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Merge pull request #1 from irtimmer/master

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Use a byte buffer for audio to minimize buffer copy's
This commit is contained in:
Cameron Gutman 2014-01-08 18:19:25 -08:00
commit 84551df36a
5 changed files with 14 additions and 40 deletions
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28
moonlight-common/src/com/limelight/nvstream/av/ShortBufferDescriptor.java
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@ -1,28 +0,0 @@
package com.limelight.nvstream.av;
public class ShortBufferDescriptor {
public short[] data;
public int offset;
public int length;
public ShortBufferDescriptor(short[] data, int offset, int length)
{
this.data = data;
this.offset = offset;
this.length = length;
}
public ShortBufferDescriptor(ShortBufferDescriptor desc)
{
this.data = desc.data;
this.offset = desc.offset;
this.length = desc.length;
}
public void reinitialize(short[] data, int offset, int length)
{
this.data = data;
this.offset = offset;
this.length = length;
}
}

18
moonlight-common/src/com/limelight/nvstream/av/audio/AudioDepacketizer.java
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@ -4,13 +4,15 @@ import java.util.concurrent.LinkedBlockingQueue;
import com.limelight.nvstream.av.ByteBufferDescriptor;
import com.limelight.nvstream.av.RtpPacket;
import com.limelight.nvstream.av.ShortBufferDescriptor;
import com.limelight.nvstream.av.ByteBufferDescriptor;
import java.nio.ByteBuffer;
import java.nio.ShortBuffer;
public class AudioDepacketizer {
private static final int DU_LIMIT = 15;
private LinkedBlockingQueue<ShortBufferDescriptor> decodedUnits =
new LinkedBlockingQueue<ShortBufferDescriptor>(DU_LIMIT);
private LinkedBlockingQueue<ByteBufferDescriptor> decodedUnits =
new LinkedBlockingQueue<ByteBufferDescriptor>(DU_LIMIT);
// Sequencing state
private short lastSequenceNumber;
@ -18,15 +20,15 @@ public class AudioDepacketizer {
private void decodeData(byte[] data, int off, int len)
{
// Submit this data to the decoder
short[] pcmData = new short[OpusDecoder.getMaxOutputShorts()];
byte[] pcmData = new byte[OpusDecoder.getMaxOutputShorts()*2];
int decodeLen = OpusDecoder.decode(data, off, len, pcmData);
if (decodeLen > 0) {
// Return value of decode is frames decoded per channel
decodeLen *= OpusDecoder.getChannelCount();
// Return value of decode is frames (shorts) decoded per channel
decodeLen *= 2*OpusDecoder.getChannelCount();
// Put it on the decoded queue
if (!decodedUnits.offer(new ShortBufferDescriptor(pcmData, 0, decodeLen))) {
if (!decodedUnits.offer(new ByteBufferDescriptor(pcmData, 0, decodeLen))) {
System.out.println("Audio player too slow! Forced to drop decoded samples");
// Clear out the queue
decodedUnits.clear();
@ -59,7 +61,7 @@ public class AudioDepacketizer {
decodeData(rtpPayload.data, rtpPayload.offset, rtpPayload.length);
}
public ShortBufferDescriptor getNextDecodedData() throws InterruptedException
public ByteBufferDescriptor getNextDecodedData() throws InterruptedException
{
return decodedUnits.take();
}

2
moonlight-common/src/com/limelight/nvstream/av/audio/AudioRenderer.java
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@ -3,7 +3,7 @@ package com.limelight.nvstream.av.audio;
public interface AudioRenderer {
public void streamInitialized(int channelCount, int sampleRate);
public void playDecodedAudio(short[] audioData, int offset, int length);
public void playDecodedAudio(byte[] audioData, int offset, int length);
public void streamClosing();
}

4
moonlight-common/src/com/limelight/nvstream/av/audio/AudioStream.java
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@ -12,7 +12,7 @@ import java.util.concurrent.LinkedBlockingQueue;
import com.limelight.nvstream.NvConnectionListener;
import com.limelight.nvstream.av.ByteBufferDescriptor;
import com.limelight.nvstream.av.RtpPacket;
import com.limelight.nvstream.av.ShortBufferDescriptor;
import com.limelight.nvstream.av.ByteBufferDescriptor;
public class AudioStream {
public static final int RTP_PORT = 48000;
@ -140,7 +140,7 @@ public class AudioStream {
public void run() {
while (!isInterrupted())
{
ShortBufferDescriptor samples;
ByteBufferDescriptor samples;
try {
samples = depacketizer.getNextDecodedData();

2
moonlight-common/src/com/limelight/nvstream/av/audio/OpusDecoder.java
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@ -10,5 +10,5 @@ public class OpusDecoder {
public static native int getChannelCount();
public static native int getMaxOutputShorts();
public static native int getSampleRate();
public static native int decode(byte[] indata, int inoff, int inlen, short[] outpcmdata);
public static native int decode(byte[] indata, int inoff, int inlen, byte[] outpcmdata);
}