media: hantro: Use post processor scaling capacities

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Hantro G2 post processor is able to down scale decoded frames
by a factor of 2, 4 or 8.
Add enum_framesizes() ops to postproc_ops structure to enumerate the
possible output sizes for a given input resolution.
For G2 post-processor use fsize->index (from 0 to 3) as power of 2
divisor. As described in v4l2 documentation return -EINVAL when scaling
down isn't possible.

fluster scores:
77/147 for HEVC
143/303 for VP9

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

...

This commit is contained in:

Benjamin Gaignard 2022-04-04 18:06:40 +02:00 • committed by Mauro Carvalho Chehab

parent d67005b7dc

commit 79c987de8b

5 changed files with 72 additions and 12 deletions

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2

drivers/staging/media/hantro/hantro.h

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6

drivers/staging/media/hantro/hantro_g2_regs.h

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8

drivers/staging/media/hantro/hantro_hw.h

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53

drivers/staging/media/hantro/hantro_postproc.c

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15

drivers/staging/media/hantro/hantro_v4l2.c

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