fate: add test for offset theora

tests/fate/vpx.mak

@@ -1,6 +1,9 @@
 FATE_VP3-$(call DEMDEC, MATROSKA, THEORA) += fate-theora-coeff-level64
 fate-theora-coeff-level64: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/vp3/coeff_level64.mkv
 
+FATE_VP3-$(call DEMDEC, OGG, THEORA) += fate-theora-offset
+fate-theora-offset: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/vp3/offset_test.ogv
+
 FATE_VP3-$(call DEMDEC, AVI, VP3) += fate-vp31
 fate-vp31: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/vp3/vp31.avi
 

tests/ref/fate/theora-offset

@@ -0,0 +1,11 @@
+#tb 0: 1/1
+0,          0,          0,        1,   393216, 0xdc998fa2
+0,          1,          1,        1,   393216, 0x979a8fbd
+0,          2,          2,        1,   393216, 0x979a8fbd
+0,          3,          3,        1,   393216, 0x979a8fbd
+0,          4,          4,        1,   393216, 0x979a8fbd
+0,          5,          5,        1,   393216, 0x979a8fbd
+0,          6,          6,        1,   393216, 0x979a8fbd
+0,          7,          7,        1,   393216, 0x979a8fbd
+0,          8,          8,        1,   393216, 0x979a8fbd
+0,          9,          9,        1,   393216, 0x979a8fbd