Merge "Camera: Close acquire fences on failed buffers" into oc-dev
diff --git a/media/libaaudio/src/binding/AAudioBinderClient.h b/media/libaaudio/src/binding/AAudioBinderClient.h
index f7f2808..ca2da29 100644
--- a/media/libaaudio/src/binding/AAudioBinderClient.h
+++ b/media/libaaudio/src/binding/AAudioBinderClient.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_AAUDIO_BINDER_CLIENT_H
-#define AAUDIO_AAUDIO_BINDER_CLIENT_H
+#ifndef ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
+#define ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
 
 #include <aaudio/AAudio.h>
 #include "AAudioServiceDefinitions.h"
@@ -91,4 +91,4 @@
 
 } /* namespace aaudio */
 
-#endif //AAUDIO_AAUDIO_BINDER_CLIENT_H
+#endif //ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
diff --git a/media/libaaudio/src/binding/AAudioServiceInterface.h b/media/libaaudio/src/binding/AAudioServiceInterface.h
index b565499..824e5bc 100644
--- a/media/libaaudio/src/binding/AAudioServiceInterface.h
+++ b/media/libaaudio/src/binding/AAudioServiceInterface.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
-#define AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
+#ifndef ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
+#define ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
 
 #include "binding/AAudioServiceDefinitions.h"
 #include "binding/AAudioStreamRequest.h"
@@ -87,4 +87,4 @@
 
 } /* namespace aaudio */
 
-#endif //AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
+#endif //ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
diff --git a/media/libaaudio/src/binding/AAudioServiceMessage.h b/media/libaaudio/src/binding/AAudioServiceMessage.h
index d75aa32..b4377fb 100644
--- a/media/libaaudio/src/binding/AAudioServiceMessage.h
+++ b/media/libaaudio/src/binding/AAudioServiceMessage.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_AAUDIO_SERVICE_MESSAGE_H
-#define AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+#ifndef ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+#define ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
 
 #include <stdint.h>
 
@@ -64,4 +64,4 @@
 
 } /* namespace aaudio */
 
-#endif //AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+#endif //ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.h b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
index 78c4983..b1e4a7d 100644
--- a/media/libaaudio/src/binding/AAudioStreamConfiguration.h
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_AAUDIO_STREAM_CONFIGURATION_H
-#define BINDING_AAUDIO_STREAM_CONFIGURATION_H
+#ifndef ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
+#define ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
 
 #include <stdint.h>
 
@@ -101,4 +101,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_AAUDIO_STREAM_CONFIGURATION_H
+#endif //ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
diff --git a/media/libaaudio/src/binding/AAudioStreamRequest.h b/media/libaaudio/src/binding/AAudioStreamRequest.h
index d4bfbe1..77138da 100644
--- a/media/libaaudio/src/binding/AAudioStreamRequest.h
+++ b/media/libaaudio/src/binding/AAudioStreamRequest.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_AAUDIO_STREAM_REQUEST_H
-#define BINDING_AAUDIO_STREAM_REQUEST_H
+#ifndef ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
+#define ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
 
 #include <stdint.h>
 
@@ -95,4 +95,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_AAUDIO_STREAM_REQUEST_H
+#endif //ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
diff --git a/media/libaaudio/src/binding/AudioEndpointParcelable.h b/media/libaaudio/src/binding/AudioEndpointParcelable.h
index 4a1cb72..993075c 100644
--- a/media/libaaudio/src/binding/AudioEndpointParcelable.h
+++ b/media/libaaudio/src/binding/AudioEndpointParcelable.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_AUDIOENDPOINTPARCELABLE_H
-#define BINDING_AUDIOENDPOINTPARCELABLE_H
+#ifndef ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
+#define ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
 
 #include <stdint.h>
 
@@ -75,4 +75,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_AUDIOENDPOINTPARCELABLE_H
+#endif //ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/IAAudioService.h b/media/libaaudio/src/binding/IAAudioService.h
index 2cee651..44a5e12 100644
--- a/media/libaaudio/src/binding/IAAudioService.h
+++ b/media/libaaudio/src/binding/IAAudioService.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_IAAUDIOSERVICE_H
-#define BINDING_IAAUDIOSERVICE_H
+#ifndef ANDROID_AAUDIO_IAAUDIO_SERVICE_H
+#define ANDROID_AAUDIO_IAAUDIO_SERVICE_H
 
 #include <stdint.h>
 #include <utils/RefBase.h>
@@ -103,4 +103,4 @@
 
 } /* namespace android */
 
-#endif //BINDING_IAAUDIOSERVICE_H
+#endif //ANDROID_AAUDIO_IAAUDIO_SERVICE_H
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.cpp b/media/libaaudio/src/binding/RingBufferParcelable.cpp
index 05451f9..6b74b21 100644
--- a/media/libaaudio/src/binding/RingBufferParcelable.cpp
+++ b/media/libaaudio/src/binding/RingBufferParcelable.cpp
@@ -79,29 +79,49 @@
  * The read and write must be symmetric.
  */
 status_t RingBufferParcelable::writeToParcel(Parcel* parcel) const {
-    parcel->writeInt32(mCapacityInFrames);
+    status_t status = parcel->writeInt32(mCapacityInFrames);
+    if (status != NO_ERROR) goto error;
     if (mCapacityInFrames > 0) {
-        parcel->writeInt32(mBytesPerFrame);
-        parcel->writeInt32(mFramesPerBurst);
-        parcel->writeInt32(mFlags);
-        mReadCounterParcelable.writeToParcel(parcel);
-        mWriteCounterParcelable.writeToParcel(parcel);
-        mDataParcelable.writeToParcel(parcel);
+        status = parcel->writeInt32(mBytesPerFrame);
+        if (status != NO_ERROR) goto error;
+        status = parcel->writeInt32(mFramesPerBurst);
+        if (status != NO_ERROR) goto error;
+        status = parcel->writeInt32(mFlags);
+        if (status != NO_ERROR) goto error;
+        status = mReadCounterParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mWriteCounterParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mDataParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
     }
-    return NO_ERROR; // TODO check for errors above
+    return NO_ERROR;
+error:
+    ALOGE("RingBufferParcelable::writeToParcel() error = %d", status);
+    return status;
 }
 
 status_t RingBufferParcelable::readFromParcel(const Parcel* parcel) {
-    parcel->readInt32(&mCapacityInFrames);
+    status_t status = parcel->readInt32(&mCapacityInFrames);
+    if (status != NO_ERROR) goto error;
     if (mCapacityInFrames > 0) {
-        parcel->readInt32(&mBytesPerFrame);
-        parcel->readInt32(&mFramesPerBurst);
-        parcel->readInt32((int32_t *)&mFlags);
-        mReadCounterParcelable.readFromParcel(parcel);
-        mWriteCounterParcelable.readFromParcel(parcel);
-        mDataParcelable.readFromParcel(parcel);
+        status = parcel->readInt32(&mBytesPerFrame);
+        if (status != NO_ERROR) goto error;
+        status = parcel->readInt32(&mFramesPerBurst);
+        if (status != NO_ERROR) goto error;
+        status = parcel->readInt32((int32_t *)&mFlags);
+        if (status != NO_ERROR) goto error;
+        status = mReadCounterParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mWriteCounterParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mDataParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
     }
-    return NO_ERROR; // TODO check for errors above
+    return NO_ERROR;
+error:
+    ALOGE("RingBufferParcelable::readFromParcel() error = %d", status);
+    return status;
 }
 
 aaudio_result_t RingBufferParcelable::resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor) {
@@ -141,7 +161,7 @@
         ALOGE("RingBufferParcelable invalid mBytesPerFrame = %d", mBytesPerFrame);
         return AAUDIO_ERROR_INTERNAL;
     }
-    if (mFramesPerBurst < 0 || mFramesPerBurst >= 1024) {
+    if (mFramesPerBurst < 0 || mFramesPerBurst >= 16 * 1024) {
         ALOGE("RingBufferParcelable invalid mFramesPerBurst = %d", mFramesPerBurst);
         return AAUDIO_ERROR_INTERNAL;
     }
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.h b/media/libaaudio/src/binding/RingBufferParcelable.h
index 5fc5d00..bd562f2 100644
--- a/media/libaaudio/src/binding/RingBufferParcelable.h
+++ b/media/libaaudio/src/binding/RingBufferParcelable.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_RINGBUFFER_PARCELABLE_H
-#define BINDING_RINGBUFFER_PARCELABLE_H
+#ifndef ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
+#define ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
 
 #include <stdint.h>
 
@@ -82,4 +82,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_RINGBUFFER_PARCELABLE_H
+#endif //ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedMemoryParcelable.h b/media/libaaudio/src/binding/SharedMemoryParcelable.h
index 64fb473..4b94b46 100644
--- a/media/libaaudio/src/binding/SharedMemoryParcelable.h
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_SHAREDMEMORYPARCELABLE_H
-#define BINDING_SHAREDMEMORYPARCELABLE_H
+#ifndef ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
+#define ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
 
 #include <stdint.h>
 
@@ -75,4 +75,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_SHAREDMEMORYPARCELABLE_H
+#endif //ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedRegionParcelable.h b/media/libaaudio/src/binding/SharedRegionParcelable.h
index e9f5785..f6babfd 100644
--- a/media/libaaudio/src/binding/SharedRegionParcelable.h
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef BINDING_SHAREDREGIONPARCELABLE_H
-#define BINDING_SHAREDREGIONPARCELABLE_H
+#ifndef ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
+#define ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
 
 #include <stdint.h>
 
@@ -59,4 +59,4 @@
 
 } /* namespace aaudio */
 
-#endif //BINDING_SHAREDREGIONPARCELABLE_H
+#endif //ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
diff --git a/media/libaaudio/src/client/AudioEndpoint.cpp b/media/libaaudio/src/client/AudioEndpoint.cpp
index 6f87df6..027d66d 100644
--- a/media/libaaudio/src/client/AudioEndpoint.cpp
+++ b/media/libaaudio/src/client/AudioEndpoint.cpp
@@ -28,6 +28,9 @@
 using namespace android;
 using namespace aaudio;
 
