MediaMetrics: Prepare statistics for protos

1) Add AudioRecord to Analytics trigger.
2) Log RecordThread statistics.
3) Rename DURATIONNS to EXECUTETIMENS to avoid confusion.
4) Use streamType from server not client.
5) Split MMAP types to MMAP_PLAYBACK and MMAP_CAPTURE.
6) Use string flags for AudioTrack and AudioRecord.
7) Compute underrun frames for MixerThread.
8) Log BT connection state.

Test: adb shell dumpsys media.metrics
Test: atest mediametrics_tests
Test: adb shell dumpsys stats --metadata
Bug: 149850236
Change-Id: Iacf3f117c00ec9f377e62862080252aef9dc084f
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index b806040..4a4899f 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -484,8 +484,10 @@
         return "RECORD";
     case OFFLOAD:
         return "OFFLOAD";
-    case MMAP:
-        return "MMAP";
+    case MMAP_PLAYBACK:
+        return "MMAP_PLAYBACK";
+    case MMAP_CAPTURE:
+        return "MMAP_CAPTURE";
     default:
         return "unknown";
     }
@@ -967,8 +969,10 @@
         return String16("AudioIn");
     case OFFLOAD:
         return String16("AudioOffload");
-    case MMAP:
-        return String16("Mmap");
+    case MMAP_PLAYBACK:
+        return String16("MmapPlayback");
+    case MMAP_CAPTURE:
+        return String16("MmapCapture");
     default:
         ALOG_ASSERT(false);
         return String16("AudioUnknown");
@@ -1477,7 +1481,7 @@
 }
 
 void AudioFlinger::ThreadBase::onEffectEnable(const sp<EffectModule>& effect) {
-    if (mType == OFFLOAD || mType == MMAP) {
+    if (isOffloadOrMmap()) {
         Mutex::Autolock _l(mLock);
         broadcast_l();
     }
@@ -1493,7 +1497,7 @@
 }
 
 void AudioFlinger::ThreadBase::onEffectDisable() {
-    if (mType == OFFLOAD || mType == MMAP) {
+    if (isOffloadOrMmap()) {
         Mutex::Autolock _l(mLock);
         broadcast_l();
     }
@@ -4266,7 +4270,7 @@
     const std::string patchSinksAsString = patchSinksToString(patch);
 
     mThreadMetrics.logEndInterval();
-    mThreadMetrics.logCreatePatch(patchSinksAsString);
+    mThreadMetrics.logCreatePatch(/* inDevices */ {}, patchSinksAsString);
     mThreadMetrics.logBeginInterval();
     // also dispatch to active AudioTracks for MediaMetrics
     for (const auto &track : mActiveTracks) {
@@ -4815,19 +4819,24 @@
     // DeferredOperations handles statistics after setting mixerStatus.
     class DeferredOperations {
     public:
-        explicit DeferredOperations(mixer_state *mixerStatus)
-            : mMixerStatus(mixerStatus) {}
+        DeferredOperations(mixer_state *mixerStatus, ThreadMetrics *threadMetrics)
+            : mMixerStatus(mixerStatus)
+            , mThreadMetrics(threadMetrics) {}
 
         // when leaving scope, tally frames properly.
         ~DeferredOperations() {
             // Tally underrun frames only if we are actually mixing (MIXER_TRACKS_READY)
             // because that is when the underrun occurs.
             // We do not distinguish between FastTracks and NormalTracks here.
+            size_t maxUnderrunFrames = 0;
             if (*mMixerStatus == MIXER_TRACKS_READY && mUnderrunFrames.size() > 0) {
                 for (const auto &underrun : mUnderrunFrames) {
                     underrun.first->tallyUnderrunFrames(underrun.second);
+                    maxUnderrunFrames = max(underrun.second, maxUnderrunFrames);
                 }
             }
+            // send the max underrun frames for this mixer period
+            mThreadMetrics->logUnderrunFrames(maxUnderrunFrames);
         }
 
         // tallyUnderrunFrames() is called to update the track counters
@@ -4839,8 +4848,9 @@
 
     private:
         const mixer_state * const mMixerStatus;
+        ThreadMetrics * const mThreadMetrics;
         std::vector<std::pair<sp<Track>, size_t>> mUnderrunFrames;
-    } deferredOperations(&mixerStatus);
+    } deferredOperations(&mixerStatus, &mThreadMetrics);
     // implicit nested scope for variable capture
 
     bool noFastHapticTrack = true;
@@ -8434,6 +8444,17 @@
 
     // AudioRecord mSampleRate and mChannelCount are constant due to AudioRecord API constraints.
     // But if thread's mSampleRate or mChannelCount changes, how will that affect active tracks?
+
+    audio_input_flags_t flags = mInput->flags;
+    mediametrics::LogItem item(mThreadMetrics.getMetricsId());
+    item.set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_READPARAMETERS)
+        .set(AMEDIAMETRICS_PROP_ENCODING, formatToString(mFormat).c_str())
+        .set(AMEDIAMETRICS_PROP_FLAGS, toString(flags).c_str())
+        .set(AMEDIAMETRICS_PROP_SAMPLERATE, (int32_t)mSampleRate)
+        .set(AMEDIAMETRICS_PROP_CHANNELMASK, (int32_t)mChannelMask)
+        .set(AMEDIAMETRICS_PROP_CHANNELCOUNT, (int32_t)mChannelCount)
+        .set(AMEDIAMETRICS_PROP_FRAMECOUNT, (int32_t)mFrameCount)
+        .record();
 }
 
 uint32_t AudioFlinger::RecordThread::getInputFramesLost()
@@ -8564,7 +8585,7 @@
 
     const std::string pathSourcesAsString = patchSourcesToString(patch);
     mThreadMetrics.logEndInterval();
-    mThreadMetrics.logCreatePatch(pathSourcesAsString);
+    mThreadMetrics.logCreatePatch(pathSourcesAsString, /* outDevices */ {});
     mThreadMetrics.logBeginInterval();
     // also dispatch to active AudioRecords
     for (const auto &track : mActiveTracks) {
@@ -8678,7 +8699,7 @@
 AudioFlinger::MmapThread::MmapThread(
         const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
         AudioHwDevice *hwDev, sp<StreamHalInterface> stream, bool systemReady, bool isOut)
-    : ThreadBase(audioFlinger, id, MMAP, systemReady, isOut),
+    : ThreadBase(audioFlinger, id, (isOut ? MMAP_PLAYBACK : MMAP_CAPTURE), systemReady, isOut),
       mSessionId(AUDIO_SESSION_NONE),
       mPortId(AUDIO_PORT_HANDLE_NONE),
       mHalStream(stream), mHalDevice(hwDev->hwDevice()), mAudioHwDev(hwDev),