MediaCoder is a free universal batch media transcoder, which nicely integrates most popular audio/video codecs and tools into an all-in-one solution. With a flexible and extendable architecture, new codecs and tools are added in constantly as well as supports for new devices. MediaCoder intends to be the swiss army knife for media transcoding in all time and at this moment, it already has millions of users from 170+ countries all over the planet. MediaCoder is a front-end/GUI for a collection of audio/video command line utilities and dynamic libraries (including audio/video codecs and multiplexers). MediaCoder maintains a unified parameter tree whose leaves (parameter values) can be altered through the application GUI, a web-based tree view, user interfaces for specific devices (e.g. PSP, iPhone) and conforming HTTP requests. It maps the parameter tree into command line options or calling parameters for various codecs and tools.

MediaCoder pipes the decoder’s output into the encoder’s input, rather than using temporary files. This allows it to convert large amounts of data without using excessive disk space.Some of the included utilities are also patched to add extra interfaces.
MediaCoder has a built-in media streaming server which can be used to stream out audio and video files through HTTP protocol. It is able to apply on-the-fly transcoding for both audio and video streaming with some of its supported audio and video codecs.

Features In Brief:
* Convert to and from many audio and video compression formats and re-multiplex into various container formats in batches
* Full control over transcoding parameters, you can learn about audio/video encoding and play with various codecs
* Strong decoding capability for partial or corrupted contents
* Simplified UI for popular mobile devices (e.g. PSP, iPhone/iPod)
* Fully standalone, no dependance on system codecs/splitters
* Extension (scripting language) infrastructure to expand user interfaces and improve user experience

Typical Applications:
* Improving compression / reducing size for audio/video files
* Converting for audio/video playback devices (digital audio player, MP4 player, mobile phone, PDA, PSP, VCD/DVD player etc.)
* Extracting audio tracks from video files
* Ripping audio/video discs
* Reparing corrupted or partial downloaded video files

Supported Fomats:
* MP3, Vorbis, AAC, AAC+, AAC+v2, MusePack, Speex, AMR, WMA, RealAudio, mp3PRO*
* FLAC, WavPack, Monkey’s Audio, OptimFrog, AAC Lossless, TTA, WAV/PCM, Waveform
* H.264, XviD, DivX, MPEG 1/2/4, Theora, Flash Video, Dirac, 3ivx*, RealVideo*, Windows Media Video
* AVI, MPEG/VOB, Matroska, MP4, PMP, RealMedia*, ASF, Quicktime*, OGM*
* CD, DVD, VCD, SVCD, CUESheet*, HTTP*, FTP*, RTSP*, UDP*
*supported as input only

Changes in 2011-R10 (build 5215):
* Fixed subtitle file selection bug
* Changed layout of preview tab
* Improved audio/video capture device input
* Added local IP display in MediaCoder Agent
* Updated x264 r2120
* Updated MPlayer/MEncoder r34401 (built with blu-ray support)
* Updated FFmpeg (Zeranoe build 20111212)