Gmerlin is a set of multimedia libraries which comes with several applications. Applications include a full featured media player with Gtk-2 GUI, an audio/video transcoder, a webcam application, and an ALSA mixer. The libraries provide many low-level functions like handling of uncompressed A/V streams or decoding a wide range of multimedia formats. All libraries were written with good reusability in mind, so you can easily write your own applications based on gmerlin libraries.
Libquicktime is based on the quicktime4linux library with several enhancements. All 3rd-party libraries were removed from the sourcetree. Instead, the systemwide installed libraries are detected by the configure script. All original codecs were moved into dynamically loadable modules, and new codecs are in development. Special API extensions allow access to the codec registry and more convenient processing of audio and video data. Libquicktime comes with original utility programs and additional tools, like a command line player and a GTK configuration utility that can configure the parameters of all installed codecs. The configuration is stored in the home directory, and can be used by all libquicktime applications.
Gavl is a library for handling uncompressed audio and video data. It provides commonly used conversions like video scaling, colorspace conversion, audio resampling, and more. Many routines are available in multiple versions optimized for either high speed or better accuracy. Gavl is compatible with all major multimedia and codec APIs. The supported audio and video formats include low-end legacy formats as well as high definition formats for professional editing.
Gmerlin-avdecoder is a multimedia decoding library that supports audio, video, and subtitles. It handles most commonly used media formats and codecs. The streams can come from many sources including regular files, DVDs, VCDs, and network connections using different protocols. For editing applications, many formats can be decoded in a sample accurate mode, which provides fast random access.