change media analytics references to media metrics

part 1: make directory names coherent.

Bug: 145780674
Test: build
Test: atest mediametrics_test
Test: atest CtsNativeMediaMetricsTestCases
Change-Id: If552a742df02206f703801a6530b66fe5addac53
diff --git a/services/mediametrics/iface_statsd.cpp b/services/mediametrics/iface_statsd.cpp
new file mode 100644
index 0000000..962cafe
--- /dev/null
+++ b/services/mediametrics/iface_statsd.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "iface_statsd"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <dirent.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include <memory>
+#include <string.h>
+#include <pwd.h>
+
+#include "MediaMetricsService.h"
+#include "iface_statsd.h"
+
+#include <statslog.h>
+
+namespace android {
+
+// set of routines that crack a MediaAnalyticsItem
+// and send it off to statsd with the appropriate hooks
+//
+// each MediaAnalyticsItem type (extractor, codec, nuplayer, etc)
+// has its own routine to handle this.
+//
+
+bool enabled_statsd = true;
+
+struct statsd_hooks {
+    const char *key;
+    bool (*handler)(const MediaAnalyticsItem *);
+};
+
+// keep this sorted, so we can do binary searches
+static constexpr struct statsd_hooks statsd_handlers[] =
+{
+    { "audiopolicy", statsd_audiopolicy },
+    { "audiorecord", statsd_audiorecord },
+    { "audiothread", statsd_audiothread },
+    { "audiotrack", statsd_audiotrack },
+    { "codec", statsd_codec},
+    { "drm.vendor.Google.WidevineCDM", statsd_widevineCDM },
+    { "drmmanager", statsd_drmmanager },
+    { "extractor", statsd_extractor },
+    { "mediadrm", statsd_mediadrm },
+    { "nuplayer", statsd_nuplayer },
+    { "nuplayer2", statsd_nuplayer },
+    { "recorder", statsd_recorder },
+};
+
+// give me a record, i'll look at the type and upload appropriately
+bool dump2Statsd(const std::shared_ptr<const MediaAnalyticsItem>& item) {
+    if (item == NULL) return false;
+
+    // get the key
+    std::string key = item->getKey();
+
+    if (!enabled_statsd) {
+        ALOGV("statsd logging disabled for record key=%s", key.c_str());
+        return false;
+    }
+
+    for (const auto &statsd_handler : statsd_handlers) {
+        if (key == statsd_handler.key) {
+            return statsd_handler.handler(item.get());
+        }
+    }
+    return false;
+}
+
+} // namespace android