buffer up all the audio upfront

OpenRA.Game/Widgets/VqaPlayerWidget.cs

@@ -6,14 +6,12 @@
  * as published by the Free Software Foundation. For more information,
  * see LICENSE.
  */
-#endregion
-using System;
-using System.Drawing;
-using System.Linq;
+#endregion
+
+using System;
+using System.Drawing;
+using OpenRA.FileFormats;
 using OpenRA.Graphics;
-using OpenRA.Traits;
-using OpenRA.Widgets;
-using OpenRA.FileFormats;
 
 namespace OpenRA.Widgets
 {
@@ -37,19 +35,22 @@ namespace OpenRA.Widgets
 		int lastTime;
 		bool advanceNext = false;
 		public override void DrawInner(World world)
-		{
-			if (video == null)
-				LoadVideo(Video);
+		{
+			if (video == null)
+			{
+				LoadVideo(Video);
+				Sound.PlayRaw(video.AudioData);
+			}
 			
 			int t = Environment.TickCount;
 			int dt = t - lastTime;
 			
 			if (advanceNext)
-			{
+			{
+				if (video.CurrentFrame == 0)
+					Sound.PlayRaw(video.AudioData);
 				advanceNext = false;
-				video.AdvanceFrame();
-
-				Sound.PlayRaw(video.AudioData);
+				video.AdvanceFrame();
 			}
 			
 			if (dt > timestep)