+#define RIDICULOUSLY_LARGE_BUFFER_CAPACITY   (256 * 1024)
+#define RIDICULOUSLY_LARGE_FRAME_SIZE        4096
+
 AudioEndpoint::AudioEndpoint()
     : mOutputFreeRunning(false)
     , mDataReadCounter(0)
@@ -45,16 +48,22 @@
         ALOGE("AudioEndpoint_validateQueueDescriptor() NULL descriptor");
         return AAUDIO_ERROR_NULL;
     }
-    if (descriptor->capacityInFrames <= 0) {
+
+    if (descriptor->capacityInFrames < 1
+        || descriptor->capacityInFrames > RIDICULOUSLY_LARGE_BUFFER_CAPACITY) {
         ALOGE("AudioEndpoint_validateQueueDescriptor() bad capacityInFrames = %d",
               descriptor->capacityInFrames);
         return AAUDIO_ERROR_OUT_OF_RANGE;
     }
-    if (descriptor->bytesPerFrame <= 1) {
+
+    // Reject extreme values to catch bugs and prevent numeric overflows.
+    if (descriptor->bytesPerFrame < 1
+        || descriptor->bytesPerFrame > RIDICULOUSLY_LARGE_FRAME_SIZE) {
         ALOGE("AudioEndpoint_validateQueueDescriptor() bad bytesPerFrame = %d",
               descriptor->bytesPerFrame);
         return AAUDIO_ERROR_OUT_OF_RANGE;
     }
+
     if (descriptor->dataAddress == nullptr) {
         ALOGE("AudioEndpoint_validateQueueDescriptor() NULL dataAddress");
         return AAUDIO_ERROR_NULL;
@@ -82,6 +91,7 @@
         *descriptor->readCounterAddress = counter;
         ALOGV("AudioEndpoint_validateQueueDescriptor() wrote readCounterAddress successfully");
     }
+
     if (descriptor->writeCounterAddress) {
         fifo_counter_t counter = *descriptor->writeCounterAddress;
         ALOGV("AudioEndpoint_validateQueueDescriptor() *writeCounterAddress = %d, now write",
@@ -89,6 +99,7 @@
         *descriptor->writeCounterAddress = counter;
         ALOGV("AudioEndpoint_validateQueueDescriptor() wrote writeCounterAddress successfully");
     }
+
     return AAUDIO_OK;
 }
 
@@ -104,7 +115,6 @@
 
 aaudio_result_t AudioEndpoint::configure(const EndpointDescriptor *pEndpointDescriptor)
 {
-    // TODO maybe remove after debugging
     aaudio_result_t result = AudioEndpoint_validateDescriptor(pEndpointDescriptor);
     if (result != AAUDIO_OK) {
         ALOGE("AudioEndpoint_validateQueueDescriptor returned %d %s",
@@ -112,10 +122,19 @@
         return result;
     }
 
+    // ============================ up message queue =============================
     const RingBufferDescriptor *descriptor = &pEndpointDescriptor->upMessageQueueDescriptor;
-    assert(descriptor->bytesPerFrame == sizeof(AAudioServiceMessage));
-    assert(descriptor->readCounterAddress != nullptr);
-    assert(descriptor->writeCounterAddress != nullptr);
+    if(descriptor->bytesPerFrame != sizeof(AAudioServiceMessage)) {
+        ALOGE("AudioEndpoint::configure() bytesPerFrame != sizeof(AAudioServiceMessage) = %d",
+              descriptor->bytesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if(descriptor->readCounterAddress == nullptr || descriptor->writeCounterAddress == nullptr) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() NULL counter address");
+        return AAUDIO_ERROR_NULL;
+    }
+
     mUpCommandQueue = new FifoBuffer(
             descriptor->bytesPerFrame,
             descriptor->capacityInFrames,
@@ -123,25 +142,9 @@
             descriptor->writeCounterAddress,
             descriptor->dataAddress
     );
-    /* TODO mDownCommandQueue
-    if (descriptor->capacityInFrames > 0) {
-        descriptor = &pEndpointDescriptor->downMessageQueueDescriptor;
-        mDownCommandQueue = new FifoBuffer(
-                descriptor->capacityInFrames,
-                descriptor->bytesPerFrame,
-                descriptor->readCounterAddress,
-                descriptor->writeCounterAddress,
-                descriptor->dataAddress
-        );
-    }
-     */
+
+    // ============================ down data queue =============================
     descriptor = &pEndpointDescriptor->downDataQueueDescriptor;
-    assert(descriptor->capacityInFrames > 0);
-    assert(descriptor->bytesPerFrame > 1);
-    assert(descriptor->bytesPerFrame < 4 * 16); // FIXME just for initial debugging
-    assert(descriptor->framesPerBurst > 0);
-    assert(descriptor->framesPerBurst < 8 * 1024); // FIXME just for initial debugging
-    assert(descriptor->dataAddress != nullptr);
     ALOGV("AudioEndpoint::configure() data framesPerBurst = %d", descriptor->framesPerBurst);
     ALOGV("AudioEndpoint::configure() data readCounterAddress = %p", descriptor->readCounterAddress);
     mOutputFreeRunning = descriptor->readCounterAddress == nullptr;
@@ -172,8 +175,6 @@
 
 aaudio_result_t AudioEndpoint::writeDataNow(const void *buffer, int32_t numFrames)
 {
-    // TODO Make it easier for the AAudioStreamInternal to scale floats and write shorts
-    // TODO Similar to block adapter write through technique. Add a DataConverter.
     return mDownDataQueue->write(buffer, numFrames);
 }
 
diff --git a/media/libaaudio/src/client/AudioEndpoint.h b/media/libaaudio/src/client/AudioEndpoint.h
index a24a705..46a3fc5 100644
--- a/media/libaaudio/src/client/AudioEndpoint.h
+++ b/media/libaaudio/src/client/AudioEndpoint.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_AUDIO_ENDPOINT_H
-#define AAUDIO_AUDIO_ENDPOINT_H
+#ifndef ANDROID_AAUDIO_AUDIO_ENDPOINT_H
+#define ANDROID_AAUDIO_AUDIO_ENDPOINT_H
 
 #include <aaudio/AAudio.h>
 
@@ -93,4 +93,4 @@
 
 } // namespace aaudio
 
-#endif //AAUDIO_AUDIO_ENDPOINT_H
+#endif //ANDROID_AAUDIO_AUDIO_ENDPOINT_H
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
index 5214db8..eee860e 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -244,7 +244,7 @@
 
     ALOGD("AudioStreamInternal(): callbackLoop() exiting, result = %d, isPlaying() = %d",
           result, (int) isPlaying());
-    return NULL; // TODO review
+    return NULL;
 }
 
 static void *aaudio_callback_thread_proc(void *context)
@@ -402,7 +402,7 @@
 aaudio_result_t AudioStreamInternal::getTimestamp(clockid_t clockId,
                            int64_t *framePosition,
                            int64_t *timeNanoseconds) {
-    // TODO implement using real HAL
+    // TODO Generate in server and pass to client. Return latest.
     int64_t time = AudioClock::getNanoseconds();
     *framePosition = mClockModel.convertTimeToPosition(time);
     *timeNanoseconds = time + (10 * AAUDIO_NANOS_PER_MILLISECOND); // Fake hardware delay
@@ -574,12 +574,9 @@
 // Write as much data as we can without blocking.
 aaudio_result_t AudioStreamInternal::writeNow(const void *buffer, int32_t numFrames,
                                          int64_t currentNanoTime, int64_t *wakeTimePtr) {
-
-    {
-        aaudio_result_t result = processCommands();
-        if (result != AAUDIO_OK) {
-            return result;
-        }
+    aaudio_result_t result = processCommands();
+    if (result != AAUDIO_OK) {
+        return result;
     }
 
     if (mAudioEndpoint.isOutputFreeRunning()) {
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
index a43f6c5..ee602c1 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.h
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_AUDIOSTREAMINTERNAL_H
-#define AAUDIO_AUDIOSTREAMINTERNAL_H
+#ifndef ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
+#define ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
 
 #include <stdint.h>
 #include <aaudio/AAudio.h>
@@ -49,15 +49,11 @@
 
     aaudio_result_t requestStop() override;
 
-    // TODO use aaudio_clockid_t all the way down to AudioClock
     aaudio_result_t getTimestamp(clockid_t clockId,
                                        int64_t *framePosition,
                                        int64_t *timeNanoseconds) override;
 
-
-
     virtual aaudio_result_t updateStateWhileWaiting() override;
-
     // =========== End ABSTRACT methods ===========================
 
     aaudio_result_t open(const AudioStreamBuilder &builder) override;
@@ -170,4 +166,4 @@
 
 } /* namespace aaudio */
 
-#endif //AAUDIO_AUDIOSTREAMINTERNAL_H
+#endif //ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
diff --git a/media/libaaudio/src/client/IsochronousClockModel.h b/media/libaaudio/src/client/IsochronousClockModel.h
index 205c341..0314f55 100644
--- a/media/libaaudio/src/client/IsochronousClockModel.h
+++ b/media/libaaudio/src/client/IsochronousClockModel.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
-#define AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
+#ifndef ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
+#define ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
 
 #include <stdint.h>
 
@@ -106,4 +106,4 @@
 
 } /* namespace aaudio */
 
-#endif //AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
+#endif //ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
index c3cf27f..d1698bf 100644
--- a/media/libaaudio/src/core/AudioStream.cpp
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -66,6 +66,18 @@
         ALOGE("AudioStream::open(): samplesPerFrame out of range = %d", mSamplesPerFrame);
         return AAUDIO_ERROR_OUT_OF_RANGE;
     }
+
+    switch(mFormat) {
+        case AAUDIO_FORMAT_UNSPECIFIED:
+        case AAUDIO_FORMAT_PCM_I16:
+        case AAUDIO_FORMAT_PCM_FLOAT:
+            break; // valid
+        default:
+            ALOGE("AudioStream::open(): audioFormat not valid = %d", mFormat);
+            return AAUDIO_ERROR_INVALID_FORMAT;
+            // break;
+    }
+
     if (mSampleRate < 0 || mSampleRate > 1000000) {
         ALOGE("AudioStream::open(): mSampleRate out of range = %d", mSampleRate);
         return AAUDIO_ERROR_INVALID_RATE;
@@ -101,7 +113,6 @@
         return result;
     }
 
-    // TODO replace this when similar functionality added to AudioTrack.cpp
     int64_t durationNanos = 20 * AAUDIO_NANOS_PER_MILLISECOND; // arbitrary
     aaudio_stream_state_t state = getState();
     while (state == currentState && timeoutNanoseconds > 0) {
@@ -145,6 +156,8 @@
     return audioStream->wrapUserThread();
 }
 
