fate: add test for vp90-2-trac3849.webm

Regression test for the bug from trac ticket #3849 fixed in commit 14e30255

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

tests/fate/vpx.mak

@@ -98,6 +98,7 @@ $(eval $(call FATE_VP9_SUITE,parallelmode-akiyo,$(1),$(2)))
 $(eval $(call FATE_VP9_SUITE,segmentation-aq-akiyo,$(1),$(2)))
 $(eval $(call FATE_VP9_SUITE,segmentation-sf-akiyo,$(1),$(2)))
 $(eval $(call FATE_VP9_SUITE,tiling-pedestrian,$(1),$(2)))
+$(eval $(call FATE_VP9_SUITE,trac3849,$(1),$(2)))
 endef
 
 $(eval $(call FATE_VP9_FULL))

tests/ref/fate/vp9-trac3849

@@ -0,0 +1,15 @@
+#format: frame checksums
+#version: 1
+#hash: MD5
+#tb 0: 1/30
+#stream#, dts,        pts, duration,     size, hash
+0,          0,          0,        1,   345600, c2ee30cb4529fcbd61938af1887e2b45
+0,          1,          1,        1,   345600, 946e9bfee03777a07c122df038087d92
+0,          2,          2,        1,   345600, 5dd1916a4bad6e94393f6a50a37c823d
+0,          3,          3,        1,   345600, 2f2760d8dcecc1854fd665892382c3af
+0,          4,          4,        1,   345600, 70418b01ae59e2885457b62b7f416bac
+0,          5,          5,        1,   345600, bda937bb934a6eba193daadccdaa418d
+0,          6,          6,        1,   345600, 8348bbb7c260dec6baa135c8f16348a9
+0,          7,          7,        1,   345600, d45bf60db5f25e774d32975eca01f9c7
+0,          8,          8,        1,   345600, 980e73d96767b2097adf26e0ea31d50e
+0,          9,          9,        1,   345600, 66fda810a9a35f1ce57d6f2351b73c13