From 97eb3f1bd2d55bb23afa64c3908377645981cc74 Mon Sep 17 00:00:00 2001
From: Lajos Molnar <lajos@google.com>
Date: Wed, 10 Mar 2021 11:55:09 -0800
Subject: [PATCH] os.Build: add MEDIA_PERFORMANCE_CLASS

Bug: 175813535
Test: atest android.mediapc.cts.PerformanceClassTest
Test: atest android.os.cts.BuildTest
Change-Id: I66e172f4c619a3277bde1004ba4828e2173f69a0
---
 core/api/current.txt            |  1 +
 core/java/android/os/Build.java | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/core/api/current.txt b/core/api/current.txt
index ba98ed6595365..25287fb069cf8 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -30425,6 +30425,7 @@ package android.os {
     field public static final String BASE_OS;
     field public static final String CODENAME;
     field public static final String INCREMENTAL;
+    field public static final int MEDIA_PERFORMANCE_CLASS;
     field public static final int PREVIEW_SDK_INT;
     field public static final String RELEASE;
     field @NonNull public static final String RELEASE_OR_CODENAME;
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 83f78a56487aa..0d9f715c11d4a 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -27,6 +27,7 @@ import android.app.ActivityThread;
 import android.app.Application;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
+import android.sysprop.DeviceProperties;
 import android.sysprop.SocProperties;
 import android.sysprop.TelephonyProperties;
 import android.text.TextUtils;
@@ -297,6 +298,19 @@ public class Build {
         public static final String SECURITY_PATCH = SystemProperties.get(
                 "ro.build.version.security_patch", "");
 
+        /**
+         * The media performance class of the device or 0 if none.
+         * <p>
+         * If this value is not <code>0</code>, the device conforms to the media performance class
+         * definition of the SDK version of this value. This value never changes while a device is
+         * booted, but it may increase when the hardware manufacturer provides an OTA update.
+         * <p>
+         * Possible non-zero values are defined in {@link Build.VERSION_CODES} starting with
+         * {@link Build.VERSION_CODES#S}.
+         */
+        public static final int MEDIA_PERFORMANCE_CLASS =
+                DeviceProperties.media_performance_class().orElse(0);
+
         /**
          * The user-visible SDK version of the framework in its raw String
          * representation; use {@link #SDK_INT} instead.