Camera2: Stop preview: Wait until HAL is drained

Once camera returns from stopPreview, all preview activity needs to
have stopped. So wait until that's true.

Bug: 6243944
Change-Id: Ifa6cf171bd69015883e26dafb1e49e5ac098025a

parent 9e4c3db0

services/camera/libcameraservice/Camera2Client.cpp

+1 −0

Original line number	Diff line number	Diff line
		@@ -592,6 +592,7 @@ void Camera2Client::stopPreviewLocked() {
		// TODO: Handle record stop here
		case PREVIEW:
		mDevice->setStreamingRequest(NULL);
		mDevice->waitUntilDrained();
		case WAITING_FOR_PREVIEW_WINDOW:
		mState = STOPPED;
		break;