+// This is not exposed in the API.
+// But it is still used internally to implement callbacks for MMAP mode.
 aaudio_result_t AudioStream::createThread(int64_t periodNanoseconds,
                                      aaudio_audio_thread_proc_t threadProc,
                                      void* threadArg)
@@ -161,8 +174,7 @@
     setPeriodNanoseconds(periodNanoseconds);
     int err = pthread_create(&mThread, nullptr, AudioStream_internalThreadProc, this);
     if (err != 0) {
-        // TODO convert errno to aaudio_result_t
-        return AAUDIO_ERROR_INTERNAL;
+        return AAudioConvert_androidToAAudioResult(-errno);
     } else {
         mHasThread = true;
         return AAUDIO_OK;
@@ -182,7 +194,6 @@
     int err = pthread_join(mThread, returnArg);
 #endif
     mHasThread = false;
-    // TODO convert errno to aaudio_result_t
-    return err ? AAUDIO_ERROR_INTERNAL : mThreadRegistrationResult;
+    return err ? AAudioConvert_androidToAAudioResult(-errno) : mThreadRegistrationResult;
 }
 
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
index 59d754a..f89234a 100644
--- a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
@@ -108,3 +108,24 @@
             break;
     }
 }
+
+aaudio_result_t AudioStreamLegacy::getBestTimestamp(clockid_t clockId,
+                                                   int64_t *framePosition,
+                                                   int64_t *timeNanoseconds,
+                                                   ExtendedTimestamp *extendedTimestamp) {
+    int timebase;
+    switch (clockId) {
+        case CLOCK_BOOTTIME:
+            timebase = ExtendedTimestamp::TIMEBASE_BOOTTIME;
+            break;
+        case CLOCK_MONOTONIC:
+            timebase = ExtendedTimestamp::TIMEBASE_MONOTONIC;
+            break;
+        default:
+            ALOGE("getTimestamp() - Unrecognized clock type %d", (int) clockId);
+            return AAUDIO_ERROR_UNEXPECTED_VALUE;
+            break;
+    }
+    status_t status = extendedTimestamp->getBestTimestamp(framePosition, timeNanoseconds, timebase);
+    return AAudioConvert_androidToAAudioResult(status);
+}
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.h b/media/libaaudio/src/legacy/AudioStreamLegacy.h
index d5a3ede..38f1a56 100644
--- a/media/libaaudio/src/legacy/AudioStreamLegacy.h
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.h
@@ -17,6 +17,7 @@
 #ifndef LEGACY_AUDIO_STREAM_LEGACY_H
 #define LEGACY_AUDIO_STREAM_LEGACY_H
 
+#include <media/AudioTimestamp.h>
 
 #include <aaudio/AAudio.h>
 
@@ -73,6 +74,12 @@
     virtual int64_t incrementClientFrameCounter(int32_t frames)  = 0;
 
 protected:
+
+    aaudio_result_t getBestTimestamp(clockid_t clockId,
+                                     int64_t *framePosition,
+                                     int64_t *timeNanoseconds,
+                                     android::ExtendedTimestamp *extendedTimestamp);
+
     FixedBlockAdapter         *mBlockAdapter = nullptr;
     aaudio_wrapping_frames_t   mPositionWhenStarting = 0;
     int32_t                    mCallbackBufferSize = 0;
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 918f5dd..eb6bfd5 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -278,20 +278,5 @@
     if (status != NO_ERROR) {
         return AAudioConvert_androidToAAudioResult(status);
     }
-    // TODO Merge common code into AudioStreamLegacy after rebasing.
-    int timebase;
-    switch(clockId) {
-        case CLOCK_BOOTTIME:
-            timebase = ExtendedTimestamp::TIMEBASE_BOOTTIME;
-            break;
-        case CLOCK_MONOTONIC:
-            timebase = ExtendedTimestamp::TIMEBASE_MONOTONIC;
-            break;
-        default:
-            ALOGE("getTimestamp() - Unrecognized clock type %d", (int) clockId);
-            return AAUDIO_ERROR_UNEXPECTED_VALUE;
-            break;
-    }
-    status = extendedTimestamp.getBestTimestamp(framePosition, timeNanoseconds, timebase);
-    return AAudioConvert_androidToAAudioResult(status);
+    return getBestTimestamp(clockId, framePosition, timeNanoseconds, &extendedTimestamp);
 }
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
index b4b1c04..a7c7673 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -61,7 +61,7 @@
     ALOGD("AudioStreamTrack::open = %p", this);
 
     // Try to create an AudioTrack
-    // TODO Support UNSPECIFIED in AudioTrack. For now, use stereo if unspecified.
+    // Use stereo if unspecified.
     int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
                               ? 2 : getSamplesPerFrame();
     audio_channel_mask_t channelMask = audio_channel_out_mask_from_count(samplesPerFrame);
@@ -163,9 +163,8 @@
 
 aaudio_result_t AudioStreamTrack::close()
 {
-    // TODO maybe add close() or release() to AudioTrack API then call it from here
     if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
-        mAudioTrack.clear(); // TODO is this right?
+        mAudioTrack.clear();
         setState(AAUDIO_STREAM_STATE_CLOSED);
     }
     mFixedBlockReader.close();
@@ -290,7 +289,7 @@
             if (err != OK) {
                 return AAudioConvert_androidToAAudioResult(err);
             } else if (position == 0) {
-                // Advance frames read to match written.
+                // TODO Advance frames read to match written.
                 setState(AAUDIO_STREAM_STATE_FLUSHED);
             }
         }
@@ -389,20 +388,5 @@
     if (status != NO_ERROR) {
         return AAudioConvert_androidToAAudioResult(status);
     }
-    // TODO Merge common code into AudioStreamLegacy after rebasing.
-    int timebase;
-    switch (clockId) {
-        case CLOCK_BOOTTIME:
-            timebase = ExtendedTimestamp::TIMEBASE_BOOTTIME;
-            break;
-        case CLOCK_MONOTONIC:
-            timebase = ExtendedTimestamp::TIMEBASE_MONOTONIC;
-            break;
-        default:
-            ALOGE("getTimestamp() - Unrecognized clock type %d", (int) clockId);
-            return AAUDIO_ERROR_UNEXPECTED_VALUE;
-            break;
-    }
-    status = extendedTimestamp.getBestTimestamp(framePosition, timeNanoseconds, timebase);
-    return AAudioConvert_androidToAAudioResult(status);
+    return getBestTimestamp(clockId, framePosition, timeNanoseconds, &extendedTimestamp);
 }
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index 5fa228a..be2bd10 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -48,7 +48,7 @@
 }
 
 
-// TODO call clamp16_from_float function in primitives.h
+// TODO expose and call clamp16_from_float function in primitives.h
 static inline int16_t clamp16_from_float(float f) {
     /* Offset is used to expand the valid range of [-1.0, 1.0) into the 16 lsbs of the
      * floating point significand. The normal shift is 3<<22, but the -15 offset
@@ -209,18 +209,32 @@
         status = DEAD_OBJECT;
         break;
     case AAUDIO_ERROR_INVALID_STATE:
+    case AAUDIO_ERROR_UNEXPECTED_STATE:
         status = INVALID_OPERATION;
         break;
-    case AAUDIO_ERROR_UNEXPECTED_VALUE: // TODO redundant?
+    case AAUDIO_ERROR_UNEXPECTED_VALUE:
     case AAUDIO_ERROR_INVALID_RATE:
     case AAUDIO_ERROR_INVALID_FORMAT:
     case AAUDIO_ERROR_ILLEGAL_ARGUMENT:
+    case AAUDIO_ERROR_OUT_OF_RANGE:
         status = BAD_VALUE;
         break;
     case AAUDIO_ERROR_WOULD_BLOCK:
         status = WOULD_BLOCK;
         break;
-    // TODO add more result codes
+    case AAUDIO_ERROR_NULL:
+        status = UNEXPECTED_NULL;
+        break;
+    // TODO translate these result codes
+    case AAUDIO_ERROR_INCOMPATIBLE:
+    case AAUDIO_ERROR_INTERNAL:
+    case AAUDIO_ERROR_INVALID_QUERY:
+    case AAUDIO_ERROR_UNIMPLEMENTED:
+    case AAUDIO_ERROR_UNAVAILABLE:
+    case AAUDIO_ERROR_NO_FREE_HANDLES:
+    case AAUDIO_ERROR_NO_MEMORY:
+    case AAUDIO_ERROR_TIMEOUT:
+    case AAUDIO_ERROR_NO_SERVICE:
     default:
         status = UNKNOWN_ERROR;
         break;
@@ -244,13 +258,15 @@
     case INVALID_OPERATION:
         result = AAUDIO_ERROR_INVALID_STATE;
         break;
-    case BAD_VALUE:
-        result = AAUDIO_ERROR_UNEXPECTED_VALUE;
-        break;
+        case UNEXPECTED_NULL:
+            result = AAUDIO_ERROR_NULL;
+            break;
+        case BAD_VALUE:
+            result = AAUDIO_ERROR_UNEXPECTED_VALUE;
+            break;
     case WOULD_BLOCK:
         result = AAUDIO_ERROR_WOULD_BLOCK;
         break;
-    // TODO add more status codes
     default:
         result = AAUDIO_ERROR_INTERNAL;
         break;
diff --git a/media/libaaudio/src/utility/FixedBlockAdapter.cpp b/media/libaaudio/src/utility/FixedBlockAdapter.cpp
index f4666af..63495f0 100644
--- a/media/libaaudio/src/utility/FixedBlockAdapter.cpp
+++ b/media/libaaudio/src/utility/FixedBlockAdapter.cpp
@@ -25,7 +25,7 @@
 int32_t FixedBlockAdapter::open(int32_t bytesPerFixedBlock)
 {
     mSize = bytesPerFixedBlock;
-    mStorage = new uint8_t[bytesPerFixedBlock]; // TODO use std::nothrow
+    mStorage = new uint8_t[bytesPerFixedBlock];
     mPosition = 0;
     return 0;
 }
diff --git a/media/libmediametrics/include/MediaAnalyticsItem.h b/media/libmediametrics/include/MediaAnalyticsItem.h
index f050e7f..dc501b2 100644
--- a/media/libmediametrics/include/MediaAnalyticsItem.h
+++ b/media/libmediametrics/include/MediaAnalyticsItem.h
@@ -41,6 +41,7 @@
     friend class MediaAnalyticsService;
     friend class IMediaAnalyticsService;
     friend class MediaMetricsJNI;
+    friend class MetricsSummarizer;
 
     public:
 
