1 files changed, 51 insertions, 0 deletions
diff --git a/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/objectdescriptors/.svn/text-base/BitReaderBuffer.java.svn-base b/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/objectdescriptors/.svn/text-base/BitReaderBuffer.java.svn-base
new file mode 100644
index 0000000..7221503
--- /dev/null
+++ b/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/objectdescriptors/.svn/text-base/BitReaderBuffer.java.svn-base
@@ -0,0 +1,51 @@
+package com.googlecode.mp4parser.boxes.mp4.objectdescriptors;
+
+import java.nio.ByteBuffer;
+
+public class BitReaderBuffer {
+
+    private ByteBuffer buffer;
+    int initialPos;
+    int position;
+
+    public BitReaderBuffer(ByteBuffer buffer) {
+        this.buffer = buffer;
+        initialPos = buffer.position();
+    }
+
+    public int readBits(int i) {
+        byte b = buffer.get(initialPos + position / 8);
+        int v = b < 0 ? b + 256 : b;
+        int left = 8 - position % 8;
+        int rc;
+        if (i <= left) {
+            rc = (v << (position % 8) & 0xFF) >> ((position % 8) + (left - i));
+            position += i;
+        } else {
+            int now = left;
+            int then = i - left;
+            rc = readBits(now);
+            rc = rc << then;
+            rc += readBits(then);
+        }
+        buffer.position(initialPos + (int) Math.ceil((double) position / 8));
+        return rc;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    public int byteSync() {
+        int left = 8 - position % 8;
+        if (left == 8) {
+            left = 0;
+        }
+        readBits(left);
+        return left;
+    }
+
+    public int remainingBits() {
+        return buffer.limit() * 8 - position;
+    }
+}