FFMPEGPlayer Audio Sink Refactoring ..

- AudioSink w/ AudioFrame and formats public

- ALAudioSink uses a circular buffer now, hence relaxes the one-threaded player mode

- FFMPEGMediaPlayer uses multiple audio frames (equal to the ALAudioSink number)
  and wraps data to NIO buffer w/o copy.

- FFMPEGMediaPlayer audio threading currently disabled: distorted sound
  Seems that the ALAudioSink's circular buffer usage is good enough for now.

- Verbosity only w/ DEBUG flag

- New SyncedRingbuffer for effcient synced buffering

1 files changed, 168 insertions, 0 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/av/AudioSink.java b/src/jogl/classes/com/jogamp/opengl/util/av/AudioSink.java
new file mode 100644
index 000000000..5caeb969a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/util/av/AudioSink.java
@@ -0,0 +1,168 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.opengl.util.av;
+
+import java.nio.ByteBuffer;
+
+import jogamp.opengl.Debug;
+
+public interface AudioSink {
+    public static final boolean DEBUG = Debug.debug("AudioSink");
+    
+    /** Specifies the audio data type. Currently only PCM is supported. */
+    public static enum AudioDataType { PCM };
+    
+    /**
+     * Specifies the audio data format.
+     */
+    public static class AudioDataFormat {
+        public AudioDataFormat(AudioDataType dataType, int sampleRate, int sampleSize, int channelCount, boolean signed, boolean littleEndian) {
+            this.dataType = dataType;
+            this.sampleRate = sampleRate;
+            this.sampleSize = sampleSize;
+            this.channelCount = channelCount;
+            this.signed = signed;
+            this.littleEndian = littleEndian;
+        }
+        /** Audio data type. */
+        public final AudioDataType dataType;
+        /** Sample rate in Hz (1/s). */
+        public final int sampleRate;
+        /** Sample size in bits. */
+        public final int sampleSize;
+        /** Number of channels. */
+        public final int channelCount;
+        public final boolean signed;
+        public final boolean littleEndian;
+        
+        public String toString() { 
+            return "AudioDataFormat[type "+dataType+", sampleRate "+sampleRate+", sampleSize "+sampleSize+", channelCount "+channelCount+
+                   ", signed "+signed+", "+(littleEndian?"little":"big")+"endian]"; }
+    }
+    /** Default {@link AudioDataFormat}, [type PCM, sampleRate 44100, sampleSize 16, channelCount 2, signed, littleEndian]. */    
+    public static final AudioDataFormat DefaultFormat = new AudioDataFormat(AudioDataType.PCM, 44100, 16, 2, true /* signed */, true /* littleEndian */);
+    
+    public static class AudioFrame {
+        public final ByteBuffer data;
+        public final int dataSize;
+        public final int audioPTS;
+        
+        public AudioFrame(ByteBuffer data, int dataSize, int audioPTS) {
+            if( dataSize > data.remaining() ) {
+                throw new IllegalArgumentException("Give size "+dataSize+" exceeds remaining bytes in ls "+data+". "+this);
+            }
+            this.data=data;
+            this.dataSize=dataSize;
+            this.audioPTS=audioPTS;
+        }
+        
+        public String toString() { return "AudioFrame[apts "+audioPTS+", data "+data+", payloadSize "+dataSize+"]"; }
+    }
+    
+    /** 
+     * Returns the <code>initialized state</code> of this instance.
+     * <p>
+     * The <code>initialized state</code> is affected by this instance
+     * overall availability, i.e. after instantiation,
+     * as well as by {@link #destroy()}.
+     * </p> 
+     */
+    public boolean isInitialized();
+
+    /** 
+     * Returns the preferred {@link AudioDataFormat} by this sink.
+     * <p>
+     * The preferred format shall reflect this sinks most native format,
+     * i.e. best performance w/o data conversion. 
+     * </p>
+     * @see #initSink(AudioDataFormat) 
+     */
+    public AudioDataFormat getPreferredFormat();
+    
+    /**
+     * Initializes the sink.
+     * <p>
+     * Implementation shall try to match the given <code>requestedFormat</code> {@link AudioDataFormat}
+     * as close as possible, regarding it's capabilities.
+     * </p>
+     * <p>
+     * A user may consider {@link #getPreferredFormat()} and pass this value
+     * to utilize best performance and <i>behavior</i>. 
+     * </p>
+     * The {@link #DefaultFormat} <i>should be</i> supported by all implementations.
+     * </p>
+     * @param requestedFormat the requested {@link AudioDataFormat}. 
+     * @param bufferCount number of buffers for sink
+     * @return if successful the chosen AudioDataFormat based on the <code>requestedFormat</code> and this sinks capabilities, otherwise <code>null</code>. 
+     */
+    public AudioDataFormat initSink(AudioDataFormat requestedFormat, int bufferCount);
+
+    
+    /** Destroys this instance, i.e. closes all streams and devices allocated. */
+    public void destroy();
+    
+    /** 
+     * Returns the number of bytes queued for playing.
+     * <p>
+     * {@link #initSink(AudioDataFormat)} must be called first.
+     * </p>
+     */
+    public int getQueuedByteCount();
+
+    /** 
+     * Returns the queued buffer time in milliseconds for playing.
+     * <p>
+     * {@link #initSink(AudioDataFormat)} must be called first.
+     * </p>
+     */
+    public int getQueuedTime();
+    
+    /** 
+     * Returns the number of buffers in the sink available for writing.
+     * <p>
+     * {@link #initSink(AudioDataFormat)} must be called first.
+     * </p>
+     */
+    public int getWritableBufferCount();
+    
+    /** 
+     * Returns true if data is available to be written in the sink.
+     * <p>
+     * {@link #initSink(AudioDataFormat)} must be called first.
+     * </p>
+     */
+    public boolean isDataAvailable(int data_size);
+
+    /** 
+     * Writes the remaining bytes of the given direct ByteBuffer to this sink.
+     * <p>
+     * The data must comply with the chosen {@link AudioDataFormat} as returned by {@link #initSink(AudioDataFormat)}.
+     * </p>
+     */
+    public void writeData(AudioFrame audioFrame);
+}