Allow running on pre Jellybean MR1

1 files changed, 12 insertions, 3 deletions

diff --git a/LoopbackApp/app/src/main/java/org/drrickorang/loopback/LoopbackApplication.java b/LoopbackApp/app/src/main/java/org/drrickorang/loopback/LoopbackApplication.java
index 0071f2d..9460a0c 100644
--- a/LoopbackApp/app/src/main/java/org/drrickorang/loopback/LoopbackApplication.java
+++ b/LoopbackApp/app/src/main/java/org/drrickorang/loopback/LoopbackApplication.java
@@ -160,9 +160,14 @@ public class LoopbackApplication extends Application {
 
         if( mAudioThreadType == AUDIO_THREAD_TYPE_NATIVE) {
 
-            AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
-            String value = am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
-            int minBufferSizeInFrames = Integer.parseInt(value);
+            int minBufferSizeInFrames;
+            if (isSafeToUseGetProperty()) {
+                AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
+                String value = am.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
+                minBufferSizeInFrames = Integer.parseInt(value);
+            } else {
+                minBufferSizeInFrames = 1024;
+            }
             int minBufferSizeInBytes = BYTES_PER_FRAME * minBufferSizeInFrames;
 
             setPlayBufferSizeInBytes(minBufferSizeInBytes);
@@ -203,6 +208,10 @@ public class LoopbackApplication extends Application {
         return  Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD;
     }
 
+    boolean isSafeToUseGetProperty() {
+        return  Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
+    }
+
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);