Typo in Documentation

[conivayt]

Example for "39.224 selectivecolor" filter in documentation is wrong (possible typo). This might be confusing for new users.

https://ffmpeg.org/ffmpeg-all.html#Examples-156

Which is:

---

• Increase cyan by 50% and reduce yellow by 33% in every green areas, and increase magenta by 27% in blue areas:

  selectivecolor=greens=.5 0 -.33 0:blues=0 .27
  

---

Correct parameter example should be:

---

• Increase cyan by 50% and reduce yellow by 33% in every green areas, and increase magenta by 27% in blue areas:

  selectivecolor=greens=0.5:yellows=0.33=blues=0.27
  

---

[Michael Koch]

I think the example is correct as written in the documentation:
selectivecolor=greens=.5 0 -.33 0:blues=0 .27

Arguments which contain spaces are always problematic. It should be added that (at least for Windows batch files) the arguments must be encapsulated in quotes:
selectivecolor=greens=".5 0 -.33 0":blues="0 .27"

[Michael Koch]

I don't understand the difference between "absolute" and "relative" in this filter. Please add a better explanation and an example to the documentation.