Frank Barchard 94af5319f4 Remove M420 and refactor NV12ToI420
M420 is a row biplanar variation of NV12 supported on Microsoft webcams.
The code was hardcoded to bt.601 and should be jpeg, but the format is
very old and rare.  Is a variation on NV12, so if someone needs it, it
can be re-implemented easily.

Bug: libyuv:858
Change-Id: I246167dba3c190cc76af741b8e91e58e68fde28f
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2212608
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
2020-05-26 18:48:00 +00:00
..
deprecated_builds.md [ndk] Add android ndk deps in libyuv DEPS 2018-01-10 19:25:11 +00:00
environment_variables.md Documentation update for GYP and envionment variables 2018-09-04 19:45:41 +00:00
filtering.md Add all wiki pages as MarkDown documents + README.md 2016-02-17 07:50:19 +01:00
formats.md Remove M420 and refactor NV12ToI420 2020-05-26 18:48:00 +00:00
getting_started.md NV12Mirror and MirrorUVPlane functions added 2020-05-04 22:32:14 +00:00
rotation.md NV21 unittest and benchmark 2019-07-18 02:13:02 +00:00