Re: [PATCH v2 05/12] staging: media: rkvdec: Add SPS structure to internal context

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Hi Sebastian,

On Thu, Jan 12, 2023 at 9:56 AM Sebastian Fricke
<sebastian.fricke@xxxxxxxxxxxxx> wrote:
>
> Prepare storing the SPS structure for HEVC & H264 in the internal
> context of the rkvdec instance. This structure is used to figure out
> which capture queue format is appropriate for decoding.
>
> Signed-off-by: Sebastian Fricke <sebastian.fricke@xxxxxxxxxxxxx>
> ---
>  drivers/staging/media/rkvdec/rkvdec.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
> index 633335ebb9c4..332126e7b812 100644
> --- a/drivers/staging/media/rkvdec/rkvdec.h
> +++ b/drivers/staging/media/rkvdec/rkvdec.h
> @@ -105,6 +105,7 @@ struct rkvdec_ctx {
>         struct v4l2_ctrl_handler ctrl_hdl;
>         struct rkvdec_dev *dev;
>         void *priv;
> +       void *sps;

I don't really like re-caching the SPS in the context,
since all the controls are already stored in the context,
via the ctrl_handler.

See hantro_get_ctrl().

Duplicating state can lead to problems and even if we get it
right this time, will be hard to maintain.

Thanks,
Ezequiel

>  };
>
>  static inline struct rkvdec_ctx *fh_to_rkvdec_ctx(struct v4l2_fh *fh)
>
> --
> 2.25.1




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