Camera3: Add support for conflicting_devices and resource_cost
resource_cost of a particular camera is calculated based on
overall CPP bandwidth limit and maximum stream configuration
bandwidth requirement.
Change-Id: Ic207ffe07f51a13acff4c6f9ce7f35d683f12e81
diff --git a/camera/QCamera2/HAL3/QCamera3HWI.cpp b/camera/QCamera2/HAL3/QCamera3HWI.cpp
index 00a65da..4c0c461 100644
--- a/camera/QCamera2/HAL3/QCamera3HWI.cpp
+++ b/camera/QCamera2/HAL3/QCamera3HWI.cpp
@@ -5328,11 +5328,31 @@
break;
}
-
info->orientation = gCamCapability[cameraId]->sensor_mount_angle;
info->device_version = CAMERA_DEVICE_API_VERSION_3_2;
info->static_camera_characteristics = gStaticMetadata[cameraId];
+ //For now assume both cameras can operate independently.
+ info->conflicting_devices = NULL;
+ info->conflicting_devices_length = 0;
+
+ //resource cost is 100 * MIN(1.0, m/M),
+ //where m is throughput requirement with maximum stream configuration
+ //and M is CPP maximum throughput.
+ float max_fps = 0.0;
+ for (uint32_t i = 0;
+ i < gCamCapability[cameraId]->fps_ranges_tbl_cnt; i++) {
+ if (max_fps < gCamCapability[cameraId]->fps_ranges_tbl[i].max_fps)
+ max_fps = gCamCapability[cameraId]->fps_ranges_tbl[i].max_fps;
+ }
+ float ratio = 1.0 * MAX_PROCESSED_STREAMS *
+ gCamCapability[cameraId]->active_array_size.width *
+ gCamCapability[cameraId]->active_array_size.height * max_fps /
+ gCamCapability[cameraId]->max_pixel_bandwidth;
+ info->resource_cost = 100 * MIN(1.0, ratio);
+ ALOGI("%s: camera %d resource cost is %d", __func__, cameraId,
+ info->resource_cost);
+
return rc;
}
diff --git a/camera/QCamera2/stack/common/cam_intf.h b/camera/QCamera2/stack/common/cam_intf.h
index 82d0757..f700775 100644
--- a/camera/QCamera2/stack/common/cam_intf.h
+++ b/camera/QCamera2/stack/common/cam_intf.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
@@ -342,6 +342,9 @@
cam_dimension_t max_viewfinder_size;
uint8_t flash_dev_name[QCAMERA_MAX_FILEPATH_LENGTH];
+
+ /* maximum pixel bandwidth shared between cameras */
+ uint64_t max_pixel_bandwidth;
} cam_capability_t;
typedef enum {
