Re: [PATCH v4 17/17] media: mtk-vcodec: venc: fix invalid time per frame in S_PARM

[Tiffany Lin]

On Fri, 2020-08-21 at 19:36 +0900, Alexandre Courbot wrote:
> v4l2-compliance expects the driver to adjust the time per frame if it is
> invalid (numerator or denominator set to 0). Adjust it to the default
> value in these cases.
> 

Acked-by: Tiffany Lin <tiffany....@mediatek.com>

> Signed-off-by: Alexandre Courbot <acour...@chromium.org>
> ---
>  drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c 
> b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> index 09baac2dbc36..82b04714f750 100644
> --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> @@ -200,14 +200,18 @@ static int vidioc_venc_s_parm(struct file *file, void 
> *priv,
>                             struct v4l2_streamparm *a)
>  {
>       struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> +     struct v4l2_fract *timeperframe = &a->parm.output.timeperframe;
>  
>       if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
>               return -EINVAL;
>  
> -     ctx->enc_params.framerate_num =
> -                     a->parm.output.timeperframe.denominator;
> -     ctx->enc_params.framerate_denom =
> -                     a->parm.output.timeperframe.numerator;
> +     if (timeperframe->numerator == 0 || timeperframe->denominator == 0) {
> +             timeperframe->numerator = MTK_DEFAULT_FRAMERATE_NUM;
> +             timeperframe->denominator = MTK_DEFAULT_FRAMERATE_DENOM;
> +     }
> +
> +     ctx->enc_params.framerate_num = timeperframe->denominator;
> +     ctx->enc_params.framerate_denom = timeperframe->numerator;
>       ctx->param_change |= MTK_ENCODE_PARAM_FRAMERATE;
>  
>       a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;