@@ -231,7 +232,6 @@
         size_t mPropCount;
         size_t mPropSize;
         Prop *mProps;
-
 };
 
 } // namespace android
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 7079ff2..18fd857 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -275,20 +275,6 @@
     ALOGV("MediaPlayerService created");
     mNextConnId = 1;
 
-    mBatteryAudio.refCount = 0;
-    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
-        mBatteryAudio.deviceOn[i] = 0;
-        mBatteryAudio.lastTime[i] = 0;
-        mBatteryAudio.totalTime[i] = 0;
-    }
-    // speaker is on by default
-    mBatteryAudio.deviceOn[SPEAKER] = 1;
-
-    // reset battery stats
-    // if the mediaserver has crashed, battery stats could be left
-    // in bad state, reset the state upon service start.
-    BatteryNotifier::getInstance().noteResetVideo();
-
     MediaPlayerFactory::registerBuiltinFactories();
 }
 
@@ -2486,7 +2472,31 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-void MediaPlayerService::addBatteryData(uint32_t params)
+void MediaPlayerService::addBatteryData(uint32_t params) {
+    mBatteryTracker.addBatteryData(params);
+}
+
+status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
+    return mBatteryTracker.pullBatteryData(reply);
+}
+
+MediaPlayerService::BatteryTracker::BatteryTracker() {
+    mBatteryAudio.refCount = 0;
+    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
+        mBatteryAudio.deviceOn[i] = 0;
+        mBatteryAudio.lastTime[i] = 0;
+        mBatteryAudio.totalTime[i] = 0;
+    }
+    // speaker is on by default
+    mBatteryAudio.deviceOn[SPEAKER] = 1;
+
+    // reset battery stats
+    // if the mediaserver has crashed, battery stats could be left
+    // in bad state, reset the state upon service start.
+    BatteryNotifier::getInstance().noteResetVideo();
+}
+
+void MediaPlayerService::BatteryTracker::addBatteryData(uint32_t params)
 {
     Mutex::Autolock lock(mLock);
 
@@ -2626,7 +2636,7 @@
     }
 }
 
-status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
+status_t MediaPlayerService::BatteryTracker::pullBatteryData(Parcel* reply) {
     Mutex::Autolock lock(mLock);
 
     // audio output devices usage
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 009fe73..06b9cad 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -246,51 +246,62 @@
         CAMERA_PROCESS_DEATH = 4
     };
 
-    // For battery usage tracking purpose
-    struct BatteryUsageInfo {
-        // how many streams are being played by one UID
-        int     refCount;
-        // a temp variable to store the duration(ms) of audio codecs
-        // when we start a audio codec, we minus the system time from audioLastTime
-        // when we pause it, we add the system time back to the audioLastTime
-        // so after the pause, audioLastTime = pause time - start time
-        // if multiple audio streams are played (or recorded), then audioLastTime
-        // = the total playing time of all the streams
-        int32_t audioLastTime;
-        // when all the audio streams are being paused, we assign audioLastTime to
-        // this variable, so this value could be provided to the battery app
-        // in the next pullBatteryData call
-        int32_t audioTotalTime;
-
-        int32_t videoLastTime;
-        int32_t videoTotalTime;
-    };
-    KeyedVector<int, BatteryUsageInfo>    mBatteryData;
-
-    enum {
-        SPEAKER,
-        OTHER_AUDIO_DEVICE,
-        SPEAKER_AND_OTHER,
-        NUM_AUDIO_DEVICES
-    };
-
-    struct BatteryAudioFlingerUsageInfo {
-        int refCount; // how many audio streams are being played
-        int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used
-        int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms
-        // totalTime[]: total time of audio output devices usage
-        int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms
-    };
-
-    // This varialble is used to record the usage of audio output device
-    // for battery app
-    BatteryAudioFlingerUsageInfo mBatteryAudio;
-
     // Collect info of the codec usage from media player and media recorder
     virtual void                addBatteryData(uint32_t params);
     // API for the Battery app to pull the data of codecs usage
     virtual status_t            pullBatteryData(Parcel* reply);
 private:
+    struct BatteryTracker {
+        BatteryTracker();
+        // Collect info of the codec usage from media player and media recorder
+        void addBatteryData(uint32_t params);
+        // API for the Battery app to pull the data of codecs usage
+        status_t pullBatteryData(Parcel* reply);
+
+    private:
+        // For battery usage tracking purpose
+        struct BatteryUsageInfo {
+            // how many streams are being played by one UID
+            int     refCount;
+            // a temp variable to store the duration(ms) of audio codecs
+            // when we start a audio codec, we minus the system time from audioLastTime
+            // when we pause it, we add the system time back to the audioLastTime
+            // so after the pause, audioLastTime = pause time - start time
+            // if multiple audio streams are played (or recorded), then audioLastTime
+            // = the total playing time of all the streams
+            int32_t audioLastTime;
+            // when all the audio streams are being paused, we assign audioLastTime to
+            // this variable, so this value could be provided to the battery app
+            // in the next pullBatteryData call
+            int32_t audioTotalTime;
+
+            int32_t videoLastTime;
+            int32_t videoTotalTime;
+        };
+        KeyedVector<int, BatteryUsageInfo>    mBatteryData;
+
+        enum {
+            SPEAKER,
+            OTHER_AUDIO_DEVICE,
+            SPEAKER_AND_OTHER,
+            NUM_AUDIO_DEVICES
+        };
+
+        struct BatteryAudioFlingerUsageInfo {
+            int refCount; // how many audio streams are being played
+            int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used
+            int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms
+            // totalTime[]: total time of audio output devices usage
+            int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms
+        };
+
+        // This varialble is used to record the usage of audio output device
+        // for battery app
+        BatteryAudioFlingerUsageInfo mBatteryAudio;
+
+        mutable Mutex mLock;
+    };
+    BatteryTracker mBatteryTracker;
 
     class Client : public BnMediaPlayer {
         // IMediaPlayer interface
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index cafedba..4f18a26 100755
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -72,8 +72,10 @@
 static const int64_t kMaxMetadataSize = 0x4000000LL;   // 64MB max per-frame metadata size
 
 static const char kMetaKey_Version[]    = "com.android.version";
-#ifdef SHOW_MODEL_BUILD
+static const char kMetaKey_Manufacturer[]      = "com.android.manufacturer";
 static const char kMetaKey_Model[]      = "com.android.model";
+
+#ifdef SHOW_BUILD
 static const char kMetaKey_Build[]      = "com.android.build";
 #endif
 static const char kMetaKey_CaptureFps[] = "com.android.capture.fps";
@@ -93,7 +95,7 @@
     kHevcNalUnitTypePrefixSei,
     kHevcNalUnitTypeSuffixSei,
 };
-/* uncomment to include model and build in meta */
+/* uncomment to include build in meta */
 //#define SHOW_MODEL_BUILD 1
 
 class MPEG4Writer::Track {
@@ -611,12 +613,20 @@
         mMetaKeys->setString(kMetaKey_Version, val, n + 1);
         mMoovExtraSize += sizeof(kMetaKey_Version) + n + 32;
     }
-#ifdef SHOW_MODEL_BUILD
-    if (property_get("ro.product.model", val, NULL)
-            && (n = strlen(val)) > 0) {
-        mMetaKeys->setString(kMetaKey_Model, val, n + 1);
-        mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32;
+
+    if (property_get_bool("media.recorder.show_manufacturer_and_model", false)) {
+        if (property_get("ro.product.manufacturer", val, NULL)
+                && (n = strlen(val)) > 0) {
+            mMetaKeys->setString(kMetaKey_Manufacturer, val, n + 1);
+            mMoovExtraSize += sizeof(kMetaKey_Manufacturer) + n + 32;
+        }
+        if (property_get("ro.product.model", val, NULL)
+                && (n = strlen(val)) > 0) {
+            mMetaKeys->setString(kMetaKey_Model, val, n + 1);
+            mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32;
+        }
     }
+#ifdef SHOW_MODEL_BUILD
     if (property_get("ro.build.display.id", val, NULL)
             && (n = strlen(val)) > 0) {
         mMetaKeys->setString(kMetaKey_Build, val, n + 1);
diff --git a/media/libstagefright/omx/1.0/Omx.cpp b/media/libstagefright/omx/1.0/Omx.cpp
index 365ea5d..64b2c08 100644
--- a/media/libstagefright/omx/1.0/Omx.cpp
+++ b/media/libstagefright/omx/1.0/Omx.cpp
@@ -180,26 +180,22 @@
         return OK;
     }
 
-    wp<IBase> observer;
     {
         Mutex::Autolock autoLock(mLock);
         ssize_t observerIndex = mNode2Observer.indexOfKey(instance.get());
-        if (observerIndex < 0) {
-            return OK;
-        }
-        observer = mNode2Observer.valueAt(observerIndex);
-        ssize_t nodeIndex = mLiveNodes.indexOfKey(observer);
-        if (nodeIndex < 0) {
-            return OK;
-        }
-        mNode2Observer.removeItemsAt(observerIndex);
-        mLiveNodes.removeItemsAt(nodeIndex);
-    }
-
-    {
-        sp<IBase> sObserver = observer.promote();
-        if (sObserver != nullptr) {
-            sObserver->unlinkToDeath(this);
+        if (observerIndex >= 0) {
+            wp<IBase> observer = mNode2Observer.valueAt(observerIndex);
+            ssize_t nodeIndex = mLiveNodes.indexOfKey(observer);
+            if (nodeIndex >= 0) {
+                mNode2Observer.removeItemsAt(observerIndex);
+                mLiveNodes.removeItemsAt(nodeIndex);
+                sp<IBase> sObserver = observer.promote();
+                if (sObserver != nullptr) {
+                    sObserver->unlinkToDeath(this);
+                }
+            } else {
+                LOG(WARNING) << "Inconsistent observer record";
+            }
         }
     }
 
diff --git a/services/camera/libcameraservice/CameraFlashlight.cpp b/services/camera/libcameraservice/CameraFlashlight.cpp
index 836972a..e06a81f 100644
--- a/services/camera/libcameraservice/CameraFlashlight.cpp
+++ b/services/camera/libcameraservice/CameraFlashlight.cpp
@@ -93,10 +93,6 @@
     }
 
     if (mFlashControl == NULL) {
-        if (enabled == false) {
-            return OK;
-        }
-
         res = createFlashlightControl(cameraId);
         if (res) {
             return res;
@@ -139,10 +135,14 @@
         cameraIds[i] = String8(ids[i].c_str());
     }
 
