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/NdkCameraDevice.cpp b/camera/ndk/NdkCameraDevice.cpp
index f2ec573..bc6b87a 100644
--- a/camera/ndk/NdkCameraDevice.cpp
+++ b/camera/ndk/NdkCameraDevice.cpp
@@ -59,6 +59,9 @@
__FUNCTION__, device, request);
return ACAMERA_ERROR_INVALID_PARAMETER;
}
+ if (device->isSharedMode() && !device->isPrimaryClient()) {
+ return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+ }
switch (templateId) {
case TEMPLATE_PREVIEW:
case TEMPLATE_STILL_CAPTURE:
@@ -86,6 +89,9 @@
__FUNCTION__, device, request, physicalCameraIdList);
return ACAMERA_ERROR_INVALID_PARAMETER;
}
+ if (device->isSharedMode() && !device->isPrimaryClient()) {
+ return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+ }
switch (templateId) {
case TEMPLATE_PREVIEW:
case TEMPLATE_STILL_CAPTURE: