CameraService: Use SCHED_FIFO for request queue thread in HFR
- Move SchedulingPolicyService from audioservice to mediautils
- When starting up a high speed stream config, set request queue thread
to SCHED_FIFO using SchedulingPolicyService
Bug: 24227252
Change-Id: I224b59142bd111caf563779f55cddd62385b9bac
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 9d3c533..402cb1d 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -161,6 +161,8 @@
static const nsecs_t kActiveTimeout = 500000000; // 500 ms
static const size_t kInFlightWarnLimit = 20;
static const size_t kInFlightWarnLimitHighSpeed = 256; // batch size 32 * pipe depth 8
+ // SCHED_FIFO priority for request submission thread in HFR mode
+ static const int kConstrainedHighSpeedThreadPriority = 3;
struct RequestTrigger;
// minimal jpeg buffer size: 256KB + blob header