media: vicodec: add the virtual codec driver
Add the virtual codec driver that uses the Fast Walsh Hadamard Transform. Keiichi Watanabe contributed the multiplanar support. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Co-Developed-by: NKeiichi Watanabe <keiichiw@chromium.org> Signed-off-by: NKeiichi Watanabe <keiichiw@chromium.org> Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
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