From 8cdbfb676ea31c6719e6f6e8ae7a44e060a5987f Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Sun, 25 Aug 2013 02:47:49 +0200
Subject: GLMediaPlayer/AudioSink: Add set[Audio]Volume(float
v)/get[Audio]Volume() allowing to change the audio volume.
---
.../jogamp/opengl/openal/av/ALAudioSink.java | 31 +++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
(limited to 'src/jogl/classes/jogamp/opengl/openal/av')
diff --git a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
index f9ca0c028..d3964a2cf 100644
--- a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
@@ -58,7 +58,8 @@ public class ALAudioSink implements AudioSink {
/** Playback speed, range [0.5 - 2.0], default 1.0. */
private float playSpeed;
-
+ private float volume = 1.0f;
+
static class ALAudioFrame extends AudioFrame {
private final int alBuffer;
@@ -685,6 +686,34 @@ public class ALAudioSink implements AudioSink {
return false;
}
+ @Override
+ public final float getVolume() {
+ return volume;
+ }
+
+ @Override
+ public final boolean setVolume(float v) {
+ if( !initialized || null == chosenFormat ) {
+ return false;
+ }
+ lockContext();
+ try {
+ if( Math.abs(v) < 0.01f ) {
+ v = 0.0f;
+ } else if( Math.abs(1.0f - v) < 0.01f ) {
+ v = 1.0f;
+ }
+ if( 0.0f <= v && v <= 1.0f ) { // OpenAL limits
+ volume = v;
+ al.alSourcef(alSource[0], AL.AL_GAIN, v);
+ return true;
+ }
+ } finally {
+ unlockContext();
+ }
+ return false;
+ }
+
@Override
public final void flush() {
if( !initialized || null == chosenFormat ) {
--
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