avplay: update patch to accommodate SDL change

Fixes #147.

src/app/avplay/avplay.patch

@@ -12,7 +12,7 @@
  static int av_sync_type = AV_SYNC_AUDIO_MASTER;
  static int64_t start_time = AV_NOPTS_VALUE;
  static int64_t duration = AV_NOPTS_VALUE;
-@@ -902,6 +902,16 @@
+@@ -902,6 +902,18 @@
         && is->height== screen->h && screen->h == h)
          return 0;
  
@@ -23,13 +23,15 @@
 +        return -1;
 +    }
 +
-+    w = modes[0]->w;
-+    h = modes[0]->h;
++    if (modes != (SDL_Rect**)-1) {
++        w = modes[0]->w;
++        h = modes[0]->h;
++    }
 +
  #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
      /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
      screen = SDL_SetVideoMode(w, h, 24, flags);
-@@ -962,7 +972,7 @@
+@@ -962,7 +974,7 @@
                          av_get_bytes_per_sample(is->sdl_sample_fmt);
      }
      if (bytes_per_sec)