linux-kernel - Re: [PATCH v10 0/5] Enable support for AV1 stateful decoder

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Message-ID: <a8af1513-fda6-4809-80ae-bb07d2ed0db3@oss.qualcomm.com>
Date: Fri, 2 Jan 2026 10:59:08 -0800
From: Deepa Guthyappa Madivalara <deepa.madivalara@....qualcomm.com>
To: Val Packett <val@...kett.cool>, Bryan O'Donoghue <bod@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Hans Verkuil <hverkuil+cisco@...nel.org>
Subject: Re: [PATCH v10 0/5] Enable support for AV1 stateful decoder


On 1/2/2026 3:01 AM, Val Packett wrote:
>
> On 1/2/26 7:44 AM, Bryan O'Donoghue wrote:
>> On 02/01/2026 10:43, Val Packett wrote:
>>>
>>> On 12/10/25 3:59 PM, Deepa Guthyappa Madivalara wrote:
>>>> Hi all,
>>>>
>>>> This patch series adds initial support for the AV1 stateful decoder
>>>> codecs in iris decoder. Also it adds support for AV1 stateful decoder
>>>> in V4l2. The objective of this work is to extend the Iris decoder's
>>>> capabilities to handle AV1 format codec streams, including necessary
>>>> format handling and buffer management.
>>>
>>> This is awesome, thanks!
>>>
>>> I've tested it with rpi-ffmpeg as well, and it works great (only
>>> required one interesting logic change..
>>> https://github.com/jc-kynesim/rpi-ffmpeg/pull/108) \o/
>>>
>>>> unsupported content with bitdepth 10 (66 tests)
>>>> Iris decoder supports only 8bit NV12
>>>
>>> Any chance we could get 10-bit support soon as well?
>>>
>>> 10-bit is massively popular with AV1, especially with home encodes (see
>>> e.g. https://wiki.x266.mov/docs/encoders/SVT-AV1#encoder-optimization
>>> and the ab-av1 tool's defaults)
>>>
>>>
>>> Thanks,
>>> ~val
>>>
>>
>> Can you give a Tested-by so ? 
>
> Sure, if that's helpful..
>
> Tested-by: Val Packett <val@...kett.cool>
>
> for the series
Thank you! We do have plan to enable 10bit as well.