ACodec: Handle HDR10+ metadata at OutputPortSettingsChangedState

[Description]
handle kWhatSetParameters message in OutputPortSettingsChangedState
handle OMX_EventConfigUpdate event in OutputPortSettingsChangedState

In HDR10+ test, we have to associate each HDR10+ metadata to a particular
frame. If receive a kWhatSetParameters message with "hdr10-plus-info"
buffer, it should not be deferred in OutputPortSettingsChangedState and
adopt OMX_SetConfig to associates this config with the next input buffer
sent in OMX_EmptyThisBuffer. The OMX_EventConfigUpdate event report from
component should be handled also in OutputPortSettingsChangedState,
where is to associate updated "hdr10-plus-info" metadata with the next
output buffer sent via FillBufferDone callback.

Bug: 157213958
Bug: 157435393
Change-Id: I27e4614487414063831fa760b9e9ca96b1c3712c
(cherry picked from commit c111aa4)

media/libstagefright/ACodec.cpp

@@ -8269,13 +8269,34 @@ bool ACodec::OutputPortSettingsChangedState::onMessageReceived(
             FALLTHROUGH_INTENDED;
         }
         case kWhatResume:
+        {
+            ALOGV("[%s] Deferring resume", mCodec->mComponentName.c_str());
+
+            mCodec->deferMessage(msg);
+            handled = true;
+            break;
+        }
+
         case kWhatSetParameters:
         {
-            if (msg->what() == kWhatResume) {
-                ALOGV("[%s] Deferring resume", mCodec->mComponentName.c_str());
+            sp<AMessage> params;
+            CHECK(msg->findMessage("params", &params));
+
+            sp<ABuffer> hdr10PlusInfo;
+            if (params->findBuffer("hdr10-plus-info", &hdr10PlusInfo)) {
+                if (hdr10PlusInfo != nullptr && hdr10PlusInfo->size() > 0) {
+                    (void)mCodec->setHdr10PlusInfo(hdr10PlusInfo);
+                }
+                params->removeEntryAt(params->findEntryByName("hdr10-plus-info"));
+
+                if (params->countEntries() == 0) {
+                    msg->removeEntryAt(msg->findEntryByName("params"));
+                }
             }
 
-            mCodec->deferMessage(msg);
+            if (msg->countEntries() > 0) {
+                mCodec->deferMessage(msg);
+            }
             handled = true;
             break;
         }
@@ -8390,6 +8411,15 @@ bool ACodec::OutputPortSettingsChangedState::onOMXEvent(
             return false;
         }
 
+        case OMX_EventConfigUpdate:
+        {
+            CHECK_EQ(data1, (OMX_U32)kPortIndexOutput);
+
+            mCodec->onConfigUpdate((OMX_INDEXTYPE)data2);
+
+            return true;
+        }
+
         default:
             return BaseState::onOMXEvent(event, data1, data2);
     }