linux-kernel - Re: [PATCH v2 12/18] media: mtk-vcodec: venc: set OUTPUT buffers field to V4L2_FIELD

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Date:   Wed, 1 Jul 2020 11:46:30 +0800
From:   Tiffany Lin <tiffany.lin@...iatek.com>
To:     Alexandre Courbot <acourbot@...omium.org>
CC:     Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Rui Wang <gtk_ruiwang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        "Pi-Hsun Shih" <pihsun@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        <linux-media@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 12/18] media: mtk-vcodec: venc: set OUTPUT buffers
 field to V4L2_FIELD_NONE

On Fri, 2020-06-26 at 17:04 +0900, Alexandre Courbot wrote:
> A default value of 0 means V4L2_FIELD_ANY, which is not correct.
> Reported by v4l2-compliance.
> 

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


> Signed-off-by: Alexandre Courbot <acourbot@...omium.org>
> ---
>  drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> index f833aee4a06f..1a981d842c19 100644
> --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> @@ -893,8 +893,17 @@ static void vb2ops_venc_stop_streaming(struct vb2_queue *q)
>  	ctx->state = MTK_STATE_FREE;
>  }
>  
> +static int vb2ops_venc_buf_out_validate(struct vb2_buffer *vb)
> +{
> +	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> +
> +	vbuf->field = V4L2_FIELD_NONE;
> +	return 0;
> +}
> +
>  static const struct vb2_ops mtk_venc_vb2_ops = {
>  	.queue_setup		= vb2ops_venc_queue_setup,
> +	.buf_out_validate	= vb2ops_venc_buf_out_validate,
>  	.buf_prepare		= vb2ops_venc_buf_prepare,
>  	.buf_queue		= vb2ops_venc_buf_queue,
>  	.wait_prepare		= vb2_ops_wait_prepare,