-    mHasFlashlightMap.clear();
-    mFlashlightMapInitialized = false;
+    mFlashControl.clear();
 
     for (auto &id : cameraIds) {
+        ssize_t index = mHasFlashlightMap.indexOfKey(id);
+        if (0 <= index) {
+            continue;
+        }
+
         bool hasFlash = false;
         res = createFlashlightControl(id);
         if (res) {
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 0031441..415fdf5 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -198,13 +198,17 @@
 }
 
 status_t CameraService::enumerateProviders() {
-    mCameraProviderManager = new CameraProviderManager();
     status_t res;
-    res = mCameraProviderManager->initialize(this);
-    if (res != OK) {
-        ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        return res;
+    Mutex::Autolock l(mServiceLock);
+
+    if (nullptr == mCameraProviderManager.get()) {
+        mCameraProviderManager = new CameraProviderManager();
+        res = mCameraProviderManager->initialize(this);
+        if (res != OK) {
+            ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
+                    __FUNCTION__, strerror(-res), res);
+            return res;
+        }
     }
 
     mNumberOfCameras = mCameraProviderManager->getCameraCount();
@@ -216,15 +220,25 @@
     // TODO: maybe put this into CameraProviderManager::initialize()?
     mCameraProviderManager->setUpVendorTags();
 
-    mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
+    if (nullptr == mFlashlight.get()) {
+        mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
+    }
+
     res = mFlashlight->findFlashUnits();
     if (res != OK) {
         ALOGE("Failed to enumerate flash units: %s (%d)", strerror(-res), res);
     }
 
-    // TODO: Verify device versions are in support
-
     for (auto& cameraId : mCameraProviderManager->getCameraDeviceIds()) {
+        String8 id8 = String8(cameraId.c_str());
+        {
+            Mutex::Autolock lock(mCameraStatesLock);
+            auto iter = mCameraStates.find(id8);
+            if (iter != mCameraStates.end()) {
+                continue;
+            }
+        }
+
         hardware::camera::common::V1_0::CameraResourceCost cost;
         res = mCameraProviderManager->getResourceCost(cameraId, &cost);
         if (res != OK) {
@@ -235,22 +249,19 @@
         for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
             conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
         }
-        String8 id8 = String8(cameraId.c_str());
 
         Mutex::Autolock lock(mCameraStatesLock);
         mCameraStates.emplace(id8,
             std::make_shared<CameraState>(id8, cost.resourceCost, conflicting));
 
         if (mFlashlight->hasFlashUnit(id8)) {
-            mTorchStatusMap.add(id8,
-                TorchModeStatus::AVAILABLE_OFF);
+            mTorchStatusMap.add(id8, TorchModeStatus::AVAILABLE_OFF);
         }
     }
 
     return OK;
 }
 
-
 sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
     sp<ICameraServiceProxy> proxyBinder = nullptr;
 #ifndef __BRILLO__
@@ -276,6 +287,10 @@
     VendorTagDescriptor::clearGlobalVendorTagDescriptor();
 }
 
+void CameraService::onNewProviderRegistered() {
+    enumerateProviders();
+}
+
 void CameraService::onDeviceStatusChanged(const String8& id,
         CameraDeviceStatus newHalStatus) {
     ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
@@ -407,6 +422,7 @@
 
 Status CameraService::getNumberOfCameras(int32_t type, int32_t* numCameras) {
     ATRACE_CALL();
+    Mutex::Autolock l(mServiceLock);
     switch (type) {
         case CAMERA_TYPE_BACKWARD_COMPATIBLE:
             *numCameras = mNumberOfNormalCameras;
@@ -426,6 +442,8 @@
 Status CameraService::getCameraInfo(int cameraId,
         CameraInfo* cameraInfo) {
     ATRACE_CALL();
+    Mutex::Autolock l(mServiceLock);
+
     if (!mInitialized) {
         return STATUS_ERROR(ERROR_DISCONNECTED,
                 "Camera subsystem is not available");
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 7d81993..87603a3 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -99,6 +99,7 @@
             hardware::camera::common::V1_0::CameraDeviceStatus newHalStatus) override;
     virtual void        onTorchStatusChanged(const String8& cameraId,
             hardware::camera::common::V1_0::TorchModeStatus newStatus) override;
+    virtual void        onNewProviderRegistered() override;
 
     /////////////////////////////////////////////////////////////////////
     // ICameraService
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.cpp b/services/camera/libcameraservice/common/CameraProviderManager.cpp
index 38fe1b6..65633db 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.cpp
+++ b/services/camera/libcameraservice/common/CameraProviderManager.cpp
@@ -231,7 +231,6 @@
 status_t CameraProviderManager::setUpVendorTags() {
     sp<VendorTagDescriptorCache> tagCache = new VendorTagDescriptorCache();
 
-    VendorTagDescriptorCache::clearGlobalVendorTagCache();
     for (auto& provider : mProviders) {
         hardware::hidl_vec<VendorTagSection> vts;
         Status status;
@@ -331,9 +330,17 @@
         const hardware::hidl_string& /*fqName*/,
         const hardware::hidl_string& name,
         bool /*preexisting*/) {
-    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    {
+        std::lock_guard<std::mutex> lock(mInterfaceMutex);
 
-    addProviderLocked(name);
+        addProviderLocked(name);
+    }
+
+    sp<StatusListener> listener = getStatusListener();
+    if (nullptr != listener.get()) {
+        listener->onNewProviderRegistered();
+    }
+
     return hardware::Return<void>();
 }
 
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
index 3afc1d9..9ba7f91 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.h
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -106,6 +106,7 @@
                 hardware::camera::common::V1_0::CameraDeviceStatus newStatus) = 0;
         virtual void onTorchStatusChanged(const String8 &cameraId,
                 hardware::camera::common::V1_0::TorchModeStatus newStatus) = 0;
+        virtual void onNewProviderRegistered() = 0;
     };
 
     /**
diff --git a/services/mediaanalytics/Android.mk b/services/mediaanalytics/Android.mk
index f7197af..9e2813e 100644
--- a/services/mediaanalytics/Android.mk
+++ b/services/mediaanalytics/Android.mk
@@ -5,7 +5,12 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-    main_mediametrics.cpp          \
+    main_mediametrics.cpp              \
+    MetricsSummarizerCodec.cpp         \
+    MetricsSummarizerExtractor.cpp     \
+    MetricsSummarizerPlayer.cpp        \
+    MetricsSummarizerRecorder.cpp      \
+    MetricsSummarizer.cpp              \
     MediaAnalyticsService.cpp
 
 LOCAL_SHARED_LIBRARIES := \
diff --git a/services/mediaanalytics/MediaAnalyticsService.cpp b/services/mediaanalytics/MediaAnalyticsService.cpp
index 35c1f5b..876c685 100644
--- a/services/mediaanalytics/MediaAnalyticsService.cpp
+++ b/services/mediaanalytics/MediaAnalyticsService.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 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.
@@ -20,6 +20,7 @@
 #define LOG_TAG "MediaAnalyticsService"
 #include <utils/Log.h>
 
+#include <stdint.h>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -70,11 +71,28 @@
 
 #include "MediaAnalyticsService.h"
 
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerCodec.h"
+#include "MetricsSummarizerExtractor.h"
+#include "MetricsSummarizerPlayer.h"
+#include "MetricsSummarizerRecorder.h"
+
 
 namespace android {
 
 
-#define DEBUG_QUEUE     0
+
+// summarized records
+// up to 48 sets, each covering an hour -- at least 2 days of coverage
+// (will be longer if there are hours without any media action)
+static const nsecs_t kNewSetIntervalNs = 3600*(1000*1000*1000ll);
+static const int kMaxRecordSets = 48;
+// individual records kept in memory
+static const int kMaxRecords    = 100;
+
+
+static const char *kServiceName = "media.metrics";
+
 
 //using android::status_t;
 //using android::OK;
@@ -85,18 +103,67 @@
 
 void MediaAnalyticsService::instantiate() {
     defaultServiceManager()->addService(
-            String16("media.metrics"), new MediaAnalyticsService());
+            String16(kServiceName), new MediaAnalyticsService());
 }
 
-// XXX: add dynamic controls for mMaxRecords
+// handle sets of summarizers
+MediaAnalyticsService::SummarizerSet::SummarizerSet() {
+    mSummarizers = new List<MetricsSummarizer *>();
+}
+MediaAnalyticsService::SummarizerSet::~SummarizerSet() {
+    // empty the list
+    List<MetricsSummarizer *> *l = mSummarizers;
+    while (l->size() > 0) {
+        MetricsSummarizer *summarizer = *(l->begin());
+        l->erase(l->begin());
+        delete summarizer;
+    }
+}
+
+void MediaAnalyticsService::newSummarizerSet() {
+    ALOGD("MediaAnalyticsService::newSummarizerSet");
+    MediaAnalyticsService::SummarizerSet *set = new MediaAnalyticsService::SummarizerSet();
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    set->setStarted(now);
+
+    set->appendSummarizer(new MetricsSummarizerExtractor("extractor"));
+    set->appendSummarizer(new MetricsSummarizerCodec("codec"));
+    set->appendSummarizer(new MetricsSummarizerPlayer("nuplayer"));
+    set->appendSummarizer(new MetricsSummarizerRecorder("recorder"));
+
+    // ALWAYS at the end, since it catches everything
+    set->appendSummarizer(new MetricsSummarizer(NULL));
+
+    // inject this set at the BACK of the list.
+    mSummarizerSets->push_back(set);
+    mCurrentSet = set;
+
+    // limit the # that we have
+    if (mMaxRecordSets > 0) {
+        List<SummarizerSet *> *l = mSummarizerSets;
+        while (l->size() > (size_t) mMaxRecordSets) {
+            ALOGD("Deleting oldest record set....");
+            MediaAnalyticsService::SummarizerSet *oset = *(l->begin());
+            l->erase(l->begin());
+            delete oset;
+            mSetsDiscarded++;
+        }
+    }
+}
+
 MediaAnalyticsService::MediaAnalyticsService()
-        : mMaxRecords(100) {
+        : mMaxRecords(kMaxRecords),
+          mMaxRecordSets(kMaxRecordSets),
+          mNewSetInterval(kNewSetIntervalNs) {
 
     ALOGD("MediaAnalyticsService created");
     // clear our queues
     mOpen = new List<MediaAnalyticsItem *>();
     mFinalized = new List<MediaAnalyticsItem *>();
 
