[MPlayer-dev-eng] [PATCH] vop eq2 with gamma correction

[Hampa Hug]

Hello

This patch adds a new software equalizer to mplayer. It can adjust
brightness/contrast as well as gamma. Some notes:

- All operations are done on the Y channel only. This is not
  technically correct, but it produces decent results.

- Gamma can not yet be changed interactively. I have a patch
  here that fixes that but it's not yet good to go.

- This patch adds a new file to the source tree. I didn't want
  to change the old eq because I would have had to remove some
  code.

- The vop takes 3 floating point arguments. The syntax is
  -vop eq2[=gamma[:contrast[:brightness]]]
  e.g.
  -vop eq2=2.2:1.0:-0.01

regards
Hampa
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