media: verisilicon: Add film grain feature to AV1 driver

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Film grain feature add "old style" grain noise on decoded streams.
Grain noise is applied after decoding by the postprocessor.
The level of grain is based on gaussian sequence.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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Benjamin Gaignard 2023-05-03 09:34:36 +01:00 • committed by Mauro Carvalho Chehab

parent 727a400686

commit d8ebe59e7b

5 changed files with 651 additions and 0 deletions

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1

drivers/media/platform/verisilicon/Makefile

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3

drivers/media/platform/verisilicon/hantro_hw.h

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401

drivers/media/platform/verisilicon/rockchip_av1_filmgrain.c

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36

drivers/media/platform/verisilicon/rockchip_av1_filmgrain.h

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210

drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c

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