+    mSummarizerSets = new List<MediaAnalyticsService::SummarizerSet *>();
+    newSummarizerSet();
+
     mItemsSubmitted = 0;
     mItemsFinalized = 0;
     mItemsDiscarded = 0;
@@ -109,7 +176,13 @@
 MediaAnalyticsService::~MediaAnalyticsService() {
         ALOGD("MediaAnalyticsService destroyed");
 
-    // XXX: clean out mOpen and mFinalized
+    // clean out mOpen and mFinalized
+    delete mOpen;
+    mOpen = NULL;
+    delete mFinalized;
+    mFinalized = NULL;
+
+    // XXX: clean out the summaries
 }
 
 
@@ -145,7 +218,7 @@
         case AID_MEDIA_EX:
         case AID_MEDIA_DRM:
             // trusted source, only override default values
-            isTrusted = true;
+                isTrusted = true;
             if (uid_given == (-1)) {
                 item->setUid(uid);
             }
@@ -197,10 +270,12 @@
                 oitem = NULL;
             } else {
                 oitem->setFinalized(true);
+                summarize(oitem);
                 saveItem(mFinalized, oitem, 0);
             }
             // new record could itself be marked finalized...
             if (finalizing) {
+                summarize(item);
                 saveItem(mFinalized, item, 0);
                 mItemsFinalized++;
             } else {
@@ -211,6 +286,7 @@
             // combine the records, send it to finalized if appropriate
             oitem->merge(item);
             if (finalizing) {
+                summarize(oitem);
                 saveItem(mFinalized, oitem, 0);
                 mItemsFinalized++;
             }
@@ -229,6 +305,7 @@
                 delete item;
                 item = NULL;
             } else {
+                summarize(item);
                 saveItem(mFinalized, item, 0);
                 mItemsFinalized++;
             }
@@ -239,26 +316,6 @@
     return id;
 }
 
-List<MediaAnalyticsItem *> *MediaAnalyticsService::getMediaAnalyticsItemList(bool finished, nsecs_t ts) {
-    // this might never get called; the binder interface maps to the full parm list
-    // on the client side before making the binder call.
-    // but this lets us be sure...
-    List<MediaAnalyticsItem*> *list;
-    list = getMediaAnalyticsItemList(finished, ts, MediaAnalyticsItem::kKeyAny);
-    return list;
-}
-
-List<MediaAnalyticsItem *> *MediaAnalyticsService::getMediaAnalyticsItemList(bool , nsecs_t , MediaAnalyticsItem::Key ) {
-
-    // XXX: implement the get-item-list semantics
-
-    List<MediaAnalyticsItem *> *list = NULL;
-    // set up our query on the persistent data
-    // slurp in all of the pieces
-    // return that
-    return list;
-}
-
 status_t MediaAnalyticsService::dump(int fd, const Vector<String16>& args)
 {
     const size_t SIZE = 512;
@@ -277,15 +334,21 @@
 
     // crack any parameters
     bool clear = false;
+    bool summary = false;
     nsecs_t ts_since = 0;
+    String16 summaryOption("-summary");
     String16 clearOption("-clear");
     String16 sinceOption("-since");
     String16 helpOption("-help");
+    String16 onlyOption("-only");
+    const char *only = NULL;
     int n = args.size();
     for (int i = 0; i < n; i++) {
         String8 myarg(args[i]);
         if (args[i] == clearOption) {
             clear = true;
+        } else if (args[i] == summaryOption) {
+            summary = true;
         } else if (args[i] == sinceOption) {
             i++;
             if (i < n) {
@@ -301,12 +364,27 @@
             }
             // command line is milliseconds; internal units are nano-seconds
             ts_since *= 1000*1000;
+        } else if (args[i] == onlyOption) {
+            i++;
+            if (i < n) {
+                String8 value(args[i]);
+                const char *p = value.string();
+                char *q = strdup(p);
+                if (q != NULL) {
+                    if (only != NULL) {
+                        free((void*)only);
+                    }
+                only = q;
+                }
+            }
         } else if (args[i] == helpOption) {
             result.append("Recognized parameters:\n");
             result.append("-help        this help message\n");
+            result.append("-summary     show summary info\n");
             result.append("-clear       clears out saved records\n");
-            result.append("-since XXX   include records since XXX\n");
-            result.append("             (XXX is milliseconds since the UNIX epoch)\n");
+            result.append("-only X      process records for component X\n");
+            result.append("-since X     include records since X\n");
+            result.append("             (X is milliseconds since the UNIX epoch)\n");
             write(fd, result.string(), result.size());
             return NO_ERROR;
         }
@@ -314,9 +392,42 @@
 
     Mutex::Autolock _l(mLock);
 
-    snprintf(buffer, SIZE, "Dump of the mediametrics process:\n");
+    // we ALWAYS dump this piece
+    snprintf(buffer, SIZE, "Dump of the %s process:\n", kServiceName);
     result.append(buffer);
 
+    dumpHeaders(result, ts_since);
+
+    // only want 1, to avoid confusing folks that parse the output
+    if (summary) {
+        dumpSummaries(result, ts_since, only);
+    } else {
+        dumpRecent(result, ts_since, only);
+    }
+
+
+    if (clear) {
+        // remove everything from the finalized queue
+        while (mFinalized->size() > 0) {
+            MediaAnalyticsItem * oitem = *(mFinalized->begin());
+            mFinalized->erase(mFinalized->begin());
+            delete oitem;
+            mItemsDiscarded++;
+        }
+
+        // shall we clear the summary data too?
+
+    }
+
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+// dump headers
+void MediaAnalyticsService::dumpHeaders(String8 &result, nsecs_t ts_since) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+
     int enabled = MediaAnalyticsItem::isEnabled();
     if (enabled) {
         snprintf(buffer, SIZE, "Metrics gathering: enabled\n");
@@ -331,50 +442,71 @@
         " Discarded: %" PRId64 "\n",
         mItemsSubmitted, mItemsFinalized, mItemsDiscarded);
     result.append(buffer);
+    snprintf(buffer, SIZE,
+        "Summary Sets Discarded: %" PRId64 "\n", mSetsDiscarded);
+    result.append(buffer);
     if (ts_since != 0) {
         snprintf(buffer, SIZE,
             "Dumping Queue entries more recent than: %" PRId64 "\n",
             (int64_t) ts_since);
         result.append(buffer);
     }
+}
+
+// dump summary info
+void MediaAnalyticsService::dumpSummaries(String8 &result, nsecs_t ts_since, const char *only) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+    int slot = 0;
+
+    snprintf(buffer, SIZE, "\nSummarized Metrics:\n");
+    result.append(buffer);
+
+    // have each of the distillers dump records
+    if (mSummarizerSets != NULL) {
+        List<SummarizerSet *>::iterator itSet = mSummarizerSets->begin();
+        for (; itSet != mSummarizerSets->end(); itSet++) {
+            nsecs_t when = (*itSet)->getStarted();
+            if (when < ts_since) {
+                continue;
+            }
+            List<MetricsSummarizer *> *list = (*itSet)->getSummarizers();
+            List<MetricsSummarizer *>::iterator it = list->begin();
+            for (; it != list->end(); it++) {
+                if (only != NULL && strcmp(only, (*it)->getKey()) != 0) {
+                    ALOGV("Told to omit '%s'", (*it)->getKey());
+                }
+                AString distilled = (*it)->dumpSummary(slot, only);
+                result.append(distilled.c_str());
+            }
+        }
+    }
+}
+
+// the recent, detailed queues
+void MediaAnalyticsService::dumpRecent(String8 &result, nsecs_t ts_since, const char * only) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
 
     // show the recently recorded records
     snprintf(buffer, sizeof(buffer), "\nFinalized Metrics (oldest first):\n");
     result.append(buffer);
-    result.append(this->dumpQueue(mFinalized, ts_since));
+    result.append(this->dumpQueue(mFinalized, ts_since, only));
 
     snprintf(buffer, sizeof(buffer), "\nIn-Progress Metrics (newest first):\n");
     result.append(buffer);
-    result.append(this->dumpQueue(mOpen, ts_since));
+    result.append(this->dumpQueue(mOpen, ts_since, only));
 
     // show who is connected and injecting records?
     // talk about # records fed to the 'readers'
     // talk about # records we discarded, perhaps "discarded w/o reading" too
-
-    if (clear) {
-        // remove everything from the finalized queue
-        while (mFinalized->size() > 0) {
-            MediaAnalyticsItem * oitem = *(mFinalized->begin());
-            if (DEBUG_QUEUE) {
-                ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
-                    oitem->getKey().c_str(), oitem->getSessionID(),
-                    oitem->getTimestamp());
-            }
-            mFinalized->erase(mFinalized->begin());
-            mItemsDiscarded++;
-        }
-    }
-
-    write(fd, result.string(), result.size());
-    return NO_ERROR;
 }
-
 // caller has locked mLock...
 String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList) {
-    return dumpQueue(theList, (nsecs_t) 0);
+    return dumpQueue(theList, (nsecs_t) 0, NULL);
 }
 
-String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList, nsecs_t ts_since) {
+String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList, nsecs_t ts_since, const char * only) {
     String8 result;
     int slot = 0;
 
@@ -387,6 +519,11 @@
             if (when < ts_since) {
                 continue;
             }
+            if (only != NULL &&
+                strcmp(only, (*it)->getKey().c_str()) != 0) {
+                ALOGV("Omit '%s', it's not '%s'", (*it)->getKey().c_str(), only);
+                continue;
+            }
             AString entry = (*it)->toString();
             result.appendFormat("%5d: %s\n", slot, entry.c_str());
             slot++;
@@ -405,13 +542,6 @@
 
     Mutex::Autolock _l(mLock);
 
-    if (DEBUG_QUEUE) {
-        ALOGD("Inject a record: session %" PRId64 " ts %" PRId64 "",
-            item->getSessionID(), item->getTimestamp());
-        String8 before = dumpQueue(l);
-        ALOGD("Q before insert: %s", before.string());
-    }
-
     // adding at back of queue (fifo order)
     if (front)  {
         l->push_front(item);
@@ -419,30 +549,15 @@
         l->push_back(item);
     }
 
