linux-kernel - Re: [PATCH v1 0/9] AV1 stateless decoder for RK3588

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Date:   Mon, 19 Dec 2022 18:07:38 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>
Cc:     p.zabel@...gutronix.de, mchehab@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, heiko@...ech.de,
        daniel.almeida@...labora.com, nicolas.dufresne@...labora.co.uk,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCH v1 0/9] AV1 stateless decoder for RK3588

Hi Benjamin,

On Mon, Dec 19, 2022 at 12:56 PM Benjamin Gaignard
<benjamin.gaignard@...labora.com> wrote:
>
> This series implement AV1 stateless decoder for RK3588 SoC.
> The harware support 8 and 10 bits bitstreams up to 7680x4320.
> AV1 feature like film grain or scaling are done by the postprocessor.
> The driver can produce NV12_4L4 and NV12 pixel formats.
> A native 10bits NV12_4L4 format is possible but need more investigation
> to be completly documented and enabled.
>
> It is based on Daniel's "[RFC,v3] media: Add AV1 uAPI" [1] patches and
> Sebastian's device-tree patches for RK3588.
>

I thought the AV1 decoder in RK3588 was really a separate hardware
from the Hantro G1/G2.

Shouldn't this need a new driver for this new hardware?

Thanks!
Ezequiel

> The full branch can be found here:
> https://gitlab.collabora.com/linux/for-upstream/-/commits/rk3588_av1_decoder_v1
>
> Fluster score is: 151/239 while testing AV1-TEST-VECTORS with GStreamer-AV1-V4L2SL-Gst1.0.
> The failing tests are:
> - 10bits bitstream because 10bits output formats aren't yet implemented.
> - the 2 tests with 2 spatial layers: few errors in luma/chroma values
> - tests with resolution < hardware limit (64x64)
>
> Benjamin
>
> Benjamin Gaignard (9):
>   dt-bindings: media: rockchip-vpu: Add rk3588 vpu compatible
>   media: verisilicon: Add AV1 decoder mode and controls
>   media: verisilicon: Save bit depth for AV1 decoder
>   media: verisilicon: Check AV1 bitstreams bit depth
>   media: verisilicon: Compute motion vectors size for AV1 frames
>   media: verisilicon: Add AV1 entropy helpers
>   media: verisilicon: Add Rockchip AV1 decoder
>   media: verisilicon: Add film grain feature to AV1 driver
>   media: verisilicon: Enable AV1 decoder on rk3588
>
>  .../bindings/media/rockchip-vpu.yaml          |    1 +
>  drivers/media/platform/verisilicon/Makefile   |    3 +
>  drivers/media/platform/verisilicon/hantro.h   |    5 +
>  .../media/platform/verisilicon/hantro_drv.c   |   54 +
>  .../media/platform/verisilicon/hantro_hw.h    |  102 +
>  .../platform/verisilicon/hantro_postproc.c    |    3 +
>  .../media/platform/verisilicon/hantro_v4l2.c  |    5 +
>  .../verisilicon/rockchip_av1_entropymode.c    | 4536 +++++++++++++++++
>  .../verisilicon/rockchip_av1_entropymode.h    |  272 +
>  .../verisilicon/rockchip_av1_filmgrain.c      |  401 ++
>  .../verisilicon/rockchip_av1_filmgrain.h      |   36 +
>  .../verisilicon/rockchip_vpu981_hw_av1_dec.c  | 2280 +++++++++
>  .../verisilicon/rockchip_vpu981_regs.h        |  477 ++
>  .../platform/verisilicon/rockchip_vpu_hw.c    |  116 +
>  14 files changed, 8291 insertions(+)
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_av1_entropymode.c
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_av1_entropymode.h
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_av1_filmgrain.c
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_av1_filmgrain.h
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_vpu981_regs.h
>
> --
> 2.34.1
>