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[media] v4l2-ioctl: call g_selection before calling cropcap

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If the vidioc_cropcap op is implemented by the driver then the v4l2
core will call that directly.

If g_selection is available, then the core cropcap implementation
uses g_selection to fill in the bounds and defrect and it sets the
pixelaspect to 1x1.

But if both are available, then I would like to use g_selection to
fill in defrect and bounds before calling cropcap. That way the
driver's cropcap implementation doesn't have to set defrect or
bounds.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-06-13 04:31:06 -03:00 committed by Mauro Carvalho Chehab
parent 865c4642e3
commit 9409945c7f
1 changed files with 26 additions and 22 deletions
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48
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1842,37 +1842,41 @@ static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_cropcap *p = arg;
struct v4l2_selection s = { .type = p->type };
int ret;
if (ops->vidioc_cropcap)
return ops->vidioc_cropcap(file, fh, p);
if (ops->vidioc_g_selection) {
struct v4l2_selection s = { .type = p->type };
int ret;
/* obtaining bounds */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
else
s.target = V4L2_SEL_TGT_CROP_BOUNDS;
/* obtaining bounds */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
else
s.target = V4L2_SEL_TGT_CROP_BOUNDS;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->bounds = s.r;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->bounds = s.r;
/* obtaining defrect */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
else
s.target = V4L2_SEL_TGT_CROP_DEFAULT;
/* obtaining defrect */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
else
s.target = V4L2_SEL_TGT_CROP_DEFAULT;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->defrect = s.r;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->defrect = s.r;
}
/* setting trivial pixelaspect */
p->pixelaspect.numerator = 1;
p->pixelaspect.denominator = 1;
if (ops->vidioc_cropcap)
return ops->vidioc_cropcap(file, fh, p);
return 0;
}