diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
index bfad254..b6548e6 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -258,18 +258,17 @@
     return result;
 
 error:
-    close();
+    releaseCloseFinal();
     return result;
 }
 
 // This must be called under mStreamLock.
-aaudio_result_t AudioStreamInternal::close() {
+aaudio_result_t AudioStreamInternal::release_l() {
     aaudio_result_t result = AAUDIO_OK;
     ALOGV("%s(): mServiceStreamHandle = 0x%08X", __func__, mServiceStreamHandle);
     if (mServiceStreamHandle != AAUDIO_HANDLE_INVALID) {
-        // Don't close a stream while it is running.
         aaudio_stream_state_t currentState = getState();
-        // Don't close a stream while it is running. Stop it first.
+        // Don't release a stream while it is running. Stop it first.
         // If DISCONNECTED then we should still try to stop in case the
         // error callback is still running.
         if (isActive() || currentState == AAUDIO_STREAM_STATE_DISCONNECTED) {
@@ -282,10 +281,8 @@
         mServiceInterface.closeStream(serviceStreamHandle);
         delete[] mCallbackBuffer;
         mCallbackBuffer = nullptr;
-
-        setState(AAUDIO_STREAM_STATE_CLOSED);
         result = mEndPointParcelable.close();
-        aaudio_result_t result2 = AudioStream::close();
+        aaudio_result_t result2 = AudioStream::release_l();
         return (result != AAUDIO_OK) ? result : result2;
     } else {
         return AAUDIO_ERROR_INVALID_HANDLE;
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
index 596d37f..8843a8a 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.h
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -58,7 +58,7 @@
 
     aaudio_result_t open(const AudioStreamBuilder &builder) override;
 
-    aaudio_result_t close() override;
+    aaudio_result_t release_l() override;
 
     aaudio_result_t setBufferSize(int32_t requestedFrames) override;
 
diff --git a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
index dc9f48c..536009a 100644
--- a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
@@ -49,7 +49,7 @@
                              getDeviceChannelCount());
 
         if (result != AAUDIO_OK) {
-            close();
+            releaseCloseFinal();
         }
         // Sample rate is constrained to common values by now and should not overflow.
         int32_t numFrames = kRampMSec * getSampleRate() / AAUDIO_MILLIS_PER_SECOND;
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
index 184e9cb..8965875 100644
--- a/media/libaaudio/src/core/AAudioAudio.cpp
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -25,7 +25,6 @@
 
 #include <aaudio/AAudio.h>
 #include <aaudio/AAudioTesting.h>
-
 #include "AudioClock.h"
 #include "AudioGlobal.h"
 #include "AudioStreamBuilder.h"
@@ -231,21 +230,42 @@
     return AAUDIO_ERROR_NULL;
 }
 
-AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream)
-{
+AAUDIO_API aaudio_result_t  AAudioStream_release(AAudioStream* stream) {
     aaudio_result_t result = AAUDIO_ERROR_NULL;
-    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    AudioStream* audioStream = convertAAudioStreamToAudioStream(stream);
     if (audioStream != nullptr) {
         aaudio_stream_id_t id = audioStream->getId();
         ALOGD("%s(s#%u) called ---------------", __func__, id);
-        result = audioStream->safeClose();
-        // Close will only fail if called illegally, for example, from a callback.
+        result = audioStream->safeRelease();
+        // safeRelease() will only fail if called illegally, for example, from a callback.
+        // That would result in the release of an active stream, which would cause a crash.
+        if (result != AAUDIO_OK) {
+            ALOGW("%s(s#%u) failed. Release it from another thread.",
+                  __func__, id);
+        }
+        ALOGD("%s(s#%u) returned %d %s ---------", __func__,
+                id, result, AAudio_convertResultToText(result));
+    }
+    return result;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream) {
+    aaudio_result_t result = AAUDIO_ERROR_NULL;
+    AudioStream* audioStream = convertAAudioStreamToAudioStream(stream);
+    if (audioStream != nullptr) {
+        aaudio_stream_id_t id = audioStream->getId();
+        ALOGD("%s(s#%u) called ---------------", __func__, id);
+        result = audioStream->safeRelease();
+        // safeRelease will only fail if called illegally, for example, from a callback.
         // That would result in deleting an active stream, which would cause a crash.
-        if (result == AAUDIO_OK) {
-            audioStream->unregisterPlayerBase();
-            delete audioStream;
+        if (result != AAUDIO_OK) {
+            ALOGW("%s(s#%u) failed. Close it from another thread.",
+                  __func__, id);
         } else {
-            ALOGW("%s attempt to close failed. Close it from another thread.", __func__);
+            audioStream->unregisterPlayerBase();
+             // Mark CLOSED to keep destructors from asserting.
+            audioStream->closeFinal();
+            delete audioStream;
         }
         ALOGD("%s(s#%u) returned %d ---------", __func__, id, result);
     }
diff --git a/media/libaaudio/src/core/AudioGlobal.cpp b/media/libaaudio/src/core/AudioGlobal.cpp
index e6d9a0d..d299761 100644
--- a/media/libaaudio/src/core/AudioGlobal.cpp
+++ b/media/libaaudio/src/core/AudioGlobal.cpp
@@ -87,9 +87,9 @@
         AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_FLUSHED);
         AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPING);
         AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPED);
-        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_DISCONNECTED);
         AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSING);
         AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_DISCONNECTED);
     }
     return "Unrecognized AAudio state.";
 }
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
index 1560e0c..f51db70 100644
--- a/media/libaaudio/src/core/AudioStream.cpp
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -249,25 +249,29 @@
     return requestStop();
 }
 