-    if (DEBUG_QUEUE) {
-        String8 after = dumpQueue(l);
-        ALOGD("Q after insert: %s", after.string());
-    }
-
     // keep removing old records the front until we're in-bounds
     if (mMaxRecords > 0) {
         while (l->size() > (size_t) mMaxRecords) {
             MediaAnalyticsItem * oitem = *(l->begin());
-            if (DEBUG_QUEUE) {
-                ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
-                    oitem->getKey().c_str(), oitem->getSessionID(),
-                    oitem->getTimestamp());
-            }
             l->erase(l->begin());
             delete oitem;
             mItemsDiscarded++;
         }
     }
-
-    if (DEBUG_QUEUE) {
-        String8 after = dumpQueue(l);
-        ALOGD("Q after cleanup: %s", after.string());
-    }
 }
 
 // are they alike enough that nitem can be folded into oitem?
@@ -515,29 +630,14 @@
 
     Mutex::Autolock _l(mLock);
 
-    if(DEBUG_QUEUE) {
-        String8 before = dumpQueue(l);
-        ALOGD("Q before delete: %s", before.string());
-    }
-
     for (List<MediaAnalyticsItem *>::iterator it = l->begin();
         it != l->end(); it++) {
         if ((*it)->getSessionID() != item->getSessionID())
             continue;
-
-        if (DEBUG_QUEUE) {
-            ALOGD(" --- removing record for SessionID %" PRId64 "", item->getSessionID());
-            ALOGD("drop record at %s:%d", __FILE__, __LINE__);
-        }
         delete *it;
         l->erase(it);
         break;
     }
-
-    if (DEBUG_QUEUE) {
-        String8 after = dumpQueue(l);
-        ALOGD("Q after delete: %s", after.string());
-    }
 }
 
 static AString allowedKeys[] =
@@ -579,5 +679,43 @@
     return false;
 }
 
+// insert into the appropriate summarizer.
+// we make our own copy to save/summarize
+void MediaAnalyticsService::summarize(MediaAnalyticsItem *item) {
+
+    ALOGV("MediaAnalyticsService::summarize()");
+
+    if (item == NULL) {
+        return;
+    }
+
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    if (mCurrentSet == NULL
+        || (mCurrentSet->getStarted() + mNewSetInterval < now)) {
+        newSummarizerSet();
+    }
+
+    if (mCurrentSet == NULL) {
+        return;
+    }
+
+    List<MetricsSummarizer *> *summarizers = mCurrentSet->getSummarizers();
+    List<MetricsSummarizer *>::iterator it = summarizers->begin();
+    for (; it != summarizers->end(); it++) {
+        if ((*it)->isMine(*item)) {
+            break;
+        }
+    }
+    if (it == summarizers->end()) {
+        ALOGD("no handler for type %s", item->getKey().c_str());
+        return;               // no handler
+    }
+
+    // invoke the summarizer. summarizer will make whatever copies
+    // it wants; the caller retains ownership of item.
+
+    (*it)->handleRecord(item);
+
+}
 
 } // namespace android
diff --git a/services/mediaanalytics/MediaAnalyticsService.h b/services/mediaanalytics/MediaAnalyticsService.h
index d2b0f09..6685967 100644
--- a/services/mediaanalytics/MediaAnalyticsService.h
+++ b/services/mediaanalytics/MediaAnalyticsService.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 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.
@@ -28,6 +28,8 @@
 
 #include <media/IMediaAnalyticsService.h>
 
+#include "MetricsSummarizer.h"
+
 
 namespace android {
 
@@ -39,12 +41,6 @@
     // on this side, caller surrenders ownership
     virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew);
 
-    virtual List<MediaAnalyticsItem *>
-            *getMediaAnalyticsItemList(bool finished, int64_t ts);
-    virtual List<MediaAnalyticsItem *>
-            *getMediaAnalyticsItemList(bool finished, int64_t ts, MediaAnalyticsItem::Key key);
-
-
     static  void            instantiate();
     virtual status_t        dump(int fd, const Vector<String16>& args);
 
@@ -58,6 +54,7 @@
     int64_t mItemsSubmitted;
     int64_t mItemsFinalized;
     int64_t mItemsDiscarded;
+    int64_t mSetsDiscarded;
     MediaAnalyticsItem::SessionID_t mLastSessionID;
 
     // partitioned a bit so we don't over serialize
@@ -67,6 +64,10 @@
     // the most we hold in memory
     // up to this many in each queue (open, finalized)
     int32_t mMaxRecords;
+    // # of sets of summaries
+    int32_t mMaxRecordSets;
+    // nsecs until we start a new record set
+    nsecs_t mNewSetInterval;
 
     // input validation after arrival from client
     bool contentValid(MediaAnalyticsItem *item, bool isTrusted);
@@ -82,12 +83,47 @@
     MediaAnalyticsItem *findItem(List<MediaAnalyticsItem *> *,
                                      MediaAnalyticsItem *, bool removeit);
 
+    // summarizers
+    void summarize(MediaAnalyticsItem *item);
+    class SummarizerSet {
+        nsecs_t mStarted;
+        List<MetricsSummarizer *> *mSummarizers;
+
+      public:
+        void appendSummarizer(MetricsSummarizer *s) {
+            if (s) {
+                mSummarizers->push_back(s);
+            }
+        };
+        nsecs_t getStarted() { return mStarted;}
+        void setStarted(nsecs_t started) {mStarted = started;}
+        List<MetricsSummarizer *> *getSummarizers() { return mSummarizers;}
+
+        SummarizerSet();
+        ~SummarizerSet();
+    };
+    void newSummarizerSet();
+    List<SummarizerSet *> *mSummarizerSets;
+    SummarizerSet *mCurrentSet;
+    List<MetricsSummarizer *> *getFirstSet() {
+        List<SummarizerSet *>::iterator first = mSummarizerSets->begin();
+        if (first != mSummarizerSets->end()) {
+            return (*first)->getSummarizers();
+        }
+        return NULL;
+    }
+
     void saveItem(MediaAnalyticsItem);
     void saveItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *, int);
     void deleteItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *);
 
+    // support for generating output
     String8 dumpQueue(List<MediaAnalyticsItem*> *);
-    String8 dumpQueue(List<MediaAnalyticsItem*> *, nsecs_t);
+    String8 dumpQueue(List<MediaAnalyticsItem*> *, nsecs_t, const char *only);
+
+    void dumpHeaders(String8 &result, nsecs_t ts_since);
+    void dumpSummaries(String8 &result, nsecs_t ts_since, const char * only);
+    void dumpRecent(String8 &result, nsecs_t ts_since, const char * only);
 
 };
 
