diff options
| author | Jacopo Mondi <jacopo@jmondi.org> | 2020-02-27 14:48:01 +0100 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-03-23 16:45:18 +0200 |
| commit | 2c6e6fbc961aaa345355fd92603e770b0221f0c4 (patch) | |
| tree | c5ed8f56337bb06c5db771fbda766c25998f270f | |
| parent | 8daf20485b90af2065e3db0e3fd0cd5b72fd7ac4 (diff) | |
libcamera: v4l2_controls: Cache query control information
Cache the V4L2 control info retrieved with VIDIOC_QUERY_EXT_CTRL
at control listing time for later use.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
| -rw-r--r-- | src/libcamera/include/v4l2_device.h | 1 | ||||
| -rw-r--r-- | src/libcamera/v4l2_device.cpp | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/libcamera/include/v4l2_device.h b/src/libcamera/include/v4l2_device.h index 6bfddefe..ce8edd98 100644 --- a/src/libcamera/include/v4l2_device.h +++ b/src/libcamera/include/v4l2_device.h @@ -48,6 +48,7 @@ private: const struct v4l2_ext_control *v4l2Ctrls, unsigned int count); + std::map<unsigned int, struct v4l2_query_ext_ctrl> controlInfo_; std::vector<std::unique_ptr<V4L2ControlId>> controlIds_; ControlInfoMap controls_; std::string deviceNode_; diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp index 179476e9..7eded67c 100644 --- a/src/libcamera/v4l2_device.cpp +++ b/src/libcamera/v4l2_device.cpp @@ -381,6 +381,8 @@ void V4L2Device::listControls() } controlIds_.emplace_back(std::make_unique<V4L2ControlId>(ctrl)); + controlInfo_.emplace(ctrl.id, ctrl); + ctrls.emplace(controlIds_.back().get(), V4L2ControlInfo(ctrl)); } |