Increase Psygnosis YOP palette dynamics.

libavcodec/yop.c

@@ -221,7 +221,8 @@ static int yop_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         palette[i + firstcolor] = (s->srcptr[0] << 18) |
                                   (s->srcptr[1] << 10) |
                                   (s->srcptr[2] << 2);
-        palette[i + firstcolor] |= 0xFF << 24;
+        palette[i + firstcolor] |= 0xFF << 24 |
+                                   (palette[i + firstcolor] >> 6) & 0x30303;
     }
 
     s->frame.palette_has_changed = 1;

tests/ref/fate/yop

-0, 0, 302760, 0x78939253
-0, 7500, 302760, 0x534f5253
-0, 15000, 302760, 0xe991aa82
-0, 22500, 302760, 0xc34b20bd
-0, 30000, 302760, 0x461d29a1
-0, 37500, 302760, 0x45abca02
-0, 45000, 302760, 0xb05448b9
+0, 0, 302760, 0xf24dfa37
+0, 7500, 302760, 0xcedcbb6c
+0, 15000, 302760, 0x8c2d19a2
+0, 22500, 302760, 0xe0fc92da
+0, 30000, 302760, 0xd7699bb4
+0, 37500, 302760, 0x26e93266
+0, 45000, 302760, 0x4cddb216