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media: v4l2-common: Add an helper to apply frmsize constraints

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The rockchip VPU driver is open-coding this logic which seems pretty
generic. Let's provide an helper to apply the min/max and alignment
constraints on width/height.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Boris Brezillon 2019-05-28 13:02:18 -04:00 • committed by Mauro Carvalho Chehab
parent ce57a82f8a
commit 32cddf9c94
2 changed files with 29 additions and 0 deletions
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include/media/v4l2-common.h
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@ -420,6 +420,8 @@ struct v4l2_format_info {
const struct v4l2_format_info *v4l2_format_info(u32 format);
void v4l2_apply_frmsize_constraints(u32 *width, u32 *height,
const struct v4l2_frmsize_stepwise *frmsize);
int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, u32 pixelformat,
u32 width, u32 height);
int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,