linux-kernel - Re: [PATCH v9 5/6] media: verisilicon: HEVC: Only propose 10 bits compatible pixels formats

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Message-Id: <URUOQR.DFWFJPPFZKJS3@vanguardiasur.com.ar>
Date:   Sun, 26 Feb 2023 09:59:54 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>
Cc:     p.zabel@...gutronix.de, mchehab@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, hverkuil-cisco@...all.nl,
        nicolas.dufresne@...labora.co.uk, robert.mader@...labora.com,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...labora.com,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>
Subject: Re: [PATCH v9 5/6] media: verisilicon: HEVC: Only propose 10 bits
 compatible pixels formats



On Mon, Feb 20 2023 at 11:48:48 AM +0100, Benjamin Gaignard 
<benjamin.gaignard@...labora.com> wrote:
> When decoding a 10bits bitstreams HEVC driver should only expose
> 10bits pixel formats.
> To fulfill this requirement it is needed to call 
> hantro_reset_raw_fmt()
> when bit depth change and to correctly set match_depth in pixel 
> formats
> enumeration.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>

Reviewed-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>

> ---
> version 9:
> - Fix brackets
> 
>  drivers/media/platform/verisilicon/hantro_drv.c   | 12 +++++++++---
>  drivers/media/platform/verisilicon/imx8m_vpu_hw.c |  2 ++
>  2 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c 
> b/drivers/media/platform/verisilicon/hantro_drv.c
> index c237253803f4..7d452f1afaae 100644
> --- a/drivers/media/platform/verisilicon/hantro_drv.c
> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
> @@ -325,9 +325,15 @@ static int hantro_hevc_s_ctrl(struct v4l2_ctrl 
> *ctrl)
>  			   struct hantro_ctx, ctrl_handler);
> 
>  	switch (ctrl->id) {
> -	case V4L2_CID_STATELESS_HEVC_SPS:
> -		ctx->bit_depth = ctrl->p_new.p_hevc_sps->bit_depth_luma_minus8 + 8;
> -		break;
> +	case V4L2_CID_STATELESS_HEVC_SPS: {
> +		const struct v4l2_ctrl_hevc_sps *sps = ctrl->p_new.p_hevc_sps;
> +		int bit_depth = sps->bit_depth_luma_minus8 + 8;
> +
> +		if (ctx->bit_depth == bit_depth)
> +			return 0;
> +
> +		return hantro_reset_raw_fmt(ctx, bit_depth);
> +	}
>  	default:
>  		return -EINVAL;
>  	}
> diff --git a/drivers/media/platform/verisilicon/imx8m_vpu_hw.c 
> b/drivers/media/platform/verisilicon/imx8m_vpu_hw.c
> index b390228fd3b4..f850d8bddef6 100644
> --- a/drivers/media/platform/verisilicon/imx8m_vpu_hw.c
> +++ b/drivers/media/platform/verisilicon/imx8m_vpu_hw.c
> @@ -152,6 +152,7 @@ static const struct hantro_fmt 
> imx8m_vpu_g2_postproc_fmts[] = {
>  	{
>  		.fourcc = V4L2_PIX_FMT_NV12,
>  		.codec_mode = HANTRO_MODE_NONE,
> +		.match_depth = true,
>  		.postprocessed = true,
>  		.frmsize = {
>  			.min_width = FMT_MIN_WIDTH,
> @@ -165,6 +166,7 @@ static const struct hantro_fmt 
> imx8m_vpu_g2_postproc_fmts[] = {
>  	{
>  		.fourcc = V4L2_PIX_FMT_P010,
>  		.codec_mode = HANTRO_MODE_NONE,
> +		.match_depth = true,
>  		.postprocessed = true,
>  		.frmsize = {
>  			.min_width = FMT_MIN_WIDTH,
> --
> 2.34.1
>