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

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Message-ID: <de8fe895-79ae-4540-9879-64d6f8f9e239@kernel.org>
Date: Fri, 2 Jan 2026 10:44:40 +0000
From: Bryan O'Donoghue <bod@...nel.org>
To: Val Packett <val@...kett.cool>,
 Deepa Guthyappa Madivalara <deepa.madivalara@....qualcomm.com>,
 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 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 ?

---
bod