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authorArun Kumar K <arun.kk@samsung.com>2014-05-14 10:59:42 +0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-05-24 02:50:40 +0400
commit3cbe6e5bcad0b102c06b9c6029fda75630045475 (patch)
treea71d0f73af174620f82fd1b5469fef70e9075fe7 /include/media
parent5b340ea0caac4c123a3bb989a43c021a2dc06fb2 (diff)
downloadlinux-3cbe6e5bcad0b102c06b9c6029fda75630045475.tar.xz
[media] v4l: Add source change event
This event indicates that the video device has encountered a source parameter change during runtime. This can typically be a resolution change detected by a video decoder OR a format change detected by an input connector. This needs to be nofified to the userspace and the application may be expected to reallocate buffers before proceeding. The application can subscribe to events on a specific pad or input port which it is interested in. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-event.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h
index be05d019de25..1ab9045e52e3 100644
--- a/include/media/v4l2-event.h
+++ b/include/media/v4l2-event.h
@@ -132,4 +132,8 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh,
void v4l2_event_unsubscribe_all(struct v4l2_fh *fh);
int v4l2_event_subdev_unsubscribe(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
+int v4l2_src_change_event_subscribe(struct v4l2_fh *fh,
+ const struct v4l2_event_subscription *sub);
+int v4l2_src_change_event_subdev_subscribe(struct v4l2_subdev *sd,
+ struct v4l2_fh *fh, struct v4l2_event_subscription *sub);
#endif /* V4L2_EVENT_H */