linux-kernel - Re: [PATCH 0/9] media: hantro: Add support for H264 decoding

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Date:   Wed, 19 Jun 2019 14:23:53 +0200
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@....fi>, linux-media@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Tomasz Figa <tfiga@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>, kernel@...labora.com,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Jonas Karlman <jonas@...boo.se>,
        linux-rockchip@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Philipp Zabel <p.zabel@...gutronix.de>
Subject: Re: [PATCH 0/9] media: hantro: Add support for H264 decoding

On Wed, 19 Jun 2019 14:15:31 +0200
Boris Brezillon <boris.brezillon@...labora.com> wrote:

> Hello,
> 
> This patch series adds support H264 decoding support to the hantro
> driver and doing some consilidation cleanup in the driver along the
> way.
> 
> Some details about the patches forming this patchset:
> 
> * The first patch is adding support for the sort_r() variant and has
>   been posted separately by Rasmus. I put it back there because Andrew
>   told me to repost it with the patch series using this new variant.
>   As mentioned in the patch itself, I'd like this patch to be merged
>   as soon as possible to avoid the synchronisation burden that might
>   appear if we decide to delay it.
> 
> * Patch 2 is needed to properly propagate the output buf timestamp to
>   the capture buf one, which is required for intra-frame references.
> 
> * Patches 3 to 6 are consolidating the code by providing helpers that
>   can be used by all hantro backend and simplifying the ctrl
>   initialization logic. We also constify the controls array.
> 
> * Patches 7 to 8 are adding common H264 decoding bits and patch 9 is
>   enabling H264 decoding on rk3288
> 
> Now, a few words about the dependencies. Unfortunately there are a lot,
> and that'd be great to have some of them merged.
> 
> * This series is based on top of Ezequiel's VP8 work [1].
> * It depends on [2] which defines/described the H264 decoding mode
>   control.
> * Depends on [3] since I'm using vb2_get_buffer() to retrieve a
>   reference buffer
> * The final dep is a fix I sent this morning allowing me to simplify the
>   ctrl initialization logic [4]

And now the links :-).

[1]https://patchwork.kernel.org/project/linux-media/list/?series=131677
[2]https://patchwork.kernel.org/project/linux-media/list/?series=129567
[3]https://patchwork.kernel.org/project/linux-media/list/?series=129895
[4]https://patchwork.kernel.org/patch/11003737/

> 
> Regards,
> 
> Boris
> 
> Boris Brezillon (5):
>   media: hantro: Move copy_metadata() before doing a decode operation
>   media: hantro: Constify the control array
>   media: hantro: Simplify the controls creation logic
>   media: hantro: Add hantro_get_{src,dst}_buf() helpers
>   media: hantro: Add helpers to prepare/finish a run
> 
> Hertz Wong (3):
>   media: hantro: Add core bits to support H264 decoding
>   media: hantro: Add support for H264 decoding on G1
>   media: hantro: Enable H264 decoding on rk3288
> 
> Rasmus Villemoes (1):
>   lib/sort.c: implement sort() variant taking context argument
> 
>  drivers/staging/media/hantro/Makefile         |   2 +
>  drivers/staging/media/hantro/hantro.h         |  24 +-
>  drivers/staging/media/hantro/hantro_drv.c     |  95 ++-
>  .../staging/media/hantro/hantro_g1_h264_dec.c | 295 ++++++++
>  .../media/hantro/hantro_g1_mpeg2_dec.c        |  14 +-
>  .../staging/media/hantro/hantro_g1_vp8_dec.c  |  17 +-
>  .../staging/media/hantro/hantro_h1_jpeg_enc.c |  11 +-
>  drivers/staging/media/hantro/hantro_h264.c    | 638 ++++++++++++++++++
>  drivers/staging/media/hantro/hantro_hw.h      |  55 ++
>  drivers/staging/media/hantro/hantro_v4l2.c    |  15 +-
>  drivers/staging/media/hantro/rk3288_vpu_hw.c  |  21 +-
>  .../media/hantro/rk3399_vpu_hw_jpeg_enc.c     |  12 +-
>  .../media/hantro/rk3399_vpu_hw_mpeg2_dec.c    |  14 +-
>  include/linux/sort.h                          |   5 +
>  lib/sort.c                                    |  34 +-
>  15 files changed, 1175 insertions(+), 77 deletions(-)
>  create mode 100644 drivers/staging/media/hantro/hantro_g1_h264_dec.c
>  create mode 100644 drivers/staging/media/hantro/hantro_h264.c
>