb | Library for communicating with the Creative Nomad JukeBox digital audio player |
| libnsbmp | decoding library for BMP and ICO image file formats, written in C |
| libnsgif | decoding library for the GIF image file format, written in C |
| libnspsl | decoding library for BMP and ICO image file formats, written in C |
| libofa | Open Fingerprint Architecture |
| libogg | the Ogg media file format library |
| liboggz | Oggz provides a simple programming interface for reading and writing Ogg files and streams |
| libopenglrecorder | Library for asynchronous OpenGL recording with audio |
| libopenraw | A decoding library for RAW image formats |
| libopenshot | Video editing library used by OpenShot |
| libopenshot-audio | Library for audio editing and playback used by OpenShot |
| libopusenc | High-level API for encoding .opus files |
| libpagemaker | C++ Library that parses the file format of Aldus/Adobe PageMaker documents |
| libpano13 | Helmut Dersch's panorama toolbox library |
| libpgf | Library to load, handle and manipulate images in the PGF format |
| libplacebo | Reusable library for GPU-accelerated image processing primitives |
| libpng | Portable Network Graphics library |
| libpng-compat | Portable Network Graphics library |
| libpostproc | Video post processing library |
| libpqstego | Library for Perturbed Quantization Steganography |
| libprojectm | A graphical music visualization plugin similar to milkdrop |
| libqaccessibilityclient | Library for writing accessibility clients such as screen readers |
| libquicktime | An enhanced version of the quicktime4linux library |
| libquvi | Library for parsing video download links |
| libquvi-scripts | Embedded lua scripts for libquvi |
| libraw | LibRaw is a library for reading RAW files obtained from digital photo cameras |
| libreplaygain | Replay Gain library from Musepack |
| librosprite | framebuffer abstraction library, written in C |
| libsamplerate | Secret Rabbit Code (aka libsamplerate) is a Sample Rate Converter for audio |
| libsbsms | A library for high quality time and pitch scale modification |
| libsdl | Simple Direct Media Layer |
| libsdl2 | Simple Direct Media Layer |
| libsfml | Simple and Fast Multimedia Library (SFML) |
| libshout | library for connecting and sending data to icecast servers |
| libsidplay | C64 SID player library |
| libsidplayfp | Library for the sidplay2 fork with resid-fp |
| libsixel | A lightweight, fast implementation of DEC SIXEL graphics codec |
| libsmf | Standard MIDI File format library |
| libsndfile | C library for reading and writing files containing sampled sound |
| libsoundio | C library for cross-platform real-time audio input and output |
| libsoundtouch | Audio processing library for changing tempo, pitch and playback rates |
| libsvgtiny | framebuffer abstraction library, written in C |
| libtaginfo | a library for reading media metadata |
| libtheora | The Theora Video Compression Codec |
| libtiger | A rendering library for Kate streams using Pango and Cairo |
| libtimidity | MIDI to WAVE converter library |
| libuninameslist | Library of unicode annotation data |
| libuvc | A cross-platform library for USB video devices, built atop libusb |
| libv4l | Separate libraries ebuild from upstream v4l-utils package |
| libvisio | Library parsing the file format of MS Visio documents |
| libvisual | Libvisual is an abstraction library that comes between applications and audio visualisation plugins |
| libvorbis | The Ogg Vorbis sound file format library |
| libvpx | WebM VP8 and VP9 Codec SDK |
| libwebp | A lossy image compression format |
| libwmf | A library for reading vector images in Microsoft's Windows Metafile Format (WMF) |
| libXcm | Reference implementation of the X Color Management specification |
| libxmi | C/C++ function library for rasterizing 2-D vector graphics |
| libxmlbird | XML parser written in Vala |
| libxspf | Playlist handling library |
| libxtract | A simple, portable, lightweight library of audio feature extraction functions |
| libyami | Yet Another Media Infrastructure: Media codec with hardware acceleration |
| libzen | Shared library for libmediainfo and mediainfo |
