linux-kernel - Re: [PATCH v2] media: amphion: fix decoder's interlaced field

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Date:   Wed, 13 Apr 2022 14:26:02 -0400
From:   Nicolas Dufresne <nicolas@...fresne.ca>
To:     Ming Qian <ming.qian@....com>, mchehab@...nel.org,
        shawnguo@...nel.org
Cc:     hverkuil-cisco@...all.nl, robh+dt@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, aisheng.dong@....com,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] media: amphion: fix decoder's interlaced field

Le mardi 12 avril 2022 à 19:01 +0800, Ming Qian a écrit :
> For interlaced frame, the amphion vpu will store the
> two fields sequential into one buffer, top-bottom order
> so the field should be set to V4L2_FIELD_SEQ_TB.
> fix the previous bug that set it to V4L2_FIELD_SEQ_BT wrongly.
> 
> Signed-off-by: Ming Qian <ming.qian@....com>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>

> ---
>  drivers/media/platform/amphion/vdec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c
> index 09628dd0c855..0a1976852b0d 100644
> --- a/drivers/media/platform/amphion/vdec.c
> +++ b/drivers/media/platform/amphion/vdec.c
> @@ -804,7 +804,7 @@ static void vdec_init_fmt(struct vpu_inst *inst)
>  	if (vdec->codec_info.progressive)
>  		inst->cap_format.field = V4L2_FIELD_NONE;
>  	else
> -		inst->cap_format.field = V4L2_FIELD_SEQ_BT;
> +		inst->cap_format.field = V4L2_FIELD_SEQ_TB;
>  	if (vdec->codec_info.color_primaries == V4L2_COLORSPACE_DEFAULT)
>  		vdec->codec_info.color_primaries = V4L2_COLORSPACE_REC709;
>  	if (vdec->codec_info.transfer_chars == V4L2_XFER_FUNC_DEFAULT)