linux-kernel - Re: [RFC 0/6] VP8 H1 stateless encoding

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Message-ID: <20231005-bleach-unknotted-9b11443959b1@spud>
Date:   Thu, 5 Oct 2023 11:59:42 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Hugues Fruchet <hugues.fruchet@...s.st.com>
Cc:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Daniel Almeida <daniel.almeida@...labora.com>,
        Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>, linux-media@...r.kernel.org,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        linux-stm32@...md-mailman.stormreply.com,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Marco Felsch <m.felsch@...gutronix.de>,
        Adam Ford <aford173@...il.com>
Subject: Re: [RFC 0/6] VP8 H1 stateless encoding

On Wed, Oct 04, 2023 at 12:37:14PM +0200, Hugues Fruchet wrote:
> Hi all,
> 
> Here is an RFC to support VP8 encoding using Hantro H1 hardware
> of STM32MP25 SoCs (Verisilicon VC8000NanoE IP).
> This work is derived from work done to support Rockchip RK3399
> VPU2 in RFC [1] with a reshuffling of registers to match H1
> register set.
> 
> This has been tested on STM32MP257F-EV1 evaluation board using
> GStreamer userspace [2]:
> gst-launch-1.0 videotestsrc num-buffers=500 ! video/x-raw,width=640,height=480 \
> ! v4l2slvp8enc ! queue ! matroskamux ! filesink location=test_vp8.mkv
> 
> For the sake of simplicity I have embedded here the RFC [1] before the
> changes related to this exact RFC, all rebased on v6.6 + STM32MP25
> hardware codecs support [3].

I don't see any bindings etc here, what is it that you think I would
care about looking at in this RFC series?

Thanks,
Conor.

> 
> [1] https://lwn.net/ml/linux-media/20230309125651.23911-1-andrzej.p@collabora.com/
> [2] https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3736
> [3] https://patchwork.kernel.org/project/linux-media/list/?series=789861
> 
> Best regards,
> Hugues.
> 
> 
> Andrzej Pietrasiewicz (2):
>   media: uapi: Add VP8 stateless encoder controls
>   media: hantro: add VP8 encode support for Rockchip RK3399 VPU2
> 
> Hugues Fruchet (4):
>   media: hantro: add h1 vp8 encode support
>   media: hantro: add VP8 encode support for STM32MP25 VENC
>   media: hantro: h1: NV12 single-plane support
>   media: hantro: add NV12 single-plane support for STM32MP25 VENC
> 
>  drivers/media/platform/verisilicon/Makefile   |    3 +
>  drivers/media/platform/verisilicon/hantro.h   |   10 +
>  .../platform/verisilicon/hantro_boolenc.c     |   69 +
>  .../platform/verisilicon/hantro_boolenc.h     |   21 +
>  .../media/platform/verisilicon/hantro_drv.c   |   15 +-
>  .../platform/verisilicon/hantro_h1_jpeg_enc.c |   42 +-
>  .../platform/verisilicon/hantro_h1_regs.h     |   71 +-
>  .../platform/verisilicon/hantro_h1_vp8_enc.c  | 1589 +++++++++++++++++
>  .../media/platform/verisilicon/hantro_hw.h    |   93 +
>  .../media/platform/verisilicon/hantro_v4l2.c  |    5 +-
>  .../media/platform/verisilicon/hantro_vp8.c   |  118 ++
>  .../verisilicon/rockchip_vpu2_hw_vp8_enc.c    | 1574 ++++++++++++++++
>  .../platform/verisilicon/rockchip_vpu2_regs.h |    1 +
>  .../platform/verisilicon/rockchip_vpu_hw.c    |   23 +-
>  .../platform/verisilicon/stm32mp25_venc_hw.c  |   35 +-
>  drivers/media/v4l2-core/v4l2-ctrls-core.c     |   13 +
>  drivers/media/v4l2-core/v4l2-ctrls-defs.c     |    5 +
>  include/media/v4l2-ctrls.h                    |    2 +
>  include/uapi/linux/v4l2-controls.h            |   91 +
>  include/uapi/linux/videodev2.h                |    3 +
>  20 files changed, 3755 insertions(+), 28 deletions(-)
>  create mode 100644 drivers/media/platform/verisilicon/hantro_boolenc.c
>  create mode 100644 drivers/media/platform/verisilicon/hantro_boolenc.h
>  create mode 100644 drivers/media/platform/verisilicon/hantro_h1_vp8_enc.c
>  create mode 100644 drivers/media/platform/verisilicon/rockchip_vpu2_hw_vp8_enc.c
> 
> -- 
> 2.25.1
> 

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