Camera2 multi-client support
Enable multiple clients to establish a shared session. Once the
session is created, allow each client to independently initiate and
terminate streaming using the `startStreaming` and `stopStreaming`
APIs. Additionally, primary clients can call create captureRequest
API. Ensure that all clients can simultaneously stream the camera
images.
Flag: com.android.internal.camera.flags.camera_multi_client
Bug:265196098
API-Coverage-Bug: 377371012
Test: A session is established with a shared configuration that
supports two streams: SurfaceView and ImageReader. The Java client
can create a session utilizing the SurfaceView stream. The native
client can create a session utilizing the ImageReader stream.
The Java client initiates streaming by creating a capture request and
using the `setRepeatingRequest` method. The native client initiates
streaming using the `startStreaming` API and the ImageReader surface
to receive camera images. Also, ran camera CTS tests on these CLs to
ensure we don't introduce any regressions.
Change-Id: I6ab4e5eef094e75c9b1230ad24afe1c50133df86
diff --git a/camera/ndk/NdkCameraManager.cpp b/camera/ndk/NdkCameraManager.cpp
index 28cc9af..a2c34e3 100644
--- a/camera/ndk/NdkCameraManager.cpp
+++ b/camera/ndk/NdkCameraManager.cpp
@@ -227,6 +227,11 @@
__FUNCTION__, mgr, cameraId, callback, device, primaryClient);
return ACAMERA_ERROR_INVALID_PARAMETER;
}
+ bool sharedMode;
+ camera_status_t status = mgr->isCameraDeviceSharingSupported(cameraId, &sharedMode);
+ if ((status != ACAMERA_OK) || !sharedMode) {
+ return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+ }
return mgr->openCamera(cameraId, /*sharedMode*/true, callback, device, primaryClient);
}