--- a/render.h	Wed Jan 18 21:30:20 2017 -0800
+++ b/render.h	Wed Jan 18 23:43:36 2017 -0800
@@ -57,10 +57,17 @@
 #include "psg.h"
 #include "ym2612.h"
 
+typedef enum {
+	VID_NTSC,
+	VID_PAL,
+	NUM_VID_STD
+} vid_std;
+
 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b);
 uint32_t *render_get_framebuffer(uint8_t which, int *pitch);
 void render_framebuffer_updated(uint8_t which, int width);
 void render_init(int width, int height, char * title, uint8_t fullscreen);
+void render_set_video_standard(vid_std std);
 void render_update_caption(char *title);
 void render_wait_quit(vdp_context * context);
 void render_wait_psg(psg_context * context);