Support of encoding/Decoding video files in Android

Question

I want to know the list of supported audio/video formats by Android 2.2, 2.3 and 3,4. I also want to know which Android versions support video encoding and decoding. I went through this link, but I am not getting clear idea about encoding and decoding.

Answer from anyone is highly appreciable.

Answer 1

empty means 'not supported'
dot means 'supported'
in parenthesis: (supported starting from 'android version')

where an ancoder/decor is supported without specifying a 'starting version' , simply means: supported from the first released version of Android