1 files changed, 38 insertions, 0 deletions
diff --git a/Ryujinx.Graphics/VDec/VpxBitStreamWriter.cs b/Ryujinx.Graphics/VDec/VpxBitStreamWriter.cs
new file mode 100644
index 00000000..0c712d2c
--- /dev/null
+++ b/Ryujinx.Graphics/VDec/VpxBitStreamWriter.cs
@@ -0,0 +1,38 @@
+using System.IO;
+
+namespace Ryujinx.Graphics.VDec
+{
+    class VpxBitStreamWriter : BitStreamWriter
+    {
+        public VpxBitStreamWriter(Stream BaseStream) : base(BaseStream) { }
+
+        public void WriteU(int Value, int ValueSize)
+        {
+            WriteBits(Value, ValueSize);
+        }
+
+        public void WriteS(int Value, int ValueSize)
+        {
+            bool Sign = Value < 0;
+
+            if (Sign)
+            {
+                Value = -Value;
+            }
+
+            WriteBits((Value << 1) | (Sign ? 1 : 0), ValueSize + 1);
+        }
+
+        public void WriteDeltaQ(int Value)
+        {
+            bool DeltaCoded = Value != 0;
+
+            WriteBit(DeltaCoded);
+
+            if (DeltaCoded)
+            {
+                WriteBits(Value, 4);
+            }
+        }
+    }
+}
+\ No newline at end of file