[FFmpeg-devel] [RFC] d3dva security hw+threads

[Lynne]

Sep 2, 2022, 01:46 by timo at rothenpieler.org:

> On 02.09.2022 01:32, Michael Niedermayer wrote:
>
>> Hi all
>>
>> Theres a use after free issue in H.264 Decoding on d3d11va with multiple threads
>> I dont have the hardware/platform nor do i know the hw decoding code so i made
>> no attempt to fix this beyond asking others to ...
>>
>
> hwaccel with multiple threads being broken is not exactly a surprise.
> So we could just disable that, and always have it be one single thread?
>

Is it an API problem or a lavc problem?
Vulkan does allow for threaded submission, so I'd rather keep the option open.
We could add a new codec cap.