Allow audio to recover if no audio devices were present during stream start

app/streaming/session.cpp

@@ -548,7 +548,6 @@ Session::Session(NvComputer* computer, NvApp& app, StreamingPreferences *prefere
       m_Window(nullptr),
       m_VideoDecoder(nullptr),
       m_DecoderLock(0),
-      m_AudioDisabled(false),
       m_AudioMuted(false),
       m_QtWindow(nullptr),
       m_UnexpectedTermination(true), // Failure prior to streaming is unexpected
@@ -993,8 +992,7 @@ bool Session::validateLaunch(SDL_Window* testWindow)
     }
 
     // If nothing worked, warn the user that audio will not work
-    m_AudioDisabled = !audioTestPassed;
-    if (m_AudioDisabled) {
+    if (!audioTestPassed) {
         emitLaunchWarning(tr("Failed to open audio device. Audio will be unavailable during this session."));
     }
 
@@ -1467,8 +1465,7 @@ bool Session::startConnectionAsync()
     }
 
     int err = LiStartConnection(&hostInfo, &m_StreamConfig, &k_ConnCallbacks,
-                                &m_VideoCallbacks,
-                                m_AudioDisabled ? nullptr : &m_AudioCallbacks,
+                                &m_VideoCallbacks, &m_AudioCallbacks,
                                 NULL, 0, NULL, 0);
     if (err != 0) {
         // We already displayed an error dialog in the stage failure