linux-kernel - Re: [PATCH 3/3] media: imx: Allow BT.709 encoding for IC routes

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Date:   Mon, 4 Feb 2019 17:55:29 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     linux-media@...r.kernel.org
Cc:     Tim Harvey <tharvey@...eworks.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] media: imx: Allow BT.709 encoding for IC routes

Sorry this patch isn't working, it's not possible to set BT.709 
encoding, working on a fix for v2.

Steve


On 2/3/19 11:47 AM, Steve Longerbeam wrote:
> The IC now supports BT.709 Y'CbCr encoding, in addition to existing BT.601
> encoding, so allow both, for pipelines that route through the IC.
>
> Reported-by: Tim Harvey <tharvey@...eworks.com>
> Signed-off-by: Steve Longerbeam <slongerbeam@...il.com>
> ---
>   drivers/staging/media/imx/imx-media-utils.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
> index 5f110d90a4ef..3512f09fb226 100644
> --- a/drivers/staging/media/imx/imx-media-utils.c
> +++ b/drivers/staging/media/imx/imx-media-utils.c
> @@ -571,7 +571,9 @@ void imx_media_fill_default_mbus_fields(struct v4l2_mbus_framefmt *tryfmt,
>   		tryfmt->quantization = is_rgb ?
>   			V4L2_QUANTIZATION_FULL_RANGE :
>   			V4L2_QUANTIZATION_LIM_RANGE;
> -		tryfmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
> +		if (tryfmt->ycbcr_enc != V4L2_YCBCR_ENC_601 &&
> +		    tryfmt->ycbcr_enc != V4L2_YCBCR_ENC_709)
> +			tryfmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
>   	}
>   }
>   EXPORT_SYMBOL_GPL(imx_media_fill_default_mbus_fields);