API access to mediametrics
provide SDK/API access to media metrics for user apps. This lets the
apps metrics data for their instances of player and codecs. Others
to come.
Bug: 34715803
Test: booted, invoked new APIs to verify desired results
Change-Id: Iaae6406aadef30adc893952961ac154a7c4c761d
diff --git a/media/jni/android_media_MediaMetricsJNI.cpp b/media/jni/android_media_MediaMetricsJNI.cpp
new file mode 100644
index 0000000..fb606ba
--- /dev/null
+++ b/media/jni/android_media_MediaMetricsJNI.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android_runtime/AndroidRuntime.h>
+#include <jni.h>
+#include <JNIHelp.h>
+
+#include "android_media_MediaMetricsJNI.h"
+#include <media/MediaAnalyticsItem.h>
+
+
+namespace android {
+
+// place the attributes into a java Bundle object
+// decide whether this is appropriately scoped here.
+// if we do it somewhere else, we have to figure a "give me all the attrs"
+// access to the inside of MediaAnalyticsItem
+jobject MediaMetricsJNI::writeMetricsToBundle(JNIEnv* env, MediaAnalyticsItem *item, jobject mybundle) {
+
+ jclass clazzBundle = env->FindClass("android/os/Bundle");
+ if (clazzBundle==NULL) {
+ ALOGD("can't find android/os/Bundle");
+ return NULL;
+ }
+ // sometimes the caller provides one for us to fill
+ if (mybundle == NULL) {
+ // create the bundle
+ jmethodID constructID = env->GetMethodID(clazzBundle, "<init>", "()V");
+ mybundle = env->NewObject(clazzBundle, constructID);
+ if (mybundle == NULL) {
+ return NULL;
+ }
+ }
+
+ // grab methods that we can invoke
+ jmethodID setIntID = env->GetMethodID(clazzBundle, "putInt", "(Ljava/lang/String;I)V");
+ jmethodID setLongID = env->GetMethodID(clazzBundle, "putLong", "(Ljava/lang/String;J)V");
+ jmethodID setDoubleID = env->GetMethodID(clazzBundle, "putDouble", "(Ljava/lang/String;D)V");
+ jmethodID setStringID = env->GetMethodID(clazzBundle, "putString", "(Ljava/lang/String;Ljava/lang/String;)V");
+
+ // env, class, method, {parms}
+ //env->CallVoidMethod(env, mybundle, setIntID, jstr, jint);
+
+ // iterate through my attributes
+ // -- get name, get type, get value
+ // -- insert appropriately into the bundle
+ for (size_t i = 0 ; i < item->mPropCount; i++ ) {
+ MediaAnalyticsItem::Prop *prop = &item->mProps[i];
+ // build the key parameter from prop->mName
+ jstring keyName = env->NewStringUTF(prop->mName);
+ // invoke the appropriate method to insert
+ switch (prop->mType) {
+ case MediaAnalyticsItem::kTypeInt32:
+ env->CallVoidMethod(mybundle, setIntID,
+ keyName, (jint) prop->u.int32Value);
+ break;
+ case MediaAnalyticsItem::kTypeInt64:
+ env->CallVoidMethod(mybundle, setLongID,
+ keyName, (jlong) prop->u.int64Value);
+ break;
+ case MediaAnalyticsItem::kTypeDouble:
+ env->CallVoidMethod(mybundle, setDoubleID,
+ keyName, (jdouble) prop->u.doubleValue);
+ break;
+ case MediaAnalyticsItem::kTypeCString:
+ env->CallVoidMethod(mybundle, setStringID, keyName,
+ env->NewStringUTF(prop->u.CStringValue));
+ break;
+ default:
+ ALOGE("to_String bad item type: %d for %s",
+ prop->mType, prop->mName);
+ break;
+ }
+ }
+
+ return mybundle;
+}
+
+}; // namespace android
+