From cfd788bec02191f53b297982bf1fccac413e9c81 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Mon, 17 Mar 2014 14:20:12 -0400
Subject: [PATCH] Use the minimum stream buffer size and the sample size when
 choosing a buffer size

---
 .../binding/audio/AndroidAudioRenderer.java       | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/com/limelight/binding/audio/AndroidAudioRenderer.java b/src/com/limelight/binding/audio/AndroidAudioRenderer.java
index f7e3c1c5..0c2f5da4 100644
--- a/src/com/limelight/binding/audio/AndroidAudioRenderer.java
+++ b/src/com/limelight/binding/audio/AndroidAudioRenderer.java
@@ -4,15 +4,19 @@ import android.media.AudioFormat;
 import android.media.AudioManager;
 import android.media.AudioTrack;
 
+import com.limelight.LimeLog;
 import com.limelight.nvstream.av.audio.AudioRenderer;
 
 public class AndroidAudioRenderer implements AudioRenderer {
 
+	public static final int FRAME_SIZE = 960;
+	
 	private AudioTrack track;
 
 	@Override
 	public void streamInitialized(int channelCount, int sampleRate) {
 		int channelConfig;
+		int bufferSize;
 
 		switch (channelCount)
 		{
@@ -26,11 +30,20 @@ public class AndroidAudioRenderer implements AudioRenderer {
 			throw new IllegalArgumentException("Decoder returned unhandled channel count");
 		}
 
+		bufferSize = Math.max(AudioTrack.getMinBufferSize(sampleRate,
+				channelConfig,
+				AudioFormat.ENCODING_PCM_16BIT),
+				FRAME_SIZE * 2);
+		
+		// Round to next frame
+		bufferSize = (((bufferSize + (FRAME_SIZE - 1)) / FRAME_SIZE) * FRAME_SIZE);
+		
+		LimeLog.info("Audio track buffer size: "+bufferSize);
 		track = new AudioTrack(AudioManager.STREAM_MUSIC,
 				sampleRate,
 				channelConfig,
 				AudioFormat.ENCODING_PCM_16BIT,
-				1024, // 1KB buffer
+				bufferSize,
 				AudioTrack.MODE_STREAM);
 
 		track.play();