commit f82325970bd20f71679796a685f8d63828b450e0
author Hall Liu <hallliu@google.com> Tue Apr 10 17:13:04 2018 -0700
committer Hall Liu <hallliu@google.com> Wed Apr 11 18:33:00 2018 +0000
tree d873bc3878ed9edd1b9b1a6452181e0cea759521
parent b0398e4ae38ce4d532e6b815fcd0a7e8755f7d8b

Ensure calls are audible upon starting

Check volume on STREAM_VOICE_CALL. If zero, set it to the default before
proceeding with either an incoming or outgoing call.

Change-Id: I210d95f59fe73586dd4d3202cca3b3eb3e500d0c
Fixes: 73956232
Test: manual

src/com/android/server/telecom/CallsManager.java

diff --git a/src/com/android/server/telecom/CallsManager.java b/src/com/android/server/telecom/CallsManager.java
index 099e6d3..f51ff7c 100644
--- a/src/com/android/server/telecom/CallsManager.java
+++ b/src/com/android/server/telecom/CallsManager.java
@@ -23,6 +23,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.media.AudioManager;
+import android.media.AudioSystem;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
@@ -1909,6 +1910,7 @@
         setCallState(call, CallState.DIALING, "dialing set explicitly");
         maybeMoveToSpeakerPhone(call);
         maybeTurnOffMute(call);
+        ensureCallAudible();
     }
 
     void markCallAsPulling(Call call) {
@@ -1962,6 +1964,7 @@
         } else {
             setCallState(call, CallState.ACTIVE, "active set explicitly");
             maybeMoveToSpeakerPhone(call);
+            ensureCallAudible();
         }
     }
 
@@ -2958,6 +2961,19 @@
         }
     }
 
+    private void ensureCallAudible() {
+        AudioManager am = mContext.getSystemService(AudioManager.class);
+        if (am == null) {
+            Log.w(this, "ensureCallAudible: audio manager is null");
+            return;
+        }
+        if (am.getStreamVolume(AudioManager.STREAM_VOICE_CALL) == 0) {
+            Log.i(this, "ensureCallAudible: voice call stream has volume 0. Adjusting to default.");
+            am.setStreamVolume(AudioManager.STREAM_VOICE_CALL,
+                    AudioSystem.getDefaultStreamVolume(AudioManager.STREAM_VOICE_CALL), 0);
+        }
+    }
+
     /**
      * Creates a new call for an existing connection.
      *