| Message ID | 20210803140237.19302-4-umang.jain@ideasonboard.com |
|---|---|
| State | Accepted |
| Delegated to: | Umang Jain |
| Headers | show |
| Series |
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| Related | show |
Hi Umang, On Tue, Aug 03, 2021 at 07:32:36PM +0530, Umang Jain wrote: > Currently, all UVC cameras are reported with CameraLocationExternal [1] > by libcamera-core since there is no universal information or standard, > to know the location of these cameras. However, in the libcamera HAL > layer, we can make an informed decision whether it's external or > internal, simply by checking its presence in the HAL configuration > file. > > The CameraHalManager will now assign the numerical id of the camera > accordingly when initializing the CameraDevice, based on the camera > facing value set in the HAL config file. > > [1] 76809320bb1a ("libcamera: pipeline: uvcvideo: Treat all UVC cameras > as external") > > Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> > Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> > --- > src/android/camera_device.cpp | 13 ++++++++++++- > src/android/camera_hal_manager.cpp | 17 +++++++++++++++++ > 2 files changed, 29 insertions(+), 1 deletion(-) > > diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp > index 692d0a5b..4ebc1524 100644 > --- a/src/android/camera_device.cpp > +++ b/src/android/camera_device.cpp > @@ -330,7 +330,18 @@ int CameraDevice::initialize(const CameraConfigData *cameraConfigData) > facing_ = CAMERA_FACING_BACK; > break; > case properties::CameraLocationExternal: > - facing_ = CAMERA_FACING_EXTERNAL; > + /* > + * If the camera is reported as external, but the > + * CameraHalManager has overriden it, use what is > + * reported in the configuration file. This typically > + * happens for UVC cameras reported as 'External' by > + * libcamera but installed in fixed position on the > + * device. > + */ > + if (cameraConfigData && cameraConfigData->facing != -1) > + facing_ = cameraConfigData->facing; > + else > + facing_ = CAMERA_FACING_EXTERNAL; > break; > } > > diff --git a/src/android/camera_hal_manager.cpp b/src/android/camera_hal_manager.cpp > index b364f62a..5f7bfe26 100644 > --- a/src/android/camera_hal_manager.cpp > +++ b/src/android/camera_hal_manager.cpp > @@ -145,6 +145,23 @@ void CameraHalManager::cameraAdded(std::shared_ptr<Camera> cam) > } > > const CameraConfigData *cameraConfigData = halConfig_.cameraConfigData(cam->id()); > + > + /* > + * Some cameras whose location is reported by libcamera as external may > + * actually be internal to the device. This is common with UVC cameras > + * that are integrated in a laptop. In that case the real location > + * should be specified in the configuration file. > + * > + * If the camera location is external and a configuration entry exists > + * for it, override its location. > + */ > + if (isCameraNew && isCameraExternal) { > + if (cameraConfigData && cameraConfigData->facing != -1) { > + isCameraExternal = false; > + id = numInternalCameras_; > + } > + } > + > if (!isCameraExternal && !cameraConfigData) { > LOG(HAL, Error) > << "HAL configuration entry for internal camera " > -- > 2.31.1 >
diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index 692d0a5b..4ebc1524 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -330,7 +330,18 @@ int CameraDevice::initialize(const CameraConfigData *cameraConfigData) facing_ = CAMERA_FACING_BACK; break; case properties::CameraLocationExternal: - facing_ = CAMERA_FACING_EXTERNAL; + /* + * If the camera is reported as external, but the + * CameraHalManager has overriden it, use what is + * reported in the configuration file. This typically + * happens for UVC cameras reported as 'External' by + * libcamera but installed in fixed position on the + * device. + */ + if (cameraConfigData && cameraConfigData->facing != -1) + facing_ = cameraConfigData->facing; + else + facing_ = CAMERA_FACING_EXTERNAL; break; } diff --git a/src/android/camera_hal_manager.cpp b/src/android/camera_hal_manager.cpp index b364f62a..5f7bfe26 100644 --- a/src/android/camera_hal_manager.cpp +++ b/src/android/camera_hal_manager.cpp @@ -145,6 +145,23 @@ void CameraHalManager::cameraAdded(std::shared_ptr<Camera> cam) } const CameraConfigData *cameraConfigData = halConfig_.cameraConfigData(cam->id()); + + /* + * Some cameras whose location is reported by libcamera as external may + * actually be internal to the device. This is common with UVC cameras + * that are integrated in a laptop. In that case the real location + * should be specified in the configuration file. + * + * If the camera location is external and a configuration entry exists + * for it, override its location. + */ + if (isCameraNew && isCameraExternal) { + if (cameraConfigData && cameraConfigData->facing != -1) { + isCameraExternal = false; + id = numInternalCameras_; + } + } + if (!isCameraExternal && !cameraConfigData) { LOG(HAL, Error) << "HAL configuration entry for internal camera "
Currently, all UVC cameras are reported with CameraLocationExternal [1] by libcamera-core since there is no universal information or standard, to know the location of these cameras. However, in the libcamera HAL layer, we can make an informed decision whether it's external or internal, simply by checking its presence in the HAL configuration file. The CameraHalManager will now assign the numerical id of the camera accordingly when initializing the CameraDevice, based on the camera facing value set in the HAL config file. [1] 76809320bb1a ("libcamera: pipeline: uvcvideo: Treat all UVC cameras as external") Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- src/android/camera_device.cpp | 13 ++++++++++++- src/android/camera_hal_manager.cpp | 17 +++++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-)