Re: [PATCH v4 36/36] media: imx: propagate sink pad formats to source pads

From: Steve Longerbeam
Date: Thu Feb 16 2017 - 13:19:34 EST




On 02/16/2017 03:29 AM, Philipp Zabel wrote:
On Wed, 2017-02-15 at 18:19 -0800, Steve Longerbeam wrote:
[...]
diff --git a/drivers/staging/media/imx/imx-ic-prpencvf.c b/drivers/staging/media/imx/imx-ic-prpencvf.c
index dd9d499..c43f85f 100644
--- a/drivers/staging/media/imx/imx-ic-prpencvf.c
+++ b/drivers/staging/media/imx/imx-ic-prpencvf.c
@@ -806,16 +806,22 @@ static int prp_set_fmt(struct v4l2_subdev *sd,
if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
cfg->try_fmt = sdformat->format;
} else {
- priv->format_mbus[sdformat->pad] = sdformat->format;
+ struct v4l2_mbus_framefmt *f =
+ &priv->format_mbus[sdformat->pad];
+ struct v4l2_mbus_framefmt *outf =
+ &priv->format_mbus[PRPENCVF_SRC_PAD];
+
+ *f = sdformat->format;
priv->cc[sdformat->pad] = cc;
- if (sdformat->pad == PRPENCVF_SRC_PAD) {
- /*
- * update the capture device format if this is
- * the IDMAC output pad
- */
- imx_media_mbus_fmt_to_pix_fmt(&vdev->fmt.fmt.pix,
- &sdformat->format, cc);
+
+ /* propagate format to source pad */
+ if (sdformat->pad == PRPENCVF_SINK_PAD) {
+ outf->width = f->width;
+ outf->height = f->height;

What about media bus format, field, and colorimetry?

Right, I need to propagate a default media bus format and field
that works.

As for colorimtery, I did see the work you are doing in your
branch, but was not sure if you were finished with that support.
Can you send me a patch?


}
+
+ /* update the capture device format from output pad */
+ imx_media_mbus_fmt_to_pix_fmt(&vdev->fmt.fmt.pix, outf, cc);
}

return 0;
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 3e6b607..9d9ec03 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -1161,19 +1161,27 @@ static int csi_set_fmt(struct v4l2_subdev *sd,
if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
cfg->try_fmt = sdformat->format;
} else {
+ struct v4l2_mbus_framefmt *f_direct, *f_idmac;
+
priv->format_mbus[sdformat->pad] = sdformat->format;
priv->cc[sdformat->pad] = cc;
- /* Reset the crop window if this is the input pad */
- if (sdformat->pad == CSI_SINK_PAD)
+
+ f_direct = &priv->format_mbus[CSI_SRC_PAD_DIRECT];
+ f_idmac = &priv->format_mbus[CSI_SRC_PAD_IDMAC];
+
+ if (sdformat->pad == CSI_SINK_PAD) {
+ /* reset the crop window */
priv->crop = crop;
- else if (sdformat->pad == CSI_SRC_PAD_IDMAC) {
- /*
- * update the capture device format if this is
- * the IDMAC output pad
- */
- imx_media_mbus_fmt_to_pix_fmt(&vdev->fmt.fmt.pix,
- &sdformat->format, cc);
+
+ /* propagate format to source pads */
+ f_direct->width = crop.width;
+ f_direct->height = crop.height;
+ f_idmac->width = crop.width;
+ f_idmac->height = crop.height;

This is missing also media bus format, field and colorimetry
propagation.

Yep, will add that.

Steve


}
+
+ /* update the capture device format from IDMAC output pad */
+ imx_media_mbus_fmt_to_pix_fmt(&vdev->fmt.fmt.pix, f_idmac, cc);
}

return 0;
diff --git a/drivers/staging/media/imx/imx-media-vdic.c b/drivers/staging/media/imx/imx-media-vdic.c
index 61e6017..55fb522 100644
--- a/drivers/staging/media/imx/imx-media-vdic.c
+++ b/drivers/staging/media/imx/imx-media-vdic.c
@@ -649,8 +649,21 @@ static int vdic_set_fmt(struct v4l2_subdev *sd,
if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
cfg->try_fmt = sdformat->format;
} else {
- priv->format_mbus[sdformat->pad] = sdformat->format;
+ struct v4l2_mbus_framefmt *f =
+ &priv->format_mbus[sdformat->pad];
+ struct v4l2_mbus_framefmt *outf =
+ &priv->format_mbus[VDIC_SRC_PAD_DIRECT];
+
+ *f = sdformat->format;
priv->cc[sdformat->pad] = cc;
+
+ /* propagate format to source pad */
+ if (sdformat->pad == VDIC_SINK_PAD_DIRECT ||
+ sdformat->pad == VDIC_SINK_PAD_IDMAC) {
+ outf->width = f->width;
+ outf->height = f->height;
+ outf->field = V4L2_FIELD_NONE;

This is missing colorimetry, too.

regards
Philipp