Subproject for MediaArea_net snapshots

MediaInfo supplies technical and tag information about a video or
audio file.

It reads the following information:
* General: title, author, director, album, track number, date, duration...
* Video: codec, aspect, fps, bitrate...
* Audio: codec, sample rate, channels, language, bitrate...
* Text: language of subtitle
* Chapters: number of chapters, list of chapters

It supports the following containers/codecs:
* Video: MKV, OGM, AVI, DivX, WMV, QuickTime, Real, MPEG-1,
MPEG-2, MPEG-4, DVD (VOB) (Codecs: DivX, XviD, MSMPEG4, ASP,
H.264, AVC...)
* Audio: OGG, MP3, WAV, RA, AC3, DTS, AAC, M4A, AU, AIFF
* Subtitles: SRT, SSA, ASS, SAMI

MediaInfo supplies technical and tag information about a video or
audio file.