[FFmpeg-devel] [PATCH] dxva2: add AV1 decode support

[Mark Thompson]

On 05/11/2020 15:53, Hendrik Leppkes wrote:
> ---
>   Changelog              |   1 +
>   configure              |   7 +
>   libavcodec/Makefile    |   2 +
>   libavcodec/av1dec.c    |  25 +-
>   libavcodec/dxva2.c     |  10 +-
>   libavcodec/dxva2_av1.c | 504 +++++++++++++++++++++++++++++++++++++++++
>   libavcodec/hwaccels.h  |   3 +
>   libavcodec/version.h   |   2 +-
>   8 files changed, 550 insertions(+), 4 deletions(-)
>   create mode 100644 libavcodec/dxva2_av1.c
> 
> ...
> diff --git a/libavcodec/dxva2_av1.c b/libavcodec/dxva2_av1.c
> new file mode 100644
> index 0000000000..d04c96becf
> --- /dev/null
> +++ b/libavcodec/dxva2_av1.c
> @@ -0,0 +1,504 @@
> ...
> +    // XXX: setting the StatusReportFeedbackNumber breaks decoding on some drivers
> +    // we never use the status reporting functionality, so just skip on that
> +    //pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;

If it's worth mentioning this at all then it would probably help to note exactly what drivers are breaking.

> +    return 0;
> +}
> +

Is there is an Intel implementation of this yet?  Maybe poke one of the Intel people to try it if possible.

I don't have anything to test this, but from just reading through it looks pretty good to me.

Thanks,

- Mark