linux-kernel - Re: [PATCH v2 2/9] media: cedrus: h264: Support profile and level controls

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Date:   Tue, 17 Nov 2020 20:24:18 +0100
From:   Jernej Škrabec <jernej.skrabec@...l.net>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ezequiel Garcia <ezequiel@...labora.com>
Cc:     kernel@...labora.com, Jonas Karlman <jonas@...boo.se>,
        Hans Verkuil <hverkuil@...all.nl>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Maxime Ripard <mripard@...nel.org>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Ezequiel Garcia <ezequiel@...labora.com>
Subject: Re: [PATCH v2 2/9] media: cedrus: h264: Support profile and level controls

Hi Ezequiel,

sorry for late review.

First of all, this patch doesn't break anything. However, see comment below.

Dne petek, 13. november 2020 ob 22:51:14 CET je Ezequiel Garcia napisal(a):
> Cedrus supports H.264 profiles from Baseline to High,
> up to Level 5.1, except for the Extended profile
> 
> Expose the V4L2_CID_MPEG_VIDEO_H264_PROFILE and
> V4L2_CID_MPEG_VIDEO_H264_LEVEL so that userspace can
> query the driver for the supported profiles and levels.
> 
> Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
> ---
>  drivers/staging/media/sunxi/cedrus/cedrus.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/
media/sunxi/cedrus/cedrus.c
> index 9a102b7c1bb9..8b0e97752d27 100644
> --- a/drivers/staging/media/sunxi/cedrus/cedrus.c
> +++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
> @@ -103,6 +103,27 @@ static const struct cedrus_control cedrus_controls[] = 
{
>  		.codec		= CEDRUS_CODEC_H264,
>  		.required	= false,
>  	},
> +	{
> +		.cfg = {
> +			.id	= 
V4L2_CID_MPEG_VIDEO_H264_PROFILE,
> +			.min	= 
V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
> +			.def	= 
V4L2_MPEG_VIDEO_H264_PROFILE_MAIN,
> +			.max	= 
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
> +			.menu_skip_mask =
> +				
BIT(V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED),
> +		},
> +		.codec		= CEDRUS_CODEC_H264,
> +		.required	= false,
> +	},
> +	{
> +		.cfg = {
> +			.id = V4L2_CID_MPEG_VIDEO_H264_LEVEL,
> +			.min = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
> +			.max = V4L2_MPEG_VIDEO_H264_LEVEL_5_1,

I went through several datasheets and only newer ones (H6, H616) state max. 
supported level, which is 4.2. Please change it in next revision.

After that, you can add
Reviewed-by: Jernej Skrabec <jernej.skrabec@...l.net>

Best regards,
Jernej

> +		},
> +		.codec		= CEDRUS_CODEC_H264,
> +		.required	= false,
> +	},
>  	{
>  		.cfg = {
>  			.id	= V4L2_CID_MPEG_VIDEO_HEVC_SPS,
> -- 
> 2.27.0
> 
>