commit 79d2b28f3a04d7914bb932a65d87117c0c7c11cf
author Chong Zhang <chz@google.com> Tue Apr 17 14:14:31 2018 -0700
committer Chong Zhang <chz@google.com> Wed Apr 18 13:46:03 2018 -0700
tree 386c0e23123c52191f3c098351898cd6a0bdb4bf
parent 1cdd674121096020f7f17c216940a14aa58ff31e

Request cpuset change for 1080p HDR using soft decoder

Keep track of cpuset change requests in ResourceManagerService,
and request changing of cpuset via SchedulingPolicyService.

Bug: 72841545

Test:

1)Using modified Youtube/Exoplayer (that uses softMediaCodec
to decode VP9 profile2), manually verify the following:

- media.codec is put into top-app cpuset playing VP9 1080p HDR
- media.codec is put back into foreground after done
- media.codec stays in foreground cpuset playing other content
- kill the app process, verify media.codec is put back to
  foreground until new instances request top-app
- kill mediaserver process, verify media.codec is put back to
  foreground until new instances request top-app
- kill media.codec process, starting playback again, verify new
  media.codec's cpuset can be changed correctly
- kill system_server process (using 'adb shell stop &&
  adb shell start'), verify media.codec is put back to
  foreground. Restart playback and verify the cpuset can be
  changed correctly.

2) CTS post submit tests

Change-Id: Iba50ede1c08b695821fe4f56dbfc5694eab54e7b

media/utils/ISchedulingPolicyService.cpp

diff --git a/media/utils/ISchedulingPolicyService.cpp b/media/utils/ISchedulingPolicyService.cpp
index 22fbc97..b210404 100644
--- a/media/utils/ISchedulingPolicyService.cpp
+++ b/media/utils/ISchedulingPolicyService.cpp
@@ -25,6 +25,7 @@
 // Keep in sync with frameworks/base/core/java/android/os/ISchedulingPolicyService.aidl
 enum {
     REQUEST_PRIORITY_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
+    REQUEST_CPUSET_BOOST,
 };
 
 // ----------------------------------------------------------------------
@@ -60,6 +61,23 @@
         }
         return reply.readInt32();
     }
+
+    virtual int requestCpusetBoost(bool enable, const sp<IInterface>& client)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
+        data.writeInt32(enable);
+        data.writeStrongBinder(IInterface::asBinder(client));
+        status_t status = remote()->transact(REQUEST_CPUSET_BOOST, data, &reply, 0);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        // fail on exception: force binder reconnection
+        if (reply.readExceptionCode() != 0) {
+            return DEAD_OBJECT;
+        }
+        return reply.readInt32();
+    }
 };
 
 IMPLEMENT_META_INTERFACE(SchedulingPolicyService, "android.os.ISchedulingPolicyService");
@@ -71,6 +89,7 @@
 {
     switch (code) {
     case REQUEST_PRIORITY_TRANSACTION:
+    case REQUEST_CPUSET_BOOST:
         // Not reached
         return NO_ERROR;
         break;