| libzmf | Library for parsing Zoner Callisto/Draw documents |
| lilv | Library to make the use of LV2 plugins as simple as possible for applications |
| lsp-plugins | Linux Studio Plugins |
| lv2 | A simple but extensible successor of LADSPA |
| lvtk | A set of C++ wrappers around the LV2 C API |
| mediastreamer | Mediastreaming library for telephony application |
| memphis | A map-rendering application and a library for OpenStreetMap |
| mesa | OpenGL-like graphic library for Linux |
| mlt | Open source multimedia framework for television broadcasting |
| munt-mt32emu | Library for emulating the Roland MT-32, CM-32L, CM-64 and LAPC-I |
| musicbrainz | Client Library for accessing the latest XML based MusicBrainz web service |
| mutagen | Audio metadata tag reader and writer implemented in pure Python |
| nas | Network Audio System |
| netpbm | A set of utilities for converting to/from the netpbm (and related) formats |
| nv-codec-headers | FFmpeg version of headers required to interface with Nvidias codec APIs |
| openal | A software implementation of the OpenAL 3D audio API |
| opencollada | Stream based read/write library for COLLADA files |
| opencolorio | A color management framework for visual effects and animation |
| opencore-amr | Implementation of Adaptive Multi Rate Narrowband and Wideband speech codec |
| openctm | OpenCTM - the Open Compressed Triangle Mesh. |
| opencv | A collection of algorithms and sample code for various computer vision problems |
| openexr | ILM's OpenEXR high dynamic-range image file format libraries |
| openexr_ctl | OpenEXR CTL libraries |
| openglide | A Glide to OpenGL wrapper |
| openh264 | Cisco OpenH264 library and Gecko Media Plugin for Mozilla packages |
| openicc | Config database to store, share and manipulate colour management informations |
| openimageio | A library for reading and writing images |
| openjpeg | Open-source JPEG 2000 library |
| openmoiv | Object-oriented 3D toolkit for rendering and interaction of chemical systems |
| opensubdiv | An Open-Source subdivision surface library |
| opus | Open codec for interactive speech and music transmission over the Internet |
| opusfile | A high-level decoding and seeking API for .opus files |
| osl | Advanced shading language for production GI renderers |
| oyranos | Colour management system allowing to share settings across apps and services |
| partio | Library for particle IO and manipulation |
| phat | PHAT is a collection of GTK+ widgets geared toward pro-audio apps |
| phonon | KDE multimedia abstraction library |
| phonon-gstreamer | GStreamer backend for the Phonon multimedia library |
| phonon-vlc | VLC backend for the Phonon multimedia library |
| plib | multimedia library used by many games |
| plotutils | Powerful C/C++ function library for exporting 2-D vector graphics |
| pnglite | Small and simple library for loading and writing PNG images |
| portaudio | A free, cross-platform, open-source, audio I/O library |
| portmidi | Library for real time MIDI input and output |
| ptex | Per-Face Texture Mapping for Production Rendering |
| pyliblo | A Python wrapper for the liblo OSC library |
| pymemphis | Python bindings for the libmemphis library |
| qhull | Geometry library |
| qimageblitz | Graphical effect and filter library by KDE |
| qt-gstreamer | C++ bindings for GStreamer with a Qt-style API |
| qtav | Multimedia playback framework based on Qt + FFmpeg |
| quesoglc | A free implementation of the OpenGL Character Renderer (GLC) |
| quvi | A command line tool for parsing video download links |
| raptor | The RDF Parser Toolkit |
| raspberrypi-userland | Raspberry Pi userspace tools and libraries |
| raspberrypi-userland-bin | Raspberry Pi userspace tools and libraries |
| raul | C++ utility library primarily aimed at audio/musical applications |
| resid | C++ library to emulate the C64 SID chip |
| rlottie | A platform independent standalone library that plays Lottie Animations |
| rtaudio | A set of cross-platform C++ classes for realtime audio I/O |
| rubberband | An audio time-stretching and pitch-shifting library and utility program |
