Whats the difference between "Encoding" & "Decoding"?

Discussion in 'Windows Multimedia' started by raya2, Sep 14, 2015.

  1. raya2

    raya2 Senior Member

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    In terms of digital video converting,
    Whats the difference between "Encoding" & "Decoding"?
    (With example)
     
  2. kemical

    kemical Windows Forum Admin
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  3. raya2

    raya2 Senior Member

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  4. WillyBo

    WillyBo Member

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    Encoding and decoding are two opposite processes. Encoding is done with the intension of increasing the usability of data in different systems and to reduce the space required for storage, while decoding converts encoded information back in to its original format. Encoding is done using publicly available methods and it can be easily reversed (decoded). For example, ASCII encoding is just a mapping between characters and numbers. So decoding it is straight forward. But decoding messages sent via a noisy channels will not be straight forward, because the message could be tampered with noise. In such instances decoding involves complex methods that are used to filter out the effect of noise in the message.
     
  5. Neemobeer

    Neemobeer Windows Forum Team
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    The most basic definition is

    Encoding: Transforming something into something else
    Decoding: Transforming the encoded something back to it's original form

    Base64 is a common encoding scheme used in computers
    Base64 - Wikipedia, the free encyclopedia
     

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