From: Hans Verkuil <hverkuil@xs4all.nl>
To: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
linux-media@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
tomoharu.fukawa.eb@renesas.com,
Kieran Bingham <kieran.bingham@ideasonboard.com>
Subject: Re: [PATCH v12 23/33] rcar-vin: force default colorspace for media centric mode
Date: Fri, 9 Mar 2018 16:41:19 +0100 [thread overview]
Message-ID: <421d4a38-32d2-25f1-918c-fd9adbf6d633@xs4all.nl> (raw)
In-Reply-To: <20180307220511.9826-24-niklas.soderlund+renesas@ragnatech.se>
On 07/03/18 23:05, Niklas Söderlund wrote:
> The V4L2 specification clearly documents the colorspace fields as being
> set by drivers for capture devices. Using the values supplied by
> userspace thus wouldn't comply with the API. Until the API is updated to
> allow for userspace to set these Hans wants the fields to be set by the
> driver to fixed values.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Regards,
Hans
> ---
> drivers/media/platform/rcar-vin/rcar-v4l2.c | 21 +++++++++++++++++++--
> 1 file changed, 19 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> index 2280535ca981993f..ea0759a645e49490 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -664,12 +664,29 @@ static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
> * V4L2 Media Controller
> */
>
> +static int rvin_mc_try_format(struct rvin_dev *vin, struct v4l2_pix_format *pix)
> +{
> + /*
> + * The V4L2 specification clearly documents the colorspace fields
> + * as being set by drivers for capture devices. Using the values
> + * supplied by userspace thus wouldn't comply with the API. Until
> + * the API is updated force fixed vaules.
> + */
> + pix->colorspace = RVIN_DEFAULT_COLORSPACE;
> + pix->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix->colorspace);
> + pix->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix->colorspace);
> + pix->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, pix->colorspace,
> + pix->ycbcr_enc);
> +
> + return rvin_format_align(vin, pix);
> +}
> +
> static int rvin_mc_try_fmt_vid_cap(struct file *file, void *priv,
> struct v4l2_format *f)
> {
> struct rvin_dev *vin = video_drvdata(file);
>
> - return rvin_format_align(vin, &f->fmt.pix);
> + return rvin_mc_try_format(vin, &f->fmt.pix);
> }
>
> static int rvin_mc_s_fmt_vid_cap(struct file *file, void *priv,
> @@ -681,7 +698,7 @@ static int rvin_mc_s_fmt_vid_cap(struct file *file, void *priv,
> if (vb2_is_busy(&vin->queue))
> return -EBUSY;
>
> - ret = rvin_format_align(vin, &f->fmt.pix);
> + ret = rvin_mc_try_format(vin, &f->fmt.pix);
> if (ret)
> return ret;
>
>
next prev parent reply other threads:[~2018-03-09 15:41 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-07 22:04 [PATCH v12 00/33] rcar-vin: Add Gen3 with media controller Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 01/33] dt-bindings: media: rcar_vin: Reverse SoC part number list Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 02/33] dt-bindings: media: rcar_vin: add device tree support for r8a774[35] Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 03/33] rcar-vin: add Gen3 devicetree bindings documentation Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 04/33] rcar-vin: rename poorly named initialize and cleanup functions Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 05/33] rcar-vin: unregister video device on driver removal Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 06/33] rcar-vin: move subdevice handling to async callbacks Niklas Söderlund
2018-03-09 15:16 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 07/33] rcar-vin: move model information to own struct Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 08/33] rcar-vin: move max width and height information to chip information Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 09/33] rcar-vin: move functions regarding scaling Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 10/33] rcar-vin: all Gen2 boards can scale simplify logic Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 11/33] rcar-vin: set a default field to fallback on Niklas Söderlund
2018-03-09 15:25 ` Hans Verkuil
2018-03-09 16:17 ` Niklas Söderlund
2018-03-09 16:28 ` Hans Verkuil
2018-03-09 17:07 ` Niklas Söderlund
2018-03-09 17:13 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 12/33] rcar-vin: fix handling of single field frames (top, bottom and alternate fields) Niklas Söderlund
2018-03-09 15:28 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 13/33] rcar-vin: update bytesperline and sizeimage calculation Niklas Söderlund
2018-03-09 15:29 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 14/33] rcar-vin: align pixelformat check Niklas Söderlund
2018-03-09 15:30 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 15/33] rcar-vin: break out format alignment and checking Niklas Söderlund
2018-03-09 15:30 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 16/33] rcar-vin: simplify how formats are set and reset Niklas Söderlund
2018-03-09 15:34 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 17/33] rcar-vin: cache video standard Niklas Söderlund
2018-03-09 15:39 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 18/33] rcar-vin: move media bus configuration to struct rvin_dev Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 19/33] rcar-vin: enable Gen3 hardware configuration Niklas Söderlund
2018-03-07 22:04 ` [PATCH v12 20/33] rcar-vin: add function to manipulate Gen3 chsel value Niklas Söderlund
2018-03-09 15:40 ` Hans Verkuil
2018-03-07 22:04 ` [PATCH v12 21/33] rcar-vin: add flag to switch to media controller mode Niklas Söderlund
2018-03-07 22:05 ` [PATCH v12 22/33] rcar-vin: use different v4l2 operations in " Niklas Söderlund
2018-03-07 22:05 ` [PATCH v12 23/33] rcar-vin: force default colorspace for media centric mode Niklas Söderlund
2018-03-09 15:41 ` Hans Verkuil [this message]
2018-03-07 22:05 ` [PATCH v12 24/33] rcar-vin: prepare for media controller mode initialization Niklas Söderlund
2018-03-07 22:05 ` [PATCH v12 25/33] rcar-vin: add group allocator functions Niklas Söderlund
2018-03-09 15:42 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 26/33] rcar-vin: change name of video device Niklas Söderlund
2018-03-09 15:43 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 27/33] rcar-vin: add chsel information to rvin_info Niklas Söderlund
2018-03-09 15:43 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 28/33] rcar-vin: parse Gen3 OF and setup media graph Niklas Söderlund
2018-03-09 15:45 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 29/33] rcar-vin: add link notify for Gen3 Niklas Söderlund
2018-03-09 15:46 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 30/33] rcar-vin: extend {start,stop}_streaming to work with media controller Niklas Söderlund
2018-03-09 15:47 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 31/33] rcar-vin: enable support for r8a7795 Niklas Söderlund
2018-03-09 15:47 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 32/33] rcar-vin: enable support for r8a7796 Niklas Söderlund
2018-03-09 15:48 ` Hans Verkuil
2018-03-07 22:05 ` [PATCH v12 33/33] rcar-vin: enable support for r8a77970 Niklas Söderlund
2018-03-09 15:48 ` Hans Verkuil
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