-aaudio_result_t AudioStream::safeClose() {
-    // This get temporarily unlocked in the close when joining callback threads.
+aaudio_result_t AudioStream::safeRelease() {
+    // This get temporarily unlocked in the release() when joining callback threads.
     std::lock_guard<std::mutex> lock(mStreamLock);
     if (collidesWithCallback()) {
         ALOGE("%s cannot be called from a callback!", __func__);
         return AAUDIO_ERROR_INVALID_STATE;
     }
-    return close();
+    if (getState() == AAUDIO_STREAM_STATE_CLOSING) {
+        return AAUDIO_OK;
+    }
+    return release_l();
 }
 
 void AudioStream::setState(aaudio_stream_state_t state) {
-    ALOGV("%s(%d) from %d to %d", __func__, getId(), mState, state);
+    ALOGD("%s(s#%d) from %d to %d", __func__, getId(), mState, state);
     // CLOSED is a final state
     if (mState == AAUDIO_STREAM_STATE_CLOSED) {
         ALOGE("%s(%d) tried to set to %d but already CLOSED", __func__, getId(), state);
 
-    // Once DISCONNECTED, we can only move to CLOSED state.
+    // Once DISCONNECTED, we can only move to CLOSING or CLOSED state.
     } else if (mState == AAUDIO_STREAM_STATE_DISCONNECTED
-               && state != AAUDIO_STREAM_STATE_CLOSED) {
+               && !(state == AAUDIO_STREAM_STATE_CLOSING
+                   || state == AAUDIO_STREAM_STATE_CLOSED)) {
         ALOGE("%s(%d) tried to set to %d but already DISCONNECTED", __func__, getId(), state);
 
     } else {
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
index b4ffcf2..9bda41b 100644
--- a/media/libaaudio/src/core/AudioStream.h
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -115,13 +115,32 @@
     virtual aaudio_result_t open(const AudioStreamBuilder& builder);
 
     /**
-     * Close the stream and deallocate any resources from the open() call.
-     * It is safe to call close() multiple times.
+     * Free any hardware or system resources from the open() call.
+     * It is safe to call release_l() multiple times.
      */
-    virtual aaudio_result_t close() {
+    virtual aaudio_result_t release_l() {
+        setState(AAUDIO_STREAM_STATE_CLOSING);
         return AAUDIO_OK;
     }
 
+    aaudio_result_t closeFinal() {
+        // State is checked by destructor.
+        setState(AAUDIO_STREAM_STATE_CLOSED);
+        return AAUDIO_OK;
+    }
+
+    /**
+     * Release then close the stream.
+     * @return AAUDIO_OK or negative error.
+     */
+    aaudio_result_t releaseCloseFinal() {
+        aaudio_result_t result = release_l(); // TODO review locking
+        if (result == AAUDIO_OK) {
+          result = closeFinal();
+        }
+        return result;
+    }
+
     // This is only used to identify a stream in the logs without
     // revealing any pointers.
     aaudio_stream_id_t getId() {
@@ -373,7 +392,7 @@
      */
     aaudio_result_t systemStopFromCallback();
 
