Fix shutdown crash issue.

3 files changed, 62 insertions, 58 deletions

diff --git a/indra/llwebrtc/llwebrtc.cpp b/indra/llwebrtc/llwebrtc.cpp
index dc746b7629..a3dadd696c 100644
--- a/indra/llwebrtc/llwebrtc.cpp
+++ b/indra/llwebrtc/llwebrtc.cpp
@@ -39,6 +39,34 @@ namespace llwebrtc
 
 const float VOLUME_SCALE_WEBRTC = 3.0f;
 
+
+double LLAudioDeviceObserver::getMicrophoneEnergy() { return mMicrophoneEnergy; }
+
+void LLAudioDeviceObserver::OnCaptureData(const void    *audio_samples,
+                                         const size_t   num_samples,
+                                         const size_t   bytes_per_sample,
+                                         const size_t   num_channels,
+                                         const uint32_t samples_per_sec)
+{
+    double       energy  = 0;
+    const short *samples = (const short *) audio_samples;
+    for (size_t index = 0; index < num_samples * num_channels; index++)
+    {
+        double sample = (static_cast<double>(samples[index]) / (double) 32768);
+        energy += sample * sample;
+    }
+    mMicrophoneEnergy = std::sqrt(energy);
+}
+
+void LLAudioDeviceObserver::OnRenderData(const void    *audio_samples,
+                                        const size_t   num_samples,
+                                        const size_t   bytes_per_sample,
+                                        const size_t   num_channels,
+                                        const uint32_t samples_per_sec)
+{
+}
+
+
 void LLWebRTCImpl::init()
 {
     mAnswerReceived = false;
@@ -58,9 +86,10 @@ void LLWebRTCImpl::init()
     mWorkerThread->PostTask(
         [this]()
         {
+            mAudioDeviceObserver = new LLAudioDeviceObserver;
             mDeviceModule = webrtc::CreateAudioDeviceWithDataObserver(webrtc::AudioDeviceModule::AudioLayer::kPlatformDefaultAudio,
                                                                       mTaskQueueFactory.get(),
-                                                                      std::unique_ptr<webrtc::AudioDeviceDataObserver>(this));
+                                                                      std::unique_ptr<webrtc::AudioDeviceDataObserver>(mAudioDeviceObserver));
             mDeviceModule->Init();
             mDeviceModule->SetStereoRecording(false);
             mDeviceModule->EnableBuiltInAEC(false);
@@ -83,6 +112,10 @@ void LLWebRTCImpl::terminate()
     mWorkerThread->BlockingCall(
         [this]()
         {
+            if (mDeviceModule)
+            {
+                mDeviceModule->Terminate();
+            }
             mDeviceModule = nullptr;
             mTaskQueueFactory = nullptr;
 
@@ -231,32 +264,6 @@ void LLWebRTCImpl::setTuningMode(bool enable)
         });
 }
 
-double LLWebRTCImpl::getTuningMicrophoneEnergy() { return mTuningEnergy; }
-
-void LLWebRTCImpl::OnCaptureData(const void    *audio_samples,
-                                 const size_t   num_samples,
-                                 const size_t   bytes_per_sample,
-                                 const size_t   num_channels,
-                                 const uint32_t samples_per_sec)
-{
-    double       energy  = 0;
-    const short *samples = (const short *) audio_samples;
-    for (size_t index = 0; index < num_samples * num_channels; index++)
-    {
-        double sample = (static_cast<double>(samples[index]) / (double) 32768);
-        energy += sample * sample;
-    }
-    mTuningEnergy = std::sqrt(energy);
-}
-
-void LLWebRTCImpl::OnRenderData(const void    *audio_samples,
-                                const size_t   num_samples,
-                                const size_t   bytes_per_sample,
-                                const size_t   num_channels,
-                                const uint32_t samples_per_sec)
-{
-}
-
 //
 // LLWebRTCSignalInterface
 //
@@ -470,16 +477,9 @@ void LLWebRTCImpl::setSpeakerVolume(float volume)
         });
 }
 
-void LLWebRTCImpl::requestAudioLevel()
+double LLWebRTCImpl::getAudioLevel()
 {
-    mWorkerThread->PostTask(
-        [this]()
-        {
-           for (auto &observer : mAudioObserverList)
-           {
-               observer->OnAudioLevel((float)mTuningEnergy);
-           }
-        });
+    return mAudioDeviceObserver->getMicrophoneEnergy();
 }
 
