Digital Video Media By: David Owens. Introduction to Video Streams: Audio and Video Video Frames Compression Scale Time-code.

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Presentation transcript:

Digital Video Media By: David Owens

Introduction to Video Streams: Audio and Video Video Frames Compression Scale Time-code

Video Encoding Codec: Encode/Decode Lossless – No data lost or changed Lossey – Data lost during compression

Divx Readily available Proprietary Keyframing Lossey

Xvid MPEG-4 ISO compliant Open Source Keyframing Lossey

HuffYUV Lossless Encoding speed Size

Video Editing Timeline(s) Audio/Video interaction Codec Support Ease of use (UI)

Windows Movie Maker Movie files are added to collections and divided into clips Lacks multi-timelines Limited ability to change clips Simple audio adjusting Limited exporting choices Relatively simple for beginners

VirtualDub Single Timeline Large support for codecs Fairly easy to use, simple design More editing choices More choices of audio Many exporting options

Adobe Premiere Multiple Timelines Multiple Audio Sources Many editing choices Large support for codecs Easy to use Expensive

Jahshaka Open Source No comment…

Video Media Ethics Companies protecting their copyrighted works Individual violating copyrights

Sony CD DRM Uses Autorun feature of windows to install anti-music copying software without user’s consent. Easily countered Compromises to system security MediaMax, XCP systems

Samsung DRM Glitch US Film Makers Sue Samsung Over Glitches on DVD Players Glitch allows players to bypass DRM mechanisms “Sophisticated users”

Fair Use Section 107 of copyright law Reproduction of work considered “fair” for criticism, comment, news reporting, teaching, scholarship, and research. Factors considered: character of use, nature of copyrighted work, amount of the portion used, effect of the use upon the potential market Protects the way the original author expressed the information, not the information itself

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Sources Used: g/huffyuv.htmlhttp://neuron2.net/ g/huffyuv.html Center for Information Technology Policy Department of Computer Science Princeton University

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