diff --git a/services/mediaanalytics/MetricsSummarizer.cpp b/services/mediaanalytics/MetricsSummarizer.cpp
new file mode 100644
index 0000000..6d5787e
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizer.cpp
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#define LOG_TAG "MetricsSummarizer"
+#include <utils/Log.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+#define DEBUG_SORT      0
+#define DEBUG_QUEUE     0
+
+
+MetricsSummarizer::MetricsSummarizer(const char *key)
+    : mIgnorables(NULL)
+{
+    ALOGV("MetricsSummarizer::MetricsSummarizer");
+
+    if (key == NULL) {
+        mKey = key;
+    } else {
+        mKey = strdup(key);
+    }
+
+    mSummaries = new List<MediaAnalyticsItem *>();
+}
+
+MetricsSummarizer::~MetricsSummarizer()
+{
+    ALOGV("MetricsSummarizer::~MetricsSummarizer");
+    if (mKey) {
+        free((void *)mKey);
+        mKey = NULL;
+    }
+
+    // clear the list of items we have saved
+    while (mSummaries->size() > 0) {
+        MediaAnalyticsItem * oitem = *(mSummaries->begin());
+        if (DEBUG_QUEUE) {
+            ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
+                oitem->getKey().c_str(), oitem->getSessionID(),
+                oitem->getTimestamp());
+        }
+        mSummaries->erase(mSummaries->begin());
+        delete oitem;
+    }
+}
+
+// so we know what summarizer we were using
+const char *MetricsSummarizer::getKey() {
+    const char *value = mKey;
+    if (value == NULL) {
+        value = "unknown";
+    }
+    return value;
+}
+
+// should the record be given to this summarizer
+bool MetricsSummarizer::isMine(MediaAnalyticsItem &item)
+{
+    if (mKey == NULL)
+        return true;
+    AString itemKey = item.getKey();
+    if (strcmp(mKey, itemKey.c_str()) != 0) {
+        return false;
+    }
+    return true;
+}
+
+AString MetricsSummarizer::dumpSummary(int &slot)
+{
+    return dumpSummary(slot, NULL);
+}
+
+AString MetricsSummarizer::dumpSummary(int &slot, const char *only)
+{
+    AString value = "";
+
+    List<MediaAnalyticsItem *>::iterator it = mSummaries->begin();
+    if (it != mSummaries->end()) {
+        char buf[16];   // enough for "#####: "
+        for (; it != mSummaries->end(); it++) {
+            if (only != NULL && strcmp(only, (*it)->getKey().c_str()) != 0) {
+                continue;
+            }
+            AString entry = (*it)->toString();
+            snprintf(buf, sizeof(buf), "%5d: ", slot);
+            value.append(buf);
+            value.append(entry.c_str());
+            value.append("\n");
+            slot++;
+        }
+    }
+    return value;
+}
+
+void MetricsSummarizer::setIgnorables(const char **ignorables) {
+    mIgnorables = ignorables;
+}
+
+const char **MetricsSummarizer::getIgnorables() {
+    return mIgnorables;
+}
+
+void MetricsSummarizer::handleRecord(MediaAnalyticsItem *item) {
+
+    ALOGV("MetricsSummarizer::handleRecord() for %s",
+                item == NULL ? "<nothing>" : item->toString().c_str());
+
+    if (item == NULL) {
+        return;
+    }
+
+    List<MediaAnalyticsItem *>::iterator it = mSummaries->begin();
+    for (; it != mSummaries->end(); it++) {
+        bool good = sameAttributes((*it), item, getIgnorables());
+        ALOGV("Match against %s says %d",
+              (*it)->toString().c_str(), good);
+        if (good)
+            break;
+    }
+    if (it == mSummaries->end()) {
+            ALOGV("save new record");
+            item = item->dup();
+            if (item == NULL) {
+                ALOGE("unable to save MediaMetrics record");
+            }
+            sortProps(item);
+            item->setInt32("aggregated",1);
+            mSummaries->push_back(item);
+    } else {
+            ALOGV("increment existing record");
+            (*it)->addInt32("aggregated",1);
+            mergeRecord(*(*it), *item);
+    }
+}
+
+void MetricsSummarizer::mergeRecord(MediaAnalyticsItem &/*have*/, MediaAnalyticsItem &/*item*/) {
+    // default is no further massaging.
+    ALOGV("MetricsSummarizer::mergeRecord() [default]");
+    return;
+}
+
+
+//
+// Comparators
+//
+
+// testing that all of 'single' is in 'summ'
+// and that the values match.
+// 'summ' may have extra fields.
+// 'ignorable' is a set of things that we don't worry about matching up
+// (usually time- or count-based values we'll sum elsewhere)
+bool MetricsSummarizer::sameAttributes(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignorable) {
+
+    if (single == NULL || summ == NULL) {
+        return false;
+    }
+    ALOGV("MetricsSummarizer::sameAttributes(): summ %s", summ->toString().c_str());
+    ALOGV("MetricsSummarizer::sameAttributes(): single %s", single->toString().c_str());
+
+    // this can be made better.
+    for(size_t i=0;i<single->mPropCount;i++) {
+        MediaAnalyticsItem::Prop *prop1 = &(single->mProps[i]);
+        const char *attrName = prop1->mName;
+        ALOGV("compare on attr '%s'", attrName);
+
+        // is it something we should ignore
+        if (ignorable != NULL) {
+            const char **ig = ignorable;
+            while (*ig) {
+                if (strcmp(*ig, attrName) == 0) {
+                    break;
+                }
+                ig++;
+            }
+            if (*ig) {
+                ALOGV("we don't mind that it has attr '%s'", attrName);
+                continue;
+            }
+        }
+
+        MediaAnalyticsItem::Prop *prop2 = summ->findProp(attrName);
+        if (prop2 == NULL) {
+            ALOGV("summ doesn't have this attr");
+            return false;
+        }
+        if (prop1->mType != prop2->mType) {
+            ALOGV("mismatched attr types");
+            return false;
+        }
+        switch (prop1->mType) {
+            case MediaAnalyticsItem::kTypeInt32:
+                if (prop1->u.int32Value != prop2->u.int32Value)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeInt64:
+                if (prop1->u.int64Value != prop2->u.int64Value)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeDouble:
+                // XXX: watch out for floating point comparisons!
+                if (prop1->u.doubleValue != prop2->u.doubleValue)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeCString:
+                if (strcmp(prop1->u.CStringValue, prop2->u.CStringValue) != 0)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeRate:
+                if (prop1->u.rate.count != prop2->u.rate.count)
+                    return false;
+                if (prop1->u.rate.duration != prop2->u.rate.duration)
+                    return false;
+                break;
+            default:
+                return false;
+        }
+    }
+
+    return true;
+}
+
+bool MetricsSummarizer::sameAttributesId(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignorable) {
+
+    // verify same user
+    if (summ->mPid != single->mPid)
+        return false;
+
+    // and finally do the more expensive validation of the attributes
+    return sameAttributes(summ, single, ignorable);
+}
+
+int MetricsSummarizer::PropSorter(const void *a, const void *b) {
+    MediaAnalyticsItem::Prop *ai = (MediaAnalyticsItem::Prop *)a;
+    MediaAnalyticsItem::Prop *bi = (MediaAnalyticsItem::Prop *)b;
+    return strcmp(ai->mName, bi->mName);
+}
+
+// we sort in the summaries so that it looks pretty in the dumpsys
+void MetricsSummarizer::sortProps(MediaAnalyticsItem *item) {
+    if (item->mPropCount != 0) {
+        if (DEBUG_SORT) {
+            ALOGD("sortProps(pre): %s", item->toString().c_str());
+        }
+        qsort(item->mProps, item->mPropCount,
+              sizeof(MediaAnalyticsItem::Prop), MetricsSummarizer::PropSorter);
+        if (DEBUG_SORT) {
+            ALOGD("sortProps(pst): %s", item->toString().c_str());
+        }
+    }
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizer.h b/services/mediaanalytics/MetricsSummarizer.h
new file mode 100644
index 0000000..0b64eac
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizer.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 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.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZER_H
+#define ANDROID_METRICSSUMMARIZER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+
+namespace android {
+
+class MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizer(const char *key);
+    virtual ~MetricsSummarizer();
+
+    // show the key
+    const char * getKey();
+
+    // should the record be given to this summarizer
+    bool isMine(MediaAnalyticsItem &item);
+
+    // hand the record to this summarizer
+    void handleRecord(MediaAnalyticsItem *item);
+
+    virtual void mergeRecord(MediaAnalyticsItem &have, MediaAnalyticsItem &incoming);
+
+    // dump the summarized records (for dumpsys)
+    AString dumpSummary(int &slot);
+    AString dumpSummary(int &slot, const char *only);
+
+    void setIgnorables(const char **);
+    const char **getIgnorables();
+
+ protected:
+
+    // various comparators
+    // "do these records have same attributes and values in those attrs"
+    // ditto, but watch for "error" fields
+    bool sameAttributes(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignoreables);
+    // attributes + from the same app/userid
+    bool sameAttributesId(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignoreables);
+
+    static int PropSorter(const void *a, const void *b);
+    void sortProps(MediaAnalyticsItem *item);
+
+ private:
+    const char *mKey;
+    const char **mIgnorables;
+    List<MediaAnalyticsItem *> *mSummaries;
+
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZER_H
diff --git a/services/mediaanalytics/MetricsSummarizerCodec.cpp b/services/mediaanalytics/MetricsSummarizerCodec.cpp
new file mode 100644
index 0000000..8c74782
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerCodec.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#define LOG_TAG "MetricsSummarizerCodec"
+#include <utils/Log.h>
+
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerCodec.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerCodec::MetricsSummarizerCodec(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerCodec::MetricsSummarizerCodec");
+}
+
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerCodec.h b/services/mediaanalytics/MetricsSummarizerCodec.h
new file mode 100644
index 0000000..c01196f
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerCodec.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 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.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERCODEC_H
+#define ANDROID_METRICSSUMMARIZERCODEC_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerCodec : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerCodec(const char *key);
+    virtual ~MetricsSummarizerCodec() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERCODEC_H
diff --git a/services/mediaanalytics/MetricsSummarizerExtractor.cpp b/services/mediaanalytics/MetricsSummarizerExtractor.cpp
new file mode 100644
index 0000000..190f87d
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerExtractor.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#define LOG_TAG "MetricsSummarizerExtractor"
+#include <utils/Log.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerExtractor.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerExtractor::MetricsSummarizerExtractor(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerExtractor::MetricsSummarizerExtractor");
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerExtractor.h b/services/mediaanalytics/MetricsSummarizerExtractor.h
new file mode 100644
index 0000000..eee052b
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerExtractor.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 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.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZEREXTRACTOR_H
+#define ANDROID_METRICSSUMMARIZEREXTRACTOR_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerExtractor : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerExtractor(const char *key);
+    virtual ~MetricsSummarizerExtractor() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZEREXTRACTOR_H
diff --git a/services/mediaanalytics/MetricsSummarizerPlayer.cpp b/services/mediaanalytics/MetricsSummarizerPlayer.cpp
new file mode 100644
index 0000000..5162059
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerPlayer.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#define LOG_TAG "MetricsSummarizerPlayer"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerPlayer.h"
+
+
+
+
+namespace android {
+
+static const char *player_ignorable[] = {
+    "android.media.mediaplayer.durationMs",
+    "android.media.mediaplayer.playingMs",
+    "android.media.mediaplayer.frames",
+    "android.media.mediaplayer.dropped",
+    0
+};
+
+MetricsSummarizerPlayer::MetricsSummarizerPlayer(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerPlayer::MetricsSummarizerPlayer");
+    setIgnorables(player_ignorable);
+}
+
+void MetricsSummarizerPlayer::mergeRecord(MediaAnalyticsItem &summation, MediaAnalyticsItem &item) {
+
+    ALOGV("MetricsSummarizerPlayer::mergeRecord()");
+
+    //
+    // we sum time & frames.
+    // be careful about our special "-1" values that indicate 'unknown'
+    // treat those as 0 [basically, not summing them into the totals].
+    int64_t duration = 0;
+    if (item.getInt64("android.media.mediaplayer.durationMs", &duration)) {
+        ALOGV("found durationMs of %" PRId64, duration);
+        summation.addInt64("android.media.mediaplayer.durationMs",duration);
+    }
+    int64_t playing = 0;
+    if (item.getInt64("android.media.mediaplayer.playingMs", &playing))
+        ALOGV("found playingMs of %" PRId64, playing);
+        if (playing >= 0) {
+            summation.addInt64("android.media.mediaplayer.playingMs",playing);
+        }
+    int64_t frames = 0;
+    if (item.getInt64("android.media.mediaplayer.frames", &frames))
+        ALOGV("found framess of %" PRId64, frames);
+        if (frames >= 0) {
+            summation.addInt64("android.media.mediaplayer.frames",frames);
+        }
+    int64_t dropped = 0;
+    if (item.getInt64("android.media.mediaplayer.dropped", &dropped))
+        ALOGV("found dropped of %" PRId64, dropped);
+        if (dropped >= 0) {
+            summation.addInt64("android.media.mediaplayer.dropped",dropped);
+        }
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerPlayer.h b/services/mediaanalytics/MetricsSummarizerPlayer.h
new file mode 100644
index 0000000..ad1bf74
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerPlayer.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 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.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERPLAYER_H
+#define ANDROID_METRICSSUMMARIZERPLAYER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerPlayer : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerPlayer(const char *key);
+    virtual ~MetricsSummarizerPlayer() {};
+
+    virtual void mergeRecord(MediaAnalyticsItem &have, MediaAnalyticsItem &incoming);
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERPLAYER_H
diff --git a/services/mediaanalytics/MetricsSummarizerRecorder.cpp b/services/mediaanalytics/MetricsSummarizerRecorder.cpp
new file mode 100644
index 0000000..c2919c3
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerRecorder.cpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#define LOG_TAG "MetricsSummarizerRecorder"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerRecorder.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerRecorder::MetricsSummarizerRecorder(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerRecorder::MetricsSummarizerRecorder");
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerRecorder.h b/services/mediaanalytics/MetricsSummarizerRecorder.h
new file mode 100644
index 0000000..963baab
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerRecorder.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 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.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERRECORDER_H
+#define ANDROID_METRICSSUMMARIZERRECORDER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerRecorder : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerRecorder(const char *key);
+    virtual ~MetricsSummarizerRecorder() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERRECORDER_H