Saturday 17 September 2016

Codecs for Videos

  • The Video Codecs is a method of compression or decompression of video files, video data or streaming video format.
  •  A Video Codec is a computer program that both shrinks large movie files, and makes them playable on our computer.
Difference between Video Codecs and file formats:
  • A file format is like a type of container. Inside the container is data that has been compressed by using a particular codec. 
  • And for a container that can obtain a different encoding format video and audio. And sometimes they have the same name.
  • For example, a file format such as Windows Media Audio(WMA) contains data that is compressed by using the Windows Media Audio(WMA) Codec.

Some Video Codecs software's are:
  • Microsoft Codecs
    • WMV(Widows Media Video)
    • MS MPEG-4v3
  • Google Codecs
    • VP6
    • VP6-E
  • DivX
  • MPEG(Motion Picture Experts Group)
Codecs Packs:
  • Codec Packs are collection of codecs gathered in single large file.
  • Online video material is encoded by a variety of Codec Packs.  Some Codec Packs come along with installer for PC's.
  • Some Codecs Packs are:
    • CCCP(Combined Community Codec Pack)
    • XP Codec Pack
    • K-Lite Codec Pack
How to know installed Codecs in windows:
Through MSINFO Utility (for all Windows):
  • Go to Run and type “MSINFO32”.
  • Expand the Components  Link and below it, Expand Multimedia and there it is…the list of all codecs under audio and video. As shown below:

Through Media Player:
  •  Open Windows Media Player
  •  Press the ALT key to access the menus drop-down.
  •  Follow “Help” then “About Windows Media Player”
  •  Click on the “Technical Support Information” link in the About Window
  •  It will generate a browser window showing the list of codecs on your PC.It looks as shown below:

Applications of Video Codecs:
  • In DVD and Video CD players
  • Personal Computers
  • Video Broadcast Systems
  • Streaming purpose and in other applications.
Examples for Video Codecs: