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authorPaul Elder <paul.elder@ideasonboard.com>2020-06-23 14:33:39 +0900
committerPaul Elder <paul.elder@ideasonboard.com>2020-06-25 23:47:13 +0900
commit6a5d416b3793401d8bad6e3d398847eeb1158ba0 (patch)
tree603b8684c426054d8db48be778aaf85b1efe4abe
parentb3dc3d7cf248c2225cd38f6dc54b47d8e012247e (diff)
v4l2: v4l2_camera_proxy: noop if streamon when stream is already on
If VIDIOC_STREMAON is called when the stream is already on, do a noop. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-rw-r--r--src/v4l2/v4l2_camera_proxy.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 08fd3fdc..225ce42b 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -623,6 +623,9 @@ int V4L2CameraProxy::vidioc_streamon(V4L2CameraFile *file, int *arg)
if (!hasOwnership(file))
return -EBUSY;
+ if (vcam_->isRunning())
+ return 0;
+
currentBuf_ = 0;
return vcam_->streamOn();