Added support for audio data from .resS files

src/info/ata4/unity/asset/AssetFile.java

@@ -44,6 +44,7 @@ public class AssetFile extends MappedFileHandler {
     private static final int HEADER_SIZE = 20;
 
     private ByteBuffer bbData;
+    private ByteBuffer bbAudio;
     private AssetHeader header = new AssetHeader();
     private AssetTypeTree typeTree = new AssetTypeTree();
     private AssetObjectPathTable objTable = new AssetObjectPathTable();
@@ -75,6 +76,12 @@ public void load(File file, boolean map) throws IOException {
         } else {
             super.load(file, map);
         }
+
+        // load audio stream if existing
+        File audioStreamFile = new File(file.getParentFile(), fileName + ".resS");
+        if (audioStreamFile.exists()) {
+            bbAudio = ByteBufferUtils.load(audioStreamFile.toPath());
+        }
     }
 
     @Override
@@ -183,6 +190,14 @@ public ByteBuffer getDataBuffer() {
     public void setDataBuffer(ByteBuffer bbData) {
         this.bbData = bbData;
     }
+
+    public ByteBuffer getAudioBuffer() {
+        return bbAudio;
+    }
+
+    public void setAudioBuffer(ByteBuffer bbAudio) {
+        this.bbAudio = bbAudio;
+    }
 
     public AssetHeader getHeader() {
         return header;

src/info/ata4/unity/cli/extract/AssetExtractor.java

@@ -130,6 +130,11 @@ public void extract(File dir, boolean raw) throws IOException {
         for (AssetExtractHandler extractHandler : extractHandlerMap.values()) {
             extractHandler.setExtractDir(dir);
             extractHandler.setAssetFormat(format);
+
+            // set external audio buffer for AudioClips
+            if (extractHandler instanceof AudioClipHandler) {
+                ((AudioClipHandler) extractHandler).setAudioBuffer(asset.getAudioBuffer());
+            }
         }
 
         for (AssetObjectPath path : pathTable) {

src/info/ata4/unity/cli/extract/handler/AudioClipHandler.java

@@ -14,8 +14,10 @@
 import info.ata4.unity.enums.AudioType;
 import info.ata4.unity.serdes.UnityBuffer;
 import info.ata4.unity.serdes.UnityObject;
+import info.ata4.util.io.ByteBufferUtils;
 import java.io.IOException;
 import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
 import java.util.Collections;
 import java.util.EnumMap;
 import java.util.Map;
@@ -46,19 +48,40 @@ public class AudioClipHandler extends AssetExtractHandler {
         extMap.put(AudioType.AUDIOQUEUE, "caf");
         AUDIO_EXT = Collections.unmodifiableMap(extMap);
     }
+
+    private ByteBuffer audioBufferAux;
+
+    public ByteBuffer getAudioBuffer() {
+        return audioBufferAux;
+    }
+
+    public void setAudioBuffer(ByteBuffer audioBufferAux) {
+        this.audioBufferAux = audioBufferAux;
+    }
 
     @Override
     public void extract(AssetObjectPath path, UnityObject obj) throws IOException {
         String name = obj.getValue("m_Name");
+
         UnityBuffer audioData = obj.getValue("m_AudioData");
         ByteBuffer audioBuffer = audioData.getBuffer();
-
-        if (audioBuffer.capacity() == 0) {
-            L.log(Level.WARNING, "Audio clip {0} empty", name);
-            return;
-        }
+        audioBuffer.order(ByteOrder.LITTLE_ENDIAN);
 
-        AudioType type = AudioType.fromOrdinal((int) obj.getValue("m_Type"));
+        // load audio buffer from external buffer if stream is set to 2
+        int stream = obj.getValue("m_Stream");
+        if (stream == 2) {
+            L.log(Level.FINE, "{0} uses external audio buffer", name);
+
+            int offset = audioBuffer.getInt();
+            int size = audioBuffer.capacity();
+            audioBuffer.rewind();
+
+            audioBuffer.put(ByteBufferUtils.getSlice(audioBufferAux, offset, size));
+            audioBuffer.rewind();
+        }
+
+        int typeInt = obj.getValue("m_Type");
+        AudioType type = AudioType.fromOrdinal(typeInt);
 
         if (type == null) {
             L.log(Level.WARNING, "Audio clip {0} uses unknown audio type {1}",