About WMV Format
Windows Media Video (WMV) er en video kompression format for flere proprietære codecs er udviklet af Microsoft.Den oprindelige video-format, kendt som WMV, blev oprindeligt udviklet til Internet streaming applikationer, som en konkurrent til RealVideo.De andre formater, såsom WMV Screen og WMV Billed, tage højde for specialiseret indhold.Gennem standardisering fra Society of Motion Picture and Television Engineers (SMPTE), har WMV 9 vundet vedtagelse for fysisk-levering formater som HD DVD ogBlu-ray Disc.
The video stream is often combined with an audio stream of Windows Media Audio. WMV deals with all types of video content. The advantage of the format it that it allows to compress large video files yet retaining considerably high quality. On-line radio stationss use this format to deliver continuous flow of data. WMV is similiar to ASF(Advanced Systems Format).Faktisk er WMV ofte pakket ind ASF og den resulterende fil kan navngives wmv eller. Asf..WMV kan også sættes iAVI beholder.
Programmer baseret på forskellige OS platforme giver mulighed for afspilning af WMV-filer (Windows Media Player, ALLPlayer, The KMPlayer, PowerDVD, RealPlayer, MPlayerVLC Media Player, Zoom Player og Media Player Classic). WMV er en obligatorisk codec for PlaysForSure-certificeret online butikker og enheder som bærbare Media Center enheder. Enheder med Windows Media Player som Microsoft Zune, Xbox 360, mobiltelefoner med Windows Mobile understøtter denne codec. WMV 9 er vedtaget for fysisk levering formater såsom HD DVD og Blu-ray Disc.
DRM WMV:
It’s a Digital Rights Management service for the Windows Media platform. It is designed to provide delivery of audio and/or video content over an IP network to a PC or other playback device in such a way that the distributor can control how that content is used.While none of the WMV codecs themselves contain any digital rights management facilities, the ASF container format, in which a WMV stream may be encapsulated.
Windows Media DRM, which can be used in conjunction with WMV, supports time-limited subscription video services such as those offered by some video/audio company. Windows Media DRM, a component of Windows Media Connect, is supported on many modern portable video devices and streaming media clients such as the Xbox 360.
WMV features & advantages
● kombination af elliptisk kurve kryptografi nøgle udveksling, DES blok cipher, en brugerdefineret blok cipher, RC4 cipher og SHA-1 hashing funktion tillader administration af digitale rettigheder
● supports interlaced video, non-square pixels, and frame interpolation
● supports variable bit rate, average bit rate, and constant bit rate
● allows compression of large files without quality losses
● offers digital rights management facilities
● WMV 9 codec an open but proprietary standard
● støttede på mange moderne bærbare video enheder og streaming media-klienter
● kan spilles med mange tredjeparts-afspillere, der bruger FFmpeg
Relateret software
Leawo Video Converter (WMV Converter): an easy video and audio solution for any format conversions, with fast speed and excellent output guaranteed. Equipped with 3D conversion function, you can get 3D WMV video as output. This WMV Video Converter not only converts common videos to WMV video, but also converts WMV video to other video formats. In addition, it allows you to remove DRM protection from WMV so that you can make the best of WMV video.
Leawo DVD Ripper (DVD to WMV Ripper): a useful DVD ripping program for users to rip DVD to video in various formats. So with it you can enjoy great convenience to convert DVD to WMV for appreciation. This DVD to WMV Ripper enables you to convert DVD to WMV with fast speed and excellent video quality. 3D WMV video as output is also supportable. Furthermore, with DRM removal ability, you are enabled to obtain WMV file without DRM protection.
Relateret Source
AVI, MP4, RMVB, FLV, 3GP, MOV, MKV, Windows Media Player, MPlayer, Kmplayer, iMovie, Sony Vegas, Adobe Premiere
Referencer
Sådan Konverter WMV til MP4
How to convert WMV to AVI
Convert WMV to MPEG
Eksterne links
https://en.wikipedia.org/wiki/WMV
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