[vlc-devel] [PATCH] Phosphor deinterlacer, reworked += 3

[Juha Jeronen]

Hi all,

Patch split into two as suggested. Aside from that, I updated some of
the new comments and removed an unused parameter that was accidentally
left in in the previous version.

Please review the attached version. If needed, I can make one more round
of changes for this set. After that, I think it's time to declare this
set complete :)


Changelog (on top of "reworked += 2"):

- minor comment fixes for the new stuff in vlc_picture.h
- added back inadvertently deleted blank line after set_subcategory(
SUBCAT_VIDEO_VFILTER ) (no cosmetics!)
- minor update to PHOSPHOR_CHROMA_LONGTEXT: mention that Upconvert
produces the most accurate simulation
- minor update to the heading comment of the Phosphor section: light
decay, not just luma decay
- minor function comment update to ComposeFrame(): mention the specific
chroma conversions that are done
- DarkenField(): removed the parameter p_filter (not needed)
- function comment update to RenderPhosphor():
  - explain the different 4:2:0 chroma modes better
  - fixed incorrect comment about Bob (obviously, it doesn't render the
old field!)
  - added note on main differences to an actual CRT TV
  - updated explanation for i_order/i_field (still not good but will do
for now)


 -J

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