 //
diff --git a/indra/llwebrtc/llwebrtc.h b/indra/llwebrtc/llwebrtc.h
index d0d2834e3c..30c0d63c55 100644
--- a/indra/llwebrtc/llwebrtc.h
+++ b/indra/llwebrtc/llwebrtc.h
@@ -86,13 +86,12 @@ class LLWebRTCDeviceInterface
     virtual void unsetDevicesObserver(LLWebRTCDevicesObserver *observer) = 0;
 
     virtual void setTuningMode(bool enable) = 0;
-    virtual double getTuningMicrophoneEnergy() = 0;
+    virtual double getAudioLevel() = 0;
 };
 
 class LLWebRTCAudioObserver
 {
   public:
-    virtual void OnAudioLevel(float level)   = 0;
 };
 
 class LLWebRTCAudioInterface
@@ -101,8 +100,7 @@ class LLWebRTCAudioInterface
     virtual void setAudioObserver(LLWebRTCAudioObserver *observer)  = 0;
     virtual void unsetAudioObserver(LLWebRTCAudioObserver *observer) = 0;
     virtual void setMute(bool mute) = 0;
-    virtual void setSpeakerVolume(float volume) = 0;  // volume between 0.0 and 1.0
-    virtual void requestAudioLevel() = 0;
+    virtual void setSpeakerVolume(float volume) = 0;  // volume between 0.0 and 1.0                                = 0;
 };
 
 class LLWebRTCDataObserver
diff --git a/indra/llwebrtc/llwebrtc_impl.h b/indra/llwebrtc/llwebrtc_impl.h
index 1670d10705..da829e52af 100644
--- a/indra/llwebrtc/llwebrtc_impl.h
+++ b/indra/llwebrtc/llwebrtc_impl.h
@@ -63,11 +63,31 @@
 namespace llwebrtc
 {
 
+class LLAudioDeviceObserver : public webrtc::AudioDeviceDataObserver
+{
+  public:
+    double getMicrophoneEnergy();
+
+    void OnCaptureData(const void    *audio_samples,
+                       const size_t   num_samples,
+                       const size_t   bytes_per_sample,
+                       const size_t   num_channels,
+                       const uint32_t samples_per_sec) override;
+
+    void OnRenderData(const void    *audio_samples,
+                      const size_t   num_samples,
+                      const size_t   bytes_per_sample,
+                      const size_t   num_channels,
+                      const uint32_t samples_per_sec) override;
+
+  protected:
+    double mMicrophoneEnergy;
+};
+
 class LLWebRTCImpl : public LLWebRTCDeviceInterface,
                      public LLWebRTCSignalInterface,
                      public LLWebRTCAudioInterface,
                      public LLWebRTCDataInterface,
-                     public webrtc::AudioDeviceDataObserver,
                      public webrtc::PeerConnectionObserver,
                      public webrtc::CreateSessionDescriptionObserver,
                      public webrtc::SetRemoteDescriptionObserverInterface,
@@ -77,7 +97,7 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface,
 {
   public:
     LLWebRTCImpl() : 
-        mTuningEnergy(0.0)
+        mAudioDeviceObserver(nullptr)
     {
     }
     ~LLWebRTCImpl() {}
@@ -98,20 +118,7 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface,
     void setRenderDevice(const std::string& id) override;
 
     void setTuningMode(bool enable) override;
-    double getTuningMicrophoneEnergy() override;
-
-
-    void OnCaptureData(const void    *audio_samples,
-                       const size_t   num_samples,
-                       const size_t   bytes_per_sample,
-                       const size_t   num_channels,
-                       const uint32_t samples_per_sec) override;
-
-    void OnRenderData(const void    *audio_samples,
-                      const size_t   num_samples,
-                      const size_t   bytes_per_sample,
-                      const size_t   num_channels,
-                      const uint32_t samples_per_sec) override;
+    double getAudioLevel() override;
 
     //
     // LLWebRTCSignalInterface
@@ -131,7 +138,6 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface,
     void unsetAudioObserver(LLWebRTCAudioObserver *observer) override;
     void setMute(bool mute) override;
     void setSpeakerVolume(float folume) override; // range 0.0-1.0
-    void requestAudioLevel() override;
     
     //
     // LLWebRTCDataInterface
@@ -195,7 +201,7 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface,
     rtc::scoped_refptr<webrtc::AudioDeviceModule>              mDeviceModule;
     std::vector<LLWebRTCDevicesObserver *>                     mVoiceDevicesObserverList;
 
-    double mTuningEnergy;
+    LLAudioDeviceObserver *                                    mAudioDeviceObserver;
 
     // signaling
     std::vector<LLWebRTCSignalingObserver *>                   mSignalingObserverList;