From 1135457a3d656057fc65effd706ae238a5f99a50 Mon Sep 17 00:00:00 2001
From: Paul McLean <pmclean@google.com>
Date: Fri, 7 Aug 2015 12:50:48 -0600
Subject: [PATCH] Filtering Remote-Submix and Back-mic devices from
 AudioDeviceInfo API.

Bug: 22729461
Change-Id: Ie581c385af2be16e61fcab5993391ef42f82a7d8
---
 media/java/android/media/AudioManager.java | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index 5290cacb300ce..875e7165fa810 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -3757,6 +3757,12 @@ public class AudioManager {
                port.role() == AudioPort.ROLE_SOURCE && (flags & GET_DEVICES_INPUTS) != 0;
     }
 
+    private static boolean checkTypes(AudioDevicePort port) {
+        return AudioDeviceInfo.convertInternalDeviceToDeviceType(port.type()) !=
+                    AudioDeviceInfo.TYPE_UNKNOWN &&
+                port.type() != AudioSystem.DEVICE_IN_BACK_MIC;
+    }
+
     /**
      * Returns an array of {@link AudioDeviceInfo} objects corresponding to the audio devices
      * currently connected to the system and meeting the criteria specified in the
@@ -3779,7 +3785,7 @@ public class AudioManager {
         // figure out how many AudioDeviceInfo we need space for...
         int numRecs = 0;
         for (AudioDevicePort port : ports) {
-            if (checkFlags(port, flags)) {
+            if (checkTypes(port) && checkFlags(port, flags)) {
                 numRecs++;
             }
         }
@@ -3788,7 +3794,7 @@ public class AudioManager {
         AudioDeviceInfo[] deviceList = new AudioDeviceInfo[numRecs];
         int slot = 0;
         for (AudioDevicePort port : ports) {
-            if (checkFlags(port, flags)) {
+            if (checkTypes(port) && checkFlags(port, flags)) {
                 deviceList[slot++] = new AudioDeviceInfo(port);
             }
         }