* AVI video output

- Uses motion jpeg codec by default
  - Use cl_avidemo to set a framerate
  - \video [filename] to start capture
  - \stopvideo to stop capture
  - Audio capture is a bit ropey

code/renderer/tr_cmds.c

@@ -445,3 +445,30 @@ void RE_EndFrame( int *frontEndMsec, int *backEndMsec ) {
 	backEnd.pc.msec = 0;
 }
 
+/*
+=============
+RE_TakeVideoFrame
+=============
+*/
+void RE_TakeVideoFrame( int width, int height,
+		byte *captureBuffer, byte *encodeBuffer, qboolean motionJpeg )
+{
+	videoFrameCommand_t	*cmd;
+
+	if( !tr.registered ) {
+		return;
+	}
+
+	cmd = R_GetCommandBuffer( sizeof( *cmd ) );
+	if( !cmd ) {
+		return;
+	}
+
+	cmd->commandId = RC_VIDEOFRAME;
+
+	cmd->width = width;
+	cmd->height = height;
+	cmd->captureBuffer = captureBuffer;
+	cmd->encodeBuffer = encodeBuffer;
+	cmd->motionJpeg = motionJpeg;
+}