additional codec-related media metrics

Audio: samplerate + channel count
Video: video encoding: bytes, duration, #frames

Bug: 181054340
Test: dumpsys media.metrics
Change-Id: I4e5ae07e07070ec355ed0dfbce42a9fa1d25b8ff
diff --git a/services/mediametrics/statsd_codec.cpp b/services/mediametrics/statsd_codec.cpp
index d502b30..1c5ab77 100644
--- a/services/mediametrics/statsd_codec.cpp
+++ b/services/mediametrics/statsd_codec.cpp
@@ -186,6 +186,16 @@
         metrics_proto.set_lifetime_millis(lifetimeMs);
     }
 
+    // new for S; need to plumb through to westworld
+    // android.media.mediacodec.channelCount int32
+    // android.media.mediacodec.sampleRate int32
+
+    // new for S; need to plumb through to westworld
+    // TODO PWG may want these fuzzed up a bit to obscure some precision
+    // android.media.mediacodec.vencode.bytes int64
+    // android.media.mediacodec.vencode.frames int64
+    // android.media.mediacodec.vencode.durationUs int64
+
     std::string serialized;
     if (!metrics_proto.SerializeToString(&serialized)) {
         ALOGE("Failed to serialize codec metrics");