(question) about GIF 89a spec, (Application Extenstion)

(question) about GIF 89a spec, (Application Extenstion)

Post by Maro » Thu, 11 Nov 1999 04:00:00



Application Extension spec of GIF 89a is composed of
  - Extension Introducer - 1byte
  - Extension Label        - 1byte
  - Block Size                 - 1byte
  - Application Identifier  - 8 bytes
  - Authentication  Code - 3byte
  - Application Data
 - Block terminator
...

How to generate Application Identifier, Authentication Code and Application
Data ??

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1. question about GIF 89a spec (Application Extension)

I have a question about GIF 89a spec (Application Extension)
..

Application Extension spec of GIF 89a is composed of
  - Extension Introducer    - 1byte
  - Extension Label         - 1byte
  - Block Size              - 1byte
  - Application Identifier  - 8 bytes
  - Authentication  Code    - 3byte
  - Application Data
  - Block terminator
...
How to generate Application Identifier, Authentication Code and Application
Data ??

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