| sbc | Audio codec to connect bluetooth HQ audio devices as headphones or loudspeakers |
| sdl-gfx | Graphics drawing primitives library for SDL |
| sdl-image | image file loading library |
| sdl-mixer | Simple Direct Media Layer Mixer Library |
| sdl-net | Simple Direct Media Layer Network Support Library |
| sdl-pango | connect the text rendering engine of GNOME to SDL |
| sdl-sound | A library for handling the decoding of various sound file formats |
| sdl-terminal | library that provides a pseudo-ansi color terminal that can be used with any SDL application |
| sdl-ttf | library that allows you to use TrueType fonts in SDL applications |
| sdl2-gfx | Graphics drawing primitives library for SDL2 |
| sdl2-image | Image file loading library |
| sdl2-mixer | Simple Direct Media Layer Mixer Library |
| sdl2-net | Simple Direct Media Layer Network Support Library |
| sdl2-ttf | library that allows you to use TrueType fonts in SDL applications |
| sg | Socket Graphics tool for displaying polygons |
| sge | Graphics extensions library for SDL |
| shaderc | Collection of tools, libraries and tests for shader compilation |
| simage | Image and video texturing library |
| skstream | FreeSockets - Portable C++ classes for IP (sockets) applications |
| slv2 | A library to make the use of LV2 plugins as simple as possible for applications |
| smpeg | SDL MPEG Player Library |
| smpeg2 | SDL MPEG Player Library |
| soxr | SoX Resampler library |
| SoXt | GUI binding for using Coin/Open Inventor with Xt/Motif |
| spandsp | SpanDSP is a library of DSP functions for telephony |
| speex | Audio compression format designed for speech |
| speexdsp | Audio compression format designed for speech -- DSP |
| sratom | Library for serialising LV2 atoms to/from RDF, particularly the Turtle syntax |
| stimg | Simple and tiny image loading library |
| stk | Synthesis ToolKit in C++ |
| stops | Organ stops for aeolus by Fons Adriaensen <fons.adriaensen@skynet.be> |
| suil | Lightweight C library for loading and wrapping LV2 plugin UIs |
| svgalib | A library for running svga graphics on the console |
| t1lib | A Type 1 Font Rasterizer Library for UNIX/X11 |
| taglib | Library for reading and editing audio meta data |
| taglib-extras | Unofficial taglib plugins maintained by the Amarok team |
| theoraplay | Simple library to make decoding of Ogg Theora videos easier |
| tiff | Tag Image File Format (TIFF) library |
| tremor | A fixed-point version of the Ogg Vorbis decoder (also known as libvorbisidec) |
| tse3 | TSE3 Sequencer library |
| urt | the Utah Raster Toolkit is a library for dealing with raster images |
| vamp-plugin-sdk | Audio processing system for plugins to extract information from audio data |
| vidstab | Video stabilization library |
| vigra | C++ computer vision library emphasizing customizable algorithms and structures |
| virglrenderer | library used implement a virtual 3D GPU used by qemu |
| vitamtp | Library to interact with PS Vita's USB MTP protocol |
| vo-aacenc | VisualOn AAC encoder library |
| vo-amrwbenc | VisualOn AMR-WB encoder library |
| volpack | Volume rendering library |
| vulkan-layers | Vulkan Validation Layers |
| vulkan-loader | Vulkan Installable Client Driver (ICD) Loader |
| waffle | Library that allows selection of GL API and of window system at runtime |
| webrtc-audio-processing | AudioProcessing library from the webrtc.org code base |
| woff2 | Encode/decode WOFF2 font format |
| wxsvg | C++ library to create, manipulate and render SVG files |
| x264 | A free library for encoding X264/AVC streams |
| x265 | Library for encoding video streams into the H.265/HEVC format |
| xine-lib | Core libraries for Xine movie player |
| xvid | High performance/quality MPEG-4 video de-/encoding solution |
| zimg | Scaling, colorspace conversion, and dithering library |
| zita-alsa-pcmi | Provides easy access to ALSA PCM devices |
| zita-convolver | C++ library implementing a real-time convolution matrix |
| zita-resampler | C++ library for real-time resampling of audio signals |
| zvbi | VBI Decoding Library for Zapping |
| zxing-cpp | C++ Multi-format 1D/2D barcode image processing library |