-    aaudio_result_t safeClose();
+    aaudio_result_t safeRelease();
 
 protected:
 
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 54af580..2ed82d2 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -182,7 +182,7 @@
         // Did we get a valid track?
         status_t status = mAudioRecord->initCheck();
         if (status != OK) {
-            close();
+            releaseCloseFinal();
             ALOGE("open(), initCheck() returned %d", status);
             return AAudioConvert_androidToAAudioResult(status);
         }
@@ -278,16 +278,17 @@
     return AAUDIO_OK;
 }
 
-aaudio_result_t AudioStreamRecord::close()
-{
-    // TODO add close() or release() to AudioRecord API then call it from here
-    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+aaudio_result_t AudioStreamRecord::release_l() {
+    // TODO add close() or release() to AudioFlinger's AudioRecord API.
+    //  Then call it from here
+    if (getState() != AAUDIO_STREAM_STATE_CLOSING) {
         mAudioRecord->removeAudioDeviceCallback(mDeviceCallback);
         mAudioRecord.clear();
-        setState(AAUDIO_STREAM_STATE_CLOSED);
+        mFixedBlockWriter.close();
+        return AudioStream::release_l();
+    } else {
+        return AAUDIO_OK; // already released
     }
-    mFixedBlockWriter.close();
-    return AudioStream::close();
 }
 
 const void * AudioStreamRecord::maybeConvertDeviceData(const void *audioData, int32_t numFrames) {
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.h b/media/libaaudio/src/legacy/AudioStreamRecord.h
index 2f41d34..c5944c7 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.h
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.h
@@ -38,7 +38,7 @@
     virtual ~AudioStreamRecord();
 
     aaudio_result_t open(const AudioStreamBuilder & builder) override;
-    aaudio_result_t close() override;
+    aaudio_result_t release_l() override;
 
     aaudio_result_t requestStart() override;
     aaudio_result_t requestStop() override;
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
index 094cdd1..00963d6 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -176,7 +176,7 @@
     // Did we get a valid track?
     status_t status = mAudioTrack->initCheck();
     if (status != NO_ERROR) {
-        close();
+        releaseCloseFinal();
         ALOGE("open(), initCheck() returned %d", status);
         return AAudioConvert_androidToAAudioResult(status);
     }
@@ -239,14 +239,18 @@
     return AAUDIO_OK;
 }
 
-aaudio_result_t AudioStreamTrack::close()
-{
-    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+aaudio_result_t AudioStreamTrack::release_l() {
+    if (getState() != AAUDIO_STREAM_STATE_CLOSING) {
         mAudioTrack->removeAudioDeviceCallback(mDeviceCallback);
-        setState(AAUDIO_STREAM_STATE_CLOSED);
+        // TODO Investigate why clear() causes a hang in test_various.cpp
+        // if I call close() from a data callback.
+        // But the same thing in AudioRecord is OK!
+        // mAudioTrack.clear();
+        mFixedBlockReader.close();
+        return AudioStream::release_l();
+    } else {
+        return AAUDIO_OK; // already released
     }
-    mFixedBlockReader.close();
-    return AAUDIO_OK;
 }
 
 void AudioStreamTrack::processCallback(int event, void *info) {
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.h b/media/libaaudio/src/legacy/AudioStreamTrack.h
index 68608de..550f693 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.h
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.h
@@ -41,7 +41,7 @@
 
 
     aaudio_result_t open(const AudioStreamBuilder & builder) override;
-    aaudio_result_t close() override;
+    aaudio_result_t release_l() override;
 
     aaudio_result_t requestStart() override;
     aaudio_result_t requestPause() override;
diff --git a/media/libaaudio/src/libaaudio.map.txt b/media/libaaudio/src/libaaudio.map.txt
index 4605e82..2e00aa5 100644
--- a/media/libaaudio/src/libaaudio.map.txt
+++ b/media/libaaudio/src/libaaudio.map.txt
@@ -58,6 +58,7 @@
     AAudioStream_getTimestamp;
     AAudioStream_isMMapUsed;
     AAudioStream_isPrivacySensitive;   # introduced=30
+    AAudioStream_release;        # introduced=30
   local:
     *;
 };