From: Pawel Osciak <posciak@xxxxxxxxxxxx>
This event indicates that the decoder has reached a point in the stream,
at which the resolution changes. The userspace is expected to provide a new
set of CAPTURE buffers for the new format before decoding can continue.
Signed-off-by: Pawel Osciak <posciak@xxxxxxxxxxxx>
Signed-off-by: Arun Kumar K <arun.kk@xxxxxxxxxxx>
---
.../DocBook/media/v4l/vidioc-subscribe-event.xml | 8 ++++++++
include/uapi/linux/videodev2.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
index 5c70b61..d848628 100644
--- a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
@@ -155,6 +155,14 @@
</entry>
</row>
<row>
+ <entry><constant>V4L2_EVENT_RESOLUTION_CHANGE</constant></entry>
+ <entry>5</entry>
+ <entry>This event is triggered when a resolution change is detected
+ during runtime by the video decoder. Application may need to
+ reinitialize buffers before proceeding further.
+ </entry>
+ </row>
+ <row>
<entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry>
<entry>0x08000000</entry>
<entry>Base event number for driver-private events.</entry>
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 6ae7bbe..58488b7 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1733,6 +1733,7 @@ struct v4l2_streamparm {
#define V4L2_EVENT_EOS 2
#define V4L2_EVENT_CTRL 3
#define V4L2_EVENT_FRAME_SYNC 4
+#define V4L2_EVENT_RESOLUTION_CHANGE 5
#define V4L2_EVENT_PRIVATE_START 0x08000000
/* Payload for V4L2_EVENT_VSYNC */
--
1.7.9.5
--
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